Regulación bancaria, crisis financiera y políticas consecuentes: el caso uruguayo

Incluye Bibliografía

SIRCo: uma arquitetura para Sensoriamento Inteligente de Rádios Cognitivos

The increased demand for using the Industrial, Scientific and Medical (ISM) unlicensed frequency spectrum has caused interference problems and lack of resource availability for wireless networks. Cognitive radio (CR) have emerged as an alternative to reduce interference and intelligently use the spectrum. Several protocols were proposed aiming to mitigate these problems, but most have not been implemented in real devices. This work presents an architecture for Intelligent Sensing for Cognitive Radios (ISCRa), and a spectrum decision model (SDM) based on Artificial Neural Networks (ANN), which uses as input a database with local spectrum behavior and a database with primary users information. For comparison, a spectrum decision model based on AHP, which employs advanced techniques in its spectrum decision method was implemented. Another spectrum decision model that considers only a physical parameter for channel classification was also implemented. Spectrum decision models evaluated, as well as ISCRa's architecture were developed in GNU-Radio framework and implemented on real nodes. Evaluation of SDMs considered metrics of: delivery rate, latency (Round Trip Time - RTT) and handoff. Experiments on real nodes showed that ISCRa architecture with ANN based SDM increased packet delivery rate and presented fewer frequency variation (handoff) while maintaining latency. Considering higher bandwidth as application's Quality of Service requirement, ANN-SDM obtained the best results when compared to other SDM for cognitive radio networks (CRN).

El ecosistema y la economía digital en América Latina

Prefacio de Mario Cimoli

A influência do pensamento neoconservador na política externa de George W. Bush

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Preferência alimentar do Metriona elatior Klug (Coleoptera: Chrysomelidae) em híbridos de berinjela (Solanum melogena L.) e Solanum viarum Dunal

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Ideologia e política em José Enrique Rodó: liberalismo e jacobinismo no Uruguai (1895-1917)

Pós-graduação em História - FCHS

Análises biomecânica e histológica da interface de implantes osseointegrados submetidos à carga mastigatória imediata em mandíbulas de cães

Pós-graduação em Odontologia - FOA

Fatores de virulência em isolados de Escherichia coli provenientes de amostras de água, leite e fezes de bovinos leiteiros da região de Ribeirão Preto-SP, Brasil

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Sylvia Plath: o corpo e o ato de morrer em cena

Nos poemas da coletânea Ariel, de Sylvia Plath, há diversos diálogos entre a inserção biográfica que os caracteriza e discursos da tradição religiosa, mitológica, histórica e literária. Nessa teia, a voz lírica tipicamente feminina dos poemas plathianos é constituída por meio de uma imagética corporal que a faz emergir diante desses discursos. Tal imagética muitas vezes faz par com a figurativização da morte em suas mais diversas facetas. A relação entre corpo e morte, no entanto, vai além da caracterização temática, pois ela representa o próprio processo da escritura. Desse modo, os poemas de Ariel podem ser vistos como constituintes de uma poética de dramatização e gozo de uma morte em cena.

Implications of the use of sorghum in broiler production

This study aimed at evaluating total or partial replacement of corn by sorghum in broiler diets and at estimating the effect of the pigment supplementation on broiler performance, carcass and cuts yield, and possible breast and leg pigmentation. We used 1680 one-d-old Ross® 308 broilers. Birds were sexed and distributed according to a completely randomized design (2 x 3 + 1). Treatments consisted of a control diet based on corn and diets with two levels corn replacement by sorghum (50 and 100%) and three pigments levels, with four replicates of 60 birds per treatment. There was no effect (p > 0.05) of the dietary replacement of corn by sorghum on performance, carcass and parts yield, and no changes in breast and leg meat pH (p >0.05). Meat redness (a*), yellowness (b*) and luminosity (L*) increased (p < 0.05) as pigment inclusion levels increased. It was concluded that the use of sorghum instead of corn did not affect broiler performance or carcass and cuts yield. When adequate pigments were used, meat color significantly improved.