The spherical end-knobs of the tentacles of capitate hydropolyps are an evolutionarily early paradigm of a chemo- and mechanosensory epithelium composed of four types of sensory cells and one type of chemo-mechanosensitive nematocytes (stinging cells), all separated by supporting cells. The epithelium discriminates sites and compositions of stimuli and… (More)
In capitate hydropolyps, the spherical end-knobs of the short tentacles present an exceptional concentration of sensory functions in one of the evolutionarily oldest nervous systems. The tentacular spheres are the basis of sensation and discrimination of objects and of capturing of prey-objects by the discharge of nematocytes (stinging cells). Recent… (More)
BACKGROUND Transforming growth factor-betas (TGF-bs) are pleiotropic growth factors exerting neurotrophic functions upon various neuronal populations of the central nervous system. In contrast, the role of TGF-b isoforms in the enteric nervous system (ENS) is largely unknown. We therefore analyzed the gene expression pattern of the TGF-b system in the human… (More)
Bluetooth ist eine universelle Funkschnittstelle, die das 2,4-GHz-ISM-Band nutzt, um portable Geräte wie Mobiltelefone, PDAs, Notebooks etc. ohne Kabel miteinander zu verbinden.
We derive and discuss formulas for the density and the hazard rate of the empty space function of a germ-grain model in R d generated by a stationary point process and i.i.d. convex primary grains n , n 2 N, that are independent of. Our formulas are based on the Palm probability of the germ process and the mean generalized curvature measure of the grain.… (More)