Sökresultat

Filtyp

Din sökning på "*" gav 530773 sökträffar

Phenotypic Divergence among West European Populations of Reed Bunting Emberiza schoeniclus: The Effects of Migratory and Foraging Behaviours

Divergent selection and local adaptation are responsible for many phenotypic differences between populations, potentially leading to speciation through the evolution of reproductive barriers. Here we evaluated the morphometric divergence among west European populations of Reed Bunting in order to determine the extent of local adaptation relative to two important selection pressures often associate

Retinal function in deaf-blind syndromes

Popular Abstract in Swedish Ett kombinerat syn- och hörselhandikapp påverkar vår möjlighet att kommunicera med omvärlden och det påverkar barnets möjlighet att utvecklas. De senaste decennierna har det skett stora framsteg för patienter med syn- och hörsel handikapp. Utvecklingen av cochlea-implantat under 80- och 90-talen har inneburit en revolutionerande förändring för barn födda med ett hörselhA variety of disorders can cause retinal degeneration and hearing impairment, and it is of great value to have an early diagnosis since there is a large variation in phenotype and prognosis both within and between the different disorders. The general aim of this thesis was to characterize the retinal function, to describe the phenotype, and – where appropriate – to relate the phenotype to genotype

Linking upper Silurian terrestrial and marine successions : alynological study from Skåne, Sweden

We have performed a palynostratigraphic study on miospore assemblages from near-shore marine Silurian sedimentary rocks of Skåne, southern Sweden. The material includes both drillcore (from Klintaborrningen 1 and Bjärsjölagårdborrningen 2) and outcrop samples from various localities in Skåne. Well- preserved spore assemblages were identified. Long ranging species with a global distribution dominat

Farm Intensification and Milk Market Expansion in Meru, Tanzania

In Meru, Tanzania, technological and institutional change has turned milk into one of the most reliable and important sources of income for smallholder households. Decades of increased population density have caused land scarcity, leading smallholders to intensify their farming methods and land use, including introducing stall-fed exotic breeds of dairy cows. Meanwhile, a growing urban and rural d

Carbon isotope signature variability among cultured microalgae: Influence of species, nutrients and growth

In this study we have investigated whether the carbon isotopic signature differs between different groups and species of marine phytoplankton depending on growth phase, nutrient conditions and salinity. The 15 investigated algal species, representing the Bacillariophyceae, Chlorophyceae, Cryptophyceae, Cyanophyceae, Dinophyceae and Haptophyceae classes were grown in batch monocultures and analysed

Hard pion chiral perturbation theory for B -> pi and D -> pi formfactors

We use one-loop Heavy Meson Chiral Perturbation Theory (HMChPT) as well as a relativistic formulation to calculate the chiral logarithms m(pi)(2) log (m(pi)(2)/mu(2)) contributing to the formfactors of the semileptonic B -> pi decays at momentum transfer q(2) away from q(max)(2) = (m(B) - m(pi))(2). We give arguments why this chiral behaviour is reliable even in the energy regime with hard or fast

Changes in implant choice and surgical technique for hemiarthroplasty: 21,346 procedures from the Swedish Hip Arthroplasty Register 2005-2009

Background and purpose Treatment of displaced femoral neck fractures in Sweden has shifted towards more arthroplasties, especially hemiarthroplasties. We describe the hemiarthroplasty population in Sweden 2005 through 2009. Methods Since 2005, the Swedish Hip Arthroplasty Register has registered hemiarthroplasties on a national basis. We assessed hemiarthroplasty procedures in the Register 2005-20

Psychometric properties of the DISABKIDS Chronic Generic Module (DCGM-37) when used in children undergoing treatment for cancer

Background: The aim was to evaluate data quality and psychometric properties of an instrument for measurement of health-related quality of life: DISABKIDS Chronic Generic Module (DCGM-37) used in school-aged children with cancer. Methods: All school-children diagnosed with cancer in Sweden during a two-and-a-half year period were invited to participate in the study. Analysis was performed on combi

Induced hypothermia after cardiac arrest

Popular Abstract in Swedish Bakgrund: Nio av tio patienter som läggs in på sjukhus efter hjärtstillestånd utanför sjukhus är medvetslösa och behöver intensivvård. Dödligheten och risken för varaktiga hjärnskador är stor. Förhöjd kroppstemperatur under intensivvården är förenat med sämre överlevnad och hjärnfunktion. Nedkylning har i djurexperimentella och preliminära kliniska studier visat sig varThis thesis is based on studies of the clinical use of induced hypothermia as an intervention to reduce mortality and neurological impairment after cardiac arrest. After the publication of two trials indicating benefit of induced hypothermia, we developed a registry to assess outcome, possible adverse events and conduct of induced hypothermia when this intervention was implemented in a clinical p

High-resolution resonant inelastic soft X-ray scattering applied to liquids

The brilliance of modern synchrotron radiation sources and capabilities of new instrumentation facilitate resonant inelastic soft X-ray scattering of liquids and molecular materials with high spectral quality. Especially, when the energy resolution approaches the natural line widths a detailed analysis provides information about local potential surfaces, dynamic coupling between nuclear and electr

Interactions in the native state of monellin, which play a protective role against aggregation.

A series of recent studies have provided initial evidence about the role of specific intra-molecular interactions in maintaining proteins in their soluble state and in protecting them from aggregation. Here we show that the amino acid sequence of the protein monellin contains two aggregation-prone regions that are prevented from initiating aggregation by multiple non-covalent interactions that fav

Cost-effectiveness of insulin detemir compared with NPH insulin in people with type 2 diabetes in Denmark, Finland, Norway, and Sweden.

Abstract Objective: To assess the cost-effectiveness of insulin detemir compared with Neutral Protamine Hagedorn (NPH) insulin when initiating insulin treatment in people with type 2 diabetes mellitus (T2DM) in Denmark, Finland, Norway, and Sweden. Methods: Efficacy and safety data were derived from a 20-week multi-centre randomized controlled head-to-head clinical trial comparing insulin detemir

Ecological, Groundwater, and Human Health Risk Assessment in a Mining Region of Nicaragua

Macroinvertebrates and fish in the contaminated river are faced with a higher risk to suffer from exposure to Hg than humans eating contaminated fish and bacteria living in the groundwater. The river sediment is the most hazardous source for the macroinvertebrates, and macroinvertebrates make up the highest risk for fish. The distribution of body concentrations of Hg in fish in the mining areas of

The Laptev Sea walrus Odobenus rosmarus laptevi: an enigma revisited

The walrus (Odobenus rosmarus) is in some current systematic schemes divided into three subspecies: O. r. rosmarus in the North Atlantic, O. r. divergens in the North Pacific and O. r. laptevi in the Laptev Sea. These three subspecies have been described as differing in body size, but the taxonomic status of O. r. laptevi is disputed. The current study applies molecular and morphometric methods to

Professions as Science-Based Occupations

How professions should be defined and separated from other occupations has constituted an enduring theoretical and empirical problem in studies of the professions. In this article, the definitions of the so-called list approaches, involving enumerations of social attributes, are scrutinized. Weak-nesses are highlighted and analysed. It is argued that an alternative approach to the issue of definit