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- Boddaert, S., et al.
(författare)
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Fire safety of BIPV : International mapping of accredited and R&D facilities in the context of codes and standards 2023
- 2023
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- The objective of Task 15 of the IEA Photovoltaic Power Systems Programme is to create an enabling framework to accelerate the penetration of BIPV products in the global market of renewables, resulting in an equal playing field for BIPV products, BAPV products and regular building envelope components, respecting mandatory issues, aesthetic issues, reliability issues, and financial issues.Subtask E of Task 15 is focused on pre-normative international research on BIPV characterisation methods and activity E.3 is dedicated to fire safety of BIPV modules and installations.
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- Mahajna, H., et al.
(författare)
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Idiopathic Thrombocytopenic Purpura associated with Inflammatory Bowel Disease : a multi-centre ECCO CONFER case series
- 2022
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Ingår i: Journal of Crohn's & Colitis. - : Oxford University Press. - 1873-9946 .- 1876-4479. ; 16:Suppl. 1, s. I561-I561
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Background: Idiopathic Thrombocytopenic Purpura (ITP) is an acquired haematological disorder with an incidence of 1 to 6 per 100.000, with reported comorbidity in patients with Inflammatory Bowel Disease (IBD). The current study aimed to evaluate the clinical presentation and outcome of ITP in IBD patients.Methods: This multicenter retrospective case series was performed as part of the ECCO Collaborative Network of Exceptionally Rare case reports (CONFER) project. Cases of patients with ITP and IBD were collected by participating investigators. Clinical data were recorded in a standardised collection form.Results: This report includes 20 patients with concurrent ITP and IBD: 15 were males, median age was 34 [Interquartile range (IQR) 25–56]. 12 subjects had a diagnosis of ulcerative colitis and 8 of Crohn’s disease. The diagnosis of IBD preceded the ITP diagnosis in 17 patients (median time between diagnosis was 7 years [IQR 1–14 years]). Among those, 10 patients were in IBD clinical remission at ITP diagnosis. Nine were treated with mesalamine, one with thiopurine, 4 with tumor necrosis factor-alpha (TNF) blockers, and 3 with no treatment. The mean platelet count at the presentation of ITP was 41.7±38.6 × 109/L. 6 patients had rectal bleeding, 8 had purpura, 6 had mucosal petechia, 2 had epistaxis, and 6 patients were asymptomatic. Regarding ITP treatment, 11 were treated with corticosteroids, 1 with Anti-RhD immunoglobulin, 7 with intravenous immunoglobulins (IVIG), 2 with rituximab and 2 patients eventually required splenectomy. All patients whose first presentation of ITP was rectal bleeding were treated medically with successful control of the ITP and IBD, None of them required splenectomy. 3 patients required colectomy with long-term follow-up, indicated by the IBD and not due to massive bleeding as a complication of ITP. With long-term follow-up, all patients had thrombocytes count above 50 × 109/L, and 18 were in IBD clinical remission.Conclusion: Most ITP cases in this case series occurred after the IBD diagnosis and responded well to regular ITP treatment. The course of the ITP in the IBD patients follows a regular course, including response to medical therapy and low rates of splenectomy.
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- Schubert, Jasmin S., et al.
(författare)
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Elucidating the formation and active state of Cu co-catalysts for photocatalytic hydrogen evolution
- 2021
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Ingår i: Journal of Materials Chemistry A. - : Royal Society of Chemistry. - 2050-7488 .- 2050-7496. ; 9:38, s. 21958-21971
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Tidskriftsartikel (refereegranskat)abstract
- The design of active and selective co-catalysts constitutes one of the major challenges in developing heterogeneous photocatalysts for energy conversion applications. This work provides a comprehensive insight into thermally induced bottom-up generation and transformation of a series of promising Cu-based co-catalysts. We demonstrate that the volcano-type HER profile as a function of calcination temperature is independent of the type of the Cu precursor but is affected by changes in oxidation state and location of the copper species. Supported by DFT modeling, our data suggest that low temperature (<200 degrees C) treatments facilitate electronic communication between the Cu species and TiO2, which allows for a more efficient charge utilization and maximum HER rates. In contrast, higher temperatures (>200 degrees C) do not affect the Cu oxidation state, but induce a gradual, temperature-dependent surface-to-bulk diffusion of Cu, which results in interstitial, tetra-coordinated Cu+ species. The disappearance of Cu from the surface and the introduction of new defect states is associated with a drop in HER performance. This work examines electronic and structural effects that are in control of the photocatalytic activity and can be transferred to other systems for further advancing photocatalysis.
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