Average volume of the domain visited by randomly injected spherical Brownian particles inddimensions

1996 ◽  
Vol 54 (1) ◽  
pp. 92-99 ◽  
Author(s):  
Alexander M. Berezhkovskii ◽  
George H. Weiss
Keyword(s):  
Average Volume ◽  
Brownian Particles

Effects of an absorbing boundary on the average volume visited by N spherical Brownian particles

2003 ◽  
Vol 330 (1-2) ◽  
pp. 167-176 ◽  
Author(s):  
Hernan Larralde ◽  
Alexander M. Berezhkovskii ◽  
George H. Weiss
Keyword(s):  
Average Volume ◽  
Absorbing Boundary ◽  
Brownian Particles

Trapping of Brownian particles by random traps: destruction of the fluctuation slow-down

1998 ◽  
Vol 77 (5) ◽  
pp. 1277-1281
Author(s):  
Alexander M. Berezhkovskii, Veaceslav Zaloj,
Keyword(s):  
Brownian Particles ◽  
Random Traps

The system of convective thermals as a generalized ensemble of Brownian particles

2016 ◽  
Vol 186 (2) ◽  
pp. 113-124 ◽  
Author(s):  
Alexander N. Vulfson ◽  
Oleg O. Borodin
Keyword(s):  
Brownian Particles

Nondiffusive Brownian Motion Studied by Diffusing-Wave Spectroscopy

1989 ◽  
Vol 177 ◽  
Author(s):  
D. J. Pine ◽  
D. A. Weitz ◽  
D. J. Durian ◽  
P. N. Pusey ◽  
R. J. A. Tough
Keyword(s):  
Autocorrelation Function ◽  
Colloidal Particles ◽  
Scattered Light ◽  
Short Time Scale ◽  
Velocity Autocorrelation Function ◽  
Velocity Autocorrelation ◽  
Power Law Decay ◽  
Brownian Particles ◽  
Short Time ◽  
Surrounding Fluid

ABSTRACTOn a short time scale, Brownian particles undergo a transition from initially ballistic trajectories to diffusive motion. Hydrodynamic interactions with the surrounding fluid lead to a complex time dependence of this transition. We directly probe this transition for colloidal particles by measuring the autocorrelation function of multiply scattered light and observe the effects of the slow power-law decay of the velocity autocorrelation function.

scholarly journals The impact of vascular risk factors on the thickness and volume of the choroid in AMD patients

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Elżbieta Krytkowska ◽  
Aleksandra Grabowicz ◽  
Katarzyna Mozolewska-Piotrowska ◽  
Zofia Ulańczyk ◽  
Krzysztof Safranow ◽  
...  
Keyword(s):  
Risk Factors ◽  
Vascular Risk Factors ◽  
Age Related Macular Degeneration ◽  
Control Group ◽  
Vascular Risk ◽  
Average Volume ◽  
Central Ring ◽  
Age Related ◽  
The Impact ◽  
Wet Amd

AbstractDisturbances in choroidal microcirculation may lead to the onset and progression of age-related macular degeneration (AMD). We aimed to assess changes in the choroidal volume and thickness in the macular region in AMD eyes and to investigate whether coexisting vascular risk factors alter choroidal status. We enrolled 354 AMD patients (175 dry, 179 wet AMD) and 121 healthy controls. All participants underwent a complete ophthalmologic examination and assessment of choroidal thickness and volume. A multivariate analysis adjusted for age, sex, and smoking status revealed that wet AMD was an independent factor associated with higher average thickness of the central ring area (ATC) and average volume of the central ring area (AVC) and lower choroidal vascularity index (CVI) compared to controls (β =  + 0.18, p = 0.0007, β =  + 0.18, p = 0.0008, respectively) and to dry AMD (β =  + 0.17, p = 0.00003 for both ATC and AVC and β =  − 0.30 p < 0.0001 for CVI). ATC, AVC and average volume (AV) were lower in AMD patients with hypertension and ischaemic heart disease (IHD). The duration of hypertension was inversely correlated with ATC, AVC and AV (Rs =  − 0.13, p < 0.05; Rs =  − 0.12; p < 0.05, Rs =  − 0.12; p < 0.05, respectively) while IHD duration negatively correlated with AV (Rs =  − 0.15, p < 0.05). No such associations were observed in the control group. Our findings show that the choroidal vascular system in eyes with AMD is much more susceptible to damage in the presence than in the absence of systemic vascular disease.

scholarly journals Characterization of MIPS in a suspension of repulsive active Brownian particles through dynamical features

2021 ◽  
Vol 154 (16) ◽  
pp. 164901
Author(s):  
José Martin-Roca ◽  
Raul Martinez ◽  
Lachlan C. Alexander ◽  
Angel Luis Diez ◽  
Dirk G. A. L. Aarts ◽  
...  
Keyword(s):  
Brownian Particles ◽  
Dynamical Features
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