Buscar
Mostrando ítems 1-10 de 40
Structural analysis of natural deep eutectic solvents : theoretical and experimental study
(Elsevier Science, 2018-12)
A theoretical and experimental study was performed on natural deep eutectic solvents (NADES) formed by lactic acid-glucose (LGH), citric acid-fructose (CFH) and citric acid-glucose (CGH). The presence of nuclear Overhauser ...
Free vibration and dynamic stability of rotating thin-walled composite beams
(Gauthier-Villars/Editions Elsevier, 2011-05)
The dynamic stability behavior of thin-walled rotating composite beams is studied by means of the finite element method. The analysis is based on Bolotin's work on parametric instability for an axial periodic load. The ...
Comunication and semiotics in epistemological resonancesComunicação e semiótica em ressonâncias epistemológicas
(Universidade Federal do Rio Grande do Sul, 2016)
¿Una teoría crítica fenomenológica?: Resonancia, alienación y crítica de la sociedad en el pensamiento de Hartmut RosaA phenomenologícal crítícal theory?: Resonance, alíenatíon, and crítíque of socíety ín Hartmut Rosa's thought
(Universidad de Buenos Aires. Facultad de Ciencias Sociales. Instituto de Investigaciones Gino Germani, 2020-10)
En este artículo me propongo reconstruir sistemáticamente los lineamientos principales de la novedosa teoría crítica desarrollada por Hartmut Rosa: la sociología de las relaciones con el mundo. Para ello, procedo en tres ...
Model for the singlet-triplet leptoquarks
(American Physical Society, 2021-06)
The deviations of B-meson decays measured in RD(∗)τℓ and RK(∗)μe can be explained by the presence of two scalar leptoquarks, a singlet S1 and a triplet S3, mostly coupled to the third generation. We consider a theory of ...
EPR studies of the Mo-enzyme aldehyde oxidoreductase from Desulfovibrio gigas: An application of the Bloch–Wangsness–Redfield theory to a system containing weakly-coupled paramagnetic redox centers with different relaxation rates
(Elsevier Science Inc, 2009-10)
Electron transfer proteins and redox enzymes containing paramagnetic redox centers with different relaxation rates are widespread in nature. Despite both the long distances and chemical paths connecting these centers, they ...
Charge delocalization in Z-isomers of (4α → 6”, 2α → 0 → 1”)-phenylflavans with R = H, OH and OCH3. Effects on bond dissociation enthalpies and ionization potentials
(Elsevier, 2013-02)
The (2 alpha-O-1´´)-bridged 4-phenylflavans comprise an interesting structure, included in natural antioxidants such as simple and dimeric A-type proanthocyanidins, catechins and condensed tannins. This work concerns the ...
Charge delocalization in Z-isomers of (4α→6', 2α→O→1')-phenylflavans with R=H, OH and OCH3: Effects on bond dissociation enthalpies and ionization potentials
(Elsevier Science Inc., 2013-02)
The (2→O→1')-bridged 4-phenylflavans comprise an interesting structure, included in natural antioxidants such as simple and dimeric A-type proanthocyanidins, catechins and condensed tannins. This work concerns the analysis ...
Controlled energy-selected electron capture and release in double quantum dots
(American Physical Society, 2013-12)
Highly accurate quantum electron dynamics calculations demonstrate that energy can be efficiently transferred between quantum dots. Specifically, in a double quantum dot an incoming electron is captured by one dot and the ...
Covalence and π-electron delocalization influence on hydrogen bonds in proton transfer process of o-hydroxy aryl Schiff bases: A combined NMR and QTAIM analysis
(American Institute of Physics, 2021-08)
Within the framework of the density functional theory approach, we studied the relationship between the chemical nature of intramolecular hydrogen bonds (HBs) and nuclear magnetic resonance (NMR) parameters, J-couplings ...