4,083 research outputs found

    PREDICTORS OF MOTIVATION TO PARTICIPATE IN WHITEWATER KAYAKING

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    Whitewater kayaking has grown in popularity over the past two decades (NSRE, 1994; NSRE, 2000). Because of this growth a better understanding of participants motivations could assist vendors, programmers, and decision making bodies for the future of the sport. The intent of this study is to explore the differences between the demographic variables age, sex, and skill level on the motivations to participate in whitewater kayaking. A secondary purpose was to assess the differences between the basic psychological needs (i.e., autonomy, competence, and relatedness) and motivation to participate in the sport of whitewater kayaking. Whitewater enthusiasts were recruited from across the United States via online forums to participate in a survey to identify basic needs and motivations. The basic psychological needs theory (Deci & Ryan, 1985) and the leisure motivation scale (Beard & Ragheb, 1983) was used to measure the motivations of whitewater kayakers. A self-identifying questionnaire focusing on age, gender, region, and whitewater class provided socio-demographics while a Likert-type scale was used for the quantitative statistics. Literature pertaining to outdoor recreation suggests leisure motivations and basic psychological needs play a role in the reasons for participation (Galloway, 2011; Mota & Esculcas, 2002; Netz & Raviv, 2010; O\u27Connell, 2010). The findings of this study largely support the literature suggesting a difference among leisure motivations, basic psychological needs, age, and skill. While limitations do exist pertaining to self-reporting, the implications of this study include programming, trainings, marketing, and safety education for whitewater kayakers

    The Origins Of Tallahasseee\u27s Racial Disturbance Plan: Segregation, Racial Tensions, and Violence During World War II

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    On the evening of Easter Sunday 1945, a quiet darkness fell on Tallahassee, home to Florida\u27s state government, the Florida State College for Women, and Dale Mabry Airfield. After a day of holiday festivities and celebration, activities in the small town began to wind down. Yet, around 10 p.m., the stillness was broken by the sounds of angry voices and shattering glass int he city\u27s predominantly black Frenchtown neighborhood. The calm of that Sunday evening was marred by a disturbance involving black troops Dale Mabry Field and Carrabelle\u27s Camp Gordon Johnston. the melee began, according to Tallahassee Chief of Police W. L. Prater, after about 200 to 250 coored troops...went into Otis McNeil\u27s place...and told McNeil...they were going overseas and...were going to take Frenchtown apart and paint it red. The riot raged throughout Frenchtown for over two hours

    Computational Design of Synthetic Antibodies for Consumer Diagnostic Tests

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    Described herein is a novel workflow for the synthesis of engineered peptide biomolecules that mimic the function and activity of monoclonal antibodies. The technique uses computational design and unnatural amino acid chemistry to deliver a comparable alternative to monoclonal antibodies. The software package Chimera8, developed at UCSF for molecular visualization and open-source for academic licenses, was used to select hits from a library of peptides that had strong predicted binding to disease biomarkers. Each candidate peptide was scored based on electrostatic interactions with the target and ranked in order of predicted binding affinity. The top hits were then engineered to include an l-DOPA unnatural amino acid as described previously10, which will form a covalent link to the target biomarker upon oxidation. The engineered peptide was then recombinantly expressed and purified from E. coli cell culture. The resulting synthetic antibody achieves target specificity from the peptide backbone and affinity from the covalent cross-linker, which rivals the specificity and affinity of traditional monoclonal antibodies. This technology presents an alternative to monoclonal antibody production, avoiding outsourced and intensive production and quality control

    Introduction and acknowledgement

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    Charmonium Potentials at Finite Temperature

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    The charmonium states at non-zero temperature are studied on anisotropic lattices with 2 dynamical quark flavours. Non-local operators are used to determine the Nambu-Bethe-Salpeter (NBS) wavefunctions via both conventional fitting methods and the Maximum Entropy Method. The interquark potential is determined from the solution of the Schrodinger equation, given the NBS wavefunction as input following the HAL QCD method. We observe a temperature dependent potential which becomes steeper as the temperature decreases

    Ab Initio Calculation of Finite Temperature Charmonium Potentials

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    The interquark potential in charmonium states is calculated for the first time in both the zero and non-zero temperature phases from a first-principles lattice QCD calculation. Simulations with two dynamical quark flavours were used with temperatures T in the range 0.4Tc . T . 1.7Tc, where Tc is the deconfining temperature. The correlators of point-split operators were analysed to gain spatial information about the charmonium states. A method, introduced by the HAL QCD collaboration and based on the Schrodinger equation, was applied to obtain the interquark potential. We find a clear temperature dependence, with the central potential becoming flatter (more screened) as the temperature increases
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