Machaeridian locomotion

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A pyritized lepidocoleid machaeridian (Annelida) from the Lower Devonian Hunsruck Slate, Germany.

A machaeridian, Lepidocoleus hohensteini sp. nov., is described from the Hunsrück Slate (Lower Emsian) of Germany. The available material includes a unique example preserving evidence of the soft tissues, only the second machaeridian specimen to do so and the first lepidocoleid. This specimen shows that the plates are attached to alternate segments in the trunk. The morphology is consistent wit...

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In the present study, the effects of pregnant NMRI mice restraint stress on the responsibility of their children to the behavioral properties of morphine, sulpiride and dextromethorphan were investigated in the F2 generation. Twenty four pregnant NMRI female mice (W: 25 g) were divided into the experimental and control groups (n = 12/group). Animals in the experimental group were kept in the r...

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Animal Locomotion

Recent experimental and computational studies of swimming hydrodynamics have contributed significantly to our understanding of how animals swim, but much remains to be done. Ten questions are presented here as an avenue to discuss some of the arenas in which progress still is needed and as a means of considering the technical approaches to address these questions. 1. What is the threedimensiona...

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Locomotion , Vertebrate

Dickinson, M. H., Lehmann, F.-O., and Sane, S. P., 1999, Wing rotation and the aerodynamic basis of insect flight, Science, 284:1954–1960. Ekeberg, O., and Grillner, S. 1999, Simulations of neuromuscular control in lamprey swimming, Phil. Trans. R. Soc. Lond. B, 354:895–902. Kristan, W. B., Jr., Skalak, R., Wilson, R. J. A., Skierczynski, B. A., Murray, J. A., Eisenhart, F. J., and Cacciatore, ...

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ژورنال

عنوان ژورنال: Lethaia

سال: 2009

ISSN: 0024-1164,1502-3931

DOI: 10.1111/j.1502-3931.2009.00165.x