Results 71 to 80 of about 94,084 (338)

Local Transition of Electron Pitch Angle Distribution within Flux Pileup Region behind Dipolarization Front

open access: yesThe Astrophysical Journal
Dipolarization fronts (DFs), earthward-propagating magnetic transients with a strong magnetic field, are important regions favorable for energetic electron acceleration in the magnetotail.
X. N. Xing   +4 more
doaj   +1 more source

The $\alpha$ Dynamo Effects in Laboratory Plasmas

open access: yes, 2001
A concise review of observations of the $\alpha$ dynamo effect in laboratory plasmas is given. Unlike many astrophysical systems, the laboratory pinch plasmas are driven magnetically.
Ji, Hantao, Prager, Stewart C.
core   +2 more sources

Diffusion‐based size determination of solute particles: a method adapted for postsynaptic proteins

open access: yesFEBS Open Bio, EarlyView.
We present a diffusion‐based approach for measuring the size of macromolecules and their complexes, and demonstrate its use on postsynaptic proteins. The method requires fluorescein‐labelled protein samples, a microfluidic device that maintains laminar flow for said samples, a microscope recording the emitted fluorescent signals, and an analytic ...
András László Szabó   +7 more
wiley   +1 more source

Electromotive field in space and astrophysical plasmas. [PDF]

open access: yesRev Mod Plasma Phys
AbstractThe concept of electromotive field appears in various applications in space and astrophysical plasmas. A review is given on the electromotive field highlighting our current understanding of the theoretical picture and the spacecraft observations in interplanetary space.
Bourdin PA, Narita Y.
europepmc   +4 more sources

The Complex Structure of Magnetic Field Discontinuities in the Turbulent Solar Wind

open access: yes, 2015
Using high resolution Cluster satellite observations, we show that the turbulent solar wind is populated by magnetic discontinuities at different scales, going from proton down to electron scales.
Greco, A.   +4 more
core   +1 more source

Diabetes‐induced vascular calcification is associated with low pyrophosphate and its oral supplementation prevents calcification in diabetic mice

open access: yesFEBS Open Bio, EarlyView.
Induction of diabetes in three different mouse strains uniformly resulted in an increase in TNAP activity and a reduction in pyrophosphate (PPi) in the circulation. Inhibition of TNAP restored plasma PPi. Diabetes‐induced calcification in the media layer of the aorta was detected only in the Abcc6−/− strain, which is predisposed to ectopic ...
Krisztina Fülöp   +13 more
wiley   +1 more source

Quasithermal Noise in Magnetized Plasma: Theory and Simulations

open access: yesThe Astrophysical Journal
Quasithermal noise (QTN) spectroscopy has been extensively used as an accurate tool to measure electron density and temperature in unmagnetized space plasmas. The observed spectrum depends on both antenna geometry and plasma kinetic properties.
Xianming Zheng   +9 more
doaj   +1 more source

Simulation of grid morphology’s effect on ion optics and the local electric field

open access: yesAIP Advances, 2022
Electric field ion optics are employed by many scientific instruments for investigating ions, e.g., using time-of-flight mass spectrometers. A common design feature of such instruments is the grounded grid that provides boundaries between regions that ...
Z. Levin, S. Kempf
doaj   +1 more source

On anomalous diffusion in a plasma in velocity space [PDF]

open access: yesPhysics of Plasmas, 2010
The problem of anomalous diffusion in momentum space is considered for plasmalike systems on the basis of a new collision integral, which is appropriate for consideration of the probability transition function (PTF) with long tails in momentum space. The generalized Fokker–Planck equation for description of diffusion (in momentum space) of particles ...
S. A. Trigger   +4 more
openaire   +3 more sources

Functional Connectivity Associations With Markers of Disease Progression in GRN Pathogenic Variant Carriers

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Autosomal dominant progranulin (GRN) pathogenic variants are a genetic cause of frontotemporal lobar degeneration. Though clinical trials for GRN‐related therapies are underway, there is an unmet need for biomarkers that can predict symptom onset and track disease progression.
Taru M. Flagan   +46 more
wiley   +1 more source

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