Results 51 to 60 of about 5,071 (139)

Energy and Planarity in Boron‐Nitrogen Fulvene Isomers: A Quantum‐Chemical and QSPR Study

open access: yesInternational Journal of Quantum Chemistry, Volume 126, Issue 15, August 5, 2026.
Electronic structure quantum‐chemical computations and Quantitative Structure–Property Relationships (QSPR) regression and classification models are used as complementary tools for classifying unknown boron‐nitrogen fulvene isomers with respect to energy order and planarity.
Gustavo E. Massaccesi   +7 more
wiley   +1 more source

New Approach Methodologies (NAMs) in Alternative Methods: A Comparative Cytotoxicity Analysis of Nanostructured Hydroxyapatite in Adipose Stem Cells Spheroids

open access: yesJournal of Applied Toxicology, Volume 46, Issue 8, Page 2884-2894, August 2026.
ABSTRACT Toxicological assessment is essential in NP approval for health and medical applications. Although 2D cell culture has been widely used, 3D models, especially spheroids, provide better predictive value for toxicological risk assessments since they replicate complex cellular interactions more accurately.
Bianca Montenegro   +5 more
wiley   +1 more source

Nariai-like black holes in light of scale-dependent gravity

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
In this work, we investigate for the first time Nariai-like black hole solutions in four dimensional space time with spherical symmetry in the context of scale-dependent gravity.
Ángel Rincón, Pedro Bargueño
doaj   +1 more source

Radiobiology studies of gold nanoparticle‐enhanced radiosensitization in proton therapy

open access: yesMedical Physics, Volume 53, Issue 8, August 2026.
Abstract Background Approximately 50%$\%$ of newly diagnosed cancer patients worldwide receive radiotherapy, most commonly with X‐rays. Proton therapy has emerged as a promising alternative, offering complementary advantages over conventional X‐rays due to its highly localized energy deposition at the Bragg peak, thereby reducing radiation exposure to ...
N. Fuster‐Martínez   +13 more
wiley   +1 more source

Bidiagonal Decompositions and High‐Accuracy Computations for Newton Collocation Matrices

open access: yesNumerical Linear Algebra with Applications, Volume 33, Issue 4, August 2026.
ABSTRACT We consider a class of collocation matrices A$$ A $$ associated with the Newton basis of the space of polynomials of degree at most n$$ n $$, evaluated at a set of l+1≥n+1$$ l+1\ge n+1 $$ nodes. In the most general setting, we allow n$$ n $$ of these nodes to either coincide with or differ from those defining the Newton basis.
E. Mainar, A. Marco, B. Rubio, R. Viaña
wiley   +1 more source

The role of absorption mechanism on the optimization of processing commercial polymers under high repetition rate femtosecond laser irradiation

open access: yesJournal of the European Optical Society-Rapid Publications
The response of three of the most used commercial polymers (poly(vinyl chloride) (PVC), poly(ethylene terephthalate) (PET) and polypropylene (PP)) under irradiation with high repetition rate (1 kHz–1 MHz) femtosecond (450 fs) multi-pulse (N = 10–1500 ...
Bernabeu Andrés P.   +7 more
doaj   +1 more source

Thermal expansion of FeWO4 (ferberite) and FeWO4:Fe2WO6 (7:1): a comparative X‐ray and neutron diffraction study

open access: yesJournal of Applied Crystallography, Volume 59, Issue 4, Page 1238-1246, August 2026.
Temperature‐dependent single‐crystal X‐ray, powder X‐ray and neutron diffraction measurements reveal the thermal expansion behavior of FeWO4 from 2 to 1123 K. Significant differences between natural ferberite and a FeWO4:Fe2WO6 composite highlight the influence of multiphase and microstructural effects on derived thermoelastic parameters.The thermal ...
O. Fabelo   +5 more
wiley   +1 more source

Recomendaciones Clínicas Basadas en la Evidencia Científica para el Control de la Progresión de la Miopía

open access: yesOptometría Clínica y Ciencias de la Visión
Relevancia: Una herramienta para la toma de decisiones en el gabinete de optometría. Resumen: En este trabajo se establecen recomendaciones clínicas basadas en la evidencia científica para la elección de tratamiento en el control de progresión de miopía.
Sofía Otín Mallada   +2 more
doaj   +1 more source

Calculation of the Structure of a Shrub in the Mandelbrot Set

open access: yesDiscrete Dynamics in Nature and Society, 2011
We calculate the external arguments of the structure of any shrub in the Mandelbrot set. Before calculating, we revise, expand, and clarify some tools useful for this paper: harmonics, pseudoharmonics, the concept of structure, the structure of a shrub ...
G. Pastor   +5 more
doaj   +1 more source

Outstanding Transmittance through Over-Wavelength-Thick Optical Plasmonic Microcavities [PDF]

open access: yesEPJ Web of Conferences
This work models light transmission through metal-dielectric-metal microcavities supporting Coupled Surface Plasmons (CSP). An extended Fabry-Pérot formula reveals two plasmonic resonances that merge beyond a critical cavity thickness.
Doval Alejandro   +3 more
doaj   +1 more source

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