Results 151 to 160 of about 15,427 (184)

Segmentation and Tracking of Eruptive Solar Phenomena With Convolutional Neural Networks

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 1, February 2026.
Abstract Solar eruptive events are complex phenomena, which most often include coronal mass ejections (CME), CME‐driven compressive and shock waves, flares, and filament eruptions. CMEs are large eruptions of magnetized plasma from the Sun's outer atmosphere or corona, that propagate outward into the interplanetary space.
Oleg Stepanyuk, Kamen Kozarev
wiley   +1 more source

Addressing Known Challenges in Solar Flare Forecasting I: Limb‐Flare Prediction With a 4π Full‐Heliosphere Framework

Space Weather, Volume 24, Issue 2, February 2026.
Abstract A demonstrated failure mode for operational solar flare forecasting is the inability to forecast flares that occur near, or just beyond, the solar limb. To address this shortcoming, we develop a “4π $4{\uppi }$” full‐heliosphere event forecasting framework and evaluate its statistical classification ability against this specific challenge.
K. D. Leka, Eric L. Wagner, Lisa Upton, Bibhuti Kumar Jha, Kiran Jain, Sara Petty   +5 more
wiley   +1 more source

Ensemble Methods for History Matching and Uncertainty Quantification With a Watershed Model

JAWRA Journal of the American Water Resources Association, Volume 62, Issue 1, February 2026.
ABSTRACT History matching of large hydrologic models is challenging due to data sparsity and non‐unique process combinations (and associated parameters) that can produce similar model predictions. We develop an ensemble‐based history matching (and uncertainty quantification) approach using an iterative ensemble smoother (iES) method for three cutouts ...
Michael N. Fienen, Andrew J. Long, Katherine H. Markovich, Adel E. Haj, Matthew I. Barker   +4 more
wiley   +1 more source

Disruption of ATP Synthase Spatiotemporal Organization, Ca2+ Dynamics, and Contractile Function in Senescent Cardiomyocytes

Aging Cell, Volume 25, Issue 2, February 2026.
Enhanced ATP hydrolysis, ΔΨm flickering, and destabilized ATP synthase dimers collectively reduce ATP availability in senescent cardiomyocytes. This energy deficit is associated with disrupted Ca2⁺ dynamics and contractility. ABSTRACT Heart disease is the leading cause of death in the elderly population.
Silke Morris, Nico Marx, Gonzalo Barrientos, Isidora Molina‐Riquelme, Frank Schmelter, Hugo E. Verdejo, Stefan Peischard, Guiscard Seebohm, Verónica Eisner, Karin B. Busch   +9 more
wiley   +1 more source

Mathematical Modeling of Physical Reality: From Numbers to Fractals, Quantum Mechanics and the Standard Model. [PDF]

Entropy (Basel)
Kupczynski M.
europepmc   +1 more source

Visual acuity outcomes up to 12 years and risk factors for visual impairment in a national cohort of extremely preterm born children – The Extremely Preterm Infants in Sweden Study (EXPRESS)

Acta Ophthalmologica, Volume 104, Issue 1, Page 65-74, February 2026.
Abstract Purpose The Extremely Preterm Infants in Sweden Study (EXPRESS) followed a national cohort of extremely preterm born (EPT, i.e. <27 weeks) children until 12 years of age. This study aimed to investigate the longitudinal development of visual acuity (VA) in children born EPT, explore the predictive value of early visual assessments, and ...
Despoina Tsamadou, Karin Källén, Abbas Al‐Hawasi, Ann Hellström, Gerd Holmström, Fatima Pedrosa‐Domellöf, Kristina Tornqvist, Ulrika Kjellström, Lisa B. Thorell, Lena Hellström‐Westas, Andreas Ohlin, Ulrika Ådén, Kerstin Hellgren   +12 more
wiley   +1 more source

Looking Back to 1991 Economic Forecasting: Introducing Cointegration

Oxford Bulletin of Economics and Statistics, Volume 88, Issue 1, Page 1-21, February 2026.
ABSTRACT Originally written in 1991 to advance the formal analysis of macroeconomic forecasting models and methods following the development of cointegration, alternative forecasting devices, conditional and unconditional forecasts, and data accuracy are considered.
David F. Hendry
wiley   +1 more source

Tin—Tin π Bonding as a Conduit for Alkali‐Metal Reduction

Angewandte Chemie, Volume 138, Issue 5, 28 January 2026.
Reactions of the doubly reduced distannynes, [Ar′SnSnAr′M2], (Ar′ = C6H3‐2,6‐Dipp; M ═ ′Li, Na, K), with the successively heavier alkali metals (M) result in reduction of M, which is proposed to occur via a suitably disposed π* SOMO of the putative radical anions, [Ar′SnSnAr′M2]•−.
Agustín Morales, Kyle G. Pearce, Louis J. Morris, Michael S. Hill, Claire L. McMullin, Emma Richards   +5 more
wiley   +2 more sources

Hypergeometric motives from Euler integral representations

Journal of the London Mathematical Society, Volume 113, Issue 2, February 2026.
Abstract We revisit certain one‐parameter families of affine covers arising naturally from Euler's integral representation of hypergeometric functions. We introduce a partial compactification of this family. We show that the zeta function of the fibers in the family can be written as an explicit product of L$L$‐series attached to nondegenerate ...
Tyler L. Kelly, John Voight
wiley   +1 more source

Rigidity of anti‐de Sitter (2+1)‐spacetimes with convex boundary near the Fuchsian locus

Journal of the London Mathematical Society, Volume 113, Issue 2, February 2026.
Abstract We prove that globally hyperbolic compact anti‐de Sitter (2+1)‐spacetimes with a strictly convex spacelike boundary that is either smooth or polyhedral and whose holonomy is close to Fuchsian are determined by the induced metric on the boundary.
Roman Prosanov, Jean‐Marc Schlenker
wiley   +1 more source