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   6463篇
  免费   98篇
  6561篇
  2024年   25篇
  2023年   45篇
  2022年   33篇
  2021年   52篇
  2020年   128篇
  2019年   131篇
  2018年   167篇
  2017年   164篇
  2016年   225篇
  2015年   157篇
  2014年   145篇
  2013年   706篇
  2012年   280篇
  2011年   344篇
  2010年   207篇
  2009年   243篇
  2008年   268篇
  2007年   311篇
  2006年   245篇
  2005年   242篇
  2004年   247篇
  2003年   245篇
  2002年   216篇
  2001年   122篇
  2000年   107篇
  1999年   114篇
  1998年   115篇
  1997年   85篇
  1996年   83篇
  1995年   77篇
  1994年   89篇
  1993年   61篇
  1992年   87篇
  1991年   47篇
  1990年   56篇
  1989年   36篇
  1988年   29篇
  1987年   42篇
  1986年   40篇
  1985年   49篇
  1984年   38篇
  1983年   55篇
  1982年   42篇
  1981年   41篇
  1980年   35篇
  1979年   47篇
  1978年   49篇
  1977年   27篇
  1976年   30篇
  1973年   18篇
排序方式: 共有6561条查询结果,搜索用时 0 毫秒
961.
    
Data from a nationally representative sample of 5,238 U.S. adults were used to examine the extent to which physical assault victimization was associated with suicidal ideation or behavior (SIB). The results from multivariable logistic regression analyses indicate that physical assault victimization was positively associated with SIB after adjusting for sociodemographic characteristics and alcohol use (OR = 3.6; 95% CI = 2.4-5.5). Those who were injured during the most recent physical assault (OR = 2.7; 95% CI = 1.2-6.0) and those who were assaulted by a relative (OR = 3.4; 95% CI= 1.0-11.0) or intimate partner (OR = 7.7; 95% CI = 2.7-22.5) were significantly more like to report SIB than victims who were not injured or were assaulted by a stranger. Also, those who were victimized but not injured (OR = 5.6; 95% CI = 3.8-8.2) and those who were victimized by a stranger (OR = 2.9; 95% CI = 1.4-6.0) were more likely to report SIB than non-victims. These results highlight the need for legal, medical, mental health, and social service providers to address the co-occurrence of violent victimization and suicidal ideation, particularly, but not exclusively, victimization by family members and intimates.  相似文献   
962.
    
To dispel apparent confusion, White racial identity and White racial consciousness are described and contrasted in terms of theoretical conceptualization and measures used. It is recommended that priority be given to the validation of existing or new measurement instruments to provide a sound basis for future findings. Para disipar la confusión aparente, la identidad racial Bianca, y el conocimiento racial Blanco, se describen y son contrastados en términos de sus conceptos teóricos y las medidas empleadas. Se recomienda dar prioridad a la validación de instrumentos existentes o nuevos para proporcionar una base sólida para los deseubrimientos futuros.  相似文献   
963.
964.
    
  相似文献   
965.
    
This paper reviews the literature on performance on standard neuropsychological tests among individuals with posttraumatic stress disorder (PTSD). Of 19 studies, 16 reported impairment of attention or immediate memory (or both); however, most of these studies included PTSD patients with significant psychiatric comorbidity, so that the extent to which the observed deficits are specifically attributable to PTSD remains unclear. Other potential confounds, including medical illness, substance abuse, and motivational factors, further preclude definitive conclusions at present. Results of structural and functional neuroimaging studies of PTSD are also summarized. Two studies have reported correlations between hippocampal volume and cognitive findings in PTSD patients; functional studies have indicated specific findings in limbic regions, although the relationship of these results to neuropsychological performance remains to be explored.  相似文献   
966.
    
  相似文献   
967.
    
This study investigated the level of congruency between scores on the Self‐Directed Search–Form R (J. L. Holland, 1994) and scores from an online instrument, both of which measure Holland types (J. L. Holland, 1985, 1997). A reasonably high level of congruence was found. Implications for career counselors are briefly delineated.  相似文献   
968.
    
  相似文献   
969.
The purpose of this study was to identify potential opportunities for improving member participation in community-based coalitions. We hypothesized that opportunities for influence and process competence would each foster higher levels of individual member participation. We tested these hypotheses in a sample of 818 members within 79 youth-oriented coalitions. Opportunities for influence were measured as members' perceptions of an inclusive board leadership style and members' reported committee roles. Coalition process competence was measured through member perceptions of strategic board directedness and meeting effectiveness. Members reported three types of participation within meetings as well as how much time they devoted to coalition business beyond meetings. Generalized linear models accommodated clustering of individuals within coalitions. Opportunities for influence were associated with individuals' participation both within and beyond meetings. Coalition process competence was not associated with participation. These results suggest that leadership inclusivity rather than process competence may best facilitate member participation.  相似文献   
970.
    
Mark Day 《Philosophia》2008,36(4):417-427
The approach that philosophers have taken to history has too often been one-dimensional. It is my aim in this paper to map out a future multi-dimensional philosophy of history, by invoking the notion of a relation with the past, and by arguing for the philosophical relevance of multiple such relations.
Mark DayEmail:
  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