Search results for " Alcohol."

showing 8 items of 568 documents

Densities, Refractive Indices, and Derived Excess Properties of the Binary Systems Toluene + Isooctane and Methylcyclohexane + Isooctane and the Tern…

2000

This paper reports mesurements of the densities and refractive indices of the binary systems toluene + isooctane and methylcyclohexane + isooctane and the ternary systems tert-butyl alcohol (TBA) + toluene + isooctane and tert-butyl alcohol (TBA) + methylcyclohexane + isooctane over the entire range of composition at 298.15 K. Excess molar volumes and changes of refractive indices were evaluated from the experimental data obtained. These derived properties were fitted to variable-degree polynomials. The experimental values of physical properties were compared with the values estimated by different methods.

tert-Butyl alcoholTernary numeral systemGeneral Chemical EngineeringButanolAnalytical chemistryAlcoholGeneral ChemistryToluenechemistry.chemical_compoundMolar volumechemistryOrganic chemistryBinary systemMethylcyclohexaneJournal of Chemical & Engineering Data
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Revista española de drogodependencias

2008

Resumen tomado de la publicación El presente estudio pretende examinar el papel predictivo de la percepción de la educación paterna por parte de los hijos, en el consumo de diferentes sustancias (alcohol, cannabis y tabaco) durante la adolescencia. Método: Se administró un cuestionario anónimo desarrollado para medir la cantidad de sustancias consumidas en una semana y el tipo de educación percibida de sus padres, así como diferentes variables personales. La muestra estaba compuesta por 1378 sujetos, con edades comprendidas entre los 13 y los 19 años. El análisis se realizó a través del Modelo de Regresión de Poisson. Resultados: El tipo de educación recibida parece influir en función de la…

toxicomanía:PSICOLOGÍA::Psicofarmacología [UNESCO]Educación paterna Uso de drogas Adolescentes Cannabis Tabaco Alcohol.drogapersonalidad:PSICOLOGÍA [UNESCO]UNESCO::PSICOLOGÍAmedicinaUNESCO::PSICOLOGÍA::Psicofarmacología
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Organocatalytic Enantioselective Vinylogous Henry Reaction of 3,5-Dimethyl-4-nitroisoxazole with Trifluoromethyl Ketones

2017

The enantioselective vinylogous Henry reaction of 3,5-dimethyl-4-nitroisoxazole with trifluoromethyl ketones employing a bifunctional squaramide organocatalyst has been developed. A series of isoxazole bearing trifluoromethyl-substituted tertiary alcohols, 2-substituted (R)-1,1,1-trifluoro-3-(3-methyl-4-nitroisoxazol-5-yl)propan-2-ols, were obtained under these mild reaction conditions in good yields and moderate to good enantioselectivities

trifluoromethyl ketoneReaction conditionsNitroaldol reactionTrifluoromethyl010405 organic chemistryasymmetric synthesisisoxazoleOrganic ChemistryEnantioselective synthesisSquaramide010402 general chemistry01 natural sciencesCatalysis0104 chemical scienceschemistry.chemical_compoundchemistrysquaramide organocatalystvinylogous Henry reactionOrganic chemistryIsoxazoleBifunctionalTertiary alcoholsSynthesis
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Advances in Wine Fermentation

2021

Fermentation is a well-known natural process that has been used by humanity for thousands of years, with the fundamental purpose of making alcoholic beverages such as wine, and also other non-alcoholic products. From a strictly biochemical point of view, fermentation is a process of central metabolism in which an organism converts a carbohydrate, such as starch or sugar, into an alcohol or an acid. The fermentation process turns grape juice (must) into wine. This is a complex chemical reaction whereby the yeast interacts with the sugars (glucose and fructose) in the must to create ethanol and carbon dioxide. Fermentation processes to produce wines are traditionally carried out with Saccharo…

vesselsFermentation industries. Beverages. AlcoholyeastsPlant ScienceBiochemistry Genetics and Molecular Biology (miscellaneous)chemistry.chemical_compoundFermentacióFood sciencewineSugarfermentationWineFermentation in winemakingTP500-660EthanolChemistryfood and beveragesFructoseYeastLactic acidcarbohydrates (lipids)lactic acid bacteriaViniculturaFermentationmicro-oxygenationFood ScienceFermentation
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Explorando nuevas vías para mejorar la eficacia de la intervención en hombres condenados por violencia de género

2014

Con el objetivo de delimitar el ámbito en el que se sitúa este trabajo, en primer lugar, se ha de destacar que se enmarca en el área de la violencia contra la mujer en las relaciones de pareja. Este tipo de violencia es un problema que desde hace unas décadas se considera un problema social extendiéndose más allá del ámbito privado. Desde luego, a pesar de los esfuerzos emprendidos por diversos colectivos de profesionales, la realidad impone que siguen muriendo mujeres a manos de sus parejas o exparejas como máxima expresión de este tipo de violencia. Las medidas a tomar implican tanto a las víctimas (mujeres e hijos/as) como a los agresores y la sociedad en general. Con esta idea en mente,…

violencia de géneroconsumo de alcohol:PSICOLOGÍA::Psicología social [UNESCO]UNESCO::PSICOLOGÍA::Psicología socialprograma contextoviolencia en las relaciones de parejaintervencíón con maltratadores
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Hydrogels for Three-Dimensional Ionizing-Radiation Dosimetry

2021

Radiation-sensitive gels are among the most recent and promising developments for radiation therapy (RT) dosimetry. RT dosimetry has the twofold goal of ensuring the quality of the treatment and the radiation protection of the patient. Benchmark dosimetry for acceptance testing and commissioning of RT systems is still based on ionization chambers. However, even the smallest chambers cannot resolve the steep dose gradients of up to 30–50% per mm generated with the most advanced techniques. While a multitude of systems based, e.g., on luminescence, silicon diodes and radiochromic materials have been developed, they do not allow the truly continuous 3D dose measurements offered by radiation-se…

xylenol-orangeMaterials sciencePolymers and Plasticspoly-vinyl alcoholScienceDose profileBioengineeringGeneral. Including alchemyReviewRadiation01 natural sciences030218 nuclear medicine & medical imagingIonizing radiationBiomaterials03 medical and health sciencesMagnetic resonance imaging0302 clinical medicineQD1-650103 physical sciencesthree-dimensional dosimetryDosimetryIrradiationQD1-999QD146-197Optical tomography010308 nuclear & particles physicsbusiness.industryOrganic ChemistryQpolyacrylamide gelChemistrySpectrophotometryAbsorbed doseglutaraldehydeRadiation protectionLuminescencebusinessInorganic chemistryBiomedical engineeringferrous sulfateGels
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Sakē popularitātes kritums Japānas modernajā sabiedrībā: iemesli un risinājumi

2017

Bakalaura darba nosaukums ir “Sakē popularitātes kritums Japānas modernajā sabiedrībā: iemesli un risinājumi”. Šajā darbā autore ir izpētījusi sakē vēsturi no seniem laikiem līdz mūsdienām. Darba mērķis ir uzzināt iemeslus sakē popularitātes kritumam mūsdienu Japānā kā arī izprast, ko sakē nozīmē Japāņiem. Inovāciju parādīšanas Japānā nenozīmēja veco, tradicionālo vērtību aizmiršanu. Japānas sabiedrībā vecais un jaunais daudzos gadījumos ir gājis roku rokā. Viens no pierādījumiem tam ir šajā darbā aprakstītais fenomens, ka mūsdienu japāņi dzer gan tradicionālo sakē, gan importētos dzērienus. Bakalaura darbs sastāv no 50 lpp. Tajā ir 3 nodaļas. Pirmajā nodaļā stāstīts par vispārējo sakē vēst…

Āzijas studijassakeJapanese Tradtional Alcoholic DrinkThe Decline of Sake's PopularityJapanese Culture
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Latvijas nelegālā bezakcīzes alkohola aprite

2014

Elektroniskā versija nesatur pielikumus

ēnu ekonomikatax policyalcohol market regulationnoncommercial alcoholEkonomikaEconomybezakcīzes alkoholsalkohola nozares regulācija
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