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Article
The use of amalgam electrodes for monitoring of organic compounds: overview of papers published from 2011 to 2023
This article provides an overview of the use of various types of amalgam electrodes for monitoring of organic compounds described in papers published since 2011. Amalgam electrodes are a popular alternative to...
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Article
3D Constrained Gravity Inversion and TEM, Seismic Reflection and Drill-Hole Analysis for New Target Generation in the Neves–Corvo VMS Mine Region, Iberian Pyrite Belt
Located in the Iberian pyrite belt, the Neves–Corvo mine is a world-class massive sulfide deposit and the largest operating mine in Portugal with underground mining down to 1000 m depth focused on massive and ...
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Article
A drill-hole, geological and geophysical data-based 3D model for target generation in Neves-Corvo mine region, Portugal
The Neves-Corvo world class Iberian Pyrite Belt volcanogenic massive sulphide (VMS) deposit located in southern Portugal, constitutes an important Cu–Zn–Pb active mine. Seven deposits are currently known, among w...
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Article
Geophysical investigation of the down-dip extension of the Lombador massive sulphide deposit, Neves-Corvo, Portugal
The 150 Mt Lombador massive sulphide deposit is one of the seven known deposits of the Neves-Corvo mine. The deposit dips approximately 30º–35º to the NE and is open down dip, with current exploitation reachin...
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Chapter and Conference Paper
Evolution of HTTPS Usage by Portuguese Municipalities
This paper presents a study on the evolution of the use of HTTPS by the official websites of all (308) Portuguese municipalities. One year ago, we found a bad situation regarding HTTPS usage: only a small per...
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Article
Open AccessImproving access to community-based pulmonary rehabilitation: 3R protocol for real-world settings with cost-benefit analysis
Pulmonary rehabilitation (PR) has demonstrated patients’ physiological and psychosocial improvements, symptoms reduction and health-economic benefits whilst enhances the ability of the whole family to adjust t...
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Chapter and Conference Paper
Usage of HTTPS by Municipal Websites in Portugal
This paper presents a study on the adoption of HTTPS in the official websites of all (308) Portuguese municipalities. Automated and, whenever needed, manual analysis were used to investigate its entry pages. ...
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Chapter and Conference Paper
An Integrated Service Solution for Digital Discount Coupons Processing
This paper describes a digital coupons management system that aims to dematerialize the couponing process since its origin (the Issuer) to its final state (the Consumer), passing by the Retailer of the product...
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Chapter and Conference Paper
Agent-Based Interoperability for e-Government
The provision of valuable e-government services depends upon the capacity to integrate the disperse provision of services by the public administration and thus upon the availability of interoperability platfor...
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Chapter and Conference Paper
Partitioning Orthogonal Polygons by Extension of All Edges Incident to Reflex Vertices: Lower and Upper Bounds on the Number of Pieces
Given an orthogonal polygon P, let |Π(P)| be the number of rectangles that result when we partition P by extending the edges incident to reflex vertices towards INT(P). In [4] we have shown that |Π(P)| ≤ 1+r+r ...
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Chapter and Conference Paper
Approximation Algorithms to Minimum Vertex Cover Problems on Polygons and Terrains
We propose an anytime algorithm to compute successively better approximations of the optimum of Minimum Vertex Guard. Though the presentation is focused on polygons, the work may be directly extended to terrains ...
