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  • 1.
    120112 HONG, SISONG
    et al.
    University of Gävle, Faculty of Education and Business Studies, Department of Business and Economic Studies.
    LIN, SHUNZHAO
    University of Gävle, Faculty of Education and Business Studies, Department of Business and Economic Studies.
    Service Marketing in a cross-culture environment: a case of Elekta China2011Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
  • 2.
    Aare, Therese
    et al.
    University of Gävle, Faculty of Health and Occupational Studies, Department of Social Work and Psychology.
    Wernh, Weronica
    University of Gävle, Faculty of Health and Occupational Studies, Department of Social Work and Psychology.
    Emotionella upplevelser och emotionsreglering i samband med en nedskärningsprocess2012Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The aim of this study was to investigate emotions and emotion regulation of a downsizing in an industrial company. The sample consisted of persons who had experienced a downsizing but have kept the employment, within a same position or being transferred to another one. Data consisted of two focus group interviews, analysed by an inductive thematic analysis. The results have indicated that emotional reactions changed over time as well the emotional regulation did during the different phases. The groups differed in emotional reaction related to the time of decision regarding the retention of employment. One conclusion is that fast and accurate information during the different phases of a downsizing process may lead to more positive emotional reactions, which in consequence may result in a positive experience of the reduction process as a whole. The confidence in management increased across the time, due to its decisiveness during the process of downsizing.

  • 3.
    Aarenstrup, Roger
    University of Gävle, Department of Business Administration and Economics.
    Improvements in Organizational development2009Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Aim: The aim of this study was to investigate the relation between innovation and system complexity, and suggest improvements for an organization to handle innovation and complexity better.

    Method: The analysis was based on theoretical models about organizational structure, development models and knowledge management. The models were selected to highlight theoretical extremes rather than practical usefulness to avoid practical obstacles in the theoretic evaluations. The work progressed as a strategy development flow based on a model including four phases; analysis, objectives and recommendations, options and Implementation.

    Result & Conclusions: To significantly improve how complexity and innovation are managed it isn’t sufficient to focus on improvements in one part, such as processes. Organizational goals, external environment, organizational structure, development model, knowledge management and internal culture have to be considered and balanced to achieve significant improvements. For the organization studied it was clear that there was a difference in the official description of the organization and how it worked in practice.

    Suggestions for future research: Metrics are important to measure value and improvement. Balanced metrics describing how well an organization is adapted to its goals and environment is an area for future work. The effect of Model-Based design on organizational structure is another interesting topic for further research.  

    Contribution of the thesis: The recommendations and objectives developed in this study can be used to improve an organization with respect to both internal and external environment.

  • 4.
    Aasa, Ulrika
    University of Gävle, Belastningsskadecentrum.
    Ambulance work: relationships between occupational demands, individual characteristics and health-related outcomes2005Doctoral thesis, monograph (Other scientific)
    Abstract [en]

    Although musculoskeletal disorders (MSDs) and other health cornplaints are an occupational problem for ambulance personnel, there is a lack ofknowJedge regarding work-related factors associated with MSDs and other health cornplaints. The overall aim ofthis thesis was to investigate the relationships between occupational demands, individual characteristics and health-related outcornes among ambulance personnel.

    A random sarnple of 234 female and 953 male ambulance personnel participated in a national questionnaire suTVey on work-related factors, and musculoskeletal and other health cornplaints. Physical demands was associated with activity limitation due to neck-shoulder and low-back complaints among the female personnel. Among the male personnel, physical demands was associated with low-back cornplaints and activity limitation due to low-back cornplaints. Psychological demands was significantly associated with neck-shoulder complaints, sleeping problerns, headache and stomach syrnptorns among both female and male ambulance personnel. Worry about work conditions was associated with musculoskeletal disorders and sleeping problerns, headache and stomach symptoms.

    A local sample of 26 ambulance personnel was followed during a 24-hour work shift and for the next two work-free days. Subjective stress- and energy levels, and cortisol levels were measured at regular inteTYals, and heart rate was registered continuously by electrocardiogram (ECG). Autonomic reactivity to standardized tests before (pre-work) and at the end of the work shift (post-work) was also investigated. For the whole group, baseline values of heart rate were higher pre-work than post-work, but autonomic reactivity did not differ. lncreased reactivity to the mental test, modest deviation in heart rate variability (HRV) pattem during the Jate night hours at work and higher moming cortisol values during work than during leisure time were obseTVed in personnel with many health cornplaints, but not among their co-workers without or with few complaints. Ambulance personnel with many health complaints also reported higher psychological demands and tended to be more worried about work conditions.

    Heart rate (HR), lactate level (LL) and perceived exertion (RPE) were investigated in 17 female and 48 male ambulance personnel during a simulated standardized work task "carry a loaded stretcher". The ambulance personnel had to carry the loaded stretcher (920 N) up and down three tlights of stairs twice. The high physiological strain (HR, LL, RPE) for the male, and near or at maximal strain for the female ambulance personnel, implied the importance to identify what kind of physical capacity is most important for ambulance personnel. Therefore, the explained variance of developed fatigue by tests of cardiorespiratory capacity, muscular strength and endurance, and coordination was investigated. The results showed that VO2max and isometric back endurance were important predictors for development of fatigue when carrying a loaded stretcher .

    The influence of body size on the relationships between maximal strength and functional performance was investigated in a methodological study. The results confirm that the assessment ofphysical performance could be confounded by the body weight. Therefore, the models for explaining development of fatigue when carrying the loaded stretcher were adjusted for height and weight. lncluding height in the models significantly increased the exp1ained variance of accumulated lactate among female, but not among male personnel. Lactate levels were higher among short cornpared to tall female personnel. Weight had no effect on any of the models.

    In conclusion, the national suTVey showed that self-reported physical demands was a risk factor of having MSDs, and that self-reported psychological demands and worry about work were important risk factors of having MSDs and other health complaints. Stress monitoring of ambulance personnel during work and leisure time showed that physiological and subjective stress markers did not show any differences between the 24-hour ambulance work shift and leisure time afterwards. However, ambulance personnel with many health cornplaints had certain physiological changes during the work shift in cornparison with the next two work-free days. The physiological and subjective responses during carrying a loaded stretcher, especially among the female ambulance personnel, showed that female and male ambulance personnel could be exposed to intemal exposures at different levels when performing the same work task. A better understanding of the relationships between occupational demands and health-related ou tcomes require further studies on age- and gender matched groups in long-term perspective studies.

  • 5.
    Aasa, Ulrika
    et al.
    University of Gävle, Belastningsskadecentrum.
    Barnekow-Bergkvist, Margareta
    University of Gävle, Belastningsskadecentrum.
    Angquist, Karl-Axel
    Brulin, Christine
    Relationships between work-related factors and disorders in the neck-shoulder and low-back region among female and male ambulance personnel2005In: Journal of Occupational Health, ISSN 1341-9145, E-ISSN 1348-9585, Vol. 47, no 6, p. 481-489Article in journal (Refereed)
    Abstract [en]

    This cross-sectional study on a random sample of 1,500 ambulance personnel investigated the relationships between self-reported work-related physical and psychosocial factors, worry about work conditions, and musculoskeletal disorders among female and male ambulance personnel. Three different outcomes, complaints, activity limitation, and sick leave, for the neck-shoulder and low-back region, respectively, were chosen. Among the female personnel, physical demands was significantly associated with activity limitation in the neck-shoulder (OR 4.13) and low-back region (OR 2.17), and psychological demands with neck-shoulder (OR 2.37) and low-back (OR 2.28) complaints. Among the male personnel, physical demands was significantly associated with low-back complaints (OR 1.41) and activity limitation (OR 1.62). Psychological demands and lack of social support were significantly associated with neck-shoulder complaints (OR 1.86 and OR 1.58, respectively) and activity limitation (OR 3.46 and OR 1.71) as well as activity limitation due to low-back complaints (OR 2.22 and OR 1.63). Worry about work conditions was independently associated with activity limitation due to low-back complaints among the female (OR 5.28), and to both neck-shoulder and low-back complaints (OR 1.79 and OR 2.04, respectively) and activity limitation (OR 2.32 and OR 1.95) among the male personnel. In conclusion, the association patterns between physical and psychological demands and MSDs suggest opportunities for intervention.

  • 6.
    Aasa, Ulrika
    et al.
    University of Gävle, Belastningsskadecentrum.
    Barnekow-Bergkvist, Margareta
    University of Gävle, Belastningsskadecentrum.
    Jaric, Slobodan
    University of Gävle, Belastningsskadecentrum.
    Johansson, Håkan
    University of Gävle, Belastningsskadecentrum.
    Normalisation of muscle strength for body size: The role of the function assessed2004In: Journal of Human Movement Studies, ISSN 0306-7297, Vol. 46, no 2, p. 105-116Article in journal (Refereed)
    Abstract [en]

    The role of body size has often been neglected in routine tests of muscle strength and movement performance. The aim of the present study was to test the hypothesis that different types of functional movement performance require different normalisations in order to assess muscle strength. Twenty-one right-handed male university students were tested on the following functional movement tasks: vertical jump, standing soccer ball kick, seated medicine ball throw and standing maximal isometric lift. Isokinetic strength of active muscle \, groups was also recorded. The performance of the vertical jump and standing s9ccer ball kick demonstrated stronger relationship with the strength of active muscles normalised for body size, while the performance of the s~ated medicine ball throw and standing maximal

    Iisometric lift demonstrated stronger relationship with the non- normalised strength.

    It was concluded that the ability of performing functional movements based on overcoming gravitational and/or inertial resistance of subject's own body (such as keeping certain body postures, or various body movements) should be assessed by the tested muscle strength normalised for body size, while the functional performance based on muscle action performed against external objects (e.g. manual material handling, or lifting heavy objects) should be assessed by the non-normalised muscle strength. The obtained f"mdings proved to be in line with our recently proposed classification of muscle strength and functional movement tests based on the role of body size in the re~orded performance.

  • 7.
    Aasa, Ulrika
    et al.
    University of Gävle, Belastningsskadecentrum.
    Brulin, Christine
    Angquist, Karl-Axel
    Barnekow-Bergkvist, Margareta
    University of Gävle, Belastningsskadecentrum.
    Work-related psychosocial factors, worry about work conditions and health complaints among female and male ambulance personnel.2005In: Scandinavian Journal of Caring Sciences, ISSN 0283-9318, E-ISSN 1471-6712, Vol. 19, no 3, p. 251-258Article in journal (Refereed)
    Abstract [en]

    This study aimed at investigating the relationships between work-related psychosocial factors, worry about work conditions and health complaints (sleeping problems, headache and stomach symptoms) among female and male ambulance personnel. Out of 4000 ambulance personnel in Sweden, 1500 (300 female and 1200 male personnel) were randomly selected. They answered a questionnaire including items on self-reported health complaints, individual characteristics, work-related psychological demands, decision latitude, social support and worry about work conditions. Twenty-five per cent of the female and 20% of the male ambulance personnel reported two or more health complaints sometimes or often. According to the demand-control-support questionnaire, ambulance personnel reported a generally positive psychosocial work environment, although psychological demands were associated with sleeping problems, headache and stomach symptoms among both female and male ambulance personnel. Another factor that was significantly associated with health complaints among both genders was worry about work conditions. When worry about work conditions was added to the regression models, this variable took over the role from psychological demands as a predictor for health complaints among the female ambulance personnel. The prevalence of sleeping problems, headache and stomach symptoms were significantly associated with psychological demands among both female and male ambulance personnel. Notably, worry about work conditions seems to be an important risk factor for health complaints. This suggests that worry about work conditions should not be neglected when considering risk factors among ambulance personnel.

  • 8.
    Aasa, Ulrika
    et al.
    University of Gävle, Centre for Musculoskeletal Research.
    Jensen, B R
    Sandfeld, J
    Lyskov, Eugene
    University of Gävle, Centre for Musculoskeletal Research.
    Richter, Hans O
    University of Gävle, Centre for Musculoskeletal Research.
    Crenshaw, Albert
    University of Gävle, Centre for Musculoskeletal Research.
    The impact of computer mouse work with different size objects on subjective perception of fatigue and performance2007In: 39th Annual Congress of the Nordic Ergonomics Society, 2007Conference paper (Other academic)
  • 9.
    Aasa, Ulrika
    et al.
    University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational and Public Health Sciences, CBF. University of Gävle, Centre for Musculoskeletal Research. Department of Community Medicine and Rehabilitation, Physiotherapy, University of Umeå, Sweden.
    Jensen, B. R.
    Sandfeld, J.
    Richter, Hans
    University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational and Public Health Sciences, CBF. University of Gävle, Centre for Musculoskeletal Research.
    Lyskov, Eugene
    University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational and Public Health Sciences, CBF. University of Gävle, Centre for Musculoskeletal Research.
    Crenshaw, Albert
    University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational and Public Health Sciences, CBF. University of Gävle, Centre for Musculoskeletal Research.
    The impact of object size and precision demands on fatigue during computer mouse use2011In: Advances in Physiotherapy, ISSN 1403-8196, E-ISSN 1651-1948, Vol. 13, no 3, p. 118-127Article in journal (Refereed)
    Abstract [en]

    Prolonged computer use, especially if fatigue ensues, is associated with visual and musculoskeletal symptoms. The aim was to determine the time-course of perceived fatigue in the wrist, forearm, shoulder and eyes during a 60-min mouse task (painting rectangles), and whether object size and/or mouse use demands were of influence. Also, we investigated performance (number of rectangles painted), and whether perceived fatigue was paralleled by local muscle fatigue or tissue oxygenation. Ten women performed the task for three conditions (crossover design). At condition 1, rectangles were 45 × 25 mm, square paint cursor size 1.3 × 1.3 mm, and mousepointer movement ratio 1:26. At condition 2, the same cursor size and mousepointer movement ratio was used, but rectangles were smaller. At condition 3, the smaller rectangles were used, but the cursor size was also smaller and mousepointer movement ratio was 1:8. The results showed increased self-reported fatigue over time, with the observed increase greater for the eyes, but no change in physiological responses. Condition 2 resulted in higher performance and increased eye fatigue. Perceived fatigue in the muscles or physiological responses did not differ between conditions. In conclusion, computer work tasks imposing high visual and motor demands, and with high performance, seemed to have an influence on eye fatigue. 

  • 10.
    Aasa, Ulrika
    et al.
    University of Gävle, Belastningsskadecentrum.
    Kalezic, Nebojsa
    University of Gävle, Belastningsskadecentrum.
    Lyskov, Eugene
    University of Gävle, Belastningsskadecentrum.
    Barnekow-Bergkvist, Margareta
    University of Gävle, Belastningsskadecentrum.
    Samband mellan självrapporterad stress, salivkortisol och musculoskelettala besvär: Självrapporteringsmetoder i stressforskning2004In: Stress-conference, 2004Conference paper (Other (popular science, discussion, etc.))
  • 11.
    Aasa, Ulrika
    et al.
    University of Gävle, Centre for Musculoskeletal Research.
    Kalezic, Nebojsa
    University of Gävle, Centre for Musculoskeletal Research.
    Lyskov, Eugene
    University of Gävle, Centre for Musculoskeletal Research.
    Ängquist, Karl-Axel
    Department of Surgical and Perioperative Sciences, University of Umeå, Umeå, Sweden.
    Barnekow-Bergkvist, Margareta
    University of Gävle, Centre for Musculoskeletal Research.
    Stress monitoring of ambulance personnel during work and leisure time2006In: International Archives of Occupational and Environmental Health, ISSN 0340-0131, E-ISSN 1432-1246, Vol. 80, no 1, p. 51-59Article in journal (Refereed)
    Abstract [en]

    Objectives: The aim of the present study was to assess physiological and subjective stress markers during a 24-h ambulance work shift and during the next two work-free days, and relate these parameters to self-reported health complaints. Methods: Twenty-six ambulance personnel were followed during a 24-h work shift and during the next two work-free days with electrocardiogram, cortisol assessments and diary notes. The ambulance personnel also performed tests of autonomic reactivity before and at the end of the work shift. The subjects were categorized into two groups according to their number of health complaints. Results: In general, stress markers did not show differences between the work shift and leisure time. However, a modest deviation in heart rate variability pattern and higher morning cortisol values during work in comparison with work-free days were observed in personnel with many health complaints. Conclusions: Subjective and physiological characteristics of ambulance personnel did not indicate distinctive stress during the 24-h work shift. Relationships between frequent health complaints and specific work-related factors require further prospective studies.

  • 12.
    Aasa, Ulrika
    et al.
    Umeå universitet.
    Wiitavaara, Birgitta
    University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational and Public Health Sciences, Occupational health science. University of Gävle, Centre for Musculoskeletal Research.
    Personalens hälsa och arbetsmiljö2016In: Prehospital akutsjukvård / [ed] Björn-Ove Suserud, Lars Lundberg, Stockholm: Liber, 2016, 2, p. 72-79Chapter in book (Other academic)
  • 13.
    Aasa, Ulrika
    et al.
    Umeå universitet.
    Wiitavaara, Birgitta
    University of Gävle, Centre for Musculoskeletal Research.
    Personalens hälsa och arbetsmiljö2009In: Prehospital akutsjukvård / [ed] Suserud, Björn-Ove. Svensson, Leif., Stockholm: Liber , 2009, p. 33-38Chapter in book (Other academic)
  • 14.
    Aasa, Ulrika
    et al.
    University of Gävle, Centre for Musculoskeletal Research. Department of Community Medicine and Rehabilitation, physiotherapy, University of Umeå, Umeå, Sweden.
    Ängquist, Karl-Axel
    Department of Surgical and Perioperative Sciences, University of Umea ̊ , Sweden.
    Barnekow-Bergkvist, Margareta
    University of Gävle, Centre for Musculoskeletal Research.
    The effects of a 1-year physical exercise programme on development of fatigue during a simulated ambulance work task2008In: Ergonomics, ISSN 0014-0139, E-ISSN 1366-5847, Ergonomics, Vol. 51, no 8, p. 1179-1194Article in journal (Refereed)
    Abstract [en]

    The aim of the study was to evaluate the effects of individually prescribed physical exercise programmes on development of fatigue during the carrying of a loaded stretcher up and down the stairs. Nineteen ambulance personnel performed the training for 1 year. Testing occurred before and after 1 year of the training. Both the training group (n = 19) and the control group (n = 15) were assessed for physical capacity and lactate concentration in blood and ratings of perceived exertion during carrying a stretcher on the stairs. When comparisons were made between those who had been training three times/week for 1 year and the control group, lactate concentration was significantly decreased. In conclusion, markers of fatigue during stretcher carrying can be reduced by the use of individually prescribed physical exercise programmes.

  • 15.
    Aasum Hultberg, Rosanna
    University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational and Public Health Sciences.
    Det är väl på sätt och vis det heteronormativa samhället som har gjort mig till transperson […]”: En enkätstudie med transpersoner2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The overall aim was to study transgender persons’ experiences of, and reactions upon, attitudes and social norms in relation to their gender identity. Another question that was relevant to answer was how transgender persons are affected by the hetero norm. The method used to collect data was through questionnaires published on the internet. The only requirement to participate was to be a transgender over 18 years old, and when the survey closed, 35 respondents had answered it. The questionnaire consisted of both quantitative and qualitative questions. Collected data were analyzed using descriptive statistics and content analysis.

    The results indicate that transgender persons living conditions are largely affected by norms, and that they encounter a considerable amount of negative attitudes due to their gender identity. To "pass" as either man or woman turned out to be something that made it easier for transgender people to evade negative attitudes.

    One hope is that this study can provide knowledge to different instances in the community to open up to be more open to critical thinking around norms.

    The conclusion was that persons with a transgender identity are affected by societal norms and by heteronormativity. It takes a lot of courage to be able to be one self but everything boils down to how strong a person are and the availability of support and role models in the surrounding society. 

  • 16.
    Aavanen, Anette
    University of Gävle, Department of Mathematics, Natural and Computer Sciences. University of Gävle.
    Hur räknar du?: barns subtraktionsstrategier i tidiga år2009Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Sammanfattning: Syftet med examensarbetet var att få en fördjupad förståelse över hur barn tänker matematik med fokus på subtraktion. Arbetet koncentrerades kring vilken uppfattning eleverna har om subtraktion i relation till addition, vilka subtraktionsstrategier de har samt om dessa skiljer sig utifrån ett genusperspektiv. Syftet var också att ta reda på hur subtraktion presenteras under de första skolåren, med hjälp av lärarintervjuer och läroboksanalyser. Tillvägagångssättet var således kvalitativa intervjuer med elever och lärare samt analys av skolornas läromedel.

     

    Det jag kom fram till med arbetet var att elever ofta behärskar många strategier innan de börjar skolan men att de sedan utvecklas till att enbart använda en metod. Lärare har därför ett ansvar i klassrummet att pedagogiskt lägga upp ett arbetssätt som hjälper eleverna att etablera de strategier som de har och lära ut flera strategier. Den vanligaste subtraktionsstrategin för elever i tidiga år är att räkna med borttagningsmetoden.

  • 17.
    Abad, Marta
    University of Gävle, Department of Technology and Built Environment.
    WORK WITH AGENDA 21 IN EUROPEAN CITIES.: A case of study: the waste's management in Barcelona and Gävle2008Independent thesis Advanced level (degree of Magister), 20 points / 30 hpStudent thesis
    Abstract [en]

    Sweden is a long-term world reference country in terms of sustainable development. On the other hand, Barcelona has recently made great efforts in order to improve and to make society aware of the importance of environmental issues. Hence, it would be interesting to investigate if these efforts had succeeded in the waste’s management in Barcelona compared to other leading European cities, and particularly to the case of Gävle.

    In this work, the operation of the management of the urban solid wastes of the two cities is explained.

    First, the objectives marked by Agenda 21 of each locality are exposed. Next, a theoretical perspective about management, generation of wastes and types of waste treatment is provided. In the following chapter, the results of the generation of wastes, selective collection and the treatments of the wastes are shown for both the cases of Barcelona and Gävle until the 2006.

    Finally, the two cities are compared and the results obtained in the management of the wastes are discussed.

    The conclusion in this study is that Barcelona has improved noticeable in terms of environmentally safe management of the wastes. This has happened thanks to the efforts of the city council and of the citizens.

    But It is still necessary to make a major effort by the inhabitants of Barcelona.

  • 18.
    Abangma, Ferdinand Enoayuk
    University of Gävle, Department of Business Administration and Economics.
    Recognition of Brand Equity and Advertising in the Banking Industry in Cameroon. Case study Citibank N.A.: MBA-thesis in marketing2009Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    PURPOSEThe main purpose of this research is to determine the consumer level approach of brand equity in Citibank N.A using empirical information based on its brand awareness. The awareness of a brand would show the level of the brand recognition. A telephone interview was conducted to explain the different aspects that constitute the recognition of brand equity and brand awareness of Citibank N.A-Cameroon in addition to its ads.

    RESEARCH QUESTIONHow can Citibank N.A, Cameroon subsidiary, measure the level of its brand equity from its brand awareness?

    RESEARCH APPROACH/METHODOLOGYIn order to answer the research question and achieve the research objective established for this research, a structured research method was required. In this research a qualitative research approach was applied to suit the content of the research. A telephone interview was conducted to give a qualitative view of this research.

    FINDINGS AND CONCLUSIONSAwareness (aided, unaided), contributes to the recognition of brand equity. In the empirical part of the thesis brand recognition and awareness can be facilitated by Citibank-Cameroon subsidiary being participative in its social corporate responsibility plan to develop the community by planting trees and organizing football competition every summer holidays. This brand strategy has been used for several years to keep a positive brand image of the bank.

  • 19.
    Abarghache, Nadia
    et al.
    University of Gävle, Faculty of Education and Business Studies, Department of Educational sciences.
    Johansson, Ellen
    University of Gävle, Faculty of Education and Business Studies, Department of Educational sciences.
    Kan en läshund bidra till att positivt påverka barns läsförmåga?: En metainspirerad innehållsannanlys2017Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Syftet med studien var att få en djupare förståelse om på vilket sätt läshunden kan bidra till att förbättra barns läsförmåga. Studien använder sig av en metainspirerad innehållsanalys. Metaanalys användes för att samla in information till studien samt att kunna dra slutsatser om tidigare forskning. Innehållsanalys användes för att skapa teman och kodning, med hjälp av innehållsanalys kan man skapa en djupare mening med textens innehåll. Artiklarna från resultatdelen samlades in från vetenskapliga databaser där alla artiklar är peer-reviewe.

     

    Studien undersöker på vilket sätt kan en läshund bidra till att positivt påverka barns läsförmåga? Är det hunden i sig som påverkar barnets läsförmåga eller är det miljön? Resultat visar på att läshunden påverkar barn positivt både psykiskt, fysiskt och socialt. Resultatet visar även på att det är läshunden som påverkar barnen positivt och inte miljön de vistas i under lästiden. Slutsatsen man kan dra av denna studie är att läshunden visar på en positiv påverkan på barn och har givit oss förståelse om på vilket sätt läshunden påverkar barnen.

  • 20.
    Abbas, Syed Haider
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Electronics, Mathematics and Natural Sciences.
    Enhancement of Viterbi Decoder2014Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
  • 21.
    Abbas, Wasim
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management.
    Asghar, Imran
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management.
    The Role of Leadership In Organizatinal Change: Relating the successful Organizational Change with Visionary and Innovative Leadership2010Independent thesis Advanced level (degree of Master (One Year)), 15 credits / 22,5 HE creditsStudent thesis
    Abstract [en]

    The globalization has converted the world into a small global village; a village in which there is an ever high stream of contentions and competitions between organizations. In this scenario the most effective and beneficial maneuver for any organization is to create innovative ways in conducting business. This thesis deals with the role of leadership in the phenomena of organizational change and innovation. The leader as a person in charge or as a change agent can manage an organization or the process of organizational change more effectively and successfully if h/she is capable and competent. Rapid technological advancements, high expectations of customers, and ever changing market situations have compelled organizations to incessantly reassess and reevaluate how they work and to understand, adopt and implement changes in their business model in response of changing trends. Organizational change is a demand of the day, and needed for organizations to survive. Organizations now a days, well understand the importance of the matter, and are serious to prepare themselves not only the current, but also for the future trends to get the level of sustainable success, but Along with all of its implications and importance the process of organizational change is also a very complex and challenging.  Research shows that 70 percent of organizational changes fail to get their goals. As leadership has a central role in evolution and cultivating an organization, the process of organizational change demands a very effective and highly competent leadership that is well capable to perceive the most desirable shape of an organization and address the issue of organizational change in most appropriate way. The analysis of literature reviewed and the results of real life cases of organizations which are studied for this thesis shows, that a leadership with the competencies of “Vision” and “Innovative Approach” along with other characteristics can prove more effective to conclude the complex phenomena of organizational change with success. Further the successful organizational change can leads to innovation for organization, which is the key of long term success and sustainability. This thesis as a result proposed a model which is derived from the leadership competencies, organizational change, and sustainable success and innovation literature. This model expresses relationship between successful organizational change and leadership on the basis of h/her characteristics, which are ‘Vision” and “Innovative Approach”. With the help of proposed model this relationship can be viewed graphically.

  • 22.
    Abbas, Wasim
    et al.
    University of Gävle, Faculty of Education and Business Studies, Department of Business and Economic Studies.
    Chaudhry, Saqib Mehmood
    University of Gävle, Faculty of Education and Business Studies, Department of Business and Economic Studies.
    Analyzing the Disruption Factors of Emerging Markets: A Case Study of Pakistani Telecom IndustryHuawei in Pakistan2011Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    A free and flexible business environment attracts international organisations to those markets that have big growth potential and high profit margins. To penetrate emerging markets is of great interest to any international organisation. The situation gets more intense if it is in the field of telecommunications. Telecommunications (telecoms) and information technology (IT) are generically known as the information and communication technologies (ICT) industries. ICT is one of the fastest growing industries in the world and is also considered among the biggest markets in terms of customer base, growth and profitability. The competition is very high in such markets, so relatively unique, attractive and extraordinary business strategies are usually practiced by these companies. The situation may create an atmosphere of upheavals and uncertainties in such markets. Extraordinary or unethical business policies can not only affect the business of other organisations, but also has some after-effects on societies and the mindset of target nations and market ethics. Organisations are very much engaged with society and work in the social environment, therefore the socio-cultural components is of great importance when designing business strategies. Exploring the facts about emerging markets and by analysing the case of Chinese company Huawei in the Pakistani telecom market, this thesis gives investigates and assess the success factor of this Chinese company. This thesis highlights the upheaval factors of emerging markets, by analysing the role of cultural interests and the mindsets of target nations for organisations planning their strategies

  • 23.
    Abbasi, Mahdi
    University of Gävle, Department of Technology and Built Environment.
    Characterization of a 5GHz Modular Radio Frontend for WLAN Based on IEEE 802.11p2008Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    The number of vehicles has increased significantly in recent years, which causeshigh density in traffic and further problems like accidents and road congestions.A solution regarding to this problem is vehicle-to-vehicle communication, wherevehicles are able to communicate with their neighboring vehicles even in the absenceof a central base station, to provide safer and more efficient roads and toincrease passenger safety.The goal of this thesis is to investigate basic physical layer parameters of ainter-vehicle communication system, like emission power, spectral emission, errorvector magnitude, guard interval, ramp-up/down time, and third order interceptpoint. I also studied the intelligent transportation system’s channel layout inEurope, how the interference of other systems are working in co-channel and adjacentchannels, and some proposals to use the allocated frequency bands. On theother hand, the fundamentals of OFDM transmission and definitions of OFDMkey parameters in IEEE 802.11p are investigated.The focus of this work is on the measurement of transmitter frontend parametersof a new testbed designed and fabricated in order to be used at inter-vehiclecommunication based on IEEE 802.11p.

  • 24.
    Abbasi, Seyed Hesameddin
    et al.
    Mid Sweden University, Sundsvall, Sweden; Tehran University of Medical Sciences, Tehran, Iran; Iranian Petroleum Health Research Institute, Tehran, Iran .
    De Leon, Antonio Ponce
    Karolinska Institutet, Stockholm, Sweden; Universidade do Estado de Rio de Janeiro, Brazil.
    Kassaian, Seyed Ebrahim
    Tehran University of Medical Sciences, Tehran, Iran.
    Karimi, Abbasali
    Tehran University of Medical Sciences, Tehran, Iran.
    Sundin, Örjan
    Department of Psychology, Mid-Sweden University, Östersund, Sweden.
    Jalali, Arash
    Tehran University of Medical Sciences, Tehran, Iran.
    Soares, Joaquim
    Mid Sweden University, Sundsvall, Sweden; Karolinska Institutet, Stockholm, Sweden.
    Macassa, Gloria
    University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational and Public Health Sciences, Public health science. Mid Sweden University, Sundsvall, Sweden; Karolinska Institutet, Stockholm, Sweden.
    Socioeconomic status and in‑hospital mortality of acute coronary syndrome: can education and occupation serve as preventive measures?2015In: International Journal of Preventive Medicine, ISSN 2008-7802, E-ISSN 2008-8213, Vol. 6, article id 36Article in journal (Refereed)
    Abstract [en]

    BACKGROUND: Socioeconomic status (SES) can greatly affect the clinical outcome of medical problems. We sought to assess the in-hospital mortality of patients with the acute coronary syndrome (ACS) according to their SES.

    METHODS: All patients admitted to Tehran Heart Center due to 1(st)-time ACS between March 2004 and August 2011 were assessed. The patients who were illiterate/lowly educated (≤5 years attained education) and were unemployed were considered low-SES patients and those who were employed and had high educational levels (>5 years attained education) were regarded as high-SES patients. Demographic, clinical, paraclinical, and in-hospital medical progress data were recorded. Death during the course of hospitalization was considered the end point, and the impact of SES on in-hospital mortality was evaluated.

    RESULTS: A total of 6246 hospitalized patients (3290 low SES and 2956 high SES) were included (mean age = 60.3 ± 12.1 years, male = 2772 [44.4%]). Among them, 79 (1.26%) patients died. Univariable analysis showed a significantly higher mortality rate in the low-SES group (1.9% vs. 0.6%; P < 0.001). After adjustment for possible cofounders, SES still showed a significant effect on the in-hospital mortality of the ACS patients in that the high-SES patients had a lower in-hospital mortality rate (odds ratio: 0.304, 95% confidence interval: 0.094-0.980; P = 0.046).

    CONCLUSIONS: This study found that patients with low SES were at a higher risk of in-hospital mortality due to the ACS. Furthermore, the results suggest the need for increased availability of jobs as well as improved levels of education as preventive measures to curb the unfolding deaths owing to coronary artery syndrome.

  • 25.
    Abbasi, Seyed Hesameddin
    et al.
    Department of Health Sciences, Section of Public Health Sciences, Mid Sweden University, Sundsvall, Sweden; Tehran Heart Center, Tehran University of Medical Sciences, Tehran, Iran.
    Sundin, Örjan
    Department of Psychology, Mid Sweden University, Östersund, Sweden.
    Jalali, Arash
    Tehran Heart Center, Tehran University of Medical Sciences, Tehran, Iran.
    Soares, Joaquim
    Department of Health Sciences, Section of Public Health Sciences, Mid Sweden University, Sundsvall, Sweden.
    Macassa, Gloria
    University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational and Public Health Sciences, Public health science. Department of Health Sciences, Section of Public Health Sciences, Mid Sweden University, Sundsvall, Sweden.
    Ethnic Differences in the Risk Factors and Severity of Coronary Artery Disease: a Patient-Based Study in Iran2018In: Journal of Racial and Ethnic Health Disparities, ISSN 2197-3792, Vol. 5, no 3, p. 623-631Article in journal (Refereed)
    Abstract [en]

    Background

    Diverse ethnic groups may differ regarding the risk factors and severity of coronary artery disease (CAD). This study sought to assess the association between ethnicity and CAD risk and severity in six major Iranian ethnic groups.

    Methods

    In this study, 20,165 documented coronary artery disease patients who underwent coronary angiography at a tertiary referral heart center were recruited. The demographic, laboratory, clinical, and risk factor data of all the patients were retrieved. The Gensini score (an indicator of CAD severity) was calculated for all, and the risk factors and severity of CAD were compared between the ethnical groups, using adjusted standardized residuals, Kruskal–Wallis test, and multivariable regression analysis.

    Results

    The mean age of the participants (14,131 [70.1%] men and 6034 [29.9%] women) was 60.7 ± 10.8 years. The Fars (8.7%) and Gilak (8.6%) ethnic groups had the highest prevalence of ≥4 simultaneous risk factors. The mean Gensini score was the highest for the Gilaks (77.1 ± 55.9) and the lowest among the Lors (67.5 ± 52.8). The multivariable regression analysis showed that the Gilaks had the worst severity (β 0.056, 95% CI 0.009 to 0.102; P = 0.018), followed by the Torks (β 0.032, 95% CI 0.005 to 0.059; P = 0.020). Meanwhile, the Lors showed the lowest severity (β −0.087, 95% CI −0.146 to −0.027; P = 0.004).

    Conclusions

    This study found that there was heterogeneity in CAD severity and a diverse distribution in its well-known traditional risk factors among major Iranian ethnic groups.

  • 26.
    Abbasi, SH
    et al.
    Mittuniversitetet, Institutionen för hälsovetenskap.
    De Leon, AP
    Division of Social Medicine, Department of Public Health Sciences, Karolinska Intitutet, Sweden.
    Kassaian, SE
    Tehran Heart Center, Tehran University of Medical Sciences, Tehran, Iran.
    Karimi.,, AA
    Tehran Heart Center, Tehran University of Medical Sciences, Tehran, Iran.
    Sundin, Ö
    Mittuniversitetet, Institutionen för samhällsvetenskap.
    Soares, J
    Mittuniversitetet, Institutionen för hälsovetenskap.
    Macassa, Gloria
    University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational and Public Health Sciences, Public health science. Mittuniversitetet, Institutionen för hälsovetenskap.
    Gender Differences in the Risk of Coronary Artery Disease in Iran2012In: Iranian Journal of Public Health, ISSN 0304-4556, Vol. 41, no 3, p. 36-47Article in journal (Refereed)
    Abstract [en]

    Background: Given gender differences in the risk of coronary artery disease (CAD), the present study sought to investigate these dissimilarities amongst patients who underwent angiography at a major, tertiary heart hospital in Iran. Methods: Between 2005 and 2010, 44,820 patients who underwent coronary angiography were enrolled in a registry. Pre-procedural data such as demographics, CAD risk factors, presenting symptoms, and laboratory tests, as well as postprocedural data were collected. The data were, subsequently, compared between the men and women. Results: Out of the 44,820 patients (16,378 women), who underwent coronary angiography, 37,358 patients (11,995 women) had CAD. Amongst the CAD patients, the females were not only significantly older, less educated, and more overweight than were the males but also had higher levels of triglyceride, cholesterol, low-density lipoprotein, highdensity lipoprotein, and fasting blood sugar (P< 0.001). Of all the risk factors, hypertension and diabetes mellitus showed the strongest association in our female CAD patients (OR=3.45, 95%CI: 3.28-3.61 and OR=2.37, 95%CI: 2.26- 2.48, respectively). Acute coronary syndrome was more prevalent in the men (76.1% vs. 68.6%, P< 0.001), and chronic stable angina was more frequent in the females (31.4% vs. 23.9%, P< 0.001). With respect to post-procedural recommendations, the frequency of recommendations for non-invasive modalities was higher in the females (20.1% vs. 18.6%, P< 0.001). Conclusion: Hypertension and diabetes mellitus had the strongest association with CAD in our female patients. In the extensive CAD patients, medical treatment was recommended to the women more often.

  • 27.
    Abbassi, Selma
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management.
    Engström, Rickard
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management.
    Algoritm för lokalisering av referensnoder med Indoor Positioning System2016Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Indoor Positioning Systems lokaliserar människor och objekt inomhus med hjälp av minst tre kända referenspunkter. System för inomhuspositionering som använder kända referenspunkter kallas anchor-based lokalisering medan de som beräknar deras positioner själva kallas anchor-free lokalisering. Syftet med detta arbete är att utveckla en algoritm som är anpassad efter ett anchor-free lokaliseringssystem. Den ska vara oberoende av nätverksuppkopplingen, hårdvaran och hur avstånden mellan mottagare och sensorer beräknats. Utgångspunkten för algoritmen är enbart avstånd mellan en mottagare och tre sensorer vilket kan beskrivas som arbetets huvudsakliga problem.

    Algoritmen implementerades i Java med en simulering som återspeglar positioneringen i en perfekt miljö och sedan testas på en Android-applikation. Simuleringen tillåter användaren att rita ut flera mätpunkter som skapar en rutt. Dessa mätpunkter utnyttjas för att dynamiskt lokalisera referenspunkterna och mätpunkterna genom att hitta ett minsta avstånd mellan sensorerna. Dessa avstånd kan beskrivas som sidorna för en referenstriangel som möjliggör att ett koordinatsystem kan spännas upp.

    Resultatet av den empiriska studien visade en felmarginal mellan 0,3-6 m utan signalstörningar, vilket inte var tillräckligt noggrant. Efter att algoritmen implementerats lades fokus på en korrigering som kan itereras igenom för att uppskatta bättre mätvärden för referenstriangeln. Korrigeringen gav positiva resultat med lägre felmarginal. Arbetet kan vidareutvecklas genom att implementeras i ett verkligt IPS-system och algoritmen kan förbättras genom att skapa utökade funktioner som kan hantera fler än tre beacons.

  • 28.
    Abbott, Rebecca
    et al.
    University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational and Public Health Sciences, Occupational health science. University of Gävle, Centre for Musculoskeletal Research.
    Straker, Leon
    Curtin Health Innovation Research Institute, Curtin University, Perth, Australia.
    Mathiassen, Svend Erik
    University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational and Public Health Sciences, Occupational health science. University of Gävle, Centre for Musculoskeletal Research.
    Patterning of children's sedentary time at and away from school2013In: Obesity, ISSN 1930-7381, E-ISSN 1930-739X, Vol. 21, p. E131-E133Article in journal (Refereed)
    Abstract [en]

    Objective:

    Sedentary behavior in children is positively associated with an increased risk of both obesity and insulin resistance. Children spend a considerable portion of their awake time in sedentary behavior; however, the pattern of accumulation is not known. Thus the objective of this study was to describe the patterning of sedentary behavior of children at and away from school.

    Design and Methods:

    The patterns of sedentary time in a sample of 53 children (28 girls) aged 10-12 years during school-term time were examined. Children wore an accelerometer for 1 week. Total sedentary time, prolonged sequences (bouts) of sedentary time, and frequency of active interruptions to sedentary were examined on school days and weekends and within school time and non-school time on school days.

    Results:

    The data did not support our hypothesis that children accumulated more sedentary time on school days when compared with weekend days (mean [SD]: 64.4% [5.3] vs. 64.9% [9.0], P = 0.686). However, when comparing school time with non-school time on school days, children accumulated more sedentary time at school (66.8% [7.3] vs. 62.4% [5.2], P < 0.001) and spent more time at school in sustained sedentary sequences, that is, uninterrupted sedentary time for 30 min or more (75.6 min [45.8] vs. 45.0 min [26.8], P < 0.002). The children also recorded less breaks per sedentary hour within school time when compared with non-school time (8.9 h−1 vs. 10.2 h−1, P < 0.001).

    Conclusion:

    Reducing total sedentary time spent both in and out of school remains an important challenge. Interrupting sedentary time more often in the “working” (school) day could also reap important musculoskeletal and metabolic health rewards for children.

  • 29.
    Abd Allah, Ahmed
    University of Gävle, Department of Business Administration and Economics.
    The effect of Diverse Accounting Practices of Financial Instruments under IFRS on De Facto Harmonization and Comparability: an Empirical Study of IAS 39 in Sweden2009Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Objective: The IFRSs are getting more popularity all over the world. IAS 39 is one of the most sophisticated standards included in the IFRS jurisdiction, which mainly addresses the recognition and measurement of financial instruments and hedge accounting. When these instruments had been off-balance sheet hidden, accounting scandals were the consequences. Capturing these risky instruments in the body of the financial statements, according to IAS 39, implies diverse accounting choices where the selection is tied to managers' judgment.

    The Swedish GAAPs have been criticized in the literature of being less conservative than the US GAAPs. Sweden as an EU member has mandated the adoption of IFRSs in the consolidated financial statements of all listed companies, since 2005. No published research has studied the effect of IAS 39 diverse accounting practices on de facto harmonization and comparability in Sweden. The current study fills this gap in the literature, and goes beyond to investigate whether the selected accounting choices are associated with the industry sectors.

    Methods: A sample of 50 companies listed in NASDAQ, Stockholm in the financial and the industrial sectors is selected. Secondary data are obtained from the 2007 annual reports of the selected companies. Six accounting practice categories are detected under the standard. Herfindahl (H) index and Chi- square test are applied on the data.

    Results: The results show a relatively low harmonization and comparability in most of the accounting practices, and variation in associations between accounting practices and sectors. This infers to the risk of producing non-comparable financial statements that may distort the value of accounting numbers, the content of financial statements and negatively affect market participants.

    Conclusion: Much effort is still needed to enhance de facto harmonization and comparability of financial reporting. Further research is also motivated in order to develop a harmonization theory that support standard setters in revising the existing standard to eliminate inconsistencies in accounting choice selection and enhance comparability.

     

  • 30.
    Abd, Assil
    University of Gävle, Faculty of Education and Business Studies, Department of Educational sciences. 9101270685.
    Fritidspedagogens arbetssätt i arbetet med nyanlända barn: En kvalitativ studie om fritidspedagogers arbetssätt med nyanlända barn i fritidshem med fokus på svårigheter2018Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Studiens syfte var att undersöka fritidspedagogens arbetssätt med nyanlända barn i fritidshem.

  • 31.
    Abdalla Mohamed Ahmed, Fayad
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering, Energy system.
    Energy Audit in Educational Buildings: Case study of Fridhemsskolan in Gävle2017Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The global share from buildings towards energy usage in residential and commercial buildings have been increasing constantly reaching between 20% to 40% in developed countries and has overtook the other major sectors: industrial and transportation. Energy demand reduction in the building sector is important for Sweden to achieve national energy aims for reduced energy use in the future.  For this reason, energy efficiency measures in buildings today is one of the main objective for energy policy towards 2020 goals.

     

    This project moves on the same path to find energy efficiency potential in Fridhemsskolan buildings in Gävle, Sweden by performing energy audit using IDA-ICE software to simulate energy performance for the buildings under study. In addition, measurements have been made on three of the school buildings named Hus 1, Hus 2 and Hus 3.

     

    The results include different energy efficiency retrofits on each building and economic analysis of these retrofits for each building individually and for the whole buildings together. The presented measures are reducing working hours of the ventilation system in Hus 2, change of CAV system with VAV system in (Hus 1 and Hus 2) and lights changing to LED, s efficient lights and building envelope improvement which includes walls and roof extra insulation and windows replacement.

     

    Replacement of the CAV system in Hus 1 and Hus 2 were not economically beneficial when considering their high cost compared to energy reduction that can be achieved by applying them. On the other hand, energy retrofits analysis showed that combination of the following energy efficiency measures is the most effective and profitable: extra insulation (walls and roof), windows replacement and lights change to LED in the three buildings. In addition to these measure is reducing running hours of the ventilation system in Hus 2.

     

    Implementation of the recommended energy efficiency measures will save 120, 737 kWh/ year of the district heating and 21, 962 kWh/year electricity consumption with capital investment of 417, 396 SEK and 98, 957 SEK/ year cost saving with payback period of 4.2 years. These figures represent 40.3% and 18.1% reduction in district heating and electricity energy use respectively.

     

    Since reducing working hours of ventilation system measure has no capital investment and have the highest figure of energy reduction it reduces payback period significantly. In case the amount of money saved by this measure doesn’t consider; payback period for the other measures which require capital investment will be 13.5 years and the energy saving in terms of cost will be 30, 874 SEK/ year. 

  • 32.
    Abdalla, Shireen
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management.
    Strömlind, Sandra
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management.
    Den ekonomiska lönsamheten att friköpa en tomträtt: En studie angående tomträtter i Gävle kommun2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Site-leasehold right is a form of access to a property. This means that the owner of the property, usually a municipality or the state, let a site-leaseholder use the property against an annual ground rent. A ground rent is determined by a site-leasehold agreement between the owner of the property and the site-leaseholder. The fixed ground rents are for a period of 10 or 20 years. Long periods of rents combined with a real estate market with rising prices means that the ground rent at a new period of ground rent can be increased considerably. The site-leaseholder may well choose to redeem their long lease. To buy the freehold of a site-leasehold means that the site-leaseholder acquires the property of the property owner and form a new single-family real estate.  The purpose of the study is to provide a better understanding and knowledge of the site lessee facing the decision to retain the site-leasehold or redeem it. The goal of the project is to provide knowledge about when the economic viability of redeeming a siteleasehold may be deemed attained. Another goal is based on the site-leaseholders perspectives consider to highlighting the underlying reasons why a single-family siteleasehold redeemed.   The study is limited to detached single-family site-leaseholds in three geographical areas in the municipality of Gävle. The economic viability of redeeming single-family site-leasehold examined from the site-leasehold executiver's decision to sell or retain the site-leasehold. To examine more closely why a site lessee chooses to redeem the siteleasehold conducted qualitative telephone interviews.  From the results based on the study, it can be concluded that it is likely to be economically justified to redeem a single-family site-leasehold on the price of acquiring the plot is equal to or less than the amount that symbolizes the breaking point of economic viability. Of the respondents surveyed for the study the single biggest reason for why a site lessee chooses to redeem his site-leasehold was because of the uncertainty arising from the developments around the ground rent.

  • 33.
    Abdalmunim, Rand
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering.
    Effektivisering av bygglovsprocessen gällande ändring av kulturhistoriskt värdefull bebyggelse: En fallstudie av ett miljonprogramsområde-Nya Nordostprojektet i Gävle2015Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    En stor del av Sveriges bebyggelse har byggts mellan 1965 och 1974 eftersom det rådde stor bostadsbrist i Sverige. Regeringen beslutade att en miljon bostäder skulle uppföras under denna tid, det s.k. miljonprogrammet. Det byggdes bostäder i varierande former och storlekar för att bygga bort bostadsbristen. Storskaligheten och en stor grad av upprepning av identiska hus är kännetecken för miljonprogrammets bebyggelser. Nu är det dags att renovera dessa byggnader. I och med att dessa byggnader är av allmänt intresse då de speglar en del av Sveriges arkitekturhistoria ställer kommunerna vissa krav vid renovering av dem. Det kommunala företaget Gavlegårdarna i Gävle tar initiativ till att utveckla bygglovsprocessen för sådana bebyggelser. Detta görs för att reducera tiden för framställande av ett godkänt bygglov samt effektivisera och underlätta kommunikationen med kommunen under hela projektet. För att kunna bevara dessa byggnader i högsta möjliga mån har Gavlegårdarna utarbetat en effektiviseringsprocess genom att hyra in en extern bevarandeexpert för att fungera som en bro mellan företaget och kommunen samt för att kunna dela med sig av sina erfarenheter gällande bevarandet av det eventuella området. Dessutom har Gavlegårdarna låtit kommunen vara med från ett tidigt skede, d.v.s. redan från den första presentationen av förslaget. Därmed har kommunen fått vara med och medverka i förslaget, redan innan bygglovsansökan.

     

    Detta examensarbete tar upp konsekvenserna av de nya tillagda rutinerna och hur de har påverkat bygglovsansökningsprocessen för Nya Nordostprojektet. Genom att intervjua de inblandade aktörerna i det undersökta projektet har slutsatsen dragits att dessa rutiner har bidragit till att processen bedrivits mer effektivt jämfört med företagets tidigare projekt. Därutöver visar denna uppsats hur hyresgästerna har engagerat sig i det eventuella arbetet. Enkätundersökning har utförts för att kunna höra hyresgästernas åsikt.

     

    Det har visat sig att de nya rutinerna har effektiviserat tiden för bygglovsansöknings-processen. Tiden har förkortats jämförts med Gavlegårdarnas övriga projekt. Fördröjning i tid kostar företaget mer pengar. Dessutom har den förbättrade kommunikationen underlättat för båda parter att ta emot klagomål lättare och acceptera det. Det bidrar till att kommande problem kan lösas smidigare. Undersökningen har även visat att i projekt som Nya Nordost tas inte stor hänsyn till hyresgästernas åsikter, då byggherren redan är styrd från kommunen, vilket försvårar att flera kan vara med och välja. Ett annat resultat av denna undersökning var att de intervjuade personerna hade olika åsikter om bevarandet gällande Nordost. De flesta tyckte att Nordost ej var värt att bevara. Undersökningen visade även att hyresgästerna inte har engagerat sig lika mycket i bevarandet av gamla byggnader jämfört med att bo i ett modernare och nyrenoverat område.

  • 34.
    Abdelrahman, Ahmed
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management.
    Detection and Extraction of Sky Regions in Digital Images based on Color Classification2013Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    In many applications of image processing there is a need to extract the solid background which it is usually sky for outdoor images. In our application we present this solution. We developed an automatic algorithm for detection and extraction of sky regions in the color image based on color classification. In which the input image should be in the RGB color space and the blue color is detected and classified. Then the color image is transformed to the binary form and the connected regions are extracted separately. The connected regions are then sorted in a descending order according to the biggest area and the biggest region is identified. Then we merged all objects that have similar sky properties. Experimental results showed that our proposed algorithm can produce good results compared to other existing algorithms.

  • 35.
    Abdelrazek, Fathya
    et al.
    Faculty of Nursing, Suez Canal University, Port-Said, Egypt.
    Skytt, Bernice
    University of Gävle, Faculty of Health and Occupational Studies, Department of Health and Caring Sciences, Nursing science. Department of Public Health and Caring Sciences, Uppsala University, Uppsala, Sweden.
    Aly, Magda
    Faculty of Nursing, Suez Canal University, Port-Said, Egypt.
    El-Sabour, Mona Abd
    Faculty of Nursing, Suez Canal University, Port-Said, Egypt.
    Ibrahim, Naglaa
    Faculty of Nursing, Suez Canal University, Port-Said, Egypt.
    Engström, Maria
    University of Gävle, Faculty of Health and Occupational Studies, Department of Health and Caring Sciences, Nursing science. Department of Public Health and Caring Sciences, Uppsala University, Uppsala, Sweden.
    Leadership and management skills of first-line managers of elderly care and their work environment2010In: Journal of Nursing Management, ISSN 0966-0429, E-ISSN 1365-2834, Vol. 18, no 6, p. 736-745Article in journal (Refereed)
    Abstract [en]

    Aim To study the leadership and management skills of first-line managers (FLMs) of elderly care and their work environment in Egypt and Sweden. Background FLMs in Egypt and Sweden are directly responsible for staff and quality of care. However, FLMs in Sweden, in elderly care, have smaller units/organizations to manage than do their colleagues in Egypt. Furthermore, family care of the elderly has been the norm in Egypt, but in recent years institutional care has increased, whereas in Sweden, residential living homes have existed for a longer period. Methods A convenience sample of FLMs, 49 from Egypt and 49 from Sweden, answered a questionnaire measuring leadership and management skills, structural and psychological empowerment, job satisfaction and psychosomatic health. Results In both countries, FLMs' perceptions of their leadership and management skills and psychological empowerment were quite high, whereas scores for job satisfaction and psychosomatic health were lower. FLMs had higher values in several factors/study variables in Egypt compared with in Sweden. Conclusion and implications The work environment, both in Egypt and Sweden, needs to be improved to increase FLMs' job satisfaction and decrease stress. The cultural differences and levels of management have an effect on the differences between the two countries.

  • 36.
    Abdi, Asal
    et al.
    University of Gävle, Department of Business Administration and Economics, Ämnesavdelningen för företagsekonomi. University of Gävle, Department of Business Administration and Economics.
    Laic, Daniella
    University of Gävle, Department of Business Administration and Economics, Ämnesavdelningen för företagsekonomi. University of Gävle, Department of Business Administration and Economics.
    RE/MAX Sverige: En studie inom marknadsföring2010Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Vårt syfte är att ta reda på vilka marknadsföringsstrategier och marknadsföringsmodeller som föreskrivs i teorin, som RE/MAX använder sig av i Sverige i dagsläget samt att komma fram till vilka marknadsföringsverktyg som de kan utveckla för att vinna större marknadsandelar.

  • 37.
    Abdi, Mohammed Bashir
    et al.
    University of Gävle, Faculty of Education and Business Studies, Department of Humanities.
    Kadrija, Agron
    University of Gävle, Faculty of Education and Business Studies, Department of Humanities.
    De förlorade sönerna återvänder hem: En kvalitativ studie om återvändande Daish-krigare från Göteborg, stadens strategi mot terrorism och arbetet mot våldsbejakande extremism2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Svenska medborgare har anslutit sig till terrororganisationen Daish. Många av dessa individer kommer från Göteborg. Syftet med denna forskning är att undersöka hur det kom sig att göte-borgare är överrepresenterade bland svenska Daish-medlemmar. Många av Daish-resenärerna har återvänt till Göteborg. I denna forskning undersöks också Göteborg stads strategi för åter-vändande Daish-medlemmar och hur radikaliseringsprocessen ser ut för individer som ansluter sig till våldsbejakande extremism.

    I denna uppsats tillämpade vi kvalitativ metod med semistrukturerade intervjuer. Materialet i uppsatsen grundar sig på intervjuer med två göteborgare som har anslutit sig till Daish och sedan återvänt till Göteborg. Intervjuer har också hållits med tre poliser och två so-cialarbetare som arbetar mot våldsbejakande extremism i Göteborg.

    Resultaten visar att Göteborg sticker ut i listan bland Sveriges särskilt utsatta om-råden, och att orsaken till att Göteborg är överrepresenterat beror på segregation och utanför-skap. Resultaten visar att vissa stadsdelar i Göteborg har hög arbetslöshet, låg utbildning och dåliga skolresultat. Klyftan mellan utsatta områden och övriga Göteborg växer. Invånarna i dessa områden upplever detta som orättvist, diskriminerande samt att det väcker frustration. Undersökningen visar att klyftan utnyttjas av individer med religiös, klan eller patriarkal makt som ersätter den demokratiska strukturen i de segregerade stadsdelarna. Terrororganisationen Daish är en av aktörerna som har utnyttjat övriga samhällets frånvaro i utsatta stadsdelar. In-formanterna påpekar att Daish-rekryterare överöser religiös propaganda på individer som redan är frustrerade på samhället.

  • 38.
    Abdi, Parvin Monika
    University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational and Public Health Sciences.
    Har elever tillräckligt med tid för att äta?: En undersökning på högstadieelevers upplevelser av skolmåltiden2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Meal at school is a part of the school studies and it is important for health, but is also a prerequisite for both learning and enjoyment.  The school meal can provide students an opportunity to recover from their studies but sometimes students perceive the meal situation as stressful. It is important that the food environment at school works well for school children, so they do not have to rush during the meal and they can get the opportunity to eat in peace. The purpose of this study was to investigate how students perceive lunch break at school. If they feel they get enough time to eat and how they feel during the meal situation in the school restaurant. The research approach of this study was qualitative and the method of data collection was focus groups. Data were analyzed as a content analysis. The aim of the study were secondary school students in grade 7 and 9, one class from each grade was selected. The study was conducted at a secondary school in a municipality in Sweden with approximately 210 000 inhabitants. The results of the study show that students at secondary school feel they have enough time to eat lunch, but the lunch break is too short. The meal environment in the school restaurant is perceived as very messy and stressful. The meal situation was experienced as more stressful at grade 7 students than 9th grade students.  The conclusion was that students need longer lunch break and meal environment is perceived as stressful.

  • 39.
    Abdi, Shorash
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management.
    Stedt, Fredrik
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management.
    Utvärdering av Leicas multistations och laserskanners mätosäkerheter2014Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Presently there is no standard for the evaluation of measurement uncertainties for terrestrial laser scanner (TLS) despite the fact that the instrument has been on the market and used for a long time. Since the manufacturer's specifications do not always correspond with reality, it is important to have knowledge about how well the instrument performs. Numerous studies over the past decade have applied different approaches to estimate the measurement uncertainties on various TLS.

    The purpose of this study was to evaluate and compare the measurement uncertainties of the TLS Leica ScanStation C10 with the multi station Leica Nova MS50 under two different weather conditions. The uncertainty was calculated using ISO 17123-5:2012, which is an international standard developed for acquiring measurement uncertainties of total stations, to investigate whether this standard could also be applicable for TLS. The survey, which took place outdoor at the University of Gävle, was carried out by scanning targets that were set up in a triangle formation from three stations. Both spheres and HDS-targets were scanned with the TLS while the MS50 only scanned spheres. The targets were scanned four times from each instrument setup. Cyclone was used to find the coordinates on the center of the targets which were used to calculate the uncertainties according to the ISO-standard. The results showed that the 3D-uncertainty of C10 with HDS-target and spheres were 2.9 mm and 3.5 mm during sunny conditions and 1.1 mm and 1.4 mm during cloudy conditions, respectively. In the case of the MS50, the uncertainty was 3.0 mm during sunny and 3.7 mm during cloudy conditions. MS50 demonstrated a higher 3D-uncertainty in both weather conditions due to high uncertainty in the vertical direction. In addition, a chi-two-test carried out on the TLS showed that the calculated uncertainty in plane and height did not significantly deviate from the manufacturer's specified uncertainty when using HDS-targets during cloudy conditions. Furthermore, it was found in the F-test that there was a significant difference in plane and height between two scans with the same instrument and target type in different weather conditions. MS50 did not show any significant difference at all. The results of this study showed that there will be a significantly lower uncertainty when scanning in cloudy conditions. Our conclusion is that it is possible to apply the standard to calculate the measurement uncertainties on TLS and ISO should consider using the same standard for TLS as the total station.

  • 40.
    Abdulkadir, Muna
    et al.
    University of Gävle, Faculty of Education and Business Studies, Department of Business and Economic Studies.
    Bozhko, Kristina
    University of Gävle, Faculty of Education and Business Studies, Department of Business and Economic Studies.
    Driving university towards change and innovation: Impact of national culture and environmental factors2014Independent thesis Advanced level (degree of Master (Two Years)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Aim: To investigate the impact of national culture on the process of managing change and innovation in the sector of higher education and identify what kind of environmental factors could produce a moderating effect on the cultural impact.

    Method: Inductive method and qualitative approach were used. With the purpose of collecting qualitative data, 15 in-depth semi-structured interviews were conducted with employees of Faculty of Education and Business Studies in University of Gävle, Sweden.

    Results & Conclusions: The study suggests that any innovation is a change, while change is always a process and, thus, should be managed as such. Authors draw attention from the process of management of innovation itself towards managing through manipulating by such an influencer as national culture. At the same time authors point out that not everything can be explained on the basis of culture providing a range of potential factors that can strongly moderate the impact of culture.

    Suggestions for future research: Current research is limited by the choice of country, sector of economy, number of studied cases, etc. Investigation of cultural impact on change and innovation management in universities of other countries or the choice of another economic sector would open opportunities for further research.

    Contribution of the thesis: During the study the authors verified a part of the suggested hypotheses demonstrating the strength of the impact that national culture produces on management of change and innovation. Moderating effect of different environmental factors such as employee’s age and position within organizational structure, governmental policies in the sphere of higher education, type of organizational structure and type of leadership, was demonstrated. Authors come up with implications of managing the process of change and innovation through manipulation of cultural impact.

  • 41.
    Abdullah, Zizan
    University of Gävle, Faculty of Education and Business Studies, Department of Educational sciences.
    Ett interkulturellt arbetssätt i förskolan: en studie kring förskollärares utsagor om arbetssätt i mångkulturell verksamhet2016Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Studiens syfte är att undersöka hur fem förskollärare arbetar med ett interkulturellt arbetssätt inom en mångkulturellt förskoleverksamhet.

    Studien har utgått från ett teoretiskt perspektiv på interkulturellt arbetssätt och den teoretiska ansatsen utgörs av ett interkulturellt perspektiv. Interkulturalitet handlar om möten mellan människor från skilda kulturer och en ömsesidig förståelse dem emellan. Skilda kulturer innebär exempelvis att man har olika modersmål, seder och levnadsregler. Jag har gjort en kvalitativ undersökning, där jag har intervjuat fem förskollärare i två förskolor.

    Resultatet visar att förskollärarna hade en liknande syn på interkulturellt arbetssätt och att faktorer som förhållningssätt, arbetsmiljö och lärandemiljö bidrar till att barnen på förskolan ska känna sig mer trygga, nyfikna och motiverade. Därutöver visar resultatet på förskollärares behov av vidare utbildning i frågor som rör barns kultur och modersmål. Betydelsen av att arbeta med utgångspunkt i olika språk i förskoleverksamheten är ytterligare en tendens som framkommer i resultatet. En slutsats som kan formuleras med grund i undersökningens resultat är att förskoleverksamhet som tar tillvara och har sin grund i flera modersmål bidrar till att barn blir sedda, respekterade och motiverade att lära sig.

  • 42.
    Abdullahi, Naima
    University of Gävle, Faculty of Education and Business Studies, Department of Culture Studies, Religious Studies and Educational Sciences.
    Pojkars läslust: en studie av hur pojkar uppfattar och uttrycker sitt intresse för läsning2013Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 43.
    Abebaw, Meron Kebede
    et al.
    University of Gävle, Faculty of Education and Business Studies, Department of Business and Economic Studies, Business administration.
    Matukuta, Willard Kingstone
    University of Gävle, Faculty of Education and Business Studies, Department of Business and Economic Studies, Business administration.
    Technology and Customers’ Experiences in Fashion Physical Stores: The Case of Sweden2018Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Title: Technology and Consumers’ Experiences in Fashion Physical Stores: The Case of Sweden

    Level: Master Thesis in Business Administration

    Author: Meron Kebede Abebaw; Willard Kingstone Matukuta

    Supervisor: Agneta Sundström, PhD

    Examiner: Maria Fregidou-Malama, PhD

    Date: May, 2018 

    Aim: The aim of this study is to analyze whether in-store digital technology in fashion retailers are used to change the customers’ shopping experience and behavior.

    Method: This study chooses qualitative research and used both primary and secondary data collection as method.

    Results and conclusions: This study have reached to conclude that: with the current advances in technology, physical stores can use in-store technology to give customers a new experience; physical stores perceive that using in-store digital technology will change customers shopping experience. Also, marketing mix inputs and technology affect customers’ behavior.

    Suggestions for future research: For future research, how smart fitting rooms may influence the customer experience in the physical store will be important to study. Researchers can also consider understanding customer responses to in-store technology. Finally, a customer’s perspective to both suggestions should improve the knowledge on whether digital solutions are preferred in in-store shopping or not.

    Contributions of the thesis: This thesis contributes to the current state of theories on in-store technology by showing atmosphere has effect on customers’ experiences and behavior in addition to the marketing mix. On the managerial perspective, analyzing the installation of this technology will enable to identify its effect on customers’ experiences and behavior. In addition, on the societal perspective, the behavior of customers will help in motivating younger generation to utilize this in-store technology.

  • 44.
    Abeln, Laura
    University of Gävle, Faculty of Education and Business Studies, Department of Humanities.
    Hur kan vi ta emot nyanlända invandrarelever på bästa möjliga sätt?: En undersökning av Örebro kommuns sätt att ta hand om nyanlända invandrarelever med hänsyn till Skolverkets allmäna råd2012Student paper second term, 5 credits / 7,5 HE creditsStudent thesis
  • 45.
    Abens, Maria
    University of Gävle, Department of Mathematics, Natural and Computer Sciences.
    Outdoor Education in Mathematics: Can it be implemented?2008Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This study examines outdoor education in mathematics at an international school under the IB PYP curriculum. Students spend most of their time indoors with the exception of lunch recess. Outdoor education provides a new and different way for both teachers and students to get fresh air. Research indicates that children who spend more time outdoors suffer less from allergies and other health problems. In the study, teachers and parents were given questionnaires, and three mathematics lessons were conducted outdoors.  Students were later interviewed in groups. Most parents and teachers were positive to the idea of academic outdoor lessons in any subject. Teachers saw some difficulties implementing it because of time, weather and behavioural problems with students outside. Furthermore, they agreed that children should spend more time outside and that the children’s health might benefit. Most of the students enjoyed the outdoor mathematics lessons. They were positive towards outdoor education in any subject.

  • 46.
    Abera, Queen
    et al.
    University of Gävle, Faculty of Health and Occupational Studies, Department of Health and Caring Sciences.
    Abacioglu, Isabella
    University of Gävle, Faculty of Health and Occupational Studies, Department of Health and Caring Sciences.
    Sjuksköterskors attityder och erfarenheter i mötet med patienter med schizofreni: En deskriptiv litteraturstudie2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Bakgrund: Psykisk ohälsa ökar i Sverige och innefattar oika psykiska diagnoser och ohälsotillstånd som påverkats av samhällets olika uppfattningar om psykisk ohälsa. Schizofreni är en psykossjukdom som hör till psykisk ohälsa och de vanligaste symtomen för schizofreni är vanföreställningar och hallucinationer. Patienter med schizofreni behöver vård och stöd. 

    Syftet: Syftet med studien var att beskriva sjuksköterskor inom psykiatrisk verksamhets attityder och erfarenheter i mötet med patienter med schizofreni samt att beskriva de inkluderade artiklarnas undersökningsgrupper.

    Metod: En litteraturstudie med deskriptiv design innehållande tolv vetenskapliga artiklar som söktes i databaserna Cinahl och PsycINFO.

    Huvudresultat: Resultatet visade att sjuksköterskor beskrev att de hade positiva och negativa attityder mot patienter som har schizofreni. Sjuksköterskorna beskrev att de hade fått nya erfarenheter av att se hur patienter med schizofrenis vardag såg ut och hur självständiga patienterna kan vara. Andra sjukksöterskor menade att patienter med schizofreni bör vårdas på sjukhus för att de ska få den vård och behandling som de kan behöva. Undersökningsgruppen i studien var sjuksköterskor inom den psykiatriska verksamheten. I studien diskuteras de inkluderade artiklarnas undersökningsgrupps ålder, kön samt yrkestitel.

    Slutsats: Sjuksköterskorna i de inkluderande artiklarna hade delade meningar om attityder till patienter med schizofreni. Majoriteten av sjuksköterskorna menar att patienter med schizofreni behöver rätt vård,utbildning och stöd från sjukvårdspersonal och familj för att kunna hantera sin livssituation och fullfölja sin behandling.

  • 47.
    Abeurathna, Nuwan
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering. KTH.
    Design and Construction of a Supervisory Control and Data Acquisition System for full scale combustion test facility2013Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    One of major concerns in gas turbine industry is to reduce emissions.  Tow kind of approaches could be identified in the industry to reduce emissions, namely Primary Emission Reduction approach and Secondary Emission Reduction approach. The primary approach concerns emission prevention in combustion, while secondary approach is all about emission cleanup before releasing to the atmosphere.

    Combustion flame temperature highly influences on emissions specially NOx formation.  NOx emission is lower when the combustor operates close to lean flammability limit. Incorporating catalyst to combustor is one of methods to extend flammability limit.  Heat and Power Division at KTH-Royal Institute of Technology in Sweden has developed a test facility to test performances of catalyst in combustion.

    The combustion test facility available at Heat & Power Davison at KTH, consists of high pressure air compressor and air flow control system, air preheating unit and control system, fuel flow control system, combustor unit, and exhaust gas analyzer system. But lack of proper user interface to control and monitor the operation of the test facility through a computer work station was a major concern from experimenters.

    The purpose of the thesis work is to design and construction of supervisory control and data acquisition system for the full scale catalytic combustion test facility.  Labview 2012 is used as the main platform for implementing data acquisition and control system for the test facility. Thermocouples, pressure transducer signals, air flow meter signal are connected to Keithley 2701 data acquisition system and then connected to the computer. Fuel flow controllers are directly connected to the computer via serial port. Air flow control actuator signal is given through ADAM digital to analogue converter.

    Developed GUI is more convenient for users in terms of easy control of air flow, fuel flow and gas sampling probe systems, and monitoring of temperature, pressure measurements and exhaust gas species systems. And also GUI provides web interface to select correct conversion factor, and also to view live data recording. The developed GUI can be accessed through online to monitor the operation. 

  • 48.
    Abeywardana, Asela Janaka
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering.
    Solar - Biomass hybrid system for process heat supply in medium scale hotels in Sri Lanka2016Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    This study aimed at evaluating and demonstrating the feasibility of using Concentrated Solar Thermal technology combined with biomass energy technology as a hybrid renewable energy system to supply the process heat requirements in small scale industries in Sri Lanka. Particularly, the focus was to apply the concept to the expanding hotel industry, for covering the thermal energy demand of a medium scale hotel.

    Solar modules utilize the rooftop area of the building to a valuable application. Linear Fresnel type of solar concentrator is selected considering the requirement of the application and the simplicity of fabrication and installation compared to other technologies. Subsequently, a wood-fired boiler is deployed as the steam generator as well as the balancing power source to recover the effects due to the seasonal variations in solar energy. Bioenergy, so far being the largest primary energy supply in the country, has a good potential for further growth in industrial applications like small hotels. 

    When a hotel with about 200-guests capacity and annual average occupancy of 65% is considered, the total annual CO2 saving is accounted as 207 tons compared with an entirely fossil fuel (diesel) fired boiler system. The annual operational cost saving is around $ 40,000 and the simple payback period is within 3-4 years. The proposed hybrid system can generate additional 26 employment opportunities in the proximity of the site location area.  

    This solar-biomass hybrid concept mitigates the weaknesses associated with these renewable technologies when employed separately. The system has been designed in such a way that the total heat demand of hot water and process steam supply is managed by renewable energy alone. It is thus a self-sustainable, non-conventional, renewable energy system. This concept can be stretched to other critical medium temperature applications like for example absorption refrigeration. The system is applicable to many other industries in the country where space requirement is available, solar irradiance is rich and a solid biomass supply is assured.    

  • 49.
    Abid, Muhammad
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Industrial economics. University of Gävle, Center for Logistics and Innovative Production. KTH, School of Industrial Engineering and Management (ITM), Industrial Economics and Management.
    Global Supply Chain Design: Exploring configurational and coordination factors2015Licentiate thesis, comprehensive summary (Other academic)
    Abstract [en]

    This thesis addresses the topic of global supply chain design. One major challenge concerns how to manage the tension between separation and integration pertaining to the localization of business activities. In this regard Ferdows (2008) worked to create two new production network models (rooted production network and footloose production network). Earlier studies have highlighted the choices that are involved in the network of facilities but lack in providing a comprehensive picture in terms of both configurational and coordination factors that govern the design of global supply chain. There is a need for a conceptual model where factors affecting the design process of a global supply chain can be applied. Two main research questions have been addressed in this study. First, exploring and identifying the factors affecting global supply chain design. Second, investigating the factors that influence the position on the spectrum of rooted and footloose supply chain design.      

    A literature review analysis and multi-case studies have been performed for this study in order to explore the factors. The companies were selected in order to reflect upon the two types of network, i.e., rooted and footloose. The primary data were selected through interviews with the managers.

    This study highlighted that there are many factors that affect configurational and coordination decision areas within a global supply chain. This study categorized the factors and the configurational/coordination decision areas with two main competitive priorities, i.e., cost and differentiation in the form of a “conceptual model.” The study also highlighted the factors in a matrix, which showed their position on the spectrum of rooted and footloose network configurations. For instance, the coordination factors that drive towards a footloose network include: high orchestration capabilities, need access to new technology and knowledge, proximity to suppliers, etc. The configurational factors that drive towards a rooted network include: economic stability, proximity to market, concerns for sustainability issues, high transportation cost, need for high proximity between key functions, need for intellectual property rights protection, etc.

  • 50.
    Abid, Muhammad
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Industrial economics. University of Gävle, Center for Logistics and Innovative Production.
    Bengtsson, Lars
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Industrial economics. University of Gävle, Center for Logistics and Innovative Production.
    Dabhilkar, Mandar
    Stockholm University, School of Business.
    Factors affecting shifts in global supply chain networks: A configurational approach2013In: Proceedings of the 20th International Annual EurOMA conference, Dublin, Ireland, 9-12 June 2013, 2013Conference paper (Refereed)
    Abstract [en]

    In certain situations, global companies strive to take advantage of short-term changes in economic and exchange rates on the never-ending journey of competitiveness. This paper seeks to extend Ferdows’s (2008) production network models by adding the factors affecting shifts between rooted and footloose network configurations. Two companies were selected in order to illustrate the models and reveal other possible factors. The identified factors are differentiated in terms of configuration and coordination and merged in a matrix. The trends and implications on global supply chains are also discussed. 

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