uses the PowerPC core of the Cell/BE for file prefetching and decentralized DMAs from the synergistic processing cores (SPE’s), improves the performance for I/O workloads that include an encryption/decryption component by 30.2%, compared to I/O performed naïvely from the SPE’s. 1.

of sustainability. This argument is supported by evidence of the instructive Berlin’s case. Athens ’ case, is also employed in this paper, providing further empirical evidence from a second European metropolitan area. Key-Words: water saving, domestic water, urban infrastructure, water management, water supply

continuous function x : T ! R N satisfying (1) above. Recall that by Lebesgue's theorem the function x(\Delta) is almost everywhere differentiable and x 2 L 1 (T; R N ). Earlier works on periodic solutions of differential inclusions considered only systems with convex-valued orientor fields. We

In the 1960s, economists knew or thought they knew the kind of policy which would yeild improvements in economic performance beneficial to everyone. The neo-Keynesian view together with the Phillips curve was the dominant theory which has given the quidelines to the policymakers. The key element

. Finally some applications: direct modulation at 7Gb/s and transmission through 100km, wavelength conversion in similar data rates by exploiting cross gain modulation (XGM) and a 10 dB optical amplification at 10Gb/s modulated.

Abstract:- This paper presents an e-learning system, which aims to introduce the users in paleography, specifically in Greek pearlscript type paleography of the 19th to the 12th century, which is a representing sample of the Byzantine writing. It is aimed to scholars interested in paleography giving them fundamental knowledge. This e-learning system is available via Internet and as a cd-rom. It is the first e-learning system for the Greek paleography, with content taken from “The book of Jove ” and provides interactive and multiform education. It consists a part of the D-Scribe Project, which is a complete program for the recording, manipulation, recognition and management of valuable Greek manuscripts. Key-Words:- e-learning, paleography, transcription, interactive learning 1

this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder. 2 Dimitrios Lekkas and Dimitrios Zissis Leveraging the e-passport PKI to achieve interoperable

) and Dimitrios Nikolopoulos (U. of Crete and FORTH-ICS). As computer manufacturers are embarking on the multi-core roadmap, which promises a doubling of the number of processors on a chip every other year, the programming community is faced with a severe dilemma. Until now, software has been developed with a

it is published in its final citable form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. High Order pLSA for Indexing Tagged Images S. Nikolopoulos a,b, ∗ , S. Zafeiriou c, I. Patras b, I

Essential parts of this paper were prepared while Sebnem Kalemli-Ozcan was visiting the European Central Bank as 2008 Duisenberg Fellow. She thanks the economists at the Bank for providing a stimulating research environment. We thank Dimitrios Rakitzis for excellent research assistance. Fabio