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Rice husk, brewer’s spent grain, and vine shoot trimmings as raw materials for ...

Guimarães, Ana Cristina Silva Esperança; Mota, Ana C.; Pereira, Ana Sofia Silva; Fernandes, Margarida; Lopes, Marlene; Belo, Isabel

Solid by-products with lignocellulosic structures are considered appropriate substrates for solid-state fermentation (SSF) to produce enzymes with diverse industrial applications. In this work, brewer’s spent grain (BSG), rice husk (RH), and vine shoot trimmings (VSTs) were employed as substrates in SSF with Aspergillus niger CECT 2088 to produce cellulases, xylanases, and amylases. The addition of 2% (NH4)2SO4...


As aparências iludem

Fernandes, Margarida; Reis Costa, Isabel; Auxtero, Maria Deolinda


Development of a cost-effective media for biosurfactants production by Pseudomo...

Braga, Adelaide Correia; Cardoso, Beatriz Alexandra Batista; Fernandes, Margarida; Costa, João Manuel Rainha; Silva, Carla; Rodrigues, L. R.

In the last years, the textile industry has shown a growing interest in biosurfactants due to their biocompatibility , biodegradability , and versatility at various pH and temperature ranges . These compounds have found applications as softeners, wetting agents, lubricants, foam stabilizers, and even in the scouring of wool. This study aims to develop an economically efficient medium for biosurfactant productio...


Influence of glucose, sucrose, and dextran coatings on the stability and toxici...

Vukoje, Ivana; Lazic, Vesna; Sredojevic, Duan; Fernandes, Margarida; Lanceros-Méndez, S.; Ahrenkiel, S. Phillip; Nedeljkovic, Jovan M.

Aqueous colloids, consisting of 1530 nm-sized silver nanoparticles (Ag NPs), were prepared using the reducing and stabilizing abilities of glucose, sucrose, and dextran. The long-term stability of coated Ag NPs increases from glucose over sucrose to dextran, i.e., with the increase of the molecular weight of carbohydrate molecules. The density functional theory (DFT) calculations of the partial atomic (Mulliken...


MAMMALS IN PORTUGAL: A data set of terrestrial, volant, and marine mammal occur...

Grilo, Clara; Afonso, Beatriz C.; Afonso, Filipe; Alexandre, Marta; Aliácar, Sara; Almeida, Ana; Alonso, Ivan Prego; Álvares, Francisco; Alves, Paulo

Mammals are threatened worldwide, with 26% of all species being included in the IUCN threatened categories. This overall pattern is primarily associated with habitat loss or degradation, and human persecution for terrestrial mam mals, and pollution, open net fishing, climate change, and prey depletion for marine mammals. Mammals play a key role in maintaining ecosystems func tionality and resilience, and theref...


MAMMALS IN PORTUGAL : A data set of terrestrial, volant, and marine mammal occu...

Grilo, Clara; Afonso, Beatriz C.; Afonso, Filipe; Alexandre, Marta; Aliácar, Sara; Almeida, Ana; Alonso, Ivan Prego; Álvares, Francisco; Alves, Paulo

Mammals are threatened worldwide, with 26% of all species being includedin the IUCN threatened categories. This overall pattern is primarily associatedwith habitat loss or degradation, and human persecution for terrestrial mam-mals, and pollution, open net fishing, climate change, and prey depletion formarine mammals. Mammals play a key role in maintaining ecosystems func-tionality and resilience, and therefore...


MAMMALS in Portugal: A data set of terrestrial, volant, and marine mammal occur...

Grilo, Clara; Afonso, Beatriz C.; Afonso, Filipe; Alexandre, Marta; Aliácar, Sara; Almeida, Ana; Alonso, Ivan Prego; Álvares, Francisco; Alves, Paulo

Mammals are threatened worldwide, with 26% of all species being includedin the IUCN threatened categories. This overall pattern is primarily associatedwith habitat loss or degradation, and human persecution for terrestrial mam-mals, and pollution, open net fishing, climate change, and prey depletion formarine mammals. Mammals play a key role in maintaining ecosystems func-tionality and resilience, and therefore...


Ionic liquid-based materials for biomedical applications

Correia, Daniela Maria; Fernandes, Liliana Correia; Fernandes, Margarida; Hermenegildo, Bruno; Meira, Rafaela; Ribeiro, Clarisse; Ribeiro, Sylvie

Ionic liquids (ILs) have been extensively explored and implemented in different areas, ranging from sensors and actuators to the biomedical field. The increasing attention devoted to ILs centers on their unique properties and possible combination of different cations and anions, allowing the development of materials with specific functionalities and requirements for applications. Particularly for biomedical app...


Magnetoelectric polymer-based nanocomposites with magnetically controlled antim...

Fernandes, Margarida; Martins, Pedro Libânio Abreu; Correia, Daniela M.; Carvalho, Estela; Gama, F. M.; Vazquez, Manuel; Bran, Cristina

The emergence of antimicrobial resistance is considered a public health problem due to the overuse and misuse of antibiotics which are losing efficacy toward an increasing number of microorganisms. Advanced antimicrobial strategies via development of alternative drugs and materials able to control microbial infections, especially in clinical settings, are urgently needed. In this work, nanocomposite films were ...


A família Trago: uma ficção bem fundada

Fernandes, Margarida

Based on a fictional work, A família Trago, by the CapeVerdian wríter Germano Almeida, and taking the standpoint of Pierre Bourdieu, some issues relating to kinship, in the anthropological sense, are here discussed. We sustain that fictionwriting should be considered as a valid source for anthropology.

Date: 2020   |   Origin: Africana Studia

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