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   1616篇
  免费   265篇
  国内免费   101篇
  2024年   6篇
  2023年   48篇
  2022年   49篇
  2021年   53篇
  2020年   88篇
  2019年   104篇
  2018年   118篇
  2017年   110篇
  2016年   129篇
  2015年   77篇
  2014年   74篇
  2013年   312篇
  2012年   54篇
  2011年   63篇
  2010年   36篇
  2009年   63篇
  2008年   68篇
  2007年   64篇
  2006年   61篇
  2005年   50篇
  2004年   47篇
  2003年   44篇
  2002年   44篇
  2001年   31篇
  2000年   29篇
  1999年   21篇
  1998年   28篇
  1997年   30篇
  1996年   14篇
  1995年   18篇
  1994年   15篇
  1993年   5篇
  1992年   9篇
  1991年   2篇
  1990年   1篇
  1989年   1篇
  1988年   1篇
  1986年   1篇
  1985年   5篇
  1984年   1篇
  1983年   1篇
  1981年   2篇
  1980年   2篇
  1979年   1篇
  1977年   1篇
  1974年   1篇
排序方式: 共有1982条查询结果,搜索用时 15 毫秒
81.
BackgroundShared spaces, in the context of road transport, often refer to areas shared by unprotected and protected road users and intended to facilitate a living city space for every-one. A basic idea behind shared spaces is to create traffic safety by inducing some uncertainty. This study investigates how young, middle-aged, and elderly pedestrians experience shared space, as well as whether and, if so, how two shared space designs (without and with large flowerpots) affect this experience.MethodThirty-seven participants, divided into three age groups, participated in the study, conducted in Fisherman’s Square, Västervik, Sweden. An adjacent non-signal-regulated pedestrian crossing was used as a control. Two studies – visual scanning and Q studies – were combined. In the visual scanning study, eye-tracking examined how the two designs affected the participants’ visual scanning behaviour (i.e., what participants looked at) as pedestrians. In the Q-study, Q-methodology was used to examine how the two designs affected the participants’ experiences as pedestrians.ResultsThe visual scanning study showed that different age groups were affected in different ways by designs without and with large flowerpots in the shared space. While the middle-aged participants always glanced more often at traffic-relevant objects, and young participants always glanced equally often at traffic-relevant and non-traffic-relevant objects, the elderly participants changed their visual scanning behaviour depending on the design. Without large flowerpots deployed, the elderly participants glanced more often at traffic-relevant than non-traffic-relevant objects. No such difference was obtained when large flowerpots were deployed. The Q-study showed that participants, regardless of age, experienced no great uncertainty in this shared space. The perceived uncertainty, which nevertheless existed, was reduced with large flowerpots deployed to recreate the traditional division with clear zones where pedestrians could stay in relatively car-free areas while motor vehicles had clear paths to travel along.ConclusionThe results suggest that shared space, without large flowerpots, succeeded in inducing some uncertainty, especially among middle-aged and elderly pedestrians. However, deploying large flowerpots seemed to decrease this uncertainty, especially among elderly pedestrians. The major concern prompted by these results is how this decreased uncertainty affects traffic safety. Shared space also needs to be studied from the car driver’s perspective to understand the interaction between different road user groups.  相似文献   
82.
IntroductionDespite well-established evidence on the relationship between social support and posttraumatic growth (PTG), there remains a paucity of evidence regarding the mechanism that underlie this relationship.ObjectiveThis study examined the relationship between social support and PTG, while exploring self-compassion as an intermediatory factor in this association.MethodA cross-sectional study with 447 college students was conducted in Trabzon, Turkey. The data were analyzed using Structural Equation Modelling (SEM).ResultsResults indicated that perceived social support and self-compassion were associated with PTG. Furthermore, a significant indirect effect between social support and PTG via self-compassion emerged.ConclusionBased on the study findings, tailored intervention programs targeting self-compassion and perceived social support in trauma-exposed young adults may be useful for promoting posttraumatic growth.  相似文献   
83.
84.
Despite the influence of social support on physical and mental health, few studies have examined why some close ties are more supportive than others. Though religion provides a rich context for social interaction and a meaningful social identity, it has received little attention in the social support literature. A growing literature on religion and health offers insight into how religion affects social support processes. Using dyadic network data derived from the nationally representative 2006 Portraits of American Life Study, I examine how the religious dimensions of close, nonhousehold ties relate to provision of social support. Results from logistic regression analyses indicate that (controlling for a range of other social tie characteristics) same‐faith ties are significantly more likely to be sources of help “in times of need,” while religious discussion is a strong predictor of receiving both help and advice. The effect of religious homophily is strongest for evangelical Protestants and African‐American Protestants. My findings underscore the need for social support researchers to consider the role of religion in shaping support processes in close relationships.  相似文献   
85.
The goal of the present study was to investigate potential mechanisms of previously documented treatment effects for a brief, 5-session, problem-focused couple therapy for depression in a sample of 35 depressed women and their nondepressed husbands. The primary treatment effects were reducing women’s depressive symptoms and their husbands’ psychological distress and depression-specific burden. Secondarily, treatment resulted in increased relationship satisfaction for both partners. Given these significant treatment changes observed in 5 sessions, we sought to examine the mechanisms of change by testing the following three factors as potential mediators: (a) negative behaviors and attitudes toward depression, (b) support provision, and (c) empathic communication towards the depressed female partners. Women’s depression and husbands’ depression-specific burden were alleviated by positive changes in their illness-related attitudes and behaviors. Improvements in women’s marital satisfaction were also mediated by positive change in their illness-related attitudes and behaviors, along with perceptions of increased positivity and support from their husbands. Findings highlight the importance of targeting specific treatment agents in a brief couple therapy for depression such as psychoeducation about depression and support-building to increase partners’ understanding and acceptance of the illness, and teaching communication skills to reduce negative behaviors and criticism that are replaced by more empathic communication towards the depressed individual.  相似文献   
86.
The purpose of this study was to examine the relationships between perceived growth as a physician (i.e., positive psychological changes experienced as a result of the professional experience) and burnout after controlling for the effects of perceived family support, dispositional resilience, age, and marital status among physicians. Physicians (n = 289) rated perceived support from family and completed the short form of the Posttraumatic Growth Inventory, the Resilience Scale, and Maslach Burnout Inventory. Results of hierarchical regression analyses revealed that the addition of perceived growth significantly improved prediction of resilience and perceived family support for burnout, showing that higher growth, resilience, and family support all were associated with lower levels of burnout. Moreover, the effects of growth on depersonalization, a domain of burnout, were stronger for physicians who perceived a lower level of family support, whereas the effects of growth on personal accomplishment, another domain of burnout, were stronger for physicians who showed a lower level of dispositional resilience. Current results have clinical implications for understanding protective factors for burnout, that is, a sense of personal growth may be a key factor for physicians who may be less resilient or may not perceive strong family support.  相似文献   
87.
心理问题对肿瘤的发生、治疗和预后产生重要影响,相关研究已经提示了大量证据,受到人们广泛的重视。本文笔者阐述了肿瘤心理学学科构建的必要性及意义;提出了肿瘤患者发病前心理因素的作用方式(慢性应激和触发作用)、发病后的最主要心理特征(安全感缺失)、心理支持的核心目标(帮助患者重获安全感);强调此时给予心理支持类似于是亟需修补的"短板";并引入了笔者实践和理论总结基础上形成的肿瘤患者心理支持的操作方法。  相似文献   
88.
心理问题对肿瘤的发生、治疗和预后产生重要影响,相关研究已经提示了大量证据,受到人们广泛的重视.本文笔者阐述了肿瘤心理学学科构建的必要性及意义;提出了肿瘤患者发病前心理因素的作用方式(慢性应激和触发作用)、发病后的最主要心理特征(安全感缺失)、心理支持的核心目标(帮助患者重获安全感);强调此时给予心理支持类似于是亟需修补的“短板”;并引入了笔者实践和理论总结基础上形成的肿瘤患者心理支持的操作方法.  相似文献   
89.
90.
目前肝衰竭发病率和病死率仍然较高,肝衰竭成为威胁患者生命的严重疾病。基于肝脏具有强大再生能力,人工肝支持系统作为一种“过渡”措施,为肝衰竭患者的肝功能恢复赢得时间。人工肝支持系统根据性质不同分为非生物型人工肝、生物型人工肝和混合型人工肝。目前非生物型人工肝已在肝病治疗领域被广泛应用,但生物型及混合型人工肝的临床应用还存在很多问题需要进一步研究和解决。因此本文对人工肝的作用、临床应用现状、存在问题及研究进展进行综述。  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