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  • 251.
    Andersson, Linus
    et al.
    University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational and Public Health Sciences, Occupational health science. University of Gävle, Centre for Musculoskeletal Research. Department of Psychology, Umeå University, Umeå, Sweden.
    Claeson, Anna-Sara
    Department of Psychology, Umeå University, Umeå, Sweden.
    Not getting used to the smell – Chemical intolerance as lack of habituation2017In: Biological Psychology, ISSN 0301-0511, E-ISSN 1873-6246, Vol. 129, no Suppl. C, p. 377-Article in journal (Refereed)
    Abstract [en]

    Background:

    Chemical intolerance is a prevalent, medically unexplained symptom characterized by diverse symptoms following weak chemical exposure. The symptom-eliciting exposures are often odorous, and include perfume, fabric softeners and fragrant flowers. Several explanatory mechanisms have been proposed, but empirical data is scarce. By reanalyzing data from previous studies, we aimed to find a criterion for chemical intolerance based on reactions to actual chemical exposure.

    Method:

    We grouped participants from six previous studies based on their pattern of habituation to weak olfactory (amylacetate and n-butanol) and trigeminal (CO2 and acrolein) compounds. In two studies utilizing event-related potentials, and one functional magnetic resonance imaging study, stimuli were presented intranasally using a dynamic olfactometer. An exposure chamber that allowed full body exposure was used in the remaining three studies.

    Results:

    Individuals who did not habituate to weak chemical exposure, compared with those who did, reported (1) increasing symptoms during the course of the exposure, (2) greater problems with odors in everyday life, and (3) greater levels of everyday distress. They (4) performed worse on cognitively demanding tasks during exposure, and differed in measures of (5) the autonomic nervoussystem(respiratoryrateandpulseratevariability),(6)low-level inflammation and oxidative stress, and (7) the so called pain matrix of the brain.

    Discussion:

    Lack of habituation to weak chemical exposure may be a fruitful method of defining a sub-group of chemical intolerance.

  • 252.
    Andersson, Linus
    et al.
    University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational and Public Health Sciences, Occupational health science. University of Gävle, Centre for Musculoskeletal Research.
    Claeson, Anna-Sara
    Department of Psychology, Umeå University, Umeå, Sweden.
    Dantoft, Thomas Meinertz
    Danish Research Centre for Chemical Sensitivities, Copenhagen University Hospital Gentofte, Gentofte, Denmark; Department of Systems Biology, Center for Biological Sequence Analysis, Technical University of Denmark, Lyngby, Denmark.
    Skovbjerg, Sine
    Danish Research Centre for Chemical Sensitivities, Copenhagen University Hospital Gentofte, Gentofte, Denmark.
    Lind, Nina
    Department of Psychology, Umeå University, Umeå, Sweden.
    Nordin, Steven
    Department of Psychology, Umeå University, Umeå, Sweden.
    Chemosensory perception, symptoms and autonomic responses during chemical exposure in multiple chemical sensitivity2016In: International Archives of Occupational and Environmental Health, ISSN 0340-0131, E-ISSN 1432-1246, Vol. 89, no 1, p. 79-88Article in journal (Refereed)
    Abstract [en]

    PURPOSE: Multiple chemical sensitivity (MCS) is a prevalent medically unexplained symptom characterized by symptom reactions to everyday chemical exposure below hygienic thresholds. The aim of this study was to investigate the expressions of hyper-reactivity in MCS during whole-body exposure to low concentrations of the odorant n-butanol.

    METHODS: We exposed 18 participants with MCS and 18 non-ill controls to a low concentration of the odorant n-butanol using an exposure chamber. The first 10 min constituted blank exposure, after which the n-butanol concentration increased and reached a plateau at 11.5 mg/m(3).

    RESULTS: MCS participants, compared with controls, reported greater perceived odor intensities, more unpleasantness to the exposure and increasing symptoms over time. MCS participants also expressed higher pulse rate and lower pulse rate variability than controls did. No group differences were found for breathing rate or tonic electrodermal activity responses.

    CONCLUSIONS: We conclude that MCS sufferers differ from healthy controls in terms of autonomic responses, symptoms and chemosensory perception during chemical exposure.

  • 253.
    Andersson, Linus
    et al.
    University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational and Public Health Sciences, Occupational health science. University of Gävle, Centre for Musculoskeletal Research. Department of Psychology, Umeå University, Umeå, Sweden.
    Claeson, Anna-Sara
    Department of Psychology, Umeå University, Umeå, Sweden.
    Nyberg, Lars
    Department of Integrative Medical Biology and Physiology, Umeå University, Umeå, Sweden; Department of Radiation Sciences, Umeå University, Umeå, Sweden.
    Nordin, Steven
    Department of Psychology, Umeå University, Umeå, Sweden.
    Short-term olfactory sensitization involves brain networks relevant for pain, and indicates chemical intolerance2017In: International journal of hygiene and environmental health (Print), ISSN 1438-4639, E-ISSN 1618-131X, Vol. 220, no 2, p. 503-509Article in journal (Refereed)
    Abstract [en]

    Chemical intolerance is a medically unexplained affliction that implies deleterious reactions to non-toxic everyday chemical exposure. Sensitization (i.e. increased reactivity to repeated, invariant stimulation) to odorous stimulation is an important component in theoretical explanations of chemical intolerance, but empirical evidence is scarce. We hypothesized that (1) individuals who sensitize to repeated olfactory stimulation, compared with those who habituate, would express a lower blood oxygenated level dependent (BOLD) response in key inhibitory areas such as the rACC, and higher signal in pain/saliency detection regions, as well as primary and/or secondary olfactory projection areas; and (2) olfactory sensitization, compared with habituation, would be associated with greater self-reported chemical intolerance. Moreover, we assessed whether olfactory sensitization was paralleled by comparable trigeminal processing – in terms of perceptual ratings and BOLD responses. We grouped women from a previous functional magnetic imaging study based on intensity ratings of repeated amyl acetate exposure over time. Fourteen women sensitized to the exposure, 15 habituated, and 20 were considered “intermediate” (i.e. neither sensitizers nor habituaters). Olfactory sensitizers, compared with habituaters, displayed a BOLD-pattern in line with the hypothesis, and reported greater problems with odours in everyday life. They also expressed greater reactions to CO2 in terms of both perceived intensity and BOLD signal. The similarities with pain are discussed.

  • 254.
    Andersson, Linus
    et al.
    University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational and Public Health Sciences, Occupational health science. University of Gävle, Centre for Musculoskeletal Research.
    Claeson, Anna-Sara
    Department of Psychology, Umeå University, Sweden.
    Sandberg, Petra
    Department of Psychology, Umeå University, Sweden.
    Highlighting the large variation in perceived properties of odors over time2017In: Chemical Senses, ISSN 0379-864X, E-ISSN 1464-3553, Vol. 42, no 2, p. E26-Article in journal (Refereed)
    Abstract [en]

    Individuals differ considerably when rating the perceived properties of odors, especially over time. A second glance at previously published data-sets from our laboratory revealed that the same invariant exposure often produced both floor and roof effects. An odor that at the end of the exposure ses-sion was regarded as non-existent by one participant, could border the “absoulte maximum” rating category in another. We provide re-analyses from four exposure studies where we illustrate the perceptual variability over time, and outcomes associated with such ratings. We note that high, compared with low ratings of odor intensity over time is associated with ratings of unpleasantness and symptoms, but also with everyday distress, cognitive performance, autonomous nerv-ous system activity and deviating responses in the so-called pain or saliency matrix of the brain. We bring an open ques-tion to ECRO regarding how this considerable variability should be interpreted, and what the consequenced are for research and for setting exposure limits.

  • 255.
    Andersson, Linus
    et al.
    University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational and Public Health Sciences, Occupational health science. University of Gävle, Centre for Musculoskeletal Research. Department of Psychology, Umeå University, Umeå, Sweden.
    Sandberg, Petra
    Department of Psychology, Umeå University, Umeå, Sweden.
    Olofsson, Jonas K.
    Department of Psychology, Stockholm University, Stockholm, Sweden.
    Nordin, Steven
    Department of Psychology, Umeå University, Umeå, Sweden.
    Effects of Task Demands on Olfactory, Auditory, and Visual Event-Related Potentials Suggest Similar Top-Down Modulation Across Senses2018In: Chemical Senses, ISSN 0379-864X, E-ISSN 1464-3553, Vol. 43, no 2, p. 129-134, article id bjx082Article in journal (Refereed)
    Abstract [en]

    A widely held view is that top-down modulation of sensory information relies on an amodal control network that acts through the thalamus to regulate incoming signals. Olfaction lacks a direct thalamic projection, which suggests that it may differ from other modalities in this regard. We investigated the late positive complex (LPC) amplitudes of event-related potentials (ERP) from 28 participants, elicited by intensity-matched olfactory, auditory and visual stimuli, during a condition of focused attention, a neutral condition, and a condition in which stimuli were to be actively ignored. Amplitudes were largest during the attend condition, lowest during the ignore condition, with the neutral condition in between. A Bayesian analysis resulted in strong evidence for similar effects of task across sensory modalities. We conclude that olfaction, despite its unique neural projections, does not differ from audition and vision in terms of task-dependent neural modulation of the LPC.

  • 256.
    Andersson, Maria
    et al.
    Department of Psychology, University of Gothenburg, Göteborg, Sweden .
    Eriksson, Ola
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering, Environmental engineering.
    von Borgstede, Chris
    Department of Psychology, University of Gothenburg, Göteborg, Sweden .
    The Effects of Environmental Management Systems on Source Separation in the Work and Home Settings2012In: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 4, no 6, p. 1292-1308Article in journal (Refereed)
    Abstract [en]

    Measures that challenge the generation of waste are needed to address the global problem of the increasing volumes of waste that are generated in both private homes and workplaces. Source separation at the workplace is commonly implemented by environmental management systems (EMS). In the present study, the relationship between source separation at work and at home was investigated. A questionnaire that maps psychological and behavioural predictors of source separation was distributed to employees at different workplaces. The results show that respondents with awareness of EMS report higher levels of source separation at work, stronger environmental concern, personal and social norms, and perceive source separation to be less difficult. Furthermore, the results support the notion that after the adoption of EMS at the workplace, source separation at work spills over into source separation in the household. The potential implications for environmental management systems are discussed.

  • 257.
    Andersson, Martin
    et al.
    KTH Royal Institute of Technology, Stockholm, Sweden.
    Sosa, Mario
    KTH Royal Institute of Technology, Stockholm, Sweden.
    Sjöberg, Sören
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Mechanical Engineering.
    Olofsson, Ulf
    KTH Royal Institute of Technology, Stockholm, Sweden.
    Effect of Assembly Errors in Back-to-Back Gear Efficiency Testing2015In: Power Transmission Engineeing, Vol. December, p. 72-77Article in journal (Other academic)
  • 258.
    Andersson, Michael
    et al.
    Department of Transportation and Logistics Chalmers University of Technology.
    Olsson, Göte
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för industriell ekonomi.
    A simulation based decision support approach for operational capacity planning in a customer order driven assembly line1998In: Proceedings of the 1998 Winter Simulation Conference / [ed] Medeiros, D. J., Watson, E. F., Carson, J. S., and Manivannan, M. S., IEEE , 1998Conference paper (Refereed)
    Abstract [en]

    The paper reports on a project in the area of simulation based decision support (SBDS) at the operational level of the manufacturing system. The purpose of the project was to explore and describe the possibilities to use a standard discrete event simulation package for capacity planning in a situation where labor was a primary and scarce production resource. This has been done through a case study at a Radio Base Station (RBS) assembly line at Ericsson Radio System, Gavle in Sweden. Results from the study are a conceptual structure for a SBDS system and a prototype simulation system tailored for the RBS-2000 assembly line. The system has been tested in a simulated environment and results indicate a delivery precision improvement of eleven percent. Conclusions from the study are that this kind of tool for operational decision support offers a flexible decision support environment and that the need for high quality information and information collecting systems are crucial for the success of such tools.

  • 259.
    Andersson, Mikael
    University of Gävle, Department of Technology and Built Environment. Industriell ekonomi.
    Discrete Event Operational Simulation in the Manufacturing System1999Licentiate thesis, monograph (Other scientific)
  • 260.
    Andersson, Roland
    et al.
    KTH.
    Söderberg, Bo
    University of Gävle, Faculty of Education and Business Studies, Department of Business and Economic Studies, Real estate administration.
    Financing roads and railways with decentralized real estate taxes: the case of Sweden2012In: The annals of regional science, ISSN 0570-1864, E-ISSN 1432-0592, Vol. 48, no 3, p. 839-853Article in journal (Refereed)
    Abstract [en]

    Roads and railways in Sweden are mainly financed with national government taxes. However, the regional distribution of benefits differs widely from that of tax payments. As a consequence, overspending is likely to occur. A condition for efficiency is that the collective of users should pay for such projects. Therefore, we propose a new regional order for financing projects: government expenditures for transportation projects should be transferred to regions as well as the real estate tax to finance them. We present estimates of the size of such expenditures and of the income from real estate taxes following decentralization to regions.

  • 261. Andersson, Roland
    et al.
    Söderberg, Bo
    University of Gävle, Department of Business Administration and Economics. Fastighetsekonomi.
    Internal rents and the ownership of state properties: experiences from Sweden2008Report (Other academic)
  • 262. Andersson, Roland
    et al.
    Söderberg, Bo
    University of Gävle, Department of Business Administration and Economics.
    Regionala fastighetsskatter kan ge bättre infrastruktur2008In: Ekonomisk Debatt, ISSN 0345-2646, Vol. 36, no 6, p. 57-69Article in journal (Other (popular science, discussion, etc.))
  • 263. Andersson, Roland
    et al.
    Söderberg, Bo
    University of Gävle, Department of Business Administration and Economics, Ämnesavdelningen för företagsekonomi.
    Vad bör staten göra som fastighetsägare?2006In: Ekonomisk Debatt, ISSN 0345-2646, Vol. 34, no 3, p. 18-29Article in journal (Other academic)
  • 264. Andersson, Roland
    et al.
    Söderberg, Bo
    University of Gävle, Department of Business Administration and Economics, Ämnesavdelningen för företagsekonomi.
    Vad tänker Mona Sahlin göra åt den orättvisa hyresregleringen?2005In: Ekonomisk Debatt, ISSN 0345-2646, Vol. 33, no 2, p. 44-46Article in journal (Other (popular science, discussion, etc.))
  • 265. Andersson, Therese
    et al.
    Hall, Maria
    Ensamkommande barns integration: en kvalitativ studie av socialarbetares erfarenheter2013In: Ensamkommande flyktingbarn: utifrån perspektivet socialt arbete / [ed] Fereshteh Ahmadi & My Lilja, Gävle: Gävle University Press , 2013, p. 51-77Chapter in book (Other academic)
  • 266.
    Andersson-Sköld, Yvonne
    et al.
    Department of Earth Sciences, University of Gothenburg, Gothenburg, Sweden; Department of Architecture and Civil Engineering, Chalmers University of Technology, Gothenburg, Sweden.
    Klingberg, Jenny
    Department of Earth Sciences, University of Gothenburg, Gothenburg, Sweden.
    Gunnarsson, Bengt
    Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden.
    Cullinane, Kevin
    School of Business Economics and Law, University of Gothenburg, Gothenburg, Sweden.
    Gustafsson, Ingela
    City of Gothenburg, Parks and Landscape Administration, Gothenburg, Sweden.
    Hedblom, Marcus
    Department of Forest Resource Management, Landscape Analysis, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Knez, Igor
    University of Gävle, Faculty of Health and Occupational Studies, Department of Social Work and Psychology, Psychology.
    Lindberg, Fredrik
    Department of Earth Sciences, University of Gothenburg, Gothenburg, Sweden.
    Ode Sang, Åsa
    Department of Landscape Architecture, Planning and Management, Swedish University of Agricultural Sciences, Alnarp, Sweden.
    Pleijel, Håkan
    Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden.
    Thorsson, Pontus
    Division of Applied Acoustics, Chalmers University of Technology, Gothenburg, Sweden.
    Thorsson, Sofia
    Urban Climate Group, Department of Earth Sciences, University of Gothenburg, Gothenburg, Sweden.
    A framework for assessing urban greenery's effects and valuing its ecosystem services2018In: Journal of Environmental Management, ISSN 0301-4797, E-ISSN 1095-8630, Vol. 205, p. 274-285, article id S0301-4797(17)30940-4Article in journal (Refereed)
    Abstract [en]

    Ongoing urban exploitation is increasing pressure to transform urban green spaces, while there is increasing awareness that greenery provides a range of important benefits to city residents. In efforts to help resolve associated problems we have developed a framework for integrated assessments of ecosystem service (ES) benefits and values provided by urban greenery, based on the ecosystem service cascade model. The aim is to provide a method for assessing the contribution to, and valuing, multiple ES provided by urban greenery that can be readily applied in routine planning processes. The framework is unique as it recognizes that an urban greenery comprises several components and functions that can contribute to multiple ecosystem services in one or more ways via different functional traits (e.g. foliage characteristics) for which readily measured indicators have been identified. The framework consists of five steps including compilation of an inventory of indicator; application of effectivity factors to rate indicators' effectiveness; estimation of effects; estimation of benefits for each ES; estimation of the total ES value of the ecosystem. The framework was applied to assess ecosystem services provided by trees, shrubs, herbs, birds, and bees, in green areas spanning an urban gradient in Gothenburg, Sweden. Estimates of perceived values of ecosystem services were obtained from interviews with the public and workshop activities with civil servants. The framework is systematic and transparent at all stages and appears to have potential utility in the existing spatial planning processes.

  • 267.
    Anderzén, Ingrid
    et al.
    Department of Public Health and Caring Sciences, Uppsala University.
    Karlsson, Thomas
    University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational and Public Health Sciences, Occupational health science. University of Gävle, Centre for Musculoskeletal Research.
    Strömberg, Annika
    University of Gävle, Faculty of Health and Occupational Studies, Department of Social Work and Psychology, Social work.
    Gustafsson, Susanne
    University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational and Public Health Sciences, Public health science.
    Lindberg, Per
    University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational and Public Health Sciences, Occupational health science. University of Gävle, Centre for Musculoskeletal Research.
    Predictors of Well-being at work2016In: Scientific Programme: Wellbeing at Work 2016, 2016Conference paper (Refereed)
    Abstract [en]

    The concept of healthy workplace has been defined as an organization that maximizes the integration of worker goals for wellbeing and company objectives for profitability and productivity. Conditions in today’s working life make new approaches necessary in order to limit negative health effects of work and to enhance wellbeing and health at work. About 24 % of the working population in Sweden report to have had work-related disorders during the last twelve months. In order to achieve a sustainable working life it is likely that strategies and actions from different and new angles are needed.ObjectivesThe present study is a part of a larger study (the GodA –study; a Swedish acronym for good work environments and healthy workplaces) and aims to investigate how work environment factors, work ability, work motivation, work and life balance predict well-being at work.

    Methods

    The GodA study is a 2-year follow up study in Sweden with a survey feedback design in three companies with both blue- and white collar workers. One of the companies serves as “intervention-company”, the other two as controls. A baseline questionnaire was sent out 2013 and the results from the survey were reported back to the companies, which have been processing their results. In spring 2015 a follow up survey has been administered. Data have been analysed with univariate and multivariate linear regression analyses.

    Results

    A baseline multivariate linear regression model, which included background factors, perceived psychosocial work climate and work environmental factors (motivation, leadership, employee responsibilities, efficacy, work ability and management committed to employee health) and work life balance, showed that psychosocial work climate (B= .48, 95% CI=.27 – .69) leadership, (B= .27, 95% CI=.05– .49), work ability (B= -.12, 95% CI= .03 – .21), motivation (B= -33, 95% CI= .14 – .51) and work life balance (B= -.34, 95% CI=-.57– -.12), were signifi-cantly associated with well-being at work and explained 40% of the variance (Adjusted R2=.40, p<.001).

    Conclusions

    Results showed that not only work environment factors are important predictors. To maintain a healthy work place a promotion of balance between work and private life is needed.

  • 268.
    Anderzén, Ingrid
    et al.
    Department of Public Health and Caring Sciences, Uppsala University.
    Lindberg, Per
    University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational and Public Health Sciences, Occupational health science. University of Gävle, Centre for Musculoskeletal Research.
    Karlsson, Thomas
    University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational and Public Health Sciences, Occupational health science. University of Gävle, Centre for Musculoskeletal Research.
    Strömberg, Annika
    University of Gävle, Faculty of Health and Occupational Studies, Department of Social Work and Psychology, Social work.
    Gustafsson, Susanne
    University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational and Public Health Sciences, Public health science.
    Predictors of well-being at work2015Conference paper (Other academic)
    Abstract [en]

    Background

    The concept of healthy workplace has been defined as an organization that maximizes the integration of worker goals for wellbeing and company objectives for profitability and productivity. Conditions in today’s working life make new approaches necessary in order to limit negative health effects of work and to enhance wellbeing and health at work. About 24 % of the working population in Sweden report to have had work-related disorders during the last twelve months. In order to achieve a sustainable working life it is likely that strategies and actions from different and new angles are needed.

    The present study is a part of a larger study (the GodA –study; a Swedish acronym for good work environments and healthy workplaces) and aims to investigate how work environment factors, work ability, work motivation, work and life balance predict well-being at work.

    Methods

    The GodA study is a 2-year follow up study in Sweden with a survey feedback design in three companies with both blue- and white collar workers. One of the companies serves as “intervention-company”, the other two as controls. A baseline questionnaire was sent out 2013 and the results from the survey were reported back to the companies, which have been processing their results. In spring 2015 a follow up survey has been administered. Data from the baseline measurements have been analysed with univariate and multivariate linear regression analyses.

    Results

    A baseline multivariate linear regression model, which included background factors, perceived psychosocial work climate and work environmental factors (motivation, leadership, employee responsibilities, efficacy, work ability and management committed to employee health) and work life balance, showed that psychosocial work climate (B= .48, 95% CI=.27 – .69) leadership, (B= .27, 95% CI=.05– .49), work ability  (B= -.12, 95% CI= .03 – .21), motivation (B= -33, 95% CI= .14 – .51) and work life balance (B= -.34, 95% CI=-.57– -.12), were significantly associated with well-being at work and explained 40% of the variance  (Adjusted R2=.40, p<.001). Results from the two-year follow up will be presented at the conference.

    Conclusions

    Results showed that not only work environment factors are important predictors. To maintain ahealthy work place apromotion ofbalancebetween workand private life is needed.

  • 269.
    Andreassen Devik, S.
    et al.
    Centre of Care Research, Department of Health Sciences, Nord University, Steinkjer, Norway; Department of Health Sciences, Nord University, Namsos, Norway.
    Hellzén, Ove
    Department of Nursing Sciences, Mid-Sweden University, Sundsvall, Sweden.
    Enmarker, Ingela
    University of Gävle, Faculty of Health and Occupational Studies, Department of Health and Caring Sciences, Caring science. Centre of Care Research, Department of Health Sciences, Nord University, Steinkjer, Norway; Department of Nursing Sciences, Mid-Sweden University, Sundsvall, Sweden.
    Bereaved family members' perspectives on suffering among older rural cancer patients in palliative home nursing care: a qualitative study2017In: European Journal of Cancer Care, ISSN 0961-5423, E-ISSN 1365-2354, Vol. 26, no 6Article in journal (Refereed)
    Abstract [en]

    Little is known about experiences with receiving home nursing care when old, living in a rural area, and suffering from end-stage cancer. The aim of this study was thus to investigate bereaved family members' perceptions of suffering by their older relatives when receiving palliative home nursing care. Qualitative semi-structured interviews were conducted with 10 family members, in Norway during autumn 2015, and directed content analysis guided by Katie Eriksson's theoretical framework on human suffering was performed upon the data. The two main categories identified reflected expressions of both suffering and well-being. Expressions of suffering were related to illness, to care and to life and supported the theory. Expressions of well-being were related to other people (e.g. familiar people and nurses), to home and to activity. The results indicate a need to review and possibly expand the perspective of what should motivate care. Nursing and palliative care that become purely disease and symptom-focused may end up with giving up and divert the attention to social and cultural factors that may contribute to well-being when cure is not the goal.

  • 270.
    Andreassen Devik, Siri
    et al.
    Fakultet for sykepleie og helsevitenskap, Nord universitet, Bodö, Norge.
    Enmarker, Ingela
    University of Gävle, Faculty of Health and Occupational Studies, Department of Health and Caring Sciences, Caring science. Fakultet for sykepleie og helsevitenskap, Nord universitet, Bodö, Norge.
    Quality collaboratives used to improve drug safety for older patients in primary care in Norway2016Conference paper (Refereed)
  • 271.
    Andreassen Devik, Siri
    et al.
    Centre for Care Research Mid-Norway, Steinkjer, Norway; Department of Health Sciences, Mid-Sweden University, Sundsvall, Sweden.
    Enmarker, Ingela
    Centre for Care Research Mid-Norway, Steinkjer, Norway; Nord Trøndelag University College, Namsos, Norway.
    Bitnes Wiik, Guri
    Nord Trøndelag University College, Namsos, Norway.
    Hellzén, Ove
    Centre for Care Research Mid-Norway, Steinkjer, Norway; Department of Health Sciences, Mid-Sweden University, Sundsvall, Sweden; Nord Trøndelag University College, Namsos, Norway.
    Meanings of being old, living on one's own and suffering from incurable cancer in rural Norway2013In: European Journal of Oncology Nursing, ISSN 1462-3889, E-ISSN 1532-2122, Vol. 17, no 6, p. 781-787Article in journal (Refereed)
    Abstract [en]

    Purpose

    The aim of this study was to explore and understand the lived experience of older people living alone and suffering from incurable cancer in rural Norway.

    Methods and sample

    Narrative interviews were conducted with five older people with incurable cancer (three women and two men, aged 71–79), receiving outpatient and life-prolonging chemotherapy and living alone in their homes in rural areas. A phenomenological hermeneutical approach was used to interpret the meaning of the lived experience.

    Key results

    Four main themes were found: enduring by keeping hope alive, becoming aware that you are on your own, living up to expectations of being a good patient and being at risk of losing one's identity and value. Enduring this situation means struggling with terminal illness and facing death in a brave manner, and replacing former ways of living. The process of providing treatment may threaten dignity and cause additional distress.

    Conclusions

    These results show a complex and comprehensive situation where physical symptoms and emotions are interwoven. Further the results describe how the ways of suffering caused by the manner in which care is delivered, suffering related to the cancer disease and existential suffering, may increase each other's impact. The social and rural context calls for special attention as the patients may lack recourses to gain sufficient care. Their comfort depends to a large extent on the health professionals' sensitivity.

  • 272.
    Andreassen Devik, Siri
    et al.
    Fakultet for sykepleie og helsevitenskap - Nord universitet.
    Enmarker, Ingela
    Fakultet for sykepleie og helsevitenskap - Nord universitet.
    Haugum, Margrete Hembre
    Trøndelag Forskning og Utvikling.
    Evaluering av Mestring i lag – sammen om rehabilitering. Prosjekt ved Namdal rehabilitering2012Report (Other academic)
  • 273.
    Andreassen Devik, Siri
    et al.
    Centre for Care Research Mid-Norway, Norway; Nord University, Norway.
    Enmarker, Ingela
    University of Gävle, Faculty of Health and Occupational Studies, Department of Caring Science, Caring Science.
    Hellzén, Ove
    Mid Sweden University, Sweden.
    Nurses’ experiences of compassion when giving palliative care at home2020In: Nursing Ethics, ISSN 0969-7330, E-ISSN 1477-0989, Vol. 27, no 1, p. 194-205Article in journal (Refereed)
    Abstract [en]

    Background: Compassion is seen as a core professional value in nursing and as essential in the effort of relieving suffering and promoting well-being in palliative care patients. Despite the advances in modern healthcare systems, there is a growing clinical and scientific concern that the value of compassion in palliative care is being less emphasised.

    Objective: This study aimed to explore nurses’ experiences of compassion when caring for palliative patients in home nursing care. Design and participants: A secondary qualitative analysis inspired by hermeneutic circling was performed on narrative interviews with 10 registered nurses recruited from municipal home nursing care facilities in Mid-Norway. Ethical considerations: The Norwegian Social Science Data Services granted permission for the study (No. 34299) and the re-use of the data.

    Findings: The compassionate experience was illuminated by one overarching theme: valuing caring interactions as positive, negative or neutral, which entailed three themes: (1) perceiving the patient’s plea, (2) interpreting feelings and (3) reasoning about accountability and action, with subsequent subthemes.

    Discussion: In contrast to most studies on compassion, our results highlight that a lack of compassion entails experiences of both negative and neutral content.

    Conclusion: The phenomenon of neutral caring interactions and lack of compassion demands further explorations from both a patient – and a nurse perspective. 

  • 274.
    Andreassen Devik, Siri
    et al.
    Centre of Care Research, Mid-Norway, Steinkjer, Norway; Department of Nursing, Sweden University, Sundsvall, Sweden.
    Enmarker, Ingela
    Centre of Care Research, Steinkjer, Mid-Norway; Department of Health Sciences, Nord-Trøndelag University College, Namsos, Norway.
    Hellzén, Per Ove
    Centre of Care Research, Steinkjer, Mid-Norway; Department of Nursing, Mid-Sweden University, Sundsvall, Sweden; Department of Health Sciences, Nord-Trøndelag University College, Namsos, Norway.
    When expressions make impressions-Nurses' narratives about meeting severely ill patients in home nursing care: A phenomenological-hermeneutic approach to understanding2013In: International Journal of Qualitative Studies on Health and Well-being, ISSN 1748-2623, E-ISSN 1748-2631, Vol. 8, no 1, article id 21880Article in journal (Refereed)
    Abstract [en]

    Registered nurses (RNs) working in homecare encounter severely ill and palliative patients whose expressions may cause ethical challenges and influence their daily work. The aim of this qualitative study was to illuminate and interpret the meaning of nurses’ lived experiences when meeting these patients. Narrative interviews were conducted with 10 RNs working in home nursing care. These interviews were audiotaped and transcribed verbatim to a text and interpreted by a phenomenological-hermeneutic method inspired by Ricoeur. The meaning of the RNs’ lived experience of patients’ expressions was formulated into four themes. The first theme, Being open for the presence of the Other, includes two subthemes: “Sensing vulnerability” and “Empathizing with.” The second theme, Being satisfied, entails the subthemes, “Feeling exceptional” and “Being trusted.” The third theme, Being frustrated, contains the subthemes, “Being disappointed” and “Being angry.” The fourth and final theme, Being ambivalent, includes one subtheme: “Being generous or reserved.” Patients’ expressions that make impressions on nurses create emotional waves. Expressions leave impressions that call upon the nurse, and confront her with taking the risk of letting intuition and pre-reflexive feelings gain entry to her care. Allowing for the Other's presence is seen as a precondition, which means facing humanity and sensing a vulnerability in herself as well as in the Other. Understanding and balancing this emotional dimension in care seems to cause confusion and distress within the nurses. Realizing how their feelings may lead to either generosity or aloofness towards the patient is upsetting. Our interpretation suggests that these impressions echo confusion according to the role of being a professional nurse. There is a need to pay more attention to how the emotional dimension in care is understood and impacts the way nurses perform their professional role.

  • 275.
    Andreassen Devik, Siri
    et al.
    Centre for Care Research Mid-Norway, Steinkjer, Norway; Department of Health Sciences, Mid-Sweden University, Sundsvall, Sweden.
    Enmarker, Ingela
    Centre for Care Research Mid-Norway, Steinkjer, Norway;Nord Trøndelag University College, Namsos, Norway.
    Wiik, Guri Bitnes
    Nord Trøndelag University College, Namsos, Norway.
    Hellzén, Per Ove
    Centre for Care Research Mid-Norway, Steinkjer, Norway; Department of Health Sciences, Mid-Sweden University, Sundsvall, Sweden.
    Meanings of being old, living on one`s own and suffering from incurable cancer in rural Norway2014Conference paper (Refereed)
  • 276.
    Andreassen Devik, Siri
    et al.
    Centre of Care Research, Mid-Norway, Steinkjer, Norway; Department of Nursing, Mid-Sweden University, Sundsvall, Sweden.
    Hellzén, Ove
    Department of Nursing, Mid-Sweden University, Sundsvall, Sweden.
    Enmarker, Ingela
    Centre of Care Research, Mid-Norway, Steinkjer, Norway; Department of Nursing, Mid-Sweden University, Sundsvall, Sweden; Department of Health Sciences, Nord-Trøndelag University College, Stjørdal, Norway.
    "Picking up the pieces" - Meanings of receiving home nursing care when being old and living with advanced cancer in a rural area2015In: International Journal of Qualitative Studies on Health and Well-being, ISSN 1748-2623, E-ISSN 1748-2631, Vol. 10, no 1, article id 28382Article in journal (Refereed)
    Abstract [en]

    Rural home nursing care is a neglected area in the research of palliative care offered to older cancer patients. Because access to specialized services is hampered by long distances and fragmented infrastructure, palliative care is often provided through standard home nursing services and delivered by general district nurses. This study aimed to illuminate the lived experience and to interpret the meaning of receiving home nursing care when being old and living with advanced cancer in a rural area in Norway. Narrative interviews were conducted with nine older persons, and a phenomenological hermeneutic approach was used to interpret the meaning of the lived experience. The analysis revealed three themes, each with subthemes: being content with what one gets, falling into place, and losing one's place. The phrase picking up the pieces was found useful to sum up the meaning of this lived experience. The three respective themes refer to how the pieces symbolize the remaining parts of life or available services in their environment, and how the older persons may see themselves as pieces or bricks in a puzzle. A strong place attachment (physical insideness, social insideness, and autobiographical insideness) is demonstrated by the informants in this study and suggests that the rural context may provide an advantageous healthcare environment. Its potential to be a source of comfort, security, and identity concurs with cancer patients’ strong desire for being seen as unique persons. The study shows that district nurses play an essential role in the provision of palliative care for older rural patients. However, the therapeutic value of being in one's familiar landscape seems to depend on how homecare nurses manage to locate it and use it in a more or less person-centred manner. Communication skills and attentiveness to psychosocial aspects of patient care stand out as important attributes for nursing in this context.

  • 277. Andrienko, Gennady
    et al.
    Dykes, JasonJiang, BinUniversity of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Urban and regional planning/GIS-institute.
    GeoViz Hamburg 2011: Linking geovisualization with spatial analysis and modeling2011Collection (editor) (Refereed)
  • 278.
    Andrée, Martin
    et al.
    Lantmäteriet.
    Larsson, Karolina
    KLM; Stockholms stad.
    Nordqvist Darell, Fanny
    Stockholms stad.
    Malm, Linus
    Tyréns.
    Tullberg, Odd
    WSP.
    Wallberg, Ann
    JM.
    Norsell, Johan
    NAI Svefa.
    Paasch, Jesper M.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Land management, GIS.
    Seipel, Stefan
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Computer science.
    Paulsson, Jenny
    Kungliga Tekniska Högskolan, Stockholm.
    Slutrapport för projektet Smart planering för byggande: Delprojekt 3 - BIM som informationsstöd för 3D fastighetsbildning2018Report (Other academic)
    Abstract [sv]

    Samhällsbyggnadsprocessen behöver utvecklas och bli smartare, öppnare och mer effektiv för ett ökat bostadsbyggande. En digitalisering av samhällsbyggnadsprocessen kan ge ett effektivare samarbete mellan kommun, fastighetsägare, byggherrar, medborgare, näringsliv och myndigheter.Vid bildande av tredimensionellt avgränsade fastigheter eller fastighetsutrymmen (3D-fastigheter) behöver gränsernas läge redovisas både verbalt och i kartor och ritningar, detsamma gäller berörda rättigheter. Det är idag ofta svårt att korrekt redovisa en 3D-volym med enbart dagens pappersritningar och även svårt att läsa en registerkarta i 2D med fastigheter och rättigheter beslutade i 3D. Beslutsunderlagen i fastighetsbildnings-processen behöver bli mer enhetliga och entydiga samt fastighetsinformationen behöver bli återanvändningsbar i hela samhällsbyggnadsprocessen.I detta projekt har vi studerat informationsbehovet i de olika tidpunkterna under fastighetsbildningsprocessen för 3D-fastigheter med fokus på vem som är ansvarig för att tillhandahålla informationsunderlag för att identifiera krav på utformning av 3D-modeller (t.ex BIM) och 3D-stöd för fastighetsbildning.Internationellt finns det ett stort intresse och många frågeställningar gällande samspelet mellan BIM och Fastighetsinformation; det är däremot ganska få fall som har identifierats där man har arbetat praktiskt med BIM i relation till redovisning av 3D-fastigheter.Projektethar även tittat på behov av visualisering och tillhandahållande av fastighetsinformation i 3D, hur informationen bör utformas för att kunna tolkas korrekt samt nyttjas vidare av andra aktörer i samhällsbyggnadsprocessen.Slutsatsen i projektetär att en framtida arbetsmodell där man i samband med myndighetsutövningen för fastighetsbildning samverkar med stöd av BIM och geografisk information i ärendehandläggningen kan ge stora effekter på både myndighetens effektivitet och i ärendeutövningen och för förståelsen av fastighetbildningsbeslutet hos samtliga intressenter i processen. För att det arbete som genomförts i denna utredning skall få genomslag i den dagliga verksamheten rekommenderar vibland annatatt de statliga och kommunala lantmäterimyndigheterna arbetar vidare med att utveckla arbetsprocessen och rekommendationerna för 3D-fastighetsbildning baserat på resultatet från detta projekt och redan i dagens modell efterfrågar att man i handläggningsprocessen kan arbeta BIM-baserat även om kommande beslutshandlingar under en övergångsperiod fortfarande kommer att vara baserade på ritningsbilagor i 2D.

  • 279.
    Andrée, Martin
    et al.
    Lantmäteriet.
    Paasch, Jesper M.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Land management, GIS.
    Paulsson, Jenny
    Kungliga Tekniska Högskolan.
    Seipel, Stefan
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Computer science.
    BIM and 3D property visualisation2018In: FIG Congress 2018: Proceedings, 2018, article id 9367Conference paper (Other academic)
    Abstract [en]

    The concept of 3D property has only existed a short period of time in Sweden, being introduced in 2004 and expanded in 2009 by the addition of condominium (apartment) ownership. It is therefore a rather new form of land management, and the demand for 3D property formation has not been as high as initially expected. There is however an increased interest in 3D property and ownership apartments today, also as being part of the nation’s geospatial infrastructure together with related 3D information for e.g. buildings, utility networks and other features. An effective management of 3D property is depending on, among other things, visualization, representation and storage of 3D real property data, such as legal boundaries and real property rights. There are at present a number of ongoing 3D development and research projects focusing on visualization and standardization of 3D cadastral boundaries. They are part of the national "Smart Built Environment" development and research program, which includes the use of BIM in the (future) 3D property formation process with focus on visualization of 3D real property and condominiums, and specification of requirements and evaluation of 3D digital real property information created and managed in the processes.

    This paper presents the preliminary results of the working group on visualization of 3D boundaries in the project "Smart planning, construction and management processes throughout the life cycle". The aim is to test the results produced in the project "Information for planning, real property formation and building permission", working group "BIM for 3D property formation." The purpose of this working group is to set the requirements for and evaluate the test bed for 3D property information. The focus is on visualization of 3D property and ownership apartments. The proposed model for digitization and visualization of 3D property formation will be tested in a test bed environment. A pilot case from the Stockholm area is then used in the test bed to see how it could work in practice.

    The expected outcome is recommendations for the exchange of documentation and other digital information in 3D processes, the visualization of legal boundaries for stakeholders, registration of legal 3D objects in the Swedish national real property register and how to communicate 3D models to right holders/stakeholders for 3D property and condominiums and the property market, as well as suggestions for a homogeneous, effective and digital flow of 3D information to be used by actors and other stakeholders in the property formation, planning and building processes.

  • 280.
    Andrén, Maria
    University of Gävle, Faculty of Education and Business Studies, Department of Culture Studies, Religious Studies and Educational Sciences, Education.
    Authentic Assessment: Outcomes-based Intuitive Assessment, Misunderstandings, Application and Pedagogical Development2010Conference paper (Other academic)
    Abstract [en]

    According to the Bologna Directives teaching at Swedish Colleges and Universities should be outcomes-based rather than content-based. Inspired by the assessment principles involved in setting grades for art education portfolios, professor Peter Gill at the University of Gävle has developed a model of educational assessment matrices, the purpose of which is to clarify the procedures involved in assessing educational tasks by focussing on learning outcomes. However, the implementation of this initiative has been met with certain difficulties. Intended users have lacked a common conceptual framework and have expressed a reluctance to embrace a scoring system that requires congruence between aggregated subjective judgements and Bologna grades. One reason may be that the underlying epistemological assumptions are difficult to clarify. A further reason is also postulated on the basis of epistemological collisions between different ideological positions. The following text takes as its starting point observed misunderstandings concerning the nature of intuitive authentic assessment as well as practical experience of making use of such assessment procedures. The article argues for the use of clarifying and systematizing the assessment principles in order to increase methodological transparency for students and colleagues. It is also argued that implementing such assessment strategies provides improved possibilities for pedagogical and didactical development.

  • 281.
    Andrén, Maria
    Landstinget i Älvsborg.
    Bulletiner Kultur i omsorg1988Report (Other (popular science, discussion, etc.))
  • 282.
    Andrén, Maria
    University of Gävle, Department of Education and Psychology, Ämnesavdelningen för pedagogik.
    "Communing" as a point of reference within Aesthetic Liberal Adult Education: Goals and meaning seen through the lenses of the Aristotelian notion of praxis and poìeses2006Conference paper (Other academic)
  • 283.
    Andrén, Maria
    University of Gävle, Faculty of Education and Business Studies, Department of Culture Studies, Religious Studies and Educational Sciences, Education.
    Conceptualizing concepts: The use of Methodological Concepts in Qualitative Research2010Conference paper (Other academic)
    Abstract [en]

    Within the scientific community, methodological concepts occupy a central position. Many students devote much effort trying to learn "correct" meanings for the concepts with which they come in contact. Another way to approach what might be termed ‘ontology of conceptualization’ is to study how concepts are used. The subject of this investigation is an exploration of the use of some methodological concepts as they arise in academic dissertations. In the theses that were studied it was found that concepts are not used coherently in a lexical sense. While use may be consistent with knowledge claims as they are elucidated in the texts, there is a need to distinguish what is being described in terms of the use of concepts from other possible meaning-options. A didactic conclusion from this analysis is that the teaching of research methodology will be more successful when it focuses on differences between concepts and how they are presented and used in given research contexts, rather than attempting to providing general all-encompassing definitions.

  • 284.
    Andrén, Maria
    University of Gävle, Faculty of Education and Business Studies, Department of Culture Studies, Religious Studies and Educational Sciences, Education.
    Det pedagogiska övervägandet – om att utveckla pedagogisk klokhet2010Conference paper (Other academic)
  • 285.
    Andrén, Maria
    University of Gävle, Department of Education and Psychology, Ämnesavdelningen för pedagogik.
    Det pedagogiska övervägandet: en uppmärksamhetsinriktande studie i och genom humanvetenskaplig handlingsteori2008Doctoral thesis, monograph (Other academic)
  • 286.
    Andrén, Maria
    University of Gävle, Department of Education and Psychology, Ämnesavdelningen för pedagogik.
    Egna erfarenheter som empiriskt material2006In: Uppsatsens mystik: om konsten att skriva uppsats och examensarbete / [ed] Mia Maria Rosenqvist, Maria Andrén, Uppsala: Hallgren & Fallgren , 2006, p. 146-154Chapter in book (Other academic)
  • 287.
    Andrén, Maria
    Västra Götalandsregionen.
    Kan man vara folkbildare utan att veta om det själv?: om skapande pedagogik och folkbildning2002Book (Other academic)
  • 288.
    Andrén, Maria
    University of Gävle, Department of Education and Psychology, Ämnesavdelningen för pedagogik.
    Om ansvar2004Report (Other academic)
  • 289.
    Andrén, Maria
    Västra Götalandsregionen.
    Praxis i praktiken: att förstå skapande pedagogik med hjälp av Aristoteles2001Book (Other academic)
  • 290.
    Andrén, Maria
    Landstinget i Älvsborg.
    Spelrum och bollplank: chefen och den skapande verksamheten1998Book (Other (popular science, discussion, etc.))
  • 291.
    Andrén, Maria
    Landstinget i Älvsborg.
    Synas : skapande arbete för vuxna utvecklingsstörda: tio år av verksamhetsutveckling inom Landstinget i Älvsborg : projektbeskrivning : utvärdering1996Report (Other (popular science, discussion, etc.))
  • 292.
    Andrén, Maria
    University of Gävle, Faculty of Education and Business Studies, Department of Culture Studies, Religious Studies and Educational Sciences, Education.
    Understanding Pedagogy by using Aesthetic Analysis2011Conference paper (Other academic)
    Abstract [en]

    The basic assumption underlying this study is that in completing any pedagogical task there is always an aesthetic dimension involved. Three archetypal pedagogical approaches are enacted and examined by focusing on pedagogical activity as a form of Art. The examples are constructed in order to explicate pedagogically “problematic” approaches. The purpose is to understand and enlighten the pedagogical impact of certain behaviors by the using of aesthetic analysis. One suggested result of the study will be to show how hard, or impossible, it is to distinguish between aspects of content and form in any pedagogical process. Another suggested conclusion will be to show how enhanced awareness of, and reflection on, aesthetic considerations in pedagogical contexts usually deemed "non-aesthetic" might serve a useful tool in professional pedagogical development as a teacher.

  • 293.
    Andrén, Maria
    et al.
    Västra Götalandsregionen.
    Hane, Monica
    Samarbetsdynamik.
    Den gemenskapande handlingen och andra bilder av skapande pedagogik2001Book (Other academic)
  • 294.
    Andrén, Maria
    et al.
    Landstinget i Älvsborg.
    Johanson, Hans-Olof
    Landstinget i Älvsborg.
    Vad tror ni hände sen?: Musikverksamhet på dagcenter och gruppbostäder i Landstinget i Älvsborg1993Report (Other (popular science, discussion, etc.))
  • 295.
    Andrén, Maria
    et al.
    Landstinget i Värmland.
    Sponseller, Kay
    Landstinget i Värmland.
    Om och om igen: studiehäfte till gymnastik-musikprogrammet1988Book (Other (popular science, discussion, etc.))
  • 296.
    Andrén, Marianne
    et al.
    University of Gävle, Faculty of Health and Occupational Studies.
    Boman, Tomas
    University of Gävle, Faculty of Health and Occupational Studies, Department of Social Work and Psychology, Social work.
    Behov av kompetensutveckling bland verksamhetschefer och biståndshandläggare i Region Gävleborg: omsorg om äldre personer : omsorg om personer med funktionsnedsättning2016Report (Other academic)
    Abstract [sv]

    Syftet med denna rapport har varit att kartlägga kompetensbehov som finns bland enhetschefer/verksamhetschefer och biståndshandläggare inom äldreomsorg och omsorg om funktionsnedsatta i Region Gävleborg. Kartläggningen genomfördes genom en webbenkät som besvarades av totalt 155 respondenter. Resultatet visade att, trots att Högskolan i Gävle i den nuvarande socionomutbildningen har inslag av ämnesspecifika kunskaper inom äldre- och funktionshinderområdet samt en specifik kurs inom organisation/ledarskap, finns behov av kompetensutveckling på grundläggande högskolenivå inom dessa områden. Likartade kompetensutvecklingsbehov uttrycktes även på avancerad-/masternivå. För att kunna erbjuda den kompetensutveckling som efterfrågas är det av vikt att arbetsgivare och Högskolan i Gävle samverkar kring utformning av utbildningsinsatser för att ge goda förutsättningar för medarbetare att delta och genomföra dessa.

  • 297.
    Angele, Kristian
    et al.
    Vattenfall Research & Development AB, Älvkarleby, Sweden.
    Cehlin, Mathias
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering, Energy engineering. Vattenfall Research & Development AB, Älvkarleby, Sweden.
    Högström, Carl-Maikel
    Vattenfall Research & Development AB, Älvkarleby, Sweden.
    Odemark, Ylva
    Vattenfall Research & Development AB, Älvkarleby, Sweden.
    Henriksson, Mats
    Vattenfall Research & Development AB, Älvkarleby, Sweden.
    Tinoco, Hernan
    Forsmarks Kraftgrupp AB, Östhammar, Sweden.
    Lindqvist, Hans
    Forsmarks Kraftgrupp AB, Östhammar, Sweden.
    Hemström, Bengt
    Vattenfall Research & Development AB, Älvkarleby, Sweden.
    Flow Mixing Inside a Control-Rod Guide Tube: Part 2—Experimental Tests and CFD-Simulations2010In: 18th International Conference on Nuclear Engineering: Volume 4, Parts A and B, 2010, p. 655-663Conference paper (Refereed)
    Abstract [en]

    Alarge number of control rod cracks were detected during therefuelling outage of the twin reactors Oskarshamn 3 and Forsmark3 in the fall of 2008. The extensive damage investigationfinally lead to the restart of both reactors at theend of 2008 under the condition that further studies wouldbe conducted in order to clarify all remaining matters. Also,all control rods were inserted 14% in order to locatethe welding region of the control rod stem away fromthe thermal mixing region of the flow. Unfortunately, this measureled to new cracks a few months later due toa combination of surface finish of the new stems andthe changed flow conditions after the partial insertion of thecontrol rods. The experimental evidence reported here shows an increasein the extension of the mixing region and in theintensity of the thermal fluctuations. As a part of thecomplementary work associated with the restart of the reactors, andto verify the CFD simulations, experimental work of the flowin the annular region formed by the guide tube andcontrol rod stem was carried out. Two full-scale setups weredeveloped, one in a Plexiglass model at atmospheric conditions (inorder to be able to visualize the mixing process) andone in a steel model to allow for a highertemperature difference and heating of the control rod guide tube.The experimental results corroborate the general information obtained through CFDsimulations, namely that the mixing region between the cold crud-removalflow and warm by-pass flow is perturbed by flow structurescoming from above. The process is characterized by low frequent,high amplitude temperature fluctuations. The process is basically hydrodynamic, causedby the downward transport of flow structures originated at theupper bypass inlets. The damping thermal effects through buoyancy isof secondary importance, as also the scaling analysis shows, howevera slight damping of the temperature fluctuations can be seendue to natural convection due to a pre-heating of thecold crud-removal flow. The comparison between numerical and experimental resultsshows a rather good agreement, indicating that experiments with plantconditions are not necessary since, through the existing scaling lawsand CFD-calculations, the obtained results may be extrapolated to plantconditions. The problem of conjugate heat transfer has not yetbeen addressed experimentally since complex and difficult measurements of theheat transfer have to be carried out. This type ofmeasurements constitutes one of the main challenges to be dealtwith in the future work.

  • 298.
    Angele, Kristian
    et al.
    Vattenfall Research & Development AB, Älvkarleby, Sweden.
    Odemark, Ylva
    Vattenfall Research & Development AB, Älvkarleby, Sweden.
    Cehlin, Mathias
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering, Energy engineering. Vattenfall Research & Development AB, Älvkarleby, Sweden.
    Hemström, Bengt
    Vattenfall Research & Development AB, Älvkarleby, Sweden.
    Högström, Carl-Maikel
    Vattenfall Research & Development AB, Älvkarleby, Sweden.
    Henriksson, Mats
    Vattenfall Research & Development AB, Älvkarleby, Sweden.
    Tinoco, Hernan
    Forsmarks Kraftgrupp AB, Östhammar, Sweden.
    Lindqvist, Hans
    Forsmarks Kraftgrupp AB, Östhammar, Sweden.
    Flow mixing inside a control-rod guide tube: Experimental tests and CFD simulations2011In: Nuclear Engineering and Design, ISSN 0029-5493, E-ISSN 1872-759X, Vol. 241, no 12, p. 4803-4812Article in journal (Refereed)
  • 299.
    Angermann, L.
    et al.
    Institut für MathematikTechnische Universität Clausthal, Clausthal-Zellerfeld, Germany.
    Shestopalov, Yury V.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Electronics, Mathematics and Natural Sciences, Mathematics.
    Smirnov, Y. G.
    Department of Mathematics and Supercomputing, Penza State University, Penza, Russia.
    Yatsyk, V. V.
    O.Ya. Usikov Institute for Radiophysics and Electronics, National Academy of Sciences of Ukraine, Kharkiv, Ukraine.
    A nonlinear multiparameter EV problem2018In: Progress In Electromagnetics Research Symposium: PIERS 2017, PIERS 2017: Nonlinear and Inverse Problems in Electromagnetics / [ed] Beilina L., Smirnov Y., Springer New York LLC , 2018, p. 55-70Conference paper (Refereed)
    Abstract [en]

    We investigate a generalization of one-parameter eigenvalue problems arising in the theory of wave propagation in waveguides filled with nonlinear media to more general nonlinear multi-parameter eigenvalue problems for a nonlinear operator. Using an integral equation approach, we derive functional dispersion equations (DEs) whose roots yield the desired eigenvalues. The existence of the roots of DEs is proved and their distribution is described.

  • 300.
    Angermann, Lutz
    et al.
    Clausthal University of Technology, Clausthal, Germany..
    Shestopalov, Yury V.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Electronics, Mathematics and Natural Sciences, Mathematics.
    Yatsyk, Vasyl
    O. Ya, Usikov Institute for Radiophysics and Electronics of the National Academy of Sciences of Ukraine, Kharkiv, Ukraine.
    Mathematical models for scattering and generation of plane wave packets on layered cubically polarisable structures2013In: Far East Journal of Applied Mathematics, ISSN 0972-0960, Vol. 81, no 1-2, p. 1-31Article in journal (Refereed)
    Abstract [en]

    The paper deals with different formulations of mathematical models for the analysis of processes of resonance scattering and generation of plane wave packets on isotropic, nonmagnetic, linearly polarised media with a nonlinear, layered dielectric structure of cubic polarisability. For each formulation, sufficient conditions for the existence and, partially, uniqueness of the corresponding solution are derived.

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