Who is missing from higher education in New Zealand?     

Rob Strathdee  Ralf Engler 《British Educational Research Journal》2012,38(3):497-514

There is disagreement in the literature regarding the influence of social and cultural factors on the propensity for young people to undertake higher education. This study draws upon a national data set of over 45,000 young people to assesses their propensity to progress to bachelor level study, while controlling for their ethnic backgrounds, their socio‐economic status (as measured by the decile of the last secondary school they attended), their gender, and their school achievement. The results are discussed in light of recent policy developments designed to ensure that access to bachelor‐level study is not closed to under‐represented groups.  相似文献   

Unraveling the impact of the Big Five personality traits on academic performance: The moderating and mediating effects of self-efficacy and academic motivation     

Tim De Feyter  Ralf Caers  Claudia Vigna  Dries Berings 《Learning and individual differences》2012,22(4):439-448

The main purpose of this study is to unravel the impact of the Big Five personality factors on academic performance. We propose a theoretical model with conditional indirect effects of the Big Five personality factors on academic performance through their impact upon academic motivation. To clarify the mixed results of previous studies concerning the impact of neuroticism, we suggest a moderating role of self-efficacy. Hierarchical, moderated mediation and mediated moderation regression analyses were performed on longitudinal data collected from 375 students of a University college in Belgium. The findings revealed a positive indirect effect of neuroticism on academic performance at higher levels of self-efficacy, complemented by a positive direct effect of neuroticism at lower levels of self-efficacy. Finally, this study showed that conscientiousness positively affected academic performance indirectly through academic motivation, but also that it is a condition for the indirect impact of extraversion, neuroticism, and conscientiousness.  相似文献   

Effective civic education: an educational effectiveness model for explaining students' civic knowledge     

Maria Magdalena Isac  Ralf Maslowski  Greetje van der Werf 《School Effectiveness & School Improvement》2013,24(3):313-333

In this study, a comprehensive educational effectiveness model is tested in relation to student's civic knowledge. Multilevel analysis was applied on the dataset of the IEA Civic Education Study (CIVED; Torney-Purta, Lehmann, Oswald, & Schulz, 2001 Torney-Purta, J., Lehmann, R., Oswald, H. and Schulz, W. 2001. Citizenship and education in twenty-eight countries: Civic knowledge and engagement at age fourteen, Amsterdam, The Netherlands: IEA.  [Google Scholar]), which was conducted among junior secondary-school students (age 14), their schools, and their teachers. In total, 28 countries, 4,136 classrooms, and 93,565 students were included in the analysis. The results indicated that the influences on students' civic knowledge are multilevel. Students' civic knowledge and skills were partially explained by individual characteristics, by factors related to quality and opportunities for civic learning offered by classrooms and class composition, and by factors at the national context level. We conclude that most effectiveness factors are relevant for the field of civic and citizenship education and that schooling and educational policy matter for students' success in this field.  相似文献   

Entwurf und Implementierung eines SQL-normkonformen Datenbankkatalogs für ein relationales Datenbankmanagementsystem     

Steffen Skatulla  Ralf Schaarschmidt  Peter Pistor  Klaus Küspert 《Informatik - Forschung und Entwicklung》2000,22(2):161-170

Bei relationalen Datenbanksystemen haben sich de-jure-Normen für SQL stetig weiterentwickelt; mit diesen Normen wird es einfacher, portable Datenbankanwendungen zu entwickeln. Die SQL-Norm ruht auf zwei S?ulen, zum einen auf der Datenbanksprache SQL, zum anderen auf einer Vorgabe eines Datenbankkatalogs, welcher die gespeicherten Daten beschreiben soll. Im vorliegenden Beitrag wird derjenige Teilbereich des Datenbankkatalogs der aktuellen SQL99-Norm dargestellt, der bereits in der SQL92-Norm (ISO/IEC 9075:1992 bzw. DIN 66315) definiert ist und die klassischen (nicht objektrelationalen) Elemente einer relationalen Datenbank beschreibt. In dieser Darstellung nimmt der zweischichtige Spezifikationsansatz (Informationsschema, Definitionsschema) einigen Raum ein; mit seiner Hilfe weist SQL einen eleganten Weg, auf dem existierende Datenbanksysteme normkonforme Datenbankkataloge bereitstellen k?nnen. Anhand des Datenbankmanagementsystems DB2 wird anschlie?end untersucht, wie ein normkonformer Datenbankkatalog (das sogenannte Informationsschema) „oberhalb” des verfügbaren DB2-Katalogs realisiert werden kann, d. h. wie die vom Informationsschema geforderten Sichten auf DB2-Katalogtabellen abgebildet werden k?nnen. Auf generelle Schwierigkeiten und M?glichkeiten einer solchen Abbildung (ein- oder zweistufig) wird ebenso eingegangen wie auf Probleme, die sich speziell bei DB2 ergeben. In einer prototypischen Realisierung konnte das Informationsschema bis auf wenige Einschr?nkungen komplett umgesetzt werden. Damit wurde die Machbarkeit normkonformer Kataloge nachgewiesen. In heute verfügbaren DBMS-Produkten sind Datenbankkataloge in dieser konsequent normkonformen Gestalt leider immer noch nicht anzutreffen.  相似文献   

Transformation of the national higher education and research systems of Central Europe     

Ralf Dahrendorf  Stefan Amsterdamski 《Minerva》1993,31(4):504-522

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Sustainable Museum Storage Buildings for Long-term Preservation     

Kristina Holl  Ralf Kilian  Lars Klemm  Kristin Lengsfeld  Stefan Bichlmair  Martin Krus 《文物保护研究》2018,63(5):366-368

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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   

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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