http://hdl.handle.net/10174/14490 2026-04-10T13:09:30Z http://hdl.handle.net/10174/41432 Title: Ceramic Paste Recipes at Tibes Authors: Milantchi, Martinez; Tsoupra, Anna; Mirão, José Abstract: Ceramic Paste Recipes at Tibes 2024-01-01T00:00:00Z http://hdl.handle.net/10174/41371 Title: NO CENTRO DO CENTRO DOS PERDIGÕES: O CONTEXTO DE DEPOSIÇÃO DE CABEÇA HUMANA DA FOSSA 96 (2ª METADE DO 3º MILÉNIO A.C.) Authors: Valera, António; Nelson, Almeida; Shaw Evangelista, Lucy; Maurer, Anne-France; Barrocas Dias, Cristina; MacRoberts, Rebecca; Ribeiro, Sara; Santos, José Francisco Abstract: Apresenta-se o contexto registado na Fossa 96 localizada no centro de uma estrutura cerimonial em madeira (“Timber Circle”) no coração do recinto de fossos dos Perdigões (Reguengos de Monsaraz), a qual foi reaberta para a deposição de uma cabeça humana decapitada em época campaniforme, seguida de um reenchimento ao longo do qual se registou um conjunto de deposições e actos de comensalidade. São apresentados os resultados de análises bioantropológicas, zooarqueológicas, isotópicas de mobilidade e dietas, e datações de radiocarbono, assim como a breve integração deste contexto nas práticas ritualizadas que caracterizam esta área central dos Perdigões na segunda metade do 3º milénio a.C. 2024-01-01T00:00:00Z http://hdl.handle.net/10174/39173 Title: What do We Know about Microplastics Effects in Soil? Authors: Pinto, Ana Paula; Ferreira, Teresa; Dordio, Ana V.; Carvalho, Alfredo Jorge Palace; Faria, Jorge M. S. Editors: Vithanage, Meththika; Narasimha, Majeti; Prasad M, Vara Abstract: In this century, climate change is unparalleled and the most sensitive environmental problem humanity faces, with potentially very serious consequences in the coming decades. Other important challenges include the urgent need to reduce the volume of pollutants discharged into various environmental compartments and mitigate the effects of their release on the functioning of natural ecosystems. In this context, plastic pollution is a primary environmental concern. This issue is drawing increased attention from governments and the global scientific community since the ubiquitous presence of plastic in all environmental compartments (water, soil, air, and biota) is causing deleterious effects that have not yet been fully studied or understood. Microplastics (MPs) (particle size <5 mm) have been widely detected in aquatic and terrestrial ecosystems, prompting a need for studies that assess their impact on these ecosystems. Anthropogenic activities such as the use of plastics for agricultural mulching, irrigation with wastewater, application of soil amendments (e.g. sewage sludge and compost), and atmospheric deposition turn soil into one of the largest storage reservoirs for MPs. Furthermore, pollutants (organic contaminants, toxic metals, pathogens) that adhere to and are transported with MPs can pose an additional major environmental risk. The persistence of MPs in soils, due to their low biodegradability, can change the soils' physicochemical properties and affect their microbial communities and enzymatic activities, potentially causing negative impacts in terrestrial ecosystems. Recent research has also identified a high risk of MP transfer from terrestrial ecosystems into the human food chain, anticipating MP pollution as a future threat to food security and sustainable agriculture. This chapter condenses the current understanding of the occurrence, sources, and potential ecological risks of MPs in terrestrial soil ecosystems. 2023-01-01T00:00:00Z http://hdl.handle.net/10174/39141 Title: Cor e Técnica na Cerâmica de Revestimento Medieval: o Caso dos Ladrilhos Cistercienses do Mosteiro de Alcobaça Authors: Carvalho, Fernanda; Coentro, Susana; Alves, Luís Cerqueira; Silva, Rui C.; Relvas, Cátia; Ferreira, Teresa; Mirão, José; Trindade, Rui A.; Costeira, Isabel; Muralha, V. S. F. Editors: Conde, A.F.; Aleixo, S.; Ferreira, T. Abstract: Founded in 1153, the Monastery of Alcobaça reflects the original values of the Order of Cister through its elegant architecture. The glazed tiles that once coated the floor of the apse worked as a rare decorative element through the patterns created with their different colours and shapes. Considered 13th-century originals, these are some of the first examples of architectural glazed tiles in Portugal. The main goal of this research was to characterize their colour palette through a multi-analytical study of the glazes. The techniques used were optical microscopy (OM), particle-induced X-ray emission micro spectrometry (μ-PIXE), and electron scanning microscopy with energy-dispersive X-ray spectroscopy (SEM-EDS). The colours identified in the glazed tiles, all monochromatic, were white, turquoise blue, brown and different shades of green. The analyses revealed that this palette was obtained with tin oxide, copper oxide and iron oxide in different amounts mixed with lead glazes. The identification of tin-opacified glazes suggests this being one of the first examples of this Islamic technology used in ceramic pavements in Christian Portugal. 2024-01-01T00:00:00Z