Results 21 to 30 of about 43,985 (306)

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

Effects of Spaceflight on Human Induced Pluripotent Stem Cell-Derived Cardiomyocyte Structure and Function. [PDF]

open access: yes, 2019
With extended stays aboard the International Space Station (ISS) becoming commonplace, there is a need to better understand the effects of microgravity on cardiac function. We utilized human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs)
Agrawal   +30 more
core   +1 more source

Towards an integrated scientific and social case for human space exploration [PDF]

open access: yes, 2004
I will argue that an ambitious programme of human space exploration, involving a return to the Moon, and eventually human missions to Mars, will add greatly to human knowledge. Gathering such knowledge is the primary aim of science, but science's compart-
Crawford, Ian
core   +1 more source

New Results From Galileo's First Flyby of Ganymede: Reconnection‐Driven Flows at the Low‐Latitude Magnetopause Boundary, Crossing the Cusp, and Icy Ionospheric Escape

open access: yesGeophysical Research Letters, 2018
On 27 June 1996, the NASA Galileo spacecraft made humanity's first flyby of Jupiter's largest moon, Ganymede, discovering that it is the only moon known to possess an internally generated magnetic field. Resurrecting the original Galileo Plasma Subsystem
Glyn Collinson   +6 more
doaj   +1 more source

Limitations in Predicting the Space Radiation Health Risk for Exploration Astronauts [PDF]

open access: yes, 2018
Despite years of research, understanding of the space radiation environment and the risk it poses to long-duration astronauts remains limited. There is a disparity between research results and observed empirical effects seen in human astronaut crews ...
Auñón-Chancellor, Serena M.   +6 more
core   +4 more sources

Impact of spaceflight and artificial gravity on sulfur metabolism in mouse liver: sulfur metabolomic and transcriptomic analysis

open access: yesScientific Reports, 2021
Spaceflight induces hepatic damage, partially owing to oxidative stress caused by the space environment such as microgravity and space radiation. We examined the roles of anti-oxidative sulfur-containing compounds on hepatic damage after spaceflight.
Ryo Kurosawa   +7 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

Nrf2 alleviates spaceflight-induced immunosuppression and thrombotic microangiopathy in mice

open access: yesCommunications Biology, 2023
Spaceflight-related stresses impact health via various body systems, including the haematopoietic and immune systems, with effects ranging from moderate alterations of homoeostasis to serious illness.
Ritsuko Shimizu   +15 more
doaj   +1 more source

The impact of space flight on survival and interaction of Cupriavidus metallidurans CH34 with basalt, a volcanic moon analog rock [PDF]

open access: yes, 2017
Microbe-mineral interactions have become of interest for space exploration as microorganisms could be used to biomine from extra-terrestrial material and extract elements useful as micronutrients in life support systems.
Bo Byloos   +9 more
core   +2 more sources

The impact of dimensionality reduction of ion counts distributions on preserving moments, with applications to data compression

open access: yesFrontiers in Astronomy and Space Sciences, 2023
The field of space physics has a long history of utilizing dimensionality reduction methods to distill data, including but not limited to spherical harmonics, the Fourier Transform, and the wavelet transform.
D. da Silva   +8 more
doaj   +1 more source

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