Zobrazeno 1 - 10
of 231
pro vyhledávání: '"P. Evripidou"'
We classify rational solutions of a specific type of the set theoretical version of the pentagon equation. That is, we find all quadrirational maps $R:(x,y)\mapsto (u(x,y),v(x,y)),$ where $u, v$ are two rational functions on two arguments, that serve
Externí odkaz:
http://arxiv.org/abs/2405.04945
Autor:
Anastasia Antoniou, Nikolas Evripidou, Anastasia Nikolaou, Andreas Georgiou, Marinos Giannakou, Antreas Chrysanthou, Leonidas Georgiou, Cleanthis Ioannides, Christakis Damianou
Publikováno v:
Journal of Medical Ultrasound, Vol 32, Iss 4, Pp 297-308 (2024)
Background: The main goal of the study was to find the magnetic resonance imaging (MRI) parameters that optimize contrast between tissue and thermal lesions produced by focused ultrasound (FUS) using T1-weighted (T1-W) and T2-weighted (T2-W) fast spi
Externí odkaz:
https://doaj.org/article/25d68859c2f244ffb7ce87057e579bff
Autor:
Kleo Evripidou, Julio Alvarez-Pitti, Ana De Blas-Zapata, Athanasia Chainoglou, Ioannis Goulas, Karel Herberigs, Gilad Hamdani, Stella Stabouli
Publikováno v:
Blood Pressure, Vol 33, Iss 1 (2024)
Objective Findings from adult studies suggest that tronco-conical cuffs provide more accurate blood pressure (BP) measurements in individuals with obesity. The aim of the present study was to examine differences in office blood pressure (BP) levels u
Externí odkaz:
https://doaj.org/article/1a21d2ae497d40ba8ffbd1ac9e190b4f
Autor:
Anastasia Antoniou, Nikolas Evripidou, Antreas Chrysanthou, Leonidas Georgiou, Cleanthis Ioannides, Kyriakos Spanoudes, Christakis Damianou
Publikováno v:
Journal of Medical Physics, Vol 49, Iss 2, Pp 203-212 (2024)
Purpose: The current study provides insights into the challenges of safely operating a magnetic resonance imaging (MRI)-guided focused ultrasound (MRgFUS) robotic system in a high-field MRI scanner in terms of robotic motion accuracy. Materials and M
Externí odkaz:
https://doaj.org/article/b4ea4d6302574167bfc673040d035c02
Autor:
Antria Filippou, Nikolas Evripidou, Andreas Georgiou, Anastasia Nikolaou, Christakis Damianou
Publikováno v:
Journal of Medical Physics, Vol 49, Iss 2, Pp 167-180 (2024)
Aim: Agar-based phantoms are popular in high intensity focused ultrasound (HIFU) studies, with magnetic resonance imaging (MRI) preferred for guidance since it provides temperature monitoring by proton resonance frequency (PRF) shift magnetic resonan
Externí odkaz:
https://doaj.org/article/c7a09e8aa230408cae9e9f4929604da9
Autor:
Rola S Zeidan, Margaret K Ohama, Natalia Evripidou, Stephen D Anton, Laith L Hamed, Yi Lin, Christiaan Leeuwenburgh, Faheem W Guirguis, Philip A Efron, Sheryl Flynn, Barbara Smith, Rhonda Bacher, Naveen Bakarasan, Juan Sarmiento Delgado, Robert T Mankowski
Publikováno v:
JMIR Research Protocols, Vol 13, p e60270 (2024)
BackgroundWhile sepsis, an exaggerated response to infection, can affect people of all age groups, it is more prevalent in middle-aged and older adults. Older adults suffer worse short-term and long-term outcomes than younger patients. Older sepsis s
Externí odkaz:
https://doaj.org/article/58be65dacc784d8fb2b88f7b58668d56
The Kahan discretization of the Lotka-Volterra system, associated with any skew-symmetric graph $\Gamma$, leads to a family of rational maps, parametrized by the step size. When these maps are Poisson maps with respect to the quadratic Poisson struct
Externí odkaz:
http://arxiv.org/abs/2105.05799
We show that some hard to detect properties of quadratic ODEs (eg certain preserved integrals and measures) can be deduced more or less algorithmically from their Kahan discretization, using Darboux Polynomials (DPs). Somewhat similar results hold fo
Externí odkaz:
http://arxiv.org/abs/2104.05951
We study the basic relation between skew-symmetric Lotka-Volterra systems and graphs, both at the level of objects and morphisms, and derive a classification from it of skew-symmetric Lotka-Volterra systems in terms of graphs as well as in terms of i
Externí odkaz:
http://arxiv.org/abs/2010.16180
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