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21.
Einstein claimed that we do not know what it means to say that events distant from one another are simultaneous, because there is no way to determine this operationally. Reichenbach and Grunbaum claimed that determinate time relations just do not exist among events not connectible by a causal signal and that, therefore, such relations can, within certain limits, be stipulated by convention. But I argue that the independent existence of such relations is demonstrated by asking and answering a series of questions based on the intelligibility, though not the existence, of faster-than-light signals. I further argue that (1) only by demonstrating the unintelligibility of such questions and their answers can the conventionality thesis be maintained; (2) none of the available arguments to show such unintelligibility works; and (3) the conventionality thesis is therefore false.  相似文献   
22.
This essay attempts to solve the so-called paradox of analysis: if one is to have any questions about x , one must know x ; but if one knows x , one has no questions about x . The obvious solution is this: one can inquire into x if one knows some, but not all, of x 's parts. But this solution is erroneous. Let x ' be those parts of x with which one is acquainted, and let S be the percipient in question. As with x , either S knows x ', in which case he has no questions about it; or S does not know x ', in which case he has no questions about it.
My solution is this. Perception and cognition give us, not the thing-in-itself, but a certain analogue of the thing-in-itself. To inquire into x , it is necessary to know not x , but only some analogue of x ; and to learn more about x is to become acquainted with increasingly precise analogues of x .  相似文献   
23.
Parental and peer influences on adolescent substance use have been well demonstrated. However, limited research has examined how parental and peer influences vary across school contexts. This study used a multilevel approach to examine the effects of school substance use norms and school racial composition in predicting adolescent substance use (a composite measure of alcohol, tobacco, and marijuana use) and in moderating parental and peer influences on adolescent substance use. A total of 14,346 adolescents from 34 schools in a mid‐western county completed surveys electronically at school. Analyses were conducted using hierarchical linear modeling. Results indicated that school‐level disapproval against substance use and percentage of minority students at school were negatively associated with adolescent substance use. School‐level disapproval moderated the association between peer substance use and adolescent substance use, with the association being stronger when school‐level disapproval was lower. School racial composition moderated the influence of parental disapproval and peer substance use on adolescent substance use. Specifically, both the association between parental disapproval and adolescent substance use and the association between peer substance use and adolescent substance use were weaker for adolescents who attended schools with higher percentages of minority students. Findings highlighted the importance of considering the role of school contexts, in conjunction with parental and peer influences, in understanding adolescent substance use.  相似文献   
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25.
A large body of cognitive research has shown that people intuitively and effortlessly reason about the biological world in complex and systematic ways. We addressed two questions about the nature of intuitive biological reasoning: How does intuitive biological thinking change during adolescence and early adulthood? How does increasing biology education influence intuitive biological thinking? To do so, we developed a battery of measures to systematically test three components of intuitive biological thought: anthropocentric thinking, teleological thinking and essentialist thinking, and tested 8th graders and university students (both biology majors, and non-biology majors). Results reveal clear evidence of persistent intuitive reasoning among all populations studied, consistent but surprisingly small differences between 8th graders and college students on measures of intuitive biological thought, and consistent but again surprisingly small influence of increasing biology education on intuitive biological reasoning. Results speak to the persistence of intuitive reasoning, the importance of taking intuitive knowledge into account in science classrooms, and the necessity of interdisciplinary research to advance biology education. Further studies are necessary to investigate how cultural context and continued acquisition of expertise impact intuitive biology thinking.  相似文献   
26.
The aim of this study was to examine the associations among mentoring relationship quality (i.e., relational and instrumental quality), racial discrimination and coping efficacy with racial discrimination. Three social support models were tested, including the stress buffering, support mobilization, and support deterioration models. Participants were 257 urban, low‐income Latina/o high school students, who completed surveys in both 9th and 10th grades. While controlling for gender and coping efficacy with discrimination in 9th grade, results supported the social support deterioration model. Specifically, there was a significant indirect effect of racial discrimination in 9th grade on coping efficacy in 10th grade through instrumental mentoring quality. As racial discrimination increased, mentoring quality decreased and then coping efficacy decreased. We also found that more racial discrimination in 9th grade was significantly associated with lower coping efficacy in 10th grade, and higher instrumental mentoring quality in 9th grade was significantly associated with higher coping efficacy in 10th grade, while controlling for gender and coping efficacy in 9th grade. Implications and recommendations for future research are discussed.  相似文献   
27.
Following a Social Representations approach, the article examines the representations of citizenship held by both migrants and Greek citizens in Greece after the announcement of a heavily debated citizenship legislation. Essentialism, a way of representing social categories as holding an underlying essence that determines their characteristics, was used as an analytical tool to understand the inclusive or exclusive function of representations of citizenship towards migrants. Findings showed that Greeks construct representations based on ethnic, civic, and cultural ideas, while migrants construct representation of citizenship based on civic and cultural ideas. Essentialism was a way of constructing ethnic and cultural representations of citizenship and functioned in both exclusive and inclusive ways, but assimilatory terms accordingly. Civic and cultural representations of citizenship were constructed in nonessentialist ways and functioned in inclusive ways. However, from Greeks' perspective, civic inclusion was conditioned upon an often‐questioned legality of migrants and upon cultural assimilation terms. Studying both the content and the essentialist/nonessentialist formulation of representations of citizenship is an important tool in understanding the politics of inclusion and exclusion of citizens in the social arena.  相似文献   
28.
The present research investigated the extent to which the stereotype that young Black men are threatening and dangerous has become so robust and ingrained in the collective American unconscious that Black men now capture attention, much like evolved threats such as spiders and snakes. Specifically, using a dot-probe detection paradigm, White participants revealed biased attention toward Black faces relative to White faces (Study 1). Because the faces were presented only briefly (30-ms), the bias is thought to reflect the early engagement of attention. The attentional bias was eliminated, however, when the faces displayed averted eye-gaze (Study 2). That is, when the threat communicated by the Black faces was attenuated by a relevant, competing socio-emotional cue—in this case, averted eye-gaze—they no longer captured perceivers’ attention. Broader implications for social cognition, as well as public policies that reify these prevailing perceptions of young Black men are discussed.  相似文献   
29.
民族冲突是影响社会和谐与稳定的重大现实问题, 其社会心理机制是尚未解决的重要科学问题。本项目拟以我国西部地区藏族为例, 纳入社会威胁情境因素, 并整合社会认同理论和社会类别的心理本质论框架下的群际冲突研究。其基本理论命题是:民族冲突形成并不是单一因素所致, 而是基于个体层面、群体层面和社会情境层面的多水平变量相互作用的结果。本项目拟通过既相对独立又彼此关联的三个实证研究, 旨在考察少数民族关于“民族”的心理本质论对民族冲突的预测和影响作用, 探索民族身份延伸和社会威胁情境在其中的影响作用, 从而揭示民族冲突形成的社会心理机制, 旨在为构建民族冲突的预警机制模型奠定基础, 为跨越民族界限、实现多民族和谐共处和完善民族政策提供科学依据。  相似文献   
30.
Latino and White/European American children (N = 99; 5–11 years of age) participated in a study designed to examine their perceptions of racial/ethnic discrimination in educational settings. Children heard scenarios involving two children of different races/ethnicities, one who received a more positive outcome from a teacher than the other. Children were then asked about the reasons for the differential outcomes. The role of (a) situational information (i.e., the race/ethnicity of the children and teacher in the story, and information about the teacher's past choices); (b) social-cognitive abilities (i.e., theory of mind); and (c) child characteristics (i.e., child's race/ethnicity and racial/ethnic attitudes) in facilitating children's attributions to discrimination was assessed. Results indicated that children most frequently attributed differential outcomes to the quality of work or the ability of students. Children were most likely to make an attribution to discrimination when the teacher rewarded a same-race/ethnicity child and had a history of similar behavior. Children's attention to situational information was moderated, however, by their social-cognitive abilities. Children's own race/ethnicity and ethnic attitudes also affected their perceptions of discrimination.  相似文献   
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