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Keeping track of UWP application changes for digital forensic purposes
Publication . Andrade, Luis Miguel; Domingues, Patricio; Frade, Miguel
Digital forensics aims to collect and interpret artifacts that can help in the understanding of the action performed by a given individual or organization. The forensic artifacts are highly dependent on the inner working of the operating system (OS) and applications. This is the case for applications of the Universal Windows Platform (UWP), with digital forensic practitioners often depending on the data kept in the private database(s) of the application. However, some of these applications evolve rapidly, with new versions bringing changes that sometimes involve their inner databases and thus might impact digital forensic artifacts. In this paper, we present UWPscanner, an open source system that we have developed. The UWPscanner system allows to track the changes of internal databases used by UWP applications, aiming to ease the task of not only digital practitioners, but also of digital forensic tool developers. The paper is complemented with the case-study of tracking Microsoft Skype (SkypeApp) and Your Phone evolution with UWPscanner.
New Emigration and Portuguese Society: Transnationalism and Return
Publication . Peixoto, João; Candeias, Pedro; Ferreira, Bárbara; Oliveira, Isabel Tiago de; Azevedo, Joana; Carlos Marques, José; Góis, Pedro; Malheiros, Jorge; Madeira, Paulo Miguel; Schiltz, Aline; Ferro, Alexandra; Santana, Eugénio
This chapter addresses the theme of transnationalism and return in recent Portuguese emigration, namely the flows that occurred after the turn of the century. It starts with a brief theoretical overview on those topics, which constitute two relatively neglected characteristics of Portuguese emigration. Next, based on a survey carried out in 2014–2015 to more than 6000 recent emigrants, it reveals some of the links that they maintain with their home country, as well as their plans for the future, which include settlement in the destination country, return and re-emigration. Lastly, it examines data on returning emigrants – especially those that returned between 2001 and 2011 – extracted from the 2011 Census. The evidence reveals a significant number of returns, including individuals at both working and retirement ages and at all skill levels, thus exposing the unexpected complexity of movements. The results are based on the research project “Back to the future: new emigration and links with Portuguese society” (REMIGR), which aimed to ascertain the extent and characteristics of the new emigration wave. The project included an overview of emigration and return to and from all regions of the world, as well as case studies in UK, France, Luxembourg, Angola, Mozambique and Brazil.
Automatic visual inspection system for solder paste deposition in PCBs
Publication . Paulo, Guilherme B. F.; Perdigoto, Luís M. R.; Faria, Sergio M. M.
The growth of the electronics industry led to a need for efficient methods of testing and validation of printed circuit boards (PCB). It is necessary to identify defects that might appear in a component in early production stages. This task may be performed by automatic inspection systems, showing advantages in speed, accuracy and repeatability, over human inspection. This paper describes a visual inspection system that is able to detect solder paste deposition defects on a PCB. The PCB image is analysed to segment the areas with solder paste and then, by comparing with reference data from the PCB design files, defects are identified, either because of missing or excess solder. The system is based on low cost components, namely a Raspberry Pi Compute Module and two Raspberry Pi v2 cameras. Experimental tests performed with the prototype, regarding the PCB defect detection and execution time, allowed to conclude the system can aid human visual inspection in a production line.
Supporting Better Physical Activity in a Smart City: a Framework for Suggesting and Supervising Walking Paths
Publication . Rodrigues, Mário; Santos, Rita; Queirós, Alexandra; Silva, Anabela; Amaral, João; Simões, Patrícia; Gonçalves, Jorge; Martins, Ciro; Pereira, António; Rocha, Nelson Pacheco da
The increase of elderly population creates the need to promote healthy aging, with autonomy and independence, for preserving the functional capacity and quality of life as much as possible. To achieve this goal the recommendations include walking a certain amount of steps daily, given that the exact amount of steps changes with age, lesions, and chronic health conditions that can affect health and well-being. Understanding how much exercise is adequate for an individual requires spe- cialized knowledge and training. It is important to avoid risks that include: (1) be too aggressive in exercising and increase injuries, create new ones, and later refrain in exercising more; or (2) be too conservative and in the long run have an activity level under each one’s potential and below what is recommended. In this article is proposed and discussed a framework that aims to support peo- ple having an adequate level of activity for its particular condition and to do it without disrupting daily routines. The framework is supported by a software system built for monitoring well-being and physical activity in the context of Smart Cities. The system is composed by: (1) smartphone applications that interact with the end-user for showing possible exercises and walk routes, and that collects some relevant data; (2) a back-office application that collects and presents data obtained from the smartphone applications. The back-office application is designed for health professionals to follow users’ progression over time, to recommend new exercises or to correct less optimal situations. The first tests with a system implementing this framework show that the solution is robust and able to be used in a large scale.
A cobertura jornalística do 25 de abril de 1974 no Corriere della Sera, La Stampa e Il Messaggero
Publication . Gomes, Marco
A queda do Estado Novo e o período de transição para a democracia subsequente transformaram Portugal numa espécie de laboratório político para os círculos dirigentes, jornalísticos e intelectuais europeus. Na imprensa internacional, o país alcançou uma exposição mediática sem precedentes. Este artigo analisa a cobertura jornalística do 25 de Abril de 1974 pelos jornais Corriere della Sera, La Stampa e Il Messaggero. O âmbito cronológico da dimensão quantitativa abarca as dez edições dos órgãos em apreço no imediato pós-25 de Abril, entre 26 de abril e 6 de maio de 1974, enquanto a atuação qualitativa alarga o âmbito temporal até 9 de junho de 1974. Privilegia-se uma abordagem de integração metodológica centrada na expressão numérica do tratamento jornalístico e, sobretudo, na sua dimensão qualitativa com o objetivo de compreender os cenários políticos desenhados pela imprensa italiana, o grau de envolvimento dos jornalistas e o destaque conferido ao acontecimento. Conclui-se que os jornais analisados reportaram a queda do Estado Novo e os desenvolvimentos políticos subsequentes como um acontecimento excecional.