49,372 research outputs found
Link-scaling
No full text<p>Analysis source code and data that accompanies the paper "Linking scaling laws across eukaryotes", by Ian A. Hatton, Andy P. Dobson, David Storch, Eric D. Galbraith and Michel Loreau</p>
A 2 h periodic variation in the low-mass X-ray binary Ser X-1
No full textSpectroscopy of the low-mass X-ray binary Ser X-1 using the Gran Telescopio Canarias have revealed a ?2 h periodic variability that is present in the three strongest emission lines. We tentatively interpret this variability as due to orbital motion, making it the first indication of the orbital period of Ser X-1. Together with the fact that the emission lines are remarkably narrow, but still resolved, we show that a main-sequence K dwarf together with a canonical 1.4 M? neutron star gives a good description of the system. In this scenario, the most likely place for the emission lines to arise is the accretion disc, instead of a localized region in the binary (such as the irradiated surface or the stream-impact point), and their narrowness is due instead to the low inclination (?10°) of Ser X-1
Extracting Boer-Mulders functions from p+D Drell-Yan processes
No full textWe extract the Boer- Mulders functions of valence and sea quarks in the proton from unpolarized p + D Drell- Yan data measured by the FNAL E866 Collaboration. Using these Boer- Mulders functions, we calculate the cos2 phi asymmetries in unpolarized pp Drell- Yan processes, both for the FNAL E866/ NuSea and the BNL Relativistic Heavy Ion Collider experiments. We also estimate the cos2 phi asymmetries in the unpolarized p (P) over bar Drell- Yan processes at GSI.Astronomy & AstrophysicsPhysics, Particles & FieldsSCI(E)37ARTICLE5null7
Synthesis of non glycosidic nucleobase-sugar mimetics
No full textBiologically active organic molecules acting as nucleoside mimics are frequently encountered in pharmaceutical research. They are either synthetic heterocycles, which miss the sugar-derived interactions with the active site of the nucleoside-binding protein, or natural products containing a glycosidic linkage, which may cause bioavailability and metabolic stability problems. We report here the concept of synthetic full nucleoside mimics, including both a N-containing nucleobase-like portion and a sugar-like moiety, where the latter consists of 5- and 6-membered carbacycles connected by a more stable and drug-like C-N bond to the nucleobase mimic. Compounds 14,16 (indolinones), 21 and 23 (benzimidazolones) have been prepared as model compounds. (C) 2009 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved
Oxford, Bodelian Library, Hatton 116 (5136): Ælfric, from "Catholic Homilies" I, other Homilies, "Life of St. Chad"
No full text386. Oxford, Bodleian Library, Hatton 116 (5136)
Ælfric, from "Catholic Homilies" I, other Homilies,
"Life of St. Chad"
[Ker 333, Gneuss-]
HISTORY: The single scribe is dated to the first half of the 12c by Ker, who characterizes the hand as "a type found commonly in West of England manuscripts of s. xii" ( Cat., p. 403). The contents, predominantly by JElfric, provide a clue to place of origin. They are, first, a collection of homilies for saints' days from an augmented version of the first series of Catholic Homilies (a similar sequence occurs in Cambridge, Corpus Christi College 188 [37]), then a collection of homilies on general themes (a similar sequence occurs in Cambridge, Corpus Christi College 178 [35], with which Hatton 116 shares a distinctive form of two homilies, items 19 and 20, one of which is also shared by London, Lambeth Palace Library 487 [317]). Pope (1967-68: 68-69) infers that Hatton 116 draws the second part of its text from an ancestor of Cambridge, Corpus Christi College 178, itself a manuscript of unknown place of origin but with a Worcester provenance and concludes cautiously of Hatton 116, "Its relation to R [ Cambridge, Corpus Christi College 178] suggests that it was written in the neighbourhood of Worcester, but not necessarily at Worcester itself " (1967-68: 70). Subsequently, Hatton 116 was certainly at Worcester by the 13c, for it received extensive glosses throughout by the "tremulous hand:' It was still at Worcester in 1622-23, since it was included in Young's catalogue of the Cathedral manuscripts, no. 320 (Young, ed. Atkins and Ker 1944).
The manuscript belonged to Christopher, Lord Hatton, in 1644 (Ker, Cat., p. 406). The present binding, dated by Ker to the 17 /18c ( Cat., p. 406), associates the manuscript with Oxford, Bodleian Library Hatton 113+114 [ 384a/b] ( a related pair of manuscripts) and Oxford, Bodleian Library Hatton 115 [385], with which it was acquired by the Bodleian from Sir Christopher Hatton in 1675 (Madan 1922: 968). This association may explain the inscription on p. 1, "Saxon | Homiles | tōm 3" in what Ker characterizes as "an uneducated title-writing hand which occurs in other Hatton manuscripts" (Cat., p. 406). Page 1 is headed 'D' and the manuscript is referred to by this siglum in 17c cross-references in other Hatton manuscripts (Ker, Cat., pp. 403-4). Occasional early modern annotations within the manuscript also reflect this association: at p, 327/14, there is a note in an early modern hand, with a cross-reference to 'C. 131. b' (= Hatton 115, f. 131v). Another such cross-reference occurs at p. 373, at the beginning of item 22, DE SEPTI.FORMI SPIRITU, where 'A. 23: is written in the margin, alluding to another copy in Hatton 113, f. 27r, while a note in the margin of p. 374 indicates Ælfric's authorship and points to the preface of "On the Old Testament:' An annotation at the end, at the foot of p. 395, is by Thomas Barlow.
The manuscript formerly bore the Bodleian designation Junius 24, as remains in the ink inscription on p. i ('MS Junii | 24' struck through in pencil [not on film]) and in the ink designation, '24; written at the head of p. 1 beside the 'D'. It is number 5136 in Madan 1922, as is noted by a sticker on the inside front cover with the designation 'S.C. 5136'. The current classification, 'MS. Hatton | 116; is also cleanly inked on the inside front cover. The Bodleian Library's mark of ownership is stamped on the lower margin of pp. 1, 116, 207, 333, and 375, and in the center of pp. 396,398,400, and 402
Diamonds, gold and crime displacement: Hatton Garden, and the evolution of organised crime in the UK
No full textThe 2015 Hatton Garden Heist was described as the ‘largest burglary in English legal history’. However, the global attention that this spectacular crime attracted to ‘The Garden’ tended to concentrate upon the value of the stolen goods and the vintage of the burglars. What has been ignored is how the burglary shone a spotlight into Hatton Garden itself, as an area with a unique ‘upperworld’ commercial profile and skills cluster that we identify as an incubator and facilitator for organised crime. The Garden is the UK’s foremost jewellery production and retail centre and this paper seeks to explore how Hatton Garden’s businesses integrated with a fluid criminal population to transition, through hosting lucrative (and bureaucratically complex) VAT gold frauds from 1980 to the early 1990s, to become a major base for sophisticated acquisitive criminal activities. Based on extensive interviews over a thirty year period, evidence from a personal research archive and public records, this paper details a cultural community with a unique criminal profile due to the particularities of its geographical location, ethnic composition, trading culture, skills base and international connections. The processes and structures that facilitate criminal markets are largely under-researched (Antonopoulos et al. 2015: 11), and this paper considers how elements of Hatton Garden’s ‘upperworld’ businesses integrated with project criminals, displaced by policing strategies, to effect this transition
Real-space imaging of confined magnetic skyrmion tubes
No full textThis repository contains the scripts and notebooks to reproduce the figures, simulations and numerical data shown in Real-space Imaging of Confined Magnetic Skyrmion Tubes by M. T. Birch, D. Cortés-Ortuño, L. A. Turnbull, M. N. Wilson, F. Groß, N. Träger, A. Laurenson, N. Bukin, S. H. Moody, M. Weigand, G. Schütz, H. Popescu, R. Fan, P. Steadman, J. A. T. Verezhak, G. Balakrishnan, J. C. Loudon, A. C. Twitchett-Harrison, O. Hovorka, H. Fangohr, F. Ogrin, J. Gräfe and P. D. Hatton.
Both simulation and experimental data analysis are performed using Python with the Matplotlib, Jupyter, Scipy, Numpy and h5py libraries.
Jupyter notebooks are provided to process the experimental data and reproduce the STXM, X-Ray Holography and LTEM images, which are shown as Figures 3, 4 and 5 in the paper.
Simulation scripts are based on the finite difference micromagnetic code OOMMF with the extension to simulate DMI for materials with symmetry class T: [oommf-extension-dmi-t](https://github.com/joommf/oommf-extension-dmi-t)
The analysis of OOMMF's output files, which are in the `OMF` format, are processed using the [OOMMFPy](https://github.com/davidcortesortuno/oommfpy) library, which can calculate the topological charge in a 2D slice.
Three-dimensional visualisations of the magnetic states are performed using Paraview. In order to get VTK files for visualisation, convert the `OMF` files into `.vtk` using the `OOMMFPy` library.
Latest version of this Data Set can be found at the Github repository:
https://github.com/davidcortesortuno/paper-2020_real-space_imaging_of_confined_magnetic_skyrmion_tubes</p
Understanding domain symmetry in vanadium oxide phthalocyanine monolayers on Au (111)
No full textUnderstanding the growth of organic semiconductors on solid surfaces is of key importance for the field of organic electronics. Non planar phthalocyanines have shown great promise in organic photovoltaic (OPV) applications, but little of the fundamental surface characterization to understand their structure and properties has been performed. Acquiring a deeper understanding of the molecule/substrate interaction in small molecule systems is a vital step in controlling structure/property relationships. Here we characterize the vanadium oxide phthalocyanine (VOPc)/Au (111) surface using a combination of low energy electron diffraction (LEED) and scanning tunneling microscopy (STM), obtaining complex diffraction patterns which can be understood using two dimensional fast Fourier transform (2D-FFT) analysis of STM images. These measurements reveal coexistence of three symmetrically equivalent in-plane orientations with respect to the substrate, each of which is imaged simultaneously within a single area. Combining scanning probe and diffraction measurements allows symmetrically related domains to be visualized and structurally analyzed, providing fundamental information useful for the structural engineering of non-planar phthalocyanine interfaces
Oxford, Bodleian Library, MS. Hatton 113 (5210): "St. Wulstan's Homiliary," Part 1
No full text384a. Oxford, Bodleian Library, MS. Hatton 113 (5210)
"St. Wulstan's Homiliary," Part 1
[Ker 331, Gneuss 637]
HISTORY: Hatton 113 appears to have been copied for, and used by, St. Wulstan, bishop of Worcester (1062-1095): several of the obits have Worcester connections and three are for close relations of Wulstan's, the year of his ordination as bishop is noted, and the letter on f. ii recto summons him to the Council of Winchester. The latest obit in the original hand is for the year 1063 and the kalendrical tables are for the years 1064-1095 (with 1062-1063 added) and 1056-1083, suggesting a date of copying within the range 1064-1083, and most likely at the earlier end of the range, near the time of Wulstan's consecration. McIntyre (1978) says it was probably between 1062-1070. With Hatton 114 [384b], Hatton 113 forms a large collection of homilies, which was possibly first separated into two volumes around 1200, Pollard's (1975) date for the binding of Hatton 113, and approximately the date (early 13c) that a separate table of contents was added in the margins of Hatton 114, ff. 9v-10r (see Ker 1937). Hatton 113 was probably intended as a continuation of Bodleian Library, Junius 121 [391], a collection of ecclesiastical institutes and homilies: the quire signatures which end at 'n' in Junius 121, begin at 'p' here. The strong association with Archbishop Wtilfstan in Junius 121 also continues in this volume. Hatton 113 is the principal source for Wulfstan's sermons, used extensively by Napier (1883) and Bethurum (1957) in their editions. Those on ff. 1-115 are homilies for any occasion, mainly Wulfstan or pseudo Wulfstan, but the three beginning on ff. 80v, 94v, and 102v are by Ælfric; those on ff. 115-144 (and continuing in Hatton 114), for fixed festivals early in the year, are all by .tElfric. McIntyre (1978) notes that the characteristic script of these volumes and the specific Worcester references in Hatton 113 confirm that they were written at Worcester, and she uses Hatton 113 as one of her fixed points. Glosses and annotations in the tremulous hand, first half of the 13c, confirm that it remained in Worcester. In the 16c an inscription, 'Liber Ecclesiæ Wygorn,' was added in the top margin of f. ii recto, now erased. Also in the 16c the manuscript was annotated by John Joscelyn (1529-1603) and used for his A-S glossaries in London, Lambeth Palace 692, f. 37. He copied obits from the calendar, ff. iii recto-viii verso, into London, British Library, Cotton Vitellius D. vii, f. 48. It was still part of the Worcester Cathedral collection in 1622-1623 when Patrick Young made his catalogue and described it (no. 318; see Atkins and Ker 1944). It was borrowed by Christopher, Lord Hatton, along with the other manuscripts which now form the Hatton collection in the Bodleian, sometime before August 1644 when it was indexed by Dugdale (see Bodleian Library, Dugdale 29, f. iv verso). After Hatton's death on 4 July 1670, Hatton 113, 114, 115, and 116 were kept by his son, and not sold like the rest of the collection. In 1675 he gave all four manuscripts to the Bodleian, but they, and Junius 121, were lent to Dr. Thomas Marshall and by him to Junius. They returned to the Bodleian as part of the Junius collection after Junius's death in 1678, hence the earlier, erroneous shelfmark, Junius 99
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