Unterricht mit digitalen Medien — zwischen Innovation und Tradition?

Konzepte zum Einsatz von digitalen Medien verdeutlichen deren Potenziale hinsichtlich einer Unterstützung des problemorientierten, selbstbestimmten und kooperativen Lehrens und Lernens. Offen ist aber, ob Lehrerinnen und Lehrer dieses Potenzial auch wirklich nutzen. M?glicherweise werden die neuen Medien lediglich in überlieferte Handlungsmuster integriert. Ziel des Forschungsprojekts, über das hier berichtet wird, ist es, einen Beitrag zur Entwicklung einer Theorie zum Lehrerhandeln im Medienzusammenhang zu leisten. Dabei wurden (1) Handlungsmuster von Lehrpersonen beim Einsatz neuer Medien im Unterricht identifiziert und (2) Hypothesen über m?gliche Zusammenh?nge von Handlungsmuster, Medien-Expertisegrad und Fachzugeh?rigkeit generiert. — Es wurden Videoaufnahmen von 20 Unterrichtsstunden mithilfe eines niedrig-inferenten Kategoriensystems analysiert und hinsichtlich zugrundeliegender Grundmuster clusteranalytisch ausgewertet. Die Ergebnisse zeigen, dass auf einer zugrunde gelegten Skala mit den Polen „instruktional“ und „konstruktivistisch“ unterschiedliche Muster von Lehrerhandeln beim Einsatz digitaler Medien im Unterricht identifiziert werden k?nnen, die sich als traditionell-lehrerzentriert bzw. als innovativ-schülerorientiert beschreiben lassen.     

Context-related problems and university students’ dropout intentions—the buffering effect of personal best goals

This study investigates the effects of contextual and motivational factors as well as, crucially, their interaction in predicting university students’ dropout intentions. We focus on context-related problems in students’ degree program as contextual factors and students’ personal best goals (PB goals) as motivational factors. The sample of this study comprised 432 university students (74.3% female) enrolled in master’s degree programs at Austrian universities. Data was analyzed by means of structural equation modeling and latent moderated structural equation modeling. The results indicated that PB goals were negatively associated with dropout intentions, while context-related problems were positively associated with dropout intentions. In addition, the context-related problems × PB goals interaction effect proved significant and negatively predicted dropout intentions. By showing that the positive relation between context-related problems and dropout intentions can be reversed by increasing PB goals, we provide empirical evidence of the buffering effect of PB goals in the face of context-related problems.

     

Effects of short-term video-based interventions and instructions on teachers’ feedback skills to support students’ self-regulated learning

European Journal of Psychology of Education - It was investigated whether teachers’ feedback skills to support students’ self-regulated learning (SRL) can be improved by short-term...     

Preschool and primary school influences on the development of children's early numeracy skills between the ages of 3 and 7 years in Germany

Few studies have investigated how preschool and primary school interact to influence children's cognitive development. The present investigation explores German children's numeracy skills between age 3 (1st year of preschool) and age 7 (1st year of primary school). We first identified the influence of preschool experience on development while controlling for child factors, family background, and the quality of the home learning environment (HLE). We then considered how the instructional quality of primary schools influences numeracy. We finally analysed how preschool and primary school interact. We sampled 547 children who attended 97 German preschools. Latent growth curve analyses identified child and family factors related to age 3 numeracy and development to age 7: gender, migration background, socioeconomic status (SES), mother education, HLE. The effects of preschool on numeracy development persist until age 7 with notable effects from process quality. Strengthened efforts are needed to ensure high quality preschool education in Germany.     

Dopingkontrollen in Deutschland

The aim of the present study was to gather information from athletes and doping control officials about their satisfaction and acceptance concerning the accomplishment of the doping control system (DCS) in Germany. 761 high elite athletes and 101 doping control officers took part in a written survey. Special attention was given to the subjective estimation of knowledge about the DCS as well as to their experiences during doping controls (DC) and on the whereabouts system.Three quarters of the responding athletes stated to have control experience; many of them were controlled several times a year. The majority of athletes confirmed to be familiar with the sampling procedure. But every second mentioned deficits regarding their rights during the collection or the functioning of the whereabouts system. Athletes and control officials evaluated their communication and coordination among each other mainly positive. By the majority of athletes, control officials’ attitude was judged to be friendly and open minded and their behavior neutral and discreet. A strong and internationally comparable accomplishment of the DCS was demanded especially from athletes belonging to higher testing pools. Doping control officials appreciated athletes’ generally high willingness to cooperate and, predominantly, felt well instructed for their duty.     

Safety and Efficacy of Mobility Interventions in Patients with Femoral Catheters in the ICU: A Prospective Observational Study

Introduction

There are limited data describing mobility interventions provided to patients with femoral catheters. The purpose of this study was to examine the incidence of femoral catheter related adverse effects during physical therapy (PT) sessions in a cardiovascular intensive care unit (ICU).

Methods

This was a prospective, observational study and included patients with at least one femoral catheter. Data were collected after each PT session.

Results

There were 77 subjects with a total of 92 femoral catheters (50 arterial, 15 central venous, and 27 dialysis) treated. A total of 210 separate PT sessions occurred with 630 mobility activities including sitting on side of bed, standing at the bedside, transfers to stretcher chair or regular chair, and walking. There were no catheter related mechanical or thrombotic complications during any of the PT sessions.

Conclusions

Physical therapy sessions, including standing and walking were feasible and safe in cardiovascular ICU patients with femoral catheters who met the criteria for mobility interventions. The results from this study support the hypothesis that early mobilization in patients with femoral catheters is important to minimize functional decline and provide evidence that the presence of femoral catheters alone should not be a reason to limit progressive mobility interventions.Key Words: physical therapy, ICU, early mobilization, femoral catheter     

Formale Konsistenzsicherung in informellen Software-Spezifikationen

Zusammenfassung. Die Spezifikation ist die Grundlage für den Erfolg eines Software-Projekts. Der Praktiker konzentriert sich hier i.d.R. auf die größte Herausforderung: die vollständige und inhaltlich korrekte Erfassung aller Anforderungen an das zu erstellende Software-System. Dass Spezifikationen für große Systeme aus vielen Dokumenten verschiedener Ausprägung in Form und Inhalt bestehen, tritt dabei meist in den Hintergrund. Ihre Konsistenz wird meist mit hohem manuellem Aufwand sichergestellt. Der Erstellung formal korrekter und konsistenter Software-Spezifikationen widmen sich zahlreiche theoretische Arbeiten. In der Praxis sind sie jedoch meist nicht mit der gewohnten Arbeitsweise vereinbar. In diesem Artikel stellen wir einen Mittelweg vor: Wir nutzen die Spezifikationsbausteine von sd&m für die Spezifikation, die als Ergebnisse Dokumente in natürlicher Sprache sowie semi-formale Darstellungen umfasst. Für Spezifikationen, die nach diesen Bausteinen erstellt wurden, definieren wir Konsistenz durch formale zeitbehaftete Konsistenzregeln. Ein von uns entwickeltes Auswertungswerkzeug ermittelt Inkonsistenzen präzise. Unterstützt von einem solchen Werkzeug kann sich der Software-Ingenieur wieder ganz auf das Hauptanliegen der Spezifikation konzentrieren: ihre inhaltliche Korrektheit und Vollständigkeit.Eingegangen am 19. August 2003, Angenommen am 10. März 2004, CR Subject Classification: D.2.1, D.3.1, H.3.1, I.7.1