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   790篇
  免费   35篇
  国内免费   353篇
  2020年   21篇
  2018年   12篇
  2017年   16篇
  2016年   15篇
  2015年   11篇
  2014年   12篇
  2013年   32篇
  2012年   20篇
  2011年   34篇
  2010年   22篇
  2009年   21篇
  2008年   136篇
  2007年   13篇
  2006年   15篇
  2005年   80篇
  2004年   80篇
  2003年   17篇
  2002年   14篇
  2001年   26篇
  2000年   8篇
  1999年   12篇
  1998年   11篇
  1995年   5篇
  1993年   29篇
  1992年   37篇
  1991年   31篇
  1990年   34篇
  1989年   33篇
  1988年   24篇
  1987年   35篇
  1986年   30篇
  1984年   36篇
  1983年   7篇
  1982年   30篇
  1981年   16篇
  1980年   27篇
  1979年   16篇
  1978年   6篇
  1977年   6篇
  1976年   7篇
  1975年   14篇
  1973年   12篇
  1972年   7篇
  1971年   20篇
  1970年   11篇
  1969年   13篇
  1966年   4篇
  1964年   5篇
  1963年   5篇
  1959年   6篇
排序方式: 共有1178条查询结果,搜索用时 15 毫秒
111.
This study examines perceived stress and its relationship to depressive symptoms, life changes and functional capacity in a large sample of individuals who are positive for the Huntington disease (HD) gene expansion but not yet diagnosed. Participants were classified by estimated proximity to HD diagnosis (far, mid, near) and compared with a non-gene-expanded comparison group. Persons in the mid group had the highest stress scores. A significant interaction between age and time since HD genetic testing was also found. Secondary analyses using data from a different data collection point and including a diagnosed group showed the highest stress scores in the diagnosed group. Possible explanations and implications are discussed.  相似文献   
112.
113.
The Fear Survey Schedule for Children-Revised (Ollendick, 1983) is an 80-item self-report instrument that has been used internationally to asses the number of fears and general level of fearfulness among children. Despite its widespread use, this instrument has not been adapted to the South African context. The present study addressed this gap by means of a 2-phase investigation aimed at developing a South African version of the instrument. In Phase 1, semistructured interviews were conducted with 40 children (7 to 13 years of age). Qualitative data obtained from these interviews were used to construct additional items for inclusion in the South African Fear Survey Schedule for Children-Revised. The modified scale, consisting of 97 items, was then administered to a sample of 646 children between the ages of 7 and 13 years. Further psychometric considerations resulted in the final version of the scale consisting of 74 items with high internal consistency (α=.97). The factor structure was explored by means of principal component analysis with varimax rotation and a 5-factor solution was found to provide the best conceptual fit. The factors identified were as follows: Fear of Death and Danger; Fear of the Unknown; Fear of Small Animals and Minor Threats to Self; Large Animal Fears; and Situational Fears. Differences between the South African version and the original Fear Survey Schedule for Children-Revised are noted and implications for the study of fear in South Africa and other countries are discussed.  相似文献   
114.
This article tells the story of the development of an outcome study of psychoanalysis and describes the debate that took place over critical methodological issues. The protocol committee included career psychotherapy researchers who have conducted rigorous outcome studies, clinical psychoanalysts, study methodologists, and a statistician with clinical trial expertise. The committee worked for two years to develop the study design. This project is based on the premise that clinical psychoanalysis is a treatment. Areas specifically addressed are the goals and hypothesis of the study, inclusion and exclusion criteria, choice of psychotherapies as comparison treatments, definition of treatments and selection of therapists, use of medication, development of a treatment adherence measure, randomization of patient assignment vs. patient self-selection, and primary outcome measures. The execution of this outcome study will require significant effort and resources. A positive result would boost the standing of psychoanalysis, but the results may not support the primary hypothesis that there are therapeutic benefits unique to psychoanalysis and that psychoanalysis can effect demonstrable changes in a patient's mental life and adaptation that are not achieved by treatments of different orientation and/or lesser intensity. However, more important than whatever specific results emerge is what executing such a study requires of our field: the process of addressing the clinical issues that a study design requires, the creation of a network of analysts around the country working on a common project, and the joining of the clinical psychoanalytic community with a community of psychodynamic researchers.  相似文献   
115.
116.
Emerging findings from studies with infants at familial high risk for autism spectrum disorder (ASD), owing to an older sibling with a diagnosis, suggest that those who go on to develop ASD show early impairments in the processing of stimuli with both social and non‐social content. Although ASD is defined by social‐communication impairments and restricted and repetitive behaviours, the majority of cognitive theories of ASD posit a single underlying factor, which over development has secondary effects across domains. This is the first high‐risk study to statistically differentiate theoretical models of the development of ASD in high‐risk siblings using multiple risk factors. We examined the prediction of ASD outcome by attention to social and non‐social stimuli: gaze following and attentional disengagement assessed at 13 months in low‐risk controls and high‐risk ASD infants (who were subsequently diagnosed with ASD at 3 years). When included in the same regression model, these 13‐month measures independently predicted ASD outcome at 3 years of age. The data were best described by an additive model, suggesting that non‐social attention, disengagement, and social attention as evidenced by gaze following, have a cumulative impact on ASD risk. These data argue against cognitive theories of ASD which propose that a single underlying factor has cascading effects across early development leading to an ASD outcome, and support multiple impairment models of ASD that are more consistent with recent genetic and neurobiological evidence.  相似文献   
117.
Germline genomic testing is increasingly used in research to identify genetic causes of disease, including cancer. However, there is evidence that individuals who are notified of clinically actionable research findings have difficulty making informed decisions regarding uptake of genetic counseling for these findings. This study aimed to produce and pilot test a decision aid to assist participants in genomic research studies who are notified of clinically actionable research findings to make informed choices regarding uptake of genetic counseling. Development was guided by published literature, the International Patient Decision Aid Standards, and the expertise of a steering committee of clinicians, researchers, and consumers. Decision aid acceptability was assessed by self-report questionnaire. All 19 participants stated that the decision aid was easy to read, clearly presented, increased their understanding of the implications of taking up research findings, and would be helpful in decision-making. While low to moderate levels of distress/worry were reported after reading the booklet, a majority of participants also reported feeling reassured. All participants would recommend the booklet to others considering uptake of clinically actionable research findings. Results indicate the decision aid is acceptable to the target audience, with potential as a useful decision support tool for genomic research participants.  相似文献   
118.
119.
120.
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