全文获取类型
收费全文 | 41961篇 |
免费 | 669篇 |
国内免费 | 28篇 |
专业分类
教育 | 29831篇 |
科学研究 | 3663篇 |
各国文化 | 458篇 |
体育 | 3660篇 |
综合类 | 18篇 |
文化理论 | 363篇 |
信息传播 | 4665篇 |
出版年
2021年 | 442篇 |
2020年 | 681篇 |
2019年 | 1046篇 |
2018年 | 1414篇 |
2017年 | 1372篇 |
2016年 | 1235篇 |
2015年 | 749篇 |
2014年 | 1095篇 |
2013年 | 8149篇 |
2012年 | 1010篇 |
2011年 | 1076篇 |
2010年 | 807篇 |
2009年 | 854篇 |
2008年 | 938篇 |
2007年 | 861篇 |
2006年 | 777篇 |
2005年 | 703篇 |
2004年 | 702篇 |
2003年 | 606篇 |
2002年 | 621篇 |
2001年 | 811篇 |
2000年 | 806篇 |
1999年 | 700篇 |
1998年 | 432篇 |
1997年 | 428篇 |
1996年 | 503篇 |
1995年 | 449篇 |
1994年 | 403篇 |
1993年 | 394篇 |
1992年 | 584篇 |
1991年 | 593篇 |
1990年 | 577篇 |
1989年 | 602篇 |
1988年 | 538篇 |
1987年 | 560篇 |
1986年 | 517篇 |
1985年 | 564篇 |
1984年 | 464篇 |
1983年 | 432篇 |
1982年 | 366篇 |
1981年 | 345篇 |
1980年 | 338篇 |
1979年 | 518篇 |
1978年 | 373篇 |
1977年 | 330篇 |
1976年 | 298篇 |
1975年 | 266篇 |
1974年 | 277篇 |
1973年 | 256篇 |
1971年 | 250篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
992.
Jean-Pierre V. M. Hérubel 《Learned Publishing》2023,36(2):164-170
Academic book and journal publishing constitutes the majority focus of university presses. Besides commercial scholarly publishers, academic scholars and researchers view the opportunities provided by university presses as important venues for the dissemination of their research. This discussion focuses on the disciplinary imperative to publish scholarship that is ever more fluid and specialized as academic disciplines continue to become further nuanced in their response to the increasing knowledge produced by humanities and social science inquiry. The focus is on university presses and not commercial scholarly presses, although constitute a significant locus of scholarly publishing. What are the general characteristics of academic specialization and university press publishing? Further, how is disciplinary fluidity, especially evolving specialization, reflected in university press book publishing nomenclature and how scholarship is tied to the intellectual preoccupations of academic specialization? Multi- and inter-disciplinarities further articulate disciplinary publishing, accelerating disciplinary fluidity. Examples from disciplinary and emerging configurations of disciplinary nomenclature utilized by university presses offers insight into specialization and publishing. Academic history publishing is used to illustrate newly emerging fluid disciplinary configurations. 相似文献
993.
安东尼·布莱尔 《中山大学学报论丛》2011,4(1)
"非形式逻辑"作为逻辑的子领域,最初出现于1970至1980年代的美国和加拿大,本文意在回顾非形式逻辑发展的早期历史进程.本文假定,当我们从历史的角度来考察时,非形式逻辑的本质能够得以阐明.因此,我将以观念史领域的评论作为出发点.之所以不从理论的要素谈起并把历史留给历史学家,其中一个理由在于"非形式逻辑"这个词并不指示一个理论.非形式逻辑部分地可看作是某个思潮,部分地可当作一种论证研究进路,部分地涉及到对逻辑之本质的看法,这些都可以通过考察非形式逻辑的发展史来加以理解.本文的第一部分追溯了非形式逻辑的兴起,概括了其思想史和社会史,并评述了其早期发展中的主要人物、教科书,以及主要的论旨及其社会化.第二部分简要描述了<逻辑的自我辩护>这本教科书中的一些革新.第三部分简要涉及非形式逻辑与其它领域的早期互动. 相似文献
994.
Amanda Harrison Megan Phelps Arany Nerminathan Shirley Alexander Karen M. Scott 《British journal of educational technology : journal of the Council for Educational Technology》2019,50(2):531-545
University policies prohibiting use of mobile devices by medical students during clinical placements are contradicted by regular use by physicians. Consequently, many students use their mobile devices, which can be beneficial for learning but may put patient privacy at risk. This study explores the reasons underlying students' decisions about using mobile devices in clinical settings. We used a mixed-methods sequential explanatory design involving a questionnaire and focus groups. Qualitative data from the questionnaire and focus groups was analysed through thematic analysis. We found students were aware of the risks mobile devices posed to professionalism and medical practice. Despite prohibitions, many made individual decisions to use mobile devices because the benefits outweighed the risks. These students were influenced by an organised, strategic approach to learning and a motivation to comply with the beliefs and behaviours of their medical teams and conform to physicians' directives in order to participate in their community of practice. Many students appear to be transferring everyday use of mobile devices to clinical settings. There is a need to understand and promote aspects of learning that are enhanced by mobile devices in clinical settings, while articulating clear guidelines and boundaries compatible with the professional behaviour expected of students. 相似文献
995.
996.
Katharine H. Zeiders Sara D. Bayless Chelsea L. Derlan Adriana J. Umaña-Taylor Kimberly A. Updegraff Laudan B. Jahromi 《Child development》2019,90(3):e373-e385
Ethnic–racial identity (ERI) development and ethnic–racial discrimination are two salient experiences among adolescents in the United States. Despite growing awareness of the costs and benefits of these experiences individually, we know little about how they may influence one another. The current study examined competing hypotheses relating discrimination and components of ERI (i.e., exploration, resolution, affirmation) among a sample of Mexican-origin adolescent mothers (N = 181; Mage at Wave 1 = 16.83, SD = 1.01) across six waves of data. Findings revealed that within-person changes in discrimination predicted subsequent ERI resolution and affirmation; however, ERI did not predict subsequent discrimination. Between-person effects of discrimination on affirmation were significant. Our findings underscore the importance of discrimination experiences in shaping Mexican-origin adolescent mothers’ normative developmental competencies. 相似文献
997.
Mariola C. Gremmen Christian Berger Allison M. Ryan Christian E.G. Steglich René Veenstra Jan K. Dijkstra 《Child development》2019,90(2):e192-e211
This study examined to what extent adolescents’ and their friends’ risk behaviors (i.e., delinquency and alcohol use) hinder or promote their academic achievement (grade point average [GPA]), and vice versa. Longitudinal data were used (N = 1,219 seventh- to ninth-grade adolescents; Mage = 13.69). Results showed that risk behaviors negatively affected adolescents’ GPA, whereas GPA protected against engaging in risk behaviors. Moreover, adolescents tended to select friends who have similar behaviors and friends’ behaviors became more similar over time (same-behavior selection and influence). Furthermore, although same-behavior effects seemed to dominate, evidence was found for some cross-behavior selection effects and a tendency in seventh grade for cross-behavior influence effects. Concluding, it is important to investigate the interplay between different behaviors with longitudinal social network analysis. 相似文献
998.
The current study used a novel methodology based on multivocal ethnography to assess the relations between conformity and evaluations of intelligence and good behavior among Western (U.S.) and non-Western (Ni-Vanuatu) children (6- to 11-year-olds) and adolescents (13- to 17-year-olds; N = 256). Previous research has shown that U.S. adults were less likely to endorse high-conformity children as intelligent than Ni-Vanuatu adults. The current data demonstrate that in contrast to prior studies documenting cultural differences between adults' evaluations of conformity, children and adolescents in the United States and Vanuatu have a conformity bias when evaluating peers' intelligence and behavior. Conformity bias for good behavior increases with age. The results have implications for understanding the interplay of conformity bias and trait psychology across cultures and development. 相似文献
999.
Marc Jambon Sheri Madigan André Plamondon Ella Daniel Jennifer M. Jenkins 《Child development》2019,90(5):1598-1613
This study utilized actor–partner interdependence modeling to examine the bidirectional effects of younger (Mage = 18 months) and older siblings (Mage = 48 months) on later empathy development in a large (n = 452 families), diverse (42% immigrant) Canadian sample. Controlling for parenting, demographic characteristics, sibling relationship quality, and within-child stability in empathic concern, both younger and older siblings’ observed empathic concern uniquely predicted relative increases in the other's empathy over a period of 18 months. The strength of the partner effects did not differ by birth order. Sex composition moderated the younger sibling partner effect, whereas age gap moderated the older sibling partner effect. This study highlights the important role that siblings play in enhancing the development of care and concern for others. 相似文献
1000.
Two studies investigated 4- to 7-year-olds’ knowledge about pretending. In Study 1, children (N = 66) defined pretending and described examples of own and others’ pretending. In Study 2, children (N = 52) defined pretending and then completed a battery of measures that examined their understanding that pretending involved mental states. In Study 1, older children articulated more defining features of pretending than younger children. When describing how they or others pretended, children focused on action or appearance, regardless of whether they had included more defining features in their definitions of pretending. In Study 2, the more defining features children articulated, the better their performance on the battery. We discuss the implications of these data for the role of pretending in children's developing theory of mind. 相似文献