cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Κίνητρα και ισότητα στους John Rawls και G.A. Cohen: παρουσίαση και κριτική προσέγγιση
Creators: name: Δημάκης, Ιωάννης Ρενέ Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Κίνητρα
Ισότητα
Αρχές
Incentives
Equality
Principles

description: Το θέμα της παρούσας εργασίας είναι τα κίνητρα και η ισότητα στους J.Rawls και G.A.Cohen. Στο πρώτο μέρος θα εξεταστούν οι δύο αρχές της δικαιοσύνης, τις οποίες εισάγει ο Rawls και αποτελούν το κεντρικό ζήτημα της Θεωρία της Δικαιοσύνης. Από τις δύο αρχές που θα εξεταστούν θα εστιάσουμε το ενδιαφέρον μας στη δεύτερη αρχή. Ειδικότερα, θα εξετάσουμε την αρχή της διαφοράς, σύμφωνα με την οποία ορισμένες ανισότητες είναι επιτρεπτές μόνο στη περίπτωση που βελτιώνουν τη θέση των λιγότερο ευνοημένων. Μέσα από την παρουσίαση της δεύτερης αρχής θα δούμε τον τρόπο με τον οποίο ο Rawls χρησιμοποιεί τα κίνητρα και την ισότητα και πώς αυτά καθορίζουν τα άτομα μιας ευτεταγμένης κοινωνίας. Στο δεύτερο μέρος θα εξεταστούν η κριτική την οποία ασκεί ο Cohen στην αρχή της διαφοράς του Rawls. Η βασική του θέση έγκειται στο ότι ο τρόπος με τον οποίο εφαρμόζει ο Rawls την αρχή της διαφοράς, με την αποδοχή άνισων κινήτρων, οδηγεί στην απόρριψη της ίδιας της αρχής. Δεν αμφισβητεί την ίδια την αρχή, αλλά θα προσπαθήσει να αναδείξει ότι η αρχή της διαφοράς αδυνατεί να δικαιολογήσει ότι τα άνισα κίνητρα αποτελούν χαρακτηριστικό μιας δίκαιης κοινωνίας. Το δεύτερο ζήτημα που θα μας απασχολήσει είναι η θέση του, ότι η διανεμητική δικαιοσύνη δεν μπορεί να στηρίζεται μόνο στη συμμόρφωση των ατόμων προς τους θεσμούς. Θα εξεταστεί η διαφωνία του Cohen με τον Rawls όσον αφορά την εκκίνηση από μια αρχική κατάσταση ισότητας και τη μετάβαση σε μια άνιση κατάσταση.
description: The aim of this research thesis is incentives and equality in J.Rawls and G.A.Cohen. In the first part will examine the two principles of justice introduced by Rawls, which constitute the major theme of the Theory of Justice. Of the two principles examined, we will focus our attention on the second principle. In particular, we will examine the difference principle, which endorses all and only those inequalities that are good for the worst off. Throughout the presentation of the second principle, we will see how Rawls uses incentives and equality and how those two define individuals in a well-ordered society. In the second part will examine Cohen's criticism of the Rawlsian difference principle. His main point is that Rawls's way of applying the difference principle, by accepting unequal incentives, leads to the rejection of the principle itself. Cohen does not question the principle itself but he will try to show that the difference principle fails to justify that unequal incentives are a characteristic of a just society. The second matter that will concern us is his thesis that distributive justice cannot be based solely on individuals' compliance with institutions. Finally, we will examine Cohen's disagreement with Rawls on starting from an initial equality state and moving to an unequal state.
The Causes of Peripheral Coronal Loop Contraction and Disappearance Revealed in a Magnetohydrodynamic Simulation of Solar Eruption
Creators: name: Wang, Juntao
name: Jiang, Chaowei
name: Yuan, Ding
name: Zou, Peng
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The phenomenon of peripheral coronal loop contraction during solar flares and eruptions, recently discovered in observations, gradually intrigues solar physicists. However, its underlying physical mechanism is still uncertain. One is Hudson (2000)'s implosion conjecture which attributes it to magnetic pressure reduction in the magnetic energy liberation core, while other researchers proposed alternative explanations. In previous observational studies we also note the disappearance of peripheral shrinking loops in the late phase, of which there is a lack of investigation and interpretation. In this paper, we exploit a full MHD simulation of solar eruption to study the causes of the two phenomena. It is found that the loop motion in the periphery is well correlated with magnetic energy accumulation and dissipation in the core, and the loop shrinkage is caused by a more significant reduction in magnetic pressure gradient force than in magnetic tension force, consistent with the implosion conjecture. The peripheral contracting loops in the late phase act as inflow to reconnect with central erupting structures, which destroys their identities and naturally explains their disappearance. We also propose a positive feedback between the peripheral magnetic reconnection and the central eruption.
description: 13 pages, 8 figures, accept by ApJ
Der Einfluss der Anionen auf die elektrochemische Silber- und Kupfer-Abscheidung auf Au(111) : Mikrokalorimetrische Untersuchungen zur Identifikation ladungsneutraler Adsorptionsprozesse
Creators: name: Frittmann, Stefan
Publisher: name: KIT Scientific Publishing
Year: 2019
Subjects: Elektrochemie
Kalorimetrie
Metallabscheidung
Reaktionsentropie
Peltier-Wärme
electrochemistry
calorimetry
electrodeposition
reaction-entropy
peltier heat

description: In der vorliegenden Arbeit wurde die Wärmeentstehung bei der elektrochemischen Abscheidung von Ag und Cu auf Au(111) Oberflächen gemessen, um Nebenprozesse der faradayschen Metallabscheidung zu identifizieren. Die Messung der Wärme erfolgte mittels elektrochemischer Mikrokalorimetrie. Die reversibel ausgetauschte Wärme entspricht gerade der Entropieänderung des Systems bei der Reaktion und beinhaltet die Beiträge aller ablaufenden Prozesse.
Quasigraded Lie Algebras and Modified Toda Field Equations
Creators: name: Skrypnyk, Taras V.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We construct a family of quasigraded Lie algebras that coincide with the deformations of the loop algebras in "principal" gradation and admit Kostant-Adler-Symes scheme. Using them we obtain new Volterra coupled systems and modified Toda field equations for all series of classical matrix Lie algebras $\mathfrak{g}$.
description: Published in SIGMA (Symmetry, Integrability and Geometry: Methods and Applications) at http://www.emis.de/journals/SIGMA/
Out-of-time-order correlations and the fine structure of eigenstate thermalisation
Creators: name: Brenes, Marlon
name: Pappalardi, Silvia
name: Mitchison, Mark T.
name: Goold, John
name: Silva, Alessandro
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Out-of-time-order correlators (OTOCs) have become established as a tool to characterise quantum information dynamics and thermalisation in interacting quantum many-body systems. It was recently argued that the expected exponential growth of the OTOC is connected to the existence of correlations beyond those encoded in the standard Eigenstate Thermalisation Hypothesis (ETH). We show explicitly, by an extensive numerical analysis of the statistics of operator matrix elements in conjunction with a detailed study of OTOC dynamics, that the OTOC is indeed a precise tool to explore the fine details of the ETH. In particular, while short-time dynamics is dominated by correlations, the long-time saturation behaviour gives clear indications of an operator-dependent energy scale $ω_{\textrm{GOE}}$ associated to the emergence of an effective Gaussian random matrix theory. We provide an estimation of the finite-size scaling of $ω_{\textrm{GOE}}$ for the general class of observables composed of sums of local operators in the infinite-temperature regime and found linear behaviour for the models considered.
description: Journal version
Η κατασκευή της ανήλικης παραβατικότητας: κριτική λογοαναλυτική προσέγγιση του επιστημονικό-θεσμικού Λόγου και του Λόγου των εθελοντών
Creators: name: Περπιράκη, Μαρία Κοσμά
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Aνήλικη παραβατικότητα
Yποκειμενικότητα
Kριτική Ψυχολογία- Φουκωική Ανάλυση Λόγου
Juvenile Delinquency
Subjectivity
Critical Psychology - Foucauldian Discourse Analysis

description: Η έρευνα αυτή έχει σαν στόχο την ανάλυση της κατασκευής της έννοιας της ανήλικης παραβατικότητας μέσω της σύγκρισης του επιστημονικο- θεσμικού Λόγου και του Λόγου των εθελοντών. Το ευρύτερο επιστημολογικό της πλαίσιο είναι ο Κονστρουκτιονισμός του Κοινωνικού Ρεαλισμού. Μεθοδολογικά συνεισφέρει στη χρήση της Φουκωικής Ανάλυσης Λόγου. Στο μάκρο- επίπεδο γίνεται ιστορική και γενεαλογική αναδρομή της κατασκευής της έννοιας καθώς και επισκόπηση των κυρίαρχων επιστημονικών Λόγων. Στο μικρο- επίπεδο αναλύονται αποσπάσματα ιστοσελίδων επίσημων θεσμών που ασχολούνται με ανήλικους παραβάτες και συγκρίνονται με τα δεδομένα είκοσι συνεντεύξεων εθελοντών των θεσμών αυτών. Η συζήτηση των συμπερασμάτων έδειξε- μεταξύ άλλων- πως τα δυο είδη Λόγου παρουσιάζουν αποκλίσεις αλλά και συγκλίσεις και πως η ανήλικη παραβατικότητα κατασκευάζεται ως μια υβριδική υποκειμενικότητα μεταξύ ταυτοτήτων όπως: θύμα- θύτης, και : υποκείμενα που χρήζουν στοργής- επιτήρησης
description: This paper aims to analyze the construction of the concept of juvenile delinquency through the comparison of the Scientific- Institutional Discourse and the Discourse of Volunteers. The broader epistemological context refers to the Constructionism of the Social Realism. Methodologically it contributes to the Foucauldian Discourse Analysis. At the macro – level a historical- genealogical construction of the concept is attempted, as well as a review of the dominant Scientific Discourses. At the micro- level , website texts of institutions relevant to juvenile delinquency are analyzed and compared to the texts of twenty interviews from volunteers in the field of juvenile delinquency. The conclusive conversation shows – among others- that the two kinds of Discourse appear divergent as well as convergent and that juvenile delinquency is constructed as a hybrid subjectivity among identities like: victim- offender, subjects in need of affection – surveillance
Rapidly driven nanoparticles: Mean first-passage times and relaxation of the magnetic moment
Creators: name: Denisov, S. I.
name: Sakmann, K.
name: Talkner, P.
name: Hänggi, P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We present an analytical method of calculating the mean first-passage times (MFPTs) for the magnetic moment of a uniaxial nanoparticle which is driven by a rapidly rotating, circularly polarized magnetic field and interacts with a heat bath. The method is based on the solution of the equation for the MFPT derived from the two-dimensional backward Fokker-Planck equation in the rotating frame. We solve these equations in the high-frequency limit and perform precise, numerical simulations which verify the analytical findings. The results are used for the description of the rates of escape from the metastable domains which in turn determine the magnetic relaxation dynamics. A main finding is that the presence of a rotating field can cause a drastic decrease of the relaxation time and a strong magnetization of the nanoparticle system. The resulting stationary magnetization along the direction of the easy axis is compared with the mean magnetization following from the stationary solution of the Fokker-Planck equation.
description: 24 pages, 4 figures
Negative ion photoelectron spectroscopy of cobalt tricarbonylnitrosyl
Creators: name: Turner, Nicholas James
Publisher: name: University of British Columbia
Year: 2008

description: Photoelectron spectra are reported for the Co(CO)₃NO⁻ and Co(CO)₂NO⁻ anions produced from cobalt tricarbonylnitrosyl in a pulsed valve source. The 355 nm spectra were obtained at a calculated electronic kinetic energy resolution of 96 meV using a newly constructed fixed-frequency negative ion photoelectron spectrometer, which is described. Electron affinities of 1.72 (±0.03) eV for Co(CO)₃NO and 1.73 (±0.03) eV for Co(CO)₂NO are obtained. The photoelectron spectrum for Co(CO)₃NO⁻ is consistent with a geometry change from a linear Co-N-O group in the neutral molecule to a bent configuration in the corresponding negative ion.
Εν διὰ δυοῖν στην ιστορική ανάγνωση. Συγκλίσεις και αποκλίσεις στο ιστορικό έργο των Ιωάννου Καντακουζηνού και Νικηφόρου Γρηγορά
Creators: name: Παπά, Τατιανή Αναστασίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Ιωάννης ΣΤ΄ Καντακουζηνός
Νικηφόρος Γρηγοράς
Ησυχαστική έριδα
John VI Cantacuzene
Nikephoros Gregoras
Hesychast controversy

description: Σκοπός της μεταπτυχιακής εργασίας ήταν η μελέτη συγκλίσεων και αποκλίσεων στην αποτύπωση γεγονότων της ησυχαστικής έριδας στο ιστορικό έργο των Ιωάννου Καντακουζηνού και Νικηφόρου Γρηγορά. Αρχικά, παρουσιάσαμε εν περιλήψει το ιστορικό πλαίσιο της εποχής των συγγραφέων -τέλη του 13ου έως μέσα του 14ου αιώνα- και των απαρχών της έριδας του Ησυχασμού. Επιπλέον, αναφέραμε στοιχεία σχετικά με τον βίο και την εργογραφία των δύο συγγραφέων. Εξετάσαμε τη μεταξύ τους σχέση, η οποία ξεκίνησε ως μια σχέση ευγνωμοσύνης και κατέληξε σε ιδεολογική αντιπαλότητα, εξαιτίας της ανάμειξής τους στην ησυχαστική έριδα. Στη συνέχεια, μελετήσαμε το πώς ένα ιστορικό γεγονός, εν προκειμένω η έριδα του Ησυχασμού, παρουσιάζεται μέσα από δύο συγγραφείς οι οποίοι πρέσβευαν αντίπαλες θεολογικές απόψεις. Πραγματοποιήσαμε την εν λόγω έρευνα με την ενδεικτική -και όχι αποδεικτική- μελέτη του τρόπου αναφοράς σε γεγονότα της έριδας του Ησυχασμού και σε πρόσωπα που διαδραμάτισαν κάποιο ρόλο. Επιπλέον, μελετήσαμε αναφορές στους ομοϊδεάτες αλλά και στους αντιπάλους του καθενός συγγραφέα. Ολοκληρώσαμε την εργασία με την παράθεση καταληκτικών σχολίων, όπως αυτά προέκυψαν από την έρευνα του θέματος, και παρουσιάσαμε τη βιβλιογραφία.
description: The aim of this postgraduate thesis was the study of convergences and divergences in the hesychast controversy facts, depicted in the historical work of John Cantacuzene and Nikephoros Gregoras. Initially, we outlined the historical context of the writers' era -late 13th to mid 14th century- and the beginnings of the hesychast controversy. In addition, we provided information on the life and work of the two writers. We examined the relationship between them, which started out as a relationship of gratitude and ended in ideological rivalry, because of their involvement in the hesychast controversy. Then, we studied how a historical fact, in this case the hesychast controversy, is presented through the writers’ opposing theological views. We conducted this research with an indicative -and not restrictive- study of how the authors refer to events of the hesychast controversy and to people who got involved. In addition, we studied references to like-minded individuals and to each writer's opponents. Finally, we completed the thesis by quoting concluding remarks, as they emerged from our research and presented the bibliography.
Correlation Structures of Correlated Binomial Models and Implied Default Distribution
Creators: name: Mori, S.
name: Kitsukawa, K.
name: Hisakado, M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Statistical Finance (q-fin.ST)
subject: FOS: Physical sciences
subject: FOS: Economics and business

description: We show how to analyze and interpret the correlation structures, the conditional expectation values and correlation coefficients of exchangeable Bernoulli random variables. We study implied default distributions for the iTraxx-CJ tranches and some popular probabilistic models, including the Gaussian copula model, Beta binomial distribution model and long-range Ising model. We interpret the differences in their profiles in terms of the correlation structures. The implied default distribution has singular correlation structures, reflecting the credit market implications. We point out two possible origins of the singular behavior.
description: 16 pages, 7 figures
Degradation of electron-hole entanglement by spin-orbit coupling
Creators: name: Bardarson, J. H.
name: Beenakker, C. W. J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Electron-hole pairs produced by tunneling in a degenerate electron gas lose their spin entanglement by spin-orbit coupling, which transforms the fully entangled Bell state into a partially entangled mixed density matrix of the electron and hole spins. We calculate the dependence of the entanglement (quantified by the concurrence) on the spin-orbit coupling time tau_so and on the diffusion time (or dwell time) tau_dwell of electron and hole in the conductors (with conductances >> e^2/h) at the two sides of the tunnel barrier (with conductance << e^2/h). The entanglement disappears when the ratio tau_dwell/tau_so exceeds a critical value of order unity. The results depend on the type of conductor (disordered wire or chaotic quantum dot), but they are independent of other microscopic parameters (number of channels, level spacing). Our analytical treatment relies on an "isotropy approximation" (no preferential basis in spin space), which allows us to express the concurrence entirely in terms of spin correlators. We test this approximation for the case of chaotic dynamics with a computer simulation (using the spin kicked rotator) and find good agreement.
description: 8 pages, 6 figures. v2. Appendix A expanded, figures added
Grammatical elicitation: Epistemic indefinites
Creators: name: Kipkoech, Linus
name: Bossi, Madeline
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: sgc

description: One .mp4 file and one .pdf file. Elicitation of syntactic properties of epistemic indefinites with a focus on co-occurrence with possession and different singulative suffixes.
Η υποστήριξη αναγνωστικών δυσκολιών στο μάθημα της Γερμανικής ως δεύτερης ξένης γλώσσας στο ελληνικό Γυμνάσιο: Αξιολόγηση, παρέμβαση και οφέλη
Creators: name: Παναγιωτίδου, Παρασκευή Δαμιανού
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Αναγνωστικές δυσκολίες
Αξιολόγηση
Παρέμβαση
Reading difficulties
Assessment
Intervention

description: Οι μαθησιακές δυσκολίες συνιστούν μία από τις συχνότερες διαταραχές μάθησης που συναντώνται στο χώρο της εκπαίδευσης. Τα κυριότερα προβλήματα που αντιμετωπίζουν οι μαθητές αυτοί αφορούν στην ανάγνωση και συγκεκριμένα στην αποκωδικοποίηση, στην ευχέρεια και στην κατανόηση. Η διδασκαλία και η εκμάθηση μίας ξένης γλώσσας γίνονται πιο σύνθετες, όταν οι μαθητές παρουσιάζουν μαθησιακές δυσκολίες. Η παρούσα διπλωματική εργασία έχει ως στόχο την παράθεση τεχνικών άτυπης αξιολόγησης για τον εντοπισμό μαθησιακών αδυναμιών στην ανάγνωση στο μάθημα των Γερμανικών στη δευτεροβάθμια εκπαίδευση, καθώς και την παρουσίαση αποτελεσματικών στρατηγικών υποστήριξης-παρέμβασης για τη βελτίωση αυτών των αναγνωστικών αδυναμιών με τη βοήθεια του εκπαιδευτικού των Γερμανικών της τυπικής εκπαίδευσης.
description: Learning difficulties are the most frequent learning disorders encountered in the education area. Reading and more particularly decoding, as well as fluency and understanding form some of the main problems that these students cope with. Teaching a foreign language becomes however even more difficult when students face learning difficulties (LD). The present thesis aims at presenting informal (atypical) assessment techniques in order to detect reading deficiencies in the lesson of German in secondary education; moreover, the setting out of effective support - intervention strategies for improving these reading deficiencies with the assistance of a general (typical) education German teacher.
The use of technology and Web 2.0 tools in English language teaching and learning
Creators: name: Πάλλη, Σοφία Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Τεχνολογία
Αγγλικά ως ξένη γλώσσα
Εργαλεία Web 2.0
Εκπαίδευση
Technology
English as a foreign language (EFL)
Web 2.0 tools
Education

description: Η ταχεία εξέλιξη των ψηφιακών τεχνολογιών, των πολυμέσων και των κοινωνικών δικτύων τα τελευταία χρόνια, έχει αλλάξει δραματικά τη ζωή μας. Διάφοροι ερευνητές (Hwang, Kressler & Francesco, 2004) πιστεύουν ότι αυτή η ψηφιακή εξέλιξη είχε επίσης θετικό αντίκτυπο και στην εκπαίδευση, καθώς επιτρέπει στους μαθητές να βελτιώσουν την επικοινωνία και τις γλωσσικές τους δεξιότητές. Η παρούσα εργασία εξετάζει τη σημασία και την αποτελεσματικότητα της χρήσης της τεχνολογίας ως μέσου διδασκαλίας της αγγλικής ως ξένης γλώσσας και εστιάζει συγκεκριμένα στην ανάδειξη των διαφορετικών προσεγγίσεων και τεχνικών που μπορούν να βοηθήσουν τους μαθητές να βελτιώσουν τις γλωσσικές τους δεξιότητες μέσω της χρήσης της τεχνολογίας. Μεταξύ αυτών των τεχνικών είναι και τα εργαλεία Web 2.0, τα οποία παίζουν σημαντικό ρόλο στη διαδικασία διδασκαλίας και εκμάθησης της αγγλικής ως ξένης γλώσσας όταν ενσωματώνονται στην τάξη (Golonka et al., 2014). Το πειραματικό μέρος της μελέτης, που ενσωματώνει τόσο ποσοτικά όσο και ποιοτικά εργαλεία, επιχειρεί να εντοπίσει τις στάσεις δύο ομάδων μαθητών της δευτεροβάθμιας εκπαίδευσης σχετικά με τη χρήση ψηφιακών τεχνολογιών στο μάθημα της αγγλικής γλώσσας καθώς και τη στάση των εκπαιδευτικών απέναντι σε αυτά τα εκπαιδευτικά εργαλεία. Τα ευρήματα δείχνουν μια θετική στάση τόσο των εκπαιδευτικών όσο και των μαθητών αναφορικά με τη χρήση της τεχνολογίας στο μάθημα της αγγλικής γλώσσας.
description: The rapid advancement of digital technologies, multimedia and social networks in the past few years, has dramatically changed our lives. Several researchers (Hwang, Kressler & Francesco, 2004) believe that this digital evolution has had a significantly positive impact on education as well, as it enables students to improve their communication and language skills. The present study examines the importance and the effectiveness of utilizing technology as a means of teaching English as a foreign language (EFL) and it, specifically, focuses on the discussion of the different approaches and techniques which can assist English language students to improve their language skills by using technology. Among these techniques are the Web 2.0 tools, which play a vital role in the EFL teaching and learning process when incorporated in the classroom (Golonka et al., 2014). The experimental part of the study, which incorporates both quantitative and qualitative instruments, attempts to identify the attitudes of two groups of Greek secondary school students towards the use of digital technologies in the EFL classroom as well as their teachers’ stance towards these teaching tools. The findings point to a positive stance of both teachers and students regarding the use of technology in the English classroom.
Indian Control of Indian Education: The Path of the Upper Nicola Band
Creators: name: Charters-Voght, Opal
Publisher: name: Canadian Journal of Native Education
Year: 2021

description: This paper examines how one band, the Upper Nicola Band, came to terms with Indian Con­trol of Indian Education. An overview of the history of the education of these people and the Indian Control of Indian Education policy provide some background as to why it is im­portant for the Band to strive for local control of its education. The writer of this paper, who was to become the principal of the new band school, led a structured experiences workshop on May 15,16, and 17,1990 in which band members were encouraged to participate in thinking about where they had been, where they are now, and where they wanted to be. Through structured activities, band members developed their own educational philosophy, goals, and action plans. The workshop is described in detail in this article. Where appropri­ ate, the data provided by the participants are analyzed in light of the Indian Control of In­dian Education policy. The outcomes of the workshop on education at the band school during the subsequent year are highlighted.
description: Canadian Journal of Native Education, Vol. 18 No. 2 (1991)
Strong decays of heavy-light mesons in a chiral quark model
Creators: name: Zhong, Xian-hui
name: Zhao, Qiang
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We carry out a systematic study of the heavy-light meson strong decays in a chiral quark model. For the $S$-wave vectors ($D^*(2007)$, $D^{*\pm}(2010)$), $P$-wave scalars ($D^*_0(2400)$, $B^*_0(5730)$) and tensors ($D^*_2(2460)$, $D^*_{s2}(2573)$), we obtain results in good agreement with the experimental data. For the axial vectors $D_1(2420)$ and $D_1^\prime(2430)$, a state mixing scheme between $1^1P_1$ and $1^3P_1$ is favored with a mixing angle $ϕ\simeq-(55\pm 5)^\circ$, which is consistent with previous theoretical predictions. The same mixing scheme also applies to $D_{s1}(2460)$ and $D_{s1}(2536)$ that accounts for the narrow width of the $D_{s1}(2536)$ and its dominant decay into $D^*K$. For $B_1(5725)$ and $B_1^\prime(5732)$, such a mixing explains well the decay width of the former but leads to an even broader $B_1^\prime(5732)$. Predictions for the strange-bottom axial vectors are also made. For the undetermined meson $D^*(2640)$, we find that they fit in well the radially excited state $2^3S_1$ according to its decay mode. The newly observed $D^*_{sJ}(2860)$ strongly favors the $D$-wave excited state $1^3D_3$. For $D^*_{sJ}(2632)$ and $D^*_{sJ}(2690)$, we find they are difficult to fit in any $D_s$ excitations in that mass region, if the experimental data are accurate. Theoretical predictions for decay modes of those unobserved states as multiplets of 2S and 1D waves are also presented, which should be useful for further experimental search for those states.
description: 14 pages, 6 figures,to appear in PRD
Η επίδραση του ιού των ανθρωπίνων θηλωμάτων στον καρκίνο του λάρυγγα
Creators: name: Φωτιάδου, Στέλλα Φωτίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Καρκίνος του λάρυγγα
Λαρυγγικά θηλώματα
Ιός των ανθρωπίνων θηλωμάτων
Laryngeal cancer
Laryngeal papillomas
Human papillomavirus

description: Ο καρκίνος του λάρυγγα είναι ο δεύτερος πιο συχνός κακοήθης όγκος κεφαλής και τραχήλου παγκοσμίως. Οι επιπλοκές του σε άντρες και γυναίκες είναι σημαντικές. Οι αιτιολογικοί του παράγοντες περιλαμβάνουν, μεταξύ άλλων, και περιβαλλοντικούς παράγοντες. Μελέτες έχουν δείξει ότι η μόλυνση από τον ιό των ανθρωπίνων θηλωμάτων (HPV) μπορεί να είναι ένας παράγοντας υψηλού κινδύνου για τον καρκίνο του λάρυγγα. Πρόσφατες έρευνες αναδεικνύουν την πιθανή συσχέτιση του ιού με την αιτιολογία και την ανάπτυξη καλοήθων βλαβών και του καρκίνου του λάρυγγα. Συγκεκριμένα, στην παρούσα μελέτη αναλύεται η επίδραση του ιού στον κακοήθη μετασχηματισμό των λαρυγγικών επιθηλιακών κυττάρων και η συσχέτιση του με την επιβίωση και την πρόγνωση των ασθενών. Ο μηχανισμός της καρκινογένεσης χρειάζεται να διερευνηθεί περαιτέρω, ώστε να υπάρξει μια ταχεία και αποτελεσματική μέθοδος ανίχνευσης του ιού HPV για την αποτελεσματική πρόληψη της εμφάνισης του καρκίνου του λάρυγγα και τον έλεγχο της ανάπτυξής του στο μέλλον
description: Laryngeal cancer is the second most frequent malignant tumor of head and neck worldwide. Its complications are important in both men and women. The etiological factors are, among others, environmental factors. Researches indicate that the infection by human papillomavirus HPV could be a high risk factor for the development of laryngeal cancer. Recent studies showed a possible role of the virus in the etiology and the development of benign and malignant tumors. Particularly, in the present study we analyze the effect of the virus HPV on the oncogenic transformation of the laryngeal epithelial cells, the prognosis and the survival of patients. The procedure of carcinogenesis needs to be more investigated, in order to find a fast and effective method of detection of the virus HPV. As a result, researchers could prevent the presence and the development of cancer of the larynx in the future
description: Σε συνεργασία με τα τμήματα Ιατρικής (Δημοκρίτειο Πανεπιστήμιο Θράκης) και Πολιτικών Μηχανικών T.E. (Αλεξάνδρειο Τ.Ε.Ι. Θεσσαλονίκης)
Characterizing mass, momentum, energy and metal outflow rates of multi-phase galactic winds in the FIRE-2 cosmological simulations
Creators: name: Pandya, Viraj
name: Fielding, Drummond B.
name: Anglés-Alcázar, Daniel
name: Somerville, Rachel S.
name: Bryan, Greg L.
name: Hayward, Christopher C.
name: Stern, Jonathan
name: Kim, Chang-Goo
name: Quataert, Eliot
name: Forbes, John C.
name: Faucher-Giguère, Claude-André
name: Feldmann, Robert
name: Hafen, Zachary
name: Hopkins, Philip F.
name: Kereš, Dušan
name: Murray, Norman
name: Wetzel, Andrew
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We characterize mass, momentum, energy and metal outflow rates of multi-phase galactic winds in a suite of FIRE-2 cosmological "zoom-in" simulations from the Feedback in Realistic Environments (FIRE) project. We analyze simulations of low-mass dwarfs, intermediate-mass dwarfs, Milky Way-mass halos, and high-redshift massive halos. Consistent with previous work, we find that dwarfs eject about 100 times more gas from their interstellar medium (ISM) than they form in stars, while this mass "loading factor" drops below one in massive galaxies. Most of the mass is carried by the hot phase ($>10^5$ K) in massive halos and the warm phase ($10^3-10^5$ K) in dwarfs; cold outflows ($<10^3$ K) are negligible except in high-redshift dwarfs. Energy, momentum and metal loading factors from the ISM are of order unity in dwarfs and significantly lower in more massive halos. Hot outflows have $2-5\times$ higher specific energy than needed to escape from the gravitational potential of dwarf halos; indeed, in dwarfs, the mass, momentum, and metal outflow rates increase with radius whereas energy is roughly conserved, indicating swept up halo gas. Burst-averaged mass loading factors tend to be larger during more powerful star formation episodes and when the inner halo is not virialized, but we see effectively no trend with the dense ISM gas fraction. We discuss how our results can guide future controlled numerical experiments that aim to elucidate the key parameters governing galactic winds and the resulting associated preventative feedback.
description: Accepted to MNRAS with minor revisions, main body is 25 pages with 14 figures
Μοντελοποίηση αφρών αλουμινίου σε στατικά και κρουστικά φορτία με την μέθοδο των πεπερασμένων στοιχείων
Creators: name: Τέγος, Χρήστος Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Αφρός αλουμινίου
Μέθοδος πεπερασμένων στοιχείων
Μονοαξονική θλίψη
Κρούση υψηλής ταχύτητας,
Αλγόριθμος Voronoi
Μοντέλο Deshpande-Fleck
Aluminum foam
FEM analysis
Uniaxial compression
High-velocity impact
Voronoi algorithm
Deshpande-Fleck model

description: Σκοπός αυτής της εργασίας αποτέλεσε η μοντελοποίηση αφρών αλουμινίου τόσο σε στατική καταπόνηση θλίψης όσο και σε κρούση υψηλής ταχύτητςα με την μέθοδο των πεπερασμένων στοιχείων. H δυσκολία για την εξακρίβωση των μηχανικών ιδιοτήτων των μεταλλικών αφρών έγκειται στις ιδιαιτερότητες της σύνθετης πορώδους γεωμετρίας τους. Η αρχική πορώδες γεωμετρία των αφρών αλουμινίου που χρησιμοποιήθηκε και στις δύο αναλύσεις, κατασκευάστηκε με τον αλγόριθμο Voronoi. Επίσης στην ανάλυση της κρούσης, χρησιμοποιήθηκε επιπλέον το ισότροπο μοντέλο των Deshpande-Fleck για την προσομοίωση του αφρού. Τα αποτελέσματα που προέκυψαν από όλες τις προσομοιώσεις συγκρίθηκαν με τα αντίστοιχα πειραματικά. Χρήσιμα συμπεράσματα εξήχθησαν από τις μοντελοποιήσεις και από την σύγκριση των αποτελεσμάτων των επιλύσεων με τα πειράματα
description: Τhe purpose of this thesis was the simulation of aluminum foams under static compression as well as high impact loads using the finite element method (FEM). The identification of mechanical properties of metal foams is difficult because of their complex porous geometry. The initial porous geometry of the aluminum foams used on both analyses, was generated based on Voronoi algorithm. Moreover, the constitutive isotropic Deshpande-Fleck model was used on impact analysis of the foams. The results of all simulations were compared with the experimental ones. Useful conclusions were reached by the simulations and the comparison between FE results and experiments
Nature of the orbital angular momentum (OAM) fields in a multilayered fiber
Creators: name: Bhandari, Ramesh
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We provide a theoretical analysis of the nature of the orbital angular momentum (OAM) modal fields in a multilayered fiber, such as the step-index fiber and the ring-core fiber. In a detailed study of the vector field solutions of the step-index fiber (in the exponential basis), we discover that the polarization-induced field component is a modified scalar OAM field (as opposed to a standard OAM scalar field) with a shifted intensity pattern in the weakly guiding approximation (WGA); the familiar intensity donut pattern is reduced or increased in radius depending upon whether it is a case of spin-alignment or anti-alignment with the OAM. Such a shift in the intensity pattern appears to be a general feature of the field of a multilayered fiber as seen from an extension to the ring-core fiber. Additionally, we derive a general expression for the polarization-correction to the scalar propagation constant, which includes, for the first time, the contribution of the polarization-induced field. All the analytic expressions are illustrated and validated numerically with application to a step-index fiber, whose analytic solutions are well-known.
description: 17 pages, 3 figures
Semantic and grammatical elicitation: Epistemic indefinites and Weak Crossover effects
Creators: name: Yegon, Kiplangat
name: Bossi, Madeline
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: sgc

description: One .mp4 file and one .pdf file. Elicitation of scopal properties of epistemic indefinites. Elicitation of Weak Crossover obviation in monoclausal and biclausal sentences.
title: Bouvardia :
title: Directrices para la ejecución del examen de la distinción, la homogeneidad y la estabilidad.
titleType: Subtitle
Creators: name: International Union For The Protection Of New Varieties Of Plants,
Publisher: name: International Union for the Protection of New Varieties of Plants,
Year: 0
Subjects: Bouvardia
Group identity.
New Varieties of Plants

description: La finalidad de estas directrices (“directrices de examen”) es elaborar los principios que figuran en la Introducción General (documento TG/1/3) y sus documentos TGP conexos, con objeto de que sirvan de orientación práctica y detallada para el examen armonizado de la distinción, homogeneidad y estabilidad (DHE) y en particular, para identificar los caracteres apropiados para el examen DHE y producir descripciones armonizadas de variedades.
Eccentric Binary Neutron Star Search Prospects for Cosmic Explorer
Creators: name: Lenon, Amber K.
name: Brown, Duncan A.
name: Nitz, Alexander H.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We determine the ability of Cosmic Explorer, a proposed third-generation gravitational-wave observatory, to detect eccentric binary neutron stars and to measure their eccentricity. We find that for a matched-filter search, template banks constructed using binaries in quasi-circular orbits are effectual for eccentric neutron star binaries with $e_{7} \leq 0.004$ ($e_{7} \leq 0.003$) for CE1 (CE2), where $e_7$ is the binary's eccentricity at a gravitational-wave frequency of 7~Hz. We show that stochastic template placement can be used to construct a matched-filter search for binaries with larger eccentricities and construct an effectual template bank for binaries with $e_{7} \leq 0.05$. We show that the computational cost of both the search for binaries in quasi-circular orbits and eccentric orbits is not significantly larger for Cosmic Explorer than for Advanced LIGO and is accessible with present-day computational resources. We investigate Cosmic Explorer's ability to distinguish between circular and eccentric binaries. We estimate that for a binary with a signal-to-noise ratio of 8 (800), Cosmic Explorer can distinguish between a circular binary and a binary with eccentricity $e_7 \gtrsim 10^{-2}$ ($10^{-3}$) at 90% confidence.
description: 8 pages, 7 figures, supplemental materials at https://github.com/gwastro/cosmic-explorer-bns-eccentricity, revised to match version accepted by PRD
Mixtures of Bose gases under rotation
Creators: name: Bargi, S.
name: Christensson, J.
name: Kavoulakis, G. M.
name: Reimann, S. M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We examine the rotational properties of a mixture of two Bose gases. Considering the limit of weak interactions between the atoms, we investigate the behavior of the system under a fixed angular momentum. We demonstrate a number of exact results in this many-body system.
description: 4 pages, RevTex, 6 figures
Diagrammatic Differentiation for Quantum Machine Learning
Creators: name: Toumi, Alexis
name: Yeung, Richie
name: de Felice, Giovanni
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Machine Learning (cs.LG)
subject: Category Theory (math.CT)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We introduce diagrammatic differentiation for tensor calculus by generalising the dual number construction from rigs to monoidal categories. Applying this to ZX diagrams, we show how to calculate diagrammatically the gradient of a linear map with respect to a phase parameter. For diagrams of parametrised quantum circuits, we get the well-known parameter-shift rule at the basis of many variational quantum algorithms. We then extend our method to the automatic differentation of hybrid classical-quantum circuits, using diagrams with bubbles to encode arbitrary non-linear operators. Moreover, diagrammatic differentiation comes with an open-source implementation in DisCoPy, the Python library for monoidal categories. Diagrammatic gradients of classical-quantum circuits can then be simplified using the PyZX library and executed on quantum hardware via the tket compiler. This opens the door to many practical applications harnessing both the structure of string diagrams and the computational power of quantum machine learning.
description: In Proceedings QPL 2021, arXiv:2109.04886
Synthesis of Limonoid and Steroidal intermediates
Creators: name: Richardson, Scott Rowand
Publisher: name: University of British Columbia
Year: 2008

description: The cyclopentyl intermediate 4 is an easily obtained, highly enantiopure starting material for the synthesis of numerous triterpenoids. Prepared from (+)-endo-3-bromocamphor (2) in a four-step sequence, 4 has been converted into two advanced triterpenoid intermediates. In an eleven-step sequence 4 was transformed into the bicyclic intermediate (42) that could be used in an enantiospecific approach to the limonoids. The enone 42 was subsequently dialkylated in a regio- and stereoselective manner to produce the intermediate 45. Removal of the silyl protecting group followed by oxidation and acid-catalysed annulation produced the tricyclic enone 53. Structure 53 represents a highly advanced ent-limonoid intermediate with correct relative and absolute stereochemistry with obvious similarities to limonoids such as ent-azadirone (6). Further investigations illustrated 4's utility in the synthesis of the steroidal hydrindane system. Using an analogous pathway 4 was again converted to a bicyclic enone 104 in eight steps. Regiospecific alkylation followed by medium pressure hydrogenation and epimerization yielded the hydrindane 110. Extensive NMR analysis of this compound was used to provide conclusive evidence of 110's absolute stereochemistry. This route is therefore potentially useful in an approach to natural products such as 1α, 25-Dihydroxyvitamin D₃ (58).
Unified theory for Goos-Hänchen and Imbert-Fedorov effects
Creators: name: Li, Chun-Fang
Publisher: name: arXiv
Year: 2006
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: A unified theory is advanced to describe both the lateral Goos-Hänchen (GH) effect and the transverse Imbert-Fedorov (IF) effect, through representing the vector angular spectrum of a 3-dimensional light beam in terms of a 2-form angular spectrum consisting of its 2 orthogonal polarized components. From this theory, the quantization characteristics of the GH and IF displacements are obtained, and the Artmann formula for the GH displacement is derived. It is found that the eigenstates of the GH displacement are the 2 orthogonal linear polarizations in this 2-form representation, and the eigenstates of the IF displacement are the 2 orthogonal circular polarizations. The theoretical predictions are found to be in agreement with recent experimental results.
description: 15 pages, 3 figures
Gauss-Bonnet cosmologies: crossing the phantom divide and the transition from matter dominance to dark energy
Creators: name: Leith, Ben M.
name: Neupane, Ishwaree P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Dark energy cosmologies with an equation of state parameter $w$ less than -1 are often found to violate the null energy condition and show unstable behaviour. A solution to this problem may require the existence of a consistent effective theory that violates the null energy condition only momentarily and does not develop any instabilities or other pathological features for a late time cosmology. A model which incorporates a dynamical scalar field $ϕ$ coupled to the quadratic Riemann invariant of the Gauss-Bonnet form is a viable proposal. Such an effective theory is shown to admit nonsingular cosmological evolutions for a wide range of scalar-Gauss-Bonnet coupling. We discuss the conditions for which our model yields observationally supported spectra of scalar and tensor fluctuations, under cosmological perturbations. The model can provide a reasonable explanation for the transition from matter dominance to dark energy regime and the late time cosmic acceleration, offering an interesting testing ground for investigations of the cosmological modified gravity.
description: 44 pages, several eps figures; section 2 expanded with discussions on cosmological/astrophysical constraints, final in JCAP
Acoustic emission from the crystallization of potassium bromide doped with lead
Creators: name: Cook, Adrian P.
Publisher: name: University of British Columbia
Year: 2008

description: Simultaneous optical and acoustic information was used to elucidate the mechanism that causes acoustic emission (AE) during growth of potassium bromide (KBr) crystals. The generation mechanism postulated here is one of inter-crystal interaction. AE was used to monitor the growth of different crystal structures of KBr grown with varying degrees of lead (Pb) dopant (0-32000 ppm). Digital images were collected simultaneously at magnifications up to x75. Integrated AE profiles and image whitening curves were calculated. Best agreement between these was found for the crystal growth of the dendritic form of KBr (4080-8120 ppm Pb dopant), and the doped forms of 12210 ppm Pb and above. The dendritic form of KBr observed between 4080 and 8120 ppm Pb consisted of finger-like needles that grew outward from the crystallizing solution. Scanning electron microscopy showed these fingers to consist of contiguous chains of tiny (< 25 μm dia.) octahedra. This microscopic structure provided many potential sources of emission. The total AE observed per gram of crystals produced during the growth of the different KBr morphologies was found to vary in a reproducible manner over 60 experiments. The dendritic form of KBr exhibited 10 times the acoustic emission per gram of crystals produced compared with the undoped (cubic) form. The mass of crystals grown for individual experiments was 0.004-0.212 g. AE was able to reliably follow the growth of these very small masses of crystals whose morphologies consisted of clusters of crystals in intimate contact. A confirmatory mechanistic study was carried out using ammonium chloride (NH₄Cl) which is known to produce classic dendritic growth. In contrast to the clusters of tiny microcrystals observed for the dendritic form of KBr, one would not expect the growth of the single crystal branches of NH₄Cl to exhibit acoustic emission, as there is no means to generate AE by the inter-crystal interaction mechanism. Single branch fracture is possible but rare. Experimental results showed very limited emission from NH₄Cl, and thus supported the hypothesis of inter-crystal interaction. Primary nucleation could not be detected acoustically. The end of crystal growth was acoustically determinable. The AE associated with the growth of the dendritic form of KBr finished abruptly when the maximum image whiteness was reached. The acoustic waveforms detected during the growth of the KBr morphologies were compared with artificially produced signals of bulk fracture and crystal impact. Acoustic waveform analysis showed these classes of signals to be distinguishable.