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2009

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Structural Studies Of Biopolymers Using Computer Simulations, Optical And Magnetic Spectroscopy, Subhasish Chatterjee Jan 2009

Structural Studies Of Biopolymers Using Computer Simulations, Optical And Magnetic Spectroscopy, Subhasish Chatterjee

Dissertations, Theses, and Capstone Projects

Biopolymers are essential components of numerous natural and synthetic macromolecular assemblies. In the present study, the structural properties of biopolymers ranging from fungal melanins to synthetic nucleic acids were investigated using spectroscopic methods and theoretical modeling. (1) Computational modeling and molecular dynamics simulations were used to study the structural properties of a short single-stranded (ss) DNA. The dependence of the conformational stability and flexibility of the ssDNA on the thermodynamic conditions of the system was demonstrated. (2) Time-resolved fluorescence spectroscopy involving an organic donor-quencher pair was utilized to study the conformational properties of Y-shaped DNA. Results highlighted the different distances …

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The Relationship Between Academic Achievement And Physical Fitness In Adolescents, George William Centeio Jan 2009

The Relationship Between Academic Achievement And Physical Fitness In Adolescents, George William Centeio

Dissertations and Theses @ UNI

In today's schools, there is a major emphasis placed on academic proficiency particularly in the areas of reading, math, and science. Society is also seeing increases in the number of people who are obese and inactive. Some believe that increasing physical activity and/or improving physical fitness will result in better academic achievement of students in school. This study examined the relationship between academic achievement and physical fitness in adolescents. The participants included 200 ( 118 male, 82 female), high school students, at a rural high school located in the Midwestern region of the United States. Student's third trimester, end of …

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Further Delineation Of The Role Of The Amygdala In Face Processing And Racial Categorization, Osman Afzal Chowdhry Jan 2009

Further Delineation Of The Role Of The Amygdala In Face Processing And Racial Categorization, Osman Afzal Chowdhry

Dissertations and Theses @ UNI

DNA exonerations in the legal system have increased steadily since 1989 from one or two per year to an average of 21 per year since 2001. A disquieting number of these exonerations originated from wrongful convictions following cross-racial identifications. Explaining the prevalence of erroneous cross-racial identifications centers on the Cross Race Effect (CRE), a phenomena whereby recognition for one's own race greatly outweighs recognition ability for other-race faces. Forty years of research in this area has produced a number of competing explanations. Recent neurological evidence has demonstrated separate neural regions for the processing of same-race and other-race faces as well …

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