Hypergravity facilities in the ESA ground-based facility program: current research activities and future tasks

Autor: Ruth Hemmersbach, Jack J. W. A. van Loon, Guido Petrat, Ralf Anken, Timo Frett

Publikováno v: Microgravity Science and Technology, 28(3), 205-214. Springer Netherlands
Frett, T, Petrat, G, van Loon, J J W A, Hemmersbach, R & Anken, R 2016, ' Hypergravity facilities in the ESA ground-based facility program: current research activities and future tasks ', Microgravity Science and Technology, vol. 28, no. 3, pp. 205-214 . https://doi.org/10.1007/s12217-015-9462-9

Research on Artificial Gravity (AG) created by linear acceleration or centrifugation has a long history and could significantly contribute to realize long-term human spaceflight in the future. Employing centrifuges plays a prominent role in human phy

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a917bd483a94e12f4e2410b783f051d9
https://doi.org/10.1007/s12217-015-9462-9

Inner Ear Otolith Asymmetry in Late-Larval Cichlid Fish (Oreochromis mossambicus, Perciformes) Showing Kinetotic Behaviour Under Diminished Gravity

Autor: Ralf Anken, Reinhard Hilbig, Miriam Knie

Publikováno v: Scientific Reports, Vol 7, Iss 1, Pp 1-7 (2017)
Scientific Reports

The inner ears of all vertebrates are designed to perceive auditory and vestibular inputs. Although a tremendous diversity in the inner ear can be found even among bony fishes, the morphologies of the utricle and of the semicircular canals are rather

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::04bd47bc49b4d1f136c57f3d3b90edc0
https://elib.dlr.de/116197/

Impact of a high magnetic field on the orientation of gravitactic unicellular organisms-a critical consideration about the application of magnetic fields to mimic functional weightlessness

Autor: Wolfgang Alt, Ruth Hemmersbach, Peter Richter, Peter C. M. Christianen, Ralf Anken, Kai Waßer, Jens Hauslage, Michael Lebert, Peter W. Albers, Anja Simon

Publikováno v: Astrobiology, 14, 3, pp. 205-215
Astrobiology, 14, 205-215

The gravity-dependent behavior of Paramecium biaurelia and Euglena gracilis have previously been studied on ground and in real microgravity. To validate whether high magnetic field exposure indeed provides a ground-based facility to mimic functional

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::01e872366e2293b931b4e30e8ca307d8
https://doi.org/10.1089/ast.2013.1085

Effects of Simulated Microgravity on Otolith Growth of Larval Zebrafish using a Rotating-Wall Vessel: Appropriate Rotation Speed and Fish Developmental Stage

Autor: Ralf Anken, Xiaoyan Li, Yongding Liu, Liyue Liu, Gaohong Wang

Stimulus dependence is a general feature of developing animal sensory systems. In this respect, it has extensively been shown earlier that fish inner ear otoliths can act as test masses as their growth is strongly affected by altered gravity such as

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::156c59f675938e101e9dd6d765498c78
https://doi.org/10.1007/s12217-016-9518-5

Swimming behaviour of the upside-down swimming catfish (Synodontis nigriventris) at high-quality microgravity – A drop-tower experiment

Autor: Ralf Anken, Reinhard Hilbig

Publikováno v: Advances in Space Research. 44:217-220

The catfish Synodontis nigriventris often shows a unique swimming behaviour in being oriented upside-down. When swimming near a (e.g., vertical) substrate, however, the animals orient themselves with their ventral side towards this substrate. This te

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::87018e1ee1698e99e5bb30407c0eb27a
https://doi.org/10.1016/j.asr.2009.02.009