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   28512篇
  免费   528篇
  国内免费   3篇
  29043篇
  2020年   318篇
  2019年   370篇
  2018年   529篇
  2017年   543篇
  2016年   624篇
  2015年   470篇
  2014年   489篇
  2013年   2387篇
  2012年   899篇
  2011年   983篇
  2010年   580篇
  2009年   597篇
  2008年   745篇
  2007年   832篇
  2006年   698篇
  2005年   678篇
  2004年   650篇
  2003年   631篇
  2002年   650篇
  2001年   863篇
  2000年   822篇
  1999年   649篇
  1998年   327篇
  1997年   279篇
  1996年   302篇
  1995年   271篇
  1994年   271篇
  1992年   518篇
  1991年   489篇
  1990年   482篇
  1989年   441篇
  1988年   455篇
  1987年   423篇
  1986年   426篇
  1985年   434篇
  1984年   353篇
  1983年   332篇
  1982年   252篇
  1979年   396篇
  1978年   294篇
  1975年   293篇
  1974年   370篇
  1973年   385篇
  1972年   306篇
  1971年   296篇
  1970年   287篇
  1969年   260篇
  1968年   365篇
  1967年   318篇
  1966年   289篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
881.
People respond to disasters in a variety of ways. Some individuals respond to disasters or emergencies with panicked activity while others mobilize resources without panicking. In this article, we propose that the individual response to emergencies is determined by Emergency Responsiveness, the manner in which an individual appraises an emergency situation. We believe Emergency Responsiveness consists of four factors: Risk Taking, Experience with Emergencies, Emergency Anxiety, and Emergency Preparation. In Study One, each of the four subscales of Emergency Responsiveness correlated with personality traits in the hypothesized directions, providing evidence of construct validity. In Study Two, we establish criterion-related validity by demonstrating that a sample of first-responders scored significantly higher than a control sample on all four dimensions. Our results support our hypothesis that Emergency Responsiveness is a measurable individual difference. Implications for first responders and emergency services are discussed.  相似文献   
882.

Purpose

The present study examined the moderating effects of family-supportive supervisor behaviors (FSSB) on the relationship between two types of workplace aggression (i.e., patient-initiated physical aggression and coworker-initiated psychological aggression) and employee well-being and work outcomes.

Methodology

Data were obtained from a field sample of 417 healthcare workers in two psychiatric hospitals. Hypotheses were tested using moderated multiple regression analyses.

Findings

Psychiatric care providers’ perceptions of FSSB moderated the relationship between patient-initiated physical aggression and physical symptoms, exhaustion and cynicism. In addition, FSSB moderated the relationship between coworker-initiated psychological aggression and physical symptoms and turnover intentions.

Implications

Based on our findings, family-supportive supervision is a plausible boundary condition for the relationship between workplace aggression and well-being and work outcomes. This study suggests that, in addition to directly addressing aggression prevention and reduction, family-supportive supervision is a trainable resource that healthcare organizations should facilitate to improve employee work and well-being in settings with high workplace aggression.

Originality

This is the first study to examine the role of FSSB in influencing the relationship between two forms of workplace aggression: patient-initiated physical and coworker-initiated psychological aggression and employee outcomes.
  相似文献   
883.

Purpose

In this study, we explore the effects of travel on performance at the team level using conservation of resources (COR) theory as an explanatory mechanism. We investigate the effects of aggregate travel stress, which we define as the accumulated strain experienced by a team when traveling, on key components of team functioning and performance including team task performance, team concentration level, and counterproductive work behaviors (CWB).

Design/Methodology/Approach

We analyze 3054 games played in the National Football League across six seasons using multilevel structural equation modeling. Replicating our findings, we also analyzed an additional 11,802 games played in the National Basketball Association across five seasons.

Findings

Aggregate travel stress, as a latent construct, negatively impacts team task performance and team concentration level. Team concentration partially mediates the relationship between aggregate travel stress and CWB.

Implications

Findings suggest that travel has a deleterious effect on various forms of team functioning and performance. As a result, organizations and leaders need to be aware of the potential side effects of travel, and researchers need to further incorporate travel into models and examinations of workplace stress.

Originality/Value

This is the first study to provide a theoretically driven investigation of the effects of business travel on team outcomes and to apply COR theory to team-level phenomena. Results put forth offer a more nuanced understanding of the effects of travel as well as open up new avenues of exploration for COR theory.
  相似文献   
884.

Purpose

The current article reviews extant knowledge on courage and identifies a dimension of courage relevant to modern organizations, social courage, which is an (a) intentional, (b) deliberate, and (c) altruistic behavior that (d) may damage the actor’s esteem in the eyes of others. Through a multiple-study process, quantitative inferences are derived about social courage, and the Workplace Social Courage Scale (WSCS) is created.

Design

Four studies using seven samples analyze the WSCS’s psychometric properties, internal consistency, method effects, discriminant validity, convergent validity, concurrent validity, and utility. Many of these are investigated or replicated in largely working adult samples.

Findings

Each aspect of the WSCS approaches or meets specified guidelines. Also, social courage is significantly related to organizational citizenship behaviors, and the construct may relate to many other important workplace outcomes.

Implications

The current study is among the first to quantitatively demonstrate the existence of courage as a construct, and the discovered relationships are the first statistical inferences about social courage. Future research and practice can now apply the WSCS to better understand the impact of social courage within the workplace.

Originality

Despite many attempts, no author has created a satisfactory measure of courage, and the current article presents the first successful measure through focusing on a particular courage dimension—social courage. Future research should take interest in the created measure, the WSCS, as its application can derive future inferences about courage and social courage.
  相似文献   
885.
This study proposed and tested a comprehensive, chained mediation model of university students’ academic performance. The hypothesized model included adaptive-positive and maladaptive-negative submodels. The structures and processes in the adaptive-positive submodel were hypothesized to facilitate students’ academic performance, whereas the structures and processes in the maladaptive-negative submodel were hypothesized to undermine it. A sample of 373 university students completed a set of questionnaires measuring their approaches to studying, positive and negative affect, evaluation anxiety, use of creative cognition, motivational orientations, and adaptive and maladaptive metacognitions. Participants’ end-of-semester and prior semester academic performance was retrieved from the university registry. A structural equation model explained 90 % of the variance in students’ future academic performance, supported all but one hypothesized intermediate paths, and revealed that only positive affect in studying and prior academic performance predict directly future academic performance. The theoretical and practical implications of these findings are outlined.  相似文献   
886.
Re-membrance     
Traced sufficiently remotely, all people, profanum vulgus, share a common familial and linguistic heritage. Several Occidental and Oriental religiophilosophical traditions and General Systems (neuro-linguistic/neuro-semantic) Theory propound that resolution of personal illness and intra- and inter-generational psychological conflicts among individuals and within society mandates a figurative, if not a literal return, to the source of conflict or contention—to RE-MEMBER with that source—if healing, peace, resolution, concord, solace, sustenance, and wholeness are to be achieved. Words that communicate effectively, linguistic symbols such as water and the cross, and the action of laying-on-of-hands are methodologies that reaffirm a personal commonality among all traditions and facilitate RE-MEMBRANCE. For those who adhere to the Judeo-Christocentric tradition—who are called and chosen to witness and serve through the sacrament of baptism—healing, support, and sustenance are achieved by RE-MEMBRANCE through the Triune God.  相似文献   
887.
Raphael Lataster and Herman Philipse present an argument which they think decisively demonstrates polytheism over monotheism, if theism is assumed. Far from being decisive, the argument depends on very controversial and likely false assumptions about how to treat infinities in probability. Moreover, these problems are well known. Here, we focus on three objections. First, the authors rely on both countable additivity and the Principle of Indifference, which contradict each other. Second, the authors rely on a particular way of dividing up the possibility space, when there are equally as reasonable alternative divisions which give different answers to the one the authors arrived at. Third, the authors’ argument proves too much, giving us an argument against many positions we should not be able to argue against so easily.  相似文献   
888.
On belief bias in syllogistic reasoning   总被引:7,自引:0,他引:7  
A multinomial model is used to disentangle the respective contributions of reasoning processes and response bias in conclusion-acceptance data that exhibit belief bias. A model-based meta-analysis of 22 studies reveals that such data are structurally too sparse to allow discrimination of different accounts of belief bias. Four experiments are conducted to obtain richer data, allowing deeper tests through the use of the multinomial model. None of the current accounts of belief bias is consistent with the complex pattern of results. A new theory of belief bias is proposed that assumes that most reasoners construct only one mental model representing the premises as well as the conclusion or, in the case of an unbelievable conclusion, its logical negation. New predictions derived from the theory are confirmed in 4 additional studies.  相似文献   
889.
Tested and cross-validated a multidimensional model of predictors of parenting stress on data from a population-based sample of Swedish mothers (N = 1,081) with children ages 6 months to 3 years. The study was a cross-sectional questionnaire study, focusing on the explanation of variance in parenting stress. Structural equation modeling procedures permitted disentanglement of total, direct, and indirect effects. A Swedish instrument based on parts of the Parent Domain in the Parenting Stress Index was used as a measure of stress. The results provided general support for the proposed model. High workload, low social support, perception of the child as fussy-difficult, negative life events, child caretaking hassles, more children in the family, and high maternal age related directly to more stress. Child irregularity contributed indirectly to mother's experienced stress. No buffering effects of social support were found. Forty-eight percent of the variance in the parenting stress measure was explained by the model. Implications for interventions were discussed.  相似文献   
890.
In five experiments, we examined the time course of hemispheric differences in solution activation for insight-like problems. We propose that solving insight problems requires retrieval of unusual interpretations of problem elements, and that right-hemisphere (RH) coarse semantic coding is more likely than left-hemisphere (LH) fine semantic coding to maintain semantic activation of such interpretations. In four experiments, participants attempted word problems for 7 sec (Experiments 1A and 1B) or 2 sec (Experiments 2A and 2B), and 750 msec later responded to lateralized target words. After 7 sec of solving effort, Experiment 1A participants showed greater solution-related priming (i.e., they named solutions faster than unrelated words) for left visual field-RH (lvf-RH) targets than for right visual field-LH (rvf-LH) targets, and Experiment 1B participants made faster solution decisions on target words presented to the RH, as previously demonstrated following 15 sec of effort. After 2 sec of solving effort in Experiment 2A, women showed symmetric solution-related priming, although men showed a slight lvf-RH advantage in priming; and in Experiment 2B participants made equally quick solution decisions for targets presented to the LH and to the RH. In Experiment 3, participants viewed the problems for 1,250 msec then named lateralized target words; they showed symmetric solution-related priming. These experiments demonstrate solution activation initially in both hemispheres, but maintained solution activation only in the RH.  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