Repository logo

Sapientia

UAlg Scientific Repository

 

Recent Submissions

Case study: water reuse in citrus farming - carbon emissions reduction and ecosystems protection
Publication . Resende, Flávia C.; Silva, Manuela Fernanda Gomes Moreira da; Anibal, Jaime; Martins, António; Duarte, Amilcar
Anthropogenic factors and climate change are putting increasing pressure on natural water resources, threatening habitats and biodiversity (Libutti et al.2018, Rebelo et al., 2020). Worldwide, agriculture uses around 70% of the total water used in human activities. In addition, the demand for food and animal feed production tends to increase with the growth of the world population (Parris, 2010; Becerra-Castro et al., 2015; Chartzoulakis & Bertaki, 2015; Karandish & Šimunek, 2016). Meanwhile, freshwater use has exceeded recharge levels, leading to the desiccation of water streams, and the groundwater over-extraction has promoted saline intrusion phenomena in several coastal areas, posing additional constraints to agricultural irrigation, decreasing production and lowering crop yields (Jenkins & Sugden, 2006). To face this scenario, agriculture sustainability in more vulnerable regions, such as the south of Portugal, where water scarcity is a common reality, involves the choice of an alternative water supply and more efficient irrigation systems (Fatta-Kassinos et al., 2011; Jiang et al., 2016), as well as crop selection.
Pensamento em Enfermagem: paradigmas, escolas de pensamento, filosofias, teorias, modelos teóricos
Publication . Matos, Filomena
O texto aborda conteúdos relativos à evolução do Pensamento crítico de Enfermagem, tendo por base algumas teóricas. Serve de apoio ao estudo da Unidade Curricular Epistemologia, História e correntes de Pensamento em Enfermagem
Apontamentos de história de enfermagem em Portugal e no mundo
Publication . Matos, Filomena
O livro aborda conteúdos relativos à História de Enfermagem em Portugal e no Mundo, resumindo brevemente várias obras importantes. Serve de apoio ao estudo dos estudantes nas Unidade Curricular Epistemologia, História e correntes de Pensamento em Enfermagem
O desenvolvimento da criança e do adolescente – considerações para o cuidar em enfermagem
Publication . Matos, Filomena
O livro aborda conteúdos atualizados relativos ao crescimento e desenvolvimento global da criança desde ao nascimento até aos 18 anos de idade, versando essencialmente o desenvolvimento saudável. Serve de apoio ao estudo dos estudantes nas Unidade Curricular Enfermagem de Saúde Infantil e Pediátrica.
Fate of microbial contamination in a South European Coastal Lagoon (Ria Formosa) under the influence of treated effluents dispersal
Publication . Caetano, Sandra; Correia, Cátia; Torres, Ana Flor; Matos, André Filipe; Ferreira, Cristina; Cravo, Alexandra
Aim: Assessment of the fate of microbial contamination driven from treated wastewater disposal at a highly productive zone on a South European coastal lagoon (Ria Formosa). Methods and results: Microbial indicators of contamination (Total coliforms, Escherichia coli and Enterococci) were evaluated monthly during September 2018-September 2020, at three study areas (Faro, Olhão, Tavira) under different wastewater discharge flows and hydrodynamic conditions. Additional data on E. coli monitoring in bivalves, available from the national institution responsible for their surveillance was also considered. The maximum microbial contamination was found at Faro, the highest-load and less-flushed study area, contrasting the lowest contamination at Olhão, a lower-load and strongly flushed area. The wastewater impact decreased along the spatial dispersal gradients and during high water, particularly at Faro and Tavira study areas, due to a considerable dilution effect. Microbial contamination at Olhão increased during the summer while at the other study areas seasonal evidence was not clear. Data also indicate that E. coli in bivalves from BPZ next to the three study areas reflected the differentiated impact of the wastewater treatment plants effluents on the water quality of those areas. Conclusions: Effluent loads together with local hydrodynamics, water temperature, solar radiation, precipitation and land runoff as well as seabirds populations and environmentally adapted faecal or renaturelized bacterial communities, contributed to microbial contamination of the study areas.