Results 21 to 30 of about 19,941 (243)

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

Journal 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, Rolf H. Reichle, Randal D. Koster, Qing Liu, Sarith Mahanama, Fan‐Wei Zeng   +5 more
doaj   +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

Geophysical 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, William R. Paterson, Christopher Bard, John Dorelli, Alex Glocer, Menelaos Sarantos, Rob Wilson   +6 more
doaj   +1 more source

RTMS Mitigates Simulated Spaceflight-Induced Emotional Dysfunction Through VEGFR-2-Mediated Neuroprotection. [PDF]

Brain Behav
Summary of rTMS‐induced behavioral rescue through prefrontal VEGFR‐2 signaling under simulated spaceflight conditions. Simulated space composite environment (SSCE) exposure triggers emotional dysfunction and social deficits. Therapeutic intervention with repetitive transcranial magnetic stimulation (rTMS) activates VEGFR‐2‐dependent neuroprotection ...
Liang R, Xu Q, Ren J, Wang L, Cheng X, Zhao F, Xu J, Yang J, Ming D.   +8 more
europepmc   +2 more sources

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

Scientific 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, Ryota Sugimoto, Hiroe Imai, Kohei Atsuji, Koji Yamada, Yusuke Kawano, Iwao Ohtsu, Kengo Suzuki   +7 more
doaj   +1 more source

Neurosurgery and Manned Spaceflight [PDF]

Neurosurgery, 2018
ABSTRACT There has been a renewed interest in manned spaceflight due to endeavors by private and government agencies. Publicized goals include manned trips to or colonization of Mars. These missions will likely be of long duration, exceeding existing records for human exposure to extra-terrestrial conditions.
Sandip S, Panesar, Juan C, Fernandez-Miranda, Michel, Kliot, Keyoumars, Ashkan   +3 more
openaire   +2 more sources

More Effective Human Spaceflight Programs and Their International Security Implications [PDF]

, 2013
NASA can more effectively perform its missions by transferring its aeronautic responsibilities to the Federal Aviation Administration and be renamed the National Space Agency. The U.S. must also recognize that space is an emerging arena of international
Chapman, Bert, Saikia, Sarag J
core   +1 more source

Nrf2 alleviates spaceflight-induced immunosuppression and thrombotic microangiopathy in mice

Communications 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, Ikuo Hirano, Atsushi Hasegawa, Mikiko Suzuki, Akihito Otsuki, Keiko Taguchi, Fumiki Katsuoka, Akira Uruno, Norio Suzuki, Akane Yumoto, Risa Okada, Masaki Shirakawa, Dai Shiba, Satoru Takahashi, Takafumi Suzuki, Masayuki Yamamoto   +15 more
doaj   +1 more source

Defending Spaceflight - The Echoes of Apollo [PDF]

, 2016
This paper defends, and emphasizes the importance of, spaceflight, broadly construed to include human and unmanned spaceflight, space science, exploration and development.
Rovetto, Robert J.
core   +3 more sources

Preparation and properties of Mg-Nd-Zn-Zr rare earth magnesium alloy composite coatings

Cailiao gongcheng
To explore the effects of different surface treatment processes on the properties of rare earth magnesium alloys，this study employs Mg-Nd-Zn-Zr rare earth magnesium alloy as the research subject and conducts surface modification by using three processes：
NIE Jingjing, XIA Xianchao, SUN Jingli, YAO Wende, LI Jing, LIU Bo, WU Lili, ZOU Wenbing, WANG Kun, YUAN Yong   +9 more
doaj   +1 more source

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

Frontiers 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, D. da Silva, D. da Silva, C. Bard, J. Dorelli, M. Kirk, B. Thompson, J. Shuster, J. Shuster   +8 more
doaj   +1 more source