Results 81 to 90 of about 210,378 (309)
Advanced Healthcare Materials, EarlyView.Flexible, biocompatible PVDF nanofibers embedded with magnetite nanodiscs enable wireless magnetoelectric neuromodulation. Shape anisotropy of the nanodiscs facilitates magnetostrictive strain transfer under alternating magnetic fields, allowing activation of neurons in vitro and behavioral modulation in vivo, without requiring rigid implants or ...
Lorenzo Signorelli +11 more
wiley +1 more source
Frequency–frequency correlations of single-trajectory spectral densities of Gaussian processes
New Journal of Physics, 2022 We investigate the stochastic behavior of the single-trajectory spectral density $S(\omega ,\mathcal{T})$ of several Gaussian stochastic processes, i.e., Brownian motion, the Ornstein–Uhlenbeck process, the Brownian gyrator model and fractional Brownian ...
Alessio Squarcini +4 more
doaj +1 more source
Interactions Between Active Matters and Endogenous Fields
Advanced Materials, EarlyView.This review synthesizes endogenous field information and computational methods in contexts such as cancer, wounds, and biofilms. It organizes NAMs and AAMs by sensing, transmitting, and executing functions, compares their limitations, and from these contrasts proposes design strategies for next‐generation AAMs, offering perspectives to foster ...
Jinwei Lin +6 more
wiley +1 more source
Advanced Materials, EarlyView.Detecting proteins secreted by a single cell while retaining its viability remains challenging. A particles‐in‐particle (PiPs) system made by co‐encapsulating barcoded microparticles (BMPs) with a single cell inside an alginate hydrogel particle is introduced.
Félix Lussier +10 more
wiley +1 more source
Frontiers in Applied Mathematics and StatisticsThis research is devoted to studying a geometric Brownian motion with drift switching driven by a 2 × 2 Markov chain. A discrete-time multiplicative approximation scheme was developed, and its convergence in Skorokhod topology to the continuous-time ...
Vitaliy Golomoziy +2 more
doaj +1 more source
Intersections of Brownian motions
Expositiones Mathematicae, 2003 A survey of the theory of intersection of Brownian motions is given. The central result of this theory, as is known, is the classical theorem of Dvoretzky, Erdős and Kakutani, which says that ``two independent Brownian motions in \(d\)-dimensional space can intersect if and only if \(d \leq 3\)''.
openaire +2 more sources
Physical Intelligence in Small‐Scale Robots and Machines
Advanced Materials, EarlyView.“Physical intelligence” (PI) empowers biological organisms and artificial machines, especially at the small scales, to perceive, adapt, and even reshape their complex, dynamic, and unstructured operation environments. This review summarizes recent milestones and future directions of PI in small‐scale robots and machines.
Huyue Chen, Metin Sitti
wiley +1 more source
A group action on increasing sequences of set-indexed Brownian motions
Modern Stochastics: Theory and Applications, 2015 We prove that a square-integrable set-indexed stochastic process is a set-indexed Brownian motion if and only if its projection on all the strictly increasing continuous sequences are one-parameter G-time-changed Brownian motions.
Arthur Yosef
doaj +1 more source
On the excursions of drifted Brownian motion and the successive passage times of Brownian motion
, 2016 By using the law of the excursions of Brownian motion with drift, we find the distribution of the $n-$th passage time of Brownian motion through a straight line $S(t)= a + bt.$ In the special case when $b = 0,$ we extend the result to a space-time ...
Abundo, Mario
core +1 more source
Molecular Nanosolids Generation by Vapor Jet Desublimation
Advanced Materials, EarlyView.A single‐step, solvent‐free approach to fabricate nanoparticles of small organic molecules is demonstrated, using a nitrogen‐propelled vapor jet, enabling tunable particle morphology and crystallinity. Pharmaceutical, flavoring, dyeing and electronics‐relevant molecules are used, demonstrating process generalizability.
Chao Huang +11 more
wiley +1 more source