5,149 research outputs found

    CHILDHOOD OBESITY IN THE U.S.: HOW EFFECTIVE ARE SCHOOL PREVENTION PROGRAMS?

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    This study uses a logistic regression to analyze the 2004-2005 Arkansas Center for Health Improvement body mass index data from four school districts in Arkansas. We conclude that the probability of elementary school children being overweight or at risk of being overweight depends on economic factors, demographics, and food availability.Health Economics and Policy,

    The impact of SARS-CoV-2 Omicron variant on the receptor binding domain conformational dynamics and interaction with human ACE2

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    "The COVID-19 pandemic caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has led to over 6.6 million deaths worldwide, as of 27 November 2022. The SARS-CoV-2 infection mechanism involves the viral binding to the angiotensin-converting enzyme 2 (ACE2) host receptor through the Spike (S) protein receptor-binding domain (RBD). Thus, understanding the molecular details of binding is of pharmaceutical interest. Nevertheless, the unbound RBD presents conformational changes in the “ridge” region that are hypothesized to also affect receptor recognition.(...)

    The Development Strategy for the Food and Beverage Service Study Program as One of the Superior Study Programs at the Politeknik Pariwisata Makassar

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    The interest of students to continue studying at the Politeknik Pariwisata Makassar is very large and increases from year to year.. This study aims to formulate a development strategy for the Food and Beverage Service Management study program as one of the superior study programs at Makassar Tourism Polytechnic. This research uses descriptive quantitative method. Respondents in this study totaled 241 consisting of 140 male respondents and 101 female respondents who were a combination of students, lecturers/staff of the Food and Beverage Service Management study program at Makassar Tourism Polytechnic, hotel/restaurant employees, entrepreneurs, employees of other companies, and that hasn't worked. The data collection techniques used in this study were: questionnaires, interviews, Focus Group Discussion (FGD), and literature study. The data analysis technique was carried out in three stages, namely the input stage, the matching stage and the decision stage. The conclusion of this research is that the analysis results from the IFAS matrix show that the strength factor of the study program is much greater than the weakness factor so that the study program has strengths or advantages that can be developed. Meanwhile, the results of the analysis from the EFAS matrix show that the opportunities the study program has are greater than the threat factors so that the study program has a greater chance of being developed. As for the results of the QSPM matrix analysis, the TAS value that has been listed is that the W-O strategy gets the highest value of 6,354, the W-T strategy is 6,027 then the S-O strategy is 5,976 and finally the S-T strategy is 5,869. That is, the development strategy of the MTH study program is compiled in 14 priority strategies from 20 formulated strategies consisting of the W - O Strategy (5 strategies), the W - T Strategy (4 strategies), the S - O Strategy (3 strategies), and the S - T (2 strategies)

    Karakter Anatomi Daun Kultur Purwoceng Pascakonservasi in Vitro

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    Leaf Anatomy Characteristic of Pruatjan Cultures Post In Vitro. Evaluation of anatomical characteristics regenerant planlet of purwoceng (Pimpinella pruatjan Molk.) cultivated on conservation medium was observed to determine the difference of characteristics performance of the planlet grown on conservation medium and those that was maintained on the normal medium. Stomata was microscopically observed on abaxial leaf paradermal section that preparated by whole mount method and leaf structure on cross section by paraffin method. The result showed that stomata density was greater on the planlets regenerated in the conservation medium but stomata length was lower than those on the normal medium. Upper epidermis, mesofil and lower epidermis length of the regenerant on the conservation medium were lower than those on the normal medium. Sorbitol and paclobutrazol applied reduced the performance of regenerated spesies than those of planlet maintained on the normal medium. Combination of both application resulted in anatomical character differences on the plants regenerated on normal medium

    Too Litter, Too Late: Economic Logistics of Transporting Nutrient-Rich Poultry Litter Out of Nutrient-Saturated Regions

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    Export of excess litter from concentrated animal production regions has become a pressing issue. A break even price for poultry litter in nutrient-deficient areas was identified through a math programming model using willingness to pay data from crop producers. Results indicate that a $16 subsidy is needed to sustain a long-term poultry litter market.Environmental Economics and Policy,

    Alternative Model Selection Using Forecast Error Variance Decompositions in Wholesale Chicken Markets

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    Although Vector Autoregressive models are commonly used to forecast prices, specification of these models remains an issue. Questions that arise include choice of variables and lag length. This article examines the use of Forecast Error Variance Decompositions to guide the econometrician’s model specification. Forecasting performance of Variance Autoregressive models, generated from Forecast Error Variance Decompositions, is analyzed within wholesale chicken markets. Results show that the Forecast Error Variance Decomposition approach has the potential to provide superior model selections to traditional Granger Causality tests.broiler markets, DAGs, forecasting, market structure, VAR, Agribusiness, Demand and Price Analysis, Livestock Production/Industries, Risk and Uncertainty, C53, D4, L1, Q00,

    Pengaruh Gaya Kepemimpinan Dan Loyalitas Karyawan Terhadap Kinerja Karyawan Di Rumah Sakit Islam Hidayatullah YOGYAKARTA

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    Background of the study: The background of this research is Hidayatullah Islamic Hospital (RSI) Yogyakarta and is done through leadership interferential, employee's loyalty gives influence toward employee's performance. (1) The phenomenon factor of harmonious relationship between leader and subordinate. (2) Factor of employee's performance which has not yet indicating employment conduciveness. (3) Factor of employee's loyalty toward the lack of leader's concern on employee's performance and opportunity to receive compensation. (4) The phenomenon of employee's performance; the employee's incompetence in comprehending leader's instruction and the individual employee's minimum responsibility which hinder the work performance. Research Methodology: Data were compiled through interview and questionnaire, and were classified into primary and secondary data. The sample of the research consisted of 40 respondents. Method used in analyzing the data was linearity test, significance test of multiple linear regression coefficient, t test, F test, R2. Result: The results of the research include: (1) The leader of Hidayatullah Islamic Hospital Yogyakarta doesn't always impose sanction to its employee but instead puts trust on the head of unit to manage employee, conducts control/supervisory toward subordinate's performance periodically in every line of work. (2) Employee's loyalty is correlated with employee's job and total self-image, as well as the purpose similarity between the individual and the hospital management. (3) The compatibility among willingness, achievement, and result gained is believed to create an individual with high work ethic, professionalism and commitment for its institution and also for its work achievement. Conclusion: The conclusions of the research are; (1) There is a positive and significant influence of leadership style toward the employee's performance at Hidayatullah islamic hospital Yogyakarta. (2) There is a positive and significant influence of employee's loyalty toward employee's performance at Hidayatullah islamic hospital Yogyakarta. (3) The independent variable (leadership style and employee's loyalty) gives positive and significant influence toward the employee's performance at Hidayatullah Islamic hospital Yogyakart

    EDAC software implementation to protect small satellites memory

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    Radiation is a well-known problem for satellites in space. It can produce different negative effects on electronic components which can provoke errors and failures. Therefore, mitigating these effects is especially important for the success of space missions. One of the techniques to increase the reliability of memory chips and reduce transient errors and permanent faults is Error Detection and Correction (EDAC). EDAC codes are characterised by the use of redundancy to detect and correct errors. This final project consists in the implementation of a software EDAC algorithm to protect the main memory of a microcontroller. The implementation requirements and the issues of software EDAC are described and the test results are commented

    Prepared for Bioterrorism Events? A Study of the Grain and Oilseed Sector

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    One of the most crucial problems facing the U.S. economy is the possibility of a terrorist attack on its food sector. The implications can be profound for its stakeholders, who are highly dependent on this sector for their economic livelihood as well as their food supplies. The U.S. Bioterrorism Act of 2002 was enacted to improve the ability of the United States to prevent, prepare for and respond to bioterrorism and other public health emergencies. One of the important features of the U.S. Bioterrorism Act of 2002 is its emphasis on prevention, a change from prior legislation that focused on punishments after an incidence had occurred. The U.S. Bioterrorism Act does not address food safety issues in general; its focus is to prevent intentional contamination. The objective of this study was to assess the preparedness to potential bioterrorism in the grain and oilseed sector based on facility security expenditures and history of security breaches. The study was conducted as a research activity under the multistate project NC-1016 “Economic Assessment of Changes in Trade Arrangements, Bio-terrorism Threats and Renewable Fuels Requirements on the U.S. Grain and Oilseed Sector.” In addition to assessing preparedness, the study investigated the relationship between adoption of security measures and breaches in facility security. Finally the study documents, for a small sample, the extent to which grain and oilseed facilities appear to be following regulations that implement the U.S. Bioterrorism Act.bioterrorism, grain and oilseed sector, Bioterrorism Act of 2002, NC-1016, Agribusiness, Agricultural and Food Policy, Marketing, Political Economy, I18, K23, Q13, Q18,
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