Results 21 to 30 of about 6,642 (220)

Anemia of spaceflight [PDF]

Blood, 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

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

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

Long-range DCS-Anya trajectory planning algorithm considering initial and terminal state constraints

Xibei Gongye Daxue Xuebao
In long-range Earth surface planning scenarios, the curvature of the spherical surface significantly influences trajectory planning. Addressing the problem of long-range spherical trajectory planning with initial and end-state constraints, a DCS-Anya ...
LIU Siyu, CAO Yitao, YANG Chuang, WANG Yifei, ZHANG Shunjia   +4 more
doaj   +1 more source

Effect of heat treatment on microstructure and properties of Mg-12Y-1Al alloy

Cailiao gongcheng
The microstructure of Mg-12Y-1Al alloy with solution treatment and aging treatment was studied by optical microscope, X-ray diffraction and scanning electron microscope.
NIE Jingjing, PAN Yue, YUAN Xing, XIA Xianchao, SUN Jingli, LI Yangxin, YING Tao, XIAO Lyu   +7 more
doaj   +1 more source

Impacts of the Spaceflight to the Immune System

Hanggong uju uihakoeji, 2021
Changes the gravity has a significant affect on the immune system. Astronauts experience the gravity changing during spaceflight, especially when launching and landing they experience hypergravity, and during spaceflight they feel microgravity.
Doston Sultonov, Young Hyo Kim
doaj   +1 more source

Spaceflight enhances cell aggregation and random budding in Candida albicans. [PDF]

PLoS ONE, 2013
This study presents the first global transcriptional profiling and phenotypic characterization of the major human opportunistic fungal pathogen, Candida albicans, grown in spaceflight conditions. Microarray analysis revealed that C. albicans subjected to
Aurélie Crabbé, Sheila M Nielsen-Preiss, Christine M Woolley, Jennifer Barrila, Kent Buchanan, James McCracken, Diane O Inglis, Stephen C Searles, Mayra A Nelman-Gonzalez, C Mark Ott, James W Wilson, Duane L Pierson, Heidemarie M Stefanyshyn-Piper, Linda E Hyman, Cheryl A Nickerson   +14 more
doaj   +1 more source

Text-to-image artificial intelligence to understand astronaut visual phenomena during spaceflight

The Pan-American Journal of Ophthalmology, 2023
Astronauts have documented visual phenomena during spaceflight. However, given that these are only experienced by the astronaut themselves, these unique neuro-ophthalmic visual phenomena occur while in space which remain poorly understood by ...
Ethan Waisberg, Joshua Ong, Mouayad Masalkhi, Nasif Zaman, Andrew G Lee, Alireza Tavakkoli   +5 more
doaj   +1 more source

From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

Advanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz, Yaroslav Mudryk, Jun Cui, Lucas Griffith, Duane D. Johnson, Julie Slaughter   +5 more
wiley   +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