4,416 research outputs found

    Engines of Innovation: The Entrepreneurial University in the Twenty-First Century

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    Thorp, Holden and Buck Goldstein. Engines of Innovation: The Entrepreneurial University in the Twenty-First Century. Chapel Hill: University of North Carolina Press, 2010. Engines of Innovation: The Entrepreneurial University in the Twenty-First Century is an exploration into the design of a collaborative academic institution where silos of discipline-specific competency and tradition disappear and innovation reigns supreme

    Utilization of Problem-Based Learning in an Entrepreneurship Business Planning Course

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    This article demonstrates the implementation and efficacy of Problem-Based Learning (PBL) in an undergraduate entrepreneurship business planning course. Throughout the course, ill-structured problems arise that require independent thinking and ongoing problem solving with students taking responsibility for their own learning. The course incorporates the latest classroom technology and how that technology is utilized to deliver self-directed learning. The PBL methodology is then evaluated in light of anonymous student survey results. The objective is to create a framework for future assessment in evaluating PBL in the business planning course

    Disproportionate Distribution of Stock Owership Among Initial Founders in Startup Ventures: Survey Results and a Ranking of Factors

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    To date little research has been performed as to how founders of startup ventures determine initial distribution of ownership. In many instances, distribution of ownership is proportionally divided, even though individual contributions to the venture may vary widely. In these circumstances, a disproportionate distribution of ownership would be more reflective of individual contributions to the venture, and more importantly, determine the appropriate incentive (or "reward") for each founder. A survey of business owners was administered, and counter to much of the existing literature, a significant percentage of the respondents divided ownership disproportionately. The survey provides a ranking of factors that can contribute to disproportionate distribution of ownership

    Toroidal Perturbations of Friedmann-Robertson-Walker Universes

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    Explicit expressions are found for the axisymmetric metric perturbations of the closed, flat and open FRW universes caused by toroidal motions of the cosmic fluid. The perturbations are decomposed in vector spherical harmonics on 2-spheres, but the radial dependence is left general. Solutions for general odd-parity ll-pole perturbations are given for either angular velocities or angular momenta prescribed. In particular, in case of closed universes the solutions require a special treatment of the Legendre equation.Comment: 13 page

    A Survey of Merger Remnants II: The Emerging Kinematic and Photometric Correlations

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    This paper is the second in a series exploring the properties of 51 {\it optically} selected, single-nuclei merger remnants. Spectroscopic data have been obtained for a sub-sample of 38 mergers and combined with previously obtained infrared photometry to test whether mergers exhibit the same correlations as elliptical galaxies among parameters such as stellar luminosity and distribution, central stellar velocity dispersion (σ\sigma_{\circ}), and metallicity. Paramount to the study is to test whether mergers lie on the Fundamental Plane. Measurements of σ\sigma_{\circ} have been made using the Ca triplet absorption line at 8500 {\AA} for all 38 mergers in the sub-sample. Additional measurements of σ\sigma_{\circ} were made for two of the mergers in the sub-sample using the CO absorption line at 2.29 \micron. The results indicate that mergers show a strong correlation among the parameters of the Fundamental Plane but fail to show a strong correlation between σ\sigma_{\circ} and metallicity (Mg2_{2}). In contrast to earlier studies, the σ\sigma_{\circ} of the mergers are consistent with objects which lie somewhere between intermediate-mass and luminous giant elliptical galaxies. However, the discrepancies with earlier studies appears to correlate with whether the Ca triplet or CO absorption lines are used to derive σ\sigma_{\circ}, with the latter almost always producing smaller values. Finally, the photometric and kinematic data are used to demonstrate for the first time that the central phase-space density of mergers are equivalent to elliptical galaxies. This resolves a long-standing criticism of the merger hypothesis.Comment: Accepted Astronomical Journal (to appear in January 2006

    Do Rotations Beyond the Cosmological Horizon Affect the Local Inertial Frame?

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    If perturbations beyond the horizon have the velocities prescribed everywhere then the dragging of inertial frames near the origin is suppressed by an exponential factor. However if perturbations are prescribed in terms of their angular momenta there is no such suppression. We resolve this paradox and in doing so give new explicit results on the dragging of inertial frames in closed, flat and open universe with and without a cosmological constant.Comment: 12 page

    Functional Mobility Outcomes in Telehealth and In-Person Assessments for Wheeled Mobility Devices

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    The purpose of this study was to compare telehealth and in-person service delivery models for wheeled mobility devices in terms of functional outcomes. We hypothesized that clinically significant improvements in functional mobility measured by the Functional Mobility Assessment (FMA) will occur in individuals receiving both telehealth and in-person clinic evaluations. A total of 27 Veterans receiving telehealth visits were compared to 27 individuals seen in clinic, selected from a database, matching for age, gender, and primary diagnosis. All mean individual item and total FMA scores in both groups increased from Time 1 to Time 2. Within the telehealth group, all changes in individual item and total FMA scores were statistically significant, with changes in 8 of 10 items meeting threshold for clinical significance (change >1.85 points). Within the clinic group, changes in 7 of 10 individual items and total FMA scores were statistically significant, and these same 7 items met threshold for clinical significance. Change scores for individual item and total FMA scores did not differ significantly between the two groups. A larger and clinically significant change in transfer score was seen in the telehealth group, suggesting telehealth visits may confer an advantage in being able to assess and address transfer issues in the home

    Centrifugal force induced by relativistically rotating spheroids and cylinders

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    Starting from the gravitational potential of a Newtonian spheroidal shell we discuss electrically charged rotating prolate spheroidal shells in the Maxwell theory. In particular we consider two confocal charged shells which rotate oppositely in such a way that there is no magnetic field outside the outer shell. In the Einstein theory we solve the Ernst equations in the region where the long prolate spheroids are almost cylindrical; in equatorial regions the exact Lewis "rotating cylindrical" solution is so derived by a limiting procedure from a spatially bound system. In the second part we analyze two cylindrical shells rotating in opposite directions in such a way that the static Levi-Civita metric is produced outside and no angular momentum flux escapes to infinity. The rotation of the local inertial frames in flat space inside the inner cylinder is thus exhibited without any approximation or interpretational difficulties within this model. A test particle within the inner cylinder kept at rest with respect to axes that do not rotate as seen from infinity experiences a centrifugal force. Although the spacetime there is Minkowskian out to the inner cylinder nevertheless that space has been induced to rotate, so relative to the local inertial frame the particle is traversing a circular orbit.Comment: 12 pages, 2 figure
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