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| 2. |
- Lanke, E., et al.
(författare)
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Co-segregation of the PROS1 locus and protein S deficiency in families having no detectable mutations in PROS1
- 2004
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Ingår i: Journal of Thrombosis and Haemostasis. - : Wiley-Blackwell. - 1538-7933 .- 1538-7836. ; 2:11, s. 1918-1923
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Tidskriftsartikel (refereegranskat)abstract
- Inherited deficiency of protein S constitutes an important risk factor of venous thrombosis. Many reports have demonstrated that causative mutations in the protein S gene are found only in approximately 50% of the cases with protein S deficiency. It is uncertain whether the protein S gene is causative in all cases of protein S deficiency or if other genes are involved in cases where no mutation is identified. The aim of the current study was to determine whether haplotypes of the protein S gene cosegregate with the disease phenotype in cases where no mutations have been found. Eight protein S-deficient families comprising 115 individuals where previous DNA sequencing had failed to detect any causative mutations were analyzed using four microsatellite markers in the protein S gene region. Co-segregation between microsatellite haplotypes and protein S deficiency was found in seven of the investigated families, one family being uninformative. This suggests that the causative genetic defects are located in or close to the protein S gene in a majority of such cases where no mutations have been found.
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| 3. |
- Marton, Jan, 1964, et al.
(författare)
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Externredovisning
- 2004
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Bok (övrigt vetenskapligt/konstnärligt)
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| 4. |
- Abenius, Erik, et al.
(författare)
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A General Approach for Time-Domain Simulation of Waveguides in 3D
- 2004
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Ingår i: Proc. EMB 04, Computational Electromagnetics. - Göteborg, Sweden : Department of Electromagnetics, Chalmers University of Technology. - 9163160765 ; , s. 220-226
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)
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| 6. |
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| 7. |
- Andersson, Elisabeth, et al.
(författare)
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Effects of river fragmentation on plant dispersal and riparian flora
- 2000
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Ingår i: Rivers Research and Applications. - 1535-1459 .- 1535-1467. ; 16:1, s. 83-89
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Tidskriftsartikel (refereegranskat)abstract
- We evaluated the effects of river fragmentation by dams on hydrochory (i.e. plant dispersal by water) and on plant distribution by comparing two adjacent rivers in northern Sweden, one free-flowing and the other regulated. We collected stranded drift material from both rivers in order to quantify the drift material and its species content. We also estimated the floristic continuity along the two rivers by comparing the drift flora with the riparian flora further upstream. The drift amount deposited on the riverbank, its species richness and its contribution to the species pool were higher in the free-flowing than in the regulated river. The floristic continuity was also higher in the free-flowing than in the regulated river.
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| 8. |
- Andersson, Elisabeth, et al.
(författare)
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Plant dispersal in boreal rivers and its relation to the diversity of riparian flora
- 2000
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Ingår i: Journal of Biogeography. - : Wiley. - 0305-0270 .- 1365-2699. ; 27:5, s. 1095-1106
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Tidskriftsartikel (refereegranskat)abstract
- Aim The paper has four major objectives: (1) to determine whether diaspore mimics accurately represent dispersal dynamics of real diaspores in a free-flowing river; (2) to estimate distance travelled and reasons for stranding of floating diaspores along a free-flowing river; (3) to test if species composition and seedling recruitment vary with the ability of the riverbank to trap waterborne drift; and (4) to compare diaspore dispersal in a free-flowing river with that in a regulated river where current velocity has been reduced. Location The field work was conducted in two 7th-order boreal rivers in northern Sweden, the free-flowing Vindel River and the regulated Ume River. Methods We performed a series of dispersal experiments. We tested the usefulness wooden cubes of diaspore mimics for performing dispersal experiments by releasing cubes and achenes of Helianthus annuus and compare their dispersal patterns in the free-flowing Vindel River. We used the cubes to identify 50-m long sections along the river with different trapping capacity, i.e. the number of stranded diaspore mimics within a 50-m section. We then related the number of stranded diaspore mimics to the vascular plant flora, the proportions of species with long or short floating times (i.e. more than or less than 2 days, respectively), the number of seedlings, and to environmental variables within the sections. We also released wooden cubes in a run-of-river impoundment to determine the dispersal capacity of diaspores in a regulated river. Results The cubes were useful as diaspore mimics. They dispersed similarly to achenes of H. annuus. The stranding pattern of diaspore mimics was significantly associated with water current. Species richness of vascular plants per 50-m section increased with the number of stranded mimics. Seedling recruitment, and the proportions of species with short-floating and long-floating diaspores, did not vary with the number of stranded mimics. The ability of a river to transport diaspores downstream was strongly reduced by impoundment. Main conclusions We conclude that patterns of species richness of riparian vegetation is in part determined by the ability of the riverbank to trap waterborne diaspores, but differences in floating ability among species did not affect the species composition along free-flowing rivers.
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| 10. |
- Ax, Christian, et al.
(författare)
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Budgetlös styrning eller lös butgetstyrning?
- 2001
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Ingår i: (red.) Herolf O & Westman P; Ekonomistyrning. - Stockholm : Ekerlids Förlag. ; , s. 1-22
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Bokkapitel (övrigt vetenskapligt/konstnärligt)
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