Results 71 to 80 of about 12,646 (189)

Plasma Brain Dynamics (PBD): A Mechanism for EEG Waves Under Human Consciousness [PDF]

open access: yes, 2017
EEG signals are records of nonlinear solitary waves in human brains. The waves have several types (e.g., α, β, γ, θ, δ) in response to different levels of consciousness. They are classified into two groups: Group-1 consists of complex storm-like waves (α,
ma, Z. G.
core   +2 more sources

Trajectories of Alcohol‐Related Problems Among First‐Year Nursing Students: Nature, Predictors, and Outcomes

open access: yesStress and Health, Volume 42, Issue 2, April 2026.
ABSTRACT This study aims to contribute to an improved dynamic person‐centred comprehension of the distinct trajectories of alcohol‐related problems observed among first‐year nursing students. Data was collected from 2963 first‐year nursing students on four occasions over the course of their first semester of professional training (3 months).
Pierre Cheyroux   +6 more
wiley   +1 more source

Dimensionality Engineering: A Pathway to Ferroelectric Halide Perovskites

open access: yesSmall Structures, Volume 7, Issue 4, April 2026.
Ferroelectric halide perovskites provide a unique platform where switchable polarization coexists with semiconducting behavior. This review discusses how dimensionality engineering governs ferroelectric behavior across 3D, 2D, and 1D systems, summarizes key chemical design strategies for stabilizing ferroelectric states, and highlights polarization ...
Hyeongyu Gim   +6 more
wiley   +1 more source

Finite volume schemes for dispersive wave propagation and runup [PDF]

open access: yes, 2010
Finite volume schemes are commonly used to construct approximate solutions to conservation laws. In this study we extend the framework of the finite volume methods to dispersive water wave models, in particular to Boussinesq type systems. We focus mainly
Amick   +77 more
core   +6 more sources

Acceleration of ion phase-space holes due to interactions with ion solitons in a wave-guided plasma

open access: yesScientific Reports
Ion phase-space holes are solitary kinetic structures found in the ion phase-space of collision-less plasmas, and are nonlinear solutions to the Vlasov-Poisson equations, identified as Bernstein-Greene-Kruskal (BGK) modes.
Allen Lobo, Vinod Kumar Sayal
doaj   +1 more source

BGK electron solitary waves: 1D and 3D [PDF]

open access: yesNonlinear Processes in Geophysics, 2002
This paper presents new results for 1D BGK electron solitary wave (phase-space electron hole) solutions and, based on the new results, extends the solutions to include the 3D electrical interaction (E ~ 1/r 2) of charged particles.
L.-J. Chen, G. K. Parks
doaj  

Highly nonlinear waves' sensor technology for highway infrastructures [PDF]

open access: yes, 2008
This paper describes preliminary results towards the development of an innovative NDE/SHM scheme for material characterization and defect detection based on the generation of highly nonlinear solitary waves (HNSWs).
Daraio, Chiara   +2 more
core   +2 more sources

Nonlinearity Matters in Light–Matter Interaction: Multiphoton 3D Lithography

open access: yesSmall Structures, Volume 7, Issue 4, April 2026.
Multiphoton lithography relies on nonlinear energy deposition to initiate polymerization. By quantifying optical nonlinearities in pure and photosensitized SZ2080TM resist, we show that the host resist, alone or interacting with photoinitiators, dominates energy deposition, which can be further controlled by adjusting the laser interaction volume ...
Michalis Stavrou   +9 more
wiley   +1 more source

Dissipative Boussinesq equations [PDF]

open access: yes, 2007
The classical theory of water waves is based on the theory of inviscid flows. However it is important to include viscous effects in some applications. Two models are proposed to add dissipative effects in the context of the Boussinesq equations, which ...
Dias, Frédéric, Dutykh, Denys
core   +5 more sources

Racial Disparities in Weather‐Related Mortality in Virginia

open access: yesGeoHealth, Volume 10, Issue 4, April 2026.
Abstract To examine racial disparities in weather‐related mortality in Virginia from 2005 to 2020. An ecological descriptive study using daily mortality data from the Virginia Department of Health and weather data from the National Climatic Data Center.
Pamela B. DeGuzman   +12 more
wiley   +1 more source

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