Hereditary Colon Cancer
.... Some people have been known to be as young as 13years of age. Most colon polyps are benign but some become cancerous. Most FAP patients develop cancer by the age of 39. Another form of hereditary cancer is Hereditary Non-Polyposis (HNPCC). HNPCC accounts for five to ten percent of all cases. HNPCC develops also at a young age but not as young as FAP patients. The actual cancer appears in the persons 40's. HNPCC is known as a "fast growing" form of cancer. Along with colon cancer HNPCC patients are .....
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Herpes
.... commonly infected areas are moist areas of the mouth, anus, vulva, vagina, penis, or the eyes.
Even though herpes in many cases is easily spread between two individuals, it is definitely possible to prevent the spreading of herpes to others. There are usually early warning signs before a breakout occurs such as tingling, burning, and itching where sores were before. These warning signs may start a few hours or even a day before the sores flare up. At first sight of any warning signs, all sexual c .....
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Historic Model Of Science
.... country. Such as, the economy might be used to determine the status or worldly position of a country today that is how science was used during the Age of Enlightenment.
The progression of science and the overwhelming success of the ‘heroic model’ not only yanked science to the forefront, but it also influenced and changed the way history was being perceived and studied. Historians began to realize that the concepts and basics of ‘new’ science could be used in history. The .....
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History And Development Of The Internet
.... called "packet switching". Packet Switching is a means of breaking up the message being sent into small packets which carry enough information to seek out its destination and sending them out separately towards the destination server. The message after being broken up would take separate routes to the destination and then be re-assembled by the computer at the server where the message was being sent. This was good because with more than one route for information to travel on, the enemy did not have one .....
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History Of Birth Control
.... menstruation and ovulation that can be identified by keeping a careful record of the dates of menstruation. A second assumption is that
ovulation occurs 14 days before the onset of the next menstruation. The rhythm method is the most commonly used of the natural methods.
To be used successfully a record should be kept for at least six menstrual cycles. The fertile period is then defined by a set of rules for example: The length of the shortest cycle less 18 days marking the start of the ferti .....
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History Of Cell Membrane
.... ago biological fact was based on what could be seen and since the proposed lipid membrane was smaller than the wavelength of visible light it could not be studied under the light microscope. Most biologists merely concerned themselves with more evident structures. However, some scientists continued to dedicate their time to examining this ‘invisible’ structure.
Two such biologists were the Dutch Edwin Gorter and F. Grendel. They recognised in 1925 that two such lipid layers existed. Whils .....
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History Of Computers
.... on rows of wires suspended within a rectangular frame. A common form has a piece of wood dividing the beads, with five beads on one side, and two on the other side of the wood on each wire.
Calculating Machines and their Inventors:
Through the centuries, several mathematical geniuses invented machinesto aid them in their calculations. The machines were never widely used and generally had no direct path to the later development of electronic computers. Example:
Pascal:
Blaise Pascal ( .....
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History Of The Aircraft Propeller
.... These contraptions were quite strange and hardly fulfilled their purpose of actually propelling the balloon. The basic propeller had evolved from the simple concepts of da Vinci, and was slowly becoming an effective means of aerial propulsion. To reach the next plateau of flight an increased knowledge of the propeller would be needed, and the mysteries of the propeller and mechanical power would need to be solved. These substantial tasks remained for aviation's pioneers to tackle during the 19th cen .....
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History Of The F-16
.... on February 2, 1974. A level speed of Mach 2 at 40,000 ft was attained on March 11, 1974.
The production F-16A differed from the YF-16 in having a 13-inch fuselage extension to hold more fuel and the Westinghouse APG-66 radar. The wing area was increased by 20 square feet and an additional underwing hardpoint was fitted.
The first YF-16 was brought out on December 13, 1973 to make its first test flight at Fort Worth and was air freighted by C-5A to Edwards AFB on January 8, 1974. It was an .....
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History Of The Prostate Gland
.... the growth of the cancer
occurs very slowly and is usually limited within the
prostate gland. Later on in the course of the illness, the
prostate gland cells can spread around the body,
particulary to the bones where they can paues pain and
disability. Estimates show that the cancer may have been
growing in some men for up to 10 yearsbefore it causes
symptoms and is diagnosed. Some men develop symptoms
whereas others do not. In those who that do, the following
symptoms are co .....
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Hiv
.... $2,000. Therefore, if the AIDS epidemic is not controlled, its cost to American taxpayers will become overwhelming.
I feel that the effects of the epidemic on society at large are increasingly evident. AIDS tests are now required in the military services. Various proposals have been made for mandatory screening of other groups such as health-care workers. A number of nations, including the United States, have instituted stringent rules for testing long-term foreign visitors or potential immigrants for .....
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Hot Zone
.... the virus rips through our bodies with no thought, mechanical reproducers who sabotage our cells and used them as incubators until their "offspring" replicate to the point the cell wall bursts, releasing hundreds of new virus particles. Literally thousands of these "killers", as humans see them can be held on the point of an ink pen. The question the book seems to raise later on, however, is who is the real impostor; the virus on the human race, or the human race on its home for the past millions o .....
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How Dams Affect Salmon Migration
.... wild salmon and steelhead returned to their native spawning grounds. It is now estimated that only 2.5 million return. Of these 2.5 million fish, only one fourth of them ever make it back to their original spawning grounds. These remaining fish are raised in hatcheries. Salmon must be able to migrate upstream from the ocean to reproduce in fresh water. Hydroelectric dams have essentially changed the migration pattern of fish. Dams alter the temperature and flow regimes of rivers; they are barriers to migr .....
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How Eagles Live
.... name of aquila chrysaetos and is named for its golden appearance. It is a member of the hawk family. It has a wingspan of six and a half to seven and a half feet, and can live to be thirty or more years old. The adult golden eagle is evenly dark below, or with a lighting at the base of its tail. An immature golden eagle shows a white flash in the wing at the base of the primaries, and a white tail with a broad dark terminal band.
The golden eagle is found in the mountainous regions of the Nor .....
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How Low Self-esteem Effects Anorexia
.... is. Many factors play a role,
including self-esteem. Children need to be showed love and
caring in order to gain the appropriate levels of
self-esteem.
Anorexia is a big issue in society today.
Girls and boys are developing anorexic symptoms as
young as age five. While anorexia can be detected
in boys, girls, men, and/or women of all ages, “the
most common ages of onset [remains] between
thirteen and twenty-two.”(Levenkron,1)
Anorexia nervosa is an eating .....
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