Results 41 to 50 of about 7,741 (135)
Nonsmooth Lagrangian mechanics and variational collision integrators [PDF]
, 2003 Variational techniques are used to analyze the problem of rigid-body dynamics with impacts. The theory of smooth Lagrangian mechanics is extended to a nonsmooth context appropriate for collisions, and it is shown in what sense the system is symplectic ...
Fetecau, R. C. +3 more
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Medical Physics, Volume 53, Issue 2, February 2026.Abstract Background Accurate needle placement is essential for prostate biopsy. Recently, transperineal prostate biopsies are receiving renewed interest due to concern over infection from conventional transrectal biopsies. However, accurate needle placement is more challenging in the transperineal approach than in the transrectal approach due to the ...
Nathan Hoffman +5 more
wiley +1 more source
A Tutorial on Optimal Dynamic Treatment Regimes
Statistics in Medicine, Volume 45, Issue 3-5, February 2026.ABSTRACT A dynamic treatment regime (DTR) is a sequence of treatment decision rules tailored to an individual's evolving status over time. In precision medicine, much focus has been placed on finding an optimal DTR which, if followed by everyone in the population, would yield the best outcome on average; and extensive investigations have been conducted
Chunyu Wang, Brian D. M. Tom
wiley +1 more source
Journal of the London Mathematical Society, Volume 113, Issue 2, February 2026.Abstract We study the distortion of intermediate dimension under supercritical Sobolev mappings and also under quasiconformal or quasisymmetric homeomorphisms. In particular, we extend to the setting of intermediate dimensions both the Gehring–Väisälä theorem on dilatation‐dependent quasiconformal distortion of dimension and Kovalev's theorem on the ...
Jonathan M. Fraser, Jeremy T. Tyson
wiley +1 more source
Coordinating Food Security With Carbon Reduction and Sequestration in China
Food and Energy Security, Volume 15, Issue 1, January/February 2026.This study examines the coupling coordination between food security and agricultural carbon reduction and sequestration in China. Using a coupling coordination model and GTWR analysis, we reveal significant spatiotemporal heterogeneity and identify key drivers for achieving coordinated low‐carbon agricultural development.
Huanhuan He, Hui Wei
wiley +1 more source
A sufficient condition for metric subregularity of set-valued mappings between Asplund spaces based on an outer-coderivative-like variational tool. [PDF]
Heliyon, 2023 Maréchal M.
europepmc +1 more source
Communications on Pure and Applied Analysis, 2003 Paper accepted for the invited session on "Optimal Control" of the 2nd IFAC Workshop on Lagrangian and Hamiltonian Methods in Nonlinear Control, Sevilla, Spain, April 3-5, 2003.
openaire +4 more sources
On the existence of isoperimetric regions in manifolds with nonnegative Ricci curvature and Euclidean volume growth. [PDF]
Calc Var Partial Differ Equ, 2022 Antonelli G +3 more
europepmc +1 more source
Convex optimization algorithms in medical image reconstruction-in the age of AI. [PDF]
Phys Med Biol, 2022 Xu J, Noo F.
europepmc +1 more source
Extension theory for elliptic partial differential operators with pseudodifferential methods
, 2011 This is a short survey on the connection between general extension theories and the study of realizations of elliptic operators A on smooth domains in R^n, n > 1.
Grubb, Gerd
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