| 31. |
- Brändström, Sture, et al.
(författare)
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Developing distance music education in arctic Scandinavia : electric guitar teaching and master classes
- 2012
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Ingår i: Music Education Research. - : Informa UK Limited. - 1461-3808 .- 1469-9893. ; 14:4, s. 448-456
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Tidskriftsartikel (refereegranskat)abstract
- The purpose of this article was to present the project Vi r Music, with a focus on electric guitar teaching (Case 1) and master classes (Case 2). What were the benefits and shortcomings in the two cases and how did online teaching differ from face-to-face teaching? A guitar teacher with a specialisation in jazz music introduced distance teaching to three of his students. Under supervision the students taught upper-secondary students living 290 km from the university. The guitar lessons were held with the use of Skype. In the project, 11 distance master classes were also studied. The devices used were a video-conference system, external microphones and speakers, and 50–52′′ TV screens. The methods for data collection in both cases were above all qualitative interviews with teachers and students and to some degree observation of the teaching sessions. The overall impression from the study was that teachers and students seemed to consider the online teaching in the project a positive experience. The informants looked upon the distance-learning situation as a fruitful complement to face-to-face teaching. Because of the time delay, the most difficult part of the online teaching was playing together or marking the rhythm. The results suggested that video-conference teaching is more intensive than face-to-face teaching and requires both thorough planning and readiness to improvise during the lesson.
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| 32. |
- Brändström, Sture, et al.
(författare)
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Distance Music Education in Northern Europe
- 2010
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- The name of the project we are going to present is Vi r Music (www.vi-r-music.blogspot.com/). The aim of the project is to create a network that will start researching the possibilities for virtual music education at different levels. The Swedish part of the project consists of masterclasses, electric guitar tuition and vocal tuition. Some preliminary results: In distance education there are several technical equipments added to the traditional music education context. We have found that 30 minutes lessons are optimal concerning distance tuition. Try to use rooms with calm visual backgrounds and without too much echo.
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| 33. |
- Brändström, Sture, et al.
(författare)
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The relevance of distributed master classes
- 2011
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Ingår i: Musik och kunskapsbildning. - Göteborg : Konstnärliga fakulteten Göteborgs universitet. - 9789197847629 ; , s. 39-47
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Bokkapitel (övrigt vetenskapligt/konstnärligt)
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| 34. |
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| 35. |
- Brändström, Sture, et al.
(författare)
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Två musikpedagogiska fält : en studie om kommunal musikskola och musiklärarutbildning
- 1995
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- The thesis consists of two parts. One is directed towards municipal music schools, and one deals with music teacher education at university level. The purpose was to investigate the recruitment to these two educations, and to describe and explain how different student groups perceived and used their education. Five empirical studies have been accomplished, and central questions were: which deliberate and non-deliberate choices of musical activities are made by children and music students, and how are these choices affected by socio-economical, geographical and gender prerequisites.Theoretically, the first part of the thesis was based on the educational sociology of Pierre Bourdieu and on previous empirical studies in music pedagogy. The first empirical study was directed towards the recruitment of pupils to the municipal music school in Piteå (n=1085). The study showed that two out of three pupils are girls. Furthermore, it was twice as common among children of higher employees and university graduates to study at the music school than among children with working class backgrounds. The second empirical study was an interview with children, 12-13 years of age (n=369). The results indicated that boys and girls understand and use music and music education in significantly different ways. Furthermore, differences related to socioeconomic background, musical background and residential area were also shown.The second part of the thesis begins with a summary of the origin and scientific basis of Swedish music pedagogy, followed by an investigation regarding recruitment to the music teacher education at the School of Music in Piteå (n=177). The investigation indicated that recruitment is socially biased, similar to that of the municipal music school. One third of the music teacher students were recruited from families where one of the parents worked as a teacher. One out of three students came from homes where religion was an important part of family life. In an interview-study with 60 music teacher students, differences related to gender and educational orientation arose in how students looked upon and used their education. The study showed two attitudes to music and music education, which were linked to the following concepts: musician code and teacher code. In connection with these concepts, three action strategies could be identified: navigation, revolt, and adjustment. These strategies were interpreted as an expression of the tension between the demands of the education and the individuals' wish to have his or her interests and needs met. The dissertation concludes with a project called "Self-formulated goals and self-evaluation in music education" and a short forward-looking discussion pertaining to questions that have been generated throughout the entire research process.
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| 36. |
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| 37. |
- Cassel, Anna, et al.
(författare)
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Effects of population size and food stress on fitness-related characters in the scarce heath, a rare butterfly in Western Europe
- 2001
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Ingår i: Conservation Biology. - : Blackwell Science Publishing. - 0888-8892 .- 1523-1739. ; 15:6, s. 1667-1673
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Tidskriftsartikel (refereegranskat)abstract
- Abstract: Knowledge about the effects of inbreeding in natural populations is scarce, especially in invertebrates. We analyzed to what extent fitness-related traits in the scarce heath ( Coenonympha hero), a butterfly, are affected by population size and isolation and whether differences in food quality influence these effects. We categorized nine populations as either large or small and isolated. Full-sib groups of offspring from 27 females were followed under seminatural conditions. Because of increased zygote mortality, egg hatchability was significantly lower in the small and isolated populations than in the large ones. Population category had no effect on larval weight under optimal conditions, but weight was significantly lower in the small-isolated category with low food quality. The effects of inbreeding can thus be hidden when conditions are benign but can appear under stress. Survival also differed significantly between population categories, and larval developmental time tended to be longer in the small-isolated category, irrespective of food conditions. We suggest that the differences in fitness between offspring from large and small isolated populations are at least partly due to inbreeding. This adds a further threat to a species that is already suffering from decreasing population sizes and increasing isolation among populations.
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| 38. |
- Dinca, Vlad, et al.
(författare)
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Reproductive isolation and patterns of genetic differentiation in a cryptic butterfly species complex
- 2013
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Ingår i: Journal of Evolutionary Biology. - : Wiley. - 1010-061X .- 1420-9101. ; 26:10, s. 2095-2106
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Tidskriftsartikel (refereegranskat)abstract
- Molecular studies of natural populations are often designed to detect and categorize hidden layers of cryptic diversity, and an emerging pattern suggests that cryptic species are more common and more widely distributed than previously thought. However, these studies are often decoupled from ecological and behavioural studies of species divergence. Thus, the mechanisms by which the cryptic diversity is distributed and maintained across large spatial scales are often unknown. In 1988, it was discovered that the common Eurasian Wood White butterfly consisted of two species (Leptidea sinapis and Leptidea reali), and the pair became an emerging model for the study of speciation and chromosomal evolution. In 2011, the existence of a third cryptic species (Leptidea juvernica) was proposed. This unexpected discovery raises questions about the mechanisms preventing gene flow and about the potential existence of additional species hidden in the complex. Here, we compare patterns of genetic divergence across western Eurasia in an extensive data set of mitochondrial and nuclear DNA sequences with behavioural data on inter- and intraspecific reproductive isolation in courtship experiments. We show that three species exist in accordance with both the phylogenetic and biological species concepts and that additional hidden diversity is unlikely to occur in Europe. The Leptidea species are now the best studied cryptic complex of butterflies in Europe and a promising model system for understanding the formation of cryptic species and the roles of local processes, colonization patterns and heterospecific interactions for ecological and evolutionary divergence.
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| 39. |
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| 40. |
- Ekström, Magnus, et al.
(författare)
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Oral corticosteroid use, morbidity and mortality in asthma: A nationwide prospective cohort study in Sweden
- 2019
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Ingår i: Allergy: European Journal of Allergy and Clinical Immunology. - : Wiley. - 0105-4538 .- 1398-9995. ; 74:11, s. 2181-2190
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Tidskriftsartikel (refereegranskat)abstract
- Background: Patterns and determinants of long-term oral corticosteroid (OCS) use in asthma and related morbidity and mortality are not well-described. In a nationwide asthma cohort in Sweden, we evaluated the patterns and determinants of OCS use and risks of OCS-related morbidities and mortality. Methods: Data for 217 993 asthma patients (aged ≥ 6 years) in secondary care were identified between 2007 and 2014 using Swedish national health registries. OCS use at baseline was categorized: regular users (≥5 mg/d/y; n = 3299; 1.5%); periodic users (>0 but <5 mg/d/y; n = 49 930; 22.9%); and nonusers (0 mg/d/y; n = 164 765; 75.6%). Relative risks of becoming a regular OCS user and for morbidity and mortality were analysed using multivariable Cox regression. Results: At baseline, 24% of asthma patients had used OCS during the last year and 1.5% were regular users. Of those not using OCS at baseline, 26% collected at least one OCS prescription and 1.3% became regular OCS users for at least 1 year during the median follow-up of 5.3 years. Age at asthma diagnosis, increasing GINA severity and Charlson Comorbidity Index were associated with regular OCS use. Compared to periodic and non-OCS use, regular use was associated with increased incidence of OCS-related morbidities and greater all-cause mortality, adjusted HR 1.34 (95% CI 1.24-1.45). Conclusions: Oral corticosteroids use is frequent for asthma patients, and many are regular users. Regular OCS use is associated with increased risk of morbidity and mortality. These findings indicate that there is a need of other treatment options for patients with severe asthma who are using regular OCS. © 2019 The Authors Allergy Published by John Wiley & Sons Ltd
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