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- Brunnström, Kjell, et al.
(författare)
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3D Video Quality of Experience - Influence of Scale and Crosstalk Invited
- 2014
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Ingår i: Proceedings of the 8th International Workshop on Video Processing and Quality Metrics for Consumer Electronics VPQM-2014. - Scottsdale, AZ, USA.
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Konferensbidrag (refereegranskat)abstract
- This paper gives an overview of three recent studies by the authors on the topic of 3D video Quality of Experience (QoE). Two of studies [1,2] investigated different psychological dimension that may be needed for describing 3D video QoE and the third the visibility and annoyance of crosstalk[3]. The results shows that the video quality scale could be sufficient for evaluating S3D video experience for coding and spatial resolution reduction distortions. It was also confirmed that with a more complex mixture of degradations more than one scale should be used to capture the QoE in these cases. The study found a linear relationship between the perceived crosstalk and the amount of crosstalk.
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- den Dulk, M., et al.
(författare)
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Multicentre analysis of oncological and survival outcomes following anastomotic leakage after rectal cancer surgery
- 2009
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Ingår i: British Journal of Surgery. - : Oxford University Press (OUP). - 0007-1323 .- 1365-2168. ; 96:9, s. 1066-75
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: The association between diverting stomas and symptomatic anastomotic leakage after rectal cancer surgery was studied, as well as the impact of leakage on local recurrence, distant metastasis, and disease-free, overall and cancer-specific survival. METHODS: Data from the Swedish Rectal Cancer Trial, Dutch TME trial, CAO/ARO/AIO-94 trial, EORTC 22921 trial and Polish Rectal Cancer Trial were pooled (n = 5187). All eligible patients without distant metastases at the time of low anterior resection were selected (n = 2726); overall survival was studied in patients aged 75 years or less (n = 2480). Multivariable models were used to study the association between diverting stomas and anastomotic leakage, and between leakage and recurrence or survival. RESULTS: Some 9.7 per cent of patients were diagnosed with a symptomatic anastomotic leak; diverting stomas were negatively associated with leakage (11.6 per cent without and 7.8 per cent with a stoma; P = 0.002). Anastomotic leakage was negatively associated with overall survival in the multivariable analysis (hazard ratio (HR) 1.29 (95 per cent confidence interval 1.02 to 1.63); P = 0.034), but not with cancer-specific survival (HR 1.12 (0.83 to 1.52); P = 0.466). CONCLUSION: Diverting stomas were associated with less symptomatic anastomotic leakage. Oncological outcome was not significantly influenced by leakage, but overall survival was reduced.
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- Folkesson, E., et al.
(författare)
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Proteomic comparison of osteoarthritic and reference human menisci using data-independent acquisition mass spectrometry
- 2020
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Ingår i: Osteoarthritis and Cartilage. - : Elsevier BV. - 1063-4584. ; 28:8, s. 1092-1101
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Tidskriftsartikel (refereegranskat)abstract
- Objective: Recent research in knee osteoarthritis (OA) highlights the role of the meniscus in OA pathology. Our aim was to compare the proteomes of medial and lateral menisci from end-stage medial compartment knee OA patients, with reference menisci from knee-healthy deceased donors, using mass spectrometry. Design: Tissue plugs of Ø3 mm were obtained from the posterior horns of the lateral and medial menisci from one knee of 10 knee-healthy deceased donors and 10 patients undergoing knee replacement. Proteins were extracted and prepared for mass spectrometric analysis. Statistical analysis was conducted on abundance data that was log2-transformed, using a linear mixed effects model and evaluated using pathway analysis. Results: We identified a total of 835 proteins in all samples, of which 331 were included in the statistical analysis. The largest differences could be seen between the medial menisci from OA patients and references, with most proteins showing higher intensities in the medial menisci from OA patients. Several matrix proteins, e.g., matrix metalloproteinase 3 (MMP3) (4.3 times higher values [95%CI 1.8, 10.6]), TIMP1 (3.5 [1.4, 8.5]), asporin (4.1 [1.7, 10.0]) and versican (4.4 [1.8, 10.9]), all showed higher abundance in medial menisci from OA patients compared to medial reference menisci. OA medial menisci also showed increased activation of several pathways involved in inflammation. Conclusion: An increase in protein abundance for proteins such as MMP and TIMP1 in the medial menisci from OA patients suggests simultaneous activation of both catabolic and anabolic processes that warrants further attention.
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