全文获取类型
收费全文 | 42450篇 |
免费 | 1624篇 |
国内免费 | 10篇 |
出版年
2019年 | 551篇 |
2018年 | 699篇 |
2017年 | 750篇 |
2016年 | 792篇 |
2015年 | 565篇 |
2014年 | 709篇 |
2013年 | 3407篇 |
2012年 | 1280篇 |
2011年 | 1368篇 |
2010年 | 859篇 |
2009年 | 845篇 |
2008年 | 1229篇 |
2007年 | 1241篇 |
2006年 | 1182篇 |
2005年 | 1053篇 |
2004年 | 1014篇 |
2003年 | 970篇 |
2002年 | 995篇 |
2001年 | 1153篇 |
2000年 | 1094篇 |
1999年 | 852篇 |
1998年 | 541篇 |
1997年 | 450篇 |
1996年 | 450篇 |
1992年 | 670篇 |
1991年 | 668篇 |
1990年 | 630篇 |
1989年 | 650篇 |
1988年 | 634篇 |
1987年 | 613篇 |
1986年 | 637篇 |
1985年 | 697篇 |
1984年 | 579篇 |
1983年 | 575篇 |
1982年 | 509篇 |
1981年 | 481篇 |
1979年 | 631篇 |
1978年 | 522篇 |
1977年 | 452篇 |
1976年 | 494篇 |
1975年 | 555篇 |
1974年 | 617篇 |
1973年 | 628篇 |
1972年 | 507篇 |
1971年 | 443篇 |
1970年 | 435篇 |
1969年 | 470篇 |
1968年 | 551篇 |
1967年 | 463篇 |
1966年 | 468篇 |
排序方式: 共有10000条查询结果,搜索用时 46 毫秒
861.
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
862.
Patrick L. Hill Caryn E. Oshiro Teresa A. Hillier Victor J. Strecher 《Social and Personality Psychology Compass》2023,17(11):e12869
The COVID-19 pandemic brought new attention to the issues of food insecurity faced by individuals throughout the United States, a stressor exacerbated by disruptions to work status and supply chains. The burden of food insecurity likely carries consequences for whether individuals feel capable of pursuing their broad goals and life engagements; put differently, food insecurity may pose a threat to people perceiving a sense of purpose in life. The current study tested this claim across three samples taken during 2020 (n = 2009), 2021 (n = 1666), and 2022 (n = 1975). Participants completed inventories for perceived food insecurity, sense of purpose, depressive symptoms, and anxiety, among other measures. Results found consistent negative associations between food insecurity and sense of purpose across all three samples. In addition, food insecurity moderated associations between sense of purpose and depressive or anxiety symptoms. Sense of purpose was more strongly negatively associated with depressive and anxiety symptoms for those participants who reported no food insecurity. That said, sense of purpose remained negatively associated with psychological distress even among those reporting food insecurity. 相似文献
863.
Joseph J. Siev Richard E. Petty Borja Paredes Pablo Briñol 《Social and Personality Psychology Compass》2023,17(8):e12767
People generally intend to act more on beliefs and attitudes about which they have greater certainty. However, we introduce a boundary condition to the positive association between certainty and behavioral intentions—behavioral extremity. Uncertainty about a threatening issue like COVID-19 can be disconcerting, and we propose that uncertain people cope in part through increased openness to extreme actions like accepting risky medical treatments and aggression toward those defying mitigation policies. Testing this, we compiled and analyzed all the data on certainty about COVID-19 mitigation policies and willingness to engage in mitigation-related behaviors that our lab collected during the pandemic (6 samples, 20 behaviors, Ns up to 1496). External ratings of the behaviors' extremity moderated certainty-willingness associations: whereas greater certainty was associated with increased willingness to engage in moderate behaviors (the typical result), lower certainty was associated with increased willingness to engage in extreme behaviors, especially among those worried about becoming ill. 相似文献
864.
This study investigated whether political endorsements from in- versus out-group political elites would influence likelihood of COVID-19 vaccination. In March 2021, we ran an experiment with Democrats and Republicans in the United States to examine whether they would be more likely to get vaccinated following endorsements by former Presidents Obama or Trump. Participants reported greater likelihood of getting vaccinated if the vaccine was endorsed by an elite from their own rather than the opposing party. This effect was driven by Trump, who increased vaccination likelihood among Republicans but decreased it among Democrats. We also investigated the mechanisms underlying this persuasion effect and found that perceived bias and liking were plausible mediators, whereas perceived trustworthiness and expertise were not. This study highlights the potential of having endorsements from both Democrat and Republican political elites to increase support for health behaviors in a politically charged climate. 相似文献
865.
A study and replication of students faking interest in high status occupations on the Strong Vocational Interest Blank for Men. In general, the faking was successful in shifting the specific target occupational scales and especially the occupational level scale. Other scales are affected, many with decisive upward or downward shifts. Demonstration is made of the extent to which the faking condition led to differences in the overall test results. Various aspects of the general problem of test faking are reviewed. 相似文献
866.
The feeling of meaninglessness: A challenge to psychotherapy 总被引:2,自引:0,他引:2
867.
868.
869.
870.