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   6101篇
  免费   144篇
  国内免费   1篇
  6246篇
  2023年   30篇
  2022年   26篇
  2021年   35篇
  2020年   69篇
  2019年   76篇
  2018年   218篇
  2017年   200篇
  2016年   299篇
  2015年   168篇
  2014年   124篇
  2013年   257篇
  2012年   376篇
  2011年   380篇
  2010年   74篇
  2009年   98篇
  2008年   110篇
  2007年   107篇
  2006年   93篇
  2005年   1367篇
  2004年   697篇
  2003年   488篇
  2002年   156篇
  2001年   33篇
  2000年   18篇
  1999年   34篇
  1997年   8篇
  1994年   14篇
  1992年   25篇
  1991年   41篇
  1990年   60篇
  1989年   44篇
  1988年   27篇
  1987年   41篇
  1986年   39篇
  1985年   29篇
  1984年   27篇
  1983年   22篇
  1979年   34篇
  1978年   10篇
  1976年   12篇
  1975年   28篇
  1974年   32篇
  1973年   30篇
  1972年   25篇
  1971年   25篇
  1970年   17篇
  1969年   19篇
  1968年   16篇
  1967年   17篇
  1966年   16篇
排序方式: 共有6246条查询结果,搜索用时 0 毫秒
931.
932.
933.
934.
935.
Although psychiatric symptom severity and impairment are overlapping but nevertheless distinct illness parameters, little research has examined whether variables found to be associated with the severity are also correlated with symptom-induced impairment. Parents and teachers completed ratings of symptom-induced impairment for DSM-IV-referenced syndromes, and parents completed a background questionnaire for a consecutively referred sample of primarily male (81 %) 6-to-12 year olds with autism spectrum disorder (ASD) (N?=?221). Some clinical correlates (e.g., IQ?<?70, maternal level of education, pregnancy complications, current use of psychotropic medication, season of birth) were associated with impairment for several disorders, whereas others were correlated with only a few syndromes (e.g., gender, co-morbid medical conditions) or were not related to impairment in any disorder (e.g., family psychopathology). There was little convergence in findings for parents’ versus teachers’ ratings. Some clinical correlates (e.g., season of birth, current psychotropic medication, maternal education) were unique predictors of three or more disorders. Pregnancy complications were uniquely associated with social anxiety and schizoid personality symptom-induced impairment. IQ was a unique predictor of schizophrenia, ASD, oppositional defiant disorder symptom-induced impairment. Children whose mothers had relatively fewer years of education had greater odds for symptom-induced impairment in social anxiety, depression, aggression, and mania and greater number of impairing conditions. Season of birth was the most robust correlate of symptom-induced impairment as rated by teachers but not by parents. Children born in fall evidenced higher rates of co-occurring psychiatric and ASD symptom-induced impairment and total number of impairing conditions. Many variables previously linked with symptom severity are also correlated with impairment.  相似文献   
936.
Although the belief that life gets better and better over time is widespread, individuals who perceive their lives to be improving over time report less positive functioning. Here we report an experimental study based on self-discrepancy theory (Higgins in Psychol Rev 94:319–340, 1987) in which the type of future self-guide (ideal, ought, undesired, unspecified) was manipulated across young adult participants. Perceived self-discrepancy and subjective life satisfaction trajectories (derived from ratings of past, current, and anticipated future life satisfaction) were impacted as expected. Subjective trajectories (current-to-future) were associated with greater perceived discrepancies in the undesired future condition only. Emotional distress was associated with greater perceived discrepancy from a positive future (ideal, ought, unspecified) and more steeply inclining subjective trajectories (current-to-future), along with less perceived discrepancy from an undesired future and less steeply declining subjective trajectories (current to undesired future). Thus, temporal self-discrepancy may shape temporal life satisfaction evaluations and associated emotional reactions.  相似文献   
937.
When forecasting how they will feel in the future, people overestimate the impact that imagined negative events will have on their affective states, partly because they underestimate their own psychological resiliency. Because self-affirmation enhances resiliency, two studies examined whether self-affirmation prior to forecasting reduces the extremity of affective forecasts. Participants in self-affirmation conditions completed a values scale or wrote an essay asserting their most important value, whereas participants in the no-affirmation condition asserted a relatively unimportant value. Participants then predicted their affective reactions to a negative or positive imagined event. In both studies, self-affirmation reduced the unpleasant affect expected to result from a negative event, but had no impact on affective forecasts for a positive event. This pattern was mediated by participants’ cognitive appraisals of the imagined event, but not by differential focus on that event. Results are consistent with self-affirmation activating or enhancing psychological resiliency to counteract immune neglect during affective forecasting of a negative event.  相似文献   
938.
Latina cancer survivors report higher levels of distress and depression and lower levels of social quality of life and overall health‐related quality of life when compared with all other cancer survivors. Cultural values influence cancer survivorship; however, little research to date has examined how aspects of the Latina culture may be healing during the cancer journey. Therefore, the purpose of this article is to present findings from a qualitative study exploring the influence of culture on quality of life for Latina breast cancer survivors. The authors use consensual qualitative research to understand the lived experiences of Latina breast cancer survivors.  相似文献   
939.
I explain what exactly constrains presupposition projection in compound sentences and argue that the presuppositions that do not project are conditionalized, giving rise to inferable conditional presuppositions. I combine elements of (Gazdar in Pragmatics: implicature, presupposition, and logical form. Academic Press, New York 1979) and (van der Sandt in Context and presupposition. Croom Helm, London 1988) which, together with an additional, independently motivated assumption, make it possible to construct an analysis that makes correct predictions. The core of my proposal is as follows: When a speaker felicitously utters a compound sentence whose constituent clauses (considered in isolation) require presuppositions, the hearer will infer that the speaker presupposes those propositions, unless the sentence contains some element that makes the hearer realize that, if the speaker actually presupposed them, she would be either uninformative or inconsistent in her beliefs. In these cases, the propositions that would have been presupposed, had the clauses been uttered in isolation, will not be presupposed, i.e. the clausal presuppositions will not project.  相似文献   
940.
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