全文获取类型
收费全文 | 77519篇 |
免费 | 2389篇 |
国内免费 | 32篇 |
专业分类
79940篇 |
出版年
2020年 | 665篇 |
2019年 | 856篇 |
2018年 | 4327篇 |
2017年 | 3691篇 |
2016年 | 3313篇 |
2015年 | 1055篇 |
2014年 | 1151篇 |
2013年 | 5372篇 |
2012年 | 2414篇 |
2011年 | 4215篇 |
2010年 | 3525篇 |
2009年 | 2589篇 |
2008年 | 3426篇 |
2007年 | 3770篇 |
2006年 | 1665篇 |
2005年 | 1705篇 |
2004年 | 1640篇 |
2003年 | 1448篇 |
2002年 | 1474篇 |
2001年 | 1872篇 |
2000年 | 1780篇 |
1999年 | 1383篇 |
1998年 | 799篇 |
1997年 | 693篇 |
1996年 | 625篇 |
1995年 | 626篇 |
1994年 | 588篇 |
1993年 | 602篇 |
1992年 | 1096篇 |
1991年 | 1037篇 |
1990年 | 1019篇 |
1989年 | 920篇 |
1988年 | 859篇 |
1987年 | 853篇 |
1986年 | 866篇 |
1985年 | 930篇 |
1984年 | 763篇 |
1983年 | 675篇 |
1982年 | 567篇 |
1981年 | 553篇 |
1980年 | 523篇 |
1979年 | 766篇 |
1978年 | 601篇 |
1976年 | 539篇 |
1975年 | 676篇 |
1974年 | 719篇 |
1973年 | 654篇 |
1972年 | 598篇 |
1968年 | 585篇 |
1967年 | 573篇 |
排序方式: 共有10000条查询结果,搜索用时 8 毫秒
971.
Mechanographic examinations have hitherto played only a minor role in general clinical neuromuscular functional diagnostics. The purpose of this contribution is, therefore, to present an appropriate recording apparatus (W. Zett , 1969), to report on the values that can be considered normal and to outline the diagnostic value of the method using clinical applications as examples. Special value is attached to simultaneous recording of the EMG and the mechanograph because this method permits differentiated conclusions to be drawn regarding disturbances in muscular activity, the electromechanical coupling and the actual process of contraction. The method is also important for pharmacological investigations and should be used principally in connection with musclepathology for objectifying the effects of medication. 相似文献
972.
Asymmetric neural control systems in human self-regulation 总被引:15,自引:0,他引:15
973.
Prolonged deprivation and future orientation (FO) were studied in 200 Indian and Nepalese students of 14–16 and 18–20 years with verbal measures. In both cultures low deprived subjects were significantly more future-oriented. In the development of FO both age and deprivation were significant with experiential aspect of socialization exerting greater influence than physico-economic deprivation. 相似文献
974.
Finke and Pinker (1982, 1983) showed subjects an array of dots followed by an arrow in a blank field, and asked them to determine whether the arrow pointed to any of the previously seen dots. Response times were linearly related to the distance between the arrow and the nearest dot, suggesting that subjects spontaneously used an internal scanning or extrapolation process to perform the task. We replicate and extend this finding by varying the retention interval, and by employing a paradigm in which subjects’ eyes are closed and the arrows are described to them using a coordinate scheme. We also show that subjects are unable to predict the form of the data when the task simply is described to them. Results suggest that mental scanning along a straight path can be performed on images reconstructed from memory, and that it does not depend on the ongoing perception of a continuous surface, on physical eye movements, or on demand characteristics. 相似文献
975.
Emily J. Charvat Chelsea L. Garneau-Rosner James Kale Monk Colleen W. Colaner 《Family process》2023,62(1):423-441
This study extends prior research on the intergenerational transmission of relationship instability by examining parents' history of on-off relationships as a predictor of emerging adults' own cycling (i.e., breaking up and renewing with the same romantic partner). Data were collected at a large mid-western university from 702 emerging adults (18–25 years old). Multinomial logistic regression was used to predict the likelihood that participants had cycled in a past or current relationship. Results show that parental cycling increased the likelihood of offspring cycling in a past or current relationship relative to never cycling, and greater uncertainty about the future of the relationship was a mechanism through which such transmission occurred. Findings from this study demonstrate that parental relationship instability can even be consequential for the transient relationships within emerging adulthood, making family history a productive area to explore for practitioners working with cyclical partners and/or emerging adults. 相似文献
976.
Paula A. G. Soneral Sara E. Brownell M. Elizabeth Barnes 《Journal for the scientific study of religion》2023,62(1):184-202
Christians are notably underrepresented in science in part due to long-standing public perceptions of science-religion incompatibility and antireligious bias in science. This research explores whether undergraduates at a Christian university perceive and impose anti-Christian cultural stigma in science. Survey results from 126 biology students revealed that though students generally perceived the culture of science to be anti-Christian, they perceived Christians to have equal opportunities for scientific achievement. Results from a quasi-experimental audit study, in which students evaluated one of two profiles for mock prospective Ph.D. applicants (Christian or undisclosed faith) showed that students did not project anti-Christian stereotypes in terms of competence, hireability, or likeability, but showed some evidence of pro-Christian favorability. Together, this study suggests that the affirmational community of a Christian University may alleviate some negative impacts of anti-Christian stereotypes in academic biology, even as students perceive discrimination against Christians in science and atheists as more scientifically competent. 相似文献
977.
Dr James Butler 《International review of missions》2023,112(1):110-124
At the heart of this article is an inquiry into the relationship between human and divine agency in the doctrine of the missio Dei and a critique of the turn to the language of discipleship in looking to articulate this agency. Taking the World Council of Churches’ Commission of World Mission and Evangelism's two recent documents, Together towards Life: Mission and Evangelism in Changing Landscapes (TTL) and the “Arusha Call to Discipleship,” as a case study, this article will seek to articulate an account of human participation in the missio Dei which maintains the emphasis on spirituality in TTL. Through a close reading of TTL and the Arusha Call, the article will demonstrate that the introduction of discipleship language has not solved the issue of agency but rather has changed the account of agency and, as a result, the missiology. By turning to accounts of faithful participation from qualitative research into British Methodism, to John V. Taylor's Go-between God, and to Pope Francis’ Evangelii gaudium, I will suggest that a better account of human agency in the missio Dei can be developed by emphasizing the pneumatology of TTL and by turning to language of attentiveness, accompaniment, and discernment. 相似文献
978.
James W. McAllister 《Metaphilosophy》2023,54(4):507-522
The scientific realism debate in philosophy of science raises some intriguing methodological issues. Scientific realism posits a link between a scientific theory's observational and referential success. This opens the possibility of testing the thesis empirically, by searching for evidence of such a link in the record of theories put forward in the history of science. Many realist philosophers working today propose case study methodology as a way of carrying out such a test. This article argues that a qualitative method such as case study methodology is not adequate for this purpose, for two reasons: to test scientific realism is to pose an effects-of-causes question, and observational and referential success are quantities that theories possess to a greater or lesser degree. The article concludes that an empirical test of scientific realism requires a quantitative method. 相似文献
979.
James Norton 《Metaphilosophy》2023,54(1):3-16
This paper defends the usefulness of the concept of philosophical progress and the common assumption that philosophy and science aim to make the same, or a comparable, kind of progress. It does so by responding to Yafeng Shan's (2022) arguments that the wealth of research on scientific progress is not applicable or useful to philosophy, and that philosophy doesn't need a concept of progress at all. It is ultimately argued that while Shan's arguments are not successful, they reveal the way forward in developing accounts of philosophical progress. 相似文献
980.
Jennifer M. Cook Cassandra A. Storlie James McDonald 《Journal of Employment Counseling》2023,60(1):17-30
The future career autobiography (FCA) is a narrative, discovery-based career intervention designed to assess individuals’ career hopes and dreams. In total, 134 low-income, ethnically and racially diverse middle school students participated in an FCA intervention through a yearlong grant-funded career development initiative. Using content analysis, we analyzed participants’ FCAs for socioeconomic status factors and lifestyle indicators. We found that participants articulated occupational and lifestyle factors more than education and income, and that there were differences based on biological sex, race, and ethnicity. We present pertinent results and discuss implications for counseling practice and future research. 相似文献