全文获取类型
收费全文 | 5360篇 |
免费 | 430篇 |
国内免费 | 284篇 |
出版年
2024年 | 12篇 |
2023年 | 75篇 |
2022年 | 84篇 |
2021年 | 161篇 |
2020年 | 248篇 |
2019年 | 245篇 |
2018年 | 243篇 |
2017年 | 295篇 |
2016年 | 288篇 |
2015年 | 244篇 |
2014年 | 291篇 |
2013年 | 826篇 |
2012年 | 144篇 |
2011年 | 298篇 |
2010年 | 182篇 |
2009年 | 316篇 |
2008年 | 306篇 |
2007年 | 327篇 |
2006年 | 201篇 |
2005年 | 170篇 |
2004年 | 156篇 |
2003年 | 135篇 |
2002年 | 99篇 |
2001年 | 77篇 |
2000年 | 78篇 |
1999年 | 51篇 |
1998年 | 45篇 |
1997年 | 37篇 |
1996年 | 25篇 |
1995年 | 38篇 |
1994年 | 28篇 |
1992年 | 12篇 |
1991年 | 13篇 |
1990年 | 10篇 |
1989年 | 14篇 |
1988年 | 10篇 |
1987年 | 11篇 |
1985年 | 21篇 |
1984年 | 30篇 |
1983年 | 19篇 |
1982年 | 36篇 |
1981年 | 21篇 |
1980年 | 18篇 |
1979年 | 25篇 |
1978年 | 17篇 |
1977年 | 13篇 |
1976年 | 13篇 |
1975年 | 23篇 |
1974年 | 13篇 |
1973年 | 12篇 |
排序方式: 共有6074条查询结果,搜索用时 31 毫秒
201.
In a previous study, Kuroshima and colleagues demonstrated that capuchin monkeys (Cebus apella) learned to discriminate between a "knower" who inspected a box for food, and a "guesser" who did not. The aim of the present study was to specify whether the subjects learned a simple conditional discrimination or a causal relationship that seeing leads to knowing. In experiment 1, we introduced five types of novel containers to two subjects. Each container was of different shape and color. The subjects gradually learned to reach toward the container the knower suggested. In experiment 2, we diversified the behavior of the knower and the guesser. In experiment 3, in order to eliminate the possibility of discrimination based on differences in the magnitude and the complexity of two trainers, we equated their behaviors. One subject adapted to the novel behaviors of the knower and the guesser, successfully discriminating the two trainers. Thus this monkey clearly learned to use the inspecting action of the knower and the non-inspecting action of the guesser as a discriminative cue to recognize the baited container. This result suggests that one capuchin monkey learned to recognize the relationship between seeing and knowing. 相似文献
202.
203.
Social intelligence is a construct that not only appeals to laymen as a relevant individual difference but also has shown promising practical applications. Nevertheless, the use of social intelligence in research and applied settings has been limited by definitional problems, difficulties in empirically differentiating social intelligence from related constructs, and the complexity of most existing measures of social intelligence. The goal of the present research was to address some of these obstacles by designing a multi‐faceted social intelligence measure that is short and easy to administer. Three studies were conducted to develop and validate the Tromsø Social Intelligence Scale (TSIS). Study 1 examined professional psychologists’ interpretations of social intelligence to derive a consensually agreed‐upon definition of the construct. In Study 2, a large pool of social intelligence items were tested, and a 3‐factor, 21‐item scale was identified. In Study 3, the stability of this measure was confirmed. 相似文献
204.
Japanese exhibits two different types of morphological processes. Some morphologically complex predicates are generated within the domain of the lexicon, whereas others are generated outside the domain of the lexicon. An elicited production task involving both types of complex predicates was administered to six Japanese children with specific language impairment (JSLI) and six children with normal language development (JNLD). The JSLI children experienced significant difficulty forming the lexicon-external complex predicates but much less difficulty with the lexicon-internal complex predicates while the performance of the JNLD children exhibited no such asymmetry. These preliminary results suggest that the deficit of SLI affects the ability to construct implicit procedural rules for morphology that are generated outside the lexicon while their lexical operations for morphology that are generated within the domain of the lexicon remain relatively unimpaired. 相似文献
205.
Tsimpli IM 《Brain and language》2001,77(3):432-448
This paper includes (i) a comparison of the developmental pattern of certain morphosyntactic features in normally developing (ND) Greek children with similar data from a group of children with specific language impairment and (ii) a new analysis of the differences found. The analysis is based on a minimalist notion of LF interpretability. Depending on the feature-specification of lexical items (i.e., [+/- interpretable] at LF), a different route of development follows. In addition, phonological salience of both interpretable and noninterpretable features is argued to play an important role in an account of crosslinguistic differences in both normal and exceptional development. 相似文献
206.
American and Israeli university students completed questionnaires in their native languages assessing ingroup identification, social dominance orientation (SDO), and ingroup and outgroup affect. The interrelationships among the variables were examined for high- and low-status groups in three intergroup contexts: whites and Latinos in the United States, Ashkenazim and Mizrachim in Israel, and Jews and Arabs in Israel. Theoretical predictions of social identity theory and social dominance theory were tested. Results indicated that for all high- and low-status groups, stronger ingroup identification was associated with more positive ingroup affect, and for nearly all groups, higher SDO was associated with more negative affect toward the low-status group. In addition, SDO was positively associated with ingroup identification for all high-status groups, and negatively associated with ingroup identification for almost all low-status groups. Explanations for cross-cultural differences in the factors driving group affect are suggested, and theoretical refinements are proposed that accommodate them. 相似文献
207.
Sjoerd L. Bonting 《Zygon》1999,34(2):323-332
Comparison of the concepts of creation from chaos and creation out of nothing ( creatio ex nihilo ) leads me to reject the latter for several reasons: it is not the biblical concept, and it presents serious conceptual, scientific, and theological problems. Chaos theology is outlined under the headings creation from chaos; chaos and contingency; chaos, evil, and creativity; chaos and incarnation; chaos and eschatology. It is shown to be well suited for the science-theology dialogue by some examples of its application to aspects of cosmic and biological evolution: initial mystery, separation and ordering; chaos and entropy; contingency and fine-tuning of the universe; purpose and progressiveness in evolution; and complexity theory and chaos events. 相似文献
208.
209.
210.
兴奋性氨基酸(EAAs) 广泛分布于中枢神经系统,参与多种生理过程包括学习、记忆和伤害感受等。然而,EAAs 受体的过度兴奋却可引发一系列细胞事件,最终导致神经元的损伤与死亡。许多神经退行性疾病如早老性痴呆、癫痫和肌侧索硬化症等都与EAAs 的兴奋毒作用有关。目前的研究表明,由EAAs 受体过度兴奋所引发的细胞内钙超载是导致神经元死亡的最终途径 相似文献