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   6125篇
  免费   365篇
  国内免费   71篇
管理学   216篇
劳动科学   2篇
民族学   125篇
人才学   1篇
人口学   278篇
丛书文集   466篇
理论方法论   539篇
综合类   3573篇
社会学   1016篇
统计学   345篇
  2024年   27篇
  2023年   76篇
  2022年   101篇
  2021年   137篇
  2020年   237篇
  2019年   224篇
  2018年   211篇
  2017年   227篇
  2016年   201篇
  2015年   200篇
  2014年   377篇
  2013年   666篇
  2012年   431篇
  2011年   498篇
  2010年   405篇
  2009年   334篇
  2008年   285篇
  2007年   337篇
  2006年   298篇
  2005年   304篇
  2004年   229篇
  2003年   178篇
  2002年   167篇
  2001年   144篇
  2000年   79篇
  1999年   42篇
  1998年   40篇
  1997年   29篇
  1996年   15篇
  1995年   19篇
  1994年   8篇
  1993年   10篇
  1992年   8篇
  1991年   4篇
  1990年   5篇
  1989年   2篇
  1987年   3篇
  1986年   1篇
  1982年   1篇
  1980年   1篇
排序方式: 共有6561条查询结果,搜索用时 15 毫秒
1.
I call for a globally informed sociology of comparative placemaking that integrates historical and contemporary processes and includes the ephemeral, institutional, and personal. By placemaking, I am referring to the explicit or tacit cooperation among people to create, maintain, and give meaning to places in space through bodily occupation given differential resources and constraints. I review select place, space, and community-based literature about urban, Black, migrant, LGBTQ, and international populations to think about how we can build upon and integrate multiple theoretical, methodological, and epistemological insights to form an explicit placemaking research agenda. A US focus on neighborhoods contrasts with a comparative examination of global urban networks, social polarization, and transformation of the built environment in the interdisciplinary field of global urban studies (Ren, 2018). I argue for a placemaking research agenda that bridges insight from US Urban Sociology with Global Urban Studies to consider how various structures and actors constrain and facilitate place projects. With a globally reaching and comparatively informed sociology of placemaking, we can illuminate our multi-structured story of place and agency in context. We can answer questions about how and why we co-create and are simultaneously disciplined by the process of creation.  相似文献   
2.
随着房地产调控和城市化进程的加快,商业地产越来越受到开发商的青睐。城市综合体作为商业地产的典型代表以其多结构多层级的功能组合迅速提升区域价值而拥有了“城中之城”的美誉,在东部地区二三线城市大量涌现。但城市综合体带动城市发展的同时,也引发了一系列风险亟待关注。  相似文献   
3.
The product partition model (PPM) is a well-established efficient statistical method for detecting multiple change points in time-evolving univariate data. In this article, we refine the PPM for the purpose of detecting multiple change points in correlated multivariate time-evolving data. Our model detects distributional changes in both the mean and covariance structures of multivariate Gaussian data by exploiting a smaller dimensional representation of correlated multiple time series. The utility of the proposed method is demonstrated through experiments on simulated and real datasets.  相似文献   
4.
政府是污染减排的重要主体,了解其行为对污染减排的作用对提升污染减排效果及实现中国绿色发展具有重要意义。创造性地将政府减排目标纳入研究框架,构建面板门槛模型,从工业污染排放总量的角度分析政府减排目标、产业结构、经济规模等因素对地方污染减排的影响,并用工业污染物强度进行稳健性检验。结果显示,政府减排目标对污染减排的作用存在阶段性不同:经济发展初级阶段,政府减排目标对污染排放总量的作用方向为正; 经济发展水平较高时,作用方向为负; 两者之间存在适应性调整阶段,作用方向具有不确定性,但总体由正向作用向负向作用转变。产业结构对工业污染排放总量的作用方向因污染物种类而异,经济规模对工业污染排放总量作用方向为正。  相似文献   
5.
The socio-economic literature has focused much on how overall inequality in income distribution (frequently measured by the Gini coefficient) undermines the “trickle down” effect. In other words, the higher the inequality in the income distribution, the lower is the growth elasticity of poverty. However, with the publication of Piketty’s magnum opus (2014), and a subsequent study by Chancel and Piketty (2017) of evolution of income inequality in India since 1922, the focus has shifted to the income disparity between the richest 1% (or 0.01%) and the bottom 50%. Their central argument is that the rapid growth of income at the top end of millionaires and billionaires is a by-product of growth. The present study extends this argument by linking it to poverty indices in India. Based on the India Human Development Survey 2005–12 – a nationwide panel survey-we examine the links between poverty and income inequality, especially in the upper tail relative to the bottom 50%, state affluence (measured in per capita income) and their interaction or their joint effect. Another feature of our research is that we analyse their effects on the FGT class of poverty indices. The results are similar in as much as direction of association is concerned but the elasticities vary with the poverty index. The growth elasticities are negative and significant for all poverty indices. In all three cases, the disparity between the income share of the top 1% and share of the bottom 50% is associated with greater poverty. These elasticities are much higher than the (absolute) income elasticities except in the case of the poverty gap. The largest increase occurs in the poverty gap squared – a 1% greater income disparity is associated with a 1.24% higher value of this index. Thus the consequences of even a small increase in the income disparity are alarming for the poorest.  相似文献   
6.
在延吉城市旅游形象的诸要素中,民俗要素最为重要,因此,在对延吉城市旅游形象进行定位时,无论是从延吉城市形象的硬件上(如交通、餐饮),还是在城市旅游形象的软件上(如市民素质、民俗民风等方面),都要突出民俗特色,同时要用多种形式大力宣传。  相似文献   
7.
This study was undertaken to determine how middle school children assess the effects of welfare reform on their daily lives. The study consisted of thirty interviews with children and their mothers recruited from a middle school in a large, metropolitan area. From the children's perspective, multiple jobs and evening/night hours interfered with the child-parent relationship. Other consequences included grades going down and not getting to school on time. All the children stated that mothers should work, but most children felt mothers should only work when their children are in school. Welfare and poverty were issues about which children were teased at school.  相似文献   
8.
Since the mid-1990s, homelessness has become a major issue of public discussion in Japan, and is often viewed as a new social problem facing Japanese society. The issue of homelessness contrasts images of the absence of poverty and homelessness in postwar Japan, often explained based on the unique features of Japanese-style employment and welfare, containing poverty and unemployment. This paper contrasts these views with a perspective on the continuity of poverty, and homelessness in postwar Japan. Specifically, I discuss the characteristics of homelessness in Tokyo, how they relate to the structure of the economy and employment practices, and how the problems of today's homeless are accommodated in the welfare system. I argue that the homeless cast light on patterns of loss of employment, housing, and means of subsistence, characteristic to Japan's economy and welfare system, and contribute to a new understanding of the dynamics of poverty in contemporary Japan.  相似文献   
9.
改革开放以来,我国人口较少民族在各方面得到了巨大的发展,然而,由于粗放式发展、自然环境、历史等方面的原因,我国人口较少民族少数地区仍至今存在着不同程度的贫困问题,影响了小康社会的全面实现。本文即围绕我国人口较少民族的部分特殊性,以科学发展观为指导,探讨在新的历史时期我国人口较少民族的扶贫开发对策。  相似文献   
10.
Spatial variation in soil inorganic nitrogen across an arid urban ecosystem   总被引:4,自引:1,他引:3  
We explored variations in inorganic soil nitrogen (N) concentrations across metropolitan Phoenix, Arizona, and the surrounding desert using a probability-based synoptic survey. Data were examined using spatial statistics on the entire region, as well as for the desert and urban sites separately. Concentrations of both NO3-N and NH4-N were markedly higher and more heterogeneous amongst urban compared to desert soils. Regional variation in soil NO3-N concentration was best explained by latitude, land use history, population density, along with percent cover of impervious surfaces and lawn, whereas soil NH4-N concentrations were related to only latitude and population density. Within the urban area, patterns in both soil NO3-N and NH4-N were best predicted by elevation, population density and type of irrigation in the surrounding neighborhood. Spatial autocorrelation of soil NO3-N concentrations explained 49% of variation among desert sites but was absent between urban sites. We suggest that inorganic soil N concentrations are controlled by a number of ‘local’ or ‘neighborhood’ human-related drivers in the city, rather than factors related to an urban-rural gradient.  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