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In today's Internet, services are very different in their requirements on the underlying transport network. In the future, this diversity will increase and it will be more difficult to accommodate all services in a single network. A possible approach to cope with this diversity within future networks is the introduction of support for running isolated networks for different services on top of a single shared physical substrate. This would also enable easy network management and ensure an economically sound operation. End-customers will readily adopt this approach as it enables new and innovative services without being expensive. In order to arrive at a concept that enables this kind of network, it needs to be designed around and constantly checked against realistic use cases. In this contribution, we present three use cases for future networks. We describe functional blocks of a virtual network architecture, which are necessary to support these use cases within the network. Furthermore, we discuss the interfaces needed between the functional blocks and consider standardization issues that arise in order to achieve a global consistent control and management structure of virtual networks.
For the EU “effective multilateralism” in, with and within international organisations is the foundation of a system of global governance, so is laid down in the ESS. Therefore the term is used to label the EU’s activities in the UN-family and to characterise the relations with the UN in the wider context of global governance. It is the political argument for the EU’s commitment in military crisis management, side by side with UN peacekeepers. The UN in turn speaks of multilateralism to call for the EU’s loyalty and partnership. Both organisations build their partnership on the common normative ground of multilateralism. The paper questions these rhetorical denominations critically. It goes beyond the political declarations to analyse the degree and quality of “effective multilateralism” in reality in and with international organisations, using the example of UN-EU-relations in military crisis management. The theoretical approach of multilateralism serves as the starting point of the analysis and theoretical basis of the paper (Chapter 1). The special EU-touch in “effective multilateralism” in comparison to the “UN-touch” is subject of Chapter 2. This analysis is necessary due to the meanwhile inflationary use of the term “effective multilateralism” in almost every CSFP context. Are the institutional steps to a partnership in crisis management as well as the operational collaboration in DR Congo (2003/2006/2009) and Chad/CAR (2008/2009) in line with “multilateralism”? is the question that is answered in the paper (Chapter 3).
Rabbit antibodies to RNA polymerase I from a rat hepatoma have been used to localize the enzyme in a variety of cells at the light and electron microscopic level. In interphase cells the immunofluorescence pattern indicated that polymerase I is contained exclusively within the nucleolus. That this fluorescence, which appeared punctated rather than uniform, represented transcriptional complexes of RNA polymerase I and rRNA genes was suggested by the observation that it was enhanced in regenerating liver and in a hepatoma and was markedly diminished in cells treated with actinomycin D. Electron microscopic immunolocalization using gold-coupled second antibodies showed that transcribed rRNA genes are located in, and probably confined to, the fibrillar centers of the nucleolus. In contrast, the surrounding dense fibrillar component, previously thought to be the site of nascent prerRNA, did not contain detectable amounts of polymerase I. During mitosis, polymerase I molecules were detected by immunofluorescence microscopy at the chromosomal nucleolus organizer region, indicating that a considerable quantity of the enzyme remains bound to the rRNA genes. From this we conclude that rRNA genes loaded with polymerase I molecules are transmitted from one cell generation to the next one and that factors other than the polymerase itself are involved in the modulation of transcription of DNA containing rRNA genes during the cell cycle.
Modern immersive multimodal technologies enable the learners to completely get immersed in various learning situations in a way that feels like experiencing an authentic learning environment. These environments also allow the collection of multimodal data, which can be used with artificial intelligence to further improve the immersion and learning outcomes. The use of artificial intelligence has been widely explored for the interpretation of multimodal data collected from multiple sensors, thus giving insights to support learners’ performance by providing personalised feedback. In this paper, we present a conceptual approach for creating immersive learning environments, integrated with multi-sensor setup to help learners improve their psychomotor skills in a remote setting.
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Pour faire la lumiere as lais? Mittelalterliche Handbücher des Glaubenswissens und ihr Publikum.
(1987)
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