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   1466篇
  免费   124篇
  2024年   3篇
  2023年   39篇
  2022年   8篇
  2021年   13篇
  2020年   72篇
  2019年   70篇
  2018年   191篇
  2017年   162篇
  2016年   153篇
  2015年   94篇
  2014年   101篇
  2013年   312篇
  2012年   55篇
  2011年   46篇
  2010年   37篇
  2009年   29篇
  2008年   33篇
  2007年   23篇
  2006年   10篇
  2005年   9篇
  2004年   10篇
  2003年   5篇
  2002年   9篇
  2001年   19篇
  2000年   8篇
  1999年   6篇
  1998年   5篇
  1997年   8篇
  1996年   4篇
  1995年   11篇
  1994年   4篇
  1993年   4篇
  1992年   4篇
  1989年   1篇
  1988年   1篇
  1987年   3篇
  1986年   2篇
  1985年   2篇
  1984年   2篇
  1983年   1篇
  1982年   3篇
  1981年   1篇
  1980年   2篇
  1979年   2篇
  1977年   1篇
  1976年   2篇
  1975年   1篇
  1973年   3篇
  1972年   5篇
  1970年   1篇
排序方式: 共有1590条查询结果,搜索用时 15 毫秒
941.
In this article, we construct new, simple, and nonparametric tests for spatial independence using symbolic analysis. An important aspect is that the tests are free of a priori assumptions about the functional form of dependence, making them especially suitable in situations where the dependence is nonlinear. We define the concept of a similarity relation, which is used to keep track of similarity between neighboring observations. This similarity count is used to construct new statistical tests based on both random permutation simulations and derived asymptotic distributions. We include a Monte Carlo study to better illustrate the properties and the behavior of the new tests under several synthetically generated processes. Apart from being competitive compared with other nonparametric and parametric tests, results underline the outstanding power of the new tests for nonlinear‐dependent spatial processes.  相似文献   
942.
943.
944.
The process of colonial expansion in the sixteenth century fundamentally changed Spanish culture. Along with race, religion, ethnicity, status and honour, definitions of proper gendered and sexual behaviour changed as well. This article argues that Spanish communities and institutions came to define foreign men as examples of a subordinate and dangerous masculinity. The threat that foreign male sexuality posed to Spanish women and thus Spanish patriarchy – not only in the colonies, but within Spain itself – led institutions to prosecute foreign men. This essay draws on the language used in Inquisition and ecclesiastical court cases against foreign men as well as in Spanish literature of the period.  相似文献   
945.
In 1973, while recovering copper cargo from a 20th‐century ship wrecked off the Ponta do Leme Velho on the south‐east side of Sal Island, Cape Verde, explosives revealed an earlier ship cargo with dozens of Portuguese faience plates and bowls, glass beads and metal objects, including buckles, ammunition and copper manillas. The assemblage, including the ceramics and a marked silver tastevin, provide a site date between 1680 and 1700. The research presented here is a result of collaboration between CPAS and the authors in 2008 to analyse this assemblage in the context of late 17th‐century maritime trade.  相似文献   
946.
947.
948.
949.
950.
Focusing on children's experience-driven cosmologies revealed through interviews and survey responses, this article seeks to analyse and interpret the way children explain their migration from the USA to Mexico within the context of increases in both voluntary and forced return migration of Mexicans since 2005. It draws from representative samples of students (aged 9–16) enrolled in both public and private schools in several Mexican states, which are complemented by data drawn from in-depth interviews that complicate the sociological typologies about migration, motives for migration, and returnees. The goals of this article are as follows: (a) to illuminate and value children's own narratives about their migration experiences and (b) to discuss the contribution of diverse and apparently contradictory micro-, meso-, and macro-level approaches in studying migrant children.  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