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Science and Nature Term Papers and Reports |
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The Problem With The Amount Of Trash In The United States
474 Words - 2 Pages.... According to the documents, in 1990, Americans
generated 269 million tons of municipal waste which is an average of 1.089
tons per person. In 1997, this had increased to 340 million tons which is
an average of 1.272 tons per person and this amount is getting higher and
higher each year and we need to put a stop to this.
Trash is not a problem far from us, it is right here in our
community. People are throwing things on the floor all the time and
recycling has not been done as much as it should be. In New York city we
have one of the world’s most largest and most crowded landfills which is
proven in the article. Fresh Kills landfill, on Staten Island is extremely ....
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The Threat Of Nuclear Energy
3057 Words - 12 Pages.... turned to steam which creates tremendous amount of pressure in the reactor core. Above the reactor core there is a 5 foot thick lead plate and above that there is a meter thick floor composed of iron, barium, serpentine, concrete, and stone. The exploding steam fires the floor up like shrapnel. The metal plate goes through the four foot thick concrete roof like butter and reaches and altitude of sixty meters. You can hear ripping, rending, wrenching, screeching, scraping, tearing sounds of a vast machine breaking apart. L. Ray Silver, a leading author who covered the disaster at Chernobyl, said that within the core, steam reacts with zirconium to produce that first explosi ....
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Dementia
4290 Words - 16 Pages.... of AD can range anywhere from 1.5 to 15 years with an average of about 8.1 years (Terry , 1988). AD is usually divided into three stages mild, moderate, and severe. Throughout these stages a specific sequence of cognitive deterioration is observed (Lezak, 1993). The mild stage begins with memory, attention, speed dependent activities, and abstract reasoning dysfunction. Also mild language impairments begin to surface. In the moderate stage, language deficits such as aphasia and apraxia become prominent. Dysfluency, paraphasias, and bizzare word combinations are common midstage speech defects. In the severe stage the patient is gradually reduced to a vegetative sta ....
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Cyclones
547 Words - 2 Pages.... Driven by the fast winds, the Cyclone can move at up to 50km/h. While all this is happening a distinct "eye" is forming in the centre of the Cyclone. This "eye" unlike the rest of the Cyclone is completely calm and is not windy at all.
Cyclone Tracy was the most destructive cyclone recorded to hit Australia since white settlement in 1788 (the Bathurst Bay killed 300 people but didn't reach land). Cyclone Tracy hit the coastal city of Darwin on Christmas Day 1974. Although people had warning on New Year's Day about Cyclone Tracy, they were busy preparing for Christmas and thought that the cyclone would pass away just like Cyclone Selma had done three weeks before. Cyc ....
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Cloning 2
1510 Words - 6 Pages.... the lay audience. On the other hand, the reports constructed from existing information are broadly based, pulling information from several sources and adapting it for target audiences. Such articles tackle general biomedical issues and convey the information to an audience that, for the most part, lack a high level of scientific knowledge. To make the information more understandable for the target audience, authors substitute in less complex vocabulary words, summarize difficult concepts, and often utilize attractive visual aids. Authors strive to communicate issues to audiences of varying levels of education. In order to accomplish this effectively, authors adapt their wor ....
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Pollution In Eastern Europe
2530 Words - 10 Pages.... Second, the consequences of these environmental problems on the people and environment of the region. Third, the future prospects of the region: what has to be done and the chances of it happening, and what has been done up to this point to indicate what the future holds. Finally, it should be pointed out at this time that the pollution that is discussed here is only related to pollution that directly harms people and the environment they live in, not pollution like carbon dioxide or greenhouse gases or other factors concerned with the global warming issue.
The causes of environmental problems and the actual problems that were caused are the first subject that must be explo ....
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Resonance
524 Words - 2 Pages.... air meet the
molecules of oncoming air forming a node at the closed end. When the air
reaches the open end, the reflected compression wave becomes a rarefaction. It
bounces back through the tube to the closed end, where it is reflected. the wave
has now completed a single cycle. It has passed through the tube four times
making the closed tube, one fourth the length of a sound wave. By a continuous
sound frequency, standing waves are produced in the tube. This creates a pure
tone.
We can use this knowledge of one fourth wavelength to create our own
demonstration. It does not only have to be done using wind, but can also be
demonstrated using tuning forks. ....
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Flourescence In-situ Hybridisation And Its Advantages
235 Words - 1 Pages.... and the tests are easier to do. In the future, FISH will be able to
decrease the chances of a miscarriage by using samples of maternal blood instead
of amniotic fluid. The problem with amniocentesis is it uses a hollow needle to
take fluid from the mother's uterus. The needle could damage the developing
fetus if not inserted properly. Another advantage of FISH is that the parents
get a much quicker test result than amniocentesis. After the sample is taken,
amniocentesis can take up to three weeks before a test can be administered.
With FISH, a same day result is given, which is much more convenient to the
parents. Additionally, FISH is a simpler process. It use ....
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