cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Microlensing Sensitivity to Earth-mass Planets in the Habitable Zone
Creators: name: Park, Byeong-Gon
name: Jeon, Young-Beom
name: Lee, Chung-Uk
name: Han, Cheongho
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Microlensing is one of the most powerful methods that can detect extrasolar planets and a future space-based survey with a high monitoring frequency is proposed to detect a large sample of Earth-mass planets. In this paper, we examine the sensitivity of the future microlensing survey to Earth-mass planets located in the habitable zone. For this, we estimate the fraction of Earth-mass planets that will be located in the habitable zone of their parent stars by carrying out detailed simulation of microlensing events based on standard models of the physical and dynamic distributions and the mass function of Galactic matter. From this investigation, we find that among the total detectable Earth-mass planets from the survey, those located in the habitable zone would comprise less than 1% even under a less-conservative definition of the habitable zone. We find the main reason for the low sensitivity is that the projected star-planet separation at which the microlensing planet detection efficiency becomes maximum (lensing zone) is in most cases substantially larger than the median value of the habitable zone. We find that the ratio of the median radius of the habitable zone to the mean radius of the lensing zone is roughly expressed as $d_{\rm HZ}/r_{\rm E}\sim 0.2(m/0.5 M_\odot)^{1/2}$.
description: ApJ, submitted
On the implementation of construction functions for non-free concrete data types
Creators: name: Blanqui, Frédéric
name: Hardin, Thérèse
name: Weis, Pierre
Publisher: name: arXiv
Year: 2007
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: Many algorithms use concrete data types with some additional invariants. The set of values satisfying the invariants is often a set of representatives for the equivalence classes of some equational theory. For instance, a sorted list is a particular representative wrt commutativity. Theories like associativity, neutral element, idempotence, etc. are also very common. Now, when one wants to combine various invariants, it may be difficult to find the suitable representatives and to efficiently implement the invariants. The preservation of invariants throughout the whole program is even more difficult and error prone. Classically, the programmer solves this problem using a combination of two techniques: the definition of appropriate construction functions for the representatives and the consistent usage of these functions ensured via compiler verifications. The common way of ensuring consistency is to use an abstract data type for the representatives; unfortunately, pattern matching on representatives is lost. A more appealing alternative is to define a concrete data type with private constructors so that both compiler verification and pattern matching on representatives are granted. In this paper, we detail the notion of private data type and study the existence of construction functions. We also describe a prototype, called Moca, that addresses the entire problem of...
Study of the magnetic octupole moment of $^{173}$Yb using collinear laser spectroscopy
Creators: name: de Groote, R. P.
name: Kujanpää, S.
name: Koszorús, Á.
name: Li, J. G.
name: Moore, I. D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The hyperfine constants of the $^3$P$^{\circ}_2$ state in neutral Yb have been measured using three different dipole transitions. This state was recently shown to have a comparatively large hyperfine magnetic octupole splitting, and thus a puzzlingly large magnetic octupole moment. The measurement is performed using collinear laser spectroscopy on a fast atomic beam, which provides a straightforward route to probing long-lived metastable atomic states with high resolution. From the combined analysis of all three lines we find no significant evidence for a non-zero octupole moment in $^{173}$Yb.
Οι κοινωνικές αναπαραστάσεις των εκπαιδευτικών για τα παιδιά Ρομά: η διάσταση της σχολικής τους φοίτησης
Creators: name: Χρήστου, Μαρία Νικολάου
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: Κοινωνικές αναπαραστάσεις εκπαιδευτικών
Παιδιά Ρομά
Σχολική αποτυχία
Teacher's social representations
Roma children
School failure
Teachers

description: Σκοπός της διπλωματικής εργασίας ήταν να εξεταστεί κατά πόσο οι κοινωνικές αναπαραστάσεις των εκπαιδευτικών επηρεάζουν τη σχολική φοίτηση των παιδιών Ρομά και αν με τις απόψεις τους γίνονται και οι ίδιοι οι εκπαιδευτικοί αιτία της σχολικής τους αποτυχίας. Εξετάσαμε τις κοινωνικές αναπαραστάσεις των εκπαιδευτικών πρωτοβάθμιας και δευτεροβάθμιας εκπαίδευσης για την ταυτότητα των παιδιών Ρομά, για τη συμπεριφορά τους στο σχολείο και τις σχέσεις τους με τα υπόλοιπα παιδιά. Ακόμη, μελετήσαμε το αν οι εκπαιδευτικοί εφαρμόζουν διαφορετικές πρακτικές για τα παιδιά Ρομά, καθώς και τις κοινωνικές τους αναπαραστάσεις για τη στάση των γονέων των παιδιών αυτών για το σχολείο, αλλά και για τη στάση των γονέων των υπόλοιπων παιδιών για τα παιδιά Ρομά.
description: The aim of this thesis was to examine whether the social representations of teachers affect the education of Roma children and if teachers become themselves a cause of their school failure. We examined the social representations of teachers of primary and secondary education for the identity of Roma children, their behavior at school and their relationships with other children. Furthermore, we studied whether teachers have different practices for Roma children, as well as their social representations about the attitude of these children’s parents about the school, but also the attitude of the parents of the other children for Roma children.
description: Συνεργαζόμενα Τμήματα Πανεπιστήμιο Λε Μαν (Maine France, Γαλλία)
An Experimental Investigation of the Scaling of Columnar Joints
Creators: name: Goehring, Lucas
name: Lin, Zhenquan
name: Morris, Stephen W.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: Columnar jointing is a fracture pattern common in igneous rocks in which cracks self-organize into a roughly hexagonal arrangement, leaving behind an ordered colonnade. We report observations of columnar jointing in a laboratory analog system, desiccated corn starch slurries. Using measurements of moisture density, evaporation rates, and fracture advance rates as evidence, we suggest an advective-diffusive system is responsible for the rough scaling behavior of columnar joints. This theory explains the order of magnitude difference in scales between jointing in lavas and in starches. We investigated the scaling of average columnar cross-sectional areas due to the evaporation rate, the analog of the cooling rate of igneous columnar joints. We measured column areas in experiments where the evaporation rate depended on lamp height and time, in experiments where the evaporation rate was fixed using feedback methods, and in experiments where gelatin was added to vary the rheology of the starch. Our results suggest that the column area at a particular depth is related to both the current conditions, and hysteretically to the geometry of the pattern at previous depths. We argue that there exists a range of stable column scales allowed for any particular evaporation rate.
description: 12 pages, 11 figures, for supporting online movies, go to http://www.physics.utoronto.ca/nonlinear/movies/starch_movies.html
Σχολιασμένη Διερμηνεία
Creators: name: Παραλίκας, Ηλίας Σωτηρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: Διερμηνεία Συνεδρίων
Πρακτική άσκηση
Αξιολόγηση
Conference Interpreting
Apprenticeship workshop
Evaluation

description: Στόχος της παρούσας εργασίας ήταν να αποτελέσει έναν συγκεντρωτικό φάκελο σχολιασμένων πράξεων διερμηνείας. Ο γράφων της εργασίας κλήθηκε να κάνει μια ανασκόπηση της πρακτικής του άσκησης, που πραγματοποιήθηκε στα πλαίσια του τελευταίου σκέλους του Μεταπτυχιακού Προγράμματος Διερμηνείας Συνεδρίων του Αριστοτελείου Πανεπιστημίου Θεσσαλονίκης. Περιγράφει τις σημαντικότερες παραμέτρους των συνεδρίων, στα οποία συμμετείχε παρέχοντας υπηρεσίες διερμηνείας, παραθέτοντας παράλληλα προσωπικά σχόλια καθώς και την κριτική αξιολόγηση των διοργανωτών και των επιβλεπόντων καθηγητών. Στον επίλογο γίνεται μια προσπάθεια εξαγωγής συμπερασμάτων για τις ενδεχόμενες δυσκολίες που μπορούν να προκύψουν κατά τη διερμηνεία συνεδρίων και για τον τρόπο αντιμετώπισης τους. Επίσης επιχειρείται και μια ανάλυση του βαθμού της συμβολής του Προγράμματος Σπουδών στην προετοιμασία και στην επιτυχή έκβαση της διερμηνείας σε πραγματικά συνέδρια και σε πραγματικές συνθήκες γενικότερα.
description: The aim of the present thesis was to constitute a comprehensive dossier of evaluated interpreting experiences. The writer of the thesis was asked to review his supervised practice, held in the context of the Master’s Program in Conference Interpreting of the Aristotle University of Thessaloniki. He describes the most significant features of the conferences, in which he participated providing interpreting services and at the same time he quotes his personal comments and the evaluations of the conferences’ organizers and the supervising trainers. The writer also tries to draw conclusions for the potential difficulties, which might arise during the conference interpreting and for ways of dealing with these difficulties. Furthermore an attempt is being made to analyze the extent of the contribution of the Master’s Program to the general preparation and the successful outcome of the interpretation in professional conditions.
Welsh Wreck Web Research Project (North Cardigan Bay). On-line research into the wreck of the: Transit
Creators: name: Perks, Graeme
Publisher: name: Archaeology Data Service
Year: 2024

description: Welsh Wreck Web Research Project unpublished report series, 1
description: The Transit was an American fully rigged ship registered in Boston, but the builders and owners are unknown. Transit is recorded in 1837 travelling between Europe and Boston, in 1838 between Boston, the Southern ports of the USA and Liverpool. In 1838 Transit sailed from Savannah in January for Liverpool with a cargo of cotton and was wrecked in February in Devils Mouth, Carmarthenshire, North Wales during fog. The crew were saved and part of the cargo. Transit was broken up by the action of the sea.
HI imaging of Galaxy Clusters at z=0.2; a Pilot Survey of Abell 963 and Abell 2192
Creators: name: Verheijen, Marc
name: van Gorkom, Jacqueline
name: Szomoru, Arpad
name: Dwarakanath, K. S.
name: Poggianti, Bianca
name: Schiminovich, David
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A pilot study with the powerful new backend of the Westerbork Synthesis Radio Telescope (WSRT) of two galaxy clusters at z=0.2 has revealed neutral hydrogen emission from 39 galaxies. The volume probed for each cluster is 1.7x10^4 Mpc^3, with spatial and velocity resolutions of 54x86 kpc^2 and 19.7 km/s, covering both clusters and the large scale structure in which they are embedded. The spatial distribution of the HI detected galaxies is very different for the two clusters. In Abell 963, most of the gas-rich galaxies are located to the northeast, at 1-3 Mpc from the cluster center in projection. Their velocities are slightly redshifted with respect to the cluster mean. This could be a gas-rich group falling in from the front. Abell 2192 is less massive and more diffuse, with the gas rich galaxies more uniformly spread over a large region around the cluster. The HI masses of the detected galaxies range from 5x10^9 to 4x10^10 Msun. Some HI-rich galaxies are spatially resolved and rudimentary rotation curves are derived, showing the prospect for Tully-Fisher studies of different galaxy populations in these environments. Only one galaxy is detected within a 1 Mpc radius from the center of the Butcher-Oemler cluster Abell 963, and none of the blue B-O galaxies which are all located within the central Mpc. The HI detected galaxies outside the central Mpc are of similar colour and magnitude as the non-detected B-O galaxies, indicating that the blue B-O galaxies are gas-poor compared to their counterparts in the field.
description: 7 pages, 4 figures. to appear in the New Astronomy Review proceedings of "The Fate of Gas in Galaxies", held in Dwingeloo, July 2006
Huge quadratic magneto-optical Kerr effect and magnetization reversal in the Co$_2$FeSi Heusler compound
Creators: name: Hamrle, J.
name: Blomeier, S.
name: Gaier, O.
name: Hillebrands, B.
name: Schneider, H.
name: Jakob, G.
name: Postava, K.
name: Felser, C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Co$_2$FeSi(100) films with L2$_1$ structure deposited onto MgO(100) were studied exploiting both longitudinal (LMOKE) and quadratic (QMOKE) magneto-optical Kerr effect. The films exhibit a huge QMOKE signal with a maximum contribution of up to 30 mdeg, which is the largest QMOKE signal in reflection that has been measured thus far. This large value is a fingerprint of an exceptionally large spin-orbit coupling of second or higher order. The Co$_2$FeSi(100) films exhibit a rather large coercivity of 350 and 70 Oe for film thicknesses of 22 and 98 nm, respectively. Despite the fact that the films are epitaxial, they do not provide an angular dependence of the anisotropy and the remanence in excess of 1% and 2%, respectively.
A Photogrammetry-based Framework to Facilitate Image-based Modeling and Automatic Camera Tracking
Creators: name: Bullinger, Sebastian
name: Bodensteiner, Christoph
name: Arens, Michael
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Graphics (cs.GR)
subject: FOS: Computer and information sciences

description: We propose a framework that extends Blender to exploit Structure from Motion (SfM) and Multi-View Stereo (MVS) techniques for image-based modeling tasks such as sculpting or camera and motion tracking. Applying SfM allows us to determine camera motions without manually defining feature tracks or calibrating the cameras used to capture the image data. With MVS we are able to automatically compute dense scene models, which is not feasible with the built-in tools of Blender. Currently, our framework supports several state-of-the-art SfM and MVS pipelines. The modular system design enables us to integrate further approaches without additional effort. The framework is publicly available as an open source software package.
A study on the radiative dileptonic decays $B^0(B_s)\toγ\ell^+\ell^-$
Creators: name: Chen, Jun-Xiao
name: Hou, Zhao-Yu
name: Lu, Cai-Dian
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the rare radiative dileptonic decays $B^0(B_s)\to γ\ell^+\ell^-$ ($\ell=e,μ$) in the standard model. By using the $B$ meson wave function constrained by non-leptonic decays, the branching ratios turn out to be of the order of $10^{-9}$ for $B_s\toγμ^+μ^-$, $γe^+ e^-$ and $10^{-10}$ for $B^0\toγμ^+μ^-$, $γe^+ e^-$. Based on the study, these decays are accessible at the near future LHC-b experiment, which are useful to determine the $B(B_s)$ wave function.
description: 9 pages, including 3 figures, to apper in Comm. of Theor. Phys
Μελέτη της Συμπεριφοράς ενός νευρώνα με το μοντέλο Hindmarsh-Rose
Creators: name: Προύσαλης, Δημήτριος-Λαυρέντιος Α.
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: Συμπεριφορά Νευρώνα
Μοντέλο Hindmarsh-Rose
Δυναμική του μοντέλου Hindmarsh-Rose
Behavior of a neuron
Hindmarsh-Rose neuron model
Dynamics of the model Hindmarsh-Rose

description: Στην παρούσα εργασία μελετήθηκε η συμπεριφορά του τρισδιάστατου μοντέλου νευρώνων Hindmarsh-Rose. Στην εισαγωγή παρουσιαζονται κάποια γενικά θεωρήματα, ορισμοί και εργαλεία σχετικά με τα δυναμικά συστήματα (Σημεία Ισορροπίας- Περιοδικές Τροχιές, Διακλαδώσεις, Απεικονίσεις Poincaré, εκθέτες Lyapunov κλπ) καθώς και μερικές πληροφορίες πάνω στους νευρώνες και στα μοντέλα νευρώνων. Στη συνέχεια μελετήθηκαν τα σημεία ισορροίας, έχοντας το ρεύμα Ι ως μεταβλητή. Επίσης, μελετήθηκαν οι διακλαδώσεις , οι απεικονίσεις Poincaré, οι εκθέτες Lyapunov για διάφορες τιμές του Ι καθώς και για ποιες τιμές εμφανίζεται χάος. Σε επόμενο κεφάλαιο έγινε μια μελέτη της συμπεριφοράς του μοντέλου όταν αντί σταθερής έντασης Ι δωθεί ένας παλμός (Αρνητικός, Τετραγωνικός και τυχαίος). Επιπλέον στην συγκεκριμένη εργασία ασχοληθήκαμε με τα φαινομενα συγχρονισμού σε συζευμένα μοντέλα Hindmarsh-Rose. Τέλος έγινε μια προσπάθεια να εξομοιωθεί το μοντέλο σε ηλεκτρονικό κύκλωμα.
description: In the present work we study the behavior of the three dimensional neuron model of Hindmarsh-Rose. In the introduction we analyse several aspects of the theory of dynamical systems e.g. the types of equilibrium points in $\Re^3$ , bifurcation theory, Lyapunov exponents etc. Theory of Neuron models is also treated. In the main part of the work we find the equilibrium points. Then we consider that the incoming current (DC) is the parameter we change, and we find the bifurcations and using the Poincaré maps and Lyapunov exponents we detect the regions of periodic behavior and the regions of showing chaos. Consequently we consider that instead of direct current the incoming current is a pulse. We study three cases of the incoming pulse the Square wave, Negative Square wave and pulse with random frequency. In the first case we confirm the behavior of the neuron model when the incoming current was direct. In the second case we confirm some neurocomputantional properties of the neurons. In the third case we stydy the model from statistical point of view. Next we work on Synchronization Phenomena in Coupled Hindmarsh – Rose Neuron Models with a recently new proposed method by using Nonlinear Open Loop Controllers (NOLCs). Finally, a circuital implementation of the Hindmarsh-Rose model has been introduced to show its feasibility
Eigenvalue distributions for some correlated complex sample covariance matrices
Creators: name: Forrester, P. J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The distributions of the smallest and largest eigenvalues for the matrix product $Z^\dagger Z$, where $Z$ is an $n \times m$ complex Gaussian matrix with correlations both along rows and down columns, are expressed as $m \times m$ determinants. In the case of correlation along rows, these expressions are computationally more efficient than those involving sums over partitions and Schur polynomials reported recently for the same distributions.
description: 11 pages
OLIY TA'LIM MUASSASALARI TALABALARIGA ISPAN TILI IJTIMOIY-MADANIY KOMPETENTLIGINI MOBIL ILOVALAR ORQALI O'QITISH
Creators: name: Tkacheva Anastasiya Aleksandrovna, Samarqand davlat chet tillar instituti dotsenti, f.f.n.
Publisher: name: Zenodo
Year: 2024

description: Ushbu ilmiy maqolada O‘zbekiston oliy o‘quv yurtlari talabalariga ispan tili bo‘yicha ijtimoiy-madaniy kompetentsiyalarni mobil ilovalar yordamida o‘qitish istiqbollari o‘rganiladi. Maqola zamonaviy ta’lim amaliyotida mobil ilovalardan foydalanishning dolzarbligini ko‘rib chiqadi va ularning tillarni o‘rganish va ijtimoiy-madaniy tushunishni yaxshilash imkoniyatlarini tahlil qiladi.

Kalit so‘zlar: Ijtimoiy-madaniy kompetentsiya, ispan tili, mobil ilovalar, O‘zbekiston tajribasi, o‘rganishda moslashuvchanlik, interfaol ta’lim, materiallarning xilma-xilligi.
Conley: Computing connection matrices in Maple
Creators: name: Barakat, Mohamed
name: Robertz, Daniel
Publisher: name: arXiv
Year: 2007
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37B30 (Primary), 18E30 (Secondary)

description: In this work we announce the Maple package conley to compute connection and C-connection matrices. conley is based on our abstract homological algebra package homalg. We emphasize that the notion of braids is irrelevant for the definition and for the computation of such matrices. We introduce the notion of triangles that suffices to state the definition of (C)-connection matrices. The notion of octahedra, which is equivalent to that of braids is also introduced.
description: conley is based on the package homalg: math.AC/0701146, corrected the false "counter example"
The Persistence of False Memory: Brain in a Vat Despite Perfect Clocks
Creators: name: Schlögl, Thomas
name: Schmid, Ulrich
name: Kuznets, Roman
Publisher: name: arXiv
Year: 2020
Subjects: subject: Multiagent Systems (cs.MA)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences
subject: I.2.11

description: Recently, a detailed epistemic reasoning framework for multi-agent systems with byzantine faulty asynchronous agents and possibly unreliable communication was introduced. We have developed a modular extension framework implemented on top of it, which allows to encode and safely combine additional system assumptions commonly used in the modeling and analysis of fault-tolerant distributed systems, like reliable communication, time-bounded communication, multicasting, synchronous and lock-step synchronous agents and even agents with coordinated actions. We use this extension framework for analyzing basic properties of synchronous and lock-step synchronous agents, such as the agents' local and global fault detection abilities. Moreover, we show that even the perfectly synchronized clocks available in lock-step synchronous systems cannot be used to avoid "brain-in-a-vat" scenarios.
description: 34 pages, 2 figures
DAVE: Deriving Automatically Verilog from English
Creators: name: Pearce, Hammond
name: Tan, Benjamin
name: Karri, Ramesh
Publisher: name: arXiv
Year: 2020
Subjects: subject: Software Engineering (cs.SE)
subject: Computation and Language (cs.CL)
subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: While specifications for digital systems are provided in natural language, engineers undertake significant efforts to translate them into the programming languages understood by compilers for digital systems. Automating this process allows designers to work with the language in which they are most comfortable --the original natural language -- and focus instead on other downstream design challenges. We explore the use of state-of-the-art machine learning (ML) to automatically derive Verilog snippets from English via fine-tuning GPT-2, a natural language ML system. We describe our approach for producing a suitable dataset of novice-level digital design tasks and provide a detailed exploration of GPT-2, finding encouraging translation performance across our task sets (94.8% correct), with the ability to handle both simple and abstract design tasks.
description: 6 pages, 2 figures
Proper motion of gamma-rays from microhalo sources
Creators: name: Koushiappas, Savvas M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: I discuss the prospects of detecting the smallest dark matter bound structures present in the Milky Way by searching for the proper motion of $γ$-ray sources in the upcoming GLAST all sky map. I show that for dark matter particle candidates that couple to photons the detection of at least one $γ$-ray microhalo source with proper motion places a constraint on the couplings and mass of the dark matter particle. For SUSY dark matter, proper motion detection implies that the mass of the particle is less than 500 GeV and the kinetic decoupling temperature is in the range of [4-100] MeV.
description: Replaced with version accepted for publication in Phys. Rev. Lett
Bayesian inference of heterogeneous epidemic models: Application to COVID-19 spread accounting for long-term care facilities
Creators: name: Chen, Peng
name: Wu, Keyi
name: Ghattas, Omar
Publisher: name: arXiv
Year: 2020
Subjects: subject: Methodology (stat.ME)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We propose a high dimensional Bayesian inference framework for learning heterogeneous dynamics of a COVID-19 model, with a specific application to the dynamics and severity of COVID-19 inside and outside long-term care (LTC) facilities. We develop a heterogeneous compartmental model that accounts for the heterogeneity of the time-varying spread and severity of COVID-19 inside and outside LTC facilities, which is characterized by time-dependent stochastic processes and time-independent parameters in $\sim$1500 dimensions after discretization. To infer these parameters, we use reported data on the number of confirmed, hospitalized, and deceased cases with suitable post-processing in both a deterministic inversion approach with appropriate regularization as a first step, followed by Bayesian inversion with proper prior distributions. To address the curse of dimensionality and the ill-posedness of the high-dimensional inference problem, we propose use of a dimension-independent projected Stein variational gradient descent method, and demonstrate the intrinsic low-dimensionality of the inverse problem. We present inference results with quantified uncertainties for both New Jersey and Texas, which experienced different epidemic phases and patterns. Moreover, we also present forecasting and validation results based on the empirical posterior samples of our inference for the future trajectory of COVID-19.
Systematic Study of Acceleration Efficiency in Young Supernova Remnants with Nonthermal X-ray Observations
Creators: name: Tsuji, Naomi
name: Uchiyama, Yasunobu
name: Khangulyan, Dmitry
name: Aharonian, Felix
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Cutoff energy in a synchrotron radiation spectrum of a supernova remnant (SNR) contains a key parameter of ongoing particle acceleration. We systematically analyze 11 young SNRs, including all historical SNRs, to measure the cutoff energy, thus shedding light on the nature of particle acceleration at the early stage of SNR evolution. The nonthermal (synchrotron) dominated spectra in filament-like outer rims are selectively extracted and used for spectral fitting because our model assumes that accelerated electrons are concentrated in the vicinity of the shock front due to synchrotron cooling. The cutoff energy parameter ($\varepsilon_0$) and shock speed ($v_{\rm sh}$) are related as $ \varepsilon_0 \propto v_{\rm sh}^2 η^{-1}$ with a Bohm factor of $η$. Five SNRs provide us with spatially resolved $\varepsilon_0$-$v_{\rm sh}$ plots across the remnants, indicating a variety of particle acceleration. With all SNRs considered together, the systematic tendency of $η$ clarifies a correlation between $η$ and an age of $t$ (or an expansion parameter of $m$) as $η\propto t^{-0.4}$ ($η\propto m^{4}$). This might be interpreted as the magnetic field becomes more turbulent and self-generated, as particles are accelerated at a greater rate with time. The maximum energy achieved in SNRs can be higher if we consider the newly observed time dependence on $η$.
description: 26 pages, 7 figure, 6 tables; Accepted for publication in ApJ
This teaching land : Learning hermeneutically in the English 9 classroom
Creators: name: Wittman, Jacklyn Maureen
Publisher: name: University of British Columbia
Year: 2009

description: This thesis in the spirit of hermeneutic inquiry tell the story of a teacher facing challenges in her grade nine English classroom. It is an exposition of reflective narrative, poetry and hermeneutic writing for the purpose of deconstructing stale attitudes and searching under cliched stereotypes with regard to how early adolescents deal with the English curriculum, the pedagogy and the interactive dynamics in the classroom. The reflective narrative presents events, successes, failures and perplexities as they occurred throughout one year of teaching. The hermeneutic process reveals assumptions, traces background knowledge, questions power and gender and acknowledges the effects of mothering/teaching. It explores the value of writing inside and outside the classroom by both teachers and students as a trace of growth in learning. Most importantly, this thesis presents the intrigue of metaphor and poetry as a radical hermeneutic in the quest for understanding. The poetry reveals perceptions about the complexity of the multiple relationships that are formed in a classroom. Each poem testifies to the intensity of the lived experience and provides visionary opportunities for further understanding. The complete narrative takes place in a metaphorical geography where landforms are mixed: bog, rugged terrain, open plain and seashore. Each location is analogous to the state of the struggle toward understanding and learning. Students and teacher live and learn together in this figurative land. Sometimes they are foe, sometimes they are friend. The metaphors that bring understanding change as the writer's perceptions change. This work acclaims the value of the hermeneutic circle in its embrace of all individuals struggling and learning in language together. It is a celebration of hermeneutic inquiry and what it reveals about the mystery and power of language in writing.
The role of energy in ballistic agglomeration
Creators: name: Brilliantov, N. V.
name: Osinsky, A. I.
name: Krapivsky, P. L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We study a ballistic agglomeration process in the reaction-controlled limit. Cluster densities obey an infinite set of Smoluchowski rate equations, with rates dependent on the average particle energy. The latter is the same for all cluster species in the reaction-controlled limit and obeys an equation depending on densities. We express the average energy through the total cluster density that allows us to reduce the governing equations to the standard Smoluchowski equations. We derive basic asymptotic behaviors and verify them numerically. We also apply our formalism to the agglomeration of dark matter.
Βελτιστοποίηση νανο-τρανζίστορ πολλαπλής πύλης χωρίς ετεροεπαφές (Junctionless, FinFETs) και σύγκριση με συμβατικά FinFET με την βοήθεια προσομοιώσεων
Creators: name: Οπρογλίδης, Θεόδωρος Αθανασίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: τρανζίστορ χωρίς ετεροεπαφές
φαινόμενα μικρού καναλιού
μεταβλητότητες
Junctionless transistors
short channel effects
Silvaco

description: Σκοπός της συγκεκριμένης διπλωματικής εργασίας είναι η μελέτη των τρανζίστορ FinFET χωρίς επαφές (Junctionless FinFETs) καθώς και η σύγκρισή τους με συμβατικά FinFET τρανζίστορ. Αρχικά, εξετάσαμε το θεωρητικό υπόβαθρο της οικογένειας τρανζίστορ MOSFET και μελετήσαμε τα προβλήματα που εισάγουν τα φαινόμενα μικρού καναλιού (SCE) και οι μεταβλητότητες καθώς μειώνονται οι διαστάσεις των συσκευών. Ακόμα, προχωρήσαμε σε μια σύγκριση της επίδρασης των μεταβλητοτήτων στην λειτουργία των συμβατικών FinFETs και των Junctionless FinFETs. Έπειτα, παρουσιάζουμε μια βιβλιογραφική περιγραφή της πλατφόρμας Silvaco με λεπτομέρειες τόσο για το πως συγκροτούμε τον κώδικά μας όσο και για το περιβάλλον της πλατφόρμας που χρησιμοποιήθηκε στα πλαίσια αυτής της διπλωματικής εργασίας, ενώ στο τελευταίο κομμάτι παρουσιάζονται τα αποτελέσματα των προσομοιώσεων που εκτελέσαμε και που αφορούν την βελτιστοποίηση των JL – FinFETs.
description: The purpose of this thesis is the research of Junctionless FinFET transistors and their comparison with the conventional FinFETs as well. Firstly, we examined the theoretical background of the MOSFET transistor and we studied the problems introduced by short channel effects and variabilities as transistors keep on downsizing. Also, we compare the impact of variabilities in terms of operation for conventional FinFETs as well as Junctionless FinFETs. Furthermore, we present a detailed layout of the Silvaco platform not only in terms of coding but also the platform environment used for the present thesis. Another aim of this study was to optimize the Junctionless FinFETs via simulation using the Silvaco platform.
Central Charge Anomalies in 2D Sigma Models with Twisted Mass
Creators: name: Shifman, M.
name: Vainshtein, A.
name: Zwicky, R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss the central charge in supersymmetric ${\cal N}=2$ sigma models in two dimensions. The target space is a symmetric Kähler manifold, CP$(N-1)$ is an example. The U(1) isometries allow one to introduce twisted masses in the model. At the classical level the central charge contains Noether charges of the U(1) isometries and a topological charge which is an integral of a total derivative of the Killing potentials. At the quantum level the topological part of the central charge acquires anomalous terms. A bifermion term was found previously, using supersymmetry which relates it to the superconformal anomaly. We present a direct calculation of this term using a number of regularizations. We derive, for the first time, the bosonic part in the central charge anomaly. We construct the supermultiplet of all anomalies and present its superfield description. We also discuss a related issue of BPS solitons in the CP(1) model and present an explicit form for the curve of marginal stability.
description: 30 pages, 1 figure, references added
Welsh Wreck Web Research Project (North Cardigan Bay). On-line research into the wreck of the: Twin Sister
Creators: name: Perks, Graeme
Publisher: name: Archaeology Data Service
Year: 2024

description: Welsh Wreck Web Research Project unpublished report series, 1
description: The schooner Twin Sister was built by Robert Sparrow at Wexford in 1857. The owners of Twin Sister were Fisher and Co. of Barrow in Furness comprised of a consortium of 27 local people led by James Fisher of Barrow, shipping agent. The Twin Sister operated as a coaster along the west coast of Great Britain and Ireland. The Twin Sister foundered in the Royal Charter storm of 25th- 26th October 1859 with some wreckage being washed ashore near Aberystwyth. The Twin Sister, master William Porter, was on a voyage from Newport, Mon. to Liverpool with coal and all the crew perished.
Developing student awareness of knowledge structures : An exploratory teacher-action study
Creators: name: Grant, Lynn M.
Publisher: name: University of British Columbia
Year: 2009

description: This study examined Grade Six and Seven English as a Second Language (ESL) students' development and use of Knowledge Structures in the classroom. It was an exploratory, teacher- action research study which aimed at illumination, rather than causal analysis. The study was part of a larger initiative aimed at improving ESL learners' academic English language proficiency and content - area achievement, using the Knowledge Framework (Mohan, 1986). The Knowledge Framework is a systematic way of working with Knowledge Structures which underlie discourse, subject-area knowledge and Thinking Skills present throughout the curriculum, K-12. The objectives of this study were 1) to investigate if young ESL students can understand Knowledge Structures and use them in their class work, and 2) to identify if the Knowledge Framework can be made accessible to Grade Six and Seven ESL students, bearing in mind that the Knowledge Framework appears to provide a systematic way of working with Thinking Skills which are required across the curriculum, K-12. The results were positive, broadly speaking. However, for example, the students found it less difficult to recognize, understand, and apply the Thinking Skills of Knowledge Structures when they were accompanied by Key Visuals rather than text samples and the students found it less difficult to create Key Visuals for a text than to conversely, create text from Key Visuals. There were two broad implications from the study. 1) It appears that the development of student awareness and usage of Knowledge Structures can be a very worthwhile activity, which may provide benefits for both first and second language students at all grade levels. Teacher action research is an important way to investigate this and this study provides a stepping stone for further teacher action research in this area. 2) It appears that the Knowledge Framework model can be accessible to students and can provide a way to treat the development of discourse, Thinking Skills and graphic literacy in a systematic rather than fragmentary way. This points the way to further curriculum research, since it lends credibility to the Knowledge Framework as a model for curriculum integration and for ways in which teacher planning can be coordinated with learner reflection and learner development.
The Blue Pacific in Action:Solomon Islands' National Ocean Policy
Creators: name: Keen, Meg
name: Masu, Rosalie
Publisher: name: Canberra, ACT: Dept. of Pacific Affairs, Research School of Pacific and Asian Studies, The Australian National University
Year: 2019

description: Solomon Islands has embraced the regional Blue Pacific and Pacific Oceanscape concepts for sustainable oceans management and translated the core principles into national action. The Solomon Islands National Ocean Policy (SINOP; SIG 2018) was launched in November 2018 to safeguard its rich fishing grounds that provide food security, livelihoods and government revenue. It is a useful example of the political and multi-jurisdictional commitment required to apply regional ocean frameworks nationally. This In Brief draws on the insights of senior officials engaged in policy development to provide critical reflections on the challenges ahead for implementation.
Twisted SUSY Invariant Formulation of Chern-Simons Gauge Theory on a Lattice
Creators: name: Nagata, Kazuhiro
name: Wu, Yong-Shi
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We propose a twisted SUSY invariant formulation of Chern-Simons theory on a Euclidean three dimensional lattice. The SUSY algebra to be realized on the lattice is the N=4 D=3 twisted algebra that was recently proposed by D'Adda et al.. In order to keep the manifest anti-hermiticity of the action, we introduce oppositely oriented supercharges. Accordingly, the naive continuum limit of the action formally corresponds to the Landau gauge fixed version of Chern-Simons theory with complex gauge group which was originally proposed by Witten. We also show that the resulting action consists of parity even and odd parts with different coefficients.
description: 22 pages, 5 figures; v2,v3 added references, v4 added two paragraphs and one figure in the summary
Welsh Wreck Web Research Project (North Cardigan Bay). On-line research into the wreck of the: Two Brothers March 1907
Creators: name: Maloney, Annette
Publisher: name: Archaeology Data Service
Year: 2024

description: Welsh Wreck Web Research Project unpublished report series, 1
description: Research rerpot on the Two Brothers Schooner, MADU database number 365, wrecked on 16th March 1907.
Field sparsening for the construction of the correlation functions in lattice QCD
Creators: name: Li, Yuan
name: Xia, Shi-Cheng
name: Feng, Xu
name: Jin, Lu-Chang
name: Liu, Chuan
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Two field-sparsening methods, namely the sparse-grid method and the random field selection method, are used in this paper for the construction of the 2-point and 3-point correlation functions in lattice QCD. We argue that, due to the high correlation among the lattice correlators at different field points associated with source, current, and sink locations, one can save a lot of computational time by performing the summation over a subset of the lattice sites. Furthermore, with this strategy, one only needs to store a small fraction of the full quark propagators. It is found that the number of field points can be reduced by a factor of $\sim$100 for the point-source operator and a factor of $\sim$1000 for the Gaussian-smeared operator, while the uncertainties of the correlators only increase by $\sim$15\%. Therefore, with a modest cost of the computational resources, one can approach the precision of the all-to-all correlators using the field-sparsening methods.
description: 16 pages, 9 figures
SON SO'Z TURKUMI GAZETA MATNLARI O'ZIGA XOS USLUBIY JIHATINI KO'RSATUVCHI GRAMMATIK KATEGORIYA SIFATIDA
Creators: name: Ahmedova Dilfuza Rafukjanovna, Toshkent davlat sharqshunoslik universiteti dotsenti, DSc
Publisher: name: Zenodo
Year: 2024

description: Matnda raqamlar orqali ifodalangan sonlar hayotning barcha yangi sohalarini qamrab olib, ommaviy axborot vositalarida o‘z aksini topmoqda. Biz iqtisod, statistika, moliya siyosati va hatto sport xronologiyasi mavzulariga bag‘ishlangan nashrlarni sonlarsiz tasavvur eta olmaymiz. Maqolada gazeta matnlarida son soʻz turkumining oʻrni, uning uslubiy xususiyatlari yoritilgan.

Abstract: Numbers expressed in the text by numbers cover all new areas of life and are reflected in mass media. We cannot imagine the publications devoted to the topics of economics, statistics, financial policy and even sports chronology without numbers. The article describes the role of the word group in newspaper texts and its stylistic features.

Kalit so‘zlar: gazeta publitsistik uslubi, son so‘z turkumi, axborot aniqligi, infografika
The Effect of Randomness on the Mott State
Creators: name: Nattermann, Thomas
name: Petkovic, Aleksandra
name: Ristivojevic, Zoran
name: Schuetze, Friedmar
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We reinvestigate the competition between the Mott and the Anderson insulator state in a one-dimensional disordered fermionic system by a combination of instanton and renormalization group methods. Tracing back both the compressibility and the ac-conductivity to a vanishing kink energy of the electronic displacement field we do not find any indication for the existence of an intermediate (Mott glass) phase.
description: 4 pages
A machine-learning framework for peridynamic material models with physical constraints
Creators: name: Xu, Xiao
name: D'Elia, Marta
name: Foster, John T.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: Applied Physics (physics.app-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: As a nonlocal extension of continuum mechanics, peridynamics has been widely and effectively applied in different fields where discontinuities in the field variables arise from an initially continuous body. An important component of the constitutive model in peridynamics is the influence function which weights the contribution of all the interactions over a nonlocal region surrounding a point of interest. Recent work has shown that in solid mechanics the influence function has a strong relationship with the heterogeneity of a material's micro-structure. However, determining an accurate influence function analytically from a given micro-structure typically requires lengthy derivations and complex mathematical models. To avoid these complexities, the goal of this paper is to develop a data-driven regression algorithm to find the optimal bond-based peridynamic model to describe the macro-scale deformation of linear elastic medium with periodic heterogeneity. We generate macro-scale deformation training data by averaging over periodic micro-structure unit cells and add a physical energy constraint representing the homogenized elastic modulus of the micro-structure to the regression algorithm. We demonstrate this scheme for examples of one- and two-dimensional linear elastodynamics and show that the energy constraint improves the accuracy of the resulting peridynamic model.
description: 24 pages, 16 figures
Big Bang Nucleosynthesis with Bound States of Long-lived Charged Particles
Creators: name: Kaplinghat, Manoj
name: Rajaraman, Arvind
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Charged particles (X) decaying after primordial nucleosynthesis are constrained by the requirement that their decay products should not change the light element abundances drastically. If the decaying particle is negatively charged (X-) then it will bind to the nuclei. We consider the effects of the decay of X when bound to Helium-4 and show that this will modify the Lithium abundances.
description: 5 pages; v2: references added, figure caption corrected; v3: references added
Welsh Wreck Web Research Project (North Cardigan Bay). On-line research into the wreck of the Imperial German Navy Submarine SM U-87
Creators: name: Blondeau, Mark
Publisher: name: Archaeology Data Service
Year: 2024

description: Welsh Wreck Web Research Project unpublished report series, 1
description: This online research project is into the wreck of the World War I Imperial German Naval submarine SM U-87, sunk with all hands in action with the Royal Navy on Christmas Day, 1917.
Polygraphic programs and polynomial-time functions
Creators: name: Bonfante, Guillaume
name: Guiraud, Yves
Publisher: name: arXiv
Year: 2007
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Computational Complexity (cs.CC)
subject: Category Theory (math.CT)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: F.1.1; F.4

description: We study the computational model of polygraphs. For that, we consider polygraphic programs, a subclass of these objects, as a formal description of first-order functional programs. We explain their semantics and prove that they form a Turing-complete computational model. Their algebraic structure is used by analysis tools, called polygraphic interpretations, for complexity analysis. In particular, we delineate a subclass of polygraphic programs that compute exactly the functions that are Turing-computable in polynomial time.
description: Logical Methods in Computer Science (to appear), 37 pages, 1 colour picture, corrected typos