51,860 research outputs found

    Giving Voice to the Voiceless

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    The purpose of this study is to understand the experiences of matriculated, full time college students from a medium-sized Catholic, Liberal Arts College in the Northeast who identify as multi-racial or multi-ethnic, specifically identifying as coming from a white and non-white mixed background. In the ever-changing political climate in the United States, those who identify as mixed white and non-white backgrounds feel conflicted in how they ethnically or racially identify. Emerging adulthood (ages 18-25), and college experiences, are important years for identity development. This study tells the untold narratives of mixed non-white and white multi-racial, multi-ethnic individuals

    Committees Tackle the Deficit

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    Summarizes the recommendations of a presidential commission and private bipartisan committee for reducing the federal deficit by cutting healthcare costs, Social Security outlays, and discretionary spending, and by raising taxes

    Have Recent Budget Policies Contributed to Long-Run Fiscal Stability?

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    Examines developments in budget policies since January 2010; the president's 2011 budget, including economic stimulus and tax and spending policies; congressional action; and issues for health reform. Considers their effect on long-term sustainability

    Selecting Good Drain Tile

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    Evaluation of the use of on-board spacecraft energy storage for electric propulsion missions

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    On-board spacecraft energy storage represents an under utilized resource for some types of missions that also benefit from using relatively high specific impulse capability of electric propulsion. This resource can provide an appreciable fraction of the power required for operating the electric propulsion subsystem in some missions. The most probable mission requirement for utilization of this energy is that of geostationary satellites which have secondary batteries for operating at high power levels during eclipse. The study summarized in this report selected four examples of missions that could benefit from use of electric propulsion and on-board energy storage. Engineering analyses were performed to evaluate the mass saved and economic benefit expected when electric propulsion and on-board batteries perform some propulsion maneuvers that would conventionally be provided by chemical propulsion. For a given payload mass in geosynchronous orbit, use of electric propulsion in this manner typically provides a 10% reduction in spacecraft mass

    Units of Evidence for Analyzing Subdisciplinary Difference in Data Practice Studies

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    Digital libraries (DLs) are adapting to accommodate research data and related services. The complexities of this new content spans the elements of DL development, and there are questions concerning data selection, service development, and how best to align these with local, institutional initiatives for cyberinfrastructure, data-intensive research, and data stewardship. Small science disciplines are of particular relevance due to the prevalence of this mode of research in the academy, and the anticipated magnitude of data production. To support data acquisition into DLs – and subsequent data reuse – there is a need for new knowledge on the range and complexities inherent in practice-data-curation arrangements for small science research. We present a flexible methodological approach crafted to generate data units to analyze these relationships and facilitate crossdisciplinary comparisons.Library Services (LG-06-07-0032-07) and National Science Foundation (OCI-0830976).is peer reviewe

    Determination of the radionuclide content of feces and urine from astronauts engaged in space flight

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    Measurement of radiation exposure of Apollo 7, 8, 9, and 10 astronauts by determination of radionuclide content of feces and urin
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