全文获取类型
收费全文 | 5776篇 |
免费 | 986篇 |
国内免费 | 643篇 |
专业分类
7405篇 |
出版年
2024年 | 25篇 |
2023年 | 256篇 |
2022年 | 168篇 |
2021年 | 226篇 |
2020年 | 439篇 |
2019年 | 406篇 |
2018年 | 387篇 |
2017年 | 426篇 |
2016年 | 409篇 |
2015年 | 279篇 |
2014年 | 318篇 |
2013年 | 915篇 |
2012年 | 304篇 |
2011年 | 241篇 |
2010年 | 137篇 |
2009年 | 201篇 |
2008年 | 214篇 |
2007年 | 213篇 |
2006年 | 233篇 |
2005年 | 238篇 |
2004年 | 176篇 |
2003年 | 163篇 |
2002年 | 145篇 |
2001年 | 95篇 |
2000年 | 84篇 |
1999年 | 90篇 |
1998年 | 79篇 |
1997年 | 62篇 |
1996年 | 43篇 |
1995年 | 51篇 |
1994年 | 52篇 |
1993年 | 41篇 |
1992年 | 39篇 |
1991年 | 27篇 |
1990年 | 16篇 |
1989年 | 10篇 |
1988年 | 12篇 |
1987年 | 14篇 |
1986年 | 21篇 |
1985年 | 27篇 |
1984年 | 20篇 |
1983年 | 6篇 |
1982年 | 13篇 |
1981年 | 11篇 |
1980年 | 13篇 |
1979年 | 14篇 |
1978年 | 12篇 |
1977年 | 15篇 |
1976年 | 11篇 |
1975年 | 7篇 |
排序方式: 共有7405条查询结果,搜索用时 8 毫秒
811.
John-Michael Kuczynski 《Metaphilosophy》1998,29(4):313-330
This essay attempts to solve the so-called paradox of analysis: if one is to have any questions about x , one must know x ; but if one knows x , one has no questions about x . The obvious solution is this: one can inquire into x if one knows some, but not all, of x 's parts. But this solution is erroneous. Let x ' be those parts of x with which one is acquainted, and let S be the percipient in question. As with x , either S knows x ', in which case he has no questions about it; or S does not know x ', in which case he has no questions about it.
My solution is this. Perception and cognition give us, not the thing-in-itself, but a certain analogue of the thing-in-itself. To inquire into x , it is necessary to know not x , but only some analogue of x ; and to learn more about x is to become acquainted with increasingly precise analogues of x . 相似文献
My solution is this. Perception and cognition give us, not the thing-in-itself, but a certain analogue of the thing-in-itself. To inquire into x , it is necessary to know not x , but only some analogue of x ; and to learn more about x is to become acquainted with increasingly precise analogues of x . 相似文献
812.
In most social evaluation research it is difficult to achieve the degree of experimental rigor possible in an applied behavioral study. This study illustrates how the evaluation researcher can increase experimental rigor in the analysis of social interventions. In the first evaluation, a variation of the time-series design that offered maximum experimental control given the limitations of the situation, was employed to evaluate the effects of a specialized home-burglary police patrol. This design revealed that no effects could be attributed to the patrol. In the second evaluation, a multiple baseline-like design was possible in determining the effects of a police walking patrol. This design revealed that the patrol produced an increase in crime reporting but not in arrests. Social interventions often occur in a manner that allows varying degrees of experimental analysis. The evaluation researcher must attain optimal experimental analysis given the limitations of each social intervention. 相似文献
813.
Risto Saarinen 《Dialog》2016,55(2):158-166
While contemporary Scandinavian literature continues to discuss the problems of welfare state and social justice, it increasingly turns its attention to minority issues, multiculturalism, and the impact of digitalization. Jonas Gardell's HIV/AIDS trilogy Torka aldrig tårar utan handskar (Never wipe tears without gloves) highlights the family relations in the Swedish gay community. Jussi Valtonen's He eivät tiedä mitä tekevät (They do not know what they do) deals with the dystopias of social media and the power of global software companies. Religion and theology play a significant role in the works of both Gardell and Valtonen. 相似文献
814.
815.
There is increasing evidence that inadequate family environments (family material environment and family psychosocial environment) are not only social problems but also factors contributing to adverse neurocognitive outcomes. In the present study, the authors investigated the relationship among family environments, children's naturalistic affective state, self-reported stress, and executive functions in a sample of 157 Chinese families. These findings revealed that in inadequate family material environments, reduced children's cognitive flexibility is associated with increased naturalistic negative affectivity and self-reported stress. In addition, naturalistic negative affectivity mediated the association between family expressiveness and children's cognitive flexibility. The authors used a structural equation model to examine the mediation model hypothesis, and the results confirmed the mediating roles of naturalistic negative affectivity and self-reported stress between family environments and the cognitive flexibility of Chinese children. These findings indicate the importance of reducing stress and negative emotional state for improving cognitive functions in children of low socioeconomic status. 相似文献
816.
Opinion leadership describes an individual's tendency to informally influence others’ attitudes and overt behaviors. In contrast to contemporary views of opinion leadership as a highly domain-specific trait, this paper introduces a multi-faceted personality trait, generalized opinion leadership (GOL) that characterizes exceptionally influential individuals independent of a specific subject area. Two studies report on the psychometric properties of a scale to assess GOL. Study 1 is based on three independent samples (N = 1,575, N = 1,275, and N = 231) and demonstrates the factorial structure of the instrument and its measurement invariance across sex, age, and educational levels. Study 2 (N = 310) analyzes multitrait-multiinformant data to highlight the scale's discriminant validity with regard to innovativeness and trendsetting. 相似文献
817.
RaeAnne M. Pearson 《The Journal of genetic psychology》2016,177(4):103-121
The authors investigated the relationship between mother–child conversation and children's social understanding during middle childhood. Thirty-eight mother–child pairs participated, including a younger group (5–7 years old) and an older group (8–10 years old). Children completed 2 measures of social understanding and mothers and children discussed 4 stories involving social dilemmas. Results indicated that compared to the younger group, the older group (a) performed better on both measures of social understanding and (b) produced more basic mental talk (i.e., talk about beliefs, emotions, personality traits, and desires), and more advanced mental talk (i.e., talk about contrasting perspectives, recursion and relationship between mental states, and advanced emotions). Mothers of older children also produced more basic and advanced mental talk. Mothers' advanced mental talk predicted both children's social understanding and children's advanced mental talk. 相似文献
818.
The Effect of General Creative Personality and Freedom of Task Choice on Adolescents' Social Creativity 下载免费PDF全文
This study investigated the effect of general creative personality and freedom of task choice on the social creativity of adolescents. The results indicated, first, that senior high school students scored higher than junior high school students. Second, girls scored higher than boys on originality, fluency, flexibility, appropriateness, and utility with regard to creative social problem‐solving. Third, freedom of task choice and its interaction with creative personality had significant effects on the originality, appropriateness, utility, flexibility, and fluency of social creativity. Adolescents who completed the task voluntarily scored higher on these dimensions than adolescents who completed it reluctantly and, among the voluntary adolescents, those with high and medium creative personality scored higher than those with low creative personality, whereas no such difference was found among the reluctant adolescents. Adolescents were more likely to show social creativity, and their general creative personality was more likely to be brought into effect under the freedom of task choice condition. 相似文献
819.
Examination of efficacious,efficient, and socially valid error‐correction procedures to teach sight words and prepositions to children with autism spectrum disorder 下载免费PDF全文
Tiffany Kodak Vincent Campbell Samantha Bergmann Brittany LeBlanc Eva Kurtz‐Nelson Tom Cariveau Shaji Haq Patricia Zemantic Jacob Mahon 《Journal of applied behavior analysis》2016,49(3):532-547
Prior research shows that learners have idiosyncratic responses to error‐correction procedures during instruction. Thus, assessments that identify error‐correction strategies to include in instruction can aid practitioners in selecting individualized, efficacious, and efficient interventions. The current investigation conducted an assessment to compare 5 error‐correction procedures that have been evaluated in the extant literature and are common in instructional practice for children with autism spectrum disorder (ASD). Results showed that the assessment identified efficacious and efficient error‐correction procedures for all participants, and 1 procedure was efficient for 4 of the 5 participants. To examine the social validity of error‐correction procedures, participants selected among efficacious and efficient interventions in a concurrent‐chains assessment. We discuss the results in relation to prior research on error‐correction procedures and current instructional practices for learners with ASD. 相似文献
820.
Ronald E. Brown R. Khari Brown Davin Phoenix James S. Jackson 《Journal for the scientific study of religion》2016,55(2):308-323
Using the 2008 National Politics Study, the present study indicates that while African Americans are more likely than whites to hear sermons about poverty and other political issues, hearing such sermons more consistently associates with support for anti‐poverty government programs among non‐Hispanic whites than among both African Americans and Hispanics. The racially/ethnically marginalized status of blacks and Hispanics may contribute to these groups being more receptive than whites to religious messages emphasizing social inequality. The contrasting racial experiences of dominance and marginalization may also help explain why hearing politicized sermons is more meaningful to the progressive social welfare attitudes of whites than to African Americans and Hispanics. This expectation is rooted in the heightened variability of perspectives among whites and their religious organizations regarding the government's role in aiding the economically disadvantaged. Conversely, the vast majority of blacks and Hispanics support the government helping individuals who fallen upon hard times. The greater variability in opinion among whites may also allow for greater differences in opinion to emerge between whites who attend relative to those outside of religious congregations led by clergy emphasizing spiritual and political solidarity with the poor than is the case for African Americans and Hispanics. 相似文献