cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Distributed Methods with Compressed Communication for Solving Variational Inequalities, with Theoretical Guarantees
Creators: name: Beznosikov, Aleksandr
name: Richtárik, Peter
name: Diskin, Michael
name: Ryabinin, Max
name: Gasnikov, Alexander
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Variational inequalities in general and saddle point problems in particular are increasingly relevant in machine learning applications, including adversarial learning, GANs, transport and robust optimization. With increasing data and problem sizes necessary to train high performing models across various applications, we need to rely on parallel and distributed computing. However, in distributed training, communication among the compute nodes is a key bottleneck during training, and this problem is exacerbated for high dimensional and over-parameterized models. Due to these considerations, it is important to equip existing methods with strategies that would allow to reduce the volume of transmitted information during training while obtaining a model of comparable quality. In this paper, we present the first theoretically grounded distributed methods for solving variational inequalities and saddle point problems using compressed communication: MASHA1 and MASHA2. Our theory and methods allow for the use of both unbiased (such as Rand$k$; MASHA1) and contractive (such as Top$k$; MASHA2) compressors. New algorithms support bidirectional compressions, and also can be modified for stochastic setting with batches and for federated learning with partial participation of clients. We empirically validated our conclusions using two experimental setups: a standard bilinear min-max problem, and large-scale distributed adversarial training of transformers.
description: Appears in: Advances in Neural Information Processing Systems 35 (NeurIPS 2022). Minor modifications with respect to the NeurIPS version. 73 pages, 9 algorithms, 2 figures, 2 tables
Two weight inequality for vector-valued positive dyadic operators by parallel stopping cubes
Creators: name: Hänninen, Timo S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 42B20, 42B25, 46E40

description: We study the vector-valued positive dyadic operator \[T_λ(fσ):=\sum_{Q\in\mathcal{D}} λ_Q \int_Q f \mathrm{d}σ1_Q,\] where the coefficients $\{λ_Q:C\to D\}_{Q\in\mathcal{D}}$ are positive operators from a Banach lattice $C$ to a Banach lattice $D$. We assume that the Banach lattices $C$ and $D^*$ each have the Hardy--Littlewood property. An example of a Banach lattice with the Hardy--Littlewood property is a Lebesgue space. In the two-weight case, we prove that the $L^p_C(σ)\to L^q_D(ω)$ boundedness of the operator $T_λ( \cdot σ)$ is characterized by the direct and the dual $L^\infty$ testing conditions: \[ \lVert 1_Q T_λ(1_Q f σ)\rVert_{L^q_D(ω)}\lesssim \lVert f\rVert_{L^\infty_C(Q,σ)} σ(Q)^{1/p},\] \[ \lVert1_Q T^*_λ(1_Q g ω)\rVert_{L^{p'}_{C^*}(σ)}\lesssim \lVert g\rVert_{L^\infty_{D^*}(Q,ω)} ω(Q)^{1/q'}.\] Here $L^p_C(σ)$ and $L^q_D(ω)$ denote the Lebesgue--Bochner spaces associated with exponents $1
description: 32 pages. The main changes are: a) Banach lattice-valued functions are considered. It is assumed that the Banach lattices have the Hardy--Littlewood property. b) The unweighted norm inequality is characterized by an endpoint testing condition and some corollaries of this characterization are stated. c) Some questions about the borderline of the vector-valued testing conditions are posed
Wiener-Hopf operators in higher dimensions: the Widom conjecture for piece-wise smooth domains
Creators: name: Sobolev, A. V.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Spectral Theory (math.SP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: Primary 47G30, Secondary 45M05, 47B10, 47B35

description: We prove a two-term quasi-classical trace asymptotic formula for the functions of multi-dimensional Wiener-Hopf operators with discontinuous symbols. The discontinuities occur on the surfaces which are assumed to be piece-wise smooth. Such a two-term formula was conjectured by H. Widom in 1982, and proved by A. V Sobolev for smooth surfaces in 2009.
description: 15 pages
Evaluation of Post-stack Seismic Inversion Techniques for Detection of Sands in Gulf of Thailand
Creators: name: Wiphawan Purisa
Publisher: name: Department of Geology, Chulalongkorn University
Year: 2014
Subjects: Post-stack Seismic Inversion, Pattani Basin, Gulf of Thailand

description: Bulletin of Earth Sciences of Thailand (BEST), 7, 2-Jan, 186-192
An anthropomorphic multimodality (CT/MRI) phantom prototype for end-to-end tests in radiation therapy
Creators: name: Gallas, Raya R.
name: Hünemohr, Nora
name: Runz, Armin
name: Niebuhr, Nina I.
name: Jäkel, Oliver
name: Greilich, Steffen
Publisher: name: arXiv
Year: 2014
Subjects: subject: Medical Physics (physics.med-ph)
subject: FOS: Physical sciences

description: With the increasing complexity of external beam therapy, so-called "end-to-end" tests are intended to cover all steps from therapy planning to follow-up to fulfill the high demands on quality assurance. As magnetic resonance imaging (MRI) gains growing importance in the treatment process and established phantoms (such as the Alderson head) cannot be used for those tests, novel multimodality phantoms have to be developed. Here, we present a feasibility study for such a customizable multimodality head phantom. We used a set of patient CT images as the basis for the anthropomorphic head shape. The recipient - consisting of an epoxy resin - was produced using rapid prototyping (3D printing). The phantom recipient includes a nasal air cavity, two soft tissues volumes and cranial bone. Additionally a spherical tumor volume was positioned in the center. The volumes were filled with dipotassium phosphate-based cranial bone surrogate, agarose gel, and distilled water. The tumor volume was filled with normoxic dosimetric gel. The entire workflow of radiation therapy including a clinical proton irradiation could be successfully applied to the phantom. CT measurements revealed Hounsfield units agreeing with reference values for all surrogates. The MRI contrasts corresponded to the expectations on the phantom materials except for the bone surrogate providing an undesirably high signal intensity. The dose verification by T2-weighted read out of the polymerization gel dosimeter could successfully show a correct plan delivery in terms of particle range.
description: 18 pages, 6 figures
FACIES DISTRIBUTION AND DIAGENETIC EVOLUTION OF A CARBONATE RESERVOIR IN PHA NOK KHAO FORMATION, SINPHUHORM, THAILAND
Creators: name: Apsorn Panthong
Publisher: name: Department of Geology, Chulalongkorn University
Year: 2015
Subjects: Fluid evolution
Cutting
Uplift
Permian carbonate

description: Bulletin of Earth Sciences of Thailand (BEST), 7, 2-Jan, 204-214
Revisiting the Emission Line Source Detection Problem in Integral Field Spectroscopic Data
Creators: name: Herenz, Edmund Christian
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a 3-dimensional matched filtering approach for the blind search of faint emission-line sources in integral-field spectroscopic datasets. The filter is designed to account for the spectrally rapidly varying background noise due to the telluric air glow spectrum. A software implementation of this matched filtering search is implemented in an updated version of the Line Source Detection Cataloguing tool (LSDCat2.0). Using public data from the MUSE-Wide survey we show how the new filter design provides higher detection significances for faint emission line sources buried in between atmospheric [OH]-bands at $λ\gtrsim 7000$\,Å. We also show how, for a given source parameterisation, the selection function of the improved algorithm can be derived analytically from the variances of the data. We verify this analytic solution against source insertion and recovery experiments in the recently released dataset of the MUSE eXtreme Deep Field (MXDF). We then illustrate how the selection function has to be re-scaled for 3D emission line source profiles that are not fully congruent with the template. This procedure alleviates the construction of realistic selection functions by removing the need for computationally cumbersome source insertion and recovery experiments.
description: Article published in AN
A generalization of the problem of Mariusz Meszka
Creators: name: Pasotti, Anita
name: Pellegrini, Marco Antonio
Publisher: name: arXiv
Year: 2014
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C38

description: Mariusz Meszka has conjectured that given a prime p=2n+1 and a list L containing n positive integers not exceeding n there exists a near 1-factor in K_p whose list of edge-lengths is L. In this paper we propose a generalization of this problem to the case in which p is an odd integer not necessarily prime. In particular, we give a necessary condition for the existence of such a near 1-factor for any odd integer p. We show that this condition is also sufficient for any list L whose underlying set S has size 1, 2, or n. Then we prove that the conjecture is true if S={1,2,t} for any positive integer t not coprime with the order p of the complete graph. Also, we give partial results when t and p are coprime. Finally, we present a complete solution for t<12.
description: 15 pages
Cuspidal curves, minimal models and Zaidenberg's finiteness conjecture
Creators: name: Palka, Karol
Publisher: name: arXiv
Year: 2014
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14H50 (Primary), 14J17, 14R05 (Secondary)

description: Let $E\subseteq \mathbb{P}^2$ be a complex rational cuspidal curve and let $(X,D)\to (\mathbb{P}^2,E)$ be the minimal log resolution of singularities. We prove that $\bar E$ has at most six cusps and we establish an effective version of the Zaidenberg Finiteness Conjecture (1994) concerning Eisenbud-Neumann diagrams of $E$. This is done by analysing the Minimal Model Program run for the pair $(X,\frac{1}{2}D)$. Namely, we show that $\mathbb{P}^2\setminus E$ is $\mathbb{C}^{**}$-fibred or for the log resolution of the minimal model the Picard rank, the number of boundary components and their self-intersections are bounded.
description: 24 pages
title: Conference reflections : EUSARF 2012
Creators: name: Steckley, Laura
Publisher: name: Strathprints - University of Strathclyde
Year: 2013

description: The 12th European Scientific Association on Residential Foster Care for Children and Adolescents Conference (EUSARF) 2012 was held in Glasgow from 3-7th September. Delegates attended from 35 countries spanning five continents, making for a rich international mix. Shortly after, Iain Matheson, a management consultant, researcher, evaluator and educator in New Zealand, started a conversation on LinkedIn, asking for people's reflections on the conference. What follows is an edited version of this discussion, drawing from those participants who gave permission for their contributions to be reproduced here.
Integrated Information-induced quantum collapse
Creators: name: Kremnizer, Kobi
name: Ranchin, André
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: Information Theory (cs.IT)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We present a novel spontaneous collapse model where size is no longer the property of a physical system which determines its rate of collapse. Instead, we argue that the rate of spontaneous localization should depend on a system's quantum Integrated Information (QII), a novel physical property which describes a system's capacity to act like a quantum observer. We introduce quantum Integrated Information, present our QII collapse model and briefly explain how it may be experimentally tested against quantum theory.
description: 6 pages
Mapping of herpesvirus saimiri proteins on the viral genome: proteins dependent and not dependent on viral DNA synthesis
Creators: name: Hell, W.
name: Modrow, Susanne
name: Wolf, Hans J.
Publisher: name: Universität Regensburg
Year: 1985
Subjects: subject: 610 Medizin
subject: Chromosome Mapping
subject: DNA Replication/drug effects
subject: DNA, Viral/genetics
subject: Genes, Viral
subject: Herpesvirus 2, Saimiriine/genetics
subject: Nucleic Acid Hybridization
subject: Phosphonoacetic Acid/pharmacology
subject: Protein Biosynthesis
subject: RNA, Messenger/genetics
subject: RNA, Viral/genetics
subject: Viral Proteins/genetics
subject: Virus Replication/drug effects

description: Hybrid selected translation was used to map the genome of herpesvirus saimiri, a lymphotropic and oncogenic herpesvirus. RNA extracted from virus-infected cells was hybridized to cloned genomic fragments, and the hybrid selected mRNAs were translated in vitro in a rabbit reticulocyte lysate. Forty-five virus-induced polypeptides were identified and correlated to their coding regions on the herpesvirus saimiri genome. Inhibition of the replication of viral DNA with phosphonoacetic acid showed that 22 of these polypeptides belong to the early group of herpesvirus saimiri gene products.
Journée de réseautage en humanités numériques à l'UQAM 2023
Creators: name: Côté-Lapointe, Simon
name: Lapointe, Olivier
name: Bouchard, Dany
Publisher: name: Zenodo
Year: 2023
Subjects: humanités numériques
accès
infrastructure

description: Descriptions des thématiques pour Journée de réseautage en humanités numériques à l’UQAM du 3 mai 2023.
Numerical simulation of a solitonic gas in KdV and KdV-BBM equations
Creators: name: Dutykh, Denys
name: Pelinovsky, Efim
Publisher: name: arXiv
Year: 2013
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: The collective behaviour of soliton ensembles (i.e. the solitonic gas) is studied using the methods of the direct numerical simulation. Traditionally this problem was addressed in the context of integrable models such as the celebrated KdV equation. We extend this analysis to non-integrable KdV-BBM type models. Some high resolution numerical results are presented in both integrable and nonintegrable cases. Moreover, the free surface elevation probability distribution is shown to be quasi-stationary. Finally, we employ the asymptotic methods along with the Monte-Carlo simulations in order to study quantitatively the dependence of some important statistical characteristics (such as the kurtosis and skewness) on the Stokes-Ursell number (which measures the relative importance of nonlinear effects compared to the dispersion) and also on the magnitude of the BBM term.
description: 19 pages, 11 figures, 47 references. Other author's papers can be found at http://www.denys-dutykh.com/
IDENTIFICATION OF POTENTIAL SOURCE ROCKS USING SEISMIC ATTRIBUTES IN THE SYN-RIFT STRATIGRAPHIC SEQUENCE IN THE SOUTHERN PATTANI BASIN, GULF OF THAILAND
Creators: name: Chanmaly Chhun
Publisher: name: Department of Geology, Chulalongkorn University
Year: 2015
Subjects: Oligocene stratigraphy, organic-rich shale, high radiogenic shale, amplitude

description: Bulletin of Earth Sciences of Thailand (BEST), 7, 2-Jan, 230-239
Journée de réseautage en humanités numériques à l'UQAM
Creators: name: Côté-Lapointe, Simon
name: Lapointe, Olivier
name: Bouchard, Dany
Publisher: name: Zenodo
Year: 2023
Subjects: humanités numériques
accès
infrastructure

description: Descriptions des thématiques pour Journée de réseautage en humanités numériques à l’UQAM du 3 mai 2023.
Demonstration of pseudorabies virus DNA in the mouse inner ear by an in situ nucleic acid hybridization technique in plastic embedded bony material
Creators: name: Falser, N.
name: Bandtlow, I.
name: Hausmann, M.
name: Wolf, Hans J.
Publisher: name: Universität Regensburg
Year: 1986
Subjects: subject: 610 Medizin
subject: Animals
subject: Autoradiography
subject: Brain/pathology
subject: Cochlea/pathology
subject: DNA, Viral/analysis
subject: Ear, Inner/microbiology
subject: Herpesvirus 1, Suid/genetics
subject: Histological Techniques
subject: Labyrinthitis/pathology
subject: Methylmethacrylates
subject: Mice
subject: Mice, Inbred BALB C
subject: Neural Pathways/pathology
subject: Nucleic Acid Hybridization
subject: Pseudorabies/microbiology

description: This investigation is concerned with the possibility of identifying viral DNA using the in situ DNA hybridization method in methylmethacrylate-embedded material. As an experimental model we chose viral labyrinthitis produced by intranasal infection of the mouse with pseudorabies virus. Fixation and embedding methods specially adapted to this procedure and bony histology preparation technique (specimens by grinding or micromilling) made it possible to identify viral DNA directly morphologically and virologically in the inner ear. Quantitative microphotometric analyses of trans-sagittal sections of the entire skull after in situ DNA hybridization are presented and discussed here as an explicit method of investigating the path of distribution of viral DNA in the brain and the inner ear.
Dynamical quantum phase transitions in systems with broken-symmetry phases
Creators: name: Heyl, Markus
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this work it is shown that dynamical quantum phase transitions in Loschmidt echos control the nonequilibrium dynamics of the order parameter after particular quantum quenches in systems with broken-symmetry phases. A direct connection between Loschmidt echos and the order parameter dynamics is established which links nonequilibrium microscopic probabilities to the system's macroscopic dynamical properties. These concepts are illustrated numerically using exact diagonalization for quantum quenches in the XXZ chain with initial Néel states. An outlook is given how to explore these predictions experimentally with ultra-cold gases in optical lattices.
description: 4 pages, 3 figures, updated references
Supplementary Information from Predicting phenotype transition probabilities via conditional algorithmic probability approximations
Creators: name: Dingle, Kamaludin
name: Novev, Javor K.
name: Ahnert, Sebastian E.
name: Louis, Ard A.
Publisher: name: The Royal Society
Year: 2022
Subjects: subject: 60114 Systems Biology
subject: FOS: Biological sciences
subject: 60199 Biochemistry and Cell Biology not elsewhere classified
subject: 69999 Biological Sciences not elsewhere classified
subject: Computational Biology
subject: 10202 Biological Mathematics
subject: FOS: Mathematics

description: Unravelling the structure of genotype–phenotype (GP) maps is an important problem in biology. Recently, arguments inspired by algorithmic information theory (AIT) and Kolmogorov complexity have been invoked to uncover simplicity bias in GP maps, an exponentially decaying upper bound in phenotype probability with the increasing phenotype descriptional complexity. This means that phenotypes with many genotypes assigned via the GP map must be simple, while complex phenotypes must have few genotypes assigned. Here, we use similar arguments to bound the probability P(x → y)xy$P( x\rightarrow y) \lesssim 2^{-a\tilde {K}( y\vert x) -b}$, where $\tilde {K}( y\vert x) $ is the estimated conditional complexity of yxyx
Study of CP Violation in $D^{\pm}\rightarrow K^{\ast}(892)^{0} π^{\pm} + \bar{K}^{\ast }(892)^{0}π^{\pm}\rightarrow K_{S,L}^{0}π^0 π^{\pm}$ Decays
Creators: name: Wang, Ru-Min
name: Cheng, Xiao-Dong
name: Yuan, Xing-Bo
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Within the Standard Model, we investigate the CP violations and the $K_S^0-K_L^0$ asymmetries in $D^{\pm}\rightarrow K^{\ast}(892)^{0} π^{\pm} + \bar{K}^{\ast }(892)^{0}π^{\pm}\rightarrow K_{S,L}^{0}π^0 π^{\pm}$ decays basing on the factorization-assisted topological-amplitude (FAT) approach and the topological amplitude (TA) approach of Cheng and Chiang [Phys. Rev. D 104, 073003 (2021).]. We find that the CP violations in these decays $A_{CP}^{K_{S,L}^0}$ can exceed the order of $10^{-3}$ in the two approaches and consist of three parts: the indirect CP violations in $K^0 -\bar{K}^0$ mixing $A_{CP,K_{S,L}^0}^{mix}$, the direct CP violations in charm decays $A_{CP,K_{S,L}^0}^{dir}$ and the new CP violation effects $A_{CP,K_{S,L}^0}^{int}$, which are induced from the interference between two tree (Cabibbo-favored and doubly Cabibbo-suppressed) amplitudes with the neutral kaon mixing. The indirect CP violations in $K^0 -\bar{K}^0$ mixing play a dominant role in $A_{CP}^{K_{S,L}^0}$, the new CP violation effects have a non-negligible contribution to $A_{CP}^{K_{S,L}^0}$. We estimate the numerical results of the $K_S^0-K_L^0$ asymmetries $R_{K_{S}-K_{L}}^{D^{\pm}}$ and find that there exist a large difference between the numerical results in the FAT approach and that of the TA approach. We also find that if ones adopt the values of the decay time parameters $t_0 = 3.0 τ_S$ and $t_1 = 10.0 τ_S$, the new CP violation effect $A_{CP,K_{S}^0}^{int}$ would dominate the CP violation in $D^{\pm} \rightarrow K^{\ast}(892)^{0} π^{\pm} + \bar{K}^{\ast }(892)^{0}π^{\pm}\rightarrow K_{S}^0π^0 π^{\pm}$ decays and could be observed with $6.7\times 10^{6}$ and $6.5\times 10^{6}$ $D^{\pm}$ events-times-efficiency in the FAT approach and the TA approach, respectively. Our results could be tested by the LHCb, Belle II and BESIII experiments.
description: 38 pages
Privacy Implications of Health Information Seeking on the Web
Creators: name: Libert, Tim
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computers and Society (cs.CY)
subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: This article investigates privacy risks to those visiting health- related web pages. The population of pages analyzed is derived from the 50 top search results for 1,986 common diseases. This yielded a total population of 80,124 unique pages which were analyzed for the presence of third-party HTTP requests. 91% of pages were found to make requests to third parties. Investigation of URIs revealed that 70% of HTTP Referer strings contained information exposing specific conditions, treatments, and diseases. This presents a risk to users in the form of personal identification and blind discrimination. An examination of extant government and corporate policies reveals that users are insufficiently protected from such risks.
Different Types of Organic-Rich Geological Markers in South Pailin Field, Pattani Basin, Gulf of Thailand
Creators: name: Jittikan Narapan
Publisher: name: Department of Geology, Chulalongkorn University
Year: 2015
Subjects: Organic-rich, Geological marker, Marginal marine sediment, South Pailin, Pattani basin

description: Bulletin of Earth Sciences of Thailand (BEST), 7, 2-Jan, 240-246
Comparación de la utilidad de dos dietas hipocalóricas equilibradas con inclusión versus exclusión de pan en el tratamiento de pacientes con sobrepeso y obesidad
Creators: name: Loria-Kohen, Viviana
name: Gómez Candela, Carmen
Publisher: name: Zenodo
Year: 2011

description: El sobrepeso y la obesidad son un problema de salud pública mundial en el que la dieta desempeña un papel fundamental. El ayuno y muchas dietas de adelgazamientosuelen evitar el pan y permiten la pérdida de peso, pero con un perjuicio en la salud y situación nutricional y con una alta tasa de abandonos. El presente estudio se planteó con el objeto de comparar dos estrategias de intervención nutricional en un grupo de mujeres con sobrepeso/obesidad.El estudio se desarrolló en la Unidad de Nutrición Clínica y Dietética del Hospital Universitario La Paz en el periodo comprendido entre marzo de 2009 y febrero de2010. Se trató de un estudio clínico controlado, prospectivo y aleatorizado en el que 122 mujeres mayores de 18 años y con IMC >25 <39,9 kg/m2 fueron asignadas a 2 grupos: grupo de intervención PAN y grupo control NO PAN.

Este informe técnico describe los resultados obtenidos en el estudio.
title: Reflections on teaching process drama: A critical inquiry into our practice with/as educators
Creators: name: Wager, Amanda C.
name: Schroeter, Sara
Publisher: name: ArtsPraxis
Year: 2021
Subjects: subject: Teachers--Training of
subject: Drama in education

description: This article was originally published as: Wager, A.C. & Schroeter, S. (2021). Reflections on teaching process drama: A critical inquiry into our practice with/as educators. ArtsPraxis, 8, (1), 115-135.
description: This paper explores our experiences as drama-in-education professors teaching educators how to create and facilitate process dramas (Bolton & Heathcote, 1995; Neelands & Goode, 2000; O’Neill, 1995) in their classrooms. A process drama involves multimodal embodied drama explorations covering a specific topic that the facilitator(s) would like the participants to explore. In this narrative of practice, we present an example of process drama that our university students created and facilitated that broached critical topics surrounding social justice for their students to explore. The university students ranged from teacher candidates in a Bachelor of Education program to those with many years of experience completing a Master of Education. In our experiences teaching drama-in-education courses, we have encountered ethical dilemmas in the creation and facilitation of process dramas. Specifically, in the topics our students have selected and their positionalities as facilitators. In this article, through narrating our teaching experiences and what we learned from them, our goal is to call for artists and educators, like ourselves, to be more thoughtful in approaching the creation and facilitation of process dramas, especially when teaching people with different subjectivities and positionalities.
Jacobi fields, conjugate points and cut points on timelike geodesics in special spacetimes
Creators: name: Sokołowski, Leszek M.
name: Golda, Zdzisław A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Several physical problems such as the `twin paradox' in curved spacetimes have purely geometrical nature and may be reduced to studying properties of bundles of timelike geodesics. The paper is a general introduction to systematic investigations of the geodesic structure of physically relevant spacetimes. The investigations are focussed on the search of locally and globally maximal timelike geodesics. The method of dealing with the local problem is in a sense algorithmic and is based on the geodesic deviation equation. Yet the search for globally maximal geodesics is non-algorithmic and cannot be treated analytically by solving a differential equation. Here one must apply a mixture of methods: spacetime symmetries (we have effectively employed the spherical symmetry), the use of the comoving coordinates adapted to the given congruence of timelike geodesics and the conjugate points on these geodesics. All these methods have been effectively applied in both the local and global problems in a number of simple and important spacetimes and their outcomes have already been published in three papers. Our approach shows that even in Schwarzschild spacetime (as well as in other static spherically symetric ones) one can find a new unexpected geometrical feature: instead of one there are three different infinite sets of conjugate points on each stable circular timelike geodesic curve. Due to problems with solving differential equations we are dealing solely with radial and circular geodesics.
description: A revised and expanded version, self-contained and written in an expository style. 36 pages, 0 figures. A substantially abridged version appeared in Acta Physica Polonica B
Comets formed in solar-nebula instabilities! -- An experimental and modeling attempt to relate the activity of comets to their formation process (corrigendum included)
Creators: name: Blum, Jürgen
name: Gundlach, Bastian
name: Mühle, Steffen
name: Trigo-Rodriguez, Josep M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: When comet nuclei approach the Sun, the increasing energy flux through the surface layers leads to sublimation of the underlying ices and subsequent outgassing that promotes the observed emission of gas and dust. The ejection of dust requires that the forces binding the dust particles to the comet nucleus must be overcome by the forces caused by the sublimation process. This relates to the question of how large the tensile strength of the overlying dust layer is. Homogeneous layers of micrometer-sized dust particles reach tensile strengths of typically $10^3$ to $10^4$ Pa. This exceeds by far the maximum sublimation pressure of water ice in comets. It is therefore unclear how cometary dust activity is driven. To solve this paradox, we used the model by Skorov and Blum (Icarus 221, 1-11, 2012), who assumed that cometesimals formed by gravitational instability of a cloud of dust and ice aggregates and calculated for the corresponding structure of comet nuclei tensile strength of the dust-aggregate layers on the order of 1 Pa. Here we present evidence that the emitted cometary dust particles are indeed aggregates with the right properties to fit the model by Skorov and Blum. Then we experimentally measure the tensile strengths of layers of laboratory dust aggregates and confirm the values derived by the model. To explain the comet activity driven by the evaporation of water ice, we derive a minimum size for the dust aggregates of $\sim 1$ mm, in agreement with meteoroid observations and dust-agglomeration models in the solar nebula. Finally we conclude that cometesimals must have formed by gravitational instability, because all alternative formation models lead to higher tensile strengths of the surface layers.
description: The pdf file includes the main document and the corrigendum to the main article (just scroll through the pdf)
A Comprehensive Analysis of Hadronic b->s Transitions in a Family Non-universal Z' Model
Creators: name: Chang, Qin
name: Li, Xin-Qiang
name: Yang, Ya-Dong
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Motivated by the latest improved measurements of B-meson decays, we make a comprehensive analysis of the impact of a family non-universal $Z^{\prime}$ boson on $B_s-\bar{B}_s$ mixing and two-body hadronic B-meson decays, all being characterized by the quark-level $b\to s$ transition. Explicitly 22 decay modes and the related 52 observables are considered, and some interesting correlations between them are also carefully examined. Firstly, the allowed oases of $b-s-Z^{\prime}$ coupling parameters $|B^{L,R}_{sb}|$ and $ϕ^{L,R}_s$ are extracted from $B_s-\bar{B}_s$ mixing. Then, in the "SM limit"~({\it i.e.,} no new types of $Z^{\prime}$-induced four-quark operators arise compared to the SM case), we study the $Z^{\prime}$ effects on $B\toπK$, $πK^{\ast}$ and $ρK$ decays. It is found that a new weak phase $ϕ^{L}_s\sim -90^{\circ}$ is crucial for resolving the observed "$πK$ CP puzzle" and the allowed oases of the other $Z^{\prime}$ coupling parameters are also strongly restricted. Moreover, the $Z^{\prime}$ effects on $\bar{B}_s\to K K$, $K K^{\ast}$ and $π^0 ϕ$ decays, being induced by the same quark-level $b\to s q\bar{q}~(q=u,d)$ transitions, are also investigated. Especially, it is found that the decay $\bar{B}_s \to π^0 ϕ$, once measured, would play a key role in revealing the observed "$πK$ CP puzzle" and probing possible new physics hints. Finally, to check the non-universality of $Z^{\prime}$ couplings to light-quark pairs, we have studied the $B\to ϕK$ decays in detail and found that the left-handed $s-s-Z^{\prime}$ coupling is different from the $d-d-Z^{\prime}$ one, which is due to the large $A_{CP}^{dir}(B^-\toϕK^-)$ reported by the BaBar collaboration.
description: 38 pages, 11 figures; To appear in JPG
Self-Interacting Dark Matter from a Non-Abelian Hidden Sector
Creators: name: Boddy, Kimberly K.
name: Feng, Jonathan L.
name: Kaplinghat, Manoj
name: Tait, Tim M. P.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: There is strong evidence in favor of the idea that dark matter is self interacting, with the cross section-to-mass ratio $σ/ m \sim 1\,\mathrm{cm^2/g} \sim 1\,\mathrm{barn/GeV}$. We show that viable models of dark matter with this large cross section are straightforwardly realized with non-Abelian hidden sectors. In the simplest of such models, the hidden sector is a pure gauge theory, and the dark matter is composed of hidden glueballs with a mass around $100\,\mathrm{MeV}$. Alternatively, the hidden sector may be a supersymmetric pure gauge theory with a $\sim 10\,\mathrm{TeV}$ gluino thermal relic. In this case, the dark matter is largely composed of glueballinos that strongly self interact through the exchange of light glueballs. We present a unified framework that realizes both of these possibilities in anomaly-mediated supersymmetry breaking, where, depending on a few model parameters, the dark matter may be composed of hidden glueballinos, hidden glueballs, or a mixture of the two. These models provide simple examples of multicomponent dark matter, have interesting implications for particle physics and cosmology, and include cases where a subdominant component of dark matter may be extremely strongly self interacting, with interesting astrophysical consequences.
description: 25 pages; v2: added references, published version; v3: note added
The construction and negotiation of male depression in online forums
Creators: name: Athanasiadis, Chrysostomos
Publisher: name: Leeds Beckett University
Year: 2023

description: Depression is less commonly diagnosed in men, possibly, as a function of masculinity norms, endorsing emotional control and self-management. This has clear implications for men’s mental health, considering that some men who experience depression often do not make use of appropriate support resources. In this thesis I embarked upon an exploration of men’s accounts of their depression, aiming to enhance current understandings of men’s experiences of depression, and to contribute to the improvement of mental health promotion for men who experience depression. I selected to work with online unsolicited narratives in an attempt to move away from some of the disadvantages associated with the use of interviews. I conducted three studies, using constructivist grounded theory. In Study 1, I analysed online interactions of men who experience depression from four online forums. In Study 2 I included online interactions of female partners of men with depression. Lastly, in Study 3, I worked with a video, and the associated commentary, from a social media platform where contributors were discussing stoicism in men with depression. Overall, the findings from the studies show the prevalence of stoicism in men with depression. Male forum users who experienced depression often used online forums to access support, but also as a way of self-managing their depression by relying on forum support. Additionally, men’s stoicism was often underpinned by adherence to regressive masculinity norms. Stoicism in men with depression was further promoted via the elicitation of complicity from female partners. The findings further show that younger users of these digital spaces often voiced anti-stoic messages and showed increased levels of openness to emotional expressiveness and to help-seeking. My recommendations for further research include the areas of female partners’ experiences and younger people’s perspectives. Furthermore, I make suggestions that could help clinical practice and mental health initiatives to reach out to men who experience depression more effectively.
A revised formalism for slowly-rotating superfluid neutron stars in general relativity
Creators: name: Aranguren, Eneko
name: Font, José A.
name: Sanchis-Gual, Nicolas
name: Vera, Raül
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We discuss slowly-rotating, general relativistic, superfluid neutron stars in the Hartle-Thorne formulation. The composition of the stars is described by a simple two-fluid model which accounts for superfluid neutrons and all other constituents. We apply a perturbed matching framework to derive a new formalism for slowly-rotating superfluid neutron stars, valid up to second-order perturbation theory, building on the original formulation reported by Andersson and Comer in 2001. The present study constitutes an extension of previous work in the single-fluid case where it was shown that the Hartle-Thorne formalism needs to be amended since it does not provide the correct results when the energy density does not vanish at the surface of the star. We discuss in detail the corrections that need to be applied to the original two-fluid formalism in order to account for non vanishing energy densities at the boundary. In the process, we also find a correction needed in the computation of the deformation of the stellar surface in the original two-fluid model in all cases (irrespective of the value of the energy density at the surface). The discrepancies found between the two formalisms are illustrated by building numerical stellar models, focusing on the comparison in the calculation of the stellar mass, the deformation of the star, and in the Kepler limit of rotation. In particular, using a toy-model equation of state for which the energy density does not vanish at the boundary of the star we demonstrate that the corrections to the formalism we find impact the structure of slowly-rotating superfluid neutron stars in a significant way.
description: 24 pages, 16 figures: v2. minor corrections and changes to match the published version
Diagenesis and Petrophysical Rock-Type Study of Oligocene Berai Carbonate Platform in "KX-1" Well, CentralKalimantan: Implications for Depositional and Reservoir Models
Creators: name: Laya, Krishna Pratama
Publisher: name: Department of Geology, Chulalongkorn University
Year: 2015
Subjects: carbonate platforn, oligophotic, land-attached, interlayered grainstone reservoir, microfractures

description: Bulletin of Earth Sciences of Thailand (BEST), 7, 2-Jan, 247-255
title: We Didn’t Start the Fire: Effects of a Natural Disaster on Consumers’ Financial Distress
Creators: name: Ho, Anson T. Y.
name: Huynh, Kim
name: Jacho-Chávez, David T.
name: Vallée, Geneviève
Publisher: name: Bank of Canada
Year: 2023

description: Global climate change is increasing the frequency and severity of natural disasters. We use detailed consumer credit data to investigate the impact of the 2016 Fort McMurray wildfire, the costliest wildfire disaster in Canadian history, on consumers’ financial stress. We focus on the arrears of insured mortgages because of their important implications for financial institutions and insurers’ business risk and relevant management practices. Our findings suggest that wildfires have caused more mortgage arrears in severely damaged areas, with both economic and statistical significance. For other areas with relatively minor damage, the increase in arrears is small and statistically insignificant.
description: Les changements climatiques qui s’opèrent à l’échelle mondiale font que les catastrophes naturelles sont de plus en plus fréquentes et graves. Nous utilisons des données détaillées sur le crédit à la consommation afin de connaître les effets des feux de forêt qui ont ravagé Fort McMurray en 2016 – les plus coûteux de l’histoire du Canada – sur les tensions financières subies par les consommateurs. Nous nous concentrons sur les arriérés de paiement de prêts hypothécaires assurés, en raison des leurs grandes répercussions sur les institutions financières ainsi que sur le risque d’activité et les pratiques de gestion afférentes des assureurs. Nos résultats semblent indiquer que les feux de forêt ont entraîné une hausse significative – tant sur le plan économique que sur le plan statistique – des arriérés de paiement sur les prêts hypothécaires dans les régions sévèrement touchées, et seulement une hausse faible et statistiquement non significative dans les régions où les dommages étaient relativement mineurs.
Meta 7 Pesquisa e desenvolvimento de uma arquitetura de Ciência da Informação relacionada à Defesa da Concorrência
Creators: name: Pinheiro, Alessandro Lustosa Seixas
name: Cristiane De Freitas Leal
name: Moreira, Felipe Alberto
name: Da Costa, Helio Ribeiro
name: Vasconcelos, Jorge Luiz Hachem
name: De Anchieta, Wendel Sousa
name: Canedo, Edna Dias
name: Nze, Georges Daniel Amvame
name: De Sousa Júnior, Rafael Timóteo
name: Martins, Valério Aymore
name: Adailton Amaro Nunes
name: De Vasconcelos Sales, Alessandra
name: Da Silva, Aline Lima
name: De Sousa Monteiro, Ana Beatriz
name: Santana, Ana Flavia Araujo
name: Da Silva, André Luiz Chaves
name: Praciano, Bruno Justino Garcia
name: Da Silva Sousa, Caroline Emanuele
name: De Paiva, Danilo Freire Holanda
name: Taketomi, Denise Mitie
name: Silva, Edle Marcio Dos Santos
name: Soares, Eduardo Drumond
name: De Mendonça, Fábio Lúcio Lopes
name: Santos, Felipe Evangelista Dos
name: Lima, Felipe Lobão
name: Paiva, Guilherme Pereira
name: Ferreira, Hugo Bartolomeu
name: Melo, Ian Porto E
name: De Almeida Gentil, Igor
name: Martins, Isabela Carolina
name: Frota, Italo Eduardo Dias
name: Izadora Oliveira Linhares
name: Emygdio, Jeanne Louize
name: De Oliveira Gonçalves, Julia Jamile
name: Machado, Karen Ferreira
name: Barbosa, Lincoln Abreu
name: Lohana Salustiano Cardoso
name: Luiz Fernando Santos De Araujo Caduda
name: Vianna, Marcelo Dos Santos
name: Vieira, Marcio Junior
name: Da Silva Souza, Marcos Vinicius
name: Dantas, Mateus Alves
name: Noely Gomes De Lima
name: Rodrigues, Paulo Henrique Batista
name: De Arruda Faria, Rafael
name: Ribeiro, Renato Carauta
name: De Oliveira Costa, Rogerio
name: Thays De Oliveira Coelho
name: Thiago Augusto Montenegro Pestana
name: Ribeiro, Vanessa Coelho
name: Welber Santos De Oliveira
name: Zaquel Isaque Alves Cabral
Publisher: name: Zenodo
Year: 2023

description: Pesquisa Aplicada com fundamento no estudo de necessidades, análise informacional, concepção, prototipação e experimentação com vistas à inovação tecnológica e de processos no domínio da Defesa Econômica para o Conselho Administrativo de Defesa Econômica – Cade.
Lithology Prediction Using Rock Physics and Acoustic Impedance for Reservoir Distribution in Northern Pattani Basin, Gulf of Thailand
Creators: name: Dangprasitthiporn, Mayura
Publisher: name: Department of Geology, Chulalongkorn University
Year: 2015
Subjects: P-impedance, Post-stack seismic inversion, Pattani Basin

description: Bulletin of Earth Sciences of Thailand (BEST), 7, 2-Jan, 256-264
Fluid Evolution through Different Deformation Stages: A carbonate outcrop-based study in the Western Highland of Thailand Mohammad
Creators: name: Nazrul Liaw
Publisher: name: Department of Geology, Chulalongkorn University
Year: 2015
Subjects: Stable isotope, structural evolution, Three Pagodas Fault

description: Bulletin of Earth Sciences of Thailand (BEST), 7, 2-Jan, 265-276
Diagenetic controls on reservoir quality in the Shuaiba Formation of North Oman
Creators: name: Muchimaporn Khumputorn
Publisher: name: Department of Geology, Chulalongkorn University
Year: 2015
Subjects: Shuaiba Formation
Diagenetic controls
Early carbonate
North Oman

description: Bulletin of Earth Sciences of Thailand (BEST), 7, 2-Jan, 277-286
QFT: Post-training quantization via fast joint finetuning of all degrees of freedom
Creators: name: Finkelstein, Alex
name: Fuchs, Ella
name: Tal, Idan
name: Grobman, Mark
name: Vosco, Niv
name: Meller, Eldad
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (stat.ML)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: The post-training quantization (PTQ) challenge of bringing quantized neural net accuracy close to original has drawn much attention driven by industry demand. Many of the methods emphasize optimization of a specific degree-of-freedom (DoF), such as quantization step size, preconditioning factors, bias fixing, often chained to others in multi-step solutions. Here we rethink quantized network parameterization in HW-aware fashion, towards a unified analysis of all quantization DoF, permitting for the first time their joint end-to-end finetuning. Our single-step simple and extendable method, dubbed quantization-aware finetuning (QFT), achieves 4-bit weight quantization results on-par with SoTA within PTQ constraints of speed and resource.
description: Presented at CADL2022 workshop at ECCV2022
Seismic Characteristics of the Overpressure Area in Southern Pattani Basin, Gulf of Thailand
Creators: name: Nardthida Kananithikorn
Publisher: name: Department of Geology, Chulalongkorn University
Year: 2015
Subjects: Overpressure, Stacking velocity, Seismic velocity, Slower interval velocity, Pattani Basin

description: Bulletin of Earth Sciences of Thailand (BEST), 7, 2-Jan, 287-296
Shift operators from the simplex representation in momentum-space CFT
Creators: name: Caloro, Francesca
name: McFadden, Paul
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We derive parametric integral representations for the general $n$-point function of scalar operators in momentum-space conformal field theory. Recently, this was shown to be expressible as a generalised Feynman integral with the topology of an $(n-1)$-simplex, featuring an arbitrary function of momentum-space cross ratios. Here, we show all graph polynomials for this integral can be expressed in terms of the first and second minors of the Laplacian matrix for the simplex. Computing the effective resistance between nodes of the corresponding electrical network, an inverse parametrisation is found in terms of the determinant and first minors of the Cayley-Menger matrix. These parametrisations reveal new families of weight-shifting operators, expressible as determinants, that connect $n$-point functions in spacetime dimensions differing by two. Moreover, the action of all previously known weight-shifting operators preserving the spacetime dimension is manifest. Finally, the new parametric representations enable the validity of the conformal Ward identities to be established directly, without recourse to recursion in the number of points.
description: 41 pages, 1 figure. v2: published version