Now showing items 1-10 of 21797
Theoretical Critique in Iranian Theater
(Universidad del Zulia, 2019)
A Theoretical Study of the Diels-Alder Reaction between 3-nitrofuran and Different Dienes Developed in Ionic Liquids
(ScienceDomain international, 2016-07)
In this study the reactivity of 3-nitrofuran acting as electrophile in their reactions with different dienes, was analyzed in theoretical form. Specifically, the mechanism of each DA reaction was explored. Moreover, ...
Instability, political regimes and economic growth: A theoretical framework
(John Wiley & Sons Inc., 2021-11-25)
This paper models the influence of political instability on long-term economic growth. We consider three political systems associated to real-world political systems of increasing participation in policy-making. For each ...
Correlations between theoretical calculations and experimental photochemical reactivity of hydroxyanthraquinone drugs present in Aloe vera
(Facultad Experimental de Ciencias de la Universidad del Zulia, 2010)
The process of systematization and its application in the construction of the research theoretical frameEl proceso de sistematización y su aplicación en la construcción del marco teórico de la investigación
(Universidad Central "Marta Abreu" de Las Villas, 2014)
A Theoretical Framework for Integrated STEM Education
For several decades there has been a broad consensus on the need to promote scientific literacy and, ultimately, to promote the full development of student competency from an early age. However, many of the results recorded ...
An experimental and theoretical study of the molecular structure and vibrational spectra of iodotrimethylsilane (SiIMe3)
(Royal Society of Chemistry, 2006-11)
The gas-phase molecular structure of iodotrimethylsilane (ITMS) has been determined from electron diffraction data. Infrared and Raman spectra have been completely assigned. The experimental work is supported by ab initio ...
Theoretical study of the Borono–Mannich reaction with Pinacol Allenylboronate
(American Chemical Society, 2020-05-04)
A DFT study of the mechanism of the Borono-Mannich reaction using benzylamine and piperidine as representative examples of primary and secondary amines with pinacol allenylboronate is presented. The study shows that both ...
Theoretical investigation of the Diels-Alder reactions of unsaturated boronates
(Royal Society of Chemistry, 2013-04)
The Diels-Alder reactions of simple unsaturated boronates have been investigated using computational methods and the results were compared with those for the analogue dihalo- and dialkylboranes. Our results indicate that ...