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- Hanberger, Anders, 1953-
(author)
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Democratic caring evaluation for refugee children in Sweden
- 2018
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In: Evaluation for a caring society. - Charlotte, NC : Information Age Publishing. - 9781641131636 - 9781641131643 - 9781641131650 ; , s. 105-124
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Book chapter (peer-reviewed)abstract
- What is a democratic caring (DC) evaluator and what does it mean to be one, especially in terms of practicing responsibility for the stakeholders one works with in evaluation contexts? This chapter discusses the challenging issue of the responsibilities of evaluators, citing an evaluation of the reception of unaccompanied and separated children (UASC) in Umeå, a northern-Swedish community of over 100,000 residents. DC evaluation does not refer to a new evaluation approach. The notions of DC evaluation and the DC evaluator are used here in discussing what it means to be an evaluator who develops evaluation within a democratic and caring society. The discussion builds on both democratic evaluation and care theory. It is suggested that an enlightened DC evaluator is informed both by democratic evaluation and by research into good care, applying this knowledge reflectively during the evaluation process. This chapter discusses what is involved in developing a DC evaluation with a special focus on the evaluator's respon-sibilities and good care.The chapter continues with a brief presentation of the case: a democratic evaluation of care for a group of refugee children in Sweden. Subsequently, the theoretical underpinnings of democratic evaluation are presented. The next section discusses what DC awareness means and the responsibilities of a DC evaluator, illustrating this with examples from the case. The chapter concludes by considering what DC evaluation implies for the good care of refugee children.
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| 3. |
- Tang, Jianwei, et al.
(author)
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Hybrid metal-dielectric ring resonators for homogenizable optical metamaterials with strong magnetic response at short wavelengths down to the ultraviolet range
- 2013
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In: Optics Express. - 1094-4087. ; 21:20, s. 23511-23521
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Journal article (peer-reviewed)abstract
- We derive an analytical LC model from Maxwell's equations for the magnetic resonance of subwavelength ring resonators. Using the LC model, we revisit the scaling of split-ring resonators. Inspired by the LC model, we propose a hybrid metal-dielectric ring resonator mainly composed of high index dielectric material (e. g., TiO2) with some gaps filled with metal (e. g., Ag). The saturation frequency of magnetic response for the hybrid metal-dielectric ring resonator is much higher (up to the ultraviolet range) than that for split-ring resonators, and can be controlled by the metal fraction in the ring. The hybrid metal-dielectric ring resonator can also overcome the homogenization problem of all-dielectric magnetic resonators, and therefore can form homogenizable magnetic metamaterials at short wavelengths down to the ultraviolet range.
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| 5. |
- Blaszak, Maciej, et al.
(author)
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Separable quantizations of Stackel systems
- 2016
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In: Annals of Physics. - : Academic Press. - 0003-4916 .- 1096-035X. ; 371, s. 460-477
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Journal article (peer-reviewed)abstract
- In this article we prove that many Hamiltonian systems that cannot be separably quantized in the classical approach of Robertson and Eisenhart can be separably quantized if we extend the class of admissible quantizations through a suitable choice of Riemann space adapted to the Poisson geometry of the system. Actually, in this article we prove that for every quadratic in momenta Stackel system (defined on 2n dimensional Poisson manifold) for which Stackel matrix consists of monomials in position coordinates there exist infinitely many quantizations - parametrized by n arbitrary functions - that turn this system into a quantum separable Stackel system. (C) 2016 Elsevier Inc. All rights reserved.
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| 6. |
- Losacker, Sebastian, et al.
(author)
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Rethinking bioeconomy innovation in sustainability transitions
- 2023
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In: Technology in Society. - 0160-791X. ; 74
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Journal article (peer-reviewed)abstract
- Over the past two decades, a new research field dealing with “sustainability transitions” has emerged, analyzing the transformation of socio-technical systems towards more sustainable futures. While there is consensus on the crucial role of the bioeconomy in sustainability transitions research, we argue that the true potential of many bioeconomy innovations is not yet sufficiently recognized and assessed. Much of the literature on the bioeconomy focuses on the bio-based substitution of environmentally harmful goods, neglecting the disruptive potential of innovative biotechnologies. In this commentary, we present some examples on advanced biotechnology and we invite sustainability transitions scholars to rethink their notion of bioeconomy innovations.
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| 7. |
- Ó Broin, Eoin, 1973, et al.
(author)
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Quantification of the Energy Efficiency Gap in the Swedish Residential Sector
- 2015
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In: Energy Efficiency. - : Springer Science and Business Media LLC. - 1570-646X .- 1570-6478. ; 8:5, s. 975-993
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Journal article (peer-reviewed)abstract
- We present a method for quantifying the energy efficiency gap ex-ante. To do this we define the energy efficiency gap as being the difference between the ex-ante market and techno-economic energy savings potentials. The estimation of market potential is based on top-down (econometric) modelling of energy demand using data from the period 1970–2005. The techno-economical estimates are made using a bottom-up building stock model (ECCABS), to assess the effects and cost-efficiency of various energy efficiency measures. Common to these two modelling approaches are two scenarios of energy prices, which differ only with respect to the carbon tax component. We implement the method for the case of useful energy demand for space and water heating in the Swedish residential sector up to 2030.In comparison to the level of energy use in 2005 (74 TWh), the top-down model predicts for 2030 reductions in demand for the two price scenarios of 17 TWh and 21 TWh, respectively. The bottom-up model predicts corresponding reductions in demand of 25 TWh and 31 TWh, respectively. Thus, there is an energy efficiency gap between the two models of at least 8 TWh in 2030. An implicit discount rate of 10% would render the results from the bottom-up modelling identical to those from the top-down modelling. However the presence of the energy efficiency gap indicates that there is a need for enhanced policies in order to make future reductions in energy demand reach the levels predicted by the bottom-up modelling.
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| 9. |
- Solbrand, Anita
(author)
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Charge transport in nanostructured metal oxide thin film electrodes
- 1998
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Doctoral thesis (other academic/artistic)abstract
- Nanostructured metal oxide electrodes are of great interest due to its wide field of potential applications, e.g. solar cells and batteries. The electron transport in nano-structured TiO2 and ZnO thin film electrodes was studied with time-resolved photo-currents and steady-state measurements. The results were discussed using a diffusion model for the electron transport and relations for the photocurrent transients were deduced, The experimental results were fitted to simulations giving diffusion coefficients for the electron transport of 1.5·10-5 cm2/s for TiO2 in 0.7 M LiClO4, 0.6·10-5 cm2/s for dye-sensitized TiO2 in 0.1 M KI and 1·10-4 cm2/s to 1·10-6 cm2/s, depending on potential for ZnO in 0.5 M LiC1O4.The electron transport was found to be dependent on potential, light intensity and electrolyte composition, both in time-resolved and steady-state measurements. The potential dependence was more pronounced for ZnO. Electron scavenging species in the electrolyte such as O2 was found to increase the electron losses and surface treatments with e.g. pyridine was found to decrease electron losses. The electron losses were larger for TiO2 than for ZnO.The intercalation of Li+ ions in TiO2 was studied with chronoamperometry and cyclic voltammerty. The entire area was found to be active in the intercalation process and the chemical diffusion coefficients for the insertion and extraction of Li+ were determined to 1·10-17 cm2/s and 4·10-17 cm2/s, respectively. Kinetic information about the processes was also obtained.
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