bluuebunny/crossref_metadata_2025 huggingface dataset:
Self-Regulation of Emotion in Students in Yogyakarta Indonesia: Gender Differences
Authors: Alhadi Said , Saputra Wahyu Nanda Eka , Purwadi Purwadi , Muyana Siti , Supriyanto Agus , Fatmawati Dwi
Published: November 2019

Abstract: The purpose of this study was to identify whether there are differences in self-regulation of emotion skills of male and female students. This study is a comparative study with a sample of 796 students (452 males, 344 females). The sample selection is taken using simple random sampling technique. The instrument used is the scale of self-regulation of emotion. Data analysis used to identify differences in self-regulation of emotion skills of male and female students is independent samples test. The findings of the study indicate that there is a significant difference between the self-regulation of emotion skills of male and female students. This study recommends counseling service to improve self-regulation of emotion skills.Abstrak: Tujuan dari penelitian ini adalah untuk mengidentifikasi apakah terdapat perbedaan self-regulation of emotion antara siswa laki-laki dan perempuan. Penelitian ini adalah penelitian komparatif dengan sampel 796 siswa (452 laki-laki, 344 perempuan). Pemilihan sampel diambil menggunakan teknik cluster random sampling. Instrumen yang digunakan adalah skala self-regulation of emotion. Analisis data yang digunakan untuk mengidentifikasi perbedaan self-regulation of emotion siswa laki-laki dan perempuan adalah independent samples test. Temuan penelitian menunjukkan bahwa terdapat perbedaan yang signifikan antara self-regulation of emotion siswa laki-laki dan perempuan. Studi ini merekomendasikan layanan konseling untuk meningkatkan self-regulation of emotion siswa.
Blended Learning between Team Games Tournament and Web-Based Module to Improve Students’ Competency of Light Vehicle Programs
Authors: Wijaya Robby , Widiyanti Widiyanti , Suhartadi Syarif , Basyirun Basyirun
Published: November 2019

Education plays an important role in printing Human Resources (HR), includingvocational schools. Learning methods and the availability of learning resources becomes very important and needed. The existence of the internet needs to be utilized to create innovative and interesting learning. The research method used is Classroom Action Research (CAR) which aims to determine the effect of the implementation of the blended learning team games tournament (TGT) and the Web-Based Module as an Effort to Increase the Achievement of Student Competencies in the Light Vehicle Engineering Program. The study was onducted in class X TKR 1, SMKN 1 Singosari in the 2017-2018 school year as many as 32 students. The treatment is given consisted of Action 1and Action 2 by observing the activities of the teacher, students, and post-test scores. In the pre-action, the percentage of completeness obtained was 67.74% while the Minimum Completeness Standard was 75%. After action 1, the achievement of student competence reached 93.5% with an average value of 86.53. While in Action 2, student learning completeness was 87.09% with an average value of 81.3. From the two actions implemented, it is found that the average results are above the minimum standard of a predetermined value of 75. The application of blended learning can improve student learning outcomes because the learning process is more interesting, active and innovative. students are more enthusiastic and happy with the learning model. With the tournament, students are trained to be responsible, care for friends, study independently and compete healthily. The application of Blended Learning team games tournament (TGT) and Web-based modules are recommended to be applied to other subjects because it is proven to be able to increase the achievement of student competencies and to be creative, innovative and interesting method.
First Cystic Fibrosis Patient Registry Annual Data Report-Cystic Fibrosis Foundation of Iran
Authors: Aghamohammadi Asghar , Keivanfar Majid , Navaei Safoura , Shirzadi Rohola , Masiha Farzad , Allameh Zahra , Heydari Min , Eslami Solat , Azizi Gholamreza , Reisi Mohsen , Modaresi Mohammadreza
Published: November 2019

Abstract- Cystic fibrosis (CF), as a fatal genetic condition, is associated with high morbidity and mortality rates. In Iran, limited studies exist on this disease. This study aimed to compare the demographic, clinical and paraclinical data of CF patients. This cross-sectional study was conducted in 2014-2015 on 174 CF patients referred to the Tehran Children Medical Center hospital, which is the main referral center for CF. For each patient, the forced expiratory volume in one second (FEV1) was measured, and the comparative demographic, clinical, and laboratory data of patients were recorded. Overall, 59% of studied patients were boys (n=102) and 41% were girls (n=72). The mean patient age (and standard deviations) was 7.1±5.7 years, with a range of 10 days to 28 years. In 67% of cases, the disease was diagnosed before their first birthday. The patients in this study were classified based on the FEV1 into mild (62%), moderate (33%) and severe (5%), indicating the degree of pulmonary complications. Cultures of respiratory secretions were positive for Pseudomonas aeruginosa and Staphylococcus aureus, in 23% and 16% of cases, respectively. In total, 61% of patients (n=83) were assigned to receive oral azithromycin for prophylaxis. Gastroesophageal reflux (reflux) was the most common gastrointestinal complication (35%). Regarding the complex nature of CF and the necessity of constant monitoring of patients during the life-span, the comparative demographic, clinical and laboratory analysis of patients and registering and standardization of patients’ data can be a major step in the better understanding of the disease, and thereby increasing the quality of life and life expectancy in the affected population.
The Correlation of Irisin Levels and Some Trace Element as a Potential Mark Diagnosis of Gestational Diabetes Mellitus
Authors: AL-Ghazali Majid Jawad , Addai Ali Hanaa , Mohammad AL-Rufaie Mohauman , AddayAli Rawaa
Published: November 2019

Abstract- The objective of this project was investigating and comparing changes of serum irisin, and trace levels of the elements (Zn, Cu, Mg) in pregnant women with gestational diabetes mellitus GDM in addition to wholesome pregnant group, examining the correlation among (Zn, Cu, Mg) levels and irisin insulin impedance in GDM pregnant women. Sixty GDM pregnant women and thirty wholesome pregnant women were examined. The pair groups were matched for age, and maternal serum irisin. Insulin levels and gestational age were calculated by the assay for enzyme-linked immune sorbent kit at gestation at 24-28 weeks. The confederation between clinical and biochemical parameters and maternal serum irisin levels were predestined. Serum levels of glucose, body mass index, insulin, OGTT, HOMA IR, HOMAβ, HbA1c, Hb%, irisin, Zn, Cu and Mg were investigated and analyzed for the examined collection as well as control samples. Pregnant women with GDM disease had noteworthy rising fast blood glucose FBG (P=0.004), first-hour OGTT glucose (P=0.001), second-hour OGTT glucose (P=0.001), fasting insulin FI (P=0.001) levels, HOMA IR (P=0.001), HOMAβ (P=0.001), HbA1C (P=0.001), Hb% (P=0.017), as contrasted to healthy women. Levels of irisin serum were significantly minimizing (P=0.001) in women, and sequentially more advanced GDM (mean±SD=71.65±8.03) than healthy pregnant controls (mean±SD 136.54±22.56). Analyses among irisin levels of anthropometric and biochemical values in gestational diabetes patients disclosed that none of the scrupulousness values were remediated with serum irisin level. His present outcomes indicate that the levels of serum irisin might be presented as an incoming GDM marker with decreased irisin levels being GDM symptomatic.
The Prevalence of a Clinically Silent Nephrolithiasis in Baghdad Population: An Initial Ultrasound Screening Study From Iraq
Authors: Tahir Nadhum L. , A. Hassan Qays , M. Kamber Harth
Published: November 2019

Abstract- Asymptomatic or clinically silent kidney stones are possibly serious because, in their expected passage, they may cause infection, obstruction and renal impairment. The purpose of this study was to determine the prevalence of silent kidney stones in a sample of Baghdad population and consider how this value could affect the justification for a screening system. To our best knowledge, this is the first study of its kind conducted in Iraq. We investigated 714 consecutive patients who sustained an abdominal ultrasound at our hospital with further kidney screening. All these patients did not have clinical signs and symptoms of nephrolithiasis. Age, sex, the indication for ultrasound, the size, side, and the number of the discovered stones were recorded. We observed silent kidney stones in 3.4% of patients. Males were stone carriers mostly. Stones were detected more in the left kidney than the right. Distinctly, multiple stones and stones of a large size were minimally seen. We conclude that the prevalence of clinically silent nephrolithiasis of 3.4% does not support a global screening. Yet, this screening may be justified in a limited pattern for those male subjects higher than 50 years, having a positive family history of renal stones, and their socioeconomic status is granted.
A Case of Mitral Valve Metastasis From Breast Carcinoma Mimicking as a Mitral Valve Regurgitation
Authors: Heidari Aghigh , Sabzi Fereidoun
Published: November 2019

Abstract- Metastatic involvement of cardiac valve and pericardium mimicking a cardiac valve pathology accompanied with cardiac tamponade is a rare phenomenon. These metastases commonly arise from the lymphoreticular system, the pulmonary system, and breast. Metastatic spread of breast carcinoma to the cardiac valve is exceedingly rare, and only two case reports have been detected in English literature so far. We report a rare case of a patient with adenocarcinoma of the breast, which presented with severe mitral valve regurgitation and pericardial effusion which was managed urgently with mitral valve replacement. Our case shows the probability of combined metastatic pericardial and valve involvement in patients with breast adenocarcinoma. The patient was treated with mitral valve replacement and intrapericardial infusion of cisplatinum drug to control possible recurrent effusion.
Bilateral Krukenberg Tumor in a Pregnant Lady: A Case Report
Authors: Dehghan Parvaneh , Kakhki Samaneh
Published: November 2019

Abstract- Krukenberg tumors are rare metastatic ovarian tumors with its primary site being the gastrointestinal tract as a most common site and poor prognosis. We hereby, present a 25-year-old pregnant female suffering from abdominal pain and iterative vomiting episodes. She was diagnosed with a terminal stage of the malignant disease. She underwent total ovariectomy without any radiotherapy. Histological examination of the specimen yielded diagnosis of Krukenberg tumor. Ten days later, the patient underwent a natural vaginal delivery in the 25th gestational week because of labor pain, and we extracted a dead male newborn of 31 cm, 510 g, AP score 0. Three weeks later, the patient died because of pulmonary failure
Arvejas Obonuco Andina y Obonuco San Isidro como alternativas productivas para la sustitución de cultivos ilícitos en el sur de Colombia
Authors: Zuluaga-Mogollón María Victoria , Zuluaga-Mogollón María del Pilar , Rozo-Leguizamón Yanine
Published: November 2019

El objetivo de esta investigación retrospectiva de tipo cualitativo, fue develar los efectos percibidos por los productores de arveja del municipio de Puerres, ubicado en el departamento de Nariño (Colombia), tras la adopción de las variedades de arveja (Pisum sativum) Obonuco Andina y Obonuco San Isidro. Para esto, se adelantó un proceso de construcción participativa con población rural campesina e indígena, con quienes fueron analizadas las dinámicas productivas, socioculturales y ambientales del territorio. El estudio abarcó el período comprendido entre 1980 y 2017, determinando la percepción de los dos grupos focales, frente a las dimensiones mencionadas y sus efectos en el territorio. Los resultados indican que, además de los atributos agronómicos de las dos variedades objeto de estudio y de su aceptación en el mercado, se presentaron aspectos que presionaron el territorio y que actuaron como catalizadores para su adopción. Igualmente, se determinó que, además de la reconversión productiva de cultivos de cereales, estas variedades se establecieron como la opción productiva tanto económica como socialmente sostenible, ante la necesidad de la sustitución de cultivos ilícitos en el sur de Colombia.
La curva de aprendizaje y su contribución al desempeño del talento humano en las organizaciones: una revisión teórica
Authors: Cardona-Arbeláez Diego Alonso , Del Río-Cortina Jorge Luis , Romero-Severiche Ana Karina , Lora-Guzmán Harold
Published: November 2019

Este documento presenta una revisión sobre el concepto de curva de aprendizaje, sus orígenes, modelos y principales aplicaciones. Se realizó una investigación documental, para la cual se consultaron bases de datos especializadas, abordando los principales autores y los aspectos característicos de cada modelo. Los hallazgos indican la importancia del estudio de las curvas de aprendizaje, tanto a nivel individual, grupal y organizacional. Estas últimas pueden ser fuente para la toma de decisión en las empresas, ya que los distintos modelos de curva de aprendizaje pueden brindar información, referente a: metas de producción, evaluación de rendimientos, estimación de mano de obra, optimización de precios y costos, para crear ventajas competitivas. Los trabajos revisados destacan el beneficio de las curvas de aprendizaje en temas como: la planeación, la capacitación y el control de procesos. Se concluye que las curvas de aprendizaje, si bien iniciaron en la industria de la aviación, se han difundido a diversos sectores industriales, con la aportación de nuevos modelos matemáticos para su estimación.
Modelo de gestión de la investigación para incrementar la producción científica de los docentes universitarios del Perú
Authors: Valles-Coral Miguel Angel
Published: November 2019

La universidad peruana atraviesa un profundo proceso de cambios que ameritan nuevos modelos de gestión universitaria, orientados a la búsqueda de soluciones y al incremento de la producción científica. El objetivo fue diseñar un modelo de gestión de la investigación, basado en la teoría del modelo de promoción de la investigación, de manera que se incremente la producción científica de los docentes. Se realizó una investigación no experimental, descriptiva propositiva, con una muestra de 62 docentes que realizan investigación, a quienes se aplicó un cuestionario para recoger datos sobre la problemática. El 87% de los encuestados considera que la gestión de la investigación es mala o regular, mientras que el 91% considera que no se hace nada por la producción científica. Se concluye con el diseño de un nuevo modelo de gestión, basado en tres pilares: institucionalidad, para garantizar la adopción del modelo en la universidad; gestión de la investigación propiamente dicha, que busca fortalecer las competencias para la publicación de artículos científicos; y gestión administrativa, para asegurar las condiciones logísticas y operativas en la ejecución de los proyectos de investigación.
Experiencias ludoevaluativas en el contexto universitario: la evaluación desde una comunidad de aprendizaje
Authors: Borjas Mónica Patricia , Navarro-Lechuga Edgar , Puentes-Ospino Dailin , De la cruz-García Johana , Yepes-Martínez Julián , Muñoz-Alvis Andrés , Montero Pedro , De La Hoz-Del Villar Karla , Pérez-Moyano Yuddy , Polo Jean David
Published: November 2019

La ludoevaluación es una práctica evaluativa que busca valorar los desempeños de los estudiantes a través de experiencias lúdicas, que permitan obtener información oportuna y pertinente sobre sus aprendizajes y reducir los niveles de ansiedad, propios de las experiencias de evaluación tradicional. El objetivo del estudio fue comprender las dinámicas que se generan al realizar experiencias de evaluación, mediadas por la lúdica, en el contexto de una comunidad de aprendizaje docente universitaria. Se trató de una investigación con diseño descriptivo, en la que se desarrollaron experiencias de ludoevaluación con 160 estudiantes de una Universidad privada colombiana. Estas experiencias se llevaron a cabo en 5 fases: fundamentación teórica, diagnóstico, diseño, aplicación y reflexión. Los resultados evidencian un cambio en la percepción de los estudiantes frente a los procesos evaluativos, sobresaliendo emociones positivas, como: el entusiasmo, la alegría y la seguridad. Se concluye que es posible valorar los aprendizajes en escenarios menos estresantes a los que habitualmente se realizan, propios de la evaluación tradicional de corte normativo y cuantitativo.
ARTICULANDO CURRÍCULO, PRÁTICA E CULTURA: EXIGÊNCIAS FORMATIVAS QUE IMPACTAM A ESCOLARIZAÇÃO DE MULHERES NEGRAS NO ENSINO SUPERIOR BRASILEIRO
Authors: Dos Santos Joao Paulo Lopes , Moreira Núbia Regina
Published: November 2019

Este artigo objetiva refletir os impactos das práticas curriculares na escolarização de mulheres negras no Ensino Superior. Entendemos que a prática de uma educação que atende às várias culturas permite que, tanto educandos quanto educadores reflitam padrões hierárquicos e opressivos das relações de poder preconizados pelos modelos curriculares e práticas que valorizam os sistemas eurocêntricos e colonialistas. Assim, é imprescindível articular os elementos epistêmicos de subjetivação da mulher negra, estruturados nas relações entre gênero, raça e classe, tendo como plataforma de estudo as práticas curriculares no campo empírico de investigação. A metodologia se baseia na perspectiva relacional de Bourdieu; fez-se uso da entrevista semiestruturada e da revisão bibliográfica. Conclui-se que as práticas curriculares, muitas vezes oportunizaram caminhos para um movimento excludente, o que contribuiu para que as estudantes se sentissem pré-julgadas, descaracterizando, assim, as adversidades ao invés de promovê-las. As estudantes negras ressignificaram suas subjetividades ao reafirmar, como ato político, a vontade de permanecerem na universidade. E assim seguem resilientes e se (re) construindo.
UMA ANÁLISE DA CORRELAÇÃO DAS LEXIAS DOS SUJEITOS NOS DISTRITOS DA MICRORREGIÃO DE MARAPANIM NO ESTADO DO PARÁ
Authors: Alves Thamy Saraiva , Silva Maria do Perpétuo Socorro Cardoso da , Alves Fábio José da Costa
Published: November 2019

Este artigo objetiva tratar as variantes linguísticas encontradas nos distritos da microrregião de Marapanim no Estado do Pará, respectivamente as variações semântico-lexicais. Em que os dados registrados em uma carta lexical, intitulada “O quadro de correlação das lexias dos sujeitos” apresentando uma correlação das ocorrências referentes a um determinado campo(s) semântico(s), que constituíram o corpus das análises, que privilegiou o tipo descritivo, numa interpretação quantiqualitativa com base nos aportes teóricos dos autores Ferreira & Cardoso (1994); Labov (1983); Tarallo (1988); Pottier (1978); Silva (2002) entre outros. A informatização de dados utilizando o software estatístico SPSS – Statistical Package for the Social Sciences. A relevância da pesquisa acontece por meio de estudos da linguagem, se justificando nas práticas socioculturais do sujeito, como consequência natural dada à importância do léxico para o homem, visto como ser social e epistemológico portador de uma cultura local ou regional.
O PRONERA COMO POLÍTICA PÚBLICA EDUCACIONAL DO CAMPO: CONTEXTOS E CONTRADIÇÕES
Authors: Dos Santos Arlete Ramos , Carvalho Mauro dos Santos
Published: November 2019

O objetivo deste artigo é mostrar como o Programa Nacional de Educação na Reforma Agrária (Pronera) foi implementado na Universidade Estadual do Sudoeste da Bahia (UESB) como uma política pública de educação do campo, por intermédio dos atores governamentais e não governamentais. Utilizou-se como metodologia, a relação existente entre os atores/sujeitos investigados na pesquisa, ressaltando as reivindicações da sociedade civil em prol de uma educação pública que fizesse frente às contradições impostas pela sociedade capitalista. Foi utilizado o método de estudo de caso, juntamente com as contribuições de algumas categorias do Materialismo Histórico Dialético (MHD). Os resultados alcançados com este trabalho demonstraram que o Pronera/UESB, enquanto política pública, cumpriu plenamente sua função social relacionada aos preceitos pedagógicos e acadêmicos, porém, não cumpriu sua função social em relação ao despertar e ao processo formativo dos atores/sujeitos beneficiários relacionados à ruptura dos fenômenos de ordem social, política, cultural e econômica.
STRATEGIES THAT INCREASE THE LEVEL OF LISTENING COMPREHENSION WHILE LISTENING TO ORAL TEXTS
Authors: Rubtcova Mariia , Varlamova Yulia
Published: November 2019

The present paper examines the effectiveness of strategy instructional program elaborated for 120 intermediate students with different previous learning backgrounds attending language center in Saint Petersburg.  The objective of the study is to develop program and improve the level of listening comprehension through focusing on potential problems while doing listening tasks. The study either aims at determining and mastering cognitive, metacognitive, social strategies on the part of the students. The authors hypothesize that learners can gain proficiency in using strategies with practice. Strategies can be easily acquired, they facilitate learning, however, number of them are not always transferred to new tasks and used by students as effectively as before when the activity is over. Therefore, systematic strategy instruction component would be important as learners become aware of the learning process and gain the ability to control their own learning through the use of appropriate learning strategies. The authors of the paper have made an attempt to demonstrate that the number of listening comprehension problems reported by the students could be reduced by applying specially designed comprehension activities that assist learners in evaluation of their efforts and assessment of personal achievements. The pilot groups were asked to complete the questionnaires at the beginning and at the end of the course that allowed monitoring the students’ progress throughout the course.  At the end of the study, the pilot groups participating in the strategy instructional program were found to be more successful in foreign language comprehension.
THE IDEA OF LATIN AMERICAN UNITY FROM THE PERSPECTIVE OF PERIPHERAL MIDDLE SCHOOL POETS
Authors: Fregoso Bailon Raul Olmo , Lara Gilberto, P. , Leija María
Published: November 2019

This research shows how a group of students from a middle school in one of the poorest and violent neighborhoods in Guadalajara, México, make poems to express how they experience and signify the idea of Latin American unity in light of non-Western, perspectives. Drawing from Latin American philosophers such as Simón Rodríguez and Ramón Xirau, the method of this study draws from poetic images to construct theoretical arguments in education to analyze the poems produced by the students as active creators of Latin American epistemology in education. The findings suggest that the students as peripheral poets can enrich the foundations of critical pedagogy for Latin American unity. Of particular interest is the way in which the students challenge the distinction between colonialism and coloniality of power. This paper aims to show how Western critical pedagogy can be enriched by taking into account thinkers on education from the “Third World.”
EDUCACIÓN DEL CUERPO Y EXTENSIÓN UNIVERSITARIA: EXPERIENCIAS, REFLEXIONES Y PERSPECTIVAS
Authors: Piríz Rodrigo , Vaz Alexandre Fernández , Viñes Nicolás
Published: November 2019

Apresentação dossiê temático
PENSAR LA EXTENSIÓN DESDE LA EDUCACIÓN FÍSICA EN CLAVE DE DERECHOS: PERSPECTIVAS HISTÓRICAS Y POSIBILIDADES ACTUALES EN LA UNIVERSIDAD NACIONAL DE LA PLATA
Authors: Viñes Nicolás , Simoy María Silvana , Scarnato Matín
Published: November 2019

En este artículo nos proponemos reflexionar acerca de las características que ha ido asumiendo la Extensión en la Universidad Nacional de La Plata, recuperando los sentidos que circulan en el cotidiano universitario, tomando dos momentos relevantes, su fundación y la reforma del estatuto en 2008, debido a que en ésta última la extensión adquiere una dimensión distinta que consideramos posibilita nuestros proyectos. En este primer momento combinamos en el análisis distintas fuentes documentales y procuramos poner en evidencia el corrimiento desde una perspectiva de divulgación y transferencia hacia una perspectiva de derechos. A continuación, planteamos algunos aspectos que consideramos relevantes para comprender el lugar que viene teniendo la Educación Física en las prácticas de extensión de nuestra Universidad. Por último, en virtud de un proyecto de extensión que venimos desarrollando, desde el año 2017, con el objetivo general de propiciar la continuidad de trayectorias educativas en jóvenes de escuelas secundarias, planteamos algunos argumentos que subrayan la perspectiva teórica y política que da sentido a nuestra propuesta.
EXTENSIÓN Y EDUCACIÓN, PENSANDO UNA POSIBLE RELACIÓN PARA LA EDUCACIÓN DEL CUERPO
Authors: Lescano Augustín , Musicco Damián
Published: November 2019

Este trabajo se enmarca en el proyecto de extensión: “Diversidad cultural y cuerpo. Democratizando la enseñanza de las prácticas corporales”. Aquí se propone pensar la relación entre extensión y educación, más precisamente con la educación del cuerpo. Pero esta relación que pensamos abandona aquella idea asistencialista entre extensión y educación. Muchas veces coincide con la extensión una relación directa entre educación y asistencia, produciendo una lógica de extensión a partir del asistencialismo educativo. Se dice de esta idea que el trabajo fundamental es la ayuda sobre el proceso educativo de los individuos, se diagnostican las demandas entendidas en términos de una necesidad y se arma el proyecto: extensión-educación-asistencia. Nuestra propuesta es incompatible con esa idea; ya que entendemos que la extensión y la educación del cuerpo no tienen que transformarse en una práctica asistencialista.
INTERDISCIPLINA EN TENSIÓN: UNA PRÁCTICA DE EDUCACIÓN FÍSICA
Authors: Caldeiro Martín , Rodríguez Camilo
Published: November 2019

En el siguiente trabajo nos proponemos analizar e1 proceso desarrollado en el marco del acuerdo EFI del 2014. Particularmente, nos centraremos en visibilizar y analizar la dimensión inter y transdiciplinaria del proyecto y las tensiones que se presentan en torno a las mismas para pensar las diferentes prácticas de extensión universitaria. De este modo, en la medida que, el proyecto es integrado por educación física, nos proponemos problematizar a partir de esta experiencia particular la tensión a la que desde la disciplina nos enfrentamos. Nos basamos, en tres documentos elaborados por el EFI Movimientos barriales y manifestaciones de la cultura, en los que se establecen los acuerdos de trabajo para la intervención de los servicios universitarios en el Programa Integral Metropolitano.
UM OLHAR SOBRE AS PRÁTICAS AVALIATIVAS DOS PROFESSORES QUE ENSINAM MATEMÁTICA
Authors: Jucá Rosineide Sousa
Published: November 2019

O objetivo deste trabalho é investigar as concepções e práticas avaliativas dos professores que ensinam matemática na Educação Básica e Ensino Superior. A metodologia de pesquisa adotada foi do tipo qualitativa, na qual  elaboramos e aplicamos um questionário para 112 professores que ensinam matemática na Educação básica e no nível superior da Cidade de Belém do Pará. A revisão de literatura sobre o tema propiciou trazer uma ampla discussão sobre o processo de avaliação da aprendizagem, em especial em matemática. As análises dos dados nos apontaram que os professores têm uma prática voltada para a concepção de exame e que embora digam utilizar a avaliação na perspectiva formativa, não a identificamos na sua prática avaliativa. Os professores também confundem critérios com instrumentos de avaliação ou formas de ensino; apesar disso, observamos que os professores possuem conhecimento de variados instrumentos de avaliação e que utilizam os mesmos.
Nuclear-Magnetic-Resonance Study on Oil Mobilization in Shale Exposed to CO2
Authors: Wang Haitao , Lun Zengmin , Lv Chengyuan , Lang Dongjiang , Luo Ming , Zhao Qingmin , Zhao Chunpeng
Published: November 2019

Reservoirs in the Qian 34 10 rhythmic layer of the Qianjiang Basin are shale oil reservoirs with intersalt sediments. During the natural depletion and development process, production rate of oil decreases rapidly. Water injection and CO2 injection are potential technologies for enhanced oil recovery (EOR) in shale. Because of high salt content in formations, unsaturated water dissolves salt and damages reservoirs. CO2 does not react with salt, and CO2 injection does not damage reservoirs. Moreover, CO2 could enter the micropores of the reservoir rocks and mobilize oil by diffusion, extraction, and swelling mechanisms. To verify oil mobilization in the shale exposed to CO2, exposure experiments based on nuclear magnetic resonance (NMR) were conducted in this study.

NMR T2 spectrum could reflect the oil in place and be used to calculate the oil content of rock with low permeability. In this study, 10 fresh shale samples (from six depths) were analyzed, and the oil contents were determined using NMR T2 spectra. Two of the shale samples with high oil contents were selected for the CO2-exposure experiment. At a temperature of 40°C and a pressure of 17.5 MPa, the fresh shale samples were exposed to CO2, and the NMR T2 spectra obtained were used to continuously determine the oil content of the shale. The oil mobilization in the shale exposed to CO2 was determined.

The results of the NMR T2 spectra showed that the NMR volume fractions of the remaining oil in seven fresh shale samples were above 10%. The recovery of the S5# shale exposed to CO2 was 51.2% after 8 days, whereas that of the S9# shale was 55.8% after 6.1 days. These results indicated that more than half of the shale oil was mobilized during the relatively long exposure time after CO2 injection. NMR T2 spectroscopy results also showed that oil in all pores could be mobilized as the exposure time increased.

This study showed the quantitative results of the CO2-injection method and EOR in a shale oil reservoir of the Qianjiang Basin. All conclusions support starting a CO2-EOR pilot project in the shale oil reservoir with intersalt sediments with ultralow permeability.
Silica and Graphene Oxide Nanoparticle Formulation To Improve Thermal Stability and Inhibition Capabilities of Water-Based Drilling Fluid Applied to Woodford Shale
Authors: Aramendiz Jose , Imqam Abdulmohsin
Published: November 2019

Drilling-fluid design for shale plays aims to deal with the lack of wellbore stability associated with fluid-invasion, shale-swelling, and cuttings-dispersion phenomena. Although oil-based mud can be used to achieve these goals, environmental and economic concerns limit its application. This research evaluates the potential of using silica (SiO2) nanoparticles (NPs) (SiO2-NPs) and graphene nanoplatelets (GNPs) as drilling-fluid additives in a single formulation to improve shale inhibition and long-term stability of water-based mud (WBM) against temperature effects. The design of the nanoparticle WBM (NP-WBM) followed a customized approach that selects the additives according to the characteristics of the reservoir. Characterization of Woodford shale was completed with X-ray diffraction (XRD), cation-exchange capacity (CEC), and scanning electron microscopy (SEM). The aqueous-stability test and ζ-potential measurements were used to assess the stability of the NPs. NP-WBM characterization included the analysis of the rheological properties measured with a rotational viscometer and the evaluation of the filtration trends at low-pressure/low-temperature (LP/LT) and high-pressure/high-temperature (HP/HT) conditions. In addition, dynamic aging was performed at temperatures up to 250°F for thermal-stability evaluation. Finally, chemical-interaction tests, such as cutting dispersion and bulk swelling, helped to analyze the effect of introducing NPs on the inhibition capabilities of the WBM. Conventional potassium chloride (KCl)/partially hydrolyzed polyacrylamide (PHPA) fluid was used for comparison purposes. The results of this investigation revealed that SiO2-NPs and GNPs acted synergistically with other additives to improve the filtration characteristics of the WBM, with only minor effects on the rheological properties. NPs exhibited high colloidal stability with ζ-potential values less than –30 mV, which warrants their dispersion within the WBM at an optimal concentration of 0.75 wt%. The high thermal conductivity of NPs played a key role in promoting a nearly flat trend in the cumulative filtrate for the NP-WBM at aged conditions, whereas KCl/PHPA suffered a dramatic increase. Also, NP-WBM preserved 43.97% of its initial cuttings-carrying capacity, whereas KCl/PHPA experienced a severe reduction of 95.24% at extreme conditions (250°F). Despite the high illite content of the Woodford shale, the NP-WBM exhibited superior inhibition properties that reduced cuttings erosion and swelling effect by 24.48 and 35.24%, respectively, compared with the KCl/PHPA fluid. Overall, this investigation supports the potential use of nanomaterials to enhance the inhibition capabilities and the long-term stability of WBM for unconventional shales, presenting an environmentally friendly alternative for harsher environments.
Dynamic Diverter Technology Efficiency in Acid Fracturing Applications
Authors: Sahu Qasim A. , Arias Rommel E. , Alali Eyad A.
Published: November 2019

Acid fracturing has been an integral part of reservoir development strategies for carbonate reservoirs as mechanical and chemical means of bypassing formation damage enhances productivity. Over the past few years, acid fracturing has significantly increased targeting more carbonate reservoirs. There is a need to fully address the heterogeneous petrophysical and geomechanical properties of target reservoirs, which adversely affects the stimulation efficiency and production if fluids are not properly designed. When injecting stimulation fluids to fracture the reservoir rock, the fluid is prone to traveling along the path of least resistance, and consequently less permeable zones and high stress reservoir rock receive treatments that could be further improved or enhanced. Accordingly, this drives the industry to continuously develop high performance chemical dynamic diverter systems. To ensure an effective and sufficient acid fracturing is achieved when treating long intervals of perforated clusters or openhole horizontal wells.

Recent advancements in diversion technology utilize various forms of degradable particles, where they serve to provide a temporary bridge, which is either inside the existing fracture or the perforation entrance. This allows for intentionally forming a low permeability pack, allowing the pressure inside the fracture to increase and redirect the next stage of fluid to the zone having a higher degree of stress that has not yet been covered by the fracture. The objective is to increase the fracture complexity, particularly in vertical wells where there is big variation in geomechanical properties of the formation.

To gain a deeper understanding of the performance of these diverters, a simulation study was conducted to analyze and compare the efficiency of particulate diverters used in two pilot wells. Fracture modelling and sensitivity analysis were also performed to understand the effect of diverters on the fracture geometry. To match the actual treatments, modelling validation and control were achieved through utilization of field data such as production logging, temperature surveys and pressure buildup tests.

The study determined that the success of the particulate diverter employed for the fracturing application is heavily dependent and governed by the geomechanical properties of the treated zone and the ability of the diverter to overcome the stress difference in the stimulated interval. Optimization of the diverter design and degradation profile is still needed to improve and achieve the best stimulation efficiency.
Absolute Adsorption of CH4 on Shale with the Simplified Local-Density Theory
Authors: Liu Yueliang , Hou Jian , Wang Chen
Published: November 2019

Using a thermogravimetric (TGA) method, the excess methane (CH4) adsorption of four organic shale samples is measured at temperatures of 303.15 to 383.15 K and pressures of 0 to 15.0 MPa. Simplified-local-density (SLD) theory is used to calculate the density distribution of CH4 in nanopores, which is then used to obtain the adsorbed CH4 density on four shale samples. Such density is applied to obtain the absolute CH4 adsorption by correcting the measured excess CH4 adsorption. SLD theory shows that the adsorbed CH4 density is strongly affected by temperature and pressure, as well as the pore size, which is in line with the previous findings from molecular simulations. SLD theory captures the density of the adsorbed phase of CH4 in the presence of CH4/pore-wall interactions. However, the SLD theory is more efficient than molecular simulation methods in determining the adsorbed CH4 density considering that only two parameters in the SLD model are adjusted to match the excess adsorption of CH4 on shale. It is observed that the corresponding absolute adsorption of CH4 is higher than the excess adsorption; this suggests that it is not reasonable to use the measured excess adsorption to estimate the storage of CH4 on shale. This study applies the SLD theory to investigate the adsorption behavior of CH4 in organic pores at different pressure/temperature conditions, and, more importantly, it yields a more-efficient approach (i.e., SLD theory) in determining the absolute adsorption than the sophisticated molecular simulations tools.
Effect of a tailored leaflet to promote diabetic retinopathy screening among young adults with type 2 diabetes: a randomised controlled trial
Authors: Lake Amelia Jane , Browne Jessica L , Rees Gwyneth , Speight Jane
Published: November 2019

Background young adults with type 2 diabetes (aged 18-39 years) are at risk of early onset and rapid progression of diabetic retinopathy, the leading cause of blindness and vision loss in working age adults. Early detection via retinal screening can prevent most vision loss, yet uptake for this priority population is consistently lower than the general diabetes population. We aimed to test the effect of a tailored, evidence-based brief health behaviour change intervention (leaflet) on self-reported uptake, and previously identified social cognitive determinants of retinal screening.Methods a pragmatic, two-arm randomised controlled trial was conducted from September 2014 to April 2015. Participants were stratified by prior screening uptake (Yes/No) and randomly allocated to intervention (leaflet) or ‘usual care’ control (no leaflet). Primary outcome was self-reported screening uptake four weeks post-intervention for ‘No’ participants who had not previously screened for diabetic retinopathy. Secondary outcome variables were changes in knowledge, attitudes, normative beliefs, intention and behavioural skills for all participants, irrespective of prior screening behaviour. To assess intervention effects on secondary outcome variables, we conducted independent samples t-tests (two-tailed) on pre-post change scores.Results 129 young adults (26% no prior retinal screen) completed baseline; 101 completed post-intervention. Power to determine effect on the primary outcome was curtailed by low recruitment of individuals with no prior retinal screen and loss to follow-up. Country of birth, language spoken at home, and relationship status were significantly associated with study attrition. Significant intervention effect was observed for one secondary outcome variable: knowledge of diabetic retinopathy ( p =.03) with moderate effect (partial eta squared η 2 =.05); no adverse effects were reported. Control group participants received the leaflet at study completion.Conclusions this study confirms that a well-designed eye health and retinal screening promotion leaflet can increase knowledge of diabetic retinopathy, an important screening predictor. The study highlights the challenges of conducting ‘real-world’ health behaviour change research with this priority population, providing insights for clinicians and researchers. Strategies to recruit, engage and retain hard-to-reach populations are discussed including nonconventional alternatives to randomised controlled trial designs. Trial registration: ACTRN12614001110673, UTN No.: U1111-1161-9803. Registered 20 October 2014 - retrospectively registered https://www.anzctr.org.au/Trial/Registration/TrialReview.aspx?id=367127.
Population status of Adansonia digitata L. and associated species in a different land use type of Quara district, northwest Ethiopia
Authors: Erku Melkamu Abere , Alemu Asmamaw , Eshete Abeje
Published: November 2019

Background Adansonia digitata is one of the most important Non-timber forest products and a key species that have ecological and socio-economic significance in the lowland area of Ethiopia. However, the population of the species is decreasing from time to time due to different natural and anthropogenic factors. The study important to generate information on the current existing population status of Adansonia digitata across three land use types and will provide a scientific recommendation on further management of a species.Methodology About six plots in each forest and agricultural land use type and five plots in homestead were selected randomly from the topography map. Populations of a species were determined using analysis of variance.Results The result showed that homestead and agricultural land use type had higher Adansonia digitata density than forest land use type but statically it was not significantly different. More Adansonia digitata populations were distributed in the middle diameter and height size classes. Conclusion: The study concludes that Adansonia digitata highly associated with Combretum-Terminalia, Ziziphus and Acacia tree species in the study area. This species is dominant and key ecological importance in the woodland vegetation however; Adansonia digitata has a very low importance value index in the study area, so it needs further management and conservation.
Proper hydration in contrast-induced nephropathy among patients with acute myocardial infarction and cardiac insufficiency
Authors: Sun Guoli , Liu Jin , Song Feier , He Yibo , Ying Ming , Chen Jiyan , Liu Yong
Published: November 2019

Backgrounds The recommended strategy to prevent contrast-induced nephropathy (CIN) among acute myocardial infarction (AMI) patients is adequate hydration. However, it is still controversial whether adequate hydration should be used to prevent CIN in AMI patients with Killip class>I.Methods In this prospective, observational registry study, 407 acute myocardial infarction (AMI) patients with Killip class>I undergoing percutaneous coronary intervention (PCI) were analyzed. The recommended hydration rate is haved before or after the procedure(0.5 mL/kg/h for Killip class >I). The endpoint was CIN(an absolute increase in serum creatinine of ≥ 0.5 mg/dL or a relative increase of ≥ 25% within 48-72 hours).Patients were divided into 2 groups by approximate median hydration volumn(HV)750ml. Multivariable logistic regression analysis was carried out to clarify the independent predictors of CIN and worsening heart failure(WHF).Results The total incidence of CIN was 24.6% in this study. There was a significant association between hydration volume and CIN in two hydration groups(HV >750 mL vs. HV=<750mL: 28.46% vs. 18.18%,P=0.020), the WHF(16.2% vs 5.19%, P=0.001). After adjusting for confounders, multivariate analysis showed that higher HV was significantly associated with CIN(adjusted odds ratio(OR)=1.829, 95% confidence interval (CI) (1.046, 3.197),) and WHF risk(adjusted OR= 2.585, 95% CI (1.104,6.055)), all P value<0.05.Conclusions For AMI patients with Killip class>I, relatively adequate hydration(HV>750ml)may be associated with a higher risk of CIN and WHF.
Transitional Care for Patients withCirrhosis: a Multidisciplinary Care Model for Prevention Complications Post-TIPS
Authors: Hou Weiwei , Xu Yin , Wan Qijiang , Fei Xiaoyan , Qian Gui-xiang , Liu Jiangwen , Jun Chen , Chen Wang , Wang Zhongmin , Yang Rumei
Published: November 2019

AIM
To evaluate the efficacy of transitional care interventions of multidisciplinary teams for patients with cirrhosis post-TIPS.
METHODS
68 patients undergone TIPS were randomly allocated to control or intervention group. Patients in control group received conventional care, patients in the intervention group received conventional care combined with transitional care. The compliance behavior, incidence of HE and shunt dysfunction, Child-Pugh scores and ammonia of two groups were compared at 1,3,6 and 12 month post-TIPS.
RESULTS
Repeated measures analysis of variance showed significant group effects from 1,3,6 and 12 month post-TIPS for compliance behavior scores of the two groups. Intervention group had significant higher compliance behavior scores than control group 1, 3 and 6 month post-TIPS respectively. The incidences of HE the intervention group were significantly lower than control group12 months after TIPS.The incidences of shunt dysfunction in the intervention group were significantly lower than control group 12 months after TIPS. The group effects ,time effects and group*time interaction showed no significant difference in Child-Pugh scores and blood ammonia between the two groups.
CONCLUSION
Post-TIPS transitional care interventions increase the accessibility of patients to scientifically informed nursing, significantly improve patients’ compliance behavior and health, decrease the incidence of HE and shunt dysfunction.
KEW WORDS Transjugular intrahepatic portosystemic shunt (TIPS); Transitional care; Compliance behaviors; Hepatic function.
Early discontinuation of empirical antibiotic treatment in neutropenic patients with acute myeloid leukaemia and high-risk myelodysplastic syndrome
Authors: Niessen Floor Annabel , Mourik Maaike S. M. van , Bruns Anke H. W. , Raijmakers Reinier A. P. , de Groot Mark C.H. , Bruggen Tjomme van der
Published: November 2019

Introduction: Current guidelines advocate empirical antibiotic treatment (EAT) in haematological patients with febrile neutropenia. However, the optimal duration of EAT is unknown. In 2011, we have implemented a protocol advocating more restrictive use of EAT in patients with febrile neutropenia. This study assesses the effect of this protocol on carbapenem use in high risk haematological patients and its safety.

Methods: A retrospective before-after study was performed comparing a cohort from 2007 to 2011 (period I, before restrictive EAT use) with a cohort from 2011-2014 (period II, restrictive EAT use). Neutropenic episodes related to chemotherapy or stem cell transplantation (SCT) in patients with acute myeloid leukaemia (AML) or high-risk myelodysplastic syndrome (MDS) were analysed. The primary outcome was the use of carbapenems as EAT during neutropenia, expressed as days on therapy (DOT). Also the use of other antibiotics was analysed. Safety measurements included 30-day mortality, ICU admittance within 30 days after start of EAT and blood cultures positive for microorganisms sensitive to a carbapenem.

Results: 362 neutropenic episodes with a median duration of 18 days were analysed, involving 201 patients. DOT with carbapenems decreased from a median of eight days (period I) to a median of six days (period II), a reduction of 25%. Additionally, vancomycin use decreased with 55%. No deaths were directly related to early discontinuation of EAT, also no notable difference in ICU-admission and positive blood cultures was detected.

Conclusion: Implementation of a protocol promoting restrictive use of EAT resulted in reduction of carbapemen use and appears to be safe in AML or high-risk MDS patients with febrile neutropenia during chemotherapy or SCT.