Results 161 to 170 of about 141,500 (254)

Denoising framework for X‐ray absorption spectroscopy data

Journal of Synchrotron Radiation, Volume 33, Issue 3, Page 658-682, May 2026.
We introduce a high‐performance Python‐based XAS denoising package called XASDenoise, which implements our newly developed stationarity warping method and advanced denoising techniques based on Gaussian process regression and a convolutional autoencoder.X‐ray absorption spectroscopy (XAS) is a powerful tool for probing the structural and electronic ...
Tomas Aidukas, Ilnura Usmanova, Benjamín Béjar Haro, Maarten Nachtegaal, Adam H. Clark   +4 more
wiley   +1 more source

Compact free‐electron lasers as enablers of beyond‐6G and quantum communication systems

Journal of Synchrotron Radiation, Volume 33, Issue 3, Page 818-824, May 2026.
Compact free‐electron lasers are investigated as scalable, high‐coherence light sources capable of enabling beyond‐6G and quantum communication systems through ultrafast data rates, wide spectral tunability, and high signal‐to‐noise performance.Free‐electron lasers (FELs) are disruptive light sources that offer ultrashort pulses, wide spectral ...
Thair Abdulkareem Khalil Al-Aish, Hanady Amjed Kamil   +1 more
wiley   +1 more source

Regional cerebellar structural deficits distinguish psychostimulant‐free ADHD youth with and without familial risk for bipolar I disorder: a cross‐sectional morphometric analysis

Journal of Child Psychology and Psychiatry, Volume 67, Issue 5, Page 766-776, May 2026.
Background Although attention‐deficit/hyperactivity disorder (ADHD) with familial risk for bipolar I disorder (BD) may represent a more severe illness conferring greater risk for developing BD, associated neurostructural substrates remain poorly understood.
Biqiu Tang, L. Rodrigo Patino, Wenjing Zhang, Su Lui, Melissa P. DelBello, Robert K. McNamara   +5 more
wiley   +1 more source

N,N‐Dimethyltryptamine (DMT) Acutely Exposed to Mouse Ventral Tegmental Area Ih‐Negative Neurons Alters the Firing Rate and Conductance in a Sex‐Dependent Manner

Journal of Neurochemistry, Volume 170, Issue 5, May 2026.
Depression and substance use disorder are difficult to treat, prompting interest in psychedelics like DMT, though its neural mechanisms remain unclear. This ex vivo study examined acute DMT effects on electrophysiology in male and female Ih‐negative neurons of the mouse ventral tegmental area (VTA). Low‐dose DMT (500 nM) had no effect, whereas a higher
Jannik Nicklas Eliasen, Amir Rezagholizadeh, Helene Påbøl Jacobsen, Kristi A. Kohlmeier   +3 more
wiley   +1 more source

Maximally dissipative and self‐adjoint extensions of K$K$‐invariant operators

Bulletin of the London Mathematical Society, Volume 58, Issue 5, May 2026.
Abstract We introduce the notion of K$K$‐invariant operators, S$S$, in a Hilbert space, with respect to a bounded and boundedly invertible operator K$K$ defined via K∗SK=S$K^*SK=S$. Conditions such that self‐adjoint and maximally dissipative extensions of K$K$‐invariant symmetric operators are also K$K$‐invariant are investigated.
Christoph Fischbacher, Bart Rosenzweig, Jonathan Stanfill   +2 more
wiley   +1 more source

Littlewood, Paley and almost‐orthogonality: a theory well ahead of its time

Journal of the London Mathematical Society, Volume 113, Issue 5, May 2026.
Abstract The classic paper by Littlewood and Paley [J. Lond. Math. Soc. (1), 6 (1931), 230–233] marked the birth of Littlewood–Paley theory. We discuss this paper and its impact from a historical perspective, include an outline of the results in the paper and their subsequent significance in relation to developments over the last century, and set them ...
Anthony Carbery
wiley   +1 more source

Phase Modulation for Quadruplex Channels of Arbitrary Orthogonal Polarization States via Bilayer Metasurfaces. [PDF]

Nanophotonics
Wang W, Wang J, Wu Q, Lin J, Jin P, Liu S, Guo Z, Zhou K.   +7 more
europepmc   +1 more source

Which singular tangent bundles are isomorphic?

Journal of the London Mathematical Society, Volume 113, Issue 5, May 2026.
Abstract Logarithmic and b$ b$‐tangent bundles provide a versatile framework for addressing singularities in geometry. Introduced by Deligne and Melrose, these modified bundles resolve singularities by reframing singular vector fields as well‐behaved sections of these singular bundles.
Eva Miranda, Pablo Nicolás
wiley   +1 more source

A universal and versatile terahertz field manipulation mechanism by manipulating near-infrared phases with a dislocation scheme. [PDF]

Nat Commun
Lin Q, Feng F, Zeng X, Cai Y, He W, Wang C, Wu K, Lu X, Zhong H, Xu S, Li J, Yuan X.   +11 more
europepmc   +1 more source

Strong well‐posedness for a stochastic fluid‐rigid body system via stochastic maximal regularity

Journal of the London Mathematical Society, Volume 113, Issue 5, May 2026.
Abstract We develop a rigorous analytical framework for a coupled stochastic fluid‐rigid body system in R3$\mathbb {R}^3$. The model describes the motion of a rigid ball immersed in an incompressible Newtonian fluid subjected to both additive noise in the fluid and body equations and transport‐type noise in the fluid equation. We establish local strong
Felix Brandt, Arnab Roy
wiley   +1 more source