cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
NLO QCD corrections to pseudoscalar quarkonium production with two heavy flavors in photon-photon collision
Creators: name: Yang, Hao
name: Chen, Zi-Qiang
name: Qiao, Cong-Feng
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We calculate the next-to-leading order (NLO) quantum chromodynamics (QCD) corrections to $γ+γ\to η_c+c+\bar{c}$, $γ+γ\to η_b+b+\bar{b}$ and $γ+γ\to B_c+b+\bar{c}$ processes in the framework of non-relativistic QCD (NRQCD) factorization formalism. The cross sections at the SuperKEKB electron-positron collider, as well as the future collider like the Circular Electron Positron Collider (CEPC), are evaluated. Numerical results indicate that the NLO corrections are significant, and the uncertainties in theoretical predictions with NLO corrections are reduced as expected. Due to the high luminosity of the SuperKEKB collider, the $η_c+c+\bar{c}$ production is hopefully observable in the near future.
Entropy of Kerr--Newman--AdS black holes with torsion
Creators: name: Blagojević, Milutin
name: Cvetković, Branislav
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The canonical approach to black hole entropy in Poincaré gauge theory without matter is extended to include Maxwell field as a matter source. The new formalism is used to calculate asymptotic charges and entropy of Kerr--Newmann--AdS black holes with torsion. The result implies that the first law, with a nontrivial contribution of the Maxwell field, takes the same form as in general relativity.
description: LaTex, 17 pages
The Environment and Constraints on the Mass of FRB 190520B
Creators: name: Katz, J. I.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Recent observations of FRB 20190520B have revealed rapid fluctuation of its Dispersion Measure within apparently fixed bounds, as well as a reversal of its Rotation Measure. The fluctuations of Dispersion Measure are uncorrelated with the intervals between bursts, setting upper bounds $\sim 10\,$s on any characteristic time scale of the dispersing region; it must be very compact. Measurements of the full dependence of the dispersive time delay on frequency may determine the actual electron density and the size of this region. It is possible to set a lower bound on the mass of the FRB source from constraints on the size of the dispersing region and its time scale of variation. Comparison of the variations of DM and RM leads to an estimate of the magnetic field $\sim 500\,μ$G.
description: 3 pp., 1 fig
Constraining Black Hole Natal Kicks with Astrometric Microlensing
Creators: name: Andrews, Jeff J.
name: Kalogera, Vicky
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Multiple pieces of evidence suggest that neutron stars receive large kicks when formed from the remnant of a collapsing star. However, the evidence for whether black holes (BH) receive natal kicks is less clear, reliant on weak constraints from the analysis of BH X-ray binaries and massive runaway and walkaway stars. Here we show for the first time that recent microlensing detections offer a new method for measuring the kicks BHs receive at birth. When a BH is identified through both photometric and astrometric microlensing and when the lensed star has a known distance and proper motion, the mass, distance and proper motion of the BH can be determined. We study the runaway velocities for components of eccentric binaries disrupted during a supernova, finding the peculiar velocity correlates strongly with the kick a BH received a birth, typically within 20\%, even when the natal kick is smaller than the orbital velocity. Therefore, by measuring the peculiar velocity of a BH or other compact object that formed from a binary that disrupted during core collapse, we are in effect measuring the natal kick that object received. We focus on MOA-2011-BLG-191/OGLE-2011-BLG-0462, an isolated, single BH detected by microlensing and consider a range of possible formation scenarios, including its formation from the disruption of a binary during a supernova event. We determine that MOA-2011-BLG-191/OGLE-2011-BLG-0462 has a Milky Way orbit consistent with a thick disk population, but if it were formed within the kinematic thin disk it received a natal kick $\lesssim$100 km s$^{-1}$.
description: 14 pages, 8 figures, accepted for publication in ApJ
Фазовая структура в сновидении и изменённых состояниях
Creators: name: Басаргин, Олег Сергеевич
Publisher: name: Zenodo
Year: 2025

description: Сновидение, гипнагогия, гипнопомпия и другие изменённые состояния сознания отличаются не просто содержанием, а фазовой организацией восприятия и временного потока. Предлагается рассматривать эти состояния как движение по виткам Сфирали, в которой S-петля играет роль топологического перехода между модусами субъективности.
title: High-Level synthesis of hardware accelerated 3D image segmentation based on Otsu's method
Creators: name: Robinson, Fraser
Publisher: name: University of Strathclyde
Year: 2016
Subjects: hardware acceleration
segmentation
medical image
FPGA

description: Dataset used to create hardware implementation of 3D image segmentation algorithm utilising a mean filter and thresholds generated using Otsu's method. The implementation was created using Xilinx' SDSoC development environment software and tested on hardware using the ZedBoard. This data formed the basis of a conference paper presented at the 26th International Conference on Field Programmable Logic and Applications (FPL 2016). Further details of the data contained in this dataset are given in the README.txt file.
Modified Poisson-Boltzmann equations and macroscopic forces in inhomogeneous ionic fluids
Creators: name: Budkov, Yu. A.
name: Kolesnikov, A. L.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We propose a field-theoretical approach based on the thermodynamic perturbation theory and within it derive a grand thermodynamic potential of the inhomogeneous ionic fluid as a functional of electrostatic potential for an arbitrary reference fluid system. We obtain a modified Poisson-Boltzmann equation as the Euler-Lagrange equation for the obtained functional. Applying Noether's theorem to this functional, we derive a general mean-field expression for the stress tensor consistent with the respective modified Poisson-Boltzmann equation. We derive a general expression for the macroscopic force acting on the dielectric or conductive body immersed in an ionic fluid. In particular, we derive a general mean-field expression for the disjoining pressure of an ionic fluid in a slit pore. We apply the developed formalism to describe three ionic fluid models of practical importance: nonpolarizable models (including the well-known Poisson-Boltzmann and Poisson-Fermi equations), polarizable models (ions carry nonzero permanent dipole or static polarizability), and models of ion-dipole mixtures (including the well-known Poisson-Boltzmann-Langevin equation). For these models, we obtain modified Poisson-Boltzmann equations and respective stress tensors, which could be valuable for different applications, where it is necessary to estimate the macroscopic forces acting on the dielectric or conductive bodies (electrodes, colloids, membranes, {\it etc}.) together with the local electrostatic potential (field) and ionic concentrations.
Gas Disk Sizes from CO Line Observations: A Test of Angular Momentum Evolution
Creators: name: Long, Feng
name: Andrews, Sean M.
name: Rosotti, Giovanni
name: Harsono, Daniel
name: Pinilla, Paola
name: Wilner, David J.
name: Öberg, Karin I
name: Teague, Richard
name: Trapman, Leon
name: Tabone, Benoît
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The size of a disk encodes important information about its evolution. Combining new Submillimeter Array (SMA) observations with archival Atacama Large Millimeter Array (ALMA) data, we analyze mm continuum and CO emission line sizes for a sample of 44 protoplanetary disks around stars with masses of 0.15--2\,$M_{\odot}$ in several nearby star-forming regions. Sizes measured from $^{12}$CO line emission span from 50 to 1000\,au. This range could be explained by viscous evolution models with different $α$ values (mostly of $10^{-4}-10^{-3}$) and/or a spread of initial conditions. The CO sizes for most disks are also consistent with MHD wind models that directly remove disk angular momentum, but very large initial disk sizes would be required to account for the very extended CO disks in the sample. As no CO size evolution is observed across stellar ages of 0.5--20\,Myr in this sample, determining the dominant mechanism of disk evolution will require a more complete sample for both younger and more evolved systems. We find that the CO emission is universally more extended than the continuum emission by an average factor of $2.9\pm1.2$. The ratio of the CO to continuum sizes does not show any trend with stellar mass, mm continuum luminosity, or the properties of substructures. The GO Tau disk has the most extended CO emission in this sample, with an extreme CO to continuum size ratio of 7.6. Seven additional disks in the sample show high size ratios ($\gtrsim4$) that we interpret as clear signs of substantial radial drift.
description: Accepted for publication in ApJ
Formation of Two-Ion Crystals by Injection from a Paul-Trap Source into a High-Magnetic-Field Penning Trap
Creators: name: Berrocal, Joaquín
name: Altozano, Emilio
name: Domínguez, Francisco
name: Gutiérrez, Manuel Jesús
name: Cerrillo, Javier
name: Fernández, Francisco Javier
name: Block, Michael
name: Ospelkaus, Christian
name: Rodríguez, Daniel
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Two-ion crystals constitute a platform for investigations of quantum nature that can be extended to any ion species or charged particle provided one of the ions in the crystal can be directly laser-cooled and manipulated with laser radiation. This paper presents the formation of two-ion crystals for quantum metrology in a 7-tesla open-ring Penning trap. $^{40}$Ca$^+$ ions are produced either internally by photoionization or externally in a (Paul-trap) source, transported through the strong magnetic field gradient of the superconducting solenoid, and captured in-flight with a mean kinetic energy of a few electronvolts with respect to the minimum of the Penning-trap potential well. Laser cooling of the two-ion crystal in a strong magnetic field towards reaching the quantum regime is also presented with particular emphasis on the cooling of the radial modes.
Wireless Real-Time Capacitance Readout Based on Perturbed Nonlinear Parity-Time Symmetry
Creators: name: Yin, Ke
name: Huang, Yuangen
name: Ma, Chao
name: Hao, Xianglin
name: Gao, Xiaoke
name: Ma, Xikui
name: Dong, Tianyu
Publisher: name: arXiv
Year: 2022
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: In this article, we report a vector-network-analyzer-free and real-time LC wireless capacitance readout system based on perturbed nonlinear parity-time (PT) symmetry. The system is composed of two inductively coupled reader-sensor parallel RLC resonators with gain and loss respectively. By searching for the real mode that requires the minimum saturation gain, the steady-state frequency evolution as a function of the sensor capacitance perturbation is analytically deduced. The proposed system can work in different modes by setting different perturbation point. In particular, at the exceptional point of PT symmetry, the system exhibits high sensitivity. Experimental demonstrations revealed the viability of the proposed readout mechanism by measuring the steady-state frequency of the reader resonator in response to the change of trimmer capacitor on the sensor side. Our findings could impact many emerging applications such as implantable medical device for health monitoring, parameter detection in harsh environment and sealed food packages, etc.
Where Does Metadata End, and the Graph Begin?
Creators: name: Hugo, Wim
Publisher: name: Zenodo
Year: 2022

description: Metadata schemata are either general-purpose, or focused on domain- or format-specific description. It is not very common to find true hybrid schemata. Some schema provide profiles that accommodate additional format- or domain-specific elements - often as extended keywords.

This presents a problem in respect of mapping between schemata, since no single schema is able to accommodate all the elements from all schemata - especially of they are domain- or format-specific.

One solution to this problem is to ‘ignore’ the elements that are difficult to map, by including them in a target schema as ‘unmapped’ snippets with a meaningful label. In this way, the schematic aspect is not explicitly solved but the text snippet remains available for indexing against a controlled vocabulary.

Conceptually, this solution is similar to the one provided by NOSQL databases: allowing flexible and non-schematic extensions of arbitrary data structures to be stored as large text-based snippets. These can be indexed, preferably using an external vocabulary matching the original schema requirements, and can be processed for lexical relationships.

There are a set of common elements across most schemata that can be thought of as ‘core’ or ‘fundamental’. These elements are broadly similar to the elements contained in Dublin Core and DataCite schema.
SDSS-IV MaNGA: Exploring the local scaling relations for N/O
Creators: name: Schaefer, Adam L.
name: Tremonti, Christy
name: Kauffmann, Guinevere
name: Andrews, Brett H.
name: Bershady, Matthew A.
name: Boardman, Nicholas F.
name: Bundy, Kevin
name: Drory, Niv
name: Fernández-Trincado, José G.
name: Preece, Holly P.
name: Riffel, Rogério
name: Riffel, Rogemar A.
name: Sánchez, Sebastián F.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present, for the first time, the relationship between local stellar mass surface density, $\mathrm{Σ_{*}}$, and N/O derived from SDSS-IV MaNGA data, using a sample of $792765$ high signal-to-noise ratio star-forming spaxels. Using a combination of phenomenological modelling and partial correlation analysis, we find that $\mathrm{Σ_{*}}$ alone is insufficient to predict the N/O in MaNGA spaxels, and that there is an additional dependence on the local star formation rate surface density, $\mathrm{Σ_{SFR}}$. This effect is a factor of $3$ stronger than the dependence of 12+log(O/H) on $\mathrm{Σ_{SFR}}$. Surprisingly, we find that the local N/O scaling relations also depend on the total galaxy stellar mass at fixed $Σ_{*}$ as well as the galaxy size at fixed stellar mass. We find that more compact galaxies are more nitrogen rich, even when $\mathrm{Σ_{*}}$ and $\mathrm{Σ_{SFR}}$ are controlled for. We show that $\sim50\%$ of the variance of N/O is explained by the total stellar mass and size. Thus, the evolution of nitrogen in galaxies is set by more than just local effects and does not simply track the build up of oxygen in galaxies. The precise form of the N/O-O/H relation is therefore sensitive to the sample of galaxies from which it is derived. This result casts doubt on the universal applicability of nitrogen-based strong-line metallicity indicators derived in the local universe.
description: 22 pages, 14 figures. Accepted for publication in the Astrophysical Journal
A Multi-Planet System's Sole Super-Puff: Exploring Allowable Physical Parameters for the Cold Super-Puff HIP 41378 f
Creators: name: Belkovski, Michelle
name: Becker, Juliette
name: Howe, Alex
name: Malsky, Isaac
name: Batygin, Konstantin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The census of known exoplanets exhibits a variety of physical parameters, including densities that are measured to span the range from less dense than styrofoam to more dense than iron. These densities represent a large diversity of interior structures. Despite this staggering diversity, recent analyses have shown that the densities of planets that orbit a common star exhibit remarkable uniformity. A fascinating exception to this is the system HIP 41378 (also known as K2-93), which contains a super-puff planet, HIP 41378 f, as well as several planets with more typical bulk densities. The range of densities in this system begs the question of what physical processes are responsible for the disparate planetary structures in this system. In this paper, we consider how the densities of the planets in the HIP 41378 system would have changed over time as the host star evolved and the planets' atmospheres were subsequently affected by the evolving insolation level. We also present a range of allowable core masses for HIP 41378 f based on the measured planet parameters, and comment on the feasibility of the proposed existence of planetary rings around HIP 41378 f as an explanation for its current low density.
description: Accepted to The Astronomical Journal
Supplementary document for Experimental quantum natural gradient optimization in photonics - 6467899.pdf
Creators: name: Wang, Yizhi
name: xue, shichuan
name: Wang, Yaxuan
name: Ding, Jiangfang
name: Shi, Weixu
name: Wang, Dongyang
name: Liu, Yong
name: Liu, Yingwen
name: Fu, Xiang
name: Huang, Guangyao
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Uncategorized

description: Revised Supplemental Document
A Gaia view on the star formation in the Monoceros OB1 and R1 associations
Creators: name: Lim, Beomdu
name: Naze, Yael
name: Hong, Jongsuk
name: Yoon, Sung-yong
name: Lee, Jinhee
name: Hwang, Narae
name: Park, Byeong-Gon
name: Lee, Jeong-Eun
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Stellar kinematics provides the key to understanding star formation process. In this respect, we present a kinematic study of the Monoceros OB1 (Mon OB1) and R1 (Mon R1) associations using the recent Gaia data and radial velocities of stars derived from high-resolution spectroscopy and the literature. A total of 728 members are selected using the criteria based on the intrinsic properties of young stars, parallaxes, and proper motions. The spatial distribution and kinematic properties of members show that these associations have distinct substructures. In Mon OB1, we find one northern group and two southern groups. Mon R1 is composed of three small stellar groups that are spatially and kinematically distinct. Some stars are found in a halo around these two associations. We detect patterns of expansion for most stellar groups in the associations. In addition, two stellar groups in Mon OB1 show the signature of rotation, which provides an important constraint on cluster formation. The star formation history of Mon OB1 is slightly revised. Star formation first occurred in the southern region and subsequently in the northern region. Recent star-forming events ignited deeper into the southern region, while some stars are escaping from Mon OB1, forming a halo. Mon R1 might have formed at the same epoch as the formation of the northern group in Mon OB1. Given that star formation is taking place on different scales along a large arc-like structure, Mon OB1 and Mon R1 may be the results of hierarchical star formation.
description: 18 pages, 16 figures, accepted for publication in AJ
Convert widespread paraelectric perovskite to ferroelectrics
Creators: name: Wang, Hongwei
name: Tang, Fujie
name: Stengel, Massimiliano
name: Xiang, Hongjun
name: An, Qi
name: Low, Tony
name: Wu, Xifan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: While nature provides a plethora of perovskite materials, only a few exhibits large ferroelectricity and possibly multiferroicity. The majority of perovskite materials have the non-polar CaTiO$_3$(CTO)structure, limiting the scope of their applications. Based on effective Hamiltonian model as well as first-principles calculations, we propose a general thin-film design method to stabilize the functional BiFeO$_3$(BFO)-type structure, which is a common metastable structure in widespread CaTiO$_3$-type perovskite oxides. It is found that the improper antiferroelectricity in CTO-type perovskite and ferroelectricity in BFO-type perovskite have distinct dependences on mechanical and electric boundary conditions, both of which involve oxygen octahedral rotation and tilt. The above difference can be used to stabilize the highly polar BFO-type structure in many CTO-type perovskite materials.
The influence of self-construal and social support on the adjustment outcomes of ethnically diverse American college students
Creators: name: Minnaar, Pauline Y.
Publisher: name: Maryland Shared Open Access Repository
Year: 2016

description: (M.A.) -- Towson University, 2016
description: In this study we used a multimethod approach to examine how three types of self-construal (independent, interdependent, and relational-interdependent) play a role in the adjustment outcomes of American college students. Participants were 131 students from five ethnic backgrounds (African American, Asian American, Caucasian, Latino/a, and Biracial/Mixed) primarily in their first semester of college. Consistent with previous research, the results indicated that the independent self-construal was directly linked to less distress and greater overall adjustment. In addition, we found an indirect relationship between relational-interdependence and college adaptation through the mediators of social support and peer attachment. Results from both the quantitative and qualitative analyses indicated that the Asian American participants were doing poorly in their college transition. Implications for students, higher education professionals, and college campuses in general are discussed.
description: http://library.towson.edu/cdm/ref/collection/etd/id/50766
Simultaneous evidence of edge collapse and hub-filament configurations: A rare case study of a Giant Molecular Filament G45.3+0.1
Creators: name: Bhadari, N. K.
name: Dewangan, L. K.
name: Ojha, D. K.
name: Pirogov, L. E.
name: Maity, A. K.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We study multiwavelength and multiscale data to investigate the kinematics of molecular gas associated with the star-forming complexes G045.49+00.04 (G45E) and G045.14+00.14 (G45W) in the Aquila constellation. An analysis of the FUGIN $^{13}$CO(1-0) line data unveils the presence of a giant molecular filament (GMF G45.3+0.1; length $\sim$75 pc, mass $\sim$1.1$\times$10$^{6}$ M$_{\odot}$) having a coherent velocity structure at [53, 63] km s$^{-1}$. The GMF G45.3+0.1 hosts G45E and G45W complexes at its opposite ends. We find large scale velocity oscillations along GMF G45.3+0.1, which also reveals the linear velocity gradients of $-$0.064 and $+$0.032 km s$^{-1}$ pc$^{-1}$ at its edges. The photometric analysis of point-like sources shows the clustering of young stellar object (YSO) candidate sources at the filament's edges where the presence of dense gas and HII regions are also spatially observed. The Herschel continuum maps along with the CHIMPS $^{13}$CO(3-2) line data unravel the presence of parsec scale hub-filament systems (HFSs) in both the sites, G45E and G45W. Our study suggests that the global collapse of GMF G45.3+0.1 is end-dominated, with addition to the signature of global nonisotropic collapse (GNIC) at the edges. Overall, GMF G45.3+0.1 is the first observational sample of filament where the edge collapse and the hub-filament configurations are simultaneously investigated. These observations open up the new possibility of massive star formation, including the formation of HFSs.
description: 23 pages, 12 figures, 1 table, Accepted for publication in The Astrophysical Journal
Nuevo romance, en que se refieren los portentosos lances que le sucedieron al Capitán Don Carlos: Digital Edition
Creators: name: Jacsont Pauline
Publisher: name: Zenodo
Year: 2024
Subjects: Spanish literature
Digital edition
XML-TEI

description: Digital edition of a Spanish pliego de cordel (19th c.). It contains the XML-TEI file of the edition, as well as the files that led to this edition, i.e. the digital facsimiles (raw and retouched), and the transcription produced by the OCR tool eScriptorium (ALTO-XML). This digital edition is a part of the research project Desenrollando el cordel / Untangling the cordel / Démêler le cordel (2020-2024), led by professor Constance Carta at the University of Geneva and supported by the philanthropic Sandoz-Monique de Meuron Family Foundation.
First muon acceleration and muon linear accelerator for measuring the muon anomalous magnetic moment and electric dipole moment
Creators: name: Otani, M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Muon acceleration using a radio-frequency accelerator was recently demonstrated for the first time. Measurement of the muon anomalous magnetic moment and electric dipole moment at Japan Proton Accelerator Research Complex is the first experiment using accelerated muon beams, and construction will begin soon. The radio-frequency accelerator used in the experiment and the first muon acceleration are described in this paper.
Physical Properties of the Supernova Remnant Population in the Small Magellanic Cloud
Creators: name: Leahy, D. A.
name: Filipovic, M. D.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The X-ray emission from a supernova remnant is a powerful diagnostic of the state of its shocked plasma. The temperature and the emission measure are related to the energy of the explosion, the age of the remnant, and the density of the surrounding medium. Here we present the results of a study of the remnant population of the Small Magellanic Cloud. Progress in X-ray observations of remnants has resulted in a sample of 20 remnants in the Small Magellanic Clound with measured temperatures and emission measures. We apply spherically symmetric supernova remnant evolution models to this set of remnants, to estimate ages, explosion energies, and circumstellar medium densities. The distribution of ages yields a remnant birthrate of $\sim$1/1200 yr. The energies and densities are well fit with log-normal distributions, with means of 1.6$\times10^{51}$ erg and 0.14 cm$^{-3}$, and 1$σ$ dispersions of a factor of 1.87 in energy and 3.06 in density, respectively.
description: 23 pages, 5 figures, accepted for publication in The Astrophysical Journal
Disk Evolution Study Through Imaging of Nearby Young Stars (DESTINYS): A Panchromatic View of DO Tau's Complex Kilo-au Environment
Creators: name: Huang, Jane
name: Ginski, Christian
name: Benisty, Myriam
name: Ren, Bin
name: Bohn, Alexander J.
name: Choquet, Élodie
name: Öberg, Karin I.
name: Ribas, Álvaro
name: Bae, Jaehan
name: Bergin, Edwin A.
name: Birnstiel, Til
name: Boehler, Yann
name: Facchini, Stefano
name: Harsono, Daniel
name: Hogerheijde, Michiel
name: Long, Feng
name: Manara, Carlo F.
name: Ménard, François
name: Pinilla, Paola
name: Pinte, Christophe
name: Rab, Christian
name: Williams, Jonathan P.
name: Zurlo, Alice
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: While protoplanetary disks are often treated as isolated systems in planet formation models, observations increasingly suggest that vigorous interactions between Class II disks and their environments are not rare. DO Tau is a T Tauri star that has previously been hypothesized to have undergone a close encounter with the HV Tau system. As part of the DESTINYS ESO Large Programme, we present new VLT/SPHERE polarimetric observations of DO Tau and combine them with archival HST scattered light images and ALMA observations of CO isotopologues and CS to map a network of complex structures. The SPHERE and ALMA observations show that the circumstellar disk is connected to arms extending out to several hundred au. HST and ALMA also reveal stream-like structures northeast of DO Tau, some of which are at least several thousand au long. These streams appear not to be gravitationally bound to DO Tau, and comparisons with previous Herschel far-IR observations suggest that the streams are part of a bridge-like structure connecting DO Tau and HV Tau. We also detect a fainter redshifted counterpart to a previously known blueshifted CO outflow. While some of DO Tau's complex structures could be attributed to a recent disk-disk encounter, they might be explained alternatively by interactions with remnant material from the star formation process. These panchromatic observations of DO Tau highlight the need to contextualize the evolution of Class II disks by examining processes occurring over a wide range of size scales.
description: 42 pages, 20 figures, accepted by ApJ, reduced data available at https://zenodo.org/record/6408903 (typos from v1 fixed)
Phase dynamics of noise-induced coherent oscillations in excitable systems
Creators: name: Zhu, Jinjie
name: Kato, Yuzuru
name: Nakao, Hiroya
Publisher: name: arXiv
Year: 2022
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences

description: Noise can induce coherent oscillations in excitable systems without periodic orbits. Here, we establish a method to derive a hybrid system approximating the noise-induced coherent oscillations in excitable systems and further perform phase reduction of the hybrid system to derive an effective, dimensionality-reduced phase equation. We apply the reduced phase model to a periodically forced excitable system and two-coupled excitable systems, both undergoing noise-induced oscillations. The reduced phase model can quantitatively predict the entrainment of a single system to the periodic force and the mutual synchronization of two coupled systems, including the phase slipping behavior due to noise, as verified by Monte Carlo simulations. The derived phase model gives a simple and efficient description of noise-induced oscillations and can be applied to the analysis of more general cases.
Preserving Nigerian Cultural Heritage Using IGSNs and Repositories In Nigerian Museums
Creators: name: Iyoha, Owen
Publisher: name: DataCite
Year: 2025
Subjects: Persistent Identifiers
Metadata
IGSN IDs
Cultural Heritage
Museums
Indigenous Knowledge
Global Access Fund 2024
Eco-Konnect
Nigeria

description: DataCite supports communities worldwide in making research openly available and connected so that their reuse can advance knowledge. We enable the creation and management of persistent identifiers, integrate services to improve research workflows, and facilitate the discovery and reuse of research outputs and resources.

Join this session featuring Global Access Fund awardees to learn how organizations use our infrastructure and services to improve research workflows across the world. From leading the establishment of a DataCite Consortium, to building a data repository specializing in motion capture (mocap) data and digitizing museum collections to promote indigenous knowledge, DataCite open infrastructure can serve a diverse range of communities and their needs.

Speaker: Owen Iyoha, Eko-Konnect, NigeriaA recording of the presentation can be found here: https://www.youtube.com/watch?v=m08IaXHCS7k&t=2543s
Global Mapping of Surface Composition on an Exo-Earth Using Sparse Modeling
Creators: name: Kuwata, Atsuki
name: Kawahara, Hajime
name: Aizawa, Masataka
name: Kotani, Takayuki
name: Tamura, Motohide
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The time series of light reflected from exoplanets by future direct imaging can provide spatial information with respect to the planetary surface. We apply sparse modeling to the retrieval method that disentangles the spatial and spectral information from multi-band reflected light curves termed as spin-orbit unmixing. We use the $\ell_1$-norm and the Total Squared Variation norm as regularization terms for the surface distribution. Applying our technique to a toy model of cloudless Earth, we show that our method can infer sparse and continuous surface distributions and also unmixed spectra without prior knowledge of the planet surface. We also apply the technique to the real Earth data as observed by DSCOVR/EPIC. We determined the representative components that can be interpreted as cloud and ocean. Additionally, we found two components that resembled the distribution of land. One of the components captures the Sahara Desert, and the other roughly corresponds to vegetation although their spectra are still contaminated by clouds. Sparse modeling significantly improves the geographic retrieval, in particular, of cloud and leads to higher resolutions for other components when compared with spin-orbit unmixing using Tikhonov regularization.
description: 26 pages, 10 figures, accepted for publication in ApJ
Reverse shock forming condition for magnetized relativistic outflows: reconciling theories and simulations
Creators: name: Ma, Jing-Ze
name: Zhang, Bing
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Reverse shock (RS) emission can be used to probe the properties of the relativistic ejecta, especially the degree of magnetization $σ$, in gamma-ray burst (GRB) afterglows. However, there has been confusion in the literature regarding the physical condition for the RS formation, and the role of magnetic fields in the RS dynamics in the Poynting-flux-dominated regime is not fully understood. Exploiting the shock jump conditions, we characterize the properties of a magnetized RS. We compare the RS dynamics and forming conditions from different theories and numerical simulations, and reconcile the discrepancies among them. The strict RS forming condition is found to be $σ< σ_\mathrm{cr}=(8/3)γ_4^2(n_1/n_4)$, where $n_4$ and $n_1$ are the rest-frame number densities of the ejecta and the ambient medium, respectively, $γ_4$ is the bulk Lorentz factor, and $σ_\mathrm{cr}$ is the critical magnetization. Contrary to previous claims, we prove that this condition agrees with other theoretical and simulated results, which can be further applied to the setup and consistency check of future numerical simulations. Using this condition, we propose a characteristic radius for RS formation, and categorize the magnetized shell into three regimes: 'thick shell' (relativistic RS), 'thin shell' (trans-relativistic RS), and 'no RS' regimes. The critical magnetization $σ_\mathrm{cr}$ is generally below unity for thin shells, but can potentially reaches $\sim 100-1000$ in the 'thick shell' regime. Our results could be applied to the dynamical evolution of Poynting-flux-dominated ejecta, with potential applications to self-consistent lightcurve modelling of magnetized relativistic outflows.
description: 12 pages, 2 figures, accepted for publication in MNRAS. Comments welcome
Pyrolysis of agricultural residues in the local area of Nakhon Pathom Province
Creators: name: Orathai Wongsawiang
name: Maleewan Unpipat
name: Chonticha Chareannate
name: Ekrachan Chaichana
Publisher: name: Nakhon Pathom Rajabhat University
Year: 2559
Subjects: pyrolysis, agricultural residues, bio-oil

description: Journal of Thai Interdisciplinary Research, Vol.11, No.3
Outcomes and sustainability of  community participation in elderly health promotion
Creators: name: Churairat Duangchan
name: Sathapon Taeochantuek
name: Achara Suksamran
Publisher: name: Nakhon Pathom Rajabhat University
Year: 2559
Subjects: health promotion, elderly, community participation, sustainability

description: Journal of Thai Interdisciplinary Research, Vol.11, No.3
Integrability of supersymmetric Calogero-Moser models
Creators: name: Krivonos, Sergey
name: Lechtenfeld, Olaf
name: Sutulin, Anton
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We analyze the integrability of the ${\cal N}$-extended supersymmetric Calogero-Moser model. We explicitly construct the Lax pair $\{L,A\}$ for this system, which properly reproduces all equations of motion. After adding a supersymmetric oscillator potential we reduce the latter to solving $\dot{U}\,{=}\,A\,U$ for the time evolution operator $U(t)$. The bosonic variables, however, evolve independently of $U$ on closed trajectories, as is required for superintegrability. To visualize the structure of the conserved currents we derive the complete set of Liouville charges up to the fifth power in the momenta, for the ${\cal N}{=}\,2$ supersymmetric model. The additional, non-involutive, conserved charges needed for a maximal superintegrability of this model are also found.
description: 1+7 pages, no figures; v2: small extensions and 4 refs. added, matches published version
Use of Carboxymethyl Cellulose to improve quality of bread made from Palmyra Plam Fruit Pulp instead of wheat flour
Creators: name: Waralak Panyathitipong
name: Chutamas Peeraphatchara
Publisher: name: Nakhon Pathom Rajabhat University
Year: 2559
Subjects: Palmyra Plam, bakery, bread hydrocolloid

description: Journal of Thai Interdisciplinary Research, Vol.11, No.3
The development of game prototype as an educational supplementary tool to enhance student's English skill: a case study of grade 1 to grade 3 students
Creators: name: Patravadee Vongsumedh
Publisher: name: Nakhon Pathom Rajabhat University
Year: 2559
Subjects: educational supplementary tool, educational game, game for primary school's student

description: Journal of Thai Interdisciplinary Research, Vol.11, No.3
Increase student achievement of students in third grade by teaching media with the application of local wisdom on geographical maps and the content offered through augmented reality
Creators: name: Ubonrat Sirisukpoca
name: Paisan Simalaotao
Publisher: name: Nakhon Pathom Rajabhat University
Year: 2559
Subjects: teaching participatory media, local wisdom, geographical maps, augmented reality

description: Journal of Thai Interdisciplinary Research, Vol.11, No.3
Study of the physical and optical properties of Holmium Ion doped soda lime silicate glasses
Creators: name: K. Kirdsiri
name: L. Shamshad
name: N. Srisittipokakun
name: G. Rooh
name: J. Kaewkhao
Publisher: name: Nakhon Pathom Rajabhat University
Year: 2559
Subjects: density, refractive index, molar volume, absorption, glasses

description: Journal of Thai Interdisciplinary Research, Vol.11, No.3
Thesis on Impact of Mobile Technology on Adventure Tourism in Nepal  using weather Analysis and Route Optimization
Creators: name: Gautam, Samyog
Publisher: name: Zenodo
Year: 2024

description: Thesis Title: Impact of Mobile Technology on Adventure Tourism in Nepal: Using Weather Analysis and Route Optimization

This research project explores the integration of mobile technology in Nepal's adventure tourism industry, focusing on enhancing safety and efficiency. By leveraging real-time weather data analysis and advanced route optimization techniques, the study aims to provide tourists and operators with better tools for decision-making, thereby improving overall adventure tourism experiences in Nepal. The findings suggest that mobile tech can significantly enhance safety measures and operational efficiency, providing a smarter way to manage tourism activities in remote regions of Nepal.
Heavy-Flavor-Conserving Hadronic Weak Decays of Charmed and Bottom Baryons
Creators: name: Cheng, Hai-Yang
name: Xu, Fanrong
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Three decades ago, heavy-flavor-conserving (HFC) weak decays of heavy baryons such as $Ξ_Q\toΛ_Qπ$ and $Ω_Q\toΞ_Qπ$ for $Q=c,b$ had been studied within the framework that incorporates both heavy-quark and chiral symmetries. It was pointed out that if the heavy quark in the HFC process behaves as a spectator, then the $P$-wave amplitude of ${\cal B}_{\bar 3}\to {\cal B}_{\bar 3}+π$ with ${\cal B}_{\bar 3}$ being an antitriplet heavy baryon will vanish in the heavy quark limit. Indeed, this is the case for $Ξ_b\toΛ_b π$ decays. For $Ξ_c\toΛ_cπ$ decays, they receive additional nonspectator contributions arising from the $W$-exchange diagrams through the $cs\to dc$ transition. Spectator and nonspectator $W$-exchange contributions to the $S$-wave amplitude of $Ξ_c\toΛ_cπ$ are destructive, rendering the $S$-wave contribution even smaller. However, the nonspectator effect on the $P$-wave amplitude was overlooked in all the previous model calculations until a very recent investigation within the framework of a constituent quark model in which the parity-conserving pole terms were found to be dominant in $Ξ_c\toΛ_cπ$ decays. Since the pion produced in the HFC process is soft, we apply current algebra to study both $S$- and $P$-wave amplitudes and employ the bag and diquark models to estimate the matrix elements of four-quark operators. We confirm that $Ξ_c\toΛ_cπ$ decays are indeed dominated by the parity-conserving transition induced from nonspectator $W$-exchange and that they receive largest contributions from the intermediate $Σ_c$ pole terms. We also show that the $S$-wave of $Ω_b\to Ξ_b π$ decays vanishes in the heavy quark limit, while $Ω_c\to Ξ_cπ$ receive additional $W$-exchange contributions via $cs\to dc$ transition.
description: 18 pages, 5 figures, typos corrected, accepted by PRD
A Coronagraph with a Sub-$λ/D$ IWA and a Moderate Spectral Bandwidth
Creators: name: Itoh, Satoshi
name: Matsuo, Taro
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Future high-contrast imaging spectroscopy with a large segmented telescope will be able to detect atmospheric molecules of Earth-like planets around G- or K-type main-sequence stars. Increasing the number of target planets will require a coronagraph with a small inner working angle (IWA), and wide spectral bandwidth is required if we enhance a variety of detectable atmospheric molecules. To satisfy these requirements, in this paper, we present a coronagraphic system that provides an IWA less than 1$λ_0 / D$ over a moderate wavelength band, where $λ_0$ is the design-center wavelength and $D$ denotes the full width of the rectangular aperture included in the telescope aperture. A performance simulation shows that the proposed system approximately achieves a contrast below $10^{-10}$ at 1$λ_0 / D$ over the wavelengths of 650--750nm. In addition, this system has a core throughput $\geq$ 10\% at input separation angles of $\sim$ 0.7--1.4$λ_0 / D$; to reduce telescope time, we need prior information on the target's orbit by other observational methods to a precision higher than the width of the field of view. For some types of aberration including tilt aberration, the proposed system has a sensitivity less than ever-proposed coronagraphs that have IWAs of approximately $1λ_0/D$. In future observations of Earth-like planets, the proposed coronagraphic system may serve as a supplementary coronagraphic system dedicated to achieving an extremely small IWA.
description: Accepted for publication in the Astronomical Journal
The Eel Pulsar Wind Nebula: a PeVatron-Candidate Origin for HAWC J1826-128 and HESS J1826-130
Creators: name: Burgess, Daniel A.
name: Mori, Kaya
name: Gelfand, Joseph D.
name: Hailey, Charles J.
name: Tokayer, Yarone M.
name: Woo, Jooyun
name: An, Hongjun
name: Malone, Kelly
name: Reynolds, Stephen P.
name: Safi-Harb, Samar
name: Temim, Tea
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: HAWC J1826-128 is one of the brightest Galactic TeV gamma-ray sources detected by the High Altitude Water Cherenkov (HAWC) Observatory, with photon energies extending up to nearly $\sim$100 TeV. This HAWC source spatially coincides with the H.E.S.S. TeV source HESS J1826-130 and the "Eel" pulsar wind nebula (PWN), which is associated with the GeV pulsar PSR J1826-1256. In the X-ray band, Chandra and XMM-Newton revealed that the Eel PWN is composed of both a compact nebula ($\sim$15") and diffuse X-ray emission ($\sim$6'$\times$2') extending away from the pulsar. Our NuSTAR observation detected hard X-ray emission from the compact PWN up to $\sim$20 keV and evidence of the synchrotron burn-off effect. In addition to the spatial coincidence between HESS J1826-130 and the diffuse X-ray PWN, our multi-wavelength spectral energy distribution (SED) analysis using X-ray and gamma-ray data establishes a leptonic origin of the TeV emission associated with the Eel PWN. Furthermore, our evolutionary PWN SED model suggests (1) a low PWN B-field of $\sim$1 $μ$G, (2) a significantly younger pulsar age ($t \sim5.7$ kyr) than the characteristic age ($τ= 14.4$ kyr) and (3) a maximum electron energy of $E_{max} = 2$ PeV. The low B-field as well as the putative supersonic motion of the pulsar may account for the asymmetric morphology of the diffuse X-ray emission. Our results suggest that the Eel PWN may be a leptonic PeVatron particle accelerator powered by the $\sim$6-kyr-old pulsar PSR J1826-1256 with a spin-down power of $3.6 \times 10^{36}$ erg s$^{-1}$.
description: 19 pages, 12 figures
On the equilateral pentagonal central configurations
Creators: name: Alvarez-Ramírez, Martha
name: Gasull, Armengol
name: Llibre, Jaume
Publisher: name: arXiv
Year: 2022
Subjects: subject: Dynamical Systems (math.DS)
subject: Mathematical Physics (math-ph)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 70F10, 37N05, 70F15

description: An equilateral pentagon is a polygon in the plane with five sides of equal length. In this paper we classify the central configurations of the $5$-body problem having the five bodies at the vertices of an equilateral pentagon with an axis of symmetry. We prove that there are two unique classes of such equilateral pentagons providing central configurations, one concave equilateral pentagon and one convex equilateral pentagon, the regular one. A key point of our proof is the use of rational parameterizations to transform the corresponding equations, which involve square roots, into polynomial equations.