Papers on Science and Environment
Hanta Pulmonary Syndrome
Words: 414 - Pages: 2.... half of the cases to date have been in the Four Corners area. In a dry area, the disease’s incubation is somewhat longer, making the chances of contracting it somewhat higher. In places such as woodpiles and sheds where there is little air circulation to move off the virus, it can linger for a sizeable duration of time.
The best method of fighting the hanta virus is prevention. By controlling the rodent population and preventing them from entering houses and sheds, the risk of infection can be lowered. Furthermore, educating those in high-risk areas of the signs of the disease and what to do about them significantly lowers the lik .....
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Heart Murmurr
Words: 888 - Pages: 4.... murmur heard is called pulmonary flow murmur. This is caused by the flow of blood through the pulmonary artery, which takes blood to the lungs. The arteries are still slightly narrow, and, therefore, blood flow through them will cause a murmur. As the baby grows, the murmur will become softer and many times disappear altogether. Another common innocent murmur heard in children ages 3 to 8 years is a vibratory musical murmur called a Still's murmur. No one knows the cause of the murmur other than blood flowing through a healthy vigorous heart. The murmur is usually detected at a well-child visit or if the child comes in with fever or some o .....
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Valves
Words: 354 - Pages: 2.... referred to as bridge wall markings. This is specific information about the valve.
One of the more common found in industry is a gate valve. A gate valve is typically operated in the wide-open, or completely shut position. This type of valve is used where flow rates are not restricted.
Globe valves are the second most common valve used I industry. A globe valve places a movable metal disc in the path of a process flow. This type of valve is most commonly used in the throttling service.
Ball valves take their name from the ball-shaped, movable element in the center of the valve. The movable ball rotates to let flow .....
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Alcoholism 4
Words: 1374 - Pages: 5.... of the central nervous system (Kestler 6).
Alcohol acts as a sedative and as an anesthetic, reducing nerve transmissions and impulses to the central nervous system. This depresses mental, motor, and vital functions such as pulse rate, respiration, and blood pressure (Kestler 6). The body can absorb alcohol very quickly, approximately 20% goes directly into the blood stream from the stomach, the rest enters the body through the small intestine. Moments after alcohol enters the blood stream it reaches the Cerebral Cortex, the part of the brain responsible for judgement. The areas of the brain controlling caution and self control are eff .....
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California Water Pollution
Words: 368 - Pages: 2.... our water clean. Such as proposition 65 "The safe drinking water and toxic enforcement act" of unsafe levels of chemicals known to cause cancer and reproductive harm into actual or potential water sources. There is also the Toxic Pits cleanup act of 1984. This act states that there is to be no discharge of hazardous wastes within an half a mile of a potential drinking water source. This is something being done, but water does travel and seep through ground so what is this act really doing. The clean water act is designed to protect ground water indirectly by protecting the quality of surface water. The standards for the surface water .....
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Genetically Engineered Foods
Words: 2016 - Pages: 8.... or functions of an organism, are called genes.
Molecular biologists have discovered many enzymes, which change the structure of DNA in living organisms. Some of these enzymes can cut and join strands of DNA. Using such enzymes, scientists learned to cut specific genes from DNA and to build customized DNA using these genes. They also learned about vectors, strands of DNA like viruses, which can infect a cell and insert themselves into its DNA. Scientists started to build vectors, which incorporated genes of their choosing and used vectors to insert these genes into the DNA of living organisms. Genetic engineers believe that they can .....
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Depression 7
Words: 489 - Pages: 2.... life. An example of this is if someone close to them dies. The other kind is called bipolar or manic depressive illness, it is recognized by alternating depressed and manic episodes. This is an actual brain disfunction. In the major depression or the depressed phase of bipolar illness, a depressed mood predominates, even though the patient may not be aware of feeling sad. Typically, he or she loses all interest in activities. Symptoms include sleep disturbances, not able to concentrate or to make decisions, loss of appetite or greatly increased appetite, slowed thinking and decreased energy feelings of worthlessness, guilt, hopelessness, dim .....
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Global Warming
Words: 1184 - Pages: 5.... the composition of the biosphere and the Earth's heat balance. If we do not slow down our use of fossil fuels and stop destroying, the forests, the world could become hotter than it has been in the past million years. Average global temperatures have risen 1 degree Fahrenheit over the last century. If carbon dioxide and other greenhouse gases continue to spill into the atmosphere, global temperatures could rise five to 10 degrees by the middle of the next century.
The warning will be the greatest at the higher latitudes of the Northern Hemisphere, with the largest temperature rises occurring in winter. Most areas will experience sum .....
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Meth
Words: 357 - Pages: 2.... angry, hostile, and anxious
feelings, violent behaviors, confusion, mental illness, increased
physical activity, loss of appetite, increased heart rate, inability to
sleep, strokes can occur, chest pain, increased blood pressure,
irregular heart rate, aids and HIV through the use of needles,
dependence, tolerance, addiction, and can cause psychosis.
The use of Meth is going up. In 1995, 3.9% of high school
seniors had used it. That's an increase of 2.7% since 1990. 8 out of
10 people who try Meth will become addicted. Famous people who
have done Meth include- Chris Farley, John Belushi, and Mick
Jagger. The cost of doing Meth .....
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Endangered Species 3
Words: 2194 - Pages: 8.... list of endangered animals:Bottle Dolphin, Peacock, Wolf, Emperor Penguin, Koala, Reticulated Giraffe, Snowy Owl, and unfortunately hunderds of more. The death of these animals each year are all different and sometimes so simple.
There are two different kinds of causes that drastically cut Down the number of these endangered species:
Direct Causes
Direct Causes is when the animals are purposely hunted, trapped, fished, whaled, or seled to extinction. Hunting for sport has been responsible for endangering such animals as the Polar Bear and the Siberian Tiger. But the endangerment of most species that are hunted or trapped today results mainl .....
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