|
Enter your query below to search our database containing over 50,000+ essays and term papers
Search results 141 - 150 of 291 matching essays
- 141: Jonas Salk
- ... will be infecting people in the up and coming flu seasons. Lastly, Jonas Salk is now working on a vaccine for the polio of today, AIDS. He is working on a vaccine made of killed viruses, but so far he has not acquired any substantial results. In the summer of 1994, the United States did conduct a large-scale test of Dr. Salk's proposed AIDS vaccine. This vaccine has shown ... stay at Pittsburgh University, the world was suffering immensely from the polio disease. Dr. Salk was named a hero when he found the vaccine for it. He also helped in the suffering from the flu viruses. Dr. Salk has attributed to the polio free Western Hemisphere of today, yet another problem has arisen in the post-polio syndrome ailment. Now, Jonas Salk is working on a vaccine for the dreaded disease ...
- 142: Environmental Pollution Concerns Come To Forefront
- ... the water on to homes. But they admit their open reservoirs expose the water to contamination by disease-causing agents for which there are no health standards or required testing in small water districts: giardia, viruses and cryptosporidium. "We are more vulnerable because they are not covered," said Marjie Lopez Read, EID water quality superintendent, "even though the treatment is complete at the water plants." William Hetland, EID general manager, said ... literally millions of Cryptosporidium organisms." Water quality experts say chlorine does not kill cryptosporidium, an intestinal parasite that was responsible for an outbreak that infected 400,000 people in 1993 in Milwaukee. Chlorine generally kills viruses but does not completely kill giardia. El Dorado County health officials say that so far this year they documented six cases of giardia and two of cryptosporidium, some of them from Lake Tahoe, which is ...
- 143: Our Radiant Planet- Depletion of the Ozone Layer
- ... chronic damage linked to UV radiation is cataracts. Exposure to UVB has been shown to suppress a portion of the human immune system important as the skin's defence against infectious agents such as bacteria, viruses and chemicals. The impact of UVB on human disease works in three levels. One is the increase in activation of viruses, the second is the decrease in the immune system to respond to viral and bacterial infection, and the third is the decrease in tolerance to chemical exposure. So what about the ecosystem? All animals and ...
- 144: Revolutionary QM212
- Revolutionary QM212 Abstract: A new process in bio-chemistry involves the manipulation of molecules to defeat diseases, viruses, chemical warfare, and to reduce the cost of bio-chemical engineering. This new process is refined in that the researcher utilizes new computer technology to model the behavior of certain molecules to insert a "slot ... unwanted foreign objects. These unwanted foreign objects are discarded by fixing the slot to fit the objects. This slot can be customized, through manipulation and modelling, to fit many different objects. Therefore, objects such as viruses, poisonings, or bacteria, could be jetted out of ones body. This aspect could one day benefit millions of people around the world. Chemical Process: Teams from universities successfully inserted instructions for building an anti-fluorescein ...
- 145: Fire Ants
- ... to genetically experiment with species and continues to connect the remote areas of the world with faster and more efficient means of moving food and goods. Occurrences of accidental transportation of troublesome pests, bacteria, and viruses will also increase. The fire ant while costly and annoying wont cause the absolute destruction of life as we know it. Fire ants are however a reminder that ecosystems are a delicately balanced environments ... States that reside in South Africa. As mankind destroys the rain forests of South America for cattle grazing, he has released things like the Hunta virus, and the Ebola virus in Africa. Both of these viruses could rapidly destroy populations. Mankind has made tremendous leaps in knowledge and technology during this century. If this use of that technology is not metered and controlled intelligently it may be the downfall of the ...
- 146: Chemical and Biological Weapons
- ... s technologically advanced world, genetics is quickly becoming a threat in biological weapons. Scientists are using genetics to develop new deadly diseases that would be used to harm an opposing country. The new bacteria and viruses that the scientists already have the ability to develop, could be used against hostile countries. Bacterias and viruses could be used to kill crops and a countrys environment, thereby destroying their food supply. Or, even more effectively, spreading deadly diseases to the countrys citizens and soldiers. By February 14, 1970, the ...
- 147: AIDS and Its History
- AIDS and Its History Professor Luc Montagnier, who discovered the human immunodeficiency virus (HIV) in 1983, and Professor Peter Duesberg, who first mapped the genetic structure of such viruses, are to challenge the orthodox view that HIV is the exclusive cause of AIDS at an "alternative" AIDS conference in Amsterdam next month. Montagnier said last week at the Institute Pasteur in Paris, where he ... or having HIV disease, is not the same as having AIDS. Many people are HIV-positive but don't get sick for many years. As HIV disease continues, it slowly wears down the immune system. Viruses, parasites, fungi and bacteria that usually don't cause any problems can make you very sick if your immune system is damaged. These are called "opportunistic infections." You might not know if you get infected ...
- 148: Antibiotics and Their Role In Society
- ... are chemical substances produced by various species of microorganisms and other living systems that are capable in small concentrations of inhibiting the growth of or killing bacteria and other microorganisms. These organisms can be bacteria, viruses, fungi, or animals called protozoa. A particular group of these agents is made up of drugs called antibiotics, from the Greek word anti "against" and bios "life". Some antibiotics are produced from living organisms such ... the feed of animals. Chickens and beef cattle, for example, can be fed with these additives for better weight gains and to speed their growth. Current work in antibiotics is largely in the area of viruses. Although some antivirals are available, most have toxic effects so severe that they can be used only in life-threatening diseases where the negative effects are the lesser danger. Preliminary studies, however, are reporting success ...
- 149: A Guide To Indoor Air Quality
- ... about the smoking policies of the day care center providers, schools, and other care givers for your children. The policy should protect children from exposure to ETS. BIOLOGICAL CONTAMINANTS Biological contaminants include bacteria, molds, mildew, viruses, animal dander and cat saliva, house dust mites, cockroaches, and pollen. There are many sources of these pollutants. Pollens originate from plants; viruses a
- 150: What Causes Infectious Diseases to Strike?
- ... body, as does Ebola and also like Ebola, the virus only occurs in Africa. Marburg outbreaks have occurred in Uganda, Zimbabwe, south Africa and Kenya. Marburg and Ebola are both members of a group of viruses which are called Filoviruses. These viruses all cause hemmoragic fevers and are very similar in structure. Since 1970, the year preceeding the first Marburg attack and five years before the first Ebola outbreak, .9 billion hectacres of the earths forests have ...
Search results 141 - 150 of 291 matching essays
|
