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971.
金融安全是一国的金融系统能够凭借各种手段抵御和消除来自内部和外部的各种威胁和侵害,确保一国正常的金融功能和金融秩序。文章对金融安全的国内外研究现状进行述评,就金融安全的研究背景,研究方法与模型、理论意义以及进一步的工作进行了阐述,使对该研究方向的理论、方法和意义有一个较清晰的了解。 相似文献
972.
刘旺 《电子科技大学学报(社会科学版)》2017,19(3):104-108
随着新媒体技术的发展,新媒体素养已成为衡量高校教师综合素质的重要标志。以高校教师新媒体素养为研究对象,从新媒体认知能力、新媒体知识与技能、新媒体应用能力三个维度建立高校教师新媒体素养评价指标体系;然后用层次分析法来确定各指标权重;最后通过问卷调查对高校教师新媒体素养现状进行研究,并针对存在的问题提出相应的对策和建议。研究对提升高校教师新媒体素养及提高教学效果具有一定的现实意义。 相似文献
973.
针对技术创新项目多因素的特征,结合TRIZ理论与DEA,从流程管理的视角综合系统、子系统以及超系统的要求构建评价指标并给出主观赋权与客观赋权集成的评价方法,从而精简提炼评价信息,建立四象限决策图,实现效率评价与指标权重的优化。然后,以科研型、高端装备制造业以及纺织业的三家主导型企业为例,用这种方法进行评价分析和决策。这为TRIZ理论的应用与企业进行技术创新项目效率的评价与决策提供了一种新途径。 相似文献
974.
国内生活质量指标体系研究现状评析 总被引:18,自引:0,他引:18
生活质量研究兴起于 2 0世纪 60年代的美国。中国在 80年代以后开始重视社会指标和生活质量研究。中国小康社会的生活质量指标研究成为社会学学者们关注的领域 ,中国目前只能选择客观指标的原因、体系及其权重 相似文献
975.
In this work we study the limiting distribution of the maximum term of periodic integer-valued sequences with marginal distribution belonging to a particular class where the tail decays exponentially. This class does not belong to the domain of attraction of any max-stable distribution. Nevertheless, we prove that the limiting distribution is max-semistable when we consider the maximum of the first kn observations, for a suitable sequence {kn} increasing to infinity. We obtain an expression for calculating the extremal index of sequences satisfying certain local conditions similar to conditions D(m)(un), m∈N, defined by Chernick et al. (1991). We apply the results to a class of max-autoregressive sequences and a class of moving average models. The results generalize the ones obtained for the stationary case. 相似文献
976.
Elisa Rubbo 《Econometrica : journal of the Econometric Society》2023,91(4):1417-1455
This paper revisits the New Keynesian framework, theoretically and quantitatively, in an economy with multiple sectors and input-output linkages. Analytical expressions for the Phillips curve and welfare, derived as a function of primitives, show that the slope of all sectoral and aggregate Phillips curves is decreasing in intermediate input shares, while productivity fluctuations endogenously generate an inflation-output tradeoff—except when inflation is measured according to the novel divine coincidence index. Consistent with the theory, the divine coincidence index provides a better fit in Phillips curve regressions than consumer prices. Monetary policy can no longer achieve the first-best, resulting in a welfare loss of 2.9% of per-period GDP under the constrained-optimal policy, which increases to 3.8% when targeting consumer inflation. The constrained-optimal policy must tolerate relative price distortions across firms and sectors in order to stabilize the output gap, and it can be implemented via a Taylor rule that targets the divine coincidence index. 相似文献
977.
Alexander Rotshtein Denis Katelnikov Ludmila Pustylnik Brian A. Polin 《Risk analysis》2023,43(5):958-978
This article offers a method for analyzing the reliability of a man–machine system (MMS) and ranking of influencing factors based on a fuzzy cognitive map (FCM). The ranking of influencing factors is analogous to the ranking of system elements the probabilistic theory of reliability. To approximate the dependence of “influencing factors—reliability,” the relationship of variable increments is used, which ensures the sensitivity of the reliability level to variations in the levels of influencing factors. The novelty of the method lies in the fact that the expert values of the weights of the FCM graph edges (arcs) are adjusted based on the results of observations using a genetic algorithm. The algorithm's chromosomes are generated from the intervals of acceptable values of edge weights, and the selection criterion is the sum of squares of deviations of the reliability simulation results from observations. The method is illustrated by the example of a multifactor analysis of the reliability of the “driver–car–road” system. It is shown that the FCM adjustment reduces the discrepancy between the reliability forecast and observations almost in half. Possible applications of the method can be complex systems with vaguely defined structures whose reliability depends very much on interrelated factors measured expertly. 相似文献
978.
979.
Paul M. Johnson Corey E. Brady Craig Philip Hiba Baroud Janey V. Camp Mark Abkowitz 《Risk analysis》2020,40(9):1795-1810
The concepts of vulnerability and resilience help explain why natural hazards of similar type and magnitude can have disparate impacts on varying communities. Numerous frameworks have been developed to measure these concepts, but a clear and consistent method of comparing them is lacking. Here, we develop a data-driven approach for reconciling a popular class of frameworks known as vulnerability and resilience indices. In particular, we conduct an exploratory factor analysis on a comprehensive set of variables from established indices measuring community vulnerability and resilience at the U.S. county level. The resulting factor model suggests that 50 of the 130 analyzed variables effectively load onto five dimensions: wealth, poverty, agencies per capita, elderly populations, and non–English-speaking populations. Additionally, the factor structure establishes an objective and intuitive schema for relating the constituent elements of vulnerability and resilience indices, in turn affording researchers a flexible yet robust baseline for validating and expanding upon current approaches. 相似文献
980.
健康促进医院建设是一项系统性有机整体,以提升全人群健康素养和健康水平为目的,应用健康促进的理论、理念和策略,建立以病患需求和以人民健康为中心的医疗健康服务系统,为员工、患者、社区居民等提供一个良性互动、互相促进的健康组织。目前我国的健康促进医院建设仍处于探索完善阶段,文章以SPO理论为依据,将健康促进医院评价分为结构、过程和结果三个维度,运用层次分析法(AHP)构建包含 6 个一级指标和 21 个二级指标的评价指标体系,以期为健康促进医院建设的规范化、高质量发展提供科学、合理、可操作的评价指标体系,也为健康促进医院的管理和质量改进提供指导依据。 相似文献