bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Helium Abundance of NGC 6791 from Modeling of Stellar Oscillations
Authors: McKeever Jean M. , Basu Sarbani , Corsaro Enrico 
Published: April 2019

Abstract
The helium abundance of stars is a strong driver of evolutionary timescales; however, it is difficult to measure in cool stars. We conduct an asteroseismic analysis of NGC 6791, an old, metal-rich open cluster that previous studies have indicated also has a high helium abundance. The cluster was observed by Kepler and has unprecedented light curves for many of the red giant branch stars in the cluster. Previous asteroseismic studies with Kepler data have constrained the age through grid-based modeling of the global asteroseismic parameters (

and

). However, with the precision of Kepler data, it is possible to do detailed asteroseismology of individual mode frequencies to better constrain the stellar parameters, something that has not been done for these cluster stars as yet. In this work, we use the observed mode frequencies in 27 hydrogen shell burning red giants to better constrain initial helium abundance (Y
0) and age of the cluster. The distributions of helium abundance and age for each individual red giant are combined to create a final probability distribution for age and helium abundance of the entire cluster. We find a helium abundance of Y
0 = 0.297 ± 0.003 and a corresponding age of 8.2 ± 0.3 Gyr.
Probing Pulsar Scattering between 120 and 280 MHz with the MWA
Authors: Kirsten F. , Bhat N. D. R. , Meyers B. W. , Macquart J.-P. , Tremblay S. E. , Ord S. M. 
Published: April 2019

Abstract
The high sensitivity and wide frequency coverage of the Murchison Widefield Array allow for the measurement of the spectral scaling of the pulsar scattering timescale, α, from a single observation. Here we present three case studies targeted at bright, strongly scattered pulsars J0534+2200 (the Crab pulsar), J0835−4510 (the Vela pulsar), and J0742−2822. We measure the scattering spectral indices to be −3.8 ± 0.2, −4.0 ± 1.5, and −2.5 ± 0.6 for the Crab, Vela, and J0742−2822, respectively. We find that the scattered profiles of both Vela and J0742−2822 are best described by a thin screen model where the Gum Nebula likely contributes most of the observed scattering delay. For the Crab pulsar we see characteristically different pulse shapes compared to higher frequencies, for which none of the scattering screen models we explore are found to be optimal. The presence of a finite inner scale to the turbulence can possibly explain some of the discrepancies.
Possibilidades de aproximação do cenário escolar na formação inicial em Educação Física
Authors: Bisconsini Camila Rinaldi , Oliveira Amauri Aparecido Bássoli de 
Published: April 2019

A partir das diretrizes nacionais para a formação docente (Resolução CNE/CP 2/2015), as licenciaturas devem contemplar em seus currículos as atividades formativas (2200 horas), atividades teórico-práticas de aprofundamento em áreas específicas de interesse dos estudantes (200 horas), o estágio supervisionado (400 horas) e a Prática como Componente Curricular – PCC (400 horas). O objetivo da pesquisa foi analisar as possibilidades de aproximações do cenário escolar na formação inicial em Educação Física - licenciatura. O método de análise foi qualitativo e contou com o envolvimento de 59 sujeitos, sendo 41 acadêmicos formandos e 18 docentes, os quais participaram por meio de entrevista semiestruturada. Os dados foram tratados pela análise de conteúdo com suporte do software NVivo 10. Tanto os docentes quanto os acadêmicos sinalizam o estágio supervisionado como a principal atividade em desenvolvimento no curso para a aproximação com o ambiente escolar. Os entrevistados ainda destacaram a necessidade de outras iniciativas para intensificar os contatos com as escolas ao longo da formação inicial, para ampliar o repertório de vivências que abordem a rotina do professor de Educação Física na Educação Básica, como a PCC, que pode se concretizar em uma estratégia para viabilizar essa diversificação.
The Otubain YOD1 Suppresses Aggregation and Activation of the Signaling Adaptor MAVS through Lys63-Linked Deubiquitination
Authors: Liu Chang , Huang Shan , Wang Xuelin , Wen Mingjie , Zheng Jiarui , Wang Wenjuan , Fu Yanbin , Tian Shunli , Li Long , Li Zexing , Wang Xi 
Published: April 2019

Abstract
MAVS is a critical adaptor required for activating an innate antiviral immune response against viral infection. The activation of MAVS requires modification of the Lys63-linked ubiquitination and formation of prion-like aggregates. However, the molecular mechanisms regulating MAVS activity remain largely obscured. In this study, we identified a deubiquitinase YOD1, also known as a member of the ovarian tumor family, as a negative regulator of MAVS activation in both human and murine cells. YOD1 was recruited to mitochondria to interact with MAVS through its UBX and Znf domains after viral infection. Subsequently, YOD1 cleaved the K63-linked ubiquitination and abrogated the formation of prion-like aggregates of MAVS, which led to attenuation of IRF3, P65 activation, and IFN-β production. Knockdown of YOD1 potentiated IRF3 and P65 activation, IFN-β production, and antiviral innate immune response to RNA virus. Our findings thus provided, to our knowledge, novel insights into the regulatory cascade of the cellular antiviral response through YOD1-mediated K63-linked deubiquitination and aggregation of MAVS.
Coronary artery air embolism complicating a CT-guided percutaneous lung biopsy
Authors: Deshmukh Ashwin , Kadavani Nirav , Kakkar Ritu , Desai Shrinivas , Bhat Ganapathi M 
Published: April 2019

AbstractCoronary arterial air embolism is an extremely rare but readily recognizable condition on computed tomography (CT) that may complicate a lung biopsy. We present an incidence of symptomatic air embolism into the right coronary artery during a percutaneous CT-guided lung biopsy that was successfully recognized during the procedure and managed accordingly. An active search for this complication should be made when the patient deteriorates on table and the usual complications (pneumothorax, vasovagal shock, etc.) are ruled out, as immediate resuscitative measures could be life-saving.
Safety and outcomes of pre-operative portal vein embolization using N-butyl cyanoacrylate (Glue) in hepatobiliary malignancies: A single center retrospective analysis
Authors: Mukund Amar , Mondal Aniket , Patidar Yashwant , Kumar Senthil 
Published: April 2019

Abstract
Aims and Objectives: To evaluate the outcome of preoperative portal vein embolization (PVE) using N-butyl cyanoacrylate (NBCA) for change in future liver remnant (FLR) volume, biochemical changes, and procedure-related complications. The factors affecting FLR hypertrophy and the rate of resection was also evaluated for this cohort. Materials and Methods: From 2012 to 2017, PVE utilizing NBCA mixed with lipiodol (1:4) was performed using percutaneous approach in 28 patients with hepatobiliary malignancies with low FLR. All patients underwent volumetric computed tomography (CT) assessment before and at 3–5 weeks after PVE and total liver volume (TLV), FLR volume, and FLR/TLV ratio, changes in portal vein diameter and factors affecting FLR were evaluated. Complications and the resectability rate were recorded and analyzed. Result: PVE was successful in all 28 patients. The mean FLR increased by 52% ± 32% after PVE (P < 0.0001). The FLR/TLV ratio was increased by 14.2% ± 2.8% (P < 0.001). Two major complications were encountered without any impact on surgery. There was no significant change seen in liver function test and complete blood counts after PVE. Eighteen patients (64.28%) underwent hepatic resection without any liver failure, and only three patients developed major complication after surgery. Remaining ten patients did not undergo surgery because of extrahepatic metastasis detected either on follow-up imaging or staging laparotomy. Patients with diabetes showed a lower rate of hypertrophy (P < 0.05). Conclusion: Preoperative PVE with NBCA is safe and effective for increasing FLR volume in patients of all age group and even in patients with an underlying liver parenchymal disease with hepatobiliary malignancy. Lesser hypertrophy was noted in patients with diabetes. A reasonable resectability was achieved despite having a high rejection in gall bladder cancer subgroup due to rapid disease progression.
El papel empresarial del productor rural, una conceptualización pendiente.
Authors: Amaya Ana Lissette 
Published: April 2019

Se presenta una breve discusión conceptual y el papel que el uso de estas categorías ha tenido sobre el proceso de desarrollo rural impulsado en distintos momentos en el país.
El artículo aborda sobre las distintas apreciaciones y concepciones que existen en relación a la función productiva y empresarial desarrollada por el productor rural. Planteando la necesidad de contar con una conceptualización clara y precisa en relación a estos dos términos y su uso para la focalización de actores territoriales sujetos de incidencia en las políticas nacionales. Se plantea así, una breve inmersión a la temática y la importancia que la misma tiene para mejorar la pertinencia de los acompañamientos desarrollados en los territorios rurales. Para ello, se relacionan tres niveles de análisis, primero el ámbito estatal (con las respectivas definiciones de actores rurales y sus políticas de incidencia, sus aspectos normativos), segundo, el ámbito organizacional (como entes privados o públicos,) su concepción del productor rural y su accionar a través de distintas iniciativas. El tercero se vincula al ámbito local, donde se pretende conocer los posibles vínculos desarrollados en el tejido social (parentescos, redes de apoyo y otros) que pudiesen explicar la dinámica desarrollada por estos grupos en relación a la actividad productiva analizada y la generación de procesos de aprendizaje.
Mercado internacional para frutas deshidratadas, oportunidades, limitaciones de acceso, normas y requisitos de exportación
Authors: López Acevedo Jefry Joel 
Published: April 2019

En el mercado internacional se analizó los principales países socios comerciales de Nicaragua la mayor demanda se da en la Unión Europea representando el 98% de exportaciones, observando que el coco presento mayor volumen de exportación pero tiene el precio más bajo mientras el plátano seco es el producto mejor pagado con una tasa de crecimiento en el precio del 11% anual. Al exportar frutas deshidratadas se deben cumplir con una series de requisitos y normas sanitarias, fitosanitarias y de medio ambiente, el cual es emitido por medio de instituciones del estado. Al penetrar al mercado se debe enfrentar con restricciones y factores críticos. En los resultados obtenidos se determinó que si es viable comercializar al mercado internacional
Impacto económico de los asistentes a la Universiada de Invierno del 2015 en la ciudad de Granada
Authors: Roca-Cruz A. , González-Ruiz J. , Porcel-Rodríguez P. , Cabello-Manrique D. 
Published: April 2019

Los mega-eventos deportivos crean una nueva imagen del país anfitrión, atrae a espectadores y a los medios de comunicación (Santo, 2005; Cornelissen y Swart, 2006). El impacto económico de un evento puede definirse como el cambio económico neto en el país anfitrión que deriva del gasto atribuido al evento (Crompton, 1995). Ya que uno de los beneficios más importantes son los beneficios permanentes en la ciudad (Witt, 1988) como la mejora de las instalaciones o la imagen del país. En relación al turismo de un gran evento hay un moderado incremento del turismo interno de negocios en una ciudad durante el desarrollo del evento (OECD, 2012). Por lo tanto, la ciudad aumenta su potencial de inversión y actividad comercial (Avison Young, 2003) El objetivo del presente estudio fue analizar el impacto económico generado por los asistentes en la ciudad de Granada durante la Universiada Granada 2015.
Mega-sport events create a new image of the host country, attracting viewers and the media (Santo, 2005; Cornelissen and Swart, 2006). The economic impact of an event can be defined as the net economic change in the host country that derives from the expenditure attributed to the event (Crompton, 1995). Since one of the most important benefits are the permanent benefits in the city (Witt, 1988) as the improvement of the facilities or the image of the country. In relation to the tourism of a big event there is a moderate increase of the internal business tourism in a city during the development of the event (OECD, 2012). Thus, the city increases its investment potential and commercial activity (Avison Young, 2003). The objective of the present study was to analyze the economic impact generated by the attendees in the city of Granada during the Universiade Granada 2015.
Clima motivacional en deportistas en función de la modalidad deportiva
Authors: Castro-Sánchez M. , Zurita-Ortega F. , Chacón-Cuberos R. 
Published: April 2019

La presente investigación tiene como objetivo analizar el clima motivacional de deportistas de diferentes modalidades deportivas en función del sexo, en una muestra compuesta por un total de 372 sujetos de edades comprendidas entre los 18 y 50 años, evaluados mediante el cuestionario de Clima Motivacional (PMCQS-2) y una hoja de auto registro que midió las variables sexo y modalidad deportiva practicada. Los resultados indican que los individuos analizados se orientan en su mayoría hacia a la tarea, encontrando una mayor orientación al ego en hombres que en mujeres. Los sujetos analizados que practican la modalidad de deporte individual con contacto son los que obtienen puntuaciones más elevadas en clima ego. El estudio revela la importancia de trabajar la motivación autodeterminada en los deportistas, como un medio para centrarse en el esfuerzo y la superación personal.
The objective of this research is to analyze the motivational climate of athletes of different sports according to gender, in a sample composed of a total of 372 subjects between the ages of 18 and 50, evaluated through the Motivational Climate Questionnaire (PMCQS - 2) and a self-registration sheet that measured the variables sex and practical sports modality. The results indicate that the individuals analyzed are mostly oriented towards the task, finding a greater orientation to the ego in men than in women. The analyzed subjects who practice the modality of individual sports with contact are the ones that obtain the highest results in the ego climate. The study reveals the importance of working self-determined motivation in athletes, as a means to focus on effort and personal improvement.
La influencia y actuación de los padres en el fútbol cadete
Authors: Pulido Salas D. , Borrás Rotger P. A. , Ponseti Verdaguer F. J. 
Published: April 2019

En esta investigación se analiza la influencia y la actuación de los padres de futbolistas pertenecientes a la categoría cadete 2ª regional de las Islas Baleares. El estudio se centra en los comportamientos de gestión, presión, apoyo, comprensión y la participación activa de los padres en las actividades deportivas de sus hijos. Los participantes fueron 102 progenitores (63 padres y 39 madres), quienes participaron voluntariamente en el estudio rellenando el cuestionario Análisis del Comportamiento y Actuación de Padres y Madres en el Deporte (ACAPMD) durante la temporada 2016-2017. Además, un total de 176 jugadores completaron el cuestionario Parental Involvement Sports Questionnaire (PISQ). Los resultados muestran que no hay diferencias significativas entre los datos obtenidos por padres y madres. También, señalan que los padres muestran niveles elevados de implicación con el deporte de sus hijos y se muestran interesados en mantener una buena relación paterno-filial. En cambio, no se posicionan a favor de las intervenciones de los padres desde la grada en los partidos de sus hijos.
In this investigation is analysed the influence and the conduct carried out by footballers’ parents who belong to 2nd category of U15’s league in the Balearic Islands. This study is focused on management behaviours, pressure, support, comprehension and parents’ active participation. The participants were 102 parents (63 fathers and 39 mothers) who participated voluntarily with the study during the 2016-2017 season filling up the questionnaire Análisis del Comportamiento y Actuación de Padres y Madres en el Deporte (ACAPMD). Furthermore, 176 young footballers filled up the questionnaire Parental Involvement Sports Questionnaire (PISQ). The results show that, firstly, doesn’t exist significant differences between obtained data by fathers and mothers. Results also point that parents have high implication levels about their children’s sport. Furthermore, parents are interested into keep a nice parent-child relationship and they value positively their sons’ sportive schools. On the other hand, parents don’t agree with spectators’ interventions from the grandstands in their children’s matches.
Efectos de un programa de actividad física vigorosa en la tensión arterial y frecuencia cardiaca de escolares de 8-9 años
Authors: López Sánchez G. F. , Ibáñez Ortega E. J. , Díaz Suárez A. 
Published: April 2019

En la actualidad, las investigaciones encaminadas a mejorar la salud cardiovascular de las personas son de suma importancia. Objetivo: Este artículo se centra en estudiar los efectos de un programa de actividad física sobre la tensión arterial (TA) y frecuencia cardiaca (FC) de un grupo de escolares. Métodos: Participaron 41 escolares (19 niños y 22 niñas), entre los 8 y los 9 años de edad (media de edad 8,49 y DE 0,51). Las variables estudiadas fueron: tensión arterial (sistólica y diastólica) y frecuencia cardiaca en reposo. La tensión arterial y la frecuencia cardiaca se midieron con el tensiómetro de brazo Visomat Comfort 20/40. El procedimiento ha sido: pre-test, intervención y pos-test. La intervención ha consistido en 3 días a la semana de actividad física de alta intensidad, 15 minutos al día, durante 12 semanas. Resultados: Se ha realizado un análisis de datos por medio del SPSS 22 y se han obtenido mejoras significativas en la tensión arterial sistólica y la frecuencia cardiaca (Sig. p < 0.05). Conclusiones: El programa de actividad física empleado en este estudio puede ser de utilidad para mejorar la tensión arterial sistólica y la frecuencia cardiaca de escolares de 8-9 años.
Nowadays, research aimed at improving the cardiovascular health of people is of the utmost importance. Objective: This paper focuses on studying the effects of a vigorous-intensity physical activity program on the blood pressure (BP) and heart rate (HR) of a group of school children. Methods: This investigation involved 41 children (19 boys and 22 girls), aged between 8 and 9 years (average age=8.49 and standard deviation=0.51). The variables considered were: blood pressure (systolic and diastolic) and resting heart rate. Blood pressure and heart rate were measured by arm sphygmomanometer Visomat Comfort 20/40. The procedure was as follows: pre-test, intervention and post-test. The intervention consisted of 3 days per week of high-intensity physical activity, 15 minutes per day, during 12 weeks. Results: Data analysis was performed through SPSS 22 and significant improvements were obtained in systolic blood pressure and heart rate (Sig p < 0.05). Conclusions: The physical activity program implemented in this study may be useful to improve systolic blood pressure and heart rate in 8- and 9-year-old school children.
El efecto de la terapia acuática en el plasma y la interleucina-12 y 17 en pacientes con esclerosis múltiple
Authors: Nejatpour S. , Fathei M. , Yaghoubi A. 
Published: April 2019

Las citocinas como la interleucina-12 (IL-12) y la interleucina-17 (IL-17) influyen en la función del sistema inmune y los diferentes tejidos, siendo estudiadas debido al papel que desempeñan en la Esclerosis Múltiple (EM). El objetivo de este estudio fue investigar el efecto de la terapia acuática en la IL-12 y la IL-17 en pacientes con esclerosis múltiple. Participaron 25 hombres con esclerosis múltiple, los cuales fueron divididos en dos grupos: ejercicio y control. Se tomó una muestra de sangre antes y después de la intervención. El grupo de ejercicio llevó a cabo tres sesiones por semana durante ocho semanas. Las partes inicial y final de cada sesión incluyeron calentamiento y vuelta a la calma, llevadas a cabo en zonas poco profundas. Las actividades fueron diseñadas y llevadas a cabo por un investigador bajo la supervisión de un fisiólogo deportivo y un neurólogo experimentado. Durante las sesiones de entrenamiento, se dedicaban los primeros 10 minutos al calentamiento y los últimos 5 minutos a la vuelta a la calma. La intensidad del ejercicio fue aproximadamente del 75% de la frecuencia cardíaca máxima. Los datos demostraron que tanto IL-12 como IL-17 disminuyeron significativamente entre el pre-test y el post-test. Por tanto, se concluye que la terapia acuática puede reducir los factores de riesgo con respecto a la esclerosis múltiple, incluidas la IL-12 y la IL-17.
Cytokines such as Interleukin 12 (IL-12) and Interleukin 17(IL-17) influence the function of the immune system and different tissues and are studied due to the role they play in Multiple Sclerosis (MS). The aim of the study was to investigate the effect of aqua-therapy on plasma IL-12 and IL-17 in patients with MS. 25 men with MS were divided into two groups: exercise and control. Blood sample was taken before and after the intervention protocol. The exercise group carried out three exercise sessions per week during eight weeks. The beginning and final parts of each session included warming up and cool down, and were carried out in shallow areas. These activities were designed and implemented by a researcher under the supervision of a sports physiologist and an experienced neurologist. During the training sessions, the first 10 minutes were for warming up, and the last 5 minutes of training were for cool down. Exercise intensity was approximately 75% of heart rate reserve. The data demonstrated that both IL-12 and IL-17 decreased significantly from pre-test to post-test in the exercise group. We conclude that aqua-training may reduce risk factors regarding multiple sclerosis, including IL-12 and IL-17.