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Publicações

2016

A Multiperspective Web Accessibility Adoption Model

Autores
Peixoto, C; Martins, J; Goncalves, R; Branco, F;

Publicação
2016 11TH IBERIAN CONFERENCE ON INFORMATION SYSTEMS AND TECHNOLOGIES (CISTI)

Abstract
The Internet offers a set of information that is constantly growing in both size and complexity, becoming an indispensable tool to our daily-lifes. A particular group of Web users are those with some sort of disabilities or incapacities. These users need this technology to be adaptable to their incapacities and limitations, thus the need fo the entities behind their development assume the inherent responsabilities. This document serves as a summary of a research project aimed at studying the relation between the users needs and the perspectives on the topic presented by the companies behind Web content development, thus characterizing this reality and achieve future adjustments.

2016

Six-leg DC-link rectifier/inverter for two-phase machines

Autores
de Freitas, NB; Jacobina, CB; Oliveira, AC;

Publicação
2016 IEEE Energy Conversion Congress and Exposition (ECCE)

Abstract

2016

Preface to the Special Issue on Cutting and Packing

Autores
Gomes, AM; Goncalves, JF; Alvarez Valdes, R; de Carvalho, JV;

Publicação
International Transactions in Operational Research

Abstract

2016

Identification and Characterization of Inter-Organizational Information Flows in the Portuguese National Health Service

Autores
Pinto, E; Brito, AC; Cruz Correia, RJ;

Publicação
APPLIED CLINICAL INFORMATICS

Abstract
Objectives: To understand and build a collective vision of all existing institutions in the Portuguese National Health Service as well as to perceive how and how far the interaction between those multiple institutions is supported by Information Systems (IS). Methods: Upon identification of the institutions involved in the healthcare process, a set of interviews with experienced people from those institutions was conducted, which produced about five hours of tape. The research was focused exclusively on processes involving two different organizations and any internal processes were altogether excluded from it. Results: The study allowed the identification of about 50 recurrent interaction processes, which were classified into four different varieties in accordance with the nature of the information flow: administrative, clinical, identificational and statistical. In addition, these processes were divided in accordance with the way how that integration is achieved, from completely automated to email or telephone-based. Conclusions: Funds/Money related processes are technologically more rigid and standardized, whereas auditing and inspection ones are less supported by automatic systems. There emerged an interesting level of sharing and integration in clinical processes, although the integration is mostly made at the interface level. The authors identified 5 particularly relevant and dominant actors (2 classes of individuals and 3 institutions) with which there is a need for coordination and cooperation. The authors consider that, in future works, an effort should be made to provide the various institutions with guidelines/interfaces and prompt such institutions to elaborate upon these.

2016

Técnicas para aumentar o envolvimento dos alunos na aprendizagem da programação

Autores
Tavares, Paula; Gomes, Elsa; Henriques, Pedro Rangel; Pereira, Maria João;

Publicação
VII Congresso Mundial de Estilos de Aprendizagem, CMEA'2016

Abstract
Neste artigo analisam-se em particular duas técnicas concebidas para apoiar o ensino da programação: a Animação de Programas e a Avaliação Automática de Programas. Com base na combinação destas técnicas e respetivas ferramentas, atualmente disponíveis, iremos enunciar duas possíveis abordagens. Serão apresentadas as conclusões retiradas de uma primeira experiência conduzida em sala de aula. Por fim, esboçaremos uma ferramenta que através da Web, implementará uma das abordagens propostas.

2016

Evaluation of portable XRF instrumentation for assessing potential environmental exposure to toxic elements

Autores
McIntosh, KG; Guimarães, D; Cusack, MJ; Vershinin, A; Chen, ZW; Yang, K; Parsons, PJ;

Publicação
International Journal of Environmental Analytical Chemistry

Abstract
Portable instruments based on X-Ray Fluorescence Spectrometry (XRF) have the potential to assist in field-based studies, provided that the data produced are reliable. In this study, we evaluate the performance of two different types of XRF instrument (XOS prototype and Thermo Niton XL3t). These two XRF analysers were evaluated in a laboratory setting, and data were reported for 17 elements (As, Ba, Cd, Co, Cr, Cu, Fe, Hg, Mn, Ni, Pb, Se, Sn, Sr, Ti, V, and Zn). Samples analysed (n = 38) included ethnic herbal medicine products (HMPs), ethnic spices (ES), and cosmetic products (CPs). Comparison analyses were carried out using Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES). In general, results reported for Cd, Cu, and Pb by the XOS prototype analyser, using the non-metal mode, were negatively biased (5–95%) as compared to ICP-OES. In contrast, results reported for Pb, As, Cd, Cu and Zn by the Niton, using the soil mode, were positively biased, in some instances (Cd) by up to four orders of magnitude. While the sensitivity of both instruments was insufficient for reliably ‘quantifying’ toxic elements below 15 mg/kg, XRF was still capable of positively ‘detecting’ many elements at the low single-digit mg/kg levels. For semi-quantification estimates of contaminants at higher levels, and with limited sample preparation, both XRF instruments were deemed fit for the purpose. This study demonstrates that modern XRF instrumentation is valuable for characterising the elemental content of food, cosmetic, and medicinal products. The technology is particularly useful for rapidly screening large numbers of products (100’s per day) in the field, and quickly identifying those that may contain potentially hazardous levels of toxic elements. Toxic elements can be confirmed by examining the raw spectrum, and the limitations of factory-based calibration are generally manageable for field-based studies. © 2015 Wadsworth Center, New York State Department of Health.

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