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Essays on Science

Climatology
Download This PaperWords: 370 - Pages: 2

... popular classification systems is the Koppen Climate Classification system, which gives different climates three letters that describe that climate. The Koppen Climate Classification system is comparatively simple and is based on a triad of letter symbols. The first (capital) letter is the critical one; the A climates are humid and tropical; the B climates are very dry; the C climates are humid and mild; the D climates reflect increasing cold; and the E climates mark the polar areas. The first letter is followed by two more letters that further define the climate of that region. The second letter represents and explains the dry season: whether there is or ...



Hawaiian Goose
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... at the Kilauea National Wildlife Refuge, along the Na Pali coast and outside Lihue on Kauai. Captive Nene can be seen at he Honolulu Zoo. Designated Hawaii's State Bird on May 7, 1957, the Nene has endured a long struggle against extinction. During the 1940s this species was almost wiped out by laws which allowed the birds to be hunted during their winter breeding seasons when the birds were most vulnerable. By 1957, when the Nene was named the State Bird, rescue efforts were underway. Conservationists began breeding the birds in captivity in hopes of preserving a remnant of the declining population and, someday, successfully re-establishing them in their nati ...



The Nuclear Power Debate
Download This PaperWords: 779 - Pages: 3

... of electricity produced from Uranium. The use of nuclear power opposed to burning fossil fuels has reduced carbon dioxide emissions by 2 billion tonnes per year, minimising the global warming effect on the atmosphere. Carbon dioxide is responsible for half of man made gases contributing to the Greenhouse Effect, and has sparked action from the UN Intergovernment Panel on Climate Change. Their consensus is a concern for the environment in the next century if fossil fuels continue to be used, even at present global levels. The Panel claims that for carbon dioxide to be stabilised to safe levels, a 50-80% reduction in all emissions would be required. The United N ...



Dna And Forensics
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... to be cleared as a result of DNA fingerprinting". (Joe Mickel and John F. Fischer, 1998) DNA can be found in such things as blood and semen. It can also be found in such things as tissue found beneath the fingernails of a victim after a struggle, it can even be found in saliva cells left on a mouthpiece of a telephone after a conversation. DNA is everywhere in a persons body, and can not be replicated. It is unique to every person, but all blood relatives have similar qualities that make them identifiable. (Joe Mickel and John F. Fischer, 1998) DNA stands for deoxyribonucleic acid, and it basically looks like a twisted ladder, or a double helix with rung ...



Describe The Main Limitations Suffered By Those With Chronic
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... can be caused by a local inflammation of the air-ways, muscle contraction or the production of excess mucus with in bronchi. (R.Roberts, 1996) Most common is bronchial asthma. Medical definitions of asthma suggest that environmental triggers can substantially contribute to the occurrence of an asthma attack. The review of asthma in Victoria (1988) by the Asthma Foundation of Victoria outlined infection, exercise, climatic conditions, exposure to airborne irritants and emotional upsets as the main trigger factors. However, doctors use a general classification to identify a patients pattern of asthma…classifying people who experience some symptoms of asthma on most ...



Dreams Rem
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... the dreamers past and present, and it arises from unknown regions within. He saw the dream as significantly analogous to a hysterical symptom. On the surface, they both appear meaningless and bizarre, but they become understandable when understood as veiled expressions of an unconscious clash between competing motives. Freud developed an elaborate theory and how the mind works while asleep. In 1953 sleep researchers led by Nathaniel Kleitman made the important discovery of rapid eye movement--or REM-- sleep. Curious about the long-standing observation that the eyeballs of sleeping subjects in both humans and animals periodically move during sleep, they connect ...



El Nino
Download This PaperWords: 380 - Pages: 2

... and a depression of the thermocline in the pacific. The thermocline is the layer of water between the warmer, surface zone and the colder deep water zone, in a thermally stratied body of water, in which the temperature decreases rapidly with depth. This depression of the thermocline has great effects on the worlds fishing industry. The cutting of nutrient rich therocline water reduces the growth of algae, which in trun, collapses the food chain. Thus, leaving our worlds subsistence and commercial fishermen with out food and money. With the already descendeing food chain on our earth, the warming water also effects the atmosphere, resulting in more extrem ...



Meth 2
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... Food and water become unimportant after taking it. Seizures and death can occur. Meth can cause: 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 ...



Charles Darwin And Richard Owen
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... Edinburgh medical school in 1824. However, due to the lack of quality in teaching, Owen transferred to Barclay School, and it was here that John Barclay, an anti-materialist, greatly influenced Owen. Through Barclay's recommendation of Owen to John Abernathy, President of the Royal College of Surgeons, Owen was granted membership to the Royal College in 1826. Owen was later appointed assistant in the cataloging of a collection containing thirteen thousand specimens (known as the Hunterian Collection (Rupke 17)). It was probably this that lead Owen interest in the field of anatomy, which eventually lead him into becoming a naturalist. By 1836, he publ ...



Animal Testing
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... In Albuquerque, New Mexico, 64 Beagles were forced to inhale radioactive Strontium 90 as part of a “Fission Product Inhalation Program” which has been paid for by the U.S. Atomic Energy Commission. In this experiment 26 dogs died. One of the deaths occurred during an epileptic seizure; another from brain hemorrhage. Other dogs, before death, became feverish and anemic, lost their appetites, and had hemorrhages. The experimenters compared their results to those experiments conducted at the University of Utah and the Argonne National Laboratory in which beagles were injected with Strontium 90. They concluded that the dose needed to produce “early death” in fifty perce ...




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