Institution
Jagiellonian University
Education•Krakow, Poland•
About: Jagiellonian University is a education organization based out in Krakow, Poland. It is known for research contribution in the topics: Population & Catalysis. The organization has 17438 authors who have published 44092 publications receiving 862633 citations. The organization is also known as: Academia Cracoviensis & Akademia Krakowska.
Papers published on a yearly basis
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ASTRON1, Leiden University2, Rhodes University3, University of Paris4, University of Hertfordshire5, University of Edinburgh6, University of Hamburg7, INAF8, Rutherford Appleton Laboratory9, Open University10, Paris Diderot University11, Jagiellonian University12, Chalmers University of Technology13, Radboud University Nijmegen14, Commonwealth Scientific and Industrial Research Organisation15, University of Manchester16, University of the Western Cape17, University of Oxford18, Kapteyn Astronomical Institute19, University of Amsterdam20, Institute of Cosmology and Gravitation, University of Portsmouth21, Joint Institute for VLBI in Europe22, University of Bologna23, University of Nottingham24, Ruhr University Bochum25, Mbarara University of Science and Technology26, Max Planck Society27, Centre national de la recherche scientifique28, University of La Laguna29, Spanish National Research Council30, University College Dublin31, Bielefeld University32
TL;DR: The LOFAR Two-metre Sky Survey (LoTSS) is an ongoing sensitive, high-resolution 120-168 MHz survey of the entire northern sky for which observations are now 20% complete as discussed by the authors.
Abstract: The LOFAR Two-metre Sky Survey (LoTSS) is an ongoing sensitive, high-resolution 120–168 MHz survey of the entire northern sky for which observations are now 20% complete. We present our first full-quality public data release. For this data release 424 square degrees, or 2% of the eventual coverage, in the region of the HETDEX Spring Field (right ascension 10h45m00s to 15h30m00s and declination 45°00′00″ to 57°00′00″) were mapped using a fully automated direction-dependent calibration and imaging pipeline that we developed. A total of 325 694 sources are detected with a signal of at least five times the noise, and the source density is a factor of ∼10 higher than the most sensitive existing very wide-area radio-continuum surveys. The median sensitivity is S 144 MHz = 71 μ Jy beam−1 and the point-source completeness is 90% at an integrated flux density of 0.45 mJy. The resolution of the images is 6″ and the positional accuracy is within 0.2″. This data release consists of a catalogue containing location, flux, and shape estimates together with 58 mosaic images that cover the catalogued area. In this paper we provide an overview of the data release with a focus on the processing of the LOFAR data and the characteristics of the resulting images. In two accompanying papers we provide the radio source associations and deblending and, where possible, the optical identifications of the radio sources together with the photometric redshifts and properties of the host galaxies. These data release papers are published together with a further ∼20 articles that highlight the scientific potential of LoTSS.
277 citations
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TL;DR: HADES as discussed by the authors is a versatile magnetic spectrometer aimed at studying dielectron production in pion, proton and heavy-ion-induced collisions, which includes a ring imaging gas Cherenkov detector for electron-hadron discrimination, a tracking system consisting of a set of 6 superconducting coils producing a toroidal field and drift chambers, and a multiplicity and electron trigger array for additional electron hadron discrimination.
Abstract: HADES is a versatile magnetic spectrometer aimed at studying dielectron production in pion, proton and heavy-ion-induced collisions. Its main features include a ring imaging gas Cherenkov detector for electron-hadron discrimination, a tracking system consisting of a set of 6 superconducting coils producing a toroidal field and drift chambers and a multiplicity and electron trigger array for additional electron-hadron discrimination and event characterization. A two-stage trigger system enhances events containing electrons. The physics program is focused on the investigation of hadron properties in nuclei and in the hot and dense hadronic matter. The detector system is characterized by an 85% azimuthal coverage over a polar angle interval from 18° to 85°, a single electron efficiency of 50% and a vector meson mass resolution of 2.5%. Identification of pions, kaons and protons is achieved combining time-of-flight and energy loss measurements over a large momentum range (0.1 < p < 1.0 GeV/c). This paper describes the main features and the performance of the detector system. © Societa Italiana di Fisica / Springer-Verlag 2009.
276 citations
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TL;DR: An ultracold atomic Bose gas in an optical lattice is shown to provide an ideal system for the controlled analysis of disordered Bose lattice gases and it is shown that even very low-intensity disorder-inducing lasers cause large modifications of the superfluid fraction of the system.
Abstract: An ultracold atomic Bose gas in an optical lattice is shown to provide an ideal system for the controlled analysis of disordered Bose lattice gases. This goal may be easily achieved under the current experimental conditions by introducing a pseudorandom potential created by a second additional lattice or, alternatively, by placing a speckle pattern on the main lattice. We show that, for a noncommensurable filling factor, in the strong-interaction limit, a controlled growing of the disorder drives a dynamical transition from superfluid to Bose-glass phase. Similarly, in the weak interaction limit, a dynamical transition from superfluid to Anderson-glass phase may be observed. In both regimes, we show that even very low-intensity disorder-inducing lasers cause large modifications of the superfluid fraction of the system.
276 citations
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TL;DR: In this paper, the authors studied the pulse profiles of the accreting X-ray millisecond pulsar SAX J1808.4-3658 at different energies.
Abstract: We study the pulse profiles of the accreting X-ray millisecond pulsar SAX J1808.4-3658 at different energies. The two main emission components, the blackbody and the Comptonized tail, which are clearly identified in the time-averaged spectrum, show strong variability with the first component lagging the second one. The observed variability can be explained if the emission is produced by Comptonization in a hot slab (radiative shock) of Thomson optical depth ∼0.3-1 at the neutron star surface. The blackbody radiation is strongly beamed along the normal to the slab (a 'knife'-like or 'pencil'-like emission pattern), while the Comptonized emission has a broader angular distribution peaking at about 50°-60° from the slab normal (a 'fan'-like pattern). We construct a detailed model of the X-ray production accounting for the Doppler boosting, relativistic aberration and gravitational light bending in the Schwarzschild space-time. We present also accurate analytical formulae for computations of the light curves from rapidly rotating neutron stars using the formalism recently developed by Beloborodov. Our model reproduces well the pulse profiles at different energies simultaneously, corresponding phase lags, as well as the time-averaged spectrum. We constrain the compact star mass to be bounded between 1.2 and 1.6 M O .. By fitting the observed profiles, we determine the radius of the compact object to be R ∼11 km if M = 1.6 M O ., while for M = 1.2 M O . the best-fitting radius is ∼6.5 km, indicating that the compact object in SAX J1808.4-3658 can be a strange star. We obtain a lower limit on the inclination of the system of 65°.
274 citations
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TL;DR: The clinical and experimental evidence supporting the new paradigm of citrullinated epitopes recognized by anti-citrullination protein antibodies is discussed and the potential mechanisms involved in linking periodontitis to RA are presented.
Abstract: Rheumatoid arthritis (RA), an autoimmune disease that affects ∼1% of the human population, is driven by autoantibodies that target modified self-epitopes, whereas ∼11% of the global adult population are affected by severe chronic periodontitis, a disease in which the commensal microflora on the tooth surface is replaced by a dysbiotic consortium of bacteria that promote the chronic inflammatory destruction of periodontal tissue. Despite differences in aetiology, RA and periodontitis are similar in terms of pathogenesis; both diseases involve chronic inflammation fuelled by pro-inflammatory cytokines, connective tissue breakdown and bone erosion. The two diseases also share risk factors such as smoking and ageing, and have strong epidemiological, serological and clinical associations. In light of the ground-breaking discovery that Porphyromonas gingivalis, a pivotal periodontal pathogen, is the only human pathogen known to express peptidylarginine deiminase, an enzyme that generates citrullinated epitopes that are recognized by anti-citrullinated protein antibodies, a new paradigm is emerging. In this Review, the clinical and experimental evidence supporting this paradigm is discussed and the potential mechanisms involved in linking periodontitis to RA are presented.
274 citations
Authors
Showing all 17729 results
Name | H-index | Papers | Citations |
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Roxana Mehran | 141 | 1378 | 99398 |
Brad Abbott | 137 | 1566 | 98604 |
M. Morii | 134 | 1664 | 102074 |
M. Franklin | 134 | 1581 | 95304 |
John Huth | 131 | 1087 | 85341 |
Wladyslaw Dabrowski | 129 | 990 | 79728 |
Rostislav Konoplich | 128 | 811 | 73790 |
Michel Vetterli | 128 | 901 | 76064 |
Francois Corriveau | 128 | 1022 | 75729 |
Christoph Falk Anders | 126 | 734 | 68828 |
Tomasz Bulik | 121 | 698 | 86211 |
Elzbieta Richter-Was | 118 | 793 | 69127 |
S. H. Robertson | 116 | 1311 | 58582 |
S. J. Chen | 116 | 1559 | 62804 |
David M. Stern | 107 | 271 | 47461 |