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   641篇
  免费   16篇
管理学   109篇
民族学   11篇
人口学   60篇
理论方法论   72篇
综合类   2篇
社会学   255篇
统计学   148篇
  2023年   8篇
  2022年   6篇
  2021年   16篇
  2020年   19篇
  2019年   31篇
  2018年   37篇
  2017年   49篇
  2016年   34篇
  2015年   18篇
  2014年   38篇
  2013年   79篇
  2012年   78篇
  2011年   24篇
  2010年   23篇
  2009年   16篇
  2008年   17篇
  2007年   27篇
  2006年   12篇
  2005年   12篇
  2004年   18篇
  2003年   9篇
  2002年   11篇
  2001年   9篇
  2000年   7篇
  1999年   4篇
  1998年   3篇
  1996年   5篇
  1995年   2篇
  1994年   2篇
  1993年   4篇
  1992年   3篇
  1991年   2篇
  1988年   2篇
  1987年   1篇
  1986年   1篇
  1985年   1篇
  1984年   4篇
  1983年   1篇
  1982年   2篇
  1981年   3篇
  1980年   1篇
  1979年   2篇
  1975年   2篇
  1973年   1篇
  1972年   2篇
  1971年   1篇
  1970年   1篇
  1969年   2篇
  1967年   2篇
  1966年   1篇
排序方式: 共有657条查询结果,搜索用时 15 毫秒
501.
Foreign market re-entry has increasingly attracted academic interest. However, different streams of research have developed largely independently of each other, which has hindered theory development and practical advancement in the field. By reviewing 45 relevant articles in international business and related disciplines between 1996 and 2020, this study provides a systematic review and analysis of the literature on re-entry. In addition, a framework is developed to direct future research efforts. Following the logic of ‘Antecedents-Phenomenon-Consequences’ and focusing on the time dimension, this study enables better understanding of the re-entry phenomenon and provides recommendations for future research in this area.  相似文献   
502.
Journal of Management and Governance - Corporate cases and scandals of corruption have emerged in the hospitality industry. In Spain, the recent Criminal Code (1/2015) proposed an organisational...  相似文献   
503.
Studies on risks and vulnerabilities have become one of the principal interdisciplinary themes of population and environment studies, especially in dense metropolitan spaces. Current debates on global environmental change have reinforced this tendency, since the consideration of specific vulnerabilities of urban populations is one of the most urgent issues of the contemporary environmental discussion. This discussion, however, has notably under-emphasized social and spatial concerns, highlighting the need to search for bases that support a more conjunctive and wide-ranging perspective of vulnerability. This article seeks to develop a social and spatial perspective on vulnerability, incorporating social assets theory to population-environment studies.  相似文献   
504.
The Legal Brazilian Amazon, while the largest rainforest in the world, is also a region where most residents are urban. Despite close linkages between rural and urban processes in the region, rural areas have been the predominant focus of Amazon-based population-environment scholarship. Offering a focus on urban areas within the Brazilian Amazon, this paper examines the emergence of urban hierarchies within the region. Using a combination of nationally representative data and community based surveys, applied to a multivariate cluster methodology (Grade of Membership), we observe the emergence of sub-regional urban networks characterized by economic and political inter-dependency, population movement, and provision of services. These networks link rural areas, small towns, and medium and large cities. We also identify the emergence of medium-size cities as important nodes at a sub-regional level. In all, the work provides insight on the proposed model of ‘disarticulated urbanization’ within the Amazon by calling attention to the increasing role of regional and sub-regional urban networks in shaping the future expansion of land use and population distribution in the Amazon. We conclude with a discussion of implications for increasing intra-regional connectivity and fragmentation of conservation areas and ecosystems in the region.  相似文献   
505.
The present study examined the relationship between parents’ mental‐state talk and preschoolers’ executive function. Seventy‐two children participated in the present study, as well as their mothers and fathers. When children were enrolled in the second preschool year, mothers’ and fathers’ use of mental‐state references were assessed during a shared picture‐book reading task with the child. Later, four months before admission to the first grade, preschoolers’ executive function was measured. Hierarchical regression analysis revealed that maternal, but not paternal, mental‐state talk was a significant predictor of children's executive function composite, even after accounting for child gender, age, verbal ability, and parental education. When looking at each of the EF components, maternal mental‐state talk proved to be a predictor of set‐shifting whereas no significant relations emerged with inhibitory control or working memory. These findings add to prior research on parenting quality and executive function in preschoolers.  相似文献   
506.
The synanthropic flora in the Mendoza urban area was studied in terms of its three most relevant sub-environments: house and school gardens, parks and borders of narrow ditches used to irrigate the whole city. The current synanthropic flora comprises 487 species, 8 native and 479 alien species. Neophytes include 282 genera and 104 families, with the dominant families being Fabaceae, comprising 41 species, Myrthaceae (38 spp), Rosaceae and Oleaceae (24 spp), all of which together represent 26% of the total richness recorded. Ephemerophytes, non-naturalized plants, represent 25.4% of the urban flora. Xenoergasiophytes and ergasiophytes are dominant in gardens and parks, whereas xenophytes grow in irrigation ditches across the city. Considering life forms, nanophaerophytes are prevalent in all three sub-environments, but succulents and therophytes are absent from ditches. The number of non-native plant species is increasing in the urban area of Mendoza, especially in the suburbs, and many of them at times become invasive.  相似文献   
507.
Partant des données collectées dans six pays de l'Union européenne (Autriche, Espagne, Grèce, Irlande, Italie et Portugal) entre 1995 et 2001, les auteurs étudient l'infuence du handicap sur l'absentéisme des travailleurs. Ils observent que les travailleurs handicapés sont plus souvent absents que les travailleurs valides, constat établi après contrôle des effets de l'état de santé des personnes interrogées, de la fréquence de leurs visites chez le médecin et du nombre de nuits d'hospitalisation. L'absentéisme s'accroît aussi avec la gravité du handicap. L'effet total du handicap représente une augmentation marginale de 6 à 26 jours d'absence par an, selon le pays.  相似文献   
508.
Estimating the characteristics of the “disabled” population is necessary for some governments and of interest to health researchers concerned with producing disability prevalence rates. Because generating easy-to-understand estimates of disability in the population is important, this article provides U.S. population estimates for two disability-related measures by using the 2009 to 2011 American Community Survey Public Use Microdata Sample file. The number of people who have “independent living” and “ambulatory” difficulties is calculated from a sample of 9,204,437 (representing >309 million people). The percentage for “disabled” is found to vary by racial and ethnic category, sex, age, citizenship status, educational attainment, and state-level regions divided by weather.  相似文献   
509.
I address the link between democracy and inequality in Latin America, analyzing whether the degree of democracy that birth cohorts experience during the course of their formative years is related to labor income dispersion later, in adulthood. For this, I measure inequality at the cohort level by using pseudo-panel data built from household surveys for fifteen Latin American countries (from circa 1995 to circa 2011) and measure democracy as the discounted cumulative value of the degree of democracy during the cohort’s formative years. I find that cohorts that have higher discounted cumulative values of the degree of democracy show lower income inequality. However, the effect of democracy on income dispersion is driven by those cohorts that benefited from the surge of democracies that came to exist during the second half of the twentieth century. I also present suggestive evidence that education is one mechanism explaining these results.  相似文献   
510.
This study aimed to quantify training parameters and analyze the morphological response of aged muscles submitted to resistance training and anabolic steroids. Aged Wistar rats were divided into groups: C – initial control; CF – final control; CAS – control with anabolic steroid, RT – resistance training, and RTA – resistance training with anabolic steroid. Maximum carried load, absolute and relative loads increased significantly in RT and RTA. RTA demonstrated greater relative load than RT. Average total volume, total climbing volume, relative total volume, relative total climbing volume, and mean climbing volume were similar between groups RT and RTA. For soleus, CAS, RT, and RTA enlarged cross-sectional area of type I fibers and nuclear ratio. As for type II fibers, RTA was higher than C and CF. For plantaris, RT and RTA showed significant increases in myofibers type I compared to C and CF. For type II fibers, RTA showed a significant increase compared to C and CF. Regarding the nuclear ratio, RT and RTA showed a higher ratio than C, CF, and CAS. Our results demonstrated that both RT and RTA were not different among the analyzed morphological parameters. This fact can be explained by the absence of differences found in the training variables analyzed.  相似文献   
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