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   487篇
  免费   13篇
各国政治   23篇
工人农民   52篇
世界政治   51篇
外交国际关系   28篇
法律   211篇
中国政治   3篇
政治理论   126篇
综合类   6篇
  2021年   3篇
  2020年   7篇
  2019年   10篇
  2018年   9篇
  2017年   13篇
  2016年   9篇
  2015年   8篇
  2014年   11篇
  2013年   61篇
  2012年   14篇
  2011年   11篇
  2010年   10篇
  2009年   6篇
  2008年   11篇
  2007年   26篇
  2006年   13篇
  2005年   11篇
  2004年   9篇
  2003年   9篇
  2002年   9篇
  2001年   15篇
  2000年   22篇
  1999年   16篇
  1998年   11篇
  1997年   17篇
  1996年   10篇
  1995年   4篇
  1994年   9篇
  1993年   12篇
  1992年   7篇
  1991年   12篇
  1990年   10篇
  1989年   7篇
  1988年   10篇
  1987年   6篇
  1986年   6篇
  1985年   8篇
  1984年   5篇
  1983年   5篇
  1981年   4篇
  1980年   7篇
  1979年   7篇
  1978年   7篇
  1977年   4篇
  1976年   3篇
  1974年   4篇
  1973年   2篇
  1972年   2篇
  1971年   2篇
  1970年   3篇
排序方式: 共有500条查询结果,搜索用时 15 毫秒
471.
472.
When in forensic casework or empirical research in‐person assessment of human decomposition is not possible, the sensible substitution is color photographic images. To date, no research has confirmed the utility of color photographic images as a proxy for in situ observation of the level of decomposition. Sixteen observers scored photographs of 13 human cadavers in varying decomposition stages (PMI 2–186 days) using the Total Body Score system (total n = 929 observations). The on‐site TBS was compared with recorded observations from digital color images using a paired samples t‐test. The average difference between on‐site and photographic observations was ?0.20 (t = ?1.679, df = 928, p = 0.094). Individually, only two observers, both students with <1 year of experience, demonstrated TBS statistically significantly different than the on‐site value, suggesting that with experience, observations of human decomposition based on digital images can be substituted for assessments based on observation of the corpse in situ , when necessary.  相似文献   
473.
Due to the increasing interest in adopting anti-SLAPP legislation outside of the USA (where it was first implemented), the definition of what constitutes a SLAPP is being questioned. Some commentators have advanced the suggestion that, in order to account for jurisdictional differences, outside of the USA it is the motivation to intimidate or chill public speech that is the aspect of a SLAPP on which anti-SLAPP legislation must focus. However, defining SLAPPs by the initiator's alleged intent to intimidate can render anti-SLAPP legislation, in any jurisdiction, ineffective. SLAPPs should be defined by the involvement of public participation, rather than by the intent of the SLAPP plaintiff. Effective anti-SLAPP legislation employs procedural protections that are engaged once a threshold demonstration has been made that the case involves protected public interest communications. Generally, this approach is appropriate to adopt in any jurisdiction where the legislature desires to protect public interest communications.  相似文献   
474.
Bullying prevention programs in the United States are being implemented in schools from kindergarten through high school to reduce rates of bullying behaviors. The bully prevention in positive behavior support (PBIS) model is an evidence-based, whole school intervention program. The PBIS model trains teachers, school staff, and administrators to model and provide positive reinforcement for children to decrease bullying amongst peers. This article addresses gaps in the current bullying prevention research by exploring challenges and potential modifications to the PBIS model based on staff perspectives of specific student needs. Utilizing focus group methodology, administrators, teachers, and support staff in a northeastern urban elementary school identified challenges experienced by students who were English language learners, impulsive, shy or sensitive, and female. The findings highlight the critical nature of school–parent relationships in addressing student, family, and cultural factors that influence the successful implementation of bullying prevention programs.  相似文献   
475.
This study provides regression equations for estimation of age of infants from the dimensions of their developing deciduous teeth. The sample comprises 97 individuals of known sex and age (62 boys, 35 girls), aged between 2 days and 1,081 days. The age‐estimation equations were obtained for the sexes combined, as well as for each sex separately, thus including “sex” as an independent variable. The values of the correlations and determination coefficients obtained for each regression equation indicate good fits for most of the equations obtained. The “sex” factor was statistically significant when included as an independent variable in seven of the regression equations. However, the “sex” factor provided an advantage for age estimation in only three of the equations, compared to those that did not include “sex” as a factor. These data suggest that the ages of infants can be accurately estimated from measurements of their developing deciduous teeth.  相似文献   
476.
477.
M.A., University of Tartu 1979; Ph.D., All-Union Institute of Criminology (Moscow) 1986; LL.M., Columbia University 1993.  相似文献   
478.
Gerontologists have rarely considered the concept of social justice in their research. Instead, related but more specific questions about the social situation of the aged have been posed. This paper provides an overview of existing social psychological literature on justice and intergenerational relations as a context for the five other papers contained in this issue. The importance of intergenerational justice within the family, particularly when there is a caretaking relationship, is stressed. As well, the policy implications of a concern with intergenerational justice are considered. The Paper concludes with a recommendation that gerontology and social justice research be integrated more frequently in order to enrich both fields of study.  相似文献   
479.
480.
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