351 documents found, page 1 of 36
Heterotrophic cultivation of Chlorella vulgaris yellow mutant on sidestreams: M...
Trovão, Mafalda; Barros, Ana; Machado, Adriana; Reis, Ana; Pedroso, Humberto; Espírito Santo, Gonçalo; Correia, Nádia; Costa, Monya; Ferreira, SaraMicroalgal protein is a promising feedstock to complement and/or replace other protein sources. Besides requiring less land and water usage, microalgae production is a more sustainable process, especially if industrial sidestreams are used as nutrient sources. Additionally, the heterotrophic cultivation of microalgae, such as Chlorella vulgaris, enables the achievement of much higher biomass productivity and lo...
Substituição da formalina neutra a 10% por agave na fixação de material biológi...
Almeida, Beatriz; Silva, Joana; Maria, Mariana; Cunha, Gilda; Mendonça, Paula; Ladeira, CarinaA utilização de formaldeído na fixação de amostras biológicas apresenta riscos para a saúde humana e ambiente, devido à sua toxicidade e potencial carcinogénico, realçando a necessidade de encontrar alternativas mais seguras e sustentáveis. O objetivo deste estudo é testar o agave como fixador biológico, comparando os seus resultados com os da formalina neutra tamponada a 10% (FNT a 10%) em termos de preservaçã...
Substituição da formalina neutra a 10% por agave na fixação de material biológi...
Almeida, Beatriz; Silva, Joana; Maria, Mariana; Cunha, Gilda; Mendonça, Paula; Ladeira, CarinaA fixação de tecidos biológicos é essencial para preservar a estrutura celular ao evitar a autólise. O formaldeído, comummente usado sob a forma de formalina (solução aquosa de 37-40% de formaldeído), é o mais usado, por ter baixo custo e grande poder de penetração nos tecidos, com artefactos de retração reduzidos, no entanto apresenta riscos para a saúde humana e ambiente, devido à sua toxicidade e potencial c...
Mediterranean temporary pond restoration invcreases bat species richness but no...
Silva, Joana; Cruz, Carla; Marques, J. TiagoClimate change scenarios predict a continued decrease in rainfall across the Mediterranean regions in the next years, emphasizing concerns about water scarcity. The ongoing destruction, modification, and drainage of wetland habitats further intensifies this risk to the landscape. Ponds are vulnerable aquatic habitats that supply essential ecosystem services and provide foraging and drinking resources to bats. T...
Music as a communication strategy
Silva, JoanaMusic has several powers, among them the best known, its influence on emotions and its association with memories. However, it is also a strategic form of communication and a bridge to manipulate consumer behavior. This article analyses how music constitutes a communication element, taking into account its role in buildinseg brand identity and in remembering advertising messages. The methodology is bad on the re...
I Know What I Have to Do, but I Don’t Do It”: The Relationship Between Knowledg...
Silva, Joana; Antunes, Cristina; Batista, Samanta; Braga, José Luís; Gomes, Angélica; Guedes, Rosa; Barbosa, Anabela; Forte, Pedro; Imaginário, CristinaThis study aims to analyze the correlation between healthcare professionals’ knowledge of hand hygiene protocols and their actual adherence to these practices. Specifically, we investigate whether higher knowledge levels correspond to better compliance, and we examine potential influencing factors such as professional role, gender, and prior training in infection control. Methods: A non-probabilistic, convenien...
Blunt traumatic injuries of thoracic aorta, a retrospective study
Baldaia, Leonor; F. Antunes, Luís; Silva, Miguel; Silva, Eduardo; Nunes, Celso; C. Oliveira, Vânia; Silva, Joana; Fonseca, ManuelINTRODUCTION: Blunt thoracic aortic injuries (BTAI) are defined as a tear in the thoracic aorta caused by a high energy blunt trauma with sudden deceleration and increased intravascular pressure. The most common reported mechanism of injury is motor vehicle accidents, and it can be potentially lethal. The purpose of this study was to analyze and report our center’s experience in the treatment of blunt traumatic...
Warthin’s Tumor: A Rare Case Report of a Bilateral Multifocal Parotid Tumor Ass...
Silva, Joana; Teixeira, Nelson; Ramos, Nuno; Ramos, SânciaWarthin’s tumor is the second most common benign neoplasm of the parotid gland and frequently presents with multifocal and bilateral involvement, either synchronously or metachronously, up to 20% - 30% of cases. More rarely, extraparotid locations may also occur. This case report describes a Warthin’s tumor presenting synchronously as a multifocal bilateral parotid tumor in association with an extraparotid loca...
Oxyfluorfen: a novel metabolic inhibitor to select microalgal chlorophyll-defic...
Trovão dos Santos, Mafalda; Cardoso, Lucas; Schüler, Lisa; Machado, Adriana; Santo, Gonçalo Espírito; Pedroso, Humberto; Reis, Ana; Barros, AnaNowadays, there is an increasing demand for novel feedstocks and alternative protein sources to meet global needs. Because of their rich nutritional profiles and high protein contents, microalgae-based food products and supplements are being developed. Nonetheless, these products present organoleptic characteristics such as taste, smell and colour that are often considered unpleasant by human and animal consume...
Microalgae as a selenium vehicle for nutrition: a review
Pires, Rita; Costa, Margarida; Pereira, Hugo; Cardoso, Helena; Ferreira, Luís; Lapa, Nuno; Silva, Joana; Ventura, MárciaSelenium (Se) is essential for human and animal nutrition, playing a key role in antioxidant and immune functions. Organic Se is better for supplementation because it is more efficiently assimilated and less toxic than its inorganic form. Due to the scarcity of Se in European soils, supplementation in feed and food is necessary. Currently, inorganic Se (sodium selenite and selenate) and organic Se in Se-enriche...