全文获取类型
收费全文 | 15609篇 |
免费 | 499篇 |
国内免费 | 21篇 |
专业分类
管理学 | 1818篇 |
劳动科学 | 1篇 |
民族学 | 115篇 |
人才学 | 1篇 |
人口学 | 1274篇 |
丛书文集 | 548篇 |
理论方法论 | 1346篇 |
综合类 | 1368篇 |
社会学 | 7579篇 |
统计学 | 2079篇 |
出版年
2023年 | 99篇 |
2022年 | 84篇 |
2021年 | 135篇 |
2020年 | 261篇 |
2019年 | 311篇 |
2018年 | 417篇 |
2017年 | 605篇 |
2016年 | 431篇 |
2015年 | 343篇 |
2014年 | 411篇 |
2013年 | 2302篇 |
2012年 | 650篇 |
2011年 | 615篇 |
2010年 | 567篇 |
2009年 | 480篇 |
2008年 | 552篇 |
2007年 | 567篇 |
2006年 | 564篇 |
2005年 | 489篇 |
2004年 | 375篇 |
2003年 | 309篇 |
2002年 | 350篇 |
2001年 | 390篇 |
2000年 | 329篇 |
1999年 | 287篇 |
1998年 | 213篇 |
1997年 | 180篇 |
1996年 | 175篇 |
1995年 | 181篇 |
1994年 | 167篇 |
1993年 | 164篇 |
1992年 | 192篇 |
1991年 | 188篇 |
1990年 | 181篇 |
1989年 | 158篇 |
1988年 | 169篇 |
1987年 | 190篇 |
1986年 | 154篇 |
1985年 | 164篇 |
1984年 | 177篇 |
1983年 | 149篇 |
1982年 | 146篇 |
1981年 | 121篇 |
1980年 | 114篇 |
1979年 | 123篇 |
1978年 | 93篇 |
1977年 | 77篇 |
1976年 | 90篇 |
1975年 | 100篇 |
1974年 | 82篇 |
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
21.
Tessa M. L. Kaufman Hae Yeon Lee Aprile D. Benner David S. Yeager 《Journal of research on adolescence》2020,30(3):769-786
The present research examined how school contexts shape the extent to which beliefs about the potential for change (implicit theories) interact with social adversity to predict depressive symptoms. A preregistered multilevel regression analysis using data from 6,237 ninth‐grade adolescents in 25 U.S. high schools showed a three‐way interaction: Implicit theories moderated the associations between victimization and depressive symptoms only in schools with high levels of school‐level victimization, but not in schools with low victimization levels. In high‐victimization schools, adolescents who believed that people cannot change (an entity theory of personality) were more depressed when they were victimized more frequently. Thus, the mental health correlates of adolescents’ implicit theories depend on both personal experiences and the norms in the context. 相似文献
22.
Zhengyu Zhang Kristen L. Farris Mao‐Chia Sun Ren M. Dailey Erin E. Donovan 《Journal of research on adolescence》2020,30(3):800-816
Guided by self‐determination theory, the aim of this study was to examine whether adolescents’ autonomous motivation for making healthy diet choices mediates the association between parenting practices regarding diet and adolescent food choices. We analyzed data from the NCI FLASHE study, a survey of demographically diverse parents and their adolescent children (N = 1,646 dyads). Path models supported self‐determination theory’s assertion that indirect, encouraging parenting practices fostered internal motivation; in contrast, regulation was both positively and negatively linked to motivation depending on the model. Models also yielded direct paths between parenting practices and healthy and unhealthy diet choices. Overall, regardless of what predicted motivation, adolescents’ autonomous motivation was linked with their consumption of healthier foods and drinks. As such, cultivating a sense of internal motivation during these formative years may put young people on a path toward healthy patterns of self‐regulation later in life. 相似文献
23.
Ego‐resiliency is an enduring psychological construct reflecting how individuals‐adapt to environmental stressors, conflict, and change which is linked to positive adjustment. Ego‐resiliency has not been examined in Latino youth, despite their high risk for mental health problems; nor have cultural precursors to ego‐resiliency been examined. Given these gaps, we examined whether familism values (supportive, obligation, and referent) were associated with ego‐resiliency and, in turn, depressive problems in Latino adolescents across two time points (N = 123, mean age = 11.53). Results indicated that supportive familism was associated positively with ego‐resiliency and negatively with depressive problems. Ego‐resiliency negatively predicted depressive problems across time, controlling for prior levels, suggesting that ego‐resiliency may have long‐term effects on depressive problems in Latino youth. 相似文献
24.
Heidi M. Levitt Sophie W. Schuyler Rachel Chickerella Allison Elber Lindsey White Rebecca L. Troeger 《Journal of gay & lesbian social services》2020,32(3):261-282
AbstractLGBTQ+?people face multiple challenges to parenthood because of barriers such as discriminatory legislation and policies influencing foster parenting, adoption, and reproductive health services. This study documents these obstacles and examines their impact through a grounded theory analysis of interviews of LGBTQ+?prospective parents. Stressors included social isolation, unnecessary medicalization, prohibitive financial costs related to accessing social and medical services (sometimes across state lines), and being denied services, parental leave, and insurance coverage. Findings indicate that heteronormative attitudes and discrimination can lead to debilitating and enduring harm upon the economic, emotional, and relational well-being of growing LGBTQ+?families. 相似文献
25.
Katelyn K. Fletcher Carolyn Brockmeyer Cates Alan L. Mendelsohn Catherine S. Tamis‐LeMonda 《Infancy》2020,25(5):535-551
Play offers rich opportunities for toddlers to develop motor, social, cognitive, and language skills, particularly during interactions with adult caregivers who may scaffold toddlers to higher levels of play than toddlers achieve on their own. However, research on play has narrowly focused on children from White, middle‐income backgrounds, leaving a dearth of knowledge about dyadic play in diverse cultural communities. We videorecorded 222 Mexican‐American mothers playing with their 2‐year‐old toddlers with a standard set of toys. Play behaviors were coded as nonsymbolic or symbolic (play type) and as expressed through manual, verbal, or multiple channels (play modality). Play between toddlers and mothers was frequent, high in symbolic content, and toddler play closely corresponded with mother play in type and modality: Toddlers’ nonsymbolic play related to mothers’ nonsymbolic play; toddlers’ symbolic play related to mothers’ symbolic play; toddlers’ manual play related to mothers’ manual play; and toddlers’ multimodal play related to mothers’ multimodal play. Play in Mexican‐American mothers and toddlers is frequent, multimodal, and symbolically rich, offering new directions for future research and practice. 相似文献
26.
David L. Albright Lauren Holmes Michael Lawson Justin McDaniel Kirsten Laha-Walsh Shanna McIntosh 《Journal of social work practice in the addictions》2020,20(1):46-58
ABSTRACTAlcohol and substance use can challenge military veterans who live in rural communities. In 2016, the screening, brief intervention, and referral to treatment in Alabama (AL-SBIRT) program was implemented in west Alabama. The primary aim of this study was to determine whether current tobacco use modified the relationship between veteran status and substance misuse. Self-reported wellness data was collected regarding substance, alcohol, or tobacco consumption. Risk levels for alcohol and drug use were measured using the United States Alcohol Use Disorders Identification Test (US-AUDIT) and the Drug Abuse Screening Test (DAST)-10. Substance and tobacco use were significantly and positively correlated. Veterans had a higher US-AUDIT and DAST score than nonveterans, and tobacco appeared to be an exacerbating factor. Effective evidence-based interventions are needed in rural settings. Technology based programs and motivational interviewing with trained clinicians may serve as beneficial and cost-effective interventions for tobacco use prevention and cessation efforts. 相似文献
27.
ABSTRACTThis study extends generational research by delineating actual versus perceived cohort differences through a theoretically grounded model using the Social Identity Approach (SIA). Subjects rated how much they valued 15 workplace characteristics and then provided value ratings for generational cohorts based on their perceptions of said cohorts. This allowed for the determination of actual and perceived cohort differences by characteristics. Results revealed actual cohort value differences across seven characteristics; however, perceived differences exceeded actual ones. Post-hoc, an examination of cohort values by characteristics revealed generational identities and the presence of prototypical distancing between cohort in groups and out groups. 相似文献
28.
Arzu Güler 《International migration (Geneva, Switzerland)》2020,58(5):3-17
Being a Contracting Party to the 1951 Convention Relating to the Status of Refugees and its Protocol with geographical limitation, Turkey provides conditional refugee status, not refugee status, to persons feeling persecution as a result of events occurring outside Europe. This study focuses on the rights of conditional refugees under Turkish laws and questions whether these rights comply with or diverge from the rights of refugee under the Convention. It draws conclusions on the significance and challenging character of the identified divergences and on the changes that Turkey needs to make in its laws in case of an eventual lifting. 相似文献
29.
30.
Though the concept of blight clarifies housing and neighborhood changes in rural and small towns experiencing disinvestment and decline, the term is rarely examined outside of urban discourse. This study explores the extent of rural blight and its relationship to community characteristics using survey results from elected officials and staff members of small towns in one southeastern state. We examine the historical background of blight, including its connections to urban renewal, racial bias and stereotyping, and the broken windows theory. Among the small towns in the study, economic blight, particularly dilapidated housing, was prevalent. Social blight, which includes behaviors that are thought to be threatening or criminal in nature, was less common but correlated moderately with economic forms of blight. While social disorganization and collective efficacy theories link a range of demographic characteristics to physical and social disorder, our findings pointed only to a significant relationship between communities with a higher portion of the population who are black and multiple forms of extensive blight. More research is needed to understand the relationship, both observed and perceived, between economic and social blight in rural small towns and how these issues may be remediated through local collective action. 相似文献