Dental Fillings: History, Types and Uses
[ send me this paper ]
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
[ send me this paper ]
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
[ send me this paper ]
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
[ send me this paper ]
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
[ send me this paper ]
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
[ send me this paper ]
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 Test To Assess a Link between the Emotion of Fear and the Amygdale
[ send me this paper ]
This 4 page paper designs a test to assess if there is any link between the amygdale within the brain and the emotional of fear in human subjects. The paper looks at the best way to image the responses in the brain and then at how issues such as ethics can be overcome and how the test could be conducted. The bibliography cites 1 source.
Filename: TEfearamy.rtf

Designing a Water Pipe System
[ send me this paper ]
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?
[ send me this paper ]
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
[ send me this paper ]
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
[ send me this paper ]
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

Did Birds Evolve From Dinosaurs?
[ send me this paper ]
A 5 page outline of current paleontological thought regarding the evolutionary path of birds and the question of whether or not they descended from dinosaurs. Bibliography lists four sources.
Filename: Dinobird.wps

Difference Between Qualitative and Quantitative Research
[ send me this paper ]
A 3 page research paper that discusses the differences between quantitative and qualitative research, as well as the debate ongoing in the scientific community about which is best. Bibliography lists 4 sources.
Filename: khqaqsff.rtf

Differences In The Way A Mammalian Cell And Yeast Cells Coordinate Cell Growth And Cell-Cycle Progression
[ send me this paper ]
This 3 page paper summarizes an article by Colon and Raff (2003) entitled “Differences in the way a mammalian cell and yeast cells coordinate cell growth and cell-cycle progression” which looks at the role of cell check points and the importance of extracellular signalling for mammalian cells when researched with the use of Schwamm cells. The bibliography cites 1 source.
Filename: TEcellgrow.rtf

Digestion: Travels of a Ham Sandwich and Glass of Milk, From Mouth to Excretion
[ send me this paper ]
A 10 page overview of the digestive system as seen through the digestive processes required in the consumption of a typical meal. Outlines the basic functions of the mouth, esophagus, stomach, small intestine, pancreas, liver, gallbladder, and large intestine. Bibliography lists 7 sources.
Filename: PPdigest.wps

Digital Radiography Versus Conventional Radiography
[ send me this paper ]
This 4 page paper compares the use of traditional and digital radiography looking at factors such as effectiveness, efficiently, cost and environmental impact. The bibliography cites 2 sources.
Filename: TEradiograh.rtf

Dinoflagellates
[ send me this paper ]
A 4 page overview of this classification of organism. The author reviews the phylogeny and the ecology of these incredible diverse creatures. Bibliography lists 5 sources.
Filename: PPdinofl.rtf