Este trabalho trata, principalmente, de uma revisão acerca da produção acadêmica científica sobre a análise quanto ao desempenho das fachadas, expostas às ações climáticas, situadas em 03 diferentes zonas bioclimáticas brasileiras. Tal estudo comparativo, consiste verificar os níveis exposição e agentes degradação correspondente cada dessas regiões, bem como dos materiais que compõem estas fach...

abstract  in order to study f3´5´h and f3´h function and their intraction in the grapevine flavonoids biosynthetic pathway, designing and constraction of suitable constructs encoding ihprna was performed and transgenic lines containing silencing construct of f3´h and simultaneous silencing construct of f3´5´h and f3´h were created. for this purpose, fragments were selected from both genes and i...

This paper presents the classification over fields of real and complex numbers, minimal Z2×Z2-graded Lie algebras superalgebras spanned by four generators with no empty graded sector. The inequivalent (super)algebras are obtained solving constraints imposed respective Jacobi identities. A motivation for this mathematical result is to systematically investigate properties dynamical systems invar...

We show that the classical algebra of quaternions is a commutative Z2×Z2×Z2-graded algebra. A similar interpretation of the algebra of octonions is impossible. This note is our “private investigation” of what really happened on the 16th of October, 1843 on the Brougham Bridge when Sir William Rowan Hamilton engraved on a stone his fundamental relations: i = j = k = i · j · k = −1. Since then, t...

Let X be a smooth, closed, connected spin 4-manifold with b1(X) = 0 and non-positive signature σ(X). In this paper we use Seiberg-Witten theory to prove that if X admits an odd type symmetric group S3 action preserving the spin structure, then b+2 (X) ≥ |σ(X)|/8 + 3 under some non-degeneracy conditions. We also obtain some information about IndS̃3 D, where S̃3 is the extension of S3 by Z2.

Within the setting of infinite-dimensional self-dual CAR C* algebras describing fermions in [Formula: see text] lattice, we depart from well-known Araki–Evans index for quasi-free fermion states and rewrite it terms rather than basis projections. Furthermore, reformulate results that relate equivalences Fock representations to parity into Gel’fand–Naimark–Segal associated parity.