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   599篇
  免费   34篇
  2024年   2篇
  2023年   7篇
  2022年   8篇
  2021年   15篇
  2020年   20篇
  2019年   32篇
  2018年   18篇
  2017年   26篇
  2016年   25篇
  2015年   23篇
  2014年   22篇
  2013年   78篇
  2012年   42篇
  2011年   49篇
  2010年   32篇
  2009年   20篇
  2008年   40篇
  2007年   39篇
  2006年   34篇
  2005年   19篇
  2004年   12篇
  2003年   11篇
  2002年   12篇
  2001年   5篇
  2000年   6篇
  1999年   2篇
  1998年   5篇
  1997年   5篇
  1995年   4篇
  1993年   1篇
  1992年   5篇
  1991年   1篇
  1990年   2篇
  1989年   3篇
  1988年   2篇
  1987年   1篇
  1984年   1篇
  1983年   2篇
  1982年   1篇
  1968年   1篇
排序方式: 共有633条查询结果,搜索用时 15 毫秒
61.
62.
63.
In 1994, a clinic for cancer risk counseling was opened at Hadassah University Hospital in Jerusalem. Most of the counselees have been women who had breast cancer and/or a relative with breast cancer. In order to evaluate the effect of this counseling on women's knowledge and perceptions regarding the risks for breast cancer, a questionnaire was given before and after the counseling session to 60 healthy women who came to the clinic because they have relatives with breast cancer. According to the genetic counselors' estimations, most of these women had a significantly increased risk (compared to the general population) of developing cancer. Before counseling, the women overestimated the population risk for breast cancer, the contribution of heredity to morbidity of cancer, and their own risks to get cancer. After counseling session, they gave reduced estimates, closer to the real ones. The subjective perceptions regarding these risks were reduced after counseling, except for the perceptions regarding their relativerisks which have not changed after the counseling. About 90% of the women who came to the clinic wanted to be tested for genetic predisposition to cancer. For most of these women, the expectations that the test can rule out a genetic predisposition to cancer became more realistic after the counseling. The option to first test an affected relative was offered to all families, and a test was actually conducted in 75% of the families.  相似文献   
64.
The scientific community has witnessed growing concern about the high rate of false positives and unreliable results within the psychological literature, but the harmful impact of false negatives has been largely ignored. False negatives are particularly concerning in research areas where demonstrating the absence of an effect is crucial, such as studies of unconscious or implicit processing. Research on implicit processes seeks evidence of above-chance performance on some implicit behavioral measure at the same time as chance-level performance (that is, a null result) on an explicit measure of awareness. A systematic review of 73 studies of contextual cuing, a popular implicit learning paradigm, involving 181 statistical analyses of awareness tests, reveals how underpowered studies can lead to failure to reject a false null hypothesis. Among the studies that reported sufficient information, the meta-analytic effect size across awareness tests was d z = 0.31 (95 % CI 0.24–0.37), showing that participants’ learning in these experiments was conscious. The unusually large number of positive results in this literature cannot be explained by selective publication. Instead, our analyses demonstrate that these tests are typically insensitive and underpowered to detect medium to small, but true, effects in awareness tests. These findings challenge a widespread and theoretically important claim about the extent of unconscious human cognition.  相似文献   
65.
Background and Objectives: Emerging adulthood is often marked with elevated symptoms of anxiety and depression. Hispanic emerging adults may face cultural stressors such as ethnic discrimination that further increase levels of anxiety and depression symptoms. The study aims were to examine if (a) self-esteem mediated effects of ethnic discrimination on symptoms of anxiety and depression, and (b) if gender moderated the indirect effects of discrimination. Design: The study design was cross-sectional self-report. Method: Two moderated mediation models were tested, with 1084 Hispanic emerging adults (ages 18–25) enrolled in institutions of post-secondary in the United States. Results: Results indicated that (a) higher ethnic discrimination was associated with higher anxiety symptoms (β?=?.05, p?=?.04), higher depression symptoms (β?=?.06, p?=?.02), and lower self-esteem (β?=??.30, p?Conclusions: Findings suggest that the mediating effects of self-esteem linking ethnic discrimination with symptoms of anxiety and depression vary between genders.  相似文献   
66.
67.
This study examines the mediating role of effortful control between reactive temperament traits (negative affectivity and extraversion) and children’s internalizing and externalizing behavioural problems. The sample was composed of 424 non-clinical children from 3 to 6 years of age (60% male). Use of a structural equation model revealed effortful control-mediated relations between reactive temperament traits and behavioural problems. Nevertheless, uniquely and directly, negative affect predicted externalizing problems and extraversion predicted internalizing problems. Assessment of invariance by children’s sex showed that the mediating role of effortful control tends to be stronger for externalizing problems in boys than in girls. Results showed no significant age differences. According to these results, effortful control as a method of self-regulation seems to be an essential process through which reactive temperament traits affect a child’s psychological adjustment.  相似文献   
68.
We offer the new software Codex, written in Visual Basic 3.0. It is a tool adequate in observational methodology. Its fundamental objective is to record motor and verbal behavior using the data types proposed by Bakeman and Quera (1995, 1996), together with the field formats proposed by Hall (1963), Weick (1968), Hutt and Hutt (1974), and Anguera (1979). It is designed to allow for data interchange between specific programs in use in observational methodology (SDIS-GSEQ, The Observer, and Theme) and other general programs (spread sheets, statistics applications, word processing programs, sound cards, etc.).  相似文献   
69.
This study uses neuroimaging methods to identify patterns of brain activation among sport fans in reaction to team stimuli. In a whole-brain analysis without selected regions in advance, the purposes were to identify the structures involved when fans are exposed to positive, neutral, and negative events and to learn what events activate more limbic networks. A total of 53 individuals participated in and functional magnetic resonance imaging experiment involving the presentation of videos in various situations. Findings indicate the activation of the cingulate gyrus and other structures of the limbic system, as the hippocampus and parahippocampus. We also found involvement of the ventral tegmental area of the reward system. Additionally, brain activity in emotional regulation and memory areas were more influenced by positive than neutral and negative videos. It was also found the involvement of other areas not directly included in the limbic or reward systems. This study provides the neural basis of fan reactions to team-related stimuli. Sport clubs should be aware that negative content seems to be suppressed from emotional memory and positive videos trigger more emotion and memory areas than neutral and negative videos.  相似文献   
70.
Research results on the association between maternal response to infant' initiative and the development of such initiatives is being presented. This study is based on 239 feeding situations belonging to 41 mother–infant pairs videotaped at home at 30-day intervals, from the beginning of spoon-feeding until 1 year of age. The results showed that the basic hypotheses of this study were confirmed. There was a clear association between maternal responses to initiatives of the infant and four variables: Initiatives, Attempted Initiatives, Aversive Behavior, and Conflictivity. A favorable maternal response went along with more initiatives, fewer Attempts, less Aversivity, and less Conflictivity. Conflictivity was understood as reciprocal exchange of antipathetic reactions such as opposition, disgust, and hostility. Therefore, conflicts show struggle and confrontation between both members of the interaction. Aversivity is the infant's sole reaction to disgust, distaste, or opposition. As the infant risks confrontations with the care-giver to sustain her initiatives, we can say that, although highly influentiable by maternal response, Initiative is a contribution of the infant to her own development. Thus, in our view, a developing self shows an emerging capacity to initiate actions of his/her own. This becomes a relational issue as soon as the infant's initiative hits the interactional field, causing an environmental response that ultimately will allow or impede initiative. In case of impediments, the strong reaction of the infant will produce an impact upon the progressive stages of construction of the relationship, and certainly will be influential upon the further development of the infant's self.  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