36 research outputs found
Naupaktos: topographical evolution of the city and its countryside from the prehistoric period until late antiquity
No full textThe study presents the topographical evolution of Naupaktos and its country in a chronological range of almost 3000 years, mainly based on the results of rescue excavations, which for the most part are presented for the first time in a systematic manner. The chronological range of the dissertation concerns the entire course of the ancient settlement, from the first stages of human habitation in the city to the late Roman and early Byzantine times.Naupaktos is one of the few towns in the area of Aitolia and Akarnania that offers rich excavational data not only from the city itself, but also from the surrounding countryside. The available evidence help us follow its historical and cultural continuity from prehistoric times to late antiquity, from the first dispersed settlements to the city of historical times.Στο πλαίσιο της μελέτης παρουσιάζεται η τοπογραφική εξέλιξη της Ναυπάκτου και της χώρας της σε ένα ευρύτατο χρονολογικό φάσμα σχεδόν 3.000 χρόνων, βασιζόμενη κυρίως σε αποτελέσματα σωστικών αρχαιολογικών ερευνών, που, κατά το μεγαλύτερο μέρος τους, παρουσιάζονται διεξοδικά για πρώτη φορά και με συστηματικό τρόπο. Το χρονολογικό εύρος της διατριβής αφορά σε όλη την πορεία του αρχαίου οικισμού, από τα πρώτα στάδια ανθρώπινης κατοίκησης στο χώρο της πόλης έως τους ύστερους ρωμαϊκούς και πρωτοβυζαντινούς χρόνους. Η Ναύπακτος είναι από τις ελάχιστες πόλεις της περιοχής της Αιτωλοακαρνανίας από την οποία σήμερα μας προσφέρονται πλούσια ανασκαφικά δεδομένα όχι μόνο από το άστυ, αλλά και από την ύπαιθρο χώρα που ανήκε σε αυτή. Τα ευρήματα που έχουμε στη διάθεσή μας έως σήμερα, οικιστικά και ταφικά, βοηθούν να παρακολουθήσουμε ήδη αρκετά καλά την ιστορική και πολιτιστική συνέχειά της από τους προϊστορικούς χρόνους έως την ύστερη αρχαιότητα, από την κατά γένη οργάνωση στην εξέλιξη σε μία οργανωμένη πλέον πόλη. Παράλληλα μέσα από τα αρχαιολογικά δεδομένα παρακολουθείται αρκετά καλά ο μετασχηματισμός των αρχικών μικρών διάσπαρτων οικισμών στο χώρο της πόλης προς το άστυ των ιστορικών χρόνων και η μετάβαση από τη φυλετική, στην πολιτική και αστική οργάνωση. Τα δεδομένα αυτά συντίθεται αυτά ανά χρονική περίοδο μέσα σε ένα σαφές γεωγραφικό και ιστορικό πλαίσιο. Αντίθετα αρκετά μικρότερη είναι η συμβολή των τοπογραφικών πηγών, αρχαίων και νεότερων, οι οποίες παρουσιάζονται επίσης στη μελέτη
The Transition towards Circular Economy in the Dutch Built Environment: An exploratory research on the application of Product-Service Systems as Circular Business Models for the products, components, and materials in the building layers
No full textThe current industrial system is established on one fundamental characteristic: a linear model of resource consumption that follows a ‘take-make-dispose’ pattern. However, the emerging concept of Circular Economy (CE) is proposed to change the current production and consumption patterns that put a significant burden on our planet and its environmental capacity. In this context, scholars argue that the built environment is one of the key sectors that can benefit maximally from the development of CE. The Dutch government recognized this opportunity and in the publication of the Transition Agenda: Circular Economy in the Netherlands by 2050 acknowledged the construction industry as one of the five key economic sectors and value chains which will be the first to make the shift. In order to support the transition towards a circular built environment, experts from academia, policy, and business advocate that innovative business models that allow new ownership relationships are required. In this context, scholars argue that a promising business models for the implementation of circular economy thinking in the sector are product-service systems. This research focuses on buildings which are considered the most complex element within the built environment. Literature on the application of circular economy for buildings suggests looking at them as a collection of interlinking layers. This idea based on the “6S” framework developed by Stewart Brand in 1990s which includes six layers, namely: Site, Structure, Skin, Services, Space Plan, and Stuff. However, researchers argue that there is still great uncertainty regarding the application of circular business models in the Dutch built environment, as well as the fact that the transition from traditional product-oriented business models to service-oriented ones is highly complex and contextual illustrates that further research is required in this area. Therefore, the objective of this thesis is to examine the application of product-service systems as circular business models for the products, components and materials in buildings’ Structure, Skin and Services layers in order to contribute to the Dutch built environment’s shift towards circular economy. As a result, the main research question formulated is: “What is the current state of product-service systems as circular business models in the built environment and how can its application contribute to a circular built environment?” For answering the research question a literature review was conducted in order to examine the relevant concepts, along with expert interviews with the aim to explore the barriers, enablers and opportunities of the application of product-service systems as circular business models. Finally, a case study survey was carried out with the aim to analyze the business models of two companies who are active in the built environment and have successfully applied product-service systems as circular business models. The analysis illustrated that even though numerous opportunities are offered by this business model to both the company and the client when applied in the different building layers, it is not yet accepted in the sector and its application is hindered by several barriers. However, a number of enablers which can facilitate the implementation of product-service systems as circular business models were recognized. In addition, the analysis illustrated that for the successful implementation of product-service systems as circular business model incorporating servitization and circularity characteristics in all business model elements is necessary.Management of Technology (MoT
A poem on the refortification of Dorylaion in 1175
No full text In the summer/autumn of 1175, Manuel Komnenos (1143-1180) undertook the rebuilding of Dorylaion, one of the major aplekta in Asia Minor. For this occasion a poem was written. The strong acquaintance of the poet with the conventions of court literature, the occasional content of the poem and its panegyric character, suggest that the text was written for a small ceremony which took place at Dorylaion. The author is probably an anonymous professional court poet who accompanied Manuel in his expedition. The authorship is further discussed since the manuscript tradition might suggest that John Tzetzes was the author. After a close look at the language, style and metre of the poem, this identification is excluded. In 1908, Spyridon Lambros published the poem on the basis of manuscript Barocci 194 (fifteenth century) of the Bodleian Library. This study re-edits the poem on the basis of two more manuscripts: manuscript Parisinus Graecus 2644 (late thirteenth century) of the Bibliothèque Nationale and Auctarium T.1.10 of the Bodleian Library (sixteenth century). The history of each manuscript is analysed and the relation between them examined. It is established that the Auctarium is a direct copy from the Parisian manuscript. The metrical analysis of the poem follows and special textual problems are discussed. Finally, the translation of the original text is provided. In the summer/autumn of 1175, Manuel Komnenos (1143-1180) undertook the rebuilding of Dorylaion, one of the major aplekta in Asia Minor. For this occasion a poem was written. The strong acquaintance of the poet with the conventions of court literature, the occasional content of the poem and its panegyric character, suggest that the text was written for a small ceremony which took place at Dorylaion. The author is probably an anonymous professional court poet who accompanied Manuel in his expedition. The authorship is further discussed since the manuscript tradition might suggest that John Tzetzes was the author. After a close look at the language, style and metre of the poem, this identification is excluded. In 1908, Spyridon Lambros published the poem on the basis of manuscript Barocci 194 (fifteenth century) of the Bodleian Library. This study re-edits the poem on the basis of two more manuscripts: manuscript Parisinus Graecus 2644 (late thirteenth century) of the Bibliothèque Nationale and Auctarium T.1.10 of the Bodleian Library (sixteenth century). The history of each manuscript is analysed and the relation between them examined. It is established that the Auctarium is a direct copy from the Parisian manuscript. The metrical analysis of the poem follows and special textual problems are discussed. Finally, the translation of the original text is provided.
Redesigning Waste: The Change of perception and implementation of (plastic) waste into the built environment.
No full textThe way the western society currently treats waste is hazardous and can threaten not only the public health but also (very delicate) eco systems. Annually over 87 million tonnes of plastic are being produced. Only 2 % is reintroduced into the original purpose. The rest of this plastic is downcycled, landfilled, burned or leaked into the environment. Because plastic hardly deteriorates and the production of plastic with will not decrease anytime soon these problems will increase over time. The building industry is the biggest consumer of raw materials and has one of the biggest carbon dioxide emissions of the world, therefore the building industry should act in a responsible and responsive way. We have to change our linear economy into a circular economy and thereby change our way of working, living and designing. Redesigning waste focuses on the implementation of the plastic waste stream into the built environment. One of the main focus points understanding plastic as a material and where the negative connotation latched on to this material is coming from and then shifting (the public’s) perception towards a more positive outlook on this alien material. By consulting relevant literature, companies who have experience in the working field and potential customers a (new) roadmap towards the topic of creating value in this undervalued materials has been created
Greek translations of French literature : a contribution to the recording and the study of their presence in the Greek literary world from 1900 to 2010.
No full textCette étude a pour champ l'inventaire des traductions d'œuvres de la littérature française vers le grec, et l'étude de leur présence dans les lettres grecques du début du XXe siècle à l'aube du XXIe siècle.Le constat, en premier lieu, que les traductions jouent un rôle primordial pour la réception en Grèce de la littérature en question et, en deuxième lieu, que leur inventaire sur la période considérée n'était pour l'instant que fragmentaire, nous a conduit à définir comme but de notre recherche le recensement exhaustif des œuvres françaises traduites et publiées en Grèce entre 1900 et 2010 et qui figurent dans les catégories de la prose, la poésie, le théâtre.Le traitement quantitatif et qualitatif de paramètres comme l'année d'édition, l'auteur traduit, l'œuvre traduite, le/la traducteur/-rice, la maison d'édition, ainsi que leur analyse conclusive qui sert de tentative d'interprétation, nous ont permis de dresser un panorama global de l'image de la littérature française traduite dans la langue grecque.This study covers the Greek translations of French literature and their presence in the Greek literary world during the entire twentieth century and at the dawn of the twenty-first. The finding that translations play a crucial role in the absorption of this literature in Greece, and that, to date, their recording within the examined period is fragmented, set a research goal for the fullest possible, accurate and documented recording of any Greek translations of works of French literature (prose - plays - poetry), published in our country in the period from 1900 to 2010.The quantitative and qualitative processing of certain parameters, such as the year of publication of a translation, the translated author, the translator, the translated work and the publisher, as well as the relevant conclusions, intend to contribute to the presentation and overview of the overall image of this translation sector
Cavafy hero: literary appropriations and cultural projections of the poet in English and American literature
No full textThe present thesis examines the way E.M. Forster, Lawrence Durrell, W.H. Auden, Stephen Spender, Joseph Brodsky, and James Merrill appropriated C.P. Cavafy in writings that were disseminated and consumed amongst culturally dominant literary circles, and which eventually determined the Greek-Alexandrian poet’s international reputation. I aim to contribute a new perspective on Cavafy, by evading the text-based tradition of reception studies, and proposing an alternative method of discussing the production of Cavafy's canonical status. Inspired by Pierre Bourdieu's sociological theory, I view literary canonization as involving a variety of factors at play beyond creative achievement: in particular, relationships of 'authorial consecration' whereby writers create and circulate cultural capital through their power to legitimize other artists. The critical and fictional texts I analyse perform readings of Cavafy's poetry alongside imaginative portrayals of the poet's life and personality. I take this complementary relationship - between the image of the poet each author projects and their reading of his work - as a starting point to explore the broader ideas of aesthetics and authorial subjectivity that inform the renderings of Cavafy generated by prominent literary figures. Rather than passive recipients of influence, these figures are considered as active agents in the production of 'Cavafy narratives', appropriating the poet according to their own agendas, while also projecting onto him their own position within the cultural field. Eventually, Cavafy becomes a point of insight into the multiplicity of networks and practices involved in the production of cultural currency; in turn, the study of the construction of Cavafy's authorial identity sheds light on the cumulative processes that have defined the way the poet is read and perceived to the present day. This duality of perspective is essential to a study concerned with the cultural contexts framing the poet's steady rise to international fame throughout the 20th century
Non-Motor Symptoms in Primary Motor Neurological Disorders: from Molecular Pathways to Clinical and Therapeutic Implications
No full textThis eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contac
Cavafy hero: literary appropriations and cultural projections of the poet in English and American literature
No full textThe present thesis examines the way E.M. Forster, Lawrence Durrell, W.H. Auden, Stephen Spender, Joseph Brodsky, and James Merrill appropriated C.P. Cavafy in writings that were disseminated and consumed amongst culturally dominant literary circles, and which eventually determined the Greek-Alexandrian poet’s international reputation. I aim to contribute a new perspective on Cavafy, by evading the text-based tradition of reception studies, and proposing an alternative method of discussing the production of Cavafy's canonical status. Inspired by Pierre Bourdieu's sociological theory, I view literary canonization as involving a variety of factors at play beyond creative achievement: in particular, relationships of 'authorial consecration' whereby writers create and circulate cultural capital through their power to legitimize other artists.
The critical and fictional texts I analyse perform readings of Cavafy's poetry alongside imaginative portrayals of the poet's life and personality. I take this complementary relationship - between the image of the poet each author projects and their reading of his work - as a starting point to explore the broader ideas of aesthetics and authorial subjectivity that inform the renderings of Cavafy generated by prominent literary figures. Rather than passive recipients of influence, these figures are considered as active agents in the production of 'Cavafy narratives', appropriating the poet according to their own agendas, while also projecting onto him their own position within the cultural field.
Eventually, Cavafy becomes a point of insight into the multiplicity of networks and practices involved in the production of cultural currency; in turn, the study of the construction of Cavafy's authorial identity sheds light on the cumulative processes that have defined the way the poet is read and perceived to the present day. This duality of perspective is essential to a study concerned with the cultural contexts framing the poet's steady rise to international fame throughout the 20th century.This thesis is not currently available in OR
Study and architecture of collaborative platform for remote personalized healthcare service delivery
No full textRemote healthcare service provisioning and covering of emergency cases is inherently a complex task which is characterized by high-level requirements for integration and interoperability among the various involved entities in the patient's healthcare treatment regimen of a patient. The collaboration establishment among various heterogeneous and distributed healthcare information systems imposes the addressing of a variety of technical challenges and requirements. The most significant challenges are related to integration and interoperability issues between the various applications and terminal devices offered by a variety of healthcare providers. These requirements cannot be addressed by the existing distributed healthcare systems that have been developed for these purposes. This is mainly due to the fact that they have developed independently and functioned within the strict limits of individual isolated medical structures, such as a hospital with its health centers. Therefore they have limited capabilities in cooperating with each other since there is a lack of common ICT standardized architectures and truly plug-and-play infrastructures among them. In order to address the aforementioned issues, this dissertation thesis focuses on providing innovative architectures, mechanisms and functionality for the integration and interoperability across different services, information and applications. To be more specific, it proposes an innovative and collaborative platform that enables ubiquitous personalized healthcare service provisioning for patients suffering from chronic diseases. The main pillars of this research so as to achieve collaboration lie in the three following levels: application, network and information composition and execcution. The present disseratation thesis, deals with the design and the deployment of a collaborative platform for the healthcare service provisioning oriented to patients suffering from chronic diseases. In this context, the author proposes the general architecture and the functionality for an autonomous, self organizing and self configured platform in order to achieve interoperability and integration between information and services for the composition and the execution of new added value personalized services based on users' current needs. The aim of this platform is to enable the integration of the electronic healthcare records (EHRs) which are distributed in various heterogeneous institutes and individual doctors for the immediate and accurate response to critical events, the reduction in medical errors or costs of hospitalizations and the creation of new added value services based on the patient's profile. Given the complexity of developing a standalone collaboration platform, notably by small-scale providers, the author proposed the deployment of the collaborative platform based on cloud computing paradigm. Deploying the collaborative platform upon cloud computing schemes enables the providers to rent or reuse existing components for messaging, integration, security, management purposes as well as for the development of new applications. The present work strengthens the presence of the healthcare professionals and caregivers into the collaborative scheme in order to avoid wrong diagnosis, medical errors, drug interaction problems and inadequate staffing. For this purpose, two innovative hierarchically distributed networks have been proposed and developed that interconnect the medical and paramedical professionals into groups with common characteristics or interests. The aforementioned hierarchical networks incorporate mechanisms which allow the efficient cooperation of the participants and ensure their interactions providing secure and efficient searching of the required data. In addition, an innovative mechanism has been proposed and implemented for information searching and sharing with multiple criteria based on the principles of controlled flooding in order to support complex queries. This mechanism achieves low response time and limits messaging and signaling overhead which furtherly enhances the efficiency and timely service provisioning. Finally, the patient-centric model has been enhanced taking into acccount the exisstence of comorbidities and multimorbidities so as to prevent the exacerbation episodes and minimizing the diagnostic uncertainty. In this context, a novel framework for general purposes has been incorporated in the architecture of the collaborative platform enabling the management of multiple dideases. It uses machine learning algorithms for evaluating data, detecting exacerbation events and making decisions about the severity level of patient's healthcare status. Through this framework, the healthcare system providers, the institutes and caretakers could dynamically assess and share information regarding to patient's profile as well as manage or prevent exacerbation episodes. As a consequence, the medical errors due to diagnostic uncertainty are reduced.Η παροχή απομακρυσμένων υπηρεσιών υγειονομικής περίθαλψης και η κάλυψη έκτακτων αναγκών είναι εγγενώς μια πολύπλοκη διαδικασία, η οποία απαιτεί καθολική συνεργασία μεταξύ των εμπλεκομένων οντοτήτων στο σχήμα θεραπείας του ασθενούς. Η καθολική συνεργασία προϋποθέτει την ικανοποίηση ενός συνόλου από απαιτήσεις και την αντιμετώπιση πολλαπλών τεχνικών προκλήσεων και ζητημάτων. Οι πιο σημαντικές προκλήσεις σχετίζονται με ζητήματα ολοκλήρωσης και διαλειτουργικότητας μεταξύ των ποικίλων εφαρμογών και τερματικών συσκευών που προσφέρονται από πληθώρα παρόχους υπηρεσιών υγείας. Οι απαιτήσεις αυτές δεν μπορούν να ικανοποιηθούν από τις υπάρχουσες κεντρικές αρχιτεκτονικές που έχουν προταθεί για το σκοπό αυτό, διότι αναπτύχθηκαν και λειτούργησαν στα αυστηρά όρια μεμονωμένων ιατρικών δομών, όπως, για παράδειγμα ένα νοσοκομείο με τα δορυφορικά του κέντρα υγείας και αγροτικά ιατρεία. Με στόχο την αντιμετώπιση των προαναφερθέντων ζητημάτων, η παρούσα Διδακτορική Διατριβή προσφέρει καινοτόμες λύσεις στους τομείς της ολοκλήρωσης και της διαλειτουργικότητας των υπηρεσιών, των δεδομένων και των εφαρμογών. Συγκεκριμένα, προτείνει μια καινοτόμα πλατφόρμα υποστήριξης παντού και πάντοτε εξατομικευμένων υπηρεσιών υγείας σε ασθενείς που πάσχουν από χρόνιες παθήσεις. Οι βασικοί πυλώνες της έρευνας αυτής για την επίτευξη συνεργασίας εκτείνονται σε τρία διαφορετικά επίπεδα: στο επίπεδο εφαρμογών, δικτύου και σύνθεσης της πληροφορίας. Αρχικά, η παρούσα διδακτορική διατριβή, πραγματεύεται το σχεδιασμό και την υλοποίηση μιας πλατφόρμας καθολικής συνεργασίας για την παροχή υπηρεσιών υγειονομικής περίθαλψης σε ασθενείς που πάσχουν από χρόνιες παθήσεις. Στο πλαίσιο αυτό, προτείνεται η γενική αρχιτεκτονική και οι λειτουργίες που πρέπει να υποστηρίζονται για την επίτευξη διαλειτουργικότητας, την ολοκλήρωση των πληροφοριών και τη σύνθεση νέων υπηρεσιών με βάση τις τρέχουσες ανάγκες των τελικών χρηστών. Στόχος της πλατφόρμας αυτής είναι να επιτρέψει την ολοκλήρωση του ηλεκτρονικού ιατρικού φακέλου του ασθενούς που βρίσκεται διασκορπισμένος σε διαφορετικούς ετερογενείς οργανισμούς και ιδιώτες ιατρούς για την άμεση αντιμετώπιση κρίσιμων γεγονότων και τη δημιουργία νέων υπηρεσιών προστιθέμενης αξίας, που βασίζονται στο προφίλ του χρήστη. Δεδομένης της πολυπλοκότητας της ανάπτυξης μιας πλατφόρμας καθολικής συνεργασίας, κυρίως από παρόχους μικρής κλίμακας, προτάθηκε και η λογική υλοποίησης συνεργατικών σχημάτων με τη χρήση τεχνολογιών νέφους, τα οποία θα επιτρέπουν στους παρόχους αυτούς να ενοικιάζουν και να χρησιμοποιούν τα δομικά τους στοιχεία για λειτουργίες μηνυματοδοσίας, ολοκλήρωσης, ασφάλειας, διαχείρισης και ανάπτυξης νέων εφαρμογών. Η παρούσα εργασία, ενισχύει την αλληλεπίδραση και τη συνεργασία των επαγγελματιών του χώρου της υγείας και των φροντιστών. Για το σκοπό αυτό, προτάθηκαν και αναπτύχθηκαν δύο καινοτόμα κατανεμημένα ιεραρχικά δίκτυα, τα οποία οργανώνουν σε ομάδες με κοινά χαρακτηριστικά το ιατρικό και παραϊατρικό ανθρώπινο δυναμικό. Τα ιεραρχικά αυτά δίκτυα ενσωματώνουν μηχανισμούς που επιτρέπουν την αποδοτική συνεργασία των συμμετεχόντων και διασφαλίζουν τις μεταξύ τους αλληλεπιδράσεις, ελαχιστοποιώντας τη διαδικασία αναζήτησης των επιθυμητών πληροφοριών. Επιπλέον, προτάθηκε η ενσωμάτωση ενός καινοτόμου μηχανισμού αναζήτησης πληροφοριών με πολλαπλά κριτήρια που βασίζεται στις αρχές της ελεγχόμενης πλημμύρας μηνυμάτων (flooding). Αυτός ο μηχανισμός χαρακτηρίζεται από έναν μικρό χρόνο απόκρισης και ένα χαμηλό επίφορτo μηνυμάτων που βελτιώνει περαιτέρω την απόδοση και την έγκαιρη παροχή των υπηρεσιών. Τέλος, μελετήθηκε το ανθρωποκεντρικό μοντέλο φροντίδας και προτάθηκαν βελτιώσεις του με στόχο την έγκαιρη πρόληψη των επεισοδίων παρόξυνσης και την ελαχιστοποίηση της διαγνωστικής αβεβαιότητας. Για το σκοπό αυτό, ενσωματώνεται στην αρχιτεκτονική της συνεργατικής πλατφόρμας ένα καινοτόμο πλαίσιο (framework) γενικού σκοπού για την διαχείριση πολλαπλών νοσημάτων. Το προτεινόμενο πλαίσιο χρησιμοποιεί αλγορίθμους εκμάθησης μηχανής (machine learning) για να αξιολογήσει τα δεδομένα που συνέλεξε, εντοπίζει την πιθανότητα εμφάνισης επεισοδίων παρόξυνσης και λαμβάνει αποφάσεις για το επίπεδο σοβαρότητας της κατάστασης της υγείας του ασθενούς, καθώς και τις υπηρεσίες που πρέπει να ενεργοποιηθούν. Κάνοντας χρήση του πλαισίου αυτού, οι πάροχοι υγειονομικής περίθαλψης, οι οργανισμοί και οι φροντιστές μπορούν δυναμικά να αξιολογήσουν και να μοιραστούν πληροφορίες σχετιζόμενες με το προφίλ του ασθενούς. Αυτό έχει ως αποτέλεσμα τη μείωση των ιατρικών λαθών λόγω διαγνωστικής αβεβαιότητας
