| 1. |
- Fagerström, Linda, 1973-
(author)
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The Engineer and the Avant-Garde : Concrete Artists in Sweden
- 2019
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In: A Cultural History of the Avant-garde in the Nordic Countries 1925-1950. - Leiden : Brill Academic Publishers. - 9789004366794 - 9789004388291 ; , s. 499-516
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Book chapter (peer-reviewed)abstract
- A Cultural History of the Avant-Garde in the Nordic Countries 1925-1950 is the first publication to deal with the avant-garde in the Nordic countries in this period. The essays cover a wide range of avant-garde manifestations: literature, visual arts, theatre, architecture and design, film, radio, body culture and magazines. It is the first major historical work to consider the Nordic avant-garde in a transnational perspective that includes all the arts and to discuss the role of the avant-garde not only within the aesthetic field but in a broader cultural and political context: the pre-war and wartime responses to international developments, the new cultural institutions, sexual politics, the impact of refugees and the new start after the war.
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| 2. |
- Gustavsson, Bengt, et al.
(author)
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Functional analysis of a variant of the thyrotropin receptor gene in a family with Graves' disease
- 1995
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In: Molecular and Cellular Endocrinology. - 0303-7207 .- 1872-8057. ; 111:2, s. 167-173
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Journal article (peer-reviewed)abstract
- Nucleotide sequence analysis of PCR fragments corresponding to the TSH-receptor (TSHR) amplified from genomic DNA collected from the four members of a family, two of which had Graves' thyrotoxicosis, revealed a nucleotide substitution in the first position of codon 36 of the TSH-receptor gene in the two patients. The nucleotide substitution was from G to C, leading to a 36D-->36H change (D36H) in the predicted amino acid sequence of the receptor. The altered sequence was also found in DNA obtained from their mother, but not in DNA from their father. We stably expressed the two receptor variants in NIH 3T3 cells, by transfection of cDNA encoding the wildtype (WT) and D36H variants of the TSHR. Neither the binding of 125I-TSH nor the responsiveness to TSH measured as cAMP formation, appeared to be different in the TSHR-D36H compared to the TSHR-WT. Furthermore, the D36H-receptor also became desensitized when exposed to TSH as did the WT-receptor.
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| 3. |
- Gustavsson, Börje
(author)
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Fönstermontage
- 2009
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Reports (peer-reviewed)
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| 4. |
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| 5. |
- Persson, Roger, et al.
(author)
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Trait anxiety and modeled exposure as determinants of Self-Reported Annoyance to Sound, Air Pollution and Other Environmental Factors in the home
- 2007
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In: International Archives of Occupational and Environmental Health. - : Springer Science and Business Media LLC. - 1432-1246 .- 0340-0131. ; 81:2, s. 179-191
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Journal article (peer-reviewed)abstract
- Objectives We examined to what degree annoyance ratings to noise, air pollution and other common environmental factors in the home environment could be considered to mirror personality disposition in terms of habitual anxiety level and, when appropriate, objectively modeled noise and nitrogen emission (NOx). Methods A trait anxiety scale was introduced in a cross-sectional public health survey with 2,856 respondents. Of these, 705 had self-reported asthma and the rest constituted gender-matched referents. Annoyance to ten specific factors in the residential environment, mainly focusing on source-specific noise and air pollution, was assessed on a six-point likert scale. A-weighted energy equivalent continuous sound pressure level during a full day (24 h; L (Aeq,24)) as well as annual average NOx levels (mu g/m(3)) at the residential address were modeled with high resolution, using a road data base and a detailed emission data base for NOx. Results The two most prevalent complaints were annoyance to traffic noise and sounds from neighbors, which was reported by about 8% of the participants. Unadjusted logistic regression analyses using the continuous trait anxiety score as a predictor showed positive associations with ratings of annoyance from total traffic noise, sounds from neighbors, sound from ventilation, exhaust fumes from traffic, sounds from other installations, and vibrations from traffic (ORs between 1.37 and 2.14). Modeled noise and NOx exposure were positively related with annoyance to traffic noise and exhaust fumes, respectively. Adjustment of the trait anxiety scores for other individual characteristics and potential determinants did not change the overall pattern of results. Conclusion Trait anxiety scores were often mirrored in ratings of annoyance, which suggests caution when using annoyance reports either as a surrogate measure for environmental exposure on the individual-level in epidemiologic studies or when studying the moderating effects of annoyance on health outcomes.
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| 6. |
- Persson, Stefan, 1963-
(author)
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Adolescents' role in democratic "parenting"
- 2009
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Doctoral thesis (other academic/artistic)abstract
- In research on family democracy there has been a tradition to focus on parents as leaders setting up the family climate. This dissertation challenged this perspective. Keeping with present day’s emphasis on bidirectionality between parents and children democratic family functioning was seen as jointly created by parents and youths. Results showed that youths behaviors and characteristics have to be taken into account if the democratic working of the family is to be fully understood. When controlling for parents’ behaviors, adolescents’ behaviors added significantly to the prediction of a democratic family climate (Study I). Within families, youths democracy compromising behaviors were found to not only have consequences for the individual child. Instead, it was found that changes in younger siblings’ perceptions of family democracy changed as a consequence of an older sibling’s earlier democracy compromising behavior (Study II). Finally, parental openness to communication, youth openness to communication, and parental bad treatment all were found to be separate components of family democracy. Also, these components of family democracy were found to be prospectively linked to adolescents’ perceptions of the democratic climate in their own families. Further, these three components could be used to identify stable family configurations which differed with respect to adolescents’ perceptions of having influence in family matters and their internal-and external adjustment as well as other aspects of the parent-child relationship (Study III). Moreover, changes over-time within families in parental openness to communication, youth openness to communication, and parental bad treatment were associated with changes in youths’ perceptions of having influence in family matters and other features of parent-child relations (Study III). On the whole, these findings lend strong support to seeing children as active agents in the democratic workings of the family and they support a family systems approach to the issue of democratic family functioning. Clearly, young people are human agents with the capacity to interpret and react to their own reality. They are certainly both the harvest and the seeds of democratic family functioning.
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| 7. |
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| 8. |
- Lörstad, Daniel, et al.
(author)
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Measurements and LES of a SGT-800 Burner in a Combustion Rig
- 2012
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In: ASME Turbo Expo 2012, paper GT2012-69936. - 9780791844687 ; Volume 2: Combustion, Fuels and Emissions, Parts A and B, s. 1427-1438
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Conference paper (peer-reviewed)abstract
- The Siemens gas turbine SGT-800 is the largest industrial gas turbine produced by Siemens Industrial Turbomachinery (SIT) offering a dry low emission (DLE) capability below 15 ppm NOx. It has a very high reliability using an annular combustor system with passive damping and 30 DLE burners. To obtain a greater understanding of the mixing process and the flame dynamics and in order to further reduce the emission levels, single burner rig tests have been performed. The laboratory measurements are complemented by Large Eddy Simulation (LES) and Reynolds Averaged Navier-Stokes (RANS) simulations to further investigate the transient fuel distribution and subsequent flame behavior. The measurements were performed jointly by SIT and Lund University using the SIT single burner combustion rig, where the square chamber allows great optical access in the flame region. The experimental data includes wall temperature, pressure fluctuations, light intensity variation and simultaneous Planar Laser Induced Fluorescence of OH and acetone. This investigation is complemented using fuel concentration field laser measurements of the fuel distribution upstream of the flame region in SIT water rig, using a burner partly made of Plexiglas to allow for optical access. The LES model was developed jointly by SIT and FOI. The LES computations were performed using a combustion code developed from the OpenFOAM library utilizing the mixed subgrid flow model, complemented with a subgrid wall model. The reacting flow was simulated using a Finite Rate Chemistry (FRC) combustion model based on the Partially Stirred Reactor (PaSR) model. For this study, a two-step global/reduced methane-air reaction mechanism was employed to describe the combustion chemistry. The RANS simulations were performed with ANSYS Fluent, using the k-ε Realizable eddy viscosity turbulence model in combination with the Fluent partially premixed combustion model. This model is a combination of the Zimont flamelet progress variable model and a Probability Density Function based non-premixed combustion model. The investigation includes a detailed evaluation of the numerical results compared to the measurement data. The numerical model includes the upstream air supply and fuel line systems up to well-defined constrictions to ensure appropriate acoustic inlet conditions. The measurements reveal large fluctuations in the flame region, which has been investigated using LES.
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| 10. |
- Persson, K, et al.
(author)
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Tribological performance of a DLC coating in combination with water-based lubricants
- 2003
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In: Tribology International. - 0301-679X .- 1879-2464. ; 36:11, s. 851-855
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Journal article (peer-reviewed)abstract
- The tribological behaviour in water-based environments has been studied for a tungsten carbide-doped DLC coating (WC/C) deposited by physical vapour deposition (PVD) on bearing steel. Several tribological test equipments have been used to characterise the wear rate, coefficient of friction and resistance to seizure of the coated system, in comparison with uncoated bearing steel surfaces. It was observed that the wear was decreased and the coefficient of friction reduced in pin-on-disc measurements for poor lubricants. Further, the resistance to seizure in the four-ball method was improved by a factor of approximately three. Results from Reichert measurements showed a decreased wear rate and also a very pronounced running-in behaviour of the coating for some water-based lubricants. It has been shown that the performance of tribological systems with water-based lubricants can be significantly improved with this type of DLC coating
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