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Papers On Sciences
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Dental Fillings: History, Types and Uses
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An 8 page discussion of the
history of dental fillings. Traces the filling from ancient times to
present exploring the various types of materials which were used. Explains that the choice of filling is related to performance but also to availability and cost. Notes that the evolutionary path of fillings is tied as well to the evolutionary paths of other dentistry aspects such as drill evolution and the development of molding techniques and
materials. Bibliography lists 7 sources.
Filename: PPdentFi.wps
Denture Cleansers
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5 pages in length. Maintaining one's own teeth is certainly a preferable alternative to having dentures; however, when the time comes to make such a decision, there are a number of considerations to be made beyond merely the fit. If dentures are not properly cleansed on a regular basis, this can lead to the same type of oral decay found in those without dentures. Denture cleansers are manufactured to help continue the process of good oral hygiene by effectively removing the build up of debris from prosthetic dental appliances. Powder, tablet or paste, the choice of material is solely a personal decision based upon past experience and preference. The write discusses various aspects of denture cleansers. Bibliography lists 10 sources.
Filename: TLCdentr.wps
Desert Surfaces: A Process Based Analysis of Radiation, Heat,
Precipitation, and Storage
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A 7 page overview of the processes which
impact deserts. Summarizes geologic, climatological and biological
processes which interplay to both shape desert environments and which
are shaped by those environments. Outlines the importance of topography, substrate characteristics, precipitation, vegetative cover
(both type and extent), radiation, and cloud cover in particular and concludes that each of these factors is interrelated with the other. Bibliography lists 6 sources.
Filename: PPdesert.wps
Desertification in the Sudan
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A paper which looks at the causes of desertification in the Sudan, and suggests national and international policies which might be implemented to address this issue. Bibliography lists 3 sources
Filename: JLdessud.rtf
Designer Babies
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An 8 page research paper that investigates the possible ethical ramifications of biotechnological advancements that predict the advent of "designer babies," that is, children whose genes have been manipulated for certain traits or bodily characteristics. Based on futuristic predictions, the writer argues against the morality of such technology. Bibliography lists 6 sources.
Filename: khdeskid.rtf
Designing a Research Framework
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This 4 page paper helps the student design research to test an hypothesis. The framework shown is the framing of the null hypothesis (H0) and the alternative hypothesis (H1), the decision on what level of confidence to choose, looking at which statistics to test and deciding on which tests are most suitable. The example used is testing to see if genetically modified food and non modified food are the same. The bibliography cites 4 sources.
Filename: TEstatest.rtf
Designing a Water Pipe System
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This 8 page paper examines the different aspects of water flow that need to be considered when designing a pipe system. These include water flow, velocity, friction loss and pressure as well as pipe material and the need to remember peak demand. The bibliography cites 3 sources.
Filename: TEwtrpip.rtf
Destiny or Circumstance?: Are Human Beings in Charge of Their Destiny?
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A 5 page discussion of destiny as it relates to the actional and nonactional theories. Associates the theory of biological determinism with the nonactional theory but observes other areas of research which indicate numerous factors, particularly parental involvement in our childhood, affect the way we live our lives. Concludes that there is some validity to the Actional Theory, the theory that it is us that determine our destiny. What becomes clear, however, is that our destinies are determined not only by factors which are under our control but also be predetermined factors such as our genes. Destiny therefore is predetermined in some instances but entirely under our control in others. Bibliography lists 5 sources.
Filename: PPdestin.wps
Development of the Human Brain
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This 7 page paper looks at some of the theories that try to explain who and why the human brain has developed into the current large and complex organ seen today. The paper loos at the arguments of bipedalism, the use of tools and development of language and the radiator theory. The bibliography cites 6 sources.
Filename: TEbraindev.rtf
Diamonds / Their Structure and Geologic Formation
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A 5 page overview of the gemstone known as a diamond. Includes information on diamond structure and geologic formation, including its presence in kimberlite formations. Bibliography lists 4 sources.
Filename: Diamond.wps
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