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  • 501.
    Ackerholm, Nils
    Linköping University, Department of Computer and Information Science.
    Att stödja utan att styra eller störa: Användbarhetsstudie av personlig anpassning på webbsidor2005Independent thesis Advanced level (degree of Magister)Student thesis
    Abstract [sv]

    Ett överflöd av information gör att den information vi verkligen vill ha blir svårare att hitta. För att råda bot på detta har det gjorts försök att hjälpa användaren att hitta genom personlig anpassning av webbsidor. Meningen är att personlig anpassning ska göra det enkelt för användaren, och att systemet därmed har hög användbarhet. Att se om det verkligen är så är syftet med denna studie.

    Inom ett projekt som avser ge familjer med tonåriga diabetiker IT-stöd gjordes en heuristisk utvärdering och intervjuer för att undersöka ett antal funktioner för personlig anpassning ur användbarhetsperspektiv.

    På det hela taget går det inte att säga att personlig anpassning vare sig är bra eller dåligt användbarhetsmässigt utan det avgörs av funktionernas utformning och kontexten. Det viktiga är att ge användaren stöd i sitt användande utan att för den skull styra eller störa hennes användning.

  • 502.
    Ackerholt, Per
    et al.
    Linköping University, Department of Management and Economics.
    Hartford, Henrik
    Linköping University, Department of Management and Economics.
    Identifiering av det logistiska förpackningssystemet En studie av teleutrustningsindustrin2001Independent thesis Advanced level (degree of Magister)Student thesis
    Abstract [en]

    Background: Due to outsourcing, the material flows in the telecom equipment industry have undergone major changes, which in turn has imposed new challenges for packaging supplier Nefab who delivers to the industry. In order to achieve market intelligence, Nefab wants to map the material flows, and investigate possibilities of further reusable logistical packaging systems.

    Purpose: The purpose of this thesis is to describe the typical features of the logistical material flows in a technically based, rapidly growing industry, and analyze the driving forces and obstacles, which influence the selection of logistical packaging system.

    Procedure: After developing a theoretical framework consisting of general logistical theories and theories related to logistical packaging, we have interviewed companies in the logistics channel of Ericsson Radio Systems.

    Results: We have found the main characteristics of material flows in our investigated industry to be Variations in Demand, Focus on Time-to-Customer, and Globalization of Logistics Channels. Regarding driving forces and obstacles in the selection of logistical packaging systems, we have identified Transportation Characteristics, Customer Demands, Quality, Handling & Administration, and Current Packaging System as important factors.

  • 503.
    Ackerley, R
    et al.
    Institute of Neuroscience and Physiology, University of Gothenburg, Sweden / SDS Clinic, ESRS accredited Sleep Research Laboratory, Gothenburg, Sweden.
    Badre, G
    Institute of Neuroscience and Physiology, University of Gothenburg, Sweden / SDS Clinic, ESRS accredited Sleep Research Laboratory, Gothenburg, Sweden.
    Olausson, Håkan
    Linköping University, Department of Clinical and Experimental Medicine, Division of Neuro and Inflammation Science. Linköping University, Faculty of Medicine and Health Sciences. Institute of Neuroscience and Physiology, University of Gothenburg, Sweden / SDS Clinic, ESRS accredited Sleep Research Laboratory, Gothenburg, Sweden.
    Positive Effects of a Weighted Blanket on Insomnia2015In: Journal of Sleep Medicine & Disorders, ISSN 2379-0822, Vol. 2, no 3, p. 1-7Article in journal (Refereed)
    Abstract [en]

    Insomnia is a common occurrence and can have a negative impact on physiological, psychological and social well-being. There is a need for simple, effective solutions to increase sleep quality. It has been suggested that weighted blankets and vests can provide a beneficial calming effect, especially in clinical disorders. Hence, we aimed to investigate the effects of a chain weighted blanket on insomnia, using objective and subjective measures. Objectively, we found that sleep bout time increased, as well as a decrease in movements of the participants, during weighted blanket use. Subjectively, the participants liked sleeping with the blanket, found it easier to settle down to sleep and had an improved sleep, where they felt more refreshed in the morning. Overall, we found that when the participants used the weighted blanket, they had a calmer night’s sleep. A weighted blanket may aid in reducing insomnia through altered tactile inputs, thus may provide an innovative, non-pharmacological approach and complementary tool to improve sleep quality.

  • 504.
    Ackerstierna, Joel
    et al.
    Linköping University, Department of Management and Engineering.
    Gullbrandsson, Marcus
    Linköping University, Department of Management and Engineering.
    Framtidens fastighetsbransch: PropTech och co-workings påverkan på kundvärdet i kontorslokaler: Identifikationen av de faktorer som möjliggör kundvärde och dess påverkan på tjänsteerbjudandet2018Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Problem definition: Digital innovation affects the world's economies and markets, where business-independent industry changes its way of working. The commercial real estate industry faces a change, where the two concepts of smart home and mobility change the appearance of the future market. On the market, there is an exponential increase in the number of companies utilizing the two concepts, companies collectively called PropTech companies, which act as catalysts for the transformation. Another trend is co-working, a new flexible office solution that utilizes the mobility change and disrupts the current value chain. These trends affect existing property managers, who should review their business model in view of the new technology to remain competitive. A major challenge with PropTech is the lack of understanding of the benefits it brings and what customer value it actually creates, making it difficult to create value offers that actually meet customer needs. The different types of PropTech and co-working provide a potential for new types of services that benefit the tenants in their business and can provide an easier work life balance.

    Purpose of the study: The purpose of this master thesis is to identify the impact PropTech and co-working has on commercial real estate tenants in Stockholm.

    Methodology: The study is of an exploratory character and aimed to explore what contributes to customer value for commercial tenants in Stockholm today and the impact PropTech and co-working has on it. The performance of the study was a combination of a cross-sectional approach, a qualitative, deductive and partly an inductive approach. A total of 16 semi-structured interviews were conducted, consisting of 11 property managers with internal management and five tenants working in the consulting industry. By interviewing tenants simultaneously with the property manager, it was established that the property managers' insight into the tenants' needs were in line with reality. The collected empirical data was analyzed on the basis of the applied reference framework and its factors that drive the customer value of tenants in office premises in Stockholm.

    Conclusions: The impact of digitization is of a complex nature and ranges from negative to positive aspects and everything in-between. The study identified four PropTech-services that can benefit company tenants in various ways and their impacts on customer value: property management, quantification & efficiency, office services and search platforms for working places. Co-working was also included as a service that affects customer value in office spaces.Identified factors creating customer value for company tenants were quality, adaptability, cost reduction and price. Each factor was further dissected to describe more accurately how it impacts tenants, these under factors consisted of tangibles, reliability, assurance, customer focus, co-creation, mass customization, flexibility, monetary costs, non-monetary costs, low cost and premium price.The study found that the most important aspect of property management, in order to have a positive impact on the tenants, is assurance. There also exists a potential positive impact for the service via non-monetary cost reductions. Furthermore, property management has a negative impact on customer focus and assurance. 

    The most important aspects of quantification & efficiency, in order to have a positive impact on the tenants, are tangibles, non-monetary cost reductions and flexibility. There also exists both a potential positive impact as well as a negligible impact for the service via monetary cost reductions.The most important aspect of office services, in order to have a positive impact on the tenants, is low price. There also exists a negligible impact for the service via non-monetary cost reductions.The most important aspects of search platforms for working places, in order to have a positive impact on the tenants, are flexibility and monetary cost reductions.The most important aspects of co-working, in order to have a positive impact on the tenants, are mass customization, flexibility and monetary cost reductions. There also exists a negative impact for the service via tangibles.The authors of this study encourage for further quantitative research regarding the subject.

  • 505.
    Acosta, Lilibeth
    et al.
    Potsdam Institute Climate Impact Research PIK, Germany .
    Klein, Richard J T
    Linköping University, Department of Thematic Studies, Department of Water and Environmental Studies. Linköping University, Faculty of Arts and Sciences. Linköping University, Department of Thematic Studies, Centre for Climate Science and Policy Research. Stockholm Environment Institute, Sweden .
    Reidsma, Pytrik
    Wageningen University, Netherlands .
    Metzger, Marc J
    University of Edinburgh, Scotland .
    Rounsevell, Mark D A
    University of Edinburgh, Scotland .
    Leemans, Rik
    Wageningen University, Netherlands .
    Schroeter, Dagmar
    Int Institute Appl Syst Anal, Austria .
    A spatially explicit scenario-driven model of adaptive capacity to global change in Europe2013In: Global Environmental Change, ISSN 0959-3780, E-ISSN 1872-9495, Vol. 23, no 5, p. 1211-1224Article in journal (Refereed)
    Abstract [en]

    Traditional impact models combine exposure in the form of scenarios and sensitivity in the form of parameters, providing potential impacts of global change as model outputs. However, adaptive capacity is rarely addressed in these models. This paper presents the first spatially explicit scenario-driven model of adaptive capacity, which can be combined with impact models to support quantitative vulnerability assessment. The adaptive capacity model is based on twelve socio-economic indicators, each of which is projected into the future using four global environmental change scenarios, and then aggregated into an adaptive capacity index in a stepwise approach using fuzzy set theory. The adaptive capacity model provides insight into broad patterns of adaptive capacity across Europe, the relative importance of the various determinants of adaptive capacity, and how adaptive capacity changes over time under different social and economic assumptions. As such it provides a context for the implementation of specific adaptation measures. This could improve integrated assessment models and could be extended to other regions. However, there is a clear need for a better theoretical understanding of the adaptive capacity concept, and its relationship to the actual implementation of adaptation measures. This requires more empirical research and coordinated meta-analyses across regions and economic sectors, and the development of bottom-up modelling techniques that can incorporate human decision making.

  • 506.
    Acosta Navarro, J. C.
    et al.
    Stockholm University, Sweden .
    Smolander, S.
    University of Helsinki, Finland .
    Struthers, Hamish
    Linköping University, National Supercomputer Centre (NSC).
    Zorita, E.
    Institute for Coastal Research, Geesthacht, Germany.
    Ekman, A. M. L.
    Stockholm University, Sweden .
    Kaplan, J. O.
    Ecole Polytechnique Federal de Lausanne, Switzerland.
    Guenther, A.
    PNNL, Richland, WA USA .
    Arneth, A.
    Karlsruhe Institute of Technology, Garmisch-Partenkirchen, Germany.
    Riipinen, I.
    Stockholm University, Sweden .
    Global emissions of terpenoid VOCs from terrestrial vegetation in the last millennium2014In: Journal of Geophysical Research - Atmospheres, ISSN 2169-897X, E-ISSN 2169-8996, Vol. 119, no 11, p. 6867-6885Article in journal (Refereed)
    Abstract [en]

    We investigated the millennial variability (1000 A.D.-2000 A.D.) of global biogenic volatile organic compound (BVOC) emissions by using two independent numerical models: The Model of Emissions of Gases and Aerosols from Nature (MEGAN), for isoprene, monoterpene, and sesquiterpene, and Lund-Potsdam-Jena-General Ecosystem Simulator (LPJ-GUESS), for isoprene and monoterpenes. We found the millennial trends of global isoprene emissions to be mostly affected by land cover and atmospheric carbon dioxide changes, whereas monoterpene and sesquiterpene emission trends were dominated by temperature change. Isoprene emissions declined substantially in regions with large and rapid land cover change. In addition, isoprene emission sensitivity to drought proved to have significant short-term global effects. By the end of the past millennium MEGAN isoprene emissions were 634 TgC yr-1 (13% and 19% less than during 1750-1850 and 1000-1200, respectively), and LPJ-GUESS emissions were 323 TgC yr-1(15% and 20% less than during 1750-1850 and 1000-1200, respectively). Monoterpene emissions were 89 TgC yr-1(10% and 6% higher than during 1750-1850 and 1000-1200, respectively) in MEGAN, and 24 TgC yr-1 (2% higher and 5% less than during 1750-1850 and 1000-1200, respectively) in LPJ-GUESS. MEGAN sesquiterpene emissions were 36 TgC yr-1(10% and 4% higher than during 1750-1850 and 1000-1200, respectively). Although both models capture similar emission trends, the magnitude of the emissions are different. This highlights the importance of building better constraints on VOC emissions from terrestrial vegetation.

  • 507.
    Acosta Navarro, J. C.
    et al.
    Stockholm University, Sweden.
    Varma, V.
    Stockholm University, Sweden.
    Riipinen, I.
    Stockholm University, Sweden.
    Seland, O.
    Norwegian Meteorol Institute, Norway.
    Kirkevag, A.
    Norwegian Meteorol Institute, Norway.
    Struthers, Hamish
    Linköping University, National Supercomputer Centre (NSC). Stockholm University, Sweden.
    Iversen, T.
    Norwegian Meteorol Institute, Norway.
    Hansson, H. -C.
    Stockholm University, Sweden; Stockholm University, Sweden.
    Ekman, A. M. L.
    Stockholm University, Sweden.
    Amplification of Arctic warming by past air pollution reductions in Europe2016In: Nature Geoscience, ISSN 1752-0894, E-ISSN 1752-0908, Vol. 9, no 4, p. 277-281Article in journal (Refereed)
    Abstract [en]

    The Arctic region is warming considerably faster than the rest of the globe(1), with important consequences for the ecosystems(2) and human exploration of the region(3). However, the reasons behind this Arctic amplification are not entirely clear(4). As a result of measures to enhance air quality, anthropogenic emissions of particulate matter and its precursors have drastically decreased in parts of the Northern Hemisphere over the past three decades(5). Here we present simulations with an Earth system model with comprehensive aerosol physics and chemistry that show that the sulfate aerosol reductions in Europe since 1980 can potentially explain a significant fraction of Arctic warming over that period. Specifically, the Arctic region receives an additional 0.3Wm(-2) of energy, and warms by 0.5 degrees C on annual average in simulations with declining European sulfur emissions in line with historical observations, compared with a model simulation with fixed European emissions at 1980 levels. Arctic warming is amplified mainly in fall and winter, but the warming is initiated in summer by an increase in incoming solar radiation as well as an enhanced poleward oceanic and atmospheric heat transport. The simulated summertime energy surplus reduces sea-ice cover, which leads to a transfer of heat from the Arctic Ocean to the atmosphere. We conclude that air quality regulations in the Northern Hemisphere, the ocean and atmospheric circulation, and Arctic climate are inherently linked.

  • 508. Adage, Tiziana
    et al.
    Scheurink, Anton
    de Boer, Sietse
    de Vries, Koert
    Konsman, Jan Pieter
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Biomedicine and Surgery, Cell biology.
    Kuipers, Folkert
    Adan, Roger
    Baskin, Denis
    Schwartz, Michael
    van Dijk, Gertjan
    Hypothalamic, metabolic,and behavioral responses to pharmacological inhibition of CNS melanocortin signaling in rats.2001In: Journal of Neuroscience, ISSN 0270-6474, E-ISSN 1529-2401, Vol. 21, p. 3639-3645Article in journal (Refereed)
  • 509.
    Adage, Tiziana
    et al.
    University of Groningen.
    Scheurink, Anton J W
    University of Groningen.
    de Boer, Sietse F
    University of Groningen.
    de Vries, Koert
    University of Groningen.
    Konsman, Jan Pieter
    Linköping University, Department of Biomedicine and Surgery. Linköping University, Faculty of Health Sciences.
    Kuipers, Folkert
    University Hospital, Groningen.
    Adan, Roger A H
    University of Utrecht.
    Baskin, Denis G
    University of Washington.
    Schwartz, Michael W
    University of Washington and Harborview Medical Center.
    van Dijk, Gertjan
    University of Groningen.
    Hypothalamic, metabolic, and behavioral responses to pharmacological inhibition of CNS melanocortin signaling in rats2001In: Journal of Neuroscience, ISSN 0270-6474, E-ISSN 1529-2401, Vol. 21, no 10, p. 3639-3645Article in journal (Refereed)
    Abstract [en]

    The CNS melanocortin (MC) system is implicated as a mediator of the central effects of leptin, and reduced activity of the CNS MC system promotes obesity in both rodents and humans. Because activation of CNS MC receptors has direct effects on autonomic outflow and metabolism, we hypothesized that food intake- independent mechanisms contribute to development of obesity induced by pharmacological blockade of MC receptors in the brain and that changes in hypothalamic neuropeptidergic systems known to regulate weight gain [i. e., corticotropin-releasing hormone (CRH), cocaine- amphetamine- related transcript (CART), proopiomelanocortin (POMC), and neuropeptide Y (NPY)] would trigger this effect. Relative to vehicle- treated controls, third intracerebroventricular (i3vt) administration of the MC receptor antagonist SHU9119 to rats for 11 d doubled food and water intake (toward the end of treatment) and increased body weight (similar to 14%) and fat content (similar to 90%), hepatic glycogen content (similar to 40%), and plasma levels of cholesterol (similar to 48%), insulin (similar to 259%), glucagon (similar to 80%), and leptin (similar to 490%), whereas spontaneous locomotor activity and body temperature were reduced. Pair- feeding of i3vt SHU9119- treated animals to i3vt vehicle- treated controls normalized plasma levels of insulin, glucagon, and hepatic glycogen content, but only partially reversed the elevations of plasma cholesterol (similar to 31%) and leptin (similar to 104%) and body fat content (similar to 27%). Reductions in body temperature and locomotor activity induced by i3vt SHU9119 were not reversed by pair feeding, but rather were more pronounced. None of the effects found can be explained by peripheral action of the compound. The obesity effects occurred despite a lack in neuropeptide expression responses in the neuroanatomical range selected across the arcuate (i. e., CART, POMC, and NPY) and paraventricular (i. e., CRH) hypothalamus. The results indicate that reduced activity of the CNS MC pathway promotes fat deposition via both food intake- dependent and -independent mechanisms.

  • 510.
    Adair, R.K.
    et al.
    Department of Physics, Yale University, PO Box 208121, New Haven, CT 06520-8121, United States.
    Sernelius, Bo
    Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Theoretical Physics.
    Balzano, Q.
    Dept. of Elec. and Comp. Engineering, A.V. Williams Building, University of Maryland, College Park, MD 20742, United States.
    Comment on "Possible induced enhancement of dispersion forces by cellular phones" by B. E. Sernelius, Phys. Chem. Chem. Phys., 2004, 6, 13632004In: Physical Chemistry, Chemical Physics - PCCP, ISSN 1463-9076, E-ISSN 1463-9084, Vol. 6, no 14, p. 3915-3918p. 1363-Article in journal (Other academic)
    Abstract [en]

    [No abstract available]

  • 511.
    Adam, Stefan
    et al.
    Leibniz Institute Polymerforsch eV, Germany; Technical University of Dresden, Germany.
    Koenig, Meike
    Leibniz Institute Polymerforsch eV, Germany; Technical University of Dresden, Germany; Karlsruhe Institute Technology, Germany.
    Rodenhausen, Keith Brian
    University of Nebraska, NE 68588 USA; Biolin Science Inc, NJ 07652 USA.
    Eichhorn, Klaus-Jochen
    Leibniz Institute Polymerforsch eV, Germany.
    Oertel, Ulrich
    Leibniz Institute Polymerforsch eV, Germany.
    Schubert, Mathias
    Linköping University, Department of Physics, Chemistry and Biology, Semiconductor Materials. Linköping University, Faculty of Science & Engineering. Leibniz Institute Polymerforsch eV, Germany; University of Nebraska, NE 68588 USA; University of Nebraska, NE 68588 USA.
    Stamm, Manfred
    Leibniz Institute Polymerforsch eV, Germany; Technical University of Dresden, Germany.
    Uhlmann, Petra
    Leibniz Institute Polymerforsch eV, Germany; University of Nebraska, NE 68588 USA.
    Quartz crystal microbalance with coupled Spectroscopic Ellipsometry-study of temperature-responsive polymer brush systems2017In: Applied Surface Science, ISSN 0169-4332, E-ISSN 1873-5584, Vol. 421, p. 843-851Article in journal (Refereed)
    Abstract [en]

    Using a combined setup of quartz crystal microbalance with dissipation monitoring together with spectroscopic ellipsometry, the thermo-responsive behavior of two different brush systems (poly(N-isopropyl acrylamide) and poly(2-oxazoline)s) was investigated and compared to the behavior of the free polymer in solution. Poly(2-oxazoline)s with three different hydrophilicities were prepared by changing the content of a hydrophilic comonomer. While both polymer types exhibit a sharp, discontinuous thermal transition in solution, in the brush state the transition gets broader in the case of poly(N-isopropyl acrylamide) and is transformed into a continuous transition for poly(2-oxazoline)s. The position of the transition in solution is influenced by the degree of hydrophilicity of the poly(2-oxazoline). The difference in areal mass detected by quartz crystal microbalance and by spectroscopic ellipsometry, has been attributed to the chain segment density profile of the polymer brushes. Applying this density profile information, for poly(N-isopropyl acrylamide) two different swelling stages could be identified, while for poly(2-oxazoline) the transition between a parabolic and more step-wise profile is found continuous. The different swelling characteristics were attributed to the different miscibility behavior types, with the brush state acting similar to a crosslinked system. (C) 2017 Elsevier B.V. All rights reserved.

  • 512.
    Adam, Wettring
    Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, Faculty of Science & Engineering.
    Adaptive Filtering and Nonlinear Models for Post-processing of Weather Forecasts2015Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Kalman filters have been used by SMHI to improve the quality of their forecasts. Until now they have used a linear underlying model to do this. In this thesis it is investigated whether the performance can be improved by the use of nonlinear models such as polynomials and neural networks. The results suggest that an improvement is hard to achieve by this approach and that it is likely not worth the effort to implement a nonlinear model.

  • 513.
    Adamopoulos, Stamatis
    et al.
    Onassis Cardiac Surg Ctr, Greece.
    Corra, Ugo
    Ctr Med Riabilitaz Veruno, Italy.
    Laoutaris, Ioannis D.
    Onassis Cardiac Surg Ctr, Greece.
    Pistono, Massimo
    Ctr Med Riabilitaz Veruno, Italy.
    Agostoni, Pier Giuseppe
    IRCCS, Italy; Univ Milan, Italy.
    Coats, Andrew J. S.
    IRCCS San Raffaele Pisana, Italy.
    Leiro, Maria G. Crespo
    UDC, Spain.
    Cornelis, Justien
    Univ Antwerp, Belgium.
    Davos, Constantinos H.
    Acad Athens, Greece.
    Filippatos, Gerasimos
    Attikon Univ Hosp, Greece.
    Lund, Lars H.
    Karolinska Inst, Sweden; Karolinska Univ Hosp, Sweden.
    Jaarsma, Tiny
    Linköping University, Department of Social and Welfare Studies, Division of Nursing Science. Linköping University, Faculty of Medicine and Health Sciences.
    Ruschitzka, Frank
    Univ Heart Ctr, Switzerland.
    Seferovic, Petar M.
    Univ Belgrade, Serbia.
    Schmid, Jean-Paul
    Klin Barmelweid AG, Switzerland.
    Volterrani, Maurizio
    IRCCS San Raffaele Pisana, Italy.
    Piepoli, Massimo F.
    Guglielmo da Saliceto Hosp, Italy.
    Exercise training in patients with ventricular assist devices: a review of the evidence and practical advice. A position paper from the Committee on Exercise Physiology and Training and the Committee of Advanced Heart Failure of the Heart Failure Association of the European Society of Cardiology2019In: European Journal of Heart Failure, ISSN 1388-9842, E-ISSN 1879-0844, Vol. 21, no 1Article, review/survey (Refereed)
    Abstract [en]

    Exercise training (ET) and secondary prevention measures in cardiovascular disease aim to stimulate early physical activity and to facilitate recovery and improve health behaviours. ET has also been proposed for heart failure patients with a ventricular assist device (VAD), to help recovery in the patients functional capacity. However, the existing evidence in support of ET in these patients remains limited. After a review of current knowledge on the causes of the persistence of limitation in exercise capacity in VAD recipients, and concerning the benefit of ET in VAD patients, the Heart Failure Association of the European Society of Cardiology has developed the present document to provide practical advice on implementing ET. This includes appropriate screening to avoid complications and then starting with early mobilisation, ET prescription is individualised to meet the patients needs. Finally, gaps in our knowledge are discussed.

  • 514.
    Adamovic, Dragan
    Linköping University, Department of Behavioural Sciences and Learning. Linköping University, Faculty of Educational Sciences.
    Lärarkontroll eller elevers självkontroll: En studie om vilken ledarstil gymnasieelever föredrar i klassrummet2015Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Ledarstilar i klassrummet kan rangordnas på ett kontrollkontinuum med hög grad av lärarkontroll i den ena ändenoch hög grad av elevers självkontroll i den andra änden. Syftet med studien var att undersöka vilken ledarstil gymnasieelever på ett naturvetenskapsprogram föredrar i klassrummet. En enkätundersökning har genomförts med 31 elever i årskurs 1 och 24 elever i årskurs 3. Undersökningen visar att en majoritet av gymnasieleverna föredrar ledarstilar som präglas av lärarkontroll. Undersökningen visar också att eleverna överlag vill vara delaktiga i planeringen av undervisningen och bedömningen av kunskaper. Dock är de flesta av eleverna överens om att läraren är den som skapar och bibehåller ordningen i klassrummet. En möjlig förklaring till iakttagelsen är att eleverna vill utöva ett inflytande i klassrummet men saknar de färdigheter som krävs. En annan förklaring är att de är skeptiska till ett inflytande eftersom de inte vill riskera att bli dömda av klasskompisar eller läraren för sina åsikter och värderingar.I jämförelsen mellan elever i årskurs 1 och årskurs 3, föredrar de äldre eleverna i större utsträckning lärarkontroll i klassrummet. I jämförelsen mellan meritvärdesgrupper, föredrar de högpresterande eleverna i större utsträckning lärarkontroll i klassrummet än de låg och mellanpresterande. En trolig förklaring är att de äldre eleverna och de högpresterande eleverna inte vill ta det inflytande och ansvar som erbjuds eftersom det är både energikrävande och tar för mycket tid av den viktiga ämnesundervisningen.

  • 515.
    Adamovic, Dragan
    Linköping University, Department of Physics, Chemistry and Biology, Theoretical Physics. Linköping University, The Institute of Technology.
    Molecular Dynamics Studies of Low-Energy Atom Impact Phenomena on Metal Surfaces during Crystal Growth2006Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    It is a well-known fact in the materials science community that the use of low-energy atom impacts during thin film deposition is an effective tool for altering the growth behavior and for increasing the crystallinity of the films. However, the manner in which the incident atoms affect the growth kinetics and surface morphology is quite complicated and still not fully understood. This provides a strong incentive for further investigations of the interaction among incident atoms and surface atoms on the atomic scale. These impact-induced energetic events are non-equilibrium, transient processes which complete in picoseconds. The only accessible technique today which permits direct observation of these events is molecular dynamics (MD) simulations.

    This thesis deals with MD simulations of low-energy atom impact phenomena on metal surfaces during crystal growth. Platinum is chosen as a model system given that it has seen extended use as a model surface over the past few decades, both in experiments and simulations. In MD, the classical equations of motion are solved numerically for a set of interacting atoms. The atomic interactions are calculated using the embedded atom method (EAM). The EAM is a semi-empirical, pair-functional interatomic potential based on density functional theory. This potential provides a physical picture that includes many-atom effects while retaining computational efficiency needed for larger systems.

    Single adatoms residing on a surface constitute the smallest possible clusters and are the fundamental components controlling nucleation kinetics. Small two-dimensional clusters on a surface are the result of nucleation and are present during the early stages of growth. These surface structures are chosen as targets in the simulations (papers I and II) to provide further knowledge of the atomistic processes which occur during deposition, to investigate at which impact energies the different kinetic pathways open up, and how they may affect growth behavior. Some of the events observed are adatom scattering, dimer formation, cluster disruption, formation of three-dimensional clusters, and residual vacancy formation. Given the knowledge obtained, papers III and IV deal with growth of several layers with the aim to study the underlying mechanisms responsible for altering growth behavior and how the overall intra- and interlayer atomic migration can be controlled by low-energy atom impacts.

    List of papers
    1. Low-energy ion irradiation during film growth: Kinetic pathways leading to enhanced adatom migration rates
    Open this publication in new window or tab >>Low-energy ion irradiation during film growth: Kinetic pathways leading to enhanced adatom migration rates
    Show others...
    2005 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 86, p. 211915-Article in journal (Refereed) Published
    Abstract [en]

    Embedded-atom molecular dynamics simulations are used to investigate the effects of low-energy self-ion irradiation of Pt adatoms on Pt(111). Here, we concentrate on self-bombardment dynamics, i.e., isolating and monitoring the atomic processes, induced by normally incident Pt atoms with energies E ranging from 5 to 50 eV, that can affect intra- and interlayer mass transport.. We find that adatom scattering, surface channeling, and dimer formation occur at all energies. Atomic intermixing events involving incident and terrace atoms are observed at energies 15  eV, while the collateral formation of residual surface vacancies is observed only with E>40  eV. The overall effect of low-energy self-ion irradiation is to enhance lateral adatom and terrace atom migration. ©2005 American Institute of Physics

    Keywords
    platinum, adsorbed layers, ion beam effects, molecular dynamics method, channelling, vacancies (crystal), diffusion, metallic thin films, surface structure
    National Category
    Natural Sciences
    Identifiers
    urn:nbn:se:liu:diva-13934 (URN)10.1063/1.1940122 (DOI)
    Available from: 2006-08-29 Created: 2006-08-29 Last updated: 2017-12-13
    2. Enhanced intra- and interlayer mass transport on Pt(111) via 5 - 50 eV Pt atom impacts on two-dimensional Pt clusters
    Open this publication in new window or tab >>Enhanced intra- and interlayer mass transport on Pt(111) via 5 - 50 eV Pt atom impacts on two-dimensional Pt clusters
    Show others...
    2006 (English)In: Thin Solid Films, ISSN 0040-6090, E-ISSN 1879-2731, Vol. 515, no 4, p. 2235-2243Article in journal (Refereed) Published
    Abstract [en]

    Embedded-atom molecular dynamics simulations were used to investigate the effects of low-energy (5–50 eV) normally-incident self-ion irradiation of two-dimensional compact Pt3, Pt7, Pt19, and Pt37 clusters on Pt(111). We follow atomistic pathways leading to bombardment-induced intra- and interlayer mass transport. The results can be described in terms of three impact energy regimes. With E ≤ 20 eV, we observe an increase in 2D island dimensions and negligible residual point defect formation. As the impact energy is raised above 20 eV, we observe an increase in irradiation-induced lateral mass transport, a decrease in island size, and the activation of interlayer processes. For E ≥ 35 eV, this trend continues, but point defects, in the form of surface vacancies, are also formed. The results illustrate the richness of the dynamical interaction mechanisms occurring among incident energetic species, target clusters, and substrate atoms, leading to island preservation, reconfiguration, disruption and/or residual point defects formation. We discuss the significance of these results in terms of thin film growth.

    Keywords
    Ion bombardment; Platinum; Clusters; Atomistic dynamics
    National Category
    Natural Sciences
    Identifiers
    urn:nbn:se:liu:diva-13935 (URN)10.1016/j.tsf.2006.05.028 (DOI)
    Available from: 2006-08-29 Created: 2006-08-29 Last updated: 2017-12-13
    3. Kinetic pathways leading to layer-by-layer growth from hyperthermal atoms: A Multibillion time step molecular dynamics study
    Open this publication in new window or tab >>Kinetic pathways leading to layer-by-layer growth from hyperthermal atoms: A Multibillion time step molecular dynamics study
    Show others...
    2007 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 76, p. 115418-115425Article in journal (Refereed) Published
    Abstract [en]

    We employ multibillion time step embedded-atom molecular dynamics simulations to investigate the homoepitaxial growth of Pt(111) from hyperthermal Pt atoms (EPt=0.2–50eV) using deposition fluxes approaching experimental conditions. Calculated antiphase diffraction intensity oscillations, based on adatom coverages as a function of time, reveal a transition from a three-dimensional multilayer growth mode with EPt<20eV to a layer-by-layer growth with EPt≥20eV. We isolate the effects of irradiation-induced processes and thermally activated mass transport during deposition in order to identify the mechanisms responsible for promoting layer-by-layer growth. Direct evidence is provided to show that the observed transition in growth modes is primarily due to irradiation-induced processes which occur during the 10ps following the arrival of each hyperthermal atom. The kinetic pathways leading to the transition involve both enhanced intralayer and interlayer adatom transport, direct incorporation of energetic atoms into clusters, and cluster disruption leading to increased terrace supersaturation.

    Place, publisher, year, edition, pages
    American Physical Society, 2007
    National Category
    Natural Sciences
    Identifiers
    urn:nbn:se:liu:diva-38795 (URN)10.1103/PhysRevB.76.115418 (DOI)45667 (Local ID)45667 (Archive number)45667 (OAI)
    Note

    The previous status of this article was Manuscript.

    Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2017-12-13Bibliographically approved
    4. Controlled intra- and interlayer mass transport during low-energy Pt(111) homoepitaxy
    Open this publication in new window or tab >>Controlled intra- and interlayer mass transport during low-energy Pt(111) homoepitaxy
    Show others...
    (English)Manuscript (Other academic)
    National Category
    Engineering and Technology
    Identifiers
    urn:nbn:se:liu:diva-13937 (URN)
    Available from: 2006-08-29 Created: 2006-08-29 Last updated: 2014-04-14
  • 516.
    Adamovic, Dragan
    et al.
    Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Theoretical Physics.
    Chirita, Valeriu
    Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Thin Film Physics.
    Münger, Peter
    Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Theoretical Physics.
    Hultman, Lars
    Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Thin Film Physics.
    Greene, J.E.
    Materials Science Department and the Frederick Seitz Materials Research Laboratory, University of Illinois, Urbana, USA.
    Kinetic pathways leading to layer-by-layer growth from hyperthermal atoms: A Multibillion time step molecular dynamics study2007In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 76, p. 115418-115425Article in journal (Refereed)
    Abstract [en]

    We employ multibillion time step embedded-atom molecular dynamics simulations to investigate the homoepitaxial growth of Pt(111) from hyperthermal Pt atoms (EPt=0.2–50eV) using deposition fluxes approaching experimental conditions. Calculated antiphase diffraction intensity oscillations, based on adatom coverages as a function of time, reveal a transition from a three-dimensional multilayer growth mode with EPt<20eV to a layer-by-layer growth with EPt≥20eV. We isolate the effects of irradiation-induced processes and thermally activated mass transport during deposition in order to identify the mechanisms responsible for promoting layer-by-layer growth. Direct evidence is provided to show that the observed transition in growth modes is primarily due to irradiation-induced processes which occur during the 10ps following the arrival of each hyperthermal atom. The kinetic pathways leading to the transition involve both enhanced intralayer and interlayer adatom transport, direct incorporation of energetic atoms into clusters, and cluster disruption leading to increased terrace supersaturation.

  • 517.
    Adamovic, Dragan
    et al.
    Linköping University, Department of Physics, Chemistry and Biology.
    Chirita, Valeriu
    Münger, Peter
    Linköping University, Department of Physics, Chemistry and Biology, Theoretical Physics. Linköping University, The Institute of Technology.
    Hultman, Lars
    Greene, Joe
    Controlled intra- and interlayer mass transport during low-energy Pt(111) homoepitaxyManuscript (Other academic)
  • 518.
    Adamovic, Dragan
    et al.
    Linköping University, Department of Physics, Chemistry and Biology, Theoretical Physics . Linköping University, The Institute of Technology.
    Chirita, Valeriu
    Linköping University, Department of Physics, Chemistry and Biology, Thin Film Physics. Linköping University, The Institute of Technology.
    Münger, Peter
    Linköping University, Department of Physics, Chemistry and Biology, Theoretical Physics . Linköping University, The Institute of Technology.
    Hultman, Lars
    Linköping University, Department of Physics, Chemistry and Biology, Thin Film Physics. Linköping University, The Institute of Technology.
    Greene, Joe
    University of Illinois.
    Enhanced intra- and interlayer mass transport on Pt(111) via 5 - 50 eV Pt atom impacts on two-dimensional Pt clusters2006In: Thin Solid Films, ISSN 0040-6090, E-ISSN 1879-2731, Vol. 515, no 4, p. 2235-2243Article in journal (Refereed)
    Abstract [en]

    Embedded-atom molecular dynamics simulations were used to investigate the effects of low-energy (5–50 eV) normally-incident self-ion irradiation of two-dimensional compact Pt3, Pt7, Pt19, and Pt37 clusters on Pt(111). We follow atomistic pathways leading to bombardment-induced intra- and interlayer mass transport. The results can be described in terms of three impact energy regimes. With E ≤ 20 eV, we observe an increase in 2D island dimensions and negligible residual point defect formation. As the impact energy is raised above 20 eV, we observe an increase in irradiation-induced lateral mass transport, a decrease in island size, and the activation of interlayer processes. For E ≥ 35 eV, this trend continues, but point defects, in the form of surface vacancies, are also formed. The results illustrate the richness of the dynamical interaction mechanisms occurring among incident energetic species, target clusters, and substrate atoms, leading to island preservation, reconfiguration, disruption and/or residual point defects formation. We discuss the significance of these results in terms of thin film growth.

  • 519.
    Adamovic, Dragan
    et al.
    Linköping University, Department of Physics, Chemistry and Biology, Theoretical Physics . Linköping University, The Institute of Technology.
    Münger, Peter
    Linköping University, Department of Physics, Chemistry and Biology, Theoretical Physics . Linköping University, The Institute of Technology.
    Chirita, Valeriu
    Linköping University, Department of Physics, Chemistry and Biology, Thin Film Physics. Linköping University, The Institute of Technology.
    Hultman, Lars
    Linköping University, Department of Physics, Chemistry and Biology, Thin Film Physics. Linköping University, The Institute of Technology.
    Greene, Joe
    University of Illinois.
    Low-energy ion irradiation during film growth: Kinetic pathways leading to enhanced adatom migration rates2005In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 86, p. 211915-Article in journal (Refereed)
    Abstract [en]

    Embedded-atom molecular dynamics simulations are used to investigate the effects of low-energy self-ion irradiation of Pt adatoms on Pt(111). Here, we concentrate on self-bombardment dynamics, i.e., isolating and monitoring the atomic processes, induced by normally incident Pt atoms with energies E ranging from 5 to 50 eV, that can affect intra- and interlayer mass transport.. We find that adatom scattering, surface channeling, and dimer formation occur at all energies. Atomic intermixing events involving incident and terrace atoms are observed at energies 15  eV, while the collateral formation of residual surface vacancies is observed only with E>40  eV. The overall effect of low-energy self-ion irradiation is to enhance lateral adatom and terrace atom migration. ©2005 American Institute of Physics

  • 520.
    Adamowicz, Tomasz
    et al.
    Linköping University, Department of Mathematics, Mathematics and Applied Mathematics. Linköping University, The Institute of Technology.
    Björn, Anders
    Linköping University, Department of Mathematics, Mathematics and Applied Mathematics. Linköping University, The Institute of Technology.
    Björn, Jana
    Linköping University, Department of Mathematics, Mathematics and Applied Mathematics. Linköping University, The Institute of Technology.
    Regularity of p(.)-superharmonic functions, the Kellogg property and semiregular boundary points2014In: Annales de l'Institut Henri Poincare. Analyse non linéar, ISSN 0294-1449, E-ISSN 1873-1430, Vol. 31, no 6, p. 1131-1153Article in journal (Refereed)
    Abstract [en]

    We study various boundary and inner regularity questions for p(.)-(super)harmonic functions in Euclidean domains. In particular, we prove the Kellogg property and introduce a classification of boundary points for p(.)-harmonic functions into three disjoint classes: regular, semiregular and strongly irregular points. Regular and especially semiregular points are characterized in many ways. The discussion is illustrated by examples. Along the way, we present a removability result for bounded p(.)-harmonic functions and give some new characterizations of W-0(1,p(.)) spaces. We also show that p(.)-superharmonic functions are lower semicontinuously regularized, and characterize them in terms of lower semicontinuously regularized supersolutions.

  • 521.
    Adamowicz, Tomasz
    et al.
    Linköping University, Department of Mathematics, Mathematics and Applied Mathematics. Linköping University, The Institute of Technology.
    Björn, Anders
    Linköping University, Department of Mathematics, Mathematics and Applied Mathematics. Linköping University, The Institute of Technology.
    Björn, Jana
    Linköping University, Department of Mathematics, Mathematics and Applied Mathematics. Linköping University, The Institute of Technology.
    Shanmugalingam, Nageswari
    University of Cincinnati, OH USA .
    Prime ends for domains in metric spaces2013In: Advances in Mathematics, ISSN 0001-8708, E-ISSN 1090-2082, Vol. 238, p. 459-505Article in journal (Refereed)
    Abstract [en]

    In this paper we propose a new definition of prime ends for domains in metric spaces under rather general assumptions. We compare our prime ends to those of Caratheodory and Nakki. Modulus ends and prime ends, defined by means of the p-modulus of curve families, are also discussed and related to the prime ends. We provide characterizations of singleton prime ends and relate them to the notion of accessibility of boundary points, and introduce a topology on the prime end boundary. We also study relations between the prime end boundary and the Mazurkiewicz boundary. Generalizing the notion of John domains, we introduce almost John domains, and we investigate prime ends in the settings of John domains, almost John domains and domains which are finitely connected at the boundary.

  • 522.
    Adams, David A.
    et al.
    Department of Biology, Middle Tennessee State University, USA.
    Walck, Jeffery L.
    Department of Biology, Middle Tennessee State University, USA.
    Howard, R. Stephen
    Department of Biology, Middle Tennessee State University, USA.
    Milberg, Per
    Linköping University, Department of Physics, Chemistry and Biology, Ecology. Linköping University, The Institute of Technology.
    Forest Composition and Structure onGlade-forming Limestones in Middle Tennessee2012In: Castanea, ISSN 0008-7475, Vol. 77, no 4, p. 335-347Article in journal (Refereed)
    Abstract [en]

    Within a successional context, the vegetation associated with the cedar gladeecosystem in middle Tennessee develops from bare limestone bedrock to subclimax redcedar,preclimax oak-hickory, and climax mixed hardwood forests. Studies on the composition andstructure of forests associated with cedar glade–forming limestones (Lebanon, Ridley) are rare.We sampled the canopy and understory of six forest stands in middle Tennessee on theselimestones. Observed number of canopy species was 14–24 across stands; estimated richnesswas greater by 1–3 species (bootstrap) or 3–6 species (first-order jackknife) than observedrichness. With the exception of Ailanthus altissima in one stand, all other canopy species werenative. Juniperus virginiana, Fraxinus americana, Carya ovata, and Quercus muehlenbergii wereprimary canopy components in 4 or 6 stands, and C. glabra, Q. shumardii, Ulmus alata, F.quadrangulata, Q. alba, and Q. velutina in 2–3 stands. When we included stands from apreviously published study (most on the non-glade Carters Limestone) with our data, aprincipal components analysis identified three groups with the axes approximating a moisturebedrockgradient and a time-successional gradient. An examination of regeneration in ourstands predicts that (1) mesophytes and/or fire-sensitive species (Acer saccharum, Fraxinus spp.,Celtis spp.) will increase and (2) xerophytes and/or fire-adapted species (Quercus spp., Caryaspp.) will decrease. Altogether, our results strongly suggest that the oak-hickory stage shown insuccessional outlines of vegetation development associated with the cedar glade ecosystem maynot occur in its current state in the future.

  • 523. Adamson, L.
    et al.
    Lyxell, Björn
    Linköping University, Department of Behavioural Sciences.
    Identity during late adolescence: Personal future images1999In: Society for Research on Identity Formation 6th Annual Conference,1999, 1999Conference paper (Refereed)
  • 524.
    Adamson, Lena
    Linköping University, Department of Education and Psychology. Linköping University, Faculty of Educational Sciences. Univ.,.
    Like circles on the water: a study of adolescent identity1999Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    This thesis explores the subject of identity development during late adolescence (16-20 years). Three questions were asked, each related to one domain of interest; a) how do adolescents perceive and describe themselves (adolescents' self-concept), b) what do they consider important in their lives (adolescents' existential questions), and, c) how do they describe their contacts with adult people (adolescents' contacts with adults)? The thesis includes three studies and uses a multimethodological approach, comprising interviews, a personality inventory, sentence-completion tasks and questionnaires.

    The results can be summarized as follows. The majority of the respondents had a positive view of themselves. An inconsistent self-concept was related to a number of negative factors. Existential questions mainly concerned one's personal future. Most respondents felt the need of adults in their lives, primarily due to adults' experience and knowledge.

    The main conclusions can be summarized in four points. First, identity development during late adolescence needs to be discussed in terms of processes of integration. This term emphasizes continuity and interaction, rather than autonomy and separation, terms that have dominated this field for a long time. Second, identity development during late adolescence can be illustrated by means of expanding circles. The centre is constituted by the adolescent's picture of her/himself (i.e., personal integration), whereas the periphery consists of the adolescent's picture of her /himself in relation to other people and society at large (i.e., social integration). Third, lack of personal integration at this age level signals an undesirable developmental process. Fourth, adolescent - adult interaction is one important factor in relation to social integration. Here the adolescent learns to develop her /his interactional skills in order to regulate and balance her /his own life space in relation to others'. However, the results also suggest that opportunities for social interaction between adolescents and adults outside their families are insufficient and need to be improved.

  • 525.
    Adamson, Lena
    Linköping University, Faculty of Arts and Sciences. Linköping University, Department of Behavioural Sciences.
    Teachers' knowledge about adolescents - an interview study2000In: International Journal of Psychology, ISSN 0020-7594, E-ISSN 1464-066X, Vol. 35, no 3-4, p. 427-427Conference paper (Other academic)
  • 526.
    Adamsson, Eric
    Linköping University, Faculty of Arts and Sciences. Linköping University, Department of Management and Engineering, Commercial and Business Law.
    Produkters funktionsskador ur ett skadestånds- och försäkringsrättsligt perspektiv: Om säljares skadeståndsskyldighet när levererade produkter är behäftade med funktionsfel, samt om ansvarsförsäkringens betydelse för funktionsfel2018Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [sv]

    I denna uppsats behandlas kommersiella säljares skadeståndsansvar när levererade produkter är behäftade med funktionsfel. Funktionsfel i produkter kännetecknas av att felaktiga detaljer från tillverkningen av en beståndsdel orsakar en minskad funktion i slutprodukten. I uppsatsen klarläggs även vilken betydelse ansvarsförsäkringen har för köparens möjligheter att erhålla ersättning när denna drabbats av funktionsskador härledda av köpt felaktig egendom.

    I uppsatsen undersöks ingrediens- och komponentskador ur främst ett skadestånds- och försäkringsrättsligt perspektiv, med avsikten att klargöra säljarens skadeståndsskyldighet i inomobligatoriska förhållanden samt vilka ansvarsgrunder som är aktuella i utomobligatoriska relationer. Även det försäkringsrättsliga skyddet för ingrediens- och komponentskador utreds, samt betydelsen för försäkringsskyddet huruvida den inträffade skadan är en skadeståndsrättslig sakskada eller en skada som ryms inom säljarens köprättsliga felansvar undersöks.

    Uppsatsen innehåller därutöver ett empiriskt avsnitt, vars avsikt är att klarlägga hur de svenska ledande försäkringsbolagens relevanta försäkringsvillkor är utformade samt vilken syn försäkringsbolagen har på begreppet sakskada och funktionsskadeprincipen.

  • 527.
    Adamsson, Gustav
    Linköping University, Department of Electrical Engineering, Information Coding. Linköping University, Faculty of Science & Engineering.
    Fast and Approximate Text Rendering Using Distance Fields2015Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Distance field text rendering has many advantages compared to most other text renderingsolutions. Two of the advantages are the possibility  to scale the glyphs without losing the crisp edge and less memory consumption. A drawback with distance field text renderingcan be high distance field generation time. The solution for fast distance field text renderingin this thesis generates the distance fields by drawing distance gradients locally over the outlines of the glyphs. This method is much faster than the old exact methods for generating distance fields that often includes multiple passes over the whole image.

    Using the solution for text rendering proposed in this thesis results in good looking text that is generated on the fly. The distance fields are generated on a mobile device in less than 10 ms for most of the glyphs in good quality which is less than the time between two frames.

  • 528. Adan, Antonio
    et al.
    Alpaydin, Ethem
    Andreadis, I.
    Baldock, Richard
    Basu, Anup
    Bayro-Corrochano, Eduardo
    Berberidis, Kostas
    Bergevin, Robert
    Bhanu, Bir
    Biehl, Michael
    Pattern Recognition Referees 20092010In: Pattern Recognition, ISSN 0031-3203, E-ISSN 1873-5142, Vol. 43, no 1, p. 1-4Article in journal (Refereed)
  • 529.
    Adborn, Elin
    Linköping University, Department of Behavioural Sciences and Learning. Linköping University, Faculty of Educational Sciences.
    Lärares yrkesetik.: En litteraturstudie.2012Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Syftet med denna uppsats är att undersöka hur läraretik definieras, motiveras och förvärvas enligt yrkesetisk litteratur för lärare och lärarstudenter. Förhoppningen är att undersökningen ska bidra till att ge kunskap om den etiska dimensionen i lärares arbete och om den kompetens lärare behöver för att kunna hantera etiska konflikter i skolans vardag.

    Uppsatsen är en kvalitativ textanalys av tre böcker om yrkesetik som används på lärarprogrammen i Sverige. Böckerna är:

    • Läraren i etikens motljus av Trygve Bergem, professor i pedagogik.

    • Lärares yrkesetik av Roger Fjellström, docent i praktisk filosofi.

    • Den värdefulla praktiken av Kennert Orlenius, fil.dr. i pedagogik och Airi Bigsten, förskollärare och

      doktorand i pedagogik.

      Böckerna analyseras utifrån följande frågor:

    • Varför finns det yrkesetik för lärare?

    • Vad innefattar lärares yrkesetik?

    • För vem är yrkesetiken bra?

    • Hur förvärvas/utvecklas yrkesetiken?

      Undersökningen visar att:

      • Skolan består av en etisk/moralisk dimension inför vilken läraren behöver god

        handlingsberedskap.

      • Introduktionen av yrkesetik bör ske under lärarutbildningen, vilket ökar möjligheten för läraren att

        tidigt utveckla sin etiska kompetens.

      • Yrkesetiken är viktig för att yrket skall ses som en profession. 

  • 530.
    Addelyan Rasi, Hamideh
    Linköping University, Department of Medical and Health Sciences. Linköping University, Faculty of Health Sciences.
    Empowering Women in the Middle East by Psychosocial Interventions: Can provision of learning spaces in individual and group sessions and teaching of coping strategies improve women’s quality of life?2013Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    Background: This study set out to construct a conceptual framework that can be used in social work with women in the Middle East and other settings where women have limited access to resources, which, as a result, limits their decision-making capacity. The framework has both an empirical and a theoretical base. The empirical base comprises data from two intervention projects among Iranian women: single mothers and newly married women. The theoretical base is drawn from relevant psychological and social work theories and is harmonized with the empirical data. Psychosocial intervention projects, based on learning spaces for coping strategies, were organized to assess if Iranian women could use a problemsolving model (i.e. focused on cognition and emotion simultaneously) to effectively and independently meet challenges in their own lives and improve their quality of life.

    Methods: Descriptive qualitative and quasi-experimental quantitative methods were used for data collection and analysis. Forty-four single mothers and newly married women from social welfare services were allocated to nonrandomized intervention and comparison groups. The intervention groups were invited to participate in a 7-month psychosocial intervention; the comparison groups were provided with treatment as usual by the social welfare services. The WHOQOL-BREF instrument was used to measure quality of life, comparing each intervention groups’ scores before and after the intervention and with respective comparison groups. In addition, content analysis and constant comparative analysis were performed on the qualitative data collected from the participants before, during and after the intervention.

    Results: The results of the quasi-experimental study show significant and large effect sizes among the women exposed to the intervention. Small and not statistically significant effect sizes were observed in the women provided with traditional social welfare services. Accordingly, teaching coping strategies can be a means to improve the quality of life of women in societies where gender discrimination is prevalent. The qualitative findings from the Iranian projects illustrate a process of change —socio-cognitive empowerment— with regard to thinking, feeling and acting among women during and after the intervention. The women developed a number of mental capacities essential to coping and life management. All women used the model effectively, and consequently, made more deliberate decisions to improve their life situations.

    Conclusion: The practical lessons from the Iranian projects highlight the possibilities of empowering women through fostering mindfulness and deliberate decision making as well as achieving consciousness. This study provides provisional evidence that psychosocial intervention projects, based on learning spaces for coping strategies, can help many clients to achieve their goals and improve their quality of life, and that this psychosocial intervention project can be a useful model for social work practice with women in the Middle East. The conceptual framework can help social workers to bridge the gap between theory and practice: that is, to draw from existing social work theories and, through the psychosocial intervention model, better apply this knowledge in their practical work with women in challenging social environments.

    List of papers
    1. Empowering Single Mothers in Iran: Applying a Problem-Solving Model in Learning Groups to Develop Participants’ Capacity to Improve Their Lives
    Open this publication in new window or tab >>Empowering Single Mothers in Iran: Applying a Problem-Solving Model in Learning Groups to Develop Participants’ Capacity to Improve Their Lives
    2013 (English)In: British Journal of Social Work, ISSN 0045-3102, E-ISSN 1468-263X, Vol. 43, no 5, p. 833-852Article in journal (Refereed) Published
    Abstract [en]

    Since 2000, a problem-solving model has been taught to the Society for Protecting the Rights of the Child, and teachers and students of social work in two universities in Iran. Since 2006, with the initiation of UNICEF, social workers, psychologists and even some psychiatrists in Iran have been learning this model. In 2008, a group of researchers created an empowerment-oriented psycho-social group and private intervention project to assess whether a group of Iranian single mothers could use this model, which was traditionally used by professionals only, to effectively and independently meet challenges in their own lives. Our results show that all women used the model effectively and, consequently, made more deliberate decisions to improve their life situations. Some of the women succeeded in finding a job and many improved their family relationships. This study suggests that empowerment-oriented social work can help many clients to achieve their goals, and that this psycho-social intervention project can be a useful model for social work in Iran and many other societies.

    Place, publisher, year, edition, pages
    Oxford University Press, 2013
    Keywords
    Iranian single mothers, psycho-social intervention, empowerment, capacitydevelopment, the Rahyab problem-solving model
    National Category
    Medical and Health Sciences
    Identifiers
    urn:nbn:se:liu:diva-88189 (URN)10.1093/bjsw/bcs009 (DOI)000322671100002 ()
    Available from: 2013-01-31 Created: 2013-01-31 Last updated: 2017-12-06Bibliographically approved
    2. Empowering newly married women in Iran: A new method of social work intervention that uses a client-directed problem-solving model in both group and individual sessions
    Open this publication in new window or tab >>Empowering newly married women in Iran: A new method of social work intervention that uses a client-directed problem-solving model in both group and individual sessions
    2013 (English)In: Qualitative Social Work, ISSN 1473-3250, E-ISSN 1741-3117, Vol. 12, no 6, p. 765-781Article in journal (Refereed) Published
    Abstract [en]

    We set out to assess the processes by which a personal empowerment-oriented intervention based on learning spaces and the Rahyab problem-solving model can help newly married women in Iran to gain more control over their life situations. Learning to use the problem-solving model independently was an important component of this seven months’ educational program. A descriptive field study design based on qualitative methods was employed for data collection and analysis. The analysis of these processes showed how, through group and individual interventions, these women could influence their intimate relationships by altering their thoughts, their management of emotions, and their overt behavior. We invite more research on how empowerment-oriented interventions can be used to support newly married women as a part of family educational programs.

    Place, publisher, year, edition, pages
    Sage Publications, 2013
    Keywords
    Education, empowerment, Iran, problem-solving, Rahyab, women
    National Category
    Medical and Health Sciences
    Identifiers
    urn:nbn:se:liu:diva-88191 (URN)10.1177/1473325012458310 (DOI)000330308200005 ()
    Available from: 2013-01-31 Created: 2013-01-31 Last updated: 2017-12-06Bibliographically approved
    3. Towards a Conceptual Framework for the Socio-Cognitive Empowerment of Women in the Middle East Countries: empirical and theoretical foundations
    Open this publication in new window or tab >>Towards a Conceptual Framework for the Socio-Cognitive Empowerment of Women in the Middle East Countries: empirical and theoretical foundations
    2012 (English)Manuscript (preprint) (Other academic)
    Abstract [en]

    Summary: This study set out to construct a conceptual framework that can be used in social work with women in the Middle East and other settings where women are consistently limited in their access to resources and, as a result, their decision-making capacity. We employed a qualitative secondary analysis of data from two intervention projects among Iranian women (n=25). Each intervention spanned over seven months, included individual and group sessions, and involved learning an empowerment-oriented problem-solving model. A constant comparative analysis was used to build the conceptual framework.

    Findings: The practical lessons from the Iranian projects highlight a process of change with regard to thinking, feeling and acting among women during and after the intervention. As the women developed a number of mental capacities essential to coping and life management, we constructed a theoretical proposition, which offers an explanation of their socio-cognitive empowerment. We supplement the basis for these concepts that emerged in this proposition by integrating them with psychological and social work theories into a broader conceptual framework for social work practice.

    Applications: A conceptual framework has been developed to provide structural support for social work practice with women in the Middle East. This framework can help social workers to bridge the gap between theory and practice; that is, to draw from existing social work theory and, through our model, better apply this knowledge in their practical work with women in challenging social environments.

    Keywords
    Women, empowerment, socio-cognitive mindfulness, problem-solving, Iran, Middle East
    National Category
    Medical and Health Sciences
    Identifiers
    urn:nbn:se:liu:diva-88192 (URN)
    Available from: 2013-01-31 Created: 2013-01-31 Last updated: 2013-01-31Bibliographically approved
    4. Can a psychosocial intervention programme teaching coping strategies improve the quality of life of Iranian women? A non-randomised quasi-experimental study
    Open this publication in new window or tab >>Can a psychosocial intervention programme teaching coping strategies improve the quality of life of Iranian women? A non-randomised quasi-experimental study
    2013 (English)In: BMJ Open, ISSN 2044-6055, E-ISSN 2044-6055, Vol. 3, no 3, p. 2407-Article in journal (Refereed) Published
    Abstract [en]

    Objectives: To assess whether a psychosocial intervention teaching coping strategies to women can improve quality of life (QOL) in groups of Iranian women exposed to social pressures.

    Design: Quasi-experimental nonrandomized group design involving two categories of Iranian women, each category represented by nonequivalent intervention and comparison groups.

    Setting: A large urban area in Iran.

    Participants: 44 women; 25 single mothers and 19 newly married women.

    Interventions: Seventh-month psychosocial intervention aimed at providing coping strategies.

    Primary outcome measures: Effect sizes in four specific health-related domains and two overall perceptions of QOL and health measured by the WHOQOL-BREF instrument.

    Results: Large effect sizes were observed among the women exposed to the intervention in the WHOQOL-BREF subdomains measuring physical health (r=0.68; p<0.001), psychological health (r=0.72; p<0.001), social relationships (r=0.52; p<0.01), environmental health (r=0.55; p<0.01), and in the overall perception of QOL (r=0.72; p<0.001); the effect size regarding overall perception of health was between small and medium (r=0.20; not significant). Small and not statistically significant effect sizes were observed in the women provided with traditional social welfare services.

    Conclusions: Teaching coping strategies can improve the QOL of women in societies where gender discrimination is prevalent. The findings require reproduction in studies with a more rigorous design before the intervention model can be recommended for widespread distribution.

    Place, publisher, year, edition, pages
    BMJ Open, 2013
    National Category
    Medical and Health Sciences
    Identifiers
    urn:nbn:se:liu:diva-88193 (URN)10.1136/bmjopen-2012-002407 (DOI)000330560500053 ()
    Available from: 2013-04-05 Created: 2013-01-31 Last updated: 2017-12-06Bibliographically approved
  • 531.
    Addelyan Rasi, Hamideh
    et al.
    Linköping University, Department of Medical and Health Sciences, Social Medicine and Public Health Science. Linköping University, Faculty of Health Sciences.
    Moula, Alireza
    Department of Sociology & Social Work, Karlstad University, Sweden.
    Puddephatt, Antony J.
    Department of sociology, Lakehead University, Canada.
    Timpka, Toomas
    Linköping University, Department of Medical and Health Sciences, Social Medicine and Public Health Science. Linköping University, Faculty of Health Sciences.
    Empowering newly married women in Iran: A new method of social work intervention that uses a client-directed problem-solving model in both group and individual sessions2013In: Qualitative Social Work, ISSN 1473-3250, E-ISSN 1741-3117, Vol. 12, no 6, p. 765-781Article in journal (Refereed)
    Abstract [en]

    We set out to assess the processes by which a personal empowerment-oriented intervention based on learning spaces and the Rahyab problem-solving model can help newly married women in Iran to gain more control over their life situations. Learning to use the problem-solving model independently was an important component of this seven months’ educational program. A descriptive field study design based on qualitative methods was employed for data collection and analysis. The analysis of these processes showed how, through group and individual interventions, these women could influence their intimate relationships by altering their thoughts, their management of emotions, and their overt behavior. We invite more research on how empowerment-oriented interventions can be used to support newly married women as a part of family educational programs.

  • 532.
    Addelyan Rasi, Hamideh
    et al.
    Linköping University, Department of Medical and Health Sciences, Social Medicine and Public Health Science. Linköping University, Faculty of Health Sciences.
    Moula, Alireza
    Karlstad University, Sweden.
    Puddephatt, Antony J.
    Department of sociology, Lakehead University, Canada.
    Timpka, Toomas
    Linköping University, Department of Medical and Health Sciences, Social Medicine and Public Health Science. Linköping University, Faculty of Health Sciences.
    Empowering Single Mothers in Iran: Applying a Problem-Solving Model in Learning Groups to Develop Participants’ Capacity to Improve Their Lives2013In: British Journal of Social Work, ISSN 0045-3102, E-ISSN 1468-263X, Vol. 43, no 5, p. 833-852Article in journal (Refereed)
    Abstract [en]

    Since 2000, a problem-solving model has been taught to the Society for Protecting the Rights of the Child, and teachers and students of social work in two universities in Iran. Since 2006, with the initiation of UNICEF, social workers, psychologists and even some psychiatrists in Iran have been learning this model. In 2008, a group of researchers created an empowerment-oriented psycho-social group and private intervention project to assess whether a group of Iranian single mothers could use this model, which was traditionally used by professionals only, to effectively and independently meet challenges in their own lives. Our results show that all women used the model effectively and, consequently, made more deliberate decisions to improve their life situations. Some of the women succeeded in finding a job and many improved their family relationships. This study suggests that empowerment-oriented social work can help many clients to achieve their goals, and that this psycho-social intervention project can be a useful model for social work in Iran and many other societies.

  • 533.
    Addelyan Rasi, Hamideh
    et al.
    Linköping University, Department of Medical and Health Sciences. Linköping University, Faculty of Health Sciences.
    Moula, Alireza
    Department of Sociology & Social Work, Karlstad University, Sweden.
    Puddephatt, Antony J.
    Department of sociology, Lakehead University, Canada.
    Timpka, Toomas
    Linköping University, Department of Medical and Health Sciences, Division of Preventive and Social Medicine and Public Health Science. Linköping University, Faculty of Health Sciences.
    Towards a Conceptual Framework for the Socio-Cognitive Empowerment of Women in the Middle East Countries: empirical and theoretical foundations2012Manuscript (preprint) (Other academic)
    Abstract [en]

    Summary: This study set out to construct a conceptual framework that can be used in social work with women in the Middle East and other settings where women are consistently limited in their access to resources and, as a result, their decision-making capacity. We employed a qualitative secondary analysis of data from two intervention projects among Iranian women (n=25). Each intervention spanned over seven months, included individual and group sessions, and involved learning an empowerment-oriented problem-solving model. A constant comparative analysis was used to build the conceptual framework.

    Findings: The practical lessons from the Iranian projects highlight a process of change with regard to thinking, feeling and acting among women during and after the intervention. As the women developed a number of mental capacities essential to coping and life management, we constructed a theoretical proposition, which offers an explanation of their socio-cognitive empowerment. We supplement the basis for these concepts that emerged in this proposition by integrating them with psychological and social work theories into a broader conceptual framework for social work practice.

    Applications: A conceptual framework has been developed to provide structural support for social work practice with women in the Middle East. This framework can help social workers to bridge the gap between theory and practice; that is, to draw from existing social work theory and, through our model, better apply this knowledge in their practical work with women in challenging social environments.

  • 534.
    Addelyan Rasi, Hamideh
    et al.
    Linköping University, Department of Medical and Health Sciences, Social Medicine and Public Health Science. Linköping University, Faculty of Health Sciences.
    Timpka, Toomas
    Linköping University, Department of Medical and Health Sciences, Social Medicine and Public Health Science. Linköping University, Faculty of Health Sciences.
    Lindqvist, Kent
    Linköping University, Department of Medical and Health Sciences, Social Medicine and Public Health Science. Linköping University, Faculty of Health Sciences.
    Moula, Alireza
    Department of Sociology & Social Work, Karlstad University, Sweden.
    Can a psychosocial intervention programme teaching coping strategies improve the quality of life of Iranian women? A non-randomised quasi-experimental study2013In: BMJ Open, ISSN 2044-6055, E-ISSN 2044-6055, Vol. 3, no 3, p. 2407-Article in journal (Refereed)
    Abstract [en]

    Objectives: To assess whether a psychosocial intervention teaching coping strategies to women can improve quality of life (QOL) in groups of Iranian women exposed to social pressures.

    Design: Quasi-experimental nonrandomized group design involving two categories of Iranian women, each category represented by nonequivalent intervention and comparison groups.

    Setting: A large urban area in Iran.

    Participants: 44 women; 25 single mothers and 19 newly married women.

    Interventions: Seventh-month psychosocial intervention aimed at providing coping strategies.

    Primary outcome measures: Effect sizes in four specific health-related domains and two overall perceptions of QOL and health measured by the WHOQOL-BREF instrument.

    Results: Large effect sizes were observed among the women exposed to the intervention in the WHOQOL-BREF subdomains measuring physical health (r=0.68; p<0.001), psychological health (r=0.72; p<0.001), social relationships (r=0.52; p<0.01), environmental health (r=0.55; p<0.01), and in the overall perception of QOL (r=0.72; p<0.001); the effect size regarding overall perception of health was between small and medium (r=0.20; not significant). Small and not statistically significant effect sizes were observed in the women provided with traditional social welfare services.

    Conclusions: Teaching coping strategies can improve the QOL of women in societies where gender discrimination is prevalent. The findings require reproduction in studies with a more rigorous design before the intervention model can be recommended for widespread distribution.

  • 535.
    Adeback, Petra
    et al.
    Karolinska Institute, Sweden.
    Schulman, Abbe
    Karolinska Institute, Sweden.
    Nilsson, Doris
    Linköping University, Department of Behavioural Sciences and Learning, Psychology. Linköping University, Faculty of Arts and Sciences. Region Östergötland, Local Health Care Services in Central Östergötland, Department of Child and Adolescent Psychiatry in Linköping. Karolinska Institute, Sweden.
    Children exposed to a natural disaster: psychological consequences eight years after 2004 tsunami2018In: Nordic Journal of Psychiatry, ISSN 0803-9488, E-ISSN 1502-4725, Vol. 72, no 1, p. 75-81Article, review/survey (Refereed)
    Abstract [en]

    Background: There is a need for studies that follow up children and adolescents for many years post disaster since earlier studies have shown that exposure during natural disasters constitutes a risk factor for poor psychological health.Aims: The main aim was to examine whether there was an association between severity of exposures during a natural disaster experienced in childhood or adolescence and posttraumatic stress symptoms, psychological distress, self-rated health, diagnosis of depression, anxiety or worry, thoughts about or attempted suicide, physical symptoms or daily functioning eight years later in young adulthood. A second aim was to compare psychological distress and self-rated health of exposed young adults with a matched population-based sample.Method: Young adults, who experienced the 2004 tsunami as children between 10 and 15 years of age, responded to a questionnaire eight years post disaster. The results were compared to a matched population sample.Results: The results showed that the likelihood for negative psychological outcomes was higher for those who had been exposed to several types of exposures during this natural disaster.Conclusions: The negative psychological impact on children and adolescents can still be present eight years post-disaster and seems to have association with the type of exposure; loss, physical presence and subjective experience. It is important for clinicians, who meet young adults seeking help, to be conscious about the impact as long as eight years post disaster and to be aware of possible clinical implications associated with severity of exposures.

  • 536.
    Adebring, Carl Jonas
    et al.
    Linköping University, Department of Management and Engineering.
    Zachrisson, Fredrik
    Linköping University, Department of Management and Engineering.
    Leverantörsrelationer på Volvo Aero Corporation: En modell för val av lämplig strategi för leverantörshantering2007Independent thesis Basic level (professional degree), 20 points / 30 hpStudent thesis
    Abstract [en]

    Volvo Aero Corporation is one of the major subcontractors for the three big aero-engine manufacturers today, Rolls-Royce, General Electric and Pratt & Whitney. The company produces parts that are in over 80 % of commercial jet engines today. New engine programs where Volvo Aero tries to have a more active part in the design and development of the engine as well as consolidation among its suppliers has resulted in new challenges for the company. To fulfill these new demands there is an interest in improving the company’s relationships and collaboration with its suppliers to improve efficiency, costs and lead-times for these projects.

    To achieve this, Volvo Aero gave us the task to study and analyze theories on the subject of supplier relationships to determine if there was anything substantial that could be applied to the new situations that the company faces.

    We based our studies on a wide range of theories with the objective of finding parameters that were applicable to Volvo Aero as well as having a definite impact on the supplier relationship. A lot of the theory that we found was based on the automotive industry and lean production, and from this we tried to narrow the theories we studied down to their most basic parameters. The parameters we searched for were those that reflected the specifics that make up a relation between two companies, for example the power balance in the relationship or the amount of adaptation and investment in the relation.

    From there we built a model where we applied and adapted our parameters to the specifics of Volvo Aero. The model we created is used to deduce what kind of relationship is appropriate given the reality that our parameters should have captured should have captured the basis for a relationship.

    We then applied this model to analyze three specific cases as well as a general analysis of the supplier relations of the company. The cases were supplier relations that Volvo Aero wanted us to study more in depth and on these we applied the model as usual. With the general analysis we were forced to do a more abstract reasoning where we based our analysis on the parameters and theories that made up the model.

    What we found from this analysis was that the model was working the way we intended and that it was possible to apply these theories to this company with good results. We also think that this model, with possibly small adjustments, should be applicable to a wide range of corporate relations as well as to other companies.

  • 537.
    Adedokun, Adeyemi
    Linköping University, Department of Science and Technology, Communications and Transport Systems. Linköping University, The Institute of Technology.
    Application of Road Infrastructure Safety Assessment Methods at Intersections2016Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Traffic safety at intersections is a particularly difficult phenomenon to study, given the fact that accidents occur randomly in time and space thereby making short-term measurement, assessment and comparison difficult. The EU directive 2008/96/EC introduced road infrastructure safety management, which offers a five layer structure for developing safer road infrastructure has been used to develop tools for accident prediction and black spot management analysis which has been applied in this work to assess the safety level of intersections in Norrköping city in Sweden. Accident data history from STRADA (Swedish Traffic Accident Data Acquisition) and the network demand model for Norrköping city were used to model black spots and predict the expected number of accidents at intersections using PTV Visum Safety tool, after STRADA accident classification was restructured and the Swedish accident prediction model (APM) was configured and tested to work within the tool using the model from the Swedish road administration (SRA). The performance of the default (Swiss) and the Swedish APM was compared and identified locations with the high accident records, predicted accident counts and traffic volumes were audited using qualitative assessment checklist from Street-Audit tool. The results from these methods were analysed, validated and compared. This work provides recommendations on the used quantitative and qualitative methods to prevent accident occurrence at the identified locations.

  • 538. Adelbratt, Susan
    et al.
    Strang, Peter
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Biomedicine and Surgery, Palliative mediicin. Östergötlands Läns Landsting, ViN, LAH Linnea.
    Death anxiety in brain tumour patients and their spouses.2000In: Palliative Medicine: A Multiprofessional Journal, ISSN 0269-2163, E-ISSN 1477-030X, Vol. 14, p. 499-507Article in journal (Refereed)
  • 539.
    Adell, Gunnar
    Linköping University, Department of Biomedicine and Surgery, Oncology. Linköping University, Faculty of Health Sciences.
    Indicators of colorectal cancer prognosis and response to preoperative radiotherapy2000Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    Colorectal cancer is one of the three most common malignant diseases in Sweden, with about 5,000 new cases each year. Thirty-five percent of these are rectal cancer, for which local recurrence after surgery has been a serious problem. The five-year survival rate in colorectal cancer has improved from about 40% in 1960 to 55% in 1995. Adjuvant chemotherapy of colon cancer, preoperative radiotherapy and improved surgical techniques in rectal cancer have contributed to the improved  results. To select patients best suited for pre- or postoperative therapy, we need indicators of both prognosis and response to therapy.

    Using antibodies against cytokeratin, we found that 39% of patients with colorectal carcinoma that had penetrated the muscularis propria but without lymph-node metastases by routine light microscopy, had got micrometastases. Survival among patients with micrometastases was not significantly different from that among patients without such metastases.

    We also identified subsets of tumour-infiltrating mononuclear cells and studied their pattern of distribution in relation to regressive tumour areas and Dukes class. Our interpretation is that the subsets of tumourinfiltrating mononuclear cells change with advancing Dukes class, indicating gradual deterioration of the local immune control.

    We also investigated the interaction between p53, Ki-67, apoptosis and the outcome in rectal cancer with and without short-term preoperative radiotherapy. The expression of nuclear p53 protein seemed to be a significant predictive factor for local treatment failure after preoperative radiotherapy. Low tumour cell proliferation measured with Ki-67 in the preoperative biopsy correlated with improved local control and disease-free survival after preoperative radiotherapy.

    High apoptotic index was associated with improved local control of rectal cancer even without pre-operative radiotherapy, whereas local control of tumours with low and intermediate apoptotic index was significantly improved by preoperative radiotherapy.

    In conclusion, micrometastases in regional lymph nodes are an interesting phenomenon but with limited prognostic value. The subsets of tumour-infiltrating mononuclear cells change with advancing Dukes class, and its seems that the local immune control is gradually broken down. In rectal cancer, p53 expression, tumour proliferation measured with Ki-67 and apoptotic index seem to be interesting indicators of rectal cancer prognosis and response to preoperative radiotherapy.

    List of papers
    1. Occurrence and prognostic importance of micrometastases in regional lymph nodes in Dukes' B colorectal carcinoma: an immunohistochemical study
    Open this publication in new window or tab >>Occurrence and prognostic importance of micrometastases in regional lymph nodes in Dukes' B colorectal carcinoma: an immunohistochemical study
    Show others...
    1996 (English)In: European Journal of Surgery, ISSN 1102-4151, E-ISSN 1741-9271, Vol. 162, no 8, p. 637-642Article in journal (Refereed) Published
    Abstract [en]

    OBJECTIVE: To evaluate the incidence and prognostic importance of micrometastatic disease in regional lymph nodes from Dukes' B colorectal carcinomas.

    DESIGN: Retrospective study.

    SETTING: University hospital, Sweden.

    SUBJECTS: 100 patients operated on for primary colorectal carcinoma, classified as Dukes' B lesions.

    INTERVENTIONS: The regional lymph nodes were re-examined immunohistochemically using monoclonal antibodies against cytokeratin.

    OUTCOME MEASURES: Incidence and prognostic importance of micrometastases.

    RESULTS: Micrometastases were found in 39% (39/100) of the patients. The number of positive cells in the lymph nodes examined varied from 1 to over 100. They appeared as single cells or small clusters of cells located within the capsule or in the peripheral sinus of the lymph node. At least three sections from each of three lymph nodes had to be examined to identify 95% of the patients with lymph node micrometastases. The outcome of the patients with micrometastases was not significantly different from that of patients with no epithelial cells in the lymph nodes.

    CONCLUSION: Micrometastases in regional lymph nodes are a interesting phenomenon but clinically seem to be of only weak prognostic value.

    Keywords
    colorectal carcinoma, regional lymph node micrometastases, anti-cytokeratin antibodies
    National Category
    Medical and Health Sciences
    Identifiers
    urn:nbn:se:liu:diva-79591 (URN)8891622 (PubMedID)
    Available from: 2012-08-10 Created: 2012-08-10 Last updated: 2017-12-07Bibliographically approved
    2. Infiltration of mononuclear inflammatory cells into primary colorectal carcinomas: an immunohistological analysis
    Open this publication in new window or tab >>Infiltration of mononuclear inflammatory cells into primary colorectal carcinomas: an immunohistological analysis
    Show others...
    1997 (English)In: British Journal of Cancer, ISSN 0007-0920, E-ISSN 1532-1827, Vol. 75, no 3, p. 374-380Article in journal (Refereed) Published
    Abstract [en]

    Local immunoregulation mediated by mononuclear tumour-infiltrating cells is considered of importance for tumour progression of colorectal cancer, although the balance between immunosuppressor and cytotoxic activities is unclear. Colorectal cancers from 26 patients were investigated using a panel of monoclonal antibodies in order to identify subsets of mononuclear inflammatory cells and to study their pattern of distribution in relation to tumour stage and cytotoxic immune reactivity against the tumour. In all but five tumours, mononuclear cells, lymphocytes or monocytes were present in fairly large numbers, particularly in the stroma. The infiltration of CD4+ mononuclear cells predominated over the CD8+ subset. Infiltration near the tumour cells was found in four cancers only. Stromal infiltration of CD11c+ macrophages was found in all but eight tumours. Small regressive areas, in which the histological architecture of the tumours was broken down, were found in 17 tumours with intense or moderate infiltration by CD4+ lymphocytes or CD11c+ macrophages. Probably this destruction of tumour tissue was caused by cytotoxic activity of the tumour-infiltrating mononuclear cells. In Dukes' class A and B tumours, CD4+ lymphocytes predominated over CD4+ cells with macrophage morphology, but the latter were increasingly found in Dukes' class C and D disease. The occurrence of MHC II-positive macrophages and lymphocytes in different Dukes' classes was similar to that of CD4+ cells. In contrast to this, CD11c+ and CD11a+ cells were more frequent in Dukes' A and B class tumours compared with Dukes' C and D. Four out of nine tumours of the latter stages showed a poor inflammatory reaction. The interpretation of our results is that the subsets of tumour-infiltrating mononuclear cells change with advancing Dukes' class and that the local immune control is gradually broken down in progressive tumour growth, even if some cytotoxic activity is still present.

    National Category
    Medical and Health Sciences
    Identifiers
    urn:nbn:se:liu:diva-79592 (URN)9020482 (PubMedID)
    Available from: 2012-08-10 Created: 2012-08-10 Last updated: 2017-12-07Bibliographically approved
    3. p53 status: an indicator for the effect of preoperative radiotherapy of rectal cancer.
    Open this publication in new window or tab >>p53 status: an indicator for the effect of preoperative radiotherapy of rectal cancer.
    Show others...
    1999 (English)In: Radiotherapy and Oncology, ISSN 0167-8140, E-ISSN 1879-0887, Vol. 51, no 2, p. 169-174Article in journal (Refereed) Published
    Abstract [en]

    BACKGROUND: Rectal carcinoma is a common malignancy, with a history of high local recurrence rates following surgery. In recent years. preoperative radiotherapy and refined surgical technique have improved local control rates.

    AIM: To investigate the relationship between expression of nuclear p53 protein and the outcome in rectal carcinoma, with and without short-term preoperative radiotherapy.

    MATERIAL: Specimens from 163 patients from the Southeast Swedish Health Care region included in the Swedish rectal cancer trial between 1987-1990.

    METHOD: New sections from the paraffin blocks of the preoperative biopsy and the surgical specimen were examined immunohistochemically using a p53 antibody (PAb 1801).

    RESULT: Expression of nuclear p53 protein was seen in 41% of the tumours. The p53 negative patients treated with preoperative radiotherapy had a significant reduction of local failure compared with the non-irradiated p53 negative patients (P = 0.0008). In contrast, p53 positive patients showed no benefit from preoperative radiotherapy. The interaction between p53 status and the benefit of radiotherapy was statistically significant (P = 0.018).

    CONCLUSION: Expression of nuclear p53 protein in rectal carcinoma seems to be a significant predictive factor for local treatment failure after preoperative radiotherapy. Further investigations are necessary to select patients for preoperative treatment based on analysis of the preoperative biopsies.

    National Category
    Medical and Health Sciences
    Identifiers
    urn:nbn:se:liu:diva-24826 (URN)10.1016/S0167-8140(99)00041-9 (DOI)10435809 (PubMedID)9223 (Local ID)9223 (Archive number)9223 (OAI)
    Available from: 2009-10-07 Created: 2009-10-07 Last updated: 2017-12-13Bibliographically approved
    4. Decreased tumor cell proliferation as an indicator of the effect of preoperative radiotherapy of rectal cancer
    Open this publication in new window or tab >>Decreased tumor cell proliferation as an indicator of the effect of preoperative radiotherapy of rectal cancer
    Show others...
    2001 (English)In: International Journal of Radiation Oncology, Biology, Physics, ISSN 0360-3016, E-ISSN 1879-355X, Vol. 50, no 3, p. 659-663Article in journal (Refereed) Published
    Abstract [en]

    BACKGROUND: Rectal cancer is a common malignancy, with significant local recurrence and death rates. Preoperative radiotherapy and refined surgical technique can improve local control rates and disease-free survival.

    PURPOSE: To investigate the relationship between the tumor growth fraction in rectal cancer measured with Ki-67 and the outcome, with and without short-term preoperative radiotherapy.Method: Ki-67 (MIB-1) immunohistochemistry was used to measure tumor cell proliferation in the preoperative biopsy and the surgical specimen.

    MATERIALS: Specimens from 152 patients from the Southeast Swedish Health Care region were included in the Swedish rectal cancer trial 1987-1990.

    RESULTS: Tumors with low proliferation treated with preoperative radiotherapy had a significantly reduced recurrence rate. The influence on death from rectal cancer was shown only in the univariate analysis. Preoperative radiotherapy of tumors with high proliferation did not significantly improve local control and disease-free survival. The interaction between Ki-67 status and the benefit of radiotherapy was significant for the reduced recurrence rate (p = 0.03), with a trend toward improved disease-free survival (p = 0.08). In the surgery-alone group, Ki-67 staining did not significantly correlate with local recurrence or survival rates.

    CONCLUSION: Many Ki-67 stained tumor cells in the preoperative biopsy predicts an increased treatment failure rate after preoperative radiotherapy of rectal cancer.

    National Category
    Medical and Health Sciences
    Identifiers
    urn:nbn:se:liu:diva-24827 (URN)10.1016/S0360-3016(01)01515-2 (DOI)11395233 (PubMedID)9224 (Local ID)9224 (Archive number)9224 (OAI)
    Available from: 2009-10-07 Created: 2009-10-07 Last updated: 2017-12-13Bibliographically approved
    5. Apoptosis in rectal carcinoma: Prognosis and recurrence after preoperative radiotherapy
    Open this publication in new window or tab >>Apoptosis in rectal carcinoma: Prognosis and recurrence after preoperative radiotherapy
    Show others...
    2001 (English)In: Cancer, ISSN 0008-543X, E-ISSN 1097-0142, Vol. 91, no 10, p. 1870-1875Article in journal (Refereed) Published
    Abstract [en]

    BACKGROUND: Rectal carcinoma is common, with considerable local recurrence and death rates. Preoperative radiotherapy and refined surgical techniques can improve local control. The aim of this study was to investigate the interaction between apoptosis and the outcome of rectal carcinoma, with and without short-term preoperative radiotherapy.

    METHODS: Specimens were from 162 patients from the Southeast Swedish Health Care region included in the Swedish Rectal Cancer Trial between 1987-1990. New sections from the paraffin blocks of the preoperative biopsies and the surgical specimens were examined for apoptosis using the terminal deoxynucleotidyl transferase mediated digoxigenin nick end labeling (TUNEL) method.

    RESULTS: The mean percentage of apoptotic cells was 0.3% (0-4%) and 1.1% (0-14.5%) for the preoperative biopsy and the surgical specimen, respectively. The authors analyzed the surgical specimens from nonirradiated patients and divided them into three groups by apoptotic index (AI) as follows: 0%, 0-1%, and > 1%. A high AI was associated with a decreased local recurrence rate compared with an intermediate or a low AI (P = 0.024). There was no significant relation between AI and survival. There was a significant reduction in the local recurrence rate for irradiated patients compared with the nonirradiated in the low (P = 0.015) and intermediate (P = 0.038) AI groups. In the high AI group, there were few recurrences and no significant difference was observed between irradiated and nonirradiated patients. The relative risk of death from rectal carcinoma in Dukes A-C patients was not significantly decreased by radiotherapy, but, in the intermediate AI group, there was a trend (P = 0.08) in favor of the irradiated patients.

    CONCLUSION: A high AI in rectal carcinoma indicated a decreased local recurrence rate.

    Keywords
    apoptosis, rectal carcinoma, radiotherapy, local failure, disease-free survival
    National Category
    Medical and Health Sciences
    Identifiers
    urn:nbn:se:liu:diva-24825 (URN)10.1002/1097-0142(20010515)91:10<1870::AID-CNCR1208>3.0.CO;2-1 (DOI)9222 (Local ID)9222 (Archive number)9222 (OAI)
    Available from: 2009-10-07 Created: 2009-10-07 Last updated: 2017-12-13Bibliographically approved
  • 540.
    Adell, Gunnar
    et al.
    Linköping University, Department of Biomedicine and Surgery, Oncology. Linköping University, Faculty of Health Sciences.
    Boeryd, B.
    Linköping University, Department of Neuroscience and Locomotion, Pathology. Linköping University, Faculty of Health Sciences.
    Frånlund, B.
    Linköping University, Department of Neuroscience and Locomotion, Pathology. Linköping University, Faculty of Health Sciences.
    Sjödahl, Rune
    Linköping University, Department of Clinical and Experimental Medicine, Surgery. Linköping University, Faculty of Health Sciences.
    Håkansson, L.
    Linköping University, Department of Biomedicine and Surgery, Oncology. Linköping University, Faculty of Health Sciences.
    Occurrence and prognostic importance of micrometastases in regional lymph nodes in Dukes' B colorectal carcinoma: an immunohistochemical study1996In: European Journal of Surgery, ISSN 1102-4151, E-ISSN 1741-9271, Vol. 162, no 8, p. 637-642Article in journal (Refereed)
    Abstract [en]

    OBJECTIVE: To evaluate the incidence and prognostic importance of micrometastatic disease in regional lymph nodes from Dukes' B colorectal carcinomas.

    DESIGN: Retrospective study.

    SETTING: University hospital, Sweden.

    SUBJECTS: 100 patients operated on for primary colorectal carcinoma, classified as Dukes' B lesions.

    INTERVENTIONS: The regional lymph nodes were re-examined immunohistochemically using monoclonal antibodies against cytokeratin.

    OUTCOME MEASURES: Incidence and prognostic importance of micrometastases.

    RESULTS: Micrometastases were found in 39% (39/100) of the patients. The number of positive cells in the lymph nodes examined varied from 1 to over 100. They appeared as single cells or small clusters of cells located within the capsule or in the peripheral sinus of the lymph node. At least three sections from each of three lymph nodes had to be examined to identify 95% of the patients with lymph node micrometastases. The outcome of the patients with micrometastases was not significantly different from that of patients with no epithelial cells in the lymph nodes.

    CONCLUSION: Micrometastases in regional lymph nodes are a interesting phenomenon but clinically seem to be of only weak prognostic value.

  • 541.
    Adell, Gunnar C. E.
    et al.
    Linköping University, Department of Biomedicine and Surgery, Oncology. Linköping University, Faculty of Health Sciences.
    Zhang, Hong
    Linköping University, Department of Biomedicine and Surgery, Cell biology. Linköping University, Faculty of Health Sciences.
    Evertsson, Sofia
    Linköping University, Department of Biomedicine and Surgery, Oncology. Linköping University, Faculty of Health Sciences.
    Sun, Xiao-Feng
    Linköping University, Department of Biomedicine and Surgery, Oncology. Linköping University, Faculty of Health Sciences.
    Stål, Olle
    Linköping University, Department of Biomedicine and Surgery, Oncology. Linköping University, Faculty of Health Sciences.
    Nordenskjöld, Bo
    Linköping University, Department of Biomedicine and Surgery, Oncology. Linköping University, Faculty of Health Sciences.
    Apoptosis in rectal carcinoma: Prognosis and recurrence after preoperative radiotherapy2001In: Cancer, ISSN 0008-543X, E-ISSN 1097-0142, Vol. 91, no 10, p. 1870-1875Article in journal (Refereed)
    Abstract [en]

    BACKGROUND: Rectal carcinoma is common, with considerable local recurrence and death rates. Preoperative radiotherapy and refined surgical techniques can improve local control. The aim of this study was to investigate the interaction between apoptosis and the outcome of rectal carcinoma, with and without short-term preoperative radiotherapy.

    METHODS: Specimens were from 162 patients from the Southeast Swedish Health Care region included in the Swedish Rectal Cancer Trial between 1987-1990. New sections from the paraffin blocks of the preoperative biopsies and the surgical specimens were examined for apoptosis using the terminal deoxynucleotidyl transferase mediated digoxigenin nick end labeling (TUNEL) method.

    RESULTS: The mean percentage of apoptotic cells was 0.3% (0-4%) and 1.1% (0-14.5%) for the preoperative biopsy and the surgical specimen, respectively. The authors analyzed the surgical specimens from nonirradiated patients and divided them into three groups by apoptotic index (AI) as follows: 0%, 0-1%, and > 1%. A high AI was associated with a decreased local recurrence rate compared with an intermediate or a low AI (P = 0.024). There was no significant relation between AI and survival. There was a significant reduction in the local recurrence rate for irradiated patients compared with the nonirradiated in the low (P = 0.015) and intermediate (P = 0.038) AI groups. In the high AI group, there were few recurrences and no significant difference was observed between irradiated and nonirradiated patients. The relative risk of death from rectal carcinoma in Dukes A-C patients was not significantly decreased by radiotherapy, but, in the intermediate AI group, there was a trend (P = 0.08) in favor of the irradiated patients.

    CONCLUSION: A high AI in rectal carcinoma indicated a decreased local recurrence rate.

  • 542.
    Adell, Gunnar
    et al.
    Linköping University, Department of Biomedicine and Surgery, Oncology. Linköping University, Faculty of Health Sciences.
    Sun, Xiao-Feng
    Linköping University, Department of Biomedicine and Surgery, Oncology. Linköping University, Faculty of Health Sciences.
    Stål, Olle
    Linköping University, Department of Biomedicine and Surgery, Oncology. Linköping University, Faculty of Health Sciences.
    Klintenberg, Claes
    Linköping University, Department of Biomedicine and Surgery, Oncology. Linköping University, Faculty of Health Sciences.
    Sjödahl, Rune
    Linköping University, Department of Biomedicine and Surgery, Surgery. Linköping University, Faculty of Health Sciences.
    Nordenskjöld, Bo
    Linköping University, Department of Biomedicine and Surgery, Oncology. Linköping University, Faculty of Health Sciences.
    p53 status: an indicator for the effect of preoperative radiotherapy of rectal cancer.1999In: Radiotherapy and Oncology, ISSN 0167-8140, E-ISSN 1879-0887, Vol. 51, no 2, p. 169-174Article in journal (Refereed)
    Abstract [en]

    BACKGROUND: Rectal carcinoma is a common malignancy, with a history of high local recurrence rates following surgery. In recent years. preoperative radiotherapy and refined surgical technique have improved local control rates.

    AIM: To investigate the relationship between expression of nuclear p53 protein and the outcome in rectal carcinoma, with and without short-term preoperative radiotherapy.

    MATERIAL: Specimens from 163 patients from the Southeast Swedish Health Care region included in the Swedish rectal cancer trial between 1987-1990.

    METHOD: New sections from the paraffin blocks of the preoperative biopsy and the surgical specimen were examined immunohistochemically using a p53 antibody (PAb 1801).

    RESULT: Expression of nuclear p53 protein was seen in 41% of the tumours. The p53 negative patients treated with preoperative radiotherapy had a significant reduction of local failure compared with the non-irradiated p53 negative patients (P = 0.0008). In contrast, p53 positive patients showed no benefit from preoperative radiotherapy. The interaction between p53 status and the benefit of radiotherapy was statistically significant (P = 0.018).

    CONCLUSION: Expression of nuclear p53 protein in rectal carcinoma seems to be a significant predictive factor for local treatment failure after preoperative radiotherapy. Further investigations are necessary to select patients for preoperative treatment based on analysis of the preoperative biopsies.

  • 543.
    Adell, Gunnar
    et al.
    Linköping University, Department of Biomedicine and Surgery, Oncology. Linköping University, Faculty of Health Sciences.
    Zhang, Hong
    Linköping University, Department of Biomedicine and Surgery, Cell biology. Linköping University, Faculty of Health Sciences.
    Jansson, Agneta
    Linköping University, Department of Biomedicine and Surgery, Oncology. Linköping University, Faculty of Health Sciences.
    Sun, Xiao-Feng
    Linköping University, Department of Biomedicine and Surgery, Oncology. Linköping University, Faculty of Health Sciences.
    Stål, Olle
    Linköping University, Department of Biomedicine and Surgery, Oncology. Linköping University, Faculty of Health Sciences.
    Nordenskjöld, Bo
    Linköping University, Department of Biomedicine and Surgery, Oncology. Linköping University, Faculty of Health Sciences.
    Decreased tumor cell proliferation as an indicator of the effect of preoperative radiotherapy of rectal cancer2001In: International Journal of Radiation Oncology, Biology, Physics, ISSN 0360-3016, E-ISSN 1879-355X, Vol. 50, no 3, p. 659-663Article in journal (Refereed)
    Abstract [en]

    BACKGROUND: Rectal cancer is a common malignancy, with significant local recurrence and death rates. Preoperative radiotherapy and refined surgical technique can improve local control rates and disease-free survival.

    PURPOSE: To investigate the relationship between the tumor growth fraction in rectal cancer measured with Ki-67 and the outcome, with and without short-term preoperative radiotherapy.Method: Ki-67 (MIB-1) immunohistochemistry was used to measure tumor cell proliferation in the preoperative biopsy and the surgical specimen.

    MATERIALS: Specimens from 152 patients from the Southeast Swedish Health Care region were included in the Swedish rectal cancer trial 1987-1990.

    RESULTS: Tumors with low proliferation treated with preoperative radiotherapy had a significantly reduced recurrence rate. The influence on death from rectal cancer was shown only in the univariate analysis. Preoperative radiotherapy of tumors with high proliferation did not significantly improve local control and disease-free survival. The interaction between Ki-67 status and the benefit of radiotherapy was significant for the reduced recurrence rate (p = 0.03), with a trend toward improved disease-free survival (p = 0.08). In the surgery-alone group, Ki-67 staining did not significantly correlate with local recurrence or survival rates.

    CONCLUSION: Many Ki-67 stained tumor cells in the preoperative biopsy predicts an increased treatment failure rate after preoperative radiotherapy of rectal cancer.

  • 544.
    Adelmann, Kent
    Lärarutbildningen, Malmö högskola.
    Sjunde nationella konferensen i Svenska med didaktisk inriktning, Malmö 18-20 november 2009: Att bygga broar –kulturella, språkliga och mediala möten2010Conference proceedings (editor) (Other academic)
    Abstract [sv]

    Den här konferensen pekar på en enastående utveckling och utvecklingspotential för SMDI. Svenska med didaktisk inriktning kan numera betraktas som ett etablerat forskningsområde och har ett nära samarbete med motsvarande systerorganisationer i Danmark (Netværk for forskning i dansk-fagenes didaktik, DaDi) och Norge (Nettverk for norskdidaktisk forskning, NNDF). Konferensen i Malmö samlade 174 deltagare från de nordiska länderna och innehöll fyra plenarföredrag samt 49 sektionsföredrag, vilket visar både styrka och bredd.

    De 15 bidrag som presenteras i den här forskningsrapporten omfattar de fyra plenarföreläsningarna (av Jens Elmelund Kjeldsen, Caroline Liberg, Kathleen McCormick och Jon Smidt) samt elva av sektionsföredragen. Texterna handlar om många olika slags möten. Det kan gälla kulturella möten i det heterogena klassrummet (McCormick) eller i de nordiska kursplanernas språk- och litteraturundervisning (Hägerfelth & Skarstein). Och det kan gälla språkliga möten med lyssningens ABC (Adelmann) eller med postmoderna läromedel mellan tradition och fönyelse (Dahl). Eller mediala möten med de mediekulturella förändringarnas konsekvenser för läsreceptionen (Elmfeldt & Persson). Men även krockar, mellan mediering via PowerPoint eller retorik (Kjeldsen).

    Här finns svenskämnets territoriella utbredning i mötet med den moderna ungdomsskolan (Martinsson). Och här finns de lärarstuderandes möte med skolverkligheten (Östlundh) och elevernas möte med nationella prov i årskurs 3 (Borgström & Yassin). Eller lärarens möte med olika  skrivutvecklingsperspektiv på yrkesinrikade gymnasieprogram (Westman), seriernas potential i svenskundervisningen (Mehrstam) eller olika didaktiska läsarter (Bringéus). Och här byggs det broar mellan modersmålsskrivande och skrivande i alla andra ämnen (Smidt), och mellan en språkbaserad ämnesundervisning och en ämnesbaserad språkundervisning (Liberg). Men det varnas också för faran med bro-metaforen, som kan konstruera kulturella olikheter istället för att konstruera mening som bygger på våra likheter (Penne).

  • 545.
    Adelsköld, Astrid
    Linköping University, Department of Science and Technology, Communications and Transport Systems. Linköping University, The Institute of Technology.
    Review of general demand responsive transport in Sörmland county2015Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Sörmlands län består till stor del av landsbygd där en kostnadseffektiv kollektivtrafik är svår att uppnå eftersom resandeunderlaget och därmed även efterfrågan normalt är låg. I dessa områden finns dock potential att uppnå en hållbar kollektivtrafik med hjälp av anropsstyrda trafikformer. I detta projekt utreddes dels en övergång av turer i landsbygdslinjetrafiken till allmän anropsstyrd trafik och dels en samordning av den allmänna och särskilda anropsstyrda kollektivtrafiken. En generell metod för val mellan fast linjetrafik och anropsstyrd linjelagd trafik utvecklades, vilken bestod av enkla tumregler för utvärdering av turer med regelbundet låg efterfrågan i landsbygdslinjetrafiken. Samordningen bestod av att utreda effekterna av att kompletteringsresor planerades och utfördes med samma fordon som den särskilda anropsstyrda kollektivtrafiken. Då kompletteringstrafiken får en högre kostnadseffektivitet genom samordning med den särskilda kollektivtrafiken kan denna användas som en flexibel ersättning där turutbudet i landsbygdslinjetrafiken behöver minska. En kostnadseffektivisering av landsbygdslinjetrafiken där turutbudet anpassas bättre till efterfrågan tillåter därmed en satsning av resurser till kompletteringstrafiken. Detta för att i enlighet med kollektivtrafikmyndighetens mål skapa en attraktiv kollektivtrafik för hållbar tillväxt och utveckling i Sörmlands län.

  • 546.
    Adelsvärd, Viveka
    Linköping University, Faculty of Arts and Sciences. Linköping University, The Tema Institute, Department of Communications Studies.
    Att lära barn berätta2004In: Saga och Sanning. Berättandets konst och berättelsens budskap, Uppsala: Uppsala universitet , 2004, p. 11-17Chapter in book (Other (popular science, discussion, etc.))
  • 547.
    Adelsvärd, Viveka
    Linköping University, Faculty of Arts and Sciences. Linköping University, The Tema Institute, Department of Communications Studies.
    Handen, huvudet, ögat.2005In: Det öppna rummet, Pieksämäki, Finland: Söderströms/Atlantis , 2005, p. 299-308Chapter in book (Other (popular science, discussion, etc.))
    Abstract [sv]

    Om språkets förhållande till kroppen

  • 548.
    Adelsvärd, Viveka
    Linköping University, Faculty of Arts and Sciences. Linköping University, The Tema Institute, Department of Communications Studies.
    Måltiden - inte bara mat utan också prat.2004In: Text i arbete: festskrift till Britt-Louise Gunnarsson den 12 januari 2005 = Text at work : essays in honour of Britt-Louise Gunnarsson 12 january 2005 / [ed] Ingegerd Bäcklund, Uppsala: Institutionen för nordiska språk , 2004, p. 19-27Chapter in book (Other academic)
    Abstract [en]

    En litteraturstudie av betydelsen av måltidssamtal.

  • 549.
    Adelsvärd, Viveka
    Linköping University, Faculty of Arts and Sciences. Linköping University, The Tema Institute, Department of Communications Studies.
    Nordenstam, Kerstin: Skvaller (1998)2000In: Språk & Stil, ISSN 1101-1165, Vol. 9, p. 195-199Article in journal (Other academic)
  • 550.
    Adelsvärd, Viveka
    Linköping University, Department of Thematic Studies, Department of Communications Studies. Linköping University, Faculty of Arts and Sciences.
    Varför ger vi röst åt de frånvarande?2003In: Grammatik och samtal: studier till minne av Mats Eriksson / [ed] Bengt Nordberg; Mats Eriksson;, Uppsala: Institutionen för nordiska språk, Uppsala universitet , 2003, p. 125-134Chapter in book (Other academic)
    Abstract [sv]

    Analys av vilka funktioner som virtuella deltagare har i samtal.

891011121314 501 - 550 of 101024
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