bluuebunny/crossref_metadata_2025_split huggingface dataset:
Estudio exploratorio: El efecto de la música en el placer de los clientes mientras esperan por la prestación de un servicio dental
Authors: Talavera Orshini Dinorah D. 
Published: April 2019

Sinopsis de las siguientes tesis: La actitud de los estudiantes del programa de iniciativa empresarial de la Universidad de Puerto Rico, Recinto de Río Piedras, hacia las franquicias, Análisis sobre la implantación y funcionamiento de los Planes de Retiro 401 (K) en Puerto Rico, Estudio exploratorio: El efecto de la música en el placer de los clientes mientras esperan por la prestación de un servicio dental, Las consideraciones de los clientes en el diseño de viviendas para ancianos: Una exploración a fondo.
LA INNOVACIÓN Y EL NUEVO PRODUCTO EN DESARROLLO
Authors: Jácome Lara Ibett , Albán Bautista Martha 
Published: April 2019

La innovación actualmente cumple un papel fundamental para enfrentar la crisis económica en un mundo globalizado, donde se propende al desarrollo económico, creando un entorno que favorezca la difusión de ideas para alcanzar el bienestar social mediante un crecimiento económico sostenido. La presente revisión de la literatura aportará al conocimiento en la identificación de los principales conceptos de innovación y su aplicación en el desarrollo de nuevos productos. En la actualidad la innovación se ha convertido en una prioridad de las políticas públicas, así como una necesidad imperiosa de las grandes, pequeñas y medianas empresas, tanto en el ámbito empresarial y en sectores como en la educación, salud, ecología y política, entre otros. Este tema constituye un elemento importante porque engloba procesos relacionados con el mercado, tecnologías de información y comunicación, actividades empresariales, redes y competencia, así como también habilidades, organizaciones, creatividad y transferencia de conocimientos. Su aplicación se puede dar en cualquier ámbito de la organización (finanzas, administración, ventas) en el caso de la presente investigación centraremos el estudio en la innovación en los productos o servicios debido a que la innovación permite el desarrollo de los mismos, manteniendo una competitividad en el mercado obteniendo resultados tanto económicos, sociales, tecnológicos y de prestigio.
Estudio CTS de un sistema de orientación vocacional profesional virtual para los jóvenes que aspiran ingresar en las carreras universitarias de la universidad técnica de Manabí, Ecuador
Authors: Santana Sardi Gustavo , Vigueras Moreno José , Velásquez Ávila René 
Published: April 2019

La Orientación Vocacional Profesional en la gestión de ingreso a la Universidad incluye la implementación de nuevos sistemas que fortalezcan el trabajo del Centro de Promoción y Apoyo (CPAI) al Ingreso de la Universidad Técnica de Manabí (UTM). La necesidad de reforzar el potencial y las bondades de este centro conduce al objetivo de este estudio: proponer un sistema virtual como alternativa hacia la Orientación Vocacional Profesional de los jóvenes que aspiran ingresar en las carreras universitarias en el Ecuador, a través de una investigación descriptiva aplicando métodos teóricos, empíricos y estadísticos, que dan como resultado, la posible obtención de nuevos espacios de aprendizaje, lo cual puede constituir un valor académico complementario satisfactorio.
La clase encuentro en la educación superior: algunas consideraciones teóricas -metodólogicas
Authors: Marín Llaver Leonardo Ramón , Suárez Meana José | Manuel , López González Yaikel , Pelegrín Naranjo Analien 
Published: April 2019

El proceso de enseñanza – aprendizaje de la educación superior reclama de nuevas formas de organización del proceso pedagógico; por lo tanto se hace necesario el cambio en el rol protagónico del que enseña y del que aprende, lo cual trae consigo que la concepción de aprendizaje desarrollador y didáctica desarrolladora se efectué a través de diferentes formas organizativas y una de ellas es la clase encuentro. Es objetivo de este ensayo reflexionar sobre algunas cuestiones teóricas – metodológicas en torno a la clase encuentro como herramienta para lograr una mayor efectividad y eficacia en el aprendizaje de los estudiantes universitarios. En su elaboración, se emplearon métodos de investigación del nivel teórico que permitieron el procesamiento de la información, la caracterización del objeto de investigación, determinar sus fundamentos teóricos y metodológicos. Como conclusión se destaca la gran importancia que reviste la clase encuentro en la modalidad presencial y semipresencial en la educación superior, pues contribuye como ninguna otra a favorecer el autoaprendizaje, la autoevaluación, la independencia cognoscitiva y el crecimiento personal en los estudiantes en la medida que se apropien de procedimientos y habilidades que le permitan acceder a los nuevos conocimientos.
Back to the Lithium Plateau with the [Fe/H] < −6 Star J0023+0307∗
Authors: Aguado David S. , González Hernández Jonay I. , Prieto Carlos Allende , Rebolo Rafael 
Published: April 2019

Abstract
We present an analysis of the Ultraviolet and Visual Echelle Spectrograph (UVES) high-resolution spectroscopic observations at the 8.2 m Very Large Telescope of J0023+0307, a main-sequence extremely iron-poor dwarf star. We are unable to detect iron lines in the spectrum but derive [Fe/H] < −6.1 from the Ca ii resonance lines assuming [Ca/Fe] ≥ 0.40. The chemical abundance pattern of J0023+0307, with very low [Fe/Mg] and [Ca/Mg] abundance ratios but relatively high absolute Mg and Si abundances, suggests J0023+0307 is a second generation star formed from a molecular cloud polluted by only one supernova in which the fallback mechanism played a role. We measure a carbon abundance of A(C) = 6.2 that places J0023+0307 on the low band in the A(C)–[Fe/H] diagram, suggesting no contamination from a binary companion. This star is also unique having a lithium abundance A(Li) = 2.02 ± 0.08, close to the level of the lithium plateau, in contrast with lower Li determinations or upper limits in all other extremely iron-poor stars. The upper envelope of the lithium abundances in unevolved stars spanning more than three orders of magnitude in metallicity (−6 < [Fe/H] < −2.5) defines a nearly constant value. We argue that it is unlikely that such uniformity is the result of depletion processes in stars from a significantly higher initial Li abundance, but suggests instead a lower primordial production, pointing to new physics such as decaying massive particles, varying fundamental constants, or nuclear resonances, that could have affected the primordial 7Li production.
Determining the Depth of Jupiter’s Great Red Spot with Juno: A Slepian Approach
Authors: Galanti Eli , Kaspi Yohai , Simons Frederik J. , Durante Daniele , Parisi Marzia , Bolton Scott J. 
Published: April 2019

Abstract
One of Jupiter’s most prominent atmospheric features, the Great Red Spot (GRS), has been observed for more than two centuries, yet little is known about its structure and dynamics below its observed cloud level. While its anticyclonic vortex appearance suggests it might be a shallow weather-layer feature, the very long time span for which it was observed implies it is likely deeply rooted, otherwise it would have been sheared apart by Jupiter’s turbulent atmosphere. Determining the GRS depth will shed light not only on the processes governing the GRS, but on the dynamics of Jupiter’s atmosphere as a whole. The Juno mission single flyby over the GRS (PJ7) discovered using microwave radiometer measurements that the GRS is at least a couple hundred kilometers deep. The next flybys over the GRS (PJ18 and PJ21), will allow high-precision gravity measurements that can be used to estimate how deep the GRS winds penetrate below the cloud level. Here we propose a novel method to determine the depth of the GRS based on the new gravity measurements and a Slepian function approach that enables an effective representation of the wind-induced spatially confined gravity signal, and an efficient determination of the GRS depth given the limited measurements. We show that with this method the gravity signal of the GRS should be detectable for wind depths deeper than 300 km, with reasonable uncertainties that depend on depth (e.g., ±100 km for a GRS depth of 1000 km).
Nonthermal Emission from the Interaction of Magnetized Exoplanets with the Wind of Their Host Star
Authors: Wang Xiawei , Loeb Abraham 
Published: April 2019

Abstract
We study the nonthermal emission from the interaction between magnetized Jupiter-like exoplanets and the wind from their host star. The supersonic motion of planets through the wind forms a bow shock that accelerates electrons that produce nonthermal radiation across a broad wavelength range. We discuss three wind mass-loss rates:

, 10−9,

corresponding to solar-type, T Tauri, and massive O/B-type stars, respectively. We find that the expected radio synchrotron emission from a Jupiter-like planet is detectable by the Jansky Very Large Array and the Square Kilometre Array at

out to a distance of ∼100 pc, whereas the infrared emission is detectable by the James Webb Space Telescope out to a similar distance. Inverse Compton scattering of the stellar radiation results in X-ray emission detectable by Chandra X-ray Observatory out to ∼150 pc. Finally, we apply our model to the upper limit constraints on V380 Tau, the first star–hot Jupiter system observed in radio wavelength. Our bow-shock model provides constraints on the magnetic field, the interplanetary medium, and the nonthermal emission efficiency in V380 Tau.
Globally distributed occurrences utilised in 200 spider species conservation profiles (Arachnida, Araneae)
Authors: Cardoso Pedro , Shirey Vaughn , Seppälä Sini , Henriques Sergio , Draney Michael , Foord Stefan , Gibbons Alastair , Gomez Luz , Kariko Sarah , Malumbres-Olarte Jagoba , Milne Marc , Vink Cor 
Published: April 2019

Data on 200 species of spiders were collected to assess the global threat status of the group worldwide. To supplement existing digital occurrence records from GBIF, a dataset of new occurrence records was compiled for all species using published literature or online sources, from which geographic coordinates were extracted or interpreted from locality description data.
A total of 5,104 occurrence records were obtained, of which 2,378 were from literature or online sources other than GBIF. Of these, 2,308 had coordinate data. Reporting years ranged from 1834 to 2017. Most records were from North America and Europe, with Brazil, China, India and Australia also well represented.
Se raconter à soi-même et aux autres : atelier d’écriture avec des jeunes en foyer
Authors: Lefebvre Danielle 
Published: April 2019

« Raconter constitue probablement le moyen le plus quotidien et le plus universel de mettre en forme son expérience vécue, la rendant par là même intelligible à soi-même et à autrui. Nous racontons pour partager la solitude, inhérente à notre condition humaine. »	L’article résume une expérience d’atelier d’écriture avec des jeunes venus de pays lointains et maîtrisant mal la langue française. Et pourtant, ils vont écrire d’abord avec des listes de « j’aime, je n’aime pas » et puis de manière plus mûries ; certains vont pouvoir écrire ce qu’ils n’ont pas pu dire aux adultes qui n’ont pas été là où, eux, les attendaient. L’écriture redevient alors ce qu’elle a toujours été : un espace gratuit illustrant notre liberté personnelle.
Ensemble forecasts of air quality in eastern China – Part 2: Evaluation of the MarcoPolo–Panda prediction system, version 1
Authors: Petersen Anna Katinka , Brasseur Guy P. , Bouarar Idir , Flemming Johannes , Gauss Michael , Jiang Fei , Kouznetsov Rostislav , Kranenburg Richard , Mijling Bas , Peuch Vincent-Henri , Pommier Matthieu , Segers Arjo , Sofiev Mikhail , Timmermans Renske , van der A Ronald , Walters Stacy , Xie Ying , Xu Jianming , Zhou Guangqiang 
Published: April 2019

Abstract. An operational multimodel forecasting system for air quality has been developed to
provide air quality services for urban areas of China. The initial forecasting system
included seven state-of-the-art computational models developed and executed in Europe and
China (CHIMERE, IFS, EMEP MSC-W, WRF-Chem-MPIM, WRF-Chem-SMS, LOTOS-EUROS, and
SILAMtest). Several other models joined the prediction system recently, but are not
considered in the present analysis. In addition to the individual models, a simple
multimodel ensemble was constructed by deriving statistical quantities such as the median
and the mean of the predicted concentrations. The prediction system provides daily forecasts and observational data of
surface ozone, nitrogen dioxides, and particulate matter for the 37 largest
urban agglomerations in China (population higher than 3 million in 2010).
These individual forecasts as well as the multimodel ensemble predictions for
the next 72 h are displayed as hourly outputs on a publicly accessible web
site (http://www.marcopolo-panda.eu, last access: 27 March 2019). In this paper, the performance of the prediction system (individual models and the
multimodel ensemble) for the first operational year (April 2016 until June 2017) has been
analyzed through statistical indicators using the surface observational data reported at
Chinese national monitoring stations. This evaluation aims to investigate (a) the
seasonal behavior, (b) the geographical distribution, and (c) diurnal variations of the
ensemble and model skills. Statistical indicators show that the ensemble product usually
provides the best performance compared to the individual model forecasts. The ensemble
product is robust even if occasionally some individual model results are missing. Overall, and in spite of some discrepancies, the air quality forecasting system is well
suited for the prediction of air pollution events and has the ability to provide warning
alerts (binary prediction) of air pollution events if bias corrections are applied to
improve the ozone predictions.
The “Simple” Way to Climb a Racial Mountain
Authors: Harper Donna Akiba Sullivan 
Published: April 2019

ABSTRACT
This essay examines Langston Hughes's vision and cultural politics via his fictional character Jesse B. Semple. Known as the Simple stories, Hughes's sketches were collected in five volumes published during his lifetime, including Simple Speaks His Mind (1950), Simple Takes a Wife (1953), Simple Stakes a Claim (1957), The Best of Simple (1961), and Simple's Uncle Sam (1965). A sixth volume, titled The Return of Simple, was published in 1994. The author examines the stories in relation to his 1926 essay “The Negro Artist and the Racial Mountain,” and argues that Simple's musings were largely representative of black working-class ethos in the twentieth century. At the same time, the author situates Hughes's stories in the broader context of African diasporic literary and cultural history.
Género y opinión. El rol secundario de las mujeres en los espacios periodísticos
Authors: Suárez-Romero Miriam , Ortega-Pérez Ana María 
Published: April 2019

Este artículo realiza una revisión de las autorías de los textos opinativos, con especial énfasis en el papel que han tenido las mujeres en la producción de piezas de opinión en el diario español El País. Mediante la técnica metodológica del análisis de contenido se estudia si existe un determinante de género en las rutinas productivas de este periódico. Para ello, se analizan 2621 piezas publicadas en su edición digital durante cinco años (de 2012 a 2016), haciendo especial hincapié en la evolución de los aspectos formales y contextuales orientativos de la atribución de relevancia por parte del medio y la inclusión de las periodistas en este proceso de creación. Este artículo realiza una revisión de las autorías de los textos opinativos, con especial énfasis en el papel que han tenido las mujeres en la producción de piezas de opinión en el diario español El País. Mediante la técnica metodológica del análisis de contenido se estudia si existe un determinante de género en las rutinas productivas de este periódico. Para ello, se analizan 2621 piezas publicadas en su edición digital durante cinco años (de 2012 a 2016), haciendo especial hincapié en la evolución de los aspectos formales y contextuales orientativos de la atribución de relevancia por parte del medio y la inclusión de las periodistas en este proceso de creación.
Prevalence of malocclusion and occlusal traits in the early mixed dentition in Shanghai, China
Authors: Yu Xin , Zhang Hao , Sun Liangyan , Pan Jie , Liu Yuehua , Chen Li 
Published: April 2019

BackgroundEpidemiological data on malocclusion among Chinese children are scant. The aim of this study was to provide detailed information on the prevalence of malocclusion in early mixed dentition children in Shanghai, China.MethodsA cross-sectional survey was conducted from September 2016 to April 2017, and 2,810 children aged 7- to 9- years were selected from 10 primary schools by cluster random sampling. Several occlusal parameters, including Angle molar relationship, overjet, overbite, open bite, anterior and posterior crossbite, midline displacement, scissors bite, and teeth crowding and spacing, were clinically registered by five calibrated orthodontic dentists.ResultsWe found that 79.4% children presented one or more occlusal anomalies. Angle Class I, Class II and Class III molar relationship were recorded in 42.3%, 50.9% and 5.9% of the sample, respectively. The proportion of Class III increased from 5.0% at age 7 to 7.8% at age 9. In the sagittal plane, increased overjet >3 mm was observed in 40.8% subjects, while the prevalence of severe overjet (>8 mm), anterior edge-to-edge (zero overjet) and anterior crossbite were 5.2%, 8.1% and 10.5%, respectively. Vertically, deep overbite >2/3 overlap was found in 6.2% of the children and open bite in 4.3%. Boys exhibited a higher rate of overbite than girls. For the transversal occlusal anomalies, 36.1% of the children had a midline displacement, which was followed by posterior crossbite (2.6%) and scissors bite (1.0%). Teeth space discrepancies were also common anomalies and anterior crowding (>2 mm) affecting 28.4% of the children, while anterior spacing (>4 mm) affecting 9.5%. Girls showed a higher prevalence of anterior crowding and a lower frequency of teeth spacing than boys.ConclusionsOur study demonstrated that malocclusion is prevalent among children in the early mixed dentition, and more health resources should be warranted to meet the challenge of prevention or early intervention of malocclusion.
LncRNA MIR4435-2HG predicts poor prognosis in patients with colorectal cancer
Authors: Ouyang Wen , Ren Linlin , Liu Guohong , Chi Xiaosa , Wei Hongyun 
Published: April 2019

Background
LncRNA MIR4435-2HG is observed in a variety of cancers, while its role in colorectal cancer is unknown. We aimed to demonstrate the relationship between MIR4435-2HG and colorectal cancer based on The Cancer Genome Atlas (TCGA) database.

Materials and Methods
Patients with colorectal cancer were collected from TCGA. We compared the expression of MIR4435-2HG in colorectal cancer and normal tissues with Wilcoxon rank sum test, and logistic regression was used to evaluate the relationship between MIR4435-2HG and clinicopathological characters. Moreover, Kaplan–Meier and Cox regression was performed to evaluate the correlation between MIR4435-2HG and survival rate. Gene set enrichment analysis (GSEA) was also conducted to annotate biological function of MIR4435-2HG.

Results
MIR4435-2HG level was elevated in colorectal cancer tissues. Increased level of MIR4435-2HG was significantly correlated with TNM stage (OR = 1.66 for T1/T2 vs. T3/T4; OR = 1.68 for N0 vs. N1/N2), stage (OR = 1.66 for stage 1/2 vs. stage 3/4), and carcinoembryonic antigen level before treatment (OR = 1.70 for <5 vs. ≥5) (all P-value <0.05). High MIR4435-2HG expression had a poorer progression-free survival (p = 0.048), and overall survival (OS) (P = 0.028), which were validated in the GSE92921 and GSE29621 datasets. MIR4435-2HG expression (P = 0.040, HR = 1.955 (95% CI [1.031–3.710])) was independently correlated with OS. GSEA demonstrated that the P38/MAPK pathway, the VEGF pathway, the cell adhesion molecules cams, the NOD-like receptor signaling pathway, the cell surface interactions at the vascular wall, and integrin cell surface interactions were differentially enriched in MIR4435-2HG high expression phenotype.

Conclusions
Increased MIR4435-2HG might be a potential biomarker for the diagnosis and prognosis of colorectal cancer. Moreover, MIR4435-2HG might participate in the development of colorectal cancer via the P38/MAPK and VEGF pathway.
Lifetime Acts of Violence Assessment (LAVA) predictors of laboratory aggression
Authors: King Alan R. , Russell Tiffany D. 
Published: April 2019

AbstractWhile self‐report data warrants interpretive caution in applied settings, these indices serve an important role in exploratory research. The Lifetime Assessment of Violent Acts (LAVA) inventory is a brief, reliable, face‐valid questionnaire for estimating the frequency, triggers, and consequences (including injuries to others) of prior acts of aggression. The LAVA also identifies the situational contexts in which prior violence was triggered and provides a basis for risk classifications based on past reactive, intimate partner, alcohol‐related, and/or weapon‐related violence. Scores on the LAVA indices have been linked to a range of developmental and maladjustment indicators. Associations were found between lab‐provoked (Taylor Aggression Paradigm) responding and both dimensional and risk classification scores in this sample (N = 92) of college men. Participants “competed” with a fictional opponent using electric shock as a retaliatory measure for perceived provocation. The total LAVA dimensional score predicted mean shock intensity (
d =
.87), baseline responding (
d = 0.90), and past sexual aggression (
d = 1.01). Shock intensities in response to high provocation were predicted (
M d = 0.57) by all but one LAVA index. Participants who reported inflicting one or more injuries on another showed more intense escalations of aggression (
d = 0.46) in response to provocation than normative counterparts. Prior injuries to another (
RR = 2.71), reactive acts of aggression (
RR = 3.73), or intimate‐partner violence (
RR = 4.19) elevated the risk of one or more prior acts of self‐reported sexual aggression. The limitations and potential value of self‐report data were discussed in regard to aggression research.
Functional Modules of Minimal Cell Division for Synthetic Biology
Authors: Hürtgen Daniel , Härtel Tobias , Murray Seán M. , Sourjik Victor , Schwille Petra 
Published: April 2019

AbstractCellular reproduction is one of the fundamental hallmarks of life. Therefore, the development of a minimal division machinery capable of proper genome condensation and organization, mid‐cell positioning and segregation in space and time, and the final septation process constitute a fundamental challenge for synthetic biology. It is therefore important to be able to engineer such modules for the production of artificial minimal cells. A bottom‐up assembly of molecular machines from bulk biochemicals complemented by in vivo experiments as well as computational modelling helps to approach such key cellular processes. Here, minimal functional modules involved in genome segregation and the division machinery and their spatial organization and positioning are reviewed, setting into perspective the design of a minimal cell. Furthermore, the milestones of recent in vitro reconstitution experiments in the context of cell division are discussed and their role in shedding light on fundamental cellular mechanisms that constitute spatiotemporal order is described. Lastly, current challenges in the field of bottom‐up synthetic biology as well as possible future developments toward the development of minimal biomimetic systems are discussed.