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   6546篇
  免费   211篇
  国内免费   4篇
  2020年   58篇
  2019年   75篇
  2018年   142篇
  2017年   111篇
  2016年   116篇
  2015年   82篇
  2014年   103篇
  2013年   531篇
  2012年   225篇
  2011年   219篇
  2010年   111篇
  2009年   126篇
  2008年   167篇
  2007年   178篇
  2006年   147篇
  2005年   154篇
  2004年   142篇
  2003年   118篇
  2002年   132篇
  2001年   218篇
  2000年   207篇
  1999年   148篇
  1998年   65篇
  1996年   62篇
  1992年   120篇
  1991年   122篇
  1990年   121篇
  1989年   99篇
  1988年   91篇
  1987年   99篇
  1986年   110篇
  1985年   107篇
  1984年   95篇
  1983年   83篇
  1981年   54篇
  1979年   96篇
  1978年   71篇
  1977年   62篇
  1976年   54篇
  1975年   67篇
  1974年   93篇
  1973年   101篇
  1972年   72篇
  1971年   69篇
  1970年   80篇
  1969年   75篇
  1968年   106篇
  1967年   82篇
  1966年   93篇
  1958年   62篇
排序方式: 共有6761条查询结果,搜索用时 15 毫秒
991.
It was hypothesized that accounts of occasions of eating followed by adverse symptoms (i.e. perceived food intolerance) would contain greater detail when based on recall of actual events, using episodic memory. Where accounts lacked detail it was hypothesized that recalled events were based on knowledge about food intolerance, without personal experience of a plausible incident. These hypotheses were tested by categorizing the contents of interviews of respondents to a randomized survey of the electorate in the Birmingham area, who attributed one or more adverse symptoms to one or more foods. The majority of interview records provided evidence for semantic memory rather than recall of actual episodes of food ingestion followed by symptoms(s). Vagueness of recollection correlated negatively with patho‐physiological plausibility of the perceived food intolerance. Greater detail and specificity in accounts of food‐symptom episodes was positively correlated with plausibility. Rareness of food‐symptom(s) contingencies also correlated with detail and specificity in accounts of episodes and with plausibility of food intolerance. Detail and specificity of accounts of the eating of foods followed by symptoms, when coupled with rareness of the contingency of that food being followed by those symptoms, may prove to be a better predictor of physically diagnosed food intolerance than plausibility by patho‐physiological criteria alone. Copyright © 1999 John Wiley & Sons, Ltd.  相似文献   
992.
993.
We explored differences in distress scores at intake as well as the change in anxiety and depression scores over the course of 12 therapy sessions for Native Hawaiian and Pacific Islander (NHPI) college students. Data were collected from the Center for Collegiate Mental Health (= 256,242). Results support the notion that NHPI college students experience anxiety and depression in therapy differently from other ethnic groups with moderate-to-large magnitudes of effect.  相似文献   
994.
995.
996.
Many studies have documented an association between parental attachment and college student adjustment. Few studies have explored the mechanisms underlying this association. The authors asked college students nearing the end of their first academic year to complete instruments measuring parental attachment, coping, and adjustment to college. Structural equation modeling was used to model mediation separately for attachment to mother and father. Avoidant coping mechanisms (operationalized as denial, mental disengagement, behavioral disengagement, and substance use) significantly mediated the parental attachment and adjustment to college relationship. Self-sufficient coping mechanisms (operationalized as planning, positive reinterpretation, acceptance, active coping, and suppression) did not mediate the parental attachment and adjustment to college relationship.  相似文献   
997.
998.
Drawing on Dewey's pragmatic perspective on talent cultivation and previous research on promoting employee creativity in industry, this study investigates student creativity performance in relation to teacher's encouragement, intrinsic motivation, and creative process engagement. Based on survey data collected from 140 vocational high school students who participated in a nation‐wide contest in Taiwan, path analyses were performed using structure equation modeling techniques. The results indicate that both teacher's encouragement and intrinsic motivation have a significant, although indirect, effect on student creativity, and that creative process engagement, as opposed to teacher encouragement or intrinsic motivation, has a direct and significant mediating effect on student creativity. This finding is in partial agreement with prior research which reports student creativity is positively associated with teacher encouragement and intrinsic motivation, highlighting the mediating role of creative process engagement in facilitating student creative performance.  相似文献   
999.
When witnessing an uncivil, immoral, or discriminatory behavior, bystanders have the opportunity to “speak up” and confront the perpetrator about his/her act. We examined whether the closeness of the relationship between the bystander and the perpetrator affects the bystander's reaction. We asked middle schoolers, high schoolers, and university students (N = 1,386) to indicate how they would react if they were to witness each of 26 uncivil, immoral, or discriminatory behaviors. We experimentally manipulated the relationship to the perpetrator, who was described as a friend, an acquaintance, or a stranger. Results showed that the closer the relationship to the perpetrator the greater the bystander's self-reported likelihood of “speaking up.” The findings speak to the role of close relationships in the perpetuation of social norms. They also suggest ways to curb anti-social behaviors in a variety of school and organizational settings.  相似文献   
1000.
The purpose of this study was to test the relationship between self-efficacy, readiness to change, and Alcohol Use Disorders Identification Test (AUDIT) risk levels in a sample of active duty drinkers who were seeking care in a military emergency department. Civilian health educators screened participants for alcohol use with the AUDIT and collected sociodemographic, service, and drinking-related cognitions data from active duty patients admitted to an emergency department. A total of 787 active duty military personnel participated in the study. Almost half (48%) drank at least once a week and 32% reported consuming five or more alcoholic drinks during a typical drinking episode. One in five participants reported heavy episodic drinking weekly to almost daily. Results of a multinomial logistic regression model showed that active duty service members with a self-reported diagnosis of posttraumatic stress disorder since joining the military were more likely to be an at-risk or high/severe risk drinker relative to a low risk drinker. Higher controlled drinking self-efficacy was associated with a decrease in the odds of being either an at-risk or high/severe risk drinker. Increased readiness to reduce drinking was associated with an increase in the odds of being either an at risk or high/severe risk drinker. The results of this research suggest self-efficacy to control one’s heavy drinking as well as readiness to change may be important factors to consider when designing alcohol education programs within the military.  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