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   2747篇
  免费   174篇
管理学   157篇
民族学   7篇
人才学   1篇
人口学   269篇
丛书文集   11篇
理论方法论   387篇
综合类   22篇
社会学   1945篇
统计学   122篇
  2023年   50篇
  2022年   8篇
  2021年   16篇
  2020年   61篇
  2019年   65篇
  2018年   106篇
  2017年   144篇
  2016年   101篇
  2015年   78篇
  2014年   110篇
  2013年   1085篇
  2012年   96篇
  2011年   104篇
  2010年   65篇
  2009年   48篇
  2008年   73篇
  2007年   66篇
  2006年   79篇
  2005年   65篇
  2004年   64篇
  2003年   45篇
  2002年   40篇
  2001年   34篇
  2000年   17篇
  1999年   15篇
  1998年   18篇
  1997年   16篇
  1996年   12篇
  1995年   16篇
  1994年   25篇
  1993年   26篇
  1992年   18篇
  1991年   17篇
  1990年   16篇
  1989年   9篇
  1988年   9篇
  1987年   8篇
  1986年   9篇
  1985年   9篇
  1984年   11篇
  1983年   9篇
  1981年   15篇
  1980年   8篇
  1979年   6篇
  1978年   6篇
  1977年   3篇
  1975年   5篇
  1971年   2篇
  1967年   2篇
  1965年   2篇
排序方式: 共有2921条查询结果,搜索用时 15 毫秒
21.
Young adults entering the job market are finding that, despite strong corporate profits, economic growth is not trickling down to worker earnings, and federal policies are moving from the notion of entitlement to one of blame (Uchitelle, 1996, Sec. 4, p. 1). Adolescence is becoming increasingly confusing, since for many Americans economic opportunity is more fantasy than reality. This article highlights the declining opportunity for young adults and points out the limitations of existing adult developmental theory, both of which call for altered treatment conceptualizations that include the clinician operating as an anthropologist and utilizing the concepts of relationship-differentiation and response/ability from Stone Center writings.  相似文献   
22.
23.
European food retailers have increased their scale and scope while concentrating sales into large stores. Strategic implications include the need for scale to compete and organisational relationships to move from supply push to demand pull retailing. Consequences are different for private label and for branded manufacturers, who must respond to the demands of retail supply chains whilst retaining control of product development. Further concentration in both sectors is likely. Consumers are more mobile, but more captive to the retailer in store. Public policy makers are challenged to find new measures of retail power and both allow for innovation and ensure equitable shopping opportunities.  相似文献   
24.

Developing environments responsive to the aspirations of older people has become a major concern for social and public policy. Policies and programs directed at achieving “age-friendly” communities are considered to require a wide range of interventions, including actions at the level of the social and physical environment. This article compares the age-friendly approaches of two European cities, Brussels and Manchester, with a particular focus on policies and initiatives that promote active aging in an urban context. The article examines, first, the demographic, social, and multicultural contexts of Brussels and Manchester; second, the way in which both cities became members of the World Health Organization Global Network of Age-Friendly Cities and Communities; third, similarities and differences in the age-friendly approaches and actions adopted by both cities; and fourth, opportunities and barriers to the implementation of age-friendly policies. The article concludes by discussing the key elements and resources needed to develop age-friendly cities.  相似文献   
25.
An introduction is provided to this Social Development Quartet in which the articles focus on parent emotion socialization in the context of psychopathology and risk. In two articles, the samples of children and/or adolescents have a psychiatric diagnosis [oppositional defiant disorder (ODD) or depressive disorder]. The other two articles feature samples in which children and families have experienced serious risks [exposure to inter‐parental violence (IPV) or maternal incarceration]. The articles in this Social Development Quartet extend our knowledge of the impact of parental emotion socialization practices to contexts in which children and parents experience higher than normative risks. The work reported in these articles builds upon research on emotion socialization in normative contexts, illustrating the buffering effects of supportive parenting as well as its limits.  相似文献   
26.
The amount of radon in natural gas varies with its source. Little has been published about the radon from shale gas to date, making estimates of its impact on radon‐induced lung cancer speculative. We measured radon in natural gas pipelines carrying gas from the Marcellus Shale in Pennsylvania and West Virginia. Radon concentrations ranged from 1,520 to 2,750 Bq/m3 (41–74 pCi/L), and the throughput‐weighted average was 1,983 Bq/m3 (54 pCi/L). Potential radon exposure due to the use of Marcellus Shale gas for cooking and space heating using vent‐free heaters or gas ranges in northeastern U.S. homes and apartments was assessed. Though the measured radon concentrations are higher than what has been previously reported, it is unlikely that exposure from natural gas cooking would exceed 1.2 Bq/m3 (<1% of the U.S. Environmental Protection Agency's action level). Using worst‐case assumptions, we estimate the excess lifetime (70 years) lung cancer risk associated with cooking to be 1.8×10?4 (interval spanning 95% of simulation results: 8.5×10?5, 3.4×10?4). The risk profile for supplemental heating with unvented gas appliances is similar. Individuals using unvented gas appliances to provide primary heating may face lifetime risks as high as 3.9×10?3. Under current housing stock and gas consumption assumptions, expected levels of residential radon exposure due to unvented combustion of Marcellus Shale natural gas in the Northeast United States do not result in a detectable change in the lung cancer death rates.  相似文献   
27.
Non-heterosexual young women have a higher rate of unintended pregnancy than their heterosexual peers, but their fertility behaviors are understudied. We use longitudinal data from the Relationship Dynamics and Social Life study to investigate mechanisms contributing to non-heterosexual women’s higher pregnancy risk. These data include weekly reports of relationships, sex, and contraceptive use over 30 months. We compare the relationships and fertility behaviors of three groups: exclusively heterosexual (consistent heterosexual behavior, identity, and attraction); mostly heterosexual (heterosexual identity with same-sex behavior and/or same-sex attraction); and LGBTQ (any non-heterosexual identity). We find that mostly heterosexual and LGBTQ women behave differently from exclusively heterosexual women in ways likely to elevate their risk of unintended pregnancy: more distinct partners during the study period, more sexual intercourse with men, less frequent contraceptive use, less use of a dual method (condom plus hormonal method), and more gaps in contraceptive coverage. Mostly heterosexual women resemble LGBTQ women in their contraceptive behavior but have significantly more intercourse with men, which may increase their pregnancy risk relative to both LGBTQ and exclusively heterosexual women. We conclude by considering implications for LGBTQ health and the measurement of sexual minority populations.  相似文献   
28.
29.
This paper describes the treatment of an adolescent girl (age 16) who received the ACT with RAGE-Control intervention during her treatment in an urban inpatient psychiatry unit. ACT with RAGE-Control utilizes five traditional Cognitive Behavioral techniques combined with an active biofeedback videogame designed to strengthen a patient’s self-regulatory capacities while facing simulated stress in a virtual environment. The treatment is delivered as daily individual psychotherapy sessions over five consecutive days of an inpatient psychiatric admission. The following case illustrates the theory and techniques of the ACT with RAGE-Control intervention.  相似文献   
30.
Using data from the Demographic and Health Survey, this article analyses the relationship between HIV status and the socio‐economic and demographic characteristics of adults in Lesotho, Malawi, Swaziland and Zimbabwe. It constructs the risk profile of the average adult, computes the values of age, education and wealth where the estimated probability of infection assumes its highest value, and determines the percentage of adults for whom these three factors are positively correlated with that probability. It finds that in all four countries: (i) the probability of being HIV‐positive is higher for women than for men; (ii) the likelihood of infection is higher for urban than for rural residents; and (iii) there is an inverted‐U relationship between age and HIV status. Also that, unlike gender, rural/urban residence and age, the relationship between the probability of infection and wealth, education and marital status varies by country. The results provide support for country‐specific and more targeted HIV policies and programmes.  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