| 11. |
- Mahout, G., et al.
(författare)
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Irradiation studies of multimode optical fibres for use in ATLAS front-end links
- 2000
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Ingår i: Nuclear Instruments and Methods in Physics Research Section A. - 0168-9002 .- 1872-9576. ; 446:3, s. 426-434
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Tidskriftsartikel (refereegranskat)abstract
- The radiation tolerance of three multimode optical fibres has been investigated to establish their suitability for the use in the front-end data links of the ATLAS experiment. Both gamma and neutron irradiation studies are reported. A step-index fibre with a pure silica core showed an induced attenuation of similar to 0.05 dB/m at 330 kGy(Si) and 1 x 10(15) n(1 MeV Si)/cm(2) and is suitable for use with the inner detector links which operate at 40-80 Mb/s. A graded-index fibre with a predominantly germanium-doped core exhibits an induced attenuation of similar to 0.1 dB/m at 800 Gy(Si) and 2 x 10(13) n(1 MeV Si)/cm(2) and is suitable for the calorimeter links which operate at 1.6 Gb/s. Measurements of the dose rate dependence of the induced attenuation indicate that the attenuation in ATLAS will be lower.
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| 14. |
- Stoustrup, Peter, et al.
(författare)
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Management of orofacial manifestations of juvenile idiopathic arthritis : Interdisciplinary consensus-based recommendations.
- 2023
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Ingår i: Arthritis & Rheumatology. - : John Wiley & Sons. - 2326-5191 .- 2326-5205. ; 75:1, s. 4-14
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Forskningsöversikt (refereegranskat)abstract
- OBJECTIVES: Involvement of the temporomandibular joint (TMJ) is common in juvenile idiopathic arthritis (JIA). TMJ arthritis can lead to orofacial symptoms, dysfunction and dentofacial deformity with negative impact on quality of life. Management involves interdisciplinary collaboration. No current recommendations exist to guide clinical management.OBJECTIVES: 1) To develop consensus-based interdisciplinary recommendations for management of orofacial manifestations of JIA. 2) To create a future research agenda related to management of TMJ arthritis in children with JIA.METHODS: The recommendations were developed using online surveying of relevant stakeholders, systematic literature review, evidence-informed generation of recommendations during two consensus-meetings, and Delphi study iterations involving external experts. The process included disciplines involved in the care of orofacial manifestations of JIA: Pediatric rheumatology, radiology, orthodontics, oral and maxillofacial surgery, orofacial pain specialists and pediatric dentistry. Recommendations were accepted if agreement was >80% during a final Delphi study.RESULTS: Three overarching management principles and 12 recommendations for interdisciplinary management of orofacial manifestations of JIA were outlined. The 12 recommendations pertained to: diagnosis (n=4), treatment of TMJ arthritis (active TMJ inflammation) (n=2), treatment of TMJ dysfunction and symptoms (n=3), treatment of arthritis-related dentofacial deformity (n=2), and other related aspects to JIA (n=1). Additionally, a future interdisciplinary research agenda was developed.CONCLUSIONS: These are the first interdisciplinary recommendations to guide clinical management of TMJ JIA. The 3 overarching principles and 12 recommendations fill an important gap in current clinical practice. They emphasize the importance of an interdisciplinary approach to diagnosis and management of orofacial manifestations of JIA. This article is protected by copyright. All rights reserved.
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| 15. |
- Arvidsson, A., et al.
(författare)
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Chemical and topographical analyses of dentine surfaces after Carisolv™ treatment
- 2002
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Ingår i: Journal of Dentistry. - 0300-5712 .- 1879-176X. ; 30:2-3, s. 67-75
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Tidskriftsartikel (refereegranskat)abstract
- Objectives. The aim of this study was to characterise the surface chemistry of cavities after chemomechanical caries excavation, and also to measure the surface topography after caries removal with Carisolv™ or burs, followed by acid etching. Methods. Fourier transform (FT)-Raman spectroscopy was used to study the relative amounts of organic material and minerals of sound enamel, dentine, and cavities, after caries excavation. Fourier transform infrared spectroscopy (FTIR) and laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) were used for detection of Carisolv™ substances (i.e. mainly sodium hypochlorite, amino acids, and the gelling agent carboxymethyl cellulose). In total, 19 carious and 11 sound extracted teeth were used for the chemical analyses. Topographic examination of 30 carious extracted teeth was performed with a contact profilometer. Results. The relative amounts of organic material and minerals did not significantly differ between sound dentine and the cavities after caries removal with burs or Carisolv™. The FTIR analyses indicated extremely small amounts of Carisolv™ substances at the cavity surface, but the LA-ICP-MS analyses did not confirm those findings. Furthermore, the topographical parameters did not significantly differ between etched cavities after caries removal using burs or Carisolv™. Conclusions. The chemical and topographical analyses in the present study imply that any differences between the cavities after caries excavation with burs or with Carisolv™ are insignificant. © 2002 Elsevier Science Ltd. All rights reserved.
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| 16. |
- Arvidsson, Anna, 1973, et al.
(författare)
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Comparing and visualizing titanium implant integration in rat bone using 2D and 3D techniques
- 2015
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Ingår i: Journal of Biomedical Materials Research. Part B - Applied biomaterials. - : Wiley. - 1552-4973 .- 1552-4981. ; 103:1, s. 12-20
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Tidskriftsartikel (refereegranskat)abstract
- The aim was to compare the osseointegration of grit-blasted implants with and without a hydrogen fluoride treatment in rat tibia and femur, and to visualize bone formation using state-of-the-art 3D visualization techniques. Grit-blasted implants were inserted in femur and tibia of 10 Sprague-Dawley rats (4 implants/rat). Four weeks after insertion, bone implant samples were retrieved. Selected samples were imaged in 3D using Synchrotron Radiation-based CT (SRCT). The 3D data was quantified and visualized using two novel visualization techniques, thread fly-through and 2D unfolding. All samples were processed to cut and ground sections and 2D histomorphometrical comparisons of bone implant contact (BIC), bone area (BA), and mirror image area (MI) were performed. BA values were statistically significantly higher for test implants than controls (p<0.05), but BIC and MI data did not differ significantly. Thus, the results partly indicate improved bone formation at blasted and hydrogen fluoride treated implants, compared to blasted implants. The 3D analysis was a valuable complement to 2D analysis, facilitating improved visualization. However, further studies are required to evaluate aspects of 3D quantitative techniques, with relation to light microscopy that traditionally is used for osseointegration studies. (c) 2014 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 103B: 12-20, 2015.
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