8,561 research outputs found

    Data registration and integration requirements for severe storms research

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    Severe storms research is characterized by temporal scales ranging from minutes (for thunderstorms and tornadoes) to hours (for hurricanes and extra-tropical cyclones). Spatial scales range from tens to hundreds of kilometers. Sources of observational data include a variety of ground based and satellite systems. Requirements for registration and intercomparison of data from these various sources are examined and the potential for operational forecasting application of techniques resulting from the research is discussed. The sensor characteristics and processing procedures relating to the overlay and integrated analysis of satellite and surface observations for severe storms research are reviewed

    Configuration description and load analysis for the Atmospheric and Oceanographic Information Processing System (AOIPS)

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    A computer system for processing image data is described. It essentially consists of two minicomputer systems. System components are listed and discussed, and flow charts are shown

    New species of Chariergus White and Ethemon Thomson (Coleoptera, Cerambycidae, Compsocerini

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    Two new species of Chariergus White are described from Brazil: Chariergus caeruleus, from Bahia, Minas Gerais and Espirito Santo and C. paranaensis., from Parana, Santa Catarina and Rio Grande do SuI. Ethemon brevicorne, sp. n. is described from Argentina (Cordoba). A key to species of Chariergus is added

    Advanced technologies for Mission Control Centers

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    Advance technologies for Mission Control Centers are presented in the form of the viewgraphs. The following subject areas are covered: technology needs; current technology efforts at GSFC (human-machine interface development, object oriented software development, expert systems, knowledge-based software engineering environments, and high performance VLSI telemetry systems); and test beds

    Why is Polygyny More Prevalent in Western Africa?: An African Slave Trade Perspective

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    Polygyny rates are higher in Western Africa than in Eastern Africa. The African slave trades explain this difference. More male slaves were exported in the trans-Atlantic slave trades from Western Africa, while more female slaves were exported in the Indian Ocean and Red Sea slave trades from Eastern Africa. The slave trades led to prolonged periods of abnormal sex ratios, which impacted the rates of polygyny across Africa. In order to assess these claims, we construct a unique ethnicity-level data set linking current rates of polygyny with historical trade flow data from the African slave trades. Our OLS estimates show a positive correlation between the trans-Atlantic slave trades and polygyny. An IV approach shows the relationship is causal and statistically signicant. We also provide cross-country evidence corroborating our findings.slave trades; polygyny; Africa; development

    The long and winding road for selective androgen receptor modulators

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    Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/138326/1/bcp13345.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/138326/2/bcp13345_am.pd

    A pressure drop investigation of immiscible liquid-liquid micro flows

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    This paper was presented at the 2nd Micro and Nano Flows Conference (MNF2009), which was held at Brunel University, West London, UK. The conference was organised by Brunel University and supported by the Institution of Mechanical Engineers, IPEM, the Italian Union of Thermofluid dynamics, the Process Intensification Network, HEXAG - the Heat Exchange Action Group and the Institute of Mathematics and its Applications.Over the past decade there has been a considerable increase in the research on lab-on-a-chip applications that focuses on designing analytical chemical and biological devices. One such application is the possibility of integrating the functional steps of DNA analysis into a micro-total-analysis system (μTAS). Encapsulation of PCR samples within an inert carrier fluid allows the samples to be transported as micro-reactors. Plug based micro reactors suspended in an inert carrier fluid have a lot of promise in microfluidic analytical devices, offering a reduction in resident-time, reagents and labour with an increase in through-put, accuracy and quality. The development of a thin wetting film between the wall of the capillary and the micro reactor increase the interfacial area of the plug and can also intensify the internal circulation occurring within the plug. Only recently has work being preformed on the fluid mechanics that characterise this scale. An experimental study is carried out to study the effect capillary diameter, carrier viscosity and flow rate has on the pressure drop under bi-phasic flow conditions

    Atmospheric and Oceanographic Information Processing System (AOIPS) system description

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    The development of hardware and software for an interactive, minicomputer based processing and display system for atmospheric and oceanographic information extraction and image data analysis is described. The major applications of the system are discussed as well as enhancements planned for the future

    Electronic Theses and Dissertations: Two Surveys of Editors and Publishers

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    In two separate surveys, editors and publishers of established academic journals were invited to respond to online questions exploring issues surrounding prior publication in an electronic environment, with particular emphasis on electronic theses and dissertations (ETDs), With response rates of27% and 58% respectively, certain conclusions and patterns could be discerned. The most noticeable pattern was a lack of consensus on the question of electronic dissemination and how it mayor may not contribute to the designation of research as published . The differences in opinion are varied and will be presented in both statistical and narrative format, with results from both surveys being presented
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