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   1107篇
  免费   31篇
教育   942篇
科学研究   28篇
各国文化   16篇
体育   61篇
文化理论   2篇
信息传播   89篇
  2023年   6篇
  2022年   8篇
  2021年   7篇
  2020年   17篇
  2019年   39篇
  2018年   39篇
  2017年   48篇
  2016年   52篇
  2015年   30篇
  2014年   41篇
  2013年   262篇
  2012年   30篇
  2011年   28篇
  2010年   23篇
  2009年   42篇
  2008年   37篇
  2007年   29篇
  2006年   38篇
  2005年   33篇
  2004年   40篇
  2003年   18篇
  2002年   26篇
  2001年   30篇
  2000年   18篇
  1999年   18篇
  1998年   15篇
  1997年   10篇
  1996年   17篇
  1995年   13篇
  1994年   15篇
  1993年   14篇
  1992年   10篇
  1991年   9篇
  1990年   12篇
  1989年   3篇
  1988年   3篇
  1987年   2篇
  1986年   7篇
  1985年   8篇
  1984年   5篇
  1983年   6篇
  1982年   2篇
  1981年   8篇
  1980年   5篇
  1979年   4篇
  1978年   2篇
  1976年   2篇
  1973年   2篇
  1956年   1篇
  1944年   1篇
排序方式: 共有1138条查询结果,搜索用时 15 毫秒
31.
This study examined whether stress levels differ in families of young children with three different genetic etiologies of mental retardation, and whether child characteristics associated with those genetic etiologies may help explain these differences. Participants were sixty families of young children with Down syndrome, Williams syndrome, and Smith-Magenis syndrome. All children were between the ages of 3 and 10 years. Parents completed Achenbach's Child Behavior Checklist, the Questionnaire on Resources and Stress-Friedrich edition, and a demographic questionnaire. Families of children with Down syndrome experienced significantly less Pessimism than the other two etiology groups and significantly less Parent and Family Problems than families of children with Smith-Magenis syndrome. The strongest predictor of Parent and Family Problems was maladaptive behavior in Smith-Magenis syndrome, younger age in Down syndrome, and both maladaptive behavior and younger age in Williams syndrome. Maladaptive behavior predicted Pessimism in families of children with Smith-Magenis syndrome, but none of the variables examined significantly predicted Pessimism in the other two syndromes. The importance of behavioral phenotype research is discussed for practitioners working with young children with mental retardation and their families.  相似文献   
32.
33.
Using data from the National Institute of Child Health and Human Development Early Child Care Research Network (NICHD SECCYD), the authors examined whether interactions between home and child-care quality affect children's social-emotional adjustment at 24, 36, and 54 months (N = 771). Triadic splits on quality of home and child care were used to examine children in specific ecological niches, with a focus on those who experience the double jeopardy of poor quality home and child-care environments. Children in this niche exhibited the highest levels of mother-reported problem behavior and the lowest levels of prosocial behavior. However, there was evidence that children from lower quality home environments were able to benefit from the compensatory influence of high-quality child care. These results suggest policies aimed at the cross-context influences of protective and risky settings.  相似文献   
34.
Using a sample of Supreme Court Justice William O. Douglas' Supreme Court opinons as the data base, this study investigated the question of whether majority or non‐majority status constitutes a variable sufficiently strong to predict the rhetorical quality of the opinion. The three traditional schools of legal philosophy, Natural Law, Legal Positivism, and Legal Realism, provided the basis of three hypothetical rhetorical genres which were found to be present in statistically similar frequencies in all opinion types. These findings (1) call into question the conventional wisdom that majority and dissenting opinions represent different rhetorical sub‐species, and (2) suggest that a more fruitful avenue of analysis looks to the generic architechtonics of Supreme Court opinions rather than to the relatively more superficial dimension of stylistics.  相似文献   
35.
The following study investigates the range of strategies individuals develop to infer and interpret cross-sections of three-dimensional objects. We focus on the identification of mental representations and problem-solving processes made by 11 individuals with the goal of building training applications that integrate the strategies developed by the participants in our study. Our results suggest that although spatial transformation and perspective-taking techniques are useful for visualizing cross-section problems, these visual processes are augmented by analytical thinking. Further, our study shows that participants employ general analytic strategies for extended periods which evolve through practice into a set of progressively more expert strategies. Theoretical implications are discussed and five main findings are recommended for integration into the design of education software that facilitates visual learning and comprehension.  相似文献   
36.
Literature on school reform has emphasized the need for principals to expand beyond their traditionally administrative role and become instructional leaders. This article examines the relationship between the practice of site-based instructional leadership and the professional development that teachers received in the context of a district-wide reform effort in San Diego City Schools. Using data from teacher surveys and school-based interviews, we find a connection between aspects of principal instructional leadership (coherent school-wide vision and leaders' engagement in instructional improvement) and selected research-based characteristics of effective teacher professional development (coherence and focus on content and curriculum). We conclude by addressing some of the tensions and limitations associated with a particular vision for site-based instructional leadership.  相似文献   
37.
We examined the relationship between learned resourcefulness skills and the manner in which undergraduate heterosexual women handle unwanted sexual advances/activity. Participants consisted of 150 females completing a set of questionnaires assessing general learned resourcefulness, sexual giving-in experience, sexual resourcefulness, sexual self-efficacy and reasons for consent. The hypothesis that possessing a higher general repertoire of learned resourcefulness skills would uniquely predict greater sexual self-control with unwanted sexual advances was supported. Physical contact with men, greater sexual victimization, more reasons for consenting, and less use of sexual resourcefulness skills all directly contributed to voluntarily giving-in behavior. Implications for sexuality education and counseling are discussed.  相似文献   
38.
After discussing the distinction between artifacts and natural entities, and the distinction between artifacts and technology, the conditions of the traditional account of moral agency are identified. While computer system behavior meets four of the five conditions, it does not and cannot meet a key condition. Computer systems do not have mental states, and even if they could be construed as having mental states, they do not have intendings to act, which arise from an agent’s freedom. On the other hand, computer systems have intentionality, and because of this, they should not be dismissed from the realm of morality in the same way that natural objects are dismissed. Natural objects behave from necessity; computer systems and other artifacts behave from necessity after they are created and deployed, but, unlike natural objects, they are intentionally created and deployed. Failure to recognize the intentionality of computer systems and their connection to human intentionality and action hides the moral character of computer systems. Computer systems are components in human moral action. When humans act with artifacts, their actions are constituted by the intentionality and efficacy of the artifact which, in turn, has been constituted by the intentionality and efficacy of the artifact designer. All three components – artifact designer, artifact, and artifact user – are at work when there is an action and all three should be the focus of moral evaluation.  相似文献   
39.
40.
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