Results 31 to 40 of about 2,531,275 (230)

Exact solution of a spin-ladder model

open access: yes, 1999
An integrable spin-ladder model with nearest-neighbor exchanges and biquadratic interactions is proposed. With the Bethe ansatz solutions of the model hamiltonian, it is found that there are three possible phases in the ground state, i.e., a rung ...
A. A. Nersesyan   +28 more
core   +1 more source

Exact solution for the nonlinear pendulum

open access: yesRevista Brasileira de Ensino de Física
This paper deals with the nonlinear oscillation of a simple pendulum and presents not only the exact formula for the period but also the exact expression of the angular displacement as a function of the time, the amplitude of oscillations and the angular
A. Beléndez   +4 more
doaj   +1 more source

Exact solution of the Susceptible–Infectious–Recovered–Deceased (SIRD) epidemic model

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2022
Exact solution of the Susceptible-Infectious-Recovered-Deceased (SIRD) epidemic model is established, and various properties of solution are derived directly from the exact solution.
Norio Yoshida
doaj   +1 more source

Exact perturbative solution of the Kondo problem

open access: yes, 1995
We explicitly evaluate the infinite series of integrals that appears in the "Anderson-Yuval" reformulation of the anisotropic Kondo problem in terms of a one-dimensional Coulomb gas.
A. Schmid   +21 more
core   +1 more source

An Exact Solution of BPS Domain Wall Junction [PDF]

open access: yes, 1999
An exact solution of domain wall junction is obtained in a four-dimensional N=1 supersymmetric U(1) X U(1)' gauge theory with three pairs of chiral superfields which is motivated by the N=2 SU(2) gauge theory with one flavor perturbed by an adjoint ...
Ito, Kenji   +3 more
core   +2 more sources

Why and When Are Evidence‐Based Interventions Adopted in Paediatric Supportive Care? A Qualitative Exploration of the Determinants of Photobiomodulation Implementation

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Oral mucositis is a common and debilitating side effect of childhood cancer and stem cell transplant treatments. It affects the quality of life of children and young people (CYP) and places a strain on services. Photobiomodulation is recommended for oral mucositis prevention in international guidance but is poorly implemented in UK ...
Claudia Heggie   +4 more
wiley   +1 more source

An Exact Solution to O(26) Sigma Model coupled to 2-D Gravity

open access: yes, 1994
By a mapping to the bosonic string theory, we present an exact solution to the O(26) sigma model coupled to 2-D quantum gravity. In particular, we obtain the exact gravitational dressing to the various matter operators classified by the irreducible ...
A. Polyakov   +8 more
core   +1 more source

Real‐World Pediatric Blinatumomab Administration: Access to Outpatient Care Delivery and Impact of a Hospital‐Dispensed Model

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Blinatumomab has been shown to be highly effective for patients with pediatric B‐ALL and has recently become standard of care therapy. Due to its past use in the clinical trial setting, there is limited information available about real‐world administration.
Katelyn Oranges   +12 more
wiley   +1 more source

Exact solution of peristaltic flow of biviscosity fluid in an endoscope: A note

open access: yesAlexandria Engineering Journal, 2014
This article deals with the peristaltic flow of biviscosity fluid in an endoscope. This study concentrates on the MHD characteristics and endoscope effects for peristaltic flow of a biviscosity fluid. Exact solutions are computed.
Noreen Sher Akbar, S. Nadeem
doaj   +1 more source

The Constant Astigmatism Equation. New Exact Solution

open access: yes, 2013
In this paper we present a new solution for the Constant Astigmatism equation.
Manganaro, Natale, Pavlov, Maxim V.
core   +1 more source

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