研究性学习活动中存在的问题

研究性学习是第八次基础教育课程改革的一项重要举措.在实施中,由于对其基本内涵把握不准、学科教学排斥、教师指导能力欠缺、招生考试制度制约以及缺乏良好的社会支持系统等问题的存在,制约着研究性学习的开展,必须加以解决.     

非英语专业学生课外自主学习情况调查与研究

调查表明:非英语专业学生的课外自主学习往往抱着工具性动机,自主性差,且所花时间少,因此,应采取相应策略,大力培养学生的自主性学习能力。     

基于决策树和bloom filter的包过滤防火墙

分析了基于链表的包过滤防火墙的性能和特点,针对其不足,将决策树和Bloom Filter引入到包过滤防火墙中,并对其中涉及到的算法和步骤的开销进行了分析.分析表明,这种方法可以有效提高包过滤防火墙的性能.     

王船山与曾国藩:不同文化冲突中的处世抉择

由于二人所处时代的文化冲突不同，王船山与曾国藩的处世抉择不同，生命风貌各异。其中，王船山强烈的“夏夷之辨”、曾国藩的经世致用分别成为各自生命的特征。     

世纪之交高等师范院校面临的挑战与抉择

世纪之交的中国高等师范院校面临着严峻的挑战,其中最主要的挑战来自五方面：即社会主义市场经济对现代师范教育体制的冲击;知识经济时代对高素质教师的要求;基础教育的发展对提高师资学历层次和专业素质的迫切需要,名牌综合性大学兴办师范专业对现行师范教育体制格局的打破;国家近年对重点大学的政策倾斜和重点投入拉大了差距;这些挑战,对于高等师范校的未来前途,都具有决定性、根本性、全局性的影响。中国的高等师范院校应     

对数据仓库的认识

计算机技术的发展和各种新的需求，是数据仓库技术的产生的强大动力。数据仓库技术将从事事务处理的传统数据处理与具有分析特性的处理分离开来，使得数据仓库，结合数据库成为一个新的体系化环境。数据仓库，联机分析处理及数据挖掘构成了这一体系的三大技术，并且使得决策支持系统的真正实现成为可能。数据仓库和ＤＳＳ是密不可分的，利用了 ＤＷ技术的支持，企业的决策分析才更有真实的意义。     

Distributing and Showing Farmer Learning Videos in Bangladesh

Purpose: To describe the results of showing farmer learning videos through different types of volunteers.

Design/Methodology/Approach: Semi-structured interviews with volunteers from different occupational groups in Bangladesh, and a phone survey with 227 respondents.

Findings: Each occupational group acted differently. Shop keepers, tillage service providers, agricultural input and machine dealers reached fairly small audiences. Tea stall owners had large, male audiences. Non-governmental organisations and community-based organisations, reached more women. The cable TV (dish-line) operators showed the videos on local TV, but some were reluctant to do so again. The Union Information Service Centres showed the videos and reached women viewers. Half of the official government extension agents surveyed also showed the videos publically.

Practical Implication: This video featured maize, wheat and rice seeding machinery. Because the machinery is complex and requires hands-on training, this first video aimed to expose tillage and sowing service providers and farmers to the machinery, without trying to teach them how to use it. But some farmers were so interested that they watched the video many times to learn more about the equipment. Before farmers and service providers decide to buy machinery for direct seeding, they still want to see and learn from demonstration plantings, to examine first-hand how the crop behaves when planted with the new equipment.

Originality/Value: Video can be an effective way of sharing high-quality information with a large audience, if properly distributed.     

Integrated MSS effects: An empirical health care investigation

Since accurate decisions are required for effective management, much research has focused on information systems that support decision making. Recently, this research has engendered frameworks, such as the management support system (MSS), that are designed to provide comprehensive and integrated support for the decision making process. Few, if any, studies have empirically measured the effects of these frameworks on decision making. This article offers empirical evidence on MSS effectiveness. It overviews the decision making process, presents an MSS for supporting the process, and assesses the influences of the MSS on the process and outcomes of health care decision making. The paper also examines the implications of the analyses for information systems research and health care practice.     

在基因-脑-行为的框架下探索果蝇面对竞争的视觉线索的抉择行为

2001年11月16日出版的Science [1] 发表了唐世明和郭爱克的“果蝇面对竞争的视觉线索的抉择行为”的研究论文,在相关领域引起了广泛兴趣,已陆续被国际权威学者引用。主要介绍了其研究内容、研究方法及所取得的进展,并简单介绍了论文发表后国际上的引用情况以及新的进展。