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On sampling collection procedure effectiveness for forest soil characterization

One of the most important measures to prevent wild forest fires is the use of prescribed and controlled burning actions as it reduce the fuel mass availability. The impact of these management activities on soil physical and chemical properties varies according to the type of both soil and vegetation. Decisions in forest management plans are often based on the results obtained from soil-monitoring campaigns. Tho...

A Propósito do Artigo “Adults with Down Syndrome: Characterization of a Portugu...

Palavras-chave: Adulto; Síndrome de Down, Portugal. ; Keywords: Adult; Down Syndrome; Portugal.

Characterization of cross sections from old chestnut beams weakened by decay

This work aims to experimentally assess the material properties of old chestnut (Castanea sativa Mill.) cross sections weakened by decay. Specimens were taken from critical zones of twenty floor beams, mostly corresponding to their ending parts, in contact with granite masonry walls. These specimens were compared with clear wood specimens taken from non-decayed parts . The experimental campaign comprised of vi...

Dimensional variation of three softwood due to hygroscopic behavior

With the aim of monitor the hygroscopic behavior of three softwood species in situations of changes in its moisture content, an experimental program based on dimensional measurements, hygrometer readings and weightings procedure, was carried out. Maritime Pine (Pinus pinaster), Spruce (Picea abies) and Scots Pine (Pinus sylvestris) specimens were evaluated and compared. For each wood species, half of specimens ...

Geographical, temporal and environmental determinants of bryophyte species rich...

Copyright: © 2014 Aranda et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. ; Species richness on oceanic islands has been related to a series of ecological factors including island size and isolation (i.e. the Equilibri...

Cromossomopatia com Cariotipo Normal em Linfócitos: Caso Clínico

A trissomia 22 em mosaico é uma cromossomopatia particularmente rara de que foram publicados apenas 10 casos, dois dos quais do sexo masculino. Descrevemos o terceiro caso desta situação numa criança de um ano de idade. Referimos as circunstâncias em que um estudo citogenético normal não permite excluir o diagnóstico de cromossomopatia.

Characterization and electrochemical behaviour of nanostructured calcium samari...

Ca1-xSmxMnO3(0 . x . 0.4) films were successfully fabricated on Indium Tin Oxide (ITO) coated quartzglass substrates by radio frequency magnetron sputtering technique (RF- magnetron sputtering) fromcompacted nanosized powder targets, and subsequent annealing at 800.C in air, for 6 h. X-ray diffrac-tion shows a pure typical perovskite phase for x . 0.1. Scanning electron microscopy and atomic forcemicroscopy r...

Lousal, Portugal : património geológico e mineiro de uma antiga mina na Faixa P...

Visita à antiga mina de sulfuretos, Lousal

Brochura técnica do Projecto Atlanterra - Interreg Espaço Atlântico

O Complexo Vulcano-Sedimentar de Toca da Moura-Cabrela (Zona de Ossa Morena) : ...