18 documents found, page 1 of 2
Analytical characterization of historical mortars from the Roman villa of Friel...
Tanjil, Tanjil; Silva, Ana R.; José C., Quaresma; Moita, Patrícia; Galacho, CristinaThe analytical characterization of mortar samples from the Roman archaeological site of Frielas, located in Lisbon, Portugal; was carried out by means of X-diffraction (XRD), thermogravimetry (TGA-DTG), optical microscopy and scanning electron microscopy coupled with energy-dispersive spectroscopy (SEM-EDS), acid attack and granulometric analysis. A total of eighteen mortar samples were collected from the diffe...
Desafios e soluções na gestão de águas residuais têxteis: Uma abordagem biológica
Barbosa, Sónia G.; Nicolau, Ana; Silva, Ana R.; Salvador, Andreia Filipa Ferreira; Soares, Olívia S. G. P.; Pereira, Manuel Fernando R.; Gonçalves, AnaOs processos da indústria têxtil consomem grandes volumes de água e geram efluentes resistentes aos processos de tratamento convencionais. Uma gestão eficaz da água requer tecnologias de tratamento que enfrentem a complexidade e variabilidade dos efluentes, assegurando qualidade para reutilização em processos húmidos. Neste estudo testaram-se tratamentos biológicos anaeróbios e aeróbios, suplementados com 2 tip...
Tratamento de águas residuais sintéticas contaminadas com carbamazepina usando ...
Costa, Mariana; Mesquita, D. P.; Salvador, Andreia Filipa Ferreira; Silva, Ana R.; Ferreira, Eugénio C.; Quintelas, Cristina Maria CatalãoUm reator descontínuo sequencial (SBR) inoculado com lamas granulares (AGS) foi utlizado para tratar água residual sintética contaminada com carbamazepina (CBZ) a três concentrações distintas: 2, 5 e 8 mg/L. As maiores taxas de remoção foram observadas a 8 mg/L, tendo-se, no entanto, observado grandes oscilações na eficiência de remoção ao longo dos três ensaios. Estas oscilações devem-se, muito provavelmente, ...
The cerebellum is causally involved in episodic memory under aging
Almeida, Armando; Martins, Ana R.; Amaral, Lénia; Valério, Daniela; Bukhari, Qasim; Schu, Guilherme; Nogueira, Joana; Spínola, MónicaEpisodic memory decline is a major signature of both normal and pathological aging. Many neural regions have been implicated in the processes subserving both episodic memory and typical aging decline. Here, we demonstrate that the cerebellum is causally involved episodic memory under aging. We show that a 12-day neurostimulation program delivered to the right cerebellum led to improvements in episodic memory pe...
Exploring the correlations between epi indicators of COVID-19 and the concentra...
Silva, Ana R.; Mesquita, Daniela P.; Salomé Duarte, M.; Lado Ribeiro, Ana R.; Pereira, M.Fernando R.; Madalena Alves, M.; Monteiro, SílviaThe COVID-19 pandemic caused by the SARS-CoV-2 virus led to changes in the lifestyle and human behaviour, which resulted in different consumption patterns of some classes of pharmaceuticals including curative, symptom-relieving, and psychotropic drugs. The trends in the consumption of these compounds are related to their concentrations in wastewater systems, since incompletely metabolised drugs (or their metabo...
Detoxification of ciprofloxacin in an anaerobic bioprocess supplemented with ma...
Silva, Ana R.; Cavaleiro, Ana Júlia Viana; Soares, O. Salomé G. P.; Braga, Cátia Sofia Neves; Salvador, Andreia Filipa Ferreira; Pereira, M. Fernando R.In anaerobic bioreactors, the electrons produced during the oxidation of organic matter can potentially be used for the biological reduction of pharmaceuticals in wastewaters. Common electron transfer limitations benefit from the acceleration of reactions through utilization of redox mediators (RM). This work explores the potential of carbon nanomaterials (CNM) as RM on the anaerobic removal of ciprofloxacin (C...
Comprehensive review on the interaction between natural compounds and brain rec...
Silva, Ana R.; Grosso, Clara; Delerue-Matos, Cristina; Rocha, João M.Given their therapeutic activity, natural products have been used in traditional medicines throughout the centuries. The growing interest of the scientific community in phytopharmaceuticals, and more recently in marine products, has resulted in a significant number of research efforts towards understanding their effect in the treatment of neurodegenerative diseases, such as Alzheimer's (AD), Parkinson (PD) and ...
Ciprofloxacin removal catalysed by conductive carbon materials
Silva, Ana R.; Antunes, Ana C.; Cavaleiro, Ana Júlia Viana; Soares, O. S. G. P; Pereira, M. Fernando R.; Alves, M. M.; Pereira, LucianaCurrent wastewater treatment technologies are not effective in the removal of pharmaceuticals. In anaerobic bioreactors, the electrons produced during the oxidation of organic matter can potentially be used for the biological reduction of pharmaceuticals. However, these reactions occur generally at a slow rate, due to electron transfer limitations, and might be accelerated through redox mediators (RM). Carbon n...
Anatomic Thoracoscopic Repair of Esophageal Atresia
Fonte, Joana; Barroso, Catarina; Lamas-Pinheiro, Ruben; Silva, Ana R.; Correia-Pinto, JorgeBackground: The thoracoscopic approach to repair esophageal atresia (EA) with tracheoesophageal fistula (TEF) provides excellent view, allowing the most skillful surgeons to spare the azygos vein by performing the esophageal anastomosis over (on the right side) the azygos vein. Seeking the most anatomic repair, we started to perform the esophageal anastomosis underneath (on the left side) the azygos vein: anato...
Facile synthesis of palladium nanoparticles supported on silica: An efficient p...
Sahu, Debojeet; Silva, Ana R.; Das, PankajA convenient one-step method for synthesizing highly dispersed palladium nanoparticles supported on silica, without taking assistance from any external reductant or stabilizer, has been developed. The supported nanoparticles were characterized by N-2-adsorption desorption, XRD, HRTEM, SEM-EDX, XPS, ICP analyses and applied as catalyst for Suzuki-Miyaura reactions of aryl halides. The reactions with aryl bromide...