Results 221 to 230 of about 4,703 (266)

Generalizable preconditioning strategies for MAP PET reconstruction using Poisson likelihood. [PDF]

Front Nucl Med
Colombo MN, Paganoni M, Presotto L.
europepmc   +1 more source

Thiol–Michael Addition to a Quinolin‐2‐One–Isoxazole Dye in Cationic CTABr Micellar Media: Insights From Experiments and Theory

ChemistryOpen, Volume 15, Issue 8, August 2026.
We report the reactivity of DQI toward bisulfite in CTABr micelles. CTABr enhances DQI fluorescence and promotes the reaction by increasing the solubility and local concentration. Spectroscopy, NMR, and DFT support the formation of a DQI•SO3H Michael adduct and identify preferred reactive sites. Herein we report an experimental and theoretical study of
Guillermo E. Quintero, Kevin Droguett, Costantino Zazza, Margarita E. Aliaga   +3 more
wiley   +1 more source

Flows of Conformally Coclosed G 2 -Structures with Dilaton. [PDF]

J Geom Anal
Karigiannis S, Picard S, Suan C.
europepmc   +1 more source

Spatial Econometric Analysis of Regional Aging: Evidence From German Counties

Population, Space and Place, Volume 32, Issue 6, August 2026.
ABSTRACT Regional demographic change is widely acknowledged to contribute to economic decline, making an understanding of the determinants of regional population aging crucial for designing effective policy interventions. However, research on these determinants remains limited, particularly at the sub‐national level.
Andree Ehlert
wiley   +1 more source

Adaptive and Robust Control of Diamond Quantum Sensors via Meta‐Learning

Advanced Quantum Technologies, Volume 9, Issue 8, August 2026.
Quantum Meta‐Learning: Meta‐learning frameworks address pulse transferability in NV‐center quantum sensing. By training on diverse tasks that simulate experimental variations, robust surrogate models are created that rapidly adapt to new scenarios without extensive recalibration.
Isabell Jauch, Petru Tighineanu, Patrick Tritschler, Thomas Strohm, Tino Fuchs, Fedor Jelezko   +5 more
wiley   +1 more source

Full Symmetry-Breaking of Electronic and Nuclear Dynamics for Low-Attosecond Resolution of Electronic Chirality. [PDF]

ACS Omega
Xu T, Kong J, Zhou T, Wang Y, Tu J, Azizi A, Kirk SR, Jenkins S.   +7 more
europepmc   +1 more source

Scalable Approximation of the Transformation‐Free Linear Simplicial–Simplicial Regression via Constrained Iterative Reweighted Least Squares

Statistical Analysis and Data Mining: An ASA Data Science Journal, Volume 19, Issue 4, August 2026.
ABSTRACT Simplicial–simplicial regression concerns statistical modeling scenarios in which both the predictors and the responses contain vectors constrained to lie on the simplex. Fiksel et al. introduced a transformation‐free linear regression framework for this setting, wherein the regression coefficients are estimated by minimizing the Kullback ...
Michail Tsagris, Omar Alzeley
wiley   +1 more source

Fast PET reconstruction with variance reduction and prior-aware preconditioning. [PDF]

Front Nucl Med
Ehrhardt MJ, Kereta Z, Schramm G.
europepmc   +1 more source

Equivariant valuations on convex functions. [PDF]

Calc Var Partial Differ Equ
Hofstätter GC, Knoerr J.
europepmc   +1 more source