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| 2. |
- Klapp, Alli, 1968
(författare)
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Att utveckla lärares bedömningspraktik
- 2016
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Ingår i: Ledarskap, utveckling, lärande. - Stockholm : Natur och Kultur. - 9789127147065
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Bokkapitel (refereegranskat)
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| 3. |
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| 4. |
- Späh, Moritz M., et al.
(författare)
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Subjective and objective evaluation of impact noise sources in wooden buildings
- 2013
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Ingår i: Building Acoustics. - 1351-010X. ; 20:3, s. 193-213
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Tidskriftsartikel (refereegranskat)abstract
- Multi-storey timber buildings up to 6 and more floors are increasingly built in many European countries. The challenge with these buildings can be that with traditional intermediate floor constructions in timber it can be difficult to fulfill the standard requirements and even when they are met, low frequency transmission can still cause complaints. Additionally it is difficult to develop appropriate light weight floor constructions since it is well known that the correlation between the standardized evaluation methods using the tapping machine and the human perception of impact noise can be poor, especially in buildings with light weight structures. In the AcuWood project, measurements and recordings on different intermediate timber floor constructions in the laboratory and the field were performed covering a wide range of modern intermediate timber floor constructions. Additionally, one intermediate concrete floor with different floor coverings was included in the study. Besides the standardized tapping machine, the modified tapping machine and the Japanese rubber ball and "real" sources were employed. Subjective ratings from listening tests were correlated to many technical single number descriptors including the standardized descriptors and non-standardized proposals. It was found that the Japanese rubber ball represents walking noise in its characteristics and spectrum best, taking into account the practical requirement of a strong enough excitation for building measurements. The standardized tapping machine, with an appropriate single number descriptor, L' nT, w + CI,50-2500 or slightly better, L' nT, w Hagberg 03, leads also to an acceptably high determination coefficient between the descriptor and the subjective ratings. Additionally, the study delivered data, from which proposals for requirements for the suggested single number ratings are deduced, based on the subjective ratings.
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| 5. |
- Sydelko, Pamela, et al.
(författare)
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Designing interagency responses to wicked problems : Creating a common, cross-agency understanding
- 2021
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Ingår i: European Journal of Operational Research. - : Elsevier. - 0377-2217 .- 1872-6860. ; 294:1, s. 250-263
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Tidskriftsartikel (refereegranskat)abstract
- Wicked problems are open-ended, highly interdependent issues that cross agency, stakeholder, jurisdictional, and geopolitical boundaries. In response, there has been advocacy for interagency working. However, this confounds conventional approaches to government because policies and budgets tend to be aligned within organizational boundaries and not across them, making it difficult to bring the appropriate talent, knowledge and assets into an interagency approach to tackle the interdependencies of whatever wicked problem is at hand. In addition, the purposes, perspectives and values of the various government agencies and other stakeholders can often be in conflict. This paper reports on research to develop and evaluate a systemic intervention approach involving the use of multiple methods underpinned by boundary critique to address a wicked problem. The major focus is how to create a common understanding of a wicked problem among multiple agencies using a participatory problem structuring method called ‘systemic perspective mapping’. The wicked problem we tackled was international organized drug crime and its intersection with local urban gang activity (using Chicago, USA, as a representative city). Perspectives on the problem were structured with participation from various local, regional and federal agencies involved in countering illegal drug trafficking. Our research found that the combined use of boundary critique and systemic perspective mapping was able to generate enough of a common understanding to provide a foundation for the design of an interagency organization using the viable system model (the latter is reported elsewhere in the literature).
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| 6. |
- Cederman, Daniel, 1981, et al.
(författare)
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A Practical Quicksort Algorithm for Graphics Processors
- 2008
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- In this paper we describe GPU-Quicksort, an efficient Quicksort algorithm suitable for highly parallel multi-core graphics processors. Quicksort has previously been considered an inefficient sorting solution for graphics processors, but we show that in CUDA, NVIDIA's programming platform for general purpose computations on graphical processors, GPU-Quicksort performs better than the fastest known sorting implementations for graphics processors, such as radix and bitonic sort. Quicksort can thus be seen as a viable alternative for sorting large quantities of data on graphics processors.
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| 7. |
- Chatzigiannakou, Maria Angeliki, et al.
(författare)
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Offshore deployments of wave energy converters by Uppsala University, Sweden
- 2019
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Ingår i: Marine Systems and Ocean Technology. - : Springer Science and Business Media LLC. - 1679-396X .- 2199-4749. ; 14:2-3, s. 67-74
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Tidskriftsartikel (refereegranskat)abstract
- Ocean can provide an inexhaustible amount of energy. Many marine energy converters have been developed but most of them have not surpassed the experimental phase due to the high costs in installation, operation, and maintenance. Since 2002 Uppsala University has developed and deployed several units of wave energy converters of various designs. The Uppsala University wave energy converter concept consists of a linear generator directly connected to a point absorber buoy that is mounted on a concrete gravity foundation. Uppsala University deployments have been carried out using different deployment vessels and methods. Three main methods were utilized for these deployments that are discussed in terms of cost, manpower, and time efficiency. Depending on the desired outcome—multiple- or single-device deployment, low budget, etc.—one of the proposed methods can be used for the optimal outcome.
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| 8. |
- Hain, Antonia, et al.
(författare)
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Randomized iterative spherical‐deconvolution informed tractogram filtering
- 2023
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Ingår i: NeuroImage. - : Academic Press Inc.. - 1053-8119 .- 1095-9572. ; 278
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Tidskriftsartikel (refereegranskat)abstract
- Tractography has become an indispensable part of brain connectivity studies. However, it is currently facing problems with reliability. In particular, a substantial amount of nerve fiber reconstructions (streamlines) in tractograms produced by state-of-the-art tractography methods are anatomically implausible. To address this problem, tractogram filtering methods have been developed to remove faulty connections in a postprocessing step. This study takes a closer look at one such method, Spherical-deconvolution Informed Filtering of Tractograms (SIFT), which uses a global optimization approach to improve the agreement between the remaining streamlines after filtering and the underlying diffusion magnetic resonance imaging data. SIFT is not suitable for judging the compliance of individual streamlines with the acquired data since its results depend on the size and composition of the surrounding tractogram. To tackle this problem, we propose applying SIFT to randomly selected tractogram subsets in order to retrieve multiple assessments for each streamline. This approach makes it possible to identify streamlines with very consistent filtering results, which were used as pseudo-ground truths for training classifiers. The trained classifier is able to distinguish the obtained groups of complying and non-complying streamlines with the acquired data with an accuracy above 80%.
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| 9. |
- Hellstén, Meeri
(författare)
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International education imperatives and the era of ethical practice : a Swedish higher education case study example.
- 2014
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Ingår i: CONGRESS2014.
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Konferensbidrag (refereegranskat)abstract
- As internationalization of higher education (HE) reaches a forty-year trajectory point, its community of scholars recognize an ever present fragmentation in the field. Four decades of worldwide conceptual and pedagogical incentives have not yielded consensus about successful policy to practice implementation (Ninnes & Hellstén, 2005), nor of its impact upon intercultural understanding (Marginson & Sawir, 2012) or language gains (Grin, 2012). Indeed, the overall advantages of internationalization as a measure of coercive responsiveness to the social justice and civic needs imposed by globalization, remain uncertain. The outcome of such to date is an uneven distribution of HE provisions on account of the recent world economic crises. The responsiveness of international higher education (HE) to current global flows in employability, mobility and competitiveness has been articulated in national, regional and local level policy guidelines over the past decades. The Swedish government has recently formulated international dimensions in public HE policy, as a need to inform intercultural diversity and innovation, and as a crucial feature of academic provision in the 21st Century (HSV, 2008; European Unit, 2000; Minister of Education, Research and Culture, 2005). One consensus account is a recent collaborative forum initiated by the Swedish Research Council (VR), introducing international mobility as an Action plan strategy (VR, 2012). At the public policy level however, internationalization remains caught in the conflict between the degree of internationalization and academic quality, breaking the assumption that merely having international policies in place provides for higher academic excellence. The ethical element of implementation of international policies remains a valid imperative, as addressed in the current contributions in the collection of this symposium. This paper reports one aspect of a Swedish case study, as based on survey data from one public HE institution. Surveys were collected from students in three academic discipline areas, education, humanities and sciences on the responses of the international education system and upon the processes affecting its actors. The survey data is discussed from the perspective of identifying processes that provide alternatives to profit-seeking, unethical, and market driven internationalization approaches, and in relation to the body of the larger international empirical research consortium data framework.
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