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   1306篇
  免费   140篇
  国内免费   86篇
  1532篇
  2024年   2篇
  2023年   22篇
  2022年   25篇
  2021年   27篇
  2020年   48篇
  2019年   66篇
  2018年   66篇
  2017年   69篇
  2016年   78篇
  2015年   48篇
  2014年   56篇
  2013年   256篇
  2012年   41篇
  2011年   56篇
  2010年   31篇
  2009年   71篇
  2008年   67篇
  2007年   79篇
  2006年   71篇
  2005年   59篇
  2004年   49篇
  2003年   58篇
  2002年   30篇
  2001年   23篇
  2000年   18篇
  1999年   21篇
  1998年   17篇
  1997年   11篇
  1996年   8篇
  1995年   11篇
  1994年   10篇
  1993年   11篇
  1992年   7篇
  1991年   4篇
  1990年   5篇
  1989年   4篇
  1988年   4篇
  1987年   1篇
  1985年   1篇
  1981年   1篇
排序方式: 共有1532条查询结果,搜索用时 0 毫秒
861.
对8000名河北青少年进行问卷调查,表明大部分青少年对艾滋病的传播途径、预防等知识有所了解,也有一定数量的青少年对艾滋病基本知识的了解不够全面和准确.今后的艾滋病预防宣传教育需要在广度、深度上加强,注重知识性、影响性和实效性,在宣传教育上注重社会、学校、家庭教育的结合.  相似文献   
862.
Call J 《Cognition》2007,105(1):1-25
Four bonobos, seven gorillas, and six orangutans were presented with two small rectangular boards on a platform. One of the boards had a piece of food under it so that it acquired an inclined orientation whereas the other remained flat on the platform. Subjects preferentially selected the inclined board. In another experiment, subjects were initially presented with two inclined boards and a transformation took place in which one of the boards fell flat to the platform while the other remained inclined. Subjects also preferred the board that remained inclined. Two additional experiments highlighted some of the possible limitations of their reasoning in this task. Presented with two inclined boards, one of which was visibly supported by a piece of wood, they failed to systematically select the unsupported one whose only reason for being inclined was the presence of the reward. Another experiment presented two rewards in each trial (instead of the customary one) in one of the following two combinations: large banana vs. small carrot or small banana vs. large carrot. Prior to the test, E presented both rewards to the subject and then hid each of them under one of the boards so that both boards were differentially inclined due to the different sizes of the rewards involved. Although subjects selected the board that showed a greater inclination (thus securing the larger reward), they disregarded the type of food that was involved. This often meant that they chose the large carrot over the small banana even though they reversed such a choice when the rewards were not occluded by the boards. Providing subjects with a 'reminder' of the type of reward hidden under the boards did not alter the original results. There was no evidence of learning throughout the various experiments and control tests ruled out the possibility of inadvertent cuing by the experimenter, poor performance due to a lack of motivation, or good performance due to a predisposition to select objects with sloped surfaces. It is concluded that subjects made some inferences about the reason for the inclined orientation of the boards, and not simply associated an inclined orientation with the presence of the reward.  相似文献   
863.
Abstract: We used a task facilitation paradigm to examine whether self‐knowledge reference and self‐monitoring have a functional relationship. Eighteen participants performed a series of tasks: self‐knowledge reference, evaluation, self‐monitoring, and semantic. Responses on the self‐knowledge reference task were faster when the previous task was self‐monitoring rather than semantic. However, responses on the self‐monitoring task were similar regardless of whether it was preceded by the self‐knowledge reference task or the evaluation task. Our results suggest that self‐monitoring induces self‐knowledge reference.  相似文献   
864.
The effects of the phonological similarity between a letter sound and the sound in a spoken word, and phonological awareness on letter-sound learning were examined. Two groups of 41 kindergartners were taught four letter sounds. First, both groups had to learn the associations between four symbols and four familiar words. Next, both groups were taught the letter sounds that were paired to these same symbols. Each letter sound corresponded to the first sound of the word that was previously associated with that symbol in the phonological similarity group, whereas such a relation was absent in the other group. In addition, measures of vocabulary, letter knowledge, and phonological awareness were administered. Phonological similarity facilitated letter-sound learning. Individual differences in phonological awareness had a strong effect on letter-sound learning even after current letter knowledge was controlled. Unexpectedly, the effects of phonological awareness and the ability to use phonological similarity on letter-sound learning were found to be independent.  相似文献   
865.
Williamson (2000) [Knowledge and its Limits, Oxford: Oxford University Press] argues that attempts to substitute narrow mental states or narrow/environmental composites for broad and factive mental states will result in poorer explanations of behavior. I resist Williamson’s arguments and use Twin-Earth style cases to argue for the causal inertness of broad mental states.  相似文献   
866.
867.
Although knowledge about genetic concepts is important for individuals to be active participants in medical technologies that use genetic science, limited information is available on knowledge about basic genetic concepts and terminology in African Americans. The purpose of this study was to evaluate knowledge about general genetic concepts and medical genetics terminology among African Americans and to identify factors having independent associations with knowledge. Participants were 109 adult African Americans enrolled in a study on attitudes about race, genetics, and smoking. The majority of respondents were knowledgeable about general genetic concepts, but were less knowledgeable about medical genetics terminology. Education was the only factor independently associated with knowledge about sporadic disorders in multivariate logistic regression analysis. Respondents with at least some college education were most likely to be knowledgeable about sporadic disorders (OR=2.70, 95% CI=1.10, 6.67, p=.03). The results of this study suggest that genetics education targeted to African Americans may need to focus on increasing understanding about technical concepts related to genetics.  相似文献   
868.
弗洛姆的道德认识理论建立在对人的研究的基础上。认识善、恶以及道德规范,主要是对人性以及蕴含在人性中的可能性的认识。由于人是有生命的,处于不断的生成过程中,因此,对人的认识必须打破客观主义的认识模式,认识主体打破与对象之间的鸿沟,实现融合合一,以整个的内在体验对象,从而获得如对象本来所是的样子去认识对象。弗洛姆的体验性知识在强调人的主观情感投入到认识中的同时,认为认识对象是外在实在的,知识是普遍性有效的,因而是一种客观的认识。弗洛姆的道德认识理论与认识论的实践转向的暗相契合。  相似文献   
869.
Miki Takasuna describes knowledge transfer between elite communities of scientists, a process by which ideas become structurally transformed in the host culture. By contrast, a process that we have termed knowledge transfer by de-elitization occurs when (a) participatory action researchers work with a community to identify a problem involving oppression or exploitation. Then (b) community members suggest solutions and acquire the tools of analysis and action to pursue social actions. (c) Disadvantaged persons thereby become more aware of their own abilities and resources, and persons with special expertise become more effective. (d) Rather than detachment and value neutrality, this joint process involves advocacy and structural transformation. In the examples of participatory action research documented here, Third World social scientists collaborated with indigenous populations to solve problems of literacy, community-building, land ownership, and political voice. Western social scientists, inspired by these non-Western scientists, then joined in promoting PAR both in the Third World and in Europe and the Americas, e.g., adapting it for solving problems of people with disabilities or disenfranchised women. Emancipatory goals such as these may even help North American psychologists to break free of some methodological chains and to bring about social and political change.
William R. WoodwardEmail:
  相似文献   
870.
Adults, preschool children, and nonhuman primates detect and categorize food objects according to substance information, conveyed primarily by color and texture. In contrast, they perceive and categorize artifacts primarily by shape and rigidity. The present experiments investigated the origins of this distinction. Using a looking time procedure, Experiment 1 extended previous findings that rhesus macaques (Macaca mulatta) generalize learning about novel food objects by color over changes in shape. Six additional experiments then investigated whether human infants show the same signature patterns of perception and generalization. Nine-month-old infants failed to detect food objects in accord with their intrinsic properties, in contrast to rhesus monkeys tested in previous research with identical displays. Eight-month-old infants did not privilege substance information over other features when categorizing foods, even though they detected and remembered this information. Moreover, infants showed the same property generalization patterns when presented with foods and tools. The category-specific patterns of perception and categorization shown by human adults, children, and adult monkeys therefore were not found in human infants, providing evidence for limits to infants’ domains of knowledge.  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