首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   14455篇
  免费   233篇
  国内免费   15篇
管理学   1664篇
民族学   81篇
人才学   1篇
人口学   1246篇
丛书文集   144篇
理论方法论   1346篇
综合类   726篇
社会学   7789篇
统计学   1706篇
  2023年   114篇
  2022年   66篇
  2021年   113篇
  2020年   234篇
  2019年   288篇
  2018年   352篇
  2017年   512篇
  2016年   340篇
  2015年   280篇
  2014年   360篇
  2013年   2744篇
  2012年   496篇
  2011年   491篇
  2010年   403篇
  2009年   330篇
  2008年   404篇
  2007年   415篇
  2006年   427篇
  2005年   367篇
  2004年   290篇
  2003年   254篇
  2002年   268篇
  2001年   343篇
  2000年   285篇
  1999年   276篇
  1998年   202篇
  1997年   172篇
  1996年   161篇
  1995年   178篇
  1994年   167篇
  1993年   167篇
  1992年   195篇
  1991年   194篇
  1990年   188篇
  1989年   165篇
  1988年   170篇
  1987年   194篇
  1986年   150篇
  1985年   162篇
  1984年   179篇
  1983年   152篇
  1982年   151篇
  1981年   127篇
  1980年   115篇
  1979年   124篇
  1978年   99篇
  1977年   81篇
  1976年   96篇
  1975年   110篇
  1974年   88篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.

Background

Meconium stained amniotic fluid commonly occurs postdates (?>40 weeks gestation) indicating fetal maturity. Previous literature indicates that different ethnicities mature at different rates.

Aim

To compare the rate of meconium stained amniotic fluid of Australian-born and non-Australian born women.

Methods

A retrospective correlation study design was implemented, using data collected in the birth outcomes system at one tertiary hospital. Data was collected from all women who gave birth to a term (>/=37 weeks gestation), singleton, liveborn baby between January 1st to December 31st, 2014. Maternal country of birth was used for comparison. Categorical data was analyzed using Chi-Square test for Independence. Continuous variables were assessed for normality, and differences were compared using an Independent t-test or a Mann–Whitney U test. All tests were two-tailed and p < 0.05 was considered statistically significant.

Results

3,041 women were included; 1131 Australian-born and 1910 non-Australian born. Meconium stained amniotic fluid occurred more frequently in non-Australian born women compared to Australian-born women (23.5% vs. 19.8 p = 0.02). Their babies were significantly smaller (Mean = 3265 g, Standard Deviation 463.8 vs Mean = 3442 g, Standard Deviation 499.2, p < 0.001), with no difference in gestational length (Mean = 39.4, Standard Deviation 1.28 vs Mean = 39.5, Standard Deviation 1.18, p = 0.06). Increasing gestational age had the strongest association with meconium stained amniotic fluid;?>/=42 weeks gestation occurring 3.52 (95% Confidence Interval: 2.00, 6.22, p = <0.001) more than <40 weeks gestation.

Conclusion

Maternity health services should record ethnicity and region of birth to provide individualised care as women born overseas often have poorer perinatal outcomes when compared to Australian-born women.  相似文献   
2.
3.
ABSTRACT

This paper addresses a key issue in the development of youth-focused social work: the role of digital skills in the relationship between young people and social workers who work with these native digital users. To this end, we analysed data from the International Digital Economy and Society Index 2019 and Eurostat. Information from the sixth European Working Conditions Survey and a survey conducted by the Social Care Institute for Excellence and the British Association of Social Workers supported the empirical analysis. The main findings reveal a gap between the level of digital skills required in the labour market and the actual level of digital skills in both young people and social workers, despite efforts by both groups to improve their skills. Initiatives to foster digital skills are therefore recommended to bridge this digital divide. Lastly, it was concluded that both groups could act as mutual drivers of digital transformation.  相似文献   
4.
族群认同的血缘性重建--以海村京族人为例   总被引:3,自引:0,他引:3  
本文对1949年以来海村京族人族群意识的变化进行了考察。认为,客观文化特征的不断消退,族际交流与族群互动的日益频繁,族群认同上功利性取向的不断增加以及“法定”的民族属性对京族认同的冲击,使海村京族人的族群认同面临表述上的危机。为了应对这种危机,海村京族人不得不重新利用血缘关系的不可替代性来重新构建其族群认同,并以此为基础复兴京族传统文化,强化族群成员的族群意识。  相似文献   
5.
L Kaplan 《Child welfare》1979,58(1):37-47
The Outward Bound Experience has a strong yet time-limited impact on delinquent youths. Social workers could help maintain the impact by establishing community-based followup programs that would reinforce and sustain the positive attitudes and behaviors developed.  相似文献   
6.
M L Jones 《Child welfare》1979,58(1):27-34
The development of an adoptive relationship for children who have been in the limbo of foster care is a continuous process. It is unrealistic to expect these families to live happily ever after. Agencies must begin developing regular services to meet the special needs of the families being created. To a large extent the issues that will have to be worked through relate to the stages of preparation outlined in this paper. Each stage in the child's growth may activate unresolved issues around the grief at the biological parents' rejection, confusion about identity or difficulty in working through problems. Future adoptive home recruitment must take this into account by providing training and other supports to families considering adopting the older child.  相似文献   
7.
A graph-theoretical approach as first outlined by Harary et al. is developed for solving the problem of aggregating a given set of individual preference orderings provided that no individual preferential judgment is inconsistent with the collective preference ordering obtained by aggregation.
  相似文献   
8.
9.
10.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号