Results 11 to 20 of about 1,055,858 (237)

Hydrogel mechanical properties in altered gravity [PDF]

npj Microgravity
Exposure to altered gravity influences cellular behaviour in cell cultures. Hydrogels are amongst the most common materials used to produce tissue-engineering scaffolds, and their mechanical properties play a crucial role in cell-matrix interaction ...
Vanja Mišković, Immacolata Greco, Christophe Minetti, Francesca Cialdai, Monica Monici, Arianna Gazzi, Jeremiah Marcellino, Yarjan Abdul Samad, Lucia Gemma Delogu, Andrea C. Ferrari, Carlo Saverio Iorio   +10 more
doaj   +21 more sources

A computational model of altered neuronal activity in altered gravity

npj Microgravity
Electrophysiological experiments have shown that neuronal activity changes upon exposure to altered gravity. More specifically, neurons’ firing rates increase during microgravity and decrease during centrifugal-induced hypergravity. Different biophysical
Camille Gontier, Laura Drouvé, Johannes Striebel, Maximilian Sturm, Zoe Meerholz, Sarah Schunk, Yannick Lichterfeld, Christian Liemersdorf   +7 more
doaj   +5 more sources

Lipoxygenase activity in altered gravity

, 2002
Lipoxygenases are a family of enzymes which dioxygenate unsaturated fatty acids, thus initiating lipoperoxidation of membranes or the synthesis of signalling molecules, or inducing structural and metabolic changes in the cell. This activity is the basis for the critical role of lipoxygenases in a number of pathophysiological conditions, both in animals
Maccarrone M, BATTISTA, Natalia, Bari M, Finazzi Agrò A.   +3 more
core   +7 more sources

Effects of Local Gravity Compensation on Motor Control During Altered Environmental Gravity [PDF]

Frontiers in Neural Circuits, 2021
Our sensorimotor control is well adapted to normogravity environment encountered on Earth and any change in gravity significantly disturbs our movement.
Tjasa Kunavar, Tjasa Kunavar, Marko Jamšek, Marko Jamšek, Marie Barbiero, Marie Barbiero, Gunnar Blohm, Daichi Nozaki, Charalambos Papaxanthis, Olivier White, Jan Babič   +10 more
doaj   +3 more sources

Heart Rate Monitoring and Control in Altered Gravity Conditions

2007 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2007
On the basis of indirect evidences it has been hypothesized that during space missions the almost complete absence of gravity might impair the baroreflex control of circulation. In the first part of this paper we report results obtained from a series of experiments carried out to directly verify this hypothesis during the 16-day STS 107 Shuttle flight.
Di Rienzo M, Parati G, Rizzo F, Meriggi P, Merati G, Faini, Castiglioni P   +6 more
openaire   +5 more sources

Altered gravity and time perception: a brief review

Frontiers in Psychology
Gravity is fundamental to life on Earth, shaping biological systems and perceptual expectations. Understanding how gravity influences cognition is critical as humans increasingly encounter altered-gravity environments through spaceflight and parabolic ...
Amir Jahanian Najafabadi, Carolyn Kroger
doaj   +4 more sources

Editorial: The Effects of Altered Gravity on Physiology [PDF]

Frontiers in Physiology, 2019
International ...
Gilles Clement, Richard D. Boyle, Hanns-Christian Gunga   +2 more
doaj   +4 more sources

Physical cognition in altered gravity: Link between sensorimotor and cognitive adaptability

iScience
Summary: A hallmark of human intelligence is rapid adaptation to changing environments. Yet the link between sensorimotor recalibration to new physical conditions and cognitive updating of internal models remains unclear.
Minxin Cheng, Danyang Han, Maryam Haq, Ori Ossmy   +3 more
doaj   +2 more sources

RCCS Bioreactor-Based Modeled Microgravity Affects Gastric Cancer Cells and Improves the Chemotherapeutic Effect

Membranes, 2022
(1) Background: The main purpose of the study was to determine whether altered gravity might alter cell viability, improve drug delivery and modulate the expression of drug resistance-related genes.
Nina Rembiałkowska, Dagmara Baczyńska, Magda Dubińska-Magiera, Anna Choromańska, Katarzyna Bieżuńska-Kusiak, Agnieszka Gajewska-Naryniecka, Vitalij Novickij, Jolanta Saczko, Dawid Przystupski, Julita Kulbacka   +9 more
doaj   +1 more source

Horizontal and Vertical Distance Perception in Altered Gravity [PDF]

Scientific Reports, 2020
AbstractThe perception of the horizontal and vertical distances of a visual target to an observer was investigated in parabolic flight during alternating short periods of normal gravity (1 g). microgravity (0 g), and hypergravity (1.8 g). The methods used for obtaining absolute judgments of egocentric distance included verbal reports and visually ...
Clément, Gilles, Bukley, Angie, Loureiro, Nuno, Lindblad, Louise, Sousa, Duarte, Zandvilet, André   +5 more
openaire   +3 more sources