Chinese multinational corporations in Brazil: strategies and implications in energy and telecom sectors

This study aims to understand how Chinese enterprises acted in Brazilian energy and telecommunication sectors in the past ten years and whether they would be leading to an increase in the asymmetries between Brazil and China. It argues that the asymmetries presented in the relations are due in large part to successful Chinese enterprises' strategies.

Projecto Odisseia: implementação de processo de gestão de riscos de negócio no grupo Portugal Telecom

O trabalho que agora se apresenta decorreu no período compreendido entre 2000 e 2002, no Grupo Portugal Telecom, na sequência das responsabilidades que foram atribuídas ao candidato na PT, S.G.P.S. de Director da Auditoria Interna Corporativa.

Balanced Scorecard como ferramenta de desempenho aplicado à Portugal Telecom

Mestrado em Controlo e Gestão dos Negócios

O papel da inovação como factor de sucesso no mercado competitivo actual : um estudo aplicado à Portugal Telecom

Mestrado em Gestão e Empreendedorismo

SiC pinpin photonic for linking the visible spectrum to the telecom gap

Expanding far beyond traditional applications at telecommunications wavelengths, the SiC photonic devices has recently proven its merits for working with visible range optical signals. Reconfigurable wavelength selectors are essential sub-systems for implementing reconfigurable WDM networks and optical signal processing. Visible range to telecom band spectral translation in SiC/Si can be accomplished using wavelength selector under appropriated optical bias, acting as reconfigurable active filters. In this paper we present a monolithically integrated wavelength selector based on a multilayer SiC/Si integrated optical filters that requires optical switches to select wavelengths. The selector filter is realized by using double pin/pin a-SiC:H photodetector with front and back biased optical gating elements. Red, green, blue and violet communication channels are transmitted together, each one with a specific bit sequence. The combined optical signal is analyzed by reading out the generated photocurrent, under different background wavelengths applied either from the front or the back side. The backgrounds acts as channel selectors that selects one or more channels by splitting portions of the input multi-channel optical signals across the front and back photodiodes. The transfer characteristics effects due to changes in steady state light, irradiation side and frequency are presented. The relationship between the optical inputs and the digital output levels is established. (C) 2014 Elsevier B.V. All rights reserved.

Liderança estratégica como diferencial competitivo nas empresas : análise da liderança de Zeinal Bava na Portugal Telecom

Mestrado em Gestão e Empreendedorismo

Portugal Telecom: Telecom: Equity Investment Report

A Work Project, presented as part of the requirements for the Award of a Masters Degree in Finance from the NOVA – School of Business and Economics

Portugal Telecom: Telecom: Equity Investment Report

A Work Project, presented as part of the requirements for the Award of a Masters Degree in Finance from the NOVA – School of Business and Economics

Portugal Telecom: Telecom: Equity Investment Report

A Work Project, presented as part of the requirements for the Award of a Masters Degree in Finance from the NOVA – School of Business and Economics

Portugal Telecom: Telecommunications: Equity Investment Report

A Work Project, presented as part of the requirements for the Award of a Masters Degree in Finance from the NOVA – School of Business and Economics

Zon Multimedia: Telecom and media services: Equity Investment Report

A Work Project, presented as part of the requirements for the Award of a Masters Degree in Finance from the NOVA – School of Business and Economics

Portugal Telecom

A Work Project, presented as part of the requirements for the Award of a Masters Degree in Finance from the NOVA – School of Business and Economics

Portugal Telecom

A Work Project, presented as part of the requirements for the Award of a Masters Degree in Finance from the NOVA – School of Business and Economics

Timor Telecom case study: ten years of experience

A Work Project, presented as part of the requirements for the Award of a Masters Degree in Finance from the NOVA – School of Business and Economics

Oi merger with Portugal Telecom: A strategic partnership

A Work Project, presented as part of the requirements for the Award of a Masters Degree in Finance from the NOVA – School of Business and Economics