| 1. |
- Nyberg, Lars, 1966-, et al.
(author)
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Biological and environmental predictors of heterogeneity in neurocognitive ageing : Evidence from Betula and other longitudinal studies
- 2020
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In: Ageing Research Reviews. - : Elsevier. - 1568-1637 .- 1872-9649. ; 64
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Research review (peer-reviewed)abstract
- Individual differences in cognitive performance increase with advancing age, reflecting marked cognitive changes in some individuals along with little or no change in others. Genetic and lifestyle factors are assumed to influence cognitive performance in aging by affecting the magnitude and extent of age-related brain changes (i.e., brain maintenance or atrophy), as well as the ability to recruit compensatory processes. The purpose of this review is to present findings from the Betula study and other longitudinal studies, with a focus on clarifying the role of key biological and environmental factors assumed to underlie individual differences in brain and cognitive aging. We discuss the vital importance of sampling, analytic methods, consideration of non-ignorable dropout, and related issues for valid conclusions on factors that influence healthy neurocognitive aging.
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| 2. |
- Näsman, Mattias, 1989-, et al.
(author)
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A promised land? : First summary of the research program
- 2023
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Reports (other academic/artistic)abstract
- This document lays out the background for the research program “A promised land? Drivers, challenges and opportunities related to the (green) industrialization of Northern Sweden,” (nr. M22-0029) awarded by the Swedish Riksbankens Jubileumsfond’s in 2022. The document summarizes work in progress and may therefore be updated and republished in different versions according to the requirements of the program. This interdisciplinary program aims to understand the economic, social, and political challenges and opportunities of the ongoing industrial transformation in northern Sweden. A key element of the program is to identify drivers, obstacles, and preconditions in a historical, present, and forward-looking process-perspective.
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| 3. |
- Andersson, Eira
(author)
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Malmens manliga mysterium : En interaktiv studie om kön och tradition i modernt gruvarbete
- 2012
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Doctoral thesis (other academic/artistic)abstract
- Avhandlingen bidrar till förståelse för yrkeslivets betydelse för en uppdelning mellan män och kvinnor, manlighet och kvinnlighet. Genom att belysa hur maskulinitet gestaltas och förhandlar i en mansdominerad industrikontext, som gruvarbete, kan vi förklara ordningar mellan män såväl som funktioner i en könssegregerad arbetsmarknad. Syftet med avhandlingen är att undersöka hur maskulinitet befästs och upprätthålls i ett mansdominerat gruvarbetarkollektiv i ett svenskt gruvföretag. Men också om/hur liknande könskonstruktioner förändras, spontant genom röster inom yrkeskollektivet eller genom påtryckningar och yttre krav. Detta mot en bakgrund av en färdriktning i gruvorganisationen, vilken kan avläsas i en förändring av vardagliga praktiker så väl som nya symboler kring modernt gruvarbete Syftet med avhandlingen är även att belysa erfarenheter kring ett nära interaktivt forskningssamarbete om könsteoretiska frågeställningar tillsammans med ett mansdominerat gruvföretag. Centralt i min interaktiva forskningsdesign är ett projekt om kön, arbetsplatskultur och säkerhet i gruvarbete, kallat Framtidens Gruvkultur vid gruvbolaget LKAB under åren 2006-2007. Framtidens Gruvkultur organiserades som en kunskapsfördjupande forskningscirkel som stöd för organisatoriskt lärande och förändring. Deltagande i forskningscirkeln var verksamma gruvarbetare vid Mining Division LKAB. Jag hade själv rollen av processledare för cirkelns aktiva workshops. I projektet har vi tillsammans genomfört aktiviteter och undersökningar utifrån en könsteoretisk processmodell men framförallt har projektet fungerat som ett forum för samtal kring gruvarbetarens yrkesroll såväl som manlighet i en tid av förändring. Aktiviteter och samtal i Framtidens Gruvkultur visar framförallt hur gruvarbetaren fortfarande är upptagen av att praktisera maskulinitet och dekorera sin yrkesutövning i manliga symboler. Framförallt identifierar sig gruvarbetaren med en trygg manlig industriarbetartradition som betonar en praktisk kompetens och den manliga kroppens tåliga fysik. Denna maskulinitet underbyggs också av föreställningen kring en mytomspunnen gruva och det påfrestande och farliga underjordsarbetet, vara sig det är en realitet eller tankekonstruktion. Män som härbärgerar denna machostereotyp upplyfts till ”riktiga gruvarbetare” medan andra män och kvinnor i gruvarbete underordnas som fjolliga, veka eller helt enkelt inkompetenta och osolidariska mot yrkeskollektivet. En liknande hegemon funktion skapar förståelse för varför ett machoideal befästs om och om igen i gruvarbete och varför förändring eller omförhandling blir problematisk. Framtidens Gruvkultur visar också att gruvarbetaren är aktiva aktörer i förhållande till detta machoideal. De kan, på sina egna villkor, ställa sig över liknande uttryck och beteende, eller helt enkelt frångå stereotypen vilket också praktiseras. Men framförallt visar gruvarbetarna att de på en mer analytisk nivå också problematiserar machomanlighetens konsekvenser. I Framtidens Gruvkultur diskuteras exempelvis; grupptryck, onödigt risktagande, ensamhet eller orättvis behandling av kvinnor. Det är i denna position det finns verkligt utrymme för förändring - en omdefinition av maskulinitet i gruvarbete, där personliga motiv och individuella uttryck får styra en förhandling. En avslutande slutsats är följaktligen att gruvarbetaren i mångt och mycket befäster och upprätthåller ett yrkesideal i nära relation med en machomanlighet med utgångspunkt i en i en maskuliniserad industriarbetartradition. Liknande till synes stabila konstruktioner utmanas, kritiseras och problematiseras av en mer reflekterande manlighet, både från röster inom yrkeskollektivet, men också på grund av yttre krav på förändring. En färdriktning i organisationen som i avhandlingen beskrivs som; Den högteknologiska gruvan, Den säkra gruvan och Den jämställda gruvan. Denna förhandling av mansrollen i modernt gruvarbete uttrycks samtidigt som motstånd och bevarande såväl som önskan om dialog och förändring. Förhandling kring manlighet i gruvarbete pågår och fortgår… en integrerad process året om under dygnets alla timmar, likt gruvans eget produktionssystem.
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| 4. |
- Bergvall-Kåreborn, Birgitta, et al.
(author)
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A Milieu for Innovation : Defining Living Labs
- 2009
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In: Stimulating recovery. - New York : ISPIM. - 9789522148643 - 9522148644 ; , s. 12-
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Conference paper (peer-reviewed)abstract
- A new trend of user involvement in open innovation processes has emerged. Concurring with this trend the Living Lab concept has been re-vitalized. This concept has attracted attention lately, but there exist no coherent view. In this paper we discuss and define the concept and propose five key components and five key principles for Living Labs based on experiences from over 30 development and research projects within two Living Labs, Botnia Living Lab and Halmstad Living Lab. The key components are: ICT & Infrastructure; Management; Partners & Users; Research; and Approach. The key principles are: Openness; Influence; Realism; Value; and Sustainability. Our proposed definition of a Living Lab is: A Living Lab is a user-centric innovation milieu built on every-day practice and research, with an approach that facilitates user influence in open and distributed innovation processes engaging all relevant partners in real-life contexts, aiming to create sustainable values.
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| 5. |
- Bergvall-Kåreborn, Birgitta, et al.
(author)
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A Model for Reflective Participatory Design : The Role of Participation, Voice and Space
- 2015
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In: 21st Americas Conference on Information Systems. - : Americas Conference on Information Systems. - 9780996683104
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Conference paper (peer-reviewed)abstract
- This paper aims to contribute to the participatory tradition in health informatics by presenting a model for reflective participatory design emerging from qualitative fieldwork in a participatory project aimed to improve the health and wellbeing of older people in the northern periphery regions of Europe, through new mobile services. The model brings together two established processes in novel ways: systems development and user participation. Within each process three concepts are presented to facilitate discussion and reflection at the concept level, the process level and the integrated process level.
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| 6. |
- Bergvall-Kåreborn, Birgitta, et al.
(author)
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Places and Spaces within Living Labs
- 2015
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In: Technology Innovation Management Review. - Ottawa, ON : Carleton University. - 1927-0321. ; 5:12, s. 37-47
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Journal article (peer-reviewed)abstract
- In this article, we propose the concepts of places and spaces as conceptual tools to facilitate the organization of innovation activities within living labs. We have taken a pragmatic perspective on these concepts regarding how they are integrated in design situations, and how different types of places and spaces can facilitate or hinder innovation. We have found that, by applying openness, realism, and influence in the different spaces of our living lab milieus, they have transformed into many different places depending on the stakeholders involved, the methods chosen, and the facilitation of activities. Hence, by understanding this line of reasoning, living lab managers can make more informed decisions and plans for innovation activities.
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| 7. |
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| 8. |
- Chico, Jonathan, et al.
(author)
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Thermally driven domain-wall motion in Fe on W(110)
- 2014
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In: Physical Review B. Condensed Matter and Materials Physics. - 1098-0121 .- 1550-235X. ; 90:1
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Journal article (peer-reviewed)abstract
- It has recently been shown that domain walls (DWs) in ferromagnets can be moved in the presence of thermal gradients. In this work we study the motion of narrow domain walls in low-dimensional systems when subjected to thermal gradients. The system chosen is a monolayer of Fe on W(110) which is known to exhibit a large anisotropy while having a soft exchange, resulting in a very narrow domain wall. The study is performed by means of atomistic spin dynamics simulations coupled to first-principles calculations. By subjecting this system to thermal gradients we observe a temperature-dependent movement of the domain wall. The thermal gradient always makes the domain wall move towards the hotter region of the sample with a velocity proportional to the gradient. Our material specific study is complemented by model simulations to discern the interplay between the thermal gradient, magnetic anisotropy, and the exchange interaction and shows that the larger DW velocities are found for materials with broader domain-wall width. The relatively slow DW motion of the Fe/W(110) system is hence primarily caused by its narrow domain-wall width, which results from its large magnetic anisotropy and soft exchange.
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| 9. |
- Eriksson, Anna, 1985-, et al.
(author)
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Effect of varied oxygen levels on the oxidation of a magnetite pellet bed during pot furnace induration
- 2021
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In: ISIJ International. - : Iron and Steel Institute of Japan. - 0915-1559 .- 1347-5460. ; 61:5, s. 1439-1449
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Journal article (peer-reviewed)abstract
- An excess amount of oxygen originating from hydrogen production is likely to be available as part of the HYBRIT (Hydrogen Breakthrough Ironmaking Technology) initiative, aimed at producing fossil-free steel by replacing coking coal with hydrogen. Oxygen enrichment during magnetite pellet induration can lead to reduced fuel amounts and increased productivity. Induration of magnetite iron ore pellets liberates considerable amounts of heat when magnetite is oxidised to hematite. Elevated oxygen levels in the process gas are expected to promote the oxidation reaction, resulting in increased process efficiency. However, more information is required to enable the transition towards a higher oxygen level process and improved production rate, while maintaining the metallurgical properties of the pellet bed. In this study, interrupted pot furnace experiments were conducted on a magnetite pellet bed (approximately 100 kg) at Luossavaara-Kiirunavaara Aktiebolag to investigate the effect of oxygen levels at approximately 6%, 13%, and 30% O2. Temperature profiles are measured and pellet properties (compression strength, porosity, oxidation degree, microstructures) are analysed at different bed heights. The higher oxygen level (approximately 30% O2) intensifies the oxidation reaction, resulting in increased temperature, oxidation rate and compression strength across the vertical bed height. Three different pellet oxidation profiles are identified, namely, homogenous oxidation across the pellet, complete oxidation of the pellet shell and an unreacted core with a sharp/distinct interface, and partial oxidation of the pellet shell and an unreacted core. A higher oxygen level results in an increased oxidation rate, while the temperature controls the pellet oxidation profile. © 2021 Iron and Steel Institute of Japan. All rights reserved.
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| 10. |
- Eriksson, Anna, et al.
(author)
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Effects of High-Oxygen-Level Process Gas (40% O2) on the Temperature and Strength Development of a Magnetite Pellet Bed during Pot Furnace Induration
- 2022
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In: ISIJ International. - : Iron and Steel Institute of Japan. - 0915-1559 .- 1347-5460. ; 62:3, s. 465-476
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Journal article (peer-reviewed)abstract
- As Sweden transitions to hydrogen-based steel production to enable fossil-free steelmaking, excess oxygen is likely to be generated through hydrogen production via water electrolysis based on green electricity. Further, during iron-ore pellet production, magnetite oxidises to hematite, releasing considerable heat. This excess oxygen and inherent heat can be used to promote exothermic oxidation, reducing the external fuel requirement, decreasing greenhouse gas emissions, and conforming to the Paris climate agreement. In this study, the effects of a high-oxygen-content (40% O2) inflow gas on pellet bed oxidation during induration were investigated, focusing on the resulting temperature profiles in the bed and the strength development of the produced pellets. An interrupted pot furnace experimental methodology was employed on the bed scale, with an approximate scale of 100 kg pellets per bed. The results indicate that the use of 40% O2 gas helps rapidly enhance the pellet properties and yields a more uniform pellet bed in terms of oxidation degree compared to the use of 13% O2 gas. In addition, improved cold compression strength (CCS) can be achieved when using 40% O2 inflow-gas. At temperatures above 1000°C, the oxidation degree and CCS are primarily enhanced by the high oxygen level of the inflow gas; this behaviour cannot be compensated for by increasing the temperature and residence time at a lower oxygen level. The positive effects on the bed-scale oxidation degree and strength are promising and may enable faster production rates in the future.
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