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   1623篇
  免费   167篇
  国内免费   215篇
  2005篇
  2023年   36篇
  2022年   29篇
  2021年   64篇
  2020年   113篇
  2019年   79篇
  2018年   72篇
  2017年   97篇
  2016年   82篇
  2015年   65篇
  2014年   82篇
  2013年   269篇
  2012年   46篇
  2011年   52篇
  2010年   54篇
  2009年   74篇
  2008年   72篇
  2007年   78篇
  2006年   80篇
  2005年   67篇
  2004年   56篇
  2003年   42篇
  2002年   42篇
  2001年   31篇
  2000年   27篇
  1999年   23篇
  1998年   21篇
  1997年   26篇
  1996年   18篇
  1995年   15篇
  1994年   7篇
  1993年   5篇
  1992年   6篇
  1991年   5篇
  1989年   7篇
  1988年   5篇
  1987年   6篇
  1986年   4篇
  1985年   16篇
  1984年   12篇
  1983年   7篇
  1982年   9篇
  1981年   11篇
  1980年   16篇
  1979年   9篇
  1978年   13篇
  1977年   14篇
  1976年   10篇
  1975年   11篇
  1974年   5篇
  1973年   8篇
排序方式: 共有2005条查询结果,搜索用时 15 毫秒
911.
A conceptualization of anxiety as comprising three loosely coupled response systems of overt behavior, verbal report, and physiological activation has proven useful in clinical and theoretical work. With this framework as a starting point, an information-processing approach to the study of emotion is described. Emotions are conceived as affective programs within the brain, with information coded as propositions organized into associative networks. Affective expression results when such a network is accessed and processed, which can occur when a sufficient number of propositions are activated by environmental stimuli and/or internal associations. It is hypothesized that information about the expressive physiology is an integral component of the associative structure, and that processing of the network accordingly results in measurable psychophysiological response. Data from studies of emotional imagery, as well as other areas of research, are reviewed in support of these theories. The utility of this approach for the assessment of anxiety disorders is discussed, and results of clinical studies are presented to suggest that individual differences in accessing and processing emotional information may bear significant implications for prognosis and treatment selection. It is speculated that differences among the anxiety disorders could be interpreted in terms of the degree of cognitive organization of the network, leading to potential refinement of current diagnostic categories. In conclusion, cognitive psychology paradigms are discussed in terms of their application to the assessment and treatment of anxiety disorders.The authors' research is supported in part by NIMH Grant MH 37757. Portions of this paper were presented at the NIMH Conference on Anxiety, Tuxedo, NY, September 1983. Several of its themes were developed there at more length, and this material may be found in the publication of the conference proceedings (Tuma & Maser, 1985).  相似文献   
912.
《Médecine & Droit》2016,2016(140):117-124
The normative framework intervened in recent years to renovate and establish a coherent framework to the hospital system questions the bipartite division between private medicine and public medicine. The state supervision, consolidated by the Law of 26 January 2016 on the modernization of the health system, blurs the boundaries and involves renewing the qualification of our health system.  相似文献   
913.
Councils are commonly formed to address social issues including intimate partner violence (IPV). Research suggests that councils may be well positioned to achieve proximal outcomes, but that their success may depend on contextual factors. The current study compared providers and health care settings at two points in time to explore the degree to which the Health Care Council achieved proximal outcomes in the health care response to IPV, including: (a) providers' reported capacity to screen for IPV, (b) providers' beliefs about IPV as a health care issue and about the IPV screening process, (c) providers' screening behaviors and (d) organizational policies and protocols to encourage screening. This study, while preliminary, provides support for council-based efforts to stimulate change in the health care response to IPV and also highlights the central role that organizational environment plays in shaping desired outcomes.  相似文献   
914.
In multi‐attribute utility theory, it is often not easy to elicit precise values for the scaling weights representing the relative importance of criteria. A very widespread approach is to gather incomplete information. A recent approach for dealing with such situations is to use information about each alternative's intensity of dominance, known as dominance measuring methods. Different dominance measuring methods have been proposed, and simulation studies have been carried out to compare these methods with each other and with other approaches but only when ordinal information about weights is available. In this paper, we use Monte Carlo simulation techniques to analyse the performance of and adapt such methods to deal with weight intervals, weights fitting independent normal probability distributions or weights represented by fuzzy numbers. Moreover, dominance measuring method performance is also compared with a widely used methodology dealing with incomplete information on weights, the stochastic multicriteria acceptability analysis (SMAA). SMAA is based on exploring the weight space to describe the evaluations that would make each alternative the preferred one. Copyright © 2012 John Wiley & Sons, Ltd.  相似文献   
915.
印象形成过程是心理学的经典研究主题,最近随着神经科学的兴起和脑成像技术的成熟,研究者开始从神经科学的角度审视人类的印象形成过程.印象形成主要基于三种信息,即面孔知觉,直接互动和二手信息.就面孔而言,基于面孔的印象形成更为快速和准确,其中杏仁核在其中起着重要的作用;作为对照,文章简要介绍了基于二手信息和直接互动的印象形成,它们更多涉及深思熟虑的任务,激活内侧前额皮层和颞上沟后端.印象形成的神经机制,线索之间的关系、印象形成的影响伴随着新技术的运用将会得到研究者的关注.  相似文献   
916.
时距加工的记忆负荷效应   总被引:1,自引:0,他引:1  
为了探索非时间任务短时记忆加工对不同长度时距加工的影响是否一致,本研究采用双任务范式,操纵时距编码阶段的短时记忆加工负荷,以平均复制时距为因变量指标,考察了非时间任务短时记忆加工对1-6秒时距加工的影响。结果发现,1秒、2秒及3秒的平均复制长度不随记忆负荷的大小而变化,4秒、5秒及6秒的平均复制长度随着记忆负荷变大而缩短。这意味着非时间短时记忆对时距加工影响具有选择性。  相似文献   
917.
In this study we investigated the mediated influence of core self-evaluations (CSE) on employee health problems via job satisfaction and work stress, and the degree to which genetic factors explain these mediated relationships. Based on data obtained from a sample of 594 Swedish twins (114 monozygotic twin pairs and 183 dizygotic twin pairs), conventional path analysis results supported the mediated effects of CSE on employee health via job satisfaction and work stress, after controlling for conscientiousness and extraversion. Behavioral genetic analyses showed significant heritability of all four variables. Moreover, we found that the mediated relationships via job satisfaction and work stress are explained by genetic factors, such that the genetic source of job satisfaction and work stress mediates the genetic influence of CSE on health problems. These results highlight the role played by genetic factors in better understanding the relationships between CSE, work attitudes, and health outcomes.  相似文献   
918.
The present study elucidates that the illusion of framing in risky decisions is induced by the expected losses with the shift of independent or complementary schemata. Throughout three studies, the reversal of risk preferences in the gain and loss frames was confirmed when the expected number of losses was unknown. When it was known, however, the reversal was reduced in Study 2 where the decision makers were informed of all the options in both frames, and eliminated in Study 3 where they elaborated the numbers of lives at stake before making decisions. Further, the complementary schema was more pervasive when the number of expected losses was known, while the independent schema was more common when the number was unknown. These results imply that the illusion of framing is due to the shift of schemata concerning the lives saved and lost. Copyright © 2010 John Wiley & Sons, Ltd.  相似文献   
919.
The aim of latent variable selection in multidimensional item response theory (MIRT) models is to identify latent traits probed by test items of a multidimensional test. In this paper the expectation model selection (EMS) algorithm proposed by Jiang et al. (2015) is applied to minimize the Bayesian information criterion (BIC) for latent variable selection in MIRT models with a known number of latent traits. Under mild assumptions, we prove the numerical convergence of the EMS algorithm for model selection by minimizing the BIC of observed data in the presence of missing data. For the identification of MIRT models, we assume that the variances of all latent traits are unity and each latent trait has an item that is only related to it. Under this identifiability assumption, the convergence of the EMS algorithm for latent variable selection in the multidimensional two-parameter logistic (M2PL) models can be verified. We give an efficient implementation of the EMS for the M2PL models. Simulation studies show that the EMS outperforms the EM-based L1 regularization in terms of correctly selected latent variables and computation time. The EMS algorithm is applied to a real data set related to the Eysenck Personality Questionnaire.  相似文献   
920.
When adversity strikes, organization members often turn to others in order to vent their negative emotions and receive social support. While social interaction is commonly seen as a major resource for organizational resilience, dysfunctional social interactions and their negative effects on coping with and overcoming adversity are less well understood. This conceptual article develops theory on collective rumination—defined as repetitive and prolonged discussions of adverse events that center on the negative and uncontrollable aspects of the situation—and its detrimental effects on organizational resilience. We elaborate that collective rumination emerges through a vicious circle of a shared negative situational assessment and mutual contagion with highly negative emotions. Based on our theorizing, we propose that collective rumination is negatively related to three core dimensions of organizational resilience: perceptions of control, commitment to joint action, and the acceptance of adversity as a challenge. With our conceptual article, we answer earlier calls to theorize about forms of social interactions that are not valuable but destructive for organizational resilience and elucidate previously neglected social dynamics that are dysfunctional for recovering from adversity.  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