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Search results 171 - 180 of 291 matching essays
- 171: Water Pollution: Is it as big of a problem as we think?
- ... very high in both inland and marine waters. All different types of water pollution are contributing factors in this problem. Here are some things that are associated with pollution: Pathogens: Pathogens are disease causing bacteria, viruses, and protozoa. They usually come from human sewage. As pathogen numbers increase, so does the risk of human health. Biochemical Oxygen Demand: Organic wastes that decay in a body of water. decrease the amount of ...
- 172: Mad Cow's Disease and Mad Man
- ... simply by coming in contact with it, causing a chain reaction. If this theory is true, it will explain why TSEs produce no detectable immune response or inflammatory reaction in infected animals. Unlike bacteria or viruses which introduce foreign proteins into the body, prions are believed to depend on the infected animal's own proteins. Lacking foreign proteins, prions are invisible to the victim's immune system. Prions also appear to ...
- 173: Diabetes
- ... is called an autoimmune response and is the actual reason a person might get diabetes. The reason for this autoimmune response is not yet known. Other factors linked to type 1 diabetes are genetics and viruses. In type 2 diabetes, obesity is the single most important cause. Diabetes involves a hormone action, which varies from person to person. So that means, no two people's disease are quite the same. Because ...
- 174: Why Exercise is Important
- ... who exercised moderately had half the number of colds and sore throats of the least active subjects. His conclusion: a dose of aerobic exercise raises the immune systems ability to recognize invading bacteria and viruses. It doesnt matter what form of exercise you do, he said. The things that matter are the intensity and duration. Just dont overdo it. Moderate exercise in any form for 30-60 minutes ...
- 175: Computer Crime
- ... re-connect with the user (see figure 1). This prevents unwanted persons from logging on to a network. Common sense is often the best defense against computer crime. Simple things like checking and disinfecting for viruses on a regular basis, not sharing your password or giving out your credit card number on online services (ie: Internet). Also, employers can restrict access employees have to computers at the place of employment. This ...
- 176: Leukemia
- ... will decrease and clotting will not occur, Researchers think a change in genetic structure causes leukemia. Changes in gene structure could be caused by environmental problems. Some of these problems could be: birth defects, radiation, viruses, and chemicals. Leukemia is not inherited and is not contagious. There are two major types of Leukemia, Lymphocytic and Granulocytic. In Lymphocytic Leukemia white blood cells known as Lymphocytes, which are made in the Lymph ...
- 177: Lymphoma
- ... are classified by the US National Cancer society as aggressive or fast multiplying or indolent, slow multiplying. (Lymphoma Information Network) The lymphatic system protects the body from agents that could cause disease like bacteria or viruses. Within this system, that consists of organs such as the spleen and tonsils, there are organs that destroy foreign agents, those organs are called lymph nodes. The lymphatic system works as follows; the bone marrow ...
- 178: Evaluating Methods of Contraception
- ... is strong, and flexible. Because a condom prevents semen from entering the vagina, it is a very effective barrier to pregnancy. Except for those made of animal skin, condoms also act as a barrier to viruses and bacteria, protecting both partners from sexually transmitted diseases such as syphilis, chlamydia, gonorrhea, genital warts, genital herpes, candidiasis, trichomoniasis, and AIDS. Next to abstinence, condoms are the best protection against AIDS. To improve their ...
- 179: AIDS
- ... antibody test, the case definition of AIDS was updated to reflect the role of the virus in causing AIDS, but the scope of the definition remained almost the same. Being one of the most fatal viruses in the nation, AIDS (Acquired Immune deficiency Syndrome) is now a serious public health concern in most major U.S. cities and in countries worldwide. Since 1986 there have been impressive advances in understanding of ...
- 180: What Are Brain And Spinal Tumor
- ... a mystery. Scientists do not know exactly why cells in the nervous system or elsewhere in the body lose their normal identity such as (nerves, blood, or skin) grow uncontrollably. Possible causes under investigation include viruses, defective genes, and chemicals. Metastatic tumors occur when the cancer cells break from tumors in other parts of the body, travel throw the blood stream, hook up to other tissues and make new tumors inside ...
Search results 171 - 180 of 291 matching essays
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