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   8623篇
  免费   1617篇
  2023年   41篇
  2022年   28篇
  2021年   118篇
  2020年   185篇
  2019年   481篇
  2018年   408篇
  2017年   511篇
  2016年   552篇
  2015年   468篇
  2014年   412篇
  2013年   1084篇
  2012年   514篇
  2011年   501篇
  2010年   419篇
  2009年   421篇
  2008年   420篇
  2007年   386篇
  2006年   314篇
  2005年   324篇
  2004年   307篇
  2003年   318篇
  2002年   294篇
  2001年   184篇
  2000年   160篇
  1999年   134篇
  1998年   110篇
  1997年   84篇
  1996年   82篇
  1995年   77篇
  1994年   88篇
  1993年   56篇
  1992年   75篇
  1991年   45篇
  1990年   52篇
  1989年   31篇
  1988年   23篇
  1987年   40篇
  1986年   39篇
  1985年   37篇
  1984年   36篇
  1983年   51篇
  1982年   41篇
  1981年   32篇
  1980年   29篇
  1979年   39篇
  1978年   44篇
  1977年   27篇
  1976年   28篇
  1974年   13篇
  1973年   13篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
961.
962.
This article is a case study examining the moral careers of members of a constitutional militia group in a Deep South state. Data for this study were gathered through participant observation and interviews with members at meetings, gun shows, shooting ranges, and other activities engaged in by members of this group. This research focuses on how group participants come to identify themselves as members. A typology of true believers, verbal converts, and fellow travelers was developed based on levels of involvement, the potential for violence is discussed, and the findings are framed within the sociological literature.  相似文献   
963.

This article reports the findings from a study that explored how lay people determine the seriousness of criminal offenses. While previous research on this topic has assumed that the perceived seriousness of crimes was primarily determined by differences in physical injury and economic loss, the results of this study indicate that offense seriousness is also affected by judgments subjects make about intent, motive, purpose, “fair play”, and “real harm”.  相似文献   
964.
This paper conceptualizes unnecessary surgery as a form of professional deviance and seeks to conduct a substantial review of the literature on the subject from that perspective. Borrowing from the very nature of professions, one may define deviance among professionals in terms of violating the public service norm. The role that expertise plays in establishing what conduct is deviant is illustrated. The effects of professional autonomy on observing and measuring deviance are explored. Finally, the research findings on unnecessary surgery are summarized. The resulting patterns suggest that applying more traditional theories of deviance to account for the phenomenon may be fruitful.  相似文献   
965.
This study examined specific parenting practices as predictors of prospective levels of children’s hyperactivity/inattention across early- and middle-childhood. Participants were a mixed-sex community cohort (N?=?976; 52 % boys) aged 4–10 years (M?=?6.5, SD?=?1.3). Measures of parenting practices, hyperactivity/inattention, conduct problems, and maternal education were collected at baseline, and hyperactivity/inattention re-assessed at 12-month follow-up. Analyses examined predictors of 12-month hyperactivity/inattention while controlling for levels at baseline. High levels of parental involvement were associated with reduced levels of hyperactivity/inattention, but only across early childhood. Conversely, increases in child age were associated with increased levels of hyperactivity/inattention across middle-childhood, but only among children exposed to high levels of inconsistent discipline. Inconsistent discipline and parental involvement appear to be uniquely associated with prospective hyperactivity/inattention across childhood, independent of associated conduct problems. Our results further suggest some developmental specificity with regard to the effects of these distinct dimensions of parenting on hyperactivity/inattention at different points in childhood.  相似文献   
966.
The continuum of broaching behavior is a conceptual framework explicating how counselors broach or have explicit discussions about racial, ethnic, and cultural factors with their clients during treatment ( Day‐Vines et al., 2007 ). Counselors can assume 5 particular broaching orientations: avoidant, isolating, continuing/incongruent, integrated/congruent, and infusing. The authors operationalized the continuum of broaching behavior using the Broaching Attitudes and Behavior Scale and found support for a 4‐factor model of broaching behavior. El espectro de comportamiento de abordamiento es un marco conceptual que explica cómo los consejeros abordan o tienen discusiones específicas sobre factores raciales, étnicos y culturales con sus clientes durante el tratamiento ( Day‐Vines et al., 2007 ). Los consejeros pueden asumir 5 orientaciones de abordamiento particulares: evasiva, aislante, continua/incongruente, integrada/congruente e infundida. Los autores operativizaron el espectro de comportamiento de abordamiento usando la Escala de Actitudes de Abordamiento y Comportamiento y hallaron respaldo para un modelo del comportamiento de abordamiento de 4 factores.  相似文献   
967.
Local comparisons with a few people displace the influence of general comparisons with many people during self-evaluation of performance and ability. The current research examined whether this local dominance effect obtains in the domain of health risk perception, an outcome of critical importance given its direct relation to preventative health behaviours. Participants received manipulated feedback indicating that their risk of diabetes (Study 1) or a serious car accident (Study 2) ranked above average or below average relative to numerous peers. Additionally, some participants were told that their risk ranked highest or lowest relative to a few peers. Participants evaluated their risk as significantly higher when they only knew that it ranked above average than below average. However, this effect was eliminated among participants who received additional local comparison information. These findings highlight the potential biasing influence of local comparison on everyday health judgment and behaviour.  相似文献   
968.
Implementation intentions, plans relating to when and where behaviours will be performed, have been effective in increasing health behaviour. Two studies are reported that test the impact of this strategy in promoting breast self-examination (BSE), a behaviour shown to aid the early detection of tumours. In study 1, 457 participants were randomly allocated to either implementation intention or control conditions. Implementation intentions significantly increased the likelihood of BSE at one month. The effect of the intervention was marginally significant at six months. Study 2 (N?=?101) tested the efficacy of a collaborative implementation intention intervention that required female participants to plan, with a partner, collaborative BSE performance. Results indicated that both implementation intentions and partner involvement were associated with BSE performance at one month, whilst the collaborative implementation intention intervention showed a 100% success rate. Collaborative implementation intentions may reduce forgetfulness. Interventions that encourage partner involvement in planning and enacting behaviour appear to enhance implementation intention utility.  相似文献   
969.
Past measurement of vitality has included both emotional and physical components. Since aspects of physical vitality such as fatigue can be indicative of physical illness, the usefulness of existing measures of vitality to predict health is limited. This research was designed to examine the psychometric properties of a new Mental Vitality Scale and to test its associations with measures of cardiovascular health over the course of 2 years. The measure of mental vitality was administered in a two-part study using three different samples. In part 1, the reliability and validity of the scale was assessed with a student and a clinic sample. In part 2, medical data on mental and physical health were abstracted over a two-year period from 1041 patient records from a multi-specialty medical practice, and mental vitality assessed through a mailed questionnaire. The findings indicate that the Mental Vitality Scale is a valid and reliable questionnaire for measuring this construct. Mental vitality was also associated with reduced odds of several cardiovascular outcomes and prospective analyses suggest that mental vitality may serve a protective function in the development of cardiovascular disease. The results lend support for the importance of mental vitality as a construct that may be relevant for considering resilience in relation to cardiovascular disease.  相似文献   
970.
Abstract

In order to identify relevant determinants of organ donor registration among Dutch adolescents, a school-based cross-sectional survey was conducted among 145 high school students. Fifty-one percent of respondents indicated they were willing to register as organ donors and 80% reported a positive general attitude towards registration. Various misconceptions about the registration and donation procedure were identified. On average only moderate knowledge levels related to organ donation were found. In order of strongest association, negative outcome expectancies, past behaviour and experience, positive outcome expectancies, and social outcome expectancies proved to be significant predictors of willingness to register as organ donors. Self-efficacy was indirectly associated with willingness via outcome expectancies. Knowledge about organ donation was not significantly associated with willingness. The results suggest that in order to persuade adolescents to register as organ donors, refutational messages will have to be developed to counterargue the prevailing negative outcome expectancies related to organ donation and registration as an organ donor.  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