全文获取类型
收费全文 | 2479篇 |
免费 | 98篇 |
国内免费 | 1篇 |
出版年
2023年 | 20篇 |
2022年 | 14篇 |
2021年 | 22篇 |
2020年 | 49篇 |
2019年 | 61篇 |
2018年 | 84篇 |
2017年 | 71篇 |
2016年 | 67篇 |
2015年 | 66篇 |
2014年 | 56篇 |
2013年 | 256篇 |
2012年 | 98篇 |
2011年 | 96篇 |
2010年 | 71篇 |
2009年 | 55篇 |
2008年 | 82篇 |
2007年 | 92篇 |
2006年 | 82篇 |
2005年 | 52篇 |
2004年 | 70篇 |
2003年 | 44篇 |
2002年 | 47篇 |
2001年 | 121篇 |
2000年 | 117篇 |
1999年 | 75篇 |
1998年 | 17篇 |
1997年 | 28篇 |
1996年 | 22篇 |
1994年 | 18篇 |
1992年 | 40篇 |
1991年 | 54篇 |
1990年 | 41篇 |
1989年 | 42篇 |
1988年 | 42篇 |
1987年 | 28篇 |
1986年 | 18篇 |
1985年 | 23篇 |
1984年 | 22篇 |
1983年 | 18篇 |
1981年 | 15篇 |
1979年 | 20篇 |
1976年 | 15篇 |
1975年 | 13篇 |
1974年 | 16篇 |
1973年 | 16篇 |
1971年 | 17篇 |
1970年 | 14篇 |
1969年 | 15篇 |
1968年 | 16篇 |
1967年 | 16篇 |
排序方式: 共有2578条查询结果,搜索用时 15 毫秒
801.
Negative attributional style has been associated with depressive symptoms in children. Yet, it is unclear whether these cognitive biases reflect inherited characteristics of the broader depressive phenotype or are a product of children's environments. While existing data in adolescents show that negative attributions reflect a genetic predisposition, elevating depressive responses to stress, other data suggest that negative attributions in children are more likely to reflect early environmental experiences on symptoms. Here, we assess the degree to which negative attributional style and depressive symptoms arise from common genetic, shared and non-shared environmental influences in childhood. Monozygotic and dizygotic twins reported on attributional style and depressive symptoms at age 8 (n = 300 pairs) and at age 10 (n = 250 pairs). Two multivariate models with varying assumptions on the nature of the relationship between negative attributions and depressive symptoms within and across time were fit to the data. The Common Pathway model provided better fit than the Cholesky decomposition. A common, latent factor influenced both attributional style and depressive symptoms at both time-points in children. The only significant influences on this factor were shared and non-shared aspects of the environment. Placing the present findings with those of adolescents suggests possible developmental differences in the relationship between attributional style and depressive symptoms. 相似文献
802.
Boeldt DL Rhee SH Dilalla LF Mullineaux PY Schulz-Heik RJ Corley RP Young SE Hewitt JK 《Infant and child development》2012,21(1):85-106
The present study examined the role of positive parenting on externalizing behaviors in a longitudinal, genetically informative sample. It often is assumed that positive parenting prevents behavior problems in children via an environmentally mediated process. Alternatively, the association may be due to either an evocative gene-environment correlation, in which parents react to children's genetically-influenced behavior in a positive way, or a passive gene-environment correlation, where parents passively transmit a risk environment and the genetic risk factor for the behavioral outcome to their children. The present study estimated the contribution of these processes in the association between positive parenting and children's externalizing behavior. Positive parenting was assessed via observations at ages 7, 9, 14, 24, and 36 months and externalizing behaviors were assessed through parent report at ages 4, 5, 7, 9, 10, 11, and 12 years. The significant association between positive parenting and externalizing behavior was negative, with children of mothers who showed significantly more positive parenting during toddlerhood having lower levels of externalizing behavior in childhood; however, there was not adequate power to distinguish whether this covariation was due to genetic, shared environmental, or nonshared environmental influences. 相似文献
803.
Richard Rogers Ph.D. Chelsea E. Fiduccia M.S. Emily V. Robinson M.S. Jennifer A. Steadham M.S. Eric Y. Drogin J.D. Ph.D. 《Behavioral sciences & the law》2013,31(4):397-410
In Miranda v. Arizona (1966), the Supreme Court of the United States required that custodial suspects be apprised of their Constitutional rights against self‐incrimination. The Court could not have anticipated the rampant popularization of Miranda warnings in subsequent movies and television dramas. Influenced by public media, many arrestees assume that they already “know” their rights, with no awareness of their misconceptions. The current investigation examines whether repeated exposures to Miranda warnings performs any “curative” function (i.e., dispelling common Miranda misconceptions held by pretrial defendants). The accumulative effects of five different Miranda warnings were tested over a several‐hour period on 260 detainees. For the nearly half (113 or 43.5%) with three or more misconceptions, improvement (i.e., ≥2 fewer misconceptions) occurred for only 35 defendants. Predictably, this improved group also tended to display a better understanding of Miranda‐relevant vocabulary words and a better recall of the administered Miranda warnings than their unimproved counterparts. On average, the improved group also performed better on general measures of intelligence, and listening and reading comprehension, while still evidencing substantial cognitive deficits. The curative function of Miranda advisements is considered in light of these findings. Copyright © 2013 John Wiley & Sons, Ltd. 相似文献
804.
René Y. Darmon 《Journal of Personal Selling & Sales Management》2013,33(2):14-23
AbstractA procedure for estimating a salesperson's long-run profit performance is proposed. Based on historical personnel and accounting data, it takes into account the flows of revenues and costs that a company is likely to experience when a “typical” salesperson of a prespecified profile is kept on territory. In the reported case study, salesmen with a degree in liberal arts (and to some extent in the sciences) and previous non-sales experience could be identified as the best long-run profit producers. The results showed important differences with the conclusions of a more conventional analysis which emphasized short-run sales performance. 相似文献
805.
Abstract Two forms of understanding in theories of therapy are identified: empathic understanding rooted in individualism, and reality-based understanding that acknowledges the relational character of human existence. We argue for regarding these two forms of understanding as complementary. This requires a paradigmatic shift from methodological individualism to methodological relationalism, which asserts that the analysis of role relationships precedes that of individuals and situations. Informed by methodological relationalism, dialogic action therapy accords prominence to the creation of a therapeutic relationship between therapist and client, between whom bidirectionality of perceptions is inherent. We develop a formal analytic scheme for theory building. Six major constructs, degrees of perception, directionality, agreement, reciprocity, accuracy, and congruence, are employed to facilitate the analysis of therapist and client perceptions and metaperceptions of trust in depth. The implications for therapy and methodology of measurement are discussed. 相似文献
806.
It is often said that contemporary students frequently study while ‘multitasking’. However, this rather diffuse term encompasses situations that vary as to the whether the learner controls the pace at which educational materials are provided. On the basis of prior cognitive research, we hypothesize that this may well be a critical determinant of interference. Three studies required students to read or listen to several short historical narratives and also to engage in five to eight very short conversations (akin to an instant messaging conversation). In Experiment 1, subjects read the narratives; here, multitasking marginally increased total time spent reading the narratives, especially when it occurred at random times. However, final memory for the narratives was not significantly affected. Similar results were obtained when the narratives were presented in audio format and the learner could pause them while conversing (Experiment 2). By contrast, when audio narratives did not pause, interruptions reduced comprehension performance (Experiment 3). Copyright © 2013 John Wiley & Sons, Ltd. 相似文献
807.
Most theories of motivation and behavior (and lay intuitions alike) consider pain and effort to be deterrents. In contrast to this widely held view, we provide evidence that the prospect of enduring pain and exerting effort for a prosocial cause can promote contributions to the cause. Specifically, we show that willingness to contribute to a charitable or collective cause increases when the contribution process is expected to be painful and effortful rather than easy and enjoyable. Across five experiments, we document this “martyrdom effect,” show that the observed patterns defy standard economic and psychological accounts, and identify a mediator and moderator of the effect. Experiment 1 showed that people are willing to donate more to charity when they anticipate having to suffer to raise money. Experiment 2 extended these findings to a non‐charity laboratory context that involved real money and actual pain. Experiment 3 demonstrated that the martyrdom effect is not the result of an attribute substitution strategy (whereby people use the amount of pain and effort involved in fundraising to determine donation worthiness). Experiment 4 showed that perceptions of meaningfulness partially mediate the martyrdom effect. Finally, Experiment 5 demonstrated that the nature of the prosocial cause moderates the martyrdom effect: the effect is strongest for causes associated with human suffering. We propose that anticipated pain and effort lead people to ascribe greater meaning to their contributions and to the experience of contributing, thereby motivating higher prosocial contributions. We conclude by considering some implications of this puzzling phenomenon. Copyright © 2011 John Wiley & Sons, Ltd. 相似文献
808.
Adrienne Y. Lee Gary D. Bond Deborah C. Russell Jeremy Tost Carlo González Pamela S. Scarbrough 《Military psychology》2013,25(3):237-261
Antecedents to trust (propensity to trust, perceived trustworthiness) and trust behaviors were examined in relation to team performance in a complex eight-mission military peacekeeping simulation. Teams were colocated or distributed and stayed in the same or transferred to a different context at task transfer. In Experiment 1, an ability and competence factor accounted for most of the variance in perceived trustworthiness and greater perceptions of teammates' abilities/competences predicted posttransfer performance. One's perception of how others perceived one's ability/competence increased over missions. In Experiment 2, propensity to trust did not predict performance; however, trust in others' and one's own ability/competence and trust behaviors predicted performance. At task and/or context transfer, teams produced more monitoring and less cooperating language in their communication. 相似文献
809.
Clara Chavez-Arana Cathy Catroppa Guillermina Yáñez-Téllez Belén Prieto-Corona Miguel A. de León Antonio García 《Child neuropsychology》2013,19(8):1125-1143
Background: Children with acquired brain injury (ABI) present with high rates of psychological disorders commonly accompanied by deficits in hot and cold executive functions (EFs). Impairments in EFs have been reported to precede mental health problems. Moreover, children who are vulnerable to developing mental health problems in adulthood frequently present with a dysregulation profile in childhood, characterized by impairments in cognitive, behavioral and emotional regulation. Objective: To identify profiles of behaviors associated with impairment in hot and cold EFs and compare injury factors, environmental stressors and dysregulation profile between them. Methods: A latent profile analysis was conducted with 77 children with ABI aged between 6 and 12. Injury factors, child IQ, environmental stressors and the dysregulation profile were compared between these behavioral profiles. Logistic regressions were conducted to predict profile membership. Results: Two profiles were identified: Profile M, with mild deficits (1–2 SD above the mean) in working memory and social skills, and profile C, presenting clinically significant deficits (2–3 SD above the mean) in shift, initiate, working memory, planning and social skills and mild deficits in inhibit, emotional control and task monitor. Proximal environmental stressors (dysfunctional parenting practices, parental stress, parent’s executive dysfunction, anxiety-trait, and depressive symptoms) and dysregulation symptoms predicted profile membership, whereas injury factors, child IQ and distal environmental stressors did not. Conclusion: Following ABI, children with profile C are at risk of mental health problems and present with more proximal stressors. The dysregulation profile may be useful as a proxy for risk for later mental health problems in children with ABI. 相似文献
810.
Based on systematic surface observations, experimental measurements on the fatigue limits of differently oriented copper single crystals cyclically deformed at constant plastic strain amplitudes are summarized, and an orientation dependence of the fatigue limit is sketched. It was found that the fatigue limits of crystals depend mainly upon the low-strain-amplitude dislocation structures, which are characteristic of the particular crystal orientations. When multiple-slip deformation is the main mode of deformation and ultimately produces stable lowenergy dislocation structures such as labyrinth and cell structures, the fatigue limit can be improved notably. 相似文献