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  • Andersson, Joacim
    et al.
    Örebro University, School of Health Sciences.
    Garrison, Jim
    Virginia Polytechnic Institute and State University, USA.
    Östman, Leif
    Uppsala University, Uppsala, Sweden.
    Empirical Philosophical Investigations in Education and Embodied Experience2018Book (Refereed)
    Abstract [en]

    Chapter 1

     This chapter explores some of the most interesting intersections between the philosophy of John Dewey and the later Ludwig Wittgenstein. Practical epistemological analysis (PEA), Situated Epistemic Relations (SER), and Situated Artistic Relations (SAR) examine learning primarily as a sociolinguistic practice. Since it is a sociolinguistic practice, much of both the product and the process of learning are plainly visible to sophisticated methodological observation. This chapter emphasizes the primacy of practice in comprehending linguistic meaning (i.e., forms of life, language-games, meaning as use, etc.), the rejection of a private language, antifoundationalism, and epistemological contextualism, action, and antirepresentationalism. It establishes the philosophical framework for our analytical method developed in Chap. 3  and assumed in Chap. 4 .

  • Pettersson, Nicklas
    Stockholm University, Stockholm, Sweden.
    Some results from simulations with kernel imputation2010In: Workshop on Survey Sampling Theory and Methodology: August 23-27, 2010, Vilnius, Vilnius, Lithuania: Statistics Lithuania , 2010Conference paper (Refereed)
    Abstract [en]

    This paper presents someresults from the use of kernel imputation with boundary adjustment. The simulationsshow promising results and the method usually behaves equal to or better thancompetitive methods.

  • Björklund, Johanna
    et al.
    Örebro University, School of Science and Technology.
    Eksvärd, Karin
    Inspire Action and Research AB, Knivsta, Sweden.
    Schaffer, Christina
    Department of Physical Geography, Stockholm University, Stockholm, Sweden.
    Exploring the potential of edible forest gardens: experiences from a participatory action research project in Sweden2018In: Agroforestry Systems, ISSN 0167-4366, E-ISSN 1572-9680Article in journal (Refereed)
    Abstract [en]

    To meet the environmental challenges that are presently confronting society, the narrow focus on agricultural production needs to be altered to one that places equal value on the generation of crucial ecosystem services. Current research shows that perennial intercropping systems such as agroforestry may be a feasible alternative. Based on studies during the establishment of edible forest gardens in 12 participating farms in Sweden, this paper explores the potential of utilizing multi-strata designs for food production in temperate, highincome countries. Design and species composition of such gardens, types of food they provide, and how they would best fit into the present landscape are discussed. Factors for success and major problems related to the establishment are shared. Potential benefits were found to be closely related to a thorough analysis of the social and ecological contexts before establishment. Characteristics of the site and goals of the garden need to guide species and design choices. If forest garden approaches to food production should contribute to more than local selfsufficiency, the gardens need to increase in scale. Marginal lands and transitions areas between different land uses may be appropriate. Large knowledge gaps concerning potential production, social and economic benefits, and agronomic issues were identified.

  • Andrén, Thomas
    The Swedish Confederation of Professional Associations (Saco), Stockholm, Sweden.
    Inkomstförsäkringars effekt på arbetslöshet och matchning2015In: Arbetsmarknad & Arbetsliv, ISSN 1400-9692, Vol. 21, no 1, p. 54-71Article in journal (Refereed)
    Abstract [sv]

    Inkomsttaket i den allmänna arbetslöshetsförsäkringen är idag så lågt att få individer erhåller 80 procent av tidigare lön. Det har drivit fram alternativa lösningar för inkomstbortfall vid arbetslöshet där fackförbunden idag erbjuder sina medlemmar kompletterande kollektiva inkomstförsäkringar med högre inkomsttak. I den här artikeln undersöks dels om dessa försäkringar är associerade med längre arbetslöshetsperioder, dels om sannolikheten för återfall i nya ersättningsperioder påverkas.

  • Asiimwe, Edgar Napoleon
    et al.
    Örebro University, Örebro University School of Business.
    Grönlund, Åke
    Örebro University, Örebro University School of Business.
    Hatakka, Mathias
    Dalarna University, Sweden.
    Practices and challenges in an emerging m-learning environment2017In: ijEDict - International Journal of Education and Development using Information and Communication Technology, ISSN 1814-0556, E-ISSN 1814-0556, Vol. 13, no 1, p. 103-122Article in journal (Refereed)
    Abstract [en]

    This study reports an interpretative case study investigating practices and challenges in an emerging m-learning environment at Makerere University in Uganda. The research was part of the MobiClass pilot project. Data was collected by means of observations and interviews with teachers and various m-learning support staff, including teacher trainers, systems administrators and a software developer. The Framework for Rational Analysis of Mobile Education (FRAME) is used as an analytic framework. The research focuses on how learning content management systems (LCMS) are implemented and used for m-learning purposes. We observed teacher training and m-learning content development practices and found that teacher skills for developing educational content, institutional m-learning policies and training programs are crucial success factors. The main finding is the importance of the support staff; it takes a long time to implement new technology and change teaching practices, support staff is needed to manage, inspire and support student and teachers.

  • Berg, Monika
    et al.
    Örebro University, School of Humanities, Education and Social Sciences.
    Lidskog, Rolf
    Örebro University, School of Humanities, Education and Social Sciences.
    Pathways to deliberative capacity: the role of the IPCC2018In: Climatic Change, ISSN 0165-0009, E-ISSN 1573-1480Article in journal (Refereed)
    Abstract [en]

    This article explores the arguments for expanding deliberation in the Intergovernmental Panel on Climate Change (IPCC) and scrutinizes their implications for the deliberative capacity of global environmental governance (GEG). An analysis of the IPCC is presented that builds on a systematic literature review and thus a broad set of scientific debates concerning the IPCC. Based on this analysis, two different paths are outlined, one moderate and one radical; these paths ascribe different democratizing functions to the IPCC and rely on different epistemologies. The moderate path emphasizes decision capacity, whereas the radical path strives to create deliberative space and to identify the value inherent in different claims. It is argued that the IPCC cannot accommodate the aspirations of these different pathways in a single assessment. Parallel assessments must be developed in complementary subject areas with different science-policy relations.

  • Alexopoulou, Sofia
    et al.
    Örebro University, School of Humanities, Education and Social Sciences.
    Fart, Frida
    Örebro University, School of Medical Sciences.
    Jonsson, Ann-Sofie
    Örebro University, School of Hospitality, Culinary Arts & Meal Science.
    Karni, Liran
    Örebro University, Örebro University School of Business.
    Kenalemang, Lame Maatla
    Örebro University, School of Humanities, Education and Social Sciences.
    Krishna, Sai
    Örebro University, School of Science and Technology.
    Lindblad, Katarina
    Örebro University, School of Music, Theatre and Art.
    Loutfi, Amy
    Örebro University, School of Science and Technology.
    Lundin, Elin
    Örebro University, School of Health Sciences.
    Samzelius, Hanna
    Örebro University, School of Humanities, Education and Social Sciences.
    Schoultz, Magnus
    Örebro University, School of Humanities, Education and Social Sciences.
    Spang, Lisa
    Örebro University, School of Health Sciences.
    Söderman, Annika
    Örebro University, School of Health Sciences.
    Tarum, Janelle
    Örebro University, School of Health Sciences.
    Tsertsidis, Antonios
    Örebro University, Örebro University School of Business.
    Widell, Bettina
    Örebro University, School of Humanities, Education and Social Sciences.
    Nilsson, Kerstin (Editor)
    Örebro University, School of Medical Sciences.
    Successful ageing in an interdisciplinary context: popular science presentations2018Book (Other (popular science, discussion, etc.))
  • Bergh, Andreas
    et al.
    Örebro University, School of Humanities, Education and Social Sciences.
    Wahlström, Ninni
    Department of Education, Linnaeus University, Växjö, Sweden.
    Conflicting goals of educational action: a study of teacher agency from a transactional realism perspective2018In: Curriculum Journal, ISSN 0958-5176, E-ISSN 1469-3704, Vol. 29, no 1, p. 134-149Article in journal (Refereed)
    Abstract [en]

    This study focuses on the different ways in which teachers relate their situational agency and professional assignment to the national curriculum content and curriculum dilemmas. It builds theoretically on transactional realism and empirically on analyses of interviews with teachers, exploring the nature of teacher agency during the enactment of a new Swedish curriculum reform. To uphold a dual perspective of teachers’ relation to the curriculum as both collectively and individually experienced and as both an ideal and realistic–practical relation, we term the future as ‘projective experiences’, the presence as ‘practical-evaluative experiences’ and the past ‘iterational experiences’ in relation to agency. Especially, we are interested in the ‘what’ in the curriculum – what the teachers find intriguing, important or impossible and what affects how they relate to the curriculum as part of the multidimensional structures influencing their agency. This approach reveals that the crucial issue of teacher agency is related to the policy discourse on knowledge and equity as standards and the uniformity of assessment and its pedagogical consequences.

  • Bergh, Andreas
    et al.
    Örebro University, School of Humanities, Education and Social Sciences.
    Löfdahl Hultman, Annica
    Faculty of Art and Social Sciences, Karlstad University, Karlstad, Sweden.
    Englund, Tomas
    Örebro University, School of Humanities, Education and Social Sciences.
    Local enactment of the Swedish ‘advanced teacher reform’2018In: Journal of Curriculum Studies, ISSN 0022-0272, E-ISSN 1366-5839Article in journal (Refereed)
    Abstract [en]

    This article focuses on a new form of governing that targets a selected group of teachers. Specifically, it analyses how the Swedish so-called advanced teacher reform is enacted at the local level and discusses its implications for teachers’ professionalism. The methodological approach enables a local analysis in a broader international policy context. Using characteristic elements from curriculum theory to analyse the relationship between different levels and elaborating on the linguistic turn of curriculum theory, three concepts are central in the analysis: enactment, linguistic criteria and professionalism. Empirically, the study draws on material from a two-year application process in a medium-sized municipality. The result demonstrates that the local enactment process is clearly influenced by transnational policy trends and that less allowance is made for teachers’ own experience-based knowledge in the second studied year. The linguistic analysis shows how the applicants using the ‘right concepts’ were selected to become ‘advanced teachers’. As complex and qualitative aspects disappeared from the agenda, this type of governing, with its standardized use of language, may reduce schools’ educational potential. Changes like this raise new questions about how schools can maintain and develop democratic and professional values whilst being exposed to new policy trends.

  • Nicklas, Lindgren
    et al.
    Örebro University, School of Humanities, Education and Social Sciences.
    Öhman, Johan
    Örebro University, School of Humanities, Education and Social Sciences.
    A posthuman approach to human-animal relationships: advocating critical pluralism2018In: Environmental Education Research, ISSN 1350-4622, E-ISSN 1469-5871Article in journal (Refereed)
    Abstract [en]

    This paper contributes to the debate about the absence of nonhuman animals (The term ‘nonhuman animal’ is used to emphasise the interconnection with the human being, viewed as a human animal. Using this terminology does not avoid a homogenising, stereotyping and simplifying of a multiplicity of animal (and human) beings. Nonetheless, we think that such a ‘simplification’ of concepts is inescapable in academic discussions concerning humans and nonhuman animals.) in environmental and sustainable education (ESE) and the challenge of the anthropocentric characterisation of European education. Relating to the debate about a pluralistic approach in ESE as a ‘one-species only pluralism’, we draw on Val Plumwood’s ecofeministic dialogical interspecies ethics and Rosi Braidotti’s understanding of a posthuman/ nomadic subjectivity. By regarding ‘difference’ as a constituting force, we present a ‘critical pluralistic’ approach to human-animal relationships in ESE. Instead of drawing new lines of moral consideration for nonhuman beings, an ethical and political appreciation of what nonhuman others can do in ESE is suggested. Recommendations for educational practice are to recognise nonhuman agency to reveal political and ethical dimensions, recognise the agency of non-living animals and stay in conflicts and ‘study up’ and develop an immanent critique, which could lead to alternative pedagogical approaches to human-animal relationships in different cross-curricula settings.

  • Vrettou, Maria
    et al.
    Department of Neuroscience, Uppsala University, Uppsala, Sweden.
    Nillson, Kent W.
    Västerås Centre for Clinical Research, Uppsala University, Västerås, Sweden.
    Tuvblad, Catherine
    Department of Psychology, University of Southern California, Los Angeles, United States.
    Rehn, Mattias
    Västerås Centre for Clinical Research, Uppsala University, Västerås, Sweden.
    Andershed, Anna-Karin
    Örebro University, School of Law, Psychology and Social Work.
    Wallén-Mackenzie, Åsa
    Department of Organismal Biology, Uppsala University, Uppsala, Sweden.
    Andershed, Henrik
    Örebro University, School of Law, Psychology and Social Work.
    Nylander, Ingrid
    Department of Pharmaceutical Biosciences, Uppsala University, Uppsala, Sweden.
    Comasco, Erika
    Department of Neuroscience, Uppsala University, Uppsala, Sweden.
    VGLUT2 genotype interacts with environmental experiences to predict alcohol misuse in young adults2016In: ISBRA ESBRA World Congress on Alcohol an Alcoholism, Berlin, Germany, 2016Conference paper (Other academic)
    Abstract [en]

    The heritability of alcohol use disorder (AUD) ranges between 40 to 60%, as demonstrated by twin studies. Environmental factors are hence of importance for the developmental trajectory of the disorder. Gene-by-environment interactions indeed influence neuroplasticity and determine the individual’s susceptibility or resilience to AUD. Lately, a role of Vesicular Glutamate Transporter 2 (VGLUT2)-mediated neurotransmission has been indicated in studies of addiction- and alcohol-related phenotypes. We previously demonstrated an association between the single nucleotide polymorphism (SNP) rs2290045 in the VGLUT2 gene and alcohol dependence as well as showed an interaction effect between voluntary ethanol drinking and early life stress on Vglut2 expression in the ventral tegmental area of outbred rats. In the present study, using a population-based, cross-sectional and retrospective design, we aimed to investigate the association between two candidate VGLUT2 SNPs, rs1900586 and rs2290045, and aversive as well as supportive environmental factors on alcohol misuse in young adults. A total of 2,500 (52.6% females) individuals (mean age: 22.15 years) were included in the study. Aversive life events (i.e., physical violence, verbal aggression, witnessing violence) and parent-child relationship (i.e., early: until 18 years of age; lifetime: until present) were self-reported. Alcohol misuse was assessed using the AUD Identification Test (AUDIT). Preliminary results showed no main genotype effects on drinking profile. Multivariable analyses revealed that SNP rs1900586 interacted with exposure to verbal aggression and early parent-child relationship in respect to AUDIT scores. Male carriers of the major (T) allele reported higher AUDIT scores when exposed to verbal aggression and poor early parent-child relationship than the C carriers exposed to the same environment, while the opposite pattern was noted in the presence of supportive parent-child relationship. In individuals with symptoms of dependence or harmful alcohol use, SNP rs1900586 interacted with exposure to physical violence and parent-child relationship (early and lifetime) in both sexes. The same interaction effect was detected for SNP rs2290045 in females. These preliminary findings provide the first evidence that VGLUT2 genotype moderates the environmental sensitivity to alcohol misuse among young adults and call for further investigation in independent cohorts, including clinical samples.

  • Jussila, Jari L.
    et al.
    Tampere University of Technology, Tampere, Finland.
    Kärkkäinen, Hannu
    Tampere University of Technology, Tampere, Finland.
    Aramo-Immonen, Heli
    Tampere University of Technology, Tampere, Finland.
    Huthamäki, Jukka
    Tampere University of Technology, Tampere, Finland.
    Tuottavuusloikka sosiaalisen median avulla2015In: TiedeAreena 2015 / [ed] Maria Väkiparta, Tampere, Finland: Tampere University of Technology, 2015, , p. 35p. 26-27Chapter in book (Other academic)
  • Tuomi, Pauliina
    Tampere University of Technology, Tampere, Finland.
    Häyrynen, Maunu
    University of Turku, Turku, Finland.
    Jussila, Jari
    Tampere University of Technology, Tampere, Finland.
    Kalliola, Satu
    Tampere University, Tampere, Finland.
    Kiili, Kristian
    Tampere University of Technology, Tampere, Finland.
    Lipping, Tarmo
    Tampere University of Technology, Tampere, Finland.
    Repka, Sari
    University of Turku, Turku, Finland.
    Saarikoski, Petri
    University of Turku, Turku, Finland.
    Seppänen, Marko
    Tampere University of Technology, Tampere, Finland.
    Sivula, Anna
    University of Turku, Turku, Finland.
    Siivonen, Salla
    University of Turku, Turku, Finland.
    Soini, Jari
    Tampere University of Technology, Tampere, Finland.
    TiedeAreena 20162016Collection (editor) (Other academic)
  • Bergström, Gunnar
    et al.
    Division of Intervention and Implementation Research in Worker Health, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden; Centre for Occupational and Environmental Medicine, Stockholm County Council, Stockholm, Sweden.
    Lohela-Karlsson, M.
    Division of Intervention and Implementation Research in Worker Health, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
    Kwak, L.
    Division of Intervention and Implementation Research in Worker Health, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
    Bodin, Lennart
    Division of Intervention and Implementation Research in Worker Health, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
    Jensen, I.
    Division of Intervention and Implementation Research in Worker Health, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
    Torgén, Margareta
    Department of Medical Science, Uppsala University, Uppsala, Sweden.
    Nybergh, L.
    Division of Intervention and Implementation Research in Worker Health, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden..
    Preventing sickness absenteeism among employees with common mental disorders or stress-related symptoms at work: Design of a cluster randomized controlled trial of a problem-solving based intervention versus care-as-usual conducted at the Occupational Health Services2017In: BMC Public Health, ISSN 1471-2458, E-ISSN 1471-2458, Vol. 17, no 1, article id 436Article in journal (Refereed)
    Abstract [en]

    Background: Common mental disorders (CMDs) are among the leading causes of sick leave in Sweden and other OECD countries. They result in suffering for the individual and considerable financial costs for the employer and for society at large. The occupational health service (OHS) can offer interventions in which both the individual and the work situation are taken into account. The aim of this paper is to describe the design of a study evaluating the effectiveness of an intervention given at the OHS to employees with CMDs or stress-related symptoms at work. In addition, intervention fidelity and its relation to the outcome will be assessed in a process analysis.

    Methods: The study is designed as a cluster randomized trial in which the participating OHS consultants are randomized into either delivering the intervention or performing care as usual. Employees with CMDs or stress-related symptoms at work are recruited consecutively by the OHS consultants. The intervention aims to improve the match between the employee and the job situation. Interviews are held individually with the employee and the nearest supervisor, after which a joint meeting with both the employee and the supervisor takes place. A participatory approach is applied by which the supervisor and the employee are guided by the OHS consultant and encouraged to actively take part in problem solving concerning the work situation. Outcomes will be assessed at baseline and at six and 12 months. A long-term follow-up at 3 years will also be performed. The primary outcome is registered sickness absence during a 1-year period after study inclusion. Secondary outcomes are mental health and work ability. The intervention's cost effectiveness, compared to treatment as usual, both for society and for the employer will be evaluated. A process evaluation by both the OHS consultants and the employee will be carried out.

    Discussion: The study includes analyses of the effectiveness of the intervention (clinical and economic) as well as an analysis of its implementation at the participating OHSs. Possible methodological challenges such as selection bias and risk of contamination between OHS consultants delivering the experimental condition and consultants giving usual care are discussed.

  • Fredriksson, Ingela
    et al.
    Faculty of Medicine and Health, School of Health Sciences, Örebro University, Sweden.
    Geidne, Susanna
    Örebro University, School of Health Sciences.
    Eriksson, Charli
    Örebro University, School of Health Sciences.
    Leisure-time youth centres as health-promoting settings: Experiences from multicultural neighbourhoods in Sweden2018In: Scandinavian Journal of Public Health, ISSN 1403-4948, E-ISSN 1651-1905, Vol. 46, no Suppl. 20, p. 72-79Article in journal (Refereed)
    Abstract [en]

    Aims: The aim of this paper is to advocate for the importance of meaningful leisure time for young people from a health promotion perspective using experiences from two youth centres in multicultural neighbourhoods in Sweden.

    Methods: In this practice-based study, data were collected between 2012 and 2014 at two youth centres in multicultural, socially deprived suburbs in Sweden using surveys with 12- to 16-year-old adolescents (n = 207), seven individual interviews with staff and three cooperation partners in the neighbourhoods, and six group interviews with adolescents (50% girls). Quantitative, qualitative and mixed methods were used for analysis.

    Results: As part of the youth centres’ strategies, they are open and inclusive, foster supportive relationships, emphasise youth empowerment, and integrate family, school and community in their work. The youth centres are health-promoting settings with regard to four of the action areas in the Ottawa Charter: build healthy public policy, create supportive environments, strengthen community actions and develop personal skills.

    Conclusions: There is a need for a variety and a combination of various structured and unstructured leisure-time activities because young people’s background and life situation plays a role for their participation in leisure time activities. We conclude that youth centres are well placed to be or to become health-promoting settings if the activities takes place in a structured environment.

  • Vimefall, Elin
    Örebro University, Örebro University School of Business.
    Child education, child labor and the agricultural economy2016Report (Other academic)
    Abstract [en]

    Over the last decades, we have seen impressive progress in development around the world, and the proportion of people living in poverty (on less than $1.25 a day) has decreased from 36 percent in 1990 to 18 percent in 2010. However, this progress has been unequal, and a large part of the change is due to the development of some Asian countries, while most countries in Africa have seen more modest development. In sub- Saharan Africa, approximately 48 percent of the population still lives on less than $1.25 a day (UN 2014). There is also considerable inequality within countries. For example, in Kenya, the richest 10 percent of the population receives an estimated 40 percent of total income (World Bank 2014). Most poor people live in rural parts of the country, and they are more likely to be women, children, or members of a minority ethnic group. The research presented in this brief focus on these individuals, the most vulnerable in society. The paper draws substantially from my Ph.D. dissertation “Essays on Child Education, Child Labor and the Agricultural Economy”. The dissertation consists of four separate papers, with somewhat different focus. The first two papers focus on children and human capital, while the other two focus on the agricultural economy. In the first paper we ask whether children from different ethnolinguistic backgrounds have different probabilities of being in school. In the second paper I examine the connection between income diversification and working children. In the third paper I look at income diversification among female-headed households. In the last paper we analyze how different groups of households are affected when the price of maize increases.

  • Kågebro, Elin
    et al.
    Örebro University, Örebro University School of Business.
    Vredin Johansson, Maria
    Nationalekonomiska institutionen, Uppsala universitet, Uppsala, Sweden.
    Ekonomiska verktyg som beslutsstöd i klimatanpassningsarbetet: en metodöversikt2008Report (Other academic)
    Abstract [sv]

    En hel del anpassning till framtidens förändrade klimat kommer att ske successivt och självmant i respons på upplevda klimatförändringar. I många fall kan det fungera utmärkt men för investeringar och åtgärder med relativt lång livstid (säg mer än 25 år) och för investeringar och åtgärder som är känsliga för väderextremer ökar klimatförändringarna behovet av planering och framförhållning. I sådana situationer kan ekonomiska beslutsmodeller, som syftar till att fungera som planerings- och prioriteringsverktyg, vara till nytta för beslutsfattarna. I den här rapporten beskriver vi de vanligaste ekonomiska beslutsmodellerna; kostnadsnyttoanalys (CBA), kostnadseffektanalys (CEA) och multikritera-analys (MCA). Genom att tillhandahålla genomarbetade beslutsunderlag tror vi att dessa modeller kan förenkla beslut som rör klimatanpassningsåtgärder. Beskrivningarna kommer att tjäna som underlag för det fortsatta arbetet med att ta fram verktyg som kan användas på lokal nivå för klimatanpassningsbeslut inom Climatools.

  • Hernandez Bennetts, Victor
    et al.
    Örebro University, School of Science and Technology.
    Lilienthal, Achim
    Örebro University, School of Science and Technology.
    Khaliq, Ali Abdul
    Örebro University, School of Science and Technology.
    Pomareda Sese, Victor
    Institute for Bioengineering of Catalonia (IBEC), Barcelona, Spain.
    Trincavelli, Marco
    Örebro University, Örebro, Sweden..
    Gasbot: A Mobile Robotic Platform for Methane Leak Detection and Emission Monitoring2012In: Proceedings of the IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), Workshop on Robotics for Environmental Monitoring (WREM), Vilamoura, Portugal, October 7-12, 2012, 2012Conference paper (Refereed)
    Abstract [en]

    Due to its environmental, economical and safety implications, methane leak detection is a crucial task to address in the biogas production industry. In this paper, we introduce Gasbot, a robotic platform that aims to automatize methane emission monitoring in landfills and biogas production sites. The distinctive characteristic of the Gasbot platform is the use of a Tunable Laser Absorption Spectroscopy (TDLAS) sensor, along with a novel gas distribution algorithm to generate methane concentration maps of indoor and outdoor exploration areas. The Gasbot platform has been tested in two different scenarios: an underground corridor, where a pipeline leak was simulated and in a decommissioned landfill site, where an artificial methane emission source was introduced.

  • Saarinen, Jari
    et al.
    Department of Automation and Systems Technology, Aalto University, Alto, Finland.
    Andreasson, Henrik
    Örebro University, School of Science and Technology.
    Lilienthal, Achim
    Örebro University, School of Science and Technology.
    Independent Markov Chain Occupancy Grid Maps for Representation of Dynamic Environments2012In: 2012 IEEE/RSJ International Conference on Intelligent Robots and Systems, New York, USA: IEEE, 2012, p. 3489-3495Conference paper (Refereed)
    Abstract [en]

    In this paper we propose a new grid based approach to model a dynamic environment. Each grid cell is assumed to be an independent Markov chain (iMac) with two states. The state transition parameters are learned online and modeled as two Poisson processes. As a result, our representation not only encodes the expected occupancy of the cell, but also models the expected dynamics within the cell. The paper also presents a strategy based on recency weighting to learn the model parameters from observations that is able to deal with non-stationary cell dynamics. Moreover, an interpretation of the model parameters with discussion about the convergence rates of the cells is presented. The proposed model is experimentally validated using offline data recorded with a Laser Guided Vehicle (LGV) system running in production use.

  • Björkvall, Anders
    Örebro University, School of Humanities, Education and Social Sciences.
    Critical genre analysis of management texts in the public sector: Towards a theoretical and methodological framework2018In: Kritiska text- och diskursstudier / [ed] Wojahn, Daniel, Seiler Brylla, Charlotta & Westberg, Gustav, Huddinge, Sweden: Södertörns högskola , 2018, 1, p. 57-79Chapter in book (Refereed)
    Abstract [en]

    An emerging genre at Swedish public authorities – ‘platform of values’ (Swedish ‘värdegrund’) or ‘value statement’/‘core values’ – functions as a backdrop to the theoretical and methodological discussions in this paper. The paper argues for the development of a critical genre analysis that goes beyond being primarily descriptive and that has its main expla- natory value at a level of generality above mode-specific features of, for instance, language or images. Based on a review of how the term ‘critical’ has been defined and applied in relation to genre in critical discourse analysis/studies (CDA/CDS), multimodality, and genre studies of profes- sional communication a number of prerequisites for a critical genre analysis are formulated. Based on these prerequisites, affordance and pro- venance are put forward as ‘true’ multimodal concepts that can form the foundation for a critical genre analysis of, in this case, multimodal ‘plat- form of values’ texts. The applicability of these concepts is illustrated through an analysis of a ‘platform of value’ text from an administrative court in Sweden. 

  • Memedi, Mevludin
    et al.
    Örebro University, Örebro University School of Business.
    Tshering, Gaki
    Informatics, Business School, Örebro University, Örebro, Sweden.
    Fogelberg, Martin
    Informatics, Business School, Örebro University, Örebro, Sweden.
    Jusufi, Ilir
    Department of Computer Science and Media Technology, Linnaeus University, Växjö, Sweden.
    Kolkowska, Ella
    Örebro University, Örebro University School of Business.
    Klein, Gunnar O.
    Örebro University, Örebro University School of Business.
    An interface for IoT: feeding back health-related data to Parkinson's disease patients2018In: Journal of Sensor and Actuator Networks, ISSN 1007-7294, E-ISSN 1089-747X, Vol. 7, article id 14Article in journal (Refereed)
    Abstract [en]

    This paper presents a user-centered design (UCD) process of an interface for Parkinson’s disease (PD) patients for helping them to better manage their symptoms. The interface is designed to visualize symptom and medication information, collected by an Internet of Things (IoT)-based system, which will consist of a smartphone, electronic dosing device, wrist sensor and a bed sensor. In our work, the focus is on measuring data related to some of the main health-related quality of life aspects such as motor function, sleep, medication compliance, meal intake timing in relation to medication intake, and physical exercise. A mock-up demonstrator for the interface was developed using UCD methodology in collaboration with PD patients. The research work was performed as an iterative design and evaluation process based on interviews and observations with 11 PD patients. Additional usability evaluations were conducted with three information visualization experts. Contributions include a list of requirements for the interface, results evaluating the performance of the patients when using the demonstrator during task-based evaluation sessions as well as opinions of the experts. The list of requirements included ability of the patients to track an ideal day, so they could repeat certain activities in the future as well as determine how the scores are related to each other. The patients found the visualizations as clear and easy to understand and could successfully perform the tasks. The evaluation with experts showed that the visualizations are in line with the current standards and guidelines for the intended group of users. In conclusion, the results from this work indicate that the proposed system can be considered as a tool for assisting patients in better management of the disease by giving them insights on their own aggregated symptom and medication information. However, the actual effects of providing such feedback to patients on their health-related quality of life should be investigated in a clinical trial.

  • Hasselbladh, Hans
    et al.
    Stockholms universitet, Företagsekonomiska institutionen, Stockholm, Sweden.
    Bejerot, Eva
    Stockholms universitet, Psykologiska institutionen, Stockholm, Sweden.
    Gustafsson, R. Å.
    Bortom New Public Management: Institutionell transformation i svensk sjukvård2008Book (Refereed)
    Abstract [sv]

    Den offentliga sektorn i Sverige har präglats av förändring och turbulens sedan slutet av 1980-talet. Rationaliseringar och omstruktureringar

    har skett i stort sett all slags offentlig verksamhet. Inom forskningen sammanfattas ofta dessa förändringar med beteckningen ”New Public Management” (NPM). Bokens titel ”Bortom NPM” anspelar på att många av de metoder och förhållningssätt som sammanfattas under etiketten NPM nu är befästa och oomtvistade. Det centrala temat i vår bok är att visa hur introduktionen av NPM under 1980-talet lade grunden för längre gående förändringar inom svensk sjukvård än de ofta uppmärksammade tillämpningarna av ekonomistyrning och marknadsorientering. Det pågår en institutionell transformation av svensk sjukvård. I boken skildras framväxten av en ny transorganisatorisk styrningsregim i svensk sjukvård – förändringar som går bortom NPM. Detta mönster framträder tydligast när blicken lyfts från enskilda verksamheter, kommuner eller landsting.

    Bokens analyser bygger på en Foucaultinspirerad forskningstradition och visar hur den analyserade förändringen har skapat en diskursiv stängning kring vissa bestämda ideal, kunskapsformer och praktiker, en maktförskjutning till ett regleringslandskap bortom offentlighetens blick och en ny innebörd i att vara anställd för olika yrkesgrupper.

  • Bejerot, Eva
    et al.
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Stockholm, Sweden.
    Hasselbladh, HansÖrebro University, Örebro University School of Business. Stockholms universitet, Företagsekonomiska institutionen.
    Kvalitet utan gränser: en kritisk belysning av kvalitetsstyrning2002Collection (editor) (Other academic)
    Abstract [sv]

    Kvalitetsstyrning har under det senaste decenniet etablerats som en statligt sanktionerad styrdoktrin i Sverige, i USA och EU. Doktrinens språk, metoder och mål har etablerats i universitetsutbildningar, nationella kvalitetsinstitut och i lagar och föreskrifter. Eftersom kvalitetsstyrning kan omdefiniera vad organisationer är och syftar till är det viktigt att belysa området. "Kvalitet utan gränser" är den första boken på svenska med kritiska betraktelser av detta nya sätt att styra arbete. Ett antal forskare från Sverige, Norge och Danmark försöker i boken besvara frågor som: "Varför kvalitetsstyrning?" och "Vad är kvalitetsstyrning?".

  • Public defence: 2018-05-04 13:00 Örebro universitet, Campus USÖ, hörsal C2, Örebro
    Andersson, Tommy
    Örebro University, School of Medical Sciences.
    Atrial fibrillation and cause of death, sex differences in mortality, and anticoagulation treatment in low-risk patients2018Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    Background: Atrial fibrillation (AF) is the most common arrhythmia but information on cause of death in patients with AF is sparse, and whether individuals at low risk of cerebral infarction (CVL) should receive antico-agulant medication is controversial. Studies of sex differences with respect to mortality risk have shown conflicting results.

    Methods: Data were obtained from Swedish National Registers. In Study I, there were 272 186 AF patients and matched controls and in Studies II and III, 9519 AF patients and no other diagnosis and matched controls. Study IV compared treatment with warfarin to no treatment in 48 433 patients with AF. Hazard ratio (HR) was calculated with 95% confidence intervals and outcome rates as number per 1000 person-years.

    Results: Ischemic heart disease (IHD) was the most common underlying cause of death and was present in 40.2% of AF patients at a HR of 1.7 (1.4-2.1). CVL/stroke was a cause of death in 13.1%, HR 2.7 (1.8-4.0). Among underlying and contributing causes of death, the most common diagnoses were IHD in 43.5%, HR 1.7 (1.4-2.0) and heart failure in 33.1%, HR 2.9 (2.2-3.7). The HRs for mortality in females with AF in age categories ≤65, 65-74, and 75-85 were 2.15, 1.72, and 1.44, and for males 1.76, 1.36, and 1.24. The rates of mortality in females with AF in age categories 55-64, 65-74, and 75-85 were 6.2, 20.7, and 57.3, and for males 8.5, 27.3, and 64.5. In patients 65-74 years, females with a CHA2DS2-VASc score of 2, and males with a score of 1 receiving warfarin treatment showed a significantly reduced risk of cerebral infarc-tion/stroke, HR 0.46 (0.25-0.83) for females and for males, HR 0.39 (0.21-0.73).

    Conclusions: Most common causes of death in AF patients were CVL/stroke, heart failure, and IHD. HR of mortality in patients with AF was higher in females than in males but absolute risk was higher in males with AF compared to females with AF. Anticoagulant therapy was benefi-cial in patients ≥65 years, regardless of the CHA2DS2-VASc score.

    List of papers
    1. All-cause mortality in 272 186 patients hospitalized with incident atrial fibrillation 1995-2008: a Swedish nationwide long-term case-control study
    Open this publication in new window or tab >>All-cause mortality in 272 186 patients hospitalized with incident atrial fibrillation 1995-2008: a Swedish nationwide long-term case-control study
    Show others...
    2013 (English)In: European Heart Journal, ISSN 0195-668X, E-ISSN 1522-9645, Vol. 34, no 14, p. 1061-1067Article in journal (Refereed) Published
    Abstract [en]

    Aims To evaluate long-term all-cause risk of mortality in women and men hospitalized for the first time with atrial fibrillation (AF) compared with matched controls. Methods and results A total of 272 186 patients (44% women) <= 85 years at the time of hospitalization with incidental AF 1995-2008 and 544 344 matched controls free of in-hospital diagnosis of AF were identified. Patients were followed via record linkage of the Swedish National Patient Registry and the Cause of Death Registry. Using Cox regression models, the long-term relative all-cause mortality risk, adjusted for concomitant diseases, in women vs. controls was 2.15, 1.72, and 1.44 (P < 0.001) in the age categories <= 65, 65-74, and 75-85 years, respectively. The corresponding figures for men were 1.76, 1.36, and 1.24 (P < 0.001). Among concomitant diseases, neoplasm, chronic renal failure, and chronic obstructive pulmonary disease contributed most to the increased all-cause mortality vs. controls. In patients with AF as the primary diagnosis, the relative risk of mortality was 1.63, 1.46, and 1.28 (P < 0.001) in women and 1.45, 1.17, and 1.10 (P < 0.001) in men. Conclusion Atrial fibrillation was an independent risk factor of all-cause mortality in patients with incident AF. The concomitant diseases that contributed most were found outside the thromboembolic risk scores. The highest relative risk of mortality was seen in women and in the youngest patients compared with controls, and the differences between genders in each age category were statistically significant.

    Keyword
    Atrial fibrillation, Mortality, Gender, Age, Long term
    National Category
    Cardiac and Cardiovascular Systems
    Research subject
    Cardiology
    Identifiers
    urn:nbn:se:oru:diva-38709 (URN)10.1093/eurheartj/ehs469 (DOI)000317424300014 ()23321349 (PubMedID)2-s2.0-84876218799 (Scopus ID)
    Note

    Funding agencies ar:

    AstraZeneca R&D, Mölndal, Sweden

    Örebro Heart Foundation Research and

    Committee of Örebro University Hospital

    Available from: 2014-11-18 Created: 2014-11-18 Last updated: 2018-03-26Bibliographically approved
    2. Gender-related differences in risk of cardiovascular morbidity and all-cause mortality in patients hospitalized with incident atrial fibrillation without concomitant diseases: A nationwide cohort study of 9519 patients
    Open this publication in new window or tab >>Gender-related differences in risk of cardiovascular morbidity and all-cause mortality in patients hospitalized with incident atrial fibrillation without concomitant diseases: A nationwide cohort study of 9519 patients
    Show others...
    2014 (English)In: International Journal of Cardiology, ISSN 0167-5273, E-ISSN 1874-1754, Vol. 177, no 1, p. 91-99Article in journal (Refereed) Published
    Abstract [en]

    Background: Previous studies of patients with "lone" and "idiopathic" atrial fibrillation (AF) have provided conflicting evidence concerning the development, management and prognosis of this condition.

    Methods: In this nation-wide, retrospective, cohort study, we studied patients diagnosed with incidental AF recorded in national Swedish registries between 1995 and 2008. Controls were matched for age, sex and calendar year of the diagnosis of AF in patients. All subjects were free of any in-hospital diagnosis from 1987 and until patients were diagnosed with AF and also free of any diagnosis within one year from the time of inclusion. Follow-up continued until 2009. We identified 9519 patients (31% women) and 12,468 matched controls.

    Results: Relative risks (RR) versus controls for stroke or transient ischemic attack (TIA) in women were 19.6, 4.4, 3.4 and 2.5 in the age categories <55, 55-64, 65-74 and 75-85, years respectively. Corresponding figures for men were 3.4, 2.5, 1.7 and 1.9. RR for heart failure were 6.6, 6.6, 6.3 and 3.8 in women and 7.8, 4.6, 4.9 and 2.9 in men. All RR were statistically significant with p < 0.01. RR for myocardial infarction and all-cause mortality were statistically significantly increased only in the two oldest age categories in women and 65-74 years in men.

    Conclusions: Patients with AF and no co-morbidities at inclusion had at least a doubled risk of stroke or TIA and a tripled risk of heart failure, through all age categories, as compared to controls. Women were at higher RR of stroke or TIA than men. (C) 2014 The Authors. Published by Elsevier Ireland Ltd. This is an open access article under the CC BY-NC-SA license (http://creativecommons.org/licenses/by-nc-sa/3.0/).

    Place, publisher, year, edition, pages
    Elsevier, 2014
    Keyword
    Atrial fibrillation, Cardiovascular morbidity, Mortality, Cohort, Nationwide
    National Category
    Cardiac and Cardiovascular Systems
    Identifiers
    urn:nbn:se:oru:diva-56310 (URN)10.1016/j.ijcard.2014.09.092 (DOI)000343895000046 ()25499348 (PubMedID)
    Note

    Funding Agencies:

    AstraZeneca RD Mölndal

    Örebro Heart Foundation

    Research Committee of Örebro University Hospital OLL 2012-265231

    Available from: 2017-03-14 Created: 2017-03-14 Last updated: 2018-03-26Bibliographically approved
    3. Patients without comorbidities at the time of diagnosis of atrial fibrillation: causes of death during long-term follow-up compared to matched controls
    Open this publication in new window or tab >>Patients without comorbidities at the time of diagnosis of atrial fibrillation: causes of death during long-term follow-up compared to matched controls
    Show others...
    2017 (English)In: Clinical Cardiology, ISSN 0160-9289, E-ISSN 1932-8737, Vol. 40, no 11, p. 1076-1082Article in journal (Refereed) Published
    Abstract [en]

    BACKGROUND: Little is known about the long-term, cause-specific mortality risk in patients without comorbidities at the time of diagnosis of atrial fibrillation (AF).

    METHODS: From a nation-wide registry of patients hospitalized with incident AF between 1995 and 2008 we identified 9 519 patients with a first diagnosed AF and no comorbidities at the time of AF diagnosis. They were matched with 12 468 controls. The follow-up continued until December 2008. Causes of death were classified according to the ICD-10 codes.

    RESULTS: During follow-up, 11.1% of patients with AF and 8.3% of controls died. Cardiovascular diseases were the most common causes of death and the only diagnoses which showed significantly higher relative risk in patients with AF than controls (HR 2.0, 95% CI 1.8-2.3), and the relative risk was significantly higher in women than in men. Stroke was a more common cause among patients with AF, 13.1% versus 9.7% (HR 2.7, 95% CI 1.8-4.0), while cerebral hemorrhage was more common among controls, 4.7% versus 10.2% (HR 0.9, 95% CI 0.6-1.5). The time from AF diagnosis to death was 6.0 ± 3.1 years.

    CONCLUSIONS: In patients with incident AF and no known comorbidities at the time of AF diagnosis, only cardiovascular diseases were more often causes of death as compared to controls. Women carried a significantly higher relative risk than men.

    Place, publisher, year, edition, pages
    John Wiley & Sons, 2017
    Keyword
    atrial fibrillation, cause of death, idiopathic, morbidity, mortality
    National Category
    Cardiac and Cardiovascular Systems
    Identifiers
    urn:nbn:se:oru:diva-61704 (URN)10.1002/clc.22776 (DOI)000417744800020 ()28841233 (PubMedID)2-s2.0-85028540727 (Scopus ID)
    Funder
    AstraZeneca
    Note

    Funding Agency:

    Örebro Heart Foundation 

    Research Committee of Örebro University Hospital, Sweden 

    Available from: 2017-11-13 Created: 2017-11-13 Last updated: 2018-03-26Bibliographically approved
    4. Patients with atrial fibrillation and outcomes of cerebral infarction in those with treatment of warfarin versus no warfarin with references to CHA(2)DS(2)-VASc score, age and sex: A Swedish nationwide observational study with 48 433 patients
    Open this publication in new window or tab >>Patients with atrial fibrillation and outcomes of cerebral infarction in those with treatment of warfarin versus no warfarin with references to CHA(2)DS(2)-VASc score, age and sex: A Swedish nationwide observational study with 48 433 patients
    Show others...
    2017 (English)In: PLoS ONE, ISSN 1932-6203, E-ISSN 1932-6203, Vol. 12, no 5, article id e0176846Article in journal (Refereed) Published
    Abstract [en]

    Aims: There is controversy in the guidelines as to whether patients with atrial fibrillation and a low risk of stroke should be treated with anticoagulation, especially those with a CHA(2)DS(2)-VASc score of 1 point.

    Methods: In a retrospective, nationwide cohort study, we used the Swedish National Patient Registry, the National Prescribed Drugs Registry, the Swedish Registry of Education and the Population and Housing Census Registry. 48 433 patients were identified between 1 January 2006 and 31 December 2008 with incident atrial fibrillation who were divided in age categories, sex and a CHA(2)DS(2)-VASc score of 0, 1, 2 and >= 3 and they were included in a time-varying analysis of warfarin treatment versus no treatment. The primary end-point was cerebral infarction and stroke, and patients were followed until 31 December 2009.

    Results: Patients with 1 point from the CHA(2)DS(2)-VASc score showed the following adjusted hazard ratios (HR) with a 95% confidence interval: men 65-74 years 0.46 (0.25-0.83), men < 65 years 1.11 (0.56-2.23) and women < 65 years 2.13 (0.94-4.82), where HR < 1 indicates protection with warfarin. In patients < 65 years and 2 points, HR in men was 0.35 (0.18-0.69) and in women 1.84 (0.86-3.94) while, in women with at least 3 points, HR was 0.31 (0.16-0.59). In patients 65-74 years and 2 points, HR in men was 0.37 (0.23-0.59) and in women 0.39 ( 0.21-0.73). Categories including age >= 65 years or >= 3 points showed a statistically significant protection from warfarin.

    Conclusions: Our results support that treatment with anticoagulation may be considered in all patients with an incident atrial fibrillation diagnosis and an age of 65 years and older, i.e. also when the CHA(2)DS(2)-VASc score is 1.

    Place, publisher, year, edition, pages
    Public Library of Science, 2017
    National Category
    Cardiac and Cardiovascular Systems
    Research subject
    Cardiology
    Identifiers
    urn:nbn:se:oru:diva-57914 (URN)10.1371/journal.pone.0176846 (DOI)000400648500084 ()28472091 (PubMedID)2-s2.0-85019090489 (Scopus ID)
    Note

    Funding Agencies:

    Research Committee of Örebro University  0LL 2012-265231 

    AstraZeneca RD Mölndal  

    Örebro Heart Foundation 

    Available from: 2017-06-08 Created: 2017-06-08 Last updated: 2018-03-26Bibliographically approved
  • Zekavat, Amir Reza
    et al.
    Örebro University, School of Science and Technology.
    Jansson, Anton
    Örebro University, School of Science and Technology.
    Gundlach, Carsten
    Technical University of Denmark, Kongens Lyngby, Denmark.
    Pejryd, Lars
    Örebro University, School of Science and Technology.
    Effect of X-ray Computed Tomography Magnification on Surface Morphology Investigation of Additive Manufacturing Surfaces2018In: 8th Conference on Industrial Computed Tomography, 2018Conference paper (Refereed)
    Abstract [en]

    Additive manufacturing (AM) in the last decade has become a widespread manufacturing process. The possibilities that such technologies have provided for manufacturing of complex geometries compared to conventional manufacturing processes has made them popular in many branches of industry. Despite the advantages of these methods, there are limiting issues which needs to be thoroughly investigated. A limiting factor, especially for powder bed AM parts is their undesired surface finish. AM surfaces can be investigated using various methods such as optical or tactile methods, however for complex AM surfaces they are incapable of capturing all details such as deep valleys at surface level. X-ray computed tomography (CT), can provide 3D information of complex AM surfaces and does not have limitations that line of sight and tactile methods have. There are several parameters in CT investigation, which can potentially alter the obtained results. Depending on the CT magnification at which the data is acquired the result specifically surface level detail might be affected. The aim of this study is to investigate the effect of different CT magnifications on surface texture measurement of additively manufactured surfaces. Surface features, including highest peaks and deepest valleys contributing to maximum and minimum thickness of specimen from different magnifications were compared with each other. The result shows that, the lower magnification scans underestimate both peak and valley measurements in comparison to the highest magnification scan. Measurement of valleys and re-entrant features were underestimated at more considerable level. The results from this study provide some understanding regarding surface morphology assessment of AM parts and the level of detail which can be expected depending on the CT magnification.

  • Lind, Martin
    Örebro University, School of Humanities, Education and Social Sciences.
    Samordning av arbetsmarknadsinsatser: En utvärdering av samverkansuppdrag mellan Förvaltningen för funktionshinder och Vuxen- och arbetsmarknadsförvaltningen i Örebro kommun2016Report (Other academic)
  • Lind, Martin
    Örebro University, School of Humanities, Education and Social Sciences.
    BoendeByggarna: Kartläggning av en social upphandling för framgångsrik introduktion på arbetsmarknaden2015Report (Other academic)
  • Lind, Martin
    Örebro University, School of Humanities, Education and Social Sciences.
    Från nyanländ till plåtslagare: Kartläggning av en modell för framgångsrik introduktion på arbetsmarknaden2015Report (Other academic)
  • Kroon, Åsa
    Örebro University, School of Humanities, Education and Social Sciences.
    The design and organization of a shared ‘live’ multi-screen sports event on web television2015In: The 65th Annual Conference of the International Communication Association, 2015Conference paper (Refereed)
  • Banaee, Hadi
    Örebro University, School of Science and Technology.
    From Numerical Sensor Data to Semantic Representations: A Data-driven Approach for Generating Linguistic Descriptions2018Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    In our daily lives, sensors recordings are becoming more and more ubiquitous. With the increased availability of data comes the increased need of systems that can represent the data in human interpretable concepts. In order to describe unknown observations in natural language, an artificial intelligence system must deal with several issues involving perception, concept formation, and linguistic description. These issues cover various subfields within artificial intelligence, such as machine learning, cognitive science, and natural language generation.The aim of this thesis is to address the problem of semantically modelling and describing numerical observations from sensor data. This thesis introduces data-driven approaches to perform the tasks of mining numerical data and creating semantic representations of the derived information in order to describe unseen but interesting observations in natural language.The research considers creating a semantic representation using the theory of conceptual spaces. In particular, the central contribution of this thesis is to present a data-driven approach that automatically constructs conceptual spaces from labelled numerical data sets. This constructed conceptual space then utilises semantic inference techniques to derive linguistic interpretations for novel unknown observations. Another contribution of this thesis is to explore an instantiation of the proposed approach in a real-world application. Specifically, this research investigates a case study where the proposed approach is used to describe unknown time series patterns that emerge from physiological sensor data. This instantiation first presents automatic data analysis methods to extract time series patterns and temporal rules from multiple channels of physiological sensor data, and then applies various linguistic description approaches (including the proposed semantic representation based on conceptual spaces) to generate human-readable natural language descriptions for such time series patterns and temporal rules.The main outcome of this thesis is the use of data-driven strategies that enable the system to reveal and explain aspects of sensor data which may otherwise be difficult to capture by knowledge-driven techniques alone. Briefly put, the thesis aims to automate the process whereby unknown observations of data can be 1) numerically analysed, 2) semantically represented, and eventually 3) linguistically described.

  • Andersson, Renée
    Örebro University, School of Humanities, Education and Social Sciences.
    Gender mainstreaming as feminist politics: A critical analysis of the pursuit of gender equality in Swedish local government2018Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    Gender mainstreaming is often described as a strategy to increase gender equality in states and other institutions and/or to make them more gender aware. It should however be considered a contested concept, and the aim of this thesis is to produce a critical perspective and empirical knowledge about whether, and if so how, gender mainstreaming contributes to a more (gender) equal society. The production of gender mainstreaming as gender equality policy is investigated, using both feminist new institutionalism and discourse theory.

    The study investigates whether, and if so how, gender mainstreaming is facilitating new public management by transforming the ambitions of feminist politics into a neoliberal strategy adapted for public administration.

    The case examined in this study is a local government gender mainstreaming project conducted in a municipality in Sweden. The case also includes vertical and horizontal outlooks and is categorized as a critical case. To study "what is not there" in the empirical material, the concepts of silences and silencing are used as both theoretical and methodological tools.

    The thesis shows that gender mainstreaming produces a gender equality policy that is disconnected from political parties, and that gender mainstreaming becomes a common good. This, I argue, produces a non-political politics, which includes a governing technique that privileges political consensus, articulated in terms of non-conflict and win-win.

    The thesis identifies a conflation between gender mainstreaming, as a strategy, with the policy objective of gender equality. Gender mainstreaming did not create space for addressing gender-based violence, or include the voice of the women’s movement, from which it can be concluded that gender mainstreaming does not contribute to feminist politics. This could have societal consequences and can influence, or even hinder, actual political change.

    List of papers
    1. The myth of Sweden’s success: A deconstructive reading of the discourses in gender mainstreaming texts
    Open this publication in new window or tab >>The myth of Sweden’s success: A deconstructive reading of the discourses in gender mainstreaming texts
    2017 (English)In: The European Journal of Women's Studies, ISSN 1350-5068, E-ISSN 1461-7420Article in journal (Refereed) Epub ahead of print
    Abstract [en]

    This article investigates discourses of Sweden's success in gender mainstreaming. Using the theoretical concept of myth, discourse analysis is performed on different categories of texts (including academic texts, grey papers and official reports). The aim is to analyse how this discourse of success is constructed and to increase the understanding of its components. The themes identified in the reading include adaptation, integration, volume and initiatives. In conclusion, it is argued that a conflation of gender mainstreaming (viewed as a strategy) with gender equality (as a policy objective) has been a vital part of the construction of Sweden as the best case of gender mainstreaming.

    Place, publisher, year, edition, pages
    Sage Publications, 2017
    Keyword
    Discourse, gender equality, gender mainstreaming, myth, Sweden
    National Category
    Political Science (excluding Public Administration Studies and Globalisation Studies) Gender Studies
    Identifiers
    urn:nbn:se:oru:diva-65904 (URN)10.1177/1350506817743531 (DOI)
    Available from: 2018-03-20 Created: 2018-03-20 Last updated: 2018-03-20Bibliographically approved
    2. Learning from Gender Mainstreaming Education: Limitations of Education as a Policy Objective
    Open this publication in new window or tab >>Learning from Gender Mainstreaming Education: Limitations of Education as a Policy Objective
    (English)Manuscript (preprint) (Other academic)
    Keyword
    Gender mainstreaming, governmentality, public administration
    National Category
    Political Science (excluding Public Administration Studies and Globalisation Studies)
    Identifiers
    urn:nbn:se:oru:diva-65905 (URN)
    Available from: 2018-03-20 Created: 2018-03-20 Last updated: 2018-03-20Bibliographically approved
    3. The Question of Feminism in Gender Mainstreaming: A Case of Non-conflict in Local Politics
    Open this publication in new window or tab >>The Question of Feminism in Gender Mainstreaming: A Case of Non-conflict in Local Politics
    2015 (English)In: NORA: Nordic Journal of Feminist and Gender Research, ISSN 0803-8740, E-ISSN 1502-394X, Vol. 23, no 3, p. 203-219Article in journal (Refereed) Published
    Abstract [en]

    This article discusses gender equality and how and why a gender mainstreaming strategy avoids the question of gender conflict. The making of gender-equality work is studied by investigating how feminism is talked about and rejected in a specific gender mainstreaming project in the municipality of Örebro, Sweden. Drawing upon the theoretical concepts of hegemony and discourse, the focus is on the silences—the unspoken questions and problems—surrounding the project. I examine how the exclusion of feminism and conflict is articulated when gender mainstreaming is introduced as a new way of doing gender-equality work in the municipality. The struggles identified show that feminism is rejected because it is seen as being in opposition to (1) professionalism and (2) legitimate political issues. I conclude that within the local discourse of gender mainstreaming there is a notion that this form of gender-equality work ought to be performed without harmful or threatening gender conflicts. This means that the strategy of gender mainstreaming constitutes a short-cut to bypass controversial problems like equal treatment, special efforts for women, and men's privileges in gender-equality work.

    Place, publisher, year, edition, pages
    Taylor & Francis, 2015
    Keyword
    gender mainstreaming
    National Category
    Political Science Gender Studies
    Research subject
    Political Science; Gender Studies
    Identifiers
    urn:nbn:se:oru:diva-46762 (URN)10.1080/08038740.2015.1066443 (DOI)000359906300005 ()2-s2.0-84938788637 (Scopus ID)
    Available from: 2015-11-24 Created: 2015-11-24 Last updated: 2018-03-20Bibliographically approved
    4. Att göra kön i kommunal politik: lokala variationer av gender mainstreaming och kvinnofrid
    Open this publication in new window or tab >>Att göra kön i kommunal politik: lokala variationer av gender mainstreaming och kvinnofrid
    2014 (Swedish)In: Tidskrift för Genusvetenskap, ISSN 1654-5443, E-ISSN 2001-1377, Vol. 35, no 2-3, p. 55-80Article in journal (Refereed) Published
    Place, publisher, year, edition, pages
    Karlstad: Karlstads universitet, 2014
    National Category
    Gender Studies
    Research subject
    Gender Studies
    Identifiers
    urn:nbn:se:oru:diva-38523 (URN)
    Available from: 2014-11-11 Created: 2014-11-11 Last updated: 2018-03-20Bibliographically approved
  • Gustafsson, Johanna
    et al.
    Örebro University, School of Health Sciences.
    Peralta, Julia
    Örebro University, School of Health Sciences.
    Danermark, Berth
    Örebro University, School of Health Sciences.
    Supported Employment and Social Inclusion: Experiences of Workers with Disabilities in Wage Subsidized Employment in Sweden2018In: Scandinavian Journal of Disability Research, ISSN 1501-7419, E-ISSN 1745-3011, Vol. 20, no 1, p. 26-36Article in journal (Refereed)
    Abstract [en]

    Labour market policies targeting people with disabilities primarily focus on establishing a working life based on reaching and procuring employment. Less attention is directed towards the qualitative aspects of working conditions or opportunities to retain employment. This study seeks to examine how people with disabilities who, with the help of Supported Employment (SE) methods, are establishing themselves in the labour market, experience social inclusion at their workplaces and how their working conditions influence their experiences with social inclusion. Data were collected in semi-structured interviews. Two themes were prominent in the interviewees’ experiences with social inclusion: the importance of being a valued worker and the sense of social belonging. Competence is important to feeling valued, as is working in fair working conditions. Disclosure of disability often helps to create fairness. The sense of social belonging arises from natural support and mattering to others. Important conditions that increase social inclusion are job-matching and natural support. The SE method can therefore contribute to the creation of social inclusion by ensuring that the matching process is well thought out and by utilizing strategies for inclusion, such as encouragement of natural support.

  • Lennvall, Tomas
    et al.
    RISE SICS, Västerås, Sweden.
    Gidlund, Mikael
    Mid Sweden University, Sweden.
    Åkerberg, Johan
    ABB Corporate Research, Sweden.
    Challenges when bringing IoT into Industrial Automation2017In: 2017 IEEE AFRICON: Science, Technology and Innovation for Africa, AFRICON 2017 / [ed] Darryn R. Cornish, IEEE, 2017, p. 905-910, article id 8095602Conference paper (Refereed)
    Abstract [en]

    The Internet of Things (IoT) is captivating the society because of its potential to rapidly transform businesses and people’s lives. It is widely believed that IoT will also transform the industrial automation business in terms of improved productivity, less cost, flexibility, and increased revenues. Hence, there are some challenges that needs to be addressed when IoT is introduced to the industrial automation domain. This paperaims to present realistic requirements and highlights identified challenges such as security, interoperability, deterministic and low latency communication, and how the required availability (uptime) can be kept. Moreover, the paper also point out the need of standardization and sustainable business models. The conclusion is that introducing IoT devices and connecting them directly to cloud services is not straightforward for process automation.

  • Eliasson, Kent
    et al.
    Umeå universitet, Umeå, Sweden; Tillväxtanalys, Östersund, Sweden.
    Hansson, Pär
    Örebro University, Örebro University School of Business. Tillväxtanalys, Östersund, Sweden.
    Lindvert, Markus
    Tillväxtanalys, Östersund, Sweden.
    Utländska uppköp: hot eller möjlighet?2017In: Ekonomisk Debatt, ISSN 0345-2646, Vol. 45, no 7, p. 41-55Article in journal (Other (popular science, discussion, etc.))
  • Johansson, Sara
    Örebro University, School of Law, Psychology and Social Work.
    Socialt arbete och våldsbejakande extremism2017In: Våldsbejakande extremism: En forskarantologi / [ed] Christofer Edling och Amir Rostami, Stockholm, Sweden: Elanders Sverige AB , 2017, p. 257-289Chapter in book (Refereed)
  • Björkenheim, Anna
    Örebro University, School of Medical Sciences.
    Catheter ablation for atrial fibrillation: effects on rhythm, symptoms and health-related quality of life2018Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    Background: AF ablation is an increasingly used treatment in patients with AF to improve patient-reported outcomes (PROs). Atrioventricular junction ablation (AVJA) is a palliative treatment option in therapy refractory AF that improves PROs but renders the patient pacemaker dependent.

    Aims: To evaluate rhythm control and PROs before and up to two years after AF ablation. To analyze the long-term incidence of and predictors of hospitalization for HF and all-cause mortality in patients who underwent AVJA and right ventricular pacing.

    Methods and Results: Fifty-four patients underwent AF ablation and both continuous rhythm monitoring via an implantable loop recorder (ILR) and intermittent rhythm monitoring three, six, 12 and 24 months after ablation. 76 % of patients had at least one AF recurrence, of whom 24 % were only detected by ILR. One third of symptom recordings did not show AF. The AF-specific AF6 scores, physician-assessed EHRA symptom class and both SF-36 summary scores all improved significantly from before to two years after ablation. There was a weak correlation between the change in AF6 scores and EHRA class from before to six and 12 months but not to 24 months after ablation. Responders to ablation (AF burden < 0.5 %), reached age- and sex-matched norms in all SF-36 domains, but non-responders only in social functioning and MCS. All AF6 scores showed at least moderate improvement in both responders and non-responders. Higher AF burden was independently associated with poorer PCS and AF6 scores. In 162 patients who underwent AVJA, hospitalization for HF occurred in 20 % of patients (two-year cumula-tive incidence 9.1 %) and 22 % died (two-year cumulative incidence 5.2 %) during a median follow-up of five years. QRS ≥ 120 ms and left atrial diame-ter were independent predictors of hospitalization for HF, and hypertension and previous HF of death.

    Conclusions: Continuous rhythm monitoring was superior to intermittent monitoring. The AF-specific AF6 was more sensitive to changes related to AF burden after AF ablation than both EHRA class and the SF-36. The long-term hospitalization rate for HF and all-cause mortality was low after AVJA.

    List of papers
    1. Predictors of hospitalization for heart failure and of all-cause mortality after atrioventricular nodal ablation and right ventricular pacing for atrial fibrillation
    Open this publication in new window or tab >>Predictors of hospitalization for heart failure and of all-cause mortality after atrioventricular nodal ablation and right ventricular pacing for atrial fibrillation
    Show others...
    2014 (English)In: Europace, ISSN 1099-5129, E-ISSN 1532-2092, Vol. 16, no 12, p. 1772-1778Article in journal (Refereed) Published
    Abstract [en]

    Aims: Atrioventricular junction ablation (AVJA) is a highly effective treatment in patients with therapy refractory atrial fibrillation (AF) but renders the patient pacemaker dependent. We aimed to analyse the long-term incidence of hospitalization for heart failure (HF) and all-cause mortality in patients who underwent AVJA because of AF and to determine predictors for HF and mortality.

    Methods and results: We retrospectively enrolled 162 consecutive patients, mean age 67 +/- 9 years, 48% women, who underwent AVJA because of symptomatic AF refractory to pharmacological treatment (n = 117) or unsuccessful repeated pulmonary vein isolation (n = 45). Hospitalization for HF occurred in 32 (20%) patients and 35 (22%) patients died, representing a cumulative incidence for hospitalization for HF and mortality over the first 2 years after AVJA of 9.1 and 5.2%, respectively. Hospitalization for HF occurred to the same extent in patients who failed pharmacological treatment as in patients with repeated pulmonary vein isolation (PVI), although the mortality was slightly higher in the former group. QRS prolongation >= 120 ms and left atrial diameter were independent predictors of hospitalization for HF, while hypertension and previous HF were independent predictors of death.

    Conclusion: The long-term hospitalization rate for HF and all-cause mortality was low, which implies that long-term ventricular pacing was not harmful in this patient population, including patients with unsuccessful repeated PVI.

    Place, publisher, year, edition, pages
    Oxford University Press, 2014
    Keyword
    Atrial fibrillation, Atrioventricular junction ablation, Heart failure, Hospitalization, Mortality
    National Category
    Cardiac and Cardiovascular Systems
    Research subject
    Cardiology
    Identifiers
    urn:nbn:se:oru:diva-42367 (URN)10.1093/europace/euu171 (DOI)000347104900016 ()25031234 (PubMedID)
    Note

    Funding Agency:

    Örebro Heart Foundation

    Research Committee of Örebro University Hospital

    Available from: 2015-02-04 Created: 2015-02-03 Last updated: 2018-03-28Bibliographically approved
    2. Rhythm Control and its Relation to Symptoms During the First Two Years After Radiofrequency Ablation for Atrial Fibrillation
    Open this publication in new window or tab >>Rhythm Control and its Relation to Symptoms During the First Two Years After Radiofrequency Ablation for Atrial Fibrillation
    Show others...
    2016 (English)In: Pacing and Clinical Electrophysiology, ISSN 0147-8389, E-ISSN 1540-8159, Vol. 39, no 9, p. 914-925Article in journal (Refereed) Published
    Abstract [en]

    Objective: To evaluate rhythm control up to two years after AF ablation and its relation to reported symptoms.

    Background: The implantable loop recorder (ILR) continuously records the ECG, has an automatic AF detection algorithm and a possibility for patients to activate an ECG recording during symptoms.

    Methods: Fifty-seven patients (mean age 57±9 years, 60% male, 88% paroxysmal AF) underwent AF ablation following ILR implantation. Device data were downloaded at the ablation and three, six, 12, 18 and 24 months after ablation.

    Results: Fifty-four patients completed the two-year follow-up. Thirteen (24%) patients had no AF episodes detected by ILR during follow-up. Ten of 41 patients (24%) with AF recurrence were only detected by ILR and AF recurrences were detected earlier by ILR (P<0.001). The median AF burden in patients with AF recurrence was 5.7% (IQR 0.4-14.4) and was even lower in patients with AF only detected by ILR (P = 0.001). Forty-eight % of the patients indicated symptoms via the patient activator but 33% of those recordings were not due to AF. Early AF recurrence (within 3 months) was highly associated with later AF recurrence (P<0.001). AF burden >0.5% and longest >6h before the ablation were independent predictors of AF recurrence during intermittent but not continuous monitoring.

    Conclusions: After AF ablation, the AF burden was low throughout the 24 months follow-up. Nevertheless, symptoms were commonly indicated but one third of patient activated recordings did not show AF. Continuous monitoring was superior to intermittent follow-up in detecting AF episodes and assessing the AF burden.

    Clinical trial registration: URL: http://clinicaltrials.gov. Unique Identifier: NCT00697359.

    Place, publisher, year, edition, pages
    Hoboken, USA: Wiley-Blackwell Publishing Inc., 2016
    Keyword
    Atrial fibrillation, catheter ablation, implantable loop recorder, monitoring, symptoms
    National Category
    Cardiac and Cardiovascular Systems
    Research subject
    Cardiology
    Identifiers
    urn:nbn:se:oru:diva-51530 (URN)10.1111/pace.12916 (DOI)000383572900002 ()27418324 (PubMedID)2-s2.0-84987723704 (Scopus ID)
    Note

    Funding Agencies:

    Medtronic

    Örebro heart foundation

    Research Committee of Örebro University Hospital, Örebro, Sweden

    Available from: 2016-08-04 Created: 2016-08-02 Last updated: 2018-04-20Bibliographically approved
    3. Assessment of Atrial Fibrillation–Specific Symptoms Before and 2 Years After Atrial Fibrillation Ablation: Do Patients and Physicians Differ in Their Perception of Symptom Relief?
    Open this publication in new window or tab >>Assessment of Atrial Fibrillation–Specific Symptoms Before and 2 Years After Atrial Fibrillation Ablation: Do Patients and Physicians Differ in Their Perception of Symptom Relief?
    Show others...
    2017 (English)In: JACC: Clinical Electrophysiology, ISSN 2405-500X, Vol. 3, no 10, p. 1168-1176Article in journal (Refereed) Published
    Abstract [en]

    Objectives: The aim of this study was to evaluate patient-reported and physician-assessed atrial fibrillation (AF)–related symptoms after AF ablation.

    Background: Success of AF ablation is usually defined as freedom from AF, although symptom relief is often patients’ desire.

    Methods: Symptom relief was assessed as perceived by patients using the short, validated, AF-specific symptom questionnaire AF6 and as classified by physicians using the European Heart Rhythm Association (EHRA) classification at baseline and 6, 12, and 24 months after AF ablation. Recurrence of arrhythmia was documented by continuous electrocardiographic monitoring.

    Results: In total, 54 patients completed the 24-month follow-up. All 6 items on the AF6, AF6 sum score, and EHRA class improved significantly over time. The greatest improvement was seen during the first 6 months after ablation, but AF6 scores showed continued improvement up to 12 months, in contrast to EHRA class. There was a low correlation between AF6 score and EHRA class, but the predictive ability was low. Both AF6 scores and EHRA class were significantly correlated with AF burden at all times after ablation. A change of >9 points in AF6 sum score corresponded to a meaningful reduction in symptom severity.

    Conclusion: Patient-reported and physician-assessed outcomes were both useful in assessing symptom relief after AF ablation, although patient-reported outcomes were more sensitive tools. There was also a discrepancy between patient-reported and physician-assessed outcomes after ablation. Freedom from AF and a low AF burden most often resulted in a reduction of symptoms, but symptom relief also occurred despite little effect on the arrhythmia.

    Place, publisher, year, edition, pages
    Elsevier, 2017
    Keyword
    atrial fibrillation, catheter ablation, symptoms, beta adrenergic receptor blocking agent, warfarin, ablation therapy, adult, aged, Article, cardiac patient, classification, controlled study, electrocardiography, european heart rhythm association classification, female, follow up, freedom, general condition improvement, human, major clinical study, male, multicenter study, patient-reported outcome, perception, physician, priority journal, recurrent disease
    National Category
    Cardiac and Cardiovascular Systems
    Identifiers
    urn:nbn:se:oru:diva-66207 (URN)10.1016/j.jacep.2017.04.003 (DOI)2-s2.0-85021385993 (Scopus ID)
    Available from: 2018-03-28 Created: 2018-03-28 Last updated: 2018-04-09Bibliographically approved
    4. Patient-Reported Outcomes in Relation to Continuously Monitored Rhythm Before and During 2 Years After Atrial Fibrillation Ablation Using a Disease-Specific and a Generic Instrument
    Open this publication in new window or tab >>Patient-Reported Outcomes in Relation to Continuously Monitored Rhythm Before and During 2 Years After Atrial Fibrillation Ablation Using a Disease-Specific and a Generic Instrument
    Show others...
    2018 (English)In: Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, ISSN 2047-9980, E-ISSN 2047-9980, Vol. 7, no 5, article id e008362Article in journal (Refereed) Published
    Abstract [en]

    BACKGROUND: Atrial fibrillation (AF) ablation improves patient-reported outcomes, irrespective of mode of intermittent rhythm monitoring. We evaluated the use of an AF-specific and a generic patient-reported outcomes instrument during continuous rhythm monitoring 2 years after AF ablation.

    METHODS AND RESULTS: Fifty-four patients completed the generic 36-Item Short-Form Health Survey and the AF-specific AF6 questionnaires before and 6, 12, and 24 months after AF ablation. All patients underwent continuous ECG monitoring via an implantable loop recorder. The generic patient-reported outcomes scores were compared with those of a Swedish age- and sex-matched population. After ablation, both summary scores reached normative levels at 24 months, while role-physical and vitality remained lower than norms. Responders to ablation (AF burden <0.5%) reached the norms in all individual 36-Item Short-Form Health Survey domains, while nonresponders (AF burden >0.5%) reached norms only in social functioning and mental component summary. All AF6 items and the sum score showed moderate to large improvement in both responders and nonresponders, although responders showed significantly greater improvement in all items except item 1 from before to 24 months after ablation. Higher AF burden was independently associated with poorer physical component summary and AF6 sum score.

    CONCLUSIONS: The AF-specific AF6 questionnaire was more sensitive to changes related to AF burden than the generic 36-Item Short-Form Health Survey. Patients improved as documented by both instruments, but a higher AF burden after ablation was associated with poorer AF-specific patient-reported outcomes and poorer generic physical but not mental health. Our results support the use of an AF-specific instrument, alone or in combination with a generic instrument, to assess the effect of ablation.

    CLINICAL TRIAL REGISTRATION: URL: https://www.clinicaltrials.gov. Unique identifier: NCT00697359.

    Place, publisher, year, edition, pages
    Wiley-Blackwell Publishing Inc., 2018
    Keyword
    Atrial fibrillation, catheter ablation, quality of life
    National Category
    Cardiac and Cardiovascular Systems
    Identifiers
    urn:nbn:se:oru:diva-65285 (URN)10.1161/JAHA.117.008362 (DOI)29478027 (PubMedID)
    Available from: 2018-02-27 Created: 2018-02-27 Last updated: 2018-03-28Bibliographically approved
  • Pernow, Ylva
    et al.
    Department of Molecular Medicine and Surgery, Endocrine and Diabetes Unit, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden.
    Shahror, Rami
    NGBI, Neuropsychiatric Research Laboratory, Faculty of Medicine and Health, School of Medical Sciences, Örebro University, Örebro, Sweden.
    Acharya, Shikha
    NGBI, Neuropsychiatric Research Laboratory, Faculty of Medicine and Health, School of Medical Sciences, Örebro University, Örebro, Sweden.
    Jahnson, Lena
    Department of Internal Medicine, Örebro University Hospital, Örebro, Sweden.
    Vumma, Ravi
    Faculty of Health and Life Sciences, Department of Chemistry and Biomedical Sciences, Linnaeus University, Kalmar, Sweden.
    Venizelos, Nikolaos
    Örebro University, School of Medical Sciences.
    Aberrant tryptophan transport in cultured fibroblast from patients with Male Idiopathic Osteoporosis: An in vitro study2018In: Bone Reports, ISSN 2352-1872, Vol. 8, p. 25-28Article in journal (Refereed)
    Abstract [en]

    It has been demonstrated, that long-term chronic tryptophan deficiency, results in decreased serotonin synthesis, which may lead to low bone mass and low bone formation. Findings from studies in male patients with idiopathic osteoporosis suggested a decreased transport of tryptophan in erythrocytes of osteoporotic patients, indicating that serotonin system defects may be involved in the etiology of low bone mass. Tryptophan is the precursor of serotonin, and a disturbed transport of tryptophan is implicated in altered serotonin synthesis. However, no study has investigated the tryptophan transport kinetics in MIO patients. The aim of this study is to investigate the kinetic parameters of tryptophan transport in fibroblasts derived from MIO patients compared to age and sex matched controls. Fibroblast cells were cultured from skin biopsies obtained from 14 patients diagnosed with Male Idiopathic Osteoporosis and from 13 healthy age-sex matched controls, without a diagnosis of osteoporosis. Transport of the amino acid tryptophan across the cell membrane was measured by the cluster tray method. The kinetic parameters, maximal transport capacity (Vmax) and affinity constant (Km) were determined by using the Lineweaver-Burke plot equation. The results of this study have shown a significantly lower mean value for Vmax (p = 0.0138) and lower Km mean value (p = 0.0009) of tryptophan transport in fibroblasts of MIO patients compared to the control group. A lower Vmax implied a decreased tryptophan transport availability in MIO patients. In conclusion, reduced cellular tryptophan availability in MIO patients might result in reduced brain serotonin synthesis and its endogenous levels in peripheral tissues, and this may contribute to low bone mass/formation. The findings of the present study could contribute to the etiology of idiopathic osteoporosis and for the development of novel approaches for diagnosis, treatment and management strategies of MIO.

  • Meehan, Adrian
    Örebro University, School of Medical Sciences.
    Lithium-associated hyperparathyroidism: Prevalence, Pathophysiology, Management2018Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    Lithium has been used in the treatment of bipolar disorder, formerly called manic depression, for nearly seven decades. Lithium-associated hyperparathyroidism (LHPT) is an ill-defined and less well known possible side-effect of chronic lithium therapy and was first described in 1973. The condition has been considered to be rare, though there exists conflicting evidence as to its prevalence, its pathophysiological background, and, if and when identified, what the appropriate medical or surgical treatment should be. The principal aim of this thesis was to understand and more comprehensively characterise this condition through studying a large patient cohort, with regards its prevalence, development, and additionally by providing an evaluation of surgical management up until now.

    In Study I a population of 423 lithium-treated out-patients (251 women, 172 men) were recruited from Jönköping and Örebro County. We found that 18% met the criteria for hyperparathyroidism (HPT) and that a further 21% had intermittent episodes of hypercalcaemia. We then examined, in Study II, the effects of lithium only in patients with bipolar disorder and compared them, firstly, to patients with bipolar disorder without lithium and, secondly, to a control population. In total, 563 individuals participated in the study. Hypercalcaemia was found to be strongly associated to lithium therapy (adjusted OR 13.45; 95% CI 3.09, 58.55; p=0.001). Study III is a descriptive study of calcium homeostasis in 297 lithium-treated patients from Jönköping where three main groups could be discerned: 178 were normocalcaemic (60%), 102 hypercalcaemic (34%), and 17 hypocalcaemic (6%). Many patients demonstrate robust fluctuations in serum calcium intermittently. Of those with suspected LHPT, 31% had urinary calcium excretion values be-low 1.2 mmol/24hrs. Study IV analysed surgical results of 78 parathyroidectomies in 71 patients with concurrent lithium therapy. In strong contrast to surgical outcomes in those with primary HPT, the overall cure-rate was lower (58%) and the predominant histological diagnosis was hyperplasia (52%). Two patients had double adenomas.

    Factors which should be particularly taken into consideration while monitoring lithium-treated patients are age, gender and lithium-duration.

    List of papers
    1. The prevalence of lithium-associated hyperparathyroidism in a large Swedish population attending psychiatric outpatient units
    Open this publication in new window or tab >>The prevalence of lithium-associated hyperparathyroidism in a large Swedish population attending psychiatric outpatient units
    Show others...
    2015 (English)In: Journal of Clinical Psychopharmacology, ISSN 0271-0749, E-ISSN 1533-712X, Vol. 35, no 3, p. 279-285Article in journal (Refereed) Published
    Abstract [en]

    Objective: This retrospective study determined the prevalence of lithium-associated hyperparathyroidism (LHPT) in 2 geographically defined, equivalent populations in Sweden, with no other selection bias.

    Methods: The medical journals of all patients receiving lithium treatment were examined specifically regarding their biochemistry: calcium, parathyroid hormone (PTH), creatinine, and vitamin D. The condition LHPT was defined biochemically. All patient data were noted, and the prevalence of the condition could thereby be calculated.

    Results: A total of 423 patients were included (251 women and 172 men; 3: 2), treated over a mean of 13.5 years (range, 1-46 years), aged 19 to 92. 77 patients (18%) were identified with LHTP whose median serum calcium-was 2.55 mmol/L and PTH was 99 ng/L. A further 21% showed tendencies toward hypercalcemia. Forty-three percent had vitamin D insufficiency. Five patients (approximately 1%) had undergone parathyroidectomy.

    Conclusion: The prevalence of LHPT is high and often goes undetected. Vitamin D insufficiency is common as is polypharmacy. Surgery, for unclear reasons, has not been performed extensively, possibly because of limited knowledge of the underlying pathophysiology or surgery's significance. We present standard recommendations on patient management and suggest continual, specific follow-up including the monitoring of calcium, PTH, and vitamin D at least annually. Surgery should be considered with intention to improve psychiatric well-being and provide multiorgan protection.

    Keyword
    hypercalcemia; hyperparathyroidism; Lithium; prevalence
    National Category
    Pharmacology and Toxicology Psychiatry
    Research subject
    Psychiatry
    Identifiers
    urn:nbn:se:oru:diva-44863 (URN)10.1097/JCP.0000000000000303 (DOI)000353817400011 ()25853371 (PubMedID)2-s2.0-84929161233 (Scopus ID)
    Available from: 2015-06-09 Created: 2015-06-09 Last updated: 2018-03-15Bibliographically approved
    2. Lithium-Associated Hypercalcemia: Pathophysiology, Prevalence, Management
    Open this publication in new window or tab >>Lithium-Associated Hypercalcemia: Pathophysiology, Prevalence, Management
    Show others...
    2018 (English)In: World Journal of Surgery, ISSN 0364-2313, E-ISSN 1432-2323, Vol. 42, no 2, p. 415-424Article in journal (Refereed) Published
    Abstract [en]

    BACKGROUND: Lithium-associated hypercalcemia (LAH) is an ill-defined endocrinopathy. The aim of the present study was to determine the prevalence of hypercalcemia in a cohort of bipolar patients (BP) with and without concomitant lithium treatment and to study surgical outcomes for lithium-associated hyperparathyroidism.

    METHODS: Retrospective data, including laboratory results, surgical outcomes and medications, were collected from 313 BP treated with lithium from two psychiatric outpatient units in central Sweden. In addition, data were collected from 148 BP without lithium and a randomly selected control population of 102 individuals. Logistic regression was used to compare odds of hypercalcemia in these respective populations.

    RESULTS: The prevalence of lithium-associated hypercalcemia was 26%. Mild hypercalcemia was detected in 87 out of 563 study participants. The odds of hypercalcemia were significantly higher in BP with lithium treatment compared with BP unexposed to lithium (adjusted OR 13.45; 95% CI 3.09, 58.55; p = 0.001). No significant difference was detected between BP without lithium and control population (adjusted OR 2.40; 95% CI 0.38, 15.41; p = 0.355). Seven BP with lithium underwent surgery where an average of two parathyroid glands was removed. Parathyroid hyperplasia was present in four patients (57%) at the initial operation. One patient had persistent disease after the initial operation, and six patients had recurrent disease at follow-up time which was on average 10 years.

    CONCLUSION: The high prevalence of LAH justifies the regular monitoring of calcium homeostasis, particularly in high-risk groups. If surgery is necessary, bilateral neck exploration should be considered in patients on chronic lithium treatment. Prospective studies are needed.

    Place, publisher, year, edition, pages
    Springer, 2018
    National Category
    Psychiatry Surgery
    Identifiers
    urn:nbn:se:oru:diva-63997 (URN)10.1007/s00268-017-4328-5 (DOI)000419886700015 ()29260296 (PubMedID)2-s2.0-85038405849 (Scopus ID)
    Available from: 2018-01-09 Created: 2018-01-09 Last updated: 2018-03-15Bibliographically approved
    3. Characterization of Calcium homeostasis in Lithium-treated Patients: Disturbances reveal both hypercalcemia and hypocalcemia
    Open this publication in new window or tab >>Characterization of Calcium homeostasis in Lithium-treated Patients: Disturbances reveal both hypercalcemia and hypocalcemia
    (English)Manuscript (preprint) (Other academic)
    National Category
    Endocrinology and Diabetes
    Identifiers
    urn:nbn:se:oru:diva-65826 (URN)
    Available from: 2018-03-15 Created: 2018-03-15 Last updated: 2018-03-15Bibliographically approved
    4. Long-term results of surgery for lithium-associated hyperparathyroidism
    Open this publication in new window or tab >>Long-term results of surgery for lithium-associated hyperparathyroidism
    Show others...
    2010 (English)In: British Journal of Surgery, ISSN 0007-1323, E-ISSN 1365-2168, Vol. 97, no 11, p. 1680-1685Article in journal (Refereed) Published
    Abstract [en]

    BACKGROUND: Lithium therapy for affective bipolar disease is frequently associated with hyperparathyroidism (HPT), but the results of surgical treatment are virtually unknown. The aim of this retrospective review was to analyse the long-term outcome after surgery for lithium-induced HPT in a large series of patients.

    METHODS: Seventy-one patients on chronic lithium therapy who underwent surgery in three university and three district hospitals in Sweden were followed for a median of 6.3 years. Histopathology, complications of surgery and normocalcaemia at 6 months after surgery and last follow-up were analysed.

    RESULTS: The primary histopathological diagnoses were adenoma (45 per cent), double adenomas (3 per cent) and hyperplasia (52 per cent). No permanent paresis of the recurrent laryngeal nerve was recorded but 13 per cent of the patients suffered from permanent hypoparathyroidism. At follow-up, the rate of persistent and recurrent HPT was 42 per cent regardless of the histopathological diagnosis.

    CONCLUSION: The results of conventional surgery for lithium-associated HPT are poor. The surgical approach should be adjusted for the multiglandular disease that is usually the cause of HPT in patients on chronic lithium therapy.

    National Category
    Surgery
    Identifiers
    urn:nbn:se:oru:diva-65825 (URN)10.1002/bjs.7199 (DOI)000282651100015 ()20665482 (PubMedID)2-s2.0-78049394343 (Scopus ID)
    Available from: 2018-03-15 Created: 2018-03-15 Last updated: 2018-03-15Bibliographically approved
  • Lidskog, Rolf
    et al.
    Örebro University, School of Humanities, Education and Social Sciences.
    Bishop, Kevin
    Department of Aquatic Sciences and Assessment, The Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Eklöf, Karin
    Department of Aquatic Sciences and Assessment, The Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Ring, Eva
    The Forestry Research Institute of Sweden (Skogforsk), Uppsala Science Park, Uppsala, Sweden.
    Åkerblom, Staffan
    Department of Aquatic Sciences and Assessment, The Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Sandström, Camilla
    Department of Political Science, Umeå University, Umeå, Sweden.
    From Wicked Problem to Governable Entity?: The Effects of Forestry on Mercury in Aquatic Ecosystems2018In: Forest Policy and Economics, ISSN 1389-9341, E-ISSN 1872-7050, Vol. 90, p. 90-96Article in journal (Refereed)
    Abstract [en]

    In all Swedish lakes, the concentration of mercury (Hg) in fish exceeds the European Union threshold limit. While the ultimate source of Hg is primarily airborne emissions from fossil energy, forestry plays a small but important role because some forestry operations help mobilize and transform Hg, increasing Hg loads in downstream aquatic ecosystems. Simultaneously, climate change is placing additional demands on forests to provide biomass as a substitute for fossil fuel. Thus, decision-makers are facing a complex situation, a “wicked problem,” when it comes to how to handle the problem of forestry’s effects on Hg in aquatic ecosystems while at the same time securing other ecosystem services. In order to explore forestry’s degree of responsibility as well as possible solutions to this problem in Sweden, a transdisciplinary method has been used consisting of a structured dialogue with actors from relevant governmental agencies, forest companies, and forest associations. The analysis shows that while the issue can be addressed constructively, the complex character of the problem requires consideration of not only management practices for forestry but also current regulatory goals and environmental objectives. The Hg problem represents a class of difficult issues for forestry where stand- or property-based production has an impact on a greater spatial scale. This means that regulating the more direct impacts of forestry needs to be weighed against the implications this regulation may have on the overall issue of ecosystem services.

  • Dalal, Koustuv
    Örebro University, School of Health Sciences.
    Health and development: scenario in top and bottom 20*2 countries2017In: Socialmedicinsk tidskrift, ISSN 2000-4192, Vol. 94, no 6, p. 778-787Article in journal (Refereed)
    Abstract [en]

    Encouraged by the philosophy of Hans Rosling, the current study has tried to visualize development and health perspectives of the bottom 20 and top 20 countries ranked by health access quality (HAQ) index based on Socio-demographic Index (SDI), during last two and half decades (1990-2015). Also, the study has included BRICS countries (Brazil, Russia, India, China and South Africa) and the USA. The study has used secondary data from UNDP, WHO, World Bank and Global Burden of Disease and risk factor studies. Healthcare, health systems and development scenario of bottom 20 and top 20 countries ranked by HAQ index 2015 under SDI quartiles and BRICS countries and USA are presented in three different tables. It is evident that HAQ based on SDI quartiles reflects the better development and health outcomes. Instead of only 46 countries, more countries should be included and more health outcomes could be included in future studies.

  • GBD 2015, Eastern Mediterranean Region Intentional Injuries Collaborators
    et al.
    Dalal, Koustuv
    Örebro University, School of Health Sciences.
    Mokdad, Ali H.
    Institute for Health Metrics and Evaluation, University of Washington, Seattle, Washington, United States.
    Intentional injuries in the Eastern Mediterranean Region, 1990-2015: findings from the Global Burden of Disease 2015 study2017In: International Journal of Public Health, ISSN 1661-8556, E-ISSN 1661-8564Article in journal (Refereed)
    Abstract [en]

    Objectives: We used GBD 2015 findings to measure the burden of intentional injuries in the Eastern Mediterranean Region (EMR) between 1990 and 2015.

    Methods: The Global Burden of Disease (GBD) study defines intentional injuries as a combination of self-harm (including suicide), interpersonal violence, collective violence (war), and legal intervention. We estimated number of deaths, years of life lost (YLLs), years lived with disability (YLDs), and disability-adjusted life years (DALYs) for each type of intentional injuries.

    Results: In 2015, 28,695 individuals (95% UI: 25,474-37,832) died from self-harm, 35,626 (95% UI: 20,947-41,857) from interpersonal violence, and 143,858 (95% UI: 63,554-223,092) from collective violence and legal interventions. In 2015, collective violence and legal intervention was the fifth-leading cause of DALYs in the EMR and the leading cause in Syria, Yemen, Iraq, Afghanistan, and Libya; they account for 49.7% of total DALYs in Syria.

    Conclusions: Our findings call for increased efforts to stabilize the region and assist in rebuilding the health systems, as well as increasing transparency and employing preventive strategies to reduce self-harm and interpersonal injuries.

  • Bergwall, Andreas
    Örebro University, School of Science and Technology.
    Conceptualizing reasoning-and-proving opportunities in textbook expositions: Cases from secondary calculus2017In: Proceedings of the Tenth Congress of the European Society for Research in Mathematics Education (CERME10, February 1-5, 2017) / [ed] Dooley, T., & Gueudet, G., Dublin, Ireland: European Society for Research in Mathematics Education , 2017, p. 91-98Conference paper (Refereed)
    Abstract [en]

    Several recent textbook studies focus on opportunities to learn reasoning-and-proving. They typically investigate the extent to which justifications are general proofs and what opportunities exist for learning important elements of mathematical reasoning. In this paper, I discuss how a particular analytical framework for this might be refined. Based on an in-depth analysis of certain textbook passages in upper secondary calculus textbooks, I make an account for analytical issues encountered during this process and identify aspects of reasoning-and-proving in textbooks that might be missed unless the framework is refined. Among them there are characterizations of generality, use of different representations, logical and mathematical structure, and ordering of material and student activities. Finally, implications beyond textbook research are discussed.

  • Martinsson, Dennis
    Juridiska institutionen, Stockholms universitet, Stockholm, Sweden.
    Att undervisa om juridiska begrepp: pedagogiska utmaningar och tänkbara strategier2017In: Juridisk Publikation, ISSN 2000-2920, no 2, p. 429-450Article in journal (Refereed)
    Abstract [sv]

    Ämnesdidaktiska frågor inom juristutbildningen har den senaste tiden tilldragit sig ett ökat intresse. I den här artikeln diskuterar jag en fråga som ständigt är aktuell för universitetslärare, nämligen den pedagogiska utmaningen i att undervisa om begrepp. Framställningen tar avstamp i en förhållandevis allmängiltig pedagogisk teori (socialkonstruktionism). Utifrån denna teori diskuteras utmaningen att göra juridiska begrepp begripliga i undervisningssammanhang. För att göra diskussionen gripbar, utgår jag från det straffrättsliga begreppet gärningsculpa, som många juriststudenter stöter på under straffrättskursen. Detta kan naturligtvis bytas ut mot vilket juridiskt begrepp som helst, varför artikeln kan vara givande även för den som undervisar inom andra rättsområden. De tankar som kommer till uttryck i artikeln bygger såväl på rön i högskolepedagogisk litteratur som på mina egna undervisningserfarenheter.

  • Widehammar, Cathrine
    et al.
    Örebro University, School of Health Sciences. Department of Pediatrics, Faculty of Medicine and Health, Örebro University, Örebro, Sweden; University Health Care Research Center, Faculty of Medicine and Health, Örebro University, Örebro, Sweden; .
    Lidström, Helene
    Department of Social and Welfare Studies, Faculty of Medicine, Linköping University, Linköping, Sweden.
    Hermansson, Liselotte
    Örebro University Hospital. Örebro University, School of Health Sciences. University Health Care Research Center, Faculty of Medicine and Health, Örebro University, Örebro, Sweden; Department of Prosthetics and Orthotics, Faculty of Medicine and Health, Örebro University, Örebro, Sweden.
    Environmental barriers to participation and facilitators for use of three types of assistive technology devices2017In: Nobelday Festivities Orebro University, 2017Conference paper (Refereed)
    Abstract [en]

    Background: In rehabilitation, assistive technology (AT) is prescribed in order to improve activity and participation for individuals with disability. Research shows that many devices are not used to the extent or to the benefits expected. The aim of this study was to compare the presence of environmental barriers to participation and facilitators for AT use and study the relation between barriers and AT use in three different types of AT devices.

    Methods: A cross-sectional survey was conducted. Inclusion criteria were: ≥1 year experience as user of myoelectric prosthesis (MEP), powered mobility device (PMD), or assistive technology for cognition (ATC) and age 20-90 years. The survey contained the Swedish version of Craig Hospital Inventory of Environmental Factors and a study-specific questionnaire focusing on facilitating factors. Overall, 156 participants answered the survey. Non-parametric tests were used for comparisons.

    Results: Barriers to participation were significantly lowest in MEP users (md=0.12; p<0.001), and highest in ATC users (md=1.56; p<0.001-p=0.048). A positive correlation between fewer barriers and higher use of MEP was seen (r=0.30, p=0.038). Compared to the other groups, users of ATC with more use reported more barriers for participation. The greatest barriers to participation were: Natural environment, Surroundings, and, Information. Most support came from Relatives and Professionals.

    Conclusions: There is a difference in how users of different AT devices experience the environment in terms of barriers for participation and facilitators for use. The environment may facilitate AT use but barriers in the environment can still restrict participation in AT users. Future research should comprise the influence of AT use on participation.

  • Schindler, Maike
    et al.
    Örebro University, School of Science and Technology.
    Lilienthal, Achim
    Örebro University, School of Science and Technology.
    Eye-Tracking As A Tool For Investigating Mathematical Creativity2017In: The 10th Mathematical Creativity and Giftedness International Conference: Proceedings, Nicosia, Cyprus: Department of Education, University of Cyprus , 2017, p. 45-50Conference paper (Refereed)
    Abstract [en]

    Mathematical creativity as a key ability in our increasingly automated and interconnected, high-technology based society and economy is increasingly in the focus of mathematics education research. The recent scientific discussion in this domain is shifting from a product view, on written solutions and drawings, to a process view, which aims to investigate the different stages of how students come up with creative ideas. The latter is, however, a challenge. In this theoretical-methodological paper, we present and discuss the opportunities that eye-tracking offers for studying creativity in a process view. We discuss in which way eye-tracking allows to obtain novel answers to the questions of how original ideas come up, how they evolve and what leads to the so-called Eureka!-moment. We focus on video-based eye tracking approaches, discuss pros and cons of screen-based and mobile eye tracking, and illustrate methods of data analysis and their benefits for research on mathematical creativity.

  • Schindler, Maike
    et al.
    Örebro University, School of Science and Technology.
    Lilienthal, Achim
    Örebro University, School of Science and Technology.
    Eye-Tracking and its Domain-Specific Interpretation: A Stimulated Recall Study on Eye Movements in Geometrical Tasks2017In: Proceedings of the 41st Conference of the International Group for the Psychology of Mathematics Education / [ed] Kaur, B., Ho, W.K., Toh, T.L., & Choy, B.H, Singapore: PME , 2017, Vol. 4, p. 153-160Conference paper (Refereed)
    Abstract [en]

    Eye-tracking offers various possibilities for mathematics education. Yet, even in suitably visually presented tasks, interpretation of eye-tracking data is non-trivial. A key reason is that the interpretation of eye-tracking data is context-sensitive. To reduce ambiguity and uncertainty, we studied the interpretation of eye movements in a specific domain: geometrical mathematical creativity tasks. We present results from a qualitative empirical study in which we analyzed a Stimulated Recall Interview where a student watched the eye-tracking overlaid video of his work on a task. Our results hint at how eye movements can be interpreted and show limitations and opportunities of eye tracking in the domain of mathematical geometry tasks and beyond.

  • Lilienthal, Achim
    et al.
    Örebro University, School of Science and Technology.
    Schindler, Maike
    Örebro University, School of Science and Technology.
    Conducting Dual Portable Eye-Tracking in Mathematical Creativity Research2017In: Proceedings the 41th Conference of the International Group for the Psychology of Mathematics Education / [ed] Kaur, B., Ho, W.K., Toh, T.L., & Choy, B.H, Singapore: PME , 2017, Vol. 1, p. 233-233Conference paper (Refereed)
    Abstract [en]

    Eye-tracking opens a window to the focus of attention of persons and promises to allow studying, e.g., creative processes “in vivo” (Nüssli, 2011). Most eye-tracking studies in mathematics education research focus on single students. However, following a Vygotskyan notion of learning and development where the individual and the social are dialectically interrelated, eye-tracking studies of collaborating persons appear beneficial for understanding students’ learning in their social facet. Dual eye-tracking, where two persons’ eye-movements are recorded and related to a joint coordinate-system, has hardly been used in mathematics education research. Especially dual portable eye-tracking (DPET) with goggles has hardly been explored due to its technical challenges compared to screen-based eye-tracking.In our interdisciplinary research project between mathematics education and computer science, we conduct DPET for studying collective mathematical creativity (Levenson, 2011) in a process perspective. DPET offers certain advantages, including to carry out paper and pen tasks in rather natural settings. Our research interests are: conducting DPET (technical), investigating opportunities and limitations of DPET for studying students’ collective creativity (methodological), and studying students’ collective creative problem solving (empirical).We carried out experiments with two pairs of university students wearing Pupil Pro eye tracking goggles. The students were given 45 min to solve a geometry problem in as many ways as possible. For our analysis, we first programmed MATLAB code to synchronize data from both participants’ goggles; resulting in a video displaying both students’ eye-movements projected on the task sheet, the sound recorded by the goggles, and additional information, e.g. pupil dilation. With these videos we expect to get insights into how students’ attentions meet, if students’ eye-movements follow one another, or verbal inputs, etc. We expect insights into promotive aspects in students’ collaboration: e.g., if pointing on the figure or intensive verbal communication promote students’ joint attention (cf. Nüssli, 2011). Finally, we think that the expected insights can contribute to existing research on collective mathematical creativity, especially to the question of how to enhance students’ creative collaboration.

  • Monroy, Javier
    et al.
    Machine Perception and Intelligent Robotics group (MAPIR), Instituto de Investigación Biomedica de Malaga (IBIMA), Universidad de Malaga, Malaga, Spain.
    Hernandez Bennetts, Victor
    Örebro University, School of Science and Technology.
    Fan, Han
    Örebro University, School of Science and Technology.
    Lilienthal, Achim
    Örebro University, School of Science and Technology.
    Gonzalez-Jimenez, Javier
    Machine Perception and Intelligent Robotics group (MAPIR), Instituto de Investigación Biomedica de Malaga (IBIMA), Universidad de Malaga, Malaga, Spain.
    GADEN: A 3D Gas Dispersion Simulator for Mobile Robot Olfaction in Realistic Environments2017In: Sensors, ISSN 1424-8220, E-ISSN 1424-8220, Vol. 17, no 7, p. 1479-1494Article in journal (Refereed)
    Abstract [en]

    This work presents a simulation framework developed under the widely used Robot Operating System (ROS) to enable the validation of robotics systems and gas sensing algorithms under realistic environments. The framework is rooted in the principles of computational fluid dynamics and filament dispersion theory, modeling wind flow and gas dispersion in 3D real-world scenarios (i.e., accounting for walls, furniture, etc.). Moreover, it integrates the simulation of different environmental sensors, such as metal oxide gas sensors, photo ionization detectors, or anemometers. We illustrate the potential and applicability of the proposed tool by presenting a simulation case in a complex and realistic office-like environment where gas leaks of different chemicals occur simultaneously. Furthermore, we accomplish quantitative and qualitative validation by comparing our simulated results against real-world data recorded inside a wind tunnel where methane was released under different wind flow profiles. Based on these results, we conclude that our simulation framework can provide a good approximation to real world measurements when advective airflows are present in the environment.

  • Widehammar, Cathrine
    et al.
    Örebro University, School of Health Sciences. Department of Pediatrics, Faculty of Medicine and Health, Örebro University, Örebro, Sweden; University Health Care Research Center, Faculty of medicine and health, Örebro University, Örebro, Sweden.
    Lidström, Helene
    Department of Social and Welfare Studies, Faculty of Medicine, Linköping University, Linköping, Sweden.
    Hermansson, Liselotte
    Örebro University, School of Health Sciences. Örebro University Hospital. University Health Care Research Center, Faculty of medicine and health, Örebro University, Örebro, Sweden; Department of Prosthetics and Orthotics, Örebro University, Örebro, Sweden.
    Environmental barriers to participation and facilitators for use of three types of assistive technology devices2017In: MEC 2017 - A Sense of What´s to Come: Myoelectric Controls and Upper Limb Prosthetics Symposium, Fredericton, New Brunswick, Canada: University of New Brunswick , 2017, p. 36-36Conference paper (Refereed)
  • Westberg, Johannes
    et al.
    Örebro University, School of Humanities, Education and Social Sciences.
    Prytz, Johan
    Uppsala University, Uppsala, Sweden.
    Farliga föreställningar präglar debatt om skolan2018Other (Other (popular science, discussion, etc.))