Generalized Heisenberg algebras and k-generalized Fibonacci numbers

It is shown how some of the recent results of de Souza et al. [1] can be generalized to describe Hamiltonians whose eigenvalues are given as k-generalized Fibonacci numbers. Here k is an arbitrary integer and the cases considered by de Souza et al. corespond to k=2.Comment: 8 page

Gibran de Souza

Heitor Villa-LobosJoaquin RodrigoAaron Jay KernisSamuel AdlerEgberto GismontiDilermando Reis, arr. Edson LopesDilermando Reis, arr. Jair TeodoroArmando Neves, arr. Edson Lope

Germano José de Souza

O presente artigo discorre sobre uma visão holística das Universidades sobre o ensino superior no Brasil, através do Programa “Universidade para Todos - ProUni. Tem como principal tema estabelecer cotas de bolsas de estudos, para a inclusão de alunos carentes, provenientes de escolas públicas e privadas, em troca de isenção fiscal. As referidas cotas, além de atender os alunos carentes, também favorecem a classe da raça negra, indígena e portadores de necessidades especiais. O objetivo principal do artigo é apontar uma relação histórica comparativa, demonstrando inicialmente, uma total exclusão dos mesmos na Universidade

What cases on lean hospital transformation tell us?

The scientific knowledge about the lean transformation of hospital processes is at best in its “emerging” phase; neither related international, nor Hungarian literature offers a systematic, comprehensive description of the phenomenon (Brandao de Souza, 2009). In this paper empirical evidences concerning the lean transformation of hospital processes are researched and systemized. Thus it provides a new insight of existing knowledge in order to provide solid base for further researches and practical actions

Interview with Mary Souza

A seventy-two-year-old retired substitute schoolteacher discusses her childhood experiences in Kalihi Valley.substitute school teacher; Portuguese; femaleInterview conducted in English.Stat

Perilipin regulates the thermogenic actions of norepinephrine in brown adipose tissue

In response to cold, norepinephrine (NE)-induced triacylglycerol hydrolysis (lipolysis) in adipocytes of brown adipose tissue (BAT) provides fatty acid substrates to mitochondria for heat generation (adaptive thermogenesis). NE-induced lipolysis is mediated by protein kinase A (PKA)-dependent phosphorylation of perilipin, a lipid droplet-associated protein that is the major regulator of lipolysis. We investigated the role of perilipin PKA phosphorylation in BAT NE-stimulated thermogenesis using a novel mouse model in which a mutant form of perilipin, lacking all six PKA phosphorylation sites, is expressed in adipocytes of perilipin knockout (Peri KO) mice. Here, we show that despite a normal mitochondrial respiratory capacity, NE-induced lipolysis is abrogated in the interscapular brown adipose tissue (IBAT) of these mice. This lipolytic constraint is accompanied by a dramatic blunting (∼70%) of the in vivo thermal response to NE. Thus, in the presence of perilipin, PKA-mediated perilipin phosphorylation is essential for NE-dependent lipolysis and full adaptive thermogenesis in BAT. In IBAT of Peri KO mice, increased basal lipolysis attributable to the absence of perilipin is sufficient to support a rapid NE-stimulated temperature increase (∼3.0°C) comparable to that in wild-type mice. This observation suggests that one or more NE-dependent mechanism downstream of perilipin phosphorylation is required to initiate and/or sustain the IBAT thermal response