Results 241 to 250 of about 7,250 (291)
Some of the next articles are maybe not open access.
Amino aciduria in weightlessness
Acta Astronautica, 1979Urinary excretion of amino acids by the 9 Skylab crewmen was studied as an indicator of the metabolic effects caused by exposure to the space flight environment. Intake was consistent in quality and quantity throughout the 28, 59 and 84-day flights for each of the crewmen and complete collections were accomplished.
C S, Leach, P C, Rambaut, N, Di Ferrante
openaire +2 more sources
Laparoscopic surgery in weightlessness
Surgical Endoscopy, 1996Performing a surgical procedure in weightlessness has been shown not to be any more difficult than in a 1g environment if the requirements for the restraint of the patient, operator, and surgical hardware are observed. The feasibility of performing a laparoscopic surgical procedure in weightlessness, however, has been questionable.
M R, Campbell +3 more
openaire +2 more sources
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.
J, O'Rourke, M, Lal, W, Kalwat
openaire +2 more sources
• 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.
J, O'Rourke, M, Lal, W, Kalwat
openaire +2 more sources
The influence of weightlessness on pharmacokinetics
Fundamental & Clinical Pharmacology, 2005AbstractThe primary hostile factor during a spaceflight is the lack of gravity, which can induce space motion sickness and act on bones, muscles and the cardiovascular system. These physiological effects may modify the pharmacokinetics of the drugs administered during the flight producing reduced pharmacological activity or appearance of adverse ...
Peggy, Gandia +2 more
openaire +2 more sources
[Weightlessness or weightlessness simulation and vascular remodeling].
Hang tian yi xue yu yi xue gong cheng = Space medicine & medical engineering, 2003Weightlessness is inavoidable during spaceflight. It brings profound physiological effects on human body. Vascular remodeling is one of the important changes of cardiovascular system caused by weightlessness or simulated weightlessness. The paper summarized the studies on the effects of weightlessness or weightlessness simulation on vascular remodeling
Yong, Yue +3 more
openaire +1 more source
Neurocomputing, 2016
The most commonly used model for Artificial Neural Networks (ANNs) is based on neurons that implement their inherent functionality by computing a weighted sum of the provided inputs and yielding their result by applying an activation function. The challenge in this model is to infer the right set of weights that should be used to ensure learning ...
Nadia Nedjah +3 more
openaire +2 more sources
The most commonly used model for Artificial Neural Networks (ANNs) is based on neurons that implement their inherent functionality by computing a weighted sum of the provided inputs and yielding their result by applying an activation function. The challenge in this model is to infer the right set of weights that should be used to ensure learning ...
Nadia Nedjah +3 more
openaire +2 more sources
Illusions of verticality in weightlessness
The Clinical Investigator, 1993In 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 ...
Mittelstaedt, H., Glasauer, S.
openaire +3 more sources
Weightlessness: A case history
Acta Astronautica, 1975The facts presented represent, for convenience, a composite clinical picture of the three crewmen aboard Skylab II as observed by me.
openaire +2 more sources
Weightlessness: A Matter of Gravity
New England Journal of Medicine, 1977The 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
OTOLITH FUNCTIONS IN WEIGHTLESSNESS
1975The role of the vestibular organ in the exploration of space has been studied extensively during the past two decades. Many investigators have shown that some persons experience ill effects during the transition from the normal gravity to subgravity or weightlessness.
openaire +2 more sources