Polytechnic Institute of Viana do Castelo

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    3348 research outputs found

    Assessing the impact of inaccurate insulin-to-carbohydrate ratio on the patient's glycemic targets and lifestyle management

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    To mitigate the adverse consequences of chronic hyperglycemia, patients with type 1 diabetes mellitus must provide their bodies with insulin to control their blood glucose. In most cases, insulin therapy consists of a combination of basal insulin and bolus insulin, the so-called basal-bolus insulin therapy. To determine the bolus insulin, patients must know not only the carbohydrate content of each meal but also the values of the insulin-to-carbohydrate ratio and the insulin sensitivity factor. Although important, the blood glucose complex dynamics make determining these parameters a difficult and error-prone task, usually performed by experienced diabetologists using high-quality data. Moreover, the insulin-to-carbohydrate ratio and the insulin sensitivity factor vary over the day due to several factors. Thus, daily, patients use approximate values to determine their prandial bolus. In this paper, we propose an analytic method to find the safe maximum interval for the error in the estimates of the insulin-to-carbohydrate ratio and, therefore, avoid dysglycemia. Our study suggests that slimmer patients with smaller insulin-to-carbohydrate ratios need to be more careful when estimating it. Another significant finding of our work is that in such cases, having small meals reduces the adverse effect of inaccurate insulin-to-carbohydrate ratio estimates in the postprandial blood glucose.911A-2C18-106F | Carlos Jorge Enes Capitão de AbreuN/

    Effects of bodyweight neuromuscular training with and without instability on balance control in active universitarians

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    The purpose of this study was to analyse the effects of a nine-week unstable vs stable bodyweight neuromuscular training programme on balance control. Seventy-seven physically active universitarians were randomly distributed into an unstable training group (UTG), a stable training group (STG), and a control group (CG). The intervention was conducted three times a week for nine weeks. Pre- and post-intervention assessments included static balance control under an unstable surface (eyes open (EOFS), eyes closed (ECFS), challenging visual-vestibular system (CVVS)), assessed as centre-of pressure fluctuations with a force plate. A mixed ANOVA was performed to test the within- and between-subjects factors. After the intervention, no significant differences were found between groups. All groups presented significant improvements in balance measurements in EOFS (p = 0.01), ECFS (p = 0.01; p = 0.02), and CVVS (p = 0.01) conditions. The training groups tended to have significantly better balance control (antero-posterior) than the CG on EOFS. In the CVVS condition, the UTG tended to have better balance control than the CG. There was no overall significant train ing advantage gained by using unstable or stable surfaces in terms of the improvement in static balance control in active universitar ians. Both training groups exhibited similar training adaptations.D915-7373-ED16 | Cesar LeaoN/

    Perception and knowledge of portuguese veterinarians about the zoonotic transmission of helicobacter pylori and helicobacter suis: the need for one health intervention

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    Helicobacter species can colonize the gastrointestinal tract of both humans and animals, and are associated with gastrointestinal and extra-gastrointestinal diseases. Some studies indicate that animals, health professionals, and people in close contact with animals might be at higher risk for infection with gastric Helicobacter spp. Considering that veterinarians are professionals at risk for infection with zoonotic gastric Helicobacters and are also seen by many as health communicators concerning zoonoses, the aim of this study was to evaluate the Portuguese veterinarians’ perception and knowledge of Helicobacter spp. infection and its zoonotic risk/potential. Therefore, a structured questionnaire composed of 34 dichotomic, multiple-choice, rating scale, matrix, drop-down, and open-ended questions was developed and given to Portuguese veterinarians via an online platform from May 2021 to July 2021, and statistical analysis was used to obtain results. There was a total of 149 respondents, most of them (73.8%) being females. Evidently, Portuguese veterinarians have a limited perception regarding Helicobacter spp. infections. Of the respondents that “have heard of Helicobacter”, 17.6% do not know which animal species can be affected by it. Most of the companion animal veterinarians (76.2%) do not consider Helicobacter spp. infection a differential diagnosis when evaluating animals with gastritis. A significant percentage (37.2%) of the respondents that have “heard of H. suis” do not consider it a zoonotic bacterium. There is a need for education and sensitization of veterinarians regarding the potential zoonotic risk of Helicobacter spp. in order to elucidate these professionals to this One Health issue, as the number of reports of non-Helicobacter pylori Helicobacter in livestock, companion, and wild animals is increasing.A91F-E8B8-FA62 | Teresa Susana Letra MateusN/

    um exemplo do voleibol

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    4811-99FE-2ECD | Luis Paulo Rodriguesinfo:eu-repo/semantics/publishedVersio

    Projecto Ancoragem: um programa inovador face ao abandono académico no Ensino Superior

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    O es deve promover resultados educativos múltiplos que permitam ao estudante finalizar a sua frequência com sucesso, reunindo competências e capacidades que o preparem para a participação social ativa. Uma questão tem vindo a ser alvo de atenção de investigadores e órgãos de gestão das ies – perda de estudantes. A literatura designa este fenómeno por drop-out e aponta para taxas elevadas no es com implicações para a trajetória desenvolvimental dos estudantes. Face às transformações profundas que o es português sofreu, o drop-out tem assumido contornos distintos, existindo indicadores relativos ao crescimento da perda de estudantes e do insucesso académico. Assim, desenvolveu-se o projecto ancoragem com os objetivos de caracterizar o drop-out; identificar o tipo e motivos de drop-out; e desenvolver medidas de ancoragem e de promoção do sucesso académico. O projecto encontra-se estruturado em três fases: sinalização dos drop-outs; caracterização e identificação dos motivos de drop-out; e desenho de medidas de ancoragem e promoção do sucesso académico. Os estudantes que abandonam são maioritariamente do género masculino, solteiros, do 1º ano, acederam ao es pelo regime geral e de cursos das engenharias/tecnologias, com idade média de 29 anos. Os principais tipos e motivos do abandono são o stop-out e o drop-out; condições pessoais e insatisfação com o curso/instituição respetivamente.E51F-89A1-B769 | Carla Fariainfo:eu-repo/semantics/publishedVersio

    Efeito da dieta sobre os resultados biométricos dos escaravelhos de Tenebrio molitor (Coleóptera, Tenebrionidae)

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    A91F-E8B8-FA62 | Teresa Susana Letra Mateusinfo:eu-repo/semantics/publishedVersio

    Awareness of listeriosis among portuguese pregnant women

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    In pregnant women listeriosis may cause abortion, foetal death or neonatal morbidity in the form of septicaemia and meningitis. Improved education concerning the disease, its transmission and prevention measures have been identified as a pressing need. The aim of this study was to evaluate the food safety knowledge and practices among pregnant women in Portugal, giving particular relevance to listeriosis. For this purpose, a written questionnaire was constructed and answered by 956 women. Half of the respondents considered they had received a sufficient amount of information on food safety during pregnancy. This information was mainly provided from their doctors, who were considered the most competent to give this information. Although 32.3% of women interviewed had not changed their habits of preparation and cooking foods after becoming pregnant, the greater the amount of information received the more effective the change of habits was. A significant number of women avoided the consumption of foods considered to be high risk, however, for 32.0% of these women these foods were only avoided in meals taken outside home. The amount of information received influenced the foods avoided. Only 12.2% of the women interviewed had heard about listeriosis and, 47.0% of these did not know about the problems it can cause. Women who have had three or more pregnancies were those that most frequently reported not having received information or having received little information. These women also demonstrated less knowledge about listeriosis. The larger number of pregnancies corresponded with less economic resources and less education of the respondents. Women showed plenty of interest in receiving information about listeriosis; doctors and written information in flyers or in the Pregnancy bulletin provided by the State Medical Service were the main sources of information referred. It appears that planning is required, to raise awareness amongst health professionals of the need for food safety education for pregnant women.A91F-E8B8-FA62 | Teresa Susana Letra MateusN/

    Mathematics outside the classroom: examples with pre-service teachers

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    The classroom is only one of the "homes" where education takes place. The use of non-formal teaching contexts, such as the surrounding environment, constitutes an educational context that can promote positive attitudes among students and an additional motivation for the study of mathematics. Teaching should be enriched with challenging tasks, aimed at developing cognitive abilities, such as problem posing and solving, and also encourage creative thinking. Thus, arise the trails, which consist of a sequence of tasks that the students have to solve, along a preplanned route. In this process, teacher education has a fundamental role, providing (future) teachers with the same experiences they are expected to offer their own students. The trails have great potential for all the students who experience them. Thus, we will discuss some of that potential developed in the context of pre-service teacher training.0D1E-4824-1244 | Ana Cristina Coelho Barbosainfo:eu-repo/semantics/publishedVersio

    The role of intangible factors in the intention of repeating a tourist destination

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    Little attention has been paid towards the intangible factors influencing tourism loyalty. Among these are usually the experiences during the stay, the engagement or the cultural identification with the destination. In this paper we explored the relationship of these underlying intangible factors with the intention to return to a destination. We used a sample of 958 tourists, who answered to a questionnaire applied in the city of Porto, Portugal. Results show that engagement and cultural identification with the destination are positively linked with the intention to return. We also observe a positive relationship between intention to return and specific tourist perceptions concerning the destination, namely social responsibility, available experiences and cultural heritage. Policy makers should focus on intangible factors in order to develop strategies to foster attractiveness and promote the uniqueness of tourist destinations. The central challenge to the sector’s stakeholders is related to the experiences and tourist engagement.B913-0565-0908 | Elvira VieiraN/

    Application of a costing methodology to estimate capital costs of solar thermal systems in residential portuguese context

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    The concerns regarding the environmental damage require changes not only on how the energy is consumed but also how it is produced. The close relationship between energy use and the economic growth exposes the need for continuous monitoring of energy consumption, which cannot be achieved without assessing capital and operational costs from its conversion to end-use. Solar thermal systems offer few advantages over other renewable resources to meet the energy demand in the small-scale building sector. Solar-thermal technologies can play a leading role in meeting the decarbonisation targets set in Europe. The reports from the International Energy Agency (IEA) show that solar heating has the potential to cover more than 16% of the lowtemperature heat use in the energy mix. In Europe, this share might translate into 45% growth of the installed solar thermal capacity by 2020, setting a challenging target of 1.3 m2 in terms of installed area of solar collectors by 2050. The main objective of the present work is to define a costing methodology able to estimate the capital cost of solar-thermal systems according to the system size and energy requirements of a specific residential building. The costing methodology consists of the derivation of a cost expression for each component by integrating thermodynamic and cost coefficients, adjusted for this kind of technology, and also taking into account real market data. The model was validated for a reference dwelling in Lisbon, with an occupation of 4 people with an estimated energy need of 2 037 kWh/year in terms of DHW. Results of the reference scenario show that is required at least 4 m2 of solar collector and the system cost ranges from 703.2 €/m2 to 763.2 €/m2, depending on the acceptable storage tank capacity. These values represent investments costs between 2 812.6 € and 3 052.8 €, which are in agreement with the data from the solar systems market since the prices of active systems start at 2 500 € for single dwelling buildings. In conclusion, the use of solar thermal systems enables the minimization of energy costs and, in some cases, the systems are capable of covering more than 40% of the total building energy load.9F18-6D02-26B9 | Ângela Maria Esteves da Silvainfo:eu-repo/semantics/publishedVersio

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