Results 31 to 40 of about 5,103 (239)

Media ion composition controls regulatory and virulence response of Salmonella in spaceflight. [PDF]

open access: yesPLoS ONE, 2008
The spaceflight environment is relevant to conditions encountered by pathogens during the course of infection and induces novel changes in microbial pathogenesis not observed using conventional methods. It is unclear how microbial cells sense spaceflight-
James W Wilson   +41 more
doaj   +1 more source

Benchmarking surface tension measurement method using two oscillation modes in levitated liquid metals

open access: yesnpj Microgravity, 2021
The Faraday forcing method in levitated liquid droplets has recently been introduced as a method for measuring surface tension using resonance. By subjecting an electrostatically levitated liquid metal droplet to a continuous, oscillatory, electric field,
Nevin Brosius   +7 more
doaj   +1 more source

Coping in the final frontier: An intervention to reduce spaceflight-induced stress

open access: yesPsychologica, 2019
Research in human spaceflight has extensively documented how microgravity environments, such as spaceflight across Low Earth Orbit (LEO), affects astronauts’ and Spaceflight Participants’ emotions. However, a more refined understanding of this topic will
Lucas Monzani   +4 more
doaj   +1 more source

Time-resolved molecular measurements reveal changes in astronauts during spaceflight

open access: yesFrontiers in Physiology, 2023
From the early days of spaceflight to current missions, astronauts continue to be exposed to multiple hazards that affect human health, including low gravity, high radiation, isolation during long-duration missions, a closed environment and distance from
Minzhang Zheng   +11 more
doaj   +1 more source

Intraocular Pressure during Spaceflight and Risk of Glaucomatous Damage in Prolonged Microgravity

open access: yesEncyclopedia, 2023
Microgravity introduces diverse pathological and various physiological changes to the human body, including intraocular pressure. Astronauts may develop a constellation of symptoms and signs including optic disc edema, choroidal folds, and a hyperopic ...
Mouayad Masalkhi   +4 more
doaj   +1 more source

Histone deacetylase HDA-4-mediated epigenetic regulation in space-flown C. elegans

open access: yesnpj Microgravity, 2021
Epigenetic changes during long-term spaceflight are beginning to be studied by NASA’s twin astronauts and other model organisms. Here, we evaluate the epigenetic regulation of gene expression in space-flown C.
Atsushi Higashitani   +8 more
doaj   +1 more source

Critical Electrochemistry Technologies Applicable in Space Exploration

open access: yesAdvanced Science, EarlyView.
The available resources in space and discuss the application scenarios and challenges of electrochemical methods in four critical domains is analyzed: metallurgical processing of mineral resources, water resources utilization, carbon cycle management in extraterrestrial habitats, and electrical energy storage.
Ruisi Xu   +4 more
wiley   +1 more source

Release of CD36-associated cell-free mitochondrial DNA and RNA as a hallmark of space environment response

open access: yesNature Communications
A detailed understanding of how spaceflight affects human health is essential for long-term space exploration. Liquid biopsies allow for minimally-invasive multi-omics assessments that can resolve the molecular heterogeneity of internal tissues. Here, we
Nailil Husna   +8 more
doaj   +1 more source

Contactless Conductivity Detection for Capillary Electrophoresis—Developments From 2020 to 2024

open access: yesELECTROPHORESIS, EarlyView.
ABSTRACT The review covering the development of capillary electrophoresis with capacitively coupled contactless conductivity detection from 2020 to 2024 is the latest in a series going back to 2004. The article considers applications employing conventional capillaries and planar lab‐on‐chip devices as well as fundamental and technical developments of ...
Peter C. Hauser, Pavel Kubáň
wiley   +1 more source

Spaceflight-induced neuroplasticity in humans as measured by MRI: what do we know so far?

open access: yesnpj Microgravity, 2017
Space travel poses an enormous challenge on the human body; microgravity, ionizing radiation, absence of circadian rhythm, confinement and isolation are just some of the features associated with it.
Angelique Van Ombergen   +5 more
doaj   +1 more source

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