全文获取类型
收费全文 | 5218篇 |
免费 | 235篇 |
国内免费 | 51篇 |
专业分类
管理学 | 282篇 |
劳动科学 | 15篇 |
民族学 | 199篇 |
人口学 | 82篇 |
丛书文集 | 1448篇 |
理论方法论 | 256篇 |
综合类 | 2568篇 |
社会学 | 214篇 |
统计学 | 440篇 |
出版年
2024年 | 2篇 |
2023年 | 25篇 |
2022年 | 70篇 |
2021年 | 67篇 |
2020年 | 69篇 |
2019年 | 61篇 |
2018年 | 90篇 |
2017年 | 123篇 |
2016年 | 86篇 |
2015年 | 180篇 |
2014年 | 177篇 |
2013年 | 311篇 |
2012年 | 290篇 |
2011年 | 402篇 |
2010年 | 401篇 |
2009年 | 420篇 |
2008年 | 324篇 |
2007年 | 384篇 |
2006年 | 393篇 |
2005年 | 366篇 |
2004年 | 176篇 |
2003年 | 158篇 |
2002年 | 215篇 |
2001年 | 206篇 |
2000年 | 96篇 |
1999年 | 78篇 |
1998年 | 54篇 |
1997年 | 50篇 |
1996年 | 46篇 |
1995年 | 36篇 |
1994年 | 30篇 |
1993年 | 26篇 |
1992年 | 26篇 |
1991年 | 16篇 |
1990年 | 13篇 |
1989年 | 8篇 |
1988年 | 9篇 |
1987年 | 7篇 |
1986年 | 2篇 |
1985年 | 6篇 |
1984年 | 4篇 |
1983年 | 1篇 |
排序方式: 共有5504条查询结果,搜索用时 734 毫秒
211.
改革开放以来农村五保供养制度模式变迁探析 总被引:2,自引:0,他引:2
改革开放以来,我国农村五保供养制度随着农村经济体制改革深化和社会的变迁,与时俱进,在改革中发展,目前基本实现了从农民集体内部互助共济的传统救助模式,到以国家财政供养为主,集体保障、土地保障和社会帮扶为辅的现代社会保障模式的历史性变革。2006年新《农村五保供养工作条例》的出台,不仅标志着我国五保供养工作进入了规范化、法制化管理的新阶段,而且也标志着与社会主义市场经济体制相适应的新型农村五保供养制度的基本确立。 相似文献
212.
浙江模式:一个区域经济多重转型范式——多视野的三十年转型 总被引:2,自引:0,他引:2
基于经济转型多重性视点,本文从制度转型、工业化、城市化以及区域经济二重开放四个内涵,分别对"浙江模式"及其演进机理进行了分析.研究揭示:区域制度转型的浙江模式,是四个小区域模式的融合;区域工业化的浙江范式,是两个小区域工业化模式的聚合;区域城市化带有古典城市化的特征,"老板进城效应"突出;区域经济二重开放取先区际化后国际化的演进路径.浙江模式是这四个领域转型路径特征的融合.区域要素禀赋优势即个人商业才能的发挥与产业地方化及其集聚要求,形成转型的基础动力,这些动力促成了一种由基层到小区域,从小区域到较大区域再到省域范围的自下而上的倒逼式转型机制,由此赋予浙江转型以民营化的鲜明特征.但分析也表明,浙江模式的发挥,迄今仅限于地方政府有权处置的产业与行业范围,在超地方政府力量主宰的产业与行业,则显得无能为力. 相似文献
213.
214.
215.
远去与归来构成了一种方法论,这种方法论超越了乡土社会研究的村落传统.村落从来不是局限在村落的范围内的,通过行者的远去,村落的边界得到了跨越.同时考虑到归来取向的村落研究与远去取向的跨村落研究,一种田野民族志的方法论才堪称完整. 相似文献
216.
本文认为青藏民俗工艺在文化上具有复功能性特征,主要表现在民艺器物本身多元复合和人们对于民艺器物在使用基础上赋予的多重意涵;受多民族文化、多元宗教文化的影响,其审美内涵被赋予了多重的文化元素.青藏民俗工艺的造物思想则表现为青藏各族民间工艺的造物思想表现为积极的实用原则,典型的原生思维方式和典型的宗教哲学思辨方式,青藏各族的工艺的本质是生活的艺术化、信仰的生活化、宗教的习俗化. 相似文献
217.
Can the minimum living standard guarantee scheme enable the poor to escape the poverty trap in rural China? 下载免费PDF全文
The rural Minimum Living Standard Guarantee (Dibao) Scheme is the most important social assistance programme in rural China. However, how the rural Dibao programme affects household expenditures and whether it can enable the poor to escape the poverty trap are questions that remain largely unexplored. This study used data from the 2012 Rural Household Survey in China to investigate the impact of the rural Dibao programme on household expenditures. We found that the programme significantly improved the well‐being of low‐income households. Particularly, the programme significantly increased household expenditures on housing, education and health; furthermore, the impact was greater for households with educated household heads. However, the programme did not significantly affect household expenditures on food, transportation or farming inputs. The results imply that participation in the rural Dibao programme induces household investment in human capital, which could help to break the inter‐generational transmission of poverty and raise long‐run welfare. 相似文献
218.
Xiao-Hua Yu Jing Zhao Shu-Cheng Zhang Jian-Hui Li Jun-Biao Zheng Zheng Li 《The aging male》2017,20(4):235-240
Objective: To analyze the impact of age, BMI and sex hormone on aging males’ symptoms (AMS) and the 5-item version of the international index of erectile function (IIEF-5) scores in middle-aged and elderly Chinese men.Methods: A population-based cross-sectional study was conducted in Jiashan County. A total of 969 men, aged between 40 and 80 years old, were admitted. Physical examination and the sex hormones were measured, and AMS and IIEF-5 scores were assessed.Results: The oneway ANOVA analysis indicated older age groups had higher AMS total-scores, somatic and sexual sub-scores, and lower IIEF5 scores (all p?.01). Pairwise correlation (rpairwise) analyses showed the significant associations between AMS and age or sex hormone (cFT, Bio-T, SHBG, and LH) levels, and similar for IIEF5. However, when age was adjusted, the correlation coefficients (rpartial) weakened, and correlation significance disappeared, except LH (for AMS: rpartial?=?0.096, p?=?.009; for IIEF-5: rpartial?= ?0.140, p?=?.001). Multiple linear regressions confirmed the influence of increased age and LH on the AMS and IIEF5 scores.Conclusion: CFT, Bio-T and SHBG failed to yield any additional predicting information when age was adjusted. To improve the male reproductive health, future research should pay more attention on aging-related comorbidities and how to improve general wellness. 相似文献
219.
Variable selection for semiparametric proportional hazards model under progressive Type-II censoring
Variable selection is an effective methodology for dealing with models with numerous covariates. We consider the methods of variable selection for semiparametric Cox proportional hazards model under the progressive Type-II censoring scheme. The Cox proportional hazards model is used to model the influence coefficients of the environmental covariates. By applying Breslow’s “least information” idea, we obtain a profile likelihood function to estimate the coefficients. Lasso-type penalized profile likelihood estimation as well as stepwise variable selection method are explored as means to find the important covariates. Numerical simulations are conducted and Veteran’s Administration Lung Cancer data are exploited to evaluate the performance of the proposed method. 相似文献
220.
This paper treats the problem of stochastic comparisons for the extreme order statistics arising from heterogeneous beta distributions. Some sufficient conditions involved in majorization-type partial orders are provided for comparing the extreme order statistics in the sense of various magnitude orderings including the likelihood ratio order, the reversed hazard rate order, the usual stochastic order, and the usual multivariate stochastic order. The results established here strengthen and extend those including Kochar and Xu (2007), Mao and Hu (2010), Balakrishnan et al. (2014), and Torrado (2015). A real application in system assembly and some numerical examples are also presented to illustrate the theoretical results. 相似文献