10 research outputs found

    Qualidade do fruto vs. qualidade do sorbet. Estudo do efeito do tempo e temperatura de conservação do sorbet

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    Mestrado em Engenharia Alimentar - Instituto Superior de AgronomiaThe aim of the present dissertation was study the fruits that are used to make sorbets and implication of these in sorbets quality as well as their evolution during storage. For this, the fruits chosen were orange, lemon, mandarin, strawberry, melon and mango, each represented by two different cultivar or origin, which were characterized according to physical, chemical and sensorial parameters in order to determine which variety/origin produce the best quality sorbets. The sorbets obtained from each of the raw materials were stored for 21 days at three different temperatures (-18, -15 and -12 ºC), proceeding to evaluation of their physical, chemical and sensory characteristics on days 1, 7, 14 and 21 of storage. It was concluded that was not the temperature, but the time of storage that causes further changes. Besides that, there was a loss of phenolic compounds of fruit when processing fruit into sorbets. It was also noticed that during the storage the content of phenolic compounds and antioxidant activity significantly decreased while pH and colour showed no significant variations. Also, the fruits varieties chosen produced different sorbets and different sensory assessments

    Investigação do efeito de sincronia: a relação entre cronótipo e horários de desempenho cognitivo da criança portuguesa.

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    estudo da relação entre horários de tarefas e a variabilidade de resultados de desempenho (Schumacher, Miller, Watamura et al., 2017; Menna-Barreto & Wey, 2007; Werner, LeBourgeois, Geiger et al.,2009). - estudo do cronótipo como variável moderadora do desempenho (académico ou profissional) - estudos precedentes e fundamentados exclusivamente na fisiologia (Adan, Archer, Hidalgo et al., 2012; Halberg, 1959; Preckel, Lipnevich, Schneider et al., 2011; Reinberg, 1999). - estudo da matutinidade e vespertinidade - acrofases e flutuação cognitiva (Menna-Barreto & Wey, 2007; Walker, Kribs, Christopher et al., 2014; Werner et al., 2009) - estudo do efeito de sincronia

    The effect of fruit cultivar/origin and storage time on sorbets quality

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    Fruit quality is one of the main factors that influence the sorbets’ quality. The aim of this study was to evaluate the effects of two different cultivars of five fruits (mandarin, lemon, melon and mango) or origin (strawberries) on the overall quality of sorbets, right after being produced and after being preserved for 21 days at 18 C. Total soluble solids (TSS), titratable acidity (TA) and firmness were used to characterize the fruits. Colour, pH, antioxidant capacity (AC) and total phenolic content (TPC), as well as sensory attributes, were evaluated on fruits and respective sorbets. Fruit processing led to a loss of TPC and AC. Nevertheless, no significant changes were observed on sorbets over storage time. In spite of chemical, physical and sensorial differences registered among fruits from different cultivars or origin, the sensory profiles of sorbets from the same pair of studied fruits are very similar. Multivariate analysis clearly shows that the sorbets produced maintain the same sensorial quality regardless of the cultivar or the origin of the fruitsinfo:eu-repo/semantics/publishedVersio

    MAMMALS IN PORTUGAL : A data set of terrestrial, volant, and marine mammal occurrences in P ortugal

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    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 information on their distribution is cru-cial to delineate and support conservation actions. MAMMALS INPORTUGAL is a publicly available data set compiling unpublishedgeoreferenced occurrence records of 92 terrestrial, volant, and marine mam-mals in mainland Portugal and archipelagos of the Azores and Madeira thatincludes 105,026 data entries between 1873 and 2021 (72% of the data occur-ring in 2000 and 2021). The methods used to collect the data were: live obser-vations/captures (43%), sign surveys (35%), camera trapping (16%),bioacoustics surveys (4%) and radiotracking, and inquiries that represent lessthan 1% of the records. The data set includes 13 types of records: (1) burrowsjsoil moundsjtunnel, (2) capture, (3) colony, (4) dead animaljhairjskullsjjaws, (5) genetic confirmation, (6) inquiries, (7) observation of live animal (8),observation in shelters, (9) photo trappingjvideo, (10) predators dietjpelletsjpine cones/nuts, (11) scatjtrackjditch, (12) telemetry and (13) vocalizationjecholocation. The spatial uncertainty of most records ranges between 0 and100 m (76%). Rodentia (n=31,573) has the highest number of records followedby Chiroptera (n=18,857), Carnivora (n=18,594), Lagomorpha (n=17,496),Cetartiodactyla (n=11,568) and Eulipotyphla (n=7008). The data setincludes records of species classified by the IUCN as threatened(e.g.,Oryctolagus cuniculus[n=12,159],Monachus monachus[n=1,512],andLynx pardinus[n=197]). We believe that this data set may stimulate thepublication of other European countries data sets that would certainly contrib-ute to ecology and conservation-related research, and therefore assisting onthe development of more accurate and tailored conservation managementstrategies for each species. There are no copyright restrictions; please cite thisdata paper when the data are used in publications.info:eu-repo/semantics/publishedVersio

    Mammals in Portugal: a data set of terrestrial, volant, and marine mammal occurrences in Portugal

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    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 mammals, and pollution, open net fishing, climate change, and prey depletion for marine mammals. Mammals play a key role in maintaining ecosystems functionality and resilience, and therefore information on their distribution is crucial to delineate and support conservation actions. MAMMALS IN PORTUGAL is a publicly available data set compiling unpublished georeferenced occurrence records of 92 terrestrial, volant, and marine mammals in mainland Portugal and archipelagos of the Azores and Madeira that includes 105,026 data entries between 1873 and 2021 (72% of the data occurring in 2000 and 2021). The methods used to collect the data were: live observations/captures (43%), sign surveys (35%), camera trapping (16%), bioacoustics surveys (4%) and radiotracking, and inquiries that represent less than 1% of the records. The data set includes 13 types of records: (1) burrows | soil mounds | tunnel, (2) capture, (3) colony, (4) dead animal | hair | skulls | jaws, (5) genetic confirmation, (6) inquiries, (7) observation of live animal (8), observation in shelters, (9) photo trapping | video, (10) predators diet | pellets | pine cones/nuts, (11) scat | track | ditch, (12) telemetry and (13) vocalization | echolocation. The spatial uncertainty of most records ranges between 0 and 100 m (76%). Rodentia (n =31,573) has the highest number of records followed by Chiroptera (n = 18,857), Carnivora (n = 18,594), Lagomorpha (n = 17,496), Cetartiodactyla (n = 11,568) and Eulipotyphla (n = 7008). The data set includes records of species classified by the IUCN as threatened (e.g., Oryctolagus cuniculus [n = 12,159], Monachus monachus [n = 1,512], and Lynx pardinus [n = 197]). We believe that this data set may stimulate the publication of other European countries data sets that would certainly contribute to ecology and conservation-related research, and therefore assisting on the development of more accurate and tailored conservation management strategies for each species. There are no copyright restrictions; please cite this data paper when the data are used in publications

    A relação entre cronótipo e horários de desempenho cognitivo da criança portuguesa

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    O aprofundamento do conhecimento sobre as consequências das rotinas de sono no quotidiano das crianças, principalmente a nível escolar, terá outputs não apenas quanto à estruturação das aprendizagens ao longo do dia (com efeito positivo nos resultados académicos e, consequentemente, na autoestima e no sentido de competência das crianças), mas também a nível da promoção da saúde. O presente estudo visa analisar o comportamento de rotina do sono/vigília de crianças em idade escolar com o objetivo de examinar a relação entre o cronótipo e a flutuação da atenção nas mesmas tarefas administradas em diferentes períodos do dia. Neste estudo transversal encontra-se em aplicação um conjunto de provas específicas de atenção a crianças portuguesas do 1.º Ciclo e com idades compreendidas entre os sete e os dez anos. Após aplicação do Questionário do Cronótipo, a amostra foi dividida de acordo com duas categorias de cronótipo - matutino e vespertino - para avaliar o efeito de sincronia (interação entre o cronótipo e a hora do dia em que se observa o desempenho). São esperados resultados que confirmem o efeito de sincronia, ou seja, a relação positiva entre o tipo matutino e o desempenho otimizado em tarefas administradas no período da manhã por contraste com o período da tarde.Por um lado, os dados permitirão auxiliar as famílias e crianças a desenvolver e manter hábitos mais saudáveis no que diz respeito ao sono. Por outro lado, orientar profissionais da Educação no que respeita à adequação de horários escolares para específicas tarefas e desenvolvimento de competências.The deepening of knowledge about the consequences of sleep routines in children's daily life, especially at school level, will have outputs not only in structuring learning throughout the day (with a positive effect on academic results and consequently on selfesteem and sense children's competence), but also in terms of health promotion. The present study aims to analyze the routine sleep/wake behavior of school-age children, with the objective of examining the relationship between chronotype and attention fluctuation in the same tasks administered at different times of the day. In this cross-sectional study, a set of specific tests of care for Portuguese children of the 1st Cycle and between the ages of seven and ten are in use. After the Chronotype Questionnaire was applied, the sample was divided according to two categories of chronotype - morning and evening - to evaluate the effect of synchrony (interaction between the chronotype and the time of day in which performanceis observed). Results are expected to confirm the synchrony effect, ie, the positive relationship between the morning type and the optimized performance in tasks administered in the morning in contrast to the afternoon period. On the one hand, the data will help families and children develop and maintain healthier sleep habits. On the other hand, to guide education professionals regarding the adequacy of school schedules for specific tasks andskills development

    HIPTCN: Estudo Prospetivo Observacional de Doentes Traumatizados Cranioencefálicos Hipocoagulados com Tomografia Computorizada Inicial Normal

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    Introduction: Our national protocol for traumatic brain injury dictates that hypocoagulated patients with mild trauma and initial tomography scan with no intracranial traumatic changes must be hospitalized for 24 hours and do a post-surveillance tomography scan. The main goal of this study was to evaluate the clinical relevance of these measures. Material and methods: A prospective observational study was undertaken in four hospitals. Adult hypocoagulated traumatic brain injury patients with a normal tomography scan were included. The main outcomes evaluated were rate of delayed intracranial hemorrhage, rate of admission in a neurosurgical department, rate of complications related with surveillance and rate of prolonged hospitalization due to complications. An analysis combining data from a previously published report was also done. Results: A total of 178 patients were included. Four patients (2.3%) had a delayed hemorrhage and three (1.7%) were hospitalized in a neurosurgery ward. No cases of symptomatic hemorrhage were identified. No surgery was needed, and all patients had their anticoagulation stopped. Complications during surveillance were reported in seven patients (3.9%), of which two required prolonged hospitalization. Discussion: The rate of complications related with surveillance was higher than the rate of delayed hemorrhages. The initial period of in-hospital surveillance did not convey any advantage since the management of patients was never dictated by neurological changes. Post-surveillance tomography played a role in deciding about anticoagulation suspension and prolongation of hospitalization. Conclusion: Delayed hemorrhage is a rare event and the need for surgery even rarer. The need for in-hospital surveillance should be reassessed.Introdução: O nosso protocolo nacional para traumatismos cranioencefálicos recomenda que doentes hipocoagulados com trauma craniano ligeiro e tomografia inicial sem alterações traumáticas intracranianas sejam hospitalizados 24 horas e façam uma tomografia computorizada pós-vigilância. O principal objetivo deste estudo foi avaliar a relevância clínica dessas medidas. Material e Métodos: Foi realizado em quatro hospitais um estudo prospetivo e observacional. Foram incluídos adultos hipocoagulados com trauma craniano e tomografia normal. Os principais outcomes avaliados foram: taxa de hemorragia intracraniana tardia, taxa de internamento numa enfermaria de neurocirurgia, taxa de complicações relacionadas com a vigilância e taxa de hospitalização prolongada por complicações. Resultados: Foram incluídos um total de 178 doentes. Quatro doentes (2,3%) apresentaram hemorragia tardia e três (1,7%) foram mantidos hospitalizados numa enfermaria de Neurocirurgia. Não foram documentados casos de hemorragia tardia sintomática. Nenhuma cirurgia foi necessária e em todos estes doentes a anticoagulação foi interrompida. Durante a vigilância, foram relatadas complicações em sete doentes (3,9%), dos quais dois exigiram hospitalização prolongada. Discussão: A taxa de complicações relacionadas com a vigilância foi maior do que a taxa de hemorragia tardia. O período inicial de vigilância intra-hospitalar não trouxe qualquer vantagem, já que o manejo dos doentes nunca foi ditado por alterações neurológicas. A tomografia pós-vigilância desempenhou um papel importante na decisão sobre a suspensão da anticoagulação e o prolongamento da hospitalização. Conclusão: A hemorragia tardia é um evento raro e a necessidade de cirurgia ainda mais. Deve ser reavaliada a necessidade de vigilância intra-hospitalar.info:eu-repo/semantics/publishedVersio
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