全文获取类型
收费全文 | 4669篇 |
免费 | 230篇 |
国内免费 | 4篇 |
出版年
2023年 | 64篇 |
2022年 | 57篇 |
2021年 | 96篇 |
2020年 | 133篇 |
2019年 | 117篇 |
2018年 | 178篇 |
2017年 | 203篇 |
2016年 | 189篇 |
2015年 | 133篇 |
2014年 | 151篇 |
2013年 | 541篇 |
2012年 | 272篇 |
2011年 | 228篇 |
2010年 | 170篇 |
2009年 | 150篇 |
2008年 | 206篇 |
2007年 | 213篇 |
2006年 | 149篇 |
2005年 | 135篇 |
2004年 | 114篇 |
2003年 | 104篇 |
2002年 | 97篇 |
2001年 | 95篇 |
2000年 | 89篇 |
1999年 | 65篇 |
1998年 | 45篇 |
1997年 | 31篇 |
1996年 | 34篇 |
1995年 | 30篇 |
1994年 | 25篇 |
1993年 | 23篇 |
1992年 | 34篇 |
1991年 | 30篇 |
1990年 | 37篇 |
1989年 | 36篇 |
1988年 | 24篇 |
1987年 | 31篇 |
1986年 | 29篇 |
1985年 | 28篇 |
1984年 | 31篇 |
1983年 | 22篇 |
1981年 | 25篇 |
1979年 | 35篇 |
1976年 | 27篇 |
1975年 | 25篇 |
1974年 | 33篇 |
1973年 | 24篇 |
1971年 | 22篇 |
1970年 | 22篇 |
1968年 | 23篇 |
排序方式: 共有4903条查询结果,搜索用时 15 毫秒
61.
Shuang Wang Alexander S. English Yue Deng Ye Zi Zhou Emma E. Buchtel 《Social and Personality Psychology Compass》2023,17(12):e12903
In the pandemic era, social media has provided the public with a platform to make their voice heard. One of the most important public opinions online during a pandemic is blame. Blame can lead to stigma towards patients as well as potential patients and decrease social cooperation, which might impede prevention and control measures during epidemics. Thus, studying online blame during the early days of COVID-19 can facilitate the management and control of future pandemics. By analyzing 3791 posts from one of the most popular social media sites in China (Weibo) over the 10 days immediately after COVID-19 was declared to be a communicable disease, we found that there were four main agents blamed online: Individuals, corporations, institutions, and the media. Most of the blame targeted individual agents. We also found that there were regional-cultural differences in the detailed types of blamed individual agents, that is, between rice- and wheat-farming areas in China. After controlling influence of distance from the epicenter of Wuhan, there were still stable differences between regions: people in wheat areas had a higher probability of blaming agentic, harmful individuals, and people in rice areas had a higher probability of blaming individuals with low awareness of social norms for preventive health behavior. Findings have implications for preventing and predicting blame across cultures in future pandemics. 相似文献
62.
Communication of criticism between groups is important to productive societal discourse, but may serve to inflame conflict. The defensive rejection of intergroup, relative to intragroup, criticism (intergroup sensitivity effect [ISE]) may contribute to such divides. The ISE has been observed in self-report measures, but such measures are weak and biased predictors of actual (divisive) behavior. We review recent research demonstrating that the ISE does have costly behavioral consequences. We next consider the debate concerning whether the ISE reflects defense of a valued social identity or enforcement of a conversational norm. We therefore review recent evidence for an ISE among individuals lacking identification with the target of the criticism. Third, we examine how the ISE may affect a variety of behaviors relevant to societal divisions, including political reconciliation, environmental sustainability, and vaccination. Lastly, we outline future research that can clarify the underlying mechanisms of the ISE and promote conciliatory intergroup behavior. 相似文献
63.
Fantino E Squires N Delbrück N Peterson C 《Journal of the experimental analysis of behavior》1972,18(1):35-43
In Experiment 1, matching of relative response rates to relative rates of reinforcement was obtained in concurrent variable-interval schedules when the absolute values of the two concurrent variable-interval schedules varied from 6 sec and 12 sec to 600 sec and 1200 sec. Increases in the duration of the changeover delay, however, produced decreases in the relative response rates and, consequently, some deviation from matching. In Experiment 2, matching of relative response rates to the relative duration of the reinforcer failed to occur when the equal variable-interval schedules arranging access to the two different reinforcer durations (1.5 and 6 sec) were varied in size from concurrent variable-interval 10-sec schedules to concurrent variable-interval 600-sec schedules. 相似文献
64.
Recall of complex sentences at two retention intervals was examined, using sentences which varied simultaneously in three ways, being either active or passive, of low or high Yngve depth, and predictable or unpredictable. Recall of any particular sentence was cued with either the logical subject, logical object, verb or adverbial phrase noun. In general, unpredictable sentences were recollected better than predictable ones, low Yngve depth sentences were recalled better than high Yngve depth ones, and passive sentences were retained better than active ones. The most effective cue was the object, followed in turn by the subject and the adverbial phrase noun, with the verb being least effective. Implications of these findings are discussed. 相似文献
65.
Gisela Müller 《Psychological research》1970,34(1):10-47
Zusammenfassung Mit Hilfe von Korrelationsmethoden wurden inter-individuelle Leistungsunterschiede in einer ein- und einer mehrflächigen Vigilanzaufgabe untersucht. In beiden Aufgaben korrelieren bestimmte Vigilanzscores mit Interferenzindikatoren im Stroop-Versuch. In der mehrflächigen Anordnung zeigte sich eine negative Korrelation zwischen der Entdeckungswahrscheinlichkeit und der Rate der falschen Alarme. Hinsichtlich der zeitlichen Merkmale der Vigilanzleistung ergab sich, daß die Vpn den geringsten Abfall der Entdeckungswahrscheinlichkeit erkennen lassen, die zu Beginn der Vigilanzaufgabe die Rate der falschen Alarme am stärksten reduzieren konnten. Die Ergebnisse wurden im Rahmen des detection-Modells interpretiert.
Teil II der Dissertation, die im Januar 1969 der Philosophischen Fakultät der Freien Universität Berlin vorgelegt wurde. 相似文献
Experiments in individual differences of vigilance behavior
Summary This paper is concerned with individual differences of vigilance performance in a simple and a complex vigilance task. In both tasks certain aspects of vigilance behavior were correlated with interference in the Color Word Test by Stroop. In the complex vigilance task there was a negative correlation between the probabilities of signal detections and false alarms rates. With regard to the temporal characteristics of vigilance behavior it was found out that subjects with the least decrease of detection rate showed the greatest reduction of their false alarms rate to the beginning of the vigilance task. The results were discussed in the context of the detection model.
Teil II der Dissertation, die im Januar 1969 der Philosophischen Fakultät der Freien Universität Berlin vorgelegt wurde. 相似文献
66.
67.
68.
69.
70.
The effects of chronic hypothalamic lesions and various drugs on the viscero-visceral reflexes of cats have been investigated, utilizing measurement of the bioelectrical activity of the cerebral cortex. After coagulation of the posterolateral hypothalamus the heart rate decreased by 40–60 beats per minute, but eventually it regained its initial value. The viscero-visceral reflexes from the gallbladder to the heart were preserved after the operative procedure. Chlorpromazine and atropine blocked both arousal and the cardiorespiratory response to stimulation of the gallbladder. Similar effects were produced by novocaine and pantocaine. 相似文献