Results 21 to 30 of about 1,150,056 (199)

Are the photospheric sunspots magnetically force-free in nature? [PDF]

open access: yes, 2010
In a force-free magnetic field, there is no interaction of field and the plasma in the surrounding atmosphere i.e., electric currents are aligned with the magnetic field, giving rise to zero Lorentz force. The computation of many magnetic parameters like
Chandrasekhar   +7 more
core   +1 more source

Overcoming Antimicrobial Resistance in Bacteria Using Bioactive Magnetic Nanoparticles and Pulsed Electromagnetic Fields

open access: yesFrontiers in Microbiology, 2018
Nisin is a known bacteriocin, which exhibits a wide spectrum of antimicrobial activity, while commonly being inefficient against Gram-negative bacteria.
Vitalij Novickij   +8 more
doaj   +1 more source

Jet Collimation by Small-Scale Magnetic Fields [PDF]

open access: yes, 2001
A popular model for jet collimation is associated with the presence of a large-scale and predominantly toroidal magnetic field originating from the central engine (a star, a black hole, or an accretion disk). Besides the problem of how such a large-scale
Benford G.   +17 more
core   +3 more sources

The Galactic distribution of magnetic fields in molecular clouds and HII regions [PDF]

open access: yes, 2006
{Magnetic fields exist on all scales in our Galaxy. There is a controversy about whether the magnetic fields in molecular clouds are preserved from the permeated magnetic fields in the interstellar medium (ISM) during cloud formation. We investigate this
Han, J. L., Zhang, J. S.
core   +3 more sources

Measurement of Transient Permeability of Sp2/0 Myeloma Cells: Flow Cytometric Study

open access: yesMeasurement Science Review, 2016
Electroporation is an electric field induced phenomenon occurring when the permeability of the cell membrane is increased due to the excess of critical transmembrane potential.
Novickij Vitalij   +8 more
doaj   +1 more source

Induction of Different Sensitization Patterns of MRSA to Antibiotics Using Electroporation

open access: yesMolecules, 2018
Treatment of bacteria-associated infections is complicated and antibiotic treatment alone is often inadequate to overcome biofilm infections. Physical methods allow overcoming this problem and propose solutions that are non-dependent on drug resistance ...
Vitalij Novickij   +7 more
doaj   +1 more source

Cosmic-ray driven dynamo in galaxies [PDF]

open access: yes, 2011
We present recent developments of global galactic-scale numerical models of the Cosmic Ray (CR) driven dynamo, which was originally proposed by Parker (1992).
Allen   +13 more
core   +2 more sources

Cosmological magnetic fields [PDF]

open access: yesJournal of Physics: Conference Series, 2009
Magnetic fields are observed on nearly all scales in the universe, from stars and galaxies upto galaxy clusters and even beyond. The origin of cosmic magnetic fields is still an open question, however a large class of models puts its origin in the very early universe. A magnetic dynamo amplifying an initial seed magnetic field could explain the present
openaire   +2 more sources

Open Magnetic Fields in the Martian Magnetosphere Revealing Dipole-like Intrinsic Magnetic Fields at Mars

open access: yesThe Astrophysical Journal Letters, 2023
Mars’s magnetosphere is hybrid, having contributions from both an induced magnetosphere like Venus and the localized crustal magnetic fields. However, the planetary fields also include large-scale, more global components.
Shaosui Xu   +12 more
doaj   +1 more source

Three-magnetic fields

open access: yes, 2012
A completely new mechanism to generate the observed amount of large-scale cosmological magnetic fields is introduced in the context of three-form inflation.
Koivisto, Tomi S., Urban, Federico R.
core   +1 more source

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