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   3355篇
  免费   167篇
管理学   210篇
民族学   21篇
人才学   1篇
人口学   295篇
丛书文集   17篇
理论方法论   475篇
综合类   27篇
社会学   2275篇
统计学   201篇
  2023年   31篇
  2022年   11篇
  2021年   27篇
  2020年   108篇
  2019年   106篇
  2018年   138篇
  2017年   189篇
  2016年   131篇
  2015年   95篇
  2014年   89篇
  2013年   659篇
  2012年   133篇
  2011年   144篇
  2010年   87篇
  2009年   85篇
  2008年   117篇
  2007年   123篇
  2006年   121篇
  2005年   113篇
  2004年   136篇
  2003年   76篇
  2002年   85篇
  2001年   71篇
  2000年   32篇
  1999年   45篇
  1998年   38篇
  1997年   35篇
  1996年   20篇
  1995年   25篇
  1994年   34篇
  1993年   39篇
  1992年   19篇
  1991年   29篇
  1990年   33篇
  1989年   23篇
  1988年   21篇
  1987年   28篇
  1986年   25篇
  1985年   21篇
  1984年   24篇
  1983年   26篇
  1982年   9篇
  1981年   21篇
  1980年   14篇
  1979年   9篇
  1978年   15篇
  1976年   10篇
  1975年   9篇
  1974年   7篇
  1973年   6篇
排序方式: 共有3522条查询结果,搜索用时 277 毫秒
41.
Retail business development is a broad goal for both private business interests as well as local policymakers, yet the goal of retail opportunities for local residents themselves is often seen as secondary. This paper considers the argument that retail opportunities and sense of community are in fact linked in important ways, links that reinforce the social fabric of a community and/or neighborhood. The paper first briefly reviews the inherent linkages between retail shopping and local development patterns, and then considers the sense of community in the context of Garfield County in western Colorado. Based on the key questions derived from this background, we formally test the inter-relationship between local retail spending and sense of community from detailed survey data, then more broadly consider the factors that critically shape a locality's “sense of community.” These findings shape several important policy implications.  相似文献   
42.
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   
43.
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   
44.
45.
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   
46.
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   
47.
This study examined the role of depressive symptoms, acute intoxication, and risk rationale in men’s use of condom use resistance (CUR) tactics in an experimental study. Participants included 313 heterosexual male, nonproblem drinkers, ages 21 to 30. Participants were randomized to one of four beverage conditions: no alcohol, placebo, low (.04%) alcohol dose, or high (.08%) alcohol dose. They read an eroticized scenario depicting a consensual sexual encounter with a female partner who requested a condom to prevent either pregnancy or sexually transmitted infections (STIs) (risk rationale) and then indicated their intentions to use 10 different CUR tactics. Hypotheses related to the pharmacological, dosage, and expectancy effects of alcohol were tested in a generalized linear model. In intoxicated (.04% and .08%) men who were given a pregnancy risk rationale, depressive symptoms were associated with stronger intentions to use CUR tactics than in sober (control and placebo) men. Men who received a high alcohol dose (.08%) and who were given a pregnancy risk rationale reported higher intentions to use CUR tactics than those who received a lower alcohol dose (.04%). Findings suggest that the pharmacological effects of alcohol on men’s likelihood to resist condoms vary by the saliency of the risk rationale and mood-related variables.  相似文献   
48.
Non‐governmental organizations (NGOs) and the government of Nepal have made some effort to reduce poverty in Nepal by creating women's affiliation groups, some of which are micro‐credit organizations. Using capabilities as defined by Amartya Sen (Development as freedom, Oxford University Press, New Delhi, 2000), which includes employment opportunities, women's ownership in productive resources such as land and/or homes, educational opportunities, and women's participation in decision‐making in the family, this study evaluated the extent to which women's ethnic group or caste affiliation affected a woman's likelihood of being empowered by participation in these groups. We analyzed a sample of 8,973 women which was taken from the 2011 Nepal Demographic and Health Survey. Previous research has demonstrated that participation in gender‐based groups is correlated with higher economic status. This study adds to the literature on women's affiliation groups by investigating the impact of structural factors, such as caste and ethnicity, on women's self‐help group participation (women's groups and credit groups).  相似文献   
49.
50.
Recent research into school readiness has highlighted the importance of not only children's cognitive and socio‐emotional skills, but also the degree to which they have family support in the home. The current study examines the association between social success upon school entry and teacher‐ratings of school readiness as assessed by the Brief Early Skills and Support Index (BESSI), controlling for language ability. Importantly, social success was assessed using a “child's‐eye view” with peer‐reported assessments of both social preference and reciprocated friendships. A total of 244 children (131 boys, Mage = 61 months, SD = 4.78 months) in their first year of formal schooling participated. Child school readiness was found to be important for social preference, with the association being more marked for boys versus girls. Family support was the only independent predictor of children's reciprocated friendships. The use of the BESSI, with its broad scope compared to other measures of school readiness, highlights the importance of focusing both on a child's cognitive and socio‐emotional skills at school entry and their family support when exploring the association of school readiness to children's social success at the transition to formal schooling.  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