951 resultados para Actuarial instrument


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Introduction. The Chinese leader Xi Jinping presented the concept of the New Silk Road – a collection of land and maritime routes – in autumn 2013. Initially, it envisaged the creation of a network of infrastructural connections, mainly transport corridors, between China and its most important economic partner – Europe. The concept grew in importance throughout 2014 to become the key instrument of China’s foreign policy, especially in the areas of public diplomacy and soft power. Towards the end of 2014, the Chinese government announced it would establish a Silk Road Fund worth US$40 billion. The New Silk Road idea is a flexible formula used by China in its dialogue with many other countries. Its inclusive nature helps contribute to diluting the negative impression caused by China’s rapid economic expansion and assertiveness in foreign policy, especially with regard to its neighbours. The process of implementing the New Silk Road concept will allow China to expand its influence within its neighbourhood: in Central and South-Eastern Asia. The New Silk Road will be an alternative point of reference to the US dominance and Russian integration projects in these regions. The concept will legitimise and facilitate the growth of China’s influence in the transit countries on the route to Western Europe, i.e. in the Middle East (Arab countries, Israel and Turkey, the Horn of Africa and Central Europe (the Balkans and the Visegrad Group countries). This concept is also essential for China’s domestic policy. It has become one of Xi Jinping’s main political projects. It will boost the development of China’s central and western provinces. The fact that the concept is open and not fully defined means that it will be a success regardless of the extent to which it will be implemented in practice. Its flexible nature allows China to continue investments already initiated bilaterally and to present them as components of the New Silk Road concept.

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The EU enlargement engine seems to have run out of political steam. Support within the member countries for future enlargement is at all-time low, while some of the candidate countries have also seemed to put the enlargement process on the backburner. However, at least rhetorically, the EU is still committed to the enlargement process and maintains its entire enlargement tool box, such as the Instrument for Pre-Accession (IPA) – one of the most important EU external financial instruments. The new IPA regulation (IPA II), adopted in March 20141, clearly reflects the fact that the enlargement process is on a holding pattern.

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The presence of polyoxymethylene (POM) in cometary grains has been debated years ago. Although never proven, its presence can not be excluded. Rosetta, the ESA mission to comet 67P/Churyumov–Gerasimenko, may answer this question. On board the spacecraft, COSIMA (COmetary Secondary Ion Mass Analyzer) will analyze the grains ejected from the nucleus using a Time Of Flight Secondary Ion Mass Spectrometer (TOF-SIMS). In this paper we report the extent to which COSIMA will be able to detect POM if this compound is present on cometary grains. We have analyzed two kinds of POM polymers with a laboratory model of COSIMA. Positive mass spectra display alternating sequence of peaks with a separation of 30.011 Da between 1 and 600 Da related to formaldehyde and its oligomers but also to the fragmentation of these oligomers. The separation of 30.011 Da of numbers peaks, corresponding to the fragmentation into H2CO is characteristic of POM and we show that it could be highlight by mathematical treatment. POM lifetime on COSIMA targets have also been studied as POM is thermally instable. It can be concluded that the cometary grains analysis have to be planned not too long after their collection in order to maximize the chances to detect POM. This work was supported by the Centre National d'Etudes Spatiales (CNES).