| 1. |
- Moberg, Christina, et al.
(författare)
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De unga gör helt rätt när de stämmer staten
- 2022
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Ingår i: Aftonbladet. - 1103-9000.
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Tidskriftsartikel (populärvet., debatt m.m.)abstract
- 1 620 forskare och lärare i forskarvärlden: Vi ställer oss bakom Auroras klimatkrav
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| 2. |
- Björgvinsson, Erling, et al.
(författare)
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Prototyping Futures
- 2012
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Prototyping Futures gives you a glimpse of what collaborating with academia might look like. Medea and its co-partners share their stories about activities happening at the research centre – projects, methods, tools, and approaches – what challenges lie ahead, and how these can be tackled. Examples of highlighted topics include: What is a living lab and how does it work? What are the visions behind the Connectivity Lab at Medea? And, how can prototyping-methods be used when sketching scenarios for sustainable futures? Other topics are: What is the role of the body when designing technology? What is collaborative media and how can this concept help us understand contemporary media practices? Prototyping Futures also discusses the open-hardware platform Arduino, and the concepts of open data and the Internet of Things, raising questions on how digital media and connected devices can contribute to more sustainable lifestyles, and a better world.
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| 3. |
- Davidsson, Peter, et al.
(författare)
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Analysis of sound transmission loss of double-leaf walls in the low-frequency range using the finite element method
- 2004
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Ingår i: Building Acoustics. - : SAGE Publications. - 1351-010X .- 2059-8025. ; 11:4, s. 239-257
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Tidskriftsartikel (refereegranskat)abstract
- The sound transmission loss of double walls in the low-frequency range is studied by means of structure-acoustic finite element analysis. The analysis simulates standard experiments to determine sound transmission loss of walls. The model is a detailed description of the geometry of the system, including both the double wall and the rooms acoustically coupled to the wall. The frequency range studied is in the 1/3-octave bands between 40 Hz and 200 Hz. A parametric study is performed to investigate the influence on the sound transmission loss of various material and geometric properties of the wall and the dimensions of the connecting rooms. The model confirms the importance of primary structural resonance and the size of the connecting rooms in determining the degree of sound transmission loss. The primary structural resonance is mainly determined by the distance between the wall studs and the properties of the sheeting material. Wall length is also important; if the length is such that the wall studs of the last wall cavity are closer together than those of the other wall cavities, the primary structural resonance will be at a higher frequency, thereby decreasing sound transmission loss over a broader frequency range. Similar dimensions of the connecting rooms results in poor transmission loss, mainly at frequencies below 100 Hz (for the wall and room dimensions studied here).
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| 4. |
- Ardianti, Retno, et al.
(författare)
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Psychological well-being of hybrid entrepreneurs
- 2022
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Ingår i: Journal of Business Venturing Insights. - : Elsevier. - 2352-6734. ; 17
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Tidskriftsartikel (refereegranskat)abstract
- Although the phenomenon of hybrid entrepreneurs—individuals who work in paid and self-employment simultaneously—is prevalent, the psychological well-being of hybrid entrepreneurs has not been researched systematically to date. This is unlike research on paid employment and (assumed) full-time entrepreneurship, where psychological well-being has been researched as a key factor. Using data from the United Kingdom Household Longitudinal Survey, we address this void by studying whether hybrid entrepreneurs display distinct psychological well-being patterns (measured via mental strain, job satisfaction, and life satisfaction), utilizing a comparison with full-time paid employed, full-time self-employed and individuals working in two paid jobs. We further examine whether the specific work arrangements of hybrid entrepreneurs shape their well-being. To this end, we study the changes in well-being of hybrid entrepreneurs and other individuals in the comparison groups who switch to other jobs. For this purpose, we employed matching (entropy balancing approach) to account for self-selection effects. Our results suggest that the well-being of hybrid entrepreneurs is indeed distinct and can be explained by both self-selection effects and unique aspects of their work arrangements. Our study is thus the first to deliver evidence showing that hybrid entrepreneurs need to be studied as a separate group in entrepreneurship research concerned with well-being and psychological functioning. Our results have important implications not only for future research but also for practice.
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| 5. |
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| 6. |
- Bakker, Rene, et al.
(författare)
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When to “pull the plug” and when to “take the plunge”: the timing of strategic decisions towards new ventures
- 2014
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Ingår i: Australian Centre for Entrepreneurship Research Exchange Conference 2014, 4-7 February 2014, Sydney, Australia: Conference Proceedings. - Brisbane : Queensland University of Technology. - 9781921897962
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Konferensbidrag (refereegranskat)abstract
- Firms face opposing incentives regarding when to take strategic decisions towards their exploration ventures. On the one hand, postponing can reduce uncertainty, but on the other, moving quickly allows capitalizing on a potential competitive advantage. Drawing on theories of entrepreneurship and real options reasoning, we suggest that firms resolve the competing tensions for acceleration and deceleration through an assessment of their venture portfolio and environment. An empirical study of the timing of termination and exploitation decisions taken with regard to 3,272 exploration ventures in Australia’s mining industry over the years 2002-2011 provides an insight into the drivers of decision timing. We find that venture portfolio composition is an important driver of timing— but only with regard to exploitation decisions. Higher levels of market uncertainty increase the time to venture termination but not exploitation, and a positive market trajectory increases the time to venture termination, yet decreases the time to exploitation. Finally, we find support for interaction effects between the portfolio and market. The overall pattern of findings sheds new light on the tension between deceleration and acceleration in entrepreneurial strategic decision making and highlights the importance of distinguishing between the timing of different types of decisions.
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| 7. |
- Bakker, Rene, et al.
(författare)
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When to pull the plug and when to take the plunge: timing strategic decisions about new ventures
- 2014
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Ingår i: The Academy of Management Annual Meeting Proceedings 2014. - Brisbane : Queensland University of Technology.
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Konferensbidrag (refereegranskat)abstract
- Firms face opposing incentives regarding when to make strategic decisions about their exploration ventures. On the one hand, postponing a decision can reduce uncertainty, while on the other hand, moving quickly allows one to capitalize on favorable market conditions. Drawing on theories of entrepreneurship, real options reasoning, and decision speed, we suggest that firms resolve competing tensions between acceleration and deceleration through an assessment of their venture portfolio and environment. An empirical study of the timing of termination and exploitation decisions regarding 3,272 exploration ventures in Australia’s mining industry over the years 2002–2011 provides insights into the drivers of decision timing. We find that venture portfolio composition is an important driver of timing but only with regard to exploitation decisions. Higher levels of market uncertainty increase the time to venture termination but not exploitation, and a positive market trajectory increases the time to venture termination yet decreases the time to venture exploitation. We also find support for an interaction effect between the portfolio and market characteristics. This pattern of findings sheds light on the tension between acceleration and deceleration in strategic decision making and highlights the importance of distinguishing between the timing of different types of decisions.
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| 8. |
- Berger, Elisabeth S. C., et al.
(författare)
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Digital or not – The future of entrepreneurship and innovation : Introduction to the special issue
- 2021
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Ingår i: Journal of Business Research. - : Elsevier. - 0148-2963 .- 1873-7978. ; 125, s. 436-442
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Digitization is arguably currently the single most important force in entrepreneurship and innovation. In this special issue editorial, we shed light on the current state of digital entrepreneurship and digital innovation research to take stock of past research and identify opportunities for the future. The 11 papers in this special issue present a decisive step in extending the current research by either exploring the context of digital entrepreneurship and digital innovation, by operationalizing digital technologies as moderators or mediators, or by modeling the particularities of the role of digital technologies as independent or dependent variables. This editorial suggests paths for future research and specifically calls for more joint consideration of digital entrepreneurship and digital innovation along with specific theory building and testing that incorporates the specificities of digitization. An important aspect in that process is extending the understanding of the dark side of digitization.
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| 9. |
- Bergh, Torsten, et al.
(författare)
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Capacity Issues in Sweden - Applications and Research
- 2016
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Ingår i: Transportation Research Procedia. - : Elsevier BV. - 2352-1465. ; , s. 36-50, s. 36-50
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Konferensbidrag (refereegranskat)abstract
- This paper gives an overview of the Swedish trunk road system and present objectives, guidelines concerning capacity and level of service procedures to assess these issues in the feasibility and design procedure are also described.An important goal in Sweden is investments and speed limit changes over a 10 year time scale to decrease the C02-exposure. The long term speed limit overview with the objective to require median barriers at speed limits over 80 kph with results so far is presented. By now over 50 % of the former traffic load over 80 kph is decreased to 80 kph. Some 2,700 km have been retrofitted to 2+1 median barrier roads with speed limit mainly 100 kph.An overview is also given of the updated Swedish Highway Capacity Manual with new chapters especially on jam densities, entry lanes, weaving areas and traffic signals. Some interesting research projects are also briefly covered. These are 2+1 median barrier roads, capacities at motorway work zones, speed harmonisation with variable speed limits on motorways to increase capacity, ramp metering and Drive Me (autonomous driving full scale tests).
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| 10. |
- Betsholtz, Alexander, et al.
(författare)
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New Perspectives on the Interactions between Adsorption and Degradation of Organic Micropollutants in Granular Activated Carbon Filters
- 2024
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Ingår i: Environmental Science and Technology. - : American Chemical Society. - 0013-936X .- 1520-5851. ; 58:26
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Tidskriftsartikel (refereegranskat)abstract
- The removal of organic micropollutants in granular activated carbon (GAC) filters can be attributed to adsorption and biological degradation. These two processes can interact with each other or proceed independently. To illustrate the differences in their interaction, three 14C-labeled organic micropollutants with varying potentials for adsorption and biodegradation were selected to study their adsorption and biodegradation in columns with adsorbing (GAC) and non-adsorbing (sand) filter media. Using 14CO2 formation as a marker for biodegradation, we demonstrated that the biodegradation of poorly adsorbing N-nitrosodimethylamine (NDMA) was more sensitive to changes in the empty bed contact time (EBCT) compared with that of moderately adsorbing diclofenac. Further, diclofenac that had adsorbed under anoxic conditions could be degraded when molecular oxygen became available, and substantial biodegradation (≥60%) of diclofenac could be achieved with a 15 min EBCT in the GAC filter. These findings suggest that theretention of micropollutants in GAC filters, by prolonging the micropollutant residence time through adsorption, can enable longer time periods for degradations than what the hydraulic retention time would allow for. For the biologically recalcitrant compound carbamazepine, differences in breakthrough between the 14C-labeled and nonradiolabeled compounds revealed a substantial retention via successive adsorption-desorption, which could pose a potential challenge in the interpretation of GAC filter performance.
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