11,661 research outputs found

    Both loved and feared: third party punishers are view as formidable and likeable, but these reputational benefits may only be open to dominant individuals (dataset)

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    The zip file contains the data for the three studies in SPSS (.sav format). The zip folder also includes an Excel file which describes the variables for each study.A link will be added to the associated article in PLoS One once it has been published. http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0110045 The article associated with this dataset are available in ORE at http://hdl.handle.net/10871/16699Third party punishment can be evolutionarily stable if there is heterogeneity in the cost of punishment or if punishers receive a reputational benefit from their actions. A dominant position might allow some individuals to punish at a lower cost than others and by doing so access these reputational benefits. Three vignette-based studies measured participants’ judgements of a third party punisher in comparison to those exhibiting other aggressive/dominant behaviours (Study 1), when there was variation in the success of punishment (Study 2), and variation in the status of the punisher and the type of punishment used (Study 3). Third party punishers were judged to be more likeable than (but equally dominant as) those who engaged in other types of dominant behaviour (Study 1), were judged to be equally likeable and dominant whether their intervention succeeded or failed (Study 2), and participants believed that only a dominant punisher could intervene successfully (regardless of whether punishment was violent or non-violent) and that subordinate punishers would face a higher risk of retaliation (Study 3). The results suggest that dominance can dramatically reduce the cost of punishment, and that while individuals can gain a great deal of reputational benefit from engaging in third party punishment, these benefits are only open to dominant individuals. Taking the status of punishers into account may therefore help explain the evolution of third party punishmen

    Isospectral deformations of closed Riemannian manifolds with different scalar curvature

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    We construct the first examples of continuous families of isospectral Riemannian metrics that are not locally isometric on closed manifolds, more precisely, on Sn×TmS^n\times T^m, where TmT^m is a torus of dimension m≄2m\ge 2 and SnS^n is a sphere of dimension n≄4n\ge 4. These metrics are not locally homogeneous; in particular, the scalar curvature of each metric is nonconstant. For some of the deformations, the maximum scalar curvature changes during the deformation.Comment: amstex, 10 pages, no figure

    Building Community Partnerships with Adults with Disabilities: A Case Study Using Narrative Literacy as a Conduit for Shared Learning

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    Building relationships between traditional college students and adults with disabilities is an important yet little understood aspect of civic engagement. The case study presented in this paper built one such relationship by utilizing a shared narrative project to construct an equitable collaborative experience between a set of students from Wagner College and some adults with intellectual disabilities from a community organization, Lifestyles for the Disabled. We also discuss learning outcomes of this project, which included a deeper understanding and connection between people who learn differently. David S. Gordon is Assistant Professor of Education at Wagner College in Staten Island, NY. Cyril Ghosh is Assistant Professor of Political Science and Public Affairs at Wagner College

    An integrated capacitance bridge for high-resolution, wide temperature range quantum capacitance measurements

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    We have developed a highly-sensitive integrated capacitance bridge for quantum capacitance measurements. Our bridge, based on a GaAs HEMT amplifier, delivers attofarad (aF) resolution using a small AC excitation at or below kT over a broad temperature range (4K-300K). We have achieved a resolution at room temperature of 10aF per root Hz for a 10mV AC excitation at 17.5 kHz, with improved resolution at cryogenic temperatures, for the same excitation amplitude. We demonstrate the performance of our capacitance bridge by measuring the quantum capacitance of top-gated graphene devices and comparing against results obtained with the highest resolution commercially-available capacitance measurement bridge. Under identical test conditions, our bridge exceeds the resolution of the commercial tool by up to several orders of magnitude.Comment: (1)AH and JAS contributed equally to this work. 6 pages, 5 figure

    Cotunneling drag effect in Coulomb-coupled quantum dots

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    In Coulomb drag, a current flowing in one conductor can induce a voltage across an adjacent conductor via the Coulomb interaction. The mechanisms yielding drag effects are not always understood, even though drag effects are sufficiently general to be seen in many low-dimensional systems. In this Letter, we observe Coulomb drag in a Coulomb-coupled double quantum dot (CC-DQD) and, through both experimental and theoretical arguments, identify cotunneling as essential to obtaining a correct qualitative understanding of the drag behavior.Comment: Main text: 5 pages, 5 figures; SM: 11 pages, 5 figures, 1 tabl
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