| 1. |
- Anderson, Leif G., et al.
(författare)
-
The effect of the Siberian tundra on the environment of the shelf seas and the Arctic Ocean
- 1999
-
Ingår i: Ambio. - 0044-7447. ; 28:3, s. 270-280
-
Tidskriftsartikel (refereegranskat)abstract
- The Tundra Ecology -94 expedition investigated inflow of inorganic and organic carbon to the shelf seas by river runoff, and its transformation by biochemical processes in seawater and sediment. In addition, anthropogenic radionuclides, 137Cs, 90Sr, and 239,240Pu, were studied in water and sediments. The distribution of dissolved inorganic carbon indicates that the majority of the Ob and Yenisey discharges flow into the Laptev Sea before entering the central Arctic Ocean. The sediment study shows that there is a marked difference in benthic oxygen uptake, efflux of dissolved inorganic carbon and nutrients between localities. 137Cs activity from the Chernobyl accident is 30% in the Barents, Kara, and Laptev Seas. 137Cs increased from 5-8 Bq m-3 in Barents Sea, 5-13 Bq m-3 in the Kara Sea to 8-15 Bq m-3 in the Laptev Sea, but with locally low concentrations at the river mouths. Corresponding values for 90Sr were 2.5, 3, and 4 Bq m-3, respectively.
|
|
| 2. |
- Höök, Kristina, et al.
(författare)
-
Spatial or narrative: a study of the Agneta and Frida system
- 1999. - 1
-
Konferensbidrag (refereegranskat)abstract
- We propose that analysing interviews with subjects who have been exposed to anthropomorphic characters from a metaphorical point of view can provide insights into how characters in the interface are perceived. In a study of the Agneta & Frida system (two characters that comment contents of web pages in an ironic, humorous manner) we found that subjects who used Agneta & Frida used more narrative verbs and adverbs than users who only browsed the web pages. In the latter case, more spatial verbs and adverbs were used. This may imply that normal web browsing is perceived as navigation through a space, while Agneta & Frida provides for a more narrative experience.
|
|
| 3. |
|
|
| 4. |
|
|
| 5. |
|
|
| 6. |
|
|
| 7. |
- Penha-Gonçalves, Carlos, et al.
(författare)
-
Type 1 diabetes and the control of dexamethazone-induced apoptosis in mice maps to the same region on chromosome 6
- 1995
-
Ingår i: Genomics. - : Elsevier. - 0888-7543 .- 1089-8646. ; 28:3, s. 398-404
-
Tidskriftsartikel (refereegranskat)abstract
- Quantitative trait loci mapping was used to identify the chromosomal location of genes that contribute to increase the resistance to apoptosis induced in immature CD4+8+ thymocytes. An F2 intercross of the nonobese diabetic (NOD) mouse (displaying an apoptosis-resistance phenotype) and the C57BL/6 mouse (displaying a nonresistance phenotype) was phenotypically analyzed and genotyped for 32 murine microsatellite polymorphisms. Maximum likelihood methods identified a region on the distal part of chromosome 6 that is linked to dexamethazone-induced apoptosis (lod score = 3.46) and accounts for 14% of the phenotypic variation. This chromosomal region contains the diabetes susceptibility locus Idd6, suggesting that the apoptosis-resistance phenotype constitutes a pathogenesis factor in IDDM of NOD mice.
|
|
| 8. |
- Persson, Kristina Bränd, et al.
(författare)
-
Välkommet bidrag till diskussionen.
- 1999
-
Ingår i: Socialmedicinsk Tidskrift. - 0037-833X. ; 76:2, s. 201-203
-
Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
|
|
| 9. |
- Persson, Kristina, et al.
(författare)
-
Calcium binding to the first EGF-like module of human factor IX in a recombinant fragment containing residues 1-85. Mutations V46E and Q50E each manifest a negligible increase in calcium affinity
- 1998
-
Ingår i: FEBS Letters. - 1873-3468. ; 421:2, s. 100-104
-
Tidskriftsartikel (refereegranskat)abstract
- The first EGF-like module of human coagulation factor IX contains a single functionally important calcium ion binding site. We have now shown the dissociation constant for this site to be approximately 160 microM in a recombinant protein fragment consisting of residues 1-85 in human fIX. This represents a approximately 10-fold increase in affinity as compared with the isolated EGF module (residues 46-85). The Gla module (here with Glu instead of Gla) thus increases the affinity of the EGF module calcium ion binding site. Each of two mutations, V46E and Q50E, made to investigate whether the extra negative charge would increase the affinity of the calcium binding site manifested a negligible increase in affinity.
|
|
| 10. |
|
|
