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   1505篇
  免费   97篇
  国内免费   4篇
  1606篇
  2023年   18篇
  2022年   22篇
  2021年   21篇
  2020年   30篇
  2019年   42篇
  2018年   64篇
  2017年   65篇
  2016年   69篇
  2015年   39篇
  2014年   45篇
  2013年   178篇
  2012年   83篇
  2011年   51篇
  2010年   55篇
  2009年   46篇
  2008年   49篇
  2007年   66篇
  2006年   58篇
  2005年   42篇
  2004年   50篇
  2003年   54篇
  2002年   46篇
  2001年   27篇
  2000年   31篇
  1999年   26篇
  1998年   23篇
  1997年   17篇
  1996年   13篇
  1995年   12篇
  1994年   9篇
  1993年   8篇
  1992年   15篇
  1991年   8篇
  1990年   8篇
  1989年   8篇
  1988年   11篇
  1987年   11篇
  1985年   10篇
  1984年   10篇
  1982年   10篇
  1981年   9篇
  1979年   8篇
  1977年   7篇
  1976年   8篇
  1975年   9篇
  1973年   9篇
  1971年   8篇
  1970年   10篇
  1968年   7篇
  1967年   9篇
排序方式: 共有1606条查询结果,搜索用时 15 毫秒
821.
822.
823.
For adopted and Looked After children with compromised early experiences, there can be troubling phantasies and anxieties associated with parental objects. These internal object relations can seriously restrict the development of secure intimate relationships with new parental figures. Adoptive parents and foster carers bear the brunt of the associated difficulties. Clinical work with the child, parents/carers, family, or network, may help processes of containment, differentiation, working through, mourning, and integration. This paper is based on thinking derived from clinical work with children who are adopted or Looked After, and with adoptive parental couples, carers, and networks. The primary focus is on how the child needs to find a ‘psychic home’ in the minds of others for their damaged internal parental objects, and the emotional capacities required in adoptive parents to provide this. I describe some of the complexities for adoptive parents and others in providing what is needed to enable the child to experience their internal parental objects in a fuller way. This process can allow the child to introject, identify with, and re-imagine their internal parental objects, and through this develop a more realistic relationship to their adoptive parents and to their birth parents. It promotes trust, freedom, and emotional depth in the relationship with parental figures.  相似文献   
824.
Decision making is the process by which actions are constructed and initiated. Across many research streams, this can be explained in terms of three broad cognitive processes: cognitive abilities that construct judgements and potential courses of action, and interacting monitoring and control processes that determine when to initiate them as behaviour. The aim of this research was to investigate the generality of individual differences in these processes, and their power to predict patterns of decision behaviour identified in our previous research. Undergraduate participants (N = 364) completed nine tests assessing cognitive abilities, monitoring confidence, control thresholds and various patterns of decision behaviour. The tests differed in their cognitive ability requirements and the nature of the payoffs associated with decisions. Cognitive abilities were a strong predictor of individuals' decision competence and optimality, while monitoring confidence and control thresholds were strong and unique predictors of their overall decisiveness, and reckless and hesitant errors. These results were strongest when the measures of cognitive abilities and monitoring confidence were derived from tests with the same cognitive requirements as the tests used to derive the decision behaviours and when the control threshold measure was derived from tests with the same decision payoffs as the test used to derive the decision behaviours. This effect was particularly pronounced for control thresholds, highlighting the domain‐specific nature of cognitive control processes. These findings demonstrate how cognitive abilities, monitoring output and control thresholds interact with cognitive requirements and context‐specific payoffs to drive individual differences in decision‐making behaviour. Copyright © 2016 John Wiley & Sons, Ltd.  相似文献   
825.
In this paper, we report on the influence of rapid solidification and severe plastic deformation on the solid solubility of Fe in Al. Atom probe tomography, for the first time, was performed on fine (3–4 μm diameter) and coarse (~100 μm) as-atomised Al-5 at.% Fe powder and cryomilled Al-5 at.% Fe powder. The atomised powders exhibited negligible Fe in solution with Al, whereas the cryomilled powder contained ~2 at.% Fe in solution. Moreover, our results suggest that severe plastic deformation is preferable to atomisation/rapid solidification for increasing the non-equilibrium solid solubility of Fe in Al.  相似文献   
826.
The post-genomic era is an exciting time for researchers interested in the biology of speech and language. Substantive advances in molecular methodologies have opened up entire vistas of investigation that were not previously possible, or in some cases even imagined. Speculations concerning the origins of human cognitive traits are being transformed into empirically addressable questions, generating specific hypotheses that can be explicitly tested using data collected from both the natural world and experimental settings. In this article, I discuss a number of promising lines of research in this area. For example, the field has begun to identify genes implicated in speech and language skills, including not just disorders but also the normal range of abilities. Such genes provide powerful entry points for gaining insights into neural bases and evolutionary origins, using sophisticated experimental tools from molecular neuroscience and developmental neurobiology. At the same time, sequencing of ancient hominin genomes is giving us an unprecedented view of the molecular genetic changes that have occurred during the evolution of our species. Synthesis of data from these complementary sources offers an opportunity to robustly evaluate alternative accounts of language evolution. Of course, this endeavour remains challenging on many fronts, as I also highlight in the article. Nonetheless, such an integrated approach holds great potential for untangling the complexities of the capacities that make us human.  相似文献   
827.
828.
829.
An occlusion protocol was used to elucidate the respective roles of preprograming and online control during the quiet eye period of golf putting. Twenty-one novice golfers completed golf putts to 6-ft and 11-ft targets under full vision or with vision occluded on initiation of the backswing. Radial error (RE) was higher, and quiet eye was longer, when putting to the 11-ft versus 6-ft target, and in the occluded versus full vision condition. Quiet eye durations, as well as preprograming, online and dwell durations, were longer in low-RE compared to high-RE trials. The preprograming component of quiet eye was significantly longer in the occluded vision condition, whereas the online and dwell components were significantly longer in the full vision condition. These findings demonstrate an increase in preprograming when vision is occluded. However, this was not sufficient to overcome the need for online visual control during the quiet eye period. These findings suggest the quiet eye period is composed of preprograming and online control elements; however, online visual control of action is critical to performance.  相似文献   
830.
Since its inception the 'mindblindness' theory of autism has greatly furthered our understanding of the core social-communication impairments in autism spectrum conditions (ASC). However, one of the more subtle issues within the theory that needs to be elaborated is the role of the 'self'. In this article, we expand on mindblindness in ASC by addressing topics related to the self and its central role in the social world and then review recent research in ASC that has yielded important insights by contrasting processes relating to both self and other. We suggest that new discoveries lie ahead in understanding how self and other are interrelated and/or distinct, and how understanding atypical self-referential and social-cognitive mechanisms may lead to novel ideas as to how to facilitate social-communicative abilities in ASC.  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