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11.
Prior research has indicated that pubertal development and peer associations are important determinants of adolescent smoking behavior. However, more remains to be learned about why these variables matter or how they may be related to one another in ways that lead to the initiation of smoking. Using contractual data from the National Longitudinal Study of Adolescent Health, we consider the relationship between early pubertal development and associations with close friends who smoke, and smoking initiation among male youths. The results of the study reveal a link between advanced pubertal development and the initiation of smoking among boys, but we discover that the effect is indirect, mediated by a greater propensity of sexually mature males to forge friendships with peers who smoke. We also find that this propensity is greatest among the youngest adolescents in the sample, suggesting that the age of the respondent conditions the effects of pubertal development on the formation of friendships with peers who smoke.(Ph.D., The University of Texas at Austin), is an Assistant Professor at Washington State University at Vancouver. Her areas of interest include juvenile delinquency and substance abuse.(Ph.D., Rutgers: The State University of New Jersey) is an Assistant Professor at Westfield State College. Her area of interest is adolescent identity development.(Ph.D., The University of Texas at Austin) is an Associate Professor at the University of Portland. His areas of interest include biosocial models of adolescent problem behavior.  相似文献   
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Laurie Calhoun 《政治学》2002,22(2):95-108
Recent philosophical writing about war has focused upon just war theory, especially how best to construe the ius ad bellum and ius in bello tenets, and whether the distinction between combatants and non-combatants can be made in the modern world. Historically and politically, calls to war have often appealed to utilitarian considerations. In this article, I discuss important long-range consequences rarely mentioned in utilitarian defences of particular decisions to engage states in war. When consequences are weighed fully not only in the short term but with an eye to the future, bearing the destiny of all people in mind, it emerges that belligerent approaches to international conflict resolution will not maximise utility.  相似文献   
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建立生物试样中常见巴比妥类药物的固相提取和柱上衍生化GC/MS分析法。将预制的血或肝分别在pH6.0和pH2.2的条件下过预活化的GDX-403吸附小柱,再用缓冲浪和蒸馏水各4ml顺序洗柱。最后用4ml丙酮/氯仿(1:1)溶剂洗脱样品,离心弃除水相,80℃挥至近干,用50μl乙醇定溶、取净化的样品2~4μl挥至近干,加20μl0.2molTMAH衍生化试剂,直接进样0.5μl,柱上衍生化GC/MS(GC)分析。在试验条件下,当血和肝分别添加2.0μg和5.0μg混合药物,回收率≥80%,相对标准差(RSD)优于±10%,检测限优于5ng(信/噪比≥2)。该法能有效地排除类脂物和组胺的干扰,可用于治疗量级药物分析和婴幼儿中毒案检验。  相似文献   
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This study examined organizational factors influencing the availability and accessibility of IPV services for refugee and other vulnerable immigrant women in the U.S. from the perspectives of social service providers. This qualitative study used a purposive sampling approach to recruit 57 social service providers. Researchers analyzed data generated from individual interviews and focus group discussions using a thematic approach. The analysis generated four themes reflective of structural and systemic factors shaping the availability and accessibility of IPV services for immigrant and refugee women in the U.S.: (1) We weren’t ready, (2) No place to go, (3) Time is not on our side, and (4) Can’t do it alone. The analysis illuminated the extent to which service demands outweighed organizational capacities and the rigidity of service timelines that failed to meet needs. A pervasive thread of ethical dilemmas emerged, affecting the availability and accessibility of services. Overall, the findings form a compelling argument for structural shifts in policy and funding, and for fostering strong inter-sectoral coordination to combat barriers to services. The study reiterates the importance of addressing inter-agency collaboration in IPV research, policy, and practice.

  相似文献   
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Matching dental antemortem (AM) and postmortem (PM) data for human identification is especially challenging when the workforce is limited. Dental hygienists have served mass fatality incidents (MFIs) due to dental-related expertise. However, forensics within dental hygiene education and research on transferable skills is limited. This qualitative balance design study assessed senior dental hygiene students' match accuracy of simulated cases varying in dental identifiers based on AM full mouth series (FMS) radiographs and oral photographs to PM WinID3® odontograms to demonstrate possible disaster victim identification (DVI) transferable skills gained during formal education. A convenience sample of senior dental hygiene students (n = 31) was presented information on WinID3® interpretation, then presented with 5 mismatched cases and asked to visually interpret each to make 10 total matches; five based on AM FMS with simulated PM WinID3® odontograms and five based on AM photographs with PM WinID3® odontograms. Match accuracy scores ranged from 41.9% to 58.1% for cases with 1–10 identifiers, and 77.4% to 93.5% for cases with 11–40 identifiers. Accuracy when matching AM radiographs to PM odontograms versus AM photographs to PM odontograms was compared and revealed no statistical differences in match accuracy depending on image type (p = 0.388 to 1.000). Results of this pilot study suggests transferable match accuracy skills resulted from the participants' dental hygiene formal education. These baseline skills with additional specialized training support the rationale for dental hygienists serving on DVI teams. More research is needed in education and practice when preparing dental hygienists for forensic-based service.  相似文献   
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Behaviors developed in adolescence influence health later in life. The purpose of this study was to investigate the frequency of health care provider's discussion of health behaviors with overweight and non-overweight adolescents and identify demographic and health behaviors related to exercise, hours of television viewing, and weight issues associated with these discussions. A Cross sectional survey of urban adolescents was conducted. Trained interviewers administered surveys over a three month period in 2001 at an urban academic pediatric and adolescent clinic. The 252 adolescents surveyed had a mean age of 15 with 49% categorized as being at risk for overweight/overweight and 51% as normal weight using the CDC percentiles for BMI. While 16% of the adolescents reported that their physician or nurse discussed the amount of television they watched, rates of discussion related to exercise (58%), and weight (54%) were much higher. In multivariate analyses, health care provider discussions with adolescents regarding exercise were more common for overweight (O.R.=2.42, 95% C.I. [1.28–4.57]) and at risk for overweight (O.R.=1.98, 95% C.I. [1.03–3.81]) adolescents, whereas physician discussion of television viewing was not associated with weight. Discussions of weight were more common for female (O.R.=2.18, 95% C.I. [1.21–3.95]), African-American (O.R.=2.53, 95% C.I. [1.40–4.57]), and overweight (O.R.=3.92, 95% C.I. [1.97–7.81]) adolescents. Even after adjusting for weight, race and gender strongly influenced the frequency of discussions about weight in physician offices. Although health care providers frequently address weight and exercise with adolescents, more discussions related to sedentary behaviors such as television viewing may be warranted to address adolescent obesity.Received PhD in Epidemiology from University of California, San Diego. Research interests include smoking prevention and cessation among adolescents and health promotion interventions.Received MD from University of Missouri-Kansas City and MPH from Johns Hopkins University. Research interests include health services research and research in support of measurable, systematic improvements in the quality of medical care.Received medical degree from Christian Medical College, Punjab, India and Master of Public Health from University of Kansas School of Medicine. Research interests include diet and physical activity behaviors, role of the environment in obesity and obesity prevention, especially among children and adolescents.Received MBBS from Allama Iqbal Medical College, Punjab University, Lahore, Pakistan and MPH from University of Kansas Medical Center. Research interests include smoking cessation, database design, implementation, data management and analysis, and use of information technology in health care settings.Director, Cancer Prevention, Control, and Population Sciences, Kansas Cancer Institute. Received MD/MPH from Tulane University and MS from Harvard School of Public Health. Research interests include disparities in healthcare; smoking cessation among underserved populations, specifically African Americans; diet, nutrition, obesity, and physical activity.  相似文献   
19.
This article seeks to place the UK's present economic ‘moment’ in historical context. Over the course of the decade since the 2007 financial crisis, it has increasingly been acknowledged that a cyclical crisis has become a structural crisis. The failure of most economists to predict the financial crash in the first place, and the inadequacy of economic policy in responding to its lasting effects, has led many to conclude that economics itself is in crisis. This article seeks to contribute to a better understanding of the present period of disjuncture. Drawing on theories of paradigm shift from both the physical and social sciences, we argue that the speed of change in UK economic policy is comparable to the two major historical transitions that ended with the post‐war consensus and neoliberalism. We conclude by offering some remarks on how and where the present change might take us.  相似文献   
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The past decade has seen the emergence of ‘new critical discourses’ on security that argue for a widening of the term. This article hopes to add to such discussions by specifically examining the position of children and of the ngos that champion their rights in relation to the evolving security discourse in Southern societies. With this in mind, the first section of the article outlines the role of ngos in the contemporary practice of security. This will serve as an introduction to section two, where the activity of ngos vis-à-vis children will be considered. Such activity raises a number of questions with regard to the usefulness of incorporating children into the security discourse specifically, and to the social construction of ‘children’ generally. These will be outlined in section three. Section four argues for children to be considered as inherent to the creation of Southern security norms, while the final section concludes.  相似文献   
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