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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

Saúde mental e consumo adequado de frutas verduras e legumes em adultos de um município de médio porte do sul do Brasil

Rower, Helena Beatriz 25 March 2013 (has links)
Submitted by Maicon Juliano Schmidt (maicons) on 2015-06-01T14:54:42Z No. of bitstreams: 1 Helena Beatriz Rower.pdf: 1700201 bytes, checksum: e1cfc9673a0cf09e95b5175f18b6ad50 (MD5) / Made available in DSpace on 2015-06-01T14:54:42Z (GMT). No. of bitstreams: 1 Helena Beatriz Rower.pdf: 1700201 bytes, checksum: e1cfc9673a0cf09e95b5175f18b6ad50 (MD5) Previous issue date: 2013-01-31 / Nenhuma / Objetivo: Verificar a associação entre autopercepção de nervosismo/stress, distúrbios psiquiátricos menores (DPM) e consumo adequado de frutas, verduras e legumes (FVL). Método: Este é um estudo transversal de base populacional com uma amostra representativa de 1100 adultos, com idade igual ou superior a 18 anos, residentes na zona urbana de um município de médio porte do sul do Brasil. O consumo adequado de frutas e legumes foi avaliado através de duas perguntas: uma sobre a quantidade de frutas ou suco natural de frutas consumido ao dia, e outra, a respeito do número de colheres de sopa de verduras/legumes consumidos ao dia. Considerou-se como consumo adequado a ingestão de três ou mais frutas ao dia concomitante com cinco ou mais colheres de sopa de verduras/legumes ao dia. As exposições principais variáveis foram autopercepção de nervosismo/stress e DPM. Para fornecer uma estimativa das razões de prevalências (RP) brutas e ajustadas, utilizou-se a regressão de Poisson. Potenciais fatores de confusão eram variáveis demográficas, socioeconômicas e comportamentais. Resultados: Ao analisar a amostra total, observaram-se associações significativas entre o desfecho com a autopercepção de nervosismo/stress e DPM. Após o controle de fatores de confusão, adultos relatando ausência de nervosismo/stress possuíam uma prevalência de consumo adequado duas vezes maior do que aqueles com resposta positiva (RP=1,99; IC95% 1,17-3,37; p=0,010). Similarmente, participantes com ausência de DPM possuíam uma prevalência de consumo adequado FVL 52% mais elevada quando comparados àqueles que relataram presença de DPM (RP=1,52; IC95% 1,10-2,10; p=0,016). Quando estratificada para o sexo, este efeito se manteve e aumentou nas mulheres, perdendo efeito e significância estatística entre os homens. Conclusão: Os resultados sugerem que a saúde mental pode ter papel importante para o consumo adequado de FVL, especialmente entre as mulheres. / Objective: To assess the association between mental health with adequate fruits and vegetables consumption. Method: This is a population based cross-sectional with a representative sample of 1,100 adult subjects living in the urban area of a medium size city in Souther Brazil. The adequate fruits and vegetables ́ intake was evaluated through two questions: one asking the quantity of fruit or fresh natural juice ingested on a daily basis; the other asking the number of soup spoons of vegetables consumed in a day. It was considered as an adequate intake the ingestion of three or more portions of fruit and of five or more soup spoons of vegetables. The main exposures were self-reported nervousness/stress and minor psychiatric disorders (MPD). In order to provide an estimation of the unadjusted and adjusted prevalence ratios (PR) Poisson regression was used. Potential confounding factors were demographic, socioeconomic and behavioral. Results: When the full sample was analyzed, a significant association between the nervousness/stress self-awareness and minor psychiatric disturbances was found. After controlling for the confounding factors, adults reporting absence were 2 times more likely to have the appropriate daily fruits and vegetables intake than those reporting presence of stressfull/nervous estates (PR=1,99; CI95% 1,17-3,37; p=0,010). In the same way, subjects not reporting mental disorders had a prevalence of adequate intake FVL 52% higher compared to those who had MPD (PR=1,52; CI95% 1,10-2,10; p=0,016). When stratified by gender, this effect was kept and increased in women. However, it lost its effect and statistical significance among men. Conclusion: The results suggests that the mental health may have an important role in the adequate intake of fruits and vegetables, especially among women.
12

MPA i improvisation : En kvalitativ studie om Music Performance Anxiety kopplat till improvisation och improvisationsundervisning inom ensemblespel i jazz och populärmusik

Boqvist, Conrad January 2020 (has links)
Ämnet för studien var improvisation och improvisationsundervisning i relation till begreppet Music Performance Anxiety (MPA) samt tänkbara kopplingar däremellan. MPA beskrivs enklast som ångestkänslor i samband med musikutövande. Syftet med studien var att utforska Music Performance Anxiety utifrån en jazzmusikers perspektiv. Är det möjligt att känna prestationsångest i en kontext där det egentligen inte går att ”spela fel”? Jämförelser med konstmusiken blir därför relevant. Ett vidare syfte var att finna verktyg för att kunna uppmärksamma och hjälpa elever med MPA inom ensembleundervisning med fokus på improvisation. Vilka metoder och material använder pedagogerna? I studien valdes en kvalitativ metod, baserat på forskningsintervjuer med tre olika musiker och pedagoger inom improvisation. Det kompletterades genom att utforska befintlig litteratur inom improvisation och MPA. Studiens resultat påvisar att samtliga informanter hade stora erfarenheter och personliga upplevelser av både improvisation och MPA samt kopplingar däremellan och att MPA är ett förekommande fenomen inte bara inom konstmusik utan även bland jazzmusiker. Resultaten påvisar även att MPA framställs som något mindre vanligt bland jazzmusiker än hos klassiska musiker. Det finns inom jazzkulturen en reservation mot att visa tecken på svagheter som nervositet och prestationsångest. Förhoppningvis kan studien bidra till att lyfta ämnet MPA inom jazz och populärmusik, då det tidigare inte varit så beforskat inom dessa genrer. En vidare aspiration är att uppmärksamma musikpedagoger på hur de kan hjälpa elever som upplever svårigheter i improvisationsundervisning. / The subject of the study was improvisation and improvisational teaching in relation to the concept of Music Performance Anxiety (MPA) and possible connections between them. MPA is most easily described as feelings of anxiety in connection with playing music. The purpose of the study was to explore Music Performance Anxiety from a jazz musician's perspective. Is it possible to feel performance anxiety in a context where it is not really possible to "play wrong"? Comparisons with classical music therefore become relevant. A further purpose was to find tools to be able to draw attention to and help students with MPA in ensemble teaching with a focus on improvisation. What methods and materials do the educators use? In the study, a qualitative method was chosen, based on research interviews with three different musicians and educators in improvisation. It was supplemented by exploring existing literature in improvisation and MPA. The results of the study show that all informants had great experiences and personal experiences of both improvisation and MPA as well as connections between them and that MPA is a common phenomenon not only in art music but also among jazz musicians. The results also show that MPA is presented as somewhat less common among jazz musicians than among classical musicians. There is a reservation in jazz culture against showing signs of weaknesses such as nervousness and performance anxiety. Hopefully, the study can help to raise the topic of MPA in jazz and popular music, as it has not previously been so researched in these genres. A further aspiration is to draw the attention of music educators to how they can help students who experience difficulties in improvisational teaching.
13

Prestationsångest och nervositet i sångundervisning : En studie om sångpedagogers sätt att arbeta med prestationsångest och nervositet

Valli, Katariina January 2023 (has links)
This study examines how singing teachers experience students' nervousness and performance anxiety, what physical and intellectual tools they use to work with it and how they have learned to deal with students' nervousness and performance anxiety. The profession of a vocal coach is a socio-cultural profession – they learn from each other, from their students and through individual studies and education. This study consists of three semi-structured interviews and two exploratory interviews. Qualitative interviews were chosen as method to be able to take part in informants' experiences and knowledge of the subject in a deeper way. Sociocultural perspective was applied as a theoretical angle. What can be deduced from the results is that vocal coaches work with students' performance anxiety and nervousness continuously. The interviewed experienced that there has not been much talk about the subject during their education, but that they themselves have found different ways and strategies to help students with these challenges. The result shows that visualization, the use of metaphors, bodily exercises, involvement of students in concert preparation, "tricking" students into learning, creating a calm, safe and humorous environment, de-dramatization, dialogue with students and self-reflection are used by vocal coaches as tools to handle students' performance anxiety and nervousness
14

Analýza zatížení rozhodčích v utkání basketbalu různé věkové a výkonové úrovně / Analysis of load referee during basketball games in different age and performance level

Peterková, Lucie January 2015 (has links)
Title: Analysis of load referee during basketball games in different age and performance level. Objectives: Record heart rate, run the distance, match time, load zone of selected referee during basketball games. Gathered data compare between different competition levels. Methods: Analysis of outcomes gathered based on measurements of basketball referee during basketball games using sport tester RS800 and Nike iPod sensor. Measurements where gathered during season 2014/15 in the range of 48 measurements. Results: Research prove that the heart rate of basketball referee differ based on what level and competition she supervised. Expected hypothesis was proved that with growing category grow average heart rate, consequences of this fact is longer distance run during the game which means faster pace of the game and growing mental load which impact the referee. Keywords: rules, match, sport tester, heart rate, load zone, nervousness, player, coach, match time, category, competition
15

”Oj, vad händer nu?” : En självstudie om pianistens upplevelser av nervositet och oro vid olika uppspelstillfällen / ” Oh, what is happening now?” : A self-study about pianist's experiences of nervousness and anxiety at different performance situations

Edman, Mariana January 2018 (has links)
Syftet med studien är att med utgångspunkt i kroppens fenomenologi utforska vilka reaktioner som uppstår i kroppen när jag är nervös vid olika typer av framträdanden. Förutom det ska också undersökas mentalträningens betydelse för minskning av stress och nervositet och dess påverkan på min gestaltningsförmåga vid dessa spelningstillfällen. I bakgrundskapitlet presenteras bland annat begrepp som nervositet, stress, musikalisk prestationsångest, med fler. Förutom det i bakgrundkapitel redovisas relevant forskning inom området och studiens teoretiska perspektiv-kroppens fenomenologi. I metodkapitlet presenteras den huvudsakliga metoden för dokumentation av studien- loggboksskrivande samt komplementär metod-videoinspelning. Resultatet redovisas under rubriker: Nervositet och oro i olika uppspelstillfällen samtMentala träningens påverkan på nervositet och stressnivå samt gestaltningsförmåga. Under dessa teman redovisas hur negativa upplevelser av nervositet och oro vid olika uppspelstillfällen så småningom med hjälp av mental träning förändras till positiva. I diskussionen redovisas teman:Jämförelse mellan nervositet och oro innan, under och efter mentalträningsprojektet och Vikten av kontinuerlig övning samt ljudspårens effektivitet. I denna del beskrivs även mina reflektioner kring följande arbetets betydelse för mig själv och idéer om fortsatt forskning på området. / The purpose of present study is to investigate from a phenomenology of body perspective what reactions occur in my body when I am nervous at different performance situations. Apart from that this study will investigate importance of mental training for decrease of stress and nervousness and its influence on my performance ability in this performance situations. In background chapter are definitions of nervousness, stress, musical performance anxiety and more presented. Apart from that in background chapter are earlier studies on this field and following studies theoretical perspective – phenomenology of body presented. In method chapter the methods of documentation - journal notes and video are presented. Result chapter is showed in themes: Nervousness and anxiety in different performance situations and Influence of mental training on nervousness and stress level and performance ability. In these chapters is shown how my negative feelings and experiences of nervousness and anxiety with mental trainings help transformed into positive. In discussion chapter following themes are showed: Comparison between nervousness and anxiety before, under and after mental trainingandImportance of continuous training and effectiveness of recordings. In this chapter, even my thoughts about following studies importance for myself and ideas about further research on the field are presented.
16

Linearization-Based Strategies for Optimal Scheduling of a Hydroelectric Power Plant Under Uncertainty / Linearization-Based Scheduling of Hydropower Systems

Tikk, Alexander January 2019 (has links)
This thesis examines the optimal scheduling of a hydroelectric power plant with cascaded reservoirs each with multiple generating units under uncertainty after testing three linearization methods. These linearization methods are Successive Linear Programming, Piecewise Linear Approximations, and a Hybrid of the two together. There are two goals of this work. The first goal of this work aims to replace the nonconvex mixed-integer nonlinear program (MINLP) with a computationally efficient linearized mixed-integer linear program (MILP) that will be capable of finding a high quality solution, preferably the global optimum. The second goal is to implement a stochastic approach on the linearized method in a pseudo-rolling horizon method which keeps the ending time step fixed. Overall, the Hybrid method proved to be a viable replacement and performs well in the pseudo-rolling horizon tests. / Thesis / Master of Applied Science (MASc)
17

Approches intelligentes pour le pilotage adaptatif des systèmes en flux tirés dans le contexte de l'industrie 4.0 / Intelligent approaches for handling adaptive pull control systems in the context of industry 4.0

Azouz, Nesrine 28 June 2019 (has links)
De nos jours, de nombreux systèmes de production sont gérés en flux « tirés » et utilisent des méthodes basées sur des « cartes », comme : Kanban, ConWIP, COBACABANA, etc. Malgré leur simplicité et leur efficacité, ces méthodes ne sont pas adaptées lorsque la production n’est pas stable et que la demande du client varie. Dans de tels cas, les systèmes de production doivent donc adapter la tension de leur flux tout au long du processus de fabrication. Pour ce faire, il faut déterminer comment ajuster dynamiquement le nombre de cartes (ou de ‘e-card’) en fonction du contexte. Malheureusement, ces décisions sont complexes et difficiles à prendre en temps réel. De plus, dans certains cas, changer trop souvent le nombre de cartes kanban peut perturber la production et engendrer un problème de nervosité. Les opportunités offertes par l’industrie 4.0 peuvent être exploitées pour définir des stratégies intelligentes de pilotage de flux permettant d’adapter dynamiquement ce nombre de cartes kanban.Dans cette thèse, nous proposons, dans un premier temps, une approche adaptative basée sur la simulation et l'optimisation multi-objectif, capable de prendre en considération le problème de la nervosité et de décider de manière autonome (ou d'aider les gestionnaires)  quand et où ajouter ou retirer des cartes Kanban. Dans un deuxième temps, nous proposons une nouvelle approche adaptative et intelligente basée sur un réseau de neurones dont l’apprentissage est d’abord réalisé hors ligne à l’aide d’un modèle numérique jumeau (simulation), exploité par une optimisation multi-objectif. Après l’apprentissage, le réseau de neurones permet de décider en temps réel, quand et à quelle étape de fabrication il est pertinent de changer le nombre de cartes kanban. Des comparaisons faites avec les meilleures méthodes publiées dans la littérature montrent de meilleurs résultats avec des changements moins fréquents. / Today, many production systems are managed in "pull" control system and used "card-based" methods such as: Kanban, ConWIP, COBACABANA, etc. Despite their simplicity and efficiency, these methods are not suitable when production is not stable and customer demand varies. In such cases, the production systems must therefore adapt the “tightness” of their production flow throughout the manufacturing process. To do this, we must determine how to dynamically adjust the number of cards (or e-card) depending on the context. Unfortunately, these decisions are complex and difficult to make in real time. In addition, in some cases, changing too often the number of kanban cards can disrupt production and cause a nervousness problem. The opportunities offered by Industry 4.0 can be exploited to define smart flow control strategies to dynamically adapt this number of kanban cards.In this thesis, we propose, firstly, an adaptive approach based on simulation and multi-objective optimization technique, able to take into account the problem of nervousness and to decide autonomously (or to help managers) when and where adding or removing Kanban cards. Then, we propose a new adaptive and intelligent approach based on a neural network whose learning is first realized offline using a twin digital model (simulation) and exploited by a multi-objective optimization method. Then, the neural network could be able to decide in real time, when and at which manufacturing stage it is relevant to change the number of kanban cards. Comparisons made with the best methods published in the literature show better results with less frequent changes.

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