Results 61 to 70 of about 309 (172)
Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight
Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley +1 more source
An Extreme Stellar Prominence Eruption Observed by LAMOST Time-domain Spectroscopy
We report the detection of an extreme stellar prominence eruption on the M dwarf Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) J044431.62+235627.9, observed through time-domain H α spectroscopy with the LAMOST.
Hong-Peng Lu +8 more
doaj +1 more source
The Solar Particle Acceleration Radiation and Kinetics (SPARK) Mission Concept
Particle acceleration is a fundamental process arising in many astrophysical objects, including active galactic nuclei, black holes, neutron stars, gamma-ray bursts, accretion disks, solar and stellar coronae, and planetary magnetospheres.
Hamish A. S. Reid +59 more
doaj +1 more source
Prediabetic cardiomyopathy is attenuated by hypothalamic PVN oxytocin neuron activation
Abstract figure legend A long‐term high‐fat, high‐fructose diet induces prediabetes with insulin resistance, hyperinsulinaemia, elevated triglycerides and metabolic‐associated steatotic liver disease (MASLD) in male rats. Animals developed prediabetic cardiomyopathy characterized by diastolic dysfunction, interstitial fibrosis and tachycardia ...
Anna Nilsson +7 more
wiley +1 more source
Abstract A new proton radiation belt was identified during the geomagnetic superstorm of 10–11 May 2024. To investigate its origin, we use an MHD‐test particle simulation to model solar energetic proton (SEP) trapping and the evolution of the initial trapped proton population during the storm.
Murong Qin +10 more
wiley +1 more source
Sun-as-a-star analyses serve as a bridge for comparative studies on solar and stellar activities. To investigate the typical Sun-as-a-star H α temporal spectral characteristics in solar eruption source regions, we analyzed five different types of solar ...
Xiaofeng Liu +8 more
doaj +1 more source
Open Magnetic Field Lines Partition Auroral Oval Segments Into Transpolar Arcs
Abstract Transpolar arcs (TPAs) are auroral structures spanning the polar cap. One type appears in conjugate hemispheres and is thought to be located on closed field lines, but how closed flux enters the open polar cap remains debated. We address this using observation and simulation of conjugate TPAs after an interplanetary magnetic field (IMF) By ...
Xin‐Ming Chen +14 more
wiley +1 more source
When Magnetic Field Lines Stretch, Snap, and Expand: A New Look at Solar Flares with L-maps
Understanding the three-dimensional evolution of coronal magnetic fields during solar flares remains challenging due to the lack of direct coronal field measurements.
Maria D. Kazachenko +2 more
doaj +1 more source
Developmental Profiling of Structural and Functional Maturation in Mouse Corpus Callosum
Progressive myelin development in mouse corpus callosum is accompanied by gradual decrease in oligodendrocyte precursor cell density and increase in oligodendrocyte density. Pro‐Capase‐3 is transiently upregulated in oligodendrocyte during postnatal development.
Hayes Johnson +4 more
wiley +1 more source
Detection of Stellar Mass Ejections through Extreme Ultraviolet Spectral Lines
Coronal mass ejections (CMEs), since their first observation in 1971, have been widely acknowledged as the most significant eruptive phenomena and the primary cause of catastrophic space weather events within our solar system.
Zhixun Cheng +7 more
doaj +1 more source

