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  • 6001.
    Gebauer, Andreas
    et al.
    University of Borås, School of Education and Behavioural Science.
    Pensjö, Mikael
    University of Borås, School of Education and Behavioural Science.
    MED ARBETET SOM LIVSPARTNER: En studie i engagemang till arbetet med hjälp av the Investment Model2009Independent thesis Basic level (degree of Bachelor)Student thesis
    Abstract [sv]

    I ett samhälle där relationer, även sådana av icke romantisk karaktär, har en central roll i människors liv är det viktigt att försöka förstå vad som ligger till grund för individers engagemang i relationer. The Investment Model säger att engagemang i relationer ökar då individer upplever ökade belöningar, minskade kostnader, färre attraktiva alternativ samt att de investerat mycket i relationen. I föreliggande tvärsnittsstudie undersöktes 61 grundskolelärare i Göteborgs Stad, med hjälp av the Investment Model, angående upplevt engagemang till sitt arbete via ett frågeformulär. Studien visade att grundskolelärare med längre anställningstid upplever att de investerat mer i sitt arbete än vad de med kortare anställningstid angav.

  • 6002.
    Gecevic, Dzana
    et al.
    University of Borås, Faculty of Librarianship, Information, Education and IT.
    Nyqvist Johnsson, Louisa
    University of Borås, Faculty of Librarianship, Information, Education and IT.
    Räcker ett rum med böcker?: En kvalitativ studie om rektorers inställning till skolbibliotek i Göteborgs grundskolor2017Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Sweden established a new education act in July 2011, which stipulated that all schools must have a school library. The act, however, lacks substance and does not offer a definition of what a school library actually is. This makes the act open for interpretation by all involved parties. Differences that arise because of the act’s lack of definition causes an unequal access to school libraries among Swedish pupils, which, in turn, can affect their future. This Bachelor’s thesis aim is to increase the knowledge of how principals of municipal primary schools, in the more socioeconomic prosperous areas in Gothenburg, relate to the school library's activities and the school librariesimportance. Focus is on how the principals reason about the significance of school libraries and the considerations that form the basis for the library's funding. We gather the empirical material for this study by using qualitative semistructuredi nterviews and the theoretical framework we useis David V. Loertscher taxonomy for school leaders. By comparing our results to previous research we, once more, conclude that the law is insufficient and that the principals have different opinions about the school libraries due to the ambiguity of the law. The principals are aware of the importance of reading, but they are limited by the economic situation. The biggest obstacle is lack of money, which inturn may give the pupils in Gothenburg different conditions.

  • 6003.
    Gekson, Nathalie
    et al.
    University of Borås, School of Business and IT.
    Selcuk, Serkan
    University of Borås, School of Business and IT.
    En studie om externa betalningssätt och konsumentens osäkerhet.2011Independent thesis Basic level (degree of Bachelor)Student thesis
    Abstract [sv]

    I takt med att e-handel ökar samt direktbetalning i form av kreditkortsbetalning, ökar även antalet bedrägerier. Fler och fler webbutiker använder sig utav externa betalningslösningar för att stärka förtroendet hos konsumenter som genomför en direktbetalning. Nätfiske och andra bedragare som utnyttjar konsumenters identiteter online har ökat. Anti-Phishing Work Group som är en branschförening och som inriktar sig på att eliminera identitetsstöld och onlinebedrägerier, har uppmärksammat att antalet nätfiskebedrägerier har ökat med ungefär 4000 % sedan november 2003. (verisign.se) Vi vill med denna studie ta reda på om konsumenter påverkas av osäkerheten kring betalning vid shopping via Internet och i så fall på vilket sätt. För att få fram det resultat som vi eftersträvar använder vi oss av en enkät samt användartester där vi ställer en fingerad sida mot den officiella sidan för företag i fråga. Användaren fick därefter välja ut den sida som de anser vara den officiella sidan. Under testerna antecknade vi ner reaktionerna samt vad användaren lägger fokus på. Genom att sammanställa resultat från enkät och användartester samt tillsammans med framtagen teori vill vi få fram konsumenternas kunskap och hur de påverkas av problemet. Vid framtagning av enkäten använde vi oss av en tjänst med en provperiod, http://www.surveygalaxy.com.

  • 6004.
    GELANDER, ANNAKARIN
    et al.
    University of Borås, School of Health Science.
    NILSSON, MARTINA
    University of Borås, School of Health Science.
    Att vara drabbad av övervikt eller fetma. Barn och ungdomars upplevelser2009Independent thesis Basic level (degree of Bachelor)Student thesis
    Abstract [sv]

    Fetma är ett samhällsproblem i alla åldersgrupper på många håll i världen. Fetma och övervikt hos barn och ungdomar kan ge både fysiskt och psykiskt negativa effekter. Det finns flera orsaker till att fetma uppkommer, olika faktorer som livsstil, miljö, och arv kan samverka i utvecklingen av fetma. I det svenska samhället är risken för fetma ökad eftersom det finns nästintill obegränsad tillgång till fett- och energirik kost samt att de individuella kraven på fysisk aktivitet är låga.

  • 6005.
    Gelander Dahlin, Josefine
    et al.
    University of Borås, Faculty of Librarianship, Information, Education and IT.
    Hammarberg, Rickard
    University of Borås, Faculty of Librarianship, Information, Education and IT.
    Riktad annonsering: en studie om cookies och user experience2017Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The purpose with our thesis was to find out what effects cookie-based targeted advertisement had on the user experience of web applications. With the research, we also wanted to find out what the users thought about storage and usage of their user data to make it possible with targeted advertising.

    User data is collected every time a user visits a website. This user data can then be used to adapt the advertisement that are shown. This can be done without the user knowing it or even without them knowing they are being targeted at all. In this thesis, we investigate potential user concerns and awareness about cookies and collected data with the help of cookies.

    We have collected our empirical data by means of surveys. We gathered knowledge from existing research through literature reviews and incorporated the knowledge in our survey design.

    We compared the results of our empirical data that we had collected through our survey, with knowledge generated from existing research. We did this to create a picture of the users’ opinions about the effects on the web application of targeted advertisement with the use of cookies and also the users knowledge about cookies and targeted advertising as an individual phenomenon.

    The results of our research are that the awareness about cookies have increased, compared to findings in earlier research. We also found that the majority of the users have a negative view on the subject that their user data is used to adapt the advertisement that are presented to them on web applications. The most common motivation behind this was that the users felt they were being watched and that the illusion of online anonymity has declined.

  • 6006. Gelberg, Jan
    et al.
    Strömsöe, Anneli
    Hollenberg, Jacob
    Radell, Peter
    Claesson, Andreas
    Svensson, Leif
    Herlitz, Johan
    University of Borås, Faculty of Caring Science, Work Life and Social Welfare.
    Improving Survival and Neurologic Function for Younger Age Groups After Out-of-Hospital Cardiac Arrest in Sweden: A 20-Year Comparison.2015In: Pediatric Critical Care Medicine, ISSN 1529-7535, E-ISSN 1947-3893, Vol. 16, no 8, p. 750-757Article in journal (Refereed)
    Abstract [en]

    OBJECTIVE: To describe changes in the epidemiology of out-of-hospital cardiac arrest in Sweden with the emphasis on the younger age groups.

    DESIGN: Prospective observational study.

    SETTING: Sweden.

    PATIENTS: Patients were recruited from the Swedish Registry of Cardiopulmonary Resuscitation from 1990 to 2012. Only non-crew-witnessed cases were included.

    INTERVENTION: Cardiopulmonary resuscitation.

    MEASUREMENT AND MAIN RESULTS: The endpoint was 30-day survival. Cerebral function among survivors was estimated according to the cerebral performance category scores. In all, 50,879 patients in the survey had an out-of-hospital cardiac arrest, of which 1,321 (2.6%) were 21 years old or younger and 1,543 (3.0%) were 22-35 years old. On the basis of results from 2011 and 2012, we estimated that there are 4.9 cases per 100,000 person-years in the age group 0-21 years. The highest survival was found in the 13- to 21-year age group (12.6%). Among patients 21 years old or younger, the following were associated with an increased chance of survival: increasing age, male gender, witnessed out-of-hospital cardiac arrest, ventricular fibrillation, and a short emergency medical service response time. Among patients 21 years old or younger , there was an increase in survival from 6.2% in 1992-1998 to 14.0% in 2007-2012. Among 30-day survivors, 91% had a cerebral performance category score of 1 or 2 (good cerebral performance or moderate cerebral disability) at hospital discharge.

    CONCLUSIONS: In Sweden, among patients 21 years old or younger, five out-of-hospital cardiac arrests per 100,000 person-years occur and survival in this patient group has more than doubled during the past two decades. The majority of survivors have good or relatively good cerebral function.

  • 6007.
    Gelin, Karin
    University of Borås, Swedish School of Library and Information Science.
    Kvinnor i litteraturhistorien: en undersökning av hur kvinnors skrivande och deras litterära verk beskrivs och värderas i litterära översiktsverk för gymnasieskolan2005Independent thesis Advanced level (degree of Master (One Year))Student thesis
    Abstract [en]

    The purpose of this masters thesis is to examine outlines of literary history for students at upper secondary school from a gender studies perspective. Earlier theoretical work concerning outlines of literary history is sparse. There are three dissertations, but none with an explicit gender perspective. The theoretical approach comes mainly from theories in literary historiography and gender research. Also discussed are the following concepts: canon, literary field and literary valuation. This part of the thesis is based on literature studies. The objects of investigation are the three books which according to a mail inquiry are the most used at the Swedish upper secondary school today: Litteraturorientering 1977, Svenska timmar 1991 rev. 1999 and Dikten och vi 1987. The methodology includes both a qualitative perusal of the outlines and a quantitative examination to show how much space female authors get. Important for the qualitative analyses are the two concepts deriving from gender studies: dichotomy and hierarchy. The conclusion of this study is that although firmly stated in the official documents concerning education at the upper secondary school that equality between sexes shall be stimulated and encouraged, the outlines of literary history for students at upper secondary school show a troublesome distortion. Female authors get much lesser space and tokens of dichotomy and hierarchy are frequent in the material. To change this, women must conquer positions in the literary studies and in the literary field. Then women will get their legitimate place in the history of literature.

  • 6008. Gellerstedt, M
    et al.
    Bång, A
    University of Borås, School of Health Science.
    Herlitz, Johan
    University of Borås, School of Health Science.
    Andréasson, E
    Johansson, A
    Does sex influence the allocation of life support level by dispatchers in acute chest pain?2010In: American Journal of Emergency Medicine, ISSN 0735-6757, E-ISSN 1532-8171, Vol. 28, no 8, p. 922-927Article in journal (Refereed)
    Abstract [en]

    AIM: The aim of this study was to evaluate (a) the differences between men and women in symptom profile, allocated life support level (LSL), and presence of acute myocardial infarction (AMI), life-threatening condition (LTC), or death and (b) whether a computer-based decision support system could improve the allocation of LSL. PATIENTS: All patients in Göteborg, Sweden, who called the dispatch center because of chest pain during 3 months (n = 503) were included in this study. METHODS: Age, sex, and symptom profile were background variables. Based on these, we studied allocation of LSL by the dispatchers and its relationship to AMI, LTC, and death. All evaluations were made from a sex perspective. Finally, we studied the potential benefit of using a statistical model for allocating LSL. RESULTS: The advanced life support level (ALSL) was used equally frequently for men and women. There was no difference in age or symptom profile between men and women in relation to allocation. However, the allocation of ALSL was predictive of AMI and LTC only in men. The sensitivity was far lower for women than for men. When a statistical model was used for allocation, the ALSL was predictive for both men and women. Using a separate model for men and women respectively, sensitivity increased, especially for women, and specificity was kept at the same level. CONCLUSION: This exploratory study indicates that women would benefit most from the allocation of LSL using a statistical model and computer-based decision support among patients who call for an ambulance because of acute chest pain. This needs further evaluation.

  • 6009. Gellerstedt, M
    et al.
    Bång, Angela
    University of Borås, School of Health Science.
    Herlitz, J
    University of Borås, School of Health Science.
    Could a computer-based system including a prevalence function support emergency medical systems and improve the allocation of life support level?2006In: European journal of emergency medicine, ISSN 0969-9546, E-ISSN 1473-5695, Vol. 13, no 5, p. 290-294Article in journal (Refereed)
    Abstract [en]

    OBJECTIVES: To evaluate whether a computer-based decision support system could be useful for the emergency medical system when identifying patients with acute myocardial infarction (AMI) or life-threatening conditions and thereby improve the allocation of life support level. METHODS: Patients in the Municipality of Göteborg who dialled the dispatch centre due to chest pain during a period of 3 months. To analyse the relationship between patient characteristics (according to a case record form used during an interview) and the response variables (AMI or life-threatening condition), multivariate logistic regression was used. For each patient, the probability of AMI/life-threatening condition was estimated by the model. We used these probabilities retrospectively to allocate advanced life support or basic life support. This model allocation was then compared with the true allocation made by the dispatchers. RESULTS: The sensitivity, that is, the percentage of AMI patients allocated to advanced life support, was 85.7% in relation to the true allocation made by the dispatchers. The corresponding sensitivity regarding allocation made by the model was 92.4% (P=0.17). The specificity was also slightly higher for the model allocation than the dispatcher allocation. Among the 15 patients with AMI who were allocated to basic life support by the dispatchers, nine died (eight during and one after hospitalization). Among the eight patients with AMI allocated to basic life support by the model, only one patient died (in hospital) (P=0.02). CONCLUSION: A computer-based decision support system including a prevalence function could be a valuable tool for allocating the level of life support. The case record form, however, used for the interview can be refined and a model based on a larger sample and confirmed in a prospective study is recommended.

  • 6010. Gellerstedt, M
    et al.
    Bång, Angela
    Herlitz, Johan
    Could a computer-based system including a prevalence function support emergency medical systems and improve the allocation of life support level?2006In: European journal of emergency medicine, ISSN 0969-9546, E-ISSN 1473-5695, Vol. 13, no 5, p. 290-294Article in journal (Refereed)
    Abstract [en]

    Objectives: To evaluate whether a computer-based decision support system could be useful for the emergency medical system when identifying patients with acute myocardial infarction (AMI) or life-threatening conditions and thereby improve the allocation of life support level. Methods: Patients in the Municipality of Göteborg who dialled the dispatch centre due to chest pain during a period of 3 months. To analyse the relationship between patient characteristics (according to a case record form used during an interview) and the response variables (AMI or life-threatening condition), multivariate logistic regression was used. For each patient, the probability of AMI/life-threatening condition was estimated by the model. We used these probabilities retrospectively to allocate advanced life support or basic life support. This model allocation was then compared with the true allocation made by the dispatchers. Results: The sensitivity, that is, the percentage of AMI patients allocated to advanced life support, was 85.7% in relation to the true allocation made by the dispatchers. The corresponding sensitivity regarding allocation made by the model was 92.4% (P=0.17). The specificity was also slightly higher for the model allocation than the dispatcher allocation. Among the 15 patients with AMI who were allocated to basic life support by the dispatchers, nine died (eight during and one after hospitalization). Among the eight patients with AMI allocated to basic life support by the model, only one patient died (in hospital) (P=0.02). Conclusion: A computer-based decision support system including a prevalence function could be a valuable tool for allocating the level of life support. The case record form, however, used for the interview can be refined and a model based on a larger sample and confirmed in a prospective study is recommended.

  • 6011. Gellerstedt, Martin
    et al.
    Rawshani, Nina
    Herlitz, Johan
    University of Borås, Faculty of Caring Science, Work Life and Social Welfare.
    Bång, Angela
    University of Borås, Faculty of Caring Science, Work Life and Social Welfare.
    Gelang, Carita
    Andersson, Jan-Otto
    Larsson, Anna
    Rawshani, Araz
    Could prioritisation by emergency medicine dispatchers be improved by using computer-based decision support? A cohort of patients with chest pain.2016In: International Journal of Cardiology, ISSN 0167-5273, E-ISSN 1874-1754, Vol. 220, p. 734-738Article in journal (Refereed)
    Abstract [en]

    BACKGROUND: To evaluate whether a computer-based decision support system could improve the allocation of patients with acute coronary syndrome (ACS) or a life-threatening condition (LTC). We hypothesised that a system of this kind would improve sensitivity without compromising specificity.

    METHODS: A total of 2285 consecutive patients who dialed 112 due to chest pain were asked 10 specific questions and a prediction model was constructed based on the answers. We compared the sensitivity of the dispatchers' decisions with that of the model-based decision support model.

    RESULTS: A total of 2048 patients answered all 10 questions. Among the 235 patients with ACS, 194 were allocated the highest prioritisation by dispatchers (sensitivity 82.6%) and 41 patients were given a lower prioritisation (17.4% false negatives). The allocation suggested by the model used the highest prioritisation in 212 of the patients with ACS (sensitivity of 90.2%), while 23 patients were underprioritised (9.8% false negatives). The results were similar when the two systems were compared with regard to LTC and 30-day mortality. This indicates that computer-based decision support could be used either for increasing sensitivity or for saving resources. Three questions proved to be most important in terms of predicting ACS/LTC, [1] the intensity of pain, [2] the localisation of pain and [3] a history of ACS.

    CONCLUSION: Among patients with acute chest pain, computer-based decision support with a model based on a few fundamental questions could improve sensitivity and reduce the number of cases with the highest prioritisation without endangering the patients.

  • 6012.
    Gemmel, Amanda
    et al.
    University of Borås, Faculty of Textiles, Engineering and Business.
    Evers, Elin
    University of Borås, Faculty of Textiles, Engineering and Business.
    Thålin, Viktoria
    University of Borås, Faculty of Textiles, Engineering and Business.
    Svinn i den textila modebutiken: En studie om svinn och vilka konsekvenser det skapar för modeföretag2017Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    In line with the continuing expansion of retail sales, a large amount of product waste is added. Loss is the deficit that the company annually lacks precise statistics in order to correct actual financial outcomes. By investigating different types of losses and how that can occur, we have identified three factors of waste. We also want to investigate what resources would be required to reduce loss of clothes in fashion stores, what motivates people to steal and how the customer's attitude towards shop surveillance looks. The method was conducted with three interviews, an observation and a focus group. Here is the selection of people based on their experience with textile stores. In the study we used a theoretical reference frame based on two theories. The first is routine activity theory, which manages external loss while the other theory, the theft triangle, manages internal loss. We then applied the theories on the empirical material to create an analytical basis. The study's conclusion shows that there are alternative solutions that can be applied to companies to reduce the loss. The reason why these are not used at the moment is because there is a lack of the right commitment andresources.

  • 6013.
    Genheden, Kalle
    et al.
    University of Borås, Faculty of Textiles, Engineering and Business.
    Limani, Bardh
    University of Borås, Faculty of Textiles, Engineering and Business.
    Utveckling av filtermaterial baserat på ätbar svamp - för rening av tungmetaller2018Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The question of environmental responsibilities within industrial processes is now more prominent than ever. An important area where sustainable alternatives are being widely discussed is the water treatment industry, where the separation of heavy metals is of utmost importance. The most common methods of separation as of today have problems such as incomplete separation, high energy input and production of toxic compounds, which results in a need for new methods which are environmentally friendly and economically feasible.   In this experiment we tested the ability to absorb the heavy metals zinc (Zn), copper (Cu) and iron (Fe) in laboratory solutions and stormwater samples with the edible filamentous fungi Rhizopus oryzae. The biomass was tested with and without a treatment process were it was boiled in ethanol, followed by a boiling in NaOH and then washed with acetic acid. The treated biomass showed a better biosorption compared to the untreated when the concentration of 1 gL-1 was used.   The water samples were analyzed using atomic emission spectroscopy with microwave plasma (MP-AES 4200, Agilent Technologies, Santa Clara, CA, USA). The biosorption showed a general decrease as the biomass concentration increased and an optimal concentration of 5 gL-1 was noted. An improvement could be seen for longer retention times for copper and zink with a total reduction of 96% and 43% respectively after 150 min. Iron did not show a distinguishable pattern, However, a 95-99% reduction can be expected after at least 10 min retention time.   The stormwater samples were further contaminated after the biomass treatment procedure. An increase in metal concentration of 114%, 150% and 420% could be seen for zinc, iron and copper respectively.     

  • 6014.
    Gennert Jakobsson, Josefine
    University of Borås, Faculty of Textiles, Engineering and Business.
    Who’s tooth? Houndstooth!: An investigation about howto use houndstooth patternto generate form andsurface with acut-and-weavemethod.2018Independent thesis Basic level (degree of Bachelor of Fine Arts), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    With an interest within colour and print this work developed into questioning their lack of function regarding creating or contributing to from. It investigates how to generate form and surface on a body based on houndstooth pattern. The hypothesis is to find methods that increases a prints expressional possibilities and to find a way to create shape from the prints qualities. It concerns the subject how print, colour and materials relate and affect each other depending on for example saturation, quality and scale.

    Based on the construction of a woven houndstooth a specific method to generate form have been developed, here called cut-and-weave. The result is performed in 7 outfits where this method is applied in various ways. Together they illustrate, not only that a print can give form by manipulating its construction, but also that a print can be enhanced and reinforced by executing it in different ways.

  • 6015. George, G.
    et al.
    Jose, E.T.
    Jayanarayanan, K.
    Nagarajan, E.R.
    Skrifvars, Mikael
    University of Borås, School of Engineering.
    Joseph, K.
    Novel bio-commingled composites based on jute/polypylene yarns: Effect of chemical treatment on the mechanical properties2012In: Composites. Part A, Applied science and manufacturing, ISSN 1359-835X, E-ISSN 1878-5840, Vol. 43, no 1, p. 219-230Article in journal (Refereed)
    Abstract [en]

    This paper mainly investigates the fabrication process of jute yarn reinforced, bidirectional thermoplastic commingled composites (both untreated and treated). Commingling method was used to prepare the composites wherein the Polypropylene yarn (PP yarn) and jute yarn were wound together onto a metal plate in a particular configuration and then compression moulded. The mechanical properties of the composites prepared from chemically treated jute yarn were found to increase substantially compared to those of untreated ones. The surface morphologies of the fracture surfaces of the composites were recorded using scanning electron microscope (SEM). The SEM micrographs reveal that interfacial bonding between the treated jute yarn and the matrix has improved significantly by chemical treatments. The various chemical treatment mechanisms have been supported by FT-IR spectra. Theoretical modelling was used to predict the tensile properties and was found to be in accordance with the experimental results.

  • 6016. George, Gejo
    et al.
    Joseph, Kuruvilla
    Nagarajan, E R
    Jose, E Tomlal
    Skrifvars, Mikael
    University of Borås, School of Engineering.
    Thermal, calorimetric and crystallisation behaviour of polypropylene/jute yarn bio-composites fabricated by commingling technique2013In: Composites. Part A, Applied science and manufacturing, ISSN 1359-835X, E-ISSN 1878-5840, Vol. 48, p. 110-120Article in journal (Refereed)
    Abstract [en]

    Commingled biocomposites based on polypropylene/jute yarns were prepared using commingling technique. The thermal and calorimetric behaviour of these commingled composites were studied with respect to fibre content and various chemical treatments. The thermal stability of the composites was found to be in between that of jute fibre and neat polypropylene (PP). Different chemical treatments increased the thermal stability of the composites due to increased interfacial adhesion between the matrix and reinforcement. Jute yarn acts as nucleating agents and favours the process of crystallisation thereby increasing the crystallisation temperature. Chemical treatments further increased the crystallisation temperature as a result of better interfacial adhesion between jute yarn and PP matrix. The close proximity of jute yarns weakens the mechanical bonds between PP molecules resulting in marginal lowering of melting temperatures. Polarized optical microscopic studies revealed the formation of transcrystalline layer around the jute fibre after 6 h.

  • 6017. George, Gejo
    et al.
    Tomlal Jose, E.
    Åkesson, Dan
    University of Borås, School of Engineering.
    Skrifvars, Mikael
    University of Borås, School of Engineering.
    Nagarajan, E.R.
    Kuruvilla, Joseph
    Viscoelastic behaviour of novel commingled biocomposites based on polypropylene/jute yarns2012In: Composites. Part A, Applied science and manufacturing, ISSN 1359-835X, E-ISSN 1878-5840, Vol. 43, no 6, p. 893-902Article in journal (Refereed)
    Abstract [en]

    Jute yarn reinforced polypropylene commingled composites were prepared by an environmentally benign technique called commingling method in which the matrix fibres and reinforcing fibres are intermingled together with good alignment. The dynamic mechanical properties or viscoelastic behaviour of these commingled composites were studied with reference to fibre content and various chemical treatments. The storage and loss modulus increased with fibre content where as tan δ decreased. KMnO4 and MAPP treated composites showed much higher storage and loss modulus values at all temperatures compared to untreated one. The glass transition temperature showed a marginal increasing tendency with fibre content and chemical treatments. The surface treatment mechanisms were supported by FT-IR spectra and the increase in interfacial adhesion after chemical treatments were supported by SEM images. Theoretical modelling was used to predict the values of storage modulus and tan δ and was found to be comparable with that of experimentally obtained results.

  • 6018.
    Georgson, Ulf
    University of Borås, Swedish School of Library and Information Science.
    Hur läser du? Om några iraniers läsning på svenska respektive persiska2002Independent thesis Basic level (degree of Bachelor)Student thesis
    Abstract [en]

    The purpose of this thesis was to investigate how people from Iran experience reading in their mother tongue, Persian, compared to how they experience reading in Swedish and if there was a difference. The questions to be answered in the thesis were: What is the dominant purpose when people read their mother tongue and when they read in Swedish. Do they read because they need information, because they want to relax or do they, when they read, reflect on their own lives? The method was qualitative, interviews were conducted with 8 Iranians living in Sweden. The theoretical background consists of a description of theories on reading and theories on language and identity. The answers from the interviews reveal that many of the individuals that were interviewed, were reading in an instrumental way, i.e. they read mainly to find information and especially so when reading in Swedish, but at the same time they do reflect on their own life when they read. The results were then compared with theories. Furhammar’s theory on reading habits with the categories ”impersonal instrumental reading”, ”impersonal experience reading”, ”personal experience reading” and ”personal instrumental reading” seem to correspond with the results of the study. The other theories on reading which were used, i.e. Appleyard’s theory that people seek some kind of truth when they read and Ross’ theory that people read to get emotional knowledge, did also in part correspond with the results, but not as well as Furhammar’s theory. The theories on language and identity also seemed to correspond well with the results.

  • 6019.
    Georgsson, Angéla
    University of Borås, School of Health Science.
    Den fördomsfulla vårdrelationen: Litteraturstudie om den blodsmittade patientens upplevelser av vårdarens fördomar2007Independent thesis Basic level (degree of Bachelor)Student thesis
    Abstract [sv]

    Fördomar förekommer i hela samhället och det är viktigt att vårdaren reflekterar över sina fördomar gentemot den blodsmittade patienten för att inte orsaka ett vårdlidande. Bemötandet bör ske utan påverkan av fördomar för att möjliggöra en god vårdrelation och att vården sker på lika villkor. Syftet med arbetet är att belysa hur den blodsmittande patienten upplever vårdarens fördomar, för att möjliggöra en ökad förståelse hos vårdaren. Studien har utförts som en litteraturstudie där kvalitativa artiklar granskats och sammanställts till ett resultat. Det som framkom i resultatet är att den blodsmittade patienten upplever att de bemöts av fördomar från vårdaren. De upplever att vårdaren ser dem som smittfarliga, vilket kan bero på vårdarens rädslor och okunskap om blodsmittan. De anses vara homosexuella, drogmissbrukare eller sexuellt lössläppta och upplever att de möts av stigmatisering/fördomar orsakat av det. De upplever också att de inte erhåller samma vård som andra patienter och inte möts med den respekt och värdighet av vårdaren som de önskade. Detta presenteras i arbetet under rubrikerna: Att betraktas som smittfarlig, att tillhöra en stigmatiserad grupp, att inte erbjudas samma vård som andra patienter och att inte bemötas värdigt. Att möta en patient fördomsfritt kräver en öppenhet hos vårdaren. Detta utvecklas genom att som vårdare vara medveten om sin förförståelse i olika situationer och gentemot olika patienter. Detta möjliggörs genom att utveckla ett reflekterande förhållningssätt och kritiskt tänkande i alla möten med människor.

  • 6020.
    Georgsson, Emmelie
    et al.
    University of Borås, School of Education and Behavioural Science.
    Hedblom, Linda
    University of Borås, School of Education and Behavioural Science.
    Bildens betydelse för barns språkutveckling: En kvalitativ intervjustudie om hur några förskollärare resonerar kring barns språkutveckling genom bild och bildskapande2010Independent thesis Basic level (degree of Bachelor)Student thesis
    Abstract [sv]

    BAKGRUND: 1998 års läroplan för förskolan har sin utgångspunkt i Vygotskijs teori och det sociokulturella perspektivet där man ser kultur, språk och estetiska ämnen som integrerade i förskolans vardag. Samspel och reflektion tillsammans med andra ses då som en förutsättning för lärande. Bild och bildskapande på förskolan ses idag som språkligt och kommunikativt, som ett dokumentationsmaterial men även som ett uttrycksmedel för barn att visa känslor och stärka sin identitet. SYFTE: Studien syftar till att undersöka, analysera, tolka och beskriva hur några förskollärare resonerar kring barns språkutveckling genom bild och bildskapande. Samt om de under sin förskollärarutbildning fått kunskaper om integrering av bild i språkutvecklingsarbete med barn. METOD: I studien används kvalitativ intervju som redskap för att undersöka hur några förskollärare resonerar kring barns språkutveckling genom bild och bildskapande. Bearbetning och analys av insamlad data utgår ifrån Vygotskijs fyra aktivitetskategorier det sociala, det medierade, det situerade, det kreativa. Våra respondenter är sex förskollärare som arbetar på två olika förskolor med barn i åldrarna ett till fem år. Förskolorna fick själva välja ut respondenter. RESULTAT: Resultatet av studien visar att barns språkutveckling genom bild och bildskapande är en ständigt pågående process i vardagen på förskolan. I respondenternas svar framgår det att de använder bilder i de flesta situationer tillsammans med barn och att reflektion och samtal kring bilder och bildskapande ses som något mycket viktigt för barns språkutveckling. Flera av respondenterna anser att de i utbildningen till förskollärare inte fått någon specifik kunskap kring just språkutveckling genom bild och bildskapande. Det mest konkreta arbetssättet med språk och bild är enligt respondenterna att barn ritar bilder till en läst saga, dessa bilder samtalar man sedan kring. Resultatet visar även en koppling till den sociokulturella teorin där man lär tillsammans med andra.

  • 6021.
    Georgsson, Sarah
    et al.
    University of Borås, School of Education and Behavioural Science.
    Hed, Michaela
    University of Borås, School of Education and Behavioural Science.
    Första tiden i förskolan: Sex pedagogers erfarenheter om inskolningar i förskolan2009Independent thesis Basic level (degree of Bachelor)Student thesis
    Abstract [sv]

    BAKGRUND: Hur kan en inskolning gå till och vad finns det för inskolningsformer och inskolningsstrukturer? För att barnets första möte med förskolan ska bli så bra som möjligt finns inskolning att tillgå som är en introduktionstid in i verksamheten. När ett barn kommer som ny till en förskola, behöver pedagogerna ta hänsyn till hans/hennes tidiga anknytning och utveckling för att på bästa sätt bemöta barnet. SYFTE: Syfte är att undersöka hur inskolningar av de yngsta barnen, 1-3 år på sex olika förskolor kan gå till, ur sex pedagogers perspektiv. METOD: Vi har använt en kvalitativ undersökningsmetod med intervju som redskap. Sex pedagoger från förskolans verksamhet intervjuades. RESULTAT: I resultatet framgår att pedagogerna betonar vikten av inskolningens betydelse, för att det nya barnet ska få en trygg start i förskolan. Trygghet är något som poängteras som viktigt under inskolningen. Pedagogerna framhåller föräldrars delaktighet under inskolningen och vikten av att samarbetet med föräldrarna fungerar bra. Även återkommande rutiner är av betydelse för inskolningsbarnet, han/hon känner sig då säkrare i den nya miljön. Vid lämning av barnet på förskolan, är det viktigt med tydliga avsked samt att barnen blir bemötta och tröstade på sätt de föredrar. Pedagoger fungerar som alternativa omsorgspersoner då barnet visats på förskolan och därför arbetar personalen aktivt med att bygga upp en ömsesidighet mellan sig och barnen.

  • 6022.
    Gerle, Marie
    University of Borås, School of Health Science.
    Vård i livets slut: Sjuksköterskors upplevelser av att vårda döende patienter i hemsjukvård - en litteraturstudie2011Independent thesis Basic level (degree of Bachelor)Student thesis
    Abstract [sv]

    Inledning Allt fler människor vill vara kvar hemma för att dö och för att möta efterfrågan krävs samarbete mellan landsting och kommun. Bakgrund. Sjuksköterskor i hemsjukvården ger vård och behandling till patienter i olika skeden i livet, svårt sjuka, döende och lidande människor har effekt på hur sjuksköterskor upplever och hanterar sin yrkesrelaterade tid. Syftet med denna studie är att beskriva sjuksköterskans upplevelser av att vårda vuxna patienter i livets slut i hemsjukvårdens Sverige. Metod är en litteraturstudie till detta har vårdvetenskapliga artiklar sökts som belyser svenska förhållanden mellan åren 2005-2010. Dessa analyserades med kvalitativ innehållsanalys och med induktiv ansats. Resultatet redovisas under fyra huvudteman: tillfredsställelse, ärligt förhållningssätt, missnöje med organisation och bristande ledarskap samt maktlöshet och frustration. Till detta sju subteman: självförtroende och utveckling, erfarenhet ger trygghet, behov av utbildning och kunskap, komma nära patient och närstående, osäkerhet inför samtal, tid som hinder eller möjlighet samt samhörighet i team. Det visade sig att sjuksköterskorna upplever vården med blandade känslor, de upplever att de får bekräftelse och stimulans men också att det är betungande och krävande. Sjuksköterskorna upplevde att tidsbrist och personalbrist hindrade utveckling av goda vårdrelationer och att mer kunskap behövs om symtomlindring. De ansåg att bättre struktur på vårdandet och gemensamma riktlinjer om hur vården ska se ut samt handledning behövdes för att kunna nå god vård och värdig död. Diskussionen baseras på två subteman ur resultatet. Personalbrist och dålig bemanning upplevdes som stressande men att tid även kan användas för att göra patienten delaktig i vården. Sjuksköterskorna behöver mer handledning och bekräftelse på att de utfört ett bra jobb.

  • 6023.
    Gerle, Marie
    et al.
    University of Borås, Faculty of Caring Science, Work Life and Social Welfare.
    Köllås, Pernilla
    University of Borås, Faculty of Caring Science, Work Life and Social Welfare.
    Inte vara rädd för att använda tekniken: Anestesisjuksköterskans erfarenheter och upplevelser av att arbeta i en högteknologisk vårdmiljö2015Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Anestesisjuksköterskans vardag kännetecknas av en omfattande användning av avancerad teknik. Kännedom om teknisk apparatur/utrustning behövs för att kunna behärska teknologier på ett tryggt och säkert sätt. Den tekniska utvecklingen inom elektronik har sedan andra världskriget utvecklats snabbt, det är en möjlighet som tagits väl vara på när det gäller övervakningsutrustning inom sjukvården. Narkosapparater och pumpar skiljer sig åt mellan sjukhus och tillverkare, vilket skulle kunna skapa en osäkerhet av att inte behärska sin utrustning, därtill kommer läkemedels ordinationer som bestäms av anestesiläkare, men läkemedelsdosen administreras av anestesisjuksköterskan. Syftet med uppsatsen var att belysa anestesisjuksköterskors erfarenheter och upplevelser av att arbeta i en högteknologisk vårdmiljö. Metoden är kvalitativ med induktiv ansats, där datainsamlingen har utförts med hjälp av nio semistrukturerade intervjuer.

    Resultatet presenteras i fyra kategorier: Att vara del i en högteknologisk utveckling, att utveckla en klinisk blick, teknik som både säkerhet och falsk trygghet och anestesisjuksköterskans personliga utveckling. Samtliga kategorier är uppbyggda av ett antal tillhörande subkategorier. Den tekniska utvecklingen inom området anestesi har sedan 70-talet utvecklats från att anestesisjuksköterskan gjorde det mesta förhand till dagens moderna anestesiapparater. Apparaturens utveckling innebar att anestesisjuksköterskorna fick händerna fria till att utföra andra sysslor som till exempel dokumentation. Deras kliniska blick som fortfarande är den viktigaste faktorn kompletteras med mätvärden från övervaknings utrustning. Anestesisjuksköterskorna utvecklar en klinisk blick genom att bygga erfarenheter och samla kunskap över tid. Den avancerade anestesiapparaturen utnyttjas inte till fullo för att göra dessa små finjusteringar som kan optimera varje unik anestesi, utan flertalet anestesisjuksköterskor använder så mycket som de behärskar för att genomföra en anestesi på ett säkert och patientvänligt sätt. Intresset för teknik är gemensamt för de flesta av informanterna och tekniska prylar är en del i vardagen även privat.

  • 6024.
    Gerstädt, Adrian
    et al.
    University of Borås, Faculty of Textiles, Engineering and Business.
    Morgén, Emil
    University of Borås, Faculty of Textiles, Engineering and Business.
    Mekaniska egenskaper hos mjuka heterogena biomaterial: Tillämpning på polyuretanskum2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This bachelor thesis deals with the implementation of a degree in mechanical engineering at the University of Borås. The thesis work has been conducted at SP Technical Research Institute of Sweden AB at the departments SP Safety – Mechanical Research in Borås and Gothenburg and Food and Bioscience in Gothenburg. The major part of the work has been done at the Mechanical Research department in Gothenburg. The aim of the thesis work was to combine analysis of experimental image data from confocal laser scanning microscopy and mechanical load data from a tensile cell that gradually deforms a polyurethane foam with modelling of the mechanical properties of the foam using finite element methods (FEM). The purpose was to determine Young’s modulus and Poisson's ratio. A crucial part of the project was also to facilitate a high degree of repeatability and further development of the method through establishing routines and best practices for how to implement different parts of the method. There is currently a lack of measured or calculated properties for polyurethane foams, as is the case also for many other soft heterogeneous biomaterials. This implies that the developed method has potential use for determining material parameters and analyzing behavior also for other materials of this type. Determining the material parameters facilitates strength calculations on these materials and makes it possible to correlate material parameters to process parameters during manufacturing to optimize material performance. The polyurethane foam was placed in a tensile cell, exposed to a force and slowly, gradually deformed. Using a confocal microscope, the entire deformation process can be observed at high resolution. The obtained image series were then analyzed using DaVis, a software that can perform so called digital image correlation analysis where local displacements could be determined. In order to perform the finite element calculations, the material structure was divided into an element mesh using the software OOF2. The element mesh and displacement data were then imported to Matlab and the plugin module CalFEM. Using CalFEM, a material model involving Young’s modulus and Poisson’s ratio was created. Young’s modulus was determined to be 4.6 MPa and Poisson’s ratio 0.33 ± 0.06. Using the available data, the model was insufficient to determine both parameters simultaneously. Therefore, Poisson’s ratio was determined through manual analysis of the image series. The method can be improved and further developed mainly by analyzing several samples to account for local fluctuations in the material structure and by using three-dimensional imaging methods. The latter would also open up for creating a three-dimensional model of the material.

  • 6025.
    Gerth, Lena
    University of Borås, Swedish School of Library and Information Science.
    Intervju med Astrid Pettersson från Holmsund1111Other (Other (popular science, discussion, etc.))
    Abstract [en]

    Interview with Astrid Pettersson. The interview was conducted by Lena Gerth, student of the Swedish School of Library and Information Science in Borås.

  • 6026.
    Getaneh Melke, Hermela
    et al.
    University of Borås, School of Health Science.
    Askarian, Zahra
    University of Borås, School of Health Science.
    Bröstcancerdrabbade kvinnors upplevelser i samband med cytostatikabehandling2010Independent thesis Basic level (degree of Bachelor)Student thesis
    Abstract [sv]

    Bröstcancer är den vanligaste cancerformen hos kvinnor och ca 7000 nya fall diagnostiseras årligen i Sverige. Cytostatikabehandling är en vanlig behandlingsform mot bröstcancer och många kvinnor upplever den som påfrestande på grund av dess biverkningar. De mest förekommande biverkningarna är håravfall, illamående, kräkningar, uttalad trötthet, rädsla, depression samt ångest. Sjuksköterskor kommer någon gång i sitt arbete i kontakt med bröstcancerdrabbade kvinnor som genomgår cytostatikabehandlingen. Om cytostatikabehandlade kvinnors kunskapsbehov inte uppmärksammas finns det risk att dessa kvinnor upplever vårdlidande. Syftet med studien är att beskriva bröstcancersjuka kvinnors upplevelser i samband med cytostatikabehandling. Artikelsökningen genomfördes i databaserna Cinahl, Blackwell Synergy- se Wiley Interscience, PubMed och PsycINFO. Studien baseras på elva kvalitativa artiklar och innehållanalysen på samtliga artiklar gjordes utifrån Evans (2002) analysmodell. Resultatet presenteras i tre huvudteman och sju subteman. Huvudteman är kroppsliga upplevelser, psykiska upplevelser och upplevelsen av ett förändrat socialt sammanhang. Utifrån kvinnornas upplevelser hade kemoterapin en negativ inverkan på många områden såsom fysiska, psykiska och sociala tillstånd. Vi anser att med en ökad kunskap hos sjuksköterskor kring cytostatikabehandling utifrån kvinnornas upplevelser kan onödigt lidande minskas och därmed kan en bättre och individuell anpassad vård ges.

  • 6027. Geyrhofer, Johanna
    et al.
    Farmand, Mohammedreza
    Mossavi, Sanaz
    Schell, Sabrina
    Martinovski, Bilyana
    University of Borås, School of Business and IT.
    Cultural influences and differences for international students in Sweden2009In: Proceedings of 16th NIC Conference on Intercultural Communication, Borås, Sweden, 2009Conference paper (Other academic)
  • 6028.
    Gezelius, Maria
    et al.
    University of Borås, Swedish School of Library and Information Science.
    Griph, Anna
    University of Borås, Swedish School of Library and Information Science.
    Folkbibliotek och TV-spelande ungdomar en studie i bibliotekariers attityder och värderingar när det gäller ett nytt medium på biblioteket2006Independent thesis Advanced level (degree of Master (One Year))Student thesis
    Abstract [en]

    The aim of this Masters thesis is to examine librarians attitudes and values when it comes to the question if a new media, video games, should be introduced at the library or not. Video games are here seen as media primarily for youths. In our study we also wanted to study the discussions of quality and purchase, when computer games were introduced at the library. In order to answer our questions we conducted nine interviews with librarians working with children and youths, in eight libraries. By analysing their statements, using Maj Klassons theory where she defines the librarians role in three different strategies, we could demonstrate how the librarians reason when it comes to video and computer games, youths, quality and purchase. The results show that the strategy which was mostly used by the librarians, was the dialogue model. There is an aspiration to see new perspectives and to meet the demands and expectations of the library users, which to a large extent relies on the democratic values of the library. Further more, we could show that few of the librarians, were to be found in the marketing model and that video and computer games were the least priority area. Quite a few of the librarians statements ended up in the guardian model and we can conclude that they are concerned about the position of the book and the literary values. These values are transferred to other media, like video and computer games.

  • 6029.
    Ghaderi Najafabadi, Mina
    University of Borås, School of Business and IT.
    Health Information Exchange Problems within Different Health Organizations, Introducing Super Clinic2013Independent thesis Advanced level (degree of Master (Two Years))Student thesis
    Abstract [en]

    The growth of e-health system has influenced the way health organizations conduct their business. Communication between these systems is one of the most significant factors since a more efficient communication system can improve an organization performance. Nowadays the health organizations make a lot of investments to deploy a suitable information and communication technology to meet their goals. This study investigates the health information exchange within different health information systems. We first carried out a theoretical study to find out the relevant concepts by reviewing the related literature and analyzing them. As a result of our theoretical study we investigate and redesign the basic model of the “Super Clinic” as a new model for health information exchange system. Then we conducted an empirical study to validate the result from the theoretical study which helped us to narrow down our research area. We revised our proposed theoretical model by the lesson learnt from our empirical study results. Three interviews were conducted with experts and the outcomes were analyzed using comparative analysis. These interviews allowed us to outline the most important factors of successful health information exchange systems (i.e. “Super Clinic”). They also helped us to design a central hub (i.e. “health Hub”) for communication and information exchange between different information systems. This revised model of Super Clinic (with the central hub) could be going under more investigation in future works.

  • 6030.
    Ghafouri, Leyla
    et al.
    University of Borås, School of Health Science.
    Olsson, Sandra
    University of Borås, School of Health Science.
    Att vårda en person som drabbats av stroke: Närståendes upplevelser2011Independent thesis Basic level (degree of Bachelor)Student thesis
    Abstract [sv]

    Stroke är en av de vanligaste dödsorsakerna i världen och utgör en av de vanligaste anledningarna till funktionsnedsättning bland vuxna personer. Varje år drabbas ca 30 000 personer i Sverige. Efter behandling på sjukhus är det vanligt med utskrivning till hemmet, där fortsatt rehabilitering sker. Närstående, främst make/maka förväntas ofta ta det största ansvaret för omvårdnaden i hemmet. Därför är det viktigt att informera och göra de närstående delaktiga i omvårdnaden. När en person insjuknar i stroke kan livssituationen förändras och livskvalitén påverkas hos både personen som drabbats av stroke och de närstående. Syftet med uppsatsen är att beskriva hur närstående upplever vardagen när en person som drabbats av stroke vårdas i hemmet. Uppsatsen är en kvalitativ litteraturstudie baserad på vetenskapliga artiklar, där artiklar från olika länder är inkluderade. I resultatet identifierades tre huvudteman och sju sub-teman vilken presenteras som att uppleva förändringar i relationer, upplevelser av en bristande sjukvård samt hur de närstående upplever ett ökat ansvar. Uppsatsen lyfter även de närståendes behov av att få dela med sig av tankar och känslor samt behovet av stödgrupper. Vidare diskuteras sjuksköterskans pedagogiska kunskaper som särskilt betonar uppgiften av att identifiera behovet av kunskap samt att informationen bör anpassas till mottagaren.

  • 6031.
    Ghalambor, Afrooz
    et al.
    University of Borås, School of Engineering.
    Latifi, Madeleine
    University of Borås, School of Engineering.
    Designing a Process Measurement Program as a part of Measurement & Analysis Process Area of CMMI Level 22009Independent thesis Advanced level (degree of Master (One Year))Student thesis
    Abstract [en]

    This master’s dissertation stands as a guideline for defining a measurement program for GEEE that can be piloted at the Gothenburg site EEEG. The measurement program is based on the “CMMI process area Measurements and Analysis, Level 2”. The proposed measurement program is designed in such a way that is applicable for repeatable process measurement with potential minor alters depending on the nature of the process being examined. Major effort has been made on creating a program that not only collects the numerical data but also delivers substantial results in terms of goal setting, data analysis and decision making. Designing a process for measurement facilitate organizational strategy toward process improvements. This measurement program is designed with the help of some well-known methods such as: GQM (Goal-Question-Metric), PDCA (Plan-Do-Check-Act) and ETVX (Entry-Task-Validation- Exit) where five major phases are resulted, namely; Identify, Define, Collect data, Analysis, Evolve, thereafter embedded in a template-shaped tool. The whole template, after a complete fulfillment, would provide the organization with a guideline to achieve the organizational objectives. It is vital to mention that this template itself does not improve the processes. It only shows the status of the chosen project/process after having the filled template executed. What this template generates is to provide the stakeholders with necessary information and basis to make informed decision afterwards in order to improve the chosen processes/projects. Since the processes in “Maturity Level 2 of CMMI” are project based, it is important the status of processes can be measured and communicated. This procedure plays a crucial role in creating a platform for moving to the next maturity level.

  • 6032.
    Ghasemi, Mehdi
    University of Borås, School of Engineering.
    Skapande av monteringsanvisningar till SPC-spel Ett övningsspel för att tillämpa “Statistical Process Control”2011Independent thesis Basic level (degree of Bachelor)Student thesis
    Abstract [sv]

    ”Statistical Process Control” har för syfte att genom av statistiska metoder, mäta och analysera variation för att upptäcka särskilda orsaker till variation i processen och sedan genom eliminering av de orsakerna, förbättra processens kapabilitet. Inom SPC finns några begrepp som kräver lite förståelse, till exempel olika typer av variation, skapandet av styrdiagram och tolkning av detsamma för att hitta särskilda variationer. Till författarens kännedom finns idag inget spel som på ett enkelt och konkret sätt underlättar förståelse av dessa teorier. Inom område ”Lean Produktion” finns ett spel (”Lean-spelet”) som har för syfte att förklara begreppet slöseri, olika typer av slöseri i produktionsprocessen och hur man kan förbättra produktionen genom eliminering av de olika slöserierna inom produktionsprocessen. Syftet med detta examensarbete är att se på möjligheterna till ett liknande spel för SPC. Utgångspunkten för skapande av sådant spel var design av en monteringsprocess som färdiggör en produkt (i detta fall en traktor). Montering av traktorn sker på fyra stationer där de första tre stationer (Förmontering, Monteringslina A och Monteringslina B) monterar några partier av traktorn och en slutmontering som monterar ihop bakvagn och framvagn. Efter slutmonteringen finns en kvalitetskontroll som har för uppgift att kontrollera om det finns defekta delar på den färdiga traktorn och samtidigt en station för processtyrning. Här mäts avståndet mellan traktorns skopor och värde av mättningen förs in i en lista. För varje station finns det några anvisningar som med hjälp av bilder och ord försöker att förklara hur monteringen sker vid varje station och vilken uppgift varje station har. De bilder och anvisningar för montering av traktorn har designats och ritats med hjälp av datorprogrammet Pro-Engineering. Spelet genomförs sedan i form av en tävling mellan två eller fler lag. Det finns en spelledare som ser över tävlingen, tar tid för spelet och ger poäng för olika moment. Poängsystemet är sådant att efter avslutad spelomgång plottar vardera lag ett och MR diagram – ju mindre variation, ju mer poäng erhålls. Det lag som monterar många traktorer med mindre antal defekta och utan särskilda variationer; det vill säga att monteringsprocessen är under kontroll; blir vinnare. Spelet sattes på prov för första gången mellan två lag under en lektion i statistisk process styrning och resulterade i att studenter med hjälp av spelet fick prova på en praktisk övning i av variation, skapande och tolkning av styrdiagram.

  • 6033.
    Ghasemi, Sepideh
    University of Borås, Faculty of Caring Science, Work Life and Social Welfare.
    Förlossningsvårdens betydelse för amningsstarten: Upplevelser och faktorer ur barnmorskans perspektiv2015Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    I barnmorskans kompetensområde ingår att främja tidig amningsstart och ge amningsstöd under barnets första vakenhetsperiod strax efter födelsen. Det finns evidens för att tidig amningsstart leder till helamning under en längre tidsperiod. Det är därför viktigt att den första amningen sker inom 120 minuter efter barnets födelse. Förlossningsbarnmorskans stöd i samband med den första amningen har stor betydelse för att detta ska möjliggöras. I föreliggande studie beskrivs en rad faktorer som både stör och främjar den tidiga amningsstarten. Barnmorskor har enligt sin kompetensbeskrivning samt direktiv från WHO och UNICEF ett tydligt ansvar att främja amning inom denna tidsram. Syftet med denna studie är att beskriva förlossningsbarnmorskans stödjande roll i samband med amning inom 120 minuter efter födelsen och identifiera de faktorer som upplevs påverka stödet. Sammanlagt 81 förlossningsbarnmorskor har deltagit i denna enkätstudie som analyserades med en kombinerad kvalitativ och kvantitativ metod.

    I resultatet framkom att förlossningsbarnmorskor prioriterar ett närvarande och informativt amningsstöd. De involverar partnern och eftersträvar att genom närvaro och dialog vara ett stödjande och stärkande stöd. Stort fokus läggs på främjandet av barnets naturliga amningsbeteende. Barnmorskorna uppmuntrar föräldrarna att vara närvarande och observanta på barnets signaler. Så långt det går undviks störande vårdrutiner och ett handgripligt amningsstöd.  Det mest framträdande i resultatet är att den pressade arbetssituationen inom förlossningsvården tvingar barnmorskor att välja mellan ett handgripligt amningsstöd eller ett uteblivet stöd. Denna resursbrist och stressiga arbetsmiljö leder i sin tur till uppgivenhet hos barnmorskor. Resultaten i denna studie föranleder diskussion kring resursbristens negativa effekter på amning ur ett långtidsperspektiv. Effekterna av en senarelagd amningsstart, ett uteblivet amningsstöd och negativ första amningsupplevelse är troligen en sjunkande amningsfrekvens. Teoretiskt sett är den rådande resursbristen inom svensk förlossningsvård ett direkt hot mot folkhälsan då en eventuell sjunkande amningsfrekvens skulle bidra till en fortsatt ökning av olika metabola sjukdomar, hjärt-kärlsjukdomar och cancer.

  • 6034.
    Gholizadeh Aghdam, Mehdi
    University of Borås, School of Engineering.
    Extraction of chitosan from Fungal cell wall by Sulfuric acid Studying the effect of Deacetylation degree and temperature on recovery chitosan2010Independent thesis Advanced level (degree of Master (One Year))Student thesis
    Abstract [en]

    The goal of this project is extraction of chitosan optimally by surveys of temperature changes along with 1% Sulfuric acid utilization. Microbial chitosan is isolated as a bio-component from cell wall of two kinds of Zygomycetes by some extraction methods. This project compares ability of two type Fungi (R. pulusilus and M.indicus) from Zygomycets for production of chitosan. To extract of chitosan is a combinational method with 40 %( w/w) Hydroxyl sodium for cell disruption and diluted Sulfuric acid (1% w/v) for chitosan extraction from cell wall as major chemical components. 40% NaOH is used to get different degrees of deacetylation (DD) from chitin for chitosan. In addition, it is examined 1% Sulfuric acid in a combination of temperature factor changes. It is needed dialysis for chitosan purification from bonded phosphate groups. Standard curves of acetic acid experiences for DD and water phosphate determination were accomplished. It has resulted if degree of deacetylated chitin is about 50%; it has an average lost more than 50% in 1% (v/v) Sulfuric acid, hence less recovery as a no privilege that it can be relapsed by acetone in chitosan solution. Factor of temperate in same times shows important effect on extraction yield of chitosan by 1% Sulfuric acid. Extracted chitosan in 120℃ has DD about 50%. Absolutely, its solubility will be more and it needs to an intricate solution for separation of chitosan from phosphate bonds as a major impurity by dialysis, but in 90℃, DD of chitosan is more with less solubility in water. Between two Fungi, in experienced temperatures, hence, R. pulusilus has more recovery about 0.87/AIM (g/g) in 90℃, which have more much DD than 50%, and M.indicus has 0.79/AIM (g/g) in 120℃ that it has DD about 50%.

  • 6035.
    Gholizadeh, Atefeh
    et al.
    University of Borås, School of Education and Behavioural Science.
    Solevska, Mence
    University of Borås, School of Education and Behavioural Science.
    Flerspråkighet: En börda eller en gåva?2009Independent thesis Basic level (degree of Bachelor)Student thesis
    Abstract [sv]

    Sverige är ett mångkulturellt land med en ständig invandring. Idag är allt fler barn flerspråkiga och behöver modersmålsundervisning. Vår studie fokuserar på grundskoleelevers uppfattning till sitt modersmål och modersmålsundervisningen. Lev Vygotskijs sociokulturella förhållningssätt är studiens huvudsakliga teoretiska utgångspunkt. Vygotskij koncentrerar sig på individen och dess samspel med omgivningen. Han berör inre och yttre faktorer som är av betydelse för barnets utveckling så som; språk, fantasi och kreativitet. För att tydliggöra hur grundskoleelever uppfattar sitt modersmål och modersmålsundervisningen har vi använt oss av två kvalitativa metoder; språkporträtt och intervju. Språkporträtt har varit betydelsfull i vår studie eftersom vi via denna metod kunnat öka elevernas medvetenhet och förståelse kring de språk som finns representerade inom dem. Intervju användes som ett komplement till språkporträttet. Urvalsgruppen bestod av tio elever i åldern nio till tio år som hade modersmålsundervisning. Vårt resultat visade att majoriteten av eleverna behärskade mellan två till fem olika språk. Elevernas inställning till modersmålet var till största del positiv men de hade en ganska negativ inställning till modersmålsundervisningen. En sak som vi uppmärksammade var att läraren hade en avgörande roll för deras uppfattning. Majoriteten av eleverna upplevde att det var deras föräldrar som ville att de skulle gå på modersmålsundervisning. Vi kunde i elevernas språkporträtt se att de två kroppsdelar som dominerade vid modersmålsplaceringen var hjärtat och huvudet. Detta kunde kategoriseras som affektiva och intellektuella kopplingar till modersmålet.

  • 6036.
    Gholizadeh, Laili
    University of Borås, School of Engineering.
    Enhanced Butanol Production by Free and Immobilized Clostridium sp. Cells Using Butyric Acid as Co-Substrate2010Independent thesis Advanced level (degree of Master (One Year))Student thesis
    Abstract [en]

    Butanol production by four different Clostridium sp. strains was investigated using glucose P2-medium supplemented with increasing concentrations of butyric acid, added as cosubstrate. Batch fermentations were carried out in serum bottles (freely-suspended cell cultures) and fibrous-bed bioreactor (FBB) with medium recirculation (immobilized cells). Butyric acid clearly revealed to inhibit cellular growth with all specific growth rates declining upon the increase of butyrate concentrations. However, the presence of low and moderate levels in the medium can readily enhance the ABE-fermentation and increase butanol production through a shift induction towards the solventogenic phase controlled by the medium pH. In all cases it was found that 4.0 g⋅l-1 is the optimal concentration of butyrate that maximizes the yields for all ABE-solvents and butanol productivities. The non-mutant C. acetobutylicum ATCC 824 was singled out as the most efficient butanol productive strain among all bacteria tested (10.3 g⋅l-1 butanol versus 0.72 g⋅l-1 with and without 4.0 g⋅l-1 butyrate, respectively) showing a productivity augment in the order of 0.078 g⋅l-1⋅h-1 (78.5%) and yields of 0.3 g⋅g-1 from substrate and 7.6 g⋅g-1 from biomass versus 0.072 g⋅g-1 and 0.41 g⋅g-1 with and without the optimal butyrate concentration, respectively. This strain also revealed the best overall tolerance over increasing butyrate concentrations up to ∼6.0 g⋅l-1 and the highest glucose uptake (65.5%) among all bacteria. Furthermore, the beneficial effects of butyric acid were also observed through the use of a fibrous bed-bioreactor when the mutated strains of C. beijerinckii ATCC 55025 and BA 101 were tested. The use of this immobilized cell system effectively improved butanol production over the free system with butanol titers in the fermentation broth around 11.5 g⋅l-1 and 9.4 g⋅l-1 for the two bacteria, respectively, roughly doubling the values attained with the corresponding suspended cell cultures when the media were supplemented with 4.0 g⋅l-1 of butyrate. All these results confirm the enhancement of butanol formation using either free or immobilized cell cultures supplemented with butyric acid concentrations up to 4.0 g⋅l-1 in the media.

  • 6037.
    Ghoncheh, Shahin
    University of Borås, School of Engineering.
    Measurement of ethanol in microdialysis samples by means of enzymatic assay using alcohol dehydrogenase and NAD2008Independent thesis Advanced level (degree of Master (One Year))Student thesis
    Abstract [en]

    The enzymatic method for ethanol measurement can detect very low concentration of ethanol at samples, consequently it can’t be applied for samples with high concentration and implies as very sensitive method at limited range of detection. The alcohol dehydrogenase method is based on oxidation of alcohol in the presence of ADH as enzyme and NAD+ as coenzyme and formation of acetaldehyde and NADH that can be monitored by spectrophotometric measurement at 334,340 or 365 nm wavelengths. Ethanol +NAD+ ADH↔ Acetaldehyde +NADH+H+ For optimum conditions of measurements all the parameters that affect the enzymatic reaction including temperature, pH, trapping agent for product and proper mixing need to be optimized. In order to calculate the unknown concentration of ethanol in a sample based on this method,it is crucial to find right mathematical model to calculate the unknown concentrations of ethanol in the sample using a mathematical equation that generalizes relationships among the reactants in the reaction including the reaction products. In most enzymatic reactions many parameters are involved meaning that the reaction seldom follows simple linear relation between concentration and signal. Four-parameter logistic model is well suited for modeling sigmoid relationships frequently found in biology. The aim of this project is determination of ethanol at microdialysis samples and the fundamental reason for developing the present measurement method was to study changes in blood flow in living tissues using wash out of the very dissolvable ethanol as a flow marker using the Microdialysis technique. Result from this measurement technique for microdialysis samples shows that ethanol can be detected at range of 0,5-16mmol/L and whole detected concentration for different samples during one microdialysis test follows the inverse relation of blood flow changes in tissue. Also the reported result from Urea test as general method for studying blood flow changes and ethanol test for microdialysis sample has been compared and leads to this conclusion that ethanol techniques is as reliable tool for studying blood flow changes.

  • 6038.
    Ghorbanian, Sara
    et al.
    University of Borås, School of Education and Behavioural Science.
    Krsteska, Kristina
    University of Borås, School of Education and Behavioural Science.
    Nori, Fatema
    University of Borås, School of Education and Behavioural Science.
    "Konflikter? Ja, tack! Eller?": en jämförelse mellan vårdenhetschefers och deras medarbetares konflikthantering och syn på konflikter2011Independent thesis Basic level (degree of Bachelor)Student thesis
    Abstract [sv]

    Abstrakt Syftet med vår kandidatuppsats är att göra en jämförelse gällande skillnader mellan vårdenhetschefers och deras medarbetares konflikthantering samt hur synen på interpersonella konflikter skiljer sig mellan grupperna. Varför vi valde att undersöka detta ämne är för att konflikter förekommer i vardagen i såväl arbets- som privatliv, och vi kommer att få hantera konflikter i våra framtida yrken som personalvetare. Vi tror att det kan skilja sig åt i hur man ser på och hanterar konflikter som chef respektive medarbetare, och det är just detta som är intressant för oss. Vi vill kunna bidra med något nytt till forskningen med denna studie. Då detta är en kvalitativ studie har vi valt att utgå från ett hermeneutiskt perspektiv. Vi har gjort semistrukturerade intervjuer med fyra vårdenhetschefer och fem medarbetare på ett västsvenskt sjukhus. Respondenterna arbetade på olika avdelningar. För att nå våra respondenter har vi använt oss av ett bekvämlighetsurval, det vill säga att man ”tar det man får”. Vår undersökning visade att det knappt finns några skillnader i synen på konflikter mellan vårdenhetschefer och medarbetare som grupper, utan mer mellan olika individer. Oenigheter och meningsskiljaktigheter var för de flesta detsamma som konflikter. Vad gäller konflikthanteringen sade sig medarbetarna lyssna och att de försöker få fram det verkliga problemet. Vårdenhetscheferna sade detsamma, men att de däremot är försiktiga med att ta sig an konflikter: de menade att de tänker till en extra gång och låter helst medarbetarna lösa sina konflikter själva, såvida de inte har gått för långt. Vi fick dock i resultatet fram att de flesta vårdenhetscheferna har en negativ syn på sina medarbetares sätt att hantera konflikter på grund av omoget agerande. Större delen av medarbetarna sade sig däremot vara positiva till sina chefers konflikthantering.

  • 6039.
    Ghoreishi, Rima
    et al.
    University of Borås, School of Engineering.
    Ehsani Fatmehsari, Mehdi
    University of Borås, School of Engineering.
    Mechanical and Thermal Characterizations of Biobased Thermoset Resins from Soybean Oil Reinforced with Natural Fiber Using Vacuum Injection Moulding Technique2010Independent thesis Advanced level (degree of Master (One Year))Student thesis
    Abstract [en]

    The aim of this research was to analyze the mechanical and thermal properties of composites and hybrid composites prepared with four types of jute fibers and two different resins; biobased thermoset resins acrylated epoxidized soybean oil (AESO) and mathacrylated anhydride modified soybean oil (MMSO). The processing technique used was vacuum injection molding (VIM). Tensile and, flexural testings and dynamic mechanical and thermal analysis (DMTA) were used to characterize the composites’ properties. The results showed that the AESO composites have better tensile and flexural properties. This may be due to the fact that the curing conditions were quite the same for both AESO and MMSO composites but MMSO composites showed different behavior during curing step. They were completely cured in a shorter time compared to AESO composites. Having equal curing time for both resins’ composites can damage the structure of MMSO composites and hybrids. Tan delta peak for the MMSO reinforced composites occurs at higher temperatures, compared to AESO reinforced composites, which means better thermal properties for MMSO reinforced composites.

  • 6040.
    Ghosh, Asit
    et al.
    University of Borås, Swedish School of Textiles.
    Mehmood Shah Nawaz, Muhammad
    University of Borås, Swedish School of Textiles.
    Coating on viscose fabric with respect to environmental aspect2011Independent thesis Advanced level (degree of Master (One Year))Student thesis
    Abstract [en]

    Cotton as a dominating natural fibre imparts a major contribution in the whole textile market including natural and artificial fibres. The demand of this cellulosic fibre is increasing rapidly day by day, on the other hand supply cannot fulfill its demand, and as a result price goes higher in world market. Now people are looking for alternatives to cotton in different applications. Viscose as cellulosic origin, the cheapest of all cellulosic fibres could be the best alternative. Viscose fibre exhibits some similar properties compared to cotton except its poor wet strength. In this thesis work different chemical finishes were applied to improve the wet strength of viscose fabric. For this purpose water repellent and soil release finishes were applied. Both water repellent and soil release finishes helped in reducing the molecular barrier around the individual fibres that lowered the surface tension of the fibre. It reduces the absorbency of viscose fibre hence leads to higher wet strength. Water repellent finish was applied alone as well as in combination with soil release finish. It was seen that viscose fibre exhibited better wet strength after applying water repellent and soil release finishes on it. This improved property of viscose could replace the cotton fibre in certain applications like bed linen.

  • 6041.
    Giannakis, Stavroula
    University of Borås, School of Business and IT.
    The Practice of Measuring Productivity2011In: Advances in service quality, innovation, and excellence : QUIS 12; proceedings of QUIS 12; the 12th International Research Symposium on Service Excellence in Management, Juni 2-5, 2011, Ithaca, NY / [ed] Bo van der Rhee, Liana Victorino, Center for Hospitality Research, Shool of Hotel Administration, Cornell University, USA , 2011Conference paper (Other academic)
    Abstract [en]

    Productivity in service has long been claimed to be low. The traditional measurement of output divided by input has received critic when applied to service settings and has even been described as potentially harmful due to its potential to change the actual offer. This study focuses on how productivity is defined and measured in two call centers. The results show that productivity is not limited to the output divided by input definition. Both call centers use similar measurements, but value the measures differently

  • 6042.
    Giannakis, Stavroula
    et al.
    University of Borås, School of Business and IT.
    Salomonson, Nicklas
    University of Borås, School of Business and IT.
    Lind, Mikael
    University of Borås, School of Business and IT.
    Sundström, Malin
    University of Borås, School of Business and IT.
    Befintliga kundmöten mellan Göteborgs Energis kontaktcenter och kunder: hur sker möten idag?2008Report (Other academic)
  • 6043.
    Giannakis, Stavroula
    et al.
    University of Borås, School of Business and IT.
    Salomonson, Nicklas
    University of Borås, School of Business and IT.
    Lind, Mikael
    University of Borås, School of Business and IT.
    Sundström, Malin
    University of Borås, School of Business and IT.
    Kundmöte 2015: befintliga kundmöten mellan Göteborg Energis kontaktcenter och kunder2008Report (Other academic)
  • 6044.
    Giaré, Alexandra
    et al.
    University of Borås, Faculty of Librarianship, Information, Education and IT.
    Maisto, Jessica
    University of Borås, Faculty of Librarianship, Information, Education and IT.
    Början mitten och slutet: Undervisningsmetoder som aktiverar och utvecklar historiemedvetande2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Historiemedvetande är ett begrepp som används frekvent inom historiedidaktiken. Begreppet finns med i kursplanen för ämnet historia i Läroplan för grundskolan, förskoleklassen och fritidshemmet 2011. Syftet med kunskapsöversikten är att beskriva hur resultat av tidigare didaktikforskning inom ämnet historia ser ut, samt att få insikt i vilka undervisningsmetoder som visat sig vara framgångsrika när det gäller att aktivera och utveckla yngre elevers historiemedvetande. Med yngre elever avser vi elever på låg- och mellanstadiet. Genomsökningar och sökord som historical consciousness, didactics och teaching samt ytterligare urvalskriterier i databaserna Primo och ERIC (ProQuest) fick vi fram vårt material till denna kunskapsöversikt. Det visade sig att forskningen använt sig av olika metoder men ofta fått liknande forskningsresultat. Avhandlingar, rapporter, essäer och läroböcker inkluderades slutligen och utgör grunden till vår kunskapsöversikt. Utifrån det inkluderade materialet uppenbarades en röd tråd inom det befintliga forskningsfältet, men även en ofullkomlighet som kan användas till framtida forskning.

  • 6045.
    Giaré, Alexandra
    et al.
    University of Borås, Faculty of Librarianship, Information, Education and IT.
    Maisto, Jessica
    University of Borås, Faculty of Librarianship, Information, Education and IT.
    Kan Gustav Vasa hjälpa elever i mellanstadiet att utveckla ett historiemedvetande?: en läromedelsanalys i historia2019Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Ett syfte med historieundervisning för elever i årskurs 4–6 är att utveckla ett historiemedvetande vilket ligger till grund för denna undersökning. Studien utgår från Karl-Ernst Jeismanns definition av begreppet historiemedvetande som beskriver hur ett historiemedvetande aktiveras och utvecklas genom multikronologi, vilket innebär att de tre tidsdimensionerna, dåtid, nutid och framtid synliggörs. Undersökningen är gjord i form av en läromedelsanalys som granskar hur ett historiemedvetande förmedlas med hjälp av exemplet Gustav Vasa. Att vi valt att analysera kapitlen om Gustav Vasa är bara ett exempel och analysen skulle kunna utföras på vilken tidsepok eller historisk person som helst. Syftet med studien är att undersöka hur ett historiemedvetande förmedlas i kapitlen om Gustav Vasa i fyra vanligt förekommande läromedel i historia för årskurs 4–6, samt huruvida texten är korrekt i sakuppgifter och konkret nog vad gäller Gustav Vasas betydelse för Sverige. Metoden som använts är en kombination av en värderande analys och en läsbarhetsanalys. Resultaten visar att de analyserade läromedlen har olika förutsättningar för att kunna hjälpa eleverna att aktivera och utveckla ett historiemedvetande. Ett av de fyra analyserade läromedlen har utmärkt sig markant i alla de analyserade aspekterna, så som faktakorrekthet och närhet till källa. Betydande händelser är konkretiserade och ett tydligt tidsperspektiv förmedlas i detta läromedel.

  • 6046.
    Gibanica, Lejla
    et al.
    University of Borås, Faculty of Textiles, Engineering and Business.
    Handanagic, Lejla
    University of Borås, Faculty of Textiles, Engineering and Business.
    Energianalys och åtgärdsförslag av en befintlig byggnad: Doktor Fries Torg 6,7 och 102018Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The desire to buy housing and facilities in Sweden was high during the urbanization, which led to a large amount of buildings were built during the time. Today, the housing and the service sector accounts for 40 % of the total energy use in Sweden. To achieve a sustainable society and a sustainable building, energy efficiency of existing buildings needs to be done as well as new constructions needs to be performed energy efficiently and aim for near zero energy buildings (NNEs). This is important for reducing the energy use, and at the same time low the impact on the environment, while people feel a satisfactory environment. The project comprises an existing building in Gothenburg, where several activities are conducted at Doctor Fries Torg 6, 7 and 10. The project will be performed at the technology consulting company Energi Triangeln AB and the client of the project is Förvaltnings AB GöteborgsLokaler. The main purpose of the project is to implement an energy analysis that shows how the energy use in the building is distributed. By examining the energy use, it is possible to develop action proposals to achieve optimum energy conditions, reduce the energy use and the operating costs for the customer by promoting sustainable development. The result of the project is presented using data from the property owner, calculation files and formulas. The decisive phase of the work has been the visits of the building, which were made a couple of times. The visits have included inspection of the ventilation systems, heating system, climate scale, business area, property area, the internal heating keys for the respective activity and the way in which the activities are conducted. The visits facilitated the workflow when analyzes of the building were made, as well as the assumptions and conclusions about the building could be identified according to the industry standards. The results from the project show that the building has an energy use of 133 kWh/m2 and approximately 154 kWh/LOA today. With action proposals, the building has a saving potential of approximately 54 % which corresponds to an energy use of 71 kWh/m2, year and 83 kWh/LOA, year.

  • 6047.
    Gidebring, Christian
    et al.
    University of Borås, School of Engineering.
    Petré, Daniel
    University of Borås, School of Engineering.
    Improvement Management Training A case study at a Swedish Multinational Corporation2014Independent thesis Basic level (degree of Bachelor)Student thesis
    Abstract [en]

    It is of vital importance never to forget that the world is ever changing. Therefore, it is crucial for organizations not to only alter but also to improve their performance in order to become more competitive on the market. One way of achieving this is to work with continuous improvements. However, this requires that the employees receive the needed training for this purpose. In multinational corporations they must also all receive the same training in order to create a common culture throughout the whole organization. This study therefore aims to investigate how a multinational corporation can organize an Improvement Management Training. Which are the main areas that are desirable to have knowledge in when leading an improvement work? In order to identify the areas of interest, a case study has been performed at Ericsson Supply Site Borås. The investigation was conducted as a combination of a qualitative and a semiquantitative study in order to determinate the empirical data. The results revealed that the following five major areas are essential for an Improvement Management Training: Leadership, Lean¸ Organizational Behavior, Project Management and Strategic Management.

  • 6048.
    Gidenstam, Anders
    et al.
    University of Borås, School of Business and IT.
    Koldehofe, Boris
    Papatriantafilou, Marina
    Tsigas, Philippas
    Scalable group communication supporting configurable levels of consistency2013In: Concurrency and Computation, ISSN 1532-0626, Vol. 25, no 5, p. 649-671Article in journal (Refereed)
    Abstract [en]

    Group communication is deployed in many evolving Internet-scale cooperative applications such as multiplayer online games and virtual worlds to efficiently support interaction on information relevant to a potentially very large number of users or objects. Especially peer-to-peer based group communication protocols have evolved as a promising approach to allow intercommunication between many distributed peers. Yet, the delivery semantics of robust and scalable protocols such as gossiping is not sufficient to support consistency semantics beyond eventual consistency because no relationship on the order of events is enforced. On the other hand, traditional consistency models provided by reliable group communication providing causal or even total order are restricted to support only small groups. This article proposes the cluster consistency model which bridges the gap between traditional and current approaches in supporting both scalability and ordered event delivery. We introduce a dynamic and fault tolerant cluster management method that can coordinate concurrent access to resources in a peer-to-peer system and can be used to establish fault-tolerant configurable cluster consistency with predictable reliability, running on top of decentralised probabilistic protocols supporting scalable group communication. This is achieved by a general two-layered architecture that can be applied on top of the standard Internet communication layers and offers a modular, layered set of services to the applications that need them. Further, we present a fault-tolerant method implementing causal cluster consistency with predictable reliability, running on top of decentralised probabilistic protocols supporting group communication. This paper provides analytical and experimental evaluation of the properties regarding the fault tolerance of the approach. Furthermore, our experimental study, conducted by implementing and evaluating the two-layered architecture on top of standard Internet transport services, shows that the approach scales well, imposes an even load on the system, and provides high-probability reliability guarantees.

  • 6049.
    Gidenstam, Anders
    et al.
    University of Borås, School of Business and IT.
    Papatriantafilou, Marina
    LFTHREADS: a lock-free thread library2008In: SIGARCH Computer Architecture News, Association for Computing Machinery, Inc. , 2008, Vol. 4878, p. 88-92Conference paper (Refereed)
    Abstract [en]

    This extended abstract presents LFTHREADS, a thread library entirely based on lock-free methods, i.e. no spinlocks or similar synchronization mechanisms are employed in the implementation of the multithreading. Since lockfreedom is highly desirable in multiprocessors/multicores due to its advantages in parallelism, fault-tolerance, convoy-avoidance and more, there is an increased demand in lock-free methods in parallel applications, hence also in multiprocessor/multicore system services. LFTHREADS is the first thread library that provides a lock-free implementation of blocking synchronization primitives for application threads; although the latter may sound like a contradicting goal, such objects have several benefits: e.g. library operations that block and unblock threads on the same synchronization object can make progress in parallel while maintaining the desired thread-level semantics and without having to wait for any "low" operations among them. Besides, as no spin-locks or similar synchronization mechanisms are employed, memory contention can be reduced and processors/cores are able to do useful work. As a consequence, applications, too, can enjoy enhanced parallelism and fault-tolerance. For the synchronization in LFTHREADS we have introduced a new method, which we call responsibility hand-off (RHO), that does not need any special kernel support. The RHO method is also of independent interest, as it can also serve as a tool for lock-free token passing, management of contention and interaction between scheduling and synchronization. This paper gives an outline and the context of LFTHREADS. For more details the reader is refered to [7] and [8].

  • 6050.
    Gidenstam, Anders
    et al.
    University of Borås, School of Business and IT.
    Papatriantafilou, Marina
    Sundell, Håkan
    University of Borås, School of Business and IT.
    Tsigas, Philippas
    Efficient and Reliable Lock-Free Memory Reclamation Based on Reference Counting2009In: IEEE Transactions on Parallel and Distributed Systems, ISSN 1045-9219, E-ISSN 1558-2183, Vol. 20, no 8, p. 1173-1187Article in journal (Refereed)
    Abstract [en]

    We present an efficient and practical lock-free method for semiautomatic (application-guided) memory reclamation based on reference counting, aimed for use with arbitrary lock-free dynamic data structures. The method guarantees the safety of local as well as global references, supports arbitrary memory reuse, uses atomic primitives that are available in modern computer systems, and provides an upper bound on the amount of memory waiting to be reclaimed. To the best of our knowledge, this is the first lock-free method that provides all of these properties. We provide analytical and experimental study of the method. The experiments conducted have shown that the method can also provide significant performance improvements for lock-free algorithms of dynamic data structures that require strong memory management.

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