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Institution

University of the Aegean

EducationMytilene, Greece
About: University of the Aegean is a education organization based out in Mytilene, Greece. It is known for research contribution in the topics: Population & Tourism. The organization has 2818 authors who have published 8100 publications receiving 179275 citations. The organization is also known as: UAEG.


Papers
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Book ChapterDOI
03 Oct 2007
TL;DR: This paper presents and evaluates a novel and practical method that is able to distinguish between authentic and bogus DNS replies, and demonstrates that the proposed scheme can effectively protect local DNS servers acting both proactively and reactively.
Abstract: DNS amplification attacks massively exploit open recursive DNS servers mainly for performing bandwidth consumption DDoS attacks. The amplification effect lies in the fact that DNS response messages may be substantially larger than DNS query messages. In this paper, we present and evaluate a novel and practical method that is able to distinguish between authentic and bogus DNS replies. The proposed scheme can effectively protect local DNS servers acting both proactively and reactively. Our analysis and the corresponding real-usage experimental results demonstrate that the proposed scheme offers a flexible, robust and effective solution.

90 citations

Journal ArticleDOI
TL;DR: In this article, the authors proposed three main directions that will assist in designing effective tools for measuring and most importantly understanding social impacts: a) perceptions on social impacts of individuals who are directly affected by protected areas need to be incorporated in management evaluation techniques in a meaningful and accurate way and be combined with objective measurements of impact, understanding the factors determining the actual and perceived levels of social impacts is a key step for the design of effective management frameworks of protected areas and

90 citations

Journal ArticleDOI
TL;DR: In this article, the authors investigate the effect of after-sales services on customers' satisfaction as well as on their behavioural intentions, namely "repurchase intention" and "word-of-mouth" (WOM).
Abstract: Purpose – The purpose of this paper is to investigate the effect of after‐sales services on customers' satisfaction as well as on their behavioural intentions, namely “repurchase intention” and “word‐of‐mouth” (WOM).Design/methodology/approach – The research conducted followed a quantitative methodology. The selected research tool was a questionnaire, which was administered via phone interviews using the CATI process. The study conducted was targeted to customers of a large retail chain marketing electrical appliances in Greece and 420 usable responses were utilised. A path analysis was performed using the “Amos 4.0” software.Findings – After‐sales service quality affect satisfaction, which in turn affects behavioural intentions. Hence, after‐sales services affect the overall offering and thus, the quality of the relationship with customers.Research limitations/implications – Limitations are related to the use of only two after‐sales services and the restricted geographical area of the field research.Prac...

90 citations

Journal ArticleDOI
TL;DR: In this article, the authors investigated the aerosol optical properties, namely aerosol extinction optical thickness (AOT), Angstrom parameter and size distribution over the Eastern Mediterranean Basin, using spectral measurements from the recently established FORTH (Foundation for Research and Technology-Hellas) AERONET station in Crete, for the two-year period 2003-2004.
Abstract: In this study, we investigate the aerosol optical properties, namely aerosol extinction optical thickness (AOT), Angstrom parameter and size distribution over the Eastern Mediterranean Basin, using spectral measurements from the recently established FORTH (Foundation for Research and Technology-Hellas) AERONET station in Crete, for the two-year period 2003–2004. The location of the FORTH-AERONET station offers a unique opportunity to monitor aerosols from different sources. Maximum values of AOT are found primarily in spring, which together with small values of the Angstrom parameter indicate dust transported from African deserts, whereas the minimum values of AOT occur in winter. In autumn, large AOT values observed at near-infrared wavelengths arise also from dust transport. In summer, large AOT values at ultraviolet (340 nm) and visible wavelengths (500 nm), together with large values of the Angstrom parameter, are associated with transport of fine aerosols of urban/industrial and biomass burning origin. The Angstrom parameter values vary on a daily basis within the range 0.05–2.20, and on a monthly basis within the range 0.68–1.9. This behaviour, together with broad frequency distributions and back-trajectory analyses, indicates a great variety of aerosol types over the study region including dust, urban-industrial and biomass-burning pollution, and maritime, as well as mixed aerosol types. Large temporal variability is observed in AOT, Angstrom parameter, aerosol content and size. The fine and coarse aerosol modes persist throughout the year, with the coarse mode dominant except in summer. The highest values of AOT are related primarily to southeasterly winds, associated with coarse aerosols, and to a less extent to northwesterly winds associated with fine aerosols. The results of this study show that the FORTH AERONET station in Crete is well suited for studying the transport and mixing of different types of aerosols from a variety of sources, especially those associated with major dust events from the Sahara.

90 citations

Journal ArticleDOI
TL;DR: In this paper, a holistic approach (systems analysis) is applied to operationalise the sustainable development concept and an integrated approach (composite indicator construction) is adopted for the measurement of SD.

90 citations


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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
202345
202292
2021479
2020493
2019543
2018447