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  • Resultat 1-10 av 25
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  • Betzholtz, Per-Eric, et al. (författare)
  • With that diet, you will go far : trait-based analysis reveals a link between rapid range expansion and a nitrogen-favoured diet
  • 2013
  • Ingår i: Proceedings of the Royal Society of London. Biological Sciences. - 0962-8452. ; 280:1750, s. 1-6
  • Tidskriftsartikel (refereegranskat)abstract
    • Recent global change has had a substantial influence on the distribution of organisms, and many species are currently expanding their ranges. To evaluate the underlying processes, long-term data with good geographic resolution are essential. One important but generally overlooked data source is offered by the taxon-specific national catalogues of first provincial records that are kept in many countries. Here, we use such data to quantify trait-based influences on range expansion in Swedish butterflies and moths between 1973 and 2010. Of 282 species meeting pre-defined quality criteria, 170 expanded their northern range margin, with a mean expansion rate of 2.7 km per year. The analyses demonstrate that habitat and diet generalists, forest species and species active during warm conditions have expanded their ranges more rapidly than other species. Notably, range expansion in diet specialists was positively related to a nitrogen-favoured larval diet, an effect not found among oligo- or polyphagous species. In contrast to the general view, this shows that specialist species can undergo rapid range expansion. We suggest that increased areas of nitrogen-rich habitat, and increased availability of a nitrogen-favoured diet, are among the most important drivers of range expansions, potentially having far-reaching consequences for a wide variety of organisms.
  • Kristofferzon, Marja-Leena, et al. (författare)
  • Evaluation of a Swedish version of the Watts Sexual Function Questionnaire (WSFQ) in persons with heart disease : A pilot study
  • 2010
  • Ingår i: European Journal of Cardiovascular Nursing. - 1474-5151. ; 9:3, s. 168-174
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: As part of preparation for a Swedish multicentre study, exploring sexual and married life in patients with myocardial infarction and their partners, a Swedish validated instrument was required.Aims: The aim of this pilot study was to evaluate the validity and reliability of a Swedish version of the Watts Sexual Function Questionnaire (WSFQ) among persons with a heart disease.Methods: A convenience sample of 79 persons (47 men and 32 women) living with a heart disease was recruited from the members of the National Association of Heart and Lung Patients. They completed a Swedish version of the WSFQ on two occasions.Results: Two separate factor analyses each revealed a two-factor structure on both occasions: “Sexual appetite” and “Sexual expectations” with gender-neutral questions and “Sexual sensitiveness” and “Sexual ability” with gender-specific questions. Cronbach's alpha coefficients ranged from 0.48 to 0.86 and test–retest values for all but one question exceeded 0.70.Conclusions: The Swedish version of the WSFQ showed good validity and stability and acceptable internal homogeneity. Extended evaluations of the questionnaire are recommended.
  • Olofsson, Åke, et al. (författare)
  • Speed and accuracy in the first year of reading development : -
  • 2010
  • Ingår i: Seventeenth Annual MeetingSociety for the Scientific Study of Reading, July 7-10, 2010Berlin.
  • Konferensbidrag (refereegranskat)abstract
    • Abstract:Purpose. To provide a detailed description of the development of word recognition during the first year of schooling, with respect to processing speed and decoding accuracy.Method. One year longitudinal study of the first year of reading development in 35 seven year old Swedish children. The study used a computer based measurement procedure with four waves of repeated measurement of reading aloud of single words. The accuracy of word decoding was recorded and analyzed with respect to errors and decoding strategies. Reaction and process times were recorded for reading as well as for rapid naming and letter knowledge. The word material consisted of; (a) very familiar (content and functor) mono syllable simple words;  (b) complex words which occur with high frequency in the early stages of children’s reading schemes; (c) simple one-syllable pseudowords and (d) two-syllable pseudowords. Also a short spelling task was used. Assessment of letter knowledge and phonological awareness was done prior to school entry.Results. The results show a rapid reading development for practically all children and clear evidence for code oriented and phonologically based decoding strategies. At the first three timepoints monosyllable pseudo words were read more correct than simple words. The development of decoding speed was preceded by an increase in accuracy.Conclusions. When learning to read, in the Swedish orthography, the beginning readers rely on phonological skills and letter knowledge rather than using any holistic strategy. The results give no support to the claim of an initial logographic strategy in reading acquisition
  • Philipson, Sarah (författare)
  • A specification of an environment for modern product development
  • 2008
  • Konferensbidrag (refereegranskat)abstract
    • This paper raises the question of how to protect the design of new offerings (products, services and experiences) from unfair competition and plagiarism, already from the very beginning of the design process and how to effectively manage.
  • Philipson, Sarah (författare)
  • Entrepreneurial Learning in Higher Education
  • 2014
  • Ingår i: Proceedings from the 21st Annual International Conference on Advances in Management & 7th International Conference on Social Intelligence, Los Angeles, July 16–19, 2014. .
  • Konferensbidrag (refereegranskat)abstract
    • This article proposes to build a entrepreneurial learning environment for future business professionals, based on a better knowledge about requirements and the economic necessity to build structural capital in higher education.
  • Philipson, Sarah, et al. (författare)
  • From Budapest to Berlin : the role of reputation in the market economy
  • 2013
  • Konferensbidrag (refereegranskat)abstract
    • During a trip from Budapest to Berlin in 1990, Joakim made observations about a grey market trade between Rumanian Roma and Vietnamese guest students in Berlin. It was seemingly inexplicable how the two groups could enter into business relationships without a common language. This paper interprets the observed events and raises fundamental questions about society, market economy, and democracy. It discusses the role of trust and reputation as the prerequisite of conditional trust and suggest that there are now validation for classical economic value theory and for relationship management. This has important consequences for sociology, business administration, and economics.
  • Philipson, Sarah, et al. (författare)
  • Is customer involvement in product development driven by high product complexity and/or high production cost?
  • 2009
  • Konferensbidrag (refereegranskat)abstract
    • This study of the relation between two factors that might explain why the Swedish wood component manufacturing industry use customer involvement in product development to a very small extent, failed to give high complexity and high production cost interesting predictory value in explaining the limited role of customer involvement in product development.In a complementary study, although with a small response rate, of the much more complex machine industry for the wood component industry even indicated that product complexity negatively impact customer involvement.
  • Philipson, Sarah (författare)
  • Pattern-finding in qualitative data : a suggested method of making data analyzable
  • 2012
  • Konferensbidrag (refereegranskat)abstract
    • I have examined or tutored some 500 bachelor theses and some 100 master theses at several Swedish universities. Over the past 20 years Swedish secondary school graduates has become less and less apt in mathematics, Mullis, I.V.S. et al. (2009). Due to this development university students mostly chose to make qualitative studies, irrespective if this is the best choice to study the research question on not. Most of them don’t even make good qualitative studies.To help them get good qualitative use of their empirical material I have developed the following method. It is suitable for studies based on interviews, focus groups and observations. It is suitable both for deductive and abductive research, well grounded theory, and critical studies. As the dataset grows, the method becomes cumbersome, which I don not consider is a big problem, as big qualitative datasets would preferably be analyzed by non-parametric statistics, rather than the iterative interpreting qualitative method I suggest here. 
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