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» Browse Science and Environment Term Papers
The Laser
Number of Words: 981 / Number of Pages: 4
... for Light Amplification by Stimulated Emission of Radiation. What does
that mean? Basically a laser is a device which produces and then amplifies light
waves and concentrates them into an intense penetrating beam.
The principles of the laser (and it's cousin the maser) were established
long before these devices were successfully developed. In 1916 Albert Einstein
proposed stimulated emission, and other fundamental ideas were discussed by V.A.
Fabrikant in 1940. These ideas, followed by decades of intensive development of
microwave technology set the stage for the first maser (a laser made up ...
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Roswell Incident
Number of Words: 5103 / Number of Pages: 19
... in the middle of the desert. Here was a vast
open land where one could see miles around. On this afternoon something very
strange was about to happen. In the clear skies of Roswell a very large craft
ended its flight. Was this a weather balloon or an Unidentified Flying Object?
There were many eye-witness reports of alien creatures lying next to
their destroyed crafts. One or two may have survived for a few days. The
military quickly cornered off this area, removing the particles and the bodies.
A local funeral director got a call for numerous child size coffins. He was to
deliver them to the ...
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The Effects Of Hurricane Gilbert
Number of Words: 1641 / Number of Pages: 6
... Gilbert had extremely powerful winds that reached 160 knots which is about 175 mph and gusts up to 121 mph (Stengel 18). At 10, 000 feet, Gilbert's Counter clockwise winds reached up to 200 miles per hour, and at ground level the winds were around 175 mph(Stengel 17). With winds that strong, almost nothing could stop that storm. When the winds began to spread out over a large area, they stirred the Atlantic waters and brought cool water underneath the earth's surface; therefore, causing a reduction in the amount of rapid showers and thunderstorms (Sheets 1).
Water was another contributing fa ...
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Fetal Alcohol Syndrome 2
Number of Words: 882 / Number of Pages: 4
... the risk of damage to the baby. "The Syndrome 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 ...
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Darwin’s Finches
Number of Words: 964 / Number of Pages: 4
... giraffe (Giraffa cameloparadalis reticula). These two subspecies have formed on different sides of the Tana River in Kenya. They are phenotypically distinct, and can only produce fertile offspring in zoos.
Sympatric speciation occurs when two segments of the same species occupy a geographical area without interbreeding. Each new species, or subspecies, adapt to a specific environmental niche (adaptive radiation).
Two segments of the same species Adapted to different niches
An example of sympatric speciation is the genus Rhagoletis. These are a group of small flies whose larvae feed o ...
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Amyotrophic Lateral Sclerosis
Number of Words: 3526 / Number of Pages: 13
... usually appear in individuals between the ages of 40-70, though the disease has been reported in both younger and older persons. Survival after the confirming diagnosis is, on average, two to five years. Progression of ALS varies with each individual; therefore, some will live longer--up to 10 years, and about five percent will exceed 12 years. In some cases, the disease seems to plateau. Many patients are able to live productive and satisfying lives especially with the use of assistive devices for daily living, and later in the disease, augmentative communication equipment.
Men and women are affect ...
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Cystic Fibrosis
Number of Words: 383 / Number of Pages: 2
... mucus to accumulate in the patients lungd. High level of salt in lung cells draw water out of the mucus causing it to thicken.The level of salt in a cell is determained by the movement of ions across the cell membrane.Ions are carried across call memebranes by protein channels embedded in the cell membrane. Since the stucture and functions of proteins are determained by genes problems with ion transport can be assumed to have a genetic basis. In 1989 an American Canadian research team found thre defect in the gene called the transmembrane conductance regulator gene ,produces a protein that usually ...
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Genetic Cloning
Number of Words: 1925 / Number of Pages: 7
... the perceived gap between cloning and our nature are not so distant, as cloning has been the means by which humankind has cultivated flora for a millennia. In addition, selective breeding has been the means by which humankind has manipulated fauna for its own ends. In both cases genetic manipulation does serve humanity on many practical levels.
Secondly, humankind has genetically engineered many species through selective breeding. The potential of cloning in food production is, if not unclear, certainly unknown to most people. Selective breeding of flora and fauna has continued for eons. Only bre ...
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Klinefelter Syndrome
Number of Words: 813 / Number of Pages: 3
... by the law of nature in which you are randomly chosen in its specific frame of how many times it happens, whom it effects, and how it happens. There is really no specific frame in which it invariably happens. It is known through that it happens during the process of meiosis in which chromosomes split.
WHO IT AFFECTS???
Klinefelter Syndrome only occurs in males. This is so because females have a similar condition called Turner’s Syndrome who generally has the same side effects as Klinefelter Syndrome. Instead of having one X chrosomes they have two. Where as in Klinefelter patients are ...
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Attention Deficit Disorder
Number of Words: 703 / Number of Pages: 3
... i. Forgetful in daily activities
2. An individual experiencing six of the following characteristics defines ADHD – hyperactive/impulsive type:
a. Fidgets with hands or feet or squirms in seat
b. Difficulty remaining seated
c. Runs about or climbs excessively (in adults may be limited to subjective feelings of restlessness)
d. Difficulty engaging in activities quietly
e. Acts as if driven by a motor
f. Talks excessively
g. Blurts out answers before questions have been completed
h. Difficulty waiting in turn taking situations
i. Interrupts or intrudes upon others
(Internet ...
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