bluuebunny/crossref_metadata_2025_split huggingface dataset:
Models of the Mass-ejection Histories of Pre-planetary Nebulae. III. The Shaping of Lobes by Post-AGB Winds
Authors: Balick Bruce , Frank Adam , Liu Baowei 
Published: May 2019

Abstract
We develop a physical framework for interpreting high-resolution images and kinematics of pre-planetary nebulae (“prePNe”). We use hydrodynamical models to infer the historical properties of fast collimated nuclear flows (“jet”) that successfully form hollow, candle-shaped lobes over ≈103 yr, including the density, momenta, and geometry of the jet and its environment. Next we vary the most influential parameters of this “baseline” model to investigate how changes in the flow parameters affect the model outcomes after 900 yr. Several generic conclusions emerge, such as the injected flows that create the hollow lobes must be light, “tapered,” and injected considerably faster than the lobe expansion speed. Multipolar and starfish prePNe probably evolve from wide-angle flows in which thin-shell instabilities corrugate their leading edges. We show how the common linear correlation of Doppler shift and position along the lobe is a robust outcome of the interaction of tapered diverging streamlines with the lobes’ curved walls. Finally, we probe how modest toroidal magnetic fields added to the fast flow affect the outcome of the baseline model. We conclude that the light, field-free, tapered baseline flow model is not only a successful and universal paradigm for unraveling the histories of lobe formation in prePNe, but also provides a comprehensive, inclusive framework for understanding the details of the shapes, sizes, and internal kinematics of their edges.
The Inner Disk and Accretion Flow of the Close Binary DQ Tau
Authors: Muzerolle James , Flaherty Kevin , Balog Zoltan , Beck Tracy , Gutermuth Robert 
Published: May 2019

Abstract
We present multiepoch optical and near-infrared (NIR) photometry and spectroscopy of the spectroscopic binary T Tauri star DQ Tau. The photometric monitoring, obtained using SMARTS ANDICAM, recovers the previously seen correlation between optical flux and the 15.8 day binary orbital period, with blue flux peaks occurring close to most observed periastron passages. For the first time, we find an even more consistent correlation between orbital period and NIR brightness and color. The onset of pulse events in the NIR precedes those in the optical by a few days, on average, with the rise usually starting near apastron orbital phase. We further obtained five epochs of spectroscopy using Infrared Telescope Facility (IRTF) SpeX, with a wavelength range of 0.8–5 μm, and derived spectra of the infrared excess emission. The shape and strength of the excess varies with time, with cooler and weaker characteristic dust emission (T ∼ 1100–1300 K) over most of the binary orbit, and stronger/warmer dust emission (T ∼ 1600 K, indicative of dust sublimation) just before periastron passage. We suggest that our results are broadly consistent with predictions of simulations of disk structure and accretion flows around close binaries, with the varying dust emission possibly tracing the evolution of accretion streams falling inward through a circumbinary disk cavity and feeding the accretion pulses traced by the optical photometry and NIR emission lines. However, our results also show more complicated behavior that is not fully explained by this simple picture, and will require further observations and modeling to fully interpret.
Collision and Radiative Rates for Infrared to Extreme Ultraviolet Lines of S iii
Authors: Tayal S. S. , Zatsarinny O. , Sossah A. M. 
Published: May 2019

Abstract
Electron excitation collision strengths for a wide range of transitions giving rise to infrared, optical, ultraviolet, and extreme ultraviolet lines of S iii have been calculated using the B-spline Breit–Pauli R-matrix method. The term-dependent non-orthogonal orbitals have been employed for the accurate representation of target wave functions and the electron plus S iii target scattering system. The multiconfiguration Hartree–Fock method has been utilized for the calculation of 198 S iii fine-structure level energies belonging to the

,

,

, and 3s3p
25s configurations. The transition probabilities between fine-structure levels have also been calculated and compared with available other calculations. The close-coupling expansion includes these 198 fine-structure levels of S iii in the electron collision calculations. The effective collision strengths are calculated at electron temperatures in the range of 103–106 K for all possible transitions between the 198 fine-structure levels. The present calculation includes a larger number of levels in the close-coupling expansion and improved target description than previous calculations and should be useful for the analysis of measured spectra from various astrophysical objects. Comparison with other calculations is used to assess likely uncertainties in the existing collision and radiative rates for S iii. The collision and radiative rates are estimated to be accurate to about 20% or better for most main transitions of astrophysical importance.
Performance Assessment of a Fully Automated Deep Sequencing Platform for HCV Resistance Testing
Authors: Rodriguez Christophe , Mercier-Darty Mélanie , Soulier Alexandre , Poiteau Lila , Wlassow Mélanie , Fourati Slim , Hézode Christophe , Pawlotsky Jean-Michel , Chevaliez Stéphane 
Published: May 2019

Background International liver society guidelines recommended to perform HCV resistance testing at baseline of first-line therapy with certain combination regimens or prior to retreatment in patients previously exposed to a direct-acting antiviral (DAA) containing regimen. Currently, no standardized assays have been developed as purchasable kits for HCV resistance testing. The aim of this study was to evaluate the performance of the Sentosa SQ HCV Genotyping Assay, a novel deep sequencing-based assay, to identify resistance-associated substitutions (RASs) in the NS3 protease, NS5A protein domain I and NS5B polymerase regions for patients infected with HCV genotypes-1a and 1b. Methods Serum samples collected from patients with chronic hepatitis C infection who failed to achieve a sustained virological response after receiving a DAA-containing treatment regimen were extracted and sequenced by two methods including population sequencing of the NS3, NS5A and NS5B coding region reference method and the deep sequencing-based Sentosa SQ HCV Genotyping Assay. Results A high concordance rate with Sanger sequencing, the reference method, was found for the NS3, NS5A and NS5 coding regions, regardless of the genotype-1 subtypes. The deep sequencing-based assay was more sensitive than population sequencing to detect minority variants, representing less than 10% of the viral populations, but also some variants representing up to 30% of the viral quasispecies, as expected. Conclusions The Sentosa SQ HCV Genotyping Assay can be confidently used in clinical practice in the indications of HCV resistance testing for these subtypes. Technical improvements are now required to allow for pangenotypic coverage.
Post-Traumatic Heterotopic Ossification About the Elbow
Authors: Ilahi Omer A , Strausser David W , Gabel Gerard T 
Published: May 2019

ABSTRACT
To evaluate the effect of surgical timing on the formation of heterotopic ossification about the elbow, 71 consecutive patients with elbow trauma requiring operative management were evaluated. Fourteen patients were excluded because they suffered from head injury, burns, or severe open injuries requiring surgery on two or more occasions. Sixteen patients were lost to follow-up, leaving a group of 41 patients. The average age of patients was 35 years. The fractures involved the olecranon in 19, distal humerus in 12, and radial head/neck in 10 patients. Six of these fractures were accompanied by a dislocation. Eleven were open injuries; the remaining 30 were closed. Bone grafting was performed in nine patients. The interval between injury and surgical intervention averaged 57 hours.
None (0%) of 17 patients treated within 48 hours developed grade II, III, or IV heterotopic ossification, whereas 8 (33%) of 24 patients treated after 48 hours developed grade II, III, or IV heterotopic ossification. There were no significant differences in demographic or injury parameters between these two groups. These findings suggest that fixation of unstable elbow fractures within 48 hours of injury may reduce the formation of ectopic bone.
Smart Digital for Mobile Communication Through TVUPI Streaming for Higher Education
Authors: Darmawan Deni , Suryadi Edi , Wahyudin Dinn 
Published: May 2019

This study focuses on smart digital for mobile communication through television streaming. It makes use of the television station located in Universitas Pendidikan Indonesia (UPI) which requires further development. In 2017, research was carried out to develop web streaming and Mobile Audience through Smart Digital Mobile. However, this study uses a research and development approach comprising of 10 main steps some of which are broadcast programs needed in education and local wisdom. The UPI TV Station gained then complete trust from all segments of viewers from the internal academic community. The content test and ease of access are expected to get an overview of the information needs of campus television by the wider community. The results of this project are as follows : (a) Syllabus and SAP Tools in Education Communication courses; (b) Evaluation of the sustainability programs of TVUPI broadcast based on the web streaming; and (c) Mobile Smart Digital Development in expanding the reach of TVUPI viewers based on web streaming.
Characteristics for the External Identification of Black Carp From Grass Carp
Authors: Kroboth Patrick T. , Chapman Duane C. , Hrabik Robert A. , Neely David A. 
Published: May 2019

AbstractBlack Carp Mylopharyngodon piceus and Grass Carp Ctenopharyngodon idella are morphologically similar species native to eastern Asia and imported to North America as biological control organisms. Preferred identification methods are coloration and pharyngeal tooth form. Grass Carp possess serrated teeth and Black Carp molariform teeth. Examination of pharyngeal teeth causes extensive damage to a specimen and is labor and time intensive. Coloration can vary within a species and fades with preservation. We present a suite of external characteristics consisting of a truss network canonical variate analysis of distance measurements among landmarks on the lateral view of the head of each fish, the ratio of head length to mouth width, the visible presence of the premaxilla viewed dorsally with the mouth fully closed, and anterior lateral line angles among scales. Canonical variate analysis suggested that Grass Carp have a deeper head at the preoperculum and Black Carp a more elongate head relative to the preoperculum and eye. Comparisons of head length to mouth width ratio, visibility of the premaxilla dorsally with the mouth fully closed, and anterior lateral line angles all served as external characteristics of species, but outliers were present for each method. Because of the plastic morphology of wild populations, we suggest that a combination of characters be applied for identification.
« J’ai peur quand je fais le docteur pour mes enfants » : l’automédication au cœur des pratiques de soins des jeunes enfants à Antananarivo, Madagascar
Authors: Mattern Chiarella 
Published: May 2019

Le présent article s’appuie sur un corpus de données récoltées à Antananarivo, la capitale malgache, entre avril et août 2015. L’objectif de cet article est l’analyse des conditions sociales de production de la pratique de l’automédication pour les jeunes enfants en cas de survenue de maux dits « du quotidien ». Il interroge le recours aux acteurs privés et informels de la vente de médicaments pharmaceutiques, les modalités d’acquisition et les usages qui en sont faits, à la lueur des savoirs populaires sur le médicament. Nos résultats montrent que les médicaments sont au cœur des pratiques thérapeutiques des Tananariviens. Dans la gestion quotidienne et domestique des maladies, les choix sont basés sur une volonté pragmatique de guérison à moindre coût. Au regard des pratiques de recours aux soins des adultes, majoritairement caractérisées par l’autoconsommation de médicaments, les pratiques de soins du jeune enfant diffèrent. Cet article éclaire les spécificités des pratiques de soins de l’enfant, qui cristallisent à la fois les représentations autour de la santé de l’enfant et la défiance à l’égard de certains produits pharmaceutiques.
Automédication et pluralisme thérapeutique : la construction du choix du remède et du thérapeute dans une localité rurale à Madagascar
Authors: Didier Pierrine 
Published: May 2019

À Madagascar, les pratiques de soins traditionnelles côtoient celles de la biomédecine et sont encore largement utilisées pour des raisons d’ordre économique et géographique, mais également politique, social, culturel, voire religieux. Les individus consomment aussi bien des remèdes à base de plantes médicinales que des médicaments allopathiques, par automédication, sur prescription d’un médecin ou de personnel soignant ou sur conseil de guérisseurs. Cet article examine les éléments ethnographiques recueillis lors d’enquêtes réalisées à Madagascar, dans un village de la région Analanjirofo (côte est). Il présente l’offre de soins disponible pour les villageois et le pluralisme thérapeutique à l’œuvre dans leur quête de soins. Le choix du remède et du thérapeute s’opère selon le type de traitement recherché et le modèle étiologique supposé des symptômes ou de la maladie (dite « naturelle » ou « surnaturelle »). L’expérience vécue du malade, l’avis du « groupe organisateur de thérapie » ainsi que les représentations de l’efficacité des remèdes sont autant d’éléments qui entrent en jeu dans le choix du traitement et la façon de le consommer (en automédication ou chez le thérapeute). La recherche de soins, de remèdes et de thérapeutes peut ainsi être analysée comme une forme « d’automédication différée ».
Modelo para la gestión de la innovación en las micro, pequeñas y medianas empresas (mipymes) en Colombia
Authors: Cely Rojas Jose Eisenover 
Published: May 2019

Este trabajo se presenta como resultado de un proceso investigativo, que parte de las inquietudes generadas por los hallazgos de la primera investigación de la Red de Estudios sobre Innovación, adelantado en concurso por diez de las principales universidades colombianas y el Observatorio Colombiano de Ciencia y Tecnología (OCYT), el cual puntualiza que las Mipymes colombianas presentan escasos e insipiente resultados de innovación, en la mayoría de los casos (98%), las empresas carecen de conocimiento y recursos para su desarrollo, así como de una estructura organizacional y relaciones de apoyo que soporten este tipo de ejercicios; en consecuencia esta situación incide en gran medida en las posibilidades de perdurabilidad y capacidad competitiva de este tipo de organizaciones. La propuesta de modelo de gestión de la innovación en Mipymes de Colombia, que aquí se presenta, denominado como “Modelo de la Triada”, representa y describe el sistema de factores tanto internos como externos que definen la realidad de las empresas y que por sus características determinan las posibilidades de desarrollar procesos de innovación. El modelo busca explicar y caracterizar los condicionantes a tener en cuenta para promover la innovación en las organizaciones, propone una estructura de estudio y análisis formal que permite establecer las bases para el diagnóstico de problemas relacionados con la gestión de la innovación, útil para la toma de decisiones, la configuración de planes y estrategias para la gestión a este nivel. El modelo distingue cuatro grupos generales de Factores: Factores claves o de primer nivel, factores relevantes o de segundo nivel, factores determinantes o de tercer nivel y factores contextuales; que inician estableciéndose en el ámbito externo de las empresas y que repercuten en la configuración de factores del entorno interno de las organizaciones.
Evaluación de la integración financiera entre los países pertenecientes al Mercado Integrado Latinoamericano
Authors: Duarte Duarte Juan Benjamín , Garcés Carreño Laura Daniela , Vargas Ayala Silvia Juliana , Vásquez González Valentina María 
Published: May 2019

El Mercado Integrado Latinoamericano – MILA – fue creado con el fin de fomentar el desarrollo de los mercados de renta variable de los países miembros, a través de un único mediador para la realización de transacciones entre los diferentes mercados de valores, eliminando barreras transaccionales, que promuevan un mayor flujo de capitales entre las economías de Chile, Colombia, México y Perú, con el fin de aumentar su competitividad. El presente trabajo se enfoca en evaluar la integración financiera entre los países que pertenecen al MILA en el periodo comprendido entre abril de 2008 y marzo de 2018 con base en los datos de las bolsas de valores más representativas de cada país y haciendo uso de una metodología de análisis de correlaciones mejorada a partir inferencia estadística, la cual a pesar de brindar mejores herramientas a la hora de realizar el análisis, no resulta del todo concluyente, debido a que los valores de las correlaciones promedio no alcanzan ni siquiera el 50%.
Modding de equipos informáticos como herramienta de aprendizaje en áreas STEM
Authors: Ortigosa Nuria , Rodríguez Ruiz Alberto 
Published: May 2019

El empleo de actividades que permitan mantener activo el interés al alumnado en distintas materias es un instrumento fundamental para mejorar el aprendizaje y ampliar conocimientos en todas las áreas educativas. Modding, derivado de la jerga inglesa modify (modificar), es una técnica consistente en cambiar varios aspectos de equipos informáticos. Por un lado, hacer más atractiva la parte física del ordenador y, por otro, mejorar las prestaciones de dichos equipos. Mediante la experiencia Modding presentada en este trabajo, a los estudiantes se les plantea un concurso dentro de las áreas denominadas STEM (Science, Technology, Engineering and Mathematics) con el propósito de mejorar, tanto visualmente como en términos de rendimiento, equipos informáticos, muchos de ellos en desuso, pero todavía funcionales. El concurso está abierto a todos los niveles del centro educativo, de forma interdisciplinar, ya que son varios los departamentos y asignaturas que pueden participar por encontrarse recogidos parte de los contenidos trabajados en la actividad dentro del currículo docente. Además, dicha interdisciplinariedad se amplía también a niveles de educación superior, haciendo partícipe del concurso al Departamento de Informática de la Universitat de València. En concreto, este último será el encargado de presentar a los participantes las distintas mejoras a nivel hardware y software que se pueden incluir para mejorar el rendimiento de equipos, como por ejemplo la refrigeración líquida, o la importancia de la ventilación en sus prototipos.
E-textiles para la formación de profesorado en las áreas STEM
Authors: Guimerans Sanchez Paola 
Published: May 2019

En este artículo se aborda la formación del profesorado de educación primaria y secundaria con el objetivo de capacitarlo para el diseño y la aplicación de propuestas didácticas innovadoras enmarcadas en el enfoque STEAM. Se valora la importancia que posee el área multidisciplinar de los e-textiles en la educación y se argumenta cómo el kit de construcción Lilypad Arduino puede conformar una pieza clave para que funcionen al mismo nivel todas estas materias en el aula. En este trabajo se describen dos talleres teórico-prácticos, que cuentan con la participación de un total de 32 profesores expertos en diferentes especialidades. Estas acciones educativas se incluyen en el marco de una colaboración entre la autora del texto y los organizadores de proyectos de innovación educativa Aula 3i, que promueven las áreas de Innovación y Nuevas Tecnologías del Cabildo de Fuerteventura y el Parque Tecnológico de Fuerteventura.
Um estudo sobre o perfil do administrador através da teoria das inteligências múltiplas em amostras pareadas
Authors: Fernandes Levi Leonido , Bezerra Sefisa , Morgado Elsa , Cardoso Mário , Aragão Luis André 
Published: May 2019

Esse estudo pretende reconhecer e analisar o perfil do estudante do curso de Administração de uma Universidade pública localizada no Estado do Ceará-Brasil e o desenvolvimento das suas inteligências múltiplas, principalmente as interpessoal e intrapessoal, no decorrer do tempo. Trata-se da confrontação dos resultados desse mesmo estudo (parte da tese da autora) realizado no início do ano de 2015, sendo portanto, um estudo quantitativo, de campo, longitudinal, com amostras pareadas de 30% da quantidade da turma que iniciou em janeiro daquele ano. No que concerne ao tratamento e análise dos dados recolhidos foram privilegiados procedimentos estatísticos através da utilização do software estatístico SPSS (Statistical Package for the Social Science), utilizando também os dados da pesquisa anterior e fazendo um estudo comparativo antes-depois ou seja, amostras pareadas. A reaplicação da pesquisa permitiu verificar o crescimento e desenvolvimento das inteligências dos alunos no decorrer do curso e, paralelamente, consolidou a atuação da universidade como locus do saber, mantendo-se sempre que considerar a necessidade de melhoria contínua e da busca de novos métodos de aprendizagem.
Reaching professional skills with the Final Master Thesis: Collaboration towards actual solutions
Authors: Comeig-Ramírez Irene , Grau-Grau Alfredo Juan , Pinar-García Lucía , Ramírez-López Federico , Rodrigo-González Amalia 
Published: May 2019

In order to motivate the student through a professional experience, and to improve the teaching-learning process by letting the student gain experience, we implement a collaborative learning-through-service methodology. This method increases the student involvement level and the deep understanding of the tools. As a matter of example, we present the implementation of this method in the Final Master Thesis (FMTh) of the Master on Corporate Finance at the University of Valencia (UV). In these FMTh, students have to valuate an actual innovation developed by UV researchers (on chemistry, in this case) with the goal of helping them to transfer (sell) this innovation to the industry. This collaborative learning-through-service methodology helps students put into practice the technics learned in the Master and give them a strong sense of the financial professional practice.