A Flexible Implementation of a Matrix Laurent Series-Based 16-Point Fast Fourier and Hartley Transforms

This paper describes a flexible architecture for implementing a new fast computation of the discrete Fourier and Hartley transforms, which is based on a matrix Laurent series. The device calculates the transforms based on a single bit selection operator. The hardware structure and synthesis are presented, which handled a 16-point fast transform in 65 nsec, with a Xilinx SPARTAN 3E device.Comment: 4 pages, 4 figures. IEEE VI Southern Programmable Logic Conference 201

Of Protein Size and Genomes

An approach for approximately calculating the number of genes in a genome is presented, which takes into account the average protein length expected for the species. A number of virus, bacterial and eukaryotic genomes are scrutinized. Genome figures are presented, which support the average protein size of a species as a criterion for assessing life complexity. The human gene distribution in the 23 chromosomes is investigated emphasizing the genomic rate, the mean 'exon' length, and the mean 'exons per gene'. It is shown that storing all genes of a single human definitely requires less than 12 MB.Comment: 6 pages, 1 figure, 5 table

Projeto e desenvolvimento de um sistema sobre demandas em software agropecuário.

A demanda em software é um fator essencial para tomada de decisão no que se refere ao desenvolvimento de novos softwares agropecuários. Em 2009, a Embrapa Informática Agropecuária realizou uma pesquisa sobre a demanda desse tipo de software, em que foram levantadas questões referentes às necessidades e aos perfis de Cooperativas e Ematers (escritórios de extensão rural) em relação à informática. Visando obter análises de dados de forma automatizada, foi desenvolvido um sistema para o gerenciamento dos questionários respondidos na pesquisa