1,547 research outputs found
Unidimensional model of the ad-atom diffusion on a substrate submitted to a standing acoustic wave II. Solutions of the ad-atom motion equation
The ad-atom dynamic equation, a Langevin type equation is analyzed and solved
using some non-linear analytical and numerical tools. We noticeably show that
the effect of the surface acoustic wave is to induce an effective potential
that governs the diffusion of the ad-atom: the minima of this effective
potential correspond to the preferential sites in which the ad-atom spends more
time. The strength of this effective potential is compared to the destructuring
role of the thermal diffusion and to the crystalline potential induced by the
substrate
Los derechos de los nacionales de terceros países en la Unión Europea: situación jurídico-política tras la proclamación de la Carta de los Derechos Fundamentales de la Unión
Con la entrada en vigor del Tratado de Amsterdam (1 de mayo de 1999) emerge jurídicamente la cuestión
del asilo y de la inmigración como una política comunitaria (Título IV del TCE); con el Consejo
Europeo de Tampere (15-16 de octubre de 1999) se inicia el pistoletazo de salida para la creación del
llamado espacio de libertad, seguridad y justícia; y en el Consejo Europeo de Niza (diciembre del 2000)
se proclama la Carta de los Derechos Fundamentales de la Unión que constituye una pieza esencial
de naturaleza política que está empezando a influir en el sistema comunitario de derechos y obligaciones
de los nacionales de terceros países en la Unión.
Este artículo tiene como objetivo destacar la contribución de dicha Carta a la aplicación efectiva de una
política de integración, junto con las medidas legislativas propuestas por la Comisión por lo que se refiere
a los derechos de los nacionales de terceros países.With the entry into force of the Treaty of Amsterdam (May 1, 1999) the question arises legally
of asylum and immigration as a Community policy (Title IV TEC), with the Council
Tampere European (15-16 October 1999) will kick-start the creation of the
named area of freedom, security and justice, and in the Nice European Council (December 2000)
proclaimed the Charter of Fundamental Rights which constitutes an essential part
political nature is beginning to influence the Community system of rights and obligations
nationals of third countries in the Union.
This article aims to highlight the contribution of the Charter to the effective implementation of a
integration policy, along with the legislative measures proposed by the Commission with regard
to the rights of third-country national
La Orden de Detención y Entrega Europea
The approval of the European arrest warrant is an important step towards the
creation of the European judicial área. It is the first significant instrument adopted
on the basis of the principie of mutual recognition. While every day new difficulties
arise in the process of harmonisation of substantive criminal law in the Union (for
example, the endless debates on fixing penalties), applying the principie of mutual
recognition to the European arrest warrant has made it possible (undoubtedly under
considerable political pressure) to achieve genuine progress in realising the área of
freedom, security and justice.
The European arrest warrant must replace the mechanisms for extradition between
the Member States that are currently in forcé. The scope of the European arrest
warrant covers all the situations that were previously provided for under the 1957
European Convention on Extradition. The Framework Decisión will replace the complex
legal corpus consisting until now of the European Convention on Extradition
and its two protocols, Chapter IV of Title III of the Convention Implementing the
Schengen Agreement, and the two European Union Conventions on Extradition of
1995 and 1996. In this respect it will be a valuable and, hopefully, effective tool
for the experts.
With a view tó the subsequent work of implementing and evaluating the Framework
Decisión, this note aims to give an initial overview of the key provisions of
the text, compare the text adopted with the Commission's initial proposals and, above
all, highlight the questions which remain to be addressed and on which there will
have to be more work as the process advances
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