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» Browse Science and Environment Term Papers
Boiling Water
Number of Words: 340 / Number of Pages: 2
... at which this occurs is 100 C or 212 F. In the very early stages of heating, you may see some small bubbles even though the water is only warm. This is some air that is dissolved in the cold water and is being expelled by the heating. This is not boiling. As the water nears the boiling point, some areas of the container close to the heat source may be hot enough to cause some boiling in that area which produces some local bubbles. To be sure that all of the water is "at the boiling point," you should wait until there is a large amount of bubbles rising to the surface. The bubbles in are ...
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Ehrlich's Population Bomb
Number of Words: 1362 / Number of Pages: 5
... as population increases
those resources will soon be depleted. Ehrlich uses historical population
research to lead to the conclusion that in 90 years the population could be well
over the earths carrying capacity. In third world countries where population
control is rarely used population, pollution, and scarcity are becoming ever
increasing problems. Roughly 40% of the population in third world countries are
children 15 years or older. Ehrlich explains that if population growth
continues at this rate older generations will find themselves without adequate
food and medicine. Near the end of the c ...
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Effects Of Smoking 2
Number of Words: 498 / Number of Pages: 2
... a teacher, someone who is interviewing you for a job, or simply someone you are trying to get romanticly involved with.
Then there are the more harmful and insidious side effects of smoking. Such as lung cancer, cancer of the throat, and other health problems too numerous to mention. Lung cancer has become very common amoung smokers and it is known fully by most smokers that they are getting cancer sooner or later as long as they continue to smoke as if it is an ineviatble fate. This is not only so to the smoker but the second hand smoke that others breathe in around a smoker is just as detrimental ...
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Chicken Pox
Number of Words: 397 / Number of Pages: 2
... usually not needed to make a
diagnosis but after the symptoms appear it is still best to
make sure it is the chicken pox and not something much
worse. The physician can easily make a diagnosis by
checking the basic symptoms. Chicken pox is controlled by keeping the infected
person and anything the infected person has come in
contact with away from any people who have never
become infected. There is not really a treatment, just
medicine so that the rash does not itch. The disease blows
over by itself.The disease cannot really be prevented because almost
everybody gets it. The only precautio ...
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Solar Energy - The Energy Of The Future?
Number of Words: 332 / Number of Pages: 2
... as a large magnifying glass. The solar furnace
takes the sunlight from a large area and by the use of lenses and mirrors
can focus the light into a very small area. Very elaborate solar
furnaces have machines that angle the mirrors and lenses to the sun all
day. This system can provide sizeable amounts of electricity and
create extremely high temperatures of over 6000 degrees Fahrenheit.
Solar energy generators are very clean, little waste is emitted
from the generators into the environment. The use of coal, oil and
gasoline is a constant drain, economically and environmentally.
Will solar e ...
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Muscular Dystrophy
Number of Words: 1991 / Number of Pages: 8
... the extracellular proteoglycan, [Alpha]-dystroglycan, which binds to merosin in muscle fiber basal laminae, as well as a number of other integral and cytoplasmic membrane proteins: [Alpha]-dystroglycan; [Alpha]-, [Beta]- and [Gamma]- sarcoglycans (see Figure 1). The DAGC provides a physical link and, potentially, a signaling pathway between the extracellular matrix and the internal scaffolding of the muscle cells. Mutations in the Duchenne gene result in dystrophin deficiency, which constitutes the pathogenic basis of DMD. Dystrophin is either absent or severely deficient in a person with DMD. W ...
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Flourescence In-situ Hybridisation And Its Advantages
Number of Words: 235 / Number of Pages: 1
... 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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Effects Of Excessive Pesticide
Number of Words: 5605 / Number of Pages: 21
... human population needs to be fed from an always shrinking base of agricultural land, and the substantial damage that can be inflicted by pests (e.g. insects, diseases, weeds, rodents, birds) on crops is the margin between a good harvest and a bad one. Pests can reduce the quality of a harvest as well as its quantity. Since the quality of food is increasingly important to consumers, a pest could reduce the value of a crop or make it unsaleable. But it is important to keep in mind that pests are not the only cause of yield
reduction and of lower quality produce: factors such as soil fertilit ...
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Effects Of Smoking
Number of Words: 385 / Number of Pages: 2
... person, or being a morning person, or liking to go to the movies. Smoking becomes a part of who and what you are, An addict. It amazes me the number of people who smoke cigarettes who would never smoke a "marijuana" cigarette. They say "Oh no, that’s drugs" or "I’m not a dope fiend". Sorry pal tobacco is a drug and if you're a smoker, you are also a drug addict. The sooner you accept it, the sooner you will be able to get well again and kick the habit.
Smoking, like any addiction, especially addictions that involve chemicals, is a sickness. Fortunately it is a sickness that can be cured. ...
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The Language Of The Cell
Number of Words: 1502 / Number of Pages: 6
... is the
control center of the cell. Between the nucleus and the membrane, there is a
polysaccharide matrix called the cytoplasm, where organelles can be found. The
organelles are attached to a framework. The cell’s cytoskeleton.
Every living cell has the ability to detect signals from it’s
environment. The signals are usually in the form of chemical molecules, that
the cell has learned to recognize. The cell decodes these molecules into
messages, and acts upon them. The cell has a “language”. Signals and messages
are carried by particles of matter that have a very low energy requirements.
Ther ...
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