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   2778篇
  免费   199篇
  国内免费   1篇
  2978篇
  2024年   4篇
  2023年   36篇
  2022年   31篇
  2021年   50篇
  2020年   95篇
  2019年   101篇
  2018年   130篇
  2017年   126篇
  2016年   153篇
  2015年   101篇
  2014年   110篇
  2013年   349篇
  2012年   175篇
  2011年   191篇
  2010年   98篇
  2009年   111篇
  2008年   125篇
  2007年   121篇
  2006年   96篇
  2005年   100篇
  2004年   89篇
  2003年   86篇
  2002年   62篇
  2001年   30篇
  2000年   29篇
  1999年   33篇
  1998年   29篇
  1997年   26篇
  1996年   29篇
  1995年   14篇
  1994年   15篇
  1993年   15篇
  1992年   19篇
  1990年   14篇
  1989年   11篇
  1988年   10篇
  1987年   10篇
  1986年   9篇
  1985年   12篇
  1984年   16篇
  1983年   13篇
  1982年   10篇
  1981年   14篇
  1980年   8篇
  1979年   9篇
  1978年   7篇
  1977年   7篇
  1976年   10篇
  1974年   6篇
  1973年   7篇
排序方式: 共有2978条查询结果,搜索用时 15 毫秒
231.
232.
We tested a role-conflict, depletion, and enrichment model, in which work-based benefits (enabling resources, psychological rewards, and psychological involvement) and work-based demands (time-, strain-, and behaviour-based demands, and hours worked) were antecedents to work–university conflict and work–university facilitation, which, in turn, were antecedent to students' academic engagement (dedication and vigour) and well-being (general and context-specific feelings about university). We also tested whether conflict and facilitation acted as mediators in the relationships between benefits and demands and the outcomes of engagement and well-being. The hypotheses were tested using 185 university students (77% female; mean age = 22.7 years) who were working while studying. Work-based benefits (enabling resources, rewards, and involvement) were associated with higher work–university facilitation; more time demands and fewer psychological rewards were associated with more work–university conflict; facilitation was associated with more engagement (dedication) and general well-being; and conflict was associated with more negative feelings towards the university. There were no mediation effects. Working while studying is related to students' engagement and well-being, although modest effects were explained by role-conflict theory.  相似文献   
233.
Research has shown that attentional pre-cues can subsequently influence the transfer of information into visual short term memory (VSTM) (Schmidt, B., Vogel, E., Woodman, G., & Luck, S. (2002). Voluntary and automatic attentional control of visual working memory. Perception & Psychophysics, 64(5), 754–763). However, studies also suggest that those effects are constrained by the hemifield alignment of the pre-cues (Holt, J. L., & Delvenne, J.-F. (2014). A bilateral advantage in controlling access to visual short-term memory. Experimental Psychology, 61(2), 127–133), revealing better recall when distributed across hemifields relative to within a single hemifield (otherwise known as a bilateral field advantage). By manipulating the duration of the retention interval in a colour change detection task (1 s, 3 s), we investigated whether selective pre-cues can also influence how information is later maintained in VSTM. The results revealed that the pre-cues influenced the maintenance of the colours in VSTM, promoting consistent performance across retention intervals (Experiments 1 & 4). However, those effects were only shown when the pre-cues were directed to stimuli displayed across hemifields relative to stimuli within a single hemifield. Importantly, the results were not replicated when participants were required to memorise colours (Experiment 2) or locations (Experiment 3) in the absence of spatial pre-cues. Those findings strongly suggest that attentional pre-cues have a strong influence on both the transfer of information in VSTM and its subsequent maintenance, allowing bilateral items to better survive decay.  相似文献   
234.
235.
236.
237.
Understanding suicide ideation (SI) in adolescents, especially during the high‐risk time following hospitalization for a suicidal event, is a crucial component of improving risk assessment. Most studies rely on single assessments of SI, despite the potential for SI to vary considerably over time. This study examined how indices of SI intensity (mean values) and lability (mean squared successive difference values) over a 6‐month period predict suicide attempts (SAs) and self‐harm, as well as how they relate to psychosocial risk factors and affective functioning, in a sample of 103 adolescents hospitalized for a SA or significant SI. Across the sample, SI intensity, but not lability, was associated with SAs and nonsuicidal self‐injury at 6‐month follow‐up. SI intensity performed similarly to single time point SI assessments, and its relations were not moderated by SI lability. SI intensity was also associated with borderline personality disorder criteria and a history of sexual abuse. In contrast, SI lability was associated with greater negative affect intensity and lability. These findings suggest that intensity of SI may confer more risk posthospitalization, and provide support for using these statistical methods to capture two distinct parameters of SI.  相似文献   
238.
In this study, we introduce the construct of the suicidal narrative, a hypothetical personal narrative linked to imminent suicide, and explore its relationship to near‐term suicidal risk and the suicide crisis syndrome (SCS). Psychiatric outpatients (N = 289) were administered the Columbia Suicide‐Severity Rating Scale (C‐SSRS), Suicide Crisis Inventory (SCI), and Suicide Narrative Inventory (SNI), a novel instrument combining the documented risk factors of Thwarted Belongingness, Perceived Burdensomeness, Humiliation, Social Defeat, Goal Disengagement, and Goal Reengagement. Dimensional measures of past month, lifetime, and past suicidal phenomena, incorporating ideation and behavior, were calculated from the C‐SSRS. Structural equation modeling was used to explore the interaction among variables. Factor analysis of the SNI yielded two orthogonal factors, termed Interpersonal and Goal Orientation. The former factor was comprised of Perceived Burdensomeness, Social Defeat, Humiliation, and Thwarted Belongingness, the latter of Goal Disengagement and Goal Reengagement. The Interpersonal factor correlated with both SCS severity and suicidal phenomena in each time frame and the Goal Orientation factor with no other variable. As hypothesized, the proposed model was significant for the past month only. Our findings support the construct of the suicidal narrative and its function as a near‐term suicidal risk factor.  相似文献   
239.
240.
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