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   439篇
  免费   23篇
  国内免费   1篇
  463篇
  2023年   5篇
  2021年   3篇
  2020年   6篇
  2019年   9篇
  2018年   12篇
  2017年   19篇
  2016年   16篇
  2015年   11篇
  2014年   8篇
  2013年   38篇
  2012年   20篇
  2011年   21篇
  2010年   14篇
  2009年   18篇
  2008年   20篇
  2007年   17篇
  2006年   13篇
  2005年   20篇
  2004年   16篇
  2003年   13篇
  2002年   8篇
  2001年   7篇
  2000年   4篇
  1999年   5篇
  1997年   5篇
  1996年   3篇
  1995年   4篇
  1993年   6篇
  1992年   6篇
  1991年   9篇
  1989年   5篇
  1988年   4篇
  1985年   5篇
  1984年   3篇
  1977年   4篇
  1975年   2篇
  1973年   3篇
  1972年   6篇
  1971年   6篇
  1970年   2篇
  1969年   5篇
  1968年   3篇
  1967年   7篇
  1966年   5篇
  1965年   6篇
  1964年   2篇
  1963年   5篇
  1962年   3篇
  1961年   5篇
  1960年   4篇
排序方式: 共有463条查询结果,搜索用时 15 毫秒
41.
The moderating effects of two psychological resources—attachment style and perceived social support—on adjustment were studied in 109 infertile women, examining the effects of duration of infertility and of primary (the woman has no child of her own) versus secondary (the woman already has a child of her own) infertility. Subjects were administered questionnaires measuring marital adjustment, psychological distress, and well-being. A model viewing attachment style and social support as moderators between stress psychological well-being was explored. The results showed that among the objective characteristics, only duration of infertility had any impact on the psychological measures. Furthermore, the psychological resources were highly associated with the adjustment scores in general. A hierarchical regression analysis showed that attachment style and social support both were related to marital quality and to psychological well-being and that these two resources function as stress moderators. It was concluded that attachment style and social support are important resources for individuals in times of stress, as exemplified in the infertility situation.  相似文献   
42.
We examined trajectories of academic and social functioning in children with attention-deficit/hyperactivity disorder (ADHD) to identify those who might be at risk for especially severe levels of academic and social impairment over time. We estimated a series of growth mixture models using data from two subsamples of children participating in the NIMH Collaborative Multisite Multimodal Treatment Study of Children with ADHD (MTA) including those with at least baseline and 96-month data for reading and mathematics achievement (n = 392; 77.3% male; M age = 7.7; SD = 0.8) or social skills ratings from teachers (n = 259; 74.9% male; M age = 7.6; SD = 0.8). We compared latent trajectories for children with ADHD to mean observed trajectories obtained from a local normative (i.e., non-ADHD) comparison group (n = 289; 80.6% male; M age = 9.9; SD = 1.1). Results indicated six latent trajectory classes for reading and mathematics and four classes for teacher social skills ratings. There was not only a relationship between trajectories of inattention symptoms and academic impairment, but also a similarly strong association between trajectory classes of hyperactive-impulsive symptoms and achievement. Trajectory class membership correlated with socio-demographic and diagnostic characteristics, inattention and hyperactive-impulsive symptom trajectories, externalizing behavior in school, and treatment receipt and dosage. Although children with ADHD display substantial heterogeneity in their reading, math, and social skills growth trajectories, those with behavioral and socio-demographic disadvantages are especially likely to display severe levels of academic and social impairment over time. Evidence-based early screening and intervention that directly address academic and social impairments in elementary school-aged children with ADHD are warranted. The ClinicalTrials.gov identifier is NCT00000388.  相似文献   
43.
Biomedical research policy in recent years has often tried to make such research more ‘translational’, aiming to facilitate the transfer of insights from research and development (R&D) to health care for the benefit of future users. Involving patients in deliberations about and design of biomedical research may increase the quality of R&D and of resulting innovations and thus contribute to translation. However, patient involvement in biomedical research is not an easy feat. This paper discusses the development of a method for involving patients in (translational) biomedical research aiming to address its main challenges.After reviewing the potential challenges of patient involvement, we formulate three requirements for any method to meaningfully involve patients in (translational) biomedical research. It should enable patients (1) to put forward their experiential knowledge, (2) to develop a rich view of what an envisioned innovation might look like and do, and (3) to connect their experiential knowledge with the envisioned innovation. We then describe how we developed the card-based discussion method ‘Voice of patients’, and discuss to what extent the method, when used in four focus groups, satisfied these requirements. We conclude that the method is quite successful in mobilising patients’ experiential knowledge, in stimulating their imaginaries of the innovation under discussion and to some extent also in connecting these two. More work is needed to translate patients’ considerations into recommendations relevant to researchers’ activities. It also seems wise to broaden the audience for patients’ considerations to other actors working on a specific innovation.  相似文献   
44.
45.
Epidemiologic, prospective, and retrospective research confirms that family relational variables are significant risk factors for the development of mental and physical health problems in children as well as adults. In addition, relationships also play a moderating role in the maintenance, exacerbation, or amelioration of chronic health problems. Although acknowledgment of the importance of these variables in the pathophysiology of a number of health conditions is reaching more prominence, the integration of assessments of family factors as part of standard health care has made little progress. With the arrival of the Affordable Care Act in the United States, there is a desire for earlier identification of these risk factors, and the ability to implement prevention programs that reduce risk, and enhance protective factors. On a global level, there is increased awareness of the health impact of relational problems, for example, many countries have attempted to implement programs to decrease domestic violence. More reliable and standardized assessments of key relational processes will enhance both of these missions, and allow comparison of a variety of prevention and intervention programs. This article discusses progress over the last decade in constructing more reliable definitions of relationship processes, how these have been integrated into the Diagnostic and Statistical Manual 5th edition (DSM‐5), and progress toward implementation into the World Health Organization's International Classification of Diseases (ICD‐11).  相似文献   
46.
In newly formed groups, informal hierarchies emerge automatically and readily. In this study, we argue that emergent group hierarchies enhance group performance (Hypothesis 1) and we assume that the more the power hierarchy within a group corresponds to the task‐competence differences of the individual group members, the better the group performs (Hypothesis 2). Twelve three‐person groups and 28 four‐person groups were investigated while solving the Winter Survival Task. Results show that emerging power hierarchies positively impact group performance but the alignment between task‐competence and power hierarchy did not affect group performance. Thus, emergent power hierarchies are beneficial for group performance and although they were on average created around individual group members' competence, this correspondence was not a prerequisite for better group performance.  相似文献   
47.
48.
49.
50.
The purpose of this study was to investigate cultural differences between Danish and American children at 2 and 3 years as measured with the developmental test Bayley‐III, and to investigate the Bayley‐III Language Scale validity. The Danish children (N = 43) were tested with the Bayley‐III and their parents completed an additional language questionnaire (the MacArthur‐Bates CDI). Results showed that scores from the Danish children did not differ significantly from the American norms on the Cognitive or Motor Scale, but the Danish sample scored significantly higher on the Language Scale. A comparison of the Bayley‐III Language subtests with the CDI showed that the two measures correlated significantly, but the percentile score from the CDI was significantly higher than the percentile score from the Bayley‐III Language subtests. This could be because the two instruments measure slightly different areas of language development, or because the Bayley‐III overestimates language development in Danish children. However, due to the limitations of the current study, further research is needed to clarify this issue.  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