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  • Kardakis, Therese
    et al.
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Epidemiology and Global Health. Department of Learning, Informatics, Management and Ethics, Medical Management Centre, Karolinska Institutet, Stockholm, Sweden.
    Jerdén, Lars
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Epidemiology and Global Health. Center for Clinical Research Dalarna, Falun, Sweden; School of Education, Health and Social Studies, Dalarna University, Falun, Sweden.
    Nyström, Monica E.
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Epidemiology and Global Health. Department of Learning, Informatics, Management and Ethics, Medical Management Centre, Karolinska Institutet, Stockholm, Sweden.
    Weinehall, Lars
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Epidemiology and Global Health.
    Johansson, Helene
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Epidemiology and Global Health.
    Implementation of clinical practice guidelines on lifestyle interventions in Swedish primary healthcare: a two-year follow up2018In: BMC Health Services Research, ISSN 1472-6963, E-ISSN 1472-6963, Vol. 18, article id 227Article in journal (Refereed)
    Abstract [en]

    Background: Implementation of interventions concerning prevention and health promotion in health care has faced particular challenges resulting in a low frequency and quality of these services. In November 2011, the Swedish National Board of Health and Welfare released national clinical practice guidelines to counteract patients' unhealthy lifestyle habits. Drawing on the results of a previous study as a point of departure, the aim of this two-year follow up was to assess the progress of work with lifestyle interventions in primary healthcare as well as the uptake and usage of the new guidelines on lifestyle interventions in clinical practice. Methods: Longitudinal study among health professionals with survey at baseline and 2 years later. Development over time and differences between professional groups were calculated with Pearson chi-square test. Results: Eighteen percent of the physicians reported to use the clinical practice guidelines, compared to 58% of the nurses. Nurses were also more likely to consider them as a support in their work than physicians did. Over time, health professionals usage of methods to change patients' tobacco habits and hazardous use of alcohol had increased, and the nurses worked to a higher extent than before with all four lifestyles. Knowledge on methods for lifestyle change was generally high; however, there was room for improvement concerning methods on alcohol, unhealthy eating and counselling. Forty-one percent reported to possess thorough knowledge of counselling skills. Conclusions: Even if the uptake and usage of the CPGs on lifestyle interventions so far is low, the participants reported more frequent counselling on patients' lifestyle changes concerning use of tobacco and hazardous use of alcohol. However, these findings should be evaluated acknowledging the possibility of selection bias in favour of health promotion and lifestyle guidance, and the loss of one study site in the follow up. Furthermore, this study indicates important differences in physicians and nurses' attitudes to and use of the guidelines, where the nurses reported working to a higher extent with all four lifestyles compared to the first study. These findings suggest further investigations on the implementation process in clinical practice, and the physicians' uptake and use of the CPGs.

  • Bergström, Ann-Kristin
    et al.
    Umeå University, Faculty of Science and Technology, Department of Ecology and Environmental Sciences.
    Karlsson, Jan
    Umeå University, Faculty of Science and Technology, Department of Ecology and Environmental Sciences.
    Karlsson, Daniel
    Umeå University, Faculty of Science and Technology, Department of Ecology and Environmental Sciences.
    Vrede, Tobias
    Contrasting plankton stoichiometry and nutrient regeneration in northern arctic and boreal lakes2018In: Aquatic Sciences, ISSN 1015-1621, E-ISSN 1420-9055, Vol. 80, no 2, article id UNSP 24Article in journal (Refereed)
    Abstract [en]

    Contrasting carbon: nitrogen: phosphorus (C: N: P) stoichiometry between phytoplankton and zooplankton affect consumer growth and phytoplankton nutrient limitation via nutrient recycling by zooplankton. However, no study has assessed how regional differences in terrestrial loadings of organic matter affect plankton N: P stoichiometry and recycling in systems with low N deposition and N-limited phytoplankton. We address this question by using data from 14 unproductive headwater arctic and boreal lakes. We found that boreal lakes had higher lake water-and seston C, N and P concentrations than arctic lakes, whereas seston C: N, C: P and N: P ratios did not differ among regions. Boreal zooplankton were also richer in N and P relative to C, with lower somatic N: P ratios, compared to arctic lakes. Consequently, the estimated N: P imbalances between seston and zooplankton were negative in arctic lakes, indicating zooplankton feeding on phytoplankton of suboptimal N content, resulting in low consumer driven N: P recycling (medians arctic sub-mid and high altitude lakes: 11 and 13). In boreal lakes, estimated N: P imbalance did not differ from zero, with a seston N: P stoichiometry matching the N: P requirements of zooplankton, which resulted in higher consumer driven N: P recycling (median 18). Our results imply that regional climate induced catchment differences, through enhanced terrestrial nutrient inputs, affect plankton stoichiometry by raising consumer N: P recycling ratio and changing zooplankton from being mainly N-(arctic) to NP co-limited (boreal). Browning of lakes, in regions with low N deposition, may therefore promote large-scale regional changes in plankton nutrient limitation with potential feedbacks on pelagic food webs.

  • Nikander, Hannele
    et al.
    Andersson, Agnes
    Sverdlilje, Vanja
    Jakobsen, Dorte
    Forsendelser av grønnlistet avfall2018Other (Other (popular science, discussion, etc.))
    Abstract [no]

    Denne veiledningen gir informasjon om dokumentasjonskravene ved forsendelser av grønnlistet avfall. Som en generell regel kreves det samtykke for forsendelser av avfall som krysser landegrenser. Forsendelser med såkalt grønnlistet avfall som skal til gjenvinning skal følge en forenklet prosedyre. 

    Den juridiske bakgrunnen er beskrevet i forordning (EU) nr. 1013/2006 om grensekryssende forsendelser av avfall (grensekryssforordningen). Artikkel 3 og 18 i forordningen gjelder forsendelser av grønnlistet avfall. Forordningen er implementert i avfallsforskriften kap 13.

  • Nikander, Hannele
    et al.
    Andersson, Agnes
    Sverdlilje, Vanja
    Jakobsen, Dorte
    Transport av grönlistat avfall2018Other (Other (popular science, discussion, etc.))
    Abstract [sv]

    Denna vägledning innehåller information om krav gällande transporter av grönlistat avfall. Det krävs som regel en anmälan och godkännande vid gränsöverskridande transporter av avfall. Transport av icke-farligt avfall, så kallat informationspliktigt/grönlistat avfall, avsett för återvinning utgör ett undantag från denna regel.

    Den rättsliga bakgrunden anges i förordning (EG) nr 1013/2006 om transport av avfall. Artiklarna 3 och 18 i förordningen rör transport av grönlistat avfall.

  • Burch, J. L.
    et al.
    Southwest Res Inst, San Antonio, TX, USA.
    Webster, J. M.
    Rice Univ, Dept Phys & Astron, Houston, TX USA.
    Genestreti, K. J.
    Austrian Acad Sci, Space Res Inst, Graz, Austria.
    Torbert, R. B.
    Southwest Res Inst, San Antonio, TX, USA; Univ New Hampshire, Dept Phys, Durham, NH, USA.
    Giles, B. L.
    NASA, Goddard Space Flight Ctr, Greenbelt, MD USA.
    Fuselier, S. A.
    Southwest Res Inst, San Antonio, TX, USA.
    Dorelli, J. C.
    NASA, Goddard Space Flight Ctr, Greenbelt, MD USA.
    Rager, A. C.
    NASA, Goddard Space Flight Ctr, Greenbelt, MD USA; Catholic Univ Amer, Dept Phys, Washington DC, USA..
    Phan, T. D.
    Univ Calif Berkeley, Space Sci Lab, Berkeley, CA, USA.
    Allen, R. C.
    Johns Hopkins Univ, Appl Phys Lab, Laurel, MD USA.
    Chen, L. -J
    Univ Maryland, Dept Astron, College Pk, MD, USA.
    Wang, S.
    Univ Maryland, Dept Astron, College Pk, MD, USA.
    Le Contel, O.
    Univ Paris Sud, UPMC Univ Paris 06, Lab Phys Plasmas, CNRS, Ecole Polytech,Observ Paris, Paris, France.
    Russell, C. T.
    Univ Calif Los Angeles, Earth & Planetary Sci, Los Angeles, CA, USA.
    Strangeway, R. J.
    Univ Calif Los Angeles, Earth & Planetary Sci, Los Angeles, CA, USA.
    Ergun, R. E.
    Univ Colorado, LASP, Boulder, CO, USA.
    Jaynes, A. N.
    Univ Iowa, Dept Phys & Astron, Iowa City, IA, USA.
    Lindqvist, P. -A
    Royal Inst Technol, Stockholm, Sweden.
    Graham, Daniel B.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Swedish Institute of Space Physics, Uppsala Division.
    Wilder, F. D.
    Univ Colorado, LASP, Boulder, CO, USA.
    Hwang, K. -J
    Southwest Res Inst, San Antonio, TX, USA.
    Goldstein, J.
    Southwest Res Inst, San Antonio, TX, USA.
    Wave Phenomena and Beam-Plasma Interactions at the Magnetopause Reconnection Region2018In: Journal of Geophysical Research - Space Physics, ISSN 2169-9380, E-ISSN 2169-9402, Vol. 123, no 2, p. 1118-1133Article in journal (Refereed)
    Abstract [en]

    This paper reports on Magnetospheric Multiscale observations of whistler mode chorus and higher-frequency electrostatic waves near and within a reconnection diffusion region on 23 November 2016. The diffusion region is bounded by crescent-shaped electron distributions and associated dissipation just upstream of the X-line and by magnetic field-aligned currents and electric fields leading to dissipation near the electron stagnation point. Measurements were made southward of the X-line as determined by southward directed ion and electron jets. We show that electrostatic wave generation is due to magnetosheath electron beams formed by the electron jets as they interact with a cold background plasma and more energetic population of magnetospheric electrons. On the magnetosphere side of the X-line the electron beams are accompanied by a strong perpendicular electron temperature anisotropy, which is shown to be the source of an observed rising-tone whistler mode chorus event. We show that the apex of the chorus event and the onset of electrostatic waves coincide with the opening of magnetic field lines at the electron stagnation point.

  • Nakamura, Rumi
    et al.
    Austrian Acad Sci, Space Res Inst, Graz, Austria.
    Varsani, Ali
    Austrian Acad Sci, Space Res Inst, Graz, Austria.
    Genestreti, Kevin J.
    Austrian Acad Sci, Space Res Inst, Graz, Austria.
    Le Contel, Olivier
    UPMC Univ Paris 06, Univ Paris Sud, Observ Paris, Ecole Polytech, CNRS, Lab Phys Plasmas, Paris, France.
    Nakamura, Takuma
    Austrian Acad Sci, Space Res Inst, Graz, Austria.
    Baumjohann, Wolfgang
    Austrian Acad Sci, Space Res Inst, Graz, Austria.
    Nagai, Tsugunobu
    Tokyo Inst Technol, Earth & Planetary Sci, Tokyo, Japan.
    Artemyev, Anton
    Univ Calif Los Angeles, Dept Earth Planetary & Space Sci, Los Angeles, CA USA.
    Birn, Joachim
    Space Sci Inst, Boulder, CO USA.
    Sergeev, Victor A.
    St Petersburg State Univ, Earths Phys Dept, St Petersburg, Russia.
    Apatenkov, Sergey
    St Petersburg State Univ, Earths Phys Dept, St Petersburg, Russia.
    Ergun, Robert E.
    Univ Colorado, Lab Atmospher & Space Phys, Boulder, CO, USA.
    Fuselier, Stephen A.
    Southwest Res Inst, San Antonio, TX USA.
    Gershman, Daniel J.
    NASA, Goddard Space Flight Ctr, Greenbelt, MD USA.
    Giles, Barbara J.
    NASA, Goddard Space Flight Ctr, Greenbelt, MD USA.
    Khotyaintsev, Yuri V.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Swedish Institute of Space Physics, Uppsala Division.
    Lindqvist, Per-Arne
    Royal Inst Technol, Stockholm, Sweden.
    Magnes, Werner
    Austrian Acad Sci, Space Res Inst, Graz, Austria.
    Mauk, Barry
    Johns Hopkins Univ, Appl Phys Lab, Laurel, MD USA.
    Petrukovich, Anatoli
    RAS, Space Res Inst IKI, Moscow, Russia.
    Russell, Christopher T.
    Univ Calif Los Angeles, Dept Earth Planetary & Space Sci, Los Angeles, CA, USA.
    Stawarz, Julia
    Imperial Coll London, Dept Phys, London, England.
    Strangeway, Robert J.
    Univ Calif Los Angeles, Dept Earth Planetary & Space Sci, Los Angeles, CA USA.
    Anderson, Brian
    Johns Hopkins Univ, Appl Phys Lab, Laurel, MD USA.
    Burch, James L.
    Southwest Res Inst, San Antonio, TX USA.
    Bromund, Ken R.
    NASA, Goddard Space Flight Ctr, Greenbelt, MD USA.
    Cohen, Ian
    Johns Hopkins Univ, Appl Phys Lab, Laurel, MD USA.
    Fischer, David
    Austrian Acad Sci, Space Res Inst, Graz, Austria.
    Jaynes, Allison
    Univ Colorado, Lab Atmospher & Space Phys, Boulder, CO, USA.
    Kepko, Laurence
    NASA, Goddard Space Flight Ctr, Greenbelt, MD USA.
    Le, Guan
    NASA, Goddard Space Flight Ctr, Greenbelt, MD USA.
    Plaschke, Ferdinand
    Austrian Acad Sci, Space Res Inst, Graz, Austria.
    Reeves, Geoff
    CSES, LANL, Los Alamos, NM USA.
    Singer, Howard J.
    NOAA, Space Weather Predict Ctr, Boulder, CO USA.
    Slavin, James A.
    Univ Michigan, Dept Climate & Space Sci & Engn, Ann Arbor, MI, USA.
    Torbert, Roy B.
    Southwest Res Inst, San Antonio, TX USA; Univ New Hampshire, Inst Study Earth Oceans & Space, Durham, NH, USA.
    Turner, Drew L.
    Aerosp Corp, Space Sci Dept, POB, Los Angeles, CA, USA.
    Multiscale Currents Observed by MMS in the Flow Braking Region2018In: Journal of Geophysical Research - Space Physics, ISSN 2169-9380, E-ISSN 2169-9402, Vol. 123, no 2, p. 1260-1278Article in journal (Refereed)
    Abstract [en]

    We present characteristics of current layers in the off-equatorial near-Earth plasma sheet boundary observed with high time-resolution measurements from the Magnetospheric Multiscale mission during an intense substorm associated with multiple dipolarizations. The four Magnetospheric Multiscale spacecraft, separated by distances of about 50 km, were located in the southern hemisphere in the dusk portion of a substorm current wedge. They observed fast flow disturbances (up to about 500 km/s), most intense in the dawn-dusk direction. Field-aligned currents were observed initially within the expanding plasma sheet, where the flow and field disturbances showed the distinct pattern expected in the braking region of localized flows. Subsequently, intense thin field-aligned current layers were detected at the inner boundary of equatorward moving flux tubes together with Earthward streaming hot ions. Intense Hall current layers were found adjacent to the field-aligned currents. In particular, we found a Hall current structure in the vicinity of the Earthward streaming ion jet that consisted of mixed ion components, that is, hot unmagnetized ions, cold ExB drifting ions, and magnetized electrons. Our observations show that both the near-Earth plasma jet diversion and the thin Hall current layers formed around the reconnection jet boundary are the sites where diversion of the perpendicular currents take place that contribute to the observed field-aligned current pattern as predicted by simulations of reconnection jets. Hence, multiscale structure of flow braking is preserved in the field-aligned currents in the off-equatorial plasma sheet and is also translated to ionosphere to become a part of the substorm field-aligned current system.

  • Pham, Lan Anh
    Umeå University, Faculty of Science and Technology, Department of Mathematics and Mathematical Statistics.
    On avoiding and completing edge colorings2018Licentiate thesis, comprehensive summary (Other academic)
    Abstract [en]

    These papers are all related to the problem of avoiding and completing an edge precoloring of a graph. In more detail, given a graph G and a partial proper edge precoloring φ of G and a list assignment L for every non-colored edge of G, can we extend the precoloring to a proper edge coloring avoiding any list assignment? In the first paper, G is a d-dimensional hypercube graph Qd, a partial proper edge precoloring φ and every list assignment L must satisfy certain sparsity conditions. The second paper still deals with d-dimensional hypercube graph Qd, but the list assignment L for every edge of Qd is an empty set and φ must be a partial proper edge precoloring of at most (d - 1) edges. For the third paper, G can be seen as a complete 3-uniform 3-partite hypergraph, every list assignment L must satisfy certain sparsity conditions but we do not have a partial proper edge precoloring φ on edges of G. 

  • Cole, Scott
    et al.
    Lindhjem, Henrik
    Zandersen, Marianne
    Angelidis, Ioannis
    Barton, David N.
    Nordic urban nature recreation: How to practically integrate economic values in decision-making2018Book (Other academic)
    Abstract [en]

    The Nordic countries continue to experience growth of urban areas, which provides benefits like economic growth, but also imposes economic costs in terms of reduced ecosystem services. This report focuses on urban nature recreation and highlights economic methods and data that can help capture the associated nonmarket welfare benefits. The study stresses the need to collect user data to better understand visitation patterns, which can be combined with valuation methods to provide evidence of economic benefits associated with e.g., hiking, cycling, skiing, paddling and other recreation activities. Once these benefits are visible, decision-makers will have a better basis to balance economic growth with the environmental costs it imposes on urban ecosystem services.

  • Hemmingsson, Erik
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences. Karolinska insitutet.
    Early Childhood Obesity Risk Factors: Socioeconomic Adversity, Family Dysfunction, Offspring Distress, and Junk Food Self-Medication.2018In: Current Obesity Reports, E-ISSN 2162-4968, Vol. 7, no 2, p. 204-209Article in journal (Refereed)
    Abstract [en]

    PURPOSE OF REVIEW: To explore the sequence and interaction of infancy and early childhood risk factors, particularly relating to disturbances in the social environment, and how the consequences of such exposures can promote weight gain and obesity.

    RECENT FINDINGS: This review will argue that socioeconomic adversity is a key upstream catalyst that sets the stage for critical midstream risk factors such as family strain and dysfunction, offspring insecurity, stress, emotional turmoil, low self-esteem, and poor mental health. These midstream risk factors, particularly stress and emotional turmoil, create a more or less perfect foil for calorie-dense junk food self-medication and subtle addiction, to alleviate uncomfortable psychological and emotional states. Disturbances in the social environment during infancy and early childhood appear to play a critical role in weight gain and obesity, through such mechanisms as insecurity, stress, and emotional turmoil, eventually leading to junk food self-medication and subtle addiction.

  • Boll, Karen
    et al.
    Copenhagen Business School.
    Brehm Johansen, Mette
    Copenhagen Business School.
    Tax Governance: Corporate experiences with Cooperative Compliance in Denmark2018Report (Refereed)
    Abstract [en]

    This working paper presents an analysis of the experiences of Cooperative Compliance in Denmark. Cooperative Compliance denotes a specific kind of collaborative program for the regulation of large corporate taxpayers by the tax authorities. Cooperative Compliance programs have been implemented in several countries worldwide. In Denmark the program is called Tax Governance. Tax Governance has been studied using qualitative method and the analyses of the working paper build on an extensive base of in-depth interviews – primarily with tax directors from corporations participating in the program. The working paper shows as a general stance that the corporations are supporting the ideas behind Tax Governance and are generally satisfied with their participation. However, the working paper also shows that most of them explain to be stretched between this willingness to participate and the different challenges and contradictions they told to experience in the everyday work practices related to the Tax Governance program. The working paper zooms in at these various everyday experiences from the corporations. Yet, it also zooms out and shows that the Tax Governance program in different ways relate to wider international trends within tax administration, especially concerning the development of risk assessments and internal control in the corporations and a greater focus on monitoring of these elements by the tax authorities. Overall, the working paper concludes that Tax Governance as a model for a collaborative regulatory relationship between Skat and large corporations comes with both possibilities and challenges.

  • Nooijen, Carla F J
    et al.
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences. Karolinska Institutet.
    Kallings, Lena
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Åstrand Laboratory of Work Physiology.
    Blom, Victoria
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Sport Psychology research group. Karolinska Institutet.
    Ekblom, Örjan
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Åstrand Laboratory of Work Physiology.
    Forsell, Yvonne
    Karolinska Institutet.
    Ekblom, Maria
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control. Karolinska Institutet.
    Common Perceived Barriers and Facilitators for Reducing Sedentary Behaviour among Office Workers.2018In: International Journal of Environmental Research and Public Health, ISSN 1661-7827, E-ISSN 1660-4601, Vol. 15, no 4, article id E792Article in journal (Refereed)
    Abstract [en]

    Qualitative studies identified barriers and facilitators associated with work-related sedentary behaviour. The objective of this study was to determine common perceived barriers and facilitators among office workers, assess subgroup differences, and describe sedentary behaviour. From two Swedish companies, 547 office workers (41 years (IQR = 35–48), 65% women, 66% highly educated) completed questionnaires on perceived barriers and facilitators, for which subgroup differences in age, gender, education, and workplace sedentary behaviour were assessed. Sedentary behaviour was measured using inclinometers (n = 311). The most frequently reported barrier was sitting is a habit (67%), which was reported more among women than men (X2 = 5.14, p = 0.03) and more among highly sedentary office workers (X2 = 9.26, p < 0.01). The two other most reported barriers were that standing is uncomfortable (29%) and standing is tiring (24%). Facilitators with the most support were the introduction of either standing- or walking-meetings (respectively 33% and 29%) and more possibilities or reminders for breaks (31%). The proportion spent sedentary was 64% at the workplace, 61% on working days, and 57% on non-working days. This study provides a detailed understanding of office workers’ ideas about sitting and means to reduce sitting. We advise to include the supported facilitators and individualized support in interventions to work towards more effective strategies to reduce sedentary behaviour.

  • Qvarfordt, Mikaela
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Occupational and Environmental Medicine. Karolinska Univ Sjukhuset, Dept Lab Med, Div Clin Physiol, Stockholm, Sweden.
    Anderson, Martin
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Occupational and Environmental Medicine. Karolinska Univ Sjukhuset, Dept Lab Med, Div Clin Physiol, Stockholm, Sweden.
    Svartengren, Magnus
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Occupational and Environmental Medicine.
    Quality and learning aspects of the first 9000 spirometries of the LifeGene study2018In: NPD Bulletin, ISSN 1892-8110, E-ISSN 2055-1010, Vol. 28, article id 6Article in journal (Refereed)
    Abstract [en]

    Spirometry requires the patient to cooperate and do the manoeuvre 'right' for reliable results. Algorithms to assess test quality as well as educational recommendations for personnel are defined in guidelines. We compared the quality of forced spirometry tests performed by spirometry technicians with little or no previous experience of spirometry using spirometry systems with different modes of feedback. In both cases, the spirometry technician received general feedback on the screen based on ATS/ERS guidelines, such as 'exhale faster' and 'exhale longer'. The major difference was whether quality grading system of the complete session was available simultaneously on screen, or in the printed report afterwards. Two parts of the same population-based study (LifeGene), the pilot (LG1) and the first part (LG2) of the subsequent study, were compared retrospectively. In LG1 (on-screen grading) approved examination quality was achieved for 88% of the 10 first subjects for each spirometry technician compared to 70% in LG2 (printed grading afterwards). The corresponding values after 40 subjects was 94 % in LG1, compared to 73% in LG2, and after the first ten subjects there was no apparent quality improvement in either LG1 or LG2. The quality for LG1 is among the highest reported in the literature even though the spirometry technician were relatively inexperienced. We conclude that on-screen grading in addition to general technical quality feedback is powerful in enhancing the spirometry test session quality.

  • García-García, Daniel
    et al.
    Instituto de Tecnología de Materiales (ITM), Universitat Politècnica de València (UPV), Alicante, Spain.
    Balart, Rafael
    Instituto de Tecnología de Materiales (ITM), Universitat Politècnica de València (UPV), Alicante, Spain.
    Lopez-Martinez, Juan
    Instituto de Tecnología de Materiales (ITM), Universitat Politècnica de València (UPV), Alicante, Spain.
    Ek, Monica
    School of Engineering Sciences in Chemistry, Biotechnology and Health, Department of Fibre and Polymer Technology, KTH-Royal Institute of Technology, Stockholm, Sweden.
    Moriana, Rosana
    University of Skövde, School of Engineering Science. University of Skövde, The Virtual Systems Research Centre. School of Engineering Sciences in Chemistry, Biotechnology and Health, Department of Fibre and Polymer Technology, KTH-Royal Institute of Technology, Stockholm, Sweden.
    Optimizing the yield and physico-chemical properties of pine cone cellulose nanocrystals by different hydrolysis time2018In: Cellulose (London), ISSN 0969-0239, E-ISSN 1572-882X, Vol. 25, no 5, p. 2925-2938Article in journal (Refereed)
    Abstract [en]

    Cellulose nanocrystals (CNCs) were isolated for the first time from pine cones (PC) by alkali and bleaching treatments and subsequent sulfuric acid hydrolysis (64%) at 45 degrees C. The influence of the hydrolytic reaction time (30, 45, and 90 min) on the yield, chemical composition and structure, and thermal stability of CNCs was evaluated. The removal of non-cellulosic constituents during the alkaline and bleaching treatment resulted in high pure cellulosic fibres. The isolation of CNCs from these cellulosic fibres at different reaction times was verified by the nano-dimensions of the individual crystals (< 3 and < 335 nm of average diameter and length, respectively). The highest yield (15%) and the optimum CNCs properties in terms of aspect ratio, thermal stability and crystallinity were obtained for an extraction time of 45 min. PC appeared to be a new promising source of cellulose fibres and CNCs with potential to be applied as reinforcement in composites and for food-packaging.

  • Aaboud, M.
    et al.
    Univ Mohamed Premier, Fac Sci, Oujda, Morocco; LPTPM, Oujda, Morocco.
    Bergeås Kuutmann, Elin
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Bokan, Petar
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics. Georg August Univ, Phys Inst 2, Gottingen, Germany.
    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. Joakim
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Isacson, Max F.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Maddocks, H. J.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Mårtensson, Mikael U.F.
    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.
    Rangel Smith, Camila
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Sales De Bruin, Pedro H.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Zwalinski, L.
    CERN, Geneva, Switzerland.
    Measurement of quarkonium production in proton-lead and proton-proton collisions at 5.02 TeV with the ATLAS detector2018In: European Physical Journal C, ISSN 1434-6044, E-ISSN 1434-6052, Vol. 78, no 3, article id 171Article in journal (Refereed)
    Abstract [en]

    The modification of the production of J/psi, psi(2S), and gamma (nS) (n = 1, 2, 3) in p+Pb collisions with respect to their production in pp collisions has been studied. The p+Pb and pp datasets used in this paper correspond to integrated luminosities of 28 nb(-1) and 25 pb(-1) respectively, collected in 2013 and 2015 by the ATLAS detector at the LHC, both at a centre-of-mass energy per nucleon pair of 5.02 TeV. The quarkonium states are reconstructed in the dimuon decay channel. The yields of J/psi and psi(2S) are separated into prompt and non-prompt sources. The measured quarkonium differential cross sections are presented as a function of rapidity and transverse momentum, as is the nuclear modification factor, R-pPb for J/psi and psi (nS). No significant modification of the J/psi production is observed while gamma (nS) production is found to be suppressed at low transverse momentum in p+Pb collisions relative to pp collisions. The production of excited charmonium and bottomonium states is found to be suppressed relative to that of the ground states in central p+Pb collisions.

  • Albjär, Göran
    Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Physical Geography.
    Sandgrunnorna in Lule Archipelago: Recent Transformation of a Glaciofluvial Deposit in an Environment of Land Uplift1985Licentiate thesis, monograph (Other academic)
    Abstract [en]

    In an area of rapid land uplift the geomorphological evolution of the glaciofluvial island of Sandgrunnorna, 25 km SE Luleå, in the Bothnian Bay, is discussed from old maps, air photographs and field studies. The island were marked on a map for the first time in 1790, but the highest parts can be estimated to have reached the sea surface about 100 years earlier. The areal growth has been reconstructed by map and air photograph studies. A model of the geomorphological evolution based on the interaction between bottom morphology, land uplift and waves is presented.

  • Public defence: 2018-06-15 10:15 F104, Trollhättan
    Ganvir, Ashish
    University West, Department of Engineering Science, Division of Subtractive and Additive Manufacturing.
    Design of Suspension Plasma Sprayed Thermal Barrier Coatings2018Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    Thermal barrier coatings (TBCs) are widely used on gas turbine components to provide thermal insulation, which in combination with advanced cooling, can enable the gas turbine to operate at significantly higher temperatures even above the melting temperature of the metallic components. There is a permanent need,mainly due to environmental reasons, to increase the combustion temperature inturbines, hence new TBC solutions are needed. By using a liquid feedstock in thermal spraying, new types of TBCs can be produced. Suspension plasma/flame or solution precursor plasma spraying are examples of techniques that can be utilized for liquid feedstock thermal spraying. This approach of using suspension and solution feedstock, which is an alternative to the conventional solid powder feedstock spraying, is gaining increasing research interest since it has been shown to be capable of producing coatings withsuperior performance. The objective of this research work was to identify relationships between process parameters, coating microstructure, thermal conductivity and lifetime in suspension plasma sprayed TBCs. A further objective was to utilize these relationships to enable tailoring of the TBC microstructure for superior performance compared to state-of-the-art TBC used in industry today, i.e. solid feedstock plasma sprayed TBCs. Different spraying techniques, namely suspension high velocity oxy fuel, solution precursor plasma and suspension plasma spraying (with axial and radial feeding) were explored and compared to solid feedstock plasma spraying. A variety of microstructures, such as highly porous, vertically cracked and columnar, were produced and investigated. It was shown that there are strong relationships between microstructure, thermo-mechanical properties and performance of the coatings. Specifically, axial suspension plasma spraying wasshown as a very promising technique to produce various microstructures as wellas highly durable coatings. Based on the experimental results, a tailored columnar microstructure design for a superior TBC performance is also proposed.

  • Leblanc, André
    L'Expression de la mauvaise conscience dans l'oeuvre de Benjmain Constant2008Doctoral thesis, monograph (Other academic)
    Abstract [en]

    The study of a transversal theme such as bad conscience in the work of Constant requires a particular methodology. The lack of homogeneity in the writings of this author disqualifies both biographical and generic approaches, and a holistic perspective is required. An investigation into the moral consequences of bad conscience offers the possibility of both taking the diversity of the writings into account and of entering upon the enticing question of sincerity, which is infallibly linked to every study of bad conscience in literature. This study demonstrates how the moral categories composing the psychological affect represented by bad conscious are realised in the work of Constant. In this study the four main types of his work, writings on religion, politics, literary writings and personal writings, have been compared. First from the angle of remorse, which has been demonstrated to serve as the object of controversy in the relations between people in Constant’s theoretical writings. Remorse is also the most obvious manifestation of bad conscience in his literary and personal writing. Secondly, the philosophical ground for suffering is emphasized and thereafter it is shown that suffering is altogether the cause and effect of bad conscience in his literary and personal writing. Thirdly the characteristics of dissimulation are distinguished so that dissimulation forms the base of Constant’s condemnation of the instances that tried to dominate mankind by making it guilty as well as the origin of guilty behaviour both in his characters and in the author himself.

  • Bauer, Bjørn
    et al.
    Watson, David
    Gylling, Anja
    Remmen, Arne
    Lysemose, Michael Hauris
    Hohenthal, Catharina
    Jönbrink, Anna-Karin
    Policy Brief - Ecodesign Requirements for Textiles and Furniture: Eco design requirements that can be drawn up for non-energy-related products are in focus2018Other (Other (popular science, discussion, etc.))
    Abstract [en]

    Policy Brief: Ecodesign Requirements for Textiles and Furniture The EU Eco design Directive’s potential for application to nonenergy related themes has come under the spotlight in recent years with Nordic countries at the forefront. A large part of the lifecycle environmental impacts of a product are determined at the design stage.

    In this report potential eco design requirements that can be drawn up for non-energy-related products are in focus. Textiles are here used as an example, and a light application of the approach has subsequently been applied to the furniture sector. Clothing and home textiles were chosen due to significant wastage in the value chain due to fast fashion, dropping quality and relatively low repair and reuse rates.

    The project was initiated, financed and steered by the Nordic Council of Ministers’ Working Group for Sustainable Consumption and Production and carried out by a consultant team led by PlanMiljø.

  • Olsson, Jens
    et al.
    Institutionen för akvatiska resurser, Sveriges lantbruksuniversitet .
    Jonsson, Anna_Li
    Institutionen för akvatiska resurser, Sveriges lantbruksuniversitet .
    Duberg, Jon
    Institutionen för akvatiska resurser, Sveriges lantbruksuniversitet .
    Lingman, Anna
    Institutionen för akvatiska resurser, Sveriges lantbruksuniversitet .
    Naddafi, Rahamat
    Institutionen för akvatiska resurser, Sveriges lantbruksuniversitet .
    Förlin, Lars
    Institutionen för biologi och miljövetenskap, Göteborgs Universitet .
    Parkkonen, Jari
    Institutionen för biologi och miljövetenskap, Göteborgs Universitet .
    Larsson, Åke
    Institutionen för biologi och miljövetenskap, Göteborgs Universitet .
    Asker, Noomi
    Institutionen för biologi och miljövetenskap, Göteborgs Universitet .
    Sturve, Joachim
    Institutionen för biologi och miljövetenskap, Göteborgs Universitet .
    Ek, Caroline
    Swedish Museum of Natural History, Department of Environmental research and monitoring.
    Faxneld, Suzanne
    Swedish Museum of Natural History, Department of Environmental research and monitoring.
    Nyberg, Elisabeth
    Swedish Museum of Natural History, Department of Environmental research and monitoring.
    Miljön i Hanöbukten 2015-2017  – finns det ett samband mellan tillståndet för fisken, dess hälsa och belastningen av miljöfarliga ämnen?2018Report (Other academic)
  • Public defence: 2018-06-15 10:00 Sal C, Electrum, Stockholm
    Zhang, Miao
    KTH, School of Engineering Sciences (SCI), Applied Physics, Materials and Nanophysics. KTH Royal Institute of Technology.
    Silicon Nanopore Arrays: Fabrication and Applications for DNA Sensing2018Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    Nanopore biomolecule sensing and sequencing has emerged as a simple but powerful tool for single molecule studies over the past two decades. By elec- trophoretically driving single molecules through a nanometer-sized pore, often sitting in an insulating membrane that separates two buffer solutions, ionic current blockades can be detected to reveal rich information of the molecules, such as DNA length, protein size and conformation, even nucleic acid se- quence. Biological protein pores, as well as solid-state nanopores have been used, but both suffer from relatively low throughput due to the lack of abil- ity to scale up to a large array. In this thesis, we tackled the throughput issue from the fabrication aspect as well as from the detection aspect, aim- ing at a parallel optical single molecule sensing on an array of well-separated nanopores.

    From the fabrication aspect, several lithography-based self-regulating meth- ods were tested to obtain nanopore arrays in silicon membranes, including anisotropic KOH etching, thermal oxidation-induced pore shrinkage, metal- assisted etching and electrochemical etching. Among those, the most success- ful method was the electrochemical etching of silicon. By electron-beam or photo lithography, the positions of the pores were defined on a silicon mem- brane. Followed by anisotropic KOH etching, inverted pyramids were formed as etching pits. The nanopores were then formed by anodic etching of silicon in HF. Using this concept, the size of the pores does not depend on the lithog- raphy step; only the positions of pores were defined by lithography. In this way, an array of ∼ 900 pores with an average entrance diameter of 18 ± 4 nm was fabricated on a 120 μm × 120 μm membrane.

    From the detection aspect, parallel readout of fluorescence signals from the labelled DNA molecules while translocating through an array of nanopores was performed using a wide-field microscope with a relatively fast CMOS camera recording at 1 KHz frame rate. Statistics of duration and frequency of the translocation events were extracted and studied. It was found that the event duration decreases with rising excitation laser power. This can be attributed to a laser-induced heating effect. Simulation suggested that a sig- nificant thermal gradient was generated at the pore vicinity by the excitation laser due to photon absorption by the silicon membrane. Such temperature rise affects all mass transport in a solution via a viscosity change. The ther- mal effect has also been proven by that conductance of an array of nanopores scales with the laser power. The thermal effect on the translocation frequency has been studied systematically as well. Due to thermophoresis of DNA in a thermal gradient, the thermophoretic force serves as a repulsion force, op- posing the electrophoretic force at the pore vicinity, depleting molecules away from the pore. Because of the molecule-size-dependent thermal depletion, a size-dependent translocation frequency was observed. This can be potentially used for a high throughput molecule sorting by adjusting the balance between the thermophoretic force and the electrophoretic force.

  • Goronzy, I. N.
    et al.
    Stanford Univ, Dept Chem, Stanford, CA 94305 USA..
    Rawle, R. J.
    Univ Virginia, Dept Mol Physiol & Biomed Engn, Box 800886, Charlottesville, VA 22908 USA..
    Boxer, S. G.
    Stanford Univ, Dept Chem, Stanford, CA 94305 USA..
    Kasson, Peter M.
    Uppsala University, Science for Life Laboratory, SciLifeLab. Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Cell and Molecular Biology, Molecular Biology. Univ Virginia, Dept Mol Physiol & Biomed Engn, Box 800886, Charlottesville, VA 22908 USA..
    Cholesterol enhances influenza binding avidity by controlling nanoscale receptor clustering2018In: Chemical Science, ISSN 2041-6520, E-ISSN 2041-6539, Vol. 9, no 8, p. 2340-2347Article in journal (Refereed)
    Abstract [en]

    Influenza virus infects cells by binding to sialylated glycans on the cell surface. While the chemical structure of these glycans determines hemagglutinin-glycan binding affinity, bimolecular affinities are weak, so binding is avidity-dominated and driven by multivalent interactions. Here, we show that membrane spatial organization can control viral binding. Using single-virus fluorescence microscopy, we demonstrate that the sterol composition of the target membrane enhances viral binding avidity in a dose-dependent manner. Binding shows a cooperative dependence on concentration of receptors for influenza virus, as would be expected for a multivalent interaction. Surprisingly, the ability of sterols to promote viral binding is independent of their ability to support liquid-liquid phase separation in model systems. We develop a molecular explanation for this observation via molecular dynamics simulations, where we find that cholesterol promotes small-scale clusters of glycosphingolipid receptors. We propose a model whereby cholesterol orders the monomeric state of glycosphingolipid receptors, reducing the entropic penalty of receptor association and thus favoring multimeric complexes without phase separation. This model explains how cholesterol and other sterols control the spatial organization of membrane receptors for influenza and increase viral binding avidity. A natural consequence of this finding is that local cholesterol concentration in the plasma membrane of cells may alter the binding avidity of influenza virions. Furthermore, our results demonstrate a form of cholesterol-dependent membrane organization that does not involve lipid rafts, suggesting that cholesterol's effect on cell membrane heterogeneity is likely the interplay of several different factors.

  • Qvarfordt, Mikaela
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Occupational and Environmental Medicine. Karolinska Univ Sjukhuset, Dept Lab Med, Div Clin Physiol, Stockholm, Sweden..
    Anderson, Martin
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Occupational and Environmental Medicine. Karolinska Univ Sjukhuset, Dept Lab Med, Div Clin Physiol, Stockholm, Sweden..
    Svartengren, Magnus
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Occupational and Environmental Medicine.
    Quality and learning aspects of the first 9000 spirometries of the LifeGene study2018In: NPJ primary care respiratory medicine, ISSN 2055-1010, Vol. 28, article id 6Article in journal (Refereed)
    Abstract [en]

    Spirometry requires the patient to cooperate and do the manoeuvre 'right' for reliable results. Algorithms to assess test quality as well as educational recommendations for personnel are defined in guidelines. We compared the quality of forced spirometry tests performed by spirometry technicians with little or no previous experience of spirometry using spirometry systems with different modes of feedback. In both cases, the spirometry technician received general feedback on the screen based on ATS/ERS guidelines, such as 'exhale faster' and 'exhale longer'. The major difference was whether quality grading system of the complete session was available simultaneously on screen, or in the printed report afterwards. Two parts of the same population-based study (LifeGene), the pilot (LG1) and the first part (LG2) of the subsequent study, were compared retrospectively. In LG1 (on-screen grading) approved examination quality was achieved for 88% of the 10 first subjects for each spirometry technician compared to 70% in LG2 (printed grading afterwards). The corresponding values after 40 subjects was 94 % in LG1, compared to 73% in LG2, and after the first ten subjects there was no apparent quality improvement in either LG1 or LG2. The quality for LG1 is among the highest reported in the literature even though the spirometry technician were relatively inexperienced. We conclude that on-screen grading in addition to general technical quality feedback is powerful in enhancing the spirometry test session quality.

  • Boström, Curt-Åke
    et al.
    Executive, Forskningsinstitut, IVL Swedish Environmental Research Institute.
    Flodström, Eje
    Executive, Forskningsinstitut, IVL Swedish Environmental Research Institute.
    Cooper, David
    Executive, Forskningsinstitut, IVL Swedish Environmental Research Institute.
    Emissionsfaktorer för stationär förbränning2004Report (Other academic)
  • Blombäck, Karin
    et al.
    Executive, Universitet, Swedish University of Agricultural Sciences.
    Persson, Kristian
    Executive, Universitet, Swedish University of Agricultural Sciences.
    Utveckling av mer platsberoende parameterisering av ICECREAMDB2009Report (Other academic)
    Abstract [en]

    Previous comparisons of measured phosphorus (P) losses and simulated

    results obtained using the ICECREAMDB model revealed certain

    systematic deviations that could be attributed to soil texture in the study

    areas. In the previous investigation, simulations were performed with the

    standard parameterisations for different soil textures that are used for the

    PLC5 calculations. Before the next set of PLC we therefore deemed it

    important to review the generality of soil texture-related parameterisation

    and to make an assessment of its site-specificity. This report describes

    preliminary work in which soil texture-related PLC5 parameterisation and

    more site-specific parameterisation were tested in three different fields

    included in the environmental monitoring programme ‘Observation fields

    on arable land’. The soil texture in these fields consists of sandy loam and

    loam and the fields were chosen because they represent soils that occur in

    all leaching regions of Sweden, corresponding to over 50% of the

    agricultural area in 12 of the 22 regions, and therefore play an important role

    in calculation of the regional leaching coefficients.

    The results showed that the standard parameterisations from the PLC5

    calculations used for the ICECREAMDB model generally functioned well

    as regards capturing the run-off pattern in the three observation fields for

    simulation of 5-9 year periods. Starts and stops of run-off events were

    captured but the size of the peak flows as well as the accumulated run-off

    were underestimated. In contrast, the simulated results of P losses, both

    total-P and dissolved-P, were overestimated with the standard

    parameterisations.The site-specific parameterisation further underestimated

    run-off, while overestimation of total-P losses decreased.

    In the tests on site-specific parameterisation, the value given to the water

    storage capacity in the soil, i.e. porosity, field capacity and wilting point,

    was critically important for total run-off and for the distribution of flows

    between surface run-off, macropore flow and flow in the micropore region.

    Since water flows in turn control P flows in the model, these parameters

    were also highly important for the P flows. Small changes in clay content

    and pH both had a large impact on simulated P losses. Not in any of the

    cases did the site-specific parameterisation improve the simulated results

    compared to parameterisation according to PLC5.

    The study presented was an introductory test of a few of the standard

    parameterisations used for the PLC5 calculations. A continued study,

    financed by the SLU Environmental mentoring and assessment program will

    be performed during 2009 to cover more soil types and a broader spectrum

    of climatic variations.

  • Øian, Hogne
    et al.
    Fredman, Peter
    Sandell, Klas
    Sæþórsdóttir, Anna Dóra
    Tyrväinen, Liisa
    Jensen, Frank Søndergaard
    Tourism, nature and sustainability: A review of policy instruments in the Nordic countries2018Book (Other academic)
    Abstract [en]

    Recently, the Nordic countries have experienced a rapid growth in numbers of visitors. At some popular nature attractions this has resulted in crowding, environmental damage, costly rescue operations and overload on public infrastructure. Implementation of economic policy instruments have hence been suggested to secure a more sustainable development. While the applicability of e.g. entrance fees is restricted by the public rights of access, economic instruments tend to represent short-sighted solutions. Sustainable development requires holistic policies, which take environmental, social and economic aspects into consideration in a long-term perspective. To achieve a more sustainable development of tourism, it is suggested that a limited use of economic instrument should take place in combination with adaptive management strategies and available legal and administrative instruments.

  • Erlingsson, Sigurdur
    et al.
    Swedish National Road and Transport Research Institute, Infrastructure, Pavement Technology.
    Carlsson, Håkan
    Swedish National Road and Transport Research Institute, Infrastructure, Measurement technology and engineering workshop.
    Testplatser för 74 ton tunga fordon: två instrumenterade tunna vägkonstruktioner2018Report (Other academic)
    Abstract [en]

    This VTI note describes briefly the construction and instrumentation of two new test road structures that have been built during the autumn 2017 on Lv373 and Lv515 respectively in Norrbotten County in northern Sweden. One structure is placed on Lv373 east of the village Långträsk while the other structure is on Lv515 south if the intersection with Lv373. The distance between the two locations is about 10 km. Both structures are thin pavement structures. The main objective of the two new test sites is to estimate the impact that the new 74 tonnes vehicles have on the Swedish road network. This will be done through direct measurements of the pavement response from the road sensors. The sensors consist of horizontal strain sensors in both longitudinal and transversal direction at the bottom of the asphalt layer as well as vertical strain sensors over every layer down to 1.2 m depth. Soil pressure cells are further installed at two depths. The local ambient climate is monitored as well. A frost and a moisture rod were therefore installed. Further are temperature sensors installed in the asphalt concrete. Two weather stations are located within 20 km distances from the test structures. The first response measurements are planned in the late summer or early autumn 2018.

  • Ekebom, Agneta
    et al.
    Swedish Museum of Natural History, Department of Environmental research and monitoring.
    Dahl, Åslög
    Göteborgs universitet.
    Pollensäsongen 2017: Sammanställning av pollenförekomsten i Sverige2018Report (Other academic)
  • Nikander, Hannele
    et al.
    Andersson, Agnes
    Sverdlilje, Vanja
    Jakobsen, Dorte
    Shipping green-listed waste2018Other (Other (popular science, discussion, etc.))
    Abstract [en]

    This guidance gives information on the requirements related to shipping of green-listed waste. As a general rule, a permit is required for transfrontier shipments of waste. Shipments of non-hazardous, so-called green-listed waste for recovery constitute an exception to this rule.

    The legal background is set forth in the Regulation (EC) No. 1013/2006 on shipments of waste. Articles 3 and 18 of the Regulation concern shipments of green-listed waste

  • Pröjts, Jan
    Ekologgruppen.
    Inventering av sirlig skivsnäcka (Anisus vorticulus) i Skåne 20172017Report (Other academic)
    Abstract [sv]

    Rapporten redovisar resultatet från eftersök av sirlig skivsnäcka (Anisus vorticulus) på 49 potentiella lokaler i Skåne 2017. Inventeringen har gjorts på uppdrag av Länsstyrelsen Östergötland inom ramen för biogeografisk uppföljning. Syftet har varit att återfinna arten på någon av sina få tidigare kända lokaler och om möjligt finna den på nya. Sirlig skivsnäcka är mycket sällsynt i Sverige och har aldrig hittats utanför Skåne. Arten är fridlyst och klassas som sårbar (VU) på den nationella rödlistan och är upptagen i Habitatdirektivets bilaga 2 och 4. Inga fynd av arten gjordes vid inventeringen men blåssnäcka och flera andra naturvårdsintressanta arter påträffades. Ytterligare lämpliga lokaler för sirlig skivsnäcka kan finnas att undersöka i "storklandskapet" längs med Klingavälsån mellan Sövdesjön och Kävlingeån.

  • Blombäck, Karin
    et al.
    Executive, Universitet, Swedish University of Agricultural Sciences.
    Mårtensson, Kristina
    Executive, Universitet, Swedish University of Agricultural Sciences.
    Johnsson, Holger
    Executive, Universitet, Swedish University of Agricultural Sciences.
    Översyn av läckagekoefficienter för N-läckage från lerjordar2012Report (Other academic)
    Abstract [sv]

    I samband med retentionsberäkningar i vissa avrinningsområden med åker på ler-jordar har problem uppstått med låga bruttobelastningar. Detta skulle kunna bero på för låga kvävehalter för lerjordar som använts som indata. En översyn har därför utförts av de beräknade kväveläckagekoefficienterna för jordbruksmark för styv lera (clay) från TRK och PLC5.

    För att kunna jämföra utveckling och förändringar av metoden för beräkningar av läckagekoefficienterna (NLeCCS) mellan TRK och PLC5 har beräkningar för år 1999 utförda inom ramen för TRK projektet jämförts med senare utförda beräk-ningar för 1999 med PLC5-metoden. För att utvärdera hur förändringarna mellan de två metoderna påverkat utlakningen från lerjordarna har beräkningen för 1999 med PLC5-metoden använts som utgångspunkt och manipulerats för att utvärdera enskilda förändringar mellan de två metoderna. Effekten av förändringar av rotdjup för clay, ändrad klimatperiod (och målavrinning), ogräsupptag, vallinsådd, vårbe-arbetning, rotdjup för träda och halt organiskt material i marken beräknades. För-ändringen av rotdjup för vissa grödor påverkade bara beräkningen för clay medan de övriga förändringarna som testats även påverkade beräkningen för de övriga jordarna. Förändringen av rotdjupet av vissa grödor ökade koncentrationen för clay i alla regioner och ändrad klimatperiod gav både ökade och minskade koncentrat-ioner i regionerna. I region 4 och 6 gav ändrat rotdjup för clay och ändrad klimat-period ungefär samma koncentration med PLC5-metoden som med TRK-metoden.

    En genomgång av uppmätta kvävehalter från rutförsök, observationsfält och ty-pområden på jordbruksmark som domineras av styv lera har gjorts. I dessa områ-den varierade långtidsmedelvärdena mellan 3,3 och 5,3 mg NO3-N/l. I motsva-rande regioner (4, 5a och 6) var de beräknade koncentrationerna i TRK i samma storleksordning, medan koncentrationerna beräknade med PLC5-metodiken var något lägre.

    Med FyrisNP simulerades N-transport från ett avrinningsområde dominerat av styv lera med användning av läckagekoefficienter (PLC5-metodik), lokal grödfördel-ning och förbättrad jordartskarta. Simuleringarna kunde inte uppnå uppmätta N-koncentrationer i utloppspunkten för område U8 (Figur 27), varken med koeffici-enterna från TRK eller PLC5 med regional eller lokal grödfördelning. Den bästa överenskommelsen med uppmätta värden nåddes då läckagekoefficienterna från PLC5 räknades upp 2,5 gång.

  • Public defence: 2018-09-21 10:00 rum 4301, Stockholm
    Zheng, Weisen
    KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering.
    Thermodynamic and kinetic investigation of systems related to lightweight steels2018Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    Lightweight steels have attracted considerable interest for automobile applications due to the weight reduction without loss of high strength and with retained excellent plasticity. In austenitic Fe-Mn-Al-C steels, the nano-precipitation of the κ-carbide within the austenitic matrix significantly contributes to the increase in yield strength. In the present work, the precipitation strengthening simulation has been carried out within the framework of the ICME approach. Thermodynamic assessments of the quaternary Fe-Mn-Al-C system as well as its sub-ternary systems were performed with the CALPHAD method. All available information on phase equilibria and thermochemical properties were critically evaluated and used to optimize the thermodynamic model parameters. By means of the partitioning model, the κ-carbide was described using a five-sublattice model (four substitutional and one interstitial sublattice), which can reflect the ordering between metallic elements and reproduce the wide homogeneity range of the κ-carbide. Based on the present thermodynamic description, a thermodynamic database for lightweight steels was created. Using the database, the phase equilibria evolution in lightweight steels can be satisfactorily predicted, as well as the partition of alloying elements. In order to accelerate the development of a kinetic database for multicomponent systems, a high-throughput optimization method was adopted to optimize the diffusion mobilities. This method may largely reduce the necessary diffusion-couple experiments in multicomponent systems. Based on the developed thermodynamic and kinetic databases for lightweight steels, the precipitation of the κ-carbide was simulated using TC-PRISMA. The volume fraction and particle size were reasonably reproduced. Finally, the precipitation strengthening contribution to the yield strength was predicted. The calculation results show that the anti-phase boundary effect is predominant in the precipitation strengthening. Overall, the relationship between the composition, processing parameters, microstructure and mechanical properties are established in the thesis.

  • Ghosh, Arpan
    et al.
    Linköping University, Department of Mathematics, Mathematics and Applied Mathematics. Linköping University, Faculty of Science & Engineering.
    Kozlov, Vladimir
    Linköping University, Department of Mathematics, Mathematics and Applied Mathematics. Linköping University, Faculty of Science & Engineering.
    Nazarov, Sergei A.
    St Petersburg State University, Russia; St Petersburg State Polytech University, Russia.
    Rule, David
    Linköping University, Department of Mathematics, Mathematics and Applied Mathematics. Linköping University, Faculty of Science & Engineering.
    A Two Dimensional Model of the Thin Laminar Wall of a Curvilinear Flexible Pipe2018Report (Other academic)
    Abstract [en]

    We present a two dimensional model describing the elastic behaviour of the wall of a curved pipe to model blood vessels in particular. The wall has a laminate structure consisting of several anisotropic layers of varying thickness and is assumed to be much smaller in thickness than the radius of the vessel which itself is allowed to vary. Our two-dimensional model takes the interaction of the wall with the surrounding material and the fluid flowing inside into account and is obtained via a dimension reduction procedure. The curvature and twist of the vessel axis as well as the anisotropy of the laminate wallpresent the main challenges in applying the dimension reduction procedure so plenty of examples of canonical shapes of vessels and their walls are supplied with explicit systems of dierential equations at the end.

  • Abbey-Lee, Robin N.
    et al.
    Linköping University, Department of Physics, Chemistry and Biology, Biology. Linköping University, Faculty of Science & Engineering.
    Uhrig, Emily J.
    Department of Zoology, Stockholm University, 10691 Stockholm, Sweden.
    Zidar, Josefina
    Linköping University, Department of Physics, Chemistry and Biology, Biology. Linköping University, Faculty of Science & Engineering.
    Favati, Anna
    Department of Zoology, Stockholm University, 10691 Stockholm, Sweden.
    Almberg, Johan
    Linköping University, Department of Physics, Chemistry and Biology, Biology. Linköping University, Faculty of Science & Engineering.
    Dahlblom, Josefin
    Department of Neuroscience, Uppsala Biomedical Centre BMC, Uppsala University, Uppsala, Sweden.
    Winberg, Svante
    Department of Neuroscience, Uppsala Biomedical Centre BMC, Uppsala University, Uppsala, Sweden.
    Løvlie, Hanne
    Linköping University, Department of Physics, Chemistry and Biology, Biology. Linköping University, Faculty of Science & Engineering.
    The influence of rearing on behavior, brain monoamines and gene expression in three-spined sticklebacks2018Data set
    Abstract [en]
    1. The causes of individual variation in behavior are often not well understood, and potential underlying mechanisms include both intrinsic and extrinsic factors, such as early environmental, physiological, and genetic differences.
    2. In an exploratory laboratory study, we raised three-spined sticklebacks (Gasterosteus aculeatus) under 4 different environmental conditions (simulated predator environment, complex environment, variable social environment, and control). We investigated how these manipulations related to behavior, brain physiology and gene expression later in life, with focus on brain dopamine and serotonin levels, turnover rates, and gene expression.
    3. The different rearing environments influenced behavior and gene expression, but did not alter monoamine levels or metabolites. Specifically, compared to control fish, fish exposed to a simulated predator environment tended to be less aggressive, more exploratory, and more neophobic; and fish raised in both complex and variable social environments tended to be less neophobic. Exposure to a simulated predator environment tended to lower expression of dopamine receptor DRD4A, a complex environment increased expression of dopamine receptor DRD1B, while a variable social environment tended to increase serotonin receptor 5-HTR2B and increased serotonin transporter SLC6A4A expression. Despite both behavior and gene expression varying with early environment, there was no evidence that gene expression mediated the relationship between early environment and behavior.
    4. Our results confirm that environmental conditions early in life can affect phenotypic variation. However, the mechanistic pathway of the monoaminergic systems translating early environmental variation into observed behavioral responses was not detected.
  • Svensson, Martin
    et al.
    Blekinge Institute of Technology, Faculty of Engineering, Department of Industrial Economics.
    Pesämaa, Ossi
    Luleå tekniska Universitet, SWE.
    How does a caller's anger, fear and sadness affect operators' decisions in emergency calls?2018In: International Review of Social Psychology, ISSN 2397-8570, Vol. 31, no 1, article id 89Article in journal (Refereed)
    Abstract [en]

    We studied how emergency operators' interpretation of callers' anger, fear, and sadness influenced emergency assessments in 146 authentic emergency calls. All emergency calls need to be decided on quickly and operators discriminated emotional expressions, by separating fear from other emotions across help need levels. Using path analysis and structural equation modeling, caller's fear, as opposed to expressions of anger and sadness, showed both direct and indirect effects on the intention to provide help. Based on the findings, emergency operators are argued to actively incorporate callers' expressions into emergency decisions, rather than peripherally processing emotional expression. Such findings allow for a discussion on the interpersonal effects of emotional expressions and, more practically, how fast help will be able to arrive to the location of the emergency. © 2018 Ubiquity Press Ltd. All rights reserved.

  • Public defence: 2018-06-11 10:15 Planck, Fysikhuset, Linköping
    Meshkian, Rahele
    Linköping University, Department of Physics, Chemistry and Biology, Thin Film Physics. Linköping University, Faculty of Science & Engineering.
    Synthesis and characterization of Mo- and W-based atomic laminates2018Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    Mn+1AXn (MAX) phases are inherently nanolaminated compounds based on transition metals (M), A group elements (A), and carbon or/and nitrogen (X), which exhibit a unique combination of ceramic and metallic properties. My thesis work has focused on exploring novel MAX phase chemistries, including elemental combinations beyond those traditionally used for MAX phases, and their graphene-analogous 2D counterpart, MXenes.  

    The first part of the thesis investigates Mo-based MAX phases, which are among the least studied, despite indication of superconducting properties and potential for derivation of Mo-based MXenes. Initially, I performed theoretical calculations focused on evaluation of phase stability of the Mon+1GaCn MAX phases, and synthesized the predicted stable Mo2GaC in thin film form using DC magnetron sputtering. Close to phase pure epitaxial films were grown at ~590 °C, and electrical resistivity measurements using a four-point probe technique suggest a superconducting behavior with a critical temperature of ~7 K. The follow-up of this work, was synthesis of a new MAX related material, Mo2Ga2C, also by means of DC magnetron sputtering. The theoretical predictions as well as the materials characterization by X-ray diffraction and neutron powder diffraction, suggested a Ga bilayer interleaved between a set of Mo2C blocks, arranged in a simple hexagonal structure.   

    It is known that selectively etching of the A-layer in a MAX phase, shown for A=Al, can lead to realization of a MXene. Hence, the next step in my research was to explore the possibility of etching of A=Ga in Mo2GaC as well as in Mo2Ga2C, targeting a Mo2C MXene, as motivated by theoretically proposed superior thermoelectric properties of this 2D material. While Mo2GaC did not allow removal of the A-layer, I showed that Mo2C MXene could be realized from etching Mo2Ga2C thin films, removing the Ga bilayer, in 50% hydrofluoric acid at a temperature of ~50 °C for a duration of ~3 h. Hence, the results did not only produce the first Mo-based MXene, it also showed that MXenes can be obtained for etching A-elements other than Al. This, in turn, increase the pathways for expanding the family of MXenes.    

    I thereafter set out to explore the magnetic properties resulting from Mn-alloying of the non-magnetic Mo2GaC MAX phase. For that purpose, (Mo,Mn)2GaC was synthesized using a  DC magnetron sputtering system with Ga and C as elemental targets and a 1:1 atomic ratio  Mo:Mn compound target. Heteroepitaxial films on MgO(111) substrates were grown at  ~530 °C, as confirmed by X-ray diffraction. Compositional analysis using energy dispersive X-ray spectroscopy showed a 2:1 ratio of the M- and A-elements and a 1:1 ratio for the Mo and Mn atoms in the film. Vibrating sample magnetometry was utilized to measure the magnetic behavior of the films, showing a magnetic response up to at least 300 K, and with a coercive field of 0.06 T, which is the highest reported for any MAX phase to date.  

    The second part of my research has been dedicated to realizing new MAX phase related, chemically ordered compounds and their MXene derivatives, and to initiate exploration of their properties. Materials synthesis was performed by pressureless bulk sintering, and inspired by theoretical calculations we showed evidence for a new so called o-MAX phase, Mo2ScAlC2, with an out-of-plane chemically ordered structure. It is the first experimentally verified Sc-containing MAX phase, which makes its corresponding MXene, Mo2ScC2, also presented in this work, the first MXene including Sc. Moreover, I discovered two so called i-MAX phases including W, (W2/3Sc1/3)2AlC and (W2/3Y1/3)2AlC, which display in-plane chemical ordering in the M-layer. Furthermore, both was shown to allow synthesis of their corresponding 2D counterpart; W1.33C MXene, with ordered vacancies.  Initial test on these novel MXenes showed a high potential for hydrogen evolution reaction.  

    Altogether, I have in my thesis work realized 6 novel MAX phases and related materials, and have shown evidence for 4 new MXenes. These materials inspire a wide range of future studies, with respect to fundamental properties as well as potential for future applications.   

  • Public defence: 2018-06-14 10:00 Zootissalen, Uppsala
    Trunschke, Judith
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Plant Ecology and Evolution.
    Pollinator-mediated selection and the evolution of floral traits in orchids2018Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    In this thesis, I combined manipulations of traits and pollination environment with analysis of phenotypic selection to examine causes of variation in strength and mode of selection on floral traits, and I conducted a reciprocal sowing experiment to test for local adaptation in germination success. I tested the following predictions (1) the opportunity for selection, and the strength of pollinator-mediated and net selection increase with increasing pollen limitation, (2) the effects of traits affecting pollinator attraction and traits affecting pollination efficiency are non-additive and this leads to pollinator-mediated correlational selection, (3) the effects of spur length on pollen removal, pollen receipt, and female fitness differ between populations with short-tongued and populations with long-tongued pollinators, and (4) local adaptation at the stage of germination contributes to the maintenance of ecotypes growing in grasslands and woodlands, respectively.

    A study including natural populations of 12 orchid species that varied widely in pollen limitation showed that opportunity for selection, pollinator-mediated selection and net selection were all positively related to pollen limitation, whereas non-pollinator-mediated selection was not. In the moth-pollinated orchid Platanthera bifolia, experimental reductions of plant height and spur length decreased pollen removal, pollen receipt and fruit production, but non-additive effects were not detected. Effects of plant height translated into pollinator-mediated selection for taller plants via female fitness, but there was no current pollinator-mediated selection on spur length. An experiment using artificial nectar spurs demonstrated that in P. bifolia pollen receipt saturated at shorter spur length in a population with short-tongued pollinators than in a population with a long-tongued pollinator. Effects of spur length on pollen receipt did not translate into current pollinator-mediated selection indicating that also plants with the shortest spurs for the most part received sufficient pollen for full seed set. Reciprocal sowing of seeds from grassland and woodland populations detected no evidence of local adaptation at the germination stage between ecotypes of P. bifolia.

    Taken together, the results illustrate how a combination of trait manipulation and analysis of strength and causes of selection can throw light on both the functional and adaptive significance of trait variation within and among natural populations.

  • Mathur, Aditya
    et al.
    RD Gardi Med Coll, Dept Paediat, Ujjain 456006, Madhya Pradesh, India..
    Mehra, Love
    RD Gardi Med Coll, Dept Paediat, Ujjain 456006, Madhya Pradesh, India..
    Diwan, Vishal
    RD Gardi Med Coll, Dept Publ Hlth & Environm, Ujjain 456006, Madhya Pradesh, India.;Karolinska Inst, Dept Publ Hlth Sci, Global Hlth Hlth Syst & Policy, SE-17176 Stockholm, Sweden..
    Pathak, Ashish
    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). RD Gardi Med Coll, Dept Paediat, Madhya Pradesh, India.;Karolinska Inst, Dept Publ Hlth Sci, Global Hlth Hlth Syst & Policy, Stockholm, Sweden..
    Unintentional Childhood Injuries in Urban and Rural Ujjain, India: A Community-Based Survey2018In: Children (Basel), ISSN 2227-9067, Vol. 5, no 2, article id 23Article in journal (Refereed)
    Abstract [en]

    Injuries are a major global public health problem. There are very few community-based studies on childhood injury from India. The objective of this cross-sectional, community-based survey was to identify the incidence, type, and risk factors of unintentional childhood injuries. The study was done in seven villages and ten contiguous urban slums in Ujjain, India. World Health Organization (WHO) tested tools and definitions were used for the survey, which included 2518 households having 6308 children up to 18 years of age, with 2907 children from urban households and 3401 from rural households. The annual incidence of all injuries was 16.6%, 95% Confidence Interval 15.7-17.5%, (n = 1049). The incidence was significantly higher among boys compared to girls (20.2% versus 12.7%, respectively), was highest in age group 6-10 years of age (18.9%), and in urban locations (17.5%). The most commonly identified injury types were: physical injuries (71%), burns (16%), poisonings (10%), agriculture-related injuries (2%), near drowning (2%), and suffocations (2%). The most common place of injury was streets followed by home. The study identified incidence of different types of unintentional childhood injuries and factors associated with increased risk of unintentional injuries. The results can help in designing injury prevention strategies and awareness programs in similar settings.

  • Public defence: 2018-06-15 10:00 Sal B Electrum, Kista
    Banuazizi, Seyed Amir Hossein
    KTH, School of Engineering Sciences (SCI), Applied Physics, Materials and Nanophysics.
    Determining and Optimizing the Current and Magnetic Field Dependence of Spin-Torque and Spin Hall Nano-Oscillators: Toward Next-Generation Nanoelectronic Devices and Systems2018Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    Spin-torque and spin Hall nano-oscillators are nanoscale devices (about 100 nm)capable of producing tunable broadband high-frequency microwave signals ranging from 0.1 GHz to over 65 GHz that several research groups trying to reach up to200 - 300 GHz. Their development is ongoing for applications in high-frequency nanoelectronic devices and systems, such as mobile phones, wireless networks, base stations, vehicle radars and even medical applications.

    This thesis covers a wide range of characterizations of spin-torque and spin Hall nano-oscillator devices that aim to investigate their current and magnetic field dependency, as well as to suggest improvements in these devices to optimize their application in spintronics and magnonics. The work is primarily based on experimental methods for characterizing these devices by building up new measurement systems, but it also includes numerical and micromagnetic simulations.

    Experimental techniques: In order to characterize the fabricated nanodevices in a detailed and accurate manner through their electrical and microwave responses, new measurement systems capable of full 3D control over the external magnetic fields will be described. In addition, a new method of probing an operational device using magnetic force microscopy (MFM) will be presented.

    Spin-torque nano-oscillators: We will describe remarkable improvements in the performance of spin-torque nano-oscillators (STNOs) that enhance their integration capability with applications in microwave systems. In nanocontact (NC-)STNOs made from a conventional spin-valve stack, though with thicker bottom electrodes, it is found the auto-oscillations can be excited with higher frequencies at lower threshold currents, and with higher output powers. We also find that this idea is useful for tuning spin-wave resonance and also controlling the thermal budget. Furthermore, a detailed study of magnetic droplet solitons and spin-wave dynamics in NC-STNOs will be described. Finally, we demonstrate ultra-high frequency tunability in low-current STNOs based on perpendicular magnetic tunnel junctions(p-MTJs).

    Spin Hall nano-oscillators: Characterizations of spin Hall nano-oscillator(SHNO) devices based on different structures and materials with both conventional and novel methods will be described. A detailed study of the current, temperature, and magnetic field profiles of nanogap SHNOs will be presented. In addition, we show the current and magnetic field dependence of nanoconstriction-based SHNOs.Moreover, it is shown that multiple SHNOs can be serially synchronized, thereby increasing their output power and enhancing the usage of these devices in applications such as neuromorphic computing. We show synchronization of multiple nanoconstriction SHNOs in the presence of a low in-plane magnetic field. Finally, there is a demonstration of the results of a novel method for probing an operationalSHNO using MFM.

  • Svensson, Petra
    School of Public Administration, University of Gothenburg, Sweden.
    Strategists in the intersection of logics: A study of job advertisements in the Swedish municipal administration2015Report (Other academic)
    Abstract [en]

    This report is a study of how public administrators responsible for horizontal perspectives in Swedish local government are handling their role as bureaucrats and political promoters. Gender equality, public health, human rights, rights of children, and environmental protection are examples of perspectives which local authorities are obliged to take into consideration when making political decisions. In order to ensure this, certain strategists are appointed who are supposed to work across all sectors promoting the values and goals of their specific perspective. The role of these strategists contains several paradoxes and complexities.

  • Nystedt, Patrik
    et al.
    Högskolan Väst, SWE.
    Öinert, Johan
    Blekinge Institute of Technology, Faculty of Engineering, Department of Mathematics and Natural Sciences. Blekinge Inst Technol, Dept Math & Nat Sci, SE-37179 Karlskrona, Sweden..
    Richter, Johan
    Mälardalens högskola, SWE.
    NON-ASSOCIATIVE ORE EXTENSIONS2018In: Israel Journal of Mathematics, ISSN 0021-2172, E-ISSN 1565-8511, Vol. 224, no 1, p. 263-292Article in journal (Refereed)
    Abstract [en]

    We introduce non-associative Ore extensions, S = R[X; sigma, delta], for any non-ssociative unital ring R and any additive maps sigma, delta : R -> R satisfying sigma(1) = 1 and delta(1) = 0. In the special case when delta is either left or right R-delta-linear, where R-delta = ker(delta), and R is delta-simple, i.e. {0} and R are the only delta-invariant ideals of R, we determine the ideal structure of the non-associative differential polynomial ring D = R[X; id(R),delta]. Namely, in that case, we show that all non-zero ideals of D are generated by monic polynomials in the center Z(D) of D. We also show that Z(D) = R-delta[p] for a monic p is an element of R-delta [X], unique up to addition of elements from Z(R)(delta) . Thereby, we generalize classical results by Amitsur on differential polynomial rings defined by derivations on associative and simple rings. Furthermore, we use the ideal structure of D to show that D is simple if and only if R is delta-simple and Z(D) equals the field R-delta boolean AND Z(R). This provides us with a non-associative generalization of a result by Oinert, Richter and Silve-strov. This result is in turn used to show a non-associative version of a classical result by Jordan concerning simplicity of D in the cases when the characteristic of the field R-delta boolean AND Z(R) is either zero or a prime. We use our findings to show simplicity results for both non-associative versions of Weyl algebras and non-associative differential polynomial rings defined by monoid/group actions on compact Hausdorff spaces.

  • Svensson, Petra
    Göteborgs universitet, Samhällsvetenskapliga fakulteten, University of Gothenburg, Faculty of Social Sciences.
    ”Den nya svenskinspirerade föräldrapenningen har haft avsedd verkan”: En studie av den tyska föräldraförsäkringens förändring ur ett jämställdhetsperspektiv2010Report (Other academic)
    Abstract [en]

    It is argued that political-administrative organizations are becoming increasingly complex with more horizontal governance required. In Swedish municipal administration, there is a group of administrators assigned the task of monitoring and promoting strategic topics that should be integrated horizontally within the organization. Examples of strategic topics are sustainability, safety/security, diversity, children/youth, public health, human rights, and gender equality. In the thesis, these administrators are called cross-sector strategists. The purpose of this dissertation is to explore how cross-sector strategists become a part of the political-administrative organization when representing, enacting, and reflecting on values in the undertaking of their formal posts. They are situated between the tradition of vertical governance, with formal procedures and hierarchy as its foundation, and the tradition of horizontal governance, with informal networks and deliberation as its foundation. Previous research has shown that this is likely to give rise to value conflicts, and the question is if cross-sector strategists experience value conflicts, and if so, how they cope with them. The cross-sector strategists are studied in this thesis from the perspective of situated agency – focusing on both the contextual expectations of the cross-sector strategists and on their internal reflections to solve value conflicts – in order to explore their process of becoming a part of the local government administration. A mixed-methods design is applied, containing analysis of job advertisements for cross-sector strategists, public managers, and social workers; in-depth interviews with cross-sector strategists; and a survey of professional networks for cross-sector strategists. The results show that cross-sector strategists are subjects to ambivalent and often-contradictory contextual expectations. Cross-sector strategists use the ambivalence of their work for their strategic purposes, and such ambivalence allows them to reframe their topics, their methods, their arguments, and their identity according to current situation in order to increase the impact of their assigned topics and diminish the inner conflict of wanting to be both a responsive bureaucrat and an active lobbyist. Combining these two dedications requires them to be highly reflexive and flexible actors. The outcome of cross-sector strategists’ coping with value conflicts can be interpreted in two ways: 1) as if the cross-sector strategists are a formal tool to safeguard crucial democratic and ethical values due to the cross-sector strategists’ method of sneaking the strategic policy areas into the organization. Or 2) as a to democracy risky administrative behavior in the long-term due to the disguising of value conflicts and diminished possibilities to process these value conflicts

  • Kindbom, Karin
    et al.
    Gustafsson, Tomas
    Åström, Stefan
    Nielsen, Ole-Kenneth
    Saarinen, Kristina
    Potentials for reducing the health and climate impacts of residential biomass combustion in the Nordic countries2018Book (Other academic)
    Abstract [en]

    Residential biomass combustion is a major source of PM2.5 and SLCP (Short Lived Climate Pollutants) emissions in Denmark, Finland and Sweden. SLCPs and PM2.5 have impact on climate, environment and health. When developing strategies for reduced emissions, reliable information on current emissions and assessments for how they can be reduced is essential. This report presents recommendations for how to further improve national activity data collection procedures for less uncertain emission inventory results. It also presents scenario results with estimated technical potentials for reduced emissions of SLCPs and PM2.5 from residential biomass combustion, transformed into potential impact on health and climate effects in 2035.

  • Fernandez-Reyes, Kiko
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Computing Science.
    Clarke, Dave
    Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Computing Science.
    Castegren, Elias
    Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Computing Science.
    Vo, Huu-Phuc
    Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Computing Science.
    Forward to a Promising Future2018In: Conference proceedings COORDINATION 2018, 2018Conference paper (Refereed)
    Abstract [en]

    In many actor-based programming models, asynchronous method calls communicate their results using futures, where the fulfilment occurs under-the-hood. Promises play a similar role to futures, except that they must be explicitly created and explicitly fulfilled; this makes promises more flexible than futures, though promises lack fulfilment guarantees: they can be fulfilled once, multiple times or not at all. Unfortunately, futures are too rigid to exploit many available concurrent and parallel patterns. For instance, many computations block on a future to get its result only to return that result immediately (to fulfil their own future). To make futures more flexible, we explore a construct, forward, that delegates the responsibility for fulfilling the current implicit future to another computation. Forward reduces synchronisation and gives futures promise-like capabilities. This paper presents a formalisation of the forward construct, defined in a high-level source language, and a compilation strategy from the high-level language to a low-level, promised-based target language. The translation is shown to preserve semantics. Based on this foundation, we describe the implementation of forward in the parallel, actor-based language Encore, which compiles to C.

  • Sannö, Anna
    et al.
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Ericson Öberg, Anna
    Volvo CE, Sweden.
    Jackson, Mats
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    How to succeed with Co-production: Experiences from industrial researchers2018Report (Other (popular science, discussion, etc.))
    Abstract [en]

    The aim of this handbook is to raise awareness of the differently organised systems when collaborations are to be set up between companies and universities. By presenting experiences from industrial researchers this handbook will be useful for persons that are going to work in a collaborative setting, regardless of whether they come from a company or a university.

  • Jeong, Yu Seon
    et al.
    KISTI, Natl Inst Supercomp & Networking, Daejeon 34141, South Korea..
    Bhattacharya, Atri
    Univ Liege, Space Sci Technol & Astrophys Res STAR Inst, Bat B5a, B-4000 Liege, Belgium..
    Enberg, Rikard
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Kim, C. S.
    Yonsei Univ, Dept Phys, Seoul 03722, South Korea.;Yonsei Univ, IPAP, Seoul 03722, South Korea..
    Reno, Mary Hall
    Univ Iowa, Dept Phys & Astron, Iowa City, IA 52242 USA..
    Sarcevic, Ina
    Univ Arizona, Dept Astron, 933 N Cherry Ave, Tucson, AZ 85721 USA..
    Stasto, Anna
    Penn State Univ, Dept Phys, 104 Davey Lab, University Pk, PA 16802 USA..
    Prompt atmospheric neutrino flux in perturbative QCD and its theoretical uncertainties2017In: XXVII International Conference on Neutrino Physics and Astrophysics (Neutrino2016), Institute of Physics Publishing (IOPP), 2017, article id 012117Conference paper (Refereed)
    Abstract [en]

    Using the most recent PDFs and the cosmic ray spectrum, we evaluate the charm/bottom induced prompt atmospheric muon neutrino fluxes including nuclear corrections. We investigate their impact in perturbative QCD and estimate the comprehensive uncertainties from other various factors. The prompt atmospheric tau neutrino fluxes are also presented.

  • Public defence: 2018-06-14 15:15 Å2001, Uppsala
    Nilsson, Viktor
    Chalmers University of Technology.
    Highly Concentrated Electrolytes for Lithium Batteries: From fundamentals to cell tests2018Licentiate thesis, comprehensive summary (Other academic)
    Abstract [en]

    The electrolyte is a crucial part of any lithium battery, strongly affecting longevity and safety. It has to survive rather severe conditions, not the least at the electrode/electrolyte interfaces. Current commercial electrolytes based on 1 M LiPF 6 in a mixture of organic solvents balance the requirements on conductivity and electrochemical stability, but they are volatile and degrade when operated at temperatures above ca. 70°C. The salt could potentially be replaced with e.g. LiTFSI, but corrosion of the aluminium current collector is an issue. Replacing the graphite negative electrode by Li metal for large gains in energy density challenges the electrolyte further by exposing it to freshly deposited Li, leading to poor coulombic efficiency (CE) and consumption of both Li and electrolyte. Highly concentrated electrolytes (up to > 4 M) have emerged as a possible remedy, by a changed solvation structure such that all solvent molecules are coordinated to cations – leading to a lowered volatility and melting point, an increased charge carrier density and electrochemical stability, but a higher viscosity and a lower ionic conductivity.

    Here two approaches to highly concentrated electrolytes are evaluated. First, LiTFSI and acetonitrile electrolytes with respect to increased electrochemical stability and in particular the passivating solid electrolyte interphase (SEI) on the anode is studied using electrochemical techniques and X-ray photoelectron spectroscopy. Second, lowering the liquidus temperature by high salt concentration is utilized to create an electrolyte solely of LiTFSI and ethylene carbonate, tested for application in Li metal batteries by characterizing the morphology of plated Li using scanning electron microscopy and the CE by galvanostatic polarization. While the first approach shows dramatic improvements, the inherent weaknesses cannot be completely avoided, the second approach provides some promising cycling results for Li metal based cells. This points towards further investigations of the SEI, and possibly long-term safe cycling of Li metal anodes.

  • Public defence: 2018-05-29 13:15 Norrköpings visualiseringscenter C, Norrköping
    Samini, Ali
    Linköping University, Department of Science and Technology, Media and Information Technology. Linköping University, Faculty of Science & Engineering.
    Perspective Correct Hand-held Augmented Reality for Improved Graphics and Interaction2018Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    With Augmented Reality, also termed AR, a view of the real world is augmented by superimposing computer-generated graphics, thereby enriching or enhancing the perception of the reality. Today, lots of applications benefit from AR in different areas, such as education, medicine, navigation, construction, gaming, and multiple other areas, using primarily head-mounted AR displays and AR on hand-held smart devices. Tablets and phones are highly suitable for AR, as they are equipped with high resolution screens, good cameras and powerful processing units, while being readily available to both industry and home use. They are used with video see-through AR, were the live view of the world is captured by a camera in real time and subsequently presented together with the computer graphics on the display.

    In this thesis I put forth our recent work on improving video see-through Augmented Reality graphics and interaction for hand-held devices by applying and utilizing user perspective. On the rendering side, we introduce a geometry-based user perspective rending method aiming to align the on screen content with the real view of the world visible around the screen. Furthermore, we introduce a device calibration system to compensate for misalignment between system parts. On the interaction side we introduce two wand-like direct 3D pose manipulation techniques based on this user perspective. We also modified a selection technique and introduced a new one suitable to be used with our introduced manipulation techniques. Finally, I present several formal user studies, evaluating the introduced techniques and comparing them with concurrent state-of-the-art alternatives.

  • Bertoni, Marco
    et al.
    Blekinge Institute of Technology, Faculty of Engineering, Department of Mechanical Engineering.
    Wall, Johan
    Blekinge Institute of Technology, Faculty of Engineering, Department of Mechanical Engineering.
    Bertoni, Alessandro
    Blekinge Institute of Technology, Faculty of Engineering, Department of Mechanical Engineering.
    Model Driven Decision Arena: an aerospace study2018In: Proceedings of the International Design Conference / [ed] D. Marjanović, M. Štorga, S. Škec, N. Bojčetić, N. Pavković (eds.), The Design Society, 2018, p. 171-182Conference paper (Refereed)
    Abstract [en]

    The concept of Decision Theatre (DT) is of great interest to leverage knowledge sharing in early stage design decision events. Yet, few contributions show how to configure a DT to support design space exploration and concept selection in cross-functional teams. This paper describes the development of a model-driven decision arena (MDDA) for aero-engine sub-system design. After presenting the descriptive study findings, it illustrates the overall logic of the MDDA environment and exemplifies its use in a case study related to the design of a turbine real structure (TRS) for commercial use.

  • Bertoni, Marco
    et al.
    Blekinge Institute of Technology, Faculty of Engineering, Department of Mechanical Engineering.
    Chowdhery, Syed Azad
    Blekinge Institute of Technology, Faculty of Engineering, Department of Mechanical Engineering.
    Bellini, Anna
    Tetra Pak .
    Model-driven value assessment: a case from the food packaging industry2018In: Proceeedings of the International DESIGN Conference / [ed] D. Marjanović, M. Štorga, S. Škec, N. Bojčetić, N. Pavković (eds.), The Design Society, 2018, Vol. 1, p. 161-170Conference paper (Refereed)
    Abstract [en]

    Consumer perception of food packaging solutions is driven by early design decisions on paperboard configuration and manufacturing technologies. Simulation Driven Design is common to frontload design activities, but is confined to the engineering field and fails to capture higher-level value aspects. This paper presents an assessment framework connecting customer value dimensions with simulations conducted on the mechanical properties of the packaging material, and discusses how value modelling results can be visualised to support collaborative decision making in cross-functional teams.

  • Public defence: 2018-06-12 10:00 Sal M131 Sefström, STOCKHOLM
    Khan, Fareed Ashraf
    KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Casting of Metals. KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Materials Processing.
    Some aspects of convection as well as graphite and carbide formations during casting.2018Licentiate thesis, comprehensive summary (Other academic)
    Abstract [en]

    It is an established fact that segregation during casting affects the physical properties of carbon-based ferro alloys; this motivates the study of the segregation behaviour of carbon and carbide-forming solute elements. In this context, this thesis investigates two different situations: the effects of cooling rate and turbulence on the precipitation behaviour of the graphite nodules in nodular cast iron; the nature of carbide precipitation in a bearing steel grade and the effects of subsequent soaking on these carbides.

    The structures of boiling water reactor inserts cast by the uphill and downhill casting of nodular cast iron were examined. The samples were taken from representative locations in the top, middle and bottom cross sections of the castings. It was observed that in uphill-cast inserts the nodules were larger but fewer in number the bottom section, whereas in downhill-cast inserts the nodules in the bottom section were smaller, but greater in number. Variation in volume fraction of the graphite nodules across the inserts was also observed. The probable cause of this variation was the difference in cooling rate in different sections of the insert. Between the steel tubes located at the central part of the casting, the fraction of graphite was lower, which could be the result of carburization of the steel tubes.

    To study the effects of melt stirring during the solidification of nodular cast iron, several experiments were conducted at variable cooling rates and for different stirring times. Examination of the microstructure was conducted using Light Optical Microscope (LOM) and Scanning Electron Microscope (SEM). It was observed that during stirring the melt oxidized and oxide nuclei were formed. The number of nucleation sites for the precipitation of graphite nodules increased, which raised the nodule count and the fraction of the graphite precipitated. The matrix transformed from pearlite to ferrite, which could be due to the fact that more carbon had diffused out of the matrix.

    The segregation behaviour in hypereutectoid bearing steel produced by ingot casting was also studied. The effects of soaking on micro and macro segregation was investigated in samples taken from as cast and soaked ingots; emphasis was laid on the bulk matrix and A-segregation channels. Samples were also taken from ingots which were soaked and then hot worked. The micro and macro examination of the microstructure was conducted using LOM and SEM. Quantitative and qualitative composition analysis was performed using Energy-dispersive X-ray spectroscopy (EDX) and an electron micro probe analyzer (EMPA). It was observed that M3C, M2C and M6C had precipitated. The carbide morphology in the bulk matrix was different to that in the A-segregation channels. All the primary carbides in the bulk matrix were found to have dissolved after 4 hours of soaking at 1200oC.