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- Johansson, Ronnie, et al.
(författare)
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On the Definition and Scope of Information Fusion as a Field of Research
- 2022
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Ingår i: ISIF Perspectives on Information Fusion. - : International Society of Information Fusion (ISIF). - 2831-4824 .- 2831-4832. ; 5:1, s. 3-12
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Tidskriftsartikel (refereegranskat)abstract
- A definition of information fusion (IF) as a field of research can benefit researchers within the field, who may use such a definition when motivating their own work and evaluating the contributions of others. Moreover, it can enable researchers and practitioners outside the field to more easily relate their own work to the field and more easily understand the scope of IF techniques and methods. Based on strengths and weaknesses of existing definitions, a definition is proposed that is argued to effectively fulfill the requirements that can be put on a definition of IF as a field of research. Although the proposed definition aims to be precise, it does not fully capture the richness and versatility of the IF field. To address that limitation, we highlight some topics to explore the scope of IF, covering the systems perspective of IF and its relation to ma-chine learning, optimization, robot behavior, opinion aggregation, and databases.
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| 3. |
- Åstrand, Per, 1935-, et al.
(författare)
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Nonsubmerged and submerged implants in the treatment of the partially edentulous maxilla.
- 2002
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Ingår i: Clinical Implant Dentistry and Related Research. - 1523-0899 .- 1708-8208. ; 4:3, s. 115-127
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Dental implants vary in design and surfaces. In addition, different surgical techniques have been used for implant insertion. The ITI Dental Implant System (Straumann AG, Waldenburg, Switzerland) has always required a one-stage technique, whereas the Brσnemark System (Nobel Biocare AB, Gothenburg, Sweden) requires a two-stage technique. PURPOSE: The aim of this study is to compare the outcome of fixed partial bridges in the maxilla supported by both ITI and Brσnemark implants in a split-mouth design. MATERIALS AND METHODS: Twenty-eight patients with a residual anterior dentition in the maxilla were included in this split-mouth study. The Brσnemark implants were used on one side and the ITI implants on the other side of the residual dentition according to a randomization procedure. A blocking size of four was used, giving equal probability of placing ITI or Brσnemark implants in the right or left side of the jaw. The surgical and prosthetic procedures followed the guidelines given by the manufacturers. The prosthetic treatment with the two-implant systems was performed at the same time, and for that reason the healing period was 6 months for both systems. The observation period for all patients was 1 year after loading. RESULTS: Two Brσnemark implants (in one patient) were lost before loading, and one ITI implant was lost 1 year after loading. There was no significant difference in survival rate. Radiographic examination of the bone level was performed at the time of delivery of the bridge and after 1 year. The mean marginal bone level at baseline was situated 1.9 mm from the reference point for the Brσnemark implants and 1.5 mm for the ITI implants. With regard to the insertion depth used, these bone levels indicate that bone loss had taken place before baseline. However, between baseline and the 1-year examination, there was no significant change of the marginal bone (0.2 +/- 0.08 mm at the Brσnemark implants and 0.1 +/- 0.11 mm at the ITI implants). The difference between results with the two implants was not statistically significant. Crater-form bone destructions were seen at some ITI implants, indicating periimplantitis. However, at only two implants were there clinical signs of periimplantitis. CONCLUSIONS: No significant difference in survival rate or in marginal bone change could be demonstrated between the two systems. At some ITI implants (18%), crater-form bone loss was observed.
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| 4. |
- Birberg Thornberg, Ulrika
(författare)
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Fats in Mind : Effects of Omega-3 Fatty Acids on Cognition and Behaviour in Childhood
- 2011
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- The aim of this thesis was to examine possible effects of omega-3 fatty acids on children’s cognition and behavior. Longitudinal as well as cross-sectional comparisons were made among children with typical development and children with ADHD /at risk developing ADHD.The specific purposes were to examine (1) breast-feeding in relation to cognition; (2) relation between long chain poly unsaturated fatty acids (LCPUFAs) in mothers breast-milk and children´s cognition; (3) effects of EPA supplementation on cognition and behavior in children with ADHD; (4) if LCPUFAs have differential effects on working memory, inhibition, problem-solving and theory of mind (ToM).The main conclusions were as follows; (1) duration of breast-feeding was positively correlated to children levels of intelligence (IQ); (2) LCPUFAs in breast-milk was related to children’s ToM and IQ, the quotient DHA/AA, together with length of breastfeeding and gestation week explained 76% of the variance of total IQ; (3) subtypes of children with ADHD responded to EPA supplementation with significant reductions in symptoms, but there were no effects in the whole group with ADHD; (4) ToM ability was related to LCPUFAs, but not to any other cognitive measures as working memory, inhibition and problem-solving.To conclude, these results indicate that fatty acid status in breast-milk at birth affect general cognitive function in children at 6.5 years of age, including ToM. Short-term intervention with omega-3 fatty acids does not affect cognition in children with ADHD, but improves clinical symptoms as assessed by means of teacher ratings. These results further indicate that hot executive function and social cognition may be an area of interest for future research.
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| 5. |
- Birberg Thornberg, Ulrika, et al.
(författare)
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Nutrition and theory of mind : The role of polyunsaturated fatty acids (PUFA) in the development of theory of mind
- 2006
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Ingår i: Prostaglandins, Leukotrienes and Essential Fatty Acids. - : Elsevier BV. - 0952-3278 .- 1532-2823. ; 75:1, s. 33-41
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Tidskriftsartikel (refereegranskat)abstract
- Breast-milk provides nutrients required for the development of the brain. n-6 and n-3 long-chain polyunsaturated fatty acids (LCPUFAs) have been suggested to be particularly involved. In this study levels of fatty acids in breast-milk were examined in relation to theory of mind (ToM) (n=13) and WISC-III (n=22) in six-year-old children. ToM tasks comprised four illustrated stories with questions about emotional (sad) events. Single polyunsaturated fatty acids (PUFA) were estimated as well as ratios between different fatty acids in order to describe putative associations between PUFA and psychological measures. Results show correlations between both ToM and WISC-III with single n-6 PUFA and the ratios DHA/AA and DHA/DPA. The correlations remained when socio-demographic factors were statistically controlled for. The positive findings related to the n-6 and n-3 LCPUFAs corroborate previous findings related to child cognitive development. © 2006 Elsevier Ltd. All rights reserved.
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