| 1. |
- Airiskallio, E., et al.
(författare)
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High temperature oxidation of Fe-Al and Fe-Cr-Al alloys : The role of Cr as a chemically active element
- 2010
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Ingår i: Corrosion Science. - : Elsevier BV. - 0010-938X .- 1879-0496. ; 52:10, s. 3394-3404
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Tidskriftsartikel (refereegranskat)abstract
- Good high-temperature corrosion resistance of Fe-Al alloys in oxidizing environments is due to the alpha-Al2O3 film which is formed on the surface provided temperature is above 900 degrees C and the Al-content of the alloy exceeds the critical value. Ab initio calculations combined with experiments on Fe-13Al, Fe-18Al, Fe-23Al and Fe-10Cr-10Al alloys show that the beneficial effect of Cr on the oxidation resistance is significantly related to bulk effects. The comparison of experimental and calculated results indicates a clear correlation between the Fe-Cr chemical potential difference and the formation of the protective oxide scales. (C) 2010 Elsevier Ltd. All rights reserved.
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| 2. |
- Baltar, Federico, et al.
(författare)
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Bacterial Versus Archaeal Origin of Extracellular Enzymatic Activity in the Northeast Atlantic Deep Waters
- 2013
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Ingår i: Microbial Ecology. - Springer-Verlag : Springer Science and Business Media LLC. - 0095-3628 .- 1432-184X. ; 65:2, s. 277-288
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Tidskriftsartikel (refereegranskat)abstract
- We determined the total and dissolved extracellularenzymatic activity (EEA) of α-glucosidase and β-glucosidase(AGase and BGase), alkaline phosphatase (APase) and leucineaminopeptidase (LAPase) activities in the epi-, meso- andbathypelagic waters of the subtropical Northeast Atlantic.EEA was also determined in treatments in which bacterialEEAwas inhibited by erythromycin. Additionally, EEA decayexperiments were performed with surface and deep waters todetermine EEA lifetimes in both water masses. The proportionof dissolved to total EEA (66–89 %, 44–88 %, 57–82 % and86–100 % for AGase, BGase, APase and LAPase, respectively)was generally higher than the cell-associated (i.e.,particulate) EEA. The percentage of dissolved to total EEAwas inversely proportional to the percentage of erythromycininhibitedto total EEA. Since erythromycin-inhibited plusdissolved EEA equaled total EEA, this tentatively suggeststhat cell-associated EEA in the open oceanic water column isalmost exclusively of bacterial origin. The decay constants ofdissolved EEAwere in the range of 0.002–0.048 h−1 dependingon the type of extracellular enzyme, temperature and depthin the water column. Although dissolved EEA can have differentorigins, the major contribution of Bacteria to cellassociatedEEA and the long life-time of dissolved EEAsuggest that Bacteria—and not mesophilic Archaea—areessentially the main producers of EEA in the open subtropicalNortheast Atlantic down to bathypelagic layers.
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| 3. |
- Bucken-Knapp, Gregg, et al.
(författare)
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The eye of the beholder: Narrating crisis in the ongoing Swedish labor migration policy debate
- 2015
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Ingår i: Korkut, U., Buchen-Knapp, G., Cox, R.H., Mahndran, K. (Eds.). Discursive Governance in Politics, Policy, and the Public Sphere. - London : Palgrave Macmillan. ; , s. 127-144
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Bokkapitel (refereegranskat)
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| 4. |
- Ferrari, Arnaud
(författare)
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Searches for neutral and charged Higgs bosons in the ATLAS experiment as a test of physics beyond the Standard Model
- 2013
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Ingår i: International Workshop on Discovery Physics at the LHC (KRUGER2012). - : IOP Publishing. ; , s. 012016-
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Konferensbidrag (refereegranskat)abstract
- In several theories beyond the Standard Model, the Higgs sector consists of more than one complex scalar doublet. For instance, supersymmetric models such as the MSSM have five physical Higgs states: two charged and three neutral. In this paper, a review of the searches for new neutral and charged Higgs bosons at the Large Hadron Collider, with the ATLAS experiment, is presented.
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| 5. |
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| 6. |
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| 7. |
- Hogberg, M., et al.
(författare)
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Linear compensator control of a pointsource induced perturbation in a Falkner-Skan-Cooke boundary layer
- 2003
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Ingår i: Physics of fluids. - : AIP Publishing. - 1070-6631 .- 1089-7666. ; 15:8, s. 2449-2452
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Tidskriftsartikel (refereegranskat)abstract
- We focus on the problem of controlling pointsource induced perturbations on an infinite swept wing using linear control theory. Based on wall measurements in a spatial simulation of localized disturbances in Falkner-Skan-Cooke boundary layers, an extended Kalman filter is used to estimate the full three-dimensional wave packet. The estimated field is in turn used to calculate a feedback control which changes the growth of the disturbance into decay. This is the first time that optimal control and estimation concepts are successfully applied to construct a dynamic output feedback compensator which is used to control disturbances in spatially developing boundary layers.
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| 8. |
- Huang, Hu, et al.
(författare)
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RNA-Seq reveals placental growth factor regulates the human retinal endothelial cell barrier integrity by transforming growth factor (TGF-beta) signaling
- 2020
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Ingår i: Molecular and Cellular Biochemistry. - : SPRINGER. - 0300-8177 .- 1573-4919. ; 475, s. 93-106
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Tidskriftsartikel (refereegranskat)abstract
- Placental growth factor (PlGF or PGF) is a member of the VEGF (vascular endothelial growth factor) family. It plays a pathological role in inflammation, vascular permeability, and pathological angiogenesis. The molecular signaling by which PlGF mediates its effects in non-proliferative diabetic retinopathy (DR) remains elusive. This study aims to characterize the transcriptome changes of human retinal endothelial cells (HRECs) with the presence and the absence of PlGF signaling. Primary HRECs were treated with the PlGF antibody (ab) to block its activity. The total RNA was isolated and subjected to deep sequencing to quantify the transcripts and their changes in both groups. We performed transcriptome-wide analysis, gene ontology, pathway enrichment, and gene-gene network analyses. The results showed that a total of 3760 genes were significantly differentially expressed and were categorized into cell adhesion molecules, cell junction proteins, chaperone, calcium-binding proteins, and membrane traffic proteins. Functional pathway analyses revealed that the TGF-beta pathway, pentose phosphate pathway, and cell adhesion pathway play pivotal roles in the blood-retina barrier and antioxidant defense system. Collectively, the data provide new insights into the molecular mechanisms of PlGFs biological functions in HRECs relevant to DR and diabetic macular edema (DME). The newly identified genes and pathways may act as disease markers and target molecules for therapeutic interventions for the patients with DR and DME refractory to the current anti-VEGF therapy.
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| 9. |
- Hugemark, Agneta
(författare)
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Replik till mina kritiker
- 1995
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Ingår i: Ekonomisk Debatt. - Stockholm : Nationalekonomiska föreningen. - 0345-2646. ; 23:6
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Tidskriftsartikel (refereegranskat)
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| 10. |
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