Search results for "ETC"

showing 10 items of 778 documents

Activities of the IEEE GRSS Spain Chapter

2019

© 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes,creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. Presents information on various GRSS Society chapters Peer Reviewed

Teledetecció:Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Teledetecció [Àrees temàtiques de la UPC]Ciència Societats etc.Remote sensing
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Informacion en hecho y drecho de Don Luis Coronel Luna, olim don Pedro Luis Ladron. En el articulo de nullidades dichas por Don Francisco Ladron Marq…

1609

Caplletra grav. Sign. : [ ]1, A-C4 Reclams Escut grav. a la port.

Terranova Marquesat de Judicis litigis etc. SXVII Obres anteriors a 1800Judicis Herències i successions Comunitat valenciana S.XVII Obres anteriors a 1800
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Sähköä ja alkemiaa: Tekoälydiskurssit Yleisradion verkkoartikkeleissa

2021

Tässä artikkelissa tarkastelemme sitä, millaisena ja miten tekoäly esitetään suomalaisessa julkisessa keskustelussa, ja ketkä tekoälystä suurelle yleisölle kertovat. Aineistona olemme käyttäneet Yleisradion verkkosivujen tekoälyä käsitteleviä artikkeleja. Tulosten perusteella tekoälystä pääsevät kertomaan useimmin talouden ja teollisuuden aloilla työskentelevät miehet. Aineistossa esiintyneet tekoälytulevaisuuskuvaukset pitäytyvät pitkälti nykyisen länsikeskeisen kapitalistisen maailmankuvan sisällä. Toisin sanoen, ne eivät haastaneet tai ylittäneet vallitsevaa status quoa, vaan näkivät tulevaisuuden pikemminkin lineaarisena kehityksenä nykytilasta. Aiemman tutkimuksen perusteella yleinen k…

The Finnish Public Service Media CompanyuutisointiH1-99julkinen keskustelufuture scenariosCommunication. Mass mediatekoälyartificial intelligenceYleskenaariotdiskurssintutkimusP87-96Journalism. The periodical press etc.PN4699-5650Teemanumero: Tiedon politiikatSocial sciences (General)Yleisradiomachine learningpublic discussionkoneoppiminennewstulevaisuusdiscourse researchMedia & viestintä
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Rapid and eco-friendly synthesis of graphene oxide-silica nanohybrids

2014

The increasing interest in Graphene oxide (GO) is due to many issues: the presence of both sp2-conjugated atoms and oxygen-containing functional groups provides a strong hydrophilicity and the possibility to further functionalize it with other molecules (i.e. π-π interactions covalent attachment etc.) [1]. Furthermore since the GO is biocompatible and noncytotoxic many studies have been recently focused on the development of GO-based nanodevices for bioimaging DNA detection drug delivery. Due to their low cytotoxicity and large internal surface area silica nanoparticles have been taken into account as promising material for biolabeling and drug loading/delivery. Particular consideration has recently been demonstrated for GO-silica composites because of the potentialities for electrical applications their chemical inertia and stability toward ions exposure. The possibility to combine the extraordinary properties of GO and silica offers several advantages for the realization of nanoprobes for biological applications and of biosensor [12]. The strategy for the fabrication of GO-nanosilica nanohybrids can be schematized as follows: (i) synthesis of GO by oxidizing graphite powder with the method described by Marcano et al. [3] (ii) Preparation of oxygen-loaded silica nanoparticles by thermal treatments in controlled atmosphere in order to induce high NIR emission at 1272 nm from high purity silica nanoparticles. (iii) preparation of GrO-silica nanohybrid films via rapid solvent casting in water. The nanohybrids were tested by XPS FTIR Raman analysis UV photoluminescence analysis TGA Zeta potential measurements electrical tests AFM and SEM. Several nanohybrids were prepared by combining two different typologies of GO and two different samples of silica.
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The laparoscopic approach to Acute Mesenteric Ischemia is today unclear and less debated (AMI). There are in fact no clinical evidences on this parti…

2016

The laparoscopic approach to Acute Mesenteric Ischemia is today unclear and less debated (AMI). There are in fact no clinical evidences on this particular focus and only few articles can be found in several databases (pubmed, cochrane library, etc.), and the problem concerns both diagnostic and therapeutic utilization of the procedure. These considerations were already taken into account in 2012 EAES guidelines where the Grade of Recommendation (GoR) of laparoscopy in AMI was low in both diagnostic and therapeutic aspects. According to the new Oxford Classification [1], the use of laparoscopy in patients with suspicious or diagnosed AMI presents a weak GoR.

The laparoscopic approach to Acute Mesenteric Ischemia is today unclear and less debated (AMI). There are in fact no clinical evidences on this particular focus and only few articles can be found in several databases (pubmed cochrane library etc.) and the problem concerns both diagnostic and therapeutic utilization of the procedure. These considerations were already taken into account in 2012 EAES guidelines where the Grade of Recommendation (GoR) of laparoscopy in AMI was low in both diagnostic and therapeutic aspects. According to the new Oxford Classification [1] the use of laparoscopy in patients with suspicious or diagnosed AMI presents a weak GoR.
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Quantum Field Theory

2018

Quantum field theory (QFT) shares many of its philosophical problems with quantum mechanics. This applies in particular to the quantum measurement process and the connected interpretive problems, to which QFT contributes hardly any new aspects, let alone solutions. The question as to how the objects described by the theory are spatially embedded was already also discussed for quantum mechanics. However, the new mathematical structure of QFT promises new answers, which renders the spatiotemporal interpretation of QFT the pivotal question. In this chapter, we sketch the mathematical characteristics of QFT and show that a particle as well as a field interpretation breaks down.

Theoretical physicsField (physics)Computer scienceQuantum measurementQuantum field theoryMathematical structurePhysics::History of PhysicsSketchInterpretation (model theory)
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A fully planar approach to the construction of X-Ray microcalorimeters with doped Germanium sensors

2008

We have investigated a fully planar technology for the development of arrays of X-ray microcalorimeters with doped germanium thermal sensor. We describe the proposed approach and show promising results obtained with the deep etching of germanium, the most critical step of the whole process.

Thermal sensorsMaterials sciencebusiness.industryThermistorDetectorDopingX-raychemistry.chemical_elementGermaniumCondensed Matter PhysicsAtomic and Molecular Physics and OpticsPlanarX-ray detectors microcalorimeter planar technologychemistryEtching (microfabrication)OptoelectronicsGeneral Materials Sciencebusiness
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Highly Functionalized Ferrocenes

2020

International audience; Ferrocene is unique among organometallic compounds, and serves notably as a versatile platform towards the production of ligands useful to promote transition metals chemistry. A general limiting aspect of the synthesis of ferrocene derivatives is the efficient access to sophisticated highly functionalized polysubstituted ferrocenes, i. e. bearing four or more substituents replacing hydrogen atoms on the cyclopentadienyl rings. These ferrocene derivatives can bear various functional or/and structuring spectator substituents. Their preparation involves synthetic difficulties resulting from the need of multiple functionalizations coexisting altogether, and satisfying fu…

Thesaurus (information retrieval)Setc.). Thus010405 organic chemistryChemistryOPNhighly functionalized ferrocenes010402 general chemistryN)-01 natural sciencesB)-and (NP)-0104 chemical sciencesInorganic ChemistryWorld Wide WebP')-which include notably (P(PB)-B)compounds[CHIM.COOR]Chemical Sciences/Coordination chemistryEuropean Journal of Inorganic Chemistry
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Ultrasound Effects after Post Space Preparation: An SEM Study

2006

The aim of this study was to evaluate the effect of ultrasonic treatment on occlusion of dentine tubules in root canal walls after post space preparation in endodontically treated teeth. Twenty-four premolars were instrumented and filled using warm vertical condensation; after post space preparation, they were divided into two groups. The control group was treated using the etching procedure. The experiment samples were treated with EDTA irrigation and ultrasound activation for 30 s before the etching procedure. The roots were divided and the canal walls were examined under SEM at 1000x magnification. The debris and open tubule marks were observed at 2, 6, and 10 mm levels using a three-ste…

Tooth NonvitalMaterials scienceUltrasonic therapySem studybusiness.industryUltrasonic TherapyRoot canalUltrasoundSmear layerMagnificationDentistrymedicine.anatomical_structureTubuleSmear LayerCoronal planeDental EtchingDentinmedicineHumansbusinessGeneral DentistryRoot Canal PreparationPost and Core TechniqueJournal of Endodontics
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A redox-sensitive nanofluidic diode based on nicotinamide-modified asymmetric nanopores

2017

[EN] We demonstrate a redox-sensitive nanofluidic diode whose ion rectification is modulated by the oxidation and reduction of chemical moieties incorporated on its surface. To achieve this goal, we have first synthesized the chemical compounds 1-(4-aminobutyl)-3-carbamoylpyridin-1-ium (Nic-BuNH2) and 3-carbamoyl-1-(2,4-dinitrophenyl)pyridinium (Nic-DNP). Then, the surface of track-etched single asymmetric nanopores is decorated with the redox-sensitive Nic-BuNH2 and Nic-DNP molecules using carbodiimide coupling chemistry and Zincke reaction, respectively. The success of the modification reactions is monitored through the changes in the current¿voltage (I¿V) curves prior to and after pore f…

Track-etchingReducing agent02 engineering and technology010402 general chemistryPhotochemistry01 natural sciencesRedoxIonchemistry.chemical_compoundMaterials ChemistryMoleculeOrganic chemistryRedox reactionSurface chargeElectrical and Electronic EngineeringNicotinamideInstrumentationCurrent rectificationMetals and Alloys021001 nanoscience & nanotechnologyCondensed Matter Physics0104 chemical sciencesSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsNanoporechemistrySurface functionalizationFISICA APLICADASurface modificationPyridiniumSynthetic nanopores0210 nano-technologySensors and Actuators B: Chemical
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