全文获取类型
收费全文 | 3102篇 |
免费 | 161篇 |
国内免费 | 35篇 |
专业分类
管理学 | 343篇 |
民族学 | 35篇 |
人口学 | 25篇 |
丛书文集 | 320篇 |
理论方法论 | 199篇 |
综合类 | 2139篇 |
社会学 | 119篇 |
统计学 | 118篇 |
出版年
2024年 | 10篇 |
2023年 | 25篇 |
2022年 | 61篇 |
2021年 | 42篇 |
2020年 | 44篇 |
2019年 | 73篇 |
2018年 | 53篇 |
2017年 | 57篇 |
2016年 | 71篇 |
2015年 | 92篇 |
2014年 | 142篇 |
2013年 | 144篇 |
2012年 | 174篇 |
2011年 | 246篇 |
2010年 | 154篇 |
2009年 | 171篇 |
2008年 | 213篇 |
2007年 | 202篇 |
2006年 | 213篇 |
2005年 | 191篇 |
2004年 | 201篇 |
2003年 | 185篇 |
2002年 | 163篇 |
2001年 | 149篇 |
2000年 | 81篇 |
1999年 | 30篇 |
1998年 | 22篇 |
1997年 | 16篇 |
1996年 | 9篇 |
1995年 | 7篇 |
1994年 | 9篇 |
1993年 | 8篇 |
1992年 | 6篇 |
1991年 | 6篇 |
1990年 | 2篇 |
1989年 | 4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3298条查询结果,搜索用时 156 毫秒
61.
企业战略联盟风险防范体系的架构研究 总被引:6,自引:0,他引:6
在对企业战略联盟存在的风险及规避措施进行理论透析的基础上,给出了企业战略联盟伙伴选择机制的权值排序模型。提出了企业战略联盟的3种风险防范整合架构,并论述了三者之间的相关关系。最后通过实例对企业战略联盟伙伴选择机制的权值排序模型和风险防范整合体系进行了验证。 相似文献
62.
基于获取决策优先权的零售商战略联盟效益分析 总被引:8,自引:3,他引:8
对于由一个供应商和多个零售商组成的单一产品、单周期供应链,在确定型市场、零售商成本对称以及供应商具有关于零售商成本结构完全信息的情况下,考虑了同时带来运作成本与决策权分配变化(基于获取决策优先权)的零售商定货数量决策联盟。利用博弈论方法,研究了获取决策优先权的零售商战略联盟对参与联盟的零售商、未参与联盟的零售商、供应商以及供应链整体收益的影响。证明这种零售商战略联盟不可能使供应链中所有成员都同时增加收益。但在一定的条件下,联盟能实现某种部分"多赢";使供应链整体、供应商和参与联盟的零售商收益增加,或使供应商和参与联盟的零售商收益增加。 相似文献
63.
龙跃 《重庆工商大学学报(社会科学版)》2018,35(1):92-97
集群化是战略性新兴产业发展的重要模式和主要路径.针对我国战略性新兴产业集群发展中面临的产业技术储备不足与市场培育相对滞后并存的问题,从产业集群、战略性新兴产业集群、产业集群协同发展等理论以及与生态学融合发展视角,综述了战略性新兴产业集群协同发展的相关理论基础,探寻现有理论研究的一般规律以及存在的“缺口”,并分析了下一步研究可以拓展的方向,即结合我国战略性新兴产业集群协同发展的特点,将生态位理论嫁接、融合到产业集群理论中,重点剖析战略性新兴产业集群发展中的“技术生态位—市场生态位”协同跃迁的作用机理,由此提出相关的机制、政策等. 相似文献
64.
We examine the challenges of governance facing organizations that pursue a social mission through the use of market mechanisms. These hybrid organizations, often referred to as social enterprises, combine aspects of both charity and business at their core. In this paper we distinguish between two ideal types of such hybrids, differentiated and integrated, and we conceptualize two key challenges of governance they face: accountability for dual performance objectives and accountability to multiple principal stakeholders. We revisit the potential and limitations of recently introduced legal forms to address these challenges. We then theorize about the importance of organizational governance and the role of governing boards in particular, in prioritizing and aligning potentially conflicting objectives and interests in order to avoid mission drift and to maintain organizational hybridity in social enterprises. Finally, we discuss future research directions and the implications of this work for rethinking traditional categories of organizations, namely business and charity. 相似文献
65.
66.
《Journal of Statistical Computation and Simulation》2012,82(8):1463-1478
In some situations, an appropriate quality measure uses three or more discrete levels to classify a product characteristic. For these situations, some control charts have been developed based on statistical criteria regardless of economic considerations. In this paper, we develop economic and economic statistical designs (ESD) for 3-level control charts. We apply the cost model proposed by Costa and Rahim.[Economic design of X charts with variable parameters: the Markov chain approach, J Appl Stat 28 (2001), 875–885] Furthermore, we assume that the length of time that the process remains in control is exponentially distributed which allows us to apply the Markov chain approach for developing the cost model. We apply a genetic algorithm to determine the optimal values of model parameters by minimizing the cost function. A numerical example is provided to illustrate the performance of the proposed models and to compare the cost of the pure economic and ESD for three-level control charts. A sensitivity analysis is also conducted in this numerical example. 相似文献
67.
In late 2009 China launched an innovative, voluntary programme that by 2011 had extended pension coverage to 326.4 million people in the rural sector, including contributors and beneficiaries. It requires one contribution per year and provides a flat‐rate benefit and a contributions‐related benefit through a contributory individual account, with a government guarantee that the benefit will continue for life. The programme encourages participation of persons who do not pay income taxes, and thus have no tax incentive to participate, by providing substantial government subsidies. As a further incentive, old‐age benefits are provided to older parents when all their adult children participate in the contributory programme. 相似文献
68.
69.
Using In Vitro High‐Throughput Screening Data for Predicting Benzo[k]Fluoranthene Human Health Hazards
下载免费PDF全文
![点击此处可从《Risk analysis》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Today there are more than 80,000 chemicals in commerce and the environment. The potential human health risks are unknown for the vast majority of these chemicals as they lack human health risk assessments, toxicity reference values, and risk screening values. We aim to use computational toxicology and quantitative high‐throughput screening (qHTS) technologies to fill these data gaps, and begin to prioritize these chemicals for additional assessment. In this pilot, we demonstrate how we were able to identify that benzo[k]fluoranthene may induce DNA damage and steatosis using qHTS data and two separate adverse outcome pathways (AOPs). We also demonstrate how bootstrap natural spline‐based meta‐regression can be used to integrate data across multiple assay replicates to generate a concentration–response curve. We used this analysis to calculate an in vitro point of departure of 0.751 μM and risk‐specific in vitro concentrations of 0.29 μM and 0.28 μM for 1:1,000 and 1:10,000 risk, respectively, for DNA damage. Based on the available evidence, and considering that only a single HSD17B4 assay is available, we have low overall confidence in the steatosis hazard identification. This case study suggests that coupling qHTS assays with AOPs and ontologies will facilitate hazard identification. Combining this with quantitative evidence integration methods, such as bootstrap meta‐regression, may allow risk assessors to identify points of departure and risk‐specific internal/in vitro concentrations. These results are sufficient to prioritize the chemicals; however, in the longer term we will need to estimate external doses for risk screening purposes, such as through margin of exposure methods. 相似文献
70.
Cai Tuo 《Social Sciences in China》2016,37(4):138-151
Governance is a kind of holistic governance and the notion of governing holistically should be established. The holisticity of governance is reflected in the unity and coordination between value rationality and instrumental rationality, normative appeal and practical appeal as well as global governance and state governance. Global and state governances are two strategic considerations in contemporary China. Actively participating in global governance and rationally promoting state governance is the rational choice of contemporary China, which plays a unique and significant role in realizing the social transformation and national rejuvenation and modernization of contemporary China. Deepening state governance with the help of global governance and promoting global governance with the support of state governance is the basic idea and dimension of understanding and grasping the interaction, coordination and overall planning between the two. The restrictions and effects of global governance on state governance are mainly reflected in such considerations as objects, mechanisms, concepts and interests of governance, and modernization of state governance system and improvement of governance capacity can promote and deepen global governance in a more effective way. 相似文献