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   16576篇
  免费   1356篇
  国内免费   967篇
  2023年   206篇
  2022年   183篇
  2021年   267篇
  2020年   499篇
  2019年   589篇
  2018年   543篇
  2017年   655篇
  2016年   667篇
  2015年   413篇
  2014年   525篇
  2013年   1764篇
  2012年   348篇
  2011年   434篇
  2010年   367篇
  2009年   562篇
  2008年   744篇
  2007年   786篇
  2006年   743篇
  2005年   635篇
  2004年   546篇
  2003年   454篇
  2002年   425篇
  2001年   263篇
  2000年   252篇
  1999年   217篇
  1998年   173篇
  1997年   148篇
  1996年   120篇
  1995年   114篇
  1994年   99篇
  1993年   82篇
  1992年   61篇
  1991年   45篇
  1990年   48篇
  1989年   26篇
  1988年   40篇
  1987年   26篇
  1985年   368篇
  1984年   417篇
  1983年   344篇
  1982年   449篇
  1981年   441篇
  1980年   442篇
  1979年   394篇
  1978年   444篇
  1977年   349篇
  1976年   353篇
  1975年   272篇
  1974年   278篇
  1973年   236篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
本研究基于情绪的认知评价理论,探讨了不合规任务对新员工工作投入的动态影响机制。通过收集分析71名新员工连续5个工作日的追踪数据发现,不合规任务会诱发新员工的不愉快情绪,进而影响其工作投入,工作成长观能够有效缓冲这一负面影响。以上结论拓宽了不合规任务的影响后果,并为如何干预不合规任务给新员工带来的消极影响提供了启示。  相似文献   
992.
Cognitive inhibition has been suggested to deteriorate in Alzheimer’s disease. While numerous studies with different experimental paradigms found evidence on impaired inhibition in attention and memory, evidence in favour of intact memory inhibition has been reported with regard to the phenomenon of retrieval-induced forgetting (Moulin et al., 2002). Here, we adapted the previously used paradigm in order to reduce the contribution of non-inhibitory processes and examined whether retrieval-induced forgetting could still be observed in a sample of participants with diagnosed Alzheimer’s disease. In contrast to the previous finding, we found that retrieval-induced forgetting only occurred in an age-matched control group. These results suggest that inhibitory deficits in Alzheimer’s disease also generalize to memory inhibition that resolves interference occurring during retrieval, whereas effects of retrieval-induced forgetting may still occur when non-inhibitory causes, such as, blocking by previously retrieved content, are not precluded.  相似文献   
993.
Male and female college students were instigated to aggression by a confederate's shocks during a preliminary task. The confederate informed half of the treatment subjects of the response strategy which he intended to adopt. The other half received an irrelevant message. All subjects then competed against the confederate, who employed one of the following five response consequence strategies: a) set a maximum shock on all trials; b) set a minimum shock on all trials; c) set shocks identical to the subject's response on the preceding trial; d) set shocks two settings below the subject's response; or e) set shocks two settings above the subject's. The subject's latency to setting a shock, the intensities of the shocks set, the durations of the shock settings, and the subject's reaction times were recorded. When an irrelevant message was delivered, passive responses, well below those of the opponent, resulted in the lowest level of retaliation. In the presence of a relevant message, the match-same strategy emerged as an effective deterrent to aggressive behavior. The results were found to be consistent with predictions derived from an application of the norm of reciprocity and research demonstrating the enhancing effects achieved through the communication of existing contingencies.  相似文献   
994.
王晓华 《管子学刊》2007,(4):99-102
人与自然关系是文学表现的重要母题。透过文学的发展,可以窥视出人类社会在社会实践推动下所走过的历史道路。本文意在通过中西文学发展中人与自然关系的描写,揭示人与自然关系的变化过程,并在历史的视野中审视生态批判的当代意义。  相似文献   
995.
赵沛 《管子学刊》2007,(3):110-116
随着今文经学的复兴,晚清学术在今古文学的激烈冲突中展开。在这一过程中,《左传》研究一直是核心的内容。晚清《左传》研究主要呈现出刘逢禄、康有为为代表的今文学与章太炎为代表的古文学两大学派争论的态势。廖平的《左传》研究,与两派的学术路径既有联系,有呈现出不同的学术特色,在晚清学术研究中独树一帜,值得关注。  相似文献   
996.
刘红霞 《管子学刊》2007,(4):114-117
本文根据《曾子》一书的著录和引用情况,考订出《曾子》一书大约在六朝以前亡佚八篇,其余十篇保存在《大戴礼记》篇名中带有"曾子"二字的十篇。自宋至清,出现很多《曾子》书的辑本,本文对这些辑本做了系统的梳理。  相似文献   
997.
Electrical stimulation of the region of the lateral hypothalamus produced a consistent form of quiet-biting attack behavior in cats. In one series of experiments, cats, implanted with electrodes from which attack had been elicited, were anesthetized and then were injected with a bolus of 14C-2-deoxyglucose at the same time as electrical stimulation was delivered through the attack electrodes. Brains prepared for X-ray autoradiography revealed that lateral hypothalamic stimulation activated the classical medial forebrain bundle pathway supplying the septal region, diagonal band, lateral preoptic area, and ventral tegmental region. Stimulation of quiet-attack sites in perifornical hypothalamus resulted in the activation of a much more extensive projection system which included the central and lateral tegmental fields of the midbrain and pons, and central gray region, as well as the structures described above. In a second series of experiments, 3H-leucine was placed into the region of the electrode tip from which attack was elicited in order to identify more precisely the pathways arising from that site. In general, tritiated amino acid radioautography replicated the 14C-2-deoxyglucose findings. In addition, the amino acid radioautographic data revealed the presence of extensive projections from perifornical hypothalamus to such pontine structures as the nucleus locus coeruleus, motor nucleus of NV , and the lateral pontine tegmental field. The functional connections between the lateral hypothalamic “attack region” and lateral preoptic zone were also confirmed by electrophysiological methods.  相似文献   
998.
An explanation-approach within the frame of a universal and integrating theory of aggression is favored for understanding the effects of exposure to violence. Kornadt's Motivation Theory of Aggression is used to generate several hypotheses concerning the effects of aggressive movies on a viewer's expectancy-value-cognitions and these are tested in an experiment. The experiment suggests that aggressive stimulation is able to change aggression-related expectancy-value-cognitions in an aggression-facilitating direction. Based on these results, an attempt is made to explain increases in the aggression of viewers in terms of the Motivation Theory of Aggression. © 1993 Wiley-Liss, Inc.  相似文献   
999.
曹艳芳  尹锋超 《管子学刊》2006,(2):122-125,128
商周文化东渐是山东地区商周考古的一个重要课题,淄潍河流域则是山东地区商周考古的一个关键性区域,随着考古资料的日益丰富,从考古学角度探讨淄潍河流域商周文化东渐及其历史背景已成为可能。  相似文献   
1000.
In expected utility many results have been derived that give necessary and/or sufficient conditions for a multivariate utility function to be decomposable into lower-dimensional functions. In particular, multilinear, multiplicative and additive decompositions have been widely discussed. These utility functions can be more easily assessed in practical situations. In this paper we present a theory of decomposition in the context of nonadditive expected utility such as anticipated utility or Choquet expected utility. We show that many of the results used in conventional expected utility carry over to these more general frameworks. If preferences over lotteries depend only on the marginal probability distributions, then in expected utility the utility function is additively decomposable. We show that in anticipated utility the marginality condition implies not only that the utility function is additively decomposable but also that the distortion function is the identity function. We further demonstrate that a decision maker who is bivariate risk neutral has a utility function that is additively decomposable and a distortion function q for which q(½) = ½.  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