Search results for "Clos"
showing 10 items of 1439 documents
Surgical management of acute angle-closure glaucoma after toric implantable contact lens implantation
2006
A case of pupillary block after implantation of an implantable contact lens (ICL) is reported, and surgical management and prevention are discussed. In a myopic patient, the best corrected visual acuity in the right eye was 20/50 with -15.50 -3.00 x 175. After uneventful implantation of an ICL, painful acute glaucoma developed with an intraocular pressure beyond measurable values. Apparent anterior vaulting of the ICL suggested a sizing problem. In a situation of a mid-wide dilated pupil, immediate explantation of the ICL was performed. Then, using a preoperative iris photography as guidance, an anterior chamber iris-claw toric phakic intraocular lens was implanted. On postoperative examina…
Reporting of Intellectual Capital: evidence from the Italian Banking Sector
2014
The transition from an economy based on production towards a knowledge-based economy has highlighted the crucial role of Intellectual Capital (IC) in the firm’s financial performance. Intellectual Capital is a business resource that includes know-how, patents, internal and external relationships. IC is widely acknowledged as one of the most critical resources which organizations rely on to improve their efficacy and efficiency, and hence help to improve the value creation and competitive advantage (de Pablos, 2003). There are several empirical studies that examined the quantity and the nature of IC information disclosure in annual reports in different industries and countries (Guthrie and P…
Vulnerability Black Markets: Empirical Evidence and Scenario Simulation
2009
This paper discusses the manifest characteristics of online Vulnerability Black Markets (VBM), insider actors, interactions and mechanisms, obtained from masked observation. Because VBM transactions are hidden from general view, we trace their precursors as secondary evidence of their development and activity. More general attributes of VBMs and the exploits they discuss are identified. Finally, we introduce a simulation model that captures how vulnerability discoveries may be placed in a dual legal-black market context. We perform simulations and find that if legal markets expose vulnerabilities that go unresolved, the security and quality of software may suffer more than in the absence of…
Long Term Results of Bladder Exstrophy
1999
After primary bladder closure or urinary diversion, other factors apart from the reconstruction gain importance for individuals with the exstrophy-epispadias complex: social integration and, after reaching puberty, sexuality and fertility.
A reverse engineering approach to measure the deformations of a sailing yacht
2016
In this work, a multidisciplinary experience, aimed to study the permanent deformations of the hull of a regatta sailing yacht is described. In particular, a procedure to compare two different surfaces of the hull of a small sailing yacht, designed and manufactured at the University of Palermo, has been developed. The first one represents the original CAD model while the second one has been obtained by means of a reverse engineering approach. The reverse engineering process was performed through an automatic close-range photogrammetry survey, that has allowed to obtain very accurate measures of the hull, and a 3D modelling step by the well-known 3D computer graphics software Rhinoceros. The…
Four- and five-phase peridotites from a continental rift system: evidence for upper mantle uplift and cooling at the Ross Sea margin (Antarctica)
1992
Upper mantle plagioclase+spinel- and spinel-peridotite xenoliths occur in basanitic and tephritic lavas of the 2.7 my to Recent Mt. Melbourne Volcanic Field (Antarctica). This field belongs to the Cenozoic McMurdo volcanic group which is located between the deep western trough of the Ross Sea rift system and the uplifted rift shoulder of the Transantarctic Mountains. Our samples cover the transition zone between rift and shoulder. We examined texture and composition of plagioclase+spinel and normal spinel peridotites and determined temperatures and pressures of formation using the internally consistent Ca-ol/cpx and 2px-thermobarometer of Kohler and Brey (1990) and Brey and Kohler (1990). D…
Capturing gypsum rillenkarren morphometry by a 3D-photo reconstruction (3D-PR) technique
2020
Abstract Rillenkarren are small scale, straight, narrow solution channels that head at the crest of a bare rock slope and are extinguished downslope. In this paper the applicability of 3D-photo reconstruction technique of the rock surface is proposed for capturing the rillenkarren morphometry on gypsum. At first, the measurements are used to assess a relationship between the width/depth ratio and the depth of the rillenkarren. The exponent of this power relationship resulted different from the theoretical value - 0.5, confirming that the cross-section profiles of a rillenkarren can have a shape different from parabolic. The analysis developed for the cross-section area, the perimeter and th…
Semistable Higgs bundles, periodic Higgs bundles and representations of algebraic fundamental groups
2019
Let $k $ be the algebraic closure of a finite field of odd characteristic $p$ and $X$ a smooth projective scheme over the Witt ring $W(k)$ which is geometrically connected in characteristic zero. We introduce the notion of Higgs-de Rham flow and prove that the category of periodic Higgs-de Rham flows over $X/W(k)$ is equivalent to the category of Fontaine modules, hence further equivalent to the category of crystalline representations of the \'{e}tale fundamental group $\pi_1(X_K)$ of the generic fiber of $X$, after Fontaine-Laffaille and Faltings. Moreover, we prove that every semistable Higgs bundle over the special fiber $X_k$ of $X$ of rank $\leq p$ initiates a semistable Higgs-de Rham …
Asymmetric Allylation/RCM-Mediated Synthesis of Fluorinated Benzo-Fused Bicyclic Homoallylic Amines As Dihydronaphthalene Derivatives
2016
Enantiomerically enriched fluorinated benzo-fused bicyclic homoallylic amities have been synthesized through an asymmetric allylation/ring closing metathesis (RCM) sequence. This sequence has been carried out using alpha-trifluoromethylstyrene derivatives as key intermediates, synthesized by microwave radiation. The great deactivating effect exerted by such substituents has been brought to light by a comparative study.
ChemInform Abstract: Synthesis of Fluorinated and Non-Fluorinated Bicyclic Amidines Through Ring-Closing Metathesis.
2012
Condensation of unsaturated esters (I) and (VII) with 1,2-diamines proceeds in the presence of trimethylaluminum providing imidazolines (III) and (VIII) which are further allylated giving suitable dienes (V) and (IX).