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| 2. |
- Poley, L., et al.
(författare)
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The ABC130 barrel module prototyping programme for the ATLAS strip tracker
- 2020
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Ingår i: Journal of Instrumentation. - : IOP PUBLISHING LTD. - 1748-0221. ; 15:9
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Tidskriftsartikel (refereegranskat)abstract
- For the Phase-II Upgrade of the ATLAS Detector [1], its Inner Detector, consisting of silicon pixel, silicon strip and transition radiation sub-detectors, will be replaced with an all new 100% silicon tracker, composed of a pixel tracker at inner radii and a strip tracker at outer radii. The future ATLAS strip tracker will include 11,000 silicon sensor modules in the central region (barrel) and 7,000 modules in the forward region (end-caps), which are foreseen to be constructed over a period of 3.5 years. The construction of each module consists of a series of assembly and quality control steps, which were engineered to be identical for all production sites. In order to develop the tooling and procedures for assembly and testing of these modules, two series of major prototyping programs were conducted: an early program using readout chips designed using a 250 nm fabrication process (ABCN-250) [2, 3] and a subsequent program using a follow-up chip set made using 130 nm processing (ABC130 and HCC130 chips). This second generation of readout chips was used for an extensive prototyping program that produced around 100 barrel-type modules and contributed significantly to the development of the final module layout. This paper gives an overview of the components used in ABC130 barrel modules, their assembly procedure and findings resulting from their tests.
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| 3. |
- Almqvist, C, et al.
(författare)
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Predicting germination capacity of Pinus sylvestris and Picea abies seeds using temperature data from weather stations
- 1998
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Ingår i: CANADIAN JOURNAL OF FOREST RESEARCH-REVUE CANADIENNE DE RECHERCHE FORESTIERE. - : NATL RESEARCH COUNCIL CANADA. - 0045-5067. ; 28:10, s. 1530-1535
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- In Fennoscandia, both Scots pine (Pinus sylvestris L.) and Norway spruce (Picea abies (L.) Karst.) often fail to produce mature seed, especially in the northern parts of their range. Therefore, cone and seed crop predictions are of major strategic importa
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| 4. |
- Andersson, Helen, 1968, et al.
(författare)
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Individuals' Experiences of Being Screened for Hypertension in Dental Health Care – “No Big Deal”
- 2022
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Ingår i: Patient Preference and Adherence. - 1177-889X. ; 16, s. 1449-1456
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Tidskriftsartikel (refereegranskat)abstract
- Background: Hypertension is a common disease globally that accounts for the highest number of lost healthy life years and strongly associated with sequelae such as stroke and myocardial infarction. Early detection of individuals with high blood pressure can be ensured by screening also those who consider themselves “healthy”. Screening has both positive and negative effects where a diagnosis of hypertension can lead to worry about the future. These effects need to be elucidated in order to balance between benefit and harm before screening is introduced. The aim of the study was to describe individuals’ experiences of being screened for hypertension in dental health care. Methods: Data from individual semi-structured interviews, with twenty participants screened for cardiovascular risk factors in connection with dental examination and aged 55–80 years, were analysed by means of qualitative content analysis. Results: The results describe individuals’ experiences of blood pressure screening in dental health care by means of the following theme: “No big deal” based on two categories: “Convenient way of measuring blood pressure” and “Increased awareness of health”. Conclusion: The overall message from the interviews was that having one’s blood pressure measured when visiting the dentist was convenient, easy and “No big deal”. Blood pressure screening did not create any major concerns and contributed to an increased awareness of health.
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| 6. |
- Bergsten, U., et al.
(författare)
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A randomized study comparing regular care with a nurse-led clinic based on tight disease activity control and person-centred care in patients with rheumatoid arthritis with moderate/high disease activity: A 6-month evaluation
- 2019
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Ingår i: Musculoskeletal Care. - : Wiley. - 1478-2189 .- 1557-0681. ; 17:3, s. 215-225
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Tidskriftsartikel (refereegranskat)abstract
- Introduction: A recent survey showed that 27% of rheumatoid arthritis (RA) patients had inadequately controlled disease activity. Hence, there is a need for new strategies aiming at improving patient outcomes. The aim of the present study was to evaluate the effect of a nurse-led clinic with frequent visits, treat-to-target and person-centred care of patients with established RA and moderate-to-high disease activity compared with patients receiving regular care. Methods: The study was a randomized, controlled trial over 26weeks, with a nonrandomized extension to week 50. Patients were randomized to an intervention group (IG; nurse-led clinic) based on person-centred care, frequent visits and “treat to target”, or to a control group (CG) which visited the clinic according to care as usual. The primary outcome was the difference in the DAS28 change between the IG and the CG groups. Results: A total of 332 patients were screened for eligibility, of which 70 were randomly assigned to either the IG (n=36) or the CG (n=34) group. The primary outcome was not met, although patients in the IG group tended to improve more than those in the CG group (difference: 0.43 (95% confidence interval [CI] –0.27, 1.13). In both the IG and CG groups, delta-DAS28 improved significantly. The European League Against Rheumatology moderate or good response was achieved by 76% (95% CI 58, 89) in the IG and 49% (95% CI 32, 65) in the CG group. Conclusions: Disease activity tended to improve more with the nurse-led intervention compared with regular care, although the difference was not significant, probably partly due to the lack of statistical power. © 2019 The Authors Musculoskeletal Care published by John Wiley & Sons Ltd
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| 7. |
- Bergsten, U, et al.
(författare)
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Batch measurements of wood density on intact or prepared drill cores using x-ray microdensitometry
- 2001
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Ingår i: Wood Science and Technology. - 0043-7719 .- 1432-5225. ; 35, s. 435-452
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Tidskriftsartikel (refereegranskat)abstract
- The performance of a batch scanning x-ray densitometer for measuring wood density without sample preparation, i.e., on intact drill cores, or on rectangular samples prepared from drill cores, was analysed. Effects of x-ray intensity, sample thickness and fiber direction, as well as extractives content, were evaluated for young (mainly sapwood) and old (mainly heartwood) wood from Scots pine (Pinus sylvestris L.) and Norway spruce (Picea abies (L.) Karst.). The x-ray power level used as standard (1.4 kW; 40 kV and 35 mA) seemed appropriate for the tested species and specimen thickness. The density of intact drill cores could be determined with a mean standard deviation of 1.6% for each sample, with a single machine run, if the cores were mounted with a fixed fiber direction and calibrations were made for each wood type. The corresponding precision for rectangular samples was 1.0%. Further improvements are attainable by using standard reference samples in each machine run and batch-wise analysis. For the chosen wood types and measurement technique, a sample thickness of 5 mm should give the best precision. However, for species with very narrow rings, thinner samples would improve the spatial resolution when ring boundaries are angled or curved. Extractives should be removed, especially for pine, but possibly also for spruce, if high precision in density determination is required.
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| 8. |
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| 9. |
- Fisichella, Valeria A, 1974, et al.
(författare)
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Evaluation of image quality and lesion perception by human readers on 3D CT colonography: comparison of standard and low radiation dose
- 2010
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Ingår i: European Radiology. - 1432-1084. ; 20:3, s. 630-9
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Tidskriftsartikel (refereegranskat)abstract
- AIMS: We compared the prevalence of noise-related artefacts and lesion perception on three-dimensional (3D) CT colonography (CTC) at standard and low radiation doses. METHODS: Forty-eight patients underwent CTC (64 x 0.625 mm collimation; tube rotation time 0.5 s; automatic tube current modulation: standard dose 40-160 mA, low dose 10-50 mA). Low- and standard-dose acquisitions were performed in the supine position, one after the other. The presence of artefacts (cobblestone and snow artefacts, irregularly delineated folds) and the presence of polyps were evaluated by five radiologists on 3D images at standard dose, the original low dose and a modified low dose, i.e. after manipulation of opacity on 3D. RESULTS: The mean effective dose was 3.9 +/- 1.3 mSv at standard dose and 1.03 +/- 0.4 mSv at low dose. The number of images showing cobblestone artefacts and irregularly delineated folds at original and modified low doses was significantly higher than at standard dose (P < 0.0001). Most of the artefacts on modified low-dose images were mild. No significant difference in sensitivity between the dose levels was found for polyps >/=6 mm. CONCLUSIONS: Reduction of the effective dose to 1 mSv significantly affects image quality on 3D CTC, but the perception of >/=6 mm lesions is not significantly impaired.
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| 10. |
- Landgren, Anton J., 1989, et al.
(författare)
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Health-related quality of life in gout, psoriatic arthritis, rheumatoid arthritis and ankylosing spondylitis, results from a cross-sectional survey in Western Sweden.
- 2023
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Ingår i: Scandinavian journal of rheumatology. - : Informa UK Limited. - 1502-7732 .- 0300-9742. ; 52:5, s. 506-518
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Tidskriftsartikel (refereegranskat)abstract
- Inflammatory joint diseases (IJDs) substantially affect health-related quality of life (HRQoL). We aimed to compare HRQoL between patients with gout, psoriatic arthritis (PsA), rheumatoid arthritis (RA), and ankylosing spondylitis (AS): (i) overall; (ii) stratified by sex; and (iii) between women and men with the same IJD diagnosis.A survey including the RAND36-Item Health Survey for assessing HRQoL was sent to patients with a diagnosis of gout, PsA, RA, or AS, registered at a rheumatology clinic or primary care centre during 2015-2017. HRQoL was compared across IJDs. Because of age differences between diagnoses, age-matched analyses were performed.In total, 2896/5130 (56.5%) individuals responded to the questionnaire. Of these, 868 had gout, 699 PsA, 742 RA, and 587 AS. Physical component summary (PCS) scores were more affected than mental component summary (MCS) scores for all diagnoses (PCS range: 39.7-41.2; MCS range: 43.7-48.9). Patients with gout reported better PCS scores than patients with PsA, RA, and AS, who reported similar scores in age-matched analysis. MCS scores were close to normative values for the general population and similar across IJDs. When comparing women and men with respective IJDs, women reported worse PCS (range, all IJDs: 34.5-37.4 vs 37.5-42.5) and MCS (PsA: 44.0 vs 46.8; RA: 46.1 vs 48.7) scores.We found that patients with gout reported better PCS scores than patients with other IJDs, for whom the results were similar. Women reported overall worse PCS and MCS scores than men.
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