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   38678篇
  免费   833篇
  国内免费   4篇
  39515篇
  2020年   238篇
  2019年   286篇
  2018年   3766篇
  2017年   3122篇
  2016年   2612篇
  2015年   516篇
  2014年   466篇
  2013年   1758篇
  2012年   1177篇
  2011年   2966篇
  2010年   2869篇
  2009年   1820篇
  2008年   2240篇
  2007年   2629篇
  2006年   547篇
  2005年   661篇
  2004年   609篇
  2003年   514篇
  2002年   533篇
  2001年   543篇
  2000年   534篇
  1999年   405篇
  1998年   257篇
  1997年   217篇
  1996年   211篇
  1995年   221篇
  1994年   189篇
  1993年   187篇
  1992年   314篇
  1991年   313篇
  1990年   294篇
  1989年   283篇
  1988年   268篇
  1987年   247篇
  1986年   238篇
  1985年   254篇
  1984年   259篇
  1983年   233篇
  1982年   226篇
  1981年   229篇
  1980年   189篇
  1979年   269篇
  1978年   217篇
  1977年   207篇
  1976年   193篇
  1975年   237篇
  1974年   261篇
  1973年   244篇
  1972年   214篇
  1968年   222篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
981.
Research on Child and Adolescent Psychopathology - There are few studies on the predictors of long-term course of major depressive disorder (MDD) with an onset in childhood and adolescence. Studies...  相似文献   
982.
Journal of Religion and Health - Theophrastus Bombastus Von Hohenheim (1493–1541), known as Paracelsus, was a German-Swiss Renaissance man. His interests included alchemy and medicine. During...  相似文献   
983.
This paper begins with a memoir of the author’s interactions with Joseph Margolis that delineates both Margolis’s importance as a teacher and their disagreements on aspects of American philosophy. It then turns to Margolis’s discussions of pragmatism as a philosophical movement, with an emphasis on his understanding of John Dewey. The paper considers, third, Margolis’s account of the decline and rebirth of pragmatism, the latter process attributed largely to the work of Richard Rorty. The paper concludes with an examination of what it sees as Margolis’s most valuable work: his explorations of the nature of the self and of human society.  相似文献   
984.
Glombíček  Petr  Hill  James 《Philosophia》2021,49(2):651-665
Philosophia - It is argued that George Berkeley’s term ‘common sense’ does not indicate shared conviction, but the shared capacity of reasonable judgement, and is therefore to be...  相似文献   
985.
Frigg  Roman  Nguyen  James 《Synthese》2021,198(3):2427-2447
Synthese - Veritism, the position that truth is necessary for epistemic acceptability, seems to be in tension with the observation that much of our best science is not, strictly speaking, true when...  相似文献   
986.
987.
988.
While recent research has started to pay more attention to the role of contact strategies on promoting intergroup harmony between Turkish and Kurdish communities, the effectiveness of a novel form of indirect contact strategy, E-contact—where participants engage in a cooperative and structured online interaction with an individual from the outgroup—has not yet been tested. Across two studies (NStudy 1 = 110, NStudy 2 = 176), we investigated the effects of E-contact among Turks on promoting positive attitudes and behavioral tendencies toward Kurds, testing outgroup trust and intergroup anxiety as mediators and incorporating a distinction between lower and higher self-disclosure conditions. As expected, E-contact led to more positive outgroup attitudes, as well as greater approach tendencies and decreased avoidance tendencies through increased outgroup trust (Studies 1 and 2) and reduced intergroup anxiety (Study 2). Study 2 also found that E-contact produced lower perceived interethnic conflict through increased outgroup trust. While both lower and higher personal disclosure conditions provided similar effects in the two studies, E-contact with heightened self-disclosure was especially effective at promoting more positive outgroup attitudes and reducing avoidance tendencies. Findings highlight potential benefits of using E-contact as a prejudice-reduction strategy in conflict settings.  相似文献   
989.

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   
990.
United Nations and World Health Organization data show a positive correlation, r = .53, p < .0001, N = 189, between COVID‐19 infection rates and the human development index (HDI). Less wealthy, less educated countries with lower life spans were also more successful in maintaining lower fatality rates, r = .46, p < .0001, N = 189 whereas 9 of the top‐10 countries in the world in per capita fatalities due to COVID‐19 were Western societies high in HDI. Similar positive correlations were found between COVID‐19 infection and fatality rates and a smaller sample of 76 countries measured on Schwartz intellectual autonomy (or individualism), and negative correlations of similar magnitude were found for embeddedness (or collectivism). East Asia was a global leader in preventing the spread of COVID‐19 because of a vigilant public concerned for public safety and compliant with public safety measures. African Union leaders coordinated their responses, and bought into a continent‐wide African Medical Supplies Platform that prevented panicked competition for scare supplies. Western global media and scholars have not paid attention to the successes of East Asia, Africa, and the South Pacific in fighting the pandemic. It is worth asking why this should be the case; understand the weaknesses of extreme individualism in fighting a pandemic requiring coordinated and unified public response, and consider the lessons for global scholars from the pandemic for doing research in the future.  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