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201.
We developed a method for estimating the dollar utility of changes in job performance associated with illnesses and their treatments. Then we applied this method to predict, for each job in the economy, the difference in productivity costs associated with the illness of Seasonal Allergic Rhinitis (SAR) and that due to the difference between 2 commonly used treatments of SAR. The findings suggest that workers are 5% less productive when affected by SAR, and that when workers treat their SAR with desloratadine (a nonsedating antihistamine) instead of diphenhydramine (an over-the-counter 1st-generation antihistamine), they are 7% more productive, translating to a daily productivity cost differential between the 2 treatments of $11 per day, or $2.6 billion annually. The jobs most affected require high amounts of selective attention and perceptual speed (e.g., Aircraft Pilots and Flight Engineers, and those in the fields of manufacturing, security, and emergency response).  相似文献   
202.
The purpose of this study was to examine the role of situational and dispositional factors in contributing to competitive task involvement and performance in young tennis players. One hundred fifty-one adolescent tennis players and their coaches participated in the study. Participants responded to instruments measuring pre-game dispositional goal orientations and perceptions of the motivational climate and post-game task involvement in the competition by assessing concentration, loss of self-consciousness, and autotelic experience, perceptions of coach-initiated motivational climate in competition, and self-evaluation of game performance. In addition, coaches evaluated the players’ performance. Results showed that task involvement was predicted by players’ perceptions of a coach-initiated learning motivational climate in competition. Loss of self-consciousness was predicted by the players’ perceptions of a coach-initiated performance climate in competition. Finally, coaches’ and players’ assessment of performance were predicted by autotelic experience, concentration, and by perception of coach-initiated learning and performance orientation in competition.  相似文献   
203.
Abstract

Recently, it has become apparent that many athletes are exposed to very high volumes of intense training. Sometimes, rather than adapting normally to the training stimulus (i.e., improving in performance), the athlete experiences a reduction in his or her performance capacity. This occurrence has been termed overtraining or a state of staleness. The intent of this review is to characterize the physiological changes found in athletes exposed to overtraining or exhibiting a state of staleness. Changes and responses in five general physiological systems are discussed 1) neuromuscular, 2) cardiovascular, 3) metabolic-endocrine, 4) im-munological, kind 5) kinanthropometric. Perturbations within each of the major physiological systems associated with physical performance have been reported. Inconsistencies, however, exist in the degree and nature of the physiological changes. The present treatment for staleness consists of rest, and in some cases, complete abstention from training and sporting activities may be necessary. Many athletes find such treatment practices extremely undesirable. Unfortunately, until more extensive research examining the physiological changes and responses of the overtrained/stale athlete is conducted, few other recourses appear to exist.  相似文献   
204.
Researchers in the United States have examined spiritual coping in Christians, Jews, Hindus, and Muslims, but rarely Buddhists. Using qualitative methodology, the present study represents an initial investigation into Buddhist forms of coping. Twenty-four Buddhists from across the United States were interviewed by phone, examining how their spirituality is used to cope with stress. Thematic analyses revealed six forms of Buddhist coping—right understanding, meditation, mindfulness, spiritual struggles, morality, and finding support in one's sangha. Implications of the study are discussed, including possibilities for future research on Buddhist coping.  相似文献   
205.
Impulsive and reflective emotionally disturbed children were compared on their perceived locus of control. Contrary to prediction, there were no differences in locus of control for these two groups.  相似文献   
206.
The neural correlates of working memory (WM) in schizophrenia (SZ) have been extensively studied using the multisite fMRI data acquired by the Functional Biomedical Informatics Research Network (fBIRN) consortium. Although univariate and multivariate analysis methods have been variously employed to localize brain responses under differing task conditions, important hypotheses regarding the representation of mental processes in the spatio-temporal patterns of neural recruitment and the differential organization of these mental processes in patients versus controls have not been addressed in this context. This paper uses a multivariate state-space model (SSM) to analyze the differential representation and organization of mental processes of controls and patients performing the Sternberg Item Recognition Paradigm (SIRP) WM task. The SSM is able to not only predict the mental state of the subject from the data, but also yield estimates of the spatial distribution and temporal ordering of neural activity, along with estimates of the hemodynamic response. The dynamical Bayesian modeling approach used in this study was able to find significant differences between the predictability and organization of the working memory processes of SZ patients versus healthy subjects. Prediction of some stimulus types from imaging data in the SZ group was significantly lower than controls, reflecting a greater level of disorganization/heterogeneity of their mental processes. Moreover, the changes in accuracy of predicting the mental state of the subject with respect to parametric modulations, such as memory load and task duration, may have important implications on the neurocognitive models for WM processes in both SZ and healthy adults. Additionally, the SSM was used to compare the spatio-temporal patterns of mental activity across subjects, in a holistic fashion and to derive a low-dimensional representation space for the SIRP task, in which subjects were found to cluster according to their diagnosis.  相似文献   
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209.
Two sources of information most relevant to guide social decision making are the cooperative tendencies associated with different people and their facial emotional displays. This electrophysiological experiment aimed to study how the use of personal identity and emotional expressions as cues impacts different stages of face processing and their potential isolated or interactive processing. Participants played a modified trust game with 8 different alleged partners, and in separate blocks either the identity or the emotions carried information regarding potential trial outcomes (win or loss). Behaviorally, participants were faster to make decisions based on identity compared to emotional expressions. Also, ignored (nonpredictive) emotions interfered with decisions based on identity in trials where these sources of information conflicted. Electrophysiological results showed that expectations based on emotions modulated processing earlier in time than those based on identity. Whereas emotion modulated the central N1 and VPP potentials, identity judgments heightened the amplitude of the N2 and P3b. In addition, the conflict that ignored emotions generated was reflected on the N170 and P3b potentials. Overall, our results indicate that using identity or emotional cues to predict cooperation tendencies recruits dissociable neural circuits from an early point in time, and that both sources of information generate early and late interactive patterns.  相似文献   
210.
Monogamous pair bonds helped solve ancestral problems pertinent to our survival as a species. In order for these pair bonds to succeed, biological systems were co‐opted to support and reinforce attachment bonds through feelings of pleasure and reward. One of the major biological systems that may play an important role in the formation of romantic attachments is the stress response system (autonomic nervous system and hypothalamic–pituitary–adrenal axis). Research suggests attraction, mate preference, and emotional connectedness may be supported by the activation or inhibition of the stress response system. Further, as romantic relationships progress, new findings suggest partners' physiological patterns coalesce, potentially serving a regulatory function that reinforces the pair bond and affects overall well‐being. Based on this evidence, the current paper puts forth the Physiology of Romantic Pair Bond Initiation and Maintenance Model, which will provide researchers with a new perspective on the function of the stress response system in romantic relationships.  相似文献   
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