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Papers on Science and Nature
Bio-report
Number of words: 541 | Number of pages: 2.... at the same time another receptor cell accepts a potassium which is then released into the cell and the process is repeated until the cell is finished.
c.Facilitated Transport
In facilitated transport a molecule that cannot normally pass through into a cell use a carrier protein to gain access and exit. Basically this allows a cell to acquire molecules that cannot get through it¹s selectively permeable membrane. For example a plant cell requires glucose and the glucose will not fit through the cell membrane. A carrier protein in the plasma membrane will accelerate the movement of the glucose and allow it into the cell. .....
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Air Pollution
Number of words: 475 | Number of pages: 2.... and a variety of complex hydrocarbons, nitrogen oxides, and other compounds. When acted upon by sunlight, these substances undergo a change in composition producing the brown, photochemical smog for which Los Angeles is well known. Efforts to reduce pollution from automobile engines and to develop pollution-free engines may eventually eliminate the more serious problems. In the meantime, however, has driven many forms of agriculture from the Los Angeles basin, has had a serious effect upon the pine forests in nearby mountains, and has caused respiratory distress, particularly in children, elderly people, and those sufferi .....
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Deep Ocean Trenches
Number of words: 926 | Number of pages: 4.... material of the continents.
Deep trench in the sea bed indicating the presence of a destructive margin (produced by the movements of plate tectonics). The dragging downwards of one plate of the lithosphere beneath another means that the ocean floor is pulled down. Ocean trenches are found around the edge of the Pacific Ocean and the northeastern Indian Ocean; minor ones occur in the Caribbean and near the Falkland Islands.
Ocean trenches represent the deepest parts of the ocean floor, the deepest being the Mariana Trench which has a depth of
11,034 m/36,201 ft. At depths of below 6 km/3.6 mi there is no light and very high pressu .....
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The Year 2000 Bug
Number of words: 2317 | Number of pages: 9.... older computers was compressed in any way possible. One way to cut down the size of code was to compress dates to a format only six characters long. So instead of April 14 1999 the date would be compressed to 4/14/99. At the time of this programming this seemed to be the best solution to the space saving dilemma. As we come closer to the millennium we see that this style of programming was a great overlook of programmers. Assuming that the machines would not still be functioning in the year 2000, programmers did not see this as a problem. Now that the year is approaching there are a great deal more of these machines around t .....
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Dna Chips And The Pharmaceutical Industry
Number of words: 1693 | Number of pages: 7.... shelves at the local pharmacy. The effect is that the production of a new drug is almost like a guessing game that may or may not produce any profit. A Company may have a long list of chemicals that could make possible drugs to treat a specific affliction, but by the time they narrow the list down, and do the necessary research and testing, they may have already spent possibly millions of dollars. In the end they may not even be left with a viable drug to market.
BACKGROUND
This section is designed to educate the reader on some of the background information needed to understand the nature of DNA chips, as well as to apprec .....
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Awakenings And Tourette
Number of words: 991 | Number of pages: 4.... patients reacted to outside stimuli, such as a pattern on a floor, a tossed ball, or a television with a maladjusted vertical hold. Finally, Dr. Sayer comes across Leonard as a middle-aged man, some thirty years after he was originally afflicted with the disease. After doing some tests, the doctor comes to realize that there is brain activity and convinces his colleagues that further tests should be considered. He theorizes that a newly developed drug, L-Dopa, developed for the treatment of Parkinson's patients may benefit these patients. He doses Leonard, with no initial success. Once again he theorizes that the acid in the Oran .....
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Medical Revolutions
Number of words: 1010 | Number of pages: 4.... of the army surgeons, usually held a medical school diploma along with an office internship. Little attention was paid to clinical instruction, and in most cases the laboratory was all but forgotten. Further, stethoscopes, thermometers, syringes, and the like were widely used in Europe while many doctors here at home had never seen them let alone used them.
In regard to ability and competence, there is no reason to believe the doctors in the North and the South differed in any significant way. While the North was home to more prestigious medical institutions, the South was learning to become less dependent on the North in this a .....
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The Downy Woodpecker
Number of words: 3725 | Number of pages: 14.... the United States and southern Canada which I have listed
below:
southern downy / Dryobates pubescens Gairdner's woodpecker / Gairdneri pubescens
Batchelder's woodpecker / Leucurus pubescens northern downy / Medianus pubescens
Nelson's downy / Nelsoni pubescens willow woodpecker / Turati pubescens
The downy woodpecker is sometimes reffered to as "little downy."
Behavior Towards Humans
The downy is unquestionably the friendliest woodpecker. A bird lover
in Wisconsin described downies at their feeding station: "The downies will back
down to the suet container on the basswood tree while I sit only a few feet a .....
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Discovery
Number of words: 602 | Number of pages: 3.... She felt that she had a lot in common because they both felt like misfits. Both her mother and grandmother know that Sally doesn’t know much about their Aboriginal heritage, and so therefore tell her that she is Indian.
“Come on, Mum, what are we?
What do the kids at school say?
Anything. Italian, Greek, Indian.
Tell them you’re Indian.”
Eventually Sally find’s out that she is Aboriginal and by finding this out, starts her on a quest for knowledge.
This feeling of having not much idea of who you are may make you want to go and find out the truth. A big example of this is Aborigine’s who were taken from their par .....
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Life Sciences SIG: Gut Issues - Essay About Dietary Fibers
Number of words: 534 | Number of pages: 2.... stream fueling muscles and nerves. Rather, when
eaten they tumble intact through the stomach and small intestine and end up
in the colon where billions of bacterial feed on them - in turn producing
intestinal gas. No wonder, then, that dietary fibre has been unwelcome in
many of history's nicer neighborhoods.
Even 20th century doctors reasoned that since the bulky material
provided not a single nutrient, it would only strain already troubled guts.
Accordingly, they recommended low-fibre diets for patients suffering from
hemorrhoids and other colon disorders often found in the West. But then,
about 15 years ago, the prescrip .....
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