2 research outputs found

    Morfologia do m-commerce : qualidade percebida pelos utilizadores em Portugal

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    De forma acelerada a sociedade da informação instala-se e aproxima-nos da 4.ª revolução industrial que, sendo baseada na inteligência artificial e na robótica, criará novos desafios à humanidade. No advento dessa aproximação os dispositivos móveis permitem-nos estarmos sempre conectados à Internet, ligados às equipas de trabalho, informados sobre o que estrutura a nossa ação e capazes de adquirir bens e/ou serviços de qualquer lugar e em qualquer hora ou dia. Com este enquadramento realizou-se o presente estudo no sentido de conhecer o potencial dos dispositivos móveis como canal comercial. Procura-se conhecer requisitos e limitações das alternativas técnicas entre apps e sites responsivos. Visa perceber o nível de adoção da tecnologia em diferentes planos da vida pelos portugueses e, em particular, junto dos jovens com formação e competências para uso avançado deste recurso. O presente trabalho descritivo e exploratório, inspirado na metodologia de estudo de caso, criou um inquérito por questionário baseado numa análise heurística a outras propostas, com base nos divulgados princípios do M-S-QUAL, de avaliação da perceção da qualidade pelo utilizador do canal mobile. Aplicado o instrumento a uma amostra de 37 sujeitos em ambiente controlado e sem pretensão de generalização, foi possível avaliar três diferentes apps de m-commerce presentes no mercado português, sendo possível verificar a larga experiência dos sujeitos na compra online e a razoável adoção do mobile para o mesmo fim. Globalmente a avaliação é muito idêntica para duas das três apps havendo diferenças de qualidade percebida entre dimensões de forma mais expressiva na “capacidade de resposta”. Os dados obtidos indiciam uma diferença de género na apreciação realizada para as diversas dimensões de avaliação.The information society rapidly settles among us which brings us closer to the fourth industrial revolution. This revolution is based on artificial intelligence and robotics, there for it will create new challenges to humanity. During this changing times, mobile devices allow us to always be connected to the Internet, to our work teams, informed about what structure our behavior and are able to purchase goods and services from anywhere at any time. Within this framework, this study was developed with the goal of understanding the mobile devices potential for m-commerce purposes. Seeks to identify requirements and limitations between two different techniques, apps and responsive sites. It also aims to realize the level of adoption of mobile technology by the Portuguese and, in particular, among young people with the training and skills for advanced use. This descriptive and exploratory study, inspired by a case study methodology, developed a survey based on a heuristic analysis to other proposals, grounded on M-S-Qual principles, for assessing the perception of quality by mobile channel user. The survey was applied to a sample of 37 subjects in a controlled environment and without any generalization claim. The sample evaluated three different m-commerce apps present in the Portuguese market. We were able to check the extensive experience of the subjects in the e-commerce and the reasonable adoption of mobile for m-commerce use. Overall evaluation identified similar results between two of the three apps in play. There were different results on perceived quality in all factors. The major gap was on responsiveness. The data may suggest differences between genders on the perceived quality for the various assessment dimensions

    Characterisation of microbial attack on archaeological bone

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    As part of an EU funded project to investigate the factors influencing bone preservation in the archaeological record, more than 250 bones from 41 archaeological sites in five countries spanning four climatic regions were studied for diagenetic alteration. Sites were selected to cover a range of environmental conditions and archaeological contexts. Microscopic and physical (mercury intrusion porosimetry) analyses of these bones revealed that the majority (68%) had suffered microbial attack. Furthermore, significant differences were found between animal and human bone in both the state of preservation and the type of microbial attack present. These differences in preservation might result from differences in early taphonomy of the bones. © 2003 Elsevier Science Ltd. All rights reserved
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