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| 2. |
- Busk, H., et al.
(författare)
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Cross-cultural translation and adaptation of the Danish version of the Fugl-Meyer assessment for post stroke sensorimotor function
- 2022
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Ingår i: Disability and Rehabilitation. - : Informa UK Limited. - 0963-8288 .- 1464-5165. ; 44:17, s. 4888-4895
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Tidskriftsartikel (refereegranskat)abstract
- Purpose The Fugl-Meyer assessment (FMA) is the most widely used and recommended clinical assessment scale for evaluating sensorimotor impairments in stroke patients, but an official Danish version has not been available. This study aimed to perform a standardized translation and cross-cultural adaptation (TCCA) of the FMA into Danish. Methods First, a comprehensive eight-step TCCA procedure including forward and backward translation and step-wise reviewing by proof-reader and bilingual physiotherapists, to ensure conceptual and semantic equivalence was applied to develop a Danish version of the FMA. Second, inter-rater reliability of the Danish FMA was assessed in 10 subacute stroke patients. Svensson's statistical method designed for rank-based paired ordinal data to identify items showing non-systematic or systematic disagreements in relative position or concentration was used to make further improvements on translation. Results A Danish FMA version was successfully made by the step-wise TCCA procedure. The clinical validation revealed satisfactory to excellent inter-tester reliability across all items (70-100%). Significant systematic disagreement either in position or concentration or both were observed in about 20% of the items. Conclusions The Danish version of the FMA was translated and adapted allowing for a wider standardized use of the FMA in stroke rehabilitation in Denmark.
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| 3. |
- Rosén, P, et al.
(författare)
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The complementary power of pH and lake-water organic carbon reconstructions for discerning the influences on surface waters across decadal to millennial time scales
- 2011
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Ingår i: Biogeosciences. - : Copernicus GmbH. - 1726-4170 .- 1726-4189. ; 8, s. 2717-2727
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Tidskriftsartikel (refereegranskat)abstract
- Lysevatten, a lake in southwest Sweden, has experienced both acidification and recent changes in the amount of lake-water organic carbon (TOC), both causing concern across Europe and North America. A range of paleolimnological tools – diatom-inferred pH, inferred lake-water TOC from visible-near-infrared spectroscopy (VNIRS), multielement geochemistry and pollen analysis, combined with geochemical modeling were used to reconstruct the lake’s chemistry and surroundings back to the most recent deglaciation 12 500 years ago. The results reveal that the recent anthropogenic impacts are similar in magnitude to the longterm variation driven by natural catchment changes and early agricultural land use occurring over centuries and millennia. The combined reconstruction of both lake-water TOC and lithogenic element delivery can explain the major changes in lake-water pH and modeled acid neutralizing capacity during the past 12 500 years. The results raise important questions regarding what precisely comprises “reference” conditions (i.e., free from human impacts) as defined in the European Water Framework Directive.
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| 4. |
- Rosen, P., et al.
(författare)
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The complementary power of pH and lake-water organic carbon reconstructions for discerning the influences on surface waters across decadal to millennial time scales
- 2011
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Ingår i: Biogeosciences. - : Copernicus GmbH. - 1726-4170 .- 1726-4189. ; 8, s. 2439-2466
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Tidskriftsartikel (refereegranskat)abstract
- Lysevatten, a lake in southwest Sweden, has experienced both acidification and recent changes in the amount of lake-water organic carbon (TOC), both causing concern across Europe and North America. A range of paleolimnological tools - diatom-inferred pH, inferred lake-water TOC from visible-near-infrared spectroscopy (VNIRS), multi-element geochemistry and pollen analysis, combined with geochemical modeling were used to reconstruct the lake's chemistry and surroundings back to the most recent deglaciation 12 500 years ago. The results reveal that the recent anthropogenic impacts are similar in magnitude to the long-term variation driven by natural catchment changes and early agricultural land use occurring over centuries and millennia. The combined reconstruction of both lake-water TOC and lithogenic element delivery can explain the major changes in lake-water pH and modeled acid neutralizing capacity during the past 12 500 years. The results raise important questions regarding what precisely comprises "reference" conditions (i.e., free from human impacts) as defined in the European Water Framework Directive.
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| 5. |
- Ek, A S, et al.
(författare)
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A paleolimnological assessment of the effects of post-1970 reductions of sulfur deposition in Sweden
- 2001
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Ingår i: Canadian Journal of Fisheries and Aquatic Sciences. - 0706-652X .- 1205-7533. ; 58:8, s. 1692-1700
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Tidskriftsartikel (refereegranskat)abstract
- Analysis of diatoms in sediment cores from 10 acidic (pH < 6) lakes in southern Sweden shows that eight of the lakes have acidified after 1950, while two lakes have not significantly acidified. However, since the 1970s, sulfur deposition has decreased by 50%, and lake water chemistry monitored since 1983 shows an initial reversal of acidification. However, the diatom data do not indicate that a general recovery in pH has occurred yet. The diatoms show that a small recovery has occurred in only one lake (pH increase from 4.7 to 4.9). The 10 lakes vary in total organic carbon content from 2 to 17 mg.L-1. According to the diatoms, the lakes with high total organic carbon (>9 mg.L-1) have not acidified as much as the lakes with lower total organic carbon (<7 mg.L-1). We ascribe this difference in response to acid deposition to the buffering capacity of organic acids. Knowledge of the role of organic acids when combined with anthropogenic acid deposition is important in predicting responses to decreasing acid deposition and the time scales required for recovery. Paleolimnological methods are shown here to provide valuable information for these purposes as well as to provide a long-term perspective on lake acidity changes needed for the evaluation of recovery.
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| 6. |
- Renberg, I, et al.
(författare)
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Acid rain and acidification of lakes
- 2005
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Ingår i: The physical geography of Fennoscandia. - : Oxford University Press. ; , s. 383-390
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Bokkapitel (refereegranskat)
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| 7. |
- Rosén, P, et al.
(författare)
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Diatom transfer-functions for quantifying past air temperature, pH and total organic carbon concentration from lakes in northern Sweden
- 2000
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Ingår i: Journal of Paleolimnology. - 0921-2728 .- 1573-0417. ; 24:2, s. 109-123
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Tidskriftsartikel (refereegranskat)abstract
- The relationships between diatoms (Bacillariophyceae) in surface sediments of lakes and summer air temperature, pH and total organic carbon concentration (TOC) were explored along a steep climatic gradient in northern Sweden to provide a tool to infer past climate conditions from sediment cores. The study sites are in an area with low human impact and range from boreal forest to alpine tundra. Canonical correspondence analysis (CCA) constrained to mean July air temperature and pH clearly showed that diatom community composition was different between lakes situated in conifer-, mountain birch- and alpine-vegetation zones. As a consequence, diatoms and multivariate ordination methods can be used to infer past changes in treeline position and dominant forest type. Quantitative inference models were developed to estimate mean July air temperature, pH and TOC from sedimentary diatom assemblages using weighted averaging (WA) and weighted averaging partial least squares (WA-PLS) regression. Relationships between diatoms and mean July air temperature were independent of lake-water pH, TOC, alkalinity and maximum depth. The results demonstrated that diatoms in lake sediments can provide useful and independent quantitative information for estimating past changes in mean July air temperature (R-jack(2) = 0.62, RMSEP = 0.86 degrees C; R-2 and root mean squared error of prediction (RMSEP) based on jack-knifing), pH (R(j)(2)ack = 0.61, RMSEP = 0.30) and TOC (R-jack(2) = 0.49, RMSEP = 1.33 mg l(-1)). The paper focuses mainly on the relationship between diatom community composition and mean July air temperature, but the relationships to pH and TOC are also discussed.
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