全文获取类型
收费全文 | 27851篇 |
免费 | 736篇 |
专业分类
管理学 | 3366篇 |
民族学 | 145篇 |
人才学 | 6篇 |
人口学 | 2500篇 |
丛书文集 | 163篇 |
教育普及 | 5篇 |
理论方法论 | 2546篇 |
现状及发展 | 1篇 |
综合类 | 336篇 |
社会学 | 14294篇 |
统计学 | 5225篇 |
出版年
2023年 | 142篇 |
2021年 | 147篇 |
2020年 | 403篇 |
2019年 | 622篇 |
2018年 | 651篇 |
2017年 | 920篇 |
2016年 | 651篇 |
2015年 | 503篇 |
2014年 | 633篇 |
2013年 | 5095篇 |
2012年 | 885篇 |
2011年 | 833篇 |
2010年 | 646篇 |
2009年 | 599篇 |
2008年 | 687篇 |
2007年 | 691篇 |
2006年 | 664篇 |
2005年 | 602篇 |
2004年 | 575篇 |
2003年 | 523篇 |
2002年 | 548篇 |
2001年 | 684篇 |
2000年 | 597篇 |
1999年 | 601篇 |
1998年 | 446篇 |
1997年 | 395篇 |
1996年 | 456篇 |
1995年 | 451篇 |
1994年 | 443篇 |
1993年 | 422篇 |
1992年 | 472篇 |
1991年 | 468篇 |
1990年 | 455篇 |
1989年 | 427篇 |
1988年 | 406篇 |
1987年 | 366篇 |
1986年 | 359篇 |
1985年 | 387篇 |
1984年 | 383篇 |
1983年 | 332篇 |
1982年 | 285篇 |
1981年 | 244篇 |
1980年 | 264篇 |
1979年 | 266篇 |
1978年 | 224篇 |
1977年 | 216篇 |
1976年 | 192篇 |
1975年 | 192篇 |
1974年 | 146篇 |
1973年 | 122篇 |
排序方式: 共有10000条查询结果,搜索用时 515 毫秒
541.
Despite rapid expansion in the maternal and child health and family planning services, there have been few attempts made to study the extent of utilisation of these services and their impact. The present study reports a simple method evolved in the quantification of utilisation of maternal care services (called maternal care receptivity - MCR), the relationship of factors such as age, parity, caste of the women and the distance of the health centre on the MCR and the impact of MCR on perinatal and neonatal mortalities. An inverse relationship was observed between MCR and perinatal and neonatal mortality rates and the two rates were three times less among babies born to mothers with high MCR scores compared to those with poor MCR scores. 相似文献
542.
The purpose of this study was to evaluate one phase of a statewide program of deinstitutionalizing developmentally disabled individuals. Forty adults who had spent a minimum of six months in community placements were evaluated with respect to changes in behavior associated with movement out of state institutions and into community settings such as group homes and day activity centers. Pre- and post-deinstitutionalization measures were taken with the Behavior Development Survey. Post-deinstitutionalization measures on Cataldo and Risley's Resident Activity Manifest were compared to the same measures obtained on 159 developmentally disabled individuals scheduled for deinstitutionalization. A consistent pattern of positive changes on both instruments favored deinstitutionalization, but changes could not be unequivocally attributed to movement out of the institutions per se. 相似文献
543.
Wright DK 《The Public relations journal》1982,38(12):12, 14, 15-12, 14, 16
544.
Cornelius WA 《The International migration review》1982,16(2):378-411
"This article discusses data collection methods and basic issues of research strategy in field studies of unapprehended illegal immigrants living in the United States. It suggests ways to increase the reliability and validity of interview responses. Necessary modifications in format and style of interviews are described. An annotated bibliography of recent field studies of undocumented immigrants is provided." 相似文献
545.
546.
Kopec D 《Wiadomo?ci statystyczne (Warsaw, Poland : 1956)》1982,27(10):1-5
The author describes two surveys carried out in 1978 and 1980 in Poland that were concerned with temporary residence, defined as residence for more than two months. The results of the surveys are presented, including data on age, sex, and urban or rural residence. 相似文献
547.
This article examines in depth the strategic implications for those States who have recently declared 200 mile off-shore resource management zones. The authors, in a comprehensive and stimulating paper, examine the implications of so-calling a nation's offshore limit. It is an appropriate name for a nation's offshore limit since the primary reason for many nations declaring a 200 mile limit has been the abundance of resources which have often been found within those limits either in the sea or the sea bed itself. This paper reviews the current background of off-shore resource management and outlines suitable roles for adoption by the coastal States in the management of their off-shore renewable and non-renewable resources. Furthermore, it examines the contentious but nonetheless central issue of the benefits and costs which accrue through coastal state jurisdiction. The authors also examine an appropriate resource management process and the implications of resource use conflicts within the off shore limit as well as defining these conflicts on the basis of ‘stakeholder’ interests and introduces a new concept of the maximization of economic equity amongst competing stakeholders. The problem remains that the measurement of economic equity perhaps leaves the States concerned within a situation of only having defined the problem; the political process has then to deal with any reallocation measures that may be deemed appropriate. 相似文献
548.
As a guide for how to select a new executive director, a family agency adopted the search committee process from higher education. The approach included clarifying agency goals and the director's qualifications, a board-staff screening, and interviews held jointly with public representatives before final board selection. 相似文献
549.
550.