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   1239篇
  免费   25篇
  1264篇
  2024年   10篇
  2023年   14篇
  2022年   16篇
  2021年   23篇
  2020年   31篇
  2019年   46篇
  2018年   38篇
  2017年   54篇
  2016年   48篇
  2015年   48篇
  2014年   44篇
  2013年   167篇
  2012年   64篇
  2011年   54篇
  2010年   54篇
  2009年   48篇
  2008年   50篇
  2007年   35篇
  2006年   37篇
  2005年   38篇
  2004年   30篇
  2003年   36篇
  2002年   32篇
  2001年   10篇
  2000年   16篇
  1999年   24篇
  1998年   20篇
  1997年   18篇
  1996年   17篇
  1995年   7篇
  1994年   5篇
  1993年   9篇
  1992年   10篇
  1990年   4篇
  1989年   10篇
  1988年   4篇
  1987年   6篇
  1986年   10篇
  1985年   11篇
  1983年   4篇
  1982年   8篇
  1978年   4篇
  1977年   7篇
  1976年   4篇
  1975年   3篇
  1974年   3篇
  1973年   5篇
  1972年   3篇
  1971年   3篇
  1970年   3篇
排序方式: 共有1264条查询结果,搜索用时 0 毫秒
971.
    
One hundred eighty trauma-focused dissertations published in the United States were examined to determine the variation in risk language used in the informed consents. Level of risk proposed in the informed consents was poorly related to ratings of risk by graduate coders and virtually unrelated to vulnerability factors such as the age of participants and clinical or nonclinical status. Risk language in the informed consents was markedly elevated over that rated by the coders, with more than one third of the dissertations presenting the risk of participation as severe (i.e., associated with substantial risk of reactivity and lasting discomfort). These statements are not in keeping with the literature and raise ethical concerns in relation to (a) nocebo effects, (b) distortion of correlational findings, and (c) discouragement of participants from disclosing trauma in other settings.  相似文献   
972.
Imprecisely known quantities (e.g., predictions) are often described in approximate terms as “more than X” or “less than Y” (e.g., “Ann will earn more than $50 000” or “less than $60 000”). Such phrases carry both quantitative and qualitative (pragmatic) information. Three studies are reported showing that lower limit estimates (more than, over, minimum) are generally more frequent, and considered more appropriate than upper limit estimates (less than, under, maximum) over a wide range of contexts. This is partly due to scalar properties of the number system, where lower numbers are attained before, and included in higher numbers, but not vice versa. As a result, upper limit statements are perceived as negations, and carry more specific information about the speaker's communicative concerns. Upper limit statements are preferred with amounts or quantities that can be perceived as small, whereas lower limit statements can be used both to indicate large quantities and as a default. Copyright © 2009 John Wiley & Sons, Ltd.  相似文献   
973.
974.
975.
    
Sleep–wake behaviours and temperament were examined longitudinally for trait stability and relationship to behavioural state regulation from infancy to early childhood. Subjects were 120 low‐risk, full‐term infants from a middle class sample. At 6 weeks, parents completed three consecutive days of the Baby's Day Diary which measures sleep, wake, fuss, feed and cry states and the Infant Characteristics Questionnaire. At 16 months, parents assessed sleep behaviours with the Sleep Habits Inventory and temperament with the Toddler Symptom Checklist. At 24 months, parents repeated 3 days of the Baby's Day Diary. Structural Equation Modelling was used to examine the cross‐age hypotheses for sleep–wake and temperament associations. From early infancy to toddlerhood, sleep–wake behaviours and irritable temperament were notably stable but independent in this cohort. Copyright © 2011 John Wiley & Sons, Ltd.  相似文献   
976.
    
Teaching styles were investigated in 28 middle‐class sibling dyads (older sibling M age = 8.2 yrs; younger sibling M age =5.11 yrs) using two sets of block design tasks (five easy; five hard). Older siblings employed a greater number of strategies (i.e. physical demonstrations, scaffolding, corrective feedback) in the hard than in the easy tasks, thus demonstrating the ability to adjust teaching strategies according to task difficulty. Teachers also employed more frequent strategies when learners were younger indicating that they may be sensitive to developmental differences. In the hard tasks, learners responded positively to teacher guidance, but were also more likely to reject the teacher's help, perhaps demonstrating responsibility for their own learning. Findings are discussed in light of current social‐cognitive approaches highlighting the important roles of both teacher and learner during episodes of sibling teaching in middle childhood. Copyright © 2006 John Wiley & Sons, Ltd.  相似文献   
977.
  总被引:1,自引:0,他引:1  
Reactions to receiving or failing to receive rejection/acceptance letters were examined from the perspective of psychological contracts. In Study 1, a laboratory experiment, organizational obligation fulfillment was predicted by status (rejection/acceptance) and notification (no notification; notification only; notification plus explanation) such that those rejected without notification reported the lowest level of organizational obligation fulfillment. In Study 2, a field survey, applicants who were rejected with no rejection communication were more likely to believe that the organization failed to fulfill its obligations, and reported more negative intentions toward the organization compared to those who received a rejection communication. In both studies, organizational obligation fulfillment accounted for incremental variance in applicant intentions, beyond that of applicant status and type of rejection notification.  相似文献   
978.
    
Uncertain quantities can be described by single‐point estimates of lower interval bounds (X1), upper interval bounds (X2), two‐bound estimates (separate estimates of X1 and X2), and by ranges (X1?X2). A price estimation task showed that single‐bound estimates phrased as “T costs more than X1” and “T costs less than X2,” yielded much larger intervals than “minimum X1” and “maximum X2.” This difference can be attributed to exclusive interpretations of X1 and X2 in the first case (X1 and X2 are unlikely values), and inclusive interpretations in the second (X1 and X2 are likely values). This pattern of results was replicated in other domains where participants estimated single targets. When they estimated a distribution of targets, the pattern was reversed. “Minimum” and “maximum” values of variable quantities (e.g., flight prices) were found to delimit larger intervals than “more than” and “less than” estimates. Copyright © 2006 John Wiley & Sons, Ltd.  相似文献   
979.
    
Objective: To develop an interview method that combined the qualities of unstructured interviews, such as openness to unexpected information, and the qualities of structured interviews, such as adequate psychometric properties. Method: The innovative principle of the Algorithmically Structured Systematic Exploration of Subject's State of Mind (Assess_Mind) is to investigate, not the contents of mental phenomenology, but five mental functions – or “registers” – that mediate the experience of patients. The functioning of these registers – affects, fears, desires, memories, and associations of ideas – is explored using a rigorously defined algorithm for interviewing. Scales have been developed to rate 390 interviews on psychopathological dimensions of interest in a study of patients undergoing in vitro fertilization (IVF) treatment. Results: As shown by vignettes from the various registers, the Assess_Mind provides detailed, comprehensive, and deep information on the five registers it investigates. Conclusion: Although the Assess_Mind uses a structured algorithm for data collection, its usefulness as a clinical research tool is based on the width and depth of its coverage of patients' current mental experience. Copyright © 2007 John Wiley & Sons, Ltd.  相似文献   
980.
    
As many extant texts demonstrate, the world of the Ancient Near East was replete with curses. They managed almost every feature of life from simple business affairs to complex international relations. Of significant importance for the survivability of any society at that time was the maintenance of the happiness of the local deity or deities whose ongoing presence and patronage was inexorably linked to the preservation of their respective tribe, city, or empire. Cursing importuned these patron deities, as well as personal deities, to injure others so that the well‐being of their tribal or city residents might be sustained. A curse's ultimate purpose was to inspire heavenly rage by soliciting supernatural powers to intercede in situations that were believed to be beyond mortal control such as injustices, disease, injury, or just plain bad luck. The following study will review the underlying features of all curses in the Ancient Near East. The deities, as will be shown, played a central role in the execution of maledictions. They were viewed as the agents who would, in one way or another, realize the requested punishment should they judge in the speaker's favor. This analysis will be followed by an examination of the most common types of curses the Ancient Near Easterners used.  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