Results 101 to 110 of about 232,020 (293)

On the Nature of the Bright Front of Solar Coronal Mass Ejections

open access: yesThe Astrophysical Journal
A new explanation has been proposed on the nature of the three-part (bright core, dark cavity, and bright front) structure of coronal mass ejections (CMEs).
Hongqiang Song   +4 more
doaj   +1 more source

A new global non-potential magnetic field model

open access: yesAstronomy & Astrophysics
Context. The potential field source surface (PFSS) model remains the most widely used method for extrapolating the global coronal magnetic field.
Antonio C.   +3 more
doaj   +1 more source

Astrocytic Ketogenesis Protects Central Nervous System Injury via CPT1A Stabilization and Epigenetic Regulation

open access: yesAdvanced Science, EarlyView.
A distinct astrocyte subpopulation, enriched at the lesion border, drives CNS repair through enhanced ketone body metabolism. This process promotes neuronal survival and axonal sparing via CPT1A stabilization and H3K9bhb‐dependent epigenetic reprogramming, positioning astrocytic ketogenesis as a promising therapeutic target for tissue regeneration ...
Dishui Pan   +14 more
wiley   +1 more source

Modeling Time-variable Elemental Abundances in Coronal Loop Simulations

open access: yesThe Astrophysical Journal Letters
Numerous recent X-ray observations of coronal loops in both active regions and solar flares have shown clearly that elemental abundances vary with time.
Jeffrey W. Reep   +3 more
doaj   +1 more source

Scaling Law for the Heating of Solar Coronal Loops

open access: yesThe Astrophysical Journal, 1999
12 pages, 4 figures. Astrophysical Journal Letters (in press)
Dmitruk, P., Gómez, D.O.
openaire   +5 more sources

Targeting Mitochondrial Redox Signaling Promotes Neuroregeneration and Functional Recovery in a Multiple Sclerosis Model

open access: yesAdvanced Science, EarlyView.
Modulation of mitochondrial redox signaling by furapyrrodole activates CYB5R3 and suppresses Notch signaling, unlocking the regenerative potential of endogenous neural progenitor cells. This approach promotes neurogenesis, oligodendrogenesis, and remyelination, thereby improving neuronal function in a mouse model of multiple sclerosis and identifying ...
Yuki Narushima   +18 more
wiley   +1 more source

Magnetic Fields beneath Active Region Coronal Loops

open access: yesThe Astrophysical Journal
We examine the hypothesis that multipolar magnetic fields advected by photospheric granules can contribute to heating the active chromosphere and corona.
Philip G. Judge, L. Kleint, C. Kuckein
doaj   +1 more source

On the Occurrence of Thermal Nonequilibrium in Coronal Loops

open access: yesThe Astrophysical Journal, 2018
Abstract Long-period EUV pulsations, recently discovered to be common in active regions, are understood to be the coronal manifestation of thermal nonequilibrium (TNE). The active regions previously studied with EIT/Solar and Heliospheric Observatory and AIA/SDO indicated that long-period intensity pulsations are localized in only one or
C. Froment   +7 more
openaire   +5 more sources

Temporal evolution of oscillating coronal loops

open access: yes, 2020
Context. Transverse oscillations of coronal structures are currently intensively studied to explore the associated magnetohydrodynamic wave physics and perform seismology of the local medium. Aims.
Goddard, C. R.   +4 more
core   +1 more source

Design, Control, and Clinical Applications of Magnetic Actuation Systems: Challenges and Opportunities

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
This review aims to provide a broad understanding for interdisciplinary researchers in engineering and clinical applications. It addresses the development and control of magnetic actuation systems (MASs) in clinical surgeries and their revolutionary effects in multiple clinical applications.
Yingxin Huo   +3 more
wiley   +1 more source

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