Phénomènes Ondulatoires : Diffraction et Interférences

Reflection, Refraction, Diffraction Practice

HALACHA Q: What is Halacha? A: The Jewish path for living. Q: Why is Halacha compared to a path? A: It guides a person through life. Q: Why are actions important in Judaism? A: Actions shape character. Q: What is the difference between believing something and living it? A: Living it means putting beliefs into action. Q: Why did rabbis make d’Rabbanan laws? A: To protect Torah laws and help prevent mistakes. Q: What helps Judaism answer new situations? A: The Oral Torah. Q: What is Torah Shebichtav? A: The Written Torah. Q: What is Torah Sheba’al Peh? A: The Oral Torah. Q: What is a D’Oraita law? A: A Torah law. Q: What is a D’Rabbanan law? A: A rabbinic law. Q: What is a Gezeirah? A: A fence around the Torah to prevent mistakes. Q: What is a Minhag? A: A Jewish custom. ⸻ FREEDOM & PESACH Q: What does Pesach celebrate? A: Leaving Egypt. Q: What is true freedom? A: Choosing what is meaningful and right. Q: What is Mitzrayim? A: Anything that traps a person. Q: Give a modern example of Mitzrayim. A: Peer pressure, insecurity, or bad habits. Q: Can someone be physically free but spiritually trapped? A: Yes. Q: How? A: By being controlled by desires or bad habits. Q: Who demonstrates true freedom? A: Someone who can control themselves when tempted. Q: What should freedom lead to? A: Responsibility and growth. Q: What connects Pesach and Sefirat HaOmer? A: Freedom is followed by preparation and growth. ⸻ MATZAH & HUMILITY Q: What does matzah symbolize? A: Humility. Q: Why is matzah called the bread of humility? A: It reminds us not to become consumed by ego. Q: What does chametz symbolize? A: Pride and ego. Q: Why is humility important? A: It helps a person grow. Q: Why is humility necessary for growth? A: You must recognize areas that need improvement. ⸻ MODEH ANI Q: What is Modeh Ani? A: A prayer of gratitude said when waking up. Q: Why do Jews say Modeh Ani first thing in the morning? A: To start the day with gratitude. Q: What does Modeh Ani teach? A: Every day is a gift. Q: What does “Rabbah Emunatecha” mean? A: Hashem believes in our potential. Q: Why begin the day with gratitude? A: Gratitude shapes perspective before distractions begin. Q: What danger exists in saying Modeh Ani without thinking? A: Turning a meaningful routine into a habit. ⸻ SEFIRAT HAOMER Q: What is Sefirat HaOmer? A: Counting the days between Pesach and Shavuot. Q: Why do we count the Omer? A: To prepare for receiving the Torah. Q: What is the message of the Omer? A: Growth happens gradually. Q: What does counting every day teach? A: Small improvements matter. Q: What lesson does the Omer teach about growth? A: Growth requires consistency and effort. Q: What should someone remember if they want instant results? A: Growth is a process. Q: Which student demonstrates the message of the Omer? A: “Small improvements every day matter.” Q: Why did Bnei Yisrael count the Omer? A: To prepare spiritually for the Torah. ⸻ PREPARATION Q: What is preparation? A: Getting ready for something important. Q: Why is preparation important? A: Important goals require effort and growth. Q: What did the Jews prepare for during the Omer? A: Receiving the Torah. ⸻ TEFILLAH Q: What is tefillah? A: Prayer. Q: Why is regular prayer important? A: Relationships need regular communication. Q: What happens if someone only prays when they need something? A: They miss the relationship aspect of prayer. ⸻ SHACHARIT, MINCHA, MA’ARIV Q: What is Shacharit? A: Morning prayer. Q: What does Shacharit teach? A: Begin the day with Hashem. Q: What is Mincha? A: Afternoon prayer. Q: Why is Mincha difficult? A: It happens during a busy time. Q: What does Mincha teach? A: Pause and reconnect with Hashem. Q: What is Ma’ariv? A: Evening prayer. Q: What does Ma’ariv teach? A: Trust in Hashem. ⸻ KAVANA Q: What is Kavana? A: Focus and meaning in prayer. Q: Why is Kavana important? A: It makes prayer meaningful. Q: Who demonstrates Kavana? A: Someone who focuses on the meaning of a bracha. Q: What improves tefillah most? A: Understanding what you’re saying. Q: What should someone do if their mind wanders? A: Refocus and keep trying. Q: What happens when prayer is rushed? A: It becomes robotic. ⸻ AMIDAH Q: What is the Amidah? A: The central prayer of davening. Q: What are the three parts of the Amidah? A: Praise, requests, gratitude. Q: Why does praise come first? A: To build a relationship with Hashem. Q: Why does the Amidah end with gratitude? A: Appreciation is essential in relationships. Q: What do three steps forward symbolize? A: Coming closer to Hashem. Q: Why step backward afterward? A: To leave respectfully. ⸻ MINYAN Q: What is a minyan? A: Ten Jews praying together. Q: Why is a minyan important? A: It creates unity and shared responsibility. Q: Does a minyan guarantee prayers are answered? A: No. Q: What is the danger of focusing only on communal prayer? A: Ignoring personal connection with Hashem. ⸻ SIX CONSTANT MITZVOT Q: Why are they called constant? A: They apply all day. Q: What is the first Constant Mitzvah? A: Believe in Hashem. Q: Second? A: Don’t believe in other gods. Q: Third? A: Hashem is One. Q: Fourth? A: Love Hashem. Q: Fifth? A: Fear/Awe Hashem. Q: Sixth? A: Don’t follow harmful desires. Q: What unit teaches awareness of Hashem all day? A: Six Constant Mitzvot. Q: What action demonstrates a Constant Mitzvah? A: Thinking about Hashem before making a difficult decision. ⸻ BEIN ADAM LAMAKOM Q: What does Bein Adam LaMakom mean? A: Relationship between a person and Hashem. Q: What best summarizes Bein Adam LaMakom? A: Building an ongoing relationship with Hashem. Q: Should spirituality be separated from daily life? A: No

Required practical 2 - Diffraction grating

The Jabberwocky * A nonsense poem by Lewis Carroll. * A young hero is warned about the dangerous Jabberwock. * He goes on a quest and kills the monster. * Theme: bravery and heroism. * Important: The poem uses many made-up words, but readers can still understand the story through context. ⸻ The Curious Incident of the Dog in the Night-Time * Christopher Boone investigates the death of a neighbor’s dog. * He discovers family secrets, including that his mother is alive. * Christopher struggles with social situations and change. * Theme: * Truth vs. lies * Independence * Family relationships * Narrator: * Usually reliable because he tells facts. * Sometimes unreliable because he misunderstands emotions and social situations. ⸻ All Gold Canyon * A prospector discovers gold in an untouched canyon. * He carefully mines it. * Another man tries to steal it and shoots him. * The prospector survives and defeats the thief. * Themes: * Hard work * Greed * Nature’s beauty ⸻ The Thousand Dozen * David Rasmunsen transports 1,000 dozen eggs hoping to make a fortune. * Faces harsh weather and obstacles. * Egg prices drop before he can profit. * Themes: * Ambition * Greed * Risk ⸻ To Build a Fire * A man travels alone in freezing weather. * Ignores warnings from experienced people. * Cannot start a fire and dies. * Theme: * Man vs. Nature * Lesson: * Nature is stronger than humans. ⸻ The Tell-Tale Heart * Narrator murders an old man. * Hides the body. * Imagines hearing the dead man’s heartbeat. * Confesses. * Theme: * Guilt * Madness * Narrator is unreliable. ⸻ The Raven * A man mourns Lenore. * A raven repeatedly says “Nevermore.” * He becomes increasingly emotional. * Themes: * Grief * Loss * Madness ⸻ The Veldt * Parents give children a virtual-reality nursery. * Children become obsessed with it. * Technology replaces family relationships. * Theme: * Man vs. Technology ⸻ Fahrenheit 451 Plot * Guy Montag burns books. * Meets Clarisse, who makes him question society. * Begins reading books. * Escapes after turning against the government. Themes Distraction vs. Happiness People are constantly entertained but not truly happy. Mass Media Television controls people’s thinking. Knowledge vs. Ignorance Books contain knowledge; society wants ignorance. Conformity vs. Individuality People are expected to think the same. Action vs. Inaction Montag changes because he acts instead of remaining passive. ⸻ Maus Plot Art Spiegelman tells his father Vladek’s Holocaust story. Characters * Vladek = survivor * Artie = son Themes * Trauma * Survival * Family conflict ⸻ Death of a Salesman Plot Willy Loman believes success comes from popularity. His dreams fall apart. He dies hoping insurance money will help his family. Themes * American Dream * Reality vs. illusion * Family expectations ⸻ A Midsummer Night’s Dream Plot Lovers run into a forest. Fairies use magic. Everyone falls in love with the wrong person. Magic is fixed. Multiple marriages occur. Themes * Love * Appearance vs. reality * Imagination ⸻ POETRY TERMS Haiku * 3 lines * 5 syllables * 7 syllables * 5 syllables Example: Summer sunlight shines Waves crash softly on the shoreline Warm sand hugs my feet ⸻ Concrete Poem A poem shaped like its subject. ⸻ What is a Meme? A piece of media shared online that spreads an idea, joke, or trend. ⸻ Phone Manner Unit Likely covered: * Answering politely * Speaking clearly * Leaving messages * Professional communication ⸻ Iambic Pentameter 10 syllables per line. Pattern: da-DUM da-DUM da-DUM da-DUM da-DUM Used by Shakespeare. ⸻ Couplet Two rhyming lines. Example: The moon shines bright above the sea. Its silver light belongs to me. ⸻ Meter The rhythm pattern of poetry. ⸻ Imagery Language that appeals to senses. Example: The warm chocolate smell drifted through the kitchen. ⸻ Dystopia A society with oppression or major problems. Example: Fahrenheit 451. ⸻ GRAMMAR Nouns Person, place, thing, idea. Verbs Action or state of being. Adverbs Describe verbs, adjectives, or other adverbs. Example: * He ran quickly. ⸻ RELIABLE VS UNRELIABLE NARRATORS Reliable Tells truth accurately. Example: Christopher from Curious Incident. Unreliable Lies, misunderstands, or is mentally unstable. Example: Narrator from The Tell-Tale Heart. ⸻ IDIOMS Common examples: * Break a leg * Piece of cake * Hit the books * Under the weather Know meanings, not literal definitions. ⸻ AMERICAN DREAM Belief that hard work leads to success. In Death of a Salesman: * Willy misunderstands the American Dream. * He values popularity over hard work. ⸻ TOXIC MASCULINITY The belief that men should: * Never cry * Never show emotions * Always be tough Can cause unhealthy behavior. ⸻ FRAGILITY OF HUMAN LIFE Life is delicate and can change suddenly. Examples: * To Build a Fire * The Thousand Dozen ⸻ MAN VS NATURE Human struggles against natural forces. Examples: * To Build a Fire * All Gold Canyon ⸻ MAN VS TECHNOLOGY Technology creates conflict. Examples: * The Veldt * Fahrenheit 451 ⸻ THEATER TERMS Upstage Away from audience. Downstage Closer to audience. Stage Left Actor’s left. Stage Right Actor’s right. Wings Areas offstage. Props Objects used by actors. Scenery Background pieces. Blocking Actor movement. Costume Actor clothing. Greenroom Waiting room for performers. Backstage Area behind stage. Apron/Forestage Part of stage extending toward audience. Box Office Where tickets are sold. Run Series of performances. Fourth Wall Invisible wall between audience and actors. Cue Signal to begin action. ⸻ GRAPHIC NOVEL TERMS Foreground Closest part. Midground Middle section. Background Farthest section. Symbolism Object representing an idea. Foreshadowing Hint about future events. Flashback Scene from the past. Speech Bubble Shows speech. Thought Bubble Shows thoughts. Caption Narration box. Gutter Space between panels. Panel Single comic frame. ⸻ AUTHORS William Shakespeare * English playwright * Wrote A Midsummer Night’s Dream * Used iambic pentameter Jack London * Wrote: * To Build a Fire * The Thousand Dozen * All Gold Canyon * Themes often involve nature and survival. Edgar Allan Poe * Wrote: * The Raven * The Tell-Tale Heart * Famous for horror and suspense. The Jabberwocky * A nonsense poem by Lewis Carroll. * A young hero is warned about the dangerous Jabberwock. * He goes on a quest and kills the monster. * Theme: bravery and heroism. * Important: The poem uses many made-up words, but readers can still understand the story through context. ⸻ The Curious Incident of the Dog in the Night-Time * Christopher Boone investigates the death of a neighbor’s dog. * He discovers family secrets, including that his mother is alive. * Christopher struggles with social situations and change. * Theme: * Truth vs. lies * Independence * Family relationships * Narrator: * Usually reliable because he tells facts. * Sometimes unreliable because he misunderstands emotions and social situations. ⸻ All Gold Canyon * A prospector discovers gold in an untouched canyon. * He carefully mines it. * Another man tries to steal it and shoots him. * The prospector survives and defeats the thief. * Themes: * Hard work * Greed * Nature’s beauty ⸻ The Thousand Dozen * David Rasmunsen transports 1,000 dozen eggs hoping to make a fortune. * Faces harsh weather and obstacles. * Egg prices drop before he can profit. * Themes: * Ambition * Greed * Risk ⸻ To Build a Fire * A man travels alone in freezing weather. * Ignores warnings from experienced people. * Cannot start a fire and dies. * Theme: * Man vs. Nature * Lesson: * Nature is stronger than humans. ⸻ The Tell-Tale Heart * Narrator murders an old man. * Hides the body. * Imagines hearing the dead man’s heartbeat. * Confesses. * Theme: * Guilt * Madness * Narrator is unreliable. ⸻ The Raven * A man mourns Lenore. * A raven repeatedly says “Nevermore.” * He becomes increasingly emotional. * Themes: * Grief * Loss * Madness ⸻ The Veldt * Parents give children a virtual-reality nursery. * Children become obsessed with it. * Technology replaces family relationships. * Theme: * Man vs. Technology ⸻ Fahrenheit 451 Plot * Guy Montag burns books. * Meets Clarisse, who makes him question society. * Begins reading books. * Escapes after turning against the government. Themes Distraction vs. Happiness People are constantly entertained but not truly happy. Mass Media Television controls people’s thinking. Knowledge vs. Ignorance Books contain knowledge; society wants ignorance. Conformity vs. Individuality People are expected to think the same. Action vs. Inaction Montag changes because he acts instead of remaining passive. ⸻ Maus Plot Art Spiegelman tells his father Vladek’s Holocaust story. Characters * Vladek = survivor * Artie = son Themes * Trauma * Survival * Family conflict ⸻ Death of a Salesman Plot Willy Loman believes success comes from popularity. His dreams fall apart. He dies hoping insurance money will help his family. Themes * American Dream * Reality vs. illusion * Family expectations ⸻ A Midsummer Night’s Dream Plot Lovers run into a forest. Fairies use magic. Everyone falls in love with the wrong person. Magic is fixed. Multiple marriages occur. Themes * Love * Appearance vs. reality * Imagination ⸻ POETRY TERMS Haiku * 3 lines * 5 syllables * 7 syllables * 5 syllables Example: Summer sunlight shines Waves crash softly on the shoreline Warm sand hugs my feet ⸻ Concrete Poem A poem shaped like its subject. ⸻ What is a Meme? A piece of media shared online that spreads an idea, joke, or trend. ⸻ Phone Manner Unit Likely covered: * Answering politely * Speaking clearly * Leaving messages * Professional communication ⸻ Iambic Pentameter 10 syllables per line. Pattern: da-DUM da-DUM da-DUM da-DUM da-DUM Used by Shakespeare. ⸻ Couplet Two rhyming lines. Example: The moon shines bright above the sea. Its silver light belongs to me. ⸻ Meter The rhythm pattern of poetry. ⸻ Imagery Language that appeals to senses. Example: The warm chocolate smell drifted through the kitchen. ⸻ Dystopia A society with oppression or major problems. Example: Fahrenheit 451. ⸻ GRAMMAR Nouns Person, place, thing, idea. Verbs Action or state of being. Adverbs Describe verbs, adjectives, or other adverbs. Example: * He ran quickly. ⸻ RELIABLE VS UNRELIABLE NARRATORS Reliable Tells truth accurately. Example: Christopher from Curious Incident. Unreliable Lies, misunderstands, or is mentally unstable. Example: Narrator from The Tell-Tale Heart. ⸻ IDIOMS Common examples: * Break a leg * Piece of cake * Hit the books * Under the weather Know meanings, not literal definitions. ⸻ AMERICAN DREAM Belief that hard work leads to success. In Death of a Salesman: * Willy misunderstands the American Dream. * He values popularity over hard work. ⸻ TOXIC MASCULINITY The belief that men should: * Never cry * Never show emotions * Always be tough Can cause unhealthy behavior. ⸻ FRAGILITY OF HUMAN LIFE Life is delicate and can change suddenly. Examples: * To Build a Fire * The Thousand Dozen ⸻ MAN VS NATURE Human struggles against natural forces. Examples: * To Build a Fire * All Gold Canyon ⸻ MAN VS TECHNOLOGY Technology creates conflict. Examples: * The Veldt * Fahrenheit 451 ⸻ THEATER TERMS Upstage Away from audience. Downstage Closer to audience. Stage Left Actor’s left. Stage Right Actor’s right. Wings Areas offstage. Props Objects used by actors. Scenery Background pieces. Blocking Actor movement. Costume Actor clothing. Greenroom Waiting room for performers. Backstage Area behind stage. Apron/Forestage Part of stage extending toward audience. Box Office Where tickets are sold. Run Series of performances. Fourth Wall Invisible wall between audience and actors. Cue Signal to begin action. ⸻ GRAPHIC NOVEL TERMS Foreground Closest part. Midground Middle section. Background Farthest section. Symbolism Object representing an idea. Foreshadowing Hint about future events. Flashback Scene from the past. Speech Bubble Shows speech. Thought Bubble Shows thoughts. Caption Narration box. Gutter Space between panels. Panel Single comic frame. ⸻ AUTHORS William Shakespeare * English playwright * Wrote A Midsummer Night’s Dream * Used iambic pentameter Jack London * Wrote: * To Build a Fire * The Thousand Dozen * All Gold Canyon * Themes often involve nature and survival. Edgar Allan Poe * Wrote: * The Raven * The Tell-Tale Heart * Famous for horror and suspense

Operator State: stress, workload, fatigue, distraction (Wk17)

refraction diffraction and intereference

Properties of Travelling Waves (reflection, refraction, diffraction, interference)

(Proteins and Enzymes) Diffraction Methods

What are some examples of human behaviors that might be considered instinctual? Human instinctual behaviors include newborn reflexes (like grasping), fear responses (like loud noises or heights), bonding between parents and children, facial expressions (like smiling and crying), the fight-or-flight response, imitation, language learning ability, and the need for social connection. In Drive-Reduction Theory, what is meant by a “drive”? What about “homeostasis”? In Drive-Reduction Theory, a “drive” is an internal state of tension or discomfort caused by an unmet biological need, such as hunger or thirst, that motivates a person to act. “Homeostasis” refers to the body’s tendency to maintain a stable and balanced internal state, so behaviors are motivated by the desire to reduce drives and restore balance. How is the Arousal Theory different from Drive-Reduction Theory? Arousal Theory focuses on seeking an optimal level of stimulation, while Drive-Reduction Theory focuses on reducing biological needs. Arousal explains thrill-seeking; drive-reduction explains behaviors like eating when hungry. How does Maslow’s Hierarchy suggest we prioritize our goals? Maslow's Hierarchy of Needs suggests that people tend to prioritize basic needs before higher-level goals. According to the theory, physiological needs like food and sleep come first, followed by safety, love and belonging, esteem, and finally self-actualization, which involves reaching one’s full potential. The idea is that lower-level needs usually must be reasonably satisfied before a person focuses strongly on higher-level needs. Give a real-life example of each level of Maslow’s hierarchy. In Maslow's Hierarchy of Needs, physiological needs include food and sleep, safety needs include shelter and security, love and belonging involve friendships and family, esteem needs include confidence and respect, and self-actualization involves reaching personal goals and potential. Why might Maslow's theory be criticized across different cultures?+ù Maslow's Hierarchy of Needs may be criticized across cultures because it reflects individualistic values, such as personal achievement and self-actualization, which may not be prioritized equally in all societies. In some cultures, community, family, or group needs may be considered more important than individual goals. What is the difference between intrinsic and extrinsic motivation? Intrinsic Motivation comes from internal enjoyment or personal satisfaction, while Extrinsic Motivation comes from external rewards or pressures, such as money, grades, or praise. Which type of motivation do you think leads to more lasting change? Why? Intrinsic Motivation usually leads to more lasting change because the behavior is driven by genuine interest, enjoyment, or personal meaning, so it continues even without external rewards. Extrinsic Motivation can be effective in the short term, but the behavior often stops when rewards or pressure are removed, since the motivation depends on outside factors rather than internal commitment. What are the traits of someone with a high need for achievement? A person with a high need for achievement sets challenging but realistic goals, prefers tasks with clear personal responsibility, seeks feedback, and is persistent. They are motivated by doing well and improving rather than just external rewards. Why might low achievers choose tasks that are either very easy or very hard? People with a low need for achievement may choose very easy tasks because they are almost guaranteed success, which helps them avoid failure and protect their self-esteem. They may also choose very hard tasks because failure can be blamed on the difficulty of the task rather than their ability, which also protects their self-image. What role does the hypothalamus play in hunger? The hypothalamus helps regulate hunger by monitoring the body’s energy needs and signaling when to eat or stop eating. Different parts work together: one area triggers hunger when energy is low, while another signals fullness after eating. It responds to hormones, blood sugar levels, and signals from the stomach to maintain balance. What is the difference between set point theory and settling point theory? Set point theory says the body has a fixed, biologically controlled weight it tries to maintain. Settling point theory says weight is flexible and depends on lifestyle and environment, so it can change over time. What psychological and social cues can influence how much we eat? Psychological cues like stress, mood, and distraction can increase or decrease how much we eat. Social cues such as eating with others, portion sizes, and cultural expectations also strongly influence eating behavior. What are the symptoms of anorexia nervosa? Anorexia Nervosa includes extreme food restriction, significant weight loss, intense fear of gaining weight, and a distorted body image. It can also cause fatigue, dizziness, feeling cold, and in some cases, serious health problems. How does bulimia differ from anorexia? Bulimia Nervosa involves binge eating followed by purging and often normal weight. Anorexia Nervosa involves severe food restriction and very low body weight. How might perfectionism be linked to the development of eating disorders? Perfectionism can lead people to set unrealistically high standards for their body, weight, or eating habits, which increases stress and dissatisfaction. This pressure can contribute to restrictive eating or binge-purge behaviors as they try to “achieve” an ideal body image. According to James-Lange theory, what comes first: the emotion or the physical response? According to James-Lange Theory, the physical response comes first. The body reacts to a stimulus, and then the brain interprets those physical changes as an emotion. How does Cannon-Bard theory explain simultaneous emotion and bodily reaction? Cannon-Bard Theory says emotion and bodily reaction happen at the same time. A stimulus triggers the brain to send signals that produce both the emotional experience and the physical response simultaneously, rather than one causing the other. What evidence supports the idea that emotions are biologically universal? Evidence shows people across cultures recognize the same facial expressions, and even blind people show them, suggesting emotions are biologically universal. Similar brain activity patterns also support this idea. . What are Paul Ekman’s universal emotions? Paul Ekman identified six universal emotions: happiness, sadness, anger, fear, disgust, and surprise. How might facial expressions influence how we feel? Facial expressions can shape emotions through the idea that acting a certain way can influence how we feel internally. For example, smiling may increase feelings of happiness, while frowning can intensify sadness. Body and facial feedback to the brain helps reinforce or even create emotional experiences. Why is it important to recognize that emotions can be expressed differently across cultures? Paul Ekman shows some emotions are universal, but recognizing cultural differences matters because people can display and interpret emotions in different ways across cultures. Misunderstanding these differences can lead to miscommunication or incorrect judgments about others’ feelings or intentions

StemUp: AQA A level Physics 3.3.2 Refraction, diffraction and interference

NCLEX Review: Mental Health Disorders Anxiety Disorders Generalized Anxiety Disorder (GAD) Excessive worry lasting 6 months or more Symptoms: Restlessness Muscle tension Fatigue Poor concentration Sleep disturbance Panic Disorder Sudden intense fear with: Chest pain Palpitations Shortness of breath Feeling of doom Nursing: Stay with client Calm environment Short/simple communication Phobias Irrational fear of object/situation Treatment: Exposure therapy CBT SSRIs sometimes used OCD (Obsessive-Compulsive Disorder) Obsessions = intrusive thoughts Compulsions = repetitive behaviors to reduce anxiety Nursing: Do not suddenly stop rituals Set limits gradually Encourage coping skills PTSD Triggered after traumatic event Symptoms: Flashbacks Hypervigilance Nightmares Avoidance Priority: Safety Trauma-informed care Depression Disorders Major Depressive Disorder Symptoms SIGECAPS: Sleep changes Interest loss Guilt Energy low Concentration poor Appetite changes Psychomotor changes Suicidal thoughts Nursing Priorities Suicide assessment Nutrition/hydration Sleep/rest Medication adherence Medications SSRIs Examples: Sertraline Fluoxetine Teachings: Takes weeks to work Do not stop abruptly Watch for serotonin syndrome Serotonin Syndrome Symptoms: Agitation Fever Tremor Hyperreflexia Diarrhea Bipolar Disorder Mania Symptoms Mnemonic: DIG FAST Distractibility Indiscretion Grandiosity Flight of ideas Activity increased Sleep deficit Talkative Nursing Care Reduce stimulation Set firm limits High-calorie finger foods Encourage rest Medications Mood Stabilizers Lithium Anticonvulsants Lithium Toxicity Therapeutic level: 0.6–1.2 mEq/L Toxic signs: Tremor Vomiting Confusion Ataxia Severe diarrhea Important: Maintain sodium/fluid intake Dehydration increases toxicity risk Schizophrenia Spectrum Disorders Positive Symptoms Things added: Hallucinations Delusions Paranoia Disorganized speech Negative Symptoms Things lost: Flat affect Social withdrawal Anhedonia Lack of motivation Hallucination Nursing Response Present reality “I do not hear the voices.” Assess for command hallucinations Delusions Do NOT argue. Respond: “I understand this feels real to you.” Antipsychotics First Generation Haloperidol Risk: EPS Tardive dyskinesia Neuroleptic malignant syndrome (NMS) Second Generation Olanzapine Risperidone Risk: Weight gain Diabetes Metabolic syndrome EPS Symptoms Acute dystonia Akathisia Parkinsonism Tardive dyskinesia Treatment: Benztropine Diphenhydramine Neuroleptic Malignant Syndrome Medical emergency: Fever Rigidity Confusion Elevated CK Personality Disorders Cluster A Odd/eccentric Paranoid Schizoid Schizotypal Cluster B Dramatic/emotional Antisocial Borderline Histrionic Narcissistic Borderline Personality Disorder Fear of abandonment Splitting staff Self-harm risk Nursing: Consistent boundaries Team communication Cluster C Anxious/fearful Avoidant Dependent Obsessive-compulsive personality disorder Eating Disorders Anorexia Nervosa Severe restriction Distorted body image Bradycardia Electrolyte imbalance Priority: Monitor cardiac status Daily weights Observe after meals Bulimia Nervosa Binge/purge behavior Normal weight often seen Complications: Hypokalemia Dental erosion Substance Use Disorders Alcohol Withdrawal Starts within hours after last drinkd

2.4b - Interference and diffraction

Refraction/diffraction

borne approximation, scattering and diffraction

1. Compulsive (Adj - C1): Có tính cưỡng bách (không kiểm soát được). Đồng nghĩa: Uncontrollable, obsessive. Trái nghĩa: Voluntary, deliberate. 2. Digital detox (Collocation - B2): Giải độc kỹ thuật số (ngưng dùng thiết bị điện tử). Đồng nghĩa: Tech break, offline period. Trái nghĩa: Constant connectivity. 3. Dopamine hit (Thuật ngữ - C2): Sự giải phóng dopamine (tạo cảm giác hưng phấn tức thời). Đồng nghĩa: Instant gratification, rush. Trái nghĩa: Long-term satisfaction. 4. Cognitive load (Thuật ngữ - C2): Tải trọng nhận thức (mức độ hoạt động của trí não). Đồng nghĩa: Mental effort. Trái nghĩa: Mental relaxation. 5. Impulse control (Collocation - C1): Kiểm soát xung động. Đồng nghĩa: Self-restraint, willpower. Trái nghĩa: Recklessness, indulgence. 6. Ubiquity (Noun - C2): Sự phổ biến ở khắp mọi nơi. Đồng nghĩa: Omnipresence, pervasiveness. Trái nghĩa: Rarity, scarcity. 7. Detrimental (Adj - C1): Có hại, bất lợi. Đồng nghĩa: Harmful, damaging. Trái nghĩa: Beneficial, helpful. 8. Intermittent reinforcement (Thuật ngữ - C2): Củng cố ngắt quãng (cơ chế gây nghiện trong thông báo/mạng xã hội). Đồng nghĩa: Random rewards. Trái nghĩa: Continuous reinforcement. 9. Sedentary (Adj - C1): Thụ động, ít vận động. Đồng nghĩa: Inactive, stationary. Trái nghĩa: Active, mobile. 10. Attention span (Collocation - B2): Khoảng tập trung. Đồng nghĩa: Concentration duration. Trái nghĩa: Distractibility. 11. Aggregator (Noun - C1): Bộ thu thập/tổng hợp thông tin. Đồng nghĩa: Collector, synthesizer. Trái nghĩa: Disseminator. 12. Mitigate (Verb - C1): Giảm nhẹ, làm dịu bớt (tác động tiêu cực). Đồng nghĩa: Alleviate, lessen. Trái nghĩa: Exacerbate, aggravate. 13. Psychological dependency (Collocation - C2): Sự lệ thuộc vào tâm lý. Đồng nghĩa: Mental addiction. Trái nghĩa: Independence, autonomy. 14. Preoccupation (Noun - C1): Sự bận tâm, ám ảnh. Đồng nghĩa: Obsession, fixation. Trái nghĩa: Indifference, apathy. 15. Incessant (Adj - C2): Không ngừng, liên miên (thường gây khó chịu). Đồng nghĩa: Constant, never-ending. Trái nghĩa: Occasional, intermittent. 16. Proximity (Noun - C1): Sự gần gũi (về khoảng cách). Đồng nghĩa: Closeness, nearness. Trái nghĩa: Distance, remoteness. 17. Curb (Verb - B2): Kiềm chế, nén lại. Đồng nghĩa: Restrain, inhibit. Trái nghĩa: Release, encourage. 18. Mindfulness (Noun - B2): Sự chánh niệm/tỉnh thức. Đồng nghĩa: Awareness, attentiveness. Trái nghĩa: Absent-mindedness. 19. Disruptive (Adj - B2): Gây gián đoạn, phiền phức. Đồng nghĩa: Disturbing, unsettling. Trái nghĩa: Soothing, organizing. 20. Nuanced (Adj - C2): Sắc thái, tinh tế (nhiều khía cạnh nhỏ). Đồng nghĩa: Subtle, complex. Trái nghĩa: Simple, oversimplified. 21. Abstinence (Noun - C2): Sự kiêng khem, tiết chế. Đồng nghĩa: Refraining, avoidance. Trái nghĩa: Indulgence, excess. 22. Withdrawal symptoms (Collocation - C1): Các triệu chứng cai nghiện. Đồng nghĩa: Detox reactions. Trái nghĩa: Comfort, stability. 23. Incorporate (Verb - B2): Kết hợp, tích hợp vào (thói quen). Đồng nghĩa: Integrate, include. Trái nghĩa: Exclude, separate. 24. Social alienation (Collocation - C2): Sự xa lánh xã hội. Đồng nghĩa: Isolation, estrangement. Trái nghĩa: Social integration. 25. Default setting (Collocation - B2): Thiết lập mặc định. Đồng nghĩa: Pre-set configuration

Diffraction

b) Electron diffraction

b) Electron diffraction

P6: Biophysical chemistry and diffraction