Descripción completa.

The synthesis of histamine H2 receptors peptides was conducted using the methodology of solid phase assisted by microwaves. Microwaves can reduce the reaction times during the coupling and deprotection steps to obtain the desired peptide sequence. The coupling reaction was…

The development of the great aurora of January 18, 1770 has been discussed in a fundamental paper by Silberschlag and other authors.The aurora was observed in middle and low latitudes and of course in northern latitudes. In Central Europe it…

Water disinfection was performed using Mexican clinoptilolite-rich tuffs from Oaxaca and Sonora with different particle sizes exchanged with silver ions. Samples of Escherichia coli (ATCC 8739) suspended in distilled water (wastewater-like) and municipal waste-water containing coliforms (E. coli as a…

The interaction of the herbicide paraquat dichloride (PQ, substrate) with p-tert-butylcalix[6, 8]arenes (L, receptor) was investigated in both the solution and solid states. The isolated paraquat calixarene complexes were characterised by UV-visible, ¹H NMR, ESI-MS, Luminescence and IR spectroscopies and…

This paper presents results of radiolytic degradation of 4-chlorophenol in the presence of TiO2, Al2O3, y SiO2, using different radiation sources than 60Co, which is so common in this type of experiment. The radiation sources used were X-rays with energy…

In the present work, heterogenous photocatalysis, a technique often used for organic compound degradation toxic in water, was used. The photocatalyst most often used in this technique is TiO2, which, due to its physical and chemical properties, can degrade a…

Nickel-molybdenum based electrolcatalysts were synthesized in organic media for the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) in alkaline media. The strutture, morphology, and chemical composition of the catalysts were evaluated by XRD, SEM and AAS. Results revealed…

This paper analyzes the momentum effect in the four main Latin American stock markets. In the behavioural finance framework, the results obtained suggest that over-reaction and the disposition effect play a key role in explaining momentum. The interaction of these…

This paper deals with the discrete-time nonlinear system identification via Recurrent High Order Neural Networks, trained with an extended Kalman filter (EKF) based algorithm. The paper also includes the respective stability analysis on the basis of the Lyapunov approach for…