New Muli-disciplinary Data from the Neolithic in Serbia. The 2019 and 2021 Excavations at Svinjarička Čuka

The excavations at Svinjarička Čuka in the South Morava Valley in Serbia are presented with new primary data from the field and related material and scientific analyses. Newly recovered architectural remains from the classical Starčevo period revealed a variety of domestic features, so far belonging to an earlier and later occupation phase at the river terrace dating between 5700/5600 and 5500 BC. Details of the stratigraphy and certain materials are presented for selected domestic contexts, including one potential ‘Starčevo house’. Archaeological and scientific analyses are discussed and contextualised within the Neolithisation process in the chapters on new radiocarbon data and their Bayesian modelling, pottery studies, chipped stones and their raw material analyses, grinding kits, animal remains, archaeobotanical results and charcoal analysis. The later occupation at the site is presented with new results for the Middle and Late Bronze Age and the Early Iron Age, including domestic contexts, radiocarbon data and materials.Der Text bietet einen Überblick zu neuen Ergebnissen der Ausgrabungen und naturwissenschaftlichen Untersuchungen an der Fundstelle Svinjarička Čuka im südlichen Morava-Tal in Serbien. Kürzlich gefundene Architekturreste der klassischen Starčevo Kultur belegen eine Reihe unterschiedlicher Siedlungsbefunde, die sich bislang einer früheren und einer späteren Besiedlungsphase auf der Flussterrasse zuordnen lassen, die absolut zwischen 5700/5600 und 5500 calBC datiert werden kann. Die Stratigraphie und Aspekte des Fundmaterials ausgewählter Kontexte werden vorgestellt, darunter ein potentielles „Starčevo Haus“. Archäologische und naturwissenschaftliche Untersuchungen werden diskutiert und im Rahmen des Neolithisierungsprozesses kontextualisiert, mit Abschnitten zu neuen Radiokarbondatierungen und ihrer Bayesschen Modellierung, Keramikuntersuchungen, der geschlagenen Steinindustrie mit ihren Rohstoffquellen, Reibsteinen, den Faunenresten, den Ergebnissen von archäobotanischen und Holzkohleuntersuchungen. Die späteren Besiedlungsphasen des Fundplatzes werden mit neuen Ergebnissen zu Siedlungskontexten, Radiokarbondatierungen und Fundmaterial der mittleren und späten Bronzezeit und der frühen Eisenzeit vorgestellt

Beitrag zur Erforschung der Lebermoosflora Oberbayerns

Von M. Schinner

A Survey in Mathematics for Industry - An efficient method for the numerical simulation of magneto-mechanical sensors and actuators

The dynamic behaviour of magneto-mechanical sensors and actuators can be completely described by Maxwell's and Navier-Lamé's partial differential equations (PDEs) with appropriate coupling terms reflecting the interactions of these fields and with the corresponding initial, boundary and interface conditions. Neglecting the displacement currents, which can be done for the classes of problems considered in this paper, and introducing the vector potential for the magnetic field, we arrive at a system of degenerate parabolic PDEs for the vector potential coupled with the hyperbolic PDEs for the displacements.Usually the computational domain, the finite element discretization, the time integration, and the solver are different for the magnetic and mechanical parts. For instance, the vector potential is approximated by edge elements whereas the finite element discretization of the displacements is based on nodal elements on different meshes. The most time consuming modules in the solution procedure are the solvers for both, the magnetical and the mechanical finite element equations arising at each step of the time integration procedure. We use geometrical multigrid solvers which are different for both parts. These multigrid solvers enable us to solve quite efficiently not only academic test problems, but also transient 3D technical magneto-mechanical systems of high complexity such as solenoid valves and electro-magnetic-acoustic transducers. The results of the computer simulation are in very good agreement with the experimental data

Combined Optical and Electronic Readout For Event Reconstruction in a GEM-based TPC

Optically read out time projection chambers (TPCs) based on gaseous electron multipliers (GEMs) combine 3-D event reconstruction capabilities with high spatial resolution and charge amplification factors. The approach of reconstructing particle tracks from 2-D projections obtained with imaging sensors and depth information from photomultiplier tubes is limited to specific cases such as straight particle trajectories. A combination of optical and electronic readout realized by a semitransparent anode placed between a triple-GEM stack and a camera in an optically read out TPC has been realized and used to reconstruct more complex particle tracks. High spatial resolution 2-D projections combined with a low number of charge readout channels enable accurate 3-D event topology reconstruction. Straight alpha tracks as well as more complex cosmic events have been reconstructed with the presented readout concept. Relative depth information from electronically read out charge signals has been combined with drift time information between primary and secondary scintillation pulses to absolute alpha track reconstructions.Peer reviewe

New chromosome counts and other karyological data for members of the Stemonaceae

Chromosome numbers and other karyological data for ten Stemona species and for Stichoneuron caudatum are presented, including first reports for Stemona burkillii, S. involuta, S. mairei and S. phyllantha.All investigated taxa of Stemona exhibit n = x = 7 (2n = 14) chromosomes. For Stichoneuron caudatum an earlier count revealing 2n = 18 is confirmed. The observed chromosome lengths range between 0.9 and 6.9 μm (largest chromosome in Stichoneuron caudatum).Additionally, the genome sizes of seven Stemona species and of Stichoneuron caudatum are reported. The obtained results are compared with literature data and discussed