Results 71 to 80 of about 6,651,187 (298)

A Novel Hybrid Crossover Dynamics of Monkeypox Disease Mathematical Model with Time Delay: Numerical Treatments

Fractal and Fractional
In this paper, we improved a mathematical model of monkeypox disease with a time delay to a crossover model by incorporating variable-order and fractional differential equations, along with stochastic fractional derivatives, in three different time ...
Nasser H. Sweilam, Seham M. Al-Mekhlafi, Saleh M. Hassan, Nehaya R. Alsenaideh, Abdelaziz E. Radwan   +4 more
doaj   +1 more source

Structure Preserving Numerical Analysis of Reaction-Diffusion Models

Journal of Function Spaces, 2022
In this paper, we examine two structure preserving numerical finite difference methods for solving the various reaction-diffusion models in one dimension, appearing in chemistry and biology.
Nauman Ahmed, Muhammad Aziz-ur Rehman, Waleed Adel, Fahd Jarad, Mubasher Ali, Muhammad Rafiq, Ali Akgül   +6 more
doaj   +1 more source

A Novel NR3C1 Frameshift Variant Associated With Familial Glucocorticoid Resistance Syndrome: An Integrated Analysis of Steroid Profiling and Structural Modeling

American Journal of Medical Genetics Part A, EarlyView.
ABSTRACT Glucocorticoid resistance syndrome (GRS) is a rare hereditary disorder caused by pathogenic variants in NR3C1, characterized by marked phenotypic heterogeneity and frequent misdiagnosis as primary aldosteronism or subclinical Cushing's syndrome.
Sufang Yun, Zhifeng Zhu, Fengye Zhou, Ying Liu, Chunfang Liang, Haitao Ju, Lin Lu, Zhaoli Yan   +7 more
wiley   +1 more source

Some nonstandard stochastic volatility models and their estimation using structured hidden Markov models

, 2011
Langrock R, MacDonald IL, Zucchini W. Some nonstandard stochastic volatility models and their estimation using structured hidden Markov models. Journal of Empirical Finance.
Iain L. MacDonald, Zucchini, Walter, Walter Zucchini, Roland Langrock, Langrock, Roland, MacDonald, Iain L., MacDonald, Ian L.   +6 more
core   +1 more source

Nonstandard numerical methods for a class of predator-prey models with predator interference

Electronic Journal of Differential Equations, 2007
We analyze a class of predator-prey models with Beddington-DeAngelis type functional response. The models incorporate the mutual interference between predators, which stabilizes predator-prey interactions even when only a linear intrinsic growth rate of ...
Dobromir T. Dimitrov, Hristo V. Kojouharov   +1 more
doaj  

Topological and nonstandard extensions

, 2005
We introduce a notion of topological extension of a given set X. The resulting class of topological spaces includes the Stone-ˇCech compactification βX of the discrete space X, as well as all nonstandard models of X in the sense of nonstandard analysis ...
DI NASSO, MAURO, FORTI, MARCO
core   +1 more source

SEQUENTIAL ENDS AND NONSTANDARD INFINITE BOUNDARIES OF COARSE SPACES (Research Trends on General Topology and its Related Fields) [PDF]

, 2022
This paper is an addendum to the author's previous paper ["A nonstandard invariant of coarse spaces, " The Graduate Journal of Mathematics, vol. 5, no. 1, pp. 1-8, 2020.]. Miller et al. [B. Miller, L. Stibich, and J. Moore, "An invariant of metric spaces
IMAMURA, TAKUMA
core  

Numerical Analysis of the Susceptible Exposed Infected Quarantined and Vaccinated (SEIQV) Reaction-Diffusion Epidemic Model

Frontiers in Physics, 2020
In this paper, two structure-preserving nonstandard finite difference (NSFD) operator splitting schemes are designed for the solution of reaction diffusion epidemic models.
Nauman Ahmed, Nauman Ahmed, Mehreen Fatima, Dumitru Baleanu, Dumitru Baleanu, Kottakkaran Sooppy Nisar, Ilyas Khan, Muhammad Rafiq, Muhammad Aziz ur Rehman, Muhammad Ozair Ahmad   +9 more
doaj   +1 more source

Nonstandard Work and Child Care Choices of Married Mothers [PDF]

The focus of this paper is to examine the interplay between nonstandard employment and child care choice decisions of married mothers with young children.
Lisa Powell, Jean Kimmel
core  

Nonstandard Foundations of Equilibrium Search Models [PDF]

We develop an equilibrium sequential search model which includes most of the literature as special cases. In particular, the model can accommodate heterogeneity in buyers’ search costs and demand functions and firms’ cost functions, with general demand ...
Michael T. Rauh
core