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  • 46701.
    Wu, Hao
    et al.
    The University of Sydney, Sydney, Australia.
    Taheri, Javid
    The University of Sydney, Australia.
    Zomaya, Albert
    The University of Sydney, Sydney, Australia.
    B-Alarm: An Entropy Based Burst Traffic Prediction Approach for Ethernet Switches in Data Centers2013In: High Performance Computing and Communications & 2013 IEEE International Conference on Embedded and Ubiquitous Computing (HPCC_EUC), 2013 IEEE 10th International Conference on, IEEE conference proceedings, 2013Conference paper (Refereed)
  • 46702.
    Wu, Xiaotong
    et al.
    Karlstad University, Faculty of Economic Sciences, Communication and IT.
    Luo, Zhe
    Karlstad University, Faculty of Economic Sciences, Communication and IT.
     Analysis on Opportunities and Challenges of Chinese Medical Device Industry under New Health Care Reform:  Reference of Sweden, USA and UK2010Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Purpose and Execution –The purpose of this paper is to seek feasible suggestions and recommendations to the Chinese medical device industry under the new current market situation—Chinese health care system reform. In order to achieve this aim, we will start with introducing the background of current status of related issues. The next part will be the preparation of further analysis, which contains the theory and descriptions of the health care system reform histories of China, Sweden, the USA and UK. We will consequent present the environmental potential influential aspects. The main discussion will take place around medical device market analysis, together with three representative company case studies. After identifying the opportunities and challenges of the industry, we will draw the conclusions which are the recommendations for Chinese health care industry and also some suggestions for the Chinese government.

    Design/Methodology/Approach – To explore these issues, besides literature reviews on market analysis (five forces, SWOT analysis), this paper applies generic competitive strategy, value-based service and service innovation as well. In addition, it also illustrates with 3 mini cases. We acquired both secondary data from related databases and primary data through questionnaires.

    Limitation – Due to the restricted access to the specific database, the acquired information is limited to analyze the paper. Furthermore, according to the fact that the data we obtained is mostly on the basis of the whole medical device industry and it is quite difficult to be classified into particular parts, we decided to limit our research to the medical device industry that caters to both medical equipments and disposable tools when doing the analysis. In addition, since the design of questionnaire includes open questions, the research quality is heavily dependent on the individual skills of the researcher.

    Findings – The new health care system reform will definitely boost the growth of medical device industry, but also create fiercer competition. Chinese Medical device companies need to enhance abilities of marketing, research and development, and aim at meeting customer needs to exploit new profit alternatives.

  • 46703.
    Wuerflinger, Sabrina
    Karlstad University, Faculty of Health, Science and Technology (starting 2013).
    Risk Analysis for eHealth Cloud Services2013Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 46704. Wulff, Felix
    Förbättring av flöde och ökad produktion: Förändringar med syfte att möta en tillväxt2016Independent thesis Basic level (university diploma), 15 credits / 22,5 HE creditsStudent thesis
    Abstract [en]

    The thesis has been performed on AnVa Polytech AB, which mainly produces injection molded rubber parts. The thesis has been divided into two main headings, as required by the company's production in order to meet a desired growth and how the company can create efficient flows of production.

    AnVa Polytech AB has a growth target of 10% per year. This thesis has studied the difference it does in production volume. Since then, the equipment in the production surveyed by the current capacity and future capacity have been investigated. The result is that changes in the form of equipment and especially injection molding machines that are required.

    The company works for lean as a stated business strategy. Flow Efficiency Flow is a central part of Lean. The second part of the thesis has therefore addressed the AnVa Polytech AB may go further in combating the efficiency flow. It includes a value stream analysis with accompanying spaghetti diagram and PICK-chart. An analysis of the optimal flow principle, the company has implemented. The work efficiency against flow, together with the analysis of the equipment in the production resulted in a factory layout.

    The thesis explains what AnVa Polytech AB should do next five years.

  • 46705.
    Wurm, Matilda
    et al.
    Örebro universitet.
    Anniko, Malin
    Örebro universitet.
    Tillfors, Maria
    Karlstad University, Faculty of Arts and Social Sciences (starting 2013), Department of Social and Psychological Studies (from 2013).
    Flink, Ida
    Örebro universitet.
    Boersma, Katja
    Örebro universitet.
    Musculoskeletal pain in early adolescence: A longitudinal examination of pain prevalence and the role of peer-related stress, worry, and gender2018In: Journal of Psychosomatic Research, ISSN 0022-3999, E-ISSN 1879-1360, Vol. 111, p. 76-82Article in journal (Refereed)
    Abstract [en]

    Objective: Adolescence is a time of change during which several health problems, such as pain problems, increase. Psychosocial mechanisms involved in this development, such as interpersonal stressors and worry, are still understudied, especially longitudinally. The first aim of this study was to investigate the prevalence of musculoskeletal pain in Swedish adolescents between the ages 13 and 15 using pain grades. The second aim was to study the role of peer-related stress, worry, and gender in the development of musculoskeletal pain problems over time. Methods: Adolescents in 18 public schools were followed from 7th to 9th grade (N = 1181) and answered self-report questionnaires at three time points. Prevalence was assessed at all three time points and a moderated mediation analysis investigated if peer-related stress in 7th grade predicted musculoskeletal pain two years later and if this relationship was mediated by worry in 8th grade. Gender was entered as a moderator. Results: In 7th grade, 8.4% of adolescents reported musculoskeletal pain with some functional impairment. In 8th and 9th grade around 10% of adolescents reported musculoskeletal pain problems, with girls reporting a higher prevalence than boys. Peer-related stress in 7th grade predicted musculoskeletal pain problems in 9th grade, mediated by worry in 8th grade. The mediation was moderated by gender: peer-related stress predicted worry for girls, but not for boys. Conclusion: Peer-related stress and worry seem to be involved in the development of pain over time. These factors should therefore be targeted in preventative interventions and during treatment.

  • 46706.
    Wurm, Matilda
    et al.
    Örebro universitet, Institutionen för juridik, psykologi och socialt arbete.
    Edlund, Sara
    Örebro universitet, Institutionen för juridik, psykologi och socialt arbete.
    Boersma, Katja
    Örebro universitet, Institutionen för juridik, psykologi och socialt arbete.
    Tillfors, Maria
    Örebro universitet, Institutionen för juridik, psykologi och socialt arbete.
    Comorbi social anxiety and pain: Relationship with transdiagnostic psychological processes2013Conference paper (Other academic)
  • 46707.
    Wurm, Matilda
    et al.
    Örebro universitet, Institutionen för juridik, psykologi och socialt arbete.
    Edlund, Sara
    Örebro universitet, Institutionen för juridik, psykologi och socialt arbete.
    Tillfors, Maria
    Örebro universitet, Institutionen för juridik, psykologi och socialt arbete.
    Boersma, Katja
    Örebro universitet, Institutionen för juridik, psykologi och socialt arbete.
    Characteristics and consequences of the co-occurence between social anxiety and pain-related fear in chronic pain patients receiving multimodal pain rehabilitation treatment2016In: Scandinavian Journal of Pain, ISSN 1877-8860, E-ISSN 1877-8879, Vol. 12, p. 45-52Article in journal (Refereed)
    Abstract [en]

    Background and aims: Chronic pain problems are related to specific pain related fears and maladaptive pain-coping but also commonly co-occur with other anxiety problems. Shared emotional vulnerabil-ity factors may explain this comorbidity and may influence treatment outcome. Indeed, pain patients going through multimodal pain treatment are a heterogeneous group and treatment results vary. One understudied anxiety disorder co-occurring with pain is social anxiety. This may be relevant as many pain-related challenges are situated in social contexts. The aim of this study is to investigate the occur-rence of subgroups with differential patterns of social anxiety and pain related fear in a sample of chronic pain patients who receive multimodal pain treatment. The aim is also to study the characteristics of these potential subgroups and the consequences of different patterns of social anxiety and pain related fear.

    Methods: 180 patients with chronic musculoskeletal pain answered questionnaires before and after a multimodal pain treatment in a hospital rehabilitation setting in middle Sweden. A cluster analysis using pre-treatment scores on the Social Phobia Screening Questionnaire and the Tampa Scale of Kinesiophobia was performed. Subgroups were thereafter validated and compared on impairment due to social anxi-ety, pain catastrophizing, anxiety, and depression. Moreover, subgroups were described and compared on vulnerability factors (anxiety sensitivity, negative affect) and outcome factors (pain intensity, pain interference, and return to work self-efficacy).

    Results: Four distinct clusters emerged: (1) low scores, (2) pain-related fear only, (3) social concern only, and (4) high social anxiety and pain-related fear. Patients high on social anxiety and pain-related fear had significantly higher levels of anxiety sensitivity, negative affect, and higher general emotional symptomatology. They also had remaining problems posttreatment.

    Conclusions: A subgroup of patients with clinical levels of social anxiety has suboptimal rehabilitation results, with residual emotional problems and high levels of emotional vulnerability.

    Implications: These patients may be in need of additional treatment efforts that are not being met today. To prevent insufficient treatment results and prolonged work disability, these patients need to be detected during screening and may benefit from pain treatment that takes their emotional problems into account.

  • 46708.
    Wurm, Matilda
    et al.
    Örebro universitet, Institutionen för juridik, psykologi och socialt arbete.
    Klein Strandberg, Ester
    Örebro universitet, Institutionen för juridik, psykologi och socialt arbete.
    Lorenz, Caroline
    Buhrman, Monica
    Uppsala University, Uppsala, Sweden.
    Holländare, Fredrik
    Örebro universitet, Institutionen för medicinska vetenskaper.
    Tillfors, Maria
    Örebro universitet, Institutionen för juridik, psykologi och socialt arbete.
    Boersma, Katja
    Örebro universitet, Institutionen för juridik, psykologi och socialt arbete.
    Chronic pain and emotional problems: A replicated single case study of an internet based therapist guided treatment based on CBT principles and the Unified Protocol of transdiagnostic treatments2016Conference paper (Other academic)
  • 46709. Wurtz, Albrecht
    Boundary states in conformal field theory2004Licentiate thesis, monograph (Other academic)
    Abstract [en]

    This licentiate thesis discusses boundary states in conformal field theories related to WZW (Wess-Zumino-Witten) models. These models are used as building blocks to describe the compact extra dimensions of certain string theories. The focus of the first chapter is to give a flavor of conformal field theory. The second chapter treats WZW- and related models. Such models can be described from a geometric perspective, or from an algebraic perspective. The discussion in this text is mostly from the latter perspective, but some attention is being paid to the relation between the two approaches. The third and final chapter deals with boundary states in WZW- and related models. The physical application aimed at is the description of D-branes in string theory, subsets of space-time to which string end points are confined. The relation between the concept of D-branes and the concept of boundary states is not direct, as discussed in the beginning of chapter 3. It turns out that the boundary states, if interpreted in geometric language as D-branes, in many cases are ''smeared''. This was known already to Felder et al, together with the fact that 0- dimensional branes in WZW models do not exist. The first new result in this thesis is a concrete argument for the latter statement. An important class of models that are related to WZW models are the coset models. These are introduced in chapter 2, and some novel results on the geometric interpretation of their boundary states as D- branes can be found in chapter 3. Apart from the coset models, there are also geometric orbifold models related to WZW- models. Concrete examples of such models are the Lens space models, on which an article was published in collaboration with Pedro Bordalo. Results from this paper can be found in the final two sections of chapter 3.

  • 46710.
    Wurtz, Albrecht
    Karlstad University, Faculty of Technology and Science.
    Conformal Field Theory and D-branes2006Doctoral thesis, monograph (Other scientific)
    Abstract [en]

    The main topic of this doctoral thesis is D-branes in string theory, expressed in the language of conformal field theory. The purpose of string theory is to describe the elementary particles and the fundamental interactions of nature, including gravitation as a quantum theory. String theory has not yet reached the status to make falsifiable predictions, thus it is not certain that string theory has any direct relevance to physics. On the other hand, string theory related research has led to progress in mathematics.

    We begin with a short introduction to conformal field theory and some of its applications to string theory. We also introduce vertex algebras and discuss their relevance to conformal field theory. Some classes of conformal field theories are introduced, and we discuss the relevant vertex algebras, as well as their interpretation in terms of string theory.

    In string theory, a D-brane specifies where the endpoint of the string lives. Many aspects of string theory can be described in terms of a conformal field theory, which is a field theory that lives on a two-dimensional space. The conformal field theory counterpart of a D-brane is a boundary state, which in some cases has a natural interpretation as constraining the string end point. The main focus of this thesis is on the interpretation of boundary states in terms of D-branes in curved target spaces.

  • 46711.
    Wyaar, Bahirullah
    Karlstad University.
    Assessment of Learning Achievements of School students in Afghanistan: Reading literacy competencies of grade nine students in local and international items compared to PISA Bahirullah Wyaar2013Independent thesis Advanced level (degree of Master (One Year)), 40 credits / 60 HE creditsStudent thesis
    Abstract [en]

    This is a research study trying to find out the competencies of Afghan students in reading literacy at the end of grade nine i.e. compulsory educations in the country as well as to explore the responses of Afghan students on internationally developed and tested reading literacy items.

    This study is based on a field research through utilizing two test items from Program for International Assessment (PISA) and two items developed locally as written test. A total number of 338 school students in different districts of Kabul city participated in this research. The study also tried to look for differences among male and female, public and private and a comparison based on the medium of instruction as well as the result related to student factors e.g. parents education.

    The major findings of the study indicate a very low performance level of Afghan students in international test items. As reported the average score of the Afghan students participated in this study in PISA items is around 3 out of 10. If this test had been a final grade examination hardly any student could succeed to pass.

    Although, average score of students in locally developed test items goes beyond 5, but still indicate poor results. Making comparisons average score of male and female students in sampled schools of Kabul city shows that boys are slightly better than girls in PISA items while the result in local items is totally different and reveals better performance of girls.

    In additions the students with instruction language as Pashto did perform worse than those students with medium of instruction Dari, might be caused by weak teaching or low professional level of teachers in such schools.

    The classes with Pashto medium of language is established in various schools but this research shows lower performance level of students in such classes compared to classes with Dari medium of instruction. This could be due to limited availability of qualified Pashto speaking teachers as well as proper resources.

    Overall, the findings area is alarming when it comes to the low level of reading competencies of student compared to international averages. More likely not only weak teaching but also less pedagogically composed textbook may play an important role in these issues.

  • 46712.
    Wysujack, Klaus
    et al.
    Karlstad University, Faculty of Social and Life Sciences, Department of Biology.
    Greenberg, Larry
    Karlstad University, Faculty of Social and Life Sciences, Department of Biology.
    Bergman, Eva
    Karlstad University, Faculty of Social and Life Sciences, Department of Biology.
    Olsson, Ivan
    Karlstad University, Faculty of Social and Life Sciences, Department of Biology.
    The role of the environment in partial migration: food availability affects the adoption of a migratory tactic in brown trout Salmo trutta2009In: Ecology of Freshwater Fish, ISSN 0906-6691, E-ISSN 1600-0633, Vol. 18, no 1, p. 52-59Article in journal (Refereed)
    Abstract [en]

    Alternative reproductive tactics are commonly reported for salmonids (Pisces) and typically involve large migratory and small resident individuals. Variation in migratory tendency should reflect the different benefits and costs that the two different phenotypes face with regard to fitness. Therefore, the effect of food availability on the adoption of a migratory tactic in brown trout was investigated. Fifty trout were placed in each of 12 tanks and fed at three different levels. Growth-related variables were measured regularly, and at the end of the experiment, the proportion of migrants and residents was recorded. Low food availability led to increased numbers of migratory fish. The expected sex-bias was also present, with a lower percentage of resident females than resident males. As all fish originated from the same gene pool, the changing proportions of the migratory tactics can be classified as phenotypic plasticity. The study provides evidence that the different phenotypes reflect alternative tactics within a conditional strategy. Some differences in growth-related variables were present between the sexes, and a very pronounced difference in condition factor was found between resident and migratory males, but not in females. Thus, the results provide evidence that different selective forces may be acting on the sexes.

  • 46713.
    Wägar, Karolina
    et al.
    Hanken School of Economics, Vaasa, Finland.
    Roos, Inger
    Karlstad University, Faculty of Arts and Social Sciences (starting 2013), Service Research Center. Karlstad University, Faculty of Economic Sciences, Communication and IT, Department of Business Administration.
    Ravald, Annika
    Hanken School of Economics, Vaasa, Finland.
    Edvardsson, Bo
    Karlstad University, Faculty of Economic Sciences, Communication and IT, Service Research Center. Karlstad University, Faculty of Arts and Social Sciences (starting 2013), Karlstad Business School.
    My Customers Are in My Blind Spot: Are They Changing and I cannot See It?2012In: Journal of Service Research, ISSN 1094-6705, E-ISSN 1552-7379, Vol. 15, no 2, p. 150-165Article in journal (Refereed)
    Abstract [en]

    It is clearly recognized that service providers often have an incomplete and fragmentary understanding of their customers' relationship behaviors. Although it is clear that this incomplete understanding has serious implications for customer relationship management, and might even constitute a strategic risk, there have been no explicit attempts to analyze the phenomenon. The authors therefore introduce and develop the concept of the blind spot as a metaphor referring to situations where a service provider's visual field is obscured. The authors examine the phenomenon of blind spots in a temporal and a relational context, determine their consequences, and outline the implications for customer relationship management. A number of blind spot scenarios are presented in order to illustrate how blind spots obstruct the service provider's ability to make correct interpretations of customer relationships, and thereby also correct estimations of relationship stability. The conceptualization of blind spots as outlined in this article sheds light on the underlying mechanisms that drive customer behavior in terms of relationship stability and hence offers a deeper understanding of the dynamic nature of customer relationships. From a managerial point of view, proper monitoring systems and routines for analyzing relevant customer information play essential roles in understanding and managing blind spots.

  • 46714. Wäger, K
    et al.
    Roos, Inger
    Karlstad University, Faculty of Economic Sciences, Communication and IT, Service Research Center. Karlstad University, Faculty of Economic Sciences, Communication and IT, The Service and Market Oriented Transport Research Group. Karlstad University, Faculty of Economic Sciences, Communication and IT, Department of Business Administration.
    Ravald, A
    Edvardsson, Bo
    Karlstad University, Faculty of Economic Sciences, Communication and IT, Service Research Center. Karlstad University, Faculty of Economic Sciences, Communication and IT, Department of Business Administration. Karlstad University, Faculty of Economic Sciences, Communication and IT, The Service and Market Oriented Transport Research Group.
    Introducing the concepts of asymmetry and blind spots into service research to better understand relaionship behaviors.2011Conference paper (Refereed)
  • 46715.
    Wäne, Gerd
    Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering.
    Fibre surface properties of kraft pulp: The influence of wood raw material, bleaching and storage2009Licentiate thesis, comprehensive summary (Other academic)
    Abstract [en]

    The aim of this thesis was to study the fibre surface properties of Birch (Betula ssp.), Eucalyptus (E. urograndis and E. globulus) and Spruce (Picea Abies) pulps bleached using two different methods: ECF (Elementary Chlorine Free) and TCF (Totally Chlorine Free). The hardwood pulps were subjected to a hot acidic stage prior to ECF bleaching in order to remove hexenuronic acid. The effect of prolonged storage (ageing) on the fibre surface properties was studied for all of the pulps.

    The characteristics of the fibre surfaces were determined by measuring the dynamic contact angle of single fibres (DCA) and by using Electron Spectroscopy for Chemical Analysis (ESCA) and Time of Flight Secondary Ion Mass Spectroscopy (ToF-SIMS). The correlation between the fibre surface properties and the sizing efficiency of the hardwood pulps were evaluated by measuring the amount of alkyl ketene dimer (AKD) needed to reach a certain water absorption level(measured as Cobb60).

    The birch pulp was more hydrophilic than the eucalyptus pulps, thus requiring more AKD to reach a certain water absorption value, and also had a lower DCA. The introduction of a hot acidic stage (A stage) in the ECF bleaching sequence applied to the hardwood pulps (i.e. A/D(EP)DD versus D(EP)DD) lowered, as expected, the total fibre charge due to the removal of hexenuronic acids groups (HexA). According to the DCA measurements all of the pulps became more hydrophilic after the A/D(EP)DD bleaching than after the D(EP)DD bleaching sequence. The sizing ability of the pulps, measured as the AKD demand to a certain Cobb60 value, showed that the AKD demand was more or less the same for the eucalyptus pulps regardless of the bleaching sequence used. The birch pulp, on the other hand, required somewhat less AKD in the A/D(EP)DD sequence than in the D(EP)DD.

    The AKD demand to a certain Cobb60 value decreased further for the bleached birch and E. globulus pulps after ageing due to an increase in the fibre surface hydrophobicity. ESCA analysis revealed an increase of surface extractives on the pulps after ageing, which was also supported by ToF-SIMS analysis. It was concluded that there was an increase in fatty acids, fatty acid salts and possibly even sterols and glycerides on the fibre surfaces due to ageing. A migration of these components from the interior of the fibre wall to the fibre surface during ageing was verified in this study.

    The TCF and ECF bleached softwood pulps also showed differences in their fibre surface properties that were tangible and thereby measurable. The dynamic contact angle was highest for the TCF bleached softwood fibres, i.e. these were more hydrophobic. Although changes caused by ageing were much more pronounced for the ECF fibres, all pulps became more hydrophobic upon ageing.

    The hydrophobicity of pulp fibres can be determined using DCA, which is a rather rapid and economically viable analysis. Using this information, a paper/board mill can base its sizing strategy on scientific findings.

    The ageing effects seen on the fibre surfaces in the form of the migration of extractives might be an important parameter from an industrial point of view, especially when pulps are stored and/or transported for a long time period. Nowadays it is quite common for pulps to be shipped around the world and subjected to warm and humid conditions. It is therefore probable that the properties of the pulp change in such a way that the papermaking process requires adjustment.

  • 46716.
    Wäne, Gerd
    et al.
    Karlstad University, Faculty of Technology and Science.
    Basta, Jiri
    Eka Chemicals AB, Bohus, Sweden.
    Järnström, Lars
    Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering.
    Germgård, Ulf
    Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering.
    A comparison of the surface properties of ECF and TCF bleached softwood kraft pulp2007In: Appita journal, ISSN 1038-6807, Vol. 60, no 5, p. 396-Article in journal (Refereed)
  • 46717.
    Wäne, Gerd
    et al.
    Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering.
    Germgård, Ulf
    Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering.
    Aspects on the AKD demand of hardwood kraft pulps before and after ageing2009In: Appita journal, ISSN 1038-6807, Vol. 62, no 2, p. 123-129Article in journal (Refereed)
  • 46718.
    Wäne, Gerd
    et al.
    Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering.
    Germgård, Ulf
    Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering.
    Pulp and Fibre surface properties of bleached hardwood Kraft Pulps: Influence of an A-stage2009In: Paperi ja puu, ISSN 0031-1243, Vol. 91, no 7-8, p. 58-64Article in journal (Refereed)
    Abstract [en]

    Hexenuronic acids in kraft pulps increase the demand for bleaching chemicals and cause brightness reversion of the bleached pulps during storage. They can, however, be removed by the use of hot acid treatments in e.g. the bleaching sequence, which is commonly used for eucalyptus in the pulp industry today. In this work three kraft hardwood pulps (two eucalyptus and one birch) were selected to study the influence on the surface properties of the pulps of a hot acidic stage (A stage) introduced prior to a standard ECF bleaching sequence. The sequences compared were A/D(EP)DD and D(EP)DD. The results were compared before and after the pulps were aged at room temperature for about eight months.

  • 46719.
    Wänerstam, Magdalena
    Karlstad University, Faculty of Social and Life Sciences.
    Avhopparnas problematik: En studie om avhopp, sekter, hjälp och symbolisk interaktionism2006Independent thesis Basic level (degree of Bachelor), 10 points / 15 hpStudent thesis
    Abstract [sv]

    SAMMANFATTNING

    Avhoppare är oftast utsatta och ensamma personer. De har oftast inga vänner eftersom vännerna i den före detta sekten inte längre vill veta av de och de lider oftast av psykiska och/eller fysiska problem eftersom avhoppet i sig ger upphov till en mängd frågor såsom ”Vart ska jag ta vägen?” och ”Vad ska jag göra med mitt liv?” De avhoppare som oftast mår sämst är de personer som vuxit upp i en sekt eftersom de inte har några referensramar, de vet inte hur livet utanför sekten fungerar. En av mina intervjupersoner kallar sig för ”praoelev i livet” eftersom hon lär sig nya saker varje dag om hur samhället fungerar, saker som vi andra tar för givet. En person som går med i en sekt frivilligt har känt på livet utanför och på så sätt vet vad samhället har att erbjuda och vad sekten tar avstånd ifrån.

    En avhoppare kopplar jag samman med den symboliska interaktionismens syn på avvikare. En avvikare är enligt teorin en person som avviker från samhällets normer och värderingar och har man en gång blivit en avvikare är det svårt att ta sig över tröskeln till det normala. Detta stämmer väl in på vad avhopparna själva känner men avhopparna kan få hjälp med att ta steget över tröskeln men det beror helt och hållet på resurserna hos avhopparföreningarna. En av föreningarna, Hjälpkällan, har nyligen startat ett projekt som de kallar för ”Professionell rådgivning” där avhoppare hjälper avhoppare. Men en av de viktigaste slutsatserna jag dragit av denna uppsats är att det inte är avhopparföreningarna som ska erbjuda hjälp utan det är samhället men samhället blundar och säger att avhopparna inte behöver någon specialhjälp men allt tyder på att det är just specialhjälp som behövs för att hjälpa dessa människor.

    Den här uppsatsen i sociologi c handlar om avhoppare från destruktiva sekter, med ett religiöst budskap, och syftet är att beskriva den personliga problematiken som avhopparna från dessa sekter går igenom och hur problemen kan lösas. Problematiken kommer jag sedan att koppla samman med teorin, symbolisk interaktionism. Som avgränsning har jag valt att enbart studera Sverige och de avhoppare som mår dåligt av sitt avhopp.

    Som metod har jag använt mig av en litteraturstudie med två intervjuer och en mejlenkät. Med litteraturstudie avser jag här att jämföra, tolka och analysera litteratur, hemsidor och intervjusvar.

  • 46720.
    Wänerstam, Magdalena
    Karlstad University, Faculty of Economic Sciences, Communication and IT.
    Friidrottare kontra fotbollsspelare: En studie om attityder, optimism och mål.2008Independent thesis Basic level (degree of Bachelor), 15 credits / 22,5 HE creditsStudent thesis
    Abstract [sv]

    Syftet med den här studien har varit att undersöka lagidrottare och idrottsutövare som utför sin idrott individuellt och deras attityder gentemot olika typer av mål, samt att undersöka om det fanns något samband mellan attityden till målen och optimism. Som avgränsning valdes friidrottare och fotbollsspelare på elitnivå, och sex olika typer av mål. Studien som gjordes var en enkätstudie som analyserades med hjälp av SPSS 15.0. Resultatet visade att det fanns skillnader mellan fotbollsspelarna och friidrottarnas attityder gentemot målen, men att det inte gick att urskilja några mönster som att fotbollspelarna skulle vara mer resultatinriktade. Studien visade även att friidrottarna var mer optimistiska än fotbollsspelarna i avseende på LOT, men att både grupperna hade ett högt medelvärde på testet. Det visade sig även att det inte fanns något samband mellan idrotterna, attityden till målen och optimism.

  • 46721.
    Wänerstam, Magdalena
    Karlstad University, Faculty of Social and Life Sciences, Department of Health and Environmental Sciences.
    Statens haverikommissions rekommendationer: i samband med branden i Göteborg 19982012Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Syftet med den här magisteruppsatsen var att undersöka myndigheters förhållningssätt till Statens haverikommissions (SHK) begrepp rekommendationer. Som avgränsning har rekommendationerna i Rapport RO 2001:02 O-07/98 Brand på Herkulesgatan i Göteborg, O län, den 29-30 oktober 1998 analyserats.

    Metoden som har använts för att uppnå syftet var konventionell innehållsanalys som är en form av textanalys. De texttyper som har analyserats var myndighetsdokument, artiklar, böcker, rapporter, mejl och personligt möte. Verbal information har transkriberats till textform.

    Slutsatserna blev att SHK:s utredningar från början till slut var lagstyrda så myndigheterna som deltog i undersökningen ansåg sig inte kunna ha ett subjektivt förhållningssätt till begreppet rekommendation utan de ville vara laglydiga och fullfölja sina respektive regeringsuppdrag. Det blev även tydligt att SHK är en viktig aktör när det gäller områdena samhällssäkerhet och olycksprevention då rekommendationerna kan användas för lag- och regelskapande som i sin tur kan leda till förbättrad samhällssäkerhet. SHK:s utredningar är även uppbyggda kring ett lärande perspektiv som innebär att man inte vill leta syndabockar utan lära sig av olyckan så att den inte inträffar igen. I myndigheternas svar på rekommendationerna var det tre teman som synliggjordes och dessa teman var ökad kunskap, synkronisering och samverkan. Exempel kunde vara ökad kunskap om samhällets risker, synkronisering av begrepp och terminologi på en olycksplats och samverkan aktörer emellan. Alla samhällsnivåer fanns även representerade i myndigheternas svar, allt från den enskilda individen till riksdag/regering.

  • 46722. Wängberg, S-Å
    et al.
    Garde, K
    Gustavson, K
    Selmer, Johanne-Sophie
    Karlstad University, Faculty of Social and Life Sciences, Department of Biology.
    Effects of UVB radiation on marine phytoplankton communities1999In: Journal of Plankton Research. 21:147-166Article in journal (Refereed)
  • 46723. Wängberg, S-Å
    et al.
    Selmer, Johanne-Sophie
    Karlstad University, Faculty of Social and Life Sciences, Department of Biology.
    Mesocosm studies on the effects of UV radiation in marine ecosystems1996In: Höder, D.-P. (ed) Effects of ozone depletion in aquatic ecosystems pp. 199-214Article in journal (Refereed)
  • 46724. Wängberg, S-Å
    et al.
    Selmer, Johanne-Sophie
    Karlstad University, Faculty of Social and Life Sciences, Department of Biology.
    Ekelund, N G A
    Gustavson, K
    Effects of increased UV-B radiation on Nordic marine ecosystem - A literature review1996In: TemaNord 1996:515. Nordic Council of Ministers. ISBN 92 9120 823 XArticle in journal (Refereed)
  • 46725. Wängberg, S-Å
    et al.
    Selmer, Johanne-Sophie
    Karlstad University, Faculty of Social and Life Sciences, Department of Biology.
    Gustavson, K
    Effects of UV-B radiation on carbon and nitrogen dynamics in marine planktonic communities1998In: Journal of Photochemistry and Photobiology B: Biolgy 45:19-24Article in journal (Refereed)
  • 46726.
    Wäppling, Elina
    et al.
    Karlstad University, Faculty of Arts and Social Sciences (starting 2013), Karlstad Business School.
    Haxhiislami, Unita
    Karlstad University, Faculty of Arts and Social Sciences (starting 2013), Karlstad Business School.
    Konflikthantering hos projektdeltagare: - en studie om könsrollers och utbildnings påverkan2015Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This study aims to investigate the effect that gender roles and education, in project man- agement and/or conflict management, has on project participants conflict management and their self awareness regarding this matter. The reason for this is the social structures and other conditions that may have an effect on how a person with a certain gender acts in different situations. Furthermore, a theoretical basis can lead to a better conflict man- agement and understanding.

    The study will be executed with the aid of a conflict style test and an analyses model, where the theory of gender roles and the importance of education will be com- pared to the empirical data.

    The empirical data was collected through surveys with a total of 41 participants. The data sought is sex, educational level, self-perceived conflict style and actual conflict style (examined with the conflict style test in the survey). The study’s time frame is rela- tively narrow, hence the number of respondents is limited. This will reduce, but not eliminate, the possibility of generalizations.

    The study is limited to the aspects of gender roles (conditions that are applied to each gender) and relevant academic education*.

    The surveys answers were analysed in relation to each other to finally culminate in a conclusion that shows that there is no clear relationship between gender and conflict style, education* and conflict style nor education* and self-awareness regarding their conflict style. 

  • 46727.
    Wärdell, David
    Karlstad University.
    Restoring the Apocalypse: Recurrence, Religion and the Fall of Humanity in Walter M. Miller, Jr.'s A Canticle for Leibowitz2010Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    In A Canticle for Leibowitz, Walter M. Miller, Jr. tells a grim narrative of the future of human civilization. The author’s reliance on the themes of recurrence and religion distinguishes the novel from similar works in the science fiction genre, and are key elements in framing Miller’s post-apocalyptic vision. This essay argues that these themes are employed by the author in order to establish the fall of humanity as part of an inevitable cycle. Central aspects of Judeo-Christian tradition, such as the fall, the burden of original sin and the deluge, are discerned in Miller’s narrative, and linked to the concepts of destruction and restoration in the novel. The loss of an original place of perfection, and humanity’s inability to return to that place, is argued to be central to the cycle’s repetition. The Catholic perception of original sin as hereditary is argued to be pivotal in the failure to achieve that return. The cyclic aspect of the return is also shown to contrast with the linear elements of the novel, particularly in light of the Christian eschatology and the linear progression of time. Furthermore, this essay discerns the different expressions of recurrence in miller’s narrative, ranging from structure and characters to theme. It is demonstrated how the author, through the application of recurrence, affirms the cyclic aspect of the narrative structure. Also, it is argued that its implementation serves to infuse the novel with sentiments of inevitability concerning the progression of the cycle.

  • 46728.
    Wäring, Carolina
    Karlstad University, Faculty of Arts and Social Sciences (starting 2013), Department of Language, Literature and Intercultural Studies (from 2013).
    Läs- och skrivsvårigheter: En kvalitativ studie om hur grundskollärare i åk 2 och 3 arbetar med läs- och skrivsvårigheter2018Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    The purpose of this study is to investigate how primary school teachers in grades 2 and 3 work with pupils with reading and writing difficulties, and what resources primary school can provide to assist these students. To answer this purpose, I conducted a qualitative interview method, the performance map. This is a tool that creates a broader understanding of respondents. The answers will be more profound and the interviewer will be a better listener. I have interviewed four primary school teachers from grade 2 and 3, as well as a principal, all from the same primary school. The results of this study indicate that the teacher`s competence, reading and writing methods and school resources are of great importance when working with students who has reading and writing difficulties.

  • 46729.
    Wärme, Jesper
    Karlstad University, Faculty of Arts and Social Sciences (starting 2013), Department of Social and Psychological Studies.
    Vuxen anknytning som prediktion av copingstrategier: En enkätstudie om vuxen anknytning och copingstrategier2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    A quantitative survey study has been carried out to investigate possible correlations and predictions between adult attachment and coping strategies. The sample for the study was 133 students from various Universities and colleges in Sweden who answered a questionnaire. . To measure adult attachment this study used Experience in close relationship (ECR-R), and copingstrategies was measured by Brief COPE. Data collected were analyzed in SPSS using the Pearson correlationcoefficient test and multiple regression analysis.

    The results from the present study showed significant negative correlation between anxiety loaded attachment and problem focused coping. The results also showed a significant negative correlation between avoidance attachment and problem focused coping. The results from the present study showed a significant correlation between anxiety loaded attachment and dysfunctional coping. The results also showed a significant correlation between avoidance attachment and dysfunctional coping. The study results showed that there was no correlation between anxiety loaded attachment and emotion focused coping. The results also showed that there was no correlation between avoidance attachment and emotion focused coping. The result from the present study showed that anxiety loaded extension was a significant predictor of problem-focused coping where 15% of the variance of problem-focused was explained. Anxiety loaded attachment was a significant predictor of dysfunctional coping where 22% of the variance was explained.

    The conclusions are that students with anxiety loaded and avoidance attachment use lower grade of problem-focused coping. Students with anxiety and avoidance attachment uses increasingly dysfunctional coping strategies. It is concluded that variables other than adult attachment affects using various coping strategies.

  • 46730.
    Wärme, Josefin
    Karlstad University, Faculty of Health, Science and Technology (starting 2013).
    Förnybar energi ur ett kvinnligt och manligt perspektiv: En attitydundersökning med avseende på att kartlägga hur synen på fönybar energi påverkas av om individen är kvinna eller man2013Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Abstract

    The extraction and usage of energy give rise to immense environmental problems which helps to accelerate climate change. Energy is an important resource for the community and there are a variety of different types of energy sources available, that are either classified as renewable or non-renewable energy sources. The usage of renewable energy sources cause less environmental impact than the usage of non-renewable energy, which in turn means that the energy’s strain on the environment is strongly affected by the type of energy source used.

    The aim of the study is to describe to what extent attitudes towards renewable energy are affected by whether the individual is male or female, by examining the hypothesis regarding how women have a closer connection to nature and to a larger extent shows on an pro-environmentally friendly behavior than men, and if it also can be detected on issues related to renewable energy and thus imply that women have a friendlier approach towards renewable energy than men. A number of ecofeminist believe that women have a stronger bond with the nature through her embodiment as a woman and by her maternal role, which according to previous research also leads to the fact that women shows on a more extensive environmental behavior.Through a qualitative research method in the form of semi-structured interviews has three female and three male respondents been asked questions with regards to the environment, individual responsibility and energy. All of the respondents have an understanding of the environmental problems that exist and what they are caused by, and that individual responsibility is of great significance for a reduced environmental impact, which enabled further evaluation of all respondents' views on renewable energy. Differences and similarities can be seen between women's and men's attitude towards renewable energy, but in the end, the similarities are too great and the differences too vague in order to be able to verify that women’s closer connection to the nature and their pro-environmental behavior means that they have a more positive attitude towards renewable energy than men. There is therefore no basis in my study to claim that attitudes towards renewable energy are affected by whether the individual is female or male.

  • 46731.
    Wärme, Julia
    Karlstad University, Faculty of Arts and Social Sciences (starting 2013), Department of Educational Studies.
    Dans i förskolan: Pedagogers förhållningssätt till dans och rörelse som pedagogiskt verktyg för de yngsta barnen2016Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The purpose of this study was to examine how preschool teachers relate to dancing with the youngest children in preschool. As the method I used questions sent by mail to the six selected preschool teachers. The questions were answered by the preschool teachers as a bit shorter written stories that followed throughout each question. I chose three teachers with shorter working experience in preschool and three teachers with long working experience in preschool. The answers I got from the interviews were presented in a result section.

     

    Then I drew parallels between the responses I received, the selected literature and my own thoughts. The results showed that all teachers except one was interested in dancing and considered themselves using dance as an educational tool for the youngest children. All educators clearly show that they know that children experience the world with their bodies and their minds. By contrast, all agree that dance/movement was important for the child’s body development and body awareness.

  • 46732. Wärnefors Borell, Helén
    Grundskolans kommunalisering - vad hände med eleverna2006Independent thesis Basic level (professional degree)Student thesis
  • 46733. Wärre, Katarina
    Livets film - en observerande undersökning av amatörfilm på filmarkivet i Grängesberg utifrån dess plats i forskarvärlden2005Independent thesis Basic level (degree of Bachelor)Student thesis
    Abstract [en]

    ”Film of Life” The Filmarchive in Grängesberg is in charge of restoring all non – fiction film from all over Sweden. The collection consists of mainly informative films, but also amateur-film, which will be of particular interest in this essay. Through a different set of perspectives, the essay will work through the character of the amateur-film, and in the final chapters evaluate it´s function in film-history and as an object of reserch. An analysis shows that the amateur-film, rather than working on causal parametres, primary functions as a tool for the author to glorify the memory of a recorded event. Thus it ignores the established conventions of filmmaking; the essay is hereby questioning how to place amateur-film within the film-history.

  • 46734.
    Wästlund, Erik
    Karlstad University, Faculty of Economic Sciences, Communication and IT, Department of Psychology. Karlstad University, Faculty of Economic Sciences, Communication and IT, Centre for HumanIT. Karlstad University, Faculty of Economic Sciences, Communication and IT, Service Research Center.
    Credential Selection2009Report (Refereed)
  • 46735.
    Wästlund, Erik
    Göteborgs universitet, Samhällvetenskapliga fakulteten, Psykologiska Institutionen.
    Experimental studies of human-computer interaction - working memory and mental workload in complex cognition2007Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    Complex cognition is readily described as cognitive tasks requiring the coordination of multiple steps of processing or tasks exceeding short term memory capacity. Similarly, mental workload may be described as the use and temporary expenditure of a finite amount of information processing capacity. In the current study, the mental workload of complex cognition was manipulated through variations in the mode of presentation (Study I) with the information being presented either printed on paper or displayed on a computer screen as well as through variations in page layout (Study II) with the information being presented, either using a page layout designed to fit the computer screen or on a long page of scroll type. In Study III, the short-term memory demands of the complex cognitive tasks themselves were explored. The principal findings of the three studies may be summarized by the following points: Consumption of information is more effective when information is presented on paper rather than displayed on a computer screen (Study I: Experiment 1). Similarly, Production of information is more effective when information is presented on paper (Study I: Experiment 2) rather than on a computer screen. Consumption of information generates less mental workload when the page layout is adapted to fit the computer screen (Study II: Experiments 1 & 2). Problem solving processes, including both Consumption and Production of information, may be described both in terms of their reliance on either ST-WM or LT-WM (Study III: Experiments 1, 2 & 3) and in terms of their reliance on specific 'slave systems' of the tripartite model (Study III: Experiments 1 & 3). Taken together, Studies I and II show that the presentation of information on screen, versus in printed form, exerts detrimental effects on human information processing and that some of those effects may be attributed to differences in the navigational properties of the two media. In addition, Study II demonstrated that an adaptation of the page layout of the presented material so that it fitted its intended media, mental workload may be alleviated. Finally, the results of Study III showed that, in order to understand the memory demands of complex cognition, it is necessary to include elements of both the ST- and LT-WM paradigm of Ericsson & Kintsch and the tripartite model of Baddeley & Hitch.

  • 46736.
    Wästlund, Erik
    Karlstad University, Faculty of Economic Sciences, Communication and IT, Department of Psychology. Karlstad University, Faculty of Economic Sciences, Communication and IT, Centre for HumanIT. Karlstad University, Faculty of Economic Sciences, Communication and IT, Service Research Center.
    Experimental studies of human-computer interaction: working memory and mental workload in complex cognition2007Doctoral thesis, monograph (Other academic)
    Abstract [en]

    Complex cognition is readily described as cognitive tasks requiring the coordination of multiple steps of processing or tasks exceeding short term memory capacity. Similarly, mental workload may be described as the use and temporary expenditure of a finite amount of information processing capacity. In the current study, the mental workload of complex cognition was manipulated through variations in the mode of presentation (Study I) with the information being presented either printed on paper or displayed on a computer screen as well as through variations in page layout (Study II) with the information being presented, either using a page layout designed to fit the computer screen or on a long page of scroll type. In Study III, the short-term memory demands of the complex cognitive tasks themselves were explored.



    The principal findings of the three studies may be summarized by the following points:



    Consumption of information is more effective when information is presented on paper rather than displayed on a computer screen (Study I: Experiment 1).



    Similarly, Production of information is more effective when information is presented on paper (Study I: Experiment 2) rather than on a computer screen.



    Consumption of information generates less mental workload when the page layout is adapted to fit the computer screen (Study II: Experiments 1 & 2).



    Problem solving processes, including both Consumption and Production of information, may be described both in terms of their reliance on either ST-WM or LT-WM (Study III: Experiments 1, 2 & 3) and in terms of their reliance on specific 'slave systems' of the tripartite model (Study III: Experiments 1 & 3).



    Taken together, Studies I and II show that the presentation of information on screen, versus in printed form, exerts detrimental effects on human information processing and that some of those effects may be attributed to differences in the navigational properties of the two media. In addition, Study II demonstrated that an adaptation of the page layout of the presented material so that it fitted its intended media, mental workload may be alleviated. Finally, the results of Study III showed that, in order to understand the memory demands of complex cognition, it is necessary to include elements of both the ST- and LT-WM paradigm of Ericsson & Kintsch and the tripartite model of Baddeley & Hitch.

  • 46737. Wästlund, Erik
    Explorations in cross - cultural differences in levels of self concept as measured by the SDQ1 (svensk text)1999Independent thesis Advanced level (degree of Master (One Year))Student thesis
  • 46738.
    Wästlund, Erik
    Göteborgs universitet, Samhällvetenskapliga Fakulteten , Psykologiska institutionen.
    Manipulation and Measurement of Mental Workload - An experimental investigation in human computer interaction2005Licentiate thesis, comprehensive summary (Other academic)
  • 46739.
    Wästlund, Erik
    Karlstad University, Faculty of Economic Sciences, Communication and IT, Department of Psychology. Karlstad University, Faculty of Economic Sciences, Communication and IT, Centre for HumanIT. Karlstad University, Faculty of Economic Sciences, Communication and IT, Service Research Center.
    Manipulation and Measurement of Mental Workload: An experimental investigation in human computer interaction2005Licentiate thesis, monograph (Other academic)
  • 46740.
    Wästlund, Erik
    et al.
    Karlstad University, Faculty of Economic Sciences, Communication and IT, Department of Psychology. Karlstad University, Faculty of Economic Sciences, Communication and IT, Centre for HumanIT. Karlstad University, Faculty of Economic Sciences, Communication and IT, Service Research Center.
    Angulo, Julio
    Karlstad University, Faculty of Economic Sciences, Communication and IT, Department of Computer Science.
    Fischer-Hübner, Simone
    Karlstad University, Faculty of Economic Sciences, Communication and IT, Department of Computer Science. Karlstad University, Faculty of Economic Sciences, Communication and IT, Centre for HumanIT.
    Evoking Comprehensive Mental Models of Anonymous Credentials2012In: Proceedings of the 2011 IFIP WG 11.4 international conference on Open Problems in Network Security / [ed] Camenisch J., Kesdogan, D., Berlin: Springer Berlin/Heidelberg, 2012, Vol. 7039, p. 1-14Conference paper (Refereed)
    Abstract [en]

    Anonymous credentials are a fundamental technology for preserving end users' privacy by enforcing data minimization for online applications. However, the design of user-friendly interfaces that convey their privacy benefits to users is still a major challenge. Users are still unfamiliar with the new and rather complex concept of anonymous credentials, since no obvious real-world analogies exists that can help them create the correct mental models. In this paper we explore different ways in which suitable mental models of the data minimization property of anonymous credentials can be evoked on end users. To achieve this, we investigate three different approaches in the context of an e-shopping scenario: a card-based approach, an attribute-based approach and an adapted card-based approach. Results show that the adapted card-based approach is a good approach towards evoking the right mental models for anonymous credential applications. However, better design paradigms are still needed to make users understand that attributes can be used to satisfy conditions without revealing the value of the attributes themselves.

  • 46741.
    Wästlund, Erik
    et al.
    Karlstad University, Faculty of Arts and Social Sciences (starting 2013), Service Research Center.
    Edvardsson, BoKarlstad University, Faculty of Arts and Social Sciences (starting 2013), Service Research Center.Gustafsson, AndersKarlstad University, Faculty of Arts and Social Sciences (starting 2013), Service Research Center.Bitner, BitnerArizona State University.Verma, RohitCornell University.
    Proceedings of the 13th International Research Symposium on Service Excellence in Management (QUIS 13), June 2013, CTF Center for Service Systems, Karlstad University, Karlstad, Sweden2013Conference proceedings (editor) (Refereed)
  • 46742.
    Wästlund, Erik
    et al.
    Karlstad University, Faculty of Economic Sciences, Communication and IT, Department of Psychology. Karlstad University, Faculty of Economic Sciences, Communication and IT, Centre for HumanIT. Karlstad University, Faculty of Economic Sciences, Communication and IT, Service Research Center.
    Fischer Hübner, Simone
    Karlstad University, Faculty of Economic Sciences, Communication and IT, Department of Computer Science. Karlstad University, Faculty of Economic Sciences, Communication and IT, Centre for HumanIT.
    Graf, Conny
    Hochleitner, Christina
    Wolkerstorfer, Peter
    Angulo, Julio
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Final HCI Research Report: Deliverable D4.1.52011Report (Refereed)
    Abstract [en]

    This deliverable provides an overview of recent research results of Activity 4 ‘Usability’ of PrimeLife, where an emphasis is put on those results, which have not been reported in the same detail in other HCI-related PrimeLife deliverables yet. The first part reports about our results in the area of User Interface (UI) Representation of Privacyenhancing Identity Management Concepts and presents research on PET methodologies, mental models for anonymous credentials and the results from the final round of end-user evaluations of the UI prototypes developed during the PrimeLife project. The second part reports about our work in the area of usable privacy policies and presents the final results of Activity 4’s research on policy icons and on a user-friendly management and display of PPL (PrimeLife Policy Language) policies.

  • 46743.
    Wästlund, Erik
    et al.
    Karlstad University, Faculty of Economic Sciences, Communication and IT, Department of Psychology. Karlstad University, Faculty of Economic Sciences, Communication and IT, Centre for HumanIT. Karlstad University, Faculty of Economic Sciences, Communication and IT, Service Research Center.
    Fischer Hübner, Simone
    Karlstad University, Faculty of Economic Sciences, Communication and IT, Department of Computer Science. Karlstad University, Faculty of Economic Sciences, Communication and IT, Centre for HumanIT.
    Graf, Cornelia
    Hochleitner, Christina
    Wolkerstorfer, Peter
    Angulo, Julio
    Towards Usable Privacy Enhancing Technologies: Lessons Learned from the PrimeLife Project2011Report (Other academic)
    Abstract [en]

    In this deliverable, we present lessons learnt from the PrimeLife HCI (Human Computer Interaction) Activity by discussing typical HCI challenges and fallacies that we experienced during the PrimeLife project. We also provide guidance on how these issues can be addressed in order to develop usable privacy-enhancing technology solutions.

  • 46744.
    Wästlund, Erik
    et al.
    Karlstad University, Faculty of Economic Sciences, Communication and IT, Department of Psychology. Karlstad University, Faculty of Economic Sciences, Communication and IT, Centre for HumanIT. Karlstad University, Faculty of Economic Sciences, Communication and IT, Service Research Center.
    Fischer Hübner, SimoneKarlstad University, Faculty of Economic Sciences, Communication and IT, Department of Computer Science. Karlstad University, Faculty of Economic Sciences, Communication and IT, Centre for HumanIT.Köffel, CWolkerstorfer, Peter
    HCI Research Report: Version 12009Collection (editor) (Other academic)
    Abstract [en]

    One of the core activities in the PrimeLife  project is the design and implementation of privacy aware applications that are usable. Therefore it is the main objective of Activity 4 to assure the usability of those applications and advance the research in this area. The First HCI Research Report presents the main research results of the HCI activity within the first year of PrimeLife. The HCI Research Report V1 presents work in progress and will be updated and complemented by a second version, the Final HCI Research Report (D4.1.5), which will be published at the end of the PrimeLife project.

  • 46745.
    Wästlund, Erik
    et al.
    Karlstad University, Faculty of Economic Sciences, Communication and IT, Department of Psychology. Karlstad University, Faculty of Economic Sciences, Communication and IT, Centre for HumanIT. Karlstad University, Faculty of Economic Sciences, Communication and IT, Service Research Center.
    Fischer Hübner, Simone
    Karlstad University, Faculty of Economic Sciences, Communication and IT, Department of Computer Science. Karlstad University, Faculty of Economic Sciences, Communication and IT, Centre for HumanIT.
    Wolkerstorfer, Peter
    Usability Challenges of Privacy Technologies2011Conference paper (Other (popular science, discussion, etc.))
  • 46746.
    Wästlund, Erik
    et al.
    Karlstad University, Faculty of Economic Sciences, Communication and IT, Department of Psychology. Karlstad University, Faculty of Economic Sciences, Communication and IT, Centre for HumanIT. Karlstad University, Faculty of Economic Sciences, Communication and IT, Service Research Center.
    Fischer Hübner, Simone
    Karlstad University, Faculty of Economic Sciences, Communication and IT, Department of Computer Science. Karlstad University, Faculty of Economic Sciences, Communication and IT, Centre for HumanIT.
    Zwingelberg, Harald
    UI prototypes: Policy administration and presentation (version 1)2009Report (Refereed)
    Abstract [en]

    Privacy Policies are an important prerequisite for user control in privacy-enhancing identity management. The transparency of privacy policies can be enhanced if users are informed about mismatches of a site’s policy with the user’s preferences. Investigating understandable and transparent privacy policies as well as simplified and usable privacy preference (data release policy) management "on the fly" are the objectives of the deliverable. For this, it is discussing icons presenting the content of policies and different User Interface (UI) prototypes for policy display and preference administration, which have been partly compared and tested in an Online user study. Finally, legal requirements for policy display in social network sites and how they translate to Human Computer Interaction (HCI) requirements are investigated.

  • 46747.
    Wästlund, Erik
    et al.
    Karlstad University, Faculty of Economic Sciences, Communication and IT, Department of Psychology. Karlstad University, Faculty of Economic Sciences, Communication and IT, Centre for HumanIT. Karlstad University, Faculty of Economic Sciences, Communication and IT, Service Research Center.
    Fischer-Hübner, Simone
    Karlstad University, Faculty of Economic Sciences, Communication and IT, Department of Computer Science. Karlstad University, Faculty of Economic Sciences, Communication and IT, Centre for HumanIT.
    End User Transparency Tools: UI Prototypes2010Report (Refereed)
    Abstract [en]

    The Data Track is a user-side transparency-enhancing tool developed in PrimeLife, which provides the users with a history function documenting what personal data the user has revealed to whom under which conditions. Besides, it provides online functions to access the user’s personal data at the remote services side. This deliverable documents PrimeLife work package 4.2’s work on a usable Data Track. After introducing into the Data Track functionalities and the technical background, we will present the results of five iterations of user interface developments and usability testing, which we performed at Karlstad University and at CURE. We also present our initial work on a Data Track for social communities as well as on a Data Track for lifelong privacy.

  • 46748.
    Wästlund, Erik
    et al.
    Karlstad University, Faculty of Economic Sciences, Communication and IT, Department of Psychology. Karlstad University, Faculty of Economic Sciences, Communication and IT, Centre for HumanIT. Karlstad University, Faculty of Economic Sciences, Communication and IT, Service Research Center.
    Fischer-Hübner, Simone
    Karlstad University, Faculty of Economic Sciences, Communication and IT, Department of Computer Science. Karlstad University, Faculty of Economic Sciences, Communication and IT, Centre for HumanIT.
    The Users' Mental Models' Effect on their Comprehension of Anonymous Credentials2011In: Privacy and Identity Management for Life / [ed] Camenisch, J.; Fischer-Hübner, S.; Rannenberg, K., Heidelberg: Springer , 2011, p. 233-244Chapter in book (Other academic)
    Abstract [en]

    Anonymous Credentials are a key technology for enforcing data minimisation for online applications. The design of easily understandable user interfaces for the use of anonymous credentials is however a major challenge, as end users are not yet familiar with this rather new and complex technology and no obvious real-world analogies exist for them. In this chapter, we analyse what effects the users’ mental models have on their understanding of the data minimization property of anonymous credentials in the context of an e-Shopping application scenario. In particular, we have investigated the effects of the mental models of a card-based user interface approach and an attribute-based user interface approach and compared these in terms of errors of omission and addition. The results show that the card-based approach leads to significantly more errors of addition (i.e., users believe that they have disclosed more information than they actually have) whereas the attribute-based approach leads to more errors of omission (i.e., users underestimate the amount of data that they have disclosed).

  • 46749.
    Wästlund, Erik
    et al.
    Karlstad University, Faculty of Economic Sciences, Communication and IT, Department of Psychology. Karlstad University, Faculty of Economic Sciences, Communication and IT, Centre for HumanIT. Karlstad University, Faculty of Economic Sciences, Communication and IT, Service Research Center.
    Graf, C
    Wolkerstorfer, P
    Hochleitner, C
    Tscheligi, M
    HCI for PrimLIfe Prototypes2011In: Primelife - Privacy and Identity Management for Life / [ed] J. Camenisch, S. Fischer-Hübner & K. Rannenberg, Heidelberg: Springer , 2011, p. 217-Chapter in book (Other academic)
  • 46750.
    Wästlund, Erik
    et al.
    Karlstad University, Faculty of Economic Sciences, Communication and IT, Department of Psychology. Karlstad University, Faculty of Economic Sciences, Communication and IT, Centre for HumanIT. Karlstad University, Faculty of Economic Sciences, Communication and IT, Service Research Center.
    Khandelwal, Nikunj
    Köffel, Christina
    Access Control in Social Networks2009Report (Refereed)
932933934935936937938 46701 - 46750 of 47953
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