Amphíbio: seafront narrations, memory and urban identity

The preservation of port heritage is of paramount importance for coastal cities and countries, particularly in the Mediterranean region. However, with an aging population and shifting societal norms coupled with evolving sea routes, the traditions once centered around waterfronts, specifically port cities, are gradually eroding. This thesis aims to reassess human interaction with urban seafronts, exploring the potential for a novel museological approach that can facilitate the observation of cultural phenomena while preserving the collective memory and even providing a sanctuary within an Object Oriented Ontology framework

The role of bilingualism, age of onset of L2 acquisition & literacy in sentence repetition: The case of Albanian-Greek speaking children

The present study examines how bilingualism, age of onset (AoO) of exposure to Greek and degree of literacy affect the performance of Greek/Albanian bilingual children on a Sentence Repetition (SR) task. Sixty 8 to 10-year-old children were tested, twenty per group, i.e. monolinguals, simultaneous bilinguals and late- sequential bilinguals. The analysis showed that (a) the monolingual group outperforms the bilingual groups, (b) there is strong relationship between vocabulary development and SR performance and (c) the amount of early and current oral input in Greek affects SR performance

Language external and language internal factors in the acquisition of gender: the case of Albanian-Greek and English-Greek bilingual children

© 2017 Informa UK Limited, trading as Taylor & Francis Group The aim of this experimental study is to examine the development of gender assignment and gender agreement in bilingual Albanian-Greek and English-Greek children as well as the exploitation of gender cues on the noun ending in real and pseudo-nouns. Four gender tasks were designed, two targeting gender assignment (determiner + noun production) and two gender agreement (predicate adjective production). Performance is investigated in relation to the role of (positive) L1 transfer (Albanian vs. English), the role of the bilingual’s vocabulary knowledge in Greek as well the role of input factors including the monolingual/bilingual school contexts and the role of parental education as a proxy for socioeconomic status (SES). The results show a strong interaction between the bilinguals’ performance and their Greek vocabulary development and a negative link between gender accuracy and use of the other language

Influence of Ultrasonication Parameters on Physical Characteristics of Olive Oil Model Emulsions Containing Xanthan

Ultrasonic emulsification of 20-wt.% o/w emulsions (pH 3.8) containing a food-grade emulsifier (whey protein isolate, WPI, 2.7 wt.%) and xanthan gum (XG, 0.25 wt.%) was performed. Time and amplitude of ultrasonic treatment changed in order to evaluate their influence on emulsion droplet size, viscosity, and stability (by multiple light scattering (MLS) profiles) during cold storage (10 days at 5 °C). Ultrasonic treatment duration changed from 1 to 4 min at constant amplitude of 70 %. Considering the amplitude, intervals of 40, 60, 80, and 100 % were chosen, for a constant time of 1 min. Similarly, time and amplitude conditions were used to treat solutions of XG of 1 wt.% and evaluate their influence on viscosity and how that was related to the stability of the emulsion. Increase in sonication time from 1 to 4 min led to a significant oil droplet size decrease from 1.14 to 0.89 μm (median droplet diameter). The viscosity of emulsions and XG solutions was highly influenced and considerably decreased with sonication time applied. At those conditions, an increase of backscattering was observed from 58.9 to 72.7 % after 10 days of storage, meaning that more stable emulsions, thinner and of smaller oil droplet size were produced. A similar trend was observed when the amplitude was increased, but droplet size and creaming were always greater than those noticed by changing the sonication time. However, the rate of viscosity, droplet size, and stability change was greater by increasing the amplitude rather than by changing the sonication time. © 2014 Springer Science+Business Media New York

The effect of olive oil and fenugreek gum content on the stability and oxidation of o/w macro-and submicron-nanoemulsions

Within the last few years numerous polysaccharide extracts have been proposed as emulsion stabilizing agents. This increased interest arises from the fact that commonly used food polysaccharides like guar gum are used in non-food applications, mainly in petroleum refining and pharmaceuticals(Vaughnaetal). Along with the lower global production this has resulted in price fluctuations, consequently severe price increase and supply shortage(Bahamdanetal, Baratietal, Anonetal). From a dietary point of view, the viscous property of fenugreek gum (Trigonella foenum graecum L.)has been proved to reduce in vitro the absorption of glucose and the plasma levels of triglycerides and cholesterol in vivo and could be used when designing low - at emulsified products. Ultrasonic emulsification is a cost effective technique and the interest for scale- up is increasing,as it is considered a “Green Processing” technology for the manufacture of nanoemulsions

Ultrasonic energy input influence on the production of sub-micron o/w emulsions containing whey protein and common stabilizers

Ultrasonication may be a cost-effective emulsion formation technique, but its impact on emulsion final structure and droplet size needs to be further investigated. Olive oil emulsions (20 wt%) were formulated (pH 7) using whey protein (3 wt%), three kinds of hydrocolloids (0.1–0.5 wt%) and two different emulsification energy inputs (single- and two-stage, methods A and B, respectively). Formula and energy input effects on emulsion performance are discussed. Emulsions stability was evaluated over a 10-day storage period at 5 C recording the turbidity profiles of the emulsions. Optical micrographs, droplet size and viscosity values were also obtained. A differential scanning calorimetric (DSC) multiple cool–heat cyclic method (40 to 40 C) was performed to examine stability via crystallization phenomena of the dispersed phase. Ultrasonication energy input duplication from 11 kJ to 25 kJ (method B) resulted in stable emulsions production (reduction of back scattering values, dBS 1% after 10 days of storage) at 0.5 wt% concentration of any of the stabilizers used. At lower gum amount samples became unstable due to depletion flocculation phenomena, regardless of emulsification energy input used. High energy input during ultrasonic emulsification also resulted in sub-micron oil-droplets emulsions (D50 = 0.615 lm compared to D50 = 1.3 lm using method A) with narrower particle size distribution and in viscosity reduction. DSC experiments revealed no presence of bulk oil formation, suggesting stability for XG 0.5 wt% emulsions prepared by both methods. Reduced enthalpy values found when method B was applied suggesting structural modifications produced by extensive ultrasonication. Change of ultrasonication conditions results in significant changes of oil droplet size and stability of the produced emulsions

An investigation of the factors that influence participation in mammography screening in Greece

This thesis examines and explores women's mammography screening experiences and the factors influencing women's screening behaviours and choices. The sample consisted of Greek women who were recruited from women's organizations in Athens. 189 women completed a survey questionnaire about their values and beliefs in relation to mammography screening, 33 of whom subsequently underwent an in-depth interview to explore their experiences of mammography screening and their decision-making processes. According to the findings, women's mammography screening behaviour depended to a great extent on the quality and nature of their interactions within their social networks. Thus, the quality of information and meanings derived from these interactions was what determined women's behaviour. Family, close friends and doctors appeared to be important in the formation of women's beliefs, perceptions, emotions (fear of cancer) and behaviour in relation to breast screening. Interestingly, fear of cancer had an opposing effect towards their screening behaviour. A tentative model is presented, which attempts to explain the way these influences affect beliefs, perceptions and mammography screening behaviour, using elements of existing behavioural models. Further exploration of the influential factors and associations identified in this study is required