Results 1 to 10 of about 40,941 (129)

Grafos Associados aos Emparelhamentos de Arestas de Polígonos Regulares

open access: diamondTrends in Computational and Applied Mathematics, 2022
A combinação entre as cirurgias de emparelhamentos de arestas de polígonos regulares e a troca de arestas do grafo de emparelhamentos sobre a superfície, permite determinar de forma mais eficiente as famílias de grafos de emparelhamentos sobre ...
C. Mendes de Jesus
doaj   +3 more sources

Polígonos regulares [PDF]

open access: diamondRevista De Ciência Elementar, 2014
João Nuno Tavares, Angela Geraldo
exaly   +2 more sources

Teselando el plano con polígonos convexos

open access: yesRevista de Educación Matemática, 2022
En este articulo damos un panorama sobre la clasificación de los embaldosados del plano euclídeo por copias de un único polígono convexo (teselados monoedralesconvexos).
Ricardo A. Podestá
doaj   +1 more source

Estimating the cumulative impact and zone of influence of anthropogenic features on biodiversity

open access: yesMethods in Ecology and Evolution, Volume 14, Issue 9, Page 2362-2375, September 2023., 2023
Abstract The concept of cumulative impacts is widespread in policy documents, regulations and ecological studies, but quantification methods are still evolving. Infrastructure development usually takes place in landscapes with preexisting anthropogenic features. Typically, their impact is determined by computing the distance to the nearest feature only,
Bernardo Brandão Niebuhr   +9 more
wiley   +1 more source

A desigualdade isoperimétrica

open access: yesRevista Thema, 2022
Este artigo apresenta um recorte de uma dissertação do curso de Mestrado Profissional em Matemática em Rede Nacional – Profmat, que exibiu uma introdução histórica da desigualdade isoperimétrica e uma abordagem dela para o Ensino Médio.
Marcos Melo   +1 more
doaj   +1 more source

Local Earthquake Seismic Tomography Reveals the Link Between Crustal Structure and Volcanism in Tenerife (Canary Islands)

open access: yesJournal of Geophysical Research: Solid Earth, Volume 128, Issue 3, March 2023., 2023
Abstract Volcanic activity on Tenerife Island is extremely diverse. Three radial rift zones are characterized by cinder cones from basaltic fissure eruptions. A triple junction in central Tenerife exhibits a complex of merged, predominantly phonolitic, stratovolcanoes.
Ivan Koulakov   +8 more
wiley   +1 more source

Oil‐Based versus Bio‐Based C8 Alkyl Chain (Meth)Acrylates in Emulsion Polymerization: Kinetics and Microstructure

open access: yesMacromolecular Reaction Engineering, Volume 16, Issue 6, December 2022., 2022
The homopolymerization of the bio‐based 2‐octyl acrylate and methacrylate is compared with their oil‐based counterparts 2‐ethylhexyl acrylate and methacrylate. Using different characterization techniques it is found that the bio‐based monomers suffer from a higher rate of chain transfer to polymer, leading to a higher degree of long chain branching (in
Maria Barrenetxe   +5 more
wiley   +1 more source

Ladrilhamentos no plano: uma atividade para o Ensino Médio

open access: yesREMAT, 2016
Este trabalho apresenta uma experiência realizada com alunos do terceiro ano em uma escola do município de Canoas, tendo como foco o estudo dos possíveis ladrilhamentos no plano.
Leila Inês Pagliarini Mello
doaj   +3 more sources

Por que apenas 5 poliedros de Platão?

open access: yesREMAT, 2016
Este trabalho baseia-se no relato de uma experiência realizada com alunos do terceiro ano em uma escola do município de Canoas, tendo como foco o estudo dos poliedros de Platão.
Leila Inês Pagliarini Mello   +1 more
doaj   +3 more sources

Percutaneous Needle Electrolysis Reverses Neurographic Signs of Nerve Entrapment by Induced Fibrosis in Mice

open access: yesEvidence-Based Complementary and Alternative Medicine, Volume 2020, Issue 1, 2020., 2020
Nerve entrapments such as carpal tunnel syndrome are the most common mononeuropathies. The lesional mechanism includes a scarring reaction that causes a vascular compromise. The most effective treatment is surgery, which consists of removing the scarred area, thus reverting the vascular impairment.
R. Margalef   +6 more
wiley   +1 more source

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