180,246 research outputs found

    Stabilization of heterodimensional cycles

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    We consider diffeomorphisms ff with heteroclinic cycles associated to saddles PP and QQ of different indices. We say that a cycle of this type can be stabilized if there are diffeomorphisms close to ff with a robust cycle associated to hyperbolic sets containing the continuations of PP and QQ. We focus on the case where the indices of these two saddles differ by one. We prove that, excluding one particular case (so-called twisted cycles that additionally satisfy some geometrical restrictions), all such cycles can be stabilized.Comment: 31 pages, 9 figure

    Venezuela: The Shifting Organizational Framework for the Police

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    Recent political polarization in Venezuela has exacerbated longer term tensions over the organization and control of the police. Additionally, there is ongoing and widespread public dissatisfaction with the nature of policing. The patrimonial and authoritarian nature of much policing and the heterogeneity of training programs and resource provision pose considerable challenges to reform. Nevertheless, today’s police officers are right to wonder who they will be working for, what rank they will have, and what kind of work they will be given in 2018

    Sexual harassment in sports

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    The purpose of this talk today is to give you an overview of the current state of research on sexual harassment in sport and to raise questions about the links between harassment, sexual abuse and women's health and safety is sport
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