首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   243篇
  免费   19篇
各国政治   10篇
工人农民   42篇
世界政治   13篇
外交国际关系   12篇
法律   158篇
中国政治   2篇
政治理论   24篇
综合类   1篇
  2024年   8篇
  2023年   48篇
  2022年   1篇
  2021年   15篇
  2020年   14篇
  2019年   11篇
  2018年   14篇
  2017年   12篇
  2016年   17篇
  2015年   10篇
  2014年   11篇
  2013年   29篇
  2012年   11篇
  2011年   9篇
  2010年   5篇
  2009年   4篇
  2008年   10篇
  2007年   6篇
  2006年   5篇
  2005年   3篇
  2004年   5篇
  2003年   3篇
  2002年   2篇
  1998年   1篇
  1997年   2篇
  1996年   2篇
  1995年   2篇
  1987年   2篇
排序方式: 共有262条查询结果,搜索用时 15 毫秒
21.
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   
22.
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   
23.
24.
25.
We sought to determine whether intimate partner violence (IPV) risk factors differed depending upon the presence of children in the home, and to estimate the annual prevalence of IPV first in the general population and then in homes with and without children. We analyzed data from a cross-sectional random sample of 6,836 women in southeastern Pennsylvania interviewed by telephone in 2004. The magnitude of association between IPV and risk factors varied between homes with and without children for women’s alcohol problems (with children, odds ratio (OR) 7.7; 95% confidence interval (CI) 2.9, 20.9; without children, OR 2.4; 95% CI 0.9, 6.0), and mental health problems (with children, OR 4.0; 95% CI 1.8, 8.9; without children, OR 3.0; 95% CI 1.6, 5.7). Poverty was significantly associated with IPV only in homes without children (OR 3.6; 95% CI 1.9, 7.2). Annual IPV prevalence was 1.2% overall, 1.4% in homes with children, and 1.1% in homes without children. One in 63 children lived in a home with IPV. Differences in IPV risk factors in homes with and without children suggest distinct underlying IPV mechanisms or consequences in these contexts.  相似文献   
26.
Critical Criminology - This article explores the over-representation of Indigenous people in suicide statistics internationally as indicative of the broader impacts of colonialism. The purpose of...  相似文献   
27.
Journal of Experimental Criminology - Despite experiments being termed the “gold standard,” criminology has been slow to adopt experimentation as a methodology. The goal of this...  相似文献   
28.
Extant work on status attribution has largely focused on major powers or state capabilities as key explanatory factors driving these social processes and suggests that status considerations increase conflicts between states. We argue for a more comprehensive approach to status attribution that considers international norms as another major factor that is weighed in the attribution process. We contend that states (policymakers) evaluate one another not only on the basis of economic and military capabilities but also on the extent to which there is behavioral conformance with normative expectations and reward one another dependent upon whether these expectations are met. However, this attribution of status is dependent upon the level of contestation pertaining to that norm. Using a data set that assesses consistency with six different norms (resource transference, multilateralism, economic liberalism, democratic governance, respect for human rights, and peaceful dispute resolution), we find that status attribution is associated with norm-consistent behavior but only when these norms are uncontested at the global level.  相似文献   
29.
While the impact of the defendant's sex and race on processing decisions is well researched, less is known about the impact of the victim's sex and race on juvenile court decision making. Using data from the juvenile court in St. Louis, Missouri, this study explores direct and interactive effects of the victim's sex and race on outcome decisions for juvenile offenders. Findings suggest that legal differences account for most of the observed differences in detention, commitment and adjudication among the sample studied.  相似文献   
30.
This article reviews a program designed in response to high-conflict parents who have protracted family law cases and have been referred to dependency court due to child abuse allegations.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号