cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
On the hydrodynamics of the matter reinserted within superstellar clusters
Creators: name: Tenorio-Tagle, Guillermo
name: Wunsch, Richard
name: Silich, Sergiy
name: Palous, Jan
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present semi-analytical and numerical models, accounting for the impact of radiative cooling on the hydrodynamics of the matter reinserted as strong stellar winds and supernovae within the volume occupied by young, massive and compact superstellar clusters. First of all we corroborate the location of the threshold line in the mechanical energy input rate vs the cluster size plane, found by Silich et al. (2004). Such a line separates clusters able to drive a quasi-adiabatic or a strongly radiative wind from clusters in which catastrophic cooling occurs within the star cluster volume. Then we show that the latter, clusters above the threshold line, undergo a bimodal behavior in which the central densest zones cool rapidly and accumulate the injected matter to eventually feed further generations of star formation, while the outer zones are still able to drive a stationary wind. The results are presented into a series of universal dimensionless diagrams from which one can infer: the size of the two zones, the fraction of the deposited mass that goes into each of them and the luminosity of the resultant winds, for clusters of all sizes and energy input rates, regardless the assumed adiabatic terminal speed V_A.
description: 18 pages, 6 figures, accepted for publication in ApJ
Ανάπτυξη μεθοδολογίας αξιολόγησης προγραμμάτων σπουδών εκπαίδευσης μηχανικών στην γνωστική περιοχή της τεχνολογίας των υλικών
Creators: name: Κοτίβας, Κοσμάς Κ.
Publisher: name: Aristotle University of Thessaloniki
Year: 2008
Subjects: Συνεχής αυτοαξιολόγηση
Προηγμένα υλικά
Continuously self-evalution
Advanced materials

description: Ο ΣΚΟΠΟΣ ΤΗΣ ΔΙΔΑΚΤΟΡΙΚΗΣ ΔΙΑΤΡΙΒΗΣ ΕΙΝΑΙ Η ΑΝΑΠΤΥΞΗ ΜΙΑΣ ΜΕΘΟΔΟΛΟΓΙΑΣ ΑΥΤΟΑΞΙΟΛΟΓΗΣΗΣ Η ΕΦΑΡΜΟΓΗ ΤΗΣ ΟΠΟΙΑΣ ΝΑ ΚΑΘΙΣΤΑ ΔΥΝΑΤΗ ΤΗ ΣΥΝΕΧΗ ΠΑΡΑΚΟΛΟΥΘΗΣΗ ΚΑΙ ΑΞΙΟΛΟΓΗΣΗ ΤΟΥ ΠΑΡΕΧΟΜΕΝΟΥ ΕΚΠΑΙΔΕΥΤΙΚΟΥ ΕΡΓΟΥ ΣΤΗΝ ΕΛΛΑΔΑ, ΣΤΟ ΕΠΙΣΤΗΜΟΝΙΚΟ ΠΕΔΙΟ ΤΗΣ ΤΕΧΝΟΛΟΓΙΑΣ ΤΩΝ ΠΡΟΗΓΜΕΝΩΝ ΥΛΙΚΩΝ, ΣΕ ΜΕΤΑΠΤΥΧΙΑΚΟ ΕΠΙΠΕΔΟ. Η ΜΕΘΟΔΟΛΟΓΙΑ ΑΥΤΟΑΞΙΟΛΟΓΗΣΗΣ ΒΑΣΙΖΕΤΑΙ ΣΤΗΝ ΠΑΡΑΔΟΧΗ ΟΤΙ ΟΛΟΙ ΟΙ ΕΜΠΛΕΚΟΜΕΝΟΙ ΣΤΗ ΛΕΙΤΟΥΡΓΙΑ ΤΟΥ ΜΕΤΑΠΤΥΧΙΑΚΟΥ ΠΡΟΓΡΑΜΜΑΤΟΣ (ΦΟΙΤΗΤΕΣ, ΔΙΔΑΣΚΟΝΤΕΣ, ΔΙΟΙΚΗΣΗ, ΒΙΟΜΗΧΑΝΙΑ) ΣΥΜΜΕΤΕΧΟΥΝ ΣΤΗ ΔΙΑΔΙΚΑΣΙΑ ΑΞΙΟΛΟΓΗΣΗΣ ΚΑΙ ΜΕΣΩ ΤΩΝ ΕΝΕΡΓΕΙΩΝ ΚΑΙ ΠΡΟΤΑΣΕΩΝ ΤΟΥΣ ΣΥΝΤΕΛΟΥΝ ΣΤΗΝ ΠΟΙΟΤΙΚΗ ΒΕΛΤΙΩΣΗ ΤΟΥ ΠΡΟΓΡΑΜΜΑΤΟΣ. ΤΑ ΔΕΔΟΜΕΝΑ ΠΟΥ ΕΠΕΞΕΡΓΑΖΟΝΤΑΙ ΒΑΣΙΖΟΝΤΑΙ ΣΕ ΠΛΗΡΟΦΟΡΙΕΣ ΠΟΥ ΠΡΟΕΚΥΨΑΝ ΜΕΣΩ ΕΡΩΤΗΜΑΤΟΛΟΓΙΩΝ, ΣΥΝΕΝΤΕΥΞΕΩΝ ΚΑΙ ΤΩΝ ΕΞΕΤΑΣΕΩΝ ΣΤΑ ΜΑΘΗΜΑΤΑ ΤΟΥ ΠΡΟΓΡΑΜΜΑΤΟΣ. Η ΕΡΕΥΝΑ ΤΗΣ ΕΠΑΓΓΕΛΜΑΤΙΚΗΣ ΕΞΕΛΙΞΗΣ ΤΩΝ ΑΠΟΦΟΙΤΩΝ, Η ΣΥΜΒΑΤΟΤΗΤΑ ΤΗΣ ΚΑΤΕΧΟΜΕΝΗΣ ΘΕΣΗΣ ΕΡΓΑΣΙΑΣ ΤΩΝ ΜΕ ΤΟ ΓΝΩΣΤΙΚΟ ΑΝΤΙΚΕΙΜΕΝΟ ΤΟΥ ΠΡΟΓΡΑΜΜΑΤΟΣ ΚΑΘΩΣ ΚΑΙ ΟΙ ΕΚΤΙΜΗΣΕΙΣ ΟΛΩΝ ΤΩΝ ΑΠΟΦΟΙΤΩΝ, ΤΩΝ ΔΙΔΑΣΚΟΝΤΩΝ, ΚΑΙ ΤΩΝ ΕΚΠΡΟΣΩΠΩΝ ΤΗΣ ΒΙΟΜΗΧΑΝΙΑΣ ΚΑΤΕΔΕΙΞΑΝ ΤΑ ΔΥΝΑΤΑ ΣΗΜΕΙΑ, ΤΙΣ ΑΔΥΝΑΜΙΕΣ, ΤΙΣ ΕΥΚΑΙΡΙΕΣ ΚΑΙ ΤΙΣ ΑΠΕΙΛΕΣ ΤΟΥ ΠΡΟΓΡΑΜΜΑΤΟΣ. Η ΜΕΘΟΔΟΛΟΓΙΑ ΑΥΤΟΑΞΙΟΛΟΓΗΣΗΣ ΠΟΥ ΑΝΑΠΤΥΧΘΗΚΕ ΜΠΟΡΕΙ ΕΥΚΟΛΑ ΝΑ ΕΦΑΡΜΟΣΤΕΙ ΚΑΙ ΣΕ ΑΛΛΑ ΠΡΟΓΡΑΜΜΑΤΑ ΠΡΟΠΤΥΧΙΑΚΑ Ή ΜΕΤΑΠΤΥΧΙΑΚΑ, ΛΑΜΒΑΝΟΝΤΑΣ ΥΠΟΨΗ ΤΙΣ ΙΔΙΑΙΤΕΡΟΤΗΤΕΣ ΤΟΥ ΚΑΘΕ ΠΕΡΙΒΑΛΛΟΝΤΟΣ. Η ΠΡΩΤΟΤΥΠΙΑ ΤΗΣ ΕΡΓΑΣΙΑΣ ΣΥΝΙΣΤΑΤΑΙ ΣΤΗΝ ΚΙΝΗΤΟΠΟΙΗΣΗ ΟΛΩΝ ΤΩΝ ΕΜΠΛΕΚΟΜΕΝΩΝ ΣΤΗΝ ΕΚΠΑΙΔΕΥΤΙΚΗ ΔΙΑΔΙΚΑΣΙΑ ΠΟΥ ΑΝΑΒΑΘΜΙΖΕΙ ΠΟΙΟΤΙΚΑ ΤΟ ΠΡΟΓΡΑΜΜΑ
description: THE PURPOSE OF THIS DOCTORATE IS TO DEVELOP A SELF-EVALUATION METHODOLOGY THROUGH WHICH TO CONTINUOUSLY MONITOR AND EVALUATE THE QUALITY OF THE EDUCATIONAL SERVICES OFFERED IN GREECE, IN THE FIELD OF ADVANCED MATERIALS AT POSTGRADUATE LEVEL. THE METHODOLOGY FOR THE EVALUATION PROCESS WAS BASED ON THE ASSUMPTION THAT EVERY PARTICIPANT (STUDENTS, LECTURERS, ADMINISTRATIVE STAFF) OF THE POSTGRADUATE COURSE AS WELL AS REPRESENTATIVES OF INDUSTRY SHOULD PARTICIPATE IN THE EVALUATION AND SHOULD BE COMMITTED TO CONTRIBUTE WITH THEIR SUGGESTIONS AND ACTIONS TO IMPROVE THE COURSE QUALITY. THE DATA USED WAS BASED ON INFORMATION SUPPLIED THROUGH QUESTIONNAIRES, INTERVIEWS, DISCUSSIONS AND TESTS. BASED ON A SURVEY OF EX-STUDENTS DESTINATIONS, JOB PLACEMENT AND DEGREE OF JOB RELEVANCE WITH THE CONTENT OF THE COURSE, THE AUTHOR HAVE REACHED CONCLUSIONS CONCERNING THE STRONG AND WEAK POINTS OF THE COURSE AND HOW IT RESPONDED TO MARKET NEEDS. THE DEVELOPED EVALUATION METHODOLOGY CAN BE EASILY APPLIED TO OTHER UNDERGRADUATE OR POSTGRADUATE ENGINEERING COURSES TAKING INTO CONSIDERATION THE SPECIFIC COURSE CONTENT AND LOCALITY CONDITIONS. ITS VALUE CONSISTS IN THE INVOLVEMENT OF ALL CONCERNED PARTIES (STUDENTS, LECTURERS, STAFF AND INDUSTRY) IN THE EVALUATION PROCESS AND ITS EFFICIENCY IN PINPOINTING THE STRENGTHS, WEAKNESSES, OPPORTUNITIES AND THREATS OF THE EDUCATIONAL PROCESS
Spontaneous valley polarization in 2D organometallic lattice
Creators: name: Peng, Rui
name: He, Zhonglin
name: Wu, Qian
name: Dai, Ying
name: Huang, Baibiao
name: Ma, Yandong
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: 2D ferrovalley materials that exhibit spontaneous valley polarization are both fundamentally intriguing and practically appealing to be used in valleytronic devices. Usually, the research on 2D ferrovalley materials is mainly focused on inorganic systems, severely suffering from in-plane magnetization. Here, we alternatively show by kp model analysis and high-throughput first-principles calculations that ideal spontaneous valley polarization is present in 2D organometallic lattice. We explore the design principle for organic 2D ferrovalley materials composed of (quasi-)planer molecules and transition-metal atoms in hexagonal lattice, and identify twelve promising candidates. These systems have a ferromagnetic or antiferromagnetic semiconducting state, and importantly they exhibit robust out-of-plane magnetization. The interplay between spin and valley, together with strong spin-orbit coupling of transition-metal atoms, guarantee the spontaneous valley polarization in these systems, facilitating the anomalous valley Hall effect. Our findings significantly broaden the scientific and technological impact of ferrovalley physics.
Accurate optical fiber current transducer for high-voltage direct current (HVDC) transmission
Creators: name: Liu, Haifeng
name: Guo, Hongjie
name: Tan, Manqing
name: Li, Qin
name: Meng, Xiangqiang
name: Yang, Xu
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified

description: Accurate optical fiber current transducer based on the Faraday magneto-optical effect is described for high voltage direct current (HVDC) transmission. The transducer may be used to measure DC and high-order harmonic currents in a ± 800 kV DC transmission field. The performance characteristics of sensitivity, non-linearity, temperature stability, and harmonic accuracy of the prototype were investigated. The results show that the scale factor error in the −40 °C to 70 °C range is below ±0.2%. The presented optical fiber current transducer has potential applications for HVDC detection fields, such as for a polarity bus and a converter valve bridge arm.
Η αμυντική συμπεριφορά της κυπριακής μέλισσας Apis mellifera cypria απέναντι στη σφήκα Vespa orientalis
Creators: name: Παπαχριστοφόρου, Αλέξανδρος Χρ.
Publisher: name: Aristotle University of Thessaloniki
Year: 2008
Subjects: Φυσικές επιθέσεις σφηκών
Τεχνικές επιθέσεις σφηκών
Natural attacks against hornets
Simulated attacks against hornets

description: Η μέλισσα της Κύπρου Apis mellifera cypria παρουσιάζει ιδιαίτερα χαρακτηριστικά κατά την άμυνά της απέναντι στον κύριο εχθρό της, τη σφήκα Vespa orientalis. Στην παραούσα εργασία μελετήθηκε η συμπεριφορά της κυπριακής μέλισσας κατά τη διάρκεια φυσικών και τεχνητών επιθέσεων σφηκών. Πραγματοποιήθηκαν γενετικοί έλεγχοι και καταγράφηκε η ετήσια ανάπτυξη των μελισσών. Αναλύθηκε ο τρόπος θανάτωσης των επιτιθέμενων σφηκών από τις μέλισσες και ο ήχος που παράγουν οι αμυνόμενες εργάτριες. Τα αποτελέσματα κατέδειξαν πως η ιδιαίτερη αμυντική συμπεριφορά της κυπριακής μέλισσας διαφέρει σε σημαντικό βαθμό σε σχέση με άλλες φυλές μελισσών
description: In the present works, several characteristics of the Cyprian honeybee were examined, with particular emphasis on its defensive behabiour during natural and simulated attacks by its main enemy, the oriental hornet. Genetic analyses were performed and the growth of colonies during the year was monitored. The defensive behaviour of individual colonies against hornets, the way that honeybees kill invading hornets and the sound produced by defending workers, were investigated in details. Collectively, the above results showed the special defensive behaviour of the Cyprus honeybee, a behaviour which is quite different from other subspecies
LANGUAGE PROFICIENCY AND READINESS AS CORRELATES OF ADMINISTRATIVE WORKERS' EFFECTIVENESS
Creators: name: AMINULLAHI AHMAD RUFAI
name: AJAYI OYEDOKUN SAMUEL
name: ADU EBENEZER TAIWO*
Publisher: name: Zenodo
Year: 2024
Subjects: Language Proficiency, Readiness, Administrative Workers, Effectiveness, Communication.

description: Abstract

The study examined language proficiency and readiness as correlates of administrative workers' effectiveness. It adopted the ex-post facto and descriptive research design of the survey type. The population comprised of all executive and administrative staff of Bamidele Olumilua University of Education, Science and Technology, Ikere Ekiti. The research sample was selected using a combination of purposive and random sampling techniques. The researchers made used of a structured questionnaire titled: Readiness, language proficiency as correlates of Administrative workers’ effectiveness (RLPAWEQ). The validity of the instrument's face, content, and constructs were examined. The instrument's test-retest reliability was guaranteed. A statistical analysis using Pearson Product Moment Correlation was performed on the scores from the two sets of replies at the 0.05 level of significance. The reliability coefficient of 0.85 obtained from the instrument was deemed sufficient for the investigation. Four hypotheses were generated. Data were analysed using both descriptive (frequency count, percentage and pie chart) and inferential statistics (Pearson Moment Correlation Coefficient and Correlation Matrix) to test the hypotheses at 0.05 level of significant. and tested using. Among the conclusions is the fact that there was a noteworthy correlation between workers' linguistic competency and administrative proficiency. Significant correlations have been found between the language competency of relationship workers and the advancement of administrative workers' careers, as well as between relationship workers' language proficiency and their assigned duty posts. The researchers came to the conclusion that there was a connection between language competency and the productivity of administrative personnel based on the study's findings and discussion. Furthermore, a correlation was seen between every characteristic related to language competency and the preparedness of workers. The researchers suggest that companies think about offering administrative staff members language competence training programs, among other things, in light of the study's findings. To increase communication efficacy, these programs might concentrate on enhancing language proficiency in speaking, writing, and understanding.
Additional file 5 of Comparison of sequencing data processing pipelines and application to underrepresented African human populations
Creators: name: Breton, Gwenna
name: Johansson, Anna C. V.
name: Sjödin, Per
name: Schlebusch, Carina M.
name: Jakobsson, Mattias
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 5. Most variants are common to “BP2019”, “BP2015” and “3mask” after applying an accessibility mask. Venn diagrams of the variants obtained by three processing pipelines, when restricting to the sites in the 1000 Genomes accessibility mask (Fig. 2 shows the results restricting the sites)
Dark Energy-Dark Matter Interaction and putative violation of the Equivalence Principle from the Abell Cluster A586
Creators: name: Bertolami, O.
name: Pedro, F. Gil
name: Delliou, M. Le
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show that the Abell Cluster A586 exhibits evidence of the interaction between dark matter and dark energy and argue that this interaction implies a violation of the Equivalence Principle. This violation is found in the context of two different models of dark energy-dark matter interaction. We also argue, based on the spherical symmetry of the Abell Cluster A586 that skewness is not the most general quantity to test the Equivalence Principle.
description: Version to appear at Physics Letters B. 5 pages, 1 Figure
Μελέτη των δίπτερων εντόμων του γένους Culicoides στην Ελλάδα
Creators: name: Πατακάκης, Μιχαήλ Ι.
Publisher: name: Aristotle University of Thessaloniki
Year: 2008
Subjects: Είδη Culicoides
Παραγωγικά & οικόσιτα ζώα
Καταρροϊκός πυρετός προβάτου
Culicoides spp.
Domestic animals
Bluetongue

description: Σκοπός της διδακτορικής διατριβής ήταν η μελέτη των ειδών του γένους Culicoides σε όλη την Ελλάδα, έτσι ώστε να αποκτηθεί η γνώση της κατανομής και της εποχιακής εμφάνισης των εντόμων, προκειμένου να ελεχθεί ο καταρροϊκός πυρετός των προβάτων, προς όφελος της κτηνοτροφίας και της οικονομίας της χώρας μας. Στο πρώτο μέρος γίνεται μία σύντομη βιβλιογραφική ανασκόπηση της ταξινόμησης και του ιστορικού των ειδών Culicoides, της μορφολογίας, της βιολογίας και επίδρασης αυτών στην υγεία των ζώων και του ανθρώπου. Στο δεύτερο μέρος, που αποτελεί τη δική μας έρευνα περιγράφονται τα υλικά και μέθοδοι για την συλλογή, επεξεργασία και ταυτοποίηση των ειδών Culicoides. Η έρευνα έγινε από το 2000-2007. Ταυτοποιήθηκαν 35 είδη Culicoides. Επτά(7) είδη βρέθηκαν πρώτη φορά στην Ελλάδα και πέντε(5) είδη βρέθηκαν για πρώτη φορά στην Ηπειρωτική Ελλάδα. Το C. obsoletus ήταν το είδος με την μεγαλύτερη εξάπλωση στον ελλαδικό χώρο. Το C. imicola κύριος μεταδότης του ιού του καταρροϊκού πυρετού δεν βρέθηκε στην Δυτική Ελλάδα και στην Κρήτη
description: The study of Culicoides midges(Diptera : Ceratopogonidae) by scientists around the world is a continuing procedure/task because of their involvement in the transmission of viral, protozoal and parasitic infections. The aim of this thesis was the study of Culicoides species in Greece in order to obtain knowledge about the species distribution, seasonal variation, feeding preference and other parameters useful for their control by the Veterinary Services for the benefit of the farmers and our rural economy. Part of this work was under the EU project no. QLK2-2000200611. During this work 35 Culicoides, species were identified. C. obsoletus was widespread in country. C. imicola the primary vector of BIV and AHSV in the Mediterannean was not found in Crete and in the western Greece. C. pulicaris complex is also widespread in the country
Δυαδικές συναρτήσεις Green πολυκεντρικών σφαιρικών σωμάτων: μικροκυματικές, βιο-ιατρικές & οπτικές εφαρμογές
Creators: name: Μονέδα, Αγγελική Π.
Publisher: name: Aristotle University of Thessaloniki
Year: 2008
Subjects: Σκέδαση η/μ κυμάτων
Φαινόμενο Raman
Scattering of em waves
Raman effect, surface enhanced

description: Στην παρούσα διατριβή παρουσιάζεται ο αναλυτικός υπολογισμός της Δυαδικής Συνάρτησης Green(DGF) πολυκεντρικών σφαιρικών σκεδαστών, δηλ. σωμάτων που ορίζονται από μη τεμνόμενες σφαιρικές επιφάνειες. Στο κύριο μέρος της ανάλυσης υπολογίζονται για πρώτη φορά οι DGF τριών πολυκεντρικών σφαιρικών σωμάτων α)του συσσωματώματος διηλεκτρικών σφαιρών, β)της σφαίρας με έκκεντρες σφαιρικές ανομοιογένειες και γ)της έκκεντρα στρωματοποιημένης σφαίρας. Οι παραπάνω αναλυτικές λύσεις χρησιμοποιούνται ώστε να διαμορφωθεί ένας αλγόριθμος που επιτρέπει τον υπολογισμό της DGF οποιυδήποτε πολυκεντρικού σφαιρικού σώματος. Οι λύσεις (α)-(γ) ελέγχθηκαν επιτυχώς τόσο αναλυτικά όσο και αριθμητικά. Η διατριβή ολοκληρώνεται με τέσσερεις αριθμητικές εφαρμογές της ανάλυσης. Στην πρώτη μελετάται η επίδραση μιας γραμμικής διπόλου. Η δεύτερη αποσκοπεί στον περιορισμό του βάρους της σφαίρας που εστιάζει την προσπίπτουσα ακτινοβολία, θεωρώντας μια σφαιρική κοιλότητα στο εσωτεικό της. Στην τρίτη εφαρμογή ελέγχεται η επίδραση ενός ενεργού εμφυτεύματος σε ένα μοντέλο του ανθρώπινου κεφαλιού. Τέλος, στην τέταρτη αριθμητική εφαρμογή μελετάται το φαινόμενο της επιφανειακά ενισχυμένης σκέδασης Raman(surface enhanced Raman scattering) σε έκεντρα στρωματοποιημένα νανο-σφαιρίδια που αποτελούνται από χρυσό και γυαλί
description: This thesis presents analytical steps leading to the Dyadic Green's Function of non-spherical scatterers, i.e. bodies defined by several, non-concentric, spherical boundaries. The main part of the analysis yields the DGF of three, non-spherical bodies: a)the cluster of spheres, b)the sphere with eccentric spherical inclusions and c)the eccentrically stratified sphere; all three DGFs appear for the first time. These three analytical solution are used to build an algorithm which allows for the formulation and determination of the DGF of any kind of non-spherical bodies. The solutions given for case a-c have been successfully checked analytically and numerically. Four numerical applications of the analysis are included oin the thesis. The first application is a study of the effect of a line cluster of rexolite spheres on the EM radiation emitted by a point source. The second application is aimed at reducing the weight of the focusing sphere by considering and eccentric spherical cavity inside a rexolite sphere. The third application concerns a implanted point source within a human head model. The last numerical calculations are aimed at the conditions favoring the appearance of surface-enhanced Raman scattering(SERS)
ผลของโปรแกรมการมีส่วนร่วมของผู้อยู่ร่วมกับเชื้อเอชไอวีในการลดการตีตราตนเองในโรงพยาบาลอากาศอำนวย จังหวัดสกลนคร
Creators: name: จิรัฐติกาล  สุตวณิชย์
Publisher: name: กองโรคเอดส์และโรคติดต่อทางเพศสัมพันธ์ กรมควบคุมโรค
Year: 2023
Subjects: โปรแกรมลดการตีตราตนเอง
การตีตราและเลือกปฏิบัติ
ผู้อยู่ร่วมกับเชื้อเอชไอวี

description: วารสารโรคเอดส์, 35, 3, 127-139
Report on the results of the comprehensive diagnosis on Open Access and Open Data in Angola and video-summary
Creators: name: United Nations Educational, Scientific and Cultural Organization
name: Ministério Do Ensino Superior, Ciência
name: Redalyc-Universidad Autónoma Del Estado De México
name: AmeliCA
name: Universidade Óscar Ribas
Publisher: name: Zenodo
Year: 2022
Subjects: Open Access
Angola
Africa
Open Data
Comprehensive diagnosis on Open Access
Video-summary

description: Work derived from the collaborative project among Redalyc UAEM, AmeliCA, MESCTI and U. Óscar Ribas funded by UNESCO for the development of an Open Access strategy in Angola. Vol. 15 of 38
description: {"references": ["REDALYC Sistema de Informaci\u00f3n Cient\u00edfica. (March 14, 2022). Youtube. Retrieved from https://youtu.be/oyaE9juCz6s"]}
On the Evasion of Executive Term Limit
Creators: name: Ginsburg, Tom
name: Melton, James
name: Elkins, Zachary
Publisher: name: The University of Texas at Austin
Year: 2011
Subjects: Executive term
term limit

description: Executive term limits are precommitments through which the polity restricts its ability to retain a popular executive down the road. But in recent years, many presidents around the world have chosen to remain in office even after their initial maximum term in office has expired. They have largely done so by amending the constitution, sometimes by replacing it entirely. The practice of revising higher law for the sake of a particular incumbent raises intriguing issues that touch ultimately on the normative justification for term limits in the first place. This Article reviews the normative debate over term limits and identifies the key claims of proponents and opponents. It introduces the idea of characterizing term limits as a type of default rule executives may overcome if sufficient political support is apparent. It then turns to historical evidence to assess the probability of attempts, both successful and unsuccessful, to evade term limits. It finds that, notwithstanding some high-profile cases, executives observe term limits with remarkable frequency in consolidated democracies. The final Part considers alternative institutional designs that may accomplish some of the goals of term limits, but finds that none are likely to provide a perfect substitute. Term limits have the advantage of clarity, which very likely increases their enforceability, and they should be considered an effective part of the arsenal of democratic institutions.
Additional file 6 of Comparison of sequencing data processing pipelines and application to underrepresented African human populations
Creators: name: Breton, Gwenna
name: Johansson, Anna C. V.
name: Sjödin, Per
name: Schlebusch, Carina M.
name: Jakobsson, Mattias
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 6. Differences in number of indels per individual are explained by dataset rather than ancestry. Boxplots of the difference between the number of indels (simple and complex) per individual in “3mask” and “BP2019”, in percentage of “BP2019” (a positive percentage indicates more variants in “3mask”). A-Individuals are grouped by ancestry. B-Individuals are grouped by dataset
ผลการพัฒนาระบบการป้องกันควบคุมโรคไวรัสตับอักเสบซีในเรือนจำจังหวัดกาฬสินธุ์
Creators: name: พิสมัย สุระกาญจน์
Publisher: name: กองโรคเอดส์และโรคติดต่อทางเพศสัมพันธ์ กรมควบคุมโรค
Year: 2023
Subjects: ผู้ต้องขัง
ไวรัสตับอักเสบซี
การป้องกันควบคุมโรค

description: วารสารโรคเอดส์, 35, 3, 140-150
DIGITAL PROCUREMENT TRANSFORMATION IN EAC: OPPORTUNITIES AND CHALLENGES
Creators: name: Mbonigaba Celestin* & S. Sujatha**
Publisher: name: Zenodo
Year: 2024

description: The study titled "Digital Procurement Transformation in the East African Community (EAC): Opportunities and Challenges" examines the potential and hurdles of digitizing procurement practices within the EAC. Digital procurement offers significant benefits, such as improved efficiency, transparency, and cost savings, but adoption across the region is inconsistent. Countries like Kenya and Rwanda have made notable progress with fully implemented digital systems, while others, such as Burundi and South Sudan, struggle due to political instability, poor infrastructure, and limited capacity building. The research identifies key opportunities, including economic benefits, efficiency gains, and increased transparency, driven by advanced technologies like Artificial Intelligence (AI), Blockchain, and the Internet of Things (IoT).

However, several challenges hinder progress, including inadequate digital infrastructure, fragmented regulatory frameworks, and a significant skills gap among procurement professionals. To overcome these barriers, the study proposes a strategic roadmap focusing on harmonizing digital standards across EAC member states, investing in digital infrastructure, and building the capacity of procurement professionals.

The roadmap also advocates for phased implementation, starting with pilot projects, and emphasizes the importance of public-private partnerships and regional collaboration. While challenges persist, the opportunities presented by digital procurement are substantial. Addressing the infrastructural, regulatory, and skills-related issues will enable the EAC to fully leverage digital procurement's potential, driving regional integration, economic growth, and enhanced governance across member states.
A New approach to generating and selecting test sequences for conformance testing
Creators: name: Zhou, Limin
Publisher: name: University of British Columbia
Year: 2008

description: To enhance the probability of interworking among protocol implementations, the implementations must be tested for conformance to the standards they purport to support. This thesis deals with several important aspects in protocol conformance testing based on ESTELLE.Y, a variant of the formal description technique ESTELLE. A new method for generating test sequences is presented. It combines both control flow analysis and data flow analysis. The test case generation is done automatically by an extensive and systematic analysis of the formal protocol specification. The resulting test sequences have at least the same fault detection power as that of the characterizing sequences used for control flow analysis, and also the fault detection capability as that of the all definition and use strategy for data flow analysis. The constraint relations of input and output parameters are also generated automatically. The input constraints are used to guide the data selection process while the output constraints are used to check the validity of the output behaviours. The Abstract Test Case Relation Model provides an abstract model to establish the ordering relations among the test cases in a test suite. This relation is used to dynamically select test cases for execution during testing and helps to reduce the number of test cases executed by eliminating those that are guaranteed to fail. This will result in efficient testing. Methods for the combined data flow and control flow analysis and for generating the ATCRM from protocol specifications have been implemented. We also proposed and implemented a constraint generation method based on normal form specification. The techniques and prototype implementations presented in this thesis form an important part of the UBC Protocol Testing Environment which aims to enhance the efficiency and effectiveness of the conformance testing process.
Elicitation of verb paradigms
Creators: name: Parker, Verdena
name: Lee-Wynant, Tyler
name: Spence, Justin
name: Yu, Xuying Yuki
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2020
Subjects: subject: hup

description: Audio file VP-090319-04: Elicitation of verbs: descriptive neuters, transitionals, and customary aspect forms.
Additional file 7 of Comparison of sequencing data processing pipelines and application to underrepresented African human populations
Creators: name: Breton, Gwenna
name: Johansson, Anna C. V.
name: Sjödin, Per
name: Schlebusch, Carina M.
name: Jakobsson, Mattias
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 7. Box plots of the percentage of known biallelic SNPs by individual, according to ancestry or dataset. Percentage of known biallelic SNPs (relative to dbSNP v.151) in “BP2019” (before VQSR). A-Individuals are grouped by ancestry. B-Individuals are grouped by dataset
ความชุกและปัจจัยที่เกี่ยวข้องกับการติดเชื้อซิฟิลิสแต่กำเนิด ในประเทศไทย ระหว่างปี พ.ศ. 2559-2564
Creators: name: จุฑาวรรณ นิลเพ็ชร
Publisher: name: กองโรคเอดส์และโรคติดต่อทางเพศสัมพันธ์ กรมควบคุมโรค
Year: 2023
Subjects: โรคซิฟิลิสแต่กำเนิด
การศึกษาเชิงพื้นที่
ตัวแบบนัยเชิงเส้นทั่วไป

description: วารสารโรคเอดส์, 35, 3, 151-159
Additional file 8 of Comparison of sequencing data processing pipelines and application to underrepresented African human populations
Creators: name: Breton, Gwenna
name: Johansson, Anna C. V.
name: Sjödin, Per
name: Schlebusch, Carina M.
name: Jakobsson, Mattias
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 8. Box plots of the percentage of known simple indels by individual, according to ancestry or dataset. Percentage of known simple indels (relative to dbSNP v.151) in “BP2019” (before VQSR). A-Individuals are grouped by ancestry. B-Individuals are grouped by dataset
In-N-Out Generative Learning for Dense Unsupervised Video Segmentation
Creators: name: Pan, Xiao
name: Li, Peike
name: Yang, Zongxin
name: Zhou, Huiling
name: Zhou, Chang
name: Yang, Hongxia
name: Zhou, Jingren
name: Yang, Yi
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: In this paper, we focus on unsupervised learning for Video Object Segmentation (VOS) which learns visual correspondence (i.e., the similarity between pixel-level features) from unlabeled videos. Previous methods are mainly based on the contrastive learning paradigm, which optimize either in image level or pixel level. Image-level optimization (e.g., the spatially pooled feature of ResNet) learns robust high-level semantics but is sub-optimal since the pixel-level features are optimized implicitly. By contrast, pixel-level optimization is more explicit, however, it is sensitive to the visual quality of training data and is not robust to object deformation. To complementarily perform these two levels of optimization in a unified framework, we propose the In-aNd-Out (INO) generative learning from a purely generative perspective with the help of naturally designed class tokens and patch tokens in Vision Transformer (ViT). Specifically, for image-level optimization, we force the out-view imagination from local to global views on class tokens, which helps capture high-level semantics, and we name it as out-generative learning. As to pixel-level optimization, we perform in-view masked image modeling on patch tokens, which recovers the corrupted parts of an image via inferring its fine-grained structure, and we term it as in-generative learning. To discover the temporal information better, we additionally force the inter-frame consistency from both feature and affinity matrix levels. Extensive experiments on DAVIS-2017 val and YouTube-VOS 2018 val show that our INO outperforms previous state-of-the-art methods by significant margins. Code is available: https://github.com/pansanity666/INO_VOS
description: Accepted by ACM MM 2022
Effects of point defects on oxidation of 3C-SiC
Creators: name: Xi, Jianqi
name: Liu, Cheng
name: Szlufarska, Izabela
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The influence of implantation-induced point defects (PDs) on SiC oxidation is investigated via molecular dynamics simulations. PDs generally increase the oxidation rate of crystalline grains. Particularly, accelerations caused by Si antisites and vacancies are comparable, and followed by Si interstitials, which are higher than those by C antisites and C interstitials. However, in the grain boundary (GB) region, defect contribution to oxidation is more complex, with C antisites decelerating oxidation. The underlying reason is the formation of a C-rich region along the oxygen diffusion pathway that blocks the access of O to Si and thus reduces the oxidation rate, as compared to the oxidation along a GB without defects.
Re-transcription of texts told by Stella Jarnaghan
Creators: name: Parker, Verdena
name: Lee-Wynant, Tyler
name: Spence, Justin
name: Yu, Xuying Yuki
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2020
Subjects: subject: hup

description: Audio files VP-090319-03a/c/e: Re-transcription and translation of texts told by Stella Jarnaghan to Mary Woodward in 1953, archived at the Survey of California and Other Indian Languages (Woodward.002.001), pp. 24-26 (Text 10).
A simple model of energy expenditure in human locomotion
Creators: name: Romeo, F.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences

description: A simple harmonic oscillator model is proposed to describe the mechanical power involved in human locomotion. In this framework, by taking into account the anthropometric parameters of a standard individual, we are able to calculate the speed-power curves in human walking. The proposed model accounts for the well known Margaria's law in which the cost ofthe human running (independent from the speed) is fixed to 1 Kcal/(Kg Km). The model includes the effects of a gentle slope (either positive or negative) and the effect due to the mechanical response of the walking surface. The model results obtained in the presence of a slope are in qualitative agreement with the experimental data obtained by A. Leonardi et al.
description: 13 pages, 5 figures, submitted to EPJ B
Use of dried blood spot specimens for in-house HIV drug resistance genotyping assay in HIV-exposed infants in Thailand
Creators: name: Siriphan Saeng-Aroon
Publisher: name: กองโรคเอดส์และโรคติดต่อทางเพศสัมพันธ์ กรมควบคุมโรค
Year: 2023
Subjects: HIV drug resistance
dried blood spots
HIV-exposed infants

description: วารสารโรคเอดส์, 35, 3, 160-171
Reply to Comment on "Berry phase correction to electron density of states in solids"
Creators: name: Xiao, Di
name: Shi, Junren
name: Niu, Qian
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The Comment by Duval et al. [PRL 96, 099701 (2006)] addresses an important, but not the main, result of our Letter [PRL 95, 137204 (2005)]. It does not contradict our results in substance, and the only objection is really on the style of approach.
แนวทางการผลักดันยาต้านเอชไอวีสูตรใหม่เข้าสู่ประเทศไทยและชุดสิทธิประโยชน์ของกองทุนสุขภาพ
Creators: name: ลาวัณย์ สันติชินกุล
Publisher: name: กองโรคเอดส์และโรคติดต่อทางเพศสัมพันธ์ กรมควบคุมโรค
Year: 2023
Subjects: การปรับเปลี่ยนยาทีแอลดี
สูตรยาหลักโดลูเทกราเวียร์
สูตรยาหลักอีฟาเวอเรนซ์
ชุดสิทธิประโยชน์

description: วารสารโรคเอดส์, 35, 3, 172-183
Συμβολή στη μελέτη της παθογένειας της επίσταξης στην φυσική λεϊσμανίωση του σκύλου (Leishmania infantum-chagasi)
Creators: name: Πετανίδης, Θεόδωρος Α.
Publisher: name: Aristotle University of Thessaloniki
Year: 2008
Subjects: Επίσταξη
Αιμόσταση
Ρινίτιδα
Epistaxis
Hemostasis
Rhinitis

description: The aiΗ επίσταξη είναι σημαντική κλινική εκδήλωση της ΛΣ με συχνότητα που κυμαίνεται από 5 ως 15%. Σε πρόσφατη μελέτη, η ΛΣ ευθυνόταν για το 48% των περιστατικών επίσταξης του σκύλου στη χώρα μας. Στόχος της παρούσας μελέτης ήταν η όσο το δυνατόν εκτενέστερη και βαθύτερη διερεύνηση της παθογένειας της επίσταξης στη ΛΣ, όχι μόνο επειδή δεν έχει μελετηθεί σε μεγάλο αριθμό κλινικών περιστατικών αλλά και επειδή δεν έχουν μελετηθεί πιθανοί συνυπάρχοντες παράγοντες, αφού είναι γνωστό ότι η επίσταξη δεν έχει αναφερθεί στην πειραματική μορφή της νόσου. Ως εκ τούτου, καταβλήθηκε προσπάθεια για την ανάλυση όσο το δυνατόν περισσοτέρων παραμέτρων που έχουν σχέση με την αιμόσταση και την ιστολογική εικόνα του ρινικού βλεννογόνου
description: Αιm of the present study was to investigate, as far as possible, the pathogenetic mechanism underlying CanL-associated epistaxis, not only because of the relatively small number of cases investigated before in a similar study but most importantly because of the potential influence concurrent factors, which are commonly seen in natural cases, may exert on the expression of nasal bleeding. To accomplish these goals, an attempt was made to measure as many hemostatic parameters as possible and to investigate more extensively nasal mucosa biopsies obtained from CanL cases, with or without epistaxis.
The characterization of porous rocks with nuclear magnetic resonance and the confocal laser scanning microscope
Creators: name: Chapman, Alice Elizabeth
Publisher: name: University of British Columbia
Year: 2008

description: The characterization of porous media with the confocal laser scanning microscope (CLSM) and nuclear magnetic resonance (NMR) was investigated. Pore casts (epoxy replicas) of one sandstone, Berea 100, and two carbonates, S55 and S77, were imaged with the CLSM. Isolated two-dimensional images and serial sections, a series of two-dimensional images separated by a specific vertical distance, were collected. The isolated images were analysed and mean pore radii of 25.3, 17.5, and 90.2p.m were determined for Berea 100, S55 and S77 respectively. The serial sections were reconstructed to form three-dimensional images of the pore networks. However, the pores in the samples were large compared to the depth of the pore casts, resulting in images with insufficient depth to allow three-dimensional pore size analysis. Spin-lattice ( T1)measurements of twenty-two saturated carbonates (samples S31 to S49, S54, S55, S77) and six partially saturated carbonates were analysed to determine pore sizes and fluid distributions respectively. Pore sizes were calculated using the “two-fractions in fast exchange” model and the slow diffusion model of Brownstein and Tarr (1979). Samples S31 to S49, with pore radii of less than 41.Lm, were within the fast diffusion regime and thus the “twofractions in fast exchange model” produced reliable pore sizes. Samples S54, S55 and S77, with mean pore radii of 5.1, 19.3, and 85.3.tm, were not within the fast diffusion regime and so the accurate analysis of data for these samples required the slow diffusion model. The spin-lattice time constants calculated for the partially saturated samples were assumed to be proportional to the sizes of the saturated pores. Thus it was concluded that the larger pores within the samples were drained preferentially; however, large pores which were accessible through smaller pore throats remained saturated to low saturations. Further investigation into these methods could focus on the production of pore casts to enable reconstruction of an image with sufficient depth for three-dimensional analysis or on the development of a pore model which more closely approximate the shape of the pores.
Additional file 9 of Comparison of sequencing data processing pipelines and application to underrepresented African human populations
Creators: name: Breton, Gwenna
name: Johansson, Anna C. V.
name: Sjödin, Per
name: Schlebusch, Carina M.
name: Jakobsson, Mattias
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 9. Genome coverage is a function of average sequencing depth. Percentage of the genome covered by at least 15X per individual in “BP2019”, against the average sequencing depth. Dots are coloured by ancestry
Effective strategies for managing your research data (beginners session)
Creators: name: Castle, Clair
Publisher: name: Apollo - University of Cambridge Repository
Year: 2018
Subjects: research data management

description: This course introduces the basic principles of Research Data Management (RDM) and how they are relevant throughout the research life cycle. Intended for those who are new to RDM, this course will firstly explain what RDM is, and then go on to cover basic data back-up and storage options, file sharing tools, and strategies for organising your data, as well as providing guidance on managing personal or sensitive data. You will also learn about the range of support services available to you within the University for managing your data.
Επίδραση της α-ζεαραλενόλης στην ανάπτυξη-εξέλιξη πρώϊμων εμβρύων χοίρου in vitro
Creators: name: Σαράτση, Αικατερίνη Φ.
Publisher: name: Aristotle University of Thessaloniki
Year: 2008
Subjects: Νεαρές σύες
οιστραδιόλη-17β
gilts
Oestradial-17b

description: Στην παρούσα εργασία, λοιπόν, μελετήθηκε η in vitro επίδραση του πλέον τοξικού μεταβολίτη της ζεαραλενόνης, της α-ζεαραλενόλης (α-ΖΕΝ) στη συγκέντρωση της οιστραδιόλης-17β και στη δραστηριότητα των ενεργοποιών του πλασμινογόνου στο υπόστρωμα καλλιέργειας εμβρύων χοίρου, ηλικίας 12 ημερών. Για τους σκοπούς της έρευνας χρησιμοποιήθηκαν 14 νεαρές ένηβες σύες που υποβλήθηκαν σε συγχρονισμό του οίστρου [(eCG, 700 IU/ζώο, i.m., εφάπαξ, ημέρα -5) και (hCG, 700 IU/ζώο, i.m., εφάπαξ, ημέρα -2)] και τεχνητή σπερματέγχυση και θανατώθηκαν 12 ημέρες μετά την έναρξη του οίστρου. Μετά από πλύση του κάθε κέρατος της μήτρας, τα νηματοειδή έμβρυα, ηλικίας 12 ημερών, συλλέχθηκαν, εκτιμήθηκαν, υπό στεροεοσκοπική παρατήρηση, χωρίστηκαν σε τέσσερις πειραματικές ομάδες και καλλιεργήθηκαν μεμονωμένα
description: The aim of the present study was to investigate the in vitro effect of α-ZEN on oestradiol-17β concentration and plasminogen activator activity of the culture medium of day-12 porcine conceptuses. Fourteen gilts aged 6 to 6.5 months were oestrus synchronized using eCG and hCG and artificially inseminated on the first day of standing oestrus (day 0) and 12 hours later. Gilts were sacrificed on day 12 after first insemination and filamentous conceptuses were recovered post mortem. Each uterine horn was irrigated with 120 ml PBS and collected conceptuses were evaluated under a stereoscope and equally distributed among four groups with respect of their weight. Conceptus tissues that ranged between 93.5 and 404.5 mg were cultured individually in a controlled atmosphere chamber for 24 h. Culture medium samples were obtained every 8 h.
Protein language models trained on multiple sequence alignments learn phylogenetic relationships
Creators: name: Lupo, Umberto
name: Sgarbossa, Damiano
name: Bitbol, Anne-Florence
Publisher: name: arXiv
Year: 2022
Subjects: subject: Biomolecules (q-bio.BM)
subject: Machine Learning (cs.LG)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences
subject: FOS: Computer and information sciences
subject: J.3; I.2.7
subject: 68T07, 68T50, 92-08, 92B20

description: Self-supervised neural language models with attention have recently been applied to biological sequence data, advancing structure, function and mutational effect prediction. Some protein language models, including MSA Transformer and AlphaFold's EvoFormer, take multiple sequence alignments (MSAs) of evolutionarily related proteins as inputs. Simple combinations of MSA Transformer's row attentions have led to state-of-the-art unsupervised structural contact prediction. We demonstrate that similarly simple, and universal, combinations of MSA Transformer's column attentions strongly correlate with Hamming distances between sequences in MSAs. Therefore, MSA-based language models encode detailed phylogenetic relationships. We further show that these models can separate coevolutionary signals encoding functional and structural constraints from phylogenetic correlations reflecting historical contingency. To assess this, we generate synthetic MSAs, either without or with phylogeny, from Potts models trained on natural MSAs. We find that unsupervised contact prediction is substantially more resilient to phylogenetic noise when using MSA Transformer versus inferred Potts models.
description: 29 pages, 10 figures, 7 tables
Maximal distance spectral radius of 4-chromatic planar graphs
Creators: name: Erey, Aysel
Publisher: name: arXiv
Year: 2021
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: We show that the kite graph $K_4^{(n)}$ uniquely maximizes the distance spectral radius among all connected $4$-chromatic planar graphs on $n$ vertices.
description: Accepted for publication in Linear Algebra and its Applications
A Search for Neutrinos from the Solar hep Reaction and the Diffuse Supernova Neutrino Background with the Sudbury Neutrino Observatory
Creators: name: The SNO Collaboration
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: Astrophysics (astro-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: A search has been made for neutrinos from the hep reaction in the Sun and from the diffuse supernova neutrino background (DSNB) using data collected during the first operational phase of the Sudbury Neutrino Observatory, with an exposure of 0.65 kilotonne-years. For the hep neutrino search, two events are observed in the effective electron energy range of 14.3 MeV
description: 12 pages, 5 figures, accepted for publication by ApJ. Minor updates to address referees comments
Το οιονεί διδακτικό εγχειρίδιο: πρόταση μοντέλου πολυμεσικής βάσης δεδομένων σε αντικατάσταση του διδακτικού εγχειριδίου
Creators: name: Χόνδρης, Γεώργιος Κ.
Publisher: name: Aristotle University of Thessaloniki
Year: 2008
Subjects: Ψηφιακό εγχειρίδιο
Διαπραγμάτευση νοήματος
Virtual textbook
Negotiation of meaning

description: Τα έντυπα εγχειρίδια αποτελούν μέχρι και σήμερα, το βασικό διδακτικό υλικό της ξενόγλωσσης τάξης, σε όλον σχεδόν τον κόσμο. Παρά τα σημαντικά τους πλεονεκτήματα όμως, χαρακτηρίζονται από εγγενή μειονεκτήματα που δυσχεραίνουν την επικοινωνιακή μάθηση μιας ξένης γλώσσας. Η ανάγκη για ένα νέο διδακτικό υλικό έχει γίνει τα τελευταία χρόνια πιο επιτακτική από ποτέ και η τεχνολογία έχει παρουσιάσει πολλά πακέτα λογισμικού και ψηφιακά εγχειρίδια, με στόχο να βελτιώσει την ξενόγλωσση εκπαίδευση. Οι νέες αυτές προτάσεις, αν και προσφέρουν πληθώρα εκπαιδευτικών πλεονεκτημάτων, παραμένουν σε μεγάλο βαθμό δέσμιες του έντυπου εγχειριδίου, περιορίζοντας έτσι την αξία τους ως επικοινωνιακά διδακτικά υλικά και αφήνοντας ανεκμετάλλευτες πολλές από τις θεωρητικές δυνατότητες της τεχνολογίας. Η διατριβή αυτή παρουσιάζει το "Οιονεί Εγχειρίδιο", ένα νέο ηλεκτρονικό εγχειρίδιο, που προσδοκά να είναι σύμφωνο και να καλύπτει τις περισσότερες από τις ανάγκες της επικοινωνιακής προσέγγισης διδασκαλίας
description: Paper textbooks continue to play the role of the main teaching material in most foreign language learning classrooms around the world. Despite such a success they are characterized by many important drawbacks that hinder any effort for learning communicatively a foreign language. The need for a new kind of textbook is now more important than ever and technology has offered various software programs and digital coursebooks in order to improve language learning. All these efforts offer many advantages over paper textbooks but they still remain faithful to past methodologies. This dissertation proposes the "virtual textbook", a new model of a digital textbook that tries to satisfy all the needs of the Communicative Approach and thus be a more communicative teaching material
Casimir forces in the flatland: interplay between photo-induced phase transitions and quantum Hall physics
Creators: name: Muniz, Y.
name: Farina, C.
name: Kort-Kamp, W. J. M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We investigate how photo-induced topological phase transitions and the magnetic-field-induced quantum Hall effect simultaneously influence the Casimir force between two parallel sheets of staggered two-dimensional (2D) materials of the graphene family. We show that the interplay between these two effects enables on-demand switching of the force between attractive and repulsive regimes while keeping its quantized characteristics. We also show that doping these 2D materials below their first Landau level allows one to probe the photoinduced topology in the Casimir force without the difficulties imposed by a circularly polarized laser. We demonstrate that the magnetic field has a huge impact on the thermal Casimir effect for dissipationless materials, where the quantized aspect of the energy levels leads to a strong repulsion that could be measured even at room temperature.
description: 8 pages, 5 figures