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Understanding information security culture: a survey in small and medium sized ...

Lopes, Isabel Maria; Oliveira, P.

Information security is a relevant fact for current organizations. There are factors inextricably linked to this issue, and one cannot talk about information security in an organization without addressing and understanding the information security culture of that institution. Maximizing the organizational culture within an organization will enable the safeguard of information security. For that, we need to unde...

Data: 2014   |   Origem: Biblioteca Digital do IPB

All-optical routing with MZI-SOAs Switches

T. Silveira; L. Oliveira; P. Teixeira; P. André; R. Nogueira; M. Lima; P. Monteiro; A. Teixeira

A router implementation based on OCDMA header recognition and MZI-SOA switching, allowing ps range packet switching capabilities is presented in this paper. Architecture results are presented. ; A router implementation based on OCDMA header recognition and MZI-SOA switching, allowing ps range packet switching capabilities is presented in this paper. Architecture results are presented.

Data: 2013   |   Origem: Electrónica e Telecomunicações

Sinais em Radiologia Torácica

Donato, Henrique; Pereira da Silva, F; Antunes, C; Belo-Oliveira, P; Caseiro-Alves, F


Otologic Wegener's granulomatosis

Mesquita-Oliveira, P; Silvestre, N; Silva, C; Romão, J


Age influence in BBN induced urothelial lesions in ICR male mice

Vasconcelos-Nóbrega, C.; Mega, C.; Arantes, R.; Talhada, D.; Teixeira-Guedes, C.; Faustino-Rocha, A.; Vala, Helena; Oliveira, P. A.


Entropy diversity in multi-objective particle swarm optimization

Pires, E. J. Solteiro; Machado, J. A. Tenreiro; Oliveira, P. B. Moura

Multi-objective particle swarm optimization (MOPSO) is a search algorithm based on social behavior. Most of the existing multi-objective particle swarm optimization schemes are based on Pareto optimality and aim to obtain a representative non-dominated Pareto front for a given problem. Several approaches have been proposed to study the convergence and performance of the algorithm, particularly by accessing the ...


Single-objective spreading algorithm

Pires, E. J. Solteiro; Mendes, Luís; Lopes, António M.; Oliveira, P. B. Moura; Machado, J. A. Tenreiro

This paper addresses the problem of finding several different solutions with the same optimum performance in single objective real-world engineering problems. In this paper a parallel robot design is proposed. Thereby, this paper presents a genetic algorithm to optimize uni-objective problems with an infinite number of optimal solutions. The algorithm uses the maximin concept and ε-dominance to promote diversit...


Optimal location of the workpiece in a PKM-based machining robotic cell

Pires, E. J. Solteiro; Lopes, António M.; Machado, J. A. Tenreiro; Oliveira, P. B. Moura

Most machining tasks require high accuracy and are carried out by dedicated machine-tools. On the other hand, traditional robots are flexible and easy to program, but they are rather inaccurate for certain tasks. Parallel kinematic robots could combine the accuracy and flexibility that are usually needed in machining operations. Achieving this goal requires proper design of the parallel robot. In this chapter, ...


A statistical classifier for assessing the level of stress from the analysis of...

Carneiro, Davide; Novais, Paulo; Gomes, Marco; Oliveira, P. M.; Neves, José

This paper describes an approach for assessing the level of stress of users of mobile devices with tactile screens by analysing their touch patterns. Two features are extracted from touches: duration and intensity. These features allow to analyse the intensity curve of each touch.We use decision trees (J48) and support vector machines (SMO) to train a stress detection classifier using additional data collected ...


The Impact of Polymorphic Variations in the 5p15, 6p12, 6p21 and 15q25 Loci on ...

de Mello, RA; Ferreira, M; Soares-Pires, F; Costa, S; Cunha, J; Oliveira, P; Hespanhol, V; Reis, RM

INTRODUCTION: Polymorphic variants in the 5p15, 6p12, 6p21, and 15q25 loci were demonstrated to potentially contribute to lung cancer carcinogenesis. Therefore, this study was performed to assess the role of those variants in non-small cell lung cancer (NSCLC) risk and prognosis in a Portuguese population. MATERIALS AND METHODS: Blood from patients with NSCLC was prospectively collected. To perform an associati...


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Fundação para a Ciência e a Tecnologia Universidade do Minho   Governo Português Ministério da Educação e Ciência Programa Operacional da Sociedade do Conhecimento União Europeia