The Giver * Jonas feels frightened after seeing an aircraft fly over the community. * The community has very strict rules. * Families share feelings every day. * Jonas lives with Mother, Father, and Lily. * We learn about the “Ceremony of Twelve.” Chapter 2 * Parents explain the Ceremony of Twelve to Jonas. * At age 12, children receive their life assignments. * Jonas worries about what assignment he will get. * Father works with newborn babies. * The community values sameness and order. Chapter 3 * Jonas notices something strange about Gabriel’s eyes — they are pale like his own. * Jonas briefly sees an apple change color. * Father secretly brings Gabriel home for extra care. * Jonas begins noticing differences others do not. Chapter 4 * Jonas volunteers at the House of the Old. * He helps bathe an elderly woman named Larissa. * Larissa talks happily about “release.” * Jonas thinks release is a positive ceremony. Chapter 5 * Families discuss dreams in the morning. * Jonas has a dream about Fiona and realizes he is having “Stirrings.” * His mother gives him pills to stop these feelings. * The community controls emotions and attraction. Chapter 6 * The Ceremony begins. * Different age groups receive new responsibilities. * Children move to new stages of life. * Jonas becomes nervous waiting for his assignment. Chapter 7 * The Chief Elder skips Jonas during the Ceremony of Twelve. * Jonas feels embarrassed and afraid. * The community reacts silently. * The Chief Elder says Jonas was not forgotten. Chapter 8 * Jonas is selected as the new Receiver of Memory. * The Receiver is the most honored role in the community. * Jonas is told he has intelligence, integrity, courage, and wisdom. * Previous Receiver-in-training failed 10 years earlier. Chapter 9 * Jonas receives special rules: * He may lie. * He is exempt from rudeness rules. * He cannot discuss training. * He may ask any question. * Jonas becomes frightened by the power of his role. Chapter 10 * Jonas goes to the Annex behind the House of the Old. * He meets the Receiver, who asks Jonas to call him “The Giver.” * The room contains books, unlike the rest of the community. * Jonas begins his training. Chapter 11 * The Giver gives Jonas his first memory: snow and sledding. * Jonas experiences real pain and pleasure for the first time. * He learns his community removed memories to avoid suffering. * Jonas now understands snow, hills, and sunshine are real things from the past

Atmospheric Pollutants and Chemicals

Control Technology for Atmospheric Pollution

Physics: Hydrostatic Pressure and its Applications

BLOOD PRESSURE

chamber pressures

Blood pressure

Common atmospheric measurement devices & sampling considerations

biology unit 6(nitrogen cyle) new The Nitrogen Cycle Higher Tier Only Nitrogen is present as N2 gas in the atmosphere and within biological molecules, e.g. proteins, in the tissues of living organisms Nitrogen is cycled through ecosystems by the processes of the nitrogen cycle Uptake of nitrogen by living organisms N2 in the atmosphere is made available to living organisms by the process of nitrogen fixation Nitrogen fixation is carried out by nitrogen-fixing bacteria which convert N2 gas into ammonium compounds; these compounds are converted into nitrates in the soil Nitrogen-fixing bacteria can be free-living in the soil or they can live within root nodules of legume plants, e.g. peas, beans and clover Nitrogen gas can also be fixed by lightning when it strikes the earth, or during the production of chemical fertilisers After nitrogen fixation has occurred plants absorb the nitrates in the soil and use the nitrogen to build plant proteins Transfer of nitrogen between living organisms Animals feed on plants and digest the proteins in the plant tissues, providing nitrogen to build animal proteins Nitrogen may then be passed from one consumer to another up the food chain in the same way Release of nitrogen from living tissues Nitrogen from living organisms is returned to the soil in the form of ammonia by the action of decomposers such as bacteria and fungi When animals and plants die the proteins inside their tissues are broken down by the action of decomposers and returned to the soil in the form of ammonia Waste, i.e. urine and faeces, from animals contains urea, which is converted into ammonia by the action of the bacterial enzyme urease The plants can’t absorb ammonia so nitrifying bacteria convert the ammonia to nitrates which can then be taken up again by plants The conversion of ammonium compounds to nitrates is known as nitrification Returning nitrogen to the atmosphere Nitrates in the soil can be converted back into nitrogen gas (N2) by the action of denitrifying bacteria This process is known as denitrification Denitrifying bacteria are active in anaerobic conditions, e.g. in waterlogged or compacted soil Farmers can decrease the activity of denitrifying bacteria by ploughing the soil to increase aeration Nitrogen cycle diagram nitrogen-cycle-gcse The nitrogen cycle involves nitrogen fixation, decomposition, nitrification and denitrification Factors affecting the nitrogen cycle Because so many processes within the nitrogen cycle are carried out by microorganisms the cycle can be affected by factors that affect microorganism activity, e.g. Temperature This affects the rate at which enzyme-controlled reactions can occur Oxygen availability Aerobic bacteria rely on oxygen for respiration Low oxygen availability may lead to an increase in the activity of anaerobic bacteria, e.g. denitrifying bacteria pH This affects the rate of enzyme-controlled reactions as extreme pH levels can cause denaturation Water Water is needed by living organisms, so the rate of microbial activity increases in soil where moisture is present The presence of heavy metals in the soil Heavy metals, e.g. mercury and lead, can be toxic to the metabolism of microorganisms These factors are known to influence the rate at which decomposition occurs in compost heaps and landfill sites

Right atrial pressure

Atmosphere

6.2 atmosphere

Pressure and Heat Lecture Notes

Module 8: Neural Control of Blood Pressure

Comparing the Early and Current Atmosphere

Pressure Ulcers

Particle Model and Pressure (3.3)

A carnival atmosphere

Civil liberty pressure groups

ERSC 101 Module 10.7-8 - Ocean-Atmosphere Connections - California temperatures - sea level rise etc - Handouts (1)