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Apoptosis 时间:2013-11-13
Apoptosis Neuron Apoptosis Animal cells can self-destruct via an intrinsic program of cell death (Steller, 1995). Apoptosis is a form of programmed cell death that is characterized by specific morphologic and biochemical properties (Wyllie et al., 1980). Morphologically, apoptosis is characterized by a series of structural changes in dying cells: blebbing of the plasma membrane, conde
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Arson 时间:2013-11-13
Arson According to Explosions Their Anatomy and Destructiveness (1944) ' and explosion consists of the very sudden production of large quantities of gases, usually hot, from a much smaller amount of a solid, a liquid, or a gas. This is usually accompanied by a loud noise or report'. According to The Chemistry of Powder and Explosives (1984) an explosive is a material, either a pure sin
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Appplied_Gentics 时间:2013-11-13
Appplied Gentics There are many different types of fashionably edible fruits today due to the growing world of Appling genetics to fruit and citrus . Today fruit and citrus are commonly hybridized for benefits. Crossing fruit types and mutations to get the most desirable apple and juicy oranges has become a new type of biology. The apple of today is firm and sweet as the apple of yest
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Archimedes 时间:2013-11-13
Archimedes In 287Bc a great mathematician was born, Archimedes, he impacted greatly on our modern day science and math. Over 2000 years ago this superior mathematician discovered many laws. Archimedes is among the greatest mathematicians of his era. He contributed tremendously in the world of mathematics. Archimedes (287-212BC), one of the finest Greek mathematician and inventers. He
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Are_We_Alone 时间:2013-11-13
Are We Alone The prospects of finding life elsewhere in the Solar System Thirteen thousand years ago, a dazzling meteor flashed into existence in the skies above Antarctica. As it ploughed earthwards, the heat of its fall ripped apart the atoms of the air, leaving behind a brilliant trail that lit up the icy landscape. It would have made a beautiful sight, if anybody had been there to s
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Arsenic 时间:2013-11-13
Arsenic Arsenic is a naturally occurring element found in our Earths crust, but too much of the element in our water systems, aquifers and wells could cause serious health problems over a long period of time. It has no distinctive taste or smell. You would assume that because arsenic is a naturally occurring element it wouldnt even be a concern. Arsenic causes a very serious enviro
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Atomic_Bomb 时间:2013-11-13
Atomic Bomb The Decision of Disaster Harry S. Truman assumed the presidency on April 12, 1945 when America was already in war with Japan. United States and Japan were under peaceful negotiations when suddenly on December 7, 1941, a date, (which will live in infany that the United States) of America was suddenly and deliberately attacked by the naval and air forces of the Empire
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Atomic_Theory 时间:2013-11-13
Atomic Theory The Theory of Atomical Proportions The atomic theory was a theory based on the idea that every item in this world could be broken down into an extremely small particle called the atom. If the idea had never been presented and recorded, then there would have been no attempts to prove it, and science would have suffered as a result. Dealing with the events before the bi
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Atoms_And_Theory 时间:2013-11-13
Atoms And Theory Atoms are basic building blocks of matter, and cannot be divided. Atoms are made up of three types of particles, protons, neutrons, and electrons. Protons and neutrons can be found in the nucleus. Protons have a positive charge, and neutrons have no charge, they are neutral. Electrons can be found in orbitals around the nucleus, they have a negative charge. To come
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Aspirin 时间:2013-11-13
Aspirin Aspirin Aspirin, which is made by Bayer, is a pain reliever that temporarily relieves headaches, painful discomfort and fever of colds, and inflammation caused by various conditions. The active ingredient is acetylsalicylic acid, otherwise known as ASA or aspirin. Pills come in suppositories of 325 mg (regular strength), 500 mg (extra strength) or 650 mg (fast acting). Aspi
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Automobile_Pollution 时间:2013-11-13
Automobile Pollution I. Introduction In the past century, the automobile has come a far way from Henry Fords Model T. In the United States there has always been a high demand for cars, and with that demand comes the need for speed, and a need to have the best. And that is what major automobile industries have been giving our society because they know that they can profit greatly fro
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Assisted_Suicide 时间:2013-11-13
Assisted Suicide Assisted suicide, also called euthanasia (originated from the Greek, eu, meaning good, and thanatos, meaning death)( No Author, http:// www.religious tolerance.org), is the act of assisting a person who wants to die. That person may want to die for a multitude of reasons, be it because of a terminal illness, extreme pain and suffering, or because of an illness that wi
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Asteriod_And_Dinosaurs 时间:2013-11-13
Asteriod And Dinosaurs Simply put, one of the most intriguing puzzles of all time, is the life and death of the dinosaurs. These massive, almost mythical creatures have fascinated, baffled, challenged and mystified the intellectual world ever since their first fossils were discovered. Growing up, children are exposed to these larger than life creatures and are immediately drawn in by t
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Atmospheric_Circulation 时间:2013-11-13
Atmospheric Circulation The global energy balance and atmospheric motion mainly determine the circulation of the earth's atmosphere. There is a hierarchy of motion in atmospheric circulation. Each control can be broken down into smaller controlling factors. The global energy balance is an equal balance of short-wave radiation coming into the atmosphere and long-wave radiation g
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Bacillus_Anthracis 时间:2013-11-13
Bacillus Anthracis The bacteria Bacillus anthracis, the etiologic agent of Anthrax, is a large, gram positive, sporulating rod. Approximately 2-6 µm in length, this bacterium can be cultivated in ordinary nutrient medium under aerobic or anaerobic conditions. More commonly recognized by the name Anthrax, this bacterial pathogen is primarily a disease of domesticated and wild animals, p
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Barley_Seeds 时间:2013-11-13
Barley Seeds Introduction: The purpose of the following experiment is to measure oxygen consumption and dye reduction in germinating barley and corn seeds at three different temperatures (Anderson, John N, pg. 6). Oxygen consumption can be measured through a process known as cell respiration. Cell respiration can be explained as an energy yielding pathway that occurs by using organi
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Barometric_Pressure 时间:2013-11-13
Barometric Pressure BAROMETRIC PRESSURE Barometric Pressure is defined as the weigh of a column of air extending from the ground up to the limits of the atmosphere. Although pressure is an invisible force, similar to gravity, it can also be measured by observing a properly set- up barometer. The barometric pressure is measured in units called either atmospheres, or bars (from barom
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Basic_Chemistry 时间:2013-11-13
Basic Chemistry In 1829 Johan Dobereimer first classified elements into a system of so-called triads. Previously, there were so few discovered atoms that this was impossible to group atoms in any way. Johans system was a pioneer in a series of scientific attempts to accurately place like elements, discovered and undiscovered into categories with similar properties. Although Johans syst
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Bees 时间:2013-11-13
Bees Although we see them as simple creatures, bees are very complex and fascinating. Contrary to what most people think, there are many different types of bees. Their bodies are small but have many intricate components. There is a great deal of research being done on bees today. We have much to learn about them. Types of Bees Heinrich states that about 20,000 species of bees exi
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Bells_And_Whistles 时间:2013-11-13
Bells And Whistles The Maxim article concerning condoms discusses methods in which to gauge personal physical attributes to find condoms that suit the buyers needs the most. By going into detail about how to gauge the right size of a penis to fit the brand of condom, the article assists readers in making an informed decision when buying a condom. The writers list some useful data abou
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Beluga_Whale 时间:2013-11-13
Beluga Whale Outline I. Beluga whale A. Order II. Life history A. Appearance B. Size C. Habitat D. Characteristics E. Sound F. Eating habit III. Reason for endangered classification A. Hunting B. Pollution C. Predator IV. World population V. Efforts to save the species A. Conservation VI. Conclusion VII. Sources The Beluga whale belongs to the order of
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BIO 时间:2013-11-13
BIO Chapter 21: Gas Exchange and Excretory Systems Section: Gas Exchange in Multicellular Organisms Question: Where are the structures involved in gas exchange located' Answer: Organs for gas exchange have evolved differently in various organisms, yet they all have a common function: exchanging gas molecules between cells and the external environment Support: 21.1 Variatio
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Benjamin_Franklin 时间:2013-11-13
Benjamin Franklin Benjamin Franklin Benjamin Franklin was born in Boston Massachusetts on January 17, 1706 to Josiah and Abiah Franklin. He came from a family of 17 children in which he was the 15th child. His dad was a candle maker and a soap maker. When he was ten years old he was forced to quit school after only two years. His father wanted him to work full time as a candle ma
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Asexual_Propagation_Lab_Report 时间:2013-11-13
Asexual Propagation Lab Report Asexual Propagation Lab Report Most people are unaware, but there is a way to actually produce a virtually identical twin of a plant without reproduction and without purchase of seeds or another plant. The process is know as Asexual Propagation and can be used to manipulate your garden or greenhouse. The process involves the use of cuttings from the
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Biowarfare 时间:2013-11-13
Biowarfare BIOTERRORISM AND BIOWARFARE This paper is especially relevant today due to the fact that it may be one of the main reasons that our country is currently engaged in a war with Iraq. One of the deciding factors in declaring war was the fact that the United States believes Iraq was in possession of biological weapons and was hiding it from UN inspectors. This poses a major thr
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Bigfoot 时间:2013-11-13
Bigfoot Bigfoot, Yeti and Sasquatch are all mythical ape-like creatures, not know to be real or fake. There is little known information on these animals, but there have been many sighting. The Bigfoot has been seen all over throughout the Northwestern part of the USA. The Yeti is a giant ape-like creature thought to live around the Himalayas. The Sasquatch is a giant ape-like creature th
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Bio_Lab_Report_On_The_Enviromental_Effects_Of_Enyzyme_Catzly 时间:2013-11-13
Bio Lab Report On The Enviromental Effects Of Enyzyme Catzlyzed Reaction Abstract: The effects of enzyme and substrate concentration, temperature and pH on catecholase activity were determined in this experiment. To attain these results, potato extract (Solanum tuberosum) was mixed with catechol and exposed to different environmental conditions, then placed in a spectrophotometer to
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Biochem_Diabetes 时间:2013-11-13
Biochem Diabetes Biochemistry is about life at the molecular level. Biochemists have the ability to work in many fields and look into life from the view of the molecule. Diabetes is very common among people and is not a major problem now but will be in the next century or so. Diabetes is defined by resting hyperglycemia. Glucose has to stay in a fine concentration area. Its needed for
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Bioinformatics 时间:2013-11-13
Bioinformatics Bioinformatics and the Human Genome Project Group Members Index I. History/Background II. Hardware III. Software IV. Business V. Conclusion VI. Bibliography Abstract Bioinformatics is the combination of life sciences and technology, especially in the field of electronic data basing. These databases consist of the human genome, the protein sequence and
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Biological_And_Chemical_Warfare 时间:2013-11-13
Biological And Chemical Warfare Biological and chemical warfare is terrible. No form of war is good, but this kills so many innocent people every time it is used that it shouldn't be used at all. Biological and chemical warfare is defined as a method of warfare in which toxic or incapacitating chemicals or biological agents are used to further the goals of the combatants. It is also d

