16 documents found, page 1 of 2

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Solvent-driven extraction of bioactive compounds from propolis for application ...

Peixoto, Sara; Nascimento, Amanda Priscila Silva; Rocha, Cristina M.R.; Barros, Ana Novo

Propolis is a resinous substance collected by honeybees from plant exudates and enriched with beeswax, pollen, and enzymes. Known for its antioxidant, antimicrobial, and anti-aging properties, it has attracted interest for applications in food, nutraceutical, and cosmetic industries. In this work, Portuguese propolis from the Guarda region was characterized to evaluate how different solvents influence extractio...


Unseen but unforgettable: refractive bacilli in the gram stain of a muscular ab...

Carvalho, Bruno; Velho Meirinhos, Sara; Jantarada Domingos, Gonçalo; Peixoto, Sara; Cristino, José Melo

The epidemiology of tuberculosis has been altered due to the increased use of immunosuppressive therapies (chemotherapy and biologic agents), the human immunodeficiency virus (HIV) epidemic, and the changing migration patterns. Extrapulmonary tuberculosis occurs most often in individuals with HIV infection. Osteoarticular tuberculosis is rare in Western countries, with its diagnosis being performed through cult...


Limits of Viability: Perspectives of Portuguese Neonatologists and Obstetricians

Pais-Cunha, Inês; Peixoto, Sara; Soares, Henrique; Costa, Sandra

Introduction: Advances in neonatal care have improved the prognosis in extremely preterm infants. The gestational age considered for active treatment has decreased globally. Despite implemented guidelines, several studies show variability in practice. The aim of this study was to understand theperspectives of Portuguese neonatologists and obstetricians regarding the management of extremely preterm infants.Metho...

Date: 2024   |   Origin: Acta Médica Portuguesa

O requisito da atividade inventiva da invenção patenteável e as invenções gerad...

Peixoto, Sara

A presente dissertação discorre sobre o requisito da atividade inventiva da invenção para efeitos de obtenção de patente. O objetivo passa por, numa primeira fase, providenciar ao leitor uma análise histórica e conceptual do direito de patente, assimilando os termos e condições em que o mesmo surgiu, se reproduziu e evoluiu, analisando a respetiva concetualização e requisitos gerais, para, depois, numa segunda ...


ARP Case Report nº 27: Neuroendocrine Cell Hyperplasia of Infancy

Peixoto, Sara; Lobo, Maria Luísa; Leitão, João

A 12 month-old male infant was referred to the paediatric pulmonary unit of our tertiary hospital for further investigation. At the age of 4 months-old, he had been referred by his family doctor to a secondary hospital because of respiratory distress since the first month of life and failure to thrive. At that time, clinical observation revealed an increase in the anteroposterior diameter of the chest, elevated...

Date: 2023   |   Origin: Acta Radiológica Portuguesa

Multi-species occupancy modeling reveals methodological and environmental effec...

Peixoto, Sara; Mota-Ferreira, Mário; Chaves, Cátia; Velo-Antón, Guillermo; Beja, Pedro; Egeter, Bastian

Aquatic environmental DNA is increasingly used for biodiversity monitoring, such as surveying threatened and invasive species. Mainstreaming these methods in practi- cal applications, however, still requires significant standardization and optimisation, namely regarding DNA capture methods. Here we evaluated how filter type (standard disc filters vs high-capacity capsules), number of sampling sites, volume of w...


Survival and Neurodevelopmental Outcomes of Premature Infants with Severe Peri-...

Amaral, Joana; Peixoto, Sara; Faria, Dolores; Resende, Cristina; Taborda, Adelaide

Introduction: Severe peri-intraventricular haemorrhage has been associated with higher mortality and neurodevelopmental impairment. The impact of peri-intraventricular haemorrhage alone (without white matter injury) remains controversial. The aim of this study was to evaluate the influence of severe peri-intraventricular haemorrhage, associated or not with cystic peri-ventricular leukomalacia, on mortality and ...

Date: 2022   |   Origin: Acta Médica Portuguesa

A influência do exercício físico na diminuição dos sintomas menstruais em mulhe...

Peixoto, Sara

Introdução: Os sintomas menstruais são condições ginecológicas comuns e frequentemente limitam as atividades diárias de muitas mulheres e levam a problemas no desempenho profissional ou académico. Objetivo: Analisar a influência do exercício na diminuição dos sintomas menstruais em mulheres adultas. Metodologia: A pesquisa foi realizada nas bases de dados PubMed, Web Of Science e PEDro com o intuito de encontra...


ARP Case Report nº 27: What is your diagnosis?

Peixoto, Sara; Lobo, Maria Luísa; Leitão, João

A 12 month-old male infant was referred to the paediatric pulmonary unit of our tertiary hospital for further investigation. At the age of 4 months-old, he had been referred by his family doctor to a secondary hospital because of respiratory distress since the first month of life and failure to thrive. At that time, clinical observation revealed an increase in the anteroposterior diameter of the chest, elevated...

Date: 2022   |   Origin: Acta Radiológica Portuguesa

Gut and faecal bacterial community of the terrestrial isopod porcellionides pru...

Oliveira, Jacinta M. M.; Henriques, Isabel; Read, Daniel S.; Gweon, Hyun S.; Morgado, Rui G.; Peixoto, Sara; Correia, António; Soares, Amadeu M. V. M.

This work aimed to characterize the gut and faeces bacterial communities (BC) of Porcellionides pruinosus using high-throughput sequencing. Isopods were collected from the field and kept in laboratory conditions similar to those normally applied in ecotoxicology tests. Faeces and purged guts of isopods (n=3 × 30) were analysed by pyrosequencing the V3-V4 region of 16 S rRNA encoding gene. Results showed that gu...


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