cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The use of an online video library in the development of case-based clinical reasoning skills in occupational therapy education
Creators: name: Murphy, Lynne F.
Publisher: name: Maryland Shared Open Access Repository
Year: 2016

description: (Ed. D.) -- Towson University, 2016
description: Clinical reasoning, the cognitive process of a skilled occupational therapist, is a complex and necessary component of evaluating clients and implementing interventions that facilitate each client’s achievement of relevant and meaningful participation in daily occupations. Clinical reasoning encompasses a set of skills that must be integrated into college curricula for the preparation of occupational therapists, but it is not easily taught in a classroom setting. This complementary, mixed methods study explored how specific instructional techniques, constructed on the tenants of case-based reasoning, influenced the development of clinical reasoning in occupational therapy students, and sought to understand the student experience regarding use of these instructional techniques. Students participated in either a text based case activity or a video-based case activity with an associated clinical reasoning component. When the effects of GPA, age and experience were partialled out, the video group demonstrated statistically significantly higher scores in inductive reasoning (p
description: http://library.towson.edu/cdm/ref/collection/etd/id/50481
H2CS deuteration maps towards the pre-stellar core L1544
Creators: name: Spezzano, S.
name: Sipilä, O.
name: Caselli, P.
name: Jensen, S. S.
name: Czakli, S.
name: Bizzocchi, L.
name: Chantzos, J.
name: Esplugues, G.
name: Fuente, A.
name: Eisenhauer, F.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Deuteration is a crucial tool to understand the complexity of interstellar chemical processes, especially when they involve the interplay of gas-phase and grain-surface chemistry. In the case of multiple deuteration, comparing observation with the results of chemical modelling is particularly effective to study how molecules are inherited in the different stages within the process of star and planet formation. We aim to study the the D/ H ratio in H2CS across the prototypical pre-stellar core L1544. This study allows us to test current gas-dust chemical models involving sulfur in dense cores. We present here single-dish observations of H2CS, HDCS and D2CS with the IRAM 30m telescope. We analyse their column densities and distributions, and compare these observations with gas-grain chemical models. The deuteration maps of H2CS in L1544 are compared with the deuteration maps of methanol, H2CO, N2H+ and HCO+ towards the same source. Furthermore, the single and double deuteration of H2CS towards the dust peak of L1544 is compared with H2CO and c-C3H2. The difference between the deuteration of these molecules in L1544 is discussed and compared with the prediction of chemical models. The maximum deuterium fractionation for the first deuteration of H2CS is N(HDCS)/N(H2CS)$\sim$30$\%$ and is located towards the north-east at a distance of about 10000 AU from the dust peak. While for c-C3H2 the first and second deuteration have a similar efficiency, for H2CS and H2CO the second deuteration is more efficient, leading to D2CX/HDCX$\sim$100$\%$ (with X= O or S). Our results imply that the large deuteration of H2CO and H2CS observed in protostellar cores as well as in comets is likely inherited from the pre-stellar phase. However, the comparison with state-of-the-art chemical models suggests that the reaction network for the formation of the doubly deuterated H2CS and H2CO it is not complete yet.
description: Accepted for publication in A&A
How does deflator choice and base year preference impact the conversion of nominal to real agricultural prices?
Creators: name: Bird, Lewis
Publisher: name: Unknown
Year: 2024
Subjects: subject: Agribusiness
subject: Agricultural Finance
subject: Demand and Price Analysis
subject: Agricultural prices
subject: deflators
subject: price volatility
subject: base year

description: This discussion paper assesses the impact of deflator choice and base year selection on converting nominal agricultural commodity prices to real prices. Using World Bank Pink Sheet Monthly Prices data from 1960 to 2024 for key commodities including palm oil, soybeans, maize, rice, and wheat, the paper compares three deflators: the US Producer Price Index, Consumer Price Index and US GDP deflator. To ensure consistency, the data is converted from monthly to quarterly frequency to align with the GDP deflator series. Additionally, the paper explores the influence of base year preference by simulating different base years (2019, 2022 and 2023) and assessing their impact on real price calculations. By systematically applying these deflators and base years, the study provides insights into how methodological choices affect real price outcomes and the interpretation of long-term agricultural price trends, especially during periods of economic volatility.
High-power, frequency-quadrupled UV laser source resonant with the $^{1}$S$_{0}$-$^{3}$P$_{1}$ narrow intercombination transition of cadmium at 326.2 nm
Creators: name: Manzoor, S.
name: Tinsley, J. N.
name: Bandarupally, S.
name: Chiarotti, M.
name: Poli, N.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We present a novel high-power, frequency-stabilized UV laser source at 326.2~nm, resonant with the Cd $^{1}$S$_{0}$ - $^{3}$P$_{1}$ narrow intercombination transition. We have achieved a maximum produced power of 1~W at 326.2~nm by two successive frequency doubling stages of a narrow-linewidth (< 1~kHz) seed laser at 1304.8~nm. About 3.4 W of optical power at 652.4 nm is produced by a visible Raman fiber amplifier (VRFA) that amplifies and generates the second harmonic of the infrared radiation. The visible light is subsequently frequency-doubled down to 326.2~nm in a non-linear bow-tie cavity using a Brewster-cut beta-barium-borate (BBO) crystal, with a maximum conversion efficiency of around 40$\%$ for 2.5~W coupled red power. Full characterization of the laser source, together with spectroscopy signals of all Cd isotopes, spanning more than 4 GHz in the UV, are shown.
description: 7 pages, 5 figures
Kepler Pixel Project -- background RR Lyrae stars in the primary Kepler mission field of view
Creators: name: Forró, Adrienn
name: Szabó, Róbert
name: Bódi, Attila
name: Császár, Kornél
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: In this paper we describe a project we initiated to investigate individual pixels in the downloaded Kepler apertures in order to find objects in the background of the main targets with variable brightness. In the first paper of this series we discovered and investigated 547 short-period eclipsing binaries (Bienias et al. 2021). Here we present the independent discovery of 26 new RR Lyrae stars in the Kepler background pixels obtained during the primary mission, and provide continuous and precise photometry for these objects. Twenty-one of these stars were already noted by Gaia or the Pan-STARRS survey. This new population of dominantly faint and distant RR Lyrae stars increases by 50% and complements nicely the 52 already known main target RR Lyrae stars in the original Kepler field. Despite their faintness, the four-year quasi-uninterrupted light curves of these stars allow an unprecedented view of these faint halo objects. We present an analysis of the light curves of the new RR Lyrae sample, verify their classification using Fourier parameters, and discuss the properties of these newly found pulsating variable stars. Most notably, this is the first time that such faint RR Lyrae stars have been investigated with the help of a photometric data set with outstanding cadence and precision. Interestingly, these objects share the properties of their brighter siblings in terms of sub-class characteristics, additional mode content, and modulation occurrence rates.
description: Accepted for publication in ApJS, 18 pages, 11 figures, 2 tables
Simulations of scrape-off layer power width for EAST H-mode plasma and ITER 15 MA baseline scenario by 2D electrostatic turbulence code
Creators: name: Liu, X.
name: Nielsen, A. H.
name: Rasmussen, J. J.
name: Naulin, V.
name: Wang, L.
name: Ding, R.
name: Li, J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The scrape-off layer power width (λ_q) is an important parameter for characterizing the divertor heat loads. Many experimental, theoretical, and numerical studies have been performed in recent years. In this paper, a 2D electrostatic turbulence code, BOUT-HESEL, has been upgraded to simulate H-mode plasmas for the first time. The code is validated against the previous implementation and the experiments. The simulated λ_q is found to agree quite well with the Eich scaling for the EAST H-mode discharge. The code is utilized to simulate the ITER 15MA baseline scenario. The ITER simulation reveals that the radial particle/heat transports are dominated by blobby transports, and predicts λ_{q,ITER} = 9.6 mm, which is much larger than the prediction by the Eich scaling. Based on the EAST modified cases, an estimated HESEL H-mode scaling, λ_q=0.51R_c^1.1B_t^(-0.3)q_95^1.1 is proposed. This scaling predicts λ_{q,ITER} = 9.3 mm, which agrees surprisingly well with that for the ITER case. A further investigation combined with the basic parameters in the database of the Eich scaling shows that the missing positive scaling dependence on the machine size (Rc) in the Eich scaling appears to be shaded by the negative scaling dependence on the toroidal magnetic field (Bt) for current devices. This is however not the case for ITER, explaining why simulations in recent studies and in this paper can reproduce the Eich scaling for current devices, but predict a much larger λ_q for ITER. According to the simulation results, the strong positive scaling dependence of λ_q on Rc is due to a combination of slowing down the parallel heat transports by increasing the parallel connection length and the enhancement of the radial ExB turbulent heat transports when the machine size is increased.
description: 28 pages, 15 figures, 3 tables
Next-to-leading order scalar contributions to $μ\rightarrow e$ conversion
Creators: name: Cirigliano, Vincenzo
name: Fuyuto, Kaori
name: Ramsey-Musolf, Michael J.
name: Rule, Evan
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Within a class of models in which lepton flavor violation is induced dominantly by scalar particle exchanges, we estimate the $μ\to e$ conversion rate in several nuclei. We include next-to-leading order (NLO) terms in the one- and two-nucleon interactions in chiral effective theory, rectifying some incorrect results in the previous literature. We provide an uncertainty budget for the conversion rates and we find that NLO contributions affect the amplitudes at the level of $10\%$, which could be larger than the uncertainty on the leading order couplings, dominated by the strange and non-strange nucleon sigma terms. We study the implications of our results for testing Higgs-mediated CLFV in the future by combining results from various experimental searches, such as $μ\to e$ conversion in multiple target nuclei and $μ\to e γ$.
description: 17 pages, 4 figures
Dual optical frequency combs with ultra-low relative phase jitters from 550 nm to 1020 nm for precision spectroscopy
Creators: name: Chae, Eunmi
name: Nakashima, Kota
name: Yoshioka, Kosuke
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Here, ultra-low relative phase jitters over a wide optical spectrum were achieved for dual Ti:Sapphire optical frequency combs. The two optical frequency combs were independently phase-locked to a Sr optical lattice clock laser delivered through a commercial optical fiber network. We confirmed that the relative phase jitters between the two combs integrated from 8.3 mHz to 200 kHz were below 1 rad, corresponding to a relative linewidth of below 8.3 mHz, over the entire wavelength of the optical frequency combs ranging from 550 nm to 1020 nm. Our work paves the way for ultrahigh-precision dual-comb spectroscopy covering a wide optical spectral range with a simple setup, and provides an absolute optical frequency reference with great stability over a wide range of wavelengths.
Detection of periodic flares in 6.7 GHz methanol masers G45.804-0.356 and G49.043-1.079
Creators: name: Olech, Mateusz
name: Durjasz, Michał
name: Szymczak, Marian
name: Bartkiewicz, Anna
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Context: Periodicity in 6.7 GHz methanol maser sources is a rare phenomenon that was discovered during long-term monitoring programmes. Understanding the underlying processes that lead to periodic variability might provide insights into the physical processes in high-mass star-forming regions. Aims: We aim to identify and describe new periodic methanol masers. Methods: The observations were obtained with the Torun 32m antenna. Time series analysis was conducted using well-proven statistical methods. Additionally, NEOWISE data were used to search for a correlation between infrared and maser fluxes. Results: We found two new periodic sources, G45.804-0.356 and G49.043-1.079, with periods of 416.9 and 469.3 days, respectively. For G49.043-1.079, infrared variability is simultaneous with methanol flares. Conclusions: A most likely cause of the periodicity in G49.043-1.079 is modulated accretion. For G45.804-0.356, the periodicity cannot be explained with the available data, and further research is needed.
description: 8 pages, 5 figures
Investigating the QCD dynamical entropy in high-energy hadronic collisions
Creators: name: Ramos, G. S.
name: Machado, M. V. T.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The dynamical entropy of dense gluonic states in proton-proton collisions at high energies is studied by using phenomenological models for the unintegrated gluon distribution. The corresponding transverse momentum probability distributions are evaluated in terms of rapidity. The dynamical entropy density is obtained in the rapidity range relevant for the collisions at the Large Hadron Collider. The total entropy density for the dense system is computed as a function of the rapidity evolution $ΔY = Y-Y_0$ given an initial rapidity $Y_0$. The theoretical uncertainties are investigated and comparison with related approaches in literature is done.
description: 08 pages, 4 figures
Luminosity Selection for Gamma Ray Burst
Creators: name: Banerjee, Shreya
name: Guetta, Dafne
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: There exists an inevitable scatter in intrinsic luminosity of Gamma Ray Bursts(GRBs). If there is relativistic beaming in the source, viewing angle variation necessarily introduces variation in the intrinsic luminosity function (ILF). Scatter in the ILF can cause a selection bias where distant sources that are detected have a larger median luminosity than those detected close by. Median luminosity divides any given population into equal halves. When the functional form of a distribution is unknown, it can be a more robust diagnostic than any that use trial functional forms. In this work we employ a statistical test based on median luminosity and apply it to test a class of models for GRBs. We assume that the GRB jet has a finite opening angle and that the orientation of the GRB jet is random relative to the observer.We calculate $L_{median}$ as a function of redshift by simulating GRBs empirically, theoretically and use the luminosity vs redshift {\it Swift} data in order to compare the theoretical results with the observed ones. The method accounts for the fact that at some redshifts there may be some GRBs that go undetected. We find that $L_{median}$ is extremely insensitive to the on-axis (i.e. maximal) luminosity of the jet.
description: 9 pages, 9 figures, 3 tables, accepted for publication in A&A. arXiv admin note: substantial text overlap with arXiv:2010.04810
Fluctuation Conductivity and Vortex State in Superconductor with Strong Paramagnetic Pair Breaking
Creators: name: Nunchot, Naratip
name: Nakashima, Dai
name: Ikeda, Ryusuke
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The fluctuation conductivity of a moderately clean type II superconductor with strong Pauli paramagnetic pair-breaking (PPB) is studied by focusing on the quantum regime at low temperatures and in high magnetic fields. First, it is pointed out that, as the PPB effect becomes stronger, the quantum superconducting fluctuation is generally enhanced so that the Aslamasov-Larkin (AL) fluctuation conductivity tends to vanish upon cooling. Further, by examining other (the DOS and the Maki-Thompson (MT)) terms of the fluctuation conductivity, the field dependence of the resulting total conductivity is found to depend significantly on the type of the vortex lattice (or, glass) ordered state at low temperatures where the strong PPB plays important roles. By comparing the present theoretical results with the fluctuation-induced negative magnetoresistance behavior upon entering a PPB-induced novel SC phase of Iron selenide (FeSe), it is argued that the vortex matter states of the superconducting order parameter in the second lowest ($n=1$) Landau level are realized in FeSe in the parallel field configuration in high fields and at low temperatures
description: 9 figures, Some figures and some references were added. resubmitted version
Nanoflare distributions over solar cycle 24 based on SDO/AIA differential emission measure observations
Creators: name: Purkhart, Stefan
name: Veronig, Astrid M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Nanoflares in quiet-Sun regions during solar cycle 24 are studied with the best available plasma diagnostics to derive their energy distribution and contribution to coronal heating during different levels of solar activity. Extreme ultraviolet (EUV) filters of the Atmospheric Imaging Assembly (AIA) onboard the Solar Dynamics Observatory (SDO) are used. We analyze 30 AIA/SDO image series between 2011 and 2018, each covering a $400 \times 400$ arcsec quiet-Sun field-of-view over two hours with a 12-second cadence. Differential emission measure (DEM) analysis is used to derive the emission measure (EM) and temperature evolution for each pixel. We detect nanoflares as EM-enhancements using a threshold-based algorithm and derive their thermal energy from the DEM observations. Nanoflare energy distributions follow power-laws that show slight variations in steepness ($α=$ 2.02 to 2.47) but no correlation to the solar activity level. The combined nanoflare distribution of all data sets covers five orders of magnitude in event energies ($10^{24} \mathrm{~to~} 10^{29} \mathrm{~erg}$) with a power-law index $α=2.28 \pm0.03$. The derived mean energy flux of $(3.7\pm 1.6)\times 10^4\mathrm{~erg~cm^{-2}~s^{-1}}$ is one order of magnitude smaller than the coronal heating requirement. We find no correlation between the derived energy flux and solar activity. Analysis of the spatial distribution reveals clusters of high energy flux (up to $3\times 10^5 \mathrm{~erg~cm^{-2}~s^{-1}}$) surrounded by extended regions with lower activity. Comparisons with magnetograms from the Helioseismic and Magnetic Imager (HMI) demonstrate that high-activity clusters are located preferentially in the magnetic network and above regions of enhanced magnetic flux density.
Wind measurement from aircraft, 1993 : annotated and updated 2013.
Creators: name: Leise, J. A. (James A.)
name: Masters, Jeffrey
name: Dobosy, Ronald J.
Publisher: name: U.S. Department of Commerce, National Oceanic and Atmospheric Administration, Oceanic and Atmospheric Research, Air Resources Laboratory, Atmospheric Turbulence and Diffusion Division.
Year: 2013
Subjects: subject: Winds--Measurement--Analysis.

description: James Leise of NOAA's Aircraft Operations Center (AOC) devoted many years to fundamental analysis and development of wind measurement from aircraft. When he died in 1990 shortly before completing this thorough documentation of his work, Jeffrey Masters, who had worked with him completed the manuscript. Since some of the work was experimental and departed significantly from operational practice at AOC, they decided not to publish the manuscript. The strong theoretical footing and thorough nature of the work, however, nurtured the development of wind measurement from small aircraft, beginning in the late 1980s. Much of the document remains relevant still, and publications in significant and still-growing numbers have cited this manuscript despite its remaining unpublished (see Appendix I). The recent appearance of several publications citing the work motivated NOAA’s Air Resources Laboratory (ARL) to publish the 1993 original verbatim, adding a chapter of annotations to update the original where appropriate. Topics covered include geodetic and aircraft coordinate systems, relation between airflow measured from an airplane and wind experienced on the ground, relevant thermodynamics, three-component airflow measurements at high speed by pressure sphere, calibration practices, data acquisition, data processing, and quality control. The primary lasting value of this work lies in the background understanding of procedures provided by its theoretical depth, which is impossible to reach in journal publications except by reference to work such as this.
Deep Visual Recognition with Limited Human Supervision
Creators: name: NASSAR, ISLAM HANY ABBAS
Publisher: name: Monash University
Year: 2024
Subjects: classificationCode: 461103
subject: Deep learning
classificationCode: 460208
subject: Natural language processing
classificationCode: 460304
subject: Computer vision

description: This thesis explores how to make computer vision models, which help computers understand visual data, more effective when we have only a small amount of human annotated data to teach them. It investigates various strategies to improve the way these models learn from limited examples, presenting novel approaches that make the learning process more efficient and accurate. These innovations hold significant potential to advance computer vision technology in practical, real-world applications where labeled data can be scarce or expensive to obtain.
Kibble-Zurek scaling from linear response theory
Creators: name: Nazé, Pierre
name: Bonança, Marcus V. S.
name: Deffner, Sebastian
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: While quantum phase transitions share many characteristics with thermodynamic phase transitions, they are also markedly different as they occur at zero temperature. Hence, it is not immediately clear whether tools and frameworks that capture the properties of thermodynamic phase transitions also apply in the quantum case. Concerning the crossing of thermodynamic critical points and describing its non-equilibrium dynamics, the Kibble-Zurek mechanism and linear response theory have been demonstrated to be among the very successful approaches. In the present work, we show that these two approaches are consistent also in the description of quantum phase transitions, and that linear response theory can even inform arguments of the Kibble-Zurek mechanism. In particular, we show that the relaxation time provided by linear response theory gives a rigorous argument for why to identify the "gap" as a relaxation rate, and we verify that the excess work computed from linear response theory exhibits Kibble-Zurek scaling.
description: 14 pages, 5 figures
First Light And Reionisation Epoch Simulations (FLARES) IV: The size evolution of galaxies at $z\geq5$
Creators: name: Roper, William J.
name: Lovell, Christopher C.
name: Vijayan, Aswin P.
name: Marshall, Madeline A.
name: Irodotou, Dimitrios
name: Kuusisto, Jussi K.
name: Thomas, Peter A.
name: Wilkins, Stephen M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the intrinsic and observed sizes of galaxies at $z\geq5$ in the First Light And Reionisation Epoch Simulations (FLARES). We employ the large effective volume of FLARES to produce a sizeable sample of high redshift galaxies with intrinsic and observed luminosities and half light radii in a range of rest frame UV and visual photometric bands. This sample contains a significant number of intrinsically ultra-compact galaxies in the far-UV (1500 angstrom), leading to a negative intrinsic far-UV size-luminosity relation. However, after the inclusion of the effects of dust these same compact galaxies exhibit observed sizes that are as much as 50 times larger than those measured from the intrinsic emission, and broadly agree with a range of observational samples. This increase in size is driven by the concentration of dust in the core of galaxies, heavily attenuating the intrinsically brightest regions. At fixed luminosity we find a galaxy size redshift evolution with a slope of $m=1.21-1.87$ depending on the luminosity sample in question, and we demonstrate the wavelength dependence of the size-luminosity relation which will soon be probed by the Webb Space Telescope.
Prospects of measuring a metallicity trend and spread in globular clusters from low-resolution spectroscopy
Creators: name: Baratella, Martina
name: Prabhu, Deepthi S.
name: Silva-Lima, Luiz A.
name: Prugniel, Philippe
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: The metallicity spread, or the metallicity trend along the evolutionary sequence of a globular cluster, is a rich source of information to help understand the cluster physics (e.g. multiple populations) and stellar physics (e.g. atomic diffusion). Low-resolution integral-field-unit spectroscopy in the optical with the MUSE is an attractive prospect if it can provide these diagnostics because it allows us to extract spectra of a large fraction of the cluster stars. We investigate the possibilities of full-spectrum fitting to derive stellar parameters and chemical abundances at low spectral resolution (R~2000). We reanalysed 1584 MUSE spectra of 1061 stars above the turn-off of NGC 6397 using FERRE and employing two different synthetic libraries. We derive the equivalent iron abundance \fehe for fixed values of \afe. We find that (i) the interpolation schema and grid mesh are not critical for the precision, metallicity spread, and trend; (ii) with the two grids, \fehe increases by ~0.2 dex along the sub-giant branch, starting from the turn-off of the main sequence; (iii) restricting the wavelength range to the optical decreases the precision significantly; and (iv) the precision obtained with the synthetic libraries is lower than the precision obtained previously with empirical libraries. Full-spectrum fitting provides reproducible results that are robust to the choice of the reference grid of synthetic spectra and to the details of the analysis. The \fehe increase along the sub-giant branch is in stark contrast with the nearly constant iron abundance previously found with empirical libraries. The precision of the measurements (0.05 dex on \fehe) is currently not sufficient to assess the intrinsic chemical abundance spreads, but this may change with deeper observations. Improvements of the synthetic spectra are still needed to deliver the full possibilities of full-spectrum fitting.
description: 18 pages, 8 figures + 1 appendix figure, accepted for publication in A&A
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: 2022
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 e-Scriptorium (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 the professor Constance Carta at the University of Geneva and supported by the philanthropic Sandoz-Monique de Meuron Family Foundation.
title: World History Connected, Vol. 9 No. 2: Summer 2012
title: Summer 2012
titleType: AlternativeTitle
Creators: name: World History Connected
Publisher: name: World History Connected
Year: 2012

description: Jack Goldstone, Why Europe? The Rise of the West in World History, 1500–1850
Michael Keren and Shlomit Keren, We Are Coming, Unafraid: The Jewish Legions and the Promised Land in the First World War
Ian Tatersall. The World from Beginnings to 4000 BCE
Ralph C. Croizier, et al., eds., Art in World History
Allen, Robert C. The British Industrial Revolution in Global Historical Perspective
Neil MacGregor, A History of the World in 100 Objects
Edward Berenson, Heroes of Empire: Five Charismatic Men and the Conquest of Africa
Guides to the Advanced Placement World History Course Revision and the New "Teacher Community" Resource: An Update
Review Article: Modern Chinese Architecture in Global Perspective
Historicizing Christopher Columbus for Elementary and Secondary Students
Angels and Demons: Yugoslav Resistance in the American Press 1941-1945
Visualizing the Invisible Other through Art, Photography and Film: Digital Resources
Portraits of the Young Teacher Experiencing and Incorporating Art into Teaching: A Memoir (Including Creating Dialogue Using Historical Paintings)
Red Handed: An Inquiry Into the Meaning of Prehistoric Red Ochre Handprints
Using Art to Develop Thinking Skills in the World History Classroom
History from Things: Indigenous Objects and Colonial Latin America
Imperial Attire and National Identity in Ancient Assyria, Qajar Iran and Qing China
Introduction
Editor's Message and Introduction to the Issue
Sadibou Seydi, Sheikh Mâ al-Aynayn le grand prédicateur du Sahara Occidental
Creators: name: Seydi, Sadibou
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 470501
subject: African literature
classificationCode: 470507
subject: Comparative and transnational literature
classificationCode: 470514
subject: Literary theory

description: Sadibou Seydi, Sheikh Mâ al-Aynayn le grand prédicateur du Sahara Occidental
Statistical analysis of circular-ribbon flares
Creators: name: Zhang, Yanjie
name: Zhang, Qingmin
name: Song, Dechao
name: Li, Shuting
name: Dai, Jun
name: Xu, Zhe
name: Ji, Haisheng
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Circular-ribbon flares (CFs) are a special type of solar flares owing to their particular magnetic topology. In this paper, we conducted a comprehensive statistical analysis of 134 CFs from 2011 September to 2017 June, including four B-class, 82 C-class, 40 M-class, and eight X-class flares, respectively. The flares were observed by the Atmospheric Imaging Assembly (AIA) on board the Solar Dynamics Observatory (SDO) spacecraft. The physical properties of CFs are derived, including the location, area ($A_{CF}$), equivalent radius ($r_{CF}$) assuming a semi-spherical fan dome, lifetime ($τ_{CF}$), and peak SXR flux in 1$-$8 Å. It is found that all CFs are located in active regions, with the latitudes between -30$^\circ$ and 30$^\circ$. The distributions of areas and lifetimes could be fitted with a log-normal function. There is a positive correlation between the lifetime and area. The peak SXR flux in 1$-$8 Å is well in accord with a power-law distribution with an index of $-$1.42. For the 134 CFs, 57\% of them are accompanied by remote brightenings or ribbons. A positive correlation exists between the total length ($L_{RB}$) and average distance ($D_{RB}$) of remote brightenings. About 47\% and 51\% of the 134 CFs are related to type III radio bursts and jets, respectively. The association rates are independent of flare energies. About 38\% of CFs are related to mini-filament eruptions, and the association rates increase with flare classes. Only 28\% of CFs are related to CMEs, meaning that a majority of them are confined rather than eruptive events. There is a positive correlation between the CME speed and peak SXR flux in 1$-$8 Å, and faster CMEs tend to be wider.
description: 17 pages, 22 figures, accepted for publication in The Astrophysical Journal Supplement Series, comments are welcome
Whose myth? The echo and the diaspora
Creators: name: Quintanilla, Lucreccia
Publisher: name: Monash University
Year: 2021
Subjects: classificationCode: 360306
subject: Musicology and ethnomusicology
classificationCode: 360199
subject: Art history, theory and criticism not elsewhere classified

description: This research examines the echo as a metaphor, a cultural artefact and an effect within the artistic context. In this manuscript, the echo works as an artistic and theoretical device to engage within multiplicity, with Latin American diasporic narratives within a variety of cultural manifestations. The research presents a case for the relational.

With specific consideration of the nature of the echo as an effect, a metaphor and an artistic and theoretical device to engage with narratives in their multiplicity. The research presents a case for understanding the sound within the oral tradition as a way to articulate complexity and a recognition of the importance of specificity. This research highlights the importance of an approach that is grounded in a need to work collaboratively to create space and language in which to generate, aggregate and amplify knowledges.
Extended triaxial projected shell model approach for odd-neutron nuclei
Creators: name: Jehangir, S.
name: Nazir, Nazira
name: Bhat, G. H.
name: Sheikh, J. A.
name: Rather, N.
name: Chakraborty, S.
name: Palit, R.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In an effort to elucidate the rich band structures observed in odd-neutron systems, triaxial projected shell model approach is extended to include three-quasineutron and five-quasiparticle configurations. This extension makes it possible to investigate the high-spin states up to and including the second band crossing. Detailed investigation has been performed for odd-mass Xe isotopes with the extended basis, and it is shown that character of the band crossing along the yrast line changes with shell filling of the 1h11/2 orbital. Further, it is observed that the three-quasiparticle state that crosses the ground-state configuration, leading to the normal band crossing phenomenon along the yrast line, first crosses the γ band based on the ground-state configuration at an earlier spin value. This crossing feature explains the occurrence of the signature inversion observed in the γ bands for some of the studied isotopes.
Introduction to DataCite
Creators: name: Mejias, Gabriela
Publisher: name: DataCite
Year: 2025
Subjects: Persistent Identifiers
Metadata
Open Research Infrastructure
Global Access Fund
DataCite

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: Gabi Mejias, DataCite

A recording of the presentation can be found here: https://youtu.be/m08IaXHCS7k
Nobeyama Survey of Inward Motions toward Cores in Orion Identified by SCUBA-2
Creators: name: Tatematsu, Ken'ichi
name: Yeh, You-Ting
name: Hirano, Naomi
name: Liu, Sheng-Yuan
name: Liu, Tie
name: Dutta, Somnath
name: Sahu, Dipen
name: Evans, Neal J.
name: Juvela, Mika
name: Yi, Hee-Weon
name: Lee, Jeong-Eun
name: Sanhueza, Patricio
name: Li, Shanghuo
name: Eden, David
name: Kim, Gwanjeong
name: Lee, Chin-Fei
name: Wu, Yuefang
name: Kim, Kee-Tae
name: T'oth, L. Viktor
name: Choi, Minho
name: Kang, Miju
name: Thompson, Mark A.
name: Fuller, Gary A.
name: Di Li, 20
name: Wang, Ke
name: Sakai, Takeshi
name: Kandori, Ryo
name: Hsu, Shih-Ying
name: Chiong, Chau-Ching
name: collaboration, JCMT Large Program SCOPE
name: collaboration, ALMASOP
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: In this study, 36 cores (30 starless and 6 protostellar) identified in Orion were surveyed to search for inward motions. We used the Nobeyama 45 m radio telescope, and mapped the cores in the $J = 1\rightarrow0$ transitions of HCO$^+$, H$^{13}$CO$^+$, N$_2$H$^+$, HNC, and HN$^{13}$C. The asymmetry parameter $δV$, which was the ratio of the difference between the HCO$^+$ and H$^{13}$CO$^+$ peak velocities to the H$^{13}$CO$^+$ line width, was biased toward negative values, suggesting that inward motions were more dominant than outward motions. Three starless cores (10% of all starless cores surveyed) were identified as cores with blue-skewed line profiles (asymmetric profiles with more intense blue-shifted emission), and another two starless cores (7%) were identified as candidate blue-skewed line profiles. The peak velocity difference between HCO$^+$ and H$^{13}$CO$^+$ of them was up to 0.9 km s$^{-1}$, suggesting that some inward motions exceeded the speed of sound for the quiescent gas ($\sim10-17$ K). The mean of $δV$ of the five aforementioned starless cores was derived to be $-$0.5$\pm$0.3. One core, G211.16$-$19.33North3, observed using the ALMA ACA in DCO$^+$ $J = 3\rightarrow2$ exhibited blue-skewed features. Velocity offset in the blue-skewed line profile with a dip in the DCO$^+$ $J = 3\rightarrow2$ line was larger ($\sim 0.5$ km s$^{-1}$) than that in HCO$^+$ $J = 1\rightarrow0$ ($\sim 0.2$ km s$^{-1}$), which may represent gravitational acceleration of inward motions. It seems that this core is at the last stage in the starless phase, judging from the chemical evolution factor version 2.0 (CEF2.0).
description: 45 pages, 28 figures, ApJ in press
Discovery of NES, an extended tidal structure in the North-East of the Large Magellanic Cloud
Creators: name: Gatto, M.
name: Ripepi, V.
name: Bellazzini, M.
name: Tortora, C.
name: Tosi, M.
name: Cignoni, M.
name: Longo, G.
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 report on the discovery of a new diffuse stellar sub-structure protruding for 5 degrees from the North-Eastern rim of the LMC disc. The structure, that we dub North-East Structure (NES), was identified by applying a Gaussian Mixture Model to a sample of strictly selected candidate members of the Magellanic System, extracted from the Gaia EDR3 catalogue. The NES fills the gap between the outer LMC disk and other known structures in the same region of the LMC, namely the Northern tidal arm (NTA) and the Eastern sub-structures (ES). Particularly noteworthy is that the NES is placed in a region where N-body simulations foresee a bending of the LMC disc due to tidal stresses induced by the MW. The velocity field in the plane of the sky indicates that the complex of tidal structures in the North-Eastern part of the LMC, including NES, is subject to coherent radial motions. Additional data, as well as extensive dynamical modeling, is required to shed light on the origin of NES as well as on the relationships with the surrounding substructures.
description: 11 pages, 8 figures. Accepted for publication in ApJ
Multi-wavelength Variability of Sagittarius A* in July 2019
Creators: name: Boyce, H.
name: Haggard, D.
name: Witzel, G.
name: von Fellenberg, S.
name: Willner, S. P.
name: Becklin, E. E.
name: Do, T.
name: Eckart, A.
name: Fazio, G. G.
name: Gurwell, M. A.
name: Hora, J. L.
name: Markoff, S.
name: Morris, M. R.
name: Neilsen, J.
name: Nowak, M.
name: Smith, H. A.
name: Zhang, S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report timing analysis of near-infrared (NIR), X-ray, and sub-millimeter (submm) data during a three-day coordinated campaign observing Sagittarius A*. Data were collected at 4.5 micron with the Spitzer Space Telescope, 2-8 keV with the Chandra X-ray Observatory, 3-70 keV with NuSTAR, 340 GHz with ALMA, and at 2.2 micron with the GRAVITY instrument on the Very Large Telescope Interferometer. Two dates show moderate variability with no significant lags between the submm and the infrared at 99% confidence. July 18 captured a moderately bright NIR flare (F_K ~ 15 mJy) simultaneous with an X-ray flare (F ~ 0.1 cts/s) that most likely preceded bright submm flux (F ~ 5.5 Jy) by about +34 (+14 -33) minutes at 99% confidence. The uncertainty in this lag is dominated by the fact that we did not observe the peak of the submm emission. A synchrotron source cooled through adiabatic expansion can describe a rise in the submm once the synchrotron-self-Compton NIR and X-ray peaks have faded. This model predicts high GHz and THz fluxes at the time of the NIR/X-ray peak and electron densities well above those implied from average accretion rates for Sgr A*. However, the higher electron density postulated in this scenario would be in agreement with the idea that 2019 was an extraordinary epoch with a heightened accretion rate. Since the NIR and X-ray peaks can also be fit by a non-thermal synchrotron source with lower electron densities, we cannot rule out an unrelated chance coincidence of this bright submm flare with the NIR/X-ray emission.
description: Accepted for publication in The Astrophysical Journal
Studying Interstellar Turbulence Driving Scales using the Bispectrum
Creators: name: O'Brien, Michael J.
name: Burkhart, Blakesley
name: Shelley, Michael J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We demonstrate the utility of the bispectrum, the Fourier three-point correlation function, for studying driving scales of magnetohydrodynamic (MHD) turbulence in the interstellar medium. We calculate the bispectrum by implementing a parallelized Monte Carlo direct measurement method, which we have made publicly available. In previous works, the bispectrum has been used to identify non-linear scaling correlations and break degeneracies in lower-order statistics like the power spectrum. We find that the bicoherence, a related statistic which measures phase coupling of Fourier modes, identifies turbulence driving scales using density and column density fields. In particular, it shows that the driving scale is phase-coupled to scales present in the turbulent cascade. We also find that the presence of an ordered magnetic field at large-scales enhances phase coupling as compared to a pure hydrodynamic case. We therefore suggest the bispectrum and bicoherence as tools for searching for non-locality for wave interactions in MHD turbulence.
description: 12 pages, 9 figures
p-process chaser detector in $n$-$γ$ coincidences
Creators: name: Utsunomiya, H.
name: Hao, Z. R.
name: Goriely, S.
name: Cao, X. G.
name: Fan, G. T.
name: Wang, H. W.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We propose two types of neutron-$γ_1$-$γ_2$ triple coincidence detectors (not constructed) to chase gamma transitions to produce p-nuclei following the neutron emission in the $(γ, n)$ reaction. Neutrons are detected with 24 $^3$He counters embedded in a polyethylene moderator in Type I detector and with 6 liquid scintillation detectors in Type II detector, respectively. $γ$ rays are detected with two high-purity germanium detectors and four LaBr$_3$(Ce) detectors. The detector which is referred to as p-process chaser detector is used to search for mediating states in $^{180}$Ta through which the isomeric and ground states in $^{180}$Ta are thermalized in the p-process. A search is made for both resonant states and unresolved states in high nuclear-level-density domain.
Collision of protostellar jets in the star-forming region IC 1396N. Analysis of knot proper motions
Creators: name: López, Rosario
name: Estalella, Robert
name: Beltrán, María T.
name: Massi, Fabricio
name: Acosta-Pulido, José A.
name: Girart, Josep M.
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: The bright-rimmed cloud IC 1396N is believed to host one of the few known cases where two bipolar CO outflows driven by young stellar objects actually collide. The CO outflows are traced by chains of knots of H_2 emission, with enhanced emission at the position of the possible collision. The aim of this work is to use the proper motions of the H_2 knots to confirm the collision scenario. A second epoch H_2 image was obtained, and the proper motions of the knots were determined with a time baseline of ~11 years. We also performed differential photometry on the images to check the flux variability of the knots. For each outflow (N and S) we classified the knots as pre-collision or post-collision. The axes of the pre-collision knots, the position of the possible collision point, and the axes of the post-collision knots were estimated. The difference between the proper motion direction of the post-collision knots and the position angle from the collision point was also calculated. For some of the knots we obtained the 3D velocity by using the radial velocity derived from H_2 spectra. The velocity pattern of the H_2 knots in the area of interaction (post-collision knots) shows a deviation from that of the pre-collision knots, consistent with being a consequence of the interaction between the two outflows. This favours the interpretation of the IC 1396N outflows as a true collision between two protostellar jets instead of a projection effect.
description: Accepted by A&A; 10 pages, 6 figures