Suchergebnisse

La política monetaria ha jugado un papel decisivo en la recuperación de la crisis pandémica a pesar del limitado margen de maniobra de sus instrumentos más ortodoxos. La actitud decidida del Banco Central Europeo (BCE) y la coordinación con las políticas fiscal y macroprudencial han sido fundamentales. El reto ahora es revertir las medidas expansivas sin trabar la recuperación.

The new century imposes new and complex ways of carrying out political-communicative activity, mediated by the infl uence of technologies that contribute to the empowerment of hegemonic and provocative interests in some countries to the detriment of many weaker ones. However, in accordance with the subversive activity - of which Cuba has been a point of focus since the triumph of the Revolution itself - it has been diversifying and creating increasingly apocryphal and seductive methods, with the intention of communicating the politics in terms of promoting a crusade or war of thought in predetermined scenarios, in which attachments, aspirations and expectations of dominance gain ground. ; El nuevo siglo impone nuevas y complejas formas de realización de la actividad político-comunicativa, mediada por el influjo de las tecnologías que contribuyen con el empoderamiento de intereses hegemónicos y provocadores de algunos países en detrimento de otros muchos más débiles. Mas, en concordancia con la actividad subversiva —de la cual Cuba ha sido punto de mira desde el propio triunfo de la Revolución— se han ido diversifi cando y creando métodos cada vez más apócrifos y seductores, con la intención de comunicar lo político, en función de promover una cruzada o guerra de pensamiento en escenarios prefijados, en los que ganen terreno apegos, aspiraciones y expectativas de dominio.

In 711 AD, Muslims from North Africa crossed the Straits of Gibraltar and conquered most of Christian Visigothic Spain. Confrontations between Muslims and Berbers allowed Abd Al-Rahman I to come to the throne of the Ommiad dynasty in 756 and gain political independence of Al-Andalus from Baghdad. In 929, religious independence was also achieved when Abd Al-Rahman III proclaimed himself the Caliph of Cordova. With this victory, the Ommiads sought to consolidate the commercial routes in the western Mediterranean, thus securing the gold supply from North Africa. Cordova, the capital city of Caliphate, reached 100,000 inhabitants and became the most important metropolis at that time. It became a great cultural, industrial, and mining centre, especially when Caliph Al- Hakam II ascended the throne in 961

Butanol is currently used as solvent in industry and is produced from petroleum. The biologic origin of butanol is becoming more interesting because of the biochemical improvement of the ABE fermentation process from different agro-food wastes [1] Bio-butanol shows better physical and chemical properties than ethanol as fuel in internal combustion engines [2] and is a promise biofuel for the future. The n-butanol isomer has been selected for this tests because it is to be used in the "Waste To Fuels" Research Project supported by the European Union. In this work, preliminary tests of a CFR variable compression ratio engine fueled with pure n-butanol are presented and compared with gasoline and ethanol.