全文获取类型
收费全文 | 5574篇 |
免费 | 1563篇 |
国内免费 | 2篇 |
出版年
2023年 | 50篇 |
2022年 | 38篇 |
2021年 | 118篇 |
2020年 | 190篇 |
2019年 | 469篇 |
2018年 | 367篇 |
2017年 | 525篇 |
2016年 | 510篇 |
2015年 | 431篇 |
2014年 | 404篇 |
2013年 | 790篇 |
2012年 | 391篇 |
2011年 | 313篇 |
2010年 | 330篇 |
2009年 | 295篇 |
2008年 | 297篇 |
2007年 | 212篇 |
2006年 | 212篇 |
2005年 | 178篇 |
2004年 | 151篇 |
2003年 | 150篇 |
2002年 | 137篇 |
2001年 | 105篇 |
2000年 | 87篇 |
1999年 | 56篇 |
1998年 | 13篇 |
1997年 | 19篇 |
1996年 | 24篇 |
1995年 | 21篇 |
1994年 | 22篇 |
1993年 | 17篇 |
1992年 | 21篇 |
1991年 | 18篇 |
1990年 | 21篇 |
1989年 | 13篇 |
1988年 | 12篇 |
1987年 | 14篇 |
1986年 | 19篇 |
1985年 | 7篇 |
1984年 | 9篇 |
1983年 | 5篇 |
1981年 | 9篇 |
1980年 | 4篇 |
1979年 | 8篇 |
1978年 | 7篇 |
1977年 | 12篇 |
1976年 | 5篇 |
1975年 | 4篇 |
1970年 | 3篇 |
1963年 | 3篇 |
排序方式: 共有7139条查询结果,搜索用时 15 毫秒
11.
Carol VanZile-Tamsen Maria Testa Lisa L Harlow Jennifer A Livingston 《Health psychology》2006,25(2):249-254
The current study was designed to gain a better understanding of the nature of the relationship between substance use and sexual risk taking within a community sample of women (N = 1,004). Using confirmatory factor analysis, the authors examined the factor structure of sexual risk behaviors and substance use to determine whether they are best conceptualized as domains underlying a single, higher order, risk-taking propensity. A 2 higher order factor model (sexual risk behavior and substance use) provided the best fit to the data, suggesting that these 2 general risk domains are correlated but independent factors. Sensation seeking had large general direct effects on the 2 risk domains and large indirect effects on the 4 first-order factors and the individual indicators. Negative affect had smaller, yet still significant, effects. Impulsivity and anxiety were unrelated to sexual health risk domains. 相似文献
12.
Reducing STD/HIV Stigmatizing Attitudes Through Community Popular Opinion Leaders in Chinese Markets
Reducing STDs and HIV/AIDS incidence requires campaigns designed to change knowledge, attitudes, and practices of risky sexual behavior. In China, a significant obstacle to such changes is the stigma associated with these diseases. Thus 1 campaign intervention strategy is to train credible community leaders to discuss these issues in everyday social venues. This study tested the effectiveness of such an approach on reducing HIV/AIDS stigma, across 2 years, from a sample of over 4,500 market vendors, in 3 conditions. Results showed an increasing growth in market communication about intervention messages, and concomitant declines in stigmatizing attitudes, across time, with the greatest changes in community popular opinion leaders, significant changes in intervention nonopinion leaders, and little change in the control markets. 相似文献
13.
14.
How do speakers design what they say in order to communicate effectively with groups of addressees who vary in their background knowledge of the topic at hand? Prior findings indicate that when a speaker addresses a pair of listeners with discrepant knowledge, that speakers Aim Low, designing their utterances for the least knowledgeable of the two addressees. Here, we test the hypothesis that speakers will depart from an Aim Low approach in order to efficiently communicate with larger groups of interacting partners. Further, we ask whether the cognitive demands of tracking multiple conversational partners' perspectives places limitations on successful audience design. We find that speakers can successfully track information about what up to four of their partners do and do not know in conversation. When addressing groups of 3–4 addressees at once, speakers design language based on the combined knowledge of the group. These findings point to an audience design process that simultaneously represents the perspectives of multiple other individuals and combines these representations in order to design utterances that strike a balance between the different needs of the individuals within the group. 相似文献
15.
Population attributable risk (PAR) estimates have been used in suicide research to evaluate the impact of psychosocial and socioeconomic risk factors, including affective disorders, traumatic life events, and unemployment. A parallel concept of preventive fraction (PF), allowing for estimation of the impact of protective factors and effectiveness of preventive interventions, is practically unknown in suicidology. The study authors discuss the application of both concepts to suicide research and prevention, and review literature on the subject. Despite several methodological and conceptual limitations, both PAR and PF are valuable instruments to inform development and evaluation of suicide prevention programs. 相似文献
16.
17.
Wolfgang Hell Gerd Gigerenzer Siegfried Gauggel Maria Mall Michael Müller 《Memory & cognition》1988,16(6):533-538
If subjects are asked to recollect a former response after having been informed about the correct response, their recollection tends to approach the correct response. This effect has been termedhindsight bias. We studied hindsight bias in an experiment requiring numerical responses to almanac-type questions for physical quantities. We varied (1) the time at which the correct information was provided, (2) the encoding of the original responses by asking/not asking subjects to give a reason for the respective response, and (3) the motivation to recall correctly. We found that hindsight is less biased if reasons are given and if the correct information is provided at an earlier time. Motivation had only interactive effects: (1) With high motivation to recall correctly, the time the correct information was provided had no influence. (2) With reasons given, the variation of motivation showed no effect. These results rule out purely motivational and purely automatic explanations. 相似文献
18.
Dr. Maria Bosch 《Contemporary Family Therapy》1988,10(2):98-113
How is the concept of power integrated into the systemic organismic paradigm? Power concepts, especially Kantor and Lehr's six dimensions of distance regulation mechanisms, are related to several models of family therapy. Power is found to be a part of the Gestalt formation process of Perls, a process of dynamic selfregulation. Each family therapy model is regarded as part of an integrating process. A theory of conflict strategy and of integration strategy in therapy is developed. The article is intended to promote comparison and exploratory discussion around different models of family therapy. 相似文献
19.
Marianne Kastrup MD Inge Kemp Genefke MD Inge Lunde MD JØrgen Ortmann MD 《Contemporary Family Therapy》1988,10(4):280-287
This paper describes approaches taken at the International Rehabilitation and Research Centre in Copenhagen to helping torture victims and their families cope with the exposure to and aftermath of torture. 相似文献
20.
Maurice A. Feldman Laurie Case Maria Garrick Wanda MacIntyre-Grande Jayne Carnwell Bruce Sparks 《Journal of applied behavior analysis》1992,25(1):205-215
The present study identified and remediated child-care skill deficits in parents with developmental disabilities to reduce their risk of child neglect. Eleven mothers with developmental disabilities who were considered by social service and child welfare agencies to be providing neglectful child care were found in baseline to have several important child-care skill deficits (e.g., bathing, diaper rash treatment, cleaning baby bottles) compared to nonhandicapped mothers. Parent training (consisting of verbal instructions, pictorial manuals, modeling, feedback, and reinforcement) resulted in rapid acquisition and maintenance of child-care skills in all mothers. Mean percentage correct scores increased from 58% in baseline to 90% in training and 91% in follow-up (M = 31 weeks). The latter two scores compare favorably to the mean score (87%) of 20 nonhandicapped mothers on the same skills. Where observable, parent training was associated with corresponding benefits to the children (e.g., elimination of diaper rash and cradle cap, increased weight gain, successful toilet training). These results indicate that parent training may be a viable option to the removal of the child from the home when parenting skill deficits place the child's well-being in jeopardy. 相似文献