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- Bobylev, A. V., et al.
(författare)
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A DSMC method for the Landau-Fokker-Planck equation
- 2007
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Ingår i: Rarefied Gas Dynamics (Proc. 25th International Symposium on Rarefied Gas Dynamics). ; , s. 479-483
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Konferensbidrag (refereegranskat)abstract
- A simple and fast algorithm for simulation of collisional processes based on the Landau equation is presented. The simulation scheme is suitable for three-dimensional problems, where the work requirements for deterministic methods may be prohibitively large when the number of particles grows. The algorithm is verified for Maxwell particles and thereafter applied to particles with Coulomb interaction. A series of numerical experiments related to various spatially homogeneous problems is presented. In order to study the accuracy of the method and the optimal choice of its parameters, comparisons with results obtained by fully conservative finite difference schemes are performed. The DSMC scheme is in turn used to verify the accuracy of the standard approximations with isotropic Rosenbluth potentials in two-dimensional finite difference computations.
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- Hu, F.Z., et al.
(författare)
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Mapping of an autosomal dominant gene for Dupuytren's contracture to chromosome 16q in a Swedish family
- 2005
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Ingår i: Clinical Genetics. - Oxford : Wiley. - 0009-9163 .- 1399-0004. ; 68:5, s. 424-429
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Tidskriftsartikel (refereegranskat)abstract
- Dupuytren's contracture (DC) (OMIM 126900) is the most common connective tissue disease of mankind and has both heritable and sporadic forms. The inherited form is most frequently observed among the xanthochroi peoples of Northern Europe where its most common manifestations are thickening of the palmar fascia and contracture of the fingers. We ascertained a five-generation Swedish family in which DC is inherited in an autosomal dominant manner with high, but incomplete, penetrance by the end of the fifth decade. Blood was collected from all affected and informative unaffected family members for the performance of a genome-wide scan at a resolution of approximately 8 cM for all autosomes. Linkage was established to a single 6 cM region between markers D 16S419 and D 16S3032 on chromosome 16. A maximal two-point logarithm of odds (LOD) score of 3.18 was achieved at microsatellite marker D16S415 with four other markers in the region producing LODs of > 1.5. © Blackwell Munksgaard, 2005.
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| 5. |
- Håkansson, Anders P, et al.
(författare)
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A folding variant of alpha-lactalbumin with bactericidal activity against Streptococcus pneumoniae
- 2000
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Ingår i: Molecular Microbiology. - : Wiley. - 0950-382X .- 1365-2958. ; 35:3, s. 589-600
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Tidskriftsartikel (refereegranskat)abstract
- This study describes an alpha-lactalbumin folding variant from human milk with bactericidal activity against antibiotic-resistant and -susceptible strains of Streptococcus pneumoniae. The active complex precipitated with the casein fraction at pH 4.6 and was purified from casein by a combination of anion exchange and gel chromatography. Unlike other casein components, the active complex was retained on the ion-exchange matrix and eluted only with high salt. The eluted fraction showed N-terminal and mass spectrometric identity with human milk alpha-lactalbumin, but native alpha-lactalbumin had no bactericidal effect. Spectroscopic analysis demonstrated that the active form of the molecule was in a different folding state, with secondary structure identical to alpha-lactalbumin from human milk whey, but fluctuating tertiary structure. Native alpha-lactalbumin could be converted to the active bactericidal form by ion-exchange chromatography in the presence of a cofactor from human milk casein, characterized as a C18:1 fatty acid. Analysis of the antibacterial spectrum showed selectivity for streptococci; Gram-negative and other Gram-positive bacteria were resistant. The folding variant of alpha-lactalbumin is a new example of naturally occurring molecules with antimicrobial activity.
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- Liljedahl, Sophie I., 1977, et al.
(författare)
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Life experienced as worth living and beyond: a qualitative study of the pathways to recovery and flourishing amongst individuals treated for borderline personality disorder
- 2023
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Ingår i: BMC Psychiatry. - 1471-244X. ; 23:1
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Tidskriftsartikel (refereegranskat)abstract
- Background: Dialectical Behaviour Therapy (DBT) is recognized as a leading evidence-based treatment, effective in reducing symptoms of borderline personality disorder (BPD), as well as co-occurring clinical syndromes. However, symptom remission may not be the same as a life experienced as worth living. The purpose of the study was to understand, from the perspective of individuals with lived experience, the concepts of recovery, life experienced as worth living and flourishing after treatment for BPD, and to describe the pathways to wellness after symptom remission. Methods: Semi-structured interviews were conducted with nine adult women previously diagnosed with BPD, co-occurring clinical syndromes and severe self-harm behaviour who self-identified as recovered for a minimum of two years, recruited from a network for individuals with lived experience. The average duration of recovery was 5.7 years with a range from 2 to 10 + years. Data were analysed using thematic analysis. Results: Four main themes and 14 subthemes were generated from our analyses. Main themes indicated that loved ones helped recovery and to create a life worth living, that participants identified as recovered and as healthy and beyond, and that becoming well is a long process associated in part with reclaiming a healthy identity. Participants defined recovery as separate but related to a life worth living, which in turn was separate but related to being healthy and having lives they described as being beyond health and well-being. The wellness process was described as lengthy and non-linear, including setbacks that with time no longer derailed daily life. A proposed theoretical model depicting the wellness process over time from symptom remission to the experience of a life beyond health and wellness is presented. Conclusions: This qualitative study contributes knowledge of what a life experienced as worth living means, as well as how wellness progressed into flourishing for some participants within a sample of individuals with lived experience. Our findings may inform treatment development that targets more than symptom reduction, which in turn may shorten trajectories from symptom remission to health, wellness, and flourishing.
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