Browsing by Author "Ferreira, Joana"
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- Assessment of hygienic quality of surfaces and food handlers in Portuguese school canteensPublication . Ferreira, Joana; Rebelo, Andreia; Santos, Joana; Vieira da Silva, ManuelaThe incidence of food borne outbreaks in school canteens represents a major problem for society, since they serve a youthful population who are particularly susceptible to health risks. According to the World Health Organization (2003), 31% of the reported outbreaks between 1999 and 2000 in Portugal, were originated in schools and kindergartens, which demonstrate the importance of such establishments in the transmission of food borne diseases. Food handlers have a major role in the prevention of these diseases, mainly during the production and distribution of food since they may cross-contaminate raw and processed foodstuffs.
- Biological activity of ionic liquids based on bis-pyridinium in Gram-positive and Gram- negative bacteriaPublication . Ferreira, Joana; Ferraz, Ricardo; Vieira, Mónica; Fernandes, Rúben; Branco, Luís C.; Noronha, João Paulo; Petrovski, eljko; Prudêncio, CristinaResistance to antibiotics is becoming a public health problem and is the subject of concern from various global entities. In this context, finding new alternatives to combat microbial infections is critical. Ionic liquids (ILs) come up as a resource to be used in the pharmaceutical industry, especially in the synthesis of new antibiotics. The ILs have shown the ability to improve the characteristics of active pharmaceutical ingredients. However this is not the only the relevance of these compounds, antimicrobial properties also have been described. The bis-pyridinium ILs are now being studied as antimicrobial agents in the present study.
- A digital communication system for occupational safety and health: requirements identification and prototypePublication . Ferreira, Joana; Barros, Mariana; Constantino, Gonçalo; Cavadas, Rodrigo; Rebelo, José; Oliveira, Bruno; Rodrigues, MatildeShifting the communication process in the Occupational Safety and Health (OSH) field to digital can bring advantages to risk management. A digital communication system can help ensure that all workers find it easier to report hazards, accidents, and near misses. Additionally, it can make possible access to several prevention information. Since companies typically lack this type of solution, this work aimed to identify the requirements of an OSH communication system and propose a prototype. To this end, a company in the construction and maintenance sector was used as a case study. Information was collected through visits to a construction site, interviews with the workers and a focus group session. The results showed the company's interest in modernizing communication methods and dematerializing the accidents and near misses reporting. The system can be used to improve information management and maintenance activities. As a result, a prototype for a digital communication system was proposed, contributing to simplifying processes for all end users. However, it must be safeguarded, that the prototype describes preliminary results for the system to be developed. Further studies are ongoing to obtain the final solution.
- Efeito de uma intervenção em crianças com hemiparésia espástica ao nível dos ajustes posturais anticipatórios no início da marchaPublication . Ferreira, Joana; Moreira, AnaObjectivos: Verificar o efeito de uma intervenção baseada na abordagem segundo o Conceito de Bobath nos Ajustes Posturais Anticipatórios no Início da Marcha em duas crianças com hemiparésia espástica. Pretendeu-se ainda, verificar o efeito desta abordagem nas actividades e participação, bem como comparar os aspectos individuais das duas crianças com a capacidade de mudança após a intervenção. Metodologia: A avaliação foi realizada antes e três meses após a intervenção através da Electromiografia, da Plataforma de Forças, de um sistema de Câmaras de Vídeo, de uma Máquina Fotográfica e da Classificação Internacional de Funcionalidade para Crianças e Jovens. Resultados: A sequência de activação muscular alterou-se apenas na criança A. A postura na posição de pé, a actividade muscular, o deslocamento do centro de pressão e as actividades e participação modificaram-se em ambas as crianças, sendo que a criança A apresentou maior capacidade de mudança. Conclusão: A intervenção com base numa abordagem segundo o conceito de Bobath induziu mudanças positivas nos Ajustes Posturais Anticipatórios e nas actividades e participação dos casos em estudo.