Results 11 to 20 of about 935,562 (293)

Nilpotent centers from analytical systems on center manifolds

open access: yesJournal of Mathematical Analysis and Applications, 2023
This paper considers analytical three-dimensional differential systems. The restriction of such systems to a center manifold has a nilpotent singular point at the origin. The authors prove that if the restricted system is analytic and has a nilpotent center at the origin, with Andreev number 2, then the three-dimensional system admits a formal inverse ...
Claudio Pessoa, Lucas Queiroz
openaire   +1 more source

A Comparison between Silver Nanosquare Arrays and Silver Thin-Films as a Blood Cancer Prognosis Monitoring Electrode Design Using Optical and Electrochemical Characterization

open access: yesNanomaterials, 2021
The development of silver (Ag) thin films and the fabrication of Ag nanosquare arrays with the use of an anodic aluminum oxide (AAO) template and leaf extracts were successfully carried out using the DC sputtering and spin coating deposition methods.
Nasori Nasori   +9 more
doaj   +1 more source

Health services access, utilization, and barriers for Arabic-speaking refugees resettled in Connecticut, USA

open access: yesBMC Health Services Research, 2022
Background Arabic-speaking refugees are the largest group of refugees arriving in the United States since 2008, yet little is known about their rates of healthcare access, utilization, and satisfaction after the end of the Refugee Medical Assistance (RMA)
Ali Elreichouni   +7 more
doaj   +1 more source

Analytic centers and analytic diameters of planar continua [PDF]

open access: yesTransactions of the American Mathematical Society, 1974
This paper contains some basic results about analytic centers and analytic diameters, concepts which arise in Vitushkin’s work on rational approximation. We use Carathéodory’s theorem to calculate β ( K , z ) \beta (K,z) in the case in which K is a continuum in the complex plane. This leads to
openaire   +1 more source

Role of noninvasive tests in the prognostication of metabolic dysfunction-associated steatotic liver disease [PDF]

open access: yesClinical and Molecular Hepatology
In managing metabolic dysfunction-associated steatotic liver disease, which affects over 30% of the general population, effective noninvasive biomarkers for assessing disease severity, monitoring disease progression, predicting the development of liver ...
Yue Wang   +6 more
doaj   +1 more source

Highly Sensitive ZnO/Au Nanosquare Arrays Electrode for Glucose Biosensing by Electrochemical and Optical Detection

open access: yesMolecules, 2023
The fabrication of a ZnO/Au nanosquare-array electrode was successfully carried out for the detection of glucose concentration in biomedical applications. The fabrication of the ZnO/Au nanosquare array using an ultra-thin alumina mask (UTAM) based on the
Vinda Zakiyatuz Zulfa   +7 more
doaj   +1 more source

Inverse Jacobian multipliers and Hopf bifurcation on center manifolds [PDF]

open access: yes, 2014
In this paper we consider a class of higher dimensional differential systems in $\mathbb R^n$ which have a two dimensional center manifold at the origin with a pair of pure imaginary eigenvalues. First we characterize the existence of either analytic or $
Zhang, Xiang
core   +1 more source

Long-term treatment outcomes of acromegaly patients presenting biochemically-uncontrolled at a tertiary pituitary center

open access: yesBMC Endocrine Disorders, 2017
Background Acromegaly is a rare, slowly progressive disorder resulting from excessive growth hormone (GH) production by a pituitary somatotroph tumor.
John D. Carmichael   +7 more
doaj   +1 more source

Solving variational inequalities defined on a domain with infinitely many linear constraints [PDF]

open access: yes, 2007
We study a variational inequality problem whose domain is defined by infinitely many linear inequalities. A discretization method and an analytic center based inexact cutting plane method are proposed.
A.F. Veinott   +31 more
core   +2 more sources

Ecosystem Development for Business as Mediacompany Growth Technology

open access: yesИзвестия Южного федерального университета: Филологические науки, 2018
The article is an example of the development of the regional media company “Expert South” in the context of the falling market of the printed press. The enterprise could gain growth by adopting a new strategy, diversifying the business, developing a ...
Vladimir I. Kozlov
doaj   +1 more source

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