| 1. |
- Adamkiewicz, Krzysztof, et al.
(author)
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Screenless Interactive Tabletop Gaming with Capacitive Surface Sensing
- 2024
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In: Conference on Human Factors in Computing Systems - Proceedings.
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Conference paper (peer-reviewed)abstract
- Many interactive systems that support tabletop games either augment the experience with additional elements or transform game components into digital counterparts, e.g., using mixed reality. However, as many users prefer tangible game elements, digital augmentations can disrupt the immersion they seek to enhance, often due to the complexity of the hardware used. Responding to this challenge, we designed a screenless interactive tabletop system with capacitive sensing. The system is suitable for novice players and provides automatic score-keeping. Our method eliminates the need for external sensors and retains all original game pieces intact. We evaluated our system in a study with a forest planting game (n = 20). Gameplay with our system exhibited shorter turn duration, and participants adopted more effective strategies than in traditional gameplay. These results underscore the potential of screenless interactive tabletops to amplify the gaming experience without causing distractions.
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| 2. |
- Beusch, Peter, 1967
(author)
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Contradicting Management Control Ideologies – A study of integration processes following cross-border acquisitions of large multinationals
- 2007
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Doctoral thesis (other academic/artistic)abstract
- The 1990s and early 2000s witnessed some of the largest cross-border acquisitions in business history. This thesis studies how key management control actors experienced the integration processes following two cross-border acquisitions. The overall purpose is to study a particular management control model following an acquisition of two foreign multinationals and following an acquisition by a foreign multinational. A subset of three research questions is developed for these purposes: 1) to examine the actors’ experiences regarding possible contradictions and their consequences; 2) to unravel actors’ responses to conformity pressures; and 3) to illustrate the major elements and forces that thwart or enable integration. The large size of the organizations, the two-fold direction of the acquisitions, the assumed significant cultural differences, and the length of the examined process (over six years in Case 1 and seven years in Case 2) contribute to new findings. The study is based on a pragmatic (re-) constructivist research approach where key actors’ narratives and their sense-making are the core elements. The fieldwork is based on 22 interviews with key actors in Case 1 and 28 interviews in Case 2. The findings from the study illustrate that management control problems are behavioral problems that are most obvious in cross-cultural settings when organizations are growing through acquisitions. Management control is described by actors as models that consist of a collection of ideas, assumptions and frameworks rather than as physical elements. As a result, the work following such acquisitions is often something other than real integration. Rational integration frameworks then rarely help; nor can integration be forced upon the acquired entity by means of coercive power. Real legitimacy is needed in order to achieve most changes. The primary factors that makes the difference are the power of the rhetoric used to support the management control models and the skill of the finance actors (advocates) who wish to persuade and convince other actors (guardians) of the strengths and advantages of a given model. Hence, an acquirer’s management control model and its advocates cannot defeat an acquired entity’s model and its guardians if the acquirer’s model and its rhetorical/persuasive powers are weaker. Moreover, management control knowledge in organizations is often tacit knowledge. Therefore, as long as actors do not recognize the same management control models and do not apply the same worldview and logic, all tacit knowledge has to be made clear and ‘visible’ before it can be communicated to new members of the new entity. Otherwise, new members will not understand the new model and will not accept it. Interpretation and translation of management control models are therefore major drivers in creating a common management control language of clarified images and shared meaning and understanding. This in turn requires direct contact between actor groups: direct interaction and direct communication. Management control is not a ‘technical rational’ area where there is universal agreement on its benefits. Additionally, the conflicts resulting from two competing management control models can probably never be totally resolved in a rational way because the resulting problems and situations, following cross-border acquisitions, are often complex and interwoven. From a purely financial perspective, it is difficult to weigh the pros and cons involved with making management control system changes. Therefore, in most cases, the subjective judgments and common sense of actors are crucial in this process of deciding if, how, and why one choice is better than another. The actors’ socio-economic ‘inherent’ logic and their personal and company values must play a major role during such post-acquisition work. The conclusion of this study is that the best solution to resolving the conflicts between competing management control models is to make gradual changes, using negotiation strategies and applying strong rhetorical/persuasive methods in an environment that recognizes the importance of the participation of the actors involved.
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| 3. |
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| 4. |
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Ta saken i egna händer
- 2019
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Artistic workabstract
- Att ta saken i egna händer Curator Christina Zetterlund, med Annika Elmqvist och Benedetta Crippa.Denna utställning tar sin utgångspunkt i det stora projektet I Glasriket – människan, miljön, framtiden som ägde rum mellan åren 1978– 83. Initiativet till projektet togs av ABF i Lessebo och Nybro tillsammans med Svenska Fabriksarbetareförbundets avdelningar 2, 44 och 122. Syftet var att ta saken i egna händer och själva berätta sin historia. Med inspiration från Gunnar Silléns bok Stiga vi mot ljuset (1977) och senare i projektet också Sven Lindqvists Gräv där du står (1978) organiserades drygt 30 studiecirklar för att samla berättelser om arbetet och livet i de många småländska glasbruksorterna. Resultatet blev en brokig historia om yrkeslivet och fritiden, det förmedlades genom 21 innehållsrika böcker, flera utställningar och en bussturné som arrangerades med Riksutställningar. Redogörelserna inbegriper skildringar om allt från berättelser om arbetsvillkor och livet kring bruket, om en självorganisering av arbete, politik, fritid och samhälle till kvinnornas ställning i de mansdominerade bruksorterna. Vi påminns också om de långa och många kamper för rättigheter och att organisera gemenskaper på egna villkor.Illustration är denna utställnings bärande medium. Ett val som kommer från studiecirklarna där illustrationen blev ett verktyg för att minnas. De 21 böckerna är rikligt illustrerade med cirkeldeltagarnas egna teckningar. På utställningens vänstra vägg har illustratören Annika Elmqvist tolkat foton från böckerna i form av glasmålningar. Hon har format en hyllning till dem som skrev historia, till dem som, trots hårda omständigheter, gick ihop, organiserade sig, bildade föreningar, byggde egna samlingslokaler, studerade och roade sig.
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| 5. |
- Tveter Deilkas, Ellen, et al.
(author)
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Exploring similarities and differences in hospital adverse event rates between Norway and Sweden using Global Trigger Tool
- 2017
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In: BMJ Open. - : BMJ PUBLISHING GROUP. - 2044-6055. ; 7
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Journal article (peer-reviewed)abstract
- Objectives: In this paper, we explore similarities and differences in hospital adverse event (AE) rates between Norway and Sweden by reviewing medical records with the Global Trigger Tool (GTT). Design: All acute care hospitals in both countries performed medical record reviews, except one in Norway. Records were randomly selected from all eligible admissions in 2013. Eligible admissions were patients 18 years of age or older, undergoing care with an in-hospital stay of at least 24 hours, excluding psychiatric and care and rehabilitation. Reviews were done according to GTT methodology. Setting: Similar contexts for healthcare and similar socioeconomic and demographic characteristics have inspired the Nordic countries to exchange experiences from measuring and monitoring quality and patient safety in healthcare. The co-operation has promoted the use of GTT to monitor national and local rates of AEs in hospital care. Participants: 10 986 medical records were reviewed in Norway and 19 141 medical records in Sweden. Results: No significant difference between overall AE rates was found between the two countries. The rate was 13.0% (95% CI 11.7% to 14.3%) in Norway and 14.4% ( 95% CI 12.6% to 16.3%) in Sweden. There were significantly higher AE rates of surgical complications in Norwegian hospitals compared with Swedish hospitals. Swedish hospitals had significantly higher rates of pressure ulcers, falls and other AEs. Among more severe AEs, Norwegian hospitals had significantly higher rates of surgical complications than Swedish hospitals. Swedish hospitals had significantly higher rates of postpartum AEs. Conclusions: The level of patient safety in acute care hospitals, as assessed by GTT, was essentially the same in both countries. The differences between the countries in the rates of several types of AEs provide new incentives for Norwegian and Swedish governing bodies to address patient safety issues.
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| 6. |
- Alvarez, Manuel, 1980-
(author)
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Distribution Network Planning Considering Capacity Mechanisms and Flexibility
- 2019
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Doctoral thesis (other academic/artistic)abstract
- The increasing penetration of distributed energy resources (DERs) has posed challenges to the distribution system operator (DSO) from the operation and regulatory point of view. High penetration of DERs could have negative impacts on the performance of the distribution grid, and depending on the regulatory framework, the DSO's remuneration as well. In liberalized electrical systems, the focus on promoting eciency has led to the implementation of an incentive-based regulation that exerts additional pressure on the DSOs to reduce costs. Additionally, the European Parliament Directive 2009/72/EC establishes a regulatory unbundling among the distribution, production, and retailing activities within the same vertically integrated electric utility.A way of helping the DSO to cope with the posed challenges is by providing it with exibility. This exibility can be acquired from the planning stage, and later be used during the system operation. This exibility can stem from the DSO's ability to exert control on the demand and the supply side to balance the system and correct its operational state.Based on the European DSOs' current situation at facing the increasing penetration of DERs, this thesis investigates in non-wired exible grid tools to solve the distribution network expansion problem. The investigation focuses on exibility providers, in particular on energy storage systems and hydropower, and also on capacity mechanisms to translate the capacity from DERs into the grid's capacity for planning purposes.Given that the share of renewable sources among the DERs is increasing, and considering the importance of energy storage systems in providing exibility to balance renewable energy production, the eort has been turned on to developing a hydropower model and a generic storage model that t both planning and operational studies.Given the need for gearing the DERs' behavior into the DSO's decision making process during the planning and operational timescales, the design and implementation of a distribution capacity mechanism have been developed. The design of the capacity mechanism has been conceived considering its integration within the distribution network expansion problem.The outcomes of this thesis can be synthesized as follows: 1) A generic hydraulic/storage model provided with an equivalent marginal cost that aids in considering the impact of present decisions in the future costs. 2) A market oriented distribution capacity mechanism that gears DERs and the DSOs to benefit mutually. 3) A distribution network expansion planning formulation that integrates the capacity resource from DERs through the distribution capacity mechanism.
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| 7. |
- Calvo Barajas, Natalia, 1988-
(author)
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Exploring Multidimensional Trust : Shaping Child-Robot Creative Collaborations in Education
- 2023
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Doctoral thesis (other academic/artistic)abstract
- As trust plays a pivotal role in maintaining long-term interactions between children and robots, it is vital to comprehend how children conceptualise trust and the factors influencing their trust in robots. This thesis examines the impact of social robots' behaviours and attributes on children's trust, relationship formation, and task performance in collaborative educational scenarios. A systematic review of child-robot interaction (cHRI) literature identified two primary dimensions of trust: social trust and competency trust. The literature suggests a lack of consensus about how different robot behaviours and attributes affect these two dimensions of trust, as evidence points to different directions. To address these gaps, a collaborative storytelling game was developed to facilitate interactions between children and social robots, aiming to study trust dynamics and enhance learning by fostering children's creativity. The research also examined the impact of robot-related factors, such as behaviour and appearance, on children's interactions with robots. Empirical evidence suggests that while making robots look and behave more like humans is critical for competency trust and task performance, lower human-like attributes are more crucial for developing social trust and relationship formation with robots. Other factors, like time, provide insights into children's trust dynamics. Thus, this thesis explores the role of repeated interactions with artificial agents, indicating that children's competency trust in robots changes over time. This thesis offers significant contributions to the cHRI community. Firstly, it demonstrates that trust is a multidimensional construct that is complex to capture, highlighting the need for reliable, objective measures tailored to the task and intended trust dimension. Secondly, it emphasises the importance of balancing human likeness with social robots when collaborating with children in educational scenarios. Lastly, it proposes that to sustain trustworthy long-term interactions in education; social robots should adapt their behaviour to provide scaffolding, as children will be more inclined to rely on them for learning support as time progresses.
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| 8. |
- Calvo Barajas, Natalia, 1988-, et al.
(author)
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The Effects of Motivational Strategies and Goal Attainment on Children’s Trust in a Virtual Social Robot : A Pilot Study
- 2021
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In: Interaction Design and Children. - New York, USA : ACM Digital Library. - 9781450384520 ; , s. 537-541
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Conference paper (peer-reviewed)abstract
- Understanding the way different robot’s strategies affect children’s perceptions of social robots is crucial for a trustworthy child-robot relationship. This paper presents a preliminary study on whether motivational strategies based on Regulatory Focus Theory and goal attainment affect children’s perception of a virtual social robot when solving a task. The ongoing pandemic (COVID-19) is altering the way we perform research. Hence, we designed a fully autonomous game with a virtual social robot. In an online user study, 25 children (8 to 17 years old) played a regulatory focus goal-oriented game with a virtual child-like version of the Furhat robot. We evaluated children’s perceptions of the robot’s social trust, competency trust, and likability. Also, we assessed the children’s affective state (valence and arousal) before and after playing the game. Our preliminary results show that in the prevention condition, fulfilling the goal elicited less happiness in children. Surprisingly, we observed a trend increase in the social and competency trust elicited by the virtual robot when children were prevented from fulfilling the goal of the task. We discuss the results and the effects of online setups on conducting user studies with children.
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