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   5136篇
  免费   1657篇
  国内免费   164篇
  6957篇
  2024年   8篇
  2023年   58篇
  2022年   30篇
  2021年   107篇
  2020年   207篇
  2019年   408篇
  2018年   304篇
  2017年   479篇
  2016年   455篇
  2015年   415篇
  2014年   395篇
  2013年   846篇
  2012年   354篇
  2011年   274篇
  2010年   333篇
  2009年   327篇
  2008年   272篇
  2007年   207篇
  2006年   193篇
  2005年   180篇
  2004年   138篇
  2003年   124篇
  2002年   124篇
  2001年   102篇
  2000年   90篇
  1999年   57篇
  1998年   20篇
  1997年   20篇
  1996年   44篇
  1995年   32篇
  1994年   25篇
  1993年   32篇
  1992年   38篇
  1991年   40篇
  1990年   34篇
  1989年   23篇
  1988年   17篇
  1987年   15篇
  1986年   18篇
  1985年   6篇
  1984年   5篇
  1983年   4篇
  1982年   8篇
  1981年   7篇
  1980年   13篇
  1979年   13篇
  1978年   19篇
  1977年   20篇
  1973年   4篇
  1968年   3篇
排序方式: 共有6957条查询结果,搜索用时 15 毫秒
991.
The growing mental health needs of students within schools have resulted in teachers increasing their involvement in the delivery of school-based, psychosocial interventions. Current research reports mixed findings concerning the effectiveness of psychosocial interventions delivered by teachers for mental health outcomes. This article presents a systematic review and meta-analysis that examined the effectiveness of school-based psychosocial interventions delivered by teachers on internalizing and externalizing outcomes and the moderating factors that influence treatment effects on these outcomes. Nine electronic databases, major journals, and gray literature (e.g., websites, conference abstract) were searched and field experts were contacted to locate additional studies. Twenty-four studies that met the study inclusion criteria were coded into internalizing or externalizing outcomes and further analyzed using robust variance estimation in meta-regression. Both publication and risk of bias of studies were further assessed. The results showed statistically significant reductions in students’ internalizing outcomes (d = .133, 95% CI [.002, .263]) and no statistical significant effect for externalizing outcomes (d = .15, 95% CI [?.037, .066]). Moderator analysis with meta-regression revealed that gender (%male, b = ?.017, p < .05), race (% Caucasian, b = .002, p < .05), and the tier of intervention (b = .299, p = .06) affected intervention effectiveness. This study builds on existing literature that shows that teacher-delivered Tier 1 interventions are effective interventions but also adds to this literature by showing that interventions are more effective with internalizing outcomes than on the externalizing outcomes. Moderator analysis also revealed treatments were more effective with female students for internalizing outcomes and more effective with Caucasian students for externalizing outcomes.  相似文献   
992.
Using existing longitudinal data from 570 infants in the Maternal Lifestyle Study, we explored the predictive value of maternal and infant affect and maternal vocalizations during 2 minutes of face‐to‐face interactions at 4 months on IQ scores at 4.5 and 7 years. After controlling for demographic factors, maternal depression, and prenatal drug exposure, maternal positive affect and maternal positive vocalizations emerged as predictors of both verbal and performance IQ at 4.5 and 7 years. Although infant positive affect during the interaction with the mother was not predictive of these outcome measures, infant positive affect towards an examiner predicted verbal but not performance IQ at 4.5 years. These results suggest that maternal positive affect may index emotional engagement in interaction that facilitates both verbal and nonverbal cognitive development, while infant social positive affect is specifically related to the acquisition of verbal reasoning abilities. These findings are significant because they are based on a discrete snapshot of observable behavior in infancy (just 2 minutes of interaction), because they extend the range of maternal behaviors and characteristics known to support positive developmental outcomes, and because they are derived from high‐risk infants where prevention efforts may be beneficial. Potential mechanisms for these associations are discussed, as are the clinical implications for identifying dyads most in need of targeted interventions.  相似文献   
993.
The current 8‐year panel study explored changes in marital satisfaction among 614 married middle‐aged persons with seventh‐grade children. It also examined how individual health (physical health and depressive moods) and role changes (parenting transitions and life stress) were related to trajectories of marital satisfaction and investigated the buffering effect of family cohesion on these associations. Growth curve analyses show an inverted‐U shape in marital satisfaction during middle age. This indicates that regardless of the gender or age of the respondents, marital satisfaction among middle‐aged adults increased when their children were in the 9th and 12th grade, and then declined when their children were in their sophomore year of college. Declining physical health and an increase in depressive moods were related to a drop in marital satisfaction. Stressful events in midlife had negative effects on marital satisfaction, and family cohesion served as a buffer to mitigate the adverse impact of life stress on marital satisfaction. Overall, these results highlight the role of adolescent children in understanding why marital satisfaction changes among middle‐aged parents and emphasize the importance of health and life stress in relation to midlife marital satisfaction. These findings are discussed with life course perspectives and Taiwanese cultural values in relation to familism and academic achievement among children.  相似文献   
994.
This research investigated the role of a commercial program, Michelle Bridges 12 Week Body Transformation (MB12WBT), that uses a variety of tools including social support to influence weight management behaviours such as exercising and eating healthfully. The need for research into weight management remains current given obesity rates have continued to increase in recent decades. Weight management is a complex behaviour that for many consumers involves barriers that influence their commitment to continue exercising and eating healthily. The Theory of Planned Behaviour is frequently used to explain, and to a lesser extent predict, behaviours such as physical activity and healthy eating; however, there is much debate as to whether a perceived behavioural control variable or self‐efficacy is the best predictor of behaviour. Structural equation modelling was used to analyse data from a sample of 724 respondents who answered a baseline and three month follow‐up survey. The analysis revealed self‐efficacy and perceived behavioural control were two distinct constructs. Self‐efficacy was a better predictor of behaviour than perceived behavioural control variables as suggested in the original Theory of Planned Behaviour. Furthermore, self‐efficacy had a significant impact on exercising and eating healthfully behaviour. The findings and implications for both behaviour change theory and practice are discussed.  相似文献   
995.
The objective of this study is to explore whether a “bad” service encounter triggers a consumer's impulse purchase in a luxury goods store in an Asian emerging market. A 2 (service encounter: favorable vs. snobbish) × 2 (shopping companion: alone vs. with a close friend) between‐group factorial design was employed with 160 female consumers in an Asian emerging market to examine the antecedents of both the urge to save social identity and the impulse purchase of luxury goods. The results show that consumers in an Asian emerging market can be triggered to make an impulse purchase of a luxury good, not because they received excellent service in the store but because they encountered snobbish service, especially when shopping with a close friend. Research implications and limitations are also discussed.  相似文献   
996.
997.
998.
999.
The goal of this study was to propose a new functional magnetic resonance imaging (fMRI) paradigm using a language‐free adaptation of a 2‐back working memory task to avoid cultural and educational bias. We additionally provide an index of the validity of the proposed paradigm and test whether the experimental task discriminates the behavioural performances of healthy participants from those of individuals with working memory deficits. Ten healthy participants and nine patients presenting working memory (WM) deficits due to acquired brain injury (ABI) performed the developed task. To inspect whether the paradigm activates brain areas typically involved in visual working memory (VWM), brain activation of the healthy participants was assessed with fMRIs. To examine the task's capacity to discriminate behavioural data, performances of the healthy participants in the task were compared with those of ABI patients. Data were analysed with GLM‐based random effects procedures and t‐tests. We found an increase of the BOLD signal in the specialized areas of VWM. Concerning behavioural performances, healthy participants showed the predicted pattern of more hits, less omissions and a tendency for fewer false alarms, more self‐corrected responses, and faster reaction times, when compared with subjects presenting WM impairments. The results suggest that this task activates brain areas involved in VWM and discriminates behavioural performances of clinical and non‐clinical groups. It can thus be used as a research methodology for behavioural and neuroimaging studies of VWM in block‐design paradigms.  相似文献   
1000.
Definitional studies of courage have been performed by Western psychologists, but little research has examined Chinese folk courage. Two studies examined conceptions of courage in Chinese culture. In Study 1, the definitions, forms, inner traits, and reactions of courage were described by 307 individuals in China. A content analysis revealed that courage was divided into two forms: individually oriented and socially oriented; and the virtue was composed of persistence, responsibility, and breakthrough. Study 2 conducted in-depth interviews with 27 Chinese participants to explore the nature of courage further. The results suggested similar components; anger, self-confidence, support network, and social atmosphere were most likely to inspire courage; and trying something difficult was the most frequently experienced courageous event. Collectively, persistence and breakthrough were common components of both the current studies and the existing Western literature on courage, while responsibility may be more uniquely Chinese. Implications for prospective training programs are discussed.  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