RESUMO: Portugal foi um dos países pioneiros na elaboração de cartografia geológica do seu território, iniciando-se a sua produção em meados do séc. XIX, sendo atualmente disponibilizada em formato digital e papel pelo Laboratório Nacional de Energia e Geologia (LNEG). A conceção do modelo territorial de uma região suporta-se na caraterização e diagnóstico dos sistemas biofísico, territorial urbano e conetivida...
This study extends the literature on big data applied to tourism by validating the significance of point-of-sale (POS) electronic transactions, which have received little attention within tourism literature, as a reliable and effective alternative to surveys on guests stays at tourist accommodation establishments. Compared with official statistics on occupancy of tourist accommodation establishments, data on PO...
This paper investigates the pattern of COVID-19 contagion in Portuguese municipalities from March 23rd to April 5th (the exponential phase). We have recurred to spatial autocorrelation models to discuss how the conglomeration of highly infectious spaces has also contributed to infecting neighbouring municipalities. We have used several indicators for the contagion of COVID-19 from the number of infectious indiv...
During the summer of 2020 intra-national mobility restrictions were lifted in most European countries, and domestic tourism partially cushioned the negative impacts of plunging international arrivals. Considering the perceived risk of crowding, low tourist density destinations were expected to benefit from shifts in tourists’ preferences. This paper shows that, in the case of Portugal, preference for tourism in...
This paper investigates the pattern of COVID-19 contagion in Portuguese municipalities from March 23rd to April 5th (the exponential phase). We have recurred to spatial autocorrelation models to discuss how the conglomeration of highly infectious spaces has also contributed to infecting neighbouring municipalities. We have used several indicators for the contagion of COVID-19 from the number of infectious indiv...
Este relatório enquadra-se no projeto DOUROTUR (cf. https://DOUROTUR.utad.pt/). O projeto DOUROTUR pretende colmatar o fosso existente entre as potencialidades turísticas do Douro (NUT-III) e o seu desenvolvimento, ampliando a importância do turismo na economia local. Para tal, a oferta de serviços diferenciadores e promotores de vantagens competitivas (baseada em sinergias entre recursos, como o vinho, o patri...
Solubilizing agents are widely used to extract poorly soluble compounds from biological matrices. Aqueous solutions of surfactants and hydrotropes are commonly used as solubilizers, however, the underlying mechanism that determines their action is still roughly understood. Among these, ionic liquids (IL) are often used not only for solubilization of a target compound but in liquid–liquid extraction processes. M...
A doença da tinta (Phytophthora cinnamomi) e o cancro (Cryphonectria parasitica) são as doenças que causam mais danos ao castanheiro europeu (Castanea sativa). Decorridas duas décadas, após a introdução do cancro do castanheiro em Portugal, a hipovirulência começou a observar-se nalguns locais. A população dessas estirpes caracteriza-se pela baixa diversidade em termos de grupos de compatibilidade. Em Portugal ...