cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Proceedings of Workshop on Farm Sector Financial Accounts, April 14-15, 1977
Creators: name: Economics, Statistics
name: Economics, Statistics
Publisher: name: Unknown
Year: 1978
Subjects: Agricultural and Food Policy
Agricultural Finance

description: Excerpt from the report Preface: Authors of the major papers discussed the role of the existing farm sector financial accounts, the Balance Sheet of the Farming Sector and the Farm Income Statement, Cash Sources and Uses of Funds Statements, and some additional farm sector accounts which have been proposed in the literature and, in some cases, published by USDA. These new accounts include the Capital Finance and Capital Flows accounts and Personal Income and Outlay Statements. In the concluding paper, as well as the general discussion, author and discussants focused on how the entire system of farm sector financial accounts is interrelated and what new directions are needed.
The clumpy structure of $ε$ Eridani's debris disc revisited by ALMA
Creators: name: Booth, Mark
name: Pearce, Tim D.
name: Krivov, Alexander V.
name: Wyatt, Mark C.
name: Dent, William R. F.
name: Hales, Antonio S.
name: Lestrade, Jean-François
name: de Miera, Fernando Cruz-Sáenz
name: Faramaz, Virginie C.
name: Löhne, Torsten
name: Chavez-Dagostino, Miguel
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: $ε$ Eridani is the closest star to our Sun known to host a debris disc. Prior observations in the (sub-)millimetre regime have potentially detected clumpy structure in the disc and attributed this to interactions with an (as yet) undetected planet. However, the prior observations were unable to distinguish between structure in the disc and background confusion. Here we present the first ALMA image of the entire disc, which has a resolution of 1.6"$\times$1.2". We clearly detect the star, the main belt and two point sources. The resolution and sensitivity of this data allow us to clearly distinguish background galaxies (that show up as point sources) from the disc emission. We show that the two point sources are consistent with background galaxies. After taking account of these, we find that resolved residuals are still present in the main belt, including two clumps with a $>3σ$ significance -- one to the east of the star and the other to the northwest. We perform $n$-body simulations to demonstrate that a migrating planet can form structures similar to those observed by trapping planetesimals in resonances. We find that the observed features can be reproduced by a migrating planet trapping planetesimals in the 2:1 mean motion resonance and the symmetry of the most prominent clumps means that the planet should have a position angle of either ${\sim10^\circ}$ or ${\sim190^\circ}$. Observations over multiple epochs are necessary to test whether the observed features rotate around the star.
description: 16 pages, 10 figures, accepted for publication in MNRAS
The Discovery of a New Instability in a Hyperaccretion Flow and its Implication for Gamma-ray Bursts
Creators: name: Kawanaka, Norita
name: Mineshige, Shin
name: Piran, Tsvi
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: A hyperaccretion flow around a stellar mass black hole is thought to be the most plausible engine that powers gamma-ray bursts (GRBs). The flow efficiently cools via neutrino emission at >~ 0.003-0.01 M_sun s^{-1} (corresponding to a luminosity of ~10^50 erg s^{-1}), while neither neutrino nor photon emission is efficient below this rate, so the flow should be advection dominated. We carefully solve how a transition occurs from the advection-dominated to the neutrino-dominated branches, and find that the slope of the thermal equilibrium curve is negative in the surface density - accretion rate (Sigma-Mdot) plane, a condition for viscous instability, at radii smaller than ~12R_g (with R_g being the gravitational radius). We also confirm that the flow is thermally stable. The consequence of this instability is the formation of a clumpy structure in the flow. This is because the larger (respectively smaller) surface density is, the smaller (respectively larger) the mass accretion rate from the region in question becomes, leading to growth of the density contrast. The timescale for clump formation is estimated to be shorter than 0.1s. The observational implication is discussed in the context of GRBs. We suggest that this might explain the origin of the large variability observed in the prompt emission of GRBs.
description: 13 pages, 3 figures, ApJL in press
On the dearth of C-enhanced metal-poor stars in the Galactic bulge
Creators: name: Pagnini, Giulia
name: Salvadori, Stefania
name: Rossi, Martina
name: Aguado, David
name: Koutsouridou, Ioanna
name: Skúladóttir, Ása
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The chemical fingerprints of the first stars are retained within the photospheres of ancient unevolved metal-poor stars. A significant fraction of these stellar fossils is represented by stars known as Carbon-Enhanced Metal-Poor (CEMP), $\rm [C/Fe]>+0.7$ and $\rm [Fe/H]<-2$, which are likely imprinted by low-energy primordial supernovae. These CEMP stars are largely observed in the Galactic halo and ultra-faint dwarf galaxies, with values reaching $\rm [C/Fe]=+4.5$. The Galactic bulge is predicted to host the oldest stars, but it shows a striking dearth of CEMP stars with $\rm [C/Fe]\gtrsim +2.0$. Here we explore the possible reasons for this anomaly by performing a statistical analysis of the observations of metal-poor stars in combination with the predictions of $Λ$CDM models. We suggest that the dearth of CEMP stars with high $\rm [C/Fe]$ is not due to the low statistics of observed metal-poor stars but is the result of the different formation process of the bulge. $N$-body simulations show that the first star-forming halos which end up in the bulge are characterized by the highest star-formation rates. These rates enable the formation of rare massive first stars exploding as pair-instability supernovae (PISNe), which wash out the signature of primordial faint supernovae. We demonstrate that the mean $\rm [C/Fe]$ of first stars polluted environments decreases with the increasing contribution of PISNe. We conclude that the dearth of CEMP stars in the Galactic bulge indirectly probes the existence of elusive PISNe, and propose a novel method which exploits this lack to constrain the mass distribution of the first stars.
A Fog Computing Framework For Big Stream Real-time IoT Applications
Creators: name: Mwangama, Joyce
name: Chirindo, Tasimba
Publisher: name: University of Cape Town
Year: 2024
Subjects: classificationCode: 400602
subject: Data communications

description: Cloud computing provides unlimited on-demand computing, storage and networking power for industry to leverage. However, as its scale and scope continues to expand, its limitations like high latency, accessibility, security and compliance shortcomings prevent its greater use and applicability particularly in scenarios where real-time communication and the quality of rapid computing delivered is a necessity. Fog computing hopes to bridge this gap by introducing an intermediary computing layer between smart IoT devices and the cloud. Currently, these ideas exist in specialised areas with current implementations being proprietary, vendor-locked and requiring dramatic and non-transferable changes to hardware and software to meet vendor requirements. Moreover, fog computing is still quite a recent area which makes the state of the art incipient regarding architecture definitions, middleware and real-world implementations. This research proposes a fog computing architecture that is built off the alignment of the reference architectures from a leading industry consortium, OpenFog, and a leading standards setting organization, ETSI. The proposed architecture has the following attributes: modular, plug-in design, generic, open, standards compliant, vendor agnostic and runs on high volume standard hardware whilst preserving the benefits offered by public clouds.
3D Radiative Transfer Modelling and Virial Analysis of Starless Cores in the B10 Region of the Taurus Molecular Cloud
Creators: name: Scibelli, Samantha
name: Shirley, Yancy
name: Schmiedeke, Anika
name: Svoboda, Brian
name: Singh, Ayushi
name: Lilly, James
name: Caselli, Paola
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Low-mass stars like our Sun begin their evolution within cold (10 K) and dense ($\sim 10^5$ cm$^{-3}$) cores of gas and dust. The physical structure of starless cores is best probed by thermal emission of dust grains. We present a high resolution dust continuum study of the starless cores in the B10 region of the Taurus Molecular Cloud. New observations at 1.2mm and 2.0mm ($12^{"}$ and $18^{"}$ resolution) with the NIKA2 instrument on the IRAM 30m have probed the inner regions of 14 low-mass starless cores. We perform sophisticated 3D radiative transfer modelling for each of these cores through the radiative transfer framework $\textit{pandora}$, which utilizes RADMC-3D. Model best-fits constrain each cores' central density, density slope, aspect ratio, opacity, and interstellar radiation field strength. These `typical' cores in B10 span central densities from $5 \times 10^4 - 1 \times 10^6$ cm$^{-3}$, with a mean value of $2.6 \times 10^5$ cm$^{-3}$. We find the dust opacity laws assumed in the 3D modelling, as well as the estimates from $\textit{Herschel}$, have dust emissivity indices, $β$'s, on the lower end of the distribution constrained directly from the NIKA2 maps, which averages to $β= 2.01\pm0.48$. From our 3D density structures and archival NH$_3$ data, we perform a self-consistent virial analysis to assess each core's stability. Ignoring magnetic field contributions, we find 9 out of the 14 cores ($64\%$) are either in virial equilibrium or are bound by gravity and external pressure. To push the bounded cores back to equilibrium, an effective magnetic field difference of only $\sim 15 μ$G is needed.
description: Accepted to MNRAS. 19 pages, 20 figures
Latilactobacillus sakei subsp. sakei SAKEI SUBSP. SAKEI 2020, COMB. NOV.
Creators: name: Zheng, Jinshui
name: Wittouck, Stijn
name: Salvetti, Elisa
name: Franz, Charles M. A. P.
name: Harris, Hugh M. B.
name: Mattarelli, Paola
name: O'Toole, Paul W.
name: Pot, Bruno
name: Vandamme, Peter
name: Walter, Jens
name: Watanabe, Koichi
name: Wuyts, Sander
name: Felis, Giovanna E.
name: Gänzle, Michael G.
name: Lebeer, Sarah
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Bacteria
Firmicutes
Bacilli
Lactobacillales
Lactobacillaceae
Latilactobacillus
Latilactobacillus sakei
Latilactobacillus sakei subsp. sakei

description: DESCRIPTION OF LATILACTOBACILLUS SAKEI SUBSP. SAKEI COMB. NOV.
Latilactobacillus sakei subsp. sakei (sa’ke.i. N.L. gen. n. sakei of sake).
Basonym: Lactobacillus sakei subsp. sakei corrig. Katagiri, Kitahara and Fukami 1934, 157 (Approved Lists); emend. Klein etal., 1996
L. sakei subsp. sakei strains produce ammonia from arginine and acetoin from glucose and they grow inthe presence of 10 % NaCl. The genome size of the type strain is 1.91 Mbp. The mol% G+C content of DNAis 41.1.
Isolated from sakestarter, fermented meat products, vacuumpackaged meat, sauerkraut and other fermented plant material, and human faeces [183].
Thetypestrainis T.S [K. Kitahara 37] T = ATCC 15521 T = LMG 9468 T = DSM 20017 T =CCUG 30501 T = CIP 103139 T =IFO (now NBRC) 15893 T = JCM 1157 T.
Genome sequence accession number: AZDN00000000.
16S rRNA gene accession number: AM113784.
description: Published as part of Zheng, Jinshui, Wittouck, Stijn, Salvetti, Elisa, Franz, Charles M. A. P., Harris, Hugh M. B., Mattarelli, Paola, O'Toole, Paul W., Pot, Bruno, Vandamme, Peter, Walter, Jens, Watanabe, Koichi, Wuyts, Sander, Felis, Giovanna E., Gänzle, Michael G. & Lebeer, Sarah, 2020, A taxonomic note on the genus Lactobacillus: Description of 23 novel genera, emended description of the genus Lactobacillus Beijerinck 1901, and union of Lactobacillaceae and Leuconostocaceae, pp. 2782-2858 in International Journal of Systematic and Evolutionary Microbiology 70 on pages 2815-2816, DOI: 10.1099/ijsem.0.004107, http://zenodo.org/record/4730536
The effect of variations in magnetic field direction from turbulence on kinetic-scale instabilities
Creators: name: Opie, Simon
name: Verscharen, Daniel
name: Chen, Christopher H. K.
name: Owen, Christopher J.
name: Isenberg, Philip A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Plasma Physics (physics.plasm-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: At kinetic scales in the solar wind, instabilities transfer energy from particles to fluctuations in the electromagnetic fields while restoring plasma conditions towards thermodynamic equilibrium. We investigate the interplay between background turbulent fluctuations at the small-scale end of the inertial range and kinetic instabilities acting to reduce proton temperature anisotropy. We analyse in-situ solar wind observations from the Solar Orbiter mission to develop a measure for variability in the magnetic field direction. We find that non-equilibrium conditions sufficient to cause micro-instabilities in the plasma coincide with elevated levels of variability. We show that our measure for the fluctuations in the magnetic field is non-ergodic in regions unstable to the growth of temperature anisotropy-driven instabilities. We conclude that the competition between the action of the turbulence and the instabilities plays a significant role in the regulation of the proton-scale energetics of the solar wind. This competition depends not only on the variability of the magnetic field but also on the spatial persistence of the plasma in non-equilibrium conditions.
description: To be published in Astronomy & Astrophysics
Universal scaling at non-thermal fixed points of a two-component Bose gas
Creators: name: Karl, Markus
name: Nowak, Boris
name: Gasenzer, Thomas
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quasi-stationary far-from-equilibrium critical states of a two-component Bose gas are studied in two spatial dimensions. After the system has undergone an initial dynamical instability it approaches a non-thermal fixed point. At this critical point the structure of the gas is characterised by ensembles of (quasi-)topological defects such as vortices, skyrmions and solitons which give rise to universal power-law behaviour of momentum correlation functions. The resulting power-law spectra can be interpreted in terms of strong-wave-turbulence cascades driven by particle transport into long-wave-length excitations. Scaling exponents are determined on both sides of the miscible-immiscible transition controlled by the ratio of the intra-species to inter-species couplings. Making use of quantum turbulence methods, we explain the specific values of the exponents from the presence of transient (quasi-)topological defects.
description: 13 pages, 12 figures
Gerbillus tarabuli Thomas 1902
Creators: name: Musser, Guy G.
name: Carleton, Michael D.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Muridae
Gerbillus
Gerbillus tarabuli

description: Gerbillus tarabuli Thomas, 1902. Proc. Zool. Soc. London, 1902:5. TYPE LOCALITY: Libya, Sebha. DISTRIBUTION: Libya. SYNONYMS: hamadensis. COMMENTS: Usually listed as a synonym of G. pyramidutn, G. tarabuli can be distinguished by morphological traits (Lay et al., 1975). Future inquiry, according to Lay (1983:347) "should examine the possibility that the 2N = 40...forms reported from Tunisia, Algeria, Morocco and Senegal...are conspecific and may be referable to G. tarabuli ."
description: Published as part of Guy G. Musser & Michael D. Carleton, 1993, Order Rodentia - Family Muridae, pp. 501-755 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 555, DOI: 10.5281/zenodo.7353098
description: {"references": ["Lay, D. M. 1983. Taxonomy of the genus Gerbillus (Rodentia: Gerbillinae) with comments on the applications of generic and subgeneric names and an annotated list of species. Zeitschrift fur Saugetierkunde, 48: 329 - 354."]}
Multi-Microgrid Collaborative Optimization Scheduling Using an Improved Multi-Agent Soft Actor-Critic Algorithm
Creators: name: Gao, Jiankai
name: Li, Yang
name: Wang, Bin
name: Wu, Haibo
Publisher: name: arXiv
Year: 2023
Subjects: subject: Systems and Control (eess.SY)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: The implementation of a multi-microgrid (MMG) system with multiple renewable energy sources enables the facilitation of electricity trading. To tackle the energy management problem of a MMG system, which consists of multiple renewable energy microgrids belonging to different operating entities, this paper proposes a MMG collaborative optimization scheduling model based on a multi-agent centralized training distributed execution framework. To enhance the generalization ability of dealing with various uncertainties, we also propose an improved multi-agent soft actor-critic (MASAC) algorithm, which facilitates en-ergy transactions between multi-agents in MMG, and employs automated machine learning (AutoML) to optimize the MASAC hyperparameters to further improve the generalization of deep reinforcement learning (DRL). The test results demonstrate that the proposed method successfully achieves power complementarity between different entities, and reduces the MMG system operating cost. Additionally, the proposal significantly outperforms other state-of-the-art reinforcement learning algorithms with better economy and higher calculation efficiency.
description: Accepted by Energies
ΜΟΧΕ: «Κίτελ, Ρούντολφ», τόμ. 10, σ. 77.
Creators: name: Vasileiadis, Pavlos D.
Publisher: name: Zenodo
Year: 2014
Subjects: Rudolf Kittel
Ρούντολφ Κίτελ
Παύλος Βασιλειάδης
Pavlos Vasileiadis

description: English title: “Kittel, Rudolf,” Encyclopedia ΜΟΧΕ vol. 10, p. 77.
TraceUpscaler: Upscaling Traces to Evaluate Systems at High Load
Creators: name: Sajal, Sultan Mahmud
Publisher: name: Zenodo
Year: 2024

description: Trace replay is a common approach for evaluating systems by rerunning historical traffic patterns, but it is not always possible to find suitable real-world traces at the desired level of system load. Experimenting with higher traffic loads requires upscaling a trace to artificially increase the load. Unfortunately, most prior research has adopted ad-hoc approaches for upscaling, and there has not been a systematic study of how the upscaling approach impacts the results. One common approach is to count the arrivals in a predefined time-interval and multiply these counts by a factor, but this requires generating new requests/jobs according to some model (e.g., a Poisson process), which may not be realistic. Another common approach is to divide all the timestamps in the trace by an upscaling factor to squeeze the requests into a shorter time period. However, this can distort temporal patterns within the input trace. This paper evaluates the pros and cons of existing trace upscaling techniques and introduces a new approach, TraceUpscaler, that avoids the drawbacks of existing methods. The key idea behind TraceUpscaler is to decouple the arrival timestamps from the request parameters/data and upscale just the arrival timestamps in a way that preserves temporal patterns within the input trace. Our work applies to open-loop traffic where requests have arrival timestamps that aren't dependent on previous request completions. We evaluate TraceUpscaler under multiple experimental settings using both real-world and synthetic traces. Through our study, we identify the trace characteristics that affect the quality of upscaling in existing approaches and show how TraceUpscaler avoids these pitfalls. We also present a case study demonstrating how inaccurate trace upscaling can lead to incorrect conclusions about a system's ability to handle high load.
L'impact du contrôle financier de l'état sur la responsabilité sociétale des Entreprises et des Etablissements Publics marocaines
Creators: name: MERCHICH, Ismail
name: EL ABIDI AMINE, Kaoutar
Publisher: name: Zenodo
Year: 2024
Subjects: Responsabilité Sociétale des Entreprises (RSE); Entreprises et Établissements Publics (EEP); Contrôle Financier de l'État; Développement Durable

description: Cet article examine l'impact du contrôle financier de l'État sur la responsabilité sociétale des entreprises (RSE) et des établissements publics (EEP) marocains, dans le contexte des engagements du Maroc dans le développement durable. À travers une analyse documentaire exploratoire, l'étude montre que les contrôles d'accompagnement et conventionnels favorisent une performance sociétale positive, en intégrant des dimensions sociales, financières et organisationnelles. Il en résulte que, le contrôle préalable a un impact négatif sur la RSE des EEP. L'article propose des réformes pour rendre les contrôles plus flexibles et orientés vers l'accompagnement, afin de renforcer la contribution des EEP aux objectifs de développement durable au Maroc.
An Updated View of Solar Eruptive Flares and Development of Shocks and CMEs: History of the 2006 December 13 GLE-Productive Extreme Event
Creators: name: Grechnev, V.
name: Kiselev, V.
name: Uralov, A.
name: Meshalkina, N.
name: Kochanov, A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: An extreme 2006 December 13 event marked the onset of the Hinode era being the last major flare in the solar cycle 23 observed with NoRH and NoRP. The event produced a fast CME, strong shock, and big particle event responsible for GLE70. We endeavor to clarify relations between eruptions, shock wave, and the flare, and to shed light on a debate over the origin of energetic protons. One concept relates it with flare processes. Another one associates acceleration of ions with a bow shock driven by a CME at (2-4)R_sun. The latter scenario is favored by a delayed particle release time after the flare. However, our previous studies have established that a shock wave is typically excited by an impulsively erupting magnetic rope (future CME core) during the flare rise, while the outer CME surface evolves from an arcade whose expansion is driven from inside. Observations of the 2006 December 13 event reveal two shocks following each other, whose excitation scenario contradicts the delayed CME-driven bow-shock hypothesis. Actually, the shocks developed much earlier, and could accelerate protons still before the flare peak. Then, the two shocks merged into a single stronger one and only decelerated and dampened long afterwards.
description: 20 pages, 15 figures. Accepted for publication in PASJ
Quantum entanglement for continuous variables sharing in an expanding spacetime
Creators: name: Li, Wen-Mei
name: Wang, Rui-Di
name: Wu, Hao-Yu
name: Huang, Xiao-Li
name: Zen, Hao-Sheng
name: Wu, Shu-Min
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Detecting the structure of spacetime with quantum technologies has always been one of the frontier topics of relativistic quantum information. Here, we analytically study the generation and redistribution of Gaussian entanglement of the scalar fields in an expanding spacetime. We consider a two-mode squeezed state via a Gaussian amplification channel that corresponds to the time-evolution of the state from the asymptotic past to the asymptotic future. Therefore, the dynamical entanglement of the Gaussian state in an expanding universe encodes historical information about the underlying spacetime structure, suggesting a promising application in observational cosmology. We find that quantum entanglement is more sensitive to the expansion rate than the expansion volume. According to the analysis of quantum entanglement, choosing the particles with the smaller momentum and the optimal mass is a better way to extract information about the expanding universe. These results can guide the simulation of the expanding universe in quantum systems.
description: 17 pages, 4 figures
Gerbillus vivax
Creators: name: Musser, Guy G.
name: Carleton, Michael D.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Muridae
Gerbillus
Gerbillus vivax

description: Gerbillus vivax (Thomas, 1902). Proc. Zool. Soc. London, 1902:8. TYPE LOCALITY: Libya, Sebha. DISTRIBUTION: Libya. COMMENTS: Variously placed in either G. dasyurus, G. amoenus, or G. nanus, but Lay (1983) disputed its association with G. dasyurus and urged that its level of relationship to G. amoenus and G. nanus be assessed by systematic revision.
description: Published as part of Guy G. Musser & Michael D. Carleton, 1993, Order Rodentia - Family Muridae, pp. 501-755 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 555, DOI: 10.5281/zenodo.7353098
description: {"references": ["Lay, D. M. 1983. Taxonomy of the genus Gerbillus (Rodentia: Gerbillinae) with comments on the applications of generic and subgeneric names and an annotated list of species. Zeitschrift fur Saugetierkunde, 48: 329 - 354."]}
Hairy planar black holes in higher dimensions
Creators: name: Acena, Andres
name: Anabalon, Andres
name: Astefanesei, Dumitru
name: Mann, Robert
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct exact hairy planar black holes in D-dimensional AdS gravity. These solutions are regular except at the singularity and have stress-energy that satisfies the null energy condition. We present a detailed analysis of their thermodynamical properties and show that the first law is satisfied. We also discuss these solutions in the context of AdS/CFT duality and construct the associated c-function.
description: 18 pages, no figures; v2: title changed, typos fixed
Ultracool dwarfs candidates based on six years of the Dark Energy Survey data
Creators: name: Ponte, M. dal
name: Santiago, B.
name: Rosell, A. Carnero
name: De Paris, L.
name: Pace, A. B.
name: Bechtol, K.
name: Abbott, T. M. C.
name: Aguena, M.
name: Allam, S.
name: Alves, O.
name: Bacon, D.
name: Bertin, E.
name: Bocquet, S.
name: Brooks, D.
name: Burke, D. L.
name: Kind, M. Carrasco
name: Carretero, J.
name: Conselice, C.
name: Costanzi, M.
name: Desai, S.
name: De Vicente, J.
name: Doel, P.
name: Everett, S.
name: Ferrero, I.
name: Flaugher, B.
name: Frieman, J.
name: García-Bellido, J.
name: Gerdes, D. W.
name: Gruendl, R. A.
name: Gruen, D.
name: Gutierrez, G.
name: Hinton, S. R.
name: Hollowood, D. L.
name: James, D. J.
name: Kuehn, K.
name: Kuropatkin, N.
name: Marshall, J. L.
name: Mena-Fernández, J.
name: Menanteau, F.
name: Miquel, R.
name: Ogando, R. L. C.
name: Palmese, A.
name: Paz-Chinchón, F.
name: Pereira, M. E. S.
name: Malagón, A. A. Plazas
name: Pieres, A.
name: Raveri, M.
name: Rodriguez-Monroy, M.
name: Sanchez, E.
name: Scarpine, V.
name: Schubnell, M.
name: Sevilla-Noarbe, I.
name: Smith, M.
name: Soares-Santos, M.
name: Suchyta, E.
name: Swanson, M. E. C.
name: Tarle, G.
name: Thomas, D.
name: To, C.
name: Weaverdyck, N.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a sample of 19,583 ultracool dwarf candidates brighter than z $\leq 23$ selected from the Dark Energy Survey DR2 coadd data matched to VHS DR6, VIKING DR5 and AllWISE covering $\sim$ 4,800 $deg^2$. The ultracool candidates were first pre-selected based on their (i-z), (z-Y), and (Y-J) colours. They were further classified using a method that compares their optical, near-infrared and mid-infrared colours against templates of M, L and T dwarfs. 14,099 objects are presented as new L and T candidates and the remaining objects are from the literature, including 5,342 candidates from our previous work. Using this new and deeper sample of ultracool dwarf candidates we also present: 20 new candidate members to nearby young moving groups (YMG) and associations, variable candidate sources and four new wide binary systems composed of two ultracool dwarfs. Finally, we also show the spectra of twelve new ultracool dwarfs discovered by our group and presented here for the first time. These spectroscopically confirmed objects are a sanity check of our selection of ultracool dwarfs and photometric classification method.
description: 18 pages, 10 figures, 7 tables. Accepted for publication in MNRAS
EAS Elements for Solid Mechanics - Mesh Distortion Insensitive and Hourglassing-Free Formulations with Increased Robustness
Creators: name: Pfefferkorn, Robin
Publisher: name: KIT Scientific Publishing
Year: 2023
Subjects: enhanced assumed strain (EAS)
mixed integration point
Petrov-Galerkin
Netzverzerrungsempfindlichkeit
Hourglass-Instabilitäten
mesh distortion sensitivity
hourglassing-instabilities

description: Proposed in the early 1990s, the enhanced assumed strain (EAS) method is one of the probably most successful mixed finite element methods for solid mechanics. This cumulative dissertation gives a comprehensive overview of previous publications on that method and covers recent improvements for EAS elements. In particular, we describe three key issues of standard EAS elements and develop corresponding solutions.
Latilactobacillus curvatus CURVATUS 2020, COMB. NOV.
Creators: name: Zheng, Jinshui
name: Wittouck, Stijn
name: Salvetti, Elisa
name: Franz, Charles M. A. P.
name: Harris, Hugh M. B.
name: Mattarelli, Paola
name: O'Toole, Paul W.
name: Pot, Bruno
name: Vandamme, Peter
name: Walter, Jens
name: Watanabe, Koichi
name: Wuyts, Sander
name: Felis, Giovanna E.
name: Gänzle, Michael G.
name: Lebeer, Sarah
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Bacteria
Firmicutes
Bacilli
Lactobacillales
Lactobacillaceae
Latilactobacillus
Latilactobacillus curvatus

description: DESCRIPTIONOF LATILACTOBACILLUS CURVATUS COMB. NOV.
Latilactobacillus curvatus (cur.va ′ tus. L. masc. adj. curvatus curved).
Basonym: Lactobacillus curvatus (Bacterium curvatum Troili- Petersson 1903, 137) Abo-Elnagaand Kandler 1965; Troili- Petersson 1980 (Approved Lists); emend. Klein etal. 1996
Some L. curvatus strains are motile [184]; they occurin pairs, short chains, and frequentlyinhorseshoe forms. Characteristics of the species areprovided by [170, 180, 185]. The genome size of the type strain is 1.82 Mbp. The mol% G+C content of DNAis 42.0.
Isolated from cow dung, fermented and vacuum-packaged refrigerated meat and fish products, dairy products such as milk and cheese, fermented plant products like sauerkraut, sourdough (including prepacked finished dough and pressed yeast), radish, pickles and kimchi, other plantderived materials like honey and from the environmental fermentation process of corn or grass silage [186].
Thetypestrainis 1 T = LMG 9198 T = DSM 20019 T =LMG 13553 T = ATCC 25601 T = CCUG 30669 T = CIP 102992 T =IFO (now NBRC) 15884 T = JCM 1096 T =NRRL B-4562 T.
Genome sequence accession number: AZDL00000000.
16S rRNA gene accession number: AM113777.
description: Published as part of Zheng, Jinshui, Wittouck, Stijn, Salvetti, Elisa, Franz, Charles M. A. P., Harris, Hugh M. B., Mattarelli, Paola, O'Toole, Paul W., Pot, Bruno, Vandamme, Peter, Walter, Jens, Watanabe, Koichi, Wuyts, Sander, Felis, Giovanna E., Gänzle, Michael G. & Lebeer, Sarah, 2020, A taxonomic note on the genus Lactobacillus: Description of 23 novel genera, emended description of the genus Lactobacillus Beijerinck 1901, and union of Lactobacillaceae and Leuconostocaceae, pp. 2782-2858 in International Journal of Systematic and Evolutionary Microbiology 70 on page 2816, DOI: 10.1099/ijsem.0.004107, http://zenodo.org/record/4730536
Exact Ultra Cold Neutrons' Energy Spectrum in Gravitational Quantum Mechanics
Creators: name: Pedram, Pouria
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We find exact energy eigenvalues and eigenfunctions of the quantum bouncer in the presence of the minimal length uncertainty and the maximal momentum. This form of Generalized (Gravitational) Uncertainty Principle (GUP) agrees with various theories of quantum gravity and predicts a minimal length uncertainty proportional to $\hbar\sqrtβ$ and a maximal momentum proportional to $1/\sqrtβ$, where $β$ is the deformation parameter. We also find the semiclassical energy spectrum and discuss the effects of this GUP on the transition rate of the ultra cold neutrons in gravitational spectrometers. Then, based on the Nesvizhevsky's famous experiment, we obtain an upper bound on the dimensionless GUP parameter.
description: 11 pages, 1 figure, to appear in European Physical Journal C
Magnetic Reconnection under Anisotropic MHD Approximation
Creators: name: Hirabayashi, K.
name: Hoshino, M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Space Physics (physics.space-ph)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We study the formation of slow-mode shocks in collisionless magnetic reconnection by using one- and two-dimensional collisionless MHD codes based on the double adiabatic approximation and the Landau closure model. We bridge the gap between the Petschek-type MHD reconnection model accompanied by a pair of slow shocks and the observational evidence of the rare occasion of in-situ slow shock observation. Our results showed that once magnetic reconnection takes place, a firehose-sense pressure anisotropy arises in the downstream region, and the generated slow shocks are quite weak comparing with those in an isotropic MHD. In spite of the weakness of the shocks, however, the resultant reconnection rate is 10-30% higher than that in an isotropic case. This result implies that the slow shock does not necessarily play an important role in the energy conversion in the reconnection system, and is consistent with the satellite observation in the Earth's magnetosphere.
description: 20 pages, 11 figures, accepted for publication in PoP
The Wave Energy Density and Growth Rate for the Resonant Instability in Relativistic Plasmas
Creators: name: Jeong, Seong-Yeop
name: Watt, Clare
Publisher: name: arXiv
Year: 2023
Subjects: subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: The wave instability acts in astrophysical plasmas to redistribute energy and momentum in the absence of frequent collisions. There are many different types of waves, and it is important to quantify the wave energy density and growth rate for understanding what type of wave instabilities are possible in different plasma regimes. There are many situations throughout the universe where plasmas contain a significant fraction of relativistic particles. Theoretical estimates for the wave energy density and growth rate are constrained to either field-aligned propagation angles, or non-relativistic considerations. Based on linear theory, we derive the analytic expressions for the energy density and growth rate of an arbitrary resonant wave with an arbitrary propagation angle in relativistic plasmas. For this derivation, we calculate the Hermitian and anti-Hermitian parts of the relativistic-plasma dielectric tensor. We demonstrate that our analytic expression for the wave energy density presents an explicit energy increase of resonant waves in the wavenumber range where the analytic expression for the growth rate is positive (i.e., where a wave instability is driven). For this demonstration, we numerically analyse the loss-cone driven instability, as a specific example, in which the whistler-mode waves scatter relativistic electrons into the loss cone in the radiation belt. Our analytic results further develop the basis for linear theory to better understand the wave instability, and have the potential to combine with quasi-linear theory, which allows to study the time evolution of not only the particle momentum distribution function but also resonant wave properties through an instability.
description: accepted in MNRAS
The largest bright ULX population in a galaxy: X-ray variability and Luminosity Function in the Cartwheel ring Galaxy
Creators: name: Salvaggio, Chiara
name: Wolter, Anna
name: Belfiore, Andrea
name: Colpi, Monica
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We analyse all the available Chandra observations of the Cartwheel Galaxy and its compact group, taken between 2001 and 2008, with the main aim of addressing the variability in the X-ray band for this spectacular collisional ring galaxy. We focus on the study of point-like sources, in particular we are interested in Ultraluminous X-ray sources (ULXs, Lx >= 10^39 erg/s), that we treat as a class. We exploit archival XMM-Newton data to enrich the study of the long-term variability, on timescales of months to years. We find a total of 44 sources in the group area, of which 37 in total are ULXs positionally linked with the galaxies and of which we can study variability. They are 29 in the Cartwheel itself, 7 in G1 and 1 in G3. About one third of these 37 sources show long-term variability, while no variability is detected within the single observations. Of those, 5 ULXs have a transient behaviour with a maximum range of variability (Lmax/Lmin) of about one order of magnitude and are the best candidate neutron stars. The X-ray Luminosity Function (XLF) of the point-like sources remains consistent in shape between the Chandra observations both for the Cartwheel galaxy itself and for G1, suggesting that flux variability does not strongly influence the average properties of the population on the observation timescales.
description: 17 pages, 5 figures, Accepted for publication in MNRAS
AstroSat and NuSTAR observations of XTE J1739-285 during the 2019-2020 outburst
Creators: name: Beri, Aru
name: Sharma, Rahul
name: Roy, Pinaki
name: Gaur, Vishal
name: Altamirano, Diego
name: Andersson, Nils
name: Gittins, Fabian
name: Celora, T.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report results from a study of XTE J1739-285, a transient neutron star low mass X-ray binary observed with AstroSat and NuSTAR during its 2019-2020 outburst. We detected accretion-powered X-ray pulsations at 386 Hz during very short intervals (0.5--1 s) of X-ray flares. These flares were observed during the 2019 observation of XTE J1739-285. During this observation, we also observed a correlation between intensity and hardness ratios, suggesting an increase in hardness with the increase in intensity. Moreover, a thermonuclear X-ray burst detected in our AstroSat observation during the 2020 outburst revealed the presence of coherent burst oscillations at 383 Hz during its decay phase. The frequency drift of 3 Hz during X-ray burst can be explained with r modes. Thus, making XTE J1739-285 belong to a subset of NS-LMXBs which exhibit both nuclear- and accretion-powered pulsations. The power density spectrum created using the AstroSat-LAXPC observations in 2020 showed the presence of a quasi-periodic oscillation at ~ 0.83 Hz. Our X-ray spectroscopy revealed significant changes in the spectra during the 2019 and 2020 outburst. We found a broad iron line emission feature in the X-ray spectrum during the 2020 observation, while this feature was relatively narrow and has a lower equivalent width in 2019,~when the source was accreting at higher rates than 2020.
description: Accepted for publication in MNRAS, 13 pages
A detailed analysis of X-ray emission line velocities of Capella from over 20 years of Chandra/HETG spectroscopy
Creators: name: Bozzo, E.
name: Huenemoerder, D. P.
name: Produit, N.
name: Falanga, M.
name: Paltani, S.
name: Costantini, E.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Capella is the brightest chromospherically active binary in the sky, hosting a cooler G8III giant (Aa) and an hotter G1III companion (Ab). The source has been extensively observed in the X-rays in the past decades not only for its astrophysical interest in the field of corona sources, but also for in-flight calibrations of space-based X-ray instruments. In 2006, it was demonstrated using Chandra/HETG observations that Aa is the main contributor to Capella's X-ray emission, as the centroid energies of the emission lines are Doppler shifted along the orbit of the G8III giant (an aspect that has to be taken in consideration for calibration activities of X-ray instruments). In this paper, we extend the previous analysis performed in 2006 by re-analyzing in an homogeneous way all Chandra/HETG observations performed in the direction of Capella. By doubling the amount of data available, we strengthened the conclusion that Capella Aa is the dominant emitter in soft X-rays. We did not find any evidence of a statistically significant contribution to this emission by the Ab giant. Our findings are discussed also in light of the incoming launch of the XRISM mission (spring 2023).
description: Accepted for publication on MNRAS letters
Stirred but not shaken: a multi-wavelength view of HD 16743's debris disc
Creators: name: Marshall, Jonathan P.
name: Milli, Julien
name: Choquet, Elodie
name: del Burgo, Carlos
name: Kennedy, Grant M.
name: Kemper, Francisca
name: Wyatt, Mark C.
name: Kral, Quentin
name: Soummer, Remi
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Planetesimals -- asteroids and comets -- are the building blocks of planets in protoplanetary discs and the source of dust, ice and gas in debris discs. Along with planets they comprise the left-over material after star formation that constitutes a planetary system. Planets influence the dynamics of planetesimals, sculpting the orbits of debris belts to produce asymmetries or gaps. We can constrain the architecture of planetary systems, and infer the presence of unseen planetary companions, by high spatial resolution imaging of debris discs. HD~16743 is a relatively young F-type star that hosts a bright edge-on debris disc. Based on far-infrared \textit{Herschel} observations its disc was thought to be stirred by a planetary companion. Here we present the first spatially resolved observations at near-infrared and millimetre wavelengths with \textit{HST} and ALMA, revealing the disc to be highly inclined at $87\fdg3~^{+1\fdg9}_{-2\fdg5}$ with a radial extent of 157.7$^{+2.6}_{-1.5}$~au and a FWHM of 79.4$^{+8.1}_{-7.8}$~au ($ΔR/R = 0.5$). The vertical scale height of the disc is $0.13~\pm~0.02$, significantly greater than typically assumed unstirred value of 0.05, and could be indicative of stirring of the dust-producing planetesimals within the disc by bodies at least a few times the mass of Pluto up to 18.3~$M_{\oplus}$ in the single object limit.
description: 12 pages, 7 figures, 4 tables, accepted for publication in MNRAS
Gerbillus watersi de Winton 1901
Creators: name: Musser, Guy G.
name: Carleton, Michael D.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Muridae
Gerbillus
Gerbillus watersi

description: Gerbillus watersi de Winton, 1901. Novit. Zool., 8:399. TYPE LOCALITY: Sudan, Upper Nile, Shendi. DISTRIBUTION: Somalia, Sudan. COMMENTS: Listed both as a subspecies of G. nanus or as a valid species by Petter (1975b) in the same report. The species should be considered distinct until revisionary studies advise otherwise (Lay, 1983).
description: Published as part of Guy G. Musser & Michael D. Carleton, 1993, Order Rodentia - Family Muridae, pp. 501-755 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 555, DOI: 10.5281/zenodo.7353098
description: {"references": ["Petter, F. 1975 b. Subfamily Gerbillinae. Part 6.3. Pp. 7 - 12, in The mammals of Africa: An identification manual (J. Meester and H. W. Setzer, eds.) [issued 10 Dec 1975]. Smithsonian Institution, Washington, D. C., not continuously paginated.", "Lay, D. M. 1983. Taxonomy of the genus Gerbillus (Rodentia: Gerbillinae) with comments on the applications of generic and subgeneric names and an annotated list of species. Zeitschrift fur Saugetierkunde, 48: 329 - 354."]}
Conformal Symmetry, Rindler Space and The AdS/CFT Correspondence
Creators: name: Samantray, Prasant
name: Padmanabhan, T.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Field theories in black hole spacetimes undergo dimensional reduction near horizon (in the Rindler limit) to two dimensional conformal field theories. We investigate this enhancement of symmetries in the context of gauge/gravity duality by considering Rindler space as boundary of Anti-de Sitter space in three spacetime dimensions. We show that the loxodromy conjugacy class of the SO(2,2) isometry group is responsible for generating the special conformal transformations on the boundary under RG flow. We use this approach to present an alternative derivation of the two-point function in Rindler space using AdS/CFT correspondence.
description: 11 pages, Minor changes in the text
Exploring Thousands of Nearby Hierarchical Systems with Gaia and Speckle Interferometry
Creators: name: Tokovinin, Andrei
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: There should be about 10,000 stellar hierarchical systems within 100 pc with primary stars more massive than 0.5 Msun, and a similar amount of less massive hierarchies. A list of 8000 candidate multiples is derived from wide binaries found in the Gaia Catalog of Nearby Stars where one or both components have excessive astrometric noise or other indicators of inner subsystems. A subset of 1243 southern candidates were observed with high angular resolution at the 4.1 m telescope, and 503 new pairs with separations from 0.03" to 1" were resolved. These data allow estimation of the inner mass ratios and periods and help to quantify the ability of Gaia to detect close pairs. Another 621 hierarchies with known inner periods come from the Gaia catalog of astrometric and spectroscopic orbits. These two non-overlapping groups, combined with existing ground-based data, bring the total number of known nearby hierarchies to 2754, reaching a completeness of ~22% for stars above 0.5 Msun. Distributions of their periods and mass ratios are briefly discussed, and the prospects of further observations are outlined.
description: 13 pages, 9 figures, 3 tables