Search results for "Alcohol"
showing 10 items of 1798 documents
La legislación más relevante en materia de adicciones
2005
El presente trabajo tiene como objetivo, exponer sucintamente, y acotada cronológicamente, la legislación más destacada en materia de adicción, con especial referencia al alcoholismo, tabaquismo y drogas. Igualmente se expondrán aquellos elementos comunes y principios que identifica la legislación estatal, y las legislaciones autonómicas en la materia.
Expression of a reporter gene is reduced by a ribozyme in transgenic plants
1994
A chimeric gene encoding a ribozyme under the control of the cauliflower mosaic virus (CaMV) 35S promoter was introduced into transgenic tobacco plants. In vivo activity of this ribozyme, which was designed to cleave npt mRNA, was previously demonstrated by transient expression assays in plant protoplasts. The ribozyme gene was transferred into transgenic tobacco plants expressing an rbcS-npt chimeric gene as an indicator. Five double transformants out of sixteen exhibited a reduction in the amount of active NPT enzyme. To measure the amount of ribozyme produced, in the absence of its target, the ribozyme and target genes were separated by genetic segregation. The steady-state concentration…
Metabolic syndrome and its association with fatty liver disease after orthotopic liver transplantation
2012
The metabolic syndrome (MetS) might contribute to morbidity after orthotopic liver transplantation (OLT). For this reason, we searched for MetS-associated risk factors and analyzed the link with nonalcoholic fatty liver disease (NAFLD) in OLT recipients. De novo MetS affected 32.9% of our cohort (n = 170) within 2 years after OLT. Multivariate analysis identified glycosylated hemoglobin (HbA1c) levels ≥5% [odds ratio (OR) = 3.5; 95% confidence interval (CI) = 1.56-8.13, P = 0.003], diabetes mellitus (OR = 4.31, CI = 1.69-10.99, P = 0.002), and arterial hypertension (OR = 4.59, CI = 1.46-14.49, P = 0.009) as independent risk factors for de novo MetS. MetS incidence correlated with steroid do…
Conductes de risc associades en jugadors patològics i professionals de pòquer i escacs
2016
espanolEl juego esta cada dia mas presente en la sociedad con prevalencias muy importantes, sobre todo, en jovenes y adolescentes. Como consecuencia, este estudio tiene como objetivo estudiar la relacion entre el juego patologico, el juego a nivel aficionado el juego profesional (ajedrez y poquer) en el control de impulsos y en el consumo de alcohol. Para ello, se ha utilizado una muestra compuesta por jugadores aficionados y profesionales de ajedrez y poquer, un grupo de jugadores patologicos y un grupo control. Los instrumentos han medido conducta de riesgo de ingesta de alcohol, control de impulsos y los criterios diagnosticos de juego patologico. Los principales resultados han mostrado …
Revista española de drogodependencias
2008
Antecedentes. Los trastornos por uso de sustancias (TUS) se pueden presentan en cualquier sociedad. En el pais y en sus instituciones educativas son escasos los estudios epidemiologicos. Esta situacion dificulta la compresion epidemiologica, su prevencion, planificacion y evaluacion.Objetivo. Determinar la prevalencia vital e incidencia del ultimo ano de TUS en estudiantes de la Universidad de Los Andes, Merida -Venezuela.Método. Estudio observacional transversal en estudiantes seleccionados aleatoriamente de tres campus universitarios. La muestra represento el 5% del universo: n=1.018 y se evaluo mediante un instrumento autoadministrado, anonimo y validado para Venezuela con denominaciones…
Diarylprolinol as a Ligand for Enantioselective Alkynylation of Cyclic Imines
2017
An easily accessible prolinol derived ligand, (S)-bis(3,5-bis(trifluoromethyl)phenyl)(pyrrolidin-2-yl)methanol, has been efficiently applied in the catalytic enantioselective addition of terminal alkynes to cyclic imines using dimethylzinc (Me2Zn) under mild reaction conditions. The developed catalytic system led to chiral propargylic sulfamidates with high yields (up to 97%) and excellent enantioselectivities (up to 97% ee).
Alkoxo, chlorido, and methyl derivatives of oxidomolybdenum(VI) complexes with tetradentate [O3N]-type ligands
2007
Dioxomolybdenum(VI) complex [MoO 2 (Heg) 2 ] (H 2 eg = 1,2-ethanediol) reacts with phenolic ligand precursors tris(2-hydroxy-3,5-dimethylbenzyl)amine (H 3 L Me ) and tris(2-hydroxy-3,5-di- tert -butylbenzyl)amine (H 3 L t Bu ) to form oxomolybdenum(VI) complexes of type [MoO(L R ) (Heg)]. The Heg ligand can be replaced by other alcohols (i.e. 2-aminoethanol, 2-amino-2-methylpropan-1-ol, 2-(dimethylamino)ethanol or allyl alcohol) in the reaction at refluxing toluene or at neat alcohol. Treatment of [MoO(L R )(Heg)] with Me 3 SiCl yields corresponding chlorido complexes [MoO(L R )Cl]. These are also formed in the reaction of H 3 L R with [MoO 2 Cl 2 (dmf) 2 ]. The reaction of [MoO(L R )Cl] wi…
Sialosis Parotídea Alcohólica: estudio Estructural y Ultraestructural
2004
Objetivos: El propósito del presente trabajo fue establecer posibles diferencias histopatológicas entre los estadíos iniciales y terminales de la sialosis alcohólica, patología que generalmente involucra hipertrofia parotídea y afecta estructuralmente en diverso grado a las demás glándulas salivales. Diseño del estudio: se analizaron y compararon las modificaciones estructurales y ultraestructurales de glándulas parótidas provenientes de: A) biopsias de alcohólicos crónicos con diagnóstico clínico de cirrosis hepática, de las que una fracción fue procesada para microscopía óptica (MO) y otra fracción fue fijada en glutaraldehído y procesada para microscopía electrónica de trasmisión (MET) J…
Separation of di-n-propyl ether and n-propyl alcohol by extractive distillation and pressure-swing distillation: Computer simulation and economic opt…
2011
Abstract Azeotropic mixtures are impossible to separate by ordinary distillation. Two of the most common methods for separating a binary homogeneous azeotrope are pressure-swing distillation (PSD) and extractive distillation (ED). The PSD process is effective if the azeotropic composition changes significantly with pressure. The ED process is effective if a suitable solvent can be found. This paper compares these two alternatives to separate a mixture made up of 50 mol% of di-n-propyl ether and 50 mol% of n-propyl alcohol by means of a practical case of a plant to treat 12,000 Tm/year of this mixture. The simulation has been carried out satisfactorily by mean of a package of commercial soft…
Isobaric (vapour+liquid+liquid) equilibrium data for (di-n-propyl ether+n-propyl alcohol+water) and (diisopropyl ether+isopropyl alcohol+water) syste…
2008
Abstract Isobaric (vapour + liquid + liquid) equilibria were measured for the (di-n-propyl ether + n-propyl alcohol + water) and (diisopropyl ether + isopropyl alcohol + water) system at 100 kPa. The apparatus used for the determination of (vapour + liquid + liquid) equilibrium data was an all-glass dynamic recirculating still with an ultrasonic homogenizer couple to the boiling flask. The experimental data demonstrated the existence of a heterogeneous ternary azeotrope for both ternary systems. The (vapour + liquid + liquid) equilibria data were found to be thermodynamically consistent for both systems. The experimental data were compared with the estimation using UNIQUAC and NRTL models a…