2,461 research outputs found

    FROM PAPER TO PLASTIC BY 2002: RETAILERS' PERSPECTIVE ON ELECTRONIC BENEFIT TRANSFER SYSTEMS FOR FOOD STAMPS

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    The Food Stamp Program (FSP) is working under the deadline of October 1, 2002, to coordinate a change from the current paper disbursement system of paper food stamps to an electronic transfer system of benefits, known as EBT. The Food and Nutrition Service of the U.S. Department of Agriculture has been studying the effectiveness of differing vehicles for benefit dispersal since the inception of the FSP in the 1960's. The merits of a direct cash payment have been compared to those of the paper system by the USDA and an array of professional groups and research organizations. The adoption of the electronic benefit transfer (EBT) system engenders a new set of questions about the effects of EBT on benefit recipients, retailers and the administering government agencies. Issues surrounding the transition from paper to plastic are still problematic for retailers in spite of the rapidly approaching deadline. National interoperability of EBT as well as fees involved with EBT operation are still points of contention for retailers. Anecdotal evidence from retailers also point to kinks in the institutional operation of EBT. Peak-loading problems with the electronic network system generate a host of undesirable consequences for benefit recipients and retailers. These problems impede the electronic system from taking advantage of the positive network effects that could arise from this new technology.Food Consumption/Nutrition/Food Safety, Food Security and Poverty, Marketing, Research and Development/Tech Change/Emerging Technologies,

    Microflanging of CuZn30 Specimens Using Electromagnetic Forming

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    In this research, electro-magnetic (EM) forming was investigated as an alternative process to form microscale components. Both EM and quasi-static flanging experiments were conducted with CuZn30 specimens of 0.127, 0.508 and 1.588 mm thicknesses that were heat treated to achieve 2 and 10 grains through the thickness to assess this parameter. Results from the quasi-static tests showed that as the sample size decreased with a constant grain size through thickness ratio, the springback angle increased. For the 0.127mm and 0.508mm thickness specimens, the EM results showed that the flanging angle increased as the power input increased from 1.7 to 3.7 kJ. For 3.7 kJ energies and above, complete 90 degree flanging with no springback was achieved for the 0.508mm specimens. However, EM flanging could not be achieved for the 1.588mm case. Microhardness testing conducted on specimens of similar flanging angles yielded no observable change in deformation between the EM and quasi-static processes for the 0.508mm specimens

    Analysis of Media Agenda-Setting Effects on Consumer Confidence in the Safety of the U.S. Food System

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    Results from continuous tracking of consumer confidence and media coverage of food safety events over a 67 week period between May 2008 and August 2009 are reported. An ordered probit model is used to test the hypothesis that media coverage of food safety events affects consumer confidence in the safety of the U.S. food system. The results show that media coverage significantly and negatively affected consumer confidence in the safety of nation’s food supply during the sample period. Socioeconomic and demographic factors such as geographic region, use of media source, household size, age, ethnicity, education, and gender also had significant affects on consumer confidence in the safety of United States food supply.Food Safety, Consumer Confidence, Mass media, ordered probit, Food Consumption/Nutrition/Food Safety,

    Consumer Confidence in the Food System, Media Coverage and Stock Prices of Food Companies: A Regression Analysis

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    A series of recent and serious food safety incidents have generated a national debate over the significant costs that they impose on various stakeholders - consumers, industry, or the government. This paper examines the impact of media coverage of food safety and defense issues on consumer confidence in food safety, and measures the response of stock prices of food companies to changes in consumer confidence. Results show that, increases in media coverage have a negative impact on consumer confidence, and that decreases in the levels of consumer confidence on food safety have a negative impact on stock prices of food companies, in particular for the larger firms. These findings confirm that the financial performance of food the industry is negatively affected by category-specific food safety events, and the effects of media coverage on consumer confidence in the safety of the food system.Agribusiness, Food Consumption/Nutrition/Food Safety,

    Temporal changes in temperature may suggest microhabitat shifts in larval spongillafly Climacia areolaris Hagen (Neuroptera: Sisyridae) abundance and density in a temperate freshwater lake

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    Abiotic factors such as temperature and depth are known to affect aquatic insect populations and are thought to be major variables that directly impact how communities are assembled and populations distributed. The purpose of this study was to examine the role of temperature and depth in structuring C. areolaris populations within a temperate freshwater quarry. Larval densities among individual sponges at different depths were determined over six months in a Pennsylvania quarry. Sponges from four depths (7.0 - 8.0 m; 8.1 - 9.0 m; 9.1 - 10.0 m and 10.1 - 12.0) were collected once per month (n = 3) using SCUBA. Temperature data were collected at four depths (n = 3 samples/depth). Larval densities significantly varied over the study period, but were not significantly different between depths on any date. Mean total larval density was significantly higher in March, April and May compared to dates later in the season. This result followed an inverse pattern where there was a significant effect of date on temperature, but no difference between depths. There was a detectable change in relative abundance of the sisyrid populations among the depths; the two shallowest depth ranges collectively represented \u3e50% of the population during March and April, but were \u3c 50% throughout the rest of the summer. There was also a significant negative relationship of larval density with temperature. Few studies have documented the role of abiotic factors such as depth and temperature on the spatial and temporal structuring of spongillafly microdistribution within a quarry environment

    Osteonecrosis in patients with acute lymphoblastic leukaemia: a national questionnaire study

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    Objectives: To establish prevalence, management and long-term outcomes of osteonecrosis (ON) in young people diagnosed with acute lymphoblastic leukaemia (ALL) between 2003 and 2011. Design, setting, participants: This study assessed ON in 3113 patients aged 1–24 years who participated in the UK national leukaemia study UKALL 2003. UKALL 2003 recruited patients in 40 UK hospitals between 2003 and 2011 and included patients between ages 1 and 25 diagnosed with ALL. Results: 170 patients were diagnosed with ON, giving a prevalence of 5.5%. The multivariable analysis showed that the risk of ON was highest for children aged between 10 and 20 years (ages 10–15 years, OR 23.7, 95% CI 14.8 to 38.0; ages 16–20 years, OR 22.5, 95% CI 12.7 to 39.8, compared with age <10 years). Among ethnic groups, Asian patients had the highest risk of ON (OR 1.92, 95% CI 1.1 to 3.6, compared with White patients). Eighty-five per cent of patients with ON had multifocal ON. Thirty-eight per cent of patients with ON required surgery and 19% of patients with ON required a hip replacement. Fifteen per cent of patients who had surgery still describe significant disability or use of a wheelchair. Conclusions: ON has considerable morbidity for patients being treated for ALL, with a high burden of surgery. Age and ethnicity were found to be the most significant risk factors for development of ON, with Asian patients and patients aged 10–20 years at diagnosis of ALL at greatest risk. These results will help risk stratify patients at diagnosis of ALL, and help tailor future prospective studies in this area

    A reaction–diffusion analysis of energetics in large muscle fibers secondarily evolved for aerobic locomotor function

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    The muscles that power swimming in the blue crab, Callinectes sapidus, grow hypertrophically, such that in juvenile crabs the cell diameters ar

    L-Arginine promotes gut hormone release and reduces food intake in rodents

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    Aims: To investigate the anorectic effect of L‐arginine (L‐Arg) in rodents. Methods: We investigated the effects of L‐Arg on food intake, and the role of the anorectic gut hormones glucagon‐like peptide‐1 (GLP‐1) and peptide YY (PYY), the G‐protein‐coupled receptor family C group 6 member A (GPRC6A) and the vagus nerve in mediating these effects in rodents. Results: Oral gavage of L‐Arg reduced food intake in rodents, and chronically reduced cumulative food intake in diet‐induced obese mice. Lack of the GPRC6A in mice and subdiaphragmatic vagal deafferentation in rats did not influence these anorectic effects. L‐Arg stimulated GLP‐1 and PYY release in vitro and in vivo. Pharmacological blockade of GLP‐1 and PYY receptors did not influence the anorectic effect of L‐Arg. L‐Arg‐mediated PYY release modulated net ion transport across the gut mucosa. Intracerebroventricular (i.c.v.) and intraperitoneal (i.p.) administration of L‐Arg suppressed food intake in rats. Conclusions: L‐Arg reduced food intake and stimulated gut hormone release in rodents. The anorectic effect of L‐Arg is unlikely to be mediated by GLP‐1 and PYY, does not require GPRC6A signalling and is not mediated via the vagus. I.c.v. and i.p. administration of L‐Arg suppressed food intake in rats, suggesting that L‐Arg may act on the brain to influence food intake. Further work is required to determine the mechanisms by which L‐Arg suppresses food intake and its utility in the treatment of obesity
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