4,463 research outputs found

    Surgery on SL~×En\widetilde{\Bbb{SL}}\times\Bbb{E}^n-manifolds

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    We show that although closed SL~×En\widetilde{\Bbb{SL}}\times\Bbb{E}^n-manifolds do not admit metrics of nonpositive sectional curvature, the arguments of Farrell and Jones can be extended to show that such manifolds are topologically rigid, if n≥2n\geq2.Comment: 7 pages, AMS-LaTeX file, To appear in the Canadian Mathematical Bulletin

    Barotrauma and COVID-19

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    IUCN Elephant Survey and Conservation Programme: Summary of Interim Report on Elephants in Kenya

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    Preliminary summary of evidence on the status and population trends of elephants in Kenya, condensed from the original

    The Effects of Tart Cherry Supplement on Markers of Inflammation and Quality of Life in Arthritic Patients

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    Please refer to the pdf version of the abstract located adjacent to the title

    The impact of state appropriations and grants on access to higher education and outmigration

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    pre-printEducation policymakers at all levels of government have long been interested in finding ways to entice more students to go to college. This goal has been driven by the belief that, as people acquire more education, they not only reap personal benefits from their investment in education, but they also create spillover benefits for others in society (referred to by economists as "positive externalities") in ways such as raising their community's standard of living, reducing crime rates, and enhancing the region's quality of life

    Hollow Fibers Can Accelerate Conductive Filament Formation

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    \u3ci\u3eSwan Song\u3c/i\u3e / \u3ci\u3eFinality\u3c/i\u3e / \u3ci\u3eShe of the Lake\u3c/i\u3e

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    Swan Song: From this window, bronzed by the swollen eye of the sun, I hear the cry of swans Finality: At dusk, the night-raven came, Perched on the chimney and croaked, Echoing, oppressive She of the Lake: The healing touch of water quenches fire In man and sword alike: a cooling death Comes welcome after warring and desir

    The fibered isomorphism conjecture for complex manifolds

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    In this paper we show that the fibered isomorphism conjecture of Farrell and Jones corresponding to the stable topological pseudoisotopy functor is true for the fundamental groups of a large class of complex manifolds. A consequence of this result is that the Whitehead group, reduced projective class groups and the negative K-groups of the fundamental group of these manifolds vanish whenever the fundamental group is torsion free. We also prove the same results for a class of real manifolds.Comment: accepted for publication in Acta Mathematica Sinica, English Serie

    What matters in student loan default: a review of the research literature

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    Journal ArticleFederal higher education policy has shifted over the past few decades from grants to loans as the primary means for providing access to postsecondary education for low and moderate-income families. With this shift, policy makers have begun tracking student loan default rates as a key indicator of the efficacy of student loan programs. This effort requires a closer examination of how to define default and what default signifies: What is an acceptable rate of default? What factors contribute to default? Should default rates be used as indicators of institutional quality or loan program efficacy. These questions lead to further investigation of factors influencing default, such as whether default is a function of the characteristics of students or of the institutions they attend, and whether the types of loans borrowed influence the probabilities of default. To help answer these and related questions, this study reviewed the literature of research on student loan default conducted between 1978 and 2007, and identified 41 of the higher quality studies, the findings of which are summarized here

    AN EXTENSION OF SOME RESULTS DUE TO JARDEN

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    This paper defines some generalized Fibonacci and Lucas sequences which satisfy arbitrary order linear recurrence relations and which answer a problem posed by Jarden in 1966 about generalizing an elegant result for a connection between even and odd subscripted Fibonacci and Lucas numbers
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