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Papers on Science and Nature
Blood Doping
Number of words: 809 | Number of pages: 3.... Fatigue usually sets in with the onset of lactic acid production. Oxygen is carried to the muscle by two delivery systems. Three percent of oxygen is carried in plasma and ninety-seven percent is in hemoglobin, the principal protein in erythrocytes (red blood cells). If hemoglobin amounts are increased, this will lead to increased oxygen levels that can be transported to the muscles. Allowing the muscles to become more fatigue resistant.
could have opposite effect of those intended. A large infusion of red blood cells could increase blood thickness and cause a decrease in cardiac output and a reduction in oxygen content. .....
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Aids 3
Number of words: 1460 | Number of pages: 6.... a mother is infected, the unborn child will almost positively receive the virus before, during, or after the pregnancy.
The viruses which cause AIDS, otherwise known as Human Immunodeficiecy Viruses(HIV) were first discovered in 1983 cooperatively by Dr. Robert Gallo of the National Cancer Institute and Dr. Luc Montagnier of the Pasteur Institute in France. Aids is caused mainly by the HIV-1 virus, while the HIV-2 virus is less pronounced among those infected. Scientists are puzzled as to why this dominant HIV-1 virus has 10 different genetic subtypes, some think that it is so the virus will survive no matter what.
HIV is .....
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Fetal Alcohol Syndrome 2
Number of words: 882 | Number of pages: 4.... occurs in anywhere from point five to three live births per thousand in western countries…It is estimated that between thirty and forty percent of all woman who drink heavily during pregnancy will have a child afflicted with Fetal Alcohol Syndrome…Fetal Alcohol Syndrome outranks Down's Syndrome in prevalence and is the leading case of mental retardation" (Britanica 1). Once the damage is done it cannot be undone. Babies who are born with Fetal Alcohol Syndrome suffer symptoms that are permanent. Without a doubt the easiest way to prevent these defects is to not drink alcohol at all during pregnancy. Education also p .....
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Multi-regional Continuity: The Fossil Evidence
Number of words: 1080 | Number of pages: 4.... include thick cranial walls, heavy supraorbital ridges, large teeth, large eye sockets, sloping foreheads, low cranial volume (below 1200 cc.), high prognathism in the area of the lower face, and a small, football-shaped cranium. The presence of various mixtures of these modern and archaic traits forms the basis for identifying a fossil as transitional modern/archaic in accordance with the multi-regional continuity model of human evolution.
As an example of transitional fossils found outside of Africa and in accordance with the multi-regional model of human evolution, the remains found in the Ngangdong beds of the Solo Riv .....
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Evolution
Number of words: 4241 | Number of pages: 16.... 48
INTRODUCTION
Theories explaining biological evolution have been bandied about since the ancient Greeks, but it was not until the Enlightment of the 18th century that widespread acceptance and development of this theory emerged. In the mid 19th century english naturalist Charles Darwin - who has been called the "father of evolution" - conceived of the most comprehensive findings about organic evolution ever1. Today many of his principles still entail modern interpretation of evolution. I've assessed and interpreted the basis of Darwin's theories on evolution, incorporating a number of other fac .....
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Jaguars 2
Number of words: 1172 | Number of pages: 5.... around. When six months comes and the cubs have learned how to do things the way their mother does, they begin to hunt with their mother. At one year the cubs can now hunt for their own food. Even though they can hunt for their own food they still stay with their mother for a few years before finding their own hunting territory. By three years the cubs have learned enough to where they leave their mother to live on their own.
The jaguar's characteristics are very interesting. Jaguars like to stalk their prey by getting as close to it as possible without being noticed then they attack it. They usually hunt during the night .....
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Surface Tension
Number of words: 617 | Number of pages: 3.... distribution of tension on the thin film of soap, is another
example of this force; surface tension alone can support a needle placed
horizontally on a water surface.
Surface tension depends mainly upon the forces attraction between the
particles within the given liquid and also upon the gas, solid, or liquid in
contact with it. The molecules in a drop of water, for example, attract each
other weakly. Water molecules well inside the drop may be thought of as being
attracted equally in all directions by the surrounding molecules. However if
surface molecules could be displaced slightly outward from the surface, they
would be attr .....
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Biology Work Requirement 3 Biology Work Requirement 3
Number of words: 512 | Number of pages: 2.... purpose of space. In this day and age the human race is multiplying and therefore we require more space to expand cites and build more houses. To do this world government cut down any forests in their way.
Ø Industrial commercial purposes
Big industries also contribute to deforestation. EG "Macdonald's uses 800 square miles of trees just for the paper packaging of their products". That is an appalling amount of trees that are used just for burger wrappers. A conservation group has found that 11 million acres a year are being logged for use by commercial and property industries. If that rate keeps on going we will have no f .....
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Nickel Metal Hydrive Battery For Electric Vehicals
Number of words: 610 | Number of pages: 3.... Ni(OH)2 at the positive electrode to form NiOOH. Ni now change from +2 to +3.
Ni(OH)2 +OH = NiOOH + H2O + e
From equation (1) and (2) there is no net change in electrolyte quantity or concentration over the charge and discharge cycle. We can see that it is different from other alkaline electrode such as NiCd which water is produced at both electrode during charge and used up during discharge. In the NiMH battery, the constant average concentration can reduce the corrosion and swelling.
MATERIAL REQUIRED
Because the NiMH battery need to store a large amount of hydrogen to produce high energy, it is desirable to have high .....
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Analysis On Electronic Data Imaging
Number of words: 2218 | Number of pages: 9.... Roth Associates, 1996). The following statistics are evidence of the massive amounts of paper that exist in American business today:
Over three trillion documents are currently stored in corporate offices in the U.S. alone and 95 percent of those are in paper from.
One billion pages are generated a day in the United States.
A typical executive stores the equivalent of five filing cabinets of paper.
This same executive also spends more than 150 hours a year searching for misplaced documents.
The average missing file cost $120.00 in lost productivity.
80 percent of business documents are generated by computers and 60 percent .....
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