全文获取类型
收费全文 | 2830篇 |
免费 | 45篇 |
国内免费 | 1篇 |
专业分类
管理学 | 258篇 |
民族学 | 31篇 |
人口学 | 316篇 |
丛书文集 | 21篇 |
理论方法论 | 268篇 |
综合类 | 55篇 |
社会学 | 1482篇 |
统计学 | 445篇 |
出版年
2023年 | 15篇 |
2022年 | 24篇 |
2021年 | 27篇 |
2020年 | 54篇 |
2019年 | 85篇 |
2018年 | 112篇 |
2017年 | 142篇 |
2016年 | 137篇 |
2015年 | 74篇 |
2014年 | 93篇 |
2013年 | 529篇 |
2012年 | 96篇 |
2011年 | 98篇 |
2010年 | 63篇 |
2009年 | 66篇 |
2008年 | 65篇 |
2007年 | 81篇 |
2006年 | 78篇 |
2005年 | 67篇 |
2004年 | 48篇 |
2003年 | 42篇 |
2002年 | 56篇 |
2001年 | 52篇 |
2000年 | 41篇 |
1999年 | 42篇 |
1998年 | 36篇 |
1997年 | 29篇 |
1996年 | 29篇 |
1995年 | 27篇 |
1994年 | 37篇 |
1993年 | 29篇 |
1992年 | 26篇 |
1991年 | 31篇 |
1990年 | 19篇 |
1989年 | 23篇 |
1988年 | 38篇 |
1987年 | 27篇 |
1986年 | 26篇 |
1985年 | 25篇 |
1984年 | 17篇 |
1983年 | 21篇 |
1982年 | 16篇 |
1981年 | 21篇 |
1980年 | 19篇 |
1979年 | 19篇 |
1978年 | 29篇 |
1977年 | 20篇 |
1976年 | 20篇 |
1975年 | 19篇 |
1968年 | 13篇 |
排序方式: 共有2876条查询结果,搜索用时 15 毫秒
11.
In this paper, the history of atmospheric science is traced, from the earliest discussions from meteorologists, and the first meetings to describe this new research area. The development of atmospheric science proceeded in three phases with each phase being marked by the attempt to organize resources, and bring into the atmospheric science network, scientists from other fields. I argue here that this construction of a science provides evidence of the social nature of science as well as the importance of organizations to the creation of a science. 相似文献
12.
Chappell Neena; Funk Laura; Carson Arlene; MacKenzie Patricia; Stanwick Richard 《Community Development Journal》2006,41(3):352-366
The need for multilevel, comprehensive health promotion programmeshas become widely accepted, as has the importance of communityapproaches. However, many health promotion programmes focuson change at the individual level, no doubt partly due to thedifficulty of implementing all-inclusive health promotion. Thispaper discusses two strategies for guiding multilevel projects:multiple methods for community assessment and charting projectactivities by level of change (a possibility framework). Thesestrategies help ensure a multilevel focus and provide valuableinformation that can assist with the implementation of multilevelhealth promotion research projects in specific community contexts.Our primary purpose, therefore, is not to focus on theory orresearch findings. Rather, our goal is to make visible two strategiesthat have been helpful in one health promotion research projectin Victoria, British Columbia, Canada. 相似文献
13.
14.
James S. Jackson Ivy Forsythe-Brown Ishtar O. Govia 《The Journal of social issues》2007,63(4):729-743
Immigration is contributing to the U.S. population becoming increasingly ethnically diverse. This article examines the role of family relations and well-being among different generations of Black Caribbean immigrants. Family disruptions, such as migration, can have complex effects on the support networks and emotional well-being of family members. Data from a recently completed national study of American Blacks in the United States, however, reveal significant similarities across ancestry and immigrant status in family contact, solidarity and well-being. It is concluded that intrafamilial relations may serve to overcome barriers of geographical distance in providing comparable levels of contact, solidarity, and well-being for both U.S.-born and immigrant Black Caribbean family members of different generations. Because of the increasing numbers of immigrant elders, these sources of family support will become increasingly more important in bridging the gaps between government resources and needed assistance in an aging society. 相似文献
15.
16.
Within children's services, frameworks for assessing outcomes have been developed in the absence of consultation with children with autistic spectrum disorders and their parents. The research reported here worked with parents, other key adults and children with autistic spectrum disorders to identify desired outcomes. It found similarities with non‐autistic children in terms of the broad types of outcomes desired. However, the presence of autism meant either new or different sorts of outcomes were reported. Implications in terms of the ways outcomes for autistic children are defined and measured, and the role of services in achieving outcomes is discussed. © 2006 The Author(s). 相似文献
17.
Don A. Dillman Tommy L. Brown John E. Carlson Edwin H. Carpenter Frederick O. Lorenz Robert Mason John Saltiel Roberta L. Songster 《Rural sociology》1995,60(4):674-687
Abstract Past research suggests that mail surveys encourage a primacy effect, which is a tendency to choose the first answers from a list, whereas telephone surveys encourage a recency effect, a tendency to choose the last answers from a list. This paper summarizes results from 82 new experiments conducted in 12 separate surveys in seven states. Only four of 33 mail survey comparisons exhibited significant primacy effects, while five of 26 experiments in telephone surveys exhibited recency effects. In addition, only three of 23 cross-method comparisons produced a significant primacy/recency effect in the expected manner. The conclusion is that the prevalence of primacy and recency effects has been over-estimated by past research and a new theoretical approach that takes into account multiple causation is needed for examining these effects. 相似文献
18.
Continued economic stagnation, civil unrest, rural-urban migration, and a series of natural disasters have impeded efforts in the Sudan to integrate women into the development process. Although the Four-Year (1988-1989 to 1991-92) Salvation, Recovery, and Development Programs Plan does not explicitly addresses women's issues, its emphasis on food security, appropriate technology for the agricultural sector, small-scale industries and handicrafts, balanced regional development, and the needs of the poorest 20% of the population guarantees that women will be major recipients. There remains a need, however, to increase women's participation in the development planning process and to base projects on reliable data on women's economic activities. More successful in defining women's needs have been community development projects--Western Savannah Development Corporation, Blue Nile Integrated Rural Development Project, Nuba Mountain Project, and Jebel Marra Rural Development Project--that combine income generation, social welfare, and agricultural research. It is recommended that all such large integrated rural development or agricultural projects allot funds specifically for women's activities and ensure coordination with women's organizations to avoid duplication and identify areas of greatest need. Also urged is the development of appropriate technologies that will alleviate women's double burden of poverty and household chores and address the inequitable distribution of income. Establishment of a women's bureau for women's affairs and development within the National Planning Department would facilitate project formulation and evaluation. In need of change if women in development projects in the Sudan are to be successful are laws that limit female land ownership and practices that deny women loans and credit. 相似文献
19.
"The study investigates the departure from Australia of former settlers who arrived during the 1980 calendar year. The 1980 settler arrival cohort [consists] of 75,167 visaed migrants.... The study has three main aims: (i) to analyse departures from Australia of the 1980 settler arrival cohort with a view to gauging the success of Australia's immigration program in retaining settlers; (ii) to examine the retention rates of settlers with respect to characteristics...including age, sex, marital status, country of last residence, and settler eligibility category; and (iii) to consider implications of the findings." Australia's present immigration policy is discussed, previous research on return migration from Australia is summarized, and a detailed analysis of the departure data is presented. "This study found that by August 1984, 12.4 per cent of non-refugee settlers who arrived in Australia during 1980 had departed permanently but that only 0.6 per cent of the 1980 refugee cohort had done so." These figures represent a decline in immigrant departure rates since the 1960s and early 1970s. Small differences in departure rates by place of birth, age, and marital status, which may have demographic consequences if sustained over time, are noted. (SUMMARY IN FRE AND SPA) 相似文献
20.
Vakano O 《Vestnik statistiki (Moscow, Russia : 1949)》1986,(1):70-72
Factors affecting rural-urban migration in the USSR are examined. The author suggests that a lower rate of such migration is associated with the creation of agro-industrial centers. 相似文献