Filtyp
This paper is the state of the art of charcoal signal studies (macro-, meso- and micro-charcoal) that have been carried out at the Epigravettian settlement of Mezhyrich. This work took part of the French ANR project "Mammouths". Charcoal signals have been found in both natural and archaeological (pits and activity areas) deposits that have been sampled during the 2007-2008 archaeological excavatio
Aggregation of the amyloid β-protein (Aβ) is believed to be involved in Alzheimer's disease pathogenesis. Here we have investigated the importance of the aromatic rings at positions 19 and 20 for the aggregation rate and mechanism by substituting phenylalanine with leucine. Aggregation kinetics were monitored as a function of time and peptide concentration by thioflavin T (ThT) fluorescence, the a
The best method to evaluate the seismic site response is by means of borehole vertical arrays that use earthquake records from different depths. In this paper we introduce the implementation of a single borehole sensor system (synchronized to a sensor on the surface) that is fixed at variable depths within a single well. This system is used for recording small amplitude earthquake signals at varia
Aim: To investigate health-related quality of life (HRQoL) in young persons with limb reduction deficiency (LRD). Methods: One hundred and forty children with LRD aged 8-16 answered the DISABKIDS questionnaire for children with chronic health conditions. Of their parents, 137 answered a corresponding questionnaire concerning their child. Results: Compared to reference data from children with other
Popular Abstract in Swedish Ger en ökad fysisk aktivitet bland växande barn bättre skelett- och muskelutveckling och påverkar det i så fall frakturrisken? Benskörhet och låg benmassa medför en ökad risk för frakturer. Låg fysisk aktivitet är också en riskfaktor. En ökad frakturförekomst är i dag ett växande samhällsproblem, och med dessutom en åldrande population samt en generellt mindre fysiskt Osteoporosis and related fractures are a global health problem. Physical activity, especially during growth, has been suggested as a strategy to improve musculoskeletal health in the population. Previous prospective pediatric exercise intervention studies, however, are short-term, mostly covering less than one year and use bone traits as surrogate endpoints for fractures. The Pediatric Osteoporosi
Disorders in the musculoskeletal system have been associated with a high physical workload as well as psychosocial and individual factors. It is however not obvious which of these factors that is most important to prevent. Musculoskeletal disorders in neck and upper extremity was assessed by interview and clinical examination in 79 teachers and 93 assisting nurses, all females. Psychosocial work e
Objectives: To study: (I) work-loss seen as sick leave and disability pension before and after the start of first anti-TNF therapy in Swedish regional and national RA cohorts; (II) baseline predictors of a good future work prognosis at diagnosis and after anti-TNF start with a special focus on the impact of the disease activity level and the disease duration at treatment start. Methods: RA patien
Effects of dynamic ultra-high pressure homogenisation (UHPH) on the micro-and macrostructure of whey protein-depleted milk concentrate solutions with different mineral concentrations (5.0, 7.5, 10.0%, w/w), pH (5.8, 6.2, 6.6) and amount of added sodium chloride (0, 1.5, 3.0%, w/w) were investigated. Significantly increased viscosity was observed in samples at pH 5.8 without added NaCl and with UHP
The driving factors behind the global epidemic of obesity have not yet been fully elucidated. Investigating the effect of age and cohort on weight change might enable us to develop effective intervention strategies. Aims To analyse the pattern of BMI change by age and birth cohort over five-year follow-up in adult Swedish sample. Methods The data was drawn from the Scania Public Health Cohort. The
Zeaxanthin is a carotenoid produced by plants and has been associated with protection of the photosynthetic machinery under light stress and, together with lutein, in protection of the central retina of the eye. Zeaxanthin levels in blood plasma have been negatively correlated to the development of AMD (age-related macular degeneration) (Gale et al, 2003). Under normal conditions, plants have a lo
Many of the physiological adaptations evolved in terrestrial invertebrates to resist desiccation have also been shown to enhance the survival of low temperatures. In this study we have examined temporal changes in the physiology of the collembolan Folsomia candida during acclimation to mild desiccation stress (98.2% RH), and how physiological changes correlate with resistance to subsequent cold sh
In our previous studies we have used electrolytic conductivity detection (ELCD) in the selective analysis of chlorinated fatty acids in marine samples. In order to determine the chlorinated fatty acids quantitatively, we studied the ELCD response factors (RFs) of chlorinated fatty acids and compared them with those of other chlorinated compounds. We also studied the effect of reactor temperature a
Despite evidence that both pollinators and nonpollinator agents of selection can shape the evolution of floral characters, there have been few attempts to compare the strengths and directions of selection from pollinators and other agents in the same study system. In this investigation of Leucanthemum vulgare, a self-incompatible composite known for its conspicuous white rays, I obtained data from
Biological invasions often cause major perturbations in the environment and are well studied among macroorganisms. Less is known about invasion by free-living microbes. Gonyostomum semen (Raphidophyceae) is a freshwater phytoplankton species that has increased in abundance in Northern Europe since the 1980's and has expanded its habitat range. In this study, we aimed to determine the genetic popul
Internet of Things – sakernas internet – är ett framväxande koncept där varje enhet, oavsett storlek, har en anslutning till Internet. Detta examensarbete undersöker vilka möjliga begränsningar i funktionalitet detta får på trådlösa enheter med begränsade resurser. Flera olika teknologier undersöks och jämförs, innan ett antal väljs ut för att ingå i en implementation, till exempel: IEEE 802.15.4,The Internet of Things is an emerging concept where every device, regardless of size, have their own connection to the Internet. This thesis examines what possible limitations are imposed on the functionality of resource constrained, wireless devices. Several different technologies are evaluated and compared, before a set of them is chosen for inclusion in an implementation, for example: IEEE 802.
Scientific summary There is a bidirectional relation between climate and vegetation distribution at local as well as global scale. Changes in climate pattern modify the terrestrial vegetation distribution that in turn affects the climate system by altering the balance of radiation, water, momentum, CO2 and other important atmospheric gases. The large-scale changes in vegetation structure and compo
In the world today 2.5 billion have no access to improved sanitation. This causes social, economic and environmental consequences and therefore weakens all three pillars of sustainability. The sanitation deficit although decreasing in relative terms has increased in absolute numbers since 1990. Conventional water-based systems are costly, pollute the environment and require heavy resource use. Thi
In this thesis I have investigated pauses in writing in word-internal contexts and clause boundaries. I have been looking at the differences between 15-year-olds and adults with dyslexia and been focusing on how many pauses and how much pause time they have in these contexts. People with dyslexia have difficulties coding words, which mean that they are bad spellers and readers. Normally we automat
Scientific summary Satellite imagery has been used to produce highly accurate land cover maps, even effectively discriminating between vegetation types. While land cover classification based on differences in pixel values in one or more spectral bands is an effective way of mapping large areas, the coarse resolution of freely available satellite images is not suitable for mapping urban environment
