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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
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  • 2.
    aala, elsafei
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building Engineering, Energy Systems and Sustainability Science.
    Numerical study of flow development in the near and intermediate field of a free round jet2020Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
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  • 3.
    Aalbers, Anouschka
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Computer and Geospatial Sciences, Computer Science.
    Öberg, Linn
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Computer and Geospatial Sciences, Computer Science.
    Agil Kravprioritering: En kvalitativ studie om prioriteringsprocesser inom agil mjukvaruutveckling hos Monitor ERP System AB2021Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Prioritizing requirements is one of the most important and influential steps in the creation of a software product. The process is iterative; it takes place during the entire agile software development. Through prioritizing requirements, it is decided which requirements are to be developed, in which order, and why. 

    The aim of this study is to investigate how companies that design software prioritize requirements and to identify which prioritization methods they might use during this process. The purpose of this study is to gain an understanding for why a well-balanced prioritization is important, which specific prioritization factors give value to a product, as well as identifying how these factors are related to the result. The purpose is also to investigate the difficulties that exist in a prioritization process, and to create an overview of some of the most used prioritization methods in agile software development. 

    This study is conducted in collaboration with the software company Monitor ERP in order to analyze the company's prioritization processes used to develop their business management system Monitor. The method used is a qualitative study that consists of observations of meetings about prioritization processes, and semi-structured interviews. Processing of collected material was done by organizing, analyzing, and compiling results according to concepts and categories that emerged from the literature study. The results documents work processes, common goals, prioritization aspects and challenges in the requirements prioritization at Monitor ERP. 

    A well-balanced prioritization proved to be important to be able to deliver the right functionality on time and to be able to provide dependable estimates of development, which in turn leads to customers gaining confidence in both the product and the company. A number of prioritization factors that give value to the Monitor software were identified, many of which contribute to increasing customer satisfaction and product quality. Monitor ERP does not use any specific prioritization methods, but the development philosophy Minimum Viable Product is used as a basis for their prioritization choices. During the prioritization process, challenges such as limited resources, unpredictable tasks, difficulties with time estimation, and a challenge in balancing customer value and customer focus were experienced.

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  • 4.
    Aalbers, Joyce
    et al.
    University of Gävle, Faculty of Education and Business Studies, Department of Humanities.
    Robson, Sarah
    University of Gävle, Faculty of Education and Business Studies, Department of Humanities.
    Litteratursamtal för jämställdhet: En läroboksundersökning utifrån ett genusperspektiv med en diskursanalytisk metod2019Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
    Abstract [sv]

    Denna undersökning syftar till att ta reda på hur kvinnliga och manliga karaktärer samt relationen mellan dem framställs i episka utdrag i läroböcker för gymnasiala svenskkurser. Därtill syftar undersökningen till att ta reda på hur dessa utdrag kan behandlas i litteratursamtal som en jämställdhetsfrämjande arbetsmetod i skolan. För undersökningen användes diskursanalys som metod och analysen genomfördes med ett genusperspektiv. Resultatet visade att totalt 29 utdrag i de nio läroböcker vi undersökt innehöll stereotypa framställningar av manliga och kvinnliga karaktärer som kan diskuteras i ett litteratursamtal för att främja jämställdhet. Resultatet av undersökningen visar att manliga karaktärer framställs som känslokalla och kvinnliga karaktärer som emotionellt instabila. Relationen mellan kvinnliga och manliga karaktärer framställs som ojämställd. Dessa framställningar förklaras genom de genusteoretiska begreppen dikotomi, genussystemet och den heterosexuella matrisen. Vidare visar resultatet att de olika läsarter som aktiveras i ett litteratursamtal möjliggör en jämställdhetsfrämjande arbetsmetod med de valda utdragen. 

  • 5.
    Aaltonen, Daniel
    et al.
    University of Gävle, Faculty of Education and Business Studies, Department of Business and Economic Studies, Law.
    Thegenholm, Nicklas
    University of Gävle, Faculty of Education and Business Studies, Department of Business and Economic Studies, Law.
    Livförsäkringarnas skatterättsliga förutsägbarhet2023Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    I ett skatterättsligt sammanhang delas livförsäkringar i antingen kapitalförsäkringar eller pensionsförsäkringar. Denna uppsats har syftet att redogöra om det föreligger förutsägbarhet med denna delning, gällande kriterierna i 58 kap. inkomstskattelagen (1999:1229). 

    Till uppsatsen har det bestämts att det rättsliga materialet ska bestå främst av lag, förarbeten och rättspraxis. Analysen görs genom rättsdogmatisk metod där det först undersöks varje kriterium utifrån lag, och därefter hur domstolen har dömt. 

    Uppsatsen resulterar i att det inte föreligger förutsägbarhet gällande gränsen mellan livförsäkring och icke-livförsäkring. Däremot föreligger det förutsägbarhet vid gränsdragningen mellan kapitalförsäkring och pensionsförsäkring. 

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  • 6.
    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.

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  • 7.
    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.

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  • 8.
    Aarskog, Florence
    et al.
    University of Gävle, Faculty of Education and Business Studies, Department of Business and Economic Studies.
    Österberg, Ylva
    University of Gävle, Faculty of Education and Business Studies, Department of Business and Economic Studies.
    Vad skiljer sig i uppfattningen gällande gift promotions mellan män och kvinnor?: - En studie kring likheter och skillnader mellan könen2022Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Abstract

    Title: What differences are there regarding the perception of gift promotions between men and women? – A study about similarities and differences between the genders

    Level: Student thesis, final assignment for Bachelor Degree in Business Administration

    Author: Florence Aarskog och Ylva Österberg

    Supervisor: Lars-Johan Åge

    Date: 2022-june

    Aim: The purpose of this study is to examine what similarities and differences might exist between men and women regarding their perceptions of gift promotions. The study is expected to give answers to what is laying behind these perceptions and how these can differ. 

    Method: This work is the result of a qualitative study implemented on men and women between the ages of 20-30 years old. The empirical material makes up the base of the work and is collected through semi structured interviews where the respondents have been requested to picture themselves in different scenarios inspired by everyday life. This is with other words also called a vignette experiment. The empirical material has then been processed to identify the similarities and differences of the two genders perceptions of gift promotions.

    Results and conclusions: The results of this study show that women in general have a more positive attitude towards gift promotions compared to men. This can be seen from the fact that it is more important for women to fulfill long term needs which some gifts can enable. It is also shown that men on the other side are more interested in fulfilling their short-term needs. Both genders find it important that the promoted gift must have value for themselves which women find to a greater extent than men. Another finding of this study is the importance of a good fit between gift and product which is something both genders agree on.

    Contribution of the thesis: This work has contributed to the business administration research field by collecting information about how men and women perceive gift promotions. This information can be used by marketers designing their promotion dealsand campaigns.

    Suggestions for future research: The focus of this study has been on the similarities and differences between men and women within the age gap 20-30 years old. For future research there is an interest to discover what other age groups would have to say, what the perceptions of gift promotions would look like when it comes to services instead of products and finally to compare perceptions of gift promotions online to the ones in physical stores.

    Key words: Gift promotions, sales promotions, gift promotion-perception, marketing-gender differences, marketing-perception

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  • 9.
    Aarskog, Fredrik
    et al.
    University of Gävle, Faculty of Education and Business Studies, Department of Business and Economic Studies, Business administration.
    Heco, Benjamin
    University of Gävle, Faculty of Education and Business Studies, Department of Business and Economic Studies, Business administration.
    Existerar en perfekt förhandlingsstrategi?: En jämförande studie av en fastighetsmäklares beteende.2021Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
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  • 10.
    Aasa, Björn
    et al.
    Umeå universitet.
    Sandlund, Jonas
    Umeå universitet.
    Rudolfsson, Thomas
    University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational Health Science and Psychology, Occupational Health Science. University of Gävle, Centre for Musculoskeletal Research.
    Aasa, Ulrika
    Umeå universitet.
    Acuity of goal-directed arm movements and movement control; evaluation of differences between patients with persistent neck/shoulder pain and healthy controls2022In: European Journal of Physiotherapy, ISSN 2167-9169, E-ISSN 2167-9177, Vol. 24, no 1, p. 47-55Article in journal (Refereed)
    Abstract [en]

    Background

    The main aim was to examine whether patients with persistent upper quadrant pain have higher end-point variability in goal directed pointing movements than pain-free controls when the pointing task is performed in total darkness and under full vision. An additional aim was to study associations between the magnitude of end-point variability and a clinical movement control test battery and self-rated functioning among patients.

    Methods

    Seventeen patients and 17 age- and gender-matched pain-free controls performed a pointing task that evaluated end-point variability of repetitive shoulder movements in horizontal adduction and abduction with full vision, and abduction with no visual information, completed a movement control test battery of neck and shoulder control tests and answered questionnaires.

    Results

    Patients had higher end point variability for horizontal abduction when performed with no visual information. For horizontal adduction the variability was higher, but only when it was controlled for movement time. No significant correlations were found between end-point variability and self-rated functioning, nor between end-point variability and neuromuscular control of the glenohumeral joint.

    Conclusions

    This study provides preliminary evidence that patients with persistent neck/shoulder pain can partly compensate proprioceptive deficits in goal-directed arm movement when visual feedback is present.

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  • 11.
    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.

  • 12.
    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.

  • 13.
    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.

  • 14.
    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.

  • 15.
    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 G.
    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)
  • 16.
    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 G.
    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. 

  • 17.
    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 muskuloskeletala besvär: Självrapporteringsmetoder i stressforskning2004In: Stress-conference, 2004Conference paper (Other (popular science, discussion, etc.))
  • 18.
    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.

  • 19.
    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)
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  • 20.
    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)
  • 21.
    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.

  • 22.
    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. 

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  • 23.
    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.

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  • 24.
    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.

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  • 25.
    Abad, Shayan
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Computer and Geospatial Sciences, Computer Science.
    Gholamy, Hassan
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Computer and Geospatial Sciences, Computer Science.
    Evaluation of machine learning models for classifying malicious URLs2023Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Millions of new websites are created daily, making it challenging to determine which ones are safe. Cybersecurity involves protecting companies and users from cyberattacks. Cybercriminals exploit various methods, including phishing attacks, to trick users into revealing sensitive information. In Australia alone, there were over 74,000 reported phishing attacks in 2022, resulting in a financial loss of over $24 million. Artificial intelligence (AI) and machine learning are effective tools in various domains, such as cancer detection, financial fraud detection, and chatbot development. Machine learning models, such as Random Forest and Support Vector Machines, are commonly used for classification tasks. With the rise of cybercrime, it is crucial to use machine learning to identify both known and new malicious URLs. The purpose of the study is to compare different instance selection methods and machine learning models for classifying malicious URLs.

    In this study, a dataset containing approximately 650,000 URLs from Kaggle was used. The dataset consisted of four categories: phishing, defacement, malware, and benign URLs. Three datasets, each consisting of around 170,000 URLs, were generated using instance selection methods (DRLSH, BPLSH, and random selection) implemented in MATLAB. Machine learning models, including SVM, DT, KNNs, and RF, were employed. The study applied these instance selection methods to a dataset of malicious URLs, trained the machine learning models on the resulting datasets, and evaluated their performance using 16 features and one output feature.

    In the process of hyperparameter tuning, the training dataset was used to train four models with different hyperparameter settings. Bayesian optimization was employed to find the best hyperparameters for each model. The classification process was then conducted, and the results were compared. The study found that the random instance selection method outperformed the other two methods, BPLSH and DRLSH, in terms of both accuracy and elapsed time for data selection. The lower accuracies achieved by the DRLSH and BPLSH methods may be attributed to the imbalanced dataset, which led to poor sample selection.

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    Evaluation of machine learning models for classifying malicious URLs
  • 26.
    Abad, Shayan
    et al.
    Department of Computer and Geo-Spatial Sciences, University of Gävle, 801 76 Gävle, Sweden.
    Gholamy, Hassan
    Department of Computer and Geo-Spatial Sciences, University of Gävle, 801 76 Gävle, Sweden.
    Aslani, Mohammad
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Computer and Geospatial Sciences, Computer Science.
    Classification of Malicious URLs Using Machine Learning2023In: Sensors, E-ISSN 1424-8220, Vol. 23, no 18, article id 7760Article in journal (Refereed)
    Abstract [en]

    Amid the rapid proliferation of thousands of new websites daily, distinguishing safe ones from potentially harmful ones has become an increasingly complex task. These websites often collect user data, and, without adequate cybersecurity measures such as the efficient detection and classification of malicious URLs, users’ sensitive information could be compromised. This study aims to develop models based on machine learning algorithms for the efficient identification and classification of malicious URLs, contributing to enhanced cybersecurity. Within this context, this study leverages support vector machines (SVMs), random forests (RFs), decision trees (DTs), and k-nearest neighbors (KNNs) in combination with Bayesian optimization to accurately classify URLs. To improve computational efficiency, instance selection methods are employed, including data reduction based on locality-sensitive hashing (DRLSH), border point extraction based on locality-sensitive hashing (BPLSH), and random selection. The results show the effectiveness of RFs in delivering high precision, recall, and F1 scores, with SVMs also providing competitive performance at the expense of increased training time. The results also emphasize the substantial impact of the instance selection method on the performance of these models, indicating its significance in the machine learning pipeline for malicious URL classification

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  • 27.
    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.

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  • 28.
    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.

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    Kan en läshund bidra till att positivt påverka barns läsförmåga?
  • 29.
    Abasova, Berivan
    et al.
    University of Gävle, Faculty of Health and Occupational Studies, Department of Social Work and Criminology.
    Lundström, Mia
    University of Gävle, Faculty of Health and Occupational Studies, Department of Social Work and Criminology.
    ”En medvetenhet som vi inte hade tidigare”: Hur socialtjänsten arbetar med sönerna i en familj vid misstanke om hedersrelaterat våld och förtryck2020Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The purpose of this study was to investigate how the social services work with the situation of home-based sons in a family where there is suspicion of honor-related violence and oppression. Five social secretaries in three municipalities who worked on investigative units were interviewed. The theoretical points of the study were intersectionality and system theory. The results show that the social secretaries had varied levels of knowledge regarding the sons' situation in honor related cases. None of the social secretaries had worked on "specific boy cases" and boys were only investigated in cases concerning girls. Challenges for the social secretaries aimed at the difficulty of getting girls to stay in their placements. None of the municipalities had specific interventions directed at the sons. There were general interventions offered through the municipalities' outpatient care. In all municipalities, the interventions were mainly directed towards the protection of the girls or to offer parents family treatment.

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  • 30.
    Abbas, Khizer
    et al.
    University of Gävle, Faculty of Education and Business Studies, Department of Business and Economic Studies.
    Qazafi, Shahzad
    University of Gävle, Faculty of Education and Business Studies, Department of Business and Economic Studies.
    Investigating the impact of knowledge management on HRM performance with moderating role of cultural dynamics: A Multi-group analysis of Family firms in Pakistan and Sweden2022Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Abstract Introduction: Knowledge is the most crucial aspect to gain a competitive advantage in today's world. However, to gain H.R., the effective knowledge is the most challenging part of modern society. The creation, management and usage of information is straightforwardly influenced by a few practices and methodologies of Human Resource Management (HRM). Knowledge management and Human resource management, both disciplines, has a great effect on information financial aspects.

    Research Problem and Questions: This study is done with the intention to gauge the impact of Knowledge management practices on H.R. performances and to check that how cultural dynamics affect the performance of the family businesses.

    Theoretic Area of the Study The theoretic area of the study deals with knowledge management and human resource management output/performance along with cultural dynamic moderating impacts.

    Research Methodology: It is a cross-sectional comparative study, and data is collected usingquestionnaires. The cultural dynamics were compared from Sweden and Pakistan. The tool was adapted from already existing studies, and the reliability and validity were checked beforehand.

    Conclusion: From the study, it is seen that Cultural dynamics act as a moderator amongst the HRM performance and Knowledge Management, and there is a strong relationship between knowledge management practices and HRM performance. The results also show that the correlation between K.M. and H.R. performance is relatively stronger in Sweden while it is moderate in Pakistan.

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  • 31.
    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
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  • 32.
    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.

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  • 33.
    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

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  • 34.
    Abbasi, Karwan
    et al.
    University of Gävle, Faculty of Education and Business Studies, Department of Humanities.
    Al-Mosawy, Samer
    University of Gävle, Faculty of Education and Business Studies, Department of Humanities.
    Vad är en representativ muslim?: Vestmanlands läns tidnings porträttering av islam och muslimer2020Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Vi lever i en värld där människor rör sig mellan länder, där kulturella referenser möts, påverkar, sammanflätas och utvecklas med andra och där den ökade globaliseringen gör att jordens befolkning kommer allt närmre varandra. Samtidigt finns nationsgränser varigenom det upprätthålls och produceras normer och värderingar och därigenom riktlinjer för vad som kan ta sig uttryck samt på vilket sätt. Ökad migration till följd av flykt ifrån krig och förföljelse, en önskan om att leva under bättre levnadsvillkor, ökade försörjningsmöjligheter samt möjlighet att leva nära familj och släktingar har stor påverkan på den etniska sammansättningen i många länder. Som ett resultat av detta träffas människor med skilda uppfattningar och idéer, regelbundet möts människor som tänker olika, som ser olika ut och som lever på skilda sätt. Samhällen vari denna process äger rum förändras genom denna kontakt men även utifrån de bilder som överförs via media. Sveriges lagar styrs inte utifrån några religiösa betingelser men det finns fortfarande religiösa inslag i samhällsstrukturen som vilar på en kristen trosåskådning. Sedan invandringen till Sverige ifrån länder med muslimsk majoritet ökat har islam och muslimer kommit att omdebatteras trots att de utgör en minoritet i landet. Människors uppfattningar påverkas bland annat utifrån det massmedier väljer att förmedla, utgångspunkten för denna studie är att utforska de retoriska konstruktioner som förmedlas genom mediet tidning, specifikt Vestmanlands läns tidning, i sammanhang där islam och/eller muslimer omnämns. Genom att analysera ett 40-tal artiklar i tidningen kommer vi åskådliggöra vilka formuleringar, benämningar och ordval som används och som vi menar konstruerar bilder av den verklighet som skribenter och läsare är en del av. Vi kom fram till att vi på daglig basis försöker utmåla andra grupper än den egna med ondska, detta är problematiskt. Vi identifierar andra individer och grupper med ondskefulla värderingar och därigenom separerar vi oss själva från dem. Det är bland annat detta som får oss att känna ett inkluderande och därmed rättfärdigas avståndstagandet gentemot den andra gruppen vilket i sin tur leder till ökad polarisering. Resultatet visar på att den aktuella diskursen om muslimer och islam bibehålls genom att stereotypa uppfattningar repeteras och bekräftas i det massmediala rummet. Dessa uppfattningar vilar många gånger på ovetenskapliga belägg, det som framförs kan vara rena åsiktsyttringar med syfte till att sälja lösa artiklar

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  • 35.
    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.

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  • 36.
    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.

  • 37.
    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.

  • 38.
    Abbasi, Seyed
    et al.
    Tehran University of Medical Sciences, Iran; Mid-Sweden University; Harvard T.H. Chan School of Public Health, Boston, MA, USA.
    Sundin, Örjan
    Mid-Sweden University.
    Jalali, Arash
    Tehran University of Medical Sciences, Iran.
    Soares, Joaquim
    Mid-Sweden University.
    Macassa, Gloria
    University of Gävle, Faculty of Health and Occupational Studies, Department of Public Health and Sport Science, Public Health Science. Mid-Sweden University.
    Mortality from Acute Coronary Syndrome: Does Place of Residence Matter?2022In: Journal of Teheran University Heart Center, ISSN 1735-8620, Vol. 17, no 2, p. 56-61Article in journal (Refereed)
    Abstract [en]

    Background: Current evidence shows inequality in the outcomes of rural and urban patients treated at their place of residence. This study compared in-hospital mortality between rural and urban patients with acute coronary syndrome (ACS) to find whether there were differences in the outcome and received treatment.

    Methods: Between May 2007 and January 2018, patients admitted with ACS were included. The patients’ demographic, clinical, and laboratory data, as well as their in-hospital medical courses, were recorded. The association between place of residence (rural/urban) and in-hospital mortality due to ACS was evaluated using logistic regression adjusted for potential confounders.

    Results: Of 9088 recruited patients (mean age =61.30±12.25 y; 5557 men [61.1%]), 838 were rural residents. A positive family history of coronary artery disease (P=0.003), smoking (P=0.002), and hyperlipidemia (P=0.026), as well as a higher body mass index (P=0.013), was seen more frequently in the urban patients, while the rural patients had lower education levels (P<0.001) and higher unemployment rates (P=0.009). In-hospital mortality occurred in 135 patients (1.5%): 10 rural (1.2%) and 125 urban (1.5%) patients (P=0.465). The Firth regression model, used to adjust the effects of possible confounders, showed no significant difference concerning in-hospital mortality between the rural and urban patients (OR, 1.57; 95% CI, 0.376 to 7.450; P=0.585).

    Conclusion: This study found no significant differences in receiving proper treatment and in-hospital mortality between rural and urban patients with ACS.

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  • 39.
    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.

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  • 40.
    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.

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  • 41.
    Abbaszadeh Astaraei, Natalie
    et al.
    University of Gävle, Faculty of Health and Occupational Studies, Department of Social Work and Criminology, Social Work.
    Olsson Hedin, Måns
    University of Gävle, Faculty of Health and Occupational Studies, Department of Social Work and Criminology, Social Work.
    Införandet av barnfridsbrott: Utmaningar och arbetspraxis för berörda yrkesgrupper2023Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    In July 2021 the Swedish legal system introduced a new penal provision called barnfridsbrott which can be found in Chapter 4 of the Swedish Penal Code. The new provision stipulates that a family member or any other close relative exposing children to acts of violence, shall be held responsible in the court of law. The aim of this study was to examine how the new provision had affected the professional work with children who has experienced violence between family members or other close relatives. The study included interviews with different professionals such as social workers, children’s investigators from the police and a coordinator from the Swedish welfare agency barnahus. The results showed that the new provision only had resulted in minor changes which also varied between the professionals. Furthermore, the professionals discussed a number of obstacles that hindered effective co–ordination between them. This essay intended to study these results. 

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  • 42.
    Abbo, Mari
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Electrical Engineering, Mathematics and Science.
    Elevers perspektiv på motiverande matematikundervisning i grundskolans tidigare år2020Independent thesis Basic level (degree of Bachelor), 20 credits / 30 HE creditsStudent thesis
    Abstract [sv]

    I denna studie har jag undersökt vilka lärandeaktiviteter som bidrar till en ökad motivation för elevers inlärning. För att göra detta har jag använt mig av en kvalitativ forskningsmetod. Studiens datamaterial utgjordes av enkäter och intervjuer med elever i årskurs 3 i grundskolan. Resultatet av studien visar att det är huvudsakligen två faktorer som motiverar eleverna i deras matematiklärande. Läraren beskrevs som den största påverkande faktorn genom att eleverna jämförde olika lärare med varandra. Eleverna framhöll även hur en varierad matematikundervisning bidrog till att göra undervisningen lustfylld. Det gemensamma för denna studie samt tidigare studier inom området är att en varierad och lustfylld undervisning bidrar till motiverade elever.

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  • 43.
    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.

  • 44.
    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.

     

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  • 45.
    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.

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    Nyanlända barn i fritidshem
  • 46.
    Abd Nikooie Pour, Mina
    et al.
    Linköpings universitet.
    Algergawy, Alsayed
    University Jena, Germany.
    Amardeilh, Florence
    Elzeard.co, Paris, France.
    Amini, Reihaneh
    Data Semantics (DaSe) Laboratory, Kansas State University, United States.
    Fallatah, Omaima
    Information School, University Of Sheffield, Sheffield, United Kingdom.
    Faria, Daniel
    Faculdade De Cîencias, Universidade De Lisboa, Lasige, Portugal.
    Fundulaki, Irini
    Institute Of Computer Science-FORTH, Heraklion, Greece.
    Harrow, Ian
    Pistoia Alliance Inc., United States.
    Hertling, Sven
    University Of Mannheim, Germany.
    Hitzler, Pascal
    Data Semantics (DaSe) Laboratory, Kansas State University, United States.
    Huschka, Martin
    Fraunhofer Institute For High-Speed Dynamics, EMI, Germany.
    Ibanescu, Liliana
    AgroParisTech, Umr MIA-Paris/INRAE, France.
    Jiménez-Ruiz, Ernesto
    University Of London, City, United Kingdom; Department Of Informatics, University Of Oslo, Norway.
    Karam, Naouel
    Fraunhofer Fokus, Berlin, Germany; Institute For Applied Informatics (InfAI), University Of Leipzig, Germany.
    Laadhar, Amir
    Department Of Computer Science, Aalborg University, Denmark.
    Lambrix, Patrick
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building Engineering, Energy Systems and Sustainability Science, Energy Systems and Building Technology. Linköpings universitet.
    Li, Huanyu
    Linköpings universitet.
    Li, Ying
    Linköpings universitet.
    Michel, Franck
    University Ĉote d'Azur, CNRS, Inria, France.
    Nasr, Engy
    University Of Freiburg, Freiburg Galaxy Team, Germany.
    Paulheim, Heiko
    University Of Mannheim, Germany.
    Pesquita, Catia
    Faculdade De Cîencias, Universidade De Lisboa, Lasige, Portugal.
    Portisch, Jan
    University Of Mannheim, Germany.
    Roussey, Catherine
    Inrae Centre Clermont-ARA, Laboratoire Tscf, France.
    Saveta, Tzanina
    Institute Of Computer Science-FORTH, Heraklion, Greece.
    Shvaiko, Pavel
    Trentino Digitale SpA, Trento, Italy.
    Splendiani, Andrea
    Pistoia Alliance Inc., United States.
    Trojahn, Cássia
    Irit and Université Toulouse II, Toulouse, France.
    Vatascinová, Jana
    Prague University Of Economics And Business, Czech Republic.
    Yaman, Beyza
    Adapt Centre, Dublin City University, Ireland.
    Zamazal, Ondrej
    Prague University Of Economics And Business, Czech Republic.
    Zhou, Lu
    Data Semantics (DaSe) Laboratory, Kansas State University, United States.
    Results of the Ontology Alignment Evaluation Initiative 20212021In: Proceedings of the 16th International Workshop on Ontology Matching co-located with the 20th International Semantic Web Conference (ISWC 2021), Virtual conference, October 25, 2021 / [ed] Shvaiko P., Euzenat J., Jimenez-Ruiz E., Jimenez-Ruiz E., Hassanzadeh O., Trojahn C., CEUR-WS.org , 2021, p. 62-108Conference paper (Refereed)
    Abstract [en]

    The Ontology Alignment Evaluation Initiative (OAEI) aims at comparing ontology matching systems on precisely defined test cases. These test cases can be based on ontologies of different levels of complexity and use different evaluation modalities (e.g., blind evaluation, open evaluation, or consensus).The OAEI 2021 campaign offered 13 tracks and was attended by 21 participants.This paper is an overall presentation of that campaign. 

  • 47.
    Abd Nikooie Pour, Mina
    et al.
    Linköping University.
    Li, Huanyu
    Linköping University.
    Armiento, Rickard
    Linköping University.
    Lambrix, Patrick
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building Engineering, Energy Systems and Sustainability Science, Energy Systems and Building Technology. Linköping University.
    A First Step Towards a Tool for Extending Ontologies2021In: Proceedings of the Sixth International Workshop on the Visualization and Interaction for Ontologies and Linked Data: co-located with the 20th International Semantic Web Conference (ISWC 2021) / [ed] Patrick Lambrix, Catia Pesquita, Vitalis Wiens, CEUR Workshop proceedings , 2021, p. 1-12Conference paper (Refereed)
    Abstract [en]

    Ontologies have been proposed as a means towards making data FAIR (Findable, Accessible, Interoperable, Reusable). This has attracted much interest in several communities and ontologies are being developed. However, to obtain good results when using ontologies in semantically-enabled applications, the ontologies need to be of high quality. One of the quality aspects is that the ontologies should be as complete as possible. In this paper we propose a first version of a tool that supports users in extending ontologies using a phrase-based approach.  To demonstrate the usefulness of our proposed tool, we exemplify the use by extending the Materials Design Ontology.

  • 48.
    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. 

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  • 49.
    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.

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  • 50.
    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.

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