Results 81 to 90 of about 12,555 (224)
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
Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight
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
Brain strain: Blood flow and metabolism in environmental extremes
Abstract This narrative review compares and contrasts the most commonly encountered environmental stressors on human cerebrovascular functioning. From high altitude and space, extreme apnoea, heat and cold stress, the impact of these stressors on the regulation of cerebral blood flow (CBF) and oxygen metabolism (CMRO2${\mathrm{CM}}{{\mathrm{R}}_ ...
Dario Vrdoljak +3 more
wiley +1 more source
MRNG: Accessing Cosmic Radiation as an Entropy Source for a Non-Deterministic Random Number Generator. [PDF]
Kutschera S +4 more
europepmc +1 more source
Abstract Exercise in the heat often causes gastrointestinal (GI) disturbances, which can impair performance. Single amino acid supplementation can attenuate gut damage and enhance exercise tolerance; however, the effectiveness of innate amino acid blends from plant‐based proteins remains underexplored.
Robyn Aitkenhead +4 more
wiley +1 more source
Geminga: A Window into the Role Played by the Local Halo in the Cosmic-Ray Propagation Process
A novel phenomenon among the recently observed Geminga pulsar halo is the presence of distinct radiation morphology at high energies, while no extended radiation is detected in the 10–500 GeV energy band within a 40° × 40° region.
Lin Nie +3 more
doaj +1 more source
Galactic cosmic radiation exposure causes multifaceted neurocognitive impairments. [PDF]
Alaghband Y +15 more
europepmc +1 more source
Cancer risks from cosmic radiation exposure in flight: A review. [PDF]
Scheibler C +6 more
europepmc +1 more source

