3,278 research outputs found

    Spatial Correlates of U.S. Heights and BMIs, 2002

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    Aiming to further explore possible underlying causes for the recent stagnation in American heights, this paper describes the result of analysis of the commercial U.S. Sizing Survey. Using zip codes available in the data set, we consider geographic correlates of height such as local poverty rate, median income, and population density. We find that after adjusting for variables known to influence height such as income and education, population density is negatively correlated with height among white men, but only marginally among white women. Similar analysis of Body Mass Index (BMI) also shows a negative correlation with population density after adjustment for income, education, and age for both sexes. Local economic conditions as measured by median income, unemployment rate or poverty rate do not have a strong correlation with height or weight after adjusting for individual income and education

    Underperformance in affluence: the remarkable relative decline in American heights in the second half of the 20th-century

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    Objective: We use the complete set of NHES and NHANES data collected between 1959 and 2004 in order to construct trends for the physical stature of the non-Hispanic white and black US adult population and compare them to those of Western- and Northern-Europeans. Method: Regression analysis is used to estimate the trend in US heights stratified by gender and ethnicity holding income and educational attainment constant. Results: US heights have stabilized at mid-century and a perio0d of stagnation set in with the birth cohorts 1955-74, concurrent with continual rapid increases in heights in Western and Northern Europe. The American population had been the tallest in the world for two centuries until World War II, but by the end of the 20th century fell behind many of their European counterparts. Only since the most recent birth cohorts 1975-83 is some gain apparent among whites but not among blacks. The relationship between height and income and between height and educational attainment has not changed appreciably over time for either men or women. Conclusion: We conjecture that the American health-care system, as well as the relatively weak welfare safety net might be the reason why human growth in the United States has not performed as well in relative terms as one would expect on the basis of income. The comparative pattern bears some similarly to that of life expectancy insofar as the US is also lagging behind in that respect

    Method and apparatus for securing to a spacecraft Patent

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    Method and apparatus for connecting two spacecraft with probe of one inserted in rocket engine nozzle of other spacecraf

    Comparing Strategies for Estimating Constituency Opinion from National Survey Samples

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    Political scientists interested in estimating how public opinion varies by constituency have developed several strategies for supplementing limited constituency survey data with additional sources of information. We present two evaluation studies in the previously unexamined context of British constituency-level opinion: an external validation study of party vote share in the 2010 general election and a cross-validation of opinion toward the European Union. We find that most of the gains over direct estimation come from the inclusion of constituency-level predictors, which are also the easiest source of additional information to incorporate. Individual-level predictors combined with post-stratification particularly improve estimates from unrepresentative samples, and geographic local smoothing can compensate for weak constituency-level predictors. We argue that these findings are likely to be representative of applications of these methods where the number of constituencies is large

    ALSEP termination report

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    The Apollo Lunar Surface Experiments Package (ALSEP) final report was prepared when support operations were terminated September 30, 1977, and NASA discontinued the receiving and processing of scientific data transmitted from equipment deployed on the lunar surface. The ALSEP experiments (Apollo 11 to Apollo 17) are described and pertinent operational history is given for each experiment. The ALSEP data processing and distribution are described together with an extensive discussion on archiving. Engineering closeout tests and results are given, and the status and configuration of the experiments at termination are documented. Significant science findings are summarized by selected investigators. Significant operational data and recommendations are also included

    Nepal : Healthcare and Sanitation Issues Resulting From Frequent Natural Disasters in Nepal

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    This Public Health Brief calls to attention the issues plaguing Nepal as a result of both frequent natural disasters and poor healthcare infrastructure. The geographic characteristics of Nepal are shown to be a major factor in the damage and aftermath of natural disasters such as earthquakes. Due to its status as a poor and economically weakened country, Nepal must rely heavily on outside aid in order to alleviate the pressure of frequently occurring natural disasters. Despite work being done by several Non-Governmental Organizations, Nepal has a long way to go before they are able to independently manage the outcomes of disasters and achieve acceptable sanitation standards. With a cooperative relationship and continued support, significant progress can be made to help Nepal improve and eventually solidify their public health care systems

    How Justice Came to Webster County

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    How Justice Came to Webster County

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