全文获取类型
收费全文 | 4774篇 |
免费 | 231篇 |
国内免费 | 1篇 |
出版年
2023年 | 26篇 |
2022年 | 35篇 |
2021年 | 55篇 |
2020年 | 78篇 |
2019年 | 105篇 |
2018年 | 134篇 |
2017年 | 160篇 |
2016年 | 184篇 |
2015年 | 116篇 |
2014年 | 154篇 |
2013年 | 602篇 |
2012年 | 245篇 |
2011年 | 251篇 |
2010年 | 159篇 |
2009年 | 143篇 |
2008年 | 219篇 |
2007年 | 190篇 |
2006年 | 187篇 |
2005年 | 173篇 |
2004年 | 167篇 |
2003年 | 150篇 |
2002年 | 132篇 |
2001年 | 90篇 |
2000年 | 84篇 |
1999年 | 71篇 |
1998年 | 67篇 |
1997年 | 62篇 |
1996年 | 56篇 |
1995年 | 53篇 |
1994年 | 40篇 |
1993年 | 50篇 |
1992年 | 55篇 |
1991年 | 43篇 |
1990年 | 43篇 |
1989年 | 36篇 |
1988年 | 41篇 |
1987年 | 31篇 |
1986年 | 24篇 |
1985年 | 43篇 |
1984年 | 40篇 |
1983年 | 31篇 |
1982年 | 45篇 |
1981年 | 33篇 |
1980年 | 23篇 |
1979年 | 34篇 |
1978年 | 24篇 |
1977年 | 26篇 |
1976年 | 18篇 |
1974年 | 25篇 |
1973年 | 18篇 |
排序方式: 共有5006条查询结果,搜索用时 15 毫秒
891.
James P. Hambrick Sandra Pimentel Anne Marie Albano 《Cognitive and behavioral practice》2009,16(2):191-204
Although formal ethics classes provide a basic foundation in managing ethical dilemmas, professionals often point to their experiences on internship as an important training ground for consolidation of their ethical development. Clinical interns face many personal and professional transitions that can lead to a number of ethical dilemmas. Effective collaboration between administrative staff, supervisors, and interns can create a pragmatic model for negotiating these dilemmas. In this paper, issues related to balancing intern competency with training and patient/client needs, managing dual relationships with supervisory staff, and dealing with differences in orientation are addressed from the perspective of both the site and the intern. We also discuss ways in which problems can arise and how both sides can work together systematically to negotiate those problems. To illustrate this process, we discuss cases involving effective collaboration between interns and sites. Finally, the authors assert the need for formal, empirically supported training in classic ethical issues, but also in contemporary ethical issues arising from the ever-evolving field of mental health service delivery and unique challenges accompanying these advances. 相似文献
892.
Katrin Skoruppa Ferran Pons Anne Christophe Laura Bosch Emmanuel Dupoux Núria Sebastián‐Gallés Rita Alves Limissuri Sharon Peperkamp 《Developmental science》2009,12(6):914-919
During the first year of life, infants begin to have difficulties perceiving non‐native vowel and consonant contrasts, thus adapting their perception to the phonetic categories of the target language. In this paper, we examine the perception of a non‐segmental feature, i.e. stress. Previous research with adults has shown that speakers of French (a language with fixed stress) have great difficulties in perceiving stress contrasts ( Dupoux, Pallier, Sebastián & Mehler, 1997 ), whereas speakers of Spanish (a language with lexically contrastive stress) perceive these contrasts as accurately as segmental contrasts. We show that language‐specific differences in the perception of stress likewise arise during the first year of life. Specifically, 9‐month‐old Spanish infants successfully distinguish between stress‐initial and stress‐final pseudo‐words, while French infants of this age show no sign of discrimination. In a second experiment using multiple tokens of a single pseudo‐word, French infants of the same age successfully discriminate between the two stress patterns, showing that they are able to perceive the acoustic correlates of stress. Their failure to discriminate stress patterns in the first experiment thus reflects an inability to process stress at an abstract, phonological level. 相似文献
893.
Joceline Rogé Sarah Otmani Anne Bonnefond Thierry Pébayle Alain Muzet 《Transportation Research Part F: Traffic Psychology and Behaviour》2009,12(2):143-154
The objectives of this study are to analyze the effect of a short nap on the level of alertness and on the drivers’ ability to detect the motorcyclists on the road according to the size of his/her useful visual field (UVF).Nineteen participants (m = 21 years old) carried out a driving task with a simulator, after taking a short nap (30 min) in the vehicle or not. They had to distinguish the colour change of a signal on a vehicle they were following and to detect a motorcycle which briefly appeared on the road at different eccentricities.Drivers with a limited UVF are those who detect the fewest motorcycles. Taking a short nap before the driving does not have any significant effect on data related to vision (motorcycles and signals detected), driving and alertness state ((α+θ)/β). There is a linear relationship between the size of the UVF and the ability to detect the motorcycle appearing in the left outside mirror.The implications of the results concerning the short nap as a countermeasure to a decrease in alertness and the perception of motorcycles according to extent of the useful visual field of the driver are discussed in terms of road safety. 相似文献
894.
895.
896.
897.
- In an experiment conducted in South Africa, we show that perceptual differences between the self and other that underlie third person effects have not only magnitude (e.g., third person effects increase as perceived self‐other differences increase), but also valence. Specifically, individuals contrast themselves against lower status others, resulting in greater third person effects, but compare themselves favorably with higher status others, resulting in smaller third person effects. High status others serve as a norm against which people gauge their own and others' responsiveness to persuasion attempts like advertising. Implications for third person effects, status and the construal of the ‘other,’ and the socio‐cultural context of advertising are discussed. Additionally, we describe managerial considerations regarding branding and target marketing that diverge from Western assumptions about persuasion knowledge and receptivity toward advertising.
898.
We report an empirical study on leaf-carrying, a newly discovered nest-building technique that involves collecting nest materials
before reaching the nest site. We assessed whether leaf-carrying by rehabilitant orangutans on Kaja Island, Central Kalimantan,
owes to cultural influences. Findings derive from ca 600 h observational data on nesting skills and nesting associations in
Kaja’s 42 resident rehabilitants, which yielded 355 nests and 125 leaf-carrying cases by 34 rehabilitants. Regional contrasts
with 14 other communities (7 rehabilitant, 7 wild) indicated cultural influences on leaf-carrying on Kaja. Association data
showed exceptional social learning opportunities for leaf-carrying on Kaja, with residents taking differential advantage of
these opportunities as a function of development, experience, and social position. Juvenile males with basic nesting skills
were most influenced by social input. Most (27) leaf-carriers had probably learned leaf-carrying when caged and 7 probably
learned it on Kaja. Social priming was probably the main impetus to leaf-carrying on Kaja, by simply prompting observers to
copy when leaf-carrying associates collected nesting materials, what they collected, and where they used their collected materials. Implications concern acquisition processes and ontogenetic schedules that orchestrate
sets of features—needs or interests, cognitive abilities, social preferences—which enable cultural transmission. 相似文献
899.
The role of conscious cognitive processes in human affective conditioning remains controversial, with several theories arguing that such conditioning can occur without awareness of the conditioned stimulus (CS)-unconditioned stimulus (UCS) contingency. One specific type of affective conditioning in which unaware conditioning is said to occur is "evaluative conditioning." The present experiment tested the role of contingency awareness by embedding an evaluative conditioning paradigm in a distracting masking task while obtaining, in addition to subjective ratings of affect, both psychophysiological (skin conductance and startle eyeblink) and indirect behavioral (affective priming) measures of conditioning, along with a trial-by-trial measure of awareness from 55 college student participants. Aware participants showed conditioning with all of the measures; unaware participants failed to show conditioning with all measures. The behavioral, neurophysiological, and therapeutic implications of these findings are discussed. 相似文献
900.