| 1. |
- Andersson Hultgren, Jonas, 1987-, et al.
(författare)
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Effects of motion parallax in driving simulators
- 2012
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Ingår i: Proceedings of the Driving Simulation Conference Europe 2012.
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Konferensbidrag (refereegranskat)abstract
- Motion parallax due to the driver’s head movement have been implemented and tested in VTI Driving Simulator III. An advanced camera-based system was used to track the head movements of the driver. The output from the tracking system was fed to the simulation software, which used low-pass filtering and a forward prediction algorithm to calculate an offset. The offset was then used by the graphics software to display the correct image to the driver.The effects of driving with motion parallax in the simulator were also observed by an initial study. During the experiment, the subjects caught up with several slower vehicles which forced the driver to make an overtaking maneuver. Oncoming traffic forced the subject to search for a suitable gap for overtaking. The study also included a speed perception test. The results from the study showed no difference in lateral positioning when running behind a slower vehicle nor in speed perception with and without motion parallax.
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| 2. |
- Andersson, Jan, et al.
(författare)
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Trafiksäkerhetspåverkan vid omkörning av 30-metersfordon
- 2011
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Trafikverket överväger att tillåta längre och tyngre fordon på vägarna förutsatt att de inte påverkar trafiksäkerheten negativt. Syftet med studien var att undersöka säkerhetseffekten av fordonslängd, speciellt med avseende på olycksrisken vid omkörningar. Intervjuade förare av en 30-meters timmerbil hade inte upplevt de farhågor som förare av normallånga lastbilar uttryckt i samband med trånga rondeller och korsningar, men de nämner betydelsen av stödjande åkeri, arbetsmiljö och fordonsutrustning. En simulatorstudie studerade bilförares omkörningar av ett 30- och ett 18,75-metersfordon på en 2+1-väg i situationen då två körfält går ihop till ett. Tidluckan till ett återstående körfält var i genomsnitt 0,2 s (sign.) kortare efter omkörningar av 30-metersfordonet i situationer då bakänden var i samma relativa position som för 18,75-metersfordonet vid början av omkörningen. En fältstudie analyserade videoinspelade omkörningar av en 30- och en 24-meters timmerbil på en 2+1-väg och en tvåfältig väg. Ingen signifikant skillnad i tidluckor kunde påvisas mellan omkörningar av de två fordonen för någon av vägtyperna. Det senare resultatet ska dock tolkas med försiktighet på grund av ojämnt distribuerad data som insamlats under specifika förhållanden. Slutsatserna är att det finns en liten tendens till negativ säkerhetseffekt vid omkörningar av längre fordon, och att fler fältstudier är nödvändiga.
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| 3. |
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| 4. |
- Andersson, Claes, 1973, et al.
(författare)
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The urban economy as a scale-free network.
- 2003
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Ingår i: Physical Review E. - 2470-0045 .- 2470-0053. ; 68, s. 036124-
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Tidskriftsartikel (refereegranskat)abstract
- We present empirical evidence that land values are scale free and introduce a network model that reproduces the observations. The network approach to urban modeling is based on the assumption that the market dynamics that generates land values can be represented as a growing scale-free network. Our results suggest that the network properties of trade between specialized activities cause land values, and likely also other observables such as population, to be power-law distributed. In addition to being an attractive avenue for further analytical inquiry, the network representation is also applicable to empirical data and is thereby attractive for predictive modeling.
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| 5. |
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| 6. |
- Andersson, Jonas, 1978-
(författare)
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Det dumma nätet
- 2010
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Ingår i: Efter The Pirate Bay. - Stockholm : Kungliga biblioteket. - 9789188468253 ; , s. 49-72
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Bokkapitel (refereegranskat)
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| 7. |
- Andersson, Jonas, 1978-, et al.
(författare)
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Efter The Pirate Bay
- 2010. - 1
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Bok (refereegranskat)abstract
- En bok om fildelningens teknik, politik, juridik och moral. Hur ska vi förhålla oss till vår nya digitala verklighet?Förstår vi kraften i Internet bäst genom en uppsättning av illasinnade repressiva förkortningar (Ipred, FRA, Acta) eller genom en förutsättningslös politisk diskussion kring vilket slags lagstiftning som ska gälla för den digitala domänen? De svenska riksdagspartiernas växlande syn på fildelning och upphovsrätt har under de senaste åren flankerats av nya, och mer radikala sätt att betrakta frågan.Boken för ett resonemang om vår nya digitala verklighet. Ett antal skribenter nalkas ämnet från olika utgångspunkter och ger en bred bild av vad som är annorlunda i vår tid; efter Pirate Bay. Redaktörer är Jonas Andersson och Pelle Snickars.
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| 8. |
- Andersson, Joacim, PhD, 1978-, et al.
(författare)
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Embodying Teaching : A Body Pedagogic Study of a Teacher’s Movement Rhythm in the ‘Sloyd’ Classroom
- 2018
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Ingår i: Interchange. - : Springer. - 0826-4805 .- 1573-1790. ; 49:2, s. 179-204
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Tidskriftsartikel (refereegranskat)abstract
- The article draws on body pedagogics and considers that teaching and learning experiences and outcomes are directly related to the different characteristics of movement behaviour. In this article movement behaviour specifically centres on a sloyd (handicraft education) teacher’s walk through the classroom. The analysis illuminate the specific teaching use of the body as a spatial, temporal and situational movement rhythm in the classroom and how teachers and pupils tune into educational discourses by means of different body techniques. A wireless GoPro camera was attached to the teacher’s chest in order to gain detailed view of pupil–teacher–body–material–tool encounters and a specific visual perspective of the sloyd teacher’s walk. During a 2.5 years fieldwork, 25 wood–metal sloyd lessons were observed and recorded (circa 50 h of video). The study is informed by Dewey’s embodied theory of learning and focus the alternation between active and passive phases in the stream of experience. From such Deweyan perspective the rhythm of an activity for organising experience, is fundamental to the creation of intelligent moving habits. The results show the body pedagogic experiences, outcomes and means by highlighting the teacher’s (a) spatial path by describing mutual relationships between the material arrangement of the classroom, the teacher’s bodily movements and the pupils’ participation in the lesson, (b) temporal pace by his ‘flights and perchings’ through the lessons and how he moves from pupil to pupil and assignment to assignment, (c) specific pacts by describing body techniques and situated teacher–pupil encounters that terminate in an agreement about how to proceed.
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| 9. |
- Andersson, Jonas, 1978-
(författare)
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For the good of the net : The Pirate Bay as strategic sovereign
- 2009
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Ingår i: Culture Machine. - 1465-4121. ; 10, s. 64-108
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Tidskriftsartikel (refereegranskat)abstract
- In this essay I will argue that as peer-to-peer (p2p)-based file-sharing increasingly becomes the norm for media acquisition among the general Internet public, entities such as The Pirate Bay and associated quasi-institutional entities such as Piratbyrån, Zeropaid, TorrentFreak, etc. have begun to appear less as a reactive force (i.e. ‘breaking the rules’) and more as a proactive one (‘setting the rules’). In providing platforms for sharing and for voicing dissent towards the established entertainment industry, the increasing autonomy gained by these piratical actors becomes more akin to the concept of ‘positive liberty’ than to a purely ‘negative,’ reactive one.1 Rather than complain about the conservatism of established forms of distribution they simply create new, alternative ones. Entities such as The Pirate Bay can thus be said to have effectively had the ‘upper hand’ in the conflict over the future of copyright and digital distribution. They increasingly set the terms with regard to establishing not only technical protocols for distribution but also codes of behaviour and discursive norms. The entertainment industry is then forced to react to these terms. In this sense, the likes of The Pirate Bay become – in the language of French philosopher Michel de Certeau (1984) – strategic rather than tactical. With this, however, comes the added problem of becoming exposed by their opponents as visible perpetrators of particular acts. The strategic sovereignty of sites such as The Pirate Bay makes them appear to be the reason for the wider change in media distribution, not just an incidental side-effect of it.
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| 10. |
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