cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Impurity States in Graphene
Creators: name: Wehling, T. O.
name: Balatsky, A. V.
name: Katsnelson, M. I.
name: Lichtenstein, A. I.
name: Scharnberg, K.
name: Wiesendanger, R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Defects in graphene are of crucial importance for its electronic and magnetic properties. Here impurity effects on the electronic structure of surrounding carbon atoms are considered and the distribution of the local densities of states (LDOS) is calculated. As the full range from near field to the asymptotic regime is covered, our results are directly accessible by scanning tunnelling microscopy (STM). We also include exchange scattering at magnetic impurities and eludicate how strongly spin polarized impurity states arise.
description: 4 pages, 6 figures
Bounds on heat transport for convection driven by internal heating
Creators: name: Arslan, Ali
name: Fantuzzi, Giovanni
name: Craske, John
name: Wynn, Andrew
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The mean vertical heat transport $\langle wT \rangle$ in convection between isothermal plates driven by uniform internal heating is investigated by means of rigorous bounds. These are obtained as a function of the Rayleigh number $R$ by constructing feasible solutions to a convex variational problem, derived using a formulation of the classical background method in terms of quadratic auxiliary functions. When the fluid's temperature relative to the boundaries is allowed to be positive or negative, numerical solution of the variational problem shows that best previous bound $\langle wT \rangle \leq 1/2$ can only be improved up to finite $R$. Indeed, we demonstrate analytically that $ \langle wT \rangle \leq 2^{-21/5} R^{1/5}$ and therefore prove that $\langle wT\rangle< 1/2$ for $R < 65\,536$. However, if the minimum principle for temperature is invoked, which asserts that internal temperature is at least as large as the temperature of the isothermal boundaries, then numerically optimised bounds are strictly smaller than $1/2$ until at least $R =3.4\times 10^{5}$. While the computational results suggest that the best bound on $\langle wT\rangle$ approaches $1/2$ asymptotically from below as $R\rightarrow \infty$, we prove that typical analytical constructions cannot be used to prove this conjecture.
description: 33 pages, 12 figures
Research Data Management - Train the Trainer (overview)
Creators: name: Schleußinger, Maurice
name: Stegemann, Jessica
Publisher: name: Zenodo
Year: 2019
Subjects: FDM
Forschungsdatenmanagement
RDM
Research Data Management

description: Presentation slides for the train-the-trainer seminar in Research Data Management of the FoDaKo-project: https://fodako.de
Electronic and dynamical properties of CeRh$_{2}$As$_{2}$: Role of Rh$_{2}$As$_{2}$ layers and expected hidden orbital order
Creators: name: Ptok, Andrzej
name: Kapcia, Konrad J.
name: Jochym, Paweł T.
name: Łażewski, Jan
name: Oleś, Andrzej M.
name: Piekarz, Przemysław
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Recently discovered heavy fermion CeRh$_{2}$As$_{2}$ compound crystallizes in the nonsymmorphic $P4/nmm$ symmetry, which enables the occurrence of topological protection. Experimental results show that this material exhibits unusual behavior, which is manifested by the appearance of two superconducting phases. In this work, we uncover and discuss a role of Rh$_{2}$As$_{2}$ layers and their impact on the electronic and dynamical properties of the system. The location of Ce atoms between two non-equivalent layers allows for the realization of hidden orbital order. We point out that the electronic band structure around the Fermi level is associated mostly with Ce $4f$ and Rh $4d$ orbitals and suggest the occurrence of the Lifshitz transition induced by the external magnetic field. We discuss also the role played by the $f$--$d$ orbital hybridization in the electronic band structure.
description: 8 pages, 5 figures; Supplemental Material: 10 pages, 8 figures
The mothers' status: two years after undergoing a caesarean-section in a rural emergency obstetrics care centre in Burundi
Creators: name: W Van Den Boogaard
name: E De Plecker
name: M Manzi
name: S Caluwaerts
name: K Nanan-N'zeth
name: P Alders
name: W Etienne
name: B Duchenne
name: J Ndereye
name: J Manirampa
name: R Zachariah
Publisher: name: F1000Research
Year: 2015

description: Since 2008, MSF has offered emergency obstetrics and neonatal care (EmONC) through a dedicated hospital in rural Burundi. About half of all annual emergency interventions are Caesarean-sections. Due to the high risk of uterine rupture and maternal death in sub-Sequent pregnancies, such women are counselled to wait at least 24 months for another pregnancy (so that the uterine scar heals well) and ensure hospital delivery. Two years post Caesarean-section, we determined the:

a) uptake of family planning (FP) at hospital discharge;

b) number who became pregnant

c) inter-pregnancy interval (IPI);

d) number with hospital delivery;

e) frequency of uterine rupture and maternal death.This first community-based follow up study conducted two years after Caesarean section shows that the acceptance of family planning per-se did not influence the interpregnancy- interval. Socio-cultural factors are probably playing a more important role in child spacing. Whilst this needs specific investigation, research on how to find ways to enhance early engagement of husbands is of priority. Furthermore, reasons why vulnerable women still end up delivering outside hospital when they should have had access needs to be investigated.
Waiting for adoption : Coping with uncertainty
Creators: name: Frank, Sharon Lynn
Publisher: name: University of British Columbia
Year: 2009

description: Waiting for adoption has been acknowledged in the literature as potentially problematic and stressful, yet this has not been the subject of research. In Saskatchewan during the 1980s, the supply of children available for adoption has diminished and the demand for adoption by infertile couples has increased. One of the results of this imbalance has been increased waiting times for prospective adopters. Guided by grounded theory, this qualitative, exploratory, retrospective study of the experience of waiting for adoption focuses upon the period of time between agency approval of the adoption application and the selection or placement of a child. Data was gathered by single occasion interviews with nine adoptive families. Coping with uncertainty is the central issue for prospective adopters who enter the waiting period with expectation and hopefulness about their desire to adopt. Primary coping strategies are problem-focused, such as information search and mobilization of support, or emotion-focused, such as denial or distancing. Gender differences in coping strategies were identified. Discrepancies between expected waiting time and experienced waiting time are a key determinate of uncertainty strain. Sensitivity to the passage of time heightens over the course of waiting and perceptions of social support resources may change if they fail to meet waiting adopters' expressed needs for information and support. Perceptions of social workers tended to change as waiting uncertainty increased; they were found to be less accessible, supportive or well-informed. The Adoptive Parents Association was found to be the most consistent and reliable source of information and support. Revising expectations of waiting time appears to provide the most effective management of uncertainty strain. These findings are preliminary and further study is required to confirm and expand them further.
Stellar Rotation: A Clue to the Origin of High Mass Stars?
Creators: name: Wolff, S. C.
name: Strom, S. E.
name: Dror, D.
name: Lanz, L.
name: Venn, K.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the results of a study aimed at assessing whether low and high mass stars form similarly. Our approach is (1) to examine the observed projected rotational velocities among a large sample of newly-formed stars spanning a range in mass between 0.2 and 50 M ; and (2) to search for evidence of a discontinuity in rotational properties that might indicate a difference in the stellar formation process at some characteristic mass. Our database includes both recently published values of v sin i for young intermediate- and low- mass stars in Orion, as well as new observations of O stars located in young clusters and OB associations. We find that the median of the quantity v_obs/v_c (observed rotational speed/equatorial breakup velocity) is typically about 0.15 and shows no evidence of a discontinuity over the full range of stellar masses, while the quantity Jsini/M (derived angular momentum per unit mass) exhibits a slow, monotonic rise with increasing mass with no evidence of a discontinuity. We suggest that these observations are most simply interpreted as indicative of a single stellar formation and angular momentum regulation mechanism: one that results in rotation rates well below breakup, and angular momenta per unit mass that differ systematically by no more than a factor of 3-4 over a mass range spanning a factor of 250.
description: 19 pages, two tables, 2 figures
Μεγάλα Δεδομένα και Εφοδιαστική Αλυσίδα
Creators: name: Βαϊνά, Ελευθερία Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Business Intelligence Technology
Big Data
Qlik View Software
Τεχνολογία επιχειρησιακής νοημοσύνης
Μεγάλος όγκος δεδομένων

description: Business has always wanted to derive insights from information in order to make better, smarter, real time, fact based decisions. It is this demand for depth of knowledge that has fueled the growth of big data tools and platforms. In this master thesis we introduce the background of Big Data, and we present the benefits they offer today in business. The software we examine is Qlik View. First we make a theoretical approach combined with practical experiences. The benefits of Qlik View software are presented through the analysis of our real data. Αdditionally we made the same data analysis with Microsoft BI software, in order to compare the two tools, and figure out tha basic defferencies. The contribution of this diploma thesis is the presentation of the benefits of this system and to offer to companies’ a modern software through which the company can analyze quickly and flexibly the large amount of data it collects daily in order to get better business decisions in time in order to remain ahead of the competition.
description: Οι επιχειρήσεις ανέκαθεν προσπαθούσαν να αντλήσουν τις όσο το δυνατόν καλύτερες πληροφορίες ώστε να καταφέρουν να πραγματοποιούν καλύτερες και πιο έξυπνες, πραγματικές αποφάσεις, βασισμένες σε γεγονότα. Αυτή η απαίτηση για εμβάθυνση γνώσεων έχει τροφοδοτήσει την ανάπτυξη μεγάλων εργαλείων δεδομένων και πλατφορμών.Σκοπός αυτής της μεταπτυχιακής εργασίας είναι η εισαγωγή στον κόσμο των Μεγάλων Δεδομένων ‘’BIG DATA’’, και η παρουσίαση των όσων προσφέρουν σήμερα στον κόσμο των επιχειρήσεων. Το λογισμικό που εξετάσαμε είναι το Qlik View.Αρχικά κάνουμε μια θεωρητική προσέγγιση σε συνδυασμό με πρακτικές προσεγγίσεις..Τα οφέλη του λογισμικού Qlik View παρουσιάστηκαν μέσω της ανάλυσης πραγματικών δεδομένων.Επιπλέον, πραγματοποιήθηκε η ίδια ανάλυση δεδομένων με το λογισμικό Microsoft BI, για να συγκρίνουμε τα δύο εργαλεία και να υπολογίσουμε τις βασικές αποκλίσειςΗ συμβολή αυτής της διπλωματικής εργασίας είναι η παρουσίαση των πλεονεκτημάτων αυτού του συστήματος και η προσφορά των σύγχρονων λογισμικων στις εταιρείες μέσω των οποίων οι εταιρείες μπορούν να αναλύσουν γρήγορα και με ευελιξία το μεγάλο όγκο των δεδομένων που συλλέγουν καθημερινά ώστε να λαμβάνουν τις καλύτερες επιχειρηματικές αποφάσεις εγκαίρως προκειμένου να παραμένουν μπροστά στον ανταγωνισμό.
Strong dineutron correlation in 8He and 18C
Creators: name: Hagino, K.
name: Takahashi, N.
name: Sagawa, H.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the spatial structure of four valence neutrons in the ground state of $^8$He and $^{18}$C nuclei using a core+4$n$ model. For this purpose, we employ a density-dependent contact interaction among the valence neutrons, and solve the five-body Hamiltonian in the Hartree-Fock-Bogoliubov (HFB) approximation. We show that two neutrons with the coupled spin of $S$=0 exhibit a strong dineutron correlation around the surface of these nuclei, whereas the correlation between the two dineutrons is much weaker. Our calculation indicates that the probability of the (1p$_{3/2})^4$ and [(1p$_{3/2})^2$ (p$_{1/2})^2$] configurations in the ground state wave function of $^8$He nucleus is 34.9% and 23.7%, respectively. This is consistent with the recent experimental finding with the $^8$He($p,t)^6$He reaction, that is, the ground state wave function of $^8$He deviates significantly from the pure (1p$_{3/2})^4$ structure.
description: 10 pages, 9 figures, 3 tables
Use of symphysiotomy in MSF projects: survey of service providers
Creators: name: Price, Debbie
name: Kamalini Lokuge
name: Danhof, Jeltje
name: Lekkerkerker, Michiel
name: Shanks, Leslie
Publisher: name: F1000Research
Year: 2015

description: We surveyed MSF field staff about their perception of, and experience with, symphysiotomy to identify provider-level barriers and enabling factors to its use with the aim to determine provider-targeted interventions for improving service provision.Symphysiotomy is a safe, simple, life-saving procedure that belongs in the armamentarium of clinicians working in MSF maternities. Our survey indicates that most MSF practitioners understand the indications correctly but in practice are reluctant to offer or utilise the procedure when indicated.
title: Viking Fire: A Practical and Theoretical Exploration of the Historical Novel
Creators: name: Hill, Justin
Publisher: name: Goldsmiths, University of London
Year: 2019

description: This PhD thesis consists of part of historical novel, Viking Fire, and an accompanying critical thesis. The novel recounts the life of Harald Sigurdson, King of Norway (c. 1015 – 25 September 1066) better known by his posthumous nickname Harald Hardrada. The work was published by Little, Brown, on September 22nd, 2016 and was selected by The Times as one of their Books of the Year, 2016. The critical essay will follow the novel. It is structured into four chapters. Chapter One will explain the initial inspiration for the series of novels and will examine how I navigated the major sources for the period and combined them with non-contemporaneous material in my creative process. Chapter Two will provide the theoretical framework for this thesis, reviewing some of the major theoretical modellings of the historical novel, address how the historical novel fits into a larger body of historical writing, and how the historical novel negotiates the patchy historical record. Chapter Three is designed to illustrate and explore further some of the theoretical models related in Chapter Two and, more importantly, to allow me to trace, selectively, some of the literary-historical developments of the historical novel in Britain, how the selected novelists responded to what might be called ‘the historical sublime’, how they brought a sense of verisimilitude to their work, and how they represented their own research for their novels. Chapter Four is a personal essay which deals at length with my aims and inspiration as a writer, the positioning of the novel, how I created a fictional Harald Hardrada, and the linguistic choices I made for the novel. Finally, this chapter will examine how this critical thesis informed the creative part of this thesis, and altered my own reaction to the historical sublime, that is the effect produced by the lack of evidence that the past presents to us.
Physical Properties of Massive Compact Starburst Galaxies with Extreme Outflows
Creators: name: Perrotta, Serena
name: George, Erin R.
name: Coil, Alison L.
name: Tremonti, Christy A.
name: Rupke, David S. N.
name: Davis, Julie D.
name: Diamond-Stanic, Aleksandar M.
name: Geach, James E.
name: Hickox, Ryan C.
name: Moustakas, John
name: Petter, Grayson C.
name: Rudnick, Gregory H.
name: Sell, Paul H.
name: Swiggum, Cameren
name: Whalen, Kelly E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present results on the nature of extreme ejective feedback episodes and the physical conditions of a population of massive ($\rm M_* \sim 10^{11} M_{\odot}$), compact starburst galaxies at z = 0.4-0.7. We use data from Keck/NIRSPEC, SDSS, Gemini/GMOS, MMT, and Magellan/MagE to measure rest-frame optical and near-IR spectra of 14 starburst galaxies with extremely high star formation rate surface densities (mean $\rm Σ_{SFR} \sim 3000 \,M_{\odot} yr^{-1} kpc^{-2}$) and powerful galactic outflows (maximum speeds v$_{98} \sim$ 1000-3000 km s$^{-1}$). Our unique data set includes an ensemble of both emission [OII]$λλ$3726,3729, H$β$, [OIII]$λλ$4959,5007, H$α$, [NII]$λλ$6548,6583, and [SII]$λλ$6716,6731) and absorption MgII$λλ$2796,2803, and FeII$λ$2586) lines that allow us to investigate the kinematics of the cool gas phase (T$\sim$10$^4$ K) in the outflows. Employing a suite of line ratio diagnostic diagrams, we find that the central starbursts are characterized by high electron densities (median n$_e \sim$ 530 cm$^{-3}$), and high metallicity (solar or super-solar). We show that the outflows are most likely driven by stellar feedback emerging from the extreme central starburst, rather than by an AGN. We also present multiple intriguing observational signatures suggesting that these galaxies may have substantial Lyman continuum (LyC) photon leakage, including weak [SII] nebular emission lines. Our results imply that these galaxies may be captured in a short-lived phase of extreme star formation and feedback where much of their gas is violently blown out by powerful outflows that open up channels for LyC photons to escape.
Evaluation of three methods for calculating statistical significance when incorporating a systematic uncertainty into a test of the background-only hypothesis for a Poisson process
Creators: name: Cousins, Robert D.
name: Linnemann, James T.
name: Tucker, Jordan
Publisher: name: arXiv
Year: 2007
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: Hypothesis tests for the presence of new sources of Poisson counts amidst background processes are frequently performed in high energy physics (HEP), gamma ray astronomy (GRA), and other branches of science. While there are conceptual issues already when the mean rate of background is precisely known, the issues are even more difficult when the mean background rate has non-negligible uncertainty. After describing a variety of methods to be found in the HEP and GRA literature, we consider in detail three classes of algorithms and evaluate them over a wide range of parameter space, by the criterion of how close the ensemble-average Type I error rate (rejection of the background-only hypothesis when it is true) compares with the nominal significance level given by the algorithm. We recommend wider use of an algorithm firmly grounded in frequentist tests of the ratio of Poisson means, although for very low counts the over-coverage can be severe due to the effect of discreteness. We extend the studies of Cranmer, who found that a popular Bayesian-frequentist hybrid can undercover severely when taken to high Z values. We also examine the profile likelihood method, which has long been used in GRA and HEP; it provides an excellent approximation in much of the parameter space, as previously studied by Rolke and collaborators.
description: In v4, added line to Table 1 so that Z_PL is given separately for L_G and L_P; made numerics in Z_PL identical to C++ code which is now posted at http://phystat.org/0811001 . In v3, fixed typos and made other minor changes to v2, so as to be materially the same as version in NIM. v2 was a major revision with new material
Big Data and Tableau
Creators: name: Μαχαιρίδου, Σοφία Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Business Intelligence Technology
Big Data
Tableau software
Τεχνολογία Επιχειρησιακής Νοημοσύνης
Μεγάλος όγκος δεδομένων
Λογισμικό Tableau

description: The amount of data produced, used and stored in our days is growing significantly and is bigger than in the past. There are many reasons to describe this continuous increase. First, more users globally have internet access by using their laptops, tablets or smart phones. Furthermore, the Internet of Things played an important role because all devices today are connected to the internet and have sensors that send, receive and produce data. Thus, new analytics techniques should be created so the vast amounts of data generated can be managed efficiently. Also, new tools need to be developed to process those data. Big Data as a Service and its goal is to make the whole procedure of Big Data analytics simpler and give companies the opportunity for further business intelligence. In this dissertation, we first introduce the general background of Big Data and review related techniques and tools. Then we analyze and try to define the Big Data as the new trend in it. We also present software Tableau with a theoretical approach combined with practical experiences. In addition, we use the Tibco Spotfire Cloud to make a comparison with the Tableau software. At the end, we conclude with the comparison of the Tableau and Tibco Spotfire and provide important insights for buyers selecting suitable Business Intelligence software to meet their business needs.
description: Ο όγκος των δεδομένων που παράγονται, χρησιμοποιούνται και αποθηκεύονται στις μέρες μας αυξάνεται σημαντικά και είναι μεγαλύτερος από ότι στο παρελθόν. Υπάρχουν πολλοί λόγοι που περιγράφουν την συνεχόμενη αύξηση. Πρώτον, περισσότεροι χρήστες παγκοσμίως έχουν πρόσβαση στο ίντερνετ χρησιμοποιώντας φορητές συσκευές. Επίσης, το Διαδίκτυο των πραγμάτων, έπαιξε έναν σημαντικό ρόλο καθώς κάθε συσκευή σήμερα είναι συνδεδεμένη με το διαδίκτυο και έχει αισθητήρες που στέλνουν, λαμβάνουν και παράγουν δεδομένα. Για αυτό νέες τεχνολογίες ανάλυσης πρέπει να αναπτυχθούν για να μπορούν να διαχειριστούν αποτελεσματικά τον τεράστιο όγκο δεδομένων. Τα μεγάλα δεδομένα σαν υπηρεσία στοχεύουν στην απλοποίηση της ανάλυσης και στο να δώσουν την ευκαιρία στις εταιρίες για περαιτέρω ανάπτυξη της Επιχειρησιακής νοημοσύνης. Στην διπλωματική εργασία, πρώτα κάνουμε την εισαγωγή στο γενικό υπόβαθρο των μεγάλων δεδομένων και ανασκόπηση των σχετικών τεχνολογιών και εργαλείων. Έπειτα αναλύουμε και προσπαθούμε να ορίσουμε τα μεγάλα δεδομένα σαν νέα τάση. Επίσης παρουσιάζουμε το Tableau με μια θεωρητική προσέγγιση συνδυασμένη με πρακτική εφαρμογή. Επιπρόσθετα, χρησιμοποιούμε το Tibco Spotfire Cloud για να κάνουμε μια σύγκριση με το λογισμικό Tableau. Τέλος, καταλήγουμε με τη σύγκριση του Tableau και Tibco Spotfire και παρέχουμε σημαντικά αποτελέσματα για τους αγοραστές που επιλέγουν λογισμικά επιχειρησιακής νοημοσύνης κατάλληλα σύμφωνα με τις επιχειρησιακές ανάγκες τους.
Multi-GPU SNN Simulation with Static Load Balancing
Creators: name: Bautembach, Dennis
name: Oikonomidis, Iason
name: Argyros, Antonis
Publisher: name: arXiv
Year: 2021
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Machine Learning (cs.LG)
subject: Performance (cs.PF)
subject: FOS: Computer and information sciences

description: We present a SNN simulator which scales to millions of neurons, billions of synapses, and 8 GPUs. This is made possible by 1) a novel, cache-aware spike transmission algorithm 2) a model parallel multi-GPU distribution scheme and 3) a static, yet very effective load balancing strategy. The simulator further features an easy to use API and the ability to create custom models. We compare the proposed simulator against two state of the art ones on a series of benchmarks using three well-established models. We find that our simulator is faster, consumes less memory, and scales linearly with the number of GPUs.
description: Camera-ready version, accepted to IJCNN 2021
การประยุกต์ระบบสารสนเทศทางภูมิศาสตร์เพื่อการคัดเลือกพื้นที่ปลูกยางพาราในอำเภอเขาชัยสน จังหวัดพัทลุง
Creators: name: ปุณยนุช  รุธิรโก
name: วรรณพร  จันทร์เอียด
name: โสรยา  สืบสง
Publisher: name: มหาวิทยาลัยหาดใหญ่
Year: 2558
Subjects: ยางพารา , การปลูกยางพารา , ระบบสารสนเทศทางภูมิศาสตร์

description: 1, 13, วารสารหาดใหญ่วิชาการ
Transient phenomena from gas-erupting neutron stars
Creators: name: Li, Huiquan
name: Wang, Jiancheng
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Starquakes probably occur in rapidly spinning or ultra high field neutron stars. In this article, we argue that highly compressed gas containing electron-positron pairs could evaporate and erupt from inside the neutron star when a crack forms and then heals during a starquake. Under the influence of the existing oscillation modes of the star, the crack may have sufficiently large size and long lifetime. An appropriate amount of gas can erupt into the magnetosphere with relativistic and nearly uniform velocity, producing various transient and bursting phenomena.
description: 4 pages, no figure
Internal Language Model Training for Domain-Adaptive End-to-End Speech Recognition
Creators: name: Meng, Zhong
name: Kanda, Naoyuki
name: Gaur, Yashesh
name: Parthasarathy, Sarangarajan
name: Sun, Eric
name: Lu, Liang
name: Chen, Xie
name: Li, Jinyu
name: Gong, Yifan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Audio and Speech Processing (eess.AS)
subject: Artificial Intelligence (cs.AI)
subject: Computation and Language (cs.CL)
subject: Machine Learning (cs.LG)
subject: Sound (cs.SD)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: The efficacy of external language model (LM) integration with existing end-to-end (E2E) automatic speech recognition (ASR) systems can be improved significantly using the internal language model estimation (ILME) method. In this method, the internal LM score is subtracted from the score obtained by interpolating the E2E score with the external LM score, during inference. To improve the ILME-based inference, we propose an internal LM training (ILMT) method to minimize an additional internal LM loss by updating only the E2E model components that affect the internal LM estimation. ILMT encourages the E2E model to form a standalone LM inside its existing components, without sacrificing ASR accuracy. After ILMT, the more modular E2E model with matched training and inference criteria enables a more thorough elimination of the source-domain internal LM, and therefore leads to a more effective integration of the target-domain external LM. Experimented with 30K-hour trained recurrent neural network transducer and attention-based encoder-decoder models, ILMT with ILME-based inference achieves up to 31.5% and 11.4% relative word error rate reductions from standard E2E training with Shallow Fusion on out-of-domain LibriSpeech and in-domain Microsoft production test sets, respectively.
description: 5 pages, ICASSP 2021
ผลของการสร้างกระบวนการเรียนรู้ต่อการพัฒนาการดำเนินงานด้านอนามัยสิ่งแวดล้อมขององค์การบริหารส่วนตำบล
Creators: name: โสมศิริ  เดชารัตน์
Publisher: name: มหาวิทยาลัยหาดใหญ่
Year: 2558
Subjects: การสร้างกระบวนการเรียนรู้ , อนามัยสิ่งแวดล้อม , องค์การบริหารส่วนตำบล

description: 1, 13, วารสารหาดใหญ่วิชาการ
Revelation of Weak Northern Thai Local Administration Internal Auditing in Detecting Risks
Creators: name: Arus  Kongrungchok
Publisher: name: มหาวิทยาลัยหาดใหญ่
Year: 2558
Subjects: Internal auditing , Common risks , Local administration , North of Thailand

description: 1, 13, วารสารหาดใหญ่วิชาการ
Standing Wave Solutions in Twisted Multicore Fibers
Creators: name: Parker, Ross
name: Aceves, Alejando
Publisher: name: arXiv
Year: 2021
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 39A30, 37K60

description: In the present work, we consider the existence and spectral stability of standing wave solutions to a model for light propagation in a twisted multi-core fiber with no gain or loss of energy. Numerical parameter continuation experiments demonstrate the existence of standing wave solutions for sufficiently small values of the coupling parameter. Furthermore, standing waves exhibiting optical Aharonov-Bohm suppression, where there is a single waveguide which remains unexcited, exist when the twist parameter $ϕ$ and the number of waveguides $N$ is related by $ϕ= π/N$. Spectral computations and numerical timestepping simulations suggest that standing wave solutions where the energy is concentrated in a single site are neutrally stable. Solutions with asymmetric coupling and multi-pulse solutions are also briefly explored.
description: 10 pages, 16 figures
Broad-Band High-Energy Emission of the Gamma-ray Binary System LS 5039: Spectral and Temporal Features using NuSTAR and Fermi Observations
Creators: name: Yoneda, Hiroki
name: Khangulyan, Dmitry
name: Enoto, Teruaki
name: Makishima, Kazuo
name: Mine, Kairi
name: Mizuno, Tsunefumi
name: Takahashi, Tadayuki
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report on detailed analysis of the hard X-ray and GeV gamma-ray spectra of LS 5039, one of the brightest gamma-ray binary system in the Galaxy. The NuSTAR observation covering its entire orbit in 2016 allowed us for the first time to study the orbital variability of the spectrum above 10 keV. The hard X-ray spectrum is well described with a single power-law component up to 78 keV. The X-ray flux showed a slight deviation from those observed previously with Suzaku in 2007. The fast X-ray brightening observed with Suzaku, around the inferior conjunction, was not observed in this observation. We also analyzed 11 years of Fermi Large Area Telescope data of LS 5039. The GeV spectrum around the inferior conjunction was well described with two non-thermal components; a power law with a photon index of $\sim 3$ and a cut-off power law with a cutoff energy of $\sim 2$ GeV. The orbital flux variability also changed gradually around a few GeV. These results indicate that there are two emission components in the GeV band, and the dominant component above $\sim 1$ GeV does not depend on the orbital phase. By combining these results, we update the spectral energy distribution of LS 5039 with the highest available statistics. Theoretical models proposed so far cannot explain the obtained multi-wavelength spectrum, especially the emission from $\sim$ 1 MeV to $\sim$ 400 MeV, and we discuss a possibility that particle acceleration in LS 5039 is different from the shock acceleration.
description: 19 pages, 15 figures, 8 tables, accepted for publication in ApJ
“A Difficult Dinner Companion”: Canadian-American Relations During the First Taiwan Strait Crisis, 1954-1955
Creators: name: Walker, Fraser Cameron
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2019
Subjects: History
Canada
United States of America

description: During the opening decade of the Cold War, Canada, under the leadership of Liberal Prime Minister Louis St. Laurent and Secretary of State for External Affairs Lester B. Pearson, experienced a heightened sense of influence on global affairs, often described as the “Golden Age of Canadian Diplomacy.” This state of affairs led Canada to believe that it could punch above its weight and subsequently influence the United States of America’s foreign policy. Using the First Taiwan Strait Crisis as a microcosm of this “Golden Age”, understanding America’s behaviour during the crisis, and Canada’s involvement throughout, brings into question the validity of Canada’s grand influence and tempers the idea that Canada could significantly influence America’s policies. Beginning with the memoirs and biographies of the diplomats of the 1950s and then juxtaposing sources from the Canadian Department of External Affairs and American State Department, this thesis demonstrates that Canada did not play a significant part in the First Taiwan Strait Crisis. This is an odd result, considering that this crisis, which could have had devastating consequences for Canada if it had expanded from just the Offshore Islands, was a perfect opportunity for a country that was supposedly experiencing a Golden Age to flex its diplomatic clout. This thesis suggests that perhaps Canada’s inflated sense of self, which has persisted in the national conscience, can be attributed to the exaggerated importance the 1950s diplomats gave to themselves.
John L. Mackie και Alvin Plantinga: Το πρόβλημα του κακού και η υπεράσπιση από την ελεύθερη βούληση
Creators: name: Σιλβέστρος, Παύλος Αχιλλέα
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Θεός
Ελευθερία
Κακό
God
Freedom
Evil

description: Σκοπός αυτής της μελέτης είναι να ελεγχθεί η κρατούσα άποψη στη σύγχρονη φιλοσοφία της θρησκείας που θεωρεί την υπεράσπιση από την ελεύθερη βούληση του Alvin Plantinga επιτυχή και το λογικό πρόβλημα του κακού του John L. Mackie ξεπερασμένο. Συνεπώς, η παρούσα μελέτη εξετάζει όλα τα σχετικά έργα αυτών των δύο φιλοσόφων και επιλεκτικά την πλειονότητα των στενά σχετιζόμενων δευτερογενών πηγών, επιχειρώντας να δείξει ότι: (1) η υπεράσπιση από την ελεύθερη βούληση του Plantinga είναι ανεπιτυχής· (2) τα σημαντικότερα απολογητικά εγχειρήματα είναι ανεπαρκή αναφορικά με την ολότητα του ηθικού και φυσικού κακού· (3) ο πυρήνας της συλλογιστικής του Mackie δεν είναι παρωχημένος αλλά αξίζει να ληφθεί υπόψη για τη διατύπωση νέων και βελτιωμένων παραγωγικών επιχειρημάτων από το κακό· (4) το μονοθεϊστικό κοσμοείδωλο, εκτός ίσως από την οχύρωση πίσω από τον πολύ αμφιλεγόμενο σκεπτικιστικό θεϊσμό, δεν έχει καταφέρει να δώσει μια ηθικώς ικανοποιητική απάντηση στο πρόβλημα που εγείρει η παράλληλη ύπαρξη των ηθικών και φυσικών κακών. Ως αποτέλεσμα της διεξοδικής έρευνας, το κύριο συμπέρασμα είναι ότι οι τέσσερις αυτοί στόχοι επιτεύχθηκαν και, πιθανόν, είναι καιρός η άνωθι κρατούσα φιλοσοφική άποψη να αναθεωρηθεί, τουλάχιστον όσον αφορά την αξιολόγηση του εγχειρήματος του Plantinga και τις προοπτικές του λογικού προβλήματος του κακού στον 21ο αιώνα.
description: The purpose of this study is to examine the dominant view in the contemporary analytic philosophy of religion that: Alvin Plantinga's Free Will Defense is successful and John L. Mackie’s Logical Problem of Evil is outdated. Therefore, this study explores all the relevant works of these philosophers and selectively the majority of closely related secondary sources, in an attempt to show that: (1) Plantinga’s Free Will Defense is unsuccessful, (2) the most prominent apologetic endeavors (theodicies or defenses) are inadequate to deal with the totality of moral and natural evil, (3) the core of Mackie’s reasoning is not obsolete, namely it is worth taking into consideration for the formulation of new and improved deductive arguments from evil (4) and the monotheistic worldview doesn't provide a morally sufficient answer to the problem of the parallel existence of moral and natural evils, except maybe the very questionable defense of Skeptical Theism. As a result of the in-depth examination, the main conclusion is that these four goals have been met and, possibly, it is about time the above dominant philosophical view to be revised, at least regarding the evaluation of Plantinga’s project and the prospects of the Logical Problem of Evil in the 21st century.
Accretion of tidally disrupted asteroids onto white dwarfs: direct accretion versus disk processing
Creators: name: Li, Daohai
name: Mustill, Alexander J.
name: Davies, Melvyn B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Atmospheric heavy elements have been observed in more than a quarter of white dwarfs (WDs) at different cooling ages, indicating ongoing accretion of asteroidal material, whilst only a few per cent of the WDs possess a dust disk, and all these WDs are accreting metals. Here, assuming that a rubble-pile asteroid is scattered inside a WD's Roche lobe by a planet, we study its tidal disruption and the long-term evolution of the resulting fragments. We find that after a few pericentric passages, the asteroid is shredded into its constituent particles, forming a flat, thin ring. On a timescale of Myr, tens of per cent of the particles are scattered onto the WD, and are therefore directly accreted without first passing through a circularised close-in disk. Fragment mutual collisions are most effective for coplanar fragments, and are thus only important in $10^3-10^4$ yr before the orbital coplanarity is broken by the planet. We show that for a rubble pile asteroid with a size frequency distribution of the component particles following that of the near earth objects, it has to be roughly at least 10 km in radius such that enough fragments are generated and $\ge10\%$ of its mass is lost to mutual collisions. At relative velocities of tens of km/s, such collisions grind down the tidal fragments into smaller and smaller dust grains. The WD radiation forces may shrink those grains' orbits, forming a dust disk. Tidal disruption of a monolithic asteroid creates large km-size fragments, and only parent bodies $\ge100$ km are able to generate enough fragments for mutual collisions to be significant. Hence, those large asteroids experience a disk phase before being accreted.
description: in press in MNRAS, simulation animation available at https://lidaohai.github.io/research/td
Σωφρόνιος Χρηστίδης μητροπολίτης Βερροίας και Ναούσης (1863-1869)
Creators: name: Παυλίδου, Παρασκευή Χρήστου
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Σωφρόνιος Χρηστίδης
Βέροια
Μητροπολίτης
Sofronios Christidis
Veria
Metropolitan

description: Ο μητροπολίτης Σωφρόνιος Χρηστίδης έζησε τον 19ο αιώνα υπηρέτησε τη μητρόπολη Βεροίας και Ναούσης (1863-1869) και ακολούθησε η ποιμαντορία του και σε άλλες μητροπόλεις (Ιωαννίνων 1869-1889 και 1902-1906 , Θεσσαλονίκης 1889-1893, Λέρου και Καλύμνου 1895-1897, Νικαίας 1897-1902), στις οποίες θα αφήσει σπουδαία κληρονομιά, όπως ακριβώς και στη μητρόπολη Βεροίας και Ναούσης και μία εξαιρετική πνευματική, διοικητική και εθνική υπηρεσία στην εκκλησία, αλλά και σε κάθε τόπο, τον οποίο υπηρέτησε με ζήλο, αφοσίωση και πατρική αγάπη. Η Βέροια και η Νάουσα, οφείλουν πολλά στην παρουσία και κυρίως τη δράση του μητροπολίτη , καθώς η ποιμαντορία του ήταν δημιουργική ως προς την ενίσχυση και την προστασία της ελληνικής εκπαίδευσης και τη θεμελίωση των μετέπειτα θετικών διοικητικών αλλαγών που γνώρισαν οι δύο κοινότητες, με την έντονη δράση των δημογερόντων, οι οποίοι βρίσκονταν μεν υπό τον έλεγχο του Σωφρονίου ωστόσο είχαν ελευθερία κινήσεων. Διετέλεσε μέλος της ιεράς συνόδου 1868 και 1869 περίοδο του βουλγαρικού ζητήματος και πρόεδρος της πατριαρχικής εκκλησιαστικής επιτροπής 1883-1885
description: Ο μητροπολίτης Σωφρόνιος Χρηστίδης έζησε τον 19ο αιώνα υπηρέτησε τη μητρόπολη Βεροίας και Ναούσης (1863-1869) και ακολούθησε η ποιμαντορία του και σε άλλες μητροπόλεις (Ιωαννίνων 1869-1889 και 1902-1906 , Θεσσαλονίκης 1889-1893, Λέρου και Καλύμνου 1895-1897, Νικαίας 1897-1902), στις οποίες θα αφήσει σπουδαία κληρονομιά, όπως ακριβώς και στη μητρόπολη Βεροίας και Ναούσης και μία εξαιρετική πνευματική, διοικητική και εθνική υπηρεσία στην εκκλησία, αλλά και σε κάθε τόπο, τον οποίο υπηρέτησε με ζήλο, αφοσίωση και πατρική αγάπη. Η Βέροια και η Νάουσα, οφείλουν πολλά στην παρουσία και κυρίως τη δράση του μητροπολίτη , καθώς η ποιμαντορία του ήταν δημιουργική ως προς την ενίσχυση και την προστασία της ελληνικής εκπαίδευσης και τη θεμελίωση των μετέπειτα θετικών διοικητικών αλλαγών που γνώρισαν οι δύο κοινότητες, με την έντονη δράση των δημογερόντων, οι οποίοι βρίσκονταν μεν υπό τον έλεγχο του Σωφρονίου ωστόσο είχαν ελευθερία κινήσεων. Διετέλεσε μέλος της ιεράς συνόδου 1868 και 1869 περίοδο του βουλγαρικού ζητήματος και πρόεδρος της πατριαρχικής εκκλησιαστικής επιτροπής 1883-1885
A Neutron Multiplicity Meter for Deep Underground Muon-Induced High Energy Neutron Measurements
Creators: name: Hennings-Yeomans, R.
name: Akerib, D. S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We present the design of an instrument capable of measuring the high energy ($>$60 MeV) muon-induced neutron flux deep underground. The instrument is based on applying the Gd-loaded liquid-scintillator technique to measure the rate of high-energy neutrons underground based on the neutron multiplicity induced in a Pb target. We present design studies based on Monte Carlo simulations that show that an apparatus consisting of a Pb target of 200 cm by 200 cm area by 60 cm thickness covered by a 60 cm thick Gd-loaded liquid scintillator (0.5% Gd content) detector could measure, at a depth of 2000 meters of water equivalent, a rate of $70\pm8$ (stat) events/year. Based on these studies, we also discuss the benefits of using a neutron multiplicity meter as a component of active shielding in such experiments.
description: 22 pages including 10 figures; corrected typos, extended references and improved description; revised version accepted for publication in NIM
Understanding and Managing Procrastination among Thai College Students
Creators: name: Leelie  Ratsameemonthon
Publisher: name: มหาวิทยาลัยหาดใหญ่
Year: 2558
Subjects: Active procrastination , passive procrastination , academic achievement

description: 1, 13, วารสารหาดใหญ่วิชาการ
ขอบฟ้าขลิบทอง: กวีนิพนธ์แห่งความรู้สึก นึก คิด
Creators: name: อภินันท์  สิริรัตนจิตต์
Publisher: name: มหาวิทยาลัยหาดใหญ่
Year: 2558

description: 1, 13, วารสารหาดใหญ่วิชาการ
Verteilte Systemarchitektur für mobile Roboter
Creators: name: Jahn, Uwe
Publisher: name: Universität Bielefeld
Year: 2021
Subjects: subject: 620

description: Bei mobilen Robotern gibt es zahlreiche Ansätze für Systemarchitekturen, sowohl als monolithisches, als auch als verteiltes System innerhalb eines Roboters. Ziel der vorliegenden Dissertation ist die Entwicklung einer allgemeingültigen Systemarchitektur für einen typischen mobilen Roboter. Zur Definition eines typischen mobilen Roboters wird eine Taxonomie aus Klassen, Anwendungsgebieten, Fähigkeiten und technischen Realisierungen von mobilen Robotern aufgrund einer umfangreichen Literaturrecherche erarbeitet.

 Die Systemarchitektur wird in Form eines konzeptionellen Modells beschrieben. Als grundlegende Struktur wird ein verteiltes System aus der Drei-Schichten Architektur des OCM verwendet. Die drei hierarchisch getrennten Schichten bestehen aus einer Controller-Ebene, mindestens einem reflektorischen Operator und einem kognitiven Operator. Die Controller sind direkt mit den Sensoren und Aktuatoren des Roboters verbunden, weshalb die Einhaltung von harter Echtzeit erforderlich ist. Der kognitive Operator hingegen wird zur Optimierung des Systems verwendet und muss nicht echtzeitfähig realisiert werden, sodass das konzeptionelle Modell die Ausführung des kognitiven Operators in der Cloud vorsieht. Neben der Struktur werden im konzeptionellen Modell Schnittstellen und Funktionen wie z. B. Watchdogs zur Erhöhung der Sicherheit (Safety) erläutert. Außerdem werden mit dem Motion, Health und Perception Controller typische Systemkomponenten für mobile Roboter definiert.

 Das konzeptionelle Modell wird zudem experimentell umgesetzt. Hierzu wird die Entwicklung des mobilen Roboters DAEbot gezeigt. Der Prototyp setzt die OCM-basierte Systemarchitektur als verteiltes System aus diversen SBCs um. Durch die Nutzung von vergleichsweise energieeffizienten SBCs in Kombination mit dem cloudbasierten kognitiven Operator, ist der DAEbot energieeffizient und kann trotzdem auf ausreichend Rechenkapazität zurückgreifen. Die Umsetzung enthält u. a. die Entwicklung einer Toolbox zur modellbasierten Entwicklung, die Erweiterung des CAN-Busses und die Einbindung der Cloud. Mittels eines im Rahmen dieser Arbeit entwickelten Analyse-Tools namens pulseAT wird die Systemauslastung aller Rechner des verteilten Systems überwacht, an zentraler Stelle gesammelt und analysiert. Hierbei wird u. a. die Antwortzeit der einzelnen Rechner, sowie die Einhaltung der Echtzeit überprüft. Dies erhöht die Zuverlässigkeit des mobilen Roboters.

 Die Evaluation des konzeptionellen Modells und die experimentelle Realisierung in Form des DAEbots zeigen, dass sowohl die Realisierung eines verteilten Systems, als auch die OCM Struktur und die Einbindung der Cloud für mobile Roboter sinnvoll sind. Zudem ist ein experimentelles Framework für verteilte Robotiksysteme für zukünftige Projekte entstanden.
ความสวยงามวางนัยทั่วไป: ผลคูณของจำนวนที่มีเลขโดดทุกหลักเป็นเลข 1 กับจำนวนที่มีเลขโดดทุกหลักเป็นเลข 1 ยกเว้นหลักแรกและหลักสุดท้ายเป็นจำนวนหลักของเลข 1 ในจำนวนแรก
Creators: name: พีระพงษ์  เครื่องสนุก
name: เพชรัตน์  เอี่ยมสอาด
name: อัยเรศ  เอี่ยมพันธ์
Publisher: name: มหาวิทยาลัยหาดใหญ่
Year: 2558
Subjects: จำนวนเศษเหลือ , ผลคูณ , จำนวนที่มีเลขโดดทุกหลักเป็นเลข 1

description: 1, 13, วารสารหาดใหญ่วิชาการ
title: Developing a resilient power management portal for an enterprise infrastructure
Creators: name: Horwich, A
Publisher: name: Science and Technology Facilities Council
Year: 2010

description: The Scientific Computing Technology (SCT) group within the Science and Technology Facilities Council's (STFC) e-Science centre is responsible for managing large scale cluster computing services for the UK's e-Infrastructure as well as STFC's core Facilities. Such an infrastructure needs managing, and SCT has invested a great deal of time and effort in finding suitable products to streamline the System Administration duties where possible, and develop in-house tools when solutions either do not exist or do not justify the cost. Alongside requirements to provide power management functionality to an OS commissioning service, SCT also saw the need to extend functionality to cover all power outlets available in the SCT Infrastructure so a consistent view could be maintained. To meet this challenge, a new service was developed which manages Power Distribution Units (PDU), Intelligent Platform Management Interfaces (IPMI), and VMware Virtual Machines. With this service, authenticated System Administrators can perform fine grained power control of servers and Virtual Machines with information collected from both Oracle and MySQL databases. It employs a database caching technique and runs in a fault tolerant environment to provide a resilient service in the event of building power failure; a scenario where the service is deemed most needed. It gives a consistent view of an enterprise infrastructure, with fine grained control for power management. For the first time, SCT can perform fully automated Operating System deployment on virtually any host in its infrastructure.