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» Browse Science and Environment Term Papers
Protein Synthesis
Number of Words: 770 / Number of Pages: 3
... structure. This is where the primary structure is repeated folded so that it takes up less space. There are two types of folding, the first of which is beta-pleated sheets, where the primary structure would resemble continuous spikes forming a horizontal strip. The second type of folding is an alpha helix, which goes vertically forming a wavy line. An alpha helix is in the same shape of one strand of DNA. These new formations are held together by hydrogen bonds. The third level is the tertiary structure. The tertiary structure of a protein is a contorted secondary structure being twisted and fol ...
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Environmental Isuues
Number of Words: 1272 / Number of Pages: 5
... so widely used and are beginning to become a contaminant in the environment. When used so frequently, antibiotics are found in the sewers, septic tanks, and even receiving waters. With antibiotics being so abundant in these places, the microbes here are now becoming resistant. With all of the sterilization and sanitation precautions, we would not expect to come in contact with these microbes. Reality is, we do. We come in contact with these microbes and sometimes become sick. Being sick means another trip to the doctor; only this time, the antibiotics that the doctor prescribes won’t wor ...
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Atom And Qi
Number of Words: 2055 / Number of Pages: 8
... qi researchersˇ¦ best tool. In addition, while qi and the atom were both conceived by ancient philosophers, the notion of the atom was better developed by scientists than the idea of qi. Therefore, by looking back at the historical progression towards a belief in atoms and the deduction of their structure, we know how scientists built up the atomic theory. Consequently, the concept of historical progression will help us understand why the notion of qi is hard to define by physicists, and how it could be developed into a scientific theory.
HISTORICAL PROGRESSION TOWARDS A BELIEF IN ATOMS
The conc ...
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Extra Terrestrial
Number of Words: 404 / Number of Pages: 2
... only lead to more curiosity among the people.
So far, in spite of a concerted effort by not only the U.S. government, but other governments worldwide to discredit the whole notion of unidentified flying objects; in spite of the ridicule heaped on anyone who even hints they may have seen something remotely resembling a UFO; in spite of official debunkings and even threats, people still step out of the shadows of their own fear to tell their amazing stories.
(Seller, ix)
People do talk, and every time something is being repeated a couple words are being added. Hence, not to many peopl ...
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Air Pollution
Number of Words: 512 / Number of Pages: 2
... been many attempts at stopping air pollution. The Clean Air
Acts were effective for a little while. They made using some polluting
substances illegal. This did not work because people simply did not listen.
Solar Energy is another attempted solution. This type of energy is good
because it is an alternative energy source to coal and other polluting fossil
fuels. The problem with solar energy is that it is extremely expensive, but it
has been used extensively throughout the world.
One of the more effective ways of eliminating air pollution is the
making of electric cars. The use of these electric ...
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Effect On Pot
Number of Words: 1467 / Number of Pages: 6
... atrophy in the brain at all. Furthermore, it should be
noted that Heath's work was sharply criticized for avoiding safeguards of bias and reporting "changes" that occur normally in the
mammalian brain. Wu et al. found a correlation between cannabis use and low sperm counts in human males. This is misleading because a
decrease in sperm count has not been shown to have a negative effect on fertility and because the sperm count returns to normal after
cannabis use has stopped.. Another claim made was that cannabis causes chromosome breakage. The primary source for this are studies
that w ...
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Autism 2
Number of Words: 1079 / Number of Pages: 4
... is different and there is no set type or typical person with autism. This is because autism is a spectrum disorder, meaning that symptoms and characteristics of the disorder can present themselves in a variety of ways, from mild to severe. Usually children with autism have deficiencies in both verbal and non-verbal communication. Their language develops slowly or not at all and they have very short attention spans. They often lack social skills and will spend time alone, rather than with others. In more severe cases, children have unusual reactions to physical sensations such as being overly se ...
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Fermentatiom By Yeast
Number of Words: 1317 / Number of Pages: 5
... INTRODUCTION
Fermentation is an anaerobic process in which fuel molecules are broken down to create pyruvate and ATP molecules (Alberts, 1998). Both pyruvate and ATP are major energy sources used by the cell to do a variety of things. For example, ATP is used in cell division to divide the chromosomes (Alberts, 1998).
By taking a Carbon Dioxide, rich substance and mixing it with a yeast, solution fermentation will occur, and then it could be determined if it is a good energy-producer. In this study glacatose, sucrose, glycine, glucose, and water were used to indicate how fast fermentati ...
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Extinction Of Dinos
Number of Words: 392 / Number of Pages: 2
... bomb and becomes a billion times as bright as our own sun. All kinds
of matter and radiation are blasted into space. This matter and radiation travels
through space at nearly the speed of light (186,000 miles per second)
Now, if one of these supernovae were to occur within about 130 light years
of Earth, some scientists feel that life on earth would be drastically affected.
Since a light year is the distance light travels in one year, 130 light years is about
760,000,000,000,000 (760 quadrillion miles!).
So, suppose a supernova had occurred sixty-five million years ago within 130
light years ...
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Haloes Forecast Storms
Number of Words: 520 / Number of Pages: 2
... in the direction of the sun's light. Usually this is
22 degrees. Since the sun is 1/2 of a degree across, the radius of the
halo is 44 sun-widths. Occasionally you may see a second halo at 46
degrees from the sun (that is, with a radius of 92 sun-widths). This is
produced by sunlight passing through both the side and bottom of each
crystal. Moonlight will also produce a halo, around the moon, with the
proper layer of cirrostatus.
Another common optical effect is known as "mock suns" or "sun dogs" or
"parhelia" (Greek for "with the sun"). These bright spots on either side
of the sun, outside of ...
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