Results 101 to 110 of about 133,599 (236)

Semiclassical inequalities for Dirichlet and Neumann Laplacians on convex domains

Communications on Pure and Applied Mathematics, Volume 79, Issue 3, Page 762-822, March 2026.
Abstract We are interested in inequalities that bound the Riesz means of the eigenvalues of the Dirichlet and Neumann Laplacians in terms of their semiclassical counterpart. We show that the classical inequalities of Berezin–Li–Yau and Kröger, valid for Riesz exponents γ≥1$\gamma \ge 1$, extend to certain values γ<1$\gamma <1$, provided the underlying ...
Rupert L. Frank, Simon Larson
wiley   +1 more source

Applying Quantum Cascade Laser Spectroscopy in Plasma Diagnostics

Photonics, 2016
The considerably higher power and wider frequency coverage available from quantum cascade lasers (QCLs) in comparison to lead salt diode lasers has led to substantial advances when QCLs are used in pure and applied infrared spectroscopy.
Jürgen Röpcke, Paul B. Davies, Stephan Hamann, Mario Hannemann, Norbert Lang, Jean-Pierre H. van Helden   +5 more
doaj   +1 more source

Multi‐Frame Image Registration for Automated Ventricular Function Assessment in Single Breath‐Hold Cine MRI Using Limited Labels

Magnetic Resonance in Medicine, Volume 95, Issue 3, Page 1762-1777, March 2026.
ABSTRACT Purpose This study aims to develop an automated framework for operator‐independent assessment of cardiac ventricular function from highly accelerated images. Methods We introduce a deep learning framework that generates reliable ventricular volumetric parameters and strain measures from fully sampled and retrospectively accelerated MR images ...
Aya Ghoul, Paxstan Cassal Paulson, Andreas Lingg, Patrick Krumm, Kerstin Hammernik, Daniel Rueckert, Sergios Gatidis, Thomas Küstner   +7 more
wiley   +1 more source

MRI of Neurogenic Human Motor Units Following Poliomyelitis

Muscle &Nerve, Volume 73, Issue 3, Page 403-411, March 2026.
ABSTRACT Introduction/Aims Surviving motor units in neurogenic diseases demonstrate collateral reinnervation. Scanning electromyography (EMG) reveals normal motor unit corridor length, but with “silent regions,” suggesting that reinnervation does not result in increased motor unit size but may increase motor unit complexity.
Stuart Maitland, Matthew Birkbeck, Ian Schofield, Lawrence Best, James Scott, Andrew Blamire, Roger G. Whittaker   +6 more
wiley   +1 more source

Adaptive blind image deblurring and denoising

Scandinavian Journal of Statistics, Volume 53, Issue 1, Page 413-441, March 2026.
Abstract Blind image deblurring aims to reconstruct the original image from its blurred version without knowing the blurring mechanism. This is a challenging ill‐posed problem because there are infinitely many possible solutions. The ill‐posedness is further exacerbated if the blurring mechanism depends on the pixel location.
Yicheng Kang, Anik Roy, Partha Sarathi Mukherjee   +2 more
wiley   +1 more source

Structural Differences at Quadruplex‐Duplex Interfaces Enable Ligand‐Induced Topological Transitions

Advanced Science
Quadruplex‐duplex (QD) junctions, which represent unique structural motifs of both biological and technological significance, have been shown to constitute high‐affinity binding sites for various ligands.
Yoanes Maria Vianney, Dorothea Dierks, Klaus Weisz   +2 more
doaj   +1 more source

Entropy rigidity for cusped Hitchin representations

Journal of Topology, Volume 19, Issue 1, March 2026.
Abstract We establish an entropy rigidity theorem for Hitchin representations of geometrically finite Fuchsian groups which generalizes a theorem of Potrie and Sambarino for Hitchin representations of closed surface groups. In the process, we introduce the class of (1,1,2)‐hypertransverse groups and show for such a group that the Hausdorff dimension of
Richard Canary, Tengren Zhang, Andrew Zimmer   +2 more
wiley   +1 more source

Graph‐guided frequency‐enhanced state space network for 3D spine segmentation from MR images

Journal of Applied Clinical Medical Physics, Volume 27, Issue 2, February 2026.
Abstract Background Accurate spinal MRI segmentation is essential for computer‐aided diagnosis of spinal diseases. Existing methods have limitations in global semantic modeling and boundary delineation due to complex anatomy and imaging artifacts. Purpose Our work aimed to propose a novel Graph‐Guided Frequency‐Enhanced State Space Network (GF‐SSNet ...
Linghui Hong, Zhengchao Zhou, Wanbo Xu, Pingping Wang, Benzheng Wei   +4 more
wiley   +1 more source

A Modular Biosensor Platform for the Detection of Plastic Monomers and the Engineering of Promiscuous Amidases Toward Challenging Substrates

Advanced Science
Stable chemical bonds dictate the properties of industrial chemicals and materials. Particularly the persistence of synthetic polymers like polyurethanes (PUs) contributes to the global issues of waste accumulation and environmental pollution.
Ina Somvilla, Hannah Meier, Florian Oehlschläger, Hannes Meinert, Lena Koch, Patrick Ihrle, Katharina M. Mehnert, Morten Flieger, Jonas Boß, Marco Seifert, Dominique Böttcher, Uwe T. Bornscheuer, Thomas Bayer   +12 more
doaj   +1 more source

The Hausdorff dimension of the visible sets of connected compact sets

, 2003
For a compact subset K of the plane and a point x, we define the visible part of K from x to be the set K_x={u\in K : [x,u]\cap K={u}}. (Here [x,u] denotes the closed line segment joining x to u.) In this paper, we use energies to show that if K is a ...
O'Neil, Toby C
core   +4 more sources