bluuebunny/crossref_metadata_2025 huggingface dataset:
Refletindo sobre características identitárias de docentes universitários, seus saberes e o lócus de seu trabalho
Authors: Zanzini Matheus Gibbin , Belíssimo Jéssica dos Reis , Cortela Beatriz S. C.
Published: April 2021

O artigo traz reflexões teóricas acerca de características identitárias de docentes universitários, seus saberes e o lócus de seu trabalho. Mais especificamente, tratamos de reflexões sobre aspectos relativos às universidades públicas e sobre os profissionais que atuam com a formação inicial de professores. Para tanto, são apresentados quatro modelos de universidade predominantes no mundo, que determinam as suas funções sociais; são apontadas características das identidades profissionais docentes no ensino superior, sendo essas decorrentes do modo de organização das instituições, de teorias da aprendizagem e de teorias sobre formação de professores. Os estudos e reflexões realizadas apontam que as características identitárias, em relação às universidades, se expressam no tripé pesquisa, ensino e extensão, acrescido de aspectos de gestão. Quanto aos aspectos identitários dos docentes, identificamos que são fortemente marcados pela individualidade e o predomínio da identidade profissional de pesquisador em detrimento da de professor.
A construção de um complexo posicionar-se e o fazer etnográfico na Diáspora Africana: o caso dos estudantes angolanos de Lins-SP
Authors: Flor Cauê Gomes
Published: April 2021

Entre os anos de 2004 a 2015 a cidade de Lins –SP recebeu, proporcionalmente, o maior fluxo de estudantes africanos do interior paulista. Lá residiram e estudaram cerca de 140 estudantes provenientes dos Países de Língua Oficial Portuguesa (Palop): Angola, Cabo Verde, São Tomé & Príncipe, Moçambique e Guine Bissau. No entanto, são preponderantes os jovens provenientes de Angola, cerca de 120, sendo, os únicos que se enunciam enquanto comunidade angolana. Ao enunciar esse discurso, os estudantes angolanos agenciam e negociam um conjunto de representações, afirmam diferenças e promovem processos de identificação. Observa-se, assim, a emergência de um posicionamento de caráter étnico protagonizado pelos estudantes expressão da atribuição adscrita da negrura, histórica e cotidianamente aos povos de origem africana em sua experiência coletiva. Os estudantes em sua experiência coletiva no Brasil passam por um processo de racialização e em reação a essa negação, produzem, por meio de um processo de etnicização, um posicionamento ético e político que, por sua vez, articula de forma interseccionada ambas as clivagens, raça e etnia. Isto é, tão importante quanto à intersecção e articulação de ambas as clivagens é explorar o processo, o “como” os estudantes realizam esse agenciamento e negociação.
Análisis de los índices de riesgo de calidad de agua potable (IRCA) en Boyacá entre 2016-2019
Authors: Colmenares Cruz Ramiro Andres , Rojas Rodriguez Diana Lorena
Published: April 2021

La presencia de enfermedades gastrointestinales en la población de los 123 municipios del departamento de Boyacá depende de la calidad de agua que suministran las entidades prestadoras del servicio de acueducto. Existen diferentes factores que afectan la prestación de un servicio de calidad, ya sea, por falta de asesoría, acompañamiento o por la inadecuada gestión de la administración. En este sentido el análisis de los acueductos a través de la inspección, vigilancia y control de la calidad de agua da como resultado el índice de riesgo de calidad de agua IRCA, aspecto que favorece su interpretación para buscar estrategias y reducir la probabilidad de que una población presente enfermedades asociadas a su consumo. Así, este trabajo de investigación analizó los reportes del IRCA correspondientes al periodo comprendido entre 2016 y 2019, a través de un comparativo de su variación en el tiempo, además de evaluar su relación con la ocurrencia de enfermedades transmitidas por el agua, lo que logró determinar que gran parte de los municipios de Boyacá, presentan problemas físicos químicos y microbiológicos en el agua potable, principalmente enfocados a la presencia de E. coli, coliformes totales, cloro residual y turbiedad; encontrándose en diferentes rangos de riesgo, lo que empeora el panorama actual para el consumo de agua potable apta para los habitantes de los diferentes municipios.
Abundancia florística de la quebrada La Grande en la vereda centro Tibasosa-Boyacá
Authors: Camacho Torres Yenny Maritza , Rubiano Luisa Fernanda
Published: April 2021

Contextualización: El municipio de Tibasosa y en especial la quebrada la Grande se caracteriza por poseer ecosistemas estratégicos que debido a su ubicación geográfica y sus condiciones edafoclimáticas presentan ciertas problemáticas ligadas a la explotación agrícola y pecuaria representada en monocultivos y ganadería extensiva

 

Vacío de conocimiento: A pesar del fuerte impacto ocasionado por la actividad no se observa la implementación de medidas de evaluación ni mucho menos de control frente a los continuos cambios producto de dichas actividades. 

 

Propósito: obtener información real de la zona basada en el reconocimiento de la composición florística de la parte media de la quebrada la Grande en la vereda Centro en el Municipio de Tibasosa, información relevante para la implementación de medidas de mitigación aplicadas a la quebrada considerada como uno de los afluentes más importantes por considerarse como un abastecedor del recurso hídrico para el acueducto de la ciudad. 

 

Metodología: se seleccionó un área de muestreo de 2,63 hectáreas donde se desarrolló un recorrido exploratorio y se identificaron las especies más representativas. 

 

Resultados y conclusiones: se identificaron 183 individuos, representados en 15 familias y 17 géneros los cuales ofrecieron diversos usos; entre los que se cuentan la protección de ríos, aprovechamiento de productos maderables  no maderables y medicinales, a partir de los cuales se propusieron medidas de conservación como el desarrollo de proyectos de producción sostenible o el establecimiento de sistemas agroforestales como una alternativa frente a la degradación ambiental presente en la zona como consecuencia de las actividades de agricultura intensiva adelantadas en la misma.
Relieve investigativo en educación y pedagogía en el Eje Cafetero (2010-2017)
Authors: Ospina Héctor Fabio , Arbeláez Gómez Martha Cecilia , Lanza Clara Lucía , Ospina Alvarado María Camila , Garzón Osorio Martha Lucía
Published: April 2021

Inicialmente, podría afirmarse que esta obra es para aquellos que se inician como caminantes y también para los expertos; sin embrago, es una obra, para quienes gustan de la innovación y la transformación de políticas públicas situadas. Es un gran mensaje para las y los profesores del territorio colombiano, ya que son ellos y su hacer pedagógico, quienes comienzan a tomar mayor relevancia a partir en este escrito. Por lo tanto, este libro, sin pretender serlo, es un reconocimiento a maestras y maestros de esta tierra fértil y diversa. Por último y no menos importante, este escrito termina siendo un aporte para quienes creen que la educación y la pedagogía son regiones del saber humano comprometidas con la justicia social y la transformación de Latinoamérica.
Simple radiologic assessment of visceral obesity and prediction of surgical morbidity in high-risk endometrial cancer: a reliability and accuracy pilot study
Authors: Correa-Paris Alejandro , Ochoa Verónica Gorraiz , Hernández Alicia , Gilabert-Estelles Juan , Díaz-Feijoo Berta , Gil-Moreno Antonio
Published: April 2021

Objective: To evaluate the reliability of sagittal abdominal
diameter (SAD)—a surrogate of visceral obesity—in MRI, and its
accuracy to predict the surgical morbidity of aortic lymphadenectomy.
Design: A multicentre reliability (phase 1) and accuracy (phase
2) cohort study. Setting: Three Spanish referral hospitals.
Population: High-risk endometrial cancer patients undergoing
minimally invasive surgical staging. Patients were classified into
subgroups: conventional vs. robotic-assisted laparoscopy, and
transperitoneal vs. extraperitoneal technique. Methods:
Retrospective analysis of data from the STELLA-2 randomized controlled
trial. In the first phase, we measured the agreement of three SAD
measurements (at the umbilicus, the renal vein, and the inferior
mesenteric artery) and selected the most reliable one. In phase two, we
evaluated the diagnostic accuracy of SAD to predict surgical morbidity.
Main Outcome Measures: surgical morbidity was defined by a core
outcome set including variables related to blood loss, operative time,
surgical complications, and para-aortic lymphadenectomy difficulty.
Results: In phase one, all measurements showed good inter-rater
and intra-rater agreement. Umbilical SAD was the most reliable one. In
phase two, we included 136 patients. Umbilical SAD had a good diagnostic
accuracy to predict surgical morbidity in patients undergoing
transperitoneal laparoscopic lymphadenectomy (0.73 in ROC curve). It
performed better than BMI and other anthropometric measurements. We
calculated a cut-off point of 246 mm (sensitivity: 0.56 and specificity:
0.80). Conclusions: Umbilical SAD is a simple, reliable, and
potentially useful measurement to predict surgical morbidity in
endometrial cancer patients undergoing minimally invasive surgical
staging, especially when facing transperitoneal aortic lymphadenectomy.
Effect of Digital Elevation Model Spatial Resolution on Depression Storage
Authors: Hou Jingming , Li Xinyi , Pan Zhanpeng , Wang Junhui , Wang Ruike
Published: April 2021

Surface water storage—including wetlands and other small
waterbodies—has largely been disregarded in traditional hydrological
models. In this paper, the grid resampling method is adopted to study
the influence of the digital elevation model (DEM) grid resolution on
depression storage (DS) considering different rainfall return periods.
It is observed that the DEM grid size highly affects DS, and the higher
the grid resolution is, the larger the DS value. However, when the grid
resolution reaches a certain value, the maximum DS value decreases. This
suggests that a critical grid resolution value exists at which the water
storage capacity of depressions is maximized, namely, 20 m in this work.
This phenomenon is further verified in two test cases with and without
the infiltration process, i.e., calculations of the local area and
without infiltration area, respectively. This research may facilitate
the accurate computation of the DS process, which is greatly affected by
the grid resolution, thereby improving the reliability of hydrological
models.
Impact of Processing Parameters in Plasma Electrolytic Oxidation (PEM) on Corrosion Resistance of Magnesium Alloy Type AZ91
Authors: Aljohani Talal , Aljadaan Sami , Rubayan Meteb Bin , Khoshnaw Fuad
Published: April 2021

This study aims to investigate the effect of the processing parameters
in plasma electrolytic oxidation (PEO) on the corrosion resistance of
magnesium alloy type AZ91. The PEO coatings were prepared on the samples
using alkaline-based electrolyte. Both unipolar and bipolar, different
frequencies and duty cycles were applied. Corrosion tests, using
potentiodynamic polarisation (PDP), linear and cyclic, and
electrochemical impedance spectroscopy (EIS) techniques, were applied on
the as-received and PEO coated samples. Scanning electron microscopy was
used to investigate the surface morphology, e.g. micropores, as well as
to measure the thickness of the coated layer with changing the
processing parameters. The results show that the size of micropores is
interrelated to the duty cycle percentage and current polarities, as the
higher frequency causes thinner coating layers, with fewer micropores,
consequently higher corrosion resistance. In addition, increasing the
duty cycle, a denser and more compact coating was obtained. The XRD
results showed missing peak of the α-Mg phase in a PEO coated sample
using Bipolar, the highest frequency (1666 Hz) and the highest duty
cycle (66.6%). The mils per year calculations showed that the PEO
coated have lower corrosion rate by at least 8 times than the
as-received alloy.
COVID-19 in pediatric cancer: where are the brain tumors?
Authors: Ronsley Rebecca , Bouffet Eric
Published: April 2021

Treatment of pediatric oncology patients generally results in
significant immunosuppression and when the COVID-19 pandemic arose,
there was concern among pediatric oncologists about the implications of
this virus. We reviewed the literature and describe all pediatric
oncology patients with COVID-19 reported worldwide. Within this review,
it is striking that CNS tumors are reported at low numbers (27/466
pediatric oncology patients with COVID-19). This may be related to
decreased inpatient care when compared to other pediatric cancers.
Additional work is needed to understand the risk of infection in this
population and gain insight into the effect on delivery of oncology
care.
Microstructure and electrical conductivity of 3Y-TZ/Al2O3 composites
Authors: Obal Katarzyna , Wyrwa Jan , Kruk Andrzej , Dziubaniuk Małgorzata , Pędzich Zbigniew , Rękas Mieczysław , Brylewski Tomasz
Published: April 2021

Various amounts of Al2O3 (0.25, 0.5 and 1.0mol%) were added to tetragonal
polycrystalline material (3YTZP), prepared using the hydrothermal
crystallization method. The effects of the added amount as well as the
sintering temperature on the microstructure and electrical properties of the
3Y-TZP/Al2O3 composites were investigated. The alumina addition was found to
affect the microstructure of the 3Y-TZP samples obtained after sintering at
1400 or 1500?C only to a slight extent. The lowest values of the blocking
factor, which represents the contribution of grain boundary resistivity to
the total resistivity of a polycrystal, were observed for the 3Y-TZP with
Al2O3 additions of 0.25 or 0.5mol% at measurement temperatures of 550 and
600 ?C. The study proves that the 3Y-TZP/Al2O3 should be taken into
consideration as solid electrolyte in the intermediatetemperature solid
oxide fuel cells.
Effects of sintering temperature on structure and electrical properties of (Na0.48k0.473Li0.04Sr0.007)(Nb0.883Ta0.05Sb0.06Ti0.007)O3 piezoelectric ceramics
Authors: Hong Cheng-Shong , Hong Yi-Tian
Published: April 2021

In this study, the effects of sintering temperature on microstructure,
dielectric and piezoelectric properties are investigated for the
non-stoichiometric (Na0.48K0.473Li0.04Sr0.007)(Nb0.883Ta0.05Sb0.06Ti0.007)O3
(NKLNTSST) piezoelectric ceramics. The results suggest that the
piezoelectric properties are enhanced owing to the more normal ferroelectric
characteristics, higher density, more uniform grains and presence of
polymorphic phase transition regions, which are observed with an increase in
the sintering temperature up to 1080?C. The piezoelectric properties are
weakened owing to the larger degree of diffuse phase transition and more
cationoxygen-vacancy pairs with an increase in the sintering temperature
above 1080?C. The best piezoelectric properties including kp = 40%, d33 =
288 pC/N, ?max = 72.12, loss = 2.57%, Ec = 13.45 kV/cm and Pr = 10.23 ?C/cm2
are obtained at the sintering temperature of 1080?C.
Effects of Remifentanil on Cardiovascular Stimulation Caused by Local Anesthetic With Epinephrine: A Power Spectral Analysis
Authors: Eriguchi Asako , Matsuura Nobuyuki , Koukita Yoshihiko , Ichinohe Tatsuya
Published: April 2021

The objectives of this research were to investigate (a) what was the most effective infusion rate of remifentanil and (b) the degree to which sympathomimetic effects were involved with cardiovascular stimulation by using a power spectral analysis of heart rate variability (HRV). A total of 63 healthy individuals scheduled for sagittal split ramus osteotomy were enrolled and randomly allocated to 1 of 3 groups: remifentanil infusion rate of 0.1, 0.2, or 0.4 μg/kg/min. Anesthesia was maintained with remifentanil and propofol. Before the surgical procedure, 2% lidocaine containing 12.5 μg/mL epinephrine was administered in the surgical field for local anesthesia. Systolic blood pressure (SBP), heart rate (HR), low-frequency (LF) and high-frequency (HF) components in HRV power spectral analysis, and the LF/HF ratio were analyzed. Increases in SBP and HR were observed after local anesthesia in all 3 groups, but no significant differences were observed between the groups. Remifentanil infusion at 0.1 μg/kg/min may be appropriate to minimize cardiovascular stimulation caused by exogenous epinephrine from local anesthesia. Although a rise in the LF/HF ratio was observed after local anesthesia in all groups, no relationship was observed between the cardiovascular changes and the increase in LF/HF ratio. This suggests that sympathomimetic effects are involved to a lesser extent with the cardiovascular stimulation caused by exogenous epinephrine.
Prediction of temperature distribution around fusion zone in fiber dissimilar laser welding of AISI 304 and AISI 420: A wavelet network nonlinear ARX model
Authors: Khan Majid , Saeed Tareq , Ibrahim Muhammad , Chu Yu-Ming , Algehyne Ebrahem A.
Published: April 2021

This paper has proposed a parameter estimation method for a laser welding process inherently highly nonlinear as a result of the highly nonlinear inputs and outputs of the system. Hence, a nonlinear system identification method was developed for the laser welding process using the wavelet network nonlinear autoregressive exogenous (ARX) model. The advantage of ARX over the standard nonlinear models is that it not only considers the delayed input and output regressors but also uses nonlinear functions for mapping, thus making ARX a better candidate for the prediction of nonlinear behaviors. In total, nine available datasets for the training and test phases at pulse durations, pulse frequencies, focal lengths, currents, and welding speeds were considered. Five inputs including pulse duration, pulse frequency, focal length, current and welding speed, and temperature as one output were considered. The first eight datasets were utilized for the training phase and one was used for the testing phase. The results showed that the ARX model had an acceptable performance in training and test phases, and it was capable of identifying the nonlinear and time-variant phenomenon of the laser welding process examined in this paper. For instance, most fitness values for austenitic and ferritic steel samples in the training time histories were 97.13 and 97.95, respectively.
Creative Language Games for Enjoyable Arabic Teaching l al-Al’ab al-Lughawiyyah al-Ibda'iyyah li Ta’lim al-Lughah al-'Arabiyyah al-Mumti'ah
Authors: Rahmawati Fitra Awalia , Nur Ifa Rodifah , Taqiyuddin Muhammad
Published: April 2021

Arabic teaching has the aim in the mastery of four skills; listening, speaking, reading, and writing. Considering to the languages teaching nowadays, educative games are commonly used as inseparable method from their curriculum. This method also had been practiced in Arabic teaching by some teachers. For this context, some rules need to be curricularly formulated. This critical point had not been elaborated curricularly. In this research, Library research model highlighted several studies of Arabic learning practices through game methods; then analyzed it with analytical and descriptive critical discourse methods to formulating the good, proper, and ideal ‘educative game’ in Arabic teaching. This study concluded the language game which emphasized some aspects such as 1) teacher competency, 2) facilities and infrastructure, 3) environmental conditions and situations. These three prerequisites are important in carrying out language teaching through ’curricular’ language games. Thus, educative language games can be formulated curricularly, which can be a simply contribution for practicing Arabic teaching through ‘educative games’.
Concept of Nonverbal Communication by Using Sign Language by Al-Jahidz l Mafhum al-Ittisal Goiru al-Lafdzi bi Istikhdam Lugah al-Isyarah 'inda Al-Jahidz
Authors: Muflihah Muflihah
Published: April 2021

Most of the generation (Arabic linguistic academics) have not comprehended the linguistic theories which initiated by Al-Jahid. This study aims to research on the concept of communication with the signs in Al-Jahid works. To identify these problems in depth and thoroughly, qualitative descriptive study was used. The primary data sources of this research were various sources, mainly Al Jahid book with documentation from the works of Al-Jahid and observation techniques based on the other books about Jahid ‘s point of view, such as Kamal Bisyri and other linguists. The results of this study concluded that: Al-Jahiz is an Arabic language expert who discussed the theory of non-verbal communication. In the case of learning a language, we also have to comprehend the theory of communication, especially communication with signs by Al-Jahiz. His thoughts were followed by several contemporary scholars. Thus, it is highly recommended to the Arabic researchesr to figure out the works of previous Arabic scholars which had been discussing about contemporary linguistic.
The Influence of Online Game on the Learners’ Arabic Vocabulary Achievement
Authors: Kamal Helmi
Published: April 2021

Online game is suggested as a medium that can encourage learners' acquisition of Arabic vocabulary. This research aimed to find out the learners’ vocabulary achievement before applying online game to the learners and to describe the usage of online game in improving learners’ vocabulary achievement effectively. This research used Classroom Action Research. There were 30 learners involved. Teaching processes consisted of two-cycle. Interviews, observation, tests, and documentation were the instruments of this research. The results of the tests were analyzed by using SPSS 20; the results of the interview and observation were analyzed qualitatively. The author found that online game improves learners’ vocabulary. The average score in cycle I was better than the average score in cycle II. The Pretest results in cycle I showed the greatest score obtained by the learners was 76. While in the Post test of the cycle I, the greatest score obtained by the learner was 90. Whereas in cycle II, the greatest score obtained by the learners was 100. Based on the observation, the learners were more excited on studying and focus on finishing their task; the learners could understand well the subject was given, and the learners were more enthusiastic in memorizing vocabulary. The author had successfully provided a new experience for learners who always learn conventionally by involving into the appealing and interactive online game-based learning atmosphere. The author hoped this research could be guidance for the effectuality of the next Arabic language learning through the online game in the class.
Students’ Perception towards the Use of Edmodo in Online-Based English Learning Class at Universitas Fajar
Authors: Tamrin Andi Febriana
Published: April 2021

Online-based learning or lecture is deemed as a new learning methodology among academics in this present era. This method involves a learning process in which lecturers and students could undergo lectures or courses without being present in the classroom.  One of the online applications that supports this method is Edmodo. This study aims to obtain data about the perception of students regarding the use of Edmodo in English language classes at Universitas Fajar. The method used in this study is descriptive study. The result showed that although it has drawbacks, Edmodo is considered as one of the most effective tools in supporting the learning process.
Evaluación del desempeño de reactores electroquímicos asistidos con ultrasonido para la remoción de amoxicilina en fase acuosa
Authors:   , Padilla Robles Blanca Gabriela
Published: April 2021

Nowadays a large amount of drugs which are used both in human medicine and veterinary, and their presence in the aqueous medium has become an issue of interest because they can cause changes in ecosystems affecting living beings. Amoxicillin is an antibiotic widely used due to its ability to treat a large number of diseases. This antibiotic is not completely metabolized in the human body so it can be found in excretions; this leads to their presence in wastewater and consequently their occurrence in the environment. The presence of amoxicillin in the aquatic environment can cause serious disturbances in the ecosystem and in order to avoid these effects, this contaminant must be removed from the medium. Many methods have been studied as chemical oxidation by Fenton reagents, flocculation and photochemical treatment for the removal of amoxicillin and other contaminants as well, but its efficiency is still limited. In this study, an electrochemical process assisted by ultrasound is analyzed for seeking a better removal efficiency of amoxicillin; likewise each process is studied separately. Results show that with an ultrasonic power density of 116W l-1 does not change the concentration of amoxicillin present in the medium. In the other hand, in the electrochemical process which is carried out with anodes of glassy carbon and iron, removals of 95 and 62% were obtained in an hour respectively. Finally, the electrochemical process (Fe anode) assisted by ultrasound removed 55% of the drug in the same period that the processes mentioned above. When the iron anode is being used this performs as insoluble iron oxides provider which excites flocs formation. Nevertheless, ultrasound affects the mixing causing a decrease of flocs and drug removing.
Simulación CFD de la hidrodinámica de un reactor anaerobio de lecho fluidizado inverso
Authors:   , Rodríguez Pérez Hugo
Published: April 2021

En la presente tesis se estudió la hidrodinámica no estacionaria de un reactor de lecho fluidizado inverso (RLFI) operando en el régimen laminar empleado para el tratamiento anaerobio de aguas residuales de la industria cervecera, mediante técnicas de dinámica fluidos computacional (CFD, por sus siglas en inglés). El reactor analizado fue caracterizado experimentalmente previamente por Alvarado-Lassman et al. en 2008, trabajo del cual se tomaron los datos experimentales de expansión del lecho de sólidos para la validación de las simulaciones a las condiciones de operación reportadas. Se construyeron dos modelos computacionales en 2 y 3 dimensiones (i.e. 2D y 3D), con sus respectivos análisis de independencia de malla, en donde para el modelo 2D se realizó un estudio del efecto del paso de tiempo en los resultados numéricos. Para modelo 2D, se realizaron pruebas empleando los modelos de arrastre de Syamlal y O'Brien (1989) y de Gidaspow (1994). Se encontró que el modelo de arrastre de Syamlal y O'Brien (1989) exhibe una mejor aproximación de la expansión de lecho a las distintas condiciones de operación reportadas por Alvarado-Lassman y colaboradores en 2008. Usando estas simulaciones 2D, fue posible obtener una descripción de los patrones de flujo, perfiles de tasa de corte y fracción volumen de sólidos, además de la caída de presión en el reactor. Se encontró que ambos modelos (i.e., 2D y 3D) producen resultados muy similares de expansión final del lecho y de la porosidad de la cama; sin embargo, los valores de la velocidad promedio en ambas fases presentan diferencias significativas a velocidades de alimentación superiores a 8 m/h. Los modelos computacionales propuestos pueden ser de gran utilidad para el análisis de este tipo de rectores, dando que se tiene la posibilidad de estudiar su comportamiento a cualquier escala, permitiendo con esto una mejor comprensión de su hidrodinámica y del efecto de las condiciones de operación evaluadas sobre su desempeño hidrodinámico.
Análisis y propuesta con perspectiva de género para la materia de Literatura Mexicana e Iberoamericana de la Escuela Nacional Preparatoria
Authors:   , Valadez Valderrábano Dagny Ludmila
Published: April 2021

La pertinencia de la presente investigación radica en que la generación que ha crecido en la violencia estará ingresando a las aulas de la ENP en agosto de 2021. En este sentido, se hace necesario mencionar que, durante el proceso de elaboración de esta tesis, se modificó el Programa de la ENP y, pese a cambios importantes, como la adición de una unidad dedicada a la producción femenina en las letras mexicanas y latinoamericanas, este trabajo se hace aún más necesario, ya que en dicho programa no se integra una perspectiva de género, sino que se hace una inclusión que fomenta la división y no la inclusión de distintas perspectivas. Los objetivos específicos de la presente tesis son: 1) evidenciar la necesidad urgente de revisar nuestros programas a través de una visión de género para reflexionar sobre paradigmas sociales; 2) presentar una secuencia didáctica que permita a los profesores incluir la perspectiva de género en sus clases, sin que sea un elemento disruptivo, a través de dos estrategias: la primera son las constelaciones literarias basadas en las investigaciones de Guadalupe Jover y la segunda es la socialización de las reflexiones de los alumnos por medio de la propuesta denominada “Dime” de Adain Chambers; 3) proponer un orden diferente a las lecturas con el fin de demostrar que los textos escritos tanto por hombres como por mujeres cubren una gran variedad de temas y que pueden ser leídos desde diferentes perspectivas. El trabajo está dividido en tres capítulos: en el primero, se plantea el marco teórico que será la directriz para analizar los programas, los textos y la propuesta didáctica. El segundo es propiamente el análisis histórico de la materia y el desarrollo práctico de una constelación literaria planteada en los objetivos generales y particulares, así como la propuesta de los conocimientos esperados; y el tercero presenta la secuencia didáctica y la reorganización de lecturas propuestas.
Small patient – big problem. Diagnostics and treatment of gastroesophageal reflux in infants and young children
Authors: Oracz Grzegorz
Published: April 2021

Gastroesophageal reflux is the movement of gastric contents into the esophagus. Is one of the most common motility disorders in children. In newborns and infants predominant is physiological reflux caused by immaturity of digestive tract. Gastroesophageal reflux disease is reflux that causes complications and/or esophagitis. Article presents actual gastroesophageal reflux disease diagnostic and treatment recommendations according to the European Society for Paediatric Gastroenterology, Hepatology and Nutrition (ESPGHAN) guidelines.
Post-war Civil War Propaganda Techniques and Media Spins in Nigeria and Journalism Practice
Authors: Folayan Bolu John , Ogunjobi Olumide Samuel , Zannu Prosper , Balofin Taiwo Ajibolu
Published: April 2021

In public relations and political communication, a spin is a form of propaganda achieved through knowingly presenting a biased interpretation of an event or issues. It is also the act of presenting narratives to influence public opinion about events, people or and ideas. In war time, various forms of spins are employed by antagonists to wear out the opponents and push their brigades to victory. During the Nigerian civil war, quite a number of these spins were dominant – for example GOWON (Go On With One Nigeria); “On Aburi We Stand”, “O Le Ku Ija Ore”. Post-war years presented different spins and fifty years after the war, different spins continue to push emerging narratives (e.g. “marginalization”, “restructuring”). This paper investigates and analyzes the different propaganda techniques and spins in the narratives of the Nigerian civil in the past five years through a content analysis of three national newspapers: The Nigerian Tribune, Daily Trust and Sun Newspapers. Findings confirm that propaganda and spins are not limited to war time, but are actively deployed in peace time. This development places additional challenge on journalists to uphold the canons of balance, truth and fairness in reporting sensitive national issues. The authors extend postulations that propaganda techniques, generally considered to be limited to war situations, are increasingly being used in post-war situations. Specifically, they highlight that journalists are becoming more susceptible to propaganda spins and this could affect the level of their compliance to the ethics of journalism.
Experiencia en el uso de una plataforma digital para el ejercicio de la comprensión lectora y el vocabulario: percepción de estudiantes de primaria
Authors: Roth Soracco Camila Ignacia , Valenzuela Hasenohr Francisca , Orellana Pelusa
Published: April 2021

Este estudio explora la experiencia de uso de una plataforma digital para ejercitar comprensión lectora y vocabulario según las percepciones de alumnos de enseñanza básica. Se analizaron 493 encuestas aplicadas a estudiantes chilenos de 3º, 4º, 5º y 6º básico de establecimientos subvencionados. Las encuestas son complementadas con respuestas obtenidas en un grupo focal con 17 estudiantes de los mismos cursos. Los resultados indican que la mayor parte de los encuestados perciben positivamente el uso de la plataforma, indicando que fue una ayuda para mejorar su comprensión lectora. A partir de las respuestas, se crean categorías que describen la percepción de ellos. Se discuten implicancias para la investigación y práctica educativa.
Literacidad crítica y medios de comunicación: el profesorado en formación ante el discurso del odio
Authors: Santiago del Pino Michel , Goenechea Permisán Cristina
Published: April 2021

El estudio que presentamos se inscribe en una investigación más amplia en torno a las posibilidades de mejora de la literacidad crítica ante los medios y redes sociales de comunicación, en la formación inicial de los docentes de Educación Secundaria, en línea con los esfuerzos que vienen desarrollando la UNESCO, mediante la colaboración de una red internacional de Universidades. El caso concreto que presentamos tiene como objetivo principal conocer la actitud y conducta comunicativa de los estudiantes del Máster de Profesorado ante los discursos del odio y la violencia, en el contexto de los medios de comunicación multimodales, así como su autovaloración para formar en este tema a su futuro alumnado y la importancia que le conceden. Una muestra de estudiantes de la Universidad de Cádiz (n=72) respondió al cuestionario mostrando posiciones concluyentes en cuanto a la importancia de la alfabetización o literacidad mediática, pero contra lo esperado, no tienen una cultura mediática homogénea. En cambio, sí coinciden en una perspectiva de la experiencia de interacción centrada en lo personal y apenas prestan atención a los fenómenos disruptivos en los medios y redes digitales; por lo que, cuando tienen un incidente con discursos agresivos, les afecta drásticamente y no disponen de estrategias para afrontarlos. Sin embargo, se autoperciben preparados para educar en la materia a su futuro alumnado. Creemos que estos resultados justifican la necesidad de implementar formación específica en literacidad crítica para los futuros docentes de Secundaria.
The Destruction of Nationalism in Twenty-First Century Canadian Apocalyptic Fiction
Authors: Cormier Matthew
Published: April 2021

This article argues that, since the turn of the twenty-first century, fiction in Canada – whether by English-Canadian, Québécois, or Indigenous writers – has seen a re-emergence in the apocalyptic genre. While apocalyptic fiction also gained critical attention during the twentieth century, this initial wave was tied to disenfranchised, marginalized figures, excluded as failures in their attempts to reach a promised land. As a result, fiction at that time – and perhaps equally so in the divided English-Canadian and Québécois canons – was chiefly a (post)colonial, nationalist project. Yet, apocalyptic fiction in Canada since 2000 has drastically changed. 9/11, rapid technological advancements, a growing climate crisis, the Truth and Reconciliation Commission: these changes have all marked the fictions of Canada in terms of futurities. This article thus examines three novels – English-Canadian novelist Emily St. John Mandel’s Station Eleven (2014), Indigenous writer Thomas King’s The Back of the Turtle (2014), and Québécois author Nicolas Dickner’s Apocalypse for Beginners (2010) – to discuss the ways in which they work to bring about the destruction of nationalism in Canada through the apocalyptic genre and affectivity to envision new futures.
Sea Imagery in Hala Alyan’s Salt Houses
Authors: Awad Yousef
Published: April 2021

This article examines how Palestinian American novelist Hala Alyan employs sea imagery in her debut novel Salt Houses (2017) to reflect her characters’ emotions and thoughts. In particular, this article shows that by examining a number of events in which characters are sitting by the sea or wading into the waters of the sea, the reader is given an insight into these characters’ inner feelings and beliefs and the way they perceive their identities and contextualise their experiences as they move from one city to another. As the novel relates the narratives of four generations of a Palestinian family, sometimes using flashbacks, sea imagery increasingly occupies central positions in these narratives which reveal Alia’s and her descendants’ endeavours to express their opinions through memories and experiences of displacement, exile and estrangement. Although the title of the novel rightly heralds the significance of houses, it is the sea that forcefully emerges as a pivotal component in the narratives that these characters relate in their quests for a homeland that lives in the older generation’s memories and the young people’s imaginations. As Alia’s granddaughter, Manar, visits Palestine in the final chapter of the novel and draws the family tree of the Yacoubs on Jaffa’s beach, including her unborn baby, memories and imaginations merge to assert the right of Palestinians to “belong” to their homeland.
“Catastrophically Romantic”: Radical Inversions of Gilbert and Gubar’s Monstrous Angel in Gillian Flynn’s Gone Girl
Authors: Christensen Ashley E.
Published: April 2021

In their landmark text The Madwoman in the Attic: The Woman Writer and the Nineteen Century Literary Imagination (1970), Sandra Gilbert and Susan Gubar pose a series of hypotheses concerning women-authored fiction in the nineteenth century, identifying two archetypical female figures in patriarchal literary contexts – the Angel in the House, and the Monstrous (Mad)Woman. Gilbert and Gubar echo a Woolf-ian call to action that women writers must destroy both the angel and the monster in their fiction, and many contemporary women authors have answered that call – examining and complicating Gilbert and Gubar’s original dichotomy to reflect contemporary concerns with female violence and feminism. Gillian Flynn’s Gone Girl (2012), and in particular the character of Amy Elliott Dunne, explores modern iterations of the Angel v. Monster dynamic in the guise of the “Cool Girl,” thus revising these stereotypes to fit them in a postmodern socio-historical context. The controversy that surrounds the text, as well as its incredible popularity, indicates that the narrative has struck a chord with readers and critics alike. Both Amy and Nick Dunne represent the Angel and the Monster in their marriage, embodying Flynn’s critical feminist commentary on white, upper-middle class, heterosexual psychopathy.
Mystified Life: Joyce Carol Oates’ Adaptation of Wonderland
Authors: Nagalakshmi Rathinasamy , Tamilmani Kulamangalam Thiagarajan
Published: April 2021

It is apodictic that postmodernism gravitates towards fragmented narratives, apparently “real” diegesis and characters in a chaos-ridden frame. The postmodern novel is a “looking glass” that delineates the vertigo instigated by “reality,” which is an artifice that leads to amending interpretations. The paradox of “fictionalizing the reality” creates heterogeneous reverberations among individuals. There is no preconception, but moments of revelation and realization. The theories of language alleviate the transcription of the intense and inevitable relationship between the text and the reader. The theoretical underpinnings, formulated on the basis of the multiple interpretations emanated by readers, foreground the fact that texts are constituents of our linguistic community, and are diversified with individual and cultural experiences. In this way, the consideration of the text extends beyond its stature of being a mere “object.” Joyce Carol Oates’ Wonderland is a text which abounds in intertextual references in the postmodern context. Oates has taken up the issues of destiny and identity from Lewis Carroll’s Alice’s Adventures in Wonderland, as the thematic source. The protagonist, Jesse, does not enter a world of fantasy; rather, she enters a world that is real, absurd and phantasmagorical. The article purports to analyse Wonderland as “hypertext” and accentuate how the fragments of discourses in it, based on Carroll’s work as the hypotext, have acquired a transpositional change of meaning.
On Grünwlad-Letinkov Fractional Operator with Measurable Order on Continuous-Discrete Time Scale
Authors: Pawłuszewicz Ewa , Koszewnik Andrzej , Burzyński Piotr
Published: April 2021

Considering experimental implementation control laws on digital tools that measurement cards are discharged every time unit one can see that time of simulations is partially continuous and partially discrete. This observation provides the motivation for defining the Grünvald-Letnikov fractional operator with measurable order defined on continuous-discrete time scale. Some properties of this operator are discussed. The simulation analysis of the proposed approach to the Grünwald-Letnikov operator with the measurement functional order is presented.
Dental health indicators of the Chernyakhov population from Shyshaki (Ukraine)
Authors: Yanko Nataliia Valentinovna , Artemyev Andrij Vladislavovich , Kaskova Lyudmyla Fedorivna
Published: April 2021

Odontological studies of ancient populations represent different indicators related to health state, lifestyle and human diet. The aim of this paper is to determine the dental health indicators in the Chernyakhov population (the end of the IVth c. AD) from Ukraine. The paper also attempts to identify the relationship between sex and these indicators in the studied population. The sample analysed consisted of the dental remains of 25 adult individuals (11 males and 14 females) and 8 children individuals excavated from the cemetery at the archaeological site of Shyshaki (Poltava region of Ukraine). A total of 760 teeth were examined for caries, tooth wear and calculus clinically, and 647 teeth of adults were observed radiographically. The studied population presents frequency of caries in individuals of 12.5%. This indicator in adult male and female dentition is 42.86% and 14.0% respectively, and 25% in children. The presented population frequency of caries teeth was 0.88%. Females presented higher caries rate than males (2.72 % females vs. 0.36 % males) (p<0.05). The most frequent were caries lesions of cementum-enamel junction (40%) and combined lesions of crown and root (40%) with no difference in terms of sex. Frequency of dental wear in adult individuals and 8-10 year-old individuals was 100%. The studied population represented TWI (tooth wear index) in adults (2.26), which increased with aging, but the difference in terms of sex is insignificant. Calculus was observed in 64.28% of the females and 63.33% of the males, showing no statistical difference (p>0.5). These findings confirm a very low rate of caries teeth in the territory of Shyshaki during the Late Roman period, which could be related to regional diet and concentration of fluorine in drinking water. The Chernyakhov population presents high dental wear and similar frequency of dental calculus when compared to the population from Roman Britain. Females presented significantly higher frequency of caries than males, whereas no significant sex differences were found regarding dental wear, calculus, and localisation of caries lesions. The authors presume that dental health indicators in the Chernyakhov culture need to be studied more with bigger sample size and data of the populations from other regions of Ukraine.
A rare case of pancraniosynostosis observed in a historical skull from the 19 th century cranial collection named “Królestwo Polskie” (“Polish Kingdom”)
Authors: Cieślik Agata , Nowaczewska Wioletta , Kołtowska Anna , Henneberg Maciej
Published: April 2021

Rare diseases are a challenge in paleopathological research, mainly due to the ambiguity of skeletal signs, bad preservation state of the material, and lack of the reference material. The aim of our article is to present the skull characterized by the decreased values of the metrical traits and numerous pathological features of the cranial morphology and make an attempt to determine the possible cause of the observed anomalies. The subject of our study is a cranium No KP 131 belonging to Polish skeletal collection named „Polish Kingdom”. We used both standard anthropometric methods, as well as the imaging techniques to detect the probable causes of the observed pathological changes. This specimen presents a complex of pathologies. Decreased values of the metrical features, thinning of the lateral walls of the neurocranium and the presence of platybasia were probably caused by premature closure of all main cranial sutures. Pathologies observed in cranium No 131 XIX might have had a common cause in some form of syndromic disorders.
Age at menarche among rural school youth in west-central Poland: variation with weight status and population growth
Authors: Bartkowiak Sylwia , Konarski Jan M. , Strzelczyk Ryszard , Janowski Jarosław , Karpowicz Małgorzata , Malina Robert M.
Published: April 2021

Studies of age at menarche in Poland have a long history and consistently show an urban-rural gradient. The objectives of the study were to to estimate the age at menarche among school girls resident in ten rural communities of the Greater Poland province in 2016 and to compare ages at menarche by weight status and by population growth. The sample included 1146 girls, 7–16 years of age, resident in ten rural communities. Menarcheal status was obtained via interview. Heights and weights were measured; the BMI was calculated. Based on the latter, the girls were classified as thin, normal weight and overweight (including the obese) relative to IOTF criteria. Population growth between 1986 and 2016 in each community was estimated from local records. Ages at menarche were estimated with the probit regression protocol (SPSS) using the logistic model with log 10 transformation for the total sample and for the subsamples by weight status and population growth. The median age at menarche for the total sample of rural girls was 13.25±0.20 years. Menarche was earlier among Overweight (13.06±0.32 years) compared to Normal Weight (13.25±0.37 years) and Thin (13.81±0.41 years), and among girls resident in communities with Major population growth (12.58±0.44 years) compared to Little/No growth (13.65±0.14 years). Results of the present survey were generally consistent with recent surveys of age at menarche among rural girls in Poland and among girls classified by weight status. Corresponding comparative data relating menarche to population growth are lacking.