Results 271 to 280 of about 15,896 (333)

Analysis of human microcirculation in weightlessness: Study protocol and pre-study experiments

Clinical Hemorheology and Microcirculation, 2018
BACKGROUND: In weightlessness, alterations in organ systems have been reported. The microcirculation consists of a network of blood vessels with diameters of a few μm.
Nana-Yaw Bimpong-Buta, P. Jirak, B. Wernly, M. Lichtenauer, M. Masyuk, J. Muessig, Kristina Braun, Sema Kaya, M. Kelm, C. Jung   +9 more
semanticscholar   +1 more source

Molecular Biological Effects of Weightlessness and Hypergravity on Intervertebral Disc Degeneration.

Aerospace Medicine and Human Performance, 2017
INTRODUCTION The rate of intervertebral disc degeneration (IVDD) is influenced by environmental factors. Extracellular matrix (ECM) destruction and apoptosis of intervertebral disc cells are major characteristics of IVDD.
Di Wu, Chaoyi Zheng, Ji Wu, Rong-rong Huang, Xuan-Yu Chen, Tong Zhang, Lili Zhang   +6 more
semanticscholar   +1 more source

Pressure drop and void fraction during flow boiling in rectangular minichannels in weightlessness

Applied Thermal Engineering, 2013
David Brutin, Lounès Tadrist
exaly   +2 more sources

Weightlessness: A Matter of Gravity [PDF]

New England Journal of Medicine, 1977
The advent of space flight has permitted man to leave his accustomed place on the surface of the earth and take the first tentative steps outward into the vastness of the universe.
openaire   +2 more sources

Weightless Koeppe Gonioscopy

Archives of Ophthalmology, 1981
• A hand biomicroscope becomes weightless when it is suspended on an elastic belt. Its use and the use of soft, adhering goniolenses enhance the teaching and use of recumbent gonioscopy.
Walter Kalwat, James F. O'rourke, Madan Lal   +2 more
openaire   +3 more sources

Biomechanics in Weightlessness

PAJ: A Journal of Performance and Art, 2002
Creation of theatre or any other performance event in weightless conditions opens up the basic issues of physical realities to both the performers and the audience. The spectators, for example, have to be buckled down in order not to fly over to the stage while the dancers, normally studying the arrangement of the balancing points in their bodies ...
openaire   +2 more sources

Faraday instability in a near-critical fluid under weightlessness.

Physical review. E, Statistical, nonlinear, and soft matter physics, 2014
Experiments on near-critical hydrogen have been conducted under magnetic compensation of gravity to investigate the Faraday instability that arises at the liquid-vapor interface under zero-gravity conditions.
G. Gandikota, D. Chatain, S. Amiroudine, T. Lyubimova, D. Beysens   +4 more
semanticscholar   +1 more source

Weight and Weightlessness

The Physics Teacher, 1963
A definition of "weight" becomes more important now that manmade satellites, some with astronauts, revolve about the earth. Does the astronaut become weightless? Definitions and discussion of the terms weight and apparent weight are given. One definition is proposed as the best to use in a physics course.
openaire   +2 more sources

Lying in weightlessness

New Scientist, 2009
Huge voids in space where gravity disappears could harbour a dangerous secret.
openaire   +2 more sources

Illusions of verticality in weightlessness

The Clinical Investigator, 1993
In weightlessness most subjects feel themselves, and see the visual surroundings, in either an upright or an upside-down orientation although the gravitational force vector is missing. According to a theory of gravity perception, these illusions of positional and visual verticality are assumed to be caused by the force-independent z-axis bias of ...
Stefan Glasauer, Horst Mittelstaedt
openaire   +3 more sources