首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   741篇
  免费   51篇
  国内免费   28篇
  2024年   3篇
  2023年   23篇
  2022年   16篇
  2021年   39篇
  2020年   39篇
  2019年   37篇
  2018年   36篇
  2017年   37篇
  2016年   46篇
  2015年   24篇
  2014年   59篇
  2013年   72篇
  2012年   10篇
  2011年   41篇
  2010年   27篇
  2009年   28篇
  2008年   26篇
  2007年   33篇
  2006年   21篇
  2005年   22篇
  2004年   29篇
  2003年   15篇
  2002年   8篇
  2001年   8篇
  2000年   9篇
  1999年   4篇
  1998年   11篇
  1997年   9篇
  1996年   5篇
  1995年   7篇
  1994年   5篇
  1993年   9篇
  1992年   6篇
  1991年   6篇
  1990年   3篇
  1987年   2篇
  1986年   1篇
  1985年   5篇
  1984年   4篇
  1983年   1篇
  1982年   3篇
  1981年   3篇
  1980年   4篇
  1979年   10篇
  1978年   3篇
  1977年   2篇
  1976年   3篇
  1975年   1篇
  1974年   3篇
  1973年   1篇
排序方式: 共有820条查询结果,搜索用时 15 毫秒
721.
A useful framework for understanding methods is to think of them as being on a continuum of holistic and pattern focused to particularistic and specific. This paper argues for this conceptualization rather than thinking of quantitative and qualitative methods as oppositional and potentially contradictory. A case study provides an example of using both quantitative and qualitative methods in a holistic and pattern-focused study, while also attending to the values and goals of community psychology. The substantive research goal is to understand a child's experience of places related to school. Methods include ethnographic long-term participation and observation, interviews, multidimensional scaling, and social network analysis. Most quantitative method variables are generated from study participants; no outside structure is imposed. The quantitative methods extend and inform the qualitative methods, just as the qualitative methods extend and inform the quantitative methods. The quantitative and qualitative methods work reciprocally to extend and inform each other.  相似文献   
722.
723.
How do we find out whether someone is conscious of some information or not? A simple answer is “We just ask them”! However, things are not so simple. Here, we review recent developments in the use of subjective and objective methods in implicit learning research and discuss the highly complex methodological problems that their use raises in the domain.  相似文献   
724.
This paper considers an approach to teaching ethics in bioengineering based on the How People Learn (HPL) framework. Curricula based on this framework have been effective in mathematics and science instruction from the kindergarten to the college levels. This framework is well suited to teaching bioengineering ethics because it helps learners develop “adaptive expertise”. Adaptive expertise refers to the ability to use knowledge and experience in a domain to learn in unanticipated situations. It differs from routine expertise, which requires using knowledge appropriately to solve routine problems. Adaptive expertise is an important educational objective for bioengineers because the regulations and knowledge base in the discipline are likely to change significantly over the course of their careers. This study compares the performance of undergraduate bioengineering students who learned about ethics for stem cell research using the HPL method of instruction to the performance of students who learned following a standard lecture sequence. Both groups learned the factual material equally well, but the HPL group was more prepared to act adaptively when presented with a novel situation.  相似文献   
725.
726.
Individual Concepts in Modal Predicate Logic   总被引:1,自引:0,他引:1  
The article deals with the interpretation of propositional attitudes in the framework of modal predicate logic. The first part discusses the classical puzzles arising from the interplay between propositional attitudes, quantifiers and the notion of identity. After comparing different reactions to these puzzles it argues in favor of an analysis in which evaluations of de re attitudes may vary relative to the ways of identifying objects used in the context of use. The second part of the article gives this analysis a precise formalization from a model- and proof-theoretic perspective. This material has grown out of Chapters 2 and 4 of my PhD thesis Quantification under Conceptual Covers.  相似文献   
727.
How the nervous system encodes learning and memory processes has interested researchers for 100 years. Over this span of time, a number of basic neuroscience methods has been developed to explore the relationship between learning and the brain, including brain lesion, stimulation, pharmacology, anatomy, imaging, and recording techniques. In this paper, we summarize how different research approaches can be employed to generate converging data that speak to how structures and systems in the brain are involved in simple associative learning. To accomplish this, we review data regarding the involvement of a particular region of cerebellar cortex (Larsell's lobule HVI) in the widely used paradigm of classical eyeblink conditioning. We also present new data on the role of lobule HVI in eyeblink conditioning generated by combining temporary brain inactivation and single-cell recording methods, an approach that looks promising for further advancing our understanding of relationships between brain and behavior.  相似文献   
728.
729.
In this introductory article we define environmental change strategies (ECS), summarize the primary challenges associated with evaluating ECS, and provide an overview of the methods researchers have employed to begin to address these challenges. This special issue provides a range of examples, from researchers and practitioners in the field, of different approaches for addressing these challenges. These articles present new methods to understand and test how ECS are implemented and propose methods to evaluate their implementation. The content of the articles covers multiple public health issues, including substance abuse prevention, tobacco control, HIV prevention, and obesity prevention. This special issue is intended to build the evidence base for effective ECS, generate compelling discussion, critical analyses, and spur future research that will help improve the implementation and evaluation of ECS.  相似文献   
730.
The objective of this research was to gain a deeper understanding of factors influencing the healthiness of food choice behaviors of community-dwelling adults with severe mental illness. Semi-structured interviews were conducted in an outpatient treatment facility with 20 program participants and 10 staff. Grounded theory analysis methods were used. Five dominant themes emerged: food availability, preference for simple food preparation, perceived cost of food, complexity of choice, and relative importance of healthy food choices. The theme of medication effects only emerged from staff interviews. This research can be useful to inform the design of nutrition interventions for this population.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号