全文获取类型
收费全文 | 837篇 |
免费 | 80篇 |
国内免费 | 8篇 |
专业分类
管理学 | 62篇 |
民族学 | 3篇 |
人口学 | 18篇 |
丛书文集 | 64篇 |
理论方法论 | 86篇 |
综合类 | 542篇 |
社会学 | 39篇 |
统计学 | 111篇 |
出版年
2024年 | 3篇 |
2023年 | 8篇 |
2022年 | 14篇 |
2021年 | 12篇 |
2020年 | 12篇 |
2019年 | 37篇 |
2018年 | 19篇 |
2017年 | 22篇 |
2016年 | 25篇 |
2015年 | 34篇 |
2014年 | 40篇 |
2013年 | 47篇 |
2012年 | 53篇 |
2011年 | 54篇 |
2010年 | 49篇 |
2009年 | 58篇 |
2008年 | 60篇 |
2007年 | 48篇 |
2006年 | 51篇 |
2005年 | 33篇 |
2004年 | 37篇 |
2003年 | 27篇 |
2002年 | 31篇 |
2001年 | 35篇 |
2000年 | 15篇 |
1999年 | 17篇 |
1998年 | 14篇 |
1997年 | 12篇 |
1996年 | 7篇 |
1995年 | 3篇 |
1994年 | 9篇 |
1993年 | 3篇 |
1992年 | 5篇 |
1991年 | 4篇 |
1990年 | 2篇 |
1989年 | 3篇 |
1988年 | 1篇 |
1987年 | 3篇 |
1986年 | 3篇 |
1985年 | 2篇 |
1984年 | 4篇 |
1983年 | 1篇 |
1982年 | 1篇 |
1981年 | 1篇 |
1980年 | 2篇 |
1979年 | 1篇 |
1978年 | 2篇 |
1977年 | 1篇 |
排序方式: 共有925条查询结果,搜索用时 15 毫秒
51.
倪靖 《南京林业大学学报(人文社会科学版)》2009,9(3):93-96
3G时代图书馆工作面临新的考验。为了应对这一革命性的冲击,高校图书馆要做好数字化的核心准备工作,逐步建立并完善例如“手机图书馆”的建设。一方面可以提高数字化图书的普及与使用率,另一方面也可以在演进的过程中确实保护高校的既得利益。 相似文献
52.
黄光鑫 《渝西学院学报(社会科学版)》2001,(3)
本文首先定义了三交系、三交系的扩充的概念 ,然后给出了一类三交系的构造方法 ,最后给出了该类三交系的规模的统一公式表示。同时 ,我们得到了一类特殊的三交系判定的充分必要条件 相似文献
53.
R W Hart S C Freni D W Gaylor J R Gillette L K Lowry J M Ward E K Weisburger P Lepore A Turturro 《Risk analysis》1986,6(2):117-154
The Color Additives Scientific Review Panel considered whether there was information sufficient to perform a carcinogenic risk assessment on the colors D&C Red No. 19 (R-19), D&C Red No. 37 (R-37), D&C Orange No. 17 (O-17), D&C Red No. 9 (R-9), D&C Red No. 8 (R-8) and FD&C Red No. 3 (R-3) and to evaluate the assessments sent to FDA as part of the petitions for use of the colors for drug and external uses by the Cosmetic, Toiletry and Fragrance Association (CTFA). There is a lack of human data concerning the colors for making a human health assessment, so the assessments are based upon the extrapolation of animal data. The risk assessments are determined for exposure to single chemicals. Excluded from consideration are possible effects from exposure to multiple chemicals, such as co-carcinogenesis, promotion, synergism, antagonism, etc. In the light of recent efforts in establishing a consensus in risk assessment, the Panel has determined that the CTFA assessments for R-10, O-17, and R-9 are consistent with present acceptable usages, although it questions some of the assumptions used in the assessments. The Panel identified a number of general assumptions made, and discusses their validity, their impact on total uncertainty, and the potential options to address the gaps in understanding that necessitate the assumption. The Panel also derived revised risk estimates using more "reasonable" assumptions than "worst-case" situations, for 90th percentile and average exposure. For those assumptions that are easily quantifiable, the Panel's estimates are less than an order of magnitude lower than the CTFA risk estimates, indicating that the underestimates and overestimates of the CTFA risk estimates tend to balance each other. The impact of most of the assumptions is not quantifiable. The assessment for R-3 is complicated by the fact that there is no good skin penetrance study for this color. It was assumed that the penetrance is similar to that of another water-soluble xanthene color, R-19. It is expected that the absorption of the color is not likely to exceed that of the smaller molecule, R-19. Therefore, the risk estimates are similar to the CTFA estimates, but with different reasoning. The estimates for R-8 and R-37 are different from the others in that there is a lack of any exposure or toxicological information on these colors.(ABSTRACT TRUNCATED AT 400 WORDS) 相似文献
54.
AbstractManagement consultants have become ubiquitous in helping improve organizational performance. This paper presents an investigation of the impact of their interventions on organizational sustainability and growth through the performance improvement work carried out for and with their clients. The paper presents the findings of a questionnaire survey of 440 respondents from 206 countries; 197 of respondents were Small and Medium Sized Enterprises (SMEs) and 243 from large organizations. There is a particular focus on knowledge transfer in terms of urgency and impact of the work with regard to the extent to which consulting interventions in SMEs, as well as large multinational corporations, embed long-term sustainability practices. 相似文献
55.
AbstractThis paper extends operations strategy theory on efficiency and flexibility trade-offs to the emergent phenomenon of redistributed manufacturing (RDM). The study adopts a multiple-case design including five small and five large pharmaceutical firms. We propose that organizations can gain the efficiency benefits of centralized manufacturing and the flexibility advantages of RDM by building an ambidexterity capability. To build such a capability, large firms can structurally partition their manufacturing and supply management functions, with one sub-unit managing centralized production and the other RDM. Smaller enterprises can build an ambidexterity capability by creating the right organizational context, where multi-skilled workers switch between efficient and flexible tasks. This paper contributes to theory by explaining the emergence of RDM using an organizational ambidexterity lens, laying the groundwork for new theory development in the field. We provide managers with a practical example of how to build an ambidexterity capability to realize flexibility and efficiency advantages. 相似文献
56.
Bayesian robustness is studied for ε-contamination classes of prior distributions. Nonparametric classes of contsminations such as the class of all unimodal spherically symmetric densities are considered here. Posterior φ-divergence and its curvature are used to measure the sensitivity of priors on the resulting posterior densities. Examples are provided to illustrate our results. 相似文献
57.
对推进贵阳市建设循环经济型生态城市的思考 总被引:2,自引:0,他引:2
蒋雪梅 《贵州工业大学学报(社会科学版)》2004,6(1):39-42
贵阳市政府作出将贵阳市建成全国首个循环经济生态城市的重大决定,把贵阳市带入一个崭新的发展阶段。贵阳市建设循环经济型生态城市既有优势也有劣势,而政府的积极倡导和扶助,相应法律、法规的建立,投资政策和项目的选择等都是应予关注的问题。 相似文献
58.
The Impact of the Therapist's Curiosity on the Treatment Process of Children and Adolescents 总被引:1,自引:0,他引:1
Lynn Borenstein 《Child and Adolescent Social Work Journal》2002,19(5):337-355
Therapists bring their own initiative, interest, and wonder—their professional curiosity—into treatment sessions. Some children and adolescents pull away in reaction to this curiosity, bristling or withdrawing, if only for a moment. This can happen abruptly, even in response to the first hello, but most often it occurs subtly, over the course of treatment. These children and adolescents may be replaying the ruptures in relationships they experienced when they have expressed their own initiative and curiosity to important others in their lives. Therapists need to utilize opportunities to understand the dynamics, explore where the original ruptures may have occurred, and bring the experience into therapeutic focus. Case vignettes illustrate these dynamics. 相似文献
59.
以设计为主线、三维为核心的工程图学教学改革--现代工程设计图形学(MEDG)教学研究与实践 总被引:3,自引:0,他引:3
工程设计现在已发展到全数字化阶段,能使设计、制造一体化过程得以实现的核心是三维几何模型,二维投影图已不是这一过程所必需的文件.因此,在总结和继承原教改成功经验的基础上,我们对传统的工程图学课程进行改革,突出"三维"和"设计"两个重点,形成了现代工程设计图形学(MEDG)课程体系. 相似文献
60.
《青春岁月:学术版》2013,(11)
本文介绍了虚拟现实技术的相关概念与3DMAX软件的简介,探讨在实践设计表现中运用3DMAX软件制作虚拟现实场景的方法和步骤。 相似文献