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  • Sar, Suchandra
    et al.
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Minerals and Metallurgical Engineering.
    Sundqvist Ökvist, Lena
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Minerals and Metallurgical Engineering.
    Sparrman, Tobias
    Umeå University.
    Engström, Fredrik
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering. Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Minerals and Metallurgical Engineering. Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering. Luleå University of Technology, Department of Engineering Sciences and Mathematics, Fluid and Experimental Mechanics.
    Samuelsson, Caisa
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Minerals and Metallurgical Engineering. Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering.
    Characterization of Double Leached Waelz Oxide for Identification of Fluoirde Mineral2019In: Metals, ISSN 2075-4701, Vol. 9, no 3, article id 361Article in journal (Refereed)
    Abstract [en]

    Double leached Waelz oxide (DLWO), with 76% zinc, is a secondary zinc containing raw materials obtained by the treatment of electric arc furnace dust. The content of fluoride in DLWO is still too high for direct leaching, as fluoride has a detrimental effect on electrowinning for zinc production. Knowledge of the characteristics of DLWO, and especially on how a fluoride mineral might exist, can contribute to further improvement of the selective leaching for the removal of fluoride. In this study, DLWO was characterized using analytical techniques, such as inductively coupled plasma-optical emission spectroscopy (ICP-OES), 19F liquid-state nuclear magnetic resonance (19F LS NMR), X-ray powder diffraction analysis (XRD), scanning electron microscopy coupled with energy dispersive spectroscopy (SEM-EDS) and 19F solid-state nuclear magnetic resonance (19F SS NMR). This study showed that DLWO mainly consisted of zincite (ZnO), cerussite (PbCO3) and a spinel containing zinc, iron and manganese. The fluoride mineral identified was calcium fluoride (CaF2). In SEM analysis, fluorine was found in larger grains together with calcium and oxygen, which was possibly calcium carbonate.

  • Public defence: 2019-05-10 15:00 D3, Stockholm
    Dastory, Linda
    KTH, School of Industrial Engineering and Management (ITM), Industrial Economics and Management (Dept.), Economics.
    Innovation, Technical Change and the Labour Market2019Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    This doctoral thesis consist of four papers. The two first papers are related to financialeconomics and the other two to labour economics. All four papers deal with microeconomicsanalysis of individuals and firms. Where the first two are from a firms perspectiveand the two second once are from an individual perspective. Moreover, all four papersunderline the importance of innovation for productivity,competitiveness and economicgrowth.In the first essay we use German Community Innovation Survey to identify financiallyconstrained firms. Contrary to previous studies we find that the relationship betweenfinancial constraints and firm size is inverted u-shaped and that it is the group ofmedium sized firms which has the largest funding gaps. This is explained by the factthat these firms have high innovation capabilities but at the same time face high cost ofcapital. Furthermore, we test if financial constraints have an impact on firm productivitygrowth. We find negative effects from funding gaps on productivity, but only for investmentin tangible capital and not for innovation investments.The second essay investigates whether there has been a change in the productivityand funding mix of innovative SMEs post stricter bank regulations. Our result showsthat the likelihood of using bank loans as a funding source has not changed for innovationinvestments nor for tangible investments after stricter capital regulations have beenannounced. On the other hand, sources such as subsidies have increased due to regulatoryprograms that have been implemented in the aftermath of the recent financial crisis.Furthermore, SMEs productivity has not changed post stricter bank regulations. Overall,the impact from different sources of funding on productivity is rather limited.The third essay explores firm formation by migrants with a STEM background. Theresult shows that native born STEM workers have a higher probability to form firmsrelative to migrants. Further categorization of migrants shows that refugees are morelikely to become entrepreneurs than EU-labour migrants. Overall, entrepreneurial migrantshave equal or higher predicted income in comparison to native born STEM entrepreneurs.The fourth essay analysis wage effects from changing work tasks using a tasked-basedapproach where workers are mapped in a two dimensional model classified by their cognitiveand routine task content. The result shows clear signs of wage polarization. switchfrom routine and manual tasks to non routine cognitive task yields an average wage premiumof about 2-6%. More importantly, while the gap was 1-5% in the beginning of theperiod, it increased to 10-13% at the end of the period. The result suggest that adaptingnew production technology and innovations to complement analytical skills has a higherand increasing marginal productivity compared to technologies aimed to replace or complementroutinized and manual work tasks. The period of this study is associated withseveral so-called breakthrough technologies such as, computerization, robotization, digitalizationand the introduction of IT technology.

  • Szabó, Mátyás
    The Nordic Museum.
    Den nya konsumenten beträder scenen1991In: 90tal: visioner och vägval, Stockholm: Nordiska museets förlag, 1991, p. 130-154Chapter in book (Other academic)
  • Simaeva, I.N.
    et al.
    Immanuel Kant Baltic Federal University, Kaliningrad.
    Budarina, Anna O.
    Immanuel Kant Baltic Federal University, Kaliningrad.
    Sundh, Stellan
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Educational Sciences, Department of Education.
    Cостояние и привлекательность инклюзивного и специального образования в России и странах Балтии2019In: Baltic Region, ISSN 2079-8555, Vol. 11, no 1, p. 76-91Article in journal (Refereed)
    Abstract [en]

    In this study, we examine the current state and prospects of inclusive education for learners with special needs and disabilities in the countries of the Baltic region (Poland, Sweden, Germany, Denmark, Latvia, Lithuania, Estonia, Norway, and Russia). We present a SWOT analysis of the development of inclusive education in different countries and analyse its strengths and weaknesses, risks, threats, and challenges from a political, economic, and technological perspective. In our analysis, we dissociate the issue of inclusive education from the problem of teaching learners with disabilities and examine the political, economic, social, and technological aspects of the environment that affect the educational situation of learners with disabilities. We consider inclusive education in the context of the documents of the Euro­pean Agency for Special Needs and Inclusive Education — an active educational institution that facilitates the preparation and adaptation of all learners to life in complex multicultural and integrated societies through rights, freedom, tolerance, and non-discrimination of per­sons with disabilities. Our analysis of inclusive education trends relies on the assessment of the goals and objectives, accessibility, and socio-cultural and economic feasibility of inclu­sive educational systems. We stress political, socio-cultural, and technological differences in practices, dynamics, and prospects for inclusive education in the Baltic region countries and Russia.

  • Public defence: 2019-05-08 09:00 TLS, Carolina Rediviva Library, Uppsala
    Ayyalasomayajula, Kalyan Ram
    Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Division of Visual Information and Interaction. Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Computerized Image Analysis and Human-Computer Interaction.
    Learning based segmentation and generation methods for handwritten document images2019Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    Computerized analysis of handwritten documents is an active research area in image analysis and computer vision. The goal is to create tools that can be available for use at university libraries and for researchers in the humanities. Working with large collections of handwritten documents is very time consuming and many old books and letters remain unread for centuries. Efficient computerized methods could help researchers in history, philology and computer linguistics to cost-effectively conduct a whole new type of research based on large collections of documents. The thesis makes a contribution to this area through the development of methods based on machine learning. The passage of time degrades historical documents. Humidity, stains, heat, mold and natural aging of the materials for hundreds of years make the documents increasingly difficult to interpret. The first half of the dissertation is therefore focused on cleaning the visual information in these documents by image segmentation methods based on energy minimization and machine learning. However, machine learning algorithms learn by imitating what is expected of them. One prerequisite for these methods to work is that ground truth is available. This causes a problem for historical documents because there is a shortage of experts who can help to interpret and interpret them. The second part of the thesis is therefore about automatically creating synthetic documents that are similar to handwritten historical documents. Because they are generated from a known text, they have a given facet. The visual content of the generated historical documents includes variation in the writing style and also imitates degradation factors to make the images realistic. When machine learning is trained on synthetic images of handwritten text, with a known facet, in many cases they can even give an even better result for real historical documents.

  • Lindberg, Jens
    et al.
    Umeå University, Faculty of Social Sciences, Department of Social Work. Umeå University, Faculty of Social Sciences, Centre for Demographic and Ageing Research (CEDAR).
    Lundgren, Anna Sofia
    Umeå University, Faculty of Arts, Department of culture and media studies. Umeå University, Faculty of Social Sciences, Centre for Demographic and Ageing Research (CEDAR).
    Positioning the ageing subject: Articulations of choice in Swedish and UK health and social care2019In: Policy Studies, ISSN 0144-2872, E-ISSN 1470-1006, p. 1-19Article in journal (Refereed)
    Abstract [en]

    What happens when similar measures are being introduced in different national contexts? This article studies the ways in which patient choice has been articulated in public and official reports on health care in the two contexts of Sweden and the UK, whose welfare systems are typically comprehended as different. Specific interest is directed towards the construction of patient positions, and policy documents are analyzed using discourse theory. The results show many similarities between the national contexts; choice is primarily articulated with individuality, autonomy, consumption, and responsibility, as well as with support from state agencies, and patient choice is relentlessly normalized as the way forward. But there are also important differences that reveal that the presuppositions differ, for example, when pinpointing the stakeholders of patient choice reforms and how the different policies work to take the well-known edges off of patient choice ideology.

  • Adjeiwaah, Mary
    et al.
    Umeå University, Faculty of Medicine, Department of Radiation Sciences.
    Bylund, Mikael
    Umeå University, Faculty of Medicine, Department of Radiation Sciences.
    Lundman, Josef A.
    Umeå University, Faculty of Medicine, Department of Radiation Sciences.
    Söderström, Karin
    Umeå University, Faculty of Medicine, Department of Radiation Sciences.
    Zackrisson, Björn
    Umeå University, Faculty of Medicine, Department of Radiation Sciences.
    Jonsson, Joakim H.
    Umeå University, Faculty of Medicine, Department of Radiation Sciences.
    Garpebring, Anders
    Umeå University, Faculty of Medicine, Department of Radiation Sciences.
    Nyholm, Tufve
    Umeå University, Faculty of Medicine, Department of Radiation Sciences.
    Dosimetric Impact of MRI Distortions: A Study on Head and Neck Cancers2019In: International Journal of Radiation Oncology, Biology, Physics, ISSN 0360-3016, E-ISSN 1879-355X, Vol. 103, no 4, p. 994-1003Article in journal (Refereed)
    Abstract [en]

    Purpose: To evaluate the effect of magnetic resonance (MR) imaging (MRI) geometric distortions on head and neck radiation therapy treatment planning (RTP) for an MRI-only RTP. We also assessed the potential benefits of patient-specific shimming to reduce the magnitude of MR distortions for a 3-T scanner.

    Methods and Materials: Using an in-house Matlab algorithm, shimming within entire imaging volumes and user-defined regions of interest were simulated. We deformed 21 patient computed tomography (CT) images with MR distortion fields (gradient nonlinearity and patient-induced susceptibility effects) to create distorted CT (dCT) images using bandwidths of 122 and 488 Hz/mm at 3 T. Field parameters from volumetric modulated arc therapy plans initially optimized on dCT data sets were transferred to CT data to compute a new plan. Both plans were compared to determine the impact of distortions on dose distributions.

    Results: Shimming across entire patient volumes decreased the percentage of voxels with distortions of more than 2 mm from 15.4% to 2.0%. Using the user-defined region of interest (ROI) shimming strategy, (here the Planning target volume (PTV) was the chosen ROI volume) led to increased geometric for volumes outside the PTV, as such voxels within the spinal cord with geometric shifts above 2 mm increased from 11.5% to 32.3%. The worst phantom-measured residual system distortions after 3-dimensional gradient nonlinearity correction within a radial distance of 200 mm from the isocenter was 2.17 mm. For all patients, voxels with distortion shifts of more than 2 mm resulting from patient-induced susceptibility effects were 15.4% and 0.0% using bandwidths of 122 Hz/mm and 488 Hz/mm at 3 T. Dose differences between dCT and CT treatment plans in D-50 at the planning target volume were 0.4% +/- 0.6% and 0.3% +/- 0.5% at 122 and 488 Hz/mm, respectively.

    Conclusions: The overall effect of MRI geometric distortions on data used for RTP was minimal. Shimming over entire imaging volumes decreased distortions, but user-defined subvolume shimming introduced significant errors in nearby organs and should probably be avoided.

  • Lewin, Leif
    De politiska partiernas uppgång och fall1991In: 90tal: visioner och vägval, Stockholm: Nordiska museets förlag, 1991, p. 199-210Chapter in book (Other academic)
  • Löwnertz, Susanne
    Århundradets skattereform1991In: 90tal: visioner och vägval, Stockholm: Nordiska museets förlag, 1991, p. 183-198Chapter in book (Other academic)
  • Public defence: 2019-05-09 10:00 Kollegiesalen, Stockholm
    Sophonrat, Nanta
    KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering.
    Pyrolysis of mixed plastics and paper to produce fuels and other chemicals2019Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    As the world population and economy grow, higher consumption results in higher waste packaging, plastics and paper residues. Pyrolysis offers a way to recover fuels and other chemicals from this waste fraction. By applying heat to these materials in the absence of oxygen, pyrolysis process can convert these feedstocks into more valuable products in the forms of gas, liquid and char.

    One important issue in the pyrolysis process which requires an investigation is the interactions between the feedstocks which consist of cellulose as the main component of paper and different types of plastics. Regarding this topic, 3 subtopics were investigated which are: the effect of mixing methods on the co-pyrolysis products, the interactions between the plastics and cellulose, and the formation of H, OH and water during cellulose pyrolysis. All these experimental investigations were based on microscale pyrolysis experiments using Py-GC/MS technique.

    In the first work, polyethylene and cellulose were mixed by melting and by putting side-by-side. It was found that some interactions occurred during co-pyrolysis of these materials which slightly altered the yields of some anhydrosugars, aldehydes and ketones when the two feedstocks were mixed together by melting. Nevertheless, the main pyrolysis products from each feedstock were not affected. 

    In the second study, the investigation continues on the interactions between different types of plastics (PE, PP, PS, PET) and cellulose. By using Py-GC×GC/MS, a good separation of the mixed pyrolysis products could be achieved, thus assisting the analysis. It was found that although the main pyrolysis products from each feedstock were not affected by the co-pyrolysis, small interactions occurred such that the interactions between different plastics were more pronounced than the interactions between plastics and cellulose. Nevertheless, some hydrogen transfer reactions occurred when PS was co-pyrolyzed with cellulose. However, the source of hydrogen was not clear.

    Therefore, the investigation on the formation of H and OH radicals during cellulose pyrolysis was performed. This work combined first-principle calculations with experimental investigations. The author of the thesis was responsible for the experimental part. It was found from the first-principle calculations that it is energetically more favorable for the generation of a pair of H and OH radicals with subsequence formation of water than to generate a single radical because the formation of a double bond on the resulting cellulose helps stabilize the structure. With Gibbs free energy calculations, it was predicted that the water would be released at 280 °C. This agree well with the experimental findings from multistep pyrolysis of cellulose in Py-GC/MS which showed that water was generated at two different temperature ranges with the first peak around 280 °C.

    As the interactions between the feedstocks during co-pyrolysis do not much improve the liquid products’ properties, and the nature of the products produced from plastics and paper pyrolysis are significantly different; it might be more beneficial to separate the pyrolysis products from the two feedstocks. Moreover, the hydrocarbons produced from plastics pyrolysis and the oxygenated products from paper pyrolysis require different upgradation methods. Stepwise pyrolysis was then proposed to produce and collect these two products separately. With simulated feedstock mixtures (PE, PS, cellulose) and real waste fractions which are paper rejects, it was successfully demonstrated that the stepwise pyrolysis with a temperature of the first step of 300-350 °C and a temperature of the second step of 500 °C could be used to produce two products streams as previously described. However, an optimization of the process and further investigations on product properties and upgradation are still required.

    As a continuation on the investigation of the stepwise pyrolysis, an upgradation of the products from the first pyrolysis step was studied. When PVC plastic is present in the feedstock, dehydrochlorination of PVC occurs in the temperature range of the first pyrolysis step together with the pyrolysis of cellulose. Calcium oxide (CaO) was then tested for the simultaneous adsorption of HCl and reforming of cellulose pyrolysis products. The experiments were performed in a two-stage reactor system which was a pyrolysis reactor connected in series to a catalytic reactor containing CaO. It was found that the catalytic temperature should be between 300-350 °C because the desorption of HCl occurred when the temperature was higher than 400 °C. This was partly due to a reaction between water and CaCl2 which caused the desorption of HCl.

    From all the studies, stepwise pyrolysis has a great potential to produce fuels and other chemicals from mixed plastics and paper. Further investigations are needed to develop, evaluate and realize this promising process.

  • Strombäck, Lena
    et al.
    SMHI, Research Department, Hydrology.
    Foster, Kean
    SMHI, Research Department, Hydrology.
    Rosberg, Jörgen
    SMHI, Research Department, Hydrology.
    Data and Provenance Management for Climate Effect Studies. Adaption of Climate Data with Distribution Based Scaling for Hydrological Simulations.2013In: Proceedings of DBKDA 2013, Seville, Spain., 2013Conference paper (Refereed)
  • Wintzell, Inga
    The Nordic Museum.
    Då och nu i jeansmodet1988In: Kläder, Stockholm: Nordiska museets förlag, 1988, p. 228-234Chapter in book (Other academic)
  • Popescu, Cosmin
    et al.
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering. Northern Research Institute - NORUT, Narvik, Norway.
    Täljsten, Björn
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering.
    Blanksvärd, Thomas
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering.
    Elfgren, Lennart
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering.
    3D reconstruction of existing concrete bridges using optical methods2019In: Structure and Infrastructure Engineering, ISSN 1573-2479, E-ISSN 1744-8980Article in journal (Refereed)
    Abstract [en]

    Routine bridge inspections usually consist of visual observations. These inspections are time-consum-ing and subjective. There is a need to identify new inspection techniques for infrastructure that reducetraffic disturbance, and improve the efficiency and reliability of the acquired data. This study comparedthe performance of three different imaging technologies for the three-dimensional (3D) geometricmodeling of existing structures: terrestrial laser scanning, close-range photogrammetry, and infraredscanning. Each technology was used to assess six existing concrete railway bridges. The technologieswere compared in terms of geometric deviations, visualization capabilities, the level of the inspector’sexperience, and degree of automation. The results suggest that all methods investigated can be usedto create 3D models, however, with different level of completeness. Measurements such as spanlength, deck widths, etc. can be extracted with good accuracy. Although promising, a full off-siteinspection is currently not feasible as some areas of the bridges were difficult to capture mainly dueto restricted access and narrow spaces. Measurements based on terrestrial laser scanning were closerto the reality compared to photogrammetry and infrared scanning. The study indicates the no specialtraining is needed for photogrammetry and infrared scanning to generate a 3D geometric model.

  • Alexandersson, Maria
    et al.
    Wang, Eugen Yuhui
    Eriksson, Staffan
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Section of Physiotherapy. Centre for Clinical Research Sörmland, Uppsala University, Kungsgatan 41, 631 88 Eskilstuna, Sweden; Department of Neuroscience, Physiotherapy, Uppsala University, Box 593, 751 24 Uppsala, Sweden.
    A small difference in recovery between total knee arthroplasty with and without tourniquet use the first 3 months after surgery: a randomized controlled study2019In: Knee Surgery, Sports Traumatology, Arthroscopy, ISSN 0942-2056, E-ISSN 1433-7347, Vol. 27, no 4, p. 1035-1042Article in journal (Refereed)
    Abstract [en]

    Purpose: When a tourniquet is used during surgery on the extremities, the pressure applied to the muscles, nerves and blood vessels can cause neuromuscular damage that contributes to postoperative weakness. The hypothesis was that the rehabilitation-related results would be improved if total knee arthroplasty (TKA) is performed without the use of a tourniquet.

    Methods: 81 patients with osteoarthritis of the knee who underwent TKA surgery were randomized to surgery with or without tourniquet. Active flexion and extension of the knee, pain by visual analog scale (VAS), swelling by knee circumference, quadriceps function by straight leg raise, and timed up and go (TUG) test results were measured before and up to 3 months after surgery.

    Results: ANCOVA revealed no between-groups effect for flexion of the knee at day 3 postsurgery. Compared with the tourniquet group, the nontourniquet group experienced elevated pain at 24 h, with a mean difference of 16.6 mm, p = 0.005. The effect on mobility (TUG test) at 3 months was better in the nontourniquet group, with a mean difference of -1.1 s, p = 0.029.

    Conclusions: The hypothesis that the rehabilitation-related results would be improved without a tourniquet is not supported by the results. When the results in this study for surgery performed with and without tourniquet are compared, no clear benefit for either procedure was observed, as the more pain exhibited by the nontourniquet group was only evident for a short period and the improved mobility in this group was not at a clinically relevant level.

    Level of evidence: Inconsistent results, Level II.

  • Roos Björklund, Ingrid
    The Nordic Museum.
    Dockor i modets tjänst1988In: Kläder, Stockholm: Nordiska museets förlag, 1988, p. 218-227Chapter in book (Other academic)
  • Irazoki, Oihane
    et al.
    Umeå University, Faculty of Medicine, Molecular Infection Medicine Sweden (MIMS). Umeå University, Faculty of Medicine, Department of Molecular Biology (Faculty of Medicine).
    Hernandez, Sara B.
    Umeå University, Faculty of Medicine, Department of Molecular Biology (Faculty of Medicine). Umeå University, Faculty of Medicine, Molecular Infection Medicine Sweden (MIMS).
    Cava, Felipe
    Umeå University, Faculty of Medicine, Molecular Infection Medicine Sweden (MIMS). Umeå University, Faculty of Medicine, Department of Molecular Biology (Faculty of Medicine).
    Peptidoglycan Muropeptides: Release, Perception, and Functions as Signaling Molecules2019In: Frontiers in Microbiology, ISSN 1664-302X, E-ISSN 1664-302X, Vol. 10, article id 500Article, review/survey (Refereed)
    Abstract [en]

    Peptidoglycan (PG) is an essential molecule for the survival of bacteria, and thus, its biosynthesis and remodeling have always been in the spotlight when it comes to the development of antibiotics. The peptidoglycan polymer provides a protective function in bacteria, but at the same time is continuously subjected to editing activities that in some cases lead to the release of peptidoglycan fragments (i.e., muropeptides) to the environment. Several soluble muropeptides have been reported to work as signaling molecules. In this review, we summarize the mechanisms involved in muropeptide release (PG breakdown and PG recycling) and describe the known PG-receptor proteins responsible for PG sensing. Furthermore, we overview the role of muropeptides as signaling molecules, focusing on the microbial responses and their functions in the host beyond their immunostimulatory activity.

  • Hansen, Julie
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Social Sciences, Institute for Russian and Eurasian Studies. Department of Modern Languages.
    Living through Literature: Essays in Memory of Omry Ronen2019Collection (editor) (Refereed)
    Abstract [en]

    Omry Ronen (1937–2012) was a world-renowned scholar of Russian literature and an inspiring teacher. His most influential work focused on historical and descriptive poetics, metrics, structural analysis of verse and prose, Russian Modernist poetry, and particularly the work of Osip Mandelstam. He also studied Alexander Pushkin’s poetics, subtextual interpretive strategies, the poetry of the OBERIU, the work of Vladimir Nabokov and the problems of literary multilingualism, the picaresque in Russian literature, popular fiction and science fiction, children’s literature, intersemiotic transposition in the arts, literature and cinema, the history of Russian formalism and structuralism, twentieth-century Ukrainian poetry, and the history and theory of Russian Symbolism, Acmeism, and Futurism. 

    This volume honors Omry Ronen’s memory and scholarly legacy with ten essays by his former students Karen Evans-Romaine, Sara Feldman, Susanne Fusso, Julie Hansen, Kelly E. Miller, Nancy Pollak, Irena Ronen, Stephanie Sandler, Timothy D. Sergay, and Michael Wachtel. The volume also contains an introduction by Vyacheslav Vsevolodovich Ivanov. 

  • Amorim, Jorge Humberto
    et al.
    SMHI, Research Department, Air quality.
    Asker, Christian
    SMHI, Research Department, Air quality.
    Belusic, Danijel
    SMHI, Research Department, Climate research - Rossby Centre.
    Carvalho, Ana
    SMHI, Research Department, Air quality.
    Engardt, Magnuz
    SMHI, Research Department, Air quality.
    Gidhagen, Lars
    SMHI, Research Department, Air quality.
    Hundecha, Yeshewatesfa
    SMHI, Research Department, Hydrology.
    Körnich, Heiner
    SMHI, Research Department, Meteorology.
    Lind, Petter
    SMHI, Research Department, Climate research - Rossby Centre.
    Olsson, Esbjörn
    SMHI, Research Department, Meteorology.
    Olsson, Jonas
    SMHI, Research Department, Hydrology.
    Segersson, David
    SMHI, Research Department, Air quality.
    Strombäck, Lena
    SMHI, Research Department, Hydrology.
    Joe, Paul
    Baklanov, Alexander
    Integrated Urban Services for European cities: the Stockholm case2018In: WMO Bulletin, ISSN 0042-9767, Vol. 67, no 2, p. 33-40Article in journal (Refereed)
  • Roos Björklund, Ingrid
    The Nordic Museum.
    Modet i dockornas värld1988In: Kläder, Stockholm: Nordiska museets förlag, 1988, p. 204-217Chapter in book (Other academic)
  • Larm, Peter
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland. Swedish Council Informat Alcohol & Other Drugs CA, Dept Anal & Method, Klara Norra Kyrkogata 34, SE-10725 Stockholm, Sweden;Karolinska Inst, Dept Clin Neurosci, Solna, Sweden.
    Raninen, Jonas
    Swedish Council Informat Alcohol & Other Drugs CA, Dept Anal & Method, Klara Norra Kyrkogata 34, SE-10725 Stockholm, Sweden;Karolinska Inst, Dept Clin Neurosci, Solna, Sweden.
    Åslund, Cecilia
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.
    Svensson, Johan
    Swedish Council Informat Alcohol & Other Drugs CA, Dept Anal & Method, Klara Norra Kyrkogata 34, SE-10725 Stockholm, Sweden;Karolinska Inst, Dept Clin Neurosci, Solna, Sweden.
    Nilsson, Kent W.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.
    The increased trend of non-drinking alcohol among adolescents: what role do internet activities have?2019In: European Journal of Public Health, ISSN 1101-1262, E-ISSN 1464-360X, Vol. 29, no 1, p. 27-32Article in journal (Refereed)
    Abstract [en]

    Background: Recently, an increased trend toward non-drinking among adolescents has been observed in several countries. The aim of the present study is to evaluate a common suggestion in literature, that adolescents do not drink alcohol because they spend more time on the internet, monitored at home, by examining associations between internet activities (social media/chatting and computer gaming) and non-drinking.

    Methods: A health questionnaire was distributed to all 9th graders (1516 years) in a mid-sized Swedish county in 2008, 2010 and 2012. In total, 7089 students returned the questionnaire.

    Results: In contrast to the suggestion, no association was found between total time spent on computers and non-drinking. Social media/chatting was robustly associated with a decreased probability of non-drinking across the three survey years. On the other hand, computer gaming during weekends only (OR = 1.74, CI = 1.132.69) or both on weekdays and weekends increased the probability of non-drinking (OR = 1.82, CI = 1.312.54) in 2012 only. However, neither social media/chatting nor computer gaming was associated with the increased trend of non-drinking from 2008 to 2012.

    Conclusions: Internet activities were in general not associated with non-drinking among adolescents aged 1516 years in Sweden. Although, a weak positive association between computer gaming and non-drinking was found in 2012, this effect benefited the vast majority of the boys. The larger alcohol use among those with extensive social media use/chatting may indicate that these online platforms are arenas where adolescents are exposed for positive alcohol preferences and alcohol advertising without parental supervision.

  • Wintzell, Inga
    The Nordic Museum.
    Modelejon och andra herrar1988In: Kläder, Stockholm: Nordiska museets förlag, 1988, p. 176-203Chapter in book (Other academic)
  • de Waard, Anne-Karien M.
    et al.
    Univ Utrecht, Univ Med Ctr Utrecht, Julius Ctr, Dept Gen Practice, Utrecht, Netherlands.
    Hollander, Monika
    Univ Utrecht, Univ Med Ctr Utrecht, Julius Ctr, Dept Gen Practice, Utrecht, Netherlands.
    Korevaar, Joke C.
    Nivel Netherlands Inst Hlth Serv Res, Utrecht, Netherlands.
    Nielen, Mark M. J.
    Nivel Netherlands Inst Hlth Serv Res, Utrecht, Netherlands.
    Carlsson, Axel C.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Cardiovascular epidemiology. Karolinska Inst, Dept Neurobiol Care Sci & Soc NVS, Div Family Med & Primary Care, Stockholm, Sweden.
    Lionis, Christos
    Univ Crete, Sch Med, Clin Social & Family Med, Iraklion, Greece.
    Seifert, Bohumil
    Charles Univ Prague, Fac Med 1, Inst Gen Practice, Prague, Czech Republic.
    Thilsing, Trine
    Univ Southern Denmark, Dept Publ Hlth, Res Unit Gen Practice, Odense C, Denmark.
    de Wit, Niek J.
    Univ Utrecht, Univ Med Ctr Utrecht, Julius Ctr, Dept Gen Practice, Utrecht, Netherlands.
    Schellevis, Francois G.
    Vrije Univ Amsterdam Med Ctr, Amsterdam Publ Hlth Res Inst, Dept Gen Practice & Elderly Care Med, Amsterdam, Netherlands.
    Angelaki, Agapi
    Univ Crete, Sch Med, Clin Social & Family Med, Iraklion, Greece.
    Holzmann, Martin J.
    Karolinska Inst, Dept Med, Stockholm, Sweden.
    Kral, N.
    Charles Univ Prague, Fac Med 1, Inst Gen Practice, Prague, Czech Republic.
    Sondergaard, Jens
    Sonderlund, Anders L.
    Univ Southern Denmark, Dept Publ Hlth, Res Unit Gen Practice, Odense C, Denmark.
    Wandell, P.
    Karolinska Inst, Dept Neurobiol Care Sci & Soc NVS, Div Family Med & Primary Care, Stockholm, Sweden.
    Selective prevention of cardiometabolic diseases: activities and attitudes of general practitioners across Europe2019In: European Journal of Public Health, ISSN 1101-1262, E-ISSN 1464-360X, Vol. 29, no 1, p. 88-93Article in journal (Refereed)
    Abstract [en]

    Background: Cardiometabolic diseases (CMDs) are the number one cause of death. Selective prevention of CMDs by general practitioners (GPs) could help reduce the burden of CMDs. This measure would entail the identification of individuals at high risk of CMDsubut currently asymptomaticufollowed by interventions to reduce their risk. No data were available on the attitude and the extent to which European GPs have incorporated selective CMD prevention into daily practice.

    Methods: A survey among 575 GPs from the Czech Republic, Denmark, Greece, the Netherlands and Sweden was conducted between September 2016 and January 2017, within the framework of the SPIMEU-project.

    Results: On average, 71% of GPs invited their patients to attend for CMD risk assessment. Some used an active approach (47%) while others used an opportunistic approach (53%), but these values differed between countries. Most GPs considered selective CMD prevention as useful (82%) and saw it as part of their normal duties (84%). GPs who did find selective prevention useful were more likely to actively invite individuals compared with their counterparts who did not find prevention useful. Most GPs had a disease management programme for individuals with risk factor(s) for cardiovascular disease (71%) or diabetes (86%).

    Conclusions: Although most GPs considered selective CMD prevention as useful, it was not universally implemented. The biggest challenge was the process of inviting individuals for risk assessment. It is important to tailor the implementation of selective CMD prevention in primary care to the national context, involving stakeholders at different levels.

  • Germain, Viola
    The Nordic Museum.
    Märthaskolan1988In: Kläder, Stockholm: Nordiska museets förlag, 1988, p. 162-175Chapter in book (Other academic)
  • Larsson, Marianne
    The Nordic Museum.
    Från badkostym till bikini1988In: Kläder, Stockholm: Nordiska museets förlag, 1988, p. 136-161Chapter in book (Other academic)
  • Svendsen, Martin
    et al.
    Stockholm University, Faculty of Social Sciences, Stockholm Business School, Marketing.
    Östberg, Jacoc
    Stockholm University, Faculty of Social Sciences, Stockholm Business School, Marketing.
    Varning för Maslows ­bedrägliga tjuskraft! Behovshierarkin – en populär modell som saknar vetenskapliga belägg2019In: Organisation & Samhälle, ISSN 2001-9114, E-ISSN 2002-0287, no 1Article in journal (Other academic)
    Abstract [sv]

    den här artikeln kommer vi att diskutera den så kallade behovs­hierarkin, en modell som gett avtryck i företags­eko­nomiska utbildningar och i förlängningen företagsekonomisk praktik. Modellen lanserades av psykologen Abraham ­Maslow på 1940-talet för att förklara mänskligt beteende. Ambitionen med modellen var att förklara alla mänskliga psykologiska drivkrafter.

  • Public defence: 2019-05-10 13:00 FP41, hus 1, AlbaNova universitetscentrum, Stockholm
    Anderson, Emma K.
    Stockholm University, Faculty of Science, Department of Physics.
    DESIREE: Instrumentation Developments and Hot Metal Cluster Decays2019Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    This thesis presents instrumentation developments and measurements performed at the Double ElectroStatic Ion Ring ExpEriment, DESIREE, at Stockholm University. DESIREE operates at cryogenic temperatures ~13 K, with very low background pressures of ~10-14mbar, allowing the observation of stored ions to long times of tens of seconds and longer.

    Investigations into improving the count rate capability of the DESIREE detectors are presented. Microchannel plate (MCP) detectors are used for position sensitive particle counting in the DESIREE detector assemblies. In a cryogenic environment the operational resistance of MCPs is orders of magnitude higher than at room temperature and this limits the possible count rates. Novel low-resistance MCP detectors were investigated and resulted in the replacement of the MCPs in the DESIREE detector assemblies.

    DESIREE was used to measure spontaneous decays of hot, small cluster anions. The decays of small silver, copper and gold cluster anions are presented and compared to statistical model calculations. An experiment that is able to measure the proportion of spontaneous decay due to fragmentation or electron detachment in dimer anions of silver and copper is presented and significant, previously overlooked, contributions from electron detachment to the decay is identified. Furthermore, measurements of the stability and decay of small carbon cluster dianions are presented. These experiments utilised the aforementioned low-resistance MCPs.

  • Public defence: 2019-05-10 10:00 Magnélisalen, Kemiska övningslaboratoriet, Stockholm
    Björck, Markus
    Stockholm University, Faculty of Science, Department of Biochemistry and Biophysics.
    Regulation of proton-coupled electron transfer in cytochrome c oxidase: The role of membrane potential, proton pathways and ATP2019Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    Cytochrome c oxidase (CytcO) is the final electron acceptor of the respiratory chain. In this chain a current of electrons, derived from degradation of nutrients, along with protons, are used to reduce oxygen to water. The reaction is exergonic and the excess energy is used to pump protons across the membrane. This proton-coupled electron transfer is regulated, for example, by the membrane potential, the composition of the membrane and the ATP/ADP concentrations. 

    Here, we have investigated the mechanism of this regulation. Specifically, we investigated ligand binding to CytcO in mitochondria, which provides mechanistic information about CytcO in its native environment. In addition to CytcO, a water soluble protein, flavohemoglobin (yHb) was found to bind CO and we found that it is localized in the intermembrane space (IMS). We also extracted CytcO from mitochondria without detergent using the styrene maleic acid (SMA) co-polymer. We could show that the SMA-extracted CytcO behaved similarly in its reaction with O2 and CO as CytcO in mitochondria.

    In mitochondria and bacterial membranes CytcO transports charges against a transmembrane electrochemical gradient. We induced a membrane potential across sub-mitochondrial particles (SMPs) by addition of ATP and measured single CytcO turnover. Our results indicate that proton transfer, but not electron transfer, across the membrane is affected by the membrane potential.

    In yeast CytcO subunit Cox13 has been shown to play a role in ATP/ADP binding to regulate activity. We have solved the structure of Cox13 using NMR and identified the residues that constitute the ATP-binding site, which is located at the C-terminus.

    Finally we showed that the main proton-transfer pathways in yeast CytcO function similarly to their bacterial counterparts and that the proposed H-pathway, absent in bacteria, is not responsible for proton translocation in mitochondrial CytcO from S. cerevisiae.

  • Public defence: 2019-05-10 13:00 David Magnussonsalen (U31), Stockholm
    Tyrberg, Mårten
    Stockholm University, Faculty of Social Sciences, Department of Psychology.
    Bringing psychological treatment to the psychiatric ward: Affecting patients, staff, and the milieu2019Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    The psychiatric ward is a complex setting. This has to do partly with the severity of the patients’ suffering. Often, they present with such diagnoses as psychosis, self-harm, substance abuse, and suicidality. In fact, they often present with a combination of these. This renders the delivery of effective treatment a challenging task. Partly, the complexity of the ward has to do with aspects of the context itself. Admissions and discharges often happen fast and unexpectedly, staff members are expected to handle various challenging behaviors, they display quite high levels of burnout and work dissatisfaction, and the wards are often staffed by bank staff, leading to a lack of continuity of care. This adds to the challenge of delivering effective treatment. In the typical Swedish ward, treatment consists of medication, nursing, observation, and management of risk behaviors. Psychological treatment is seldom a routine part of inpatient care. However, there are sound arguments for adding psychological treatment in the form of cognitive behavior therapy (CBT) of various modalities. Further, there is promise in psychosocial interventions delivered by the nursing staff after appropriate training, and in providing supervision to the staff.

    The aim of the present thesis was to investigate the feasibility and potential efficacy of acceptance and commitment therapy (ACT), a CBT based psychotherapy model, as a broadly applied intervention in the context of psychiatric inpatient care. In three studies, ACT was evaluated as a brief individual psychotherapy intervention, and as a psychologically informed approach to dealing with patients performed by the nursing staff group in a psychiatric ward for psychosis patients.

    In study I, an average of two sessions of ACT was delivered to patients (n = 11) with a diagnosis of psychosis. Compared to a control group (n = 10), the risk for rehospitalization during a four-month follow-up period was significantly smaller for patients in the experimental group. There was also a trend toward increased values-based living scores in the experimental group, compared to controls.

    Study II evaluated the effects on staff members (n = 20) and patients (n = 9) of a brief ACT training intervention tailored to the staff group, the aim of which was to introduce ACT as a day-to-day approach to dealing with patients. After a total of 12 hours of ACT training, the staff group displayed a slight increase in work-related psychological flexibility, compared to before, while a non-randomized control group (n = 18) displayed a slight decrease. Patients being treated on the ward after the staff training displayed a slight increase in psychological flexibility during ward treatment, while patients being treated before displayed a slight decrease. In both cases, however, the differences were considered quite small (non-significant in statistical terms). Further, the study investigated ACT-consistent behavior changes among staff members following ACT training, using a multiple baseline single-subject design. Results revealed both expected and unexpected patterns of behavior.

    In study III, the usefulness of the ACT model was investigated using a qualitative content analysis. Staff members (n = 10) experienced ACT as useful in terms of dealing with patients’ struggles, enriching typical duties, and dealing with their own stress. Difficulties in using the model related to time restraints, complexities of the model itself, and the severity of patients’ illnesses.

    In summary, the present thesis adds to the research basis for ACT as a treatment for psychosis, delivered in an inpatient setting. It shows that the introduction of ACT as an add-on to traditional ward treatment in Sweden is for the most part feasible and acceptable. However, the thesis also discusses various challenges in the implementation of psychological treatment in such a complex context as the inpatient ward, both in terms of delivery of the treatment itself and the evaluation of its effectiveness.

  • Tegman, Ulla
    The Nordic Museum.
    Strumpbyxor1988In: Kläder, Stockholm: Nordiska museets förlag, 1988, p. 121-135Chapter in book (Other academic)
  • Eldvik, Berit
    The Nordic Museum.
    Mah Jong. Mode och livsstil1988In: Kläder, Stockholm: Nordiska museets förlag, 1988, p. 191-120Chapter in book (Other academic)
  • Bergman, Ingrid
    The Nordic Museum.
    Augusta Lundin vår första modedirektris1988In: Kläder, Stockholm: Nordiska museets förlag, 1988, p. 96-100Chapter in book (Other academic)
  • Resare, Ann
    The Nordic Museum.
    Och bruden bar...1988In: Kläder, Stockholm: Nordiska museets förlag, 1988, p. 76-95Chapter in book (Other academic)
  • Bergman, Ingrid
    The Nordic Museum.
    Kvinnorna och byxorna1988In: Kläder, Stockholm: Nordiska museets förlag, 1988, p. 32-55Chapter in book (Other academic)
  • Rundquist, Angela
    The Nordic Museum.
    Modets makt1988In: Kläder, Stockholm: Nordiska museets förlag, 1988, p. 13-31Chapter in book (Other academic)
  • Zhang, Xinhai
    KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Embedded Control Systems.
    Automated Support for the Architecting of Distributed Embedded Systems: Methods and Analysis for Industrial Adoption2017Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    The architecture design complexity of modern embedded systems, such as in the automotive domain, is growing due to the rapidly evolved functionalities, the increasing amount of interactions between functions and computation nodes, and the stringent extra-functional requirements. Architecture design is crucial since it affects nontrivial system properties such as safety, cost, performance of functionalities and also the development time. An important enabler to deal with this complexity is to provide computer aided architecture design. This thesis focuses on such support for Design Space Exploration (DSE), relying on a model-based design (MBD) environment.

    The goal of this thesis is to improve the industrial adoption of DSE methods to facilitate the architecture design of distributed embedded systems in the automotive industry. The main contributions of this thesis are as follows: (1) Applying architecture recovery in the automotive industry to extract architecture models from legacy ECU source code. The recovered architecture models can be used to facilitate system understanding, to verify the software implementation against its specification and also to enable DSE for architecture design. (2) A systematic gap analysis was conducted between the state-of-the-art DSE methods and the industrial needs, through literature studies and interviews with experienced system architects. Identified gaps are analyzed from the following perspectives: Architecting scenarios, architectural decisions, quality attributes, cost model, procurement strategy, system variability and functional safety. (3) A new problem formulation was proposed to reduce the design space by utilizing the features of evolutionary architecting and the AUTOSAR layered architecture. (4) In order to enhance the flexibility of the DSE methods by enabling the customizability of the architectural constraints, an automatic transformation method is proposed to translate formally described architectural constraints into the corresponding mixed integer linear programming(MILP) constraints, commonly used for DSE. (5) This thesis also investigates the potential impacts of vehicular communication on the future architecture of automotive embedded systems from the timing perspective through a case study to enable a commercial truck with cooperative driving functionalities. The receiving bias problem was identified during the case study and effective architectural solutions were proposed. The case study also showed that the adoption of vehicular communication would not have significant architectural impacts in terms of timing.

  • Skagerfors, Mona
    The Nordic Museum.
    Kläder1988In: Kläder, Stockholm: Nordiska museets förlag, 1988, p. 9-12Chapter in book (Other academic)
  • Public defence: 2019-05-10 09:30 Sal B, Stockholm
    Roozbeh, Amir
    KTH, School of Electrical Engineering and Computer Science (EECS), Communication Systems, CoS. Ericsson Research.
    Toward Next-generation Data Centers: Principles of Software-Defined “Hardware” Infrastructures and Resource Disaggregation2019Licentiate thesis, monograph (Other academic)
    Abstract [en]

    The cloud is evolving due to additional demands introduced by new technological advancements and the wide movement toward digitalization. Therefore, next-generation data centers (DCs) and clouds are expected (and need) to become cheaper, more efficient, and capable of offering more predictable services.

    Aligned with this, we examine the concept of software-defined “hardware” infrastructures (SDHI) based on hardware resource disaggregation as one possible way of realizing next-generation DCs. We start with an overview of the functional architecture of a cloud based on SDHI. Following this, we discuss a series of use-cases and deployment scenarios enabled by SDHI and explore the role of each functional block of SDHI’s architecture, i.e., cloud infrastructure, cloud platforms, cloud execution environments, and applications.

    Next, we propose a framework to evaluate the impact of SDHI on techno-economic efficiency of DCs, specifically focusing on application profiling, hardware dimensioning, and total cost of ownership (TCO). Our study shows that combining resource disaggregation and software-defined capabilities makes DCs less expensive and easier to expand; hence they can rapidly follow the exponential demand growth. Additionally, we elaborate on technologies behind SDHI, its challenges, and its potential future directions.

    Finally, to identify a suitable memory management scheme for SDHI and show its advantages, we focus on the management of Last Level Cache (LLC) in currently available Intel processors. Aligned with this, we investigate how better management of LLC can provide higher performance, more predictable response time, and improved isolation between threads. More specifically, we take advantage of LLC’s non-uniform cache architecture (NUCA) in which the LLC is divided into “slices,” where access by the core to which it closer is faster than access to other slices. Based upon this, we introduce a new memory management scheme, called slice-aware memory management, which carefully maps the allocated memory to LLC slices based on their access time latency rather than the de facto scheme that maps them uniformly. Many applications can benefit from our memory management scheme with relatively small changes. As an example, we show the potential benefits that Key-Value Store (KVS) applications gain by utilizing our memory management scheme. Moreover, we discuss how this scheme could be used to provide explicit CPU slicing – which is one of the expectations of SDHI  and hardware resource disaggregation.

  • Rönnqvist, Mats
    et al.
    Göteborgs universitet.
    Larsson, Håkan
    Gymnastik och idrottshögskolan.
    Nyberg, Gunn
    Dalarna University, School of Education, Health and Social Studies, Sport and Health Science.
    Barker, Dean
    Örebro universitet.
    Understanding learners’ sense making of movement learning in physical education2019In: Curriculum studies in Health and Physical Education, ISSN 2574-2981Article in journal (Refereed)
    Abstract [en]

    There is a substantial body of physical education scholarship focusing on movement learning. The question of how pupils themselves make sense of movement learning has however, largely escaped attention. Answers to such a question would seem to be highly germane if educators are to engage in pupil centered pedagogies. In light of this absence, the aim of this investigation was to describe how movement learners made sense of their own movement development. Drawing on theoretical tenets of Gilbert Ryle (2009. The concept of mind. New York, NY: Routledge) and Michael Polanyi (1969. Knowing and being. Essays by Michael Polanyi . Chicago, IL: University of Chicago Press), three cases from an investigation in which movement learning was occurring are presented. The investigation was conducted during a physical education project week with pupils from an upper secondary school. Data were produced using observations, informal interviews, semi-structured interviews, and research diaries as a group of pupils learned to juggle. The results suggest that: the aspects of moving to which learners attend change as they learn; learners have a relatively limited capacity to verbally articulate what they learn, and; learners ’ expectations of ideal ways of moving have considerable impact on how they come to make sense of their own ways of moving. The practical implications of these points are discussed in the final section of the paper.

  • Burman, Lars
    Uppsala University, University Library.
    Glömd kärlek: Om Torsten Rudeens dikter2019In: Kungl. Humanistiska Vetenskaps-Samfundet i Uppsala. Årsbok, ISSN 0349-0416, Vol. 2017-2018, p. 37-41Article in journal (Other (popular science, discussion, etc.))
    Abstract [en]

    Forgotten Love. The Poetry of Torsten Rudeen

    Torsten Rudeen (1661–1729) was a productive and much-appreciatedwriter of occasional poetry, especially during the 1680s, but his most notablecontribution to Swedish literature are his love poems, not least those tohis wife Anna (1675–1695). These were not printed in his own time andhave never been scholarly collected and edited, a reason why Rudeen todayis less known. His poetry on love and matrimony will, however, be publishedby Lars Burman in a critical edition in early 2019 (Svenska Vitterhetssamfundet).This article introduces Rudeen who harkened from Värmlandand studied at Uppsala University. He was appointed poëseos professorat Turku (Åbo) University in 1692 and Superintendent (Bishop) inKarlstad in 1709. He crowned his career as Bishop in Linköping. The articlediscusses the fate of lesser-known but interesting authorships, andhighlights the poetic immediacy of Torsten Rudeen’s sentiments, unusualfor the Swedish 17th century.

  • Adebiyi, Abdulafeez
    Department of Mechanical and Aerospace Engineering, West Virginia University, Morgantown, West Virginia 26506, USA.
    Valiev, Damir
    Umeå University, Faculty of Science and Technology, Department of Applied Physics and Electronics. Center for Combustion Energy, Key Laboratory for Thermal Science and Power Engineering of the Ministry of Education of China, Department of Energy and Power Engineering, Tsinghua University, Beijing 100084, China.
    Akkerman, V’yacheslav
    Department of Mechanical and Aerospace Engineering, West Virginia University, Morgantown, West Virginia 26506, USA.
    Effect of surface friction on ultrafast flame acceleration in obstructed cylindrical pipes2019In: AIP Advances, ISSN 2158-3226, E-ISSN 2158-3226, Vol. 9, no 3, article id 035249Article in journal (Refereed)
    Abstract [en]

    The Bychkov model of ultrafast flame acceleration in obstructed tubes [Valiev et al., “Flame Acceleration in Channels with Obstacles in the Deflagration-to-Detonation Transition,” Combust. Flame 157, 1012 (2010)] employed a number of simplifying assumptions, including those of free-slip and adiabatic surfaces of the obstacles and of the tube wall. In the present work, the influence of free-slip/non-slip surface conditions on the flame dynamics in a cylindrical tube of radius R, involving an array of parallel, tightly-spaced obstacles of size αR, is scrutinized by means of the computational simulations of the axisymmetric fully-compressible gasdynamics and combustion equations with an Arrhenius chemical kinetics. Specifically, non-slip and free-slip surfaces are compared for the blockage ratio, α, and the spacing between the obstacles, ΔZ, in the ranges 1/3 ≤ α ≤ 2/3 and 0.25 ≤ ΔZ/R ≤ 2.0, respectively. 

    For these parameters, an impact of surface friction on flameacceleration is shown to be minor, only 1-4%, slightly facilitating acceleration in a tube with ΔZ/R = 0.5 and moderating acceleration in thecase of ΔZ/R = 0.25. Given the fact that the physical boundary conditions are non-slip as far as the continuum assumption is valid, the presentwork thereby justifies the Bychkov model, employing the free-slip conditions, and makes its wider applicable to the practical reality. Whilethis result can be anticipated and explained by a fact that flame propagation is mainly driven by its spreading in the unobstructed portion ofan obstructed tube (i.e. far from the tube wall), the situation is, however, qualitatively different from that in the unobstructed tubes, wheresurface friction modifies the flame dynamics conceptually.

  • Logotheti, Marianthi
    et al.
    e-NIOS Applications PC, Kallithea, Greece; Laboratory of Biotechnology, School of Chemical Engineering, National Technical University of Athens, Athens, Greece.
    Chatziioannou, Aristotelis
    e-NIOS Applications PC, Kallithea, Greece; Metabolic Engineering and Bioinformatics Group, Institute of Biology, Medicinal Chemistry and Biotechnology, National Hellenic Research Foundation, Athens, Greece.
    Venizelos, Nikolaos
    Örebro University, School of Medical Sciences.
    Kolisis, Fragiskos
    Laboratory of Biotechnology, School of Chemical Engineering, National Technical University of Athens, Athens, Greece.
    Recent Advancements in Bipolar Disorder studies through Genomic, Epigenomic and Metagenomic Approaches2019In: Journal of Psychiatry and Psychology Research, ISSN 2640-6136, Vol. 2, no 1, p. 56-66Article, review/survey (Refereed)
    Abstract [en]

    Bipolar disorder is a complex and highly heritable psychiatric disorder characterized by severe mood alterations. The precise geneticunderpinnings of the disease have not been identified so far, despite numerous genome-wide association findings. This review describes thecurrent state of genetic studies based on next generation sequencing technologies including whole exome and whole genome sequencing, aswell as RNA-sequencing and highlights the fact that the integration of these studies can reveal novel knowledge such as the functional roleof gene variants. However, due to the complexity of bipolar disorder, it is a compelling candidate for studies beyond DNA and RNAsequencing. Epigenetic alterations, defined as heritable but reversible modifications including DNA methylation, DNAhydroxymethylation, histone modifications and non-coding RNAs may be the link between genome and environment interactions.Additionally, a possible source of the reported immune activation in bipolar disorder is the micro biome of gastrointestinal tract, due torecent studies that indicate its pivotal role in brain function through the ‘gut-brain’ axis. The identification of methods able to modulate themicro biome emerges as a promising path for novel diagnostic and treatment options in bipolar disorder, thus the number of metagenomicstudies in bipolar disorder has substantially increased the last years. Overall, the paper aims to review the most recent literature ongenomic, epigenomic and metagenomic studies that have contributed to our understanding of the pathophysiology of bipolar disorder sofar. The paper also focuses on the exploitation of recent advancements in high-throughput technologies for the elucidation of bipolardisorder through different approaches that may provide complementary knowledge and concludes to the need for merging the gap betweenall the gathered knowledge from the analysis of high-throughput data.

  • Bodin, Helena
    Stockholm University, Faculty of Humanities, Department of Culture and Aesthetics.
    Seclusion versus Accessibility: The Harems of Constantinople as Aesthetic Worlds in Stories by Elsa Lindberg-Dovlette2018In: World Literatures: Exploring the Cosmopolitan-Vernacular Exchange / [ed] Stefan Helgesson, Annika Mörte Alling, Yvonne Lindqvist and Helena Wulff, Stockholm: Stockholm University Press, 2018, p. 246-260Chapter in book (Refereed)
    Abstract [en]

    This chapter examines the strategies according to which the Swedish author Elsa Lindberg-Dovlette’s stories, set in Ottoman harems of Constantinople in the early twentieth century, create a distinctive aesthetic world (Hayot, 2012). It is demonstrated that this world is constructed out of the limited and distorted views from behind the veil. By means of their aesthetic “worldedness”, Lindberg-Dovlette’s stories make the secluded milieus of women in the harems of cosmopolitan Constantinople – their special limited view and reduced mobility – accessible to western readers in their vernacular languages, not only in Swedish, but also in translation into Finnish, German, French and Dutch.

  • Engström, Christian
    et al.
    Umeå University, Sweden.
    Grubisic, Luka
    University of Zagreb, Croatia.
    A subspace iteration algorithm for Fredholm valued functions2015In: Mathematical problems in engineering (Print), ISSN 1024-123X, E-ISSN 1563-5147, Vol. 2015, p. 1-14, article id 459895Article in journal (Refereed)
    Abstract [en]

    We present an algorithm for approximating an eigensubspace of a spectral component of an analytic Fredholm valued function. Our approach is based on numerical contour integration and the analytic Fredholm theorem. The presented method can be seen as a variant of the FEAST algorithm for infinite dimensional nonlinear eigenvalue problems. Numerical experiments illustrate the performance of the algorithm for polynomial and rational eigenvalue problems.

  • Engström, Christian
    et al.
    Umeå University, Sweden.
    Torshage, Axel
    Umeå University, Sweden.
    Enclosure of the numerical range of a class of non-selfadjoint rational operator functions2017In: Integral equations and operator theory, ISSN 0378-620X, E-ISSN 1420-8989, Vol. 88, no 2, p. 151-184Article in journal (Refereed)
    Abstract [en]

    In this paper we introduce an enclosure of the numerical range of a class of rational operator functions. In contrast to the numerical range the presented enclosure can be computed exactly in the infinite dimensional case as well as in the finite dimensional case. Moreover, the new enclosure is minimal given only the numerical ranges of the operator coefficients and many characteristics of the numerical range can be obtained by investigating the enclosure. We introduce a pseudonumerical range and study an enclosure of this set. This enclosure provides a computable upper bound of the norm of the resolvent.

  • Engström, Christian
    et al.
    Umeå University, Sweden.
    Torshage, Axel
    Umeå University, Sweden.
    On equivalence and linearization of operator matrix functions with unbounded entries2017In: Integral equations and operator theory, ISSN 0378-620X, E-ISSN 1420-8989, Vol. 89, no 4, p. 465-492Article in journal (Refereed)
    Abstract [en]

    In this paper we present equivalence results for several types of unbounded operator functions. A generalization of the concept equivalence after extension is introduced and used to prove equivalence and linearization for classes of unbounded operator functions. Further, we deduce methods of finding equivalences to operator matrix functions that utilizes equivalences of the entries. Finally, a method of finding equivalences and linearizations to a general case of operator matrix polynomials is presented.

  • Brunow, Dagmar
    Linnaeus University, Faculty of Arts and Humanities, Department of Film and Literature.
    Manchester’s post-punk heritage: mobilising and contesting transcultural memory in the context of urban regeneration2019In: Culture Unbound. Journal of Current Cultural Research, ISSN 2000-1525, E-ISSN 2000-1525, Vol. 11, no 1, p. 9-29Article in journal (Refereed)
    Abstract [en]

    Urban memories are remediated and mobilised by different - and often conflicting - stakeholders, representing the heritage industry, municipal city branding campaigns or anti-gentrification struggles. Post-punk ‘retromania’ (Reynolds 2011) coincided with the culture-led regeneration of former industrial cities in the Northwest of England, relaunching the cities as creative clusters (Cohen 2007, Bottà 2009, Roberts & Cohen 2014, Roberts 2014). Drawing on my case study of the memory cultures evolving around Manchester‘s post-punk era (Brunow 2015), this article shows how narratives and images travel through urban space. Looking at contemporary politics of city branding, it examines the power relations involved in adapting (white homosocial) post-punk memories into the self-fashioning of Manchester as a creative city. Situated at the interface of memory studies and film studies, this article offers an anti-essentialist approach to the notion of ‘transcultural memory’. Examining the power relations involved in the construction of audiovisual memories, this article argues that subcultural or popular memories are not emancipatory per se, but can easily tie into neoliberal politics. Moreover, there has been a tendency to sideline or overlook feminist and queer as well as Black and Asian British contributions to post-punk culture. Only partially have such marginalised narratives been observed so far, for instance in Carol Morley’s documentary The Alcohol Years (2000) or by the Manchester Digital Music Archive. The article illustrates how different stakeholders invest in subcultural histories, sustaining or contesting hegemonic power relations within memory culture. While being remediated within various transmedia contexts, Manchester’s postpunk memories have been sanitised, fabricating consensus instead of celebrating difference.

  • Wernholm, Marina
    Linnaeus University, Faculty of Social Sciences, Department of Pedagogy and Learning.
    Children´s shared experiences of participating in digital communities2018In: Nordic Journal of Digital Literacy, ISSN 1891-943X, E-ISSN 1891-943X, Vol. 13, no 4, p. 38-55Article in journal (Refereed)
    Abstract [en]

    The aim of this study is to gain knowledge about children’s participation in digital communities and to develop a model that can be used as a tool for practitioners. The research question guiding the study is: What kind of participation emerges from children’s shared experiences when engaging in digital communities? Lave and Wenger’s theory about communities of practice, and their notion of legitimate peripheral participation, are used. The data consist of nine individual interviews with children. Through nexus analysis, four different kinds of participation are identified: friendship-driven, interest-driven, knowledge-driven and performance-driven. The study generates an empirical model that can be used for interpreting and understanding children’s participation. The main findings are significant aspects of participation, linked to friendship, the connection between digital cultures, learning, literacy, identity and performativity, democratic implications and practices in constant change.

  • Janson, Svante
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Mathematics, Analysis and Probability Theory.
    Linusson, Svante
    Matematiska institutionen, KTH, Stockholm, Sweden.
    Proportionella val inom kommunfullmäktige2019Report (Other academic)
    Abstract [sv]

    Vi diskuterar två olika problem som kan uppstå vid proportionella val i kommunfullmäktige och regionfullmäktige når ett parti försöker en kupp genom att utan samtycke gå i kartell med ett annat parti vid val till nämnd eller styrelse, vilket aktualiserades i åtminstone ett par fall hösten 2018. Det första problemet är vad sådana oönskade valkarteller kan få för effekter, och vilka möjligheter det finns för ett parti att skydda sig från att bli del i en oönskad valkartell. Det andra problemet är att i en sådan valkartell kan ett parti genom att splittra upp sina kandidater strategiskt  på flera olika valsedlar få fler platser i en nämnd är vad som är proportionellt. Detta andra problem bottnar i att lagen om proportionella val stipulerar att Thieles metod skall användas för fördelning inom kartellen. På detta problem finns en enkel matematisk lösning och vi argumenterar för att man skall byta till Phragméns metod som används för motsvarande val till utskott i riksdagen.

  • Al-Najjar, Basim
    et al.
    Linnaeus University, Faculty of Technology, Department of Mechanical Engineering.
    Algabroun, Hatem
    Linnaeus University, Faculty of Technology, Department of Mechanical Engineering.
    Jonsson, Mikael
    E-maintenance Sweden AB, Sweden.
    Maintenance 4.0 to fulfil the demands of Industry 4.0 and Factory of the Future2018In: International Journal of Engineering Research and Applications, ISSN 2248-9622, E-ISSN 2248-9622, Vol. 8, no 11, p. 20-31Article in journal (Refereed)
    Abstract [en]

    In today's high market competition, industries attempt adapt new technologies retain their market share. With technology advancement in factories, maintenance methods are developed to suit the new manufacturers. demands. Now, with the Industry 4.0, new maintenance techniques have to be developed to fulfill the new demands which we refer to as Maintenance 4.0. Each currently used maintenance technique has its own advantages and disadvantages. Until now it is unclear if these techniques are suitable for Industry 4.0. This study shows how to identify the maintenance technique that is the most suitable to be further developed for Industry 4.0. In this paper, the tasks and features of Maintenance 4.0 are identified, and the suitability of the most popular maintenance techniques is examined with respect to Industry 4.0 demands. This is done by using Multiple Attribute Decision Making combined with the Simple Additive Weight. The results show that Total Quality Maintenance(TQMain) and then Condition Based Maintenance(CBM) are the highest ranked among the examined maintenance techniques, and therefore it is concluded that these maintenance techniques could be used as a based to develop Maintenance 4.0.

  • Al-Najjar, Basim
    et al.
    Linnaeus University, Faculty of Technology, Department of Mechanical Engineering.
    Algabroun, Hatem
    Linnaeus University, Faculty of Technology, Department of Mechanical Engineering.
    Jonsson, Mikael
    E-maintenance Sweden AB, Sweden.
    Smart maintenance model using cyber physical system2018In: Paper presented at the International Conference on "Role of Industrial Engineering in Industry 4.0 Paradigm" (ICIEIND), Bhubaneswar, India, September 27-30, 2018, 2018, p. 1-6Conference paper (Refereed)
    Abstract [en]

    Modern manufacturing are exposed to rapid and dynamic changes in operating conditions, market demands, national and international competition. Therefore, new generations and concepts of maintenance techniques are necessary to overcome the deficiencies  in the current techniques. The purpose of this paper is to propse a maintenance model that is automatic, digitzalised and intelligent using Cyber Physical System (CPS-Maint). In this paper, we presented comparable maintenance approaches and described their shortages. Thereafter, we developed a new maintenance model. Then, A simulation using LabVIEW is conducted  to examin the model and its behavior. The results showed that the required tasks are performed with no conflict among its components. The major result is the development of CPS-Maint and the major conclusion is applying CPS-Maint fulfills industry needs. This paper provides a framework that could help developers and researchers in desining and developing an automatic and smart maintenance system.