全文获取类型
收费全文 | 947篇 |
免费 | 48篇 |
出版年
2023年 | 14篇 |
2021年 | 14篇 |
2020年 | 20篇 |
2019年 | 19篇 |
2018年 | 26篇 |
2017年 | 35篇 |
2016年 | 39篇 |
2015年 | 20篇 |
2014年 | 20篇 |
2013年 | 106篇 |
2012年 | 31篇 |
2011年 | 43篇 |
2010年 | 18篇 |
2009年 | 29篇 |
2008年 | 46篇 |
2007年 | 39篇 |
2006年 | 27篇 |
2005年 | 23篇 |
2004年 | 30篇 |
2003年 | 27篇 |
2002年 | 33篇 |
2001年 | 17篇 |
2000年 | 19篇 |
1999年 | 12篇 |
1998年 | 14篇 |
1997年 | 12篇 |
1996年 | 10篇 |
1995年 | 15篇 |
1994年 | 9篇 |
1993年 | 14篇 |
1992年 | 14篇 |
1991年 | 20篇 |
1990年 | 11篇 |
1989年 | 6篇 |
1988年 | 14篇 |
1987年 | 12篇 |
1985年 | 9篇 |
1984年 | 11篇 |
1983年 | 10篇 |
1982年 | 7篇 |
1981年 | 9篇 |
1980年 | 8篇 |
1978年 | 7篇 |
1977年 | 9篇 |
1976年 | 5篇 |
1974年 | 7篇 |
1973年 | 6篇 |
1971年 | 5篇 |
1969年 | 6篇 |
1967年 | 8篇 |
排序方式: 共有995条查询结果,搜索用时 15 毫秒
151.
Gestsdottir S Urban JB Bowers EP Lerner JV Lerner RM 《New directions for child and adolescent development》2011,2011(133):61-76
The positive youth development (PYD) perspective emphasizes that thriving occurs when individual ?context relations involve the alignment of adolescent strengths with the resources in their contexts. The authors propose that a key component of this relational process is the strength that youth possess in the form of self-regulatory processes; these processes optimize opportunities to obtain ecological resources that enhance the probability of PYD. They use the selection, optimization, and compensation (SOC) model of intentional self-regulation to discuss the role of self-regulation in the PYD perspective among diverse youth. 相似文献
152.
In recent decades, what matters for individual quality of life (QoL) has increasingly been the focus of empirical social science
research. However, individuals are rarely asked directly what is important for their quality of life as part of large-scale
surveys. The present analysis studies perceptions of what matters for QoL in a large-scale longitudinal dataset—the British
Household Panel Survey—which includes an open-ended question on QoL in three waves spanning ten years. We find that concepts
of QoL change over the life course and differ between men and women. We hypothesize that changes in perceptions of QoL are
related to important life events, such as the birth of a first child and retirement. These life events constitute ’turning
points’ after which individuals often shift their priorities of what matters for their QoL. We further explore whether such
shifts in priorities are stable or disappear more than five years after the life event. 相似文献
153.
Miller GD Iverson KM Kemmelmeier M Maclane C Pistorello J Fruzzetti AE Crenshaw KY Erikson KM Katrichak BM Oser M Pruitt LD Watkins MM 《Professional psychology, research and practice》2010,41(3):228-235
Psychotherapists often experience stress while providing psychotherapy, in particular when working with difficult presentations such as suicidality. As part of a larger study on the treatment of recently suicidal college students with borderline traits, 6 therapists in training collected their own salivary samples for alpha-amylase (AA) and cortisol (C) analyses immediately before and after sessions with 2 selected clients. On average, samples were collected for the same therapist-patient dyad throughout the year-long study to ensure that data reflected therapist responses across stages of treatment. Therapists also completed a working alliance questionnaire and rated perceived session difficulty immediately after each selected session. Contrary to expectations, therapists demonstrated elevated levels of stress as measured by AA and C at presession relative to postsession levels. Greater session difficulty was related to more pronounced declines in AA, whereas a stronger working alliance was linked to more pronounced reductions in C. Results suggest that physiological stress responses while working with recently suicidal clients with borderline traits occur primarily in terms of session anticipatory anxiety, whereas AA and C changes may be affected differently by factors such as session difficulty and working alliance. This is a pilot study, limited by its sample size, but the design, findings, and inclusion of physiological measures present an initial step in an essential line of research. 相似文献
154.
康德的《遗著》包含着康德的从自然的理性形而上学向经验科学过渡的未完成的哲学计划,《康德全集》中原有的非批判的版本存在着诸多欠缺,因此新的版面采用发生学的结构分析,通过对康德的工作方式的考察,重现了康德的凌乱而又被密集书写的手稿上的文字产生的时间顺序和逻辑关系,从而最大限度地还原了康德对这一问题的整个思考过程。 相似文献
155.
156.
The elderly are known to exhibit declines in postural control during standing and walking, however little is known about how the elderly react under time-critical and challenging postural situations. The purpose of this study was to examine age-related differences in reaction time (RT) and the pattern of temporal coordination between center of pressure (COP), trunk and head motion during voluntary postural sway movements. Healthy young (n=10; mean=24 years; SD=5 years) and elderly men (n=8; mean=75 years; SD=2 years) stood on a force plate with tri-axial accelerometers attached to the head and lower trunk. Participants were required to generate sway in the anterior-posterior (AP) or medial-lateral (ML) direction in response to an auditory cue during two different testing conditions called Static reaction and Dynamic reaction. Static reactions involved the initiation of voluntary sway in either the AP or ML direction from quiet stance. Dynamic reactions involved an orthogonal switch of voluntary sway between the AP and ML directions. Compared to the young, elderly individuals exhibited slower RT during both Static and Dynamic reaction, and smaller differences in RT and phasing between COP, trunk, and head motion. The results of this study suggest that the elderly adopted more rigid coordination strategies compared to the young when executing a rapid change in direction of whole body motion. The rigid movement strategy of the elderly was presumably generated in an effort to compensate for increased challenge to the maintenance of stability. 相似文献
157.
158.
Spatial bias demonstrated in tasks such as line-bisection may stem from perceptual-attentional (PA) "where" and motor-intentional (MI) "aiming" influences. We tested normal participants' line bisection performance in the presence of an asymmetric visual distracter with a video apparatus designed to dissociate PA from MI bias. An experimenter stood as a distractor to the left or right of a video monitor positioned in either near or far space, where participants viewed lines and a laser point they directed under (1) natural and (2) mirror-reversed conditions. Each trial started with the pointer positioned at either the top left or top right corner of the screen, and alternated thereafter. Data analysis indicated that participants made primarily PA leftward errors in near space, but not in far space. Furthermore, PA, but not MI, bias increased bilaterally in the direction of distraction. In contrast, MI, but not PA, bias was shifted bilaterally in the direction of startside. Results support the conclusion that a primarily PA left sided bias in near space is consistent with right hemisphere spatial attentional dominance. A bottom-up visual distractor specifically affected PA "where" spatial bias while top-down motor cuing influenced MI "aiming" bias. 相似文献
159.
One of the stable hypotheses in systems neuroscience is the relationship between attention and the enhancement of visual responses when an animal attends to the stimulus in its receptive field (Goldberg and Wurtz, 1972 Journal of Neurophysiology 35 560-574). This was first discovered in the superior colliculus of the monkey: neurons in the superficial layers of the superior colliculus responded more intensely to the onset of a stimulus during blocks of trials in which the monkey had to make a saccade to it than they did during blocks of trials in which the monkey had to continue fixating a central point and not respond to the stimulus. This enhancement has been found in many brain regions, including prefrontal cortex (Boch and Goldberg, 1987 Investigative Ophthalmology 28 Supplement, 124), V4 (Moran and Desimone, 1985 Science 229 782-784), and lateral intraparietal area (Colby et al, 1996 Journal of Neurophysiology 76 2841-2852; Colby and Goldberg, 1999 Annual Review of Neuroscience 22 319-349), and even V1 (Lamme et al, 2000 Vision Research 40 1507-1521). In these studies the assumption has been that the monkey attended to the stimulus because the stimulus evoked an enhanced response. In the experiments described here we show that for abruptly appearing stimuli, attention is not related to the initial response evoked by the stimulus, but by the activity present on the salience map in the parietal cortex when the stimulus appears. Attention to the stimulus may subsequently, by a top down signal, sustain the map, but stimuli can as easily be suppressed by top down features as they can be enhanced. 相似文献
160.
Intersectional Identities and the Politics of Altruistic Care in a Low-Income, Urban Community 总被引:1,自引:0,他引:1
Jacqueline S. Mattis Nyasha A. Grayman Sheri-Ann Cowie Cynthia Winston Carolyn Watson Daisy Jackson 《Sex roles》2008,59(5-6):418-428
The literatures on the ways in which social identity and social position (e.g., gender, class, race) inform altruism have developed orthogonally. In this community-based qualitative study we use intersectionality theory to explore the complex ways in which social identity and social structures jointly influence altruism among African American adults (n?=?40) in an urban, economically distressed housing community in New York City. Content analysis of participants’ narratives reveals the ways in which gender, race, ethnicity, class, age, and urbanicity work in tandem to create differential patterns of vulnerability, differential needs, differential commitments to caring for particular subgroups, and informs how altruists are perceived by others. The implications of this work for future research on altruism are highlighted. 相似文献