Results 121 to 130 of about 54,337 (284)

Telemedicine experience in the Brazilian Amazon

open access: yesInternational Journal of Integrated Care, 2012
Christopher Robert Jones   +8 more
doaj   +3 more sources

Cerebrovascular pulsatility following long duration spaceflight is associated with changes in pulse pressure and carotid artery stiffness

open access: yesExperimental Physiology, EarlyView.
Abstract Central artery stiffening increases the haemodynamic pulsations transmitted downstream towards target organs, including the brain. While recent evidence suggests that long duration spaceflight is associated with reduced common carotid artery (CCA) distensibility, cerebrovascular pulsatility has not been extensively characterized in astronauts.
Roxanne Fournier   +5 more
wiley   +1 more source

Sample positioning in microgravity [PDF]

open access: yes, 1993
Repulsion forces arising from laser beams are provided to produce mild positioning forces on a sample in microgravity vacuum environments. The system of the preferred embodiment positions samples using a plurality of pulsed lasers providing opposing ...
Sridharan, Govind
core   +1 more source

Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight

open access: yesExperimental Physiology, EarlyView.
Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley   +1 more source

Lunar and Martian gravity alter immune cell interactions with endothelia in parabolic flight

open access: yesnpj Microgravity
Returning to the moon and traveling to Mars represent the main targets of human space exploration missions within the upcoming decades. Comparable to microgravity, partial gravity in these destinations is assumed to dysregulate immune functions, thereby ...
Yu Du   +13 more
doaj   +1 more source

Application of Microgravity Experiments in Plastic Surgery: A Literature Review

open access: yesPlastic and Reconstructive Surgery, Global Open
Background:. Interest in microgravity is growing in the medical and surgical fields. This literature review aims to synthesize existing evidence on microgravity applications in plastic surgery, focusing on experimental methods, outcomes, and prospects ...
Jonathan Cornacchini, MD   +5 more
doaj   +1 more source

Microgravity Combustion Diagnostics Workshop [PDF]

open access: yes
Through the Microgravity Science and Applications Division (MSAD) of the Office of Space Science and Applications (OSSA) at NASA Headquarters, a program entitled, Advanced Technology Development (ATD) was promulgated with the objective of providing ...
Greenberg, Paul S.   +2 more
core   +1 more source

Process for preparation of large-particle-size monodisperse latexes [PDF]

open access: yes, 1981
Monodisperse latexes having a particle size in the range of 2 to 40 microns are prepared by seeded emulsion polymerization in microgravity. A reaction mixture containing smaller monodisperse latex seed particles, predetermined amounts of monomer ...
El-Aasser, M. S.   +3 more
core   +1 more source

Microgravity‐induced changes in skeletal muscle and possible countermeasures: What we can learn from bed rest and human space studies

open access: yesExperimental Physiology, EarlyView.
Abstract Despite exercise countermeasures to sustain health and performance in spaceflight, complete maintenance of muscle mass and functions in microgravity is still not possible for most astronauts. The principal cause of the limited effectiveness of existing exercise countermeasures is the difficulty in achieving full loading forces in space.
Alessandra Bosutti   +6 more
wiley   +1 more source

A new accelerometer recording system for shuttle use [PDF]

open access: yes
Microgravity investigators are interested in enhancing the capabilities and improving the information return from accelerometers used in microgravity research.
Lichtenberg, Byron
core   +1 more source

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