1,009 research outputs found

    Competitive drive in varsity and club collegiate student-athletes: The correlation between motivation, influences, and coach-athlete relationship

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    The current study explores the factors that drive Division I collegiate athletes to be competitive. Student-athletes from James Madison University, both at the club and varsity levels were surveyed in this study. There were 129 total student athletes that participated (67 males and 62 females). Exactly 89 participants were varsity athletes and 40 were club athletes. Athletes were presented with an in-person survey that included several demographic questions followed by the Task and Ego Orientation in Sport Questionnaire (TEOSQ). The TEOSQ scored athletes on their task and ego orientation during sport participation. The quantitative results of this study do not show a significant correlation between task and ego orientations between male and female athletes at both the varsity and club levels. Independent samples t-tests were run to determine statistical differences between males and females on the task and ego subscales of the TEOSQ. One-way ANOVAs were used to determine if there were any significant differences among task and ego orientation among the three club teams as well as between the varsity teams. There were no significant differences seen except for a p value of .010 between varsity men’s baseball and varsity women’s golf. Keywords: task orientation, ego orientation, achievement motivation, goal theory, motivation, intrinsic motivation, extrinsic motivation, amotivation, and coach-athlete relationshi

    Ohio's statewide land use inventory: An operational approach for applying LANDSAT data to state, regional and local planning programs

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    The programmatic, technical, user application, and cost factors associated with the development of an operational, statewide land use inventory from LANDSAT data are described. The LANDSAT multispectral data are subjected to geometrical and categorical processing to produce map files for each of the 200 fifteen (15) minute quads covering Ohio. Computer compatible tapes are rescanned to produce inventory tapes which identify eight (8) Level I land use categories and a variety of Level II categories. The inventory tapes are processed through a series of ten (10) software programs developed by the State of Ohio. The net result is a computerized inventory which can be displayed in map or tabular form for various geographic units, at a variety of scales and for selected categories of usage. The computerized inventory data files are applied to technical programs developed by the various state agencies to be used in state, regional, and local planning programs

    Constructions of generalized complex structures in dimension four

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    Four-manifold theory is employed to study the existence of (twisted) generalized complex structures. It is shown that there exist (twisted) generalized complex structures that have more than one type change loci. In an example-driven fashion, (twisted) generalized complex structures are constructed on a myriad of four-manifolds, both simply and non-simply connected, which are neither complex nor symplectic

    Exotic smooth structures on 4-manifolds with zero signature

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    For every integer k≥2k\geq 2, we construct infinite families of mutually nondiffeomorphic irreducible smooth structures on the topological 44-manifolds (2k−1)(S2×S2)(2k-1)(S^2\times S^2) and (2k-1)(\CP#\CPb), the connected sums of 2k−12k-1 copies of S2×S2S^2\times S^2 and \CP#\CPb.Comment: 6 page

    Stretched chemical bonds in Si6H6: A transition from ring currents to localized pi-electrons?

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    Motivated by solid-state studies on the cleavage force in Si, and the consequent stretching of chemical bonds, we here study bond stretching in the, as yet unsynthesized, free space molecule Si6H6. We address the question as to whether substantial bond stretching (but constrained to uniform scaling on all bonds) can result in a transition from ring current behaviour, characteristic say of benzene at its equilibrium geometry, to localized pi-electrons on Si atoms. Some calculations are also recorded on dissociation into 6 SiH radicals. While the main studies have been carried out by unrestricted Hartree-Fock (HF) theory, the influence of electron correlation has been examined using two forms of density functional theory. Planar Si6H6 treated by HF is bound to be unstable, not all vibrational frequencies being real. Some buckling is then allowed, which results in real frequencies and stability. Evidence is then provided that the non-planar structure, as the Si-Si distance is increased, exhibits pi-electron localization in the range 1.2-1.5 times the equilibrium distance

    Simply connected minimal symplectic 4-manifolds with signature less than - 1

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    For each pair (e,σ) of integers satisfying 2e + 3σ ≥ 0, σ ≤ - 2, and e + σ ≡0 (mod 4), with four exceptions, we construct a minimal, simply connected symplectic 4-manifold with Euler characteristic e and signature σ. We also produce simply connected, minimal symplectic 4-manifolds with signature zero (resp. signature-1) with Euler characteristic 4k (resp. 4k + 1) for all k ≥ 46 (resp. k ≥ 49). © European Mathematical Society 2010

    ATS-6 spacecraft: In-flight antenna pattern measurement

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    Antenna patterns, principally associated with the 9.1 meter parabolic antenna of the ATS-6 spacecraft, were measured while in orbit at quasi-stationary synchronous altitude. Controlling the spacecraft attitude permitted a scanning of the spacecraft antenna pattern over the Rosman ground station, thus achieving the measurement of the antenna pattern contour. Patterns were determined in terms of relative gain referenced in position to the spacecraft body coordinates by means of signal power measurements made using a linear detector. These data were subsequently correlated with the attitude data to define the antenna patterns. Antenna patterns measured are presented and compared with available preflight patterns

    Development of Shuttle Vectors for Transformation of Diverse Rickettsia Species

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    Plasmids have been identified in most species of Rickettsia examined, with some species maintaining multiple different plasmids. Three distinct plasmids were demonstrated in Rickettsia amblyommii AaR/SC by Southern analysis using plasmid specific probes. Copy numbers of pRAM18, pRAM23 and pRAM32 per chromosome in AaR/SC were estimated by real-time PCR to be 2.0, 1.9 and 1.3 respectively. Cloning and sequencing of R. amblyommii AaR/SC plasmids provided an opportunity to develop shuttle vectors for transformation of rickettsiae. A selection cassette encoding rifampin resistance and a fluorescent marker was inserted into pRAM18 yielding a 27.6 kbp recombinant plasmid, pRAM18/Rif/GFPuv. Electroporation of Rickettsia parkeri and Rickettsia bellii with pRAM18/Rif/GFPuv yielded GFPuv-expressing rickettsiae within 2 weeks. Smaller vectors, pRAM18dRG, pRAM18dRGA and pRAM32dRGA each bearing the same selection cassette, were made by moving the parA and dnaA-like genes from pRAM18 or pRAM32 into a vector backbone. R. bellii maintained the highest numbers of pRAM18dRGA (13.3 – 28.1 copies), and R. parkeri, Rickettsia monacensis and Rickettsia montanensis contained 9.9, 5.5 and 7.5 copies respectively. The same species transformed with pRAM32dRGA maintained 2.6, 2.5, 3.2 and 3.6 copies. pRM, the plasmid native to R. monacensis, was still present in shuttle vector transformed R. monacensis at a level similar to that found in wild type R. monacensis after 15 subcultures. Stable transformation of diverse rickettsiae was achieved with a shuttle vector system based on R. amblyommii plasmids pRAM18 and pRAM32, providing a new research tool that will greatly facilitate genetic and biological studies of rickettsiae
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