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   4195篇
  免费   480篇
  国内免费   173篇
  2024年   25篇
  2023年   117篇
  2022年   75篇
  2021年   137篇
  2020年   220篇
  2019年   238篇
  2018年   191篇
  2017年   215篇
  2016年   234篇
  2015年   167篇
  2014年   170篇
  2013年   509篇
  2012年   130篇
  2011年   156篇
  2010年   102篇
  2009年   175篇
  2008年   171篇
  2007年   174篇
  2006年   156篇
  2005年   149篇
  2004年   115篇
  2003年   105篇
  2002年   112篇
  2001年   106篇
  2000年   82篇
  1999年   92篇
  1998年   64篇
  1997年   50篇
  1996年   56篇
  1995年   49篇
  1994年   47篇
  1993年   57篇
  1992年   41篇
  1991年   40篇
  1990年   46篇
  1989年   26篇
  1988年   31篇
  1987年   26篇
  1986年   20篇
  1985年   19篇
  1984年   14篇
  1983年   10篇
  1982年   17篇
  1981年   11篇
  1980年   16篇
  1979年   16篇
  1978年   28篇
  1977年   19篇
  1976年   17篇
  1975年   3篇
排序方式: 共有4848条查询结果,搜索用时 15 毫秒
851.
Brief experimental analyses (BEA) have been used to identify effective individualized interventions for improving reading fluency with school-age children. Interventions involving incentives, modeling, repeated reading, and error correction are most often tested in a BEA. However, these interventions are rarely modified according to individual student needs. The current study examined the effects of varied levels of modeling (passage, sentence, word) and varied contingencies (tracking and fluency) on fluency in non-treated high-word overlap passages and general outcome measure passages. BEA-identified interventions were effective for improving reading fluency on non-treated passages for both second grade students and the third grade student. Notably, the effects reversed when intervention was withdrawn with one of the second grade students. Results are discussed in terms of considerations in the application of BEA technology in the schools.  相似文献   
852.
The study provides an in-depth analysis of two young adult subjects from a longitudinal study who underwent successive and significant developmental changes. Their developmental patterns, however, are only revealed by a new conception of moral stages, which is both more comprehensive and more detailed than Kohlberg’s original approach. In particular, the suggested alternative taxonomy neatly accommodates what appears as developmental anomalies in the Kohlbergian frame of reference. What is more, apart from merely matching with the observed data, the new theory also explains why the subjects developed the way they did, since it reveals the inherent cognitive conflicts at each stage and how these are resolved at the following one. Although the theory stands against the Kohlberg theory as it is, it may be understood as an extension and further development of the latter, in the sense that Kohlbergian stages are differentiated, supplemented, and theoretically substantiated within the new framework.
Gerhard MinnameierEmail:
  相似文献   
853.
Jaccard has been the choice similarity metric in ecology and forensic psychology for comparison of sites or offences, by species or behaviour. This paper applies a more powerful hierarchical measure—taxonomic similarity (Δs), recently developed in marine ecology—to the task of behaviourally linking serial crime. Forensic case linkage attempts to identify behaviourally similar offences committed by the same unknown perpetrator (called linked offences). Δs considers progressively higher‐level taxa, such that two sites show some similarity even without shared species. We apply this index by analysing 55 specific offence behaviours classified hierarchically. The behaviours are taken from 16 sexual offences by seven juveniles where each offender committed two or more offences. We demonstrate that both Jaccard and Δs show linked offences to be significantly more similar than unlinked offences. With up to 20% of the specific behaviours removed in simulations, Δs is equally or more effective at distinguishing linked offences than where Jaccard uses a full data set. Moreover, Δs retains significant difference between linked and unlinked pairs, with up to 50% of the specific behaviours removed. As police decision‐making often depends upon incomplete data, Δs has clear advantages and its application may extend to other crime types. Copyright © 2007 John Wiley & Sons, Ltd.  相似文献   
854.
中学生思维风格结构及其测量   总被引:4,自引:1,他引:3  
赵俊华  张大均 《心理科学》2007,30(1):142-144
本研究在文献分析和开放调查的基础上,构建了中学生思维风格的理论结构,并据此编制了中学生思维风格量表。对测量结果进行探索性和验证性因素分析表明:思维风格是一个单一维度的整体-分析型结构,它包括两个呈两极连续性的整体和分析因素,可以用来说明复杂多样的具体思维风格类型。  相似文献   
855.
The reason for the emergence of consciousness of filial piety is that parental care could activate reciprocal filial piety. Parental care and filial piety are two supplementary phenomena caused by the same time consciousness. Phenomenology neglects consciousness of filial piety because it lacks the thinking that sees the fundamental “meaning of time” in the intersection of “past” and “future”. The consciousness of filial piety can only be really constituted by a human being’s personal experience. “Frustrations in personal life” and “breeding of children for oneself” are two occasions for an adult to fight against the separating effect of individualized consciousness and regain awareness of filial piety. Translated by Huang Deyuan from Beijing Daxue Xuebao 北京大学学报 (Journal of Peking University), 2006, (1): 14–24  相似文献   
856.
The indispensability argument for abstract mathematical entities has been an important issue in the philosophy of mathematics. The argument relies on several assumptions. Some objections have been made against these assumptions, but there are several serious defects in these objections. Ameliorating these defects leads to a new anti-realistic philosophy of mathematics, mainly: first, in mathematical applications, what really exist and can be used as tools are not abstract mathematical entities, but our inner representations that we create in imagining abstract mathematical entities; second, the thoughts that we create in imagining infinite mathematical entities are bounded by external conditions. __________ Translated from Zhexue Yanjiu 哲学研究 (Philosophical Researches), 2006, (8): 74–83  相似文献   
857.
语言学界对隐喻的研究集中于从概念层面对隐喻进行认知分析,而淡化了对语言表达层面隐喻的典型特征做形式化的概括。然而,概念层面的隐喻却必须通过语言形式层面的隐喻表达来加以体现,隐喻的语言形式对隐喻的理解也具有极其重要的意义。特别是,当隐喻作为一种思维现象被纳入机器理解的研究范畴之后,隐喻的计算机制研究也开始要求高度地形式化隐喻的语言表达。鉴于此,本文面向隐喻机器理解,采用语料统计分析的方法,从大量实际隐喻语料出发,总结汉语隐喻的语言形式的复杂性特征:语言隐喻主要成分取值的不确定性、语言隐喻各成分出现与否的不确定性、隐喻嵌套和递进复用现象的普遍性,进而指出面向计算的隐喻研究困境以及出路。  相似文献   
858.
Cody Gilmore 《Philosophia》2007,35(2):219-231
What is it for a thing to be dead? Fred Feldman holds, correctly in my view, that a definition of ‘dead’ should leave open both (1) the possibility of things that go directly from being dead to being alive, and (2) the possibility of things that go directly from being alive to being neither alive nor dead, but merely in suspended animation. But if this is right, then surely such a definition should also leave open the possibility of things that go directly from being dead to being neither alive nor dead, but merely in suspended animation. I show that Feldman’s own definition of ‘dead’ (in terms of ‘lives’ and ‘dies’) does not leave this possibility open. I propose a new definition that does.  相似文献   
859.
Research has found that neighborhood structural characteristics can influence residents' mental health. Few studies, however, have explored the proximal reasons behind such influences. This study investigates how different types of communities, in terms of environmental stressors (social and physical disorder and fear of crime) and social resources (informal ties and formal organizational participation), affect well-being, depression, and anxiety in adult residents. Data are from a survey of 412 residents nested in 50 street blocks. Block stressors and resources were cluster analyzed to identify six block types. After controlling for several individual- and block-level characteristics, results from multilevel models suggest that in communities facing relatively few stressors, higher levels of formal participation are associated with better mental health. Because high levels of formal participation were not found in communities with higher levels of stressors, the impact of participation in such contexts could not be examined. However, results suggest that in communities where stressors are more common, isolation from neighbors may have a protective effect on mental health.  相似文献   
860.
Goldberg [Goldberg, L. R.(in press) Doing it all Bass-Ackwards: The development of hierarchical factor structures from the top down. Journal of Research in Personality] has recently described a novel method for computing hierarchical component structures via a “top down” design. He calls his method the “Bass Ackwards” approach to distinguish it from more common “bottom up” methods for obtaining hierarchical solutions. Using simple matrix equations, in this commentary I demonstrate that the end result of a Bass Ackwards analysis—that is, the correlations between component scores from different levels of a hierarchy—can be calculated without calculating the actual component scores. By avoiding component-score calculation, Goldberg’s method (a) can be applied to any data set in which a correlation matrix is available, and (b) can be applied to factor scores rather than estimated factor scores. Goldberg suggests that the Bass Ackwards method represents a useful tool for elucidating the underlying dimensionality and latent structure (rotation in hyperspace) of a data set. Computer code is reported in the Appendix A of this article to help personality researchers more fully evaluate this claim in empirical and simulated data.  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