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  • Kröger, Björn
    Uppsala University, Music and Museums, Museum of Evolution. Museum für Naturkunde, D–10115 Berlin, Invalidenstrasse 43, Germany..
    The cephalopods of the Boda Limestone, Late Ordovician, of Dalarna, Sweden2013In: EUROPEAN JOURNAL OF TAXONOMY, ISSN 2118-9773, Vol. 41, 1-110 p.Article in journal (Refereed)
    Abstract [en]

    The late Katian, Late Ordovician Boda Limestone of Dalarna, Sweden contains a rich cephalopod assemblage. The assemblage consists of 61 species, in 31 genera, comprising almost all major Ordovician cephalopod orders. Most common and diverse are the Orthocerida. The Ascocerida are also remarkably common and diverse. The new ascocerid species, Redpathoceras bullatum sp. nov., R. depressum sp. nov., R. magnum sp. nov., and Probillingsites scandinavicum sp. nov., give reason to revise current hypotheses on the origin and evolution of this group. An ascocerid origin from barrandeoceratids or aspidoceratids is hypothesised. The absence of actinocerids in the Boda Limestone is notable, and is interpreted as an indication of relatively cool and/or deep depositional environments. The dominance of orthocerids is provisionally interpreted as evidence for nutrient-rich waters during the time of the deposition of the Boda Limestone. Additionally, the assemblage contains the new barrandeocerids Schuchertoceras fryi sp. nov., Siljanoceras varians gen. et sp. nov., Warburgoceras gen. nov. (for Cyrtoceras longitudinale Angelin in Angelin & Lindstrom, 1880), the new endocerid Cameroceras turrisoides sp. nov., the new oncocerid Cyrtorizoceras thorslundi sp. nov., and the new orthocerids Dawsonoceras stumburi sp. nov., Isorthoceras angelini sp. nov., I. curvilineatum sp. nov., Nathorstoceras adnatum gen. et sp. nov., N. kallholnense gen. et sp. nov., Palaeodawsonocerina? nicolletoides sp. nov., Pleurorthoceras osmundsbergense sp. nov., and Striatocycloceras isbergi sp. nov.

  • Bok, Bengt
    Stockholm University of the Arts, The Film and Media Department.
    Encounter with the Other: some reflections in interviewing2015 (ed. 1)Book (Other academic)
    Abstract [en]

    he interview is an art form. Two people meet to talk to each other. They meet to talk about something important, or to talk about the life of the person being interviewed. Reaching deep down inside a person is a process. Being part of this process can make you dizzy, giddy. Interviewing is a job where listening and inquiry often give us someone’s life story. It’s about deciphering a person’s thoughts and testimonies; what he or she says or does not say. The interview is an art form that can be likened to understanding poetry… it’s about interpreting, cracking codes, working things out. An interview must not turn into a polite conversation or discussion, but should be a form of concentrated and honest communication. The interviewer must not be out to please or impress, but should be relatively confident in him/herself without being some kind of emotional superman (übermensch). On the contrary, perhaps the interviewer’s own weaknesses and faults often result in a sensitivity and a capacity to be able to hone in on what is really important in the encounter that is ‘the interview’.The interviewer must be equipped with a certain capacity for empathy with “the Other”. To be able to identify with trong enough to understand that these experiences are not one’s own, but those of the Other. It’s important to learn how to step into an interview with full concentration and presence, then step back and regard and analyse what is happening, and then step back in again. This allows for what is generally a necessary (and healthy) distancing of oneself, as well as some pause for reflection and repose in order to then recharge for the next ‘entry’.If it so happens that I, as the interviewer, have a capacity for empathy and a sensitivity, it’s important that I don’t lose myself in the Other’s situation, but maintain a professional attitude in the interview – a brotherly, professional, attitude. I have had this sensitivity myself since childhood, and in many instances, it has been a curse. However, in recent years I have understood and consoled myself with the fact that it has also been the foundation of my work and my way of approaching people. Without it, I might not have the ‘radar’ that has assisted me in my quest for the Other’s inner self. A journey that I never cease to be fascinated by, as my curiosity is continuously piqued anew.During a walk with a colleague and similarly sensitive soul, it became apparent that we both held a common belief that we had done our best interviews when we were heavily hung over. This was when our senses were at their most open and our own defences completely crushed. There exists a freedom in this parlous state – a freedom in which feelings and intuition have free rein. Where we can detect very subtle signals and undertones from interviewees. Any question can be asked – prestige and our own inner fears do not exist in this state.That said, to subject oneself to a heavy hangover as a working method is a highly unhealthy and just plain crazy idea! For this reason, we must try to achieve this same sense of freedom by other means.And that is what this book deals with. It is based on the encounters I have had and what occurred in these encounters. How can I make use of this experience to achieve… honesty? (not the truth)… and some meaning with it all… How can I prepare myself?

  • Lagerås, Bodil (Editor)
    Stockholm University of the Arts, The Department for Acting.
    Norrthon, Simon (Editor)
    Stockholm University of the Arts, The Department for Acting.
    En antologi om lärarnas pedagogiska och konstnärliga arbete2015Other (Other (popular science, discussion, etc.))
    Abstract [sv]

    Den här boken beskriver ämnena på institutionen för skådespeler i men den handlar också om lärarna som arbetar här.Vi har valt att skriva om ämnena såsom vi undervisar dem, samtidigtskriver vi om vår syn på konst, pedagogik och kunskapsmål.Vi tänker att du som läser är nyfiken på att studera ellerarbeta på institutionen – eller att du bara är nyfiken.De ämnen vi undervisar i har alla en stark praktisk kopplingoch låter sig inte fångas så lätt, men här är ett försökatt ringa in vilka vi är och vad vi gör.

  • Public defence: 2017-03-17 09:00 Hasselquist, Linköping
    Bahrampour, Shahrzad
    Linköping University, Department of Clinical and Experimental Medicine, Division of Microbiology and Molecular Medicine. Linköping University, Faculty of Medicine and Health Sciences.
    Genetic mechanisms regulating proliferation and cell specification in the Drosophila embryonic CNS2017Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    The central nervous system (CNS) consists of an enormous number of cells, and large cellular variance, integrated into an elaborate network. The CNS is the most complex animal organ, and therefore its establishment must be controlled by many different genetic programs. Considering the high level of complexity in the human CNS, addressing issues related to human neurodevelopment represents a major challenge. Since comparative studies have revealed that neurodevelopmental programs are well conserved through evolution, on both the genetic and functional levels, studies on invertebrate neurodevelopmental programs are often translatable to vertebrates. Indeed, the basis of our current knowledge about vertebrate CNS development has been greatly aided by studies on invertebrates, and in particular on the Drosophila melanogaster (fruit fly) model system.

    This thesis attempted to identify novel genes regulating neural cell specification and proliferation in the CNS, using the Drosophila model system. Moreover, I aimed to address how those genes govern neural progenitor cells (neuroblasts; NBs) to obtain/maintain their stemness identity and proliferation capacity, and how they drive NBs through temporal windows and series of programmed asymmetric division, which gradually reduces their stemness identity in favor of neural differentiation, resulting in appropriate lineage progression. In the first project, we conducted a forward genetic screen in Drosophila embryos, aimed at isolating genes involved in regulation of neural proliferation and specification, at the single cell resolution. By taking advantage of the restricted expression of the neuropeptide FMRFa in the last-born cell of the NB lineage 5-6T, the Ap4 neuron, we could monitor the entire lineage progression. This screen succeeded in identifying 43 novel genes controlling different aspects of CNS development. One of the genes isolated, Ctr9, displayed extra Ap4/FMRFa neurons. Ctr9 encodes a component of the RNA polymerase II complex Paf1, which is involved in a number of transcriptional processes. The Paf1C, including Ctr9, is highly conserved from yeast to human, and in the past couple of years, its importance for transcription has become increasingly appreciated. However, studies in the Drosophila system have been limited. In the screen, we isolated the first mutant of Drosophila Ctr9 and conducted the first detailed phenotypic study on its function in the Drosophila embryonic CNS. Loss of function of Ctr9 leads to extra NB numbers, higher proliferation ratio and lower expression of neuropeptides. Gene expression analysis identified several other genes regulated by Ctr9, which may explain the Ctr9 mutant phenotypes. In summary, we identified Ctr9 as an essential gene for proper CNS development in Drosophila, and this provides a platform for future study on the Drosophila Paf1C. Another interesting gene isolated in the screen was worniou (wor), a member of the Snail family of transcription factors. In contrast to Ctr9, whichdisplayed additional Ap4/FMRFa neurons, wor mutants displayed a loss of these neurons. Previous studies in our group have identified many genes acting to stop NB lineage progression, but how NBs are pushed to proliferate and generate their lineages was not well known. Since wor may constitute a “driver” of proliferation, we decided to study it further. Also, we identified five other transcription factors acting together with Wor as pro-proliferative in both NBs and their daughter cells. These “drivers” are gradually replaced by the previously identified late-acting “stoppers.” Early and late factors regulate each other and the cell cycle, and thereby orchestrate proper neural lineage progression.

  • Lövgren, Karin
    Umeå universitet, Demografiska databasen.
    Review of: Josephine Dolan & Estella Tincknell (eds.) (2012). Aging Femininities: Troubling Representations. Newcastle: Cambridge Scholars, 248 pp. ISBN 1 4438 3883 7 (hardback)2013In: International Journal of Ageing and Later Life, ISSN 1652-8670, E-ISSN 1652-8670, Vol. 8, no 1, 145-148 p.Article, book review (Other academic)
  • Lövgren, Karin
    Umeå universitet, Demografiska databasen.
    Squirrels and nostalgia: About wardrobe collections of older women2015In: Ageing, culture and identity / [ed] Lena Karlsson, Marianne Liliequist, Anna Sofia Lundgren, Karin Lövgren & Angelika Sjöstedt Landén, Umeå: Umeå University , 2015, 95-120 p.Chapter in book (Refereed)
    Abstract [en]

    The focus in this article has been on how older women, between 62 and 94 years old, talk of their wardrobe collections. The key questions guiding the analyses of the women’s narratives have been: how did they describe their wardrobe collections; how did they talk of sorting through their garments and organising them; and how did they explain clothes kept but no longer used. The aim has been to let the women’s voices be heard and to give their perspective. Sorting through the wardrobe was an ongoing task, where some felt burdened by owning too many items of clothing, whereas others talked of the importance of remembering through items kept. Garments are like materialised photo albums, loaded with memories. Several informants showed a pragmatic side, emphasising that it was important that garments were put to use and not wasted. References to utility and thrift intersected with emotional ones. The informants used self-distancing descriptions, jokingly referring to themselves as ‘squirrels’ or nostalgic, reluctant to sort through their often substantial clothes collections and throw things away. Clothes also represented the pleasure inherent in the aesthetic work of combining outfits and making an effort to wear something appropriate for each different occasion.

  • Public defence: 2017-03-09 10:00 De Geersalen, Geovetenskapens hus, Stockholm
    Todorov, Ivo
    Stockholm University, Faculty of Social Sciences, Department of Psychology.
    Individual Differences in Multitasking: Support for Spatiotemporal Offloading2017Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    In both the private and work spheres, multitasking among three or more activities has become and is continuing to evolve as a pervasive element of everyday life, and recent technological advances only seem to be exacerbating the process. Despite attempts to understand the mental processes that let humans successfully multitask, little is known about the functional cognitive level at which these mental processes take place. This thesis makes a case for the involvement of spatial ability (among other cognitive abilities) in successful multitasking behavior. It focuses on the importance of the cognitive off-loading of executive control demands onto spatial ability, due to the inherent complexity of relationships between task goals and deadlines in multitasking scenarios. Importantly, it presents a working hypothesis—the spatiotemporal hypothesis of multitasking—as a tool for making specific predictions about multitasking performance, based on individual and sex differences in spatial ability.

    In Study 1, individual differences in spatial ability and executive functions emerged as independent predictors of multitasking performance. When spatial ability was decomposed into its subcomponents, only the coordinate (metric), but not categorical (nonmetric), processing of spatial relations was related to multitasking performance. Males outperformed females in both spatial ability and multitasking, and the effects were moderated by menstrual changes, in that sex differences in coordinate spatial processing and multitasking were observed between males and females in the luteal phase of the menstrual cycle, but not between males and females at menses. In Study II, multitasking performance reflected age- and sex-related differences in executive functioning and spatial ability, suggesting that executive functions contribute to multitasking performance across the adult life span, and that reliance on spatial skills for coordinating deadlines is reduced with advancing age. The results of Study III, in which the spatiotemporal hypothesis was directly scrutinized, suggest that the spatial disruption of multiple deadlines interferes with multitasking performance. Overall, these findings suggest that multitasking performance, under certain conditions, reflects independent contributions of spatial ability and executive functioning. Moreover, the results support the distinction between categorical and coordinate spatial processing, suggesting that these two basic relational processes are selectively affected by female sex hormones and are differentially effective, even across the age span, in transforming and handling temporal patterns as spatial relations in the context of multitasking. Finally, fluctuations of sex hormones exhibit a modulating effect on sex differences in spatial ability and multitasking performance.

  • Public defence: 2017-03-09 13:00 Nordenskiöldsalen, Geovetenskapens hus, Stockholm
    Sommer-Houdeville, Thomas
    Stockholm University, Faculty of Social Sciences, Department of Sociology.
    Remaking Iraq: Neoliberalism and a System of Violence after the US invasion​, 2003-20112017Doctoral thesis, monograph (Other academic)
    Abstract [en]

    After the invasion of Iraq and the destruction of Saddam regime in 2003, the US administration undertook the complete remaking of Iraq as a national-state. The initial steps of the US administration were the quasi eradication of the old Iraqi State. Then, this nation-building endeavor has been based on a federal constitution promoting an Ethno- sectarian power sharing and the attempt to transform what was once a centralized economy into a comprehensive market driven society. However, the post-2003 period had been marked by the rising of identity politics, the constant delegitimisation of the new political order and successive episode of massive violence. Obviously, the question of violence and its apex in 2006-2007, is central to understand the post-2003 period in Iraq. For the first time in Iraqi history, waves of ethno-sectarian violence seriously challenged the possibility of a common life for all the diverse components of the Iraqi society. The Iraqi nation seemed to have been consumed in an existential conflict between components and communal identifications once relatively integrated. Therefore, there is a need to render an analytical account of the aggressive rise of identity politics, the outbreak of violence and finally the episodes of civil war in 2005-2007 in Iraq.

    This study aims to answer these questions by tracking the different political and social processes that have been at play during the American occupation of Iraq and that lead to the events of 2005-2007. In order to do so, I will consider the dynamical relations that link political institutions, violence and self-identifications in regard to the Iraqi society and Iraq as a National State. This research is built as a case study based mostly on qualitative analysis and the collection of empirical data, interviews, and fieldwork observations as well as primary and secondary sources. I set out to identify actors and processes and determine a complex chain of reactions (a trajectory) that led to the current state of affairs in Iraq. This trajectory could be summarized in few sentences:

    The destruction of the old Iraqi State and the brutal implementation of Neo-liberal rationality and re- regulations policies by the US occupation ended into a dystopian economy and the creation of an "absent state" (Davis, 2011). Since its very first day, this US lead nation-building endeavor has been flawed by a complete lack of legitimacy and its substitution with coercion by the US and the New Iraqi "State" security apparatus. Meanwhile, the imposition and the institutionalization of Ethno-sectarian affiliations as a principle of political legitimacy contributed to transform the different communities of Iraq into main avenues for access and control of scarce economic and political resources. In a way, US occupation and new Iraqi elites were deflecting the political question of right following a movement similar to what Mamdani and Brown describe as a "Culturalisation of Politics" (2004, 2006). The result was a failure to establish a legitimate and functional political and economic order. This led to the rise of a System of Violence, organized around networks of violence. Within the System of Violence, Culturalisation of Politics would be translated into Culturalisation of Violence. This would contribute to the sectarianisation of space in Baghdad and other localities of Iraq, as well as "manufacturing" (Gregory, 2008) and essentialising sectarian representations and identifications within the society.

  • Pechlivanidis, Ilias
    et al.
    SMHI, Research Department, Hydrology.
    Arheimer, Berit
    SMHI, Research Department, Hydrology.
    Donnelly, Chantal
    SMHI, Research Department, Hydrology.
    Hundecha, Yeshewatesfa
    SMHI, Research Department, Hydrology.
    Huang, S.
    Aich, V.
    Samaniego, L.
    Eisner, S.
    Shi, P.
    Analysis of hydrological extremes at different hydro-climatic regimes under present and future conditions.2016In: Climatic Change, ISSN 0165-0009, E-ISSN 1573-1480Article in journal (Refereed)
  • Scheepers, Gerhard
    et al.
    RISE - Research Institutes of Sweden, Bioeconomy, Biobased Materials.
    Olsson, Jörgen
    RISE - Research Institutes of Sweden, Built Environment, Building Technology.
    Lycken, Anders
    RISE - Research Institutes of Sweden, Bioeconomy, Biobased Materials.
    Grahn, Thomas
    RISE - Research Institutes of Sweden, Bioeconomy, Papermaking and Packaging.
    Lundqvist, Sven-Olof
    RISE - Research Institutes of Sweden, Bioeconomy, Biorefinery and Energy.
    Hagman, Olle
    Luleå Tekniska Universitet, Luleå, Sweden.
    Hållfasthetsbestämning av virke med en NIR-kamera2017Report (Other academic)
    Abstract [sv]

    SP, Innventia och Luleås Tekniska Universitet har genomfört en förstudie där man undersökte om nära-infrarött (NIR) data kan bidra till säkrare hållfasthetsbestämning av virke. För att göra det behövdes förutom NIR-data, dels data som konventionellt används i sågverk för att göra hållfasthets-uppskattningar, dels referensdata från mekanisk provning.

    Följande data samlades in från 100 granplankor med dimensionen 3600*150*45 mm3:

    1. mått, vikt, och därmed densitet,

    2. egenfrekvenser via dynamisk excitering,

    3. högupplösta NIR-bilder på 2 flatsidor av varje planka,

    4. RGB och fibervinkeldata från flat- och kantsidorna,

    5. röntgentomografibilder,

    6. förstörande böjtestdata, med bestämning av lokal och global E-modul, och

    7. kvalitativ inventering av brottyp och kvistposition.

     

    Databasen är i sig en värdefull resurs och en god grund för fortsatt forskning och utveckling mot kun-skap och tillämpningar baserat på information som hittills inte utvärderats och nyttjats.

    Virkesegenskaper som påverkar hållfasthet, såsom tjurved, kunde identifieras och visualiseras. Andra egenskaper som är viktiga hållfasthetsindikatorer, såsom egenfrekvens och densitet, kunde predikteras med multivariata modeller baserade på NIR-spektraldata. Inledande modellförsök visar att det går att prediktera global E-modul med multivariata modeller baserade på NIR-spektraldata med ungefärlig samma precision som industriell hållfasthetsbedömning med dynamisk excitering. De NIR-data som användes i modelleringen var dock bara medelvärden över hela plankan. Därför finns det god potential för bättre prediktion med mer riktade variabler, som speglar de spatiala variationerna i varje planka, t.ex. runt kvistar, vilket blir ämnet för ett eventuellt fortsättningsprojekt.

    Projektet finansierades av Norrskogs Forskningsstiftelse, Stiftelsen Åforsk, Träcentrum Norr, och Södra Skogsägarnas Stiftelse för Forskning, Utveckling och Utbildning. Individer som medverkade i projektet inkluderar Gerhard Scheepers, Jörgen Olsson, Anders Lycken, Sven-Olof Lundqvist och Thomas Grahn (RISE Bioekonomi); och Olle Hagman (LTU). RemaSawco och JGA i Linneryd hjälpte också med insamlingen av fibervinkeldata.

  • Aaboud, M.
    et al.
    Bergeås, Elin Kuutmann
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Brenner, Richard
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Ekelöf, Tord
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Ellert, Mattias
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Ferrari, Arnaud
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Gradin, P. O. Joachim
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Madsen, Alexander K
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Öhman, Henrik
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Pelikan, Daniel
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Rangel-Smith, Camilla
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Zwalinski, L.
    Search for pair production of Higgs bosons in the b¯bb¯b final state using proton-proton collisions at √s=13  TeV with the ATLAS detector2016In: Physical Review D. Particles and fields, ISSN 0556-2821, E-ISSN 1089-4918, Vol. 94, 052002Article in journal (Refereed)
    Abstract [en]

    A search for Higgs-boson pair production in the b¯bb¯b final state is carried out with 3.2  fb−1 of proton-proton collision data collected at √s=13  TeV with the ATLAS detector. The data are consistent with the estimated background and are used to set upper limits on the production cross section of Higgs-boson pairs times branching ratio to b¯bb¯b for both nonresonant and resonant production. In the case of resonant production of Kaluza-Klein gravitons within the Randall-Sundrum model, upper limits in the 24 to 91 fb range are obtained for masses between 600 and 3000 GeV, at the 95% confidence level. The production cross section times branching ratio for nonresonant Higgs-boson pairs is also constrained to be less than 1.22 pb, at the 95% confidence level.

  • Wiberg, Agne
    Umeå University, Faculty of Medicine.
    Function of the chorda tympani before and after operation for clinical otosclerosis1971Doctoral thesis, monograph (Other academic)
  • Aaboud, M.
    et al.
    Bergeås, Elin Kuutmann
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Brenner, Richard
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Ekelöf, Tord
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Ellert, Mattias
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Ferrari, Arnaud
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Gardin, P. O. Joakim
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Madsen, Alexander
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Öhman, Henrik
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Pelikan, Daniel
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Rangel-Smith, Camilla
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Zwalinski, L.
    Search For The Standard Model Higgs Boson Produced Byvector-Boson Fusion And Decaying To Bottom Quarks In Roots=8Tev Pp Collisions With The Atlas Detector2016In: Journal of High Energy Physics (JHEP), ISSN 1126-6708, E-ISSN 1029-8479, no 11, 112Article in journal (Refereed)
    Abstract [en]

    A search with the ATLAS detector is presented for the Standard Model Higgs boson produced by vector-boson fusion and decaying to a pair of bottom quarks, using 20.2 fb−1 of LHC proton-proton collision data at s√=8s=8 TeV. The signal is searched for as a resonance in the invariant mass distribution of a pair of jets containing b-hadrons in vector-boson-fusion candidate events. The yield is measured to be −0.8 ± 2.3 times the Standard Model cross-section for a Higgs boson mass of 125 GeV. The upper limit on the cross-section times the branching ratio is found to be 4.4 times the Standard Model cross-section at the 95% confidence level, consistent with the expected limit value of 5.4 (5.7) in the background-only (Standard Model production) hypothesis.

  • Brolin, Magnus
    et al.
    RISE - Research Institutes of Sweden, Safety and Transport.
    Fahnestock, Jesse
    RISE - Research Institutes of Sweden, Built Environment.
    Rootzen, Johan
    Chalmers, Gothenburg, Sweden.
    Industry’s Electrification and Role in the Future Electricity System: A Strategic Innovation Agenda2017Report (Other academic)
    Abstract [en]

    Trends visible today suggest that a transformation of industrial firms’ use of electricity, and a change in their role in the electricity system, could take place as a part of a long-term transition towards a low-carbon Swedish economy. The shape of these changes remains highly uncertain, but electrification, flexible electricity use, and emerging roles in the electricity system for industrial consumers are interdependent developments and should be investigated from a holistic perspective where possible.

    Swedish industry is relatively energy intensive, and has stood for roughly 37% of the country’s electricity use for a decade. The Swedish Energy Agency’s Vivace scenario suggests that this share could expand, despite improved efficiency, to 49% by 2050. The increased use of electricity to reduce greenhouse gas emissions and take advantage of market conditions would play out differently in different sectors, and depending on the development of different technologies. However large-scale opportunities may exist in the long-term, such as using electrolysis to produce hydrogen for replacing coke in the iron and steel industry and as a feedstock in the petrochemical industry.

    Smaller-scale but still important options for electrification include electric/hybrid boilers in the pulp and paper industry and a variety of electro-thermal technologies for heating and drying.

    Increased use of electricity in industry is likely to go hand-in-hand with increasingly flexible use of electricity. In some cases, such as the production of hydrogen or process media, this flexibility will be in-built since the storable energy carriers create new production planning options. In other cases, new approaches to planning, process design, and the use of automation may allow firms to match electricity use to favourable market conditions.

    The expected high penetration of intermittent renewable electricity in the power system may create incentives for this flexibility. These incentives should appear on the wholesale market, in the form of high- and low-price periods. They may also appear via new capacity markets, or through markets for new system services needed to support stability in both transmission and distribution networks. The frameworks and regulations needed to create these markets are not yet in place, and firms will also need to develop technical and management capabilities to take advantage of them.

  • Eriksson, Marie
    et al.
    Swedish Environmental Protection Agency . Executive, Länsstyrelser, Länsstyrelsen Skåne.
    Jarlman, Amelie
    Egenföretagare.
    Kiselalgsundersökning i Trydeån, Fyleån och Klingavälsån 2015: Delrapport: UC4LIFE - "E2. Monitoring" och regional miljöövervakning - kiselalger 20152016Report (Other academic)
    Abstract [sv]

    Föreliggande rapport utgör en delrapportering inom övervakningsdelen av UC4LIFE-projektet, som "genom åtgärder för den tjockskaliga målarmusslan ska ge friskare åar". Undersökningen utgör även en del av den regionala över-vakningen av kiselalger 2015. Inom UC4LIFE:s skånska projektområden Fyleån och Klingavälsån, tillhörande Nybroåns respektive Kävlingeåns vatten-system, har totalt fyra lokaler upp- respektive nedströms åtgärd undersökts med avseende på kiselalger 2013-2015. I Fyleån nedströms åtgärd togs prov även 2012 (inom regional miljöövervakning). Dessutom har Trydeån upp-ströms sammanflödet med Fyleån samt Fyleån nedströms sammanflödet med Trydeån undersökts 2012 och 2015.

    Kiselalger är oftast den största gruppen av de mikroskopiska organismer som går under samlingsnamnet påväxtalger, eftersom de sitter fast på bland annat stenar och vattenväxter. Olika arter av kiselalger har olika toleranskrav med avseende på t.ex. näring, förorening och surhet, och artsammansättning-en speglar därför vattnets kvalitet.

    Huvudsyftet med denna delrapportering är att tillgängliggöra resultaten från kiselalgsundersökningen i Trydeån, Fyleån och Klingavälsån. Kiselalgsun-dersökningen ingår som en del i övervakningen (UC4LIFE, E.2 Monitoring) för att ge en bild av kiselalgssamhället före och efter restaureringsåtgärd. Fyleån har återmeandrats sommaren 2013 och Klingavälsån under hösten 2014.

    Jarlman Konsult AB har, på uppdrag av Länsstyrelsen i Skåne län, utfört kiselalgsundersökningen i samarbete med länsstyrelsepersonal. Fältarbetet utfördes 11 september 2015 av Marie Eriksson och Lars Risinger (Länsstyrel-sen i Skåne län). Amelie Jarlman har analyserat och bearbetat resultaten av kiselalgerna samt skrivit huvuddelen av rapporten. Samma index och bedöm-ningsgrunder som används inom vattenförvaltningsarbetet och regional miljö-övervakning, för att bedöma status utifrån kiselalgssamhället samt ekologisk status, har använts här. Projektet har delvis bekostats med medel från UC4LIFE-projektet, men till största delen av Havs- och vattenmyndigheten inom ramen för regional miljöövervakning, vattenförvaltningsarbetet och 1:12 anslaget.

  • Huss-Danell, Kerstin
    Umeå University, Faculty of Science and Technology, Department of Plant Physiology.
    Nitrogen fixation in the lichen Stereocaulon paschale1979Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    The thesis is a summary and discussion of six papers.

    The purpose of the investigation was to study the influence of (i) environmental factors and (ii) the physiological condition of the thallus on nitrogen fixation in the lichen Stereocaulon paschale (L.) Fr. The nitrogen input to the site, a sparsely stocked pine forest in northern Sweden, was also studied. Nitrogen fixation (nitrogenase activity) was measured as acetylene reduction both in the field and in the laboratory. Usually intact lichen thalli were used, but also excised cephalodia were studied.

    All nitrogenase activity was located in the external cephalodia containing the blue-green alga Stigonema sp. There was always a reduction in nitrogenase activity when the cephalodia were quantitatively excised from the thallus. Moisture was found to be the most important environmental factor in the field during the snow free part of the year. At the site, with 14 % of the ground covered by S. paschale3 the yearly nitrogen fixation was estimated to c. 0.1 g nitrogen per m^. The lichen thalli could withstand several months in a very dry condition and at a low temperature without significant decrease in nitrogenase activity. A higher capacity for nitrogenase activity was found in lichen thalli collected from bare ground than in thalli collected under the snow. The light conditions before as well as during the nitrogenase activity measurements affected the nitrogenase activity. Thalli incubated with acetylene in the dark had only c. two thirds of their activities in the light. Lichen thalli pretreated in the light showed increased nitrogenase activities, probably due to raised content of carbohydrates available for nitrogenase activity. The necessary energy for nitrogenase activity is supplied by either oxidative phosphorylation or photophosphorylation. 

  • Skiljic, Dragana
    et al.
    Nilsson, Staffan
    Petersen, Anne
    Karlsson, Jan-Olof
    Behndig, Anders
    Umeå University, Faculty of Medicine, Department of Clinical Sciences, Ophthalmology.
    Kalaboukhova, Lada
    Zetterberg, Madeleine
    Oestradiol levels and superoxide dismutase activity in age-related cataract: a case-control study2016In: BMC Ophthalmology, ISSN 1471-2415, E-ISSN 1471-2415, Vol. 16, 210Article in journal (Refereed)
    Abstract [en]

    Background: It has been suggested that the higher prevalence of cataract in women is caused by a withdrawal effect of oestrogen at menopause. In vitro studies have demonstrated protection of serum oestradiol (E2) against oxidative stress through upregulation of antioxidant enzymes, including superoxide dismutase (SOD). The purpose of the present study was to investigate E2 levels and SOD erythrocyte activity in patients with age-related cataract.

    Methods: The studied subjects consisted of 103 patients with age-related cataract and 22 controls. Cataracts were classified as nuclear, cortical, or posterior subcapsular. Blood samples were collected and data on smoking, hormonal use, diabetes and age at menarche/menopause was obtained for all individuals. Serum oestradiol analyses were performed with radioimmunoassay (RIA) and SOD activity was measured in erythrocyte lysates.

    Results: A negative correlation between age and E2 concentration was seen in a linear regression analysis. No correlation was seen between SOD activity and age or gender and no correlation between E2 levels and SOD activity was found using multiple linear regression. The mean level of E2 for all male subjects was 50.1 +/- 16.3 pmol/L, significantly higher compared to 13.8 +/- 11.8 pmol/L for postmenopausal women.

    Conclusion: The present study does not support a role for E2-induced effects on SOD in cataract formation. The findings of higher E2 levels in men than in postmenopausal women may suggest that decreased oestrogen at menopause is partially responsible for the gender-related difference in cataract prevalence. However, the latter can only be verified through prospective randomized trials using hormonal replacement therapy.

  • Eriksson, Marie
    et al.
    Executive, Länsstyrelser, Länsstyrelsen Skåne.
    Jarlman, Amelie
    Egenföretagare.
    Sammanställning av kiselalgsundersökningar i vattendrag runt Ivösjön 2012-20142016Report (Other academic)
    Abstract [sv]

    Föreliggande rapport utgör en sammanställning av de lokaler som har undersökts med avseende på kiselalger i vattendrag kring Ivösjön, Skräbeåns vattensystem, under perioden 2012-2014.

    Kiselalger är oftast den största gruppen av de mikroskopiska alger som går under samlingsnamnet påväxt, eftersom de sitter fast på bland annat stenar och vattenväxter. Olika arter av kiselalger har olika toleranskrav med avseende på t.ex. näring, förorening och surhet, och artsammansättningen speglar därför vattnets kvalitet.

    Huvudsyftet med denna sammanställning är att få en samlad bild av statusen med avseende på kiselalgssamhället i framförallt de vattendrag som rinner till Ivösjön, men också i det vattendrag som rinner ut från sjön. Undersökningarna ingår även i den regionala miljöövervakningen 2014.

    Sammanställningen av kiselalgsresultaten 2012-2014 har initierats och till största delen bekostats av Ivösjökommittén. Jarlman Konsult AB har på uppdrag av Ivösjökommittén genomfört sammanställningen, tillsammans med Marie Eriksson Länsstyrelsen Skåne, inom ramen för regional miljöövervakning och vattenförvaltningsarbetet. De flesta kiselalgsprover som redovisas för 2012-2014 har tagits av Marie Eriksson, med hjälp av medlemmar i Skräbeåns vattenråd, Skräbeåns vattenvårdskommitté och Bromölla kommun. Resterande prov har tagits inom ramen för Skräbeåns recipientkontroll. Amelie Jarlman har analyserat samtliga prov. Ivösjökommitténs rapport har omarbetats layoutmässigt av Marie Eriksson, för att passa i Länsstyrelsens rapportserie.

  • Eriksson, Marie
    et al.
    Executive, Länsstyrelser, Länsstyrelsen Skåne.
    Jarlman, Amelie
    Egenföretagare.
    Kiselalgsundersökning i vattendrag i Skåne 20152016Report (Other academic)
    Abstract [sv]

    Föreliggande rapport redovisar den regionala övervakningen av kiselalger i Skåne län 2015. Totalt har 17 lokaler undersökts, varav 6 inom UC4LIFE och 11 inom miljöövervakning/screening. På tre av de sistnämnda lokalerna har även jämförelser med bekämpningsmedelsanalyser gjorts. Kiselalger är oftast den största gruppen av de mikroskopiska organismer som går under samlings-namnet påväxtalger, eftersom de sitter fast på bland annat stenar och vatten-växter. Olika arter av kiselalger har olika toleranskrav med avseende på t.ex. näring, förorening och surhet, och artsammansättningen speglar därför vatt-nets kvalitet.

    Jarlman Konsult AB har på uppdrag av Länsstyrelsen Skåne utfört kisel-algsundersökningen i samarbete med länsstyrelsepersonal. Fältarbetet utfördes under september 2015 av Marie Eriksson, med hjälp av Pardis Pirzadeh och Lars Risinger (Länsstyrelsen Skåne) samt Birthe Bruun. Amelie Jarlman har utfört kiselalgsanalyserna, sammanställt resultaten och skrivit den delen av rapporten. Marie Eriksson har bearbetat analysresultaten av bekämpningsme-del och deras eventuella koppling till andelen missbildade kiselalgsskal, skrivit övriga delar av rapporten, tagit fram kartfigurer samt slutredigerat rapporten. Undersökningen har till största delen bekostats av Havs- och vattenmyndig-heten inom ramen för regional miljöövervakning, vattenförvaltningsarbetet och 1:12-anslaget samt i viss mån av medel från UC4LIFE-projektet.

  • Kristensen, Lars
    University of Skövde, School of Informatics. University of Skövde, The Informatics Research Centre.
    Bicycle cinema: Machine identity and the moving image2017In: Thesis Eleven, ISSN 0725-5136, E-ISSN 1461-7455, Vol. 138, no 1, 65-80 p.Article in journal (Refereed)
    Abstract [en]

    This paper examines the relationship between identities and the bicycle as portrayed in films. The analysis finds that taking the viewpoint of the bicycle emancipates the bicycle from being subjected to closure, as the constructionists would have it, and thus articulates the differences with which the bicycle can communicate to its rider. The paper examines the bicycle as depicted in three films: Premium Rush  (Davis Koepp, 2012), A Sunday in Hell  (Jørgen Leth, 1977) and Life on Earth  (Abderrahmane Sissako, 1998). It engages with the concept of ‘interpretative flexibility’ and the development of the bicycle, as examined by Wiebe Bijker and others, and argues that the interpretative flexibility of bicycles does not cease just because the high-wheeler was abandoned and the ‘safety’ bicycle was universally accepted. The fight for the role of the bicycle continues and the bicycle is subject to constant transformations in order to reconstruct it according to human needs. Andrew Feenberg’s modified constructivism is applied to re-examine the technical development of the bicycle, claiming that technology is dependent on specific social structures as well as human agency. The paper argues that just as social structures are negotiable and unfixed at any point in time, the bicycle too is never neutral but remains negotiable and unfixed. Consequently, since the bicycle constantly ‘speaks’ back to the user, there is never closure in the technical development of the bicycle. Drawing on the writings of Bruno Latour and the Deleuzian idea of assemblages, the bicycle and its rider are considered as an organic entity that is constantly forged and un-forged. Understanding the rhetoric of the bicycle machine helps the convergence of a bicycle becoming with becoming a rider, marking the bicycle as equal to its rider. Viewed in this way, the hierarchy of agency collapses and a crystallization emerges out of the rider and bicycle entwinement.

  • Abdollahpour, Nosrat
    et al.
    Department of Occupational Health Engineering, Tabriz University of Medical Sciences Tabriz, Iran.
    Helali, Faramarz
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Human Work Science.
    Implementing 'Awakened Need of Change' for Applying Ergonomics to Work System with Macroergonomics Approach in an Industrially Derveloping Country and its Meta-Reflection2016In: Journal of Ergonomics, ISSN 2165-7556, Vol. 6, no 6, 182Article in journal (Refereed)
  • Mao, Hailiang
    et al.
    Umeå University, Faculty of Science and Technology, Umeå Plant Science Centre (UPSC). Umeå University, Faculty of Science and Technology, Department of Plant Physiology.
    Nakamura, Moritaka
    Viotti, Corrado
    Grebe, Markus
    Umeå University, Faculty of Science and Technology, Umeå Plant Science Centre (UPSC). Umeå University, Faculty of Science and Technology, Department of Plant Physiology. Institute of Biochemistry and Biology, Plant Physiology, University of Potsdam, Germany.
    A Framework for Lateral Membrane Trafficking and Polar Tethering of the PEN3 ATP-Binding Cassette Transporter2016In: Plant Physiology, ISSN 0032-0889, E-ISSN 1532-2548, Vol. 172, no 4, 2245-2260 p.Article in journal (Refereed)
    Abstract [en]

    The outermost cell layer of plants, the epidermis, and its outer (lateral) membrane domain facing the environment are continuously challenged by biotic and abiotic stresses. Therefore, the epidermis and the outer membrane domain provide important selective and protective barriers. However, only a small number of specifically outer membrane-localized proteins are known. Similarly, molecular mechanisms underlying the trafficking and the polar placement of outer membrane domain proteins require further exploration. Here, we demonstrate that ACTIN7 (ACT7) mediates trafficking of the PENETRATION3 (PEN3) outer membrane protein from the trans-Golgi network (TGN) to the plasma membrane in the root epidermis of Arabidopsis (Arabidopsis thaliana) and that actin function contributes to PEN3 endocytic recycling. In contrast to such generic ACT7-dependent trafficking from the TGN, the EXOCYST84b (EXO84b) tethering factor mediates PEN3 outer-membrane polarity. Moreover, precise EXO84b placement at the outer membrane domain itself requires ACT7 function. Hence, our results uncover spatially and mechanistically distinct requirements for ACT7 function during outer lateral membrane cargo trafficking and polarity establishment. They further identify an exocyst tethering complex mediator of outer lateral membrane cargo polarity.

  • Olsén Sørensen, Nina
    et al.
    Copenhagen Univ Hosp, Res Unit Womens & Childrens Hlth, Juliane Ctr Women Children & Reprod, Rigshosp, Sect 7821,Blegdamsvej 9, DK-2100 Copenhagen, Denmark.;Copenhagen Univ Hosp, Dept Obstet, Rigshosp, Blegdamsvej 9, DK-2100 Copenhagen, Denmark..
    Marcussen, Signe
    Metropolitan Univ Coll, Midwifery Program, Sigurdsgade 26, DK-2200 Copenhagen, Denmark..
    Grønbæk Backhausen, Mette
    Copenhagen Univ Hosp, Res Unit Womens & Childrens Hlth, Juliane Ctr Women Children & Reprod, Rigshosp, Sect 7821,Blegdamsvej 9, DK-2100 Copenhagen, Denmark.;Zealand Univ Hosp, Dept Gynecol & Obstet, Syghusvej 10, DK-4000 Roskilde, Denmark..
    Juhl, Mette
    Metropolitan Univ Coll, Midwifery Program, Sigurdsgade 26, DK-2200 Copenhagen, Denmark.;Univ Copenhagen, Dept Publ Hlth, Oster Farimagsgade 5, DK-1014 Copenhagen, Denmark..
    Schmidt, Lone
    Univ Copenhagen, Dept Publ Hlth, Oster Farimagsgade 5, DK-1014 Copenhagen, Denmark..
    Tyden, Tanja
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Women's and Children's Health, International Maternal and Child Health (IMCH).
    Hegaard, Hanne Kristine
    Copenhagen Univ Hosp, Res Unit Womens & Childrens Hlth, Juliane Ctr Women Children & Reprod, Rigshosp, Sect 7821,Blegdamsvej 9, DK-2100 Copenhagen, Denmark.;Copenhagen Univ Hosp, Dept Obstet, Rigshosp, Blegdamsvej 9, DK-2100 Copenhagen, Denmark..
    Fertility awareness and attitudes towards parenthood among Danish university college students2016In: Reproductive Health, ISSN 1742-4755, E-ISSN 1742-4755, Vol. 13, 146Article in journal (Refereed)
    Abstract [en]

    Background: Postponing parenthood has steadily increased during the past decades in Western countries. This trend has affected the size of families in the direction of fewer children born per couple. In addition, higher maternal age is associated with an increased risk of pregnancy-related complications such as prematurity and foetal death, while higher paternal age increases the risk of miscarriage and affects time-to-pregnancy. Hence, understanding the circumstances and reflections that influence the decision is greatly needed and little is known about potential gender difference influencing the choice. The aim was to investigate attitudes towards parenthood, intentions for childbirth and knowledge about fertility issues among men and women. Methods: We conducted a cross-sectional study based on a validated 49-item questionnaire among students, who attended selected mandatory lectures at a Danish university college in February to April 2016. The participation rate was 99%, and 517 completed the questionnaire. Results: Though the majority of all participants wished to have children in the future (> 86%), there was significant difference between the genders (p = 0.002). Women rated having children to be more important than men did (p < 0.001), while men rated higher the likelihood of abstaining from having children if faced with infertility (p = 0.003). Knowledge about fertility issues was similar between genders including poor knowledge about the age-related decline in female fertility. While women found it more important to have children before being 'too old' (p = 0.04), still more than 40% of all respondents intended to have their last child after the age of 35 years. For both genders the most important prerequisite for parenthood was having a partner to share responsibility with. Perceived or experienced life changes related to parenthood were generally positive such as personal development. Conclusion: The majority of respondents wished to have children, but many desired to have these after the biological decline in female fertility. The moderate knowledge level among both genders uncovered in this study is of concern. Future research should address the potential link between fertility knowledge and planning of parenthood. We may benefit from intervention studies examining the effect of routine preconception care.

  • Röyne, Frida
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Life Cycle Assessment of BioZEment – concrete production based on bacteria2017Report (Other academic)
    Abstract [en]

    The project BioZEment (University of Oslo 2014) was carried out 2014-2017, with the aim of developing a concrete product that complies with today’s standards of strength and durability, but without using the calcination process. Instead of thermally decomposing the limestone to make reactive lime, the project strived towards finding a low-temperature method for partial dissolution and re-precipitation of the mineral surfaces to make the limestone particles bind to each other, and thereby creating an alternative to conventional concrete with significantly lower climate impact. Modern biotechnology was applied to find microorganisms that could perform the dissolution and precipitation in a controlled manner. The project also included detailed studies of how cementation takes place on the micro- and nano-scale, in combination with microbiology and biotechnology.

    In order to ensure that the project was striving toward a product that truly could be seen as a sustainable alternative to today’s concrete, both the method life cycle assessment (LCA) and studies of ethical, legal and societal aspects of the process were applied. This report presents the results of the LCA.

    The LCA was carried out by SP Technical Research Institute of Sweden. The project was led by the University of Oslo. Other project partners, all based in Norway, were the Norwegian University of Science and Technology (NTNU), the research institute SINTEF, the consultancy company Dr. tech. Olav Olsen, and the research institute SIFO.

    Results indicate that the BioZEment has the potential to reduce climate impact considerably, in a range of 70-85%. For other environmental impact categories (ozone depletion potential, eutrophication potential, and land use, and for the higher acidification estimate), the BioZEment has a higher environmental impact than conventional concrete. The impact levels are, however, not severe. Nevertheless, ammonia emissions (causing eutrophication and acidification) should be monitored. In the further development of the BioZEment, specific attention should be paid to:

    • Reducing water consumption

    • Establishing systems for waste water treatment

    • Minimizing urea demand

    • Minimizing ammonia emissions and/or capture ammonia emissions

     

    Key words: life cycle assessment, concrete, cement, bacteria, climate

  • Public defence: 2017-03-10 10:00 Ka-Sal C (Sal Sven-Olof Öhrvik), Kista, Stockholm
    Kargarrazi, Saleh
    KTH, School of Information and Communication Technology (ICT), Elektronics, Integrated devices and circuits.
    High Temperature Bipolar SiC Power Integrated Circuits2017Doctoral thesis, monograph (Other academic)
    Abstract [en]

    In the recent decade, integrated electronics in wide bandgap semiconductor technologies such as Gallium Nitride (GaN) and Silicon Carbide (SiC) have been shown to be viable candidates in extreme environments (e.g high-temperature and high radiation). Such electronics have applications in down-hole drilling, automobile-, air- and space- industries. In this thesis, integrated circuits (ICs) in bipolar 4H-SiC for high-temperature power applications are explored. In particular, device modelling, circuit design, layout design, and measurements are discussed for a range of circuits including operational amplifiers, linear voltage regulators, drivers for power switches, and power converters with integrated control. The circuits were demonstrated and tested from 25 °C up to 500 °C. Circuit design in bipolar SiC technology involves challenges such as the fabrication process’ uncertainties and incomplete models of the devices. Furthermore, high temperature modelling of the integrated devices is needed for circuit design and simulation. From the circuit design viewpoint, techniques such as negative-feedback, temperature-insensitive biasing, buffering and Darlington stages, and amplifiers with fewer gain stages, were shown to be useful for high-temperature IC design in bipolar SiC. It is shown that the linear voltage regulator can be improved by using a tailored high-current lateral Darlington power device in the same fabrication process. This results in a high temperature high current power supply solution. Moreover, the drivers can be improved by design in order to provide higher voltage levels and peak currents for the power devices (bipolar and MOSFET based). In addition, a DC-DC converter with fully integrated hysteretic control is designed taking advantage of several sub-circuits such as operational amplifier, Schmitt trigger and driver for the power switch. This study is followed by preliminary experimental results for the converter and controller IC.

  • Ando, Michihito
    et al.
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Social Sciences, Department of Economics. National Institute of Population and Social Security Research, Japan.
    Dahlberg, Matz
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Social Sciences, Institute for Housing and Urban Research.
    Engström, Gustav
    The Beijer Institute of Ecological Economics.
    The Risks of Nuclear Disaster and Its Impact on Housing Prices2017Report (Other academic)
    Abstract [en]

    Using a data set on housing sales transactions we explore the potentialeeffct of the Fukushima disaster on housing prices in Sweden. Incontrast to most earlier findings in other countries we do not find anydisproportionate effect from the Fukushima disaster on housing prices in vicinity of nuclear power plants in Sweden.

  • Haugen, Katarina
    et al.
    Umeå University, Faculty of Social Sciences, Department of Geography and Economic History.
    Westin, Kerstin
    Umeå University, Faculty of Social Sciences, Department of Geography and Economic History.
    'Not a Problem Until it Becomes a Problem': A Qualitative Study of Values and Risks of In-house Family Ties in Swedish Workplaces2016In: Nordic Journal of Working Life Studies, ISSN 2245-0157, E-ISSN 2245-0157, Vol. 6, no 4, 67-86 p.Article in journal (Refereed)
    Abstract [en]

    In-house family ties at workplaces occur in most contexts, and are associated with both advantages and disadvantages. On the basis of 40 interviews with human resource managers at Swedish workplaces, the values and risks of in-house family ties and their importance within the workplace are analyzed jointly, thus allowing for a holistic perspective. The interviews reveal values and risks on a strategic level, for day-to-day operations, for the social work environment, and on the level of individuals. Crucially, even when in-house family ties are perceived as uncomplicated, there is a latent risk that problems might arise. The interpretation of the role of in-house family ties is also strongly related to whether they are paired with asymmetrical (vertical) power relations. It also depends heavily on the chosen perspective-that of the organization, the social work environment, the individual, or the broader society-and the perceived advantages tend to come with corresponding inverted disadvantages.

  • Public defence: 2017-02-24 13:30 Kol, Stockholm
    Svedholm, Christoffer
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
    Efficient Modelling Techniques for Vibration Analyses of Railway Bridges2017Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    The world-wide development of new high-speed rail lines has led to more stringent design requirements for railway bridges, mainly because high-speed trains can cause resonance in the bridge superstructure. Dynamic simulations, often utilising time-consuming finite element analysis (FEA), have become essential for avoiding such problems. Therefore, guidelines and tools to assist structural engineers in the design process are needed.

    Considerable effort was spent at the beginning of the project, to develop simplified models based on two-dimensional (2D) Bernoulli-Euler beam theory. First, a closed-form solution for proportionally damped multi-span beam, subjected to moving loads was derived (Paper I). The model was later used to develop design charts (Paper II) and study bridges on existing railway lines (Paper III). The model was then extended to non-proportionally damped beams (Paper IV) in order to include the effects of soil-structure interactions. Finally, the importance of the interaction between the surrounding soil and the bridge was verified by calibrating a finite element (FE) model by means of forced vibration tests of an end-frame bridge (Paper V).

    Recommendations on how to use the models in practical applications are discussed throughout the work. These recommendations include the effects of shear deformation, shear lag, train-bridge and soil-structure interactions, for which illustrative examples are provided. The recommendations are based on the assumption that the modes are well separated, so that the response at resonance is governed by a single mode.

    The results of the work show that short span bridges, often referred to as `simple´ bridges, are the most problematic with respect to dynamic effects. These systems are typically, non-proportionally damped systems that require detailed analyses to capture the `true´ behaviour. Studying this class of dynamic system showed that they tend to contain non-classical modes that are important for the structure response. For example, the bending mode is found to attain maximum damping when its undamped natural frequency is similar to that of a non-classical mode.

  • Virgin, Hillevi
    et al.
    Executive, Länsstyrelser, Länsstyrelsen Skåne.
    Persson, Karin
    Executive, Länsstyrelser, Länsstyrelsen Skåne.
    Miljögifter i grundvatten 2014-2015 Sammanfattning av resultat2016Report (Other academic)
    Abstract [sv]

    En screeningundersökning av miljögifter i grundvatten genomfördes under 2014 och 2015 i Skåne. Grundvatten från totalt 38 provtagningslokaler undersöktes med avseende på basparametrar, metaller, PAH:er, BTEX, ftalater, klorerade lösningsmedel och högflorerade ämnen (PFOS och PFOA). I 34 av 42 prover (81 %) detekterades en eller flera organiska miljögifter. Totalt påträffades 18 olika substanser av 44 analyserade (41 %). Naftalen uppmättes i låga halter i 27 av 42 prover. I två fall (Perstorp, Osby) har halter över riktvärden uppmätts när det gäller klorerade lösningsmedel. I prover från tre provtagningslokaler (Perstorp, Osby och Bjällerud) har PFOS eller PFOA detekterats. I proverna från Skurup uppmättes halter över riktvärdet för grundvatten med avseende på arsenik.

  • Pusch, Roland
    et al.
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
    Nakano, Masashi
    Yong, R.N.
    Yang, Ting
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
    Long-term function of on-ground repositories for hazardous waste: Mechanisms in cyclicdrying/wetting of top clay liners2017In: Journal of Earth Sciences and Geotechnical Engineering, ISSN 1792-9040, E-ISSN 1792-9660, Vol. 7, no 2, 45-62 p.Article in journal (Refereed)
    Abstract [en]

    Landfills of hazardous waste like radioactive rest products with low activity, or ashes from incinerated organic waste, need to have top clay liners for minimizing penetration and percolation of precipitated rain and meltwater. Temperature and dry weather vary interchangeably with wet periods making the clay desiccate and fissure, and subsequently wetted etc. Top liners are commonly made of smectite clay, which is the best isolating soil material, undergoing swelling and shrinkage to an extent that depends on the clay content and density. The most important question is whether such liners, in unfrozen condition and covered by erosionresisting coarse soil, maintain their coherence and tightness after centuries of hydration/dehydration cycles. The present study, made on physically confined soft Iraqi clay with about 30% smectite indicates that initially homogeneous dense clay shrinks and desiccates and becomes fissured at 30oC and room RH, but partly recovers by becoming water saturated by infiltrated water. A limited number of drying and wetting sequences seem to give approximately the same change, suggesting that, under common weather conditions and lack of external disturbance, such liners retain a considerable part of their initial water tightness. Thick liners with moderately to high density and exposed to loading by overlying coarse fill are expected to serve particularly well.

  • Almroth-Rosell, Elin
    et al.
    SMHI, Research Department, Oceanography.
    Skogen, Morten
    Sehested Hansen, Ian
    DHI Water and Environments.
    Stipa, Tapani
    University of Helsinki.
    Niiranen, Susa
    Stockholm University.
    The Year 2006 An Environmental Status report of the North Sea, Skagerrak, Kattegat and the Baltic Sea2007In: BANSAI- The Baltic and North Sea marine environmental modelling Asessment Initaiative / [ed] the Nordic Council of Ministers’ Sea and Air Group, 2007Conference paper (Other academic)
  • Eilola, Kari
    et al.
    SMHI, Research Department, Oceanography.
    Almroth-Rosell, Elin
    SMHI, Research Department, Oceanography.
    Andersen, Per
    Nautsvoll, Lars Johan
    Karlson, Bengt
    SMHI, Research Department, Oceanography.
    Modelling the dynamics of harmful blooms of Chattonella sp. in the Skagerrak and the Kattegat2011In: ICES CM 2006/E:12, 2011Conference paper (Other academic)
    Abstract [en]

    The presentation shows observations, satellite images and model results describing the growth and spreading of Chattonella sp. flagellates in the Skagerrak and the Kattegat. Chattonella sp. is a harmful alga that may cause fish kills due to damage of the gills. Calm weather, stable water column stratification, and low turbulence may facilitate the onset of a Chattonella bloom. Results from the three-dimensional hydrodynamical model HIROMB (High Resolution Operational Model for the Baltic Sea) are used as forcing of a transport model that computes vertical and horizontal transports of chemical and biological compounds. A modified version of the Swedish Coastal and Ocean Biogeochemical model (SCOBI) is used to describe the temporal evolution of the phytoplankton spring blooms in the year 2001 when Chattonella was abundant and 2002 when only small amounts of Chattonella were observed. A comparison with satellite images and cell counts indicates that the model captures the main transport patterns of phytoplankton in the surface layers of the offshore areas. The Chattonella bloom of the model starts in the quite shallow parts of the western Kattegat and in the stratified coastal areas of the northern Skagerrak. The coastal waters near the river Göta Älv of Sweden also indicate a tendency of an increased occurrence of Chattonella. Chattonella is observed in the model during both years but the occurrence of Chattonella is more significant in the year 2001 than in 2002.

  • Meier, Markus
    et al.
    SMHI, Research Department, Oceanography.
    Eilola, Kari
    SMHI, Research Department, Oceanography.
    Almroth-Rosell, Elin
    SMHI, Research Department, Oceanography.
    Climate-related changes in marine ecosystems simulated with a three-dimensional coupled physical -biogeochemical model of the Baltic Sea2011In: Climate Research (CR), ISSN 0936-577X, E-ISSN 1616-1572, Vol. 48, 31-55 p.Article in journal (Refereed)
  • Campbell, Alex
    et al.
    Glencore Copper.
    Thurley, Matthew
    Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Signals and Systems.
    Application of laser scanning to measure fragmentation in underground mines2017In: Mining Technology, ISSN 1474-9009, E-ISSN 1743-2863Article in journal (Refereed)
    Abstract [en]

    The particle size distribution of fragmented rock in mines significantly affects operational performance of loading equipment, materials handling and crushing systems. A number of methods to measure rock fragmentation exist at present, however these systems have a number of shortcomings in an underground environment. This paper outlines the first implementation of high resolution 3D laser scanning for fragmentation measurement in an underground mine. The system is now used routinely for fragmentation measurement at the Ernest Henry sublevel-cave mine following extensive testing and calibration. The system is being used to study the effects of blasting parameters on rock fragmentation to optimise blast design. Results from 125 three dimensional scans measured the average P50 and P80 to be 230mm and 400mm respectively. The equipment, methodology and analysis techniques are described in detail to enable application of the measurement system at other mines.

  • Booth, Todd
    et al.
    Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Computer Science.
    Andersson, Karl
    Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Computer Science. Luleå University of Technology, Centre for Critical Infrastructure and Societal Security.
    Stronger Authentication for Password Credential Internet Services2017In: Proceedings of the 2017 Third Conference on Mobile and Secure Services (MOBISECSERV) / [ed] Pascal Urien, Selwyn Piramuthu, Piscataway, NJ: IEEE conference proceedings, 2017, 41-45 p.Conference paper (Refereed)
    Abstract [en]

    Most Web and other on-line service providers (”Inter- net Services”) only support legacy ID (or email) and password (ID/PW) credential authentication. However, there are numerous vulnerabilities concerning ID/PW credentials. Scholars and the industry have proposed several improved security solutions, such as MFA, however most of the Internet Services have refused to adopt these solutions. Mobile phones are much more sensitive to these vulnerabilities (so this paper focuses on mobile phones). Many users take advantage of password managers, to keep track of all their Internet Service profiles. However, the Internet Service profiles found in password managers, are normally kept on the PC or mobile phone’s disk, in an encrypted form. Our first contribution is a design guideline, whereby the Internet Service profiles never need to touch the client’s disk. Most users would benefit, if they had the ability to use MFA, to login to a legacy Internet Service, which only supports ID/PW credential authentication. Our second contribution is a design guideline, whereby users can choose, for each legacy ID/PW Internet Service, which specific MFA they wish to use. We have also presenting conceptual design guidelines, showing that both of our contributions are minor changes to existing password managers, which can be implemented easily with low overhead.

  • Borisova, Liubov
    et al.
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Social Sciences, Department of Sociology.
    Martinussen, Pål E.
    Department of Sociology and Political Science, Norwegian University of Science and Technology, Norway.
    Rydland, Håvard T.
    Department of Sociology and Political Science, Norwegian University of Science and Technology, Norway.
    Stornes, Per
    Department of Sociology and Political Science, Norwegian University of Science and Technology, Norway.
    Eikemo, Terje A.
    Department of Sociology and Political Science, Norwegian University of Science and Technology, Norway.
    Public evaluation of health services across 21 European countries: The role of culture2017In: Scandinavian Journal of Public Health, ISSN 1403-4948, E-ISSN 1651-1905Article in journal (Refereed)
    Abstract [en]

    Aims: This work examined the role of cultural values in understanding people’s satisfaction with health services across Europe. Methods: We used multilevel linear regression analysis on the seventh round of the European Social Survey from 2014, including c. 40,000 respondents from 21 countries. Preliminary intraclass correlation analyses led us to believe that some explanations of variance in the dependent variable were to be found at the country level. In search of country level explanations, we attempted to account for the role of national culture in influencing citizens’ attitudes towards health systems. This was done by using Hofstede’s dimensions of power distance, individualism, masculinity and uncertainty avoidance, giving each country in the survey a mean aggregated score. Results: In our first model with individual level variables, being female, having low or medium education, experiencing financial strain, and reporting poor health and unmet medical needs were negatively associated with individual satisfaction with national healthcare systems, with the latter variable showing the strongest effect. After including Hofstede’s cultural dimensions in our multilevel model, we found that the power distance index variable had a negative effect on the dependent variable, significant at the 0.1 level. Conclusions: Citizens are likely to evaluate their national health system more negatively in national cultures associated with autocracy and hierarchy.

  • Public defence: 2017-03-17 10:00 Kollegiesalen, Stockholm
    Raj, Akanksha
    KTH, School of Chemical Science and Engineering (CHE), Chemistry, Surface and Corrosion Science.
    Synergies in Biolubrication2017Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    The objective of this thesis was to advance understanding in the field of biolubrication, finding inspiration from the human synovial joints. This was addressed by investigating the association of key biolubricants and the resulting lubrication performance. Techniques employed during the course of this work were Atomic force microscopy (AFM), Quartz crystal microbalance with dissipation monitoring (QCM-D), X-ray reflectivity (XRR).

    Key synovial fluid and cartilage components like dipalmitoylphosphatidylcholine (DPPC), hyaluronan (HA), lubricin, and cartilage oligomeric matrix protein (COMP) have been used in the investigations. Focus was towards two lubrication couples; DPPC-hyaluronan and COMP-lubricin. DPPC-hyaluronan mixtures were probed on hydrophilic silica surfaces and COMP-lubricin association structures were explored on weakly hydrophobic poly (methyl methacrylate) (PMMA) surfaces.

    Investigations of the COMP-lubricin pair revealed that individually these components are unable to reach desired lubrication. However in combination, COMP facilitates firm attachment of lubricin to the PMMA surface in a favourable confirmation that imparts low friction coefficient.

    DPPC and hyaluronan combined impart lubrication advantage over lone DPPC bilayers. Hyaluronan provides a reservoir of DPPC on the surface and consequently self-healing ability.

    Other factors like temperature, presence of calcium ions, molecular weight of hyaluronan, and pressure were also explored. DPPC bilayers at higher temperature had higher load bearing capacity. Association between DPPC Langmuir layers and hyaluronan was enhanced in the presence of calcium ions, and lower molecular weight hyaluronan had a stronger tendency to bind to DPPC. At high pressures, DPPC-hyaluronan layers were more stable compared to lone DPPC bilayers.

  • Public defence: 2017-03-17 09:30 D2, Stockholm
    Brown, Nils W. O.
    KTH, School of Architecture and the Built Environment (ABE), Urban Planning and Environment, Environmental Strategies (moved 20130630).
    Managing high environmental performance?: Applying life cycle approaches and environmental certification tools in the building and real estate sectors2017Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    The main aim of this thesis is  to demonstrate and critically assess life cycle approaches’ and environmental certification (EC) tools’ potential for supporting decisions for improved environmental performance in the building and real estate sectors.

    Using life cycle approaches, the thesis shows that for new build and renovation cases aiming for low operational energy use that embodied global warming potential (GWP) due to material production can constitute a large portion of a building’s lifetime GWP. Therefore life cycle based information about materials’ embodied GWP needs to be made available to and utilized by design process decision makers.

    It was also shown that applying the Swedish EC tool Miljöbyggnad was useful in highlighting potential positive and negative changes in indoor environmental quality arising from renovation packages aiming at significant operational energy use reduction in existing multifamily buildings. However such renovation packages are not profitable from a property owner perspective. Miljöbyggnad may be useful when designing policy instruments to overcome this.   

    The thesis also showed that EC and related environmental enhancements contribute to achieving property owners’ and tenants’ overall strategic objectives for value creation. For property owners this arises for example through lower energy costs and attracting desirable tenants. For tenants, value creation arises as support for internal and external environmental communication.

    For the further development of life cycle approaches’ and EC tools’ application to buildings and real estate it is important to consider how they can be adapted to consider ‘distance to sustainable’ targets referencing for instance the planetary boundaries approach. It is also interesting to investigate how valuation of buildings and real estate may be performed in a way that expands from the current narrow focus on the economic perspective to also include environmental and social perspectives.

  • Asprem, Egil
    Stockholm University, Faculty of Humanities, Department of Ethnology, History of Religions and Gender Studies.
    Explaining the Esoteric Imagination: Towards a Theory of Kataphatic Practice2017In: Aries: Journal for the Study of Western Esotericism, ISSN 1567-9896, E-ISSN 1570-0593, Vol. 17, no 1, 17-50 p.Article in journal (Refereed)
    Abstract [en]

    The imagination is central to esoteric practices, but so far scholars have shown littleinterest in exploring cognitive theories of how the imagination works. The onlyexception is Tanya Luhrmann’s interpretive drift theory and related research on mentalimagery cultivation, which has been used to explain the subjective persuasiveness ofmodern ritual magic. This article draws on recent work in the neuroscience of perceptionin order to develop a general theory of kataphatic (that is, imagery based) practicethat goes beyond the interpretive drift theory. Mental imagery is intimately linked withperception. Drawing on “predictive coding” theory, the article argues that kataphaticpractices exploit the probabilistic, expectation-based way that the brain processes sensoryinformation and creates models (perceptions) of the world. This view throws lighton a wide range of features of kataphatic practices, from their contemplative and cognitiveaspects, to their social organization and demographic make-up, to their pageantryand material culture. By connecting readily observable features of kataphatic practiceto specific neurocognitive mechanisms related to perceptual learning and cognitiveprocessing of mental imagery, the predictive coding paradigm also creates opportunitiesfor combining historical research with experimental approaches in the study ofreligion. I illustrate how this framework may enrich the study of Western esotericismin particular by applying it to the paradigmatic case of “astral travel” as it has developedfrom the Golden Dawn tradition of ritual magic, especially in the work of AleisterCrowley.

  • Parra Rosales, Luz Paula
    Stockholm University, Faculty of Humanities, Department of Romance Studies and Classics, Institute of Latin American Studies.
    Estrategía de Mediación: Familiar, Escolar y Comunicación.: Metodología de Acción para los programas de Prevención Social de Estados y Municipios.2014Other (Other (popular science, discussion, etc.))
    Abstract [es]

    El objetivo de esta metodología de acción es servir como una herramienta de prevención social de la violencia y la delincuencia, contribuyendo a la transformación positiva de los conflictos, a la convivencia ciudadana mediante la formación y la capacitación en mediación y a la generación de espacios de diálogo par ala construcción de acuerdos.

    La presente metodología está integrada por diferentes apartados. Al inicio se expone el marco conceptual y su vínculo con el Programa Nacional de Prevención Social de la Violencia y la Delincuencia. En el siguiente apartado, se señalan los factores de riesgo relacionados con el manejo inadecuado de los conflictos sociales y comunitarios en distintos ámbitos y sectores. Posteriormente, se presentan de manera general las recomendaciones estratégicas de capacitación en mediación y los temas necesarios para trabajar en torno a la mediación familiar, escolar y comunitaria de forma particular. En seguida, se detallan los requisitos necesarios para cre4ar espacios para el diálogo y la construcción de acuerdos. Finalmente, se incluyen los indicadores necesarios para alcanzar los objetivos propuestos en esta metodología, así como la bibliografía y las fuentes relacionadas con las mejores prácticas a nivel nacional e internacional.

  • Asprem, Egil
    Stockholm University, Faculty of Humanities, Department of Ethnology, History of Religions and Gender Studies.
    What Cognitive Science Offers the Study of Esotericism2017In: Aries: Journal for the Study of Western Esotericism, ISSN 1567-9896, Vol. 17, no 1, 1-15 p.Article in journal (Other academic)
  • Alger, Susanne
    Umeå University, Faculty of Social Sciences, Department of applied educational science, Departement of Educational Measurement.
    Jämförelser mellan provorter: en studie av körprov för behörighet B2016Report (Other academic)
    Abstract [en]

    There are more than 130 places in Sweden where driving tests can be carried out, with their own particular traffic environments, examiners and test-takers. The test-takers' ages and their preferred method of registering for the test vary between places. In some places only a few tests are carried out and in some a large number of tests. In some places certain aspects of the traffic environment are absent, like motorways, railway crossings or roundabouts. The intensity of traffic also varies between different locations. In short, there are many aspects that can vary between individual tests. In this report various ways of presenting such differences and some ways of categorizing places are explored.

    Does this have consequences for results? It is difficult to analyse as several variables probably interact and are hard to untangle and due to the nature of the data. The result is binary – pass/fail – which limits what analyses can be made – and there are many categories in the variables place and examiner. In order to achieve fewer categories some can be collapsed into fewer and larger categories. The question is then how many categories and what criteria should be used to form them. When analyses are made we can see that the content of tests differ both within a particular location and between different places. It is, however, unclear if the same or different skills and abilities are measured in different places, but nevertheless not as simple as to claim that it is "easier" to obtain a licence in certain places than others based on simple comparisons of success rates. Test-takers' age and method of registration for the test, aspects that we know are connected to the percentage of passed tests, also differ between places.

  • Babchishin, K. M.
    et al.
    Univ Ottawa, Royals Inst Mental Hlth Res, Ottawa, ON, Canada.;Karolinska Inst, Dept Med Epidemiol & Biostat, Stockholm, Sweden..
    Seto, M. C.
    Univ Ottawa, Royals Inst Mental Hlth Res, Ottawa, ON, Canada..
    Sariaslan, A.
    Univ Oxford, Dept Psychiat, Oxford, England..
    Lichtenstein, P.
    Karolinska Inst, Dept Med Epidemiol & Biostat, Stockholm, Sweden..
    Fazel, S.
    Univ Oxford, Dept Psychiat, Oxford, England..
    Långström, Niklas
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Child and Adolescent Psychiatry. Karolinska Inst, Dept Med Epidemiol & Biostat, Stockholm, Sweden..
    Parental and perinatal risk factors for sexual offending in men: a nationwide case-control study2017In: Psychological Medicine, ISSN 0033-2917, E-ISSN 1469-8978, Vol. 47, no 2, 305-315 p.Article in journal (Refereed)
    Abstract [en]

    Background. Prior studies suggest parental and perinatal risk factors are associated with later offending. It remains uncertain, however, if such risk factors are similarly related to sexual offending. Method. We linked socio-demographic, family relations, and perinatal (obtained at birth) data from the nationwide Swedish registers from 1973 to 2009 with information on criminal convictions of cases and control subjects. Male sex offenders (n = 13 773) were matched 1: 5 on birth year and county of birth in Sweden to male controls without sexual or non-sexual violent convictions. To examine risk-factor specificity for sexual offending, we also compared male violent, non-sexual offenders (n = 135 953) to controls without sexual or non-sexual violent convictions. Predictors included parental (young maternal or paternal age at son's birth, educational attainment, violent crime, psychiatric disorder, substance misuse, suicide attempt) and perinatal (number of older brothers, low Apgar score, low birth weight, being small for gestational age, congenital malformations, small head size) variables. Results. Conditional logistic regression models found consistent patterns of statistically significant, small to moderate independent associations of parental risk factors with sons' sexual offending and non-sexual violent offending. For perinatal risk factors, patterns varied more; small for gestational age and small head size exhibited similar risk effects for both offence types whereas a higher number of older biological brothers and any congenital malformation were small, independent risk factors only for non-sexual violence. Conclusions. This nationwide study suggests substantial commonalities in parental and perinatal risk factors for the onset of sexual and non-sexual violent offending.

  • Anderberg, Sabina
    Stockholm University, University Library.
    Hantering av forskningsdata vid Stockholms universitet: Förslag till strategi och struktur2016Report (Other academic)
    Abstract [sv]

    Stockholms universitet (SU) har som myndighet ansvar för att lagra, tillgängliggöra och bevara forskningsdata som produceras vid lärosätet. För att kunna ta detta ansvar fullt ut behövs en gemensam, samordnad strategi och struktur. Under hösten 2016 har en projektgrupp haft i uppdrag att utforma och lämna förslag till en för Stockholms universitet gemensam strategi och struktur för hur forskningsdata kan hanteras, tillgängliggöras och lagras kort- och långsiktigt. Projektet har pågått under tidsperioden september till december 2016 och samordnats av universitetsbiblioteket. Projektgruppen har bestått av representanter från Universitetsförvaltningen (arkiv, bibliotek, forskarstöd, IT, planerings- och ledningsstöd) och forskarrepresentanter från Humanvetenskapliga och Naturvetenskapliga området.

    Syftet med projektet har varit att övergripande identifiera behovet av forskningsstödjande tjänster, förvaltningens resursbehov för att kunna tillhandahålla detta, och skapa en förbättrad beredskap vid lärosätet inför EU-deklarerade och troliga kommande nationella direktiv och riktlinjer för öppen tillgång till forskningsdata. Målsättningen har varit att undersöka vilket stöd och vilka tjänster forskarna efterfrågar, hur behoven inom de olika disciplinerna ser ut, hur förvaltningen kan förbättra samverkan, samordning och utveckling av de forskningsstödjande tjänsterna, vilka riktlinjer, policys o.dyl. som finns och vilka som behöver utvecklas för hantering, lagring, tillgängliggörande och bevarande av forskningsdata. Arbetet har utgått från att; samordna, samverka och säkerställa förbättrade möjligheter och verksamhet för utveckling av forskningsstödjande tjänster för forskningsdata. Rapporten är uppdelad i tre områden: strategi, struktur och systemstöd. Inom varje område beskrivs kort förutsättningar, behov och förslag. Rapporten innehåller en sammanställning av övergripande förslag på kommande åtgärder och uppdrag för strategi, policys och riktlinjer, rättsutredning, arbetsorganisation, handledningsstöd, informations- och kommunikationsinsatser samt systemstöd för lagring, tillgängliggörande och bevarande. Rapporten är närmast att betrakta som en förstudie inför kommande specifika uppdrag inom respektive område.

  • Public defence: 2017-03-03 10:00 F3, Stockholm
    Zmijewski, Nicholas
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Hydraulic Engineering.
    Effects of Watershed Dynamics on Water Reservoir Operation Planning: Considering the Dynamic Effects of Streamflow in Hydropower Operation2017Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    Water reservoirs are used to regulate river discharge for a variety of reasons, such as flood mitigation, water availability for irrigation, municipal consumption and power production purposes. Recent efforts to increase the amount of renewable power production have seen an increase in intermittent climate-variable power production due to wind and solar power production. The additional variable energy production has increased the need for regulating the capacity of the electrical system, to which hydropower production is a significant contributor. The hydraulic impact on the time lags of flows between production stations have often largely been ignored in optimization planning models in favor of computational efficiency and simplicity. In this thesis, the hydrodynamics in the stream network connecting managed reservoirs were described using the kinematic-diffusive wave (KD) equation, which was implemented in optimization schemes to illustrate the effects of wave diffusion in flow stretches on the resulting production schedule. The effect of wave diffusion within a watershed on the variance of the discharge hydrograph within a river network was also analyzed using a spectral approach, illustrating that wave diffusion increases the variance of the hydrograph while the regulation of reservoirs generally increases the variance of the hydrograph over primarily short periods. Although stream hydrodynamics can increase the potential regulation capacity, the total capacity for power regulation in the Swedish reservoir system also depends significantly on the variability in climatic variables. Alternative formulations of the environmental objectives, which are often imposed as hard constraints on discharge, were further examined. The trade-off between the objectives of hydropower production and improvement of water quality in downstream areas was examined to potentially improve the ecological and aquatic environments and the regulation capacity of the network of reservoirs.

  • Forsman, Åsa
    Swedish National Road and Transport Research Institute, Traffic and road users, Traffic safety, society and road-user.
    Förstudie om antal alkoholutandningsprov i trafiken2016Report (Other academic)
    Abstract [sv]

    Hur ska polisens övervakning av alkoholrattfylleri bedrivas? Det är en fråga som har aktualiserats den senaste tiden dels på grund av polisens nya organisation som introducerades 1 januari 2015 och dels på grund av att antal alkoholutandningsprov som utförs varje år har minskat med drygt 50 procent mellan år 2010 och 2015. Frågan är komplex och behöver belysas från olika håll. I den här PM:et belyses frågan om antal alkoholutandningsprov och dess betydelse för rattfylleriets omfattning. PM:et ska ses som ett underlag för fortsatta diskussioner om polisens övervakning men även om vilken ytterligare forskning som behövs inom området. Underlaget baseras på tre delar: (i) en jämförelse mellan antal utandningsprov som görs i Sverige och antalet i andra länder, (ii) en jämförelse av subjektiv och faktisk upptäcktsrisk baserat på data från ESRA–projektet (European Survey of Road Users’ Safety Attitudes) och (iii) en sammanställning av aktuell forskning på området.

    Uppgifter om antal utandningsprov saknas i många länder men en jämförelse har kunnat göras mellan Sverige och 13 andra europeiska länder. Resultaten visar att Sverige var det land bland dessa som år 2010 utförde flest prov per invånare. År 2015 var det sex länder som utförde fler prov per invånare än vad Sverige gjorde: Österrike, Estland, Finland, Frankrike, Polen och Slovenien. En jämförelse med Australien visar också att flera av dess delstater utför betydligt fler utandningsprov per körkortsinnehavare än vad man gör i Sverige.

    Litteraturgenomgången visar att om man ökar antal prov leder det till en högre subjektiv upptäcktsrisk vilket i sin tur leder till en högre allmänpreventiv effekt. Det behövs dock mer forskning om vilken nivå på övervakningens omfattning som ger bäst avvägning mellan polisens resurser och antal rattfylleribrott.

    Det är inte bara polisens övervakning som har betydelse för antal rattfylleribrott. Andra faktorer som till exempel sociala normer är också viktiga. Resultat från ESRA-studien visar bland annat att det är väldigt få som kör rattfulla i Sverige även om den subjektiva upptäcktsrisken är ganska låg jämfört med flera av de andra länderna. En slutsats av det är att det behövs mer forskning om de specifika förhållanden som gäller i Sverige. Senast det gjordes någon större studie om rattfylleriövervakningens effekter i Sverige var i början på 1990-talet. Idag sker en stor del av forskningen i USA och Australien och dess grannländer och det är svårt att direkt översätta dessa resultat till svenska förhållanden.

  • Persson, Fredrik
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Hållbar Samhällsbyggnad.
    Andersson, Jan-Erik
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Hållbar Samhällsbyggnad.
    Automatisk övervakning och uppföljning i torkprocessen2016Report (Other academic)
    Abstract [en]

    The goal of the project was to develop technology that makes it possible to automatically monitor and control the drying process and thus meet the target moisture content with higher precision.

    Weighing of the green wood was seen as a feasible and cost-effective method to get information about the green wood density and moisture content. The hypothesis was that the variations in dry density of pine and spruce are low enough to give a good enough estimate of green moisture content when weighing the timber before drying. A scale was installed at Kåge sawmill in the green sorter between the sink bins and the sticker stacker. All wood that passed the scale was weighted automatically and the three regular check-ups of the scale showed that it had an accuracy of just under 0,9% in relation to the reference weight. This gives an error of 1,8 – 2 % of the calculated moisture content depending on the variation of density of the wood

    The density of green wood, dry density and green moisture content was followed for four products between March and November 2013, one thin and one thick for both spruce and pine. The results from the tests showed variations of the dry density is subordinate to the green moisture content. The largest variation in green moisture content was found for 32 x 125 mm pine where it varied between 64 and 82 %. Spruce with the dimensions 63x150 mm was the only dimension that did not have any variation in green moisture content.

    Measurements indicate that it is possible to achieve the set goals: to be able to predict the green moisture content by about ± 5% points, while also adding variations in dry density, scale uncertainty and fluctuating green dimensions.

    Key words: Packet weight, industrial sawmill, wood drying

  • Simeon, Saw
    et al.
    Mahidol Univ, Fac Med Technol, Ctr Data Min & Biomed Informat, Bangkok 10700, Thailand..
    Shoombuatong, Watshara
    Mahidol Univ, Fac Med Technol, Ctr Data Min & Biomed Informat, Bangkok 10700, Thailand..
    Anuwongcharoen, Nuttapat
    Mahidol Univ, Fac Med Technol, Ctr Data Min & Biomed Informat, Bangkok 10700, Thailand..
    Preeyanon, Likit
    Mahidol Univ, Fac Med Technol, Dept Community Med Technol, Bangkok 10700, Thailand..
    Prachayasittikul, Virapong
    Mahidol Univ, Fac Med Technol, Dept Community Med Technol, Bangkok 10700, Thailand..
    Wikberg, Jarl E. S.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Pharmacy, Department of Pharmaceutical Biosciences.
    Nantasenamat, Chanin
    Mahidol Univ, Fac Med Technol, Ctr Data Min & Biomed Informat, Bangkok 10700, Thailand..
    osFP: a web server for predicting the oligomeric states of fluorescent proteins2016In: Journal of Cheminformatics, ISSN 1758-2946, E-ISSN 1758-2946, Vol. 8, 72Article in journal (Refereed)
    Abstract [en]

    Background: Currently, monomeric fluorescent proteins (FP) are ideal markers for protein tagging. The prediction of oligomeric states is helpful for enhancing live biomedical imaging. Computational prediction of FP oligomeric states can accelerate the effort of protein engineering efforts of creating monomeric FPs. To the best of our knowledge, this study represents the first computational model for predicting and analyzing FP oligomerization directly from the amino acid sequence. Results: After data curation, an exhaustive data set consisting of 397 non-redundant FP oligomeric states was compiled from the literature. Results from benchmarking of the protein descriptors revealed that the model built with amino acid composition descriptors was the top performing model with accuracy, sensitivity and specificity in excess of 80% and MCC greater than 0.6 for all three data subsets (e.g. training, tenfold cross-validation and external sets). The model provided insights on the important residues governing the oligomerization of FP. To maximize the benefit of the generated predictive model, it was implemented as a web server under the R programming environment. Conclusion: osFP affords a user-friendly interface that can be used to predict the oligomeric state of FP using the protein sequence. The advantage of osFP is that it is platform-independent meaning that it can be accessed via a web browser on any operating system and device. osFP is freely accessible at http://codes.bio/osfp/ while the source code and data set is provided on GitHub at https://github.com/chaninn/osFP/.

  • Johnson, Kyle D.
    KTH, School of Engineering Sciences (SCI), Physics, Reactor Physics.
    High Performance Fuels for Water-Cooled Reactor Systems2016Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    Investigation of nitride fuels and their properties has, for decades, been propelled on the basis of their desirable high metal densities and high thermal conductivities, both of which oer intrinsic advantages to performance, economy, and safety in fast and light water reactor systems. In this time several key obstacles have been identied as impeding the implementation of these fuels for commercial applications; namely chemical interactions with air and steam, the noted diculty in sintering of the material, and the high costs associated with the enrichment of 15N. The combination of these limitations, historically, led to the well founded conclusion that the most appropriate use of nitride fuels was in the fast reactor fuel cycle, where the cost burdens associated with them is substantially less. Indeed, it is within this context that the vast majority of work on nitrides has been and continues to be done.

    Nevertheless, following the 2011 Fukushima-Daiichi nuclear accident, a concerted governmental-industrial eort was embarked upon to explore the alternatives of so-called \accident tolerant" and \high performance" fuels. These fuels would, at the same time, improve the response of the fuel-clad system to severe accidents and improve the economy of operation for light water reactor systems. Among the various candidates proposed are uranium nitride, uranium silicide, and a third \uranium nitride-silicide" composite featuring a mixture of the former.

    In this thesis a method has been established for the synthesis, fabrication, and characterization of high purity uranium nitride, and uranium nitride-silicide composites, prepared by the spark plasma sintering (SPS) technique. A specic result has been to isolate the impact of the processing parameters on the microstructure of representative fuel pellets, essentially permitting any conceivable microstructure of interest to be fabricated. This has enabled the development of a highly reproducible technique for the production of pellets with microstructures tailored towards any desired porosity between 88-99.9%TD, any grain size between 6-24 μm, and, in the case of  the uranium nitride-silicide composite, a silicide-coated UN matrix. This has permitted the evaluation of these microstructural characteristics on the performance of these materials, specically with respect to their role as accident tolerant fuels. This has generated results which have tightly coupled nitride performance with pellet microstructure, with important implications for the use of nitrides in water-cooled reactors.

  • Domert, Jakob
    et al.
    Linkoping Univ, Dept Clin Pathol, Linkoping, Sweden.;Linkoping Univ, Dept Clin & Expt Med, Linkoping, Sweden..
    Sackmann, Christopher
    Linkoping Univ, Dept Clin Pathol, Linkoping, Sweden.;Linkoping Univ, Dept Clin & Expt Med, Linkoping, Sweden..
    Severinsson, Emelie
    Linkoping Univ, Dept Clin Pathol, Linkoping, Sweden.;Linkoping Univ, Dept Clin & Expt Med, Linkoping, Sweden..
    Agholme, Lotta
    Linkoping Univ, Dept Clin Pathol, Linkoping, Sweden.;Linkoping Univ, Dept Clin & Expt Med, Linkoping, Sweden.;Univ Gothenburg, Sahlgrenska Acad, Inst Neurosci & Physiol, Gothenburg, Sweden..
    Bergström, Joakim
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Public Health and Caring Sciences, Geriatrics.
    Ingelsson, Martin
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Public Health and Caring Sciences, Geriatrics.
    Hallbeck, Martin
    Linkoping Univ, Dept Clin Pathol, Linkoping, Sweden.;Linkoping Univ, Dept Clin & Expt Med, Linkoping, Sweden..
    Aggregated Alpha-Synuclein Transfer Efficiently between Cultured Human Neuron-Like Cells and Localize to Lysosomes2016In: PLoS ONE, ISSN 1932-6203, E-ISSN 1932-6203, Vol. 11, no 12, e0168700Article in journal (Refereed)
    Abstract [en]

    Parkinson's disease and other alpha-synucleinopathies are progressive neurodegenerative diseases characterized by aggregates of misfolded alpha-synuclein spreading throughout the brain. Recent evidence suggests that the pathological progression is likely due to neuron-to-neuron transfer of these aggregates between neuroanatomically connected areas of the brain. As the impact of this pathological spreading mechanism is currently debated, we aimed to investigate the transfer and subcellular location of alpha-synuclein species in a novel 3D co-culture human cell model based on highly differentiated SH-SY5Y cells. Fluorescently-labeled monomeric, oligomeric and fibrillar species of alpha-synuclein were introduced into a donor cell population and co-cultured with an EGFP-expressing acceptor-cell population of differentiated neuron-like cells. Subsequent transfer and colocalization of the different species were determined with confocal microscopy. We could confirm cell-to-cell transfer of all three alpha-synuclein species investigated. Interestingly the level of transferred oligomers and fibrils and oligomers were significantly higher than monomers, which could affect the probability of seeding and pathology in the recipient cells. Most alpha-synuclein colocalized with the lysosomal/endosomal system, both pre- and postsynaptically, suggesting its importance in the processing and spreading of alpha-synuclein.