... first level, primary structure, is just the basic order of all the amino acids. The amino acids are held together by strong peptide bonds. The next level of protein organization is the secondary structure. This is where the primary structure is repeated folded so that it takes up less space. There are two types of folding, the first of which is beta-pleated sheets, where the primary structure would resemble continuous spikes forming a horizontal strip. The second type of folding is an alpha helix, which goes vertically forming a wavy line. An alpha helix is in the same shape of one strand of DNA. These new formations are held together by hydrogen bonds. T ...
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... synthesis of organic molecules. Often electrochemical reactions can proceed under milder conditions (more safely), with less hazardous waste (better for the environment), and in higher yields (better for your wallet) than a similar process using chemical reagents. Some synthetic processes can only be done using electrochemical methods, and electrochemical methods are used in the large-to-medium-scale synthesis of organic "fine chemicals" because of the financial, safety and environmental advantages. Here's a page outlining some current research by one of my graduate school professors. I can think of at least three common uses of electrochemistry: pH meters and oth ...
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... over fishing our waters. The way they are going there will not be enough fish for a maximum sustainable yield, and our fish population will die. Fishermen also clean there fish and throw the guts overboard into the ocean. Industrial, agricultural, household cleaning, gardening, and automotive products are also polluting our ocean. You wouldn't believe it but all of those products I just named regularly end up in water. About 65,000 chemicals are used commercially in the U.S. Today, with about 1,000 new ones added each year. Only about 300 have been extensively tested for toxicity. I think that since our oceans are doing so bad the U.S. should put a ban on new, an ...
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... therefore, it is necessary for the government to overcome such problems of recycling to be worth while and for manufacturers and consumers to consume less. Recycling has proven its efficiency in solving the problem of garbage disposal at landfills1. By the accumulation of garbage throughout the years, space available for garbage has largely diminished. In the states for example almost 67% of their waste stream ends up in landfills.(Scott 25). This has in fact increased the price of disposal. As Kimball stated "tipping fees" at landfills, is so often prohibitive(3), and some cannot find landfills to dump their garbage. It can cost up to $158 to pick a ton of garb ...
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... to this power source is the lack of knowledge we have for it. Hopefully, within time, we will learn about this new energy source so we can use it to power the future. Fusion Power Fusion Power is probably the biggest known Alternate Energy Resource. Fusion is the joining of the nuclei of two atoms to form the nucleus of a heavier element. It occurs mostly with hydrogen and other light elements. Fusion reactions, also called thermonuclear reactions, release a great deal of energy. Scientists are still conducting experiments on ways of harnessing Fusion so we can use it as an energy source. Microwave Power 25% of the energy we use today is used t ...
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... the comet to absorb heat, which causes some of the ices under the crust to turn to a gas. Pressure builds up underneath the crust and causes the surface to bubble up in some places. Eventually, the weak spots of the crust break open from the pressure, and the gas shoots outward; this is referred to by astronomers as a jet. Dust that had been mixed in with the gas is also pushed out, and as more jets appear, a small gas and dust shell forms around the nucleus, and this is called the coma. The coma, also called the head, is a dense cloud of water, carbon dioxide and other gases and comes off of the nucleus. They can be several thousand kilometers in diameter, depen ...
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... rapidly decay unless used or rehearsed. Encoding can be an automatic process, this occurs when little or no effort, without awareness, and without interfering with our thinking about other things. Encoding can also be effortful processing; although we encode an enormous amount of information unintentionally, many other types of information we remember only with much effort, rehearsal, and attention. We can forget things because of encoding failure. Sometimes we fail to encode information, so it never entered the memory system, short-term or long-term memory. A vast amount of what we sense, we never notice or process without encoding effortful process. We also ...
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... particles of dust. These are represented by the columns of the pier. The waves of the sea represent the sunlight. We know that the sunlight is a blend of lights of many colors - as we can prove for ourselves by passing it through a prism, or even through a jug of water, or as Nature demonstrates to us when she passes it through the raindrops of a summer shower and produces a rainbow. We also know that light consists of waves, and that the different colors of light are produced by waves of different lengths, red light by long waves and blue light by short waves. The mixture of waves which constitutes sunlight has to struggle through the obstacles it meets in ...
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... is the sixth brightness star, at a visual magnitude of 0.08. The star is 43.5 light years away, and is about ten times the size of our Sun. Capella's visual magnitude is really the combined brightness of the primary star and another star that revolves every 104 days. This star is also known as Menkalina. The star name derives from the Arabic name Al Mankib dhi'l Inan, "The Shoulder of the One Who Holds the Reins," that is, "The Shoulder of the Charioteer." Several open clusters are found in Auriga. Each contains about 100 stars and is about 2,700 light years away. The main part of Auriga is a five-sided figure of first, second, third magnitude st ...
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... it is common to find families with several affected members. While such clustering'could also be due to shared non-inherited (environmental') factors,more convincing evidence has come from twin studies, as well as studies of ill individuals who were adopted away before the onset of illness. It is fair to say that even such studies do not suggest inherited factors as the sole causes. A more reasonable explanation is that there are individuals who have an inherited proneness to illness. Such individuals may fall ill, if in addition, they are exposed to noxious factors in the environment such as drugs. This model' is similar to that already proven in the ...
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