Results 21 to 30 of about 1,453,083 (343)
Using First-Passage Times to Analyze Tumor Growth Delay
Mathematics, 2021 A central aspect of in vivo experiments with anticancer therapies is the comparison of the effect of different therapies, or doses of the same therapeutic agent, on tumor growth.
Patricia Román-Román +3 more
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Quadrinomial trees with stochastic volatility to value real options [PDF]
Journal of Economics Finance and Administrative Science, 2021 Purpose – The purpose of this article is to propose a detailed methodology to estimate, model and incorporate the non-constant volatility onto a numerical tree scheme, to evaluate a real option, using a quadrinomial multiplicative recombination.
Freddy H. Marín-Sánchez +2 more
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Network Models and Simulation Analytics for Multi-scale Dynamics of Biological Invasions
Frontiers in Big Data, 2022 Globalization and climate change facilitate the spread and establishment of invasive species throughout the world via multiple pathways. These spread mechanisms can be effectively represented as diffusion processes on multi-scale, spatial networks.
Abhijin Adiga +6 more
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Two Stochastic Differential Equations for Modeling Oscillabolastic-Type Behavior
Mathematics, 2020 Stochastic models based on deterministic ones play an important role in the description of growth phenomena. In particular, models showing oscillatory behavior are suitable for modeling phenomena in several application areas, among which the field of ...
Antonio Barrera +2 more
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Latency-Bounded Target Set Selection in Signed Networks
Algorithms, 2020 It is well-documented that social networks play a considerable role in information spreading. The dynamic processes governing the diffusion of information have been studied in many fields, including epidemiology, sociology, economics, and computer ...
Miriam Di Ianni, Giovanna Varricchio
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Fractal and Fractional, 2019 New aspects of electron transport in quantum wires with Lévy-type disorder are described. We study the weak scattering and the incoherent sequential tunneling in one-dimensional quantum systems characterized by a tempered Lévy stable ...
Renat T. Sibatov, HongGuang Sun
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Growth Curves Modelling and Its Application
Engineering Proceedings, 2023 In this article, we compare two ways of modelling measures of fetal growth. The goal is to impute the missing information for certain ultrasound measurements that are observed at different times and with different numbers of observations.
Ana García-Burgos +5 more
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Reaction-diffusion processes with nonlinear diffusion [PDF]
Physical Review E, 2012 We study reaction-diffusion processes with concentration-dependent diffusivity. First, we determine the decay of the concentration in the single-species and two-species diffusion-controlled annihilation processes. We then consider two natural inhomogeneous realizations.
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ANOVA for diffusions and Itô processes [PDF]
The Annals of Statistics, 2006 It processes are the most common form of continuous semimartingales, and include diffusion processes. This paper is concerned with the nonparametric regression relationship between two such It processes. We are interested in the quadratic variation (integrated volatility) of the residual in this regression, over a unit of time (such as a day).
Mykland, Per Aslak, Zhang, Lan
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Diffusion Processes in Turbulent Magnetic Fields [PDF]
, 2007 We study of the effect of turbulence on diffusion processes within magnetized medium. While we exemplify our treatment with heat transfer processes, our results are quite general and are applicable to different processes, e.g. diffusion of heavy elements.
Lazarian, Alex
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