基于属性访问控制中的敏感属性保护研究

在象Internet这样的开放系统中,基于属性的访问控制(ABAC)机制比基于身份的访问控制机制更显优越性,但容易造成敏感属性的暴露问题。自动信任协商(ATN)技术正好能解决这一问题。本文分析和研究了ABAC ATN系统中如何使用属性确认策略和信任目标图协议建立资源请求者和资源提供商之间的信任关系,保护请求者的敏感属性和隐私,并讨论了相关的安全问题。     

一种基于信任管理技术的相关研究

本文针对目前分布式计算安全领域涉及到信任模型和信任管理技术研究中的不足,重点对信任模型的描述能力,信任关系量化的形式和影响信任关系的因素等进行研究.力求加大信任模型对信任关系的动态性、主观性和多属性建模的支持,改善信任评估的准确性和动态适应能力.     

家族企业传承意愿、伙伴间信任关系与网络战略选择

经过三十多年的快速发展,我国家族企业正在进入传承的高峰时期,而家族传承是家族企业最显著的特征之一;网络战略是家族企业成长的重要方式和策略选择。采用对浙江和重庆家族企业的调查数据,实证检验家族传承意愿对家族企业网络战略选择的影响,并分析伙伴间信任关系在家族传承意愿与家族企业网络战略选择之间的中介作用,结果表明：（1）家族传承意愿正向影响家族企业网络中心度和密度,负向影响网络关系持久度和开放度;（2）伙伴间信任关系在家族传承意愿与家族企业网络中心度之间起完全中介作用,而在家族传承意愿与家族企业网络密度之间起部分中介作用。家族企业网络战略选择应与家族传承意愿相匹配,着力培育相互信任的伙伴关系,并加强对伙伴间关系的维护和管理。     

体育专业与非体育专业大学生人际信任的比较研究

本研究以体育专业和非体育专业大学生为研究对象,采用肖水源编制的《社会支持评定量表》和人际信任问卷,对体育专业和非体育专业大学生社会支持、人际信任状况及社会支持与人际信任的关系进行研究,并探讨课余时间参加体育活动对社会支持、信任的影响,不仅有助于了解体育专业和非体育专业大学生人际信任现状,而且为大学生诚信教育和心理教育提供一定的理论参考。     

"诚信"的反思与构建

诚信,是社会美德和创造经济繁荣的根本。中国在现代化进程中,建基于传统伦理价值体系中的诚信系统已不能适应现代社会的生活,而适合现代社会新的系统还没有完全建立健全,这样,现代生活不可避免地面临着严重的诚信问题,甚至面临严重“诚信危机”。本文从社会关系的演变角度出发,对“诚信”的涵义进行了探索并分析了问题产生的本质原因,最后从文化教育的视角初步构建了现代社会的“诚信”机制。     

Providing census tabulations to government security agencies in the United States: The case of Arab Americans

In the summer of 2004, it was revealed that the U.S. Census Bureau had provided tabulations in 2002 and 2003 on Arab Americans to the Department of Homeland Security that included detailed information on the number of people of Arab backgrounds living in selected ZIP codes. Although not a violation of law, the Census Bureau realized that this perceived breach of confidentiality would have a negative impact on public trust, and within a few months following the news of the Arab American tabulations it announced that it would no longer assist law enforcement and intelligence agencies with tabulations on ethnic groups and other sensitive populations. In spite of this damage control, we believe that the Bureau's tabulation of Arab Americans provides momentum to a process that adversely affects data quality by increasing both non-response and the cost of obtaining survey and census data. We argue that there are no “methodological fixes” that can repair the damage, and further that public relations campaigns and internal administrative changes are not optimal solutions because of the governing structure within which the Bureau currently operates. Ultimately, the best way to limit the damage already done is to effect a political solution. Toward this end we describe short- and long-term actions. In the long run, we recommend removing the Census Bureau from the Executive branch of government and re-structuring it under a permanent and non-political oversight panel similar to either the Federal Reserve Board or the Congressional Budget Office. Such a move would make a strong statement that the Bureau is non-partisan federal statistical agency.     

电子商务中的信任及其建立

文章在明确了电子商务中信任内涵的基础上,从在线公司本身、公司网站、消费者个体特征、电子商务环境这几个角度分析了电子商务中信任的影响因素,并从法律、技术、第三方信任等方面阐明了如何促进电子商务中信任的建立。     

浅论跟单信用证支付条件下海运提单的作用——质押与信托占有

就提单在跟单信用证支付条件下的作用进行了探讨，论述了跟单信用证支付方式下提单持有人将提单向银行出质，作为质押，银行对提单享有质权。同时，论述了提单的信托占有以及银行的信托权利问题。     

集值映象对与单值映象的公共不动点定理

在单值映象与集值映象相容或次相容的条件下,给出了完备凸度量空间中集值映象对于单值映象存在公共不动点的一个充分条件,改进和推广了文[1-4]中的已知结果。     

Evaluation of Sigma-Metric and Application of Quality Tools in Clinical Laboratory of a Tertiary Care Hospital

Variability in analytical performance of some analyte indicated the need of evaluation of quality plan of our laboratory. We tried to put the same degree of effort into our quality metrics as we put into the laboratory processes themselves. Application of six sigma methodologies improve the quality by focusing on the root causes of the problems in performance and analyzing by flowcharts, fishbone diagrams and other quality tools. Sigma metric was calculated for laboratory parameters for a period of 8 months during 2018–19. The analytes with poor sigma metric were free Thyroxine (FT3, FT4), Sodium, Calcium and Magnesium. Sigma metric of free Thyroxine (FT3, FT4), Sodium, Calcium and Magnesium were below 3. A road map for process improvement was designed with DMAIC (Define-Measure-Analyze-Improve-Control) model to solve the issue. Possible causes for low analytical performance of the particular analytes were depicted in Fishbone diagram. The Fishbone analysis identified the water quality issues with electrolyte analysis while high ambient temperature was culprit for poor assay performance of free Thyroxine. Sigma metric of the analytical performance was assessed once again after root cause analysis. Sigmametric showed marked improvement in control phase. Identification of problems led to reduction in non value added work leading to adequate resource utilization by addressing the priority issue. Therefore, DMAIC tool with Fish bone model analysis can be recommended as a well suited method for troubleshooting in poor performance of laboratory parameter.