| 51. |
- Brodin, Erik, 1975
(author)
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On quantile estimation by bootstrap
- 2006
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In: Computational Statistics and Data Analysis. - : Elsevier BV. - 0167-9473. ; 50:6, s. 1398-1406
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Journal article (peer-reviewed)abstract
- Exact bootstrap is used to optimize the weights of an L-estimator for quantiles with respect to the estimated MSE (mean square error). Performance of the new estimator is measured by comparing MSE with the sample quantile. The new estimator performs better than the sample quantiles in almost every case. However, the gain is only about 5%, in terms of decreased MSE.
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| 52. |
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| 53. |
- Brodin, Elisabeth
(author)
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Self-reported activity and participation in persons with haemophilia living in Sweden
- 2016
-
Doctoral thesis (other academic/artistic)abstract
- Background: Haemophilia is a hereditary disease caused by deficiency of clotting factor VIII or IX. Recurrent joint bleeding episodes can lead to haemophilia arthropathy, a condition affecting daily activities and participation in society. The Haemophilia Activity List, (HAL), is a self-reported questionnaire that provides the person’s own view of perceived difficulties in performance of daily activities. The overall aim of this thesis was to describe self-reported activity and participation in adult persons with haemophilia in Sweden and explore their experiences of living with haemophilia. Methods: All adult persons with haemophilia in Sweden meeting the inclusion criteria were invited by letter to studies I+II and III (84 and 129 participated respectively) to validate Haemophilia Activity List and explore any difficulties in activity and participation. Sixty-one participated twice, first in studies I+II and then in study III. In study IV persons from the Haemophilia Treatment Centre in Gothenburg were recruited for interviews about their experiences living with haemophilia (14 participated). The interviews were analysed according to the empirical psychological phenomenological method described by G. Karlsson. Main results: The most common difficulties reported were in physical activities involving the lower extremities such as e.g. rising from a chair, riding a bicycle, walking and running. Those with early treatment onset reported fewer difficulties than the group with later treatment onset. Over time the later treatment onset group reported increasing difficulties in leisure activities and sport. This indicates a greater need for rehabilitation for the later treatment onset group to help maintain their activity level in daily life. The participants interviewed valued the treatment with clotting factor and support from caregivers at the Haemophilia Treatment Centre. Preventing bleeds was a main objective for the interviewees with haemophilia. They adapted their social activities and strived for normality throughout life. The Swedish version of HAL has high internal consistency and excellent to good convergent validity and can be used as a complement to other clinical tests to establish the patient’s self-perceived difficulties to perform activities of daily life. Conclusion: The Swedish persons living with haemophilia reported most difficulties with activities involving the lower extremities and there was a difference between the groups with early and later treatment onset, where the later onset reported more difficulties over all. The interviewees with haemophilia adapted their social activities and strived for normality throughout life. They valued the treatment with clotting factor, and a major objective was preventing bleeds. The Swedish version of HAL can be used in the clinic and in research to gather information about the person´s self-perceived activity and participation in daily life.
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| 54. |
- Brodin, Fredrik Wernersson, et al.
(author)
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Preparation of individualised lignocellulose microfibrils based on thermomechanical pulp and their effect on paper properties
- 2015
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In: Nordic Pulp & Paper Research Journal. - : SPCI. - 0283-2631 .- 2000-0669. ; 30:3, s. 443-451
-
Journal article (peer-reviewed)abstract
- Although mechanical pulp can be considered as a potential raw material for preparation of microfibrils, suitable pre-treatment methods have been missing. Consequently, the objectives of this study were firstly to find a suitable procedure to prepare lignocellulose microfibrils (LCMF) from fractionated thermo-mechanical pulp (TMP) and secondly to evaluate if these TMP-based materials could be used as paper additives to increase paper strength. Carboxymethylation was found to be a suitable pretreatment for both TMP fines and TMP fibres to enable preparation of individualised LCMF after subsequent homogenisation treatment. After air drying, this material formed dense continuous films in conformity with films prepared from cellulose microfibrils (CMF) originating from chemical pulp. Homogenisation only or sulphonation followed by homogenisation did not fibrillate the TMP samples into individualised LCMF. Analysis of paper properties showed that addition of 20% LCMF to a standard TMP furnish improved tensile strength index by 15%. The LCMF-containing papers were also more brittle (less elongation) than the other paper sheets in this study. Similar tensile strength index was also obtained for TMP fines treated by sulphonation followed by homogenisation.
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| 55. |
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| 56. |
- Byass, Peter
(author)
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The unequal world of health data
- 2009
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In: PLoS Medicine. - : Public Library of Science. - 1549-1277 .- 1549-1676. ; 6:11, s. e1000155-
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Journal article (peer-reviewed)
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| 57. |
- Denvall, Verner, 1951-
(author)
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Innovations and problem-solving : a comparative study
- 2011
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In: European Journal of Social Work. - : Informa UK Limited. - 1369-1457 .- 1468-2664. ; 14:3, s. 307-321
-
Journal article (peer-reviewed)abstract
- This article explores the practical implementation of two innovative projects in Denmark and Sweden. The research is motivated by the high political interest in innovations as a modern quick fix to societal problems. Innovations are regarded as an all-round solution; however, research has mainly been focused on technical and economic factors without considering social problem solving. Utilizing ethnographic methodology, the study reveals that the same innovative process solves problems on one structural level, but creates new problems on another. Faith is generally seen as an important element of innovations geared to social problem solving. Results show that faith is bound to certain structural levels and that a given innovative process runs the risk of creating conflicting perceptions at different levels. The research demonstrates the importance of including components such as value differences, conflicts of interest, and ideology when promoting innovations and when studying innovative efforts.
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| 58. |
- Denvall, Verner, et al.
(author)
-
Innovations and social problem solving: A comparative study
- 2011
-
In: European Journal of Social Work. - : Informa UK Limited. - 1369-1457 .- 1468-2664. ; 14:3, s. 307-321
-
Journal article (peer-reviewed)abstract
- This article explores the practical implementation of two innovative projects in Denmark and Sweden. The research is motivated by the high political interest for innovations as a modern quick fix to societal problems. Innovations are regarded as an all-round solution; however, research has mainly been focused on technical and economical factors without considering social problem solving. Utilizing ethnographic methodology, the study reveals that the same innovative process solves problems on one structural level, but creates new problems on another. Faith is generally seen as an important element of innovations geared to social problem solving. Results shows that faith is bound to certain structural levels and that a given innovative process runs the risk of creating conflicting perceptions at different levels. The research demonstrates the importance of including components such as value differences, conflicts of interest, and ideology when promoting innovations and when studying innovative efforts.
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| 59. |
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| 60. |
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