Results 21 to 30 of about 709,012 (286)

Représentations, attitudes, stylisation vocale des accents en formation Français Langue d’Insertion/d’Intégration

open access: yesLa Bretagne Linguistique, 2017
This contribution is based on doctoral research conducted for a thesis entitled ‘Dire (avec) l’accent: représentations et attitudes liées aux accents en formation linguistique obligatoire pour adultes migrants allophones’ (Dupouy, 2018). It addresses the
Myriam Dupouy
doaj   +1 more source

Understanding Combined Health and Business Risk Behaviour: Small Tourism Firm Owners Reopening Amid COVID-19 in Pingyao, China

open access: yesBehavioral Sciences, 2022
This study explores the psychological factors affecting small tourism firm (STF) owners’ decision making about reopening businesses in the midst of COVID-19 based on protection motivation theory and the theory of planned behaviour.
Haizhou Zhang   +3 more
doaj   +1 more source

Asymmetric Norms and the dual complexity spaces. [PDF]

open access: yes, 2015
Desde el punto de vista de la Ciencia de la Computación, un avance reciente lo ha constituido el establecimiento de un modelo matemático que da cuenta de la distancia entre algoritmos y programas, cuando estos son analizados desde la óptica de la complejidad computacional, entendiendo por complejidad, por ejemplo, la medida del tiempo de computación ...
openaire   +2 more sources

The Goldstine Theorem for asymmetric normed linear spaces

open access: yesTopology and its Applications, 2009
If \(X\) is a linear space, then a function \(q: X\to\mathbb{R}^+\) is called an asymmetric norm on \(X\) if for all \(x,y\in X\) and \(r\in \mathbb{R}^+\), \(x= 0\) if and only if \(q(x)= q(-x)= 0\), \(q(rx)= rq(x)\) and \(q(x+ y)= q(x)+ q(y)\). It follows that the function \(q^s: X\to\mathbb{R}\) defined by \(d^s(x)= \max(q(x), q(-x))\) is a norm on \
García-Raffi, L.M.   +2 more
openaire   +1 more source

Principal Component Analysis in an Asymmetric Norm [PDF]

open access: yesSSRN Electronic Journal, 2016
Principal component analysis (PCA) is a widely used dimension reduction tool in the analysis of high-dimensional data. However, in many applications such as risk quantification in finance or climatology, one is interested in capturing the tail variations rather than variation around the mean. In this paper, we develop Principal Expectile Analysis (PEC),
Ngoc M. Tran, Maria Osipenko
openaire   +1 more source

Compact bilinear operators on asymmetric normed spaces [PDF]

open access: yesTopology and its Applications, 2022
The paper is concerned with compact bilinear operators on asymmetric normed spaces. The study of multilinear operators on asymmetric normed spaces was initiated by Latreche and Dahia, Colloq. Math. (2020). We go further in this direction and prove a Schauder type theorem on the compactness of the adjoint of a compact bilinear operator and study the ...
openaire   +3 more sources

Transcranial Direct Current Stimulation Altered Voluntary Cooperative Norms Compliance Under Equal Decision-Making Power

open access: yesFrontiers in Human Neuroscience, 2018
Social norms play an essential role in human interactions and the development of the evolution of human history. Extensive studies corroborate that compliance with social norms typically requires a punishment threat as almost always specific individuals ...
Jianbiao Li   +7 more
doaj   +1 more source

Single Facility Goal Location Problems with Symmetric and Asymmetric Penalty Functions [PDF]

open access: yesControl and Optimization in Applied Mathematics, 2019
Location theory is an interstice field of optimization and operations research. In the classic location models, the goal is finding the location of one or more facilities such that some criteria such as transportation cost, the sum of distances passed by
Aria Soleimani Koorandeh   +3 more
doaj   +1 more source

On the uniqueness of extension and unique best approximation in the dual of an asymmetric normed linear space

open access: yesJournal of Numerical Analysis and Approximation Theory, 2003
A well known result of R. R. Phelps (1960) asserts that in order that every linear continuous functional, defined on a subspace \(Y\) of a real normed space \(X\), have a unique norm preserving extension it is necessary and sufficient that its ...
Costică Mustăţa
doaj   +2 more sources

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

open access: yesFEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure   +3 more
wiley   +1 more source

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