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Structural Health Monitoring (SHM) can provide valuable information for maintenance-related activities and post-disaster emergency management. However, as with any technological system, SHM systems can be susceptible to errors due to malfunctioning. Therefore, it is essential to assess the potential for malfunctions and the associated costs of maintenance and repair when evaluating the long-term b
Background: Vertebral fractures are associated with back pain and disability; however, relatively little is known about the impact of radiographic vertebral fractures on quality of life in population samples. The aim of this study was to determine the impact of a recent radiographic vertebral fracture on health-related quality of life (HRQoL). Methods: Men and women aged 50 years and over were rec
Although multiple system atrophy (MSA) is a neurodegenerative disorder leading to progressive disability and decreased life expectancy, little is known about patients' own evaluation of their illness and factors associated with poor health-related quality of life (Hr-QoL). We, therefore, assessed Hr-QoL and its determinants in MSA. The following scales were applied to 115 patients in the European
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The aim of the first this work part of the EU-project, Trial I, was to evaluate and possibly improve the CEC image criteria for radiographic chest images. Chest images of healthy volunteers were acquired using different technique factors. The image criteria were used as a tool to discriminate between the different images. The technique factors were chosen so that the image quality would differ sli
Bacteroides ovatus is a member of the human gut microbiota. The importance of this microbial consortium involves the degradation of complex dietary glycans mainly conferred by glycoside hydrolases. In this study we focus on one such catabolic glycoside hydrolase from B. ovatus. The enzyme, termed BoMan26A, is a β-mannanase that takes part in the hydrolytic degradation of galactomannans. The crysta
The Chinese urban population face serious health issues due to the increasing concentration of air pollutants. Research has shown that air quality was influenced by urban forms, and that special combinations of city characteristics could contribute to sustainable urban development. This study aims to determine how urban forms affected air quality in Chinese cities. In this context, urban forms are
This paper evaluates the Swedish school reform that was implemented in 1992, at upper secondary school level. The reform implies that independent schools are welcome to compete on the school market and are publicly funded. This reform has led to an increase in the share of students attending independent schools. Several estimations are performed in this paper on what impact this increase of compet
The report describes a quality measurement for audio, both the theoretical background and implementation. It begins by describing the unlicensed methods the implementation is based on, Segmental SNR, Frequency Weighted Segmental SNR, Log-Likelihood Ratio, Cepstral Distance and Weighted Slope Spectral distance, and the commercial methods used as reference, PEAQ and PESQ. It also mentions the proble
Popular Abstract in Swedish En fråga inom biologin som länge intresserat forskare är varför det ena könet hos många arter har så väl utvecklade ornament. Till dessa så kallade sekundära könskaraktärer (primära könskaraktärer är de som används vid själva fortplantningen) räknas till exempel påfåglars stjärtplymer och hönsfåglars kammar och sporrar. Dessa ornament förekommer oftast hos hanar och i pFemales often base their choice of mates on the expression, size or intensity, of male sexual ornaments. Indicator models of sexual selection assume that females assess male genetic quality through the expression of these secondary sexual characters. Several mechanisms that link the expression of sexual ornaments to genetic quality have been suggested. Many models assume that this link is individu
The three basic paradigms of behaviour science, association, structure, and process, were used to anchor the simulation of new forms of social organization. These have been projected by means of a behaviour, a humanist, and a growth model. The Swedish model was also included as a possible point of reference. This article summarizes the results of two experiments, one on the assessment of quality o
To survey the quality of SNP genotyping, a joint Nordic quality assessment (QA) round was organized between 11 laboratories in the Nordic and Baltic countries. The QA round involved blinded genotyping of 47 DNA samples for 18 or six randomly selected SNPs. The methods used by the participating laboratories included all major platforms for small, to medium-size SNP genotyping. The laboratories used
Executing an accurate full-reference metric such as VQM can take minutes in an average computer for just one user. Therefore, it can be unfeasible to analyze all the videos received by users in an IPTV network for example consisting of 10.000 users using a single computer running the VQM metric. One solution can be to use a lightweight no-reference metrics in addition to the full-reference metric
This doctoral thesis revolves around the analysis of electrocardiogram (ECG) signals during atrial fibrillation (AF). Special emphasis is put on the atrial fibrillatory waves, sometimes called the f-waves, which is the ECG component reflecting the electrical activity of the atria. The thesis comprises an introduction and five papers that introduce and apply methods on ECG-based analysis of AF. Pap
