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The GAIA astrometric mission has recently been approved as one of thenext two ``cornerstones'' of ESA's science programme, with a launch datetarget of not later than mid-2012. GAIA will provide positional andradial velocity measurements with the accuracies needed to produce astereoscopic and kinematic census of about one billion stars throughoutour Galaxy (and into the Local Group), amounting to a
Large-scale comparative genomics in harness with proteomics has substantiated fundamental features of eukaryote cellular evolution. The evolutionary trajectory of modern eukaryotes is distinct from that of prokaryotes. Data from many sources give no direct evidence that eukaryotes evolved by genome fusion between archaea and bacteria. Comparative genomics shows that, under certain ecological setti
Popular AbstractSyftet med avhandlingen är att bidra med ny kunskap till det forskningsområde inom ekonomisk geografi som behandlar problem kopplade till industriell dynamik, rumslig organisering av industriell verksamhet och regional näringspolitik. Genom att studera företags strategier och relationer till andra aktörer i och utanför hemmaregionen bidrar avhandlingen till en ökad förståelse för dThe dissertation aims at making a contribution to the field of industrial organization/dynamics, spatial organization of industries and regional policy. This has been done by paying more attention to the strategies of the firm and to the link between the firms, the industry as well as the region and the implications for regional policy. More specifically, the dissertation makes a contribution to e
A general model for pressure drop calculations in siphons and riser tubes has been developed. The model takes into account different physical flow phenomena such as inlet pressure drop and pressure drop in the tube. For each phenomenon, we applied theory and established correlations to calculate the separate accelerational, frictional, gravitational, and centrifugal pressure drops. Model results a
This chapter describes the utilization of recent extraction techniques such as supercritical fluid extraction, pressurized liquid extraction and microwave-assisted extraction for the determination of persistent organic pollutants in food and feed samples. These techniques have been developed because the extraction step can severely limit the entire analytical procedure. Several food crises, for ex
After the initial reports of free-floating cultures of neural stem cells termed neurospheres (1,2), a wide array of studies using this promising culture system emerged. In theory, this was a near-perfect system for large-scale production of neural cells for use in cell replacement therapies and to assay for and characterize neural stem cells. More than a decade later, after rigorous scrutiny and a
Fifty years after the foundation of the Combustion Institute and almost 150 years after Michael Faraday's famous lectures on the combustion of a candle, combustion diagnostics have come a long way from visual inspection of a flame to detailed analysis of a combustion process with a multitude of sophisticated techniques, often using lasers. The extended knowledge on combustion phenomena gained by a
[1] Vigorous debate still surrounds the cloud electrification process and unexplained regional variations in lightning activity. Here, we show that climatological maxima in lightning activity are associated with small effective diameter D-e of ice crystals near cumulonimbus cloud tops. This relationship, unlike lightning's more well-known relationship with cloud top height, is consistent over land
Neuronal connections and cortical maps are continuously remodeled by our experience. Knowledge of the potential capabilityof the brain to compensate for lesions is a prerequisite for optimal stroke rehabilitation strategies. Experimental focal cortical lesions induce changes in adjacent cortex and in the contralateral hemisphere. Neuroimaging studies in stroke patients indicate altered poststroke
This paper addresses how oil price changes affect the Oslo Stock Exchange. Multiple linear regressions with eight explanatory variables have been used to investigate the relationship between oil and the Oslo Stock Exchange between 1990-2009. The time period has also been divided into two sub periods to investigate if the effects of oil price changes have become more prominent over the years. After
Klimatförändringar har under de senaste decennierna blivit ett allt hetare forskningsämne och man har då även studerat hur klimatet förändrats genom årmiljonerna. Ett spännande kapitel i jordens historia är ordovicium som karaktäriserades som en växthusvärld med koldioxidhalter nära tjugo gånger dagens. Denna varma period avslutades med en global istid som resulterade i ett av de största massutdöeClimate change has become an increasingly important subject in geological research as past climates can teach us about the global climate systems. This thesis is a literature study on natural climate archives with examples from the Late Ordovician Boda Event. The Ordovician Period represented a greenhouse world with atmospheric CO2 levels almost twenty times higher then today. The climate became c
Development and how to reach economic growth have been discussed and talked about since the Industrial revolution in Europe pushed productivity and wages up but the models have changed over time and space. The most successful ones seems to build on traditional patterns of agriculture and growing domestic markets, but with a growing global market and new players on the world market can it be that t
An earthshine telescope has been designed and is being fabricated at Lund Observatory in collaboration with the Danish Meteorological Institute. The instrument will measure the albedo of the Earth by observing the Moon in white light and in certain spectral bands. The measurement is based on relative photometry of the dark and bright sides of the Moon, so the optical design of the telescope has be
Abortion is an important aspect of the fertility decision and the impact of economic conditions on the wellbeing of individuals and families. This study investigates the relationship between business cycle indicators in the context of women’s growing importance in Sweden’s labor market and economy. It finds that female relative wages have had the strongest impact on increasing abortion demand. The
Background: Plasmodium falciparum EBA175 and PfRh2 belong to two main families involved in parasite invasion, and both are potential vaccine candidates. Current knowledge is limited regarding which target antigens and subclasses of antibodies are actually important for protection, and how naturally acquired immunity is achieved. Methods: Repeated blood samples were collected from individuals in Ni
Urinary cadmium (U-Cd) sampling can be done either by 24-h urine or spot urine sampling, and adjustment for dilution is usually needed. The choice of sampling period and adjustment technique could, however, potentially induce bias. The aim of the study was to compare 24-h urine and spot urine sampling and two dilution adjustment techniques, when assessing U-Cd. Separate 24-h urine (U24) and timed
In this talk I present a short review of string hadronization, parton cascades, multiple scattering, final states, and underlying events.
Immunocytochemistry for transactive response binding protein-43 (TDP43) was assessed in the granular cell layer of the dentate gyrus in 250 cases displaying hippocampal pathology identified by haematoxylin-eosin staining. 18%, nearly one in five displayed TDP43 immunoreactive pathology in the granular cell layer of hippocampus. This percentage increased to 43% when only subjects with hippocampal p
