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Papers on Science and Nature
AIDS: Is It A Modern Plague?
Number of words: 924 | Number of pages: 4.... that proper medication and rest will take care of the matter.
However there is a much more severe and indiscriminate tyrant, with enormous corrupting influence, capable of infiltrating all of civilization. Scientifically, it is a submicroscopic pathogen consisting of a particle of nucleic acid, enclosed in proteins, and able to replicate only within a living cell. Socially, it is responsible for an enormous amount of chaos and fear in the world today, and pronounces the human fault of ignorance. Can it be considered to be a modern plague?
This complex and confusing king of all tyrants is called Human Immunodeficiency Virus, or .....
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Electric Charge
Number of words: 587 | Number of pages: 3.... electricity to contrast then with the moving charges in an electric current.
How can you disturb the balance of charge on objects so they exert electric force? The easiest way is the same way the ancient Greeks did it – by rubbing the 2 objects together. Rubbing neutral objects together allows charged pieces of matter to move from one object to another.
The invisible bits of negatively charged matter that move between objects are called electrons. The words electron, electricity, and electronics all come from the Greek word for amber – elektron. The transfer of electrons explains the electric force that attracts the .....
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Ecology Asssignment
Number of words: 1414 | Number of pages: 6.... in a certain area because it would take too much time. Instead of actually counting the number of individuals in an area they would compare it with other areas where they know the population of individuals. In this way they can roughly estimate the number of individuals in a certain area.
4. What might happen to a rabbit population in an area where there are no predators?
If there were a few rabbits in an area with no predators they would over-populate and cause serious damage to the ground. Since they are fast at reproducing there is nothing to control the population level as the predators do so they damage the eco-sy .....
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Advanced Green Builder Demonstration House
Number of words: 1518 | Number of pages: 6.... front of the house in such a way that it creates an entranceway into the house that lets visitors know the occupants concern for the environment. Along side the huge silver cisterns is the waste water cleaning system that was designed to be as aesthetically pleasing as possible through the use of indigenous plants. The plants gradually clean the wastewater as it passes under their roots. Along with cleaning the water and being aesthetically pleasing, the plants also create a pleasant atmosphere as the water in the plants help in the calming of the harsh Texas climate. Although hidden out of view, the house is roofed with ph .....
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Cloning
Number of words: 1931 | Number of pages: 8.... called nuclear transplantation, is an extension of
research that had been ongoing for over 40 years.
Up until now, scientists thought that adult cells could not be “reprogrammed” to behave
like a fertilized egg and create an embryo, but the evidence obtained by Dolly’s success prove
otherwise. The issues of cloning have been around for a long time, starting with the publication of
Joshua Lederberg’s 1966 article on cloning in the American Naturalist, and the publics interest
has been perked by many sci-fi books, films, and movies including Aldous Huxley’s 1932 novel
“Brave New World,” 1973’s “Sleeper,” .....
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New Technologies In Television
Number of words: 1794 | Number of pages: 7.... impact on the market. Estimates vary from about 600,000 to 1,000,000 console players ("living room" boxes used strictly to play movies) sold in the United States through the end of 1998. So far, the number of DVD drives in PCs is far smaller.
DVD technology can handle one or two layers of data per disc side. That makes for four sub varieties of DVD-ROM, the read-only version of this technology: DVD5 (single side, single layer) with a 4.7GB capacity; DVD9 (single side, dual layer), 8.5GB; DVD10 (dual side, single layer), 9.4GB; and DVD18 (dual side, dual layer), 17GB. With all these competing standards, a group has been for .....
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Genomics
Number of words: 764 | Number of pages: 3.... $100 billion. A near merger between Glaxo and SmithKline would have created the world’s third largest company, with a budget large enough to fund the estimated cost of sequencing the human genome. Its capitalization would have been larger than the annual gross national product of some 143 of the world’s nations (Enriquez 925).
These mergers also allow the companies to combine their knowledge pools to gain an edge in the race to acquire licensing agreements and patents. In 1991 the U.S. Patent and Trademark Office got 4000 requests for patents on gene sequences. In 1996 the requests for patents on gene sequences shot up t .....
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Mosquitoes
Number of words: 316 | Number of pages: 2.... entire egg to adult cycle in 10 to 14 days, depending on the temperature, with shorter times during warmer periods. Some species can even reach the adult stage in as little as two to three days.
Why Do We Need ?
Mosquitoes are very abundant. Many of the eggs that mosquitoes lay in the water, and never become adults. They are eaten by fish, insects, frogs, toads and other amphibians. They are a major food source for some of these creatures. Once mosquitoes become adults, they become the food source for bats, dragonflies, flycatcher birds and many other insects and birds. Mosquitoes are annoying, but they do serve a purpose .....
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Chicken Pox
Number of words: 397 | Number of pages: 2.... 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 precautions a person can take
is to stay out of contact with people that are currently .....
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Hepatitis B
Number of words: 1329 | Number of pages: 5.... (e. g. needle stick).
Consequences of HBV Infection
HBV causes acute and chronic hepatitis. The chances of becoming chronically infected depends upon age. About 90% of infected neonates and 50% of infected young children will become chronically infected. In contrast, only about 5% to 10% of immunocompetent adults infected with HBV develop chronic hepatitis B. In some individuals who become chronically infected, especially neonates and children, the acute infection will not be clinically apparent.
Acute hepatitis B can range from subclinical disease to fulminant hepatic failure in about 2% of cases. Many acutely infect .....
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