Interrogating conceptions of leadership: school principals,policy and paradox     

Karen E. Starr 《School Leadership & Management》2014,34(3):224-236

Currently educational research literature demonstrates wide discussion and endorsement of ‘distributed’ leadership while concurrently traditional, hegemonic forms prevail in practice. This article investigates understandings about educational leadership held by Australian school principals. The article describes the contradictory conceptions about educational leadership currently in circulation. It interrogates underlying assumptions and questions how both hegemonic and newer leadership conceptions and assumptions serve educational leaders. Data from principals around the country and across education systems reinforced the predominance of un-theorised or under-theorised notions about leadership, with similar assumptions found in important policy artefacts and practices. This article emerges from interviews with 100 principals focusing on their professional learning needs, which revealed interesting ideas, issues and dilemmas concerning ‘leadership’. It fills a gap in research on distributed leadership by exploring contradictions inherent in policy, practice and understandings in this area. The article is structured into four sections. First, extant literature on this topic and the research are explained. Second, the article focuses on principals' conceptions about leadership and those inherent within important policy and practical artefacts. A discussion of the findings focuses on the discrepancy between theory and policy endorsement and the views of practitioners. Finally, the article canvasses the implications of the research.  相似文献   

点电荷在导体球壳内任意位置时电势的分布     

张景秀  杨波 《烟台职业学院学报》2003,9(4):64-66

详细讨论了点电荷在导体球壳内任意位置时,导体球壳所处空间电势、球壳内壁感应电荷的分布。  相似文献   

网格计算     

黄河 《浙江传媒学院学报》2003,10(2):79-80

网格计算是利用网络中一些闲置的处理能力来解决复杂问题的计算模式。  相似文献   

基于J2EE架构的事务管理应用研究     

陆宏谦  石冰 《临沂师范学院学报》2005,27(3):115-118

描述了基于J2EE架构的事务管理在项目中的应用,研究了J2EE项目中使用事务的方法,分布式环境中的事务处理及两阶段提交方法实现,分析总结了事务应用中应遵循的习惯.  相似文献   

Mobile Agents for Distributed and Heterogeneous Information Retrieval   总被引：1，自引：0，他引：1  

Subrata?DasEmail author  Kurt?Shuster  Curt?Wu  Igor?Levit 《Information Retrieval》2005,8(3):383-416

The heterogeneous, distributed and voluminous nature of many government and corporate data sources impose severe constraints on meeting the diverse requirements of users who analyze the data. Additionally, communication bandwidth limitations, time constraints, and multiple data formats impose further restrictions on users of these distributed data sources. In this paper, we present an Agent-based Complex QUerying and Information Retrieval Engine (ACQUIRE) for large, heterogeneous, and distributed data sources. ACQUIRE acts as a softbot or interface agent by presenting users with a view of a single, unified, homogenous data source, against which users can pose high-level declarative queries. ACQUIRE translates each such user query into a set of sub-queries by employing a combination of planning and traditional database query optimization techniques. ACQUIRE then spawns a set of mobile agents corresponding to these sub-queries, which in turn retrieve the data from various distributed data sources by dynamically optimizing the retrieval strategy as it is carried out. These mobile agents carry with them data-processing code that can be executed at the remote site, thus reducing the size of data returned by the agent. When all mobile agents have returned, ACQUIRE filters and merges the retrieved data and presents the results to the user. While the system is still very much a work in progress, current validation experiments on simulated NASA Distributed Active Archive Centers (DAACs) have demonstrated that complex queries can be effectively decomposed and retrieved by this approach.  相似文献   

分布式认知视角的企业知识生态系统研究     

谢守美  赵文军 《情报理论与实践》2012,35(3):28-31

归纳总结国内外关于分布式认知与知识生态系统的研究现状,分析分布式认知理论与知识生态系统的相关性,探讨分布式认知理论对企业知识生态系统的指导作用。  相似文献   

基于ASP.NET“C语言程序设计”网络教学系统的设计与实现     

高祖彦 《岳阳职业技术学院学报》2010,25(2):95-97

针对如何构建分布式网络教学管理系统,在分布式应用管理模式、存储过程、Multicast技术等方面进行研究与探讨,阐述了网络教学管理系统的结构、功能以及实现的关键技术。结合《C语言程序设计》这门课程,利用ASP.NET技术和SQL Server开发了一个基于数据库的教学管理系统,该系统具有很强的交互性和可维护性。  相似文献   

Web2.0教育教学应用探析     

董乃谦 《四川教育学院学报》2013,29(1):42-44

Web2.0改革了传统的学习方式,Web2.0不仅支持协作学习、分布式学习还有利于建立学习共同体。web2.0时代的教育教学对教师和学习者也提出了新的要求。  相似文献   

分布式认知视角下促进元认知发展研究——基于多媒体环境     

王坤 《河北广播电视大学学报》2013,(3):43-45

分布式认知理论的提出,为研究认知活动提供了全新的视角,也为元认知培养方式提供了新的可能性。分布式认知理论强调媒体的作用,多媒体环境不仅能为外部表征提供多种辅助手段,还能为认知活动提供具体情境。在多媒体环境下,直观的外部表征、可视化的知识交流和实时线索的提供为元认知培养提供了全新的视角。  相似文献   

From school leader to educational leader     

Alma Harris 《School Leadership & Management》2013,33(5):415-417

ABSTRACT

This study builds on research which contends that just as effective principals must lead across a broad purview of responsibilities in order to build successful schools, so too must middle leaders. Decentralisation of school management has resulted in an expansion of school principals’ responsibilities, contributing to a further distribution of leadership responsibility to middle leaders. This conception of middle leadership requires a shift in understanding of the nature of middle leaders’ work. There is vast potential for middle leaders to contribute to their schools beyond subject administration, yet the research base yields limited insight on such work and on how middle leaders can be supported to accomplish it. This research finds that middle leaders who expand their leadership responsibilities do so in contexts that utilise school mission, policy enactment and organisational design as platforms for enhanced middle leadership.  相似文献