全文获取类型
收费全文 | 45557篇 |
免费 | 1744篇 |
国内免费 | 14篇 |
专业分类
47315篇 |
出版年
2019年 | 497篇 |
2018年 | 777篇 |
2017年 | 695篇 |
2016年 | 775篇 |
2015年 | 576篇 |
2014年 | 671篇 |
2013年 | 4118篇 |
2012年 | 1167篇 |
2011年 | 1228篇 |
2010年 | 779篇 |
2009年 | 715篇 |
2008年 | 1122篇 |
2007年 | 1016篇 |
2006年 | 949篇 |
2005年 | 795篇 |
2004年 | 761篇 |
2003年 | 770篇 |
2002年 | 755篇 |
2001年 | 1513篇 |
2000年 | 1429篇 |
1999年 | 1064篇 |
1996年 | 564篇 |
1995年 | 543篇 |
1994年 | 524篇 |
1993年 | 503篇 |
1992年 | 1064篇 |
1991年 | 976篇 |
1990年 | 969篇 |
1989年 | 859篇 |
1988年 | 865篇 |
1987年 | 847篇 |
1986年 | 825篇 |
1985年 | 820篇 |
1984年 | 728篇 |
1983年 | 588篇 |
1982年 | 490篇 |
1981年 | 489篇 |
1979年 | 701篇 |
1978年 | 513篇 |
1976年 | 465篇 |
1975年 | 641篇 |
1974年 | 648篇 |
1973年 | 734篇 |
1972年 | 676篇 |
1971年 | 611篇 |
1970年 | 545篇 |
1969年 | 532篇 |
1968年 | 687篇 |
1967年 | 556篇 |
1966年 | 560篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
951.
Sarah B. Woods Angela Hiefner Patricia N. E. Roberson Nida Zahra Elizabeth Mayfield Arnold Victoria Udezi 《Family process》2023,62(1):230-253
African Americans are at significantly greater risk of hypertension and worse cardiovascular outcomes than other racialized groups, yet hypertension intervention effects remain limited. Thus, it is necessary to understand the potential mechanisms whereby interventions may be more effectively targeted to improve health. Supported by prior research evidence and guided by the Biobehavioral Family Model, this study examined associations between family relationship quality, psychological wellbeing, and self-management behaviors for African Americans with hypertension. Data were pooled from three Midlife Development in the U.S. projects, resulting in a sample of 317 African Americans (63.4% female, Mage = 53.32) with self-reported high blood pressure in the past 12 months. We tested four cross-sectional multiple mediator models, with depressed mood and environmental mastery mediating associations between family strain and exercise, smoking, problematic alcohol use, and stress-eating. Environmental mastery mediated the association between greater family strain and decreased odds of achieving recommended exercise levels; greater odds of reporting problematic alcohol use; and greater stress-eating. Though family strain was associated with depressed mood in each model, this variable did not serve as an indirect pathway to self-management behaviors. Family strain, and the potential pathway identified via environmental mastery, may be a meaningful predictor of disease self-management for African Americans with hypertension. Longitudinal studies are needed to examine directionality and to support intervention trials for improving self-management and hypertension outcomes. 相似文献
952.
Katherine A. Hirchak PhD MHPA Melanie Nadeau PhD MPH Angel Vasquez PhD Alexandra Hernandez-Vallant MS Kyle Smith Cuong Pham MD Karen Anderson Oliver PhD Paulette Baukol BS Karen Lizzy CDP Racquel Shaffer CPC Jalene Herron MS Aimee N. C. Campbell PhD Kamilla L. Venner PhD The CTN- Collaborative Board 《American journal of community psychology》2023,71(1-2):174-183
American Indian/Alaska Native (AI/AN) communities are disproportionally impacted by the opioid overdose epidemic. There remains a dearth of research evaluating methods for effectively implementing treatments for opioid use disorder (OUD) within these communities. We describe proceedings from a 2-day Collaborative Board (CB) meeting tasked with developing an implementation intervention for AI/AN clinical programs to improve the delivery of medications to treat OUD (MOUD). The CB was comprised of Elders, cultural leaders, providers, individuals with lived experience with OUD, and researchers from over 25 communities, organizations, and academic institutions. Conversations were audio-recorded, transcribed, and coded by two academic researchers with interpretation oversight provided by the CB. These proceedings provided a foundation for ongoing CB work and a frame for developing the program-level implementation intervention using a strength-based and holistic model of OUD recovery and wellbeing. Topics of discussion posed to the CB included engagement and recovery strategies, integration of extended family traditions, and addressing stigma and building trust with providers and clients. Integration of traditional healing practices, ceremonies, and other cultural practices was recommended. The importance of centering AI/AN culture and involving family were highlighted as priorities for the intervention. 相似文献
953.
Civic actions are behaviours intended to improve conditions for others or help shape a community's future. Such actions vary widely from voting to voluntary helping, from canvassing to community organizing, and attempts have been made to categorize the array of civic actions. However, the question of why young adults engage in some types of civic actions versus others is not well understood. Using data from 598 White, cisgender, heterosexual young adults in the United States, we examined the relations between individual civic efficacy, collective civic efficacy, and seven actions: writing social media posts, voting, buycotting, volunteering, participating in an organization, supporting political candidates, and protesting. We hypothesized that individual efficacy would be positively related to all seven actions, but collective efficacy would be more strongly related to collective or political actions, compared to the individual or civil ones. Logistic regression analyses showed that individual efficacy positively predicted engagement in all seven civic actions. Individual and collective efficacy had a complex curvilinear relation with buycotting and supporting political candidates. Implications for future research and applications aimed at promoting civic engagement amongst young adults are discussed. Please refer to the Supplementary Material section to find this article's Community and Social Impact Statement . 相似文献
954.
This review involved a systematic analysis of equivalence-based instruction (EBI) that aimed to improve food-size interventions in diverse populations. Systematic searches identified seven studies published since 2010 that met inclusion criteria. These studies were analyzed according to their participants, design, setting, content taught, training structures, training protocol, testing format, treatment integrity, and outcomes. Results showed EBI procedures for teaching food estimation skills have been mostly implemented with adults. The type of content taught in the identified studies included carbohydrate ranges, portion size with food and non-food items, measuring cups and nutritional content of calories. Majority of included studies used one-to-many training structure and simultaneous protocols for teaching stimulus relations. Five studies completed a generalization probe and three studies reported treatment integrity data. Overall, all participants demonstrated skill acquisition of novel relations between food and portion measurement aides. Recommendations for future research and clinical applications of EBI in teaching food portion estimation are presented. 相似文献
955.
Christopher D. Nye Kevin A. Hoff 《International Journal of Selection & Assessment》2023,31(4):494-499
The paper by Wille and De Fruyt suggests that vocational interests should be used throughout the human resources cycle and provides a useful model that can facilitate the application of interests throughout this process. This commentary builds on their review to discuss the unique benefits and challenges of implementing vocational interests in the employee selection process. Using research from the employee selection literature, we also discuss potential solutions for many of the issues raised by Wille and De Fruyt. Therefore, our commentary is meant to supplement the focal article and answer specific questions about why and how vocational interests can be used in this high-stakes setting. 相似文献
956.
Sydney L. Reichin Danielle M. Tarantino Rustin D. Meyer 《International Journal of Selection & Assessment》2023,31(3):456-468
COVID-19 has abruptly and unexpectedly transformed nearly every aspect of work, including but not limited to increased unemployment rates and uncertainty regarding future job prospects. Response distortion has always been a concern given that many organizations rely on information that is self-reported by applicants regarding their potential employability (e.g., responses to self-reported personality instruments, resumes, interview responses). Drawing from the Valence-Instrumentality-Expectancy (VIE) theory of motivation, we propose that the uncertainty surrounding jobs may lead to amplified distorted responses on these measures in areas where COVID-19 was most salient. In a sample of 213 working adults [~50% female, age M = 38.48], the present study shows that increases in response distortion on a measure of conscientiousness were more pronounced as a function of (a) local COVID positivity rates and (b) job type, such that frontline workers distorted their responses the most. Findings are discussed in the context of VIE theory, personality measurement, and challenges with maintaining effective selection procedures. 相似文献
957.
958.
959.
Animal Cognition - Learning by observing others (i.e. social learning) is an important mechanism to reduce the costs of individual learning. Social learning can occur between conspecifics but also... 相似文献
960.