17,317 research outputs found

    Is a Massive Tau Neutrino Just What Cold Dark Matter Needs?

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    The cold dark matter (CDM) scenario for structure formation in the Universe is very attractive and has many successes; however, when its spectrum of density perturbations is normalized to the COBE anisotropy measurement the level of inhomogeneity predicted on small scales is too large. This can be remedied by a tau neutrino of mass 1\MeV - 10\MeV and lifetime 0.1sec100sec0.1\sec - 100\sec whose decay products include electron neutrinos because it allows the total energy density in relativistic particles to be doubled without interfering with nucleosynthesis. The anisotropies predicted on the degree scale for ``τ\tauCDM'' are larger than standard CDM. Experiments at e±e^\pm colliders may be able to probe such a mass range.Comment: 9 pages LaTeX plus 4 figures (available upon request) FERMILAB--Pub--94/026-

    Start-Up Costs in American Research Universities

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    Our report briefly summarizes findings from the 2002 Cornell Higher Education Research Institute survey of start-up costs at the over 220 universities classified as Research and Doctoral universities by the Carnegie Foundation in 1994. It reports the mean start-up cost packages across institutions for new assistant professors and senior faculty, broken down by institutional type (public/private), Carnegie classification and field (biology, chemistry, engineering, physics and astronomy) and also discuses the sources of funding for start-up costs

    Small business lending in low- and Moderate-income areas: The effects of credit scoring

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    Credit scoring systems ; Lender liability ; Small business

    Selected Legal Issues Affecting Securitization

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    Leadership for Learning Improvement in Urban Schools

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    Examines urban school leaders' efforts to improve the quality of teaching and learning by supporting progress for diverse students, sharing leadership work, and aligning resources. Analyzes school environments and coordination of various leadership roles
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