cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The GLEAM 4-Jy (G4Jy) Sample: I. Definition and the catalogue
Creators: name: White, Sarah V.
name: Franzen, Thomas M. O.
name: Riseley, Chris J.
name: Wong, O. Ivy
name: Kapińska, Anna D.
name: Hurley-Walker, Natasha
name: Callingham, Joseph R.
name: Thorat, Kshitij
name: Wu, Chen
name: Hancock, Paul
name: Hunstead, Richard W.
name: Seymour, Nick
name: Swan, Jesse
name: Wayth, Randall
name: Morgan, John
name: Chhetri, Rajan
name: Jackson, Carole
name: Weston, Stuart
name: Bell, Martin
name: For, Bi-Qing
name: Gaensler, B. M.
name: Johnston-Hollitt, Melanie
name: Offringa, André
name: Staveley-Smith, Lister
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The Murchison Widefield Array (MWA) has observed the entire southern sky (Declination, $δ$ 10 deg) to define the GLEAM 4-Jy (G4Jy) Sample. This is a complete sample of the 'brightest' radio-sources ($S_{\mathrm{151MHz}} >$ 4 Jy), the majority of which are active galactic nuclei with powerful radio-jets. Crucially, low-frequency observations allow the selection of such sources in an orientation-independent way (i.e. minimising the bias caused by Doppler boosting, inherent in high-frequency surveys). We then use higher-resolution radio images, and information at other wavelengths, to morphologically classify the brightest components in GLEAM. We also conduct cross-checks against the literature, and perform internal matching, in order to improve sample completeness (which is estimated to be $>$ 95.5%). This results in a catalogue of 1,863 sources, making the G4Jy Sample over 10 times larger than that of the revised Third Cambridge Catalogue of Radio Sources (3CRR; $S_{\mathrm{178MHz}} >$ 10.9 Jy). Of these G4Jy sources, 78 are resolved by the MWA (Phase-I) synthesised beam ($\sim$2 arcmin at 200 MHz), and we label 67% of the sample as 'single', 26% as 'double', 4% as 'triple', and 3% as having 'complex' morphology at $\sim$1 GHz (45-arcsec resolution). Alongside this, our value-added catalogue provides mid-infrared source associations (subject to 6-arcsec resolution at 3.4 micron) for the radio emission, as identified through visual inspection and thorough checks against the literature. As such, the G4Jy Sample can be used as a reliable training set for cross-identification via machine-learning algorithms. [Abstract abridged for arXiv submission.]
description: 57 pages (30 MB in size), 23 figures, 16 tables, accepted for publication in PASA, and now updated to match the final proof. Full-resolution images will be used for the published version, available through the journal. To keep up-to-date regarding the G4Jy Sample, bookmark https://github.com/svw26/G4Jy
Additional file 2 of Students’ intentions to practice primary care are associated with their motives to become doctors: a longitudinal study
Creators: name: Pfarrwaller, Eva
name: Voirol, Lionel
name: Piumatti, Giovanni
name: Karemera, Mucyo
name: Sommer, Johanna
name: Gerbase, Margaret W.
name: Guerrier, Stéphane
name: Baroffio, Anne
Publisher: name: figshare
Year: 2022
Subjects: subject: Neuroscience
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 2. Evolution of the rating of motives for becoming a doctor in a cohort of medical students followed over four years (academic year 3 to 6), stratified by gender. This supplemental figure highlights the gender differences in the rating of motives for becoming a doctor, presented by academic year.
Urgleptes bimaculatus Gilmour 1960
Creators: name: Monné, Miguel A.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Urgleptes
Urgleptes bimaculatus

description: 5. Urgleptes bimaculatus Gilmour, 1960
Type locality — Guatemala, Quiché: Nebaj. (AMNH). Distribution — Guatemala.
 Urgleptes bimaculata Gilmour, 1960d: 14, fig. 7; Chemsak et al., 1992: 148 (cat.).
description: Published as part of Monné, Miguel A., 2005, Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part II. Subfamily Lamiinae, pp. 1-760 in Zootaxa 1023 (1) on pages 1-760, DOI: 10.11646/zootaxa.946.1.1, http://zenodo.org/record/5049553
LEAD-LAG STRUCTURE OF SLAUGHTER HOG PRICES BETWEEN UNITED STATES MIDWEST AND FOUR MAJOR CANADIAN MARKETS UTILIZING UNIVARIATE RESIDUAL CROSS-CORRELATION TECHNIQUE
Creators: name: Beaton, Norman J.
name: Pearson, Charles L.
name: Beaton, Norman J.
name: Pearson, Charles L.
Publisher: name: Unknown
Year: 1982
Subjects: subject: Livestock Production/Industries
subject: Marketing
subject: FOS: Economics and business

description: The univariate residual cross-correlation technique is applied to weekly slaughter hog prices for Winnipeg, Saskatoon, Edmonton, Toronto, and an average of the seven Midwest United States markets over the period 1973-1980. The purpose is to examine the power of the technique in determining leads and lags between the markets.
How fast do rumours spread?
Creators: name: Roy, Rishideep
name: Saha, Kumarjit
Publisher: name: arXiv
Year: 2023
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 82C22

description: We study a rumour propagation model along the lines of \cite{lebensztayn2008disk} as a long-range percolation model on $\Z$. We begin by showing a sharp phase transition-type behaviour in the sense of exponential decay of the survival time of the rumour cluster in the sub-critical phase.
 In the super-critical phase, \update{under the assumption that radius of influence r.v. has $2+ε$ moment finite (for some $ε>0$)}, we show that the rightmost vertex in the rumour cluster has a deterministic speed in the sense that after appropriate scaling, the location of the rightmost vertex converges a.s.\ to a deterministic positive constant. \update{Under the assumption that radius of influence r.v. has $4+ε$ moment finite,} we obtain a central limit theorem for appropriately scaled and centred rightmost vertex. Later, we introduce a rumour propagation model with reactivation.
 For this section, we work with a family of exponentially decaying i.i.d. radius of influence r.v.'s, and we obtain the speed result for the scaled rightmost position of the rumour cluster. Each of these results is novel, in the sense that such properties have never been established before in the context of the rumour propagation model on $\Z$, to the best of our knowledge.
description: 29 pages, 2 figures
A Method for Weight Multiplicity Computation Based on Berezin Quantization
Creators: name: Bar-Moshe, David
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mathematical Physics (math-ph)
subject: Representation Theory (math.RT)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 22E46,32M05, 32M10 (Primary); 53D50, 81Q70 (Secondary)

description: Let $G$ be a compact semisimple Lie group and $T$ be a maximal torus of $G$. We describe a method for weight multiplicity computation in unitary irreducible representations of $G$, based on the theory of Berezin quantization on $G/T$. Let $Γ_{\rm hol}(\mathcal{L}^λ)$ be the reproducing kernel Hilbert space of holomorphic sections of the homogeneous line bundle $\mathcal{L}^λ$ over $G/T$ associated with the highest weight $λ$ of the irreducible representation $π_λ$ of $G$. The multiplicity of a weight $m$ in $π_λ$ is computed from functional analytical structure of the Berezin symbol of the projector in $Γ_{\rm hol}(\mathcal{L}^λ)$ onto subspace of weight $m$. We describe a method of the construction of this symbol and the evaluation of the weight multiplicity as a rank of a Hermitian form. The application of this method is described in a number of examples.
A Volumetric Study of Flux Transfer Events at the Dayside Magnetopause
Creators: name: Paul, Arghyadeep
name: Vaidya, Bhargav
name: Strugarek, Antoine
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: Localized magnetic reconnection at the dayside magnetopause leads to the production of Flux Transfer Events (FTEs). The magnetic field within the FTEs exhibit complex helical flux-rope topologies. Leveraging the Adaptive Mesh Refinement (AMR) strategy, we perform a 3-dimensional magnetohydrodynamic simulation of the magnetosphere of an Earth-like planet and study the evolution of these FTEs. For the first time, we detect and track the FTE structures in 3D and present a complete volumetric picture of FTE evolution. The temporal evolution of thermodynamic quantities within the FTE volumes confirm that continuous reconnection is indeed the dominant cause of active FTE growth as indicated by the deviation of the P-V curves from an adiabatic profile. An investigation into the magnetic properties of the FTEs show a rapid decrease in the perpendicular currents within the FTE volume exhibiting the tendency of internal currents toward being field aligned. An assessment on the validity of the linear force-free flux rope model for such FTEs show that the structures drift towards a constant-$α$ state but continuous reconnection inhibits the attainment of a purely linear force-free configuration. Additionally, the flux enclosed by the selected FTEs are computed to range between 0.3-1.5 MWb. The FTE with the highest flux content constitutes $\sim$ 1% of the net dayside open flux. These flux values are further compared against the estimates provided by the linear force-free flux-rope model. For the selected FTEs, the linear force-free model underestimated the flux content by up to 40% owing to the continuous reconnected flux injection.
description: 24 pages, 15 figures ; Accepted for publication in The Astrophysical Journal (ApJ)
Discontinuous Transition to Superconducting Phase
Creators: name: Sato, Takumi
name: Kobayashi, Shingo
name: Asano, Yasuhiro
Publisher: name: arXiv
Year: 2023
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We discuss the instability of uniform superconducting states that contain the pairing correlations belonging to the odd-frequency symmetry class. The instability originates from the paramagnetic response of odd-frequency Cooper pairs and is considerable at finite temperatures. As a result, the pair potential varies discontinuously at the transition temperature when the amplitude of the odd-frequency pairing correlation functions is sufficiently large. The discontinuous transition to the superconducting phase is a general feature of superconductors that include odd-frequency Cooper pairs.
description: 16 pages, 2 figure
The GLEAM 4-Jy (G4Jy) Sample: II. Host-galaxy identification for individual sources
Creators: name: White, Sarah V.
name: Franzen, Thomas M. O.
name: Riseley, Chris J.
name: Wong, O. Ivy
name: Kapińska, Anna D.
name: Hurley-Walker, Natasha
name: Callingham, Joseph R.
name: Thorat, Kshitij
name: Wu, Chen
name: Hancock, Paul
name: Hunstead, Richard W.
name: Seymour, Nick
name: Swan, Jesse
name: Wayth, Randall
name: Morgan, John
name: Chhetri, Rajan
name: Jackson, Carole
name: Weston, Stuart
name: Bell, Martin
name: Gaensler, B. M.
name: Johnston-Hollitt, Melanie
name: Offringa, André
name: Staveley-Smith, Lister
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The entire southern sky (Declination, $δ$ 4 Jy) in the extragalactic catalogue (Galactic latitude, $|b| >$ 10 deg). We refer to these 1,863 sources as the GLEAM 4-Jy (G4Jy) Sample, and use radio images (of $\leq$ 45-arcsec resolution), and multi-wavelength information, to assess their morphology and identify the galaxy that is hosting the radio emission (where appropriate). Details of how to access all of the overlays used for this work are available at https://github.com/svw26/G4Jy. Alongside this we conduct further checks against the literature, which we document in this paper for individual sources. Whilst the vast majority of the G4Jy Sample are active galactic nuclei with powerful radio-jets, we highlight that it also contains a nebula, two nearby, star-forming galaxies, a cluster relic, and a cluster halo. There are also three extended sources for which we are unable to infer the mechanism that gives rise to the low-frequency emission. In the G4Jy catalogue we provide mid-infrared identifications for 86% of the sources, and flag the remainder as: having an uncertain identification (129 sources), having a faint/uncharacterised mid-infrared host (126 sources), or it being inappropriate to specify a host (2 sources). For the subset of 129 sources, there is ambiguity concerning candidate host-galaxies, and this includes four sources (B0424$-$728, B0703$-$451, 3C 198, and 3C 403.1) where we question the existing identification.
description: 37 pages (24 MB in size), 23 figures, 3 tables, accepted for publication in PASA, and now updated to match the final proof. Full-resolution images will be used for the published version, available through the journal
Platform functional requirements
Creators: name: Tronconi, Elisa
name: Catania, Felice
name: Occhipinti, Stefania
name: Nattino, Giovanni
Publisher: name: Zenodo
Year: 2025

description: This document outlines the progress in developing the eCREAM integrated platform under Work Package 6(WP6). The primary goal of WP6 is to create a unified platform that integrates various eCREAM modules,including interfaces with hospitals, natural language processing (NLP), semantic transformation, translations,and data analysis. The platform will also ensure consistency in localizing eCREAM tools across differentcountries, functioning as a central hub for all project activities.
Wide Bandpass and Narrow Bandstop Microstrip Filters Based on Hilbert Fractal Geometry: Design and Simulation Results
Creators: name: Ali, Jawad K.
Publisher: name: figshare
Year: 2020
Subjects: subject: 90699 Electrical and Electronic Engineering not elsewhere classified
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This paper presents new Wide Bandpass Filter (WBPF) and Narrow Bandstop Filter (NBSF) incorporating two microstrip resonators, each resonator is based on 2nd iteration of Hilbert fractal geometry. The type of filter as pass or reject band has been adjusted by coupling gap parameter (d) between Hilbert resonators using a substrate with a dielectric constant of 10.8 and a thickness of 1.27 mm. Numerical simulation results as well as a parametric study of d parameter on filter type and frequency responses are presented and studied. WBPF has designed at resonant
frequencies of 2 and 2.2 GHz with a bandwidth of 0.52 GHz, 228 dB return loss and 20.125 dB insertion loss while NBSF has designed for electrical specifications of 2.37 GHz center frequency, 20 MHz rejection bandwidth, 20.1873 dB return
loss and 13.746 dB insertion loss. The proposed technique offers a new alternative to construct low-cost high-performance filter devices, suitable for a wide range of
wireless communication systems.
Investigation of Dual-Mode Microstrip Bandpass Filter Based on SIR Technique
Creators: name: Ali, Jawad K.
Publisher: name: figshare
Year: 2020
Subjects: subject: 90699 Electrical and Electronic Engineering not elsewhere classified
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this paper, a new bandpass filter design has been presented using simple topology of stepped impedance square loop resonator. The proposed bandpass filter has been simulated and fabricated using a substrate with an insulation constant of 10.8, thickness of 1.27mm and loss tangent of 0.0023 at center frequency of 5.8 GHz. The simulation results have been evaluated using Sonnet simulator that is extensively adopted in microwave analysis and implementation. The output frequency results demonstrated that the proposed filter has high-quality frequency responses in addition to isolated second harmonic frequency. Besides, this filter has very small surface area and perceptible narrow band response features that represent the conditions of recent wireless communication systems. Various filter specifications have been compared with different magnitudes of perturbation element dimension. Furthermore, phase scattering response and current intensity distribution of the proposed filter have been discussed. The simulated and experimental results are well-matched. Lastly, the features of the proposed filter have been compared with other designed microstrip filters in the literature.
Seed-borne pathogens of conifers (Cosepath)
Creators: name: Pérez-Sierra, Ana
Publisher: name: Zenodo
Year: 2021
Subjects: Euphresco, plant health, risk assessment, diagnostics, seed, conifers, fungi

description: Slide of the Euphresco project 2020-A-339 'Seed-borne pathogens of conifers (Cosepath)'
description: Project funded through the Euphresco network
Terradynamically streamlined shapes in animals and robots enhances traversability through densely cluttered terrain
Creators: name: Li, Chen
name: Pullin, Andrew O.
name: Haldane, Duncan W.
name: Lam, Han K.
name: Fearing, Ronald S.
name: Full, Robert J.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Systems and Control (eess.SY)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Physical sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Biological sciences

description: Many animals, modern aircraft, and underwater vehicles use streamlined body shapes that reduce fluid dynamic drag to achieve fast and effective locomotion in air and water. Similarly, numerous small terrestrial animals move through cluttered terrain where 3-D, multi-component obstacles like grass, shrubs, vines, and leaf litter resist motion, but it is unknown whether their body shape plays a major role in traversal. Few ground vehicles or terrestrial robots have used body shape to effectively traverse cluttered terrain. Here, we challenged forest-floor-dwelling discoid cockroaches possessing a thin, rounded body to traverse tall, narrowly spaced, vertical, grass-like compliant beams. Animals displayed high traversal performance (79 +/- 12% probability and 3.4 +/- 0.7 s time). Although we observed diverse traversal strategies, cockroaches primarily (48 +/- 9 % probability) used a novel roll maneuver, allowing them to rapidly traverse obstacle gaps narrower than half body width (2.0 +/- 0.5 s traversal time). Reduction of body roundness by addition of artificial shells nearly inhibited roll maneuvers and decreased traversal performance. Inspired by this discovery, we added a thin, rounded exoskeletal shell to a legged robot with a nearly cuboidal body, common to many existing terrestrial robots. Without adding sensory feedback or changing the open-loop control, the rounded shell enabled the robot to traverse beam obstacles with gaps narrower than shell width via body roll. Terradynamically streamlined shapes can reduce terrain resistance and enhance traversability by assisting effective body reorientation via distributed mechanical feedback. Our findings highlight the need to consider body shape to improve robot mobility in real-world terrain often filled with clutter, and to develop better locomotor-ground contact models to understand interaction with complex terrain.
Lepto-hadronic jet-disc model for the multi-wavelength SED of M87
Creators: name: Boughelilba, Margot
name: Reimer, Anita
name: Merten, Lukas
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The low-luminosity Active Galactic Nuclei M87, archetype of Fanaroff-Riley I radio-galaxies, was observed in a historically quiet state in 2017. While one-zone leptonic jet models alone cannot explain the core radio-to-gamma-ray spectrum, we explore a hybrid jet-disc scenario. In this work, we model the overall spectral energy distribution of M87's core with a dominating one-zone lepto-hadronic jet component, coupled with the contribution from the accretion flow. We find close-to-equipartition parameter sets for which the jet component fits the radio-to-optical data as well as the gamma-ray band, while the accretion flow mainly contributes to the X-ray band. The effects of gamma-ray absorption by the Extragalactic Background Light during the propagation towards Earth are probed and are found to be negligible for this model. The neutrino flux produced by such scenarios is also calculated, but remains below the current instruments' sensitivity.
description: 16 pages, 7 figures, Accepted for publication in ApJ
Isotropic-Nematic transition of long thin hard spherocylinders confined in a quasi-two-dimensional planar geometry
Creators: name: Lagomarsino, Marco Cosentino
name: Dijkstra, Marjolein
name: Dogterom, Marileen
Publisher: name: arXiv
Year: 2003
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We present computer simulations of long thin hard spherocylinders in a narrow planar slit. We observe a transition from the isotropic to a nematic phase with quasi-long-range orientational order upon increasing the density. This phase transition is intrinsically two dimensional and of the Kosterlitz-Thouless type. The effective two-dimensional density at which this transition occurs increases with plate separation. We qualitatively compare some of our results with experiments where microtubules are confined in a thin slit, which gave the original inspiration for this work.
description: 8 pages, 10 figures
More on N=1 Matrix Model Curve for Arbitrary N
Creators: name: Ahn, Changhyun
name: Ookouchi, Yutaka
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Using both the matrix model prescription and the strong-coupling approach, we describe the intersections of n=0 and n=1 non-degenerated branches for quartic (polynomial of adjoint matter) tree-level superpotential in N=1 supersymmetric SO(N)/USp(2N) gauge theories with massless flavors. We also apply the method to the degenerated branch. The general matrix model curve on the two cases we obtain is valid for arbitrary N and extends the previous work from strong-coupling approach. For SO(N) gauge theory with equal massive flavors, we also obtain the matrix model curve on the degenerated branch for arbitrary N. Finally we discuss on the intersections of n=0 and n=1 non-degenerated branches for equal massive flavors.
description: 36pp; to appear in JHEP
Algebras and Hilbert spaces from gravitational path integrals: Understanding Ryu-Takayanagi/HRT as entropy without AdS/CFT
Creators: name: Colafranceschi, Eugenia
name: Dong, Xi
name: Marolf, Donald
name: Wang, Zhencheng
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Recent works by Chandrasekaran, Penington, and Witten have shown in various special contexts that the quantum-corrected Ryu-Takayanagi (RT) entropy (or its covariant Hubeny-Rangamani-Takayanagi (HRT) generalization) can be understood as computing an entropy on an algebra of bulk observables. These arguments do not rely on the existence of a local holographic dual field theory. We show that analogous-but-stronger results hold in any UV-completion of asymptotically AdS quantum gravity with a Euclidean path integral satisfying a simple and (largely) familiar set of axioms. We consider a quantum context in which a standard Lorentz-signature classical bulk limit would have Cauchy slices with asymptotic boundaries $B_L \sqcup B_R$ where both $B_L$ and $B_R$ are compact manifolds without boundary. Our main result is that (the UV-completion of) the quantum gravity path integral defines type I von Neumann algebras ${\cal A}^{B_L}_L$, ${\cal A}^{B_R}_{R}$ of observables acting respectively at $B_L$, $B_R$ such that ${\cal A}^{B_L}_L$, ${\cal A}^{B_R}_{R}$ are commutants. The path integral also defines entropies on ${\cal A}^{B_L}_L, {\cal A}^{B_R}_R$. Positivity of the Hilbert space inner product then turns out to require the entropy of any projection operator to be quantized in the form $\ln N$ for some $N \in {\mathbb Z}^+$ (unless it is infinite). As a result, our entropies can be written in terms of standard density matrices and standard Hilbert space traces. Furthermore, in appropriate semiclassical limits our entropies are computed by the RT-formula with quantum corrections. Our work thus provides a Hilbert space interpretation of the RT entropy. Since our axioms do not severely constrain UV bulk structures, it is plausible that they hold equally well for successful formulations of string field theory, spin-foam models, or any other approach to constructing a UV-complete theory of gravity.
description: 74 pages, 13 figures; v2: minor edits, additional comments, references updated; v3: title slightly modified
Numerical Examination of the Stability of an Exact Two-dimensional Solution for Flux Pile-up Magnetic Reconnection
Creators: name: Hirose, S.
name: Litvinenko, Y.
name: Tanuma, S.
name: Shibata, K.
name: Takahashi, M.
name: Tanigawa, T.
name: Sasaqui, T.
name: Noro, A.
name: Uehara, K.
name: Takahashi, K.
name: Taniguchi, T.
name: Terekhova, Y. A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The Kelvin--Helmholtz (KH) and tearing instabilities are likely to be important for the process of fast magnetic reconnection that is believed to explain the observed explosive energy release in solar flares. Theoretical studies of the instabilities, however, typically invoke simplified initial magnetic and velocity fields that are not solutions of the governing magnetohydrodynamic (MHD) equations. In the present study, the stability of a reconnecting current sheet is examined using a class of exact global MHD solutions for steady state incompressible magnetic reconnection, discovered by Craig & Henton. Numerical simulation indicates that the outflow solutions where the current sheet is formed by strong shearing flows are subject to the KH instability. The inflow solutions where the current sheet is formed by a fast and weakly sheared inflow are shown to be tearing unstable. Although the observed instability of the solutions can be interpreted qualitatively by applying standard linear results for the KH and tearing instabilities, the magnetic field and plasma flow, specified by the Craig--Henton solution, lead to the stabilization of the current sheet in some cases. The sensitivity of the instability growth rate to the global geometry of magnetic reconnection may help in solving the trigger problem in solar flare research.
description: Accepted for publication in ApJ. Associated movie files and a PDF with high-resolution figures are available at http://www.pha.jhu.edu/~shirose/Craig/
The Effects of Florida Motor Carrier Deregulation on Agricultural Transport: The Truck Brokers' Perspective
Creators: name: Steglin, Forrest
name: Steglin, Forrest
Publisher: name: Unknown
Year: 1982
Subjects: subject: Marketing
subject: FOS: Economics and business
subject: Public Economics

description: Agricultural commodity truck brokers were surveyed to ascertain their perceptions of deregulation after Florida totally deregulated its intrastate motor carrier industry. Truck brokers were expected to favorably receive deregulation as it should enhance their value as market coordinators. However, nearly half of the brokers viewed themselves as being harmed by deregulation.
A review of the disc instability model for dwarf novae, soft X-ray transients and related objects
Creators: name: Hameury, Jean-Marie
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: I review the basics of the disc instability model (DIM) for dwarf novae and soft-X-ray transients and its most recent developments, as well as the current limitations of the model, focusing on the dwarf nova case. Although the DIM uses the Shakura-Sunyaev prescription for angular momentum transport, which we know now to be at best inaccurate, it is surprisingly efficient in reproducing the outbursts of dwarf novae and soft X-ray transients, provided that some ingredients, such as irradiation of the accretion disc and of the donor star, mass transfer variations, truncation of the inner disc, etc., are added to the basic model. As recently realized, taking into account the existence of winds and outflows and of the torque they exert on the accretion disc may significantly impact the model. I also discuss the origin of the superoutbursts that are probably due to a combination of variations of the mass transfer rate and of a tidal instability. I finally mention a number of unsolved problems and caveats, among which the most embarrassing one is the modelling of the low state. Despite significant progresses in the past few years both on our understanding of angular momentum transport, the DIM is still needed for understanding transient systems.
description: 20 pages, 9 figures, 1 table. Accepted for publication in Advances in Space Research
Power to the People: Re: Mapping Technology Discourses in Education through Occupy!
Creators: name: Borhani, Maya T.
Publisher: name: The University of British Columbia
Year: 2013

description: This paper addresses technology discourses as they presented themselves at Occupy Vancouver, Fall 2011. Investigating the overlap between what are typically considered technologies in today's digitized world, and older, more hand- and human- based technologies, this paper seeks to re-define what we mean by "technology" and even "education," while documenting some of Occupy Vancouver's distinct creations and social patterns.
Path integral representations for the spin-pinned quantum XXZ chain
Creators: name: Bolina, Oscar
name: Contucci, Pierluigi
name: Nachtergaele, Bruno
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Two discrete path integral formulations for the ground state of a spin-pinned quantum anisotropic XXZ Heisenberg chain are introduced. Their properties are discussed and two recursion relations are proved.
description: 13 pages, typos corrected, few remarkes added. To appear in Markov Processes and Related Fields
Measuring Performance of Dairy Cooperatives
Creators: name: Ling, K. Charles
name: Ling, K. Charles
Publisher: name: Unknown
Year: 2006
Subjects: subject: Agricultural Finance
subject: Livestock Production/Industries
subject: Extra value
subject: extra-value index
subject: cooperative
subject: dairy
subject: performance
subject: merger
subject: size

description: This report revises and simplifies the extra-value approach (developed previously in Research Report 166) for member-producers to evaluate their cooperative's performance. Extra value is defined as net savings after subtracting an interest charge on equity. For comparisons over time and among cooperatives, extra value is expressed as a percentage of operating capital to generate a scale-neutral and mode-neutral, extra-value index for each cooperative or group of cooperatives. The extra-value approach is also used to examine the performance of the surviving cooperatives following mergers and consolidations. The influence of cooperative size on performance is also examined.
Measuring the Performance of Agricultural Cooperatives
Creators: name: Liebrand, Carolyn Betts
name: Liebrand, Carolyn Betts
Publisher: name: Unknown
Year: 2007
Subjects: subject: Crop Production/Industries
subject: Demand and Price Analysis
subject: Livestock Production/Industries
subject: Extra value
subject: extra-value index
subject: cooperative
subject: cotton
subject: dairy
subject: farm supply
subject: fruit
subject: and vegetable
subject: grain
subject: sugar
subject: performance

description: Extra value is calculated for 65 agricultural cooperatives by subtracting an interest charge on equity from net savings and also expressed as a percentage of operating capital. Cooperative performance is examined by type of agricultural cooperative— cotton, dairy, farm supply, fruit and vegetable, grain, sugar, and other—for 1992-96 and 2000-04. At least one cooperative of each type (except for sugar cooperatives) was able to show positive extra value when equity was assigned a charge 10 percent above the basic rate, while there were cooperatives of each type that showed negative extra value at the basic charge for member capital. Dairy cooperatives represented one-half of the top performers, while fruit and vegetable cooperatives represented onehalf of those with negative extra value in both time periods. Results showed that cooperatives of all types can be very able performers but that some cooperatives may not be fully rewarding members for the use of their equity.
Whey to Ethanol: A Biofuel Role for Dairy Cooperatives?
Creators: name: Ling, K. Charles
name: Ling, K. Charles
Publisher: name: Unknown
Year: 2008
Subjects: subject: Livestock Production/Industries
subject: Resource /Energy Economics and Policy
subject: Whey
subject: whey permeate
subject: permeate mother liquor
subject: lactose
subject: ethanol
subject: dairy
subject: cooperatives

description: Pertinent information regarding whey-to-fuel ethanol production is explored and reviewed. A potential of producing up to 203 million gallons of fuel ethanol from whey in 2006 was estimated, and dairy cooperatives could have a share of 65 million gallons. Two whey-ethanol plants are currently operated by dairy cooperatives, producing a total of 8 million gallons a year. Successful operations of the plants since the 1980s indicate that (1) fuel ethanol production from whey is technically feasible, (2) whey-tofuel ethanol production technologies and processes are mature and capable of being adopted for commercial operations, and (3) producing fuel ethanol from whey is economically feasible. However, in this era of whey products' price uncertainties, a key consideration in assessing the feasibility of a new whey-ethanol venture should be the valuation of the opportunity cost of whey as feedstock for fermentation. A new wheyethanol plant probably should have an annual production capacity of at least 5 million gallons of ethanol. Some historical lessons on the pitfalls to avoid are summarized.
Dynamical tidal Love numbers of Kerr-like compact objects
Creators: name: Chakraborty, Sumanta
name: Maggio, Elisa
name: Silvestrini, Michela
name: Pani, Paolo
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We develop a framework to compute the tidal response of a Kerr-like compact object in terms of its reflectivity, compactness, and spin, both in the static and the frequency-dependent case. Here we focus on the low-frequency regime, which can be solved fully analytically. We highlight some remarkable novel features, in particular: i) Even in the zero-frequency limit, the tidal Love numbers (TLNs) depend on the linear-in-frequency dependence of the object's reflectivity in a nontrivial way. ii) Intriguingly, the static limit of the frequency-dependent TLNs is discontinuous, therefore the static TLNs differ from the static limit of the (phenomenologically more interesting) frequency-dependent TLNs. This shows that earlier findings regarding the static TLNs of ultracompact objects correspond to a measure-zero region in the parameter space, though the logarithmic behavior of the TLNs in the black hole limit is retained. iii) In the non-rotating case, the TLNs generically vanish in the zero-frequency limit (just like for a black hole), except when the reflectivity is ${\cal R}=1+{\cal O}(Mω)$, in which case they vanish with a model-dependent scaling, which is generically logarithmic, in the black-hole limit. The TLNs initially grow with frequency, for any nonzero reflectivity, and then display oscillations and resonances tied up with the quasi-normal modes of the object. iv) For rotating compact objects, the TLNs decrease when the reflectivity decreases or the rotation parameter increases. Our results lay the theoretical groundwork to develop model-independent tests of the nature of compact objects using tidal effects in gravitational-wave signals.
description: 15+ 11 pages, 7 figures; v2: minor comments
The EDGE-CALIFA survey: The role of spiral arms and bars in driving central molecular gas concentrations
Creators: name: Yu, Si-Yue
name: Kalinova, Veselina
name: Colombo, Dario
name: Bolatto, Alberto D.
name: Wong, Tony
name: Levy, Rebecca C.
name: Villanueva, Vicente
name: Sánchez, Sebastián F.
name: Ho, Luis C.
name: Vogel, Stuart N.
name: Teuben, Peter
name: Rubio, Mónica
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Shocks and torques produced by non-axisymmetric structures such as spiral arms and bars may transport gas to galaxy central regions. We test this hypothesis by studying the dependence of concentration of CO luminosity ($C_{CO}$), molecular gas ($C_{mol}$), and star formation rate ($C_{SFR}$) in central $\sim$ 2 kpc on the $strength$ of non-axisymmetric disk structure using a sample of 57 disk galaxies selected from the EDGE-CALIFA survey. $C_{mol}$ is calculated using a CO-to-H$_2$ conversion factor that decreases with higher metallicity and higher stellar surface density. We find that $C_{mol}$ is systematically 0.22 dex lower than $C_{CO}$. We confirm that high $C_{mol}$ and strong non-axisymmetric disk structure are more common in barred galaxies than in unbarred galaxies. However, we find that spiral arms also increase $C_{mol}$. We show that there is a good correlation between $C_{mol}$ and the $strength$ of non-axisymmetric structure (which can be due to a bar, spiral arms, or both). This suggests that the stronger the bars and spirals, the more efficient the galaxy is at transporting cold gas to its center. Despite the small subsample size, $C_{mol}$ of the four Seyferts are not significantly reduced compared to inactive galaxies of similar disk structure, implying that the AGN feedback in Seyferts may not notably affect the molecular gas distribution in the central $\sim$2kpc. We find that $C_{SFR}$ tightly correlates with $C_{mol}$ in both unbarred and barred galaxies. Likewise, elevated $C_{SFR}$ is found in galaxies with strong disk structure. Our results suggest that the disk structure, either spirals or bars, can transport gas to the central regions, with higher inflow rates corresponding to stronger structure, and consequently boost central star formation. Both spirals and bars play, therefore, an essential role in the secular evolution of disk galaxies.
description: 24 pages; accepted for publication in Astronomy & Astrophysics; typos corrected
Zeeman energy and spin relaxation in a one-electron quantum dot
Creators: name: Hanson, R.
name: Witkamp, B.
name: Vandersypen, L. M. K.
name: van Beveren, L. H. Willems
name: Elzerman, J. M.
name: Kouwenhoven, L. P.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We have measured the relaxation time, T1, of the spin of a single electron confined in a semiconductor quantum dot (a proposed quantum bit). In a magnetic field, applied parallel to the two-dimensional electron gas in which the quantum dot is defined, Zeeman splitting of the orbital states is directly observed by measurements of electron transport through the dot. By applying short voltage pulses, we can populate the excited spin state with one electron and monitor relaxation of the spin. We find a lower bound on T1 of 50 microseconds at 7.5 T, only limited by our signal-to-noise ratio. A continuous measurement of the charge on the dot has no observable effect on the spin relaxation.
description: Replaced with the version published in Phys. Rev. Lett
Selecting a Cooperative Membership Structure for the Agriculture-of-the- Middle Initiative
Creators: name: Gray, Thomas W.
name: Gray, Thomas W.
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agricultural Finance
subject: Farm Management
subject: agriculture-of-the-middle
subject: cooperatives
subject: mid-size farms
subject: disappearing middle
subject: sustainability
subject: federated cooperatives

description: This study explores choices of cooperative structure — local, centralized, or federated — for mid-size farms, also referred to as the “agriculture-of-the-middle” (AOTM) or farms of “the disappearing middle.” They are referred to as “in the middle” structurally (in terms of numbers and production output) because they are positioned between large industrialized farms and much smaller farms located near metropolitan areas. The largest farms have increased in numbers as well in the proportion of total U.S. farms..These farms fit the large-scale, industrialized and commodity-production farm model. The smallest farms have increased in numbers and output as well and are generally specialized for “local” and organic markets. The financial stability of many farms in the middle is tenuous. They generally have both too much output and are too distant from metropolitan areas to take advantage of the niche markets that the smallest farms have been able to access. While further industrialization and increasing scale may be an option for some, for most it is not desired and/or possible financially. “Middle farms” are a focus for different interest groups-including farmers, food wholesalers and retailers, university and government personnel, non-government organizations (NGOs), independent certification organizations and rural and community development experts- -seeking to protect and expand farm viability. Their strategies are generally organized to develop niche-specified, differentiated products that encompass various sustainability agendas (economic, social, and environmental sustainability). These initiatives are, in fact, budding collective actions that seek to mobilize AOTM farmers for survival. This report argues that the historical conditions setting the context for this mobilization cannot be taken lightly. The report, therefore, reviews the historically based changes that have occurred in the agricultural context--i.e., shifts in agricultural production, changes in agribusiness complexity, and changes in consumption patterns--and understands these changes as the historically set conditions that the AOTM initiatives must accommodate in their development strategies. From this socio-historical context, the paper assesses different cooperative membership structures--local, centralized, and federated-- for their appropriateness to the collective action initiatives of the mid-level farms.
'Rocket propulsion' of Janus micro-swimmers
Creators: name: Eloul, Shaltiel
name: Poon, Wilson C K
name: Farago, Oded
name: Frenkel, Daan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We report simulations of a spherical Janus particle undergoing exothermic surface reactions around one pole only. Our model excludes self-phoretic transport by design. Nevertheless, net motion occurs from direct momentum transfer between solvent and colloid, with speed scaling as the square root of the energy released during the reaction. We find that such propulsion is dominated by the system's short-time response, when neither the time dependence of the flow around the colloid nor the solvent compressibility can be ignored. Our simulations agree reasonably well with previous experiments.
EDUCATING SECONDARY SCHOOL STUDENTS ON PATRIOTISM THROUGH EXPERIENTIAL ACTIVITIES AND CAREER ORIENTATION
Creators: name: Nguyễn Thị Gấm
Publisher: name: Sciences of Europe
Year: 2021
Subjects: Career oriented activities
secondary schools
patriotism
educating
student.

description: In this article, the author has referred to expressions of patriotism presented in the general education program 2018 of Vietnam and the main contents of educating secondary school students on patriotism through experiential activities and career
BASS XXXVII: The role of radiative feedback in the growth and obscuration properties of nearby supermassive black holes
Creators: name: Ricci, C.
name: Ananna, T. T.
name: Temple, M. J.
name: Urry, C. M.
name: Koss, M. J.
name: Trakhtenbrot, B.
name: Ueda, Y.
name: Stern, D.
name: Bauer, F. E.
name: Treister, E.
name: Privon, G. C.
name: Oh, K.
name: Paltani, S.
name: Stalevski, M.
name: Ho, L. C.
name: Fabian, A. C.
name: Mushotzky, R.
name: Chang, C. S.
name: Ricci, F.
name: Kakkad, D.
name: Sartori, L.
name: Baer, R.
name: Caglar, T.
name: Powell, M.
name: Harrison, F.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We study the relation between obscuration and supermassive black hole (SMBH) growth using a large sample of hard X-ray selected Active Galactic Nuclei (AGN). We find a strong decrease in the fraction of obscured sources above the Eddington limit for dusty gas ($\log λ_{\rm Edd}\gtrsim -2$) confirming earlier results, and consistent with the radiation-regulated unification model. This also explains the difference in the Eddington ratio distribution functions (ERDFs) of type 1 and type 2 AGN obtained by a recent study. The break in the ERDF of nearby AGN is at $\log λ_{\rm Edd}^{*}=-1.34\pm0.07$. This corresponds to the $λ_{\rm Edd}$ where AGN transition from having most of their sky covered by obscuring material to being mostly devoid of absorbing material. A similar trend is observed for the luminosity function, which implies that most of the SMBH growth in the local Universe happens when the AGN is covered by a large reservoir of gas and dust. These results could be explained with a radiation-regulated growth model, in which AGN move in the $N_{\rm H}-λ_{\rm Edd}$ plane during their life cycle. The growth episode starts with the AGN mostly unobscured and accreting at low $λ_{\rm Edd}$. As the SMBH is further fueled, $λ_{\rm Edd}$, $N_{\rm H}$ and covering factor increase, leading AGN to be preferentially observed as obscured. Once $λ_{\rm Edd}$ reaches the Eddington limit for dusty gas, the covering factor and $N_{\rm H}$ rapidly decrease, leading the AGN to be typically observed as unobscured. As the remaining fuel is depleted, the SMBH goes back into a quiescent phase.
description: Accepted for publication in ApJ
Cooperative Approaches for Implementation of Dairy Manure Digesters
Creators: name: Liebrand, Carolyn Betts
name: Ling, K. Charles
name: Liebrand, Carolyn Betts
name: Ling, K. Charles
Publisher: name: Unknown
Year: 2009
Subjects: subject: Livestock Production/Industries
subject: Resource /Energy Economics and Policy
subject: Anaerobic digestion
subject: biogas
subject: cooperatives
subject: carbon credits
subject: dairy
subject: methane
subject: renewable energy

description: Anaerobic digestion of dairy manure produces biogas that can be captured and used for fuel while offering environmental benefits. Dairy farmer use of anaerobic digesters is not widespread due to various challenges, including high costs and inadequate return. A cooperative approach could address the challenges through improved negotiating strength; technical assistance for digester design, installation, and operation; management and marketing services; and/or financial guidance and assistance. Cooperative efforts may allow milk producers to remain focused on milk production while lowering costs and/or increasing returns from energy and byproduct sales.