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- Ng, M Y M, et al.
(författare)
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Meta-analysis of 32 genome-wide linkage studies of schizophrenia
- 2009
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Ingår i: Molecular Psychiatry. - : Springer Science and Business Media LLC. - 1359-4184 .- 1476-5578. ; 14:8, s. 774-785
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Tidskriftsartikel (refereegranskat)abstract
- A genome scan meta-analysis (GSMA) was carried out on 32 independent genome-wide linkage scan analyses that included 3255 pedigrees with 7413 genotyped cases affected with schizophrenia (SCZ) or related disorders. The primary GSMA divided the autosomes into 120 bins, rank-ordered the bins within each study according to the most positive linkage result in each bin, summed these ranks (weighted for study size) for each bin across studies and determined the empirical probability of a given summed rank (P(SR)) by simulation. Suggestive evidence for linkage was observed in two single bins, on chromosomes 5q (142-168 Mb) and 2q (103-134 Mb). Genome-wide evidence for linkage was detected on chromosome 2q (119-152 Mb) when bin boundaries were shifted to the middle of the previous bins. The primary analysis met empirical criteria for 'aggregate' genome-wide significance, indicating that some or all of 10 bins are likely to contain loci linked to SCZ, including regions of chromosomes 1, 2q, 3q, 4q, 5q, 8p and 10q. In a secondary analysis of 22 studies of European-ancestry samples, suggestive evidence for linkage was observed on chromosome 8p (16-33 Mb). Although the newer genome-wide association methodology has greater power to detect weak associations to single common DNA sequence variants, linkage analysis can detect diverse genetic effects that segregate in families, including multiple rare variants within one locus or several weakly associated loci in the same region. Therefore, the regions supported by this meta-analysis deserve close attention in future studies.
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- Delewi, Ronak, et al.
(författare)
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Clinical and Procedural Characteristics Associated With Higher Radiation Exposure During Percutaneous Coronary Interventions and Coronary Angiography.
- 2013
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Ingår i: Circulation. Cardiovascular interventions. - 1941-7632. ; 6, s. 501-506
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: WE AIM TO STUDY THE CLINICAL AND PROCEDURAL CHARACTERISTICS ASSOCIATED WITH HIGHER RADIATION EXPOSURE IN PATIENTS UNDERGOING PERCUTANEOUS CORONARY INTERVENTIONS (PCIS) AND CORONARY ANGIOGRAPHY.METHODS AND RESULTS: OUR PRESENT STUDY INCLUDED ALL CORONARY ANGIOGRAPHY AND PCI PROCEDURES IN 5 PCI CENTERS IN THE WESTERN PART OF SWEDEN, BETWEEN JANUARY 1, 2008, AND JANUARY 19, 2012. THE RADIATION EXPOSURE AND CLINICAL DATA WERE COLLECTED PROSPECTIVELY IN THESE 5 PCI CENTERS IN SWEDEN AS PART OF THE SWEDISH CORONARY ANGIOGRAPHY AND ANGIOPLASTY REGISTRY (SCAAR). A PREDICTION MODEL WAS MADE FOR THE RADIATION EXPOSURE (DOSEAREA PRODUCT) EXPRESSED IN GYCM(2). A TOTAL OF 20 669 PROCEDURES WERE INCLUDED IN THE PRESENT STUDY, CONSISTING OF 9850 PCI AND 10 819 CORONARY ANGIOGRAPHY PROCEDURES. IN MULTIVARIABLE ANALYSES, BODY MASS INDEX (=1.04; CONFIDENCE INTERVAL [CI], 1.041.04; P0.001); HISTORY OF CORONARY ARTERY BYPASS GRAFT SURGERY (=1.32; CI, 1.281.32; P0.001); 2, 3, OR 4 TREATED LESIONS (2 TREATED LESIONS: =1.95; CI, 1.842.03; P0.001; 3 TREATED LESIONS: =2.34; CI, 2.162.53; P0.001; AND 4 TREATED LESIONS: =2.83; CI, 2.533.16; P0.001); AND CHRONIC TOTAL OCCLUSION LESIONS (=1.39; CI, 1.311.48; P0.001) WERE ASSOCIATED WITH THE HIGHEST RADIATION EXPOSURE. AFTER ADJUSTING FOR PROCEDURAL COMPLEXITY, RADIAL ACCESS ROUTE WAS NOT ASSOCIATED WITH INCREASED RADIATION EXPOSURE (=1.00; CI, 0.981.03; P=0.67).CONCLUSIONS: In the largest study population to assess radiation exposure, we found that high body mass index, history of coronary artery bypass graft surgery, number of treated lesions, and chronic total occlusions were associated with the highest patient radiation exposure. Radial access site was not associated with higher radiation exposure when compared with femoral approach.
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- Nyman, J., et al.
(författare)
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Smart condition monitoring of a steel bascule railway bridge
- 2023
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Ingår i: Life-Cycle of Structures and Infrastructure Systems - Proceedings of the 8th International Symposium on Life-Cycle Civil Engineering, IALCCE 2023. - : Informa UK Limited. ; , s. 229-236
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Konferensbidrag (refereegranskat)abstract
- This paper presents a long-term monitoring campaign for safety assessment of an over 100 years old steel railway bridge in Vänersborg in the southwest of Sweden. Due to its age, the bridge is affected by severe corrosion, and cracks have been detected during inspection. In anticipation of a large-scale reparation of the bridge, a comprehensive monitoring system has been installed. The monitoring system consists of 5 accelerometers, 16 strain gauges, 1 inclinometer and 3 weather measurement sensors (temperature, wind speed and wind direction). Data is collected continuously with high sampling frequency, transmitted to a structured IoT database in the cloud, and used for further processing and visualization. This paper describes the safety assessment processes, the underlying ideas behind them, the challenges encountered, and the developed monitoring dashboard for visualization of results. It also discusses the increased capabilities of the system after an entire year of monitoring.
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