Migraines
.... with adenosine reception.) When caffeine is withdrawn, however, the chronic caffeine user is left with too many adenosine receptors. Having too many adenosine receptors is equivalent to having too much adenosine. As a result, serotonin release is inhibited and this leads to migraine symptoms.
As you know there are many drugs used against migraine. Many of these drugs contain caffeine, for good reason: caffeine relieves migraine by reversing caffeine withdrawal. Migraine drugs that contain caffeine inc .....
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Genetic Engineering And Its Fu
.... and kill off the mice, we do it so one day we will have a cure for cancer and can save hundreds of thousands of human lives. Of course if you value the life of a mouse over a human then you would see differently. Some fear that this science is too powerful, granted we shouldn't let just anyone be able to modify bacteria, or the human genome, but we shouldn't let our fears blind us to the possible benefits of wide-scale genetic engineering.
Medical uses for this technology are virtually endless. With .....
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Global Warming A Serious Threa
.... can increase air and water pollution, which in turn harm human health" (ESP Health 1). The hot temperature, which could be the most direct effect of climate change, causes the heat problem. Because their cardiovascular system has to work harder to keep the body cool during hot weather. The temperature causes harmful effects to human health and another is cause of lung problem. "Higher air temperatures also increases the concentration of ozone at ground level". When this happens, the harmful u .....
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Gold And Its Uses
.... into small chunks and placed on carefully lined pads where a dilute cyanide solution is distributed over the surface of the heap. The solution percolates through the heap and the cyanide dissolves the gold. This solution containing dissolved gold is then collected. Refractory ore containing carbon is roasted to over 1,000 degrees Fahrenheit, burning off the sulfide and carbon. The product of this process is an oxide ore, which is routed to the leaching circuit. Oxide ore is sent directly to the leachi .....
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Global Warming
.... 30%, methane concentrations have almost doubled, and nitrous oxide concentrations have risen about 15%. These increases have made the heat-trapping worse in the earth's atmosphere. Sulfate aerosols, a common air pollutant, cool the atmosphere by reflecting light back into space, but, sulfates do not live long in the atmosphere.
Why are greenhouse gas concentrations increasing? Most scientists believe that the burning of fossil fuels and other human's doings is the main reason for the increased .....
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Genetic Faltering
.... standards for experimentation, and this caused many harsh, and disruptive experiments. Then in 1975, the second Asilomar conference was held. This conference helped a little, but it still left to much gray area for scientists to “play” in. (Tagliaferro 70) The Asilomar Conference were a gigantic step forward, but they still left the scientists with to much freedom. The government should have taken control of the industry when it had the chance, but it let the chance slip through its fingers.
After t .....
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Global Warning
.... the United States and a ton of carbon were emitted in China, both would have the same effect on the climate in Washington, DC. Only through the concerted actions of all the countries of the world, developed as well as less developed, will the problem of global climate change be meaningfully addressed.
The solutions to the problems lie in developing an understanding of and a respect for that ecosystem as well as providing people with mechanisms to express that understanding in their daily choices. .....
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Geoloy Of Mars
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Genetic Disorders
.... movements and may have
problems with coordination, thinking, and judgment. A weakening of the
nerve cells in the brain causes these symptoms and later results in death.
Another single-gene disorder is the Tay Sachs Disease. People who
inherit the faulty Tay Sachs gene lack a crucial enzyme that is needed to break
down fatty substances in brain and nerve cells. As a result, these substances
build up in such large quantities that the central nervous system
gradually stops functioning .....
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Genomics
.... Sandoz and Ciba-Geigy, merged to create a new company, Novartis. The largest pharmaceutical merger in history, this new company is valued at over $100 billion. A near merger between Glaxo and SmithKline would have created the world’s third largest company, with a budget large enough to fund the estimated cost of sequencing the human genome. Its capitalization would have been larger than the annual gross national product of some 143 of the world’s nations (Enriquez 925).
These mergers also a .....
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Genetic Engineering
.... of scientist ideals of how to alter this new science to create the perfect human does in-fact sound crazy. But if genetic engineering was regulated to prevent such things the new science could bring wonders to many peoples lives.
The first form of genetic engineering began with a man named Mendel, a monk in the late nineteenth century. He was the first to even formulate the concept of the gene from his experiments on pea plants. Since Mendel, other scientists have continued in agricultural engineerin .....
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Genetic Cloning
.... as ‘propagation’. Propagation has long been under the influence of genetic engineering in the form of selective breeding. An example of this is barking dogs, it is well known that wild dogs do not bark as such, they howl and growl, domestic dogs on the other hand have been bred to bark, hence barking dogs have been preferable to humankind as they alert the coming of strangers. Today barking dogs have become unpreferable as the density of human population increases, so the requirement for dogs to warn an .....
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Goundwater
.... It is also difficult to tell where exactly the source of recharge for your well is. Thus if an area near your well becomes polluted, the pollution may seep into the groundwater feeding your well.
The purpose of this project is to explore the subject of groundwater, its place in the water cycle, how it seeps through the ground and how it accumulates in underground pockets called aquifers. The project will also examine the many uses of groundwater in agriculture as well as environmental problems t .....
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Genome Sequencing
.... sequencing projects include a greater understanding of the organisms being sequenced and acknowledgment of the minimum complement of genes necessary for a free-living organism. Of the organisms that have already had their genomes sequenced, a number are of particular importance. For example, Mycoplasma genitalium has a complete nucleotide sequence that is only 580,070 base pairs long, and as such, is believed to be the smallest genome of any free-living organism. Because of it's unique size, this geno .....
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Gene Therapy
.... offspring, whereas in germline gene therapy the changes are passed onto the next generation. Not much research is being done in germline gene therapy because of technical and ethical reasons.
The first step of gene therapy is to find the location of the problem gene or genes. DNA probes are used to find the problem DNA. "The technique relies upon the fact that complimentary pieces of DNA stick together."5 The Human Genome Project is helping to piece together the location of all of the human genome.
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