Results 11 to 20 of about 7,041 (240)

Effect of spaceflight on the circadian rhythm, lifespan and gene expression of Drosophila melanogaster. [PDF]

open access: yesPLoS ONE, 2015
Space travelers are reported to experience circadian rhythm disruption during spaceflight. However, how the space environment affects circadian rhythm is yet to be determined.
Lingling Ma, Jun Ma, Kanyan Xu
doaj   +1 more source

Integrative transcriptomics and proteomics profiling of Arabidopsis thaliana elucidates novel mechanisms underlying spaceflight adaptation

open access: yesFrontiers in Plant Science, 2023
Spaceflight presents a unique environment with complex stressors, including microgravity and radiation, that can influence plant physiology at molecular levels.
Gbolaga O. Olanrewaju   +9 more
doaj   +1 more source

In situ synthesis of high dielectric constant GNPs/PBO nanocomposites with enhanced thermostability

open access: yesIET Nanodielectrics, 2019
Graphite nanoparticles (GNPs) were introduced into poly(p-phenylene benzobisoxazole) (PBO) matrix to produce composites via in situ polymerisation. Films of various composites were fabricated through the solution casting method in methanesulfonic acid ...
Yi Chen   +6 more
doaj   +1 more source

Preparation and properties of superhydrophobic epoxy composite coatings on magnesium alloys

open access: yesCailiao gongcheng, 2022
The traditional preparation process of superhydrophobic surfaces(SHS) is complicated and the mechanical stability of SHS is less than satisfactory in most cases, which seriously restricts the practical application. The "binder+nanoparticles" strategy was
XIA Xianchao   +6 more
doaj   +1 more source

Detections of Water Vapor Increase Over the North Polar Troughs on Mars as Observed by CRISM

open access: yesGeophysical Research Letters, 2020
The Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) onboard the Mars Reconnaissance Orbiter has been observing the north polar layered deposits (NPLD) of Mars. Polar wind circulations are instrumental in shaping the NPLD.
Alain SJ. Khayat   +2 more
doaj   +1 more source

Root Skewing-Associated Genes Impact the Spaceflight Response of Arabidopsis thaliana

open access: yesFrontiers in Plant Science, 2020
The observation that plant roots skew in microgravity recently refuted the long-held conviction that skewing was a gravity-dependent phenomenon. Further, spaceflight root skewing suggests that specific root morphologies and cell wall remodeling systems ...
Brandon Califar   +13 more
doaj   +1 more source

Impact of diet on human nutrition, immune response, gut microbiome, and cognition in an isolated and confined mission environment

open access: yesScientific Reports, 2022
Long-duration spaceflight impacts human physiology, including well documented immune system dysregulation. The space food system has the potential to serve as a countermeasure to maladaptive physiological changes during spaceflight.
Grace L. Douglas   +15 more
doaj   +1 more source

Anemia of spaceflight [PDF]

open access: yesBlood, 1982
A consistent deficit in the red cell mass has been observed during both the American and Soviet orbital space flights and is sometimes referred to as “astronaut anemia.” This may be associated with a reduction in plasma volume so that the hematocrit and the hemoglobin concentration remain unchanged.
openaire   +2 more sources

Alterations in Saliva and Plasma Cytokine Concentrations During Long-Duration Spaceflight

open access: yesFrontiers in Immunology, 2021
Long-duration spaceflight is known to cause immune dysregulation in astronauts. Biomarkers of immune system function are needed to determine both the need for and effectiveness of potential immune countermeasures for astronauts.
Stephanie S. Krieger   +9 more
doaj   +1 more source

An Observation‐Driven Approach to Improve Vegetation Phenology in a Global Land Surface Model

open access: yesJournal of Advances in Modeling Earth Systems, 2020
An empirical model calibration approach is presented that aims to approximate missing biosphere processes in a global land surface model without the need for substantial model structural changes.
Jana Kolassa   +5 more
doaj   +1 more source

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