Gerald Löffler

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Pointlike object features such as line-endings, have a privileged position in the computation of the veridical direction of object motion. Experiments confirm that the human visual system relies heavily on such features if they are present. It has been proposed that units such as end-stopped cells might be necessary for the computation of feature motion(More)
Dehydroepiandrosterone (DHEA) is a ubiquitous adrenal hormone with immunomodulatory effects such as inhibition of the production of monokines. Whether DHEA itself or the downstream steroids are the immunomodulatory effector hormones in target cells is not known. In this study, we investigated the conversion of DHEA to downstream steroid hormones in target(More)
Aromatization of circulating androgens in adipose tissue is a major source of estrogens in postmenopausal women. As part of our efforts to elucidate the mechanism of aromatase induction in human breast adipose tissue, we tested the effects of the antiglucocorticoid and antiprogestin, RU486, on aromatase induction in primary cultures of adipose tissue(More)
The " normal " product of a TopoSys DEM is a raster based DSM / DTM. A TopoSys DSM / DTM is not a standard product. It is processed for the application of the customer. Because of the high data rate of the TopoSys laserscanner the process of the selection of the measured points to set the elevation values to the defined raster cell is very different. This(More)
1 Motivation Our research in theoretical biophysics [6] recently required us to solve a variant of the Poisson equation, which is a linear elliptic partial differential equation (PDE) in 3D. Ultimately, we want to make our method available as a applet, so we decided to implement a PDE solver in Java. Another reason for using Java was its promise of easy,(More)
The essential goal of this work is the unified treatment of quantum mechanical and classical degrees of freedom in biomolecular simulation on all three levels: Theory, algorithms and implementation. In theory this is done within the framework of the Lagrangian model, which handles electronic coordinates and Cartesian nuclear coordinates in a consistent way.(More)
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