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   1432篇
  免费   112篇
  2023年   16篇
  2022年   14篇
  2021年   27篇
  2020年   53篇
  2019年   38篇
  2018年   67篇
  2017年   60篇
  2016年   72篇
  2015年   62篇
  2014年   48篇
  2013年   230篇
  2012年   73篇
  2011年   87篇
  2010年   60篇
  2009年   56篇
  2008年   95篇
  2007年   71篇
  2006年   51篇
  2005年   39篇
  2004年   29篇
  2003年   43篇
  2002年   40篇
  2001年   39篇
  2000年   25篇
  1999年   17篇
  1998年   11篇
  1997年   11篇
  1996年   13篇
  1995年   5篇
  1994年   4篇
  1993年   5篇
  1991年   6篇
  1990年   5篇
  1989年   3篇
  1986年   2篇
  1985年   5篇
  1984年   3篇
  1983年   4篇
  1982年   6篇
  1981年   2篇
  1980年   3篇
  1978年   4篇
  1976年   2篇
  1975年   6篇
  1974年   2篇
  1973年   3篇
  1972年   2篇
  1971年   3篇
  1938年   3篇
  1937年   3篇
排序方式: 共有1544条查询结果,搜索用时 15 毫秒
221.
We examined how diverse and cumulated traumatic experiences predicted maternal prenatal mental health and infant stress regulation in war conditions and whether maternal mental health mediated the association between trauma and infant stress regulation. Participants were 511 Palestinian mothers from the Gaza Strip who reported exposure to current war trauma (WT), past childhood emotional (CEA) and physical abuse, socioeconomic status (SES), prenatal mental health problems (posttraumatic stress disorder and depression symptoms), and perceived stress during their secondtrimester of pregnancy as well as infant stress regulation at 4 months. While all trauma types were associated with high levels of prenatal symptoms, CEA had the most wide‐ranging effects and was uniquely associated with depression symptoms. Concerning infant stress regulation, mothers’ CEA predicted negative affectivity, but only among mothers with low WT. Against hypothesis, the effects of maternal trauma on infant stress regulation were not mediated by mental health symptoms. Mothers’ higher SES was associated with better infant stress regulation whereas infant prematurity and male sex predisposed for difficulties. Our findings suggest that maternal childhood abuse, especially CEA, should be a central treatment target among war‐exposed families. Cumulated psychosocial stressors might increase the risk for transgenerational problems.  相似文献   
222.
Alvin Plantinga's evolutionary argument against naturalism states that evolution cannot produce warranted beliefs. In contrast, according to Plantinga, Christian theism provides (I) properly functioning cognitive faculties in (II) an appropriate cognitive environment, in accordance with (III) a design plan aimed at producing true beliefs. But does theism fulfill criteria I–III? Judging from the Bible, God employs deceit in his relations with humanity, rendering our cognitive functions unreliable (I). Moreover, there is no reason to suppose that God's purpose would be to produce true beliefs in humans (III). Finally, from the theistic/religious perspective, it is impossible to tell whether observations have natural or supernatural causes, which undermines an appropriate cognitive environment (II). Reliable identification of deceit or miracles could alleviate these problems, but the theistic community has failed to resolve this issue. Dismissal of parts of the Bible, or attempts to find alternative interpretations, would collapse into skepticism or deism. Thus, Plantinga's problem of epistemic warrant backfires on theism.  相似文献   
223.
We examined whether long QT syndrome (LQTS) mutation carrier status or symptomatic LQTS are associated with depression, and whether there are sex differences in these potential relationships. The sample comprised 782 participants (252 men). Of the 369 genetically defined LQTS mutation carriers, 169 were symptomatic and 200 were asymptomatic. The control group consisted of 413 unaffected relatives. Depression was assessed using the Beck Depression Inventory-II (BDI-II). No association was found for LQTS mutation carrier status with depression. The multinomial logistic regression showed that LQTS mutation carrier men with arrhythmic events scored higher on depression compared with the control group, even when adjusting for age, β-blockers, antidepressants, and social support (OR = 1.09, 95 % CI [1.02, 1.15], p = .007). The binary logistic regression comparing symptomatic and asymptomatic LQTS mutation carriers showed that symptomatic LQTS was associated with depression in men (OR = 1.10, 95 % CI [1.03, 1.19], p = .009). The results were unchanged when additionally adjusted for education. These findings suggest that symptomatic LQTS is associated with depression in men but not in women. Overall, however, depression is more frequent in women than men. Thus, regular screening for depression in LQTS mutation carriers and their unaffected family members can be important.  相似文献   
224.
Even though managed care systems research emerged as an important field in psychotherapy research in the last years, studies examining the effects of its psychotherapeutic measures on outcome are still rare, especially in Germany. Little is known about the effectiveness of psychotherapy in different treatment settings, i. e. whether and how patients in outpatient psychotherapy differ from inpatients in respect to initial impairment status and pace of improvement. Two longitudinal data sets—inpatient (N=759) and outpatient (N=521)—were used to scrutinize these questions. Results yielded no differences between treatment settings as to patients’ initial impairment. A linear model adequately represented the mean course of improvement in inpatient psychotherapy. For outpatient psychotherapy, a bipartite linear model for treatment and for the follow-up period proved more appropriate. During 1 year, patients in both settings attained a similar amount of improvement. However, pace of in-treatment improvement was 10 times faster in the inpatient setting. Initial impairment substantially predicted the course of psychological improvement in both treatment settings.  相似文献   
225.
This paper addresses a recent suggestion that moral particularists can extend their view to countenance default reasons (at a first stab, reasons that are pro tanto unless undermined) by relying on certain background expectations of normality. I first argue that normality must be understood non-extensionally. Thus if default reasons rest on normality claims, those claims won't bestow upon default reasons any definite degree of extensional generality. Their generality depends rather on the contingent distributional aspects of the world, which no theory of reasons should purport to settle. Appeals to default reasons cannot therefore uniquely support particularism. But this argument also implies that if moral generalism entailed that moral reasons by necessity have invariant valence (in the natural extensional sense), it would be a non-starter. Since generalism is not a non-starter, my argument forces us to rethink the parameters of the generalism-particularism debate. Here I propose to clarify the debate by focusing on its modal rather than extensional aspects. In closing, I outline the sort of generalism that I think is motivated by my discussion, and then articulate some worries this view raises about the theoretical usefulness of the label ‘default reason’.  相似文献   
226.
In multiple-list learning, retrieval during learning has been suggested to improve recall of the single lists by enhancing list discrimination and, at test, reducing interference. Using electrophysiological, oscillatory measures of brain activity, we examined to what extent retrieval during learning facilitates list encoding. Subjects studied 5 lists of items in anticipation of a final cumulative recall test and did either a retrieval or a no-retrieval task between study of the lists. Retrieval was from episodic memory (recall of the previous list), semantic memory (generation of exemplars from an unrelated category), or short-term memory (2-back task). Behaviorally, all 3 forms of retrieval enhanced recall of both previously and subsequently studied lists. Physiologically, the results showed an increase of alpha power (8-14 Hz) from List 1 to List 5 encoding when no retrieval activities were interpolated but no such increase when any of the 3 retrieval activities occurred. Brain-behavior correlations showed that alpha-power dynamics from List 1 to List 5 encoding predicted subsequent recall performance. The results suggest that, without intermittent retrieval, encoding becomes ineffective across lists. In contrast, with intermittent retrieval, there is a reset of the encoding process for each single list that makes encoding of later lists as effective as encoding of early lists.  相似文献   
227.
This study examined the associations between infant and childhood growth and severe personality disorders. Among 4,689 men and 4,200 women of the Helsinki Birth Cohort Study 1934-1944, 81 men and 68 women had been hospitalized with an ICD (-8, -9, -10) diagnosis of personality disorder in adulthood. Among men, slower gain in BMI between birth and 6 months, faster gain in weight and BMI between 6 months and 1 year, and slower gains in them between 7 and 11 years of age predicted an increased risk of hospitalization for personality disorders. Thinness at 6 months and again at 11 years also showed significant association with personality disorders among men. Among women, slower gain in height between 2 and 7 years predicted hospitalization for personality disorders. Our findings show the importance of early growth as a vulnerability factor of personality disorders severe enough to justify hospitalization.  相似文献   
228.
In this paper we argue that the emerging concept of episodic future thought (EFT) is a good candidate for capturing the core mental processes at play when forming an intention. Furthermore, we argue that tapping essential EFT features can be helpful in understanding how statements on the forming of true and false intentions may differ. Specifically, we argue that the processes relevant for constructing a convincing cover‐story (which a guilty suspect needs to mask his criminal intention) will be much less characterized by the typical EFT features. To test our assumption we devised a new experimental set‐up accommodating the main characteristics of intent and allowing for episodic future thought. The combined empirical evidence strongly supports our assumption that EFT is a helpful concept for illuminating the differences that may occur when forming true and false intentions. Copyright © 2010 John Wiley & Sons, Ltd.  相似文献   
229.
The relationship between self‐regulatory capacities and self‐esteem as well as well‐being is examined by a mediation model that views self‐regulation as promoting the development of identity achievement which, in turn, is expected to be associated with well‐being. Among secondary school students (Study 1) identity achievement mediated the association between the self‐regulatory capacity of attention control and self‐esteem. In Study 2 (university students), the mediational effect of identity achievement was found for the relationship between the self‐regulatory capacity of action control and well‐being. Explicit motives moderated this association. In sum, a firm identity enhances well‐being by lending a sense of continuity to one's life. However, explicit motives have a substitution effect by giving direction to life when lacking firm identity commitments. Copyright © 2010 John Wiley & Sons, Ltd.  相似文献   
230.
The primary aim of this three‐wave 10‐year follow‐up study was to investigate the intra‐individual change trajectories of job‐related affective well‐being among Finnish managers (n= 402). Job‐related affective well‐being as indicated by anxiety, depression, comfort, and enthusiasm was measured in 1996, 1999, and 2006. The characteristics of the trajectories were sought from experienced career disruptions (i.e., periods of unemployment or lay‐offs) and perceived job insecurity. The growth mixture modelling (GMM) revealed altogether three latent trajectories that differed from each other in their mean levels and regard to changes in job‐related affective well‐being over time: (1) high and improving well‐being (n= 347), (2) decreased well‐being (n= 32), and (3) low and improving well‐being (n= 23). The associations between job‐related affective well‐being trajectories and career disruptions depended upon the timing of the career disruptions. In addition, perceived job insecurity is associated with concurrently decreased occupational well‐being. Overall, the results highlighted both typical and untypical development trajectories of job‐related affective well‐being and related career characteristics.  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