Aplicação ao ensino médico do método de aprendizagem por problemas (APP), 2ª Parte: A experiência da disciplina de Fisiopatologia entre 1992 e 1995

Educação Médica. 1997;8 (3): 156-173

O Método de aprendizagem por problemas (APP) aplicado ao ensino médico, 1ª Parte: Reflexões sobre o método como estratégia de inovação

Educação Médica, 1997; 8 (1): p.17-35.

A importância das tecnologias de informção geográfica para o e-Citizen

O aparecimento e a banalização do uso da Internet, veio encurtar distâncias, democratizar o acesso à informação e expandir as relações humanas numa sociedade cada vez mais individualista. Através da Internet, as pessoas agrupam-se baseadas em interesses comuns e não por questões de proximidade geográfica, o que liberta a comunicação do constrangimento do espaço e do tempo. Na Sociedade da Informação, o ciberespaço desempenha hoje o papel que as cidades e as regiões desempenharam no desenvolvimento da sociedade industrial. O conhecimento é a base do crescimento económico e este organiza-se em torno de redes de fluxos informacionais. Parece assim haver lugar para uma (nova) geografia da sociedade da informação, um campo de investigação vasto e cativante, resultado da cada vez mais rápida alteração dos padrões de espaço e de tempo da sociedade moderna e da necessidade de cartografar os fenómenos informacionais. O uso das tecnologias de informação e em particular a Internet, bem como a aplicação de tecnologias de informação geográfica, para disponibilizar serviços públicos de uma maneira muito mais eficaz, quer em termos de operacionalidade, quer em termos de custo e eficiência, deverá ser uma prática corrente da administração pública. Uma correcta estratégia de e-Government traz benefícios a todos os agentes envolvidos: trabalhadores, agentes económicos, mas em especial aos cidadãos. Garantir a estes últimos, a disponibilidade de um acesso electrónico generalizado e um bom nível transaccional é a base do conceito e o objectivo do e-Citizen.

UJI's Smart Campus: Place Finder App

Dissertation submitted in partial fulfillment of the requirements for the Degree of Master of Science in Geospatial Technologies.

How to design and develop There App: A mobile app focused on live video streaming, promoting new social interactions

This work project aims to demonstrate how to design and develop an innovative concept of video streaming app. The project combines technology push and market pull theories into developing a product that is more suitable for the customer needs, with the particularity that there is no other way of seeing any place in the world, live and ondemand. An analysis on the bigger influencers in terms of design-thinking and new product development, as Tim Brown or Paul Trott, lead to a better understanding on how There App should evolve, keeping in mind the customer desires and technical features.

Opportunities and threats for the launch of a smartphone app

Field lab: Entrepreneurial and innovative ventures

Impact of mobile app user acquisition on managerial decisions: Evidence from empirical experiment

In this research we conducted a mixed research, using qualitative and quantitative analysis to study the relationship and impact between mobile advertisement and mobile app user acquisition and the conclusions companies can derive from it. Data was gathered from management of mobile advertisement campaigns of a portfolio of three different mobile apps. We found that a number of implications can be extracted from this intersection, namely to product development, internationalisation and management of marketing budget. We propose further research on alternative app users sources, impact of revenue on apps and exploitation of product segments: wearable technology and Internet of Things.

Concurrent tabling

In the past few years Tabling has emerged as a powerful logic programming model. The integration of concurrent features into the implementation of Tabling systems is demanded by need to use recently developed tabling applications within distributed systems, where a process has to respond concurrently to several requests. The support for sharing of tables among the concurrent threads of a Tabling process is a desirable feature, to allow one of Tabling’s virtues, the re-use of computations by other threads and to allow efficient usage of available memory. However, the incremental completion of tables which are evaluated concurrently is not a trivial problem. In this dissertation we describe the integration of concurrency mechanisms, by the way of multi-threading, in a state of the art Tabling and Prolog system, XSB. We begin by reviewing the main concepts for a formal description of tabled computations, called SLG resolution and for the implementation of Tabling under the SLG-WAM, the abstract machine supported by XSB. We describe the different scheduling strategies provided by XSB and introduce some new properties of local scheduling, a scheduling strategy for SLG resolution. We proceed to describe our implementation work by describing the process of integrating multi-threading in a Prolog system supporting Tabling, without addressing the problem of shared tables. We describe the trade-offs and implementation decisions involved. We then describe an optimistic algorithm for the concurrent sharing of completed tables, Shared Completed Tables, which allows the sharing of tables without incurring in deadlocks, under local scheduling. This method relies on the execution properties of local scheduling and includes full support for negation. We provide a theoretical framework and discuss the implementation’s correctness and complexity. After that, we describe amethod for the sharing of tables among threads that allows parallelism in the computation of inter-dependent subgoals, which we name Concurrent Completion. We informally argue for the correctness of Concurrent Completion. We give detailed performance measurements of the multi-threaded XSB systems over a variety of machines and operating systems, for both the Shared Completed Tables and the Concurrent Completion implementations. We focus our measurements inthe overhead over the sequential engine and the scalability of the system. We finish with a comparison of XSB with other multi-threaded Prolog systems and we compare our approach to concurrent tabling with parallel and distributed methods for the evaluation of tabling. Finally, we identify future research directions.