Results 31 to 40 of about 3,441,575 (300)

Magnetic Field Amplification and Reconstruction in Rotating Astrophysical Plasmas: Verifying the Roles of α and β in Dynamo Action

Particles
We investigate the α and β effects in a rotating spherical plasma system relevant to astrophysical contexts. In particular, we focus on how kinetic and magnetic (current) helicities influence the magnetic diffusivity β.
Kiwan Park
doaj   +1 more source

Effects of M dwarf magnetic fields on potentially habitable planets [PDF]

, 2013
A.A.V. acknowledges support from the Royal Astronomical Society through a post-doctoral fellowship. J.M. acknowledges support from a fellowship of the Alexander von Humboldt foundation. P.L. acknowledges funding from a STFC scholarship.
Morin, J., J.-F. Donati, Russell, A.J.B., P. Lang, Donati, J. -F., Jardine, M., A. A. Vidotto, M. Jardine, Morin, Julien, Donati, J.-F., Lang, P., Vidotto, A. A., Russell, A. J. B., Donati, J., Vidotto, A., A. J. B. Russell, J. Morin, Vidotto, A.A., Russell, A., J. -f. Donati   +19 more
core   +1 more source

Microbiome‐blood–brain barrier interactions in aging — mechanisms and therapeutic potential

FEBS Letters, EarlyView.
Aging reshapes the gut microbiome (↓SCFA‐producing commensals; ↑pro‐inflammatory outputs), shifting circulating metabolites (↓SCFAs; ↑LPS, ↑TMAO, ↑PAA) that act at the BBB to increase nonspecific transcytosis, alter transport, and promote astrocyte reactivity, heightening brain vulnerability.
Daniel Cuervo‐Zanatta, Hari Baskar Balasubramanian, Amir Pasokh, Marietta Zille   +3 more
wiley   +1 more source

Diamond as a magnetic field calibration probe [PDF]

, 2004
An optical method is proposed for the calibration of pulsed magnetic fields using photoluminescence from synthetic diamond. Generally, the pulsed magnetic field profile is reconstructed by measuring the pick-up voltage in a small coil with an effective ...
Stesmans, A, Iakoubovskii, K, Hayne, M, Moshchalkov, V V, Maes, J   +4 more
core   +4 more sources

Fullerene in a Magnetic Field

Crystals, 2022
The manuscript presents a trajectory method for describing the rotations of surface crystals such as fullerenes, nanotubes, and nanotori. This method does not require the implementation of successive rotations of the considered molecular structures around the axes of the selected basis.
Alexandr Lun-Fu, Vladislav Borodin, Mikhail Bubenchikov, Alexey Bubenchikov, Dmitriy Mamontov   +4 more
openaire   +3 more sources

Cosmic magnetic fields from density perturbations

, 2023
reservedMagnetic fields are observed on nearly all scales in the Universe, from stars and galaxies up to galaxy clusters and even beyond. The origin of cosmic magnetic fields remains an open question; however, a large class of models puts its origin in ...
PAVONE, ELISABETTA
core  

Emerging experimental and computational methods for studying redox‐regulated structural transitions

FEBS Letters, EarlyView.
Redox reactions can reshape proteins and alter how they behave in cells, with important consequences for health and disease. This review explores emerging experimental and computational approaches for discovering these redox‐sensitive protein switches, revealing their structural effects, and predicting their behavior, opening new opportunities to ...
Tasneem Rass, Dana Reichmann, Gábor Erdős   +2 more
wiley   +1 more source

Synergistic perspectives—How single‐molecule biophysics complement biochemical understanding

FEBS Letters, EarlyView.
In this review, we discuss how ensemble biochemistry and single‐molecule approaches are complementary, outline commonly used single‐molecule techniques, and illustrate their relevance through two representative case studies: chromatin organization by SMC complexes and pathway choice during DNA double‐strand break repair.
Sara De Bragança, Eline L. Jansen, Jorine M. Eeftens   +2 more
wiley   +1 more source

A Large Magnetic Hump in the VLISM Observed by Voyager 1 in 2020–2022

The Astrophysical Journal, 2023
Voyager 1 has been moving through the very local interstellar medium (VLISM) for approximately one solar cycle, from 122.58 au on 2012/DOY 238 (August 25) to 158.5 au on 2023.0. Previously, an abrupt increase (“jump”) in the magnetic field strength B and
L. F. Burlaga, N. Pogorelov, L. K. Jian, J. Park, A. Szabo, N. F. Ness   +5 more
doaj   +1 more source

Oscillating magnetic field disrupts magnetic orientation in Zebra finches, Taeniopygia guttata [PDF]

, 2009
Background Zebra finches can be trained to use the geomagnetic field as a directional cue for short distance orientation. The physical mechanisms underlying the primary processes of magnetoreception are, however, largely unknown.
Wiltschko, Wolfgang, Voss Joe, Tim Ruploh, Ruploh, Tim, Nina Keary, Wolfgang Wiltschko, Keary, Nina, Thalau, Peter, Wiltschko, Roswitha, Ruploh Tim, Voss, Joe, Wiltschko, Wolfgang (Prof. Dr.), Joe Voss, Roswitha Wiltschko, Peter Thalau, Wiltschko Roswitha, Bischof Hans-Joachim, Thalau Peter, Wiltschko Wolfgang, Keary Nina, Hans-Joachim Bischof, Bischof, Hans-Joachim   +21 more
core   +1 more source