Braids
Mostrando 1-4 de 4 artigos, teses e dissertações.
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1. Etnomatemática de una Artesanía Argentina: identificando etnomodelos de trenzado
AbstractThis investigation focuses on the study of the mathematics of an Argentine craftsmanship of making braids. The objective is to develop a situated mathematical interpretation for the modeling of the braiding practice from an emic perspective. We set out from the reorganization of the space through the universal mathematical activities to locate and de
Bolema. Publicado em: 2015-08
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2. Grupo de tranças e espaços de configurações
In this work, we study the Artin braid group, B(n), and the confguration spaces (ordered and unordered) of a path connected manifold of dimension 2. The fundamental group of confguration space (unordered) of IR2 is identifed with the Artin braid group. This identifcation is used to conclude that the confguration space of IR2 is an Eilenberg-MacLane space of
Publicado em: 2007
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3. Significance of braided trichomes in the cyanobacterium Mastigocladus laminosus.
Loops and braids in filaments of the cyanobacterium Mastigocladus laminosus were observed. Braided filaments were generally in the form of a right-handed helix (87%) but were occasionally observed as left-handed helices (13%). It was demonstrated by time-lapse photomicrography that braids continued to grow as braids and that loops coiled into braids as growt
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4. Single-molecule study of DNA unlinking by eukaryotic and prokaryotic type-II topoisomerases
Type-II topoisomerases are responsible for untangling DNA during replication by removing supercoiled and interlinked DNA structures. Using a single-molecule micromanipulation setup, we follow the real-time decatenation of two mechanically braided DNA molecules by Drosophila melanogaster topoisomerase (Topo) II and Escherichia coli Topo IV. Although Topo
National Academy of Sciences.