Results 11 to 20 of about 6,136,424 (429)

Hemolysis contributes to anemia during long-duration space flight [PDF]

open access: yesNat Med, 2022
Anemia in astronauts has been noted since the first space missions, but the mechanisms contributing to anemia in space flight have remained unclear.
G. Trudel   +4 more
semanticscholar   +2 more sources

Melatonin is a potential drug for the prevention of bone loss during space flight [PDF]

open access: yesJ Pineal Res, 2019
Astronauts experience osteoporosis‐like loss of bone mass because of microgravity conditions during space flight. To prevent bone loss, they need a riskless and antiresorptive drug. Melatonin is reported to suppress osteoclast function.
M. Ikegame   +52 more
semanticscholar   +2 more sources

Osteocyte biology and space flight [PDF]

open access: yesCurrent Biotechnology, 2013
The last decade has seen an impressive expansion of our understanding of the role of osteocytes in skeletal homeostasis. These amazing cells, deeply embedded into the mineralized matrix, are the key regulators of bone homeostasis and skeletal mechano sensation and transduction. They are the cells that can sense the mechanical forces applied to the bone
Chris Adamson   +4 more
openaire   +3 more sources

Association of Space Flight With Problems of the Brain and Eyes

open access: yesJAMA Ophthalmol, 2018
This study explores the association of cerebrospinal fluid pressure and brain upward shift with space flight–associated neuroocular syndrome in postflight astronauts.
Ari Shinojima, I. Kakeya, Satoru Tada
semanticscholar   +2 more sources

Is space flight arrhythmogenic? [PDF]

open access: yesFrontiers in Physiology, 2023
O. V. Popova, V. B. Rusanov
openaire   +4 more sources

Performance analysis of control allocation using data‐driven integral quadratic constraints

open access: yesAdvanced Control for Applications, Volume 4, Issue 4, December 2022., 2022
Abstract A new method is presented for evaluating the performance of a nonlinear control allocation system within a linear control loop. To that end, a worst‐case gain analysis problem is formulated that can be readily solved by means of well‐established methods from robustness analysis using integral quadratic constraints (IQCs).
Manuel Pusch   +2 more
wiley   +1 more source

Neural-Fly enables rapid learning for agile flight in strong winds [PDF]

open access: yesScience Robotics, 2022
Executing safe and precise flight maneuvers in dynamic high-speed winds is important for the ongoing commoditization of uninhabited aerial vehicles (UAVs).
M. O'Connell   +6 more
semanticscholar   +1 more source

The description and validation of the computationally Efficient CH4–CO–OH (ECCOHv1.01) chemistry module for 3-D model applications [PDF]

open access: yesGeoscientific Model Development, 2016
We present the Efficient CH4–CO–OH (ECCOH) chemistry module that allows for the simulation of the methane, carbon monoxide, and hydroxyl radical (CH4–CO–OH) system, within a chemistry climate model, carbon cycle model, or Earth system model.
Y. F. Elshorbany   +4 more
doaj   +1 more source

In-flight performance and calibration of the Infrared Array Camera (IRAC) for the Spitzer Space Telescope [PDF]

open access: yesSPIE Astronomical Telescopes + Instrumentation, 2004
The Infrared Array Camera (IRAC) is one of three focal plane instruments on board the Spitzer Space Telescope. IRAC is a four-channel camera that obtains simultaneous broad-band images at 3.6, 4.5, 5.8, and 8.0 μm in two nearly adjacent fields of view ...
G. Fazio   +64 more
semanticscholar   +1 more source

Heliocentric Distance and Solar Activity Dependence of Sustained Quasi-radial Interplanetary Magnetic Field Occurrence

open access: yesThe Astrophysical Journal, 2023
Planets close to their stars experience an interplanetary magnetic field (IMF) that is dominantly quasi-radial. Our solar system serves as a laboratory to study how the occurrence of quasi-radial IMF varies away from the star and under different stellar ...
Brandon L. Burkholder   +7 more
doaj   +1 more source

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