Percorrer por autor "Santos, Luis"
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- Bridging Culture, Tourism, and Literature: The Short Videos of Saramago's Small Memories of AzinhagaPublication . Silva, Julio; Santos, Luis; Silva, Manuela; Cordeiro, João; Carmo, Ana do; Romana, Maria Barras; Caetano Domingos, Susana IsabelA arte, conforme definida por Leo Tolstoi (2013), é a atividade pela qual uma pessoa, tendo experimentado uma emoção, transmite-a intencionalmente a outros. A forte ligação entre o enquadramento geográfico e experiências do autor, despoleta a imaginação do leitor e a vontade de viver na primeira pessoa as experiências. Algumas obras literárias e autores que estimularam os leitores a viajar, por exemplo Stratford-upon-Avon, de William Shakespeare, contribuem para o desenvolvimento local. Outros artistas e formas de arte também exercem o mesmo efeito, César Manrique em Lanzarote com pinturas, esculturas e arquitetura, ou o livro de John Ronald Reuel Tolkien através do filme Senhor dos Anéis promovendo a Nova Zelândia. Turismo cinematográfico ou turismo induzido por filmes é definido como qualquer viagem motivada por cenário com o objetivo de visitação. Nem todos os turistas cinematográficos são motivados da mesma forma, alguns são motivados por cenário, circunscrito e específico, enquanto generalistas visitam regiões ou países (Gürkaya, 2010). O estudo atual visa desenvolver 8 curtas-metragens da obra literária As Pequenas Memórias (2006) do Prémio Nobel José Saramago, onde o autor descreve o seu local de nascimento e experiências da juventude. Este trabalho mais do que a expressão de arte audiovisual visa promover o turismo cultural através uma de ampla estratégia integrada de turismo regional. O potencial deste turismo para o desenvolvimento ainda não atingiu a maturidade. Todos os tipos de turismo são efémeros, assim como os filmes, pelo que qualquer estratégia desenhada que contempla tais soluções necessita de uma reinvenção regular a fim de garantir a sua sustentabilidade.
- Communicating Science in the Natural Park of Serras D Aire and Candeeiros, First Steps in Science Communication in the HIGHLANDS.3 ProjectPublication . Silva, Julio; Santos, Luis; Lopes, VascoO turismo de natureza é uma das indústrias que mais cresceu no mundo desde o início do século. Este crescimento é raramente acompanhado pelos sistemas de gestão de áreas naturais que lutam contra o número crescente de turistas, falta de infraestruturas, informação e organização. Uma das soluções adotadas por muitas áreas naturais é a adoção de classificações adicionais, tais como reservas de biosfera, Ramsar, Natura 2000, entre muitas outras. Esta abordagem estratégica comprometeu a maior parte das estruturas de gestão aos esforços burocráticos, tornando difícil o processo de adaptação. As várias classificações, embora facilmente compreendidas, ficam aquém dos objetivos pretendidos, apresentando metodologias tradicionais, promoção ineficaz, baixo envolvimento local e estratégias de educação convencionais. O conhecimento académico e o profissionalismo audiovisual podem produzir materiais promocionais e de vídeo documental para uma vasta gama de públicos, fornecendo ferramentas de comunicação, educacionais e de desenvolvimento. A comunicação científica é uma poderosa ferramenta de gestão de áreas classificadas, a participação na gestão por entidades regionais, beneficia o envolvimento de municípios, instituições de ensino superior, organizações não governamentais e stakeholders, intervindo no desenvolvimento territorial sustentável, com responsabilidades na promoção, sensibilização e comunicação. Este estudo apresentará um vídeo introdutório exemplificador da estratégia de comunicação do Parque Natural das Serras D'Aire e Candeeiros, adaptável a outras áreas protegidas como estratégia de turismo. Conclui-se que a comunicação em áreas naturais classificadas deve ser regida pelo mesmo rigor e qualidade exigidos em ciência sem perder o interesse necessário pela sua comunicação efetiva e eficiente, para se obter turismo de qualidade.
- Deterioration of the “Quinta Nova Torres Vedras” wall tile panel – an analytical approachPublication . Triães, Ricardo; Santos, Luis; Coroado, João; Rocha, FernandoWall tile panels were commonly used in recreational open outdoors spaces in 18th Century noble houses I Portugal. The nature of their location and the lack of maintenance of such spaces, which lost their purpose during the 20th century, contributed to their natural deterioration. In order to preserve one such panel and facilitate the conservation treatment, it was removed from its location and transported to the facilities of the Polytechnic Institute of Tomar, Portugal. The interest in studying this particular panel was prompted by the advanced stages of deterioration observed in some tiles, where natural succession of biological colonisation and weathering were registered as some of the main deterioration causes. Furthermore, the advanced deterioration stages indicate that removal was a necessary action, as natural weathering would lead to its destruction. The study involved a thorough analysis of the environmental characteristics of the wall placement, the wall materials themselves, the mortar, the ceramic body and the glaze. The methodologies used involved microscopic and laboratory testing to evaluate the extent of lichen colonisation and its influence in the loss of glaze and posterior deterioration of the ceramic body. Results indicate that natural and environmental characteristics, combined with substrate typology and micro-organisms, contribute to accelerate the deterioration process, though appropriate techniques of preventive conservation can be used in specific panels or broader situations. This study will enable the development of innovative methodological and technical approach to the conservation problem here portrayed.
- Dose rate effects on the selective radiosensitization of prostate cells by GRPR-targeted gold nanoparticlesPublication . Marques, Ana; Belchior, Ana; Silva, Francisco; Marques, Fernanda; Campello, Maria Paula Cabral; Pinheiro, Teresa; Santos, Pedro; Santos, Luis; Matos, António P. A.; Paulo, AntónioFor a while, gold nanoparticles (AuNPs) have been recognized as potential radiosensitizers in cancer radiation therapy, mainly due to their physical properties, making them appealing for medical applications. Nevertheless, the performance of AuNPs as radiosensitizers still raises important questions that need further investigation. Searching for selective prostate (PCa) radiosensitizing agents, we studied the radiosensitization capability of the target-specific AuNP-BBN in cancer versus non-cancerous prostate cells, including the evaluation of dose rate effects in comparison with non-targeted counterparts (AuNP-TDOTA). PCa cells were found to exhibit increased AuNP uptake when compared to non-tumoral ones, leading to a significant loss of cellular proliferation ability and complex DNA damage, evidenced by the occurrence of multiple micronucleus per binucleated cell, in the case of PC3 cells irradiated with 2 Gy of γ-rays, after incubation with AuNP-BBN. Remarkably, the treatment of the PC3 cells with AuNP-BBN led to a much stronger influence of the dose rate on the cellular survival upon γ-photon irradiation, as well as on their genomic instability. Overall, AuNP-BBN emerged in this study as a very promising nanotool for the efficient and selective radiosensitization of human prostate cancer PC3 cells, therefore deserving further preclinical evaluation in adequate animal models for prostate cancer radiotherapy.
- Environmental Factors Affecting the Efficiency of Water Reservoir Restoration Using Microbiological BiotechnologyPublication . Mazur, Robert; Jakubiak, Mateusz; Santos, LuisAquatic ecosystems are often subject to degradation due to various environmental stressors. The accumulation of an organic sediment layer causes shallowing, algal blooms, and hypertrophy in water reservoirs. The processes of overgrowth and shallowing lead to a reduction in the ecosystem services provided by the reservoir as well as potentially causing the disappearance of the water body. To address these challenges and restore the ecological balance of water reservoirs, effective and sustainable revitalisation methods are essential. In recent years, biotechnological approaches, particularly utilizing microbiological interventions, have emerged as promising strategies for water reservoir revitalization. Microorganisms, with their remarkable ability to degrade pollutants and enhance nutrient cycling, offer great potential in remediating environmental issues in a natural and eco-friendly manner. This article presents the results of a study of 33 Polish reservoirs subjected to reclamation with microbial biopreparations from 2014 to 2023. The results of changes in bottom sediment reduction, water transparency, dissolved oxygen concentration, and water turbidity are presented. Reduction in morphological changes in the fraction of soft organic sediments, an improvement in the oxygen profile of the bottom and surface water layers, and an increase in water transparency were observed after reclamation with the use of biopreparations.
- Integrated Analysis of Tourism Offer from Golegã and Torres Novas MunicipalitiesPublication . Santos, Luis; Silva, Julio; Lopes, Eunice R.; Simões, JorgePost pandemic tourism observes a worldwide consumer choice shift from the traditional sun and beach to adventure and nature-based tourism. While interesting for many countries such as Portugal where interior regions observe abandonment and deteriorating economic development, this new economic boost presents unforeseen risk. Both Municipalities hold similar potential and diversity of assets, from cultural festivities to natural classified areas. However, administrative individuality contributes towards competition, jeopardising the necessary quality of tourism. The current study analyses the evolution of tourism between 2011 and 2021 in the municipalities of Golegã and Torres Novas in terms of number and diversity of beds, support infrastructures, and tourists. Furthermore, a spatial analysis of tourism diversity evaluates the essence in each municipality. Using diversity of touristic offer as the core offer can be a drawback if badly planned. The necessary required balanced will award quality potential to market this concept, otherwise leading to dissatisfaction and losses. A thorough analysis of the existing diversity and potential for new niche tourism, dictated the diversification of the current offer and which areas hold space for growth. As a conclusion a joint model of adaptable integrated tourism for both municipalities is presented as a strategic solution for tourism and sustainable development for the region
- MDIR Monthly Ignition Risk Maps, an Integrated Open-Source Strategy for Wildfire PreventionPublication . Santos, Luis; Vasco Lopes; Baptista, CecíliaCountries unaccustomed to wildfires are currently experiencing wildfire as a new climate-change reality. Understanding how fire ignition and propagation are correlated with temperature, orography, humidity, wind, and the mixture and age of individual plants must be considered when designing prevention strategies. While wildfire prevention focuses on fire ignition avoidance, firefighting success depends on early ignition detection, meaning that, in either case, ignition plays a major role. The current case study considered three Portuguese municipalities that annually observe frequent fire ignitions (Tomar, Ourém, and Ferreira do Zêzere) as the testing ground for the Modernized Dynamic Ignition Risk (MDIR) strategy, thus evaluating the efficiency of MDIR and the efficacy of the variables used. This methodology uses geographic information systems technology sustained by open-source satellite imagery, along with the Habitat Risk Assessment model from the InVEST software package, as drivers for the MDIR application. The MDIR approach grants frequent update capabilities and fully open-sourced high ignition risk area identification, producing monthly ignition risk maps. The advantage of using this method is the ease of adaptation to any current monitoring strategy, awarding further efficiency and efficacy in reducing ignitions. The approach delivered adequate results in estimating ignitions for the three Portuguese municipalities, achieving, for several months, prediction accuracy percentages of over 70%. For the studied area, MDIR clearly identifies areas of high ignition risk and delivers an average of 62% success in predicting ignitions, thus showing potential for analyzing the impact of policy implementation and monitoring through the strategy design.
- Modelling of long term low water level in mountain river catchments areaPublication . Kopacz, Marek; Kowalewski, Zbigniew; Santos, Luis; Mazur, Robert; Lopes, Vasco; Kowalczyk, Agnieszka; Bar-Michalczyk, DominikaChanging atmospheric conditions, including above all the deepening extreme weather phenomena, are increasing from year to year. This, in consequence, causes an increase in the incidence of low outflows. The study compares low water levels for two catchments: Biała Woda and Czarna Woda, and phosphorus and nitrogen load using the Nutrient Delivery Ratio (NDR) model in InVEST software. The objective of the NDR is to map nutrient sources from catchment area and transfer to the river bed. The nutrient loads (nitrogen and phosphorus) spread across the landscape are determined based on a land use (LULC) map and associated loading rates described in literature. The studies have shown that low water levels have been more common recently and pose the greatest threat to the biological life in the aquatic ecosystems. The structure of land use is also of great importance, with a significant impact on the runoff and nitrogen and phosphorus load. Phosphorus and runoff from surface sources to the water of Biała Woda and Czarna Woda catchments area has been reduced in forested areas. Only higher run-offs are observed in the residential buildings zone. The nitrogen load was also greater in the lower (estuary) parts of both catchments, where residential buildings dominate.
- Modelling past, present and future Ecosystem Services supply in a protected floodplain under land use and climate changesPublication . Gaglio, M.; Aschonitis, V.; Pieretti, L.; Santos, Luis; Gissi, E.; Castaldelli, G.; Fano, E.A.The understanding of protection initiatives’ effects on the delivery of Ecosystem Services (ESs) is of paramount importance to attain sustainable management in Protected Areas (PAs). Protected floodplains provide important ESs to local populations such as water flow regulation and climate regulation through carbon storage. This study investigates the effects of biodiversity protection initiatives (i.e. declaration of Protected Areas – PAs) and the related spatio-temporal land use/land cover (LULC) changes on ecosystem services (ESs) in the Nature Reserve of Paul do Boquilobo – NRPB (Central Portugal). Special focus was made on climate mitigation (i.e. carbon storage and sequestration) and water-related (flood mitigation, water regulation and supply) ESs. The analysis was performed using InVEST model. Three dates of past LULC conditions were considered in the analysis (1967, 1990 and 2015). Moreover, two future alternative LULC scenarios for 2050 were designed (a “Business”- BUS and a “Naturalization”- NAT scenario). The BUS scenario considers a LULC distribution towards high productive agricultural systems, considering only a restricted central core of natural areas, while the NAT scenario considers full coverage of natural areas. The two future extreme LULC scenarios were analyzed considering both no climate change and climate change effects on water-related services based on the pessimistic rcp8.5 climatic scenario. The results showed that PA declaration of NRPB after 1980 increased carbon storage-sequestration and flood mitigation (higher water storage, lower recharge and runoff). The analysis of future LULC scenarios demonstrated that the complete renaturing in combination with climate change (reduction of precipitation, increase of temperature) may lead to severe reduction of recharge and runoff. These results indicate that conflicts may appear between specific water regulation services by the application of PA initiatives in places where groundwater resources are limited or minimum ecological flows in surface waters are difficult to be preserved.
- Modernized Forest Fire Risk Assessment Model Based on the Case Study of three Portuguese Municipalities Frequently Affected by Forest FiresPublication . Santos, Luis; Lopes, Vasco; Baptista, CecíliaThe number of forest fires ignitions has decreased worldwide, thus observing increased levels of intensity and destruction, endangering urban areas and causing material damages and deaths (Portugal, 2017). Forest fire hazard mapping supported by the surveillance strategy targeted at very susceptible areas with high losses potential are the common tools of fire prevention. Each municipality creates its own Forest Fire Hazard Map, and so it is observed that along the administrative boundaries, discrepancies occur, even when identical types of land use are in place. The evolution of geographic information systems technology sustained by the open-source satellite imagery, along with the innovative Habitat Risk Assessment model of the InVEST software, allowed the creation of an easily applicable trans-administrative boundary fire hazard map, with frequent update capabilities and fully open source. This work considered three municipalities (Tomar, Ourém, and Ferreira do Zêzere) that annually observe various forest fire occurrences. Results enabled the creation of a homogeneous Forest Fire Risk Map, using landuse, slope, road access network, fire ignitions’ history, visualization basins, and the Normalized Difference Vegetation Index (NDVI) as variables. All variables correlate with each other using different weights, in which the different classes of land use are considered as habitats and the remaining variables as fire hazard stressors. The results produce a coherent monthly updated Risk Map, which is an alternative to many risk assessment systems used worldwide.