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   2805篇
  免费   156篇
  2023年   19篇
  2022年   13篇
  2021年   37篇
  2020年   73篇
  2019年   73篇
  2018年   94篇
  2017年   85篇
  2016年   99篇
  2015年   79篇
  2014年   84篇
  2013年   304篇
  2012年   152篇
  2011年   138篇
  2010年   86篇
  2009年   67篇
  2008年   126篇
  2007年   156篇
  2006年   119篇
  2005年   108篇
  2004年   102篇
  2003年   100篇
  2002年   88篇
  2001年   38篇
  2000年   41篇
  1999年   39篇
  1998年   34篇
  1997年   33篇
  1996年   32篇
  1995年   33篇
  1994年   33篇
  1993年   33篇
  1992年   31篇
  1991年   25篇
  1990年   26篇
  1989年   25篇
  1988年   22篇
  1987年   21篇
  1986年   24篇
  1985年   20篇
  1984年   18篇
  1983年   19篇
  1982年   34篇
  1981年   24篇
  1980年   15篇
  1979年   21篇
  1978年   16篇
  1977年   14篇
  1976年   19篇
  1975年   12篇
  1974年   18篇
排序方式: 共有2961条查询结果,搜索用时 15 毫秒
961.
‘The problem with simulations is that they are doomed to succeed.’ So runs a common criticism of simulations—that they can be used to ‘prove’ anything and are thus of little or no scientific value. While this particular objection represents a minority view, especially among those who work with simulations in a scientific context, it raises a difficult question: what standards should we use to differentiate a simulation that fails from one that succeeds? In this paper we build on a structural analysis of simulation developed in previous work to provide an evaluative account of the variety of ways in which simulations do fail. We expand the structural analysis in terms of the relationship between a simulation and its real-world target emphasizing the important role of aspects intended to correspond and also those specifically intended not to correspond to reality. The result is an outline both of the ways in which simulations can fail and the scientific importance of those various forms of failure.  相似文献   
962.
963.
964.
Brian K. Smith 《Religion》2013,43(4):365-372
Gerald James Larson, India's Agony Over Religion. Albany, New York, SUNY Press 1995. ISBN 0-7914-2411-11 (cl), 0-7914-2412-X (pa). Peter van der Veer, Religious Nationalism: Hindus and Muslims in India. Berkeley and Los Angeles, University of California Press, 1994. ISBN 0-520-08220-6 (cl), 0-520-08256-7 (pa).  相似文献   
965.
Leaders in struggles for social justice agree on the importance and the difficulty of maintaining hopefulness while developing critical awareness of social issues. Research has indicated that the analogous components of psychological empowerment (emotional and cognitive) often do not co-vary across populations. This study used a person-centered analytic approach, latent class analysis, to identify subpopulations of participants (n = 1,322) according to the cognitive and emotional components of psychological empowerment. Four distinct sub-groups emerged: those who were relatively (1) critical but alienated, (2) uncritical but hopeful, (3) uncritical and alienated, or (4) critical and hopeful. These clusters were then examined for demographic differences and relationships with a set of conceptually relevant variables including social capital, psychological sense of community, openness, organizational participation and mental wellbeing. Results shed light on the complexity of empowerment processes and yield implications for ongoing community research and action.  相似文献   
966.
Previous studies of the association between multiple parental relationship transitions (i.e., when a parent begins or terminates an intimate relationship involving cohabitation) and offspring antisocial behavior have varied in their efforts to rule out confounding influences, such as parental antisocial behavior and low income. They also have been limited in the representativeness of their samples. Thus, it remains unclear to what degree parents’ multiple relationship transitions have independent effects on children’s antisocial behavior. Analyses were conducted using data on 8,652 6–9-year-old, 6,911 10–13-year-old, and 6,495 14–17-year-old offspring of a nationally representative sample of U.S. women. Cousin-comparisons were used in combination with statistical covariates to evaluate the associations between maternal relationship transitions and offspring antisocial behavior in childhood and adolescence. Cousin-comparisons suggested that associations between maternal relationship transitions and antisocial behavior in childhood and early adolescence are largely explained by confounding factors. In contrast, the associations between maternal relationship transitions and offspring delinquency in late adolescence were robust to measured and unmeasured confounds. The present findings suggest that interventions aimed at reducing exposure to parental relationship transitions or addressing the psychosocial consequences of exposure to parental relationship transitions could reduce risk for offspring delinquency in late adolescence.  相似文献   
967.
Teenage girls in age-discordant relationships remain of concern for healthy development and well-being. We examine whether factors from several sociological frameworks—self-esteem, deviance, social ecology, family cohesion, and religious involvement—predict entry into such relationships. With longitudinal data on 1,537 adolescent girls, we use structural equation modeling to assess risk and protective factors by age group. Results indicate that few social factors predict entry to such relationships; only religious involvement for the youngest adolescents and self-esteem for middle adolescents predict entry. While adolescent girls who date older males are largely like their peers, any impact of social factors may vary by the developmental stage that adolescent girls occupy.  相似文献   
968.
This study provides information about four adolescent students participating in an occupation-based self-determination program drawn from the Model of Self-Determination and the Model of Human Occupation. Students were selected from a Career Lab based on their ability to participate. The analysis of the cases demonstrate that psycho-educational strategies incorporated into a special education curriculum can instill in the students the knowledge, attitudes, and behaviors necessary for personal goal setting and attainment.  相似文献   
969.
970.
Abstract

Transhumanists have asserted that religious people would both oppose life extension and allowing people with extended lives to die. In this paper, coming from a Roman Catholic perspective, I refute four myths associated with these claims: that the Church materially opposes life extension, that it conceptually opposes the very idea of life extension, that it opposes human genetic manipulation, and that it opposes letting people die in hospitals. I then propose that there are four real tensions that are much more significant: that material immortality is highly improbable, that injustice and inequality are major concerns, that transhuman omnipotence is impossible, and that utopianism is extremely dangerous.  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