Assessing Library Automation and Virtual Library Development in Four Academic Libraries in Oyo,Oyo State,Nigeria

The paper examines the level of library automation and virtual library development in four academic libraries. A validated questionnaire was used to capture the responses from academic librarians of the libraries under study. The paper discovers that none of the four academic libraries is fully automated. The libraries make use of librarians with background training in computer applications coupled with in-house and sponsored conferences and workshops. Again, none of the automation and internet equipments in these four institutions is assessed to be adequate. The paper recommends that parent institutions should give priority to the development of library automation and virtual library development through internet connectivity by voting adequate fund to this project.     

脊髓亚急性联合变性24例临床分析

目的探讨脊髓亚急性联合变性（SCD）患者的临床特点、诊断及预后。方法回顾性分析24例SCD患者的临床特点、辅助检查结果、治疗及预后。结果 21例血清维生素B12水平降低。17例行脊柱MRI检查,10例有异常信号,呈条带状等T1长T2异常信号。24例患者均给予维生素B12肌肉注射,14例治愈（58.3%）,6例明显好转（25.0%）,4例效果不明显（16.7%）。结论 SCD患者主要表现为脊髓后索、侧索受累,周围神经受累亦较常见。及时应用维生素B12治疗,症状可明显好转。本病为可治性疾病,预后与病程密切相关,应重视早期诊断、治疗。     

Subdivision surface modeling system based on arbitrary topological curves network and combined subdivision

Arbitrary topological curve network has no restriction in topology structure,so it has more powerful representing ability in defining complex surfaces.A complex surface modeling system is presented based on arbitrary topological curve network and the improved combined subdivision method,its functions including creating and editing curve network,and generating and modifying curve network's interpolated surface.This modeling system can be used to the process of products'concept design,and its applications is ...     

FARMER: A novel approach to file access correlation mining and evaluation reference model

File semantic has proven effective in optimizing large scale distributed file system. As a consequence of the elaborate and rich I/O interfaces between upper layer applications and file systems, file system can provide useful and insightful information about semantic. Hence, file semantic mining has become an increasingly important practice in both engineering and research community. Unfortunately, it is a challenge to exploit file semantic knowledge because a variety of factors could affect this information exploration process. Even worse, the challenges are exacerbated due to the intricate interdependency between these factors, and make it difficult to fully exploit the potentially important correlation among various semantic knowledges. This article proposes a file access correlation miming and evaluation reference (FARMER) model, where file is treated as a multivariate vector space, and each item within the vector corresponds a separate factor of the given file. The selection of factor depends on the application, examples of factors are file path, creator and executing program. If one particular factor occurs in both files, its value is non-zero. It is clear that the extent of inter-file relationships can be measured based on the likeness of their factor values in the semantic vectors. Benefit from this model, FARMER represents files as structured vectors of identifiers, and basic vector operations can be leveraged to quantify file correlation between two file vectors. FARMER model leverages linear regression model to estimate the strength of the relationship between file correlation and a set of influencing factors so that the “bad knowledge” can be filtered out. To demonstrate the ability of new FARMER model, FARMER is incorporated into a real large-scale object-based storage system as a case study to dynamically infer file correlations. In addition FARMER-enabled optimize service for metadata prefetching algorithm and object data layout algorithm is implemented. Experimental results show that is FARMER-enabled prefetching algorithm is shown to reduce the metadata operations latency by approximately 30%–40% when compared to a state-of-the-art metadata prefetching algorithm and a commonly used replacement policy.     

在线学习管理系统中本科生与研究生交互比较研究(英文)

学习者与在线内容的交互被认为是决定网络教学和学习有效性的重要因素之一.学习环境中的任何事情总是一触即发,支持学习者与在线内容进行交互.当学习者与内容交互时,内部的反思性思考与对话发生了.本研究试图比较在线学习管理系统中研究生课程和本科课程中学习者交互之间的差别.基于所提出的研究学习者与在线内容交互的框架,研究者收集了学习管理系统日志和学习活动数据库中的相关数据;基于学习者与在线课程内容的交互模式和行为对收集到的数据进行了分析;并对教师和学习者在在线论坛中的讨论和交流的内容进行分析,尤其调查了已发生的交流的维度、深度和分类.基于上述研究成果.研究者认为应该加强网络内容的设计和传输,从而提升开放远程学习中在线学习环境的有效性.     

语文学科隐性课堂文化的探究——基于公开课场域的考察

该文拟从教育社会学的相关视角,对公开课场域内的隐性课堂文化进行考察,揭示出其中呈“受抑状态”的学生文化的三种形态表征：“话语空间的被剥夺”、“想象空间的被剥夺”和“人文空间的被强加”,试图从教师文化及其观照下的教师行为等角度提出一些对策性建议。     

在线社区中的“仙女环”参与模型研究

开放教育资源运动正由注重资源共享逐渐转向注重开放学习,文章介绍了在线学习社区中用户的参与发生在两个层面:参与的"可视"层,可以有不同的参与模式;要素交互的"不可视"层,与自然界中发生的菌根快速传播的地下网络导致的蘑菇"仙女环"非常类似。这种多维度的要素交互影响着用户的参与意愿和参与行为。文章认为参与的"仙女环"模型为分析和发展网络社区提供了非常丰富的工具,对中国网络学习社区及精品课程的研究和发展有非常重要的意义。     

基于ERP管理思想,构建大型仪器设备开放共享体系

针对当前高校大型仪器设备共享平台运行过程中暴露出的问题,提出了基于ERP管理思想,建立大型仪器设备开放共享体系的思路和做法,介绍了学校大型仪器设备开放共享体系建设的具体内容,旨在进一步提高学校大型仪器设备使用效益,同时提供参考和借鉴。     

开放教育《Dreamweaver网页设计》课程改革实践

根据电大开放教育的特点,结合学生的实际情况,以"建构主义学习理论"为指导,探索实用、有效、可行的教学方法,对《Dreamweaver网页设计》课程的教学过程进行了改革实践。     

基于反向旅游理论的营销策略研究

反向旅游是一种追求＂景观差异极大化＂的旅游形式,反向旅游市场是一个极具潜力的市场。按照＂极大化差异景观＂的产生原因,可以将反向旅游分为自然型反向旅游、人文型反向旅游和综合型反向旅游。旅游者的反向旅游意向是既已存在且比较强烈的,通过对相应的营销策略的研究,可以起到既能满足旅游者需求,又能实现营销目标的作用。在对反向旅游进行类型划分的基础上,以对北京市民调查结果为依据,结合反向旅游理论和旅游者心理特征,运用经典的4P营销组合理论,从产品策略、价格策略、销售渠道策略和促销策略四个方面提出反向旅游营销策略。