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   19708篇
  免费   965篇
  国内免费   15篇
  2022年   145篇
  2021年   211篇
  2020年   336篇
  2019年   328篇
  2018年   520篇
  2017年   526篇
  2016年   506篇
  2015年   362篇
  2014年   408篇
  2013年   1695篇
  2012年   782篇
  2011年   861篇
  2010年   507篇
  2009年   417篇
  2008年   657篇
  2007年   589篇
  2006年   509篇
  2005年   401篇
  2004年   396篇
  2003年   380篇
  2002年   365篇
  2001年   728篇
  2000年   736篇
  1999年   482篇
  1998年   196篇
  1997年   188篇
  1996年   144篇
  1993年   150篇
  1992年   367篇
  1991年   337篇
  1990年   353篇
  1989年   344篇
  1988年   326篇
  1987年   295篇
  1986年   316篇
  1985年   309篇
  1984年   240篇
  1983年   202篇
  1979年   195篇
  1978年   162篇
  1975年   189篇
  1974年   244篇
  1973年   199篇
  1972年   208篇
  1971年   173篇
  1970年   150篇
  1969年   200篇
  1968年   210篇
  1967年   165篇
  1966年   186篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
Current Psychology - Research has questioned whether it is feasible to assess psychosocial variables through web-based recruitment methods. Previous literature on IBD focused exclusively on testing...  相似文献   
992.

Prenatal smoke exposure (PSE) is a risk factor for adverse outcomes in the offspring, including those affecting psychological development. However, it is uncertain whether these associations are the direct result of PSE or other confounding factors. The aim of this study was to examine the possible relationship between PSE and behavioral development in children at 7.5 years of age, considering several prenatal, neonatal and postnatal covariates. A cohort of 266 mother-child pairs was followed from the first trimester of pregnancy until the children reached 7.5 years of age. PSE was assessed using a questionnaire from prenatal clinical records and corroborated by plasma cotinine determinations in the first and second trimesters and in the cord. Mother-child pairs were classified into one of four groups: unexposed, exposed to passive smoking, first trimester active smoking only and active smoking throughout pregnancy. Child behavior was assessed using the Child Behavior Checklist for ages 6–18 and the Childhood Autism Spectrum Test. In multiple linear regression models, smoking during pregnancy was associated with higher scores in affective problems (β?=?0.298; p?=?0.004). No significant associations were found between smoking during pregnancy and externalizing problems. Findings indicate that PSE is negatively associated with behavioral development in childhood.

  相似文献   
993.
994.
995.
Cognitive Processing - A correction to this paper has been published: https://doi.org/10.1007/s10339-021-01027-4  相似文献   
996.
Gráf  Rózsa  Kalmár  Magda  Harnos  Andrea  Boross  Gábor  Nagy  Anett 《Cognitive processing》2021,22(2):311-319
Cognitive Processing - Prematurity is a serious risk factor for learning difficulties. Within the academic skills reading has the greatest impact on the prospects of the students; therefore,...  相似文献   
997.
Background/ObjectiveThe main aim of this study was to compare coping strategies in obsessive-compulsive disorder (OCD) patients and a healthy control group during COVID-19 lockdown and to analyze the relationship with some variables which may influence results (depression, anxiety, comorbidity, subtype of obsession-compulsion). Method: There were 237 participants, 122 OCD and 115 healthy controls, aged 17-61 years old (M = 33.48, SD = 11.13). Results: Groups showed differences in the use of some adaptive strategies (positive reinterpretation, acceptance, humor) and maladaptive (denial, self-blame). Within obsessive-compulsive group, comorbidity affected the greater use of inappropriate strategies (denial, substance abuse and self-blame) while type of obsession-compulsion did not influence use. Anxiety and depression levels were related to the use of less adaptive strategies. Conclusions: These findings strengthen the need for training in the use of effective and adaptive coping strategies, making it necessary to improve clinical follow-up of these patients. It is relevant to be in contact with healthcare professionals, review medication and observe the anxiety and depression levels.  相似文献   
998.
999.
Behavioral training techniques of direct care staff have helped institutions serving dependent populations to progress from custodial settings to therapeutic environments. Most of the recent literature on staff training has focused on contingency management procedures, especially feedback procedures. Long-term studies of these procedures suggest that individual verbal feedback on the performance of the staff member is the best assurance of maintenance of these procedures.  相似文献   
1000.
The present study examines the perceived causes of date rape by the use of network analysis. The 142 subjects in the study were presented with grids containing 9 causes listed by row and column. They were asked to indicate if they belived there was a causal link between each of the 72 causal pairings. The resulting network placed emphasis on male and female drunkenness, norms of dating, and society's attitude to date rape as distal causes of date rape. Misunderstanding of behavior by men, male attitude that date rape is unimportant, and need by males for dominance were seen as proximal causes. Further networks for each sex were constructed: these showed clear division of opinion on the causes of date rape. © 1995 Wiley-Liss, Inc.  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