全文获取类型
收费全文 | 16524篇 |
免费 | 401篇 |
国内免费 | 15篇 |
专业分类
管理学 | 1895篇 |
民族学 | 134篇 |
人才学 | 1篇 |
人口学 | 1998篇 |
丛书文集 | 143篇 |
理论方法论 | 1361篇 |
综合类 | 762篇 |
社会学 | 8568篇 |
统计学 | 2078篇 |
出版年
2023年 | 70篇 |
2021年 | 108篇 |
2020年 | 208篇 |
2019年 | 254篇 |
2018年 | 827篇 |
2017年 | 949篇 |
2016年 | 688篇 |
2015年 | 272篇 |
2014年 | 320篇 |
2013年 | 2055篇 |
2012年 | 574篇 |
2011年 | 891篇 |
2010年 | 729篇 |
2009年 | 601篇 |
2008年 | 685篇 |
2007年 | 776篇 |
2006年 | 416篇 |
2005年 | 428篇 |
2004年 | 376篇 |
2003年 | 346篇 |
2002年 | 295篇 |
2001年 | 343篇 |
2000年 | 288篇 |
1999年 | 273篇 |
1998年 | 200篇 |
1997年 | 168篇 |
1996年 | 167篇 |
1995年 | 172篇 |
1994年 | 158篇 |
1993年 | 162篇 |
1992年 | 185篇 |
1991年 | 186篇 |
1990年 | 183篇 |
1989年 | 159篇 |
1988年 | 172篇 |
1987年 | 191篇 |
1986年 | 148篇 |
1985年 | 157篇 |
1984年 | 175篇 |
1983年 | 151篇 |
1982年 | 151篇 |
1981年 | 121篇 |
1980年 | 111篇 |
1979年 | 122篇 |
1978年 | 95篇 |
1977年 | 79篇 |
1976年 | 93篇 |
1975年 | 109篇 |
1974年 | 84篇 |
1972年 | 62篇 |
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
991.
There has been a dramatic increase in the number of new HIV diagnoses among people aged 50 to 64 in the United States, and according to the Centers for Disease Control and Prevention (CDC), in just 7 years (by 2015) 50% of those living with AIDS will be aged 50 or older. To address this public health concern, viable HIV/AIDS prevention and treatment options for individuals over the age of 50 are necessary. This article discusses the No One Is Immune initiative that planned, implemented, and coordinated evidence- based HIV/AIDS prevention and education programs specifically tailored for middle-aged and older adults. Guided by the health belief model, an educational conference entitled "Sexuality, Medication, and HIV/AIDS in Middle and Later Adulthood" was conducted along with research activities that assessed HIV/AIDS knowledge gained using both qualitative and quantitative measures. This project can be replicated by other providers within the aging network. 相似文献
992.
In the last decade the Maltese population has seen an influx of overseas-born individuals. This has been largely due to Malta’s
access to the European Union and the increased intake of refugee immigrants. These immigration trends have resulted in changes
in population composition, with the overseas-born population increasing from 17,740 (4.7%) in 1995 to 24,560 (6.1%) in 2005.
There has also been an increase in the proportion of births registered in Malta to overseas citizens, including citizens of
non-EU Europe (1.1%); the African continent (1.5%); America (0.3%); and Asia (0.8%). About ten per cent of marriages in Malta
are between a Maltese spouse and a foreigner. The data suggest that the Maltese population is slowly becoming more cosmopolitan,
a trend that is gradually changing the ethnic composition of the Maltese community. 相似文献
993.
Pollen specialization by solitary bees in an urban landscape 总被引:1,自引:1,他引:0
Many polylectic bee species are known to specialize locally on one or a few pollen types to increase foraging efficiency. What is relatively unknown is how different landscapes influence foraging decisions, and whether habitat alteration, such as that resulting from urbanization, influences broad-scale foraging activities of bees. This study evaluates the type and diversity of pollen collected by two solitary bees that are common in Toronto, Ontario, Canada, the native Osmia pumila and the exotic O. caerulescens, sampled in trap nests set up in urban parks and gardens. We found that the dominant pollen in every successful brood cell was either of one widespread, cosmopolitan lawn-invasive plant species (Trifolium repens) or one of two wind-pollinated tree genera (Quercus spp. and Betula spp.). In combination, these three represented more than 90 % of all pollen collected by each bee species. Despite considerable overlap in the dominant pollen types collected by each bee species, the exotic O. caerulescens was significantly more specialized than the native O. pumila. Brood cells with Betula as the dominant pollen type were more pollen species-rich than those cells having Trifolium or Quercus as dominant, perhaps a result of the comparatively low protein content in Betula pollen. 相似文献
994.
Rural custodial grandparents have been understudied. As the grandparent caregiving population increases, more attention is needed to understand custodial grandparents in rural settings. This article explores the state of knowledge of the experiences of rural grandparents. A systematic review of the caregiving literature is conducted to understand the issues affecting this caregiving population. The results suggest that rural grandparents often are minority grandmothers with limited resources who provide care to older grandchildren in isolated environments. Attention is given to the social ecological framework as one model that can help to inform how social workers intervene with this population. Recommendations are offered for social work research, practice, and policy. 相似文献
995.
Jeri L. Damman 《European Journal of Social Work》2014,17(1):32-44
This paper undertakes an international comparison of parent engagement in the USA and England. Research from both countries is reviewed to establish the extent to which parent engagement is achieving the benefit of an improved fit between need and services and what, if any, differences exist between the experiences of parents in the USA and England. Despite some unique differences, research from both countries identifies similar experiences among parents. Those studies indicate that parent engagement is not yet contributing to the provision of services that are more timely, appropriate, or adequate in meeting parent need. The barriers to achieving a better fit between needs and services are explored and system-wide issues that limit the effectiveness of engagement with parents are discussed. The paper presents the Munro Review of Child Protection in England as a catalyst for change in improving the child welfare system's approach to parent engagement and establishing a better fit between needs and services. Consideration of the applicability of the Munro Review findings to the USA child welfare system or replication of such a review is proposed. 相似文献
996.
997.
998.
Charlene M. Kalenkoski 《Review of Economics of the Household》2014,12(3):547-563
This paper examines whether receipt of public or private assistance is associated with recipients’ own generosity in the form of formal and informal volunteering. Using matched data from the 2007–2011 American Time Use Survey and the Annual Social and Economic Supplement to the Current Population Survey, this paper finds that receipt of private assistance from friends and relatives is negatively associated with the time women spend caring for non-household adults and the time men spend caring for non-household children. Receipt of public assistance is found to be negatively associated with men’s care of non-household adults. No associations are found between either type of assistance and time spent volunteering for a formal organization. 相似文献
999.
1000.
Racialized and Classed Contexts: Shifting Audiences and Changes in Emotional Labor Among Restaurant Servers
下载免费PDF全文
![点击此处可从《Sociological inquiry》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Brianna L. Billingsley 《Sociological inquiry》2016,86(4):641-657
This ethnographic study examines the importance of context in the emotional labor of restaurant servers. While the emotional labor of workers in the service industry has been studied extensively, little attention has been paid to the differing audiences and demands of restaurant servers in the front‐ and backstages and the ways these spaces and performances are racialized and classed. Relying on organizational materials, face‐to‐face interviews, and participant observation conducted from September through December 2013, this article addresses this gap. Findings indicate that the emotional labor that servers engage in the frontstage is processed in backstage spaces where servers interact out of earshot of customers. In this space, servers mitigate the stress associated with the emotional labor demands from the frontstage by relying on racialized and classed discourse about their customers, processes that may, in turn, contribute to the reproduction of social hierarchies. 相似文献