Results 21 to 30 of about 1,217,265 (323)

Two-dimensional electron liquid state at LaAlO3-SrTiO3 interfaces

open access: yes, 2010
Using tunneling spectroscopy we have measured the spectral density of states of the mobile, two-dimensional electron system generated at the LaAlO3-SrTiO3 interface.
C. Richter   +12 more
core   +1 more source

Field emission microscopy pattern of a single-crystal diamond needle under ultrafast laser illumination

open access: yesNew Journal of Physics, 2019
We report herein on the spatial beam properties of a field emission electron source based on a single-crystal diamond needle illuminated by ultrashort light pulses. We show that the increasing of the laser intensity strongly modifies the emission pattern,
M H Mammez   +9 more
doaj   +1 more source

Nonequilibrium electron spectroscopy of Luttinger liquids

open access: yes, 2009
Understanding the effects of nonequilibrium on strongly interacting quantum systems is a challenging problem in condensed matter physics. In dimensions greater than one, interacting electrons can often be understood within Fermi-liquid theory where low ...
B. Rosenow   +3 more
core   +1 more source

NMR and Electron Microscopy Studies of Soybean Seeds, Soybean Proteins, and Oil for Improved Utilization in Foods and Feeds [PDF]

open access: yes, 2011
NMR, NIR and EM techniques are suitable methods of measuring protein and oil content in soybeans. After completion of a measurement with NMR or NIR, a soybean sample could be either replanted or consummated.
Doina M. Costescu, I. C. Baianu
core   +2 more sources

Overhauser enhanced liquid state nuclear magnetic resonance spectroscopy in one and two dimensions

open access: yesNature Communications
Nuclear magnetic resonance (NMR) is fundamental in the natural sciences, from chemical analysis and structural biology, to medicine and physics. Despite its enormous achievements, one of its most severe limitations is the low sensitivity, which arises ...
Marcel Levien   +10 more
doaj   +1 more source

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

open access: yesFEBS 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   +9 more
wiley   +1 more source

Plasmon electron energy-gain spectroscopy

open access: yesNew Journal of Physics, 2013
We explore multiple energy losses and gains undergone by swift electrons interacting with resonant evanescent light fields. We predict remarkably high gain probabilities in the range of a percentage when the electrons are passing near a resonant ...
A Asenjo-Garcia, F J García de Abajo
doaj   +1 more source

Electron emission from bromouracil and uracil induced by protons and radiosensitization

open access: yesNew Journal of Physics, 2022
Absolute double differential cross sections (DDCS) of electrons emitted from uracil and 5-bromouracil (BrU) in collisions with protons of energy 200 keV have been measured for various forward and backward emission angles over wide range of electron ...
Madhusree Roy Chowdhury   +5 more
doaj   +1 more source

A time-dependent Schr\"odinger equation for molecular core-hole dynamics [PDF]

open access: yes, 2017
X-ray spectroscopy is an important tool for the investigation of matter. X rays primarily interact with inner-shell electrons creating core (inner-shell) holes that will decay on the time scale of attoseconds to few femtoseconds through electron ...
Picón, A.
core   +2 more sources

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

open access: yesFEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source

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