Search results for "Argo"

showing 10 items of 424 documents

Response ofBacillus subtilis spores to dehydration and UV irradiation at extremely low temperatures

1996

Spores of Bacillus subtilis have been exposed to the conditions of extreme dehydration (argon/silica gel; simulated space vacuum) for up to 12 weeks at 298 K and 80 K in the dark. The inactivation has been correlated with the production of DNA-double strand-breaks. The temperature-dependence of the rate constants for inactivation or production of DNA-double strand-breaks is surprisingly low. Controls kept in the frozen state at 250 K for the same period of time showed no sign of deterioration. In another series of experiments the spores have been UV irradiated (253.7 nm) at 298 K, 200 K and 80 K after exposure to dehydrating conditions for 3 days. Fluence-effect relationships for inactivati…

DNA BacterialVacuumUltraviolet Rayschemistry.chemical_elementBacillus subtilisPhotochemistrychemistry.chemical_compoundReaction rate constantmedicineDehydrationIrradiationEcology Evolution Behavior and SystematicsSpores BacterialBacteriological TechniquesArgonbiologyChemistrySilica gelGeneral Medicinemedicine.diseasebiology.organism_classificationSporeCold TemperatureBiochemistrySpace and Planetary ScienceBacillus subtilisDNA DamageOrigins of Life and Evolution of the Biosphere
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Las vías de acceso al poder local en la Valencia del siglo XVIII. Continuidad y cambio de un proceso de ennoblecimiento de los oficios municipales

1987

La abolición de los fueros en 1707 y el establecimiento de la Nueva Planta como marco jurídico a partir del cual se iba a dotar de contenido a las instituciones valencianas, introdujeron cambios cualitativos en lo que venía siendo el devenir histórico del poder local. Supuso, al mismo tiempo, la concreción de una nueva dinámica en las relaciones de la Monarquía con las distintas instancias o niveles de poder existentes. Uno de ellos era el municipio y, especialmente, el municipio foral. Del conjunto de transformaciones de que fue objeto este último, quisiéramos referirnos aquí a los mecanismos de cooptación del personal político a escala local, a través de un análisis no ya de la nueva olig…

DP1-402Administración localModern history 1453-Oligarquía urbanaNoblezaD204-475Siglo XVIIIReligious studiesHistory of SpainValenciaPoder localRegidoresCargos municipales
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El Síndico de la ciudad de Valencia. De las Germanías a la insaculación

2001

El síndico de la ciudad de Valencia era uno de los principales cargos en el organigrama político municipal de la capital del Reino durante el periodo foral; de ahí que el sistema de provisión del mismo llegara a cobrar suficiente entidad como para suscitar deseos de control por parte de la ciudad y de la Corona. Además de analizar las características del oficio y la relación de quienes lo desempeñaron, el presente trabajo se centra en las disputas que ambos sectores de la administración mantuvieron sobre su designación, especialmente a partir del momento, a finales del Quinientos, en que se desdobla el cargo y deja de ser perpetuo, escapando al control tradicional que había venido mantenien…

DP1-402Modern history 1453-D204-475Religious studiesGobierno municipalHistory of SpainSíndicosValenciaElección de cargosInsaculación
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Decision support for centralizing cargo at a Moroccan airport hub using stochastic multicriteria acceptability analysis

2010

The geographical location of Morocco places it at the heart of important sea, air, rail and motorway transport routes between four continents. In this study we evaluate different alternatives to centralize multimodal cargo at a Moroccan airport hub. The choice depends on different socio-economical criteria, the geographical location, and the environmental impacts. Some of the criteria can be measured quantitatively, while for others only qualitative assessment is feasible. Furthermore, significant uncertainty is present in both the criteria measurements and the preferences. We aided this decision process using Stochastic Multicriteria Acceptability Analysis (SMAA). SMAA is a method that all…

Decision support systemdecision supportInformation Systems and ManagementGeneral Computer ScienceOperations researchComputer scienceAviationmedia_common.quotation_subjectsStochastic multicriteria acceptability analysisManagement Science and Operations ResearchIndustrial and Manufacturing EngineeringComplete informationair cargo hubPreference (economics)ta218media_commonta212transportationStochastic multicriteria acceptability analysista214business.industryPerfect informationNegotiationModeling and SimulationAirport authoritybusinessEuropean Journal of Operational Research
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Democrazia e deliberazione

2008

Sono molti gli studiosi che prevedono una preoccupante fine della partecipazione nelle sue forme tradizionali. E' possibile intendere il porcesso deliberativo come nuova forma di partecipazione e come modalità atttraverso cui trasformare gli interessi diffusi in ragioni diffuse?

Democrazia Deliberazione argomentazione pubblicaSettore SPS/07 - Sociologia Generale
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Determination of 129I/127I isotope ratios in liquid solutions and environmental soil samples by ICP-MS with hexapole collision cell

2003

The determination of I-129 in environmental samples at ultratrace levels is very difficult by ICP-MS due to a high noise caused by Xe impurities in argon plasma gas (interference of Xe-129(+)), possible (IH2+)-I-127 interference and an insufficient abundance ratio sensitivity of the ICP mass spectrometer for I-129/I-127 isotope ratio measurement. A sensitive, powerful and fast analytical technique for iodine isotope ratio measurements in aqueous solutions and contaminated soil samples directly without sample preparation using ICP-MS with a hexapole collision cell (ICP-CC-QMS) was developed. Oxygen is used as reaction and carrier gas for iodine thermal desorption via the gas phase from solid…

Detection limitArgonAnalytical chemistryThermal desorptionchemistry.chemical_elementMass spectrometryAnalytical ChemistryJchemistryImpurityDesorptionddc:540Sample preparationInductively coupled plasma mass spectrometrySpectroscopy
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Improvement of the atomic fluorescence determination of mercury by using multicommutation

2002

Atomic fluorescence spectrometry (AFS) determination of Hg has been improved by exploiting the possibilities of the multicommutation approach in order to outline a fully mechanised system which supplies the same sensitivity as the use of continuous measurements, reducing drastically the reagents consumed and waste generation. The use of multicommutation with a simultaneous reduction of the liquid–gas separator volume and the insertion point modification of argon transport gas provides a sensitivity of the AFS measurements of 300 mV ng−1 ml (using a full scale of 1000 mV), a limit of detection (3 s) of 1.3 ng l−1 and relative standard deviation values below 0.1% for 10 independent measuremen…

Detection limitAtomic fluorescenceChromatographyArgonChemistryRelative standard deviationAnalytical chemistrychemistry.chemical_elementSeparator (oil production)Analytical ChemistryMercury (element)Waste generationReagentSpectroscopyJ. Anal. At. Spectrom.
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"Diacritica", a. VII, fascicolo 4 (40), 5 ottobre 2021

2021

Numero di "Diacritica" dedicato all'opera di Gesualdo Bufalino

Diacritica Gesualdo Bufalino Memoria Diceria dell'untore Argo il Cieco
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Effective hydrostatic limits of pressure media for high‐pressure crystallographic studies

2007

The behavior of a number of commonly used pressure media, including nitrogen, argon, 2-propanol, a 4:1 methanol–ethanol mixture, glycerol and various grades of silicone oil, has been examined by measuring the X-ray diffraction maxima from quartz single crystals loaded in a diamond-anvil cell with each of these pressure media in turn. In all cases, the onset of non-hydrostatic stresses within the medium is detectable as the broadening of the rocking curves of X-ray diffraction peaks from the single crystals. The onset of broadening of the rocking curves of quartz is detected at ∼9.8 GPa in a 4:1 mixture of methanol and ethanol and at ∼4.2 GPa in 2-propanol, essentially at the same pressures …

DiffractionShear wavesArgonhydrostatic limitschemistry.chemical_elementmacromolecular substanceshigh-pressure crystallographic studiesNitrogenGeneral Biochemistry Genetics and Molecular BiologySilicone oillaw.inventionchemistry.chemical_compoundCrystallographystomatognathic systemchemistrylawHydrostatic equilibriumGlass transitionQuartzJournal of Applied Crystallography
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Las elecciones de Síndico Personero y Diputados del común en la ciudad de Valencia a principios del siglo XIX

2001

Durante el reinado de Carlos III se aplicó la reforma municipal por la que se introducían nuevos elementos en la estructura de los ayuntamientos. En concreto, se creaban los empleos de diputado del común y síndico personero. Por su proceso de elección y por los requisitos exigidos, se ampliaba la posibilidad de que se pudiera quebrar el monopolio que de los empleos municipales había consolidado la oligarquía que dominaba el consistorio. La aplicación de la reforma en la ciudad de Valencia no fue muy diferente al resto. Analizando los primeros años del XIX hasta la ocupación francesa, se constata cierto fracaso de la misma, numerosos conflictos en su aplicación todos los años se recurrirán l…

Diputados del ComúnUNESCO::HISTORIA::Historia por épocas::Historia antiguaGobierno municipalSíndicosReforma administrativa:HISTORIA::Historia por épocas::Historia antigua [UNESCO]Cargos municipales
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