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Science and Nature Term Papers and Reports
The Kondratieff Wave
2089 Words - 8 Pages

.... turn of events in general. It is very important to understand the long wave cycles in order to act appropriately. Knowing in what phase of the long wave cycle can help link smaller wave cycles with the actual world system long wave cycle. Briefly described, there are four quadrants to the K-wave. In quadrant one we have that “risk is relevant to what the masses think”. In this stage of the K-wave going against mass thinking can result in a very wise choice. Most people can be extremely cautious and pessimistic during this period not knowing what to be cautious about. There is much speculation going on and being one of the first persons to act may give you and adva ....


Electronic Commerce
691 Words - 3 Pages

.... personal details by hackers and the inability of consumers to feel and examine the products. These advantages and disadvantages will probably result in several major changes in the way business is conducted in the future. offers many advantages to both consumers and firms. It is very convenient for consumers as there are no shop hours and orders can be placed any time of the day. also allows companies to have much larger markets, once you are on the Internet you are everywhere. A customer in Japan can buy exactly what a customer in the UK buys from the same electronic store. The capability to purchase products at ease from all over the world would eventually result in th ....


Chemistry-soaps And Detergents
655 Words - 3 Pages

.... process called saponification, the alkaline hydrolysis of fats and oils. It is essentially the reverse of esterification. O O R-C-O-R’ + NaOH ---- R-C-O-Na+ + R’OH Ester(fat) + base(caustic soda) ---- salt of fatty acid(soap) + alcohol(glycerol). Caustic potash (potassium hydroxide) can be used instead of caustic soda (sodium hydroxide)but is more expensive. The base used to come from wood ash containing potassium carbonate which formed potash as this was not plentiful it made soap a luxury. The cheapest source of the ester is animal and vegetable fats and ....


Experimental Protein
3276 Words - 12 Pages

.... measured absorbance. This correlation helped to draft a regression line, which was useful in finding concentration of protein extract. An electrotransfer on PVDF membrane was done after the gel electrophoresis. These migrations of proteins based on their molecular weight of three solutions. Using the polyacrilamide electrophoresis, proteins were separated based on their molecular weight. Extraction buffer did not produce protein bands. Proteins with huge molecular weight did not travel far from the gel while low molecular weight proteins traveled long distance . Overall banding contrast was compared between same sample with different transferred volumes. The protei ....


Chlorofluorocarbons (CFCs)
697 Words - 3 Pages

.... is also a feed stock for the production of CFC-11 and CFC-12. CFCs are released in relatively small quantities, but one kilogram of the most common CFCs may have a direct effect on climate 1000 times large than that of one kilogram of carbon. In addition over the last two decades the percentage increase of CFCs in the atmosphere has been higher than any other greenhouse gas. By 1990 the increase was 4-12% a year. CFCs also destroy ozone - itself a greenhouse gas - their net effect on climate is unclear. The strength of the indirect effect of ozone depletion depends on variables such as temperature of the upper atmosphere and cannot yet be measured with any ....


Climatology
370 Words - 2 Pages

.... as continuous snow or deserts. One of the most popular classification systems is the Koppen Climate Classification system, which gives different climates three letters that describe that climate. The Koppen Climate Classification system is comparatively simple and is based on a triad of letter symbols. The first (capital) letter is the critical one; the A climates are humid and tropical; the B climates are very dry; the C climates are humid and mild; the D climates reflect increasing cold; and the E climates mark the polar areas. The first letter is followed by two more letters that further define the climate of that region. The second letter represents and expl ....


Introduction To Evolution
3618 Words - 14 Pages

.... rock. Changes occur in living organisms that serve to increase their adaptability, for survival and reproduction, in changing environments. Evolution apparently has no built-in direction purpose. A given kind of organism may evolve only when it occurs in a variety of forms differing in hereditary traits, that are passed from parent to offspring. By chance, some varieties prove to be ill adapted to their current environment and thus disappear, whereas others prove to be adaptive, and their numbers increase. The elimination of the unfit, or the "survival of the fittest," is known as Natural Selection because it is nature that discards or favors a particular being. Evo ....


Leprosy 2
3112 Words - 12 Pages

.... known about leprosy and then attempts to investigate certain aspects of the disease that are unknown. A description of the classification, mechanism of infection, transmission, distribution, and treatment of the disease will be provided. After reviewing the background material, a great deal of questions may arise as to how exactly this disease is spread from person to person and what conditions promote infection. For example, one may wish to investigate the following: 1) Mycobacterium leprae as yet to be cultured in laboratory media? Why? 2) Why is leprosy so prevalent in some parts of the world (i.e. India) but not in others? 3) How does leprosy become so widespread in ....



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