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  • Public defence: 2018-12-07 10:00 Föreläsningssal 5, Falun
    Sundström Rask, Katarina
    Dalarna University, School of Education, Health and Social Studies, Educational Work.
    Introduktionsverksamhet för nyanlända elever i grundskolans tidiga år2018Licentiate thesis, monograph (Other academic)
    Abstract [en]

    Children who migrate to Sweden are usually introduced to the Swedish school through some kind of introduction programme in their new community. This study examines the experiences of newly arrived children participating in school introduction in the early school years, as well as the experiences of the teachers and principals working with the programme. In the community in which this study is situated, newly arrived children participate in a special school unit where the goal is to map their experiences and skills from former education, and where the teaching of Swedish as a second language is seen as an important part of the introduction.

    Forty-two interviews (40 individual and 2 pairs) were conducted with principals, teachers and newly arrived children (ages appropriate for Years 2, 3, 4 and 5 in elementary school). Employing a social constructivist perspective, together with inspiration from Critical Discourse Analysis, the study aimed at outlining the discourses the participants draw on when speaking about the school introduction and how these discourses affect the participants’ positioning of themselves and other participants in the school practice. Fairclough’s theory of discourse (1992, 2001) provides an understanding of how participants experience being part of the school introduction as well as their own and other participants’ positions in the school practice due to ambient discourses.

    The results indicate that four discourses dominate the practice and affect the participants’ view of each other and themselves as well as their possibilities to impact the practice and their own situation as being a part of it. The four discourses that were identified are described as 1) the Swedish language as a key to success in school, 2) the adjustment of behaviour as a key to success in school, 3) the substantial immigration as a challenge, and 4) heed.

  • Wijnbladh, Cecilia
    Dalarna University, School of Education, Health and Social Studies, Educational Work.
    Språklig medvetenhet och skriftspråksförberedande undervisning i förskoleklass: Fem förskoleklasslärares undervisning2018Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Syftet med den här studien är att ge en nulägesbeskrivning och öka förståelsen för undervisningen i förskoleklass vad gäller innehållet i undervisningen som syftar till att utveckla elevers språkliga medvetenhet och skriftspråksförberedande förmågor. Det är av särskilt intresse i en tid när förskoleklassen är föremål för ökad politisk styrning.

    Studiens teoretiska inramning är det sociokulturella perspektivet med teoretiska begrepp såsom språklig medvetenhet, skriftspråksutveckling, undervisning och didaktisk teori. Materialet består framför allt av intervjuer med lärare och observationer av undervisningen och har analyserats med hjälp av tematisk innehållsanalys. Kartläggningsmaterialet i språklig medvetenhet

    Hitta språket har också lagts som ett raster vid analysen.

    Av resultatet framgår att undervisningen utgår från läroplanen, och att läromedel, särskilt Bornholmsmodellen utgör dominerade inslag i undervisningen. Studiens bidrag förutom ovanstående är att bidra till den ackumulerade forskningen vad gäller undervisningen i allmänhet och i synnerhet hur undervisningen kan beskrivas i slutet av förskoleklassåret.

  • Tyllström, Camilla
    Dalarna University, School of Education, Health and Social Studies, Educational Work.
    Sjunga för att lära: Hur lärare anser att sång, musik, rim och ramsor kan bidra till ett lärande i engelskämnet för årskurs F-32018Independent thesis Advanced level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Engelskämnet bör ses som centralt i skolan då det har en del i elevernas kommande yrkesliv i och med den globalisering som sker i vår värld. Forskning pekar på att musik och sång kan bidra till en mer stimulerande och avslappnad miljö i de yngre skolåren. Detta examensarbetet syftar till att undersöka hur sång, musik, rim och ramsor kan användas i engelskundervisningen för elever i årskurs F-3. I undersökningen är lärares perspektiv i fokus, där deras åsikter om hur och varför de använder sång, musik, rim och ramsor i engelskundervisningen är centrala. Att undersöka detta kan ge insikt i hur sång, musik, rim och ramsor används då tidigare forskning påvisar att det inte nyttjas i den utsträckning som det finns möjlighet till. Undersökningen genomfördes med enkäter och intervjuer med olika lärare. Den insamlade datan analyserades sedan utifrån innehållsanalys och multivariat analys. I analysen tillämpades Vygotskijs sociokulturella perspektiv samt Ashers teori,

    total physical response. Resultatet visade att förekomsten av innehållet var vanligt och lärarna i studien var positivt inställda till användningen av sång, musik, rim och ramsor. Lärarna i studien såg även ämnesinnehållet som ett bidrag till lärande samt att det var ett lustfyllt sätt för eleverna att lära sig engelska på. Trots att lärarna i huvudsak var positivt inställda till ämnesinnehållet så såg de även nackdelar då de menar att eleverna kan tappa fokus och lektionerna kan bli röriga. Ämnen för fortsatt forskning kan vara att belysa elevperspektivet samt att mer utförligt undersöka verkningsfulla metoder inom sång, musik, rim och ramsor.

  • Lagin, Madelen
    Dalarna University, School of Technology and Business Studies, Business Administration and Management. Örebro universitet, Handelshögskolan vid Örebro Universitet.
    The Price We Pay: The Autonomy of Store Managers in Making Price Decisions: The Case of Grocery Retailing2018Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    In this dissertation, the store manager’s autonomy in making price decisions is explored to further our understanding of this actor. As a result, the store manager’s embeddedness in the manufacturer-retailer-consumer triad provides a more holistic view of the price decisions made in grocery retailing. In both the scientific literature and the grey literature, discussions of whom it is who actually makes the price decisions within grocery retailing are diverse and point to all three actors in the triad, including the store manager.

    Through a theoretical departure in which price decisions and autonomy is discussed, it is possible to explore the store manager’s ability to make price decisions in relation to the manufacturer-retailer-consumer triad. As an embedded actor in the triad, the store managers can, theoretically andspeculatively, face restrictions in relation to all actors.

    The context in which this dissertation is placed is that of the grocery retail branch in Sweden, where the three largest retail organisations have participated in the dissertation. This dissertation consists of the cover paper and five appended papers, where autonomy is discussed from a qualitative perspective within the frame of a mixed method approach. By looking at price decisions from the store manager’s perspective, and his/her freedom in making price decisions, the dissertation contributes to the area of micro-foundations of pricing.

    It is concluded that while store managers might not be formally autonomous in making price decisions, and that connected restrictions, due to the relationship and position of the actors in the original triad are in place, the store managers have enough freedom in relation to the store to implicitly and operationally influence price decisions. As a result, it is concluded that the possibility to resist decisions by acting as if they are autonomous, store managers become important actors to be taken into account when price decisions are made and evaluated.

  • Public defence: 2018-11-23 10:00 Kollegiesalen, Stockholm
    Zhou, Nian
    Dalarna University, School of Technology and Business Studies, Materials Technology. KTH, Yt- och korrosionsvetenskap.
    Surface integrity and corrosion behavior of stainless steels after grinding operations2018Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    Stainless steels are widely used in applications where both the mechanical properties of steels and high corrosion resistance are required. There is continuous research to enable stainless steel components to be produced in a more economical way and be used in more harsh environments. A way to achieve this is to correlate the service performance with the production processes.

    The central theme of this thesis is surface integrity and corrosion, especially the stress corrosion cracking behavior, after grinding processes. Controlled grinding parameters, including abrasive grit size, machine power and grinding lubricant, were used and the resulting surface properties studied for austenitic 304L and duplex 2304 stainless steels. The abrasive grit size effect was found to have a larger influence. Surface defects, a highly deformed surface layer and the generation of a high level surface tensile residual stresses along the grinding direction were observed as the main types of damage. 

    The effect of grinding on stress corrosion cracking behavior of austenitic 304L, ferritic 4509 and duplex 2304 stainless steels in chloride-containing environments was also investigated.  The abrasive grit size effect on corrosion behavior for the three grades was compared. Grinding-induced surface tensile residual stress was suggested as the main factor to cause micro-cracks on the ground surface for 304L and 2304; for 4509, grinding-induced grain fragmentation was considered as the main factor for the initiation of extensive micro-pits. For duplex 2304, the microstructure and micro-notches in the as-ground surface also had significant influence. Depending on the surface conditions, the actual loading by four-point bending was found to deviate from the calculated value using the formula according to ASTM G39 by different amounts. The knowledge obtained from this work can provide guidance for choosing appropriate stainless steel grades and grinding parameters; and can also be used to help understanding the failure mechanism of ground stainless steel components during service.

  • Rahman, Naseef
    Dalarna University, School of Technology and Business Studies, Tourism Studies.
    International Students’ Perception of Risk and Safety when Travelling: Case Study on students of Dalarna University, Borlange, Sweden2018Independent thesis Advanced level (degree of Master (Two Years)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    International students are becoming a more and more attractive group for tourism agencies, and for those responsible for regional development, some study is warranted to explore how one may effectively recognize their preferences, wants, needs, and constraints to draw their attention towards the destination or to experience tourism firm’s offerings specially in this research about their perception about risk, safety and security during their travelling. Perception of risk, safety and security of a tourist destination may create a broader platform of preferences, and associated constraints. Perceived risk is defined as a consumer’s perception of the overall negativity of a course of action based upon an assessment of the possible negative outcomes and the likelihood that those outcomes will occur. Tourism, exclusively international tourism, is highly delicate to safety and security issues. It is one of the enterprise most exposed to changes in the world stage that may produce alteration in tourist behavior. A clearer perceptive of the traveler’s decision-making process and the role of intervening variables are compulsory, notably respecting travel inhibitors, such as risk perception, to assist develop enhanced destination development or recovery strategies. Constructing conditions for tourists to feel safe before and during the trip may be demanding to the success of a destination competing internationally.

    The current study attempts to fill a gap by exploring risk perceptions of individual international students who engaged in tourism and try to explore the concerned safety measure among them.

    The findings revealed that the most common risk perception and endeavors were transportation, fraudulent behavior of locals towards tourists, losing valuables, health issues and sexual harassment. However, the international students with experience with travelling themselves gave the safety and security precautions needed to minimize these risks. The safety and security features involve avoiding informal sectors, taking care of personal belongings, being always cautious about the situation happening around, educating themselves about the destination they are visiting, proper health care and proper authority to report any mishaps. After this research it could be understood that international student tourist is concerned about their safety and they would improve the situation of risk they perceive if given the chance to.

  • Luca, Claudia Atena
    Dalarna University, School of Technology and Business Studies, Tourism Studies.
    Memorable experiences in rural tourism: Study of Rural areas from Cluj Napoca County, Romania2018Independent thesis Advanced level (degree of Master (Two Years)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    With the shift nowadays towards an experience economy, the increased attention placed on memorable experiences and how to stage them can be viewed as a major trend which can act as a source of information regarding the stories that people share about themselves and their self-perceptions, as well as helping businesses make a step towards their guests. In this vein, rural tourism is highly consumed by people searching for these unique and memorable experiences, but the knowledge on tourists’ experiences in a rural setting are very limited. Therefore, this paper seeks to examine what memorable experiences tourists encounter in the rural setting, and more importantly, why were they memorable. In order to answer these questions, the researcher undertook a qualitative approach and in depth semi structured interviews were conducted with people who travelled in the Cluj Napoca County from Romania. The findings revealed an amalgam of experiences that people encounter in the rural setting, combined with various reasons why the experiences were considered memorable in the eyes of respondents. The main findings show how the optimal memorable tourism experience is usually comprised of several factors involving multiple experiential dimensions, and an important influence is represented by social interactions alongside positive emotions.

  • Laspa, Vasiliki
    Dalarna University, School of Technology and Business Studies, Tourism Studies.
    Couchsurfing: An understanding of the hosts’ willingness to offer accommodation free of charge to relative strangers2018Independent thesis Advanced level (degree of Master (Two Years)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The aim of the research was to get a better understanding of why one might be a couch surfing host. The focus of this study is the general concept of the Couchsurfing platform which has created the possibility for travelers from all over the world, to offer or to request (or both) hospitality free of charge. As a part of a qualitative study, online interviews were held with six hosts located in different countries around the world. The findings of the data gathered while conducting the research, give an insight of how people choose their potential guests, how they negotiate trust along with what is the that they gain out of sharing the privacy of their homes with ‘strangers’.

  • Ferreira, Elisabete
    Dalarna University, School of Humanities and Media Studies, English.
    The expression of stance in English L1 and L2 student writing: A corpus-based study of adverbial stance marking2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The increasing interest in how stance is expressed specifically in academic writing in English

    has generated extensive research in the past decades. Focusing on the grammatical marking of

    stance, this comparative study investigates the use of stance adverbials by native (L1) and nonnative

    (L2) speakers of English in a corpus of student academic writing. The aim is to examine

    the most distinctive differences and similarities in the use of adverbial stance markers by each

    student group. The material comes from the British Academic Writing in English (BAWE)

    corpus, a collection of proficient writing by English L1 and L2 students from different firstlanguage

    backgrounds. Using quantitative methods and a semantically-based classification, the

    forms and types of stance adverbials most frequently used by the two student groups are

    identified and compared. The findings indicate that L1 students employ more adverbial stance

    markers overall, which contradicts results from previous research, but that both L1 and L2

    students make use predominantly of a limited number of stance adverbials. The analysis of the

    most frequently used adverbials indicates underuse (e.g.

    perhaps) and overuse (e.g. kind of,

    mainly

    ) of specific markers on the part of the L2 group. The results partially invalidate the

    hypothesis tested that L2 students both rely on a narrower range of stance adverbials and

    employ them more frequently than L1 students.

  • Mocumbi, Sibone
    et al.
    McKee, Kevin
    Dalarna University, School of Education, Health and Social Studies, Social Work.
    Munguambe, Khátia
    Chiau, Rogério
    Högberg, Ulf
    Hanson, Claudia
    Wallin, Lars
    Sevene, Esperança
    Bergström, Anna
    Ready to deliver maternal and newborn care? Health providers' perceptions of their work context in rural Mozambique2018In: Global Health Action, ISSN 1654-9716, E-ISSN 1654-9880, Vol. 11, no 1, article id 1532631Article in journal (Refereed)
    Abstract [en]

    BACKGROUND: Deficiencies in the provision of evidence-based obstetric care are common in low-income countries, including Mozambique. Constraints relate to lack of human and financial resources and weak health systems, however limited resources alone do not explain the variance. Understanding the healthcare context ahead of implementing new interventions can inform the choice of strategies to achieve a successful implementation. The Context Assessment for Community Health (COACH) tool was developed to assess modifiable aspects of the healthcare context that theoretically influence the implementation of evidence.

    OBJECTIVES: To investigate the comprehensibility and the internal reliability of COACH and its use to describe the healthcare context as perceived by health providers involved in maternal care in Mozambique.

    METHODS: A response process evaluation was completed with six purposively selected health providers to uncover difficulties in understanding the tool. Internal reliability was tested using Cronbach's α. Subsequently, a cross-sectional survey using COACH, which contains 49 items assessing eight dimensions, was administered to 175 health providers in 38 health facilities within six districts in Mozambique.

    RESULTS: The content of COACH was clear and most items were understood. All dimensions were near to or exceeded the commonly accepted standard for satisfactory internal reliability (0.70). Analysis of the survey data indicated that items on all dimensions were rated highly, revealing positive perception of context. Significant differences between districts were found for the Work culture, Leadership, and Informal payment dimensions. Responses to many items had low variance and were left-skewed.

    CONCLUSIONS: COACH was comprehensible and demonstrated good reliability, although biases may have influenced participants' responses. The study suggests that COACH has the potential to evaluate the healthcare context to identify shortcomings and enable the tailoring of strategies ahead of implementation. Supplementing the tool with qualitative approaches will provide an in-depth understanding of the healthcare context.

  • Anna Karin, Fändrik
    et al.
    Dalarna University, School of Education, Health and Social Studies, Educational Work.
    Lundgren, Mats
    Dalarna University, School of Education, Health and Social Studies, Education.
    Nicola, Nerström
    Dalarna University, School of Education, Health and Social Studies, Educational Work.
    Kollegial professionsutveckling för skolledare och lärare inom gymnasial yrkesutbildning: En fallstudie av en forskningscirkel2018In: Nordic Journal of Vocational Education and Training, ISSN 2242-458X, E-ISSN 2242-458X, Vol. 8, no 2, p. 1-21Article in journal (Refereed)
    Abstract [en]

    This article describes how school leadership in a vocational secondary school used a research circle to establish collegial learning. The goal was to develop the teaching skills of teachers and, as a result, also develop the ability of students to assess their own knowledge and understanding, as well as their capacity to learn. The results are based on data from a qualitative case study in accordance with an action research tradition. The article reflects a contemporary education policy debate on the role of teachers in relation to students’ poorer study results. The teachers that participated developed and tested subject-specific self-assessment matrices in mini-research projects. Many of the students seemed to benefit little from using these matrices. Possible explanations may be that the students felt no motivation neither to improve their knowledge and skills nor to raise their grades. There did, however, seem to be differences between theoretical and vocational subjects. The research circle served to develop collegial learning among the participants and also played a role in the establishment of a school development group.

  • Axelson, Tomas
    et al.
    Dalarna University, School of Humanities and Media Studies, Religious Studies.
    Hansson, Ulf
    Dalarna University, School of Education, Health and Social Studies, Political Science.
    Sedelius, Thomas
    Dalarna University, School of Education, Health and Social Studies, Political Science.
    Stier, Jonas (Editor)
    Dalarna University, School of Humanities and Media Studies.
    Från privatsak till politisk kraft?: Borlänges interreligiösa råd och förväntningar på religion som resurs i lokalsamhället2018Report (Other academic)
  • Public defence: 2018-11-28 13:00 B311, Borlänge
    Laryea, Rueben
    Dalarna University, School of Technology and Business Studies, Microdata Analysis.
    A data-driven decision support system for coherency of experts’ judgment in complex classification problems: The case of food security as a UN sustainable development goal2018Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    Everyday humans need to make individual or collective decisions. Often the decisions aim at achieving multiple goals (thus involving multiple criteria) and rely on the decision maker(s)’ intuition, internal data, as well as external sources of data. Faced with a complex decision problem of this kind, it is a great challenge to decisionmakers to be logically coherent over time with regard to their preferences. To aid in achieving coherency, operation researchers and decision analysts have developed formal methods to support decision makers. One such method is the UTADIS method that serves as the workhorse for this thesis. I received the request from UN officials who had to manage the sustainable development goals while addressing the issue of food security. They wished for a decision support system (DSS) that could aid in their classification of countries to mitigate the risk of failing on food security. The virtue of the DSS should be that their expert judgment was complemented by formal methods for better risk classification. The UTADIS method was fitting for the purpose, but it lacked implementability. In particular, it required an iterative approach engaging the experts multiple times, while not readily lending itself to making use of external data, making it inefficient as a DSS. The fundamental contribution of this thesis is that I have solved these shortcomings of the UTADIS method, such that it now readily can be used in a functionally efficient way for the desired purpose of the UN. In solving these problems, it is also more broadly implementable as a DSS, as I have validated the artifact to a DSS, by use of several demonstrations and exposed it to sensitivity analysis.

  • Eriksson, Per Erik
    Dalarna University, School of Humanities and Media Studies, Moving Image Production. Mälardalens högskola, Inbyggda system.
    Videography as Design Nexus: Critical Inquires into the Affordances and Efficacies of Live-action Video Instructions2018Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    This thesis is about live-action instructional videos (LAVs). By addressing design problems with respect to the how-to video genre, the thesis asks fundamental questions about mediated instructional communication efficacies and the factors that either obstruct or augment them. 

    The analysis presented in this thesis is based on the notion that videography is a design nexus and key focal point of the connections that make live-action video instructional efforts possible. This Design Nexus is explored by defining and illuminating key ontological dimensions, medium specificities and the video users’ cognitive capacities. This is to acknowledge that the users of instructions in this thesis are center stage, both as biological and cultural beings.

    The methods used in this thesis and its associated papers are eye-tracking, video observations, questionnaires, self-reports, focus group interviews and YouTube analytics. Hence, both numerical data and non-numerical data are analyzed in this study.

    The results of the analyses indicate that pre-production planning is key in live-action video instructional endeavors, but not at the expense of the videographer’s status as designer. Moreover, the analyses show that users’ cognitive processing and visual decoding depend on the power of the live-action format to show actual human behavior and action. Other presented evidence seems to infer that LAV-instructions are a little less demanding if users apply a focused decoding style when interacting with them. Nevertheless, physiological engagement of this kind is likely not to fully compensate for users’ psychological engagement.

    This thesis contributes to a more comprehensive understanding of humans’ abilities to interpret the actions of others via medial means. By relating this to video medium-specific affordances, this thesis also furthers important efficacy distinctions and boundary conditions. This understanding is considered important for live-action video makers and designers of visual instructions as well as scholars who need to develop better methods to assess users’ behavioral engagement when they interact with digital instructional media.

  • Göransson, Isabella
    et al.
    Dalarna University, School of Technology and Business Studies, Graphic Arts Technology.
    Nilsson, Charlotta
    Dalarna University, School of Technology and Business Studies, Graphic Arts Technology.
    Etiska budskap på veganska måltidsproteinförpackningar2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The ethical consumers are growing in numbers (Young, Hwang,

    McDonald & Oates, 2010), and consuming a vegan diet is becoming

    more popular (The Nielsen Company, 2017). As the new products are

    entering the market, guidelines and research on ethical consumption for

    vegan meat substitute packages are lacking. This thesis can therefore

    help graphic designers with creating this type of packaging.

    The present study investigates whether and how different brands who

    sell vegan processed food communicate ethical statement through text,

    images, dietary name and certification on their packaging and consumers

    attitude about it. The study was conducted with a visual content analysis

    and a survey.

    The results present that majority of the respondents believe that the

    communication of ethical statement on the packaging is positive and can

    bring added value to the consumer based on the target group. The study

    also presents that brands with a product selection for omnivores, to the

    greater part only communicate personal preferences while brands with a

    product selection for vegetarians communicate both ethical aspects and

    personal preferences on its packaging.

  • Vegsund, H. -K
    et al.
    Rannestad, T.
    Reinfjell, T.
    Moksnes, U. K.
    Eilegård Wallin, Alexandra
    Dalarna University, School of Education, Health and Social Studies, Caring Science/Nursing.
    Eilertsen, M. B.
    Translation and linguistic validation of a swedish study-specific questionnaire for use among Norwegian parents who lost a child to cancer2018In: Social Sciences, ISSN 2076-0760, E-ISSN 2076-0760, Vol. 7, no 10Article in journal (Refereed)
    Abstract [en]

    Research is needed on how to help cancer-bereaved parents, as they are considered to be a vulnerable population and they are at risk of developing ill health following the loss of a child to cancer. The purpose of the present study was to translate and linguistically validate a Swedish study-specific questionnaire that was developed for Swedish cancer-bereaved parents. The translated questionnaire will be used in a nationwide study in Norway. Methods: Forward and backward translations of the Swedish study-specific questionnaire were conducted, followed by linguistic validation based on telephone interviews with six Norwegian cancer-bereaved parents. Result: It was found that several medical terms and conceptual issues were difficult for the Norwegian parents to understand. There were also four issues regarding the response alternatives. Conclusions: Although Sweden and Norway have quite similar cultures and languages, the results off this pilot study show that, to ensure the quality of a translated questionnaire, linguistic validation as well as translation is necessary.

  • Embretsen, Erik
    et al.
    Dalarna University, School of Technology and Business Studies, Construction.
    Häggström, Joel
    Dalarna University, School of Technology and Business Studies, Construction.
    Slitlager på broar: En kunskapssammanställning om slitlager på broar med fokus på slitbetong2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This report is the result of a study conducted to try to identify the most important factors affecting the choice of surface course on bridges. The study also aimed to clarify the reasons for which surface course were previously chosen and should be chosen in the future. The result of the study is that the surface course are likely to be chosen on unclear grounds without a clear motivation and unclear guidelines. It is often that private opinions have a big influence on the choice of the surface course. Economics, type of contract or aesthetics are other crucial factors in choosing of the surface course. The study has been conducted using in-depth interviews with people having knowledge in the field.

  • Grek, Åsa
    Dalarna University, School of Technology and Business Studies, Microdata Analysis.
    Nonresponse issues when analysing business survey data2018Licentiate thesis, comprehensive summary (Other academic)
    Abstract [en]

    Data issues due to nonresponse or missing data arises often in company surveys or in firm data. Missing data and nonresponse causes bias. Another problem that causes bias is omitted variables. Accordingly, it will lead to wrong conclusions. The idea behind this licentiate thesis is to address these problems. The aim is to develop an insight into how common problems can be solved by transforming the data and changing the statistical method. There is no claim that the method suggested in the papers is always optimal. Rather, the goal of the papers is to give an awareness of problems that occurs in quantitative business research.

  • Elbana, Karim
    Dalarna University, School of Technology and Business Studies, Energy Technology.
    Socio-Technical Analysis for the Off-Grid PV System at Mavuno Girls’ Secondary School in Tanzania2018Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    The aim of this study is to investigate, analyse and evaluate the installed off-grid PV system in Mavuno

    girls’ secondary school that is located in a rural area in northwest Tanzania. The original motivation behind this study was the rapid degradation of the installed battery bank within less than 3 years. The PV system was installed before the actual operation of the school, so the study aimed to answer a very pressing question which is "What is the actual load profiles in the school?". There was a high need to identify the actual school load profiles to enable several concerned social actors to evaluate the system and to decide for future extensions. Therefore, the study aimed to analyse the implementation of electricity in the school by creating actual load profiles, analysing the system performance versus the users’ needs and evaluating the sustainability and utilization of implementation.

    The study followed a multi-disciplinary approach combining the social and technical aspects of PV systems implementation

    to seek further understanding of the users’ consumption behaviours. It thus included a 1-month of field work in June 2018 during which participant observations and semi-structured interviews together with load measurements were carried out so as to create load profiles that are considering the patterns and deviations in users’ behaviours. During the field work, 2/3 of the students were in holidays so the taken measurements corresponded to the school at 30 % capacity. That is why the study also included 4 days of inverter data logging after the 1-month field work by the technical head of the school to overcome the limitations in held measurements.

    The observations showed that the actual installed system was slightly different from the documentation. In addition, the local installation practices are not fully appropriate from the technical point of view, and are affected by local social norms, as will be discussed. Besides, the participant observations and held interviews with relevant social actors showed that the daily behaviours of energy users do not exactly follow the school daily routine. Consequently, the social study was important to create actual effective load profiles. The observations and responses from interviews together with measurements were used to categorize the school loads into 29 different units. Those units can be used for current load prioritizations and for future load extrapolations. The created load profiles also represent a useful addition to load databases used by energy researchers who work on similar rural electrification projects.

    After the field work, several characteristics were calculated by Microsoft Excel such as apparent power consumptions, active power consumptions, battery bank state of charge, load power factor and PV generated energy. The characteristics were used in calculations evaluating the energy balance in the system. The results of held calculations showed that lighting during dark hours accounted for on around 78 % of the logged daily apparent energy use, as it has a low a low average power factor of 0.28. It also showed that some loads if time-bounded, they will significantly decrease the daily energy consumption. The calculations were also used to run PVSyst simulations to evaluate the system sizing which resulted in the recommendation that either the array size should be doubled, or the apparent energy consumption should be decreased to half.

    The study included suggestions for possible improvements such as decreasing the reactive consumed energy by either replacing the currently used light bulbs with ones that have higher power factor (

    ≥0.8 for example) or by installing a capacitive compensation for power factor correction. In addition, it was recommended to quantify the school loads according to their priority or importance and to regulate observed time-unbounded loads such as "pumping water" and "ironing". Lastly, the study discussed how generated electricity is utilized in the school and what opportunities for women empowerment have become potentially possible with the provision of electricity.

  • Tanguturi, Sai Kishan
    Dalarna University, School of Technology and Business Studies, Energy Technology.
    Effect on Contact Resistance dueto Cross Connection of MC4 Compatible Connector2018Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Electrical connectors are the blocks that connect solar panels together. Whenever a photovoltaic plant commences, the main discussion goes around on solar panels, inverters, charge controllers, etc. But the topic of connectors is usually hardly discussed. Connectors in a photovoltaic system can definitely contribute to improve the overall performance of the system, provided that importance is given while selecting the connectors.

    The electrical connectors used in photovoltaic systems can be connected in two possible ways. Connectors can be connected either in a pure-connection or in a cross-connection. Male and female connectors from the same brand results a pure-connection (P-C). Male and female connectors from two different brands results in a cross-connection (C-C). There have been discussions in photovoltaic, electrical connector markets and international solar events regarding the risks involved, losses and consequences due to a cross-connection. The main reason behind cross-connections is the unawareness of the installers in knowing the difference between a pure-connection and a cross-connection. Even though the installers are aware of this difference, they are not aware of the consequences of cross-connections.

    Multi-Contact, a leading electrical connector manufacturer of MC4 photovoltaic connectors affected by the counterfeit products of MC4, due to the sudden boom in the solar market during 2011-12. With the help of TÜV Rheinland, Multi-Contact conducted couple of tests namely temperature increase test and accelerated stress tests to understand the disadvantages of cross-connections. This thesis tried to replicate the tests performed by Multi-Contact in an attempt to understand the test results by using connectors that are used in the Swedish market.

    Performing temperature increase test and accelerated stress tests on most commonly used connectors in the Swedish market is the main aim of this thesis. The first test, gives an understanding of the temperature variations across various connector sets (four connector sets from various manufacturers used in this thesis) and the latter tests helps to understand the quality of the contact resistance of these connector sets. The four connector set manufacturers used in this test were Multi-Contact (MC), Weidmüller (WM), Blussun solar (BSS) and PBM. The quality of contact resistance of a connector is directly related to the quality of the connector set.

    During the 20 minutes of the temperature increase test, the connector set from WM performed better than its competitors in the P-C. Whereas, the MC-BSS connector set had performed well in the C-C. The connector type of male MC and female BSS showed its dominance throughout the test. Unfortunately, no conclusions were able to be drawn from this test results due to insufficient information about the test procedure.

    From the results of accelerated stress tests, the C-C set from MC outperformed its P-C counterpart. All ten connector sets used in this project passed the standard and qualified as connectors with good quality contact resistance. Therefore the best results out of only a P-C connector set does not seems to be completely true.

    With the standard used in this thesis, it is quite difficult to judge the quality of connectors. Rather than saying a P-C is superior and a C-C is inferior in terms of quality, there is a need to come up with a new method to evaluate the quality of connectors. Matching the connectors based on their tolerances could be a potential solution to the mismatching problem in connectors.

  • Grysell, Tomas
    Göteborgs universitet.
    Temapresentation: Den reflekterande handledaren - myt eller verklighet?2016In: Utbildning och Lärande / Education and Learning, ISSN 2001-4554, Vol. 10, no 1, p. 8-19Article in journal (Other academic)
  • Ekecrantz, Stefan
    Stockholms universitet.
    Temapresentation: Examination och bedömning för lärande?2015In: Utbildning och Lärande / Education and Learning, ISSN 2001-4554, Vol. 9, no 2, p. 8-14Article in journal (Other academic)
  • Andersson, Erik
    Högskolan i Skövde.
    Temapresentation: Deltagande och inflytande - inkluderingens demokratiska och politiska möjligheter2015In: Utbildning och Lärande / Education and Learning, ISSN 2001-4554, Vol. 8, no 1, p. 8-18Article in journal (Other academic)
  • Carlsson, Natalia
    Dalarna University, School of Humanities and Media Studies, Swedish as Second Language.
    Snapshots av ordnätet: En studie av ordassociationer, lexikal interaktion och organisation av det mentala lexikonet2018Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Under de senaste decennierna har man med hjälp av ordassociationstest studerat utveckling och organisation av människors mentala lexikon. I det multikulturella Sverige växer intresset för frågan om ordinlärning och ordorganisering hos andraspråksinlärare. Det finns ett behov av forskning i området ur ett kontrastivt perspektiv. Denna studie behandlar organisation av det mentala lexikonet hos modersmålstalare och andraspråkstalare av svenska. Syftet med studien är att utreda frågan om i vilken omfattning olika organisationstyper förekommer hos studiedeltagare och om det finns ett samband mellan ordorganisationstyper och ordfrekvens. Som instrument i studien används ett ordassociationstest som består av 30 stimulusord. Deltagarnas associationer till stimulusorden, som utgör material i studien, delas in i fyra kategorier: fonologiska associationer, syntagmatiska associationer, paradigmatiska associationer och ej klassificerbara responser.

    Studiens resultat visar att alla typer av responser förekommer i alla åldrar på olika språkfärdighetsnivåer. Det mentala lexikonet organiseras enligt olika principer men deltagare tenderar att organisera sitt mentala lexikon semantiskt. Fonologiska associationer är den minst förekommande typen av ordassociationer.

    Studiens resultat visar också att det inte finns något entydigt samband mellan stimulusordens frekvens och typer av ordassociationer. En hög ordfrekvens är ingen garanti på att ordet kommer att gå igenom alla utvecklingsstadier och organiseras uteslutande semantiskt hos alla människor. Djupet av ordkunskap pekas ut som den viktigaste faktorn av ordorganisering i människors mentala lexikon.

  • Andersén, Annelie
    Högskolan i Skövde.
    Temapresentation: Livslångt och livsvittlärande2014In: Utbildning och Lärande / Education and Learning, ISSN 2001-4554, Vol. 8, no 1, p. 8-11Article in journal (Other academic)
  • Gustavsson, Susanne
    Högskolan i Skövde.
    Temapresentation: Perspektiv på gymnasial yrkesutbildning2013In: Utbildning och Lärande / Education and Learning, ISSN 2001-4554, Vol. 7, no 1, p. 8-12Article in journal (Other academic)
  • Jakobsson, Anders
    et al.
    Malmö högskola.
    Olson, Maria
    Högskolan i Skövde; Stockholms universitet.
    Temapresentation: Ett vidgat perspektiv på ämnesdidaktik?2012In: Utbildning och Lärande / Education and Learning, ISSN 2001-4554, Vol. 6, no 2, p. 8-14Article in journal (Other academic)
  • Dimenäs, Jörgen
    Högskolan i Borås.
    Temapresentation: Utmaningar och perspektiv på verksamhetsförlagt lärande2012In: Utbildning och lärande, ISSN 1653-0594, Vol. 6, no 1, p. 8-11Article in journal (Other academic)
  • Carlén, Urban
    Högskolan i Skövde.
    Temapresentation: Att bilda lärare i digital kompetens2011In: Utbildning och lärande, ISSN 1653-0594, Vol. 5, no 1, p. 8-15Article in journal (Other academic)
  • Andersson, Peter
    Högskolan i Skövde.
    Temapresentation: Nya textvärldar i vår tid– ändrade förutsättningar för textskapande i skolan?2010In: Utbildning och lärande, ISSN 1653-0594, Vol. 4, no 1, p. 8-12Article in journal (Other academic)
  • Gustafsson, Gerd
    et al.
    Högskolan i Skövde.
    Gustavsson, SusanneHögskolan i Skövde.Tiller, TimHögskolan i Skövde.
    Utbildning & Lärande 2009:12009Collection (editor) (Refereed)
  • Dimenäs, Jörgen
    Högskolan i Skövde.
    Utbildning & Lärande 2006:1: Tema: Det här är jag, så har jag förändrats2006Collection (editor) (Refereed)
  • Orlenius, Kennert
    Högskolan i Skövde.
    Utbildning & Lärande 2005:1: Tema: Vision - förverkligande - utveckling2005Collection (editor) (Refereed)
  • Jayaram, M.A.
    et al.
    Siddaganga Institute of Technology, Tumakuru, Karnataka, India.
    Fleyeh, Hasan
    Dalarna University, School of Technology and Business Studies, Computer Engineering.
    Whither Edge Computing? – A Futuristic Review2018In: International Journal of Applied Research on Information Technology and Computing, ISSN 0975-8070, Vol. 9, no 2, p. 180-188Article in journal (Refereed)
    Abstract [en]

    It is a well-known fact that the current day Internet is increasingly becoming laden with content that is bandwidth demanding due to ever-increasing number of things getting attached on a day-in and day-out basis. Hand-in-hand, mobile networks and data networks are converging into cloud computing bandwagon. Edge computing as a promising feature has already made inroads to face future requirements and to address exponential demands from cloud. This feature is all about inserting computing power and storage in the vicinity of the network edge. It is asserted that this scheme of operation brings down the data transport time, quick response times and increased availability. Edge computing brings bandwidthintensive content and latency-sensitive applications closer to the user or data source. In this paper, we explain the drivers of edge computing and have delved on various types of edge computing currently available and going to throng in near future. This paper is intended to draw a comprehensive picture of what is happening in edge currently and what would happen in the near foreseeable future.

  • Nilsson, Jan
    et al.
    Engström, Maria
    Florin, Jan
    Dalarna University, School of Education, Health and Social Studies, Caring Science/Nursing.
    Gardulf, Ann
    Carlsson, Marianne
    A short version of the nurse professional competence scale for measuring nurses' self-reported competence2018In: Nurse Education Today, ISSN 0260-6917, E-ISSN 1532-2793, Vol. 71, p. 233-239Article in journal (Refereed)
    Abstract [en]

    BACKGROUND: The Nurse Professional Competence (NPC) Scale with 88-items has been used to measure self-reported competence among nursing students and registered nurses in many national and international nursing research projects. However, a shorter version of the scale with maintained quality has been requested to further enhance its usability.

    OBJECTIVES: To develop and evaluate the construct validity and internal consistency of a shorter version of the NPC Scale.

    DESIGN: A developmental and methodological design.

    PARTICIPANTS AND SETTINGS: The study was based on a sample of 1810 nursing students at the point of graduation from 12 universities in Sweden.

    METHODS: The number of items in the original NPC Scale was reduced using several established research steps and then evaluated for data quality and construct validity using principal component analysis and confirmatory factor analysis. Reliability was measured as internal consistency using Cronbach's alpha.

    RESULTS: The extensive process of reducing the number of items resulted in a version with 35 items. Principal component analysis resulted in six factors explaining 53.6% of the variance: "Nursing Care", "Value-based Nursing Care", "Medical and Technical Care", "Care Pedagogics", "Documentation and Administration of Nursing Care", and "Development, Leadership, and Organization of Nursing Care". All factors showed Cronbach's alpha values of >0.70. The confirmative factor analysis goodness-of-fit indexes were for root mean square error of approximation 0.05 and for comparative fit index 0.89.

    CONCLUSIONS: The NPC Scale Short Form (NPC Scale-SF) 35-items revealed promising results with a six-factor structure explaining 53.6% of the total variance. This 35-item scale can be an asset when used alone and together with other instruments it can provide the possibility of more complex analyses of self-reported competence among nursing students and registered nurses.

  • Hjorth, Maria
    et al.
    Sjöberg, Daniel
    Svanberg, Anncarin
    Dalarna University, School of Education, Health and Social Studies, Caring Science/Nursing. Uppsala universitet.
    Kaminsky, Elenor
    Langenskiöld, Sophie
    Rorsman, Fredrik
    Nurse-led clinic for patients with liver cirrhosis-effects on health-related quality of life: study protocol of a pragmatic multicentre randomised controlled trial2018In: BMJ Open, ISSN 2044-6055, E-ISSN 2044-6055, Vol. 8, no 10, article id e023064Article in journal (Refereed)
    Abstract [en]

    INTRODUCTION: Liver cirrhosis affects health-related quality of life (HRQoL) even in its early stages. Morbidity is especially high when the disease decompensates and self-care actions become essential. Nurse involvement in secondary prevention in other chronic diseases has contributed to better symptom control, less need of inpatient care and improved HRQoL. In order to evaluate the impact of nurse involvement in the follow-up of patients with liver cirrhosis, we decided to compare structured nurse-led clinics, inspired by Dorothea Orem's nursing theory and motivational strategies, with a group of patients receiving standard care. The primary outcome is HRQoL and the secondary outcomes are quality of care, visits to outpatient clinics or hospitals, disease progress and health literacy.

    METHODS AND ANALYSIS: This is a pragmatic, multicentre randomised controlled study conducted at six Swedish hepatology departments. Eligible patients are adults with diagnosed cirrhosis of the liver (n=500). Participants are randomised into either an intervention with nurse-led follow-up group or into a standard of care group. Recruitment started in November 2016 and is expected to proceed until 2020. Primary outcomes are physical and mental HRQoL measured by RAND-36 at enrolment, after 1 and 2 years.

    ETHICS AND DISSEMINATION: The study is ethically approved by the Regional Ethical Review Board in Uppsala. The results shall be disseminated in international conferences and peer-reviewed articles.

    TRIAL REGISTRATION NUMBER: NCT02957253; Pre-results.

  • Samrani, George
    et al.
    Marklund, Petter
    Engström, Lisa
    Broman, Daniel
    Dalarna University, School of Education, Health and Social Studies. Högskolan i Skövde.
    Persson, Jonas
    Behavioral facilitation and increased brain responses from a high interference working memory context.2018In: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 8, no 1, article id 15308Article in journal (Refereed)
    Abstract [en]

    Many real-life situations require flexible behavior in changing environments. Evidence suggests that anticipation of conflict or task difficulty results in behavioral and neural allocation of task-relevant resources. Here we used a high- and low-interference version of an item-recognition task to examine the neurobehavioral underpinnings of context-sensitive adjustment in working memory (WM). We hypothesized that task environments that included high-interference trials would require participants to allocate neurocognitive resources to adjust to the more demanding task context. The results of two independent behavioral experiments showed enhanced WM performance in the high-interference context, which indicated that a high-interference context improves performance on non-interference trials. A third behavioral experiment showed that when WM load was increased, this effect was no longer significant. Neuroimaging results further showed greater engagement of inferior frontal gyrus, striatum, parietal cortex, hippocampus, and midbrain in participants performing the task in the high- than in the low-interference context. This effect could arise from an active or dormant mode of anticipation that seems to engage fronto-striatal and midbrain regions to flexibly adjust resources to task demands. Our results extend the model of conflict adaptation beyond trial-to-trial adjustments by showing that a high interference context affects both behavioral and biological aspects of cognition.

  • Vattur Sundaram, Maheswaran
    et al.
    Chalmers University of Technology.
    Surreddi, Kumar Babu
    Dalarna University, School of Technology and Business Studies, Materials Technology.
    Hryha, Eduard
    Chalmers University of Technology.
    Veiga, Angela
    CEIT, Pº Manuel Lardizábal 15, 20018 San Sebastián, Spain.
    Berg, Siguard
    Höganäs AB, SE-263 83 Höganäs, Sweden.
    Castro, Francisco
    CEIT, Pº Manuel Lardizábal 15, 20018 San Sebastián, Spain.
    Nyborg, Lars
    Chalmers University of Technology.
    Full Densification in PM Steels Through Liquid Phase Sintering and HIP Approach2018In: Euro PM2018 Proceedings, 2018Conference paper (Refereed)
    Abstract [en]

    High-density powder metallurgy (PM) components are required for high-performance applications. Liquid phase sintering (LPS) is one such method to improve the densification, especially the master alloy route is preferred due to the flexibility in tailoring the alloying contents. In this study, gas atomised Ni-Mn-B master alloy powder of size fraction < 45 µm was admixed with water atomised iron and Mo-prealloyed powder. During sintering, there was a significant densification due to LPS where the liquid formation occurred in two stages, one from the master alloy melting and another from the eutectic liquid formation, enabling densities > 95%. The microstructural investigation revealed that the surface densification was achieved after sintering in H2 containing atmosphere. Capsule free hot isostatic pressing was performed on these samples to achieve full density. This approach of combining LPS and capsule free hot isostatic pressing demonstrates the potential in reaching full densification in high-performance PM steel components.

  • Berg, Daniel
    Stockholms universitet.
    Det självständiga arbetet - en plats för emancipation eller automation?2016In: Utbildning och Lärande / Education and Learning, ISSN 2001-4554, Vol. 10, no 1, p. 94-108Article in journal (Refereed)
    Abstract [sv]

    Självständighet i arbetet utgör ett högt värderat mål för alla högre utbildningar. I denna begreppsanalytiska litteraturstudie undersöks de motstridiga innebörder denna självständighet kan ges. Studien framlägger idén att begreppet ”självständighet i arbetet” kan förstås på två rent av motstridiga sätt: som automation eller som emancipation. Diskussionen om dessa två innebörder förankras dels i en historieteoretisk utläggning om det maskinella arbetetsutveckling och dels i pedagogik-filosofen Jacques Rancières tankar om demokratins förutsättningar. Begreppsanalysens diskussion appliceras därefter på ett mindre urval aktuell pedagogisk forskning om handledningen i högre utbildning. I mötet med denna litteratur väcks framförallt frågor om dialogismens pedagogiska teori vad gäller självständighet i arbetet: skapar dess metoder en emancipatorisk självständighet i Rancières definition – eller premierar de snarare det maskinella arbetets fortsatta automation av samhällslivet? Några tentativa resultat avslutar studien. Spänningen mellan emancipation och automation i självständighetsbegreppet tycks inte kunna förlösas bara genom dialogism. Men analysen av litteraturen visar samtidigt på att denna rymmer en annan väg mot emancipatorisk självständighet i den högre utbildningen, färdig att utforska: den som går genom den känslosamma läraren.

  • Lundström, Markus
    Stockholms universitet.
    Handlednings potential, examineringens låsningar - om uppsatsmomentets konflikt mellan formativ och summativ bedömning2016In: Utbildning och Lärande / Education and Learning, ISSN 2001-4554, Vol. 10, no 1, p. 88-93Article in journal (Refereed)
    Abstract [en]

    The argument raised in this article stems from the analytical distinction between summative and formative assessment. While summative assessment demarks a measurable fixation of the student’s knowledge level at a given point in time, formative assessment instead aims to propel the learning process. Formative assessment becomes particularly manifested in the educational moment of supervised essay writing. Continuous and flexible feedback is vital to the art of supervising. This practice of formative assessment is, in turn, key to the student’s possibilities for deep learning. A fruitful formula for formative assessment and deep learning is to establish a horizontal relationship between supervisor and student, what Olga Dysthe has called the partnership model. This partnership relation is, as argued in this article, endangered by the examination practice’s constant insertion of verticality into the student-teacher relationship. By limiting relational horizontality, the examination locks the pedagogical potential that is naturally embedded in the relational process of essay writing.

  • Eriksson, Anita
    et al.
    Högskolan i Borås.
    Gustavsson, Susanne
    Krav, uppmaningar och frågor - en autoetnografisk reflektion över handledning av självständiga arbeten2016In: Utbildning och Lärande / Education and Learning, ISSN 2001-4554, Vol. 10, no 1, p. 70-87Article in journal (Refereed)
    Abstract [en]

    The degree project represents an important part of higher education since it will examine the student's knowledge in relation to the degree goals and the student's ability to work independently under supervision. The supervision that is requested and given constitutes a central part of the student's working process and depending on the supervision's character it can also impact on the student's possibilities to independence. Using as a point of departure the intention to make visible and to problematize our students’ ability to be independent, the aim of the study presented here is to identify the specific features of the written supervision which we as supervisors give to students in the form of comments. The attempt is auto-ethnographic, which means that we reflect over our own way to supervise. As support for the analysis parts of Bernstein's theory have been used. The article describes and problematizes how we as supervisors have used comments in form of demands, exhortations and questions, the motives for the different kinds of comments and how different comments impact on the student's possibility to use and show his/her ability to work independently. The article contributes with knowledge about what is happening during the supervision, it can be used as foundation for discussion about supervision in relation to the student´s independence and gives an example on self-reflection over one's supervision.

  • Cajander, Åsa
    et al.
    Uppsala universitet.
    Schnaas, Ulrike
    Uppsala universitet.
    Peer reflection on inclusive supervision - a study circle as a space for collegial learning2016In: Utbildning och Lärande / Education and Learning, ISSN 2001-4554, Vol. 10, no 1, p. 54-69Article in journal (Refereed)
    Abstract [sv]

    Forskarhandledare har en viktig roll för att öka genusmedvetenheten inom akademin, särskilt bland unga forskare, och för att stödja en inkluderande och genusvänlig arbetsmiljö för doktorander. Trots detta ges det sällan utrymme för en kontinuerlig reflektion kring inkluderande forskarhandledning. I artikeln beskrivs hur kollegial reflektion kring inkluderande forskarhandledning har möjliggjorts genom en studiecirkel som har arrangerats inom ramen för det europeiska jämställdhetsprojektet FESTA (Female Empowerment in Science and Technology Academia) vid Uppsala universitet. Artikelförfattarna har deltagit i studiecirkeln i rollerna som cirkelledare och kursdeltagare, och artikeln är skriven utifrån dessa perspektiv. I artikeln presenteras studiecirkelns upplägg och pedagogiska struktur samt författarnas reflektioner utifrån deras två olika perspektiv. Både våra egna reflektioner och kursvärderingen pekar på att studiecirkeln har lämpat sig väl som arena för kollegial reflektion. Artikeln avslutas med några råd för de som vill arrangera liknande studiecirklar kring inkluderande handledning.

  • Dimitrova, Radosveta
    Stockholms universitet.
    Ingredients of good PhD supervision - evidence from a student survey at Stockholm university2016In: Utbildning och Lärande / Education and Learning, ISSN 2001-4554, Vol. 10, no 1, p. 40-52Article in journal (Refereed)
    Abstract [sv]

    Doktorandhandledning är en relevant fråga för en pedagogisk forskarutbildning vid universitet vilket har betydande implikationer inom rad sammanhang, såväl inom industrin som för grupper av arbetsgivare, studentföreningar och akademiker. Denna studie undersöker centrala aspekter av handledning utifrån doktoranders perspektiv vid Stockholms universitet baserat på en undersökning med 761 forskarstuderande. En konfirmatorisk faktoranalys genomförd med strukturell ekvationsmodellering visade sig ge stöd åt en endimensionell modell för handledning som exemplifieras av givandet av konstruktiv kritik till studenter, handledarens tillgänglighet, tillräckligt med tid för handledning, möjlighet till självständigt arbete och en kreativ miljö för forskarutbildningen. Handledningsindikatorerna var även signifikant och positivt korrelerade. Att studera dessa indikatorer spelar stor roll för riktlinjerinom utbildning och metoder för undervisning i avsikt att kunna förbättra forskarutbildningen. Studenter skulle kunna bli tydligt informerade om viktiga faktorer att överväga när de väljer samt påbörjar sina studier. Universitetsledning och handledare kan upprätthållas i sin roll att säkerställa en fullgod doktorandupplevelse för deras studenter.

  • Carlsson, Vanja
    et al.
    Göteborgs universitet.
    Svensson, Petra
    Göteborgs universitet.
    Johansson, Vicki
    Göteborgs universitet.
    Montin, Stig
    Göteborgs universitet.
    Handledare, vägledare eller kontrollant?2016In: Utbildning och Lärande / Education and Learning, ISSN 2001-4554, Vol. 10, no 1, p. 20-38Article in journal (Refereed)
    Abstract [en]

    This article will present the argument that modern performance management systems have the potential to change and negatively affect the academic supervision process and the scientific knowledge perception within postgraduate education. Empirically, the argument focuses on how one statutory management model, the so called study plane (ISP), is designed and applied at the University of Gothenburg. Theoretically, basic assumptions inherent in the control and steering logic of the ISP-model are identified, and their potential significance for knowledge-, value- and interaction formation within the supervision and dissertation process is analyzed. Our main conclusion is that the ISP-model, if applied as intended, promotes the transformation process towards organizational professionalism within the research community. The model affects trust relations, value and knowledge formation within the supervision process, and hampers experimental and creative research and findings.

  • Carlén, Urban
    Högskolan i Skövde.
    Utbildning & Lärande 2016:1: Tema: Den reflekterande handledaren - myt eller verklighet?2016Collection (editor) (Refereed)
  • Alhamwi, MHD Mouaz
    Dalarna University, School of Technology and Business Studies, Energy Technology.
    Evaluating the Economic Feasibility for utilizing PV Power Optimizers in Large-scale PV Plants for The Cases of Soiling, Mismatching, and Degradation2018Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    The solar PV modules are influenced by a variety of loss mechanisms by which the energy yield is affected. A PV system is the sum of individual PV modules which should ideally operate similarly, however, inhomogeneous soiling, mismatching, and degradation, which are the main focus in this study, lead to dissimilarities in PV modules operating behavior and thus, lead to losses which will be assessed intensively in terms of energy yield.

    The dissimilarities in PV modules are referred to the ambient conditions or the PV modules

    characteristics which result in different modules’ maximum power point (MPP) and thus, different currents generated by each PV modules which cause the mismatching. However, the weakest PV module current governs the string current, and the weakest string voltage governs the voltage.

    Power optimizers are electronic devices connected to the PV modules which adjust the voltages of the PV modules in order to obtain the same current as the weakest module and thus, extract

    the modules’ MPP. Hence, the overall performance of the PV plant is enhanced. On the other hand, the power optimizers add additional cost to the plant’s investment cost and thus, the extra energy yield achieved by utilizing the power optimizers must be sufficient to compensate the additional cost of the power optimizers. This is assessed by designing three systems, a reference system with SMA inverters, a system utilizes Tigo power optimizers and SMA inverters, and a system utilizes SolarEdge power optimizers and inverters. The study considers four different locations which are Borlänge, Madrid, Abu Dhabi, and New Delhi.

    An Excel model is created and validated to emulate the inhomogeneous soiling and to evaluate the economic feasibility of the power optimiz

    ers. The model’s inputs are obtained from PVsyst and the precipitation data is obtained from Meteoblue and SMHI database.

    The economic model is based on the relation between Levelized Cost of Electricity (LCOE) which will be used to derive the discount rate. Graphs representing the discounted payback period as a function of the feed-in tariff for different discount rates is created in order to obtain the discounted payback period.

    The amount of extra energy yielded by the Tigo and the SolarEdge systems is dependent on the soiling accumulated on the PV modules. Relative to the reference system, 6.5 % annual energy gain by the systems utilizing the power optimizers in soiling conditions, up to 2.1 % in the degradation conditions, and up to 9.7 % annual energy gain at 10 % mismatching rate. The extra energy yield is dependent on the location, however, the Tigo and the SolarEdge systems have yielded more energy than the reference system in all cases except one case when the mismatch losses is set to zero.

    The precipitation pattern is very influential, and a scare precipitation leads to a reduction in the energy yield, in this case, the Tigo and the SolarEdge systems overall performance is enhanced and the extra energy gain becomes greater.

    The Tigo system yield slightly more energy than the SolarEdge system in most cases,

    however, during the plant’s lifetime, the SolarEdge system could become more efficient than the Tigo system which is referred to the system’s sizing ratio. The degradation of the system or the soiling accumulation decreases the irradiation and thus, a slightly oversized PV array become suitable and deliver an optimal power to the inverters.

    The SolarEdge system is feasible in all scenarios in terms of LCOE and discounted payback period, although its slightly lower performance relative to the Tigo system, this is referred to its low initial cost in comparison to the other systems. The Tigo system is mostly infeasible although it yields more energy than the reference and the SolarEdge systems, this is referred

    iii

    to its relatively high initial cost. However, feed-

    in tariffs higher than 20 € cent / kWh make

    all systems payback within less than 10 years.

    The results have overall uncertainty within ± 6.5 % including PVsyst, Excel model, and the

    precipitation uncertainties. The uncertainty in the degradation and the mismatching

    calculations is limited to PVsyst uncertainty which is ± 5 %. The uncertainties in LCOE in

    the location of New Delhi, since it is the worst-case scenario, are 5.1 % and 4 % for the

    reference and the systems utilizing power optimizers, respectively.

    Consequently, accommodating the uncertainties to the benefits gained by utilizing power

    optimizers indicates that the energy gain would oscillate in the range of 6 % - 6.9 % for the

    soiling calculations, 2 % - 2.2 % for the degradation simulations, and 9.2 % - 10.2 % for the

    mismatching simulations at 10 % mismatchrate.

  • Steén Ejdeholm, Maria
    Dalarna University, School of Humanities and Media Studies, Swedish.
    Populärlitteratur i gymnasieskolan?: En litteraturstudie om populärlitteratur i gymnasieskolan2018Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Den här litteraturstudiens syfte är att undersöka populärlitteraturen och dess användning i skolan. Frågeställningarna lyder: Hur används och förstås termen populärlitteratur av forskare inriktade mot skolans undervisning? Hur resonerar dessa forskare kring populärlitteraturens användning i skolan?

    Gällande hur termen populärlitteratur används och förstås av forskare inriktade mot skolans undervisning så visar studien olika definitioner av begreppet populärlitteratur. Ett mönster påvisas med två infallsvinklar, det sociologiska som handlar om symboliskt mot ekonomiskt kapital och det textinterna spåret. Hur texten ser ut genom genren tillskrivs här störst vikt.

    Begreppet kan vara på väg att bli överflödigt i vårt samhälle där marknadstänkandet tenderar att ta över, så att också all kultur blir mer eller mindre populär.

    Studien visar att majoriteten av forskarna ser populärlitteratur som en legitim del av undervisningen. Persson (2007) har påvisat förändringen över tid: från att skolan ansett populärlitteratur som otänkbart tills idag där det vidgade textbegreppet finns med i skolans styrdokument, vilket signalerar en avkanonisering. Öhman (2015) förespråkar att skugga intrigen i populärlitteratur för att få ut så mycket som möjligt av undervisningen. Boëthius (1994) menar att populärkultur är del av undervisningen idag men denna kan vara en utmaning gällande kulturellt kapital, lärarna kan känna att de förlorar makt till eleverna som är mer välbevandrade i populärkulturen. Lindgren (2009) är positiv och förespråkar populärkultur inom skolans undervisning exempelvis genom att använda populärkulturella texter och analysera dessa. Lundqvist (1984) utmärker sig mot de andra forskarna som tas upp i detta examensarbete då hon tar en tydlig ståndpunkt mot sådant som ofta kategoriserats som populärlitteratur, något vi alltså inte ser i senare forskning.

  • Ramos Mendiola, Edward Enrique
    Dalarna University, School of Humanities and Media Studies, Spanish.
    Ventajas y desventajas del bilingüismo infantil en Suecia: Un estudio sobre la percepción de los padres de niños bilingües2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The purpose of this research paper was to investigate the perception that parents have in relation to the development of their children's bilingualism, and that in a given period of time could be considered as advantages or disadvantages. Appraisals can be corroborated when the people who experienced it apply that knowledge.

    With a qualitative methodology five parents who voluntarily agreed to be part of the research were interviewed. After having received the reports of the interviews, these were contrasted with the theory proposed by some authors who have deepened in the study of children's bilingualism, especially in Sweden.

    The responses of the parents were very varied and in some cases very similar, which led to the development of a final discussion and then a general conclusion.

  • Söderberg, Henry
    Dalarna University, School of Humanities and Media Studies, Swedish.
    Genus i svenskämnet i tryckta läromedel från Lgr 62 till Gy 11: En litteraturstudie kring kvalitativa och kvantitativa skillnader i representationen av män och kvinnor2018Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Den tryckta läseboken har länge varit viktig för svenskämnet då den är det första läromedlet som elever möter när de börjar skolan. Den tryckta läroboken har haft en avgörande roll i skolan under en längre tid. Trots att skolan idag präglas av en mängd medier har de tryckta läromedlen behållit sin roll och används ofta som en grundpelare i undervisningen. Skolverket anser att undervisningen ska präglas av ett jämställdhetsperspektiv samt kvinnors och mäns lika värde. Syftet med litteraturstudien har varit att granska läromedelsanalyser och vetenskapliga artiklar angående läromedel i svenskämnet med inriktning på ett genusperspektiv. De frågeställningar som ställdes i arbetet handlade om andelen män och kvinnor i läromedlen, stereotypiska föreställningar om kvinnor och män i läromedlen samt i vilken utsträckning läromedlen överensstämmer med jämställdhetskraven i respektive läroplan. För att besvara syfte och frågeställningar genomfördes en systematisk litteraturstudie där sökning och sammanställning gjordes utifrån bestämda kriterier. Resultatet visade att stereotyperna angående kvinnor och män diversifierades efter 1960-talet. Utifrån resultatet drogs en slutsats att samhällets normer gav stereotypiska föreställningar om könen och relationen dem emellan. De undersökta studierna kom fram till att män och kvinnor beskrivs olika i de undersökta läromedlen. Ytterligare en slutsats som drogs utifrån resultatet var att efter 1960-talet har samtliga läroplaner innehållit formuleringar om jämställdhet, det vill säga föreskrivit att skolan ska motverka stereotyper. Endast hälften av de undersökta läromedlen möter jämställdhetskraven i läroplanerna. Majoriteten av de undersökta studierna kom fram till att ett manligt perspektiv dominerar i läromedlen. Förändringarna i läromedlen visar att samhället är konstant föränderligt och vad som anses vara viktigt i skolan ändras utefter det. Läromedlen förändras emellertid inte alltid i samma takt som styrdokumentens skrivningar och kan än idag reflektera en tämligen stark ojämlikhet mellan könen. Min slutsats är att det inte går att garantera att skolans jämställdhetsmål uppfylls så länge den enskilda läraren ensam får besluta vilka läromedel som ska användas eller inte användas i undervisningen; här skulle ett större mått av granskning eller styrning behövas.

  • Gerardi, Marcelin
    et al.
    Dalarna University, School of Technology and Business Studies, Energy Technology.
    Namsrai, Miki
    Dalarna University, School of Technology and Business Studies, Energy Technology.
    A software system for variables comparison of a paper machine for improved performance2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Today paper is to find everywhere, and the production factories always need to increase the

    productivity if they want to stay competitive. Stora Enso Kvarnsveden has one of the biggest

    magazine paper machines in the world, which produces around 1900 meters of paper per

    minute. The production process is highly automatized, which reduces the number of operators

    that work on the machine. Still, process variations can cause brakes in the paper web and lead

    to loss of income, energy and paper production. It may also have a direct impact on the paper

    quality. This report is focusing the following question:

    How to keep the Paper Machine production process under controlled conditions?

    To make a data analysis fully relevant, we need to use the most important variables of the

    machine. By analyzing these data some unexpected behavior and variation of process values

    can be pointed out. The analyzing tool needs to be fast and portable, and therefore a software

    system has been developed. By comparing process data with reference data this software can

    make a powerful analysis.

    The created software is intended to be used either by operators or engineers. The most

    important results are collected in a file. In this text file, the comparison function gives the

    results which are stored in a CSV-format. Furthermore, an auto-update function allows the

    users to run it automatically. Graphical presentations are supporting the interpretation of the

    results.