Results 111 to 120 of about 4,869 (218)

Characterization of neurospora circadian rhythms in space [PDF]

open access: yes
To determine whether the circadian rhythm of conidiation in neurospora crassa is endogenously derived or is driven by some geophysical time cue, an experiment was conducted on space shuttle flight STS-9, where inoculated race tubes were exposed to the ...
Ferraro, James S.
core   +1 more source

Hypergravity diagnostics and material synthesis in noble gas gliding arc plasma [PDF]

open access: yes, 2013
The behaviour of gliding arc discharge in argon and helium has been studied under normal gravity and hypergravity conditions. The similar influence of increased gas flow and increased gravity is reported.
Beckers Job   +7 more
core  

A study of murine bone marrow cells cultured in bioreactors which create an environment which simulated microgravity [PDF]

open access: yes
Previous research indicated that mouse bone marrow cells could be grown in conditions of simulated microgravity. This environment was created in rotating bioreactor vessels. On three attempts mouse cells were grown successfully in the vessels.
Lawless, Brother Desales
core   +1 more source

Numerical study on the shear strength of granular materials under the low confining pressure

open access: yesSoils and Foundations
The relationship between stress and strength in granular soil differs under low confining pressure as compared to high confining pressure, which is of great importance for the geotechnical engineering. Numerical simulations using discrete element method (
Daosheng Ling   +5 more
doaj   +1 more source

Saccadic eye movement during spaceflight [PDF]

open access: yes
Saccadic eye movements were studied in six subjects during two Space Shuttle missions. Reaction time, peak velocity and accuracy of horizontal, visually-guided saccades were examined preflight, inflight and postflight.
Linder, Barry J.   +4 more
core   +1 more source

Effects of acceleration in the Gz axis on human cardiopulmonary responses to exercise [PDF]

open access: yes, 2018
The aim of this paper was to develop a model from experimental data allowing a prediction of the cardiopulmonary responses to steady-state submaximal exercise in varying gravitational environments, with acceleration in the Gz axis (a g) ranging from 0 to
Antonutto, Guglielmo   +6 more
core  

Soil disturbance evaluation of soft clay based on stress-normalized small-strain stiffness

open access: yesJournal of Rock Mechanics and Geotechnical Engineering
Soil disturbance includes the change of stress state and the damage of soil structure. The field testing indices reflect the combined effect of both changes and it is difficult to identify the soil structure disturbance directly from these indices.
Yanguo Zhou   +4 more
doaj   +1 more source

Gravity receptors and responses [PDF]

open access: yes
The overall process of gravity sensing and response processes in plants may be divided conveniently into at least four components or stages: Stimulus susception (a physical event, characteristically the input to the G receptor system of environmental ...
Brown, Allan H.
core   +1 more source

Motion sickness susceptibility under weightless and hypergravity conditions generated by parabolic flight [PDF]

open access: yes
Motion sickness susceptibility under weightless and hypergravity conditions generated by parabolic ...
Graybiel, A.   +3 more
core   +1 more source

Barium titanate nanoparticles and hypergravity stimulation improve differentiation of mesenchymal stem cells into osteoblasts

open access: yesInternational Journal of Nanomedicine, 2015
Antonella Rocca,1,2 Attilio Marino,1,2 Veronica Rocca,3 Stefania Moscato,4 Giuseppe de Vito,5,6 Vincenzo Piazza,5 Barbara Mazzolai,1 Virgilio Mattoli,1 Thu Jennifer Ngo-Anh,7 Gianni Ciofani1 1Istituto Italiano di Tecnologia, Center for Micro-BioRobotics
Rocca A   +9 more
doaj  

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