Werner Stein

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The femur-tibia (FT) joint of insects is governed by a neuronal network that controls activity in tibial motoneurons by processing sensory information about tibial position and movement provided by afferents of the femoral chordotonal organ (fCO). We show that central arborizations of fCO afferents receive presynaptic depolarizing synaptic inputs. With an(More)
The interaction of two feedback loops was investigated: one regulating cuticular stress in the stick insect's leg and the other controlling leg posture. Exclusive stimulation of either of the two relevant sense organs, the load-sensitive trochantero-femoral campaniform sensilla (CS) or the position-/movement-sensitive ventral coxal hairplate (cxHPv),(More)
In the leg motor system of insects, several proprioceptive sense organs provide the CNS with information about posture and movement. Within one sensory organ, presynaptic inhibition shapes the inflow of sensory information to the CNS. We show here that also different proprioceptive sense organs can exert a presynaptic inhibition on each other. The afferents(More)
c Deutsches Forschungszentrum für K ¨ unstliche Intelligenz 1996 This work may not be copied or reproduced in whole of part for any commercial purpose. Permission to copy in whole or part without payment of fee is granted for nonprofit educational and research purposes provided that all such whole or partial copies include the following: a notice that such(More)
We consider monitoring station data consisting of meteorological climate measurements (e.g. temperature) recorded repeatedly over time, always at the same locations. The locations of the monitoring stations form an irregular lattice, making it diicult to use space-time models which require the speciication of a hierarchical spatial neighborhood system. Our(More)
s: We have studied the structural damage of W-Re targets produced by electrons with energies of several GeV and under different conditions of total number of electrons, beam shape and target depth. We report the differences in damage levels for different designs considered in the construction of the next generation of linear accelerators, and discuss the(More)
In the positron source of the Stanford Linear Collider (SLC), the electron beam collides with a tungsten-rhenium target. As the beam passes into the material, thermal energy is created that heats the material to several hundred degrees centigrade on a time scale of nanoseconds. The heating of the material results in thermal stresses that may be large enough(More)
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