cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Στάσεις και αντιλήψεις εκπαιδευτικών πολυπολιτισμικών τάξεων Πρωτοβάθμιας Εκπαίδευσης για τη συμβολή των διγλωσσικών και διαγλωσσικών εκπαιδευτικών πρακτικών στη γλωσσική ανάπτυξη των δίγλωσσων μαθητών
Creators: name: Κουτούλης, Κωνσταντίνος Μιχαήλ
Publisher: name: Aristotle University of Thessaloniki
Year: 2017
Subjects: διαγλωσσικότητα
διγλωσσία
διγλωσσικές και διαγλωσσικές εκπαιδευτικές πρακτικές
Translanguanging
Bilingualism
Bilingual and translanguanging education practices

description: Τα τελευταία χρόνια, έχει υπάρξει αυξανόμενο ενδιαφέρον μεταξύ των φορέων χάραξης εκπαιδευτικής πολιτικής, των επαγγελματιών και των ερευνητών στις αρχές της διγλωσσίας και διαγλωσσικότητας. Στην παρούσα ερευνητική εργασία συμμετείχαν 92 εκπαιδευτικοί της Πρωτοβάθμιας Εκπαίδευσης της ελληνικής επικράτειας με στόχο τη διερεύνηση του βαθμού συμφωνίας τους ως προς την προαγωγή των γλωσσικών, γνωστικών, ψυχο-συναισθηματικών και κοινωνικών διαστάσεων των δίγλωσσων/πολύγλωσσων παιδιών μέσω της εφαρμογής διγλωσσικών και διαγλωσσικών εκπαιδευτικών πρακτικών. Τα αποτελέσματα έδειξαν ότι οι συμμετέχοντες εκπαιδευτικοί συμφωνούν σε μεγάλο βαθμό ως προς τη χρησιμότητα των διαγλωσσικών πρακτικών σε όλες τις υπο μελέτη διαστάσεις οι οποίες βρέθηκε ότι συσχετίζονται στατιστικά σημαντικά (p<0,05). Κατά την ανάλυση των ανοιχτών ερωτήσεων σε σχέση με την εφαρμογή διαγλωσσικών πρακτικών επικράτησε η διαθεματική προσέγγιση, η βιωματική μάθηση, η αξιοποίηση εποπτικών μέσων, η διαφοροποιημένη διδασκαλία, η επικοινωνιακή προσέγγιση και οι στρατηγικές νοηματοδότησης της γνώσης. Τα ευρήματα αυτά υποδεικνύουν τις σημαντικές συνέπειες που μπορεί να έχει η διδασκαλία διαφορετικών αντικειμένων μέσω των διαγλωσσικών πρακτικών στην εκπαίδευση στο δημοτικό
description: In recent years, there has been growing interest among educational policy-making, professionals and researchers in the early bilingualism and translanguanging. The sample of the current research study consisted of 92 teachers working in public schools in Greece. The aim was to investigate their degree of agreement in promoting linguistic, cognitive, psycho-emotional and social dimensions of bilingual / multilingual children through the use of bilingual and translanguaging educational practices. The results showed that the participants largely agreed on the usefulness of translanguaging practices at all study sub dimensions (educational benefits) which were also found to inter-correlate statistically significantly (p<0,05). While analyzing the open questions regarding the use of translanguaging practices we found that the interdisciplinary approach, the experiential learning, the use of technology, the differentiated teaching and the communicative approach were highly developed as translanguaging educational practices. The findings indicate that translanguaging practices could have significant impact on teaching different subjects in Primary schools
Additional file 2 of Monophyletic blowflies revealed by phylogenomics
Creators: name: Yan, Liping
name: Pape, Thomas
name: Meusemann, Karen
name: Kutty, Sujatha Narayanan
name: Meier, Rudolf
name: Bayless, Keith M.
name: Zhang, Dong
Publisher: name: figshare
Year: 2021
Subjects: subject: Neuroscience
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Plant Biology

description: Additional file 2: Figure S1. Maximum Likelihood tree inferred from the amino acid matrix of dataset Dref_Ltax. Figure S2. Bayesian reconstructions of ancestral states of adult metallic color. Figure S3. Heatmaps showing data coverage and homogeneity test of matrices Dref_Ltax. Figure S4. Heatmaps showing data coverage and homogeneity test of matrices Dref_Stax. Figure S5. Heatmaps showing data coverage and homogeneity test of matrices Aref_Ltax. Figure S6. Heatmaps showing data coverage and homogeneity test of matrices Aref_Stax.
Αποδοτικότητα και αποτελεσματικότητα στο δημόσιο τομέα – Μελέτη περίπτωσης : Τμήμα Εμπορίου και Τουρισμού Π.Ε. Χαλκιδικής
Creators: name: Λυκοβίτης, Δημήτριος Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2017
Subjects: Αποδοτικότητα-δημόσιος τομέας
Αποτελεσματικότητα-δημόσιος τομέας
Ηλεκτρονική διακυβέρνηση
Efficiency-public sector
Effectiveness-public sector
E-government

description: Με την παρούσα μεταπτυχιακή διατριβή επιχειρείται η επικέντρωση στις έννοιες της αποδοτικότητας και της αποτελεσματικότητας στο δημόσιο τομέα και η σύνδεση τους με κρίσιμους παράγοντες που τις επηρεάζουν, λαμβάνοντας υπόψη δυο κρίσιμα σημεία. Το πρώτο αφορά στο γεγονός ότι οι ανθρώπινοι πόροι αποτελούν το πολυτιμότερο στοιχείο ενός οργανισμού που επηρεάζει την αποτελεσματικότητά του και το δεύτερο αφορά στις ανάγκες και στάσεις των εξυπηρετούμενων πολιτών. Μέσω της έρευνας η παρούσα διατριβή θέτει ορισμένους σκοπούς και στόχους προκειμένου να δώσει προτάσεις για τον αποτελεσματικότερο και αποδοτικότερο τρόπο λειτουργίας των υπηρεσιών ενώ μέσα στην έρευνα αποτυπώνεται και συγκεκριμένη μελέτη περίπτωσης δημοσίου οργανισμού. Προς αυτή την κατεύθυνση η παρούσα έρευνα επιχειρεί να εμπλουτίσει την υπάρχουσα βιβλιογραφία και ειδικότερα να στοχεύσει στους άξονες που θεωρητικά επηρεάζουν τις ως άνω έννοιες ήτοι η στοχοθεσία, η αξιολόγηση των υπαλλήλων, η επιμόρφωση των υπαλλήλων και η ηλεκτρονική διακυβέρνηση. Τα αποτελέσματα της έρευνας αναμένεται να συμβάλλουν στη χάραξη πολιτικών που οδηγούν στην αποτελεσματικότητα του δημοσίου τομέα και που θα σχετίζονται με την βελτίωση της ποιότητας του, με την ορθολογικότερη διάρθρωση των δαπανών, με την αποδοτικότερη λειτουργία του
description: In this thesis attempts to focus on the concepts of efficiency and effectiveness in the public sector and their connection with critical factors affecting it, taking into account two critical points. The first relates to the fact that human resources are the most valuable asset of an organization affects the effectiveness and the second relates to the needs and attitudes of citizens served. Through research this thesis sets certain goals and objectives in order to give recommendations for the most effective and efficient manner of operation of services while in the research reflected this public sector case study. In this direction, this research attempts to enrich the existing literature and particularly to target the axes theoretically affecting the concepts namely targeting, evaluation of employees, training of officials and IT governance. The research results are expected to contribute to developing policies that lead to the effectiveness of the public sector and which relate to the improvement of the quality, rational structure of expenditure, the efficient operation of
A comparative analysis of Galactic extinction at low Galactic latitudes
Creators: name: Schröder, A. C.
name: van Driel, W.
name: Kraan-Korteweg, R. C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We use near-infrared (J-K)-colours of bright 2MASS galaxies, measured within a 7"-radius aperture, to calibrate the Schlegel et al. (1998) DIRBE/IRAS Galactic extinction map at low Galactic latitudes ($|b| < 10^{\rm o}$). Using 3460 galaxies covering a large range in extinction (up to $A_K$ = 1.15 or E(B-V) ~ 3.19), we derive a correction factor $f = 0.83 \pm 0.01$ by fitting a linear regression to the colour-extinction relation, confirming that the Schlegel et al. maps overestimate the extinction. We argue that the use of only a small range in extinction (e.g., $A_K$ < 0.4) increases the uncertainty in the correction factor and may overestimate it. Our data confirms the Fitzpatrick (1999) extinction law for the J- and K-band. We also tested four all-sky extinction maps based on Planck satellite data. All maps require a correction factor as well. In three cases the application of the respective extinction correction to the galaxy colours results in a reduced scatter in the colour-extinction relation, indicating a more reliable extinction correction. Finally, the large galaxy sample allows an analysis of the calibration of the extinction maps as a function of Galactic longitude and latitude. For all but one extinction map we find a marked offset between the Galactic Centre and Anticentre region, but not with the dipole of the Cosmic Microwave Background. Based on our analysis, we recommend the use of the GNILC extinction map by Planck Collaboration (2016b) with a correction factor $f = 0.86 \pm 0.01$.
description: 20 pages, 14 figures, accepted by MNRAS; online material available through MNRAS, CDS or by request from the main author
Anti-tyrosinase and antioxidant activities of Impatiens balsamina L.
Creators: name: Intira Koodkaew
name: Patcharaphan Sukonkhajorn
Publisher: name: Research and Development Office, Prince of Songkla University
Year: 2019
Subjects: antioxidant
Impatiens balsamina L.
phytochemicals
tyrosinase inhibition

description: Songklanakarin Journal of Science and Technology, 41, 3, 686-692
Application of continuous and discrete optimal control to feeding of farm animals
Creators: name: Sathaporn Puengpo
name: Moore, Elvin James
name: Chanakarn Kiataramkul
Publisher: name: Research and Development Office, Prince of Songkla University
Year: 2019
Subjects: continuous optimal control
discrete optimal control
feeding of farm animals

description: Songklanakarin Journal of Science and Technology, 41, 3, 587-598
Complex magnetic order in the kagome staircase compound Co3V2O8
Creators: name: Chen, Y.
name: Lynn, J. W.
name: Huang, Q.
name: Woodward, F. M.
name: Yildirim, T.
name: Lawes, G.
name: Ramirez, A. P.
name: Rogado, N.
name: Cava, R. J.
name: Aharony, A.
name: Entin-Wohlman, O.
name: Harris, A. B.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Co3V2O8 (CVO) has a geometrically frustrated magnetic lattice, a Kagome staircase. The crystal structure consists of two inequivalent Co sites, one-dimensional chains of Co(2) spine sites, linked by Co(1) cross-tie sites. Neutron powder diffraction has been used to solve the basic magnetic and crystal structures of this system, while polarized and unpolarized single crystal diffraction measurements have been used to reveal a variety of incommensurate phases, interspersed with lock-in transitions to commensurate phases. CVO initially orders magnetically at 11.3 K into an incommensurate, transversely polarized, spin density wave state, with wave vector k=(0,delta,0) with delta=0.55 and the spin direction along the a axis. Delta is found to decrease monotonically with decreasing temperature, and then it locks into a commensurate antiferromagnetic structure with delta=0.5 for 6.9
Ba0.08Y0.04Co2.5Fe0.09O4-? cathode deposited on GDC10 electrolyte by spray pyrolysis technique
Creators: name: Kantida Boonma
name: Chainuson Kasagepongsarn
name: Suthawee Phaijit
Publisher: name: Research and Development Office, Prince of Songkla University
Year: 2019
Subjects: spray pyrolysis
BYCF cathode
GDC10
BYCF-GDC10

description: Songklanakarin Journal of Science and Technology, 41, 3, 607-611
Τα αρχοντικά αξιώματα στην αθηναϊκή δημοκρατία και οι προϋποθέσεις ανάληψής τους
Creators: name: Τζήμας, Αστέριος Κωνσταντίνου
Publisher: name: Aristotle University of Thessaloniki
Year: 2017
Subjects: Δημοκρατία-Αρχαία Αθήνα
Οι πολιτειακές αρχές
Democracy-Αncient Athens
Τhe state authorities

description: Το θέμα της παρούσας εργασίας είναι τα αρχοντικά αξιώματα στην αθηναϊκή δημοκρατία και οι προϋποθέσεις ανάληψής τους. Οι πολιτειακές αρχές που δημιούργησε δηλαδή, η αθηναϊκή πολιτεία κατά τη δημοκρατική περίοδο (5ος – 4ος π.Χ. αιώνας) και τα απαραίτητα προσόντα-προϋποθέσεις που απαιτούνταν για να αναδειχθεί κάποιος πολίτης σε αυτές. Γίνεται μια αναφορά στα βασικά χαρακτηριστικά του δημοκρατικού πολιτεύματος. Περιγράφονται τα γεγονότα που οδήγησαν στην εμφάνιση του θεσμού των αρχόντων και τα νέα δεδομένα που προέκυψαν για την πολιτεία μετά την καθιέρωσή του. Ακολουθεί, η καταγραφή των πολιτειακών αρχών και η ανάλυση των αρμοδιοτήτων τους. Στη συνέχεια, περιγράφονται τα βασικά προσόντα που απαιτούνταν για να αναλάβει κάποιος πολίτης δημόσιο αξίωμα, οι τρόποι ανάδειξης στα αξιώματα και η διαδικασία της δοκιμασίας, με την οποία ελεγχόταν ολόκληρη η ζωή των εν δυνάμει αρχόντων και διαπιστωνόταν, παράλληλα, αν αυτοί διέθεταν όλα τα απαραίτητα για το αξίωμα προσόντα. Η εργασία ολοκληρώνεται με την διατύπωση συμπερασμάτων που αφορούν τη γενικότερη λειτουργία του δημοκρατικού πολιτεύματος, κάποιες αδυναμίες του, αλλά και την «κληρονομιά» που αυτό άφησε στην ιστορία και την επιστήμη
description: The subject of this thesis is the access to a magistrate office in ancient Athens. Specifically, the state authorities established in the Athenian state during the democratic period (5th-4th century BC) and also the necessary qualifications-conditions required in order for a citizen to become one. Moreover, a brief mention is made on the basic features of democracy. A description follows on the events that led to the emergence of the institution of magistrate offices and the new data that emerged concerning the Athenian state after their establishment. Furthermore, the state authorities and their functions are mentioned and analyzed. Also, an analysis is made about the basic skills and qualifications that were required in order for a citizen to undertake public office, the procedures concerning the appointment to an office and the procedure of “dokimasia”, which was a means to check the entire life of potential magistrates and establish if they had all the necessary qualifications for taking office. The thesis is concluded with conclusions regarding the overall functioning of democracy, some of its weaknesses, but also the "legacy" that this left in history and science
Two-Photon Widths of the chi_cJ States of Charmonium
Creators: name: CLEO Collaboration
name: Ecklund, K. M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Using a data sample of 24.5 million psi(2S) the reactions psi(2S)->gamma chi_cJ, chi_cJ->gamma gamma have been studied for the first time to determine the two-photon widths of the chi_cJ states of charmonium in their decay into two photons. The measured quantities are B(psi(2S)->gamma chi_c0)xB(chi_c0->gamma gamma)=(2.22+-0.32+-0.10)x10^-5, and B(psi(2S)->gamma chi_c2)xB(chi_c2->gamma gamma)=(2.70+-0.28+-0.15)x10^-5. Using values for B(psi(2S)->gamma chi_c0,c2) and Γ(chi_c0,c2) from the literature the two-photon widths are derived to be Γ_{gamma gamma}(chi_c0)=(2.53+-0.37+-0.26) keV, Γ_{gamma gamma}(chi_c2)=(0.60+-0.06+-0.06) keV, and R=Γ_{gamma gamma}(chi_c2)/Γ_{gamma gamma}(chi_c0)= 0.237+-0.043+-0.034. The importance of the measurement of R is emphasized. For the forbidden transition, chi_c1->gamma gamma, an upper limit of Γ_{gamma gamma}(chi_c1)<0.03 keV is established.
description: 9 pages, available throuhg http://www.lns.cornell.edu/public/CLNS/, submitted to PRL
Experimental entanglement of six photons in graph states
Creators: name: Lu, Chao-Yang
name: Zhou, Xiao-Qi
name: Gühne, Otfried
name: Gao, Wei-Bo
name: Zhang, Jin
name: Yuan, Zhen-Sheng
name: Goebel, Alexander
name: Yang, Tao
name: Pan, Jian-Wei
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Graph states are special kinds of multipartite entangled states that correspond to mathematical graphs where the vertices take the role of quantum spin systems and the edges represent interactions. They not only provide an efficient model to study multiparticle entanglement, but also find wide applications in quantum error correction, multi-party quantum communication and most prominently, serve as the central resource in one-way quantum computation. Here we report the creation of two special instances of graph states, the six-photon Greenberger-Horne-Zeilinger states -- the largest photonic Schrödinger cat, and the six-photon cluster states-- a state-of-the-art one-way quantum computer. Flexibly, slight modifications of our method allow creation of many other graph states. Thus we have demonstrated the ability of entangling six photons and engineering multiqubit graph states, and created a test-bed for investigations of one-way quantum computation and studies of multiparticle entanglement as well as foundational issues such as nonlocality and decoherence.
Joint H-alpha and X-Ray Observations of Massive X-Ray Binaries. III. The Be X-ray Binaries HDE 245770 = A 0535+26 and X Persei
Creators: name: Grundstrom, E. D.
name: Boyajian, T. S.
name: Finch, C.
name: Gies, D. R.
name: Huang, W.
name: McSwain, M. V.
name: O'Brien, D. P.
name: Riddle, R. L.
name: Trippe, M. L.
name: Williams, S. J.
name: Wingert, D. W.
name: Zaballa, R. A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present results from an H-alpha monitoring campaign of the Be X-ray binary systems HDE 245770 = A 0535+26 and X Per. We use the H-alpha equivalent widths together with adopted values of the Be star effective temperature, disk inclination, and disk outer boundary to determine the half-maximum emission radius of the disk as a function of time. The observations of HDE 245770 document the rapid spectral variability that apparently accompanied the regeneration of a new circumstellar disk. This disk grew rapidly during the years 1998 - 2000, but then slowed in growth in subsequent years. The outer disk radius is probably truncated by resonances between the disk gas and neutron star orbital periods. Two recent X-ray outbursts appear to coincide with the largest disk half-maximum emission radius attained over the last decade. Our observations of X Per indicate that its circumstellar disk has recently grown to near record proportions, and concurrently the system has dramatically increased in X-ray flux, presumably the result of enhanced mass accretion from the disk. We find that the H-alpha half-maximum emission radius of the disk surrounding X Per reached a size about six times larger than the stellar radius, a value, however, that is well below the minimum separation between the Be star and neutron star. We suggest that spiral arms excited by tidal interaction at periastron may help lift disk gas out to radii where accretion by the neutron star companion becomes more effective.
description: accepted to ApJ, 24 pages including 3 tables & 10 figures
How Does Casimir Energy Fall?
Creators: name: Fulling, Stephen A.
name: Milton, Kimball A.
name: Parashar, Prachi
name: Romeo, August
name: Shajesh, K. V.
name: Wagner, Jef
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Doubt continues to linger over the reality of quantum vacuum energy. There is some question whether fluctuating fields gravitate at all, or do so anomalously. Here we show that for the simple case of parallel conducting plates, the associated Casimir energy gravitates just as required by the equivalence principle, and that therefore the inertial and gravitational masses of a system possessing Casimir energy $E_c$ are both $E_c/c^2$. This simple result disproves recent claims in the literature. We clarify some pitfalls in the calculation that can lead to spurious dependences on coordinate system.
description: 5 pages, 1 figure, REVTeX. Minor revisions, including changes in references
Set Identification in Models with Multiple Equilibria
Creators: name: Galichon, Alfred
name: Henry, Marc
Publisher: name: arXiv
Year: 2021
Subjects: subject: Econometrics (econ.EM)
subject: FOS: Economics and business

description: We propose a computationally feasible way of deriving the identified features of models with multiple equilibria in pure or mixed strategies. It is shown that in the case of Shapley regular normal form games, the identified set is characterized by the inclusion of the true data distribution within the core of a Choquet capacity, which is interpreted as the generalized likelihood of the model. In turn, this inclusion is characterized by a finite set of inequalities and efficient and easily implementable combinatorial methods are described to check them. In all normal form games, the identified set is characterized in terms of the value of a submodular or convex optimization program. Efficient algorithms are then given and compared to check inclusion of a parameter in this identified set. The latter are illustrated with family bargaining games and oligopoly entry games.
description: 54 pages, 23 figures, 2 tables
Characterization of NFAT expression in human glioma and its correlation with tumor grade
Creators: name: Teerapon Pacharoen
name: Sorayouth Chumnanvej
name: Arunee Singhsnaeh
name: Pimtip Sanvarinda
name: Sukumal Chongthammakun
name: Nattinee Jantaratnotai
Publisher: name: Research and Development Office, Prince of Songkla University
Year: 2019
Subjects: brain tumor
glioma
NFAT
Olig
VEGF

description: Songklanakarin Journal of Science and Technology, 41, 3, 679-685
Ανάλυση δεδομένων: Συστήματα ανταμοιβής σε καταστήματα λιανικής
Creators: name: Βράνα, Ελένη Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2017
Subjects: Επιχειρηματική Ευφυΐα
Συστήματα Ανταμοιβής
Επιβράβευση Πελατών
Business Intelligence
Loyalty Systems
Customer rewards

description: Στη σημερινή ανταγωνιστική αγορά, η διατήρηση των υπαρχόντων πελατών είναι πιο επικερδής από την προσέλκυση νέων. Έτσι, ο σκοπός της διατριβής αυτής ήταν να αποκτήσουμε μια καλύτερη κατανόηση των χαρακτηριστικών των προγραμμάτων πιστότητας - επιβράβευσης για τα καταστήματα λιανικής πώλησης. Οι έννοιες που αναλύονται είναι εκείνες της Επιχειρηματικής Ευφυΐας, τα προγράμματα επιβράβευσης, η παιγνιοποίηση και οι αρχές που τις διέπουν. Ιδιαίτερη έμφαση δίνεται ώστε να εξηγηθούν οι συνθήκες και τα χαρακτηριστικά τους. Τα δεδομένα για αυτή τη μελέτη συλλέχθηκαν με τη χρήση τόσο ποιοτικών και ποσοτικών μεθόδων. Οι θεωρητικές πληροφορίες συγκεντρώθηκαν από τη βιβλιογραφία, άρθρα, ερευνητικές εργασίες, το Διαδίκτυο και από τις εκθέσεις διαφόρων εταιρειών. Το εμπειρικό μέρος της εργασίας μας βοήθησε να καταλάβουμε ότι ο πιο αποτελεσματικός τρόπος για να αναπτύξουν σχέσεις με διάρκεια μεταξύ των εταιρειών και των πελατών τους είναι τα προγράμματα ανταμοιβής, προγράμματα τα οποία ανταμείβουν τους πιστούς και τακτικούς πελάτες τους. Εν κατακλείδι, οι εταιρείες σήμερα έχουν επίγνωση της σημασίας της εμπιστοσύνης των πελατών, έχοντας εισάγει προγράμματα πιστότητας πελατών και κάνοντας πολλές προσπάθειες για τη διατήρηση των πιστών πελατών τους.
description: In today’s competitive market, retaining existing customers is more profitable than attracting new ones. So the purpose of this thesis was to gain a better understanding of the characteristics of loyalty programs for retail stores. The concepts that are analyzed are those of Business Intelligence, the Loyalty programs, Gamification and the authorities governing them. Particular emphasis is given to explain their conditions and characteristics. Data for this study was collected by using both qualitative and quantitative methods. The theoretical information was gathered from literature, articles, research papers, the Internet and from company’s reports. The empirical part of the thesis helped us to understand that the the most effective way to develop relationships with duration between companies and their customers are the reward programs, programs which reward their loyal and regular customers. In conclusion, companies today are aware of the importance of customer loyalty by having introduced customer loyalty programs and for putting a lot of efforts on keeping customers loyal.
Antisymmetric Orbit Functions
Creators: name: Klimyk, Anatoliy
name: Patera, Jiri
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: In the paper, properties of antisymmetric orbit functions are reviewed and further developed. Antisymmetric orbit functions on the Euclidean space $E_n$ are antisymmetrized exponential functions. Antisymmetrization is fulfilled by a Weyl group, corresponding to a Coxeter-Dynkin diagram. Properties of such functions are described. These functions are closely related to irreducible characters of a compact semisimple Lie group $G$ of rank $n$. Up to a sign, values of antisymmetric orbit functions are repeated on copies of the fundamental domain $F$ of the affine Weyl group (determined by the initial Weyl group) in the entire Euclidean space $E_n$. Antisymmetric orbit functions are solutions of the corresponding Laplace equation in $E_n$, vanishing on the boundary of the fundamental domain $F$. Antisymmetric orbit functions determine a so-called antisymmetrized Fourier transform which is closely related to expansions of central functions in characters of irreducible representations of the group $G$. They also determine a transform on a finite set of points of $F$ (the discrete antisymmetric orbit function transform). Symmetric and antisymmetric multivariate exponential, sine and cosine discrete transforms are given.
description: Published in SIGMA (Symmetry, Integrability and Geometry: Methods and Applications) at http://www.emis.de/journals/SIGMA/
Characterizations of completely ordered k-regular semirings
Creators: name: Pakorn Palakawong Na Ayutthaya
name: Bundit Pibaljommee
Publisher: name: Research and Development Office, Prince of Songkla University
Year: 2019
Subjects: ordered semiring
ordered k-regular semiring
completely regular semiring
completely ordered k-regular semiring

description: Songklanakarin Journal of Science and Technology, 41, 3, 501-505
Exact Critical Casimir Amplitude of Anisotropic Systems from Conformal Field Theory and Self-Similarity of Finite-Size Scaling Functions in $d\geq 2$ Dimensions
Creators: name: Dohm, Volker
name: Wessel, Stefan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The exact critical Casimir amplitude is derived for anisotropic systems within the $d=2$ Ising universality class by combining conformal field theory (CFT) with anisotropic $φ^4$ theory. Explicit results are presented for the general anisotropic scalar $φ^4$ model and for the fully anisotropic triangular-lattice Ising model in finite rectangular and infinite strip geometries with periodic boundary conditions (PBC). These results demonstrate the validity of multiparameter universality for confined anisotropic systems and the nonuniversality of the critical Casimir amplitude. We find an unexpected complex form of self-similarity of the anisotropy effects near the instability where weak anisotropy breaks down. This can be traced back to the property of modular invariance of isotropic CFT for $d=2$. More generally, for $d>2$ we predict the existence of self-similar structures of the finite-size scaling functions of $O(n)$-symmetric systems with planar anisotropies and PBC both in the critical region for $ n \geq 1$ as well as in the Goldstone-dominated low-temperature region for $ n \geq 2$.
Comparative anti-inflammatory activity of eugenol and eugenyl acetate on the murine immune response in vitro
Creators: name: Aurasorn Saraphanchotiwitthaya
name: Nantaka Khorana
name: Pattana Sripalakit
Publisher: name: Research and Development Office, Prince of Songkla University
Year: 2019
Subjects: eugenol
eugenyl acetate
macrophage phagocytosis
splenocyte proliferation
cytokine

description: Songklanakarin Journal of Science and Technology, 41, 3, 641-648
Reaction-diffusion systems and nonlinear waves
Creators: name: Saxena, R. K.
name: Mathai, A. M.
name: Haubold, H. J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 33C20; 33C90

description: The authors investigate the solution of a nonlinear reaction-diffusion equation connected with nonlinear waves. The equation discussed is more general than the one discussed recently by Manne, Hurd, and Kenkre (2000). The results are presented in a compact and elegant form in terms of Mittag-Leffler functions and generalized Mittag-Leffler functions, which are suitable for numerical computation. The importance of the derived results lies in the fact that numerous results on fractional reaction, fractional diffusion, anomalous diffusion problems, and fractional telegraph equations scattered in the literature can be derived, as special cases, of the results investigated in this article.
description: LaTeX, 16 pages, corrected typos
Quark-Gluon Matter
Creators: name: d'Enterria, David
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A concise review of the experimental and phenomenological progress in high-energy heavy-ion physics over the past few years is presented. Emphasis is put on measurements at BNL-RHIC and CERN-SPS which provide information on fundamental properties of QCD matter at extreme values of temperature, density and low-x. The new opportunities accessible at the LHC, which may help clarify some of the current open issues, are also outlined.
description: Minor changes to text. New refs. included. Updated figures with final data
Development of high-temperature multi-magnetron microwave furnace for material processing
Creators: name: Direk Boonthum
name: Singkarn Chanprateep
name: Chesta Ruttanapun
name: Mudtorlep Nisoa
Publisher: name: Research and Development Office, Prince of Songkla University
Year: 2019
Subjects: microwave furnace
multi-magnetrons
high temperature
processing of materials
Comsol Multi-physics

description: Songklanakarin Journal of Science and Technology, 41, 3, 494-500
title: LONGITUDINAL RELATIONSHIP BETWEEN PROBLEMATIC SOCIAL NETWORKING USE AND INTERNALIZING PROBLEMS
Creators: name: Roesel, Lindsay
Publisher: name: University of Kentucky Libraries
Year: 2025
Subjects: classificationCode: 5.9
subject: FOS: Other social sciences

description: The purpose of this study is to examine the longitudinal and bidirectional relationships between problematic social networking use (PSNU) and internalizing problems (depressive symptoms and self-esteem) in adolescents. Data were collected from N = 360 adolescents from two public high schools in Turkey, 14.58 years old in 9th grade at Time 1 (54.3% females). Participants completed four assessments regarding problematic social media use, depression and self-esteem, over the course of two school years, once per semester in 9th and 10th grades. The study tested a series of hypotheses which tested the bidirectional relationships between PSNU on depressive symptoms and self-esteem. Study findings provided only partial support to such relationships; PSNU positively predicted depressive symptoms from Time 2 to 3, but none of the paths from depressive symptoms to PSNU were statistically significant. For self-esteem, PNSU predicted it from Time 3 to 4; on the other hand, self-esteem predicted PNSU from Time 3 to 4, thus providing some evidence of bidirectional effects. These findings provide evidence of a limited number of bidirectional effects.
description: © 2025 Lindsay Roesel
Συστήματα GIS και εφαρμογές σε θεολογικά δεδομένα
Creators: name: Ladaa, Iyad Yacoub
Publisher: name: Aristotle University of Thessaloniki
Year: 2017
Subjects: Γεωγραφικά συστήματα πληροφοριών
Θρησκευτική Πληροφορία
Patriarchate of Jerusalem
Geographic Information Systems
Religious Information

description: Η εργασία παρουσιάζει την χρήση των Γεωγραφικών Συστημάτων Πληροφοριών στο πεδίο της Θεολογίας και σε Θεολογικά δεδομένα. Για να γίνει η καλύτερη κατανόηση του θέματος, γίνεται εξήγηση της χαρτογραφίας και των συστημάτων προβολής χαρτών. Έπειτα παρουσιάζονται τα ΓΣΠ και η ιστορία της εξέλιξής τους καθώς τις δυνατότητές τους. Η επιτυχία στην χρήση των ΓΣΠ στην εκπαίδευση, στην Ιστορία, στην αρχαιολογία και στην Θεολογία παρουσιάζεται για να κατανοηθούν οι πολύπλευρη ωφελήσεις αυτών των συστημάτων και οι δυνατότητες εφαρμογής τους. Τέλος, εφαρμόστηκαν τα ΓΣΠ σε θεολογικά δεδομένα της περιοχής των Άγιων Τόπων και της δικαιοδοσίας του πατριαρχείου Ιεροσολύμων. Ως αποτέλεσμα υπήρχε η δημιουργία μιας χωρικής βάσης δεδομένων με στοιχεία του Πατριαρχείου Ιεροσολύμων. Από την Βάση εξάγονται χάρτες με πληροφορίες σχετικές με το πατριαρχείο. Επίσης, διάφορες εφαρμογές δημιουργούνται οι οποίες προσφέρουν στον απλό χρήστη πληροφορίες για το Πατριαρχείου και Πληροφορίες Πλοήγησης
description: This dissertation presents the use of the Geographic Information systems in the field of Theology and on Theological Data. For a better understanding of the subject, Cartography and the map projection systems are discussed. Also, the GIS, their history and the abilities of use are explained. The facet use of GIS is presented by the examples of the fields of Teaching, History, Archaeology and Religion. Finally, the GIS are applied on theological data of the Holy Land and the regions of the Patriarchate of Jerusalem, a spatial database with information about the Patriarchate of Jerusalem is created. From the database thematic maps with various information are extracted, and different application are created, these application presents Theological information to the user
Properties of the Nonextensive Gaussian entropy
Creators: name: Oikonomou, Thomas
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The present work investigates the Lesche stability (experimental robustness), the thermodynamic stability, the Legendre structure of thermodynamics, and derives the Maximum Entropy distribution of the one--parametric ``nonextensive Gaussian'' entropy. We show that this entropy definition fulfills both stability conditions for all values of its parameter ($q\in\mathbb{R}$). The entropy maximizer contains the Lambert $W$--function, which allows the preservation of the Legendre transformations.
description: 14 Pages
The X-Rays wind connection in PG 2112+059
Creators: name: Saez, C.
name: Brandt, W. N.
name: Bauer, F.
name: Chartas, G.
name: Misawa, T.
name: Hamann, F.
name: Gallagher, S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We study the connection between the X-ray and UV properties of the broad absorption line (BAL) wind in the highly X-ray variable quasar PG 2112+059 by comparing Chandra-ACIS data with contemporaneous UV HST/STIS spectra in three different epochs. We observe a correlation whereby an increase in the equivalent-widths (EWs) of the BALs is accompanied by a redder UV spectrum. The growth in the BALs EWs is also accompanied by a significant dimming in soft X-ray emission (<2 keV), consistent with increased absorption. Variations in the hard X-ray emission (>2 keV) are only accompanied by minor spectral variations of the UV-BALs and do not show significant changes in the EW of BALs. These trends suggest a wind-shield scenario where the outflow inclination with respect to the line of sight is decreasing and/or the wind mass is increasing. These changes elevate the covering fraction and/or column densities of the BALs and are likely accompanied by a nearly contemporaneous increase in the column density of the shield.
description: 15 pages, 9 figures, accepted in MNRAS
Effect of chemical degumming process on physicochemical properties of red palm oil
Creators: name: Mayuree Chompoo
name: Nanthina Damrongwattanakool
name: Patcharin Raviyan
Publisher: name: Research and Development Office, Prince of Songkla University
Year: 2019
Subjects: acid degumming
water degumming
red palm oil
phosphorus elimination

description: Songklanakarin Journal of Science and Technology, 41, 3, 513-521
Διαδικτυακή ολοκλήρωση και διαχείριση πολύ-διάστατων διασυνδεδεμένων δεδομένων τρίτης ηλικίας
Creators: name: Σταθόπουλος, Ευάγγελος Αθανασίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2017
Subjects: Οντολογία
Ηλεκτροεγκεφαλογράφημα
Σημασιολογικός Ιστός
Ontology
EEG
Semantic Web

description: Η παρούσα μεταπτυχιακή́ εργασία εκπονήθηκε στα πλαίσια του προγράμματος μεταπτυχιακών σπουδών της Ιατρικής Πληροφορικής του Αριστοτέλειου Πανεπιστήμιου Θεσσαλονίκης. Σκοπός της εργασίας είναι η ανάπτυξη μιας καινοτόμος οντολογίας που κύριο μέλημα της είναι να εξυπηρετήσει πλήρως τις ανάγκες ενός εξειδικευμένου εργαστηριακού περιβάλλοντος που ασχολείται με τις νευροεπιστήμες και πιο συγκεκριμένα με τις πειραματικές διαδικασίες που ακολουθούν τα ηλεκτροεγκεφαλογραφήματα και την καταγραφή δεδομένων των. Για την υλοποίηση αυτής της οντολογίας χρησιμοποιήθηκε η ανοιχτού κώδικα πλατφόρμα Protégé από το πανεπιστήμιο του Stanford καθώς και πληθώρα κλάσεων και ιδιοτήτων από προϋπάρχουσες οντολογίες χάριν της διαλειτουργικότητας και των Linked Data προς αποφυγή περαιτέρω ανάγκης αντιστοίχισης και σύγχυσης εννοιών. Τέλος, η οντολογία δοκιμάστηκε με πραγματικού τύπου δεδομένα περισυλλεγμένα κατά τη διάρκεια της τελευταίας δεκαετίας από το Εργαστήριο Ιατρικής Φυσικής του Αριστοτελείου Πανεπιστημίου Θεσσαλονίκης. Οι Reasoners της προαναφερθείσας πλατφόρμας και τα SPARQL queries τα οποία επιλέχθηκαν, δεν κατέδειξαν κανένα λογικό σφάλμα ή ασυμβατότητα όσον αφορά τα δεδομένα και τα αποτελέσματα
description: This thesis was produced as part of the graduate program of Medical Informatics of the Aristotle University of Thessaloniki. The purpose of this work is to develop an innovative ontology whose main concern is to fully serve the needs of a specialized lab environment that deals with neuroscience and particularly to the experimental procedures followed by electroencephalograms and recording data. To implement this ontology the open source platform «Protege» from Standford University was used, and of course a multitude of classes and properties of existing ontologies for the sake of interoperability and Linked Data in order to avoid further need for mapping and concepts confusion. Finally, the ontology was tested with real data type salvaged during the last decade by the Medical Physics Laboratory of the Aristotle University of Thessaloniki. The Reasoners of the aforementioned platform and the SPARQL queries that were selected, did not show any logical error or inconsistency in the data and results
Gravitational Collider Physics via Pulsar-Black Hole Binaries II: Fine and Hyperfine Structures are Favored
Creators: name: Tong, Xi
name: Wang, Yi
name: Zhu, Hui-Yu
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A rotating black hole can be clouded by light bosons via superradiance, and thus acquire an atom-like structure. If such a gravitational atom system is companioned with a pulsar, the pulsar can trigger transitions between energy levels of the gravitational atom, and these transitions can be detected by pulsar timing. We show that in such pulsar-black hole systems, fine and hyperfine structure transitions are more likely to be probed than the Bohr transition. Also, the calculation of these fine and hyperfine structure transitions are under better analytic control. Thus, these fine and hyperfine structure transitions are more ideal probes in the search for gravitational collider signals in pulsar-black hole systems.
description: 9 pages, 4 figures; v2: references added
Effect of grape seed extract as a sunscreen booster
Creators: name: Yarovaya, Liudmila
name: Watcharee Khunkitti
Publisher: name: Research and Development Office, Prince of Songkla University
Year: 2019
Subjects: grape seed extract
antioxidant
sunscreen

description: Songklanakarin Journal of Science and Technology, 41, 3, 708-715
Effect of lacquer on altered elemental proportions in the superficial layer of bone, using handheld X-ray fluorescence
Creators: name: Kittisak Buddhachat
name: Promporn Piboon
name: Korakot Nganvongpanit
Publisher: name: Research and Development Office, Prince of Songkla University
Year: 2019
Subjects: bone
discriminant analysis
element
forensic science
lacquer

description: Songklanakarin Journal of Science and Technology, 41, 3, 700-707
Low energy bounds on Poincare violation in causal set theory
Creators: name: Kaloper, Nemanja
name: Mattingly, David
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In the causal set approach to quantum gravity, Poincaré symmetry is modified by swerving in spacetime, induced by the random lattice discretization of the space-time structure. The broken translational symmetry at short distances is argued to lead to a residual diffusion in momentum space, whereby a particle can acquire energy and momentum by drift along its mass shell and a system in equilibrium can spontaneously heat up. We consider bounds on the rate of momentum space diffusion coming from astrophysical molecular clouds, nuclear stability and cosmological neutrino background. We find that the strongest limits come from relic neutrinos, which we estimate to constrain the momentum space diffusion constant by $k < 10^{-61} {\rm GeV}^3$ for neutrinos with masses $m_ν> 0.01 {\rm eV}$, improving the previously quoted bounds by roughly 17 orders of magnitude.
description: Additional discussion about behavior of alpha particles in nuclei added. Version matches that accepted in PRD
Optimal transportation and the falsifiability of incompletely specified economic models
Creators: name: Ekeland, Ivar
name: Galichon, Alfred
name: Henry, Marc
Publisher: name: arXiv
Year: 2021
Subjects: subject: Econometrics (econ.EM)
subject: FOS: Economics and business

description: A general framework is given to analyze the falsifiability of economic models based on a sample of their observable components. It is shown that, when the restrictions implied by the economic theory are insufficient to identify the unknown quantities of the structure, the duality of optimal transportation with zero-one cost function delivers interpretable and operational formulations of the hypothesis of specification correctness from which tests can be constructed to falsify the model.
description: 19 pages
O'ZBEKISTON RESPUBLIKASI OLIY TA'LIM MUASSASALARINING MARKETING FAOLIYATINI TAKOMILLASHTIRISH: HUQUQIY ASOSLAR VA STRATEGIK YONDASHUVLAR
Creators: name: Marksov, Abrorbek
Publisher: name: Zenodo
Year: 2025

description: Oliy ta’lim muassasalari (OTMlar) har bir mamlakatning ta’lim tizimining ajralmas qismi bo‘lib, nafaqat milliy, balki xalqaro miqyosda ham ta’lim sifatini oshirish, ilm-fan, innovatsiyalar va iqtisodiy rivojlanishga hissa qo‘shadi. Dunyo bo‘ylab oliy ta’lim muassasalari, raqobatbardosh brendlarni shakllantirish va ta’lim tizimini rivojlantirish borasida muhim o‘rin egallaydi. Oliy ta’limning samaradorligi va sifatini oshirish nafaqat ichki bozorni qamrab olish, balki xalqaro reytinglar va ko‘plab xalqaro hamkorliklar orqali mamlakatning global ta’lim tizimiga integratsiyasini ta’minlash imkoniyatini yaratadi.
Calibrating the Davis-Chandrasekhar-Fermi method with numerical simulations: uncertainties in estimating the magnetic field strength from statistics of field orientations
Creators: name: Liu, Junhao
name: Zhang, Qizhou
name: Commercon, Benoit
name: Valdivia, Valeska
name: Maury, Anaelle
name: Qiu, Keping
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The Davis-Chandrasekhar-Fermi (DCF) method is widely used to indirectly estimate the magnetic field strength from the plane-of-sky field orientation. In this work, we present a set of 3D MHD simulations and synthetic polarization images using radiative transfer of clustered massive star-forming regions. We apply the DCF method on the synthetic polarization maps to investigate its reliability in high-density molecular clumps and dense cores where self-gravity is significant. We investigate the validity of the assumptions of the DCF method step by step and compare the model and estimated field strength to derive the correction factors for the estimated uniform and total (rms) magnetic field strength at clump and core scales. The correction factors in different situations are catalogued. We find the DCF method works well in strong field cases. However, the magnetic field strength in weak field cases could be significantly overestimated by the DCF method when the turbulent magnetic energy is smaller than the turbulent kinetic energy. We investigate the accuracy of the angular dispersion function (ADF, a modified DCF method) method on the effects that may affect the measured angular dispersion and find that the ADF method correctly accounts for the ordered field structure, the beam-smoothing, and the interferometric filtering, but may not be applicable to account for the signal integration along the line of sight in most cases. Our results suggest that the DCF methods should be avoided to be applied below $\sim$0.1 pc scales if the effect of line-of-sight signal integration is not properly addressed.
description: 40 pages, 24 figures, accepted by ApJ
Challenges of Growing Social Media Networks From the Bottom-up Through the Agent Perspective
Creators: name: Shaheen, Joseph
Publisher: name: figshare
Year: 2021
Subjects: subject: 170203 Knowledge Representation and Machine Learning
subject: FOS: Psychology

description: We develop an agent-based model in order to understand agent/node behaviors that generate social medianetworks. We use simple rules to synthetically generate a backcloth (friend/follow) network collected usingTwitter’s API. The Twitter network was collected using seeds for known terrorist propaganda accountsin 2015. Model parameter adjustments were made to reproduce the collected network’s summary statistics,stylized facts and general structural measures. We produced an approximate network in line with the generalproperties of our collected data. We present our findings with a focus on the challenging aspects of thisreproduction. We find that while it is possible to generate a social media network utilizing a few simplerules, numerous challenges arise requiring departure from the agent viewpoint and the development of moreuseful methods. We present numerous weaknesses and challenges in our reproduction and propose potentialsolutions for future efforts.
Effect of mercerization on properties of mendong (Fimbristylis globulosa) fiber
Creators: name: Heru Suryanto
name: Sukarni Sukarni
name: Yanuar Rohmat Aji Pradana
name: Uun Yanuhar
name: Witono, Kris
Publisher: name: Research and Development Office, Prince of Songkla University
Year: 2019
Subjects: mendong fiber
mercerization
tensile strength
XRD
FTIR

description: Songklanakarin Journal of Science and Technology, 41, 3, 624-630
Effects of neurobic exercise on cognitive function and serum brain-derived neurotrophic factor in the normal to mild cognitive impaired older people: A randomized control trial
Creators: name: Phubate Napatpittayatorn
name: Thanomwong Kritpet
name: Weerasak Muangpaisan
name: Chatchawan Srisawat
name: Sarawut Junnu
Publisher: name: Research and Development Office, Prince of Songkla University
Year: 2019
Subjects: neurobic exercise
cognitive function
serum brain-derived neurotrophic factor
normal to mild cognitive impairment
older people

description: Songklanakarin Journal of Science and Technology, 41, 3, 551-558