全文获取类型
收费全文 | 7377篇 |
免费 | 176篇 |
国内免费 | 1篇 |
专业分类
管理学 | 990篇 |
民族学 | 33篇 |
人口学 | 762篇 |
丛书文集 | 32篇 |
理论方法论 | 661篇 |
综合类 | 90篇 |
社会学 | 3574篇 |
统计学 | 1412篇 |
出版年
2023年 | 40篇 |
2020年 | 97篇 |
2019年 | 141篇 |
2018年 | 169篇 |
2017年 | 252篇 |
2016年 | 178篇 |
2015年 | 124篇 |
2014年 | 160篇 |
2013年 | 1301篇 |
2012年 | 228篇 |
2011年 | 206篇 |
2010年 | 146篇 |
2009年 | 134篇 |
2008年 | 147篇 |
2007年 | 141篇 |
2006年 | 171篇 |
2005年 | 152篇 |
2004年 | 148篇 |
2003年 | 136篇 |
2002年 | 153篇 |
2001年 | 164篇 |
2000年 | 168篇 |
1999年 | 173篇 |
1998年 | 137篇 |
1997年 | 133篇 |
1996年 | 126篇 |
1995年 | 110篇 |
1994年 | 107篇 |
1993年 | 110篇 |
1992年 | 116篇 |
1991年 | 128篇 |
1990年 | 125篇 |
1989年 | 144篇 |
1988年 | 85篇 |
1987年 | 109篇 |
1986年 | 93篇 |
1985年 | 114篇 |
1984年 | 96篇 |
1983年 | 103篇 |
1982年 | 80篇 |
1981年 | 81篇 |
1980年 | 76篇 |
1979年 | 81篇 |
1978年 | 83篇 |
1977年 | 60篇 |
1976年 | 66篇 |
1975年 | 61篇 |
1974年 | 59篇 |
1973年 | 48篇 |
1971年 | 41篇 |
排序方式: 共有7554条查询结果,搜索用时 15 毫秒
291.
We consider a two-echelon inventory system with one warehouse and several stores. The warehouse as well as the stores are controlled by periodic review (s, S) inventory policies. We study the interrelationship between the safety stocks at the warehouse and the stores. Stockouts at the warehouse will result in supply delays to the stores and cause the lead time to be stochastic. The stores may react by increasing their safety stock. However, there is a trade-off between the safety stock at the warehouse and the safety stock at the stores. We use a service level at the warehouse to quantify the effect of warehouse stockouts on the lead time to the stores. The service level at the warehouse is considered a decision variable to find the best compromise between the various safety stocks by minimizing the overall costs. Using power approximations for the (s, S) policies, we provide an iterative procedure for adjusting the lead time distribution to the stores; this can result in substantial savings, but it doesn't guarantee the overall optimality. Numerical studies are provided to test the accuracy of approximations. The effects of the different system parameters on the inventory policy give general guidelines for use of the policies. 相似文献
292.
Psychosocial benefits of activism include increased empowerment, social connectedness, and resilience. Yet sexual minority women (SMW) and transgender individuals with multiple oppressed statuses and identities are especially prone to oppression-based experiences, even within minority activist communities. This study sought to develop an empirical model to explain the diverse meanings of social justice activism situated in SMW and transgender individuals’ social identities, values, and experiences of oppression and privilege. Using a grounded theory design, 20 SMW and transgender individuals participated in initial, follow-up, and feedback interviews. The most frequent demographic identities were queer or bisexual, White, middle-class women with advanced degrees. The results indicated that social justice activism was intensely relational, replete with multiple benefits, yet rife with experiences of oppression from within and outside of activist communities. The empirically derived model shows the complexity of SMW and transgender individuals’ experiences, meanings, and benefits of social justice activism. 相似文献
293.
“He invited me and didn't ask anything in return” Migration and Mobility as Vulnerabilities for Sexual Exploitation among Female Adolescents in Mexico 下载免费PDF全文
Teresita Rocha‐Jimenez Kimberly C. Brouwer Marissa Salazar Sabrina C. Boyce Argentina E. Servin Shira M. Goldenberg Hugo Staines‐Orozco Ricardo B. Vera‐Monroy Jay G. Silverman 《International migration (Geneva, Switzerland)》2018,56(2):5-17
Although human trafficking is recognized as a major human rights violation, there is limited evidence regarding the vulnerabilities that contribute to female adolescents’ risk of being forced or coerced into the sex trade. Vulnerabilities such as gender‐based violence, economic and social inequalities have been shown to shape the risk of sexual exploitation among adolescents. In‐depth interviews (n=18) with current sex workers who reported being deceived or forced into the sex trade as adolescents (<17 years old) were analysed to explore their experiences of migration and mobility in Mexico. Driven by socio‐economic and vulnerabilities in home communities, adolescents often engaged in internal migration and mobility to other Mexican communities and states. Migration and mobility further predisposed them to social isolation, economic hardship and abuse, which were used as tools to trick them into the sex trade. Policies that support safer migration for adolescents in origin, transit, and destination communities are needed. 相似文献
294.
Do the Constructs of the FACES IV Change Based on Definitions of “Family?” A Measurement Invariance Test 下载免费PDF全文
Jacob B. Priest Elizabeth O. Parker Sarah B. Woods 《Journal of marital and family therapy》2018,44(2):336-352
The Family Adaptability and Cohesion Scale (FACES) IV does not provide instructions about which family members respondents should think about while answering questions. This study examined which family members respondents thought about while completing the FACES IV, and if this changed measurement invariance and population heterogeneity of the measure. Using a sample of n = 511 individuals, a latent class analysis showed three distinct classes: Nuclear Family, Family of Origin, and All of the Above. The FACES IV demonstrated measurement invariance across classes on the majority of subscales; however, population heterogeneity tests suggested that the means and variances of the subscales varied across classes. The findings suggest further examination of how the measure functions with unique family constellations is warranted. 相似文献
295.
In this study, we provide evidence of the theorized connection between community engagement and the development of social capital, and the perceived value or worth of relationships among organizations and stakeholders. Using thematic analysis to understand the policy and practice frameworks of community engagement in Australian local government organizations, our analyses reveal two different types of community engagement—relational and episodic—each of which has the potential to contribute to relational dimension of social capital. The study introduces and develops new thinking around the ideas of episodic and relational engagement within the context of community engagement, and their respective contributions to the development of relational capital. Recognizing and identifying episodic and relational community engagement as separate phenomena allows researchers and practitioners to understand the theoretical dimensions of community engagement as a framework for practice. 相似文献
296.
297.
Paul R. Smokowski Caroline B. R. Evans Heather Wing Meredith Bower Martica Bacallao James Barbee 《Child and Adolescent Social Work Journal》2018,35(2):127-138
The Youth Court in Schools Project was implemented in two low-income, violent, racially/ethnically diverse rural counties. This study examined if the presence of Youth Court impacted students’ perceptions of school danger, individual functioning, and interpersonal relationships. Data were gathered from 3454 youth; following multiple imputation, data were analyzed using paired samples t tests. Results indicated that perceptions of school danger increased significantly and self-esteem decreased significantly in the control schools pretest to posttest. Violent behavior, anxiety, friend rejection, and bullying victimization decreased significantly in the Youth Court intervention schools pretest to posttest, but did not change significantly in the control schools. Findings provide preliminary evidence that Youth Court is an effective way of improving school climate, individual functioning, and interpersonal relationships. 相似文献
298.
Angela Ghesquiere Stacey B. Plichta Caitlin McAfee Geoff Rogers 《Journal of elder abuse & neglect》2018,30(1):1-19
Adult Protective Services (APS) workers are exposed to substantial occupational hazards and job stress, but these stressors are underdocumented. Therefore, we sought to describe APS workers’ work environments and responses to occupational hazards and stressors, including compassion fatigue, burnout, and secondary traumatic stress. Survey data were gathered with closed-ended questionnaires administered to APS workers in an urban setting. Virtually all workers (97%) reported exposure to one or more environmental hazards in their work, and 80% reported hazard exposure in the past month. Workers also reported mixed responses to their work environment and to experiences with supervision. A sizable minority (22.7%) was at high risk for burnout, 24.6% were at risk for secondary traumatic stress, and 19.9% reported low compassion satisfaction. The results document multiple stressors in APS work. The APS partner is committed to ongoing efforts to better support its staff, and these findings can inform future efforts to enhance supervisor support and worker self-care, to minimize burnout and secondary traumatic stress. 相似文献
299.
Timothy F. Platts-Mills Joseph A. Dayaa Bryce B. Reeve Kayla Krajick Laura Mosqueda Jason S. Haukoos 《Journal of elder abuse & neglect》2018,30(4):247-270
Emergency departments (EDs) are an important health care setting for the identification of elder abuse (EA). Our objective was to develop an ED-based tool to identify EA. The initial tool included a brief cognitive assessment, questions to detect multiple domains of EA, and a physical examination. Refinement of the tool was based on input from clinical experts and nurse and patient feedback. The revised tool, which included 15 questions about EA, was then tested in an academic ED. We calculated the inter-rater reliability, sensitivity, and specificity of individual EA questions. Among ED patients age≥65 (N = 259), 17 (7%) screened positive for suspicion of EA. We identified a combination of six questions that cover the included domains of EA, demonstrated good or excellent inter-rater reliability, and had a sensitivity and specificity of 94% (95% confidence interval (CI) 71–100%) and 90% (95% CI 85–93%), respectively. These results inform a proposed screening tool for multisite validation testing. 相似文献
300.
Oonagh B. Breen Carolyn J. Cordery Louise Crawford Gareth G. Morgan 《Voluntas: International Journal of Voluntary and Nonprofit Organizations》2018,29(6):1330-1346
Financial reporting is an important aspect of not-for-profit organisations’ (NPOs’) accountability. Globally, numerous and varying regimes exist by which jurisdictions regulate NPO financial reporting. This article explores whether NPOs should be required or expected to follow sector-specific international financial reporting standards. We investigate stakeholder perceptions on the nature and scope of any such developed standards, interpreting our findings through the lens of moral legitimacy. Using an international online survey of stakeholders involved in NPO financial reporting, we analyse 605 responses from 179 countries. Based on our findings, we argue that diverse stakeholder groups, especially those who are involved with NPO financial reporting in developing countries, are likely to grant moral legitimacy to developed NPO international accounting standards if the consequences are to enhance NPO accounting and accountability information, subject to agreement as to whether all or only NPOs of a certain size should comply and whether any such standards should be mandatory. 相似文献