Results 121 to 130 of about 2,976 (195)

Double-bowtie filter design for pediatric spectral CT imaging: A fan beam simulation study. [PDF]

open access: yesMed Phys
Abstract Background Despite concerns about radiation dose in pediatric patients, computed tomography (CT) remains a first‐line imaging modality for children. Spectral CT provides additional diagnostic information that benefits pediatric imaging. However, most existing spectral CT systems are primarily optimized for adult patients.
Ge Y   +9 more
europepmc   +2 more sources

Optimal Experimental Design for Fast and Accurate Relaxation Time Measurements in Magnetic Resonance

open access: yesMagnetic Resonance in Chemistry, Volume 64, Issue 12, Page 1001-1012, December 2026.
We apply D‐optimal experimental design to relaxation constant estimation in NMR relaxometry. The resulting sampling schedules concentrate measurements where the signal is most sensitive to the relaxation constant. Compared with conventional linear or logarithmic spacing, D‐optimal designs achieve better estimation accuracy and precision with fewer ...
Natalie E. Klein   +4 more
wiley   +1 more source

Deep Learning Improves Robustness of Voxelwise Kinetic Modeling for Hyperpolarized Carbon‐13 MRI

open access: yesMagnetic Resonance in Medicine, Volume 96, Issue 6, Page 2857-2869, December 2026.
ABSTRACT Purpose To evaluate whether deep learning improves the robustness of voxelwise kinetic parameter estimation from hyperpolarized (HP) 13C MRI compared with nonlinear least‐squares (NLLS) fitting. Methods A hybrid neural network (NN) was trained on synthetic pyruvate/lactate time courses generated from an open‐system two‐compartment HP 13C ...
Kofi Deh   +5 more
wiley   +1 more source

Disulfide bond status links the open and closed conformations of prothrombin

open access: yesProtein Science, Volume 35, Issue 12, December 2026.
Abstract Emerging evidence indicates that structural changes in proteins can influence autoimmune recognition. Antibodies targeting the central blood coagulation protein, prothrombin, are frequently detected in patients with the autoimmune disorder, antiphospholipid syndrome.
Mark Schreuder   +4 more
wiley   +1 more source

Genome evolution of Mediterranean olives following DNA repeats diversification

open access: yesThe Plant Genome, Volume 19, Issue 4, December 2026.
Abstract The olive tree (Olea europaea L. subsp. europaea) is one of the most representative perennial crops of the Mediterranean Basin, yet the genomic processes underlying its domestication and diversification remain poorly understood. Here, we investigated repeatome variation across 20 accessions, including 11 wild oleasters and nine cultivated ...
Flavia Mascagni   +11 more
wiley   +1 more source

Bioremediation of Chlorpyrifos Contaminated Soil: Microcosm Investigation and 16S rRNA Gene Amplicon Sequencing

open access: yesEnvironmental Microbiology Reports, Volume 18, Issue 6, December 2026.
This study characterized biofilm‐forming bacterial strains Pseudomonas aeruginosa MD3 and Bacillus toyonensis LD07 immobilized on sugarcane bagasse. This highly porous bio‐product demonstrated exceptional phenotypic plasticity and robust bioremediation efficacy, achieving 99% chlorpyrifos degradation at 4500 ppm.
Le Thi Nhi‐Cong   +6 more
wiley   +1 more source

JKO schemes with general transport costs. [PDF]

open access: yesCalc Var Partial Differ Equ
Rankin C, Wong TL.
europepmc   +1 more source

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