11,722 research outputs found

    UPDATED GEOGRAPHIC DISTRIBUTIONS OF MICHIGAN HERPETOFAUNA:: A SYNTHESIS OF OLD AND NEW SOURCES

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    Recently a comprehensive overview of reptiles and amphibians in Michigan was published. Unfortunately, the distributions of the species represented were compiled before widespread accessibility to technological tools providing greater access to museum and historical records as well as citizen science efforts. To update the known ranges of Michigan herpetofauna, published literature, museum collections, and photographic vouchers submitted to an online database were examined and 339 new county and island records were added, updating the maps for 48 of Michigan’s 55 known species of reptiles and amphibians. I also present the first published list of Michigan amphibians that includes two new plethodontid salamanders, the Northern Dusky Salamander (Desmognathus fuscus) and Southern Two-lined Salamander (Eurycea cirrigera). This paper serves as an example of the wealth of information available to scientists that may have previously been unobtainable, and can be used for the distribution of herpetofauna elsewhere

    Understanding the Cultural Value of 'In Harmony-Sistema England'

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    This research project on which this paper reports was designed to explore questions of cultural value in relation to the schools music project In Harmony-Sistema England. Our core research focus has been upon the ways in which children, their teachers and tutors, and their families understand the value of their participation in IHSE initiatives. The project engaged with three case studies of IHSE initiatives (based in Norwich, Telford and Newcastle) and qualitative data was gathered with primary school children, school staff, parents and IHSE musicians in all three cases

    Spectral flow and Dixmier traces

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    We obtain general theorems which enable the calculation of the Dixmier trace in terms of the asymptotics of the zeta function and of the heat operator in a general semi-finite von Neumann algebra. Our results have several applications. We deduce a formula for the Chern character of an odd L(1,){\mathcal L}^{(1,\infty)}-summable Breuer-Fredholm module in terms of a Hochschild 1-cycle. We explain how to derive a Wodzicki residue for pseudo-differential operators along the orbits of an ergodic \IR^n action on a compact space XX. Finally we give a short proof an index theorem of Lesch for generalised Toeplitz operators

    Unbounded Fredholm Operators and Spectral Flow

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    We study the gap (= "projection norm" = "graph distance") topology of the space of (not necessarily bounded) self--adjoint Fredholm operators in a separable Hilbert space by the Cayley transform and direct methods. In particular, we show that the space is connected contrary to the bounded case. Moreover, we present a rigorous definition of spectral flow of a path of such operators (actually alternative but mutually equivalent definitions) and prove the homotopy invariance. As an example, we discuss operator curves on manifolds with boundary.Comment: 23 pages, 2 figures; 09/10/2001 minor corrections, Proposition characterizing the range of the Riesz transformation added; 02/12/2004 very final version 1.0.2, minor correction

    Ground Systems Development Environment (GSDE) interface requirements analysis: Operations scenarios

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    This report is a preliminary assessment of the functional and data interface requirements to the link between the GSDE GS/SPF (Amdahl) and the Space Station Control Center (SSCC) and Space Station Training Facility (SSTF) Integration, Verification, and Test Environments (IVTE's). These interfaces will be involved in ground software development of both the control center and the simulation and training systems. Our understanding of the configuration management (CM) interface and the expected functional characteristics of the Amdahl-IVTE interface is described. A set of assumptions and questions that need to be considered and resolved in order to complete the interface functional and data requirements definitions are presented. A listing of information items defined to describe software configuration items in the GSDE CM system is included. It also includes listings of standard reports of CM information and of CM-related tools in the GSDE

    Introducing Vireo: an ETD Submittal and Management System for DSpace

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    4th International Conference on Open RepositoriesThis presentation was part of the session : DSpace User Group PresentationsDate: 2009-05-20 03:30 PM – 05:00 PMThe Texas Digital Library (TDL) is a consortium of public and private institutions from across the state of Texas; a major project in TDL is the development of a state-wide repository for managing the entire life-cycle of electronic theses and dissertations (ETDs). The Texas ETD Repository is a large effort that span multiple independent initiatives, all of which interact to support the overall task of managing ETDs in Texas. This presentation will describe Vireo, the customized submission and workflow management application that TDL developed for DSpace, and it's role within the Texas ETD Repository. We will describe its current implementation as a Manakin aspect and theme, and discuss the future plans for the application, including its release to the repository community under an open source license.Institute for Museum and Library Sciences; Texas Digital Librar

    Eligibility for Social Security Disability Insurance

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    In order to understand whom among the non-disabled older population experiences a health problem later in life and applies for Social Security Disability Insurance, it is necessary to investigate patterns of coverage and reasons for non-coverage. This paper shows that while the safety net program covers most American workers, a substantial group of older women is not covered. In this sense, the program is not helpful to workers reaching their late 50’s and early 60’s with health-related problems.
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