Search Results - "Anken, Ralf H."

On the role of the central nervous system in regulating the mineralisation of inner-ear otoliths of fish by Anken, Ralf H

“…Stato- or otoliths are calcified structures in the organ of balance and equilibrium of vertebrates, the inner ear, where they enhance its sensitivity to…”
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Weightlessness during spaceflight results in enhanced synapse formation in a fish brain vestibular nucleus by Ibsch, Michael, Anken, Ralf H, Rahmann, Hinrich

“…Synapse counts were undertaken by conventional electron microscopy in primary vestibular integration centers, (i.e. nucleus descendens and nucleus…”
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Morphometry of Fish Inner Ear Otoliths after Development at 3g Hypergravity by ANKEN, R. H, KAPPEL, T, RAHMANN, H

“…Size and asymmetry (size difference between the left and right sides) of inner ear otoliths of larval cichlid fish were determined after a long-term stay in…”
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Effects of UV-B radiation on photosynthesis activity of Wolffia arrhiza as probed by chlorophyll fluorescence transients by Wang, Gaohong, Hao, Zongjie, Anken, Ralf H., Lu, Jinying, Liu, Yongding

“…The higher plant Wolffia arrhiza is regarded to be well suited concerning the provision of photosynthetic products in the cycle of matter of a Controlled…”
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Clinorotation Increases the Growth of Utricular Otoliths of Developing Cichlid Fish by Anken, Ralf H., Baur, Ulrich, Hilbig, Reinhard

“…It has been shown earlier that hypergravity slows down inner ear otolith growth in developing fish as an adaptation towards increased environmental gravity…”
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Determination of the threshold of gravity for inducing kinetosis in fish: a drop-tower experiment by Anken, R H, Hilbig, R

“…It has been repeatedly shown earlier that some fish of a given batch reveal motion sickness (a kinetosis) at the transition from 1 g to microgravity. In the…”
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Effects of Wall Vessel Rotation on the Growth of Larval Zebrafish Inner Ear Otoliths by Li, Xiaoyan, Anken, Ralf H., Wang, Gaohong, Hilbig, Reinhard, Liu, Yongding

“…Stimulus dependence is a general feature of developing sensory systems. It has been shown earlier that the growth of otoliths of late-stage Cichlid fish (…”
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Susceptibility to abnormal (kinetotic) swimming fish correlates with inner ear carbonic anhydrase-reactivity by Beier, Marion, Anken, Ralf H, Rahmann, Hinrich

“…Larval cichlid fish ( Oreochromis mossambicus) were kept at hypergravity (hg; centrifuge) for 6 h. Following the transfer to 1 g (i.e. stopping the…”
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Fish inner ear otoliths stop calcium incorporation after vestibular nerve transection by Anken, Ralf H, Edelmann, Elke, Rahmann, Hinrich

“…Previous investigations revealed that the growth of fish inner ear otoliths (otolith size and calcium incorporation) depends on the amplitude and the direction…”
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Hypergravity decreases carbonic anhydrase-reactivity in inner ear maculae of fish by Anken, Ralf H., Beier, Marion, Rahmann, Hinrich

“…Previous investigations revealed that fish inner ear otolith growth depends on the amplitude and the direction of gravity. Both otolith total size, otolith…”
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Histology of the utricle in kinetotically swimming fish: a parabolic aircraft flight study by Bäuerle, Annegret, Anken, Ralf H., Hilbig, Reinhard, Rahmann, Hinrich

“…Objective Humans taking part in parabolic aircraft flights (PAFs) may suffer from space motion sickness, which is a form of kinetosis. As it has been…”
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Effect of hypergravity on the Ca/Sr composition of developing otoliths of larval cichlid fish ( Oreochromis mossambicus) by Anken, Ralf H., Ibsch, Michael, Breuer, Jörn, Rahmann, Hinrich

“…The amounts of calcium and strontium were measured by inductively coupled plasma mass spectrometry (ICP-MS) in saccular and utricular inner ear otoliths…”
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On the origin of susceptibility to kinetotic swimming behaviour in fish: a parabolic aircraft flight study by Hilbig, Reinhard, Anken, Ralf H, Rahmann, Hinrich

“…Humans taking part in parabolic aircraft flights (PAFs) may suffer from motion sickness (SMS, a kinetosis; it comprises a dynamic and a static component). It…”
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Vesicular bodies in fish maculae are artifacts not contributing to otolith growth by Ibsch, Michael, Anken, Ralf H, Vöhringer, Petra, Rahmann, Hinrich

“…The presence, morphology and possible origin of vesicle-like bodies (VBs) within the inner ear macular otolithic membrane of developmental stages of cichlid…”
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Neurophysiology of Developing Fish at Altered Gravity: Background—Facts–Perspectives by Anken, Ralf H

“…During the entire evolution of life on Earth, the phylogenetic as well as the individual development of all organisms took place under constant gravity…”
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Unusual brain nucleus in the diencephalon of a perciform (nototheniid) fish from Antarctica by Anken, R H, Rahmann, H

“…This cytoarchitectonic analysis on the rostral diencephalon of antarctic perciform fishes confirms the previously established perciform diencephalic body plan…”
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Altered gravity affects succinate dehydrogenase reactivity in specific nuclei of fish brain by Anken, R H, Slenzka, K, Neubert, J, Rahmann, H

“…The effect of long-term (10 days) altered gravitational conditions upon succinate dehydrogenase (SDH) reactivity in total brain as well as in individual brain…”
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Neurobiology of fish under altered gravity conditions by Anken, Ralf H, Ibsch, Michael, Rahmann, Hinrich

“…In vertebrates (including man), an altered gravitational environment such as weightlessness can induce malfunction of the inner ear, based on an irregular…”
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Fish inner ear otolith size and bilateral asymmetry during development by Anken, Ralf H., Werner, Katja, Ibsch, Michael, Rahmann, Hinrich

“…Size and bilateral asymmetry (i.e. size difference between the left and the right hand side) of inner ear otoliths of larval mouthbreeding cichlid fish were…”
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Gangliosides affect membrane-channel activities dependent on ambient temperature by Kappel, T, Anken, R H, Hanke, W, Rahmann, H

“…1. The functional properties of biological membranes depend on their molecular composition. In regard to this, charged glycosphingolipids play an outstanding…”
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