522 research outputs found

    Downtown Two-Way Conversion

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    The City of South Bend has launched the Smart Streets initiative to improve the role of streets through implementation of the Complete Streets philosophy. As part of this initiative, the Downtown Two-Way Conversion Plan was developed with a goal of revitalizing South Bend’s downtown. This session will describe the Smart Streets initiative, discuss the traffic study of the Downtown Two-Way Conversion Plan, and provide an update on the conversion process

    Altitude Limits for Rotating Vector Model Fitting of Pulsar Polarization

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    Traditional pulsar polarization sweep analysis starts from the point dipole rotating vector model (RVM) approximation. If augmented by a measurement of the sweep phase shift, one obtains an estimate of the emission altitude (Blaskiewicz, Cordes, & Wasserman). However, a more realistic treatment of field line sweepback and finite altitude effects shows that this estimate breaks down at modest altitude ~ 0.1R_{LC}. Such radio emission altitudes turn out to be relevant to the young energetic and millisecond pulsars that dominate the \gamma-ray population. We quantify the breakdown height as a function of viewing geometry and provide simple fitting formulae that allow observers to correct RVM-based height estimates, preserving reasonable accuracy to R ~ 0.3R_{LC}. We discuss briefly other observables that can check and improve height estimates

    Summary of Panel Discussion on Skills and Social Mobility

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    This paper follows the discussion of a number of factors surrounding skills and social mobility by a broad panel of participants

    Can Carbon Sinks be Operational? An RFF Workshop Summary

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    An RFF Workshop brought together experts from around the world to assess the feasibility of using biological sinks to sequester carbon as part of a global atmospheric mitigation effort. The chapters of this proceeding are a result of that effort. Although the intent of the workshop was not to generate a consensus, a number of studies suggest that sinks could be a relatively inexpensive and effective carbon management tool. The chapters cover a variety of aspects and topics related to the monitoring and measurement of carbon in biological systems. They tend to support the view the carbon sequestration using biological systems is technically feasible with relatively good precision and at relatively low cost. Thus carbon sinks can be operational.carbon, sinks, global warming, sequestration, forests
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