排序方式： 共有145条查询结果，搜索用时 28 毫秒
81.
本文在阐释科研团队内部知识整合理念的基础上,以复杂适应系统理论为基本分析视角,从团队式生产行为、参与人角色的多重性、知识整合模式的多样化、主客体相互作用等多个维度论述了团队内部知识整合的内涵,并从行动主体构成、主体联系多样化、主体的自组织和适应性进化行为、鲁棒性、复杂自适应性以及团队内部知识整合的不确定性等方面剖析了团队内部知识整合的特征,以及知识整合的复杂适应流程,最后从个体参与规则和总体的利益分配规则等角度论述了团队内部知识整合规则。 相似文献
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党的十九大报告提出了要加强国家创新体系建设,强化战略科技力量,到21世纪中叶实现建成世界科技强国和中华民族伟大复兴的宏伟目标。文章分析了国际一流科研机构在建设世界科技强国中的重要作用,提出国际化是国际一流科研机构履行国家使命的重要支撑,高水平国际化人才队伍则是科研机构国际化发展的核心要素。回顾了中科院实施国际化推进战略五年来所取得的成绩,分析了目前的差距与挑战,并提出以高水平国际化推进中科院建设国际一流科研机构的发展思路与具体举措。 相似文献
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Jonathan Ospina Betancurt Maria S. Zakynthinaki Maria Jose Martínes-Patiño Carlos Cordente Martinez Carmen Rodríguez Fernández 《Journal of sports sciences》2018,36(11):1262-1268
The purpose of this study was to assess the veracity of the Court of Arbitration for Sport’s assertion that sex-differences in athletic performance in elite-standard track and field competition is of the order of 10–12%. Exponential curves were fitted to the data of selected track and field events of the finals of all IAAF World Championships and Olympic Games from 1983 to 2016. For each curve, the coefficient of determination R2 was calculated, in combination the corresponding 95% confidence intervals for the curve constants. Sex-differences were evaluated via differences in the fitted curves between men and women. Mean performances of winners, as well as overall performance means of all participants, were also analyzed. The calculated sex-difference was 8.2 ± 1.0% – 11.8 ± 2.1% for sprints, 10.3 ± 3.3% – 12.8 ± 4.0% for middle and long-distance events, 9.7 ± 2.9% – 13.1 ± 2.9% for relays and 14.2 ± 2.2% – 25.0 ± 4.4% for jumps. This study therefore confirms that the percentage difference accepted by the CAS is appropriate for elite-standard track and field events. 相似文献
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Jonathan Ospina Betancurt Maria S. Zakynthinaki Maria Jose Martinez-Patiño Carlos Cordente Martinez 《Journal of sports sciences》2018,36(21):2464-2471
The purpose of this study was to examine whether the difference in elite-standard track and field performance between women athletes with and without hyperandrogenism reaches the 10–12% difference in performance between men and women, using only results from elite-standard track and field final competitions. Officially available data from two hyperandrogenic women (Caster Semenya and Dutee Chand) were compared with the characteristic performance of 200m and 800m elite-standard finals. The finishing times of Caster Semenya, before her ineligibility to compete in 2009 and after the suspension of the 2011 IAAF Hyperandrogenism Regulations were found to be respectively 1.24% and 1.49% faster than the predicted performance in 800m finals. When compared with the result of the second classified, the difference was respectively 0.65% and 2.08%. The analysis of the finishing times of Dutee Chand did not lead to any conclusions due to the lack of available data. The present study indicates that the percentage difference in performance between women with and women without hyperandrogenism does not reach the 3% difference requested by the Court of Arbitration for Sport for the reinstatement of the Hyperandrogenism Regulations, neither does it reach the 10% accepted range of difference in performance between men and women. 相似文献
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以2008-2013年沪深两市上市公司为研究样本,本文运用logit回归研究了总的税会差异(BTD)、操纵性税会差异(ABTD)与不同动机的盈余管理行为(EM)之间的关系。研究表明,随着负的总税会差异(BTD-)与负的操纵性税会差异(ABTD-)的扩大,企业的盈余管理行为(EM)也随之增加。进一步研究发现,伴随企业所得税会计准则的执行,中国税收-会计差异逐渐呈分离之势。且从会计信息需求者的角度而言,税收-会计差异是识别上市公司盈余质量的一个更为可靠的指标。本文研究为税务部门更加有效地甄别与管理企业规避税收的行为,提供了一定的理论与实践支持。 相似文献
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中科院通过实施"大气灰霾追因与控制"B类先导专项,通过实验模拟、外场观测以及模式模拟等研究对大气灰霾形成机理进行了系统的研究。我国的大气污染由多种排放复合而成,表现为排放源多样,污染物成分复杂、浓度高,不同污染物之间存在相互影响、相互促进的关系。根据灰霾形成特点,现阶段治理的基本思路应该在继续做好源头减排的同时,集中力量解决冬半年重污染问题,在管控措施上进一步增强针对性。 相似文献
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未来我国农业的转型发展面临严峻挑战,保障粮食等主要农产品供给的任务更加艰巨,迫切需要理论与技术创新。"十三五"期间,国家出台了一系列政策、规划推进农业供给侧改革。中科院将继续发挥人才高地优势,持续面向"种业发展""地力提升"和"绿色农业技术"为主线开展研发,聚焦解决农业重大科学问题;攻克共性关键技术;进行区域农业产业技术集成,开展优化农业资源配置示范;为农业可持续发展不断提供新的思路、技术和方法。文章解析了供给侧改革的内涵,从上述3个方面对中科院"十三五"规划的农业科技发展进行了解读。 相似文献
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中国科学院“未来先进核裂变能——ADS嬗变系统”战略性先导科技专项研究团队 《中国科学院院刊》2015,30(4):527-534
加速器驱动次临界系统(ADS,Accelerator Driven Sub-critical System)可提供高通量的硬中子,嬗变长寿命核素能力强,可大幅降低核废料的放射性危害,实现核废料的最少化,被国际公认为是核废料处理最有前景的技术途径。文章分析了ADS研究的国家需求,概述了国内外发展现状,同时介绍了中科院战略性先导科技专项(A类)"未来先进核裂变能——ADS嬗变系统"实施进展情况,并对未来发展进行了展望。 相似文献
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贺嘉 《武汉体育学院学报》2017,51(12):44-50
国际体育仲裁院在里约奥运会上首次设立了反兴奋剂特别仲裁庭。此举为国际体育仲裁院建立专门反兴奋剂奥运会体育仲裁制度开创了先河，在奥运会体育仲裁史上有里程碑意义，同时可预示奥运会体育仲裁的发展方向。基于对反兴奋剂特别仲裁庭的仲裁规则、裁决案件和设立动因的分析，对其存在的问题进行剖析，以此探析奥运会体育仲裁的发展方向及该机制对我国体育仲裁制度的启示。 相似文献