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排序方式: 共有195条查询结果,搜索用时 15 毫秒
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Comparative Journal Ratings: A Survey Report 总被引:3,自引:3,他引:0
The expert survey and bibliometric methods of assessing the quality of work in political science are complementary. This project builds on previous surveys of academic political science journals conducted among US political scientists. The current wave extends the survey to political scientists in Canada and the UK. Preliminary results suggest both similarities and differences across the three countries. These results matter for policy debate in any country that is considering channelling flows of funds to universities in proportion to the quality of their research, and in helping to supply objective evidence about the research quality of work submitted by candidates for academic appointments and promotions. 相似文献
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Rachel F. Rodgers Susan J. Paxton Siân A. McLean 《Journal of youth and adolescence》2014,43(5):814-823
Body image and eating concerns are prevalent among early adolescent girls, and associated with biological, psychological and sociocultural risk factors. To date, explorations of biopsychosocial models of body image concerns and disordered eating in early adolescent girls are lacking. A sample of 488 early adolescent girls, mean age = 12.35 years (SD = 0.53), completed a questionnaire assessing depressive symptoms, self-esteem, body mass index (BMI), sociocultural appearance pressures, thin-ideal internalization, appearance comparison, body image concerns and disordered eating. Structural equation modelling was conducted to test a hypothetical model in which internalization and comparison were mediators of the effect of both negative affect and sociocultural influences on body image concerns and disordered eating. In addition, the model proposed that BMI would impact body image concerns. Although the initial model was a poor fit to the data, the fit was improved after the addition of a direct pathway between negative affect and bulimic symptoms. The final model explained a large to moderate proportion of the variance in body image and eating concerns. This study supports the role of negative affect in biopsychosocial models of the development of body image concerns and disordered eating in early adolescent girls. Interventions including strategies to address negative affect as well as sociocultural appearance pressures may help decrease the risk for body image concerns and disordered eating among this age group. 相似文献
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Lonna Rae Atkeson Lisa Ann Bryant Thad E. Hall Kyle Saunders Michael Alvarez 《Electoral Studies》2010
In democratic societies there is a tension between maximizing ballot access and minimizing voter fraud. Since the 2000 presidential election, this tension has been central to discussions about election reform at the national, state, and local level. We examine this tension by focusing on the implementation of voter identification laws in one state that has experienced significant issues in recent elections, and that is currently implementing election reform: New Mexico. We hypothesize that Hispanic voters are more likely to show some form of identification than other types of voters. Using a voter data set from New Mexico's First Congressional District in the 2006 election, we find that Hispanic, male and Election Day voters are more likely to show some form of identification than non-Hispanic, female and early voters. In addition, using an overlapping study of Bernalillo County 2006 poll workers, which almost entirely overlaps with the First Congressional District, we find no evidence that differences in poll worker partisanship or ethnicity produce differences in voter identification procedures. Our findings suggest that broad voter identification laws, which may be applied unequally, may be perceived as discriminatory. 相似文献
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Kyle Conway M.D. J.D. Omar Rayes M.D. Theodore Brown M.D. Milad Webb M.D. Ph.D. 《Journal of forensic sciences》2020,65(3):855-859
Residential fires are a significant cause for morbidity and mortality in the United States. Death is often the result of soot and smoke inhalation causing carbon monoxide (CO) toxicity. The approximate lethal level of carboxyhemoglobin (COHb) in healthy adults has been well described. However, a significant number of medical examiner cases involve infirmed decedents, often elderly, with complex cardiovascular disease burdens. It is well known that death in these cases will occur at sublethal levels of COHb; however, increased lethality has been largely documented via anecdotal experience and lacks quantification. Fifty-five cases were identified where death resulted from smoke and soot inhalation suffered in a residential fire. The control group, with no cardiovascular disease, had an age-adjusted mean COHb level of 61.6% at the time of death. Presence of hypertensive cardiovascular disease showed a 30% reduction in COHb (age-adjusted mean 43.2%), atherosclerotic disease showed a 33% reduction (age-adjusted mean 41.5%), and combined disease presentation accounted for 41% reduction (age-adjusted mean 36.3%). When controlling for age, atherosclerotic and hypertensive cardiovascular diseases were each associated with statistically significant decreases in COHb (p < 0.01). Increasing age was associated with decreased COHb levels at 2.8% per 10 years of life (p < 0.01), even when modeled with hypertensive and atherosclerotic disease. These findings carry important public health significance, as well as practical significance for the medical examiner when interpreting COHb levels in cases of suspected deaths due to smoke and soot inhalation. 相似文献
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Practitioners and scholars are concerned that citizen surveys about community services are heavily influenced by respondents' opinions on other issues and by their sociodemographic backgrounds. We search for these biases by examining the extent to which citizen assessments of streets and parks in Iowa communities match the assessments of a nonresident. The citizens' ratings correlate significantly with the nonresident's ratings, indicating that citizen evaluations are not entirely the product of other influences. However, further analysis reveals some bias. In particular, streets are rated higher in wealthy towns, towns high in political efficacy, and towns where residents rate government services good overall. Parks are rated higher in towns where people come together to solve problems and in towns where people rate government services good overall. Even with these biases, our research indicates that citizen evaluations convey reasonably accurate information about the condition of community streets and parks. 相似文献
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