Results 141 to 150 of about 41,370 (259)
Nicotinamide Riboside: What It Takes to Incorporate It into RNA
MoleculesNicotinamide is an important functional compound and, in the form of nicotinamide adenine dinucleotide (NAD), is used as a co-factor by protein-based enzymes to catalyze redox reactions.
Felix Wenzek +2 more
doaj +1 more source
Journal of Applied Clinical Medical Physics, Volume 27, Issue 11, November 2026.ABSTRACT Background Diabetes is associated with structural and functional differences in plantar soft tissues, which may be reflected in ultrasound texture patterns. However, existing ultrasound texture studies are limited by single‐scale feature extraction and limited feature‐level interpretability.
Xinlei Ji +6 more
wiley +1 more source
Precise anatomical delineation in ultrasound imaging using echo‐spectral interactive networks
Journal of Applied Clinical Medical Physics, Volume 27, Issue 11, November 2026.Abstract Background Accurate ultrasound (US) segmentation is challenging because speckle noise, low contrast, and ambiguous tissue interfaces often obscure anatomical boundaries. Many conventional CNN‐ and Transformer‐based models operate primarily in the spatial domain and may not explicitly incorporate boundary‐related spectral cues.
Yi Xin +6 more
wiley +1 more source
Journal of Applied Clinical Medical Physics, Volume 27, Issue 11, November 2026.Abstract Background Online adaptive radiotherapy (oART) accounts for anatomical changes by adjusting treatment plans on a daily basis. However, comprehensive plan‐specific quality assurance (QA) is challenging, as pre‐treatment measurements cannot be performed with the patient on the treatment couch.
Julian Niedling +4 more
wiley +1 more source
Regularity Estimates for Fully Nonlinear Dead‐Core Problems With a Hamiltonian Term
Mathematische Nachrichten, Volume 299, Issue 11, Page 3243-3265, November 2026.ABSTRACT In this paper, we present a problem involving fully nonlinear elliptic operators with Hamiltonian, which can present a singularity or degenerate as the gradient approaches the origin. The model studied here, allows the appearance of plateau zones, i.e., unknown regions of the domain in which the non‐negative solutions vanishes.
Rafael R. Costa, Ginaldo S. Sá
wiley +1 more source
Metrikus terek Gromov-Hausdorff-távolsága
, 2018 A Gromov–Hausdorff-távolság a Hausdorff-távolság általánosítása, mely a metrikus terek hasonlóságát méri. A témában fontos szerepet kapnak a kompakt metrikus terek, mivel két kompakt metrikus tér izometriája és az, hogy a Gromov–Hausdorff-távolságuk ...
Beregi-Kovács, Marcell
core
On the Nonnegative Rank of Positive Operators
Mathematische Nachrichten, Volume 299, Issue 11, Page 3689-3704, November 2026.ABSTRACT In this paper, we introduce the concept of a nonnegative rank of a positive operator T:X→Y$T: X\rightarrow Y$ between ordered vector spaces. In the case of nonnegative matrices, our definition agrees with the standard definition of a nonnegative rank.
Roman Drnovšek, Marko Kandić
wiley +1 more source
On Hausdorff spaces via ideals and semi-I-irresolute functions
, 2009 We introduce the notion of semi-I-Hausdorff spaces which is weaker than Hausdorff spaces and independent both I-Hausdorff and quasi-I ...
Noiri, T., Hatir, E.
core
Medical Physics, Volume 53, Issue 11, November 2026.Abstract Background Segment Anything Model (SAM), a prompt‐guided foundation model, exhibits substantial potential for medical image segmentation by incorporating prior knowledge through user‐defined prompts. However, the application of SAM in radiotherapy target delineation remains limited.
Si Wu +6 more
wiley +1 more source