Results 51 to 60 of about 2,054,434 (283)

Diffusion of Tagged Particle in an Exclusion Process

open access: yes, 2009
We study the diffusion of tagged hard core interacting particles under the influence of an external force field. Using the Jepsen line we map this many particle problem onto a single particle one.
E. Barkai   +8 more
core   +1 more source

Effects of the Fluid Replacement Method During Online Hemodiafiltration on the Solute Removal Performance and Biocompatibility Using the Asymmetric Cellulose Triacetate Membrane

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Pre‐dilution online hemodiafiltration (Pre‐HDF) is predominantly used in Japan, whereas post‐dilution online HDF (Post‐HDF) is more common in Europe. An asymmetric cellulose triacetate (ATA) membrane may improve biocompatibility.
Kenji Sakurai   +4 more
wiley   +1 more source

A Compound Computational Model for Filling-In Processes Triggered by Edges: Watercolor Illusions

open access: yesFrontiers in Neuroscience, 2019
The goal of our research was to develop a compound computational model with the ability to predict different variations of the “watercolor effects” and additional filling-in effects that are triggered by edges.
Hadar Cohen-Duwek, Hedva Spitzer
doaj   +1 more source

Reaction-diffusion with a time-dependent reaction rate: the single-species diffusion-annihilation process

open access: yes, 2004
We study the single-species diffusion-annihilation process with a time-dependent reaction rate, lambda(t)=lambda_0 t^-omega. Scaling arguments show that there is a critical value of the decay exponent omega_c(d) separating a reaction-limited regime for ...
ben-Avraham D   +11 more
core   +2 more sources

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Heart rate from face videos under realistic conditions for advanced driver monitoring

open access: yesCurrent Directions in Biomedical Engineering, 2017
The role of physiological signals has a large impact on driver monitoring systems, since it tells something about the human state. This work addresses the recursive probabilistic inference problem in time-varying linear dynamic systems to incorporate ...
Pilz Christian S.   +3 more
doaj   +1 more source

Black hole motion in Euclidean space as a diffusion process

open access: yes, 2012
A diffusion equation for a black hole is derived from the Bunster-Carlip equations. Its solution has the standard form of a Gaussian distribution. The second moment of the distribution determines the quantum of black hole area.
A. Barvinsky, K. Ropotenko
core   +2 more sources

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Machine learning of pair-contact process with diffusion

open access: yesScientific Reports, 2022
The pair-contact process with diffusion (PCPD), a generalized model of the ordinary pair-contact process (PCP) without diffusion, exhibits a continuous absorbing phase transition.
Jianmin Shen   +5 more
doaj   +1 more source

Fast Diffusion Mechanism of Silicon Tri-interstitial Defects [PDF]

open access: yes, 2005
We reveal the microscopic self-diffusion process of compact tri-interstitials in silicon using a combination of molecular dynamics and nudged elastic band methods.
Barr, Stephen A.   +5 more
core   +3 more sources

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