With the development of next generation artificial intelligence, interplay between knowledge-based approaches and machine learning is gaining momentum. This trend drives researchers to pay attention possible novel developments in relevant areas, either based on their theoretical foundations or efficient applications. special issue collects newly developed works from logic, argumentation stimula...

Let G be a graph embedded in surface and let the set of all faces G. For given subset $$\mathcal F$$ even (faces bounded by an cycle), resonance with respect to $${\mathcal {F}}$$ , denoted $$R(G;\mathcal F)$$ is such that its vertex perfect matchings two vertices $$M_1$$ $$M_2$$ are adjacent if only symmetric difference $$M_1\oplus M_2$$ cycle bounding some face . It has been shown plane eleme...

La obtención de bioetanol es uno los retos más importantes en la generación biocombustibles amigables con el medio ambiente, búsqueda matrices que produzcan niveles altos este combustible representa un área estudio innovación tecnológica, donde desperdicio agroindustrial puede considerarse una alternativa para producción segunda a corto plazo evita incremento desperdicios vertederos y proporcio...

La nochebuena (Euphorbia pulcherrima Willd. ex Klotsch) crece de manera silvestre en los bosques tropicales mexicanos forma arbustiva y con brácteas rojas llamativas menor frecuencia presenta blancas. El uso principal la nativa es el ornamental, poco se ha estudiado acerca las propiedades nutrimentales o nutracéuticas planta. objetivo del presente estudio fue determinar perfil flavonoides ácido...

Using a simple but powerful geometrical/topological notion of aromaticity based on the shell model (Zdetsis, A. D. J. Phys. Chem. C 2018, 122, 17526–17536) and bipartite topology, we uncover, top geometrical virtual “equivalence” fundamental Hückel Clar rules aromaticity, significance empty peripheral rings, which are shown to be linked zigzag edge states. Such rings can thought as “inversion s...

Si la collaboration entre parents et professionnels est considérée comme un principe indispensable à scolarisation d’élèves institutionnellement déclarés besoins éducatifs particuliers, manière dont elle se décline effectivement reste une question vive. Cette contribution rend compte des premiers résultats d’une recherche plus l...

A edge 2-rainbow dominating function (E2RDF) of a graph G is a ‎function f from the edge set E(G) to the set of all subsets‎ ‎of the set {1,2} such that for any edge.......................