Results 121 to 130 of about 10,141,921 (243)

Quantifying river morphological changes using multi‐satellite observations and in situ measurements

open access: yesEarth Surface Processes and Landforms, Volume 51, Issue 3, March 2026.
This study integrates optical, radar and altimetry satellite data with river gauge measurements to estimate periodically submerged riverbed topography and quantify morphological change. By linking how often water covers the riverbed with water‐level variations, erosion and deposition patterns are mapped across a reach of Jamuna River.
Tek Narayan Bhattarai   +5 more
wiley   +1 more source

Forecasting Natural Gas Prices in Real Time

open access: yesJournal of Applied Econometrics, Volume 41, Issue 2, Page 139-155, March 2026.
ABSTRACT This paper provides a comprehensive analysis of the forecastability of the real price of natural gas in the United States at the monthly frequency considering a universe of models that differ in complexity and economic content. We find that considerable reductions in mean‐squared prediction error relative to a no‐change benchmark can be ...
Christiane Baumeister   +3 more
wiley   +1 more source

Efficient Robust Spontaneous Parametric Down‐Conversion via Detuning Modulated Composite Segments Designs

open access: yesLaser &Photonics Reviews, Volume 20, Issue 5, 6 March 2026.
Detuning modulated composite segmentation (DMCS) enables robust spontaneous parametric down‐conversion with sevenfold improved temperature stability compared to conventional designs, opening new possibilities for stable quantum photon sources. ABSTRACT Spontaneous parametric down conversion (SPDC) holds a pivotal role in quantum physics, facilitating ...
Muhammad Erew   +5 more
wiley   +1 more source

Exploring oxide quasicrystals in internal space

open access: yesActa Crystallographica Section A, Volume 82, Issue 2, Page 87-95, March 2026.
The internal space expansion with variable system size is investigated for three different oxide quasicrystal systems. Patches of 7800, 4800 and 3600 vertices are examined in Ba–Ti–O/Pt(111), Eu–Ti–O/Pd(111) and Sr–Ti–O/Pd(111), respectively. This internal space inspection provides unique structural information for quasicrystalline systems, which goes ...
Sebastian Schenk   +3 more
wiley   +1 more source

Electrophysiological sexual dimorphism as an early risk marker of alcohol use in adolescence: A longitudinal neuroimaging study

open access: yesAddiction, Volume 121, Issue 3, Page 606-616, March 2026.
Abstract Aims To identify the brain activity profiles associated with alcohol consumption and to address its causes. Furthermore, we sought to examine the relationship between these electrophysiological markers and the excitation–inhibition balance, as well as to explore the potential moderating role of sex in these associations.
Alberto del Cerro‐León   +9 more
wiley   +1 more source

Poisson count time series

open access: yesJournal of Time Series Analysis, Volume 47, Issue 2, Page 279-303, March 2026.
This article reviews and compares popular methods, some old and some recent, that produce time series having Poisson marginal distributions. The article begins by narrating ways where time series with Poisson marginal distributions can be produced.
Jiajie Kong, Robert Lund
wiley   +1 more source

Brownian Motion With Partial Resetting Conditioned to Stay Positive

open access: yesBulletin of the London Mathematical Society, Volume 58, Issue 3, March 2026.
Abstract We consider Brownian motion with partial resetting, which has recently attracted a lot of attention in physics as well as the mathematics literature. We analyze the speed of convergence of this process towards stationarity as well as its quasistationary behavior.
Martin Kolb, Achim Wübker
wiley   +1 more source

Stroke and motor outcomes are associated with regional and age‐specific changes in periodic and aperiodic cortical activity

open access: yesExperimental Physiology, Volume 111, Issue 3, Page 1210-1227, 1 March 2026.
Abstract Historically, stroke and ageing have been associated with changes in narrow‐band periodic neuronal activity, but recent work has highlighted the importance of broad‐band aperiodic activity. Aperiodic activity is represented by the 1/f slope of power spectral density generated by cortical activity.
Asher J. Albertson   +9 more
wiley   +1 more source

Aperiodicity in Low Dimensions. [PDF]

open access: yesMaterials (Basel)
Avramov PV, Tian H, Li L.
europepmc   +1 more source

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