Sökresultat

Filtyp

Din sökning på "*" gav 540032 sökträffar

Observation of Centrality-Dependent Acoplanarity for Muon Pairs Produced via Two-Photon Scattering in Pb+Pb Collisions at sNN =5.02 TeV with the ATLAS Detector

This Letter presents a measurement of γγ→μ+μ- production in Pb+Pb collisions recorded by the ATLAS detector at the Large Hadron Collider at sNN=5.02 TeV with an integrated luminosity of 0.49 nb-1. The azimuthal angle and transverse momentum correlations between the muons are measured as a function of collision centrality. The muon pairs are produced from γγ through the interaction of the large ele

Timing of eating across ten European countries - Results from the European Prospective Investigation into Cancer and Nutrition (EPIC) calibration study

ObjectiveTo examine timing of eating across ten European countries.DesignCross-sectional analysis of the European Prospective Investigation into Cancer and Nutrition (EPIC) calibration study using standardized 24 h diet recalls collected during 1995-2000. Eleven predefined food consumption occasions were assessed during the recall interview. We present time of consumption of meals and snacks as we

Self-Amplifying Feedbacks Accelerate Greening and Warming of the Arctic

Increased greening, higher vegetation productivity, and shrubification have been observed in Arctic tundra in response to recent warming. Such changes have affected the near‐surface climate through opposing biogeophysical feedbacks (BF) associated with changes to albedo and evapotranspiration. However, the likely spatiotemporal variations of BF to future climate change and the consequences for Arc

Coppinsiella and Seawardiella – two new genera of the Xanthorioideae (Teloschistaceae, lichen-forming Ascomycota)

The genera Coppinsiella and Seawardiella are described based on the combined phylogenetic analysis from ITS nrDNA, 28S nrLSU and 12S mtSSU sequences. The affinities of the new genera Orientophila, Athallia, Flavoplaca and Calogaya are discussed. The former Caloplaca lobulata group (or ‘Xanthoria lobulata-Gruppe’ sensu Steiner et Poelt 1982) found to be positioned in the Calogaya clade based on ITSThe genera Coppinsiella and Seawardiella are described based on the combined phylogenetic analysis from ITS nrDNA, 28S nrLSU and 12S mtSSU sequences. The affinities of the new genera Orientophila, Athallia, Flavoplaca and Calogaya are discussed. The former Caloplaca lobulata group (or ‘Xanthoria lobulata-Gruppe’ sensu Steiner et Poelt 1982) found to be positioned in the Calogaya clade based on ITS

Effects of III-V semiconductor nanowires on human lung cells

Due to unique electronic and optical properties, semiconductor nanowires (NW) are widely used in various opto-electronic devices. Concerns have been raised about using NW since they share morphological similarities with nanofibers, such as carbon nanotubes and asbestos. However, the effects of NW exposure on humans remain unknown and there is a pressing need to assess any possible NW toxicity. Dur

Language impairment in children with CI : An investigation of Swedish

In spite of earlier implantation, bilateral implants and advances in the care of deaf children with cochlear implants (CI) within-group variation in language skills is large. We use three tasks with predictive value of language impairment in Swedish to identify children with CI most at risk for persistent difficulties in language development, in need of language intervention. The clinical markers

Survival and risk of breast cancer recurrence after breast reconstruction with deep inferior epigastric perforator flap

Background: Women who undergo autologous breast reconstruction have been reported to have an increased risk of breast cancer recurrence compared with those who have mastectomy alone. It has been suggested that more extensive surgery possibly activates dormant micrometastases. The aim of this study was to evaluate whether delayed unilateral deep inferior epigastric perforator (DIEP) flap reconstruc

“Doing the Right Thing”: Identity Construction and Motivation of Border Police Officers in the Baltic Sea Area

Although border politics have been given much theoretical attention in recent years, empirical studies of identity construction among border police officers are less common. In 2014, a two-year collaborative project partly funded by the EU was initiated in order to increase international collaboration between border police officers in the Baltic Sea area. The participating organizations were borde

A two-step procedure to identify lexical elements of stance constructions in discourse from political blogs

The Brexit Blog Corpus (BBC) is a collection of texts extracted from political blogs, which, in a recent study, was annotated according to a cognitive-functional stance framework by two independent annotators (Annotator A and B) using semantic criteria (Simaki et al. 2017). The goal was to label the stance or stances taken based on the overall meaning of a set of utterances. The annotators were no

Genetic distance, trade, and the diffusion of development

The determinants of countries' long‐term income differences feature prominently in the literature. Spolaore and Wacziarg (The diffusion of development, Quarterly Journal of Economics, 2009, 124, 469–529) argue that cultural differences, measured by countries' genetic distance, are an important barrier to the diffusion of development from the world's technological frontier. We revisit their finding

Bioenergetic bypass using cell-permeable succinate, but not methylene blue, attenuates metformin-induced lactate production

BACKGROUND: Metformin is the most common pharmacological treatment for type 2 diabetes. It is considered safe but has been associated with the development of lactic acidosis under circumstances where plasma concentrations exceed therapeutic levels. Metformin-induced lactic acidosis has been linked to the drug's toxic effect on mitochondrial function. Current treatment strategies aim to remove the

Macromolecular Engineering by Surface-Initiated ATRP: : New Nanomaterials for Bioapplications

The objective of this thesis is to investigate the synthesis of well-defined polymer nanohybrid materials bearing desirable functionality via surface-initiated atom transfer radical polymerization (SI-ATRP) for potential bioapplications.SI-ATRP is an excellent controlled radical polymerization (CRP) method for the synthesis of polymer nanohybrid by growing polymer brushes (chains) from an interfac

A multidisciplinary approach: geophysics, hydrochemistry and hydrometeorology for addressing water security in semiarid alluvial fans

Water security offers to the local population an adequate quality and quantity of water for health, economy, livelihoods and ecosystems. Hence, achieving basic levels of water security should be a priority in areas where access to fresh water is scarce. The Punata alluvial fan (Bolivia) is a semiarid zone and an important agricultural zone, where the main source of water is groundwater. Therefore,

Electronic structure of epitaxial half-Heusler Co1-xNixTiSb across the semiconductor to metal transition

Here, we report on the growth, electronic, and surface properties of the electron-doped half-Heusler series Co1-xNixTiSb (001) grown by molecular beam epitaxy. High-quality epitaxial growth of thin films is achieved on InP (001) substrates using an InAlAs buffer layer for all nickel concentrations. The semiconductor to metal transition as a function of substitutional alloying was examined using el