Search results for "IQ"
showing 10 items of 21401 documents
The Radó–Kneser–Choquet theorem for $p$-harmonic mappings between Riemannian surfaces
2020
In the planar setting the Rad\'o-Kneser-Choquet theorem states that a harmonic map from the unit disk onto a Jordan domain bounded by a convex curve is a diffeomorphism provided that the boundary mapping is a homeomorphism. We prove the injectivity criterion of Rad\'o-Kneser-Choquet for $p$-harmonic mappings between Riemannian surfaces. In our proof of the injecticity criterion we approximate the $p$-harmonic map with auxiliary mappings that solve uniformly elliptic systems. We prove that each auxiliary mapping has a positive Jacobian by a homotopy argument. We keep the maps injective all the way through the homotopy with the help of the minimum principle for a certain subharmonic expressio…
IDENTIFICATION OF BACTERIAL TAXA IN ARCHAEOLOGICAL WATERLOGGED WOOD
2014
Summary The microscopic and molecular techniques described in this study are aimed at understanding the degradation processes of the anatomical structure of submerged archaeological wood, correlating it to the degradation induced by bacteria. The SEM micrographs showed alterations of the wooden structure due to bacterial colonization, as well as the presence of pyrite framboids. The difficulty of extracting bacterial DNA from wooden fragments belonging to submerged finds is well-known, due to the presence of many inhibitors; this study describes some extraction and in vitro amplification protocols for wooden submerged finds. The results of the molecular investigations, based on the analysis…
Towards Automated Classification of Firmware Images and Identification of Embedded Devices
2017
Part 4: Operating System and Firmware Security; International audience; Embedded systems, as opposed to traditional computers, bring an incredible diversity. The number of devices manufactured is constantly increasing and each has a dedicated software, commonly known as firmware. Full firmware images are often delivered as multiple releases, correcting bugs and vulnerabilities, or adding new features. Unfortunately, there is no centralized or standardized firmware distribution mechanism. It is therefore difficult to track which vendor or device a firmware package belongs to, or to identify which firmware version is used in deployed embedded devices. At the same time, discovering devices tha…
il volto della morte: le maschere funerarie della sepoltura dei preti morti di Gangi
2014
riassunto — Le mummie moderne e il signifcato recondito della doppia sepoltura nelle culture mediterranee moderne sono da tempo ampiamente dibattuti. In questo lavoro si discute di una particolare “collezione” di corpi di ecclesiastici, mummifcati ed esposti in un comune montano madonita della Sicilia, Gangi. I corpi, principalmente risalenti al XIX secolo, mummifcati per colatura come nella tradizione del tempo e vestiti degli abiti talari, sono esposti nel piano sottostante della Chiesa Madre, in quella che nella tradizione è detta la “fossa dei parrini” (fossa dei preti). Le mummie, a differenza di altri siti siciliani e mediterranei, sono altresì corredate di sonetto commemorativo e di …
English and Finnish compared - attitudes held by future experts and teachers of English
2010
Kieliasenteita on tutkittu maailmalla 1960-luvulta lähtien. Tutkimusmetodit koskien kieliasenteita ovat pysyneet suhteellisen samoina siitä lähtien kun Matched guise tekniikka kehittyi. Tästä lähtien tutkimusmetodologia keskittyi erilaisiin asteikkoihin ja ennalta määrättyihin vastausvaihtoehtoihin. Näitä tutkimusmenetelmiä on kritisoitu sekä kaavamaisuudesta että vastaajien huomiotta jättämisestä. Tämän tutkielman on tarkoitus määrittää suomalaisten englannin yliopisto-opiskelijoiden asenteita englannin kieltä kohtaan. Tutkielman toinen päätarkoitus on osoittaa vaihtoehtoisten tutkimusmenetelmien tarpeellisuus kieliasenteiden tutkimuksessa. Lähtökohtana tutkimuksessa on vastaajien todellis…
LA SFIDA DI MISTRETTA PER UNA RINASCITA CULTURALE ATTRAVERSO LA VALORIZZAZIONE DEL SUO PATRIMONIO STORICO-ARTISTICO
2012
una breve rassegna di suppellettili liturgiche restaurate appartenenti alla Chiesa Madre di Santa Lucia di Mistretta.
" Logistique " et " supply chain ". Une décennie de diffusion dans les revues généralistes francophones de gestion
2013
Logistique, chaîne logistique et SCM dans les revues francophones de gestion : quelle dimension stratégique?
2014
International audience; L’objectif de cet article est de cerner le caractère stratégique de la logistique et du Supply Chain Management (SCM) tel qu’il apparaît dans les revues généralistes de gestion, afin d’avoir une vision de la nature de la diffusion de la connaissance logistique dans les sciences de gestion. Il s’appuie sur l’analyse de 62 articles parus entre 2001 et 2011 dans quatre revues de la base Cairn, accessible en ligne dans la plupart des universités : Gestion, Revue Française de Gestion, Management et Avenir, La Revue des Sciences de Gestion.
Silica powder obtained by sol-gel method as a support of organometallic vanadium catalyst for ethylene polymerization
2004
Sol-gel technique was employed to obtain the silica-type powder, which after modification procedure was applied as asupport of organometallic catalytic system for ethylene polymerization. The powder product was synthesized using hydrolysis and condensation of TEOS, catalyzed by ammonia. Obtained material and a reference support (commercial silica Davisil) were characterized to determine their particle size distributions, BET surface area, pore volume and diameter. Gas-phase adsorption of vanadium catalyst on analyzed support materials as well as adsorption from the solution in hexane were carried out. Both carrier materials were thermally pretreated prior catalytic systems syntheses and the…
Determination of glyphosate and its metabolite aminomethylphosphonic acid in fruit juices using supported-liquid membrane preconcentration method wit…
2005
Abstract The application of supported-liquid membrane (SLM) technique for effective extraction of N -(phosphonomethyl)glycine (glyphosate) and its primary metabolite aminomethylphosphonic acid (AMPA) from juices (orange, grapefruit, apple and blackcurrant) in combination with HPLC-UV detection after derivatization with p -toluenesulphonyl chloride (TsCl) is presented. The influence of various parameters such as the composition of acceptor phase, flow-rate, concentration of analytes, on the performance of extraction procedure, was studied. It was shown that by appropriate manipulation of SLM parameters the level of detection could be significantly improved. The influence of SLM conditions on…