Results 21 to 30 of about 3,808,046 (284)

Eigenfunction expansions associated with pairs of ordinary differential expressions

open access: yesJournal of Differential Equations, 1985
Let L and M be two formally symmetric \(m\times m\) systems of ordinary differential expressions of orders n and \(\nu\) respectively, defined on an open interval \(\iota\) \(\subset {\mathbb{R}}\) with coefficients which are sufficiently often differentiable and such that the leading coefficient of M is invertible on \(\iota\) and that, at least in ...
Dijksma, Aalt, Snoo, Hendrik S.V. de
openaire   +3 more sources

Non-Ordinary Mental Expressions

open access: yes, 2015
Collection of articles published in Frontiers in Human Neuroscience on such topics as hypnosis, meditation, psi, psychedelics.
Enrico Facco, Etzel Carde
openaire   +3 more sources

"Ordinary Life"; as a Polyphonic Composition [PDF]

open access: yes, 2008
Čapek’s novel “Ordinary Life” is interpreted from the point of a narrative approach. The authors argue that Čapek’s novel, published in 1934, anticipates more recent narrative approaches in psychology, in which identity is conceived as a permanent ...
Chrz, Vladimir, Cermák, Ivo
core   +4 more sources

Explicit expressions for meromorphic solutions of autonomous nonlinear ordinary differential equations [PDF]

open access: yesCommunications in Nonlinear Science and Numerical Simulation, 2011
Meromorphic solutions of autonomous nonlinear ordinary differential equations are studied. An algorithm for constructing meromorphic solutions in explicit form is presented. General expressions for meromorphic solutions (including rational, periodic, elliptic) are found for a wide class of autonomous nonlinear ordinary differential equations.
Demina, Maria V., Kudryashov, Nikolay A.
openaire   +3 more sources

World-Line Path Integral for the Propagator Expressed as an Ordinary Integral: Concept and Applications [PDF]

open access: yesFoundations of Physics, 2021
The (Feynman) propagator $G(x_2,x_1)$ encodes the entire dynamics of a massive, free scalar field propagating in an arbitrary curved spacetime. The usual procedures for computing the propagator -- either as a time ordered correlator or from a partition function defined through a path integral -- requires introduction of a field $ϕ(x)$ and its action ...
openaire   +2 more sources

A comparison of deterministic and stochastic modeling approaches for biochemical reaction systems: On fixed points, means, and modes.

open access: yesFrontiers in Genetics, 2016
In the mathematical modeling of biochemical reactions, a convenient standard approach is to use ordinary differential equations (ODEs) that follow the law of mass action.
Sayuri Katharina Hahl, Andreas Kremling
doaj   +1 more source

Generation and Identification of Ordinary Differential Equations of Maximal Symmetry Algebra

open access: yesAbstract and Applied Analysis, 2016
An effective method for generating linear ordinary differential equations of maximal symmetry in their most general form is found, and an explicit expression for the point transformation reducing the equation to its canonical form is obtained.
J. C. Ndogmo
doaj   +1 more source

مهارات اللغة التعبيرية والسلوک التکيفي لدى الأطفال المعاقين عقليًا القابلين للتعلم والعاديين. [PDF]

open access: yesمجلة البحث العلمي في التربية, 2018
تهدف الدراسة إلى الکشف عن العلاقة بين اللغة التعبيرية والسلوک التکيفي لدى ذوي الإعاقة العقلية القابلين للتعلم والأطفال العاديين، وتکونت الدراسة من (100) من الأطفال (50) طفل ذوي الإعاقة العقلية القابلين للتعلم، (50) طفل عادي ممن تتراوح أعمارهم ما بين (7 ...
أماني محمود أبوبکر محمد
doaj   +1 more source

Non-Ordinary Mental Expressions (NOMEs): Clues on the Nature of the Human Mind

open access: yesSSRN Electronic Journal, 2020
The aim of this paper is to describe some ostensibly odd, Non-Ordinary-Mental Expressions (NOMEs), that have been considered implausible, illusory or hallucinatory phenomena, possible symptoms of disorders of the neurological or psychological functioning.
Tressoldi , Patrizio   +2 more
openaire   +3 more sources

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