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36.225  Articles
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Let G be a connected plane graph with vertex set V and edge set E. For X ? {V, E, V ? E}, two elements of X are facially adjacent in G if they are incident elements, adjacent vertices, or facially adjacent edges (edges that are consecutive ... see more

Las áreas naturales protegidas mantienen relaciones ambientales, sociales y económicas con la zona de influencia que las rodea, de manera que las transformaciones en el paisaje, derivadas del uso de suelo no planificado en ésta, dan lugar a flujos negativ... see more

For a family of geometric objects in the plane F={S1,…,Sn}\mathcal{F}=\{S_1,\ldots,S_n\}, define ?(F)\chi(\mathcal{F}) as the least integer l\ell such that the elements of F\mathcal{F} can be colored with l\ell colors, in such a way that any two intersect... see more

Rapid worldwide spread of Corona virus Disease 2019 (COVID 19) has resulted in a global pandemic. In present scenario due to covid-19, the mask has been an important part of our live for our safety as well as for the others safety so there is a need for e... see more

A arborização é um elemento indispensável no ambiente urbano visto os benefícios das árvores e os problemas que podem ocorrer pela falta de planejamento. A pesquisa teve como objetivo identificar, catalogar, conservar e divulgar o material florestal dispo... see more

In this research, we built a system to detect fire using the ViBe (Visual Background Extractor) algorithm to extract dynamic targets.  The ViBe algorithm is better at detecting moving target objects such as flame combustion. In this research we combi... see more

On planar graphs, many classic algorithmic problems enjoy a certain ``square root phenomenon'' and can be solved significantly faster than what is known to be possible on general graphs: for example, Independent Set, 3-Coloring, Hamiltonian Cycle, Dominat... see more

We prove that for any point set P in the plane, a triangle T, and a positive integer k, there exists a coloring of P with k colors such that any homothetic copy of T containing at least 144k8 poi... see more

El cáncer colorrectal es la cuarta causa de muerte a nivel mundial y la quinta causa de muerte por cáncer en Colombia. La resonancia magnética es la modalidad ideal para la valoración del cáncer colorrectal, ya que permite la estadificación mediante la de... see more

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