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Flouridation
Number of pages: 7 | Number of words: 1681.... lot of fluorine would be bad
(Behrman 182).
In 1938, with this information, Dr. Gerald Cox of the Mellon Institute
began to promote the addition of fluoride to public water systems, claiming that
it would reduce tooth decay, however there were two major obstacles in his path,
The American Medical Association, and The American Dental Association. Both
associations wrote articles in their journals about the dangers of fluoridation
of water supplies. The American Dental Association wrote the following in the
October 1, 1944 issue: “We do know the use of drinking water contain .....
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Nervous System
Number of pages: 2 | Number of words: 514.... nerve impulses.
* Dendrites respond to specific stimuli in the
extracellular environment.
* Synapse terminals communicate information from the
presynaptic cell to the posisynaptic cell.
Structural Classification
*Anaxonic neurons- have multiple processes and the axon is
indistinguishable from the
from the dendrites. They're fairly small.
*Bipolar neurons- have two processes in which one is a
dendrite, and the other an axon.
The dendrite is distinguishable from it's extensive
branching at it's distal end. it's less than 3Omm from tip
to tip.
*Unip .....
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Energy Flow Systems
Number of pages: 6 | Number of words: 1419.... Over millions of years water rushed
through the Columbia Basin to form the Columbia River. Water carries soil, silt,
and debris downstream. The constant movement of material in the river cuts and
shapes the river basin into the land. This movement is a slow and inefficient
use of energy. According to White, only two percent of water's potential energy
results in the work of erosion. The other ninety-eight percent of water's energy
was lost as water molecules rub against themselves, the river bed, and the river
banks. This energy was released as heat into the river. .....
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Diamonds
Number of pages: 5 | Number of words: 1285.... although it is the same element, is more loosely packed and has a six-sided, layered configuration, which makes it soft (Pough, 1991). The differences between graphite and are accounted for by the conditions in which they are created.
form over long periods of time, between 100 km and 200 km below the surface. At this great depth, carbon gets a chance to cool very gradually, forming diamond crystals. When volcanic eruptions occur, magma carries the up to the surface of the earth. Kimberlite lavas carrying erupt at anywhere between 10 and 30 km/hour and increase their vel .....
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Environmental Studies
Number of pages: 4 | Number of words: 1092.... 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 supplies. Hence, by addressing only one component of a system separately, the EPA failed to see the ramifications of our apparent solution. This myopic approach to environmental remediation commonly subverts our .....
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Titanium
Number of pages: 3 | Number of words: 645.... bombarded with neutrons. The emitted radiations are mostly positrons and gamma rays. The hexagonal alpha form changes to the cubic beta form very slowly at around 880 degrees Celsius. The metal combines with oxygen at red heat, and with chorine at 550 degrees Celsius. when a metal, is considered to be physiologically inert. Pure dioxide is kind of clear and has an extremely high index of refraction with an optical dispersion higher then diamond.
The location of on the Periodic Chart is in the series of sub groups called transition elements. Other then the fact that tran .....
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The Roswell Incident
Number of pages: 5 | Number of words: 1146.... other credible military and civilian witnesses have testified that the
original press release was correct and that the Roswell wreckage was of
extraterrestrial origin. One such individual was Major Jesse Marcel, the
Intelligence Officer of the 509th Bomb Group and one of the first military
officers at the scene.
On January 12, 1994, United States Congressman Steven Schiff of Albuquerque, New
Mexico, announced to the press that he had been stonewalled by the Defense
Department when requesting information on the 1947 Roswell event on behalf of
constituents and witnesses. Indi .....
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Carpal Tunnel Syndrome
Number of pages: 2 | Number of words: 459.... entire hand pain that shoots from the hand up the arm as far as the shoulder a swollen feeling in your fingers-even though they may not be visibly swollen
You may notice that:
your symptoms are worse at night
your hands feel weak in the morning
you drop objects more than usual
you have trouble grasping or pinching objects
you may have trouble using your hands for certain tasks, such as buttoning a shirt, writing with a pen, or opening a jar lid
Who gets it?
Carpal tunnel syndrome can occur at any age. Carpal tunnel syndrome from non-work causes usually af .....
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