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» Science Essays and Papers
Clinical Depression A Disease Like Any Other.
<view this essay>.... diagnosed as far back as in the times of Hippocrates, an ancient Greek physician, who called the disease melancholia. He viewed it as an abnormal behavior which was caused by other diseases. Hippocrates recommended rest, exercise and a change in ones diet as treatment to this illness. Later, in the middle ages, this abnormal behavior was considered to be a result of demonic possession. It was treated with exorcism, flogging and torture to drive the evil spirits from the body.
It wasn't until the late 19th and early 20th centuries that physicians had a more scientific view on depression. Sigmund Freud and Josef Breuer discovered that depression i .....
Number of words: 1120 | Number of pages: 5 |
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Biology, The Five Major Compounds
<view this essay>.... are some of the most numerous molecules in living organisms. They play a major role as food molecules in the cell, being broken down to produce energy. Polysaccharides play an important role serving as energy reserves also. It provides a quick-release energy source that keeps us going between meals. Small amounts of carbohydrates are also used for structural purposes and others are attached to outer surfaces of cell membranes to guide cellular interactions. For many cells, sugars are the most important source of energy.
Lipids are important because they function as structural components of cell membranes, sources of insulation, and a mean of energy .....
Number of words: 1150 | Number of pages: 5 |
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Gold And Its Uses
<view this essay>.... that are conductive allow this current to flow unimpeded. "Gold is able to convey even a tiny electrical current in temperatures varying from -55° to +200° centigrade." (Gold Institute) Gold is the most ductile of all metals, allowing it to be drawn out into tiny wires or threads without breaking. Consequently, a single ounce of gold can be drawn into a wire five miles long. Gold's malleability is also unparalleled. It can be shaped or extended into extraordinarily thin sheets. For example, one ounce of gold can be hammered into a 100 square foot sheet.
Gold is the most reflective and least absorptive material of infrared (or heat) energy. High purity gold .....
Number of words: 2573 | Number of pages: 10 |
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