数据库安全与保密技术   总被引：3，自引：0，他引：3  

许俊  郑家光 《四川职业技术学院学报》2006,16(1):112-113

介绍数据库安全保密的重要意义和评估安全数据库的相关标准,讨论保证数据库安全的技术方法和管理措施, 并就MS SQL安全问题提供解决方案．  相似文献   

实践社区核心成员大五人格特征及其与沟通技能的关系     

杨丽恒  李双辉  石文典 《河西学院学报》2007,23(3):97-102

文章采用修订的大五人格问卷和自编的沟通技能问卷,对宁夏8家企事业单位中15家实践社区的核心成员进行了调查,结果表明:大五人格问卷和沟通技能问卷信度和效度良好;实践社区核心成员一般拥有敏感的、外向的、温和的、开拓性、高利他性、灵活性等人格特质;核心成员的沟通技能在年龄、职位、文化程度、单位性质等变量上均有不同程度的显著性差异;大五人格特质与沟通技能之间存在密切的关系,五个因素中的社交性、开放性和利他性对沟通技能水平具有较大的影响。  相似文献   

数据交叉表在实际生活中的应用与理论分析     

魏连秋  张义红 《衡水学院学报》2006,8(1):39-41

数据库在计算机发展的今天已经越来越广泛地被使用,而数据库中数据的多种形式变换更是经常的,其中行列数据的变换是较难的,通过对该问题进行深入分析,联想到关系表中数据的逻辑形式,利用Excel的数据透视表和VFP中的交叉表来实现行列数据交换较为合适,进而利用SQL查询语句分析了行列数据交换的实质。  相似文献   

C语言和PASCAL语言的对比学习     

黄晓因 《思茅师范高等专科学校学报》2003,19(3):27-29

掌握了一门程序设计语言后学习其它的语言课程，应有意识地进行对比。文中重点从数据结构、语言工具两个方面比较了C语言和PASCAL语言的异同并进一步指出：在学习进程中贯穿对比思维，可达到事半功倍、温故知新的效果。  相似文献   

A cross-cultural investigation of students' preferences for lecturers' personalities in Britain, Malaysia and the United States     

Viren Swami  Adrian Furnham  Ismail Maakip  Sharani Ahmad  Nurul Hudani  Peter S.K. Voo  Andrew N. Christopher  Jeanette Garwood 《Learning and individual differences》2007,17(4):307-315

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建筑设计中PDM系统开发的关键问题及其实现技术     

焦思红  屈云光 《北京工业职业技术学院学报》2003,(4)

根据PDM系统建设的实际,提出了开发PDM系统中的几个关键问题,主要包括角色管理、工作流管理、片本控制以及应用软件集成等,对于每一种问题均给出了相应的解决方案。  相似文献   

Making sense of learner and learning Big Data: reviewing five years of Data Wrangling at the Open University UK     

Bart Rienties  Simon Cross  Vicky Marsh  Thomas Ullmann 《Open Learning》2017,32(3):279-293

Most distance learning institutions collect vast amounts of learning data. Making sense of this ‘Big Data’ can be a challenge, in particular when data are stored at different data warehouses and require advanced statistical skills to interpret complex patterns of data. As a leading institute on learning analytics, the Open University UK instigated in 2012 a Data Wrangling initiative. This provided every Faculty with a dedicated academic with expertise data analysis and whose task is to provide strategic, pedagogical and sense-making advice to staff and senior management. Given substantial changes within the OU (e.g. new Faculty structure, real-time dashboards, two large-scale adoptions of predictive analytics approaches, increased reliance on analytics), this embedded case study provides an in-depth review of lessons learned of five years of data wrangling. We will elaborate on the design of the new structure, its strengths and potential weaknesses, and affordances to be adopted by other institutions.  相似文献   

Objectivity as standardization in data-scientific education policy,technology and governance     

Ben Williamson  Nelli Piattoeva 《Learning, Media and Technology》2019,44(1):64-76

ABSTRACT

New data-driven technologies appear to promise a new era of accuracy and objectivity in scientifically-informed educational policy and governance. The data-scientific objectivity sought by education policy, however, is the result of practices of standardization and quantification deployed to settle controversies about the definition and measurement of human qualities by rendering them as categories and numbers. Focusing on the emerging policy agenda of ‘social and emotional learning and skills,’ this paper examines the practices of ‘objectivity-making’ underpinning this new field. Objectivity-making depends on three translations of (1) scientific expertise into standardized and enumerable definitions, (2) standardization into measurement technologies, and (3) the data produced through measurement technologies into objective policy-relevant knowledge, which consolidates a market in SEL technologies. The paper sheds light on knowledge-making practices in the era of big data and policy science, and their enduring reliance on the precarious construction of objectivity as a key legitimator of policy-relevant scientific knowledge and ‘evidence-based’ education governance.  相似文献   

修辞在人物性格刻画中的作用──以《生活大爆炸》中的对白为例     

陈大方 《齐齐哈尔师范高等专科学校学报》2011,(6):43-44

《：生活大爆炸》是时下非常风靡的一部以＂科学天才＂为背景的情景喜剧,该片荣获了包括TCA奖和艾美奖在内的多个奖项。本文尝试从修辞的视域出发,分析人物对白中的修辞手法,如反语、曲解、反问、用典等,从而剖析其在人物性格刻画中的作用。  相似文献   

宇宙的核式结构模型     

苏燕飞 《洛阳师范学院学报》2011,30(8):38-41

根据原子核式结构模型和量子力学理论提出和论述宇宙核式结构的模型,利用宇宙核式结构模型解释了宇宙膨胀现象、哈勃定律、宇宙的产生和演化、奇点等几个重大问题,并进一步说明负(反)质量物质的存在.  相似文献