Thorsten Schindler

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To plan a robotic task involving intermittent contact, such as an assembly task, it is helpful to be able to simulate the task accurately and efficiently. In the past ten years, the prox formulation of the equations of motion has arisen as a competitive alternative to the well-known linear and nonlinear complementarity problem (LCP and NCP) formulations. In(More)
BACKGROUND AND PURPOSE The purpose of this study was to determine the factors associated with burnout in physical therapists at rehabilitation hospitals. Burnout is a serious concern because it can lead to psychosomatic complaints, work-associated withdrawal behaviors, and a decreased quality of care. SUBJECTS Full-time, nonadministrative, nonsupervisory,(More)
The contribution deals with timestepping schemes for nonsmooth dynami-cal systems. Traditionally, these schemes are locally of integration order one, both in smooth and nonsmooth periods. This is inefficient for applications with infinite events but large smooth phases like circuit breakers, valve trains or slider-crank mechanisms. To improve the behavior(More)
The contribution deals with timestepping schemes for nonsmooth dynamical systems. Traditionally, these schemes are locally of integration order one, both in smooth and nonsmooth periods. This is inefficient for applications with few events like circuit breakers, valve trains or slider-crank mechanisms. To improve the behavior during smooth episodes, we(More)
The augmentative effects of isolated components of human dialyzable leukocyte lysates upon the proliferative response to antigen were investigated. Sequential Sephadex G-25 and Bio-Gel P-4 chromatography separated five distinct fractions which, 24 hr after injection into Keyhole limpet hemacyanin (KLH)-sensitive mice, either augmented or suppressed the in(More)
Muramyl dipeptide (MDP) and the butyl ester derivative, N-acetylmuramyl-L-alanyl-D-glutamine-alpha-n-butyl ester (MDP[Gln]OnBu), were shown to induce the in vitro proliferation of oil-induced guinea pig peritoneal exudate cells (PEC). Both agents induced 10-20 fold increases in tritiated thymidine incorporation in PEC cultures. The maximal effects occurred(More)