Results 81 to 90 of about 14,686,178 (292)

Nonexplicit evolution Volterra integral equation of the first kind with nonlinear integral delay

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2009
We prove a theorem of existence, uniqueness and stability of solution of the implicit evolution Volterra integral equation with respect to the initial value condition on the given finite segment.
T. K. Yuldashev
doaj   +1 more source

Forecasting the Dialysis Burden in Japan: Validation‐Based Projections of Prevalence and Incidence Through 2050

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Japan has one of the highest dialysis prevalence rates worldwide and a shrinking, aging population. Whether dialysis burden has entered a sustained post‐peak phase or whether recent declines partly reflect pandemic‐related disruptions remains uncertain.
Hatice Şahin   +2 more
wiley   +1 more source

The problem of first integral of nonholonomic systems

open access: yesVietnam Journal of Mechanics, 2001
In this paper, the problem of first integrals of a nonholonomic system is discussed. The aim of this work is concentra.ted on finding the condition for existence of first integrals.
Do Sanh
doaj   +1 more source

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

The Fundamental Theorem on Quadratic First Integrals

open access: yesProceedings of the National Academy of Sciences, 1946
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Two Ostrowski Type Inequalities for the Stieltjes Integral of Monotonic Functions [PDF]

open access: yes, 2006
Two integral inequalities of Ostrowski type for the Stieltjes integral are given. The first is for monotonic integrators and Hölder continuous integrands while the second considers the dual case, i.e., for monotonic integrands and Hölder continuous ...
Cheung, Wing Sum, Dragomir, Sever S
core   +2 more sources

The missing first integral

open access: yesJournal of Differential Equations, 1988
The author studies the question of integrability of abstract CR structures on \({\mathbb{R}}^ 3\). If a is a smooth function defined near the origin in \({\mathbb{R}}^ 3\), he says that a satisfies condition \((I^+)\) if there exists a neighborhood of the origin U in \({\mathbb{R}}^ 4\) and \(A\in C^{\infty}(U)\) such that \(\partial A/\partial t+i ...
openaire   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Remarks on the center and focus problem for planar systems

open access: yes上海师范大学学报. 自然科学版, 2013
The center and focus problem is one of the main topics of the qualitative theory of ordinary differential equations.Systems in higher dimensional spaces can be reduced to systems in the plane with the help of the center manifold theorem.Therefore,it is ...
HAN Maoan
doaj  

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