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- Bennet, A. M., et al.
(författare)
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Association of TNF-α serum levels and TNFA promoter polymorohisms with risk of myocardial infarction
- 2006
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Ingår i: Atherosclerosis. - : Elsevier. - 0021-9150 .- 1879-1484. ; 187:2, s. 408-414
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Tidskriftsartikel (refereegranskat)abstract
- Elevated levels of tumor necrosis factor-alpha (TNF-α), and presence of polymorphisms of the TNFA gene have been implicated in cardiovascular disease pathogenesis. We explored the relationship between polymorphisms in the TNFA gene (−1031C/T, −863C/A −857T/C, −308G/A, −238G/A), protein levels of TNF-α and their association to myocardial infarction (MI) using a sample of 1213 post-MI patients and 1561 healthy controls. MI risk was higher among men with elevated TNF-α levels, with the highest compared to the lowest TNF-α quartile giving a 70% risk increase (OR [95% CI]: 1.7 [1.1; 2.6]). Obese subjects who also had elevated TNF-α levels were at even higher risk for MI (OR [95% CI]: 3.4 [2.1; 5.6]). Higher TNF-α levels were seen among smokers (but not among non-smokers) carrying the −857T allele. Furthermore, a rare haplotype occurred more frequently among the cases than the controls. Elevated TNF-α levels are associated with increased MI risk. Obese subjects with elevated TNF-a levels, and carriers of polymorphisms in or near TNFA are particularly susceptible to the hazards of smoking, results which may have implications for cardiovascular preventive measures.
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- Lövbrand, Eva, et al.
(författare)
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Earth System governmentality Reflections on science in the Anthropocene
- 2009
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Ingår i: GLOBAL ENVIRONMENTAL CHANGE-HUMAN AND POLICY DIMENSIONS. - : Elsevier BV. - 0959-3780 .- 1872-9495. ; 19:1, s. 7-13
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Tidskriftsartikel (refereegranskat)abstract
- This paper examines Earth System Science as a novel approach to global environmental change research. Drawing upon Michel Foucaults governmentality concept, the paper opens up the Earth System metaphor to political analysis and asks what it does to our understanding of nature and society as a governable domain. We trace the scientific practices that have produced the Earth System as a thinkable analytical category back to the International Geophysical Year in 1957. We also identify the Anthropocene as a central and yet ambiguous system of thought for Earth System Science that harbours different strategies for sustainability in terms of (1) the persons over whom government is to be exercised; (2) the distribution of tasks and actions between authorities; and (3) contrasting ideals or principles for how government should be directed.
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- Reinap, Ausra, et al.
(författare)
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Oak leaves as aerosol collectors
- 2009
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Ingår i: Proceedings of the Nordic Society for Aerosol Research (NOSA) Symposium, Lund, November 12-13, 2009. - Lund.
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Konferensbidrag (refereegranskat)
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- Reinap, Ausra, et al.
(författare)
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Oak leaves as aerosol collectors: relationships with wind velocity and particle size distribution. Experimental results and their implications
- 2009
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Ingår i: Trees. - : Springer Science and Business Media LLC. - 0931-1890 .- 1432-2285. ; 23:6, s. 1263-1274
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Tidskriftsartikel (refereegranskat)abstract
- Advancing the understanding of the aerosol-capture efficiencies of forest components such as leaves and needles, and of the mechanisms that underpin these efficiencies, is essential to the many related issues of forest turnover of nutrients and pollutants. For idealized collectors (such as artificial plates or cylinders) aerosol-mechanics offers a means for calculating capture efficiencies. For living collectors, in particular deciduous leaves, experimental investigations become necessary to assist in formulating the sub-models of capture efficiency that are fundamental to the modelling of fluxes of aerosol-borne substances to forests. We here present wind-tunnel based methods and results for leaves of Quercus robur L. exposed to an aerosol whose mass versus aerodynamic particle size distribution is characterised by a geometric mean aerodynamic particle diameter around 1.2 mu m and a geometric standard deviation around 1.8. With respect to that distribution, and founded on a specially designed leaf wash-off method, we obtained average oak-leaf capture efficiencies ranging from 0.006% of the approaching aerosol mass flux at wind-speed 2 ms(-1) to 0.012% of the flux at wind-speeds 10 ms(-1), respectively. These values can be translated into deposition velocities (V (d) ) for a leaf ensemble with a given leaf area index (LAI). With LAI in the range 2-5 (commonly found in the field) and for wind-speeds 2, 5 and 10 ms(-1), resulting V (d) -values would be 0.02-0.05, 0.05-0.13, and 0.2-0.6 cm/s, respectively. To the extent comparisons are possible, our capture efficiency values are at the low end of the range of values reported by other researchers. The strong wind-speed sensitivity of V (d) has implications for the deposition of aerosol-borne substances to forests for which wind regimes may shift as a result of climatic and land-use changes.
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- Sigurdsson, S, et al.
(författare)
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Polymorphisms in the tyrosine kinase 2 and interferon regulatory factor 5 genes are associated with systemic lupus erythematosus
- 2005
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Ingår i: American Journal of Human Genetics. - : Elsevier BV. - 0002-9297 .- 1537-6605. ; 76:3, s. 528-37
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Tidskriftsartikel (refereegranskat)abstract
- Systemic lupus erythematosus (SLE) is a complex systemic autoimmune disease caused by both genetic and environmental factors. Genome scans in families with SLE point to multiple potential chromosomal regions that harbor SLE susceptibility genes, and association studies in different populations have suggested several susceptibility alleles for SLE. Increased production of type I interferon (IFN) and expression of IFN-inducible genes is commonly observed in SLE and may be pivotal in the molecular pathogenesis of the disease. We analyzed 44 single-nucleotide polymorphisms ( SNPs) in 13 genes from the type I IFN pathway in 679 Swedish, Finnish, and Icelandic patients with SLE, in 798 unaffected family members, and in 438 unrelated control individuals for joint linkage and association with SLE. In two of the genes - the tyrosine kinase 2 (TYK2) and IFN regulatory factor 5 (IRF5) genes - we identified SNPs that displayed strong signals in joint analysis of linkage and association (unadjusted P < 10(-7)) with SLE. TYK2 binds to the type I IFN receptor complex and IRF5 is a regulator of type I IFN gene expression. Thus, our results support a disease mechanism in SLE that involves key components of the type I IFN system.
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- Wiman, Ingela M. B., 1950
(författare)
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Bilden bakom bilden. Myten som identitetsskapare hos etruskerna
- 2005
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Ingår i: Under ytan : populärvetenskapliga föreläsningar hållna under Humanistdagarna den 12-13 november 2005. Red. Eva Ahlstedt (Humanistdag-boken, 18). - Göteborg : Göteborg University. - 9173603422 ; , s. 319-324
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Bokkapitel (övrigt vetenskapligt/konstnärligt)
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