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  • 1. Abramowski, A.
    et al.
    Aharonian, F.
    Benkhali, F. Ait
    Akhperjanian, A. G.
    Anguener, E. O.
    Backes, M.
    Balzer, A.
    Becherini, Y.
    Tjus, J. Becker
    Berge, D.
    Bernhard, S.
    Bernloehr, K.
    Birsin, E.
    Blackwell, R.
    Boettcher, M.
    Boisson, C.
    Bolmont, J.
    Bordas, P.
    Bregeon, J.
    Brun, F.
    Brun, P.
    Bryan, M.
    Bulik, T.
    Carr, J.
    Casanova, S.
    Chakraborty, N.
    Chalme-Calvet, R.
    Chaves, R. C. G.
    Chen, A.
    Chretien, M.
    Colafrancesco, S.
    Cologna, G.
    Conrad, Jan
    Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).
    Couturier, C.
    Cui, Y.
    Davids, I. D.
    Degrange, B.
    Deil, C.
    deWilt, P.
    Djannati-Ata, A.
    Domainko, W.
    Donath, A.
    Drury, L. O'C.
    Dubus, G.
    Dutson, K.
    Dyks, J.
    Dyrda, M.
    Edwards, T.
    Egberts, K.
    Eger, P.
    Ernenwein, J-P.
    Espigat, P.
    Farnier, Christian
    Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).
    Fegan, S.
    Feinstein, F.
    Fernandes, M. V.
    Fernandez, D.
    Fiasson, A.
    Fontaine, G.
    Foerster, A.
    Fuessling, M.
    Gabici, S.
    Gajdus, M.
    Gallant, Y. A.
    Garrigoux, T.
    Giavitto, G.
    Giebels, B.
    Glicenstein, J. F.
    Gottschall, D.
    Goyal, A.
    Grondin, M-H.
    Grudzinska, M.
    Hadasch, D.
    Haeffner, S.
    Hahn, J.
    Hawkes, J.
    Heinzelmann, G.
    Henri, G.
    Hermann, G.
    Hervet, O.
    Hillert, A.
    Hinton, J. A.
    Hofmann, W.
    Hofverberg, P.
    Hoischen, C.
    Holler, M.
    Horns, D.
    Ivascenko, A.
    Jacholkowska, A.
    Jamrozy, M.
    Janiak, M.
    Jankowsky, F.
    Jung-Richardt, I.
    Kastendieck, M. A.
    Katarzynski, K.
    Katz, U.
    Kerszberg, D.
    Khelifi, B.
    Kieffer, M.
    Klepser, S.
    Klochkov, D.
    Kluzniak, W.
    Kolitzus, D.
    Komin, Nu.
    Kosack, K.
    Krakau, S.
    Krayzel, F.
    Krueger, P. P.
    Laffon, H.
    Lamanna, G.
    Lau, J.
    Lefaucheur, J.
    Lefranc, V.
    Lemiere, A.
    Lemoine-Goumard, M.
    Lenain, J-P.
    Lohse, T.
    Lopatin, A.
    Lu, C-C.
    Lui, R.
    Marandon, V.
    Marcowith, A.
    Mariaud, C.
    Marx, R.
    Maurin, G.
    Maxted, N.
    Mayer, M.
    Meintjes, P. J.
    Menzler, U.
    Meyer, Manuel
    Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).
    Mitchell, A. M. W.
    Moderski, R.
    Mohamed, M.
    Morå, Knut
    Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).
    Moulin, E.
    Murach, T.
    de Naurois, M.
    Niemiec, J.
    Oakes, L.
    Odaka, H.
    Oettl, S.
    Ohm, S.
    Opitz, B.
    Ostrowski, M.
    Oya, I.
    Panter, M.
    Parsons, R. D.
    Arribas, M. Paz
    Pekeur, N. W.
    Pelletier, G.
    Petrucci, P-O.
    Peyaud, B.
    Pita, S.
    Poon, H.
    Prokoph, H.
    Puehlhofer, G.
    Punch, M.
    Quirrenbach, A.
    Raab, S.
    Reichardt, I.
    Reimer, A.
    Reimer, O.
    Renaud, M.
    de los Reyes, R.
    Rieger, F.
    Romoli, C.
    Rosier-Lees, S.
    Rowell, G.
    Rudak, B.
    Rulten, C. B.
    Sahakian, V.
    Salek, D.
    Sanchez, D. A.
    Santangelo, A.
    Sasaki, M.
    Schlickeiser, R.
    Schuessler, F.
    Schulz, A.
    Schwanke, U.
    Schwemmer, S.
    Seyffert, A. S.
    Simoni, R.
    Sol, H.
    Spanier, F.
    Spengler, Gerrit
    Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).
    Spies, F.
    Stawarz, L.
    Steenkamp, R.
    Stegmann, C.
    Stinzing, F.
    Stycz, K.
    Sushch, I.
    Tavernet, J-P.
    Tavernier, T.
    Taylor, A. M.
    Terrier, R.
    Tluczykont, M.
    Trichard, C.
    Tuffs, R.
    Valerius, K.
    van der Walt, J.
    van Eldik, C.
    van Soelen, B.
    Vasileiadis, G.
    Veh, J.
    Venter, C.
    Viana, A.
    Vincent, P.
    Vink, J.
    Voisin, F.
    Voelk, H. J.
    Vuillaume, T.
    Wagner, S. J.
    Wagner, P.
    Wagner, Roger M.
    Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).
    Weidinger, M.
    Weitzel, Q.
    White, R.
    Wierzcholska, A.
    Willmann, P.
    Woernlein, A.
    Wouters, D.
    Yang, R.
    Zabalza, V.
    Zaborov, D.
    Zacharias, M.
    Zdziarski, A. A.
    Zech, A.
    Zefi, F.
    Zywucka, N.
    Acceleration of petaelectronvolt protons in the Galactic Centre2016In: Nature, ISSN 0028-0836, E-ISSN 1476-4687, Vol. 531, no 7595, 476-+ p.Article in journal (Refereed)
    Abstract [en]

    Galactic cosmic rays reach energies of at least a few petaelectronvolts(1) (of the order of 1015 electronvolts). This implies that our Galaxy contains petaelectronvolt accelerators ('PeVatrons'), but all proposed models of Galactic cosmic-ray accelerators encounter difficulties at exactly these energies(2). Dozens of Galactic accelerators capable of accelerating particles to energies of tens of teraelectronvolts (of the order of 10(13) electronvolts) were inferred from recent gamma-ray observations(3). However, none of the currently known accelerators-not even the handful of shell-type supernova remnants commonly believed to supply most Galactic cosmic rays-has shown the characteristic tracers of petaelectronvolt particles, namely, power-law spectra of.-rays extending without a cut-off or a spectral break to tens of teraelectronvolts(4). Here we report deep.-ray observations with arcminute angular resolution of the region surrounding the Galactic Centre, which show the expected tracer of the presence of petaelectronvolt protons within the central 10 parsecs of the Galaxy. We propose that the supermassive black hole Sagittarius A* is linked to this PeVatron. Sagittarius A* went through active phases in the past, as demonstrated by X-ray outbursts(5) and an outflow from the Galactic Centre(6). Although its current rate of particle acceleration is not sufficient to provide a substantial contribution to Galactic cosmic rays, Sagittarius A* could have plausibly been more active over the last 10(6)-10(7) years, and therefore should be considered as a viable alternative to supernova remnants as a source of petaelectronvolt Galactic cosmic rays.

  • 2.
    Abramsson, Mia
    et al.
    Swedish Energy Agency, Sweden.
    Jidesjö, Anders
    Swedish Energy Agency, Sweden.
    Research and development projects aiming to increase young adults’ knowledge of energy and energy efficiency2015In: eceee Summer Study proceedings / [ed] Therese Laitinen Lindström, Borg & Co, Stockholm, Sweden, European Council for an Energy Efficient Economy (ECEEE), 2015, 509-514 p.Conference paper (Refereed)
    Abstract [en]

    Children and young adults are important target groups in order to decrease the climate change effects and increase an energy-efficient end use. With increased knowledge and awareness these target groups could play a constructive role in the current and future transition of the energy system. The correlation between knowledge, awareness and behavioral change is central for improved energy efficiency in the society. Children and young adults and their interest in the natural and technical science are central to ensure the long-term capability needed to transform the energy system.

    To support this development the Swedish Energy Agency started with young adults as a target group in research and development projects in 2008. Since then approximately 5 million EUR has been allocated for projects aiming to increase knowledge in these areas among young adults by developing practical methods and tools, educational material or in-service training for teachers. Around thirty projects have been supported and three of them, KNUT school development project, KNUT evaluation research project and The Energy Fall, will be discussed in this paper.

     

    The KNUT school development project is a national school project aiming at increasing students’ knowledge and interest in energy and energy efficiency. KNUT also stimulates learning and career choices related to energy, climate and resources and therefor strengthen Sweden's capacities and competitiveness future in these areas. To ensure the scientific base a research group from Linköping University (KNUT evaluation research project) has followed the project’s activities. Best practices of methods and tools have been tested and disseminated within the project at both regional and national level.

     

    The KNUT evaluation research project has identified and analyzed five success factors regarding energy, climate change and energy efficiency of importance for education: 

    • The relationships between the national, regional and local level

    • The function of education vary in time due to the development of society

    • Get to know the education content inside and outside of school

    • Successful meetings between different actors

    • The educational systems capacity to educate all and at the same time recruit some for specialization

    This paper will present an overview of the Swedish Energy Agency’s work on research and development projects aiming to increase young adults’ knowledge of energy and energy efficiency and the KNUT evaluation research project results, analysis and success factors.

  • 3.
    Ahammad, Shamim
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies.
    Importance of Training in Hotel industry2013Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    The highly competitive environment in which businesses operate today requires a skilful workforce in every organisation in order to remain a successful player in the competitive game of the industry. One of the main problems which occur in the workplace is the lack of training. A large number of employees can appear dissatisfied (Heinemann and Greenberger, 2002) due to being assigned responsibilities without-having the right knowledge and skills in that area. Training is an essential process which should be cautiously designed and implemented within all firms. The overall aim of this dissertation is to assess the importance of training- in work field.For many years now human capital has been regarded as vital for the efficient functioning of an organisation because of its contribution in improving productivity, business performance and economic growth (Schultz, 1961). Therefore it is important to invest in human resources through training (Lucas, 1988) in order to improve the competitive position of the firm, and because of the enhanced quality, innovation, continual increased productivity and in turn improved profitability that can be achieved through this (Taylor and Davies, 2004).Throughout this research the training system in Hilton Hotel will be examined and appropriate recommendations for a more effective training system will be given where appropriate. The overall aim of this study is to assess the importance of training in hospitality industry.

  • 4.
    Ahlström, Elin
    Institutionen för Energi och Teknik, Sveriges lantbruksuniversitet.
    Beräkning av miljömässiga och ekonomiska konsekvenser vid källsortering av blandat byggavfall: samt analys av redovisningsmetoder för byggavfallsstatistik2015Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    In a world where mankind is the only creature that generates waste that cannot be naturally decomposed, it is of great importance that we correctly take care of the waste we produce. The EU has therefore developed a list of priority regarding methods of waste treatment. It is called the waste hierarchy and is supposed to form the basis for legislation on waste management. In Sweden the construction sector is called “the 40 percent sector” which refers to the fact that 40 percent of Sweden’s waste is generated by this sector. By 2020, the EU has set up a goal that 70 weight percent of all construction and demolition waste must be recycled or reused. In order to present secure statistics that show the member nations’ progresses toward the goal, the waste statistics must be produced in a better way than today.

    This master thesis aimed to calculate the environmental and economic consequences with source sorting of the mixed construction waste and to determine the best available accounting method to produce construction waste statistics.

    A screening of the content of the mixed waste at a renovation project at Telge Bostäder together with data over the generated waste quantity in a previously conducted renovation project, were used to make the calculations. The existing management, where the waste was sorted as mixed waste, was then compared with a hypothetical scenario where the content encountered during the screening (plastic, wood and cardboard) was sorted out separately instead. Calculations were then made partly in a program (WAMPS) developed by IVL to calculate the emissions from household waste management and partly with own calculations of carbon dioxide emissions. The cost of sorting out the waste was determined using Sortera’s catalog and price list.

    The result of WAMPS was that emissions of 62 tons of carbon dioxide could be avoided from the waste management process by sorting about 71 tons of mixed construction waste at the construction site. The corresponding amount at own calculations was 95 tons. The cost of containers and cost of treatment of the sorted waste was lower than the costs for mixed waste, which meant that the total waste related cost of managing 71 tons of mixed waste would have been reduced by 63 000 Swedish crowns if the waste had been source sorted.

    The analysis over accounting methods indicated that in the short term, the most appropriate way to produce construction waste statistics is to use environmental reports from the treating companies as a basis. This method does not require a change in the law to be implemented and utilizes an existing reporting system.

  • 5.
    Ahmad, Arslan
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering. Brabant Water NV, 5200 BC 's-Hertogenbosch, The Netherlands.
    Evaluation and optimization of advanced oxidation coagulation filtration (AOCF) to produce drinking water with less than 1 μg/L of arsenic2014Report (Other academic)
    Abstract [en]

    Arsenic is an extremely poisonous element. It has been reported to cause contamination of drinking water sources in many parts of the world. The current drinking water permissible limit for arsenic in the European Union is 10 μg/L. The World Health Organization has a general rule that no substance may have a higher lifetime risk of more than 1 in 100,000. However, several studies on toxicity of arsenic suggest that purely based on health effects the arsenic limit of 10 μg/L is not sufficient. The main goal of this research was to develop an efficient arsenic removal technology that could be able to produce drinking water with an arsenic concentration of less than 1 μg/L. For this purpose, an innovative three step technique, Advanced Oxidation - Coagulation - Filtration (AOCF), was investigated through bench-scale and pilot scale experiments in the Netherlands at the water treatment plant of Dorst. Firstly, prior to the investigations on AOCF, the existing arsenic removal at the water treatment plant was investigated. Secondly, through a series of bench-scale experiments, the optimum type of coagulant, its combination dose with the selected chemical oxidant and optimum process pH were determined. Eventually, the partially optimized technique from the bench-scale was implemented at the pilot scale physical model of water treatment plant Dorst where AOCF was evaluated for arsenic removal and its effect on the removal of other common undesirable groundwater constituents. The optimized AOCF technology consistently removed arsenic from groundwater to below 1 ug/L when implemented at pilot scale. The overall effluent quality also remained acceptable. The method is efficient with both types of filtration media tested in this research i.e., virgin sand and metal oxide coated sand, however virgin sand media showed slightly better arsenic removal efficiency.

  • 6.
    Aid, Graham
    et al.
    KTH, School of Industrial Engineering and Management (ITM), Industrial Ecology.
    Brandt, Nils
    KTH, School of Industrial Engineering and Management (ITM), Industrial Ecology.
    Action Research In Waste Management: Application to construction and demolition waste in the Stockholm region2010In: Linnaeus ECO-TECH ´10 / [ed] Fabio Kaczala, Linnaeus University , 2010, 1009-1019 p.Conference paper (Refereed)
    Abstract [en]

    The action research methodology and several of its methods have previously been highlighted and described by the authors as a fitting and rigorous framework approach for complex waste management systems.  This was in response to criticism of the ex ante selection of traditional empiric systems analysis tools to provide decision support and ‘sustainable improvement’ in such complex systems which often involve strong human and political factors.   Several of the action research methods described have recently been utilized in a case study around mineral (aggregate) construction and demolition waste in the Stockholm region.  These methods were integrated through a series of workshops and work areas undergone together with project members from several private and public sectors.  Leaving the problem fuzzy (loosely defined) in the beginning; utilizing convergent interviewing, rich pictures and focus groups allowed the researchers and partner stakeholders to identify not one but several problem areas within the system of focus.  Indicator creation and a dialectic processes were then used to identify qualitative and quantitative aspects of salience around these problem areas.  These resulting indicators were strengthened through a process of verification.  Each indicator was then analyzed by what was deemed to be appropriate and transparent means.  It is argued that this approach may create better communication, transparency, and understanding by the stakeholders.  These factors in turn allowing stronger stakeholder ownership of the process and assisting in more informed decisions and help to provide stability for desired change. However the process was not without its drawbacks such as intense communication and time requirements.

  • 7.
    Aili, Hans
    et al.
    Stockholm University, Faculty of Humanities, Department of Romance Studies and Classics.
    Pietsch, Theodore W
    University of Washington, Seattle.
    Jacob Theodor Klein's Critique of Peter Artedi's Ichthyologia (1738)2014In: Svenska Linnésällskapets årsskrift, ISSN 0375-2038, 39-84 p.Article in journal (Refereed)
    Abstract [en]

    An anonymous critique of Peter Artedi’s (1705‒1735) Ichthyologia sive opera omnia de piscibus, the latter edited and published posthumously by Carolus Linnaeus (1707‒ 1778) in 1738, is shown to have been written by the Prussian jurist and naturalist Jacob Theodor Klein (1685‒1759), and sent to Hans Sloane (1660−1753) in London for his approval. The critique is transcribed and translated, and its contents assessed in light of Artedi’s contribution to Linnaean systematics. While in some ways highly critical of Artedi, Klein must have been well aware that by criticizing Artedi he was, by association, criticizing Linnaeus as well. Linnaeus’s editorial contributions to the Ichthyologia as well as his on-going antagonistic relationship with Klein are also discussed.

  • 8.
    Aldabaldetreku, Rita
    et al.
    Blekinge Institute of Technology, Faculty of Engineering, Department of Strategic Sustainable Development.
    Lautiainen, Juuso
    Blekinge Institute of Technology, Faculty of Engineering, Department of Strategic Sustainable Development.
    Minkova, Alina
    Blekinge Institute of Technology, Faculty of Engineering, Department of Strategic Sustainable Development.
    The Role of Knowledge Management in Strategic Sustainable Development: Comparing Theory and Practice in Companies Applying the FSSD2016Independent thesis Advanced level (degree of Master (One Year)), 20 HE creditsStudent thesis
    Abstract [en]

    The purpose of this study is to explore the role of knowledge management (KM) in integrating sustainability into business strategy in companies applying the framework for strategic sustainable development (FSSD).Corporations have the potential to be key players in moving society towards sustainability, but they lack clear definitions and guidelines around strategic sustainable development (SSD). The authors focus on the benefits of KM in organisations applying the FSSD, which offers general strategic guidelines, but does not refer to the complexity of managing the new sustainability knowledge.This study first examines the scientific literature around KM and FSSD and compares it with the results of expert interviews to develop a State of the Art Model of KM for SSD. Then the model is compared to current practices of corporations applying the FSSD and the gap is examined.The results of the analysis show that the concept of KM is widely discussed in the literature, yet it does not have much presence in the business world. The value of knowledge is recognised, but KM is not much used and no structured practices were identified. It was concluded that companies would benefit from a strategic KM system when integrating sustainability.

  • 9.
    Ali, Babar
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Study of the performance of the Level-1 track trigger in the H→ττ→ee channel in ATLAS at high luminosity LHC2013Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
  • 10.
    Allenby, Patrick
    Karlstad University, Faculty of Arts and Social Sciences (starting 2013), Department of Geography, Media and Communication.
    Enkelstations-RTK eller Nätverks-RTK: I Naturvårdsuppdrag2014Independent thesis Basic level (university diploma), 5 credits / 7,5 HE creditsStudent thesis
    Abstract [sv]

    Sammanfattning

     

    Förutsättning

     

    I examensarbetet har det ingått ett verkligt ärende som handläggs av mig som MBK-ingenjör inom Lantmäteriet. Det är ett naturvårdsuppdrag från Länsstyrelsen och innefattar bl a inmätning och utstakning av gräns på ett blivande naturreservat.

     

    Naturvårdsuppdraget Huskeberget ligger ca 5 km norr om Södra Finnskoga och sydväst om Höljes i norra Värmland. Omkrets 2,38 km. Områdets höjd är ca 550 m över havet och ligger på sydöstra sluttningen av Huskeberget.

     

    Fix

     

    Lantmäteriet använder idag Leica Viva CS15/GS15 mätutrustning vid inmätning av brytpunkter och gränser. I detta fall det blivande naturreservatet. Under vissa omständigheter kan det ta tid att få fix-lösning eller helt utebli. Dessa omständigheter kan bero på ett flertal faktorer bl a kraftiga jonosfärsstörningar och/eller GPRS-nätets täckningsområde för mottagning av SWEPOS nätverks-RTK tjänst.

     

    Inriktning

     

    Fokus har lagts på att utvärdera ett alternativ till nätverks-RTK, en sk enkelstations-RTK med uppkoppling till en tillfällig referensstation.

     

    Närmare undersökning har gjorts på tiden för initialisering vid varje enskild inmätning som sedan jämförts i de två mätmetoderna. Tiden för själva arbetet sätts sedan i relation till resultatet från undersökningen för att ge en helhetsbild av tidsåtgång i arbetet med vardera mätmetoden.

     

    Resultat

     

    Efter alla brytpunkter mätts in visade det sig att i just det här området inte fanns några anmärkningsvärda problem att få fix-lösning med någon av de valda mätmetoderna. Resultatet visar därmed små skillnader i tidsjämförelser.

     

    En oplanerad testmätning med nätverks-RTK gjordes i tät skog alldeles intill en inmätt brytpunkt utan framgång att få fix-lösning. Detta för att belysa problematiken med att få fix-lösning vid mätning i tät skog.

     

    Rapporten innehåller en kortfattad beskrivning av delar av arbetet i Lantmäteriets handläggning av naturvårdsuppdrag.

  • 11.
    Almlöf Ambjörnsson, Heléne
    et al.
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Engineering and Chemical Sciences.
    Östberg, Linda
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Engineering and Chemical Sciences.
    Schenzel, Karla
    Martin Luther University Halle-Wittenberg, Department of Natural Scinence III, Institute of Agriculture and Nutritional Science.
    Larsson, Per Tomas
    Innventia AB, Fibre and Material Science Business area Biorefining, Stockholm.
    Germgård, Ulf
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Engineering and Chemical Sciences.
    Enzyme pretreatment of dissolving pulp as a way to improve the following dissolution in NaOH/ZnO2014In: Holzforschung, ISSN 0018-3830, E-ISSN 1437-434X, Vol. 68, no 4, 385-391 p.Article in journal (Refereed)
  • 12.
    Alriksson, Anna
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences.
    Könsbunden gymkultur?: en kvantitativ studie om hur kvinnor och män väljer att träna på gym.2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Syfte och frågeställningar: Syftet med uppsatsen var att undersöka vad och hur vuxna tränade på gym för att se om det fanns några skillnader som gick att relatera till kön. De frågeställningar som användes för att besvara syftet var: Vilken form av träning föredrog vuxna att ägna sig åt på gymmet? I vilken utsträckning styrketränade vuxna i gymmets öppna lokaler? Vilka muskelgrupper och redskap premierades i samband med vuxnas styrketräning? Hur mycket tid lade vuxna på träning? Föredrog vuxna att träna på egen hand eller tillsammans med andra? Samtliga frågeställningar analyserades utifrån om det skiljde sig mellan kvinnor och män.

    Metod: För att besvara studiens frågeställningar som grundade sig i ett allmängiltigt intresse genomfördes en kvantitativ undersökning via ett strukturerat frågeformulär. Det egenkomponerade formuläret baserades på tidigare forskning och innehöll övervägande slutna svarsalternativ. Urvalet resulterade i ett stickprov av totalt 140 deltagare; 86 kvinnor (61,4%) och 54 män (38,6%). Undersökningen genomfördes på en stor träningsanläggning med ett varierande utbud och undertecknad befann sig på platsen under insamlingen av data.

    Resultat: Det fanns könsrelaterade skillnader i hur vuxna tränade på gymmet. Männen tenderade att träna mer och de föredrog individuell styrketräning med fria vikter och maskiner. Kvinnorna deltog oftare i ledarledd gruppaktivitet och/eller använde sig av sin egen kroppsvikt eller övriga redskap så som bollar och gummiband i samband med sin styrketräning. Utöver det lade männen större fokus på att utveckla sin överkropp medan kvinnorna tenderade att prioritera sin underkropp.

    Slutsats: Kvinnor och män tränade olika på gym och med tidigare forskning som stöd kan detta, till viss del, antas bero på yttre faktorer så som normer och kroppsideal. Denna vetskap bidrar till möjligheter att skapa ett gynnande bemötande från träningsbranschens sida som kan neutralisera den, till synes, styrda uppfattningen om träning. Genom att anpassa miljön och bemöta individen på ett sätt som främjar ett könsneutralt beteende i samband med träning ökar chanserna till en hållbar och optimal utveckling på både det fysiska och mentala planet, oavsett om du är kvinna eller man.

  • 13.
    Amange, Basil
    Karlstad University.
    Elevernas uppfattning om teknikämnets användbarhet: Exempel på högstadieelevers syn på teknikämnets relevans för deras vardagsliv2016Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Abstract

    The purpose of this thesis is to investigate how secondary pupils perceive the usefulness of the subject technology. The starting point is what the School inspection (2014) has pointed out in its review of the subject technology when it comes to offering technology teaching, which secondary school pupils perceive as relevant. The focus area has been the students´ view on the relevance of  subject technology för their everyday lives. The method of this study is a qualitative study based on semi-structured interviews with eight pupils, 4 pupils from class 8 and 4 pupils from class 9. Those pupils are from two suburban schools which are located in Gothenburg, Sweden. My theoretical points have been some relevant research and also two learning theories; the socio-cultural perspective and pragmatism.

    The results of the study show a variation in a small scale between girls´ and boys´ appreciation of the usefulness of technology. The survey shows that all the interviewed pupils want to see the connection between technology education in school and life outside. In other words, one can say that it is significant for the pupils to understand the context in which a technology task may be relevant and productive in relation to humans and society.

  • 14. Anderson, Bruce T.
    et al.
    Hassanzadeh, Pedram
    Caballero, Rodrigo
    Stockholm University, Faculty of Science, Department of Meteorology .
    Persistent anomalies of the extratropical Northern Hemisphere wintertime circulation as an initiator of El Nino/Southern Oscillation events2017In: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 7, 10145Article in journal (Refereed)
    Abstract [en]

    Climates across both hemispheres are strongly influenced by tropical Pacific variability associated with the El Nino/Southern Oscillation (ENSO). Conversely, extratropical variability also can affect the tropics. In particular, seasonal-mean alterations of near-surface winds associated with the North Pacific Oscillation (NPO) serve as a significant extratropical forcing agent of ENSO. However, it is still unclear what dynamical processes give rise to year-to-year shifts in these long-lived NPO anomalies. Here we show that intraseasonal variability in boreal winter pressure patterns over the Central North Pacific (CNP) imparts a significant signature upon the seasonal-mean circulations characteristic of the NPO. Further we show that the seasonal-mean signature results in part from year-to-year variations in persistent, quasi-stationary low-pressure intrusions into the subtropics of the CNP, accompanied by the establishment of persistent, quasi-stationary high-pressure anomalies over high latitudes of the CNP. Overall, we find that the frequency of these persistent extratropical anomalies (PEAs) during a given winter serves as a key modulator of intraseasonal variability in extratropical North Pacific circulations and, through their influence on the seasonal-mean circulations in and around the southern lobe of the NPO, the state of the equatorial Pacific 9-12 months later.

  • 15.
    Andersson, Ing-Marie
    et al.
    Dalarna University, School of Technology and Business Studies, Occupational science.
    Rosén, Gunnar
    Dalarna University, School of Technology and Business Studies, Occupational science.
    Fällstrand Larsson, Nina
    Dalarna University, School of Technology and Business Studies, Occupational science.
    A study visit to a vitual company2012In: NGL 2012  Next Generation Learning Conference: Conference proceedings, Falun: Högskolan Dalarna , 2012, 69-74 p.Conference paper (Other academic)
    Abstract [en]

    To integrate study visits to different workplaces in higher education implies important benefits for the course quality. The study visit gives the students a better understanding for the real situations they will meet in working life. However for practical and economical reasons is that not always possible. The purpose of this project is to create a virtual company that shall replace the real one for study visits. The goal is to create a realistic picture and that intended use of it can come as close as possible to a real study visit. It is also important to facilitate linking theory and practice. The virtual company is built up by pictures, videos and text. All material is made available on a web page and when entering the students will meet a layout of the company. From that position is it possible to walk around and look at videos from different workstations. Besides that can they also listen to interviews with managers and representatives of staff as well as reading reports concerning productivity and the work environment. The focus of the study visit is work sciences, therefore the material also include some visualized information about work hazards. On the web page there are also a number of tasks for the students to carry out. Until the autumn 2011, 132 students at Dalarna University have visited and produced reports from the virtual company. They were studying in programs for mechanical engineering, production technicians and human resource management. An evaluation among some ten students showed that the study visit to the virtual company is flexible in time and effective, but that students wish to have even more detailed information about the company. Experiences from four years of use in a number of classes show that the concept is worth further development. Furthermore with production of new material the concept is likely to be applicable for other purposes.

  • 16.
    Andersson, Jan O
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Cell and Molecular Biology, Molecular Evolution.
    Evolution of Patchily Distributed Proteins Shared between Eukaryotes and Prokaryotes: Dictyostelium as a Case Study2011In: Journal of Molecular Biology and Biotechnology, ISSN 1464-1801, E-ISSN 1660-2412, Vol. 20, no 2, 83-95 p.Article in journal (Refereed)
    Abstract [en]

    Protein families are often patchily distributed in the tree of life; they are present in distantly related organisms, but absent in more closely related lineages. This could either be the result of lateral gene transfer between ancestors of organisms that encode them, or losses in the lineages that lack them. Here a novel approach is developed to study the evolution of patchily distributed proteins shared between prokaryotes and eukaryotes. Proteins encoded in the genome of cellular slime mold Dictyostelium discoideum and a restricted number of other lineages, including at least one prokaryote, were identified. Analyses of the phylogenetic distribution of 49 such patchily distributed protein families showed conflicts with organismal phylogenies; 25 are shared with the distantly related amoeboflagellate Naegleria (Excavata), whereas only two are present in the more closely related Entamoeba. Most protein families show unexpected topologies in phylogenetic analyses; eukaryotes are polyphyletic in 85% of the trees. These observations suggest that gene transfers have been an important mechanism for the distribution of patchily distributed proteins across all domains of life. Further studies of this exchangeable gene fraction are needed for a better understanding of the origin and evolution of eukaryotic genes and the diversification process of eukaryotes.

  • 17.
    Andersson, Kristofer
    Kristianstad University, School of Education and Environment.
    Svedjebrukets slutskede: En studie av svedjebruket och landskapet i Algustorp, Röke socken, norra Skåne, ca 1800-19002017Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Relativt lite forskning har de senaste årtiondena bedrivits gällande svedjebruket, i synnerhet förekomsten och utbredningen av svedjeland inom enskilda byar. Arealen svedjad mark i förhållande till arealen åkermark i byn Algustorp, Röke socken, norra Skåne utgör grunden för denna studie. Gunhild Weimarck publicerade 1953 en avhandling där arealen svedjad mark jämförs med arealen åkermark i Lönsboda, Örkened socken, nordöstra Skåne. För denna uppsats är jämförelser mellan de två byarna fundamental, det vill säga en komparativ studie där likheter och skillnader diskuteras utifrån olika parametrar. Uppsatsen ska dessutom ge ökad kännedom om svedjebrukets förekomst i fem närbelägna byar i anslutning till Algustorp, belysa svedjandets betydelse för agrarsamhället och framför allt redogöra för svedjelandens omfattning inom byn Algustorp. För att möjliggöra detta har källmaterial i form av frågelistsvar, jordeböcker och historiskt kartmaterial varit grundläggande för studien. Analyser av geografisk information i applikationen ArcMap har underlättat beräkningen av arealen svedjemark respektive åkermark i Algustorp. Resultatet visar att arealen svedjeland i Algustorp var mindre än byns åkerareal, till skillnad från Lönsboda, där svedjemarkens areal istället var större i förhållande till byns åkermark. Detta fenomen tycks bero på regionala skillnader, det vill säga olikartade markförhållanden i de olika byarna. Tillgången på odlingsbar mark framstår som mycket liten i Lönsboda. Därmed förekom större arealer svedjemark i Lönsboda till skillnad från Algustorp, där förutsättningarna för spannmålsodling till synes är mera gynnsamma. Det är med stor sannolikhet naturgivna förhållanden, främst jordartssammansättningen, som pådrivit ett större behov av att nyttja svedjebruk i Lönsboda.

  • 18.
    Andersson, Ole
    et al.
    Stockholm University, Faculty of Science, Department of Physics.
    Bengtsson, Ingemar
    Stockholm University, Faculty of Science, Department of Physics.
    Ericsson, Marie
    Sjöqvist, Erik
    Geometric phases for mixed states of the Kitaev chain2016In: Philosophical Transactions. Series A: Mathematical, physical, and engineering science, ISSN 1364-503X, E-ISSN 1471-2962, Vol. 374, no 2068, 20150231Article in journal (Refereed)
    Abstract [en]

    The Berry phase has found applications in building topological order parameters for certain condensed matter systems. The question whether some geometric phase for mixed states can serve the same purpose has been raised, and proposals are on the table. We analyse the intricate behaviour of Uhlmann's geometric phase in the Kitaev chain at finite temperature, and then argue that it captures quite different physics from that intended. We also analyse the behaviour of a geometric phase introduced in the context of interferometry. For the Kitaev chain, this phase closely mirrors that of the Berry phase, and we argue that it merits further investigation.

  • 19.
    Andersson, Sara
    Stockholm University, Faculty of Science, Stockholm Resilience Centre.
    Mapping supply and demand of ecosystem services in the Helge Å catchment area, Sweden2016Independent thesis Advanced level (degree of Master (Two Years)), 40 credits / 60 HE creditsStudent thesis
    Abstract [en]

    Research on ecosystem services has accelerated the last few years, but there is a knowledge gap on how to integrate the concept into management in a way that is mindful of the complex, dynamic and non-linear dimensions of ecosystem services. Ecosystem services are often approached from a supply side, and more often than not services are approached individually without attempt to capture the trade-offs and synergies between services. The overall aim of this master’s thesis is to contribute to the operationalization of the ecosystem services concept, within a social-ecological systems framework. This is done through a case study of the Helge Å catchment in Southern Sweden, in which I use publically available data to map the supply and demand of a selection of locally relevant provisioning, regulating, and, to some extent, cultural ecosystem services. The thesis analyses some of the challenges of, as well as opportunities for, making tangible sense of this complex social-ecological concept in a way that can inform decision making on ecosystem services for sustainable development. The results show that mapping both supply and demand adds important dimensions to ecosystem service assessment that has value within management contexts. Especially important are the added social dimensions of ecosystem service provision, and the incorporation of societal demand as a factor in mapping. There are some obvious challenges still associated with this type of mapping, foremost associated with mapping of cultural ecosystem services and data availability, which have yet to be resolved through continued research efforts.

  • 20.
    Andersson-Sköld, Yvonne
    et al.
    Department of Earth Sciences, University of Gothenburg, Gothenburg, Sweden; Department of Architecture and Civil Engineering, Chalmers University of Technology, Gothenburg, Sweden.
    Klingberg, Jenny
    Department of Earth Sciences, University of Gothenburg, Gothenburg, Sweden.
    Gunnarsson, Bengt
    Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden.
    Cullinane, Kevin
    School of Business Economics and Law, University of Gothenburg, Gothenburg, Sweden.
    Gustafsson, Ingela
    City of Gothenburg, Parks and Landscape Administration, Gothenburg, Sweden.
    Hedblom, Marcus
    Department of Forest Resource Management, Landscape Analysis, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Knez, Igor
    University of Gävle, Faculty of Health and Occupational Studies, Department of Social Work and Psychology, Psychology.
    Lindberg, Fredrik
    Department of Earth Sciences, University of Gothenburg, Gothenburg, Sweden.
    Ode Sang, Åsa
    Department of Landscape Architecture, Planning and Management, Swedish University of Agricultural Sciences, Alnarp, Sweden.
    Pleijel, Håkan
    Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden.
    Thorsson, Pontus
    Division of Applied Acoustics, Chalmers University of Technology, Gothenburg, Sweden.
    Thorsson, Sofia
    Urban Climate Group, Department of Earth Sciences, University of Gothenburg, Gothenburg, Sweden.
    A framework for assessing urban greenery's effects and valuing its ecosystem services.2017In: Journal of Environmental Management, ISSN 0301-4797, E-ISSN 1095-8630, Vol. 205, 274-285 p., S0301-4797(17)30940-4Article in journal (Refereed)
    Abstract [en]

    Ongoing urban exploitation is increasing pressure to transform urban green spaces, while there is increasing awareness that greenery provides a range of important benefits to city residents. In efforts to help resolve associated problems we have developed a framework for integrated assessments of ecosystem service (ES) benefits and values provided by urban greenery, based on the ecosystem service cascade model. The aim is to provide a method for assessing the contribution to, and valuing, multiple ES provided by urban greenery that can be readily applied in routine planning processes. The framework is unique as it recognizes that an urban greenery comprises several components and functions that can contribute to multiple ecosystem services in one or more ways via different functional traits (e.g. foliage characteristics) for which readily measured indicators have been identified. The framework consists of five steps including compilation of an inventory of indicator; application of effectivity factors to rate indicators' effectiveness; estimation of effects; estimation of benefits for each ES; estimation of the total ES value of the ecosystem. The framework was applied to assess ecosystem services provided by trees, shrubs, herbs, birds, and bees, in green areas spanning an urban gradient in Gothenburg, Sweden. Estimates of perceived values of ecosystem services were obtained from interviews with the public and workshop activities with civil servants. The framework is systematic and transparent at all stages and appears to have potential utility in the existing spatial planning processes.

  • 21.
    Anderssson, Kristina
    et al.
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Arts, Centre for Gender Research.
    Hussenius, Anita
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Arts, Centre for Gender Research.
    Gullberg, Annica
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Arts, Centre for Gender Research. Högskolan i Gävle.
    Danielsson, Anna
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Educational Sciences, Department of Education. Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Arts, Centre for Gender Research.
    Scantlebury, Kathryn
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Arts, Centre for Gender Research. University of Delaware.
    Chafing borderlands: Obstacles for Science Teaching and Learning in Teacher Education2014Conference paper (Refereed)
    Abstract [en]

    A major Western concern is that young people avoid science and technology programs. At various times, and in different countries, governments, funding agencies and businesses have made large investments in recruitment campaigns with the objective to increase students’ interest and attract new groups of students to these disciplines. In particular, girls and women have been the target group for many of these campaigns. The assumption is that if young people understood how exciting and interesting science is, they would choose these subjects. In other words, the problem is that young people "don’t understand what is best for their own good".  In addition, research has shown that primary and pre-school student teachers often feel alienated by science education (Appleton & Kindt 2002) and that it may be difficult for these students to reconcile the role of teacher of young children with the role of science teacher in their identity formation (Danielsson & Warwick 2012).

     

    However, feminist science educators suggest that students’ lack of interest is caused by character and image of the disciplines (Brickhouse 2001; Scantlebury 2012). Feminist philosophers’ of science have challenged the view of natural sciences as objective, and argue that knowledge production is human activities that are socially and culturally situated (Haraway 1988; Harding 1986). A noted problem with science is its elitist image. Science is portrayed as difficult and demanding, and as requiring a special talent from those who study or engage with the discipline. A feminist pedagogical stance is to visualize and discuss cultural, social, and historical dimensions of science. This has also proved advantageous for the acquiring of science content knowledge (Sible et al 2006). Therefore, we argue, that one important aspect of science teacher education is to problematize science (education), e.g. by including feminist critiques of science (Capobianco 2007; Mayberry 1998).

    In this paper we explore the impact of a feminist teaching intervention within teacher education, focusing on the research question: What occurs when students are situated in the encounter between feminist critique of natural sciences and teacher education? What kind of obstacles can be identified and how will these effect pre-service teachers’ pedagogy of science?

     

    The intervention, data collection and analysis

    In an ongoing research and intervention project we are studying how an increased awareness of gender issues in science and in science teaching among student teachers influences their identities as teachers, and their teaching of science. We have followed a cohort of approximately 120 pre-service teachers (early years to lower secondary) from two universities in Sweden, through their first year of science courses. As an integral part of these science courses our intervention has introduced critical perspectives on gender and science as related to the culture of science and a feminist critique of the sciences. The project as a whole is framed theoretically by Hirdman's (1990) and Harding's (1986) theories of gender order in society, where gender is constituted on different levels: the structural, the symbolic and the individual (Harding 1986; Hirdman 1990; Rubin 1975). Hirdman (1990) describes this pattern from two perspectives: first, the separation of the two sexes and second, the superior status of the male standard. The formation of gender consolidates differences between the sexes and the female gender is always subordinate the male one, independent of status, class, time, and space.

  • 22.
    Anderssson, Kristina
    et al.
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Arts, Centre for Gender Research.
    Hussenius, Anita
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Arts, Centre for Gender Research.
    Scantlebury, Kathryn
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Arts, Centre for Gender Research. University of Delaware.
    Gullberg, Annica
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Arts, Centre for Gender Research.
    Danielsson, Anna
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Educational Sciences, Department of Education.
    Critiquing science, thinking gender in science teacher education.2014Conference paper (Refereed)
  • 23.
    Arnkil, Harald
    et al.
    Aalto University School of Art and Design, Helsinki .
    Fridell Anter, Karin
    University College of Arts, Crafts and Design.
    Klarén, Ulf
    University College of Arts, Crafts and Design.
    Matusiak, Barbara
    Norwegian University of Science and Technology, Department of Architectural Design, Form and Colour Studies, Trondheim.
    PERCIFAL: Visual analysis of space, light and colour2011In: AIC 2011, Interaction of Colour & Light in the Arts and Sciences, Midterm Meeting of the International Colour Association, Zurich, Switzerland, 7–10 June 2011: Conference Proceedings, CD / [ed] Verena M. Schindler and Stephan Cuber, Zurich: pro/colore, 2011 , 2011, 229-232 p.Conference paper (Refereed)
    Abstract [en]

    This paper addresses the need for better and more accurate methods of recording and analyzing the visual experience of architectural space. PERCIFAL (Perceptive Spatial Analysis of Colour and Light) is an ongoing project that aims at developing a method of analysis that can capture coherent spatial experiences of colour and light. The starting point for PERCIFAL is a method of visual evaluation of space and light, developed by Professor Anders Liljefors at the former department of architectural lighting at KTH Architecture. PERCIFAL is based on direct visual observations and the recording of these observations by verbal-semantic descriptions using a questionnaire. It has been developed primarily as an educational tool, but we see in it potential for a design tool for professionals as well as for an analytical method for research. The first test results, conducted in Sweden, Norway and Finland, show that the method has significant pedagogical merits and that it allows interesting comparisons between physical measurements and visual experiences of space, light and colour. 

  • 24.
    Arvidsson, Anna K
    Swedish National Road and Transport Research Institute, Infrastructure, Infrastructure maintenance.
    Sträckprognoser E62013Report (Other academic)
    Abstract [en]

    Road stretch forecasting is a method for forecasting the weather situations or road conditions, especially slipperiness. This project has been a start on implementing the road stretch forecasting technique on Swedish roads. Road stretch forecasting is already implemented in several parts of the world including Norway and the Czech Republic and is a method for forecasting the weather situations or road conditions on the stretches between the existing Road Weather Information System outstations (RWIS). RWIS outstations are located all over Sweden and mainly in places where there is a high probability of slipperiness. But if the area around the station is changed, for example modifications of the vegetation, the conditions can be changed compared to the original mapping of the road. This leads to a high probability for extreme points in road stretches in between the RWIS outstations. To make a model that describes the road, it is necessary to make a thermal mapping and an analysis of the topoclimate to know the variations in temperature, altitude, shading etcetera, along the road. Then the road is divided into segments representing the different variations of the road. The model calculates the forecast for the road surface temperatures and road conditions, the modelled values are compared and adjusted with the measured temperatures from the thermal mapping. In conclusion, the results regarding this road stretch along E6 show good congruence between the modelled values and the measured temperatures.

  • 25.
    Arvidsson, Anna K
    Swedish National Road and Transport Research Institute, Infrastructure, Infrastructure maintenance.
    Sustainability and climate change considerations in winter maintenance2015Conference paper (Other academic)
  • 26.
    Arwidsson, Anna-Karin
    Linköping University, The Tema Institute, Department of Water and Environmental Studies. Linköping University, Faculty of Arts and Sciences.
    Digital kompetens, från osäkerhet till förtrogenhet: En studie av lärares kunskaper och svårigheter i arbetet med interaktiva skrivtavlor i grundskolans senare år2014Independent thesis Advanced level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Att integrera IKT-verktyg i skolans verksamhet, och då specifikt interaktiva skrivtavlor, har blivit en allt vanligare företeelse för att främja elevers digitala kompetens. En kommun som har gjort en storskalig satsning på att integrera dessa interaktiva skrivtavlor är Linköpings och i dagsläget är varje klassrum i samtliga av deras grundskolor utrustade med en. Denna studie syftar till att ge en inblick i hur den satsningen har påverkat undervisningen ur ett lärarperspektiv, och då specifikt lärare i de naturvetenskapligt orienterande ämnena.

    Genom semistrukturerade intervjuer ämnar studien att sammanställa de förhållningssätt och erfarenheter lärare ger uttryck för gentemot de interaktiva skrivtavlorna. Studien avser att ge en uppfattning om vad lärare anser som betydelsefulla faktorer då en skola genomgår en satsning på interaktiva skrivtavlor i utbildningssyfte. Fokus ligger på begreppen möjligheter, svårigheter samt kunskaper och andra faktorer.

    Resultaten av denna studie visar att lärarna upplever de interaktiva skrivtavlorna som ett verktyg med potential till att ge positiva effekter i undervisningen, och på flera sätt också har det. Att de interaktiva skrivtavlorna möjliggör projektorfunktion och internetuppkoppling på ett snabbt och smidigt sätt är en av de största fördelarna som lärarna i denna studie ger uttryck för. Däremot framkommer även svårigheter med verktyget, och flera av dem är sådana hinder att användningen på ett eller annat sätt begränsas. De hinder som tydligast framträder är tekniska svårigheter, både vad gäller support, mjuk- och hårdvara, fortbildning samt tid. Att lärarna i studien önskar stöttning i sitt arbete med att bekanta sig med verktyget och involvera det i undervisningen är tydligt.

    Utifrån lärarnas berättelser föreslår studien att ge ökade möjligheter till tid och fortbildning, utveckla den tekniska supporten och öka lärarnas möjligheter till kollegiala samtal för att minska dessa svårigheter och den känsla av oro som de skapar för att utöka användningen och verktygets effekter. Lokala strategier, och deras förankring i verksamheten, har också visats ha en mycket betydande roll i detta, då de kan verka stöttande och styrande i och med ett uttalat syfte, mål och tillvägagångssätt.

    Att skolornas användning av IKT-verktyg behöver stöttas har även påpekats utifrån av bland annat Skolverket, och det senaste förslaget är att Sverige utarbetar en nationell IT-strategi. Studiens resultat visar på att detta förslag har potential att ge goda effekter på undervisningen.

  • 27.
    Augustsson, Fredrik
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Electronics, Mathematics and Natural Sciences.
    Idrottslärares inställning till gym i undervisningen2013Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
  • 28. Baeza-Delgado, Carlos
    et al.
    von Heijne, Gunnar
    Stockholm University, Faculty of Science, Department of Biochemistry and Biophysics. Stockholm University, Science for Life Laboratory (SciLifeLab).
    Marti-Renom, Marc A.
    Mingarro, Ismael
    Biological insertion of computationally designed short transmembrane segments2016In: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 6, 23397Article in journal (Refereed)
    Abstract [en]

    The great majority of helical membrane proteins are inserted co-translationally into the ER membrane through a continuous ribosome-translocon channel. The efficiency of membrane insertion depends on transmembrane (TM) helix amino acid composition, the helix length and the position of the amino acids within the helix. In this work, we conducted a computational analysis of the composition and location of amino acids in transmembrane helices found in membrane proteins of known structure to obtain an extensive set of designed polypeptide segments with naturally occurring amino acid distributions. Then, using an in vitro translation system in the presence of biological membranes, we experimentally validated our predictions by analyzing its membrane integration capacity. Coupled with known strategies to control membrane protein topology, these findings may pave the way to de novo membrane protein design.

  • 29.
    Balk, Lennart
    et al.
    Stockholm University, Faculty of Science, Department of Environmental Science and Analytical Chemistry.
    Hägerroth, Per-Åke
    Stockholm University, Faculty of Science, Department of Environmental Science and Analytical Chemistry.
    Gustavsson, Hanna
    Stockholm University, Faculty of Science, Department of Environmental Science and Analytical Chemistry.
    Sigg, Lisa
    Stockholm University, Faculty of Science, Department of Environmental Science and Analytical Chemistry.
    Åkerman, Gun
    Stockholm University, Faculty of Science, Department of Environmental Science and Analytical Chemistry.
    Ruiz Munoz, Yolanda
    Honeyfield, Dale C.
    Tjärnlund, Ulla
    Stockholm University, Faculty of Science, Department of Environmental Science and Analytical Chemistry.
    Oliveira, Kenneth
    Ström, Karin
    Stockholm University, Faculty of Science, Department of Environmental Science and Analytical Chemistry.
    McCormick, Stephen D.
    Karlsson, Simon
    Ström, Marika
    Stockholm University, Faculty of Science, Department of Environmental Science and Analytical Chemistry. Karolinska Institutet, Sweden.
    van Manen, Mathijs
    Stockholm University, Faculty of Science, Department of Environmental Science and Analytical Chemistry. Utrecht University, Germany.
    Berg, Anna-Lena
    Halldorsson, Halldor P.
    Strömquist, Jennie
    Collier, Tracy K.
    Börjeson, Hans
    Mörner, Torsten
    Hansson, Tomas
    Stockholm University, Faculty of Science, Department of Environmental Science and Analytical Chemistry.
    Widespread episodic thiamine deficiency in Northern Hemisphere wildlife2016In: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 6, 38821Article in journal (Refereed)
    Abstract [en]

    Many wildlife populations are declining at rates higher than can be explained by known threats to biodiversity. Recently, thiamine (vitamin B-1) deficiency has emerged as a possible contributing cause. Here, thiamine status was systematically investigated in three animal classes: bivalves, ray-finned fishes, and birds. Thiamine diphosphate is required as a cofactor in at least five life-sustaining enzymes that are required for basic cellular metabolism. Analysis of different phosphorylated forms of thiamine, as well as of activities and amount of holoenzyme and apoenzyme forms of thiaminedependent enzymes, revealed episodically occurring thiamine deficiency in all three animal classes. These biochemical effects were also linked to secondary effects on growth, condition, liver size, blood chemistry and composition, histopathology, swimming behaviour and endurance, parasite infestation, and reproduction. It is unlikely that the thiamine deficiency is caused by impaired phosphorylation within the cells. Rather, the results point towards insufficient amounts of thiamine in the food. By investigating a large geographic area, by extending the focus from lethal to sublethal thiamine deficiency, and by linking biochemical alterations to secondary effects, we demonstrate that the problem of thiamine deficiency is considerably more widespread and severe than previously reported.

  • 30.
    Balksten, Kristin
    Chalmers.
    Kalkputs: porstrukturens betydelse för beständighet2005Licentiate thesis, comprehensive summary (Other academic)
    Abstract [en]

    When restoring historic lime plaster it can be difficult to reach the required durability. Today newly made lime plaster can fall off due to frost damages after only a couple of winters. To understand and solve these problems, the subject has been studied from different perspectives. Several factors in the production step are making an influence on the durability of lime plaster: 1. A binder, suitable for the building, must be chosen along with sandthat gives good material properties in both fresh mortar and in plasters. 2. The lime/sand ratio and the mixing technique should be chosen from the properties in the lime and the sand, in order to get a mortar with good workability. 3. The craftsmanship should be adjusted to the mortar, the weather and the underlying materials. A plaster with good frost resistance has a certain pore structure. The plaster should have some round air pores that contain air even when the material is filled capillary with water. Such air pores give the water a free space to expand when it is freezing. If the air pores are missing, the ice crystals may damage the plaster when expanding. To increase the chance of making a frost resistant lime plaster, the lime/sand ration must be adjusted so the lime can fill up well in the sand. Otherwise a collapsed pore system can easily occur, which means an open pore system without distinct air pores. A collapsed pore system contains many pores well connected with each other. Such a system is easily damaged by frost. To increase the chance of success, it is of great importance to work the surface of the lime plaster at the right time and in the correct way. Before working on a surface the mortar must be aloud to stiffen. Only then a homogeneous material can be created; cracks due to shrinkage can be pressed together and the result is a more compact material with an open surface. The time necessary for mortars to stiffen is related to the water content of the mortar, the suction of the underlying surface and the weather conditions. If the surface is worked on while the mortar is still fresh, the binder can form a hard lime shell on the surface. Inside thematerial a lack of binder can appear. Such plasters have a very low frost resistance. Other durability problems related to plaster are damages in the underlying materials, i.e. rotten wood in covered constructions or leached lime in old joints. Such damages can occur if the covering mortar is made of strong hydraulic lime or cement, since they form plasters with a low permeability in comparison to lime. Due to mentioned findings, it is important to study how a pore structureis influenced by materials, mixture and craftsmanship. Only then it is possible to understand how damages can be decreased.

  • 31.
    Balksten, Kristin
    et al.
    Chalmers.
    Broström, Tor
    Gotland University, School of Culture, Energy and Environment.
    Permeability in lime plaster in relation to durability of covered materials2004Conference paper (Refereed)
    Abstract [en]

    In restoration of old buildings, lime plasters are used for reasons of authenticity and for technicalreasons as well. In many traditional constructions, there is wood behind the plasters or there is old limemortar in the masonry. For the durability of both these underlying materials, it is important that therelative humidity, RH is not too high under a long time of exposure. This can lead to an accelerateddegradation process of wood and leaching of lime in mortars. To prevent this, the plaster must have aproper permeability.The permeability of a material determines its ability to transport gas and moisture. In lime plasters,permeability affects hardening, carbonation as well as durability of the underlying materials. In thepresent paper, eleven mixtures of lime mortar were studied. The binders used were lime slaked in fourdifferent ways, hydraulic lime and cement.The following measurements were made to analyse the permeability and the pore structure of thesamples. Gas permeability and draining curves give an indication of rate of carbonation. Vapourpermeability shows the ability of plaster to transmit moisture at different RH. Thin sections were madefor microscopically investigations of the samples.The investigations show that both the vapour permeability and gas permeability decreases with anincreased amount of hydraulic binder in the lime plasters. Even small amounts of hydraulic binderhave a significant effect.By connecting these results with examples from reality, the picture becomes clearer. In the medievaltown Visby in Sweden, there are several examples of both rotten wood and disintegrated lime mortars.It is constructions from 13th to 19th centuries and low permeable cementitious plasters have coveredthem all, during the middle of the 20th century.

  • 32.
    Balksten, Kristin
    et al.
    Chalmers.
    Klasén, Kenth
    The influence of craftsmanship on the inner structures of lime plasters2005Conference paper (Refereed)
    Abstract [en]

    The use of traditional lime plaster in restoration of old buildings is motivated by bothtechnical and historic reasons. The plasterer deals daily with a multivariable problem wherethe variables are related in such a complex way that we are not even close to findingconverging solutions by traditional scientific methods. The decisions and actions of thecraftsman will have an influence on both the surface structure and the inner structure of thelime plaster. The present paper will focus on the time between application of mortar andworking on the surface to make a floated finish. In total, 32 lime plaster surfaces have beenanalysed. Half of them have been worked on after they have stiffened up and half of themhave been worked on while they are still fresh. The results clearly show that the time betweenapplication of mortar and working the surface is a critical parameter. If you wait until theright time, you receive a more homogeneous and compact material with an open surface anda higher frost resistance.

  • 33.
    Balksten, Kristin
    et al.
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Arts, Department of Art History.
    Lindholm, Martin
    Lange, Johanna
    Increased salt and frost damages in solid neo-Gothic brickwork masonry due to low permeable restoration materials of the 20th century2014In: 9th IMC, Book of Abstract / [ed] Paulo B. Lourenco, Barry A. Haseltine, Graca Vasconcelos, 2014Conference paper (Refereed)
    Abstract [en]

    In Gothenburg many stone buildings of brickwork were built during the neo-Romanesque and neo-Gothic period in the late 19th century. The masonry was solid with a wall of bricks often covered with facing bricks with a hard burned water repellent surface. At Örgryte new church the bricks were put in lime mortar but the surface of the joints was made with a thin cement mortar layer. Salt problems are known in this church since early 20th century and the subsequent need of maintenance have led to several extensive restorations with replacement of external facing bricks and internal lime plaster during the years. In each restoration more low permeable facing bricks and more low permeable cement mortars have been chosen, followed by new problems inside the wall as the water transport properties in the wall has changed. Whereas salts have caused problems mainly on the surface, the restoration materials have caused problems with frost and salt damages in bricks and lime mortars in the wall core behind them.

  • 34.
    Balksten, Kristin
    et al.
    Chalmers.
    Magnusson, Sophia
    The pore structure in lime plaster as a key to understanding moisture transportation properties and frost damages2004In: 10th International Congress on the Deterioration and Conservation of Stone, 2004Conference paper (Refereed)
    Abstract [en]

    The pore structure is of great importance for a materials ability to hold and transport gasand moisture. In lime plaster, it affects hardening, carbonation as well as durability againstfrost damage. In the present paper, eleven mixtures of lime mortar were studied withrespect to frost damages. The binders used were lime slaked in four different ways,hydraulic lime and cement.Several analyses were made to characterize the transport properties and the porestructure of the materials; density, porosity, sorption curves, capillary water suction andthin sections. This study shows that there is a correlation between pore structure andimportant material properties. By studying these parameters, it is possible to get a goodpicture of the materials ability to resist frost damages. The study also gives an indication ofwhat materials in the mortar such as binders, aggregates and water, give a good porestructure.

  • 35.
    Balksten, Kristin
    et al.
    Chalmers.
    Myrin, Malin
    Göteborgs Universitet.
    Lime-based Repair Mortars: Influence by Surface Working Methods onBehaviour and Durability of Mortar2006Conference paper (Refereed)
    Abstract [en]

    The main purpose of this study was to observe the influence by different surface working methodson behaviour, durability and appearance of lime-based stone-repair mortars.The findings are based on:

    - Observations made during restoration work

    - Observations from field stations

    - Microscopic analysis of thin sections of mortar

    - Parallel studies on lime plaster

    The results show clear differences in durability, appearance and behaviour of lime-based mortar dependingon at which stage of the drying process the mortar is worked on. For achieving durable mortar it is importantto avoid the development of a surface lime-film. The study implies that the mortar, only when worked on at aspecific stage of drying, will be durable and have a structure, texture and porosity compatible with the surroundingstone material.

  • 36.
    Balksten, Kristin
    et al.
    Department of Chemical and Biological Engineering, Environmental Inorganic Chemistry, Chalmers University of Technology.
    Steenari, Britt-Marie
    Department of Chemical and Biological Engineering, Environmental Inorganic Chemistry, Chalmers University of Technology.
    A method to recreate historic mortars applied at Norr­landa church on the island of Gotland, Sweden2008Conference paper (Refereed)
    Abstract [en]

    In this work, scanning electron microscopy analysis of lime slaked in different ways and analysis of thin section limeputty and mortar specimens by light microscopy was combined with practical tests and field studies in order to evaluatethe impact of the slaking technique on the properties of the lime putty, and also the structure of the fresh and carbonatedmortar. The lime slaking methods studied were wet slaking and earth slaking. These techniques give lime putties withvery different consistency and workability. The aim of this work was to use microscopy techniques to explain thesedifferences in properties and to investigate if it is possible to use these analytical methods to recognize the lime slakingtechnique used in a historical lime mortar.The results obtained by electron microscopy show significant differences in structure between the lime puttiesstudied. The earth slaked lime consists of relatively large particles that are packed in a porous system as compared to thewet slaked lime with very small particles closely packed in a dense structure. After storing, the wet slaked lime gives aputty, that has a dense and clearly defined stratified structure, whereas the earth slaked lime is porous and has nostratification. The earth slaked lime is tixotropic and has a light, smooth consistency reminding of well whipped creamcompared to the wet slaked lime that has a strong orientation and a rather stiff consistency reminding more of pudding.Microscopy investigations of thin section mortar specimens showed how the lime affects the mortar concerninghomogeneity, density, pore structure and crack patterns.

  • 37.
    Beery, Thomas
    et al.
    Kristianstad University, Research environment Man & Biosphere Health (MABH). Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap.
    Jönsson, K. Ingemar
    Kristianstad University, Research environment Man & Biosphere Health (MABH). Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap.
    Inspiring the outdoor experience: does the path through a nature center lead out the door?2015In: Journal of Interpretation Research, ISSN 1092-5872, Vol. 20, no 1, 67-85 p.Article in journal (Refereed)
    Abstract [en]

    This study investigates the visitor experience at a Swedish nature center within aUNESCO biosphere reserve. The question of whether this interpretive facility succeedsin motivating the visitor to get outdoors for a direct experience of nature is explored. Useof the environmental connectedness perspective and concerns about diminished natureexperience support the importance of this study. A number of qualitative methodologiesare used to investigate the research questions, including thought listing, phenomenology,and field observation. Results indicate that this particular nature center generallysucceeded in the goal of inspiring visitors for a direct nature experience. The success inmotivating visitors appears to be a result of a number of key variables, including placebasedexhibitry, access, and personal visitor factors. Given the setting for this study, weconclude that interpretive nature centers have the potential to play an important role inthe re-imagination of urban environments.

  • 38.
    Beilina, Larisa
    et al.
    Department of Mathematical Sciences, Chalmers University of Technology, Gothenburg University, Gothenburg, Sweden.
    Bondestam Malmberg, John
    Department of Mathematical Sciences, Chalmers University of Technology, Gothenburg University, Gothenburg, Sweden.
    Cristofol, Michel
    Institut de Mathematiques de Marseille, CNRS, UMR 7373, Ecole Centrale, Aix-Marseille University, Marseille, France.
    Shestopalov, Yury
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Electronics, Mathematics and Natural Sciences, Mathematics.
    Preface for the session "recent Progress in Electromagnetic Field Theory and New Trends in Inverse Problems"2017In: AIP Conference Proceedings, ISSN 0094-243X, E-ISSN 1551-7616, Vol. 1863, 370001Article in journal (Refereed)
  • 39. Belton, Lydia E.
    et al.
    Cameron, Elissa Z.
    Dalerum, Fredrik
    Stockholm University, Faculty of Science, Department of Zoology. University of Pretoria, South Africa; University of Oviedo, Spa.
    Spotted hyaena space use in relation to human infrastructure inside a protected area2016In: PeerJ, ISSN 2167-8359, E-ISSN 2167-8359, Vol. 4, e2596Article in journal (Refereed)
    Abstract [en]

    Increasing human population growth has led to elevated levels of human-carnivore conflict. However, some carnivore populations have adapted to urban environments and the resources they supply. Such associations may influence carnivore ecology, behaviour and life-history. Pockets of urbanisation sometimes occur within protected areas, so that anthropogenic influences on carnivore biology are not necessarily confined to unprotected areas. In this study we evaluated associations between human infrastructure and related activity and space use of spotted hyaenas within one of the largest protected areas in South Africa, the Kruger National Park. Home range size was smaller for the dominant female of a clan living in close proximity to humans than that of the dominant female of a clan without direct access to human infrastructure. The home range including human infrastructure was also used less evenly during the night, presumably when the animals were active. Within this home range, a village area was preferred during the night, when the least modified areas within the village were preferred and administration and highly modified areas were avoided. During the day, however, there were no preference or avoidance of the village area, but all habitats except unmodified habitats within the village area were avoided. We suggest that human infrastructure and associated activity influenced hyaena space use, primarily through alterations in the spatial distribution of food. However, these effects may have been indirectly caused by habitat modification that generated favourable hunting habitat rather than a direct effect caused by access to human food such as garbage. Because of the often pivotal effects of apex predators in terrestrial ecosystems, we encourage further work aimed to quantify how human presence influences large carnivores and associated ecosystem processes within protected areas.

  • 40.
    Berg, Emelie
    Karlstad University, Faculty of Arts and Social Sciences (starting 2013), Department of Educational Studies.
    Miljö- och naturvård i förskolans verksamhet2016Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The purpose of this study is to investigate how preschools work with environmental issues and how the children are involved. The questions are related to the different actors (children, teachers and parents) and how they can influence and participate on the work, with an environmental aspect of the phenomenon of sustainable development. The study show how the educators are experiencing the clarity of the topic in the curriculum and how the pre-schools concrete is working with, for example, recycling and sorting. I have in my study chosen a sociocultural perspective as transparency angle where lessons are created through interaction with each other.

     

    It is a quantitative method that has been used in this study. As the design of data collection I have chosen surveys via the web where the issues are clear and measurable. The survey questions are designed based on a scale with five different degrees.

     

    The study results show that the pre-schools are working with recycling, reuse, outdoor education and forest walks to teach the children the science of environment and nature. Interests of the children control some of the work and the parental influence is in general missing. Early childhood educators are experiencing clarity and know the curriculum guidelines about environmental and nature conservation.

  • 41.
    Berge, Maria
    et al.
    Chalmers, Göteborg, Sweden.
    Adawi, Tom
    Chalmers, Göteborg, Sweden.
    Comparing Group and Individual Problem Solving: A Case Study from Newtonian Mechanics2012Conference paper (Refereed)
    Abstract [en]

    Previous research has demonstrated that many students not only emerge from their studies ofphysics with serious gaps in their conceptual understanding but that they also experience seriousstructural difficulties when solving physics problems, such as being able to see the structureof possible solutions and answers before actually solving the problem [1, 2]. One commonly implementedinstructional strategy to bridge these two types of gaps is to let students solve problems in groups, asthis leads to better conceptual understanding and students are able to solve more complex problems ingroups than individually [3,4]. There has, however, been very little research focusing on how the problemsolving process changes when students solve physics problems together rather than individually. In this case study, we explore differences and similarities in how students formulate and solve physicsproblems in groups and individually. The empirical data comprised video-recorded sessions of studentssolving problems in groups [5] and semi-structured interviews with other students solving thesame set of problems individually [2]. All students were enrolled in Engineering Physics at Chalmers Universityof Technology in Gothenburg, Sweden. The problems were drawn from Newtonian mechanicsand the solution to the problems required an understanding of basic notions such as force, friction, accelerationand system. Success on the problems also required an understanding of basic mathematicalnotions such as functions, systems of equations and derivatives. An analysis of the video-recordingsand the interviews revealed how the students struggled with both near- and far transfer [6, 7], i.e. transferto a similar and a different context. Moreover, different patterns of problem solving that were connectedto the social context, i.e. if the problems were solved in groups or individually, became apparent.A comparison between these contexts illustrates some of the benefits of collaborative learning. Someimplications for instruction are also discussed in the paper.

  • 42. Bergh, Johan
    et al.
    Zetterstrom, Per
    Andersen, Peter M.
    Brannstrom, Thomas
    Graffmo, Karin S.
    Jonsson, P. Andreas
    Lang, Lisa
    Stockholm University, Faculty of Science, Department of Biochemistry and Biophysics.
    Danielsson, Jens
    Stockholm University, Faculty of Science, Department of Biochemistry and Biophysics.
    Oliveberg, Mikael
    Stockholm University, Faculty of Science, Department of Biochemistry and Biophysics.
    Marklund, Stefan L.
    Structural and kinetic analysis of protein-aggregate strains in vivo using binary epitope mapping2015In: Proceedings of the National Academy of Sciences of the United States of America, ISSN 0027-8424, E-ISSN 1091-6490, Vol. 112, no 14, 4489-4494 p.Article in journal (Refereed)
    Abstract [en]

    Despite considerable progress in uncovering the molecular details of protein aggregation in vitro, the cause and mechanism of protein-aggregation disease remain poorly understood. One reason is that the amount of pathological aggregates in neural tissue is exceedingly low, precluding examination by conventional approaches. We present here a method for determination of the structure and quantity of aggregates in small tissue samples, circumventing the above problem. The method is based on binary epitope mapping using anti-peptide antibodies. We assessed the usefulness and versatility of the method in mice modeling the neurodegenerative disease amyotrophic lateral sclerosis, which accumulate intracellular aggregates of superoxide dismutase-1. Two strains of aggregates were identified with different structural architectures, molecular properties, and growth kinetics. Both were different from superoxide dismutase-1 aggregates generated in vitro under a variety of conditions. The strains, which seem kinetically under fragmentation control, are associated with different disease progressions, complying with and adding detail to the growing evidence that seeding, infectivity, and strain dependence are unifying principles of neurodegenerative disease.

  • 43.
    Berglund, Björn
    et al.
    Linköping University, Division of Medical Microbiology, Department of Clinical and Experimental Medicine, Linköping, Sweden.
    Khan, Ghazanfar Ali
    Department of Chemistry, Umeå University, Umeå, Sweden.
    Weisner, Stefan
    Halmstad University, School of Business and Engineering (SET), Biological and Environmental Systems (BLESS), Wetland Research Centre.
    Ehde, Per Magnus
    Halmstad University, School of Business and Engineering (SET), Biological and Environmental Systems (BLESS), Wetland Research Centre.
    Fick, Jerker
    Department of Chemistry, Umeå University, Umeå, Sweden.
    Lindgren, Per-Eric
    Linköping University, Division of Medical Microbiology, Department of Clinical and Experimental Medicine, Linköping, Sweden.
    Efficient removal of antibiotics in surface-flow constructed wetlands, with no observed impact on antibiotic resistance genes2014In: Science of the Total Environment, ISSN 0048-9697, E-ISSN 1879-1026, Vol. 476-477, 29-37 p.Article in journal (Refereed)
    Abstract [en]

    Recently, there have been growing concerns about pharmaceuticals including antibiotics as environmental contaminants. Antibiotics of concentrations commonly encountered in wastewater have been suggested to affect bacterial population dynamics and to promote dissemination of antibiotic resistance. Conventional wastewater treatment processes do not always adequately remove pharmaceuticals causing environmental dissemination of low levels of these compounds. Using constructed wetlands as an additional treatment step after sewage treatment plants have been proposed as a cheap alternative to increase reduction of wastewater contaminants, however this means that the natural microbial community of the wetlands becomes exposed to elevated levels of antibiotics. In this study, experimental surface-flow wetlands in Sweden were continuously exposed to antibiotics of concentrations commonly encountered in wastewater. The aim was to assess the antibiotic removal efficiency of constructed wetlands and to evaluate the impact of low levels of antibiotics on bacterial diversity, resistance development and expression in the wetland bacterial community. Antibiotic concentrations were measured using liquid chromatography-mass spectrometry and the effect on the bacterial diversity was assessed with 16S rRNA-based denaturing gradient gel electrophoresis. Real-time PCR was used to detect and quantify antibiotic resistance genes and integrons in the wetlands, during and after the exposure period. The results indicated that the antibiotic removal efficiency of constructed wetlands was comparable to conventional wastewater treatment schemes. Furthermore, short-term treatment of the constructed wetlands with environmentally relevant concentrations (i.e. 100-2000 ng x 1(-1)) of antibiotics did not significantly affect resistance gene concentrations, suggesting that surface-flow constructed wetlands are well-suited for wastewater treatment purposes. (c) 2014 Elsevier B.V. All rights reserved.

  • 44.
    Bergner, Adam
    et al.
    Linköping University, Department of Physics, Chemistry and Biology, Biology. Linköping University, Faculty of Science & Engineering.
    Sunnergren, Anton
    Linköping University, Department of Physics, Chemistry and Biology, Biology. Linköping University, Faculty of Science & Engineering.
    Yeşilbudak, Burcu
    Department of Biology, Çukurova University, Adana, Turkey.
    Erdem, Cahit
    bDepartment of Biology, Çukurova University, Adana, Turkey.
    Jansson, Nicklas
    Linköping University, Department of Physics, Chemistry and Biology, Biology. Linköping University, Faculty of Science & Engineering.
    Attributes of trees used by nesting and foraging woodpeckers (Aves: Picidae) in an area with old pollarded Oaks (Quercus spp.) in the Taurus Mountains, Turkey2016In: Zoology in the Middle East, ISSN 0939-7140, E-ISSN 2326-2680, Vol. 62, no 4, 288-298 p.Article in journal (Refereed)
    Abstract [en]

    We used three woodpecker species as umbrella species for old deciduous forests, andanalysed their preferences in an area with old pollarded oaks in the Taurus Mountains,Turkey. Using plot inventories, we physically characterised trees utilised fornesting and foraging amongst woodpeckers in general and the Middle SpottedWoodpecker (Leiopicus medius) in particular. Trees more frequently visited by foragingwoodpeckers differed from randomly chosen trees by being taller, having alarger circumference, greater bark furrow depth and shorter distance to neighbouringtrees. Nesting trees were taller, had a higher proportion of dead wood but a lower surfacearea of natural cavities. Our results suggest that the woodpeckers in the study arearely upon woodlands containing mature trees, thus have the potential to functionas suitable umbrella species’ to highlight the conservation value of oak forest habitatsin southern Turkey.

  • 45.
    Bergqvist, Anna
    et al.
    Karlstad University, Faculty of Technology and Science, Department of Chemistry and Biomedical Sciences. Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Engineering and Chemical Sciences.
    Chang Rundgren, Shu-Nu
    Stockholm universitet.
    The influence of textbooks on teachers’ knowledge of chemical bonding representations relative to students’ difficulties understanding2017In: Research in Science & Technological Education, ISSN 0263-5143, E-ISSN 1470-1138, Vol. 35, no 2, 215-237 p.Article in journal (Refereed)
    Abstract [en]

    Background: Textbooks are integral tools for teachers’ lessons. Several researchers observed that school teachers rely heavily on textbooks as informational sources when planning lessons. Moreover, textbooks are an important resource for developing students’knowledge as they contain various representations that in uence students’ learning. However, several studies report that students have di culties understanding models in general, and chemical bonding models in particular, and that students’ di culties understanding chemical bonding are partly due to the way it is taught by teachers and presented in textbooks.

    Purpose: This article aims to delineate the in uence of textbooks on teachers’ selection and use of representations when teaching chemical bonding models and to show how this might cause students’ di culties understanding.

    Sample: Ten chemistry teachers from seven upper secondary schools located in Central Sweden volunteered to participate in this study. Design and methods: Data from multiple sources were collected and analysed, including interviews with the 10 upper secondary school teachers, the teachers’ lesson plans, and the contents of the textbooks used by the teachers.

    Results: The results revealed strong coherence between how chemical bonding models are presented in textbooks and by teachers, and thus depict that textbooks in uence teachers’ selection and use of representations for their lessons. As discussed in the literature review, several of the selected representations were associated with alternative conceptions of, and di culties understanding, chemical bonding among students.

    Conclusions: The study highlights the need for lling the gap between research and teaching practices, focusing particularly on how representations of chemical bonding can lead to students’ di culties understanding. The gap may be lled by developing teachers’ pedagogical content knowledge regarding chemical bonding and scienti c models in general. 

  • 46.
    Bergsjö, Joline
    KTH, School of Architecture and the Built Environment (ABE), Urban Planning and Environment, Geodesy and Geoinformatics.
    Object based change detection in urban area using KTH-SEG2014Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Today more and more people are moving to the cities around the world. This puts a lot of strain on the infrastructure as the cities grow in both width and height. To be able to monitor the ongoing change remote sensing is an effective tool and ways to make it even more effective, better and easier to use are constantly sought after.

    One way to monitor change detection is object based change detection. The idea has been around since the seventies, but it wasn’t until the early 2000 when it was introduced by Blaschke and Strobl(2001) to the market as a solution to the issues with pixel based analysis that it became popular with remote analysts around the world.

    KTH-SEG is developed at KTH Geoinformatics. It is developed to segment images in order to preform object based analysis; it can also be used for classification.

    In this thesis object based change detection over an area of Shanghai is carried out. Two different approaches are used; post-classification analysis as well as creating change detection images. The maps are assessed using the maximum likelihood report in the software Geomatica.

    The segmentation and classification is done using KTH-SEG, training areas and ground truth data polygons are drawn in ArcGIS and pre-processing and other operations is carried out using Geomatica.

    KTH-SEG offers a number of changeable settings that allows the segmentation to suit the image at hand.  It is easy to use and produces well defined classification maps that are usable for change detection

    The results are evaluated in order to estimate the efficiency of object based change detection in urban area and KTH-SEG is appraised as a segmentation and classification tool.

    The results show that the post-classification approach is superior to the change detection images. Whether the poor result of the change detection images is affected by other parameters than the object based approach can’t be determined. 

  • 47.
    Bergström, Emelie
    et al.
    Mälardalen University, School of Business, Society and Engineering.
    Bird, Johanna
    Mälardalen University, School of Business, Society and Engineering.
    "ÄTA BÖR MAN, ANNARS DÖR MAN": En studie om möjligheten till implementering av lakto-ovo-vegetarisk och ekologisk kost i Eskilstuna kommuns förskola2014Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The purpose of this study was to describe the possibility of implementing a lacto-ovo-vegetarian and organic diet in Eskilstuna municipality’s public preschool. Furthermore the purpose was to identify and describe the most important components involved in the implementation and their influence in the process.  The methods used were a survey based on a literature study. This study includes general information about meat production and consumption and also the use of pesticides in farming. It also brings up the environmental and health effects caused by the previously mentioned areas. The effects caused by meat production and consumption are, among others, greenhouse gas emissions and increased risk of some forms of cancer. The effects of pesticides are not fully stated but present studies indicate that the effects, especially regarding the environment, are negative. The study then narrows and describes the situation and organization in Eskilstuna municipality and finally describes the possible implementation process. The conclusion of the study was that an implementation is possible and a needed step towards a reduction of negative environmental and health impact. Learned habits that are created in an early age can act as a base for present and future challenges. Children will become the consumers of the future. An organic and lacto-ovo-vegetarian diet reduces the amount of antropogenic distributed compounds and greenhouse gases to the environment and can function as an instrument towards the achievement of the Swedish Environmental Objectives. Goals that are set by Eskilstuna municipality can also be favored by an implementation of the suggested diet in the public preschool.

  • 48.
    Bergström, Nicklas
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Förvaltning av kommunägda skogar i Uppsala län2012Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Detta är en intervjustudie om skoglig förvaltning inom Uppsala läns kommuner med fokus på planering, skötsel, kompetens, upphandling och uppföljning. Studien visar att det saknas bra planeringsverktyg och de som finns används generellt passivt, skötseln i den tätortsnära skogen är anpassad, den formella skogliga kompetensen är låg, upphandling sker som ramavtal och direkt-upphandling samt utlämnad entreprenad följs upp i någon form.

  • 49.
    Berntsson, Jenny
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies.
    Regional destinationsutveckling: Visit Roslagen, ett samarbete i tiden?2015Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    A large proportion of Sweden's tax estimated revenue generated by the tourism industry. Sweden is due to this nutritional sharp increase created a national strategy for both government and business. One of the key words in this strategy is on sustainable destination development, which will increase more of the country's destinations' competitiveness in a sustainable way in order to create a stronger competitiveness in Sweden and internationally. Roslagen is a region that consists of four municipalities, three of these municipalities have formed a company called Destination Visit Roslagen AB. This study focuses on the planning regarding the hospitality industry seen over time in the region Roslagen. It also illustrates how this design looks today regarding cooperation and communication between the public and the private business. The study also describes how the planning around Roslagens tourism industry is controlled today by the company through agreements with municipalities, and how far this development is considered to be the best solution for the region. Finally also examines sustainability aspects of the destination developed and controlled.

    This study used a qualitative approach and a hermeneutic approach. To examine the planning of Roslagens tourism used primary and secondary data. The primary data consists of interviews with Norrtälje and Östhammar business leaders who for a long time and still work with the tourism industry development, and is with and ensures that the company Visit Roslagen care what the contract states. To get a broader picture of Roslagens planning also Visit Roslagens CEO interviewed. The secondary data consists, among other things, in a previous interview survey by Visit Roslagens project manager and some newspaper articles and a description of the agreements between the Company and the municipalities.

    To form an understanding of the topic destination development has previous research and literature used on destination development, planning and management, internal and external communications as well as identity and image, finally, in theory, paragraph describes the effects and sustainable development of the tourism industry.

    The findings in this study show that Roslagen over time have received a stakare merger between the public and private initiatives of public affairs who first were those who stood for the planning of destination development in the region. The national strategy was significant in this development, and created the motivation to form a company for this type of development. The Company has an agreement with each municipality. Local government agreements are similar and means that the company will manage; -turistutveckling, -turistservice, -Marketing and sales. The influence of the municipality of the company is through the agreements which are then followed up by the two local business managers. In addition to the agreement the company manages all planning on the tourism industry itself. Local authorities believe that this incorporation of the tourism industry planning is good for it to be more long-term when not various policy changes could affect various development decisions in the region, but that it instead is a lngsiktig planning under the agreements should be made in consultation between the tourism industry and the public through Agreements between local authorities and the company. Finally, Roslagens planning on destination development considered sustainable when there is a planning and an increasing interaction between public and private actors on the destination. With this planning increases the likelihood that social and environmental sustainability are protected when these factors are the hospitality industry makes money.

  • 50. Bin, Ma
    et al.
    Gubanski, Stanislaw M.
    Krivda, Andrej
    Schmidt, Lars. E.
    Hollertz, Rebecca
    ABB Corporate Research, Dättwil, Switzerland .
    Dielectric Properties and Resistance to Corona and Ozone of Epoxy Compositions Filled with Micro- and Nano-fillers2009In: Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, 2009, -380 p.Conference paper (Refereed)
    Abstract [en]

    This paper describes activities aiming to evaluate and compare the resistance to a prolonged corona and ozone exposure for a range of epoxy based compositions filled with micro- and nano-fillers of silica at different proportions. It has been earlier shown for this system that substitution of 5 wt% of micro-filler by nano-filler slightly improved mechanical properties, yielding an increase in Young's modulus, tensile strength and elongation at break. At the same time, the toughness of the systems decreased with the addition of nano-fillers indicating a poor particle-matrix interaction, which was in accordance with the prior art claiming that this interaction is weaker in case of SiO 2 nano-particles, as for example compared to Al 2O 3 nano-particles. For the exposure to corona and ozone a methodology employing a multiple-needle electrode system was used, as recommended by CIGRE working group WG D1.14. Measurements of surface resistivity, bulk resistivity as well as dielectric response (DR) at broad frequency range (10 -4-10 3 Hz) were performed on new samples of the investigated compositions and after each of two sequences of the corona-ozone treatment, lasting 100hours each. It was found that the long-term corona-ozone exposure had obvious effect on surface resistivity for all the compositions investigated and the contents of the micro- and nano-fillers played a significant role in the observed changes. On the other hand, bulk resisitivity, dielectric permittivity as well as dissipation factor, all being the properties of material bulk, did not exhibit high sensitivity to the exposure.

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