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31.
Parental presence is often employed to alleviate distress in children within the context of surgery under general anesthesia. The critical component of this intervention may not be the presence of the parent per se, but more importantly the behaviors in which the parent and child engage when the parent is present. The purpose of the current study was to examine the sequential and reciprocal relationships between parental behaviors and child distress during induction of general anesthesia. Participants were 32 children (3–6 years) receiving dental surgery as a day surgery procedure, and their parents. A modified Child Adult Medical Procedures Interaction Scale-Revised was used to code parent and child behaviors. Initial child distress led to increased parental provision of reassurance and decreased provision of physical comfort. Our findings may inform the development of preoperative preparation programs whereby parents can be appropriately educated about what behaviors will be helpful/unhelpful for their child during induction of general anesthesia.  相似文献   
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Drawing from conservation of resources theory, this study examines the curvilinear relationship between employees’ work engagement and their job performance; the authors also hypothesize that employees’ feedback-seeking behavior is a pertinent boundary condition that mitigates this curvilinear relationship. Personal resources likely mediate the work engagement–job performance relationship too. Data gathered from 190 employees and their supervisors in Ukraine (study 1) and from 171 employees and their supervisors in Pakistan (study 2) reveal that although work engagement enhances job performance, the effect occurs at a declining rate as work engagement increases. Feedback-seeking behavior moderates this curvilinear relationship, so the decline in the rate at which work engagement enhances job performance is mitigated by higher levels of feedback-seeking behavior. Furthermore, after controlling for the role of feedback-seeking behavior, the curvilinear effect of work engagement on job performance is mediated by personal resources (i.e., self-efficacy, optimism, and resilience). These findings have significant implications for research and practice.

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As a group, cigarette smokers exhibit blunted subjective, behavioral, and neurobiological responses to nondrug incentives and rewards, relative to nonsmokers. Findings from recent studies suggest, however, that there are large individual differences in the devaluation of nondrug rewards among smokers. Moreover, this variability appears to have significant clinical implications, since reduced sensitivity to nondrug rewards is associated with poorer smoking cessation outcomes. Currently, little is known about the neurobiological mechanisms that underlie these individual differences in the responsiveness to nondrug rewards. Here, we tested the hypothesis that individual variability in reward devaluation among smokers is linked to the functioning of the striatum. Specifically, functional magnetic resonance imaging was used to examine variability in the neural response to monetary outcomes in nicotine-deprived smokers anticipating an opportunity to smoke—circumstances found to heighten the devaluation of nondrug rewards by smokers in prior work. We also investigated whether individual differences in reward-related brain activity in those expecting to have access to cigarettes were associated with the degree to which the same individuals subsequently were willing to resist smoking in order to earn additional money. Our key finding was that deprived smokers who exhibited the weakest response to rewards (i.e., monetary gains) in the ventral striatum were least willing to refrain from smoking for monetary reinforcement. These results provide evidence that outcome-related signals in the ventral striatum serve as a marker for clinically meaningful individual differences in reward-motivated behavior among nicotine-deprived smokers.  相似文献   
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Background and Objective: This research examines the detrimental effects of workplace bullying as a social stressor on employees’ job performance, organizational retaliatory behaviors, and organizational citizenship behaviors and how the availability of support can reduce the negative impact of bullying. Using social exchange theory and the conservation of resources theory as theoretical frameworks, we propose that workplace bullying drains personal resources, leading to reduced job performance, low citizenship behaviors, and increased organizational retaliatory behaviors. We also propose that perceived organizational support acts as moderator, such that it reduces the detrimental effects of bullying on employee behaviors.

Research Design and Methods: We tested our hypotheses in two field studies (N?=?478 and N?=?395) conducted in Pakistan.

Results: The results of both studies supported the assertion that workplace bullying exacerbates employees’ job performance, reduces organizational citizenship behaviors and intensifies organizational retaliatory behaviors. The idea that perceived organizational support would moderate the bullying-work behavior relationships found mixed support. While perceptions of organizational support reinforced the bullying-job performance and bullying-retaliatory behaviors relationships, it did not moderate the bullying-citizenship behaviors relationship in the suggested direction.

Conclusion: The findings show that workplace bullying leads to more organizational citizenship behaviors when employee’s perceptions of organizational support is high.  相似文献   
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Tool use is typically explored via actor-tool interactions. However, the target-object (that which is being acted on) may influence perceived action possibilities and thereby guide action. Three different tool-target-object pairings were tested (Experiment 1). The hammering action demonstrated the greatest sensitivity and therefore subsequently used to further investigate target-object pairings. The hammer was removed as an option and instructions were provided using pictorial (Experiment 2), written (Experiment 3), and both pictorial and written formats (Experiment 4). The designed tool is chosen when available (Experiment 1) and when removed as a choice (i.e., the hammer), participants perform the same action associated with the designed tool (i.e., hammering) regardless of instruction method (Experiments 2, 3, and 4).  相似文献   
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