doi: 10.3390/app14156556
Theoretical subjects, such as history, usually do not attract the interest of students and as a result educational games and serious games that use augmented reality (AR) are increasingly used as a means of supporting education. It is believed that these games can make the lesson more engaging and contribute to improving student performance. However, relevant research is limited. The present research presents the AR-enhanced serious game “Exploring Ancient Greece” that aims at supporting 10- to 14-year-old students in learning the history of Ancient Greece. It consists of three levels that include: a presentation of archaeological sites with AR that gives students the chance to explore places of historical interest; a trivia game that includes an AR presentation of a monument or piece of art somewhere in the physical surroundings of the students; and an escape room where the player is trapped in an archaeological site and tries to solve riddles to find the exit. To evaluate the game, an empirical study was conducted involving students between the ages of 10 and 14 who answered knowledge questions before and after playing the game, completed a questionnaire including questions based on the System Usability Scale (SUS), as well as questions for evaluating their experience, and answered oral questions. Based on the results of this study, students improved their knowledge of history, evaluated the game positively and stated that they prefer the use of serious games and AR in education.
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handle: 20.500.12327/3158 , 11585/980575
Cultures in Mediterranean climate zones (MCZs) around the world have long been reliant on groundwater and springs as freshwater sources. While their ecology and cultural sustainability are recognized as critically important, inter-relationships between springs and culture in MCZs have received less attention. Here we augmented a global literature review with case studies in MCZ cultural landscapes to examine the diversity and intensity of cultural and socio-economic relationships on spring ecohydrogeology. MCZs are often oriented on western and southern coasts in tectonically active landscapes which control aquifer structure, the prevalence of westerly winds, and aridity, and generally expose associated habitats and cultures to harsh afternoon sunlight. Cultural appreciation and appropriation of springs ranges widely, from their use as subsistence water supplies to their roles in profound traditions such as Greco-Roman nymphalea as well as Asian and Abrahamic spiritual cleansing and baptism. The abandonment of traditional ways of life, such as rural livestock production, for urban ones has shifted impacts on aquifers from local to regional groundwater exploitation. The commoditization of water resources for regional agricultural, industrial (e.g., mining, water bottling, geothermal resorts), and urban uses is placing ever-increasing unsustainable demands on aquifers and spring ecosystems. When the regional economic value of springs approaches or exceeds local cultural values, these irreplaceable aquatic ecosystems are often degraded, over-looked, and lost. Sustainable stewardship of springs and the aquifers that support them is a poorly recognized but central conservation challenge for modern Mediterranean societies as they face impending impacts of global climate change. Solutions to this crisis require education, societal dialogue, and improved policy and implementation.
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Revisiting 3D digital archives can be a challenging process. Within the ARIADNEplus project (2018-2022) the data archive from the excavation of trench 01 of the Paliambela Kolindros archaeological project, compiled between 2000-2008, was re-examined for deposition as a finalized 3D spatial dataset that captures the entire spectrum of the data cycle, from initial fieldwork recording to post-ex stratigraphic analysis and the formulation of an aggregated archaeological narrative. Many questions have risen in the process, including suitable long-term data preservation strategies, data upcycling problems, data standardization issues, semantic mapping procedures, documentation of digital argumentation processes and of course the practical facets of data curation. The presentation will touch upon these issues to highlight lessons learned and open issues in the long-term handling of 3D GIS data, with a view to inform current efforts in consolidating 3D data infrastructures.
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The analysis of the ASTC1 sediment core from the south Aegean Sea region offers critical insights into the complex interplay of geological and climatic factors over the Holocene period. The data reveals fluctuating climatic conditions during the last 8.7 ka as seen through the elemental concentrations obtained by XRF core scanning combined with a qualitative mineral analysis within a robust chronological framework. Short-term fluctuations in both Ti/Al and Zr/Si ratios suggest brief oscillations of increased aridity which partially coincide with the Holocene “Rapid Climate Change” events (RCCs). Among them, the most pronounced in our record are those centered between 8.5–8 ka, 3–2.5 ka (Greek Dark Ages), and 0.6–0.3 ka (Little Ice Age). The arid and humid events identified in the sediment record align with major archaeological periods in Greece, suggesting a potential influence of climatic conditions on the development and decline of civilizations in the region. Moreover, a general arid trend as of 6 ka toward the present was evidenced in our record and aligns with other high-resolution climatic data from the Northern Hemisphere, suggesting climatic teleconnections. Spectral analysis of the ASTC1 record reveals cyclical climate patterns with periodicities of approximately 2500, 1200, and 550 years, which coincide with the Bond and Hallstatt cycles. The phase relation of these cycles in our record, the Greenland ice record, and the North Atlantic Drift ice indices show that colder conditions in the higher latitudes are expressed as events of enhanced aridity in our record and generally in the lower latitudinal regions.
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The Workshop on Advanced 3D Archaeological Documentation and Linked Open Data represents an exciting opportunity to explore the intersection of archaeology, 3D modelling, and data sharing.It is an interdisciplinary event designed to bridge the gap between cutting-edge 3D documentation techniques and open data principles in archaeology.The workshop aims to promote discussions and investigations into the transformative potential of 3D-based documentation tools for archaeological data structuring and web exposition.The key objectives include identifying accessible and easy-to-use tools, promoting interoperability and data comparability, ensuring data export in standard formats, and designing user-oriented interfaces with scientific integrity.
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AbstractAneuploidies, and in particular, trisomies represent the most common genetic aberrations observed in human genetics today. To explore the presence of trisomies in historic and prehistoric populations we screen nearly 10,000 ancient human individuals for the presence of three copies of any of the target autosomes. We find clear genetic evidence for six cases of trisomy 21 (Down syndrome) and one case of trisomy 18 (Edwards syndrome), and all cases are present in infant or perinatal burials. We perform comparative osteological examinations of the skeletal remains and find overlapping skeletal markers, many of which are consistent with these syndromes. Interestingly, three cases of trisomy 21, and the case of trisomy 18 were detected in two contemporaneous sites in early Iron Age Spain (800-400 BCE), potentially suggesting a higher frequency of burials of trisomy carriers in those societies. Notably, the care with which the burials were conducted, and the items found with these individuals indicate that ancient societies likely acknowledged these individuals with trisomy 18 and 21 as members of their communities, from the perspective of burial practice.
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citations | 3 | |
popularity | Top 10% | |
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doi: 10.12681/eadd/55262
handle: 10442/hedi/55262
Η παρούσα διατριβή μελετά τις αναπαραστάσεις της φύσης στα ελληνικά ανθολόγια του δημοτικού σχολείου από το 1975 έως σήμερα και δομείται γύρω από τρεις βασικούς άξονες: μεθοδολογικό, δομικό και θεματικό. α) Όσον αφορά τη μεθοδολογική πορεία που ακολουθήθηκε, αυτή αφορά την επιλογή του θέματος, την οριοθέτηση του σώματος και τη μέθοδο που επιλέχθηκε.Από την άποψη του επιλεγμένου θέματος, τα τρία βασικά θεματικά στοιχεία της διατριβής είναι: 1) οι αναπαραστάσεις της φύσης, οι οποίες συζητούνται καθημερινά λόγω των κινδύνων που αντιμετωπίζει, 2) η σημασία των ελληνικών σχολικών εγχειριδίων του δημοτικού σχολείου, τα οποία αποτελούν καθρέφτη της άσκησης της εξουσίας και η μοναδικότητα, των οποίων επιτρέπει να σημειωθεί η έμφαση που δίνεται στις πολιτισμικές αξίες που επιλέγονται και μεταδίδονται στους μαθητές, και 3) η σημασία του έτους 1975, το οποίο αποτελεί κατασκευασμένο τόπο μνήμης της σημερινής ελληνικής κοινωνίας. Όσον αφορά το σώμα κειμένων, αποτελείται από όλα τα σχολικά ανθολόγια που χρησιμοποιήθηκαν από το 1975 και μέχρι σήμερα, εν έτη 2023. Όσον αφορά την επιλεγείσα μέθοδο, αυτή βασίζεται σε θεματικές κατηγοριοποιήσεις, θεματικές ομαδοποιήσεις, όλων των πληροφοριών που συνδέονται με το κύριο θέμα της διατριβής. Αυτές οι θεματικές κατηγορίες, τοποθετημένες κάθετα σε πίνακες με στήλες, αναλύθηκαν στη συνέχεια οριζόντια, μέσω επτά διαδοχικών επιπέδων θεματικής σύνθεσης, τα οποία επέτρεψαν τον προσδιορισμό της οιονεί τελικής άρθρωσης της διατριβής. Οιονεί-τελική, διότι ήταν ο σχολιασμός των ευρημάτων, συνοδευόμενος από βιβλιογραφική υποστήριξη, που οδήγησε στην κατασκευή της τελικής θεματικής αρχιτεκτονικής της διατριβής, όπως αυτή εμφανίζεται στον τελικό τίτλο της. β) Σε ό,τι αφορά τη δομή της διατριβής, βασικός στόχος ήταν να επικεντρωθεί εξαρχής στη μελέτη του θέματος που επιλέχθηκε στα Ανθολόγια, αποφεύγοντας εξαρχής τη βιβλιογραφική έρευνα και τη δημιουργία μιας θεωρητικής επισκόπησης. Ο λόγος είναι απλός: να αποφευχθεί η δημιουργία ενός θεωρητικού πλαισίου πριν από την ανάλυση του περιεχομένου και την ανάδειξη της θεματικής αρχιτεκτονικής της διατριβής, η οποία θα οδηγούσε αναπόφευκτα στην αναπαραγωγή ήδη υιοθετημένων θέσεων. Έτσι, αφού κατασκευάστηκε η θεματική αρχιτεκτονική, η θεωρητική επισκόπηση οικοδομήθηκε με βάση τις ανακαλύψεις που έγιναν μέσω της ανάλυσης περιεχομένου και περιλαμβάνει τρία μέρη αφιερωμένα σε, 1) την άσκηση της εξουσίας : από την αταξία στην τάξη και από την τάξη στην αταξία, 2) στην κυριαρχία και την επιβολή των αποφάσεων της άρχουσας τάξης, στην εκπαίδευση, στον έλεγχο των σχολικών προγραμμάτων και των σχολικών βιβλίων, στην (ανα)κατασκευή Τόπων Μνήμης και συλλογικών και πολιτισμικών αναπαραστάσεων, καθώς και καταφύγιο για την παιδική λογοτεχνία, 3) στην αέναη αναζήτηση και έκφραση της φύσης από τον άνθρωπο, την τροφή της καθυστερημένης προστασίας της, πηγή παιδείας, αλλά και δυνητικής βίας;Για το λόγο αυτό, το κύριο μέρος της διατριβής αφιερώνεται αποκλειστικά στις ανακαλύψεις αυτές, στην παρουσίασή τους από ποσοτική και ποιοτική άποψη και στον σχολιασμό τους, υποστηριζόμενο και διαφωτιζόμενο από τη βιβλιογραφία. γ) Όσον αφορά τη θεματική αρχιτεκτονική της διατριβής, ανακαλύφθηκε ότι οι συγγραφείς των Σχολικών Ανθολογίων, αδιάλειπτα από το 1975 έως το 2023, επιχειρούν, μέσω της εργαλειοποίησης της προστασίας της φύσης και της βιοποικιλότητας, να δημιουργήσουν μια μαζική οικολογική συνείδηση και να προσφέρουν πνευματική καθοδήγηση στους μαθητές των ελληνικών δημοτικών σχολείων. Οι αναπαραστάσεις της φύσης περιστρέφονται έτσι γύρω από δύο βασικά θέματα: 1) την ομορφιά της φύσης που αφηγείται με τρόπο που απευθύνεται στο συναίσθημα, στην καλλιέργεια της αισθητικής και στην έκφραση μιας επιστημονικής πραγματικότητας και 2) τη φροντίδα που δίνεται στη φύση και που ενσαρκώνεται από τη συνύπαρξη του εφήμερου και του διαχρονικού, από την εγκυκλοπαιδική και επιστημονική γνώση και από την αμοιβαία προστασία μεταξύ της φύσης και των ανθρώπινων προστατών της.
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citations | 0 | |
popularity | Average | |
influence | Average | |
impulse | Average |
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Η διπλωματική μου εργασία επιχειρεί την ψηλάφηση όψεων του δημοσίου διαλόγου, όπως διαφαίνονται στον Τύπο κατά το χρονικό διάστημα προς και κατά την διάρκεια της διεξαγωγής της δίκης των πρωταιτίων του πραξικοπήματος της 21ης Απρίλη 1967. Η έρευνα πραγματοποιείται με άξονες τον όρο και το πλαίσιο της δημόσιας σφαίρας και τον τρόπο που συγκροτείται μια δημόσια συζήτηση πάνω σε ένα δικαστικό – πολιτικό γεγονός. Επίσης, χρησιμοποιήθηκαν εργαλεία από το θεωρητικό - μεθοδολογικό οπλοστάσιο των σπουδών μεταβατικής δικαιοσύνης. Η μελέτη βασίζεται στην εξέταση τριών εντύπων ( Αυγή, Καθημερινή, Νέα) . Τα έντυπα μοιράζονται την αγωνία και την επιθυμία να διεξαχθεί η δίκη το αμεσότερο δυνατό , το κάθε ένα εκκινώντας από διαφορετικά σημεία και εστιάζοντας αλλού. Διαφαίνεται έτσι και ένα διαφορετικό επίπεδο αιτημάτων, κριτικής, ερμηνείας και ανάλυσης των εξελίξεων. Ερωτήματα, τα οποία διαπερνούν την ερευνητική εργασία, αφορούν τον ρόλο του δημοσιογράφου και των μέσων ενημέρωσης στην διαμόρφωση του δημοσίου διαλόγου σε σχέση και με ζητήματα δικαιοσύνης αλλά και στον τρόπο και τα σημεία στα οποία αποτυπώνονται ή αντανακλώνται αντιδράσεις, εκφράσεις, απόψεις διαφορετικών τμημάτων του πληθυσμού και κοινωνικών και πολιτικών κατηγοριών. Σε ένα χρονικό διάστημα ιδιαίτερα πυκνό από διεργασίες και εξελίξεις, οι οποίες διαγράφονται στο ευρύτερο πεδίο του πολιτικού, η εργασία μελετά τον απόηχο και το τμήμα του δημοσίου διαλόγου που συναντάται στα φύλλα των εφημερίδων, καθώς και το ρόλο που φιλοδοξεί να διαδραματίσει ο Τύπος στο επίπεδο της δημόσιας σφαίρας. Τα τρία έντυπα μελετώνται για το διάστημα από τον Απρίλιο του 1975 έως και τον Σεπτέμβρη του ίδιου έτους. Στο πέρας αυτών των μηνών σημειώνονται συνέχειες στην κάλυψη της υπόθεσης στον Τύπο αλλά και αρκετές τομές και κορυφώσεις, ο χαρακτήρας και ο ρόλος των οποίων γίνεται απόπειρα να αξιολογηθεί και να ερμηνευθεί. Μέρος της υπόθεσης εργασίας τίθεται επομένως, μέσω μιας τακτικής και αναλυτικής μελέτης του Τύπου της χρονικής περιόδου και με μια συνολική οπτική ανάγνωσης και κατανόησης, το να μπορέσουν να αποτυπωθούν ορισμένα συμπεράσματα για την συγκρότηση και την στοιχειοθέτηση μιας δημόσιας συζήτησης που εκκινά από ένα σημαντικό δικαστικό γεγονός, αφορά τα πολιτικά και κοινωνικά τεκταινόμενα ως κομμάτι τους και είναι μέρος της υπόθεσης της πολιτειακής και πολιτικής μετάβασης στην ελληνική περίπτωση. My thesis attempts to grasp aspects of the public debate, as they appeared in the press in the period leading up to and during the trial of the first perpetrators of the coup of 21 April 1967. The research is carried out with the term and context of the public sphere and the way a public debate on a judicial-political event is constituted as its axes. Also, tools from the theoretical - methodological arsenal of transitional justice studies were used. The study is based on the examination of three newspapers ( Avgi, Kathimerini, Nea) . The publications share the anxiety and the desire to conduct the trial as directly as possible , each starting from different points and focusing elsewhere. A different level of demands, criticism, interpretation and analysis of developments is thus evident. Questions, which permeate the research paper, concern the role of the journalist and the media in shaping the public debate in relation to and on issues of justice, but also the way and the points in which reactions, expressions, opinions of different segments of the population and social and political categories are reflected or mirrored. In a period of time particularly dense with processes and developments, which are outlined in the broader field of the political, the paper studies the echo and the part of the public debate that is found in the newspapers' pages, as well as the role that the press aspires to play at the level of the public sphere. The three newspapers are studied for the period from April 1975 to September of the same year. In the course of these months there are continuities in the press coverage of the case, but also several intersections and climaxes, the character and role of which an attempt is made to evaluate and interpret. Part of the hypothesis of the thesis is therefore, through a regular and analytical study of the press of the period and with an overall perspective of reading and understanding, to be able to draw some conclusions about the constitution and substantiation of a public debate that starts from an important judicial event, concerns political and social events as part of it and as a part of the case of the political and political transition in the Greek case.
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popularity | Average | |
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Η παρούσα μελέτη εστιάζει στη δημιουργία αρχειακών ψηφιακών εκθέσεων και στον τρόπο με τον οποίο μπορούν να προσελκύσουν τους επισκέπτες. Η αντίληψη ότι οι ψηφιακές αρχειακές εκθέσεις μπορούν να υπηρετήσουν την ιστορία μέσω της χρήσης αρχειακού υλικού και τεχνικών μουσειακής έκθεσης είναι κυρίαρχη στην εργασία. Η παρούσα διπλωματική εργασία στοχεύει στην παρουσίαση των παραμέτρων μιας αρχειακής ψηφιακής έκθεσης, της χρήσης μουσειακών πρακτικών και του τρόπου χρήσης τους σε ένα αρχείο και την αξιολόγηση των πλεονεκτημάτων, των δυνατοτήτων μιας αρχειακής έκθεσης, της διαμόρφωσης καλών πρακτικών σχεδιασμού και τοποθέτησης. Για μια αρχειακή έκθεση, ποιες καλές πρακτικές χρησιμοποιούνται για μια αρχειακή έκθεση, η εφαρμογή αυτών των καλών πρακτικών στο πλαίσιο του αρχείου μελέτης περίπτωσης και τέλος, η παρουσίαση των κοινωνικών, ιστορικών, οικονομικών συνθηκών που αναφέρει η αρχειακή συλλογή σε όλη την έκθεση. The present study focuses on the creation of archival digital exhibitions and how they can engage visitors. The notion that digital archival exhibitions can serve history through the use of archival material and museum exhibition techniques is dominant in the thesis. This thesis aims at presenting the parameters of an archival digital exhibition, the use of museum practices and how they can be used on an archive and an evaluation of the benefits, the potential of an archival exhibition, the formation of good practices for designing and setting for an archival exhibition, what good practices are used for an archival exhibition, the application of theses good practices within the setting of the case study archive and finally, the presentation of the social, historical, economical conditions that the archival collection refers to throughout the exhibition.
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citations | 0 | |
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influence | Average | |
impulse | Average |
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Το μουσείο επιστημών από τις απαρχές του έχει αξιοποιήσει διαφορετικούς τρόπους προκειμένου να διαδώσει την επιστημονική γνώση. Οι τρόποι αυτοί μεταφράζονται σε θεωρίες και μοντέλα επικοινωνίας, που κατά τη διάρκεια των αιώνων εξελίσσονται και έχουν μετατρέψει το μουσείο επιστημών από αυθεντία σε κόμβο κριτικής σκέψης, ενσυναίσθησης και κοινωνικοπολιτικού διαλόγου. Από την άλλη, το πανεπιστημιακό μουσείο ως ειδική περίπτωση μουσείου επιστημών, συναντά σημαντικά εμπόδια στην επικοινωνία του με το ευρύ κοινό. Πολλοί είναι οι παράγοντες που έχουν συντελέσει στη φθίνουσα πορεία του σε επικοινωνιακό επίπεδο, όπως η ανεπαρκής χρηματοδότηση, οι μεγάλες αντιθέσεις και ασυνέπειες στον τρόπο λειτουργίας και διαχείρισης και η αμφισβήτηση της αξίας του. Η παρούσα διπλωματική εργασία εξετάζει πώς μπορεί να αξιοποιηθεί μια πανεπιστημιακή συλλογή, ούτως ώστε να συμβάλλει στη διάδοση της ιστορίας της επιστήμης. Συγκεκριμένα, προτείνει το σχεδιασμό μιας έκθεσης για την ιστορία της ιατρικής επιστήμης στην Ελλάδα, που θα φιλοξενηθεί στο Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών και θα υιοθετεί νέες μουσειολογικές τάσεις όσον αφορά την επικοινωνία της επιστήμης, αλλά και συγκεκριμένες προτάσεις για την ανάδειξη των πανεπιστημιακών ιατρικών συλλογών. Since its beginnings, the science museum has used different methods to disseminate scientific knowledge. These methods translate into theories and models of communication, which have evolved over the centuries, transforming the science museum from an authoritative institution into a hub of critical thinking, empathy, and sociopolitical dialogue. On the other hand, the university museum, as a special case of a science museum, encounters significant obstacles in communicating with the general public. Many factors have contributed to its declining communication effectiveness, such as insufficient funding, major operational contradictions and inconsistencies, and the questioning of its value. This thesis examines how a university collection can be leveraged to contribute to the dissemination of the history of science. Specifically, it proposes the design of an exhibition on the history of medical science in Greece, which will be hosted at the National and Kapodistrian University of Athens, and will adopt new museological trends in terms of science communication, as well as specific proposals for the promotion of university medical collections.
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citations | 0 | |
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doi: 10.3390/app14156556
Theoretical subjects, such as history, usually do not attract the interest of students and as a result educational games and serious games that use augmented reality (AR) are increasingly used as a means of supporting education. It is believed that these games can make the lesson more engaging and contribute to improving student performance. However, relevant research is limited. The present research presents the AR-enhanced serious game “Exploring Ancient Greece” that aims at supporting 10- to 14-year-old students in learning the history of Ancient Greece. It consists of three levels that include: a presentation of archaeological sites with AR that gives students the chance to explore places of historical interest; a trivia game that includes an AR presentation of a monument or piece of art somewhere in the physical surroundings of the students; and an escape room where the player is trapped in an archaeological site and tries to solve riddles to find the exit. To evaluate the game, an empirical study was conducted involving students between the ages of 10 and 14 who answered knowledge questions before and after playing the game, completed a questionnaire including questions based on the System Usability Scale (SUS), as well as questions for evaluating their experience, and answered oral questions. Based on the results of this study, students improved their knowledge of history, evaluated the game positively and stated that they prefer the use of serious games and AR in education.
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handle: 20.500.12327/3158 , 11585/980575
Cultures in Mediterranean climate zones (MCZs) around the world have long been reliant on groundwater and springs as freshwater sources. While their ecology and cultural sustainability are recognized as critically important, inter-relationships between springs and culture in MCZs have received less attention. Here we augmented a global literature review with case studies in MCZ cultural landscapes to examine the diversity and intensity of cultural and socio-economic relationships on spring ecohydrogeology. MCZs are often oriented on western and southern coasts in tectonically active landscapes which control aquifer structure, the prevalence of westerly winds, and aridity, and generally expose associated habitats and cultures to harsh afternoon sunlight. Cultural appreciation and appropriation of springs ranges widely, from their use as subsistence water supplies to their roles in profound traditions such as Greco-Roman nymphalea as well as Asian and Abrahamic spiritual cleansing and baptism. The abandonment of traditional ways of life, such as rural livestock production, for urban ones has shifted impacts on aquifers from local to regional groundwater exploitation. The commoditization of water resources for regional agricultural, industrial (e.g., mining, water bottling, geothermal resorts), and urban uses is placing ever-increasing unsustainable demands on aquifers and spring ecosystems. When the regional economic value of springs approaches or exceeds local cultural values, these irreplaceable aquatic ecosystems are often degraded, over-looked, and lost. Sustainable stewardship of springs and the aquifers that support them is a poorly recognized but central conservation challenge for modern Mediterranean societies as they face impending impacts of global climate change. Solutions to this crisis require education, societal dialogue, and improved policy and implementation.
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citations | 0 | |
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Revisiting 3D digital archives can be a challenging process. Within the ARIADNEplus project (2018-2022) the data archive from the excavation of trench 01 of the Paliambela Kolindros archaeological project, compiled between 2000-2008, was re-examined for deposition as a finalized 3D spatial dataset that captures the entire spectrum of the data cycle, from initial fieldwork recording to post-ex stratigraphic analysis and the formulation of an aggregated archaeological narrative. Many questions have risen in the process, including suitable long-term data preservation strategies, data upcycling problems, data standardization issues, semantic mapping procedures, documentation of digital argumentation processes and of course the practical facets of data curation. The presentation will touch upon these issues to highlight lessons learned and open issues in the long-term handling of 3D GIS data, with a view to inform current efforts in consolidating 3D data infrastructures.
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citations | 0 | |
popularity | Average | |
influence | Average | |
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The analysis of the ASTC1 sediment core from the south Aegean Sea region offers critical insights into the complex interplay of geological and climatic factors over the Holocene period. The data reveals fluctuating climatic conditions during the last 8.7 ka as seen through the elemental concentrations obtained by XRF core scanning combined with a qualitative mineral analysis within a robust chronological framework. Short-term fluctuations in both Ti/Al and Zr/Si ratios suggest brief oscillations of increased aridity which partially coincide with the Holocene “Rapid Climate Change” events (RCCs). Among them, the most pronounced in our record are those centered between 8.5–8 ka, 3–2.5 ka (Greek Dark Ages), and 0.6–0.3 ka (Little Ice Age). The arid and humid events identified in the sediment record align with major archaeological periods in Greece, suggesting a potential influence of climatic conditions on the development and decline of civilizations in the region. Moreover, a general arid trend as of 6 ka toward the present was evidenced in our record and aligns with other high-resolution climatic data from the Northern Hemisphere, suggesting climatic teleconnections. Spectral analysis of the ASTC1 record reveals cyclical climate patterns with periodicities of approximately 2500, 1200, and 550 years, which coincide with the Bond and Hallstatt cycles. The phase relation of these cycles in our record, the Greenland ice record, and the North Atlantic Drift ice indices show that colder conditions in the higher latitudes are expressed as events of enhanced aridity in our record and generally in the lower latitudinal regions.