bluuebunny/crossref_metadata_2025 huggingface dataset:
Estudio de precipitaciones en la ciudad de Trelew, análisis estadístico y ecuación de lluvia
Authors: Chachero María Jesús
Published: March 2022

El presente trabajo tiene por objeto ordenar y sistematizar la información pluviométrica en el área de influencia de la ciudad de Trelew y actualizar las ecuaciones de lluvia para la serie de datos disponible a la fecha. Los estudios estadísticos de tormentas, que determinan las relaciones de Intensidad-Duración-Recurrencia (I–d–T), constituyen la base de cálculo para la determinación de la tormenta de diseño en un sinnúmero de problemas de la ingeniería hidráulica y ciencias afines. Por tratarse de variables dinámicas conviene un análisis continuo y ajuste permanente, principalmente en las variables más sensibles, como es la precipitación máxima, por lo que se buscaron nuevas relaciones funcionales que resultaron algo distintas a las hasta hoy existentes en términos de períodos de retornos asociados. La interpretación y uso, debe hacerse en el marco estricto de las hipótesis del método probabilístico, con sus limitaciones y restricciones. Las nuevas relaciones funcionales ajustadas son las que se recomiendan utilizar en la determinación del evento o los eventos de lluvia que servirán de base en el estudio técnico y diseño de obras. La información sistematizada intenta además lograr un mecanismo de difusión que contribuya al conocimiento de los posibles usuarios y pueda ser utilizada por los sectores interesados en el tema
Determinación de la rugosidad superficial y anchos de inundación en la planicie del río Salado (Santa Fe) para la crecida de 2003
Authors: Imhoff Matías , Trento Alfredo
Published: March 2022

Las planicies de inundación en ríos de llanura cumplen un papel fundamental en las crecidas, puesto que almacenan y conducen una parte importante del caudal, de lo cual se deriva la importancia de la correcta representación de la rugosidad superficial en las modelaciones hidrodinámicas. La zona de estudio corresponde al tramo del río Salado (Santa Fe, Argentina) comprendido entre la confluencia con el Arroyo Cululú y la ruta provincial N° 70. El objetivo fue determinar la rugosidad superficial de la planicie y los anchos inundados para la crecida extraordinaria de 2003 con el sistema computacional Hec-Ras. El coeficiente de rugosidad n de Manning se calculó con la ecuación de Cowan para llanura, haciendo hincapié en la determinación del factor que caracteriza la influencia de la vegetación en la rugosidad superficial (n4), puesto que este componente representa la principal diferencia con respecto a la fórmula para canales. La simulación, para condiciones no estacionarias, fue calibrada con cotas de niveles de agua medidas al momento del pico de la crecida, y con anchos de inundación obtenidos de una imagen satelital radar. De acuerdo a los resultados de la simulación, la planicie de inundación transportó más del 70 % del caudal pico. Los anchos calculados con la rugosidad espacial variable, se compararon con otras parametrizaciones, corroborándose apreciables diferencias. Estos resultados demostraron la relevancia de la definición de la rugosidad superficial, para estimar profundidades en planicie y distribución de caudales.
Introducción al análisis del flujo a través de bifurcaciones en canales con escurrimiento a superficie libre
Authors: Trivisonno Franco , Riccardi Gerardo , Stenta Hernán
Published: March 2022

Las estructuras hidráulicas de bifurcación, ampliamente utilizadas en escurrimientos a superficie libre, permiten dividir el flujo que arriba a un sitio en dos o más porciones. Este estudio comprende una revisión bibliográfica en la temática y la aplicación correspondiente al prediseño de una estructura de división de flujo: una bifurcación en el sistema hídrico Ludueña-Ibarlucea (Rosario, Argentina) cuyo objeto es derivar caudales desde los cursos superficiales hacia un sistema de conductos cerrados a construir, denominado Aliviador 3 Ramal Grandoli. Se llegó a describir el mecanismo hidráulico que permite la derivación de la mitad del caudal transportado por el Canal Ibarlucea a través de un canal de la mitad de su ancho y con una pendiente de fondo mínima, de manera de cumplir una limitación de número de Froude implícita en el modelo utilizado. Asimismo, se calcularon los coeficientes de pérdida de energía asociados. A través de la metodología presentada se constata que es posible determinar un conjunto de características geométricas de utilidad para el diseño preliminar, dejándose en claro que para el diseño completo de tal estructura hidráulica resulta necesario recurrir al estudio experimental mediante modelación física a fin de obtener una descripción más precisa del flujo.
Resolución numérica de las ecuaciones de Navier-Stokes con OpenFOAM
Authors: Ceretani Andrea , Sanziel María Cristina , Portapila Margarita
Published: March 2022

En este trabajo se considera un problema asociado a las ecuaciones de Navier-Stokes y de continuidad correspondiente al flujo en un canal con escalón bidimensional para Re = 800, se lo resuelve numéricamente mediante el Método de Volúmenes Finitos a través OpenFOAM® y se analiza la posibilidad de obtener una solución numérica estacionaria. Complementariamente se define un concepto de cuasi-estacionariedad para monitorear la solución calculada. Se comparan los resultados correspondientes al campo de velocidad, conresultados numéricos publicados para el caso estacionario y se analizan las ubicaciones de las condiciones de flujo entrante y saliente.
Propiedades físicas y conductividad hidráulica efectiva en el transcurso de una rotación trigo/soja
Authors: Castiglioni Mario
Published: March 2022

Las prácticas de cultivo generan cambios en las propiedades físicas de los suelos, no siendo consideradas normalmente dichas transformaciones en los modelos de escurrimiento y erosión. Los objetivos del presente trabajo son: 1) Determinar los cambios temporales de distintas propiedades físicas edáficas superficiales, en un Argiudol vértico bajo siembra directa, en tres momentos correspondientes a una rotación trigo/soja. 2) Estimar la succión mátrica en el frente de humedecimiento (Ψ) de dos maneras distintas y calibrar la conductividad hidráulica efectiva del modelo de infiltración de Green-Ampt (Ke) por dos procedimientos a partir de ensayos de infiltración realizados a campo, determinando los métodos más apropiados para estimar dichos parámetros. 3) Analizar mediante el uso de un modelo de escurrimiento, si los cambios de escala generan modificaciones en la Ke calibrada a partir de mediciones de infiltración realizadas en pequeñas parcelas. Se determinaron distintas propiedades físicas edáficas y se realizaron ensayos de simulación de lluvia en un lote perteneciente a la Facultad de Agronomía de la Universidad Nacional de Rosario (Pcia. de Sta. Fe), en tres momentos de una rotación trigo/soja. Se calibró la Ke por dos procedimientos, como también se estimó la Ψ de dos maneras. No se pudieron determinar diferencias estadísticas significativas en las distintas propiedades analizadas entre las tres fechas del ensayo. La estimación de Ψ resultó más eficiente a partir de la ecuación que considera solamente la textura del suelo y su porosidad. El modelo de infiltración de Green-Ampt fue más apto para calibrar Ke, respecto al desarrollado para calcular el tiempo de encharcamiento. Las propiedades derivadas del proceso de infiltración presentaron mayor variabilidad espacial que temporal. La Ke calibrada a escala de parche, resultó ser entre un 66 y un 100 % mayor respecto a la determinada en una superficie significativamente mayor.
Transporte y destino de residuos sólidos flotantes en la desembocadura del Río Matanza-Riachuelo
Authors: Re Mariano , García Pablo , Lecertua Emilio , Menéndez Ángel
Published: March 2022

La presencia de residuos sólidos flotantes (RSF) en ríos y arroyos urbanos impacta sobre los distintos usos, capacidades hidráulicas, calidad del agua y condiciones estéticas. En la Cuenca Matanza-Riachuelo (CMR), el transporte y destino de RSF puede perjudicar el normal funcionamiento de obras de infraestructura y elementos de observación y control ubicados en cercanías de la desembocadura en el Río de la Plata. En esta zona se encuentra implementado un sistema de limpieza de espejo de agua basado en la ubicación estratégica de barreras de retención. Ante la ocurrencia de precipitaciones significativas, estas barreras pueden colapsar permitiendo movilizar clusters de RSF cuyo destino puede resultar perjudicial. La hidrodinámica en esta zona está asociada a las condiciones hidrológicas de la CMR y a la dinámica del Río de la Plata. Para estudiarla en detalle se utilizó la combinación de dos modelos numéricos: 1) un modelo hidrológico-hidráulico de la CMR; 2) un modelo hidrodinámico del Río de la Plata Interior. Se presentan en este trabajo los resultados referidos a la evaluación de tiempos de concentración de la cuenca y los caminos de los RSF siguiendo partículas a partir de ensayos de rotura instantánea de barreras de retención.
The Ease of Investing in Indonesia's Capital Market Based on Improved Financial Literacy, Investment Community and Capital Market School
Authors: Rozi Moh. Fathur , Susyanti Jeni , Saraswati Ety
Published: March 2022

Indonesia is predicted to have the 4th largest GDP in the world by 2050. One of the major contributors to GDP is investment. Based on KSEI data (2020) the number of investors in Indonesia is still 3.27 million investors or 1.73% of the total productive age population. This proves that Indonesia still needs encouragement to become the country with the 4th largest GDP in the world. One form of this encouragement is to increase people's financial literacy. Data from OJK (2019) states that the financial literacy index of the Indonesian people rose from 29.7% in 2016 to 38.03% in 2019. The investment community is one of the drivers and the ISP community is one of the capital market education activists. The importance of improving financial literacy, the investment community and capital market schools for the ease of investing is an important point to help make Indonesia a country with the 4th largest GDP in the world. The purpose of this study was to determine whether there is an influence between financial literacy, investment community and capital market schools on the ease of investing. The method that used is quantitative with a survey approach. The results show that there is an influence between financial literacy, the investment community and the capital market on the ease of investing, which means that if there is an increase in financial literacy, the investment community and capital market schools, there will also be an increase in the ease of investing.
Student Entrepreneurial Intention Model in Medan City
Authors: E.S M Rikwan , Sari Dewi Comala , Sitepu Edy Sahputra
Published: March 2022

This study aims to analyze how the influence of the variables of intellectual intelligence, emotional intelligence, and spiritual intelligence on students' entrepreneurial intentions, using the intervening variables of student creativity and learning achievement. The research was conducted at polytechnic higher education institutions (public and private) in Medan City. The number of research samples was 400 people, and the data were analyzed using a structural equation model with Amos software. For the direct effect of exogenous variables, it was found that students' intellectual intelligence and creativity had a statistically significant impact. In contrast, the variables of emotional intelligence, spiritual intelligence, and learning achievement were not statistically significant. The indirect impact variables used to estimate entrepreneurial intentions are statistically significant, except for the emotional intelligence variable. Furthermore, as an intervening variable, the learning achievement variable provides a partial mediation effect in mediating the influence of the intellectual intelligence variable on entrepreneurial intentions. The learning achievement variable also provides a partial mediation effect in mediating the impact of the spiritual intelligence variable on entrepreneurial intentions. In contrast, the learning achievement variable provides no mediation effect in mediating the influence of the emotional intelligence variable on entrepreneurial intentions.
MUZAKKI TRUST ANALYSIS ABOUT AMIL ZAKAT
Authors: Fithrie Souvya , Waldelmi Idel , Aquino Afvan
Published: March 2022

This study discusses Muzakki Trust Analysis Against Amil Zakat in University of Lancang Kuning. This research uses survey method on muzakki that exist in Unilak environment, using questioner, interview and analyzed with descriptive technique, Based on field data proves that the level of trust muzakki to amil zakat which is pointed by the yellow University of lancang kuning with an average of 3.6. Followed by several high item items among others muzaki believe in amil appointed in managing upz with score 3.7 and also muzakkii assess officer obedient in running religion. And the cause of zakat muzakki UPZ Unilak institutions that factor officers, services, distribution of zakat funds and Lack of level of socialization of the zakat management unit to muzakki.
The Accountability of Regional Financial Management A mid Covid-19 Pandemics (Study at Riau Province Government)
Authors: Putri Annie Mustika , Puspita Sari Dian Puji
Published: March 2022

This research aims to identify the factors that influence the accountability of regional financial management amid pandemics. Specifically, this research is focused on the influence of internal control systems, and financial report accessibility towards the accountability of regional financial management amid the pandemics of Covid-19. 87 government’s employees of Riau Province are involved as samples, who are directly elaborated in regional financial report management, namely Head of Department/Agency, Head of Sub-Division in Financial, Head of Sub-Division in Program, Planning, and Report. Primary data, in the form of research respondent’s perceptions (subject) through survey, are required for research data. Data collection employs a direct survey with a questionnaire as the selected instrument. The quantitative method is utilized as the research method. For data analysis, Statistical Product and Service Solutions (SPSS) Version 25 is used. Based on the result of the research, it is revealed that the internal control system and financial reports accessibility, partially have a positive and significant influence on the accountability of regional financial management.
The Influence of Product Completeness on Consumer Purchase Decisions at Supermarkets 88 Bengkalis (Case Study on Bengkalis City Community)
Authors: Nurzana Neli , Bustami Bustami
Published: March 2022

This study aims to determine the effect of product completeness on purchasing decisions and to determine the influence of product completeness on consumer purchasing decisions at 88 Bengkalis supermarkets. The object in this study is the 88 Bengkalis self-service consumers consisting of 42 men and 58 women. The type of research used in this research is associative research by distributing questionnaires to 100 respondents using nonprobability sampling with snowball sampling method. The test results show that product completeness has a positive and significant effect on purchasing decisions, meaning that the product completeness variable is one of the variables that can be used to measure purchasing decisions.The determinant coefficient (KD) is 0.578 or equal to 57.8%, which means that product completeness affects purchasing decisions. amounted to 57.8%, the rest is influenced by other variables not examined in this study. The result of the T test shows that the t value of 11, 582 is greater than the t-table of 1.984, which means that completeness of the product has a positive and significant effect on Consumer purchasing decisions.
Waterfront Ecologies: Redefining the Urban Edge of the San Francisco Bay
Authors:   Temple University, Kaprielian Gabriel , Sandoval Carlos ,   Massachusetts Institute of Technology
Published: March 2022

Waterfront Ecologies re-envisions the edge condition around the San Francisco Bay, creating a new set of relationships between urban life and ecology. In 24 sites along the contested shoreline of the Bay Area, our redevelopment strategy illustrates a new methodology to design holistically as we face challenges posed by climate change and a growing population.
Star Trek: between scientific technology and reality, a leadership model in healthcare management
Authors: Pirro Rossella
Published: March 2022

Few tv series or movies can be considered as a source of inspiration for everyday life, both in the workplace and not. Star Trek is the most striking example of this since it touches the deepest chords of the human soul by addressing philosophical, spiritual, political and strategic issues. At the command of the Enterprise, the spaceship, we meet Kirk or Picard, to name a few of the most famous commanders of Star Trek, at the "command" of radiology we will meet the Coordinator, a leading figure for his team of technicians. Far from space ships or aliens, the TSRM Coordinator must interface with his technical staff, know how to communicate with them and with other health workers and make important decisions often in "red alert" conditions as unfortunately still happens during the COVID-19. The world is experiencing a time of crisis as the global COVID-19 pandemic has affected the way we live, work and interact with each other on a global scale. It might be science fiction, but Star Trek can help us practice our basic leadership skills in preparation for real crises. In fact, the Star Trek captains provide examples of the potential for communication, patience and dedication in the service of leadership. With this job I tried to describe how team-working, the importance of communication and the figure of the leader in Star Trek can be an inspiration in the Management for the health professions and how the technology of this famous science fiction serie can predict and anticipate the future of our technical profession.
concepción irreductible de la persona en el planteamiento filosófico-antropológico de Pedro Laín
Authors: García Echeverri Jonny Alexander , Duque Naranjo Nicolás , Lopera Valdés Olga
Published: March 2022

Este artículo presenta un estudio sobre la obra del médico Pedro Laín Entralgo, quien es el creador de la Antropología médica, para visibilizar el planteamiento intelectual lainiano a partir de una antropología integral que ofrezca una visión científica y filosófica del hombre. En otras palabras, se busca fundamentar la concepción irreductible de la persona, en términos de la intersubjetividad, de las relaciones que el ser humano establece en tanto está abierto a otros hombres que son sus “prójimos”.
Checkered Regression
Authors: Achab Mastane
Published: March 2022

Definition of the checkered regression model.
Recent Tensions between Iran and Azerbaijan: Manifestations, Causes and Developments
Authors: Hanjing Yue
Published: March 2022

The relationship between Iran and Azerbaijan has been tense since mid-August 2021. There are two main reasons for this: first, the inherent contradictions between the two countries are sometimes eased, sometimes intensified, and interact with each other, so that the bilateral relations have always been in an unstable state of ups and downs, which has great inertia; Second, after the second Nagorno Karabakh conflict, great changes have taken place in the geopolitical pattern of the Caucasus, resulting in new contradictions between the two countries and intensifying the original contradictions. However, neither country is willing to continue to escalate tensions, which have shown several signs of easing since mid-October. In the long run, the bilateral relations will still maintain the characteristics of ups and downs, but Azerbaijan will be the responsible party for the tension between the two countries in more cases than before the second Nagorno Karabakh conflict.
Craig's Quest of the Historical Adam
Authors: Gouw Arvin
Published: March 2022

William Lane Craig has written an impressive apologetic book on the topic of the historical Adam, which like all his previous books, is comprehensive and thought-provoking. The biblical, theological, and scientific data presented in this book are enormous. The conclusions of his arguments can be easily understood through his own summaries at the end of each chapter, but to really deconstruct his arguments and critically evaluate the presented scientific data would be beyond the scope of a review article and my scientific expertise. There have been several book reviews written by other scholars on Craig’s book, but Craig has been disappointed by the fact that some of them have completely missed his point (and appear to have perhaps not read his book!) This is quite plausible given the density of information and syllogistic argumentation that are weaved in this book. His responses to these various flawed book reviews can be easily found online from a simple Google search. Before presenting my critiques, I feel it necessary to provide a brief overview of the book so that readers and Craig himself, if he reads this, can easily point out where I have misunderstood him, should that happen.
Safety and Health Management Implementation
Authors: Abdul Jumali Muhamad , Utomo Yitno , Rusdiyantoro
Published: March 2022

The development of industry by empowering high technology is accompanied by an increase in players and technology users in the industrial era and globalization. So it is necessary to pay attention to work safety as an effort to improve human resources in the field of Occupational Safety and Health Management System. The theme of Occupational Safety and Health Management System is very interesting to study and continue to develop. So the purpose of this research is to know the implementation of Occupational Safety and Health Management System in accordance with the Standard Operating Procedure and to know the use of Personal Protective Equipment for employees in the maintenance department of a shoe-making company according to the rules and rules of Occupational Safety and Health Management System.

The research method used is comparative quantitative research (comparing quantitatively). The research subjects were employees in the maintenance department of a shoe-making company which collected 60 people.

The results of this study indicate that the Post-Test value > from the Pre-Test results. Therefore, the implementation of the Health and Safety Management System in the maintenance department has been implemented or in accordance with standart operation procedure and policies of a shoe-making company.
Enfermagem intensiva na pandemia por coronavírus segundo teoria da incerteza na doença: relato de experiência
Authors: Viviane Pereira Cícera , Sobral Gondim Érica , Bezerra Gomes Emiliana , Amaral Viana Maria Corina , De Carvalho Félix Nuno Damácio
Published: March 2022

Resumo | Objetivo: relatar a vivência de enfermeira intensivista na pandemia por COVID-19 sob ótica da Teoria da Incerteza na Doença, enfatizando suas estratégias de adaptação. Método: Desenvolvido de setembro a dezembro de 2021, a partir da vivência de uma enfermeira intensivista, com 13 anos de atuação em unidades de terapia intensiva, sobre a sua experiência na assistência prestada em uma unidade de terapia intensiva no interior do estado do Ceará aos pacientes diagnosticados com COVID-19, sob ótica da Teoria da Incerteza na Doença, utilizando desta quatro conceitos e dois pressupostos. Resultado: O estresse e desesperança vivenciados levaram à adaptação pelas estratégias de controle do perigo, resultando na apreciação de oportunidade de aprendizado concomitantemente à familiaridade do evento e redes de apoio, desenvolvendo nova perspectiva de vida. Conclusão: As estratégias de coping utilizadas pela enfermeira podem fornecer orientação para um enfrentamento eficaz dos profissionais de saúde ao lidar com o desconhecido.
Reanimação cardiopulmonar como proposta de educação em saúde para crianças e adolescentes: revisão integrativa
Authors: Bárbara Maruxo Harriet , Limeira De Oliveira Rafaela , Conceição Sousa José Murillo , Pinheiro Braga Spósito Natalia , Pereira Da Silva Grilo Adriana , Vituri Marques Marceli
Published: March 2022

Objetivo: identificar as capacitações em reanimação cardiopulmonar que têm sido realizadas para crianças e adolescentes em instituições de ensino. Método: revisão integrativa da literatura realizada de março a julho de 2021, com artigos publicados nas bases de dados MEDLINE, LILACS, IBECS e BDENF entre os anos de 2011 a 2021. Resultados: foram encontrados 29 artigos, os quais, resultaram em 10 artigos, divididos em três categorias: Treinamento em Reanimação Cardiopulmonar, Dificuldades na implementação do treinamento e Importância do Treinamento em Reanimação Cardiopulmonar. Conclusão: a capacitação em Reanimação Cardiopulmonar é um mecanismo que objetiva aumentar o atendimento a Parada Cardiorrespiratória pelo público leigo, visando a diminuição de danos ao paciente. O treinamento de crianças e adolescentes possibilita a propagação do conhecimento a comunidade em geral. Evidencia-se, porém, necessidade de propagação desta prática as instituições de ensino.
Metacognitive argument-driven ınquiry in teaching antimicrobial resistance: Effects on students’ conceptual understanding and argumentation skills
Authors: Antonio Ronilo P. , Prudente Maricar S.
Published: March 2022

Developing and communicating evidence-based explanations are regarded asessential skills in 21st-centurylearning. These skills are central to the process of scientific argumentation. Hence, teachers must adhere toa student-centered pedagogy that cultivates students’ understanding and argumentation skills. Thisstudy investigated the effects of the Metacognitive Argument-Driven Inquiry (MADI) approach in promoting students’ conceptual understanding of AntimicrobialResistance and scientific argumentation skills. The study employeda mixed-method approach, which involved both quantitative and qualitative data. The participants were third-year Biological Science Education students (n=23) in a public university in Central Luzon, the Philippines. Quantitative data were obtained from the validated 30-item conceptual understanding test and six-point teacher-made written argumentation skills test, administered before and after students’ four-week exposure to the MADI approach. Qualitative data from video-recorded sessions and focus group discussions were used to substantiate the quantitative findings. Descriptive and inferential statistics were utilized to determine if there were significant improvements at the end of the study.Results showed that students’ conceptual understanding and argumentation skills significantly improved after exposure to the MADI approach with large effect sizes. Students’ development of argumentation skills was evident during the implementation of the study, as seen in their increasing mean scores in each activity. Moreover, students signified the efficacy of the MADI approach in facilitating substantial improvements in their conceptual understanding and argumentation skills. Thus, it is suggested for Biology teachers to integrate the MADI approach in delivering their lessons and designing inquiry-based activities to support students’ development of understanding and argumentation skills.
A Cross sectional survey about students’ agreement rates on nonscientific ıdeas concerning the concept of magnet
Authors: Ürek Handan , Çoramık Mustafa
Published: March 2022

The present study aims to find out the agreement rates of students on non-scientific ideas concerning the concept of magnet with a cross sectional survey. A total of 436 students studying in the final years of elementary (n=113), middle (n=110), high school (n=105) and university (n=108) participated in the study. Data were collected with the help of a concept test. Quantitative methods were utilized in data analyses. According to the results, students were found to agree with non-scientific ideas in different percentages in each educational level. Most of those non-scientific ideas were prevalent misconceptions in the literature. The least percentages of agreements were detected among university students. Besides, five different mental models were presented to explain the cognitive structures of the students related to their agreements. Several recommendations were provided to consider in future studies at the end of the study.
A Comparative Study of Self-Regulation Levels and Academic Performance among STEM and Non-STEM University Students Using Multivariate Analysis of Variance
Authors: Bene Konabe , Lapina Angelina , Birida Asamenew , Ekore John O. , Adan Sofia
Published: March 2022

Based on the assumption that STEM students may exhibit higher self-regulation levels than non-STEM students, this study compared the levels of self-regulation variable across four fields of study. By employing multivariate analysis, it was found that differences in self-regulation levels among STEM and non-STEM students predict students’ GPA. STEM students reported higher self-regulation levels than non-STEM students. However, among the STEM fields, only engineering students displayed statistically significant difference in self-regulation levels when compared to non-STEM fields of study. Computer science students displayed a significantly higher GPA than law and business administration students, with engineering students displaying the second highest and statistically non-significant GPA. A regression analysis revealed that students’ self-regulation levels significantly predicted students’ GPA. The findings add value to the psychological concept as an important element in the context of learning in higher education. It was concluded that self-regulation remains an essential skill that enhances students’ effectiveness and need to be emphasized in the orientation for life in College.
Investigating the effect of the use of web 2.0 tools in 7th grade on students’ academic achievements and their self-directed learning with technology levels
Authors: Buluş Kırıkkaya ESMA , Yıldırım İrem
Published: March 2022

This study aims to investigate the effect of course activities carried out using web 2.0 tools in the “Interaction of Light with Matter”unit in the Science Course on the academic achievements and self-directed learning levels of 7th-grade students. For this purpose, the model of the research was determined as a pretest-posttest control group quasi-experimental design. As the data collection tools, the Academic Achievement Test for the Interaction of Light with Matter developed by the researcher and the SelfDirected Learning with Technology Scale for Young Students were used. According to the findings obtained from the research, it was determined that the lesson activities prepared using web 2.0 tools positively affected the academic achievement of the students in the experimental group and their self-learning levels with technology. It can be said that the significant difference between the academic achievement posttest scores of the experimental and control groups is due to the higher effect level of applications of the web 2.0 activities in the experimental group on achievement. It was determined that gender did not have a significant effect on the academic achievement and self-learning levels of the students in each group.
Concurrencia en la Licitación de Proyectos, 2018.
Authors: Castro Coria Eva Grissel , Gómez Monge Rodrigo
Published: March 2022

El objeto de investigación es analizar la concurrencia en la licitación pública del Programa  de Estrategia de Impulso a los Proyectos APP, bloque II, para ello, como metodología se utiliza la minería de datos con la intención de obtener datos públicos, identificar patrones y dar respuesta a nuestra pregunta de investigación: ¿Cuál es la concurrencia en la licitación pública del Programa de Estrategia de Impulso a los Proyectos APP, Bloque II?, con ese fin, se analizan los datos, se presentan los resultados, se resaltan los hallazgos y como conclusión se propone implementar una etapa previa denominada: precalificación, de naturaleza obligatoria, para asegurar la participación de un mayor número de ofertas, verificar la capacidad de los posibles licitantes, reunir propuestas completas para la evaluación económica, y considerar la negociación, para evaluar las propuestas de los licitantes.
Comparison and selection strategy of compensating topologies in two coil resonant wireless power transfer system
Authors:   Department of Electrical Engineering, Yildiz Technical University, Istanbul, 34220, Turkey., Agcal Ali , Ozkilic Selin Ozcira ,   Department of Electrical Engineering, Yildiz Technical University, Istanbul, 34220, Turkey., Toraman Kemalettin ,   Department of Electrical Engineering, Yildiz Technical University, Istanbul, 34220, Turkey.
Published: March 2022

In this study comparisons of different compensation topologies are investigated for two coil resonant wireless power transfer systems. Compensation circuits are examined individually according to system parameters such as efficiency, equivalent impedance, frequency, load resistance, and phase angle. This paper aims to compares the system variables in order to address the constraints in the system applicability regarding the compensation topology selection in Wireless Power Transfer (WPT) systems. Topology selection schemes related to circuit parameters are given. The main motivation of this study is that it presents a suitable topology selection scheme and flow diagram according to applications with various voltages, currents, power and loads. Simulations performed for four main topologies under various load conditions concludes that choosing the proper compensation topology for appropriate load is essential. Simulation studies are carried out with the Simulink software. The results obtained from here are validated with both Matlab calculation codes and C # calculation codes. The analyses according to the frequency in various load conditions have shown that variation of efficiency depends on the compensation topology of the receiver side. Moreover, in this study, it has been revealed that the topology of the transmitter side only affects the equivalent impedance together with the amount of power drawn from the input hence it has no effect on the efficiency and load characteristics. Consequently in the case of working with low load resistance such as an electric vehicle or mobile phone charging, topologies with series compensation on the receiver side can be preferred. Correlatively, topologies with parallel compensation on the receiver side can be evaluated as suitable for high load resistance, low current, and low power operations such as biomedical appliance charging.
Estimation of crack growth on rails under the combined influence of thermo-mechanical loading due to the sliding of wheel
Authors:   Mechanical Engineering Department, Delhi Technological University, Delhi, 110042, India., Bansal Aakash D , Agrawal Atul Kumar ,   Mechanical Engineering Department, Delhi Technological University, Delhi, 110042, India., Rastogi Vikas ,   Mechanical Engineering Department, Delhi Technological University, Delhi, 110042, India.
Published: March 2022

Development and growth of surface and subsurface cracks on rail profile is one of the major reasons for deterioration of rails near the halting zones. Rail tracks are subjected to combination of thermal loads during the sliding motion of the wheel while braking and structural load due to the weight of the vehicle. In this paper, an FEA model is been developed to study and analyze the effect of coupled thermo-mechanical load during braking on contact stress and contact area at the rail-wheel interface. Both elastic and elasto-plastic FEA models are used and compared with analytical Hertzian approach to accurately predict rail-wheel contact parameters. A synthetic loading spectrum is proposed to simulate the combination of thermal and thermo-mechanical loading cycles on the rail during braking of vehicle. The loading cycle is used to predict the growth of previously present flaws using Modified Paris Law and Generalized Frost-Dugdale approach. It has been found that elasto-plastic FEA is inclined to predict lesser contact stresses than the elastic FEA or Hertzian model. Furthermore, shape of the contact patch for elasto-plastic FEA is observed to be unsymmetrical in the rolling direction unlike the elliptical contact area in elastic FEA approach. Macro scale initial cracks having length more than 2 mm are also realized to grow faster than their smaller counterparts under the combined effect of thermal and mechanical loads.
The Development of Concentration of Population in Districts of the Central, Bohemian Region from 1921 to 1980
Authors: Blažek Jiří
Published: March 2022

The paper treats of the development of the concentration of population in zones accessible by public transport means. It shows the basic trends in the changes of population migration in 1921, 1950 and 1980.
Analysis of the Student Affairs Services Assessment of the NEUST College of Information and Communications Technology Students
Authors: Luciano Ruth G , T Bantug Emilsa , Santos Ruth Ann G
Published: March 2022

This study aimed to analyze the student assessments of the College of Information and Communications Technology students on the student affairs services offered by the Nueva Ecija University of Science and Technology during the academic year 2019-2020. The study sought to identify the areas that the students deemed satisfactory and the services that needed attention and improvement. The researchers utilized the descriptive research method to describe the respondents' profile and their assessment of the different student affairs services offered by the University. Convenience and quota sampling techniques were employed in choosing the respondents while questionnaires were distributed as the main data gathering tool. The data gathered were then evaluated using weighted average. The findings showed that the majority of the student population of the College of Information and Communications Technology are males, and are between 19-21 years old. Moreover, the students are very much satisfied with the student affairs services offered by the University as reflected by their ratings, wherein the Health Services were rated Excellent while the other nine service categories were rated Very Good. The comprehensive results of the study were forwarded to the respective office to be utilized as a basis for shaping up the action plan to further improve and tailor-fit the student affairs services based on the profile and assessment of the students.
Post-Concussion Syndrome Latent Onset Related to Intracranial Lesion on Head Injury Patient in Dr. M. Djamil General Hospital Padang
Authors: Meyadsa Pela , Saiful Saanin  , Hesty Lidya Ningsih
Published: March 2022

Background. Post-concussion syndrome is associated with damaged axons in patients with a mild head injury but little is known about their consequences for brain tissue. This study aims to examine the relationship between latent onset post-concussion and intracranial lesions in head injury patients at Dr. M. Djamil General Hospital Padang.

Methods. The research design is an analytical observational study with a cross-sectional approach. A total of 25 patients with head injuries participated in this study with inclusion criteria being hospitalized patients alive without physical and mental disabilities and patients diagnosed with latent onset post-concussion syndrome (PCS) without any additional diagnoses for patients with a history of trauma.

Results. The average age of the respondents in this study was 34.08 ± 17.45 years and more than half of the respondents were male, namely 18 (72%) respondents. half of respondents with persistent PCS symptoms > 6 months experienced EDH, as many as 5 (55.6%) respondents, ICH 2 (66.7%) respondents, and cerebral contusion 6 (60%) respondents. The results of statistical tests showed that there was no relationship between latent onset PCS and lesion appearance (p>0.05). The results of statistical tests showed that there was no relationship between latent onset PCS and the degree of head injury (p>0.05).

Conclusion. There is no significant relationship between post-concussion syndrome (PCS) latent onset with a degree of head injury and lesion description in head injury patients at Dr. M. Djamil General Hospital Padang.
Pengaruh Media Pembelajaran Berbasis Website (Wordwall) Terhadap Hasil Belajar Peserta Didik Pada Mata Pelajaran Fiqih Kelas VII Di Sekolah Menengah Pertama Muhammadiyah 07 Paciran
Authors: Mohammad Fikriansyah Idzi’ Layyinnati
Published: March 2022

This study uses the application of the classroom action research model (CAR) with the aim of knowing learning outcomes in fiqh class VII subjects through wordwall game media because after using wordwall game media students obtain complete learning outcomes at SMP Muhammadiyah 07 Blimbing, Paciran for the 2020/2021 academic year. . The population in this study were all seventh grade students at SMP Muhammadiyah 07 Blimbing, Paciran for the 2020/2021 academic year, totaling 50 students. In this study, the data collection technique used was the observation method.

From the results of data processing questions before using the application of web-based game learning media (Wordwall) and after using the application of web-based game learning media (Wordwall) or commonly referred to as pre-test and post-test, which were tested with the equation formula Product Moment Correlation with significance level of 5% and 95% confidence level and 1% significance level and 99% confidence level, the result of rcount is 0.955. Meanwhile, in the rtable with 50 respondents, it is known that the rtable prices are 0.284 and 0.368. After being compared with rcount, it turns out that rcount is greater than rtable (0.284 < 0.955> 0.478), meaning that Ho is rejected and Ha is accepted. Furthermore, in the interpretation of the assessment, the correlation coefficient found is 0.955, which is between 0.80-1,000, so it is included in the very strong category.
Studi Problematika Pelaksanaan Pengajaran Bahasa Arab Dan Usaha Pemecahannya Di Madrasah Tsanawiyah Muhammadiyah 03 Sedayulawas Brondong Lamongan
Authors: Pemecahan Lia Atiyah Rohmah Bahrus Surus
Published: March 2022

This thesis aims to find out what problems are faced in teaching Arabic at Madrasah Tsanawiyah Muhammadiyah 03 Sedayulawas Brondong Lamongan, as well as to find out the efforts made in overcoming these problematics.

The results obtained from this study are that there are probles in the implementation of teaching Arabic, naely: The Problem of students is that when receiving teaching 58% "a lot" are difficult to understand. From the factor of educators (teachers) only 2% means "less" is a problem. From the objective factor, it is also less of a problem in the implementation of teaching Arabic because only 11% stated that they did not clearly understand the purpose of learning Arabic. Problems with educational tools, one of which is the method used by teachers in teaching Arabic, is "enough" (25.5%) to be a problem. In addition, the teaching aids used by the teacher are "a lot" (54.5%) which is a problem in teaching Arabic. Meanwhile, environmental factors (family) can be said to be "enough" to be a problem (40%) in teaching Arabic because they are very lacking in paying attention to/motivating their children to learn Arabic lessons.

The efforts made in overcoming these problems are the first, the efforts of the students, namely by reading Arabic books, and taking additional lessons outside of school hours. Second, the efforts of the Arabic language teacher, namely by increasing the hours of Arabic lessons outside of school hours, the teacher is trying to find the right method to be taught, while those related to teaching aids are the absence of complete teaching aids (still in the stage of being worked on), teachers try to maximize the use of existing media and increase teacher creativity, which is related to evaluation, teachers try to continuously conduct evaluations. Third, the efforts of the school, namely seeking the equipment needed gradually for the further development of Arabic language teaching, as well as holding meetings with the parents of students and providing understanding to the guardians of students to motivate and support their children in learning Arabic.
Dinamika Survival Petani dan Tantangan De-agrarianisasi
Authors: Meka Christine E. , Nahak Hildigardis M.I.
Published: March 2022

In the midst of agricultural infrastructure development projects that are massively promoted by the state, the portrait of farmers often stagnates, even declines in local economic networks. The aim of this research is to present the dynamics of the relationship between farmers and land in West Timor, East Nusa Tenggara. The method of this research is descriptive-qualitative through indepth interview and observation. By using an agrarian political economy perspective, this paper finds several things, i.e 1) the position of farmers is not completely dependent on agriculture. Their main occupation as farmers does not make them independent farmers in the agricultural sector. 2) Farmers carry out other activities, especially animal husbandry. This business actually generates income that is much greater than agricultural production in order to help them survive. 3) The disposition of smallholders seems very vulnerable to systemic impoverishment, meanwhile, farmers who own rice fields can still get capital accumulation from agricultural businesses. In the end, the struggle of the farmers in Timor was carried out in order to survive in the midst of economic difficulties due to the free market which then created the challenge of de-agrarianization.
Perancangan Panyacah Awig Rejang Pala dalam Penguatan Ekosistem Tari Rejang Pala
Authors: Arya Satyani Ida Ayu Wayan , Adi Gunarta I Wayan
Published: March 2022

The Karangasem district has a wealth of rejang rituals spreading throughout several of its sub-districts and handed down through the ages to these days. The community’s constancy in preserving the rejang tradition is a true reflection of the power of written and unwritten set of customary rules (awig-awig). The Rejang Pala from the traditional village of Nongan in the sub-district of Rendang, in the district of Karangasem disappeared in 1917 following the terrifying earthquake that hit Bali on that year. It is therefore imperative that its existence in the village written awig-awig should be restored.  The aim of this is to strengthen the dance ecosystem after a reconstructed choreography was successfully made in 2019. Efforts to include the rejang as part of the awig-awig should be preceded by planning the design of the payacah awig, that is, an elaboration of article after article of the awig-awig by means of a research applying a qualitative methodology. Observation should be carried out in several ancient villages where the tradition of rejang has been handed down, complemented with interviews, literature studies and documentation. The data analysis and the compilation of the report should be descriptive. The outcome of the research should include the following elements of the Rejang Pala’s panyacah awig, formulated through: 1) a self-critic of the reconstruction process up to the launching of the dance (makebah); 2) an inquiry into whatever rules pertaining to the planning and design of the Rejang Pala’s panyacah awig in line with the characteristics of the local villages and 3) formulation of the design of the Rejang Pala’s panyacah awig in line with the characteristics of the local villages. Finally, it is hoped that the design of the panyacah awig will result in the revival of the Rejang Pala for the benefit of the culture and the welfare of the custodians of this cultural heritage.