2,194 research outputs found
The Life and Letters of William Sharp and "Fiona Macleod"
No full text"William Sharp (1855-1905) conducted one of the most audacious literary deceptions of his or any time. Sharp was a Scottish poet, novelist, biographer and editor who in 1893 began to write critically and commercially successful books under the name Fiona Macleod. This was far more than just a pseudonym: he corresponded as Macleod, enlisting his sister to provide the handwriting and address, and for more than a decade ""Fiona Macleod"" duped not only the general public but such literary luminaries as William Butler Yeats and, in America, E. C. Stedman.
Sharp wrote ""I feel another self within me now more than ever; it is as if I were possessed by a spirit who must speak out"". This three-volume collection brings together Sharp’s own correspondence – a fascinating trove in its own right, by a Victorian man of letters who was on intimate terms with writers including Dante Gabriel Rossetti, Walter Pater, and George Meredith – and the Fiona Macleod letters, which bring to life Sharp’s intriguing ""second self"".
With an introduction and detailed notes by William F. Halloran, this richly rewarding collection offers a wonderful insight into the literary landscape of the time, while also investigating a strange and underappreciated phenomenon of late-nineteenth-century English literature. It is essential for scholars of the period, and it is an illuminating read for anyone interested in authorship and identity.
High-Order Integral Equation Methods for Diffraction Problems Involving Screens and Apertures
No full textThis thesis presents a novel approach for the numerical solution of problems of diffraction by infinitely thin screens and apertures. The new methodology relies on combination of weighted versions of the classical operators associated with the Dirichlet and Neumann open-surface problems. In the two-dimensional case, a rigorous proof is presented, establishing that the new weighted formulations give rise to second-kind Fredholm integral equations, thus providing a generalization to open surfaces of the classical closed-surface Calderon formulae. High-order quadrature rules are introduced for the new weighted operators, both in the two-dimensional case as well as the scalar three-dimensional case. Used in conjunction with Krylov subspace iterative methods, these rules give rise to efficient and accurate numerical solvers which produce highly accurate solutions in small numbers of iterations, and whose performance is comparable to that arising from efficient high-order integral solvers recently introduced for closed-surface problems. Numerical results are presented for a wide range of frequencies and a variety of geometries in two- and three-dimensional space, including complex resonating structures as well as, for the first time, accurate numerical solutions of classical diffraction problems considered by the 19th-century pioneers: diffraction of high-frequency waves by the infinitely thin disc, the circular aperture, and the two-hole geometry inherent in Young's experiment
A fast binary feedback-based distributed adaptive carrier synchronisation for transmission among clusters of disconnected IoT nodes in smart spaces
No full textWe propose a transmission scheme among groups of disconnected loT devices in a smart space. In particular, we propose the use of a local random search implementation to speed up the synchronisation of carriers for distributed adaptive transmit beamforming. We achieve a sharp bound on the asymptotic carrier synchronisation time which is significantly lower than for previously proposed carrier synchronisation processes. Also, we consider the impact of environmental conditions in smart spaces on this synchronisation process in simulations and a case study. (C) 2013 Elsevier B.V. All rights reserved.Postdoc-Programme of the German Academic Exchange Service (DAAD
Hydrocanthus debilis Sharp 1882
No full textHydrocanthus debilis Sharp, 1882 Hydrocanthus debilis Sharp, 1882. Type locality: Brazil, Bahia / Amazonas, Amazonas Valley. Sharp 1882a: 281 (orig. descr.); Sharp 1882b: 8; Branden 1885: 18; Régimbart 1889: 263; Régimbart 1895: 343; Meinert 1901: 413; Régimbart 1904: 225; Zimmermann 1919: 118; Zimmermann 1920a: 14; Zimmermann 1920b: 225; Zimmermann 1921: 206; Zimmermann 1924: 1; Zimmermann 1925: 1; Zimmermann 1928: 167; Blackwelder 1944: 73; Ferreira-Jr. et al. 1998: 133; Benetti & Hamada 2003: 704; Ferreira-Jr. & Braga 2009: 325; Nilsson 2011: 22; Macchia et al. 2015: 113. Hydrocanthus (s. str.) debilis Sharp, 1882: Guignot 1957: 5; Young 1979: 2; Nilsson 2005: 111. Hydrocanthus (Guignocanthus) debilis Sharp, 1882: Young 1985: 98. Hydrocanthus finitimus Guignot, 1942. Type locality: French Guiana, Cayenne. Guignot 1942: 45 (orig. descr.); Spangler 1966: 387; Young 1985: 98 (N. Syn.). Hydrocanthus (s. str.) finitimus Guignot, 1942: Guignot 1956: 396; Guignot 1957: 5. Hydrocanthus rubiginosus Guignot, 1942 Syn. nov. Type locality: French Guiana, Cayenne. Guignot 1942: 47 (orig. descr.); Nilsson 2011: 26. Hydrocanthus (s. str.) rubiginosus Guignot, 1942: Guignot 1957: 5; Nilsson 2005: 111. Type material examined. Hydrocanthus debilis. Syntypes. “ BRAZIL, Bahia, 497, Sharp Coll. 1905–313” (1 ♂ 1 ♀ / BMNH). Hydrocanthus finitimus. Holotype ♂. “ GUIANA, Cayenne, III.1937, coll. Guignot ” (MNHN). Paratypes. “ GUIANA, Cayenne, III.1937, coll. Guignot ” (1 ♂ 2 ♀♀ / MNHN). Hydrocanthus rubiginosus. Holotype ♀ (Fig. 7). “ GUIANA, Cayenne, III.1937, coll. Guignot ” (MNHN). Paratypes. “ GUIANA, Cayenne, III.1937, coll. Guignot ” (2 ♀♀ / MNHN). Taxonomic notes. The comparison of type material of both taxa confirms that Hydrocanthus rubiginosus Guignot, 1942 is a junior subjective synonym of Hydrocanthus debilis Sharp, 1882. The particular combination of light reddish-brown pronotum and dark reddish-brown elytra with yellowish marmorations (Fig. 7b), prosternum laterally and medially setose, prosternal process entirely setose except along the apical margin, metaventrite laterally and apically setose (Figs 2d, 7c), and small size (4.00– 4.10 mm) is unique within the known females of this genus. Additional notes. In Nilsson’s catalogues (NILSSON 2005, 2011) the type locality for Hydrocanthus rubiginosus is reported as “ French Guiana> Abonnenc”, however in the original description (Guignot 1942), the author mentions “ Guyane française: Cayenne (Abonnenc)”; Abonnenc is reported as the collector (probably referring to Émile Abonnenc) not as the locality.Published as part of Guimarães, Bruno A. C., Ferreira-Jr, Nelson & Miller, Kelly B., 2018, On Hydrocanthus Say, 1823 (Coleoptera: Noteridae): description of a new species, two new synonyms and a key to Brazilian species, pp. 288-300 in Zootaxa 4508 (2) on pages 296-297, DOI: 10.11646/zootaxa.4508.2.10, http://zenodo.org/record/260695
On mappings preserving the sharp and star orders
No full textThe present paper is devoted to the study of linear maps preserving certain relations, such as the sharp partial order and the star partial order in semisimple Banach algebras and C*-algebras.The first author is partially supported by the Spanish Ministry of Science and Innovation, D.G.I. project no.
MTM2011-23843, and Junta de Andaluc´ıa grant FQM375. The second author is also supported by a Plan Propio de Investigaci´on grant from University of Almer´ıa, and Junta de Andaluc´ıa grant FQM 3737. The third author is partially supported by FEDER Funds through “Programa Operacional Factores de Competitividade – COMPETE” and by Portuguese Funds through FCT - “Funda¸c˜ao para a Ciˆencia e a Tecnologia”, within the project
PEst-OE/MAT/UI0013/2014
Endoscopy for repeatedly ingested sharp foreign bodies in patients with borderline personality disorder
No full textBackground: The general guidelines on the management of ingested foreign bodies (FBs) do not address specific aspects raised by psychiatric patients, particularly in patients with borderline personality disorders (BPD) who repeatedly ingest FBs. The aim of this survey was to collect data on experience and opinions on the management of FBs in psychiatric patients with BPD and to review the relevant literature.
Methods: A survey focusing on the indication and the timing of endoscopy for sharp FB removal in patients with BPD was e-mailed to 215 gastroenterologists, psychiatrists, and surgeons in Switzerland, Germany and Austria, discussing this clinical problem using a specific case vignette.
Results: Responses were received from 63 of 215 (29%) contacted physicians. Two-thirds of the respondents knew patients with BPD who had swallowed FBs repeatedly; 86% recommended removing sharp FBs endoscopically even in the case of repeated FB ingestion and 14% of respondents argued against emergent endoscopic FB removal in the case of repeated ingestions. Different specialities expressed partially divergent opinions regarding the management of these patients.
Conclusion: Repeated FB ingestions can be a problem in patients with BPD. Although published data show that the perforation risk of unremoved FBs is low, most clinicians support repeated endoscopies also in the case of repeated FB ingestions. Nevertheless, in selected cases, repeated endoscopies need to be discussed and an interdisciplinary consensus and/or the involvement of an ethical committee is advised
Relation between enstrophy production and geometry near the turbulent/non-turbulent interface in free shear flows
No full textIn many free shear flows, such as mixing layers, wakes and jets exhibit a sharp turbulent/non-turbulent interface (TNTI) separating regions of turbulent and non-turbulent or potential flow. In the present work the dependence of enstrophy production on the interface geometry near the TNTI is investigated by using direct numerical simulations (DNS) of a shear free turbulence (SFT) and a temporally developing planar jet (PJET). It is shown that the geometry of the TNTI has impacts on the mechanism governing enstrophy dynamics within the interface layer itself. In particular it is shown that enstrophy production within the turbulent sublayer is primarily associated with a convex shape of the interface both the SFT and PJET
Abrasivity by bentonite dispersions
No full textBentonites are used for various industrial applications. Their physicochemical properties depend on the mineralogical and chemical composition, the type of smectite, the grain size distribution, the cation exchange capacity (CEC), the dominant interlayer cation (Na(+), Ca(2+), Mg(2+)), and the layer charge density. All these parameters can be measured with acceptable precision. Nevertheless, the performance of a bentonite in a given application is often unpredictable. An additional relevant parameter is the "microfabric" describing the arrangement of minerals and/or the intergrowth of the minerals with glass. The microfabric is supposed to affect different bentonite properties such as swelling capacity and rheology. The present study focuses on the influence of different microfabrics on the abrasivity by bentonite dispersions. The abrasivity of bentonite dispersions mainly depended on two factors: 1) on the amount of hard and sharp accessory minerals and volcanic glass and 2) the grain size distribution, which was produced by different grinding techniques. The abrasivity increased with decreasing grain size, which was caused by breaking the hard components (minerals and glass) leading to an increased number of sharp edges. In addition, there was evidence for a subordinate influence of the type of exchangeable cations. This influence is explained by the different relative arrangements of smectite particles towards the surfaces of hard and sharp minerals. Na(+) exchanged glass rich samples showed higher abrasion values than the Ca(2+) exchanged samples. (C) 2009 Elsevier B.V. All rights reserved
Debt Financing and Sharp Currency Depreciations: Wholly vs. Partially Owned Multinational Affiliates
No full textThis paper provides empirical evidence on two potential costs of shared ownership of German affiliates abroad. First, in periods of currency crises, wholly-owned affiliates, in contrast to partially-owned affiliates, seem to circumvent financial constraints by accessing capital from their parent companies. In terms of differences in performance regarding sales of both types of firms, wholly-owned affiliates have a significantly better sales performance than partially-owned affiliates in periods of crises. This finding contributes to the evidence that FDI helps in mitigating the negative consequences of sharp currency depreciation, and stresses that this effect works especially through capital inflows to wholly-owned affiliates. Second, the debt financing of partially-owned affiliates is less sensitive to the tax rate suggesting that partially-owned affiliates rely less on international debt shifting than wholly-owned affiliates. This indicates that partially-owned affiliates are less flexible to exploit tax efficient strategies.foreign direct investment, capital structure, ownership structure, currency crises, corporate taxation
Voxeliser and Simulation Code for "Uncertainty Quantification of the Impact of Peripheral Arterial Disease on Abdominal Aortic Aneurysms in Blood Flow Simulations"
No full textThese are the original codes of the voxeliser (HemePure_tools) and fluid flow solver (HemePure) used to perform the blood flow simulations described in the paper titled "Uncertainty Quantification of the Impact of Peripheral Arterial Disease on Abdominal Aortic Aneurysms in Blood Flow Simulations" by Sharp C. Y. Lo, Jon W. S. McCullough, Xiao Xue, and Peter V. Coveney (2024), where the corresponding author is Prof. Peter V. Coveney ([email protected]).</p
- …
