Journals

ARIMA

[Revue africaine de recherche en informatique et mathématiques appliquées]

ARIMA

Revue africaine de recherche en informatique et mathématiques appliquées

The Revue africaine de recherche en informatique et mathématiques appliquées (ARIMA) was born in 2002 from a North/South scientific collaboration carried out in the wake of the activities of the African Colloquium for Research in Computer Science and Applied Mathematics (Colloque africain pour la recherche en informatique et mathématiques appliquées, CARI). The journal publishes the research results of these collaborations in French and English on an ongoing basis.

Director of publication: Maurice Tchuenté
Editor-in-chief: Nabil Gmati ; Mathieu Roche ; Maurice Tchuenté ; Bruce Watson
Medium: electronic
Frequency: continuous
Date created: 2002
Date of publication on Episciences: 2016
eISSN: 1638-5713
Subjects: Computer Science and Applied Mathematics
Languages of publication: English, French

Review process: single blind peer review
CC BY 4.0 licence

Publisher: African Society in Digital Science
- Address: Department of Mathematics and Computer Science, Faculty of Science, University of Dschang, P.O. Box 96 Dschang
- Country: Cameroon
Contact: arima AT episciences.org

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Latest articles

Les modèles LSAWfP non récursifs sont des workflows structurés

Les langages de workflow occupent une place importante dans la discipline du Business Process Management (BPM) : ils sont utilisés pour modéliser les processus opérationnels afin de faciliter leur gestion automatique à l'aide de systèmes BPM. Il existe de nombreux langages de workflow qui traitent de divers aspects (expressivité, analyse formelle, etc.). Au cours de la dernière décennie, certains langages de workflow basés sur des grammaires algébriques (ayant alors une sémantique formelle) et offrant de nouvelles perspectives à la modélisation des processus ont vu le jour : LSAWfP (a Language for the Specification of Administrative Workflow Processes) est l'un d'entre eux. LSAWfP présente de nombreux avantages par rapport aux langages existants, mais c'est son expressivité (qui a été très peu abordée dans les travaux antérieurs) qui est étudiée dans le présent document. En effet, les travaux présentés dans ce document visent à démontrer que tout modèle LSAWfP non récursif est un workflow structuré. Sachant que la majorité des systèmes BPM commerciaux ne gèrent que des workflows structurés, le résultat de cette étude montre que, bien que LSAWfP soit encore très théorique, il est un langage au potentiel économique certain.

Zekeng Ndadji, Milliam Maxime

July 05, 2023

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Combiner Scrum et l'Architecture Dirigée par les modèles pour le développement d'un système de surveillance épidémiologique

Les systèmes de surveillance épidémiologiques évoluent avec le temps, en tenant compte du contexte et des données collectées. Ainsi, les logiciels utilisés doivent aussi évoluer pour pouvoir répondre aux besoins. Cependant, de nouvelles exigences des clients peuvent prendre du temps pour être implémentées, coûter plus cher (dans le cas où il faut recruter des programmeurs) et causer des problèmes comme le problème de régression logiciel. Ainsi, le logiciel peut devenir défaillant. Ceci est dû à un mauvais transfert des exigences des clients vers la mise en œuvre. Ce problème peut être évité si le système est développé en utilisant un framework et une architecture permettant le développement/la mise à jour rapide des logiciels de surveillance. La recherche empirique d'une part montre que l'Ingénierie Dirigée par les Modèles (par exemple, Architecture Dirigée par les Modèles ou Model-Driven Architecture - MDA) est plus efficace que les approches basées sur le code pour le développement et la maintenance de certains logiciels. D'autre part, les processus agiles tels que Scrum sont plus efficaces que les processus structurés lorsque les exigences sont sujettes aux changements fréquents. Il a été démontré que le développement des logiciels de santé comme les logiciels de surveillance épidémiologique en utilisant les processus structurés ou les approches de développement centrées sur le code n'est pas évident car ces logiciels sont sujettes aux changements fréquents. Dans ce travail, nous étudions la combinaison de Scrum avec MDA pour le développement du système de surveillance épidémiologique de la tuberculose. A son terme, nous avons trouvé la combinaison de Scrum et MDA simple, très utile lorsque l'outil sous-jacent peut générer tout le code source. La combinaison de Scrum et MDA a eu des effets positifs sur la productivité et la satisfaction des programmeurs et des clients. En plus, nous avons constaté que pour impliquer les non-informaticiens dans le développement ou la mise à jour, l'interface de modélisation doit être aussi simple que possible.

Azanzi, Jiomekong

July 04, 2023

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CM

[Communications in Mathematics]

CM

Communications in Mathematics

Communications in Mathematics—created in 2009—is the continuation of the journal Acta Mathematica et Informatica Universitatis Ostraviensis, founded in 1993, which became Acta Mathematica Universitatis Ostraviensis in 2003. Communications in Mathematics publishes research and review articles in English in all areas of pure and applied mathematics, mathematical physics and computer science.

Director of publication: Jan Lata
Editor-in-chief: Ivan Kaygorodov
Medium: electronic
Frequency: annual
Date created: 2009
Date of publication on Episciences: 2021
eISSN: 2336-1298
Subjects: mathematics
Languages of publication: English

Review process: single blind peer review
CC BY-SA 4.0 licence

Publisher: University of Ostrava
- Address: Dvořákova 7, 701 03 Ostrava
- Country: Czech Republic
Contact: cm AT episciences.org

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Latest articles

Relaxation in one-dimensional tropical sandpile

A relaxation in the tropical sandpile model is a process of deforming a tropical hypersurface towards a finite collection of points. We show that, in the one-dimensional case, a relaxation terminates after a finite number of steps. We present experimental evidence suggesting that the number of such steps obeys a power law.

Shkolnikov, Mikhail

September 26, 2023

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Solvable Leibniz superalgebras whose nilradical has the characteristic sequence $(n-1, 1 \mid m)$ and nilindex $n+m$

Leibniz superalgebras with nilindex $n + m$ and characteristic sequence $(n-1, 1 \ | \ m)$ divided into four parametric classes that contain a set of non-isomorphic superalgebras. In this paper, we give a complete classification of solvable Leibniz superalgebras whose nilradical is a nilpotent Leibniz superalgebra with nilindex $n + m$ and characteristic sequence $(n-1, 1 \ | \ m)$. We obtain a condition for the value of parameters of the classes of such nilpotent superalgebras for which they have a solvable extension. Moreover, the classification of solvable Leibniz superalgebras whose nilradical is a Lie superalgebra with the maximal nilindex is given.

Kh., Khudoyberdiyev A.

September 20, 2023

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CST

[Les Cahiers Scientifiques du Transport]

CST

Les Cahiers Scientifiques du Transport

Created in 1979, the Cahiers Scientifiques du Transport/Scientific Papers in Transportation publishes biannual varia or thematic issues of articles on the field of transport, mobility and logistics. Supported by the French Association of Transport and Logistics Institutes (AFITL), the journal highlights the disciplinary diversity of the contributions.

Director of publication: Antoine Frémont
Editor-in-chief: Laurent Carnis
Medium: electronic
Frequency: biannual
Date created: 1979
Date of publication on Episciences: 2022
eISSN: 1150-8809
Subjects: development, engineering, management sciences, political science, urbanism
Language of publication: French

Review process: single blind peer review
CC BY 4.0 licence

Publisher: Association française des instituts de transport et de logistique (AFITL)
- Address: MSH Lyon Saint-Étienne, 14 avenue Berthelot, 69363 Lyon Cedex 07
- Country: France
Contact: cst AT episciences.org

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Latest articles

Transport maritime de marchandises : la construction d’un système juridique complexe dépassant le mythe de l’uniformité

Dans la mesure où le transport maritime de marchandises implique divers types d'opérateurs commerciaux internationaux, l'uniformité de la règlementation applicable semble être le meilleur moyen de satisfaire aux exigences de sécurité de ces différents acteurs. Il est donc nécessaire de se demander si cet idéal d’uniformisation du droit du transport maritime de marchandises tenté par les États est atteignable voire même souhaitable ou s’il ne faut pas constater en la matière que les opérateurs du transport international maritime de marchandises, loin d’être pénalisés par le conflit de normes applicables, n’y trouvent pas la souplesse nécessaire pour adapter le cadre juridique à leur propre contrat de transport ?

Branellec, Gurvan

September 08, 2023

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Communication en matière de sécurité routière et comportement des usagers de la route : le rôle du risque perçu

L’objectif de cet article est de montrer dans quelle mesure la communication en sécurité routière influe sur le comportement des usagers de la route. Pour atteindre cet objectif, nous avons collecté les données à partir d’une enquête par questionnaire sur une période de cinq mois, de février à juin 2019. Ces données ont fait l’objet d’une analyse factorielle exploratoire et d’une analyse factorielle confirmatoire ; des équations structurelles ont également été mobilisées pour tester les hypothèses que nous nous sommes fixées. Les résultats montrent que la communication a un effet direct sur le comportement des usagers de la route ; elle influe sur la perception du risque corporel, mais ce dernier n’a pas d’effet sur le comportement ; la communication n’influe pas sur la perception du risque matériel qui pour sa part a un effet sur le comportement. Les résultats montrent également que la force du lien entre ces variables dépend de la ville de résidence de l’usager, de sa nature et de son âge.

Nkene Ndeme, Richard

June 23, 2023

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DMTCS

[Discrete Mathematics & Theoretical Computer Science]

DMTCS

Discrete Mathematics & Theoretical Computer Science

Discrete Mathematics & Theoretical Computer Science (DMTCS) is a peer-reviewed journal created in 1997. As a member of the DMTCS Association, it publishes research articles in English in the fields of discrete mathematics and theoretical computer science, especially at the intersection of these two disciplines.

Director of publication: Jens Gustedt
Editors-in-chief: Christoph Haase, Dieter Rautenbach, Sergi Elizalde and Hadas Shachnai
Medium: electronic
Frequency: continuous
Date created: 1997
Date of publication on Episciences: 2016
eISSN: 1365-8050
Subjects: mathematics, computer science
Languages of publication: English

Review process: single blind peer review
CC BY 4.0 licence

Publisher: Association DMTCS
- Address: c/o Jens Gustedt, 67A avenue Jean-Jaurès, 67100 Strasbourg
- Country: France
Contact: dmtcs AT episciences.org

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Latest articles

Maker-Breaker domination game on trees when Staller wins

In the Maker-Breaker domination game played on a graph $G$, Dominator's goal is to select a dominating set and Staller's goal is to claim a closed neighborhood of some vertex. We study the cases when Staller can win the game. If Dominator (resp., Staller) starts the game, then $\gamma_{\rm SMB}(G)$ (resp., $\gamma_{\rm SMB}'(G)$) denotes the minimum number of moves Staller needs to win. For every positive integer $k$, trees $T$ with $\gamma_{\rm SMB}'(T)=k$ are characterized and a general upper bound on $\gamma_{\rm SMB}'$ is proved. Let $S = S(n_1,\dots, n_\ell)$ be the subdivided star obtained from the star with $\ell$ edges by subdividing its edges $n_1-1, \ldots, n_\ell-1$ times, respectively. Then $\gamma_{\rm SMB}'(S)$ is determined in all the cases except when $\ell\ge 4$ and each $n_i$ is even. The simplest formula is obtained when there are at least two odd $n_i$s. If $n_1$ and $n_2$ are the two smallest such numbers, then $\gamma_{\rm SMB}'(S(n_1,\dots, n_\ell))=\lceil \log_2(n_1+n_2+1)\rceil$. For caterpillars, exact formulas for $\gamma_{\rm SMB}$ and for $\gamma_{\rm SMB}'$ are established.

Bujtás, Csilla

September 06, 2023

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Antisquares and Critical Exponents

The (bitwise) complement $\overline{x}$ of a binary word $x$ is obtained by changing each $0$ in $x$ to $1$ and vice versa. An $\textit{antisquare}$ is a nonempty word of the form $x\, \overline{x}$. In this paper, we study infinite binary words that do not contain arbitrarily large antisquares. For example, we show that the repetition threshold for the language of infinite binary words containing exactly two distinct antisquares is $(5+\sqrt{5})/2$. We also study repetition thresholds for related classes, where "two" in the previous sentence is replaced by a larger number. We say a binary word is $\textit{good}$ if the only antisquares it contains are $01$ and $10$. We characterize the minimal antisquares, that is, those words that are antisquares but all proper factors are good. We determine the growth rate of the number of good words of length $n$ and determine the repetition threshold between polynomial and exponential growth for the number of good words.

Baranwal, Aseem

September 06, 2023

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Environment

EID

[Environnement, Ingénierie & Développement]

EID

Environnement, Ingénierie & Développement

Launched in 2021, Environnement, Ingénierie & Développement (EID) is an evolution of the journal Déchets Sciences & Techniques created in 1996. Supported by INSA Lyon, EID welcomes research articles and feedback, in French or English, in the fields of industrial and urban environment, circular economy and territorial industrial ecology.

Director of publication: Frédéric Fotiadu
Editors-in-chief: Rémy Gourdon ; Mathieu Gautier
Medium: electronic
Frequency: three issues per year
Date created: 1996
Date of publication on Episciences: 2021
eISSN: 2778-844X
Subject: environment engineering
Languages of publication: English, French

Review process: single blind peer review
CC BY 4.0 licence

Publisher: INSA de Lyon
- Address: 20 avenue Albert Einstein, 69621 Villeurbanne cedex
- Country: France
Contact: eid AT episciences.org

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Latest articles

Méthode de quantification des flux des mines urbaines : cas des briques en terre cuite en Ile de France

Le secteur du bâtiment est un grand consommateur de ressources et producteur de déchets. Dans un contexte d’épuisement des ressources, on peut imaginer qu’il devra mettre en place des stratégies pour devenir davantage circulaire. Une solution possible est d’avoir recours aux mines urbaines, c’est-à-dire, de voir les bâtiments existants comme un gisement de ressources disponibles pour les futurs constructions ou rénovations du parc immobilier lors de leur déconstruction ou rénovation. Cet article propose une méthode pour mettre en relation des quantités de matériaux issus de la déconstruction et de la rénovation avec les besoins du secteur du bâtiment neuf ou de la rénovation. Après leur extraction des mines urbaines, les éléments de construction peuvent convenir à divers usages secondaires. Les usages possibles en sortie des filières de réemploi, réutilisation et de recyclage sont identifiés et les quantités de matériaux répondant à chacun de ceux-ci sont déterminés avec des unités adéquates (m2, kg…). Ces unités facilitent la comparaison entre les matériaux valorisés et la demande. La méthode se veut prospective en considérant comme hypothèse que l’économie circulaire est pleinement développée et que l’accent n’est mis que sur la faisabilité technique des modes de valorisation. Afin d’illustrer la méthode, le cas des briques en terre cuite en Ile-de-France est développé. Durant l’année 2020, 153 kt de briques en terre cuite ont été produites par la démolition de bâtiments sur ce territoire, permettant d’obtenir au maximum (et sous réserve d’une bonne qualité de tri et des matériaux déconstruits), une surface de plus de 21 000 m2 de parois en briques de maçonnerie, par exemple, et 9,2 kt de granulats destinés à la fabrication de béton.

Clavier, Sarah

March 28, 2023

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Variabilité spatiale de la qualité des eaux agricoles d’un bassin versant de deux arrondissements d’Antananarivo (Madagascar)

Contexte : L’analyse spatiale de la qualité des eaux a été réalisée dans la zone agricole située dans un bas-fond d’un bassin versant de Tana 2 et Tana 4 – Madagascar. Objectif : Elle vise à déterminer la nature des eaux agricoles et la variabilité spatiale de leur alcalinité, leur salinité et leur teneur en matière organique. Méthodes : La zone agricole a été subdivisée en trois parcelles P1, P2 et P3 selon le type de sol. Des échantillons d’eaux prélevés sur les 43 points géo référencés de cette zone ont été soumis aux mesures de pH, Conductivité Électrique (CE) et Demande Chimique en Oxygène (DCO). La distribution spatiale de ces paramètres a été établie par interpolation des valeurs de ces indicateurs en utilisant v.kriging du logiciel GRASS GIS. Résultats et discussion : Les eaux des parcelles P2 présentent une forte alcalinité. Celles de la parcelle P3 sont très riches en sels dissous et en matières organiques. La distribution spatiale de l’alcalinité et la salinité suit un modèle linéaire, tandis qu’un modèle exponentiel caractérise la répartition de la matière organique.

Rakoto, Nelly Ghislaine

March 22, 2023

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ENTICS

[Electronic Notes in Theoretical Informatics and Computer Science]

ENTICS

Electronic Notes in Theoretical Informatics and Computer Science

ENTICS—Electronic Notes in Theoretical Informatics and Computer Science—publishes proceedings of conferences and workshops in English that include significant theoretical advances in computer science and theoretical informatics.

Director of publication: Bruno Sportisse
Editor-in-chief: Michael Mislove
Medium: electronic
Frequency: continuous
Date created: 2022
Date of publication on Episciences: 2023
eISSN: 2969-2431
Subjects: computer science, theoretical informatics
Language of publication: English
Review process: single blind peer review
CC BY 4.0 licence
Publisher: Inria
- Address: Domaine de Voluceau Rocquencourt – B.P. 105 78153 Le Chesnay Cedex
- Country: France
Contact: entics AT episciences.org

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Latest articles

The sheaf representation of residuated lattices

The residuated lattices form one of the most important algebras of fuzzy logics and have been heavily studied by people from various different points of view. Sheaf presentations provide a topological approach to many algebraic structures. In this paper, we study the topological properties of prime spectrum of residuated lattices, and then construct a sheaf space to obtain a sheaf representation for each residuated lattice.

Zhang, Huarong

March 21, 2023

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A Hofmann-Mislove theorem for $c$-well-filtered spaces

The Hofmann-Mislove theorem states that in a sober space, the nonempty Scott open filters of its open set lattice correspond bijectively to its compacts saturated sets. In this paper, the concept of $c$-well-filtered spaces is introduced. We show that a retract of a $c$-well-filtered space is $c$-well-filtered and a locally Lindel\"{o}f and $c$-well-filtered $P$-space is countably sober. In particular, we obtain a Hofmann-Mislove theorem for $c$-well-filtered spaces.

Zhang, Liping

March 21, 2023

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EpiDEMES

[Épijournal de Didactique et Epistémologie des Mathématiques pour l’Enseignement Supérieur]

EpiDEMES

Épijournal de Didactique et Epistémologie des Mathématiques pour l’Enseignement Supérieur

Epijournal de Didactique et Epistémologie des Mathématiques pour l’Enseignement Supérieur (EpiDEMES) is a peer-reviewed journal founded in 2019 that publishes articles in French or English. EpiDEMES aims to build a documentary base for the initial and continuing education of teachers in higher education. The fields covered are didactics and epistemology of mathematics (AMS 97-XX Mathematics Education classification) with the object of study being mathematics in higher education and the phenomena linked to its teaching-learning.

Director of publication: Nicolas Grenier-Boley
Editors-in-chief: Nicolas Grenier-Boley and Hussein Sabra
Medium: electronic
Frequency: biannual
Date created: 2019
Date of publication on Episciences: 2019
eISSN: 2970-166X
Subjects: mathematics, didactics of mathematics
Languages of publication: English, French

Review process: single blind peer review
CC BY-SA 4.0 licence

Country: France
Contact: epidemes AT episciences.org

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Latest articles

Quelle est la place des exemples dans l'enseignement de l'algèbre abstraite ?

Enseigner l'algèbre abstraite, vue comme l'étude des structures et des propriétés des structures, à un niveau universitaire apparaît être un challenge pour les corps étudiant et professoral. Les professeurs de notre étude décrivent ce passage à travers l'abstraction pour le corps étudiant comme un « jeu de massacre », un « mur infranchissable » ou encore « un saut à travers l'abstraction ». Dans cet article, en appui sur une étude de cas (Candy, 2020) nous allons étudier les choix de professeurs enseignant l'algèbre abstraite à l'université. Ces professeurs ont été choisis car ils enseignent l'algèbre abstraite à l'université en France, de plus ils nous ont donné accès à leur corpus de cours et ont accepté d'être interviewés. Dans cet article, nous choisirons d'étudier en particulier l'enseignement du concept d'idéal. Une analyse épistémologique nous permettra de mettre en évidence son rôle central dans la construction de l'algèbre abstraite. Puis, en utilisant la théorie anthropologique du didactique (Chevallard, 1998), nous chercherons à préciser la place des exemples et exercices dans la praxis du corps étudiant.

Stalder, Julie

June 29, 2023

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Conceptions des étudiants des classes préparatoires en Tunisie sur l'intégrale de Riemann

The integral is one of the most important topics in Calculus that is difficult to be understood by many students. When solving definite integral application problems, previous research emphasizes that students found the antiderivative procedure more useful and easier than the approximation process or area (Akrouti, 2020). This paper focuses on students' conceptions of the definite integral in the first year of preparatory class. Data were collected from students' written responses to questions that relate to their views of integration. The analysis shows that the majority of students choose the algebraic process to evaluate the proposed integrals. Participants were first-semester calculus students enrolled in a public university.

Akrouti, Inen

June 06, 2023

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Epiga

[Épijournal de Géométrie Algébrique]

Epiga

Épijournal de Géométrie Algébrique

Epijournal de Géométrie Algébrique (Epiga) is a peer-reviewed mathematics journal created in 2016. Supported by the Epiga Association, it publishes articles annually in French or in English. The fields covered are algebraic geometry in the broadest sense, including complex and arithmetic geometry, algebraic group theory and representations.

Director of publication: Pierre-Emmanuel Chaput
Coordinating editor: Stéphane Druel
Medium: electronic
Frequency: annual
Date created: 2016
Date of publication on Episciences: 2016
eISSN: 2491-6765
Subjects: mathematics, algebraic geometry
Languages of publication: English, French

Review process: single blind peer review
CC BY-SA 4.0 licence

Publisher: Association Épiga
- Address: Institut Elie Cartan de Lorraine, Université de Lorraine, BP 70239, 54506 Vandœuvre-lès-Nancy Cedex
- Country: France
Contact: epiga AT episciences.org

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Latest articles

On a decomposition of $p$-adic Coxeter orbits

We analyze the geometry of some $p$-adic Deligne--Lusztig spaces $X_w(b)$ introduced in [Iva21] attached to an unramified reductive group ${\bf G}$ over a non-archimedean local field. We prove that when ${\bf G}$ is classical, $b$ basic and $w$ Coxeter, $X_w(b)$ decomposes as a disjoint union of translates of a certain integral $p$-adic Deligne--Lusztig space. Along the way we extend some observations of DeBacker and Reeder on rational conjugacy classes of unramified tori to the case of extended pure inner forms, and prove a loop version of Frobenius-twisted Steinberg's cross section.

Ivanov, Alexander B.

September 27, 2023

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K-stability for varieties with a big anticanonical class

We extend the algebraic K-stability theory to projective klt pairs with a big anticanonical class. While in general such a pair could behave pathologically, it is observed in this note that K-semistability condition will force them to have a klt anticanonical model, whose stability property is the same as the original pair.

Xu, Chenyang

September 01, 2023

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FI

[Fundamenta Informaticae]

FI

Fundamenta Informaticae

Fundamenta Informaticae, established in 1977, is a peer-reviewed scientific journal covering all areas of computer science, with main focus on theoretical foundations. The journal is published as Series IV of Annales Societatis Mathematicae Polonae, by the Polish Mathematical Society.

Director of publication: Prof. Jacek Miękisz
Editor-in-chief: Damian Niwiński
Medium: print and electronic
Frequency: 5-6 volumes per year
Date created: 1977
Date of publication on Episciences: 2020
eISSN: 1875-8681
Subjects: computer science
Languages of publication: English

Review process: single blind peer review
CC BY 4.0 licence

Publisher: Polish Mathematical Society
- Address: ul. Śniadeckich 8, 00-656 Warszawa
- Country: Poland
Contact: fi AT episciences.org

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Latest articles

Diffuse and Localized Functional Dysconnectivity in Schizophrenia: a Bootstrapped Top-Down Approach

Schizophrenia (SZ) is a brain disorder leading to detached mind's normally integrated processes. Hence, the exploration of the symptoms in relation to functional connectivity (FC) had great relevance in the field. FC can be investigated on different levels, going from global features to single edges between regions, revealing diffuse and localized dysconnection patterns. In this context, SZ is characterized by a diverse global integration with reduced connectivity in specific areas of the Default Mode Network (DMN). However, the assessment of FC presents various sources of uncertainty. This study proposes a multi-level approach for more robust group-comparison. FC between 74 AAL brain areas of 15 healthy controls (HC) and 12 SZ subjects were used. Multi-level analyses and graph topological indexes evaluation were carried out by the previously published SPIDER-NET tool. Robustness was augmented by bootstrapped (BOOT) data and the stability was evaluated by removing one (RST1) or two subjects (RST2). The DMN subgraph was evaluated, toegether with overall local indexes and connection weights to enhance common activations/deactivations. At a global level, expected trends were found. The robustness assessment tests highlighted more stable results for BOOT compared to the direct data testing. Conversely, significant results were found in the analysis at lower levels. The DMN highlighted reduced connectivity and strength as well as increased deactivation in the SZ group. At local level, 13 areas were found to be significantly different ($p<0.05$), highlighting a greater divergence in the frontal lobe. These results were confirmed analyzing the negative edges, suggesting inverted connectivity between prefronto-temporal areas. In conclusion, multi-level analysis supported by BOOT is highly recommended, especially when diffuse and localized dysconnections must be investigated in limited samples.

Coluzzi, Davide

September 21, 2023

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Error Correction for Discrete Tomography

Discrete tomography focuses on the reconstruction of functions $f: A \to \mathbb{R}$ from their line sums in a finite number $d$ of directions, where $A$ is a finite subset of $\mathbb{Z}^2$. Consequently, the techniques of discrete tomography often find application in areas where only a small number of projections are available. In 1978 M.B. Katz gave a necessary and sufficient condition for the uniqueness of the solution. Since then, several reconstruction methods have been introduced. Recently Pagani and Tijdeman developed a fast method to reconstruct $f$ if it is uniquely determined. Subsequently Ceko, Pagani and Tijdeman extended the method to the reconstruction of a function with the same line sums of $f$ in the general case. Up to here we assumed that the line sums are exact. In this paper we investigate the case where a small number of line sums are incorrect as may happen when discrete tomography is applied for data storage or transmission. We show how less than $d/2$ errors can be corrected and that this bound is the best possible.

Ceko, M.

September 21, 2023

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HRJ

[Hardy-Ramanujan Journal]

HRJ

Hardy-Ramanujan Journal

Created in 1978, Hardy-Ramanujan Journal is a peer-reviewed journal. Published by the Hardy-Ramanujan Society, it publishes articles in English in fundamental mathematics, more specifically in number theory.

Director of publication: C.S. Aravinda
Editors-in-chief: C.S. Aravinda ; Atul Dixit ; Kotyada Srinivas
Medium: electronic
Frequency: annual
Date created: 1978
Date of publication on Episciences: 2014
eISSN: 2804-7370
Subjects: mathematics, number theory
Languages of publication: English

Review process: single blind peer review
CC BY 4.0 licence

Publisher: Hardy-Ramanujan Society
- Address: Bhavana Trust, No.24, `Athreya’ 21st Main, 2nd Block, BSK I Stage BANGALORE — 560 050
- Country: India
Contact: hrj AT episciences.org

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Latest articles

A modular relation involving a generalized digamma function and asymptotics of some integrals containing Ξ(t)

A modular relation of the form $F(\alpha, w)=F(\beta, iw)$, where $i=\sqrt{-1}$ and $\alpha\beta=1$, is obtained. It involves the generalized digamma function $\psi_w(a)$ which was recently studied by the authors in their work on developing the theory of the generalized Hurwitz zeta function $\zeta_w(s, a)$. The limiting case $w\to0$ of this modular relation is a famous result of Ramanujan on page $220$ of the Lost Notebook. We also obtain asymptotic estimate of a general integral involving the Riemann function $\Xi(t)$ as $\alpha\to\infty$. Not only does it give the asymptotic estimate of the integral occurring in our modular relation as a corollary but also some known results.

Dixit, Atul

February 06, 2023

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A Generalization of Iseki's Formula and The Jacobi Theta Function

In this paper we give a generalization of Iseki's formula and use it to prove the transformation law of $\theta_1(z,\tau)$.

Me'Meh, Maher

February 06, 2023

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JDMDH

[Journal of Data Mining and Digital Humanities]

JDMDH

Journal of Data Mining and Digital Humanities

Created in 2014, the Journal of Data Mining and Digital Humanities (JDMDH) is situated at the intersection of data mining and digital humanities. The articles published concern both knowledge extraction and management (network analysis, information extraction, semantic web, preference analysis, machine learning) and the humanities and social sciences (historical, political, linguistic, sociological, geographical, communication and archiving) in the digital age.

Director of publication: Bruno Sportisse
Editors-in-chief: Richi Nayak ; Laurent Romary ; Nicolas Turenne
Medium: electronic
Frequency: continuous
Date created: 2014
Date of publication on Episciences: 2014
eISSN: 2416-5999
Subjects: social sciences and humanities, digital humanities, text mining
Languages of publication: English, French

Review process: single blind peer review
CC BY 4.0 licence

Publisher: Inria
- Address: Domaine de Voluceau Rocquencourt – B.P. 105 78153 Le Chesnay Cedex
- Country: France
Contact: jdmdh AT episciences.org

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Latest articles

The Effects of Political Martyrdom on Election Results: The Assassination of Abe

In developed nations assassinations are rare and thus the impact of such acts on the electoral and political landscape is understudied. In this paper, we focus on Twitter data to examine the effects of Japan's former Primer Minister Abe's assassination on the Japanese House of Councillors elections in 2022. We utilize sentiment analysis and emotion detection together with topic modeling on over 2 million tweets and compare them against tweets during previous election cycles. Our findings indicate that Twitter sentiments were negatively impacted by the event in the short term and that social media attention span has shortened. We also discuss how "necropolitics" affected the outcome of the elections in favor of the deceased's party meaning that there seems to have been an effect of Abe's death on the election outcome though the findings warrant further investigation for conclusive results.

Takagi, Miu Nicole

September 22, 2023

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Interactive Analysis and Visualisation of Annotated Collocations in Spanish (AVAnCES)

Phraseology studies have been enhanced by Corpus Linguistics, which has become an interdisciplinary field where current technologies play an important role in its development. Computational tools have been implemented in the last decades with positive results on the identification of phrases in different languages. One specific technology that has impacted these studies is social media. As researchers, we have turned our attention to collecting data from these platforms, which comes with great advantages and its own challenges. One of the challenges is the way we design and build corpora relevant to the questions emerging in this type of language expression. This has been approached from different angles, but one that has given invaluable outputs is the building of linguistic corpora with the use of online web applications. In this paper, we take a multidimensional approach to the collection, design, and deployment of a phraseology corpus for Latin American Spanish from Twitter data, extracting features using NLP techniques, and presenting it in an interactive online web application. We expect to contribute to the methodologies used for Corpus Linguistics in the current technological age. Finally, we make this tool publicly available to be used by any researcher interested in the data itself and also on the technological tools developed here.

Gonzalez, Simon

September 22, 2023

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jGCC

[journal of Groups, Complexity, Cryptology]

jGCC

journal of Groups, Complexity, Cryptology

The journal of Groups, Complexity, Cryptology (jGCC) is the continuation of the journal Groups, Complexity, Cryptology created in 2009. A peer-reviewed biannual journal, jGCC publishes research articles in the fields of combinatorial and computational group theory, complexity theory and cryptology.

Director of publication: Murray Elder
Editors-in-chief: Murray Elder ; Vladimir Shpilrain
Medium: electronic
Frequency: biannual
Date created: 2009
Date of publication on Episciences: 2020
eISSN: 1869-6104
Subjects: combinatorial and computational group theory, complexity theory, cryptology
Language of publication: English

Review process: single blind peer review
CC BY 4.0 licence

Contact: gcc-contact AT episciences.org

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Latest articles

Bounding conjugacy depth functions for wreath products of finitely generated abelian groups

In this article, we study the asymptotic behaviour of conjugacy separability for wreath products of abelian groups. We fully characterise the asymptotic class in the case of lamplighter groups and give exponential upper and lower bounds for generalised lamplighter groups. In the case where the base group is infinite, we give superexponential lower and upper bounds. We apply our results to obtain lower bounds for conjugacy depth functions of various wreath products of groups where the acting group is not abelian.

Ferov, Michal

September 28, 2023

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An axiomatization for the universal theory of the Heisenberg group

The Heisenberg group, here denoted $H$, is the group of all $3\times 3$ upper unitriangular matrices with entries in the ring $\mathbb{Z}$ of integers. A.G. Myasnikov posed the question of whether or not the universal theory of $H$, in the language of $H$, is axiomatized, when the models are restricted to $H$-groups, by the quasi-identities true in $H$ together with the assertion that the centralizers of noncentral elements be abelian. Based on earlier published partial results we here give a complete proof of a slightly stronger result.

Gaglione, Anthony M.

August 31, 2023

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JIMIS

[Journal of Interdisciplinary Methodologies and Issues in Science]

JIMIS

Journal of Interdisciplinary Methodologies and Issues in Science

Created in 2016, Journal of Interdisciplinary Methodologies and Issues in Science (JIMIS) is an interdisciplinary journal crossing scientific views between humanities and social sciences and exact and experimental sciences. Supported by the UMR Espace, the publication addresses transversal, thematic or methodological themes in the form of transdisciplinary special issues. The articles are published in English and French on a rolling basis.

Director of publication: Didier Josselin
Editor-in-chief: Didier Josselin
Medium: electronic
Frequency: continuous
Date created: 2016
Date of publication on Episciences: 2016
eISSN: 2430-3038
Subject: interdisciplinary
Languages of publication: English, French

Review process: single blind peer review
CC BY 4.0 licence

Publisher: UMR7300 Espace
- Address: 74 rue Louis Pasteur, 84029 Avignon Cedex
- Country: France
Contact: jimis AT espisciences.org

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Latest articles

Le projet architectural à travers une pensée croisée entre l'art et la science

L’enseignement de l’architecture se présente comme un carrefour d’échange interdisciplinaire, qui ne se base pas seulement sur le volet pratique, mais qui comporte une approche théorique faisant appel aux notions et références développées dans les cours théoriques. Il se présente ainsi comme un laboratoire de recherche et d’expérimentation sur l’architecture dans son écriture extérieure et intérieure en tant que discipline intégrant la forme et l’espace, développant des approches pédagogiques interactives et complémentaires. Le choix d’un dispositif pédagogique comme prétexte pour aborder l’interdisciplinarité dans le projet architectural devrait en conséquence être bien réfléchi avec un cheminement méthodologique ciblé qui permettrait d’explorer la synergie entre architecture et ingénierie, architecture et design de l’espace, architecture et sculpture, architecture et urbanisme. Faire intervenir les spécialistes tels que plasticien, ingénieur, historien, sociologue, conservateur du patrimoine et urbaniste dans la conception d’un projet architectural ne peut qu’enrichir les connaissances de l’apprenant et développer chez lui un esprit de collaboration et d’échange.

Zair, Kaouthar

September 28, 2023

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Espaces odorants et espaces olfactifs

Attester le partage d'une expérience olfactive par plusieurs individus est une gageure, du fait d'obstacles théoriques et méthodologiques souvent présentés comme irréductibles. Après une brève discussion de la réalité de cette irréductibilité, nous essayons de surmonter certains de ces obstacles en distinguant espaces odorants et espaces olfactifs. Si un espace odorant peut-être objectivé et donc partagé, il n'en va pas de même d'un espace olfactif qui relève d'une expérience subjective. Cependant, l'effet invasif des molécules odorantes, plus spécifiquement celles qui provoquent des « mauvaises odeurs », est de nature à atténuer cette subjectivité et, du même coup, à faciliter le partage d'un espace olfactif. Notre argumentation prend appui sur des enquêtes ethnographiques menées au Brésil, en Chine et en Inde et sur une recherche menée en géographie sur la spatialisation des nuisances olfactives.

Hassine, Jamel, Ben

September 26, 2023

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JIPS

[Journal d’Interaction Personne-Système]

JIPS

Journal d’Interaction Personne-Système

Created in 2008 by the Association francophone d’interaction humain-machine, the Journal d’Interaction Personne-Système (JIPS) succeeded the Revue d’Interaction Homme-Machine (RIHM), itself founded in 1997 and active until 2007 (then becoming the Revue des Interactions Humaines Médiatisées).

JIPS ceased publication in April 2022; published articles remain accessible on the journal’s website.

Director of publication: Sophie Dupuy-Chessa
Medium: electronic
Collection: 2010-2020
Date created: 2008
Date of publication on Episciences: 2008
eISSN: 2418-1838
Subjects: computer science, engineering, technology, cognitive science
Languages of publication: English, French
CC BY 4.0 licence
Publisher: Association Francophone d’Interaction Homme-Machine (AFIHM)
- Address: 385 rue de la Bibliothèque, 38041 Grenoble Cedex
- Country: France

Contact: presidence AT afihm.org

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Latest articles

Processus de changement de comportement : états, transitions et déterminants du comportement

Si le but et les garde-fous éthiques de la persuasion sont aujourd’hui bien compris, la littérature est abondante et les analyses critiques multiples, sans qu’un langage de comparaison n’ait été défini. Cet article propose les concepts d’états, de transitions et de déterminants pour caractériser les travaux de la littérature et ainsi en faciliter la compréhension et la comparaison. L’opérationnalisation de ce cadre ouvre des perspectives intéressantes au domaine.

Fenicio, Alessandro

February 08, 2021

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L’adaptation pour une persuasion durable

Persuader est difficile ; persuader sur la durée l’est encore plus. Nous explorons l’adaptation pour apporter de la variété et de la pertinence à la persuasion et ainsi pallier l’usure de l’efficacité des messages persuasifs. Le cas d’étude est TILT, un dispositif persuasif pour la régulation du temps d’usage du smartphone. La persuasion de TILT s’appuie sur le principe d’auto-surveillance. L’expérimentation démontre la pertinence de l’adaptation du message persuasif comme renfort de l’efficacité du principe d’auto-surveillance dans le temps.

Foulonneau, Anthony

January 22, 2021

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JNSAO

[Journal of Nonsmooth Analysis and Optimization]

JNSAO

Journal of Nonsmooth Analysis and Optimization

Established in 2019, the Journal of Nonsmooth Analysis and Optimization (JNSAO) publishes articles in English on all aspects of nonsmooth analysis related to optimization and equilibrium problems.

Director of publication: Christian Clason
Editors-in-chief: Christian Clason ; Tuomo Valkonen
Medium: electronic
Frequency: continuous
Date created: 2019
Date of publication on Episciences: 2019
eISSN: 2700-7448
Subjects: variational analysis, theory and algorithms for nonsmooth optimization and equilibrium problems, robust and chance-constrained stochastic optimization
Language of publication: English
Review process: single blind peer review
CC BY 4.0 licence

Contact: jnsao AT episciences.org

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Latest articles

Proximal methods for point source localisation

Point source localisation is generally modelled as a Lasso-type problem on measures. However, optimisation methods in non-Hilbert spaces, such as the space of Radon measures, are much less developed than in Hilbert spaces. Most numerical algorithms for point source localisation are based on the Frank-Wolfe conditional gradient method, for which ad hoc convergence theory is developed. We develop extensions of proximal-type methods to spaces of measures. This includes forward-backward splitting, its inertial version, and primal-dual proximal splitting. Their convergence proofs follow standard patterns. We demonstrate their numerical efficacy.

Valkonen, Tuomo

September 21, 2023

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Optimal Control of a Viscous Two-Field Damage Model with Fatigue

Motivated by fatigue damage models, this paper addresses optimal control problems governed by a non-smooth system featuring two non-differentiable mappings. This consists of a coupling between a doubly non-smooth history-dependent evolution and an elliptic PDE. After proving the directional differentiability of the associated solution mapping, an optimality system which is stronger than the one obtained by classical smoothening procedures is derived. If one of the non-differentiable mappings becomes smooth, the optimality conditions are of strong stationary type, i.e., equivalent to the primal necessary optimality condition.

Betz, Livia

August 11, 2023

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J. Philos. Econ.

[Journal of Philosophical Economics]

J. Philos. Econ.

Journal of Philosophical Economics

Journal of Philosophical Economics is a social science journal founded in 2007. Published by Editura ASE, J. Philos. Econ. publishes one volume per year containing articles and book reviews in German, English or French.

Director of publication: Dr. Simona Bușoi
Editor-in-chief: Valentin Cojanu
Medium: print and electronic
Frequency: annual
Date created: 2007
Date of publication on Episciences: 2021
eISSN: 1844-8208
Subjects: Social sciences, Philosophy, Economic theory
Languages of publication: English, French, German

Review process: single blind peer review
CC BY-NC-SA 4.0 licence

Publisher: Editura ASE
- Address: Academia de Studii Economice Bucuresti, Piata Romana 6, 010374 Bucuresti
- Country: Romania
Contact: jpe AT episciences.org

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Latest articles

Ways of Knowing Agency and Development: notes on the philosophy of science and the conduct and use of inquiry

Development is a value-laden concept and, as such, an essentially contested issue. To different extents, different ideas of development entail different assumptions about human agency. Although economics has been the most influential discipline, increasingly different accounts highlight distinct features of human beings and the contexts they inhabit, which lead to different implications. This article seeks to delineate the boundaries of the discussion and map out what are arguably the main alternatives within the field. Since such discussion deals with the question of what human action is, the argument is elaborated from the philosophy of science. Contra convention, the discussion uses a philosophical ontology, which is concerned with out connection to the world. Jackson’s heuristic is adopted to generate four philosophies of science and four notions of agency, regarded as ideal typical. Neopositivism advances a rational agent, reflexivity suggests a patient, critical realism furthers an interagent, and analyticism proposes a transagent. This article invites scholars and practitioners interested in this increasingly interdisciplinary area to raise their awareness regarding the foundations on which their ideas about human agency build and note the implications they have for the production and consumption of knowledge.

Garcés-Velástegui, Pablo

April 25, 2023

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Lehmann’s Analytical Inconsistencies on Liberalism and Capitalism

Review of Lehmann, P.-J., Liberalism and Capitalism Today, London, Hoboken: ISTE-Wiley, 2021, 214 pp, ISBN 978-1-78630-689-0

Văduva, Ionuț

February 13, 2023

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Mechanical engineering

JTCAM

[Journal of Theoretical, Computational and Applied Mechanics]

JTCAM

Journal of Theoretical, Computational and Applied Mechanics

Established in 2021, Journal of Theoretical, Computational and Applied Mechanics (JTCAM) welcomes research in English in the field of solid mechanics and mechanics of materials and structures. The journal publishes theoretical, numerical, applied and experimental research contributions on an ongoing basis.

Director of publication: Bruno Sportisse
Editorial Board: Laurence Brassart ; Shaocheng Ji ; Anna Pandolfi ; Alexander Popp ; Julien Réthoré ; Olivier Thomas ; Laszlo S. Toth
Medium: electronic
Frequency: continuous
Date created: 2021
Date of publication on Episciences: 2021
eISSN: 2726-6141
Subjects: Theoretical, Computational and Applied Mechanics
Language of publication: English
Review process: single blind or open peer review
CC BY 4.0 licence
Publisher: Inria
- Address: Domaine de Voluceau Rocquencourt, BP 105, 78153 Le Chesnay Cedex
- Country: France

Contact: jtcam AT episciences.org

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Latest articles

Crack branching at low tip speeds: spilling the T

Using the criterion that a crack will extend along the direction of maximum circumferential stress, this paper demonstrates the influence of the coupling between the crack-parallel T-stress and the tip speed on the directional (in)stability of dynamics cracks in brittle materials, i.e., branching, turning, and limiting velocities. The proposed (in)stability criterion evolves within the theory of dynamic fracture: we build on the work of Ramulu and Kobayashi (1983) by introducing a reference distance ahead of the crack-tip to incorporate the contribution of the higher-order terms in the asymptotic solution of the elastic crack-tip fields. The theoretical aspect is first explored, a methodology to numerically (and experimentally) advocate the instability—as a co-action of T-stress and a fast-running crack—is then proposed and validated on Borden et al. (2012)’s branching benchmark. An experimental setup combining Ultra-High-Speed High-Resolution imaging with advanced Digital Image Correlation algorithms and a novel crack-branching inertial impact test enables for never-seen-before quantification of the rich dynamical behaviour of the fracture. This permits the experimental validation of the developed crack (in)stability criterion.

Eid, Elie

August 17, 2023

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The average conformation tensor of inter-atomic bonds as an alternative state variable to the strain tensor: definition and first application — the case of nanoelasticity

Most of the mechanical models for solid state materials are in a methodological framework where a strain tensor, whatever it is, is considered as a thermodynamic state variable. As a consequence, the Cauchy stress tensor is expressed as a function of a strain tensor—and, in many cases, of one or more other state variables, such as the temperature. Such a choice for the kinematic state variable is clearly relevant in the case of infinitesimal or finite elasticity. However, one can ask whether an alternative state variable could not be considered. In the case of finite elastoplasticity, the choice of a strain tensor as the basic, kinematic state variable is not totally without issue, in particular in relation to the physical meaning of the internal state variable describing the permanent strains. In any case, this paper proposes an alternative to the strain tensor as a state variable, which is not based on the deformation (Lagrangian) gradient: the average conformation tensor of inter-atomic bonds. The purpose, however, is restricted to (1) a particular type of materials, namely the pure substances (copper or aluminum, for instance), (2) the nanoscale, and (3) the case of elasticity. The very simple case of two atoms of a pure substance in the solid state is first considered. It is shown that the kinematics of the inter-atomic bond can be characterized by a so called ``conformation'' tensor, and that the tensorial internal force acting on it can be immediately deduced from a single scalar function, depending only on the conformation tensor: the state potential of free energy (or interaction potential). Using an averaging procedure, these notions are then extended to a finite set of atoms, namely an atom and its first neighbours, which can be seen as the ``unit cell'' of a pure substance in the solid state considered as a discrete medium. They are also transposed to the Continuum case, where an expression of the Cauchy stress tensor is proposed as the first derivative of a state potential of density (per unit mass) of average free energy of inter-atomic bonds, which is an explicit function of the average conformation tensor of inter-atomic bonds. By applying a standard procedure in Continuum Thermodynamics, it is then shown that the objective part of the material derivative of this new state variable, at least in the case when the pure substance can be considered as an elastic medium, is equal to the symmetric part of the Eulerian velocity gradient, that is the rate of deformation tensor. In the case of uniaxial tension, a simple relationship is eventually set out between the average conformation tensor and a strain tensor, which is correctly approximated by the usual infinitesimal strain tensor as long as the conformation variations (from an initial state of conformation) are ``small''. From this latter result, and assuming an elastic behavior, a simple expression for the state potential of density of average free energy is inferred, showing great similarities with—but not equivalent to—the classical model of isotropic, linear elasticity (Hooke's law).

Désoyer, Thierry

June 05, 2023

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LMCS

[Logical Methods in Computer Science]

LMCS

Logical Methods in Computer Science

Logical Methods in Computer Science (LMCS) publishes research articles in English on theoretical and practical areas of computer science involving logical methods, taken in a broad sense. Established in 2014, the journal is edited by Logical Methods in Computer Science e.V., a non-profit organisation whose aim is to facilitate the dissemination of scientific results related to logic in computer science.

Director of publication: Lars Birkedal
Editor-in-chief: Stefan Milius
Medium: electronic
Frequency: continuous
Date created: 2014
Date of publication on Episciences: 2015
eISSN: 1860-5974
Subjects: computer science, logical methods
Languages of publication: English

Review process: single blind peer review
CC BY 4.0 licence

Publisher: Logical Methods in Computer Science e.V.
- Country: Germany
Contact: lmcs AT episciences.org

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Latest articles

Answer Counting under Guarded TGDs

We study the complexity of answer counting for ontology-mediated queries and for querying under constraints, considering conjunctive queries and unions thereof (UCQs) as the query language and guarded TGDs as the ontology and constraint language, respectively. Our main result is a classification according to whether answer counting is fixed-parameter tractable (FPT), W[1]-equivalent, #W[1]-equivalent, #W[2]-hard, or #A[2]-equivalent, lifting a recent classification for UCQs without ontologies and constraints due to Dell et al. The classification pertains to various structural measures, namely treewidth, contract treewidth, starsize, and linked matching number. Our results rest on the assumption that the arity of relation symbols is bounded by a constant and, in the case of ontology-mediated querying, that all symbols from the ontology and query can occur in the data (so-called full data schema). We also study the meta-problems for the mentioned structural measures, that is, to decide whether a given ontology-mediated query or constraint-query specification is equivalent to one for which the structural measure is bounded.

Feier, Cristina

September 14, 2023

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Arboreal Categories: An Axiomatic Theory of Resources

Game comonads provide a categorical syntax-free approach to finite model theory, and their Eilenberg-Moore coalgebras typically encode important combinatorial parameters of structures. In this paper, we develop a framework whereby the essential properties of these categories of coalgebras are captured in a purely axiomatic fashion. To this end, we introduce arboreal categories, which have an intrinsic process structure, allowing dynamic notions such as bisimulation and back-and-forth games, and resource notions such as number of rounds of a game, to be defined. These are related to extensional or "static" structures via arboreal covers, which are resource-indexed comonadic adjunctions. These ideas are developed in a general, axiomatic setting, and applied to relational structures, where the comonadic constructions for pebbling, Ehrenfeucht-Fra\"iss\'e and modal bisimulation games recently introduced by Abramsky et al. are recovered, showing that many of the fundamental notions of finite model theory and descriptive complexity arise from instances of arboreal covers.

Abramsky, Samson

August 10, 2023

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MNA

[Mathematical Neuroscience and Applications]

MNA

Mathematical Neuroscience and Applications

Established in 2021, the journal Mathematical Neuroscience and Applications (MNA) focuses on mathematical modelling and analysis in all areas of neuroscience, i.e. the study of the nervous system and its dysfunctions. It is a continuation of the Journal of Mathematical Neuroscience (2011-2021), previously published by Springer. The journal welcomes articles in English.

Director of publication: Bruno Sportisse
Editor-in-chief: Olivier Faugeras
Medium: electronic
Frequency: annual
Date created: 2021
Date of publication on Episciences: 2021
eISSN: 2801-0159
Subjects: mathematics, neuroscience
Languages of publication: English
Review process: single blind peer review
CC BY 4.0 licence
Publisher: Inria
- Address: Domaine de Voluceau Rocquencourt – B.P. 105 78153 Le Chesnay Cedex
- Country: France
Contact: mna AT episciences.org

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Latest articles

Propagation of chaos in mean field networks of FitzHugh-Nagumo neurons

In this article, we are interested in the behavior of a fully connected network of $N$ neurons, where $N$ tends to infinity. We assume that the neurons follow the stochastic FitzHugh-Nagumo model, whose specificity is the non-linearity with a cubic term. We prove a result of uniform in time propagation of chaos of this model in a mean-field framework. We also exhibit explicit bounds. We use a coupling method initially suggested by A. Eberle (arXiv:1305.1233), and recently extended in (1805.11387), known as the reflection coupling. We simultaneously construct a solution of the $N$-particle system and $N$ independent copies of the non-linear McKean-Vlasov limit in such a way that, considering an appropriate semi-metric that takes into account the various possible behaviors of the processes, the two solutions tend to get closer together as $N$ increases, uniformly in time. The reflection coupling allows us to deal with the non-convexity of the underlying potential in the dynamics of the quantities defining our network, and show independence at the limit for the system in mean field interaction with sufficiently small Lipschitz continuous interactions.

Colombani, Laetitia

June 19, 2023

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Gabor frames from contact geometry in models of the primary visual cortex

We analyze the interplay between contact geometry and Gabor filters signal analysis in geometric models of the primary visual cortex. We show in particular that a specific framed lattice and an associated Gabor system is determined by the Legendrian circle bundle structure of the $3$-manifold of contact elements on a surface (which models the V1-cortex), together with the presence of an almost-complex structure on the tangent bundle of the surface (which models the retinal surface). We identify a scaling of the lattice, also dictated by the manifold geometry, that ensures the frame condition is satisfied. We then consider a $5$-dimensional model where receptor profiles also involve a dependence on frequency and scale variables, in addition to the dependence on position and orientation. In this case we show that a proposed profile window function does not give rise to frames (even in a distributional sense), while a natural modification of the same generates Gabor frames with respect to the appropriate lattice determined by the contact geometry.

Liontou, Vasiliki

June 06, 2023

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MOS

[Management et organisations du sport]

MOS

Management et organisations du sport

Scientific journal of the Société Savante de Management du Sport, Management & Organisations du Sport (MOS), created in 2020, offers research articles in English and French. Published on an ongoing basis, the articles address multiple facets of sport organisation and management through different disciplinary perspectives.

Director of publication: Patrick Bouchet
Editor-in-chief: Guillaume Bodet
Medium: electronic
Frequency: continuous
Date created: 2020
Date of publication on Episciences: 2020
eISSN: 2804-8598
Subjects: sport management, management sciences
Languages of publication: English, French

Review process: single blind peer review
CC BY 4.0 licence

Publisher: Société Savante de Management du Sport (S2MS)
- Address: 27/29 boulevard du 11 novembre 1918, 69622 Villeurbanne Cedex
- Country: France
Contact: mos AT episciences.org

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Latest articles

Les projets olympiques au service des politiques sportives partenariales. Le cas de la Fédération française de cyclisme et de la communauté d'agglomération de Saint-Quentin-en-Yvelines

Le présent article interroge la capacité des candidatures olympiques à créer les conditions de l'articulation entre les politiques sportives fédérales et locales. Il s'appuie sur un cas d'étude portant sur la relation entre Saint-Quentin-en-Yvelines (un territoire intercommunal situé à 20 kilomètres de Paris) et la Fédération française de cyclisme entre 2000 et 2020. La contribution retrace le processus de collaboration entre ces deux organisations dans les contextes de candidature parisienne aux Jeux Olympiques et Paralympiques de 2012 et de 2024. En s'appuyant sur la force explicative des dynamiques locales, les auteurs mobilisent la théorie des flux de Kingdon (1984) pour souligner le rôle déterminant des candidatures olympiques dans la convergence des flux des problèmes, de la politique et des politiques publiques. Celles-ci favorisent donc l'ouverture de fenêtres d'opportunité vers la mise en place de politiques sportives partenariales.

Lopez, Clément

August 31, 2023

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Revisiting innovation: the organizational vulnerability of small or medium companies innovating in the outdoor sports sector

Au sein de l’industrie des articles de sport, il est convenu d’affirmer que l’innovation est susceptible de procurer un avantage concurrentiel. Il s’agit cependant aussi d’une activité risquée qui peut entraîner des conséquences moins vertueuses pour les entreprises. Quitte à s’inscrire à contre-courant de l’injonction contemporaine à innover, il semble pertinent de s’intéresser aux potentiels effets néfastes des processus d’innovation au sein des petites entreprises du secteur du sport, particulièrement créatives. Dans cet article, nous cherchons donc à savoir si, et le cas échéant comment, l’engagement dans un processus d’innovation conduit à des formes singulières de vulnérabilité organisationnelle.Des études de cas ont été réalisées dans cinq entreprises françaises spécialisées dans l’outdoor (trois PME et deux TPE). Nous avons mené un total de 48 entretiens avec différents acteurs des processus d’innovation, accompagnés d’observations de terrain et d’analyses de données secondaires. Plusieurs résultats marquants ressortent. La priorité fréquemment donnée à la réponse aux défis techniques est susceptible d’éloigner le produit du client et de son utilisation réelle. Dans certains cas, une forme de « fièvre de l’innovation » génère des déséquilibres internes. Par ailleurs, certaines entreprises sont trop dépendantes de l’inventeur-entrepreneur, acteur clé de leur fonctionnement, mais aussi de son réseau de proximité ; cela peut impliquer un affaiblissement du réseau d’innovation, notamment lors de la phase cruciale de découplage. Enfin, si la création de réseaux d’innovation est nécessaire, elle accentue la dépendance vis-à-vis des parties prenantes et expose à des menaces spécifiques.En termes d’implications managériales, il ressort qu’une confiance excessive dans les avantages de l’innovation peut s’avérer problématique. Il ne s’agit pas de décourager les innovateurs, mais de rappeler la nature contingente et incertaine des processus dans lesquels ils s’engagent, ce qui nécessite anticipation et mesure. Le défi consiste à gérer à la fois le présent et l’avenir, tout en reconnaissant que l’exploitation d’une routine n’empêche pas l’exploration de nouvelles solutions.

Soulé, Bastien

July 28, 2023

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OCNMP

[Open Communications in Nonlinear Mathematical Physics]

OCNMP

Open Communications in Nonlinear Mathematical Physics

Created in 2020, Open Communications in Nonlinear Mathematical Physics (OCNMP) is a mathematical journal focusing on nonlinear problems in mathematical physics. It publishes annual articles in English.

Director of publication: Norbert Euler
Editor-in-chief: Norbert Euler
Medium: electronic
Frequency: annual
Date created: 2020
Date of publication on Episciences: 2021
eISSN: 2802-9356
Subjects: mathematics, mathematical physics, non-linear sciences
Languages of publication: English
Review process: single blind peer review
CC BY 4.0 licence

Contact: ocnmp AT episciences.org

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Latest articles

Derivation of Painlevé type system with $D_4^{(1)}$ affine Weyl group symmetry in a self-similarity limit

We show how the zero-curvature equations based on a loop algebra of $D_4$ with a principal gradation reduce via self-similarity limit to a polynomial Hamiltonian system of coupled Painlev\'e III models with four canonical variables and $D_4^{(1)}$ affine Weyl group symmetry.

Aratyn, H.

September 06, 2023

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Integrable Ito equations and properties of the associated Fokker-Planck equations

In a recent paper we have classified scalar Ito equations which admits a standard symmetry; these are also directly integrable by the Kozlov substitution. In the present work, we consider the diffusion (Fokker-Planck) equations associated to such symmetric Ito equations.

Gaeta, Giuseppe

June 21, 2023

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RDM

[Recherche en Didactique des Mathématiques]

RDM

Recherche en Didactique des Mathématiques

Coming soon

Founded in 1980, Recherches en Didactique des Mathématiques is an international journal of fundamental research in the didactics of mathematics. Edited by the Association pour la Recherche en Didactique des Mathématiques, it publishes articles in English, French and Spanish three times a year.

Director of publication: Marie-Line Gardes
Editorial manager: Cécile Ouvrier-Buffet
Editors-in-chief: Nicolas Grenier-Boley and Sophie Soury-Lavergne
Medium: electronic
Frequency: three volumes per year
Date created: 1980
Date of publication on Episciences: 2023
eISSN: 2728-2422
Subjects: applied mathematics, didactics of mathematics
Languages of publication: English, French, Spanish

Review process: single blind peer review
CC BY 4.0 licence

Publisher: Association pour la Recherche en Didactique des Mathématiques (ARDM)
- Address: Institut Henri Poincaré, 11 rue Pierre et Marie Curie, 75005 Paris
- Country: France
Contact: rdm AT episciences.org

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Slovo

The annual journal Slovo (word, parole or verb in Russian and other Slavic languages) publishes articles on the languages, literatures, cultures and civilisations of the peoples of the post-Soviet space (Slavic, Siberian, Finno-Ugric, Caucasian, Baltic or Central Asian) and of Central and Balkan Europe. Created in 1978 and published by the Presses de l’Inalco, the journal is both multi-area and transdisciplinary, covering most of the disciplines of the humanities and social sciences.

Director of publication: Jean-François Huchet
Editors-in-chief: Catherine Géry ; Marie Vrinat-Nikolov
Medium: print and electronic
Frequency: annual
Date created: 1978
Date of publication on Episciences: 2017
eISSN: 2557-9851
Subjects: anthropology, arts, history, linguistics, literature, social sciences
Languages of publication: English, French

Review process: peer review
CC BY-NC-ND 4.0 licence

Publisher: Presses de l’Inalco
- Address: 2 rue de Lille, 75007 Paris
- Country: France
Contact: slovo AT episciences.org

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Latest articles

La réception en France de la musique soviétique : l'évolution de la censure de 1948 à 1958

Cet article étudie la réception en France des discours des autorités soviétiques sur la musique. La période de l’après-guerre est intéressante à plus d’un titre. Le paysage politique évolue avec les décès de Jdanov et Staline et deux décrets relatifs à la production musicale sont publiés en 1948 et 1958. Les bulletins de presse du ministère des Affaires étrangères et la production journalistique et intellectuelle à prétention savante du PCF sont des indicateurs de la réception de la musique soviétique dans l’espace public français. Nous apprécions l’évolution de la censure en URSS grâce aux discours en France sur le musicien professionnel et l’opéra soviétiques. La censure en URSS n’ayant pas toujours été maîtrisée, il convient de questionner le rôle des intellectuels communistes soviétiques et français. Nous appréhendons ainsi le réalisme socialiste en musique, mais aussi les désaccords que produit l’application de tels principes idéologiques. Bien que les sympathisants français traitent abondamment les actualités musicales soviétiques, on est amené à observer des divergences d’opinion, résultats de la diversité des cadres éditoriaux.

Thisselin, Thomas

May 23, 2023

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In vino veritas ou faut-il boire pour comprendre Erofeev ?: Remarques à propos de l’enregistrement sonore de la lecture publique de Moscou-sur-Vodka par Erofeev

Cet article a pour objet l’élaboration d’une piste d’intégration de l’enregistrement sonore de la lecture d’un texte par son auteur dans le cadre de recherches en littérature. Le texte se penche plus précisément sur l’enregistrement de la lecture de Moscou-sur-vodka par Venedikt Erofeev en 1980. Cet enregistrement renvoie à la problématique de l’interprétation littéraire et de la voix. En effet, par la double intervention d’Erofeev, lors de la rédaction puis la lecture publique du texte, cet enregistrement pourrait possiblement restreindre la diversité interprétative de l’œuvre. Pourtant, le contexte et la nature de cette lecture publique ne mènent pas nécessairement à l’écueil de l’interprétation strictement centrée sur l’auteur. Cette lecture enregistrée à haute voix d’Erofeev s’apparente plutôt à un rappel de la vocalité intrinsèque de l’œuvre – un aspect du texte qui peut se perdre lors de la lecture silencieuse répétée.

Lakine, Denis

May 23, 2023

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Sociétés plurielles

The journal Sociétés plurielles, created in 2017, is the result of the research programme of the same name associating several universities in Île-de-France within the COMUE Sorbonne Paris Cité. Published by the Presses de l’Inalco, it welcomes articles in French, English, Spanish, German and Italian. The journal covers all fields of study concerned with the plural in society and strongly supports interdisciplinary approaches.

Director of publication: Jean-François Huchet
Editor-in-chief: Madalina Vartejanu-Joubert
Medium: electronic
Frequency: annual
Date created: 2017
Date of publication on Episciences: 2017
eISSN: 2557-9959
Subjects: anthropology, area studies, history, sociology, socio-linguistics
Languages of publication: English, French

Review process: peer review
CC BY-NC 4.0 licence

Publisher: Presses de l’Inalco
- Address: 2 rue de Lille, 75007 Paris
- Country: France
Contact: societes-plurielles AT episciences.org

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Latest articles

L’archéologie au service des identités nationales : pourquoi faudrait-il détruire les collections de moulages d’art antique ?

À l’instar de l’Allemagne et à partir des années 1870, le moulage d’art antique fait l’objet d’un véritable « transfert culturel » en France et en Italie. Ce processus qui témoigne de l’émergence de l’archéologie en tant que science, s’insère dans le cadre plus vaste d’une modification de l’enseignement supérieur et d’une construction (dans le cas de l’Italie) ou d’un redressement de la nation (en France). Cependant, le processus de consolidation de l’État-nation se fonde sur un autre mécanisme culturel engendré par la mondialisation‑globalisation, à savoir l’« invention de la tradition ». Tels sont les cas notamment du « mythe de la Grèce blanche » ou de celui de la « Romanité » qui peuvent offrir des arguments suffisants pour justifier la destruction des collections de moulages d’art antique.

Avola, Irene

May 10, 2023

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Biais socio-centrés et constructions de l’altérité: Pour une approche anthropologique critique et raisonnée

Le retour sur les héritages coloniaux et les autres formes de domination rendent nécessaires l’approche critique des positions d’autorité fondant le discours scientifique. Quelles seraient les conditions de possibilité d’un savoir faisant droit à des formes alternatives de connaissance du monde et de discours à son sujet ? Toute approche n’apporte-t-elle pas ses biais dans le projet d’un savoir universel ? La réflexion repose sur une enquête ethnographique (Wallis) et le débat actuel sur la restitution, par les anciens pays coloniaux, des collections muséales africaines.

Chave-Dartoen, Sophie

May 10, 2023

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