Search results for "minus"
showing 3 items of 63 documents
Uncapping the N-terminus of a ubiquitous His-tag peptide enhances its Cu2+ binding affinity
2019
Metal complexes with an N-terminally free and N-terminally acetylated polyhistidine region of Echis ocellatus venom, with an interesting His-rich motif present in numerous metal binding proteins from all kingdoms of life (DHDHDHHHHHHPGSSV-NH2 and Ac-DHDHDHHHHHHPGSSV-NH2) show the role of the free amino group in the thermodynamic enhancement of Cu2+, Ni2+ and Zn2+ binding. In the studied sequences, Cu2+ can be coordinated by different sets of imidazole rings, and a 3–10 helix is detected in close proximity of Cu2+ binding sites. The complexes are more stable than those with a typical His6-tag, despite a similar copper(II) coordination mode in both cases.
Intervención psicoeducativa en discapacidad intelectual
2012
Las últimas definiciones (2002, 2010) de la AAIDD (Asociación Americana de Discapacidad Intelectual y Discapacidades del Desarrollo) han introducido nuevos aspectos a considerar en la discapacidad intelectual: la reformulación de la conducta adaptativa y la necesidad de proporcionar los apoyos necesarios para que el niño pueda tener un funcionamiento óptimo en los diferentes contextos en los que desenvuelve. Gracias al avance de la medicina, conocemos mejor las características físicas y neurológicas asociadas a los diferentes síndromes, lo que permite desarrollar protocolos de actuación para la mejora de la salud, y estrategias educativas diferenciadas y adaptadas al modo en que procesan la…
Incorporation mechanism of colloidal TiO2 nanoparticles and their effect on properties of coatings grown on 7075 Al alloy from silicate-based solutio…
2021
Plasma electrolytic oxidation (PEO) was applied using a pulsed unipolar waveform to produce Al2O3-TiO2 composite coatings from sol electrolytic solutions containing colloidal TiO2 nanoparticles. The sol solutions were produced by dissolving 1, 3, and 5 g/L of potassium titanyl oxalate (PTO) in a silicate solution. Scanning electron microscopy, energy dispersive spectrometry, X-ray diffraction, and Raman spectroscopy were applied to characterizing the coatings. Corrosion behavior of the coatings was investigated using polarization and impedance techniques. The results indicated that TiO2 enters the coating through all types of micro-discharging and is doped into the alumina phase. The higher…