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- Profile-based system for nutritional information managementPublication . Costa, Rui; Marcelino, Luis; Silva, CatarinaNowadays health concerns are effectively becoming ubiquitous. Most people have the need to effectively control their nutritional consumptions, mostly due to health issues. Personal computational devices may assist this control with a solution that allows an efficient management of each individual nutritional profile. In this work we propose a mobile service architecture that allows users to manage their nutritional information, using a profile-based system and build shopping lists based on the user’s profiles. This application may contribute to the improvement of the lifestyle of the population through the recommendation of food and drinks that fit their profile of restrictions and/or nutritional options (for instance, due to hypertension or obesity, among others). The person’s profile can be accessed and configured on a mobile device. A set of predefined templates provides the initial rules that may be customized to represent specific individual nutrition rules. The rules defined in the profile can later be used to filter the food presented to each user. The paper includes preliminary usability results from experiments using real data to validate the approach. These results suggest it could be used in real scenarios, although it may require more than simply filtering results.
- Gamification as a way to involve young adults in energy efficiency and sufficiency – a case studyPublication . Sousa, João Miguel C.; Neves, Luís Miguel P.; Lopes, Marta Alexandra; Reis, Inês F.; Coelho, Dulce Helena C.; Antunes, Carlos Henggeler; Dionissa, Rodrigo; Silva, Alexandre Gomes da; Sousa, José Luís; Costa, Dulce Helena P.; Henriques, Carla Oliveira; Silva, Catarina; Marcelino, Luis; Correia, Diogo; Gonçalves, Válter; Pereira, Rúben F.; Cabral Júnior, Jorge; Vieira, André Filipe; Moreira, LicinioSocial, economic and environmental concerns regarding en ergy use have fostered energy efficiency programs as effective tools to improve the rational use of energy in all activity sectors, i.e. for residential, industry and services consumers. Behav ioural change interventions play a key role to achieve energy efficiency. This paper discusses gamification as a tool to foster energy behaviour changes in young adults (higher education students) towards energy efficiency. The work was carried out as part of a research project (with the name Learn2Behave) aim ing to characterize residential energy consumption behaviours, seeking to contribute to improve energy efficiency and reduce energy bills. The project uses a mobile application (app), called “Minha Energia” (My energy, in Portuguese), as an inquiry tool to characterize consumers’ behaviours, giving suggestions and advices to participants as a reward. The development stage in volves students and researchers from three higher education institutions in Portugal, a research institute and three energy agencies. The application was made available not only to the target participants, but also to the general population, aiming to help the development of energy efficiency programs devoted to promoting more energy efficient behaviours while consider ing energy sufficiency. The data gathering has just started and is foreseen to last long enough to contribute to a more detailed knowledge of energy use in the residential sector. The use of mobile apps as an inquiry and dissemination tool of best prac tices, through gamification, allied to the involvement of circa 200 students, has the potential to change younger generations’ behaviours in the use of energy
- Patinhas Serviços de localização para animais desaparecidosPublication . Guerra, André; Tereso, Bruno; Brites, José; Silva, Catarina; Marcelino, LuisResumo — Todos os dias e por todo o lado existem animais que se perdem ou que são encontrados. Para grande parte destes casos existe uma dificuldade acrescida, não só em encontrar o dono do animal, mas também em reunir os esforços de inúmeros voluntários que, de uma forma ou outra, pretendem ajudar. De forma facilitar a procura de animais perdidos, foi proposto disponibilizar uma aplicação móvel em iOS, que permite a um utilizador colocar anúncios sobre animais perdidos e/ou encontrados, com base na localização onde foram vistos pela última vez. A aplicação serve igualmente de apoio à busca do animal. Sendo este um serviço que foca principalmente o senso comum e o espírito de entreajuda, torna-se importante notificar o utilizador no seu dia a dia, em situações em que ele pode ser verdadeiramente útil sem prejudicar, por exemplo, o seu itinerário. Por isso, foi criado um sistema de alertas que avisa o utilizador, ao passar numa determinada rua, quais os anúncios atuais na sua proximidade.
- Database synchronization model for mobile devicesPublication . Domingos, João; Simões, Nuno; Pereira, Paulo; Silva, Catarina; Marcelino, LuisWith the increasing number of mobile devices it is necessary to create adapted solutions for this type of devices that respect their limited processing capacities, memory and bandwidth. We propose a synchronization model based on message digests to synchronize relational databases between mobile devices and a server, in order to minimize the data transferred between the device and the server and to minimize the processing done by the mobile device. The approach consists in a synchronization model where the amount of data to be exchanged has been reduced to the minimum. In order to achieve the model above a registry is done in the device with the new, the modified or removed content, which purpose is to send only the essential data for synchronization from the device to the server. Regarding the synchronization from the server to the device, the modifications are calculated and sent to the device. This model is independent of proprietary solutions and can be adapted to any system or platform, often involving software development to the mobile application and the application server. The results of testing the model show that the proposed model can achieve better synchronization times than the competitor models, while always fulfilling the set objectives.