cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The VMC survey and the SFH of some Local Group Galaxies
Creators: name: Cioni, Maria-Rosa L.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The Ks-band magnitude distribution of carbon-rich and oxygen-rich asymptotic giant branch stars within Local Group galaxies like the Magellanic Clouds, NGC 6822, M33 and SagDIG is easily obtained from ground-based observations. Appropriate stellar evolutionary models covering a range of metallicities and star formation rates are used to produce theoretical distributions that allow us to derive the history of star formation across these galaxies. I will show the result of these studies and discuss the application of this technique to more distant systems as well as deeper observations, like those that VISTA will provide, to improve our understanding of, in particular, the Magellanic Clouds.
description: 4 pages, 2 figures, Proc. IAU Symp. No. 241, 2007
Additional file 2 of The effectiveness of simulation-based learning (SBL) on students’ knowledge and skills in nursing programs: a systematic review
Creators: name: Alharbi, Ali
name: Nurfianti, Arina
name: Mullen, Rosemary F.
name: McClure, John D.
name: Miller, William H.
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: Supplementary Material 2: Results of critical appraisal and risk of bias for quasi-experimental design studies.
Fibers are not (P)Threads: The Case for Loose Coupling of Asynchronous Programming Models and MPI Through Continuations
Creators: name: Schuchart, Joseph
name: Niethammer, Christoph
name: Gracia, José
Publisher: name: arXiv
Year: 2020
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences
subject: D.1.3

description: Asynchronous programming models (APM) are gaining more and more traction, allowing applications to expose the available concurrency to a runtime system tasked with coordinating the execution. While MPI has long provided support for multi-threaded communication and non-blocking operations, it falls short of adequately supporting APMs as correctly and efficiently handling MPI communication in different models is still a challenge. Meanwhile, new low-level implementations of light-weight, cooperatively scheduled execution contexts (fibers, aka user-level threads (ULT)) are meant to serve as a basis for higher-level APMs and their integration in MPI implementations has been proposed as a replacement for traditional POSIX thread support to alleviate these challenges. In this paper, we first establish a taxonomy in an attempt to clearly distinguish different concepts in the parallel software stack. We argue that the proposed tight integration of fiber implementations with MPI is neither warranted nor beneficial and instead is detrimental to the goal of MPI being a portable communication abstraction. We propose MPI Continuations as an extension to the MPI standard to provide callback-based notifications on completed operations, leading to a clear separation of concerns by providing a loose coupling mechanism between MPI and APMs. We show that this interface is flexible and interacts well with different APMs, namely OpenMP detached tasks, OmpSs-2, and Argobots.
description: 12 pages, 7 figures Published in proceedings of EuroMPI/USA '20, September 21-24, 2020, Austin, TX, USA
การพัฒนาโปรแกรมส่งเสริมความสามารถในการให้เหตุผลจริยธรรมทางดิจิทัล โดยใช้แนวคิดการศึกษาแบบเน้นผลลัพธ์และการเรียนรู้แบบกรณีศึกษาเป็นฐาน สำหรับนักเรียนมัธยมศึกษาตอนต้น
Creators: name: วิวัฒน์ ทัศวา
Publisher: name: Office of Academic Resources
Year: 2021
Subjects: โปรแกรมส่งเสริมการให้เหตุผลจริยธรรมทางดิจิทัล
การศึกษาแบบเน้นผลลัพธ์
การเรียนรู้แบบกรณีศึกษาเป็นฐาน
Program enhancing digital ethics reasoning
Outcome-based education
Cased-based learn

description: Journal of Information and Learning, 32, 1, 1-16
Production experiment, subject 14
Creators: name: Lau-Preechathammarach, Raksit Tyler
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2023
Subjects: subject: kdt

description: Target and distractor stimuli embedded in carrier sentences. Subject is a 20-year-old male. Carried out in a quiet room in the temple of Wat Nakharin in Ban Khi Nak.
Additional file 1 of The effectiveness of secondary-school based interventions on the future physical activity of adolescents in Aotearoa New Zealand: a modelling study
Creators: name: Bergen, Tom
name: Richards, Justin
name: Kira, Geoff
name: Kim, Alice Hyun Min
name: Signal, Louise
name: Mizdrak, Anja
Publisher: name: figshare
Year: 2024
Subjects: subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: Supplementary Material 1: Additional file 1 Methodology for the creation of determinants of future physical activity participation.
Product risk assessment: a Bayesian network approach
Creators: name: Hunte, Joshua
name: Neil, Martin
name: Fenton, Norman
Publisher: name: arXiv
Year: 2020
Subjects: subject: Other Statistics (stat.OT)
subject: Artificial Intelligence (cs.AI)
subject: Methodology (stat.ME)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Product risk assessment is the overall process of determining whether a product, which could be anything from a type of washing machine to a type of teddy bear, is judged safe for consumers to use. There are several methods used for product risk assessment, including RAPEX, which is the primary method used by regulators in the UK and EU. However, despite its widespread use, we identify several limitations of RAPEX including a limited approach to handling uncertainty and the inability to incorporate causal explanations for using and interpreting test data. In contrast, Bayesian Networks (BNs) are a rigorous, normative method for modelling uncertainty and causality which are already used for risk assessment in domains such as medicine and finance, as well as critical systems generally. This article proposes a BN model that provides an improved systematic method for product risk assessment that resolves the identified limitations with RAPEX. We use our proposed method to demonstrate risk assessments for a teddy bear and a new uncertified kettle for which there is no testing data and the number of product instances is unknown. We show that, while we can replicate the results of the RAPEX method, the BN approach is more powerful and flexible.
description: 32 pages, 12 figures, 1 table
ผลการเรียนรู้ด้วยตนเองผ่านอินเทอร์เน็ตต่อความรู้และความสามารถในการดูแลตนเองในผู้ป่วยที่ได้รับการผ่าตัดทำทางเบี่ยงหลอดเลือดแดงโคโรนารี่
Creators: name: อนุสรา มั่นศิลป์
Publisher: name: Office of Academic Resources
Year: 2021
Subjects: การเรียนรู้ด้วยตนเองผ่านอินเทอร์เน็ต
ความรู้
ความสามารถในการดูแลตนเอง
การผ่าตัดทำทางเบี่ยงหลอดเลือดแดงโคโรนารี่
Self-directed learning by internet
Knowledge
Self-care ability
Coronary Artery Bypass Grafting

description: Journal of Information and Learning, 32, 1, 17-28
Second Generation Readout For Large Format Photon Counting Microwave Kinetic Inductance Detectors
Creators: name: Fruitwala, Neelay
name: Strader, Paschal
name: Cancelo, Gustavo
name: Zmuda, Ted
name: Treptow, Ken
name: Wilcer, Neal
name: Stoughton, Chris
name: Walter, Alex B.
name: Zobrist, Nicholas
name: Collura, Giulia
name: Lipartito, Isabel
name: Bailey, John I.
name: Mazin, Benjamin A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We present the development of a second generation digital readout system for photon counting microwave kinetic inductance detector (MKID) arrays operating in the optical and near-IR wavelength bands. Our system retains much of the core signal processing architecture from the first generation system, but with a significantly higher bandwidth, enabling readout of kilopixel MKID arrays. Each set of readout boards is capable of reading out 1024 MKID pixels multiplexed over 2 GHz of bandwidth; two such units can be placed in parallel to read out a full 2048 pixel microwave feedline over a 4 -- 8 GHz band. As in the first generation readout, our system is capable of identifying, analyzing, and recording photon detection events in real time with a time resolution of order a few microseconds. Here, we describe the hardware and firmware, and present an analysis of the noise properties of the system. We also present a novel algorithm for efficiently suppressing IQ mixer sidebands to below -30 dBc.
description: 12 pages, 12 figures
MPEC 2024-A30 : 2024 AL
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 AL

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
ผลการใช้หนังสือนิทานจ๊ะเอ๋ (ฉบับยาวี-ไทย) ต่อความสัมพันธ์ในครอบครัวและพัฒนาการบุตรก่อนวัยเรียนของครอบครัวมุสลิมสามจังหวัดชายแดนภาคใต้
Creators: name: นัชชิมา บาเกาะ
Publisher: name: Office of Academic Resources
Year: 2021
Subjects: หนังสือนิทานจ๊ะเอ๋
ความสัมพันธ์ในครอบครัว
พัฒนาการบุตร
บุตรก่อนวัยเรียน
Peekaboo storybook
Family relations
Children development
Preschool children

description: Journal of Information and Learning, 32, 1, 29-40
2-torus manifolds, cobordism and small covers
Creators: name: Lü, Zhi
Publisher: name: arXiv
Year: 2007
Subjects: subject: Algebraic Topology (math.AT)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 57R85, 57S17, 55N22, 05C10, 57M60

description: Let ${\frak M}_n$ be the set of equivariant unoriented cobordism classes of all $n$-dimensional 2-torus manifolds, where an $n$-dimensional 2-torus manifold $M$ is a smooth closed manifold of dimension $n$ with effective smooth action of a rank $n$ 2-torus group $({\Bbb Z}_2)^n$. Then ${\frak M}_n$ forms an abelian group with respect to disjoint union. This paper determines the group structure of ${\frak M}_n$ and shows that each class of ${\frak M}_n$ contains a small cover as its representative in the case $n=3$.
description: 19 pages, 4 figures
Pipa pai : concept, history and analysis of style
Creators: name: Lin, Esther E-Shiun
Publisher: name: University of British Columbia
Year: 2009

description: Imported into China about two millenia ago, the pipa, a four-stringed plucked lute, and its music, have become treasures in Chinese culture. Solo pipa music has continued to dominate Chinese music culture because of its close association with the pai ("school") tradition. The main focus of this thesis is upon the development of a comprehensive understanding of pipa schools through social, historical and analytical perspectives. In the Introduction, my purpose, methods and scope of the investigation and the relevant reference sources will be discussed. Chapter I is concerned with the nature, formation, gender identification and professionalism and amateurism of school tradition. Following this, Chapter II deals with the history of known pipa schools and their different concepts. Lastly in Chapter III, three detailed transcriptions of one piece, BawangXiejia ("The Warlord Removes His Armour"), will be compared to reveal characteristics of Wang pai, Pudong pai and Pinghu pai. Emphasis is placed on the form of each version and the performance techniques specific to each school. The form is analyzed under the following three categories: titles of sections, metered and free meter sections, and thematic content.
การพัฒนาความสามารถในการอ่านเพื่อส่งเสริมการคิดวิเคราะห์ด้วยเทคนิค KWL Plus รายวิชาภาษาไทยสำหรับอุดมศึกษา สำหรับนักศึกษาชั้นปีที่ 1 สถาบันการพลศึกษา วิทยาเขตยะลา
Creators: name: ยะห์ยา สะมะแอ
Publisher: name: Office of Academic Resources
Year: 2021
Subjects: การพัฒนาความสามารถในการอ่าน
การอ่านเพื่อส่งเสริมการคิดวิเคราะห์
เทคนิค KWL Plus
สถาบันการพลศึกษา วิทยาเขตยะลา
Reading ability development
Reading to promote critical thinking
KWL Plus technique
Institute of Physical Education
Yala Campus

description: Journal of Information and Learning, 32, 1, 41-51
Coupling of Spin and Orbital Motion of Electrons in Carbon Nanotubes
Creators: name: Kuemmeth, F.
name: Ilani, S.
name: Ralph, D. C.
name: McEuen, P. L.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Electrons in atoms possess both spin and orbital degrees of freedom. In non-relativistic quantum mechanics, these are independent, resulting in large degeneracies in atomic spectra. However, relativistic effects couple the spin and orbital motion leading to the well-known fine structure in their spectra. The electronic states in defect-free carbon nanotubes (NTs) are widely believed to be four-fold degenerate, due to independent spin and orbital symmetries, and to also possess electron-hole symmetry. Here we report measurements demonstrating that in clean NTs the spin and orbital motion of electrons are coupled, thereby breaking all of these symmetries. This spin-orbit coupling is directly observed as a splitting of the four-fold degeneracy of a single electron in ultra-clean quantum dots. The coupling favours parallel alignment of the orbital and spin magnetic moments for electrons and anti-parallel alignment for holes. Our measurements are consistent with recent theories that predict the existence of spin-orbit coupling in curved graphene and describe it as a spin-dependent topological phase in NTs. Our findings have important implications for spin-based applications in carbon-based systems, entailing new design principles for the realization of qubits in NTs and providing a mechanism for all-electrical control of spins in NTs.
description: 14 pages, 6 figures
Production experiment, subject 13
Creators: name: Lau-Preechathammarach, Raksit Tyler
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2023
Subjects: subject: kdt

description: Target and distractor stimuli embedded in carrier sentences. Subject is a 24-year-old female. Carried out in a quiet room in the temple of Wat Nakharin in Ban Khi Nak.
แนวทางประยุกต์การคิดเชิงออกแบบเพื่อสร้างการเปลี่ยนแปลงในสถานศึกษา
Creators: name: จารุวัจน์ สองเมือง
Publisher: name: Office of Academic Resources
Year: 2021
Subjects: การคิดเชิงออกแบบ
นวัตกรรมการจัดการเรียนรู้
การบริหารการศึกษา
องค์กรแห่งนวัตกรรม
Design Thinking
Instructional innovation
Educational administration
Innovative organization

description: Journal of Information and Learning, 32, 1, 52-57
Additional file 6 of The effectiveness of secondary-school based interventions on the future physical activity of adolescents in Aotearoa New Zealand: a modelling study
Creators: name: Bergen, Tom
name: Richards, Justin
name: Kira, Geoff
name: Kim, Alice Hyun Min
name: Signal, Louise
name: Mizdrak, Anja
Publisher: name: figshare
Year: 2024
Subjects: subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: Supplementary Material 6: Additional file 6 Total population summary averages for each determinant value across sociodemographic groups and intervention conditions.
The Science of Fundamental Catalogs
Creators: name: Kopeikin, Sergei M.
name: Makarov, Valeri V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: This review paper discusses the science of astrometric catalogs, their current applications and future prospects for making progress in fundamental astronomy, astrophysics and gravitational physics. We discuss the concept of fundamental catalogs, their practical realizations, and future prospects. Particular attention is paid to the astrophysical implementations of the catalogs such as the measurement of the Oort constants, the secular aberration and parallax, and asteroseismology. We also consider the use of the fundamental catalogs in gravitational physics for testing general theory of relativity and detection of ultra-long gravitational waves of cosmological origin.
description: 20 pages, 185 references, accepted to Frontiers in Astronomy and Space Sciences (Fundamental Astronomy Section)
title: Scaling Genetic Algorithms to Large Distributed Datasets
Creators: name: Alterkawi, Laila
Publisher: name: University of Kent
Year: 2022

description: Analysing large-scale data brings promises of new levels of scientific discovery and economic value. However, the fact that such volume of data is by its nature distributed and the need for new computational methods to be effective in the face of significant changes in data complexity and size has led to the need to develop large-scale data analytics. Genetic algorithms (GAs) have proven their flexibility in many application areas, and substantial research has been dedicated to improving their performance through parallelisation. In contrast with most previous efforts, we reject approaches based on the centralisation of data in the main memory of a single node or requiring remote access to shared/distributed memory. We focus instead on scenarios where data is partitioned across machines. In this partitioned scenario, we explore two parallelisation models: PDMS, inspired by the traditional master-slave model, and PDMD, based on island models. We adopt the two models to distribute BioHEL, a popular large-scale single-node GA classifier, using the Spark distributed data processing platform. We investigate the effect of GA control parameters (population size and migration frequency).We study the accuracy, time performance and scalability of the proposed models. Our results show that our distributed genetic algorithm design provides a good tradeoff between accuracy and time. We then extend the two models using automatic termination and population sizing to enhance the distributed genetic algorithm ease-of-use. Moreover, after testing this strategy on both models, we show that the applied automation offers a promising enhancement on the performance of the initially designed GA models.
Additional file 3 of The effectiveness of secondary-school based interventions on the future physical activity of adolescents in Aotearoa New Zealand: a modelling study
Creators: name: Bergen, Tom
name: Richards, Justin
name: Kira, Geoff
name: Kim, Alice Hyun Min
name: Signal, Louise
name: Mizdrak, Anja
Publisher: name: figshare
Year: 2024
Subjects: subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: Supplementary Material 3: Additional file 3 Methodology for intervention cost adjustments.
Accuracy of meteor positioning from space-and ground-based observations
Creators: name: Chen, Hongru
name: Rambaux, Nicolas
name: Vaubaillon, Jérémie
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Aims. The knowledge of the orbits and origins derived from meteors is important for the study of meteoroids and of the early solar system. With an increase in nano-satellite projects dedicated to Earth observations or directly to meteor observations (e.g., the Meteorix CubeSat), we investigate the stereoscopic measurement of meteor positions using a pair of cameras, one deployed in space and one on the ground, and aim to understand the accuracy and the main driving factors. This study will reveal the requirements for system setups and the geometry favorable for meteor triangulation. Methods. This Letter presents the principle of the stereoscopic measurement from space and the ground, and an error analysis. Specifically, the impacts of the resolutions of the cameras, the attitude and orbit determination accuracy of the satellite, and the geometry formed by the moving target and observers are investigated. Results. To reach a desirable positioning accuracy of 1 km it is necessary to equip the satellite with high-accuracy sensors (e.g., star tracker and GPS receiver) to perform fine attitude and orbit determination. The best accuracy can occur when the target is at an elevation of 30 deg. with respect to the ground station.
Gluon saturation effects on single spin asymmetries
Creators: name: Boer, Daniel
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider forward pion production in p p collisions at RHIC energies,which probes the so-called Extended Geometric Scaling region. Upon inclusion of small-x effects via an anomalous dimension within the Color Glass Condensate formalism at leading order in alpha_s, a good description of the cross section as a function of the transverse momentum of the produced pion is obtained. The latter is essential for extractions of the Sivers effect from polarized p p collisions, since it is a sensitive probe of the slope of the cross section. Hence, the presented approach is well suited to extract the Sivers effect from single spin asymmetries in forward pion production at high energies.
description: 4 pages, 3 figures, talk presented at the 17th International Spin Physics Symposium, SPIN2006, Kyoto, Japan, October 2-7, 2006
Deterministic constant-temperature dynamics for dissipative quantum systems
Creators: name: Sergi, Alessandro
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A novel method is introduced in order to treat the dissipative dynamics of quantum systems interacting with a bath of classical degrees of freedom. The method is based upon an extension of the Nosè-Hoover chain (constant temperature) dynamics to quantum-classical systems. Both adiabatic and nonadiabatic numerical calculations on the relaxation dynamics of the spin-boson model show that the quantum-classical Nosè-Hoover chain dynamics represents the thermal noise of the bath in an accurate and simple way. Numerical comparisons, both with the constant energy calculation and with the quantum-classical Brownian motion treatment of the bath, show that the quantum-classical Nosè-Hoover Chain dynamics can be used to introduce dissipation in the evolution of a quantum subsystem even with just one degree of freedom for the bath. The algorithm can be computationally advantageous in modeling, within computer simulation, the dynamics of a quantum subsystem interacting with complex molecular environments.
description: Revised version
An exploratory assessment of a multidimensional healthcare and economic data on COVID-19 in Nigeria
Creators: name: Ogundepo, Ezekiel
name: Folorunso, Sakinat
name: Adekanmbi, Olubayo
name: Akinsande, Olalekan
name: Banjo, Oluwatobi
name: Ogbuju, Emeka
name: Oladipo, Francisca
name: Abimbola, Olawale
name: Oseghale, Ehizokhale
name: Babajide, Oluwatobi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applications (stat.AP)
subject: Other Statistics (stat.OT)
subject: FOS: Computer and information sciences

description: The coronavirus disease of 2019 (COVID-19) is a pandemic that is ravaging Nigeria and the world at large. This data article provides a dataset of daily updates of COVID-19 as reported online by the Nigeria Centre for Disease Control (NCDC) from February 27, 2020 to September 29, 2020. The data were obtained through web scraping from different sources and it includes some economic variables such as the Nigeria budget for each state in 2020, population estimate, healthcare facilities, and the COVID-19 laboratories in Nigeria. The dataset has been processed using the standard of the FAIR data principle which encourages its findability, accessibility, interoperability, and reusability and will be relevant to researchers in different fields such as Data Science, Epidemiology, Earth Modelling, and Health Informatics.
Antiferromagnetic Ising spin glass competing with BCS pairing interaction in a transverse field
Creators: name: Magalhaes, S. G.
name: Zimmer, F. M.
name: Kipper, C. J.
name: Callegari, E. J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The competition among spin glass (SG), antiferromagnetism (AF) and local pairing superconductivity (PAIR) is studied in a two-sublattice fermionic Ising spin glass model with a local BCS pairing interaction in the presence of an applied magnetic transverse field $Γ$. In the present approach, spins in different sublattices interact with a Gaussian random coupling with an antiferromagnetic mean $J_0$ and standard deviation $J$. The problem is formulated in the path integral formalism in which spin operators are represented by bilinear combinations of Grassmann variables. The saddle-point Grand Canonical potential is obtained within the static approximation and the replica symmetric ansatz. The results are analysed in phase diagrams in which the AF and the SG phases can occur for small $g$ ($g$ is the strength of the local superconductor coupling written in units of $J$), while the PAIR phase appears as unique solution for large $g$. However, there is a complex line transition separating the PAIR phase from the others. It is second order at high temperature that ends in a tricritical point. The quantum fluctuations affect deeply the transition lines and the tricritical point due to the presence of $Γ$.
description: 16 pages, 6 figures, accepted Eur. Phys. J. B
Data-driven subgrid-scale modeling of forced Burgers turbulence using deep learning with generalization to higher Reynolds numbers via transfer learning
Creators: name: Subel, Adam
name: Chattopadhyay, Ashesh
name: Guan, Yifei
name: Hassanzadeh, Pedram
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: Developing data-driven subgrid-scale (SGS) models for large eddy simulations (LES) has received substantial attention recently. Despite some success, particularly in a priori (offline) tests, challenges have been identified that include numerical instabilities in a posteriori (online) tests and generalization (i.e., extrapolation) of trained data-driven SGS models, for example to higher Reynolds numbers. Here, using the stochastically forced Burgers turbulence as the test-bed, we show that deep neural networks trained using properly pre-conditioned (augmented) data yield stable and accurate a posteriori LES models. Furthermore, we show that transfer learning enables accurate/stable generalization to a flow with 10x higher Reynolds number.
Anisotropic Dark Matter Stars
Creators: name: Moraes, Pedro H. R. S.
name: Panotopoulos, Grigoris
name: Lopes, Ilidio
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The properties of exotic stars are investigated. In particular, we study objects made entirely of dark matter and we take into account intrinsic anisotropies which have been ignored so far. We obtain exact analytical solutions to the structure equations and we we show that those solutions i) are well behaved within General Relativity, and ii) are capable of describing realistic astrophysical configurations.
description: Minor corrections, references added
Towards a calibration of SSP models from the optical to the mid-infrared
Creators: name: Pessev, P.
name: Goudfrooij, P.
name: Puzia, T.
name: Chandar, R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Our knowledge about unresolved stellar systems comes from comparing integrated-light properties to SSP models. Therefore it is crucial to calibrate the latter as well as possible by integrated-light colors of clusters that have reliable ages and metallicities (deep CMDs and/or spectroscopy of individual giants). This is especially true for the NIR and MIR, which contain important population synthesis diagnostics and are often used to derive masses of stellar systems at hight redshifts. Here we present integrated colors of MC clusters using new VRI photometry and 2MASS data. In the imminent future we will include MIR data from Spitzer/IRAC. We compare our new colors with popular SSP models to illustrate their strengths and weaknesses.
description: 2 pages, 1 figure, to appear in the proceedings of IAU Symposium No241 "Stellar Populations as building blocks of galaxies", A. Vazdekis & R. Peletier, eds
Stable commutator length is rational in free groups
Creators: name: Calegari, Danny
Publisher: name: arXiv
Year: 2008
Subjects: subject: Group Theory (math.GR)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M07; 20F65; 20J05; 20J06; 20F12

description: For any group, there is a natural (pseudo-)norm on the vector space B1 of real (group) 1-boundaries, called the stable commutator length norm. This norm is closely related to, and can be thought of as a relative version of, the Gromov (pseudo)-norm on (ordinary) homology. We show that for a free group, the unit ball of this pseudo-norm is a rational polyhedron. It follows that stable commutator length in free groups takes on only rational values. Moreover every element of the commutator subgroup of a free group rationally bounds an injective map of a surface group. The proof of these facts yields an algorithm to compute stable commutator length in free groups. Using this algorithm, we answer a well-known question of Bavard in the negative, constructing explicit examples of elements in free groups whose stable commutator length is not a half-integer.
description: 21 pages, 4 figures; version 2 incorporates referees' suggestions
Additional file 4 of Inclusion of people with multiple long-term conditions in pregnancy research: patient, public and stakeholder involvement and engagement in a randomised controlled trial
Creators: name: Vowles, Zoë
name: Ashworth, Danielle C.
name: Barron, Rebecca L.
name: Conti-Ramsden, Frances
name: Wilson, Hannah
name: Leighton, Lisa
name: Wall, Louise
name: Walter, Cherrelle
name: Myers, Jenny
name: Chappell, Lucy C.
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Neuroscience
subject: Biotechnology
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences

description: Supplementary Material 4
Additional file 1 of Inclusion of people with multiple long-term conditions in pregnancy research: patient, public and stakeholder involvement and engagement in a randomised controlled trial
Creators: name: Vowles, Zoë
name: Ashworth, Danielle C.
name: Barron, Rebecca L.
name: Conti-Ramsden, Frances
name: Wilson, Hannah
name: Leighton, Lisa
name: Wall, Louise
name: Walter, Cherrelle
name: Myers, Jenny
name: Chappell, Lucy C.
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Neuroscience
subject: Biotechnology
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences

description: Supplementary Material 1
Spin contribution to the perihelion precession in binary systems like OJ287: higher order corrections
Creators: name: Marín, Carlos
name: poveda, Jorge
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Higher order corrections are obtained for the perihelion precession in binary systems like OJ287, Sagittarius A*-S2 and H1821+643 using both the Schwarzschild metric and the Kerr metric to take into account the spin effect. The corrections are performed considering the third root of the motion equation and developing the expansion in terms of $ε\equiv r_s/\left(a(1-e^2)\right)$ and $ε^{*} \equiv \left(1- \frac{2 αE'}{cJ}\right) ε$.The results are compared with those obtained in a previous paper.
description: 20 pages, 1 figure. arXiv admin note: text overlap with arXiv:1802.03333
Additional file 2 of Inclusion of people with multiple long-term conditions in pregnancy research: patient, public and stakeholder involvement and engagement in a randomised controlled trial
Creators: name: Vowles, Zoë
name: Ashworth, Danielle C.
name: Barron, Rebecca L.
name: Conti-Ramsden, Frances
name: Wilson, Hannah
name: Leighton, Lisa
name: Wall, Louise
name: Walter, Cherrelle
name: Myers, Jenny
name: Chappell, Lucy C.
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Neuroscience
subject: Biotechnology
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences

description: Supplementary Material 2
Predicted and observed evolution in the mean properties of Type Ia supernovae with redshift
Creators: name: Howell, D. Andrew
name: Sullivan, Mark
name: Conley, Alex
name: Carlberg, Ray
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Recent studies indicate that Type Ia supernovae (SNe Ia) consist of two groups - a "prompt" component whose rates are proportional to the host galaxy star formation rate, whose members have broader lightcurves and are intrinsically more luminous, and a "delayed" component whose members take several Gyr to explode, have narrower lightcurves, and are intrinsically fainter. As cosmic star formation density increases with redshift, the prompt component should begin to dominate. We use a two-component model to predict that the average lightcurve width should increase by 6% from z=0-1.5. Using data from various searches we find an 8.1% +/- 2.7% increase in average lightcurve width for non-subluminous SNe Ia from z=0.03 - 1.12, corresponding to an increase in the average intrinsic luminosity of 12%. To test whether there is any bias after supernovae are corrected for lightcurve shape we use published data to mimic the effect of population evolution and find no significant difference in the measured dark energy equation of state parameter, w. However, future measurements of time-variable w will require standardization of SN Ia magnitudes to 2% up to z=1.7, and it is not yet possible to assess whether lightcurve shape correction works at this level of precision. Another concern at z=1.5 is the expected order of magnitude increase in the number of SNe Ia that cannot be calibrated by current methods.
description: 5 pages, 3 figures, accepted to ApJ Letters, addressed referee's comments, table added
Production experiment, subject 12
Creators: name: Lau-Preechathammarach, Raksit Tyler
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2023
Subjects: subject: kdt

description: Target and distractor stimuli embedded in carrier sentences. Subject is a 53-year-old female. Carried out in a quiet room in the temple of Wat Nakharin in Ban Khi Nak.
Superintegrable 3-body systems on the line
Creators: name: Chanu, Claudia
name: Degiovanni, Luca
name: Rastelli, Giovanni
Publisher: name: arXiv
Year: 2008
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We consider classical three-body interactions on a Euclidean line depending on the reciprocal distance of the particles and admitting four functionally independent quadratic in the momenta first integrals. These systems are superseparable (i.e. multiseparable), superintegrable and equivalent (up to rescalings) to a one-particle system in the three-dimensional Euclidean space. Common features of the dynamics are discussed. We show how to determine the quantum symmetry operators associated with the first integrals considered here but do not analyze the corresponding quantum dynamics. The conformal superseparability is proved and examples of conformal first integrals are given. The systems considered here in generality include the Calogero, Wolfes, and other three-body interactions widely studied in mathematical physics.
description: Corrected typos. Some improvements
Multiaperture $UBVRIzJHK$ Photometry of Galaxies in the Coma Cluster
Creators: name: Eisenhardt, P. R.
name: De Propris, R.
name: Gonzalez, A.
name: Stanford, S. A.
name: Dickinson, M. E.
name: Wang, M. C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a set of $UBVRIzJHK_s$ photometry for 745 $J+H$ band selected objects in a $22.5' \times 29.2'$ region centered on the core of the Coma cluster. This includes 516 galaxies and is at least 80% complete to H=16, with a spectroscopically complete sample of 111 cluster members (nearly all with morphological classification) for $H < 14.5$. For each object we present total \cite{kron80} magnitudes and aperture photometry. As an example, we use these data to derive color-magnitude relations for Coma early-type galaxies, measure the intrinsic scatter of these relations and its dependence on galaxy mass, and address the issue of color gradients. We find that the color gradients are mild and that the intrinsic scatter about the color-magnitude relation is small ($\sim 0.05$ mag in $U-V$ and less than $\sim 0.03$ in $B-R$, $V-I$ or $J-K$). There is no evidence that the intrinsic scatter varies with galaxy luminosity, suggesting that the cluster red sequence is established at early epochs over a range of $\sim 100$ in stellar mass.
description: 41 pages, 5 figures, 18 data tables attached to source files or available on request from R. De propris. Accepted for publication in Astrophysical Journal Supplement Series
Additional file 3 of Inclusion of people with multiple long-term conditions in pregnancy research: patient, public and stakeholder involvement and engagement in a randomised controlled trial
Creators: name: Vowles, Zoë
name: Ashworth, Danielle C.
name: Barron, Rebecca L.
name: Conti-Ramsden, Frances
name: Wilson, Hannah
name: Leighton, Lisa
name: Wall, Louise
name: Walter, Cherrelle
name: Myers, Jenny
name: Chappell, Lucy C.
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Neuroscience
subject: Biotechnology
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences

description: Supplementary Material 3
The Determination of Stellar Parameters of Giants in the Galactic Disks and Bulge
Creators: name: Byström, J.
name: Ryde, N.
name: Feltzing, S.
name: Holmberg, J.
name: Bensby, T.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Here, we present our on-going work on the determination of stellar parameters of giants in the Galactic Disks and Bulge observed with UVES on the VLT. We present some preliminarily results.
description: 2 pages, IAU241 conference proceedings
การจัดการข้อมูลขนาดใหญ่สำหรับการกำหนดกลยุทธ์เพื่ออนาคตของธุรกิจอาหารและเครื่องดื่มในประเทศไทย
Creators: name: จิรชาติ บุญสุข
Publisher: name: Office of Academic Resources
Year: 2021
Subjects: การจัดการข้อมูลขนาดใหญ่
ธุรกิจอาหาร
ธุรกิจเครื่องดื่ม
กลยุทธ์เพื่ออนาคต
กลยุทธ์การคาดการณ์
Big data management
Food business
Beverage business
Future strategies
Foresight strategies

description: Journal of Information and Learning, 32, 2, 1-14
Gravitino production in an inflationary Universe and implications for leptogenesis
Creators: name: Rangarajan, Raghavan
name: Sahu, Narendra
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Models of leptogenesis are constrained by the low reheat temperature at the end of reheating associated with the gravitino bound. However a detailed view of reheating, in which the maximum temperature during reheating, $\Tmax$, can be orders of magnitude higher than the reheat temperature, allows for the production of heavy Majorana neutrinos needed for leptogenesis. But then one must also consider the possibility of enhanced gravitino production in such scenarios. In this article we consider gravitino production during reheating, its dependence on $\Tmax$, and its relevance for leptogenesis. Earlier analytical studies of the gravitino abundance have only considered gravitino production in the post-reheating radiation dominated era. We find that the gravitino abundance generated during reheating is comparable to that generated after reheating. This lowers the upper bound on the reheat temperature by a factor of 4/3.
description: Journal version, minor change in title, 13 pages (revtex), 2 eps figures
Prosthesis survival after revision knee arthroplasty for “pain without loosening” versus “aseptic loosening”: a Danish nationwide study
Creators: name: Arndt, Kristine Bollerup
name: Schrøder, Henrik M
name: Troelsen, Anders
name: Lindberg-Larsen, Martin
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Physiology
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy

description: Background and purpose — Patients having a knee arthroplasty revision for the indication “pain without loosening” may have a higher risk of re-revisions than patients revised for other indications. The primary aim of this study was to compare the survival of knee arthroplasties revised for “pain without loosening” compared with “aseptic loosening.” The second was to investigate the prosthesis survival rates in 3 surgical subgroups (total knee arthroplasty (TKA)–TKA; partial revision (revision of tibial or femoral component); unicompartmental knee arthroplasty–TKA) and to compare the prosthesis survival rates for 1997–2009 and 2010–2018. Patients and methods — 4,299 revisions were identified in the period 1997–2018 from the Danish Knee Arthroplasty Register. Of these, 1,111 (26%) were performed due to “pain without loosening” without any other indications, 674 (16%) due to “pain without loosening” combined with other indications, and 2,514 (59%) due to “aseptic loosening”. Survival analysis was performed by a Cox multivariate analysis and Kaplan–Meier curves were presented. Results — The cumulated proportions of re-revision after 2, 5, and 20 years were 12% (95% CI 10–14), 18% (CI 16–20), and 23% (CI 20–25) for “pain without loosening” versus 11% (CI 9.3–12), 16% (CI 14–17), and 19% (CI 18–21) for “aseptic loosening.” There were no statistically significant differences between the 2 indications in repeated analyses for each of the surgical subgroups. The hazard ratio for re-revision comparing “pain without loosening” with “aseptic loosening” was 1.03 (CI 0.87–1.2). The 8-year risk of re-revision for “pain without loosening” was 22% (CI 19–26) versus 22% (CI 20–25) for “aseptic loosening” in the period from 1997–2009, and 18% (CI 15–22) versus 14% (CI 13–16) in the period from 2010–2018. Interpretation — The risk of re-revision was similar for patients having a knee arthroplasty revision for the indication “pain without loosening” compared with “aseptic loosening.” However, we observed a slight improvement of prosthesis survival rates after revisions for both indications from 1997–2009 to 2010–2018. We cannot recommend for or against revision in cases with “pain without loosening” based on these data alone.
The growth of the nuclear black holes in submillimeter galaxies
Creators: name: Granato, G. L.
name: Silva, L.
name: Lapi, A.
name: Shankar, F.
name: De Zotti, G.
name: Danese, L.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We show that the ABC scenario we proposed for the co-evolution of spheroids and QSOs predicts accretion rates and masses of supermassive black holes in sub-mm galaxies in keeping with recent X-ray determinations. These masses are well below the local values, and those predicted by alternative models. The observed column densities may be mostly due to ISM in the galaxy. The contribution of the associated nuclear activity to the X-ray background is likely negligible, while they may contribute a sizeable fraction $\sim 10 %$ to hard-X cumulative counts at the faintest observed fluxes.
description: 5 pages 4 figures, MNRAS letters, accepted
ประสิทธิผลการบริหารสถาบันอุดมศึกษาในยุคดิจิทัลดิสรัปชั่น
Creators: name: กันยา นภาพงษ์
Publisher: name: Office of Academic Resources
Year: 2021
Subjects: ประสิทธิผลการบริหาร
สถาบันอุดมศึกษา
ยุคดิจิทัลดิสรัปชั่น
Administration effectiveness
Higher education institutions
Digital disruption era

description: Journal of Information and Learning, 32, 2, 15-29
Evolution of polarization orientations in a flat universe with vector perturbations: CMB and quasistellar objects
Creators: name: Morales, Juan Antonio
name: Sáez, Diego
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Various effects produced by vector perturbations (vortical peculiar velocity fields) of a flat Friedmann-Robertson-Walker background are considered. In the presence of this type of perturbations, the polarization vector rotates. A formula giving the rotation angle is obtained and, then, it is used to prove that this angle depends on both the observation direction and the emission redshift. Hence, rotations are different for distinct quasars and also for the Cosmic Microwave Background (CMB) radiation coming along different directions (from distinct points of the last scattering surface). As a result of these rotations, some correlations could appear in an initially random field of quasar polarization orientations. Furthermore, the polarization correlations of the CMB could undergo alterations. Quasars and CMB maps are both considered in this paper. In the case of linear vector modes with very large spatial scales, the maximum rotation angles appear to be of a few degrees for quasars (located at redshifts z < 2.6) and a few tenths of degree for the CMB. These last rotations produce contributions to the B-mode of the CMB polarization which are too small to be observed with PLANCK (in the near future); however, these contributions are large enough to be observed with the next generation of satellites, which are being designed to detect the small B-mode produced by primordial gravitational waves.
description: 27 pages, 4 figures, accepted for publication by Phys. Rev. D
Companions to Isolated Elliptical Galaxies: Revisiting the Bothun-Sullivan Sample
Creators: name: Madore, Barry F.
name: Freedman, Wendy L.
name: Bothun, Gregory D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: (Abridged) We investigate the number of physical companion galaxies for a sample of relatively isolated elliptical galaxies. NED has been used to reinvestigate the incidence of satellite galaxies for a sample of 34 elliptical galaxies, first investigated by Bothun & Sullivan in a visual search out to a projected search radius of 75 kpc. We have repeated their original investigation using data cataloged in NED. Nine of these elliptical galaxies appear to be members of galaxy clusters; the remaining sample of 25 galaxies reveals an average of +1.0+/-0.5 apparent companions per galaxy within a projected search radius of 75 kpc, in excess of two equal-area comparison regions displaced by 150-300 kpc. This is significantly larger than the +0.12+/-0.42 companions/galaxy found by Bothun & Sullivan for the identical sample. Making use of published radial velocities identifies physical companions and gives a somewhat lower estimate of +0.4 companions per elliptical galaxy. An expansion of the search radius out to 300 kpc.
description: First figures available in published version only