bluuebunny/crossref_metadata_2025 huggingface dataset:
Effects of an Electrocardiography Training Program: Team-Based Learning for Early-Stage Intensive Care Unit Nurses
Authors: Kim Soomi , Kim Chul-Gyu
Published: March 2020

Background:

Team-based learning (TBL) can be one way of improving professional and practical skills for nurses. This study explored the effectiveness of an electrocardiography training program using TBL for early-stage nurses in intensive care units.

Method:

This study used a pretest–posttest nonequivalent control group. A total of 65 participants were enrolled in the study (36 in the experimental group and 29 in the control group). Participants in the experimental group were trained with TBL, and participants in the control group had lecture-based learning on electrocardiography education.

Results:

There was no statistically significant difference between the team-based and lecture-based learning groups after the training in participants' knowledge of electrocardiography and reading ability of bedside (lead II rhythm) electrocardiography monitoring (
p
> .05). However, there was a statistically significant difference between the two groups in the reading ability of the 12-lead electrocardiography (
p
< .001).

Conclusion:

TBL was more effective in improving nurses' reading ability of the 12-lead electrocardiography.

[
J Contin Educ Nurs
. 2020;51(4):174–180.]
Le aristocrazie locali della Regio X dalla guerra sociale all’età neroniana. La parte occidentale
Authors: Bandelli Gino
Published: March 2020

La relazione è divisa in due parti. Nella prima vengono illustrati gli obiettivi di una ricerca sulle aristocrazie locali della Regio X: ad un aggiornamento bibliografico di carattere generale per il decennio 1981-1991 (§ 1) seguono dei bilanci relativi all’argomento specifico: l’uno concernente le fonti letterarie ed epigrafiche, l’altro le più recenti analisi del fenomeno (Vicetia, Brixia, Cisalpina repubblicana) (§ 2-3) e, infine, l’esposizione dei criteri adottati nella schedatura prosopografica (§ 4). La seconda parte, limitata al settore occidentale della Regio X (Brixia, Cremona, Mantua, Verona, Vicetia, Atesta, Patavium, Tridentum, Berua, Feltria), si apre con gli Addenda et corrigenda alle prosopopografie dei notabili di questi centri (§ 5); vengono quindi esposte delle conclusioni preliminari sulle dinamiche interne alle classi dirigenti (conservazione o perdita dei livelli di potere, meccanismi di ascesa delle “genti nove” dall’aristocrazia locale all’ordo equester e all’ordo senatorius), sui fondamenti economici del loro predominio, su qualche aspetto della loro ideologia (evergetismo) (§ 6). Da tale analisi esce confermata la posizione di assoluto rilievo della Regio X (superata, in Italia, soltanto dalla Regio I).
Pompei dalla città sannitica alla colonia sillana: per un’interpretazione dei dati archeologici
Authors: Zevi Fausto
Published: March 2020

L’Autore esamina le grandi imprese edilizie pubbliche all’indomani della istallazione dei veterani sillani (rifacimenti in edifici templari come il tempio di Apollo, il tempio di Venere, il tempio di Giove; costruzione delle terme del Foro e dell’odeion) interpretandole come espressione dei duo genera civium di cui si componeva la popolazione di Pompei dopo la deduzione coloniaria, laddove la costruzione dell’anfiteatro, non per caso opera dei primi quinquennales della colonia, intendeva evidenziare come il primo censo formalmente concludesse il passato sancendo la avvenuta fusione delle due componenti in una sola, nuova comunità cittadina. Questo modello di lettura dell’evidenza pone in risalto la disparità quantitativa tra i duo genera civium, rappresentando i veterani una minoranza rispetto alla preesistente popolazione; un rapido sguardo di insieme sugli interventi di rinnovamento decorativo, nelle case di città come nelle ville, mostra che in queste ultime sono segnalate pochissime decorazioni di pitture di I stile a fronte di molte di II stile, mentre la situazione è diversa all’interno delle mura dove molti esempi di I stile sono stati preservati fino alla fine della città, anche in ambienti particolarmente rappresentativi (atri, tablini, alae), a significare la continuità delle famiglie che abitavano le antiche dimore dell’età sannitica. Dunque i “vecchi Pompeiani” continuarono ad abitare prevalentemente le case in città, mentre furono espropriate e assegnate ai coloni le terre, soprattutto quelle a vigneto sulle pendici del Vesuvio. Tale situazione spiega come mai, secondo l’accusa sulla sua partecipazione alla congiura di Catilina, P. Silla avrebbe fomentato la discordia tra i due gruppi cercando l’appoggio, non dei coloni come ci si aspetterebbe, ma dei vecchi Pompeiani; questi rappresentavano infatti in assoluto la maggioranza, e soprattutto, concentrati come erano dentro le mura urbiche, si trovavano nella situazione migliore per impadronirsi della città.
Donne, domi nobiles ed evergeti a Paestum tra la fine della Repubblica e l’inizio dell’Impero
Authors: Torelli Mario
Published: March 2020

Lo studio esamina due casi di evergetismo di Paestum tardo-repubblicana e augustea di cui sono responsabili donne dell’aristocrazia locale. Il primo caso riguarda Mineia M. f., moglie del senatore Cocceius Flaccus questore lectus da Cesare; la ricostruzione di sei iscrizioni pertinenti a statue e alla dedica della basilica consente di attribuire alla donna la ricostruzione augustea dell’edificio, celebrata anche da un’eccezionale emissione monetale con il nome della donna. Il secondo caso concerne il santuario di S. Venera, sede di un culto di Afrodite colà insediato dalla fondazione della colonia greca. In questo santuario sono attive due sacerdotesse, Sabina e Valeria C. f., collegate con un’altra importante famiglia equestre pestana, quella di C. Flaccius Flaccus. L’analisi delle epigrafi rinvenute a S. Venera, collegata con la documentazione archeologica, consente di ricostruire la storia di questo santuario all’inizio dell’età imperiale, assai singolare e legata al recupero antiquario di tradizioni risalenti all’epoca arcaica.
Le visage des élites
Authors: Croz Jean-François
Published: March 2020

Malgré les nombreuses difficultés que pose l’interprétation des portraits sculptés, certains rapprochements permettent de supposer que les effigies susceptibles de représenter des notables municipaux ont parfois été marquées par un héritage grec, étrusque ou italique ; d’autres semblent accuser l’influence de portraits de personnalités romaines connues, tant certaines ressemblances de détail sont frappantes. La diversité de ces influences ne permet pas de parler d’un “style municipal” homogène. Mais un parti pris de réalisme confère cependant une certaine unité à ces portraits ; et on voit même plusieurs traits caractéristiques marquer ponctuellement le portrait urbain jusque sous l’Empire. Ainsi, le portrait “municipal” ne se contente pas de subir telle ou telle influence ; il a pu aussi exercer la sienne propre.
Diffusion and Solubility of Common Microelectronic Airborne Molecular Contaminants into PEI Thin Polymer Membranes and its Related Contamination Control Applications
Authors: González-Aguirre P. , Tran Minh Phuong , Herrán Fernando , Moon Sung In , Lundgren Jorgen , Beitia Carlos , Fontaine Hervé
Published: March 2020

Sorption and outgassing mechanisms of corrosive gases in relation with wafers lost yield due to polymer container Front Opening Unified Pod (FOUP), is crucial information to understand the cross contamination between FOUP and wafers. This occurs when FOUPs (made in polymers) outgas contaminants into the wafer surrounding minienvironment. Gas sorption is governed by surface adsorption, followed by diffusion and solubility and then, permeability appears as a key parameter to understanding these cross contamination phenomena. In this work, we present the transport coefficients obtained for gaseous HF and HCl at cleanroom conditions (Patm, 21 ± 2°C & 40% RH) at two different HX concentrations using the sorption kinetic method, based on Fick’s law, for thin films (≈50μm) of PEI. Finally, we establish the relationship between the sorption parameters of a polymer thin film and the potential contamination transfer from a FOUP whose main polymer material is similar.
Resin Radial and Isothermal Infiltration in Fibrous Media: A New Mathematical Formulation
Authors: do Nascimento Santos M.J. , de Oliveira Neto Guilherme Luiz , Carmo de Lima Ana Raquel , de Oliveira Nívea Gomes Nascimento , Pereira de Farias Raimundo , Pereira Ramos R. , de Lima Antonio Gilson Barbosa
Published: March 2020

The objective of this work is to describe the fluid flow in porous media including the sorption term of the fluid by the fibers. The study has been applied to the manufacture of fiber-reinforced polymer composites by resin transfer molding, giving emphasis to radial resin infiltration in a one-dimensional approach. The mass conservation equation and Darcy’s law are presented and the solution of the governing equation is obtained. The advanced mathematical modeling includes the effect of fluid sorption by the porous media. Predicted flow front results and resin pressure fields within the mold during the injection process are presented, and the effects of the sorption term, injection pressure and fibrous medium permeability analyzed.
Flexible Poly(imide) Siloxane Block Copolymers to Use at Biomedical Products
Authors: Doğan Türkan , Koken Nesrin , Bulut Osman , Baydogan Nilgun
Published: March 2020

The novel research on organic polymer chemistry and physical organic chemistry involve poly(imide) siloxane on advanced and emerging technologies in radiation therapy. The poly(imide siloxane) block copolymers were synthesized at different production conditions for the use of biodegradable and biocompatible materials to use at biomedical products. These block copolymers were produced by using 4,4'-oxydianiline (ODA) and 3,3,4,4-Benzophenone-tetracarboxylic dianhydride (BTDA) to form polyimide hard block. APPS and BTDA formed the polysiloxane soft block. The polysiloxane soft blocks were increased by increasing the polyimide hard blocks. Copolymers are synthesized by adjusting the soft and hard segments. Copolymers can be obtained by holding constant hard block segments and by adjusting soft block segments. Hence, flexible poly(imide siloxane) block copolymers were derived. The samples were derived in a flexible rubber form. The prepared copolymers possess the properties of elastomers. Due to these properties, these materials have potential usage in microelectronics devices and medical devices. Poly(imide) siloxane, which can be produced with the desired form and conformed at different configurations, is important in such areas. In this research, the studies on poly(imide) siloxane have supported innovative and comprehensive radiation technology in polymer industries, experimental approaches for the innovative biomedical products. The samples were characterized as flexible rubber form and this property was detected and the creep test of poly (imide) siloxane was performed by Dynamic Mechanical Analyser (DMA).
Design and Fabrication of the Bidirectional Micro-Optic Concentrator for Optical Radiation
Authors: Pârvulescu Cǎtǎlin Corneliu , Manea Elena , Tibeica Cǎtǎlin , Purica Munizer , Popescu Alina
Published: March 2020

This paper presents the design and fabrication of a micro-optic concentrator for optical radiation based on coupled micro-lenses and micro-prism (micro – mirrors) arrays. This type of micro-optic concentrator is suitable for both terrestrial and spatial applications where optical radiation is redirected and coupled to small area photovoltaic cells or detection devices located in front of the waveguide edges. Analysis and design were performed for the 0.4-1.06µm spectral range using the COMSOL Multiphysics program and the Ray Optics geometric optics module. Simulations for ray-tracing have been modeled in order to optimize the geometries of micro-optics elements taking into account the optical parameters of the materials to be used (polymers and glass) in the process of micro-optic concentrator fabrication. Micro-lenses and micro-prism arrays were fabricated by the technique of molding in silicon molds and replication in polymeric materials using OrmoClear30 elastomer (n=1.56, UV exposure) and in UV-PDMS, KER4690 polymer, respectively. Assembling and the fabrication process of micro-optic concentrator allowed the achievement of an optical efficiency of 70 % efficiency.
Modelling Mass Transference and Two-Directions Diffusion Coefficients in an Ellipse-Shaped Body under Multi-Factor and Un-Steady Conditions
Authors: Carvajal-Larenas F. Ernesto
Published: March 2020

Regarding mass transference and diffusion, very important contributions have been made through time. Numerical solutions (mostly) have been applied to plane sheets, spheres and cylinder-shaped bodies. Most of these studies were related to only one direction and specific conditions i.e, solute concentrations or stirring conditions or diffusion distances and time. However, it is difficult to find models for more than one direction and other shaped bodies as well as their behaviour under multifactor and unsteady conditions. Therefore, the aims of this study were: 1) to confirm that a pre-obtained first-order function can be used to estimate velocity of mass transferred and diffusion coefficients as function of an un-steady and multi-factor system (amount of solvent, agitation time, amount of material diffused and time) on a ellipse-shaped body; 2) to demonstrate that inferred diffusion coefficients respect Fick`s first and second laws and Walstra ́s general diffusion equation; and 3) to model inferred mass transference and two-dimension diffusion coefficients within the un-steady and multi-factor system. As for the methodology, the first order function obtained previously, a created algorithm (based on analytic mathematics, numerical and graphical solutions) and the computer programme Expert Design v.11 were used to infer solutions. Results show models with very good accuracy (p< 0.001, r2 > 0.99, Fraction of Design Space ͠100%) and an easy-to-use graphical solution.
Water Absorption Curves versus Gamma-Ray Attenuation Profiles: A Comparative Analysis of Hygric Permeance Results
Authors: Guimarães A.S. , Ribeiro I.M. , Azevedo A.C. , Delgado João M.P.Q.
Published: March 2020

The knowledge of moisture transfer in multi-layered building materials and components using numerical simulations is fundamental to predict the behaviour of that building materials and components when in contact with moisture and to avoid some possible future pathology guarantying a correct performance.This paper describes a comparative analysis of experimental values of Hygric Permeance (HP) obtained by water absorption curves and gamma-ray attenuation profiles, for perfect contact interface. ARTICLE REVISED ON 25.03.2022
The Influence of H2SO4- NaCl Electrolyte Composition to the Electrochemical Noise Behaviour of a High-Alloy Cast Steel
Authors: Mandel Marcel , Kietov Volodymyr , Wendler Marco , Krüger Lutz
Published: March 2020

In this study, the influence of varying sulphuric acid – sodium chloride electrolyte composition to the electrochemical noise behaviour of a high-alloy cast steel was analysed. The noise analysis was carried out in a bare 0.1 M sulphuric acid solution, in a pure 5 wt.% sodium chloride solution and three solutions with defined ratios of both. The electrochemical current noise signal was recorded with a sampling rate of 100 Hz for 1 hour in each test solution. For the identification of the frequency content of notified characteristic transients, the current-time records were analysed by the continuous wavelet transform (CWT). The characteristic transients were extracted from the noise signal for a further analysis of their frequency and amplitude characteristics. The results show high-frequency transients in the bare sulphuric acid and low-frequency transients in the pure sodium chloride solution. In the combined electrolyte solutions the portion of low-frequency components increases when the NaCl content increases and indicates the enhancing influence of localised damage evolution processes at the steel surface.
Research productivity of the state universities of Sri Lanka, a case based on SciVal and the contribution of the libraries towards excellence
Authors: Wijetunge P. , Silva A. , Manatunga P. K. S.
Published: March 2020

This paper discusses the research productivity of five state universities of Sri Lanka during 2015-2018, using scholarly output, citation impact and collaboration metrics of SciVal, and the contribution of the university libraries towards research excellence. Five multi-disciplinary state universities; University of Colombo (UoC), Kelaniya (UoK), Peradeniya (UoP), Ruhuna (UoR) and Sri Jayewardenepura (UoSJP) were selected as the sample. During the study period, 4723 publications and 3831 authors have been recorded, of which UoC and UoP records the highest numbers. UoR records the highest publications in top journal percentile and highest number of views (72) among the five universities. A total of 33104 citations are reported while UoP depicts the highest citation count (18322) as an individual university, while UoR records the highest h5-index (39). Highest Field Weighted Citation Impact (3.18) and the highest citations per publication (12.4) is recorded by UoP while the highest output in top citation percentile (32.5%) is recorded by UoR. UoR records the highest overall international collaboration (74.4) during the studied period and UoP records the highest academic/corporate collaboration (2.2). University libraries provide collections and conducive environments for researchers, training in searching for information, referencing styles and use of reference management software, plagiarism detection and they maintain Institutional Repositories. The study established that there is much scope for university libraries to expand the services to support research productivity and recommends that librarians should consider on more current support areas like research data management, measuring research impact, and digital curation in order to support their universities to achieve excellence in research productivity.
Nasal Prosthesis after Partial Rhinectomy. A Case Report
Authors: Gupta Shekhar , Gupta Bharti , Motwani Bhagwandas K.
Published: March 2020

Maxillofacial defects can result from several reasons, including neoplasia, congenital malformations, trauma, oral infections, etc. This kind of defects can be severely debilitating to the patients. To improve the quality of life of these patients, the options include surgical reconstruction and maxillofacial prosthesis. However, surgical approaches have many inherent disadvantages and limitations. This case report describes the prosthetic rehabilitation of a female patient who underwent partial rhinectomy secondary to basal cell carcinoma. The case was planned with a silicone prosthesis with anatomic and spectacle retention. A non-surgical method of rehabilitation was followed owing to the patient’s choice and financial constraints. The final prosthesis was aimed at enhancing the esthetics and function of the patient, thereby improving her quality of life.
Emergency cesarean section performed in a patient with confirmed severe acute respiratory syndrome Coronavirus-2 -a case report-
Authors: Lee Dong Hwan , Lee Jihyang , Kim Eunju , Woo Kyeongyoon , Park Hak Youle , An Jihyun
Published: March 2020

Background: Since the first case of severe acute respiratory syndrome Coronavirus-2 (SARS-CoV-2) occurred in Wuhan in December 2019, the virus has spread globally. The World Health Organization declared the virus outbreak a pandemic on March 11, 2020. On January 19, 2020, a 35-year-old woman who returned from China was confirmed as the first SARS-CoV-2 infected case in Korea. Since then, it has spread all over Korea.Case: We report the first case of a SARS-CoV-2 positive woman delivering a baby through cesarean section at 37+6 weeks of pregnancy in the Republic of Korea.Conclusions: This case suggested that negative pressure operating room, skillful medical team, and enhanced personal protective equipment including N95 masks, surgical cap, double gown, double gloves, shoe covers, and powered air-purifying respirator are required at the hospital for safe delivery in such a case.
Assesment of the effects of L-Dopa on Parkinson's Disease
Authors: Wright J.
Published: March 2020

No abstract available.
Electrochemical Corrosion Behavior of TiAlN/CrN Nanoscale Multilayer Coatings by Multi-Arc Ion Plating in 3.5% NaCl Solution
Authors: Wang Lijun , Wang Mengchao , Chen Hui
Published: March 2020

Multi-arc ion plating was used to deposit TiAlN/CrN multilayer coatings with different bilayer thicknesses on Type 316L stainless steel. The impacts of the bilayer thickness on the electrochemical performance of the TiAlN/CrN multilayer coatings were explored in a neutral saline (3.5% NaCl) solution. The fracture cross-sectional morphology of the as-deposited coatings were investigated by scanning electron microscope. The crystal structure and preferred orientation were analyzed by x-ray diffraction. The interface characteristic was detected by transmission electron microscopy. The potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) were used for as-deposited coatings. Corroded surface morphology and EIS of the 15-day immersion coatings and substrate were examined to analyze the anticorrosion performance. EIS showed an increase of polarization resistance (Rp) and a decrease in constant-phase element (CPE) for multilayer coatings with a decrease in bilayer thickness. After 15 days of immersion, the EIS plot showed that the C3 coating (with 20 bilayers) had the lowest electrical double-layer capacitance (CPEdl) and highest charge transfer resistance (Rct) in all samples. The relative decay of the Rp of the C3 coating was the smallest compared with the as-deposited coatings, which shows a satisfactory corrosion resistance. The electrochemical tests and immersion corrosion morphology showed that the existence of a large number of interfaces between individual layers in a multilayer structure inhibits the pitting propagation significantly and enhances the corrosion resistance.
NIÑOS EN SITUACIÓN DE RIESGO SOCIAL: UNA PROPUESTA DE ACCIÓN A TRAVÉS DE LA GIMNASIA AERÓBICA
Authors: Franzen Cláudio , Barbosa María , Vargas Angelo
Published: March 2020

Este estudio tiene como objetivo relacionar el ser y el deporte mediante la adopción de un programa intervencionista deejercicios aeróbicos como base de la competencia deportiva. Con la participación de 20 niños de bajo nivel socioeconómico,con edades de siete a diez años, y entre el primero y cuarto grados de la enseñanza primaria, y con ciertas habilidadesnecesarias para aeróbica, se han investigado los posibles cambios comportamentales proporcionados a estos jóvenes poruna vida deportiva, que, además de los beneficios físicos y socioeducativos, les ayuda a definir una nueva forma de pensar yactuar. Se ha aplicado un cuestionario sobre el grado de satisfacción en la realización de estas prácticas, y sobre lamotivación para la continuación de la formación y la relación entre alumno y profesor. Se han constatado mejoras en lacalidad de la estructura corporal de estos niños y niñas, además de los manifiestos progresos intelectuales. Este ensayoplantea para el educador un formato de integración social producida a través del deporte.
CONCENTRACION URINARIA DE HIDROXIPROLINA EN HOMBRES CON LUMBALGIA SOMETIDOS A HIDROKINESIOTERAPIA
Authors: Soares Pernambuco Carlos , Laranjeira Claudia , Guiot Mesquita Michelle , Da Conceição Mario , Gomes de Souza Vale Rodrigo , Martin Dantas Estélio
Published: March 2020

El objetivo del estudio fue analizar los efectos de la hidrokinesioterapia en las concentraciones urinarias de hidroxiprolinaen hombres con lumbalgia. Los participantes fueran 23 hombres con 23 a 50 años, con diagnóstico de lumbalgia y fueranorientados a participar en el programa de Hidrokinesioterapia. La recolección de orina para evaluar la concentración deHP ocurrió en la primera, quinta y decima sesión utilizando HPROLI 24H. Los resultados fueran 14,45 mg/d, en la quintasesión fue 14,09 mg/d y finalmente la decima sesión el grupo obtuvo 16,22 mg/d. La conclusión fue que la hydroxyprolina esun gran marcador del sangre para tejidos musculares lesionados.
COMPARACIÓN DE LA MASA MUSCULAR Y MASA GRASA DE ESTUDIANTES DE PRIMER AÑO DE EDUCACIÓN FÍSICA
Authors: Barraza Gómez Fernando , Rodriguez Rodriguez Fernando
Published: March 2020

En el estudio se presentan los resultados del análisis de la composición corporal y el somatotipo de estudiantes que ingresana primer año universitario a la carrera de Educación Física de la Pontificia Universidad Católica de Valparaísoen los años 2008 - 2009 y 2010. La población estuvo constituida por 200 alumnos divididos en 45 varones y 21 damaspromoción 2008 edad promedio 19,3 y 19,5 años respectivamente, 44 varones y 24 damas promoción 2009 edad promedio19,4 y 18,3 años, 42 varones y 24 damas 2010 edad promedio 21,3 y 19,8 años respectivamente. Se puedo observarque los valores de masa grasa para el caso de las damas se encuentran más del 80% dentro de las categorías establecidasinternacionalmente de elevado y muy elevado donde encontramos valores de 50% y 33,3% respectivamente para elcaso de las damas incluidas total de las muestras de cada grupo. En el caso de los varones el 61% se encuentra entre losrangos de bueno y aceptable, el 10,7 % rango excelente y el 26 % elevado. En cuanto a los datos obtenidos respectos alos fraccionamientos de la masa muscular y masa grasa para las damas de las promociones 2008, 2009 y 2010 encontramosvalores de de masa muscular 40,7%, 42,3% y 40,7% y valores de masa grasa 31,7%, 30,6% y 33,9%. En el casode los varones encontramos valores para la masa muscular de 47%, 45,9% y 47,2% y para valores de masa grasa de22,9%, 25,3% y 24,9. Esto nos hace pensar que los estudiantes llegan a enfrentar una carrera de cierta exigencia física,sin tener una estructura física adecuada, lo que puede incidir en la manifestación de lesiones musculares, ligamentosasy óseas al someterse a la práctica de actividad física regular y crónica.
LA VISIÓN CIENTÍFICO - PEDAGÓGICA DEL TANGO Y DE LA SAMBA EN LA OBRA DE RODOLFO DINZEL Y EN LAS TEORÍAS DE LABAN
Authors: Nanni Dionísia , Lovisolo Hugo
Published: March 2020

Este artículo es presentado como parte de una discusión sobre la motricidad de la samba y del tango a partir de unestudio comparativo. A partir de los conceptos analíticos de Rodolfo Dinzel (1) y de las teorías de Laban (2), tenemosla intención de comparar las potencialidades, semejanzas y diferencias entre los conceptos de los dos autores mencionados,en el contexto de sus repercusiones sociales y pedagógicas. El campo observado integra la etnografía, observaciónparticipante, el análisis de las estructuras propias del tango y de la samba y sus procesos de enseñanza.
HISTORIA DE LA HUMANIDAD Y EL DEPORTE: UN ANÁLISIS DESDE UNA PERSPECTIVA POLÍTICO-SOCIAL
Authors: Machado Tibério Costa José , Vargas Angelo
Published: March 2020

El estudio tiene como objetivo presentar la relación entre el hombre y el deporte a la mientras de la historia. Se observóque el deporte ha acompañado al hombre desde la prehistoria en el que surgió la naturaleza para la supervivencia,trascendiendo hasta la Antigua Grecia, término que se refiere al periodo de la historia de Grecia. En este período dela Historia Griega, los deportes recibieron el estatus de asociado con la belleza y la sabiduría. En la Antigua Romael deporte tenía sustancial importancia política y una función principal que fue la coaptación de los espectadores, adiferencia de la Época Medieval, donde se limitaba a los Clérigos con las prácticas deportivas de juego, quedando ala “gente común” a la observación. Al final de la Segunda Guerra Mundial, la política deportiva recibió el desarrollosustancial debido la disputa entre los países del bloque capitalista y el bloque comunista, con objeto de demostrarsu fuerza y superioridad a través del escenario de las competiciones deportivas. En el siglo XIX lo deporte moderno,se basa en los conceptos de Rousseau, que influyen directamente en los ideales de Pierre de Coubertin, que utiliza eldeporte con el objetivo de la pacificación y unificación del pueblo, a través de el establecimiento de la Tregua o PazOlímpica durante los Juegos. Sin embargo, la magnitud del deporte trasciende los cambios momentáneos, como seha señalado en el deporte para fines sociales, donde el deporte asume la función de entrenador de habilidades sociales,proporcionando una alternativa a la población pobre. Como se ha señaló el deporte a la mientras de la historiahumana asistió a un universo de posibilidades y necesidades. Sin embargo, los caminos para lograr su crecimiento,depende de la formación de los profesionales implicados, una de las maneras de alcanzar su empoderamiento, es lanecesidad de los profesionales implicados, lo que necesitan conocer y buscar la manera de sacar provecho de todo eluniverso de posibilidades inherentes a este fenómeno social llamado el deporte.
¿CÓMO COMPETIR SIN DEJAR DE JUGAR?
Authors: Cajas Luna Boris
Published: March 2020

El presente escrito, más que hacer una descripción teórica acerca de temáticas psicológicas tratadas y conocidasacerca del deporte, intenta plasmar una reflexión sobre aspectos que dictan relación con dilucidar la incógnita planteadacomo título. Es decir, replantear este cuestionamiento, relativo al desempeño deportivo, profundizando en variablespsicológicas decisivas en el rendimiento deportivo, como también evidenciar que muchas arengas deportivascarecen de sustento teórico y por lo demás llegan a veces a convertirse en claras distorsiones cognitivas. Finalmentese plantean formas alternativas de abordar el rendimiento deportivo desde la perspectiva psicológica.
PERCEPCIÓN SUBJETIVA DEL TIEMPO EN DEPORTISTAS SELECCIONADOS DE LAS UNIVERSIDADES TRADICIONALES DE LA REGIÓN DE VALPARAÍSO, CHILE
Authors: Páez Herrera Jacqueline
Published: March 2020

La Percepción Subjetiva de Tiempo (PST), ha sido considerada como una de las capacidades determinantes en el rendimiento deportivo, que se ve reflejada, en un desarrollo del juego más rápido y preciso en un ambiente de grandes niveles de incertidumbre temporal y espacial. Es por esto que esta investigación tiene como fin conocer el nivel de PST en dos situaciones diferentes, en deportistas seleccionados universitarios de la V Región. La investigación es de tipo descriptiva, con un paradigma empírico-analítico. La población fue constituida por N= 130 deportistas (n= 48 damas y n= 82 varones). Para determinar la variable dependiente se utilizó el test PST, con una modalidad de tiempo fija y tiempo a determinar. Los principales resultados una vez aplicada la prueba t student indican que: a) Los varones presentan mejores desempeños que las damas en las pruebas de PST-1 (cuando se le da el tiempo), PST-2 (cuando él o ella decide el tiempo), b) que los deportes individuales obtienen mejores promedios de rendimiento en el test PST.
ASOCIACIÓN ENTRE EL TIEMPO DE USO DEL ORDENADOR Y LA ACTIVIDAD FÍSICA EN LA ADOLESCENCIA
Authors: Valencia-Peris Alexandra , Devís-Devís José
Published: March 2020

El objetivo de este estudio fue analizar los patrones de comportamiento de una muestra de adolescentes en relación consu actividad física moderada-vigorosa (AFMV) y el uso que hacen del ordenador (jugar, comunicarse, estudiar y usoglobal) según el sexo, el nivel de participación deportiva y el tipo de día de la semana (entre semana y fin de semana) yaveriguar si existen asociaciones entre ambas conductas. La muestra de estudio se compuso por 357 adolescentes de 15 a18 años (183 chicas y 174 chicos) que fueron clasificados en ‘Deportistas’, ‘Activos’ e ‘Inactivos’ y a quienes seadministraron cuestionarios de auto-informe. Los resultados revelaron una mayor práctica de AFMV y un menor uso delordenador entre semana que en fin de semana. Se observaron diferencias según el nivel de participación deportiva siendolos ‘Deportistas’ quienes más disminuían su práctica y más aumentaban su dedicación al ordenador para comunicarse enfin de semana. Tanto entre semana como en fin de semana, los chicos dedicaban más tiempo al ordenador para jugarmientras que las chicas les superaban en un uso comunicativo del mismo. Finalmente, se observaron mayores indicios desustitución de la AFMV por el uso del ordenador para comunicarse y/o estudiar entre semana que en fin de semana,donde no se encontraron asociaciones significativas. A nivel global, se detecta una especial necesidad de incrementar laparticipación en AFMV de los jóvenes en fin de semana, donde las posibilidades de ocio para mantenerse físicamenteactivo/a se ven incrementadas.
TÉCNICA Y EFECTIVIDAD BIOMECÁNICA DEL REMATE EN EL VOLEIBOL. REVISIÓN BIBLIOGRÁFICA
Authors: Quintana Salas Jorge
Published: March 2020

En el voleibol el remate es la acción de ataque más agresiva dentro del juego por medio del cual se obtienen la mayorcantidad de puntos. En la técnica de remate, es importante golpear el balón a la mayor altura posible e imprimirlevelocidad y trayectoria. La efectividad desde el punto de vista biomecánico está dada por adquirir la mayor alturaposible del centro de masa para golpear el balón lo más alto posible e imprimir velocidad y precisión en la trayectoriadel balón. El objetivo del presente trabajo es ofrecer una revisión del conocimiento científico disponible en los últimos 20años sobre el remate, con el fin de establecer el estado actual de los factores biomecánicos relacionados con surendimiento e impulsar una visión crítica a los entrenadores generando herramientas científicas para planificar susentrenamientos.Los principales hallazgos de la presente revisión bibliográfica fueron, por un lado, la poca existencia de informaciónsobre la técnica de remate del voleibol, y por otro lado, a pesar de existir un déficit de evidencia científica, lasinvestigaciones se centran en los factores biomecánicos relacionados con los criterios de eficacia del remate, como lavelocidad del centro de masa en la batida, la elevación del centro de masa, el tipo de armado, y la velocidad angular dela mano. En cuanto a los estudios de intervención analizados sobre el rendimiento del remate, el mayor número depublicaciones se obtuvo desde el 2011 a la actualidad, dejando en evidencia que el avance científico aun está en proceso.
A dimeric oxidovanadium(V) complex derived from a hydrazonate ligand with an unusual asymmetrically bridged μ-(oxido)μ-(H2O){oxidovanadium(V)}2 core
Authors: Borges Alice Prudente , Gatto Claudia Cristina , Deflon Victor Marcelo , Maia Pedro Ivo Da Silva
Published: March 2020

The binuclear oxidovanadium(V) complex [{VO(L)}2(μ-O)(μ-H2O)]∙2CH3CN (1), where L2– is the dianion of the Schiff base 2-salicylaldehyde-2-hydroxybenzoylhydrazone, were prepared and characterized by elemental analysis, FTIR, 1H, 13C and 51V NMR. Furthermore, the crystal structure of the compound 1 was determined by single crystal X-ray diffractometry revealing a distorted octahedral O5N-coordination geometry around the V(V) acceptor centers. The vanadium ions are connected by the μ-O2– and the μ-H2O asymmetric bridges located in the edge between the two octahedrons which keeps a distance of 3.194 Å between the two vanadium centers. Crystal data for C32H28N6O10V2 (M =758.48 g/mol): orthorhombic, space group P212121 (no. 19), a = 12.9655(8) Å, b = 14.1902(9) Å, c = 18.4379(10) Å, V = 3392.3(4) Å3, Z = 4, T = 293(2) K, μ(MoKα) = 0.616 mm-1, Dcalc = 1.485 g/cm3, 18803 reflections measured (3.622° ≤ 2Θ ≤ 56.704°), 8263 unique (Rint = 0.0473, Rsigma = 0.1020) which were used in all calculations. The final R1 was 0.0509 (I > 2σ(I)) and wR2 was 0.1531 (all data). The (VO)2(μ-O)(μ-H2O) core in compound 1 represents a rare case and few examples of similar type have been structurally characterized.
Virtual molecular docking study of some novel carboxamide series as new anti-tubercular agents
Authors: Abdullahi Mustapha , Uzairu Adamu , Shallangwa Gideon Adamu , Arthur David Ebuka , Umar Bello Abdullahi , Ibrahim Muhammad Tukur
Published: March 2020

A virtual docking simulation study was performed on thirty-five newly discovered compounds of N-(2-phenoxy) ethyl imidazo[1,2-a] pyridine-3-carboxamide (IPA), to explore their theoretical binding energy and pose with the active sites of the Mycobacterium tuberculosis target (DNA gyrase). The chemical structures of the compounds were drawn correctly with ChemDraw Ultra software, and then geometrically optimized at DFT level of theory with Spartan 14 software package. Consequently, the docking analysis was carried out using Molegro Virtual Docker (MVD). Five complexes (Complex 5, 24, 25, 33 and 35) with high binding energy were selected to examine their binding pose with the active sites of the protein. The docking results suggested a good MolDock score (≥ -90 kcal/mol) and Protein-Ligand ANT System (PLANTS) score (≥ -60 kcal/mol) which depicted that the compounds can efficiently bind with the active sites of the target. However, compound 5 has the best binding pose with the MolDock score of -140.476 kcal/mol which formed three hydrogen bond interactions with the Gln 538, Ala 531, and Ala 533 amino acid residues. This research gives a firsthand theoretical knowledge to improve the binding efficiency of these compounds with the target.
Ozone–vegetation feedback through dry deposition and isoprene emissions in a global chemistry–carbon–climate model
Authors: Gong Cheng , Lei Yadong , Ma Yimian , Yue Xu , Liao Hong
Published: March 2020

Abstract. Ozone–vegetation feedback is essential to tropospheric ozone (O3) concentrations. The O3 stomatal uptake damages leaf
photosynthesis and stomatal conductance and, in turn, influences O3 dry deposition. Further, O3 directly influences isoprene
emissions, an important precursor of O3. The effects of O3 on vegetation further alter local meteorological fields and
indirectly influence O3 concentrations. In this study, we apply a fully coupled chemistry–carbon–climate global model (ModelE2-YIBs) to
evaluate changes in O3 concentrations caused by O3–vegetation interactions. Different parameterizations and sensitivities of
the effect of O3 damage on photosynthesis, stomatal conductance, and isoprene emissions (IPE) are implemented in the model. The results
show that O3-induced inhibition of stomatal conductance increases surface O3 on average by +2.1 ppbv (+1.2 ppbv) in
eastern China, +1.8 ppbv (−0.3 ppbv) in the eastern US, and +1.3 ppbv (+1.0 ppbv) in western Europe at high (low) damage sensitivity.
Such positive feedback is dominated by reduced O3 dry deposition in addition to the increased temperature and decreased relative humidity
from weakened transpiration. Including the effect of O3 damage on IPE slightly reduces surface O3 concentrations by influencing
precursors. However, the reduced IPE weaken surface shortwave radiative forcing of secondary organic aerosols, leading to increased temperature and
O3 concentrations in the eastern US. This study highlights the importance of interactions between O3 and vegetation with regard
to O3 concentrations and the resultant air quality.
Preparation of TFC Membranes Supported with Elelctrospun Nanofibers for Desalination by Forward Osmosis
Authors: Al-Furaiji Mustafa , Kadhom Mohammed , Kalash Khairi , Waisi Basma , Albayati Noor
Published: March 2020

Abstract. Forward osmosis (FO) process has been considered as a viable option for water desalination in comparison to the traditional processes like reverse osmosis regarding the energy consumption and economical operation. In this work, polyacrylonitrile (PAN) nanofiber support layer was prepared using electrospinning process as a modern method. Then, an interfacial polymerization reaction between m-phenylenediamine (MPD) and trimesoyl chloride (TMC) was carried out to generate a polyamide selective thin film composite (TFC) membrane on the support layer. The TFC membrane was tested in FO mode (feed solution facing the active layer) using standard methodology and compared to a commercially available cellulose triacetate membrane (CTA). The synthesized membrane showed a high performance in terms of water flux (16 L m−2 h−1) but traded the salt rejection (4 g m−2 h−1) comparing with the commercially CTA membrane (water flux = 13 L m−2 h−1 and salt rejection = 3 g m−2 h−1) at no applied pressure and room temperature. Scanning electron microscopy (SEM), contact angle, mechanical properties, porosity, and performance characterizations were conducted to examine the membrane.
Co-incidence Analysis of Changes in Flood Magnitude and Shifts in Flood Timing in a Large Tropical Pluvial River Basin
Authors: Ganguli Poulomi , Nandamuri Yamini Rama , Chatterjee Chandranath
Published: March 2020

Abstract. Understanding trends in flood severity and the persistence in peak discharge timing along a vast river network is vital for basin-scale flood risk management and reinsurance purposes. While earlier studies have primarily focused on analysis of either trends in floods or its seasonality independently, here for the first time, we assess coincidence of changes in peak discharge and shifts in its timing in one of the largest peninsular rivers (drainage area of 141 589 km2), Mahanadi River Basin (MRB), in India during 1970–2016. Our research is motivated by the recent six major consecutive floods over MRB during the years 2001, 2003, 2006, 2008, 2011, and 2013. We analyze flood properties using peak fluvial discharge indicators, Monsoonal (from June 1–end of September, during the Indian summer monsoon period), Maxima Flood (MMF) and Peak over Threshold Flood (POTF) events. While we find a blend of (insignificant) up/downward trends in flood magnitude at Upper MRB (Region I), the middle reaches of the basin (Region II) showed an upward trend in flood magnitude with a larger number of sites detect significant trends in floods for the POTF events. Although the average dates of peak discharge in the basin are concentrated in August, notwithstanding the nature of flood samplings, a delayed (or earlier) shift in flood timing is apparent for most of sites. Further, we detect potential hotspots, where up/downward trends in flood magnitude coincide with early (or delayed) dates of flood occurrences. Based on observational evidence, here we show that up to one-third of sites show an up/downward trend in peak discharge with a distinct shift in the flood timing throughout the MRB. The outcomes of the study call for developing efficient adaptation strategies to ensure regional flood resilience since variations in the peak discharge timing should not be confounded with (insignificant) changes in its magnitude.
Language Performance of Bilingual Learners
Authors: Kane Hafissatou
Published: March 2020

The question of whether a learner in bilingual education can have the same performance in both languages is a vexed issue as it has long been investigated with controversial findings. This research was conducted in “Barrack Obama” bilingual private school of Dakar with a French-English program. The first and second semester marks of twenty-two learners in 8th grade have been used to measure the latter’s performance in the two languages during the academic year 2018-2019. It follows our analysis that fifteen of these students have a similar annual grade in both languages while three others show more performance in French; and the remaining four are better at English. However, the study also shows that the said balanced bilinguals have lack of proficiency in both languages. Only few of them (4) have good and equivalent proficiency in both languages while the remainder show weaker performance. This imbalance is surely due to the age at which he learner enters the bilingual system, their IQ and their ability to learn languages as well.
Modelo andragógico aula invertida en la asignatura “Histotecnología III. Universidad de Carabobo. Valencia, Venezuela
Authors: Nuñez Rodríguez Jose Antonio , Merchor Manaure Gustavo Adolfo
Published: March 2020

El presente estudio describe la experiencia en la implementación del modelo andragógico aula invertida en la asignatura “Histotecnología III” del Departamento de Ciencias Morfológicas y Forenses de la Facultad de Ciencias de la Salud-Universidad de Carabobo, para el desarrollo de competencias y atención personalizada de los estudiantes de la carrera técnica en Histotecnología. Mediante un nivel descriptivo y un diseño explicativo secuencial, se obtuvo una aceptación de la implementación de la estrategia de aprendizaje enfocada en el estudiante, mediante la revisión del material previo a la clase presencial. No obstante, los estudiantes presentaron dificultades para el acceso y revisión de los recursos, siendo necesario reforzar los contenidos teóricos al inicio de la clase presencial, por ende la atención personalizada permitió desarrollar las competencias acorde a las capacidades de cada estudiante, las cuales se vieron aplicadas a lo largo del semestre tanto en las actividades de consolidación durante el componente teórico como el componente práctico. Por último, se sugiere la constancia durante todo el proceso, para sacar de la zona de confort a los estudiantes que han crecido bajo el modelo tradicional enfocado en la enseñanza.
International Experience and Trends in E-Learning Development in World Economy
Authors: Nguyen Quyen Le Hoang Thuy To , Nguyen Phong Thanh , Huynh Vy Dang Bich , Le Loan Phuc
Published: March 2020

This paper describes and synthesizes the international experience with e-learning in order to draw lessons for its development in Vietnam’s higher education. The e-learning development policies of selected countries are analyzed to measure the success of such policies against their specific national context. This paper also discusses Vietnam’s experiences in terms of national policy goals, the scope and subject of the policies, the investment resources and their allocation, and their approach to e-learning and massive open online courses (MOOCs) in higher education in order to evaluate the effectiveness of the policies.
Increasing Fellow Recruitment: How Can Fellowship Program Websites Be Optimized?
Authors: Shaath M. Kareem , Avilucea Frank R. , Lim Philip K. , Warner Stephen J. , Achor Timothy S.
Published: March 2020

Background:

The purpose of this study was to determine the importance of factors considered by orthopaedic trauma fellowship applicants when evaluating programs. We hypothesized that applicants will prioritize consistent factors when applying to programs. In addition, we assessed how the applicants use the Internet to research potential fellowships. Our goal is to provide fellowships with information to optimize both their fellowship and online contents.

Methods:

At the 2018 and 2019 Orthopaedic Trauma Association meetings, a paper survey was given to each attendee of multiple fellowships' informational sessions. The survey consisted of 25 factors that applicants may consider when evaluating fellowships ranked on a 1-to-5 Likert scale. Additional questions were asked to determine how applicants use the Internet and social media when researching fellowships.

Results:

We received 111 surveys (roughly a 56% response rate). Ninety-eight applicants (88%) indicated that they use fellowship websites to research fellowships. The utilization of fellowship websites was markedly greater than the use of other online resources. The highest rated factors surveyed were surgical experience (mean 4.95; SD 0.26), pelvic and acetabular experience (4.80; 0.52), lower extremity fracture experience (4.75; 0.58), and current faculty at the fellowship (4.55; 0.78). The lowest rated factors were the ability to moonlight (2.04; 1.08), salary (1.88; 1.12), and spine trauma experience (1.45; 0.87). Surgical experience and pelvic/acetabular experience were rated markedly higher than every other factor surveyed.

Discussion:

To our knowledge, this is the first study to demonstrate that most orthopaedic trauma fellowship applicants use fellowship websites when researching programs. Programs may use this study to optimize their fellowship experience to reflect what the applicants value. In addition, programs may use this study as a guide when updating their websites. Fellowships with informative websites that meaningfully highlight their fellowship experience may have a competitive edge in attracting applicants to their programs.