Browsing by Author "Santos, J."
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- Assessment of nutritional and metabolic profiles of pea shoots: The new ready-to-eat baby-leaf vegetablePublication . Santos, J.; Herrero, M.; Mendiola, J. A.; Oliva-Teles, M. T.; Ibañez, E.; Delerue-Matos, Cristina; Oliveira, M. Beatriz P. P.Pea-shoots are a new option as ready-to-eat baby-leaf vegetable. However, data about the nutritional composition and the shelf-life stability of these leaves, especially their phytonutrient composition is scarce. In this work, the macronutrient, micronutrient and phytonutrients profile of minimally processed pea shoots were evaluated at the beginning and at the end of a 10-day storage period. Several physicochemical characteristics (color, pH, total soluble solids, and total titratable acidity) were also monitored. Standard AOAC methods were applied in the nutritional value evaluation, while chromatographic methods with UV–vis and mass detection were used to analyze free forms of vitamins (HPLC-DAD-ESI-MS/MS), carotenoids (HPLC-DAD-APCI-MSn) and flavonoid compounds (HPLC-DAD-ESI-MSn). Atomic absorption spectrometry (HR-CS-AAS) was employed to characterize the mineral content of the leaves. As expected, pea leaves had a high water (91.5%) and low fat (0.3%) and carbohydrate (1.9%) contents, being a good source of dietary fiber (2.1%). Pea shoots showed a high content of vitamins C, E and A, potassium and phosphorous compared to other ready-to-eat green leafy vegetables. The carotenoid profile revealed a high content of β-carotene and lutein, typical from green leafy vegetables. The leaves had a mean flavonoid content of 329 mg/100 g of fresh product, mainly composed by glycosylated quercetin and kaempferol derivatives. Pea shoots kept their fresh appearance during the storage being color maintained throughout the shelf-life. The nutritional composition was in general stable during storage, showing some significant (p < 0.05) variation in certain water-soluble vitamins.
- Cardiac risk factors and co-morbidities in mental ilnessPublication . Marques, António; Santos, J.; Queirós, C.Persons diagnosed with mental disease have usually inadequate lifestyle, especially sedentary life, lack of physical exercise, cardiac diseases, diets with sugar, lipids, coffee, and also tobacco or drugs abuse (Citrome & Yeomans, 2005; Chuang et al., 2008; Messias & Rondina, 2007). They have also high risk of mortality (Osborn et al., 2006).
- Da planificação à ação: uma experiência de sucesso no Mestrado de Higiene e SegurançaPublication . Dores, Artemisa Rocha; Fernandes, J.; Cavadas, I.; Filipe, J.; Santos, J.; Nunes, M.A unidade curricular de Educação e Gestão da Formação decorre no âmbito do 1º ano do mestrado de Educação e Gestão da Formação, da Escola Superior de Tecnologia da Saúde do Porto – P.PORTO. Alguns dos seus objetivos são: relacionar a saúde com diferentes contextos de desenvolvimento; refletir acerca da importância da educação em saúde, segurança e ambiente (ESSA); identificar eixos de atuação prioritária em matéria da educação para a segurança, demonstrar conhecimentos nas áreas de desenho/ implementação/avaliação de projetos de ESSA; desenvolver ações de formação/sensibilização nas áreas e aplicar competências pedagógicas.
- Fresh-cut aromatic herbs: Nutritional quality stability during shelf-lifePublication . Santos, J.; Herrero, M.; Mendiola, J. A.; Oliva-Teles, M. T.; Ibáñez, E.; Delerue-Matos, Cristina; Oliveira, M. Beatriz P. P.Fresh-cut vegetables are a successful convenient healthy food. Nowadays, the presence of new varieties of minimally processed vegetables in the market is common in response to the consumers demand for new flavours and high quality products. Within the most recent fresh-cut products are the aromatic herbs. In this work, the objective was to evaluate the nutritional quality and stability of four fresh-cut aromatic herbs. Several physicochemical quality characteristics (colour, pH, total soluble solids, and total titratable acidity) were monitored in fresh-cut chives, coriander, spearmint and parsley leaves, stored under refrigeration (3 ± 1 ºC) during 10 days. Their nutritional composition was determined, including mineral composition (phosphorous, potassium, sodium, calcium, magnesium, iron, zinc, manganese and copper) and fat- and water-soluble vitamin contents. Total soluble phenolics, flavonoids and the antioxidant capacity were determined by spectrophotometric methods. The aromatic herbs kept their fresh appearance during the storage, maintaining their colour throughout shelf-life. Their macronutrient composition and mineral content were stable during storage. Coriander had the highest mineral and fatsoluble vitamin content, while spearmint showed the best scores in the phenolic, flavonoid and antioxidant capacity assays. Vitamins and antioxidant capacity showed some variation during storage, with a differential behaviour of each compound according to the sample.
- Health care staff perception of noise in neonatal intensive care units: a questionnaire survey from NeoNoise ProjectPublication . Alberto Alves Carvalhais, Carlos; Santos, J.; Coelho, M.; Xavier, A.; Silva, M.A hospital Neonatal Intensive Care Unit (NICU) is designed to treat premature infants who need special care. These kind of units have become quite sophisticated, with a sort of medical devices that support an array of health care staff, such, physicians, nurses, health technicians, etc. (Konkani & Oakley, 2012). Noise in NICU is recognized as an agent with negative implications on health and well-being of premature infants (Nicolau, Casal, Lopes, & Kronenberg, 2005) and health professionals (Carvalhais, Santos, Vieira da Silva, & Xavier, 2015). Noise in NICU, and its effects on patients and staff, such as physiological and psychological disorders, has become an important issue, particularly because in these case patients are mainly premature infants. Noise as a stressor does not only put pressure on the workers and may result in a higher error occurrence, but also affect in a negative way, the healing process of patients (Siegmann & Notbohm, 2013). Figure 1, presents a general noise reaction scheme which can be used for hypothesis testing in noise epidemiology considering the cause-effect (Babisch, 2002).
- Indoor air quality in community health centers: a preliminary studyPublication . Santos, L.; Santos, J.; Rebelo, A.; Vieira Da Silva, ManuelaIndoor air quality (IAQ) in healthcare facilities is of great concern for both patients and staff. The aim of this study was to evaluate the IAQ in Community Health Centers. Total aerobic count and fungal load were assessed using a microbiological air sampler. The determination of the other parameters was per formed using real-time equipments. The average concentrations ranged between 161 CFU/m3 and 1423 CFU/m3 for fungi and between 147 CFU/m3 and 999 CFU/m3 for total aerobic count. Only three waiting rooms exceeded the concentration reference value for carbon dioxide. The concentration of particulate matter and carbon monoxide were above the limit value. In general, physical parameters are outside the comfort zones. These results demonstrate the need for on-going efforts to ensure adequate ventilation in Community Health Centers to maintain an acceptable IAQ. Therefore, it is essential to accomplish a long-term surveil lance of IAQ in this type of buildings
- Influence of physical condition in TGlittre performance in individuals with COPDPublication . Robalinho, L.; Santos, J.; Morais, L.; Abreu, P.; Mesquita Montes, António; Melo, CristinaChronic Obstructive Pulmonary Disease (COPD) is amulti-systemic disease with repercussions on the functional status of the individual with COPD. In order to assess the functional capacity in individuals with COPD and in particular to measure the results of pulmonary rehabilitation programs, the six minutes walking test (6MWT) has been a widely used test, but the walk reflects only a life daily activity (ADL). For a more representative assessment of functional status, based on a set of activities similar to ADL’s, such as walking, sit-to-stand, up and down stairs and moving objects with their upper limbs, it was developed the AVD Glittre test (TGlittre). Research proves that the TGlittre is a valid and reliable tool for measuring functional status in patients with COPD, with a strong correlation with the distance in 6MWT. However, the correlation with other components of physical condition, as the dynamic balance and strength of upper and lower limbs, is not yet described.
- LEAN and ergonomics: how to increase the productivity improving the wellbeing of the workers – a case studyPublication . Santos, J.; Silva, F. J. G.; Pinto, Gustavo Filipe; Baptista, AndresaThe principles of Lean manufacturing, in addition to addressing the reduction of waste throughout manufacturing processes, are also highly concerned about the conditions that can favor the productivity of operators, which is achieved through their well-being while performing tasks. This work was elaborated with a view to the analysis of a production line capable of producing different electronic devices and which presented deficiencies in terms of operator ergonomics, demanding undesired and exhausting efforts, having as aim the elimination of such conditions. Thus, a detailed study of the movements carried out by the operators along the assembly line was elaborated, and possible solutions were considered to eliminate the situations that were perceived as more tiring and capable of generating health problems for the operators, when repeated several times. The study was successfully developed, and solutions were found that completely eliminated actions that required exaggerated efforts or unnecessary movements, clearly optimizing the assembly flow and the well-being of the operators in the line.
- Motivations to participate in international trade fairs: the Portuguese experiencePublication . Santos, J.; Mendonça, P.Aims: This study explores the prime motives and barriers that drive or inhibit the Portuguese exporting Small and Medium Enterprises (SMEs) to exhibit at an international trade fair. Study design: Survey, based on a questionnaire sent by email. Place and Duration of Study: 68 Portuguese exporting SMEs, between January and July 2012. Methodology: The present study was conducted in Portugal and sought to examine the firm’s behavior regarding international trade fairs. In the preliminary stage of the research process an informal exploratory study was undertaken. Then, a survey based on a questionnaire sent by email collected the primary data used in the study. Results: The results indicate that a strong motive to exhibit at a trade fair is to reinforce the market presence of the firm, the possibility of finding new ideas and test new products, establish relationships with present and future customers, and enhance the brand image and reputation of the firm. The main barriers to non exhibitors firms were costs, bad previous experiences and lack of resources (financial, personnel and time). Conclusion: A strong motive to exhibit at a trade fair is the reinforcement of the exporter’s market presence, particularly in international markets where the comparative
- Multi-elemental analysis of ready-to-eat “baby leaf” vegetables using microwave digestion and high-resolution continuum source atomic absorption spectrometryPublication . Santos, J.; Oliva-Teles, M. T.; Delerue-Matos, Cristina; Oliveira, M. Beatriz P. P.The mineral content (phosphorous (P), potassium (K), sodium (Na), calcium (Ca), magnesium (Mg), iron (Fe), manganese (Mn), zinc (Zn) and copper (Cu)) of eight ready-to-eat baby leaf vegetables was determined. The samples were subjected to microwave-assisted digestion and the minerals were quantified by High-Resolution Continuum Source Atomic Absorption Spectrometry (HR-CS-AAS) with flame and electrothermal atomisation. The methods were optimised and validated producing low LOQs, good repeatability and linearity, and recoveries, ranging from 91% to 110% for the minerals analysed. Phosphorous was determined by a standard colorimetric method. The accuracy of the method was checked by analysing a certified reference material; results were in agreement with the quantified value. The samples had a high content of potassium and calcium, but the principal mineral was iron. The mineral content was stable during storage and baby leaf vegetables could represent a good source of minerals in a balanced diet. A linear discriminant analysis was performed to compare the mineral profile obtained and showed, as expected, that the mineral content was similar between samples from the same family. The Linear Discriminant Analysis was able to discriminate different samples based on their mineral profile.