Trinity College, Dublin

About: Trinity College, Dublin is a education organization based out in Dublin, Dublin, Ireland. It is known for research contribution in the topics: Population & Context (language use). The organization has 20576 authors who have published 48296 publications receiving 1780313 citations.

Planck intermediate results - XXX. The angular power spectrum of polarized dust emission at intermediate and high Galactic latitudes

Abstract: The polarized thermal emission from diffuse Galactic dust is the main foreground present in measurements of the polarization of the cosmic microwave background (CMB) at frequencies above 100 GHz. In this paper we exploit the uniqueness of the Planck HFI polarization data from 100 to 353 GHz to measure the polarized dust angular power spectra C_l^(EE) and C_l^(BB) over the multipole range 40

Supersymmetric Vacua and Bethe Ansatz

Abstract: An announcement of some results of a longer paper where the supersymmetric vacua of two dimensional N=2 susy gauge theories with matter are shown to be in one-to-one correspondence with the eigenstates of integrable spin chain Hamiltonians. The Heisenberg spin chain is mapped to the two dimensional U(N) theory with fundamental hypermultiplets, the XXZ spin chain is mapped to the analogous three dimensional super-Yang-Mills theory compactified on a circle, the XYZ spin chain and eight-vertex model are related to the four dimensional theory compactified on a torus. The correspondence extends to any spin group, representations, boundary conditions, and inhomogeneity, it includes Sinh-Gordon and non-linear Schroedinger models as well as the dynamical spin chains such as the Hubbard model. Compactifications of four dimensional N=2 theories on a two-sphere lead to the instanton-corrected Bethe equations. We propose a completely novel way for the Yangian, quantum affine, and elliptic algebras to act as a symmetry of a union of quantum field theories. This paper accompanies arXiv:0901.4748

Percolation-dominated conductivity in a conjugated-polymer-carbon-nanotube composite

Abstract: The discovery two decades ago that polyacetylene could be made extremely conductive on doping with iodine or AsF5 ~Ref. 1! was the initial step that indicated that conjugated polymers may be an important alternative to inorganic semiconductors as optoelectronic materials. However, conventional doping of polymers tends to quench their luminescent properties by introducing nonradiative trapping states such as solitons, polarons, and bipolarons. 2 The key feature of conjugated polymers is the extended p-electron system in their backbone, which, due to Peierls distortion, results in a pseudoband gap. In these polymers conduction proceeds by variable range hopping of polarons. The band gap is approximately 1.5‐2.5 eV, hence conductivity and mobility are generally low. Carbon nanotubes, another form of conjugated carbon system, consist of one or more sheets of graphene wrapped around each other in concentric cylinders. Individually, nanotubes may be metallic or semiconducting, but in bulk they form a pseudometal with conductivity 3 of approximately 10 5 S/m. It is well known that the soot produced in a

ENETS Consensus Guidelines for High-Grade Gastroenteropancreatic Neuroendocrine Tumors and Neuroendocrine Carcinomas

Abstract: a Medical Oncology Department, Hospital Universitario Doce de Octubre, Madrid , Spain; b Department of Oncology, Haukeland University Hospital, Bergen , Norway; c Institut Gustave Roussy, Villejuif , and d Oncologie Médicale, Hôpitaux Universitaires Paris Nord Val de Seine, Paris , France; e Department of Hepatology and Gastroenterology, Campus Virchow Klinikum, Charité Universitätsmedizin Berlin, Berlin , Germany; f Department of Surgery, Medical University of Vienna, Vienna , Austria; g Department of Oncology, First Faculty of Medicine and General Teaching Hospital, Prague , Czech Republic; h Neuroendocrine Tumour Unit, Royal Free Hospital, London , UK; i Institut für Pathologie und Zytologie, St. Vincenz Krankenhaus, Limburg , Germany; j Department of Radiology, Faculty of Medical Sciences, University of Warmia and Mazury, Olsztyn , Poland; k Neuroendocrine Tumour Unit, Royal Free Hospital, London , UK; l NET Centre, St. Vincent’s University and Department of Clinical Medicine, St. James Hospital and Trinity College, Dublin , Ireland; m Institute of Pathology, University of Bern, Bern , Switzerland

The interaction of bacterial pathogens with platelets.

Abstract: In recent years, the frequency of serious cardiovascular infections such as endocarditis has increased, particularly in association with nosocomially acquired antibiotic-resistant pathogens. Growing evidence suggests a crucial role for the interaction of bacteria with human platelets in the pathogenesis of cardiovascular infections. Here, we review the nature of the interactions between platelets and bacteria, and the role of these interactions in the pathogenesis of endocarditis and other cardiovascular diseases.