Results 131 to 140 of about 405,960 (378)
Finite-size Scaling Study of Shear Viscosity Anomaly at Liquid-Liquid Criticality
, 2014 We study equilibrium dynamics of a symmetrical binary Lennard-Jones fluid mixture near its consolute criticality. Molecular dynamics simulation results for shear viscosity, $\eta$, from microcanonical ensemble are compared with those from canonical ...
Das, Subir K., Roy, Sutapa
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Chlorinated Paracyclophanes: Composition Analysis and Direct Metal‐Free Alkylation with n‐BuLi
European Journal of Organic Chemistry, EarlyView.A transition‐metal‐free alkylation of pseudo‐para dichloro[2.2]paracyclophane (Cl2‐PCP) is reported, utilizing the purified pseudo‐para isomer and n‐butyllithium (BuLi). Optimization with the chelating agent TMEDA and refluxing n‐heptane significantly boosted selectivity and reaction rate, providing the dialkylated product in 22% isolated yield.
Davide Frigatti +3 more
wiley +1 more source
La Propiedad Inmaterial, 2007 El tlc usa-Colombia aumenta la protección de la propiedad intelectual por encima de la normatividad internacional plasmada en los Acuerdos adpic de la omc y en la Decisión 486 de 2000, de la Comunidad Andina de Naciones.
Martín Uribe Arbeláez
doaj
European Journal of Organic Chemistry, EarlyView.Organic azides are readily reduced to amines under mild conditions by ammonia borane complex, catalyzed by a low loading level of reusable Au nanoparticles supported on TiO2. We present the first protocol for the chemoselective reduction of organic azides to amines by ammonia borane complex. In the presence of a low catalytic amount of Au nanoparticles
Elisavet‐Maria Zantioti‐Chatzouda +5 more
wiley +1 more source
AlternanciaDistintas especializaciones tecnológicas en salud son operario dependiente que trabajan bajo estrés en la optimización del resultado final, por lo que la formación necesita incluir además de las destrezas otros conocimientos que reduzca la incertidumbre ...
Rosa Alicia Araoz
doaj +1 more source
Catalytic Hydrogenation of Lignin‐Derived Aromatics With Rhodium Oxide in Water
European Journal of Organic Chemistry, EarlyView.The easily available, easy‐to‐handle rhodium(III) oxide, Rh2O3, is shown to be a competent catalyst for arene hydrogenation, including chemoselective reduction of α,β‐unsaturated aryl ketones. Catalytic arene hydrogenation offers a direct pathway to saturated carbocycles. It can also be exploited to upgrade lignin‐derived aromatics.
Zhenyu Chen +8 more
wiley +1 more source
مجله علمی دانشگاه علوم پزشکی کردستان, 2021 Background and Aim: Nowadays, drug abuse is a major problem in societies, and detection of drugs in urine is very important. In general, immunochromatography (ICG) and thin-layer chromatography (TLC) are routine methods for the detection of drugs in ...
Mohammad Ahmadia khosroshahi +1 more
doaj
In search of place for the trainee teacher: how can geography departments most benefit from welcoming trainee teachers? [PDF]
, 2012 The article explores various interpretations of how to position trainee teachers within their geography departments following the narrative of the authors' own professional career from Head of Geography in a school to doctoral researcher at University ...
Rosenthal, Robert
core +1 more source
Study of Critical Dynamics in Fluid via Molecular Dynamics in Canonical Ensemble
, 2015 With the objective of demonstrating usefulness of thermostats in the study of dynamic critical phenomena in fluids, we present results for transport properties in a binary Lennard-Jones fluid that exhibits liquid-liquid phase transition. Results from the
Das, Subir K., Roy, Sutapa
core +1 more source