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   139篇
  免费   4篇
管理学   36篇
人口学   19篇
理论方法论   8篇
综合类   4篇
社会学   45篇
统计学   31篇
  2023年   4篇
  2022年   3篇
  2021年   9篇
  2020年   4篇
  2019年   8篇
  2018年   5篇
  2017年   8篇
  2016年   7篇
  2015年   5篇
  2014年   9篇
  2013年   10篇
  2012年   11篇
  2011年   5篇
  2010年   7篇
  2009年   7篇
  2008年   5篇
  2007年   7篇
  2006年   2篇
  2004年   2篇
  2003年   4篇
  2002年   1篇
  2001年   3篇
  2000年   2篇
  1999年   1篇
  1998年   3篇
  1996年   2篇
  1995年   1篇
  1994年   1篇
  1993年   2篇
  1992年   1篇
  1991年   1篇
  1990年   1篇
  1987年   1篇
  1982年   1篇
排序方式: 共有143条查询结果,搜索用时 484 毫秒
91.

Background

Among European Countries, Italy has the highest rate of cesarean section (36.8%), and in the Campania region this rate reaches 60.0%.

Question

We conducted a retrospective cohort study to evaluate whether participation in antenatal classes during pregnancy reduces the rate of cesarean delivery in southern Italy.

Methods

We selected three local health authorities, with the lowest, the highest, and an intermediate rate of cesarean delivery. The study included 1893 mothers who brought their children for vaccination and were interviewed about their participation in antenatal classes and their obstetric history.

Findings

The main causes of cesarean section given in the interview were clinical indications (61.0%), previous cesarean section (31.0%) and woman's request (8.0%). When we excluded emergency cesarean delivery, we found a moderate association between participation in antenatal classes and cesarean section reduction (relative risk = 1.27; 95% CI = 1.08–1.49; in percentage values from 49.3% to 38.8%). Private hospitals and the two local health authorities with higher baseline rates of cesarean section showed an enhanced reduction of these rates.

Conclusion

Our paper shows moderate efficacy of antenatal classes, which reduced the occurrence of cesarean section by about 10%. However, the cesarean section rate remained high. As it is possible that different classes have a different level of efficacy, a further study on a standardized model of an antenatal classes is in progress, to assess its efficacy in term of cesarean section reduction, with the purpose of its widespread implementation to the whole region.  相似文献   
92.
African countries have a tiny share in the international economy and are not able to play more than a small role in the International Relations arena. Nevertheless, major players are looking at Africa with a renewed interest and, among them, China seems to have the most dynamic approach in order to catch-up with other nations and upgrade relations with African countries. However, the EU is also carrying on its new strategy toward parts of Africa. In these world powers strategies, multiple approaches related to subregions exist, instead of a single regional approach. The objective of this paper is to have a closer look and to analyze how the different regions and major nations of Africa Western Africa, Egypt, Eastern Africa and South Africa) are dealing with their economic and political development path and their interconnection with other areas of the World, with an important focus on China-Africa relations.
Slavko VesenjakEmail:
  相似文献   
93.
In the expert use problem, hierarchical models provide an ideal perspective for classifying understanding and generalising the aggregative algoithms suitable to compose experts' opinions in a single synthesis distribution. After suggesting to look at Peter A. Morris' (1971, 1974, 1977) Bayesian model in such a light, this paper addresses the problem of modelling the multidimensional ‘performance function’, which encodes aggregator's beliefs about each expert's assessment ability and the degree of dependence among the experts. Whenever the aggregator has not an empirically founded probability distribution for the experts' performances, the proposed fiducial procedure provides a rational and very flexible tool for enabling the performance function to be specified with a relatively small number of assessments: moreover, it warrants aggregator's beliefs about the experts in terms of personal long run frequencies.  相似文献   
94.
The author's objective is to establish a relationship between the theoretical structure at the basis of a qualitative sociological analysis and the forms of visual representation of social reality, such as photography and social documentaries. Visual material becomes an object of analysis when it refers to a society that talks about itself and when it reproduces a reality which it records and makes nameable. The theme of observation is characterized by a complex activity in which perception, imagination, and representation are different functions from the sociological point of view, yet strongly connected because they make it possible for the researcher to interact visually with social reality. Observation procedures ask sociologists to have an eye capable of recognizing and perceiving in a representative way the experiences they have lived and the social facts they have observed and described. These must be portrayed not only as suggestive visual metaphors, but also as a consequence of ‘sensitive hearing’ which is essential in all research phases, from anthropology to ethnography and sociology.  相似文献   
95.
This paper explores the daily (micro)mobilities that youth with a visual or auditory impairment use to sustain well-being. Geographical research suggests that mobility is a universal phenomenon referred to the capacity to navigate one’s way through different spaces and places. Using a qualitative cross-cultural, visual methods approach to research with vulnerable youth, including four participants with visual or auditory impairments, we demonstrate that everyday patterns of (micro)mobilities through the youth’s home, school and community help disabled youth create pathways to resilience. The implications of these findings are discussed in relation to services that promote resilience against ableist beliefs.  相似文献   
96.
ABSTRACT

Under half of international migrants throughout the world are women. While large movements of people, human rights and humanitarian crises, and migrant deaths are not new, the public attention given to the arrivals of refugees and migrants to the shores of Europe has compelled governments to engage in a multilateral manner. In September 2016, the United Nations General Assembly held its first-ever summit dedicated to large movements of refugees and migrants, reaffirming the importance of existing legal instruments to protect refugees and migrants, and also foreseeing the development of two new Global Compacts: one on refugees, and the other for safe, orderly and regular migration. This article examines the process to elaborate the Global Compact for Safe, Orderly and Regular Migration from a gender-responsive perspective. It takes into consideration the advocacy role that the Women in Migration Network and other civil society stakeholders have played in its development, identifies the various opportunities and gaps within the Global Compact, and explores how women’s organisations and development organisations can promote change for women in migration under the new Global Compact.  相似文献   
97.
98.
To be efficient, flexible labor markets require geographically mobile workers. Otherwise firms can take advantage of workers' immobility and extract rents at their expense. In cultures with strong family ties, moving away from home is costly. Thus, to limit the rents of firms and to avoid moving, individuals with strong family ties rationally choose regulated labor markets, even though regulation generates higher unemployment and lower incomes. Empirically, we find that individuals who inherit stronger family ties are less mobile, have lower wages and higher unemployment, and support more stringent labor market regulations. We find a positive association between labor market rigidities at the beginning of the 21st century and family values prevailing before World War II, and between family structures in the Middle Ages and current desire for labor market regulation. Both results suggest that labor market regulations have deep cultural roots.  相似文献   
99.
La migration illégale à destination de l'Italie ou passant par ce pays est généralement associée dans l'esprit des gens à l'image de centaines, voire de milliers de migrants traversant la Méditerranée entassés dans de vieux rafiots se maintenant tout juste à flot. On considère souvent que les traversées de ce type sont la preuve de l'existence de cartels criminels qui seraient structurés hiérarchiquement, centralisés, extrêmement bien organisés et actifs au niveau mondial. Le seul problème avec de telles idées reçues est qu'elles ne concordent absolument pas avec les faits dont on dispose et n'ont pas grand chose à voir avec la réalité concrète des systèmes de migration illégale. Cette étude passe en revue un certain nombre de dossiers de tribunaux italiens concernant diverses organisations qui opèrent aussi bien au travers des frontières terrestres que maritimes. Elle montre comment de telles organisations opèrent en tenant compte de diverses spécificités locales et contraintes structurelles.  相似文献   
100.
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