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Popular Abstract in Swedish Det norra barrskogsbältet, även kallat de boreala skogarna, sträcker sig runt hela norra halvklotet. Det utgör en tredjedel av den globala skogsytan, och innehåller hälften av den totala mängden kol finns lagrat i samtliga skogsekosystem. Trots de låga temperaturerna, den korta vegetationssäsongen och en liten mängd inkommande solenergi under året, är dessa ekosystem viIn boreal forests, the main factors limiting biomass production are the harsh climate, which combines a short growing season and low annual levels of incoming solar energy, and the limited availability of nitrogen. These limitations will be directly affected by climate change, and may in turn substantially affect the carbon budget of the boreal forests, the production of wood and biofuel, biodiver

Popular Abstract in Swedish Egenskaperna hos de material som utgör och omger oss, som t.ex. färg, struktur och kemiska egenskaper, bestäms av hur elektronerna som är en del av dess byggstenar, atomerna, är strukturerade. Ett sätt att undersöka elektronstrukturen är med hjälp den fotoelektriska effekten. Ljus, elektromagnetiska fält, kan beskrivas som en ström av ljuspartiklar, fotoner, som alla bä

The standard approach in feedback control systems is to sample and control periodically. For some applications, such as networked control systems or severely energy-constrained systems, it could be advantageous to instead use event-based control schemes. Aperiodic control (that is, event-based control with no specified minimum inter-event time) of first-order stochastic systems has been investigat

In arid and semi-arid areas, hydrosphere and biosphere suffer maximal disturbance and impacts of mankind during the development and utilizing processes. These impacts interact with each other and exert hostile effect on the environment. The transformation of the ecological environment depends mainly on the exploitation of water resource, economic development and the relative balance of environment

The objective was to determine the activation of white blood cells (WBCs) and endothelial cells in patients with healed venous ulcer and the influence of the standing position and of treatment with flavonoids. Ten patients with a healed venous ulcer were treated with flavonoid substance (90% diosmin), 1000 mg three times daily for 30 days. Blood samples were taken from arm and dorsal foot veins be

Fluorescence microscopy is introduced as a low cost quality control process for nanoimprint lithography. To depict imprinted structures down to 1 mum lateral size and to detect residues down to 100 nm lateral size, the standard printable polymer mr-18000 is labelled with less than 0.1 wt.% fluorescent dye. Three different types of stamps are used to determine the dependence of the shape and size o

A new perspective on the modelling of settling behaviour in water resource recovery facilities is introduced. The ultimate goal is to describe in a unified way the processes taking place both in primary settling tanks (PSTs) and secondary settling tanks (SSTs) for a more detailed operation and control. First, experimental evidence is provided, pointing out distributed particle properties (such as

Previous studies about the trends and sources of PV soft cost reduction have only offered a limited understanding of systemic aspects that drive this development. Drawing on concepts of sectoral innovation system theory, this study analyzes the evolution of the German PV sectoral system since the early 1990s, focusing specifically on key processes associated with the deployment of building-sited P

Modelling tools used in impact assessment procedures can be regarded as tools for communication between science and policy. In order to create an integrated system for modelling not only the scientific components have to be in place but also the science/policy interfaces in the assessment procedures have to be identified and their social dynamics understood.To make a system like SEAMLESS Integrate

The financial position of the medical insurance system of Japanese government has been worsened recently, and thus the Ministry of Health, Labor and Welfare has prompted the medical reforms to reconstruct the financial balance of the medical insurance system. As one of these efforts, a fixed payment system for medical services based on “DPC” (Diagnosis Procedure Combination) was introduced to a nu

Phase diagrams of poly(ethylene glycol)/polyacrylate/Na(2)SO(4) systems have been investigated with respect to polymer size and pH. Plasmid DNA from Escherichia coli can depending on pH and polymer molecular weight be directed to a poly(ethylene glycol) or to a polyacrylate-rich phase in an aqueous two-phase system formed by these polymers. Bovine serum albumin (BSA) and E. coli homogenate protein

The reduction of the (A root 5x root 5)R27 degrees surface oxide on Pd(100) and Pd75Ag25(100) surfaces by CO has been investigated by high-resolution X-ray photoelectron spectroscopy in combination with kinetic analysis using the Avrami-Erofeev theory. For both surfaces we observed faster reduction with increasing temperature. Kinetic analysis indicates that the reduction process is phase boundary

Mapping coastal inlets and their catchment areas is essential for management of the coastal zone. The coastal inlets are important channels of exchange of nutrients, water and sediment between the land and sea. They are also important elements of the coastal hydrological system and play a vital role in controlling the water flow into the sea during floods. Blocking of the coastal inlets is one of

This is a study about Turkey's membership negotiation to the European Union. The study focuses on the pre-negotiation phase between the EU and Turkey, and investigates if any asymmetry has influenced the negotiation and how that has occurred. Turkey over almost twenty years has had its eyes on the European Union, longing to become a member. The European Union has ambivalently been carefully po

Jag har studerat en klass i nian som haft som skoluppgift att skriva var sin egen låt. Förutom att observera hela klassen har jag dessutom följt fyra elever under deras musikskapande process. För att besvara min forskningsfråga om hur ungdomar gör när de skapar musik som skoluppgift, har jag använt mig av kvalitativ metod och jobbat med observationer och intervjuer. I teorin har jag valt att titta

Vindkraft är en förnyelsebar energikälla som ligger i tiden och är den energikälla som idag växer snabbast i världen. Eftersom Sverige har stor utbredning och långa kustpartier finns det goda möjligheter att utnyttja vind som energikälla. Sveriges riksdag har därför satt ett mål att ungefär tiodubbla energiutvinningen från vindkraft till år 2015. Den generella uppfattningen om vindkraft i Sverige

The purpose of this study was to evaluate the effect of dose reduction in digital mammography on the detection of two lesion types-malignant masses and clusters of microcalcifications. Two free-response observer studies were performed-one for each lesion type. Ninety screening images were retrospectively selected; each image was originally acquired under automatic exposure conditions, correspondin