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  • Public defence: 2020-03-13 09:00 Hasselquistsalen, Building 511, Linköping
    Israelsson, Johan
    Linköping University, Faculty of Medicine and Health Sciences. Linköping University, Department of Health, Medicine and Caring Sciences, Division of Nursing Sciences and Reproductive Health.
    Health-related quality of life after cardiac arrest2020Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    Background: Cardiac arrest is a major health problem worldwide. For many of the afflicted, cardiac arrest is the natural end of life. For others, it is an unexpected event suddenly striking in the middle of life. During the last decades, major efforts in treatment have contributed to more people surviving their cardiac arrest. However, previous research has mainly focused on survival, while the knowledge about health-related quality of life in survivors is sparse. Hence, there is a need for more research in order to extend the knowledge about the living situations among survivors and their spouses. For example, factors associated with health-related quality of life are not sufficiently investigated. Knowledge about such factors is important in order to develop interventions and to be able to improve post cardiac arrest care. In addition, existing research shows incongruent results concerning differences in characteristics and survival between men and women. In order to provide equitable care between sexes, further studies are warranted.

    Aim: The overall aim of this thesis was to increase the knowledge of survival and health-related quality of life among people suffering cardiac arrest with focus on sex and other related factors. The specific aims were: to describe in-hospital cardiac arrest events with regard to sex and investigate if sex is associated with survival after controlling for known predictors and interaction effects (study I), to describe health status and psychological distress among in-hospital cardiac arrest survivors in relation to sex (study II), to investigate factors associated with health-related quality of life among cardiac arrest survivors treated with an implantable cardioverter defibrillator in relation to sex, and to compare their health-related quality of life with a general population, (study III) and to investigate if type D personality and perceived control among cardiac arrest survivors and their spouses were associated with their own and their partners’ health-related quality of life (study IV).

    Methods: The general design in all studies (I-IV) was quantitative, cross-sectional and correlational. This thesis is based on four different data collections. Data was systematically collected using national quality registries (I and II) or by sending questionnaires to survivors (III and IV) and their spouses (IV), treated at several different hospitals in Sweden. The sample size varied between 126 and 990 across the studies. The outcomes and explanatory study variables were chosen with respect to Wilson and Cleary’s conceptual model of health-related quality of life. The main outcome variables were survival after resuscitation, survival at hospital discharge, survival at 30 days post cardiac arrest (I), and health-related quality of life measured by the Hospital Anxiety and Depression Scale (II and III) and the EuroQol-5 dimensions (II-IV). In this thesis descriptive and inferential statistics were applied. The main statistics consisted of logistic and linear regression analyses, and structural equation modelling.

    Results: Male sex was associated with a better chance of survival to hospital discharge, but no associations between sex and survival after resuscitation or at 30 days were identified. More men than women received resuscitation attempts when suffering an in-hospital cardiac arrest (study I). Health-related quality of life among most cardiac arrest survivors was good (II-IV), even when compared to a general population (III). However, a significant proportion reported low health status and symptoms of anxiety and depression (II and III). Women reported worse health-related quality of life compared to men, and female sex was associated with poorer health-related quality of life in the multiple regression models (II and III). Several additional factors were identified to be associated with poorer health-related quality of life: being unemployed, having a type D personality, perceiving less control, suffering from more comorbidities and suffering from more ICD-related concerns (III). In addition, older age was associated with poorer (EQ VAS) or better (HADS Anxiety) health-related quality of life, depending of outcome measure (II). Moreover, perceived control and type D personality among the survivors were associated with health-related quality of life among their spouses, but not vice versa.

    Conclusions: Although, sex does not appear to be an important predictor for survival, the difference between men and women regarding the proportion of resuscitation attempts should be further investigated. The majority of survivors and their spouses report good health-related quality of life similar to general populations. However, a substantial proportion suffer from health problems. Since women in general report worse health-related quality of life compared to men a higher proportion of women may be in need of support. Several factors associated with worse health-related quality of life were identified and might be used during follow-up and rehabilitation. For example, identifying type D personality might be important when screening patients at risk for health problems. Perceiving more control could be targeted by health-supportive interventions, for example person-centered care. Healthcare professionals should make efforts to identify survivors at risk of poor health-related quality of life and offer individualized support when needed. Characteristics among survivors were associated with health-related quality of life in their spouses. Including spouses in follow-up care is therefore important. Wilson and Cleary’s conceptual model for health-related quality of life appears to be applicable for choosing outcomes in cardiac arrest research and might be helpful when designing interventions to improve post cardiac arrest care.

    List of papers
    1. Is there a difference in survival between men and women suffering in-hospital cardiac arrest?
    Open this publication in new window or tab >>Is there a difference in survival between men and women suffering in-hospital cardiac arrest?
    2014 (English)In: Heart & Lung, ISSN 0147-9563, E-ISSN 1527-3288, Vol. 43, no 6, p. 510-515Article in journal (Refereed) Published
    Abstract [en]

    Objectives: To describe in-hospital cardiac arrest (CA) events with regard to sex and to investigate if sex is associated with survival. Background: Previous studies exploring differences between sexes are incongruent with regard to clinical outcomes. In order to provide equality and improve care, further investigations into these aspects are warranted. Methods: This registry study included 286 CAs. To investigate if sex was associated with survival, logistic regression analyses were performed. Results: The proportion of CA with a resuscitation attempt compared to CA without resuscitation was higher among men. There were no associations between sex and survival when controlling for previously known predictors and interaction effects. Conclusions: Sex does not appear to be a predictor for survival among patients suffering CA where resuscitation is attempted. The difference regarding proportion of resuscitation attempts requires more attention. It is important to consider possible interaction effects when studying the sex perspective.

    Place, publisher, year, edition, pages
    Elsevier, 2014
    Keywords
    Heart arrest; Hospital; Sex; Survival; Predictor
    National Category
    Clinical Medicine
    Identifiers
    urn:nbn:se:liu:diva-112817 (URN)10.1016/j.hrtlng.2014.05.012 (DOI)000344837600007 ()25005828 (PubMedID)
    Note

    Funding Agencies|county council of Kalmar

    Available from: 2015-01-08 Created: 2014-12-17 Last updated: 2020-02-17Bibliographically approved
    2. Health status and psychological distress among in-hospital cardiac arrest survivors in relation to gender
    Open this publication in new window or tab >>Health status and psychological distress among in-hospital cardiac arrest survivors in relation to gender
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    2017 (English)In: Resuscitation, ISSN 0300-9572, E-ISSN 1873-1570, Vol. 114, p. 27-33Article in journal (Refereed) Published
    Abstract [en]

    Aim: To describe health status and psychological distress among in -hospital cardiac arrest (IHCA) survivors in relation to gender. Methods: This national register study consists of data from follow-up registration of IHCA survivors 3-6 months post cardiac arrest (CA) in Sweden. A questionnaire was sent to the survivors, including measurements of health status (EQ-5D-5L) and psychological distress (HADS). Results: Between 2013 and 2015, 594 IHCA survivors were included in the study. The median values for EQ-5D-5L index and EQVAS among survivors were 0.78 (ql-q3 = 0.67-0.86) and 70 (ql -q3 = 50-80) respectively. The values were significantly lower (p amp;lt; 0.001) in women compared to men. In addition, women reported more problems than men in all dimensions of EQ-5D-5L, except self -care. A majority of the respondents reported no problems with anxiety (85.4%) and/or symptoms of depression (87.0%). Women reported significantly more problems with anxiety (p amp;lt; 0.001) and symptoms of depression (p amp;lt; 0.001) compared to men. Gender was significantly associated with poorer health status and more psychological distress. No interaction effects for gender and age were found. Conclusions: Although the majority of survivors reported acceptable health status and no psychological distress, a substantial proportion reported severe problems. Women reported worse health status and more psychological distress compared to men. Therefore, a higher proportion of women may be in need of support. Health care professionals should make efforts to identify health problems among survivors and offer individualised support when needed. (C) 2017 Elsevier B.V. All rights reserved.

    Place, publisher, year, edition, pages
    ELSEVIER IRELAND LTD, 2017
    Keywords
    Anxiety; Depression; Health status; Heart arrest; Hospitals; Gender
    National Category
    Public Health, Global Health, Social Medicine and Epidemiology
    Identifiers
    urn:nbn:se:liu:diva-138921 (URN)10.1016/j.resuscitation.2017.02.006 (DOI)000402487800021 ()28216089 (PubMedID)
    Note

    Funding Agencies|Swedish Heart and Lung Association; Medical Research Council of Southeast Sweden

    Available from: 2017-06-27 Created: 2017-06-27 Last updated: 2020-02-17
    3. Factors associated with health-related quality of life among cardiac arrest survivors treated with an implantable cardioverter-defibrillator
    Open this publication in new window or tab >>Factors associated with health-related quality of life among cardiac arrest survivors treated with an implantable cardioverter-defibrillator
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    2018 (English)In: Resuscitation, ISSN 0300-9572, E-ISSN 1873-1570, Vol. 132, p. 78-84Article in journal (Refereed) Published
    Abstract [en]

    Aim: To explore factors associated with health-related quality of life (HRQoL) among cardiac arrest (CA) survivors treated with an implantable cardioverter-defibrillator (ICD) in relation to gender, and to compare their HRQoL with a general population. Methods: This cross-sectional study included 990 adults treated with an ICD after suffering CA. All participants received a questionnaire including demographics, comorbidities and instruments to measure HRQoL (EQ-5D-3L and HADS), ICD-related concerns (ICDC), perceived control (CAS), and type D personally (DS-14). HRQoL (EQ-5D-3L) was compared to a general Swedish population, matched for age and gender. Linear regression analyses were used to explore factors associated with HRQoL. Results: The CA survivors reported better HRQoL in EQ index and less pain/discomfort compared to the general population (p amp;lt; 0.001). In contrast, they reported more problems in mobility and usual activities (p amp;lt; 0.01). Problems with anxiety and depression were reported by 15.5% and 7.4% respectively. The following factors were independently associated with all aspects of worse HRQoL: being unemployed, suffering more comorbidity, perceiving less control, and having a type D personally. Further, being female and suffering ICD-related concerns were independently associated with worse HRQoL in three of the four final regression models. Conclusions: This extensive population-based study showed that most CA survivors living with an ICD rate their HRQoL as acceptable. In addition, their HRQoL is similar to a general population. Women reported worse HRQoL compared to men. Several factors associated with HRQoL were identified, and might be used when screening patients for health problems and when developing health promoting interventions.

    Place, publisher, year, edition, pages
    ELSEVIER IRELAND LTD, 2018
    Keywords
    Health-related quality of life; Health status; Psychological distress; Cardiac arrest; Implantable cardioverter-defibrillator; Gender
    National Category
    Public Health, Global Health, Social Medicine and Epidemiology
    Identifiers
    urn:nbn:se:liu:diva-152373 (URN)10.1016/j.resuscitation.2018.09.002 (DOI)000446854900019 ()30201535 (PubMedID)
    Note

    Funding Agencies|Medical Research Council of Southeast Sweden; Swedish Heart and Lung Association

    Available from: 2018-11-05 Created: 2018-11-05 Last updated: 2020-02-17
    4. Dyadic effects of type D personality and perceived control on health-related quality of life in cardiac arrest survivors and their spouses using the actor-partner interdependence model
    Open this publication in new window or tab >>Dyadic effects of type D personality and perceived control on health-related quality of life in cardiac arrest survivors and their spouses using the actor-partner interdependence model
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    2019 (English)In: European Journal of Cardiovascular Nursing, ISSN 1474-5151, E-ISSN 1873-1953, article id UNSP 1474515119890466Article in journal (Refereed) Epub ahead of print
    Abstract [en]

    Background: There is a lack of knowledge about factors associated with health-related quality of life in cardiac arrest survivors and their spouses. In addition, survivors and spouses are likely to affect each others health-related quality of life. Aims: The aim was to investigate if a distressed personality and perceived control among cardiac arrest survivors and their spouses were associated with their own and their partners health-related quality of life. Methods: This dyadic cross-sectional study used the actor-partner interdependence model to analyse associations between a distressed personality (type D personality), perceived control (control attitudes scale), and health-related quality of life (EQ index and EQ visual analogue scale). Results: In total, 126 dyads were included in the study. Type D personality and perceived control in cardiac arrest survivors were associated with their own health-related quality of life. In their spouses, a significant association was found for type D personality but not for perceived control. In addition, type D personality and perceived control in survivors were associated with health-related quality of life in their spouses. Conclusions: Type D personality and perceived control are factors that might be considered during post cardiac arrest, because of the associations with health-related quality of life in survivors and spouses. More research is needed to test psychosocial interventions in the cardiac arrest population in order to improve health-related quality of life.

    Place, publisher, year, edition, pages
    SAGE PUBLICATIONS LTD, 2019
    Keywords
    Heart arrest; survivor; partner; health; quality of life; dyads
    National Category
    Public Health, Global Health, Social Medicine and Epidemiology
    Identifiers
    urn:nbn:se:liu:diva-162500 (URN)10.1177/1474515119890466 (DOI)000498130000001 ()31752502 (PubMedID)
    Note

    Funding Agencies|Swedish Heart and Lung AssociationSwedish Heart-Lung Foundation; Medical Research Council of Southeast Sweden

    Available from: 2019-12-16 Created: 2019-12-16 Last updated: 2020-02-17
  • Public defence: 2020-03-20 10:15 Ada Lovelace, House B, Linköping
    Radnosrati, Kamiar
    Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, Faculty of Science & Engineering.
    Time of Flight Estimation for Radio Network Positioning2020Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    Trilateration is the mathematical theory of computing the intersection of circles. These circles may be obtained by time of flight (ToF) measurements in radio systems, as well as laser, radar and sonar systems. A first purpose of this thesis is to survey recent efforts in the area and their potential for localization. The rest of the thesis then concerns selected problems in new cellular radio standards as well as fundamental challenges caused by propagation delays in the ToF measurements, which cannot travel faster than the speed of light. We denote the measurement uncertainty stemming from propagation delays for positive noise, and develop a general theory with optimal estimators for selected distributions, which can be applied to trilateration but also a much wider class of estimation problems.

    The first contribution concerns a narrow-band mode in the long-term evolution (LTE) standard intended for internet of things (IoT) devices. This LTE standard includes a special position reference signal sent synchronized by all base stations (BS) to all IoT devices. Each device can then compute several pair-wise time differences that correspond to hyperbolic functions. The simulation-based performance evaluation indicates that decent position accuracy can be achieved despite the narrow bandwidth of the channel.

    The second contribution is a study of how timing measurements in LTE can be combined. Round trip time (RTT) to the serving BS and time difference of arrival (TDOA) to the neighboring BS are used as measurements. We propose a filtering framework to deal with the existing uncertainty in the solution and evaluate with both simulated and experimental test data. The results indicate that the position accuracy is better than 40 meters 95% of the time.

    The third contribution is a comprehensive theory of how to estimate the signal observed in positive noise, that is, random variables with positive support. It is well known from the literature that order statistics give one order of magnitude lower estimation variance compared to the best linear unbiased estimator (BLUE). We provide a systematic survey of some common distributions with positive support, and provide derivations and summaries of estimators based on order statistics, including the BLUE one for comparison. An iterative global navigation satellite system (GNSS) localization algorithm, based on the derived estimators, is introduced to jointly estimate the receiver’s position and clock bias.

    The fourth contribution is an extension of the third contribution to a particular approach to utilize positive noise in nonlinear models. That is, order statistics have been employed to derive estimators for a generic nonlinear model with positive noise. The proposed method further enables the estimation of the hyperparameters of the underlying noise distribution. The performance of the proposed estimator is then compared with the maximum likelihood estimator when the underlying noise follows either a uniform or exponential distribution.

    List of papers
    1. Performance of OTDOA Positioning in Narrowband IoT Systems
    Open this publication in new window or tab >>Performance of OTDOA Positioning in Narrowband IoT Systems
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    2017 (English)In: 28th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC): Proceedings, IEEE, 2017Conference paper, Published paper (Refereed)
    Abstract [en]

    Narrowband Internet of Things (NB-IoT) is an emerging cellular technology designed to target low-cost devices, high coverage, long device battery life (more than ten years), and massive capacity. We investigate opportunities for device tracking in NB-IoT systems using Observed Time Difference of Arrival (OTDOA) measurements. Reference Signal Time Difference (RSTD) reports are simulated to be sent to the mobile location center periodically or on an ondemand basis. We investigate the possibility of optimizing the number of reports per minute budget on horizontal positioning accuracy using an on-demand reporting method based on the Signal to Noise Ratio (SNR) of the measured cells received by the User Equipment (UE). Wireless channels are modeled considering multipath fading propagation conditions. Extended Pedestrian A (EPA) and Extended Typical Urban (ETU) delay profiles corresponding to low and high delay spread environments, respectively, are simulated for this purpose. To increase the robustness of the filtering method, measurement noise outliers are detected using confidence bounds estimated from filter innovations.

    Place, publisher, year, edition, pages
    IEEE, 2017
    National Category
    Communication Systems Control Engineering Signal Processing
    Identifiers
    urn:nbn:se:liu:diva-142819 (URN)10.1109/PIMRC.2017.8292365 (DOI)000426970901053 ()978-1-5386-3531-5 (ISBN)978-1-5386-3529-2 (ISBN)
    Conference
    28th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), Montreal, QC, Canada, 08-13 October, 2017
    Projects
    Tracking in complex sensor systems, TRAX
    Available from: 2017-11-06 Created: 2017-11-06 Last updated: 2020-02-16
    2. Fusion of TOF and TDOA for 3GPP Positioning
    Open this publication in new window or tab >>Fusion of TOF and TDOA for 3GPP Positioning
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    2016 (English)In: Fusion 2016, 19th International Conference on Information Fusion: Proceedings, Institute of Electrical and Electronics Engineers (IEEE), 2016, p. 1454-1460Conference paper, Published paper (Refereed)
    Abstract [en]

    Positioning in cellular networks is often based on mobile-assisted measurements of serving and neighboring base stations. Traditionally, positioning is considered to be enabled when the mobile provides measurements of three different base stations. In this paper, we additionally investigate positioning based on time series of Time Of Flight (TOF) and Time Difference of Arrival (TDOA) measurements gathered from two base stations with known positions, where the specific base stations involved depend on the trajectory of the mobile station.. The set of two base stations is different along the trajectory. Each report contains TOF for the serving base station, and one TDOA measurement for the most favorable neighboring base station relative the serving base station. We derive explicit analytical solution related to the intersection of the absolute distance circle (from TOF) and relative distance hyperbola (from TDOA). We consider both geometric noise-free problem and the more realistic problem with additive noise as delivered in the 3rd Generation Partnership Project (3GPP) Long-Term Evolution (LTE). Positioning performance is evaluated using the Cramer-Rao lower bound.

    Place, publisher, year, edition, pages
    Institute of Electrical and Electronics Engineers (IEEE), 2016
    National Category
    Control Engineering
    Identifiers
    urn:nbn:se:liu:diva-130209 (URN)000391273400193 ()978-0-9964527-4-8 (ISBN)
    Conference
    19th International Conference on Information Fusion, Heidelberg, Germany, July 5-8, 2016
    Projects
    TRAX
    Funder
    EU, FP7, Seventh Framework Programme, 607400
    Available from: 2016-07-15 Created: 2016-07-15 Last updated: 2020-02-16Bibliographically approved
  • Public defence: 2020-03-27 12:35 TemCAS, T-building, Linköping
    Mutter, Amelia
    Linköping University, Department of Thematic Studies, Technology and Social Change. Linköping University, Faculty of Arts and Sciences.
    Multiple Imaginaries of the Fossil Fuel Free Future: Biogas and Electricity in Swedish Urban Transport2020Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    In the wake of the climate crisis, it has become increasingly evident that the fossil fuel-based transport system must undergo a global transformation. Numerous renewable fuel alternatives have been suggested, accompanied by imaginaries of how these technologies will contribute to a better future. These imaginaries have a wide-ranging impact because the implementation of each alternative technology will require the build-up of multifarious socio-technical ensembles that support their use. As a result, replacing fossil fuels with these renewable alternatives is likely to be a complex process. This dissertation considers the emergence of two such visions of renewable fuels studying imaginaries of biogas and electricity in the Swedish context. Biogas has a long history of use as a transport fuel in Sweden, where although it makes up a small percentage of total fuel use it also forms the basis of numerous municipal public transport systems. Meanwhile, electric vehicles have become increasingly attractive as more actors subscribe to an imaginary that sees the future of vehicles as shared, autonomous, and electric. This interaction is exemplified in urban public transportation as many municipalities begin to implement electric buses in an attempt to increase energy efficiency and reduce pollution. This thesis follows three case studies where the imaginaries of biogas and electric vehicles interact: urban public transport in the municipalities of Linköping and Malmö, and analysis of a comprehensive national policy document Fossil fuel freedom on the road. It contributes to a wider understanding of how visions can influence obduracy and change of transport alternatives within the wider transformation to a fossil fuel free future.  

    List of papers
    1. Mobilizing sociotechnical imaginaries of fossil-free futures - Electricity and biogas in public transport in Linkoping, Sweden
    Open this publication in new window or tab >>Mobilizing sociotechnical imaginaries of fossil-free futures - Electricity and biogas in public transport in Linkoping, Sweden
    2019 (English)In: Energy Research & Social Science, ISSN 2214-6296, E-ISSN 2214-6326, Vol. 49Article in journal (Refereed) Published
    Abstract [en]

    In response to concerns about climate change and fossil fuel reliance, Swedish national policy has set the ambitious goal of a fossil fuel independent transport fleet by 2030, opening up a widespread debate on renewable fuel choice. Across sectors and regions, this debate inspires competing visions for how this transition can be achieved. Using sociotechnical imaginaries for a theoretical background, this paper will examine two competing visions in the case of urban public transport in Linkoping, Sweden. While the biogas sociotechnical imaginary is based on the socio-material reality of the existing local infrastructure system, the electricity imaginary is gaining widespread support including from national and international interests. Using interviews with fourteen key actors and document analysis, this paper seeks to understand how local actors understand biogas and electric buses as competing technologies and how they mobilize these antagonistic imaginaries in their own visions of the future. Most often, actors mobilize both the biogas and the electric imaginary alongside each other, suggestion an attempt at reconciling them at the local level. This reconciliation sheds light on the challenge of applying national imaginaries to local cases and indicates that the complexity of multi-level systems must be considered in large scale sustainability transitions.

    Place, publisher, year, edition, pages
    ELSEVIER SCIENCE BV, 2019
    Keywords
    Sociotechnical imaginaries; Biogas; Electric vehicles; Local contexts
    National Category
    Social Sciences Interdisciplinary
    Identifiers
    urn:nbn:se:liu:diva-155537 (URN)10.1016/j.erss.2018.10.025 (DOI)000460444100001 ()
    Note

    Funding Agencies|Biogas Research Center; Linkoping University; Swedish Energy Agency

    Available from: 2019-03-27 Created: 2019-03-27 Last updated: 2020-02-03
    2. Obduracy and Change in Urban Transport: Understanding Competition Between Sustainable Fuels in Swedish Municipalities
    Open this publication in new window or tab >>Obduracy and Change in Urban Transport: Understanding Competition Between Sustainable Fuels in Swedish Municipalities
    2019 (English)In: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, SUSTAINABILITY, Vol. 11, no 21, article id 6092Article in journal (Refereed) Published
    Abstract [en]

    Within the renewable transport transition, a number of alternative technologies have emerged creating competing visions of how to reduce fossil fuel dependence. This paper examines the dynamics of competing fuels in two Swedish municipalities where electric buses have emerged, threatening incumbent biogas-based bus systems. While in Linkoping, actors are resistant to the promise of electrification, in Malmo the shift to electrify urban buses has already begun. Here, the theoretical perspectives of obduracy and sociotechnical imaginaries are used to analyze obduracy and change in Linkoping and Malmo, showing how the local contexts of these two municipalities influence obduracy or willingness to change. In Linkoping, perceived connections between the biogas-based bus system and local infrastructures of renewable waste management and organic food production cause actors to place biogas buses at the center of a sustainable future region, while in Malmo linkages to the gas network (which also distributes natural gas) cause actors to question the sustainability of the fuel in use and opens up the city to welcome new electric vehicle tests. These examples show how fuel alternatives interact with each other in the wider renewable energy transition.

    Place, publisher, year, edition, pages
    MDPI, 2019
    Keywords
    obduracy; sociotechnical imaginaries; urban public transport; electric vehicles; biogas
    National Category
    Energy Systems
    Identifiers
    urn:nbn:se:liu:diva-162889 (URN)10.3390/su11216092 (DOI)000501205200219 ()2-s2.0-85074853894 (Scopus ID)
    Note

    Funding Agencies|Swedish Energy Agency, Linkoping University

    Available from: 2020-01-02 Created: 2020-01-02 Last updated: 2020-02-03Bibliographically approved