bluuebunny/crossref_metadata_2025 huggingface dataset:
Rendimiento diagnóstico del cultivo y susceptibilidad de Helicobacter pylori en pacientes peruanos: resultados de un laboratorio centinela
Authors: Olano Maricruz , Chu Manuel , Guzmán Jesus , Castillo Denis , Sauvain Michel
Published: October 2021

Objetivo. Analizar la susceptibilidad antimicrobiana de Helicobacter pylori a 5 antibióticos de referencia, en pacientes dispépticos del Servicio de Gastroenterología del Hospital Cayetano Heredia y la Clínica Cayetano Heredia en Lima, Perú. Materiales y métodos. Se colectaron biopsias gástricas de 500 pacientes diagnosticados con dispepsia. A partir de estas biopsias, se aislaron y cultivaron 273 cepas de H. pylori para confirmar la infección mediante el diagnóstico histológico y por cultivo. Finalmente, se analizó la susceptibilidad antimicrobiana mediante el método de microdilución en caldo y se evaluaron los perfiles de resistencia de cada antimicrobiano y los patrones de multirresistencia. Resultados. El diagnóstico de H. pylori por cultivo, comparado con la prueba histológica, reportó una sensibilidad del 83,8%, una especificidad del 89,9% y un área bajo la curva de 0,87 (IC95%: 0,84 a 0,90). La frecuencia de la infección en los servicios de gastroenterología del Hospital y la Clínica Cayetano Heredia fueron del 56,6% (237/419) y 44,4% (36/81), respectivamente. Según el Hospital/Clínica, se determinó la resistencia para amoxicilina (45,1%/29,6%), levofloxacino (71,8%/74,1%) y metronidazol (69,8%/63,0%). Los patrones de resistencia a múltiples antimicrobianos demostraron que las resistencias (dobles y triples) más frecuentes fueron con levofloxacino, metronidazol y amoxicilina. Conclusiones. La resistencia antimicrobiana de H. pylori ha aumentado con respecto a los años previos. Además, la resistencia múltiple de H. pylori presenta altas frecuencias en pacientes infectados. El método de microdilución en caldo podría ser implementado en los diferentes hospitales del Perú como una herramienta de vigilancia de la resistencia de H. pylori a los antimicrobianos.
Representación femenina en las especialidades quirúrgicas y afines en el Perú
Authors: Quispe-Arminta Marcela , Shu-Yip Sebastián B.
Published: October 2021

La equidad de género es un tema social que atraviesa diversas disciplinas. Dentro del campo de la medicina, ha sido claramente identificada la inequidad del rol de la mujer en las especialidades quirúrgicas. Limitada representatividad femenina en puestos de liderazgo de sociedades quirúrgicas o académicas, diferencias salariales en comparación con sus colegas varones y falta de programas de mentoría para llevar una carrera equilibrada son algunas de las dificultades que afrontan las mujeres que escogen una carrera quirúrgica. El presente artículo explora el estado de la mujer en la carrera quirúrgica en el Perú, las particulares limitaciones que afronta; también destaca la importancia de la participación femenina en cirugía y presenta algunas propuestas para mejorar el rol de la mujer en el campo quirúrgico.
Variantes del SARS-CoV-2: epidemiología, fisiopatología y la importancia de las vacunas
Authors: Bedoya-Sommerkamp Marcelo , Medina-Ranilla Jesús , Chau-Rodríguez Víctor , Li-Soldevilla Renato , Vera-Albújar Álvaro , García Patricia J.
Published: October 2021

El SARS-CoV-2 es un virus ARN monocatenario de la familia de los coronavirus, causante de la COVID-19 (Coronavirus Disease 2019). Este virus es responsable de la pandemia actual que, desde su aparición a finales de 2019, ha provocado la muerte de millones de personas y ha tenido un impacto global no solo a nivel sanitario sino también económico y social. Por ello, el presente artículo tiene como objetivo revisar la información más actualizada sobre el SARS-CoV-2, empezando por describir los mecanismos de transmisión del virus, su fisiopatología y filogenética. Asimismo, presentará a las variantes emergentes del SARS-CoV-2, su relevancia para la salud pública local y global, su epidemiología en Perú, y finalmente, el rol y la importancia de las vacunas en este contexto.
Derivados de hipromelosa para prevenir la infección por el SARS-CoV-2: una revisión sistemática
Authors: Hernández-Vásquez Akram , Azañedo Diego , Vargas-Fernández Rodrigo , Comandé Daniel
Published: October 2021

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Resonances and Lander Modes Observed by InSight on Mars (1–9 Hz)
Authors: Dahmen Nikolaj L. , Zenhäusern Géraldine , Clinton John F. , Giardini Domenico , Stähler Simon C. , Ceylan Savas , Charalambous Constantinos , van Driel Martin , Hurst Kenneth J. , Kedar Sharon , Lognonné Philippe , Murdoch Naomi , Myhill Robert , Panning Mark P. , Pike William T. , Schimmel Martin , Schmelzbach Cédric , Scholz John-Robert , Stott Alexander E. , Stutzmann Eleonore , Banerdt William B.
Published: October 2021

The National Aeronautics and Space Administration’s (NASAs) Interior exploration using Seismic Investigations, Geodesy and Heat Transport (InSight) lander successfully touched down on Mars in November 2018, and, for the first time, a seismometer was deployed on the surface of the planet. The seismic recordings reveal diurnal and seasonal changes of the broadband noise level that are consistent with variations of the local atmospheric conditions. The seismic data include a variety of spectral peaks, which are interpreted as wind-excited, mechanical resonances of the lander, resonances of the subsurface, or artifacts produced in the measurement system. Understanding the origin of these signals is critical for the detection and characterization of marsquakes as well as for studies investigating the ambient noise. We identify the major spectral peaks up to 9 Hz, corresponding to the frequency range the most relevant to observed marsquakes. We track the variations in frequency, amplitude, and polarization of these peaks over the duration of the mission so far. The majority of these peaks can readily be classified as measurement artifacts or lander resonances (lander modes), of which the latter have a temperature-dependent peak frequency and a wind-sensitive amplitude. Of particular interest is a prominent resonance at 2.4 Hz, which is used to discriminate between seismic events and local noise and is possibly produced by a subsurface structure. In contrast to the lander modes, the 2.4 Hz resonance has distinctly different features: (1) a broad and stable spectral shape, slightly shifted on each component; (2) predominantly vertical energy; (3) temperature-independent peak frequency; (4) comparatively weak amplification by local winds, though there is a slow change in the diurnal and seasonal amplitude; and (5) excitation during all seismic events that excite this frequency band. Based on these observations, we suggest that the 2.4 Hz resonance is the only mode below 9 Hz that could be related to a local ground structure.
JORNALISMO E INSTAGRAM: AS PRÁTICAS DE CONSUMO DE NOTÍCIAS DO PÚBLICO JOVEM GAÚCHO NO INSTAGRAM
Authors: Amalia Dalpizol Valiati Vanessa , Costa Silveira Gabriel , Prior Breda Letícia
Published: October 2021

Esse artigo buscou analisar as práticas de consumo de notícias no Instagram, a partir do consumo do público jovem da região metropolitana do Rio Grande do Sul. Para isso, foram estudados conceitos como a convergência midiática, a comunicação nas plataformas de redes sociais e a comunicação móvel. A pesquisa quantitativa foi realizada por meio de um questionário on-line respondido por 115 usuários do Instagram. A análise dos dados coletados foi organizada em gráficos para compreender as informações sociais e comportamentais, bem como estruturar os resultados e entender suas dimensões no universo estudado. Os resultados permitiram concluir que o Instagram é majoritariamente preferido pelo público jovem, que busca velocidade e diversidade de assuntos no momento em que buscam se informar.
LIDERANÇA E NOVOS DESAFIOS DA GESTÃO HOSPITALAR DIANTE DA PANDEMIA DE COVID-19
Authors: Gois Elisabete Aparecida de Souza , Silva Gisele Aparecida Moreira , Pereira Sueli Costa , Barja Paulo Roxo , Viriato Airton
Published: October 2021

A pandemia Covid-19 impactou a Gestão dos Serviços Hospitalares, bem como o desempenho e o papel das lideranças frente a essa nova epidemia. O presente trabalho teve por objetivo avaliar a prevalência de fatores associados ao papel da liderança de gestores hospitalares antes e durante a pandemia de Covid-19. Foram utilizadas as bases de dados SciELO (Scientific Electronic Library Online), Google Acadêmico, livros clássicos sobre Gestão Hospitalar e o Portal CAPES, sendo considerados artigos que avaliaram a Gestão Hospitalar e a atuação da liderança, antes e no atual momento de pandemia. A Covid-19 evidenciou uma crise mundial, sendo necessária uma transformação na estrutura e processo de trabalho das unidades de saúde, em destaque a necessidade de um bom planejamento para o enfrentamento desse advento epidêmico. A pesquisa evidencia o papel fundamental da liderança na gestão para a obtenção de bons resultados: o administrador hospitalar deve ser assertivo na tomada de decisões e ter boa comunicação interna e externa. Conclui-se que, muito além das ações rotineiras, é preciso ter formação especializada, visão inovadora e disposição para enfrentar desafios potenciais e adaptações abruptas, frente a episódios epidêmicos e pandêmicos.
ARQUITETURA HOSPITALAR SUSTENTÁVEL: O CASO DO HOSPITAL ALEMÃO OSWALDO CRUZ
Authors: De Oliveira Regina Márcia Gomes , Ramos Fernando Guillermo Vázquez
Published: October 2021

Diante do cenário contemporâneo, que procura ter um olhar cuidadoso para com o meio ambiente, a arquitetura paulistana poderia pensar em mudanças que contribuam com as metas estabelecidas pelo Acordo de Paris (alterações climáticas, 2015) e pela Agenda 2030 (desenvolvimento sustentável, 2015). Nesse contexto, a edificação hospitalar se destaca por sua complexidade de funcionamento, com grande impacto no meio ambiente e no consumo de recursos. Nesse panorama, o objetivo deste artigo é apresentar e refletir sobre as inovações com sustentabilidade incorporadas no Hospital Alemão Oswaldo Cruz (HAOC), na cidade de São Paulo. Considerando esta demanda de sustentabilidade, o hospital anuncia estar comprometido com a diminuição da emissão dos gases de efeito estufa (GEE), assim como se propôs a atingir certificações importantes do mercado, como o LEED (Leadership in Energy and Environmental Design) em busca de melhores resultados de desempenho. O trabalho analisa a atuação do hospital frente ao desafio da sustentabilidade, apoiando-se em material bibliográfico sobre o meio ambiente e arquitetura sustentável contemporânea; cartilhas e relatórios publicados pelo HAOC para coleta de dados, além de fotos e registros das intervenções realizadas no hospital. O artigo analisa ainda, a aderência das ações do HAOC, com referência às metas do Acordo de Paris e avalia se sua contribuição com resultados favoráveis ao meio ambiente diante do cenário arquitetônico do complexo.
Electric Load Forecasting for Internet of Things Smart Home Using Hybrid PCA and ARIMA Algorithm
Authors:   Department of Electrical Engineering, Hasanuddin University, Bontomarannu, Gowa, Indonesia, Rotib Hamdi W. , Nappu Muhammad B. , Tahir Zulkifli , Arief Ardiaty , Shiddiq Muhammad Y. A.
Published: October 2021

Many types of research have been conducted for the development of Internet of Things (IoT) devices and energy consumption forecasting. In this research, the electric load forecasting is designed with the development of microcontrollers, sensors, and actuators, added with cameras, Liquid Crystal Display (LCD) touch screen, and minicomputers, to improve the IoT smart home system. Using the Python program, Principal Component Analysis (PCA) and Autoregressive Integrated Moving Average (ARIMA) algorithms are integrated into the website interface for electric load forecasting. As provisions for forecasting, a monthly dataset is needed which consists of electric current variables, number of individuals living in the house, room light intensity, weather conditions in terms of temperature, humidity, and wind speed. The main hardware parts are ESP32, ACS712, electromechanical relay, Raspberry Pi, RPi Camera, infrared Light Emitting Diode (LED), Light Dependent Resistor (LDR) sensor, and LCD touch screen. While the main software applications are Arduino Interactive Development Environment (IDE), Visual Studio Code, and Raspberry Pi OS, added with many libraries for Python 3 IDE. The experimental results provided the fact that PCA and ARIMA can predict short-term household electric load accurately. Furthermore, by using Amazon Web Services (AWS) cloud computing server, the IoT smart home system has excellent data package performances.
Comparison of Conventional and Modified Direct Torque Control of Three-Phase Induction Motor Using Three-Level Flying Capacitor Inverter
Authors:   Middle Technical University, Electrical Engineering Technical College, Baghdad, Iraq, Mohammed Amirah J. , Hassan Raaed F.
Published: October 2021

The work presented in this paper aims to compare the effectiveness of different control strategies to improve the performance of the three-phase Induction Motor (IM). The Conventional Direct Torque Control (CDTC) was employed as the first strategy for driving the IM. This control strategy causes high ripples in the IM's torque and speed due to the hysteresis comparators and a variable switching frequency due to the look-up table. A modified DTC strategy based on Space Vector Modulation (DTC-SVM) was chosen as a second strategy to enhance the performance of the IM using the two-level inverter. This method, which leads to the reduction of the torque and speed ripples and achieves constant switching frequency. As the multi-level inverter becomes most popular than the two-level inverter, the third strategy is devoted to adopting the three-level flying capacitor inverter (TLFCMLI) -based DTC-SVM. The third strategy uses the method of mapping the multi-level space vector based on basic two-level SVM. Matlab/Simulink software package is utilized to implement the suggested controllers. Simulation results show that the DTC-SVM based on TLFCMLI significantly enhances the IM's performance compared with the other two strategies from the voltage and current profiles, torque, and speed points of view.
Performance and Optimization of Outage Probability in CBTC Systems
Authors:   University of Transport and Communications, Hanoi, Vietnam, Ha Do Viet , Thanh Tu Lam , Huong Trinh Thi , Chien Trinh Van
Published: October 2021

The performance of two Access Points (APs) Communication-Based Train-Control (CBTC) systems subjected to an imperfect channel state information (CSI) scenario is investigated. More precisely, we first model the realistic small-scale fading distribution for which the receiver only has the outdated CSI due to the mobility of the train. We then derive the Outage Probability (OP) of the train and the ergodic capacity of the system in the closed-form expression based on the considered channel model. Additionally, we formulate an optimization problem that minimizes the maximal OP, which corresponds to the location of the train. For such, the signal-to-noise-ratio (SNR) is minimized as a function of the position of two APs. The pattern search method is utilized to solve the considered minimization problem. Numerical results confirm that by the optimal placement of the position of APs, the OP can be significantly ameliorated compared to the other placement methods. Furthermore, the numerical results also illustrate that the proposed solution completely coincides with the exhaustive search but with much less computation time. Finally, the mathematical framework is verified extensively by Monte Carlo simulations.
Epidemiological, clinical profile and outcome of multi-system inflammatory syndrome in children (MIS-C) admitted in government tertiary care hospital of Kanyakumari district
Authors: Samuel Steeve Gnana , Monikanta Suresh Placode , Vasudevan Arul Prasath Subramoniam , Rajamanickam Nagalekshmi
Published: October 2021

We report twelve children with a median age of 7 year (IQR 3years to 12 years) who fulfilled MIS-C WHO criteria. The male to female ratio was 2:1. Affected children had gastrointestinal symptoms (92%), respiratory symptoms (67%), cardiovascular symptoms (58%), neurological symptoms (50%), renal symptoms (33%), followed by muco-cutaneous manifestations (25%). 83% of children had lymphocytopenia. It was found that lymphocytopenia was directly correlated to disease severity. The majority of the children had elevated CRP, transaminase, and deranged coagulation profiles. All 4 systems were involved in 7 children (58%). Intensive care treatment was required for all the cases (100%). There were no deaths. Children with coronavirus disease 2019 (COVID-19) associated MIS-C can present with a wide range of signs and symptoms. They can deteriorate quickly and hence a high index of suspicion; early referral and early initiation of treatment with steroids and IVIg can save the lives of children with MIS-C.
Guía para la mejora de la implementación del Programa "Mi Abrigo": Resumen
Authors: García José , Torres Édgar , García Fiorella
Published: October 2021

Con el fin de atender las necesidades de la población más vulnerable de las zonas altoandinas del Perú, que año tras año se ve afectada por el fenómeno de las heladas, el Estado peruano desarrolló el Plan Multisectorial ante Heladas y Friaje 2019-2021. Como parte de este esfuerzo multisectorial, el Fondo de Cooperación para el Desarrollo Social (FONCODES) del Ministerio de Desarrollo e Inclusión Social (MIDIS) viene implementando desde el 2017 el programa “Mi Abrigo”, el cual tiene como finalidad mejorar las viviendas para asegurar una temperatura adecuada durante las heladas. El acondicionamiento térmico de las viviendas rurales sigue un modelo estándar de aplicación de técnicas de aislamiento y retención del calor en las paredes, pisos, ventanas y puertas. El presente estudio busca contribuir a este proceso, identificando oportunidades de mejora de los aspectos técnicos y logísticos en el acondicionamiento de viviendas, a fin de lograr una mayor eficiencia del programa. El estudio propone nuevos criterios y conceptos para responder mejor a la diversidad de realidades que se encuentran en los territorios altoandinos. Entre las soluciones propuestas se incluye el empleo de técnicas y materiales locales para reducir costos y tiempos, por ejemplo, ichu, cabuya o totora como aislantes térmicos en paredes. También se considera la utilización de revoques de barro, en lugar de yeso y cemento, que tiene un mejor comportamiento térmico y mantiene la cualidad paisajística. Este estudio ofrece una serie de alternativas tecnológicas para cada componente de la edificación que se pueden combinar de manera modular, pudiendo combinar tecnologías modernas con técnicas ancestrales de construcción y aislamiento térmico. El mejoramiento de las condiciones térmicas de las viviendas rurales contribuye a su vez a mejorar la protección de la salud y la calidad de vida de las familias más vulnerables.
Geophysical characterization of a potentially active fault in the Agua Fría micro-graben, Los Azufres, Mexico
Authors: Aray Castellano Jélime Cecilia , Lacan Pierre , Garduño Monroy Víctor Hugo , Ávila García Jesús , Gómez Cortés Joaquín , Audemard M. Franck A. , Lázaro Mancilla Octavio , Bandy William
Published: October 2021

In this study, three geophysical techniques were used to identify, localize, and characterize a partly blind fault in the Llano Grande basin within the Agua Fría Graben. This tectonic basin is located in the Los Azufres Volcanic Complex, one of the major silicic volcanic centers in the Trans-Mexican Volcanic Belt. The 1 km wide Agua Fría graben could be considered as an analogous of the larger graben structures bounded by the Morelia-Acambay Fault System. Since it is filled by recent sediments, it represents a challenge for the recognition and characterization of active faults that lack clear surface expression. Newly collected magnetic data led to the identification of lineaments interpreted as structural discontinuities. Ground penetrating radar and seismic refraction surveys were carried out across one of these magnetic lineaments crossing the basin to characterize the nature and geometry of the inferred discontinuity. The ground penetrating radar profiles allowed the identification of buried deformational structures interpreted as the northern segment of the Agua Fría fault. The subsurface reflectors displaced 1 to 1.5 m by the fault indicate that this structure is potentially active. The opening of trenches based on these results makes it possible to confirm the interpretation of the geophysical profiles, to discuss the precision of the data and to validate their use for such studies. On seismic refraction profiles, the deformation zones are related to low P-wave velocity zones. These geophysical studies demonstrate the potential of such techniques to locate faults in the subsurface, partially characterize the width of the fault zone and the associated displacement within the uppermost of the subsurface. Our results may be applied to define ideal sites for paleoseismic excavations which are essential for the identification and description of historical and prehistoric earthquakes, and thus, for the characterization of the local seismic hazard.
Evidencias paleosísmica y arqueosísmica de la simbología Posclásica Tardía P’urhepecha en Michoacán (México). ¿Primeras señalizaciones sísmicas de la historia?
Authors: Rodríguez-Pascua Miguel Ángel , Garduño-Monroy Víctor Hugo , Israde-Alcántara Isabel , Perucha María Ángeles , Pérez-López Raúl , Giner-Robles Jorge Luis , Sánchez Jiménez Nieves
Published: October 2021

Las culturas mesoamericanas prehispánicas del altiplano mexicano, y en concreto los imperios P’urhepecha y Azteca (Periodo Posclásico tardío, 1300 – 1500 AD), experimentaron grandes terremotos destructivos que dejaron una impronta en su sociedad y determinó tanto sus ritos espirituales como su urbanismo. Este trabajo describe varios paleoterremotos que los P’urhepechas experimentaron en la ribera del Lago de Pátzcuaro a partir de técnicas de paleosismología. Se constata que grandes bloques basálticos asociados a los ritos religiosos P’urhepechas fueron colocados en el bloque hundido de dos grandes rupturas superficiales de origen sismogénico que afectaron a la geografía del propio lago. Los P’urhepechas colocaron dos grandes bloques de roca basáltica de más de 1 m3 de volumen y con su superficie tallada para utilizarlos en sus ritos espirituales. Los estudios paleosísmicos sugieren que ocurrieron varios terremotos de magnitud entre M 6,5 y M 7 con ruptura superficial y probablemente con una migración de la orilla del lago (Garduño-Monroy et al., 2009 y 2011a). Además, este trabajo demuestra que dichos terremotos se suceden desde el periodo Preclásico (3000 BP). En tiempos posteriores, durante la conquista española, se esculpió en el bloque basáltico una gran cruz cristiana de tipo maltesa que correspondería con el proceso de evangelización cristiana a lo largo del siglo XVI en la zona de Michoacán, lo que afianza el significado espiritual de dichos bloques. En cualquier caso, estamos ante una de las manifestaciones humanas más antiguas de los efectos de los sismos sobre culturas ancestrales.
Evidencias de neotectónica en el sector interno de la Faja Plegada y Corrida de Malargüe, valle del río Grande, Mendoza, Argentina
Authors: Winocur Diego A. , Benítez Anahí , Barbero Iván
Published: October 2021

En este trabajo se exponen rasgos del paisaje que permiten inferir actividad neotectónica en el sector interno cordillerano (35º30’S - 70º15’O). A partir del trabajo de campo, se reconocieron depósitos lacustres caracterizados por arenas, limos y arcillas laminados, que registran sedimentación en una paleolaguna desarrollada durante un estadio del Último Máximo Glacial. La edad de los depósitos es interpretada a partir de su disposición en relación con una morena frontal atribuida a la última glaciación. A partir de la realización de un perfil sedimentario en los sedimentos lacustres se describen e interpretan estructuras asociadas a deformación en sedimentos blandos junto con fallas de origen tectónico, una de las cuáles, denominada falla El Seguro, presenta rechazo de 4 m medidos a lo largo del plano de falla y movimiento inverso. Los atributos morfológicos permiten interpretar que la deformación reconocida fue disparada por eventos sísmicos, proponiendo que la actividad asociada a dicha falla puede ser una posible fuente. La frecuencia y distribución de depósitos de remoción en masa mayores a 0.1 km2 y su ubicación respecto de las estructuras principales conocidas, y estructuras con actividad sísmica reciente y actual, permiten identificar una acumulación de deslizamientos en torno a éstas. Así, si bien han estado favorecidos por la litología, inclinación, pendientes y relajamiento pos-glacial del valle analizado, su disposición en el paisaje sugiere que la actividad sísmica precipitó el desarrollo de los movimientos en masa de mayor volumen. Finalmente, se propone que la actividad tectónica ha tenido lugar durante el Pleistoceno-Holoceno inclusive, con sismos de magnitud Ms ≥ 6, de manera que la falla El Seguro podría ser una falla activa en la actualidad.
Critiquing Ontario’s Childcare Policy Responses to the Inextricably Connected Needs of Mothers, Children, and Early Childhood Educators
Authors: Richardson Brooke , Powell Alana , Langford Rachel `
Published: October 2021

The COVID-19 pandemic has exposed the chronically inadequate childcare infrastructure in Canada and across much of the world. Government responses have been many and varied within and between countries, provinces, municipalities, and local communities. Embracing a feminist ethics of care lens, this paper examines how the needs of mothers, children, and early childhood educators were recognized as interconnected (or not) in Ontario’s childcare policy discourse and action throughout the pandemic. Findings indicate that children were rarely discussed beyond being a “burden” to their parents (and therefore the economy) while children’s and early childhood educators’ childcare experiences and needs were largely absent in any policy discussion or action. The only group to receive widespread media and political attention were mothers, whose ongoing struggle to “balance” paid and unpaid (care) work became heightened and visible en masse throughout the pandemic. We offer overarching observations and recommendations for childcare policy stakeholders and actors as we look to build new possibilities for Canadian childcare beyond the pandemic.
To the Question about Motivation in the Professional Becoming of student
Authors: Molchanova N. V.
Published: October 2021

In the article the analysis of intercommunication between the estimation of different components of institution of higher learning environment is presented and by the estimation of professionally‑ personality height of students. Two strategies of the professional becoming of students are educed with different motivation.
Classroom Process and Learning Achievement of MLE and Non-Mle Schools of Keonjhar District
Authors: Dr. Ranjan Kumar Rout
Published: October 2021

NEP, 2020 remarks that a person educated in one’s language, culture, and traditions is not a detriment but indeed a huge benefit to educational, social, and technological advancement. Understanding the relevance of mother tongue as the medium of learning for linguistic minority groups, government of Odisha has introduced Multi Lingual System of Education as a pilot basis from 2006-07 with a view to achieve equitable quality education. To know the ground realities of MLE programme for Juanga learners in terms of classroom process, assessment process and achievement levels the present study was undertaken. The present study comes under the purview of cross‐sectional research design and undertaken through case study approach.  Through purposive sampling technique the researcher selects one MLE and one Non-MLE school from Banspal block of Keonjhar district in Odisha. From these schools all class-III tribal learners and all the teachers were selected purposefully and incidentally respectively.  Three self made tools i.e. Classroom Observation Schedule, Achievement Test (Juanga Language) and Achievement Test (Odia Language) were used in this study.  The data was analysed and interpreted through qualitative data analysis technique, percentage analysis technique. The present study reveals that introduction of MLE in the tribal school has created a good classroom climate in the school so far as activeness of the learners, classroom management, and presentation of learning experiences is concerned. The achievement level in language is upto mark in MLE schools due to the effect of MLE programm. 

Key words: Classroom Process, Learning Achievement, Multilingual Education
Quality Culture-Oriented Leadership Model Head of Islamic State Senior High School in Palu
Authors: Taufik
Published: October 2021

Three schools implementing a quality culture-oriented leadership model are MAN 1, MAN 2, and MAN Insan Cendekia in Palu. This research aims to find and explain the development of culturally oriented leadership models in improving education quality in Islamic schools in Palu. This research has been conducted through interview techniques, documentation, and observations in which data results are studied and analyzed based on leadership theory. The result of this research finding is that the successful application of quality culture-oriented leadership occurs because the head of Islamic schools can develop three models of leadership in their schools: (1) transactional leadership model oriented to the ability of the head of Islamic school in meeting the needs of teachers, education staff, and students to improve the progress and quality of Islamic school education; (2) transformative leadership model that provides the understanding of the head of Islamic school on the school’s need and appreciation for the efforts made by education implementers to advance the education in Islamic school; (3) Visionary leadership model that can make Islamic school can realize the achievements of their vision well in the process of organizing education. Through these three models, quality-oriented leadership was developed in MAN 1, MAN 2, and MAN Insan Cendikia in Palu.
Strategic Purchasing and Performance of Public Procurement in Rwanda
Authors: Euthyme Mudaheranwa
Published: October 2021

The purpose of the study was to examine the relationship between strategic purchasing and performance of public procurement, a case of Rwanda Basic Education Board (REB). The specific objectives were to examine the relationship between cost management and performance of public procurement at REB, to establish the relationship between supplier relationship and performance of public procurement at REB, to establish the relationship between records management and performance of public procurement at REB and to examine the relationship between procurement plan management and performance of public procurement. A cross sectional data was collected from a sample of 112 staff from REB and its supplier/contractors in the period 2016-2018.  Data was collected using a close-ended questionnaire. The literature review was based on the institutional, network and agency theories. Empirical literature on variables studied in this study were also reviewed.

The results on the first objective indicated a positive relationship between cost management and performance of public procurement at REB. For the second objective, the results indicated a positive relationship between supplier relationship and performance of public procurement at REB. For the third objective, the results indicated the positive relationship between records management and performance of public procurement at REB and for the fourth objective, the findings indicated a positive relationship between procurement plan management and performance of public procurement. Findings also revealed that among the predictors procurement plan management was noted to be a better predictor of relationship. 

The researcher recommends Government of Rwanda to give important place in public procurement items that were produced/ manufactured in Rwanda. Apart from enhancing made in Rwanda, the researcher recommends the government of Rwanda to review the public procurement process. The researcher recommends that trainings in procurement planning shall be offered to procurement officers and other people in connection with public procurement. For REB, the researcher recommends them to put in place strategic purchasing policy which shall determine why where, when and what services, works and goods to be purchased. The researcher also recommends REB to review the way archive for tender documents is maintained.
DETERMINATION OF TITANIUM AND ZIRCONIUM IN ALUMINUM ALLOYS BY ATOMIC EMISSION SPECTROMETRY WITH INDUCTIVELY COUPLED PLASMA
Authors:   Federal State Unitary Enterprise «All-Russian Scientific-Research Institute of Aviation Materials» of National Research Center «Kurchatov Institute», Karachevtsev F.N. , Dvoretskov R.M. ,   Federal State Unitary Enterprise «All-Russian Scientific-Research Institute of Aviation Materials» of National Research Center «Kurchatov Institute», Zagvozdkina T.N. ,   Federal State Unitary Enterprise «All-Russian Scientific-Research Institute of Aviation Materials» of National Research Center «Kurchatov Institute», Slavin А.V. ,   Federal State Unitary Enterprise «All-Russian Scientific-Research Institute of Aviation Materials» of National Research Center «Kurchatov Institute»
Published: October 2021

A method is proposed for the determination of titanium and zirconium by inductively coupled plasma atomic emission spectrometry in aluminum alloys. Analytical lines of titanium and zirconium free from other elements significant spectral overlaps are selected. The selection of the sample preparation method was carried out, namely – dissolution in concentrated nitric acid. Studies of the metrological characteristics of the technique were carried out: for titanium and zirconium contents from 0.05 to 0.3 % of the mass. the accuracy index is no more than 5 % rel., which fully ensures the possibility of analytical control of the content of titanium and zirconium in products from aluminum alloys.
COMPARISON OF RUSSIAN AND INTERNATIONAL STANDARDS WHEN CONDUCTING THE MAGNETIC POWDER METHOD OF NON-DESTRUCTIVE TESTING
Authors:   Federal State Unitary Enterprise «All-Russian Scientific-Research Institute of Aviation Materials» of National Research Center «Kurchatov Institute», Lednev I.S. , Generalov A.S. ,   Federal State Unitary Enterprise «All-Russian Scientific-Research Institute of Aviation Materials» of National Research Center «Kurchatov Institute»
Published: October 2021

The analysis of the requirements of domestic and foreign standards for the magnetic particle testing (MPT) method is presented. Their advantages and disadvantages are highlighted, as well as fundamental differences in the technology of control, of which the main one is the use of the remanent magnetization method in the practice of domestic MPT. The methods of remanent magnetization and the applied magnetic field are compared. Based on the analysis, it was concluded that for the control of particularly responsible products during the MPT, GOST 56512-2015 should be followed.
INVESTIGATION OF THE RADIO TECHNICAL CHARACTERISTICS OF TWO-MATRIX COMPOSITES BASED ON TEMPLATES PRODUCED BY 3D-PRINTING
Authors:   Federal State Unitary Enterprise «All-Russian Scientific-Research Institute of Aviation Materials» of National Research Center «Kurchatov Institute», Sorokin A.E. , Belyaev A.A. ,   Federal State Unitary Enterprise «All-Russian Scientific-Research Institute of Aviation Materials» of National Research Center «Kurchatov Institute», Kraev I.D. ,   Federal State Unitary Enterprise «All-Russian Scientific-Research Institute of Aviation Materials» of National Research Center «Kurchatov Institute», Larionov S.A. ,   Federal State Unitary Enterprise «All-Russian Scientific-Research Institute of Aviation Materials» of National Research Center «Kurchatov Institute»
Published: October 2021

In this work, we studied the radio technical characteristics of two-matrix composites made by combining thermoplastic, modified carbon nanotubes (CNTs), templates with a network and figured structure, and polymer compositions based on epoxy resin containing iron powders and CNTs. It has been established that the implemented approach makes it possible to flexibly regulate the radio-technical properties of a two-matrix composite material by varying the structure and size of the cells of the thermoplastic template and the type of filler for the polymer composition based on epoxy resin.
MATERIALS BASED PHENOLFORMALDEHYDE OLIGOMERS OF RESOL AND NOVOLAC TIPES (review). Part 1
Authors:   Federal State Unitary Enterprise «All-Russian Scientific-Research Institute of Aviation Materials» of National Research Center «Kurchatov Institute», Zastrogina O.B. , Sinyakov S.D. ,   Federal State Unitary Enterprise «All-Russian Scientific-Research Institute of Aviation Materials» of National Research Center «Kurchatov Institute», Serkova E.А. ,   Federal State Unitary Enterprise «All-Russian Scientific-Research Institute of Aviation Materials» of National Research Center «Kurchatov Institute»
Published: October 2021

Currently, compositions based on a mixture of phenol-formaldehyde resins of the resole and novolac types are of considerable interest. In the first part of the review examples of the use of resole-novolac phenol-formaldehyde resins in adhesive compositions, prepregs, fiberglass plastics and refractory masses are given. The advantages of using resole-novolac compositions in comparison with resole and novolac phenol-formaldehyde oligomers by increasing the physical and mechanical characteristics, fire resistance and fireproof properties are shown.
EFFECT OF MODIFYING ZIRCONIUM OXIDE ADDITIVE ON THE PROPERTIES OF CERAMIC MATERIALS OF THE Y2O3–Al2O3–SiO2 SYSTEM OBTAINED BY THE SOL-GEL METHOD
Authors:   Federal State Unitary Enterprise «All-Russian Scientific-Research Institute of Aviation Materials» of National Research Center «Kurchatov Institute», Lebedeva Yu.E. , Shchegoleva N.E. ,   Federal State Unitary Enterprise «All-Russian Scientific-Research Institute of Aviation Materials» of National Research Center «Kurchatov Institute», Voronov V.A. ,   Federal State Unitary Enterprise «All-Russian Scientific-Research Institute of Aviation Materials» of National Research Center «Kurchatov Institute», Kovaleva V.S. ,   Federal State Unitary Enterprise «All-Russian Scientific-Research Institute of Aviation Materials» of National Research Center «Kurchatov Institute», Chainikova A.S. ,   Federal State Unitary Enterprise «All-Russian Scientific-Research Institute of Aviation Materials» of National Research Center «Kurchatov Institute»
Published: October 2021

The effect of the modifying additive ZrO2 on the rheological properties, the processes of structure and phase formation of the compositions of the Y2O3–Al2O3–SiO2 system obtained by the sol-gel method has been investigated. It was found that the temperature range of crystallization of the compositions of the Y2O3–Al2O3–SiO2 system with the addition of ZrO2 is 1020–1270 °C and with an increase in the concentration of zirconium oxide, the amount of the main crystalline phase of yttrium pyrosilicate (β-Y2Si2O7) decreases and the concentration of the zirconium-containing phase – the tetragonal modification of zirconium oxide and zirconium silicate ZrSiO4 -increases.
The heroes of the pandemic
Authors: Barreneche Sebastian Moreno
Published: October 2021

Besides its impact on health, economics, and politics, the COVID-19 pandemic was the source of phenomena of a discursive nature, specifically regarding the solutions found by societies to make sense of the crisis caused by the uncontrolled spread of the virus. This article analyzes from a socio-semiotic perspective the construction process of the collective identity of “the healthcare workers” during the pandemic. After generally introducing semiotics as the discipline interested in meaning-making and signification, the article studies four semiotic mechanisms present in the discursive construction of any collective identity. It then moves on to its main goal: the analysis of the functioning of those four mechanisms in the specific case of “the healthcare workers,” a collective identity that, since the beginning of 2020, has been central in the narratives that emerged around the COVID-19 pandemic. As such, it should render visible the semiotic mechanisms of segmentation, actorialization, generalization, and axiologization.
All models are wrong, but some are useful: mathematical models at the time of Covid-19
Authors: Buiani Roberta
Published: October 2021

Epidemiological models have been crucial tools throughout all stages of the 2020-21 Coronavirus pandemic: using promptly available or historical data, they have studied and tried to anticipate its progression, providing valuable guidelines for public health officials, policymakers, and other medical and non-medical audiences. While useful, models are not designed to be infallible, and for this reason, they have been frequently subject to criticism. There is a discrepancy between what models do and how they are presented and perceived. Several juxtaposing factors, including current beliefs about scientific reliability, the role of quantification, and the epistemic values grounding the field, are at the core of this discrepancy. While scientific literacy may play a role in addressing this discrepancy, analyzing and becoming better aware of these factors may suggest long-term strategies to address, acknowledge, and communicate the pandemic’s inherent complexity and stochastic qualities.
Re-Creating Awareness of Traditional Leafy Vegetables in Communities
Authors:   ARC-Roodeplaat Vegetable and Ornamental Plant Institute, H.J Voster Ineke , Willem Jansen van Rensburg , J.J.B Van Zijl , L Venter Sonja
Published: October 2021

Research and extension in South Africa has been labelling traditional leafy vegetables as weeds since the 1960s when they started encouraging households to produce food seen in the shops. This negative perception has led to an unwillingness to use and conserve these ‘poverty foods’, as many community members have labelled them. The status of these crops needed to be improved to help people realise the importance of these crops in their daily diet. Awareness activities in six communities made use of production training sessions in seven schools and eight community gardens, discussion groups, garden competitions, cooking competitions, recipe collection, awareness days, local resource collection activities, participatory selection and a radio talk. Discussions about use and conservation status of these crops during the data collection phase stimulated discussions on various aspects of these crops and caused an increased awareness about the poor conservation status within the communities, leading to the appointment of keepers of specific seed. The local resource collection efforts and gene bank actions caused community members to appreciate their natural resources more and emphasised the vulnerability of the crops, and their important role in keeping the biodiversity available for them and for future generations. In an effort to create awareness of the traditional plants at all levels within the community, schools (where possible) and community gardens were targeted during the training and awareness campaigns. The awareness campaigns culminated in a school garden and community garden competition, as well as a cooking competition. Participatory selection was used to expose the community members to new crops and to variations in the crops that they know. Community evaluation of these crops created a better understanding for researchers and community members, leading to improved cooperation. A noticeable increase in demand for seed and training on production methods was the result of the awareness activities within the communities.
Nutrition Evaluation of Faidherbia albida Seeds and Pulp as Source of Feeds for Livestock
Authors:   Usmanu Danfodiyo University, L. G. Hassan , Umar Kabiru J , H Yuguda
Published: October 2021

The present study was conducted to find out the nutritional values of Faidherbia albida (Acacia albida) seeds and pulp to be used as components in livestock feeds. The samples were randomly collected from various trees during the period of January to February. The samples were separated, milled and analysed for proximate components and mineral elements using standard methods of the AOAC. Proximate analysis results showed that the concentrations of tested parameters in the seed and the pulp respectively on % dry matter were: dry matter (90.0 + 0.4; 93.3 + 0.2), ash (3.3 + 0.1; 6.7 + 0.1), crude protein (20.6 + 1.2; 19.5 + 0.4), crude lipid (13.3 + 0.1; 3.3 + 0.1), crude fibre (6.7 + 0.1; 13.3 + 0.2), and available carbohydrate (46.1 + 0.1; 50.53 + 0.7). The results indicated that the contents of dry matter, ash, crude fibre and available carbohydrate were significantly higher (p < 0.05) in the pulp compared to the seed while the crude lipid values, however, were significantly higher (p < 0.05) in seeds compared to pulp. Crude protein values did not differ significantly (p > 0.05) between treatment means of seeds and pulp. The estimated energy value was significantly higher (p < 0.05) in the seed (1,682 kJ/100g) compared to pulp (1,363kJ/100g). The results for the mineral analysis indicate that the seeds and pulp contain appreciable concentrations (mg/100g) of Ca (136.6 + 5.0; 55.0 + 5.0); Mg (135.0 + 2.0 + 5.0; 84.7 + 3.0); P (26.6 + 0.9; 29.6 + 0.7); K (144.5 + 0.2; 88.8 + 0.1); Na (12.5 + 0.1; 6.8 + 0.1); Fe (6.2 + 0.2; 8.8 + 0.3); Cu (5.8 + 0.1; 2.5 + 0.1) and Zn (8.0 + 0.1; 3.0 + 0.1). Mineral elements in seed are significantly higher (p < 0.05) compared to that of pulp in most cases. From the results it can be inferred that the seed and pulp of F. albida could be an important source of feed ingredient for livestock if properly harnessed.
Economic Analysis of Cluster Bean [Cyamopsis tetragonoloba (L.) Taub] Entrepreneurs in Karnataka
Authors: Ashoka N. , Raju R. , Ravi Y. , Harshavardhan M. , Hongal Shivanand , Pushpa P.
Published: October 2021

Background: Karnataka is predominantly known for cluster bean production. The evidences claims that the cluster bean production is not a profitable option and has many constraints, which hinders farmers to take up this enterprise. The current study aims to analyze the growth in area, to forecast seed demand and to work out the economics of cluster bean production in Karnataka. Methods: The current study was based on the field survey conducted in Karnataka during 2019-20, to collect the primary data from cluster bean entrepreneurs. The study has also used secondary data for analysis. Four major districts in Karnataka were selected for the study, based on the maximum area and highest production. From each district, 30 farmers were randomly selected for collection of primary data, constituting a total of 120 farmers. The Compound Annual Growth Rate and cost-returns techniques were employed for data analysis. Result: The study indicated that Karnataka has registered a declined trend of 3.12 per cent per annum and the total estimated area under cluster bean would be 2,720 ha during 2021-22. Hence, the seed industry should cater seed demand to the tune of 544 quintals for the said period. Total cost of cultivation was worked out to be ₹ 35,176 per acre. The study emphasize that this enterprise provides higher gross and net returns to the tune of ₹ 70,851 and ₹ 35,675 per acre, respectively, with the Benefit-cost ratio of 2.01, indicating its profitability. Lack of availability of High Yielding Varieties/hybrid seeds and high wage rate were the major constraints notified in cluster bean enterprise.