FReD: The floral reflectance spectra database

Floral reflectance measurements are of great value to researchers who need consider the real colour of flowers, for example in the context of how the flowers appear to their pollinators. We have thus developed the Floral Reflectance Database (FReD) to assist these researchers, gathering together floral reflectance data in a publicly available, searchable online database. The first version of the database is now available online at "http://www.reflectance.co.uk":http://www.reflectance.co.uk. We anticipate that this resource will be of interest to researchers working on flower colour and animal vision

Screened perturbation theory at four loops

We study the thermodynamics of massless phi-fourth theory using screened perturbation theory, which is a way to systematically reorganise the perturbative series. The free energy and pressure are calculated through four loops in a double expansion in powers of g^2 and m/T, where m is a thermal mass of order gT. The result is truncated at order g^7. We find that the convergence properties are significantly improved compared to the weak-coupling expansion.Comment: Talk given at Strong and Electroweak Matter 2008, Amsterdam, Aug. 25-29 2008. 4 pages, 1 figur

Gebäudetypisierung basierend auf UltraCamX Daten für die Bestimmung der Attraktivitätsmerkmale der Wohnstandorte

This thesis examines the possibilities of an automatized object-based image analysis (OBIA) to classify urban buildings by means of high resolution areal images taken by the UltraCam X system. It was analyzed whether without any flanking data from other sources valid building properties and structures including their heights can be extracted by these studies. For this purpose two target areas in Berlin were chosen, representing a high and typical variability of urban buildings. The discussion of the extracted results includes a detailed analysis of building areas and building heights. The building heights were related to the number of building floors and a classification of nine building classes of different heights was performed. One essential step for this process was the availability of a normalized digital surface model (nDSM). On the basis of this model it is possible to derive information about the object’s height. The high resolution of the areal date enabled to retrieve finer geometric structures, like balconies in a limited way. Special problems that occurred during in the framework of segmentation and classification are discussed and assessed in detail. An accuracy assessment reveals in very satisfactory results indicating the valuable extraction of geometric building parameters. Furthermore, it has been shown that important neighboring characteristics like vegetation and close distances to water bodies could be extracted. They include elevated, ground and Roof greening provinces. In the second part of this thesis an analysis of these parameters in respect to their evaluability for an attractiveness assessment have been investigated. In this case too, no reference data of residential location attractiveness were available and neither should been used for the analysis. Applicable attributes of attractiveness were derived only basing on an extensive literature research of generic relationships between measurable building properties and properties of their close environment. They include relations between building densities (amount of building development), volume of building development, homogeneity of top level building height structure and others. Within this Research area there are not many publications to refer on. Therefore, the automated object-based image analysis of areal images only to extract features of building attractiveness of urban residential locations is an innovative field of research and application. Thus, a particular value of this work is a successful review of general interrelations of the extracted building properties and of their close environment against the background of attractiveness parameters. Properties like building densities, volume and area of buildings, mean building heights within building cells have been investigated in one of the study areas in respect of their spatial variations. For this purpose the study area was divided into sub units of traffic cells enabling to analyze the fine structure of ccurring variations of the extracted properties. By simultaneous use of derived environmental features (vegetation, water) the character of attractiveness features and variations of them have been extracted an analyzed. These results were subjected to a critical review as well. This approach is promising for the notified implementation of the urban building’s attractiveness analysis, for the assessment of the attractiveness of urban residential locations, and for intermodal urban traffic concepts. The outlook of resulting future prospects shows that with inclusion of additional analysis variables further potentials for attractiveness studies can be opened. The value added by this method consists of both, the possibility of a contemporary large area data acquisition at high spatial resolution and the automated supply of the information required. Wherever these issues are the primary driver of application, this approach permits a highly valid basis for the analyses of urban residential locations, their attractiveness and their transport links

The Evolution of Cuspy Triaxial Galaxies Harboring Central Black Holes

We use numerical simulations to study the evolution of triaxial elliptical galaxies with central black holes. In contrast to earlier numerical studies which used galaxy models with central density ``cores,'' our galaxies have steep central cusps, like those observed in real ellipticals. As a black hole grows in these cuspy triaxial galaxies, the inner regions become rounder owing to chaos induced in the orbit families which populate the model. At larger radii, however, the models maintain their triaxiality, and orbital analyses show that centrophilic orbits there resist stochasticity over many dynamical times. While black hole induced evolution is strong in the inner regions of these galaxies, and reaches out beyond the nominal ``sphere of influence'' of a black hole, our simulations do not show evidence for a rapid {\it global} transformation of the host. The triaxiality of observed elliptical galaxies is therefore not inconsistent with the presence of supermassive black holes at their centers.Comment: 15 pages, 7 figures (1 color). Accepted for publication in Ap

Has “the ceiling” rendered the Readiness for Interprofessional Learning Scale (RIPLS) outdated?

publishedVersio

Interkulturelle Kompetenz in der Sächsischen Wirtschaft

Das Working Paper Nr. 1 basiert auf der Studie „Ergebnisse der Situationsanalyse“, welche von der Technischen Universität Dresden, Fakultät für Erziehungswissenschaften, Institut für Berufspädagogik, Professur für Didaktik des beruflichen Lernens (Prof. Dr. paed. habil. Hanno Hortsch, Dipl.-Berufspäd. Marcel Köhler, Lars Leidl M.A., M.Sc.) im Auftrag der Staatlichen Studienakademie Breitenbrunn durchgeführt wurde. Die vollständige Studie, die für den vorliegenden Bericht durch die Herausgeberin gekürzt und redaktionell weiterverarbeitet wurde, wird nicht als eigene Publikation der Öffentlichkeit zugänglich gemacht. Diese Studie und das Working Paper sind Bestandteil des Projektes „Zusatzqualifikation zur Förderung der interkulturellen Kompetenz von Studierenden der Berufsakademie Sachsen“, welches aus Mitteln des Europäischen Sozialfonds (ESF) und des Freistaates Sachsen gefördert wird.:1 Ziele und Inhalte der „Zusatzqualifikation Interkulturelle Kompetenz“ 2 Gegenstand und Methode der Situationsanalyse 3 Ergebnisse der Situationsanalyse 3.1 Vorhandene Unternehmensstrukturen 3.2 Stellenwert und Bedeutung von interkulturell qualifiziertem Personal 3.3 Anforderungen an interkulturell qualifiziertes akademisches Fachpersonal 3.4 Inhalte der Zusatzqualifikation Interkulturelle Kompetenz 3.5 Zielländer/-kulturen/-regionen in der Konzeption der Zusatzqualifikation 3.6 Didaktisch-methodische Empfehlungen für die Konzeption 3.7 Befragung der Studierenden des Studiengangs Industrie 4 Fazi