3,746 research outputs found
Author Interview with Brian D. Anderson
No full textBrian D. Anderson was our feature artist of the week, October 19th - 23rd, 2020.https://jagworks.southalabama.edu/vid_presentations/1010/thumbnail.jp
Art Behind Gaming: Brian D. Anderson
No full textA discussion with author Brian D. Anderson about worldbuilding in fantasy. Part of the Art Behind Gaming Online Con.https://jagworks.southalabama.edu/vid_presentations/1046/thumbnail.jp
Competition policy. by Brian Ellis
No full texttag=1 data=Competition policy. by Brian Ellis
tag=2 data=Ellis, Brian
tag=3 data=Australian Rationalist,
tag=5 data=46
tag=6 data=Autumn/Winter 1998
tag=7 data=51-56.
tag=8 data=ECONOMIC CONDITIONS
tag=9 data=COMPETITION%CORPORATISATION%NATIONAL COMPETITION POLICY%PRIVATE SECTOR PUBLIC SECTOR EFFECTIVENESS%SERVICE DELIVERY%SOCIAL POLICY%INNOVATION
tag=10 data=Examines the Government's National Competition Policy in relation to encouraging R&D, and the corporisation of public services and utilites. The author is Emeritus Professor of Philosophy at La Trobe UNiversity and Vice-President of the Rationalist Society of Australia. Article Taken from What's New.
tag=13 data=CABExamines the Government's National Competition Policy in relation to encouraging R&D, and the corporisation of public services and utilites. The author is Emeritus Professor of Philosophy at La Trobe UNiversity and Vice-President of the Rationalist Society of Australia. Article Taken from What's New
Phase-Function Normalization in the 3-D Discrete-Ordinates Solution of Radiative Transfer – PART I: Conservation of Scattered Energy and Asymmetry Factor
No full textThe conditions for which conversation of scattered energy and phase-function asymmetry factor after discrete-ordinates methods (DOM) directional discretization for 3-D radiative transfer in anisotropic scattering media breaks down are examined. Directional discretization in anisotropic scattering media is found to alter the scattering asymmetry factor—a second-type of ‘‘false scattering.’’ Phase-function normalization which conserves scattered energy alone cannot correct this problem, and conservation of the asymmetry factor is simultaneously required. A normalization technique developed by the authors, which was successfully tested in 2-D asymmetric cylindrical-coordinate radiative transfer analysis, is intensively examined and validated with benchmark problems in 3-D Cartesian coordinates. In Part I of this study, the degree of anisotropy for which normalization is necessary to conserve these inherent quantities is presented for various phase-function approximations and discrete quadrature sets.Peer reviewed
Obesity in the United States
No full text" Obesity increases the risk of a number of health conditions including hypertension, adverse lipid concentrations, and type 2 diabetes. The prevalence of obesity in the United States increased during the last decades of the 20th century. More recently there appears to have been a slowing of the rate of increase or even a leveling off. Given the health risks of obesity and its high prevalence, it is important to continue to track the prevalence of obesity among U.S. adults and children. This report presents the most recent national estimates of obesity in the United States based on measured weight and height." - p. 1Cynthia L. Ogden, Margaret D. Carroll, Brian K. Kit, and Katherine M. Flegal."CS229086.""January 2012."Includes bibliographical references (p. 7)
Consumption of added sugar among U.S. children and adolescents, 2005-2008
No full textThe consumption of added sugars, which are sweeteners added to processed and prepared foods, has been associated with measures of cardiovascular disease risk among adolescents, including adverse cholesterol concentrations. Although the percent of daily calories derived from added sugars declined between 1999-2000 and 2007-2008, consumption of added sugars remains high in the diets of Americans. The 2010 Dietary Guidelines recommend limiting total intake of discretionary calories, which include added sugars and solid fats, to 5%-15% of daily caloric intake yet many Americans continue to exceed these recommendations. This data brief presents results for added sugar consumption among U.S. children and adolescents for 2005-2008. - p. 1R. Bethene Ervin, Brian K. Kit, Margaret D. Carroll, Cynthia L. Ogden.Includes bibliographical references (p. 7)
Phase-Function Normalization in the 3-D Discrete-Ordinates Solution of Radiative Transfer – PART II: Benchmark Comparisons
No full textRadiative transfer in a cubic enclosure, subject to varying conditions, is determined using the discrete-ordinates method (DOM) with the two normalization techniques introduced in Part I of this study. Their predictions are compared with Monte Carlo simulations. For all cases, false scattering due to directional discretization cannot be corrected when the old technique, which solely conserves scattered energy, is implemented; and thus, signifi- cant discrepancies exist when compared to Monte Carlo results. The new technique, which conserves both scattered energy and the asymmetry factor, is able to retain original scatter- ing properties after directional discretization, leading to improved accuracy when compared to Monte Carlo. In addition, a parametric study is presented to gauge the impact of asym- metry-factor conservation on media with various optical properties. Finally, the impact of normalization is investigated for both ultrafast radiative transfer and ballistic incidence with varying incident angle.Peer reviewed
Improved treatment of anisotropic scattering in radiation transfer analysis using the finite volume method
No full textDiscretization of the integral anisotropic-scattering term in the equation of radiative transfer will result in two kinds of numerical errors: alterations in scattered energy and asymmetry factor. Though quadrature flexibility with large angular directions and further solid-angle splitting in the finite volume method (FVM) allow for reduction/minimization of these errors, computational efficiency is adversely impacted. A phase-function normalization technique to get rid of these errors is simpler and is applied to the three-dimensional (3-D) FVM for the first time to improve anisotropic radiation transfer computation accuracy and efficiency. FVM results are compared to Monte Carlo and discrete-ordinates method predictions of radiative heat transfer in a cubic enclosure housing a highly anisotropic participating medium. It is found that the FVM results generated using the normalization technique conform accurately to the results of the other two methods with little impact on computational efficiency.Peer reviewed
Comparison of Quadrature Schemes in DOM for Anisotropic Scattering Radiative Transfer Analysis
No full textThe commonly implemented level-symmetric SN quadrature set for the discrete-ordinates method suffers from a limitation in discrete direction number to avoid physically unrealistic weighting factors. This limitation can have an adverse impact for determining radiative transfer, as directional discretization results in angular false scattering errors due to distortion of the scattering phase function in addition to the ray effect. To combat this limitation, several higher-order quadrature schemes with no directional limitation have been developed. Here, four higher-order quadrature sets (Legendre-equal weight, Legendre-Chebyshev, triangle tessellation, and spherical ring approximation) are implemented for determination of radiative transfer in a 3-D cubic enclosure containing participating media. Heat fluxes obtained at low direction number are compared to the SN quadrature and Monte Carlo predictions to gauge and compare quadrature accuracy. Investigation into the reduction/elimination of angular false scattering with increase in direction number, including heat flux accuracy with respect to Monte Carlo and computational efficiency, is presented. It is found that while the higher-order quadrature sets are able to effectively minimize angular false scattering, the number of directions required is extremely large, and thus it is more computationally efficient to implement proper phase-function normalization to obtain accurate results.Peer reviewed
Total and high-density lipoprotein cholesterol in adults; National Health and Nutrition Examination Survey, 2009-2010
No full textThe percentage of adults aged 20 and over with high total cholesterol has declined substantially since 1999\u20132000. For 2009\u20132010, the percentage of adults with high total cholesterol was 13.4%, thus meeting the Healthy People 2010 target of 17% or less [Objective (12\u201314)]. Substantial and steady decreases in the prevalence of high total cholesterol among men aged 40 and over and women aged 60 and over during the 1999\u20132010 period resulted in achievement of the Healthy People 2010 objective in all sex and racial-and-ethnic groups and in all sex and age groups except for women aged 40 and over. For 2009\u20132010, only 11.9% of women compared with 31.4% of men aged 20 and over had low HDL cholesterol. The percentage with low HDL cholesterol is consistently higher in men than in women within each race and ethnicity group. Because women typically have higher HDL cholesterol levels than men, the percentage with low HDL cholesterol is expected to be lower in women than in men. The percentage of adult men with low HDL cholesterol is lower in non- Hispanic black men than in Hispanic or non-Hispanic white men. During 2009-2010, approximately 68% of adults--including 66% of men and 70% of women-- had their cholesterol checked within the past 5 years. These percentages have not changed significantly from 2005\u20132006, when 65% of men and 71% of women had their cholesterol checked within the past 5 years. Furthermore, the Healthy People 2010 objective for cholesterol screening of at least 80% [Objective (12\u201315)] was not met. Less than one-half of Hispanic men were screened within the past 5 years compared with 70% of non-Hispanic white men and nearly 62% of non-Hispanic black men. Among U.S. adults in 2009\u20132010, those with adverse concentrations of total cholesterol (15%) and HDL cholesterol (25%) are at risk for coronary heart disease, including heart attacks. The U.S. Department of Health and Human Services recently announced the Million Hearts Initiative with a goal of preventing 1 million heart attacks and strokes over the next 5 years. High cholesterol is one major risk factor for heart attacks.CDC-INFO Pub ID 221248221248Margaret D. Carroll, Brian K. Kit and David A. Lacher.Includes bibliographical references
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