bluuebunny/crossref_metadata_2025_split huggingface dataset:
Análisis de esquemas de metadatos para catalogación de tesis y proyectos de investigación
Authors: Campoverde Molina Milton , Vizñay Durán Jenny , Vintimilla Jara Silvia 
Published: June 2018

Este artículo revela el análisis comparativo de los esquemas de metadatos MARC21, MODS, DUBLIN CORE y OPAC en la catalogación y publicación de tesis y proyectos de investigación en el repositorio DSpace. Inicia con la elaboración y aplicación de una encuesta a los administradores bibliotecarios de las instituciones: Universidad de Cuenca, Universidad del Azuay, Universidad Católica de Cuenca, Universidad Politécnica Salesiana y la Biblioteca Municipal de la ciudad de Cuenca, con el fin de determinar el esquema de metadatos empleado en la catalogación de tesis y proyectos de investigación. Luego se realiza la instalación de una Máquina Virtual bajo el sistema operativo Ubuntu, utilizando la herramienta tasksel se instalan los requisitos previos a la instalación de DSpace, configuración del repositorio DSpace y publicación de los contenidos de tesis y proyectos de investigación dentro del repositorio. Se concluye que el metadato que predomina dentro de los repositorios DSpace es el Dublin Core y es el que mejor se adecua para la catalogación de tesis y proyectos de investigación, en las pruebas con estudiantes y profesores en los tres aspectos: técnico, de uso y funcional. El esquema de metadato Dublin Core en el repositorio DSpace es calificado como excelente, presentando un nivel medio de complejidad en el registro de documentos.
ABSTRACT
This article reveals the comparative analysis of metadata schemas MARC21, MODS, DUBLIN CORE and OPAC in cataloging and publication of thesis and research projects in the DSpace repository. It begins with the development and implementation of a survey to library administrators of the following institutions: University of Cuenca, Azuay University, Catholic University of Cuenca, Salesian University and the Municipal Library of the city of Cuenca, in order to determine the schema metadata used in cataloging thesis and research projects. Then a virtual Machine was installed under the Ubuntu operating system. By using the tasksel tool the prerequisites are installed previous to the installation of DSpace, DSpace repository configuration and publication of the contents of thesis and research projects within the repository. It is concluded that the metadata that prevails within the DSpace repositories is the Dublin Core and it is the one best fits for cataloging thesis and research projects, in tests with students and teachers in the three aspects: technical, use and functional. The Dublin Core metadata schema in the repository DSpace is rated as excellent, having an average level of complexity in registration documents.
Effectiveness of Mexican oregano essential oil from the Dominican Republic (Lippia graveolens) against maize pests (Sitophilus zeamais and Fusarium verticillioides)
Authors: Peschiutta M.L. , Arena J.S. , Ramirez Sanchez A. , Gomez Torres E. , Pizzolitto R.P. , Merlo C. , Zunino M.P. , Merlo C. , Zunino M.P. , Omarini A.B. , Dambolena J.S. , Zygadlo J. 
Published: June 2018

The insecticidal and antifungal properties of Mexican oregano (Lippia graveolens) essential oil from the Dominican Republic were investigated under laboratory conditions against two main pests of stored grains: Sitophilus zeamais and Fusarium verticillioides. Although oregano essential oil at 600 ?l/l air did not result in a significant mortality of S. zeamais after 24 hours of exposure by fumigation, this essential oil was a powerful acetylcholinesterase (AChE) inhibitor in vitro. One of the main components of oregano essential oil, p-cymene, presented fumigant toxicity and AChE inhibition activity against the maize weevil. The L. graveolens essential oil antifungal activity against F. verticillioides was evaluated at 50, 100 and 200 ?l/l, and it was found that growth parameters were affected by the presence of oregano essential oil in the media, whereas FB1 production was not inhibited. The results demonstrate that oregano essential oil and p-cymene can be used as alternatives to synthetic pesticides against F. verticillioides and S. zeamais, respectively.
El rol del gluten en la panificación y el desafío de prescindir de su aporte en la elaboración de pan
Authors: Sciarini L.S. , Steffolani M.E. , León A.E. 
Published: June 2018

La enfermedad celíaca es una enteropatía crónica del intestino delgado inmunomediada y promovida por la exposición a una dieta con gluten en individuos genéticamente predispuestos. La interacción de factores genéticos y ambientales provoca la pérdida de tolerancia a ciertas proteínas presentes en algunos cereales. Recientemente se estableció una prevalencia de celiaquía del 1% en el mundo, con grandes variaciones entre los países. El único tratamiento eficaz es adoptar una dieta libre de gluten. El gluten es una red proteica que se estructura al hidratar la harina y se refuerza mediante el amasado. Está conformado fundamentalmente por dos fracciones proteicas: prolaminas y glutelinas. Estas proteínas juegan un rol preponderante en la calidad de los más tradicionales productos de panificación, por lo que es un gran desafío para investigadores y tecnólogos elaborar estos productos sin contar con esta red. La polimerización de proteínas para simular la red de gluten ha mostrado sus limitaciones, por lo que se profundizó en el estudio de las interacciones entre diferentes componentes como un factor determinante para el desarrollo de productos. Sobre esa base se obtuvieron mejores resultados usando almidón de mandioca y harina de soja activa, gracias las interacciones específicas establecidas entre ambos componentes.
Albedos of Centaurs, Jovian Trojans, and Hildas
Authors: Romanishin W. , Tegler S. C. 
Published: June 2018

Abstract
We present optical V band albedo distributions for middle solar system minor bodies including Centaurs, Jovian Trojans, and Hildas. Diameters come mostly from the NEOWISE catalog. Optical photometry (H values) for about two-thirds of the ∼2700 objects studied are from Pan-STARRS, supplemented by H values from JPL Horizons (corrected to the Pan-STARRS photometric system). Optical data for Centaurs are from our previously published work. The albedos presented here should be superior to previous work because of the use of the Pan-STARRS optical data, which is a homogeneous data set that has been transformed to standard V magnitudes. We compare the albedo distributions of pairs of samples using the nonparametric Wilcoxon test. We strengthen our previous findings that gray Centaurs have lower albedos than red Centaurs. The gray Centaurs have albedos that are not significantly different from those of the Trojans, suggesting a common origin for Trojans and gray Centaurs. The Trojan L4 and L5 clouds have median albedos that differ by ∼10% at a very high level of statistical significance, but the modes of their albedo distributions differ by only ∼1%. We suggest the presence of a common “true background” in the two clouds, with an additional more reflective component in the L4 cloud. We find, in agreement with Grav et al. that the Hildas are darker than the Trojans by 15%–25%. Perhaps the Hildas are darker because of their passage near perihelion through zone III of the main asteroid belt, which might result in significant darkening by gardening.
High-precision Orbit Fitting and Uncertainty Analysis of (486958) 2014 MU69
Authors: Porter Simon B. , Buie Marc W. , Parker Alex H. , Spencer John R. , Benecchi Susan , Tanga Paolo , Verbiscer Anne , Kavelaars J. J. , Gwyn Stephen D. J. , Young Eliot F. , Weaver H. A. , Olkin Catherine B. , Parker Joel W. , Stern S. Alan 
Published: June 2018

Abstract
NASA’s New Horizons spacecraft will conduct a close flyby of the cold-classical Kuiper Belt Object (KBO) designated (486958) 2014 MU69 on 2019 January 1. At a heliocentric distance of 44 au, “MU69” will be the most distant object ever visited by a spacecraft. To enable this flyby, we have developed an extremely high-precision orbit fitting and uncertainty processing pipeline, making maximal use of the Hubble Space Telescope’s Wide Field Camera 3 (WFC3) and pre-release versions of the ESA Gaia Data Release 2 (DR2) catalog. This pipeline also enabled successful predictions of a stellar occultation by MU69 in 2017 July. We describe how we process the WFC3 images to match the Gaia DR2 catalog, extract positional uncertainties for this extremely faint target (typically 140 photons per WFC3 exposure), and translate those uncertainties into probability distribution functions for MU69 at any given time. We also describe how we use these uncertainties to guide New Horizons, plan stellar occultions of MU69, and derive MU69's orbital evolution and long-term stability.
Planetary Candidates from K2 Campaign 16
Authors: Yu Liang , Crossfield Ian J. M. , Schlieder Joshua E. , Kosiarek Molly R. , Feinstein Adina D. , Livingston John H. , Howard Andrew W. , Benneke Björn , Petigura Erik A. , Bristow Makennah , Christiansen Jessie L. , Ciardi David R. , Crepp Justin R. , Dressing Courtney D. , Fulton Benjamin J. , Gonzales Erica J. , Hardegree-Ullman Kevin K. , Henning Thomas , Isaacson Howard , Lépine Sébastien , Martinez Arturo O. , Morales Farisa Y. , Sinukoff Evan 
Published: June 2018

Abstract
Given that Campaign 16 of the K2 mission is one of just two K2 campaigns observed so far in “forward-facing” mode, which enables immediate follow-up observations from the ground, we present a catalog of interesting targets identified through photometry alone. Our catalog includes 30 high-quality planet candidates (showing no signs of being non-planetary in nature), 48 more ambiguous events that may be either planets or false positives, 164 eclipsing binaries, and 231 other regularly periodic variable sources. We have released light curves for all targets in C16 and have also released system parameters and transit vetting plots for all interesting candidates identified in this paper. Of particular interest is a candidate planet orbiting the bright F dwarf HD 73344 (V = 6.9, K = 5.6) with an orbital period of 15 days. If confirmed, this object would correspond to a 2.56 ± 0.18 R
⊕ planet and would likely be a favorable target for radial velocity characterization. This paper is intended as a rapid release of planet candidates, eclipsing binaries, and other interesting periodic variables to maximize the scientific yield of this campaign, and as a test run for the upcoming TESS mission, whose frequent data releases call for similarly rapid candidate identification and efficient follow up.
Introducing CGOLS: The Cholla Galactic Outflow Simulation Suite
Authors: Schneider Evan E. , Robertson Brant E. 
Published: June 2018

Abstract
We present the Cholla Galactic OutfLow Simulations (CGOLS) suite, a set of extremely high resolution global simulations of isolated disk galaxies designed to clarify the nature of multiphase structure in galactic winds. Using the GPU-based code Cholla, we achieve unprecedented resolution in these simulations, modeling galaxies over a 20 kpc region at a constant resolution of 5 pc. The simulations include a feedback model designed to test the effects of different mass- and energy-loading factors on galactic outflows over kiloparsec scales. In addition to describing the simulation methodology in detail, we also present the results from an adiabatic simulation that tests the frequently adopted analytic galactic wind model of Chevalier & Clegg. Our results indicate that the Chevalier & Clegg model is a good fit to nuclear starburst winds in the nonradiative region of parameter space. Finally, we investigate the role of resolution and convergence in large-scale simulations of multiphase galactic winds. While our largest-scale simulations show convergence of observable features like soft X-ray emission, our tests demonstrate that simulations of this kind with resolutions greater than 10 pc are not yet converged, confirming the need for extreme resolution in order to study the structure of winds and their effects on the circumgalactic medium.
Linear Tidal Vestige Found in the WM Sheet
Authors: Lee Jounghun , Kim Suk , Rey Soo-Chang 
Published: June 2018

Abstract
We present a vestige of the linear tidal influence on the spin orientations of the constituent galaxies of the WM sheet discovered in the vicinity of the Virgo Cluster and the Local Void. The WM sheet is chosen as an optimal target since it has a rectangular parallelepiped-like shape whose three sides are in parallel with the supergalactic Cartesian axes. Determining three probability density functions of the absolute values of the supergalactic Cartesian components of the spin vectors of the WM sheet galaxies, we investigate their alignments with the principal directions of the surrounding large-scale tidal field. When the WM sheet galaxies located in the central region within the distance of 2 h
−1 Mpc are excluded, the spin vectors of the remaining WM sheet galaxies are found to be weakly aligned, strongly aligned, and strongly anti-aligned with the minor, intermediate, and major principal directions of the surrounding large-scale tidal field, respectively. To examine whether or not the origin of the observed alignment tendency from the WM sheet is the linear tidal effect, we infer the eigenvalues of the linear tidal tensor from the axial ratios of the WM sheet with the help of the Zeldovich approximation and conduct a full analytic evaluation of the prediction of the linear tidal torque model for the three probability density functions. A detailed comparison between the analytical and the observational results reveals a good quantitative agreement not only in the behaviors but also in the amplitudes of the three probability density functions.
CLUMP-3D: Three-dimensional Shape and Structure of 20 CLASH Galaxy Clusters from Combined Weak and Strong Lensing
Authors: Chiu I-Non , Umetsu Keiichi , Sereno Mauro , Ettori Stefano , Meneghetti Massimo , Merten Julian , Sayers Jack , Zitrin Adi 
Published: June 2018

Abstract
We perform a three-dimensional triaxial analysis of 16 X-ray regular and 4 high-magnification galaxy clusters selected from the CLASH survey by combining two-dimensional weak-lensing and central strong-lensing constraints. In a Bayesian framework, we constrain the intrinsic structure and geometry of each individual cluster assuming a triaxial Navarro–Frenk–White halo with arbitrary orientations, characterized by the mass

, halo concentration

, and triaxial axis ratios (

), and investigate scaling relations between these halo structural parameters. From triaxial modeling of the X-ray-selected subsample, we find that the halo concentration decreases with increasing cluster mass, with a mean concentration of

at the pivot mass

. This is consistent with the result from spherical modeling,

. Independently of the priors, the minor-to-major axis ratio

of our full sample exhibits a clear deviation from the spherical configuration (

at

with uniform priors), with a weak dependence on the cluster mass. Combining all 20 clusters, we obtain a joint ensemble constraint on the minor-to-major axis ratio of

and a lower bound on the intermediate-to-major axis ratio of

at the 2σ level from an analysis with uniform priors. Assuming priors on the axis ratios derived from numerical simulations, we constrain the degree of triaxiality for the full sample to be

at

, indicating a preference for a prolate geometry of cluster halos. We find no statistical evidence for an orientation bias (

), which is insensitive to the priors and in agreement with the theoretical expectation for the CLASH clusters.
Chemical Survey toward Young Stellar Objects in the Perseus Molecular Cloud Complex
Authors: Higuchi Aya E. , Sakai Nami , Watanabe Yoshimasa , López-Sepulcre Ana , Yoshida Kento , Oya Yoko , Imai Muneaki , Zhang Yichen , Ceccarelli Cecilia , Lefloch Bertrand , Codella Claudio , Bachiller Rafael , Hirota Tomoya , Sakai Takeshi , Yamamoto Satoshi 
Published: June 2018

Abstract
The chemical diversity of gas in low-mass protostellar cores is widely recognized. In order to explore the origin of this diversity, a survey of chemical composition toward 36 Class 0/I protostars in the Perseus molecular cloud complex, which are selected in an unbiased way under certain physical conditions, has been conducted with IRAM 30 m and NRO 45 m telescope. Multiple lines of C2H, c-C3H2, and CH3OH have been observed to characterize the chemical composition averaged over a 1000 au scale around the protostar. The derived beam-averaged column densities show significant chemical diversity among the sources, where the column density ratios of C2H/CH3OH are spread out by two orders of magnitude. From previous studies, the hot corino sources have abundant CH3OH but deficient C2H, their C2H/CH3OH column density ratios being relatively low. In contrast, the warm-carbon-chain chemistry (WCCC) sources are found to reveal the high C2H/CH3OH column density ratios. We find that the majority of the sources have intermediate characters between these two distinct chemistry types. A possible trend is seen between the C2H/CH3OH ratio and the distance of the source from the edge of a molecular cloud. The sources located near cloud edges or in isolated clouds tend to have a high C2H/CH3OH ratio. On the other hand, the sources having a low C2H/CH3OH ratio tend to be located in the inner regions of the molecular cloud complex. This result gives an important clue toward understanding the origin of the chemical diversity of protostellar cores in terms of environmental effects.
Magnetohydrodynamics with GAMER
Authors: Zhang Ui-Han , Schive Hsi-Yu , Chiueh Tzihong 
Published: June 2018

Abstract
GAMER, a parallel Graphic-processing-unit-accelerated Adaptive-MEsh-Refinement (AMR) hydrodynamic code, has been extended to support magnetohydrodynamics (MHD) with both the corner-transport-upwind and MUSCL-Hancock schemes and the constraint transport technique. The divergent preserving operator for AMR has been applied to reinforce the divergence-free constraint on the magnetic field. GAMER-MHD has fully exploited the concurrent executions between the graphic process unit (GPU) MHD solver and other central processing unit computation pertinent to AMR. We perform various standard tests to demonstrate that GAMER-MHD is both second-order accurate and robust, producing results as accurate as those given by high-resolution uniform-grid runs. We also explore a new 3D MHD test, where the magnetic field assumes the Arnold–Beltrami–Childress configuration, temporarily becomes turbulent with current sheets, and finally settles to a lowest-energy equilibrium state. This 3D problem is adopted for the performance test of GAMER-MHD. The single-GPU performance reaches 1.2 × 108 and 5.5 × 107 cell updates per second for the single- and double-precision calculations, respectively, on Tesla P100. We also demonstrate a parallel efficiency of ∼70% for both weak and strong scaling using 1024 XK nodes on the Blue Waters supercomputers.
Phase I Study on Safety and Pharmacokinetics of a Novel Influenza Endonuclease Inhibitor, AL-794 (JNJ-64155806), following Single- and Multiple-Ascending doses in Healthy Adults
Authors: Kakuda Thomas N , Yogaratnam Jeysen , Rito Jennifer , Boyce Malcolm , Mitchell Toni , Gupta Kusum , Symons Julian A , Chanda Sushmita , Remoortere Pieter Van , Fry John 
Published: June 2018

Background This double-blind, first-in-human Phase I study evaluated pharmacokinetics, safety and tolerability of AL-794 (prodrug of ALS-033719), a potent endonucle-ase inhibitor of influenza A and B in healthy volunteers. Methods Healthy adult volunteers were randomized to AL-794 (50–2,000 mg single ascending doses, fasting) or placebo (5 cohorts, n=6:2 AL-794: placebo/cohort) in part 1, and AL-794 (50–600 mg multiple ascending doses, twice-daily, fed or fasted) or placebo (3 cohorts, n=8:2 AL-794: placebo/cohort) for 7 days in part 2. In part 3, 8 healthy volunteers from part 1 received 450 mg AL-794 ( n=6) or placebo ( n=2) following a high-fat meal. All dosing was done with an oral suspension. Blood and urine samples for pharmacokinetics were collected at scheduled times and analysed for ALS-033719 and ALS-033927 (inactive glucuronide) plasma concentrations using LC-MS/MS. Results ALS-033719 plasma concentrations increased dose proportionately up to 150 mg but less than proportionately above 150 mg. Steady-state was generally achieved by the third dose. ALS-033719 exposure increased following administration with a standard meal (19%–33%) or high-fat meal (3–3.6-fold). ALS-033927 was the major metabolite observed. Renal elimination was negligible (0.2%). Seventeen AL-794-treated healthy volunteers reported ≥1 treatment-emergent adverse event (TEAE; part 1: n=6, 24%; part 2: n=11, 69%). The most common TEAEs were headache (part 1: n=3; part 2: n=5) and dizziness (part 1: n=2; part 2: n=6). Conclusions AL-794 up to 200 mg twice daily achieved ALS-033719 exposures which are expected to be efficacious and were generally tolerated. Further studies are planned to characterize safety and antiviral activity.
Scolarisation d’élèves en situation de handicap : conceptions et pratiques d’une enseignante « ordinaire » et d’une enseignante spécialisée
Authors: Saunier Déborah , Toullec-Théry Marie 
Published: June 2018

Notre étude vise à comprendre les tensions qui existent entre ce que pensent et font deux enseignantes, l’une spécialisée, l’autre « ordinaire », scolarisant chacune un élève dys-exécutif dans leur classe. Nos questions de recherche portent sur leurs conceptions, vues comme une partie des déjà-là qu’elles véhiculent sur le handicap, sur l’inclusion scolaire et sur les pratiques d’adaptation qu’elles mettent en place pour deux élèves en situation de handicap. Notre analyse s’ancre dans le cadre théorique et méthodologique de la didactique clinique et se centre sur le concept de rapport à l’épreuve décomposé en deux dimensions : le sujet supposé savoir et l’impossible à supporter, sans laisser de côté les assujettissements extérieurs auxquels les enseignantes peuvent être soumises. Nos résultats mettent en évidence une tension entre les déjà-là de ces enseignantes et leurs pratiques effectives. Ils réaffirment également l’importance de l’accompagnement des enseignants, par l’institution, pour effectuer les transformations nécessaires qui mènent à l’école inclusive.
Le complexe de la dénatalité. L’argument démographique dans le débat sur la prévention des naissances en France (1956-1967)
Authors: De Luca Barrusse Virginie 
Published: June 2018

À partir de 1956, les efforts menés par le Mouvement français pour le planning familial en faveur de l’abrogation de la loi du 31 juillet 1920 réprimant la provocation à l’avortement et la propagande anticonceptionnelle donnent lieu à un intense débat médiatique. Ils aboutiront le 28 décembre 1967 avec le vote de la loi dite Neuwirth. L’argument démographique auquel recourent les intervenants dans ce débat apparaît à la fois le plus insistant et le plus tenace. Ils appellent à la vigilance quant aux conséquences démographiques de la modification de cette loi. Cet article en examine l’argument démographique, c’est-à-dire le recours à un raisonnement faisant appel à des considérations de nature diverse sur la population en tant qu’unité collective, géographiquement et historiquement située. Il est le produit d’une sensibilité démographique qui conduit à l’expression de valeurs relativement partagées dans l’espace médiatique, en particulier la « valeur natalité » qui traduit la préférence pour un niveau de naissances assurant la croissance démographique.