Results 41 to 50 of about 23,595 (182)

Origin of Low-Energy Excitations in Charge-Ordered Manganites

open access: yes, 2009
The low-energy excitations in the charge-ordered phase of polycrystalline La0.25Ca0.75MnO3 are explored by frequency-domain terahertz spectroscopy. In the frequency range from 4 cm^-1 to 700 cm^-1 (energies 0.4 meV to 90 meV) and at temperatures down to ...
  +16 more
core   +1 more source

Acceptability of black bear management options relative to frequency of sightings and conflicts with humans

open access: yesConservation Science and Practice, EarlyView.
Abstract Estimates of abundance and frequency of human–bear conflicts are commonly used in American black bear (Ursus americanus) management decisions; however, the importance of these measures to residents of bear inhabited areas and their influence on the acceptability of management actions is unclear.
Kevin Cavasos, Neelam C. Poudyal
wiley   +1 more source

Ordering phenomena in quasi one-dimensional organic conductors

open access: yes, 2007
Low-dimensional organic conductors could establish themselves as model systems for the investigation of the physics in reduced dimensions. In the metallic state of a one-dimensional solid, Fermi-liquid theory breaks down and spin and charge degrees of ...
AJ Heeger   +45 more
core   +1 more source

Fairness at Risk: Where Bias Emerges in Machine Learning

open access: yesExpert Systems, Volume 43, Issue 6, June 2026.
ABSTRACT Artificial intelligence and machine learning (ML) now shape decisions in healthcare, finance and security, but they can reproduce historical prejudice and inequality. Bias in training data and in model implementation can amplify harm, especially for racial and gender minorities.
Otavio de Paula Albuquerque   +2 more
wiley   +1 more source

Microwave inductance of thin metal strips

open access: yes, 2010
We have measured the frequency-dependent, complex impedance of thin metal strips in a broad range of microwave frequencies (45~MHz to 20~GHz). The spectra are in good agreement with theoretical predictions of an RCL model. The resistance, inductance, and
Dressel, Martin   +2 more
core   +1 more source

A Signal‐Derived Retrieval Reduces Bias in TEMPO NO2

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 8, 28 April 2026.
Abstract Satellite measurements of NO2 ${\text{NO}}_{2}$ are widely used for investigations of emissions, pollution exposure, and photochemical ozone production. The most commonly available data products compromise on accuracy and spatial resolution in favor of lower compute time.
S. J. Beaudry, R. C. Cohen
wiley   +1 more source

Looking at the superconducting gap of iron pnictides

open access: yes, 2010
THz and infrared spectroscopy is widely utilized to investigate the electrodynamic properties of the novel iron-based superconductors in the normal and superconducting states.
Akrap   +60 more
core   +1 more source

A Concept of a Digital and Traceable Manufacturing Documentation Based on Formalized Process Description Applied on Composite Aircraft Moveable

open access: yesAdvanced Engineering Materials, Volume 28, Issue 7, 8 April 2026.
The documentation of component manufacture has become an essential part of today's production processes, especially for the analysis and optimization of production or component design with regard to structural performance, economic efficiency, and sustainability.
Björn Denker   +4 more
wiley   +1 more source

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