Results 31 to 40 of about 153,856 (313)

Confining and escaping magnetic field lines in tokamaks: Analysis via symplectic maps

open access: yesFundamental Plasma Physics, 2023
In magnetically confined plasma, it is possible to qualitatively describe the magnetic field configuration via phase spaces of suitable symplectic maps.
Matheus S. Palmero, Iberê L. Caldas
doaj   +1 more source

Generalized isocline method of plotting phase-plane trajectories [PDF]

open access: yesIEEE Transactions on Automatic Control, 1965
By considering simultaneously the N-x (or the N-\dot{x} ), where N=d\dot{x}/dx and the \dot{x}-x planes, second order non-linear autonomous systems (not easily amendable to the existing methods) described by the differential equation \ddot{x}=F(x, \dot{x}) can be studied.
Deekshatulu, BL, Murthy, ISN
openaire   +2 more sources

Selkov’s Dynamic System of Fractional Variable Order with Non-Constant Coefficients

open access: yesMathematics
This article uses an approach based on the triad model–algorithm–program. The model is a nonlinear dynamic Selkov system with non-constant coefficients and fractional derivatives of the Gerasimov–Caputo type.
Roman Parovik
doaj   +1 more source

Trajectory-free approximation of phase space structures using the trajectory divergence rate [PDF]

open access: yesNonlinear Dynamics, 2019
18 pages, 15 ...
Gary K. Nave   +2 more
openaire   +3 more sources

Deschampsia antarctica population dynamics given the trends in air temperature and penguin activity

open access: yesУкраїнський антарктичний журнал
The main objective of the study is to describe the dynamics of the total size of Deschampsia antarctica population of Galindez Island, Argentine Islands, the maritime Antarctic, during 1964–2021, both in total and as eight sectoral groups of populations ...
Nataliia Miryuta   +4 more
doaj   +1 more source

Phase-Type Distributions of Animal Trajectories with Random Walks

open access: yesMathematics, 2023
Animal monitoring systems often rely on expensive and challenging GPS-based systems to obtain accurate trajectories. However, an alternative approach is to generate synthetic trajectories that exhibit similar statistical properties to real trajectories ...
Rodolfo Vera-Amaro   +2 more
doaj   +1 more source

Patient Activation in Childhood, Adolescent, and Young Adult Cancer Survivors: Current Insights and Implications for Survivorship Care—A Systematic Review From the e‐QuoL Project

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Purpose Patient activation—encompassing knowledge, confidence, and skills in managing individual's health—is a cornerstone of person‐centered care. However, its significance among childhood, adolescent, and young adult cancer survivors (CAYACS) remains unexplored. This article examines the application of the 13‐item Patient Activation Measure (
Charlotte Demoor‐Goldschmidt   +12 more
wiley   +1 more source

ON BEHAVIOR OF TRAJECTORIES OF WEAK SOLUTIONS OF N-DIMENSIONAL STOCHASTIC NAVIER-STOKES EQUATIONS

open access: yesРоссийский технологический журнал, 2017
The research paper study a behavior of trajectories of weak solutions of n-dimensional (n≥2) Navier-Stokes equations, perturbed by an additive white noise. It is shown that at any given moment t trajectories in its subsequent motion along the phase space
D. A. Khrychev
doaj   +1 more source

Bohmian trajectories and quantum phase space distributions [PDF]

open access: yesPhysics Letters A, 2002
12 pages, to appear in Phys.
Dias, Nuno Costa, Prata, João Nuno
openaire   +2 more sources

Unheard and Under‐Supported: Health‐Related Quality of Life in Children, Adolescents, and Young Adults With Sickle Cell Disease

open access: yesPediatric Blood &Cancer, EarlyView.
Abstract Background Sickle cell disease (SCD) is an autosomal recessive hemoglobinopathy affecting millions of individuals worldwide. The clinical expression and psychosocial burden of SCD vary widely across geographical, cultural, and healthcare system contexts, underscoring the need for setting‐specific approaches to assessment.
Desiré Fantasia   +7 more
wiley   +1 more source

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