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  • Ericson, Helena
    Örebro universitet, Institutionen för hälsovetenskaper.
    A Salutogenic perspective on resistance training: a study on healthy old adult women2018Licentiatavhandling, med artikler (Annet vitenskapelig)
    Abstract [en]

    The number of people aged 60 years and over has doubled since 1980and the World Health Organization predicts that the population of over60s will reach 2 billion by the year 2050. An ageing population poses bothchallenges and opportunities for society and for individuals. Whilst theseare positive statements, increases in life spans do not directly lead to increasesin health spans. The naturally occurring ageing process can leadto reductions in functionality and, in order to address this, scholars haveargued the benefits of regularly engaging in physical activity, and especiallyresistance training. Therefore, an important challenge for modernsociety is to develop strategies that delay the onset of disease, such as interventionsthat include physical activity. This licentiate thesis investigatesolder women’s physical activity in a resistance training context and howthis affects different aspects of their health.The overall aim of the thesis is to explore healthy and physically activeolder women’s experiences of what maintains and enhances their healthafter starting resistance training.This thesis used a quantitative and a qualitative approach to investigatea group of old adult women. Data collection was structured in questionnaires(n=32) with one intervention group and one control group for thepaper I, and focus group interviews (n=14) in paper II. Paper I studied theeffects of resistance training on physically active and healthy olderwomen. Paper II relates to the women who continued to exercise after theresistance training intervention ended in order to explore their health resources.The theoretical framework used in this thesis is a movement towardshealth as explained by salutogenic theory.This thesis showed that resistance training has positive effects on psychologicalwell-being and is important because it not only benefits thosewho are physically inactive, but also those who are already physically activeand healthy.From a salutogenic perspective, physical activity provides a meaningful,comprehensible and manageable way for older women to engage in theongoing process of maintaining health.

    Delarbeid
    1. Resistance training is linked to heightened positive motivational state and lower negative affect among healthy women aged 65–70
    Åpne denne publikasjonen i ny fane eller vindu >>Resistance training is linked to heightened positive motivational state and lower negative affect among healthy women aged 65–70
    2018 (engelsk)Inngår i: Journal of Women & Aging, ISSN 0895-2841, E-ISSN 1540-7322, Vol. 30, nr 5, s. 366-381Artikkel i tidsskrift (Fagfellevurdert) Published
    Abstract [en]

    Resistance training (RT) improves overall health, but the psychological effects of RT in healthy old adults have not been tested. The aim of this study was to investigate a sample of 65–70-year-old healthy and physically active women to assess their sense of coherence, health-related quality of life, hope, and affect, before and after taking part in a 24-week RT intervention (N = 14), compared to controls (N = 18). Findings showed a significant increase in hope (p = 0.013) and a significant decrease in negative affect (p = 0.002). Starting RT after age 65 does not appear to negatively impact on women’s psychological health but seems to be associated with important psychological health benefits.

    sted, utgiver, år, opplag, sider
    Taylor & Francis, 2018
    Emneord
    Healthy aging, hope, negative affect, psychological outcomes, resistance training
    HSV kategori
    Forskningsprogram
    Idrottsvetenskap
    Identifikatorer
    urn:nbn:se:oru:diva-57052 (URN)10.1080/08952841.2017.1301720 (DOI)000443902100002 ()28375777 (PubMedID)2-s2.0-85017094736 (Scopus ID)
    Tilgjengelig fra: 2017-04-12 Laget: 2017-04-12 Sist oppdatert: 2019-02-15bibliografisk kontrollert
    2. Health resources, ageing and physical activity: a study of physically active women aged 69–75 years
    Åpne denne publikasjonen i ny fane eller vindu >>Health resources, ageing and physical activity: a study of physically active women aged 69–75 years
    2018 (engelsk)Inngår i: Qualitative Research in Sport, Exercise and Health, ISSN 2159-676X, E-ISSN 2159-6778, Vol. 10, nr 2, s. 206-222Artikkel i tidsskrift (Fagfellevurdert) Published
    Abstract [en]

    Most studies on issues relating to ageing, physical activity and health are based on an understanding of what causes illness, rather than what promotes health. The health benefits of physical activity relate to questions about how to avoid physical inactivity and overcoming barriers to participating in physical activity, rather than why older people continue to be physically active. The aim of this study was to explore health resources in relation to physical activity, especially resistance training, that physically active women between the ages of 69–75 years characterise as important for the maintenance of health. In order to investigate these health resources, the study drew on salutogenic theory and the concept of sense of coherence. The analysed data came from interviews with 14 physically active Swedish women aged 69–75 years who had previously taken part in a resistance training intervention, but who also had continued to engage in physical activity and resistance training when the intervention ended. We identified seven health resources, social relations and care, positive energy, self-worth, capability in and about physical activity, the habit of exercising, identity as an exercising person and womanhood related to physical activity, in this case resistance training, that physically active women aged between 69 and 75 years characterised as important for maintaining their health. In conclusion, physical activity carried out in a stable group of peers provided a meaningful, comprehensible and manageable way for these older women to engage in the on-going process of maintaining health.

    sted, utgiver, år, opplag, sider
    Routledge, 2018
    Emneord
    Health resources, exercise, resistance training, salutogenesis, older adults
    HSV kategori
    Forskningsprogram
    Idrottsvetenskap
    Identifikatorer
    urn:nbn:se:oru:diva-61946 (URN)10.1080/2159676X.2017.1393453 (DOI)000431127700005 ()2-s2.0-85031919728 (Scopus ID)
    Tilgjengelig fra: 2017-10-24 Laget: 2017-10-24 Sist oppdatert: 2019-02-15bibliografisk kontrollert
  • Chatzipetrou, Panagiota
    et al.
    Software Engineering Research Lab Sweden, Blekinge Institute of Technology, Karlskrona, Sweden.
    Ouriques, Raquel
    Software Engineering Research Lab Sweden, Blekinge Institute of Technology, Karlskrona, Sweden.
    Gonzalez-Huerta, Javier
    Software Engineering Research Lab Sweden, Blekinge Institute of Technology, Karlskrona, Sweden.
    Approaching the Relative Estimation Concept with Planning Poker2018Inngår i: CSERC '18 The 7th Computer Science Education Research Conference, Saint Petersburg, Russian Federation, October 10 - 12, 2018: The 7th Computer Science Education Research Conference, Saint Petersburg, Russian Federation, October 10 - 12, 2018, ACM Digital Library, 2018, s. 21-25Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Simulation is a powerful instrument in the education process that can help students experience a reality context and understand complex concepts required to accomplish practitioners’ tasks. The present study aims to investigate the software engineering students’ perception about the usefulness of the Planning Poker technique in relation to their understanding of the relative estimation concept. We conducted a simulation exercise where students first estimated tasks applying the concepts of relative estimation based on the concepts explained in the lecture, and then to estimate tasks applying the Agile Planning Poker technique. To investigate the students’ perception, we used a survey at the end of each exercise. The preliminary results did not show statistical significance on the students’ confidence to estimate relatively the user stories. However, from the students’ comments and feedback, there are indications that students are more confident in using Agile Planning Poker when they are asked to estimate user stories. The study will be replicated in the near future to a different group of students with a different background, to have a better understanding and also identify possible flaws of the exercise.

  • Jönsson, Jessica H.
    Mid University, Östersund, Sweden.
    Localised Globalities and Social Work: Contemporary Challenges2014Doktoravhandling, med artikler (Annet vitenskapelig)
    Abstract [en]

    Recent global and structural transformations, a West-centric development agenda and the triumph of neoliberal politics have led to destructive consequences for many local communities and individual life chances. The global dominance of the West-centric development agenda, with its roots in the colonial past, has created uneven developments and an unjust world in which Western countries continue to gain advantages and increase their prosperity. Although a minority elite in many non-Western countries share the same interests as Western countries and their global organs, the majority of people in these countries are suffering from increasing socioeconomic inequalities. As a result of the dogmatic belief in a singular and West-centric modernity and its practices, many problems are considered to be the result of non-Western countries’ inabilities to complete the project of modernity in accordance with Western blueprints. This has also influenced social work as a global and modern profession. Social problems are often individualised and the reasons behind many inequalities are increasingly related to non-Western people’s individual shortcomings and traditional cultural backgrounds. In Western and non-Western countries equally are the neoliberal structural and institutional transformations ignored and social problems of individuals and families defined as a matter of wrong and deviant actions and choices.

    The main objective of the dissertation, which is constituted of four articles and an overall introduction and summary, is to examine the consequences of recent neoliberal globalisation based on the belief in a single and West-centric modernity and development agenda and their consequences for social work facing increasing global inequalities. The following research questions have guided the work: ‘How can social work play an effective role in combating social problems and otherisation, marginalisation and increasing inequalities in a globalised world?’, ‘How does the global development agenda function within the local arenas of social work?’, ‘Are development projects improving people’s life chances in local communities in non-Western countries?’, ‘How informed and responsive are social workers towards the global context of local problems?’

    The work is based on a qualitative design using qualitative content analysis for analysing data collected through interviews, participant observations and official documents. The results show that irrespective of where and in which context social problems are appearing, since local problems often have global roots, a global perspective to local problems should be included in every practices of social work in order to develop new methods of practices in an increasingly globalised field of work. Destruction of local communities, forced migration from non-Western countries, and marginalisation of people with immigrant background in Western countries should not be considered only as local problems, but also as problems with their roots in global structural inequalities which reproduces global social problems with local consequences.

    It is argued that social work should consider the dilemmas and problems connected to the taken for granted West-centric theories, understandings and practices of social work in order to develop new methods of practices for combating social problems, marginalisation and increasing inequalities in a globalised world. Such a position includes practicing multilevel social work, social work in global alliances beyond the division of East and West, and mobilisation against neoliberalism and the retreat of the welfare state. This requires critical standpoints against the relationship between the global context of the neoliberal ideology and practices in a Western-dominated and postcolonial world and the daily practices of social work.

     

     

  • Jönsson, Jessica H.
    Mid Sweden University, Östersund, Sweden.
    Development and empowerment through the Crèche and the role of female sex workers: Field practice in India2011Rapport (Annet vitenskapelig)
  • Jönsson, Jessica H.
    Department of Social work, Mid Sweden University, Östersund, Sweden.
    Servants of a 'sinking Titanic' or actors of change?: contested identities of social workers in Sweden [Passiva tjänare av ‘ett sjunkande skepp’ eller förändringsaktörer? Ifrågasatta identiteter hos socialarbetare i Sverige]2019Inngår i: European Journal of Social Work, ISSN 1369-1457, E-ISSN 1468-2664, Vol. 22, nr 2, s. 212-224Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Historically, social workers have been an integral part of a well-developed welfare state in Sweden. However, due to the neoliberal changes, which have seen the weakening of the support system for vulnerable groups and individuals, the traditional ‘solidary role’ of social workers has rapidly altered. This has created uncertainty and dilemmas for the identification of many social workers, who still perceive themselves as promoters of ‘welfare of the people’. This article dwells, therefore, on neoliberal transformations and the changing professional identity of practitioners. The study is based on a comprehensive empirical work of interviews with social workers. The results show a growing and widespread unease with new professional roles and functions of social workers as bureaucrats within a neoliberalised organisation of public social work. Some social workers still try to find creative and new ways of working in solidarity, while others, although critical, see adjustment to the new organisational frames as a way to continue their work. It is argued that social workers are not passive actors in the process of neoliberalisation of public social work in Sweden but could actively take different stances and choose their own identifications, in order to maintain the solidary role of social workers.

  • Jönsson, Jessica H.
    et al.
    Department of Social Work, Mid Sweden University, Östersund, Sweden.
    Flem, Aina Lian
    Norwegian University of Science and Technology, Trondheim, Norway.
    International field training in social work education: beyond colonial divides2018Inngår i: Social Work Education, ISSN 0261-5479, E-ISSN 1470-1227, Vol. 37, nr 7, s. 895-908Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    This paper examines the influence of and need for a critical and global-oriented social work education on students’ learning and developments in the context of international field training. The study uses mixed methods strategy of web survey, focus groups and document review of field reports. Participants in the study are social work students from social work programs in Norway and Sweden who have conducted their international field training in the Global South. The results of the study show that in order to obtain a critical and postcolonial understanding of global inequalities and the role of social work, students need to be truly prepared for international field training by critical and postcolonial knowledge, which will challenge many students’ West-centric perspectives and facilitate them by a self-reflective positioning throughout their field training. The imagination of traveling to and ‘learning about the others’ should be then replaced by a move beyond ‘us-and-them’ divides in line with the ethical principles and values of social work.

  • Qandeel, Mais
    Fribourg, Switzerland.
    Enforcing Human Rights of Palestinians in the Occupied Territory2018 (oppl. 1)Bok (Fagfellevurdert)
  • Jansson, Anton
    et al.
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Pejryd, Lars
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Dual-energy computed tomography investigation of additive manufacturing aluminium – carbon-fibre composite joints2019Inngår i: Heliyon, ISSN 2405-8440, Vol. 5, nr 2, artikkel-id e01200Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    In this work, aluminium–carbon-fibre reinforced plastic joints have been studied. Three types of samples were designed as double lap joints where the aluminium inserts were fabricated using both classical methods (milling) and additive manufacturing. Two versions of the joint were fabricated using additive manufacturing, one flat, and the other with small teeth designed to hook into the carbon-fibre plies. The joints were characterised using a non-linear, dual-energy computed tomography method to evaluate the bond between the composite and the metal inserts. The mechanical strength of the bonds was evaluated, both through tensile tests and four-point bending. A simple finite element model was used to discuss the joints behaviour. It was found that the joints fabricated using additive manufactured inserts were more resistant to peel stress than the milled inserts. In four-point bending tests the moment that the joint could withstand was increased by roughly 300% with the use of additive manufacturing and 400% with the use of additive manufacturing and small teeth. However, in tensile tests it was found that the teeth design reduced the maximum load capacity of the joints by roughly 30% due to porosity. Further, it was found that the additive manufactured samples did not add to the capability of withstanding shearstress. The information gained with the dual-energy computed tomography method was highly valuable as the behaviour of the joints would have been difficult to explain without the porosity information.

  • Rosendahl, Lene
    et al.
    Department of Clinical Physiology, County Hospital Ryhov, Jönköping, Sweden; Center for Medical Image Science and Visualization, CMIV, Linköping University Hospital, Linköping, Sweden.
    Blomstrand, Peter
    Department of Clinical Physiology, County Hospital Ryhov, Jönköping, Sweden.
    Ohlsson, Jan L.
    Department of Clinical Physiology, County Hospital Ryhov, Jönköping, Sweden.
    Björklund, Per-Gunnar
    Department of Clinical Physiology, County Hospital Ryhov, Jönköping, Sweden.
    Ahlander, Britt-Marie
    Department of Radiology, County Hospital Ryhov, Jönköping, Sweden.
    Starck, Sven-Ake
    Hospital Physics Unit, Dept. Of Oncology, County Hospital Ryhov, Jönköping, Sweden.
    Engvall, Jan E.
    Center for Medical Image Science and Visualization, CMIV, Linköping, Sweden; Department of Clinical Physiology, Linköping University Hospital, Linköping, Sweden.
    Late gadolinium uptake demonstrated with magnetic resonance in patients where automated PERFIT analysis of myocardial SPECT suggests irreversible perfusion defect2008Inngår i: BMC Medical Imaging, ISSN 1471-2342, E-ISSN 1471-2342, Vol. 8, artikkel-id 17Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    BACKGROUND: Myocardial perfusion single photon emission computed tomography (MPS) is frequently used as the reference method for the determination of myocardial infarct size. PERFIT(R) is a software utilizing a three-dimensional gender specific, averaged heart model for the automatic evaluation of myocardial perfusion. The purpose of this study was to compare the perfusion defect size on MPS, assessed with PERFIT, with the hyperenhanced volume assessed by late gadolinium enhancement magnetic resonance imaging (LGE) and to relate their effect on the wall motion score index (WMSI) assessed with cine magnetic resonance imaging (cine-MRI) and echocardiography (echo).

    METHODS: LGE was performed in 40 patients where clinical MPS showed an irreversible uptake reduction suggesting a myocardial scar. Infarct volume, extent and major coronary supply were compared between MPS and LGE as well as the relationship between infarct size from both methods and WMSI.

    RESULTS: MPS showed a slightly larger infarct volume than LGE (MPS 29.6 +/- 23.2 ml, LGE 22.1 +/- 16.9 ml, p = 0.01), while no significant difference was found in infarct extent (MPS 11.7 +/- 9.4%, LGE 13.0 +/- 9.6%). The correlation coefficients between methods in respect to infarct size and infarct extent were 0.71 and 0.63 respectively. WMSI determined with cine-MRI correlated moderately with infarct volume and infarct extent (cine-MRI vs MPS volume r = 0.71, extent r = 0.71, cine-MRI vs LGE volume r = 0.62, extent r = 0.60). Similar results were achieved when wall motion was determined with echo. Both MPS and LGE showed the same major coronary supply to the infarct area in a majority of patients, Kappa = 0.84.

    CONCLUSION: MPS and LGE agree moderately in the determination of infarct size in both absolute and relative terms, although infarct volume is slightly larger with MPS. The correlation between WMSI and infarct size is moderate.

  • Rosendahl, Lene
    et al.
    Department of Clinical Physiology, Ryhov County Hospital, Jönköping, Sweden; Center for Medical Image Science and Visualization, Linköping University, Linköping, Sweden.
    Ahlander, Britt-Marie
    Department of Radiology, Ryhov County Hospital, Jönköping, Sweden.
    Björklund, Per-Gunnar
    Department of Clinical Physiology, Ryhov County Hospital, Jönköping, Sweden.
    Blomstrand, Peter
    Department of Clinical Physiology, Ryhov County Hospital, Jönköping, Sweden.
    Brudin, Lars
    Department of Clinical Physiology, Kalmar County Hospital, Kalmar, Sweden; Department of Medical and Health Sciences, Linköping University, Linköping, Sweden.
    Engvall, Jan E.
    Center for Medical Image Science and Visualization, Linköping University, Linköping, Sweden.
    Image quality and myocardial scar size determined with magnetic resonance imaging in patients with permanent atrial fibrillation: a comparison of two imaging protocols2010Inngår i: Clinical Physiology and Functional Imaging, ISSN 1475-0961, E-ISSN 1475-097X, Vol. 30, nr 2, s. 122-129Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    BACKGROUND: Magnetic resonance imaging (MRI) of the heart generally requires breath holding and a regular rhythm. Single shot 2D steady-state free precession (SS_SSFP) is a fast sequence insensitive to arrhythmia as well as breath holding. Our purpose was to determine image quality, signal-to-noise (SNR) and contrast-to-noise (CNR) ratios and infarct size with a fast single shot and a standard segmented MRI sequence in patients with permanent atrial fibrillation and chronic myocardial infarction.

    METHODS: Twenty patients with chronic myocardial infarction and ongoing atrial fibrillation were examined with inversion recovery SS_SSFP and segmented inversion recovery 2D fast gradient echo (IR_FGRE). Image quality was assessed in four categories: delineation of infarcted and non-infarcted myocardium, occurrence of artefacts and overall image quality. SNR and CNR were calculated. Myocardial volume (ml) and infarct size, expressed as volume (ml) and extent (%), were calculated, and the methodological error was assessed.

    RESULTS: SS_SSFP had significantly better quality scores in all categories (P = 0.037, P = 0.014, P = 0.021, P = 0.03). SNR(infarct) and SNR(blood) were significantly better for IR_FGRE than for SS_SSFP (P = 0.048, P = 0.018). No significant difference was found in SNR(myocardium) and CNR. The myocardial volume was significantly larger with SS_SSFP (170.7 versus 159.2 ml, P<0.001), but no significant difference was found in infarct volume and infarct extent.

    CONCLUSION: SS_SSFP displayed significantly better image quality than IR_FGRE. The infarct size and the error in its determination were equal for both sequences, and the examination time was shorter with SS_SSFP.

  • Ahlander, Britt-Marie
    et al.
    Örebro universitet, Institutionen för hälsovetenskaper. Department of Radiology, Ryhov County Hospital, Jönköping, Sweden.
    Maret, Eva
    Department of Radiology, Ryhov County Hospital, Jönköping, Sweden; Department of Clinical Physiology, Karolinska University Hospital, Stockholm, Sweden.
    Brudin, Lars
    Department of Clinical Physiology, Kalmar County Hospital, Kalmar, Sweden.
    Starck, Sven-Ake
    Department of Natural Science and Biomedicine, School of Health Sciences, Jönköping University, Jönköping, Sweden; Department of Oncology, Hospital Physics, Ryhov County Hospital, Jönköping, Sweden.
    Engvall, Jan
    Department of Medical and Health Sciences, Linköping University, Linköping, Sweden; Department of Clinical Physiology, County Council of Östergötland, Linköping, Sweden; Center of Medical Image Science and Visualisation, Linköping University, Linköping, Sweden.
    An echo-planar imaging sequence is superior to a steady-state free precession sequence for visual as well as quantitative assessment of cardiac magnetic resonance stress perfusion2017Inngår i: Clinical Physiology and Functional Imaging, ISSN 1475-0961, E-ISSN 1475-097X, Vol. 37, nr 1, s. 52-61Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    BACKGROUND: To assess myocardial perfusion, steady-state free precession cardiac magnetic resonance (SSFP, CMR) was compared with gradient-echo-echo-planar imaging (GRE-EPI) using myocardial perfusion scintigraphy (MPS) as reference.

    METHODS: Cardiac magnetic resonance perfusion was recorded in 30 patients with SSFP and in another 30 patients with GRE-EPI. Timing and extent of inflow delay to the myocardium was visually assessed. Signal-to-noise (SNR) and contrast-to-noise (CNR) ratios were calculated. Myocardial scar was visualized with a phase-sensitive inversion recovery sequence (PSIR). All scar positive segments were considered pathologic. In MPS, stress and rest images were used as in clinical reporting. The CMR contrast wash-in slope was calculated and compared with the stress score from the MPS examination. CMR scar, CMR perfusion and MPS were assessed separately by one expert for each method who was blinded to other aspects of the study.

    RESULTS: Visual assessment of CMR had a sensitivity for the detection of an abnormal MPS at 78% (SSFP) versus 91% (GRE-EPI) and a specificity of 58% (SSFP) versus 84% (GRE-EPI). Kappa statistics for SSFP and MPS was 0·29, for GRE-EPI and MPS 0·72. The ANOVA of CMR perfusion slopes for all segments versus MPS score (four levels based on MPS) had correlation r = 0·64 (SSFP) and r = 0·96 (GRE-EPI). SNR was for normal segments 35·63 ± 11·80 (SSFP) and 17·98 ± 8·31 (GRE-EPI), while CNR was 28·79 ± 10·43 (SSFP) and 13·06 ± 7·61 (GRE-EPI).

    CONCLUSION: GRE-EPI displayed higher agreement with the MPS results than SSFP despite significantly lower signal intensity, SNR and CNR.

  • Rosendahl, Lene
    et al.
    Department of Clinical Physiology, County Hospital Ryhov, Jönköping, Sweden; Center for Medical Image Science and Visualization, CMIV, Linköping, Sweden.
    Blomstrand, Peter
    Department of Clinical Physiology, County Hospital Ryhov, Jönköping, Sweden.
    Heiberg, Einar
    Department of Clinical Physiology, Lund University Hospital, Lund, Sweden.
    Ohlsson, Jan
    Department of Clinical Physiology, County Hospital Ryhov, Jönköping, Sweden.
    Björklund, Per-Gunnar
    Department of Clinical Physiology, County Hospital Ryhov, Jönköping, Sweden.
    Ahlander, Britt-Marie
    Department of Radiology, County Hospital Ryhov, Jönköping, Sweden.
    Engvall, Jan
    Center for Medical Image Science and Visualization, CMIV, Linköping, Sweden; Department of Clinical Physiology, Linköping University Hospital, Linköping, Sweden.
    Computer-assisted calculation of myocardial infarct size shortens the evaluation time of contrast-enhanced cardiac MRI2008Inngår i: Clinical Physiology and Functional Imaging, ISSN 1475-0961, E-ISSN 1475-097X, Vol. 28, nr 1, s. 1-7Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    BACKGROUND: Delayed enhancement magnetic resonance imaging depicts scar in the left ventricle which can be quantitatively measured. Manual segmentation and scar determination is time consuming. The purpose of this study was to evaluate a software for infarct quantification, to compare with manual scar determination, and to measure the time saved.

    METHODS: Delayed enhancement magnetic resonance imaging was performed in 40 patients where myocardial perfusion single photon emission computed tomography imaging showed irreversible uptake reduction suggesting a myocardial scar. After segmentation, the semi-automatic software was applied. A scar area was displayed, which could be corrected and compared with manual delineation. The different time steps were recorded with both methods.

    RESULTS: The software shortened the average evaluation time by 12.4 min per cardiac exam, compared with manual delineation. There was good correlation of myocardial volume, infarct volume and infarct percentage (%) between the two methods, r = 0.95, r = 0.92 and r = 0.91 respectively.

    CONCLUSION: A computer software for myocardial volume and infarct size determination cut the evaluation time by more than 50% compared with manual assessment, with maintained clinical accuracy.

  • Lindner, Helen
    et al.
    Örebro universitet, Institutionen för hälsovetenskaper.
    Montgomery, Scott
    Örebro universitet, Institutionen för medicinska vetenskaper. Clinical Epidemiology Unit, Department of Medicine, Karolinska Institute, Stockholm, Sweden; Department of Epidemiology and Public Health, University College London, London, Sweden.
    Hiyoshi, Ayako
    Örebro universitet, Institutionen för medicinska vetenskaper.
    Risk of depression following traumatic limb amputation– a general population-based cohort study2018Inngår i: ISPO International Central European ISPO Conference 2018 Slovenia: Book of Abstracts / [ed] ISPO International Central European ISPO Conference 2018 Slovenia, Slovenia: ISPO , 2018Konferansepaper (Fagfellevurdert)
    Abstract [en]

    INTRODUCTION: Traumatic limb amputation (TLA) is a sudden event that accompanies life changes in physical functioning, body image and challenges in daily lives. Amputees may experience significant levels of distress and be at risk of depression may be at risk of depression. However, evidence for depression risk after TLA has been limited because of the use of cross-sectional study design of a small or selected sample and the lack of a comparison with non-amputees. Confounding from pre-amputated occupational and individual characteristics was possible but no study has controlled for these.  AIMS: We aimed to examine whether amputation may be associated with an increased risk of depression required inpatient and outpatient hospital treatment. 

    METHODS: Our study population was drawn from a cohort of men (n=284,257) who underwent a compulsory conscription assessment for between 1969 and 1976. Complete data were available for 189,220 men. We followed these men from 1st January 1985, when these men were between age 29 and 34 years until the date of depression. We used the ICD codes in Swedish patient register to identify TLA (primary and secondary diagnosis) and depression after TLA (primary diagnosis). Cox regression was used to calculate hazard ratios and 95% confidence intervals [CI] for the association of amputation with depression. Age was used as the underlying time scale, and the diagnosis of amputation was included as a time-dependent exposure status, with the value zero before amputation and one after the date of amputation. Birth year, region, occupation, cognitive and physical function and stress resilience in adolescence were considered as potential confounding factors and adjusted for in the analysis. 

    RESULTS: In total 401 men experienced amputation between 1985 and 2009, with the mean age of amputation was age 42.5 years (SD 7.4). Those who experience amputation were more likely to have low stress resilience and cognitive function in adolescence and engaged in farming and manual work in 1985.  Cox regression produced unadjusted hazard ratio 2.61 (CI 1.62-4.21, p<0.001), i.e. 2.61 times risk of subsequent depression diagnosis for risk of subsequent depression compared with amputation-free individuals. Moderate and low cognitive function, physical fitness and stress resilience were associated with elevated risk of depression. Working for farms and manual work was also associated with higher depression risk. When the analysis was adjusted for these factors, the risk of depression after amputation changed little, 2.53 (CI 1.57-4.08, p <0.001) times risk of depression remained compared with amputation-free individuals.

    CONCLUSIONS: As we hypothesized, TLA was associated with an increased risk of depression over more than two decades of follow-up of men from age 29 to 57 years. Higher levels of depressive symptoms were noted among working age amputees and our study group also comprised of working age amputees.  Future research may benefit from investigating potential influence of different amputation sites, degree, and prosthesis use involved in order to set intervention target. 

  • van der Veen, Ike
    et al.
    Vrije Universiteit, Dept. Environment & Health, Amsterdam, The Netherlands.
    Fiedler, Heidelore
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    de Boer, Jacob
    Vrije Universiteit, Dept. Environment & Health, Amsterdam, The Netherlands.
    Bi-ennial Global Interlaboratory Assessment on Persistent Organic Pollutants – Third Round 2016/2017, Organochlorine Pesticides, PCBs and Brominated Flame Retardants2017Inngår i: Organohalogen Compounds, Vol. 79, s. 575-578Artikkel i tidsskrift (Fagfellevurdert)
  • Fiedler, Heidelore
    et al.
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    van der Veen, Ike
    Vrije Universiteit, Environment & Health, Amsterdam, Netherlands.
    de Boer, Jacob
    Vrije Universiteit, Environment & Health, Amsterdam, Netherlands.
    Bi-ennial Global Interlaboratory Assessment on Persistent Organic Pollutants: Third Round 2016/2017, Dioxin-like POPs and Perfluorinated Alkyl Substances2017Inngår i: Organohalogen Compounds, Vol. 79, s. 237-240Artikkel i tidsskrift (Fagfellevurdert)
  • Marshall, Matilda
    et al.
    Örebro universitet, Restaurang- och hotellhögskolan. Restauranghögskolan, Umeå universitet, Umeå.
    Hagström, Charlotte
    Institutionen för kulturvetenskaper, Lunds universitet, Lund.
    ”Zone taken!”: Kunskap, förändring och kulturell gemenskap i mobilspelet Turf2018Inngår i: Idrott, historia & samhälle, ISSN 0280-2775, s. 72-91Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    How does a mobile game become a sport related community with its own cultural expressions and norms? This explorative article examines Turf, a mobile game where the players use the GPS function to navigate both a digital map and the physical landscape. By locating digital zones in the landscape, similar to the sport ori- enteering, the player gains points. Around the game various social activities, relations and norms have evolved. The purpose of this article is to empirically explore the phenomenon and its develop- ment and to discuss how cultural connections are created and es- tablished. We depart from the assumption that the digital game does not exclude a relation with the physical environment; instead there is an interaction between the digital and physical landscape that create new meanings and relations. Since the introduction in 2010, the game has created its own set of language, patterns of movement, objects and norms. Further, as the game is constantly evolving, so is the players’ use of Turf, which is a prerequisite for the survival of cultural phenomena.

  • Wiedemann, Thomas
    et al.
    Örebro universitet, Institutionen för naturvetenskap och teknik. German Aerospace Center, Oberpfaffenhofen, Germany.
    Lilienthal, Achim
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Shutin, Dmitriy
    German Aerospace Center, Oberpfaffenhofen, Germany.
    Analysis of Model Mismatch Effects for a Model-based Gas Source Localization Strategy Incorporating Advection Knowledge2019Inngår i: Sensors, ISSN 1424-8220, E-ISSN 1424-8220, Vol. 19, nr 2, artikkel-id 520Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    In disaster scenarios, where toxic material is leaking, gas source localization is a common but also dangerous task. To reduce threats for human operators, we propose an intelligent sampling strategy that enables a multi-robot system to autonomously localize unknown gas sources based on gas concentration measurements. This paper discusses a probabilistic, model-based approach for incorporating physical process knowledge into the sampling strategy. We model the spatial and temporal dynamics of the gas dispersion with a partial differential equation that accounts for diffusion and advection effects. We consider the exact number of sources as unknown, but assume that gas sources are sparsely distributed. To incorporate the sparsity assumption we make use of sparse Bayesian learning techniques. Probabilistic modeling can account for possible model mismatch effects that otherwise can undermine the performance of deterministic methods. In the paper we evaluate the proposed gas source localization strategy in simulations using synthetic data. Compared to real-world experiments, a simulated environment provides us with ground truth data and reproducibility necessary to get a deeper insight into the proposed strategy. The investigation shows that (i) the probabilistic model can compensate imperfect modeling; (ii) the sparsity assumption significantly accelerates the source localization; and (iii) a-priori advection knowledge is of advantage for source localization, however, it is only required to have a certain level of accuracy. These findings will help in the future to parameterize the proposed algorithm in real world applications.

  • Burgués, Javier
    et al.
    Institute for Bioengineering of Catalonia (IBEC),The Barcelona Institute of Science and Technology, Baldiri Reixac, Barcelona, Spain; Department of Electronics and Biomedical Engineering, Universitat de Barcelona, Barcelona, Spain.
    Hernandez Bennetts, Victor
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Lilienthal, Achim
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Marco, Santiago
    Institute for Bioengineering of Catalonia (IBEC),The Barcelona Institute of Science and Technology, Baldiri Reixac, Barcelona, Spain; Department of Electronics and Biomedical Engineering, Universitat de Barcelona, Barcelona, Spain.
    Smelling Nano Aerial Vehicle for Gas Source Localization and Mapping2019Inngår i: Sensors, ISSN 1424-8220, E-ISSN 1424-8220, Vol. 19, nr 3, artikkel-id 478Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    This paper describes the development and validation of the currently smallest aerial platform with olfaction capabilities. The developed Smelling Nano Aerial Vehicle (SNAV) is based on a lightweight commercial nano-quadcopter (27 g) equipped with a custom gas sensing board that can host up to two in situ metal oxide semiconductor (MOX) gas sensors. Due to its small form-factor, the SNAV is not a hazard for humans, enabling its use in public areas or inside buildings. It can autonomously carry out gas sensing missions of hazardous environments inaccessible to terrestrial robots and bigger drones, for example searching for victims and hazardous gas leaks inside pockets that form within the wreckage of collapsed buildings in the aftermath of an earthquake or explosion. The first contribution of this work is assessing the impact of the nano-propellers on the MOX sensor signals at different distances to a gas source. A second contribution is adapting the ‘bout’ detection algorithm, proposed by Schmuker et al. (2016) to extract specific features from the derivative of the MOX sensor response, for real-time operation. The third and main contribution is the experimental validation of the SNAV for gas source localization (GSL) and mapping in a large indoor environment (160 m2) with a gas source placed in challenging positions for the drone, for example hidden in the ceiling of the room or inside a power outlet box. Two GSL strategies are compared, one based on the instantaneous gas sensor response and the other one based on the bout frequency. From the measurements collected (in motion) along a predefined sweeping path we built (in less than 3 min) a 3D map of the gas distribution and identified the most likely source location. Using the bout frequency yielded on average a higher localization accuracy than using the instantaneous gas sensor response (1.38 m versus 2.05 m error), however accurate tuning of an additional parameter (the noise threshold) is required in the former case. The main conclusion of this paper is that a nano-drone has the potential to perform gas sensing tasks in complex environments.

  • Burgués, Javier
    et al.
    Department of Electronic and Biomedical Engineering, Universitat de Barcelona, Barcelona, Spain; Institute for Bioengineering of Catalonia (IBEC), Barcelona, Spain.
    Hernandez Bennetts, Victor
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Lilienthal, Achim
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Marco, Santiago
    Department of Electronic and Biomedical Engineering, Universitat de Barcelona, Barcelona, Spain; Institute for Bioengineering of Catalonia (IBEC), Barcelona, Spain.
    3D Gas Distribution with and without Artificial Airflow: An Experimental Study with a Grid of Metal Oxide Semiconductor Gas Sensors2018Inngår i: Proceedings, E-ISSN 2504-3900, Vol. 2, nr 13, artikkel-id 911Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Gas distribution modelling can provide potentially life-saving information when assessing the hazards of gaseous emissions and for localization of explosives, toxic or flammable chemicals. In this work, we deployed a three-dimensional (3D) grid of metal oxide semiconductor (MOX) gas sensors deployed in an office room, which allows for novel insights about the complex patterns of indoor gas dispersal. 12 independent experiments were carried out to better understand dispersion patters of a single gas source placed at different locations of the room, including variations in height, release rate and air flow profiles. This dataset is denser and richer than what is currently available, i.e., 2D datasets in wind tunnels. We make it publicly available to enable the community to develop, validate, and compare new approaches related to gas sensing in complex environments.

  • Åhlgren, Kristina
    et al.
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Sjöberg, Viktor
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Bäckström, Mattias
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Leaching of U, V, Ni and Mo from Alum Shale Waste as a Function of Redox and pH - Suggestion for a Leaching method2018Inngår i: Mine Water: Risk to Opportunity / [ed] Wolkersdorfer, Ch., Sartz, L., Weber, A., Burgess, J. and Tremblay, G., Pretoria, South Africa: Tshwane University of Technology , 2018, Vol. II, s. 782-787Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Alum shale residues in the form of nes and ash were leached at di erent pH and redox conditions. Total concentrations and mineral analysis indicate loss of some elements in burned shale, and redistribution of others. Uranium and nickel were shown to be more leachable from nes than from ashes. Decreased pH favoured leaching of Ni, U and V, whereas increased pH resulted in increased leaching of molybdenum. Redox conditions a ected leaching of Mo and V, but not U and Ni. us the method can be used as an estimate for leaching at di erent redox and pH conditions.

  • Sartz, Lotta
    et al.
    Örebro universitet, Institutionen för naturvetenskap och teknik. Bergskraft Bergslagen AB, Kumla, Sweden.
    Sädbom, Stefan
    Bergskraft Bergslagen AB, Kumla, Sweden.
    Bäckström, Mattias
    Örebro universitet, Institutionen för naturvetenskap och teknik. Bergskraft Bergslagen AB, Kumla, Sweden.
    Remediation of Historic Waste Rock by Injection of Green Liquor Dregs: Results From a Field Scale Trial, Gladhammar, Southern Sweden2018Inngår i: Mine Water: Risk to Opportunity / [ed] Wolkersdorfer, Ch., Sartz, L., Weber, A., Burgess, J. and Tremblay, G, Pretoria, South Africa: Tshwane University of Technology , 2018, Vol. II, s. 1124-1129Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Mining in Gladhammar, southern Sweden started in the 15th century, generating waste rock containing copper, cobalt, and arsenic. During remediation (2011) some waste rock was preserved, due to its geoscienti- c value, and placed on a geomembrane surface. Eventually, it became apparent that it had a substantial environmental impact (pH 3.8, Cu 96 mg/L, Co 21 mg/L). In 2017, green liquor dregs was injected in order to increase pH and decrease trace element mobility. Ten months a er injection pH was 8.3 and concentrations of copper and cobalt 1.3 mg/L and 1.1 mg/L, respectively. Evaluation will continue for at least five years.

  • Sartz, Lotta
    et al.
    Örebro universitet, Institutionen för naturvetenskap och teknik. Bergskraft Bergslagen AB, Kumla, Sweden.
    Hamilton, Ian
    Econova Recycling AB, c/o Alfred Nobel Science Park, Örebro Sweden.
    Macsik, Josef
    Ecoloop AB, Stockholm, Sweden.
    Maurice, Christian
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Luleå, Sweden.
    Sädbom, Stefan
    Bergskraft Bergslagen AB, Kumla, Sweden.
    Westin, Gunnar
    RISE Processum AB, Örnsköldsvik, Sweden.
    Bäckström, Mattias
    Örebro universitet, Institutionen för naturvetenskap och teknik. Bergskraft Bergslagen AB, Kumla, Sweden.
    Green Liquor Dregs from Pulp and Paper Industry used in Mine Waste Management: a Symbiosis Project (GLAD) between two Swedish Base Industries2017Inngår i: Mine Water & Circular Economy / [ed] Wolkersdorfer, C., Sartz, L., Sillanpää, M. and Häkkinen, A, Lappeenranta, Finland: Lappeenranta University of Technology , 2017, Vol. II, s. 862-868Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Mining has been and still is an important industry in Sweden. Leaching from sulfidic mining waste is however a serious environmental issue that can bring acidity and metals in solution. Simultaneously, green liquor dreg (GLD) with potential to decrease oxygen transport to the waste and neutralize acid leachate, is generated by the pulp and paper industry and deposited in landfills. The aim of the project is to promote valorisation of GLD, identify hinders and create a database providing information about the material and its variability to enhance establishment of circular economy for the pulp and paper mill waste.

  • Ekblom, Sanna
    et al.
    Örebro University, Örebro, Sweden.
    Sartz, Lotta
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Bäckström, Mattias
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Treatment of Historical Mining Waste using different Incineration Ashes2017Inngår i: Mine Water & Circular Economy / [ed] Wolkersdorfer, C., Sartz, L., Sillanpää, M. and Häkkinen, A, Lappeenranta, Finland: Lappeenranta University of Technology , 2017, Vol. II, s. 1125-1132Konferansepaper (Fagfellevurdert)
    Abstract [en]

    ARD from historical mining sites in Sweden is a major source for trace elements to surface waters. In order to be able to treat a large portion of these sites cost effective reclamation methods is necessary. Incineration ashes were used in leaching tests to study their effect on a highly weathered mining waste in order to neutralize acidity and immobilize trace elements. This study shows that ashes can be used to increase pH and decrease trace element mobility from oxidized mining waste. Increased leaching of Cl, Mo and Sb, however, needs to be considered for waste fuel ashes before use.

  • Bäckström, Mattias
    et al.
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Sartz, Lotta
    Örebro universitet, Institutionen för naturvetenskap och teknik. Bergskraft Bergslagen AB, Kumla, Sweden.
    Sädbom, Stefan
    Bergskraft Bergslagen AB, Kumla, Sweden.
    Mining Waste as an Exploration Tool and Secondary Resource2017Inngår i: Mine Water & Circular Economy / [ed] Wolkersdorfer, C., Sartz, L., Sillanpää, M. and Häkkinen, A, Lappeenranta, Finland: Lappeenranta University of Technology , 2017, Vol. II, s. 964-971Konferansepaper (Fagfellevurdert)
    Abstract [en]

    There is today no overall information about how much mining waste there is in Sweden and what it contains. This project focused on samples from waste rock, tailings and slag from the historical mining region Bergslagen, Sweden. Modern dissolution and analytical methods were used in order to determine approximately 50 elements in the samples. Modern analytical data for the historical mining waste is useful as an exploration tool and can provide information about remaining or new resources underground. Results show that there is a potential for recovery of critical elements from mining waste as well as dealing with environmental problems.

  • Åhlgren, Kristina
    et al.
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Sjöberg, Viktor
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Sartz, Lotta
    Örebro universitet, Institutionen för naturvetenskap och teknik. Bergskraft Bergslagen AB, Kumla, Sweden.
    Bäckström, Mattias
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Understanding Groundwater Composition at Kvarntorp, Sweden, from Leaching Tests and Multivariate Statistics2017Inngår i: Mine Water & Circular Economy / [ed] Wolkersdorfer, C., Sartz, L., Sillanpää, M. and Häkkinen, A, Lappeenranta, Finland: Lappeenranta University of Technology , 2017, Vol. II, s. 770-776Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Due to oil production from alum shale, the Kvarntorp area is heavily polluted. A waste deposit consisting mostly of shale ash and fines is of important concern. Groundwater shows that parameters such as pH, U, V, Ni and Mo are different at different localities around the deposit. Leaching tests indicate that burned and unburned shale residues leave different signatures on leachates. Principal component analysis of groundwater and leaching tests suggest that ground-water is affected by the waste deposit and that it is more influenced by shale ash than by fines.

  • Rudenko, Andrey
    et al.
    Örebro universitet, Institutionen för naturvetenskap och teknik. Bosch Corporate Research, Stuttgart, Germany.
    Palmieri, Luigi
    Bosch Corporate Research, Stuttgart, Germany.
    Lilienthal, Achim
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Arras, Kai
    Bosch Corporate Research, Stuttgart, Germany.
    Human Motion Prediction under Social Grouping Constraints2018Inngår i: 2018 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), IEEE, 2018, s. 3358-3364Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Accurate long-term prediction of human motion inpopulated spaces is an important but difficult task for mobile robots and intelligent vehicles. What makes this task challenging is that human motion is influenced by a large variety offactors including the person’s intention, the presence, attributes, actions, social relations and social norms of other surrounding agents, and the geometry and semantics of the environment. In this paper, we consider the problem of computing human motion predictions that account for such factors. We formulate the task as an MDP planning problem with stochastic policies and propose a weighted random walk algorithm in which each agent is locally influenced by social forces from other nearby agents. The novelty of this paper is that we incorporate social grouping information into the prediction process reflecting the soft formation constraints that groups typically impose to their members’ motion. We show that our method makes more accurate predictions than three state-of-the-art methods in terms of probabilistic and geometrical performance metrics.

  • Fan, Hongqi
    et al.
    National University of Defense Technology, Changsa, P. R. China.
    Lu, Dawei
    National University of Defense Technology, Changsa, P. R. China.
    Kucner, Tomasz Piotr
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Magnusson, Martin
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Lilienthal, Achim
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    2D Spatial Keystone Transform for Sub-Pixel Motion Extraction from Noisy Occupancy Grid Map2018Inngår i: Proceedings of 21st International Conference on Information Fusion (FUSION), 2018, s. 2400-2406Konferansepaper (Fagfellevurdert)
    Abstract [en]

    In this paper, we propose a novel sub-pixel motionextraction method, called as Two Dimensional Spatial KeystoneTransform (2DS-KST), for the motion detection and estimationfrom successive noisy Occupancy Grid Maps (OGMs). It extendsthe KST in radar imaging or motion compensation to 2Dreal spatial case, based on multiple hypotheses about possibledirections of moving obstacles. Simulation results show that 2DSKSThas a good performance on the extraction of sub-pixelmotions in very noisy environment, especially for those slowlymoving obstacles.

  • Schindler, Maike
    et al.
    University of Cologne, Department of Special Education.
    Lilienthal, Achim
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Eye-Tracking For Studying Mathematical Difficulties: Also In Inclusive Settings2018Inngår i: Proceedings of Annual Meeting of the International Group for the Psychology of Mathematics Education (PME-42), Umeå., Sweden: PME , 2018, Vol. 4, s. 115-122Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Eye-Tracking (ET) is a promising tool for mathematics education research. Interest is fue­led by recent theoretical and technical developments, and the potential to identify strategies students use in mathematical tasks. This makes ET in­teresting for studying students with mathematical difficulties (MD), also with a view on inclusive settings. We present a systematic analysis of the opportunities ET may hold for understanding strategies of students with MD. Based on an empirical study with 20 fifth graders (10 with MD), we illustrate that and why ET offers opportunities especially for students with MD and describe main advantages. We also identify limitations of think aloud protocols, using ET as validation method, and present characteristics of students’ strategies in tasks on quantity recognition in structured whole number representations.

  • Lindner, Helen Y
    et al.
    Örebro universitet, Institutionen för hälsovetenskaper.
    Lilienthal, Achim
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Karlsson, Gunilla
    Adult rehabilitation centre, Region Örebro County, Örebro, Sweden.
    Lundqvist, Lars-Olov
    Örebro universitet, Institutionen för hälsovetenskaper. University Health Care Research Centre.
    Eye gaze technology to gain access to cognitive processes in individuals with profound intellectual and physical disabilities (PIPD)2018Konferansepaper (Annet vitenskapelig)
    Abstract [en]

    Objective: Individuals with profound intellectual and physical disabilities (PIPD) often cannot speak for themselves and do things for themselves. Their level of cognitive abilities is unclear. Eye gaze technology has the potential to gain access to cognitive processes and eventually enable communication among these individuals.

    Method: Six individuals with PIPD were given multiple sessions of eye gaze training (9-36 sessions) between February 17 to October 18. They used a screen eye-tracker (Tobii pc eye-mini) to control the objects/icons on the screen. An eye-gaze training program with different levels of activities was used to teach cause and effect, give appropriate response, explore the whole screen, target specific objects, choosing objects AND turn taking.

  • Krishna, Sai
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Join the Group Formations using Social Cues in Social Robots2018Inngår i: AAMAS '18 Proceedings of the 17th International Conference on Autonomous Agents and MultiAgent Systems, Stockholm, Sweden: The International Foundation for Autonomous Agents and Multiagent Systems (IFAAMAS), 2018, s. 1766-1767Konferansepaper (Fagfellevurdert)
    Abstract [en]

    This work investigates how agents can spatially orient themselves into formations which provide good conditions for enabling social interaction. To achieve this, we are using socio-psychological notion, F-formation in our project and based on this concept, we detect positions of other agents in a scene to find the optimum placement. Using both simulation and real robotic systems, the system aims to achieve a functionality which enables an agent to autonomously place itself within a group.

  • Krishna, Sai
    et al.
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Loutfi, Amy
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Robotics for Successful Ageing2018Inngår i: Successful ageing in an interdisciplinary context: popular science presentations / [ed] Eleonor Kristoffersson & Kerstin Nilsson, Örebro, Sweden: Örebro University , 2018, s. 29-35Kapittel i bok, del av antologi (Annet (populærvitenskap, debatt, mm))
    Abstract [en]

    The main idea of the ongoing research is to use robotics to create new opportunities to help older people to remain alone in their apartments which can beachieved by using robots as an interacting tool between the elderly and theirfamily members or doctors. This can be done by building a system (software)for Mobile Robots to work autonomously (self-driving) and semi-autono-mously (controlled by the user) when necessary, depending on the situationand the surroundings. This system is integrated with social cues, particularlyproxemics, to know and understand human space, which is very importantfor social interaction. In conclusion, we are interested in having a Socially Intelligent Robot, which could use the social cues, proxemics, to have a natural interaction with people in groups.

  • Arensmeier, Cecilia
    Örebro universitet, Institutionen för humaniora, utbildnings- och samhällsvetenskap.
    Grundskolebetyg under tre betygssystem: Fördelning på betygssteg och genomsnittliga ämnesbetyg 1990-20172019Rapport (Annet vitenskapelig)
    Abstract [sv]

    I rapporten beskrivs, med hjälp av SCB:s betygsstatistik, betygsutfallet för årskurs 9 åren 1990-2017, då tre olika betygssystem varit i bruk (2013-17 ingår även årskurs 6). Tonvikten ligger på att åskådliggöra hur elevernas prestationer i olika ämnen fördelas på de betygssteg som används vid olika tidpunkter. Därigenom synliggörs också hur betygssystemens skilda logiker och språk har betydelse för särskilt de elever som presenterar svagast. Systemen som sådana jämförs således inte, utan enbart hur betygssystemen fördelar alla elevprestationer i åk 9 under 28 års tid. En analys av de politiska ambitionerna bakom olika betygsreformer – vilka problem de ska lösa – ramar in rapporten. En av de mest framträdande slutsatserna är att införandet av ett målrelaterat betygssystem på 1990-talet, med skarp gräns för godkänt, omgående – i kontrast till förväntningarna – medför att en märkbar och över tid påtagligt stabil andel grundskoleelever inte når upp till den godkända nivån. Bytet till en ny skala på 2010-talet innebär härvidlag ingen förändring, vilket också är i linje med den politiska avsikten att låta gränsen för godkänt ligga fast. Under de målrelaterade systemen syns i många ämnen samtidigt en kontinuerlig ökning av andelen elever som får de högsta betygen. De sista åren med ett relativt betygssystem (1990-97) uppvisar, i linje med det systemets logik, en större stabilitet i fördelningen. Vissa ämnesskillnader finns dock under alla tre betygssystemen. 

  • Juranović Cindrić, Iva
    et al.
    Department of Chemistry, Faculty of Science, University of Zagreb, Zagreb, Croatia.
    Zeiner, Michaela
    Örebro universitet, Institutionen för naturvetenskap och teknik. Department of Chemistry, BOKU – University of Natural Resources and Life Sciences, Vienna, Austria.
    Starčević, Ana
    Department of Chemistry, Faculty of Science, University of Zagreb, Zagreb, Croatia.
    Stingeder, Gerhard
    Department of Chemistry, BOKU – University of Natural Resources and Life Sciences, Vienna, Austria.
    Metals in pine needles: characterisation of bio-indicators depending on species2018Inngår i: International Journal of Environmental Science and Technology, ISSN 1735-1472, E-ISSN 1735-2630Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Air pollution can be studied by appropriate bio-indicators, such as pine needles due to their waxy surface. Metal uptake and accumulation is determined by on growing area, but also on the respective species. Scope of the study was to analyse needles of Pinus densiflora Siebold et Zucc., Pinus nigra Arnold, Pinus sylvestris L., and Pinus thunbergiana Franco for metals and metalloids, namely Aluminum, Arsenic, Boron, Barium, Calcium, Cadmium, Cobalt, Copper, Chromium, Iron, Potassium, Lithium, Magnesium, Manganese, Molybdenum, Sodium, Nickel, Lead, Selenium, Strontium, and Zinc. Quantitation of the analytes was performed using inductively coupled plasma atomic emission spectrometry and inductively coupled plasma sector field mass spectrometry after acidic microwave-assisted digestion.

    The obtained data were checked for statistically significant differences. The metal levels differ between the various species, but no general tendency was found for all metals. Since the environmental conditions were the same for all sampled trees, the differences in metal accumulation are supposed to be linked to species of pine tree.

    The diverse accumulation behaviour can be used for treating polluted soil.

  • Juranović Cindrić, Iva
    et al.
    Department of Chemistry, Faculty of Science, University of Zagreb, Zagreb, Croatia.
    Zeiner, Michaela
    Örebro universitet, Institutionen för naturvetenskap och teknik. School of Science and Technology, Örebro University, Örebro, Sweden; Division of Analytical Chemistry, Department of Chemistry, BOKU—University of Natural Resources and Life Sciences, Austria.
    Hlebec, Dora
    Department of Chemistry, Faculty of Science, University of Zagreb, Zagreb, Croatia.
    Mineral Composition of Elements in Walnuts and Walnut Oils2018Inngår i: International Journal of Environmental Research and Public Health, ISSN 1661-7827, E-ISSN 1660-4601, Vol. 15, nr 12, artikkel-id 2674Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Walnuts (Juglans nigra) are considered to be a functional food. In the present study, twenty one macro-, micro-, and trace elements (Al, As, B, Ba, Ca, Cd, Co, Cr, Cu, Fe, K, Li, Mg, Mn, Mo, Na, Ni, Pb, Se, Sr, and Zn) were selected to be determined in walnuts and walnut oils. The beneficial content of essential elements could be shown by the obtained results, the macro-elements Ca, K, Mg, and Na being present in nuts with 1062 mg/kg, 2771 mg/kg, 1426 mg/kg, and 42.3 mg/kg, respectively. Regarding micro- and trace elements, the following order (decreasing content) was found: Mn > Fe > Zn > B, Mo > Cu > Ni > Co > Al > Sr > Ba > Li > Pb > Se > Cr > As > Cd. Furthermore, the potentially toxic trace elements (As, Cd, Pb) determined were below the maximum allowed values in most of the investigated walnut samples. A comparison of oils and nuts revealed that the former contain lower concentrations of all elements analyzed except for Fe and Zn. This suggested the origin from contamination during oil processing. Fe influences the oil oxidation rate, thus its entry during production should be avoided.

  • Adolfsson, Daniel
    et al.
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Lowry, Stephanie
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Andreasson, Henrik
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Improving Localisation Accuracy using Submaps in warehouses2018Konferansepaper (Annet vitenskapelig)
    Abstract [en]

    This paper presents a method for localisation in hybrid metric-topological maps built using only local information that is, only measurements that were captured by the robot when it was in a nearby location. The motivation is that observations are typically range and viewpoint dependent and that a map a discrete map representation might not be able to explain the full structure within a voxel. The localisation system uses a method to select submap based on how frequently and where from each submap was updated. This allow the system to select the most descriptive submap, thereby improving the localisation and increasing performance by up to 40%.

  • Lundahl, Christian
    Örebro universitet, Institutionen för humaniora, utbildnings- och samhällsvetenskap.
    The ‘Beauty’ of PISA: the Politics of How PISA Scores Are Used to Represent Public Education2018Inngår i: AERA 2018 Annual Meeting, AERA , 2018Konferansepaper (Fagfellevurdert)
    Abstract [en]

    This paper concerns how expectations on public education are framed in policy discourse, and especially its pictorial representation of OECD’s PISA scores. Respectively 400 images in eight high scoring countries and eight low-performing countries are compared. Some clear differences appear. Strikingly PISA is mainly represented by statistical graphs. But we can also see that there is a tendency towards more pictures of children in PISA-successful countries. In low-performing there are instead a lot of pictures of concerned adults. One country, Sweden, that for long severed from a so-called PISA shock is then further analysed and the origin, as well as the reproduction of these images are traced. The overall purpose of the article is to contribute a new perspective on how representations of education can be gathered and analysed, by focusing on the politics of graphical representations of PISA scores. It is argued the there is an aesthetical dimension in the politics of PISA that frames our picture of education; that shows us what is important and what we should look at. There is also a political dimension in the aesthetics of PISA representations that moves our senses and emotions concerning education – i.e. how to feel about it.  

  • Widehammar, Cathrine
    et al.
    Örebro universitet, Institutionen för hälsovetenskaper. Department of Pediatrics, Faculty of Medicine and Health, Örebro University, Örebro, Sweden; University Health Care Research Center, Faculty of Medicine and Health, Örebro University, Örebro, Sweden.
    Eriksson, Karin
    Department of Pediatrics, Faculty of Medicine and Health, Örebro University, Örebro, Sweden.
    Hermansson, Liselotte
    Örebro universitet, Institutionen för hälsovetenskaper. 2University Health Care Research Center, Faculty of Medicine and Health, Örebro University, Örebro, Sweden; Department of Prosthetics and Orthotics, Faculty of Medicine and Health, Örebro University, Örebro, Sweden.
    Designing a new training method for advanced hand prostheses2018Inngår i: Book of Abstracts, Ljubljana, Slovenia: ISPO Slovenia , 2018, s. 66-66Konferansepaper (Fagfellevurdert)
    Abstract [en]

    INTRODUCTION: New prosthetic hands with advanced technology making it possible to perform many different grasps and positions are now available on the market. This new advanced technology is also difficult for users to control, and studies have shown that the new hand functions are not used to the extent expected (1).

    The Örebro Centre for Limb Deficiency and Arm Prostheses has a long experience of prosthetic fitting for both children and adults. About 80% of the adults report daily prosthesis use (2). Today, many prosthesis users find the advanced prosthetic hands interesting and wish to have one. However, when introducing a new prosthetic hand with questionable merits, the reasons for these results need to be considered. In light of our experience from fittings in Örebro, we decided that the training programs for the new hand models were not comprehensive enough, and there was a need for the development of a new method for training.

    AIMS: To design a training method for advanced hand prosthetic hands.

    METHODS: We performed a review of existing training programs for advanced myoelectric prosthetic hands and combined this with a structured training program, and a treatment philosophy with early fitting and regular follow up used in Örebro.

    RESULTS AND CONCLUSIONS: The training method comprises control training and performance of ADL’s. It follows a structured program based on the 14 steps described in the Skills Index Ranking Scale. The control training focuses on control of all different grasps available with the body in different positions: sitting, standing; with and without support of the arm. The ADL’s are chosen individually through a Canadian Occupational Performance Measure interview. The capacity to use different grasps and integrating the new prosthesis when performing ADL’s is evaluated through the Assessment of Capacity for Myoelectric Control. The method is based on regular support and feedback from an occupational therapist, with follow-ups weekly the first month and then monthly the following 3-6 months. The method has been used on patients with good results.

    CONCLUSION: A new method is designed to fit the new multifunctional prosthetic hands. The method can be applied upon prescription of advanced multifunctional prosthetic hands to enhance the functional use of the hands.

  • Marshall, Matilda
    Umeå universitet, Institutionen för kultur- och medievetenskaper.
    Hållbarhet till middag: En etnologisk studie om hur miljövänligt ätande praktiseras i vardagslivet2016Doktoravhandling, monografi (Annet vitenskapelig)
    Abstract [en]

    Sustainability has become a conspicuous term in the public and political debate, as well as in the landscapes of consumption. This study focuses on how people understand and practice sustainability through food in their everyday life. The aim is to describe and analyse sustainability as a collection of meaning-making practices by studying households that in some sense actively aim for an environmentally friendly and sustainable food consumption. The ethnographic fieldwork, mainly interviews and participant observations, included fifteen households in a municipality in northern Sweden during 2012-15. The dissertation centres around reoccurring themes: organic food, local food, food as culture and materiality, morality and distinction. Through these themes it became evident that the participants related sustainable food practices to more than environmental issues. Socioeconomic relations within the locality and the global world, as well as cultural norms, traditions and values related to food, were important aspects of a perceived sustainable society. Although occasionally seeming inconsistent and contradictory in their meaning-making of and commitment to practices revolving around ideals of (ecological) sustainability, the participants balanced multiple sustainabilities simultaneously. Besides the ecological aspect, they also wished for sustainable localities, household economy, social relations and personal wellbeing.

    Influenced by social practice theory the study pays attention to the competences, meanings and materials a practice is dependent on. The participants developed individual repertoires, or practice bundles, of sustainable food related practices that were meaningful in their everyday life. The development and expansion of such a bundle could be understood as a form of acquiring and maintaining green capital; a symbolic capital based upon shared green values which unite the possessors and distinguish them from those lacking such values. Green capital is expressed through green distinction, that is, using taste to differentiate between holders and non-holders of the symbolic capital. The participants separated themselves from both the large majority who did not yet understand or practise sustainability, and from “fanatics” who they perceived took sustainability in an extreme and unsound manner. A balanced approach to sustainability was favoured as the participants to a great extent valued a lifestyle adjustable to the preconditions of the contemporary Swedish society, such as social norms. The study shows how sustainability is constantly renegotiated and filled with new cultural meaning.

  • Wällstedt, Niklas
    Stockholm University, Stockholm, Sweden.
    Managing Multiplicity: On Control, Care and the Individual2015Doktoravhandling, med artikler (Annet vitenskapelig)
    Abstract [en]

    This is a thesis about managing multiplicity. It analyses how people working in municipalities are managing, controlling, and caring for the complex and contradictory world they live in. Building on more than 100 interviews and observations, the thesis examines the multiple realities of those who work in public sector organisations. By studying (1) the work of managers on different organisational levels, controllers, professionals responsible for the care of others and, to a lesser extent, politicians; (2) the management control systems that are used in the work, and (3) the ongoing debates and legislations directed towards the management of care practices, the thesis makes an effort to analyse how the realities of these individuals; those active in controlling and caring, are constructed.

    The thesis makes several contributions to the literatures on management control and public management. Where earlier studies are either based on a functionalist conception of management control and public management (in which performance measures and control systems are tools in the hands of managers, that enable them to control other practices), or focused on understanding how control contributes to the construction of reality (making reality ontologically coherent, and therefore controllable), the present thesis argues that management can be approached and analysed as a practice devoted to managing ontological multiplicity, rather than as an activity devoted to control other practices or making reality controllable.

    By using the concept of ontological politics, the thesis shows that control often fails to make reality controllable, which makes the practice of management reliant on alternative ways to manage. The alternative to control that is analysed in the thesis is care, and the thesis argues that care could be seen as a way to manage, rather than as something that should be controlled: care is complementary to control when it comes to management. The thesis explicates how management by care is done in relation to management by control, and how they may become resources for each other in managing the complex and contradictory public sector.

  • Uggla, Ylva
    et al.
    Örebro universitet, Institutionen för humaniora, utbildnings- och samhällsvetenskap.
    Boström, Magnus
    Örebro universitet, Institutionen för humaniora, utbildnings- och samhällsvetenskap.
    Ambivalence in environmental representation: A theoretical contribution2018Inngår i: Sociologisk forskning, ISSN 0038-0342, Vol. 55, nr 4, s. 447-465Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    In this paper, we examine the phenomenon of representation through the theoretical lens of ambivalence, concentrating on the people involved in representation: representatives. We argue that the theoretical concept of ambivalence can be helpful in analysing and understanding the various tensions environmental and other representatives encounter in their practice. Based on the concepts of “sociological ambivalence”, “ideological dilemma”, and “the organizational centaur”, as well as on insights from social studies of science and sustainability studies, the paper develops a typology of three potential sources of ambivalence: role conflicts, value conflicts, and conflicts between goals and means. In addition, the paper identifies various ways of coping with ambivalence, including the construction of meta-norms, organizational and network support, pragmatism, drawing boundaries for reasonable and acceptable actions, rule bending and discursive negotiation. The paper concludes that the concept of ambivalence adds crucial insights to the positions, practices, and challenges of environmental representatives and notes that ambivalence is not only a matter of tensions and conflicts but can be a source of reflexivity, learning, and agency.

  • Sundström, Andreas
    et al.
    Stockholm University, Stocholm, Sweden.
    Wällstedt, Niklas
    Stockholm University, Stocholm, Sweden.
    Intresserande samverkan: Från samsyn till framsyn – en studie inom Trafikverket2017Rapport (Fagfellevurdert)
    Abstract [sv]

    Denna rapport har som mål att studera hur Trafikverket praktiserar strategi tillsammans med andra intressenter och aktörer. Rapporten utgör delprojekt 3 i ett större treårigt projekt som genomförts inom Akademin för ekonomistyrning i staten (AES) vid Företagsekonomiska institutionen, Stockholms universitet. Projektet har finansierats av Trafikverket, inom ramen för FoI-portfölj nummer sex, Trafikverket – en modern myndighet. Tidigare delrapporter inom projektet har visat att det internt i organisationen finns flera bilder av hur strategin ska omsättas i praktiken, samt diskuterat vad som är viktigt i detta arbete. Då en stor del av Trafikverkets uppdrag genomförs av externa parter ingår det också i forskningsprojektet att studera vad som händer med Trafikverkets strategiska arbete i externa relationer. När flera organisationers strategier möts, påverkar och påverkas av varandra väcks frågor om hur strategier samverkar och hur sådan strategisk samverkan fungerar i praktiken. Målet med denna rapport är därför att utveckla kunskap om strategisk verksamhetsstyrning genom att koppla samman frågor om strategi med frågor om samverkan. Detta uppnås genom att studera hur samverkan fungerar i praktiken. Som grund för rapporten har tre olika exempel på praktiker studerats där Trafikverket möter andra aktörer i planering och genomförande av Trafikverkets arbete.

    För att utveckla förståelsen av samverkan antar studien ett samverkansperspektiv: studien tar utgångspunkt i praktiken, snarare än i de samverkande aktörerna. Till skillnad från tidigare samverkansstudiers fokus på enskilda organisationers nytta av att samverka, innebär detta samverkansperspektiv fördjupade frågor om hur olika aktörer med olika intressen verkar samman, och hur sådan samverkan fungerar i praktiken. För att kunna diskutera samverkan på ett konstruktivt sätt används tre teoretiska begrepp i rapporten: mångfald, intressering och löften. Med dessa begrepp som utgångspunkt inriktas analysen på att undersöka förutsättningar för samverkan. Utifrån analysen av samverkans förutsättningar presenteras i rapportens avslutande kapitel ett utvecklat förhållningssätt till samverkan: intresserande samverkan. 

  • Bagger, Anette
    et al.
    Umeå University, Umeå, Sweden.
    Norén, Eva
    Stockholm University, Stockholm, Sweden.
    Boistrup, Lisa
    Stockholm University, Stockholm, Sweden.
    Lundahl, Christian
    Örebro universitet, Institutionen för humaniora, utbildnings- och samhällsvetenskap.
    Digitalized national tests in mathematics: a way of increasing and securing equity?2019Inngår i: PROCEEDINGS OF THE TENTH INTERNATIONAL MATHEMATICS EDUCATION AND SOCIETY CONFERENCE: Hyderabad, India January 28th to February 2nd, 2019 / [ed] Jayasree Subramanian, Hyderabad, India, 2019Konferansepaper (Fagfellevurdert)
    Abstract [en]

    On one hand, the Swedish governing discourse on equity in the context of digitizing education portrays modernization, progress and democracy as a foundation in the equity work. On the other hand, in the context of digitized tests, equity is rather framed within a neoliberal logic while related to all individuals’ possibilities of choosing a ‘good life’, and to compete on equal terms. Not all disadvantaged groups are the target, though. It is mainly boys who are supposed be given better grades, and, in addition, students with disabilities who are supposed to (as far as possible) be able to have the opportunity to show their knowledge during the test. Language or socioeconomically diverse settings are not mentioned with regard to digitized national tests.

  • Biswas, Dipsikha
    et al.
    Dalhousie Med New Brunswick, St John, NB, Canada.
    Cowie, Andrew
    Dalhousie Med New Brunswick, St John, NB, Canada.
    Tozer, Kathleen
    Dalhousie Med New Brunswick, St John, NB, Canada.
    Perez, Lester J.
    Dalhousie Med New Brunswick, St John, NB, Canada.
    Trivedi, Purvi
    Dalhousie Med New Brunswick, St John, NB, Canada.
    Bartlett, Jordan J.
    Dalhousie Med New Brunswick, St John, NB, Canada.
    Duffley, Luke
    Univ New Brunswick, St John, NB, Canada.
    Dao, Khoi Thien
    Univ New Brunswick, St John, NB, Canada.
    Paramel Varghese, Geena
    Dalhousie Med New Brunswick, St John, NB, Canada..
    Aguiar, Christie
    St Johns Hosp, St John, NB, Canada.
    Yip, Alexandra M.
    St Johns Hosp, St John, NB, Canada.
    Shea, Jennifer
    St Johns Hosp, St John, NB, Canada.
    Brunt, Keith
    Dalhousie Med New Brunswick, St John, NB, Canada.
    Legare, Jean-Francois
    St Johns Hosp, St John, NB, Canada.
    Hassan, Ansar
    St Johns Hosp, St John, NB, Canada.
    Kienesberger, Petra
    Dalhousie Med New Brunswick, St John, NB, Canada.
    Pulinilkunnil, Thomas
    Dalhousie Med New Brunswick, St John, NB, Canada.
    Adverse Cardiometabolic Outcomes in Obese Patients Correlates Strongly with Defective Branched-Chain Amino Acid Catabolism2018Inngår i: Journal of Molecular and Cellular Cardiology, ISSN 0022-2828, E-ISSN 1095-8584, Vol. 124, s. 121-122Artikkel i tidsskrift (Annet vitenskapelig)
  • Karpaty, Patrik
    et al.
    Örebro universitet, Handelshögskolan vid Örebro Universitet.
    Tingvall, Patrik Gustavsson
    Stockholm School of Economics and Centre of Excellence for Science and Innovation Studies (CESIS).
    Offshoring of Services and Corruption: Do Firms Escape Corrupt Countries?2011Rapport (Annet vitenskapelig)
    Abstract [en]

    In this paper, we analyze how the offshoring of services by Swedish firms is affected by corruption in target economies. Taking stance from the gravity model of trade, we analyze how the choice of country, volume and composition of offshored services is affected by the presence of corruption in target economies. The results suggest that corruption is a deterrent for service offshoring. Firms avoid corrupt countries, and corruption reduces the amount of offshored services. In addition, the sensitivity to corruption is highest for poor countries, and large and internationalized firms are the ones that tend to be the most sensitive to corruption. Given the importance of large firms as international investors and subcontractors, this adds yet another argument for fighting corruption.

  • Frödén, Sara
    Lek utan könsbundna mönster2018Inngår i: Förskoletidningen, ISSN 0348-0364, Vol. 43, nr 2Artikkel i tidsskrift (Annet (populærvitenskap, debatt, mm))
    Abstract [sv]

    I denna populärvetenskapliga artikel diskuteras hur föreställningen om en könsseparerad lekvärld fortfarande lever kvar i förskolan och bidrar till att pedagoger har olika förväntningar på hur flickor och pojkar leker och med vad. I leken skapas, upprätthålls och utmanas olika könsbundna lekmönster och pedagoger behöver därför fråga sig vilka slags lekar som flickor och pojkar uppmuntras att leka.

  • Windahl, Charlotta
    Department of Management and Engineering, Linköping University, Linköping, Sweden.
    Integrated Solutions in the Capital Goods Sector: Exploring innovation, service and network perspectives2007Doktoravhandling, med artikler (Annet vitenskapelig)
    Abstract [en]

    With varying degrees of success, a number of firms in the capital goods sector are experimenting with different ‘integrated solutions’ initiatives. Integrated solutions include product innovations which enable increased process control that allows the optimisation of the customers’ processes, as well as business innovations which change the firms’ business models and customer approach. It is not always easy to develop and commercialise these new offerings, especially for firms that have traditionally focused on developing and selling products. Integrated solutions challenge these firms to shift the focus from physical products, spare parts and support services to emphasis on delivery of performance optimisation and productivity.

    This thesis is a compilation of five papers and five supporting chapters that discuss and analyse the challenges with developing and commercialising integrated solutions in the capital goods sector. The research builds on case studies of firms experimenting with integrated-solution offerings. The firms produce complex, expensive industrial machinery to customers in the process and manufacturing industries. The main case is based on a five-year, in-depth longitudinal study of Alfa Laval, and more specifically of the developments within the wastewater industry. Other case studies include ITT Flygt and Atlas Copco.

    The thesis shows that the development and commercialisation of integrated solutions represent a multifaceted, iterative and complex process for the firms under study, who need to combine product, service and business innovations, create new business structures, and create new relationships with customers and possible partners. Consequently, the development of integrated solutions is not confined to or explained by one theoretical field in this thesis, but is linked to innovation, service and network perspectives.

    The thesis also shows that the three activities of innovating, organising and building relationships are dependent on changing market structures, customer demands and business cycles. Therefore it becomes important to manage the coexistence of different types of offerings, such as products, services and integrated solutions.

  • Husu, Liisa
    et al.
    Örebro universitet, Institutionen för humaniora, utbildnings- och samhällsvetenskap.
    Callerstig, Anne-Charlott
    Örebro universitet, Institutionen för humaniora, utbildnings- och samhällsvetenskap.
    Riksbankens Jubileumsfonds beredningsprocesser ur ett jämställdhetsperspektiv2018Rapport (Annet vitenskapelig)
  • Disputas: 2019-03-08 13:15 Örebro universitet, Hörsalen, Musikhögskolan, Örebro
    Knezevic, David
    Örebro universitet, Handelshögskolan vid Örebro Universitet.
    The Treasurer's Guide to the Municipality: Essays on Sub-Sovereign Finance2019Doktoravhandling, med artikler (Annet vitenskapelig)
    Abstract [en]

    This thesis presents a comprehensive empirical analysis of the current state of Swedish sub-sovereign finance from multiple perspectives, starting from the local and moving to the national. Financial risks may occur in a long line of financial obligations and transactions. Thus, for understanding the full scope of financial risks one perspective is not sufficient. From a societal perspective the question of sub-sovereign debt management is important since mismanagement may lead to substantial risks which may impact the lives of citizens by a weakening of the Swedish public programs. Sub-sovereign debt is mainly funded by issuing financial securities in both national and foreign capital markets. Understanding the market perception regarding the risk profile of Swedish sub-sovereigns may be beneficial in improving the funding conditions of the sector and in turn reduce the cost of public investments. Financial markets are however not stand-alone entities and are heavily impacted by the policy decisions of public institutions. Thus, monetary policy plays an important role in affecting financial markets and consequently the funding conditions of Swedish sub-sovereigns. Given the contemporary approach to monetary policy this effect may be somewhat different compared to what it has been historically. There are however reasons to suspect that the national policy decisions are in large part driven by international occurrences and by foreign governments through international spillovers. Thus, for understanding the interlinked nature of financial markets a wider perspective is needed. These are some of the areas which are investigated in this thesis.

    Delarbeid
    1. Intertemporal diversification of sub-sovereign debt
    Åpne denne publikasjonen i ny fane eller vindu >>Intertemporal diversification of sub-sovereign debt
    2018 (engelsk)Inngår i: Empirical Economics, ISSN 0377-7332, E-ISSN 1435-8921Artikkel i tidsskrift (Fagfellevurdert) Epub ahead of print
    Abstract [en]

    This paper presents a comprehensive empirical analysis of the debt maturity structure of the Swedish municipal sector. The Swedish municipal debt portfolio is characterized by a short maturity structure and an asset-liability mismatch that poses potentially severe roll-over risk. The 2008–2009 financial crisis manifested as a liquidity shock to the sector that highlighted the dangers of short-term funding strategies in conjunction with low levels of intertemporal diversification. In this study we analyze to what extent this led to a change of intertemporal diversification. Based on a unique contract-level monthly data set of municipal loans issued by Kommuninvest of Sweden from January 1997 to June 2016, we construct and estimate a range of dispersion and moment measures to capture the change of various distributional characteristics of the maturity structure. These measures are used as dependent variables in fixed-effects models together with a number of control variables to estimate the effect of the debt-crisis liquidity shock. The main finding is that the crisis did affect the diversification, but not in a persistent way. A possible explanation is that the municipalities found that Kommuninvest through jointly guaranteed lending was able to function as a lender of last resort and thereby mitigates the roll-over risk. It is also found that fiscal and financial properties such as debt-to-tax base ratio, tax base volatility and per capita income are associated with the characteristics of the debt maturity structure of Swedish municipalities, as well as macroeconomic factors such as the term structure of interest rates.

    sted, utgiver, år, opplag, sider
    Berlin: Springer, 2018
    Emneord
    Short-term debt, Term structure, Liquidity risk, Roll-over risk, Asset-liability management, Debt maturity, Financial crisis
    HSV kategori
    Forskningsprogram
    Nationalekonomi
    Identifikatorer
    urn:nbn:se:oru:diva-69046 (URN)10.1007/s00181-018-1525-5 (DOI)
    Konferanse
    The 3rd International Conference in Applied Macro and Empirical Finance, AMEF 2017, Thessaloniki, Greece, April 21-22, 2017; The 2017 Swedish Graduate Program in Economics (SWEGPEC) annual workshop in Stockholm, Stockholm, Sweden, November 29-30, 2017
    Prosjekter
    Local Government Finance Data Analysis - LOGFIN
    Merknad

    This paper has benefited from comments by two anonymous referees, Martin Andersson, Pär Österholm, Lars Hultkrantz, Martin Nordström, Niclas Krüger, Mattias Bokenblom, Erik Törnblom and seminar participants at Örebro University, the 3rd International Conference in Applied Macro and Empirical Finance in Thessaloniki and the 2017 Swedish Graduate Program in Economics (SWEGPEC) annual workshop in Stockholm.

    Tilgjengelig fra: 2018-09-25 Laget: 2018-09-25 Sist oppdatert: 2019-02-13bibliografisk kontrollert
    2. A Guarantee – Does the Obligee Agree?: A Risk Premium Decomposition of Sub-Sovereign Bond Spreads
    Åpne denne publikasjonen i ny fane eller vindu >>A Guarantee – Does the Obligee Agree?: A Risk Premium Decomposition of Sub-Sovereign Bond Spreads
    (engelsk)Manuskript (preprint) (Annet vitenskapelig)
    HSV kategori
    Identifikatorer
    urn:nbn:se:oru:diva-72416 (URN)
    Tilgjengelig fra: 2019-02-13 Laget: 2019-02-13 Sist oppdatert: 2019-02-13bibliografisk kontrollert
    3. The Relation between Municipal and Government Bond Yields in an Era of Unconventional Monetary Policy
    Åpne denne publikasjonen i ny fane eller vindu >>The Relation between Municipal and Government Bond Yields in an Era of Unconventional Monetary Policy
    (engelsk)Manuskript (preprint) (Annet vitenskapelig)
    HSV kategori
    Identifikatorer
    urn:nbn:se:oru:diva-72417 (URN)
    Tilgjengelig fra: 2019-02-13 Laget: 2019-02-13 Sist oppdatert: 2019-02-13bibliografisk kontrollert
    4. A Reasonable Assumption?: The Small Open Economy and Block Exogeneity
    Åpne denne publikasjonen i ny fane eller vindu >>A Reasonable Assumption?: The Small Open Economy and Block Exogeneity
    (engelsk)Manuskript (preprint) (Annet vitenskapelig)
    HSV kategori
    Identifikatorer
    urn:nbn:se:oru:diva-72418 (URN)
    Tilgjengelig fra: 2019-02-13 Laget: 2019-02-13 Sist oppdatert: 2019-02-13bibliografisk kontrollert
  • Viik, Kadi
    Maskuliinsuseuurija Jeff Hearn: mehe väärtus pole ühiskonnas sugugi ühemõtteline2018Annet (Annet (populærvitenskap, debatt, mm))
  • Hall, Matthew
    et al.
    Ulster University, UK.
    Hearn, Jeff
    Örebro universitet, Institutionen för humaniora, utbildnings- och samhällsvetenskap. University of Huddersfield, UK; Hanken School of Economics, Finland; South Africa.
    Written submission from Dr Matthew Hall and Professor Jeff Hearn (SPP0100)2018Annet (Annet (populærvitenskap, debatt, mm))