bluuebunny/crossref_metadata_2025 huggingface dataset:
Knowledge Economy Model for the State of Hidalgo
Authors: Lira Aguilar Juan Manuel , Pons Cabrera Sergio Ramses , Gaona Rivera Elías
Published: January 2022

This article aims to create a knowledge economy model to be applied in the state of Hidalgo, conducting an exhaustive investigation on the formation of a knowledge economy, as well as a comparative analysis between the state of Hidalgo and nine states more than the Mexican Republic with a certain criterion, in relation to the factors that delimit said economy. These factors are a series of variables taken from 2015: literacy, upper secondary and higher education, researchers, Innovation Stimuli Program (PEI), Mixed Fund associated with the state government (FOMIX), telephony, internet, computers, television, patents, industrial designs and utility models. To later use a method created by the World Bank, which is called Knowledge Assessment Methodology (KAM).
Foreign Direct Investment and Its Impact on The Regional Level: A Prospective Analysis
Authors: Atanacio Pérez Angel Giovanny , Hernández Gracia Tirso J. , Duana Ávila Danae
Published: January 2022

Some countries in development like China, the Philippines, Nigeria, Pakistan, Bangladesh, Vietnam and Ukraine do an active promotion in order to raise foreign direct investment (FDI) under the proposal of a positive effect in economic growth while implementing this type of fundraising. Thus, it constitutes an important source of external financing, allowing increases in productivity through technologic transfer as well as rises in competitiveness, efficiency in the managerial models, and expand the countries’ exporting capabilities. After the economic crisis experienced in the 80’s, Latin America, specifically countries like Argentina, Brazil and Mexico, that have based their financing in loans, stopped to raise money by these means when the crisis appeared, arising as an alternative the FDI, also on account of the foreign creditors demanding the payment of their issued resources and the warning of not giving any more financing until these countries restructure their economies, it was established the capital stock of the recipient economy. In this context, it was necessary to implement structural reforms, which were contemplated in the “Washington Consensus”, such as price stabilization and fiscal deficit control with the purpose of recovering the trust to investors and reactivating the capital flow through loans or foreign direct investment aimed at Latin America. In 1990, foreign direct investment became the primary source of external financing to peripheral countries (Aitken y Harrison, 1999:1).
Bioethics and Nutrition in the Older Adult
Authors: Aguilera-Hernández Jessica Andrea , Lopéz Pontigo Lydia , Acuña Gurrola María del Refugio , Omaña Covarruvias Arianna
Published: January 2022

At the professional practice of nutrition, as in the rest of the health disciplines, it is necessary to follow high standards in order to establish the best doctor-patient relationship and the greatest benefit in the user's health. In a special way, the factors that are indexed in the nutrition of the elderly must be specified; since, during the stage of old age, individuals present physiological and psychosocial changes that affect their nutritional status, which lead to both overweight and malnutrition, implying malnutrition problems. Thus, recommendations are established for both the ethical aspects and the components that must be considered for the adequate feeding of the elderly, including the ethical considerations involved in the interventions.
Activity of a psychologist in a Medical Specialties Unit: Ambulatory Center for the Prevention and Attention of AIDS and other sexually transmitted infections.
Authors: Diego-Martínez Mario , Caballero de Carranza-Ayala Vanessa
Published: January 2022

Introduction: The attention provided at Medical Specialties Unit (UNEME), Ambulatory Center for the Prevention and Attention of AIDS and other sexually transmitted diseases (CAPASITS), the psychologist develops activities that strengthen the patients’ treatment, as a part of a multidisciplinary work. In this way, it becomes essential knowing the importance of the psychologist activities and how they get involved in the Public Health problems. Objective: To analyze the professional competencies that psychologists must possess and how they apply them in their activity at the UNEME CAPASITS Material and Methods: A descriptive bibliographic review was carried out. For the inclusion criteria, it was considered that they will report on: the development of professional skills of health psychologists, the activity of psychologists in public health institutions, development of professional skills of the psychologist and the objectives of health psychology. To search for information, the following keywords were used: health psychology, activity and professional skills. The bibliographic search was performed in the databases: EBSCO, ScienceDirect, Dialnet, PubMed, REdalyc, ResearchGate and pages from official sites: WHO and the National Center for the Prevention and Control of HIV and AIDS. Results: From the analyzed information it was found that the professional competencies that the psychologist must possess in the field of health are focused on the management of preventive strategies, use of health technologies, creation of plans and programs to promote a healthy lifestyle, evaluation and treatment as well as collaborative work. Conclusions: The UNEMES CAPSITS require that psychologists possess competencies such as: communication, use of information and communication technologies (ICT), research, evaluation for treatment, monitoring and creation of clinical records, in addition to: research for health and the dissemination of the results, especially in the treatments.
Lifestyles and school performance of health sciences students
Authors: Villegas Delgadillo Rosa Nayheli , Manzur-Valdespino Salvador
Published: January 2022

Introduction: Lifestyles at the college stage involve fundamental changes in human development, which may have an impact on the school performance. The present work consists of a documentary review on the lifestyles of university students Objective: To identify the information that allows the evaluation of the lifestyles that are associated with the school performance of students of health sciences. Methodology: The research was carried out by using the keywords: lifestyles, school performance and students of health sciences, through PubMed and Crossref, in addition to the websites of public institutions, governments or organizations. The results of 20 studies were analyzed, which included a student population that was intervened through questionnaires about their lifestyles in school systems Results: It was found that students have unhealthy habits, 40% of students do not exercise, 90% of students consume junk food and 1 out of 5 students have mental health disorders. All of the above is striking, since being students of health sciences, it would be assumed that they practice healthy lifestyles, however, their knowledge has been little applied. Conclusion: Lifestyles and school performance are a problem that worries students, parents, teachers and authorities, not only in our country but also in other countries of the world.
Diagnostic assertiveness of cerebellar pilocytic astrocytoma in the pediatric age
Authors: Pichardo-Ávalos Ana L.
Published: January 2022

Pilocytic astrocytoma of the cerebellum in the pediatric age is the most frequent benign tumor lesion of the nervous system in children according to the WHO. International literature mentions that being low-grade tumors they have a high curative capacity. If the entire tumor is resected, when it is completely removed, survival increases with a high quality of life for children who presented this pathology and was treated on time. However, the delay in diagnosis and therefore in its treatment could generate the possibility of tumor transformation, the malignant nature of the transformed injuries has a very high morbidity and mortality, without mentioning that the degree of cognitive sequelae greatly affects the quality of life of the survivors. That is why the training of pediatric and non-pediatric first contact doctors imply a great responsibility since it gives the population and patients suffering from this nosology the possibility to improve their future life, as well as reduce the cost of the impact caused by the injuries they suffer. On the other hand, these tumors can transform generating devastating prognoses, without taking into account the economic and social repercussions of patients suffering from a low-grade tumor. When it is detected and treated assertively in a timely manner, it offers them greater opportunities than those who did not have such a timely diagnosis.
Lógica de control para tope inteligente
Authors: Charre-Ibarra Saida M. , Oliva-Cortés Luis A. , Manzo-Salvatierra Fergus A. , Gudiño-Lau Jorge , Alcalá-Rodríguez Janeth A. , Vélez-Díaz Daniel
Published: January 2022

En este artículo se describe el diseño y desarrollo de un sistema de tope inteligente, el cual tiene aplicación en avenidas que presentan problemática con el tráfico vial, el planteamiento parte de la situación presente en una de las avenidas principales del Puerto de Manzanillo. Este sistema utiliza un dispositivo para sensar la velocidad, el cual recibe constantemente diferentes datos en un lapso de tiempo, por lo que es necesaria una técnica de programación de lógica de control para que el tope se eleve o se mantenga abajo.

El sistema utiliza sensores ultrasónicos para calcular las velocidades de los vehículos, y así determinar si el conductor circula a alta o baja velocidad, como resultado el tope puede elevarse o mantenerse abajo para que el vehículo pase libremente. El tope inteligente, está compuesto por un semáforo que indica si está activado, también cuenta con una botonera para que los peatones lo puedan activar al momento que necesiten cruzar la avenida, también cuenta con un sistema transmisor – receptor el cual será vinculado con vehículos de emergencia (ambulancia, policía, bomberos, etc.) para habilitarlo cuando se requiera.
Amenazas de seguridad a considerar en el desarrollo de software
Authors: Sánchez-Bautista Gabriel , Ramírez-Chávez Lizbeth
Published: January 2022

El desarrollo de software debe tener en consideración las amenazas que existen en cuanto a la privacidad y seguridad de la información. Estas amenazas pueden significar grandes pérdidas para las organizaciones que se traducen en pérdidas económicas, acceso a información confidencial por parte de usuarios sin autorización o la caída de los sistemas. Estas amenazas toman especial importancia debido a la gran dependencia que hoy en día tenemos en los sistemas de información. Por ejemplo, el auge del comercio electrónico ha incrementado considerablemente el número de transacciones que se realizan por Internet, lo cual conlleva que los usuarios proporcionen datos sensibles referentes a métodos de pago y direcciones de facturación. Así mismo, los usuarios tienen que confiar en que están proporcionando la información a un sistema confiable que manejará de forma segura sus datos. Otro ejemplo es el uso cada vez mayor de la tecnología cloud computing, en la que los usuarios almacenan información privada en servidores de proveedores externos sobre los cuales no tienen control y su información podría estar siendo utilizada para otros propósitos de los cuales no tienen conocimiento. De igual forma, el uso de aplicaciones en teléfonos móviles para servicios de banca por Internet podría significar una amenaza en cuanto el acceso a cuentas por parte de usuarios malintencionados si no existen los mecanismos de seguridad necesarios para la autenticación de los usuarios. Es una realidad que la falta de medidas que garanticen la seguridad y privacidad de la información puede desencadenar en escenarios catastróficos. Por este motivo, este articulo identifica las amenazas y vulnerabilidades que deben ser tomadas en consideración para el desarrollo de software, de tal forma que se produzca software que cumpla con las características de seguridad necesarias a fin de garantizar la disponibilidad de los servicios y la integridad de la información.
Conocimiento y estigma sobre personas con esquizofrenia en estudiantes de enfermería
Authors: Pérez-Delgado Itzel J. , González-Cruz Pedro U. , Camacho-Rodríguez María M. , Vélez-Díaz Gustavo , Cano-Estrada Edith A.
Published: January 2022

Introducción: La esquizofrenia es un problema de salud pública manifestado por conductas fuera de las normas sociales, la falta de conocimientos podría influir en la calidad de la atención de enfermería. Las personas que padecen este trastorno suelen ser discriminados y estigmatizados. Objetivo: Valorar el nivel de conocimiento y la presencia de estigma sobre las personas con esquizofrenia en los estudiantes de Enfermería. Material y métodos: Estudio cuantitativo, descriptivo, transversal, muestra no probabilística n=28 estudiantes de sexto, séptimo y octavo semestre de la Licenciatura en Enfermería de la Escuela Superior de Tlahuelilpan; en el periodo de marzo-mayo 2021. Se aplicó la Escala de devaluación y discriminación percibidas (α-Cronbach: 0.76) y el Cuestionario de conocimientos sobre la esquizofrenia (α-Cronbach: 0.72).  Resultados: El 39.3% de estudiantes corresponde a sexto semestre, 25% a séptimo y 35.7% a octavo, de ellos 85.7% son mujeres y 14.3% hombres. El 21.4% de los estudiantes de la Licenciatura en Enfermería de la Escuela Superior de Tlahuelilpan presenta un conocimiento suficiente mientras que el 78.6% representa a estudiantes con un conocimiento deficiente, el 3.6% no presenta estigma y 96.4% presenta estigma. Conclusiones: Los conocimientos sobre personas con esquizofrenia de los estudiantes de la Licenciatura en Enfermería son deficientes y presentan estigma.
El modelo ecológico de Bronfenbrenner-Morris como marco explicativo de los factores que inciden en la vacunación versus COVID-19.
Authors: Arrieta-Villarreal Juan L. , Guzmán-Saldaña Rebeca , Lerma-Talamantes Abel
Published: January 2022

El modelo ecológico de Bronfenbrenner-Morris (1998) permite estudiar los factores biopsicosociales asociados con la vacunación contra la COVID-19. Este modelo facilita la identificación y comprensión de todas las variables que inciden directa e indirectamente sobre la persona, y que son factores decisivos para que los individuos se vacunen o no; cabe señalar que algunos de estos factores incluso ni se consideran cuando se trata de promover acciones a través de las campañas de vacunación. En la Figura 1 se pueden observar los cuatro subsistemas definidos en el modelo, con sus respectivos elementos que los integran: a) Microsistema (p. ej. experiencias familiares y cambios en la rutina cotidiana), b) Mesosistema (p. ej. campañas de vacunación locales y la ubicación de la persona), c) Exosistema (p.ej. redes sociales y los medios de comunicación), y d) Macrosistema (p.ej. el movimiento antivacunas y las llamadas “Teorías Conspirativas”).
ANALISIS PENGARUH PENDAPATAN BANK SYARIAH DAN PENDAPATAN BANK KONVENSIONAL TERHADAP PROFITABILITAS BANK (Studi Kasus Pada Bank BRI Syariah dan Bank BRI Umum)
Authors: Abdillah Rizka , M.Nur Mukhlis , Andriyani Devi
Published: January 2022

This study aims to determine the effect of Islamic bank revenues and Conventional Bank Revenues on bank profitability (a case study at BRI Syariah and BRI Conventional). It uses scond data obtained by documentation and literature methods. The samples are quarterly data revenues received by BRI Syariah from 2012 to 2019, quarterly data of revenues received by BRI Conventional from 012 to 2019, and quarterly data on ROE of Bank BRI from 2012 to 2019. The data analysis program with the multilinear method regessionand with help of Eviews program. The results partially show that Islamic bank and conventional bank revenues doesn’t has significant profitability effect to profitability of Bank BRI. Simultaneously, Islamic bank and conventional bank revenues do not significantly influence Bank BRI profitability. The magnitude effect of Islamic bank and conventional bank revenues on Bank BRI profitability is 0.06 (6%), and the remaining 11-0. 06 = 0.94 (94%) can be explained outside of this research model.
Las PyMES dirigidas por mujeres en Puebla: los retos ante la crisis económica
Authors: González Pereyra Rocío
Published: January 2022

Recientes estudios relativos a la genealogía de las mujeres reportan una progresiva incorporación de éstas en las actividades empresariales. Mi intención es ocuparme de tales aspectos, con la finalidad de mostrar su relevancia en la investigación de la situación de las mujeres empresarias en el desarrollo local poblano. El que ellas se integren a ese ámbito es un fenómeno interesante de indagar, ya que en su decisión inciden elementos de orden social y cultural muy sugerentes para el análisis de la participación económica femenina, el mercado de trabajo y el desarrollo empresarial.
Análisis documental de las implicaciones de la tecnología como medio de innovación en la toma de decisiones empresariales
Authors: Silva Almanza Ivonne Janette
Published: January 2022

Uno de los ejes centrales de toda organización es la toma de decisiones, cuya base estructural es la información, misma que si es debidamente gestionada a través de herramientas tecnológicas pueden brindar de certeza a su usuario, que a su vez asegura decisiones que pueden brindar de ventaja competitiva a la organización que la gestione. Sin embargo, la tecnología es un factor que se mantiene en constante dinamismo, y como consecuencia, se debe atender las implicaciones que ésta tiene en la toma de decisiones dentro de las organizaciones.
El impacto de la Responsabilidad Social Empresarial en la crisis COVID 19 en México
Authors: Hernández Leal Angélica
Published: January 2022

El confinamiento derivado de la crisis mundial por la pandemia COVID 19 durante el último año, ha provocado fuertes riesgos de diferente índole, de salud, económica, humanitaria, comercial, y laboral entre otras; la resiliencia empresaria ha sido puesta a prueba de diferentes formas, en sus estrategias administrativas de contingencia, y responsabilidad social (RSE) para sobrevivir a los actuales retos y coadyuvar a detener de alguna manera la debacle económica en todos los niveles.  El objetivo de este  documento es analizar el impacto de  RSE como atemperante para  resguardar la vida humana y disminuir de alguna forma la caída mercantil derivada del fenómeno en curso; el método de investigación utilizado es mixto con diseño deductivo,  con énfasis en las variables: la situación pandémica como la amenaza a afrontar y la habilidad de las empresas para manejar esta condición a partir del estudio de catorce empresas de diferentes giros y tamaños, observados bajo un encuadre teórico de contingencia y responsabilidad social empresarial que permite entender las interacciones entre las variables presentadas,  con resultados que aportan a la comprensión de qué prácticas contribuyen de mejor forma al problema que hemos vivido en los últimos meses.
Intención de generar E-WOM en Instagram derivado del encuentro con las letras monumentales turísticas
Authors: Hernández Morales Ángel
Published: January 2022

Las letras monumentales turísticas (LMT) colocadas en varias ciudades de la República Mexicana, tienen distintas finalidades como las de: identificar un destino turístico, ser parte de la vista o escenografía y propiciar contenido para ser difundido a través de las redes sociales digitales (RSD). Las investigaciones respecto al uso de las RSD, como medio para producir información en Internet sobre los destinos y servicios, son de creciente interés para el sector turístico. Por lo tanto, la presente investigación tiene como objetivo principal: analizar los factores principales que inciden en la intención de generar publicidad de boca en boca en medios electrónicos (E-WOM) en RSD derivado del encuentro con las LMT. La presente investigación es cuantitativa, descriptiva y transaccional. Se aplicó una encuesta autoadministrada, con reactivos en escala de Likert de 10 niveles, de modo aleatorio y en línea a distintas universidades en territorio mexicano durante el mes de Enero del 2020. Se realizó un Análisis Factorial (AF) con rotación VARIMAX para la extracción de los componentes con mayor carga significativa. Los sujetos de estudio fueron millennials quienes manifestaron ser usuarios de Instagram y haber compartido contenido de las LMT en su perfil. Se obtuvieron 112 observaciones validadas. Finalmente, se concluye que las LMT son un elemento visual que influye en la intención de generar E-WOM en Instagram; ya que el turista es influido por este elemento visual del destino para compartir su experiencia, proporcionar opiniones y publicar imágenes de su actividad turística.
La importancia en la acreditación sanitaria de un laboratorio de análisis químico de alimentos
Authors: Montaño Hernández Adolfo B.
Published: January 2022

El presente análisis de investigación presenta la Importancia en la Acreditación de Laboratorios que ofrece el servicio de análisis químico de alimentos y productos industriales. Sin la existencia de estos Laboratorios Bromatológicos Acreditados, no habría la suficiente calidad y salubridad necesaria para llevar un control en todo lo que se consume, por ende, existiría un mayor número de virus, enfermedades y mortandad.  La EMA (Entidad Mexicana de Acreditación), señaló que los laboratorios que cuentan con la respectiva acreditación le pueden otorgar mayor confiabilidad y hacerlos sentir más seguros a sus clientes sobre los productos y servicios que se les ofrece, también se dispone con análisis muy minuciosos que evalúan la exigencia que está ofreciendo algún Laboratorio en el cual se les exige altos estándares de calidad y salud.
Factores psicosociales que impactan en el estrés organizacional: primera aproximación teórica
Authors: Flores Aguilar Juan Carlos , Terán Cazares María Mayela
Published: January 2022

En los últimos años se han tenido cambios significativos en los entornos económicos, políticos, sociales y organizacionales a nivel global, los cuales han impactado en la vida diaria y en la salud de los individuos en los núcleos familiares, sociales y laborales. El estrés es un problema de salud pública que ocasiona diversos trastornos psicológicos, fisiológicos y emocionales. En el contexto organizacional el estrés repercute a su vez, en los principales indicadores de negocio en las organizaciones públicas y privadas, por lo cual ha llamado la atención de investigadores, instituciones y gobierno para estudiar su origen, los factores que ocasionan e impactan en el trabajador y el entorno organizacional. Este estudio se realizó con la finalidad de describir en una primera aproximación teórica, los factores psicosociales que impactan el estrés en las organizaciones. Para ello, se utilizó una metodología documental basada en el uso de fuentes secundarias; mediante la revisión bibliográfica de artículos científicos por autores y organismos especializados. Se analizó la fundamentación epistemológica del estrés organizacional, las causas y consecuencias con datos, hechos, modelos y teorías con la finalidad de contribuir en la generación de un modelo que intervenga en el análisis, identificación y prevención del estrés organizacional en el ámbito laboral.
El etnocentrismo como antecedente de la intención de compra de productos nacionales
Authors: Morán Huertas Alexis Jazmín , López Lira Alfonso , Terán Cázares Mayela
Published: January 2022

El objetivo de esta investigación es identificar los principales estudios que demuestran que la variable etnocentrismo es un antecedente de la intención de compra de productos nacionales, con la finalidad de que en futuros estudios se compruebe si en México la relación entre variables es significativa. En esta investigación cualitativa se seleccionaron 22 artículos en total para el desarrollo de este artículo. Se encontró teóricamente en los estudios empíricos que el etnocentrismo es un antecedente de la intención de compra de productos nacionales y muestra una relación significativa con la variable dependiente. Se recomienda que las futuras líneas de investigación realicen estudios empíricos en México y distintas regiones de Latinoamérica para medir estadísticamente el grado de influencia de los consumidores en la intención de compra de productos nacionales.
Control interno y su relación con el desempeño comercial
Authors: Comendeiro Humberto
Published: January 2022

El control interno ha sido reconocido como un instrumento que permite a cualquier organización obtener una seguridad razonable en el cumplimiento de sus objetivos de negocio e informar sobre su gestión a las partes interesadas en ella. Al mismo tiempo, uno de los procesos claves para alcanzar resultados empresariales satisfactorios y sostenibles a largo plazo son las ventas y en un sentido más amplio el desempeño comercial. Con respecto a esto, la evaluación debe quedar restringida a los factores que están bajo control exclusivo de la organización, entre los que se encuentra la gestión del sistema de control interno. Todo ello nos lleva a las conclusiones de que la correcta implementación de los mecanismos de control interno reforzará las áreas comerciales vinculadas al ciclo de ventas.
Réécrire l'histoire : théâtre et révolution dans An tan révolisyon de Maryse Condé
Authors: Catan Fély
Published: January 2022

Cet article s’intéresse à la représentation de l’histoire dans le théâtre radicalement contestataire de Maryse Condé. Alors que l’histoire et la mémoire sont convoquées par le discours officiel pour glorifier les valeurs républicaines et la Révolution qui les a produites, la dramaturge s’attèle à déconstruire cette histoire positiviste en proposant une perspective créocentrique résolument tournée vers le devenir des peuples caribéens. Nous analysons ainsi la manière dont An tan révolisyon mobilise le passé pour évoquer le monde présent tout en développant un propos ambigu face aux nationalismes antillais.
Development of Support Plan and Operation Scheme for Semimechanized Longwall Face of Coal Seam 10T, Nam Khe Tam Mine – 86 Company, Dong Bac Corporation
Authors: VU Trung Tien , LE Tien Dung , LE Tien Dung , VU Thai Tien Dung
Published: January 2022

Support plans and operation schemes of mine faces are critical technical documents inunderground coal mining management. The development and selection of a reasonable support plan andoperation scheme of the face are complicated because they involve many factors. In specific miningconditions, developing and selecting an appropriate support plan and operation scheme will improve theworking efficiency of equipment, increase labor productivity, and ensure workers' safety. This articleresearched a mining technology for the thin seams, focusing on coal seam 10T in Nam Khe Tam coalmine, 86 Coal Company. From the analysis of geo-mining conditions, the article developed and selecteda reasonable support plan and operation scheme for the face in coal seam 10T. After being used in thefield, the support plan and operation scheme have brought the face efficiency and safety.
Method of Air Temperature Forecast in Mechanized Longwall Workings in the Conditions of Vietnamese Mines
Authors: TRUONG Tien Quan , ŁUCZAK Rafał , ŻYCZKOWSKI Piotr , BOROWSKI Marek
Published: January 2022

In the most recent years, the Vietnam National Coal - Mineral Industries Holding CorporationLimited (VINACOMIN) has been dynamically developing mechanization technologies in undergroundcoal mines. The climatic conditions of Vietnam, as well as increasing the depth of the coal seams and theproduction capacity, contribute to an air temperature increasing in mining excavations. The articlepresents statistical equations enabling air temperature forecasting at the outlet of mechanized longwallworkings. The results of numerical calculations, obtained from the solutions of the adopted mathematicaldescriptions, were compared with the measurement results and the statistical significance of the obtaineddeviations was determined. The performed analysis allowed to assess the practical usefulness of theadopted model for the air temperature forecasting in the workings of mechanized underground mines inVietnam. The presented method can be used as a tool for mining services in the fight against the climatethreat in underground excavations.
Cause and Solution to Roadway Deformation in Vietnam Underground Coal Mines
Authors: LE Quang Phuc
Published: January 2022

The deformation and support method of roadways have always been important issues in safemining and production. Vinacomin's statistics show that, by 2021, there will be 64.19 km of roadwaysthat need to be repaired (accounting for 25% of the total new roadways). Thus, the problem of maintainingroadway stability is facing difficulties in underground coal mines in Vietnam. To find out the causes ofroadway failures, a case study at roadways of the Khe Cham I and Khe Cham III coal mines, Vietnam, ispresented in this paper. Based on the results of a detailed field survey, the deformation characteristics ofroadways and the failure mode of support structures were investigated. The results show that the roadwaydeformation is severe and the main support cannot control surrounding rock mass. Also, the destructionof support structure is frequent on reused roadways, affecting production efficiency and work safety.Therefore, to reduce deformation and increase roadway stability, a new support method called “multistageanchor of rock bolt + cable bolt” has been developed and a new longwall mining system with criticalcoal pillar width has been proposed. The new findings of the research can provide references for scientificstudies, and apply them in Vietnam's underground coal mine practices.
ANALISIS PERBANDINGAN TINGKAT UNDERPRICING PADA INITIAL PUBLIC OFFERING (STUDI KASUS PADA PERUSAHAAN DI INDONESIA DAN MALAYSIA YANG MELAKUKAN IPO PERIODE 2015- 2018)
Authors: Triana Yani  , Effendy Lukman , Lenap Indria Puspitasari
Published: January 2022

Tujuan penelitian ini adalah untuk menganalisis adanya perbedaan tingkat underpricing di Indonesia dan Malaysia. Selain itu, penelitian ini juga bertujuan untuk menguji pengaruh ROA, DER, dan ukuran perusahaan terhadap tingkat underpricing saham pada penawaran perdana saham (IPO) yang terdaftar di Bursa Efek Indonesia dan Malaysia periode 2015-2018. Populasi dalam penelitian ini adalah perusahaan yang melakukan Initial Public Offering (IPO) pada tahun 2015-2018 di Malaysia dan Indonesia yang tercatat pada bursa efek masing-masing negara tersebut. Metode pengambilan sampel yang akan digunakan dalam penelitian ini menggunakan teknik sampling purposive dan diperoleh 136 sampel perusahaan dari 183 perusahaan yang melakukan Initial Public Offering (IPO) pada tahun 2015-2018. Metode analisis pada penelitian ini menggunakan Uji Mann Whitney dan analisis regresi berganda. Hasil penelitian Uji Mann Whitney menunjukkan bahwa terdapat perbedaan tingkat underpricing saham di Indonesia dan Malaysia. Dimana rata-rata tingkat underpricing saham saham di negara Indonesia lebih tinggi dari Malaysia. Hasil penelitian analisis regresi berganda tingkat underpricing di Indonesia dipengaruhi oleh ROA, DER, dan ukuran perusahaan. Sedangkan tingkat underpricing di Malaysia hanya dipengaruhi oleh ROA, dan DER.
Effect of salicylidene salicylhydrazide on testes of albino mice: A histomorphological study.
Authors: Shagufta Sultana  , Muhammad Haris  , Falak Naz  , Shazia Iftikhar  , Zainab Rehman
Published: January 2022

Objectives: To evaluate salicylidene salicylhydrazide (SCS) for any possible toxicological effects on male reproductive system in Albino male BALB/c mice. Study Design: Experimental study. Study Setting: Department of Histopathology, Khyber Medical College Peshawar and Department of Pharmacy, University of Peshawar, Peshawar were utilized for conducting this study. Period: July, 2020 to December, 2020. Material & Methods: Male BALB/c mice were daily administered with SCS at 5, 25, and 50 mg/kg for 7 and 14 days. The body and testes weights were measured and the testes were subjected to histological tissue processing techniques. Results: The extent of testicular toxicity was evaluated by using modified Johnsen scoring system for assessing the level of spermatogenesis, and morphometric analysis by measuring the diameter of the seminiferous tubules, thickness of germinal epithelium, and area of interstitial cells of Leydig. The body and testes weights showed that the various doses of SCS have no substantial effects after 7 and 14 days. The tested doses of SCS did not produce any distinguishable change in the normal histological features of seminiferous tubules and interstitium after 7 days. However, after 14 days, the 50 mg/kg dose of SCS was associated with vacuolization and loosening of germinal epithelium. These mild-to-moderate histopathological aberrations was confirmed from morphometric analysis in this dose group in which a decrease in the seminiferous tubules’ diameter and reduction in the thickness of germinal epithelium along with an increase in the interstitial area were observed. Conclusion: These findings concluded that SCS is considered to be relatively safe.
A Review of COVID-19 Initial Response Systems and A Proposal to Adjust the Operation of Residential treatment centers
Authors: Choi Jisook , Park Hyeki , Kim Soomin , Kim Areum , Park Choon-Seon
Published: January 2022

Objective: The COVID-19 pandemic has caused a periodic shortage of quarantine beds, medical personnel, and medical equipment in South Korea. Asthe pandemic is expected to continue, a need existsto readjust the capacities of residentialtreatment centersfor asymptomatic ormild cases. Thisstudy aimed to identify howother countriestreat asymptomatic or have mild COVID-19 patients, and suggest a effective operation plan of residential treatment centers.Methods: A literature review was conducted to examine how policies on asymptomatic or mild COVID-19 cases have changed at different phases of the pandemic in different countries. A reviewwas also conducted on the epidemiological characteristics of Korean patients, including clinicalstatus and treatment period, and public opinion on residential treatment centers. A plan to improve how residential treatment centers operate during the pandemic was derived based on expert advice, and discussion within the research team.Results: Home care is being recommended for asymptomatic or mild cases of COVID-19 in many countries. In Korea, despite the increase in the number of newly confirmed cases, fatality rate of COVID-19 shows a decreasing and vaccination rate an increasing trend. Three-fourths of the public recognized that home care may be more appropriate for asymptomatic or mild cases. Assuch,we recommend a reduction in length ofstay in residential treatment centers, from 10 to 3 or 5 days, and ensuring patient’s participation in decision‒making of hospitalization.Conclusions: A need existsto prepare a systematic response system, including patient education, virtual treatment and transfersystem in orderto shorten patients’ admission period in residential treatment centers and expand home care. A functioning emergency response system should also be prepared concurrently.
Effect of the Heating Rate on Austenite Formation
Authors:   American Welding Society, HINTZE CESARO ALEJANDRO , MENDEZ PATRICIO F.
Published: January 2022

The extent of the heat-affected zone (HAZ) in welding is typically estimated from thermodynamic considerations of austenization; however, thermodynamics are a poor predictor of the HAZ location in microalloyed steels. This work addresses the problem through the study of austenite formation during continuous heating on a grade X80 pipeline steel with an initial ferritic and bainitic microstructure. The methodology involved dilatometry, electron microscopy, and thermodynamic calculations. A continuous heating transformation diagram was developed for heating rates varying from 1˚ to 500˚C/s. For the slower heating rates, austenite start-transformation temperature was higher than the one dictated by the equilibrium, while for the faster heating rates, start-transformation temperature gradually approached the theoretically calculated temperature at which the ferrite can transform (possibly through a massive transformation) without a long-range diffusion into austenite. Partial-transformation experiments suggested that austenite formation occurs in the following two stages: 1) the transformation of bainitic zones into austenite, and later, 2) the transformation of polygonal ferritic grains.
Karl Rahner and the practical theology
Authors: Laumer August
Published: January 2022

It is surprising that Karl Rahner (1904-1984), as a systematic theologian, provided essential impulses for practical theology. But he played an important role in planning and editing the "Handbuch der Pastoraltheologie" (1964-1972). The basis for this work was Rahners view of practical theology as a science of the self-fulfillment of the church in the respective current situation. However, this ecclesial conception of pastoral theology soon encountered opposition. On the other hand, his demand for a “new mystagogy” was often taken up for concepts of mystagogical pastoral care and mystagogical learning.
The Good Friday oration ad intra ecclesiam in the context of the post-conciliar liturgical reforms
Authors: Mielnik Dawid
Published: January 2022

This paper aims to juxtapose the differences between the versions of the Good Friday oration ad intra ecclesiam and unveil the theological character behind these modifications by analysing the prayers. The source materials were Benedict XV’s Roman Missal, Ordo Hebdomadae Sanctae Instauratus, Variationes in ordinem Hebdomadae Sanctae inducendae, and two typical editions of the reformed Roman Missals from 1970 and 2002. The paper is divided into three parts. In the first, the orations from the ad intra ecclesiam collection are explained. In the second, the changes to the orations are analysed. Finally, the influence on the theological character of the orations is presented. The analyses lead to the conclusion that it is difficult to specify a single criterion for the modifications in the ad intra ecclesiam collection. Sometimes, the changes resulted in a new organisation of the Church (e.g., oration for the Clergy and Laity of the Church), a shift in a person’s present state (oration for Those Preparing for Baptism), or a new understanding of the role of the Church in the world (oration for the Church). Some modifications are difficult to explain (oration for the Pope, for Those in Special Need).
Extraction of Dyes from Sunflower Petal and Their Fourier Transform Infrared Characterization
Authors: Oyeleke Gboyega Oluwaseun , Abdulazeez Ibraheem Abimbade , Adebisi Ajisola Agnes , Oyekanmi Kehinde Nasiru , Akinbode Segun Olaitan
Published: January 2022

Three solvents of different polarities (water, methanol and 1% NaOHsolution) were used to extract dyes that produced different shades fromdried sunflower (Helianthus annuus) petal. The extraction proceduresusing different solvent types were carried out separately. The dye extractswere thereafter subjected to Fourier Transform Infrared Spectrometry(FT-IR) analysis for characterization in terms of functional groups. Theintensities of the extracted dyes on the shade of colours obtained on piecesof cotton material varied from yellow in methanolic extract to light yellowin aqueous and black in 1% NaOH solution extracts. The results obtainedfrom the FT-IR analysis revealed the presence of several useful functionalgroups such as N-H, C=H, O-H and C=O in the extracts.
Distribution of some important honey plants visited by honey bees for feeding purposes in Narman (Erzurum, Turkey) natural pasture vegetation
Authors: Mahir Murat Cengiz  , Muhammet Ali Tunç
Published: January 2022

Narman district is located at Eastern Anatolia Region of Turkey. Average altitude is 1650 m, annual total precipitation is about 420 mm. In study area main economic activity is animal husbandry and animal production has made traditional practices, based on rangelands. This study carried out to determine honey plants, frequently visited by honey bees in 20 different locations of Narman. Total 56 plant species were determined and half of these plant species determined as visited plant species by honey bees. Most of honey plant species, determined in locations were wide leafy forbs and some of them were legume species. To determine botanical composition of rangeland vegetation in different locations line intercept method was used. The percentage of all plant species was calculated and each individual honey plant species percentages were determined. Some Alfalfa, Sainfoin, Lotus, Melilotus, Coronilla and Trifolium species were determined in locations. Thymus, Stachys, Centaurea and Campanula species were determined common plant species visited by honey bees.
Design of primers in the molecular detection of Feline Panleukopenia Virus
Authors: Cristóbal Heraldo Carreño  , Carlos Osvaldo Navarro  , María Antonieta Jara
Published: January 2022

Feline Panleukopenia is a disease characterized by a reduction in the number of circulating leukocytes and enteritis with degeneration of the intestinal villi. The etiologic agent, called Feline Panleukopenia virus (FPV), belongs to the Parvoviridae family, is highly contagious and has high mortality and morbidity. Although vaccination of healthy cats is the most effective way to prevent the disease, once the symptoms appear, the treatment is supportive, presenting high mortality in the first days of the disease. FPV positive cats should be hospitalized and isolated for at least 2 weeks to avoid viral transmission. Early detection is usually done with the enzyme-linked immunoadsorption assay (ELISA) test that detects viral antigens in stool samples. As a complementary diagnostic method, in this work it was proposed to implement the Polymerase Chain Reaction (PCR) aimed at the diagnosis of FPV initially in positive samples from two feline vaccines and one canine vaccine. As an approximation to real samples, the commercial vaccines were mixed with feces and blood from a healthy cat. The results showed that the In Silico design was successful strategy based on the VP2 gene sequences of FPV available in GenBank® in conjunction with the sharp visualization of positive controls of the expected size and without amplification. nonspecific or negative controls. The fragments obtained has a nucleotide identity percentage greater than 97% with respect to the information available in Genbank® and corroborates the detection of a VP2 fragment. Thus, the future option of applying the same protocol in a diagnostic way is opened, using samples obtained from suspected patients who are infected with FPV.
In vitro study of potential antibacterial pometia pinnata leaf extract in Neisseria gonorrhoeae
Authors: Widayani Gandi Ari Savitri , Anwar Muhammad Choiroel , Sudirman Sudirman
Published: January 2022

Background: Gonorrhea cases experiencing antibiotic resistance are increasing due to inadequate treatment or failure to contribute to an increase in antibiotic resistance cases; WHO suggests adding herbal therapy treatment methods is expected to minimize the occurrence of drug resistance as much as possible. Previous studies that have been carried out using other herbal plants have not shown any potential to inhibit the growth of Neisseria gonorrhoeae bacteria, seen from the amount of extract concentration and the dosage and content of the compounds in the contents monitoring the time.Objective: To analyze the difference in the effect of various concentrations of Matoa Leafs Extract (Pometia Pinnata) compared to 500mg Levofloxacin on the increase in the growth inhibition of Neisseria gonorrhoeae.Methods: This is true-experimental research with a post-test-only control group with a randomized design. The sample in this study was the microorganism Neisseria gonorrhoeae obtained through vaginal swabs in 2 females (FSW) positive for Gonorrhea by gram staining and microscopic examination and culture on Chocolate Agar Plant (CAP) media. The culture was then suspended in CAP media. Matoa Leaf extract concentration of 100%, 80%, 60%, 40%, 20%, positive control with Levofloxacin 500 mg and negative control with distilled water with four replications and monitoring in 24 hours, 48 hours, 72 hours, and 96 hours. Data analysis used Kruskal-Wallis, Mann-Whitney, and cohen's test. Result: Levofloxacin 500mg in inhibiting Neisseria Gonorrhoeae bacteria is very effective, and Matoa Leaf extracts 60% and 40% P=0,026 have a strong enough potential to inhibit the growth of Neisseria gonorrhoeae bacteria with the same potential strength. The cohen's test 1.4 effect the levofloxacin 500mg provides a significant influence inhibiting Neisseria Gonorrhoeae.Conclusion: Matoa Leaf extract 60%, and 40% have solid antibacterial potential, although not as strong as Levofloxacin 500mg.
Perancangan Mesin Vakum dan Pengemasan Untuk Produksi Olahan Jamur Tiram Dalam Rangka Meningkatkan Nilai Jual dan Masa Pakai
Authors: Anderson Sir , Harfardi Harfardi , Feidihal Feidihal , Rahmi Fiska
Published: January 2022

The design of this Vacuum and Packaging Machine is made in order to increase the sale value and service life for processed Oyster Mushroom products. Not only that, this machine can do packaging in a short time and efficiently. This machine consists of Frame, Vacuum Motor, Impulse Sealer, Vacuum Clamp. This Vacuum and Packaging Machine has dimensions of length 700 mm x width 500 mm x height 700 mm. The impulse sealer used is Arashi Ais 400 type by using a VE115N 2 CFM type vacuum motor. From this vacuum motor will later be connected to the vacuum clamp as a tool to clamp the packaging during the process of vacuuming the air in the package. This machine is equipped with a limit switch on the vacuum clamp that works to connect the current to the vacuum motor so that the vacuum motor automatically turns on. The operation of this vacuum and packaging machine is quite simple by inserting the packaging containing the product into the sealer and at the end of the package clamped on the vacuum clamp, the vacuum motor will automatically turn on, the next step is to operate the impulse sealer so that the product is finished packed under vacuum. From the design results, the bending stress of the frame is 3.172 N / mm2, the working time of the vacuum and sealer is 1.54 s per package, and the estimated price of the machine is Rp. 1,879,000
Pengaruh Fraksi Volume Serat Jerami Terhadap Kekuatan Material Komposit Aplikasi Kayu Lapis
Authors: Oktaviameta Anggrek , Kardiman Kardiman , Suci Farradina Choria
Published: January 2022

Polymer Matrix Composite (PMC) is a composite material that uses a polymer matrix most widely used in industry, transportation, and everyday life. Plywood is one of the current industrial needs that is growing rapidly and is becoming a leading export. However, besides that, the availability of raw materials is decreasing along with deforestation. Resulting in the need for alternative raw materials. Straw is one of the largest wastes that is not utilized optimally. It can be used as straw as a reinforcing material for environmentally friendly composite materials. Composite material was made using the hand lay up method, with straw fiber purchased with 4% NaOH treatment using Yukalac 157 BQTN-EX unsaturated polyester resin and MEPOXE A hardener. Then, tensile testing was carried out with volume fractions of straw fiber 5%, 10% 20% and 30 % This shows that the volume fraction of straw fiber affects the strength of the composite material. The tensile strength value of the straw fiber composite meets the minimum standard for tensile strength in plywood. Judging from the surface structure of the composite material, there are voids or air bubbles. However, the most visible in the sample with fractions of 10% and 20%. Further research needs to be done with other tests such as hit test, sandpaper test to meet the requirements for SNI standard plywood.