893 resultados para Isabel, Queen, consort of Denis, King of Portugal, 1271-1336


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The +Contigo Project is a longitudinal research project based on a multilevel network intervention aimed at promoting mental health and well-being and preventing suicidal behaviors. Students participate in social skills training sessions on the stigma of mental disorders, adolescence, self-esteem, problem-solving skills, and wellbeing. Problem statement: To identify the qualitative impact of the +Contigo Project. Objectives: To identify the importance of the project for students, the problem situations which it helped to solve, and its impact on an individual level. Research methods: Content analysis (Bardin, 2009) with a posteriori categorical identification. Semi-structured interview guide with 5 questions. A convenience sample of 16 students, from three schools of one school cluster in the Center Region of Portugal, was used. The ethical aspects of parental consent, voluntary participation and data confidentiality were addressed. Findings: Fourteen categories emerged from the data analysis. The answers to Question 4 'How was this project important to you?' were particularly relevant. Students mentioned that it improved their self-esteem by increasing self-confidence and interpersonal skills, and that it increased their reflection and awareness on problems with which they learned how to cope during the sessions. Conclusions: All interviewees considered that the +Contigo project helped them to solve problems, improve their interpersonal skills and cope with the adolescence period. Students improved their self-esteem and self-knowledge, and were able to apply what they had learned in the sessions in their daily lives. We concluded that the project had a positive impact on the students' mental health.

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Background The quest for continuous improvement of the quality of provided care is the objective of nursing care. However, the insertion and permanence of a peripheral venous catheter has been associated to complications, thus making a systematic evaluation of the performance of professionals and the management of health services important. Objective: Analyse complications that caused removal of intravenous catheters. Methods A prospective study with 64 patients of a health service of Portugal, from July to September/2015. Included patients with age 18 years, with a peripheral venous catheter. Descriptive analysis using SPSS. Ethical requirements were met. Results Two hundred three (203) intravenous catheters, in 64 patients, most elderly (section 95.3 %), with mean age of 80 years were evaluated. The catheters remained inserted between one and 12 days (mean 2 days), 66 % of the devices were removed because of complications, such as: removal by the patient (17.7 %), obstruction (17.2 %), infiltration (14.8 %), phlebitis (9.4 %) and fluid exiting the insertion site (6.4 %). The prevalence of obstruction and infiltration per patient was respectively 36 % and 39 %. Conclusions Obstruction and infiltration were the complications of higher prevalence that led to the removal and reinsertion of a new peripheral venous catheter with the possibility of increased pain, infection and hospital costs. Faced with the risk of compromising patient safety and being able to contribute to the improvement of health care, we suggest the inclusion of obstruction and infiltration in the indicators of quality of care, in order to have systematic evaluation of results, (re)plan and implement preventive measures.

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In NW of Portugal, the region between Esposende and Vila do Conde was established into a unique system called masseiras; masseiras are small fields that were created at the beginning of XX century by removing sand from dunes. Since the 80’s sand between closed masseiras has been removed giving way for larger fields, the “enlarged masseira with greenhouses”. This region is part of vulnerable zone nº1 (VZ1). Nowadays, the masseiras have almost disappeared; they had been replaced by “enlarged masseiras with plastic greenhouses” exploited by a new generation of growers. As water quality is an indicator of agriculture practices, 8 wells were selected and water samples were collected on four dates from September 2009 to May 2010. Laboratorial analysis was performed on nitrates and 28 pesticides. The results confirm that water in VZ1 is contaminated with nitrates (as it was expected) and also with pesticides. The water was contaminated in both dug wells and drilled wells all year round. Masseiras’ wells have more nitrates than greenhouses’ wells, probably due to poor agricultural practices used by growers who still employ high quantities of fertilizers and water. Pesticides detected in water samples include some that have been sprayed in the field and others that have not. Some forbidden substances were found. Our results confirm that, in VZ1, there is a diffusion contamination, which origin is unknown. In this communication, we put in picture the history of masseiras fields: how masseiras fields have been created and how they have disappeared; what trends exist in pest management strategies and the use of fertilizers, pesticides and water resources. These results reinforce the need to change the agricultural system in this region of traditional vegetable production.

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A multi-residue gas chromatography-mass spectrometry method was developed in order to evaluate the presence of 39 pesticides of different chemical families (organophosphorus, triazines, imidazole, organochlorine), as well as some of their transformation products, in surface water samples from Ria de Aveiro. Ria de Aveiro is an estuarine coastal lagoon, located in the northern west region of Portugal, which receives inputs from agriculture, urban and industrial activities. The analytical method was developed and validated according international guidelines and showed good linearity, with correlation coefficients higher than 0.9949 for all compounds, adequate precision and accuracy, and high sensitivity. Pesticides were chosen from the priority pollutants list of the Directive 2008/105/EC of the European Parliament and of the Council (on environmental quality standards in the field of water policy), or were selected due their common use in agricultural practices. Some of these 39 pesticides are, or are suspected to be, endocrine disruptor compounds (EDCs), being capable of altering the endocrine system of wildlife and humans, causing form malfunction and ultimately health problems. Even those pesticides which are not EDCs, are known to be awfully toxic and have a recognised impact in human health. The aquatic environment is particularly susceptible to pollution due to intentional and accidental release of chemicals to water [3]. Pesticide contamination of surface water is a national issue as it is often used as drinking water. This concern is especially important in rural agricultural areas where population uses small private water supplies, regularly without any laboratory surveillance. The study was performed in seven sampling points and the results showed a considerable concern pesticide contamination of all samples.

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In recent years, we have seen an improvement of existing facilities in dwellings in Portugal. Within the heat pumps systems, there is a special type known as direct expansion heat pump assisted by Solar Collector (DX-SAHP). It was calculate the SPF indicator for 30 regions of Portugal. It was analyses the potential of reductions of CO2 and primary energy use for the retrofitting of DHW preparation systems. It was found that the performances of this type of equipment are benefiting from the Portuguese climate conditions, especially in the South and in the Autonomous Regions. Best SPF was obtained for Beja. It was found in all regions of the high potential for reducing CO2 emissions and verifying a potential significant reduction of primary energy consumption.

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Como consequência das invasões francesas a Portugal, dá-se a partida da corte portuguesa para o Brasil e o consequente desenvolvimento daquela colónia. Esse crescimento tornou-a num destino de eleição para a emigração portuguesa e levou a que, após o regresso do rei a Portugal, o Brasil se tornasse num país independente. O recémcriado império brasileiro manteve-se atrativo para milhares de portugueses, muito dos quais regressavam posteriormente à terra natal com uma favorável situação económica. Nessas circunstâncias, estava Manoel Pinto quando retornou a Portugal e constituiu família em Castelo de Paiva. Porém o imprevisto fez dele um foragido levando-o de novo a terras brasileiras, onde um novo acontecimento deu um rumo improvável à situação e ao desfecho que lhe seguiu.

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Cambisols are the major soil type in Portugal. The yield of annual crops in these soils is generally poor, and the situation is aggravated in wet winters. In the south of Portugal, manganese toxicity has been identified as the major cause of poor growth and leaching as the main reason for the negative effect of rainfall observed in Cambisols derived from granite Manganese toxicity also appears to be present in the Cambisols in other regions of Portugal. Manganese toxicity is cross-related to the magnesium concentration, either in the soil solution or in plant shoots. Therefore soil amendment using dolomitic limestone is needed to overcome the problem. Current soil test methods are unable to predict the level of Mn toxicity. However, new approach using the extraction of soil solution is proposed, although further work is needed to fully implement the method.

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Earthen building materials bear interesting environmental advantages and are the most appropriate to conserve historical earth constructions. To improve mechanical properties, these materials are often stabilized with cement or lime, but the impact of the stabilizers on the water transport properties, which are also critical, has been very rarely evaluated. We have tested four earth-based repair mortars applied on three distinct and representative rammed earth surfaces. Three mortars are based on earth collected from rammed earth buildings in south of Portugal and the fourth mortar is based on a commercial clayish earth. The main objective of the work was over the commercial earth mortar, applied stabilized and not stabilized on the three rammed earth surfaces to repair, to assess the influence of the stabilizers. The other three earth mortars (not stabilized) were applied on each type of rammed earth, representing the repair only made with local materials. The four unstabilized earth materials depicted nonlinear dependence on t1/2 during capillary suction. This behaviour was probably due to clay swelling. Stabilization with any of the four tested binders enabled the linear dependence of t1/2 expected from Washburn's equation, probably because the swelling did not take place in this case. However, the stabilizers also increased significantly the capillary suction and the capillary porosity of the materials. This means that, in addition to increasing the carbon footprint, stabilizers like cement and lime have functional disadvantages that discourage its use in repair mortars for raw earth construction.

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CIEO-Research Centre for Spatial and Organizational Dynamics, University of Algarve

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Phosphorus, as phosphate, is frequently found as a constituent of many of the world iron resources. Phosphorus is an extremely harmful element found in iron ore used as a raw material in the steelmaking process because it will affect the quality of iron and steel products. Allowable phosphorus concentration in high quality steel is usually less than 0.08%. Dephosphorization of iron ore has been studied for a long time. Although there are described physical beneficiation and chemical leaching processes, involving inorganic acids, to reduce phosphorus content of iron ores, these processes have several limitations such as poor recovery, require high energy quantity, capital costs and cause environmental pollution. Use of microorganisms in leaching of mineral ores is gaining importance due to the implementation of stricter environmental rules. Microbes convert metal compounds into their water soluble forms and are biocatalysts of leaching processes. Biotechnology is considered as an eco-friendly, promising, and revolutionary solution to these problems. Microorganisms play a critical role in natural phosphorus cycle and the process of phosphate solubilization by microorganisms has been known for many years. This study was performed to analyze the possibility of using bioleaching as a process for the dephosphorization of an iron ore from Northeast of Portugal. For bioleaching, Acidithiobacillus ferrooxidans bacterium were used. For this study two experiments were done with different conditions, which lasts 6 weeks for first experiment and 5 weeks for second experiment. From the result of these preliminary studies, it was observed that for first experiment 6.2 % and for second experiment 3.7 % of phosphorus was removed from iron ore.

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The hospitalizatíon of a child carnes with it major changes, etther in the child's life or parent. lllness and hospttalizatíon constitute a crisis situation for both the child and the famHy as it incorporates financiai, psychotogical, relational and social changes. The purpose of this work and analyze the satísfactíon and parents' perception on the importance of nursing care during hospttalizatíon and feelings experienced by parents. Objectives: To know the opinions and feelings of the parents in relation to the admlsston of the child 1n the service of Pediatrics at North of Portugal. Methods: Integrated this study parents of chtldren hospttalized in the pediatric inpatíent at the Hospital Trás-os-Montes e alto Douro, Vila Real, whose children were in the service to at least more than 48 hours, In total 33 escorts that replied to the questionnaire. For such a study we chose the type quantitative deschptíve. We proceeded to collect data by conductíng a questíonnaire, and the results of it were drafted in the SPSS program through Quantitatíve model wtth exploratory qualitatíve approach. Results: The age ofthe partícipants is between the 21 and 46 years - old, 75. 8% of respondents were married, 78. 8% of chtldren was hospitalized in the first time. We conclude that the mother is who else accompanies the chtld in the hospital. We had positive feedback regarding the interactíon parent-nurses since many parents stressed the good relatíonship with the nursing team (It reported that "Nurses" and "Nurses and "auxiliaries" were who else helped them, with 30. 3% and 21. 2% respectively). The feelings more mentioned were: anxiety -21 answers, sadness-20, fear-15 and hope with 15. The conditions offered to the parents were considered goodfor60.6%.

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Tese de Doutoramento, Ciências do Mar, da Terra e do Ambiente, Ramo: Ciências do Mar, Especialização em Ecologia Marinha, Faculdade de Ciências e Tecnologia, Universidade do Algarve, 2016

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This paper proposes a method for scheduling tariff time periods for electricity consumers. Europe will see a broader use of modern smart meters for electricity at residential consumers which must be used for enabling demand response. A heuristic-based method for tariff time period scheduling and pricing is proposed which considers different consumer groups with parameters studied a priori, taking advantage of demand response potential for each group and the fairness of electricity pricing for all consumers. This tool was applied to the case of Portugal, considering the actual network and generation costs, specific consumption profiles and overall electricity low voltage demand diagram. The proposed method achieves valid results. Its use will provide justification for the setting of tariff time periods by energy regulators, network operators and suppliers. It is also useful to estimate the consumer and electric sector benefits from changes in tariff time periods.

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Dairy cattle farms have a well-known environmental impact that affects all ecological compartments: air, soil, water and biosphere [1]. Dairy cattle farming are a significant source of anthropogenic gases from enteric fermentation, manure storage and land application, mainly ammonia (NH3), nitric oxide (NO), nitrous oxide (N2O), carbon dioxide (CO2) and methane (CH4). The emission of such gases represents not only an environmental problem but also leads to energy and nitrogen (N) losses in ruminant production systems [2-5]. Several efforts are required on the development of new technologies and strategies that mitigate gaseous emissions, N losses and improve the efficiency of the energy and N cycles [6, 7]. In the Northwest of Portugal, dairy cattle production has a major impact on the economy, with strong repercussions at national scale. Therefore, our Ph.D. thesis project aims to: a) Study natural supplements as additives in the dairy cattle diet towards a decrease in GHG emissions from feeding operations; b) Compare commercial dairy cattle diets with and without additives on gaseous emissions from manure deposited in a simulated concrete floor; c) Assess the concentrations and emissions of NH3 and greenhouse gases from commercial dairy cattle facilities; d) Evaluate the effects of different additives on lowering gaseous emissions from dairy cattle excreta, using a laboratory system simulating a dairy house concrete floor.

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Teachers’ emotional competences and well-being are fundamentally important to developing and maintaining positive relationships in the classroom, which can contribute to improving pedagogical action. References to several intervention programmes are found in the literature with the purpose of changing the practices, attitudes, and beliefs of teachers, who show evidence of a significant improvement in personal competences and school success. Therefore, an intervention with teachers integrating a broader line of research was carried out, involving parents and students as well. It consists of a programme which promotes personal (well-being and emotional intelligence) and professional (acquiring differentiated pedagogical strategies) competences over a period of six months, followed by a focus group to assess the contribution of an empowerment programme with the intention of promoting school success. The preliminary action-research study involved 10 teachers of two classes with students who show disruptive behaviour in the 7th year in a school in the central region of Portugal. The teachers, of both genders, are aged between 44 and 52, and belong to several recruitment groups. The main research question was: “To what extent does an intervention programme, intended for training, contribute to developing personal and professional competences in teachers of the 3rd cycle of basic education?” The teachers revealed a rather favourable view of their participation in the programme, considering that it helped them perceive some behaviours and practices which are less adjusted to their action in the classroom with these students (shouting, scolding, etc.). From the pretest to the posttest, statistically significant differences were found in assessing their own emotions and in their use. Signs of improvement in positive affections and satisfaction with life were also found, though with a marginal significance. The preliminary data in this empowerment programme for these educational agents points towards the importance of teachers’ awareness in what concerns their pedagogical action, as well as the need to change traditional pedagogical practices that contribute to discouraging students towards learning. The need to establish closer and systematic contact with the students and their families in order to meet their needs and expectations was also highlighted.