Publikationer från Högskolan i Jönköping
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Digital Time, Analogue Mind : The Impact of Time Display Methods on User Experience in Time-Limited Digital Environments
No full textThis study investigates how different timer visualisations affect user experience in time-limited digital environments (TLDEs), focusing on digital examination platforms. Through a mixed-methods approach with 12 university students, three conditions were examined: digital timer, analogue timer, and no timer. The findings reveal that the digital timer enhanced performance awareness but created moderate stress; the analogue timer caused significant time distortion effects, and no timer resulted in lower stress but higher uncertainty about remaining time. Participants across all conditions expressed preference for hybrid timer designs combining visual elements with numerical indicators, challenging traditional digital-analogue dichotomies. These insights contribute to understanding how interface elements influence subjective time perception and offer practical guidance for designing timer visualisations that balance time awareness with minimal cognitive disruption ineducational contexts and beyond
Promoting Digital Ethics Literacy in Primary Education : An Ethnographic Study with Fourth Grade Students
No full textStudents are exposed to technology at an early age, yet the rapid expansion of digitalisation outpaces the development of policies and frameworks to guide their interactions with it. Despite its relevance, digital ethics literacy remains largely unexplored, creating risks and challenges for younger children who often lack awareness of responsible and safe digital practices. This study aims to promote digital ethics literacy by implementing and analysing three lessons, carried out by the school counselling, in two fourth grade classes at a German primary school. It seeks to investigate the extent of awareness among fourth grade students regarding the risks of digital practices, to explore how participative, dialogical, problem-posing, critical and context-based learning approaches can improve students' understanding of digital ethics, and to identify strategies that primary schools can implement to foster ethical digital engagement. To do so, this research adopts a child-centred approach, conducting an ethnographic study involving thirty-three students. The research combined participant observation, informal inquiries, field notes and a student lesson evaluation designed to analyse the learning experience from the children's perspective. The collected data were analysed to describe and interpret students' interactions and discussions in the classroom, to evaluate their engagement with digital environments and the impact of the applied teaching methods, as well as to make suggestions on how to promote digital ethics in primary schools. The results indicate a high level of digital engagement among students but a limited awareness of risks, such as communicating with strangers, sharing personal information and access to manipulative or inappropriate content, including hate speech. Digital practices were often associated with negative emotions and conflicts. Nevertheless, students – particularly those receiving parental guidance — were able to propose solutions to mitigate challenges. The applied learning approach to digital ethics literacy fostered active participation, which contributed to high levels of engagement
Investigation of the precision and accuracy of RVDT interfaces for flight control applications
No full textRotary Variable Differential Transformers (RVDT) is a form of sensor used for measuring the angular displacement of moving objects. Because of its robustness and simple design, the RVDT is popular to use in the aviation industry for flight control systems. This thesis investigated the precision and accuracy of an analog signal conditioning circuitry for RVDTs. The study evaluated two AC/DC converter designs based on full-wave rectifiers implemented with operational (OP) amplifiers. Measurements were conducted using a simulated RVDT across an angular range of -40º to +40º, and under the temperature conditions from -25ºC to +85ºC. Results showed that the second AC/DC Converter design achieved the highest accuracy with angular errors within ±0.07º, fulfilling the desired requirements. The study concludes that OP amplifier-based full-wave rectifier solutions can be constructed with high accuracy for avionic applications.
DECISION SUPPORT FOR FLOOR SYSTEM SELECTION IN THE DESIGN PHASE : A COMPARISON OF THE CLIMATE IMPACT OF DIFFERENT FLOOR SYSTEMS
No full textIntroduction – In 2022, the building and property sector accounted for slightly more than a fifth of the total greenhouse gas emissions in Sweden. Within the sector, it is shown that the production of building materials is responsible for 80-85 % of the climate impact during the construction stage for a new production. Due to this, it is of great importance that materials in the design stage are chosen with consideration for their climate impact. The choice of material becomes essential för building components such as floor slabs as they make up a large proportion of the total built area. The aim of the study is to provide a basis to ease the choice of floor slabs in the design stage, with a focus on climate impact and cross section height. Method – The conditions for the study is that six different types of floor slabs are examined, all of which have the same requirements in terms of load-bearing capacity, sound and fire. The floor slab types that are examined include a ribbed slab, a flat slab, a hybrid slab with glulam beams, a hybrid slab with CLT panel, a hollow-core slab and a hollow-core slab with climate improved concrete. The floor slabs are examined for use in schools, offices and hospitals as well as for the spans 6-12 meters. The study is a quantitative study where two data collection methods are used, which are calculations and document analysis, to answer the research questions. Results – The result for the study consists of climate impact and cross-sectional heights for the floor slabs. The empirical data is gathered in tables and charts to clearly show the differences in climate impact and cross-sectional height for the different floor slabs. Analysis – The analysis of the empirical data shows that climate impact varies depending on the composition of the load-bearing structure. Floor slabs with a load-bearing structure consisting solely of timber products have a lower climate impact compared to hybrid and concrete floor slabs. By comparing the climate impacts, it is shown that the hybrid floor slab with CLT panel and the hollow core floor slab had the highest emissions. The analysis shows that for cross section heights the ribbed floor slab, the hybrid floor slab with glulam beams and the hollow core floor slab had the lowest height for spans 6-7 meters. For the spans of 10-12 meters, the hollow-core floor slab still had the lowest cross-sectional height. Discussion – A comparison could not be made between all floor slabs for all spans. The reason being that the floor slabs sometimes did not meet the design requirements or that some manufacturers couldn’t supply enough technical information for the floor slabs regarding dimensions and climate data. Regarding the differences between concrete and timber floor slabs, the results are consistent with previous studies. However, the results for the hybrid floor slabs differ from previous studies. The results showed that one of the hybrid floor slabs was the floor slab with the highest climate impact, whereas previous studies have indicated that hybrid floor slabs have a lower climate impact than concrete floor slabs. A reason for the difference in results could be that in previous studies biogenic carbon is included in the calculations, whereas in this study they are excluded.Introduktion – År 2022 stod bygg- och fastighetssektorn för strax över en femtedel av de totala utsläppen av växthusgaser i Sverige. Inom sektorn visar det sig att tillverkningen av byggmaterial står för 80–85 % av klimatpåverkan under byggskedet för en nyproduktion. På grund av detta är det av stor vikt att material i projekteringsskedet väljs med hänsyn till klimatpåverkan. Valet av material blir väsentligt för byggnadsdelar så som bjälklag då de utgör en stor del av den totala byggda ytan. Målet med studien är att framställa underlag för att underlätta bjälklagsvalet i projekteringsskedet med fokus på klimatpåverkan och tvärsnittshöjd. Metod – Förutsättningar för studien är att sex olika bjälklagstyper undersöks där samtliga bjälklag har samma krav vad gäller bärförmåga, ljud och brand. De bjälklagstyper som undersöks är ribb-bjälklag, plattbjälklag, hybridbjälklag med limträbalkar, hybridbjälklag med KL-träplatta, håldäcksbjälklag samt ett håldäcksbjälklag med klimatförbättrad betong. Bjälklagen undersöks för verksamheterna skola, kontor och sjukhus samt spännvidderna 6–12 meter. Studien som utförs är en kvantitativ studie där två insamlingstekniker, vilka är beräkningar och dokumentstudie, används för att besvara frågeställningarna. Resultat – Resultatet för studien består av klimatpåverkan och tvärsnitthöjder för bjälklagstyperna. Empirin samsammanställs i tabeller och diagram för att tydligt visa skillnaderna i klimatpåverkan och tvärsnitthöjder för de olika bjälklagen. Analys – Vid analys av empirin visas att klimatpåverkan skiljer sig åt beroende på vad bärverket består av. Bjälklagen med bärverket endast bestående av träprodukter har lägre klimatpåverkan i jämförelse med hybrid- och betongbjälklag. Vid jämförelse av klimatpåverkan visas att hybridbjälklaget med KL-träplatta och håldäcksbjälklaget har högst utsläpp. För tvärsnitthöjder redovisar analysen att ribb-bjälklaget, hybridbjälklaget med limträbalkar och håldäcksbjälklaget har lägst höjd vid spännvidderna 6–7 meter. För spännvidderna 10–12 meter har håldäcksbjälklaget fortfarande lägst tvärsnitthöjd. Diskussion – En jämförelse kunde inte ske mellan alla bjälklagen vid alla spännvidderna. Anledningen var att bjälklagen ibland inte uppnådde dimensioneringskraven eller vissa tillverkare kunde inte erhålla tillräcklig teknisk information om bjälklagen gällande dimensioner och klimatdata. Gällande skillnaden mellan betong- och träbjälklag är resultaten i enlighet med tidigare studier. Däremot skiljer sig resultatet från tidigare studier för hybridbjälklagen. Resultaten visade på att ett av hybridbjälkagen var den bjälklagstyp med störst klimatpåverkan, tidigare studier visar på att hybridbjälklag har en lägre klimatpåverkan än betongbjälklag. En anledning till denna skillnad i resultatet kan vara att i tidigare studier har biogen koldioxid inräknat men i denna studie har det exkluderats
Opportunities and obstacles for reuse of structural timber
No full textByggsektorn står för en betydande del av Sveriges totala avfallsmängd och koldioxidutsläpp. Med utgångspunkt från regeringens mål om att 70 viktprocent av icke farligt rivningsmaterial ska återanvändas eller återvinnas senast år 2025 vilket ännu inte har uppnåtts vid år 2022. Denna studie syftar till att undersöka vilka möjligheter och hinder som finns för återbruk av konstruktionsvirke inom byggbranschen, samt vilka åtgärder som krävs för att öka dess användning i praktiken. För att besvara studiens frågeställningar har en kvalitativ metod använts. Arbetet bygger på två huvudsakliga källor till empiri: en dokumentstudie av relevanta regelverk och en serie semistrukturerade intervjuer med fyra branschaktörer. Dokumentstudien omfattar bland annat Miljöbalken (1998:808), Avfallsförordningen (2020:614), Mervärdesskattelagen (2023:200), Boverkets byggregler (BFS 2011:6 med ändring till och med BFS 2024:5), samt Eurokod 5 (SS-EN 1995-1-1:2024) som reglerar dimensionering av träkonstruktioner. Intervjuerna genomfördes med representanter från en återbrukshubb, en konstruktör, en avfallsaktör och en entreprenör. Det insamlade materialet analyserades tematiskt för att identifiera återkommande mönster i respondenternas uppfattningar kring återbruk av konstruktionsvirke. Resultatet visar att det finns ett tydligt engagemang för återbruk inom branschen, men att återbruk av konstruktionsvirke i dagsläget främst sker i begränsad omfattning och ofta beroende av enskilda initiativtagare. De största hindren som identifierats rör logistik, lagringsmöjligheter, osäkerhet kring materialets kvalitet och bristande märkning, särskilt när virket ska användas i bärande konstruktioner. Regelverken uppfattas som otydliga, och det saknas både tekniska riktlinjer och enhetliga standarder som underlättar användningen av återbrukat konstruktionsvirke. Även ekonomiska faktorer spelar en avgörande roll, då det ofta är billigare för aktörer att lämna virke på återvinning än att sortera, lagra och återbruka det. Empirin tyder på att det juridiska ramverket inte uttryckligen hindrar återbruk, men att avsaknaden av tydliga riktlinjer, ansvarsgränser och klassificeringssystem skapar osäkerhet som i praktiken försvårar användningen av återbrukat konstruktionsvirke särskilt i bärande konstruktioner. Resultatet visar också att projekteringens tidiga skede är avgörande för att återbruk ska kunna integreras i byggprocessen, vilket ställer krav på att arkitekter, konstruktörer och beställare har tillgång till både information och material redan i planeringsfasen. Flera respondenter efterfrågar gemensamma branschstandarder, logistiklösningar och tydligare ekonomiska incitament. Återbruk framstår därmed som en lösning som är både önskvärd och möjlig, men som kräver samordning och struktur för att bli genomförbar i större skala.The construction sector accounts for a significant portion of Sweden’s total waste volume and carbon dioxide emissions. Based on the government’s goal that 70 percent by weight of non-hazardous demolition waste should be reused or recycled by the year 2025, which has not yet been achieved as of the year 2022. This study aims to investigate the opportunities and obstacles for the reuse of structural timber within the construction industry, as well as the measures needed to increase its practical implementation. To answer the study’s research questions, a qualitative method was applied. The empirical foundation consists of two primary sources: a document study of relevant regulations and a series of semi-structured interviews with four industry stakeholders. The document study includes, among others, the Swedish Environmental Code (1998:808), the Environmental Ordinance (2020:614), the Swedish Value Added Tax Act (2023:200), the Swedish Building Regulations (BBR; BFS 2011:6 with amendments up to BFS 2024:5), and Eurocode 5 (SS-EN 1995-1-1:2024), which governs the design of timber structures. The interviews were conducted with representatives from a reuse hub, a structural engineer, a waste management operator, and a contractor. The collected material was analyzed thematically to identify recurring patterns in the respondents’ views on the reuse of structural timber. The results show a clear commitment to reuse within the industry but also reveal that the reuse of structural timber currently takes place only to a limited extent and often depends on individual initiatives. The main identified barriers relate to logistics, storage capacity, uncertainty regarding material quality, and lack of labelling particularly when the timber is intended for load-bearing structures. The regulatory framework is perceived as unclear, and there is a lack of both technical guidelines and uniform standards that would facilitate the use of reused structural timber. Economic factors also play a critical role, as it is often more cost-effective for actors to send timber for energy recovery than to sort, store, and reuse it. The empirical findings suggest that the legal framework does not explicitly prohibit reuse, but that the absence of clear guidelines, definitions of responsibility, and classification systems creates uncertainty, which in practice complicates the use of reused timber especially in structural applications. The results also indicate that the early design phase is crucial for integrating reuse into the construction process, requiring that architects, engineers, and clients have access to relevant information and materials already during project planning. Several respondents call for common industry standards, logistical solutions, and stronger economic incentives. Reuse thus emerges as a solution that is both desirable and feasible, but one that requires coordination and structured implementation to become viable on a larger scale
The Impact of “SEAT” on the implementation of Circular Business Practices : A single-case qualitative study on the enablers and barriers arising from Standardised Environmental Assessment Tools in an empirical setting during implementation of Circular Business Practices
No full textAbstract Background: Due to the Sustainable Development Goals (SDG) agenda, many companies are trying to improve the sustainability performance by implementing innovative practices while maintaining the economic profit margin. At the same time, many companies are implementing Standardised Environmental Assessment Tools (SEAT) to comply with current and future regulations but without a clear purpose on the application or impact of these methodologies. Currently, researchers are proving the value of SEAT and they are studying the benefits of the implementation of circular business practices on firms’ sustainability. Despite this, a gap in the literature was identified in the correlation or impact of these SEAT on the implementation of circular business practices to improve sustainability. Purpose: This research aims to study how SEAT processes serve as enablers or barriers to implement circular business practices, and how to guide the processes and supply chain of a company to address the key challenges taking advantage of the identified enablers to improve sustainability. Through a case study, this research will analyse the impact of these standardised environmental tools and address how they can be effectively integrated into the supply chain management to enable circular business model strategies for modular electronic products. Method: This research is structured as a qualitative case study using a grounded theory approach based on interviews and archival data. The selected company for the case study is a Swedish firm, recognized as one of the leading companies in the Nordic market for Electric Vehicle (EV) charging solutions, with a growing focus on modular and sustainable design solutions. The data collection process started with the analysis of the internal reports and SEAT as archival data, and semi-structured open-ended interviews to some key members, allowing us to contact the main suppliers to understand and analyse the supply chain. Conclusions: This study reveals that SEAT, such as Life Cycle Assessment (LCA) and Environmental Product Declarations (EPD), can act as both enablers and constraints in the adoption of circular business practices. While they strengthen transparency, trust, and regulatory alignment, their impact depends heavily on internal capabilities and supplier engagement. By framing SEAT within the theories of Dynamic Capabilities and External Enablers, this research offers a practical framework for integrating these tools into sustainable product and supply chain strategies to maximize the benefits of its implementation. The findings provide actionable insights for firms seeking to use SEAT as catalysts for circular transformation in modular electronics.
"Cat and Mouse Game" : A Qualitative Study on How Netflix's The Helicopter Heist (2024) Represents Crime and Policing
No full textThe aim of this study is to examine how criminals and the police are represented in the Netflix series The Helicopter Heist (2024), with a particular focus on how visual signs and narrative choices construct meaning. The analysis explores how these representations maintain or challenge cultural myths and stereotypes about heroes, villains and power in a Swedish media context. The study is guided by the following research questions: How are the group of robbers and the police represented in the series? What cultural myths are conveyed through these representations? How does the series maintain or challenge stereotypical notions about crime and justice? The study employes a semiotic analysis based on Ronald Barthes´ (1972) model of denotation, connotation and myth. Across the series, a consistent representational structure emerges in the portrayal of both the robbers and the police. The robbers are depicted as emotional complex, vulnerable, and embedded in relationships with family and friends. In contrast, the police are largely portrayed as homogenous and anonymous, with exception of the main police character, Leonie, who is granted a more nuanced and emotionally complex characterization. An overarching myth is constructed in which the robbers are represented as rational, professional working figures, while the police are depicted as an inefficient institution. This dynamic is shaped by shifting power relations, where control continuously moves between the characters across episodes and individual scenes. The Helicopter Heist (2024) both reinforces and challenges stereotypes about criminals and police through the narrative. For instance, the robbers maintain visual stereotypes with the usage of weapons and masks, while empathic representation is challenging stereotypes from the general news media. While the police often shift between two stereotypical representations, the heroic and reliable police and the repressive, incompetent police, which are both shown in the series, depending on the narrative purpose. In conclusion, the theoretical framework combined with established previous research, the analysis shows that the series produces a complex representation of each part. They maintain and challenge both fictional and real stereotypes, about both genre conventions and representations, the cultural myths identified by the authors has a counter myth depending on the narrative
Everyone Dates Everyone – But on Whose Terms? : Uncovering the Narrative Construction of Gender in Alla dejtar alla
No full textSyftet med denna studie var att undersöka genren reality-tv:s narrativa genuskonstruktion i ett icke-heterosexuellt fall, med särskild inriktning på hur både genus representeras och genus enligt genuskontraktet upprätthålls och/eller utmanas. Genren reality-tv har tidigare representerat queera personer i enlighet med heteronormativa strukturer, samtidigt som forskare förklarar att populärkulturen är en arena där positiva queer-representationer har möjlighet att utvecklas. Utifrån representationsteorin, genusteorin och queerteorin genomfördes en kvalitativ narrativ textanalys av relationer mellan personer i 18 dejter ur programmet Alla dejtar alla. Resultatet visade att berättelserna i programmet representerade genus övervägande som motsatspar men genus förekom även självständigt. Genus enligt genuskontraktet upprätthölls i berättelserna då personer intog en maskulin och en feminin position i relationer. Genus enligt genuskontrakt utmanades då personer i berättelserna intog positioner i genuskontraktet vilka frångick genusförväntningarna för personernas biologiska kön. Resultatet visade att det icke-heterosexuella programmet konstruktion av genus skedde i likhet med den i heterosexuella program, vilket talar för att genren reality-tv är välförankrad i den patriarkala verklighetsuppfattningen.The aim of this study was to examine the genre reality television’s narrative gender construction in a non-heterosexual case, with particular attention to how gender is represented and whether as well as how gender according to the gender contract is maintained and/or challenged. Reality television has previously represented queer individuals in accordance with heteronormative structures, while researchers have simultaneously argued that popular culture may function as an arena in which positive queer representations can develop. Based on representation theory, gender theory, and queer theory a qualitative, narrative content analysis was conducted of relationships between people depicted in 18 dates from the program Alla dejtar alla. The results showed that gender in the program’s narrative was predominantly represented through binary oppositions, although instances of gender as self-standing also occurred. Gender according to the gender contract was maintained through individuals occupying masculine and feminine positions within relationships. The gender according to the contract was challenged by individuals assuming gender positions that deviate from the gender expectations associated with their biological sex. The results show that the non-heterosexual program constructed gender in similar ways as in heterosexual reality television, suggesting that the genre is deeply embedded in the patriarchal understanding of reality
Shaping Tomorrow: The Younger Generation’s Role in Embedding Sustainability in Family Firms
No full textBackground:Family businesses, with their legacy-driven values and long-term outlook, are well placed to advance sustainability but often struggle to balance tradition with innovation. Younger generations bring new perspectives and alignment with global sustainability goals, positioning them as key drivers of change. It is still unclear how they put sustainability into practice while working across generations. This thesis responds to this gap by examining how younger generations influence the implementation of sustainability within a Norwegian family-owned shipping company. Purpose:This study examines how next-generation members leverage evolving SEW priorities to embed sustainability into strategy and operations, while navigating intergenerational tensions and succession challenges. By doing so, it highlights the balance between legacy preservation and sustainability innovation, offering insights into the real opportunities and obstacles shaping family firms’ contributions to long-term sustainability. Method:This study uses a qualitative, exploratory case study design to investigate how younger generations contribute to sustainability in a Norwegian family-owned shipping company. Guided by a relativist ontology and social constructionist epistemology, the research adopts an abductive approach, allowing movement between emerging insights and existing concepts. Data were collected through semi-structured interviews, informal observations, and company sustainability reports. Analysis followed the Gioia methodology, progressing from first-order codes in participants’ own words to higher-level themes and dimensions. Research quality was ensured through triangulation, member validation, and an audit trail, enhancing credibility, transparency, and transferability of the findings. Conclusion:This study shows how younger generations in family firms drive sustainability by combining pragmatic reasoning with value-based commitments, using pathways such as collaboration, compliance, and innovation. The findings extend socioemotional wealth theory by demonstrating how legacy is reinterpreted as both continuity and transformation. While limited to a single case, the study highlights the practical importance of intergenerational dialogue, institutional support, and external partnerships for embedding sustainability in family firms
Att bygga upp prototyptillverkning för högprecisionsprodukter i låg volym
No full textPrototype production plays a critical role in product development by enabling early testing, iteration, and design validation before full scale manufacturing. This study investigates the challenges of establishing a functional prototype production system in a high precision, low volume (HPLV) industrial context. Here the demands for quality, flexibility and short lead times intersect. A qualitative case study was conducted at an engineering company with complex production requirements, combining semi structured interviews with employees across departments, document study of internal routines and direct production floor observations. The findings reveal that prototype production is currently managed informally, often integrated into serial production without clear processes or ownership, leading to delays and inefficiencies. To address this, the study proposes a production setup based on a one-off process model, this is suitable to enable flexibility, iteration and customization that is typical when prototyping. Additionally, separating prototype types based on precision and validation needs support both speed and quality. These insights provide practical guidelines for companies aiming to balance structure and agility in HPLV prototype production environments.