Filtyp
A strain of an alkaliphilic bacterium Bacillus halodurans was isolated from a water sample in Lake Shalla, a soda lake in the Ethiopian Rift Valley. From the culture of this isolate, B. halodurans S7, a xylanase which is active in a wide range of pH, with an optimum at about 9-9.5 was purified. When assayed at pH 10, the enzyme was optimally active at 70 ?C. The xylanase was free from any associat
The primary aim of the research project is to analyse the potential for the application of lidar and fluorescence techniques in building investigation, and also to establish a scientific remote-sensing method for surveying and analysing the historical facade that is non-destructive and can be used in-situ. The fluorescence lidar method uses point-monitoring and scanning of areas that can provide m
Cerium dioxide, or ceria, is a chemically stable oxygen ion conducting material with a capacity to store and release oxygen, and is therefore extensively used in combustion catalysts. The Cu-Ce-O system has been identified as one of the most active catalysts for the combustion of carbon monoxide. To study the catalytic oxidation of CO, we have synthesised model CuOx/CeO2 cata
Popular Abstract in Swedish Finkorniga moräner betraktas ofta som problemjordar inom anläggningsbranschen beroende på jordarnas känslighet för förändringar i vatteninnehåll och för deras tjälegenskaper. I dagsläget används endast en begränsad mängd finkorniga moräner i anläggningsbyggande. Huvudmålet med denna avhandling har varit att öka kunskapen om dessa jordars egenskaper och att finna/utvecklFine-grained soils are often regarded as problematic soils in earthworks because of their water- and frost sensitivity. Only limited amounts of fine-grained tills are used as earthwork material today. The main objective of this thesis is to improve the knowledge of how to use and also treat a fine-grained till, so that a greater amount can be utilised as earthwork material. To achieve an increasin
Background: Antipsychotic medication is effective for symptomatic treatment in schizophrenia-spectrum disorders. After symptom remission, continuation of antipsychotic treatment is associated with lower relapse rates and lower symptom severity compared to dose reduction/discontinuation. Therefore, most guidelines recommend continuation of treatment with antipsychotic medication for at least 1 year
Small island states, such as those in the Caribbean, are dependent on the nearshore marine ecosystem complex and its resources; the goods and services provided by seagrass and coral reef for example, are particularly indispensable to the tourism and fishing industries. In recognition of their valuable contributions and in an effort to promote sustainable use of marine resources, some nearshore are
This chapter investigates how the challenging questions and tensions caused by migrants and their universalist claims for inclusion, have been approached and resolved in liberal democracies. By regarding the development of populism as a real and dangerous political phenomenon that has a significant traction, the chapter asks whether populism adds something new to this approach and resolution. More
Understanding past methane dynamics in arctic wetlands and lakes is crucial for estimating future methane release. Methane fluxes from lake ecosystems have increasingly been studied, yet only few reconstructions of past methane emissions from lakes are available. In this study, we develop an approach to assess changes in methane availability in lakes based on delta C-13 of chitinous invertebrate r
Atmospheric organic aerosols are generally classified as primary and secondary (POA and SOA) according to their formation processes. An actual separation, however, is challenging when the timescales of emission and gas-to-particle formation overlap. The presence of SOA formation in biomass burning plumes leads to scientific questions about whether the oxidized fraction of biomass burning aerosol i
Background Acute pyelonephritis is a common infection in adult women, but there is a paucity of controlled trials of its treatment and the optimum duration of antibiotic treatment has not been properly defined. We compared the efficacy of ciprofloxacin for 7 days and 14 days in women with community-acquired acute pyelonephritis. Methods In a prospective, non-inferiority trial undertaken at 21 cent
Populärvetenskaplig sammanfattning: Särö Västerskog och Särö Nordanskog i norra Halland utgör de mest värdefulla och artrikaste skogsbestånden längs hela västkusten. De är klassade som riksintresse för naturvården. Den biologiska mångfalden är mycket stor och i skogarna förekommer många sällsynta och rödlistade arter. Som exempel kan nämnas den sällsynta idegranen (Taxus baccata). Särö täcks av reThe aim of this study was to make a pollenanalytical investigation of mor humus-profiles from the peninsula of Särö in northern Halland. The coastal forests are well preserved in this area and often hold a very interesting flora and fauna with many red-listed species. One can for example mention the rare species yew (Taxus baccata). The forests contain a mixture of deciduous and coniferous trees l
The archival sector of today is geared towards the public more than ever before. Students are now expected to actively participate in a process of life-long learning, to be more conscious about their cultural heritage and to develop an awareness of history. They shall also be able to evaluate different kinds of sources and approach source material critically. The Anglo-Saxon archives are internati
Old Scots pine (Pinus sylvestris L.) trees provide important habitat structures in boreal forest ecosystems, yet long-term intensive forest management in Sweden has made such trees increasingly rare and difficult to locate across large forest landscapes. Although field-based inventories can identify old trees reliably, they are time-consuming, costly, and spatially limited. This creates a need for
Background: Sedation is often provided to resuscitated out-of-hospital cardiac arrest (OHCA) patients to tolerate post-cardiac arrest care, including temperature management. However, the evidence of benefit or harm from routinely administered deep sedation after cardiac arrest is limited. The aim of this trial is to investigate the effects of continuous deep sedation compared to minimal sedation o
Aim: Allometric relationships, which describe plant growth patterns shaped by environmental conditions, reflect functional trade-offs and represent key functional traits that optimise adaptation, resource acquisition, stress tolerance and competition. Here, we assess how these allometric relationships and associated functional trade-offs drive ecosystem structure, functioning and competitive inter
INTRODUCTION: Total alloplastic replacement of the temporomandibular joint (TMJ) is a viable treatment option for severe TMJ disorders (TMDs) unresponsive to conservative approaches, as well as for reconstruction of congenital or acquired TMJ defects. However, clinical data on indications, outcomes, complications and long-term effects remain limited, and no global registry currently exists. This s
Precise synchronization of paleoclimate records is essential for inferring the dynamics and past evolution of the climate system. For the last glacial period, the time scales of ice cores from the Greenland and Antarctic ice sheets have been synchronized by the use of cosmogenic radionuclides, atmospheric gas concentrations, and traces of large volcanic eruptions. Here we identify the sulfate depo
INTRODUCTIONBoreal forests are crucial for mitigating global climate change by capturing and storing large amounts of atmospheric carbon dioxide. However, previously unmanaged primary boreal forests are being rapidly transformed to managed secondary forests to meet the rising global demand for materials and energy. Understanding the effects of boreal primary to managed secondary forest transformat
Kan flexibilitet i hushålls energisystem underlätta energiomställningen genom att dra nytta av volatila elpriser? Analysen av vår fallstudie visar att flexibla teknologier och framför allt värmeproduktion från el kan minska fossila utsläpp och driftkostnader, men ökar elanvändningen från nätet. Priserna på el har diskuterats frekvent de senaste åren och kraftiga prissvängningar har negativt påveThe increasing share of weather-dependent renewable energy in the European electricity system, as a consequence of the European Union’s climate ambitions, has led to increased spot price volatility, negatively affecting consumers due to unpredictability. This case study assesses how flexibility (including power-heat cross vector flexibility) in residential buildings can affect annual costs, emissi
