| 1. |
- Jonsson, Annie, et al.
(författare)
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Are certain life histories particularly prone to local extinction?
- 2001
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Ingår i: Journal of Theoretical Biology. - : Elsevier BV. - 0022-5193 .- 1095-8541. ; 209:4, s. 455-463
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Tidskriftsartikel (refereegranskat)abstract
- Using stochastic simulations and elasticity analysis, we show that there are inherent differences in the risk of extinction between life histories with different demographies. Which life history is the most vulnerable depends on which vital rate varies. When juvenile survival varies semelparous organisms with delayed reproduction are the most vulnerable ones, while a varying developmental rate puts a greater threat to semelparous organisms with rapid development. Iteroparous organisms are the most vulnerable ones when adult survival varies. Generally, we do not expect to observe organisms in nature having variation in vital rates that produce a high risk of extinction. Given the results here we therefore predict that iteroparous organisms should show low variation in adult survival. Moreover, we predict that semelparous organisms should show low variation in juvenile survival and low variation in developmental rate. The effect of temporal correlation on extinction risk is most pronounced in organisms with semelparous life histories. © 2001 Academic Press.
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| 2. |
- Olson, Maria, 1969-
(författare)
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Equivalence and "freedom of choice" - Consequences of a changed Policy practice in Sweden
- 2004
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Ingår i: ECER EERA Enacting Equity in Europe: Towards a comparison of equitable practices in different local contexts,2004.
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Konferensbidrag (refereegranskat)abstract
- Equivalence is regarded as a central concept in contemporary Swedish educational policy. Hence, the concept of -equivalence- plays an important role in educational policy-making practice in Sweden. One important aspect in this policy-making is to determine the schools- assignment to bring up democratic citizens. In the 90s equivalence is challenged by another concept, -freedom of choice-. This challenge has consequences for the understanding of what citizen to bring up in the Swedish schools. In this paper I will try out some possible outcomes of a changed conceptual framework in the educational policy practice, when it comes to the political understanding of a democratic citizenship in Sweden.
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| 3. |
- Olson, Maria, 1969-
(författare)
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Textanalys - ett sätt att bygga ett innehållsligt fält för Homo Democraticus?
- 2001
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Ingår i: Samhällets diskurser [Discourses of Society], 2001.
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Konferensbidrag (refereegranskat)abstract
- Aiming to study societal discourses, we need adequate methodological tools. That is analytical ways of seeing and doing in order to clarify the task of scientific interest. One way of doing this is to study the field of education, more precisely, national schools´ assignments to bring up democratic citizens. In this paper I suggest some methodological ways of seeing and doing, in order to bring about such studies.
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| 4. |
- Olson, Maria
(författare)
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Vilka medborgare skulle skolan fostra då? Och nu? Från medborgarfostran för politisk förändring till medborgarfostran för ekonomisk anpassning?
- 2004
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Ingår i: Skolans moraliska och demokratiska praktik. - Linköping : Linköpings universitet. - 9173739995 ; , s. 121-141
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Bokkapitel (populärvet., debatt m.m.)abstract
- I denna text ska jag undersöka hur lärarens och skolans roll som medborgarfostrare beskrivs i två tider då demokratin anses befinna sig i kris, 1940-talet och 1990-talet. Detta görs genom en läsning av de rådande styrdokumenten för den svenska skolan i dessa tider. I läroplaner och andra typer av riktgivande dokument för skolan framträder något av den tids villkor och innebörder av demokrati och av skolans fostransuppdrag i vilket texterna tillkommer. Hur beskrivs skolans medborgarfostrande uppdrag i 40-talets och 90-talets styrdokument? Vilka medborgarkvalitéer lyfts fram som nödvändiga för läraren och skolan att sörja för? Ambitionen i denna text är att sätta dagens läroplan och dess formuleringar för skolans medborgarfostran i relation till efterkrigstidens styrdokument. I syftet att väcka funderingar och vidare diskussioner hos läsaren kring dagens gällande läroplan (Lpo94), tillkommen på 90-talet, med dess framställningar av vilka mål för medborgarfostran som läraren bör arbeta emot.
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| 5. |
- Tajsharghi, Homa, 1968, et al.
(författare)
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Myosin storage myopathy associated with a heterozygous missense mutation in MYH7.
- 2003
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Ingår i: Annals of neurology. - : Wiley. - 0364-5134 .- 1531-8249. ; 54:4, s. 494-500
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Tidskriftsartikel (refereegranskat)abstract
- Myosin constitutes the major part of the thick filaments in the contractile apparatus of striated muscle. MYH7 encodes the slow/beta-cardiac myosin heavy chain (MyHC), which is the main MyHC isoform in slow, oxidative, type 1 muscle fibers of skeletal muscle. It is also the major MyHC isoform of cardiac ventricles. Numerous missense mutations in the globular head of slow/beta-cardiac MyHC are associated with familial hypertrophic cardiomyopathy. We identified a missense mutation, Arg1845Trp, in the rod region of slow/beta-cardiac MyHC in patients with a skeletal myopathy from two different families. The myopathy was characterized by muscle weakness and wasting with onset in childhood and slow progression, but no overt cardiomyopathy. Slow, oxidative, type 1 muscle fibers showed large inclusions consisting of slow/beta-cardiac MyHC. The features were similar to a previously described entity: hyaline body myopathy. Our findings indicate that the mutated residue of slow/beta-cardiac MyHC is essential for the assembly of thick filaments in skeletal muscle. We propose the term myosin storage myopathy for this disease.
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