全文获取类型
收费全文 | 4835篇 |
免费 | 611篇 |
国内免费 | 513篇 |
出版年
2024年 | 12篇 |
2023年 | 96篇 |
2022年 | 107篇 |
2021年 | 158篇 |
2020年 | 269篇 |
2019年 | 263篇 |
2018年 | 225篇 |
2017年 | 303篇 |
2016年 | 308篇 |
2015年 | 200篇 |
2014年 | 253篇 |
2013年 | 770篇 |
2012年 | 168篇 |
2011年 | 222篇 |
2010年 | 172篇 |
2009年 | 241篇 |
2008年 | 298篇 |
2007年 | 247篇 |
2006年 | 221篇 |
2005年 | 191篇 |
2004年 | 176篇 |
2003年 | 157篇 |
2002年 | 139篇 |
2001年 | 104篇 |
2000年 | 99篇 |
1999年 | 86篇 |
1998年 | 58篇 |
1997年 | 52篇 |
1996年 | 35篇 |
1995年 | 44篇 |
1994年 | 48篇 |
1993年 | 35篇 |
1992年 | 21篇 |
1991年 | 32篇 |
1990年 | 18篇 |
1989年 | 18篇 |
1988年 | 19篇 |
1987年 | 11篇 |
1986年 | 9篇 |
1985年 | 11篇 |
1984年 | 15篇 |
1983年 | 5篇 |
1982年 | 7篇 |
1981年 | 6篇 |
1980年 | 10篇 |
1979年 | 6篇 |
1978年 | 5篇 |
1977年 | 6篇 |
1976年 | 2篇 |
1975年 | 1篇 |
排序方式: 共有5959条查询结果,搜索用时 15 毫秒
981.
982.
在多重系统理论研究基础上,运用即时反馈训练范式,以大学生为被试,考查相关维度数量对基于规则和信息整合两种结构的类别学习的影响.结果表明:(1)相关维度数量是影响类别学习的重要因素,基于规则单维度结构的学习显著优于信息整合结构和基于规则双维度结构的学习,基于规则双维度结构的学习与信息整合结构的学习没有显著差异.(2)反应策略受到规则复杂性的影响,当类别结构中隐含的规则比较简单时,学习者使用规则策略;当类别结构中隐含的规则比较复杂时,学习者难以掌握规则,就会使用相似性策略.研究结果支持"难度观",而不支持多重系统理论. 相似文献
983.
984.
985.
Petra T. Bürgelt Mandy Morgan Regina Pernice 《Journal of community & applied social psychology》2008,18(4):282-298
Changes in migrants' backgrounds and societies sending and receiving migrants might increase adaptation issues and reduce retention. To enhance migrants' well‐being/health and their likelihood of staying it is necessary to gain an understanding of psychological and social factors that contribute to resilience and adaptation. This paper presents findings from a qualitative study that investigated the experiences, interpretations and actions of German migrant couples to New Zealand throughout the whole migration process to identify these factors. In depth, episodic interviews were conducted with four couples who decided to stay in New Zealand and four couples who decided to return to Germany. Interview data were complemented with participant observation. This paper provides insights into how the pre‐migration experiences, interpretations and actions of German migrants to New Zealand influenced their establishment, their interpretations and actions and consequently adaptation, well‐being/health and the decision whether to stay in New Zealand or to return to Germany. The findings illuminate the influence of psychological and social factors on migration experiences, interpretations and actions throughout the migration process. The paper offers some solutions for addressing the identified barriers to successful migration and integration into host societies. Copyright © 2008 John Wiley & Sons, Ltd. 相似文献
986.
Angela Ales Bello 《Axiomathes》2008,18(4):425-443
The most original aspect of Hedwig Conrad-Martius’ research is her interpretation of nature, performed through the phenomenological
method. She pinpoints the very essences of the natural phenomena, discovering entelechies inside them and a trans-physical
dimension. She reads the evolution of nature in a new way, against the deterministic interpretation of it. Inside nature one
can discover many levels, qualitatively different. The human being participates to all of them, but his/her peculiarity is
linked to the mental–spiritual life. 相似文献
987.
Development of a Tissue Engineered Heart Valve for Pediatrics: A Case Study in Bioengineering Ethics
Merryman WD 《Science and engineering ethics》2008,14(1):93-101
The following hypothetical case study was developed for bioengineering students and is concerned with choosing between two
devices used for development of a pediatric tissue engineered heart valve (TEHV). This case is intended to elicit assessment
of the devices, possible future outcomes, and ramifications of the decision making. It is framed in light of two predominant
ethical theories: utilitarianism and rights of persons. After the case was presented to bioengineering graduate students,
they voted on which device should be released. The results revealed that these bioengineering students preferred the more
reliable (and substantially more expensive) design, though this choice precludes the majority of the world from having access
to this technology. This case is intended to examine and explore where the balance lies between design, cost, and adequate
distribution of biomedical devices. 相似文献
988.
Michael McDermott 《Philosophical Studies》2008,138(2):225-232
According to classical decision theory, an agent realises at time t the option with maximum expected utility (determined by his beliefs and desires at t), where the relevant options are possible actions performed at t. I consider an alternative according to which the relevant options are in general plans, complex courses of action extending into the future. 相似文献
989.
Recent and puzzling experimental results suggest that people’s judgments as to whether or not an action was performed intentionally
are sensitive to moral considerations. In this paper, we outline these results and evaluate two accounts which purport to
explain them. We then describe a recent experiment that allegedly vindicates one of these accounts and present our own findings
to show that it fails to do so. Finally, we present additional data suggesting no such vindication could be in the offing
and that, in fact, both accounts fail to explain the initial, puzzling results they were purported to explain.
相似文献
Hagop SarkissianEmail: |
990.
我国艾滋病患者持续上升。艾滋病不仅损害了人们的躯体健康,也同时损害了人们的心理健康,引发心理危机。观察300例患者发现:抑郁症41.3%、焦虑症31.4%、报复心理20.0%、麻木8.3%。艾滋病的防治不仅仅是治疗肌体病痛的问题,还应该治疗患者的心理问题。因此运用系统论对艾滋病人心理问题中的相关问题进行探索和剖析,动员患者及全社会行动起来,才能达到对艾滋病的有效控制。 相似文献