bluuebunny/crossref_metadata_2025_split huggingface dataset:
Auditoría de información aplicada a la gestión de documentos
Authors: Benítez Mirian Andresa 
Published: February 2023

El presente artículo tiene por objetivo general identificar la efectividad de los recursos documentales de la Dirección Académica de la Facultad de Ciencias Contables, Administrativas y Económicas de la Universidad Nacional de Pilar. El diseño de este trabajo se enmarca dentro de los estudios no experimentales, de tipo descriptivo. Lo que permitió llegar a la conclusión de que la Dirección Académica de la Facultad, dispone de un equipo interdisciplinario, basada en redes de conocimientos de expertos quienes evalúan el uso efectivo de los recursos de información aplicados a la gestión documental de la organización como una ventaja competitiva, ofreciendo servicios de información necesarias de manera interna, en los que se valoran los costos y beneficios de estos recursos y analizan cómo ocurren los procesos de creación, distribución, transferencia y reutilización de la gestión de datos externos, utilizando estrategias que permiten el acceso a la información. En este sentido, por la gran demanda de gestión de datos de la Dirección Académica de la Facultad, se ha incrementado el desarrollo de los flujos informacionales con estudiantes, las demás Direcciones Academias de otras Facultades, la Dirección General Académica de la Universidad y la sociedad con la que está vinculada, para el desarrollo y el funcionamiento de la educación superior en el Paraguay.
Hernia de garengeot: hernia femoral con contenido de apéndice cecal
Authors: Moya Cañar Betsabe , Andrade Paul 
Published: February 2023

Las hernias de Garengeot son protrusiones ubicada en la región femoral que en su contenido se encuentra la apéndice, la sintomatología no es específica y su diagnóstico la mayor parte se da dentro de la intervención quirúrgica, los síntomas pueden variar entre síntomas inespecíficos como dolor abdominal, nausea, vomito, fiebre, decaimiento hasta síntomas específicos como masa irreductible en región femoral, su etiología no está bien detallada pero podría deberse a defectos en la anatomía propia y la mala rotación a lo largo del desarrollo del intestino grueso, la mayoría de las hernias de Garengeot son hernias encarceladas que gracias a la isquemia o inflamación son una urgencia quirúrgica.
Objetivo: Mediante a la lectura y análisis de documentos científicos detallar la definición, fisiopatología, diagnóstico y tratamiento de Hernia de Garengeot y asi obtener pautas claras de manejo oportuno de esta patologia.
Método: Se realizó una recopilación de artículos, documentos con contenido científico y redacciones relacionado al tema, mediante una búsqueda con características de inclusión y exclusión que se tomaron en cuenta como el tiempo de publicación, la pertinencia al tema, validez de artículos científicos para escoger el texto base. Mediante la lectura y observación descriptiva se realizó en análisis
Conclusiones: La hernia de Garengeot es una urgencia quirúrgica, el dolor es uno de los síntomas característicos, la tomografía computarizada es de gran ayuda diagnostica preoperatorio, la técnica quirúrgica abierta es la de mayor elección en comparación con el abordaje laparoscópico
TRAFFIC SIGN RECOGNITION WITH CONVOLUTIONAL NEURAL NETWORK
Authors: Temirgaziyeva Sharipa , Omarov Batyrkhan 
Published: February 2023

Recognizing road signs is one of the most important steps drivers can take to help prevent accidents. The purpose of the research work is to develop a recognition system, increasing the classification accuracy of the model, using deep learning methods of the road sign recognition system for drivers in real time on the road. Stages of road sign image classification were carried out, and other authors' solutions were analyzed. In addition, in this work, a convolutional neural network (CNN) was used for an autonomous traffic and road sign detection and recognition system. The proposed system works in real-time on the recognition of road signs images. In this paper, a model is trained using deep learning of 43 different road signs using existing datasets and collected local road signs. A traffic sign detection and recognition system is presented using an 8-layer convolutional neural network, which acquires different functions by training different types of traffic signs.
In previous studies, models were trained using simple machine learning algorithms, but the relevance of this study is that a CNN model was trained for a classification task based on convolutional neural networks using deep learning. As a result of the study, classification accuracy of 95% was obtained using deep learning methods. As a novelty of the work, it is possible to note the diversity of the convolutional network methods used to increase the efficiency of the used data set and model training algorithms, the variety of received road signs and algorithms for its recognition, as well as the achievement of a high accuracy rate. This allowed the system to overcome the limited accuracy and performance issues caused by environmental factors, and to be more versatile and accurate than most modern systems.
TOI-561 b: A Low-density Ultra-short-period “Rocky” Planet around a Metal-poor Star
Authors: Brinkman Casey L. , Weiss Lauren M. , Dai Fei , Huber Daniel , Kite Edwin S. , Valencia Diana , Bean Jacob L. , Beard Corey , Behmard Aida , Blunt Sarah , Brady Madison , Fulton Benjamin , Giacalone Steven , Howard Andrew W. , Isaacson Howard , Kasper David , Lubin Jack , MacDougall Mason , Akana Murphy Joseph M. , Plotnykov Mykhaylo , Polanski Alex S. , Rice Malena , Seifahrt Andreas , Stefánsson Guðmundur , Stürmer Julian 
Published: February 2023

Abstract
TOI-561 is a galactic thick-disk star hosting an ultra-short-period (0.45-day-orbit) planet with a radius of 1.37 R
⊕, making it one of the most metal-poor ([Fe/H] = −0.41) and oldest (≈10 Gyr) sites where an Earth-sized planet has been found. We present new simultaneous radial velocity (RV) measurements from Gemini-N/MAROON-X and Keck/HIRES, which we combined with literature RVs to derive a mass of M

b
= 2.24 ± 0.20 M
⊕. We also used two new sectors of TESS photometry to improve the radius determination, finding R

b
= 1.37 ± 0.04 R
⊕ and confirming that TOI-561 b is one of the lowest-density super-Earths measured to date (ρ

b
= 4.8 ± 0.5 g cm−3). This density is consistent with an iron-poor rocky composition reflective of the host star’s iron and rock-building element abundances; however, it is also consistent with a low-density planet with a volatile envelope. The equilibrium temperature of the planet (∼2300 K) suggests that this envelope would likely be composed of high mean molecular weight species, such as water vapor, carbon dioxide, or silicate vapor, and is likely not primordial. We also demonstrate that the composition determination is sensitive to the choice of stellar parameters and that further measurements are needed to determine whether TOI-561 b is a bare rocky planet, a rocky planet with an optically thin atmosphere, or a rare example of a nonprimordial envelope on a planet with a radius smaller than 1.5 R
⊕.
Observations of Magnetic Reconnection and Particle Acceleration Locations in Solar Coronal Jets
Authors: Zhang Yixian , Musset Sophie , Glesener Lindsay , Panesar Navdeep K. , Fleishman Gregory D. 
Published: February 2023

Abstract
We present a multiwavelength analysis of two flare-related jets on 2014 November 13, using data from the Solar Dynamics Observatory/Atmospheric Imaging Assembly (SDO/AIA), the Reuven High Energy Solar Spectroscopic Imager (RHESSI), the Hinode/X-ray Telescope (XRT), and the Interface Region Imaging Spectrograph (IRIS). Unlike most coronal jets, where hard X-ray (HXR) emissions are usually observed near the jet base, in these events HXR emissions are found at several locations, including in the corona. We carry out the first differential emission measure analysis that combines both AIA (and XRT, when available) bandpass filter data and RHESSI HXR measurements for coronal jets, and obtain self-consistent results across a wide temperature range and into nonthermal energies. In both events, hot plasma first appears at the jet base, but as the base plasma gradually cools, hot plasma also appears near the jet top. Moreover, nonthermal electrons, while only mildly energetic, are found in multiple HXR locations and contain large amounts of total energy. In particular, the energetic electrons that produce the HXR sources at the jet top are accelerated near the top location, rather than traveling from a reconnection site at the jet base. This means that there is more than one particle acceleration site in each event. Jet velocities are consistent with previous studies, including the upward and downward velocities around ∼200 km s−1 and ∼100 km s−1, respectively, and fast outflows of 400–700 km s−1. We also examine the energy partition in the later event, and find that the nonthermal energy in the accelerated electrons is most significant compared to the other energy forms considered. We discuss the interpretations and provide constraints on the mechanisms for coronal jet formation.
Quijote-PNG: The Information Content of the Halo Power Spectrum and Bispectrum
Authors: Coulton William R , Villaescusa-Navarro Francisco , Jamieson Drew , Baldi Marco , Jung Gabriel , Karagiannis Dionysios , Liguori Michele , Verde Licia , Wandelt Benjamin D. 
Published: February 2023

Abstract
We investigate how much can be learnt about four types of primordial non-Gaussianity (PNG) from small-scale measurements of the halo field. Using the quijote-png simulations, we quantify the information content accessible with measurements of the halo power spectrum monopole and quadrupole, the matter power spectrum, the halo–matter cross spectrum, and the halo bispectrum monopole. This analysis is the first to include small, nonlinear scales, up to

k

max

=
0.5

h

Mpc

−
1

, and to explore whether these scales can break degeneracies with cosmological and nuisance parameters making use of thousands of N-body simulations. We perform all the halo measurements in redshift space with a single sample comprised of all halos with mass >3.2 × 1013
h
−1
M
⊙. For local PNG, measurements of the scale-dependent bias effect from the power spectrum using sample variance cancellation provide significantly tighter constraints than measurements of the halo bispectrum. In this case measurements of the small scales add minimal additional constraining power. In contrast, the information on equilateral and orthogonal PNG is primarily accessible through the bispectrum. For these shapes, small-scale measurements increase the constraining power of the halo bispectrum by up to 4×, though the addition of scales beyond k ≈ 0.3 h Mpc−1 improves constraints largely through reducing degeneracies between PNG and the other parameters. These degeneracies are even more powerfully mitigated through combining power spectrum and bispectrum measurements. However, even with combined measurements and small-scale information, equilateral non-Gaussianity remains highly degenerate with σ
8 and our bias model.
The Small-scale Dynamo in a Multiphase Supernova-driven Medium
Authors: Gent Frederick A. , Mac Low Mordecai-Mark , Korpi-Lagg Maarit J. , Singh Nishant K. 
Published: February 2023

Abstract
Magnetic fields grow quickly, even at early cosmological times, suggesting the action of a small-scale dynamo (SSD) in the interstellar medium (ISM) of galaxies. Many studies have focused on idealized, isotropic, homogeneous, turbulent driving of the SSD. Here we analyze more realistic simulations of supernova-driven turbulence to understand how it drives an SSD. We find that SSD growth rates are intermittently variable as a result of the evolving multiphase ISM structure. Rapid growth in the magnetic field typically occurs in hot gas, with the highest overall growth rates occurring when the fractional volume of hot gas is large. SSD growth rates correlate most strongly with vorticity and fluid Reynolds number, which also both correlate strongly with gas temperature. Rotational energy exceeds irrotational energy in all phases, but particularly in the hot phase while SSD growth is most rapid. Supernova rate does not significantly affect the ISM average kinetic energy density. Rather, higher temperatures associated with high supernova rates tend to increase SSD growth rates. SSD saturates with total magnetic energy density around 5% of equipartition to kinetic energy density, increasing slightly with magnetic Prandtl number. While magnetic energy density in the hot gas can exceed that of the other phases when SSD grows most rapidly, it saturates below 5% of equipartition with kinetic energy in the hot gas, while in the cold gas it attains 100%. Fast, intermittent growth of the magnetic field appears to be a characteristic behavior of supernova-driven, multiphase turbulence.
On the Role of Dynamical Cooling in the Dynamics of Circumbinary Disks
Authors: Wang Hai-Yang , Bai Xue-Ning , Lai Dong 
Published: February 2023

Abstract
Hydrodynamical interactions between binaries and circumbinary disks (CBDs) play an important role in a variety of astrophysical systems, from young stellar binaries to supermassive black hole binaries. Previous simulations of CBDs have mostly employed locally isothermal equations of state. We carry out 2D viscous hydrodynamic simulations of CBDs around equal-mass, circular binaries, treating the gas thermodynamics by thermal relaxation toward equilibrium temperature (the constant-β cooling ansatz, where β is the cooling time in units of the local Keplerian time). As an initial study, we use the grid-based code Athena++ on a polar grid, covering an extended disk outside the binary co-orbital region. We find that with a longer cooling time, the accretion variability is gradually suppressed, and the morphology of the CBD becomes more symmetric. The disk also shows evidence of hysteresis behavior depending on the initial conditions. Gas cooling also affects the rate of angular momentum transfer between the binary and the CBD, where given our adopted disk thickness and viscosity (H/r ∼ 0.1 and α ∼ 0.1), the binary orbit expands while undergoing accretion for most β values between 0 and 4.0 except over a narrow range of intermediate β values. The validity of using a polar grid excising the central domain is also discussed.
Quasi-parallel Whistler Waves and Their Interaction with Resonant Electrons during High-velocity Bulk Flows in the Earth’s Magnetotail
Authors: Grigorenko Elena E. , Malykhin Andrey Y. , Kronberg Elena A. , Panov Evgeny V. 
Published: February 2023

Abstract
In collisionless space, plasma waves are important channels of energy conversion, affecting the local particle velocity distribution functions through wave–particle interactions. In this paper we present a comparative statistical analysis of the characteristics of quasi-parallel narrowband whistler waves and the properties of resonant electrons interacting with these waves during the intervals of earthward and tailward high-velocity bulk flows produced by the near-Earth X-line and observed by Magnetospheric Multiscale Mission spacecraft. We found that on both sides of the X-line, the suprathermal electrons (≥1 keV) having large pitch angles make the major contribution to the maximal growth rate (γ) of these waves. The whistler waves were observed almost simultaneously with strong enhancements of perpendicular magnetic gradients localized at electron scales near dipolarization fronts associated with the earthward bulk flows, and near flux ropes/magnetic islands embedded into the tailward bulk flows. Betatron energization of electrons due to the appearance of such gradients increases the perpendicular anisotropy of electron distribution, which could be responsible for the whistler wave generation. We found that in the course of electron interactions with the whistler waves the lower-energy resonant electrons can transfer a part of their kinetic energy to the higher-energy electrons, especially in the Central Plasma Sheet. This results in formation/enhancement of energy-dependent perpendicular anisotropy and power-law tails in the high-energy range of electron velocity distribution. We conclude that despite the differences in the magnetic structure of the earthward and tailward bulk flows, the mechanisms of the quasi-parallel whistler wave generation and the properties of resonant electrons are quite similar.
Gamma-Ray Emission from Galaxies Hosting Molecular Outflows
Authors: McDaniel Alex , Ajello Marco , Karwin Chris 
Published: February 2023

Abstract
Many star-forming galaxies and those hosting active galactic nuclei show evidence of massive outflows of material in a variety of phases including ionized, neutral atomic, and molecular. Molecular outflows in particular have been the focus of recent interest as they may be responsible for removing gas from the galaxy, thereby suppressing star formation. As material is ejected from the cores of galaxies, interactions of the outflowing material with the interstellar medium can accelerate cosmic rays and produce high-energy gamma rays. In this work, we search for gamma-ray emission from a sample of local galaxies known to host molecular outflows using data collected by the Fermi Large Area Telescope. We employ a stacking technique in order to search for and characterize the average gamma-ray emission properties of the sample. Gamma-ray emission is detected from the galaxies in our sample at the 4.4σ level with a power-law photon index of Γ ≈ 2 in the 1–800 GeV energy range. The emission is found to correlate with tracers of star formation activity, namely the 8–1000 μm infrared luminosity. We also find that the observed signal can be predominantly attributed to H ii galaxies hosting energy-driven outflows. While we do not find evidence suggesting that the outflows are accelerating charged particles directly, galaxies with molecular outflows may produce more gamma rays than galaxies without outflows. In particular, the set consisting of gamma-ray-detected galaxies with molecular outflows are nearly perfect calorimeters and may be future targets for searches of high-energy neutrinos.
Ammonia Abundance Derived from Juno MWR and VLA Observations of Jupiter
Authors: Moeckel Chris , de Pater Imke , DeBoer David 
Published: February 2023

Abstract
The vertical distribution of trace gases in planetary atmospheres can be obtained with observations of the atmosphere’s thermal emission. Inverting radio observations to recover the atmospheric structure, however, is nontrivial, and the solutions are degenerate. We propose a modeling framework to prescribe a vertical distribution of trace gases that combines a thermochemical equilibrium model with a vertical temperature structure and compare these results to models where ammonia can vary between predefined pressure nodes. We compare these model to nadir brightness temperatures and limb-darkening parameters, together with their uncertainties, which we reduced from the raw Juno Microwave Radiometer (MWR) data set. We then apply this framework to MWR observations during Juno’s first years of operation (perijove passes 1–12) and to longitudinally averaged latitude scans taken with the upgraded Very Large Array. We use the model to constrain the distribution of ammonia between −60° and 60° latitude and down to 100 bars. We constrain the ammonia abundance to be

340.5

−
21.2

+
34.8

ppm (

2.66

−
0.17

+
0.27

×

solar abundance) and find a depletion of ammonia down to a depth of ∼20 bars, which supports the existence of processes that deplete the atmosphere below the ammonia and water cloud layers. At the equator we find an increase of ammonia with altitude, while the zones and belts in the midlatitudes can be traced down to levels where the atmosphere is well mixed. The latitudinal variation in the ammonia abundance appears to be opposite to that shown at higher altitudes, which supports the existence of a stacked-cell circulation model.
Literarische Netzwerk- und Feldanalyse. Methodische Unterschiede und Gemeinsamkeiten mit einem Einordnungsversuch sprachexperimenteller Lyrik um 1990 (Kling, Grünbein, Papenfuß)
Authors: Tommek Heribert 
Published: February 2023

Le paradigme du réseau est au cœur du « nouvel esprit du capitalisme » et il est donc directement pertinent pour la production culturelle contemporaine. Les études littéraires qui ont développé des approches d’analyse de réseaux au cours des dernières années se sont concentrées jusqu’à présent sur la littérature du xviii e siècle, sur les réseaux d’auteurs, d’œuvres et de lecteurs et en particulier sur l’analyse des personnages et des intrigues dans le drame. En raison d’autres caractéristiques génériques, la poésie ne semble pas se prêter à une analyse de réseau intra-littéraire. L’article esquisse les grandes lignes des approches de l’analyse de réseau dans les études littéraires et montre les points communs et les différences avec l’analyse de champ littéraire. Enfin, il présente les différentes classifications des positions d’expérimentation linguistique en poésie depuis la Wende dans une ligne ascendante allant de l’analyse de réseau à l’analyse de champ en passant par l’analyse de discours.
Activité historienne et appartenance urbaine
Authors: Lévy Fabien 
Published: February 2023

Du xi e au xiv e siècles Gênes bâtit au gré de ses chroniques un discours historique fondé sur son identité républicaine et maritime. La crise politique et économique que traverse la cité à la fin du Moyen Âge semble cependant se répercuter dans le domaine culturel, où elle perd la maîtrise de son récit. Pire, au début du xvi e siècle, ses nouveaux maîtres français vont appuyer leur domination en créant un discours concurrent, centré autour de l’idéal monarchique, s’appuyant pour cela sur des chroniqueurs français mais aussi italiens et génois. Loin de ces œuvres de commande, l’esprit civique des Génois se manifestera pourtant au sein de nombreuses productions littéraires aux ambitions historiques, permettant de renouer avec l’idéal républicain de ses origines, triomphant lors de la réforme et de l’indépendance retrouvée de 1528.
Le son, l’espace et la cohérence de la notion kantienne de sens externe
Authors: Fournier Jean-Baptiste 
Published: February 2023

Les mathématiciens et philosophes du xix e siècle ont souligné l’incapacité de la doctrine kantienne de l’espace à prendre en charge la fondation des géométries non euclidiennes, et cette difficulté semble pouvoir être rapportée à une tension interne à la notion kantienne d’extériorité : en cherchant à « exposer » l’espace comme condition de possibilité de la géométrie comme science a priori , Kant s’interdirait en réalité de rendre compte de sa fonction de possibilisation de l’expérience externe en général. Le même problème se manifeste lorsqu’on cherche à rendre compte, comme nous le faisons ici, de l’extériorité des phénomènes sonores. À travers la description du rapport du son au temps, mais aussi à l’espace, et à la lumière de la musique savante contemporaine et en particulier d’une œuvre de Pierre Boulez dans laquelle la spatialisation du son joue un rôle majeur, nous montrons qu’il est nécessaire, pour sauver le transcendantal, de lui imposer un reformatage – et plus précisément un déplacement. Car dans la tension entre fondation des axiomes géométriques et ouverture du sujet à l’extériorité, ce qui se joue n’est pas autre chose que le sens même de la question transcendantale.