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   724篇
  免费   27篇
  2023年   6篇
  2022年   6篇
  2020年   13篇
  2019年   16篇
  2018年   24篇
  2017年   15篇
  2016年   23篇
  2015年   24篇
  2014年   6篇
  2013年   104篇
  2012年   24篇
  2011年   26篇
  2010年   12篇
  2009年   18篇
  2008年   25篇
  2007年   24篇
  2006年   19篇
  2005年   21篇
  2004年   18篇
  2003年   23篇
  2002年   23篇
  2001年   13篇
  2000年   23篇
  1999年   10篇
  1998年   6篇
  1997年   5篇
  1996年   6篇
  1995年   8篇
  1992年   15篇
  1991年   6篇
  1990年   7篇
  1989年   5篇
  1988年   5篇
  1987年   6篇
  1986年   9篇
  1985年   11篇
  1984年   10篇
  1983年   6篇
  1982年   7篇
  1979年   9篇
  1978年   7篇
  1977年   6篇
  1976年   4篇
  1975年   9篇
  1973年   10篇
  1972年   5篇
  1969年   9篇
  1968年   10篇
  1965年   6篇
  1960年   4篇
排序方式: 共有751条查询结果,搜索用时 31 毫秒
661.
Smoking withdrawal reports from a clinical trial (n = 893) were submitted to hierarchical linear modeling as a cross-method replication of a heterogeneity approach to withdrawal measurement and to clarify the influence of postcessation smoking on symptom reports. Five individual difference parameters tapping distinct facets of withdrawal were derived: intercepts (mean severity), linear slope (direction and rate of change), quadratic trend (curvature), volatility (scatter) and, among lapsers, a cigarette coefficent (smoking-related deflections of symptoms). All parameters were highly variable across persons. Lapsers had more aversive symptom patterns than abstainers, and symptoms tended to be higherthan otherwise predicted on lapse days. These results reinforce the conclusion that withdrawal symptoms are highly variable and argue against discarding withdrawal data from participants who lapse.  相似文献   
662.
663.
To be effective, criminal justice policies should affect the underlying social norms for which the policies were enacted. This study sought to determine whether public perceptions of criminal justice policies on domestic violence affected social norms. Two waves of data were collected via a telephone survey where a random probability sample of 973 residents was drawn from 4 communities. A structural equation model was tested and confirmed. Results provided strong support for the hypothesis that perceptions of criminal justice policies have direct effects on attitudes toward criminal justice response, and indirect effects on victim-blaming attitudes, both underlying social norms related to domestic violence. The enactment of criminal justice policies, therefore, may have an impact beyond victims and perpetrators and lead to a transformation of the community through the emergence of new social norms. Public awareness campaigns designed to disseminate criminal justice policies may be instrumental in provoking social change.  相似文献   
664.
Increases in the cost of medical care coupled with shorter hospital stays and an aging population are but a few of the reasons why home care for patients has become so important. This study examines variables that contribute to distress among lay-caregivers who provide home care to cancer survivors. Participants consisted of 135 survivor-caregiver dyads in which the caregiver was a member of the survivor's family or a close friend. Measures of caregiver distress were selected from the Ferrell et al. (1995) quality of life tool; predictor variables included cancer survivor and caregiver demographics, physical and emotional health status and behavioural characteristics. Hierarchical regression analysis indicated that, jointly, the three sets of indicators accounted for 35% of caregiver distress. Standardized regression coefficients indicated that relational deprivation (feelings of loss of togetherness, planned activities and contact with other individuals) was the most important predictor of caregiver distress (p<0.01). Female sex, less practice of healthy behaviours, greater number of patient care needs and pessimistic expectations (all ps<0.05) also were significant predictors in the final trimmed model. Results suggest that cancer support services that address the needs of the care receiver with the protection of the family caregiver in mind should be considered.  相似文献   
665.
A new manual search method was used to investigate the impact of naming on object individuation in 12-month-old infants. In Experiment 1, on a two-word trial, an experimenter looked into a box while the infant was watching and provided two labels (e.g., "Look, a fep!" and "Look, a wug!"). On a one-word trial, the experimenter instead repeated the same label (e.g., "Look, a zav!"). After the infant retrieved one object from the box, subsequent search behavior was recorded. Infants searched more persistently (i.e., for a longer duration) after hearing two labels than one, suggesting that hearing two labels led the infants to expect two objects inside the box. In Experiment 2, infants' search behavior did not differ depending on whether they heard one or two emotional expressions, suggesting that the facilitation effect observed in Experiment 1 may be specific to linguistic expressions. Thus, we provide the first evidence that infants as young as 12 months are able to use intentional and referential cues to guide their object representations. These findings also suggest that a rudimentary version of the mutual-exclusivity constraint may be functional by the end of the first year.  相似文献   
666.
Despite the constantly varying stream of sensory information that surrounds us, we humans can discern the small building blocks of words that constitute language (phonetic forms) and perceive them categorically (categorical perception, CP). Decades of controversy have prevailed regarding what is at the heart of CP, with many arguing that it is due to domain-general perceptual processing and others that it is determined by the existence of domain-specific linguistic processing. What is most key: perceptual or linguistic patterns? Here, we study whether CP occurs withsoundless handshapes that are nonethelessphonetic in American Sign Language (ASL), in signers and nonsigners. Using innovative methods and analyses of identification and, crucially, discrimination tasks, we found that both groups separated the soundless handshapes into two classes perceptually but that only the ASL signers exhibited linguistic CP. These findings suggest that CP of linguistic stimuli is based on linguistic categorization, rather than on purely perceptual categorization.  相似文献   
667.
Eliot AO  Baker CW 《Adolescence》2001,36(143):535-543
The purpose of this study was to describe a sample of 40 eating disordered adolescent males in order to complete a series of follow-up studies on adolescent females who were seen for evaluation and treatment at Boston Children's Hospital Outpatient Eating Disorders Clinic between 1981 and 1991. The sample was drawn from all males seen at the clinic (between 1981 and 1995) who were eligible for inclusion because of a diagnosis of anorexia nervosa, bulimia nervosa, or eating disorder-not otherwise specified. Data were collected via retrospective chart review and three self-administered quantitative scales. Although the response rate to the mailed follow-up questionnaires was low, comparisons with the three studies on females were consistent with those of other investigations, suggesting that the course and outcome of these illnesses are remarkably similar for males and females. The findings support the idea that clinicians, coaches, peers, and family members should encourage young men to share concerns about body image and weight at an earlier, less severe juncture, with assurance that these issues are common to both sexes.  相似文献   
668.
Pastoral Psychology -  相似文献   
669.
670.
We examined the extent to which three predictors of children's recall, selected on the basis of their theoretical significance, contributed to the prediction of children's recall for the details of dental operative procedures in a diverse sample of 28 children (54–140 months of age). Parents provided information regarding their children's dental histories and preparation for the dental visit. We obtained behavioral indices of stress from video recordings of the procedures and interviewed the children shortly after treatment to assess their memory. In a significant model predicting open‐ended recall, measures of prior dental experience and parent discussion emerged as unique predictors, although stress did not add to the prediction. The results attest to the importance of incorporating measures of individual differences in investigations of children's reports of their personal experiences. We discuss the importance of children's interpretations in understanding memory for stressful events.Copyright © 2015 John Wiley & Sons, Ltd.  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