The graphics program cnom2.0. User manual

Available from TIB Hannover: RR 1606(95-32) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman

Magic of Muqarnas - a video about Muqarnas in the Islamic world

SIGLEAvailable from TIB Hannover: RR 1606(2002,39) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman

Standing wave patterns in models for microbial growth

A kinetic model for microbial growth dynamics taking into account that cells can exist in two phases, fast growing and slow growing, is extended to spatially nonuniform conditions. The resulting reaction-diffusion system with unequal diffusion coefficients exhibits standing wave patterns as can be predicted via conditions concerning the kinetic equations. These solutions come from a Hopf bifurcation of Turing type. In the whole range of parameters there are no time-periodic solutions without diffusion. (orig.)Available from TIB Hannover: RR 1606(97-06) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman

Teenagers Expand Their Conceptions of Climate Change Adaptation Through Research-Education Cooperation

Unlike previous generations, today’s youth is directly affected by global anthropogenic climate change (CC), and its increasing consequences throughout their lifetimes. However, both the educational strategies to prepare them for CC adaptation, and their conceptions of CC adaptation, remain insufficiently understood. This study sets out to investigate the CC adaptation conceptions of 120 students from four high-schools in Austria and Italy. The influence of a year-long research-education cooperation between students and 28 CC adaptation experts is examined. In the educational design, the focus lies on moderate-constructivist theories, and the transdisciplinary dialogue between students and experts. A mixed-methodologies approach is applied, which combines content analysis to study students’ conceptions of CC adaptation and test statistics (chi-square and t-test) to assess the impact of the educational intervention. The results show that students’ conceptions differ in degree of sophistication, and also include misconceptions. Some students relate adaptation to limiting disadvantages due to CC, others confuse adaptation with mitigation or environmental protection. After the educational intervention, most students have expanded their CC adaptation conceptions and overcome misconceptions, and their performance to differentiate between adaptation and mitigation increased significantly. This paper will be useful to researchers and teachers interested in utilizing education as a means to adapting to CC.</p

Vinculin, cadherin mechanotransduction and homeostasis of cell-cell junctions

Cell adhesion junctions characteristically arise from the cooperative integration of adhesion receptors, cell signalling pathways and the cytoskeleton. This is exemplified by cell-cell interactions mediated by classical cadherin adhesion receptors. These junctions are sites where cadherin adhesion systems functionally couple to the dynamic actin cytoskeleton, a process that entails physical interactions with many actin regulators and regulation by cell signalling pathways. Such integration implies a potential role for molecules that may stand at the interface between adhesion, signalling and the cytoskeleton. One such candidate is the cortical scaffolding protein, vinculin, which is a component of both cell-cell and cell-matrix adhesions. While its contribution to integrin-based adhesions has been extensively studied, less is known about how vinculin contributes to cell-cell adhesions. A major recent advance has come with the realisation that cadherin adhesions are active mechanical structures, where cadherin serves as part of a mechanotransduction pathway by which junctions sense and elicit cellular responses to mechanical stimuli. Vinculin has emerged as an important element in cadherin mechanotransduction, a perspective that illuminates its role in cell-cell interactions. We now review its role as a cortical scaffold and its role in cadherin mechanotransduction