Results 121 to 130 of about 3,094 (216)

scMOG: A graph neural network method for regulatory relationship‐preserving single‐cell multi‐omics integration

Quantitative Biology, Volume 14, Issue 3, September 2026.
Abstract Single‐cell multi‐omics sequencing technology provides a powerful tool for studying cellular heterogeneity. However, beyond the challenges of sparsity, heterogeneity, and dimensionality differences, a critical challenge in multi‐omics data integration lies in preserving the true regulatory relationships among molecular features.
Yucheng Lu, Xun Zhang, Hongwei Li
wiley   +1 more source

Shining Light on Quantum Materials: Interplay of Symmetry, Quantum Geometry, and Nonlinear Photocurrents

Advanced Quantum Technologies, Volume 9, Issue 9, September 2026.
Nonlinear photocurrents provide broadband spectroscopic access to quantum materials from terahertz to optical frequencies. Their sensitivity to spin, orbital, chiral, topological, and quantum‐geometric properties enables insights across ferroelectrics, magnetic and two‐dimensional materials, moiré heterostructures, topological flat bands, and light ...
Kurosch Mehrgan, Alexandre Bernard, Christoph Kastl   +2 more
wiley   +1 more source

Nonlinear Force‐Extension Response of a Polyelectrolyte Chain Undergoing Mechano–Electrostatic–Conformational Coupling and Metastable Heterogeneity

Small Structures, Volume 7, Issue 9, September 2026.
Mechanical stretching drives a collapsed polyelectrolyte through globular, tadpole‐like, and extended conformations with concurrent charge redistribution. Counterion condensation neutralizes the compact head, whereas release sustains a highly ionized tail.
Zhenjie Xu, Xinbo Liu, Yuheng Liu, Xingkui Guo, Haibao Lu   +4 more
wiley   +1 more source

Manipulating nonlinear dephasing dynamics of Dirac fermions in nearly degenerate four-wave mixing

PhotoniX
Graphene has led the exploration of nonlinear optical responses in two-dimensional materials with exceptionally strong third-order nonlinearity and its electrical controllability.
Seongju Ha, Youngchan Choi, Nam Hun Park, Jungseok Choi, Jaedeok Park, Kwang Jun Ahn, Hee-Su Park, JaeDong Lee, Sang Min Lee, Dong-Il Yeom   +9 more
doaj   +1 more source

A new nonlinear generalization of the Dirac equation

, 2013
We postulate a new nonlinear generalization of the Dirac equation for an electron. Basic properties of the new equation are considered.
openaire   +2 more sources

Pyrochlore Artificial Spin Ice: Advances in Fabrication and Characterization of a 3D Magnetic Metamaterial

Small Structures, Volume 7, Issue 9, September 2026.
Pyrochlore artificial spin ice—a 3D magnetic metamaterial—is fabricated using two‐photon lithography and pyrolysis to create a polymer scaffold with a suitably small size that hosts tilted nanomagnets at different heights and orientations. Magnetic force microscopy reveals a variety of magnet states, while imaging with synchrotron X‐ray microscopy is ...
Luca Berchialla, Arjen van den Berg, Gavin M. Macauley, Evangelos Golias, Yuran Niu, Tianyue Wang, Armin Kleibert, Sam Ladak, Laura J. Heyderman   +8 more
wiley   +1 more source

Macroscopic Coulomb Force Versus Maxwell Stress Theory: Consistencies and Discrepancies

ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, Volume 106, Issue 9, September 2026.
ABSTRACT In macroscopic electrostatics, there are two rivaling concepts describing the electrostatic action of force: the continuous formulation of the Coulomb force and the Maxwell stress theory. Although their mutual consistency is well‐known for free charges distributed continuously on volumes and surfaces, a revisit of the seemingly uncontroversial
Lennart Behlen, Daniel Wallenta, Andreas Ricoeur   +2 more
wiley   +1 more source

The Concept of the Mixing Index

Water Resources Research, Volume 62, Issue 9, September 2026.
Abstract Many current measures of mixing, such as the statistics of concentration, the scalar dissipation rate, or dilution index, are based on the dilution of a single component or pseudo‐component. Because of this, they miss the influence of numerous conditions that directly change true mixing, such as initial separation of chemically distinct water ...
David A. Benson, Diogo Bolster, Nicholas B. Engdahl   +2 more
wiley   +1 more source

Fine‐tuning ab initio XANES spectra calculations using the Bayesian optimization algorithm

Journal of Synchrotron Radiation, Volume 33, Issue 5, Page 1455-1466, September 2026.
A Bayesian optimization technique is used to tune the FEFF and FDMNES packages and to improve matching between theoretical and experimental spectra. The tests were performed on monometallic Ni, Fe and Pd K‐edge XANES spectra using several different spectrum similarity metrics.Theoretical modeling of X‐ray absorption near‐edge structure (XANES) spectra ...
Andrey A. Sapronov, Dmitry E. Doronkin, Jan-Dierk Grunwaldt   +2 more
wiley   +1 more source

Numerical Evidence of Invariance of Turbulence Dissipation Rate in Breaking Waves

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract We perform direct numerical simulations to verify the hypothesis of invariance of the turbulence dissipation rate, proposed by Deane, Stokes, and Callaghan (2016, https://doi.org/10.1175/jpo‐d‐14‐0187.1) based on their laboratory breaking wave experiments.
Umberto C. Bitencourt, Saswata Basak, Grant B. Deane, M. Dale Stokes, Anqing Xuan, Han Liu, Lian Shen   +6 more
wiley   +1 more source