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Search Results: 1 - 10 of 432 matches for " Katerina Aligizaki "
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Update on Methodologies Available for Ciguatoxin Determination: Perspectives to Confront the Onset of Ciguatera Fish Poisoning in Europe
Amandine Caillaud,Pablo De la Iglesia,H. Taiana Darius,Serge Pauillac,Katerina Aligizaki,Santiago Fraga,Mireille Chinain,Jorge Diogène
Marine Drugs , 2010, DOI: 10.3390/md8061838
Abstract: Ciguatera fish poisoning (CFP) occurs mainly when humans ingest finfish contaminated with ciguatoxins (CTXs). The complexity and variability of such toxins have made it difficult to develop reliable methods to routinely monitor CFP with specificity and sensitivity. This review aims to describe the methodologies available for CTX detection, including those based on the toxicological, biochemical, chemical, and pharmaceutical properties of CTXs. Selecting any of these methodological approaches for routine monitoring of ciguatera may be dependent upon the applicability of the method. However, identifying a reference validation method for CTXs is a critical and urgent issue, and is dependent upon the availability of certified CTX standards and the coordinated action of laboratories. Reports of CFP cases in European hospitals have been described in several countries, and are mostly due to travel to CFP endemic areas. Additionally, the recent detection of the CTX-producing tropical genus Gambierdiscus in the eastern Atlantic Ocean of the northern hemisphere and in the Mediterranean Sea, as well as the confirmation of CFP in the Canary Islands and possibly in Madeira, constitute other reasons to study the onset of CFP in Europe [1]. The question of the possible contribution of climate change to the distribution of toxin-producing microalgae and ciguateric fish is raised. The impact of ciguatera onset on European Union (EU) policies will be discussed with respect to EU regulations on marine toxins in seafood. Critical analysis and availability of methodologies for CTX determination is required for a rapid response to suspected CFP cases and to conduct sound CFP risk analysis.
The Use of Lasers for the Removal of Shellac from Wood
M. Aligizaki,K. Melessanaki,A. Pournou
E-Preservation Science , 2008,
Abstract: The removal of shellac is a common but challenging task inthe conservation of wooden artifacts. In this work, experimentswere performed to assess the suitability of lasers forcleaning non aged shellac from pine and oak mock–ups.Optimal laser parameters were determined for preservingthe integrity of the original wooden substrate during thecleaning process. In particular, the ablation thresholds forshellac and wood were comparatively examined usingexcimer (248 nm) and Nd:YAG (1064 nm) lasers, emittingpulses of nanosecond (ns) or picosecond (ps) duration. Theinduced etching and other morphological alterations to thewood surface were assessed. The results obtained providedstrong evidence for the existence of a window of optimallaser parameters for the safe and efficient removal of shellacfrom wood, in a “self-limiting” process.
Attention Problems and Learning Disabilities in Young Offenders in Detention in Greece  [PDF]
Katerina Maniadaki, Efthymios Kakouros
Psychology (PSYCH) , 2011, DOI: 10.4236/psych.2011.21009
Abstract: Background: The relationship between learning disabilities and juvenile delinquency is widely established. However, the nature of learning disabilities and the pathway through which they are linked to delinquency are not well understood yet. The contribution of third variables, such as Attention Deficit/Hyperactivity Disorder (ADHD) seems as a promising field of research. The primary aim of this study was to investigate the schooling history of young offenders detained in Greek Correctional Centers in order to examine the extent to which learning disabilities may co-exist with psychosocial adversity and/or specific learning disabilities, in particular, attention problems. Method: The Greek version of the Youth Self Report (YSR), the Self-Perception Profile for Children (SPPC) and a questionnaire constructed by the authors were used in the study. Results: Schooling his- tory of the young offenders was characterized by low attendance, high levels of dropouts, grade retention and academic failure. High co-existence of both psychosocial adversity and attention problems, indicating possible presence of ADHD, was found as well. Conclusions: These findings underline the need for routine ADHD screening at schools for the identification and treatment of those children who are at particular risk to get in- volved in criminal activities. Moreover, the need for the identification of incarcerated youth with ADHD and/or learning disabilities as well as prison staff training are discussed.
Instructors and Students Relations: Argumentativeness, Leadership and Goal Orientations  [PDF]
Alexandra Bekiari, Katerina Balla
Open Journal of Social Sciences (JSS) , 2017, DOI: 10.4236/jss.2017.57009
Abstract: Focusing on argumentativeness, leadership and personal orientations, this study aims at: a) investigating the differences concerning gender and class, b) examining the relation between perceived instructors’ argumentativeness, teaching leadership style and students’ goal orientations, c) investigating the influence of instructors’ argumentativeness on their leadership style and students’ goal orientations in physical education context and d) proposing a students’ and instructors’ typology. The sample consisted of 260 students (127 males, 133 females) aged 10 - 12 years old (M = 11.2, SD = 0.67) from primary public schools who completed three types of questionnaires during physical education classes. The results supported the internal consistency of the instruments. According to the results of the study, statistically significant differences were observed in students’ ego orientation between the genders and the classes of the students. Correlational analysis indicated that perceived instructors’ argumentativeness was positively related to democratic teaching leadership style, students’ task orientations and was negatively related to autocratic teaching leadership style, students’ ego orientations. The results of regression analysis revealed that perceived instructors’ argumentativeness could significantly predict the variables of teaching leadership style and students’ goal orientations. Four behavioral types are revealed: 1) “learning by democracy and arguing”, 2) “just democracy and arguing”, 3) “just ego without learning” and 4) “learning by arguing”.
The Impact of Social Media on Press Freedom in Greece: Benefits, Challenges and Limitations
Essachess : Journal for Communication Studies , 2012,
Abstract: The purpose of the essay is to put light on the expansion of social media in news broadcasting in Greece, highlighting their impact on press freedom and freedom of expression. Taken for granted that the media in Greece (television, radio and print press) have created, except from their “traditional version”, social media profiles (facebook profile, twitter etc.) in order to disseminate the news, the essay investigates the interconnection between the aforementioned use of social media and press freedom. In addition, special focus is given to the challenges that appear from the emergence of social media as news platforms and to the debate that has occurred “for” and “against” this new role of them. Moreover, the essay puts light to some crucial questions that arise:Do social media in Greece, as news platforms, extend freedom of expression and how do they accomplish that? Does the fact that social media empower journalists to provide journalism in more ways than one through tweets, postings, and video and photo uploads, enhance journalists’ freedom of expression and, in a wider sense, the freedom of the press? Has the invasion of social media in the news flow and coverage changed the media landscape in Greece?
Is blood transfusion therapy the ideal treatment for -thalassemia intermedia?
Katerina Constantinou
Open Journal of Hematology , 2012,
Abstract: The thalassemias represent the most common single gene disorder worldwide. The total annual incidence of symptomatic individuals with β-thalassemia is estimated at 1 in 100,000 throughout the world [1] of which nearly 10% have β-thalassemia intermedia (TI) [2]. Several approaches have been used for treating patients with TI including blood transfusions, splenectomy, iron chelation therapy, modulation of foetal haemoglobin and other agents focusing on specific aspects of clinical presentation. However the exact management of the disease is still controversial. A major issue which is not entirely explored is the effect of blood transfusion in the management of patients with β-thalassemia intermedia. There are certain advantages and disadvantages of initiating blood transfusions in TI patients that must be always taken into account in the management of these patients. Therefore, complications that interact with the clinical outcome of treatment and also patient’s quality of life can be avoided to some extend.References:Galanello R, Origa R. Beta-thalassemia. Orphanet J Rare Dis. 2010; 5: 11.Rachmilewitz EA, Giardina PJ. How I treat thalassemia. Blood. 2011; 118: 3479-88.
Korpusbasierte Analyse der Semantik von Idiomen
Stathi, Katerina
Linguistik Online , 2006,
Abstract: Idioms are usually defined in semantic terms as non-compositional units whose meaning does not result from the meaning of their parts. This definition implies that idioms have exactly one meaning. But if we examine idioms in context in large electronic corpora, we observe that the meaning of idioms is contextually variable, like that of words. We observe uses that exceed the range of the conventionalized and (lexicographically) codified meaning. A case study (the German idiom ins Gras bei en, literally "to bite into the grass", 'to die, to bite the dust') is used as an illustration of the relation between core meaning and contextual variability or meaning extension in idioms and the underlying mechanisms of this process.
Katerina Psarikidou
Tourismos : an International Multidisciplinary Journal of Tourism , 2008,
Abstract: The radical tourism development and its adverse environmental impacts have revived the discussion about Environmental Ethics and the emerging Biodiversity Policy. The aim of this research paper is to explore the relationship between environmental ethics, the current Biodiversity and Sustainable Tourism Development policy-making, and the tourism industry. More specifically, the conceptual analysis adopts an environmental ethics’ and environmental politics perspective. Based on the example of caretta caretta case in Greece, the EU Habitats Directive and the tourism development at the area, it is concluded that public consensus and discourse prove to be essential for a shift to a more attentive and less anthropocentic ethical approach by policy-makers and tourism actors’ in a multilevel governance society.
Smoking cessation and the lung: benefits
Dimakou Katerina
Tobacco Induced Diseases , 2005, DOI: 10.1186/1617-9625-3-32
Specific Acts of the Court of Justice of the European Union – Opinions of the Court of Justice
Katerina Yocheva
Acta Universitatis Danubius : Juridica , 2011,
Abstract: The present paper is dedicated to analysis of the problems related to the acts of the judicial authority of the European Union (hereinafter "EU"). Its importance lies in the fact that this EU institution is established at the beginning of the European integration process and has rich history and case-law of more than 60 years, which are to a great extent unfamiliar to the broad public and even to members of the judiciary or to researchers in Bulgaria and Romania – the states that have most recently joined together the EU in 2007. This study aims to contribute to earlier studies dedicated to the work and acts of the various EU institutions, bodies, offices or agencies. The author has made former attempts to explain some specific aspects of the regulation and the functioning of the institutional framework of the Union. In order to achieve better results the analysis is based on survey, observation, comparison and translation of various sources such as EU and international legal acts and case-law and systematisation of the available doctrine in this area. This is an attempt to explain the legal regulation, characteristics and effects of the preliminary opinions of the Court of Justice and to distinguish these acts from other more well-known acts of the Court of Justice. The study may be of special interest to academics and members of the judiciary because it presents in detailed and concise manner the basic features of these unfamiliar but undoubtedly important acts. Its main contribution lies in the fact that it constitutes a first attempt in Bulgaria for a thorough study of those specific acts.
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