Results 11 to 20 of about 1,623,979 (311)

A discrete-time nutrients-phytoplankton-oysters mathematical model of a bay ecosystem*

open access: yesJournal of Biological Dynamics, 2023
Populations are generally censused daily, weekly, monthly or annually. In this paper, we introduce a discrete-time nutrients-phytoplankton-oysters (NPO) model that describes the interactions of nutrients, phytoplankton and oysters in a bay ecosystem.
Najat Ziyadi
doaj   +1 more source

Depression and Autoimmune Hypothyroidism—Their Relationship and the Effects of Treating Psychiatric and Thyroid Disorders on Changes in Clinical and Biochemical Parameters Including BDNF and Other Cytokines—A Systematic Review

open access: yesPharmaceuticals, 2022
Various autoimmune diseases, including autoimmune hypothyroidism (AHT), are associated with a higher risk of developing mood disorders throughout life. Depression is accompanied by the changes in the levels of inflammatory and trophic factors, including ...
Zofia Kotkowska, Dominik Strzelecki
doaj   +1 more source

A mathematical model to study the spread of COVID-19 and its control in India

open access: yesComputational and Mathematical Biophysics, 2023
In this article, a nonlinear mathematical model is proposed and analyzed to study the spread of coronavirus disease (COVID-19) and its control. Due to sudden emergence of a peculiar kind of infection, no vaccines were available, and therefore, the ...
Naresh Ram   +3 more
doaj   +1 more source

Resilience and Strategic Emotional Intelligence as Mediators between the Disconnection and Rejection Domain and Negative Parenting among Female Intimate Partner Violence Victims

open access: yesBrain Sciences, 2023
(1) Background: The exposure of children to intimate partner violence (IPV) is associated with a wide range of negative effects on children’s development, where as parenting practice is considered to be one of the key factors mediating and mitigating ...
Klaudia Sójta   +5 more
doaj   +1 more source

Antiviral Resistance against Viral Mutation: Praxis and Policy for SARS-CoV-2

open access: yesComputational and Mathematical Biophysics, 2021
Tools developed by Moderna, BioNTech/Pfizer, and Oxford/Astrazeneca, among others, provide universal solutions to previously problematic aspects of drug or vaccine delivery, uptake and toxicity, portending new tools across the medical sciences.
Penner Robert
doaj   +1 more source

A streamlined method for chiral fermions on the lattice [PDF]

open access: yes, 1992
We discuss the use of renormalization counterterms to restore the chiral gauge symmetry in a lattice theory of Wilson fermions. We show that a large class of counterterms can be implemented automatically by making a simple modification to the fermion ...
Bodwin, Geoffrey T., Kovacs, Eve V.
core   +3 more sources

Analysis and estimation of the COVID-19 pandemic by modified homotopy perturbation method

open access: yesApplied Mathematics in Science and Engineering, 2023
The Bernoulli equation is useful to assess the motility and recovery rate with respect to time in order to measure the COVID-19 outbreak. The homotopy perturbation method was applied in the current article to compute the Bernoulli equation.
Garima Agarwal   +3 more
doaj   +1 more source

Derangement model of ligand-receptor binding

open access: yesComputational and Mathematical Biophysics, 2022
We introduce a derangement model of ligand-receptor binding that allows us to quantitatively frame the question “How can ligands seek out and bind to their optimal receptor sites in a sea of other competing ligands and suboptimal receptor sites?” To ...
Williams Mobolaji
doaj   +1 more source

A Separate Higgs? [PDF]

open access: yes, 1992
We investigate the possibility of a multi-Higgs doublet model where the lightest neutral Higgs boson ($h^0$) decouples from the fermion sector. We are partially motivated by the four $\ell^+\ell^-\gamma\gamma$ events with $M_{\gamma\gamma}\simeq60$\,GeV ...
Barger, V.   +3 more
core   +3 more sources

Unconditionally positive NSFD and classical finite difference schemes for biofilm formation on medical implant using Allen-Cahn equation

open access: yesDemonstratio Mathematica, 2022
The study of biofilm formation is becoming increasingly important. Microbes that produce biofilms have complicated impact on medical implants.
Tijani Yusuf O., Appadu Appanah R.
doaj   +1 more source

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