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941.
Two studies were conducted to examine the link between employee perceptions of the psychological contract and their affective and normative commitments to the organization. The authors adapt a new approach to the study of psychological contracts by developing a generalizable measure of contract features (e.g., scope; time frame). In Study 1 (N = 301), the authors predicted and found that employees’ perceptions of the contract’s features contributed beyond perceptions of contract type (i.e., transactional; relational) and fulfillment to the prediction of affective and normative commitment. In Study 2 (N = 147), the features measure was refined and results from the first study were largely replicated. In both studies, affective and normative commitment were greater when employees viewed the contract as broad, trust-based, equal, negotiated, tangible, and long-term, and weaker when they saw it as unequal, imposed, and short-term. We also found evidence for patterns of features that correspond to transactional and relational contracts, as well as to recently proposed balanced contracts and I-Deals. Implications for theory and the management of psychological contracts are discussed.  相似文献   
942.
Children and adults commonly produce more generic noun phrases (e.g., birds fly) about animals than artifacts. This may reflect differences in participants’ generic knowledge about specific animals/artifacts (e.g., dogs/chairs), or it may reflect a more general distinction. To test this, the current experiments asked adults and preschoolers to generate properties about novel animals and artifacts (Experiment 1: real animals/artifacts; Experiments 2 and 3: matched pairs of maximally similar, novel animals/artifacts). Data demonstrate that even without prior knowledge about these items, the likelihood of producing a generic is significantly greater for animals than artifacts. These results leave open the question of whether this pattern is the product of experience and learned associations or instead a set of early-developing theories about animals and artifacts.  相似文献   
943.
Frequency trajectory is a better measure to investigate age-limited learning effects than age of acquisition (AoA) ratings (Zevin, J. D., & Seidenberg, M. S. (2002). Age of acquisition effects in word reading and other tasks. Journal of Memory and Language, 47(1), 1-29). The current study uses frequency trajectory as a variable to investigate age-limited learning effects in Chinese character recognition, and tests predictions of the arbitrary mapping hypothesis as applied in a non-alphabetic writing system. In Experiment 1, regression analyses showed that, compared to rated AoA, frequency trajectory of characters was less affected by other lexical properties, and could explain a significant proportion of variance of AoA. In Experiment 2, the frequency trajectory and predictability from orthography to pronunciation of characters were orthogonally manipulated in a character naming task. The frequency trajectory effect appeared only for the arbitrary mapping condition. In Experiment 3, frequency trajectory and predictability from orthography to meaning of characters were manipulated in a semantic category judgment task. The frequency trajectory effects were found only when the mapping from orthography to semantic is less consistent. In summary, the study confirmed that AoA is a genuine factor affecting word processing, and the AoA effects were limited to those situations in which mapping between input and output representation was arbitrary. These results provide strong cross-linguistic evidence in support of the arbitrary mapping hypothesis.  相似文献   
944.
Abstract We used an experience sampling methodology to explore the relationship between current symptoms of dysphoria and momentary mood fluctuations following everyday experiences of anger. Using PDA devices, participants rated their mood, ruminative cognitions, feelings of dependency, and stressful events 4 times per day for 1 week. We hypothesized and found that those higher in dysphoria would demonstrate a stronger link between anger and depressed mood than those who were lower in dysphoria. Those participants who reported higher initial dysphoria indicated more anger over the course of the week, a stronger within-person association between anger and depressed mood, and a slower recovery from anger experiences. Multilevel moderated mediation analyses indicated that the link between anger and depressed mood for those high in dysphoria is largely explained by a stronger carryover of anger from one assessment to the next and partially explained by greater increases in ruminative cognitions and feelings of dependency. The change in depressed mood appears to occur with increases in anger, specifically, and not other negative mood states. Our results extend previous research on the anger–depression relationship by investigating the short-term relationships between anger and depressed mood among those with varying levels of dysphoria.  相似文献   
945.
Charles Darwin's theory of natural selection, now established, is the only workable explanation we have for the remarkable fact of our own existence, the vast diversity of plant and animal life, the compelling illusion of design in nature, and the architecture of the human mind. We are risen apes, not fallen angels. Our different races and ethnicities hide an essential truth: we are all Africans, all siblings, all descendants of a small group of hunter-gatherers who arose in Africa less than 200,000 years ago and conquered the world. There is one universal human nature stemming from our long history as Pleistocene hunter-gatherers. We now know why religion appeared, why particular religious ideas emerged, why they are widespread, why they are recurrent features of human minds and human societies, why they are attractive to human minds, and how and why they are related to survival and deadly violence. What makes us human can also make us religious. Religion is a by-product of cognitive mechanisms that evolved, through natural selection, for other adaptive purposes that were crucial for our survival and reproductive success. Religion's power derives from its ability to utilize these mental mechanisms designed for other tasks: our attachment to parental figures, our wish for help in distress, submission to authority, our sensitivity to hierarchies, our love of kin, and our inclination to see human-like intention as the explanation for any unknown. All individuals are vulnerable to religious beliefs and assuming a religious identity. Religious identity is an accident of geographical birth, is certainly one of the most prevalent identities, and the most at odds with the reality of who we are. It remains one of the most destructive identities we can assume. As long as we tolerate the divisive pretensions of religious beliefs and identities, especially those of the three great Abrahamic faiths, we will all remain in the line of fire.  相似文献   
946.
The Tripartite Model proposes that a combination of greater Negative Affect (NA) and reduced Positive Affect (PA) contributes to depressive symptoms. The purpose of this study was to test a model of affective experience in which cognitive variables (i.e., negative cognitions and appraisals) are uniquely related to NA but not PA, and in which behavioral variables (i.e., activity participation) are uniquely associated with PA but not NA. Participants included 88 spousal Alzheimer caregivers (mean age = 74 years). Multiple regression models, in which negative cognitions (i.e., helplessness, blames self, and negative appraisals) and activity participation (i.e., frequency of engaging in social and recreational activities) were used to predict depressive symptoms, PA and NA. Results indicated that while helplessness, blaming oneself, negative appraisals, and activity participation all significantly predicted depressive symptoms, only negative cognitive variables significantly predicted NA, and only activity participation significantly predicted PA. These data confirm that depressive experience consists of two relatively independent components - increased Negative Affect and reduced Positive Affect - which have unique correlates in negative cognitions and activity participation. If confirmed, the findings suggest the utility of focusing interventions on each of these components in the management of depressive symptoms.  相似文献   
947.
By borrowing from the biopsychosocial model of challenge and threat, we may understand when health communications adequately motivate behavior change or when they are overly distressing and inhibit behavior change. The present studies were guided by the biobehavioral model of persuasion, which predicts that different health appeals should evoke different appraisals, as well as psychological and physiological responses that motivate the adoption or rejection of health behaviors. Challenging messages should be associated with approach motivational tendencies, whereas threatening messages should be linked to avoidance. Findings from 2 experiments support the biobehavioral model of persuasion and offer mechanisms that confer message effectiveness. By understanding the psychological and physiological processes that drive message effectiveness, message designers can create more effective health appeals.  相似文献   
948.
The present studies compare young children's explanations and predictions for the biological phenomenon of contamination. In Study 1, 36 preschoolers and 24 adults heard vignettes concerning contamination, and were asked either to make a prediction or to provide an explanation. Even 3-year-olds readily supplied contamination-based explanations, and most children mentioned an unseen mechanism (germs, contact through bodily fluids). Moreover, unlike adults who performed at ceiling across both explanation and prediction tasks, children were significantly more accurate with their explanations than their predictions. In Study 2, we varied the strength of cues regarding the desirability of the contaminated substance (N=24 preschoolers). Although desirability affected responses, for both levels of desirability participants were significantly more accurate on explanation than prediction questions. Altogether, these studies demonstrate a significant "explanation advantage" for children's reasoning in the domain of everyday biology.  相似文献   
949.
950.
We determined whether effects of neighborhood socioeconomic disadvantage on trajectories of aggression were moderated or mediated by neighborhood social organization and examined sex differences in neighborhood effects for rural adolescents. We used five waves of survey data collected over 2.5 years linked with neighborhood data from interviews with parents and the US Census. The sample (N = 5,118) was 50.1% female, 52.0% white and 38.3% African–American; average age at baseline was 13.1 years. Multilevel growth curve models for both girls and boys showed no significant interactions between neighborhood socioeconomic disadvantage and indicators of social organization. Neither sample showed evidence of mediated effects. In main effects models, neighborhood disadvantage was associated with the average aggression trajectory for girls. For boys, the effects of neighborhood socioeconomic disadvantage and social disorganization appeared to be confounded with each other. Neighborhood disadvantage is detrimental for rural girls regardless of the level of social organization.  相似文献   
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