cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Curricular Competence through Learners' Cafeteria
Creators: name: Garg, HK
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 390102
subject: Curriculum and pedagogy theory and development
classificationCode: 390113
subject: Science, technology and engineering curriculum and pedagogy
classificationCode: 390303
subject: Higher education
classificationCode: 390305
subject: Professional education and training

description: Quality is never an accident; it is always a result of high intention, sincere efforts, intelligent direction, and skillful execution; it represents the wise choice of many alternatives.Curricular flexibility and learners’ mobility is an issue that deserves an immediate attention. In order to
confer with some degree of flexibility to learners, we ought to delineate course span in terms of credit
hours with a minimum as well as a maximum permissible extent of time for a learner to complete the
program of study. These requirements can be addressed by introducing credit based courses and credit
accumulation.... Read more.
Improved Superconducting Properties in Bulk MgB2 Prepared by High Energy Milling of Mg and B Powder
Creators: name: Wu, Y. F.
name: Lu, Y. F.
name: Yan, G.
name: Li, J. S.
name: Feng, Y.
name: Tang, H. P.
name: Chen, S. K.
name: Xu, H. L.
name: Li, C. S.
name: Zhang, P. X.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The MgB2 bulks were prepared by high energy milling of Mg and B powder. The correlations among milling times, microstructure and superconducting properties were investigated in MgB2 bulks. Samples were characterized by x-ray diffraction (XRD), energy dispersive spectrometry (EDX) and scanning electron microscope (SEM), and the magnetization properties were examined by a Superconducting quantum interfere device (SQUID) magnetometer. It showed that the high energy milling is an effective approach to get fine crystalline (40-100nm) bulk MgB2 with good grain connectivity and high Jc performance. The critical current density reaches to 2.0X10E6A/cm2 at 15K and 0.59T, 5.7X10E5A/cm2 at 2T and 3.0X10E4A/cm2 at 5T.
description: 12 pages, 6 figures
Literatura testimonial en Chile, Uruguay y Argentina, 1970-1990
Creators: name: Strejilevich, Nora
Publisher: name: University of British Columbia
Year: 2009

description: The vast corpus of testimonial literature that has been produced in Latin America since the 1960s, reaches a peak in the 1970s and continues to the present day. The dissertation investigates this phenomenon in Chile, Argentina and Uruguay, through the examination of a group of literary works that range from personal testimonies to documentary novels. This genre is defined by a pact of truth established with the reader in relation to the experience that is being narrated. The first chapter describes testimony as a collective discourse that responds to a counter-hegemonic cultural project which opposes the doctrine of “National Security” that prevailed in the region during that period. Chapter II presents the guidelines that will frame the dissertation, preparing a synthesis of several existing models based upon diverse criteria: social, semantic, syntactic and functional. In establishing the relationship between narration, history and testimony, the thesis emphasizes that narrative techniques are needed in order to tell any story, even those which were not developed with a literary purpose. Testimony is not an exception, because it transforms experience into stories, applying to remembrances the structure of a plot. The texts are organized accordingly, taking into account the types of narrativization employed, and this taxonomy is connected with the reception theory and the contributions of the social criticism, in order to provide a comprehensive understanding of the genre. Chapters III, IV and V examine various works from the three countries mentioned above, establishing a connection between the historic-social situation, the collective symbols, the artistic production of that period, and testimonies. The conclusion suggests that the return of Latin American literature to its hybrid origins implies transformations such as the democratization of writing and the disappearance of the author as the centre of the literary production. It also claims that this corpus provokes a change in the direction of contemporary writing in those countries, generating a necessary catharsis and a new elaboration of a fragmented collective identity.
Γλωσσική εκμάθηση με χρήση κινητού τηλεφώνου: το παράδειγμα του λογισμικού Προσομοίωσης Ispring Talkmaster
Creators: name: Αδαμάκου, Ευγενία Σωτηρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: Υποβοηθούμενη Γλωσσική Εκμάθηση από Κινητό Τηλέφωνο
Διερευνητική Μελέτη Περίπτωσης
iSpring TalkMaster
Mobile Assisted Language learning
Exploratory Case Study

description: Η εποχή μας χαρακτηρίζεται από ραγδαίες τεχνολογικές εξελίξεις και ταχύτατες μεταβολές. Η ανάπτυξη του διαδικτύου και η ψηφιοποίηση της πληροφορίας έχουν επηρεάσει την ανθρώπινη καθημερινότητα και ως αποτέλεσμα και την εκπαίδευση. Η παρούσα διπλωματική εργασία αφορά την υποβοηθούμενη γλωσσική εκμάθηση από υπολογιστή (CALL) και κινητό τηλέφωνο (MALL) καθώς και την προσομοίωση. Πρόκειται για μια διερευνητική μελέτη περίπτωσης στην οποία συμμετείχαν 30 μαθητές/τριες Γυμνασίου της Θεσσαλονίκης, οι οποίοι/ες κλήθηκαν να ολοκληρώσουν ένα πιλοτικό μάθημα γλωσσικής διδασκαλίας μέσω των κινητών τους τηλεφώνων. Το συγκεκριμένο μάθημα δημιουργήθηκε με βάση το λογισμικό προσομοίωσης iSpring TalkMaster και έχει τη μορφή διαλόγου ανάμεσα στον/στη μαθητή/τρια και σε έναν ψηφιακό χαρακτήρα. Βασικός στόχος της έρευνας είναι η εξέταση του υπό συζήτηση αντικειμένου μέσα από τη διερεύνηση των απόψεων μαθητών/τριών μέσω ερωτηματολογίων μετά την ολοκλήρωση του μαθήματος και η ανάδειξη της σημασίας για περαιτέρω έρευνα πάνω σε αυτό το πεδίο
description: Our times are characterized by rapid technological advancements and changes. The development of the Internet and the digitization of information have influenced human society and, as a result, education. This dissertation deals with computer assisted language learning (CALL) and mobile assisted language learning (MALL) as well as simulation. It is an exploratory case study with a sample of 30 Greek high school students who were invited to complete a pilot lesson on language teaching via their mobile phones. This lesson was created via iSpring TalkMaster simulation software and has the form of a dialogue between the student and a digital character. The main objective of the research is to examine students' views on the lesson, through questionnaires and to encourage further research on this field
Το οργανωμένο έγκλημα στην ελληνική νομολογία
Creators: name: Μπουκάλη, Μάγια Χρυσόστομου
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: οργανωμένο έγκλημα
εγκληματική οργάνωση
organized crime
187
organized group

description: Στην παρούσα διπλωματική εργασία επιχειρείται η ερμηνευτική προσέγγιση των νομικών διατάξεων του άρθρου 187 του Ποινικού Κώδικα για το οργανωμένο έγκλημα, με έμφαση στην νομολογιακή πρακτική. Προς το σκοπό αυτό, συλλέχθηκαν αποφάσεις δικαστηρίων και δικαστικών συμβουλίων, οι οποίες έχουν δημοσιευθεί κατά την τελευταία κυρίως δεκαετία σε νομικά περιοδικά και βάσεις δεδομένων, και επιχειρήθηκε η καταγραφή των θέσεων που έλαβε η ελληνική νομολογία επί των προκυψάντων ζητημάτων κατά την εφαρμογή του α. 187 ΠΚ. Περαιτέρω, στόχος της παρούσας εργασίας είναι η συστηματοποίηση και παράθεση των τάσεων της σύγχρονης ελληνικής νομολογίας όσον αφορά την εξεταζόμενη θεματολογία, καθώς και ο επί τη βάσει των θέσεων της ελληνικής θεωρίας σχολιασμός αυτών
description: This paper attempts to interpretatively approach the legal framework concerning organized crime (a. 187 of the Penal Code), with particular focus on greek case law. Therefore, court decisions of the last decade published in legal magazines and data bases were collected in order to be categorized according to specific assessments on matters concerning organized crime
Neon Fine-Structure Line Emission By X-ray Irradiated Protoplanetary Disks
Creators: name: Glassgold, Alfred E.
name: Najita, Joan R.
name: Igea, Javier
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Using a thermal-chemical model for the generic T-Tauri disk of D'Alessio et al. (1999), we estimate the strength of the fine-structure emission lines of NeII and NeIII at 12.81 and 15.55 microns that arise from the warm atmosphere of the disk exposed to hard stellar X-rays. The Ne ions are produced by the absorption of keV X-rays from the K shell of neutral Ne, followed by the Auger ejection of several additional electrons. The recombination cascade of the Ne ions is slow because of weak charge transfer with atomic hydrogen in the case of Ne2+ and by essentially no charge transfer for Ne+. For a distance of 140pc, the 12.81 micron line of Ne II has a flux of 1e-14 erg/cm2s, which should be observable with the Spitzer Infrared Spectrometer and suitable ground based instrumentation. The detection of these fine-structure lines would clearly demonstrate the effects of X-rays on the physical and chemical properties of the disks of young stellar objects and provide a diagnostic of the warm gas in protoplanetary disk atmospheres. They would complement the observed H2 and CO emission by probing vertical heights above the molecular transition layer and larger radial distances that include the location of terrestrial and giant planets.
description: 24 pages, 5 figures
Inverse Kohn-Sham Density Functional Theory: Progress and Challenges
Creators: name: Shi, Yuming
name: Wasserman, Adam
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Inverse Kohn-Sham (iKS) problems are needed to fully understand the one-to-one mapping between densities and potentials on which Density Functional Theory is based. They are also important to advance computational schemes that rely on density-to-potential inversions such as the Optimized Effective Potential method and various techniques for density-based embedding. Unlike the forward Kohn-Sham problems, numerical iKS problems are ill-posed and can be unstable. We discuss some of the fundamental and practical difficulties of iKS problems with constrained-optimization methods on finite basis sets. Various factors that affect the performance are systematically compared and discussed, both analytically and numerically, with a focus on two of the most practical methods: the Wu-Yang method (WY) and partial-differential-equation constrained-optimization (PDE-CO). Our analysis of the WY and PDE-CO highlights the limitation of finite basis sets and the importance of regularization. We introduce two new ideas that will hopefully contribute to making iKS problems more tractable: (1) A correction to the WY method that utilizes the null space of the relevant Hessian matrices; and (2) A finite potential basis-set implementation of the PDE-CO method. We provide an overall strategy for performing numerical density-to-potential inversions that can be directly adopted in practice. We also provide an Appendix with several examples that can be used for benchmarking.
Supplementary document for Frequency stability of cryogenic silicon cavities with semiconductor crystalline coatings - 6253043.pdf
Creators: name: Kedar, Dhruv
name: Yu, Jialiang
name: Oelker, Eric
name: Staron, Alexander
name: Milner, William
name: Robinson, John
name: Legero, Thomas
name: Riehle, Fritz
name: Sterr, Uwe
name: Ye, Jun
Publisher: name: Optica Publishing Group
Year: 2023
Subjects: Uncategorized

description: Zip file containing the supplemental figures and the tex file
Chiral tunneling and the Klein paradox in graphene
Creators: name: Katsnelson, M. I.
name: Novoselov, K. S.
name: Geim, A. K.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The so-called Klein paradox - unimpeded penetration of relativistic particles through high and wide potential barriers - is one of the most exotic and counterintuitive consequences of quantum electrodynamics (QED). The phenomenon is discussed in many contexts in particle, nuclear and astro- physics but direct tests of the Klein paradox using elementary particles have so far proved impossible. Here we show that the effect can be tested in a conceptually simple condensed-matter experiment by using electrostatic barriers in single- and bi-layer graphene. Due to the chiral nature of their quasiparticles, quantum tunneling in these materials becomes highly anisotropic, qualitatively different from the case of normal, nonrelativistic electrons. Massless Dirac fermions in graphene allow a close realization of Klein's gedanken experiment whereas massive chiral fermions in bilayer graphene offer an interesting complementary system that elucidates the basic physics involved.
description: 15 pages, 4 figures
Machine learning methods for the prediction of micromagnetic magnetization dynamics
Creators: name: Schaffer, Sebastian
name: Mauser, Norbert J.
name: Schrefl, Thomas
name: Suess, Dieter
name: Exl, Lukas
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Machine learning (ML) entered the field of computational micromagnetics only recently. The main objective of these new approaches is the automatization of solutions of parameter-dependent problems in micromagnetism such as fast response curve estimation modeled by the Landau-Lifschitz-Gilbert (LLG) equation. Data-driven models for the solution of time- and parameter-dependent partial differential equations require high dimensional training data-structures. ML in this case is by no means a straight-forward trivial task, it needs algorithmic and mathematical innovation. Our work introduces theoretical and computational conceptions of certain kernel and neural network based dimensionality reduction approaches for efficient prediction of solutions via the notion of low-dimensional feature space integration. We introduce efficient treatment of kernel ridge regression and kernel principal component analysis via low-rank approximation. A second line follows neural network (NN) autoencoders as nonlinear data-dependent dimensional reduction for the training data with focus on accurate latent space variable description suitable for a feature space integration scheme. We verify and compare numerically by means of a NIST standard problem. The low-rank kernel method approach is fast and surprisingly accurate, while the NN scheme can even exceed this level of accuracy at the expense of significantly higher costs.
A universal high energy anomaly in angle resolved photoemission spectra of high temperature superconductors - possible evidence of spinon and holon branches
Creators: name: Graf, J.
name: Gweon, G. -H.
name: McElroy, K.
name: Zhou, S. Y.
name: Jozwiak, C.
name: Rotenberg, E.
name: Bill, A.
name: Sasagawa, T.
name: Eisaki, H.
name: Uchida, S.
name: Takagi, H.
name: Lee, D. -H.
name: Lanzara, A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A universal high energy anomaly in the single particle spectral function is reported in three different families of high temperature superconductors by using angle-resolved photoemission spectroscopy. As we follow the dispersing peak of the spectral function from the Fermi energy to the valence band complex, we find dispersion anomalies marked by two distinctive high energy scales, E_1=~ 0.38 eV and E_2=~0.8 eV. E_1 marks the energy above which the dispersion splits into two branches. One is a continuation of the near parabolic dispersion, albeit with reduced spectral weight, and reaches the bottom of the band at the gamma point at ~0.5 eV. The other is given by a peak in the momentum space, nearly independent of energy between E_1 and E_2. Above E_2, a band-like dispersion re-emerges. We conjecture that these two energies mark the disintegration of the low energy quasiparticles into a spinon and holon branch in the high T_c cuprates.
description: accepted for publication in Phys. Rev. Lett
Deeply Sub-Wavelength Localization with Reverberation-Coded-Aperture
Creators: name: del Hougne, Michael
name: Gigan, Sylvain
name: del Hougne, Philipp
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applied Physics (physics.app-ph)
subject: Signal Processing (eess.SP)
subject: FOS: Physical sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Accessing sub-wavelength information about a scene from the far-field without invasive near-field manipulations is a fundamental challenge in wave engineering. Yet it is well understood that the dwell time of waves in complex media sets the scale for the waves' sensitivity to perturbations. Modern coded-aperture imagers leverage the degrees of freedom (DoF) offered by complex media as natural multiplexor but do not recognize and reap the fundamental difference between placing the object of interest outside or within the complex medium. Here, we show that the precision of localizing a sub-wavelength object can be improved by several orders of magnitude simply by enclosing it in its far field with a reverberant chaotic cavity. We identify deep learning as suitable noise-robust tool to extract sub-wavelength information encoded in multiplexed measurements, achieving resolutions well beyond those available in the training data. We demonstrate our finding in the microwave domain: harnessing the configurational DoF of a simple programmable metasurface, we localize a sub-wavelength object inside a chaotic cavity with a resolution of $λ/76$ using intensity-only single-frequency single-pixel measurements. Our results may have important applications in photoacoustic imaging as well as human-machine interaction based on reverberating elastic waves, sound or microwaves.
description: 7 pages including 3 figures + 7 pages Supplemental Material
Transverse charge distributions of the nucleon and their Abel images
Creators: name: Kim, June-Young
name: Kim, Hyun-Chul
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We investigate the two-dimensional transverse charge distributions of the transversely polarized nucleon. As the longitudinal momentum ($P_z$) of the nucleon increases, the electric dipole moment is induced, which causes the displacement of the transverse charge and magnetization distributions of the nucleon. The induced dipole moment of the proton reaches its maximum value at around $P_z \approx 3.2$ GeV due to the kinematical reason. We also investigate how the Abel transformations map the three-dimensional charge and magnetization distributions in the Breit frame on to the transverse charge and magnetization ones in the infinite momentum frame.
description: 13 pages, 7 figures
Comparison of semimartingales and Lévy processes
Creators: name: Bergenthum, Jan
name: Rüschendorf, Ludger
Publisher: name: arXiv
Year: 2007
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60E15 (Primary) 60G51, 60G44 (Secondary)

description: In this paper, we derive comparison results for terminal values of $d$-dimensional special semimartingales and also for finite-dimensional distributions of multivariate Lévy processes. The comparison is with respect to nondecreasing, (increasing) convex, (increasing) directionally convex and (increasing) supermodular functions. We use three different approaches. In the first approach, we give sufficient conditions on the local predictable characteristics that imply ordering of terminal values of semimartingales. This generalizes some recent convex comparison results of exponential models in [Math. Finance 8 (1998) 93--126, Finance Stoch. 4 (2000) 209--222, Proc. Steklov Inst. Math. 237 (2002) 73--113, Finance Stoch. 10 (2006) 222--249]. In the second part, we give comparison results for finite-dimensional distributions of Lévy processes with infinite Lévy measure. In the first step, we derive a comparison result for Markov processes based on a monotone separating transition kernel. By a coupling argument, we get an application to the comparison of compound Poisson processes. These comparisons are then extended by an approximation argument to the ordering of Lévy processes with infinite Lévy measure. The third approach is based on mixing representations which are known for several relevant distribution classes. We discuss this approach in detail for the comparison of generalized hyperbolic distributions and for normal inverse Gaussian processes.
description: Published at http://dx.doi.org/10.1214/009117906000000386 in the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Relations between topology and the quantum metric for Chern insulators
Creators: name: Ozawa, Tomoki
name: Mera, Bruno
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We investigate relations between topology and the quantum metric of two-dimensional Chern insulators. The quantum metric is the Riemannian metric defined on a parameter space induced from quantum states. Similar to the Berry curvature, the quantum metric provides a geometrical structure associated to quantum states. We consider the volume of the parameter space measured with the quantum metric, which we call the quantum volume of the parameter space. We establish an inequality between the quantum volume of the Brillouin zone and that of the twist-angle space. Exploiting this inequality and the inequality between the Chern number and the quantum volume, we investigate how the quantum volume can be used as a good measure to infer the Chern number. The inequalities are found to be saturated for fermions filling Landau levels. Through various concrete models, we elucidate conditions when the quantum volume gives a good estimate of the topology of the system.
description: 14 pages, 5 figures
Drug-Target interaction prediction using imbalance aware multi-label methods
Creators: name: Ηλιάδης, Δημήτριος Φωτίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: Πρόβλεψη αλληλεπίδρασης φαρμάκου-στόχου
Μηχανική Μάθηση
Μάθηση πολλαπλών ετικετών
Drug-Target interaction prediction
Machine Learning
Multi-label Learning

description: Κάθε χρόνο, οι φαρμακευτικές εταιρείες αντιμετωπίζουν την απαιτητική πρόκληση να αυξήσουν την αποτελεσματικότητα της διαδικασίας ανάπτυξης νέων, αποδοτικών και φθηνών φαρμάκων. Τις τελευταίες δεκαετίες, μέθοδοι μηχανικής μάθησης έχουν εκμεταλλευτεί τα μεγάλα σύνολα δεδομένων που ήταν διαθέσιμα στις μεγάλες φαρμακευτικές εταιρείες και έχουν φτάσει στο σημείο να αποτελούν μια βιώσιμη εναλλακτική λύση για την ανάπτυξη νέων φαρμάκων. Σκοπός της παρούσας διπλωματικής εργασίας ήταν ο πειραματισμός με διαφορετικές μεθόδους πολλαπλών ετικετών που λαμβάνουν υπόψη την ανισορροπία των κλάσεων, πάνω στο πρόβλημα της πρόβλεψης της αλληλεπίδρασης φαρμάκου-βιολογικού στόχου. Οι μέθοδοι που εφαρμόσαμε περιλαμβάνουν την κλασική προσέγγιση της δυαδικής συνάφειας, το σύνολο των ταξινομητών αλυσίδας με τυχαία υποδειγματοληψία και τη μέθοδο συν-μάθησης πολλαπλών ετικετών. Τα πειράματα μας έγιναν πάνω σε δύο διαφορετικά σύνολα δεδομένων, ένα με μέγεθος που μπορεί να συγκριθεί με αυτό που χρησιμοποιούν οι φαρμακευτικές εταιρείες στα ερευνητικά τους τμήματα και ένα πολύ μικρότερο σύνολο δεδομένων που χρησιμοποιείται ευρέως από ερευνητές στον τομέα της πρόβλεψης αλληλεπίδρασης φαρμάκου-βιολογικού στόχου. Επίσης εξετάσαμε διαφορετικές προσεγγίσεις του προβλήματος της πρόβλεψης αλληλεπιδράσεων φαρμάκων-βιολογικών στόχων και δείξαμε ότι κάποιες προσεγγίσεις μπορούν να αποδειχθούν μη ρεαλιστικές και τελικά να ενισχύσουν με εσφαλμένο τρόπο την απόδοση των μεθόδων που χρησιμοποιούνται σε αυτόν τον τομέα
description: Every year, the pharmaceutical industry faces the challenge of increasing the efficiency of developing new, effective and inexpensive drugs. Over the last few decades, machine learning methods took advantage of the large datasets available to big pharma and became a viable alternative for the development of new drugs. The aim of the present thesis was to experiment with different imbalance aware, multi-label methods on drug-target interaction datasets. The methods we implemented include the classic Binary Relevance approach, the Ensemble of Classifier Chains with Random Undersampling (ECCRU) and the Multi-Label Co-Training method. We experimented with two different datasets, one with a considerable size, comparable to what the pharmaceutical companies use in their day-to-day operations and a much smaller dataset that is widely used by other researchers in the area of drug-target interaction prediction (gold standard datasets). We also examined different problem settings and showed that some can be considered quite unrealistic and falsely boost the performance of methods that are used in the area of drug-target interaction prediction
Squashing, Mass, and Holography for 3d Sphere Free Energy
Creators: name: Chester, Shai M.
name: Kalloor, Rohit R.
name: Sharon, Adar
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the sphere free energy $F(b;m_I)$ in $\mathcal{N}=6$ ABJ(M) theory deformed by both three real masses $m_I$ and the squashing parameter $b$, which has been computed in terms of an $N$ dimensional matrix model integral using supersymmetric localization. We show that setting $m_3=i\frac{b-b^{-1}}{2}$ relates $F(b;m_I)$ to the round sphere free energy, which implies infinite relations between $m_I$ and $b$ derivatives of $F(b;m_I)$ evaluated at $m_I=0$ and $b=1$. For $\mathcal{N}=8$ ABJ(M) theory, these relations fix all fourth order and some fifth order derivatives in terms of derivatives of $m_1,m_2$, which were previously computed to all orders in $1/N$ using the Fermi gas method. This allows us to compute $\partial_b^4 F\vert_{b=1}$ and $\partial_b^5 F\vert_{b=1}$ to all orders in $1/N$, which we precisely match to a recent prediction to sub-leading order in $1/N$ from the holographically dual $AdS_4$ bulk theory.
description: 23 pages
Μελέτη της επίδρασης της δαμπιγκατράνης στην οστική επούλωση
Creators: name: Κυριακάκη, Ιωάννα Μιχαήλ
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: δαμπιγκατράνη
επίμυες
έλλειμμα
dabigatran
rats
deficit

description: Σκοπός της παρούσας έρευνας ήταν η μελέτη σε πειραματικό ζωικό πρότυπο της επίδρασης της δαμπιγκατράνης στην επούλωση οστικών ελλειμμάτων κρανίου. Η μελέτη πραγματοποιήθηκε σε δεκαέξι επίμυες Wistar, που χωρίστηκαν στην ομάδα Α που ελάμβανε αγωγή με δαμπιγκατράνη ημερησίως, και στην ομάδα Β χωρίς αγωγή. Η αγωγή ξεκινούσε μια ημέρα πριν την χειρουργική επέμβαση και συνέχιζε για δεκαπέντε ημέρες μετά, οπότε και πραγματοποιούνταν η ευθανασία των ζώων. Η χειρουργική διαδικασία περιελάμβανε τη δημιουργία δύο κυκλικών ελλειμμάτων, εκατέρωθεν της μέσης γραμμής, στα βρεγματικά οστά, που αφέθηκαν προς αυθόρμητη επούλωση (χωρίς τοποθέτηση μοσχευματικού υλικού ή μεμβράνης). Ακολούθησε ιστολογική και ιστομορφομετρική μελέτη όπου αξιολογήθηκε το ποσοστό νεοσχηματισθέντος οστού εντός των ελλειμμάτων καθώς και το ποσοστό γεφύρωσής τους. Η ιστολογική μελέτη έδειξε μερική πλήρωση των οστικών ελλειμμάτων με νέο οστό, κυρίως άωρου δικτυωτού. Μεταξύ των ομάδων Α και Β δεν υπήρχε στατιστικώς σημαντική διαφορά ούτε στο ποσοστό νεοσχηματιθέντος οστού, ούτε στο ποσοστό γεφύρωσης των ελλειμμάτων. Τα αποτελέσματα της μελέτης έδειξαν ότι η δαμπιγκατράνη δεν επηρεάζει αρνητικά την επούλωση των οστικών ελλειμμάτων
description: The main purpose of this study is to investigate the possible effects of dabigatran on healing of osseous defects in rats’ parietal bones. This study was an experimental study on lab Wistar rats. Sixteen male Wistar rats were split into two groups, A & B. Each of all of the rats sustained two circular bone defects, each on either side of the parietal bones. Group A was administered per os dabigatran, daily for two weeks, starting one day before the surgical procedure. Group B was the control group. Two weeks after the surgery, euthanasia of the animals took place and the tissue samples (parietal bones that contained the defects) were harvested. No statistical significant differences were found between the two groups; neither in regard to the regenerated bone, nor the percentage of bone bridging. Thus, this study has shown that dabigatran had no different effect on the bone repair in comparison to the older anticoagulants which are known to lead to bone healing delay. Albeit dabigatran has shown no improvement of bone healing, the fact that it is safer puts it in advantage in comparison to other anticoagulants. Considering that there has not been enough research testing the dabigatran effects on bone healing, more studies should take place in order to investigate different parameters, such as the group size, dose, the size of the defects or the duration of the healing
[Hockett Potawatomi texts IV]
Creators: name: Spear, Alice
name: Hockett, Charles
name: Buszard-Welcher, Laura
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: pot

description: 6 hand-transcribed texts. 1: story by Alice Spear of white men meeting Indians; 2: story about Coon and Wolf; 3: story about an Indian and his pet coon; 4: story about an old woman and rabbit-boy; 5: story about a man-turtle; 6: story about coon and some crawdads
Kähler geometry and Chern insulators: Relations between topology and the quantum metric
Creators: name: Mera, Bruno
name: Ozawa, Tomoki
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We study Chern insulators from the point of view of Kähler geometry, i.e. the geometry of smooth manifolds equipped with a compatible triple consisting of a symplectic form, an integrable almost complex structure and a Riemannian metric. The Fermi projector, i.e. the projector onto the occupied bands, provides a map to a Kähler manifold. The quantum metric and Berry curvature of the occupied bands are then related to the Riemannian metric and symplectic form, respectively, on the target space of quantum states. We find that the minimal volume of a parameter space with respect to the quantum metric is $π|\mathcal{C}|$, where $\mathcal{C}$ is the first Chern number. We determine the conditions under which the minimal volume is achieved both for the Brillouin zone and the twist-angle space. The minimal volume of the Brillouin zone, provided the quantum metric is everywhere non-degenerate, is achieved when the latter is endowed with the structure of a Kähler manifold inherited from the one of the space of quantum states. If the quantum volume of the twist-angle torus is minimal, then both parameter spaces have the structure of a Kähler manifold inherited from the space of quantum states. These conditions turn out to be related to the stability of fractional Chern insulators. For two-band systems, the volume of the Brillouin zone is naturally minimal provided the Berry curvature is everywhere non-negative or nonpositive, and we additionally show how the latter, which in this case is proportional to the quantum volume form, necessarily has zeros due to topological constraints.
description: 14 pages, no figure
The generalised Dirichlet to Neumann map for moving initial-boundary value problems
Creators: name: Fokas, A. S.
name: Pelloni, B.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 65L10

description: We present an algorithm for characterising the generalised Dirichlet to Neumann map for moving initial-boundary value problems. This algorithm is derived by combining the so-called global relation, which couples the initial and boundary values of the problem, with a new method for inverting certain one-dimensional integrals. This new method is based on the spectral analysis of an associated ODE and on the use of the d-bar formalism. As an illustration, the Neumann boundary value for the linearised Schroedinger equation is determined in terms of the Dirichlet boundary value and of the initial condition.
Asymptotic expansions at any time for scalar fractional SDEs with Hurst index $H>1/2$
Creators: name: Darses, Sébastien
name: Nourdin, Ivan
Publisher: name: arXiv
Year: 2007
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: We study the asymptotic expansions with respect to $h$ of \[\mathrm{E}[Δ_hf(X_t)],\qquad \mathrm{E}[Δ_hf(X_t)|\mathscr{F}^X_t]\quadand\quad \mathrm{E}[Δ_hf(X_t)|X_t],\] where $Δ_hf(X_t)=f(X_{t+h})-f(X_t)$, when $f:\mathbb {R}\to\mathbb{R}$ is a smooth real function, $t\geq0$ is a fixed time, $X$ is the solution of a one-dimensional stochastic differential equation driven by a fractional Brownian motion with Hurst index $H>{1}/{2}$ and $\mathscr{F}^X$ is its natural filtration.
description: Published in at http://dx.doi.org/10.3150/08-BEJ124 the Bernoulli (http://isi.cbs.nl/bernoulli/) by the International Statistical Institute/Bernoulli Society (http://isi.cbs.nl/BS/bshome.htm)
Design considerations of photonic lanterns for diffraction-limited spectrometry
Creators: name: Lin, Jonathan
name: Jovanovic, Nemanja
name: Fitzgerald, Michael
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The coupling of large telescopes to astronomical instruments has historically been challenging due to the tension between instrument throughput and stability. Light from the telescope can either be injected wholesale into the instrument, maintaining high throughput at the cost of point-spread function (PSF) stability, or the time-varying components of the light can be filtered out with single-mode fibers (SMFs), maintaining instrument stability at the cost of light loss. Today, the field of astrophotonics provides a potential resolution to the throughput-stability tension in the form of the photonic lantern (PL): a tapered waveguide which can couple a time-varying and aberrated PSF into multiple diffraction-limited beams at an efficiency that greatly surpasses direct SMF injection. As a result, lantern-fed instruments retain the stability of SMF-fed instruments while increasing their throughput. To this end, we present a series of numerical simulations characterizing PL performance as a function of lantern geometry, wavelength, and wavefront error (WFE), aimed at guiding the design of future diffraction-limited spectrometers. These characterizations include a first look at the interaction between PLs and phase-induced amplitude apodization (PIAA) optics.
Στάδια πνευματικής μεθηλικίωσης στη λειτουργία του λόγου
Creators: name: Τσιτλακίδης-Χαρισιάδης, Χαράλαμπος Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: Λόγος
Εξομολόγηση
Ψυχανάλυση
Discourse
Confession
Psychoanalysis

description: Σκοπός της παρούσας μεταπτυχιακής εργασίας είναι η παρουσίαση και η μελέτη του λόγου, από θεολογικής και ψυχαναλυτικής σκοπιάς. Ειδικότερα, ερευνήθηκε ο θεολογικός και ψυχαναλυτικός λόγος μέσα από τις διαδικασίες της εξομολόγησης και της ψυχανάλυσης, αντιστοίχως. Μέσα στο πλαίσιο των διαδικασιών, αναλύθηκε η λειτουργία του λόγου στο υποκείμενο και η διεργασία του λόγου που συμβαίνει από αυτό. Επιπλέον, διερευνηθήκαν τα ερωτήματα σχετικά με το ποιός μιλάει, από ποιά θέση και σε ποιόν απευθύνεται, αναφορικά με ένα υποκείμενο που συμμετέχει σε αυτές τις διαδικασίες. Τέλος, εξετάστηκε ο σκοπός της συμμετοχής κάποιου υποκειμένου στις δύο διαδικασίες και η πνευματική του ανάπτυξη μέσα από τα στάδια ανάπτυξης του λόγου. Συμπερασματικά, αξιολογήθηκε η από κοινού διενέργεια των δύο διαδικασιών από το υποκείμενο και η θέση του συγγραφέα δια μέσου της προσωπικής του εμπειρίας.
description: The aim of this present thesis is to highlight and examine the speech, from a theological and psychoanalytic perspective. In particular, the theological and psychoanalytic discourses were researched, through the processes of confession and psychoanalysis, respectively. Within the framework of the processes, the function of the discourse in the subject and the discourse process that occurred in the said subject, were analyzed. Furthermore, three questions were investigated upon the matters of who is speaking, from what position he/she does it and to whom it is addressed, regarding a subject involved in these processes. Finally, the purpose of the participation of a subject in the two processes and the intellectual development of it by the development of its speech, were examined. In conclusion, the joint procedure of the two processes was evaluated by the subject and the author's inference through his personal experience.
Diffusion and activation of n-type dopants in germanium
Creators: name: Koike, Masahiro
name: Kamata, Yoshiki
name: Ino, Tsunehiro
name: Hagishima, Daisuke
name: Tatsumura, Kosuke
name: Koyama, Masato
name: Nishiyama, Akira
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The diffusion and activation of $n$-type impurities (P and As) implanted into $p$-type Ge(100) substrates were examined under various dose and annealing conditions. The secondary ion mass spectrometry profiles of chemical concentrations indicated the existence of a sufficiently high number of impurities with increasing implanted doses. However, spreading resistance probe profiles of electrical concentrations showed electrical concentration saturation in spite of increasing doses and indicated poor activation of As relative to P in Ge. The relationships between the chemical and electrical concentrations of P in Ge and Si were calculated, taking into account the effect of incomplete ionization. The results indicated that the activation of P was almost the same in Ge and Si. The activation ratios obtained experimentally were similar to the calculated values, implying insufficient degeneration of Ge. The profiles of P in Ge substrates with and without damage generated by Ge ion implantation were compared, and it was clarified that the damage that may compensate the activated $n$-type dopants has no relationship with the activation of P in Ge.
description: 6 pages, 4 figures
Entanglement of two distant Bose-Einstein condensates by detection of Bragg-scattered photons
Creators: name: Deb, B.
name: Agarwal, G. S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We show that it is possible to generate entanglement between two distant Bose-Einstein condensates by detection of Hanbury Brown-Twiss type correlations in photons Bragg-scattered by the condensates. Upon coincident detection of two photons by two detectors, the projected joint state of two condensates is shown to be non-Gaussian. We verify the existence of entanglement by showing that the partially transposed state is negative. Further we use the inequality in terms of higher order moments to confirm entanglement. Our proposed scheme can be generalized for multiple condensates and also for spinor condensates with Bragg scattering of polarized light with the latter capable of producing hyper entanglement.
description: 9 pages, 5 figures
A Succinct Multivariate Lazy Multivariate Tower AD for Weil Algebra Computation
Creators: name: Ishii, Hiromi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Symbolic Computation (cs.SC)
subject: Mathematical Software (cs.MS)
subject: Numerical Analysis (math.NA)
subject: Differential Geometry (math.DG)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We propose a functional implementation of \emph{Multivariate Tower Automatic Differentiation}. Our implementation is intended to be used in implementing $C^\infty$-structure computation of an arbitrary Weil algebra, which we discussed in the previous work.
Κωνσταντίνος Ξενάκης, μια πορεία στον χρόνο
Creators: name: Φωτιάδου, Κυριακή Αθανασίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: Ξενάκης
Μουσείο
Xenakis
Museum

description: Σκοπός της εργασίας, αποτελεί ο Νοηματικός και χωρικός σχεδιασμός του Μουσείου Κωνσταντίνου Ξενάκη, το οποίο θα δημιουργηθεί στο πρώην στρατόπεδο Παπαλουκά στις Σέρρες. Η νοηματική καθώς και η χωρική πρόταση, στόχο έχει να παρουσιάσει το έργο του Κωνσταντίνου Ξενάκη εκ βαθέων, δημιουργώντας ένα θεματικό μουσείο, όπου ο επισκέπτης θα έχει την δυνατότητα μιας βιωματικής προσέγγισης του έργου του καλλιτέχνη. Η εργασία χωρίζεται σε δυο μέρη και σώματα. Το πρώτο μέρος, αποτελεί το πρώτο σώμα και το θεωρητικό κομμάτι της εργασίας, όπου παρουσιάζει τις θεωρητικές προσεγγίσεις της έννοιας του μουσείου, την διαδρομή του Κωνσταντίνου Ξενάκη μέσα στον χρόνο καθώς και την νοηματική και την χωρική θεωρητική πρόταση για τον σχεδιασμό του Μουσείου. Τέλος, το δεύτερο μέρος, το οποίο αποτελεί το δεύτερο σώμα της εργασίας, παρουσιάζει τις σχεδιαστικές αποτυπώσεις των χώρων, καθώς και τις εικόνες των αντικειμένων προς έκθεση
description: The purpose of this study is, the conceptual and space Design of the Museum of Constantinos Xenakis, which will be created in the former Papalouka camp in Serres. The mark of the conceptual and space Design suggestion, is to present the creations of Constantinos Xenakis to the deep, creating a thematic museum where the visitor will have the opportunity of an experiential approach to the work of the artist. This study is divided into two parts. The first part, is the first body and the theoretical part of the study, where presents the museum’s theoretical approaches, the course, of Constantinos Xenakis in time, as well as the conceptual and space design theoretical suggestion. Finally the second part, which is the second body of the study, presents the designs of the spaces as well as the images of objects to be exposed
description: Σε συνεργασία με το τμήμα Δημοτικής Εκπαίδευσης πανεπιστημίου Δυτικής Μακεδονίας
A slow-to-start traffic model related to a M/M/1 queue
Creators: name: Cáceres, Fredy Castellares
name: Ferrari, Pablo A.
name: Pechersky, Eugene
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider a system of ordered cars moving in $\R$ from right to left. Each car is represented by a point in $\R$; two or more cars can occupy the same point but cannot overpass. Cars have two possible velocities: either 0 or 1. An unblocked car needs an exponential random time of mean 1 to pass from speed 0 to speed 1 (\emph{slow-to-start}). Car $i$, say, travels at speed 1 until it (possibly) hits the stopped car $i-1$ to its left. After the departure of car $i-1$, car $i$ waits an exponential random time to change its speed to 1, travels at this speed until it hits again stopped car $i-1$ and so on. Initially cars are distributed in $\R$ according to a Poisson process of parameter $λ<1$. We show that every car will be stopped only a finite number of times and that the final relative car positions is again a Poisson process with parameter $λ$. To do that, we relate the trajectories of the cars to a $M/M/1$ stationary queue as follows. Space in the traffic model is time for the queue. The initial positions of the cars coincide with the arrival process of the queue and the final relative car positions match the departure process of the queue.
description: 14 pages, 2 figures
Automated Video Labelling: Identifying Faces by Corroborative Evidence
Creators: name: Brown, Andrew
name: Coto, Ernesto
name: Zisserman, Andrew
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: We present a method for automatically labelling all faces in video archives, such as TV broadcasts, by combining multiple evidence sources and multiple modalities (visual and audio). We target the problem of ever-growing online video archives, where an effective, scalable indexing solution cannot require a user to provide manual annotation or supervision. To this end, we make three key contributions: (1) We provide a novel, simple, method for determining if a person is famous or not using image-search engines. In turn this enables a face-identity model to be built reliably and robustly, and used for high precision automatic labelling; (2) We show that even for less-famous people, image-search engines can then be used for corroborative evidence to accurately label faces that are named in the scene or the speech; (3) Finally, we quantitatively demonstrate the benefits of our approach on different video domains and test settings, such as TV shows and news broadcasts. Our method works across three disparate datasets without any explicit domain adaptation, and sets new state-of-the-art results on all the public benchmarks.
On the enhancement of nuclear reaction rates in high-temperature plasma
Creators: name: Nakamura, Makoto
name: Voronchev, Victor T.
name: Nakao, Yasuyuki
Publisher: name: arXiv
Year: 2006
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We argue that the Maxwellian approximation can essentially underestimate the rates of some nuclear reactions in hot plasma under conditions very close to thermal equilibrium. This phenomenon is demonstrated explicitly on the example of reactions in self-sustained DT fusion plasma with admixture of light elements X = Li, Be, C. A kinetic analysis shows that the reactivity enhancement results from non-Maxwellian knock-on perturbations of ion distributions caused by close collisions with energetic fusion products. It is found that although the fraction of the knock-on ions is small, these particles appreciably affect the D+X and T+X reaction rates. The phenomenon discussed is likely to have general nature and can play role in other laboratory and probably astrophysical plasma processes.
description: 12 pages, 4 figures, to be published in Phys. Lett. A
Large anomalous Hall effect in the kagome ferromagnet LiMn$_6$Sn$_6$
Creators: name: Chen, Dong
name: Le, Congcong
name: Fu, Chenguang
name: Lin, Haicheng
name: Schnelle, Walter
name: Sun, Yan
name: Felser, Claudia
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Kagome magnets are believed to have numerous exotic physical properties due to the possible interplay between lattice geometry, electron correlation and band topology. Here, we report the large anomalous Hall effect in the kagome ferromagnet LiMn$_6$Sn$_6$, which has a Curie temperature of 382 K and easy plane along with the kagome lattice. At low temperatures, unsaturated positive magnetoresistance and opposite signs of ordinary Hall coefficient for $ρ_{xz}$ and $ρ_{yx}$ indicate the coexistence of electrons and holes in the system. A large intrinsic anomalous Hall conductivity of 380 $Ω^{-1}$ cm$^{-1}$, or 0.44 $e^2/h$ per Mn layer, is observed in $σ_{xy}^A$. This value is significantly larger than those in other $R$Mn$_6$Sn$_6$ ($R$ = rare earth elements) kagome compounds. Band structure calculations show several band crossings, including a spin-polarized Dirac point at the K point, close to the Fermi energy. The calculated intrinsic Hall conductivity agrees well with the experimental value, and shows a maximum peak near the Fermi energy. We attribute the large anomalous Hall effect in LiMn$_6$Sn$_6$ to the band crossings closely located near the Fermi energy.