IMPROVING PRODUCTIVITY IN THE NEWSROOM?     

Peter Bro  Kenneth Reinecke Hansen  Ralf Andersson 《Journalism Practice》2016,10(8):1005-1018

In an attempt to produce more news stories, faster and on different platforms, the national Danish Broadcasting Corporation, DR, has introduced a new workflow. This new workflow is based on principles and practices known internally as “the news engine,” and it has brought with it changes in regards to both the news products, the news processes and the individual news producers. This article is based on newsroom observations, interviews with employees and content analyses, and it shows how the practice of journalism at DR News has been altered in several ways after the implementation of the news engine. The changes in DR News have become the inspiration for other television stations, and the study concludes by discussing how this particular workflow affects the profession of journalism. Rather than a proletarianization of the profession, this study points to a polarization where some journalists experience a deskilling and a decrease in autonomy, while others experience an increase in autonomy as part of a process of reskilling and multiskilling.  相似文献   

Performing desires: The dilemma of aspirations and educational attainment   总被引：1，自引：0，他引：1  

Ralf St Clair  Amanda Benjamin 《British Educational Research Journal》2011,37(3):501-517

The authors critique the mechanistic notion of aspirations running through much research and policy‐making on educational and vocational outcomes. They present a performative model, with individuals drawing on limited social resources to express aspirations within constrained contexts. This argument is illustrated by discussion of the findings of large‐scale empirical investigation of the aspirations of 490 young people in three UK schools. Five themes from this analysis are presented and it is argued that these need to be explored in order to enrich and expand our understanding of young people's expression of aspirations.  相似文献   

MATHEMATICS EDUCATORS’ VIEWS ON THE ROLE OF MATHEMATICS LEARNING IN DEVELOPING DEDUCTIVE REASONING     

Michal Ayalon  Ruhama Even 《International Journal of Science and Mathematics Education》2010,8(6):1131-1154

This study examines the views of people involved in mathematics education regarding the commonly stated goal of using mathematics learning to develop deductive reasoning that is usable outside of mathematical contexts. The data source includes 21 individual semi-structured interviews. The findings of the study show that the interviewees ascribed different meanings to the above-stated goal. Moreover, none of them said that it is possible to develop formal logic-based reasoning useful outside of mathematics, but for different reasons. Three distinct views were identified: the intervention–argumentation view, the reservation–deductive view, and the spontaneity–systematic view. Each interviewee’s view was interrelated with the interviewee’s approach to deductive reasoning and its nature in mathematics and outside it.  相似文献   

Why finding entities in Wikipedia is difficult,sometimes     

Gianluca Demartini  Claudiu S. Firan  Tereza Iofciu  Ralf Krestel  Wolfgang Nejdl 《Information Retrieval》2010,13(5):534-567

Entity Retrieval (ER)—in comparison to classical search—aims at finding individual entities instead of relevant documents. Finding a list of entities requires therefore techniques different to classical search engines. In this paper, we present a model to describe entities more formally and how an ER system can be build on top of it. We compare different approaches designed for finding entities in Wikipedia and report on results using standard test collections. An analysis of entity-centric queries reveals different aspects and problems related to ER and shows limitations of current systems performing ER with Wikipedia. It also indicates which approaches are suitable for which kinds of queries.  相似文献   

Auf geht’s!     

Prof. Dr. Ralf Brand  Prof. Dr. Claudia Voelcker-Rehage 《Sportwissenschaft》2012,42(2):80-82

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Editorial     

Prof. Dr. Ralf Brand  Claudia Voelcker-Rehage 《Sportwissenschaft》2012,42(4):227-227

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German Journal of Exercise and Sport Research     

Ralf Brand  Claudia Voelcker-Rehage 《Sportwissenschaft》2017,47(1):1-1

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The Development of Teacher Leaders and Inservice Teacher Educators   总被引：1，自引：1，他引：0  

Ruhama Even 《Journal of Mathematics Teacher Education》1999,2(1):3-24

This article discusses the development of teacher leaders and inservice teacher educators whose role it is to promote teacher learning about mathematics teaching in the process of changing school mathematics. The Manor Program for the development of teacher leaders and teacher educators is used as a vehicle for addressing this issue. The article focuses on aspects of curriculum design, discusses the theoretical rationale for the learning opportunities provided by the program, and considers several problematic aspects encountered.  相似文献   

Entwicklungsförderung im außerschulischen Kinder- und Jugendsport     

Ralf Sygusch  Christian Herrmann 《Sportwissenschaft》2009,39(3):210-222

Extracurricular sport is coupled with many socialization and education potentials for developmental promotion of children and adolescents. The promotion concept “Psychosocial resources in sports” (Sygusch 2007) provides the starting point for the development of capabilities to react and perform in sports as well as for general personality development through sport. This incentive concept is oriented towards training and competitive routine as well as on concrete demands from types of sport. Among others it justifies the methodical measures for promotion of selected resources (e. g. self-concept, cooperative ability). Within the framework of the accompanying study PRimus (psychosocial resources in youth sports) an evaluation of the execution of the programme was realized. Among others it was investigated whether the incentive concept can be implemented in organized child and youth sports. The results indicate that the incentive concept “pedagogically arranged extracurricular youth sports” is implemented by voluntary youth trainers in most instances and is estimated by trainers to be feasible.  相似文献   

Semantic Similarity Search on Semistructured Data with the XXL Search Engine     

Ralf?SchenkelEmail author  Anja?Theobald  Gerhard?Weikum 《Information Retrieval》2005,8(4):521-545

Query languages for XML such as XPath or XQuery support Boolean retrieval: a query result is a (possibly restructured) subset of XML elements or entire documents that satisfy the search conditions of the query. This search paradigm works for highly schematic XML data collections such as electronic catalogs. However, for searching information in open environments such as the Web or intranets of large corporations, ranked retrieval is more appropriate: a query result is a ranked list of XML elements in descending order of (estimated) relevance. Web search engines, which are based on the ranked retrieval paradigm, do, however, not consider the additional information and rich annotations provided by the structure of XML documents and their element names.This article presents the XXL search engine that supports relevance ranking on XML data. XXL is particularly geared for path queries with wildcards that can span multiple XML collections and contain both exact-match as well as semantic-similarity search conditions. In addition, ontological information and suitable index structures are used to improve the search efficiency and effectiveness. XXL is fully implemented as a suite of Java classes and servlets. Experiments in the context of the INEX benchmark demonstrate the efficiency of the XXL search engine and underline its effectiveness for ranked retrieval.  相似文献