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   37410篇
  免费   771篇
  国内免费   1篇
管理学   4644篇
民族学   229篇
人才学   6篇
人口学   3485篇
丛书文集   171篇
教育普及   3篇
理论方法论   3429篇
现状及发展   1篇
综合类   451篇
社会学   18732篇
统计学   7031篇
  2023年   232篇
  2022年   186篇
  2021年   249篇
  2020年   664篇
  2019年   990篇
  2018年   1168篇
  2017年   1491篇
  2016年   1122篇
  2015年   792篇
  2014年   1036篇
  2013年   6450篇
  2012年   1427篇
  2011年   1248篇
  2010年   943篇
  2009年   849篇
  2008年   1033篇
  2007年   968篇
  2006年   954篇
  2005年   787篇
  2004年   796篇
  2003年   724篇
  2002年   734篇
  2001年   859篇
  2000年   741篇
  1999年   729篇
  1998年   578篇
  1997年   512篇
  1996年   528篇
  1995年   539篇
  1994年   484篇
  1993年   474篇
  1992年   547篇
  1991年   538篇
  1990年   517篇
  1989年   474篇
  1988年   459篇
  1987年   397篇
  1986年   418篇
  1985年   454篇
  1984年   421篇
  1983年   398篇
  1982年   317篇
  1981年   270篇
  1980年   305篇
  1979年   322篇
  1978年   263篇
  1977年   241篇
  1976年   200篇
  1975年   202篇
  1974年   176篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
131.
The rise in the number of asylum seekers in Australia presents considerable challenges to the state as they are a self‐selected, demand‐driven group, whose numbers, country of origin, ethnic background, and social demographic characteristics cannot be determined in advance of their arrival. People who apply for protection at the border are regarded primarily as illegal immigrants, and only secondarily as asylum seekers, and the illegality of their entry has become the primary factor in the way they are treated by the state, rather than their need for protection. Two streams of asylum seekers and two streams of refugees have been created. There are marked differences in the treatment given while claims for protection are examined and once decisions have been made in their favor. This article examines the development of asylum policy in Australia and sets the discussion within a review of the number of people who have applied for and been granted protection in recent years.  相似文献   
132.
133.
This paper investigates the relationship of racial composition to neighborhood population change from 1910 to 1990 in the Cleveland metropolitan area. To better understand the long-term dynamics of urban neighborhood change, we focus our analysis upon the longitudinal relationship of race, socioeconomic status, and life cycle stage to changes in neighborhood population densities. First, we find that the more established neighborhoods of the African-American community have experienced dramatic declines in population since 1950, a pattern that represents a clear change from the earlier part of the twentieth century. Second, population loss is experienced through a variety of mechanisms, including the demolition of dwellings, the increase in housing vacancy, and the decline of household size. Third, much of this population loss should be interpreted within the context of high economic distress, occurring most frequently in older African-American communities. Over time, economic distress appears to be more important than race in and of itself in leading to the loss of neighborhood populations.  相似文献   
134.
Hydrocephalus and spina bifida are life-threatening conditions that often result in severe disabilities. Risks are much reduced by immediate surgery and careful management, but neither has been available for most of the sub-Saharan African population. This paper traces the growth of solutions and some socio-cultural resources that historically have supported family and community care for children with severe disabilities, mainly in Tanzania, and nearby Uganda, Kenya, Malawi, Zambia and Zimbabwe. Some community-based rehabilitation (CBR) work with children with spina bifida and hydrocephalus is described, and challenges to the CBR approach are noted from the increased survival of people with disabilities requiring complex care. More appropriate information, recognition of indigenous knowledge, enlistment of community resources and financial assistance are needed to enhance the lives of East Africans with hydrocephalus, spina bifida and other severely disabling conditions.  相似文献   
135.
Unemployment rates differ widely and persistently across counties. This article examines equilibrium forces related to this geographic disparity with a focus on California. We show that although seasonal variation in employment can account for some of the differences, it cannot explain the total variation. Factors such as educational attainment, age, and gender appear to be strongly related to unemployment differences. Individuals living in higher‐unemployment areas also have a lower propensity to migrate. Because migration is usually considered to be the main equilibrating force, this evidence helps further explain why unemployment rates across counties are persistently different.  相似文献   
136.
Arrow's axioms for social welfare functions are shown to be inconsistent when the set of alternatives is the nonnegative orthant in a multidimensional Euclidean space and preferences are assumed to be either the set of analytic classical economic preferences or the set of Euclidean spatial preferences. When either of these preference domains is combined with an agenda domain consisting of compact sets with nonempty interiors, strengthened versions of the Arrovian social choice correspondence axioms are shown to be consistent. To help establish the economic possibility theorem, an ordinal version of the Analytic Continuation Principle is developed. Received: 4 July 2000/Accepted: 2 April 2001  相似文献   
137.
To examine flexible work scheduling of married workers a conceptual framework was developed and tested using the 1997 Current Population Survey Work Schedules Supplement. Odds of flextime use were higher for married males, non-Hispanic whites, those with relatively higher levels of education and income, those with a preschool aged child, residents of the Midwest or West (as compared with the South), managers or professionals, and employees of the federal government.  相似文献   
138.
What do novice word learners know about the sound of words? Word‐learning tasks suggest that young infants (14 months old) confuse similar‐sounding words, whereas mispronunciation detection tasks suggest that slightly older infants (18–24 months old) correctly distinguish similar words. Here we explore whether the difficulty at 14 months stems from infants' novice status as word learners or whether it is inherent in the task demands of learning new words. Results from 3 experiments support a developmental explanation. In Experiment 1, infants of 20 months learned to pair 2 phonetically similar words to 2 different objects under precisely the same conditions that infants of 14 months (Experiment 2) failed. In Experiment 3, infants of 17 months showed intermediate, but still successful, performance in the task. Vocabulary size predicted word‐learning performance, but only in the younger, less experienced word learners. The implications of these results for theories of word learning and lexical representation are discussed.  相似文献   
139.
A general form for characterizing inverse Gaussian and Wald distributions, based on their respective length-biased distributions, is introduced. Further results for characterizations of the gamma distribution, the negative binomial distribution and some mixtures of them by using their lengthbiased distributions are establised.  相似文献   
140.
Betrayal by a significant object is seen as primary in causing behavioral and emotional disturbances in incest victims, leading to a pervasive identification with the aggressor and disturbances in object relations development. Identification with the aggressor is understood not as a uniform defense mobilized against a specific affect but as a complex compromise formation which defends against anxiety, while also providing libidinal, aggressive and superego gratifications. Far from simply attempting to overcome the past, identifications thus preserve affects that have become pleasurable and self-defining. Two case studies of adolescent girls illustrate how treatment can help victims recognize and begin to forego the sadomasochistic pleasure derived from these identifications, a relinquishment necessary for true mastery.  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