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  • 851.
    Arenhall, Eva
    et al.
    Örebro universitet.
    Kristofferzon, Marja-Leena
    University of Gävle, Faculty of Health and Occupational Studies, Department of Health and Caring Sciences, Nursing science. Department of Public Health and Caring Sciences, Section of Caring Sciences, Uppsala University, Uppsala.
    Fridlund, Bengt
    Hälsohögskolan Jönköping.
    Nilsson, Ulrica
    Örebro universitet.
    The female partners' experiences of intimate relationship after a first myocardial infarction2011In: Journal of Clinical Nursing, ISSN 0962-1067, E-ISSN 1365-2702, Vol. 20, no 11-12, p. 1677-1684Article in journal (Refereed)
    Abstract [en]

    Aim.

    This study aimed to explore and describe women’s experience of intimate relationships in connection to and after their partner’s first myocardial infarction.

     

    Background.

    Support from partners is important for recovery, but little is known about partners’ experience of intimate relationships after myocardial infarction.

     

    Design.

    The study used an explorative, qualitative design.

     

    Methods.

    The first author interviewed 20 women having a partner who had suffered a first myocardial infarction during the preceding year. Qualitative content analysis was used to analyse the data.

     

    Findings.

    Three themes emerged: ‘limited life space’, ‘sense of life lost’ and ‘another dimension of life’. The women described how their self-assumed responsibility led to a more stifling and limited life. Their sense of life lost was described in terms of deficits and feeling the loss. The women also described experiencing another dimension of life characterised by three subthemes: ‘uncertainty of life’, ‘certain of relationship’ and ‘share life more’.

     

    Conclusions.

    The partners’ myocardial infarction had an impact on the interviewees’ intimate relationships; they suffered a major loss and missed their ‘former’ partner, both emotionally and sexually. They struggled with the new asymmetry in their intimate relationship and felt compelled to adapt to their partners’ lack of sexual desire or function. Also, their partner controlled them, which lead towards a stifling, more limited life space.

     

    Relevance to clinical practice.

    Caregivers in hospital and primary care settings could apply the findings in their efforts to help couples recover or maintain intimate relationships following myocardial infarction.

  • 852.
    Ares Gondra, Zaloa
    University of Gävle, Faculty of Engineering and Sustainable Development.
    Study of factors influcencing the quality and yield of biodiesel produced by transesterification of vegetable oils2009Independent thesis Advanced level (degree of Master (One Year)), 15 credits / 22,5 HE creditsStudent thesis
    Abstract [en]

    Biofuels are a developing kind of fuel whose origin is biomass. Among them, many different kind of fuels can be found: bioethanol, biobutanol, biodiesel, vegetable oils, biomethanol, pyrolysis oils, biogas, and biohydrogen. This thesis work is focused on the production of biodiesel, which can be used in diesel engines as a substitute for mineral diesel. Biodiesel is obtained from different kinds of oils, both from vegetable and animal sources. However, vegetable oils are preferred because they tend to be liquid at room temperature.

    The process to obtain biodiesel implies first a reaction between the oil and an alcohol, using a catalyst and then a sedimentation, where the biodiesel and the glycerol, the two products that are obtained, can be separated because of their difference in density. After the separation, raw biodiesel is obtained and a treatment with either water bubbling or dry cleaning products is needed to obtain the product which will be ready to use.

    Many methods are available for the production of biodiesel, most of them require heat for the transesterification reaction, which converts the oil into biodiesel. Apart from that, in many cases biodiesel is produced by big companies or by individuals but using complicated and expensive installations.

    This work is an attempt to develop a way of producing biodiesel without any use of external heat, using a simple procedure which could be used by people with a low knowledge of chemistry or chemical processes. It also seeks to set an example on how biodiesel can be easily made by oneself without the use of any industrial systems, with a low budget and limited need of supervision over the process.

    In order to achieve that, many trials were undertaken, introducing changes in the different parameters that are responsible for the changes in the final product. Among them, changes in the amount and type of catalyst, the way the catalyst is added, the type of oil used, the time of reaction and the temperature were made. Apart from that, different types of cleaning were tried, starting by water cleaning and then using powder type products, Magnesol, D-Sol and Aerogel. A centrifuge was also tried to test its utility when separating impurities from liquids or different liquid phases. The results of the different trials were analysed using various tests, the most important being the 3:27 test, the solubility test, the soap titration and pH measurements.

    To sum up, it could be said that the investigation was a success, since it was proved that biodiesel can be made without the use of any external heat with both alkali and acid catalysts, as well as with different ways of adding the catalyst. As for the cleaning, good results were obtained with both dry products and water cleaning, since the soap content of the biodiesel was reduced in both cases. Apart from that, the centrifuge proved to be valid to eliminate impurities from raw oil.

  • 853.
    Areskoug, Linn
    University of Gävle, Faculty of Education and Business Studies, Department of Humanities, Literature science. Uppsala universitet, Litteraturvetenskapliga institutionen.
    Den svenske mannens gränsland: Manlighet, nation och modernitet i Sven Lidmans Silfverstååhlsvit2011Doctoral thesis, monograph (Other academic)
    Abstract [en]

    This thesis deals with the nationalistic imaginary in the novels of Sven Lidman, published 1910–1913. The novels hold forth a conservative point-of-view that embraces the bourgeois ideal of masculinity and the idea of the healthy, Swedish rural way of life as opposed to the destructive metropolis. This dualism is part of a dichotomy that structures the novels. It also entails continuity/fragmentation, the Swedish/the foreign, men/women, activity/ passivity as well as masculinity/femininity and unmanliness.

    In the Silfverstååhl-cycle the protagonists are young men of a noble, Swedish family. They progress from lost and introspective youths to grown men who are deeply concerned with and engaged in society. They are different representatives of the Swedish man – the farmer, the business man, the explorer and the clergy man. What unites them is how their “coming of age” develops, how through trial and struggle they become stronger and prove worthy of the manly role they finally take on. This is a major principle of the bourgeois masculinity that is also closely connected to the national identity of the men.

    There is also an ambiguity concerning modernity. Throughout the novels a critique of modern society is formulated, that acknowledges the modern age but simultaneously takes on a prudent attitude towards modern society. There is no going back for the Swedish nation; the modern times have to be confronted. The present is very important since it is the time for scrutiny. The handling of the modern era takes place in the developing processes of the young men, who have to be careful not to get trapped in the modern whirlpool that threatens to shatter the human being. The past, the familiar and the rural anchorage that the family relation entitles, is a defense against the destructive forces of modernity. But the past is not completely beneficial. Even though the past is of major importance to the national identity of the protagonists, they have to be very careful not to delve too much into the past because of the risk of paralysis and effeminization. In the nationalistic narrative the present encapsulates the past and the future. The Swedish man has to navigate in the borderland of modernity.

  • 854.
    Areteg, Marcus
    University of Gävle, Department of Caring Sciences and Sociology, Ämnesavdelningen för vårdvetenskap.
    Utvärdering av postoperativ noninvasiv ventilationmed Bi-level Positive Airway Pressure av obesapatienter som genomgår elektiv gastric bypasskirurgi2009Independent thesis Advanced level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Obese patients have a higher risk for respiratory complications after general anesthesia related toreduced vital capacity (VC), functional residual capacity (FRC) and total lung capacity (TLC).Earlier studies have shown that postoperative treatment with Bi-level Positive Airway Pressureimproved forced vital capacity (FVC), forced expiratory volume in 1 second (FEV1.0) andsaturation (SpO2) after elective gastric bypass surgery. Present study evaluates whether or not thesame postoperative treatment also shows differences in arterial blood gases, if compared with usualpostoperative treatment with nasal administered oxygen. A second aim was to describe how patientsexperienced the BIPAP treatment. Arterial blood gases from 18 patients were analyzed withanalytical statistics. The study showed that postoperative treatment whit BIPAP during 3 hoursresults in higher SpO2 and lower paCO2 than traditional postoperative treatment after electivegastric bypass surgery. Both treatments results in lower paO2 and unchanged pH. Several patientsexperienced discomfort during the BIPAP treatment.

  • 855.
    Arevian, Narine
    et al.
    University of Gävle, Faculty of Education and Business Studies, Department of Business and Economic Studies.
    Marki, Nancy
    University of Gävle, Faculty of Education and Business Studies, Department of Business and Economic Studies.
    Miljökostnad: Rapportering och definition av miljökostnad i svenska börsnoterade bolags årsredovisningar2016Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Syftet med studien är att undersöka vad som rapporteras som miljökostnader i svenska börsnoterade företags rapporter samt ta reda på om storlek och bransch har en påverkan på rapporteringen. Utifrån detta ska studien vidare ge ett utarbetat förslag för hur miljökostnader kan definieras.

    Studien har utgått från ett positivistiskt och objektivt synsätt. För att lyckas besvara studiens syfte har en kvantitativ dokumentstudie genomförts, där års-och miljöredovisningar från svenska börsbolag för räkenskapsår 2014 och 2015 har granskats. Studiens empiriska resultat har sedan ställts mot tidigare forskning och teorier i en analys

    Studiens resultat indikerar på att en övergripande del av företag på Stockholmsbörsen rapporterar miljökostnader i kvalitativa termer i form av löpande text. Studien har även funnit att i de fall bolagen lyckats kvantifiera kostnaderna rapporteras de i andra enheter än monetära. Vidare har studien funnit att både bransch och storlek har en påverkan på rapportering av miljökostnader men att storleksfaktorn endast påverkar små företag.

    Då studien har genomfört en dokumentstudie skulle det vara intressant att vidareutveckla studiens syfte och studera hur företag definierar miljökostnader ur ett kvalitativt perspektiv. Vidare skulle det även vara intressant att ta reda på varför mer än hälften av företagen på svenska börsen inte miljökostnadsrapporterar

  • 856.
    Arfwedson, Gerhard
    Lärarhögskolan i Stockholm.
    Lek, musik, könsroller och centrala begrepp: fyra exempel på sociala konstruktioner2003Collection (editor) (Other academic)
  • 857.
    Arfwedson, Gerhard
    University of Gävle, Department of Education and Psychology, Ämnesavdelningen för didaktik.
    Mellan praktik och teori: tio didaktiska berättelser om undervisning2002Collection (editor) (Other (popular science, discussion, etc.))
  • 858.
    Arfwidsson, Linnéa
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Land management, GIS.
    Warg, Alicia
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Land management, GIS.
    Traditionella och nya upplåtelseformer av bostadslägenheter2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This essays main focus is to further develop the understanding and describe six different types of tenure. The essay investigate similarities and differences between the types of tenure on the Stockholm housing market. The most common types of leaseholds, ownership apartments, and rental apartments will be described but and also new types of leases will be described. Such as cooperative rental apartments, condominiums, low purchase price apartments and rental purchases. The latter two are new forms of types of ownership and have emerged as an attempt by developers to bring young adults and low-wage earners into the housing market.

    Firstly, The qQuestion formulations in this essay are constructed to investigate similarities and differences which exist between the different forms of submission. Secondly, the questions target what kind of current costs for housing and the non-recurrent costs for purchasing. Finally, the purposes for the introduction of the new forms of leasing.

    The study has been conducted through literature studies and also interviews with market developers. Therefore, based on the study questions, respondents have answered the basis for our presentation and discussion of a descriptive analysis of the various forms of submission.

    Based on the results of the study, it can be clarified that the rental apartments can be the most advantageous in terms of the cost. But then it is taken into account that the queue is about 10 years for getting an apartment. Further, the results indicate that individuals that has a capital and the opportunity to purchase a ownership apart, the queue isn’t a matter and the individual has an opportunity to make a profit or loss on a later sale of the residence. Taking account to amortization of loans, an ownership apartment can be most advantageous from an economic perspective. Condominiums has been found to have a relatively low fee but the monthly cost become relatively high depending on the high purchase price.

    The results of this study shows that co-operative rental apartments have been found to have a low monthly cost. But the problem is that they are bothered by a long queue and also that the individual is dependent of a input gains. The two new types of low purchase price apartments and rental purchases on the market are so newly established which makes it difficult to make an accurately interpret of their impact on the housing market today.

  • 859.
    Arghand, Taha
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering.
    Human subjective response to combined radiant and convective cooling by chilled ceiling combined with localized chilled beam2015Independent thesis Advanced level (degree of Master (Two Years)), 80 credits / 120 HE creditsStudent thesis
    Abstract [en]

    The aim of the present research is to identify human subjective response (health and comfort) to the micro-thermal environment established by integration of individually controlled localized chilled beam and chilled ceiling (LCBCC) system and to compare its performance with the performance of mixing ventilation combined with chilled ceiling (CCMV).Experiments were carried out in mock-up of an office (4.1 m × 4.0 m × 3.1 m, L× W× H) with one person under two summer temperature conditions (26 °C and 28 °C). To mimic direct solar radiation in the room, five radiative panels on the wall together with electrical sheets on the half of the floor were used. The test room was set-up with two desks, as two workstations, and one laptop on each table. The main workstation (WS1) was located close to the simulated window. The second work station (WS2) was placed in the opposite side of the room. The room was equipped with two types of ventilating and cooling systems.  The first system consisted of a localized active chilled beam (LCB) unit together with chilled ceiling (CC) panels. The LCB was installed above the WS1 to create micro-environment around the occupant sitting at the desk. The supply flow rate from the LCB could be adjusted by the occupant within the range of 10 L/s to 13 L/s by means of a desk-mounted knob. The integration of mixing ventilation (MV) system and chilled ceiling panels was the second ventilating and cooling strategy. Twenty- four subjects (12 female and 12 male) were exposed to different indoor environment established by two cooling systems. Each experiment session lasted 120 min and consisted of 30 min acclimatization period and 90 min exposure period. The performance of the systems was identified and compared by physical measurements of the generated environment and the response of the human subjects.

    The study showed that perceived air quality (PAQ), overall thermal sensation (OTS) acceptability and local thermal sensation (LTS) acceptability clearly improved inside the micro-environment by using LCBCC system. Moreover, at the main workstation, OTS and LTS votes were close to “neutral” thermal sensation (ASHRAE seven point scale) when LCBCC system was used. However, OTS and LTS votes increased to the “slightly warm” side of the scale by applying CCMV system which implied the better cooling performance of the LCBCC system. Acceptability of work environment apparently increased under the room condition generated by LCBCC system.

    In agreement with human subjective study, the results from physical measurements and thermal manikin study showed that uniform thermal condition was generated all over the room. Air and operative temperature distribution was almost uniform with no difference higher than 1 °C between the measured locations in the room. Thus, both LCBCC and CCMV systems performed equally well outside of the micro-environment region. The use of the chilled ceiling had impact on the airflow interaction in the room and changed the airflow pattern. It can be concluded that the combination of convective and radiative systems can be considered as an efficient strategy to generate acceptable thermal condition in rooms.

  • 860.
    Arghand, Taha
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering, Energy system.
    Karimipanah, Taghi
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering, Energy system.
    Awbi, Hazim
    School of Construction Management and Engineering, University of Reading, United Kingdom.
    Cehlin, Mathias
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering, Energy system.
    Larsson, Ulf
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering, Energy system.
    Linden, Elisabet
    University of Gävle, Faculty of Engineering and Sustainable Development, BMG laboratory.
    An experimental investigation of the flow and comfort parameters for under-floor, confluent jets and mixing ventilation systems in an open-plan office2015In: Building and Environment, ISSN 0360-1323, E-ISSN 1873-684X, Vol. 92, p. 48-60Article in journal (Refereed)
    Abstract [en]

    There is a new trend to convert the workplaces from individual office rooms to open offices for motivating money saving and better communication. With such a shift the ability of existing ventilation systems in meeting the new requirements is a challenging question for researchers. The available options could have an impact on workers' health in terms of providing acceptable levels of thermalcomfort and indoor air quality. Thus, this experimental investigation focuses on the performances of three different air distribution systems in an open-plan office space. The investigated systems were: mixing ventilation with ceiling-mounted inlets, confluent jets ventilation and underfloor air distribution with straight and curved vanes. Although this represents a small part of our more extensiveexperimental investigation, the results show that all the purposed stratified ventilation systems (CJV and UFAD) were more or less behaving as mixing systems with some tendency for displacement effects. Nevertheless, it is known that the mixing systems have a stable flow pattern but has the disadvantage of mixing contaminated air with the fresh supplied air which may produce lower performance and in worst cases occupants' illness. For the open-plan office we studied here, it will be shown that the new systems are capable of performing better than the conventional mixing systems. As expected, the higher air exchange efficiency in combination with lower local mean age of air for corner-mounted CJV and floor-mounted UFAD grills systems indicates that these systems are suitable for open-plan offices and are to be favored over conventional mixing systems.

  • 861.
    Arif, Mehrunnessa
    et al.
    University of Gävle, Faculty of Health and Occupational Studies.
    Bergström, Thérése
    University of Gävle, Faculty of Health and Occupational Studies.
    Faktorer som påverkar mödrars beslut gällande valet att amma/inte amma sitt spädbarn: En litteraturstudie.2012Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Fördelarna med amning är många, trots detta tar allt fler mödrar beslutet att delvis amma/ inte amma sina barn. Syfte: Syftet med denna studie var att erhålla mer kunskap om samt undersöka vilka faktorer som påverkar mödrars beslut att amma/ inte amma. Metod: Studien genomfördes som en deskriptiv litteraturstudie, där 12 vetenskapliga artiklar granskades. Resultat: Faktorer som påverkar mödrars beslut till att amma var: bröstmjölk anses vara den ultimata födan för spädbarnet, föräldrar har god kunskap gällande amning, bra stöd från närstående och vårdpersonal, högutbildade mödrar, tidigare erfarenhet av amning, partnern föredrar amning, amning är praktiskt och ger lycka till både modern och barnet. Faktorer som påverkar mödrars beslut till att inte amma var: okunskap hos modern, fadern och sjukvårdspersonal, amning känns genant, fysiskt smärtsamt och obehagligt, stressad personal, föräldrarna får otillräckligt med stöd och information från vårdpersonal, tidig återgång till arbete, spädbarnet är otillfredsställt av endast bröstmjölk, oroligheter över bröstmjölkens näring samt rädsla för viktuppgång och hängiga bröst. Slutsats: Bristande kunskap, information och stöd är faktorer som kan påverka moderns beslut till att amma/ inte amma. Föräldrar behöver mer information och stöd gällande amning både innan och efter förlossningen, så de kan grunda sitt beslut på relevant fakta.

  • 862.
    Aringskog, Linnéa
    et al.
    University of Gävle, Faculty of Education and Business Studies, Department of Educational sciences.
    Staff, Linda
    University of Gävle, Faculty of Education and Business Studies, Department of Educational sciences.
    Vilken syn har lärarna på barns språkutveckling och hur tas denna kunskap tillvara vid övergången mellan förskola och förskoleklass?2017Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Denna studie handlar om barns språkutveckling inom förskola och förskoleklass. Hur arbetar lärare med barns språkutveckling i de olika verksamheterna och vilken information delges vid övergången mellan dessa verksamheter? För att samla in underlag till denna studie har sju intervjuer genomförts med två förskollärare verksamma i förskoleklass och fem förskollärare verksamma inom förskolan. Utifrån tidigare forskning och kontinuitet tolkades det insamlande materialet och i studiens resultat framkom det att lärare generellt har samma syn på språkutveckling. Beroende på i vilken verksamhet lärare arbetar så såg arbetssättet lite olika ut eftersom äldre barn hade andra utmaningar. Däremot visade studiens resultat att samarbetet mellan de olika verksamheterna kan förbättras. Alla de intervjuade var eniga om att det vore önskvärt att lärare från verksamheterna borde träffas tillsammans för att få en bättre inblick i hur respektive arbetsplats arbetar med språkutveckling för att kunna planera det fortsatta arbetet utifrån var barnet befinner sig. Eftersom läroplanerna poängterar kontinuitet och samarbete mellan förskola och förskoleklass är detta ett mål som lärare aktivt borde arbeta mot.

  • 863.
    Arizcun Zúñiga, Paula María
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering.
    Ram pump hydraulic air test. Pressure conditions and flow measurements: Experimental research and case study2018Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This study consists of the development of a ram pump, which will allow the pumping of water without the need of external energy sources. It is considered an analysis of interest since, once it is finished; it can be applied in reality improving and facilitating different activities related to agriculture and health.

    Previous studies have been made related to the ram pump; however, in this case, it is intended to understand the system that has been built in the laboratory in order to find the best combination of parameters that will lead to obtain the highest possible efficiency. 

    The study will be carried out by studying scientific literature and by experimenting in the laboratory. Encompassing the experimental and literary field, it is expected to understand perfectly the advantages and disadvantages of the ram pump in order to determine if it is worth it to install in certain places.

    After the study, the most favourable parameters for the operation of the Bruzaholms Bruk pump have been obtained. It has been found that the use of a longer drive pipe favours the operation of the system, as it is possible to obtain a higher efficiency, although it must be taken into account that the mentioned length needs to be controlled, as it could reduce the working rhythm of the pump. It has also been seen that the pump gives better results if the impulse valve is completely opened. Finally, it has been proven that, as long as the height difference between the two tanks is enough, increasing the height of the water source will favour the operation of the system.

  • 864. Arlinger, Stig
    et al.
    Hagerman, Björn
    Kjellberg, Anders
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för inomhusmiljö.
    Kähäri, Kim
    Landström, Ulf
    Poulsen, Torben
    Musik och höga ljudnivåer: praktiska riktlinjer för musik- och underhållningsbranschen2009Report (Other academic)
  • 865. Arlinger, Stig
    et al.
    Kjellberg, Anders
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för inomhusmiljö.
    Landström, Ulf
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för inomhusmiljö.
    Kähäri, Kim
    Hagerman, Björn
    Poulsen, Torben
    Bengtsson, Johanna
    Musik, musiker och hörsel: en kunskapssammanställning om höga ljudnivåer och hörselskaderisker i musik- och underhållningssektorn2007Report (Other academic)
  • 866.
    Arlmark, Maria
    University of Gävle. University of Gävle, Department of Education and Psychology.
    Fyra revisorers upplevelser av arbetsrelaterad stress2009Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 867.
    Armblad, Josefin
    University of Gävle, Faculty of Education and Business Studies, Department of Culture Studies, Religious Studies and Educational Sciences.
    Stamning: Några pedagogers erfarenheter av barn med stamning2010Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    I studien intervjuades sex stycken olika pedagoger från olika förskolor. De intervjuade var förskollärare och barnskötare. Syftet var att få reda på vad pedagogerna i verksamheten gör för att hjälpa stammande barn samt ta reda på hur viktigt pedagogerna anser att barnens språkutveckling är. I intervjun fick pedagogerna bland annat frågan om vad de har för erfarenhet av stammande barn, hur dem arbetar med barns språkutveckling och om de har träffat på stammande barn under deras tid i förskolan.

    Intervjuerna skedde på pedagogernas arbetsplatser på en bestämd tid som passade pedagogerna som skulle bli intervjuade. Resultatet blev att de flesta av dem intervjuade pedagogerna inte hade stött på några barn som stammade och pedagogerna som hade gjort det lät bara barnet vara utan att göra några speciella åtgärder. Alla pedagogerna belyste vikten av att arbeta med barns språkutveckling och gav exempel på vad de gör för att arbeta med språkutveckling.

  • 868.
    Arnaiz Remiro, Lierni
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering, Energy system.
    Modelling and assessment of energy performance with IDA ICE for a 1960's Mid-Sweden multi-family apartment block house2017Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The present thesis has been carried out during the spring of 2017 on behalf of Gavlegårdarna AB. This is a public housing company in Gävle (Sweden) which is a large energy consumer, over 200 million SEK per year, and has the ambitious goal of reduce its energy consumption by 20 % between 2009 and 2020. Many multi-family apartment blocks were built during the "million programme" in the 60’s and 70’s when thermal comfort was the priority and not the energy saving. Nevertheless, this perspective has changed and old buildings from that time have been retrofitted lately, but there are many left still. In fact, one of these buildings will be retrofitted in the near future so a valid model is needed to study the energy saving measures to be taken. The aim of this thesis is to get through a calibration process to obtain a reliable and valid model in the building simulation program IDA ICE 4.7.1. Once this has been achieved it will be possible to carry out the building’s energy performance assessment. IDA ICE has shown some limitations in terms of thermal bridges which has accounted for almost 15 % of total transmission heat losses. For this reason, it is important to make a detailed evaluation of certain joints between elements for which heat losses are abundant. COMSOL Multiphysics® finite element software has been used to calculate these transmittances and then use them as input to IDA ICE to carry out the simulation.

    Through an evidence-based methodology, although with some sources of uncertainty, such as, occupants’ behaviour and air infiltration, a valid model has been obtained getting almost the same energy use for space heating than actual consumption with an error of 4% (Once the standard value of 4 kWh/m2 for the estimation of energy use in apartments' airing has been added). The following two values have been introduced to IDA ICE: household electricity and the energy required for heating the measured volume of tap water from 5 °C to 55 °C. Assuming a 16 % of heat losses in the domestic hot water circuit, which means that part of the heat coming from hot water heats up the building. This results in a lower energy supply for heating than the demanded value from IDA ICE. Main heat losses have been through transmission and infiltration or openings. Windows account 11.4 % of the building's envelope, thus the losses through the windows has supposed more than 50 % of the total transmission losses. Regarding thermal comfort, the simulation shows an average Predicted Percentage of Dissatisfied (PPD) of 12 % in the worst apartment. However, the actual value could be considerably lower since the act of airing the apartments has not been taken into account in the simulation as well as the strong sun's irradiation in summer which can be avoided by windows shading. So, it could be considered an acceptable level of discomfort. To meet the National Board of Housing Building and Planning, (Boverket) requirements for new or rehabilitated buildings, several measures should be taken to improve the average thermal transmittance and reduce the specific energy use. Among the energy saving measures it might be interesting replace the windows to 3 pane glazing, improve the ventilation system to heat recovery unit, seal the joints and intersections where thermal bridges might be or add more insulation in the building’s envelope.

  • 869.
    Arnautovic, Sead
    University of Gävle, Department of Humanities and Social Sciences.
    Religionsundervisning i kommunal skola respektive friskola2008Independent thesis Basic level (degree of Bachelor), 15 credits / 22,5 HE creditsStudent thesis
    Abstract [en]

    Abstract

    The purpose of this paper is to examine how the religious education is implemented in junior and grammar school. As a base for my examination I used two private schools and two municipal schools. My main goal was to get a better view of the content of the education, the treatment of the students and the conditions for the students to get a greater understanding and respect for others’ religious beliefs and opinions through education. To reach this goal I did interviews and field studies which means that the paper has a qualitative approach.

    The examination showed clearly that the private schools spend a lot more education time on their respective religions while the municipal schools have a more comprehensive education. Regarding the treatment of the students I could not find any differences since all of the

    schools gave the students space to express their opinions and thoughts. However there are clear differences when it comes to understand others’ opinions and respect other people’s religious views, since the students in the private schools only meet students with the same religion and views; they do not meet other students who do not share their thoughts.

  • 870.
    Arnell, Emma
    University of Gävle, Faculty of Education and Business Studies, Department of Humanities, Swedish and Gender studies.
    Inkluderande skrivundervisning: En studie med utgångspunkt i genrepedagogiken2017Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    I studien används Sydneyskolans genrepedagogik och processkrivning som utgångspunkt och underlag. Syftet med studien är att undersöka svensklärares tankar och upplevelser om skrivundervisning i relation till genrepedagogiken och processkrivning samt att analysera elevtexter och hur väl elevtexterna förhåller sig till valda genrer. I studien används två olika metoder för resultatet. Resultatet består av intervjuer med två svensklärare och analyser av sex elevtexter, tre insändare och tre debattartiklar, från svensklärarnas klasser som de undervisar. Studien och resultatdelen kommer rikta in sig på diskursiva texter. I resultatdelen framkommer svensklärarnas tankar och upplevelser kring skrivundervisningen samt analyser av de textaktiviteter som finns i elevtexterna. Båda lärarna anser att genrepedagogiken är väl fungerande, inkluderande och förtydligar samt stärker den individuella textproduktionen. I studien framkommer det att svensklärarna som deltar i studien lägger mycket fokus på processkrivandet och inte lika mycket fokus på den färdiga produkten. En avgörande faktor för att kunna arbeta genrepedagogiskt menar de båda lärarna är tiden, då arbete utifrån genrepedagogiken upplevs som tidskrävande. Eleverna som skrev insändare lyckades till viss del förhålla sig till genre då samtliga argumenten ej gav skäl för åsikt. De elever som skrev debattartiklar lyckades relativt väl att förhålla sig till genre, det som två av tre texter saknade var motargument. Det är svårt att dra några slutsatser eller att jämföra undervisningsmetoderna kopplat till elevproduktionerna då det är två olika genrer som undersöksi studien.

  • 871.
    Arnell Målman, Mikaela
    University of Gävle, Faculty of Education and Business Studies, Department of Educational sciences, Educational science.
    Barns kamratrelationer i förskolan: En intervjustudie om förskollärares erfarenheter kring barns kamratrelationer2018Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Syftet med den här studien är att öka kunskapen om förskollärares arbete med barns kamratrelationer i förskolan. Studien genomfördes i form av intervjuer med fem förskollärare för att ta del av deras erfarenheter. Svaren analyserades med grund i ett sociokulturellt perspektiv samt Corsaros (1985) tillträdesstrategier. Resultatet visar att samtliga förskollärare säger sig arbeta aktivt med barns kamratrelationer på förskolan. Flera olika arbetssätt används, som till exempel vänskapssol, lekträning och rollspel. Det arbetssätten har gemensamt är att det till stor del handlar om att finnas där för barnen ideras lek, att ge det stöd de behöver samt delge barnen vilka verktyg som krävs för att kunna utveckla sina kamratrelationer på egen hand. Vidare framkommer av resultatet att reflektion i arbetslaget blir ett viktigt inslag för förskollärarna i arbetet med barnens kamratrelationer och att det finns en del hinder för att förskollärarna ska kunna stödja barnen i deras kamratrelationer, som till exempel tidsbrist och brist på resurser.

  • 872.
    Arnell, Susann
    et al.
    University Health Care Research Center (UFC), Region Örebro County, Örebro, Sweden.
    Jerlinder, Kajsa
    University of Gävle, Faculty of Health and Occupational Studies, Department of Health and Caring Sciences.
    Lundqvist, Lars-Olov
    University Health Care Research Center (UFC), Region Örebro County, Örebro, Sweden.
    Participation in physical activities: a multilevel challenge for adolescents with autism spectrum disorders2017In: Developmental Medicine & Child Neurology, ISSN 0012-1622, E-ISSN 1469-8749, Vol. 59, no S2, p. 8-8Article in journal (Other academic)
    Abstract [en]

    Introduction: Physical inactivity is one of the biggest current public health problems. Few adolescents with autism spectrum disorder (ASD) achieve the recommendation of daily physical activity (PA). The reasons for not being physically active depend on several complex factors, yet not comprehensively described from the adolescents’point of view. The absence of their perspective means that intervention strategies for health enhancing physical activity may not encompass the experiences of the adolescents themselves. Therefore the purpose of this study was to develop an understanding of the perceptions, experiences and reflections of adolescents with ASDs’participation in PA.

    Participants and methods: Twenty-four adolescents, diagnosed with ASD without a co-occurring intellectual disability, aged 12-16 years, participated in the study.Data was collected using qualitative interviews and inductively analyzed using qualitative content analysis.

    Results: Adolescents with ASD were a heterogeneous group in regard to their current PA habits and preferences. Their willingness to participate in PA was conditioned regarding; what, where, when and with whom. They described challenges in the activity and the social context during PA, especially during the mandatory physical education. Perceived demands, freedom of choice, physical ability and sense of control affected their PA participation.

    Conclusion: Findings indicate that the adolescents’willingness to participate was associated with interacting and individual-related conditions, which can be misinterpreted as unwillingness to participate in PA. Thus aspects of autonomy and knowledge about individual conditions and needs have to be recognized when intervention strategies for health enhancing physical activities are planned for this population.

  • 873.
    Arnell, Susann
    et al.
    Faculty of Medicine and Health, University of Health Care Research Center, Örebro University; School of Health Sciences, The Swedish Insititute for Disability Research (SIDR), Örebro University, Örebro Sweden.
    Jerlinder, Kajsa
    University of Gävle, Faculty of Health and Occupational Studies, Department of Health and Caring Sciences, Sports science. School of Health Sciences, The Swedish Institute for Disability Research (SIDR), Örebro University Sweden.
    Lundqvist, Lars-Olov
    Faculty of Medicine and Health, University of Health Care Research Center, Örebro University; School of Health Sciences, The Swedish Insititute for Disability Research (SIDR), Örebro University, Örebro Sweden.
    Perceptions of Physical Acitivty Participation Among Adolescents with Autism Spectrum Disorders: A Conceptual Model of Conditional Participation2018In: Journal of autism and developmental disorders, ISSN 0162-3257, E-ISSN 1573-3432, Vol. 48, no 5, p. 1792-1802, article id 29236210Article in journal (Refereed)
    Abstract [en]

    Adolescents with an autism spectrum disorder (ASD) are less physically active compared to typically developing peers. The reasons for not being physically active are complex and depend on several factors, which have not been comprehensively described from the adolescent’s perspective. Therefore, the aim was to describe how adolescents with an ASD perceive, experience and reflect on their participation in physical activity. Interviews with 24 adolescents diagnosed with high-functioning ASD, aged 12–16 years, were analysed with qualitative content analysis with an inductive approach. They expressed a variety of reasons determining their willingness to participate, which were conceptualized as: Conditional participation in physical activities. The present study presents an alternative perspective on participation in physical activity, with impact on intervention design.

  • 874.
    Arnell, Åsa
    et al.
    University of Gävle, Faculty of Health and Occupational Studies, Department of Health and Caring Sciences.
    Nyman, Elin
    University of Gävle, Faculty of Health and Occupational Studies, Department of Health and Caring Sciences.
    Unga vuxnas upplevelse och hantering av att leva med Multipel Skleros: En litteraturstudie2015Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Background: Multiple sclerosis (MS) is an autoimmune chronic disease which about 15.000 to 18.000 persons in Sweden suffer from. Common symptoms early in the disease may be numbness, walking and balance problems, fatigue, and visual disturbances.

    Purpose: The aim of the current study is to describe young adults experiences and management of living with multiple sclerosis. The aim is also to describe the method of the study group in the articles forming the result of this study.

    Methods: The present study used two databases, Cinahl and PubMed. The result is based on 11 scientific articles. With careful processing, the result has been shaped by three main headings and 10 subheadings.

    Main results: The result showed young adults reactions to and experiences of being diagnosed with MS. How different symptoms affect their physical and mental health, as well as the different strategies the MS-affected individuals use to manage the disease. The result also showed that the studygroup in the articles consisted 66,5% women and 33,5% men. The average age of participants was 44,8 years. The loss had been reported in eight of the 11 selected articles.

    Conclusion: With greater knowledge about MS and affected peoples experience of living with the diagnosis, nurses can get better in their profession and guide the injured people in their quest to find strategies to aid in everyday life. Adequate information from health care, support from family, friends and others affected with MS is of great importance to the affected individuals, giving them the opportunity to live a normal life. More research on MS in Children and men would be significant as the research available in the current situation in these areas is minimal.

  • 875.
    Arnells, Malin
    et al.
    University of Gävle, Faculty of Health and Occupational Studies, Department of Health and Caring Sciences.
    Östergrens, Nancy
    University of Gävle, Faculty of Health and Occupational Studies, Department of Health and Caring Sciences.
    Omvårdnadsproblem i samband med polyfarmaci hos äldre personer: En litteraturstudie2013Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The aim was to describe the nursing problems that may arise in connection withpolypharmacy in the elderly. The literature review was done with descriptive design. Datacollection through PubMed and Cinahl. The result was based on 12 quantitative articles. Theresults showed that there was a correlation between polypharmacy and several specificnursing problems among older people. The nursing problems that occurred most among thestudied articles were falls and fractures. It was revealed that the number of used medicinescould be identified as a risk factor for falls and fractures, but also drug type could influence.The results also showed that dizziness and balance problems could be associated withpolypharmacy. Other nursing problems that could connect with polypharmacy was impairednutritional status, such as weight loss and malnutrition. There were also a connection betweengastrointestinal problems and usage of many drugs. The conclusion was that a correlationbetween polypharmacy and several nursing problems among older people were found. A totalof four categories of nursing problems were identified in the studied articles: falls andfractures, impaired nutritional status and malnutrition, gastrointestinal problems, dizzinessand balance problems.

  • 876.
    Arnestål, Pernilla
    et al.
    University of Gävle, Faculty of Education and Business Studies, Department of Educational sciences, Educational science, Curriculum studies.
    Åberg, Sofie
    University of Gävle, Faculty of Education and Business Studies, Department of Educational sciences, Educational science, Curriculum studies.
    Kommunikationen som lätt glöms bort men säger mer än ord: Pedagogers erfarenheter och resonemang om barns kroppsspråk i förskolan2017Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    I det dagliga samspelet med andra människor sker kommunikation på olika sätt. Gester, miner, kroppsuttryck och den verbala förmågan att kommunicera blir synlig även i förskolan. Tidigare forskning visar att kroppsspråket är viktigt för att kunna förstå en annan individ när ord inte säger hela sanningen i en dialog. Vikten av att skapa goda relationer mellan barn och pedagoger bidrar till förmågan att förstå varandras budskap. Den verbala kommunikationen är oftast mer uppmärksammad än den tysta och kroppsspråket glöms bort. Studien grundar sig i att intervjua pedagoger för att skapa en bild av vilket resonemang och vilka erfarenheter som finns på förskolan gällande barns kroppsspråk. Med syfte att granska och analysera pedagogers förhållningssätt till barns kroppsspråk visar denna studie på för vem och hur kroppsspråket spelar en viktig roll. Resultatet visar att det finns förståelse för vad kroppsspråk är även om det inte uppmärksammas i samma utsträckning när det verbala språket finns. Att bli sedd och förstådd är viktigt för alla, stora som små, och kroppen utstrålar mer än orden som sägs. Studien har bidragit till att uppmärksamma pedagogers erfarenheter och resonemang om barns användande av kroppsspråket på förskolan.

  • 877.
    Arnfelt, Emma
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering, Energy system.
    En byggnads energiprestanda: En utredande och jämförande studie av Boverkets författningssamling BEN12017Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This report is an exploratory and comparative study of Boverkets constitution BEN1. In this study the constitution BEN1 is examined, why the constitution was established, when is it applicable and what advantages and disadvantages will come with it. Today the housing and service sector is using a major part of Europe’s final energy use, in addition to this, these sectors also represents a major part of the total carbon dioxide emissions. The EU-commission aims to reduce the housing and service sectors energy use and emissions. In 2002 the European parliament established directives and demands for buildings energy performance. These directives were changed in 2009-2010, which led to an inspection of the already existing Swedish constitution, this was found to be inadequate by the EU-commission. Sweden decided to create a new constitution in order to satisfy EU’s new directives and demands. The focus is on a normal usage of the building in a normal year in the new constitution, BEN1. 

    The reader should receive an idea and understanding about BEN1 and why it was established in this report. Beyond this, the study will show the changes that happen to a buildings energy performance after the constitution is applied and what advantages and disadvantages this could bring. 

    This study was performed by simulating the buildings energy use with the input from BEN1 in a simulation tool, IDA Indoor Climate and Energy. 

    The study shows that the energy performance will change but it also shows that further studies should be made in order to obtain a more carefully drawn and common conclusion.

  • 878.
    Arnkvist, Mattias
    et al.
    University of Gävle, Faculty of Education and Business Studies, Department of Business and Economic Studies.
    Vitasp Persson, Magnus
    University of Gävle, Faculty of Education and Business Studies, Department of Business and Economic Studies.
    Bolånetaket: -och dess påverkan på bolånemarknaden2012Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Title: The mortgage limitation and its impact on the mortgage market

    Level: Final assignment for Bachelor Degree in Business Administration

    Author: Mattias Arnkvist and Magnus Vitasp Persson

    Supervisor: Lars Steiner

    Date: 2011 – May

    Aim: We have conducted this report to find out what effect the mortgage limitation has had on the mortgage market since its introduction in autumn 2010. The mortgage limitation has both before and after the introduction been a topic of discussion as it affects many and above all makes it diffucult for certain customer groups.

    Method: This report was written by a qualitative method. The report uses qualitative and quantitative data. The quantitative data we have in the report are printed literature in books, articles and journals as well as data taken from Internet. Our qualitative part is based on the interviews with four of the largest banks in Sweden and the Financial Supervisory Authority, which is the state administrative authority that took the decision to introduce the mortgage limitation.

    Conclusions: The results of the collected data are that the mortgage limitation from a statistical point has resulted in the form of a breaking trend in which mortgage levels are now falling. The targets that the Financial Supervisory Authority had with the regulation were to reduce the mortgage levels and create a healthier credit market. According to our own personal opinions, the opinions of the banks we interviewed and the Financial Supervisory Authority, the mortgage limitation have been helpful to the market and all parties believe the regulation will stand firm.

    Suggestions for future research: When our report i based on a bank's perspective, it would be interesting to see a study on the subject with a different approach, for example with a consumer view.

    Contribution of the thesis: The contribution of this report is our unique way to present and discuss the data, through a unifying discussion method of a category analysis. This report is valued for both operators and consumers in the mortgage market.

    Key words: Mortgage limitation, mortgage market, Financial Supervisory Authority, banks, amortization. 

  • 879.
    Arnqvist, Malin
    University of Gävle, Department of Mathematics, Natural and Computer Sciences.
    Strömmingsspelet: Ett pedagogiskt spel om närmiljön i Hudiksvall2008Independent thesis Advanced level (professional degree), 15 credits / 22,5 HE creditsStudent thesis
  • 880.
    Arola, Helena
    University of Gävle, Faculty of Engineering and Sustainable Development.
    Den skötselextensiva trädgården: Åtgärdsförslag för en lättskött trädgård i samband med en nybyggd villa2011Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    I samband med ett bygge av en privatvilla ställs man inför många val. Det är inte ovanligt att trädgården hamnar i skymundan i förhållande till alla interiöra beslut som ska fattas.

    Min utgångspunkt i den här uppsatsen är att det finns en efterfrågan på lättskötta trädgårdar bland ägare till nybyggda villor i Gävle. Genom intervjuer med tio familjer som nyligen ”blivit med trädgård” och genom intervjuer med människor med erfarenhet i byggbranschen har jag tagit fram åtgärdsförslag för den skötselextensiva trädgården.

  • 881.
    Aronsson, Emma
    et al.
    University of Gävle, Faculty of Education and Business Studies, Department of Business and Economic Studies.
    Al-Kaebi, Jafar
    University of Gävle, Faculty of Education and Business Studies, Department of Business and Economic Studies.
    IAS 40 Förvaltningsfastigheter: En studie om hur noterade fastighetsbolag redovisar sina värdeförändringar2014Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Syfte: Uppsatsen syftar till att redovisa hur fastighetsföretagen som tillämpar IAS 40 redovisar sina värdeförändringar och hur de fastställer förvaltningsfastigheternas verkliga värde. Syftet är även att belysa de olikheter som finns i fastighetsföretagens resultaträkning.

     

    Metod: Uppsatsen består av en kvalitativ undersökningsmetod. Vår studie började med att göra en kvalitativ undersökning genom att granska 10 börsnoterade koncerners årsredovisningar från år 2005-2012.

     

    Resultat och slutsatser: De undersökta fastighetsföretagen använder sig av antingen kassaflödesmetoden eller ortprismetoden för att fastställa sina förvaltningsfastigheters verkliga värde. De bedömningar och antaganden som görs skiljer sig åt mellan företagen. Vi har sett att företagen väljer att placera de värdeförändringar lite på olika sätt i resultaträkningen. Det eftersom att lagen inte ger några klara direktiv om hur och var dessa värdeförändringar skall placeras i resultaträkningen, vilket gör att det blir svårt att jämföra dessa företag med varandra.

  • 882. Aronsson, Tomas
    et al.
    Daunfeldt, Sven-Olov
    University of Gävle, Department of Business Administration and Economics, Ämnesavdelningen för nationalekonomi.
    Wikström, Magnus
    Estimating Intrahousehold Allocation in a Collective Model with Houasehold Production2001In: Journal of Population Economics, ISSN 0933-1433, E-ISSN 1432-1475, Vol. 14, no 4, p. 569-584Article in journal (Refereed)
    Abstract [en]

    The purpose of this paper is to estimate the intra-family distribution of income and the individual demand for leisure and household production from Swedish cross-sectional household data. As a basis for the analysis, we use a collective model where each individual is characterized by his or her own utility function and divides total time between leisure, household production and market work. For the purpose of comparison, we also estimate a version that is consistent with a more traditional model of labor supply, the unitary model.

  • 883.
    Aroshvili, Giorgi
    University of Gävle, Department of Technology and Built Environment.
    GaN HEMT and MMIC Design and Evaluation2008Independent thesis Advanced level (degree of Master), 20 points / 30 hpStudent thesis
    Abstract [en]

    Gallium Nitride based devices due to their inherent material properties are considered as one of the most promising devices to realize high power, high frequency transistors with lower power consumption in next-generation applications. Although the technology has been studied since early 1970s, there is still a vast room and expectations in its yet unachieved findings. In present work the GaN technology is explored and state-of-the-art studies of GaN based HEMTs and their application in MMICs are presented. Different designs are presented and evaluated and the results are reported. In particular the HEMT performance is studied in terms of DC in addition to large signal conditions, where the device’s performance becomes function of power levels it is driven with. The peculiarities and challenges of building an automated Load-Pull setup are outlined and analysis for further improvements is presented.

  • 884.
    Arousell, Alida
    et al.
    University of Gävle, Faculty of Health and Occupational Studies, Department of Health and Caring Sciences.
    Östlund, Lizanne
    University of Gävle, Faculty of Health and Occupational Studies, Department of Health and Caring Sciences.
    Att beskriva personers upplevelser av hur det är att leva med schizofreni, en litteraturstudie2018Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
  • 885.
    Arrese Foruria, Ander
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering.
    Analysis of a Low Energy Building with District Heating and Higher Energy Use than Expected2016Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    In this thesis project, a building in Vegagatan 12, Gävle has been analysed. The main objective has been to find why it consumes more energy than it was expected and to solve theoretically the problems.This building is a low energy building certified by Miljöbyggnad which should use less than 55kWh/m2 year and nowadays it is using 62.23 kWh/m2. In order to find why the building is using more energy than the expected several different things has been measured and analyzed.First of all, the heat exchanger of the ventilation unit has been theoretically examined to see if it works as it should and it does. This has been done using the definition of the heat exchangers.Secondly, the heating system has been analysed by measuring the internal temperature of the building and high temperatures have been found (around 22°C) in the apartments and in the corridors. This leads to 5-10% more use of energy per degree.Thirdly, the position and the necessity of all the heaters have been checked. One of the heaters may not make sense, at least in the way the building has been constructed. This leads to bigger heating needs than the expected.Fourthly, the taps and shower heads have been checked to see if they were efficient. Efficient taps and shower heads, reduce the hot water use up to 40%. The result of this analysis has been that all taps and shower heads are efficient.Fifthly, the hot water system has been studied and some heat losses have been found because the lack of insulation of several pipes. Because of this fact 8.37kWh/m2 are lost per year. This analysis has been carried out with the help of an infra red camera and a TA SCOPE.Sixthly, the theoretical and real U values of the different walls have been obtained and compared (concrete and brick walls). As a conclusion, the concrete wall has been well constructed but, the brick wall has not been well constructed. Because of this fact 1 kWh/m2 of heat are lost every year. Apart from that, windows and thermal bridges have also been checked.

  • 886.
    Arrese, Sara
    et al.
    University of Gävle, Faculty of Education and Business Studies, Department of Business and Economic Studies.
    Wang, Liao
    University of Gävle, Faculty of Education and Business Studies, Department of Business and Economic Studies.
    Trust development in International Healthcare Services: Elekta in Spain2014Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Title: Trust development: a marketing strategy in the Internationalization of Healthcare Services.The case of Elekta in Spain

    Level: Master Thesis in Business Administration

    Author: Sara Arrese and Wang Liao

    Supervisor: Maria Fregidou-Malama

    Examiner: Akmal Hyder

    Date: 2014-10-02

    Aim: The aim of this research is to examine how trust developing affects International Healthcare Services marketing while settling down into a new country. Our study is applied to Elekta in Spain.

    Method: In order to carry out this research, qualitative data is used, a single case study is applied, questionnaires and semi-structured interviews were carried out to collect the needed primary data.

    Result and Conclusions: In the case of Elekta Spain, the trust development between suppliers and customer took place during the entire relationship. In addition, the trust level at company level and individual level were found to be the most significant leaving aside the country level as there were different opinions between customers (which did not find it a deciding factor) and Elekta. Hence, for the marketing strategy, standardization and adaptations can improve trust development.

    Suggestions for future research: Generalization cannot be made after this research as a single case study in one country has been the subject for investigation. Consequently, future research of other service industries and countries could expand this study.

    Contribution of the thesis: This thesis offers a new theoretical framework of trust development in the Spanish Healthcare Industry. This framework not only can be adapted to further study of other countries, but also can be adapted to further study of other service industries.

  • 887.
    Artieda Urrutia, Juan
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering.
    Desiccant Cooling Analysis: Simulation software, energy, cost and environmentalanalysis of desiccant cooling system2010Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Desiccant cooling is a technology that, based on a open psychrometric cycle, is able to provide cooling using heat as the main energy carrier. This technology uses a considerably smaller amount of electricity than refrigerators based on the vapor-compression cycle, which is an electricity driven cycle. Electricity is often more expensive than other types of energy and has CO2 emissions associated with its generation , so desiccant cooling has the potential of achieving both economic and environmental benefits.

    In addition to this, the heat the desiccant cooling cycle needs to work can be supplied at relative low temperatures, so it can use heat coming from the district heating grid, from a solar collector or even waste heat coming from industries.

    The system which will be studied in this report is a desiccant cooling system based on the model designed by the company Munters AB. The systems relies on several components: a desiccant rotor, a rotary heat exchanger two evaporative humidifiers and two heating coils. It is a flexible system that is able to provide cooling in summer and heat during winter.

    This study performs a deep economic and environmental analysis of the desiccant cooling systems, comparing it with traditional vapor compression based systems:

    In order to achieve this objective a user-friendly software was created, called the DCSS – Desiccant Cooling Simulation Software – that simulates the operation of the system during a year and performs automatically all the necessary calculations.

    This study demonstrates that economic savings up to 54% percent can be achieved in the running costs of desiccant cooling systems when compared to traditional compressor cooling systems, and  reductions up to39% in the CO2 emissions. It also demonstrates that desiccant cooling is more appropriate in dry climate zones with low latent heat generation gains.

    In addition to that, the DSCC software created will help further studies about the physical, economic and environmental feasibility of installing desiccant cooling systems in different locations.

  • 888.
    Arushanyan, Yevgeniya
    et al.
    Division of Environmental Strategies Research, Department of Sustainable development, Environmental Science and Engineering, School of Architecture and Built Environment, KTH Royal Institute of Technology, Stockholm, Sweden.
    Bjorklund, Anna
    Division of Environmental Strategies Research, Department of Sustainable development, Environmental Science and Engineering, School of Architecture and Built Environment, KTH Royal Institute of Technology, Stockholm, Sweden.
    Eriksson, Ola
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering, Environmental engineering.
    Finnveden, Göran
    Division of Environmental Strategies Research, Department of Sustainable development, Environmental Science and Engineering, School of Architecture and Built Environment, KTH Royal Institute of Technology, Stockholm, Sweden.
    Soderman, Maria Ljunggren
    Division of Environmental Systems Analysis, Department of Energy and Environment, Chalmers University of Technology, Göteborg, Sweden.
    Sundqvist, Jan-Olov
    IVL Swedish Environmental Research Institute, Stockholm, Sweden.
    Stenmarck, Åsa
    IVL Swedish Environmental Research Institute, Stockholm, Sweden.
    Environmental Assessment of Possible Future Waste Management Scenarios2017In: Energies, ISSN 1996-1073, E-ISSN 1996-1073, Vol. 10, no 2, article id 247Article in journal (Refereed)
    Abstract [en]

    Waste management has developed in many countries and will continue to do so. Changes towards increased recovery of resources in order to meet climate targets and for society to transition to a circular economy are important driving forces. Scenarios are important tools for planning and assessing possible future developments and policies. This paper presents a comprehensive life cycle assessment (LCA) model for environmental assessments of scenarios and waste management policy instruments. It is unique by including almost all waste flows in a country and also allow for including waste prevention. The results show that the environmental impacts from future waste management scenarios in Sweden can differ a lot. Waste management will continue to contribute with environmental benefits, but less so in the more sustainable future scenarios, since the surrounding energy and transportation systems will be less polluting and also because less waste will be produced. Valuation results indicate that climate change, human toxicity and resource depletion are the most important environmental impact categories for the Swedish waste management system. Emissions of fossil CO2 from waste incineration will continue to be a major source of environmental impacts in these scenarios. The model is used for analyzing environmental impacts of several policy instruments including weight based collection fee, incineration tax, a resource tax and inclusion of waste in a green electricity certification system. The effect of the studied policy instruments in isolation are in most cases limited, suggesting that stronger policy instruments as well as combinations are necessary to reach policy goals as set out in for example the EU action plan on circular economy.

  • 889.
    Arutunjan, Susanna
    et al.
    University of Gävle, Faculty of Education and Business Studies, Department of Business and Economic Studies.
    Johansson, Pernilla
    University of Gävle, Faculty of Education and Business Studies, Department of Business and Economic Studies.
    Ledarskap i Konsum Gävleborg: Ledarens och medarbetarnas perspektiv2011Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 890.
    Arvids, Mattias
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management.
    Samfälligheter: Föreningsförvaltning och Samfällighetsföreningsregistrets aktualitetsgrad2013Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Samfälligheter har en mycket viktig roll i Sverige för samverkan mellanfastigheter i förvaltningen av gemensamma resurser. Dessa kan förvaltas på två vis; genom föreningsförvaltning och delägarförvaltning. Föreningsförvaltninglämpar sig bäst för större samfälligheter som kräver många förvaltningsåtgärder och har många medlemmar. En sådan förening sköts genom en styrelse som är vald av medlemmarna. Styrelsens uppdrag går ut på att enligt lagstiftningen följa föreningens stadgar och stämmobeslut samt att se till att befintliga anläggningar förvaltas enligt anläggningsbeslutet och att nya anläggningar blir utförda. Detta uppdrag innebär dock vissa svårigheter; engagemanget sker på ideell grund och lagen innehåller inga närmare krav på styrelsens kompetens, vilket öppnar upp för olika former av problematik. Uppgifter om samfällighetsföreningarna står att finna i Samfällighetsföreningsregistret och Fastighetsregistret. Det förstnämnda har en bristande kvalité på sina uppgifter vilket utgör ett problem för såväl föreningarna som för utomstående.

    Med dessa förhållanden som bakgrund görs en studie på rådande lag och regelverk i området kombinerat med kvalitativa intervjuer av ordföranden vid samfällighetsföreningar. Syftet är att undersöka hur styrelsens uppdrag ser ut vid föreningsförvaltning, hur denna förvaltning fungerar i praktiken och vilka eventuella problem som står i vägen för optimalt fungerande samfällighetsföreningar, samt vilka åtgärder som kan tänkas ge Samfällighetsföreningsregistreten förbättrad registerkvalité.

    Resultatet av studien visar att det största problem området utgörs av medlemmarnas i många fall bristande engagemang samt styrelsernas avsaknad på specialkompetens. Det framkommer att de bäst lämpade åtgärderna för att avhjälpa bristen på kompetens utgörs av att upprätta dokument med lättöverskådlig information till styrelserna, men även till medlemmarna som på så vis skulle kunna ställa högre krav på styrelsens arbete och själva upptäcka fel och brister i förvaltningen. Även en del förtydligande av bestämmelserna i lagen anses vara lämpligt. För att öka medlemmarnas engagemang uppkommer inga konkreta förslag från det resonemanget som förs.

    Genom att erbjuda samfällighetsföreningarna möjligheten att registrera ändrade uppgifter på Internet samt ge dem en belöning för detta i slag av en medlemsförteckning bör styrelserna bli mer noggranna i detta avseende, vilket framkommer i studien. Den främsta orsaken till att samfällighetsföreningarna inte anmäler ändringar i tillfredsställande grad beror på bristande kunskap, vilket bör kunna avhjälpas genom att någon form av broschyr ges ut till styrelsemedlemmarna innehållande relevant information.

  • 891.
    Arvidsson, Angelica
    et al.
    University of Gävle, Faculty of Health and Occupational Studies, Department of Health and Caring Sciences, Caring science.
    Spennare, Malin
    University of Gävle, Faculty of Health and Occupational Studies, Department of Health and Caring Sciences, Caring science.
    Sjuksköterskors erfarenheter att vårda patienter med drogmissbruk i sjukvården: En litteraturstudie2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Bakgrund: Sjuksköterskor möter många olika individer. 780 000 individer över 18 år i Sverige uppskattades 2009 - 2011 ha ett drogmissbruk eller drogberoende. Alla har rätt till samma vårdkvalité oavsett livssituation och bakgrund. Människor med drogberoende känner sig ofta stigmatiserade av samhället. Vilket område Sjuksköterskan än jobbar inom kommer sjuksköterskan någon gång möta patienter med drogmissbruk.

    Syfte: Syftet med denna litteraturstudie var att beskriva sjuksköterskors erfarenheter av att vårda patienter med drogmissbruk inom sjukvården samt beskriva de inkluderade artiklarnas datainsamlingsmetod.

    Metod: denna studie är en beskrivande litteraturstudie. Två stycken databaser användes under sökningen, 12 vetenskapliga artiklar användes i resultatet. Dessa granskades upprepade gånger och sammanställdes.

    Huvudresultat: Sjuksköterskor beskrev ofta negativa erfarenheter av att vårda patienter med drogmissbruk.  Sjuksköterskor beskrev att de ofta upplevde en rädsla och oro inför våldsamma och hotfulla situationer. Att patienter med drogmissbruk hade eget ansvar över sitt liv och hälsa beskrevs av en del av sjuksköterskorna. En del av sjuksköterskorna beskrev att de tyckte att det var viktigt att vara en förespråkare för patienter med drogmissbruk.

    Slutsats: Alla människor har samma rätt till vård och att uppleva hälsa oavsett livssituation och bakgrund. Att leva med drogmissbruk är inget som ska inverka på omvårdnadskvalitén som ges till patienterna. För att utveckla vården och minska patienternas upplevelse av stigmatisering behövs mer och regelbunden utbildning för sjuksköterskor och andra professioner.

  • 892.
    Arvidsson, Anneli
    University of Gävle, Department of Mathematics, Natural and Computer Sciences.
    Pedagogens påverkan på barns kost i förskolan2009Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
  • 893.
    Arvidsson, Carina
    et al.
    University of Gävle, Department of Education and Psychology, Ämnesavdelningen för didaktik.
    Sverkersdotter, Lina
    University of Gävle, Department of Education and Psychology, Ämnesavdelningen för didaktik.
    Barn i sorg: Förskollärare med lekarbetspedagogisk utbildning intervjuade om barn och sorg2009Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Syftet med detta examensarbete är att utforska pedagogiken vid förskolans bemötande och lekens betydelse för barn som genomgår sorg. Vi vill genom detta arbete få kunskap om hur pedagoger bör förhålla sig till barn som sörjer. Genom att utgå från litteraturen som finns inom ämnet och intervjuer med förskollärare som vidareutbildat sig till lekarbetspedagoger, har vi studerat hur pedagoger bemöter barn som drabbats och hur lekarbetspedagogik kan hjälpa dem. Resultatet visar att barn sörjer på olika sätt och att de sörjer i perioder. Då barn inte har den verbala förmågan att utrycka sin sorg kan de istället göra det genom att till exempel leka och rita. Resultatet visar vidare på att leken enligt respondenterna är en viktig del i barns sorgearbete och att vuxna bör finnas där för barnen som genomgår sorg. Låta barnen prata när de vill prata och inte tvinga dem till det. Vuxna bör även svara ärligt på barnens eventuella frågor kring det som skett.

  • 894.
    Arvidsson, Caroline
    et al.
    University of Gävle, Faculty of Education and Business Studies, Department of Educational sciences, Educational science, Curriculum studies.
    Rask, Evelina
    University of Gävle, Faculty of Education and Business Studies, Department of Educational sciences, Educational science, Curriculum studies.
    Lämning och hämtningssituationer i förskolan: En enkätundersökning om vårdnadshavares upplevelser av lämning och hämtningssituationer i förskolan2018Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Undersökningen har till syfte att undersöka hur vårdnadshavare upplever mötet med pedagoger vid lämning och hämtningssituationer. Den valda metoden är traditionella enkäter i pappersform. Undersökningen grundar sig i ett sociokulturellt perspektiv som teoretisk utgångspunkt, med centrala analysbegrepp som relationer och kommunikation, mellan vårdnadshavare och pedagog. Resultatet påvisar att vårdnadshavare anser att det är viktigt, att någon pedagog möter upp dem när de lämnar och hämtar sitt barn på förskolan. Vårdnadshavarna uppger att pedagogerna oftast är närvarande vid dessa situationer, med undantag vid stressade situationer som när många barn lämnar samtidigt eller när barnen äter frukost. Det framkommer från vårdnadshavarna att det har en stor betydelse att pedagogerna för en dialog med deras barn samt med dem själv. Vårdnadshavarna belyser att pedagogerna inte alltid har uppsikt över vad deras barn har gjort under dagen, vilket det uttrycks en önskan om. I det vanligaste samtalsämnet framkommer det från vårdnadshavarna, att det oftast handlar om vad som kommer att ske under dagen när man lämnar sitt barn. När vårdnadshavarna hämtar sitt barn på förskolan kan samtalsämnet variera beroende vilken ålder deras barn är i. Diskussionen som förts är att vårdnadshavarna upplever lämning och hämtningssituationer olika, beroende om de har yngre eller äldre barn. Det framkommer också att vårdnadshavarna upplever pedagogerna olika när de lämnar och hämtar sitt barn, där det framkommer att kommunikationen ibland brister mellan vårdnadshavare och pedagoger. Detta kan i sin tur leda till att interaktion och relationsprocessen mellan varandra blir lidande, där man inte längre känner att man har respekt och förtroende för varandra. Kanske är det av den anledningen som vårdnadshavarna anser att det är viktigt att bli bemött av en pedagog, där de vill att kommunikationen fungerar för att ge trygghet och tillit när de lämnar sitt barn - det bästa de har!

  • 895.
    Arvidsson, Elina
    et al.
    University of Gävle, Faculty of Education and Business Studies, Department of Business and Economic Studies.
    Kastemyr, Rebecca
    University of Gävle, Faculty of Education and Business Studies, Department of Business and Economic Studies.
    Switching intentions påverkan på GenerationY och Baby Boomers: En kvantitativ studie inom banksektorn2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Titel: Switching intentions påverkan på Generation Y och Baby Boomers – En kvantitativ studie

    Nivå: Examensarbete på Grundnivå (kandidatexamen) i ämnet företagsekonomi

    Författare: Elina Arvidsson och Rebecca Kastemyr

    Handledare: Jonas Molin och Lars-Johan Åge

    Datum: 2018 - maj

    Syfte: Banker har idag problem med att få kunder att stanna och vara lojala mot dem, något som kan bero på att kunderna inte känner sig tillfredsställda med de tjänster och den service banken erbjuder. Vissa forskare har sett att det oftare är yngre bankkunder som byter bank än äldre, medan andra menar att sådant inte är fallet. Syftet med vår studie är därmed att öka förståelsen för hur Baby Boomers och Generation Y's switching intentions påverkar deras intentioner att byta eller behålla sin bank. För att besvara syftet har vi valt att ta hjälp av några forskningsfrågor som lyder:

    • Vilka faktorer bidrar till att Baby Boomers väljer att byta eller behålla sin bank?
    • Vilka faktorer bidrar till att Generation Y väljer att byta eller behålla sin bank?
    • Vad är skillnaden mellan Baby Boomers och Generation Y's switching intentions?

    Metod: I studien användes en kvantitativ metod där data samlats in via en webbaserad enkätundersökning. Studien riktar sig till två populationer; generation Baby Boomers som består av individer födda mellan år 1945 och 1964 och Generation Y som består av individer födda mellan år 1980 och 1999 som båda deltagit i enkätundersökningen. De data som samlats in har sedan analyserats i statistikprogrammet SPSS där vi tog fram deskriptiv statistik, error bars, korrelationsanalys, t-test och korstabell. Dessa analyser har sedan använts för att svara upp på studiens syfte.

    Resultat & slutsats: Sambanden mellan generationstillhörighet och de testade variablerna är till stor del svaga, vilket gör att vi utifrån vår studie kan konstatera att Baby Boomers och Generation Y är mer lika än forskare tidigare trott. De fyra testade variablerna har samtliga viss påverkan på bankkundernas switching intentions, vilket innebär att bankerna bör ta dessa variabler i beaktning för att undvika att förlora kunder.

    Examensarbetets bidrag: Studien bidrar till ökad förståelse för Generation Y och Baby Boomers switching intentions och vad som påverkar det. Studien har bidragit tillen förändrad syn på båda generationernas switching intention i jämförelse med tidigare forskning. Vår förhoppning är att studien ska bidra till att öka förståelsen för switching intentions bland bankerna för att de ska kunna ta fram strategier utifrån de fyra testade variablerna och därigenom skapa kundnöjdhet och minska kundernas switching intentions.

    Förslag till fortsatt forskning: Vår förhoppning är att vidare forskning ska kunna utveckla resultatet som studien bidragit med ytterligare. Fortsatta studier skulle kunna jämföra olika banker och se hur våra fyra variabler påverkar enskilda banker, samt studera andra kombinationer av variabler och andra generationer.

  • 896.
    Arvidsson, Elisabet
    University of Gävle, Faculty of Health and Occupational Studies, Department of Health and Caring Sciences, Caring science.
    BVC-sköterskors reflektioner av att arbeta med mammor med förlossningsdepression och deras barn: En intervjustudie2017Independent thesis Advanced level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Introduction: About 10–15% of new mothers are affected by Post Partum Depression. A new mother with depression means a higher risk of attachmentsproblem with her newborn child. The child health care nurse has a regular contact with newborns and their mothers. Therefor they can have an important role in the process of attachment. Aim: The aim of the study was to describe reflections of the child health care nurses in their work with mothers with Postpartum Depression and their newborn. Method: The present study had a descriptive design with a qualitative approach. Eight child health care nurses  were interviewed with semi-structured interviews. The material was analyzied using qualitative content analysis. Result: A underlying theme was; ”To have knowledge and to know your limitations, for a trustworthy interaction.” The theme had four descriptive categories; ” Ways to discover the mother with a postpartum depression”, ”The interaction with the mother” ”Strategies at work” and ”Challenges in work”. Conclusion: During the study it has been revealed that if guidelines and routines are to work optimally discovering the mother with Post Partum Depression, it requires a good communication. Already at the first meeting a journey began, that could mean a working interaction or not. It required in addition to formal knowledge of Postpartum depression also an ability to interact with the mother. It was about getting the mother´s confidence.

  • 897.
    arvidsson, emma
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Electronics, Mathematics and Natural Sciences.
    Bakom Ladan: En skiss eller två på en hälsoträdgård på Wij Trädgårdar2014Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Abstract

    The research in the interdisciplinary field of natural-human-health-design has in recent decades gainedmomentum and led to new or new-old ways of thinking and acting in terms of planning and design of outdoorenvironments with the aim of health promotion. Concrete concept models and design guides have begun toemerge as a result of this research.The purpose of this work is to use these guides to develop a design proposal for a supposed health garden,with Wij Trädgårdar in Ockelbo as a base. This has been done in the form of a process description. The targetgroup for the design proposal is long-term unemployed and people who have come to Sweden as refugees.Since the specific design recommendations could not be found for the selected target group, the main materialwas general guidelines for health gardens in combination with guidelines for health gardens directed to targetgroups with stress-related problems, which is a broad target group for which there are relatively much currentresearch.The result is a process description of the progression towards a sketch on a health garden, designed for aspecific spot on Wij Trädgårdar, but available for use in other locations, provided adjustments is made to thespecific location. The sketch is supplemented with plant suggestions to different parts of the garden. A sketchof an alternative proposal is included as a smaller, faster and cheaper version of the main design proposal.

  • 898.
    Arvidsson, Inger
    et al.
    Division of Occupational and Environmental Medicine, University Hospital, Lund, Sweden.
    Hansson, Gert-Ake
    Division of Occupational and Environmental Medicine, University Hospital, Lund, Sweden.
    Mathiassen, Svend Erik
    University of Gävle, Centre for Musculoskeletal Research.
    Skerfving, Staffan
    Division of Occupational and Environmental Medicine, University Hospital, Lund, Sweden.
    Neck postures in air traffic controllers with and without neck/shoulder disorders2008In: Applied Ergonomics, ISSN 0003-6870, E-ISSN 1872-9126, Vol. 39, no 2, p. 255-260Article in journal (Refereed)
    Abstract [en]

    Prolonged computer work with an extended neck is commonly believed to be associated with an increased risk of neck-shoulder disorders. The aim of this study was to compare neck postures during computer work between female cases with neck-shoulder disorders, and healthy referents. Based on physical examinations, 13 cases and 11 referents were selected among 70 female air traffic controllers with the same computer-based work tasks and identical work stations. Postures and movements were measured by inclinometers, placed on the forehead and upper back (C7/Th1) during authentic air traffic control. A recently developed method was applied to assess flexion/extension in the neck, calculated as the difference between head and upper back flexion/extension. Results: Cases and referents did not differ significantly in neck posture (median neck flexion/extension: -10° vs. -9°; p=0.9). Hence, the belief that neck extension posture is associated with neck-shoulder disorders in computer work is not supported by the present data

  • 899.
    Arvidsson, Inger
    et al.
    Department of Occupational and Environmental Medicine, Lund University Hospital, Lund, Sweden.
    Hansson, Gert-Åke
    Department of Occupational and Environmental Medicine, Lund University Hospital, Lund, Sweden.
    Mathiassen, Svend Erik
    University of Gävle, Centre for Musculoskeletal Research. University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational and Public Health Sciences, Occupational health science.
    Skerfving, Staffan
    Department of Occupational and Environmental Medicine, Lund University Hospital, Lund, Sweden.
    Changes in physical workload with implementation of mouse-based information technology in air traffic control2006In: International Journal of Industrial Ergonomics, ISSN 0169-8141, E-ISSN 1872-8219, Vol. 36, no 7, p. 613-622Article in journal (Refereed)
    Abstract [en]

    Effects on physical workload were quantified when introducing new information technology in air traffic control. Seven female and seven male air traffic controllers were studied in an old control system, and during simulated - but similar - work in a new, mouse-based system. Postures, movements and muscular load were recorded (inclinometry for head, neck, back and upper arms; goniometry for wrists; electromyography for the trapezius and forearm extensor muscles). The new system was associated with lower movement velocities than the old one (examples; [50th percentiles] head flexion: 2 vs. 5 o/s, P<0.01; right arm elevation: 3 vs. 6 o/s; P<0.01; [90th percentile] wrist flexion: 19 vs. 50 o/s, P<0.01), less varying postures (head: 95th-5th percentile range 17° vs. 34o; P<0.01), and less muscular rest in the right forearm extensors (3.5 vs. 9% of time; P<0.05). The old/new system differences were amplified at high work intensities. The new air traffic control system caused a major change of physical exposures, probably associated with an increased risk of musculoskeletal disorders in arms and hands.

    Relevance to industry

    While this study concerned the specific changes in the introduction of a new air traffic control system, we believe that the findings are applicable to similar technological developments in other settings.

  • 900. Arvidsson, Inger
    et al.
    Hansson, Gert-Åke
    Mathiassen, Svend Erik
    University of Gävle, Belastningsskadecentrum.
    Skerfving, Staffan
    "Gamnacke" och nackbesvär vid datorarbete: finns det något samband?2005In: Svenska Läkaresällskapets Riksstämma, 2005Conference paper (Other academic)
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