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Budgerigars (Melopsittacus undulatus) and Bourke's parrots (Neopsephotus bourkii) are closely related birds with different activity patterns. Budgerigars are strictly diurnal while Bourke's parrots are active in dim twilight. Earlier studies show that the intensity threshold of colour vision is similar in both species while Bourke's parrots have larger eyes with a higher density of rods than budge

Popular Abstract in Swedish Vid 1990-talets början drabbades Sverige av en omfattande lågkonjunktur. De unga som då skulle etableras på arbetsmarknaden var födda kring 1970-talets mitt. De fick erfara arbetslöshet och socialbidragstagande i avsevärt högre omfattning än någon tidigare generation i den moderna svenska välfärdsstaten. Trots ett förbättrat arbetsmarknadsläge fanns en grupp unga vuxna In the early 1990s a severe economic recession struck Sweden. The generation about to establish themselves on the labour market at this time were born in the mid seventies. They experienced unemployment and welfare dependency to a considerably higher extent than any previous generation in the modern Swedish welfare state. Despite the recovery of the Swedish economy a group of young adults, now in

A small-angle X-ray scattering (SAXS) set-up has recently been developed at beamline I711 at the MAX II storage ring in Lund (Sweden). An overview of the required modifications is presented here together with a number of application examples. The accessible q range in a SAXS experiment is 0.009-0.3 A(-1) for the standard set-up but depends on the sample-to-detector distance, detector offset, beams

The complement system is activated in the vasculature during thrombotic and inflammatory conditions. Activation may be associated with chronic inflammation on the endothelial surface leading to complement deposition. Complement mutations allow uninhibited complement activation to occur on platelets, neutrophils, monocytes, and aggregates thereof, as well as on red blood cells and endothelial cells

Popular Abstract in Swedish Cancer är ett laddat ord, och för de flesta av oss är cancern inte längre bort än hos en nära släkting eller vän. Trots den gemensamma benämningen, är cancer är inte bara en sjukdom, utan ca 200 olika som alla har gemensamt att cellerna börjar dela sig okontrollerat. Cancer är väldigt vanligt och uppskattningsvis kommer var tredje person att drabbas av cancer under sin Early diagnosis and reliable prognosis and treatment prediction of breast cancer will ultimately lead to a decreased mortality rate. This can be achieved by identification of prognostic and treatment predictive biomarkers, and by understanding the mechanisms behind early changes in the breast. The cell cycle is a closely controlled process, involving multiple components with regulation on several

Objective. To describe neonatal outcome including the presence of congenital malformations in infants born to women substituted with thyroid hormones, and the maternal characteristics of these women. Design. Register study based on prospectively collected data in relation to delivery. Setting. Swedish Health Registers. Population. All pregnant women (n = 848,468) and all infants born (n = 861,989)

Informationsdelning mellan företag sker dagligen. För att optimera logistiken i försörjningskedjan utbyter företag alltifrån orderstatus och lagernivåer till produktionsplaner och tillväxtstrategier. Men är det lika enkelt som det låter? Vilken information bör företag egentligen dela för att förbättra sin logistik och därigenom öka effektivitet och minska kostnader?

This paper investigates the impact of scientific relatedness on knowledge dynamics in biotech at the city level during the period 1989-2008. We assess the extent to which the emergence of new research topics and the disappearance of existing topics in cities are dependent on their degree of scientific relatedness with existing topics in those cities. We make use of the rise and fall of title words

We studied bacterial and fungal colonization of submerged plant litter, using a known Si-accumulator (Equisetum arvense), in experimental microcosms during one month. We specifically addressed the microbial decomposer role concerning biogenic silica (bSiO2) dissolution from the degrading litter. To vary the rates and level of microbial colonization, the litter was combined with a range of mineral

In this article we propose a modification of the recently introduced divergence information criterion (DIC, Mattheou et al., 2009) for the determination of the order of an autoregressive process and show that it is an asymptotically unbiased estimator of the expected overall discrepancy, a nonnegative quantity that measures the distance between the true unknown model and a fitted approximating mod

We compare the optical response of wurtzite and zinc blende GaP nanowire arrays for varying geometry of the nanowires. We measure reflectance spectra of the arrays and extract from these measurements the absorption in the nanowires. To support our experimental findings and to allow for more detailed investigations of the optical response of the nanowire arrays than possible in experiments, we perf

Septic morbidity associated with advanced surgical and medical treatments is unacceptably high, and so is the incidence of complications occurring in connection with acute emergencies such as severe trauma and severe acute pancreatitis. Only considering the US, it will annually affect approximately (app) 300 million (mill) of a population of almost one million inhabitants and cause the death of mo

Chemotaxis inhibitory protein of Staphylococcus aureus (CHIPS) is a protein that binds and blocks the C5a receptor (C5aR) and formylated peptide receptor, thereby inhibiting the immune cell recruitment associated with inflammation. If CHIPS was less reactive with existing human antibodies, it would be a promising anti-inflammatory drug candidate. Therefore, we applied directed evolution and comput

Late Weichselian and early Holocene climatic and environmental changes are inferred from stable carbon and oxygen isotope records obtained on bulk and biogenic carbonates from the sediment sequence of Lake Lednica, western Poland. Along with sediment and pollen stratigraphic data, a wide range of carbonate components occurring in the sediments was analysed for delta C-13 and delta O-18, including