Area-driven partial reconfiguration for SEU mitigation on SRAM-based FPGAs

This paper presents an area-driven Field-Programmable Gate Array (FPGA) scrubbing technique based on partial reconfiguration for Single Event Upset (SEU) mitigation. The proposed method is compared with existing techniques such as blind and on-demand scrubbing on a novel SEU mitigation framework implemented on the ZYNQ platform, supporting various SEU and scrubbing rates. A design space exploration on the availability versus data transfers from a Double Data Rate Type 3 (DDR3) memory, shows that our approach outperforms blind scrubbing for a range of availability values when a second order polynomial IP is targeted. A comparison to an existing on-demand scrubbing technique based on Dual Modular Redundancy (DMR) shows that our approach saves up to 46% area for the same case study

Comparison of Psychological Distress between Type 2 Diabetes Patients with and without Proteinuria

We investigated the link between proteinuria and psychological distress among patients with type 2 diabetes mellitus (T2DM). A total of 130 patients with T2DM aged 69.1±10.3 years were enrolled in this cross-sectional study. Urine and blood parameters, age, height, body weight, and medications were analyzed, and each patient’s psychological distress was measured using the six-item Kessler Psychological Distress Scale (K6). We compared the K6 scores between the patients with and without proteinuria. Forty-two patients (32.3%) had proteinuria (≥±) and the level of HbA1c was 7.5±1.3%. The K6 scores of the patients with proteinuria were significantly higher than those of the patients without proteinuria even after adjusting for age and sex. The clinical impact of proteinuria rather than age, sex and HbA1c was demonstrated by a multiple regression analysis. Proteinuria was closely associated with higher psychological distress. Preventing and improving proteinuria may reduce psychological distress in patients with T2DM

DeSyRe: On-demand system reliability

The DeSyRe project builds on-demand adaptive and reliable Systems-on-Chips (SoCs). As fabrication technology scales down, chips are becoming less reliable, thereby incurring increased power and performance costs for fault tolerance. To make matters worse, power density is becoming a significant limiting factor in SoC design, in general. In the face of such changes in the technological landscape, current solutions for fault tolerance are expected to introduce excessive overheads in future systems. Moreover, attempting to design and manufacture a totally defect-/fault-free system, would impact heavily, even prohibitively, the design, manufacturing, and testing costs, as well as the system performance and power consumption. In this context, DeSyRe delivers a new generation of systems that are reliable by design at well-balanced power, performance, and design costs. In our attempt to reduce the overheads of fault-tolerance, only a small fraction of the chip is built to be fault-free. This fault-free part is then employed to manage the remaining fault-prone resources of the SoC. The DeSyRe framework is applied to two medical systems with high safety requirements (measured using the IEC 61508 functional safety standard) and tight power and performance constraints. (C) 2013 Elsevier B.V. All rights reserved

Corruption and economic competitiveness: What greece can tell us

Under the assumption that economic competitiveness has a significant impact on the overall level of corruption in a given country, the present study evaluates the influence that a wide array of national reforms related to the pillars of structural competitiveness has on corruption in the case of Greece. In order to inform national and regional policies against corruption, three indices were calculated that express: (1) the impact of each specific reform on corruption; (2) the required reform effort and (3) the efficiency of the reform index, taking into consideration the competitiveness gap between Greece and Switzerland – the country with the best performance worldwide in terms of competitiveness. These indicators may indicate which reforms have the highest payoff in terms of corruption abatement, which are less costly to undertake and which deliver the greatest reduction in corruption per required effort, respectively. The empirical results of this study suggest that in a number of areas the associated reforms may translate into lower levels of corruption. Under this conceptual framework, institutions seem to be of high importance as they have a substantial impact as far as the reduction of corruption is concerned, with relatively low reform effort. Therefore, a comprehensive policy reform referring to the pillars of structural competitiveness is expected to deliver lower levels of corruption in Greece, allowing the substantial increase of its competitiveness and hence its faster convergence with the more advanced economies in the European Union

Exploring tourism activity in countries and regions of Europe in the recent period of crisis

5sireservedmixedRontos K; Salvati L; Syrmali M; Vavouras I; Karagkouni ERontos, K; Salvati, L; Syrmali, M; Vavouras, I; Karagkouni,

Lost in protest, found in segregation: Divided cities in the light of the 2015 "Οχι" referendum in Greece

6sinoneThe referendum held in Greece on the 5th of July 2015 about the rejection of the conditions for a new loan sought by European Commission, European Central Bank and International Monetary Fund, become an event of great symbolic importance to national and even continental scale, although its precise scope and meaning were to a large extent loose. Participation to vote was rather high (62.5% of the electorate) and the electorate spoke widely in favour of the 'no' (61.3%). The concentration of 'no' and 'yes' votes followed a polarized distribution in the urban area of Athens. The present study analyzes the geographical distribution of 'no' votes at the municipal scale in the metropolitan region of Athens testing for the influence of the local socioeconomic context considering 67 indicators explored through the use of multivariate statistics. The polarization of the referendum vote reflects territorial disparities observed at both urban scale (distinguishing urban districts east, north and south of Athens from those situated west of Athens) and metropolitan scale (based on the urban-rural gradient). The percentage of 'no' votes at the municipal scale was correlated negatively with average per-capita declared income. Concentration of farmers and tourism activities, population growth rate and the enforcement of a municipal master plan were additional predictors of the spatial variability of 'no' votes. Going beyond the traditional division between 'left' and 'right' urban neighbourhoods, the spatial distribution of 'no' votes in Athens reflects socioeconomic disparities consolidated during recession.noneRontos K.; Grigoriadis E.; Sateriano A.; Syrmali M.; Vavouras I.; Salvati L.Rontos, K.; Grigoriadis, E.; Sateriano, A.; Syrmali, M.; Vavouras, I.; Salvati, L