10,444 research outputs found

    Civic Aspirations: Why Some Higher Education Faculty are Reconnecting Their Professional and Public Lives

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    In higher education today, most institutions reward faculty for such things as research productivity, course enrollment, and academic completion. There is little incentive for them to focus on educating students in their civic development. In spite of this, civic engagement programs are popping up across higher education, and faculty have played a critical role in initiating these programs on their campuses. Building on research by Harry Boyte and KerryAnn O'Meara. The Kettering Foundation seeks to make visible the motivations of these faculty. In this study for Kettering, based on faculty interviews, Claire Snyder-Hall explains this movement using Hannah Arendt's concept of "public happiness," a sense of fulfillment from engaging with others. Beyond higher education, this study has relevance across fields to practitioners struggling to integrate their civic aspirations into their professional work

    Limiting Behaviour of the Mean Residual Life

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    In survival or reliability studies, the mean residual life or life expectancy is an important characteristic of the model. Here, we study the limiting behaviour of the mean residual life, and derive an asymptotic expansion which can be used to obtain a good approximation for large values of the time variable. The asymptotic expansion is valid for a quite general class of failure rate distributions--perhaps the largest class that can be expected given that the terms depend only on the failure rate and its derivatives.Comment: 19 page

    Strategic misrepresentation in online dating: The effects of gender, self-monitoring, and personality traits

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    Yeshttps://us.sagepub.com/en-us/nam/manuscript-submission-guideline

    Dissection of Melanogenesis with Small Molecules Identifies Prohibitin as a Regulator

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    SummaryBioactive compounds can be used to selectively modulate gene function. We utilized a chemical genetic approach to dissect the mammalian pigmentation pathway and identify protein regulators. We screened a tagged library of 1170 small molecules in a cell-based assay and discovered a class of pigment-enhancing chemicals. From this class we characterized the small molecule melanogenin. Using melanogenin bound to an affinity matrix and amino acid sequencing, we identified the mitochondrial protein, prohibitin, as an intracellular binding target. Studies employing siRNA demonstrate that prohibitin is required for melanogenin to exert its propigmentary effects and reveal an unsuspected functional role for this protein in melanin induction. This represents a mechanism by which propigmentary signals are transduced and ultimately provides a potential target for the treatment of pigmentary disorders

    Improved Satellite Robustness Through Application of Erosion Resistance and High Emissivity Coatings

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    Spacecraft can experience charging throughout operation due to high flux of incident electrons (ex. during geomagnetic substorm). As a result, different materials/components may experience a range of potentials which may lead to plasma-induced arcs, damaging spacecraft components. 54% of spacecraft failures are due to enhancement of radiation belt particles and magnetospheric plasma that cause charging/discharing Current space charge mitigation technologies: Metallic coatings System chassis ground leads to as many surfaces as possible Not effective in severe sub-storm conditions and do not enable local application of coatin

    Exact master equation for a noncommutative Brownian particle

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    We derive the Hu-Paz-Zhang master equation for a Brownian particle linearly coupled to a bath of harmonic oscillators on the plane with spatial noncommutativity. The results obtained are exact to all orders in the noncommutative parameter. As a by-product we derive some miscellaneous results such as the equilibrium Wigner distribution for the reservoir of noncommutative oscillators, the weak coupling limit of the master equation and a set of sufficient conditions for strict purity decrease of the Brownian particle. Finally, we consider a high-temperature Ohmic model and obtain an estimate for the time scale of the transition from noncommutative to ordinary quantum mechanics. This scale is considerably smaller than the decoherence scale.Comment: Latex file, 28 pages, Published versio

    First observation of 13^{13}Li ground state

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    The ground state of neutron-rich unbound 13^{13}Li was observed for the first time in a one-proton removal reaction from 14^{14}Be at a beam energy of 53.6 MeV/u. The 13^{13}Li ground state was reconstructed from 11^{11}Li and two neutrons giving a resonance energy of 12080+60^{+60}_{-80} keV. All events involving single and double neutron interactions in the Modular Neutron Array (MoNA) were analyzed, simulated, and fitted self-consistently. The three-body (11^{11}Li+n+nn+n) correlations within Jacobi coordinates showed strong dineutron characteristics. The decay energy spectrum of the intermediate 12^{12}Li system (11^{11}Li+nn) was described with an s-wave scattering length of greater than -4 fm, which is a smaller absolute value than reported in a previous measurement.Comment: Accepted for publication in Phys. Rev. C as a Rapid Communicatio

    R-Parity Violation at HERA ?

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    We examine the possibility that the high-Q^2 events seen at HERA are due to the production and decay of squarks of R-parity violating supersymmetry. The relevant R-parity violating coupling(s) is identified and shown to lie between 0.03 and 0.26. Consequences of such a coupling at other experiments, such as the LEP and Tevatron, are discussed

    Soliton molecules in trapped vector Nonlinear Schrodinger systems

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    We study a new class of vector solitons in trapped Nonlinear Schrodinger systems modelling the dynamics of coupled light beams in GRIN Kerr media and atomic mixtures in Bose-Einstein condensates. These solitons exist for different spatial dimensions, their existence is studied by means of a systematic mathematical technique and the analysis is made for inhomogeneous media

    Higher Education Exchange: 2012

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    This annual publication serves as a forum for new ideas and dialogue between scholars and the larger public. Essays explore ways that students, administrators, and faculty can initiate and sustain an ongoing conversation about the public life they share.The Higher Education Exchange is founded on a thought articulated by Thomas Jefferson in 1820: "I know no safe depository of the ultimate powers of the society but the people themselves; and if we think them not enlightened enough to exercise their control with a wholesome discretion, the remedy is not to take it from them, but to inform their discretion by education."In the tradition of Jefferson, the Higher Education Exchange agrees that a central goal of higher education is to help make democracy possible by preparing citizens for public life. The Higher Education Exchange is part of a movement to strengthen higher education's democratic mission and foster a more democratic culture throughout American society.Working in this tradition, the Higher Education Exchange publishes interviews, case studies, analyses, news, and ideas about efforts within higher education to develop more democratic societies
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