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Träfflista för sökning "WFRF:(Johansson Mikael) srt2:(2020)"

Sökning: WFRF:(Johansson Mikael) > (2020)

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1.
  • Johansson, Roger, et al. (författare)
  • Gaze position regulates memory accessibility during competitive memory retrieval
  • 2020
  • Ingår i: Cognition. - Elsevier. - 0010-0277. ; 197
  • Tidskriftsartikel (refereegranskat)abstract
    • While previous research has demonstrated that gaze position can increase the accessibility of previous memories when reconstructing the past (Johansson & Johansson, 2014), the present study tested whether such gaze behavior can assist in selecting target memories in the face of competing memories. An adapted retrieval practice paradigm was used, where participants were engaged in selective retrieval while looking at locations that overlapped with the encoding location of either the target item or the competing item. Replicating previous findings, we show that encoding-retrieval compatibility in gaze positions increases the likelihood of successful remembering. We furthermore provide novel evidence that looking at locations where competing items were encoded during retrieval practice induces forgetting of the competitors during subsequent tests of memory. Corroborating evidence from changes in pupil size suggests that such gaze induced forgetting is modulated by the increased demands to successfully resolve interference from competing memories. This study represents the first demonstration that gaze position can both up- and downregulate memory accessibility during competitive memory retrieval and offers novel insights into the underlying dynamics.
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2.
  • Das, Oisik, et al. (författare)
  • Naturally-occurring bromophenol to develop fire retardant gluten biopolymers
  • 2020
  • Ingår i: Journal of Cleaner Production. - Elsevier. - 0959-6526. ; 243
  • Tidskriftsartikel (refereegranskat)abstract
    • The aim of the study was to impart fire retardancy in wheat gluten polymer through naturally-occurring additives such as lanosol. The fire properties of lanosol were compared with two other conventional brominated fire retardants (Tetrabromobisphenol A and Hexabromocyclododecane). Samples containing fire retardants and gluten were prepared through compression moulding process and then characterised for their fire and mechanical properties. All fire retardants enhanced the reaction-to-fire and thermal properties of gluten while generating V-0 (i.e. vertical position and self-extinguished) ratings in the UL-94 test. The presence of all the fire retardants increased the modulus of the gluten polymer but the fire retardant particles were detrimental for the tensile strength. Nevertheless, lanosol addition delayed ignition and lowered peak heat release rate of gluten by the maximum amount, thereby leading to relatively higher fire performance index (compared to the other fire retardants). Lanosol also allowed the gluten to create a dense char barrier layer during burning that impeded the transfer of heat and flammable volatiles. The fact that only 4 wt% lanosol was able to cause self-extinguishment under direct flame and reduce peak heat release rate by a significant 50% coupled with its inherent occurrence in nature, raises the question if lanosol can be a potential fire retardant in polymeric systems, although it is a bromophenol.
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3.
  • Johansson, Dan, 1964-, et al. (författare)
  • The Rise and Decline of Industrial Foundations as Controlling Owners of Swedish Listed Firms : The Role of Tax Incentives
  • 2020
  • Ingår i: Scandinavian Economic History Review. - Taylor & Francis Group. - 0358-5522.
  • Tidskriftsartikel (refereegranskat)abstract
    • Beginning in the interwar period, industrial foundations became a vehicle for the corporate control of large listed firms in Sweden, but in the 1990s they were replaced by wealthy individuals who either directly own controlling blocks or who own them through holding companies. We study potential explanations for this change and propose two taxation-related candidates: shifts in the relative effective taxation across owner types and the dismantling of the inheritance taxation that prevented the generational transfer of the ownership of large controlling blocks. Our analysis exploits newly computed marginal effective capital income tax rates across capital owners, accounting for all relevant factors, including rules governing tax exemptions. We show that the 1990–91 tax reform, abolition of the wealth tax for controlling owners in 1997, 2003 tax exemption of dividends and capital gains on listed stock for holding companies with a voting or equity share of at least 10 percent, and abolition of the inheritance and gift taxes in 2004 reversed the rules of the game. Recently, control has largely been wielded through direct ownership, and the role of foundations is rapidly declining. These findings point to the importance of tax incentives for the use of foundations as the control vehicles of listed firms.
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