Results 61 to 70 of about 5,521,327 (281)

Comparison of Megavoltage Electron Dosimetry Beams in Radiation Therapy Using Different Protocols [PDF]

Journal of Kerman University of Medical Sciences
Background: International Atomic Energy Agency (IAEA) and American Association of physicist in Medicine (AAPM) have introduced new protocols for dosimetry of electron and photon megavoltage beams and increased them to more than five protocols at the ...
Zahra Jomehzadeh, Ali Jomehzadeh
doaj   +1 more source

Collision of a Positron with the Capture of an Electron from Lithium and the Effect of a Magnetic Field on the Particles Balance

Chemosensors, 2021
The processes of scattering slow positrons with the possible formation of positronium play an important role in the diagnosis of both composite materials, including semiconductor materials, and for the analysis of images obtained by positron tomography ...
Elena V. Orlenko, Alexandr V. Evstafev, Fedor E. Orlenko   +2 more
doaj   +1 more source

Probing the mechanism of electron capture and electron transfer dissociation using tags with variable electron affinity [PDF]

, 2009
Electron capture dissociation (ECD) and electron transfer dissociation (ETD) of doubly protonated electron affinity (EA)-tuned peptides were studied to further illuminate the mechanism of these processes. The model peptide FQpSEEQQQTEDELQDK, containing a
Beauchamp, J. L., Chung, Cheol K., Loo, Joseph A., Ramachandran, Prasanna, Sohn, Chang Ho, Yin, Sheng   +5 more
core   +2 more sources

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

FEBS Letters, EarlyView.
The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang, Grace Du, Charity Yongo‐Luwawa, Angelina Lu, Brett Kinrade, Kim Munro, Karl E. Klose, William D. Lubell, Peter Davies, Shuaiqi Guo   +9 more
wiley   +1 more source

On the Classical Coupling between Gravity and Electromagnetism

Atoms, 2015
Coupling between electromagnetism and gravity, manifested as the distorted Coulomb field of a charge distribution in a gravitational field, has never been observed.
Maria Becker, Adam Caprez, Herman Batelaan   +2 more
doaj   +1 more source

Electron capture in GaAs quantum wells via electron-electron and optic phonon scattering

, 1995
Electron capture times in a separate confinement quantum well (QW) structure with finite electron density are calculated for electron-electron (e-e) and electron-polar optic phonon (e-pop) scattering.
Artaki, Blom,, Blom,, Brum, F. M. Peeters, Hrivnàk,, K. Kálna, M. Moško, Moško,, Sotirelis   +9 more
core   +1 more source

Interplay between circadian and other transcription factors—Implications for cycling transcriptome reprogramming

FEBS Letters, EarlyView.
This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley   +1 more source

Particle Propagation and Electron Transport in Gases

Plasma
In this review, we detail the commonality of mathematical intuitions that underlie three numerical methods used for the quantitative description of electron swarms propagating in a gas under the effect of externally applied electric and/or magnetic ...
Luca Vialetto, Hirotake Sugawara, Savino Longo   +2 more
doaj   +1 more source

Electron-electron interactions in antidot-based Aharonov-Bohm interferometers

, 2009
We present a microscopic picture of quantum transport in quantum antidots in the quantum Hall regime taking electron interactions into account. We discuss the edge state structure, energy level evolution, charge quantization and linear-response ...
G. Kirczenow, I. O. Kulik, I. O. Kulik, I. V. Zozoulenko, J. Davies, S. Ihnatsenka   +5 more
core   +1 more source

Structures of Impurity Defects in Lithium Niobate and Tantalate Derived from Electron Paramagnetic and Electron Nuclear Double Resonance Data [PDF]

, 2021
В. Г. Грачев, G. Malovichko
openalex   +1 more source