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111.
Rule-based schema matching for ontology-based mediators   总被引:1,自引:0,他引:1  
Mediating heterogeneous data sources heavily relies on explicit domain knowledge expressed, for example, as ontologies and mapping rules. We discuss the use of logic representations for mapping schema elements onto concepts expressed in a simplified ontology for cultural assets. Starting with a logic representation of the ontology, criteria for a rule-based schema matching are exemplified. Special requirements are the handling of uncertain information and the processing of hierarchical XML structures representing instances.  相似文献   
112.
人造物概念的表征:功能、意图和目的论的解释   总被引:2,自引:0,他引:2  
以概念结构研究从“相似”到“解释”的理论转向为背景,评述人造物领域的“意图-历史论”(Bloom, 1996),提出人造物概念结构中自上而下的约束是来自“使用目的”而不是“设计意图”。分析近期报告的大量实验,最后提出人造物概念表征的“基于使用的目的论”的解释模式和人造物归类的双重目标模型。  相似文献   
113.
114.
时-空整合影响图形识别的眼动研究   总被引:3,自引:1,他引:2  
采用眼动追踪的方法对在不同方向(上、下、左与右)及距离(2.0°‘和4.0°视角)上先后出现的特征组合不同的图形识别过程进行了研究。结果表明。首先,对由不同颜色和形状构成的图形的识别受到图形特征组合的影响,视觉系统对颜色和形状的加工存在明显差异,与颜色加工相比,视觉系统需要更多的时间才能完成形状识别。此外,虽然图形识别的速度和准确性受运动方向与距离的影响较小,但在不同运动方向和距离上,视觉系统是通过改变眼动的时间和空间特性来完成识别任务的,视觉系统在识别过程中的这种时间与空间的整合特点还有待于进一步研究。  相似文献   
115.
This article presents an integrative framework for psychopathology and psychotherapy. The framework differs in kind from previous ones in that it is entirely pre-empirical (specifically, conceptual and logical) in character and does not represent an attempt to create a new empirical theory (cf. Newton's pre-empirical creation of a new conceptual system, which creation proved a necessary precondition for his subsequent empirical contentions). The present integration is accomplished in three parts. In the first of these, a definition of pathology as behavioral disability or functional impairment is presented and defended. In the second, this definition is used as a centerpiece to achieve a logical unification of many prominent explanations of psychopathology that are at present widely considered to be theoretically divergent and incompatible. In part three, established forms of intervention from our most influential schools of psychotherapy are shown to be both conceptually coherent and compatible in practice within the present overarching framework.  相似文献   
116.
捆绑问题是当前脑科学研究中的主要问题之一,近来已成为意识争论的焦点。该文结合国外对捆绑问题研究的最新成果,在概括介绍关于捆绑机制的主要理论的基础上,综述了捆绑问题与主要认知功能关系的研究,并指出不同认知过程中捆绑脑机制的精细化研究和一般性捆绑脑机制的系统化研究可能是今后这方面研究的重点。  相似文献   
117.
Many kinds of creativity result from combination of mental representations. This paper provides a computational account of how creative thinking can arise from combining neural patterns into ones that are potentially novel and useful. We defend the hypothesis that such combinations arise from mechanisms that bind together neural activity by a process of convolution, a mathematical operation that interweaves structures. We describe computer simulations that show the feasibility of using convolution to produce emergent patterns of neural activity that can support cognitive and emotional processes underlying human creativity.  相似文献   
118.
In a series of four experiments, we examine the hypothesis that selective attention is crucial for the generation of conscious knowledge of contingency information. We investigated this question using a spatial priming task in which participants were required to localize a target letter in a probe display. In Experiment 1, participants kept track of the frequency with which the predictive letter in the prime appeared in various locations. This manipulation had a negligible impact on contingency awareness. Subsequent experiments requiring participants to attend to features (color, location) of the predictive letter increased contingency awareness somewhat, but there remained a large proportion of individuals who remained unaware of the strong contingency. Together the results of our experiments suggest that the construct of attention does not fully capture the processes that lead to contingency awareness, and suggest a critical role for bottom-up feature integration in explicit contingency learning.  相似文献   
119.
Bicultural individuals vary in the degree to which their two cultural identities are integrated – Bicultural Identity Integration (BII). Among Asian‐Americans, for example, some experience their Asian and American sides as integrated (high BII) whereas others experience the two as divided (low BII). Past research on social judgement found that individual differences in BII affect the way biculturals respond to cultural cues or norms in their situation. Asian‐Americans with low BII tend to contrast to the cultural norm (e.g. they exhibit typically American judgements when in Asian cultural situations) rather than assimilate to them, a response observed more among high BII individuals (e.g., they exhibit typically Asian judgements when in Asian cultural situations). Research has interpreted the contrastive response as reflecting implicit identity motives, yet past studies used measures that make cultural differences salient. Conscious awareness of the experimental hypothesis could elicit contrastive responses. The present research assessed forecasts of others' behaviour in which cultural group differences are less obvious: Asians, compared to Westerners, forecast more positive behaviours from others. In three experiments with Asian‐Americans, we found the contrastive response by low BII individuals persisted. They made more positive forecasts after exposure to American versus Asian cultural cues. This suggests that the moderating role of BII on responses to cultural cues is not a matter of demand characteristics or limited to stereotypical cultural differences. Implications for bicultural identity, implicit processes, and organizational behaviour are discussed.  相似文献   
120.

Objectives

Given instances of less than optimal internal consistency levels of the Perceived Locus of Causality (PLOC) scale when applied to school-based physical education (PE), the aim of the study was to examine the psychometrics of a revised PLOC instrument for use in PE.

Design

A cross-sectional study in which self-report data on behavioral regulations, perceived autonomy support by the PE teacher, and subjective vitality were collected from 1729 students in relation to their PE participation at the elementary school (5th and 6th grade), middle school, and high school levels, including boys and girls.

Results

The revised instrument (PLOC-R) demonstrated satisfactory levels of internal consistency; a sound factor structure; evidence in support of a simplex-like structure; configural, metric, strong, and strict measurement invariance across boys and girls, students who participate or not in out-of-school sport activities, and across the three school grade levels; and nomological validity.

Conclusions

Initial evidence has emerged in favor of the PLOC-R as a scale appropriate for use with 5th and 6th grade elementary, middle school, and high school students to measure the degree of self-determined motivation for participation in compulsory school-based physical education classes.  相似文献   
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