Vom Hochschulseminar zum interdisziplinären E-Lehrverbund

Die Nutzung von Formen des E-Learning an Hochschulen muss im Zusammenhang mit den traditionellen Lehrformen bewertet werden. Wir schlagen vor, dass der Gebrauch von digitalen Medien und Kommunikationswerkzeugen im akademischen Unterrichtsbereich nicht unabhängig von der komplexen Lernstruktur des klassischen Seminars betrachtet wird. Zuerst verlangt dies eine Analyse des gemeinschaftlichen Aufbauprozesses von Wissen. Nur vor diesem Hintergrund kann dann das didaktische Potential der entsprechenden medientechnischen Gestaltungen bewertet werden. Mit Erfahrungen aus dem bundesweiten Lehrverbund RION sollen Möglichkeiten, Probleme und Vorzüge eines didaktischen Designs, das auf Zusammenarbeit fokussiert, veranschaulicht werden

Strokovne kompetence bodocih uciteljev za implementacijo prepoznavanja vrst v soli - studija primera iz Nemcije

This study investigates how well prepared student teachers are to implement species identification in school. Data were collected with the help of a questionnaire and a PowerPoint presentation in which local plant and animal species were presented. Participants (n = 357) correctly identified, on average, 23% of the plants and 44% of the animals. They identified plants mainly by flower characteristics and leaves, and animals mainly by shape and colour. Family and school were key sources of participants’ knowledge of species. The self-estimated competence of participants to identify species was positively correlated with their taxonomic knowledge and the amount of time they had spent on species identification during their own schooldays. The number of correctly identified plant and animal species increased with interest in identifying species and participation in species identification courses. Participants considered learner-centred education and experience-based learning, and the use of living organisms to be most important when identifying species in school. (DIPF/Orig.

Educational Standards for Economic Education at All Types of General-education Schools in Germany

economic education, educational standards, general-education schools, germany, competences, competence model

Oekonomische Bildung an allgemein bildenden Schulen - Bildungsstandards Standards fuer die Lehrerbildung

Bildungsstandards, Standards, oekonomische Bildung, allgemein bildendes Schulwesen, abschlussbezogen, Kompetenzmodell, Aufgabenbeispiele,

The Association between Vitamin D Receptor Expression and Prolonged Overall Survival in Breast Cancer.

Summary In this study, we analyzed vitamin D receptor (VDR) expression and survival in a breast cancer patient cohort of 82 breast cancer patients. Immunohistochemical analysis was possible in 91.5% of the patients (75/82). Staining was evaluated using the semi-quantitative assay according to Remmele and Stegner (immunoreactivity score [IRS]). IRS 0–1 was negative/very low, IRS 2–4 was moderate to high, and IRS 6–12 was high. Statistical analysis was performed by Spearman’s correlation test (p<0.05 significant). Overall survival was analyzed using Kaplan-Meier estimations. Only 6 patients had a negative IRS. Moderate IRS values were present in 20 patients. Most of the patients had a high IRS (49). For survival analysis, data were dichotomized (IRS 0–4: negative to moderate and IRS 6–12: high VDR expression). In univariate analysis, VDR expression showed significant differences in progression-free survival (PFS) and overall survival (OS). Patients with high IRS scores showed significantly better PFS and OS than patients with moderate/negative IRS scores for VDR expression. Tumor size was significantly correlated to PFS. When analyzed separately, the three different IRS groups showed significant differences in VDR expression. The present data suggest that VDR expression in breast cancer tissue may be of clinical significance, and the results provide evidence that VDR may be a factor with prognostic relevance. (J Histochem Cytochem 60:121–129, 2012). Keywords: breast cancer, vitamin D receptor, immunohistochemistry, prognosi

Electron microscopic and optical investigations of the indium distribution GaAs capped InxGa1-xAs islands

Results from a structural and optical analysis of buried InxGa1-xAs islands carried out after the process of GaAs overgrowth are presented. It is found that during the growth process, the indium concentration profile changes and the thickness of the wetting layer emanating from a Stranski-Krastanow growth mode grows significantly. Quantum dots are formed due to strong gradients in the indium concentration, which is demonstrated by photoluminescence and excitation spectroscopy of the buried InxGa1-xAs islands. (C) 1997 American Institute of Physics

Do student teachers’ wildlife value orientations impact how they judge management actions of carnivore species from different habitat status groups?

Lethal management of carnivore species in Germany differs according to the species habitat status (i.e., for new arrivals, long-established, or re-colonizing species). Management actions are not always accepted by the public. Since prospective teachers are future multipliers of public acceptance of lethal management, and teaching is influenced by ones’ value orientations, we investigated student teachers’ (N = 95) decisions on lethal management of carnivore species of different habitat status groups in relation to their wildlife value orientations (WVOs). Our results show that student teachers’ WVOs are more strongly associated with certain management actions for new arrivals and re-colonizing species than for long-established species. In those cases, their WVOs are more likely to affect teaching of decision-making in the context of management actions. Thus, teacher education should support student teachers in reflecting their value orientations for teaching local biodiversity protection

Monitoring of the primary drying of a lyophilization process in vials

An innovative and modular system (LyoMonitor) for monitoring the primary drying of a lyophilization process in vials is illustrated: it integrates some commercial devices (pressure gauges, moisture sensor and mass spectrometer), an innovative balance and a manometric temperature measurement system based on an improved algorithm (DPE) to estimate sublimating interface temperature and position, product temperature profile, heat and mass transfer coefficients. A soft-sensor using a multipoint wireless thermometer can also estimate the previous parameters in a large number of vials. The performances of the previous devices for the determination of the end of the primary drying are compared. Finally, all these sensors can be used for control purposes and for the optimization of the process recipe; the use of DPE in a control loop will be shown as an exampl