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Science and Nature Term Papers and Reports |
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Astronomy And Space Science: Your Bones In Space
1408 Words - 6 Pages.... tissue cells called osteocytes and a matrix consisting of
organic fibers held together by an organic cement which gives bone its
tenacity, elasticity and its resilience. It also has an inorganic
component located in the cement between the fibers consisting of calcium
phosphate [85%]; Calcium carbonate [10%] ; others [5%] which give it the
hardness and rigidity. Other than providing the rigid infrastructure, it
protects vital organs like the brain], serves as a complex lever system,
acts as a storage area for calcium which is vital for human metabolism,
houses the bone marrow within its mid cavity and to top it all it is
capable of changing its architecture and mass in resp ....
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Ebola
1060 Words - 4 Pages.... can be properly treated , and by performing prompt action to isolate the virus before it has dispersed.
The virus is a member of a family of RNA viruses know as filoviruses. Marburg virus and four viruses: Zaire, Sudan, Reston and Tai are the five different viruses that have been known to cause disease in humans, while Reston only causes disease within monkeys. Filoviruses, arenaviruses, flaviruses, and bunyaviruses are the viruses responsible for causing viral hemorrhagic fevers. All forms of virus of viral hemorrhagic fever begin with fever and muscle aches. These diseases usually progress until the patient becomes very ill with respiratory problems, severe bleed ....
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Hydroponics Growing Without Soil
2420 Words - 9 Pages.... Nutriculture varied from Dr. Gericke’s method in that gravel was used as a rooting medium.
After World War II a number of commercial installations were built in the United States. The majority of these were located in Florida. Most were out of doors and subject to the rigors of the weather. Poor construction techniques and operating practices caused many of them to be unsuccessful and production inconsistent.
How is the quality of the food today affected by the methods of Hydroponics of today?
Body
The growing media that is used for gardening greatly effects the production of the plants. If sand is used as a medium it sho ....
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Acid Rain 7
1863 Words - 7 Pages.... are used to create it. However because of the difficulty and cost of properly disposing of these products they are often emitted into the atmosphere with little or no treatment. The term was first considered to be important about 20 years ago when scientists in Sweden and Norway first believed that acidic rain may be causing great ecological damage to the planet. The problem was that by the time that the scientist found the problem it was already very large. Detecting an acid lake is often quite difficult. A lake does not become acid over night. It happens over a period of many years, some times decades. The changes are usually to gradual for them to be noticed early. ....
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Environmental Studies
1092 Words - 4 Pages.... Protection Agency’s (EPA) recent mandate that Methyl Tertiary Butyl Ether (MTBE) be a required ingredient in gasoline formulas with the goal of increasing combustion efficiency. A fuel oxygenate, MTBE enhances the octane in gasoline and decreases carbon monoxide emission by increasing burning efficiencies. In its haste to declare MTBE as a required ingredient in gasoline, the EPA failed to consider a basic chemical property of MTBE and its long-term effects upon the environment. Because MTBE is highly water-soluble, it dissolves in water, leading to higher concentrations of MTBE in many lakes in the California Sierra Nevada mountains and in many groundwater suppli ....
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Breast Cancer In Women
700 Words - 3 Pages.... women as young as 15 and 16 years old should start with self-examination. But how effective is the self-exam, and other forms of early detection, and does it really help to save women from the disease? This is a question I hope to address in the following research.
Self examinations are the most commonly used tests used for detecting breast cancer among women today. The self exam is a simple exam that women can perform on their own with a few simple steps.
Another way of detecting breast cancer is with a mammography. This is an X-ray that scans in make up of the breast to show whether there are and tumors. This is the most effective type of detection to date. (Cancer ....
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Darwinism
1665 Words - 7 Pages.... in the outdoors. He was a very smart child, but his father, Robert Waring Darwin II, didn't think so. "Darwin had a youth unmarked by the slightest trace of genius." (Rachels,7). This didn't stop Darwin, though. He never lost this curiosity throughout the years. At the age of 18, he made a very important discovery about flustra, which is "1. That the ova of the Flustra possess organs of motion and 2. That the small black globular body hithero mistaken for the young Fucus lorious is in reality the ovum of the Pontobdella Muricata." (Rachels,7).
In the early 1800's, a group of naturalists led by Captain FitzRoy, were planning an overseas trip, which they called the Voyage ....
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Adaptation Syndrome
326 Words - 2 Pages.... in bodily changes such as increased or irregular heart beats, shallow fast-breathing or muscle tension (refer to appendix xxx). It is this physical reactions that characterize this early stage is the GAS model. (Author, pg#).
Dr. Selye preformed most of the early work on the adaptation syndrome. His experiments in general looked at harmful stimuli on the response of the body. In an experiment, Seyle exposed a large number of rats to a refrigerated room where the temperature was near freezing,(Author pg#) “…during the first 48 hours they developed the typical manifestations of the alarm reaction. This was proved by killing ten animals at the end of the second d ....
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