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- Haugen, H. A., et al.
(författare)
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CCS in the Skagerrak/Kattegat area
- 2011
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Ingår i: Energy Procedia. 10th International Conference on Greenhouse Gas Control Technologies; Amsterdam; 19-23 September 2010. - : Elsevier BV. - 1876-6102. ; 4, s. 2324-2331
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Konferensbidrag (refereegranskat)abstract
- This paper presents an ongoing project with the aim to assess a CO 2 infrastructure in the Skagerrak/Kattegat region (the sea bordered by north of Denmark, south coast of Norway and the west coast of Sweden). The area comprises 10-12 CO2 emission sources of more than 0.5 Mt/year. The geological and geophysical assessment of CO2 storage potential in the described area as well as reservoir modelling and simulations are performed in work package (WP) 1. The results from WP1 are used in the other work packages. Candidate storage sites are matched with those point sources in the region that are technically and economically feasible for CO2 capture, together with an assessment of the connecting infrastructure needs. WP 2 focuses on identifying optimal technological CO2 infrastructure solutions. Sources-to-sink solutions are in the process of being developed based on input from WP1 and WP3. Assessment of the build-up of a complete CCS infrastructure from a system perspective is the overall focus of WP 3, covering economical, practical and judicial aspects. The project group explores the economic potential for capture at each individual site including looking at other CO2 mitigation options and propose relevant capture technology with cost estimations. Dissemination of project results is organized in a separate work package, WP4.
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- Thyberg, Ingrid, et al.
(författare)
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Potential of the HAQ score as clinical indicator suggesting comprehensive multidisciplinary assessments : the Swedish TIRA cohort 8 years after diagnosis of RA
- 2012
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Ingår i: Clinical Rheumatology. - : Springer Science and Business Media LLC. - 0770-3198 .- 1434-9949. ; 31:5, s. 775-783
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Tidskriftsartikel (refereegranskat)abstract
- This study explores the potential of the health assessment questionnaire (HAQ) score as a clinical indicator that can be used to suggest comprehensive multidisciplinary assessments, by relating it to more general aspects of disability. In a cohort of 132 patients with early RA (mean age 55, 68% women), 28 joint count Disease Activity Scores (DAS-28), HAQ, and Short Form 36 (SF-36) scores were registered at annual follow-up visits 8 years after diagnosis. The patients were tentatively sub-grouped into a high-HAQ group (HAQ ≥1 at the 8-year follow-up) and a low-HAQ group. The high-HAQ group, comprising 36% of the cohort, had a higher mean HAQ score at inclusion and beyond at all visits compared to the low-HAQ group, and 24% of all individual patients in the high-HAQ group had a HAQ score ≥1 at inclusion. Although the DAS-28 improved in both groups, patients in the high-HAQ group also had significantly more persistent disability according to the SF-36: five scales at each follow-up visit and all eight scales at the majority of the visits. Individual RA patients with HAQ ≥1 probably have considerable persistent disabilities according to the SF-36. The HAQ score could be used as a clinical indicator suggesting comprehensive multidisciplinary assessments of the components of disability and corresponding interventions, in addition to the established use of HAQ at group levels and in parallel with the medication strategy based on DAS-28.
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- Tjernberg, L O, et al.
(författare)
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Amyloid beta-peptide polymerization studied using fluorescence correlation spectroscopy
- 1999
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Ingår i: Chemistry and Biology. - 1074-5521 .- 1879-1301. ; 6:1, s. 53-62
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Tidskriftsartikel (refereegranskat)abstract
- Background: The accumulation of fibrillar deposits of amyloid beta-peptide (A beta) in brain parenchyma and cerebromeningeal blood vessels is a key step in the pathogenesis of Alzheimer's disease. In this report, polymerization of A beta was studied using fluorescence correlation spectroscopy (FCS), a technique capable of detecting small molecules and large aggregates simultaneously in solution. Results: The polymerization of A beta dissolved in Tris-buffered saline, pH 7.4, occurred above a critical concentration of 50 mu M and proceeded from monomers/dimers into two discrete populations of large aggregates, without any detectable amount of oligomers. The aggregation showed very high cooperativity and reached a maximum after 40 min, followed by an increase in the amount of monomers/dimers and a decrease in the size of the large aggregates. Electron micrographs of samples prepared at the time for maximum aggregation showed a mixture of an amorphous network and short diffuse fibrils, whereas only mature amyloid fibrils were detected after one day of incubation. The aggregation was reduced when A beta was incubated in the presence of A beta ligands, oligopeptides previously shown to inhibit fibril formation, and aggregates were partly dissociated after the addition of the ligands. Conclusions: The polymerization of A beta is a highly cooperative process in which the formation of very large aggregates precedes the formation of fibrils. The entire process can be inhibited and, at least in early stages, partly reversed by A beta ligands.
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- Björk, Mathilda, et al.
(författare)
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Differences in activity limitation, pain intensity, and global health in patients with rheumatoid arthritis in Sweden and the USA : a 5-year follow-up
- 2011
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Ingår i: Scandinavian Journal of Rheumatology. - : Informa Healthcare. - 0300-9742 .- 1502-7732. ; 40:6, s. 428-432
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Tidskriftsartikel (refereegranskat)abstract
- Objective: In this study we compared activity limitations, pain intensity, and global health in patients with rheumatoid arthritis (RA) in Sweden and the USA and aimed to determine whether nationality is associated with these outcomes. Methods: We used longitudinal data from the Swedish TIRA project (n = 149) and the University of California, San Francisco (UCSF) RA panel study (n = 85). Data were collected annually concerning use of medications [disease-modifying anti-rheumatic drugs (DMARDs), biologics, and corticosteroids], morning stiffness, number of swollen joints, and number of painful joints. Three self-reported outcome measures were examined: pain intensity measured on a 0-100 visual analogue scale (VAS), activity limitation according to the Health Assessment Questionnaire (HAQ), and global health. To analyse the data, the Students t-test, the chi(2)-test, and the generalized estimating equation (GEE) method were used. Results: Nationality was significantly related to HAQ score and pain intensity, even after adjustment for covariates. The patients in the TIRA cohort reported a lower HAQ score and a higher pain intensity than the patients in the UCSF cohort. Nationality was not related to global health. Conclusion: Patients with RA should be assessed with awareness of the psychosocial and cultural context because disability seems to be affected by nationality. Further knowledge to clarify how a multinational setting affects disability could improve the translation of interventions for patients with RA across nationalities.
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