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Resolving the Structure of a Well-Ordered Hydroxyl Overlayer on In2O3(111) : Nanomanipulation and Theory

Changes in chemical and physical properties resulting from water adsorption play an important role in the characterization and performance of device-relevant materials. Studies of model oxides with well-characterized surfaces can provide detailed information that is vital for a general understanding of water-oxide interactions. In this work, we study single crystals of indium oxide, the prototypic

Wine ethanol 14C as a tracer for fossil fuel CO2 emissions in Europe : Measurements and model comparison

14C (radiocarbon) in atmospheric CO2 is the most direct tracer for the presence of fossil-fuel-derived CO2 (CO2-ff). We demonstrate the measurement of wine ethanol as a way to determine the relative regional atmospheric CO2-ff concentration compared to a background site ("regional CO2-ff excess") for specific harvest years. The carbon in wine ethanol is directly back traceable to the atmospheric C

A pre-LGM sandur at Fiskarheden in NW Dalarna, Sweden – sedimentology and glaciotectonic deformation.

The Fiskarheden quarry, situated in NW Dalarna, central Sweden, reveals thick coarse-grained sediments of Scott type facies association representing a sandur deposited in an ice-proximal proglacial environment. Optically Stimulated Luminescence (OSL) dating of the sandur sediments suggests a pre-Last Glacial Maximum (LGM) age. Most acquired ages are pre-Saalian (>200 ka) and we regard each of thes

Acidification of sandy grasslands - consequences for plant diversity

Questions: (1) Does soil acidification in calcareous sandy grasslands lead to loss of plant diversity? (2) What is the relationship between the soil content of lime and the plant availability of mineral nitrogen (N) and phosphorus (P) in sandy grasslands? Location: Sandy glaciofluvial deposits in south-eastern Sweden covered by xeric sand calcareous grasslands (EU habitat directive 6120). Methods:

Endothelial-leukocyte interactions

Popular Abstract in Swedish Trots att kroppen skyddas av ett hudlager på utsidan och av epitelceller i kroppens inre organ utsätts vi hela tiden för infektioner. När en vävnad blir infekterad börjar cellerna utsöndra inflammatoriska mediatorer som bland annat orsakar svullnad och rodnad. En inflammation kan också orsakas av till exempel slag eller brännskador. De inflammatoriska mediatorerna signaThis thesis describes early inflammatory responses involving interactions between leukocytes and the endothelial lining of the blood vessel wall. An adhesion molecule, E-selectin, which is upregulated on interleukin-1 activated endothelium, was found to mediate rolling between leukocytes and endothelial cells in vivo. Immunohistochemistry revealed that E-selectin was preferentially expressed in ve

On the nature and etiology of chronic achilles tendinopathy

The present studies included 362 consecutive patients and 147 healthy controls and were conducted to provide a rational basis for treatment and future research. The major lesion was a focal non-inflammatory tendon degeneration (tendinosis). Twenty per cent of the cases were complicated by a secondary partial rupture. The paratenon was normal. A study of tendon blood flow using laser Doppler flow

Effects of cycloheximide, brefeldin A, suramin, heparin and primaquine on proteoglycan and glycosaminoglycan biosynthesis in human embryonic skin fibroblasts

(1) We have isolated radiolabelled proteoglycans and glycosaminoglycans produced by human embryonic skin fibroblasts in the presence of (a) cycloheximide to inhibit protein synthesis or (b) brefeldin A to impede transport between the endoplasmic reticulum and the Golgi complex or (c) suramin, heparin or primaquine to interfere with internalization, recycling and degradation. Effects on glycosamino

The Tomquist Sea and Baltica-Avalonia docking

Early Ordovician (Late Arenig) limestones from the SW margin of Baltica (Scania-Bomholm) have multicomponent magnetic signatures, but high unblocking components predating folding, and the corresponding palaeomagnetic pole (latitude = 19degreesN, longitude = 051degreesE) compares well with Arenig reference poles from Baltica. Collectively, the Arenig poles demonstrate a midsoutherly latitudinal pos

Studies on energy dissipation in phycobilisomes using the Kennard-Stepanov relation between absoption and fluorescence emission spectra

Absorption and fluorescence emission spectra were measured at room temperature (ca. 22.degree.C) for solutions of phycocyanin-1, phycocyanin-2, and allophycocyanin from Phormidium luridum, and also for phycobilisome preparations from various blue-green algae (Anabaena variabilis, Nostoc muscorum strain A, Nostoc sp. strain Mac. Phormidium luridum). Kennard-Stepanov (KS) temperatures (T) were compu

Platination of full length tRNA(Ala) and truncated versions of the acceptor stem and anticodon loop.

Nuclear DNA is a well characterized target for many low molecular metal-based drugs, with cisplatin and related antineoplastic compounds as typical examples. Much less is known concerning to what extent targeting of RNA may influence the activity spectrum of these types of drugs. In a preliminary communication by us (Papsai et al., Dalton Trans., 2006, 3515) we were able to show that the folded, t

Oxytocin and oxytocin-receptor mRNA expression in the human gastrointestinal tract: a polymerase chain reaction study

Background/aim: Oxytocin (OT) has a wide range of effects throughout the body. However, the role of OT on the gastrointestinal (GI) tract has to be settled. So far, the few studies performed reveal no conclusive results. The aim of this study was to examine the expression of Of and OT-receptor mRNA in the human GI tract. Material and methods: Full-thickness biopsies from all segments of the GI tra

When and where does mortality occur in migratory birds? Direct evidence from long-term satellite tracking of raptors.

Information about when and where animals die is important to understand population regulation. In migratory animals, mortality might occur not only during the stationary periods (e.g. breeding and wintering) but also during the migration seasons. However, the relative importance of population limiting factors during different periods of the year remains poorly understood, and previous studies main

Danopolonian migmatization of Mesoproterozoic sedimentary rocks in southernmost Sweden: a SIMS zircon study

To assess the age and origin of the metasedimentary migmatites in southernmost Sweden and their relationships with the Mesoproterozoic granitoid magmatism in the area, we have dated migmatite zircon using the secondary ion mass spectrometry U-Pb method. The studied metasedimentary migmatites, here called the Noteboda migmatites, occur along the southwestern boundary of the 1442 Ma Taghusa granitoi

Moisture effects on temperature sensitivity of CO2 exchange in a subarctic heath ecosystem

Carbon fluxes between natural ecosystems and the atmosphere have received increased attention in recent years due to the impact they have on climate. In order to investigate independently how soil moisture and temperature control carbon fluxes into and out of a dry subarctic dwarf shrub dominated heath, monoliths containing soil and plants were incubated at three different moisture levels and subj

Environmental correlates of impaired lung function in non-smokers with severe alpha 1-antitrypsin deficiency (PiZZ)

BACKGROUND: Active smoking is the most important risk factor for pulmonary emphysema in subjects with severe alpha 1-antitrypsin (AAT) deficiency. The aim of this study was to analyse the effects of environmental risk factors other than active smoking on lung function and on respiratory symptoms in non-smoking PiZZ individuals. METHODS: Lifetime exposure to passive smoking, domiciliary use of a ke

Mitochondrial electron transport and plant stress.

Due to the sessile nature of plants, it is crucial for their survival and growth that they can handle a constantly changing, and thus stressful, ambient environment by modifying their structure and metabolism. The central metabolism of plants is characterized by many alternative options for metabolic pathways, which allow a wide range of adjustments of metabolic processes in response to environmen

Fragments of life and death : the biography of grinding and polishing stones found in long barrows at the Almhov burial site

The burial and gathering site Almhov was discovered as a result of large-scale archaeological excavations in southern Sweden revealing the remains of five long barrows, two dolmens and a large number of pits, rich in finds. Given the multitude of activities performed at the site including, for example, monument-building, pit-digging, burying, feasting and axe-manufacturing, the site can serve as a

Våldtäkt mot barn och sexuellt utnyttjande av barn - En kritisk granskning av gällande rätt

Uppsatsen kommer behandla gränsdragningen mellan brotten våldtäkt mot barn samt sexuellt utnyttjande av barn. För att besvara frågeställningarna beskrivs aktuella bestämmelser i brottsbalkens 6 kapitel, dess tillkomst och motiv för att sedan undersöka hur domstolarna idag tillämpar den gällande rätten. Undersökningen har till syfte att granska om domstolarna idag följer lagstiftarens intentioner. This essay will address the issue when it comes to distinguish the two crimes of child rape and sexual exploitation of a child. The purpose is to critically examine the law and see whether or not it is an appropriate use. To reach a conclusion, there will be a presentation of the current regulation in the sixth chapter of the Penal Code as well as a review regarding how the Swedish courts administ

Hållbarhetsredovisning - ett verktyg för förbättrat hållbarhetsarbete?

Julia Arvidson Hållbarhetsredovisning – Ett verktyg för förbättrat hållbarhetsarbete? Hållbarhetsredovisning har på kort tid vuxit fram som en självklar komponent i ett sunt och hållbart företagande. Nya EU-direktiv ställer krav på fler företag att redovisa för sin verksamhets ekonomiska, miljömässiga och sociala påverkan. Då antalet redovisande företag kommer att öka både i Sverige och i EuropSustainability reporting has emerged as a common practice of 21st-century business. A sustainability report is a report published by an organization that presents the economic, environmental and social impacts caused by its activities. The Global Reporting Initiative (GRI) is a non-profit organization with the mission to promote the transition to a sustainable global economy by providing a framewo