Results 31 to 40 of about 18,095 (219)

TEM sample preparation of lithographically patterned permalloy nanostructures on silicon nitride membranes

Beilstein Journal of Nanotechnology
We have prepared ferromagnetic nanostructures intended for the investigation of high-frequency magnetization dynamics in permalloy (Py) nanodisks using Lorentz transmission electron microscopy (LTEM) and electron holography.
Joshua Williams, Michael I. Faley, Joseph Vimal Vas, Peng-Han Lu, Rafal E. Dunin-Borkowski   +4 more
doaj   +1 more source

Electron radiation belt dynamics during magnetic storms and in quiet time

Solar-Terrestrial Physics, 2018
The paper discusses the outer electron belt dynamics, adiabatic and nonadiabatic mechanisms of increases and losses of energetic electrons. Under undisturbed conditions, the outer electron belt gradually empties: in the inner magnetosphere due to ...
Lazutin L.L., Dmitriev A.V., Suvorova A.V.   +2 more
doaj   +1 more source

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

FEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai, Mizuki Seo, Gyath Karadsheh, Fachrur Rizal Mahendra, Máté Á Demény, Ferenc Győry, János András Mótyán, László Fésüs, Endre Kristóf, Rini Arianti   +9 more
wiley   +1 more source

Geometric phase analysis of magnetic skyrmion lattices in Lorentz transmission electron microscopy images

Scientific Reports
Magnetic skyrmions are quasi-particles with a swirling spin texture that form two-dimensional lattices. Skyrmion lattices can exhibit defects in response to geometric constraints, variations of temperature or applied magnetic fields.
Thibaud Denneulin, András Kovács, Raluca Boltje, Nikolai S. Kiselev, Rafal E. Dunin-Borkowski   +4 more
doaj   +1 more source

Kinetic Modeling of Radiation Belt Electrons With Geant4 to Study Energetic Particle Precipitation in Earth's Atmosphere

Earth and Space Science, 2023
We present a new model designed to simulate the process of energetic particle precipitation, a vital coupling mechanism from Earth's magnetosphere to its atmosphere.
G. D. Berland, R. A. Marshall, L. Capannolo, M. P. McCarthy, L. Zheng   +4 more
doaj   +1 more source

Quantum Theory of Scattering of Nonclassical Fields by Free Electrons

Mathematics, 2023
At present, there is no non-perturbative theory of scattering of nonclassical electromagnetic waves by free electrons that describes the scattering process completely with the help of quantum physics.
Dmitry Makarov
doaj   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Electron-Driven Instabilities in the Solar Wind

Frontiers in Astronomy and Space Sciences, 2022
The electrons are an essential particle species in the solar wind. They often exhibit non-equilibrium features in their velocity distribution function.
Daniel Verscharen, B. D. G. Chandran, B. D. G. Chandran, E. Boella, E. Boella, J. Halekas, M. E. Innocenti, V. K. Jagarlamudi, V. K. Jagarlamudi, A. Micera, V. Pierrard, V. Pierrard, Š. Štverák, Š. Štverák, I. Y. Vasko, I. Y. Vasko, M. Velli, P. L. Whittlesey   +17 more
doaj   +1 more source

Organizing the interface—Plasma membrane architecture and receptor dynamics in virus‐cell interactions

FEBS Letters, EarlyView.
Plasma membranes contain dynamic nanoscale domains that organize lipids and receptors. Because viruses operate at similar scales, this architecture shapes early infection steps, including attachment, receptor engagement, and entry. Using influenza A virus and HIV‐1 as examples, we highlight how receptor nanoclusters, multivalent glycan interactions ...
Jan Schlegel, Christian Sieben
wiley   +1 more source

Electron-Electron Interactions in Artificial Graphene

Physical Review Letters, 2012
Recent advances in the creation and modulation of graphene-like systems are introducing a science of "designer Dirac materials". In its original definition, artificial graphene is a man-made nanostructure that consists of identical potential wells (quantum dots) arranged in a adjustable honeycomb lattice in the two-dimensional electron gas.
Rasanen E, Rozzi C A, Pittalis S, Vignale G   +3 more
openaire   +5 more sources