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   1147篇
  免费   47篇
各国政治   71篇
工人农民   190篇
世界政治   73篇
外交国际关系   60篇
法律   576篇
中国政治   16篇
政治理论   204篇
综合类   4篇
  2023年   5篇
  2021年   4篇
  2020年   13篇
  2019年   31篇
  2018年   43篇
  2017年   44篇
  2016年   35篇
  2015年   27篇
  2014年   30篇
  2013年   172篇
  2012年   27篇
  2011年   33篇
  2010年   23篇
  2009年   45篇
  2008年   51篇
  2007年   48篇
  2006年   47篇
  2005年   27篇
  2004年   40篇
  2003年   29篇
  2002年   35篇
  2001年   31篇
  2000年   24篇
  1999年   22篇
  1998年   16篇
  1997年   21篇
  1996年   23篇
  1995年   18篇
  1994年   7篇
  1993年   12篇
  1992年   18篇
  1991年   19篇
  1990年   11篇
  1989年   15篇
  1988年   10篇
  1987年   9篇
  1986年   10篇
  1985年   10篇
  1984年   13篇
  1983年   12篇
  1982年   14篇
  1981年   10篇
  1980年   15篇
  1979年   9篇
  1978年   10篇
  1977年   7篇
  1976年   5篇
  1975年   3篇
  1973年   3篇
  1969年   2篇
排序方式: 共有1194条查询结果,搜索用时 15 毫秒
161.
Survey reports of police stops and driving behavior are a potential methodology for examining the magnitude and prevalence of the “Driving While Black” phenomena. However, estimates of the magnitude or correlates of racial disparity in police stops from self-reported survey data are potentially compromised if the accuracy of self-reports of police stops and driving behavior differ by race. We report on the results of a reverse record check survey in which we directly assess the degree and consequences of differences by race in self-reports of police stops. In our sample of drivers who had been cited for speeding in the preceding year, we found that 77% of the White respondents and 71% of the African American respondents admitted to being stopped. While both groups underreport stops, African Americans do so at a higher rate. This finding is consistent with many past studies which report stronger social desirability effects on survey responses among African Americans. Thus, survey data will tend to underestimate the magnitude of the “Driving While Black” phenomena.
Donald Tomaskovic-DeveyEmail:
  相似文献   
162.
163.
This paper presents an uncomplicated and minimally invasive method for age-at-death determination in a contemporary Dutch (West European) population, by modifying the approach of assessment based on the age-related remodeling of bone tissue. In contrast to the usual "osteon count," a "non-remodeled tissue count" is undertaken. To optimize the method, proper zeroing of the polarization filter set of the microscope is essential. Instructions for setting the filters are given. A sample of femoral shaft segments totaling 162 individuals with ages ranging from 15 to 96 years is analyzed. Subperiosteal quantitative assessments are recorded at the most anterior point of the femoral shaft and also at points 25 degrees to the left and to the right of that point. Interobserver agreement in the assessments shows an acceptable degree of correlation. Bone remodeling with age does not progress in a linear, but in a curvilinear manner. Dependence of predicted age on nonremodeled surface counts in the analyzed areas of the anterior cortex of the femur appears to be significant. A set of regression equations is given. Sex can be ignored in age prediction. The small but statistically significant dependence of predicted age on cadaver length corresponds with the present strong secular increase in stature in the Netherlands. A concise catalogue with micrograph examples for every 10-year period in life is available upon request.  相似文献   
164.
165.
Data of eight Y-chromosomal STRs, the so called "minimal core set", were obtained from 152 unrelated males of the Primorye region of Russia. The allelic frequencies correspond to other European populations. The background is a settlement of males from the European part of Russia, Ukraine and other states which were included in the former western part of the Soviet Union. On the other hand the distribution of the most frequent haplotypes differs to the Ukraine and Russian population. The most frequent haplotype was obtained five times in the population corresponding to 3.3%. The haplotype data reported here have been included into the Y-STR database maintained at the Institute of Legal Medicine, Humboldt-University, Berlin.  相似文献   
166.
167.
168.
169.
Using four categories of accuracy (true positive, false positive, true negative, false negative), this study explored (1) how accurately intimate partner violence (IPV) victims are able to assess their risk of re-abuse; and (2) potential predictors of accuracy. Women seeking help for IPV (N = 246) rated the likelihood that they would experience physical re-abuse in the coming year and then reported 18 months later whether those risks had been realized. Victim assessments were more likely to be right than wrong, and were subject to neither a pessimistic nor optimistic bias. In the multivariate analysis, significant/marginally significant predictors of the accuracy categories were the history of violence from this and former partners, level of substance use, PTSD symptoms, and the recency of the violence. Among the more robust findings were the connection between level of stalking and true positives, and between substance use and false negatives. This study suggests that victim assessments have significant potential to inform practice, and deserve further exploration.
Lauren Bennett CattaneoEmail:
  相似文献   
170.
The goal of the Healthy Families America Research to Practice Network (RPN) was to foster communication among academic researchers, community-based evaluators, and practitioners to integrate science-based prevention practices into practice settings. The RPN goals were guided by and are a response to the limitations of past and current research paradigms in the social sciences. Accomplishments included creation of a 40-member researcher-practitioner council, development of a national Program Information Management System, and completion of a 4-year national Implementation Study, employing data from over 100 sites in nine states. The discussion examines what was learned about this rare experiment in creating practitioner-scientist partnerships and the impact of the RPN on child abuse and neglect prevention. A five-year plan to sustain and strengthen a practice-research collaborative is recommended.  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