59 documents found, page 1 of 6
Resveratrol-loaded polydimethylsiloxane-silica hybrid materials: synthesis, cha...
Viegas, Sofia; Marinheiro, Diogo; Bastos, Verónica; Daniel-da-Silva, Ana L.; Vieira, Ricardo; Oliveira, Helena; Almeida, José CarlosIn this work, hybrid materials within the polydimethylsiloxane-silica (PDMS-SiO2) system, synthesized via the sol-gel method, were developed and characterized for their potential to incorporate and release the bioactive compound resveratrol (RES). RES was incorporated into the materials with a high loading efficiency (>75%) using the rotary evaporator technique. This incorporation induced the amorphization of R...
Analysis of the perception of stress factors in nurses working in an Emergency ...
Martins, Marta; Martins, Marta; Almeida, José Carlos; Imaginário, CristinaIntroduction: Stress is a serious problem that plagues a large proportion of citizens today and nurses are a professional group particularly subject to this disorder, due to the nature of their functions. Objective: To analyze the stress levels of nurses in the Emergency Service of a Hospital Center in the Northern Region of Portugal and its relationship with shift work. Material and Methods: Descriptive-correl...
O cuidado de enfermagem da pessoa em situação crítica: o stress, o trabalho por...
Almeida, José CarlosEnquadramento: Este relatório surge no âmbito do Mestrado em Enfermagem da Pessoa em Situação Crítica, pretendendo descrever as competências desenvolvidas na prestação de cuidados de enfermagem especializados à pessoa em situação crítica e família que vivencia processos complexos de doença e/ou falência orgânica, bem como na capacidade de resposta em situações de catástrofe e emergência multivítima, e no contro...
Valorização, conservação e restauro de retábulos do barroco português
Almeida, José Carlos; Fragata, Ana; Silva, Fátima MatosO termo “Retábulo” provém das palavras latinas retro (detrás) e tabula (tábua) e significa neste contexto, uma construção de madeira, elaborada com ornatos de motivos religiosos, que se eleva da parte posterior de um altar (mesa) de celebração. Os retábulos são bens integrados na arquitetura religiosa com uma função estética, catequética e didática. No período barroco (entre os finais do século XVI e meados do ...
Growth Performance, Carcass and Meat Traits of Autochthonous Arouquesa Weaners ...
Sacarrão-Birrento, Laura; Gomes, Maria José; Silva, Severiano R.; Silva, José A.; Moreira, Duarte; Vieira, Raquel; Ferreira, Luís Mendes; Pereira, PedroArouquesa is an autochthonous bovine breed known for its Arouquesa PDO beef labeling. There are several production systems under the definition of PDO labeling. This study aimed to compare the effect of different production systems on carcass and meat traits for the Arouquesa breed. Two trials differing in diet and weaning age were conducted. The first trial included a TF group fed the traditional way and weane...
Evaluating the environmental impact of two beef production systems using life c...
Belo, Sara; Dias, Ana Cláudia; Feliciano, Manuel; Sousa, Fernando Ruivo de; Almeida, José Carlos; Trindade, Henrique; Arroja, LuísBeef production has been identified as an important source of environmental impacts. Life Cycle Assessment (LCA) has been applied worldwide to identify key processes/phases for environmental improvement in beef production. In this study, LCA is used to assess the environmental impacts of beef produced in two different production systems, namely extensive and intensive fattening. A “cradle-to-gate” approach is a...
Evaluating the environmental impact of two beef production systems using life c...
Belo, Sara; Dias, Ana Cláudia; Feliciano, Manuel; Sousa, Fernando Ruivo de; Almeida, José Carlos; Trindade, Henrique; Arroja, LuísBeef production has been identified as an important source of environmental impacts. Life Cycle Assessment (LCA) has been applied worldwide to identify key processes/phases for environmental improvement in beef production. In this study, LCA is used to assess the environmental impacts of beef produced in two different production systems, namely extensive and intensive fattening. A “cradle-to-gate” approach is a...
A novel hybrid material with calcium and strontium release capability
Castro, António; Almeida, José Carlos; Salvado, Isabel Miranda; Margaça, Fernanda; Fernandes, Maria HelenaThe preparation of PDMS–TEOS–CaO hybrid materials by sol–gel techniques has been widely described in previous works. Calcium nitrate is the most common source of calcium used in these preparations. However, to remove possible toxic nitrate by-products a thermal treatment is necessary at temperatures above 500 1C, which leads to the degradation of the polymeric components of the hybrids. Strontium has already sh...
Anticipación de la estación reproductiva en ovejas de la raza Churra Galega Bra...
Fernandes, Mónica; Azevedo, Jorge Manuel Teixeira de; Mendonça, Álvaro; Almeida, José Carlos; Velasco, Helena; Fontes, Paulo J.; Maurício, RaimundoEste trabajo tuvo como principal objetivo evaluar la eficacia de la aplicación de dos tratamientos hormonales distintos en la anticipación de la estación reproductiva – progestágenos + eCG vs. melatonina + progestágenos + eCG –, en ovejas de la raza Churra Galega Bragançana. Adicionalmente, por primera vez en esta raza portuguesa, se valoró el uso de la técnica de inseminación artificial (IA) cervical en relaci...
Anticipación de la estación reproductiva en ovejas de la raza Churra Galega Bra...
Valentim, Ramiro; Fernandes, Mónica; Azevedo, Jorge; Mendonça, Álvaro; Almeida, José Carlos; Velasco, Helena; Simões, João; Fontes, PauloEste trabajo tuvo como principal objetivo evaluar la eficacia de la aplicación de dos tratamientos hormonales distintos en la anticipación de la estación reproductiva – progestágenos + eCG vs. melatonina + progestágenos + eCG –, en ovejas de la raza Churra Galega Bragançana. Adicionalmente, por primera vez en esta raza portuguesa, se valoró el uso de la técnica de inseminación artificial (IA) cervical en relaci...