全文获取类型
收费全文 | 6670篇 |
免费 | 219篇 |
专业分类
6889篇 |
出版年
2021年 | 57篇 |
2020年 | 113篇 |
2019年 | 133篇 |
2018年 | 172篇 |
2017年 | 218篇 |
2016年 | 216篇 |
2015年 | 160篇 |
2014年 | 188篇 |
2013年 | 744篇 |
2012年 | 305篇 |
2011年 | 328篇 |
2010年 | 210篇 |
2009年 | 215篇 |
2008年 | 266篇 |
2007年 | 284篇 |
2006年 | 241篇 |
2005年 | 235篇 |
2004年 | 228篇 |
2003年 | 201篇 |
2002年 | 213篇 |
2001年 | 105篇 |
2000年 | 114篇 |
1999年 | 107篇 |
1998年 | 92篇 |
1997年 | 85篇 |
1996年 | 95篇 |
1995年 | 87篇 |
1994年 | 78篇 |
1993年 | 63篇 |
1992年 | 82篇 |
1991年 | 61篇 |
1990年 | 52篇 |
1989年 | 52篇 |
1988年 | 53篇 |
1987年 | 43篇 |
1986年 | 47篇 |
1985年 | 63篇 |
1984年 | 59篇 |
1983年 | 51篇 |
1982年 | 72篇 |
1981年 | 71篇 |
1980年 | 54篇 |
1979年 | 52篇 |
1978年 | 44篇 |
1977年 | 71篇 |
1976年 | 41篇 |
1975年 | 50篇 |
1974年 | 42篇 |
1973年 | 45篇 |
1972年 | 36篇 |
排序方式: 共有6889条查询结果,搜索用时 15 毫秒
831.
Peter Singer 《Journal of Global Ethics》2016,12(2):161-169
Anthony Skelton, Violetta Igneski and Tracy Isaacs share my view that our obligations to help people in extreme poverty go beyond what is conventionally accepted. Nevertheless, the other contributors argue that my view is too demanding, while noting some tensions between my different writings on this issue. I explain my position, drawing on Sidgwick’s distinction between what someone ought to do, and what we should praise or blame someone for doing or not doing. I also respond to the position that Skelton considers preferable to mine, drawing this time on an argument that Katarzyna de Lazari-Radek and I have made in our recent book, The Point of View of the Universe. I also address Igneski’s concerns about gender inequality, and indicate my broad agreement with Isaacs’ suggestion that effective altruism could benefit from a more co-ordinated approach. 相似文献
832.
Like most own-group biases in face recognition, the own-age bias (OAB) is thought to be based either on perceptual expertise or socio-cognitive motivational mechanisms [Wolff, N., Kemter, K., Schweinberger, S. R., &; Wiese, H. (2013). What drives social in-group biases in face recognition memory? ERP evidence from the own-gender bias. Social Cognitive and Affective Neuroscience. doi:10.1093/scan/nst024]. The present study employed a recognition paradigm with eye-tracking in order to assess whether participants actively viewed faces of their own-age differently to that of other-age faces. The results indicated a significant OAB (superior recognition for own-age relative to other-age faces), provided that they were upright, indicative of expertise being employed for the recognition of own-age faces. However, the eye-tracking results indicate that viewing other-age faces was qualitatively different to the viewing of own-age faces, with more nose fixations for other-age faces. These results are interpreted as supporting the socio-cognitive model of the OAB. 相似文献
833.
834.
Melissa Swisher Peter J. Urcuioli 《Journal of the experimental analysis of behavior》2015,104(2):119-132
835.
Michael Rönnlund Peter Vestergren Andreas Stenling Lars‐Göran Nilsson Maud Bergdahl Jan Bergdahl 《Scandinavian journal of psychology》2015,56(5):592-598
We investigated the factorial structure of the Perceived Stress Questionnaire (PSQ‐recent; Levenstein, Prantera, Varvo et al., 1993) in a large (N = 1516; 35–95 years) population‐based Swedish sample (Nilsson, Adolfsson, Bäckman et al., 2004; Nilsson, Bäckman, Erngrund et al., 1997). Exploratory principal components analysis (PCA) was conducted on a first, randomly drawn subsample (n = 506). Next, the model based on the PCA was tested in a second sample (n = 505). Finally, a third sample (n = 505) was used to cross‐validate the model. Five components were extracted in the PCA (eigenvalue > 1) and labeled “Demands,” “Worries/Tension,” “Lack of joy,” “Conflict,” and “Fatigue,” respectively. Twenty‐one out of the 30 original PSQ items were retained in a confirmatory factor analysis (CFA) model that included the five (first‐order) factors and, additionally, a general (second‐order) stress factor, not considered in prior models. The model showed reasonable goodness of fit [χ2(184) = 511.2, p < 0.001; CFI = 0.904; RMSEA = 0.059; and SRMR = 0.063]. Multigroup confirmatory factor analyses supported the validity of the established model. The results are discussed in relation to prior investigations of the factorial structure of the PSQ. 相似文献
836.
837.
This study investigated the influences of social comparisons on group polarization in decision making among members of selected Kenyan secondary school disciplinary panels. Ten participants from 10 selected secondary school disciplinary panels were involved. Semi-structured interviews were used to collect qualitative data on the experiences of the participants regarding the influences of social comparisons on their decision-making behaviours during participation in their schools’ disciplinary hearing meetings. The results revealed that in the dynamic interactions among disciplinary panel members during disciplinary hearing meetings, the panel members engaged in social comparisons among themselves, leading to their shifts in decision-making behaviours in favour of consensus in group decisions or group polarization in decision making. 相似文献
838.
Alison C. Bowling Peter Lindsay Belinda G. Smith Kerri Storok 《Neuropsychology, development, and cognition. Section B, Aging, neuropsychology and cognition》2013,20(2):201-219
Older adults appear to have greater difficulty ignoring distractions during day-to-day activities than younger adults. To assess these effects of age, the ability of adults aged between 50 and 80 years to ignore distracting stimuli was measured using the antisaccade and oculomotor capture tasks. In the antisaccade task, observers are instructed to look away from a visual cue, whereas in the oculomotor capture task, observers are instructed to look toward a colored singleton in the presence of a concurrent onset distractor. Index scores of the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) were compared with capture errors, and with prosaccade errors on the antisaccade task. A higher percentage of capture errors were made on the oculomotor capture tasks by the older members of the cohort compared to the younger members. There was a weak relationship between the attention index and capture errors, but the visuospatial/constructional index was the strongest predictor of prosaccade error rate in the antisaccade task. The saccade reaction times (SRTs) of correct initial saccades in the oculomotor capture task were poorly correlated with age, and with the neurospsychological tests, but prosaccade SRTs in both tasks moderately correlated with antisaccade error rate. These results were interpreted in terms of a competitive integration (or race) model. Any variable that reduces the strength of the top-down neural signal to produce a voluntary saccade, or that increases saccade speed, will enhance the likelihood that a reflexive saccade to a stimulus with an abrupt onset will occur. 相似文献
839.
The aim of this paper was to understand why some people experience certain emotions in a specific situation, whereas others do not. We postulate that these individual differences arise from individual differences in two underlying processes of emotion elicitation: (i) individual differences in the emotion components (appraisals and action tendencies) that situations activate in a person and (ii) individual differences in how these emotion components are related to subjective emotional experience. In this paper, we re‐analysed data from two studies on anger to capture the structure of these two types of individual differences by using clustering modelling techniques. Consistent results across the two studies demonstrated that individuals differ in anger because they (i) differ in how easy they experience anger‐relevant appraisals (Studies 1 and 2) and action tendencies (Study 2) in increasingly negative situations and (ii) differ in which of these components are necessary to experience anger. Copyright © 2011 John Wiley & Sons, Ltd. 相似文献
840.
Peter Singer 《Journal of applied philosophy》2016,33(1):31-35
In Animal Liberation I argued that we commonly ignore or discount the interests of sentient members of other species merely because they are not human, and that this bias in favour of members of our own species is, in important respects, parallel to the biases that lie behind racism and sexism. Shelly Kagan, in ‘What's Wrong With Speciesism’ misconstrues this argument, as well as the principle of equal consideration of interests, which I offer as an alternative to speciesism. Kagan also offers, as an alternative explanation of, and possible justification for, our discounting the interests of nonhuman animals, the suggestion that your interests count more if you are a member of a species whose typical adult members are persons. Although this view is not a form of speciesism, Kagan seems not to be aware of the fact that it is a view commonly defended by advocates of natural law ethics, on which there is already an extensive critical literature. 相似文献