Browsing by Issue Date, starting with "2019"
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- Oliveira, Miguel dePublication . Pinto, Sérgio Ribeiro
- Psychological distress on nurses: The role of personal and professional characteristicsPublication . Simães, Clara; Gomes, A. RuiThis study explored the role of nurses' personal and professional characteristics on the expression of psychological distress, overcoming the limi-tations of studying humans' responses to work environments using the stress-strain approach. The sample consisted of 2203 registered nurses working in Portugal. The investigation protocol included a Sociodemographic and Profes-sional Questionnaire and the Portuguese version of the General Health Ques-tionnaire-12. A high percentage of nurses (79.3%) showed levels of psycholog-ical distress, deserving for clinical attention. Significant differences were found between nurses with and without clinical symptoms of psychological distress. Female nurses, those working in primary health care, and nurses with no hobby and no physical exercise behaviors, presented significant levels of distress, de-serving for clinical attention. These nurses reported high levels of anxie-ty/depression and social dysfunction. More, the absence of a hobby and the lack of physical exercise behaviors constituted as risk factors for the experience of clinical symptoms of distress, anxiety/depression and social dysfunction. These findings represent an important issue in occupational stress research, suggesting that leisure activities may be a protective factor for nurses’ mental health, acting as a “Daily Uplifts” for the stress recovery balance. Thus, in order to ensure the patients’ safety and the quality of health care, health organizations must consid-er nurses’ personal and professional characteristics that influence their mental health and global functioning when developing occupational health programs.
- A cross-cultural perspective on feeling good in the context of foods and beveragesPublication . Sulmont-Rossé, Claire; Drabek, Rafal; Almli, Valérie L; van Zyl, Hannelize; Silva, Ana Patricia; Kern, Martin; McEwan, Jean A.; Ares, GastónThe aim of the present research was to explore consumers' conceptualization of feeling good in relation to food and beverages from a cross-cultural perspective. Participants from 14 countries across 5 continents and covering 10 languages (N = 8325) responded to an online survey including word association and free listing tasks related to feeling good in the context of food and beverages. Results were analyzed using inductive coding: a list of main codes was generated in English for each of the tasks, after which native speakers for each language coded the responses. Codes were grouped into categories reflecting common themes from which eight dimensions were identified. Results showed that in the context of foods and beverages, feeling good was mainly associated with specific foods and sensory and hedonic properties. Across the 14 countries, ‘Sweet and fat food’, ‘Fruit and vegetables’, and ‘Protein food’ were the three food categories most associated with feeling good. Emotional aspects of food consumption (‘Taste good’ and emotions) were also relevant. Health and nutrition-related aspects were more relevant for consumers when they were asked to think about how foods and beverages would make them feel good in the future. In other words, food-related feeling good seems to be mainly driven by sensory pleasure at present, but it is also related to nutrition and health in the future. Differences in the strength of the associations between feeling good and the identified categories were found between countries, in line with the existence of cultural differences in food habits, as well as in the importance people attach to the characteristics of foods and beverages. Results from the present work provide insights on the impact of eating and drinking on feeling good in terms of emotional, physical and social aspects, and increase knowledge about the way food and drink can contribute to general well-being
- A sequential injection fluorimetric methodology with in-line solid phase extraction for biogenic amines screening in waterPublication . Ribas, Tânia C. F.; Tóth, Ildikó V.; Rangel, António O. S. S.A method for the screening of biogenic amines in waters, whose presence at some concentration levels potentially cause adverse effects on humans, was developed for the first time. A suitable and easy to operate system, with low reagent consumption was devised. The proposed flow-based system was divided into two analytical parts, preconcentration and derivatization of the biogenic amines. Solid phase extraction, using a Chelex 100 resin, was the newly chosen strategy for preconcentration of the analyte and also removal of possible matrix interferences. Fluorescamine was used as derivatization reagent for biogenic amines followed by fluorimetric detection. The influence of different sorbent materials for preconcentration and flow system parameters such as pH of standards and buffer, composition of the eluent solution, flow-rates, standard/sample volume, were studied. The interference of ammonia was assessed, and no interference was observed. The limits of detection and quantification were 1.7 and 5.6 µmol L−1, respectively. The developed system was applied to water samples and the recovery results were 98 ± 7%.
- Dalila, um sopro de mistério ou poesiaPublication . Pereira, Henrique Manuel
- Who is Ella?Publication . Anzini, Patrícia
- O (primeiro) Dia Mundial da Segurança Alimentar é 7 de junho de 2019Publication . Teixeira, Paula
- Microinmuno fluorescencia para el diagnóstico de enfermedades infecciosasPublication . Pérez, Rodríguez; Mireya, Abreu; Mazzali, WaardLa infección por Chlamydia pneumoniae se produce en todo el mundo, lo que da como resultado una prevalencia del 40-90% de anticuerpos séricos contra la especie en diversas poblaciones. La serología es la herramienta de diagnóstico más utilizada para la detección de infecciones respiratorias por clamidia en la práctica clínica habitual. El principal problema de este estudio es la validez de las pruebas utilizadas, especialmente el nuevo rDNA LPS ELISA.
- The effect of dissociating agents on the dispersion of a grated cheese: conclusions for its structure-holding interactionsPublication . Ferreira, João Paulo; Vilela, Tatiana Paula; Gomes, Ana Maria
- Sargassum muticum and Osmundea pinnatifida enzymatic extracts: chemical, structural, and cytotoxic characterizationPublication . Rodrigues, Dina; Costa-Pinto, Ana R.; Sousa, Sérgio; Vasconcelos, Marta W.; Pintado, Manuela M.; Pereira, Leonel; Rocha-Santos, Teresa A. P.; Costa, João P. da; Silva, Artur M. S.; Duarte, Armando C.; Gomes, Ana M. P.; Freitas, Ana C.Seaweeds, which have been widely used for human consumption, are considered a potential source of biological compounds, where enzyme-assisted extraction can be an efficient method to obtain multifunctional extracts. Chemical characterization of Sargassum muticum and Osmundea pinnatifida extracts obtained by Alcalase and Viscozyme assisted extraction, respectively, showed an increment of macro/micro elements in comparison to the corresponding dry seaweeds, while the ratio of Na/K decreased in both extracts. Galactose, mannose, xylose, fucose, and glucuronic acid were the main monosaccharides (3.2–27.3 mg/glyophilized extract) present in variable molar ratios, whereas low free amino acids content and diversity (1.4–2.7 g/100gprotein) characterized both extracts. FTIR-ATR and 1H NMR spectra confirmed the presence of important polysaccharide structures in the extracts, namely fucoidans from S. muticum or agarans as sulfated polysaccharides from O. pinnatifida. No cytotoxicity against normal mammalian cells was observed from 0 to 4 mglyophilized extract/mL for both extracts. The comprehensive characterization of the composition and safety of these two extracts fulfils an important step towards their authorized application for nutritional and/or nutraceutical purposes.