ART APPRECIATION: HUMANITIES, ASSUMPTIONS, AND THE NATURE OF ARTS Art Appreciation helps us understand the meaning, purpose, and value of art. It explores the relationship between the humanities and the arts, the common beliefs people have about art, and the different ways art can be understood and interpreted. I. Humanities and Their Relationship to the Arts A. What Are the Humanities? Humanities are fields of study that focus on human beings, experiences, ideas, values, beliefs, creativity, and culture. The word humanities is associated with the Latin term humanitas, which refers to qualities and learning related to being human. The humanities help us understand human life by exploring questions such as: What does it mean to be human? Why do people create? What do people consider beautiful? How do people express their emotions and beliefs? How does culture influence people’s thinking? How have human ideas changed throughout history? The word humanus means “human” and is associated with being refined, cultured, and worthy of dignity. The humanities are also connected to the philosophical idea expressed by the Greek thinker Protagoras: “Man is the measure of all things.” This emphasizes the role of human beings in understanding and interpreting the world. According to the Webster Dictionary, the humanities include fields such as philosophy, literature, language, and art, excluding theology and the natural and social sciences in the traditional classification. The study of the humanities includes the appreciation of art, which can deepen our understanding of life, reality, and human experiences. B. What Is Art? The word art comes from the Latin word ars, which means skill or ability. Art is a form of human expression through which people communicate their thoughts, emotions, experiences, imagination, beliefs, and perspectives. Art is not limited to beauty. It can also express sadness, anger, humor, social issues, personal experiences, and different views of the world. Art can be understood as a way of grasping the world, particularly human society and spiritual experiences, rather than focusing only on the physical world. Art can take many forms, including the following fine arts: Painting Sculpture Architecture Literature Dance Music Film Works of art can also be classified as verbal or non-verbal. Verbal art uses words to express ideas and emotions. Example: Poems, novels, and plays. Non-verbal art communicates through images, sounds, movements, or forms without relying primarily on words. Example: Paintings, instrumental music, and dance. Art is also influenced by how an artist uses a medium, applies techniques, and expresses the content of an artwork. C. What Is Art? Art is a way for people to share how they experience and understand the world. It can communicate personal feelings, cultural beliefs, social issues, and human experiences. An artwork can be beautiful, emotional, meaningful, thought-provoking, disturbing, humorous, symbolic, or intentionally ordinary. Therefore, art is not limited to objects that people consider beautiful. Its meaning also depends on the artist’s purpose, the methods used, the context, and the viewer’s interpretation. D. Relationship Between Humanities and the Arts The humanities and the arts are closely connected because both explore and communicate human experiences, ideas, emotions, and culture. The humanities help us understand human experiences, while the arts provide ways to express and interpret those experiences. For example, consider a painting depicting poverty. Art communicates the experience of poverty through images, colors, and composition. History explains the social conditions during the period represented. Philosophy encourages us to think about justice and human dignity. Literature presents stories about people experiencing poverty. Sociology helps explain the social relationships and circumstances connected to poverty. This shows that appreciating art involves more than deciding whether an artwork is beautiful. It also requires understanding the artist, society, culture, history, ideas, and emotions behind the work. E. Differences Between Humanities and Art Arts focus more on the creative and expressive aspects of human culture. They involve creating works that communicate ideas, emotions, and experiences. Humanities focus more on studying, analyzing, and interpreting human experiences and cultural works. Arts often emphasize the form, style, techniques, and materials used to create an artwork. Humanities often emphasize the content, meaning, values, and historical or cultural context of a work. Art can be personal and subjective because people may interpret an artwork differently. The humanities use analysis and interpretation to understand human experiences, although interpretations may also vary. F. Importance of Arts and Humanities Arts and humanities help students become well-rounded individuals who can: Become adaptable by understanding different situations and perspectives. Think creatively by developing original ideas and solutions. Develop critical thinking by analyzing and interpreting information. Become responsible citizens by understanding society, culture, and human differences. Improve communication by learning different ways to express ideas and emotions. Understand others by recognizing different experiences, beliefs, and values. II. Why Do We Study Art? Art Appreciation develops our ability to observe, interpret, analyze, and evaluate works of art. 1. Art Develops Creativity Art encourages people to think beyond ordinary ideas and explore different possibilities. Example: Creating a sculpture using clay allows an artist to experiment with different shapes and forms. 2. Art Communicates Emotions Art allows people to express feelings that may be difficult to communicate through ordinary language. Example: Music can communicate sadness, excitement, peace, or nostalgia. 3. Art Reflects Culture Art shows the traditions, beliefs, lifestyles, and values of a particular community. Example: Traditional Filipino weaving, dances, architecture, and music provide insights into Filipino culture. 4. Art Records History Artworks can provide evidence of past events, traditions, people, and ways of life. Example: Historical paintings can show how people dressed and how important events were represented in the past. 5. Art Develops Empathy Art allows us to understand experiences and perspectives that may be different from our own. Example: A film about poverty can help viewers understand the struggles of people living in difficult conditions. 6. Art Encourages Critical Thinking Art encourages viewers to examine and question what they see rather than simply accepting an artwork at face value. When appreciating art, ask: Why did the artist create this? What does the artwork mean? What message is being communicated? Why did the artist use these materials? How does the artwork make me feel? Does the artwork reflect the society in which it was created? These questions help us understand an artwork beyond its physical appearance. COMMON ASSUMPTIONS ABOUT ARTS An important part of Art Appreciation is examining our assumptions. People often have preconceived ideas about what art should be. Assumption 1: "Art must be beautiful." Assumption 2: "I can't appreciate art because I am not talented." Assumption 3: "Art is only for talented people." Assumption 4: "Art must look realistic." Assumption 5: "Expensive art is automatically good art." Assumption 6: "Art has no practical purpose." CLASSIFICATIONS OF ARTS Art can be classified in different ways. One common approach is to group it according to the medium or form used. Visual Arts Performing Arts Literary Arts Applied Arts Traditional and Contemporary Art The Nature of Art Functions and Theories of Arts Art has existed in virtually every human society. Across time and cultures, people have created artworks not only for beauty but also for communication, worship, political expression, social identity, education, remembrance, and personal expression. Understanding the functions of art helps explain why art is made, while studying art theories provides different ways of interpreting and evaluating artworks. Lesson 2. I. Functions of Art The function of art refers to the purpose, role, or use that an artwork serves for an individual, a community, or society. A single artwork can perform several functions at the same time. 1. Personal Function Art can serve the personal needs of the artist or viewer. Artists often create art to express emotions, experiences, beliefs, dreams, memories, or personal identity. Personal functions may include: expressing emotions and feelings; exploring personal experiences; relieving stress or emotional tension; developing creativity; expressing identity and individuality; communicating ideas that may be difficult to express through words. For example, a painter may create an artwork after experiencing sadness, happiness, fear, or loss. The resulting work becomes a visual representation of the artist's emotional experience. Art can also affect viewers personally. A song, painting, sculpture, or film may inspire someone, remind them of an experience, or help them understand their own feelings. Example: Vincent van Gogh's The Starry Night is often discussed in relation to emotion and personal experience. Its swirling sky, intense movement, and expressive colors contribute to its emotional impact. 2. Aesthetic Function The aesthetic function of art focuses on beauty, visual pleasure, harmony, creativity, and appreciation of form. Art may be created simply because people enjoy looking at beautiful or interesting things. Artists achieve aesthetic qualities through elements such as: color; line; shape; texture; balance; proportion; rhythm; harmony; contrast; composition. Aesthetic value does not necessarily mean that an artwork must be traditionally beautiful. Some works may be strange, unsettling, or unconventional yet still provide a powerful aesthetic experience. Example: Decorative patterns found in textiles, pottery, architecture, and jewelry often serve both practical and aesthetic purposes. 3. Social Function Art performs a social function when it influences, reflects, or addresses relationships among people and communities. Art can help strengthen: community identity; cultural traditions; shared values; social relationships; collective memory. It can also draw attention to social problems such as: discrimination; poverty; inequality; violence; environmental destruction; human-rights concerns. Murals, films, posters, songs, photography, and public performances are commonly used to communicate social messages. Example: Community murals may depict local history, important personalities, cultural traditions, or social struggles. 4. Political Function Art has long been used to influence political thought and public opinion. Political art may: support governments or leaders; criticize political systems; encourage nationalism; promote revolution or reform; protest injustice; expose corruption; defend human rights. Throughout history, governments have also commissioned art to demonstrate political power. Statues, monuments, portraits, architecture, posters, and propaganda are examples of artworks that may have political functions. Example: Political cartoons often use humor, exaggeration, symbolism, and satire to comment on government policies or public officials. 5. Religious and Spiritual Function Religion has been one of the most important influences on art throughout history. Art has been used to: represent gods, saints, ancestors, or spiritual beings; tell religious stories; decorate sacred spaces; support prayer or meditation; communicate religious teachings; strengthen faith; perform rituals. Examples include: church paintings; religious icons; Buddhist sculptures; Islamic calligraphy; Hindu temple sculptures; Indigenous ritual objects. Many great works of architecture were created primarily for religious purposes, including churches, mosques, temples, shrines, and cathedrals. 6. Cultural Function Art preserves and expresses the culture of a society. Through art, communities communicate their: beliefs; customs; traditions; values; historical experiences; symbols; languages; ways of life. Traditional dances, textiles, music, pottery, architecture, festivals, and crafts preserve cultural identity from one generation to another. Philippine example: Indigenous weaving traditions such as T'nalak, Inabel, and other regional textiles demonstrate local craftsmanship, cultural identity, symbolism, and community traditions. 7. Historical Function Art can act as a visual record of history. Paintings, sculptures, architecture, photographs, monuments, and other works may reveal information about: clothing; technology; social classes; occupations; beliefs; political events; wars; ceremonies; daily life. Although an artwork should not always be treated as a completely objective historical record, it can provide valuable evidence about how people understood their world. Example: Historical paintings may portray important national events and help preserve collective memory. 8. Educational Function Art can teach people ideas, values, skills, or information. Before widespread literacy, paintings, sculptures, and stained-glass windows often communicated religious or historical stories to people who could not read. Today, art continues to educate through: posters; illustrations; films; documentaries; infographics; cartoons; theater; murals; educational videos. Art can make complicated ideas easier to understand because it combines information with visual or emotional experience. 9. Economic Function Art also contributes to economic activity. Artists and creative professionals work in industries such as: painting; sculpture; architecture; fashion; advertising; graphic design; photography; filmmaking; animation; music; theater; game design; crafts. Museums, galleries, concerts, cultural festivals, tourism, and art markets also generate employment and income. Art therefore has both cultural and economic value. 10. Practical or Utilitarian Function Some artworks combine beauty with practical use. Examples include: pottery; furniture; clothing; architecture; jewelry; baskets; textiles; household decorations. A chair, for example, has the practical function of providing a place to sit. However, its design may also demonstrate artistic creativity. This connection is especially visible in applied arts, crafts, architecture, and industrial design. 11. Commemorative Function Art can preserve the memory of important people, places, or events. Examples include: monuments; statues; memorials; portraits; historical markers. Commemorative artworks allow societies to remember historical achievements, tragedies, sacrifices, and national heroes. 12. Entertainment Function Art can also provide enjoyment and recreation. Examples include: movies; theater; music; dance; animation; comics; digital games. Although entertainment may seem simple, it can also communicate important cultural, moral, social, or political ideas. II. Functions of Art Across History and Cultures The functions of art change depending on historical and cultural context. Prehistoric Societies Prehistoric art includes cave paintings, carvings, small sculptures, and ritual objects. Possible functions included: communication; ritual practices; storytelling; hunting-related beliefs; spiritual expression; recording community life. For example, cave paintings depicting animals may have been connected to rituals, teaching, or beliefs about hunting. Ancient Civilizations In ancient societies such as Egypt, Greece, Rome, Mesopotamia, India, and China, art often supported religion, government, and social hierarchy. In Ancient Egypt, art was closely connected with religion and beliefs concerning the afterlife. In Ancient Greece, artists emphasized idealized human bodies, proportion, balance, and harmony. Ancient Roman art often celebrated military victories, political leaders, and imperial authority. l Medieval Period European medieval art was strongly influenced by Christianity. Art commonly appeared in: churches; manuscripts; mosaics; sculptures; stained-glass windows. Its primary purpose was often religious education and worship. Renaissance During the Renaissance, artists increasingly studied: anatomy; perspective; nature; mathematics; humanism. Art still performed religious functions, but there was greater emphasis on humanity, individuality, intellectual achievement, and realistic representation. Modern Period Modern artists experimented with new ideas and rejected many traditional artistic rules. Art increasingly became a way to: express individuality; explore emotions; question society; experiment with color and form; challenge artistic conventions. Movements such as Impressionism, Expressionism, Cubism, Surrealism, and Abstract Expressionism introduced radically different approaches to creating art. Contemporary Period Contemporary art may address issues such as: identity; gender; globalization; migration; technology; consumerism; climate change; inequality; politics; human rights. Contemporary artists frequently work with photography, installation, performance, video, digital art, and mixed media in addition to traditional painting and sculpture. III. Major Theories of Art An art theory is a perspective or framework used to understand what makes something art and how an artwork should be interpreted or evaluated. Several theories can be applied to the same artwork. Three major approaches are Formalism, Expressionism, and Social Commentary. 1. Formalism Formalism focuses primarily on the visual or structural qualities of an artwork. Instead of concentrating on the artist's biography or political message, formalists analyze how the artwork is organized. Formal analysis examines the elements of art, including: line; shape; form; color; value; texture; space. It also examines the principles of design, including: balance; contrast; emphasis; movement; pattern; rhythm; proportion; unity; variety. Main Question of Formalism How is the artwork visually constructed? A formalist might ask: What colors dominate the artwork? How are shapes arranged? Is the composition balanced? Where does the viewer's eye move? How do lines create movement? How does texture affect the work? How are contrast and emphasis created? Example When analyzing The Starry Night formally, a student may discuss: swirling curved lines; strong contrast between the bright stars and dark landscape; movement created by the sky; exaggerated color; visual balance between the village and the sky. The analysis concentrates on what is visually present rather than the artist's biography. 2. Expressionism or Expressive Theory Expressive theory views art as a means of communicating the emotions, experiences, imagination, or inner life of the artist. The value of the artwork is often connected to its ability to communicate feelings effectively. Main Question What emotion or personal experience does the artwork communicate? Students might ask: What emotion seems to dominate the artwork? How do colors communicate emotion? How does the artist's brushwork affect the mood? What personal experience may have influenced the artwork? How does the artwork make the viewer feel? Example Edvard Munch's The Scream may be interpreted through expressive theory. The distorted figure, dramatic sky, curving lines, and intense colors may communicate feelings such as: anxiety; fear; isolation; emotional distress. From an expressive perspective, the emotional effect of the artwork is particularly important. 3. Social Commentary Theory Social commentary views art as a way of examining, criticizing, or communicating ideas about society. Artists may address issues such as: injustice; poverty; war; oppression; inequality; discrimination; corruption; environmental problems; political power. Main Question What does the artwork say about society? Other questions include: What social problem does the artist address? Who is represented in the artwork? What social groups or institutions are being criticized? What message does the artwork communicate? Does the artist encourage social change? Example Pablo Picasso's Guernica can be interpreted as a powerful response to the suffering caused by war. The distorted figures, chaotic arrangement, and dramatic imagery communicate destruction and human suffering. Through social commentary, the artwork can be understood as an anti-war statement. IV. Additional Art Theories Although formalism, expressionism, and social commentary are important, students can also understand several additional theories. 4. Representational or Imitational Theory This theory emphasizes an artwork's ability to represent or imitate reality. The idea is historically associated with the concept of mimesis, meaning imitation. Questions include: How accurately does the artwork represent reality? Are the human figures realistic? Are perspective, proportion, and anatomy convincing? Does the artwork resemble its subject? Realistic portraits and landscapes are often analyzed through this approach. However, artistic value does not depend entirely on realism because many important artworks are abstract or highly stylized. 5. Institutional Theory Institutional theory argues that something may become recognized as art partly because it is accepted within the art world. The art world may include: artists; critics; museums; galleries; curators; collectors; art historians. This theory becomes useful when discussing modern and contemporary works that may not resemble traditional art. For example, an ordinary object placed in a museum may lead viewers to question: What makes something an artwork? 6. Functional Theory Functional theories emphasize what art does. An artwork may be valuable because it: teaches; communicates; decorates; inspires; entertains; supports rituals; encourages reflection. Under this perspective, the purpose and effect of the artwork are important. 7. Contextual Theory Contextual approaches emphasize the historical, cultural, religious, political, or economic circumstances surrounding an artwork. Questions include: When was the artwork created? Where was it created? What was happening in society at the time? Who commissioned the artwork? What beliefs influenced the artist? Who was the intended audience? Context can dramatically affect interpretation. V. Comparison of Major Art Theories Theory Primary Focus Central Question Formalism Elements and principles of art How is the artwork visually organized? Expressionism Emotion and personal experience What feelings does the artwork communicate? Social Commentary Social and political meaning What does the artwork say about society? Representational Theory Realistic representation How successfully does the work represent reality? Functional Theory Purpose of the artwork What function does the artwork perform? Contextual Theory Historical and cultural background How does context influence the artwork's meaning? Institutional Theory Recognition by the art world Why is this considered art? The important point is that no single theory must completely explain an artwork. Theories provide different perspectives. For example, one painting can be analyzed formally because of its colors and composition, expressively because of its emotional intensity, and socially because it addresses injustice. VI. Applying Art Theories to Specific Artworks Students can use a simple four-step process: Step 1: Describe Identify exactly what can be observed. Questions: What do you see? What colors are present? What people, objects, or symbols appear? What materials were used? Avoid interpretation at this stage. Step 2: Analyze Examine how the elements of art are organized. Consider: line; color; texture; shape; balance; contrast; emphasis; movement. Step 3: Interpret Determine possible meanings. Ask: What message does the artwork communicate? What emotions does it express? What symbols are present? What cultural or social ideas are represented? Step 4: Evaluate Make a reasoned judgment. Ask: Is the artwork effective? What makes it important? Does it successfully communicate its message? Which art theory best helps explain it? VII. Sample Applications Artwork 1: Vincent van Gogh's The Starry Night Formalist Perspective A formalist may focus on the painting's: curved lines; swirling movement; contrasting colors; strong visual rhythm; exaggerated shapes. The night sky dominates the composition and creates energetic movement. Expressionist Perspective An expressive interpretation may emphasize the intense emotional quality of the painting. The exaggerated sky and dramatic colors may suggest powerful emotions, imagination, or inner experience. Social Commentary Perspective Social commentary is less central to this particular artwork because it does not primarily address a specific political or social problem. This demonstrates an important principle: Not every theory is equally useful for every artwork. Artwork 2: Pablo Picasso's Guernica Formalist Analysis Students may observe: fragmented shapes; distorted figures; dramatic contrasts; crowded composition; strong movement; limited color palette. These formal qualities create tension and disorder. Expressionist Analysis The distorted human and animal figures communicate: fear; suffering; panic; grief. The emotional intensity contributes strongly to the artwork's impact. Social Commentary Analysis This is especially important. The artwork is associated with the destruction and suffering caused by war. It may therefore be interpreted as a powerful criticism of violence and conflict. Thus, Guernica demonstrates how one artwork can be studied using several theories. Artwork 3: Juan Luna's Spoliarium The Spoliarium is particularly important when discussing Philippine art. Formalist Perspective Students can examine: dramatic lighting; contrast; composition; scale; human figures; movement; use of color. The arrangement directs attention toward the fallen figures. Expressionist Perspective The artwork may communicate: tragedy; suffering; exhaustion; loss; human vulnerability. Social and Historical Perspective Because of its historical context and later associations with Philippine nationalism, the work may also invite broader interpretations relating to power, oppression, dignity, and historical experience. VIII. Functions and Theories Are Different Students sometimes confuse functions of art with theories of art. A simple distinction is: Function asks: Why was the artwork created or what does it do? Theory asks: How can we understand, interpret, or evaluate the artwork? For example, a political mural may have the social function of raising awareness. However, we can analyze the same mural using: formalism to examine its colors and composition; expressionism to examine emotion; social commentary to interpret its political message. IX. Relationship Between Artist, Artwork, Audience, and Society Art can be understood through four interconnected components: Artist → Artwork → Audience → Society The artist produces the work. The artwork contains visual forms, symbols, ideas, and materials. The audience interprets the artwork based on personal knowledge and experiences. Society and culture influence both the artist and the audience. Because people come from different backgrounds, the same artwork can produce different interpretations. WEEK 3 1. Broad Chronological Development of Art History Art history charts how humanity expresses beliefs, values, and environments over time through visual mediums: Prehistoric & Ancient Art (c. 40,000 BCE – 400 CE): Begins with cave paintings (e.g., Lascaux) and fertility artifacts, evolving into formal artistic conventions in Ancient Egypt, Greece, and Rome that focused on mythology, idealism, human proportion, and architectural grandeur. Medieval Art (c. 500 – 1400): Dominated by religion in Western art (Byzantine, Romanesque, Gothic), prioritizing spiritual symbolism and devotional function over naturalism. Renaissance & Baroque (c. 1400 – 1750): Marked by a "rebirth" of classical values, perspective, anatomical realism, and humanism (Da Vinci, Michelangelo), transitioning into the dramatic lighting, emotional intensity, and dynamic motion of the Baroque period. Modern Art (c. 1860s – 1970s): Key movements—including Impressionism, Cubism, Surrealism, and Abstract Expressionism—broke away from traditional representation, questioning the very definition and purpose of visual art. Contemporary Art (c. 1970s – Present): Focuses on concepts, diversity, digital mediums, and global issues rather than unified styles, inviting viewer participation and critique. 2. Primary and Secondary Sources in Art History Art historical research relies on evaluating both direct artifacts and academic interpretations: Primary Sources: Direct, firsthand evidence from the time period or artist being studied. The Artwork Itself: The physical object (paintings, sculptures, architecture, textiles) revealing material, medium, brushwork, and condition. Historical Artifacts: Letters, artist diaries, sketchbooks, manifests, contract documents, or contemporary reviews written at the time of creation. Secondary Sources: Analyses, interpretations, or reviews created after the event by non-eyewitnesses. Academic Works: Art history textbooks, peer-reviewed journal articles, biography monographs, and museum exhibition catalogs that analyze primary materials. 3. Art in Its Social, Political, and Economic Contexts Art does not exist in a vacuum; it functions as a mirror and driver of its environment: Social Context: Reflects cultural values, religious doctrines, gender roles, and community identity. For example, medieval stained-glass windows served a educational social function for an illiterate public. Political Context: Serves as propaganda, power projection, or resistance. Rulers throughout history commissioned monumental architecture and portraits to assert legitimacy, while modern artists often use art to protest state policies or social injustices. Economic Context: Driven by patronage, trade, and market systems. The rise of a wealthy merchant class in 17th-century Holland shifted art production away from church altarpieces toward portraits, landscapes, and still lifes bought on an open market. History of Art and Sources of Art In Art Appreciation, the study of the History of Art and Sources of Art helps us understand not only how artworks changed through time, but also why they were created and what they tell us about society. 1. Broad Chronological Development of Art History Art developed alongside human civilization. A simplified chronological view is: Prehistoric Art – cave paintings, carvings, and sculptures created to express beliefs, experiences, and daily life. Ancient Art – Egyptian, Greek, Roman, and other civilizations produced art connected with religion, rulers, mythology, and society. Medieval Art – art was strongly influenced by Christianity and religious institutions. Renaissance Art – renewed interest in classical ideas, humanism, science, and realistic representation. Baroque and Rococo Art – emphasized drama, emotion, movement, decoration, and religious or royal power. Modern Art – artists experimented with new styles, ideas, materials, and ways of representing reality. Contemporary Art – reflects current social issues, technology, culture, identity, politics, and everyday experiences. 2. Primary and Secondary Sources in Art History Primary sources are original materials or direct evidence from the period being studied. Examples include: Original paintings, sculptures, buildings, and photographs Artists' letters, journals, and sketches Historical documents and inscriptions Objects and artifacts Secondary sources are materials created later that analyze, interpret, or discuss primary sources. Examples include: Art history books Scholarly articles Museum catalogs Biographies and documentaries Critical studies of artists and artworks Simple distinction: Primary = direct/original evidence Secondary = interpretation or analysis of evidence 3. Art and Its Social, Political, and Economic Contexts Art does not exist separately from society. The social, political, and economic conditions of a particular period can influence what artists create, what subjects they choose, and how their works are received. Social context – Art can reflect traditions, beliefs, customs, identity, and everyday life. Political context – Art may represent rulers, national identity, political events, or social concerns. Economic context – Wealth, trade, patronage, and access to materials can influence the production and development of art. Key Idea: Art is both a product of its time and a record of human experience. By studying an artwork's history, sources, and context, we can better understand the artwork, the artist, and the society that produced it. WEEK 4 1. The Creative Process in Art The creative process maps the journey from an abstract concept to a finished artwork or craft: Idea / Conceptualization: Sparked by observation, emotion, social issues, or personal experience. The artist or artisan brainstorms, sketches, and researches to refine the core vision. Preparation & Materials Selection: The creator plans the composition and gathers the physical media, tools, and technical equipment required for the project. Execution & Production: The physical transformation phase where skill meets medium. This involves drafting, sculpting, weaving, or painting, often marked by trial, error, and dynamic problem-solving. Refinement & Completion: Final adjustments, detailing, surface finishing, or polishing to ensure the work matches the intended aesthetic and functional standards. Exhibition & Reflection: Presenting the finished product to an audience, allowing viewer feedback, critique, and personal reflection to complete the artistic cycle. 2. Art Mediums, Techniques, and Materials Medium: The primary substance or material used to create an artwork (e.g., oil paint, clay, bronze, digital pixels, watercolor, wood). Technique: The specific manner, method, or technical skill an artist applies to manipulate the medium (e.g., chiaroscuro in painting, coiling in pottery, carving vs. casting in sculpture, cross-hatching in drawing). Materials & Tools: The physical instruments used alongside the medium, such as brushes, chisels, kilns, canvases, palettes, or digital tablets. Artist vs. Artisan: An artist primarily focuses on creating works for aesthetic, emotional, or conceptual expression (fine arts), whereas an artisan is a skilled craftsperson who creates functional or decorative objects (e.g., pottery, woodworking, textiles) using master-level traditional craftsmanship. 3. The Role of the Curator The curator acts as the storyteller, bridge, and custodian between the artwork, the artist, and the public: Selection & Acquisition: Researching, selecting, and collecting artworks or artifacts that align with an exhibition theme or institutional mission. Spatial Design & Presentation: Strategically arranging works in a gallery—considering lighting, sightlines, color schemes, and sequencing—to guide the visitor's physical and emotional experience. Interpretation & Contextualization: Writing wall texts, catalogs, and educational guides that provide historical, cultural, or philosophical context, shaping how the public understands and values the art. Preservation & Stewardship: Ensuring optimal environmental conditions (humidity, lighting, handling) to preserve artworks for future generations. Art and Artisan: Process, Medium, Technique, and Curation In Art Appreciation, understanding how art is made and presented helps us appreciate not only the finished artwork but also the artist's creativity, skills, choices, and purpose. 1. Creative Process in Making Art The creative process refers to the steps an artist goes through in developing an artwork. It may include: Idea or Inspiration – identifying a subject, message, or concept. Planning – deciding the composition, materials, colors, and techniques. Creation – transforming the idea into an actual artwork. Revision – making adjustments or improvements. Finalization – completing and preparing the artwork for presentation. The process may differ from one artist to another. Creativity can involve experimentation, imagination, problem-solving, and personal expression. 2. Art Mediums, Techniques, and Materials Medium refers to the material or form used to create an artwork. Examples include: Medium Examples Painting Oil, acrylic, watercolor Drawing Pencil, charcoal, ink Sculpture Clay, wood, stone, metal Printmaking Woodcut, engraving, lithography Photography Digital or film photography Digital Art Computer-generated images and digital illustrations Technique refers to the method or way an artist uses a medium. For example, a painter may use blending, layering, or brushwork, while a sculptor may use carving, modeling, or casting. The choice of medium, material, and technique affects the appearance, texture, meaning, and overall effect of an artwork. 3. Role of the Curator A curator is a professional who selects, organizes, researches, and presents artworks in a museum, gallery, or exhibition. The curator helps shape how audiences experience and understand art by: Selecting artworks for an exhibition Organizing artworks according to a theme or concept Providing labels, descriptions, and historical information Designing the arrangement and flow of the exhibition Connecting artworks to their cultural and historical contexts Therefore, curation influences how viewers see, interpret, and appreciate artworks. Key Idea Art is more than the finished product. It involves the artist's creative process, the choice of medium and technique, and the curation and presentation of the artwork. Understanding these elements allows us to appreciate both the skill of the artisan and the meaning of the art.

INT335 Unit 2: Empathy, Observation and Problem Identification

Section 4 — NULL and Empty Values

Section 8 Unit 68: New Baby: Express Empathy To Someone

📚 Advanced Vocabulary — Notes 1–20 1. Abundant — plentiful; a lot 2. Accurate — correct; exact 3. Admire — respect someone/something 4. Adverse — harmful; negative 5. Agile — quick and able to move easily 6. Alleviate — reduce; make less serious 7. Ambiguous — unclear; can have different meanings 8. Amiable — friendly and pleasant 9. Ample — enough; more than enough 10. Anecdote — a short story about an event 11. Anticipate — expect something to happen 12. Apparent — obvious; easy to see 13. Apprehend — understand 14. Arduous — very difficult; requiring effort 15. Articulate — express ideas clearly 16. Assert — state something confidently 17. Astute — clever; able to understand things quickly 18. Authentic — real; genuine 19. Avid — very enthusiastic about something 20. Benevolent — kind; wanting to help others 21–40 21. Bliss — great happiness 22. Boast — talk proudly about yourself 23. Bold — brave; confident 24. Brief — short 25. Candid — honest and direct 26. Capable — skilled; able to do something 27. Cautious — careful to avoid danger or mistakes 28. Cease — stop 29. Clarify — make something easier to understand 30. Coherent — logical and easy to understand 31. Compassion — kindness toward someone who is suffering 32. Competent — able; having the necessary skills 33. Comprehend — understand 34. Concise — brief but clear 35. Confident — self-assured; believing in yourself 36. Conquer — defeat; overcome 37. Conscious — aware 38. Consistent — regular; staying the same 39. Constructive — helpful; intended to improve something 40. Contemplate — think deeply about something 41–60 41. Convince — persuade someone to believe/do something 42. Courageous — brave 43. Credible — believable; trustworthy 44. Crucial — extremely important 45. Cultivate — develop or improve 46. Curious — eager to know or learn 47. Dazzling — extremely bright or impressive 48. Decisive — firm; able to make decisions 49. Dedicate — devote time/effort to something 50. Deliberate — careful and intentional 51. Delight — great pleasure or happiness 52. Dense — thick; closely packed 53. Depict — describe or show 54. Deteriorate — become worse 55. Diligent — hardworking and careful 56. Discreet — careful; not attracting attention 57. Distinct — clearly different 58. Diverse — varied; including different types 59. Dynamic — energetic; active 60. Eager — very excited or ready to do something 61–80 61. Eloquent — fluent and persuasive in speaking/writing 62. Elusive — difficult to find, catch, or understand 63. Embark — begin something new 64. Eminent — famous and respected 65. Empathy — understanding another person’s feelings 66. Endure — bear; tolerate something difficult 67. Enhance — improve 68. Enormous — extremely large 69. Enthusiastic — very excited/interested 70. Essential — absolutely necessary 71. Ethical — morally right 72. Evaluate — judge the quality/value of something 73. Evident — clear; obvious 74. Exceptional — unusually good; outstanding 75. Exaggerate — make something seem bigger/more important than it really is 76. Exquisite — extremely beautiful 77. Extensive — large or wide-ranging 78. Fabricate — invent or make up 79. Fascinate — interest someone greatly 80. Feasible — possible; practical 81–100 81. Fierce — strong; aggressive 82. Flourish — grow or develop well 83. Fortunate — lucky 84. Fragile — delicate; easily damaged 85. Frequent — happening often 86. Fundamental — basic; essential 87. Generous — willing to give or share 88. Genuine — real; sincere 89. Glorious — magnificent; wonderful 90. Grateful — thankful 91. Harmonious — peaceful; working well together 92. Hesitate — pause because you are unsure 93. Humble — modest; not thinking you are better than others 94. Ideal — perfect or most suitable 95. Identical — exactly the same 96. Illustrate — explain or show with an example 97. Immense — extremely large 98. Imminent — about to happen 99. Impart — give or communicate information 100. Imply — suggest without saying directly 101–120 101. Impressive — remarkable; causing admiration 102. Incline — tend toward something; be likely to 103. Incredible — amazing; difficult to believe 104. Indicate — show or point out 105. Indifferent — uninterested; not caring 106. Industrious — hardworking 107. Inevitable — unavoidable; certain to happen 108. Influence — affect someone or something 109. Ingenious — clever and creative 110. Innocent — not guilty 111. Inspire — motivate someone 112. Intense — very strong 113. Interpret — explain the meaning of something 114. Intricate — complicated; having many details 115. Intuitive — understood naturally without needing much explanation 116. Irrelevant — not related to the topic 117. Judicious — wise; showing good judgment 118. Keen — eager; very interested 119. Legitimate — lawful; valid 120. Liberal — open-minded; accepting different ideas 🧠 Mini study trick Pour chaque mot, essaie de mémoriser 3 choses : Word → Simple meaning → Example Example: Alleviate → reduce → Medicine can alleviate pain.

INT335 Unit 2: Empathy, Observation and Problem Identification Vocabulary Flashcards

# Glandular Tissue & Lymphatic System ## Chapter 7: Glandular Tissue ### Summary This chapter details the endocrine and exocrine glands of the head and neck, their locations, secretions, functions, innervations, lymphatic drainage, and blood supply. Understanding these glands is crucial for dental professionals to identify disease processes. ### Key Information #### Gland Types - **Exocrine Gland:** Has a duct to empty secretions directly to the site of use (e.g., salivary glands). - **Endocrine Gland:** Ductless, secretes directly into the vascular system (e.g., thyroid gland). - Motor nerves regulate secretion flow; sensory nerves are also present. #### Lacrimal Glands - **Type:** Paired almond-shaped exocrine glands. - **Secretions:** Lacrimal fluid (tears) for lubricating the conjunctiva and eyeball. - **Location:** Lacrimal fossa of the frontal bone, just inside the lateral part of the supraorbital rim. - **Ducts:** Lacrimal ducts collect tears, which then pass to the lacrimal punctum, lacrimal sac, nasolacrimal duct, and finally drain into the inferior nasal meatus. - **Innervation:** Parasympathetic fibers from the greater petrosal nerve (branch of facial nerve), synapsing at the pterygopalatine ganglion. Postganglionic fibers reach the gland via maxillary branches of the trigeminal nerve and lacrimal nerve. - **Lymphatic Drainage:** Superficial parotid lymph nodes. - **Blood Supply:** Lacrimal artery (branch of ophthalmic artery); venous return via superior ophthalmic vein. - **Pathology:** Dry eye syndrome (DES) or keratoconjunctivitis sicca (KCS) due to reduced lacrimal fluid production. #### Salivary Glands - **Function:** Produce saliva to lubricate and cleanse the oral cavity, aid digestion, and contribute to immune defense. - **Control:** Autonomic nervous system. - **Types:** Major (large, encapsulated, named ducts) and Minor (smaller, more numerous, unencapsulated, shorter unnamed ducts). Both are exocrine. ##### Major Salivary Glands 1. **Parotid Salivary Gland** - **Type:** Largest encapsulated major salivary gland. - **Secretions:** Serous type only (25% of total salivary volume). - **Location:** Parotid space, posterior to mandibular ramus, anterior and inferior to each ear, overlying the masseter muscle. - **Duct:** Parotid duct (Stensen duct) opens into the oral cavity opposite the maxillary second molar. - **Innervation:** Efferent (parasympathetic) fibers from the otic ganglion of the glossopharyngeal nerve (ninth cranial nerve) via the lesser petrosal nerve. Postganglionic fibers carried by the auriculotemporal nerve (mandibular division of trigeminal nerve). Facial nerve passes through but does not innervate. - **Lymphatic Drainage:** Deep parotid lymph nodes. - **Blood Supply:** Transverse facial artery (branch of external carotid artery); venous return via retromandibular vein. - **Pathology:** Enlargement and tenderness with mumps (parotitis), most salivary gland cancers involve the parotid. 2. **Submandibular Salivary Gland** - **Type:** Second largest encapsulated major salivary gland. - **Secretions:** Mixed serous and mucous (60-65% of total salivary volume). - **Location:** Submandibular fossa in the submandibular space, inferior and posterior to the body of the mandible. - **Duct:** Submandibular duct (Wharton duct) opens at the sublingual caruncle in the floor of the mouth. - **Innervation:** Efferent (parasympathetic) fibers of the chorda tympani nerve (facial nerve) synapsing in the submandibular ganglion. Postganglionic fibers delivered by the lingual nerve (mandibular division of trigeminal nerve). - **Lymphatic Drainage:** Submandibular lymph nodes. - **Blood Supply:** Glandular branches of the facial artery; venous return mainly by the facial vein. - **Pathology:** Most common site for salivary stones (sialoliths). 3. **Sublingual Salivary Gland** - **Type:** Smallest, most diffuse, and only unencapsulated major salivary gland. - **Secretions:** Mixed, predominately mucous (10% of total salivary volume). - **Location:** Sublingual fossa in the sublingual space at the floor of the mouth, deep to the sublingual fold, anterior to the submandibular gland. - **Ducts:** Ducts of Rivinus (8-20 small ducts) open along the sublingual fold; sometimes form a larger Bartholin duct opening at the sublingual caruncle. - **Innervation:** Same as submandibular gland: efferent (parasympathetic) fibers of the chorda tympani nerve (facial nerve) and submandibular ganglion. Postganglionic fibers delivered by the lingual nerve (mandibular division of trigeminal nerve). - **Lymphatic Drainage:** Submandibular lymph nodes. - **Blood Supply:** Sublingual artery (off lingual artery); parallel venous return. ##### Minor Salivary Glands - **Type:** More numerous than major glands, unencapsulated. - **Secretions:** Mainly mucous, except von Ebner glands (serous only). - **Location:** Scattered throughout oral mucosa (buccal, labial, lingual, soft palate, posterior hard palate, floor of mouth). Von Ebner glands associated with circumvallate lingual papillae. - **Ducts:** Single, short ducts directly into the oral cavity. - **Innervation:** Preganglionic from facial nerve, postganglionic from various branches of the trigeminal nerve. - **Lymphatic Drainage & Blood Supply:** Various nodes and arteries depending on location. - **Pathology:** Mucocele (blockage of duct from trauma). #### Thyroid Gland - **Type:** Largest endocrine gland (ductless). - **Secretions:** Thyroxine (hormone) directly into the vascular system to stimulate metabolic rate. - **Location:** Anterolateral regions of the neck, inferior to the thyroid cartilage, at the junction of the larynx and trachea. - **Innervation:** Sympathetic nerves through cervical ganglia (do not control secretion; pituitary gland regulates hormone release). - **Lymphatic Drainage:** Superior deep cervical lymph nodes. - **Blood Supply:** Superior and inferior thyroid arteries (possibly thyroid ima artery); venous return via superior, middle, and inferior thyroid veins. - **Pathology:** Goiter (enlarged thyroid gland), loss of mobility indicating neoplastic growth. #### Parathyroid Glands - **Type:** Usually four small endocrine glands (ductless). - **Secretions:** Parathyroid hormone directly into the vascular system to regulate calcium and phosphorus levels. - **Location:** Adjacent to or within the thyroid gland on its posterior surface (not visible or palpable). - **Innervation:** Same as thyroid gland: sympathetic nerves through cervical ganglia. - **Lymphatic Drainage:** Superior deep cervical lymph nodes. - **Blood Supply:** Primarily inferior thyroid arteries (possibly anastomotic branch between inferior and superior thyroid arteries); venous return via superior, middle, and inferior thyroid veins. #### Thymus Gland - **Type:** Endocrine gland (ductless) and part of the immune system. - **Function:** T-cell lymphocytes mature here. Grows until puberty, then shrinks (involution). - **Location:** Thorax and anterior region of the base of the neck, inferior to the thyroid gland, superficial and lateral to the trachea, deep to the sternum. - **Innervation:** Branches of the vagus nerve (tenth cranial nerve) and cervical spinal nerves. - **Lymphatic Drainage:** Lymphatic system begins within the gland and terminates in the internal jugular vein (no afferent vessels). - **Blood Supply:** Inferior thyroid and internal thoracic arteries; venous return via veins in the posterior surface directly into brachiocephalic veins. - **Pathology:** Thymic rests (ectopic accessory thymic tissue). ## Chapter 10: Lymphatic System ### Summary This chapter covers the lymphatic system, its components (vessels, nodes, ducts, tonsils), and its role in fighting disease. It details the location, drainage patterns, and clinical significance of lymph nodes and tonsils in the head and neck. ### Key Information #### Lymphatic System Overview - **Components:** Vessels, nodes, ducts, tonsils. - **Function:** Part of the immune system, fights infection and cancer, drains tissue fluid (lymph). - **Lymphatic Vessels:** Parallel venous blood vessels, have one-way valves, drain lymph. - **Lymph Nodes:** Bean-shaped bodies in clusters, filter toxic products from lymph, contain lymphocytes (white blood cells), involved in lymphocyte production. - **Afferent vessels:** Lymph flows into the node. - **Efferent vessel:** Lymph flows out of the node at the hilus. - **Primary node (regional/master node):** First node lymph drains into from a particular region. - **Secondary node (central node):** Node that primary nodes drain into. - **Lymphatic Ducts:** Larger vessels formed by converging lymphatic vessels. - **Right lymphatic duct:** Drains right side of head and neck, right arm, and thorax into the junction of the right subclavian and right internal jugular veins. - **Thoracic duct:** Drains left side of head and neck, left arm, thorax, and entire lower half of the body into the junction of the left subclavian and left internal jugular veins. - **Tonsils:** Masses of lymphoid tissue near airway and food passages, contain lymphocytes, drain into superior deep cervical lymph nodes. #### Lymph Nodes of the Head ##### Superficial Lymph Nodes of the Head - **Occipital Lymph Nodes:** - **Location:** Posterior base of the head (occipital region). - **Drainage:** Scalp in the occipital region. - **Empties into:** Deep cervical nodes. - **Posterior Auricular, Anterior Auricular, and Superficial Parotid Lymph Nodes:** - **Posterior Auricular:** Posterior to each auricle and external acoustic meatus. - **Anterior Auricular:** Immediately anterior to each tragus. - **Superficial Parotid:** Superficial to each parotid salivary gland. - **Drainage:** External ear, lacrimal gland, adjacent scalp and face. - **Empties into:** Deep cervical nodes. - **Facial Lymph Nodes:** - **Location:** Along the facial vein. - **Subgroups:** Malar (infraorbital), Nasolabial (along nasolabial sulcus), Buccal (around labial commissure), Mandibular (superior to mandible, anterior to masseter). - **Drainage:** Skin and mucous membranes where located, drain superior to inferior. - **Empties into:** Deep cervical nodes via submandibular nodes. ##### Deep Lymph Nodes of the Head - Cannot be palpated extraorally. - **Deep Parotid Lymph Nodes:** - **Location:** Deep within the parotid salivary gland. - **Drainage:** Middle ear, auditory tube, parotid salivary gland. - **Empties into:** Deep cervical nodes. - **Retropharyngeal Lymph Nodes:** - **Location:** Near deep parotid nodes, at the level of the atlas. - **Drainage:** Posterior palate, pharynx, paranasal sinuses, nasal cavity. - **Empties into:** Deep cervical nodes. #### Cervical Lymph Nodes - Paired, unilaterally drain tissues (except submental nodes, which drain bilaterally). - Categorized into superficial and deep. - Medical community uses a 7-level classification (Node Levels I-VII). ##### Superficial Cervical Lymph Nodes - **Submental Lymph Nodes (Node Level I, Sublevel a):** - **Location:** Inferior to the chin, within the submental fascial space and submental triangle. - **Drainage:** Lower lip, chin, floor of mouth, apex of tongue, mandibular incisors with periodontium and gingiva. - **Empties into:** Submandibular nodes or directly into deep cervical nodes. - **Clinical Significance:** Risk for spread of cancers from floor of mouth, apex of tongue, mandibular anterior alveolar process, lower lip. - **Submandibular Lymph Nodes (Node Level I, Sublevel b):** - **Location:** Inferior border of the mandibular ramus, superficial to the submandibular salivary gland. - **Drainage:** Cheeks, upper lip, body of tongue, anterior hard palate, most teeth (except mandibular incisors and maxillary third molars), sublingual and submandibular salivary glands. Secondary nodes for submental and facial regions. - **Empties into:** Deep cervical nodes. - **Clinical Significance:** Risk for spread of cancers from oral cavity, anterior nasal cavity, midface structures, submandibular salivary gland. - **External Jugular Lymph Nodes (Superficial Cervical Nodes):** - **Location:** Along the external jugular vein, superficial to the SCM muscle. - **Drainage:** Secondary nodes for occipital, posterior auricular, anterior auricular, and superficial parotid nodes. - **Empties into:** Deep cervical nodes. - **Anterior Jugular Lymph Nodes (Anterior Cervical Nodes):** - **Location:** Along the anterior jugular vein, anterior to larynx, trachea, superficial to SCM muscle. - **Drainage:** Infrahyoid region of the neck. - **Empties into:** Deep cervical nodes. ##### Deep Cervical Lymph Nodes - **Location:** Along the internal jugular vein, deep to the SCM muscle, from skull base to root of neck. - Divided into superior and inferior based on omohyoid muscle crossing internal jugular vein. - **Node Level II (Superior one-third):** - **Location:** From digastric muscle superiorly to hyoid bone/carotid bifurcation inferiorly. - **Drainage:** Oral cavity, nasal cavity, nasopharynx, oropharynx, laryngopharynx, larynx, parotid salivary gland. - **Jugulodigastric lymph node (tonsillar node):** Prominent node in this group, drains palatine tonsils. - **Node Level III (Middle one-third):** - **Location:** From hyoid bone/carotid bifurcation superiorly to cricothyroid notch/cricoid cartilage/omohyoid muscle inferiorly. - **Drainage:** Oral cavity, nasopharynx, oropharynx, laryngopharynx, larynx. - **Node Level IV (Inferior one-third):** - **Location:** From omohyoid muscle superiorly to clavicle inferiorly. - **Drainage:** Laryngopharynx, esophagus, larynx. - **Node Level V (Posterior cervical triangle):** - **Location:** From skull base at posterior SCM border to clavicle. - **Drainage:** Nasopharynx, oropharynx (Sublevel a), thyroid gland (Sublevel b). - **Node Level VI (Anterior compartment):** - **Location:** Inferior to hyoid bone, between medial margins of common carotid arteries. - **Drainage:** Thyroid gland, specific parts of larynx, esophagus. - **Superior Deep Cervical Lymph Nodes:** - **Location:** Deep to SCM muscle, superior to omohyoid muscle crossing internal jugular vein. - **Drainage:** Posterior nasal cavity, posterior hard palate, soft palate, base of tongue (bilateral drainage), maxillary third molars, TMJ, esophagus, trachea, thyroid gland. Secondary nodes for most other head and neck nodes. - **Empties into:** Inferior deep cervical nodes or directly into jugular trunk. - **Inferior Deep Cervical Lymph Nodes:** - **Location:** Deep to SCM muscle, inferior to omohyoid muscle crossing internal jugular vein, extending into supraclavicular fossa. - **Drainage:** Posterior scalp and neck, superficial pectoral region, part of arm. Secondary nodes for superficial head nodes and superior deep cervical nodes. - **Jugulo-omohyoid lymph node:** Drains tongue and submental triangle; enlarged node can indicate tongue carcinoma. - **Empties into:** Jugular trunk (right) or thoracic duct (left). - **Clinical Significance:** Communicates with axillary lymph nodes, high risk for spread of breast cancer. - **Accessory Lymph Nodes:** - **Location:** Along the eleventh cranial (accessory) nerve. - **Drainage:** Scalp and neck regions. - **Empties into:** Supraclavicular nodes. - **Supraclavicular Lymph Nodes:** - **Location:** Superiorly along the clavicle. - **Drainage:** Lateral cervical triangles. - **Empties into:** Jugular trunks or directly into right lymphatic duct/thoracic duct. - **Clinical Significance:** Final endpoint of lymphatic drainage from entire body, high risk for spread of cancers from lungs, esophagus, stomach. #### Tonsils - **Palatine Tonsils:** - **Location:** Oral cavity, between anterior and posterior faucial pillars. - **Lingual Tonsil:** - **Location:** Dorsal surface of the base of the tongue. - **Pharyngeal Tonsil (Adenoids):** - **Location:** Midline of the posterior wall/roof of the nasopharynx. - **Tubal Tonsil:** - **Location:** Nasopharynx, posterior to openings of the auditory tube. - **Drainage:** All tonsils drain into the superior deep cervical lymph nodes, particularly affecting the jugulodigastric lymph node if infected. #### Clinical Considerations with Lymphatic System Pathology - **Lymphadenopathy:** Dramatic increase in size and change in consistency of lymphoid tissue due to infection or cancer. - **Infection:** Nodes are slightly firmer, extremely mobile, and tender. - **Cancer:** Nodes can become bony hard, fixed to surrounding tissue, usually not tender initially (pain is a late finding). - **Lymphadenitis:** Inflammation of a lymph node, common with microbial infections. - **Metastasis:** Spread of cancer from a primary site to a secondary site via lymph. - Involvement of primary nodes offers a better prognosis than secondary nodes or lymphatic ducts. - Head and neck cancers frequently spread to cervical lymph nodes (80% of cases). - Node metastasis is a significant prognostic factor for squamous cell carcinoma survival. ### Learning Objectives Tasks: - Define and pronounce key and anatomic terms. - Locate and identify glands and associated structures on diagrams, skulls, and patients. - Discuss glandular pathology. - Integrate understanding into clinical dental practice. - List and discuss lymphatic system components. - Locate and identify lymph nodes and tonsils on diagrams and patients. - Identify lymphatic drainage patterns for the head and neck. - Describe and discuss pathology of lymphoid tissue. - Compare the relationship of the lymphatic system to the overall function of the immune system.

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Types of Epithial Tissues

INT335 Unit 2: Empathy, Observation and Problem Identification

Chapter 4 Skin and Body Membranes Body Membranes Functions of body membranes Cover body surfaces Line body cavities Form protective sheets around organs Classified according to tissue types Body Membranes Two major categories Epithelial membranes Cutaneous membranes Mucous membranes Serous membranes Connective tissue membranes Synovial membranes Epithelial Membranes Epithelial membranes are simple organs Also called covering and lining membranes These membranes contain both: Epithelial tissue layer Connective tissue layer Epithelial Membranes Cutaneous membrane = skin Dry membrane Outermost protective boundary Consists of two layers Epidermis is composed of keratinized stratified squamous epithelium Dermis is mostly dense (fibrous) connective tissue Epithelial Membranes • Mucous membranes (mucosae) • I Moist membranes Some mucosae secrete protective, lubricating mucus Line all body cavities that open to the exterior body surface • Adapted for absorption or secretion • ' Consists of two layers • Epithelium type depends on site • Loose connective tissue (lamina propria) Epithelial Membranes Serous membranes (serosae) Line compartments in the ventral body cavity that are ciosed to the exterior of the body Occur in pairs, separated by serous fluid, with a visceral and parietal layer Consists of two layers Simple squamous epithelium Areolar connective tissue Epithelial Membranes Specific serous membranes Peritoneum Cover organs in the abdominal cavity Pleurae Surround the lungs Pericardia Surround the heart Connective Tissue Membranes Synovial membranes Loose areolar connective tissue only (no epithelial tissue) Line fibrous capsules surrounding joints Line bursae Line tendon sheaths Secrete a lubricating fluid to cushion organs moving against each other during muscle activity Integumentary System Integumentary system consists of the: Skin (cutaneous membrane) Skin appendages Sweat glands Oil glands Hair Nails Functions of the Integumentary System Insulates and cushion deeper body organs Protects the entire body from: Mechanical damage (bumps and cuts) Chemical damage (acids and bases) Thermal damage (heat or cold) Ultraviolet (UV) radiation (sunlight) Microbes (bacteria) • Water loss Functions of the Integumentary System Regulates heat loss as controlled by the nervous system Acts as a mini-excretory system; sweat aids in the loss of Urea Salts Water Synthesizes vitamin D Secretions create a protective acid mantle Structure of the Skin Two kinds of tissue compose the skin Epidermis Dermis Subcutaneous tissue (hypodermis) Anchors the skin to underlying organs Not technically part of the integumentary system Composed mostly of adipose tissue Serves as a shock absorber and insulates deeper tissues Structure of the Skin Epidermisouter layer Composed of stratified squamous epithelium Most cells are keratinocytes which produce a fibrous protein called keratin Keratinization makes the epidermis tough Desmosomes connect keratinocytes together Avascular Composed of five layers (strata) Structure of the Skin Summary of strata (layers) of the epidermis from deepest to most superficial Stratum basale Stratum spinosum Stratum granulosum Stratum lucidum (thick, hairless skin only) Stratum corneum Structure of the Skin Stratum basale (stratum germinativum) Deepest layer of epidermis Lies next to dermis Wavy borderline with the dermis anchors the two together Cells undergoing mitosis Daughter cells are pushed upward to become the more superficial layers Stratum spinosum Cells become increasingly flatter and more keratinized Structure of the Skin Stratum granulosum Stratum lucidum Formed from dead cells of the deeper strata Occurs only in thick, hairless skin of the palms of hands and soles of feet Stratum corneum Outermost layer of epidermis Shingle-like dead cells are filled with keratin (protective protein prevents wat loss from skin Structure of the Skin Melanin Melanin is a pigment produced by melanocytes Melanocytes are mostly in the stratum basale of the epidermis Color is yellow to brown to black Structure of the Skin Epidermal dendritic cells Alert and activate immune cells to a threat (bacterial or viral invasion) Merkel cells Associated with sensory nerve endings Serve as touch receptors called Merkel discs Structure of the Skin Dermis Connective tissue Underlies the epidermis Two regions Papillary Reticular Structure of the Skin Two regions of the dermis Papillary layer (upper dermal region) contain projections called dermal papillae Areolar connective tissue Indent the epidermis above Many projections contain capillary loops, and others house pain and touch receptors On palm and sole surfaces, papillae increase friction and gripping ability Fingerprints are identifying films of sweat Structure of the Skin Two regions of the dermis Reticular layer (deepest skin layer) Dense irregular connective tissue Blood vessels Sweat and oil glands Deep pressure receptors (lamellar corpuscles) Structure of the Skin Other dermal features Cutaneous sensory receptors Phagocytes Collagen and elastic fibers Blood vessels I Nerve supply Skin Color • Three pigments contribute to skin color 1. Melanin • Yellow, reddish brown, or black pigments 2. Carotene • Orange-yellow pigment (also found in some vegetables) 3. Hemoglobin Red coloring from blood cells in dermal capillaries Oxygen content determines the extent of red coloring Skin Color Redness (erythema) due to embarrassment, inflammation, hypertension, fever, or allergy Pallor (blanching) due to emotional stress (such as fear), anemia, low blood pressure, impaired blood flow to an area Jaundice (yellow cast)-indicates a liver disorder • Bruises (black and blue marks)-hematomas Appendages of the Skin Cutaneous glands are all exocrine glands Sebaceous glands Sweat glands Hair and hair follicles Nails Appendages of the Skin Sebaceous (oil) glands Located all over the skin except for palms and soles Produce sebum (oil) Makes skin soft and moist Prevents hair from becoming brittle Kills bacteria Most have ducts that empty into hair follicles; others open directly onto skin surface Glands are activated at puberty with increased androgens Appendages of the Skin Sweat (sudoriferous) glands Produce sweat Widely distributed in skin Two types of sudoriferous glands Eccrine glands Apocrine glands Appendages of the Skin Eccrine glands More numerous, located all over the body Open via duct to sweat pores on the skin's surface Produce acidic sweat Water, salts, vitamin C, traces of metabolic waste Function in body temperature regulation Appendages of the Skin Apocrine glands Ducts empty into hair follicles in the armpit and genitals Begin to function at puberty Release sweat that also contains fatty acids and proteins (milky or yellowish color) • Play a minimal role in body temperature regulation Appendages of the Skin Hair Located body-wide except for palms, soles, nipples, lips Produced by hair follicle Root is enclosed in the follicle Shaft projects from the surface of the scalp or skin Consists of hard keratinized epithelial cells Melanocytes provide pigment for hair color Hair grows in the matrix of the hair bulb in stratum basale Appendages of the Skin Hair anatomy Central medulla Cortex surrounds medulla Cuticle on outside of cortex Most heavily keratinized region of the hair Melanin provides color Appendages of the Skin Associated hair structures Hair follicle Composed of an inner epithelial root sheath andan outer fibrous sheath Dermal region provides a blood supply to the hair bulb (deepest part of the follicle) Arrector pili muscle connects to the hair follicle to pull hairs upright when we are cold or frightened Appendages of the Skin Nails Heavily keratinized, scalelike modifications of the epidermis Stratum basale extends beneath the nail bed, which is responsible for growth Lack of pigment makes nails colorless Appendages of the Skin Parts of a nail Free edge Body is the visible attached portion Nail folds are skin folds that overlap the edges of the nail; the cuticle is the proximal edge Root of nail is embedded in skin Growth of the nail occurs from nail matrix of nail bed Homeostatic Imbalances of Skin Infections and allergies Athlete's foot Caused by fungal infection (Tinea pedis) Itchy, red peeling skin between the toes Boils (furuncles) and carbuncles Caused by inflammation of hair follicles Carbuncles are clusters of boils caused by bacteria Cold sores (fever blisters) Caused by human herpesvirus 1 Blisters itch and sting Homeostatic Imbalances of Skin Infections and allergies Contact dermatitis Caused by exposure to chemicals that provoke allergic responses Itching, redness, and swelling of the skin Impetigo Caused by bacterial infection Pink, fluid-filled raised lesions around mouth/nose Psoriasis Triggered by trauma, infection, hormonal changes, or stress Red, epidermal lesions covered with dry, silvery scales that itch, burn, Crack, or sometimes bleed Homeostatic Imbalances of Skin • Burns Tissue damage and cell death caused by heat, electricity, UV radiation, or chemicals Associated dangers Protein denaturation and cell death Dehydration and electrolyte imbalance Circulatory shock Result in loss of body fluids and infection from the invasion of bacteria Homeostatic Imbalances of Skin Extent of a burn is estimated using the rule of nines Body is divided into 11 areas for quick estimation Each area represents about 9 percent of total body surface area The area surrounding the genitals (the perineum) represents 1 percent of body surface area Homeostatic Imbalances of Skin . First-degree burn (superficial burn) Only epidermis is damaged Skin is red and swollen Second-degree burn (superficial partial-thickness burn) Epidermis and superficial part of dermis are damaged Skin is red, painful, and blistered Regrowth of the epithelium can occur Homeostatic Imbalances of Skin Third-degree burn (full-thickness burn) Destroys epidermis and dermis; burned area is painless Requires skin grafts, as regeneration is not possible Burned area is blanched (gray-white) or black Fourth-degree burn (full-thickness burn) Extends into deeper tissues (bone, muscle, tendons) Appears dry and leathery Requires surgery and grafting May require amputation Homeostatic Imbalances of Skin Criteria for deeming burns critical (if any one is met): Over 30 percent of body has second-degree burns Over 10 percent of the body has third-or fourth-degree burns Third-or fourth-degree burns of the face, hands, feet, or genitals Burns affect the airways Circumferential (around the body or limb) burns have occurred Homeostatic Imbalances of Skin Skin cancer Most common form of cancer in humans Most important risk factor is overexposure to ultraviolet (V) radiation in sunlight and tanning beds Cancer can be classified two ways Benign means the neoplasm (tumor) has not spread Malignant means the neoplasm has invaded other body areas Concept Link Recall that mitosis gone wild is the basis for cancer (Chapter 3, pp. 82-83). These cells lack normal control of cell division and divide quickly, resulting in errors during DNA replication, mitosis, or both. Cells experiencing rapid, uncontrolled growth become cancerous and can metastasize (spread) to other parts of the body. Homeostatic Imbalances of Skin . First-degree burn (superficial burn) Only epidermis is damaged Skin is red and swollen Second-degree burn (superficial partial-thickness burn) Epidermis and superficial part of dermis are damaged Skin is red, painful, and blistered Regrowth of the epithelium can occur Homeostatic Imbalances of Skin Third-degree burn (full-thickness burn) Destroys epidermis and dermis; burned area is painless Requires skin grafts, as regeneration is not possible Burned area is blanched (gray-white) or black Fourth-degree burn (full-thickness burn) Extends into deeper tissues (bone, muscle, tendons) Appears dry and leathery Requires surgery and grafting May require amputation Homeostatic Imbalances of Skin Criteria for deeming burns critical (if any one is met): Over 30 percent of body has second-degree burns Over 10 percent of the body has third-or fourth-degree burns Third-or fourth-degree burns of the face, hands, feet, or genitals Burns affect the airways Circumferential (around the body or limb) burns have occurred Homeostatic Imbalances of Skin Skin cancer Most common form of cancer in humans Most important risk factor is overexposure to ultraviolet (V) radiation in sunlight and tanning beds Cancer can be classified two ways Benign means the neoplasm (tumor) has not spread Malignant means the neoplasm has invaded other body areas Concept Link Recall that mitosis gone wild is the basis for cancer (Chapter 3, pp. 82-83). These cells lack normal control of cell division and divide quickly, resulting in errors during DNA • One or more of the ABCD characteristics is evolving Developmental Aspects of Skin and Body Membranes Lanugo, a downy hair, covers the body by the fifth or sixth month of fetal development but disappears by birth Vernix caseosa, an oily covering, is apparent at birth Milia, small white spots, are common at birth and disappear by the third week Acne may appear during adolescence Pimples, scales, and dermatitis are more common with aging skin Developmental Aspects of Skin and Body Membranes In youth, skin is thick, resilient, and well hydrated With aging, skin loses elasticity and thins Skin cancer is a major threat to skin exposed to excessive sunlight Balding (alopecia) and/or graying occurs with aging; both are genetically determined other factors that may contribute include drugs and emotional stress

Learn: 3.1 Not Just Empty Words

EXSS Nutrition Ch 5: Gastric Emptying, Digestion, and Absorption

Therapeutic Communication in Assistive Care: Understanding Nonverbal Cues and Practicing Empathy

Art of interviewing In an interview, what factor do we need to consider? Social Economic Cultural How does the provider pick up on subtle ques? Shifts in body language in addition to spoken word Patients will tell you what is wrong with them if you ask the right questions Questions Open Ended OLDCARTS Don't use medical jargon Confrontation Watch for subtle ques "You look upset discussing _____, lets talk about it" Points out something striking about the patient's behavior or statement ○ Directs the patient's attention to something of which they may or may not be aware of ○ You look upset, you sound uncomfortable about that, Is there a reason you look away from me as you speak What does good communication improve? Health outcomes by resolving symptoms and reducing patient's psychogical distress and anxiety 85% of all malpractice lawsuits are based on poor communication skills What should we implement during an interview? ACTIVE LISTENING Watch their body language, tone, eye contact, speech and spoken word Understanding of what is being said, body language and other non verbal ques Symptom SUBJECTIVE ~What the patient feels ~Described by the patient Can be influenced by culture, intelligence and socioeconomic background Constitutional Symptom Fevers, Chills, Weight Gain, Weight Loss Effect all symptoms Sign OBJECTIVE What the observer finds on the assessment Crackles, dry skin, bruising What are the basic interviewing techniques? Questions Silence Facilitation Confrontation Interpretation Reflection Support Transitions Silence Silence is ok, but limit to 2 minutes or less If a patient is silent, you are silent Can restart the conversation with, "What are you thinking about?" Should never be used with the overtalkative patients ○ Can indicate interest and support ○ Don't allow more than 2 minutes of silence ○ Ok to ask: What are you thinking about? You were saying? These things are hard to think about Facilitation Keeps the conversation going "Tell me more about..." Encourages a patient to continue talking without controlling the direction of the conversation ○ Verbal and nonverbal communication that encourages the patient to keep talking ○ Go on, Tell me more, uh huh, And then Interpretation Based on inference "It sounds as if you are afraid...." Based on inference rather than observation ○ The provider interprets the patient's behavior, encouraging the patient to observe their own role in the problem. ○ You seem happy about that, Are you afraid you've done something wrong?, I wonder if your ____ is related to _____ Reflection Repeat part of the statement made by the patient Pt: "I haven't worked since 2016" APRN: "You haven't worked since 2016? Lets talk about that" A response that mirrors what the patient has just expressed ○ Patient: I am nervous about starting a new medication ■ Provider: Nervous about starting a new medication? Support Build a trusting relationship with the patient by using reassurance and empathy Shows an interest in or understanding of a patient ○ I understand ■ Reassurance ● A response that conveys to the patient that the interviewer understands what has been talked about ● That's great you were able to stop smoking, I am glad you came in today - we are going to help you ■ Empathy ● Response that recognizes a patient's feelings and does not criticize ● It's an understand, not an emotional state of sympathy ● I know it is not easy ______, I'm sure ______ has caused you a large amount of anxiety Transitions "Now I am going to ask you questions about..." Used as guides to allow the patient to better understand the logic of the interviewers questions in order to have a good flow to change the topic ○ I am now going to ask you questions about ______, Now let's talk about______ What does a past medical hx all include? General state of overall health Past Illnesses Hospitalizations Surgeries Prior injuries and accidents Allergies Current Medications Diet Sleep Patterns Immunizations Substance Abuse Complementary / Alternative Therapies What is sensitivity? How good a test is at identifying people who truly have the disease True Positive - Positive results are convincing RULE OUT = SnNout Sensitive test + Negative = disease OUT What is specificity How well a test does at correctly identifying people who are well True Negative - negative result is convincing RULE IN = SpPin Specific test + Positive = disease IN What is a functional capacity assessment? Asses geriatric patients abilities to perform activities of daily living (ADLs) -Self Care -Instrumental -Mobility -Timed Get Up and Go test Self Care ADLs Dressing Bathing Transferring from bed to chair Toileting Grooming Feeding oneself Instrumental ADLs Meal Preparation Managing Finances Use the phone Taking Meds Doing Housework Shopping Managing Transport Mobility ADLs Walking from room to room Climbing stairs Walking outdoors What is the timed get up and go test? Rise from chair, walk 10 feet, turn around, walk back to chair, turn and sit down Should be completed in 10 seconds or less If greater than 20 seconds, patient will need further evaluation What is the strongest predictor of future disability and death? Gait What should we be assessing in the elderly in relation to ADLs? # of falls in the last year Gender Identity One's internal sense of gender at a given time How a person feels and identifies themselves in terms of gender such as being a boy, girl or another gender Sexual Orientation The presence and/or object of a person's romantic, sexual, physical or spiritual attractions Who someone is attracted to or has romantic feeing towards ■ Same gender, different gender, more than one gender Alternative Medicine Systems Complete systems of health care that developed separately from Western/conventional medicine i. Traditional Chinese Medicine ii. Traditional Indigenous Healing Practices iii. Homeopathic Medicine Ayurvedic - translates to knowledge of life, origin = India Mind-Body Interventions Techniques that use the mind to help improve physical health and well-being Biofeedback Yoga / Meditation / Deep Breathing Prayer Tai Chi Biologically Based Therapies Natural substances or products from nature to improve health or treat illness Vitamins Herbal Products Probiotics Dietary Supplements Specialty Diets Manipulative and Body Physical movement, pressure, or hands-on techniques to help the body feel better or function better Chiropractic Osteopathy Reflexology / Massage Therapy Energy Therapies Energy fields in or around the body can be influenced to improve health or well-being Biofield therapy ~Intended to affect a patient's energy field for the purpose of healing by having a healer place their hands in or through them; the therapist's healing force restores the patient -Reiki -Therapeutic Touch Bioelectromagnetic based therapies ~Involve the unconventional use of electromagnetic fields. -Positioning external magnetic fields near or around the person, usually by placing magnets on the body, into clothing, or in mattresses Acupuncture -Traditional Chinese medicine in which thin needles are placed into the body to allow qi (energy) to flow unimpeded What is Yin & Yang? 2 opposite yet connected forces that exist in nature and the body They work together to maintain balance and harmony Yin Cooler Darker Quieter Slower Passive Associated with Rest Earth Moon Night Water Femininity Cold Yang Warmer Brighter Active Faster Masculinity Associated with Activity ■ Day, Heat, Light, Movement What is the goal of Yin & Yang? To Remain Healthy: ○ Maintaining a proper balance between yin and yang ○ Neither is considered completely good or bad ○ Both are necessary and work together What is the goal of Chinese Medicine? Not only cure disease, but keep people well Disease means failure in prevention of health care Health is a shared responsibility between the patient and provider Chinese medicine treats the patient as a whole rather than separate systems Preserving health, curing disease of mind, body and spirit The mind can help direct your body's energy toward healing and recovery Disharmony ■ Provides framework to help aid in healing ■ Ex: Patient doesn't catch the flu, develops disharmony. Abx, acupuncture or herbs can help to redevelop harmony What 2 techniques do the Chinese look at to diagnose? Tongue Pulse Assessment Tongue Assessment Believed to be a clear indicator of disharmony Color, Shape, Moisture, Coating, Thickness, Cracks & Texture of the tongue Pulse Assessment Disharmonies of the body have effects on the pulse ● Divided into 3 sections ○ Cun ■ Closest to the wrist ○ Guan ■ Second position ○ Chi ■ 3rd position, furthest from the wrist Left wrist (yin) ■ Heart, liver and kidney Right Wrist (yang) ■ Lungs, spleen and kidney Special Considerations for Peds: Head Palpable Anterior and Posterior Fontanelles Special Considerations for Peds: Eyes Inspecting for red reflex Special Considerations for Peds: Mouth Inspect for oral thrush and geographic tongue Special Considerations for Peds: Genitalia Inspect for hypospadias (males), diaper dermatitis, vaginal yeast Special Considerations for Peds: Hip Dystocia Perform Barlow and Ortolani Maneuvers Assess for normal newborn primitive reflexes Special Considerations for teens Assess Tanner Stages for breast tissue and genitals Can ask parents to step out of the room for the exam to allow you to ask further personal questions. The parents can refuse, although most are happy to step out If the parent does agree, do not continue with further examination until another medical witness is in the room with you Additional questions for teens include social history, illegal drug use, sexuality, suicide/depression screening and safety at home Billing and Coding Current Procedure Terminology (CPT) International Classification of Disease (ICD) Current Procedure Terminology (CPT) -Codes used to document many of the medical procedures performed in a medical office -Services and procedures provided 1. Evaluation and Management 2. Performance and Measurement 3.Emerging Medical Terminology International Classification of Disease (ICD) Explains the reason for the services ○ Classifies diseases and injuries and is used to track mortality and morbidity statistics ○ Assigned to identify the diagnosis, system, condition, problem, complaint or other reason for the encounter Bias An unfair or one sided opinion that can influence how someone thinks or acts Implicit Bias Unconscious attitudes or beliefs about people that can affect how we treat or judge them without realizing it Explicit Bias Conscious and intentional opinions to beliefs about a person or group that can lead to unfair treatment Race Groups of people based on physical traits, national origin and ancestry ■ Skin color, different features Ancestery ○ People, families and backgrounds one comes from ○ Genealogic history, understanding of one's genetic heritage Racial Bias An unfair or one sided opinion/judgement about someone based on their race Racism Treating someone unfairly, badly, negatively because of their race Scientific Racism The false idea that science proves some races are better, smarter or more capable than others Belief of biological evidence of racial inferiority/superiority Example: Black people are biologically different and inferior to white people Dominant Narrative The main or most widely accepted story or viewpoint about a topic, interests or ideas in a dominant social group Spirituality A person's sense of connection to something bigger than themselves, such as nature, a higher power, or their own inner beliefs and values. A person's search for meaning and purpose in life, including how they connect with themselves, others, nature, the present moment, and what they consider meaningful or sacred Religion A set of beliefs, practices, and traditions that help people understand life, spirituality, and their connection to a higher power or something sacred Gender Expression How a person shows or expresses their gender through things like clothing, hairstyle, behavior, voice or appearance What is included with Telehealth? Telemedicine Remote Patient Monitoring Videoconferencing mHealth eConsults Patient education / Coaching Continuing Education for the provider Telemedicine Patient care / Consultation Patient Monitoring Mentoring Digital Imaging What is included in Telehealth Etiquite? Environment Performance Privacy Telehealth - Environment Visual- Provider appearance Room appearance Lighting Picture quality Auditory - Provider noises, background noise, audio quality Telehealth - Performance Provider appearance and communication Use of equipment Provider Preparation Telehealth - Privacy Privacy of sites Equipment privacy settings Consents Mastered (1) You've been getting these terms right! Select this one What is the main purpose of an interview? Gather pertinent information -Patient's illness and how well they are adapting to said illness Goal is to gather important information regarding patient's illness/condition and how they are coping with it Not studied (2) You haven't studied these terms yet! Select these 2 What is included in Chinese medicine? What happens if there is a disharmony between Yin & Yang?

SUICIDE&CO — CLIENT CARE COORDINATOR 10 highest-probability interview questions ⸻ 1. “Tell us a little about yourself and why you’re interested in this role.” Your answer “I currently volunteer as an Independent Community Advocate with Rethink Mental Illness, supporting adults who may be experiencing mental health difficulties and other challenging circumstances. A lot of my work involves being that consistent point of contact for somebody. I speak with clients by phone, text and email, listen to what they need, help them understand information and their options, and liaise with professionals or other services where appropriate. There’s also quite a strong administrative side to what I do. I manage my own casework and follow-ups, maintain advocacy plans and contact records on Hive CRM, and make sure sensitive information is recorded accurately and confidentially. Before that, I worked in welfare support at Goldsmiths, and my security background also taught me how to stay calm and communicate professionally when someone is distressed or a situation becomes challenging. What attracted me to Suicide&Co is that this role brings those different skills together. It’s not just administration and it’s not just client contact. You’re helping somebody through their journey with the service while making sure all the practical things happening behind the scenes are organised properly. I also really connect with the purpose of the charity. Suicide bereavement can be incredibly isolating, and I like the fact that Suicide&Co is trying to make sure people don’t have to navigate that alone.” MEMORY CUE Rethink → clients → casework → calm → Suicide&Co → people + organisation This is probably your most important opening answer. ⸻ 2. “What do you know about Suicide&Co and our services?” This one needs to show that you have actually researched them. Your answer “From my research, Suicide&Co is a national charity specifically supporting people who have been bereaved by suicide. What really stood out to me is the focus on both professional support and opening up conversations around suicide loss, because stigma can make people feel even more isolated. I’ve looked at the different services as well. You provide free one-to-one counselling with qualified counsellors, with up to 12 sessions, and you also have Early Bereavement Support for people within the first six months of their loss, which provides emotional listening and practical signposting. I also noticed how much your language focuses on people being able to grieve in their own way and at their own pace. That matters to me because I don’t think we should assume we know what somebody needs simply because we know what has happened to them. And I’ve understood from the role description that the Client Care team is really central to all of that. You’re often the first person somebody speaks to, but you also stay involved practically through their journey with the service. That’s one of the reasons the role appealed to me. It’s compassionate work, but it also requires organisation, accuracy and reliability.” Suicide&Co currently describes itself as a national charity providing specialist support following suicide bereavement. Its counselling service offers up to 12 free sessions; its Early Bereavement Support covers the first six months and combines emotional listening with practical signposting. MEMORY CUE National → suicide bereavement → conversation → 12 counselling → first 6 months → Client Care ⸻ 3. “What qualities are important when you’re the first point of contact for somebody bereaved by suicide?” They already asked a version of this in your application. Expect it to return in some form. Your answer “For me, the biggest things are empathy, patience, listening properly and reliability. If somebody contacted me following a suicide bereavement, I wouldn’t assume that I understood how they felt. Even two people grieving the same person can experience that loss very differently. I’d give them space to speak and listen to what they’re actually telling me rather than rushing to fill silences or trying to say the perfect thing. I’d also be conscious that I’m representing their first experience of Suicide&Co. So warmth matters, but so does professionalism. If I tell somebody I’ll come back to them, I need to do that. If I don’t know an answer, I’d rather say I’ll check than give them incorrect information. My advocacy work has really taught me that sometimes people don’t need you to take over. They need somebody who is calm, listens properly, explains what’s happening and follows through. I’d want somebody to finish that first conversation feeling that they’d been heard and that they understood what would happen next.” That fits particularly well with Suicide&Co’s own conversation guidance, which emphasises conversation, non-judgemental listening and recognising that suicide-related grief can be difficult to talk about. MEMORY CUE Empathy → don’t assume → listen → warmth + professionalism → next steps ⸻ 4. “Tell us about a time you supported someone who was distressed or finding it difficult to engage.” ⭐ STAR QUESTION Don’t invent a dramatic safeguarding story. Your genuine advocacy experience is enough. S — Situation “In my advocacy work, I’ve supported clients experiencing mental health difficulties who haven’t always found it easy to engage or communicate what they need.” T — Task “My responsibility is to establish communication, understand what the person actually wants from advocacy and support them without putting pressure on them.” A — Action “I start by explaining my role clearly and giving the person space to communicate at their own pace. I use active listening and keep my communication straightforward rather than overwhelming them with lots of information or questions. If they don’t engage immediately, I don’t take that personally. I’ll use the appropriate method of contact, follow up where needed and keep an accurate record on Hive so there’s continuity. I’m also careful about boundaries. I don’t promise an outcome I can’t guarantee and, if something raises a safeguarding concern, I follow the appropriate procedure rather than trying to manage it alone.” R — Result “That approach helps create trust and makes it easier to understand what actually matters to the individual. It’s taught me that consistency is really important. Particularly when somebody has had difficult experiences with services, you can’t demand trust just because you’re there to help. You have to earn it through how you communicate and whether you actually do what you say you’re going to do.” MEMORY CUE Difficult engagement → don’t pressure → listen → follow up → record → trust ⸻ 5. “A client becomes very upset on the phone while discussing their bereavement. What would you do?” This is one of the scenario questions I’d consider very high probability. Your answer “My first response would be to stay calm and give the person space. I wouldn’t panic or immediately try to stop their emotions. I’d listen and acknowledge what they’re telling me without saying that I understand exactly how they feel. I’d also be aware of the limits of my role. As Client Care Coordinator, I wouldn’t try to turn the conversation into counselling. If anything they said made me concerned about their immediate safety or raised a safeguarding concern, I’d follow Suicide&Co’s procedures and seek support from the appropriate manager rather than trying to handle that situation by myself. If there wasn’t an immediate safeguarding issue, I’d establish what they needed from us at that point and explain the next step clearly. Before finishing, I’d make sure they understood what was going to happen next and I’d record any relevant information accurately and sensitively. For me, it’s about being human and compassionate while still maintaining professional boundaries.” MEMORY CUE CALM Calm Acknowledge/listen Limits of role + risk Move to appropriate next step + make record ⸻ 6. “How would you manage several competing priorities at once?” Again, they already assessed this in your application, so be ready for it. Imagine: A distressed client is on the phone, a counsellor needs an urgent response, two clients are waiting to arrange appointments and your manager needs some service data. Your answer “I’d prioritise according to risk, urgency and impact rather than simply doing things in the order they arrived. If I’m already speaking to a distressed client, I’m not going to rush that conversation because an administrative email has appeared. I’d establish whether there was any immediate risk or safeguarding concern and deal with that appropriately first. After that I’d look at what’s genuinely time-sensitive. For example, something preventing a counsellor from supporting a client or an appointment that needs confirming may need attention before routine administration. I use task lists, diary reminders and case records in my current role, and I record actions as I go so information doesn’t get lost when priorities change. I’d also communicate. If several genuinely urgent things happened at once, I wouldn’t quietly struggle and risk making mistakes. I’d speak to my manager or colleagues and agree what needs to come first. Especially in this type of service, being busy isn’t the same as being effective. Accuracy and sensitivity matter.” MEMORY CUE Risk → Urgency → Impact → Record → Communicate ⸻ 7. “Tell us about a time you had to manage sensitive or confidential information.” ⭐ STAR QUESTION S — Situation “In my advocacy role, I regularly handle personal and sensitive information relating to clients’ mental health, circumstances and contact with different services.” T — Task “My responsibility is to make sure that information is handled appropriately while still being able to advocate effectively for the person.” A — Action “I establish what information is relevant and what I’m authorised to share. When liaising with professionals or external services, I’m careful not to disclose information simply because somebody asks for it. I maintain accurate case notes and advocacy records on Hive CRM and keep my recording factual and relevant. I also follow data protection, confidentiality and safeguarding procedures. And if I’m unsure about whether something should be disclosed, I check rather than making an assumption.” R — Result “That means professionals can receive the information they genuinely need while the client’s privacy and trust are protected. It’s made me very conscious that confidentiality isn’t just an administrative requirement. People tell us extremely personal things, and how we handle that information is part of how we earn their trust.” MEMORY CUE Sensitive → permission → relevant → factual record → need-to-know → trust ⸻ 8. “You haven’t used HubSpot before. How would you manage that?” Don’t apologise for this gap. Your answer “I haven’t used HubSpot specifically yet, so I’d be open about that. What I do already have is experience using Hive CRM for client case management. I use it to maintain contact records, advocacy plans, referrals, follow-up actions and outcomes, so I’m already used to the importance of keeping a digital client record accurate and up to date. I also use Microsoft Office, email, online meeting platforms and other digital systems. So the particular software would be new, but the principles behind using it wouldn’t be: accurate information, confidentiality, timely updates and making sure other authorised members of the team can understand what’s happening with a client. I saw that training is provided, and I’d be very comfortable learning HubSpot.” The current advert explicitly says they want confidence with platforms such as HubSpot but that training will be given to the right candidate. MEMORY CUE Not HubSpot yet → Hive → transferable → accurate data → willing to learn ⸻ 9. “Tell us about a time you worked independently while also collaborating with other people.” ⭐ STAR QUESTION S — Situation “In my Independent Community Advocate role, I manage my own casework, but clients may also have healthcare professionals, local services or other organisations involved.” T — Task “My responsibility is to manage my actions independently while making sure communication with other professionals supports what the client actually wants.” A — Action “I keep track of client contact, agreed actions and follow-up dates myself. Where liaison with another professional or service is appropriate, I’m clear about what the client wants me to communicate and what information can be shared. I then contact the relevant service, follow up where necessary and record the action accurately on Hive. I also use supervision and communicate with colleagues when something needs guidance or escalation rather than trying to work outside my role.” R — Result “It allows me to work independently without becoming isolated in my practice. That’s something I’d bring here because I understand this role needs somebody who can take responsibility for their own workload but also work closely with the Client Care Manager, counsellors and the wider team.” MEMORY CUE Own caseload → client wishes → professionals → record → supervision → team ⸻ 10. “Why should we choose you for the Client Care Coordinator role?” This is your closing pitch. Your answer “I think there’s a strong overlap between what you need and what I’m already doing. I’m comfortable communicating with people who may be going through difficult circumstances. I know how to listen without judgement and I don’t assume I know what’s best for somebody. But I’m also organised. I manage casework, follow-ups, confidential records and communication with different professionals, so I understand that good client care depends on what happens behind the scenes as much as the conversation itself. My welfare experience developed that supportive side of me, and my previous security work developed another useful side: remaining calm, professional and able to think clearly when situations become challenging. I also wouldn’t come in believing I know everything about suicide bereavement. It’s a specialist area and I’d want to learn from the training, the Client Care Manager, counsellors and the wider Suicide&Co team. What I would bring from day one is empathy, reliability, good boundaries, organisation and a genuine commitment to treating every person who contacts the service as an individual. I think that’s why this role feels like a natural next step for me.” MEMORY CUE Empathy + organisation + calm + boundaries + learning = me ⸻ 🔥 SCENARIO YOU REALLY NEED TO KNOW I would prepare this even if they don’t ask it exactly this way: “A person calls Suicide&Co. They were bereaved by suicide three months ago and want counselling immediately. What would you do?” A strong answer is: “I’d first listen to them and establish what they’re looking for rather than immediately telling them what they can or can’t access. I’d acknowledge that they’ve taken the step of reaching out and explain the options clearly and sensitively. From my research, I understand that someone can apply for Suicide&Co’s counselling service at any stage, but counselling sessions don’t begin until six months after the bereavement. Because this person is three months bereaved, I’d explain the Early Bereavement Support available during those first six months, which provides emotional listening and practical signposting. I wouldn’t present it as simply turning them away from counselling. I’d help them understand what support is available to them now and what happens with their counselling application. And obviously I’d remain alert to anything in the conversation that raised an immediate safety or safeguarding concern and follow the appropriate procedure.” That is specifically consistent with Suicide&Co’s current policy: applications for counselling can be made at any stage, but sessions don’t begin until six months after the loss; Early Bereavement Support is designed for those first six months. Remember: 3 months = Early Bereavement Support 6+ months = counselling can begin Counselling = up to 12 sessions ⸻ Another possible scenario “A counsellor tells you they urgently need information about a client, but you’re unsure whether you can disclose it. What do you do?” Your structure: Don’t guess → check consent/authority → confidentiality → policy → manager if unsure → only necessary information → record action. Never say: “They’re one of our counsellors, so I’d just send it.” Being part of the organisation does **not automatically mean every piece of client information needs to be shared. ⸻ And another “A client is unhappy with their counsellor and asks you to change them immediately. How would you respond?” “I’d listen first and understand what the concern actually was without becoming defensive or criticising the counsellor. I’d acknowledge the client’s concern and explain what I can do within my role. I wouldn’t promise an immediate outcome before understanding the situation. I’d record the relevant information accurately and follow Suicide&Co’s process, involving the Client Care Manager or appropriate colleague where required. If anything disclosed raised a safeguarding concern, I’d respond according to that procedure. Most importantly, I’d want the client to feel that raising a concern hadn’t damaged their relationship with the service and that what they’d told me was being taken seriously.” Memory: Listen → clarify → don’t blame → don’t promise → manager/process → follow up ⸻ 🧠 KNOW THESE 7 THINGS ABOUT SUICIDE&CO Don’t memorise a corporate speech. Remember these: 1. National suicide-bereavement charity. 2. Launched in 2020. 3. Specialist professional and compassionate support. 4. Up to 12 free counselling sessions. 5. Early Bereavement Support during first six months. 6. Conversation and reducing isolation/stigma are central. 7. Growing charity where Client Care supports clients throughout their journey. Suicide&Co says its impact has grown significantly since its 2020 launch and describes demand as stronger than ever, which also explains why the vacancy stresses adaptability and working in a growing, fast-paced organisation. ⁠Suicide&Co official website ⸻ Your 3 questions for the interviewers Don’t ask all three if they’ve already answered one. Question 1 — strongest “What would excellent performance look like for the person coming into the Client Care Coordinator role in their first three to six months?” Excellent because you’re asking about success, not just benefits. Question 2 — very specific to their growth “I noticed Suicide&Co is growing and developing its services. What are the biggest priorities or challenges for the Client Care team as that demand grows?” That shows you’ve researched them. Their careers page explicitly describes Suicide&Co as a young, growing charity with high demand and continually developing operations. Question 3 — excellent development question “What training and support would I receive around suicide bereavement and the situations that come through the Client Care team?” This acknowledges that you’re bringing transferable experience while respecting that suicide bereavement is specialist work. ⸻ ⭐ Your interview strategy Because this is only 30 minutes, don’t memorise these answers word-for-word. Learn the memory cues. When they ask a competency question: STAR Situation — What was happening? Task — What did I need to do? Action — What did I actually do? Result — What changed/what did I learn? For hypothetical client scenarios: CALM Calm and listen Acknowledge the individual Limits, risk, safeguarding and boundaries Move to the right next step and make an accurate record And there is one sentence I’d like you to keep in your head throughout the interview: “Warm with the person, accurate with the process.” That’s essentially this job. Your CV demonstrates the process side: Hive CRM, casework, follow-ups, confidentiality, safeguarding, professional liaison and organisation. Your advocacy and welfare experience demonstrate the human side: listening, empathy, non-judgemental communication, supporting people in difficult circumstances and helping them navigate services. That combination is the strongest case for you in this interview. And I would not try to imitate somebody who is already an expert in suicide bereavement. Suicide&Co’s own current Client Care profiles include people bringing different combinations of mental-health experience, charity experience and lived/professional experience. What matters is showing that you can bring strong transferable skills while being willing to learn their specialist approach. If you want, I can next turn these exact 10 questions + the scenarios into your Knowt copy-and-paste format, with short flashcard answers, memory cues and a separate one-page interview cheat sheet for 10 September.

Introduction to Limits (EMATH-111)

EMATH 214 Module 1 - Engineering Data Analysis Vocabulary

[Music] [Music] this is the story of the greatest scientific discovery ever the discovery that everything is made of atoms the vast variety and richness of everything we see around us in the world and beyond how it's built up how it all fits together is all down to atoms and the mysterious laws they obey as scientists delve deep into the atom it's the very part of matter they unraveled nature's most shocking secrets they had to abandon everything they believed in and create a whole new science a science that today underpins the whole of physics chemistry biology and maybe even life itself but for me the story of how humanity solved the mystery of the atom is both inspiring and remarkable it's a story of great geniuses of men and women driven by their thirst for knowledge and glory it's a story of false starts and conflicts of ambition and revelation a story that leads us through some of the most exciting and exhilarating ideas ever conceived of by the human race and for a working physicist like me it's the most important story there is [Music] [Music] on the 5th of October 1906 in a hotel room near Trieste a German science is called Ludwig Boltzmann hanged himself Boltzmann had a long history of psychological problems and one of the key factors in his depression was that he'd been vilified even ostracized for believing something that today we take for granted he believed that matter cannot be infinitely divisible into ever smaller pieces instead he argued that ultimately everything is made of basic building blocks atoms it seems incredible now that Boltzmann's revelation was so controversial but a hundred years ago arguing atoms were real was considered by most to be a waste of time although philosophers since the Greeks had speculated that the world might be made out of some kind of basic unit of matter they realized that they were far too small to see even under the most powerful microscopes speculating about them was therefore a complete waste of time but then in the middle of the 19th century whether or not the atom was real was suddenly a question of burning importance the reason was this steam by the 1850s it was changing the world it powered the mighty engines the trains the ships the factories of the Industrial Revolution so figuring out how to use it more effectively became a matter of crucial commercial political and military significance not surprisingly then it became the key question of 1965 [Music] the demand to build more powerful and efficient steam engines in turn created an urgent need to understand and predict the behavior of water and steam at high temperatures and pressures not the alts Minh and his scientific allies showed that if you imagine steam is made of millions of tiny rigid spheres atoms then you can create some powerful mathematical equations and those equations are capable of predicting the behavior esteemed with incredible accuracy but these same equations plunge Boltzmann and his fellow atomists into controversy their enemies argued that since the atoms referred to in their calculations were invisible they were merely a mathematical convenience rather than real physical objects to claim that imaginary entities were real seem presumptuous even blasphemous you see boss most critics argued that it was sacrilegious to reduce God's miraculous creation down to a series of collisions between tiny inanimate spheres Boltzmann was condemned as an irreligious materialist the tragic irony of Boltzmann's story is that when he took his own life in 1906 he was unaware that he'd been vindicated you see a year before he died a young scientist had published a paper which undeniably irrefutable proclaimed the reality of the atom you might have heard of this young scientist his name was Albert Einstein in 1905 the year before Boltzmann suicide Albert Einstein was 26 years old his brash arrogance had upset most of his professors and teachers and he was barely employable then he got his girlfriend pregnant that was followed by a hasty marriage he needed a job any job having not quite distinguished himself a university he took up a job as a patent clerk here in bern in switzerland he'd moved into the small one-bedroom Apartments on cram gasser with his young wife from a laborer despite dire personal straits the young Einstein had a burning ambition he was desperate to make his mark as a physicist and in 1905 during one miraculous year the mark he made was truly incredible having an undemanding job meant that young einstein had plenty of time on his hands both at work and here in his tiny apartment to think deep thoughts in the space of just a few months he was to publish several papers that would change science forever now everyone's heard of his theory of relativity even if they don't understand it and his paper on the nature of light was to win him the Nobel Prize a few years later but ironically it wasn't either of these two papers that had the most impact on the discovery of atoms the one that made all the difference was a short paper on how tiny grains of pollen danced in water almost 80 years earlier in 1827 a Scottish botanist called Robert Brown sprinkled pollen grains in some water and examined it through a microscope what he found was really strange because instead of the pollen grains floating gently in the water they danced around furiously almost as though they were alive now while this so called Brownian motion was strange scientists soon forgot about it they found it mundane even boring I mean who cared if the pollen giggled about in the water and what had the jiggling to do with atoms anyway for nearly 80 years brown's discovery remained a little-known scientific anomaly then Einstein changed everything in one staggering insight I Stein saw that Brownian motion was all about atoms in fact he realized that the jiggling of pollen grains in water could settle the raging debate about the reality of atoms forever his argument was simple the pollen will only jiggle if they were being jostled by something else so I said that the water must be made of tiny atoms like particles which themselves are jiggling and are continually buffeting the pollen if there were no atoms then the pollen would stay still so Boltzmann and his contemporaries had been rowing furiously about this question for nothing the answer was there all along Einstein proved that for Brownian motion to happen atoms must exist Einstein später went way beyond just verbal arguments with flawless mathematics he proved that the dance of the pollen revealed the size of the atom and it's mind-numbing ly tiny 1/10 of a millionth of a millimeter across a single human hair itself one of the narrowest things visible to the naked eye is over a million atoms wide let me put it another way there are more atoms in a single glass of water than there are glasses of water in all the oceans of the world sort of hurts your head just to think about it Einstein's paper ended the debate about whether the atom was real or not and Boltzmann had been totally vindicated the atom had to be real [Music] [Music] by the early years of the 20th century the atom had arrived scientists we'd argued that the atom was real were no longer heretics in a dramatic sudden reversal they became the new orthodoxy but they were to pay a huge price for their success before that even had a chance to congratulate each other on discovering the atom it ripped the rug out from under their feet and sent them spiraling into a bizarre and at times terrifying new world and it all kicked off here in what by 1910 was the world center for atomic physics Manchester two of the most extraordinary men in the history of science worked here in the physics departments of Manchester University between 1911 and 1916 they were Ernest Rutherford and Niels Bohr on the face of it two very different personalities and the unlikeliest of collaborators Rutherford was from a remote part of New Zealand and grew up on a farm Bohr was born in Copenhagen wealthy and erudite virtually an aristocrat Rutherford was the ultimate experimentalist he loved technology and ingenious arrangements of batteries coils magnets and radioactive rocks but he was also blessed with a profound intuition in contrast war was the ultimate theoretician to him science was about deep thought and abstract mathematics pen and paper chalk and blackboard were his tools logic was his path to truth although their approaches to their work couldn't have been any more different they had one thing in common they were prepared to ditch three centuries of scientific convention if it didn't fit what they believed to be true they were genuine revolutionaries Rutherford and Bohr were two of the most extraordinary minds ever produced by the human race but it would take every bit of their dogged tenacity and inspirational brilliance to take on the atom in 1907 ernest rutherford took over the physics departments in manchester this was a period of momentous scientific change just over ten years earlier in germany came the first demonstration of weird rays that see through flesh to reveal our bones these rays were so inexplicable scientists didn't know what to call them so they were named x-rays and a couple of years after that in Cambridge it was shown that powerful electric currents could produce strange streams of tiny glowing charged particles that were called electrons and in 1896 in Paris came the most significant discovery of all one that more than any other would unlock the secrets of the atom the metal uranium was shown to emit a strange and powerful energy that was named radioactivity it seemed straight out of science fiction radioactive metals were warm to touch they could even burn the skin and the rays could pass through solid matter as if it wasn't there it truly was a marvel of the modern age Rutherford was obsessed with radioactivity all sorts of questions plagued him how has it made why did it come in different forms how far could it travel through a vacuum or through air did it alter the materials that are encountered in Manchester together with his assistants hands Geiger of Geiger counter fame and Ernest Marsden he devised a series of experiments that would probe the Enigma of radioactivity 1909 Manchester University these are the props goldleaf Beaton said it's just a few atoms thick a movable phosphorescent screen that flashed when struck by radioactive rays and inside this box is the star attraction a tiny piece of the metal radium radium is an extraordinarily powerful source of a kind of radioactivity the Rutherford had named alpha rays they weren't really rays they were more like a steady stream of particles and radium spat up these particles like a machine gun that never ran out of bullets Rutherford set his students a simple enough task use the radium gun shoot the alpha radioactivity at the gold leaf and with the phosphorescent plate count the number of particles that come out the other side in practice that meant sitting alone in the dark and counting tiny almost invisible flashes on the phosphorescent screen it was deeply tedious but Rutherford insisted that they keep at it weeks passed and the team of researchers found nothing unusual the alpha particles seemed to punch through the gold almost as though it wasn't there very occasionally they would swerve slightly as they went through hardly front-page news now comes what must be the most consequential off-the-cuff remark in the history of science one that changed the world the story goes that Rutherford bumps into his assistant Geiger in the corridor outside the lab Geiger reported that so far they've seen nothing unusual now in response Rutherford could have easily just nodded and walked on but he didn't he later claimed that he said what he said at the time for the sheer hell of it but I don't believe him Rutherford had great scientific intuition and I think he had a hunch that something was about to happen here's what he said to Geiger tell young Marsden to go back and see if he can detect any alpha particles on the same side of the gold leaf as the radium source in other words see if any alpha particles are bouncing back now it's an extraordinary suggestion from Rutherford and one day he had no logical reason to make after all Geiger Marsden had spent weeks seeing alpha particles do nothing but streams straight through the gold leaf almost as though it wasn't there why would any bounce back the Geiger Marsden were young and in all the big New Zealand er they did their master's bidding and went back into their dark lab and watched patiently for days they saw absolutely nothing they strained their eyes to the points of myopia but didn't see a single alpha particle bouncing back off the gold it seemed that rather for suggestion really was a stupid one but then the impossible happened one afternoon in 1909 Geiger burst into Rutherford's office with some astonishing news very very occasionally an alpha particle would indeed ricochet back off the gold leaf Geiger calculated that only 1 in 8,000 alpha particles would do this it's a tiny percentage but Rutherford's mind reeled with the news he would later say it was like firing a shell at a piece of tissue paper and have it bounce back at you there and then Rutherford knew he'd struck physics cold although it would take him over a year to fully understand why the alpha particles would do this when he did he would show humanity for the first time the inside of an atom now people had barely got used to the idea that atoms existed but now Rutherford knew that this my new world 1/10 of a millionth of a millimetre across had his own internal structure within the atomic there's a sub atomic world and Ernest Rutherford believed he knew what it looked like Rutherford realized that the bouncing alpha particle revealed an atom that was totally unexpected it had no familiar analogy on earth so Rutherford looked for one in the heavens he pictured the atom as a tiny solar system electrons tiny particles of negative electricity orbit around a minut positively charged object called the nucleus [Music] Rutherford calculated that the nucleus was 10,000 times smaller than the atom itself that's why only 1 in 8,000 alpha particles bounce back they're the ones that hit the Tony nucleus by chance the rest whizzed by without hitting anything the first astonishing consequence of this idea is that Rutherford's atom is almost entirely empty space that's why nearly all the alpha particles race through the gold atoms as if there's nothing there there really is nothing there consider the bizarre implications of Rutherford's atom by imagining it on a bigger scale if the nucleus were the size of a football then the nearest electron will be an orbit half a mile away the rest of the atom will be completely empty space let me explain another way if you were to suck out all the empty space from every atom in my body then I would shrink down to a size smaller than a grain of salt of course I'd still weigh the same and if you did the same thing to the entire human race then all 6 billion of us would fit inside a single Apple the atom was unlike anything we had ever encountered before and it would only get stranger and stranger almost immediately a problem surfaced and it was a big one according to the tried and trusted science of the time the electrons should lose their energy run out of speed and spiral into the nucleus in less than a blink of an eye Rutherford's atom contradicted the known laws of science the atom didn't care that it defied scientific convention it's almost entirely empty space and it's gonna stay that way I show no signs of shrinking down to the size of a grain of salt and the earth is well the size of the earth it's not getting smaller not surprisingly all the established scientists of the day including Einstein were battled scientific ideas they put their faith in all their lives had failed completely to explain the atom the atom now required a new generation of scientists to follow in Rutherford's footsteps bold brilliant and above all young it was crucial they had no loyalty or attachment to ideas held by previous generations one of the first of this new breed was niels bohr he sailed from Denmark in 1911 and made his way it's English soil having finished his studies in Copenhagen war decided to move abroad and be at the center of the new physics the trail led you to britain manchester university ernest rutherford or made it his mission to solve the puzzles of why the atom didn't collapse and why there was so much empty space as one of the new breed of theoretical physicists he was fearless in his thinking and was prepared to abandon common sense and human intuition to find an explanation so in a leap of genius he started to look for clues about the atoms structure not by looking at matter but by examining the mysterious and wonderful nature of light our atoms and lights are clearly connected most substances glow when they're heated and for centuries people had realized that different substances glow with their own distinctive colors a bit like a signature so the green of copper the yellow of sodium and the red of lithium these colors associated with different substances are called spectra and Bohr's great insights was to realize that spectra are telling us something about the inner structure of the atom that they could explain all that empty space Bohr's idea was to take Rutherford's solar system model of the atom and replace it with something that's almost impossible to imagine or visualize so sensible ideas like empty space and particles moving around in orbits fade away and they're replaced with something that is one of the most misunderstood and misused concepts in the whole of science the quantum jump now it takes most working physicists many years to come to terms with quantum jumps and in fact or himself said that if you think you've understood it then you haven't really thought about it enough so I'm going to take a deep breath and under 30 seconds try and explain to you one of the most complicated concepts in the whole of science but one that underpins the entire universe Bohr described the atom not as a solar system but as a multi-story building the ground floors where the nucleus lives were the electrons occupying the floors above mysterious laws mean the electrons can only live on the floors never in between and other mysterious laws mean that sometimes that can instantaneously jump from one film to another these are what we call quantum jumps now Bohr had absolutely no idea what these laws were but thinking like this allowed him to make a startling prediction when an electron jumps from a higher floor to a lower one it gives off light more significantly the color of the light depends on how big or small the quantum jump the electron makes so an electron jumping from the third floor to the second floor might give off red light when an electron jumping from the tenth floor to the second floor blue light to test his new theory Bohr used it to make a prediction could it explain the mysterious signature in the spectrum of hydrogen after months of calculating furiously who finally came up with the results and his prediction was surprisingly accurate for the first time ever it looked like the spectrum can be explained back in 1913 that was big news but Bohr's new idea rested on a single seriously controversial supposition why should the electrons in the atom behave as though they were in a multi-story building and why should they magically perform quantum jumps from one story to another there was no precedent for it anywhere else in science when one physicists claimed the jumps were nonsense Moore replied yes you're completely right but that doesn't prove the jumps don't happen only that you cannot visualize them but not being able to visualize things seem to go against the whole purpose of science all the scientists in particular felt that science was supposed to be about understanding the world not about making up arbitrary rules that seemed to fit the data conflict between the two generations of scientists was inevitable cause weird new Adam and his crazy quantum jumps were a shot across the bow silence and the old school reacted and leading the traditionalists was giant of the physics world Albert Einstein he hated all his ideas and he was going to fight them anything from a sexual assault on Nats [Music] borther is undeterred and as the 1920s gone the battery needs for one of the greatest conflicts in all science Woodlawn so far the debates about the new atomic physics had been polite from gentlemen now the two sides wheeled out their biggest guns two of the greatest names in physics they were two very true trusting characters on those dicho for the new revolutionary science was a buttoned-up uber competitive German called Verner Heisenberg for the Conservatives as a debonair byron esque Austrian called Owen Schrodinger [Music] [Applause] Oh in Schrodinger passionate and poetic a philosopher and a romantic he wrote books on the ancient Greeks on philosophy on religion he was influenced by Hinduism there's also a very flamboyant character cool suave sophisticated a dapper dresser and a big hit with the ladies [Music] [Applause] schrödinger's promiscuity was legendary he had a string of girlfriends throughout his married life some of them much younger than him in 1925 38 year-old Schrodinger stayed at the Alpine resort of yoson Switzerland for a secret liaison with an old girlfriend whose identity remains a mystery to this day but their passion proved to be the catalyst but Schrodinger's creative genius another physicist said of Schrodinger's week of sexually inspired physics he had two tasks that week satisfy a woman and solved the riddle of the atom fortunately he was up to both he took de Bru's idea of mysterious pilot waves guiding electrons around an atom one crucial step further he argued that the electron actually was a wave of energy vibrating so fast it looked like a cloud around the atom a cloud like wave of pure energy and what's more he came up with a powerful new equation which completely described this way and so described the whole atom in terms of traditional physics the equation he came up with we now call schrödinger's wave equation it's incredibly powerful what's unique about it is that it features a new quantity called the wave function which Schrodinger claimed completely describe the behavior on the subatomic world [Music] Schrodinger's equation and the picture of the Atome painted created during a sexually charged holiday in the Swiss Alps once again allowed scientists to visualize the atom in simple terms it's hard to overestimate the relief Schrodinger's idea brought to the traditional physics community strange though his picture of the Aten was at least it was a picture and scientists love pictures they allowed them to use their intuition but there was still a deep nagging problem one that the radicals felt Schrodinger just couldn't reconcile his new theory still couldn't account for balls strange instantaneous quantum jumps the time had come for the radicals to hit back [Applause] in the summer of the same year one of Niels Bohr's protegees Verner Heisenberg was travelling to an obscure island of the north coast of Germany he was fiercely competitive and took Schrodinger's ideas as a personal affront he felt strongly that the strangeness of the instant quantum jumps was actually the key to understanding the atom he thought the atom was so unique and unusual it shouldn't be compromised through a simple analogy like a wave or an orbit or even a multi-story building he believed it was time to give up any picture of the atom at all Verner Heisenberg while the true geniuses of the 20th century young athletic a great mountain climber an excellent pianist he was also an exceptional student at the age of just 20 who was well on his way to finishing his ph.d and being courted by the great universities across Europe now in the summer of 1925 he was suffering from a particularly bad bout of hay fever his face was swollen up almost beyond recognition he decided to escape alone here to this beautiful but isolated island of helgeland he walked along the beaches he swam he climbed the rock and he pondered ever since he'd encountered atomic physics Heisenberg felt in his bones that all human attempts to visualize the atom to model it with familiar images would always fail the atom he believed was too capricious too strange to ever be explained that simply so he decided to abandon all pictures of it and describe it using pure mathematics alone but as he pondered he realized that the atom didn't just defy visualization it even defied traditional mathematics it was while he was here on helgeland the Heisenberg had an incredible revelation he realized that in order to describe certain properties of atoms he had to use a strange new type of mathematics it seems that certain properties like where an electron is at a given time and how fast it's moving where multiplied together the order in which you multiply there matters let me try and explain if we multiply two numbers together it doesn't matter which or do we do it in so 3 times 4 is clearly the same as 4 times 3 but when it came to atoms Heisenberg realized that the order in which he multiplied quantities together gave a different answer this quickly led him to other discoveries and he was convinced that he'd cracked a code in the atom that he'd somehow found the hidden mathematics within he was so excited he was also very scared that night he climbed to the top of a rock and sat there waiting till dawn he called it his night of helgeland when he returned to his University in getting and he told his colleague Max Born about it and they then worked together intensely for several months developing a whole new theory of the atom a theory that today we call matrix mechanics [Music] matrix mechanics uses complex arrays of numbers rather like a spreadsheet by manipulating these arrays Heisenberg and his mentor the brilliant physicist max all could accurately predict atomic behavior but from Einstein and the traditionalists this was pure scientific heresy an atom can't actually be a matrix of numbers surely we made of atoms not numbers back in Copenhagen Bohr and Paulie were thrilled with matrix mechanics so what if we couldn't imagine the atom as a physical object they exalted in the purity of the mathematics and launched into vicious attacks against Schrodinger's vulgar sensual waves Heisenberg wrote the more I reflect on the physical portion of Schrodinger's equation the more disgusting I find it in fact it's just [ __ ] but Schrodinger was equally scathing of Heisenberg saying he was repelled by his methods and found his mathematics monstrous in Munich in 1926 their enmity began to reach boiling points Schrodinger was to give a lecture on his wave equation Heisenberg scraped together the money to travel down to Munich for the lecture to finally come face to face with his rival what was at stake was more than just Heisenberg's reputation he believed Schrodinger's simplistic approach wasn't just misguided but totally wrong and his intention was nothing less than to destroy Schrodinger's theory Schrodinger delivers his lecture on the new wave mechanics to a packed audience the standing-room-only he writes down his new wave equation to Schrodinger this describes a real physical picture of the atom with electrons as waves surrounding the atomic nucleus 24-year old Verna Heisenberg is in the audience it can hardly contain himself at the end of the lecture he stands up and delivers a monologue attacking Schrodinger's approach for Heisenberg it's impossible to ever have a picture of what the atom is really like the audience is on Schrodinger side they'd much prefer his simple physical interpretation to Heisenberg's abstract complicated mathematics Heisenberg is booed he's told to sit down and be quiet he leaves the lecture sad and depressed Heisenberg returned to Copenhagen with his confidence severely dented there at the Institute he and Bohr reached their darkest moment almost all of the scientific community was against them they felt isolated desperate their backs were against the wall despite this they stubbornly refused to give up their controversial theory this attic room was Heisenberg study back in 1926 Bohr would come up here night after night we're here in Heisenberg would argue about the meaning of the new quantum mechanics they would argue so passionately but on one occasion apparently Heisenberg was reduced to tears and then as Heisenberg stared out of his attic window in despair the part below an extraordinary thought occurred to him it struck him why an atom can't be visualized why can't be understood intuitively it's not just because it's tiny tricky and difficult is because it's inherently unknowable he realized that there was a fundamental limit to how much we can know about the subatomic world for instance if we know where an electron is at a particular moment in time then we cannot know how fast it's moving but if we knew its speed we wouldn't know his position this ambiguity isn't a shortcoming in the theory itself nor was it due to the clumsiness of the way we carry out our measurements but a fundamental truth about the way nature behaves at the subatomic scale it became known as Heisenberg's uncertainty principle and is probably the most profound incredible yet unsettling concepts in the whole of science [Music] what Heisenberg had uncovered through his abstract matrix mechanics was a deep and shocking truth about the atomic world atoms are willfully obscure we can never fully know an atoms position and speed simultaneously the atomic world just refuses to allow that to happen it was completely mind-boggling but once they accepted it Heisenberg and Bohr who found the boost of confidence to be even more bold they realized uncertainty forced them to put a paradox right at the very heart of the atom atoms are not just unimaginable they're self-contradictory they behave both like particles and waves and it gets weirder when you're not looking at an atom it behaved like a spread-out wave but when you look to see where it is it behaves like a particle this is insane first atoms couldn't be visualized at all now it seems they change completely in character depending on whether or not you're looking at them the uncertainty principle had changed everything it revealed a shocking contradiction at the heart of nature everything we see is made of atoms and yet atoms themselves are unknowable they can only be understood through mathematics for the first time for Bohr and Heisenberg everything about the atom fell into place by the autumn of 1927 full of confidence and smarting for a fight they knew they were finally ready to take on the Conservatives [Music] for this physics showdown they chose the Solvay conference in Brussels all the world's leading atomic physicists would attend if war and Heisenberg was successful then they would lead a total scientific revolution this is amazing I'm looking at original footage of the Solvay delegates coming out of these doors there's Bohr talking to Schrodinger and and this Heisenberg behind them and there's Paolo Li strange looking guy on there's Einstein coming down with a big smile on his face for the week of the conference all that the delegates could think and talk about was Bohr's quantum mechanics with uncertainty now a central plank it was a truly formidable theory and over the week the final showdown played out between Bohr and his archrival Albert Einstein Einstein hated quantum mechanics and every morning he'd come to war with an argument that he felt picked a hole in the new theory war would go away very disturbed and think very hard about it and by the end of the day he'd come back with a counter argument that dismissed Einstein's criticism and this happened day after day until by the end of the conference Bohr had brushed aside all of Einstein's criticisms and Bohr was regarded as having been victorious and with that his vision play-actor which became known as the Copenhagen interpretation was suddenly at the very heart of atomic physics at the end of the conference they all gather for the team photo never before or since have so many great names of physics being together in one place at the front the elder statesmen of physics Hendrik Lorentz flanked on either side by Madame Curie and Albert Einstein Einsteins looking rather glum because he's lost the argument Louis debris has also failed to convince the delegates of his views victory goes to Niels Bohr he's feeling very pleased with himself next to him one of the unsung heroes of quantum mechanics the German Max Born who developed so much of the mathematics and behind them the two young disciples of Bohr Heisenberg and Pauli Poly's looking rather smugly across at Schrodinger bit like the cat who's got the milk this was the moment in physics when it all changed the old guard was replaced by the new chance of probability became interwoven into the fabric of nature itself and we could no longer describe atoms in terms of simple pictures but only using pure abstract mathematics the Copenhagen view had been victorious although Einstein went to his grave never believed in quantum mechanics solve a 1927 was the turning point at which the rest of the science establishments came to embrace the Copenhagen interpretation and that interpretation is still accepted today all the physics that I use in my research certainly the quantum mechanics that I teach my students and that fills the textbooks on my shelves is based on ideas that were hammered out and crystallized here at the Solvay conference in October 1927 in a sense everything I know about the way the world around me is made up started here the quantum mechanical description of the atom is one of the crowning glories of human creativity over the last of 18 years it has been proven right time after time and it's Authority has never been in doubt it's a monumental scientific achievement between 1905 and 1927 science changed our view of the world it also changed our view of science itself as scientists probed the tiniest building blocks of matter they created the most successful and powerful theory ever quantum mechanics it allows us to describe what everything in the universe is made of how it interacts and how it all fits together but it comes at a huge price at its most fundamental level we have to accept that nature is ruled by chance and probability Heisenberg's uncertainty principle dictates that there are certain limits on the sorts of questions we can ask the atomic world and most crucially while we now know so much more about what an atom is and how it behaves we have to give up any possibility of imagining what it looks like our human nature has forced us to ask questions of everything we see around us in the world what we've discovered has been beyond our wildest imagination [Music]

Tarjetas de Vocabulario: Empatía y Simpatía