cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Heavy Quark Masses from Sum Rules in Four-Loop Approximation
Creators: name: Kuehn, Johann H.
name: Steinhauser, Matthias
name: Sturm, Christian
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: New data for the total cross section $σ(e^+e^-\to{hadrons})$ in the charm and bottom threshold region are combined with an improved theoretical analysis, which includes recent four-loop calculations, to determine the short distance $\bar{\rm MS}$ charm and bottom quark masses. A detailed discussion of the theoretical and experimental uncertainties is presented. The final result for the $\bar{\rm MS}$-masses, $m_c(3 {GeV})=0.986(13)$ GeV and $m_b(10 {GeV})=3.609(25)$ GeV, can be translated into $m_c(m_c)=1.286(13)$ GeV and $m_b(m_b)=4.164(25)$ GeV. This analysis is consistent with but significantly more precise than a similar previous study.
description: 29 pages
A low density-wave spiral pattern speed, from the tracer separations (age gradient) across a spiral arm in the Milky Way
Creators: name: Vallee, Jacques P
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We observe the density wave angular pattern speed OMEGA-p to be near 12 to 17 km / s / kpc, by the separation between a typical optical HII region (from the spiral arm dust lane) and using a HII evolution time model to yield its relative speed, and independently by the separation between a typical radio maser (from the spiral arm dust lane) with a maser model.
description: 18 pages, 3 figures, 3 tables, 1 equation, 46 references (accepted for publication)
Separation of Variables and the Geometry of Jacobians
Creators: name: Hurtubise, Jacques
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: Algebraic Geometry (math.AG)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: This survey examines separation of variables for algebraically integrable Hamiltonian systems whose tori are Jacobians of Riemann surfaces. For these cases there is a natural class of systems which admit separations in a nice geometric sense. This class includes many of the well-known cases.
description: This is a contribution to the Vadim Kuznetsov Memorial Issue on Integrable Systems and Related Topics, published in SIGMA (Symmetry, Integrability and Geometry: Methods and Applications) at http://www.emis.de/journals/SIGMA/
Lexical elicitation and text analysis: Noun classes, "Old Town Yagala" text
Creators: name: Mansaray, Kondeh
name: Sesay, Albert Korloi
name: Rolle, Nicholas
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: lma

description: M4A and WAV files of recording. See "red notebook" (file bundle 2022-06.004) for the notes.
The smallest fluid on earth
Creators: name: Schenke, Björn
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: High energy heavy ion collisions create quark gluon plasmas that behave like almost perfect fluids. Very similar features to those that led to this insight have also been observed in experimental data from collisions of small systems, involving protons or other light nuclei. We describe recent developments aimed at understanding whether, and if so how, systems that produce relatively few particles (orders of magnitude less than in typical heavy ion collisions) and are only one to a few times the size of a proton, can behave like fluids. This involves a deeper understanding of fluid dynamics and its applicability, improvements of our understanding of the initial geometry of the collisions by considering fluctuations of the proton shape, as well as advancements in the calculation of initial state effects within an effective theory of quantum chromodynamics, which can affect the observables that are used to study fluid behavior. We further address open questions and discuss future directions.
description: 28 pages, 6 figures
Electromagnetic Probes at RHIC-II
Creators: name: David, G.
name: Rapp, R.
name: Xu, Z.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We summarize how future measurements of electromagnetic (e.m.) probes at the Relativistic Heavy Ion Collider (RHIC), in connection with theoretical analysis, can advance our understanding of strongly interacting matter at high energy densities and temperatures. After a brief survey of the important role that e.m. probes data have played at the Super Proton Synchrotron (SPS, CERN) and RHIC to date, we identify key physics objectives and observables that remain to be addressed to characterize the (strongly interacting) Quark-Gluon Plasma (sQGP) and associated transition properties at RHIC. These include medium modifications of vector mesons via low-mass dileptons, a temperature measurement of the hot phases via continuum radiation, as well as gamma-gamma correlations to characterize early source sizes. We outline strategies to establish microscopic matter and transition properties such as the number of degrees of freedom in the sQGP, the origin of the hadron masses and manifestations of chiral symmetry restoration, which will require accompanying but rather well-defined advances in theory. Increased experimental precision, order of magnitude higher statistics than currently achievable, as well as a detailed scan of colliding species and energies are then mandatory to achieve sufficient discrimination power in theoretical interpretations. This increased precision can be achieved with hardware upgrades to the large RHIC detectors (PHENIX and STAR) along with at least a factor of ten as increase in luminosity over the next few years as envisioned for RHIC-II.
description: 72 pages, 42 figures
Additional file 1: of Diel rewiring and positive selection of ancient plant proteins enabled evolution of CAM photosynthesis in Agave
Creators: name: Yin, Hengfu
name: Guo, Hao-Bo
name: Weston, David
name: Borland, Anne
name: Ranjan, Priya
name: Abraham, Paul
name: Jawdy, Sara
name: Wachira, James
name: Tuskan, Gerald
name: Tschaplinski, Timothy
name: Wullschleger, Stan
name: Guo, Hong
name: Hettich, Robert
name: M. Gross, Stephen
name: Wang, Zhong
name: Visel, Axel
name: Yang, Xiaohan
Publisher: name: figshare
Year: 2018
Subjects: subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Evolutionary Biology
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Developmental Biology
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: Computational Biology

description: Figure S1. Overview charts of the gene ontology (GO) biological processes over-represented in individual co-expression modules. (PDF 464 kb)
Normal MRI in patients with acute stroke is the best predictor of 90-day outcome
Creators: name: Zain A. Bhutta
name: Akhtar, Naveed
name: Kamran, Saadat
name: George, Pooja
name: Deleu, Dirk
name: Thomas, Stephen H.
name: Shuaib, Ashfaq
Publisher: name: F1000 Research Limited
Year: 2019

description: The aim of our study was to evaluate the usefulness of MRI in patients presenting with a suspected diagnosis of acute stroke. We admitted 4400 patients with the diagnosis of acute stroke between Jan 2014 and June 2017 at Hamad Medical Corporation. A total of 2880 patients underwent 3T MRI within 48 hours of admission. Patients were assessed for demographics, risk factors, clinical features, severity of stroke and outcome. We found that Ischemic stroke was diagnosed in 65.4% (1885/2880) including lacunar strokes 44.1% (831), cortical strokes 26.6% (502), and posterior circulation stroke 29.3% (552). Normal MRI was found in 5.4% (n=101) in patients with confirmed ischemic stroke. Normal MRI was more frequent in lacunar strokes compared to posterior circulation or cortical strokes (62.4%, 24.8% and 12.9%, p<0.0001). Abnormal MRI was significantly higher in patients with diabetes (55.5% vs 43.6%, p=0.019), dyslipidemia (54.9% vs 43.6%, p= 0.026), higher systolic blood pressure at arrival (157.8 vs151.7 mmHg, p=0.047), higher admitting NIHSS (5.21 vs 3.43, p<0.0001), higher Hba1c on (7.5% vs 6.9%, p=0.021) and higher serum cholesterol (5.06 vs 4.62, p=0.002). Patients with normal MRI were found to have better 90-day prognosis (mRS 0-2) as compared to patients with abnormal MRI on admission (68.3% vs 53.0%, p=0.003). After excluding mimics and TIAs, 5.4 % of patients with acute ischemic stroke have normal MRI. These patients have lower NIHSS, are more likely to have lacunar stroke and have a significantly better prognosis.
Elicitation: Vowel length, codas, inflected verbs, noun phrases
Creators: name: Mansaray, Kondeh
name: Marah, Kondowulay
name: Rolle, Nicholas
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: lma

description: M4A and WAV files of recording. See "red notebook" (file bundle 2022-06.004) for the notes.
Δεοντολογικά και νομικά ζητήματα που προκύπτουν κατά την ενημέρωση και συναίνεση ασθενών πριν και μετά από τη χειρουργική επέμβαση
Creators: name: Τσελώνη, Λιλίκα Στέφανου
Publisher: name: Aristotle University of Thessaloniki
Year: 2016
Subjects: ενημέρωση ασθενούς
συναίνεση ασθενούς
ιατρική ευθύνη
patient information
patient consent
medical responsibility

description: Σκοπός της εργασίας ήταν η παρουσίαση της σημασίας σωστής ενημέρωσης και ενημερωμένης συναίνεσης του ασθενούς πριν την χειρουργική παρέμβαση. Αρχικά κάνουμε μια σύντομη ιστορική αναδρομή από την εποχή του Ιπποκράτη μέχρι τις μέρες μας αναφέροντας τις διακηρύξεις και τους νόμους που υπογράφτηκαν. Έπειτα, αναφέρουμε τις αρχές ηθικής που πρέπει να διέπουν την ιατρική πράξη και το ρόλο της σωστής επικοινωνίας που οδηγεί στην σωστή ενημέρωση και συναίνεση του ασθενούς σε προγραμματισμένα χειρουργεία και σε επείγουσες καταστάσεις. Στη συνέχεια, αναλύουμε το νομικό πλαίσιο που υφίσταται και αφορά διάφορες κατηγορίες ασθενών καθώς και την ιατρική ευθύνη (αστική, ποινική και πειθαρχική) του ιατρού σε περίπτωση παραβίασης του. Τελειώνοντας παραθέτονται τα συμπεράσματα της εργασίας μου, τα προβλήματα που προκύπτουν στην πράξη και οι προτάσεις για την προσπέλαση αυτών για τη βελτίωση σχέσεων ιατρών και ασθενών.
description: The aim of the present thesis was the study of the importance of correct information and informed consent of patient prior to the surgical intervention. Initially, we get the historical throwback from Hippocrates until the present day through the declarations and the laws signed. Then, we mention the moral values of medical practice and the role of good communication lead to good information and consent during scheduled surgery and emergency situations. Furthermore, we analyzed the legislation on various categories of patients and the medical responsibility (liability, criminal and disciplinary responsibility) of the doctor. Finally, we present the conclusions, the problems and the solutions to improve the doctor and patient relations.
Correlation between magnetism and magnetocaloric effect in RCo2-based Laves phase compounds
Creators: name: Singh, Niraj K.
name: Suresh, K. G.
name: Nigam, A. K.
name: Malik, S. K.
name: Coelho, A. A.
name: Gama, S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: By virtue of the itinerant electron metamagnetism (IEM), the RCo2 compounds with R=Er, Ho and Dy are found to show first order magnetic transition at their ordering temperatures. The inherent instability of Co sublattice magnetism is responsible for the occurrence of IEM, which leads to interesting magnetic and related properties. The systematic studies of the variations in the magnetic and magnetocaloric properties of the RCo2-based compounds show that the magnetovolume effect plays a decisive role in determining the nature of magnetic transitions and hence the magnetocaloric effect (MCE) in these compound. It is found that the spin fluctuations arising due to the magnetovolume effect reduce the strength of IEM in these compounds, which subsequently lead to a reduction in the MCE. Most of the substitutions at the Co site are found to result in a positive magnetovolume effect, leading to an initial increase in the ordering temperature. Application of pressure, on the other hand, causes a reduction in the ordering temperature due to the negative magnetovolume effect. A comparative study of the magnetic and magnetocaloric properties of RCo2 compounds under various substitutions and applied pressure is presented. Analysis of the magnetization data using the Landau theory has shown that there is a strong correlation between the Landau coefficient (B) and the MCE. The variations seen in the order of magnetic transition and the MCE values seem to support the recent model proposed by Khmelevskyi and Mohn for the occurrence of IEM in RCo2 compounds.
Additional file 20: of Diel rewiring and positive selection of ancient plant proteins enabled evolution of CAM photosynthesis in Agave
Creators: name: Yin, Hengfu
name: Guo, Hao-Bo
name: Weston, David
name: Borland, Anne
name: Ranjan, Priya
name: Abraham, Paul
name: Jawdy, Sara
name: Wachira, James
name: Tuskan, Gerald
name: Tschaplinski, Timothy
name: Wullschleger, Stan
name: Guo, Hong
name: Hettich, Robert
name: M. Gross, Stephen
name: Wang, Zhong
name: Visel, Axel
name: Yang, Xiaohan
Publisher: name: figshare
Year: 2018
Subjects: subject: Biochemistry
subject: Molecular Biology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: Computational Biology

description: Table S14. Intrinsically disordered protein region (IDPR) in protein sequences under positive selection. (PDF 33 kb)
Remarks on the Zeros of the Associated Legendre Functions with Integral Degree
Creators: name: van Diejen, J. F.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 33C05

description: We present some formulas for the computation of the zeros of the integral-degree associated Legendre functions with respect to the order.
description: 7 pages, 2 figures
Irreducible multi-particle correlations in states without maximal rank
Creators: name: Zhou, D. L.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In a system of $n$ quantum particles, the correlations are classified into a series of irreducible $k$-particle correlations ($2\le k\le n$), where the irreducible $k$-particle correlation is the correlation appearing in the states of $k$ particles but not existing in the states of $k-1$ particles. A measure of the degree of irreducible $k$-particle correlation is defined based on the maximal entropy construction. By adopting a continuity approach, we overcome the difficulties in calculating the degrees of irreducible multi-particle correlations for the multi-particle states without maximal rank. In particular, we obtain the degrees of irreducible multi-particle correlations in the $n$-qubit stabilizer states and the $n$-qubit generalized GHZ states, which reveals the distribution of multi-particle correlations in these states.
description: 4 pages
Muon spin rotation measurements of the vortex state in vanadium: A comparative analysis using iterative and analytical solutions of the Ginzburg-Landau equations
Creators: name: Laulajainen, M.
name: Callaghan, F. D.
name: Kaiser, C. V.
name: Sonier, J. E.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We report muon spin rotation measurements on a single crystal of the marginal type-II superconductor V. The measured internal magnetic field distributions are modeled assuming solutions of the Ginzburg-Landau (GL) equations for an ideal vortex lattice obtained using (i) an iterative procedure developed by E.H. Brandt, Phys. Rev. Lett. 78, 2208 (1997) and (ii) a variational method. Both models yield qualitatively similar results. The magnetic penetration depth (lambda) and the GL coherence length (xi) determined from the data analysis exhibit strong field dependences, which are attributed to changes in the electronic structure of the vortex lattice. The zero-field extrapolated values of lambda and the GL parameter kappa agree well with values obtained by other experimental techniques that probe the Meissner state.
description: 10 pages, 15 figures, to be submitted to Physical Review B
Οι κοινωνικές αναπαραστάσεις εκπαιδευτικών και μαθητών για την πειθαρχία στη σχολική τάξη: Ο ρόλος του ιδανικού δασκάλου
Creators: name: Πέτσινα, Αθανασία Ιωάννη
Publisher: name: Aristotle University of Thessaloniki
Year: 2016
Subjects: πειθαρχία
διαχείριση της τάξης
ιδανικός δάσκαλος
discipline
classroom management
ideal teacher

description: Η θεματική της παρούσας εργασίας αφορά τις κοινωνικές αναπαραστάσεις εκπαιδευτικών και μαθητών για την πειθαρχία στη σχολική τάξη και τον ρόλο του ιδανικού δασκάλου. Στο θεωρητικό μέρος της εργασίας, διερευνάται το ιδανικό πρότυπο εκπαιδευτικού κατά την Σύγχρονη Παιδαγωγική και η πειθαρχία ως κομμάτι του εκπαιδευτικού ρόλου. Έπειτα, γίνεται περεταίρω εμβάθυνση στην έννοια πειθαρχία και διαχείριση της τάξης ως πτυχές του ρόλου αυτού, στα μοντέλα και τις σύγχρονες προσεγγίσεις της καθώς και τις εκφάνσεις της στην πολυπολιτισμική τάξη. Στο ερευνητικό μέρος, διερευνώνται οι κοινωνικές αναπαραστάσεις των εκπαιδευτικών και των μαθητών για τον ιδανικό δάσκαλο, τα χαρακτηριστικά του και την έννοια της πειθαρχίας στη σχολική τάξη. Το δείγμα της έρευνας αποτέλεσαν 15 εκπαιδευτικοί και 15 μαθητές δημόσιων δημοτικών σχολείων της περιοχής του Έβρου. Τα αποτελέσματα έδειξαν πως εκπαιδευτικοί και μαθητές διατηρούν μια αρκετά παραδοσιακή εικόνα για τον ιδανικό δάσκαλο. Οι περισσότερες αναφορές εστιάζουν σε ένα άτομο που αναλαμβάνει να μεταδώσει γνώσεις και συμπυκνώνει συγκεκριμένα παιδαγωγικά χαρακτηριστικά. Όσον αφορά την διαχείριση της τάξης, οι εκπαιδευτικοί κάνουν ελάχιστες αναφορές για εκείνη ως κομμάτι του ρόλου τους, ενώ οι μαθητές δείχνουν να σπουδαιολογούν κατά πολύ περισσότερο την αξία της ως χαρακτηριστικό του ιδανικού δάσκαλου και της ιδανικής τάξης.
description: The subject of the present thesis is the social representations of teachers and students towards school discipline and the role of the ideal teacher. In the theoretical part of the thesis, we are researching the model of the ideal teacher according to Modern Pedagogy and discipline as a part of the educational role. Furthermore, it is attempted an in detail examination of the concept of discipline and classroom management as parts of this role, as well as an analysis of its models and modern approaches designed for standard and multicultural classes. In the research part, we examine the social representations of teachers and students concerning the ideal teacher, its characteristics and the concept of school discipline. The research sample is consisted of 15 teachers and 15 students of public primary schools of the region Evros. The results indicated that both teachers and students maintain a quite traditional model of the ideal teacher in their minds. The majority of reports focus on a person that mainly is responsible for transferring knowledge to the students and that he possesses specific pedagogical characteristics. Regarding to the concept of classroom management, the teachers don’t seem to consider it a part of their role, when in the meantime students seem to value its significance as a feature of the ideal teacher and the ideal classroom.
description: Συνεργαζόμενα Τμήματα Πανεπιστήμιο Λε Μαν (Maine France, Γαλλία)
Variational secure cloud quantum computing
Creators: name: Shingu, Yuta
name: Takeuchi, Yuki
name: Endo, Suguru
name: Kawabata, Shiro
name: Watabe, Shohei
name: Nikuni, Tetsuro
name: Hakoshima, Hideaki
name: Matsuzaki, Yuichiro
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Variational quantum algorithms (VQAs) have been considered to be useful applications of noisy intermediate-scale quantum (NISQ) devices. Typically, in the VQAs, a parametrized ansatz circuit is used to generate a trial wave function, and the parameters are optimized to minimize a cost function. On the other hand, blind quantum computing (BQC) has been studied in order to provide the quantum algorithm with security by using cloud networks. A client with a limited ability to perform quantum operations hopes to have access to a quantum computer of a server, and BQC allows the client to use the server's computer without leakage of the client's information (such as input, running quantum algorithms, and output) to the server. However, BQC is designed for fault-tolerant quantum computing, and this requires many ancillary qubits, which may not be suitable for NISQ devices. Here, we propose an efficient way to implement the NISQ computing with guaranteed security for the client. In our architecture, only N+ 1 qubits are required, under an assumption that the form of ansatzes is known to the server, where N denotes the necessary number of the qubits in the original NISQ algorithms. The client only performs single-qubit measurements on an ancillary qubit sent from the server, and the measurement angles can specify the parameters for the ansatzes of the NISQ algorithms. No-signaling principle guarantees that neither parameters chosen by the client nor the outputs of the algorithm are leaked to the server. This work paves the way for new applications of NISQ devices.
Counter-discursive strategies in first-world migrant writing
Creators: name: Fachinger, Petra
Publisher: name: University of British Columbia
Year: 2008

description: This thesis offers an analytical discussion of contemporary fictional and autobiographical narratives by migrants who write in a language other than their mother tongue and/or grew up in a bilingual environment. While not all literature by ethnic minority writers is necessarily concerned with the experience of growing up in or living between cultures, the present study deals with those writers whose texts self-reflexively and counter-discursively seek to define and express individual identity at the interface of two or more cultures. The writers discussed not only move spatially between places but also shift emotionally and intellectually between different languages and cultures as well as literary texts from these cultures. The focus is on language and the literary text itself as it becomes the site for an interaction of cultural codes. The methodology adopted draws eclectically on theories which explore the space between" from anthropological, linguistic, post-colonial and feminist perspectives. The thesis examines different textual paradigms of countering dominant discourses as found in ten representative texts from Australia, Canada, Germany and the United States which have been chosen to cover a range of cultural experience. The texts discussed are: Angelika Fremd's Heartland and Josef Vondra's Paul Zwillinq; Caterina Edwards' The Lion's Mouth, Henry Kreisel's The Betrayal and Rachna Mara's Of Customs and Excise; Franco Biondi's Abschied der zerschellten Jahre: Novelle and Akif Pirincci's Tranen sind immer das Ende: Roman; Sandra Cisneros' The House on Mango Street, Eva Hoffman's Lost in Translation: A Life in a New Language and Richard Rodriguez' Hunger of Memory: The Education of Richard Rodriguez. It is shown that self-reflexive negotiation of Self and Other in the text takes different forms depending on the writer's ethnic and racial background, his/her gender and the adopted country's social and political attitudes toward the newcomer. Re-writing, however, which is understood as an intentional, political dialogue with specific texts, is a recurrent counter-discursive strategy in the texts discussed. Finally, the thesis argues that the re-writing of traditional literary genres, such as Novelle, short story cycle, autobiography, Bildungs roman and quest novel, rather than of a particular text, as in other post-colonial contexts, is the most prevalent form of "writing back" in migrant literature. Texts written by migrants not only creatively revise literary conventions, challenge the concept of “national literature" and undermine canonically established categories, but also defeat attempts to approach a text with a single "appropriate" theory to reveal the strategies and the effects of cultural hybridity.
On the space of oriented geodesics of hyperbolic 3-space
Creators: name: Georgiou, Nikos
name: Guilfoyle, Brendan
Publisher: name: arXiv
Year: 2007
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 51M09, 51M30

description: We construct a Kähler structure (${\mathbb{J}},Ω,{\mathbb{G}}$) on the space ${\mathbb{L}}({\mathbb{H}}^3)$ of oriented geodesics of hyperbolic 3-space ${\mathbb{H}}^3$ and investigate its properties. We prove that (${\mathbb{L}}({\mathbb{H}}^3),{\mathbb{J}})$ is biholomorphic to ${\mathbb{P}}^1\times{\mathbb{P}}^1-\barΔ$, where $\barΔ$ is the reflected diagonal, and that the Kähler metric ${\mathbb{G}}$ is of neutral signature, conformally flat and scalar flat. We establish that the identity component of the isometry group of the metric ${\mathbb{G}}$ on ${\mathbb{L}}({\mathbb{H}}^3)$ is isomorphic to the identity component of the hyperbolic isometry group. Finally, we show that the geodesics of ${\mathbb{G}}$ correspond to ruled minimal surfaces in ${\mathbb{H}}^3$, which are totally geodesic iff the geodesics are null.
description: 25 pages, AMS-LATEX, 4 figures, Version 2: new references, typos corrected, results on geodesics added
SOME COMMENTS ON THE PSYCHOLINGUISTIC FEATURES OF TEACHING READING AT NON-PHILOLOGICAL UNIVERSITY
Creators: name: Moydinova, Shohida
Publisher: name: Zenodo
Year: 2024

description: This article describes the role of reading in teaching a foreign language, its psycholinguistic features. In particular, the features of teaching reading in English in non-philological universities, types of reading and its relationship with other speech activities were discussed.
Euclidean Gibbs states of interacting quantum anharmonic oscillators
Creators: name: Kozitsky, Y.
name: Pasurek, T.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mathematical Physics (math-ph)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 82B10; 60J60; 60G60; 46G12; 46T12

description: A rigorous description of the equilibrium thermodynamic properties of an infinite system of interacting $ν$-dimensional quantum anharmonic oscillators is given. The oscillators are indexed by the elements of a countable set $\mathbb{L}\subset \mathbb{R}^d$, possibly irregular; the anharmonic potentials vary from site to site. The description is based on the representation of the Gibbs states in terms of path measures -- the so called Euclidean Gibbs measures. It is proven that: (a) the set of such measures $\mathcal{G}^{\rm t}$ is non-void and compact; (b) every $μ\in \mathcal{G}^{\rm t}$ obeys an exponential integrability estimate, the same for the whole set $\mathcal{G}^{\rm t}$; (c) every $μ\in \mathcal{G}^{\rm t}$ has a Lebowitz-Presutti type support; (d) $\mathcal{G}^{\rm t}$ is a singleton at high temperatures. In the case of attractive interaction and $ν=1$ we prove that $|\mathcal{G}^{\rm t}|>1$ at low temperatures. The uniqueness of Gibbs measures due to quantum effects and at a nonzero external field are also proven in this case. Thereby, a qualitative theory of phase transitions and quantum effects, which interprets most important experimental data known for the corresponding physical objects, is developed. The mathematical result of the paper is a complete description of the set $\mathcal{G}^{\rm t}$, which refines and extends the results known for models of this type.
description: 60 pages
Entanglement of Multipartite Schmidt-correlated States
Creators: name: Zhao, Ming-Jing
name: Fei, Shao-Ming
name: Wang, Zhi-Xi
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We generalize the Schmidt-correlated states to multipartite systems. The related equivalence under SLOCC, the separability, entanglement witness, entanglement measures of negativity, concurrence and relative entropy are investigated in detail for the generalized Schmidt-correlated states.
description: 10 pages
Correlated interface electron gas in infinite-layer nickelate versus cuprate films on SrTiO$_3$(001)
Creators: name: Geisler, Benjamin
name: Pentcheva, Rossitza
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Based on first-principles calculations including a Coulomb repulsion term, we identify trends in the electronic reconstruction of $A$NiO$_2$/SrTiO$_3$(001) ($A=$ Pr, La) and $A$CuO$_2$/SrTiO$_3$(001) ($A=$ Ca, Sr). Common to all cases is the emergence of a quasi-two-dimensional electron gas (q2DEG) in SrTiO$_3$(001), albeit the higher polarity mismatch at the interface of nickelates vs. cuprates to the nonpolar SrTiO$_3(001)$ substrate (${3+}/0$ vs. ${2+}/0$) results in an enhanced q2DEG carrier density. The simulations reveal a significant dependence of the interfacial Ti $3d_{xy}$ band bending on the rare-earth ion in the nickelate films, being $20$-$30\%$ larger for PrNiO$_2$ and NdNiO$_2$ than for LaNiO$_2$. Contrary to expectations from the formal polarity mismatch, the electrostatic doping in the films is twice as strong in cuprates as in nickelates. We demonstrate that the depletion of the self-doping rare-earth $5d$ states enhances the similarity of nickelate and cuprate Fermi surfaces in film geometry, reflecting a single hole in the Ni and Cu $3d_{x^2-y^2}$ orbitals. Finally, we show that NdNiO$_2$ films grown on a polar NdGaO$_3(001)$ substrate feature a simultaneous suppression of q2DEG formation as well as Nd~$5d$ self-doping.
description: 10 pages, 5 figures
High resolution spectra of bright central stars of bipolar planetary nebulae, and the question of magnetic shaping
Creators: name: Lee, T. -H.
name: Stanghellini, L.
name: Ferrario, L.
name: Wickramasinghe, D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present ESO NTT high resolution echelle spectroscopy of the central stars (CSs) of eight southern bipolar planetary nebulae (PNe) selected for their asymmetry. Our aim was to determine or place limits on the magnetic fields of the CSs of these nebulae, and hence to explore the role played by magnetic fields in nebular morphology and PN shaping. If magnetic fields do play a role, we expect these CSs to have fields in the range $10^2 - 10^7$ G from magnetic flux conservation on the reasonable assumption that they must evolve into the high field magnetic white dwarfs. We were able to place an upper limit of $\approx 20,000$ G to the magnetic fields of the central stars of He 2-64 and MyCn 18. The spectrum of He 2-64 also shows a P-Cygni profile in \ion{He}{1} $λ$5876 and $λ$6678, corresponding to an expanding photosphere with velocity $\sim$ 100 km s$^{-1}$. The detection of helium absorption lines in the spectrum of He 2-36 confirms the existence of a hot stellar component. We did not reach the necessary line detection for magnetic field analysis in the remaining objects. Overall, our results indicate that if magnetic fields are responsible for shaping bipolar planetary nebulae, these are not required to be greater than a few tens of kilogauss.
description: 32 pages, accepted for publication in the Astronomical Journal
Έρευνα με ερωτηματολόγιο για τη διαδικτυακή δεξιότητα
Creators: name: Νάστου, Δέσποινα Βασιλείου
Publisher: name: Aristotle University of Thessaloniki
Year: 2016
Subjects: Διαδικτυακή δεξιότητα
Δειγματοληπτική έρευνα
Ερωτηματολόγιο
Web intelligence
Survey
Questionnaire

description: Σκοπός της παρούσας διπλωματικής εργασίας είναι η μελέτη της διαδικτυακής δεξιότητας των μαθητών του Γυμνασίου. Οι υπολογιστές είναι αναπόσπαστο κομμάτι της καθημερινότητάς μας, οι οποίοι αποτελούν εργαλείο που βοηθά στην πραγματοποίηση γρήγορων υπολογισμών και εργασιών αλλά και στην ψυχαγωγία τον ελεύθερο χρόνο. Ακόμη, είναι ιδιαίτερα χρήσιμοι στην εκπαίδευση. Το διαδίκτυο είναι βασική πηγή πληροφοριών και οι μαθητές το χρησιμοποιούν ιδιαίτερα στο καθημερινό τους διάβασμα. Επιδίωξη της εργασίας είναι η διεξοδική εξέταση της ανάκτησης πληροφοριών μέσω διαδικτύου. Η εργασία παρουσιάζει τα αποτελέσματα δειγματοληπτικής έρευνας με ερωτηματολόγιο που διεξήχθη σε 294 μαθητές Γυμνασίου του νομού Φλώρινας. Γενικός στόχος της παρούσας έρευνας είναι να καταγραφεί πόσο εξοικειωμένοι είναι οι μαθητές με την εύρεση πληροφοριών μέσω διαδικτύου. Στη συνέχεια υπολογίζεται ο χρόνος που απαιτήθηκε για την εύρεση της απάντησης και ο αριθμός των βημάτων που χρειάστηκαν για την ανάκτηση της πληροφορίας. Για κάθε μία από τις παραπάνω δύο τυχαίες μεταβλητές υπολογίζονται τα μέτρα θέσης και διασποράς. Μέσω του συντελεστή μεταβλητότητας υπολογίζεται η συνάρτηση πυκνότητας πιθανότητας (σ.π.π). Τέλος, γίνεται έλεγχος καλής προσαρμογής των θεωρητικών τιμών συχνοτήτων της σ.π.π. που προκύπτει με τις παρατηρούμενες τιμές, με τη χρήση του X2-test (Chi-square test).
description: The aim of this thesis is the study of online skill of high school students. Computers are an integral part of our everyday lives, which help in doing quick calculations and operations and the entertainment leisure. They are also very useful in education. The internet is a key source of information and students use it particularly in their daily reading. Obtaining work is the thorough examination of information retrieval through the Internet. The paper presents the results of a sample survey with questionnaires conducted in 294 of the county high school students Florina.General objective of this research is to write down how familiar students are with finding information online. Then calculate the time required to find the answer and the number of steps needed to recover the information. For each of the above two random variables calculated by the position and measures of dispersion.Through the coefficient of variation calculated probability density function. Finally, there is a good fit of the pdf theoretical frequency values resulting in the observed values, with Chi-square test.
Efficient self-compression of ultrashort UV pulses in air-filled hollow-core photonic crystal fiber
Creators: name: Luan, Jie
name: Russell, Philip St. J.
name: Novoa, David
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We report generation of ultrashort UV pulses by soliton self-compression in kagomé-style hollow-core photonic crystal fiber filled with ambient air. Pump pulses with energy 2.6 uJ and duration 54 fs at 400 nm were compressed temporally by a factor of 5, to a duration of ~11 fs. The experimental results are supported by numerical simulations, showing that both Raman and Kerr effects play a role in the compression dynamics. The convenience of using ambient air, and the absence of glass windows that would distort the compressed pulses, makes the setup highly attractive as the basis of an efficient table-top UV pulse compressor.
description: 7 pages, 5 figures
ElephantBook: A Semi-Automated Human-in-the-Loop System for Elephant Re-Identification
Creators: name: Kulits, Peter
name: Wall, Jake
name: Bedetti, Anka
name: Henley, Michelle
name: Beery, Sara
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: African elephants are vital to their ecosystems, but their populations are threatened by a rise in human-elephant conflict and poaching. Monitoring population dynamics is essential in conservation efforts; however, tracking elephants is a difficult task, usually relying on the invasive and sometimes dangerous placement of GPS collars. Although there have been many recent successes in the use of computer vision techniques for automated identification of other species, identification of elephants is extremely difficult and typically requires expertise as well as familiarity with elephants in the population. We have built and deployed a web-based platform and database for human-in-the-loop re-identification of elephants combining manual attribute labeling and state-of-the-art computer vision algorithms, known as ElephantBook. Our system is currently in use at the Mara Elephant Project, helping monitor the protected and at-risk population of elephants in the Greater Maasai Mara ecosystem. ElephantBook makes elephant re-identification usable by non-experts and scalable for use by multiple conservation NGOs.
Τρισδιάστατη αποτύπωση των αρχαιοτήτων του σταθμού μετρό "Βενιζέλου"
Creators: name: Στεφάνου, Φίλιππος Αστερίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2016
Subjects: Σταθμός «Βενιζέλου»
Φωτογραμμετρική αποτύπωση
Αποτύπωση με ψηφιακό σαρωτή
Laser scanner
Multi image photogrammetry
Point cloud comparison

description: Η αποτύπωση της παρούσας διπλωματικής εργασίας, πραγματοποιήθηκε την άνοιξη του 2015, εν μέσω της συζήτησης για την απόσπαση ή διατήρηση των αρχαιοτήτων, οι οποίες εντοπίστηκαν κατά την διάρκεια των αρχαιολογικών εργασιών, στα πλαίσια της διάνοιξης του σταθμού ΜΕΤΡΟ «Βενιζέλου». Στόχος της αποτύπωσης υπήρξε η δημιουργία τρισδιάστατου νέφους σημείων, το οποίο δύναται να διατεθεί για την εκπόνηση μελέτης, για το ζήτημα της διατήρησης των αρχαιοτήτων και της ταυτόχρονης λειτουργίας του σταθμού. Στην περίπτωση της επιλογής της ολικής ή μερικής απόσπασης των αρχαιοτήτων, καθίσταται δυνατή η επανατοποθέτησή τους με την βέλτιστη ακρίβεια. Στην παρούσα μελέτη επιλέχθηκε η διερεύνηση του ζητήματος της ακρίβειας των μεθόδων που χρησιμοποιούνται στις αποτυπώσεις αρχαιολογικών χώρων και μνημείων. Για τον λόγο αυτό, πέραν της αποτύπωσης με την χρήση 3Δ ψηφιακού σαρωτή, πραγματοποιήθηκε και αποτύπωση με την μέθοδο της πολυεικονικής φωτογραμμετρίας και σύγκριση των μεταξύ τους αποτελεσμάτων. Τα συμπεράσματα τα οποία προέκυψαν μέσα από την σύγκριση αυτή είναι πολύτιμα καθώς εξετάζουν το ζήτημα της ακρίβειας των μεθόδων, σε πραγματική εφαρμογή με πολύ δυσμενείς συνθήκες.
description: The present thesis survey took place during the spring of 2015, amid the debate on whether the antiquities that were found during the excavation of the METRO station "Venizelos", should be detached or preserved in situ. The main target of the survey was the creation of a three-dimensional point cloud which can be utilized for further technical studies, on the issue of combining the in situ preservation with simultaneous operation of the METRO station. In case it is decided that those antiquities are to be removed, this can be done with the best possible accuracy. Another main feature of this study is investigating the issue of accuracy of the survey methods that are used for mapping archeological sites and monuments. For this reason, the survey was performed using two methods which were later compared, Laser Scanning and multi-image photogrammetry. The conclusions of this comparison are proved very useful as they are addressing the issue of accuracy of the methods in a real-life application with very adverse conditions.
Lattice Field Theory with the Sign Problem and the Maximum Entropy Method
Creators: name: Imachi, Masahiro
name: Shinno, Yasuhiko
name: Yoneyama, Hiroshi
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Although numerical simulation in lattice field theory is one of the most effective tools to study non-perturbative properties of field theories, it faces serious obstacles coming from the sign problem in some theories such as finite density QCD and lattice field theory with the $θ$ term. We reconsider this problem from the point of view of the maximum entropy method.
description: This is a contribution to the Proc. of the O'Raifeartaigh Symposium on Non-Perturbative and Symmetry Methods in Field Theory (June 2006, Budapest, Hungary), published in SIGMA (Symmetry, Integrability and Geometry: Methods and Applications) at http://www.emis.de/journals/SIGMA/
Ανάλυση και σύγκριση πολύπλοκων δικτύων του εγκεφάλου σε άτομα με ή χωρίς μαθηματικό άγχος κατά την μαθηματική επεξεργασία.
Creators: name: Γρηγοριάδου, Μαρία Πέτρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2016
Subjects: Μαθηματικό άγχος
Δίκτυα εγκεφάλου
Μνήμη εργασίας
Math anxiety
Brain networks
Working memory

description: Η παρούσα εργασία έχει σκοπό τη βιβλιογραφικής ανασκόπησης σχετικά με το Μαθηματικό άγχος. Επιπλέον, παρουσιάζεται το δίκτυο του εγκεφάλου ατόμων με ή χωρίς μαθηματικό άγχος κατά την επεξεργασία αριθμητικών υπολογισμών. Τα δεδομένα ελήφθησαν από φοιτητές μέσω ηλεκτροεγκεφαλογραφήματος. Τα δίκτυα του εγκεφάλου δημιουργήθηκαν για κάθε είδος εγκεφαλικών κυμάτων (άλφα 1, άλφα 2, βήτα, γάμμα, δέλτα, θήτα). Για τη δημιουργία των δικτύων χρησιμοποιήθηκε σαν μετρική το «φανταστικό μέρος της συνοχής» . Με βάση προηγούμενες απεικονίσεις δικτύων, υπολογίστηκαν μερικές χρήσιμες μετρικές όπως η βαθμική κεντρικότητα, η κεντρικότητα εγγύτητας, η πυκνότητα, το μέσο μήκος μονοπατιού, η κεντρικότητα ιδιοδιανυσμάτων, η μεταβατικότητα, ο συντελεστής σύμπλεξης και η αποτελεσματικότητα (συνολική κι τοπική). Η ανάλυση των αποτελεσμάτων αναμένεται να ρίξει φως σχετικά με την οργάνωση των δικτύων φλοιού και τις αλληλεπιδράσεις που προκύπτουν στον εγκέφαλο των ατόμων με ή χωρίς μαθηματικό άγχος και επιδρούν στην αποτελεσματικότητα (συνολική και τοπική) και στην πυκνότητα των εγκεφαλικών δικτύων. Τέλος, παρουσιάζονται κάποιες ενδιαφέρουσες σχετικές συσχετίσεις της Νευροεπιστήμης με τα Οικονομικά και προτείνονται ενδιαφέρουσες προτάσεις έρευνας που προέκυψαν κατά τη διάρκεια αυτής της εργασίας.
description: The current study aims to provide a literature review about math anxiety. Furthermore, the brain activation network of individuals, regarding their math-anxiety during the processing of arithmetic calculations and a working memory task is demonstrated. Data were obtained from university students through EEG recordings. The brain networks are constructed for each kind of brainwaves (Alpha 1, Alpha 2, Beta, Gamma, Delta, Theta). For the construction of the links of the networks, we use imaginary part of coherence as a metric. Based on previous network visualizations, some useful network measures such as degree centrality, betweeness centrality, density, characteristic path length, eigenvector centrality, transitivity, clustering coefficient and efficiency (local & global) are computed. Analysis of the results is expected to shed light on the organization of the cortical networks and on the interactions that occur in the brain of math-anxious and non math-anxious individuals and influence the efficiency (global and average local) and the density of their brain network. Finally, we cite some interesting connections of Neuroscience and Economics and we propose some interesting research directions that occured during this study.
Elicitation: Basic vocabulary and verb phrases
Creators: name: Ataya, Alieu Borbor
name: Mansaray, Kondeh
name: Rolle, Nicholas
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: lma

description: M4A and WAV files of recording. See "black notebook" (file bundle 2022-06.003) for the notes.
Online Offloading Scheduling for NOMA-Aided MEC Under Partial Device Knowledge
Creators: name: Hua, Meihui
name: Tian, Hui
name: Lyu, Xinchen
name: Ni, Wanli
name: Nie, Gaofeng
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Theory (cs.IT)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: By exploiting the superiority of non-orthogonal multiple access (NOMA), NOMA-aided mobile edge computing (MEC) can provide scalable and low-latency computing services for the Internet of Things. However, given the prevalent stochasticity of wireless networks and sophisticated signal processing of NOMA, it is critical but challenging to design an efficient task offloading algorithm for NOMA-aided MEC, especially under a large number of devices. This paper presents an online algorithm that jointly optimizes offloading decisions and resource allocation to maximize the long-term system utility (i.e., a measure of throughput and fairness). Since the optimization variables are temporary coupled, we first apply Lyapunov technique to decouple the long-term stochastic optimization into a series of per-slot deterministic subproblems, which does not require any prior knowledge of network dynamics. Second, we propose to transform the non-convex per-slot subproblem of optimizing NOMA power allocation equivalently to a convex form by introducing a set of auxiliary variables, whereby the time-complexity is reduced from the exponential complexity to $\mathcal{O} (M^{3/2})$. The proposed algorithm is proved to be asymptotically optimal, even under partial knowledge of the device states at the base station. Simulation results validate the superiority of the proposed algorithm in terms of system utility, stability improvement, and the overhead reduction.
description: 15 pages, 6 figures. Accepted for publication in IEEE Internet of Things Journal
Single Inclusive Distribution and Two-Particle Correlations Inside One Jet at "Modified Leading Logarithmic Approximation" of Quantum Chromodynamics II : Steepest Descent Evaluation at Small X
Creators: name: Ramos, Redamy Perez
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The MLLA single inclusive distribution inside one high energy (gluon) jet at small x is estimated by the steepest descent method. Its analytical expression is obtained outside the "limiting spectrum". It is then used to evaluate 2-particle correlations at the same level of generality. The dependence of both observables on the ratio between the infrared cutoff Q\_0 and Lambda\_QCD is studied. Fong & Webber's results for correlations are recovered at the limits when this ratio goes to 1 and when one stays close to the peak of the single inclusive distribution.
description: LaTeX, 22 pages, 18 .eps figures
Liquid drop splashing on smooth, rough and textured surfaces
Creators: name: Xu, Lei
Publisher: name: arXiv
Year: 2007
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Splashing occurs when a liquid drop hits a dry solid surface at high velocity. This paper reports experimental studies of how the splash depends on the roughness and the texture of the surfaces as well as the viscosity of the liquid. For smooth surfaces, there is a "corona" splash caused by the presence of air surrounding the drop. There are several regimes that occur as the velocity and liquid viscosity are varied. There is also a "prompt" splash that depends on the roughness and texture of the surfaces. A measurement of the size distribution of the ejected droplets is sensitive to the surface roughness. For a textured surface in which pillars are arranged in a square lattice, experiment shows that the splashing has a four-fold symmetry. The splash occurs predominantly along the diagonal directions. In this geometry, two factors affect splashing the most: the pillar height and spacing between pillars.
description: 9 pages, 11 figures