29 research outputs found
A multi-scale hierarchical framework for developing understanding of river behaviour to support river management
The work leading to this paper was funded through the European Union’s FP7 programme under Grant Agreement No. 282656 (REFORM). The framework methodology was developed within the context of Deliverable D2.1 of the REFORM programme, and all partners who contributed to the development of the four parts of this deliverable are included in the author list of this paper. More details on the REFORM framework can be obtained from part 1 of Deliverable D2.1 (Gurnell et al. 2014), which is downloadable from http://www.reformrivers.eu/results/deliverables
Anforderungskatalog Indoor - Kart - Bahnen
Available from TIB Hannover: RR 7828(39) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEThueringer Ministerium fuer Landwirtschaft, Naturschutz und Umwelt, Erfurt (Germany)DEGerman
Energieleitfaden fuer staedtebauliche Planung und Wettbewerbe. Stufe 1
With 36 refs., 21 tabs., 70 figs.Copy held by UB/TIB Hannover / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman
Planungs-Checkheft fuer Staedtebau und Wettbewerbe
SIGLEAvailable from TIB Hannover: F93B651+a / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman
Challenges and opportunities for integrating lake ecosystem modelling approaches
A large number and wide variety of lake ecosystem models have been developed and published during the past four decades. We identify two challenges for making further progress in this field. One such challenge is to avoid developing more models largely following the concept of others (‘reinventing the wheel’). The other challenge is to avoid focusing on only one type of model, while ignoring new and diverse approaches that have become available (‘having tunnel vision’). In this paper, we aim at improving the awareness of existing models and knowledge of concurrent approaches in lake ecosystem modelling, without covering all possible model tools and avenues. First, we present a broad variety of modelling approaches. To illustrate these approaches, we give brief descriptions of rather arbitrarily selected sets of specific models. We deal with static models (steady state and regression models), complex dynamic models (CAEDYM, CE-QUAL-W2, Delft 3D-ECO, LakeMab, LakeWeb, MyLake, PCLake, PROTECH, SALMO), structurally dynamic models and minimal dynamic models. We also discuss a group of approaches that could all be classified as individual based: super-individual models (Piscator, Charisma), physiologically structured models, stage-structured models and trait-based models. We briefly mention genetic algorithms, neural networks, Kalman filters and fuzzy logic. Thereafter, we zoom in, as an in-depth example, on the multi-decadal development and application of the lake ecosystem model PCLake and related models (PCLake Metamodel, Lake Shira Model, IPH-TRIM3D-PCLake). In the discussion, we argue that while the historical development of each approach and model is understandable given its ‘leading principle’, there are many opportunities for combining approaches. We take the point of view that a single ‘right’ approach does not exist and should not be strived for. Instead, multiple modelling approaches, applied concurrently to a given problem, can help develop an integrative view on the functioning of lake ecosystems. We end with a set of specific recommendations that may be of help in the further development of lake ecosystem model
Studie zum Stand aktueller Bildungsdiskussionen im europaeischen und aussereuropaeischen Rahmen
Gliederung: 1. Allgemeiner Ueberblick ueber Schwerpunkte der Bildungsdiskussion in Europa; 2. Bildungsdiskussionen und Bildungsreformen in ausgewaehlten europaeischen Staaten (Niederlande, Daenemark, Oesterreich, Entwicklungen in England, Norwegen und Schottland); 3. Aussereuropaeische Bildungsdiskussionen und -entwicklungen (Aussereuropaeische Bildungsentwicklungen im Ueberblick, Australien, Japan, USA); 4. Vorschlaege fuer die vertiefte Darstellung internationaler Diskussionen und Entwicklungen; 5. Literaturverzeichnis; 6. Auflistung von 'best-practice'-BeispielenSIGLEAvailable from Arbeitsstab Forum Bildung in der Geschaeftsstelle der Bund-Laender-Kommission fuer Bildungsplanung und Forschungsfoerderung, Bonn (DE) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman
Morphological diversity of integumentary traits in fowl domestication: Insights from disparity analysis and embryonic development
The domestication of the fowl resulted in a large diversity of integumental structures in chicken breeds. Several integumental traits have been investigated from a developmental genetics perspective. However, their distribution among breeds and their developmental morphology remain unexplored. We constructed a discrete trait-breed matrix and conducted a disparity analysis to investigate the variation of these structures in chicken breeds; 20 integumental traits of 72 chicken breeds and the red junglefowl were assessed. The analyses resulted in slight groupings of breed types comparable to standard breed classification based on artificial selection and chicken type use. The red junglefowl groups together with bantams and European breeds. We provide new data on the red junglefowl and four chicken breeds, demonstrating where and when variation arises during embryonic development. We document variation in developmental timing of the egg tooth and feather formation, as well as other kinds of developmental patterning as in the anlagen of different type of combs. Changes in epithelial-mesenchymal signaling interactions may drive the highly diverse integument in chickens. Experimental and comparative work has revealed that the cranial neural crest mesenchyme mediates its interactions with the overlying epithelium and is the likely source of patterning that generates diversity in integumental structures