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British Medical Journal Depressive Disorder
1,639 words... s of yet. Prozac acts on Serotonin levels, where as Reboxetine acts on the noradrenaline levels. Some experts believe that drive and motivation are related to noradrenaline, and mood states are associated with serotonin. Like the SSRIs (specific serotonin reuptake inhibitors), the noradrenaline reuptake inhibitor Reboxetine does not have the major adverse side effects as the trycilic antidepressants, such as sexual dysfunction. Reboxetine has been shown to take effect much faster than any ot...
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A Summary Ion Channels In The Membrane
869 wordsA Summary: Ion Channels in the Nerve-Cell Membrane In this article, Richard D. Keynes details the workings of ion channels in nerve cell membranes. Nerve impulses (action potentials) are the unit by which information travels in an organisms nervous system, and the generation of this action potential is dependent on the nerve membrane being permeable to ions which in turn makes said membrane excitable. Electrical activity of a nerve is triggered by a depolarization across the membrane and this al...
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Obsessive Compulsive Amp Amp
1,109 wordsCase Study: Mrs A is a 71 year old widow with CCF and osteoarthritis who has recently been exhibiting quite unusual behaviour. Her daughter is concerned about her mother's ability to remain independent and wishes to pursue nursing home admission arrangements. She fears the development of a depending illness. Over the last two to three months Mrs A has become confused, easily fatigued and very irritable. She has developed disturbing obsessive / compulsive behaviour constantly complaining that her...
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Permeable Membrane Semi Permeable
781 wordsOsmosis is the flow of water through a semi permeable membrane that blocks the transport of salts or other solutes through it. It is also defined as the net movement of water from an area of high concentration to a region of low concentration. Osmosis is a fundamental effect in all biological systems. When two water volumes are separated by a semi permeable membrane water will flow from the side of low solute concentration to the side of high solute concentration. If external pressure is applied...
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Molecular Biology Membrane Potential
1,317 words... that span the membrane. Class 5. Lipid Anchored These proteins undergo substitution with the carbohydrate groups of glycolipids, therefore binding covalently with the lipid. This classification is not definitive in including all proteins, since there may well be other examples that span the membrane with different numbers of anchor chains. The structure of proteins varies greatly. The first factor affecting structure is the proteins function, but equally important is the proteins location, a...
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Uv Light Respiratory System
1,069 wordsPrint Carbon CARBON process, The Print fading was a common occurrence in the earliest days of photography, and several people sought to address themselves to this problem. In the mid 1850 s some began to experiment with carbon, and in 1864 Joseph Wilson Swan perfected the process, which he also patented. Prints made using this process came in any colour, and were permanent. The sensitizing solution consisted of a mixture of carbon, gelatin, the colouring material, and potassium bichromate. Once ...
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Active Transport Membrane Potential
2,258 wordsEffects Of Solutions On Ion Transport Across Membranes Abstract Concentration gradients exist between two different salt molarity solutions on opposite sides of a membrane. Movement of ions across these sides can be achieved by either active or passive diffusion. In our first three experiments we used these concentration gradients to determine the characteristics of selective permeability of an artificial membrane to potassium chloride (KCl), the potential difference across the skin of a frog, R...
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Sodium Hydroxide Potassium Hydroxide
1,877 wordsExperiments To Determine The Effect Of Acids Experiments To Determine The Effect Of Acids &# 038; Bases Experiments to Determine the Effect of Acids &# 038; Bases on Different Indicators and the pH of Common Cleaning Agents The aim of the first set of experiments is to find out and record the colour changes that are observed after a certain indicator is mixed with acids and bases to form a colour reaction. Once the selected indicator has been mixed with a acid that is both weak and strong and a ...
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Plant Growth Harmful Effects
2,117 wordsMany questions have Fertilizers Fertilizers Many questions have been raised concerning the use of fertilizers, why plants require them, and about the benefits they bring. Fertilizers have a significant effect on humanity, as they form the basis of food production. The addition of fertilizers assists enrichment of soil fertility and corrects nutrient deficiencies so that plants can grow more healthily, provide crops and food for people, and increase food production. In this way, fertilizers are s...
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Potassium Hydroxide Carbon Dioxide
1,400 wordsFinding out about photosynthesis Date: Partners: Aim: To be able to explain the conditions necessary for photosynthesis and to compare experimental results to a control. To recognise tests for some inorganic substances found in plants. Materials: h A plant with variegated leaves in a pot which has been in the dark for 24 hours prior to the class h Iodine h Alcohol h Potassium hydroxide h Hotplate (or Bunsen burner with tripod) h Petri dish h Funnel h 2 flasks (500 ml) h 2 beakers h Aluminium foi...
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Amino Acids Body Weight
2,152 wordsFoals: The First Year RUSTY MILLER STATEMENT DESCRIBING CAREER GOALS AND RESEARCH INTERESTS MASTERS IN ANIMAL SCIENCE AUGUST 1, 2000 RESEARCH INTERESTS AND BACKGROUND INFORMATION Introduction: The following is a report on my research information on foal? s nutritional need through there first year of life. This report will also show a research project that I would like to do for my Masters degree I. Nutrition A. Nutritional Requirement 1. Details of general nutrition 2. Requirements B. Other it...
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H 2 O Potassium Hydroxide
930 wordsImagine filling your tank with a garden hose, driving 5000 kilometers, and then stopping for a drink out of your tailpipe! This, ladies and gentlemen, is the future. But how is this possible? With a device called a fuel cell. These cells run primarily off of water, but can run from many different fluids including methanol, gasoline, and devel in a pinch. How do these fuel cells work, and what impact will they have on the future? In this century we have seen huge technological breakthroughs, thin...
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Red Blood Cells High Blood Pressure
2,274 wordsMost people know that good nutrition is important for good health. Recommended Dietary Allowances (RDA) are the daily amounts of essential nutrients that will prevent deficiencies in most healthy people. But not many people realize the importance a healthy diet can have on their health for years to come. To help us stay healthy a person should eat a variety of foods, maintain ideal weight, avoid too much fat, and eat foods with enough starch and fiber. A good diet helps children grow, develop, a...
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Low Potassium Foods Potassium In The Body Plants
640 wordsPotassium is a Potassium Potassium Potassium is a vital element in the human body. Potassium had never been distinguished between sodium until the eighteenth century. Before potassium was recognized as an element, potassium carbonate was mixed with animal fat to make soap. It was discovered by Sir Humphrey Davy in England, in 1807. Sir Davy was able to isolate potassium using electrolysis. Potassium was the first metal isolated by this procedure. Today, it is still not found free in nature. It i...
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Sulfuric Acid Nitric Acid
11,285 wordsPreparation And Mechanisms Of High And Low Preparation And Mechanisms Of High And Low Grade Explosives EXPLOSIVE FORMULAS Once again, persons reading this material should never attempt to produce any of the explosives described here. It is illegal and extremely dangerous to do so. Loss of life and limbs could easily result from a failed (or successful) attempt to produce any explosives or hazardous chemicals. These procedures are correct, however many of the methods given here are usually scaled...
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