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  • 1.
    Zaharans, Eriks
    Linköping University, Department of Computer and Information Science. Linköping University, The Institute of Technology.
    Indoor robot localization and collaboration2013Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    The purpose of this thesis is to create an indoor rescue scenario with multiple self-localizing robots that are able to collaborate for a victim search. Victims are represented by RFID tags and detecting them combined with an accurate enough location data is considered as a successful finding. This setup is created for use in a laboratory assignment at Linköping University.

    We consider the indoor localization problem by trying to use as few sensors as possible and implement three indoor localization methods - odometry based, passive RFID based, and our approach by fusing both sensor data with particle filter.The Results show that particle filter based localization performs the best in comparison to the two other implemented methods and satisfies the accuracy requirements stated for the scenario.

    The victim search problem is solved by an ant mobility (pheromone-based) approach which integrates our localization method and provides a collaborative navigation through the rescue area. The purpose of the pheromone mobility approach is to achieve a high coverage with an acceptable resource consumption.Experiments show that area is covered with approximately 30-40% overhead in traveled distance comparing to an optimal path.

  • 2.
    Hanson, Calle
    Linköping University, Department of Science and Technology. Linköping University, The Institute of Technology.
    Adaptive level-of-detail representations for real-time simulation of natural environments2005Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    This thesis is written to explore the possibility of generating planet shaped virtual worlds. Today’s computer games present more and more complex worlds but have yet to show us a complete spherical world in large scale. The thesis goes in to describing a data structure sufficient for the task as well as describing how to use the structure.

    We evaluate previously done work for planar worlds and use this as a base when defining our new structure. Since a lot of work has been done in this area for planar worlds there exist several well defined concepts that can either be used as is or with a few minor changes. But certain parts needs to be replaced by new concepts since what we want to describe differs much from traditional virtual worlds. The result is a structure that enables a user to interact in real-time with a planet shaped terrain surface.

  • 3.
    Malmström, Therese
    et al.
    Linköping University, Department of Social and Welfare Studies, Health, Activity, Care. Linköping University, Faculty of Health Sciences.
    Svedjeholm, Sanna
    Linköping University, Department of Social and Welfare Studies, Health, Activity, Care. Linköping University, Faculty of Health Sciences.
    Heteronormativitet – en begreppsanalys: ”Alla är både offer och supportrar av systemet”2012Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The concept heteronormativity was used in the literature for the first time in 1993. This term can be found in dictionaries and encyclopedias from 2006 but only in a few of the most modern publications. The term currently lacks an exact definition. The aim of concept analysis is to identify characteristics for a term by studying its use. Healthcare relations can and should be developed into a caring relation, which is dependent on a connection involving body, mind and soul between the caregiver and the patient. The aim of this work was to describe and deepen the understanding of the term heteronormativity from a healthcare perspective. Rodgers’ evolutionary concept analysis of 23 scientific papers and common newspapers resulted in seven defined attributes: assumptions, norms, social hierarchies, sanctions for those deviating from the norm, gender roles, sexual relationships and stereotype family apprehension. The analysis also identified what precedes the concept, two women working with the concept and five related concepts: equality, gender, power, discrimination and homophobia. A number of consequences of which all were negative for both individuals and the society were found. Healthcare is negatively influenced in several ways by heteronormativity rendering the caring relation impossible. Conclusion: Heteronormativity leads to a number of problems and everyone are both victims and supporters of the system.

  • 4.
    Mattsson, David
    Linköping University, Department of Computer and Information Science. Linköping University, Faculty of Arts and Sciences.
    Driving and its related driving behaviour as viewed by Sensation Seeking and Locus of Control when regarding ADAS2012Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Driving is a high-risk adventure and a highly complex task; yet anyone with a driver's licence might perform daily. The driving task is characterised by requiring competence and control to cope with the continuous changing risky driving environment. Driving is a complex task, some think of it as strenuous whereas others think of it as quite effortless and fun.

    The task of driving is affected by the driver's driving behaviour, which in turn is affected by the driver's personality. Since the early 1950s, researchers have been interested in how driver's driving personality affects the driver's driving behaviour and thus driving performance. Attitudes such as risk perception and trust towards driving are only a few of a myriad of personality attitudes that could affect the driving performance. Two psychological traits can be used to quantify the driver's driving behaviour in form of propensity for risk taking and trust in driving: Sensation Seeking and Locus of Control. Both traits can be used as a small step to give an explanation as to why drivers do as they do in the driving environment.

    Traffic works as it works with a steady flow of things. Sometimes the flow is disturbed and traffic-related accidents occur. One type of accidents is rear-end collision, when the driver collides with the rear part of the car in front. In order to reduce the amount of such accidents, various forms of Advanced Driver Assistance Systems, ADAS, are introduced to aid drivers in their driving. There are many forms of ADAS, but they all share a common base in that they all aim to make the driver aware of the risks in her driving. The ADAS specific for rear-end collisions all aim to reduce the number of rear-end collisions that occurs annually in the traffic, which can be done by making the driver aware of the risks in her current driving performance.

  • 5.
    Brandhorst-Satzkorn, Johan
    Linköping University, Department of Mathematics, Mathematics and Applied Mathematics. Linköping University, The Institute of Technology.
    A Review of Freely Available Quantum Computer Simulation Software2012Independent thesis Basic level (degree of Bachelor), 10,5 credits / 16 HE creditsStudent thesis
    Abstract [en]

    A study has been made of a few different freely available Quantum Computer simulators.All the simulators tested are available online on their respective websites. A number oftests have been performed to compare the different simulators against each other. Someuntested simulators of various programming languages are included to show the diversityof the quantum computer simulator applications.

    The conclusion of the review is that LibQuantum is the best of the simulatorstested because of ease of coding, a great amount of pre-defined functionimplementations and decoherence simulation support among other reasons.

  • 6.
    Sahlberg, Jörgen
    Swedish Meteorological and Hydrological Institute.
    Physical modelling of the Akkajaure reservoir2003In: Hydrology and Earth System Sciences, ISSN 1027-5606, E-ISSN 1607-7938, Vol. 7, no 3, 268-282 p.Article in journal (Refereed)
    Abstract [en]

    This paper describes the seasonal temperature development in the Akkajaure reservoir, one of the largest Swedish reservoirs. It lies in the headwaters of the river Luleiilven in northern Sweden; it is 60 km long and 5 km wide with a maximum depth of 92 m. The maximum allowed variation in surface water level is 30 m. The temperature field in the reservoir is important for many biochemical processes. A one-dimensional lake model of the Akkajaure reservoir is developed from a lake model by Sahlberg (1983 and 1988). The dynamic eddy viscosity is calculated by a two equation turbulence model, a k-ε model and the hypolimnic eddy diffusivity formulation which is a function of the stability frequency (Hond o et al., 1993). A comparison between calculated and measured temperature profiles showed a maximum discrepancy of 0.5-1.0oC over the period 1999-2002. Except for a few days in summer, the water temperature is vertically homogeneous. Over that period of years, a weak stratification of temperature occurred on only one to two weeks a year on different dates in July and August. This will have biological consequences.

  • 7.
    Gustafsson, Robert
    Linköping University, Department of Physics, Chemistry and Biology, Molecular Biotechnology.
    Biophysical characterization of the *5 protein variant of human thiopurine methyltransferase by NMR spectroscopy2012Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Human thiopurine methyltransferase (TPMT) is an enzyme involved in the metabolism of thiopurine drugs, which are widely used in leukemia and inflammatory bowel diseases such as ulcerative colitis and Crohn´s disease. Due to genetic polymorphisms, approximately 30 protein variants are present in the population, some of which have significantly lowered activity. TPMT *5 (Leu49Ser) is one of the protein variants with almost no activity. The mutation is positioned in the hydrophobic core of the protein, close to the active site.

    Hydrogen exchange rates measured with NMR spectroscopy for N-terminally truncated constructs of TPMT *5 and TPMT *1 (wild type) show that local stability and hydrogen bonding patterns are changed by the mutation Leu49Ser. Most residues exhibit faster exchange rates and a lower local stability in TPMT *5 in comparison with TPMT *1. Changes occur close to the active site but also throughout the entire protein. Calculated overall stability is similar for the two constructs, so the measured changes are due to local stability.

    Protein dynamics measured with NMR relaxation experiments show that both TPMT *5 and TPMT *1 are monomeric in solution. Millisecond dynamics exist in TPMT *1 but not in TPMT *5, even though a few residues exhibit a faster dynamic. Dynamics on nanosecond to picosecond time scale have changed but no clear trends are observable.

  • 8.
    Mamattah, Raymond Selorm
    Linköping University, Department of Behavioural Sciences and Learning.
    Students’ Perceptions of E-Learning2016Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    The purpose of this thesis is to discover students’ opinions of e-learning, which is an alternative to traditional classroom teaching and learning.  The research was done because, with the advancement in technology there are tools provided to make e-learning possible, hence the need to know what students make of the idea of e-learning, as they are the target and the main beneficiaries of this technology enabled learning.  The research data was collected at Ho Polytechnic, Ghana, with 80 questionnaires.

    The results of the research show that majority of the students think e-learning is an innovative idea and must be encouraged, however, few concerns such as the fear of employers’ discrimination against those who study through e-learning were discovered.  It was also realised that hybrid learning, which is a combination of online learning and face-to-face learning, is the preferred mode of learning for the respondents.

    The researcher recommends that as students prefer hybrid learning, educational institutions in Ghana should make more effort to invest in tools that make e-learning possible, and not to be opening satellite campuses all over the country as is currently the case.

  • 9.
    Schenström, Karl
    Linköping University, Department of Physics, Chemistry and Biology, Molecular Physics.
    Biofunctionalization of a Fiber Optics-Based LSPR Sensor2016Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    When exposed to light, metal nanoparticles exhibit a phenomenon known as LSPR, Localized Surface Plasmon Resonance. The wavelengths at which LSPR occurs is very dependent on the refractive index of the surrounding medium. Binding of biomolecules to the surface of gold nanoparticles result in a change in the refractive index that can be detected spectrophotometrically by monitoring the LSPR peak shift. When functionalized with the corresponding ligand(s), gold nanoparticles can be utilized in biosensors to detect the presence and concentration of a predetermined analyte. However, the system must exhibit high specificity and give rise to a detectable shift for analytes in the desired concentration range to be of commercial interest. The aim of the diploma project was to investigate and optimize the biofunctionalization and performance of a fiber optics based LSPR biosensor.  Three ligand systems were investigated for detection of antibodies (IgG), insulin and avidin. Binding of the analyte to the ligand caused a shift of a few nanometers when using spherical gold nanoparticles. The shifts were significantly larger when using gold nanorods. When using the IgG and insulin ligands, only minor unspecific binding was observed. The setup thus shows great potential for use in a wide range of sensing applications.

  • 10.
    Bajracharya, Sudeep
    Linköping University, Department of Computer and Information Science.
    Enhanced OpenModelica Python Interface2016Independent thesis Advanced level (degree of Master (Two Years)), 30 credits / 45 HE creditsStudent thesis
    Abstract [en]

    OMPython is a Python library for OpenModelica, which provides a Python interface to OpenModelica. This thesis significantly improves OMPython by an enhanced, more powerful and easier to use API. It presents how a user can use the Python interface to simulate and access Modelica models using Python objects. The enhanced OMPython includes the list of functions that have been implemented such as getXXXNames(), getXXXValues(), setXXXValues(), getXXXOptions(), setXXXOptions(), and simulate(), etc. that allow users to interact with Modelica model properties(i.e., model variables) and the output of the OpenModelica compiler and simulator. A few Modelica models are used for demonstrations in order to make it easy for readers to understand. By the way, this thesis does not describe modeling Modelica models or compilation of such models.

  • 11.
    Blomgren, Niklas
    Linköping University, Department of Management and Engineering, Fluid and Mechatronic Systems.
    Decoupled Design of Auxiliary Systems for Internal Combustion Engines2016Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    This thesis investigated if decoupled design of the air intake and exhaust systems for four-stroke internal combustion engines is possible. Using the information found design guidelines were set up for the formula student team ELiTH Racing. The literature study revealed that the systems are not uncoupled, and the inuence of exhaust geometry on air intake behavior needed more thorough investigation. Experiments were designed, using a single cylinder engine with simple intake and exhaust geometries. The tests were attempted, but had to be abandoned due to time constraints. Successful tests would have yielded results in the form of pressure measurements, froma Prandtl-tube, in the air intake, and footage of smoke tests. As a secondary task the potential of computer simulations during the design process was investigated, which yielded a suggestion on how to set up a complete reasonable computational model of the systems. This also resulted in that the design guidelines included how to use computer simulations for the design process. Finally a few ways to expand this work are presented.

  • 12.
    Heredia, Cessi
    Linköping University, The Tema Institute, Department of Child Studies. Linköping University, Faculty of Arts and Sciences.
    Class Management, Teaching and Teacher-students Interactions in Crowded Classrooms: An observational analysis in an urban Catholic single gendered school2015Independent thesis Advanced level (degree of Master (Two Years)), 80 credits / 120 HE creditsStudent thesis
    Abstract [en]

    One of my concerns has been how children behave in a crowded classroom with few available opportunities to interact and rehearse the lesson with their peers and teacher. This research paper allows me to explore how teacher`s directives/ manners  (verbal & non-verbal communication) during the English lesson,  impact and fix children`s behaviours temporarily.  I have conducted this emprirical case study in a religious catholic, monolingual, Spanish school conformed only by girls aged 7-9, who are in the third level of its primary level.  As my interest was to analyze the talk of my purpose sampling (teacher-student) and the interactive behaviour in the natural occurring situation in this social setting, the method I chose was the analysis of social interaction, on Conversation Analysis. This allows me to unfold the talk-in-interaction and concentrate on micro-analytic situations using the standard convention to transcribe my selected analysis. Therefore, the contribution of this paper is to explore and demonstrate how disciplinary acts were deilvered by the teacher affecting the child`s subjectivity and performance in a crowded classroom.

  • 13.
    Norrgren, Lisa
    et al.
    Linköping University, Department of Management and Engineering, Economics. Linköping University, Faculty of Arts and Sciences.
    Swahnberg, Hanna
    Linköping University, Department of Management and Engineering, Economics. Linköping University, Faculty of Arts and Sciences.
    Analyzing Economic Development: What Can We Learn from Remittances Recipient Countries?2015Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    This paper investigates the relationship between economic growth, and remittances, financial development, and globalization after controlling for different levels of international financial distress. We study four of the major remittances recipient countries individually over the period of 1976 to 2012 using an autoregressive distributed lag method (ARDL). The results show that in Mexico, Bangladesh, and India remittances work as a stabilizing factor on their economies. Significant results of a positive long run correlation between remittances and GDP levels are also found in the results of Bangladesh and Mexico. High levels of financial distress have a negative impact on GDP in Mexico. We conclude that the level of financial integration between economies affect how financial distress in one economy spills over to another. This paper also finds that in the short run when globalization increases, uncompetitive businesses are outrivaled in Mexico and in Bangladesh, due to big neighbors like the United States or China and India. For Bangladesh, the financial development is destabilizing in the short run, and in the long run it correlates negatively with GDP. For India, this study finds that higher levels of both financial development and globalization promote long term economic growth. For China, few conclusions are drawn.

  • 14.
    Malesu, Maureen
    et al.
    Linköping University, Department of Management and Engineering, Business Administration. Linköping University, Faculty of Arts and Sciences.
    Chen, Xinyu
    Linköping University, Department of Management and Engineering, Business Administration. Linköping University, Faculty of Arts and Sciences.
    A Process Perspective of Corporate Rebranding in SMEs: A multiple case study of Restaurants and Bars in Osteragotland2015Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Background: In recent years, the subject of corporate rebranding has been receiving increasing attention as companies strive to develop new differentiated identities in the minds of their stakeholders. Several studies have been conducted on this subject, however, these studies have been biased towards large companies. Despite small and medium-sized enterprises (SMEs) being the most common type of businesses, most of the research on corporate rebranding has been focused on large corporations. Owing to the limited research studies on corporate rebranding in SMEs, this study seeks to shed more light on this subject by studying how the corporate rebranding process occurs in SMEs. By doing so, this study seeks to fill part of the research gap identified and contribute to the body of knowledge about corporate rebranding process in SMEs.

    Methodology: The empirical approach involves a multiple case study of four SME companies from the restaurant and bar sector. The data was collected through semi-structured interviews with key informants from each company, through observations and also the use of secondary sources.

    Results:The findings showed that the corporate rebranding process in SMEs involves few actors and is mostly owner- driven with the owner being at the centre of most of the activities and decision making. Furthermore, the findings show that the reasons for corporate rebranding in SMEs are change in ownership structure, bad reputation and change in market preferences. Based on the findings, we propose a corporate rebranding framework for SMEs that consists of the stages Assurance, Analysis, planning, Realisation and Evaluation.

  • 15.
    Liljeström, Stella
    et al.
    Linköping University, Department of Management and Engineering, Economics.
    Johansson, Sandra
    Linköping University, Department of Management and Engineering, Economics.
    Den Potentiella Risken med Riskkapital - En studie av riskkapitalbolagens intåg i djursjukvården och de potentiella effekterna detta får på djurförsäkringsmarknaden2015Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Until 2011 the Swedish market of animal medical treatment was dominated by a few veterinary hospitals and a large number of small and medium-sized owner-managed clinics. However, a lot has changed in the past years. In 2011 and 2012 mergers of clinics and hospitals took place and as a result of the mergers two large animal health companies were formed, today these two have a combined market share of over 60 percent. The two companies, AniCura and Evidensia, are currently owned and operated by the Swedish private equity firms EQT and Nordic Capital.

    The focus of this study is to investigate the possible effects of the changed conditions on the market of animal medical treatment on the pet insurances, both at a product and market level. In order to do so the three markets were analyzed with help of relevant theories.

    The conclusion we have drawn is that the premiums on the pet insurances increased after the entry of the private equity firms, but the reason behind this increase cannot be established. Thus, there are no signs that the development of the market will take a new direction, but a continuing homogenized range of pet insurances will occur. The effect will be unchanged market shares for the insurance companies. It is reasonable to assume that the pet insurance companies’ future development will be strongly linked to the development of the major animal health companies.

  • 16.
    Björkroth, Jennie
    Linköping University, Department of Physics, Chemistry and Biology, Biology. Linköping University, Faculty of Science & Engineering.
    Effekter av naturvårdsgallring på förekomsten av lunglav på ädellövträd2015Independent thesis Basic level (degree of Bachelor), 10,5 credits / 16 HE creditsStudent thesis
    Abstract [en]

    Sun-exposed broad leaved deciduous trees have a great species diversity of epiphytic lichens. In Europe, these trees have decreased dramatically in number as wooded pastures have become overgrown with trees and bushes, and broad leaved deciduous stands have been replaced by planted coniferous trees. These are the main reasons for many lichens depending on deciduous trees being red-listed. Epiphytic lichens in overgrown areas could benefit from conservation thinning, but few studies have been performed on how this type of cutting affects the lichens. In a previous study, the presence of red-listed epiphytic lichens in a broad leaved deciduous forest was examined. After the study, thinning of trees and bushes was made. Here we study the effects of this thinning on Lobaria pulmonaria. We tested possible factors that may affect the growth of L. pulmonaria, and if there were any differences in incidence and vitality of the lichen between managed and unmanaged stands. Since Dutch elm disease and ash dieback are well spread in the area, we wanted to see if they also affected the growth of L. pulmonaria. There were no differences in incidence and growth between managed and unmanaged stands. The results were unexpected since other studies show that, for instance, increased sun exposure often has a great effect on the growth of lichens. Many elms and ashes were dead or dying and had a significant negative effect on the change of number of lobes and the lobe surface. The diseases of the trees can thus be assumed to be the greatest cause of why the lichens in the managed stand did not benefit from thinning.

  • 17.
    Booson, Alexander
    et al.
    Linköping University, Department of Management and Engineering, Business Administration. Linköping University, Faculty of Arts and Sciences.
    Swahn, Lowe
    Linköping University, Department of Management and Engineering, Business Administration. Linköping University, Faculty of Arts and Sciences.
    Popularitet på aktiemarknaden: En undersökning av aktiers popularitets effekt på risk och avkastning2015Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Background: Over the past few decades it has been generally accepted that market premiums come with an associated level of risk. Even the most widely used pricing model today, CAPM, leans on this assumption. In an article written by Ibbotson and Idzorek (2014) this assumption is challenged as the main driver of market premiums and returns. The article contains evidence that relatively high returns have been earned through buying less  popular stocks on the U.S. stock market. Surprisingly the risk-return dimension exhibited an inverse relationship. This evidence from the U.S. stock market motivates us to investigate to what extent this effect can also be seen on the Swedish stock market.

    Aim: The aim of this thesis is to identify and analyze the effect of a stock`s popularity on the risk and return.

    Completion: In this quantitative study, share turnover and market capitalization have been used as approximations for popularity. The effects of stocks popularity on risk and return have been are examined by evaluating the performance of portfolios when categorizing the stocks by share turnover and market capitalization. The statistical relationship between popularity and return is analyzed using regression analysis. This study has both studied the effect of last year's popularity, as well as the effect of the popularity of the same year.

    Conclusion: When various approximations for the popularity dimension are studied and compared, this study shows no marked effect of stock`s popularity from the previous year on risk and return. The study finds no statistically significant relationship between the previous year ́s popularity and return. However, there is a positive statistically correlation between popularity and return when measured during the same year as when the popularity was measured. In addition, the results establish evidence for the stock turnover as a good measure of popularity.

  • 18.
    Vroegop, John
    Linköping University, Department of Culture and Communication, National Centre for Outdoor Education (NCU).
    Nature Connectedness & Winter Camping: A Combination of Quantitative and Qualitative Approaches2015Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    A growing body of research indicates that nature connectedness should be an important component of environmental education programs as emerging empirical evidence shows a correlation between connectedness to nature and environmentally responsible behaviour. Despite an increased interest in further examination of the human-nature relationship, research is lacking in terms of specific factors or conditions that influence nature connectedness. In this study, a mixed methods approach was employed to quantitatively assess the impact winter camping had on nature connectedness and then qualitatively determine specific components of the camp experience that influenced this sense of nature connectedness. Nineteen scouts participated on a three day winter camp at Manning Park in British Columba, Canada, where they experienced many challenges such as sleeping in quinzees (snow caves) and learned new skills such as snowshoeing. The Nature Relatedness Scale was used to assess nature connectedness in this study. A pre-test was administered a few days before the winter camp and the post-test two days afterwards. The results from the paired sample T-test show that there was a statistically significant improvement in nature connectedness following the winter camp experience. Eleven scouts were then selected to participate in semi-structured interviews with the aim of gaining insight to the specific conditions of winter camping that influenced nature connectedness. The results indicate that the location of the camp, the condition of being immersed in nature, interacting with wildlife, the positive experience of challenges, the presence of risk, and freedom from technology are all contributing factors that influenced a sense o f nature connectedness. An increased environmental awareness was also a prevalent theme which supports research suggesting that there is a positive relationship between nature connectedness and pro-environmental behaviour. It is recommended that programs with the aim of promoting nature connectedness or environmental awareness should include as many of these components as possible. Further research should alsobe conducted to confirm that these results apply also to other populations as these results cannot be generalized with a sample size of nineteen.

  • 19.
    Rennes, Evelina
    Linköping University, Department of Computer and Information Science.
    Improved Automatic Text Simplification by Manual Training2015Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    The purpose of this thesis was the further development of a rule set used in an automatic text simplification system, and the exploration of whether it is possible to improve the performance of a rule based text simplification system by manual training. A first rule set was developed from a thor- ough literature review, and the rule refinement was performed by manually adapting the first rule set to a set of training texts. When there was no more change added to the set of rules, the training was considered to be completed, and the two sets were applied to a test set, for evaluation. This thesis evaluated the performance of a text simplification system as a clas- sification task, by the use of objective metrics: precision and recall. The comparison of the rule sets revealed a clear improvement of the system, since precision increased from 45% to 82%, and recall increased from 37% to 53%. Both recall and precision was improved after training for the ma- jority of the rules, with a few exceptions. All rule types resulted in a higher score on correctness for R2. Automatic text simplification systems target- ing real life readers need to account for qualitative aspects, which has not been considered in this thesis. Future evaluation should, in addition to quantitative metrics such as precision, recall, and complexity metrics, also account for the experience of the reader.

  • 20.
    Zeitler, Jonas
    Linköping University, Department of Science and Technology, Media and Information Technology. Linköping University, The Institute of Technology.
    Adaptive rendering of celestial bodies in WebGL2015Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    This report covers theory and comparison of techniques for rendering massive scale 3D geospa- tial planet data in a web browser. It also presents implementation details of a few of these tech- niques in WebGL and Javascript, using the Three.js [1] 3D library. The thesis project is part of the implementation of Unitea, a web based education platform for interactive astronomy visualizations. Unitea is a derivative of Uniview, which is a fulldome interactive simulation of the universe. A major part of this thesis is dedicated to the implementa- tion of Hierarchical Level of Detail (HLOD) modules for Three.js based on the theory presented by T. Ulrich [2] and later generalized by Cozzi and Ring [3]. HLOD techniques are dynamic level of detail algorithms that represent the surface of objects as accurately as possible from a certain viewing angle. By using space partitioning tree-structures, view based error metrics and culling techniques detailed representations of the objects (in this case planets) can be efficiently rendered in real-time. The modules developed provide a general-purpose library for rendering planets (or other spher- ical objects) with dynamic level of detail in Three.js. The library also features connections to online web map services (WMS) and tile services.

  • 21.
    Larsson, David
    Linköping University, Department of Mathematics, Mathematics and Applied Mathematics. Linköping University, Faculty of Science & Engineering.
    Algorithmic Construction of Fundamental Polygons for Certain Fuchsian Groups2015Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    The work of mathematical giants, such as Lobachevsky, Gauss, Riemann, Klein and Poincaré, to name a few, lies at the foundation of the study of the highly structured Riemann surfaces, which allow definition of holomorphic maps, corresponding to analytic maps in the theory of complex analysis. A topological result of Poincaré states that every path-connected Riemann surface can be realised by a construction of identifying congruent points in the complex plane, the Riemann sphere or the hyperbolic plane; just three simply connected surfaces that cover the underlying Riemann surface. This requires the discontinuous action of a discrete subgroup of the automorphisms of the corresponding space. In the hyperbolic plane, which is the richest source for Riemann surfaces, these groups are called Fuchsian, and there are several ways to study the action of such groups geometrically by computing fundamental domains. What is accomplished in this thesis is a combination of the methods found by Reidemeister & Schreier, Singerman and Voight, and thus provides a unified way of finding Dirichlet domains for subgroups of cofinite groups with a given index. Several examples are considered in-depth.

  • 22.
    Asp, Filip
    et al.
    Linköping University, Department of Computer and Information Science. Linköping University, Faculty of Science & Engineering.
    Krispinsson, Tobias
    Linköping University, Department of Computer and Information Science. Linköping University, Faculty of Science & Engineering.
    Distributed certificates in ad hoc networks2015Independent thesis Basic level (degree of Bachelor), 10,5 credits / 16 HE creditsStudent thesis
    Abstract [en]

    In this report an ad hoc system is defined with the capabilities to validate the integrity ofevery node in the network without a third party, as long as every node has possession of acertificate. The system is developed to function in an ad hoc network with many externalthreats. The main target group would be the military and first responders. There are manydifferent problems with such a network, and many parts have been researched, but few fullsystems have been developed. This report defines a hierarchical system where nodes cancommunicate in an encrypted way, with the help of certificates. In a military situation therisk for compromised nodes must be considered. Therefore, the system can both detectand handle compromised nodes by revocation certificates. The proposed system is alsodetecting and handling partitions. The system has been put together by first making aliterature study to find existing solutions to different problems, then making a synthesisof those solutions. We also came up with new solutions where the three cornerstones ofsecurity: availability, confidentiality and integrity were in focus. To make the solutionmore trustworthy a risk analysis on the resulting system was made, which defined theweak points of the system.

  • 23.
    Chaulagai, Som
    Linköping University, The Tema Institute, Department of Child Studies. Linköping University, Faculty of Arts and Sciences.
    Understanding Childhood- Everyday Life and Welfare System, from the point of view of Childcare Workers in Finland.2015Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This study carried out in one children’s home in Finland. This study aims to understand how the caregivers collectively perceive their work to secure and construct the childhood of the children living in the children’s home. Furthermore, the study mainly includes caregiver’s perceptions and practices of upbringing of children in the children’s home, which have been thoroughly analysed in the study. The study follows carefully designed two qualitative research methods: focus group interview and text for data collection. The data comprise one focus group interview of seven child care workers that includes five discussion questions about children’s home, listening to the children, importance of rules, regulations and daily routines, children’s future and difficulties in the work. References have been given to the ‘text’, i.e. institution’s policy documents- rules and regulations and the Finnish Child Welfare Act for the analysis of the data. However, the study does not include the analysis of the ‘text’ itself. Moreover, thematic analysis is used for data analysis.

    The study highlights that understanding childhood comprise the process of trust building between children and care workers- allowing children’s voice, agency, independence and protection respecting the child rights, personal integrity with the provision of safe home, trustable adults and permanent routines and individual child care plan. In addition, the same body ‘caregiver’ who, at the same time, allows child autonomy, agency and independence, also regulates the children’s everyday life, controls children and creates limitation, bridge trust and protect them from developing deviancy and asocial behaviours. Such process gives special consideration to the children’s psychological as well as physical incompetency such as age, immaturity and the vulnerable past in the children’s home that partly creates dilemmas/conflicts in delivering full agency to the children as mentioned in the legal frame work. The study reveals that building trust takes place through interaction between children and care workers and is a long-term process that backs up bringing corrective experiences in children. Listening to the children means helping and teaching them to recognise own feelings, emotions and stand independent and strong for oneself in the future. Likewise, respect to the child rights and organising everyday life delivers protection and safety net to the children. The study reveals, despites various difficulties at work, such as changing welfare act, complicated bureaucracy, unlimited parental rights and surprising legal interference, the child workers have the professional as well as moral obligations to protect children and provide them a safe and intact growing environment. Finally, the study reveals that future of the children is based on the personal choices they make in future and only a few of them will have relatively better life than others. However, all of the children are always under potential risk of post-traumatic collapses.

     

    Keywords: childhood, child perspective, agency, children’s voice, building trust.

     

  • 24.
    Åstrom, Anne N.
    et al.
    Department of Clinical Dentistry, Faculty of Medicine and Dentistry, University of Bergen, Bergen, Norway.
    Ekback, Gunnar
    Department of Dentistry, Örebro County Council, Örebro, Sweden.
    Ordell, Sven
    Dental Commissioning Unit,Ostergotland County Council.
    Nasir, Elwalid
    Department of Clinical Dentistry, Faculty of Medicine and Dentistry, University of Bergen, Bergen, Norway.
    Long-term routine dental attendance: influence on tooth loss and oral health-related quality of life in Swedish older adults2014In: Community Dentistry and Oral Epidemiology, ISSN 0301-5661, E-ISSN 1600-0528, Vol. 42, no 5, 460-469 p.Article in journal (Refereed)
    Abstract [en]

    ObjectivesFew studies have investigated the effect of long-term routine dental attendance on oral health between middle-aged and older adults, using a prospective cohort design. This study aimed to assess routine dental attendance (attending dentist in the previous 12months for dental checkups) from age 50 to 65years. Moreover, this study examined whether long-term routine dental attendance contributes to oral health-related quality of life, OHRQoL, and major tooth loss independent of social factors and the type of treatment sector utilized. Whether oral health impacts of long-term routine attendance varied with type of treatment sector utilized was also investigated. MethodIn 1992, a census of the 1942 cohort in two counties of Sweden participated in a longitudinal questionnaire survey conducted at age 50 and again after 5, 10, and 15years. Information was collected on a wide range of health- and oral health-related aspects. Of the 6346 subjects who completed the 1992 survey, 4143 (65%) completed postal follow-ups in 1997, 2002, and 2007. ResultsRoutine dental attendance decreased from 69.1% at age 50-64.2% at age 65. Adjusted logistic regression analyses revealed that individuals reporting long-term routine attendance (routine attendance in both 1992 and 2007) were 0.3 (95% CI 0.2-0.5) times less likely than their counterparts who were nonroutine attenders to report oral impacts. According to generalized estimating equations (GEE), individuals who reported long-term routine attendance were 0.6 (95% CI 0.4-0.7) times less likely than nonroutine attenders to have major tooth loss across the survey years. The effect of long-term routine attendance on OHRQoL was stronger in public than in private dental healthcare attenders. ConclusionRoutine attendance decreased from age 50-65years. Long-term routine attendance had positive impact on major tooth loss and OHRQoL supporting the principle of encouraging annual dental attendance for preventive checkups among older people.

  • 25.
    Martin, Jason
    Linköping University, Department of Culture and Communication, Centre for Applied Ethics. Linköping University, Faculty of Arts and Sciences.
    On the morality of commercialized sex: -moral issues on commercial sex from contractarian and feminist ethics perspectives2015Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The purpose of this study is to evaluate and problematize the moral aspects of commercialized sex as presented within examples of contractarian and feminist moral positions. I describe, define and compare the arguments and moral reasoning in relation to these moral positions. There are distinctive differences as to the analysis of causes and effects and the morally based actions needed to address them. Both the contractarian and the feminist moral positions contain notions that the gender related problems of commercialized sex is a cultural and societal problem dependent on structure and attitudes. I also show that some arguments share similarities between the moral positions and that there may be a few particular similarities as to fundamental moral values shared between moral positions. Commercialized sex culture can be seen as both a causal and effectual problem depending on moral position. The causal problems of culture share mutual similarities in the notion that commercialized sex become a kind of cultural indicator reflecting general societal inequalities. I also address the notions on alleged limitations in legislation and the alleged need for broader measures in order to create sustained attitudinal change.

  • 26.
    Neffati, Hammadi
    Linköping University, Department of Clinical and Experimental Medicine. Linköping University, Faculty of Health Sciences.
    Översättning och anpassning av Kortfattad Afasiprövning till arabiska: Jämförelse med arabiska Bilingual Aphasia Test och självskattad språkförmåga2015Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    With the growing amount of citizens with another mother tongue than Swedish, the need for assessment instruments in other languages than Swedish within the Swedish health care increases. To enable this, the knowledge of multilingualism and adequate assessments are required. The aim is to develop a modern Arabic version of a screening material that is comparable to what is used in the Swedish clinic in the assessment of people diagnosed with aphasia. In the present study, Short Aphasia Examination (Kortfattad Afasiprövning), which is one of the few screening material is available in Swedish and among the ten most frequently used assessment materials (Blom Johansson, Carlsson & Sonnander, 2011). Translation and adaptation was made to the Standard Arabic (KAPARABISKA) and Arabic dialect of Hadari (KAPHADARI). The results were also compared with the participants' self-rated language abilities. The study is also implementing a comparison between KAP and the Hadari Arabic screening version of the Bilingual Aphasia Test (BAT). The translated assessment materials were tested on six participants, where five had Arabic as their mother tongue and one participant had Arabic and Swedish as mother tongues. The result indicates that the Arabic versions of KAP and BAT are assessing the language ability of the participants almost equally, but that KAP is assessing reading and writing abilities on a higher difficulty. The KAP assessments were conducted during half as long time as BAT. Both the KAP assessments and the BAT assessment identified participants with limited literacy skills, which indicates the importance of inquiring the patient’s education level to avoid false interpretation of the results.

  • 27.
    Schenkel, Pontus
    et al.
    Linköping University, Department of Management and Engineering, Commercial and Business Law.
    Sundin, Karin
    Linköping University, Department of Management and Engineering, Commercial and Business Law.
    36 § avtalslagen – till konsumentens värn?: Högsta domstolens domskäls förenlighet med syftet enligt prop. 1975/76: 812015Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Provision 36 of the Swedish Contract Act (SFS 1915:218) was introduced in 1976 in order to ensure legal protection for consumers in their relation to traders. The requisit ”unreasonably” however, on the one hand, is claimed to be too imprecise to be percceived to be legally secure for contractors. On the other hand, there is the perception that the meaning of the general clause is to leave room for a legally freer assessment. The purpose of this essay is to, with the data which can be provided by legislative history and the jurisprudence of the Supreme Court, examine the grounds, which are determined to fulfill the original purpose of the general clause, are satisfactory from a legally certain aspect. In the legislative history, we can see that the inquiry established that, the introduction of a general clause in the Swedish Contract Act, would be a valuable addition from a legally secure and predictable perspective. Then the inquiry deemed that an adjustment of unfair terms would be preferable, in case contracts shall be regulated using the general clause. Whether a term can be considered unfair, the inquirys opinion was that, the content of the agreement, the circumstances that existed when the contract was agreed, later occured conditions and the circumstances in general, had to be taken in account. The majority of the respondents concurred in the inquriys opinion about the reading of the general clause. However, according to the respondents assessments, the word ”unreasonably”, was preferable to the word ”unfair”. The rapporteur and the Council on Legislation considered the inquiry having reported to vaguely on the reading of the general clause, but they agreed with the respondents that the word ”unreasonably” was to prefer instead of ”unfair”. From the court cases, which are presented for in the essay, it is possible to determine that the most prominent grounds established by the Supreme Court, is predictability, the inferior position of the consumer and the clarity of contractual terms. In a predominantly number of court cases we believe the Supreme Court´s verdicts to be consistent with the purpose which permeated the legislative history. A few verdicts, however, are ambiguous, since we believe that the Supreme Court's reasoning, in the assessment of certain contractual terms of clarity, is inconsistent. We have found that the consequence of this is that there are far too high demands on the consumer, to the extent that it is required by him, to have firsthand knowledge of current legislation. Another problem with provision 36 of the Swedish Contract Act, seems to be that its enforcement in some cases leads to conflict with legal principles, for instance, the principle of predictability and the within contract law established principle, "pacta sunt servanda".

  • 28.
    Drugge, Jessica
    et al.
    Linköping University, Department of Management and Engineering, Political Science.
    Svensson, Elizabeth
    Linköping University, Department of Management and Engineering, Political Science.
    Biståndets framgång i Ghana: En jämförande fallstudie av Hungerprojektet och ActionAids biståndsarbete i Ghana2015Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    In the world today there are 842 million people hungry, which corresponds to the population of the US, Japan and Europe combined. The reason for their hunger is not lack of food, according to the UN, there are enough resources in the world for everyone to be satisfied. The majority of the hungry live in developing countries; in rural or slum areas and its mainly women and children.1 In order to among other things, to correct this untenable situation the Millennium Development Goals were created. Foreign aid would solve the victim's problems, but few issues are so controversial as foreign aid. Where does the money go? Do they make any difference to the individuals? What distinguishes a functioning foreign aid?

    The aim is to try to locate the factors leading to a successful assistance. This has been developed through a qualitative comparative case study. The selected organizations has been compered to the established theories in the field, these are mostly based on William Easterly and Jeffrey Sachs. The work focuses on ActionAid and The Hunger Project's work in Ghana with emphasis on implementation.

    One of the conclusions we have made in this paper is that there need to be good communication between the organizations and the local population. If those who live in the community do not recognize the problems or if the solution is not designed to fit the local conditions, then it will not be a long-term change. It is also important that all groups in the society are involved in the work process and especially the marginalized groups that usually consist of women and children. This work can be seen as a first step to locating aid organizations' success factors, but also illustrates common problems with foreign aid. 

  • 29.
    Söderberg, Christian
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Heuristisk utvärdering av typografi i responsiva gränssnitt2015Independent thesis Basic level (degree of Bachelor), 10,5 credits / 16 HE creditsStudent thesis
    Abstract [en]

    This study aims to develop a set of heuristics for evaluating typography in responsive user interfaces. By combining traditional design principles for typography with principles for responsive web design, twelve heuristics has been created. This list of heuristics has been used by graphic designers and user interface developers in two heuristic evaluations. The heuristics ability to lead to finding typographic problems in two different responsive interfaces has been analyzed, and the results from the user interface developers has been in main focus, since the goal was to create a tool for developers with a lack of knowledge in typography to create interfaces with better design. The results has shown that even though developers struggle to find the samt amount of typography problems as graphic designers, the heuristics does help to find problem. Even so, this indicate that a heuristic evaluation with non-typographic experts may need a few more participants than an evaluation with only typographic experts. The results also shows that an evaluation of a responsive user interface is best made through evaluation of the same interface on different devices with different screen sizes.

  • 30.
    Kinnunen, Isabelle
    Linköping University, Department of Science and Technology, Communications and Transport Systems. Linköping University, The Institute of Technology.
    An in depth analysis of the Preferential Bidding System for SAS Crew Planning2015Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Crew planning is a complex optimization problem that usually is divided into two separate parts, pairing and rostering. In the rostering process crewmembers are assigned a personal roster, a schedule, for the next coming time period. In order for the crew to have an influence on their roster, SAS have implemented a Preferential Bidding System (PBS) where the crew has the ability to express their wishes regarding their roster, formulated as bids. Generally there is an outspoken dissatisfaction among the crew about PBS and how it works and therefore the questions were raised of how the system could be more transparent and how the bid fulfillment could be communicated both internally and externally. The performed analysis was made with regard to bidding pattern and bid fulfillment and was both quantitative and qualitative. The quantitative part consisted of a thorough review of historic data (delimited to only four months) and a questionnaire, targeting the whole crew collective, was set up as a complementary qualitative analysis. In this thesis the work and result is presented. The result of the analysis shows that satisfaction felt by the crew cannot be directly compared to bid fulfillment as it is measured today. The major aspects of improving the PBS should include a simplification regarding mainly bid types, but also actions in order to increase the transparency of the system and awareness. The recommendation to SAS is to present statistics to crew for each bid type regarding number of placed bids, number of possible fulfillments and how much that is fulfilled thus visualizing the possibility to get a bid fulfilled. A revised range of bid types have also been recommended along with a few minor changes.

  • 31.
    Ahmed, Uday
    et al.
    Linköping University, Department of Management and Engineering, Manufacturing Engineering. Linköping University, Faculty of Science & Engineering.
    Ayo, Priscilla
    Linköping University, Department of Management and Engineering, Manufacturing Engineering. Linköping University, Faculty of Arts and Sciences.
    Developing Common Questions about Integrated Product Service Engineering (IPSE), Ecodesign and Engineering Education2015Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    In the recent years, more and more manufacturing firms recognize the benefit of providing products together with related services with an aim to gain higher profits as compared to supplying products without additional services. On the other hand, the competition in the global markets has been increased dramatically through increased sales of services in order to gain additional value for their products. In addition, several environmental challenges such as climate change, pollution, global warming impact, greenhouse gases emissions have played a vital role by influencing on the production protocols and trend of the companies. These challenges forced manufacturing countries to take into consideration environmentally conscious approach to their design thinking and industrial production processes. As a result, it became an important drive for manufacturing industries to shift from traditional product-oriented to service-oriented business models that has been witnessed during the last few years.

     

    The objective of this study research is to develop common questions that capture fundamental and common issues about Integrated Product Service Engineering (IPSE), Design for Environment (DFE) and Engineering education are effectives for industries to check and develop their knowledge, because the Engineering education plays a necessary role in associating socio-ethical knowledge with scientific and technological advances. The strategy taken to conduct this thesis task was first to study and understand the concept of Product Service System (PSS), IPSE, and Ecodesign as well as Engineering Education. Informative knowledge on these concepts were collected by reviewing several related journal articles, CIRP IPS2 conference proceedings.

     

    In this thesis the concepts of PSS, IPSE, DFE and Engineering Education discussed to develop the key common questions and issues to address the environmental, economic and social problems. Since PSS aims to reduce consumption through alternative schemes of product use as well as to increase overall resource productivity and dematerialization, but IPSE does not focus on a single factor but incorporates a wide range of factors such as environmental, social and economic issues. Whilst one of the main problems in this research focused on how to develop and strengthen the relationship between the academia and industry, and how this relation can be used to improve the academic performance and scientific research at universities and transfer them to industry.

     

    Sustainability and the life cycle concept have become a main solution for various problems such as a growing world population and a change in the industrial culture to come. As results Ecodesign and environmental considerations, financial aspects, product improvement as well as the commercial aspects were discussed in this project by understanding the previous concepts. The university considered as an important base of cultivating the talents, basic of inputs business organizations which help them to develop and improve their level of performance and quality of their products and services, and enhance its competitive position in the market. Changes in organized science further encouraged university interests in expanding technology transfer, because the scientific disciplines play an important role in influencing the type of interactions with industry as well as the University and Industry collaboration became the basic method of solving the problems to achieve (environmental, economic and social) sustainability.

  • 32.
    Suwala, Pawel
    Linköping University, Department of Computer and Information Science. Linköping University, Faculty of Science & Engineering.
    Challenges with modern web testing2015Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    The number of web applications continues to grow rapidly. Many applications that were traditionally desktop-based such as word processors, email clients or even file managers have now their web alternatives that often have bigger user base.

    While the software world is shifting from providing desktop-based applications to offering cloud-based services, challenges arise to provide high quality software in this radically different environment.

    Web-based applications are different in many aspects to their desktop equivalents. Web-based and desktop-based applications have radically dissimilar architecture, user interface, execution environment, requirements and limitations. To mention a few specific differences: the web application is executed in the context of a web browser, not operating system; code is executed in two separate places: on the server and in the web browser; code for the server is written in a different language than code for the client.

    Because of these differences, the traditional software testing techniques are only of limited use. To properly test a web application one needs to take into account numerous differences in Web-Browsers such as Internet Explorer, Mozilla Firefox, Google Chrome or Apple Safari. Simple input-output testing is useful only to limited degree, because output cannot be just compared to the predefined value but must be compared within the context of all the environments and operating systems the application supports. The fact that an application works in one browser does not guarantee that it will work at all in other browsers.

    The entire complexity of the problem makes testing web applications a very time consuming and difficult task. Often it takes significantly longer time to test the application than it is to implement it. Because of these difficulties, web applications are often tested exclusively manually by humans, and only to a limited degree. New techniques and technologies are necessary to approach the problem of web application testing.

    This paper includes a case study carried out during author’s work on a web-based application. It examines the current state-of-the-art of web application testing and suggests useful techniques in tackling the problem. 

  • 33.
    Johansson, Hanna
    Linköping University, Department for Studies of Social Change and Culture, Culture, Society and Media Production - KSM. Linköping University, Faculty of Arts and Sciences.
    Journalistic Constructions in the Kärrtorp Demonstrations: How are Racists, Antiracists and Immigrants Portrayed and Constructed in the Kärrtorp-Demonstrations in Dagens Nyheter and Aftonbladet?2015Independent thesis Advanced level (degree of Master (Two Years)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This study investigates journalistic constructions regarding the antiracism demonstration in Kärrtorp in 2013. How do the newspapers Dagens Nyheter and Aftonbladet construct the racist, antiracist and immigrant during and after the demonstration? Through the use of Critical Discourse Analysis, Media Theory, Nationalism Theory and Whiteness Theory this study examines how these groups (racist, antiracist, immigrant) are constructed to be excluded as part of the “others” as well as included as part of “us” in addition to who actually expresses opinions about these groups in the articles.       In the construction of the Kärrtorp demonstration a threat was presented (in form of Nazi organizations) that threatened the contemporary Swedish democracy and the solution offered here was to stand up for anti-racism and integration in the demonstration. The journalistic technique of coding and decoding is what occurs in many instances when comparing the perpetrator and their cause to history. The small minority, perpetrator and racist is within the articles constructed as men belonging to organized racist networks that do not believe that all human beings are equal and is constructed as one of the country of Sweden’s major problems that needs to be fixed. What has been argued then is that instead of only constructing and discussing racist propaganda and the extremes within the news it would more important to evaluate institutionalized routines and pattern behaviors within the Swedish society.       Noticeable in the study is also the journalists’ attempt to resent, reject and disapprove Racism, Nazism and violence on all levels and how they in general construct articles with antiracists as spokespersons. Moreover, immigration is mentioned in very few instances in the construction and usually through the racist or Nazi negative perspective with which the journalist does not agree.

  • 34.
    Schmidt, Oskar
    et al.
    Linköping University, Department of Management and Engineering, Economics. Linköping University, Faculty of Arts and Sciences.
    Güettler, Anders
    Linköping University, Department of Management and Engineering, Economics. Linköping University, Faculty of Arts and Sciences.
    Meda poteken i centrum: En analys av den fysiska lokaliseringen av apotek efter omregleringen samt ett statligt bidrags troliga påverkan på lokaliseringen2014Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The deregulation of the Swedish pharmacy market took place 1 July 2009. The number of pharmacies has since then grown from about 900 to more than 1300. It is of interest to investigate where these pharmacies have been located. This investigation is part of the purpose of this paper, along with an analysis of a subsidy’s (glesbygdsbidraget), likely effect of the location on pharmacies in thinly populated areas.

    Two thirds of all the new pharmacies have opened in areas with a high accessibility. Only a few pharmacies have opened in places where it previously where none. No pharmacies have located in areas with low or very low accessibility. The fact that pharmacies mostly open in more densely populated areas is in line with the location theory described by Hotelling.

    Pharmacies in areas with low accessibility may have positive externalities. Because of these positive externalities, a deal was made between the government and the pharmacy companies not to close 110 listed pharmacies. This deal ended 2013 and no new deal has been made. Instead, a subsidy was created that only pharmacies in thinly populated areas could apply for. 37 pharmacies have applied for the subsidy but the decision of what amount each pharmacy will receive has not yet been made. Based on the Norwegian pharmacy market and its subsidy we discuss that future pharmacies will continue to establish in densely populated areas.

    The pharmacies in thinly populated areas will maintain their demand for the subsidy in the future. The pharmacy market can be described as an oligopoly. Due to this oligopoly a game theory situation may occur where no pharmacy company wants to be the first to close in thinly populated areas because of the bad reputation that can follow such change. This game theory, together with the subsidy, creates incentives that may preserve the pharmacies in thinly populated areas.

  • 35.
    Mäkelä, Debora
    Linköping University, The Tema Institute, Department of Child Studies. Linköping University, Faculty of Arts and Sciences.
    Historical Child Abuse In Out-Of-Home Care: Finland Disclosing And Discussing Its Past2015Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The main focus in this thesis lies in the observation of how the public debate is formulating and developing in Finland in relation to the current implementation of the Inquiry on historical child abuse and neglect in out-of-home care. This thesis analyses the testimonies published around the investigation and on historical child abuse, in the public domain. The release of two documentaries broadcasted on National TV (YLE TV1) in 2013 and 2014 triggered a, however scarce, online public discussion with few newspapers’ as well as magazines’ articles covering informatively the inquiry. The online debate has so far seen the participation mainly of the victims themselves of historical abuse. Generally, I found a confirmation that the Finnish individualistic culture is hardly prompt to open discussion on such topics. As S.N., a care leaver, explains in the second documentary: (Lehikoinen, Luurankokaappi, 2014) “the culture does not give space” though people have “the need to speak.” My thematic analysis on this debate has nonetheless disclosed an urge to come to terms with a past of institutional abuse, framed in a general context of public mistrust in the Child Welfare4 system. The care-leavers, narrating their stories in the two TV documentaries, disclosed memories of neglect, violence and systematical isolation of the Poor. Their stories are interpreted through the debate on the media as stories of injustice. Their narration portraits a concept of “child care” very far from nowadays’ standards of child welfare. Care-leaver H.S. points his finger on the Finnish child-care institution where he spent his childhood in the ‘50s: “Only a monster can send a child to such a place!” (Lehikoinen, Varastettu Lapsuus, 2013).

  • 36.
    Grönhult, Magnus
    et al.
    Linköping University, Department of Management and Engineering, Business Administration. Linköping University, Faculty of Arts and Sciences.
    Karlsson, Felicia
    Linköping University, Department of Management and Engineering, Business Administration. Linköping University, Faculty of Arts and Sciences.
    Key Account Managements värde för säljande tjänsteföretag2015Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    To build strong and long-lasting customer relationships has become a necessity in industrial marketing, whereat the relationships in itself can be viewed as the most important asset for the company. Key Account Management has its roots in relationship marketing and has grown in popularity the past decades. By selecting and focusing primarily on a few key customers, which the company deems to be the most important, Key Account Management is purposed to generate and locate value. The purpose of this paper is to describe and substantiate the potential value, seen as the difference between advantages and disadvantages, that Key Account Management may provide for the selling company. The study has a qualitative approach consisting of six interviews. Two companies with Key Account Management, two companies without KAM and two customer companies were interviewed in a comparative design. One of the customers had a relationship to one of the companies with KAM, whilst the other one did not. By having a supporting organization, four critical aspects to the companies KAM, a qualified Key Account Manager, and active customers, soft values as improved relationships and customer understanding are guaranteed. These can in turn enable access to other soft and hard values that leads to higher profit. KAM is however an investment which occupies a lot of resources, alongside with creating potential disadvantages. The value has in this study been identified as the difference between potential advantages and disadvantages, but these differ from company to company which in turn makes the actual value from KAM various.

  • 37.
    Stiebel, Saga
    et al.
    Linköping University, Department of Management and Engineering, Business Administration. Linköping University, Faculty of Arts and Sciences.
    Wellander, Helena
    Linköping University, Department of Management and Engineering, Business Administration. Linköping University, Faculty of Arts and Sciences.
    Impact investment i Sverige: En finanseringsform som ger samhällsnytta2015Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Background: Impact investment is a new funding that has its origin and growth in both the USA and Europe. It is now emerging to Sweden. The phenomenon is described in the popular science literature as investments with the intention to generate measurable social and/or environmental impact along with a financial return. In Sweden impact investment has been observed for only a few years. Swedish operators have started to use the funding and the phenomenon can be understood as an idea that has moved to a new context, where it has been noticed and used in operational activities.

    Aim: The aim of the study is to create an understanding of the phenomenon impact investment in Sweden and to analyse in what way impact investment has been formed by its context.

    Methodology: The study has a hermeneutic research approach and has been conducted with a qualitative approach. The study has been realized with a total of seven key figures in the Swedish organizational field of impact investment. International reports of the phenomenon have been used to track the activities conducted in the countries included in the study.

    Conclusion: The study shows that impact investment has many different meanings in Sweden. Impact investment has been formed by its context and has been translated by new hybrid organisations in the society.

  • 38.
    Karlsson Schmidt, Carl
    Linköping University, Department of Electrical Engineering, Computer Vision. Linköping University, Faculty of Science & Engineering.
    Rhino and Human Detection in Overlapping RGB and LWIR Images2015Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    The poaching of rhinoceros has increased dramatically the last few years andthe park rangers are often helpless against the militarised poachers. LinköpingUniversity is running several projects with the goal to aid the park rangers intheir work.This master thesis was produced at CybAero AB, which builds Remotely PilotedAircraft System (RPAS). With their helicopters, high end cameras with a rangesufficient to cover the whole area can be flown over the parks.The aim of this thesis is to investigate different methods to automatically findrhinos and humans, using airborne cameras. The system uses two cameras, onecolour camera and one thermal camera. The latter is used to find interestingobjects which are then extracted in the colour image. The object is then classifiedas either rhino, human or other. Several methods for classification have beenevaluated.The results show that classifying solely on the thermal image gives nearly as highaccuracy as classifying only in combination with the colour image. This enablesthe system to be used in dusk and dawn or in bad light conditions. This is animportant factor since most poaching occurs at dusk or dawn. As a conclusion asystem capable of running on low performance hardware and placeable on boardthe aircraft is presented.

  • 39.
    Edman, Anna
    et al.
    Linköping University, Department of Management and Engineering, Business Administration. Linköping University, Faculty of Arts and Sciences.
    Marklinder, Johanna
    Linköping University, Department of Management and Engineering, Business Administration. Linköping University, Faculty of Arts and Sciences.
    Kundanpassad returhantering: E-handelsföretag och deras kunder, en studie om klädbranschen2015Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Background: The majority of the e-commerce companies in the retail industry are not profitable which is partly due to the high percentage of returned goods, which in the current situation is between 20-50 percent. In recent years the proportion of returned goods has increased and is also believed to increase in the future. By lowering the returns of goods with a few percent the e-commerce companies could save several millions, however customer loyalty can be lost unless the companies meets the customers’ expectations regarding the returns process.

    Purpose: The purpose is to identify the difference in customers’ returning behaviors in order to understand how companies' returns management can be adapted to different customer segmentations.

    Research method: The authors of the thesis have used a qualitative research method with a hermeneutic approach and applied both an explorative and a deductive approach.

    Results: The study has identified two different types of customer groups with different purchase and returns behaviors, thus companies should segment the customers based on these factors and the customers should be treated differently by the companies when it comes to returns management. The companies can improve their profitability by customizing their returns management because it generates greater customer satisfaction, increased added value and improved customer loyalty which results in increased profitability for the companies.

  • 40.
    Petersen, Elina
    et al.
    Linköping University, Department of Management and Engineering, Business Administration. Linköping University, Faculty of Arts and Sciences.
    Wahlström, Mikaela
    Linköping University, Department of Management and Engineering, Business Administration. Linköping University, Faculty of Arts and Sciences.
    Intern benchmarking i detaljhandeln: En analys av upplevelser och kritiska framgångsfaktorer2015Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Background

    Benchmarking is a popular managament tool butstudies have shown that benchmarking is notconsidered as an effective management tool as othermanagement tools, what the critical factors behind asuccessful internal benchmarking should therefore belooked into further. We also found, after reviewingformer studies, that there are lack of informationabout the experience of using internal benchmarking. Only a few studies have been done in retail whereinternal benchmarking seems useful.

    Aim

    The aim with the studie is to get more knowledgeabout the experiences of internal benchmarking inretail. The study also aims to state the critical factorsbehind a successful internal benchmarking.

    Research

    questions What is the experience of internal benchmarking inretail? What are the critical factors behind a successfulinternal benchmarking?

    Methodology

    The study has a qualitative approach and consists of 2 interviews with management and 5 interviews withstore managers. The studie also has an quantitativeapproach that consists of a survey with a populationof 75 people.

    Conclusion

    The conclusion of the study is that internalbenchmarking are experienced as motivating,stimulating, useful in the daily business and alsoincreases the understanding of the organization. Critical factors behind succescfull internalbenchmarking process are a clear process, education,access of data, a good forum for communication andhigh participation rate of the employees.

  • 41.
    Colliander Rundberg, Julia Adrianne Martine
    Linköping University, Department of Management and Engineering, Carl Malmsten - furniture studies. Linköping University, Faculty of Science & Engineering.
    Estetik i det kommersiella rummet2015Independent thesis Basic level (degree of Bachelor), 10,5 credits / 16 HE creditsStudent thesis
    Abstract [en]

    This is a project revolving around the commercial room such as fashion stores with its focus on shop fittings and their way to present products in boutiques like installations. Where fashion and interior blend together, putting layer on layer combining different aesthetic expressions. A space where architecture, interior, furniture, fashion and body meet. An environment depicting beauty and aesthetics that concern intimacy, desire and sensuousness. How do one create commercial spaces that seduce, spaces that evoke desires and cravings?

     

    To find a deeper and wider understanding regarding this subject I wanted to look backwards in history to see how these environments came to be and what counts as the start of our consumption driven society that we live in today. The project resulted in a prototype of a design idé, a piece of furniture regarding storage and the display of clothing, accessories and other fashion related products. With it I wanted to explore certain elements and the way to present and elevate products. I looked at furniture that work as props/scenography which purpose is to enhance and market/sell other products. The furniture has its own tone and is charged with a value regarding quality.

    A few weeks into the project I decided to incorporate the company & Other Stories as a part of my project and target.

  • 42.
    Kitsiou, Maria
    Linköping University, The Tema Institute. Linköping University, Faculty of Arts and Sciences.
    Children of a lesser school: An interdisciplinary study on disability in the Greek educational reality2015Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    ABSTRACT What is the situation for disabled children in the Greek educational system today, in the aftermath of the deep-seated socio-economic crisis? The present study is going to give an insight in children disability and how this is handled by the Greek educational system. To specify and illustrate the need for a qualitative perspective, it is necessary to take into consideration not only the exact numbers of disabled students and schools existing for them, along with the usefulness and functionality of their facilities, but also different qualitative aspects and intersecting parameters determining the attitude towards those children, such as gender, sexuality, age and bodily ability; all of them contributing to a specific collective mind-set that has arisen from a nexus of economical, educational, European and local structures, and their upheaval. This is such a study, providing a limited, but qualitative picture of the situation from an intersectional Gender Studies perspective onto legislative documents, the experiences of a few current educational practitioners (herein interviewed), and onto the state of the art of existing research on the topic which is mostly quantitative and statistics-based.  The over-arching question, guiding this investigation, is how the educational rights and well-fare of children with special educational needs, are practiced, cared for and discussed in the present Greek educational system with regard to intersectional gender concerns of inclusion and/or integration. This study hopes thus to provide an interdisciplinary snap-shot of the educational situation for disabled children in a disabled societal context.

  • 43.
    Wiklund, Tea
    Linköping University, Department of Social and Welfare Studies. Linköping University, Faculty of Health Sciences.
    Arbetsterapeutiska interventioner för vuxna med depression och ångestsyndrom: en litteraturstudie2015Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Depression and anxiety disorders are among the most common mental disorders and lead to serious activity limitations in work, leisure and self-care.  In spite of this, there are few systematic reviews on occupational therapy interventions for this client group. The study aim was to describe occupational therapy interventions for adults with depression or anxiety disorders. A systematic review was conducted in Pubmed, PsycInfo, Scopus and Cinahl. Eighteen articles were included. The articles were analyzed in accordance with Friberg (2012). Three main themes were identified: 1) To help clients gain insight into their life situation, 2) To teach clients how to manage and prevent symptoms, and 3) Occupation as means in the intervention. The findings have implications for how therapists can choose, communicate and carry out interventions as well as for future research. The importance of therapeutic strategies in the interventions was also discussed.

  • 44.
    Lindman, Karin
    Linköping University, Department of Management and Engineering, Carl Malmsten - furniture studies.
    Den andra arbetsplatsen: möbler för möten i offentliga miljöer2014Independent thesis Basic level (degree of Bachelor), 10,5 credits / 16 HE creditsStudent thesis
    Abstract [en]

    Today a lot of people choose to sit in cafés or other public places for work or meetings, but few of these places are suited for this. In my thesis I work with furniture for these places and needs. This report, which is a part of the thesis, describes our new work habits and why they have surged. This involves changes in work organization, digital development and various factors that attract people to places between work and leisure.

    A design project was conducted in collaboration with the arcitect firm Code Concept Development aimed at the restaurant Urban Deli and their new location at Sveavägen 44 in Stockholm. The result is a proposal with tables and chairs designed to be flexible and create possibilities for change in a place where a variety of activities are taking place.

  • 45.
    Stenbeck, Marcus
    Linköping University, Department of Science and Technology, Media and Information Technology. Linköping University, The Institute of Technology.
    Automatisk testning av WebGL på mobil- och desktopenheter2014Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    WebGL is a standard for drawing graphics in a web browser. Currently it isn’t widely understood how consistently WebGL performs across a majority of the de- vices that support it. Determining if an image looks correct to a human observer is an interesting problem. The solution for this is useful when developing WebGL applications, since a developer could make better informed decisions during de- velopment. The differences in capability between WebGL implementations are studied, and a few factors are selected that likely will contribute to variations in the rendered output. These factors are found by studying the WebGL specification documen- tation, and in the cases where it is ambiguous, further, authorative sources have contributed to the choice of factors studied. A prototype testing system is developed, including a tool for simulating imple- mentation differences. Two image processing algorithms are evaluated for their suitability in an automatic testing system. For testing, four test cases are devel- oped. The testing system is run with the test cases on wide range of devices, both mobile and desktop. The results show that image processing is not suitable alone the source for deter- mining a test success or failure. However, some promise is shown in using image processing as one component in a fully automatic testing system. Furthermore, developing test cases that perform as the test constructor intends is proven to be a challenge in itself.

  • 46.
    Granholm, Jonas
    Linköping University, Department of Mathematics, Mathematics and Applied Mathematics. Linköping University, The Institute of Technology.
    Remarkable curves in the Euclidean plane2014Independent thesis Basic level (degree of Bachelor), 10,5 credits / 16 HE creditsStudent thesis
    Abstract [en]

    An important part of mathematics is the construction of good definitions. Some things, like planar graphs, are trivial to define, and other concepts, like compact sets, arise from putting a name on often used requirements (although the notion of compactness has changed over time to be more general). In other cases, such as in set theory, the natural definitions may yield undesired and even contradictory results, and it can be necessary to use a more complicated formalization.

       The notion of a curve falls in the latter category. While it is intuitively clear what a curve is – line segments, empty geometric shapes, and squiggles like this: – it is not immediately clear how to make a general definition of curves. Their most obvious characteristic is that they have no width, so one idea may be to view curves as what can be drawn with a thin pen. This definition, however, has the weakness that even such a line has the ability to completely fill a square, making it a bad definition of curves. Today curves are generally defined by the condition of having no width, that is, being one-dimensional, together with the conditions of being compact and connected, to avoid strange cases.

       In this thesis we investigate this definition and a few examples of curves.

  • 47.
    Lehtonen, Eveliina
    et al.
    Nutrition Unit, National Institute for Health and Welfare, Mannerheimintie 164a, FIN00300, Helsinki, Finland.
    Ormisson, Anne
    Department of Paediatrics, University of Tartu, Tartu, Estonia.
    Nucci, Anita
    Division of Nutrition, School of Health Professions, College of Health and Human Sciences, Georgia State University, Atlanta, GA, USA.
    Cuthbertson, David
    Pediatrics Epidemiology Center, University of South Florida, Tampa, FL, USA.
    Sorkio, Susa
    Nutrition Unit, National Institute for Health and Welfare, Mannerheimintie 164a, FIN00300, Helsinki, Finland.
    Hyytinen, Mila
    Institute of Clinical Medicine, University of Helsinki, Helsinki, Finland.
    Alahuhta, Kirsi
    Nutrition Unit, National Institute for Health and Welfare, Mannerheimintie 164a, FIN00300, Helsinki, Finland.
    Berseth, Carol
    Medical Affairs Department, Mead Johnson Nutrition, Evansville, IN, USA.
    Salonen, Marja
    Institute of Clinical Medicine, University of Helsinki, Helsinki, Finland.
    Taback, Shayne
    Departments of Pediatrics and Child Health and Community Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada.
    Franciscus, Margaret
    Children’s Hospital of Pittsburgh of UPMC, University of Pittsburgh, Department of Endocrinology, Pittsburgh, PA, USA.
    González-Frutos, Teba
    Endocrinology, Diabetes and Nutrition Research Group/CIBERDEM, Hospital Universitario de Cruces, Barakaldo, Bizkaia, Spain.
    Korhonen, Tuuli E
    Nutrition Unit, National Institute for Health and Welfare, Mannerheimintie 164a, FIN00300, Helsinki, Finland.
    Lawson, Margaret L
    Division of Endocrinology and Metabolism, Children’s Hospital of Eastern Ontario, University of Ottawa, Ottawa, Ontario, Canada.
    Becker, Dorothy J
    Children’s Hospital of Pittsburgh of UPMC, University of Pittsburgh, Department of Endocrinology, Pittsburgh, PA, USA.
    Krischer, Jeffrey P
    Pediatrics Epidemiology Center, University of South Florida, Tampa, FL, USA.
    Knip, Mikael
    Children’s Hospital, University of Helsinki and Helsinki University Central Hospital, Helsinki, Finland / Folkhälsan Research Center, Helsinki, Finland / Department of Pediatrics, Tampere University Hospital, Tampere, Finland.
    Virtanen, Suvi M
    Nutrition Unit, National Institute for Health and Welfare, Mannerheimintie 164a, FIN00300, Helsinki, Finland / School of Health Sciences, University of Tampere, Tampere, Finland / Research Center for Child Health, Tampere University and University Hospital, Tampere, Finland.
    Use of vitamin D supplements during infancy in an international feeding trial.2014In: Public Health Nutrition, ISSN 1368-9800, E-ISSN 1475-2727, Vol. 17, no 4, 810-22 p.Article in journal (Refereed)
    Abstract [en]

    OBJECTIVE: To examine the use of vitamin D supplements during infancy among the participants in an international infant feeding trial.

    DESIGN: Longitudinal study.

    SETTING: Information about vitamin D supplementation was collected through a validated FFQ at the age of 2 weeks and monthly between the ages of 1 month and 6 months.

    SUBJECTS: Infants (n 2159) with a biological family member affected by type 1 diabetes and with increased human leucocyte antigen-conferred susceptibility to type 1 diabetes from twelve European countries, the USA, Canada and Australia.

    RESULTS: Daily use of vitamin D supplements was common during the first 6 months of life in Northern and Central Europe (>80% of the infants), with somewhat lower rates observed in Southern Europe (> 60%). In Canada, vitamin D supplementation was more common among exclusively breast-fed than other infants (e.g., 71% v. 44% at 6 months of age). Less than 2% of infants in the U.S.A. and Australia received any vitamin D supplementation. Higher gestational age, older maternal age and longer maternal education were study-wide associated with greater use of vitamin D supplements.

    CONCLUSIONS: Most of the infants received vitamin D supplements during the first 6 months of life in the European countries, whereas in Canada only half and in the U.S.A. and Australia very few were given supplementation.

  • 48.
    Prieto-Velasco, Mario
    et al.
    Complejo Asistencial Universitario de León, León, Spain .
    Isnard Bagnis, Corinne
    Université Pierre et Marie Curie, Paris France .
    Dean, Jessica
    Department of Clinical Health Psychology, Salford Royal Hospital, Salford, UK.
    Goovaerts, Tony
    Cliniques Universitaires St. Luc, Brussels, Belgium .
    Melander, Stefan
    Östergötlands Läns Landsting, Heart and Medicine Center, Department of Nephrology.
    Mooney, Andrew
    St James’s University, Leeds, UK .
    Nilsson, Eva-Lena
    Skåne Universitetssjukhus, Malmö .
    Rutherford, Peter
    Baxter-Gambro Renal, Zurich, Switzerland.
    Trujillo, Carmen
    Hospital Regional Carlos Haya, Malaga, Spain.
    Zambon, Roberto
    Unità Operativa di Nefrologia, Dialisi e Trapianto, Ospedale San Bortolo,Vicenza, Italy.
    Crepaldi, Carlo
    Unità Operativa di Nefrologia, Dialisi e Trapianto, Ospedale San Bortolo,Vicenza, Italy.
    Predialysis education in practice: a questionnaire survey of centres with established programmes.2014In: BMC research notes, ISSN 1756-0500, Vol. 7, 730- p.Article in journal (Refereed)
    Abstract [en]

    BACKGROUND: There is growing evidence that renal replacement therapy option education (RRTOE) can result in enhanced quality of life, improved clinical outcomes, and reduced health care costs. However, there is still no detailed guidance on the optimal way to run such programmes. To help address this knowledge gap, an expert meeting was held in March 2013 to formulate a position statement on optimal ways to run RRTOE. Experts were selected from units that had extensive experience in RRTOE or were performing research in this field. Before the meeting, experts completed a pilot questionnaire on RRTOE in their own units. They also prepared feedback on how to modify this questionnaire for a large-scale study.

    METHODS: A pilot, web-based questionnaire was used to obtain information on: the renal unit and patients, the education team, RRTOE processes and content, how quality is assessed, and funding.

    RESULTS: Four nurses, 5 nephrologists and 1 clinical psychologist (9 renal units; 6 EU countries) participated. Nurses were almost always responsible for organising RRTOE. Nephrologists spent 7.5% (median) of their time on RRTOE. Education for the patient and family began several months before dialysis or according to disease progression. Key topics such as the 'impact of the disease' were covered by every unit, but only a few units described all dialysis modalities. Visits to the unit were almost always arranged. Materials came in a wide variety of forms and from a wide range of sources. Group education sessions were used in 3/9 centres. Expectations on the timing of patients' decisions on modality and permanent access differed substantially between centres. Common quality assurance measures were: patient satisfaction, course attendance, updated materials. Only 1 unit had a dedicated budget.

    CONCLUSIONS: There were substantial variations in how RRTOE is run between the units. A modified version of this questionnaire will be used to assess RRTOE at a European level.

  • 49.
    Prabahar, Jasila
    Linköping University, Department of Biomedical Engineering. Linköping University, The Institute of Technology.
    Localization of Stroke Using Microwave Technology and Inner product Subspace Classifier2014Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Stroke or “brain attack” occurs when a blood clot carried by the blood vessels from other part of the body blocks the cerebral artery in the brain or when a blood vessel breaks and interrupts the blood flow to parts of the brain. Depending on which part of the brain is being damaged functional abilities controlled by that region of the brain is lost. By interpreting the patient’s symptoms it is possible to make a coarse estimate of the location of the stroke, e.g. if it is on the left or right hemisphere of the brain. The aim of this study was to evaluate if microwave technology can be used to estimate the location of haemorrhagic stroke.

    In the first part of the thesis, CT images of the patients for whom the microwave measurement are taken is analysed and are used as a reference to know the location of bleeding in the brain. The X, Y and Z coordinates are calculated from the target slice (where the bleeding is more prominent). Based on the bleeding coordinated the datasets are divided into classes. Under supervised learning method the ISC algorithm is trained to classify stroke in the left and right hemispheres; stroke in the anterior and posterior part of the brain and the stroke in the inferior and superior region of the brain. The second part of the thesis is to analyse the classification result in order to identify the patients that were being misclassified.

    The classification results to classify the location of bleeding were promising with a high sensitivity and specificity that are indicated by the area under the ROC curve (AUC). AUC of 0.86 was obtained for bleedings in the left and right brain and an AUC of 0.94 was obtained for bleeding in the inferior and superior brain. The main constraint was the small size of the dataset and few availability of dataset with bleeding in the front brain that leads to imbalance between classes. After analysis it was found that bleedings that were close to the skull and few small bleedings that are deep inside the brain are being misclassified. Many factors can be responsible for misclassification like the antenna position, head size, amount of hair etc.

    The overall results indicate that SDD using ISC algorithm has high potential to distinguish bleedings in different locations. It is expected that the results will be more stable with increased patient dataset for training.

  • 50.
    Josefsson, Lena
    Linköping University, Department of Clinical and Experimental Medicine, Division of Clinical Sciences. Linköping University, Faculty of Health Sciences.
    Är familjeterapi ett alternativ på vårdcentralen?2014Independent thesis Advanced level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Over the last 15 years counselors, psychologists and psychotherapists are the professions hired for counseling in the Swedish primary care centers. Evaluations of the treatments show healthier patients and lower health care costs. Biological, psychological and social functions are central in counseling, since these features affect the description of the problem and the effect based on the level of functioning in relation to the partner and relatives. The primary care facilities are the first-line of caregivers, from maternal - to elderly care. When circumstances change for the patient, the whole family-network surrounding him/her is affected. The purpose of this study was to investigate what patients thought of bringing their relatives into counseling, and with which openness and what experience counselors invited the network to take part? The respondents answered questions in a survey, and the data was analyzed mainly in a quantitative fashion. The results showed that approximately half of the respondents wanted someone from their family-network to participate in the counseling. The other patients did not want their families’ participation, and thought of their own connection to the counselor as essential. The majority of the counselors claimed to offer couples and family counseling. The aim of the couple and family counseling differed between the respondents. The study suggests that the family is invited as resource at any time to get extended information and enhanced understanding of the patient's life situation. Some respondents described the counseling as processing of the interaction between the couple or the family members. A few patients said they had had couple or family counseling. They described it as being helpful and that working with the communication had been a contributing factor to the favorable outcome. 

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