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  • 501. Airiman, Lorelei
    Musikens användning i förskola och språkskola2006Independent thesis Basic level (professional degree)Student thesis
  • 502.
    Airola, Rasmus
    et al.
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science.
    Hager, Kristoffer
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science.
    Image Classification, Deep Learning and Convolutional Neural Networks: A Comparative Study of Machine Learning Frameworks2017Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The use of machine learning and specifically neural networks is a growing trend in software development, and has grown immensely in the last couple of years in the light of an increasing need to handle big data and large information flows. Machine learning has a broad area of application, such as human-computer interaction, predicting stock prices, real-time translation, and self driving vehicles. Large companies such as Microsoft and Google have already implemented machine learning in some of their commercial products such as their search engines, and their intelligent personal assistants Cortana and Google Assistant.

    The main goal of this project was to evaluate the two deep learning frameworks Google TensorFlow and Microsoft CNTK, primarily based on their performance in the training time of neural networks. We chose to use the third-party API Keras instead of TensorFlow's own API when working with TensorFlow. CNTK was found to perform better in regards of training time compared to TensorFlow with Keras as frontend. Even though CNTK performed better on the benchmarking tests, we found Keras with TensorFlow as backend to be much easier and more intuitive to work with. In addition, CNTKs underlying implementation of the machine learning algorithms and functions differ from that of the literature and of other frameworks. Therefore, if we had to choose a framework to continue working in, we would choose Keras with TensorFlow as backend, even though the performance is less compared to CNTK.

  • 503.
    Aitenbichler, Erwin
    et al.
    Technische Universität Darmstadt, Germany.
    Behring, Alexander
    Technische Universität Darmstadt, Germany.
    Bradler, Dirk
    Technische Universität Darmstadt, Germany.
    Hartmann, Melanie
    Technische Universität Darmstadt, Germany.
    Martucci, Leonardo
    Technische Universität Darmstadt, Germany.
    Mühlhäuser, Max
    Technische Universität Darmstadt, Germany.
    Ries, Sebastian
    Technische Universität Darmstadt, Germany.
    Schnelle-Walka, Dirk
    Technische Universität Darmstadt, Germany.
    Schreiber, Daniel
    Technische Universität Darmstadt, Germany.
    Steimle, Jürgen
    Technische Universität Darmstadt, Germany.
    Strufe, Thorsten
    Technische Universität Darmstadt, Germany.
    Shaping the Future Internet2009In: Proceedings of the 3rd International CompanionAble Workshop IoPTS, Brussels, 2. December 2009., The CompanionAble , 2009Conference paper (Refereed)
    Abstract [en]

    The Internet of Things (IoT) and the Internet of Services (IoS) are two well-knownexemplars of the emerging ‘Internet variants’. These variants will be tightlyinterwoven yet specific with respect to the supporting technologies needed. Thepresent paper discusses the five variants identified as essential by the authors: IoT,IoS, Internet-of-Humans, Internet-of-Crowds, and Internet-of-Clouds. For eachvariant, a non-comprehensive set of research challenges is cited and related to thestate of the art and to ongoing projects of the lab.

  • 504. Aitman, Therese
    Fördrag om upprättande av en konstitution för Europa - en demokratisering av EU?2005Independent thesis Basic level (degree of Bachelor)Student thesis
  • 505.
    Aitman, Therese
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Health Sciences.
    Sjuksköterskans roll i omvårdnaden av patienter med terminal oro: en litteraturstudie2017Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Introduktion: Terminal oro är i denna litteraturstudie en beteckning för en samling av symtom som utgör en särskild form av lidande i livets slutskede, sprunget ur fysisk, emotionell och existentiell utsatthet. Reversibla orsaker endast kan påvisas i uppskattningsvis hälften av fallen, vilket gör terminal oro till ett renodlat omvårdnadsproblem där sjuksköterskans roll är central.

    Syfte: Att belysa sjuksköterskans roll i omvårdnaden av patienter med terminal oro.

    Metod: Polit och Becks (2017) niostegsmodell. Litteratursökningar i Cinahl och PubMed resulterade i elva artiklar som kvalitetsgranskades och analyserades enligt Colaizzis (1978 refererad i Polit & Beck 2017) fenomenologiska metod.

    Resultat: Under databearbetningen framkom fem underkategorier (Att stå utanför, Att känna sig otillräcklig, Att söka samförstånd, Att vårda i relationen, Att skydda patienten), två huvudkategorier (Avstånd, Närhet) samt en övergripande kategori (Strävan efter att trösta).

    Slutsats: Resultatet visar utmaningar i omvårdnaden samt strategier för att hantera dessa. Medvetenhet och kompetens om terminal oro, tydliga rutiner för uppföljning av dess symtom samt reflektion tillsammans med arbetskamrater gav sjuksköterskorna större möjligheter att utföra omvårdnaden på ett tillfredsställande sätt. Närvaro i den dagliga omvårdnaden och ett respektfullt bemötande etablerade en tillitsfull relation med patienterna. När sjuksköterskorna hade god kännedom om patienterna kunde multidimensionella behov mötas och välbefinnande uppnås.

  • 506. Aitman, Therese
    et al.
    Hanes, Ann-Sofi
    Irak-konflikten - en jämförande innehållsanalys av en morgontidnings respektive kvällstidnings rapportering om Irak-konflikten hösten 20022003Independent thesis Basic level (degree of Bachelor)Student thesis
    Abstract [en]

    The Iraq conflict has been around for a while. During the autumn of 2002 the problem was brought to the fore and received a large amount of coverage in the media. Due to the influence the media has over how we perceive the world, the need for them to be objective and matter of fact, when reporting the news, is crucial. We thought it would be interesting to see if the media does rapport certain news objectively. Because the choice of media formats is so large we choose to examine newspaper articles. We choose to compile a quantity and quality content analysis of the Svenska Dagbladet and Aftonbladet. We chose these two newspapers because of several factors, firstly one is a broadsheet and the others a tabloid. Secondly they do not share the same political bias. The aim of the study was to examine how the two newspapers presented the Iraq conflict, if there were any differences in the reporting and if so which. As a base for the study we have used Hvitfelts different points for newsrapporting of crises and Westerståhls Objectivity Concept. The result of the study showed no real difference in the reporting of the conflict. What we did notice however was that it appeared that the newspapers did give a misleading picture of the conflict. Both newspapers lost some of their objectivity by using emotive language, something that shouldn’t be found in news reporting. The biggest difference between the publications was their standpoint on the issue. With such limited material no general conclusions can be drawn about the reporting of the Iraq conflict. We are however of the opinion that it shows the general tendencies of the Svenska Dagbladets and Aftonbladets reporting of the conflict.

  • 507.
    Akaka, Melissa A.
    et al.
    Daniels College of BusinessUniversity of Denver.
    Koskela-Huotari, Kaisa
    Karlstad University, Faculty of Arts and Social Sciences (starting 2013), Service Research Center (from 2013). Karlstad University, Faculty of Arts and Social Sciences (starting 2013), Karlstad Business School (from 2013).
    Vargo, Stephen L.
    Shidler College of BusinessUniversity of Hawai’i at Mānoa.
    Further Advancing Service Science with Service-Dominant Logic: Service Ecosystems, Institutions, and their Implications for Innovation2019In: Handbook of Service Science, Volume II / [ed] Maglio, P. P., Kieliszewski, C. A., Spohrer, J. C., Lyons, K., Patricio, L. & Sawatani, Y., New York: Springer, 2019, Volume II, p. 641-659Chapter in book (Refereed)
    Abstract [en]

    Service-dominant (S-D) logic has been recognized as a theoretical foundation for developing a science of service. As the field of service science advances the understanding of value cocreation in service systems, S-D logic continues to evolve as well. Recent updates and consolidation of the foundational premises establish five core axioms of S-D logic and outline a pathway for understanding the role of institutions in value cocreation in general, and innovation in particular. This chapter overviews the evolution of S-D logic and its service ecosystems view, which can contribute to the furthering the development of service science and advancing the study of innovation in service systems. Future research directions are proposed.

  • 508.
    Akermo, Hanna
    Karlstad University, Faculty of Arts and Education.
    Barns möjligheter till lek i en sydafrikansk förskola: En studie från en sydafrikansk kåkstad2013Independent thesis Advanced level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The purpose was to find out how South African preschool teachers regard play and its relationship to learning, development and influence in play. What teachers think about children’s learning and development, and if children have any influence in their preschool play, according to the preschool teachers.The empirical material consists of interviews with six South African preschool teachers. The analysis has been conducted according to a thematic content of analysis focusing two themes; play, learning and development as one theme and children’s influence on their play as a second theme.The preschool teachers considered that play is beneficial for children in their learning and development. Play is about everything in children’s life; through play children discover the world, learn and develop in a general sense. Play also contributes to children’s learning about interaction with others.A conclusion from the study is that play is considered as an essential part in children’s lives, both in literature and in the interviews. The result shows that the preschool teachers wanted what is best for the children. As the Convention on the rights of the Child states about play: it’s about survival and development, which the teachers considered was a priority.

  • 509. Akervall, Anton
    et al.
    Iivonen, Joakim
    Ledarskapet i FöreningsSparbanken - lokal bank Karlstad2003Independent thesis Advanced level (degree of Master (One Year))Student thesis
    Abstract [sv]

    Denna uppsats beskriver ledarskapet i FöreningsSparbanken i Lokal Bank Karlstad hos fem intervjuade chefer. Uppsatsen tar sin början hos intervjuer med lokalbankschefen och fyra kontorschefer och utifrån insamlat material identifieras olika teman vilka uppsatsen därefter förankrar teoretiskt. Teman uppsatsskrivarna identifierar innefattar bland annat Könsperspektiv på ledarskap, Nyckeltalsstyrning, Mentorskap, Motivation och Konflikt. Eftersom könsstrukturen på kontoren är snedfördelad intresserar sig uppsatsen för hur ledarskapet påverkas. Nyckeltalsstyrning visade sig vara en återkommande del i vardagen för cheferna och nyckeltal som styrmetod är därför något uppsatsen reflekterar över teoretiskt. Då det visade sig att en av kontorscheferna hade en mentor blev det intressant att reflektera teoretiskt över hur det kan gagna chefskapet och organisationen. En annan vardagsfråga för kontorscheferna var hur de skapar motivation och hanterar konflikter av olika slag. Empirin analyseras därefter utifrån teorin och i uppsatsens slutsatskapitel besvaras uppsatsens syfte. Syftet med uppsatsen är att beskriva ledarskapet i Lokal Bank Karlstad utifrån genomförd omorganisation och vald teori. Uppsatsen hittar ledarskapets olika beståndsdelar och sammanfattar dem i en figur i slutsatskapitlet. Ledarskapet i Lokal Bank Karlstad illustreras med en ledarskapsstjärna vilken strålar ut i fem aktiviteter. Aktiviteterna är Mål, Konflikthantering, Coachning, Motivation och Lyssna. Centralt för nämnda aktiviteter är Samtal och Dialog, kontorscheferna lägger mycket tid till att samtala och lyssna på sina medarbetare. En viktig del av chefens vardag består även av mål och måluppföljning. Aktiviteten konflikthantering kan handla om att få medarbetarna att arbeta mot satta mål och genom aktiviteten coachning hjälper kontorschefen medarbetarna att utveckla sig. Kontorschefen ser också till att medarbetarna hålls motiverade och ytterliggare en viktig aktivitet är arbete kring mål och hur målen skall nås.

  • 510. Akervall, Anton
    et al.
    Iivonen, Joakim
    Sjöqvist, Sven-Olof
    Bärgningsföretagets köpprocess2002Independent thesis Basic level (degree of Bachelor)Student thesis
    Abstract [sv]

    Uppsatsen har VM-Fordonsteknik i Karlstad AB som uppdragsgivare. Företaget sysslar bland annat med att bygga på bilbärgningsutrustning på lastbilschassi. Undersökningen är gjord bland företag som ägnar sig åt bilbärgning. Syftet med arbetet är att försöka beskriva och förstå bärgningsföretagens köpprocess vid köp av bärgningsfordon. Arbetet har sin utgångspunkt i teoretiska modeller om köpprocessen och den insamlade empirin har jämförts med teorin. Huvuddelen av det empiriska materialet består av ett antal telefonintervjuer med representanter från bärgningsföretag runt om i Sverige. Slutsatserna från arbetet är att bärgningsföretagens köpprocess är betydligt mer komplex än de sekventiella modeller som använts som utgångspunkt. Köpprocessen är istället en ständigt pågående process där de olika stegen går in i varandra och där det inte går att urskilja vare sig början eller slut.

  • 511.
    Akervall, Elin
    et al.
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Health Sciences (from 2013).
    Engström, Alexandra
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Health Sciences (from 2013).
    Copingstrategier hos patienter med kolorektalcancer: en litteraturstudie2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 512.
    Akin, Serdar
    Karlstad University.
    Aggregerad konsumtion: En ekonometrisk studie2009Independent thesis Basic level (degree of Bachelor), 15 credits / 22,5 HE creditsStudent thesis
    Abstract [en]

    The purpose of this study is to evaluate the real aggregated consumption and empirically determine its exogenous variables. A multiplicative analysis is done in the context of government stabilization policy to find out how policymakers can execute a stimulus package that will bring the best multiplicative effect to the economy The conclusion of the study is that real income, net financial assets and real-estate price index are all statistically significant. An effective expansive fiscal policy is a public-financed investment in the private sector. Coordination is going to be crucial when stimulus package is developed due to the fact that leakage in the form of imports will prevent the expected multiplicative effect.

  • 513.
    Akintola, Abayomi
    Karlstad University, Faculty of Economic Sciences, Communication and IT.
    Hiring Discrimination in Racially Diverse Labour Markets:A Cross Country Study2011Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    The goal of this thesis is to determine if hiring managers are sensitive to racial background ofapplicants during hiring process. The author determined hiring discrimination using twoperspectives, first what did the hiring managers know about hiring discrimination? Second,correspondence testing was conducted to quantitatively determine if employers discriminateagainst certain names during resume screening. A cross country study was done betweenSweden and Canada. The results revealed that hiring managers in both countries are wellaware of negative impact of hiring discrimination on a firm or an organisation and all therespondents condemned it. However, correspondence testing showed that hiringdiscriminations occur in both countries. 1009 jobs were applied in Sweden while 1326 jobswere applied in Canada. The aggregate results for Sweden shows that applicants with foreignnames receive a call back rate of 66.3% while applicants with Swedish names receive a callback rate of 77.2%. The results for Canada show that applicants with foreign names receiveda call back rate of 73.5% while applicants with English names receive a call back rate of74.6%. Probit estimation was used to estimate the probability of applicants being invited forinterview. The results indicate that hiring discrimination against foreign names is morepronounced in Sweden compared to Canada.

  • 514.
    Aknooni, Nina
    et al.
    Karlstad University, Faculty of Economic Sciences, Communication and IT. Karlstad University.
    Carlsson, Charlotte
    Karlstad University. Karlstad University, Faculty of Economic Sciences, Communication and IT.
    Vilken bank väljer du?  : - en nyckeltalsanalys av de fyra storbankerna i  Sverige 2009Independent thesis Basic level (degree of Bachelor), 15 credits / 22,5 HE creditsStudent thesis
    Abstract [en]

    Title: Which bank do you choose? – A ratio analysis of the four major banks in Sweden 

     

    Background and problem: In 2008 the world was hit by an economic crisis. The crisis 

    has affected the major Swedish banks, mainly through increased credit losses. The 

    increase in credit losses incurred due to various factors but mainly due to banks' 

    exposures in the Baltic’s. The study should be considered whether any bank fared better 

    than the others, but even if some deterioration due to the economic crisis. This should be 

    investigated by using various financial ratios selected for this study. 

     

    Purpose: The aim of this study is to compare the four main banks in Sweden, 

    Handelsbanken, Nordea, SEB and Swedbank, based on some selected indicators. We also 

    want to study how they influenced by the current economic crisis by studying a five-year 

    period between 2004 and 2008. 

     

    Methodology: For the collection of information, we mainly rely on banks' annual 

    reports, literature in finance and business valuation, and external information.  

    By studying the ratios for the years concerned, we shall compare the banks with each 

    other and study the extent of the crisis. 

     

    Results and conclusions: The results of the study's indicators show deterioration in 

    values for all of the banks in 2008 and the first quarter of 2009. The reason for these 

    declines is based in the current economic crisis. The most obvious change that is visible is 

    the increased credit losses that affect net income, which in turn affect many of the 

    selected ratios. The key figure shows the most visible changes is the credit loss rate, return 

    on equity and earnings per share. Furthermore, the economies of the banks are expected 

    to decrease further in 2009. 

     

    Proposal for further study: Our proposal for a further study is to follow the banks of 

    the current crisis and to study further about the indicators to get a deeper understanding 

    of what influenced the banks. A further proposal is to study how the banks are recovering 

    after the crisis during 2008. 

  • 515.
    Akrawi, Alberz
    et al.
    Karlstad University, Faculty of Economic Sciences, Communication and IT, Department of Information Systems and Project Management.
    Petersson, Samuel
    Karlstad University, Faculty of Economic Sciences, Communication and IT, Department of Information Systems and Project Management.
    Resurshantering av personer i multiprojektmiljöer2013Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    An important task for project managers in multi-project environments is to effectively choose the right people to the project team. For organizations, it means being able to prioritize and plan human resources among the various projects running in parallel. The purpose of this paper is to describe how a project manager in multi-project environments looks at the allocation of people in their projects. We did our research through literature reviews and interviews with seven project managers.

    The research shows that the studied organizations highlight both the expertise and the personal factors in an election. They do not use any specific personality test to identify their staff. The most important thing for them is instead the area of competence, although personality is seen as something important to complete the project. Why then don´t the different personality models have any impact in the selection? The organizations believe that they are already satisfied and think that the choice of simple manageable methods work well. One obstacle may be that they perceive the instep too high in the form of courses, training, purchasing models, etc., and the investment is perceived as being more costly than the estimated profit.

    A follow-up question to our main research question was how the project managers perceived the need for IT support system for resource management to help the business improve and streamline their processes of allocation of resources. We have, through our literature studies looked at the importance of using a more advanced IT support system for resource management in large organizations, but in the businesses we studied, they are not used. For example, it may be that IT support can mean large economic costs, large rearrangements and extensive training for staff.

    It turned out that those simpler IT support systems as MS Excel in combination with active internal communication is perceived as a sufficiently effective method of resource management particularly for the smaller businesses. Especially in these businesses, it is easier to get background information about potential project members' skills and personal qualities.

  • 516. Akre, Ida
    Pedagogers sätt att bemöta barnens initiativ i förskolan2011Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The aim of this research is to develop a better understanding of how preschool-teachers respond to children in preschool, when they show that they want to have some influence. I have concentrated this study on how the preschool-teachers respond to the children in the gatherings and when the children are playing freely indoors, where the questions at issue are:

    How do the preschool-teachers respond to the children’s initiative for participation in the gathering and while playing freely?

    There have been four preschool-teachers and 14 children who have taken part in this study. The children who took part are in the ages of three to five. The study was done at a section in a preschool in middle Sweden.

    The method used in this study is unstructured observations. The collecting of material has been concentrated on how the preschool-teachers respond to children while they are playing freely and during the gatherings. Is the response positive or negative, and if there are any obstacles that might have caused the preschool-teachers’ choice of response. The result shows that the preschool-teachers are more eager to a positive response towards the children’s initiative for participation while the children are playing freely compared to the gatherings. It shows that the preschool-teachers have more control and are stricter with the content in the gatherings. During the daily routines (e.g. cleaning), at the morning gatherings and when the preschool-teachers are occupied with something else, the children tend to receive either a negative response or the word “wait” as an answer.

    Keywords: Preschool, preschool-teachers, response, participation

     

  • 517. Akrin, Catrine
    Asfaltsblomma: En studie om vilka barn som omplacerades på barnhem och i fosterhem i Karlskoga under åren 1918-19252014Student paper second term, 10 credits / 15 HE creditsStudent thesis
  • 518.
    Aksell, Marina
    Karlstad University, Faculty of Arts and Social Sciences (starting 2013), Department of Social and Psychological Studies.
    "Det akuta löser jag snabbt, men det är akut hela tiden": En kvalitativ studie om lärares och rektorers hantering av arbetsuppgifter under stress.2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Sammanfattning

     

    Den offentliga sektorn har under de två senaste decennierna förändras genom att New Public Management har implementerats vilket medfört att många reformer har genomförts. Det har inneburit att den offentliga sektorn har effektiviserats och slimmats. Syftet med denna studie är att undersöka vilka faktorer de intervjuade lärarna och rektorerna upplever stressande samt hur de hanterar sin arbetssituation vid arbetsrelaterad stress. Mitt intresse för ämnet kommer av att jag själv arbetar som lärare på en gymnasieskola och därmed har ett inifrån perspektiv av hur lärare men även rektorer påverkas av stress.

    Jag valde en kvalitativ metod med en hermeneutisk ansats som innebär tolkning och reflektion. Metoden för att inhämta empiriskt material till min studie skedde genom öppna halvstrukturerade intervjuer som innebär en flexibilitet vid intervjutillfället. Analysen av mitt material gjordes genom att jag kontinuerligt rörde mig mellan delar och helhet i en process.

    Enligt Eriksson och Larsson (2011) innebär socialt stöd att relationerna till kollegor och chefer är mycket betydelsefulla. Detta bekräftar informanterna i studien. Samtidigt visar också studien att positiva interaktionsritualer var grundläggande och viktiga för lärarna och rektorerna. Collins (2004) och Olsson (2008) menar att positiva interaktionsritualer ger emotionell energi som medverkar till att individer och grupper kan hantera stressade situationer lättare. Resultatet visade även att lärarna och rektorerna använder sig av liknande strategier för att hantera sin arbetssituation vid stress och att de inom strategierna gör prioriteringar för vad som är viktigast. Det övergripande som studien visar är att det kontinuerligt råder en tidsbrist i informanternas arbete som de försöker att hantera genom olika strategier. 

  • 519.
    Akselsen Andersson, Carmitha
    Karlstad University, Faculty of Arts and Social Sciences (starting 2013).
    Lekens betydelse för barns utveckling: En studie om hur skolgårdsmiljöns utformning påverkar barns leklust2014Independent thesis Advanced level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The purpose of this study is to illustrate the impact on children's development around playing and how significance the formation of the schoolyards is focusing on how it inspire and calls to play within the children's. The study will also show how the youth workers experience the schoolyards and how they can incorporate the playground in their work to inspire the children's play and activities. The methods used in this study is based on both real conversations and by mail with educated youth workers and observations. The results shows that the schoolyard environment is very important for the children's play and development. The study reveals the importance of having nature like forest nearby and that the environment should be suited for everyone. The children need spaces on the schoolyard and in the nature to evolve their ways of free playing, and also their needs for suited playground equipment.

  • 520.
    Aktas, Burcu
    Karlstad University.
    Språkstimulering: Hur stimulerar pedagoger språkinlärning när barn har ett annat modersmål än svenska?2013Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
  • 521.
    Akyol, Malin
    et al.
    Karlstad University, Faculty of Arts and Social Sciences (starting 2013), Department of Geography, Media and Communication (from 2013).
    Khalid, Labar
    Karlstad University, Faculty of Arts and Social Sciences (starting 2013), Department of Geography, Media and Communication (from 2013).
    Segregation och dess inverkan på Akalla, Spånga och Tensta: En fallstudie om inkludering kring ungdomar i förorten2018Student paper second term, 5 credits / 7,5 HE creditsStudent thesis
    Abstract [sv]

    Syftet med denna studie är att undersöka och jämföra om segregationen har någon inverkan på ungdomar i kranskommunerna Akalla, Spånga och Tensta. En kvalitativ undersökning utfördes och fem informanter från Akalla, Tensta och Spånga intervjuades. Segregationen finns mer eller mindre i dessa områden och det bekräftades genom intervjuerna, där en närmare bild på verkligheten målades fram. Ungdomarna känner ett utanförskap och som att de ignoreras av staten. Denna studie är baserad på teorierna “Vi och dem” och “Diskriminering” eftersom de var mest lämpliga i denna fallstudie, samt två tidigare forskningar som är skrivna av Jon Loit och Hörnqvist & De los Reyes.

    Materialet och resultatet sammanställdes och korrelerades vilket resulterade i en diskussion. I diskussionen diskuterar författarna resultaten av intervjuerna samtidigt som de kopplas till teorierna. Det som vi kan se som påverkar effekten av segregation på ungdomarna är att de inte känner sig inkluderade i samhället samt att de inte blir bemötta på samma sätt som en person från innerstaden blir. Slutsatsen besvarar vår frågeställning förenklad med en sammanfattning om hur samhällsplaneringen kan åstadkomma med.

  • 522.
    Al Motasem, Ahmed
    et al.
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Engineering and Physics. Assiut University, Egypt.
    Bergström, Jens
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Engineering and Physics.
    Gåård, Anders
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Engineering and Physics.
    Krakhmalev, Pavel
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Engineering and Physics.
    Holleboom, Thijs
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Engineering and Physics.
    Tool microstructure impact on the wear behavior of ferrite iron during nanoscratching: An atomic level simulation2017In: Wear, ISSN 0043-1648, E-ISSN 1873-2577, Vol. 370-371, p. 39-45Article in journal (Refereed)
    Abstract [en]

    In the present work, molecular dynamics simulations were used to investigate the impact of the tool microstructure on the wear behavior of ferrite workpiece during nanoscratching. The tool microstructure was modified by varying the carbide (cementite) contents. The simulation results show that dislocations are the primary mechanism for plastic deformation of the workpiece material. It is found that total dislocation length varies significantly depending on the carbide content in the tool. Furthermore, other tribological phenomena were also observed to depend on the carbide contents. For example, the average value of frictional forces decreased while the normal force increases with increasing carbide contents, and hence the friction coefficient was decreased. Additionally, the shape and size of lateral and frontal pileups are lowered. The structural analysis of the pileup region reveals the loss of long range order and start of amorphisation. The temperature distribution of the pileup regions showed an increase of the pileup temperature when carbide is added into tool. The wear volume is considerably reduced when the carbide content increases. The average scratch hardness was found to decrease and the result was analyzed with the theoretical Taylor hardening model.

  • 523.
    AL RADAIDEH, PERNILLA
    Karlstad University, Faculty of Social and Life Sciences.
    En resa i turismen: Jämförande text- och bildtolkning av två värmländska turistbroschyrer2007Independent thesis Basic level (degree of Bachelor), 10 points / 15 hpStudent thesis
    Abstract [en]

    This Swedish essay deals with a study of two tourist brochures of Värmland from two different years, 2005 and 2007. The purpose is to examine what their differences and similarities are through a comparison. My focus is put on what tourist categories the brochures mainly turn to. I want to se if they turn to all tourists or if they lean towards a special group of people.

    To guide me I have used both textual and picture interpretation.

    I have created my own tourist categorization as a tool for my study, named The matter tourist-related categorization. It contains six categories which all have some common denominator where tourists will fit in.

    The result shows that all tourist categories are mentioned even if some are more frequently mentioned than others.

    Key words: Tourism, brochures, categorization, interpretation, nature and culture.

  • 524. Al Rawi, Mohammed
    Developement of a power spectrum based method for Doppler estimation in mobile radoi communications2004Independent thesis Basic level (professional degree)Student thesis
    Abstract [en]

    The design of efficient mobile radio receivers requires knowledge of statistical parameters of the transmission channel, such as signal-to-noise ratio and Doppler spread, associated with multipath fading. In this work, a spectrum based Doppler spread estimator is proposed and evaluated. The work is conducted in Matlab. The objectives: 1. Estimate the power spectrum of the multipath channel by using a periodogram based method, either Bartlett or Welch and relate the power interval/bandwidth to an estimate of the Doppler spread. The variance of the noise is assumed to be known. 2. Compare the performance of the power spectrum based Doppler spread estimator with covariance based methods. 3. Estimation accuracy of ±10 Hz within 95% confidence interval, for signal-to-noise ratios (SNR’s) between 0 to 15 dB and maximum Doppler frequencies up to 200 Hz. 4. Study the impact of a frequency deviation and a line-of-sight (LOS) parameter on the performance of the evaluated Doppler spread estimator.

  • 525.
    Al- Robeyi, Zainab
    Karlstad University, Faculty of Social and Life Sciences.
    Att uppleva naturen med alla sina sinnen: Hur undersöker och upplever förskolebarnen naturen?2013Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Abstract

    This project discusses various aspects of children's way to explore nature with their senses. Therefore I conducted a study in two preschools, one nature-oriented and another preschool. This study was carriedout usien the three metods, interviews, observations and surveys. Interview four children from each preschool, observations of each group outdoors during four different occasions and question forms to teachers.

     

    The result of the study showed that both teachers and children have a great interest in being outdoors in nature, but it is not always possible to take out all children's groups. The reason is large groups and inadequate staff. When you are out in the forest according to teachers, it is important to be attentive, present, and meet the children’s interests. They need to be stimulated with questions and inspire them about what is happening and what might happen in nature plus take natural materials as help in the creative activities of the preschool.

     

    Keywords: Biology, children's perceptions, exploring, outdoor environment

  • 526.
    Al Ubeidi, Dina
    Karlstad University, Faculty of Health, Science and Technology (starting 2013).
    Effekter av lignin och cellulosa som additiv vid pelletering av träpellets2018Independent thesis Basic level (professional degree), 15 credits / 22,5 HE creditsStudent thesis
    Abstract [en]

    Using renewable energy sources, such as wood fuel pellets, can create conditions for sustainable development. Wood pellet production is increasing globally and the increase is expected to continue in the future. This means that the pellets industry must start to increase their raw material base, for an example by using by-products as bark. In order to improve the pellet properties and the pelleting process, additive can be used. The purpose of this study was to increase the knowledge of how lignin and cellulose as additives affect pelleting properties on pellets produced from spruce-and birch sawdust and aspen bark. The aim was to find out what effects lignin and cellulose have on the density of the pellets, hardness, moisture absorption, and energy for compression and friction.

    Lignin and cellulose were tested as additives in the amount of 0, 1, 2.5 and 4% for pelletizing spruce-and birch sawdust as well as aspen bark in a single pellet press. The pellets were produced at a die temperature of 120, 100oC and 100, and a moisture content of 12, 10 and 14%.

    For pellets produced by spurce sawdust and aspen bark, the addition of lignin resulted in improved pellets, without the compression and friction energy changing. In the case of pellets produced by birch sawdust, the addition of lignin and cellulose did not change the pellet properties, on the other hand, it increased the energy for compression and friction. Both lignin and cellulose reduced the moisture absorption capacity of pellets. 

  • 527.
    Al-abuhalje, Afrah
    et al.
    Karlstad University, Faculty of Economic Sciences, Communication and IT.
    Al-abuhalje, Sanaa
    Karlstad University, Faculty of Economic Sciences, Communication and IT.
    Översikt och tillämpning av XML2007Independent thesis Basic level (degree of Bachelor), 10 points / 15 hpStudent thesis
    Abstract [en]

    Abstract

    HTML is not powerful enough to handle the increasing demands on Internet applications of today, which is one of the reasons to why a new markup language called XML has been introduced. In this report we describe the basics as well as more advanced parts of XML like DTD, XML Schema and XSLT.

    XML combines the simplicity of HTML and the possibilties of SGML. One of the premier strengths of XML is that it may be used to store any type of data without any considerations to how it will be presented later. The content and the presentation are separated completely. Another important property is that XML documents are stored as

    ordinary text files, which means that XML is system and platform independent.

    In this report our aim consists of two goals. One goal is to create a suitable format for storing configuration data using XML. The configuration data is to be used by a network emulator. In order to emulate the conditions present in a real network the emulator is

    capable of emulating things as bit errors, packet losses, bandwidth limitation and delay, all of which are examples of configuration data. The other goal is to describe the basics as well as more advanced parts of XML in general. As we describe XML, we continuously show how we apply this knowledge to our application. In this way, the reader achieves a good insight into how XML works.

  • 528.
    Alaeddine, Ahmed
    Karlstad University, Faculty of Economic Sciences, Communication and IT, Department of Law.
    Varumärkesintrång på internet och regeln om forum delicti2014Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The trademarks are territorially limited. The trademarks legal protection applies only within the territory of the state. The consequence of the principle of territoriality is that there may be multiple trademarks owner for the same brand but in different countries. In the analog world, the coexistence of the same brands in different countries hasn’t caused any significant problems. Internet's increasing use as a commercial marketplace has resulted that a brand has becomes more widely on the Internet than in the analog world. It has become increasingly difficult to control the spread of their brands on the Internet, and the explanation is that the Internet lacks the natural geographic boundaries as in the analog world. For that reason the probability that a Swedish brand may come into collision with a similar mark in another country will increase. Therefore, cross-border disputes concerning trademark infringement has grown more and more.

     

    A trademark violation could only have happened if the brand use can be linked to the territory in which the trademarks rights exist. The location of where an infringement has taken place is difficult to establish on the Internet. The same problem arises in the international private and procedural law. In order for a court to have jurisdiction over a claim, there must be a connection to the forum. Therefore it’s necessary that action can be linked to the territory in which the trademark right is registered. The aim of this paper was to analyze the rules of the jurisdiction of the Brussels I Regulation, and how these rules shall apply to trademark infringement on the Internet.

     

    In my paper, I have concluded that the rules of jurisdiction must be given a stricter application, due to the risk that the jurisdiction rules can be abused. In the essay, I have suggested that a requirement on commercial effect must be demanded if the court should have jurisdiction to hear a proceedings for trademark violation. By requiring commercial effect it be can determined if there is an enough connection with the forum state. The positive aspect of a stricter requirement is that the defendant shouldn’t have to face proceedings in foreign countries. A stricter application is in line with the requirement of legal certainty and that there must be a close link between the court and the proceedings.

  • 529.
    Ala-Häivälä, Anders
    Karlstad University, Faculty of Social and Life Sciences.
    Batch-digitalisering och GIS-anpassning av analoga enkätdata2007Independent thesis Basic level (degree of Bachelor), 10 points / 15 hpStudent thesis
    Abstract [en]

    This report describes the work with utilizing and adapting data from a visitor poll for use in a GIS. The poll was performed by the Municipality of Karlstad and the Swedish Forest Agency to survey peoples visit patterns in the I2-Forest, a former military training field which is now used as a recreation area. The poll consists of a number of questions about the visitor’s activities, age, opinions etc, and a map on which the visitor has drawn his or her path through the forest. Source data is a database containing poll answers, and the original maps with the drawn information. The task is partly to investigate if the maps can be batch-digitalized through scanning and vectorization, and partly to normalize the database.

    A method for digitalizing has been developed and tested on a selection of the maps. The method consists of a number of steps, including image processing, classification and vectorization. According to lack of batch-possibilities in the used GIS software, macros have been created by programming in VBA. The method works well on the selected maps and the conclusion is that it is possible to digitalize the drawn lines automatically. However, there are some shortages regarding accuracy and usability. Furthermore, the selection is relatively small and some adjustments on the settings for classification and vectorization might be necessary when applying the method on a larger part of the data.

    The database has been normalized as far as reasonable with consideration of performance and usability. To enable reliable searches, several attributes has been interpreted and modified through categorization and classification.

    The result is a geodatabase consisting of all poll answers, and the selected data from the digitalization test. To show how the database can be used, two simple examples of analyses have been made.

  • 530.
    Alaie, Iman
    et al.
    Uppsala universitet.
    Frick, Andreas
    Uppsala universitet.
    Marteinsdottir, Ina
    Linköping University.
    Hartvig, Per
    Copenhagen University.
    Tillfors, Maria
    Örebro universitet.
    Eriksson, Elias
    Gothenburg University.
    Fredrikson, Mats
    Uppsala universitet.
    Furmark, Tomas
    Uppsala universitet.
    Serotonin Synthesis Rate and the Tryptophan Hydroxylase-2 G-703T Polymorphism in Social Anxiety Disorder2014In: Biological Psychiatry, ISSN 0006-3223, E-ISSN 1873-2402, Vol. 75, no 9, p. 357S-357SArticle in journal (Refereed)
  • 531. Alakangas, Linda
    Minskning av suspenderade ämnen i lakvatten2008Independent thesis Basic level (professional degree)Student thesis
  • 532.
    Alam, Moudud
    et al.
    Högskolan Dalarna.
    Carling, Kenneth
    Högskolan Dalarna.
    Nääs, Ola
    Högskolan Dalarna.
    Sommarjobb, arbetslivserfarenhet och framtida arbetsinkomst2015In: Arbetsmarknad & Arbetsliv, ISSN 1400-9692, Vol. 21, no 4, p. 26-40Article in journal (Refereed)
    Abstract [sv]

    De flesta kommuner erbjuder sommarjobb till gymnasieungdomar. Vi har undersökt om denna arbetslivserfarenhet påverkar flickors framtida arbetsinkomster. Vi följde 1 447 flickor i fem till tolv år efter avslutat gymnasium. Flickorna hade under sitt första gymnasieår ansökt och slumpmässigt tilldelats sommarjobb av Falu kommun. Effekten av sommarjobbserfarenheten på arbetsinkomsten var positiv och betydande för dem.

  • 533. Al-Ameri, Ali
    A general LC/MS method for cleaning verification2006Independent thesis Advanced level (degree of Master (One Year))Student thesis
  • 534.
    Al-Ameri, Leyth
    Karlstad University, Faculty of Economic Sciences, Communication and IT, Department of Economics and Statistics.
    Oil And The Macroeconomy: Empirical evidence from 10 OECD countries2012Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This paper examines the oil price-macro economy relationship by means of analyzing the impact ofoil price on Industrial production, real effective exchange rate, long term interest rate and inflation rate for a sample of ten OECD countries using quarterly data for the period 1970q1-2011q1.The impact of oil price shock on industrial production is negative and occurs with a lag of one year. However, the impact has weakened considerably compared to the 1970s. The impact on real effective exchange rate is negative/positive for a net importer/exporter, and the magnitude of the shock depends on the county´s share of net import/export of total world demand/supply. Interest rates are affected negatively, through increase in inflation rates following the oil price shock. The effect tends to die out after 5-8 quarters following the shock for most of the variables and countries. This paper also applies alternative methods to test for unit root and cointegration, which takes into account for structural breaks in the data. The weakness of Phillips-Peron test is clearly demonstrated in the case of inflation rates and interest rates, where the test falsely considered the series to be non-stationary when they in fact are stationary around a structural break. There is also strong evidence of cointegration between oil price and inflation rates and between oil price and interest rates, especially when taking account for structural breaks.

  • 535. Alanko, Eira
    et al.
    Holmberg, Karin
    Sjuksköterskans preventiva arbete med HIV - en systematisk litteraturstudie2005Independent thesis Basic level (degree of Bachelor)Student thesis
    Abstract [sv]

    Nyckelord: Prevention, HIV, sjuksköterska Att investera i prevention av humant immunbristvirus (HIV) förhindrar oändligt mänskligt lidande och därför är sjuksköterskans preventiva arbete med HIV av stor vikt. Syftet var att beskriva hur sjuksköterskan kan arbeta preventivt med HIV. Metoden utgjordes av en systematisk litteraturstudie och 15 vetenskapliga artiklar ligger till grund för studiens resultat. Samtliga artiklar har kvalitetsgranskats. Resultatet utgörs av fyra teman med tillhörande kategorier: Prevention genom personlig kompetens innebär att sjuksköterskan ger ett bra bemötande, använder sin kunskap samt är trygg i sig själv och sin yrkesroll. Prevention med fokus på riskreduktion utför sjuksköterskan genom att informera, ge råd, stödja och utbilda klienten. Det tredje temat identifiera individer som löper risk att smittas av HIV innebär riskbedömning, HIV-test och uppföljning. Det sista temat riskreduktion och hälsobefrämjande inriktat mot drogmissbrukare belyser hur sjuksköterskan hjälper till att reducera smittöverföring och öka klientens hälsa samt hänvisar klienten vidare och förmedlar kontakter.

  • 536.
    Alaqra, Ala Sarah
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    The Wicked Problem of Privacy: Design Challenge for Crypto-based Solutions2018Licentiate thesis, comprehensive summary (Other academic)
    Abstract [en]

    Data privacy has been growing in importance in recent years, especially with the continuous increase of online activity. Researchers study, design, and develop solutions aimed at enhancing users’ data privacy. The wicked problem of data privacy is a continuous challenge that defies straightforward solutions. Since there are many factors involved in data privacy, such as technological, legal, and human aspects, we can only aim at mitigating rather than solving this wicked problem. Our aim was to focus on human aspects for designing usable crypto-based privacy-enhancing solutions.  In this thesis, we followed a user centered design method by using empirical qualitative means for investigating user’s perceptions and opinions of our solutions. Most of our work has focused on redactable signatures in the cloud context within the eHealth use-case. Redactable signatures are  a privacy enhancing scheme allowing to remove parts of a signed document by a specified party for achieving data minimization without invalidating the respective signature.

    We mainly used semi-structures interviews and focus groups in our investigations. Our results yielded key HCI considerations as well as guidelines of different means for supporting the design of future solutions.

  • 537.
    Alaqra, Alaa
    et al.
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Fischer-Hübner, Simone
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Framner, Erik
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Enhancing Privacy Controls for Patients via a Selective Authentic Electronic Health Record Exchange Service: Qualitative Study of Perspectives by Medical Professionals and Patients2018In: Journal of Medical Internet Research, ISSN 1438-8871, E-ISSN 1438-8871, Vol. 20, no 12, article id e10954Article in journal (Refereed)
    Abstract [en]

    Background: Patients' privacy is regarded as essential for the patient-doctor relationship. One example of a privacy-enhancing technology for user-controlled data minimization on content level is a redactable signature. It enables users to redact personal information from signed documents while preserving the validity of the signature, and thus the authenticity of the document. In this study, we present end users' evaluations of a Cloud-based selective authentic electronic health record (EHR) exchange service (SAE-service) in an electronic health use case. In the use case scenario, patients were given control to redact specified information fields in their EHR, which were signed by their doctors with a redactable signature and transferred to them into a Cloud platform. They can then selectively disclose the remaining information in the EHR, which still bears the valid digital signature, to third parties of their choice. Objective: This study aimed to explore the perceptions, attitudes, and mental models concerning the SAE-service of 2 user roles: signers (medical professionals) and redactors (patients with different technical knowledge) in Germany and Sweden. Another objective was to elicit usability requirements for this service based on the analysis of our investigation. Methods: We chose empirical qualitative methods to address our research objective. Designs of mock-ups for the service were used as part of our user-centered design approach in our studies with test participants from Germany and Sweden. A total of 13 individual walk-throughs or interviews were conducted with medical staff to investigate the EHR signers' perspectives. Moreover, 5 group walk-throughs in focus groups sessions with (N=32) prospective patients with different technical knowledge to investigate redactor's perspective of EHR data redaction control were used. Results: We found that our study participants had correct mental models with regard to the redaction process. Users with some technical models lacked trust in the validity of the doctor's signature on the redacted documents. Main results to be considered are the requirements concerning the accountability of the patients' redactions and the design of redaction templates for guidance and control. Conclusions: For the SAE-service to be means for enhancing patient control and privacy, the diverse usability and trust factors of different user groups should be considered.

  • 538.
    Alaqra, Ala(a)
    et al.
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science.
    Fischer-Hübner, Simone
    Karlstad University, Division for Information Technology.
    Groß, Thomas
    Newcastle University, Newcastle, UK.
    Lorünser, Thomas
    Austrian Institute of Technology, Vienna, Austria.
    Slamanig, Daniel
    Graz University of Technology, Graz, Austria.
    Signatures for Privacy, Trust and Accountability in the Cloud: Applications and Requirements2015In: Privacy and Identity Management. Time for a Revolution?: 10th IFIP WG 9.2, 9.5, 9.6/11.7, 11.4, 11.6/SIG 9.2.2 International Summer School, Edinburgh, UK, August 16-21, 2015, Revised Selected Papers / [ed] David Aspinall, Jan Camenisch, Marit Hansen, Simone Fischer-Hübner, Charles Raab, Springer Publishing Company, 2015, Vol. 476, p. 79-96Conference paper (Refereed)
    Abstract [en]

    This paper summarises the results of a workshop at the IFIP Summer School 2015 introducing the EU Horizon 2020 project PRISMACLOUD, that is, Privacy and Security Maintaining Services in the Cloud. The contributions of this summary are three-fold. Firstly, it provides an overview to the PRISMACLOUD cryptographic tools and use-case scenarios that were presented as part of this workshop. Secondly, it distills the discussion results of parallel focus groups. Thirdly, it summarises a ``Deep Dive on Crypto'' session that offered technical information on the new tools. Overall, the workshop aimed at outlining application scenarios and eliciting end-user requirements for PRISMACLOUD.

  • 539.
    Alaqra, Alaa
    et al.
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science.
    Fischer-Hübner, Simone
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science.
    Pettersson, John
    Karlstad University, Faculty of Arts and Social Sciences (starting 2013), Centre for HumanIT.
    Wästlund, Erik
    Karlstad University, Faculty of Arts and Social Sciences (starting 2013), Service Research Center.
    Stakeholders’ Perspectives on Malleable Signatures in a Cloud-based eHealth Scenario2016In: Proceedings of the International Symposium on Human Aspects of Information Security & Assurance, 2016Conference paper (Refereed)
    Abstract [en]

    In this paper, we discuss end user requirements that we elicited for the use of malleable signatures in a Cloud-based eHealth scenario. The concept of a malleable signature, which is a privacy enhancing cryptographic scheme that enables the redaction of personal information from signed documents while preserving the validity of the signature, might be counter- intuitive to end users as its functionality does not correspond to the one of a traditional signature scheme. A qualitative study via a series of semi-structured interviews and focus groups has been conducted to understand stakeholders’ opinions and concerns in regards to the possible applications of malleable signatures in the eHealth area, where a medical record is first digitally signed by a doctor and later redacted by the patient in the cloud. Results from this study yielded user requirements such as the need for suitable metaphors and guidelines, usable templates, and clear redaction policies. 

  • 540.
    Alastair, Henry
    et al.
    Högskolan Väst.
    Sundqvist, Pia
    Karlstad University, Faculty of Arts and Social Sciences (starting 2013), Center for Language and Literature in Education. Karlstad University, Faculty of Arts and Social Sciences (starting 2013), Department of Language, Literature and Intercultural Studies.
    Korp, Helena
    Högskolan Väst.
    Elevers möten med engelska i och utanför skolan : Upprop till deltagande i forskningsprojektet Bridging the Gap2014In: LMS : Lingua, ISSN 0023-6330, no 4, p. 22-26Article in journal (Other (popular science, discussion, etc.))
  • 541.
    Alavian-Ghavanini, Ali
    et al.
    Karolinska Institutet.
    Lin, Ping-I
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Health Sciences (from 2013).
    Lind, P. Monica
    Uppsala University.
    Rimfors, Sabina Risen
    Karolinska Institutet.
    Lejonklou, Margareta Halin
    Uppsala University.
    Dunder, Linda
    Uppsala University.
    Tang, Mandy
    Karolinska Institutet.
    Lindh, Christian
    Lund University.
    Bornehag, Carl-Gustaf
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Health Sciences (from 2013). Icahn School of Medicine Mt Sinai, New York, USA.
    Rueegg, Joelle
    Karolinska Institutet.
    Prenatal Bisphenol A Exposure is Linked to Epigenetic Changes in Glutamate Receptor Subunit Gene Grin2b in Female Rats and Humans2018In: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 8, article id 11315Article in journal (Refereed)
    Abstract [en]

    Bisphenol A (BPA) exposure has been linked to neurodevelopmental disorders and to effects on epigenetic regulation, such as DNA methylation, at genes involved in brain function. High doses of BPA have been shown to change expression and regulation of one such gene, Grin2b, in mice. Yet, if such changes occur at relevant doses in animals and humans has not been addressed. We investigated if low-dose developmental BPA exposure affects DNA methylation and expression of Grin2b in brains of adult rats. Furthermore, we assessed associations between prenatal BPA exposure and Grin2b methylation in 7-year old children. We found that Grin2b mRNA expression was increased and DNA methylation decreased in female, but not in male rats. In humans, prenatal BPA exposure was associated with increased methylation levels in girls. Additionally, Iow APGAR scores, a predictor for increased risk for neurodevelopmental diseases, were associated with higher Grin2b methylation levels in girls. Thus, we could link developmental BPA exposure and Iow APGAR scores to changes in the epigenetic regulation of Grin2b, a gene important for neuronal function, in a sexual dimorphic fashion. Discrepancies in exact locations and directions of the DNA methylation change might reflect differences between species, analysed tissues, exposure level and/or timing.

  • 542.
    Alay, Özgü
    et al.
    Simula Research Laboratory, Norway.
    Lutu, Andra
    Simula Research Laboratory, Norway.
    García, Rafael
    IMDEA Networks Institute, Spain.
    Peón Quirós, Miguel
    IMDEA Networks Institute, Spain.
    Mancuso, Vincenzo
    IMDEA Networks Institute, Spain.
    Hirsch, Thomas
    Celerway AS, Norway.
    Dely, Tobias
    Celerway AS, Norway.
    Werme, Jonas
    Celerway AS, Norway.
    Evensen, Kristian
    Celerway AS, Norway.
    Hansen, Audun
    Celerway AS, Norway.
    Alfredsson, Stefan
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Karlsson, Jonas
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Brunström, Anna
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Safari Khatouni, Ali
    Politecnico di Torino.
    Mellia, Marco
    Politecnico di Torino.
    Ajmone Marsan, Marco
    Politecnico di Torino.
    Monno, Roberto
    Nextworks, Italy.
    Lønsethagen, Håkon
    Telenor R&D, Norway.
    MONROE, a distributed platform to measure and assess mobile broadband networks: demo2016In: Proceedings of the Tenth ACM International Workshop on Wireless Network Testbeds, Experimental Evaluation, and Characterization, New York, NY, USA: Association for Computing Machinery (ACM), 2016, p. 85-86Conference paper (Refereed)
    Abstract [en]

    This demo presents the MONROE distributed platform and how it can be used to implement measurement and assessment experiments with operational mobile broadband networks (MBBs). MONROE provides registered experimenters with open access to hundreds of nodes, distributed over several European countries and equipped with multiple MBB connections, and a backend system that collects the measurement results. Experiments are scheduled through a user-friendly web client, with no need to directly access the nodes. The platform further embeds tools for real-time traffic flow analysis and a powerful visualization tool.

  • 543.
    Alay, Özgü
    et al.
    Simula Research Laboratory, Norway.
    Lutu, Andra
    Simula Research Laboratory, Norway.
    Peón-Quirós, Miguel
    IMDEA Networks Institute, Spain.
    Mancuso, Vincenzo
    IMDEA Networks Institute, Spain.
    Hirsch, Thomas
    Celerway Communications, Norway.
    Evensen, Kristian
    Celerway Communications, Norway.
    Hansen, Audun
    Celerway Communications, Norway.
    Alfredsson, Stefan
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Karlsson, Jonas
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Brunström, Anna
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Safari Khatouni, Ali
    Politecnico di Torino, Italy.
    Mellia, Marco
    Politecnico di Torino, Italy.
    Ajmone Marsan, Marco
    IMDEA Networks Institute, Spain and Politecnico di Torino, Italy.
    Experience: An open platform for experimentation with commercial mobile broadband networks2017In: MobiCom '17 Proceedings of the 23rd Annual International Conference on Mobile Computing and Networking, New York: ACM Digital Library, 2017, p. 70-78Conference paper (Refereed)
    Abstract [en]

    Open experimentation with operational Mobile Broadband (MBB) networks in the wild is currently a fundamental requirement of the research community in its endeavor to address the need of innovative solutions for mobile communications. Even more, there is a strong need for objective data about stability and performance of MBB (e.g., 3G/4G) networks, and for tools that rigorously and scientifically assess their status. In this paper, we introduce the MONROE measurement platform: an open access and flexible hardware-based platform for measurements and custom experimentation on operational MBB networks. The MONROE platform enables accurate, realistic and meaningful assessment of the performance and reliability of 11 MBB networks in Europe. We report on our experience designing, implementing and testing the solution we propose for the platform. We detail the challenges we overcame while building and testing the MONROE testbed and argue our design and implementation choices accordingly. We describe and exemplify the capabilities of the platform and the wide variety of experiments that external users already perform using the system

  • 544.
    Alay, Özgü
    et al.
    Simula Research Laboratory, Norway.
    Lutu, Andra
    Simula Research Laboratory, Norway.
    Rafael, García
    IMDEA Networks Institute, Spain.
    Peón Quirós, Miguel
    IMDEA Networks Institute, Spain.
    Mancuso, Vincenzo
    IMDEA Networks Institute, Spain.
    Hirsch, Thomas
    Celerway AS, Norway.
    Tobias, Dély
    Celerway AS, Norway.
    Werme, Jonas
    Celerway AS, Norway.
    Evensen, Kristian
    Celerway AS, Norway.
    Fosselie Hansen, Audun
    Celerway AS, Norway.
    Alfredsson, Stefan
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science.
    Karlsson, Jonas
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science.
    Brunstrom, Anna
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science.
    Safari Khatouni, Ali
    Politecnico di Torino, Italy.
    Mellia, Marco
    Politecnico di Torino, Italy.
    Ajmone Marsan, Marco
    Politecnico di Torino & IMDEA Networks, Italy.
    Monno, Roberto
    Nextworks, Italy.
    Lønsethagen, Håkon
    Telenor R&D, Norway.
    Measuring and Assessing Mobile Broadband Networks with MONROE2016In: 2016 IEEE International Symposium on a World of Wireless, Mobile, and Multimedia Networks (WoWMoM), Red Hook: IEEE conference proceedings, 2016Conference paper (Refereed)
    Abstract [en]

    Mobile broadband (MBB) networks underpin numerous vital operations of the society and are arguably becoming the most important piece of the communications infrastructure. In this demo paper, our goal is to showcase the potential of a novel multi-homed MBB platform for measuring, monitoring and assessing the performance of MBB services in an objective manner. Our platform, MONROE, is composed of hundreds of nodes scattered over four European countries and a backend system that collects the measurement results. Through a user-friendly web client, the experimenters can schedule and deploy their experiments. The platform further embeds traffic analysis tools for real-time traffic flow analysis and a powerful visualization tool.

  • 545.
    Al-Azzawi, Tahreer
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Health Sciences.
    En undersökning av antibiotikaförskrivning till patienter med okomplicerad faryngotonsillit inom primärvården.: En enkätundersökning på en vårdcentral i Värmland.2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 546. Albansson, Sofia
    Barn med särskilda behov - en studie i Sydafrika2006Independent thesis Basic level (professional degree)Student thesis
    Abstract [sv]

    Jag fick möjligheten att resa till Sydafrika och kåkstaden Lingelihle i fyra veckor. Syftet med resan var att insamla material till mitt examensarbete och ta del av en ny kultur och skolmiljö. Innan jag reste bestämde jag mig för att skriva om elever med särskilda behov och frågeställningen jag hade var: Hur kan man arbeta med elever med särskilda behov i en skola i Sydafrika? För att svara på mina frågeställningar har jag använt mig av relevant litteratur, Internet, intervjuer och observationer. De jag intervjuade var två lärare och en rektor på skolan jag besökte. Resultatet av intervjuerna visar hur man i en annan kultur kan ta hand om barn med särskilda behov. Det jag kommit fram till genom intervjuerna är att skolan har mycket begränsade resurser när det gäller dessa barn, men de tar tillvara på de resurser de har och hjälper dem så gott de kan utifrån deras förutsättningar.

  • 547.
    Albemo, Rebecca
    et al.
    Karlstad University, Faculty of Arts and Social Sciences (starting 2013), Department of Geography, Media and Communication (from 2013).
    Wilhelmsson, Nils
    Karlstad University, Faculty of Arts and Social Sciences (starting 2013), Department of Geography, Media and Communication (from 2013).
    Forsberg, Leo
    Karlstad University, Faculty of Arts and Social Sciences (starting 2013), Department of Geography, Media and Communication (from 2013).
    Sanning eller sensation?: En kvalitativ jämförelse av SVT Nyheter och Aftonbladets rapportering av mordfall2018Student paper second term, 5 credits / 7,5 HE creditsStudent thesis
    Abstract [en]

    The purpose of this study is to investigate how reporting of murder cases differs from SVT Nyheter and Aftonbladet's web reporting. To answer our question, we have conducted a qualitative text analysis with elements of critical discourse analysis and framing theory, on two articles from each news service. The texts of the articles have been examined with focus on word choice and linguistic actions. We have analyzed the underlying meanings of the text, how emotive words are used and how victims, perpetrators and potential secondary actors have been framed in the reporting.

    We have chosen the Kim Wall case as our empirical material. It contains several spectacular details, and both the perpetrator and the victim are known in the past. This helps the reporting to be formed in a variety of ways, making our research particularly interesting.

    Previous research shows that journalism tends to become more entertaining and dramatized, because sensationalism has a prominent role in journalism. At the same time, crime and journalism are considered to be an inseparable couple, which together form a separate area of coverage in journalism.

    The result of our analysis shows that there are clear differences in the reporting between public service and commercial evening paper. SVT Nyheter is more factual in their reporting, and relates only to facts, while Aftonbladet builds their articles more like a story with connections to popular culture. The analysis also suggests that both news services assign a significantly greater focus to the perpetrator than the victim.

  • 548.
    Alberg, Stefan
    Karlstad University, Faculty of Arts and Social Sciences (starting 2013).
    Utredningsarbete och åtgärdsprogram: En gruppintervjustudie baserad på tre pedagogers tankar och känslor kring processen att utföra utredningsarbete och formulera åtgärdsprogram2013Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
  • 549. Albert, Lars
    et al.
    Fredriksson, Odd
    Karlstad University, Faculty of Economic Sciences, Communication and IT, Department of Information Systems and Project Management.
    Effektivisering av golvbranschen. En studie av struktur och lönsamhet samt några idéer till förändringar1986Report (Refereed)
  • 550. Albertsson, A.
    et al.
    Johansson-Hidén, Birgitta
    Karlstad University, Faculty of Economic Sciences, Communication and IT, Department of Psychology. Karlstad University, Faculty of Economic Sciences, Communication and IT, Centre for HumanIT.
    Värmlandskliniken. Utvecklingsansvar åt alla1991Report (Other academic)
891011121314 501 - 550 of 46746
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