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  • 1.
    Johansson, Henrik
    Linköping University, Department of Computer and Information Science.
    Automating a test strategy for a protocoldecoder tool2008Independent thesis Advanced level (degree of Master), 20 poäng / 30 hpStudent thesis
    Abstract [en]

    Within Ericsson AB, integration and verification activities is done on the network level in order to secure the functionality of the network. Protocol analysers are used to capture the traffic in the network. This results in many log files, which needs to be analysed. To do this, a protocol decoder tool called Scapy/LHC is used. Scapy/LHC is a framework that allows the users to write their own script to retrieve the data they need from the log files. The Scapy/LHC framework is incrementally developed as open source within Ericsson when there are needs for more functionality. This is often done by the users, outside normal working tasks. Because of this, there is almost no testing done to verify that old and new functionality works as expected, and there is no formal test strategy in use today.


    The goal of this master’s thesis is to evaluate test strategies that are possible to use on the Scapy/LHC framework. To make the time needed for the testing process as short as possible, the test strategy needs to be automated. Therefore, possible test automation tools shall also be evaluated.


    Two possible test strategies and two possible test automation tools are evaluated in this thesis. A test strategy, where the scripts that are written by the users are used, is then selected for implementation. The two test automation tools are also implemented. The evaluation of the implemented test strategy shows that it is possible to find defects in the Scapy/LHC framework in a time efficient way with help of the implemented test strategy and any of the implemented test automation tools.

  • 2.
    Engström, Maria
    et al.
    Linköping University, Department of Medical and Health Sciences, Radiology.
    Karlsson, Thomas
    Linköping University, Department of Behavioural Sciences and Learning, Disability Research.
    Landtblom, Anne-Marie
    Linköping University, Department of Clinical and Experimental Medicine, Neurology.
    Craig, A. D. (Bud)
    Atkinson Research Laboratory, Barrow Neurological Institute, Phoenix, AZ.
    Mental energy: graded co-activation of the anterior insular and anterior cingulate cortices during challenging working memory,  visual perception and motor speed tasks.Manuscript (preprint) (Other academic)
  • 3.
    Aria, Erfan
    Linköping University, Department of Science and Technology, Communications and Transport Systems. Linköping University, The Institute of Technology.
    Investigation of automated vehicle effects on driver’s behavior and traffic performance2016Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Advanced Driver Assistance Systems (ADAS) offer the possibility of helping drivers to fulfill their driving tasks. Automated vehicles are capable of communicating with surrounding vehicles (V2V) and infrastructure (V2I) in order to collect and provide essential information about driving environment. Studies have proved that automated vehicles have a potential to decrease traffic congestion on road networks by reducing the time headway, enhancing the traffic capacity and improving the safety margins in car following. Furthermore, vehicle movement and driver’s behavior of conventional vehicles will be affected by the presence of automated vehicles in traffic networks. Despite different encouraging factors, automated driving raises some concerns such as possible loss of situation awareness, overreliance on automation and degrading driving skills in absence of practice. Moreover, coping with complex scenarios, such as merging at ramps and overtaking, in terms of interaction between automated vehicles and conventional vehicles need more research. This thesis work aims to investigate the effects of automated vehicles on driver’s behavior and traffic performance. A broad literature review in the area of driving simulators and psychological studies was performed to examine the automated vehicle effects on driver’s behavior. Findings from the literature survey, which has been served as setup values in the simulation study of the current work, reveal that the conventional vehicles, which are driving close to the platoon of automated vehicles with short time headway, tend to reduce their time headway and spend more time under their critical time headway. Additionally, driving highly automated vehicles is tedious in a long run, reduce situation awareness and can intensify driver drowsiness, exclusively in light traffic. In order to investigate the influences of automated vehicles on traffic performance, a microscopic simulation case study consisting of different penetration rates of automated vehicles (0, 50 and 100 percentages) was conducted in VISSIM software. The scenario network is a three-lane autobahn segment of 2.9 kilometers including an off-ramp, on-ramp and a roundabout with some surrounding urban roads. Outputs of the microscopic simulation in this study reveal that the positive effects of automated vehicles on roads are especially highlighted when the network is crowded (e.g. peak hours). This can definitely count as a constructive point for the future of road networks with higher demands. In details, average density of autobahn segment remarkably decreased by 8.09% during p.m. peak hours in scenario with automated vehicles. Besides, Smoother traffic flow with less queue in the weaving segment was observed. Result of the scenario with 50% share of automated vehicles moreover shows a feasible interaction between conventional vehicles and automated vehicles. Meaningful outputs of this case study, based on the input data from literature review, demonstrate the capability of VISSIM software to simulate the presence of automated vehicles in great extent, not only as an automated vehicle scenario but also a share of them, in traffic network. The validity of the output values nonetheless needs future research work on urban and rural roads with different traffic conditions.

  • 4.
    Bennevall, Marcus
    Linköping University, Department of Mathematics, Mathematics and Applied Mathematics. Linköping University, Faculty of Science & Engineering.
    Cultivating Creativity in the Mathematics Classroom using Open-ended Tasks: A Systematic Review2016Independent thesis Advanced level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Creativity is an ever relevant concept in problem-solving. Indeed, one could argue that no problem is really problematic unless it requires creative thinking; such problems can be solved by simply applying known facts and employing suitable algorithms. Yet, that is exactly how many tasks in mathematics textbooks are structured today. The present study aims to find other tasks, which can infuse creativity in the mathematics classroom. Special attention is turned towards a class of tasks known as open-ended tasks because of their creative potential. A literature review spanning 70 sources yields 17 types of open-ended tasks, and these are subsequently exemplified, classified, analyzed, and discussed from a teacher’s perspective.

  • 5.
    Lattik, Irene
    Linköping University, Department of Behavioural Sciences and Learning.
    Rektors pedagogiska ledarskap: Främst mot gymnasienivå2015Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The aim of this study is to establish whether or not headmasters and teachers feel that pedagogical leadership in a school is important. Many studies have shown that pedagogical leadership can contribute to a better climate for the pupils. In 2011 the upper secondary schools were given a new curriculum in which headmasters became legally responsible for the pedagogical leadership of their school. That meant that the headmaster was given a new role as leader. Research would seem to indicate that a headmaster needs to concentrate more on the core activity of the school. This means that he/she must be a pedagogical leader and must concentrate on promoting a pupil-active methodology. In order to ascertain whether or not this has been the case qualitative observations and interviews with three headmasters from the municipal upper secondary school have been carried out. All three were given the same questions the work of headmasters. The method used from the start was hemeneutic; this was then replaced by grounded theory. Results show that headmasters in the upper-secondary school seldom work in a pedagogical manner. The reasons given were lack of time, lack of training and a fact that headmasters believe that they must do all working tasks themselves - The problem of leadership sin schools is global and many countries are cooperating within OECD to find new ways to lead schools in the changeable societies the world is faced with. 

  • 6.
    Hammarbäck, Madeleine
    Linköping University, Department of Computer and Information Science. Linköping University, Faculty of Arts and Sciences.
    Gemensamma köp av presenter: en kvalitativ studie kring gemensamma köp av presenter samt användbarhetsutvärdering och målgruppsanalys rörande en tjänst för underlättande av sådana köp2015Independent thesis Basic level (degree of Bachelor), 12 credits / 18 HE creditsStudent thesis
    Abstract [en]

    To buy and give presents together with others can be both practical and fun but also difficult. This work has involved a usability test of a service for facilitating joint purchases, produce personas in order to let the company get to know its target group, answer a number of specific questions posed by the company, and also answer the question how joint gift purchases work. This was done through questionnaires, through usability tests where usability issues were identified and the usability metric expectation measure was used, and through interviews and thematic analysis. The outcome was a list of usability issues, improvement proposals from the participants and answers to the company’s questions. Furthermore the results from the expectation measure showed that all tasks in the test was both expected and perceived to have high usability. The work also yielded two personas and seven themes as the answer to the research question.

  • 7.
    Andersson, Erik
    et al.
    Linköping University, Department of Science and Technology, Communications and Transport Systems. Linköping University, The Institute of Technology.
    Brandin, Emma
    Linköping University, Department of Science and Technology, Communications and Transport Systems. Linköping University, The Institute of Technology.
    Mapping of administrative tasks performed by medical doctors at the Department of Dermatology, University Hospital at Linköping2015Independent thesis Basic level (degree of Bachelor), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Efter att en privat hudklinik i Linköping successivt lade ner sin verksamhet under år 2014, står Hudkliniken vid Universitetssjukhuset i Linköping inför en stor utmaning med ett ökat remissinflöde och en kontinuerligt ökad efterfrågan på vård. Under år 2014 tog Hudkliniken emot 1 300 fler remisser än år 2013 och i dagsläget har kliniken en patientkö på 2 000 patienter, vilken förväntas öka med 500-1 000 patienter de kommande åren. En heltidsarbetande läkare har i dagsläget totalt åtta timmars administrativ tid per vecka. Tidigare har kapacitetsberäkningar utförts på Hudkliniken, dock har aldrig de administrativa momenten läkarna utför studerats. Denna studie syftar till att kartlägga nuläget över vilka administrativa moment läkarna utför och sedan identifiera åtgärder som kan förbättra läkarens arbetsgång. Data har samlats in via en: fokusgruppsintervju, fyra semi-strukturerade intervjuer samt observationer av sex olika läkare. I den kartläggning som upprättats har totalt 89 stycken administrativa moment uppmärksammats dessutom har 3 icke administrativa moment identifierats, i samband med de olika datainsamlingarna. Det har observerats att det under ett typiskt administrationspass allokeras mycket tid till att läsa och bedöma laboratoriesvar utifrån respektive patientjournal. Det resultat som framkommit är att läkarna i dagsläget har för lite administrativ tid i förhållande till omfattningen på patientadministrationen; till viss del arbetar läkarna övertid för att hinna med. Ett av de moment som läkarna upplever stör arbetsgången är att spara diktat. Genom att införa funktionen att diktatets filnamn automatiskt döps till patientens personnummer skulle detta störningsmoment elimineras. I dagsläget har inte alla läkare en telefon vid sin arbetsplats, vilket kan skapa problem om två läkare vill ringa samtidigt eller om en av läkarna väntar på ett samtal samtidigt som den andre redan använder telefonen. Studien anser att införandet av dubbla skärmar kan effektivisera läkarnas administrativa arbete, då de ofta växlar mellan olika programvaror. Dessutom påpekar läkarna att det finns brister i de programvaror som de använder dagligen. För att åtgärda dessa brister bör Hudkliniken utse en ansvarig läkare som driver förbättringsarbetet för de berörda programvarorna.Slutligen rekommenderas Hudkliniken att utöka kommunikationen mellan de olika yrkeskategorierna samt införa olika tillfällen där läkarna kan framföra förbättringsförslag samt diskutera den dagliga verksamheten.

  • 8.
    Börjesson, Veronica
    et al.
    Linköping University, Department of Science and Technology, Media and Information Technology. Linköping University, The Institute of Technology.
    Jonsson, Karolin
    Linköping University, Department of Science and Technology, Media and Information Technology. Linköping University, The Institute of Technology.
    Evaluating the user experience in mobile games using session recording tools2015Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    This thesis work examines how the user experience of mobile games can be evaluated with the use of session recording tools. The thesis project was carried out at the mobile games development company MAG Interactive, and the aim was to produce a workflow for the company with guidelines for how to conduct user testing with session recording tools for mobile devices. In order to evaluate the tools and services, and to develop the workflow, several user tests have been conducted. When using mobile session recording tools, it is possible to record the screen of the device, the microphone input and in some tools also the front camera input while the user is playing the game. Recording the test session makes it easier to understand and evaluate the player experience of the game and also to identify usability issues. The thesis also covers other parts necessary when conducting user testing besides the actual session recording tool. These are test set up (instructions, tasks etc.), integration, distribution of the test and the application and also analysis of the recorded test session.

  • 9.
    Kajfalk, Rebecca
    et al.
    Linköping University, Department of Science and Technology, Communications and Transport Systems. Linköping University, The Institute of Technology.
    Taylor, Robert
    Linköping University, Department of Science and Technology, Communications and Transport Systems. Linköping University, The Institute of Technology.
    Mapping of the referral management at the Department of Internal Medicine2015Independent thesis Basic level (degree of Bachelor), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    At the Department of Internal Medicine, Vrinnevisjukhuset, there is a need to map the referral management system at all of their divisions. This report intends to map these and provide recommendations for where there is room for improvement.

    Data was collected by performing observations and interviews with doctors, nurses, assistant nurses and medical secretaries. Historical data from the year 2014 was also used to investigate how many referrals each department receives and how much time is needed for the assessment process. Historical data from January to April year 2015 was used to investigate how long the lead-time is from the referral has been received to the point where it has been assessed.

    After the mapping process was completed, emails were sent to the staff that had been observed and interviewed in order to validate its correctness. These maps illustrate the differences between the departments, where the most distinct differences were whether they work alone or in groups, if they handled the referrals digitally or on paper and which profession that handle the administrative tasks.

    The problem areas that have been identified and within the principles of Lean are called wastes, is over production, waiting, defects, skills and motion. Over production occurs when doctors work in groups to do the assessment, but the responsible doctor does the final assessment at a later date. Connected to this is also the waste waiting because of the extra time spent, since the assessment could have been done directly at the group assessment. The wastes over production and defects appear when processing inadequate referrals. Finally the wastes skills and motion were identified, because of some tasks being performed by the wrong profession.

    The final recommendations are that the divisions should do the assessment of the referrals in groups, provided that they have time to document the assessment directly in Cosmic and not at a later date. Medical secretaries should perform administrative tasks that do not require a medical education. The divisions should exploit Cosmic and handle the referrals digitally instead of doing it on paper. The Department of Internal Medicine should also investigate whether it is possible to create a template that the referring doctors can use when sending referrals to the Department of Internal Medicines divisions, in order to increase the quality of the ingoing referrals.

  • 10.
    Didriksson, Therese
    Linköping University, Department of Mathematics, Mathematics and Applied Mathematics. Linköping University, Faculty of Science & Engineering.
    Öppna och rika matematikuppgifter i skolundervisningen2015Independent thesis Advanced level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Att sträva efter att vara en skola för alla innebär en stor variation i klassuppsättningarna och likaså kunskapsnivåerna inom klasserna. Att då som lärare ge eleverna det stöd och stimulans som de behöver för att kunna utvecklas så långt som möjligt kan vara en utmaning. Dessutom har provresultat från nationella prov och resultat från PISA-undersökningar visat att elever har svårt med matematik i skolan. Därför har det i denna systematiska litteraturstudie undersökts om öppna och/eller rika matematikuppgifter skulle kunna öka elevernas stimulans och resultat i matematik. De frågeställningar som lades till grund för studien är:

     

    Vad bör en matematiklärare tänka på för att konstruera stimulerande öppna matematikuppgifter? Vilka erfarenheter har lärare och elever av att använda öppna respektive rika matematikuppgifter i undervisningen?

     

    Studiens resultat visar bl.a. på att läraren ska tänka på att den öppna matematikuppgiften ska vara tydlig och ha ett tydligt syfte och att eleverna ska hinna lösa uppgiften på den tid som erbjuds. Uppgiften ska dessutom kunna lösas på flera olika sätt och kunna ha flera korrekta svar. Enligt lärares och elevers erfarenheter har öppna matematikuppgifter visat sig vara stimulerande vid grupparbeten, men mindre stimulerande då läraren ställer öppna frågor till en hel klass samtidigt. Arbetet med öppna matematikuppgifter har också visat att det ökat elevernas förståelse för matematiken. När det gäller de rika matematikuppgifterna har de visat sig kunna knyta samman flera områden inom matematiken och på så sätt antagligen kunna öka elevernas förståelse för matematiken.

  • 11.
    Larsson, Andreas
    Linköping University, Department of Computer and Information Science. Linköping University, Faculty of Science & Engineering.
    Development of a customer support process tool in SharePoint Online2015Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Management thinking has changed focus from bringing in new customers to under- standing the significance of maintaining existing customers and the need to attain loyalty with these customers. This has increased the importance of keeping good customer relationships. One important element to attain good customer relations is through a solid customer support.

    In this thesis a customer support approach for a software consultancy company has been implemented. The goal was to create a SharePoint Online application that would work as a single point of contact for the customers to improve the issue resolution process.

    Requirements elicitation was done through five customer interviews to obtain opinions and needs. Moreover, based on the customer requirements a workshop were held with developers from the consultancy firm to design a workflow proto- type.

    The final result is a customer-centered process that takes reported issues and manages the tickets through the issue life cycle until the issue is resolved. The approaches relies heavily on light-weight feedback in terms of mail notifications, reminders, and automatic assignment of tasks.

    The new process was developed in SharePoint Online and implemented using SharePoint Designer. 

  • 12.
    Larsson, Elias
    et al.
    Linköping University, Department of Clinical and Experimental Medicine. Linköping University, Faculty of Health Sciences.
    Isaksson, Fredrik
    Linköping University, Department of Clinical and Experimental Medicine. Linköping University, Faculty of Health Sciences.
    Avgörande faktorer för talnaturlighet hos personer med Parkinsons sjukdom: Korrelationsstudie mellan naiva lyssnares bedömning och akustisk analys2015Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Speech and voice changes are common in Parkinson’s disease. These changes can affect the speaker’s intelligibility but can also have a negative impact on the perceived naturalness of speech. The research available regarding the different factors that affect speech naturalness is scarce, which was the motivation behind this study.

    The aim of the present study was to investigate whether the level of perceived speech naturalness could derive from any specific aspects of speech. This was accomplished by recording speech samples from eight people with Parkinson’s disease using a test battery with various speech tasks. These samples were presented to a group of 27 naive listeners whose task was to judge the level of intelligibility as well as the level of speech naturalness. Correlations were then made between their assessments and various acoustic measurements.

    The main finding of the present study was that speech and articulation rate seemed to have the greatest impact on the perceived level of naturalness, where the people who had the slowest rate were judged to be the least natural sounding. Furthermore there were strong indications that the level of intelligibility correlated with the level of speech naturalness. In this study there were no other acoustic correlates found with statistical significance.

  • 13.
    Schultz, Nicklas
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, Faculty of Science & Engineering.
    Extending browser platforms with native capabilities, enabling additional features in a media streaming context2015Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Web applications an play increasingly central role in our every day life, as many of our computer based tasks are performed solely within the web browser. Desktop applications requiring installation is becoming part of the past and most applications gets a web alternative — turning the web into a target platform for application development. A complication with this is that the web lack the performance of native applications, motivating a need for something more powerful. This thesis investigates different technologies that aim to solve this problem by allowing developers to create native web applications, that allow web applications to use native capabilities. Two such technologies are Xax and Native Client (NaCl), which allow web applications to run compiled native code in the web browser, while still providing the portability across operating systems. In addition to the investigation a case study of how Portable Native Client (PNaCl) is to use for creating a native web application. A performance analysis is presented in order to determine how large the performance gains are with native web applications compared to traditional. The results show that NaCl performance is far superior to JavaScript, and very close to native speeds. Native Client is a great technology, both for migrating legacy C/C++ applications to the web and for creating high performance native web applications. The biggest challenge for Native Client is to get accepted by other browser manufacturers

  • 14.
    Robertsson, Ester
    et al.
    Linköping University, Department of Management and Engineering, Business Administration. Linköping University, Faculty of Arts and Sciences.
    Gustafsson, Sara
    Linköping University, Department of Management and Engineering, Business Administration. Linköping University, Faculty of Arts and Sciences.
    Revisorns personlighet: Hur påverkar revisorns personlighetsdrag preferens för struktur och bedömning?2015Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Background: More structure is being introduced in the auditing profession. Auditors need to balance structured and judgment-related tasks to maintain a high quality in the audit process. The individual auditor influences the process as personality traits have been shown to be related to the tasks which are preferred. 

    Aim: The purpose is to explain how the auditor's personality traits influence preference for structure and judgment.

    Theory: Trait theory with focus on Big Five, vocational interests, comfort theory and definitions of structure and judgment.

    Method: The study uses a deductive research approach where hypothesis testing is used to test the above listed theories. The study is quantitative and survey method is used. The sample consists of certified auditors from Revisorsnämnden (2015).

    Result and conclusion: The result indicates that the auditor's personality traits may explain preference for structure and judgment. The study presents a positive significant relationship between auditors that are open and judgment-related tasks, and a negative significant relationship with structured tasks. A positive significant relationship exists between auditors that are conscientious and structured and judgment-related tasks. The study shows that the term comfort is an alternative way to measure preference.

    Contribution: The study provides a new perspective in the structure and judgment dilemma. The study also gives recruiters within audit companies an understanding in how the personality affects the work of auditors.

  • 15.
    Schnell, Felizia
    Linköping University, Department of Computer and Information Science. Linköping University, Faculty of Arts and Sciences.
    Performance on pattern recogniton declins with age while performance on pattern separation does not2015Independent thesis Basic level (degree of Bachelor), 12 credits / 18 HE creditsStudent thesis
    Abstract [en]

    This report aims to explore if pattern recognition and pattern separation tasks performance degenerate with age. This as there are studies by Brickman et al. (2014) that suggest that these tasks are being performed by the hippocampus in particular, the dentate gyrus part. The tasks used in this report were replicated from a study in which it was assumed that they tested this parts. As both the hippocampus and the dentate gyrus supposedly degenerate with age, the tasks tested this degeneration by looking if the participant’s performance on the tasks changed with age. The performance on the pattern separation task did not change with age while the pattern recognition task did. This preservation of pattern separation might mean that the pattern separation tasks does not measure the dentate gyrus. It might also mean that the hippocampus might not degenerate as previously assumed or that the pattern separation task really test the hippocampus.

  • 16.
    Nilsson, Anna
    et al.
    Linköping University, Department of Clinical and Experimental Medicine. Linköping University, Faculty of Health Sciences.
    Sirén, Ellen
    Linköping University, Department of Clinical and Experimental Medicine. Linköping University, Faculty of Health Sciences.
    Sambandet mellan Theory of Mind, språkliga förmågor och exekutiva funktioner hos barn i treårsåldern2015Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    A childs’ first five years are characterized by an extensive development of language abilities and executive functions. These are skills that have demonstrated large impact on how children develop their understanding of their own and others’ thoughts, that is, their Theory of Mind. Within contemporary research, a central question has been to investigate how these abilities correlate at different stages of age. 

    The aim of the present study was to examine the relationship between Theory of Mind, language and executive functions in typically developed three-year-old children. A central part in this study was also to assess whether differences in performance between boys and girls occurred and also if the number of younger and/or older siblings, socioeconomic status, and adult contact did affect the children’s performance. 

    A total of 30 children with typical development participated, of whom 16 were girls and 14 were boys. Age-appropriate test materials were used to examine, Theory of Mind, grammatical ability, semantic ability, cognitive flexibility, working memory, and phonetic discrimination. The demographic information was based on a questionnaire that parents of the participating children had to answer. 

    The result of this study indicates that the three-year child's ability to manage and understand tasks that assess Theory of mind seems to covariate with both grammatical skills and cognitive flexibility. A Correlation was also found between grammatical skills and cognitive flexibility, which indicate that language ability, executive functions and ToM have a strong dependent relationship. 

    The present study confirms that all abilities are more or less integrated at different ages and the correlations indicate that certain abilities in language, ToM and executive functions are de-veloped in interaction with each other. Specifically, the executive component cognitive flexibility and the grammatical ability are important abilities for three-year children’s ToM.

  • 17.
    Anskär, Eva
    Linköping University, Department of Medical and Health Sciences. Linköping University, Faculty of Health Sciences.
    Distriktssköterskors och sjuksköterskors upplevelse av arbetsmiljö i primärvård och en kartläggning av arbetstidens innehåll2015Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Introduction:

    A good work environment and good resources among district nurses’ and general nurses’ are important in the provision of good nursing care. For patient security it is also very important that resources and time are used in an appropriate way. A lot of time is spent on non-core activity, for example administration takes more and more time, which can result in feelings of stress.

    Aim:

    The aim was to describe how district nurses’ and nurses’ in primary care perceived their work environment, how their worktime content was distributed and if there was some connection between perceived work environment and the distribution of work time.

    Methods:

    A mapping of the content of the work was made in two parts. The first part was a survey where the respondents were asked about their perceived work environment, their work tasks and if they perceived stress. The second part was a time reporting, by self-reporting on a preprinted form.

    Results:

    Almost half of the district nurses’ and general nurses’ said that they seldom had to perform tasks which they wondered if were really necessary. More than 40 percent perceived that they sometimes had work tasks which placed demands beyond what could be expected of them. About 40 percent perceived that they often had enough time to do their work tasks and 30 percent perceived it sometimes. Stress was perceived some of the time by almost 40 percent. Most of the nurses’ thought the quality of care was good. The proportion of direct patient care was approximately 45 percent and indirect patient work approximately 24 percent. The proportion of other work varied with the proportion of quantitative requirements: there was enough time.

    Conclusion:

    Nearly half of the district nurses’ and the general nurses’ perceived that they seldom had work tasks they felt doubtful about and that they sometimes had work tasks which required more than could be expected of them. About two thirds said that they often or sometimes had enough time to do their work tasks. Nearly half perceived stress a part of the working time. The proportion of direct patient care was barely half of the working time.

  • 18.
    Nordgren, Madeleine
    Linköping University, Department for Studies of Social Change and Culture. Linköping University, Faculty of Arts and Sciences.
    Förändringar är till det bättre... eller?: En intervjustudie om kommunikationsförändringar på ett teknikkonsultföretag -ur ett ledarperspektiv2014Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    To lead is to communicate, a main part of the leadership. 80 % of leaders working tasks involve communication of some kind. The ambition of this study is to analyze how four leaders of an international technique consulting company experience and handle community and technical development during their professional courses. The leaders have a various experience of leadership which adds depth and width to this study. To perform the study qualitative method has been used in the form of personal interviews.

    The result indicates that change is not always beneficial in every aspect of communication. To manage the quantity of information and communication we must learn how to sort. However these communication channels are an important part of being able to connect within and without the organization. When and how to use them are keywords in order to being able to cope with the flow of information.

  • 19.
    Blomqvist, Suzanne
    Linköping University, Department of Behavioural Sciences and Learning. Linköping University, Faculty of Educational Sciences.
    Med förenade krafter: Arbetsmöten i human servicesektorn2007Report (Other academic)
    Abstract [en]

    In any organization people recurrently meet to exchange information, and to make decisions on how to organize their work in order to fulfil their tasks. Different kinds of work meetings take place in all sectors of working life, also in what is known as the human service sector.

    The aim if this study was to investigate what research on work meetings in human service sector highlights as important influencing factors on how work is performed during meetings. The study is based on research performed on authentic work groups only.

    To make it possible to meet different the needs of the clients most work groups in human service sector are Multiprofessional ones. To be able to make use of the professional diversity in the work group during work meetings on important influencing factor is how influence is distributed between group members, influence over how discussions are held and how decisions are made. The influence of group members seems to be effected by what status an individual holds in the group, level of education and by how much someone talks during the meeting. The influence of a group member is also influenced by the size of the group, and by what method is used in the group to solve differences of opinion.

    Another important influencing factors that is highlighted in literature is the nature of communication during group meetings, especially concerning the possibility to integrate different perspectives and to have a shared vocabulary when discussing clients.

    If the meeting is or is not conducted by a systematic structure to guide discussion and decision-making is another important influencing factor. The influence of well- known group phenomena such as power of the majority, the value of minority dissent, group polarization, and the group think syndrome is also given attention in research literature. Attention is also given to the effects of emotional, subconscious needs of group members on the work performed during work meetings.

    To enhance performance during work meetings in the human service sector one might consider giving attention to the above-described aspects of work meetings. Influence more equally distributed between group members might be accomplished by using a systematic structure guiding discussion and decision-making. Small size groups and a collaborative way to solve differences of opinion might also contribute to an equal distribution of influence during work meetings.

    To facilitate communication during work meetings one might consider using consulteecentered consultation to help the work group reflect on how language is used during meetings.  To reflect on how work is performed during work meetings might also enable a work group to become aware of how emotional, subconscious needs might influence what is accomplished. Innehållsförteckning

  • 20.
    Lemoine, Ida
    et al.
    Linköping University, Department of Management and Engineering, Economics. Linköping University, Faculty of Arts and Sciences.
    Fredin, Peter
    Linköping University, Department of Management and Engineering, Economics. Linköping University, Faculty of Arts and Sciences.
    How Does Ego Depletion Affect Moral Judgments and Pro-social Decisions?2013Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    BACKGROUND: Today’s societal changes, including high rate of change and increasing information flows, are increasing the demand on the individual mental capacity. It becomes increasingly difficult to analytically process all the different dilemmas and everyday decisions as individuals have a limited mental capacity available to make these decisions. Thus, it has been suggested that ego-depleted relies more heavily on intuition, which is less burdensome, when making decision. However little is known about to what extent intuitive decisions differ from analytic. Are ego-depleted individuals more or less likely to maximize outcome in moral dilemmas involving conflicting values? Do ego depleted individuals become more or less willing to cooperate? Do ego depleted individuals become more or less altruistic? Is our intuition more or less in accordance with Homo Economicus?AIM: Starting from a Dual Process perspective on decision-making the aim of this study is to examine how ego depletion affects moral judgment and pro-social decisions.METHOD: A laboratory experiment involving 115 subjects, using real monetary incentives, was conducted among students at Linköping University. Subjects were randomized into one of two treatments. Everything was identical across treatments except for the initial ego-depletion manipulation. Using a standard paradigm for ego-depletion subjects in treatment 1 were put under high cognitive load while subjects in treatment two were put under low cognitive load. Subjects faced 16 questions divided into four different decision tasks: Moral dilemmas, Public Goods game, two types of Dictator Game where the type of sacrifice subjects could make in order to contribute money to charity was varied.RESULTS: Subjects in the high cognitive load treatment made fewer consequentialists moral judgments compared to other subjects (p = 0.075). The effect is especially strong when looking only at high-conflict dilemmas such as Crying Baby. No difference between treatments was found for the public goods games. In the dictator game involving monetary sacrifice subjects donated less money to charity when put under high cognitive load. However the finding was not significant (p = 0.292). No difference was found in the dictator game involving effort as personal sacrifice since almost everyone chooses to donate to charity.CONCLUSION: According to The Dual Process perspective this essay shows that intuitive thinking does not evidently lead to that they makes decision that more or less is in accordance with Homo Economicus. The connection between ego depletion and pro-social decisions is more complex. Further research needs to investigate which different mental shortcuts that individuals uses in various types of pro-social decisions and why intuitive and analytical decision-making differ between different decisions. Further research within the area can identify potential mechanisms and policies that can support individuals’ capacity to make decisions in accordance with their own and society’s preferences.

  • 21.
    Janzén, Johan
    Linköping University, Department of Computer and Information Science. Linköping University, The Institute of Technology.
    Evaluation of Energy-Optimizing Scheduling Algorithms for Streaming Computations on Massively Parallel Multicore Architectures2014Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    This thesis describes an environment to evaluate and compare static schedulers for real pipelined streaming applications on massively parallel architectures, such as Intel Single chip Cloud Computer (SCC), Adapteva Epiphany, and Tilera TILE-Gx series. The framework allows performance comparison of schedulers in their execution time, or the energy usage of static schedules with energy models and measurements on real platform.

    This thesis focuses on the implementation of a framework evaluating the energy consumption of such streaming applications on the SCC. The framework can run streaming applications, built as task collections, with static schedules including dynamic frequency scaling. Streams are handled by the framework with FIFO buffers, connected between tasks.

    We evaluate the framework by considering a pipelined mergesort implementation with different static schedules. The runtime is compared with the runtime of a previously published task based optimized mergesort implementation. The results show how much overhead the framework adds on to the streaming application. As a demonstration of the energy measuring capabilities, we schedule and analyze a Fast Fourier Transform application, and discuss the results.

    Future work may include quantitative comparative studies of a range of different static schedulers. This has, to our knowledge, not been done previously.

  • 22.
    Rejdvik, Hanna
    Linköping University, Department of Management and Engineering, Carl Malmsten - furniture studies. Linköping University, The Institute of Technology.
    Historieberättande utifrån en möbel: Ett pedagogiskt material för Skansens tapetserarverkstad2014Independent thesis Basic level (degree of Bachelor), 10,5 credits / 16 HE creditsStudent thesis
    Abstract [en]

    This report presents the process and results of my bachelor thesis at Carl Malmsten- Furniture Studies. Upholstery is a broad and comprehensive field which has been made clear during three years of education.In addition to the craft as a practical work, insight into a far more complex and nuanced picture of the field has asserted itself. This report presents the work of developing a basis for the pedagogical tasks carried out in upholstery workshop at Skansen. The work has resulted in storytelling about the current time in the workshop, the late 19th century.

    The storytelling is based on a piece of furniture which I have found most relevent in reference to the information and stories that are essential for its time and that should be noticed. The focus is primarily on highlighting the upholsterer and her or his importance to the design of upholstered furniture. The techniques, materials and trends that were current in the second half of the 19th century has been highlighted and deployed in the context that connects them with society and the surrounding world. This work has also resulted in an outline of a piece of furniture that will serve as the basis for storytelling in which all steps of a production process can be demonstrated.

    In my thesis, I want to show aspects of the craft beyond the purely practical and investigate in what way the craft can be used as an aid in storytelling and the spreading of knowledge at Skansen.

  • 23.
    Kvarnryd, Erica
    et al.
    Linköping University, Department of Clinical and Experimental Medicine. Linköping University, Faculty of Health Sciences.
    Morén, Emilia
    Linköping University, Department of Clinical and Experimental Medicine. Linköping University, Faculty of Health Sciences.
    Matematiska färdigheter hos elever med lässvårigheter i årskurs 42014Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Reading difficulties is the most common learning difficulty in the western world and it is common that people with reading disabilities also exhibit arithmetic difficulties. Different theories about the cause of the relationship exists, one theory describes the importance of good phonological ability in reading as well as in arithmetic, while another theory describes the importance of a reliable number system and that only a subgroup of students with reading disabilities also have difficulties with arithmetic. The purpose of this study is to investigate how students with reading difficulties (RD), without any known mathematical difficulties, perform on mathematical tasks relative to a control group. The study was theoretically grounded on the Triple code model (Dehaene, 1992), which is a model for numerical information processing that describes how various numerical and arithmetic tasks are processed through three distinct representation systems in the brain, a verbal and a visual representation system and a quantity system. Reading skills, phonological skills, arithmetic skills and number processing skills were examined in 61 students through a variety of tests. After examination of reading ability, the participants were split into two groups, students with RD and a control group. Statistical comparisons were calculated by one-way analysis of variance between the two groups on each task, and for some tasks one-way analysis of covariance were used. The results provided partial support for the present hypotheses. The main findings showed that students with RD have difficulties within the verbal and visual representation system but exhibit an intact quantity system. Within the verbal representation system, students with RD performed significantly worse in retrieval of arithmetic facts (addition, subtraction and multiplication), they retrieved fewer established answers from long-term memory on all of the three arithmetic operations compared to the control group. The students with RD also made more errors regarding subtraction and multiplication and within the visual representation system they had significantly fewer answers that were correct on written arithmetic calculation and was significantly slower in symbolic number comparison, compared with the control group. It is discussed whether a connection difficulty, namely difficulties in linking a particular symbol with a semantic content, is the cause of the exhibited arithmetic difficulties in students with RD.

  • 24.
    Rönmark, Lovisa
    Linköping University, Department of Computer and Information Science. Linköping University, Faculty of Arts and Sciences.
    The Never Ending Shower: planning ability, intellectual disability and cognitive artifacts2014Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Persons with intellectual disability have been found to perform more poorly on tasks, demanding the use of executive functions like planning, than their peers. This study investigated difficulties with planning, and how problems with planning ability can be supported by using cognitive artifacts to help performance on activities in everyday life, for adolescents with intellectual disability. The approach taken is one of situated cognition, where the natural environment plays a big role, to see if the same difficulties arise as results from traditional research has shown. The traditional view focuses a lot on executive functions, and experimental studies in controlled settings and often suggests interventions and practice of certain functions to get better abilities. Another way is to focus on the use of cognitive artifact, to support problematic abilities, and to get a well-rounded understanding of how the problems actually appear in everyday life, the alternative view of situated cognition is a way to go. The data was gathered through interviews and surveys with the individual’s parents and analyzed through categorization and a repeated measures ANOVA, with a bonferroni corrected post hoc test. Results show several problematic areas, and that there is a difference in how problematic these areas are estimated to be when it comes to planning in everyday situations. It is discussed how the natural contexts helps knowing what planning really means for the group, as well as how it can help finding properties in cognitive artifacts that can help raise the level of independence in planning related tasks.

  • 25.
    Sjöström, Dick
    Linköping University, Department of Physics, Chemistry and Biology. Linköping University, The Institute of Technology.
    Proteomic study of microbiopsies from women with trapezius muscle pain and from healthy women2013Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Trapezius myalgia is a pain condition that usually develops in people with repetitive and stressful work tasks, which can lead to chronic widespread pain (CWP). This work compares protein expression levels in healthy women with those in women who have chronic widespread pain, including pain in the trapezius muscle, by using a proteomic approach.  Twodimensional gel electrophoresis and silver staining with a subsequent digital quantification of protein spots was used to detect spots which had significantly higher protein levels in either group. Preparative gels were made and stained with SYPRO Ruby, the protein spots that were significantly different between the groups were picked from the SYPRO Ruby gels and identified by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry, MALDI-TOF.

    The optical density of seven protein spots were significantly decreased in the trapezius muscle of the CWP subjects; however the standard deviations were notably high. Five of the seven proteins could be identified as desmin, creatine kinase B-type, serum albumin, heat shock protein beta-1 and slow skeletal muscle troponin T. Apart from serum albumin, all these proteins can possibly be responsible for pain in the trapezius muscle in CWP.

    In conclusion, this study demonstrates that two-dimensional gel electrophoresis in combination with mass spectrometry is a powerful tool to identify potential biomarkers of musculoskeletal pain in subjects with CWP. The results may provide new insights into the mechanisms and patho-physiology of trapezius myalgia.

  • 26.
    Gustavsson, Albin
    Linköping University, Department of Computer and Information Science. Linköping University, The Institute of Technology.
    Vad gör innehåll bra i sociala medier?: En studie med framtagna rekommendationer för hemsidan Wallyfy2014Independent thesis Basic level (degree of Bachelor), 10,5 credits / 16 HE creditsStudent thesis
    Abstract [en]

    Wallyfy is planned to be a social webmagazine with a focus on good content, with a quality check and moderation of the published content. The author of the study provides Wallyfy with thoughts and ideas about the website content and functionality. The main problem of the study was to explore what makes good content in social media for the potential users of Wallyfy, also using this insight to provide Wallyfy with directions for making decisions regarding both functionality and content.

     

    The theory of the study is being used as a starting point for understanding the phenomenom social media and to easier grasp the problem. The method of the study is based on user- centered thinking in design, where the author seeks to understand the participant’s emotions, values and dreams. Design probes (tasks for the participants) have been used to aid the first steps of the quality data collection, enabling the 5 participants of the study to be a part of the idea generation and to familiarize them with social media. The participants then attended a workshop based on the quality data from the design probes. Further quality data were then derived from the discussion and the creative participation in the workshop.

     

    The relevant data parts were then compiled and orginanised to be presented as the data collection result in the study. The main theme from the data was that the participants valued content more if a personal connection between the user and the content could be made. From a discussion of the data and theory, recommendations and requirements regarding content and functionally for Wallyfy was produced.

  • 27.
    Karlsson, Anna
    et al.
    Linköping University, Department of Clinical and Experimental Medicine. Linköping University, Faculty of Health Sciences.
    Nikkanen Johansson, Ronja
    Linköping University, Department of Clinical and Experimental Medicine. Linköping University, Faculty of Health Sciences.
    Inre tal hos barn med utvecklingsstörning: Finns det ett samband mellan inre tal och storleken på ordförråd?2014Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Background: When children are faced by a cognitive challenge they often speak out loud to themselves. This is a common strategy in five year old children and is called private speech, which gradually, is developed into a silent form called inner speech. Inner speech is essential in several cognitive tasks including planning and problem solving, and is also involved in the working memory, particularly in the phonological loop. Children with intellectual disabilities have a limitation in the capacity of the working memory and in the phonological loop. The capacity of the working memory and the development of the phonological loop have a big importance in the acquisition of the vocabulary, therefore a limitation or delay in these skills lead to a delay in the vocabulary.

    Aim: The purpose of this study was to investigate the inner speech in children with intellectual disabilities and to investigate the correlation between the inner speech and the dimension of the active and passive vocabulary. 

    Method: 28 children participated. The target group consisted of 14 children with mild to moderate intellectual disabilities aged 8:4-16:0 years. The control group consisted of 14 children with typical development aged 4:8-8:6 years. The two groups were matched according to their test results on Raven's Colored Progressive Matrices. The active vocabulary was tested with Boston Naming Test and the passive vocabulary was examined with the Peabody Picture Vocabulary Test. To examine the inner speech and memory strategies the European Picture Span Study was used.

    Results: The result showed that the children in the control group have a bigger passive and active vocabulary compared to the target group and that there is a correlation between having a big vocabulary and using a more mature strategy in the control group. The target group use phonological strategies to a smaller extent than the control group, but they seem to have developed a consciousness regarding their use of strategies. The analysis also shows a significant correlation between span level and the size of the passive vocabulary in the target group, whilst there is a significant correlation between the span level and the active vocabulary in the control group.

  • 28.
    Winnerhall, Louise
    Linköping University, Department of Physics, Chemistry and Biology, Biology. Linköping University, The Institute of Technology.
    The effect of breed selection on interpreting human directed cues in the domestic dog2014Independent thesis Basic level (degree of Bachelor), 180 HE creditsStudent thesis
    Abstract [en]

    During the course of time, artificial selection has given rise to a great diversity among today's dogs. Humans and dogs have evolved side by side and dogs have come to understand human body language relatively well. This study investigates whether selection pressure and domestication could reveal differences in dogs’ skill to interpret human directional cues, such as distal pointing. In this study, 46 pet dogs were tested from 27 breeds and 6 crossbreeds for performance in the two-way object choice task. Breeds that are selected to work with eye contact of humans were compared with breeds that are selected to work more independently. Dogs of different skull shape were also compared, as well as age, sex and previous training on similar tasks. No significant differences in performance were found between dogs of various age, sex or skull shape. There was a tendency for significant difference in performance if the dog had been previously trained on similar tasks. When dogs that made 100% one-sided choices were excluded, a tendency appeared for there to be a difference between the cooperative worker breeds compared to the other breeds for the time it took for dogs to make a choice. There is a correlation between the number of correct choices made and the latency for the dogs from being release to making a choice (choice latency). All groups of dogs, regardless of my categorization, performed above chance level, showing that dogs have a general ability to follow, and understand, human distal pointing.

  • 29.
    Rönmark, Lovisa
    Linköping University, Department of Computer and Information Science. Linköping University, Faculty of Arts and Sciences.
    The Never Ending Shower: planning ability, intellectual disability and cognitive artifacts2014Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Persons with intellectual disability have been found to perform more poorly on tasks, demanding the use of executive functions like planning, than their peers. This study investigated difficulties with planning, and how problems with planning ability can be supported by using cognitive artifacts to help performance on activities in everyday life, for adolescents with intellectual disability. The approach taken is one of situated cognition, where the natural environment plays a big role, to see if the same difficulties arise as results from traditional research has shown. The traditional view focuses a lot on executive functions, and experimental studies in controlled settings and often suggests interventions and practice of certain functions to get better abilities. Another way is to focus on the use of cognitive artifact, to support problematic abilities, and to get a well-rounded understanding of how the problems actually appear in everyday life, the alternative view of situated cognition is a way to go. The data was gathered through interviews and surveys with the individual’s parents and analyzed through categorization and a repeated measures ANOVA, with a bonferroni corrected post hoc test. Results show several problematic areas, and that there is a difference in how problematic these areas are estimated to be when it comes to planning in everyday situations. It is discussed how the natural contexts helps knowing what planning really means for the group, as well as how it can help finding properties in cognitive artifacts that can help raise the level of independence in planning related tasks.

  • 30.
    Le, Jenny
    et al.
    Linköping University, Department of Clinical and Experimental Medicine. Linköping University, Faculty of Health Sciences.
    Wuotila Isaksson, Jakob
    Linköping University, Department of Clinical and Experimental Medicine. Linköping University, Faculty of Health Sciences.
    En samtalsanalytisk studie av interaktion under behandling i afasigrupp2014Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Aphasia is a language and communication impairment, which affects interaction with other individuals. The purpose of the present study is to investigate and describe interaction between people with aphasia and between the leaders and the participants in an aphasia group during treatment sessions. Three aphasia treatment groups, with a combined total of eleven aphasia group participants and four aphasia group leaders participated in the present study. Data was collected through audio and video recording. The recordings were transcribed and analyzed according to principles from Conversation Analysis. In addition to the video and audio recording, the participants with aphasia were also tested with parts of the Swedish neurolinguistic test A-ning.

    The results of the present study demonstrated that the execution of treatment tasks can change in interaction during group treatment sessions. Both aphasia group participants and aphasia group leaders were shown to have an influence on changing the characteristics of treatment tasks. Previous research has shown that interaction in intervention usually is institutional by nature. However, the interaction during group treatment in the present study was occasionally deviating from this system. The results of the present study also show that aphasia group leaders use face work more frequently in intervention, compared to the aphasia group participants. Strategies, which strengthen communication and language ability in persons with aphasia during interaction, are used by leaders as well as by participants in aphasia treatment groups. The present study has made a description of how interaction may appear in therapy in aphasia treatment groups. However, there is a continuous need to study interaction during aphasia treatment groups in order to identify strategies that may further facilitate interaction between all the participants in the group.

  • 31.
    Andersson, Tim
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Bluetooth Low Energy and Smartphones for Proximity-Based Automatic Door Locks2014Independent thesis Basic level (degree of Bachelor), 10,5 credits / 16 HE creditsStudent thesis
    Abstract [en]

    Bluetooth Low Energy is becoming increasingly popular in mobile applications due to the possibility of using it for proximity data. Proximity can be estimated by measuring the strength of the Bluetooth signal, and actions can then be performed based on a user's proximity to a certain location or object. One of the most interesting applications of proximity information is automating common tasks; this paper evaluates Bluetooth Low Energy in the context of using smartphones to automatically unlock a door when a user approaches the door. Measurements were performed to determine signal strength reliability, energy consumption and connection latency. The results show that Bluetooth Low Energy is a suitable technology for proximity-based door locks despite the large variance in signal strength.

  • 32.
    Säljö, Roger
    et al.
    Linköping University, The Tema Institute, Department of Communications Studies. Linköping University, Faculty of Arts and Sciences.
    Wyndhamn, Jan
    Linköping University, Department of Behavioural Sciences. Linköping University, Faculty of Arts and Sciences.
    Cognitive Operations and Educational Framing of Tasks: School as a Context for Arithmetic Thought1988In: Scandinavian Journal of Educational Research, ISSN 0031-3831, E-ISSN 1470-1170, Vol. 32, no 2, 61-71 p.Article in journal (Refereed)
    Abstract [en]

    Cognitive Operations and Educational Framing of Tasks. School as a Context for Arithmetic Thought. Scandinavian Journal of Educational Research 32, 61‐71. The purpose of the present study is to contribute to the understanding of the contextual determination of cognitive activities. In a naturalistic experiment in a primary school setting it is shown how performance at group level on an elementary arithmetic task is influenced by the immediate context in which this problem is presented. Differences in performance between groups at various achievement levels in mathematics are amplified by corresponding differences in discovering and utilizing analogies between problems as heuristic aids. This latter kind of difference reflects – it is argued – variations in abilities in analysing and deciphering cognitive tasks at a linguistic and meta‐communicative level rather than in mastering the specific algorithmic tools. It is also argued that the functional meaning of the task as pedagogical praxis may differ between contexts.

  • 33.
    Säljö, Roger
    et al.
    Linköping University, The Tema Institute, Department of Communications Studies. Linköping University, Faculty of Arts and Sciences.
    Wyndhamn, Jan
    Linköping University, Department of Behavioural Sciences. Linköping University, Faculty of Arts and Sciences.
    The Forrnal Setting as Contextfor Cognitive Activities: An Ernpirical Study of Arithmetic Operations under Conflicting Premisses for Comrnunication1987In: European Journal of Psychology of Education, ISSN 0256-2928, E-ISSN 1878-5174, Vol. 2, no 3, 233-245 p.Article in journal (Refereed)
    Abstract [en]

    The general concern of the present article is to contribute to an understanding of the contextual determination of cognitive activities. More specifically, the focus of the empirical research reported has been to study how pupils define and deal with cognitive tasks in situations that are recognised as pedagogical in character. Within the context of their everyday mathematics teaching, 206 twelve year old primary school pupils were given work sheets containing elementary arithmetic problems. The experimental treatment consisted of introducing (through headings and instructions) pedagogical definitions of problems that were in conflict with the nature of the problems themselves. The results indicate that the predefinitions of cognitive activities typical of educational contexts have a strong impact on the way problems are dealt with. Clear differences could be discerned between groups at different achievement levels in the extent to which the cues present in pedagogical contexts were used in defining the problem. A crucial aspect of what are conventionally conceived as differences in mathematical ability seems, judging from the present results, to have more to do with the capacity to decipher ambiguous communicative situations than with the mastery of a mathematical algorithm per se.

  • 34.
    Juarez, Maribel
    Linköping University, Department of Management and Engineering. Linköping University, The Institute of Technology.
    Structuring Lean Thinking in the Radio Access Network Area2014Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Customer’ demands, higher quality, faster and safer deliveries are some reasons for unexpected changes in the organizations. It has incremented complexity and cost. Lean production is known as a methodology to make improvements in manufacturing areas such as mentioned above and it is focused on the process of a product. But, Lean Thinking is a management strategy to make improvements in the process of a product or service and it is based on five principles. It allows having the process close to the customer eliminates tasks that do not add value and produces with low costs and high quality. However, there are some concepts ambiguous to be applied effectively to the Radio Access Network area in wireless telecom industry as a service company. Radio Access Network area transmits Radio frequency (RF) signals from the Radio Base Station (RBS) to the user equipment (UE) or mobile phone and is an area to present dynamic changes by high technology innovation. Therefore, the aim of this study is to identify improvements through for the Radio Access Network area.

    This thesis was structured to know how the five Lean principles and Lean tools can be used in the Radio Access Network area and the benefits that it could have. The study was realized through a qualitative research and five semi-structured interviews. A manager, team leaders and engineers of wireless telecom industry vendor and operators were the participants for this study.

    The results of major impact for Lean principles and Lean tools were VSM and Flow principles and Waste as Lean tool found for the Radio Access Network area. Project definition, resource planning and VOC were some improvements revealed for VSM principle. Furthermore, faster and optimal tools, training for engineers, knowledge in software and employee empowerment were some improvements found for Flow principle. Waste Lean tool showed some improvements found on customer’s focus, clear communication and waiting time reduction. Cross functional teams were other aspects that provided quality performance in the projects.

    This study seemingly is a good start for making decisions and for the high technology innovation and dynamic changes for telecom service companies.

  • 35.
    Dalborg, Per
    et al.
    Linköping University, Department of Management and Engineering. Linköping University, The Institute of Technology.
    Henriksson, Linnea
    Linköping University, Department of Management and Engineering. Linköping University, The Institute of Technology.
    Outsourcing R&D in the Defense Industry: Developing Strategies for Collaborating with Indian Suppliers2014Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    An important step in making an impact on the Indian market, Saab India Technology Center, SITC, was inaugurated on October 21, 2011. SITC is a collaboration with the Indian company Tech Mahindra, and supplies all of Saab’s Business Areas with skilled engineers. The growing interest for SITC has spread to TDH, the department for Human Machine Interface and Avionics. Possible benefits, but also challenges, of utilizing SITC have been discussed. This thesis attempts to address challenges and maximize benefits for TDH by exploring how a Swedish R&D organization in the defense industry, that has a tradition of performing most work in-house, can initiate outsourcing to a supplier in India. In order to do this, a literature study was performed. Since gaps in the literature regarding outsourcing in the defense industry were identified, a combination of a descriptive and exploratory research approach was chosen. Following the literature study, interviews were conducted to collect experience from working with external partners at TDH, experience from working with SITC, experience from other companies that have outsourced R&D to India and experience of working with Saab from SITC. Empirical data was also gathered via informal meetings and observations during the researchers’ 5 month stay at TDH in Sweden and SITC in India.

    The outcome of this study shows that drivers and risks for outsourcing R&D, as well as the characteristics of the outsourcer and the supplier, will influence how the strategy for initiating outsourcing should be built. TDH’s main drivers in deciding to use SITC are mainly cost reduction goals, the possibility to access the Indian defense market and the opportunity to gain knowledge from collaborating with international suppliers. The type of risk that is most urgent for TDH is operational risk. Risks in this category, like overestimating cost reduction and risks associated with not understanding cultural differences are all highly relevant for any organization with limited experience in outsourcing.

    Strategy wise, the main finding is that an R&D organization in the defense industry will benefit from working in a more collaborative manner than traditional outsourcing entails. In an R&D organization, tasks are often complex and highly integrated with each other which, combined with a limited level of outsourcing experience, requires a tighter collaboration. With a high level of involvement from the outsourcer, problems can be detected early and insufficient requirements can be handled. Close collaboration also enhances knowledge sharing, which is important to ensure that the goal of gaining knowledge from international collaboration is achieved. Furthermore, organizational acceptance can be improved by a collaboration that enables close contact between outsourcer and supplier. Improving acceptance in the organization for collaborating with the supplier should be prioritized in order to strengthen the positive effects of outsourcing.

  • 36.
    Bäcklund, Henrik
    et al.
    Linköping University, Department of Electrical Engineering, Information Coding. Linköping University, The Institute of Technology.
    Neijman, Niklas
    Linköping University, Department of Electrical Engineering, Information Coding. Linköping University, The Institute of Technology.
    Automatic Mesh Decomposition for Real-time Collision Detection2014Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Intersections tests between meshes in physics engines are time consuming and computationalheavy tasks. In order to speed up these intersection tests, each mesh can be decomposedinto several smaller convex hulls where the intersection test between each pair of these smallerhulls becomes more computationally efficient.

    The decomposition of meshes within the game industry is today performed by digital artistsand is considered a boring and time consuming task. Hence, the focus of this master thesislies in automatically decompose a mesh into several smaller convex hulls and to approximatethese decomposed pieces with bounding volumes of different complexity. These boundingvolumes together represents a collision mesh that is fully usable in modern games.

  • 37.
    Isaksson, Fredrik
    et al.
    Linköping University, Department of Clinical and Experimental Medicine. Linköping University, Faculty of Health Sciences.
    Larsson, Elias
    Linköping University, Department of Clinical and Experimental Medicine. Linköping University, Faculty of Health Sciences.
    Röst och hörselnedsättning: Akustisk analys av röst hos sju hörapparatsanvändare2014Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    A number of studies have been made to examine several aspects of voice production in individuals with different types of hearing impairments. Most of the studies were made to explore the impact that hearing aids have for people with severe or congenital hearing impairment. So far it has been confirmed that there are changes regarding voice production in these individuals. A group that has not been investigated regarding voice production to a larger extent are hearing aid users with an acquired hearing impairment. In the present study the voice production of seven individuals, four men and three women, with a moderate acquired hearing impairment is examined. The individuals had an age span ranging from 55-71 years and had used hearing-aids for one year at the most. The participants were recorded as they completed three different tasks; reading aloud, spontaneous speech and production of sustained vowels. These tasks were performed twice; with and without hearing aids. An acoustic analysis of the recordings was performed in order to examine possible changes in mean fundamental frequency and vocal effort. Analysis on an individual level shows that throughout the different tasks, no participant demonstrated constant, audible differences regarding both fundamental frequency and vocal effort. However there were noticeable changes for a few participants in some of the tasks. Since the differences for most of the participants were negligible and inconsistent, no impact of the hearing aids or compensatory strategies was seen.

  • 38.
    Chen, Yi-Ching
    Linköping University, Department of Computer and Information Science, Software and Systems. Linköping University, The Institute of Technology.
    Co-design of Fault-Tolerant Systems with Imperfect Fault Detection2014Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    In recent decades, transient faults have become a critical issue in modernelectronic devices. Therefore, many fault-tolerant techniques have been proposedto increase system reliability, such as active redundancy, which can beimplemented in both space and time dimensions. The main challenge of activeredundancy is to introduce the minimal overhead of redundancy and to schedulethe tasks. In many pervious works, perfect fault detectors are assumed to simplifythe problem. However, the induced resource and time overheads of suchfault detectors make them impractical to be implemented. In order to tacklethe problem, an alternative approach was proposed based on imperfect faultdetectors.

    So far, only software implementation is studied for the proposed imperfectfault detection approach. In this thesis, we take hardware-acceleration intoconsideration. Field-programmable gate array (FPGA) is used to accommodatetasks in hardware. In order to utilize the FPGA resources efficiently, themapping and the selection of fault detectors for each task replica have to be carefullydecided. In this work, we present two optimization approaches consideringtwo FPGA technologies, namely, statically reconfigurable FPGA and dynamicallyreconfigurable FPGA respectively. Both approaches are evaluated andcompared with the proposed software-only approach by extensive experiments.

  • 39.
    Jismyr, Michelle
    Linköping University, Faculty of Arts and Sciences. Linköping University, Department of Culture and Communication, Arts and Humanities.
    Att bemästra sin vardag: Om den psykiska ohälsans inverkan på det dagliga livet2014Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    All people have their own routines, habits, and commitments to deal with on a daily basis. In this essay, I examine how four individuals’ everyday lives are shaped and influenced by their mental illnesses. They describe how the primary tasks of their everyday struggles are to master their mental health by controlling their mood and their feelings. To succeed with this, they use different aiding methods, where medications are the most important ones. The medications are essential in helping the informants to handle their everyday lives, but the mental illnesses also affect other aspects such as work, finance, self-image, and how they are perceived by others. 

  • 40.
    Sjöstrand, Magnus
    Linköping University, Department of Computer and Information Science, Software and Systems. Linköping University, The Institute of Technology.
    Graphical Cross-Reference Browser for the OMDev Environment2013Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    With todays software development we see huge structures of objects and relationships beingbuilt up. How these are constructed and designed is important to how we make robust andflexible architectures. Developers have to constantly have this overview in mind whenworking with the whole system to prepare for potential changes later on. One object may bereplaced by another one or removed completely; this is when the relationship going to andfrom them comes into picture. Many decisions on what to change or what to remove from thisstructure needs some way of proving that this wont have any side-effects on anything else. Adeveloper could make such a decision by scanning through all files and build a mindset of allthe dependencies between the objects to make sure that something like this would be okay.This report evaluates the possibilities of making a tool that can ease this task in order togain a better overview of all the dependencies going through the system. By observingprojects that are built for other similar tasks and how they haven chosen their implementationwe can build a tool that will inspect the objects specifically to Modelica code. This report alsodiscuss how we can elaborate on the number of features in order to gain more interactivityand make a more user-friendly experience to the end users.The results of our implementation will show a fully functional and optimized productinside the software Eclipse. This product provides all required information by extending uponexisting functionalities of Modelica to get the perspective and access to data that we need fora complete analyze. This report will also show how we effectively make use of graphicallibraries to provide interactivity, bonds, layout orderings and translation from data to visualsobjects. All of these together are ingredients to a tool in which a user can gain a fast responseand move around quickly in his model-structure. In the end we can see that our implementation can reference most things related todependencies in an object-oriented language and explain to the user how these relationshipsplay into our object-structure or where their sources are and where they are pointing.

  • 41.
    Keller, Markus
    Linköping University, Department of Electrical Engineering, Computer Engineering.
    Implementation of LTE Baseband Algorithms for a Highly Parallel DSP Platform2016Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    The division of computer engineering at Linköping’s university is currentlydeveloping an innovative parallel DSP processor architecture called ePUMA. Onepossible future purpose of the ePUMA that has been thought of is to implement itin base stations for mobile communication. In order to investigate the performanceand potential of the ePUMA as a processing unit in base stations, a model of theLTE physical layer uplink receiving chain has been simulated in Matlab and thenpartially mapped onto the ePUMA processor.The project work included research and understanding of the LTE standard andsimulating the uplink processing chain in Matlab for a transmission bandwidth of5 MHz. Major tasks of the DSP implementation included the development of a300-point FFT algorithm and a channel equalization algorithm for the SIMD unitsof the ePUMA platform. This thesis provides the reader with an introduction tothe LTE standard as well as an introduction to the ePUMA processor. Furthermore,it can serve as a guidance to develop mixed point radix FFTs in general orthe 300 point FFT in specific and can help with a basic understanding of channelequalization. The work of the thesis included the whole developing chain from understandingthe algorithms, simplifying and mapping them onto a DSP platform,and testing and verification of the results.

  • 42.
    Ragavan, Rengarajan
    Linköping University, Department of Electrical Engineering, Electronic Devices. Linköping University, The Institute of Technology.
    Reconfigurable FSM for Ultra-Low Power Wireless Sensor Network Nodes2013Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Wireless sensor networks (WSN) play an important role in today’s monitoring and controlsystems like environmental monitoring, military surveillance, industrial sensing and control, smarthome systems and tracking systems. As the application of WSN grows by leaps and bounds, there is anincreasing demand in placing a larger number of sensors and controllers to meet the requirements. Theincreased number of sensors necessitates flexibility in the functioning of nodes. Nodes in wirelesssensor networks should be capable of being dynamically reconfigured to perform various tasks is theneed of the hour.In order to achieve flexibility in node functionality, it is common to adopt reconfigurablearchitecture for WSN nodes. FPGA-based architectures are popular reconfigurable architectures bywhich WSN nodes can be programmed to take up different roles across time. Area and power are themajor overheads in FPGA based architectures, where interconnect consumes more power and area thanlogic cells. The contemporary WSN standard requires longer battery life and micro size nodes for easyplacement and maintenance-free operation for years together.Three solutions have been studied and evaluated to approach this problem: 1) Homogenousembedded FPGA platform, 2) Power gated reconfigurable finite state machines and 3) Pass transistorlogic (PTL) based reconfigurable finite state machines. Embedded FPGA is a CMOS 65nm customdeveloped small homogenous FPGA which holds the functionality of the WSN nodes and it will bedynamically reconfigured from time to time to change the functionality of the node. In Power gatedreconfigurable FSM architecture, the functionality of the node is expressed in the form of finite statemachines, which will be implemented in a LUT based power gated design. In PTL based reconfigurablefinite state machine architecture, the finite state machines are completely realized using PTL basedcustom designed sets of library components. Low power configuration memory is used to dynamicallyreconfigure the design with various FSMs at different times.

  • 43.
    Nyman, Arvid
    et al.
    Linköping University, Department of Management and Engineering, Industrial Economics. Linköping University, The Institute of Technology.
    Stamer, Martin
    Linköping University.
    How to attract talented software developers: Developing a culturally differentiated employee value proposition2013Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    In today‟s society, where knowledge workers within computer science and software development are becoming increasingly demanded by all types of companies, the competition for this kind of labour also becomes tougher. This report investigates the concept of extracting an employee value proposition that can help a company in need ofthis type of labour to become more attractive. To understand if culture has an impact onthe candidate‟s attraction, it is also investigated whether or not an employee value proposition can be adapted to fit different nationalities. Furthermore, it is explored ifdiscoveries from a company‟s organisational culture can help build a more accurateemployee value proposition.To extract an employee value proposition, the theories within the two fields of employer branding and culture are investigated and applied upon a case company. The case company is a fast-growing, multinational software company in the music business continuously in need of high qualitative knowledge workers. The attributes of a potential employee value proposition were obtained through 15 in-depth interviews with various employees within the case company. These attributes were then verified through asurvey, which also were to distinguish any cultural differences.The conclusions present an employee value proposition fitted for the case company andother companies within the same context, although without any cultural adoption. Some of the main attributes of the extracted employee value proposition were: great colleagues, challenging work tasks and good development possibilities. The two cultures identified within the case company were supposed to be different in many ways according to the theories found. Although in this case study, the two cultures did not seem to show any significant differences at an employee value proposition level. On theother hand, discrepancies were found between the internal and external employer brand and were one of the major recommendations for the case company.

  • 44.
    Subramanians, Sankar Saravanan
    Linköping University, Department of Science and Technology. Linköping University, The Institute of Technology.
    Geo-based Mobility Control for Mobile Traffic Simulators2013Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Most mobile traffic simulators of today depend on the user to supply the mobility behavior of the simulated UEs. This becomes a problem when certain wanted mobility characteristics are to be tested, since the user have to go trough a trial-and-error procedure to come up with the proper mobility behavior. This thesis presents two approaches to mobility control, where the aim is to control UE mobility based on certain mobility characteristics supplied by the end user. The first approach introduces the concept of assigning tasks to UEs, e.g. “cross cell border” or “move to a certain cell”. Furthermore, concepts from control theory are borrowed to control the task assignment process, making it more dynamic and robust. The second approach iteratively calculate movement patterns for the UEs in an area until it finds a movement pattern that has a high probability of satisfying the user’s requested mobility characteristics.

  • 45.
    Dahlström, Patrik
    Linköping University, Department of Science and Technology, Physics and Electronics. Linköping University, The Institute of Technology.
    Geo-based Mobility Control for Mobile Traffic Simulators2013Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Most mobile traffic simulators of today depend on the user to supply the mobility behavior of the simulated UEs. This becomes a problem when certain wanted mobility characteristics are to be tested, since the user have to go trough a trial-and-error procedure to come up with the proper mobility behavior. This thesis presents two approaches to mobility control, where the aim is to control UE mobility based on certain mobility characteristics supplied by the end user.

    The first approach introduces the concept of assigning tasks to UEs, e.g. “cross cell border” or “move to a certain cell”. Furthermore, concepts from control theory are borrowed to control the task assignment process, making it more dynamic and robust.

    The second approach iteratively calculate movement patterns for the UEs in an area until it finds a movement pattern that has a high probability of satisfying the user’s requested mobility characteristics.

    In order to properly evaluate these two approaches a prototype simulator was developed, as well as a virtual network controller to be tested. This test environment simulate a simplified tree network topology.

    Both approaches was tested to control the total number of handovers per second in a simulated area. They both show high accuracy and acceptable precision. Additionally, the task based approach was used to control the cell utilization in a target cell. However, the cell utilization tests showed a lower accuracy and precision than the handover rate control tests.

  • 46.
    Bergqvist, Mathias
    Linköping University, Department of Science and Technology. Linköping University, The Institute of Technology.
    Extending a Game Concept’s Scope of use by Adapting Mobile Platform Usage2013Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    The report features the technical fundamentals, implementation, results and discussions within the field of mobile application development in the game industry. The thesis explored the game industry from within the industry, as the purpose was to further expand the game concept of the PC game theHunter by using a mobile platform. In the age of the multi-touch smartphone, applications are a huge and competitive industry withmany interesting development approaches. Using the fundamental principles of system architecture and interface design for mobile development, a game companion application based in an Android environment was developed. Game data was provided by the game development studio Expansive Worlds. The results showed support for the platform, but clearly states that further development is needed to actually explore the mobile market further. Implications for the results of the study and future tasks are discussed.

  • 47.
    Ghaeini, Bentolhoda
    Linköping University, Department of Computer and Information Science. Linköping University, The Institute of Technology.
    A Fault-Aware Resource Manager for Multi-Processor System-on-Chip2013Independent thesis Advanced level (degree of Master (Two Years)), 80 credits / 120 HE creditsStudent thesis
    Abstract [en]

    The semiconductor technology development empowers fabrication of extremelycomplex integrated circuits (ICs) that may contain billions of transistors. Suchhigh integration density enables designing an entire system onto a single chip,commonly referred to as a System-on-Chip (SoC). In order to boost performance,it is increasingly common to design SoCs that contain a number of processors, socalled multi-processor system-on-chips (MPSoCs).While on one hand, recent semiconductor technologies enable fabrication ofdevices such as MPSoCs which provide high performance, on the other hand thereis a drawback that these devices are becoming increasingly susceptible to faults.These faults may occur due to escapes from manufacturing test, aging effects orenvironmental impacts. When present in a system, faults may disrupt functionalityand can cause incorrect system operation. Therefore, it is very importantwhen designing systems to consider methods to tolerate potential faults. To copewith faults, there is a need of fault handling which implies automatic detection,identification and recovery from faults which may occur during the system’s operation.This work is about the design and implementation of a fault handling methodsfor an MPSoC. A fault aware Resource Manager (RM) is designed and implementedto obtain correct system operation and maximize the system’s throughputin the presence of faults. The RM has the responsibility of scheduling jobs to availableresources, collecting fault states from resources in the system and performingfault handling tasks, based on fault states. The RM is also employed in multipleexperiments in order to study its behavior in different situations.

  • 48.
    Gammal, Sofie
    et al.
    Linköping University, Department of Management and Engineering, Business Administration. Linköping University, Faculty of Arts and Sciences.
    Nakatuis, Cosette
    Linköping University, Department of Management and Engineering, Business Administration. Linköping University, Faculty of Arts and Sciences.
    Förutsättningar för lärande?: En fallstudie om medarbetarnas möjligheter och hinder att lära inom den privata äldreomsorgen2013Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Background: Learning is today considered to be of high relevance in terms of organizations' development and competitiveness in the market due to the rapidly changing environment. In a learning organization, learning is seen as a means to create a propensity for change within the organization, create innovation, adapt to the environment and to create competitive advantages. There is no agreed definition of organizational learning, nor how organizations act or should act to achieve this.

    Aim/purpose: The study has a dual purpose: First, it aims to examine the structure of organizational learning with respect to both planned and unplanned activities. This in order to see what characterizes learning and how activities can help employees to learn. Secondly, it aims to make recommendations that contribute to the improvement of learning.

    Methodology: To answer our purpose, a qualitative case study was conducted through semi-structured interviews and observations at the elderly housing Rosen. The study had an inductive approach where empirical data is the basis for the selection of theories.

    Conclusions: Through the study, we have identified both formal and informal learning activities. The focus from the organization is primarily on formal learning while employees are demanding opportunities to learn by doing. Meetings are an important arena for the exchange of knowledge and experiences. A big part of the tasks at Rosen involves following procedures, minimize deviations and ensuring that the terms of reference is followed. There is little if any room for the employees to review or question the prevailing situation and conditions that govern the work and operations. We believe that the organizations values and norms controls and guides the employees which can limit learning and knowledge opportunities.

  • 49.
    Karlsson, Håkan
    Linköping University, Department of Science and Technology. Linköping University, The Institute of Technology.
    Design and implementation of a central unit to an RFID-based safety system remote controlled by GPRS2005Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    SafeTool has during 2004-2005 developed a security system based on RFID 1 technology. The system is primarily intended to be used on construction sites to attain safer and more efficient logistics regarding valuable tools. By marking each tool with an RFID tag the system can log the usage of it and protect it against theft.

    The system communicates through GPRS 2 with a central server that certified users can log on to and check the status for each tool. This thesis describes the process of designing the central unit to the SafeTool system. The main tasks for the central unit are to act as a communication hub, to control external devices and to collect data. The unit is based on AVR microcontrollers and the design process consists of different communication interfaces, output and input control and power management. In addition to this the process of choosing appropriate RFID technology is also described. The design process has resulted in a fully operable SafeTool system that will reach the market in the third quarter of 2005.

  • 50.
    Helmbro, Robert
    Linköping University, Department of Science and Technology. Linköping University, The Institute of Technology.
    Konstruktion av rigg för utveckling av mjukvara till datorsystem i båtar2006Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    The past several years have witnessed a strong development and spreading of computers in many areas. One of many advantages with computers is their flexibility, one single computer can perform many different tasks. This thesis aim to make use of the computers resources in pleasure boats.

    The objective with the thesis is to build a rigg for a computer system in boats. The rigg will be used as tool for further testing and development of software. The computer shall replace supervision instruments and media systems in motor driven pleasure boats. For example tachometer, thermometer, GPS-plotter, DVD and music player.

    The solution is to use a small PC. Then it is possible to implement most of the functions only by using existing peripherals. To supervise the motor a signalconverter who report to the PC via USB is designed. A keypad is also designed.

    For development a LabView program is used to simulate and generate necessary electric signals. The result of the thesis is a rigg and a signal simulator, the author hopes that these parts will underlie further development to a commercial product.

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