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   769篇
  免费   45篇
  国内免费   1篇
  815篇
  2023年   5篇
  2021年   5篇
  2020年   10篇
  2019年   20篇
  2018年   27篇
  2017年   35篇
  2016年   36篇
  2015年   21篇
  2014年   33篇
  2013年   79篇
  2012年   34篇
  2011年   43篇
  2010年   26篇
  2009年   33篇
  2008年   34篇
  2007年   34篇
  2006年   30篇
  2005年   30篇
  2004年   26篇
  2003年   25篇
  2002年   21篇
  2001年   14篇
  2000年   11篇
  1999年   9篇
  1998年   5篇
  1997年   10篇
  1996年   6篇
  1995年   5篇
  1994年   5篇
  1993年   8篇
  1992年   7篇
  1991年   15篇
  1989年   7篇
  1988年   4篇
  1986年   5篇
  1985年   6篇
  1983年   6篇
  1981年   4篇
  1980年   5篇
  1978年   6篇
  1977年   4篇
  1973年   4篇
  1972年   5篇
  1971年   3篇
  1969年   3篇
  1968年   4篇
  1967年   5篇
  1966年   4篇
  1963年   3篇
  1961年   3篇
排序方式: 共有815条查询结果,搜索用时 15 毫秒
61.
The purpose of this study is to see if a pantheistic view of God (i.e., God is all around us in nature), a theistic view of God (i.e., God is the creator of the universe who protects us), and a deistic view of God (i.e., God created the universe and then left people to fend for themselves) moderate the relationship between chronic financial strain and three measures of health (self-rated health, the number of chronic conditions, and functional disability). The data come from a recent nationwide survey of adults of all ages (N = 2,768). The findings suggest that neither pantheistic nor theistic views of God offset the effects of financial strain on any of the health outcomes. In contrast, the data further reveal that the relationship between ongoing economic difficulties and all three health outcomes is more pronounced for study participants who have a deistic view of God.  相似文献   
62.
We examined trajectories of academic and social functioning in children with attention-deficit/hyperactivity disorder (ADHD) to identify those who might be at risk for especially severe levels of academic and social impairment over time. We estimated a series of growth mixture models using data from two subsamples of children participating in the NIMH Collaborative Multisite Multimodal Treatment Study of Children with ADHD (MTA) including those with at least baseline and 96-month data for reading and mathematics achievement (n = 392; 77.3% male; M age = 7.7; SD = 0.8) or social skills ratings from teachers (n = 259; 74.9% male; M age = 7.6; SD = 0.8). We compared latent trajectories for children with ADHD to mean observed trajectories obtained from a local normative (i.e., non-ADHD) comparison group (n = 289; 80.6% male; M age = 9.9; SD = 1.1). Results indicated six latent trajectory classes for reading and mathematics and four classes for teacher social skills ratings. There was not only a relationship between trajectories of inattention symptoms and academic impairment, but also a similarly strong association between trajectory classes of hyperactive-impulsive symptoms and achievement. Trajectory class membership correlated with socio-demographic and diagnostic characteristics, inattention and hyperactive-impulsive symptom trajectories, externalizing behavior in school, and treatment receipt and dosage. Although children with ADHD display substantial heterogeneity in their reading, math, and social skills growth trajectories, those with behavioral and socio-demographic disadvantages are especially likely to display severe levels of academic and social impairment over time. Evidence-based early screening and intervention that directly address academic and social impairments in elementary school-aged children with ADHD are warranted. The ClinicalTrials.gov identifier is NCT00000388.  相似文献   
63.
Biomedical research policy in recent years has often tried to make such research more ‘translational’, aiming to facilitate the transfer of insights from research and development (R&D) to health care for the benefit of future users. Involving patients in deliberations about and design of biomedical research may increase the quality of R&D and of resulting innovations and thus contribute to translation. However, patient involvement in biomedical research is not an easy feat. This paper discusses the development of a method for involving patients in (translational) biomedical research aiming to address its main challenges.After reviewing the potential challenges of patient involvement, we formulate three requirements for any method to meaningfully involve patients in (translational) biomedical research. It should enable patients (1) to put forward their experiential knowledge, (2) to develop a rich view of what an envisioned innovation might look like and do, and (3) to connect their experiential knowledge with the envisioned innovation. We then describe how we developed the card-based discussion method ‘Voice of patients’, and discuss to what extent the method, when used in four focus groups, satisfied these requirements. We conclude that the method is quite successful in mobilising patients’ experiential knowledge, in stimulating their imaginaries of the innovation under discussion and to some extent also in connecting these two. More work is needed to translate patients’ considerations into recommendations relevant to researchers’ activities. It also seems wise to broaden the audience for patients’ considerations to other actors working on a specific innovation.  相似文献   
64.
Research reveals that a number of different aspects of religious involvement are associated with happiness. However, researchers have yet to provide an overarching theoretical explanation for how multiple dimensions of religion might be associated with happiness. The purpose of this study is to develop and test a conceptual model that includes the following core hypotheses: (1) people who attend worship services more often tend to be more committed to their faith; (2) people who are more committed to their faith are more likely to be compassionate; (3) compassionate individuals are more likely to provide emotional support to significant others; and (4) people who provide support to others tend to be happier. Data from a recent nationwide survey in the United States (N = 3,010) provides support for each hypothesis. The theoretical implications of these finding are discussed.  相似文献   
65.
66.
This study assesses denominational differences in well-being among older Mexican Americans and examines differences between this group and older non-Hispanic Whites. Data came from two representative surveys of the US older adult population, focusing on each of these ethnic groups (N?=?996 and N?=?612, respectively). Evangelical Mexican Americans reported fewer symptoms of depression and greater life satisfaction than their Catholic counterparts, but there were no such differences among non-Hispanic Whites. Potential explanatory mechanisms examined included differences in frequency of attendance at religious services, use of positive and negative religious coping, and social support or conflict in the congregation. Among these, only the relationship of attendance and denomination varied by ethnicity, but this factor did not appear to explain differences in well-being. We propose that aspects of conflict between Catholic and Mexican-American identities contribute to making Evangelical affiliation more strongly related to well-being in this group.  相似文献   
67.
Epidemiologic, prospective, and retrospective research confirms that family relational variables are significant risk factors for the development of mental and physical health problems in children as well as adults. In addition, relationships also play a moderating role in the maintenance, exacerbation, or amelioration of chronic health problems. Although acknowledgment of the importance of these variables in the pathophysiology of a number of health conditions is reaching more prominence, the integration of assessments of family factors as part of standard health care has made little progress. With the arrival of the Affordable Care Act in the United States, there is a desire for earlier identification of these risk factors, and the ability to implement prevention programs that reduce risk, and enhance protective factors. On a global level, there is increased awareness of the health impact of relational problems, for example, many countries have attempted to implement programs to decrease domestic violence. More reliable and standardized assessments of key relational processes will enhance both of these missions, and allow comparison of a variety of prevention and intervention programs. This article discusses progress over the last decade in constructing more reliable definitions of relationship processes, how these have been integrated into the Diagnostic and Statistical Manual 5th edition (DSM‐5), and progress toward implementation into the World Health Organization's International Classification of Diseases (ICD‐11).  相似文献   
68.
In newly formed groups, informal hierarchies emerge automatically and readily. In this study, we argue that emergent group hierarchies enhance group performance (Hypothesis 1) and we assume that the more the power hierarchy within a group corresponds to the task‐competence differences of the individual group members, the better the group performs (Hypothesis 2). Twelve three‐person groups and 28 four‐person groups were investigated while solving the Winter Survival Task. Results show that emerging power hierarchies positively impact group performance but the alignment between task‐competence and power hierarchy did not affect group performance. Thus, emergent power hierarchies are beneficial for group performance and although they were on average created around individual group members' competence, this correspondence was not a prerequisite for better group performance.  相似文献   
69.
70.
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