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  • 249601.
    Öhman, Jan
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Social Sciences, Department of Social and Economic Geography.
    Towards a Digital (Societal) Infrastructure?2010In: Urban Studies, ISSN 0042-0980, E-ISSN 1360-063X, Vol. 47, no 1, p. 183-195Article in journal (Refereed)
    Abstract [en]

    In what ways might informational techniques and information technology alter the infrastructure of society? The approach employed in this paper involves a number of fundamental, almost historically determined, conditions for the emergence of an increasingly societal infrastructure. This discussion is then related to analyses of the significance of information and communication technologies (ICT) in terms of ubiquities, agglomerations and clusters. Are there grounds for assuming that these trends are having an impact on the systems of towns and cities of differing sizes and at varying distances? In conclusion, the discussion turns to the issue of whether developments in informational techniques over the past 20 years are leading towards what has been referred to as a digital division of labour and, by extension, also towards a ‘digital (societal) infrastructure’.

  • 249602.
    Öhman, Jan
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Social Sciences, Department of Social and Economic Geography.
    Towards a digital transformation of cities?2010In: 2010 International Forum of Metropolitan Regions Development: Post-Expo 2010 and Regional Economic Integration of the Yangtze River Delta / [ed] Jiang Luquan, Li Bo, Zhang Can, Wang Tao & Gai Ani, Shanghai: Shanghai Jiao Tong University , 2010, p. 5-23Conference paper (Refereed)
  • 249603.
    Öhman, Jan
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Social Sciences, Department of Social and Economic Geography.
    Tradition and quality in the North2010In: Public Service review : European union, ISSN 1472-3395, no 20, p. 506-507Article, review/survey (Other academic)
  • 249604.
    Öhman, Jan
    Uppsala University, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Faculty of Social Sciences, Department of Social and Economic Geography.
    Urbanisering, staden och konkurrensen2000In: Det nya samhällets geografi, Uppsala, Uppsala Publishing House , 2000Chapter in book (Other scientific)
  • 249605.
    Öhman, Jan
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Social Sciences, Department of Social and Economic Geography.
    Utbildningsdepartementets föråldrade världsbild kommer att prägla eleverna i den nya grundskolan2010In: Geografiska Notiser, ISSN 0016-724X, Vol. 68, no 4, p. 156-157Article in journal (Other (popular science, discussion, etc.))
  • 249606.
    Öhman, Jan
    Uppsala University, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Faculty of Social Sciences, Department of Social and Economic Geography.
    Vetenskapliga tidskrifter på Internet - möjligheter och problem1997Other (Other scientific)
  • 249607.
    Öhman, Jan
    et al.
    Uppsala University, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Faculty of Social Sciences, Department of Social and Economic Geography.
    Christoferson, Inger
    Kommunal planering under 1990-talet - en studie av Sveriges kommuner1998Book (Other scientific)
  • 249608.
    Öhman, Jan
    et al.
    Uppsala University, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Faculty of Social Sciences, Department of Social and Economic Geography.
    Christoferson, Inger
    Planering under 1990-talet - en renässans för det lokala1998In: PLAN, ISSN 0032-0560, no 6, p. 261-266Article in journal (Other scientific)
  • 249609.
    Öhman, Jan
    et al.
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Social Sciences, Department of Social and Economic Geography.
    Hogdal, Jon
    Samhällsgeografiska studier i Halmstad1995Report (Other academic)
  • 249610.
    Öhman, Jan
    et al.
    Uppsala University, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Faculty of Social Sciences, Department of Social and Economic Geography.
    Simonsen, Kirsten
    Is there a "Nordic" human geography?2003In: Voices from the North: New Trends in Nordic Human Geography, Ashgate, London , 2003, p. 314-Chapter in book (Refereed)
  • 249611.
    Öhman, Jan
    et al.
    Uppsala University, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Faculty of Social Sciences, Department of Social and Economic Geography.
    Simonsen, Kirsten
    Voices from the North: New Trends in Nordic Human Geography2003Collection (editor) (Other scientific)
  • 249612.
    Öhman, Johan
    Örebro universitet.
    Clarifying the Ethical Tendency in Educational Practice – A Wittgenstein Inspired Approach2006Conference paper (Refereed)
  • 249613.
    Öhman, Johan
    Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Mathematics.
    Four-dimensional Quadratic Division Algebras2000Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
  • 249614.
    Öhman, Johan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Theoretical Physics.
    SEMICLASSICAL TUNNELING EFFECT2014Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This work is a contribution to the theory of the quantum tunneling effect. In the literature at least two barriers are studied, for which the third-order contribution to the phase - integral asymptotic approximation of the transmission coefficient do not contribute. These are the parabolic barrier and the inverse Morse barrier. In the present work we will show that with a proper choice of the so called base function there is at least one more barrier in this category namely the Eckart-Epstein potential. The fact that the third - order contribution vanishes is a good indication that we have found an optimal choice of the base function, and the treatment to find an optimal base function may be possible to generalize to other classes of potential barriers.

       For particles of a low energy compared to the energy near the top of the barrier we obtain a vary low transmission coefficient, which means that the probability for tunneling to occur is very low. There exist some cases, for example that with a double barrier which is transparent, even for certain relatively low energies but no evidence for this kind of transparency for a single barrier has been found. The present work does not give any such evidence. At the same time there are still speculations on cold fusion like effects, which would demand a higher probability for tunneling through for a single barrier.

  • 249615.
    Öhman, Johan
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    Standardisering och optimering av packningsprocess2013Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This is a thesis performed at GEMS PET Systems AB in Uppsala. GEMS PET Systems AB is a company within GE Healthcare. GEMS PET Systems develops and manufactures equipment for manufacturing of radioactive isotopes for PET which is a scanner used in medical applications. The systems includes an accelerator of cyclotron type and other support equipment. One system is shipped in two or three containers depending on order configuration. The main difference in these order configurations is whether radiation shielding will be included in the system or not. If not, there will be a radiation shielding concrete bunker built on site where the systems will be housed. The problem that is to be solved is that some of the components being shipped lacks sufficient shipping boxes which needs to be created. Once created these componenets will need more space in the containers which in turn creates the need for a new cargo plan for each container. This to make sure the loading process is efficient. Along with the cargoplanning a loading instruction is to be created. Using CAD the existing cargo along with the new crates was drawn and a cargoplan for each container. The outcome of this work were new shipping crates and cargoplans for each container.

  • 249616.
    Öhman, Johan
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences.
    Upscaling of Flow, Transport, and Stress-effects in Fractured Rock2005Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    One of many applications of geohydraulic modelling is assessing the suitability of a site to host a nuclear waste repository. This modelling task is complicated by scale-dependent heterogeneity and coupled thermo-hydro-mechanical (THM) processes. The objective here was to develop methods for (i) upscaling flow and transport in fractured media from detailed-scale data and (ii) accounting for THM-induced effects on regional-scale transport. An example field data set was used for demonstration.

    A systematic framework was developed where equivalent properties of flow, transport, and stress-effects were estimated with discrete fracture network (DFN) modelling, at some block scale, and then transferred to a regional-scale stochastic continuum (SC) model. The selected block scale allowed a continuum approximation of flow, but not of transport. Instead, block-scale transport was quantified by transit time distributions and modelled with a particle random walk method at the regional scale.

    An enhanced SC-upscaling approach was developed to reproduce the DFN flow results more simply. This required: (i) weighting of the input well-test data by their conductivity-dependent test volumes and (ii) conductivity-dependent correlation structure. Interestingly, the best-fitting correlation structure resembled the density function of DFN transmissivities.

    Channelized transport, over distances exceeding the block scale, was modelled with a transport persistence length. A linear relationship was found between this persistence length and the macroscale dispersion coefficient, with a slope equal to a representative mean block-scale dispersion coefficient.

    A method was also developed to combine well-test data and rock-mechanical data in estimating fracture transmissivities, and its application was demonstrated.

    Finally, an overall sequential THM analysis was introduced allowing the estimation of the significance of waste-related thermo-mechanical (TM) effects on regional transport; here TM effects are calculated separately and their impact on fracture transmissivities were incorporated into the hybrid framework. For the particular case, their effects on regional-scale transport were small.

    List of papers
    1. Upscaling of Fracture Hydraulics by Means of an Oriented Correlated Stochastic Continuum Model
    Open this publication in new window or tab >>Upscaling of Fracture Hydraulics by Means of an Oriented Correlated Stochastic Continuum Model
    2003 In: Water Resources Research, ISSN 0043-1397, Vol. 39, no 10, p. SBH 3 (1-13)Article in journal (Refereed) Published
    Abstract
    Identifiers
    urn:nbn:se:uu:diva-92871 (URN)
    Available from: 2005-03-31 Created: 2005-03-31 Last updated: 2017-09-21Bibliographically approved
    2. A Regional-Scale Particle-Tracking Method for Nonstationary Fractured Media
    Open this publication in new window or tab >>A Regional-Scale Particle-Tracking Method for Nonstationary Fractured Media
    2005 In: Water Resources Research, ISSN 0043-1397, Vol. 41, no W0316, p. 1-16Article in journal (Refereed) Published
    Abstract
    Identifiers
    urn:nbn:se:uu:diva-92872 (URN)
    Available from: 2005-03-31 Created: 2005-03-31 Last updated: 2017-12-01Bibliographically approved
    3. Probabilistic Estimation of Fracture Transmissivity from Wellbore Hydraulic Data Accounting for Depth-Dependent Anisotropic Rock Stress
    Open this publication in new window or tab >>Probabilistic Estimation of Fracture Transmissivity from Wellbore Hydraulic Data Accounting for Depth-Dependent Anisotropic Rock Stress
    2005 (English)In: International Journal of Rock Mechanics And Mining Sciences, ISSN 1365-1609, E-ISSN 1873-4545, Vol. 42, no 5-6, p. 793-804Article in journal (Refereed) Published
    Abstract [en]

    A new method is introduced that incorporates the use of hydrological and rock mechanical data in assigning transmissivities for fracture-network models. The hydrological data comes from fixed-interval packer tests carried out in a borehole and the rock-mechanical data are the prevailing in situ depth-dependent stress-field and the stress-closure relationship of fractures.

    In the model, the fracture transmissivity distribution is considered to be constituted of two components, one deterministic stress-induced component and the other a stochastic component that describes the intrinsic variability of fractures in a network. The outcome is a tensorial description of fracture transmissivities in an anisotropic stress-regime, where the transmissivity for an arbitrarily oriented fracture in the network is determined by its orientation in relation to the ambient stress-field. These transmissivities are conditioned such that the overall results satisfy the hydraulic packer test data. The suggested procedure is applied to an example data set from a site at Sellafield, England.

    The results show that the probabilistic approach, relying on hydraulic data alone, may underestimate the true variability in fracture transmissivities, since the typically vertical boreholes entail a sampling bias towards horizontal fractures that are predominantly subject to vertical stress. The suggested method helps to account for the true underlying three-dimensional variability that is incompletely resolved by using the hydraulic borehole data alone. This method is likely to have the largest impact at low stress-levels, in strongly anisotropic stress-fields, for borehole directions parallel to one principal stress, and for fracture network geometries characterized by sets orthogonal to the three principal stresses.

    National Category
    Oceanography, Hydrology and Water Resources
    Identifiers
    urn:nbn:se:uu:diva-92873 (URN)10.1016/j.ijrmms.2005.03.016 (DOI)
    Available from: 2005-03-31 Created: 2005-03-31 Last updated: 2018-01-13Bibliographically approved
    4. Thermo-mechanical effects on hydraulic conductivity in a nuclear waste repository setting
    Open this publication in new window or tab >>Thermo-mechanical effects on hydraulic conductivity in a nuclear waste repository setting
    2004 In: Coupled Thermo-Hydro-Mechanical-Chemical Processes in Geo-Systems, Fundamentals, Modelling, Experiments and Applications, 2004, p. 281–286-Chapter in book (Other academic)
    Abstract
    Identifiers
    urn:nbn:se:uu:diva-92874 (URN)0-08-044525-X (ISBN)
    Available from: 2005-03-31 Created: 2005-03-31 Last updated: 2017-09-21Bibliographically approved
  • 249617.
    Öhman, Johan
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science. LUVA.
    Antikainen, J.
    Niemi, Auli
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science. LUVA.
    Thermo-Mechanical effects on hydraulic conductivity in a nuclear waste repository setting2004In: Coupled Thermo-Hydro-Mechanical-Chemical Processes in Geo-Systems, Fundamentals, Modelling, Experiments and Applications, 2004, p. 281-286Chapter in book (Refereed)
  • 249618.
    Öhman, Johan
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences.
    Antikainen, Juha
    Niemi, Auli
    Thermo-mechanical effects on hydraulic conductivity in a nuclear waste repository setting2004In: Coupled Thermo-Hydro-Mechanical-Chemical Processes in Geo-Systems, Fundamentals, Modelling, Experiments and Applications, 2004, p. 281–286-Chapter in book (Other academic)
    Abstract
  • 249619. Öhman, Johan
    et al.
    Jakobsson, Emma
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Biology, Department of Cell and Molecular Biology.
    Källström, Ulla
    Elmblad, Annette
    Ansari, Akbar
    Kalderen, Christina
    Robertson, Elinor
    Danielsson, Eva
    Gustavsson, Anna-Lena
    Varadi, Andrea
    Ekblom, Jonas
    Holmgren, Erik
    Doverskog, Magnus
    Abrahamsen, Lars
    Nilsson, Joakim
    Production of a truncated soluble human semicarbazide-sensitive amine oxidase (SSAO) mediated by a GST-fusion protein secreted from HEK293 cellsArticle in journal (Refereed)
  • 249620.
    Öhman, Johan
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences.
    Niemi, Auli
    Upscaling of Fracture Hydraulics by Means of an Oriented Correlated Stochastic Continuum Model2003In: Water Resources Research, ISSN 0043-1397, Vol. 39, no 10, p. SBH 3 (1-13)Article in journal (Refereed)
    Abstract
  • 249621.
    Öhman, Johan
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science. AIR AND WATER SCIENCE.
    Niemi, Auli
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science. AIR AND WATER SCIENCE.
    Upscaling of Fracture Hydraulics by Means of an Oriented Correlated Stochastic Continuum Model2003In: Water Resources Research, Vol. 39, no 10Article in journal (Refereed)
  • 249622.
    Öhman, Johan
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences.
    Niemi, Auli
    Tsang, Chin-Fu
    A Regional-Scale Particle-Tracking Method for Nonstationary Fractured Media2005In: Water Resources Research, ISSN 0043-1397, Vol. 41, no W0316, p. 1-16Article in journal (Refereed)
    Abstract
  • 249623.
    Öhman, Johan
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, Air and Water Science.
    Niemi, Auli
    Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, Air and Water Science.
    Tsang, Chin-Fu
    Probabilistic Estimation of Fracture Transmissivity from Wellbore Hydraulic Data Accounting for Depth-Dependent Anisotropic Rock Stress2005In: International Journal of Rock Mechanics And Mining Sciences, ISSN 1365-1609, E-ISSN 1873-4545, Vol. 42, no 5-6, p. 793-804Article in journal (Refereed)
    Abstract [en]

    A new method is introduced that incorporates the use of hydrological and rock mechanical data in assigning transmissivities for fracture-network models. The hydrological data comes from fixed-interval packer tests carried out in a borehole and the rock-mechanical data are the prevailing in situ depth-dependent stress-field and the stress-closure relationship of fractures.

    In the model, the fracture transmissivity distribution is considered to be constituted of two components, one deterministic stress-induced component and the other a stochastic component that describes the intrinsic variability of fractures in a network. The outcome is a tensorial description of fracture transmissivities in an anisotropic stress-regime, where the transmissivity for an arbitrarily oriented fracture in the network is determined by its orientation in relation to the ambient stress-field. These transmissivities are conditioned such that the overall results satisfy the hydraulic packer test data. The suggested procedure is applied to an example data set from a site at Sellafield, England.

    The results show that the probabilistic approach, relying on hydraulic data alone, may underestimate the true variability in fracture transmissivities, since the typically vertical boreholes entail a sampling bias towards horizontal fractures that are predominantly subject to vertical stress. The suggested method helps to account for the true underlying three-dimensional variability that is incompletely resolved by using the hydraulic borehole data alone. This method is likely to have the largest impact at low stress-levels, in strongly anisotropic stress-fields, for borehole directions parallel to one principal stress, and for fracture network geometries characterized by sets orthogonal to the three principal stresses.

  • 249624.
    Öhman, Johan
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, LUVAL.
    Niemi, Auli
    Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, LUVAL.
    Tsang, Chin-Fu
    Öhman, J., A. Niemi, and C.-F. Tsang (2005), Probabilistic Estimation of Fracture Transmissivity from Wellbore Hydraulic Data Accounting for Depth-Dependent Anisotropic Rock Stress. Int. Journal of Rock Mechanics and Min. Sciences. 42(5-6): 793-804.2005In: International Journal of Rock Mechanics And Mining Sciences, ISSN 1365-1609, E-ISSN 1873-4545, Vol. 42, no 5-6, p. 793-804Article in journal (Refereed)
    Abstract
  • 249625.
    Öhman, Johan
    et al.
    Pedagogiska institutionen Örebro universitet.
    Östman, Leif
    Uppsala University, Faculty of Educational Sciences, Department of Curriculum Studies.
    Clarifying the Ethical Tendency in Education for Sustainable Development Practice: a Wittgenstein-Inspired Approach2008In: Canadian Journal of Environmental Education, ISSN 1205-5352, Vol. 13, no 1, p. 57-72Article in journal (Refereed)
  • 249626. Öhman, Johan
    et al.
    Östman, Leif
    Uppsala University, Faculty of Educational Sciences, Department of Curriculum Studies.
    Continuity and change in moral meaning-making - a transactional approach2007In: Journal of Moral Education, ISSN 0305-7240, E-ISSN 1465-3877, Vol. 36, no 2, p. 151-168Article in journal (Refereed)
    Abstract [en]

    In recent years, research within the sociocultural perspective on moral learning has contributed important knowledge about how individuals develop their moral ability by participating in sociocultural activities. To a lesser extent, sociocultural research has focused on the role of individual continuity in these processes. The purpose of this article is to contribute to the progress of the sociocultural perspective by suggesting an approach that allows for an in situ analysis of how individuals' prior experiences take part in the processes of moral meaning-making, which also takes sociocultural activity into consideration. The philosophical and methodological basis for this approach consists of a combination of Dewey's transactional perspective on meaning-making and Wittgenstein's first- person perspective on language use. The article contains an empirical example that illustrates this approach. This analysis shows how prior experiences are re-actualised in an event and thus participate in the process of moral meaning-making, as well as contributing to the substance of the meanings made.

  • 249627.
    Öhman, Johan
    et al.
    Örebro universitet.
    Östman, Leif
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Educational Sciences, Department of Education.
    Selective traditions within environmental education2007Conference paper (Refereed)
  • 249628. Öhman, Johan
    et al.
    Östman, Leif
    Uppsala University, Faculty of Educational Sciences, Department of Curriculum Studies. Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Educational Sciences, Department of Education.
    Undervisning och lärande i naturmöten2015In: Naturmötespraktiker och miljömoraliskt lärande / [ed] Leif Östman, Uppsala University, 2015, p. 41-54Chapter in book (Refereed)
  • 249629.
    Öhman, Jon
    et al.
    Uppsala University, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Faculty of Social Sciences, Department of Business Studies.
    Olsson, Andreas
    Uppsala University, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Faculty of Social Sciences, Department of Business Studies.
    Gerillamarknadsföring – konsten att nå konventionella mål med okonventionella metoder2006Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    När mängden reklambudskap ökar och kostnaderna för att synas stiger blir det allt viktigare för företagen att just deras budskap bryter igenom allt brus och når fram till konsumenten. Detta har medfört att vissa företag sökt nya mer okonventionella sätt att göra sin röst hörd, fenomenet kallas gerillamarknadsföring. Tidigare forskning på området har främst undersökt företagens användning av gerillamarknadsföring, vilka typer av företag som kan dra störst nytta av tillvägagångssättet och vilka förutsättningar som krävs inom företagen. Vi har istället valt att studera gerillamarknadsföringen ur ett konsumentperspektiv.

    Resultatet av undersökningen visar att det existerar ett motstånd mot traditionell marknadsföring medan samtliga exempel på gerillamarknadsföring uppvisar bättre verkan. Uppsatsens huvudsakliga slutsats är att gerillamarknadsföringen lyckas skapa ett större intresse hos konsumenten än vad den traditionella reklamen gör. Gerillamarknadsföringen skapar en högre nyfikenhet och skapar en större mängd Word-of-mouth.

  • 249630.
    Öhman, Jon
    et al.
    Uppsala University, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Faculty of Social Sciences, Department of Business Studies.
    Olsson, Andreas
    Uppsala University, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Faculty of Social Sciences, Department of Business Studies.
    Historien om hovleverantören – en studie i användandet av Corporate Storytelling2007Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Corporate Storytelling är ett relativt nytt begrepp inom marknadsföringsområdet. Mycket kortfattat kan det förklaras som en teknik där företag använder sig av berättelser för att förpacka varumärkets värderingar på ett fängslande sätt. På så sätt hoppas företaget väcka engagemang och intresse hos konsumenten samt få åhöraren att föra budskapet vidare. Corporate Storytelling är svårt att kvantifiera, då alla företag och deras berättelser är unika. Därför har vi valt att selektera en specifik grupp företag – Sveriges kungliga hovleverantörer. Dessa 140 företag har alla en sak gemensam, de levererar varor till hovet och har därmed både individuella och gemensamma berättelser kring detta. Uppsatsens syfte är dels att definiera Corporate Storytelling inom extern kommunikation, dels att undersöka om, och i så fall hur, de kungliga hovleverantörerna arbetar med detta verktyg. Slutligen är uppsatsens målsättning att kunna leverera ett antal råd till de kungliga hovleverantörerna, som skulle kunna vara intresserade av att arbeta med Corporate Storytelling. För att uppnå vår målsättning genomfördes en kvalitativ enkätundersökning där 38 företag svarade på ett frågebatteri via e-post. Resultatet av undersökningen ställdes därefter mot en teoretisk grund skapad utifrån ett större antal teorier samt en längre intervju med den professionelle Corporate Storytellern Matts Heijbel. Uppsatsens huvudsakliga slutsats är att hovleverantörskapet fungerar som en garanti för kvalité, gångbar både i Sverige och i utlandet. Dock har det även framgått att det inte är helt lätt för företagen som förtjänat utnämningen att fullt ut dra nytta av den, mycket tack vare reglerna kring det hela samt oviljan att överexponera eller urvattna hovleverantörskapet. Corporate Storytelling har i detta sammanhang visat sig vara ett användbart verktyg för att förmedla styrkorna kring hovleverantörskapet.

  • 249631.
    Öhman, Jonas
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Biology Education Centre.
    Betingad immunpåverkan och medicinskdosreduktion: en kritisk granskning av tillämpad placebo2014Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Placeboeffekten; att få klinisk effekt av inaktiv behandling är ett fenomen som tilldrar sig allt större intresse. Trots att mekanismerna bakom effekten ännu är långt ifrån helt klarlagda så finns en stor mängd forskning som visar att placebobehandling på olika vis kan vara av klinisk relevans. Bland de mest imponerande demonstrationerna av placeboeffekten är de experiment som visar att s.k. klassisk betingning kan påverka immunförsvaret. Experiment har visat att detta är möjligt både hos gnagare och människor: en medicin administreras samtidigt som ett neutralt gustatoriskt stimulus i vad som kallas betingningsfasen. När denna genomförts kan associationen mellan smak och farmakologisk effekt vara så stark att samma smak, på egen hand, kan framkalla nämnd effekt. I detta arbete sammanfattas kort begrepp och forskning kring placebo i allmänhet och betingad placebo i synnerhet. Vetenskapliga belägg för betingad placebos förmåga till immunpåverkan granskas, och det mesta tyder på att sådan är möjlig i praktiken. Därefter diskuteras möjliga kliniska tillämpningar av betingad placebo i form av medicinsk dosreduktion. Avslutningsvis följer en kort genomgång av det stora kunskapsgapet mellan beläggen för denna dosreduktions kliniska relevans, och dess lämplighet inom konventionell vård.

  • 249632.
    Öhman, Jörgen
    Uppsala University, Disciplinary Domain of Science and Technology.
    Light scattering studies of cellulose derivatives in solution1969Doctoral thesis, comprehensive summary (Other academic)
  • 249633. Öhman, Lena
    et al.
    Stridsberg, Mats
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Biochemical endocrinology.
    Isaksson, Stefan
    Jerlstad, Pernilla
    Simrén, Magnus
    Altered Levels of Fecal Chromogranins and Secretogranins in IBS: Relevance for Pathophysiology and Symptoms?2012In: American Journal of Gastroenterology, ISSN 0002-9270, E-ISSN 1572-0241, Vol. 107, no 3, p. 440-447Article in journal (Refereed)
    Abstract [en]

    OBJECTIVES:

    Chromogranins (Cg) and secretogranins (Sg) are proteins ubiquitous in secretory cells of the enteric, endocrine, and immune systems, and may reflect activity of these systems. We therefore performed a hypothesis generating study to evaluate the association between fecal levels of CgA, CgB, SgII, and SgIII, with the clinical and pathophysiological phenotype of irritable bowel syndrome (IBS) patients.

    METHODS:

    Analyses of CgA, CgB, SgII, SgIII, and calprotectin in fecal samples of 82 IBS patients and 29 healthy controls were performed. All IBS subjects completed validated questionnaires to assess gastrointestinal and psychological symptom severity, and underwent rectal barostat test and colonic transit time measurement.

    RESULTS:

    IBS patients demonstrated higher levels of fecal CgA (P=0.009), SgII (P<0.001), and SgIII (P<0.001), but lower levels of CgB (P<0.001) compared with controls. SgII had good discriminative validity to positively identify IBS patients, with an area under the receiver operating characteristics (ROC) curve (AUROC) of 0.86 (95% confidence interval (CI): 0.78-0.94). SgIII and CgB both had fairly good discriminative validity to positively identify IBS patients, with an AUROC of 0.79 (95% CI: 0.71-0.87) and 0.78 (95% CI: 0.69-0.87), respectively. There were negative correlations between the colonic transit time and fecal levels of CgA (r=-0.53, P<0.001), SgII (r=-0.55, P<0.001), and SgIII (r=-0.28, P=0.03). Perceived abdominal pain was moderately associated with levels of CgA (r=0.32, P=0.004), SgII (r=0.31, P=0.006), and SgIII (r=0.24, P=0.04). Calprotectin levels were not associated with the levels of granins or with the clinical or pathophysiological phenotype of IBS patients.

    CONCLUSIONS:

    Fecal levels of Cg and Sg may be related to the underlying pathophysiology of IBS and of potential importance for symptoms of the patients. Granins also show promise to serve as future biomarkers of IBS. Further studies are needed to explore the potential role of granins in IBS patients.

  • 249634.
    Öhman, Linnéa
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Languages, Department of Scandinavian Languages.
    Att förstå det lästa: En kvantitativ studie av läsförståelse med fokus på personer med utländsk utbildning2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    En välutvecklad läsförståelse är bland annat betydelsefull för skolframgång. Mot bakgrund av att andelen utrikesfödda har ökat i Sverige, har den svenska befolkningen numera varierande språkkunskaper och utbildningsbakgrunder. Syftet med denna kvantitativa undersökning är att undersöka läsförmåga över tid såsom det återspeglas i högskoleprovets LÄS-prov, med huvudfokus på personer med utländsk utbildning.

    Resultatet i undersökningen visar på ett fallande resultat på högskoleprovets LÄS-prov hos de två yngsta åldersgrupperna och ett ökat resultat hos de två äldsta, oavsett vilken utbildningsbakgrund dessa har. Vidare framgår att provdeltagare med utländsk utbildning generellt har lägre poängmedelvärde jämfört med deltagare med svensk utbildning. Dessutom blir avstånden större mellan dessa utbildningstyper ju äldre deltagarna blir. När olika typer av utländska utbildningar jämförs sinsemellan har deltagare med utländsk högskoleutbildning nästintill genomgående det högsta poängmedelvärdet, medan deltagare med utländsk utbildning under gymnasienivå oftast har det lägsta. Sammantaget ger resultateten av studien visst stöd för interdependenshypotesen, som utgår från att individers läs- och skrivförmågor är gemensamma för alla språk.

  • 249635.
    Öhman, Lisa
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Social Sciences, Department of Government.
    The Importance of Educating Girls: A critical discourse analysis of western development approaches to girls’ education2017Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 249636.
    Öhman, Magnus
    Uppsala University, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Faculty of Social Sciences, Department of Government.
    Determining the Contestants - Candidate Selection in Ghana's Political Parties for the 2000 Elections2002In: Critical Perspectives, Vol. 8Report (Other scientific)
  • 249637.
    Öhman, Magnus
    Uppsala University, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Faculty of Social Sciences, Department of Government.
    Elite consensus in a Ghanaian context : the Inter-Party Advisory Committee and the 1996 elections1999Other (Other scientific)
  • 249638.
    Öhman, Magnus
    Uppsala University, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Faculty of Social Sciences, Department of Government.
    Public Funding of Political Parties in Africa2001In: Paper presented at the International IDEA/ SADC Conference "Towards Sustainable Democratic Institutions in Southern Africa", Gaborone, 8th-10th May 2000, International IDEA , 2001Conference paper (Other scientific)
  • 249639.
    Öhman, Magnus
    Uppsala University, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Faculty of Social Sciences, Department of Government.
    The Heart and Soul of the Party: Candidate Selection in Ghana and Africa2004Doctoral thesis, monograph (Other academic)
    Abstract [en]

    The ambition of this book is to shed light on the power dynamics within African political parties through studying how different parties select their candidates for parliamentary elections. Having control over who should represent the party in elections is often considered an important factor in the distribution of power. This is however the first time that this research endeavour has been attempted in an African context. The study’s main focus is on the level of centralisation in the selection process and the vulnerability of incumbent Members of Parliament to challenges from others interested in standing for the party. In addition, attention is given to potential electoral effects of different selection systems and to local expectations on aspirants and MPs.

    The analysis takes place on three levels. A comparative study brings together information from 31 parties in 17 African countries. Thereafter, the selection process in Ghana’s main parties during the latest elections is analysed. Finally, Ghanaian constituency level case studies provide detailed information about the processes.

    All three studies indicate that the selection process is often significantly more decentralised than general theories about African parties would have us assume. In addition, incumbent MPs regularly lose out to challengers from within the party, often due to local discontent. It is argued that the clientelistic ties that play an important part in many African political parties go far in explaining these findings. Although such ties may generally strengthen the power of the centre, they often create possibilities for local party activists to reject patrons who do not fulfil their expectations.

  • 249640.
    Öhman, Magnus, Saffu, Yaw
    Uppsala University, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Faculty of Social Sciences, Department of Government.
    Funding Political Parties in Africa2002In: International Handbook on Funding of Political Parties (Article in journal (Other scientific)
  • 249641.
    Öhman, Malin
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Public Health and Caring Sciences.
    Sigblad, Fanny
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Public Health and Caring Sciences.
    Generika: Patientsäkert eller en risk?: En litteraturstudie om synonympreparat utgör hinder för patientsäkerheten samt vilka förebyggande åtgärder hälso- och sjukvården kan vidta2012Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Syftet var att genom granskning av vetenskapliga originalartiklar undersöka patientsäkerheten vid generisk läkemedelsanvändning. Det som studerades var den eventuella problematiken, åtgärderna och patienternas egna erfarenheter av generisk användning. Den Metod som användes var en litteraturstudie där artiklar söktes i ett flertal databaser och via manuella sökningar. Sjutton artiklar inkluderades och granskades utifrån en mall för kvalitet- och resultatanalys. I Resultatet framgick att sjuksköterskor anser att osäkerhet, täta läkemedelsbyten, otydlig kommunikation, lika läkemedel till utseende och namn, samt tung arbetsbelastning är riskfaktorer som leder till medicineringsfel i form av under- och överdosering och/ eller utebliven läkemedelsdos. Patientsäkerheten påverkas även då försämrad följsamhet, biverkningar och sämre effekt är konsekvenser av generisk substitution. Åtgärder anses vara kvalificerade patient- och personal utbildningar. Tydligt uttalade ordinationer, minskat antal mediciner med lika namn och utseenden, samt dubbelkontroller och uppdatering av listor var förslag på förbättringar. Patienter hade generellt negativa attityder och erfarenheter av generika. Attityderna grundade sig främst på otrygghet och misstro. Patienter upplevde förvirring, fler eller värre biverkningar samt sämre effekt. Slutsatsen visar att det förekommer att patienter och sjuksköterskor erfar problem vid användning av generiska läkemedel och att detta får konsekvenser för patientsäkerheten. Därför bör fler problemåtgärder fastställas och tillämpas för att förhindra medicineringsfel som äventyrar patientsäkerheten.

  • 249642. Öhman, Marie
    Ann-Sofie Lönngren, Following the Animal. Power, Agency, and Human-Animal Transformations in Modern, Northern-European Literature. Cambridge Scholars Publishing. Newcastle upon Thyne 20152016In: Samlaren: tidskrift för svensk litteraturvetenskaplig forskning, ISSN 0348-6133, E-ISSN 2002-3871, Vol. 137, p. 315-317Article, book review (Other academic)
  • 249643.
    Öhman, Marie
    et al.
    Örebro universitet.
    Almqvist, Jonas
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Educational Sciences, Department of Education.
    Meckbach, Jane
    Gymnastik- och idrottshögskolan.
    Quennerstedt, Mikael
    Örebro universitet.
    Competing for ideal bodies: a study of exergames used as teaching aids in schools2014In: Critical Public Health, ISSN 0958-1596, E-ISSN 1469-3682, Vol. 24, no 2, p. 196-209Article in journal (Refereed)
    Abstract [en]

    Since the development of the welfare state, the Swedish school subject Health and Physical Education (HPE) has been regarded as an important site for public health work, and still assumes a central role in promoting the health of the coming generation. A specific type of health intervention, promoted by researchers in recent years, is the use of so-called exergames. In some countries, these fitness games are used as teaching aids in physical education classes and can be seen as examples of how public health issues and popular culture are shaping HPE in schools. The aim of the study reported in this paper is to examine which messages about health and body are offered, and how these are expressed in some of the fitness games used as teaching aids in school. The results of the study highlight the dangers of using exergames in the teaching of HPE in schools. The messages communicated by the games have a number of potentially harmful consequences, particularly with regard to the creation of specific health and bodily norms based on a measurable ideal. The use of this tool in education is thus far from value free, and the problems that might be solved when using the games are not necessarily the ones that education should privilege.

  • 249644.
    Öhman, Marie
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Clinical Chemistry.
    Åkerfeldt, Torbjörn
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Clinical Chemistry.
    Nilsson, Ingela
    Rosen, Christer
    Hansson, Lars-Olof
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Clinical Chemistry.
    Larsson, Anders
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Clinical Chemistry.
    Biochemical effects of consumption of eggs containing omega-3 polyunsaturated fatty acids2008In: Upsala Journal of Medical Sciences, ISSN 0300-9734, E-ISSN 2000-1967, Vol. 113, no 3, p. 315-323Article in journal (Refereed)
    Abstract [en]

    Today, eggs with an increased content of -3 fatty acids are available but there are few publications on the effects of consumption of such eggs on the lipoproteins and acute phase markers in humans. The aim of the present study was to evaluate the effects of consumption of standard eggs and -3 enriched eggs on lipoproteins, glucose and inflammation markers. Nineteen healthy volunteers consumed one extra egg per day of either standard eggs or omega-3 enriched eggs in a double-blind, cross-over study. The duration of each period was 1 month. The effects of the different egg diets on apolipoprotein A1 and B (Apo A1 and B), lipoprotein (a), creatinine, cystatin C, C-reactive protein, serum amyloid protein A, interleukin 6, triglycerides, glucose, total-, high-density lipoprotein and low-density lipo-protein cholesterol concentrations were analyzed. Addition of one regular egg per day to the normal diet had no negative impact on blood lipids or inflammation markers. Consumption of omega-3 enriched eggs resulted in higher levels of ApoA1, lower ApoB/ApoA1 ratio and lower plasma glucose. These effects have been associated in previous studies with a reduced risk for cardiovascular mortality and diabetes.

  • 249645.
    Öhman, Martin
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Arts, Department of History.
    A Convergence of Crises: The Expansion of Slavery, Geopolitical Realignment, and Economic Depression in the Post-Napoleonic World*2013In: Diplomatic History, ISSN 0145-2096, E-ISSN 1467-7709, Vol. 37, no 3, p. 419-445Article in journal (Refereed)
    Abstract [en]

    This article argues that the Missouri Crisis 1819-1821 was a consequence of growing concerns about geopolitical realignments in the post-Napoleonic world and the impending international recession. Scholars have typically explained the conflict over slavery's expansion as the last convulsion of the first-party system, a reflection of budding humanitarian considerations, or as a product of the growing contradictions between slavery and freedom in an era of an emerging liberal capitalist ethos and a democratization of American politics. The central element of the northern restrictionist position, however, was that slavery's expansion into the western territories would seriously impede the United States' ability to compete economically and mobilize militarily in times of war. In light of persistent tensions with foreign powers, the perceived risk of renewed great power warfare, international markets glutted, and every branch of the economy paralyzed, restrictionists saw the halting slavery's expansion as a necessary measure to save the federal republic.

  • 249646.
    Öhman, Mattias
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Social Sciences, Department of Economics.
    Be smart, live long: the relationship between cognitive and non-cognitive abilities and mortality2015Report (Other academic)
    Abstract [en]

    I study the association between cognitive and non-cognitive abilities and mortality, and investigate how well income and education act as proxy measures for ability. The risk of premature mortality is estimated using Cox proportional hazard models with a dataset of 692,303 Swedish men aged 18-20 years, enlisted between the years 1969-1983, and deaths between the years 1969 and 2009. Results suggest that both cognitive and non-cognitive abilities are strongly associated with mortality, independently and through income and education. Non-cognitive ability is a stronger predictor of the risk of mortality than cognitive ability. For middle and high income earners, and individuals with a college education, there are no associations between the abilities and mortality. However, for low income earners and individuals without a college education, cognitive and non-cognitive ability have strong associations with mortality. Results are mainly driven by the bottom of the measured ability distributions.

  • 249647. Öhman, Mattias
    "Be Smart, Live Long: The Relationship Between Cognitive and Non-Cognitive Abilities and Mortality" and "Exogenous Health Information and Individuals' Subjective Well-Being: RD Evidence from a Screening-Program for an Asymptomatic Disease"2015Licentiate thesis, comprehensive summary (Other academic)
  • 249648.
    Öhman, Mattias
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Public Health and Caring Sciences, Clinical Psychology in Healthcare. Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Social Sciences, Department of Economics.
    Be smart, live long:the relationship between cognitive and non-cognitiveabilities and mortality2015Report (Other academic)
  • 249649.
    Öhman, Mattias
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Social Sciences, Institute for Housing and Urban Research.
    Dani Rodrik: Economics Rules: The Rights and Wrongs of the Dismal Science2018In: Ekonomisk Debatt, ISSN 0345-2646, no 6, p. 62-64Article, book review (Other (popular science, discussion, etc.))
  • 249650.
    Öhman, Mattias
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Social Sciences, Department of Economics.
    Essays on Cognitive Development and Medical Care2016Doctoral thesis, monograph (Other academic)
    Abstract [en]

    This thesis consists of four self-contained papers.

    Essay I (with Linuz Aggeborn): Fluoridation of the drinking water is a public policy whose aim is to improve dental health. Although the evidence is clear that fluoride is good for dental health, concerns have been raised regarding potential negative effects on cognitive development. We study the effects of fluoride exposure through the drinking water in early life on cognitive and non-cognitive ability, education and labor market outcomes in a large-scale setting. We use a rich Swedish register dataset for the cohorts born 1985-1992, together with drinking water fluoride data. To estimate the effects, we exploit intra-municipality variation of fluoride, stemming from an exogenous variation in the bedrock. First, we investigate and confirm the long-established positive relationship between fluoride and dental health. Second, we find precisely estimated zero-effects on cognitive ability, non-cognitive ability and education for fluoride levels below 1.5 mg/l. Third, we find evidence that fluoride improves later labor market outcomes, which indicates that good dental health is a positive factor on the labor market.

    Essay II: I study the associations between cognitive and non-cognitive abilities and mortality using a population-wide dataset of almost 700,000 Swedish men born between 1950 and 1965. The abilities were measured at the Swedish military enlistment at age 18-20. In addition, I investigate if income and education are good proxies for the abilities. The results suggest that both cognitive and non-cognitive abilities are strongly associated with mortality, but that non-cognitive ability is a stronger predictor. The associations are only partly mediated through income and education. For middle and high income earners and individuals with a college education there are no associations with mortality. However, for low income earners and individuals without a college education, both abilities are strongly associated with mortality. The associations are mainly driven by the bottom of the distributions.

    Essay III (with Matz Dahlberg, Kevin Mani and Anders Wanhainen): We examine how health information affects individuals' well-being using a regression discontinuity design on data from a screening program for an asymptomatic disease, abdominal aortic aneurysm (AAA). The information provided to the individuals is guided by the measured aorta size and its relation to pre-determined levels. When comparing individuals that receive information that they are healthy with those that receive information that they are in the risk zone for AAA, we find no effects. However, when comparing those that receive information that they have a small AAA, and will be under increased surveillance, with those who receive information that they are in the risk zone, we find a weak positive effect on well-being. This indicates that the positive information about increased surveillance may outweigh the negative information about worse health.

    Essay IV: I estimate the effect of SSRI antidepressants on the risk of mortality for myocardial infarction (MI) patients using Propensity Score Matching on individual health variables such as pharmaceutical drug prescription, patient history and severity of the MI. The effect of antidepressants on mortality is a heavily debated topic. MI patients have an elevated risk of developing depression, and antidepressants are among the most common treatments for depression and anxiety. However, there are indications that some classes of antidepressants may have drug-induced cardiovascular effects and could be harmful for individuals with heart problems, but there is a lack of large-scale studies using credible identification strategies. My findings indicate no increased risk of two-year mortality for MI patients using SSRI. The results are stable for several specifications and robustness checks.

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