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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.
1

Investigating the Determinants of Recycling Behavior in Youth by Using Theory of Planned Behavior.

Gadiraju, Tejaswini 24 March 2016 (has links)
The aim of this study is to understand the determinants that influence the youth recycling behavior intention. In other words, this study wants to know the motivations and barriers behind university students’ recycling behavior. The Theory of Planned Behavior (TPB), which provides a theoretical framework for systematically identifying the determinants of recycling behavior, is the basis for this study. Along with the TPB variables, additional predictor variables (moral norm, past experience, knowledge of how and what to recycle, knowledge of consequences, and inconvenience) that can influence behavior intentions were tested in the study. Online survey was used to collect the required information and the sample consists of 172 students from University of South Florida. The findings suggest that past recycling experience is the major contributor to recycling behavior. Moral norm, knowledge of how and what to recycle and knowledge of consequences are also significant predictors of recycling behavior. In other words, students are more likely to form the intention to recycle, when they have prior experience with recycling on campus, if they personally feel recycling is the right thing to do, when they have appropriate knowledge of recycling and when they are aware of consequences of recycling. Recommendations to promote recycling behavior among students are discussed in this study.
2

Data-driven flight path rerouting during adverse weather: Design and development of a passenger-centric model and framework for alternative flight path generation using nature inspired techniques

Ayo, Babatope S. January 2018 (has links)
A major factor that negatively impacts flight operations globally is adverse weather. To reduce the impact of adverse weather, avoidance procedures such as finding an alternative flight path can usually be carried out. However, such procedures usually introduce extra costs such as flight delay. Hence, there exists a need for alternative flight paths that efficiently avoid adverse weather regions while minimising costs. Existing weather avoidance methods used techniques, such as Dijkstra’s and artificial potential field algorithms that do not scale adequately and have poor real time performance. They do not adequately consider the impact of weather and its avoidance on passengers. The contributions of this work include a new development of an improved integrated model for weather avoidance, that addressed the impact of weather on passengers by defining a corresponding cost metric. The model simultaneously considered other costs such as flight delay and fuel burn costs. A genetic algorithm (GA)-based rerouting technique that generates optimised alternative flight paths was proposed. The technique used a modified mutation strategy to improve global search. A discrete firefly algorithm-based rerouting method was also developed to improve rerouting efficiency. A data framework and simulation platform that integrated aeronautical, weather and flight data into the avoidance process was developed. Results show that the developed algorithms and model produced flight paths that had lower total costs compared with existing techniques. The proposed algorithms had adequate rerouting performance in complex airspace scenarios. The developed system also adequately avoided the paths of multiple aircraft in the considered airspace.
3

Patienters upplevelse av preoperativ information gällande luftvägshantering samt postoperativa halsbesvär : En intervjustudie / Patient’s experiences of pre-operative information regarding air way management and post-operative throat inconvenience : An interview study

Sörberg, Martin January 2016 (has links)
Bakgrund: Information är en viktig del i anestesisjuksköterskans möte med patienten. Information som verktyg, syftar till en bättre omvårdnad och patientsäkerhet. Vid en sövning kontrolleras patienters luftväg och andning varvid halsont och heshet kan upplevas postoperativt. Postoperativt halsont och heshet är vanligt och drabbar flertalet patienter. Att ge preoperativ information om luftvägshantering samt eventuella postoperativa halsbesvär kan därför vara av betydelse för patienters välbefinnande. Syfte: Att undersöka patienters upplevelser av preoperativ information gällande luftvägshantering samt postoperativa halsbesvär. Metod: Kvalitativ intervjustudie. 8 semistrukturerade intervjuer genomfördes på patienter som opererats i generell anestesi. Resultat: Intervjuerna resulterade i tre olika kategorier med respektive underkategorier. Känslor inför operation; i en stressad situation kände patienterna förtroende och tillit samt att lugn och trygghet ingavs. Vikten av att avväga informationsmängd; vissa upplevde för mycket information, andra för lite och det är viktigt med individanpassad information efter vad respektive patient vill veta. Informationssätt; hur, när och var information ges, påverkar patienterna, kontinuerlig och kortfattad information med möjlighet att få ställa frågor upplevs positivt. Slutsats: Patienter är olika och reagerar olika på informationsmängd samt informationssätt. Det är därför viktigt att anpassa informationsmängden och ge individanpassad information format efter patienten. Att få ingående information om luftvägsförfarande upplevs av vissa som obehagligt. Information om postoperativa halsbesvär lugnar. / Background: Information is an important part of the nurse anesthetist’s encounterwith the patient. Information as a tool, aims for a better care and safety for the patient. During an anesthesia, the patients airway and breathing is controlled, wherein sore throat and hoarsness can occur post operative. Post operative sore throat and hoarsness are common and affect many patients. Giving preoperative information regarding airway management and probable postoperative sore throat inconvenience, can be of importance of the patients well-being. Objectives: To analyze patients experiences of preoperative information regarding airway management and postoperative throat inconvenience. Methods: Qualitative interviews study. 8 semi structured interviews, were conducted on patients who had been operated in general anesthesia. Results: The interviews resulted in three different categories with respectively sub categories. Feelings before surgery; in a stressful situation the patients felt confidence and trust, and also that calm and safety were submitted. The importance of estimating amount of information; some experienced too much information, others too little and that it is important with personalized information, fitted for what each and other patient wants to know. Means of information; where, when and how the information is given, affects the patients. Continious and concised information, with opportunity to ask questions, is experienced as positive. Conclusions: Patients are different and reacts different on the amount of information and means of information. It is therefor important to adjust the amount of information and to give personalized information suited for each and other patient. Given thorough information about airway management is experienced by some patients as unpleasant. Given information about postoperative throat inconvenience soothes.Keywords preoperative information; airway management; postoperative throatinconvenience; feelings; amount of information; means of information.
4

KÖPINTENTIONER I LEAGUE OF LEGENDS : En studie om drivkraften bakom köp av spelutsmyckningar / PURCHASE INTENTIONS IN LEAGUE OF LEGENDS : A study of motivations behind purchasing cosmetics in games

Johansson, Emelina January 2023 (has links)
Denna studie utforskar vad som motiverar spelare till köp av utsmyckningar i spel. Studien undersöker League of Legends (2009) freemium modell och hur de uppnått sin framgång med säljandet av alternativa utseenden till spelkaraktären. Undersökningen studerar om och hur identifikation, demand through inconvenience och loot boxes påverkar spelarens beslut att köpa en viss spelutsmyckning. Data samlades in genom fokusgrupper och en mindre enkät där deltagarna fick diskutera frågor eller påståenden om ämnet. Målet är att skapa riktlinjer och ge råd till spelutvecklare för hur de uppnår framgång med säljandet av spelutsmyckningar och hur det blir omtyckt av spelare. Studien kommer fram till att spelare motiveras att köpa spelutmyckningar om spelet är underhållande och spelutsmyckningar är av god kvalitet, om spelaren favoriserar en viss karaktär och därmed köper många om inte alla spelutsmyckningar till den karaktären och slutligen väljer spelaren olika typer av spelutsmyckningar beroende på hur tävlingsinriktade de är. Dessutom finner undersökningen att identifikation inte var en drivande faktor till varför de köpte spelutsmyckningar i League of Legends (2009), men att det kan öka favorisering av en viss karaktär. Demand through inconvenience är förekommande i spelet League of Legends(2009) men rekommenderas att inte användas av etiska skäl. Loot boxes är inte värdesatta av League of Legends (2009) spelare men detta kräver ytterligare studier.

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