Results 61 to 70 of about 3,913,795 (311)
Advanced Science, EarlyView.A new zinc hybrid guanidine catalyst [Zn{(R,R)TMGNMe2(1,2)ch}2](OTf)2 (C1) shows very high catalytic activity in the polymerization of cyclic esters and in the depolymerization of these polyesters. Using C1 in the ring‐opening polymerization of lactide and caprolactone under industrially relevant conditions, astonishing rate constants of the same order
Tabea Becker +8 more
wiley +1 more source
La Torre de madera del Castilo de Constantina (Sevilla)
Historia. Instituciones. Documentos, 2009 Constantina Castle is located in the Sierra Norte in the province of Seville. Constantina was the principal town of a district (iqlim) during the al-Andalus period and later, after the Christian conquest, it became the principal town of the Sierra Norte,
Magdalena Valor Piechotta
doaj
Advanced Science, EarlyView.Two microwave‐assisted synthetic methods, specifically a one‐pot and a seeded‐growth approach, are developed within a hydroalcoholic solution for the growth of single‐phase ternary WxTi1‐xO2 and heterostructured TiO2‐WO3‐x colloidal nanocrystals. Both types of nanocrystals show significant photocatalytic activity for 4‐methoxybenzyl alcohol oxidation ...
Riccardo Scarfiello +13 more
wiley +1 more source
Las fortificaciones de la Baja Edad Media en la provincia de Sevilla
Historia. Instituciones. Documentos, 2004 La arquitectura militar bajomedieval cristiana que se conserva en la provincia de Sevilla es numerosa. La etapa constructiva más intensa fue el siglo XIV, como resultado de la defensa y señorialización del territorio.
Magdalena Valor Piechotta
doaj
Nietzsche: da genealogia à transvaloração dos valores
Aufklärung, 2020 O presente trabalho tem por objetivo esclarecer de que forma a noção de valor assume um papel fundamental para compreensão da última fase da obra de Nietzsche.
Scarlett Marton
doaj +1 more source
Valores semióticos y valores pictóricos
Tópicos del Seminario, 2016 El punto de partida de este estudio es muy simple; a propósito de la pintura, existen numerosos comentarios tanto por parte de los mejores analistas como por parte de los mismos pintores que, de manera inesperada, si nos ponemos a pensarlo, atañen al valor de la frescura.
openaire +1 more source
Demo 9. Medida de la temperatura: termómetro de infrarrojos [PDF]
, 2013 Objetivo: Mostrar dispositivos variados para la medida de la temperatura basados en diversas propiedades y principios físicos que dependen de la temperatura (termómetros por dilatación, de resistencia, termopar y termómetro de infrarrojos).
Valor i Micó, Enric
core
Advanced Science, EarlyView.Scheme illustrating the selective conversion of plastic waste to isomerized C4‐C12 products using RuSZ1 under different reaction conditions. ABSTRACT In recent years, catalytic hydrocracking has emerged as a promising waste‐to‐feedstock solution for processing plastic waste.
Xinbang Wu +8 more
wiley +1 more source
As cooperativas entre a verdade e a validade
Boletín de la Asociación Internacional de Derecho Cooperativo, 2014 A declaração vigente para a Aliança Cooperativa Internacional sobre a identidade cooperativa desde o seu Congresso Centenário de 1995 (realizado em Manchester) não distingue a cooperação da cooperativa.
Guilherme Krueger
doaj +1 more source
Advanced Science, EarlyView.CuO and CuPO (Cu2P2O7 and Cu3(PO4)2) as precursors are in suit construction two distinct copper‐based active sites during the NO3RR reaction: Cu1+/Cu0 (derived from CuO) and Cu2+/Cu0 (derived from CuPO). Cu1+/Cu0 is the key to achieving high activity and high selectivity.
Shanna An +3 more
wiley +1 more source