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   26982篇
  免费   380篇
  国内免费   7篇
  2023年   73篇
  2022年   109篇
  2021年   137篇
  2020年   175篇
  2019年   184篇
  2018年   3683篇
  2017年   3012篇
  2016年   2476篇
  2015年   373篇
  2014年   296篇
  2013年   1018篇
  2012年   1045篇
  2011年   2802篇
  2010年   2776篇
  2009年   1658篇
  2008年   2049篇
  2007年   2457篇
  2006年   333篇
  2005年   483篇
  2004年   347篇
  2003年   306篇
  2002年   240篇
  2001年   123篇
  2000年   160篇
  1999年   92篇
  1998年   64篇
  1997年   50篇
  1996年   58篇
  1995年   37篇
  1994年   26篇
  1993年   29篇
  1992年   55篇
  1991年   38篇
  1990年   46篇
  1989年   33篇
  1988年   48篇
  1987年   33篇
  1986年   25篇
  1985年   23篇
  1984年   39篇
  1983年   18篇
  1980年   18篇
  1979年   21篇
  1978年   20篇
  1976年   18篇
  1973年   17篇
  1972年   22篇
  1971年   17篇
  1969年   19篇
  1968年   20篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
941.
This study is based on exploring the trust between peers and the individual characteristics related to homophobic bullying in adolescence. Participants were 334 adolescents (141 boys and 193 girls) aged from 15 to 20 years. Participants completed the homophobic bullying scale, to investigate bullying actions towards sexual minorities, the personal attributes questionnaire, for personal characteristics, and the inventory of parent and peer attachment, to the trust between peers. The results demonstrated how female participants manifested a higher level of interpersonal traits and trust among peers than boys. Results showed how a lack of trust between peers predicts homophobic bullying. Nevertheless, we found that the lack of interpersonal characteristics represents a variable that likely mediates the relationship between lack of trust in peers and homophobic bullying. Theoretical and practical implications are discussed.  相似文献   
942.
Sexual and gender identity development theories in psychology and sociology exert considerable influence over discourse on gender and sexuality, shaping key domains such as counseling, education, and social work, as well as public policy and advocacy. While a robust body of literature has developed in critique of such theories and models, they continue to be applied in the Global South without much thought for their relevance to various non-Western cultural contexts. The current study explores the fit of these identity development theories to the experiences of 15 non-heterosexual and transgender individuals in Sri Lanka, gathered through a qualitative study of the question in 2016. These participants articulated gender and sexual self-conceptions that were incongruent with major identity development theories in significant ways. A broad majority failed to endorse central or salient sexual identities, while demonstrating a fluidity in object choice, sex roles, and sex acts, thus rupturing the theoretical notion of stable and coherent identities. Transgender participants did not demonstrate identity synthesis or pride and complicated theoretical understandings of sexual intimacy. These findings highlight the necessity of considering individual differences and cultural contexts when studying gender and sexuality and the dangers of universalizing theories across cultural differences.  相似文献   
943.
944.
The occupational physicians are obliged, like any doctor, to respect the ethical obligations imposed on their profession, including in the exercise of the missions specific to occupational medicine and contained in the Labor Code. The occupational physician is not isolated and works in a multidisciplinary team of a health service at work. He must communicate with other health professionals, but also with employers, representative bodies of staff. Medical confidentiality holds a special place in the triangular relationship between the occupational physician, the employee and the employer. The medical practice in the field of occupational health requires that many provisions of the Labor Code be followed, including the respect of the secret of manufacture and the position of advising employers and employees. The occupational physician must communicate with the employer in order to best achieve his mission, but in practice, it may be difficult for the occupational doctor to make his recommendations heard to improve the working conditions of employees without power, when he cannot argue his opinions on medical information.  相似文献   
945.
This article deals with relationships and marriages of the Tlingit with immigrants from the Russian Empire as well as with representatives of other European and non-European peoples during the period when Alaska belonged to the Russian Empire. Matrimonial relations existed in two variants: legal, sanctified by the church, and in the form of permanent extramarital cohabitation or casual relationships. The latter variant absolutely predominated. With this, there was a sharply reflected gender imbalance, since men absolutely predominated among the immigrants, and therefore Tlingit women emerged in the role of marriage partners in the overwhelming majority of cases. A directly opposite pattern was observed in Tlingit contacts with the Athapaskans and to some extent with the Eyak. Matrimonial connections exerted influence on the workings of the Russian colonization, stimulated growth in mixed populations, and facilitated gradual acculturation of the Tlingit, along with contributing to the expansion of their ethnic territory.  相似文献   
946.
The objective of this study was to identify the perception of body image by Tunisian women and their spouses and to examine its impact on female sexuality. Our study involved 300 Tunisian women who had been married for at least 1 year and consulted in primary care medicine during the months of June and July 2016. Each participant completed a questionnaire covering four areas: women’s perception of their body, the perception of the spouses of the latter as it was reported by the participants, sexual activity, and the impact of body perception on sexual activity. The participants were satisfied with their bodies in 51% of cases. This satisfaction was associated with perceiving the body as physically attractive (p?=?0.007), young (p?=?0.047) and as a source of confidence (p?<?0.001). Compared to women dissatisfied with their bodies, those satisfied declared satisfaction of sexual desire (p?=?0.005), reaching orgasm (p?=?0.001), taking the initiative in sexual activity (p?=?0.003) and preparation for sex (p?=?0.006). Perceived satisfaction of the partner with the female body was related to a more positive sexuality in women, specifically to women’s sexual satisfaction (p?=?0.018), women taking sexual initiative (p?=?0.014) and preparation for sex (p?=?0.001). Our study indicates the important impact of a positive perception of the body image of Tunisian women by themselves and by their spouses on their sexuality. It would be interesting to consider these aspects in the management of female sexual disorders.  相似文献   
947.
948.
The adverse social and physical conditions of homelessness pose significant developmental risks for children, which may be compounded or buffered by the quality of parenting behaviour they are exposed to. There is currently a limited understanding of how parents approach their care-giving role and responsibilities while adjusting to the experience of homelessness. Advancing knowledge in this area is essential for developing acceptable, appropriate and effective interventions to support highly marginalised and vulnerable homeless families. This review explored homeless parents’ perceptions of how homelessness affects their parenting behaviour and identified adaptive strategies that parents may use to mitigate the potentially negative impacts of homelessness on the quality of care-giving. A systematic search of four electronic databases (ASSIA, PsycINFO, Web of Science and MEDLINE) identified 13 published qualitative studies, all originating from the USA, which explored parenting behaviour in homeless contexts. The studies were critically appraised using the CASP qualitative assessment tool. Thematic synthesis identified the following determinants of parenting behaviour; negative self-concept in the parental role, parental mental health, material resources, challenges to autonomy and self-efficacy, daily hassles, physical environment and service context, stigma, child characteristics and lack of support. These were synthesised thematically using existing models of parenting determinants and positive parenting. Findings indicate substantive impacts of homelessness on parental mental health, parenting authority, material resources, parenting environments and social support. Parents developed a number of adaptive methods to negotiate the challenges of homeless parenting such as maintaining a positive mindset, cherishing the parental role and developing practical strategies. We conclude with recommendations that service providers should tailor parenting support to resource-constrained circumstances and that further research is required in order to better understand experiences of homeless parents in other international contexts.  相似文献   
949.
As social media use becomes increasingly widespread among adolescents, research in this area has accumulated rapidly. Researchers have shown a growing interest in the impact of social media on adolescents’ peer experiences, including the ways that the social media context shapes a variety of peer relations constructs. This paper represents Part 2 of a two-part theoretical review. In this review, we offer a new model for understanding the transformative role of social media in adolescents’ peer experiences, with the goal of stimulating future empirical work that is grounded in theory. The transformation framework suggests that the features of the social media context transform adolescents’ peer experiences by changing their frequency or immediacy, amplifying demands, altering their qualitative nature, and/or offering new opportunities for compensatory or novel behaviors. In the current paper, we consider the ways that social media may transform peer relations constructs that often occur at the group level. Our review focuses on three key constructs: peer victimization, peer status, and peer influence. We selectively review and highlight existing evidence for the transformation of these domains through social media. In addition, we discuss methodological considerations and key conceptual principles for future work. The current framework offers a new theoretical perspective through which peer relations researchers may consider adolescent social media use.  相似文献   
950.
Preeminent theories of attention-deficit/hyperactivity disorder (ADHD) suggest that motivation deficits are core underlying features of the disorder. However, it is currently unclear whether empirical evidence supports the assertion that significant group (ADHD v. comparison) differences in motivation exist or that problems with motivation contribute to the functional impairments that youth with ADHD experience. Accordingly, this review focused on evaluating and summarizing the empirical literature on the presence of motivation deficits and their association with functional outcomes in samples of youth with ADHD. Twenty studies met the review inclusion criteria. Results support the assertion that youth with ADHD have lower academic-related motivation in comparison to their peers and that motivation plays an important role in academic outcomes, with the strongest evidence to date for reading achievement. However, the available evidence is limited, and few existing studies are aligned with the much larger theoretical and empirical motivation literature in typically developing youth. Given preliminary evidence that motivation plays a role in the academic impairments of youth with ADHD, the review concludes with a discussion of whether current ADHD interventions adequately target motivation and highlights important future directions.  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