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Science & Nature Essays and Term Papers
Breast Cancer 2Scientists have finally found out why MPA medroxyprogesterone, otherwise known as Provera performs just as well in low doses in small children who are dealing with early sex traits, as it does for women in high doses with breast cancer. You may have heard of Provera before as the drug that ...
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Dinosaurs 2Just as most dinosaurs are believed to be wild and mean, most are. Unlike the wild and ferocious Tyrannosaurus Rex, the Velociraptor, is a smaller, agile dinosaur. The Brontosaurus can be found with the bigger, more gentle dinosaurs. The Tyrannosaurus Rex, Velociraptor, and Brontosaurus differ ...
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Cardiac PacemakersThe heart is bestowed with a specialized system that automatically generates rhythmic control via the sinus node, located in the superior lateral wall of the right atrium near the opening of the superior vena cava. The specialized pacemaker cells dictate control of the rest of the heart through ...
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A Balloon And ScienceWhen the balloon is not inflated, it has air in it. There is no pressure. When it is blown up it is filled with carbon dioxide. There are three forces that will slow or stop a rocket balloon. These three forces are friction, gravity, and air resistance. Friction is a force that resists the ...
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Black Powderby far has been one of the most remarkable discoveries of this time. It has helped light up our fireworks on the Fourth of July, allowed us to use guns, and to make smoke. The history of is considered to be founded in Italy around the time of the thirteen hundreds. It was supposedly found by ...
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Artificial Insemination, test-tube fertilization, frozen storage of embryos and surrogate parenting. For many people, these new and often controversial procedures of artificial reproduction hold out a last hope for starting a family. What happens during the insemination process is your physician uses a syringe to inject ...
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Mycardial InfarctionMyocardial Infarction, also known as heart attack, coronary thrombosis, or coronary occlusion is the sudden blocking of one or more of the coronary arteries. If the blocked artery involves an extensive area, the person may die. If not, there will still be necrosis of heart tissue and scarring, but ...
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PhotosynthesisWhen you and me eat, we find our food. When plants eat, they make their
own food and energy. They make their food and energy through a process called
photosynthesis. Through photosynthesis oxygen is also produced. Photosynthesis
is "a process in which green plants synthesize carbohydrates ...
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Bang, The Life Cycle BeginsIf it started with a “bang” or a “blast” no one really knows for sure, but the universe that was left behind will only expand until it has reached its limit. Then all matter and energy will condense back to a single, inconceivably dense point concluding the life of the universe. You would think ...
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Forensic Psychologyis something that I have been interested in for quite some time; for an explanation of what is here is a broad explanation from Dr. Joseph Davis, "Forensics literally translated from Latin means "in the
forum". A place to argue, to debate and to render an opinion regarding such facts. ...
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Computer Virus"Traces of the Stealth_c Virus have been found in memory. Reboot to a clean system disk before continuing with this installation…" This was the message staring back at me from one of the computer monitors at my office. Questions raced through my mind. "Stealth_c?" "What's a system disk?" "How am ...
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Perception: Seeing Is Believing - UFOsSince the times when the earth was believed to be a flat object, man has
had a lust and curiosity about space and the bodies that exist in it. Early
astronomers trying to grasp the incomprehensible mysteries of the universe would
study the patterns of the stars and planets to try to put this ...
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Atmosphere CrisisWe are living in the midst of a great chemical experiment, and some serious consequences are becoming apparent to scientists. More than two billion pounds of chemicals are spewed into the air each year. These chemicals are brewing a disastrous stew, resulting in an . The greatest consequences of ...
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Oil And Protecting The EnvironmentProtecting the environment while producing, transporting, refining and
marketing fuel is a challenge the petroleum industry must meet every day.
For all of the benefits oil has brought to modern society, risk is
inherent in taking it from the Earth -- in drilling wells, storing fuel
for future ...
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ComputersDEVELOPMENT OF OVER THE DECADES
A Computer is an electronic device that can receive a set of instructions, or program, and then carry out this program by performing calculations on numerical data or by compiling and correlating other forms of information.
Thesis Statement:- The modern world of ...
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The Y2K ProblemWhat is Y2k? In one sentence, Y2k is "...the inability of computer programs at the year 2000 to interpret the correct century from a recorded or calculated date having only two digits to indicate the year".[Center for Computer Systems Engineering]
What does that mean? It means that many of our ...
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Diabetes 3Diabetes Mellitus is a disorder in which blood levels of glucose are abnormally high because the body doesn’t release or use insulin adequately. Diabetes Mellitus affects many organs of the body. It affects the blood vessels because Atherosclerotic plaque builds up and blocks large or ...
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The Geiger-Muller TubeIn , particles ionize gas atoms. The tube
contains a gas at low pressure. At one end of the tube is a very thin ”window”
through which charged particles or gamma rays pass. Inside the tube is a copper
cylinder with a negative charge. A rigid wire with a positive charge runs down
the center of ...
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AlsMedical history has been filled with an array of diseases and illnesses, ranging from the common cold to deadly killers. Some are easily treatable and others can be terminal, but some of the worst are those that still remain without a cure; one such disease is amyotrophic lateral ...
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Ozone(O3) is a molecule consisting of three oxygen atoms, similar to the oxygen
we breathe (O2), however oxygen consists of only two oxygen atoms. In the
stratosphere, a region high up in the upper atmosphere, light rays are
responsible for the breaking down of oxygen (O2), breathable oxygen into its ...
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Cystic FibrosisI am the doctor for your hospital and have prepared the following paper for you to look at and possibly use. It includes information on what really is, what treatments there are, what you two can do for your child, and how it is inherited. I hope this document is useful to you in your incoming ...
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Klinefelter Syndrome -Klinefelter syndrome, also called testicular dysgenesis, is the phenotype of the 47,XXY genotype and is characterized by male hypogonadism and infertility. Klinefelter Syndrome is probably the most common chromosomal variation found in humans. In random surveys, it is found to appear about once in ...
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Alternate Energy SourcesAs most people know our energy supply is slowly running out. We are using energy sources that either pollute the air, take up natural resources or cause damage to other forms of life. Today, we are working on other forms of energy that do not pollute or cause harm to the environment. Here are ...
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Acid RainINTRODUCTION: is a great problem in our world. It causes fish and
plants to die in our waters. As well it causes harm to our own race as well,
because we eat these fish, drink this water and eat these plants. It is a
problem that we must all face together and try to get rid of. However
on it's ...
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Evolution And Creation The theory of are the same and different in
a lot of ways. Lamarck was the first person to come up with a
theory for evolution. There are a lot of different creation stories in the
The theory of evolution means that all plants and animals
developed from earlier forms by hereditary ...
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