Results 31 to 40 of about 137,700 (252)

Statistics of non-linear stochastic dynamical systems under L\'evy noises by a convolution quadrature approach

open access: yes, 2011
This paper describes a novel numerical approach to find the statistics of the non-stationary response of scalar non-linear systems excited by L\'evy white noises.
Cottone G Di Paola M Marino F   +14 more
core   +1 more source

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

A kernel-free boundary integral method for reaction-diffusion equations

open access: yesElectronic Research Archive
This paper was based on a kernel-free boundary integral (KFBI) method for solving the reaction-diffusion equation. The KFBI method serves as a general elliptic solvers for boundary value problems in an irregular problem domain.
Yijun Chen, Yaning Xie
doaj   +1 more source

An Efficient Algorithm for Classical Density Functional Theory in Three Dimensions: Ionic Solutions

open access: yes, 2009
Classical density functional theory (DFT) of fluids is a valuable tool to analyze inhomogeneous fluids. However, few numerical solution algorithms for three-dimensional systems exist.
Davidovits, Seth   +4 more
core   +2 more sources

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

A Novel Fractional Integral Transform-Based Homotopy Perturbation Method for Some Nonlinear Differential Systems

open access: yesFractal and Fractional
In this work, we introduce an innovative analytical–numerical approach to solving nonlinear fractional differential equations by integrating the homotopy perturbation method with the new integral transform.
Aisha F. Fareed   +3 more
doaj   +1 more source

Convective Flow of Blood in Square and Circular Cavities

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2018
In this study, the fully developed, steady, laminar ow of blood is studied in a long pipe with square and circular cross-sections subjected to a magnetic field generated by an electric wire.
Senel P., Tezer-Sezgin M.
doaj   +1 more source

New high-order integral methods in computational electromagnetism [PDF]

open access: yes, 2004
We present a new set of high-order algorithms and methodologies for the numerical solution of problems of scattering by complex bodies in three-dimensional space.
Bruno, Oscar P.
core  

An intracellular transporter mitigates the CO2‐induced decline in iron content in Arabidopsis shoots

open access: yesFEBS Letters, EarlyView.
This study identifies a gene encoding a transmembrane protein, MIC, which contributes to the reduction of shoot Fe content observed in plants under elevated CO2. MIC is a putative Fe transporter localized to the Golgi and endosomal compartments. Its post‐translational regulation in roots may represent a potential target for improving plant nutrition ...
Timothy Mozzanino   +7 more
wiley   +1 more source

The Modified Degenerate Kernel Method for the Multi-Dimensional Fredholm Integral Equations of the Second Kind

open access: yesپژوهش‌های ریاضی, 2020
Introduction For the scientific study of a natural phenomenon it must be modeled. The resulting model is often expressed as a differential equation (DE), an integral equation (IE) or an integro-differential equation (IDE) or a system of these. Therefore,
Ahmad Molabahrami
doaj  

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