Results 51 to 60 of about 1,287,809 (281)

Therapeutic Apheresis for Intravenous Methylprednisolone‐Refractory Neuromyelitis Optica Spectrum Disorder: Clinical and Radiological Outcomes in a Single‐Center Case Series

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Neuromyelitis optica spectrum disorder (NMOSD) is a relapsing autoimmune disease of the central nervous system. High‐dose intravenous methylprednisolone (IVMP) is the standard first‐line therapy for acute attacks, although some patients remain refractory.
Wataru Horiguchi   +5 more
wiley   +1 more source

A Note on the Rotationally Symmetric SO(4) Euler Rigid Body

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2007
We consider an SO(4) Euler rigid body with two 'inertia momenta' coinciding. We study it from the point of view of bihamiltonian geometry. We show how to algebraically integrate it by means of the method of separation of variables.
Gregorio Falqui
doaj  

Application of the Chebyshev collocation method to solve boundary value problems of heat conduction

open access: yesDiscrete and Continuous Models and Applied Computational Science
For one-dimensional inhomogeneous (with respect to the spatial variable) linear parabolic equations, a combined approach is used, dividing the original problem into two subproblems.
Konstantin P. Lovetskiy   +3 more
doaj   +1 more source

Resolution methods for mathematical models based on differential equations with Stieltjes derivatives

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2019
Stieltjes differential equations, i.e. differential equations with usual derivatives replaced by derivatives with respect to given functions (derivators), are useful to model processes which exhibit dead times and/or sudden changes.
Rodrigo López Pouso   +1 more
doaj   +1 more source

Can a Finite Degenerate ‘String’ Hear Itself The Exact Solution to a Simplified IBVP

open access: yesJournal of Optimization, Differential Equations and Their Applications, 2022
The separation of variables based solution to a simplified (compared to that published earlier in JODEA, 28 (1) (2020), 1 – 42) initial boundary value problem for a 1D linear degenerate wave equation, posed in a space-time rectangle, has been presented ...
Vladimir L. Borsch, Peter I. Kogut
doaj   +1 more source

Local Approximation of Potential‐Energy Surfaces by Surfaces Permitting Separation of Variables [PDF]

open access: yes, 1964
In the immediate vicinity of a potential‐energy minimum or of a saddle point, it is shown that major topographical features of a "nonseparable" potential‐energy surface can be imitated by those of a surface permitting separation of variables.
Marcus, R. A.
core   +1 more source

Surface operators and separation of variables [PDF]

open access: yesJournal of High Energy Physics, 2016
Alday, Gaiotto, and Tachikawa conjectured relations between certain 4d N=2 supersymmetric field theories and 2d Liouville conformal field theory. We study generalizations of these relations to 4d theories with surface operators. For one type of surface operators the corresponding 2d theory is the WZW model, and for another type - the Liouville theory ...
Frenkel, Edward   +2 more
openaire   +7 more sources

Dietary Protein Intake and Peritoneal Protein Losses in Peritoneal Dialysis Patients

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Peritoneal dialysis (PD) patients lose protein in their waste dialysate, potentially increasing their risk for malnutrition. We wished to determine whether there was any association between losses and dietary protein intake (DPI). Methods DPI was assessed from 24‐h dietary recall using Nutrics software.
Haalah Shaaker, Andrew Davenport
wiley   +1 more source

Investigation of Doubly Nonlinear Parabolic Equation

open access: yesProceedings of the International Conference on Applied Innovations in IT
We study the properties of solutions for a porous medium equation (PME) in non-divergent form with a source term. The PME is a fundamental model in various physical and biological processes, including fluid flow through porous media, heat transfer, and ...
Makhmud Bobokandov   +3 more
doaj   +1 more source

The Mittag-Leffler Function for Re-Evaluating the Chlorine Transport Model: Comparative Analysis

open access: yesFractal and Fractional, 2022
This paper re-investigates the mathematical transport model of chlorine used as a water treatment model, when a variable order partial derivative is incorporated for describing the chlorine transport system.
Abdulrahman F. Aljohani   +5 more
doaj   +1 more source

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