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   3313篇
  免费   361篇
  国内免费   768篇
  2024年   6篇
  2023年   73篇
  2022年   82篇
  2021年   128篇
  2020年   147篇
  2019年   136篇
  2018年   157篇
  2017年   150篇
  2016年   163篇
  2015年   116篇
  2014年   126篇
  2013年   302篇
  2012年   212篇
  2011年   250篇
  2010年   233篇
  2009年   228篇
  2008年   248篇
  2007年   328篇
  2006年   287篇
  2005年   263篇
  2004年   181篇
  2003年   126篇
  2002年   73篇
  2001年   50篇
  2000年   46篇
  1999年   45篇
  1998年   39篇
  1997年   31篇
  1996年   18篇
  1995年   24篇
  1994年   24篇
  1993年   15篇
  1992年   11篇
  1991年   14篇
  1990年   11篇
  1989年   16篇
  1988年   6篇
  1987年   10篇
  1986年   5篇
  1985年   13篇
  1984年   7篇
  1983年   5篇
  1982年   6篇
  1981年   9篇
  1980年   6篇
  1979年   8篇
  1976年   2篇
  1975年   2篇
  1973年   1篇
  1972年   2篇
排序方式: 共有4442条查询结果,搜索用时 15 毫秒
101.
《管子》"人与天调"的生态观   总被引:2,自引:0,他引:2  
《管子·水地》等篇章,阐述了人类应合理地使用和保护自然资源;以遵循自然规律为准则,建立人与环境良性互动的常态,它们忠实地记载了管仲及其学派在倡导农业生产中所表现出的环境与生存发展的生态平衡思想。  相似文献   
102.
In this study we discuss the problem of multi-objective mathematical programming with constraints defined by ‘max-min’ composite fuzzy relation equations. Since the feasible region is normally non-convex, the properties of the efficient points of a non-convex feasible region under multi-objectives are investigated and illustrated by examples. The necessary and sufficient conditions are proposed and proved. To facilitate decisions, a procedure that transforms these efficient points of an interval-valued decision space into a constant-valued decision space is proposed when the level of confidence is given by a decision maker. Then the transformed problem becomes a multi-attribute decision problem that can be evaluated by Yager's method to find the optimal alternative.  相似文献   
103.
The current experiments examined the creation of nonbelieved true and false memories after imagining bizarre and familiar actions using the imagination inflation procedure (Goff & Roediger, 1998). In both experiments, participants took part in three sessions. In Session 1, participants had to perform or imagine simple familiar actions (e.g., “stir the water with the spoon”) and bizarre actions (e.g., “balance the spoon on your nose”). A day later, participants needed to imagine simple actions of which some were new actions, and some were old actions that appeared in the first session. After a week, the participants completed a recognition task. For those actions that were correctly or incorrectly remembered as having been performed, the participant was challenged that the action was not performed in order to evoke nonbelieved true and false memories. In general, we found that the imagination inflation procedure can successfully induce participants to produce nonbelieved memories. In Study 1, we successfully induced nonbelieved memories for bizarre actions, although in general nonbelieved memory rates were low. In Study 2, more participants formed nonbelieved memories for bizarre actions than for familiar actions. Also, we found that especially belief was more susceptible to revision when memories were challenged than recollection. In two experiments, we showed that nonbelieved memories can successfully be induced for both familiar and bizarre actions.  相似文献   
104.
目的:探讨语言熟练度对Stroop效应的影响及其背后的脑机制。材料与方法:17位被试参与本研究。被试母语为汉语,第二语言为英语。在被试完成中英文的stroop色字的任务过程中对被试进行fMRI扫描。结果:在色字相一致的条件下,中文任务与英文任务相比,双侧背侧枕叶及右侧背外侧前额叶有更强的激活; 反向比较,双侧腹侧枕叶有更强的激活。在色字不一致的条件下,中文任务与英文任务相比,双侧背外侧前额叶、右侧枕下回有更强的激活; 反向比较,并无显著激活的脑区。此外,中文Stroop效应引起左侧额下回显著的激活。英文Stroop效应中,左侧额下回无显著激活。结论:结合前人研究,我们得出,语言熟练度影响了对注意控制有重要作用的背外侧前额叶以及与反应抑制有关的左侧额下回在Stroop任务中的参与程度,进而影响了Stroop任务的表现  相似文献   
105.
经民族学与宗教学双重比较研究发现,不像其他民族、宗教,汉族及其宗教都是很难说清的,即不仅汉族的族源问题与特征问题难以说清,而且汉族的宗教认同也远比其他民族宗教难以说清。在学界,很少有人把汉族与汉族宗教联系起来。但从民族与宗教的相互关系视角,能够更好探明二者的渊源。用宗教阐释汉族的渊源,能使人豁然开朗。汉族的族性与汉族的宗教性是互为因果的,汉族的先民创造了独特的多元宗教信仰,多元宗教反过来造就了后来汉族的多元文化属性,使其能够吸收更多周边民族的精华,变成更大更为多元的民族,这是汉族能够成为世界第一大民族的根本原因之一。汉族及其宗教根源在于早期汉族并未塑造创世说,造成上古时代创世说的空白,对汉族宗教产生和发展都产生了深远影响。为此,本文探讨的重点问题是汉族发生学意义上的宗教渊源。  相似文献   
106.
Advertisements using assertive language are commonly seen in marketing communications, yet assertive language has often been shown to be ineffective in communication and even decrease compliance. Recent research began to examine factors that influence the effectiveness of assertive advertising messages, but little research has studied the potential moderating role of consumer‐related factors. The current research fills this gap by investigating the moderating role of consumers’ power. Across five studies, the authors find that for high‐power consumers, assertive ads are effective in promoting want products but ineffective in promoting should products. For low‐power consumers, however, assertive ads are effective in promoting should products but ineffective in promoting want products. Moreover, the authors show that this pattern of results is driven (mediated) by consumers’ perception of the fit between the advertising message and the advertised product. Theoretical and practical implications of the findings are discussed.  相似文献   
107.
Incremental validity testing (i.e., testing whether a focal predictor is associated with an outcome above and beyond a covariate) is common (e.g., 57% of Personal Relationships articles in 2017), yet it is fraught with conceptual and statistical problems. First, researchers often use it to overemphasize the novelty or counterintuitiveness of findings, which hinders cumulative understanding. Second, incremental validity testing requires that the focal predictor and the covariate represent separate constructs; researchers risk committing the “jangle fallacy” without such evidence. Third, the most common approach to incremental validity testing (i.e., standard multiple regression, 88% of articles) inflates Type I error and can produce invalid conclusions. This article also discusses the relevance of these issues to dyadic/longitudinal designs and offers concrete solutions.  相似文献   
108.
Over the last 15 years, researchers have been increasingly interested in understanding the nature and development of children’s selective trust. Three meta‐analyses were conducted on a total of 51 unique studies (88 experiments) to provide a quantitative overview of 3‐ to 6‐year‐old children’s selective trust in an informant based on the informant’s epistemic or social characteristics, and to examine the relation between age and children’s selective trust decisions. The first and second meta‐analyses found that children displayed medium‐to‐large pooled effects in favor of trusting the informant who was knowledgeable or the informant with positive social characteristics. Moderator analyses revealed that 4‐year‐olds were more likely to endorse knowledgeable informants than 3‐year‐olds. The third meta‐analysis examined cases where two informants simultaneously differed in their epistemic and social characteristics. The results revealed that 3‐year‐old children did not selectively endorse informants who were more knowledgeable but had negative social characteristics over informants who were less knowledgeable but had positive social characteristics. However, 4‐ to 6‐year‐olds consistently prioritized epistemic cues over social characteristics when deciding who to trust. Together, these meta‐analyses suggest that epistemic and social characteristics are both valuable to children when they evaluate the reliability of informants. Moreover, with age, children place greater value on epistemic characteristics when deciding whether to endorse an informant’s testimony. Implications for the development of epistemic trust and the design of studies of children’s selective trust are discussed.  相似文献   
109.
Continental Philosophy Review - The essay examines three major Chinese translations of Heidegger’s Dasein as cizai (此在), yuanzai (緣在) and qinzai...  相似文献   
110.
变化盲视是指在某些条件下人们往往觉察不到视觉场景中实质性的改变。最近研究表明,变化盲视发生时个体虽然不能有意识地报告变化,但却能无意识地对变化刺激进行加工和反应,也就是产生了内隐觉察。内隐觉察能够引导注意、影响反应速度。与觉察和无觉察相比,内隐觉察的眼动模式具有鲜明的特征。与无变化试次相比,盲视试次可以观察到显著的脑电活动变化以及不同的脑区激活。内隐觉察的研究虽然取得了丰富的成果,但也还存在着一些需要明确和解决的问题,如左侧前额叶在内隐觉察中的作用,以及如何将没有视觉干扰的范式应用到变化觉察的神经活动测量中等。  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