bluuebunny/crossref_metadata_2025 huggingface dataset:
Using the Relative-Speed-of-Processing to Explain the Shielding Function of Task Rules
Authors: Huang Liang , Li Bingxin , Yan Panjie , Han Chengyang , Li Xiangqian
Published: May 2021

In choice reaction tests, applying task rules instead of responding associatively can help participants shield against interference from distractors. However, the mechanism of such shielding functions of task rule remains unclear. In four experiments, we showed that the shielding function can be explained by the Relative-Speed-of-Processing theory. Experiment 1A demonstrated that applying task rules can reduce the relative processing advantage of the distractor by facilitating the target processing speed; therefore, eliminate the interference effect. In Experiment 1B, and 1C, we manipulated the relative processing advantage between targets and distractors by adjusting the temporal sequence of the presence of the targets and distractors: stimuli appeared first would gain more relative processing advantage. The results showed that when the relative processing advantage of a distractor was large enough, applying task rules cannot help participants shield against the interference. In contrast, when the relative processing advantage of the distractor was small, even without applying task rules, participants were not interfered by the distractor. In Experiment 2, we directly manipulated the processing speed of the targets and the distractor, so that participants who responded associatively would facilitate target processing speed, but participants who applied task rule would not. Contrary to previous studies but in line with our prediction, in Experiment 2, only participants who applied task rule had interference effects. Our results suggested that applying the task rule might not help us shield against the interference directly. Instead, applying task rules facilitate the target processing speed which reduces the relative processing advantage of the distractor and eliminates the interference.
Unique Prevalence of the Better-than-average Effect in the Moral Domain under Self-protection among Young Japanese Adults
Authors: Ding Yi , Sugiura Motoaki
Published: May 2021

The better-than-average effect (BTAE) is considered uniquely prevalent in the moral domain due to its widespread occurrence and independence from psychobehavioral characteristics. However, it is unclear whether it manifests in the contexts of self-enhancement and self-protection, and over a wide range of psychobehavioral characteristics. We examined the BTAE in four domains based on combinations of social values and motivations and explored the relationship between the four domains and 22 characteristics. The results reveal that the BTAE existed in the moral domain in the presence of the self-protection motive; moreover, it was not associated with the characteristics. This study demonstrated that the BTAE is uniquely prevalent in the moral domain in the context of the self-protection motive, potentially reflecting sociocultural dynamics.
Why is scaling up models of language evolution hard?
Authors: Woensdregt Marieke , Spike Matthew , de Haan Ronald , Wareham Todd , van Rooij Iris , Blokpoel Mark
Published: May 2021

Computational model simulations have been very fruitful for gaining insight into how the systematic structure we observe in the world’s natural languages could have emerged through cultural evolution. However, these model simulations operate on a toy scale compared to the size of actual human vocabularies, due to the prohibitive computational resource demands that simulations with larger lexicons would pose. Using computational complexity analysis, we show that this is not an implementational artifact, but instead it reflects a deeper theoretical issue: these models are (in their current formulation) computationally intractable. This has important theoretical implications, because it means that there is no way of knowing whether or not the properties and regularities observed for the toy models would scale up. All is not lost however, because awareness of intractability allows us to face the issue of scaling head-on, and can guide the development of our theories.
Powerful sequential designs using Bayesian estimation: A power analysis tutorial using brms, the tidyverse, and furrr
Authors: Elsey James
Published: May 2021

Producing compelling and trustworthy results relies upon performing well-powered studies with low rates of misleading evidence. Yet, resources are limited, and maximum sample sizes required to achieve acceptable power in typical fixed N designs may be disconcerting. ‘Sequential’, ‘optional stopping’, or ‘interim’ designs – in which results may be checked at interim periods and a decision made as to whether to continue data collection or not – provide one means by which researchers may be able to achieve high power and low false positive rates with less of a resource burden. Sequential analyses have received considerable attention from both frequentist and Bayesian hypothesis testing approaches, but fewer approachable resources are available for those wishing to use Bayesian estimation. In this tutorial, we cover a general process for performing power analyses of fixed and sequential designs using Bayesian estimation – simulating data, performing regressions in parallel to reduce time requirements, choosing different stopping criteria and data collection sequences, and calculating observed power and rates of misleading evidence. We conclude with a discussion of some limitations and possible extensions of the presented approach.
Intent to Vaccinate Children against COVID-19: Low levels of trust in public health agencies trust across rural communities
Authors: Shacham Enbal , Little Germysha , Scroggins Steve , Fredman Avery , Wray Ricardo , Charney Rachel
Published: May 2021

Background: A COVID-19 vaccination for children is positioned to be a critical resource in the pandemic-prevention effort. However, studies have shown hesitation towards COVID-19 vaccination uptake and a lack of trust in government agencies; putting children at risk for not receiving preventative medical care. The purpose of this study was to determine the association between trust in public health agencies and parental intention to vaccinate their children against COVID-19. Methods: Residents of a Midwestern state who reported being parent/guardian of one or more child, aged <18 living at home, were recruited to participate in a cross-sectional online survey conducted during September-October 2020 (n=238). Participants were asked their level of trust in both state and local public health departments and if they planned on vaccinating their children against COVID-19. Resident geography, rural, suburban, and urban, was categorized using definitions from the Health Resource Services Administration (HRSA) and matched to participant county of residence. Descriptive and binomial logistic regression analyses were conducted to predict probability of vaccine intent for children.Results:. Among participants, 132 (55.5%) reported intention to vaccinate their children against COVID-19. Factors that were found to significantly decrease probability of vaccinating child were being a rural resident and lower level of trust in both state and local public health agencies. Discussion: Results from this study highlight the importance of addressing public health agency mistrust among individuals, regardless of geography, to assure more equitable vaccine delivery. Further, special focus may be needed for those living in more isolated, less populated areas, where a higher level of trust may be needed before parents vaccinate their children.
Implementing Conversational AI in Libraries: A Practical Approach
Authors: Panda Subhajit , Chakravarty Rupak
Published: May 2021

The outbreak of the present pandemic Coronavirus (official designation COVID-19 or 2019-nCov) forced us to adopt “new normal” and give a greater use and reliance on virtual space than ever before with physical spaces. In the context of the library, shifting of the user assistant programme from physical to virtual face a problem in this transition. This paper based on the probable solution with the use of practical implementation of conversational AI i.e. “Bot” or “Chatbot” to fulfil user needs 24*7 without human intervention. A chatbot is a computer program that can simulate conversation and interact with humans — spoken, written or both. It acquired a set of pre-programmed commands and continue learning based on the inputs it receives. This paper gives a general overview of conversational AI, Chatbot and its multitasking features and a practical overview of the implementation of one of the famous chatbot provider Kore.ai using its free to use plan. Additionally, the paper explained the requirement of the present situation & long term benefits of chatbot in the library.
The Maturity Level of IT Governance Based On Cobit Framework 4.0 on DS and ME Domains at PT. Milano Mitra Abadi
Authors: Sunarsa Teofilus
Published: May 2021

Milano Mitra Abadi is a retail company engaged in the fashion and shoes in the business process is not separated from the use of IT. IT is an effective step taken by the company to develop its business in order to provide a level of efficiency and effectiveness in the management of sales data or inventory data with good and orderly. One of the tools used for IT Governance is COBIT (Control Objectives for Information and Related Technology) is a standard model that provides documentation of best IT management practices that can help management and user To bridge the gap between business risks, control needs, and technical problems. The analysis for the maturity level is done by comparing the level of maturity that exists at the moment with the level of maturity. The level of maturity that is intended on the basis represents the level of maturity of the industry average at level 3. Current level of maturity (current maturity level) for each process that is in the domain of Deliver and Support and Monitor and Evaluate is almost entirely at level 2. This can be said that the process of IT governance in PT. Milano Mitra Abadi has been done but has not been running optimally, has a pattern that is repeatedly done in conducting activities management related to technology governance Information, but its existence has not been well-defined and formal so that there is still an inconsistency. It is recommended that the evaluation of IT can be done routinely every specific time period (periodically) so that the desired level of maturity can be achieved and performed by a specific unit.
Analysis and Design of System Information in KPR Decision Making Using AHP and SAW methods (Study Case: PT. Bintang Baru)
Authors: Meylinda Nanda Aristantiyo , Daniawan Benny
Published: May 2021

In this era, the development of information technology is so fast that it cannot be looked away. This development of information technology is going to affect many kinds of fields, including developer. The point of this development is to help the work done by the people become easier. One of its benefit is in decision making. Decision mistakes is one of the general problems that usually happened in decision making. A system will be made with the purpose to ease the decisions making process through methods. The methods are Analytical Hierarchy Process (AHP) as weight calculation and Simple Addictive Weighting (SAW) as an alternative calculation media. In this system there are 5 criteria which are: non-fixed income, living cost, age, SPT Pph Ps. 21 for credit and paycheck. There are 11 alternative that can be used as a consideration for the manager. By using AHP method which has a consistent ratio reaching 96,62% and SAW, the selection process is going to be faster than it used to be, helping the Manager in making the decision also lessen the use of space and paper
Students’ Awareness towards Climate Change: A Study of Climate Change Effects on Human Health in Nepal
Authors: Gautam Bhawana , Mandal Punam Kumari , Yangden Namita
Published: May 2021

Climate change and its impact on human health and awareness constitute a set of complex and serious consequences to be tackled by an individual country. It is not merely an environmental issue, but it is also a threat that goes beyond the national borders. The purpose of this study is to assess the awareness on effect of climate change on human health among the secondary level students of Biratnagar. The research design was descriptive cross-sectional and data was collected from 110 samples through the census method using the semi-structured self-administered questionnaire. Among the respondents, 84.5% knew that climate change can be prevented. Moreover, 50.9% perceived that climate change is an unbreakable process; 77.3% of them perceived climate change is the cause of new disease; and 81.8% of them are concerned about preventing the effects of climate change on human health. Among the respondents, 10% had adequate awareness. The study concluded that half of the secondary level students have inadequate level of awareness on effects of climate change on human health in Biratnagar. It is recommended that awareness should be increased by involving them in the project work activities and reinforcing the component of curriculum.
Opinions of Investors on Nepal Stock Exchange Limited (NEPSE) Online Trading System
Authors: Vaidya Rashesh
Published: May 2021

Nepal Stock Exchange Limited (NEPSE) is only a secondary market in Nepal. After almost three decades of its establishment, the NEPSE trading system turned fully automated on January 17, 2021. The new system is named NEPSE Online Trading System (NOTS), which was launched on November 6, 2018. After the breakout of the COVID-19, the NOTS users using NEPSE online Trade Management System (TMS) and Uniform Resource Locator (URL) increased due to the nation-wide lockdown as well as the compulsion from the governing body. Hence, the paper attempts to get opinions from the NOTS users about its features and performance. The paper has taken 300 NOTS users as samples for the survey purpose. The online survey was conducted for the study. A 5–points Likert scale-based questionnaire was forwarded to the potential online traders (investors) through an online platform such as messenger and email. The study has followed descriptive statistics and a one-sample t-test to interpret the collected data from the NOTS users. The study found that there is an issue of the market data display in the NOTS platform, which needs to be addressed as soon as possible. At the same time, the respondents stated that the best parts of NOTS were that it has helped them to specify and customize the securities, price, and volume that one would like to trade on a real-time basis.
The Relationship of Behavioral Factors with Investment Performance of Individual Investors in the Nepali Stock Market
Authors: Kunwar Kripa
Published: May 2021

In recent years, the market anomalies and irrational behavior of investors have influenced the stock market worldwide. The impact of investor behavior on the stock market is more prominent in small and less efficient capital markets. The study is based on the questionnaire survey of 203 investors from Kathmandu and Pokhara. The study uses Exploratory Factor Analysis (EFA) to explore the underlying dimensions of investor behavior employing Principal Component Analysis and Varimax rotation. The suitability of the data for the factor analysis has been examined using KMO and Barlett’s Test of Sphericity. The EFA extracted four factors of investor behavioral dimensions categorized as: heuristics, prospects, market factors and herding effect. The factor scores obtained from the EFA was used to examine the correlation of these behavioral factors with investment performance. The results reveal that behavioral biases like heuristics, prospects, market factor and herding effect are present among individual investors in Nepal. Among the factors, the investment performance of investors is found to be influenced by heuristics and market factors. The heuristic behaviors are found to have the highest and positive influence on the investment performance. Finally, the results depict that following the herd behavior in the market and prospects does not result in the improved investor performance. The findings are helpful to understand the role of investor behavior in the stock market and formulation of appropriate policies that limit the possibility of behavioral biases affecting the stock market adversely.
RIESGO DEL USO DE CREOLINA EN EL TRATAMIENTO DE LAS DIARREAS
Authors: Traviezo-Valles Luis Eduardo
Published: May 2021

Estimado Editor, he leído con interés el artículo de Leyva-López et al. (2020); sobre enfermedades gastrointestinales en turistas de México, donde refieren a Entamoeba histolytica (Schaudinn, 1903) y Salmonella typhi (Salmon, 1885) como los microorganismos más frecuentemente diagnosticados en pacientes con enfermedades gastrointestinales, situación parecida a la presentada en Venezuela, por lo que quisiera agregar un elemento peligroso que se está generalizando en el tratamiento de estas diarreas en algunos países de Latinoamérica y particularmente en Venezuela. Me refiero a la ingestión de Creolina diluida, como amebicida o microbicida intestinal en pacientes con disentería, por lo que quisiera añadir lo siguiente:

La Creolina es un antiséptico fenólico, aceitoso, de acción fungicida, bactericida, antihelmíntico e insecticida (miasis), diseñado para uso “agrícola, veterinario y doméstico”. Es de olor fenólico, coloración marrón oscura, pH 9 y densidad 1,3 g·mL-1 (Silva-Lima et al., 2013; Alcendra, 2017).
NANOBIOTECNOLOGÍA EN EL TRATAMIENTO DE LEISHMANIA SPP.
Authors: Bastidas Pahceco Gilberto Antonio , Bastidas-Delgado Geraldine
Published: May 2021

La leishmaniosis es un importante problema de salud pública por la elevada morbilidad y mortalidad que tiene a nivel mundial con tendencia al aumento de casos y extensión de la infección a distintas latitudes, además es pequeño el número de agentes quimioterapéuticos, alta su toxicidad y reducida su biodisponibilidad, también es reducido éxito de las estrategias de vacunación, es aquí que el diseño de sistemas de liberación de drogas basados en nanotecnología resultan ser una estrategia prometedora en el tratamiento de esta parasitosis. El objetivo del presente escrito fue mostrar información relevante sobre nanotecnología aplicada al tratamiento de la leishmaniosis como herramienta innovadora para el control de esta enfermedad. Por medio de la revisión de la literatura científica en bases de datos a partir de descriptores o palabras clave relacionadas. El escrito se estructuro en cinco secciones para facilitar la lectura y análisis: tratamiento farmacológico aún recomendado y una pequeña introducción a la vacunas contra leishmaniosis, aplicación de la nanotecnología en la salud humana el caso leishmaniosis, aspectos hacia los que se apunta en las nanomedicinas para mejor su efectividad, vacunas contra leishmaniosis en nanotecnología y conclusiones. Se concluye que La nanobiotecnología, específicamente las nanopartículas son una excelente herramienta para introducir el principio activo de las drogas en las células infectadas durante el proceso patológico producido por el parásito de la leishmaniosis.
ALCOHOL, CONSUMO DE DROGAS Y LESIONES EN CHOQUES DE TRÁNSITO Y ATROPELLOS ATENDIDOS EN SALAS DE EMERGENCIA
Authors: Malaga Hernán , Villar Emily , Linares Christian , George Humberto
Published: May 2021

Siguiendo el protocolo regional diseñado por el programa de alcohol y drogas de la OPS (Organización Panamericana de la Salud), se determinó la frecuencia relativa de heridos en choques de tránsito y heridos, que llegaban a un centro de emergencia alcoholizados y/o en drogas. Se escogió el Hospital Nacional Casimiro Ulloa (HEJCU) para el periodo octubre 2018 a julio 2019. La población de estudio fue la de los pacientes que nos dieron el consentimiento informado y el equipo encargado de la toma de muestras, llenaba el formulario ad-hoc y recogía los resultados del alcoholímetro y de drogas. La alta frecuencia de pacientes que no daban su consentimiento revelaría el alto grado de sensibilidad hacia la detección de alcoholizados y drogados existentes en la ciudad, se detectó un 15% de alcoholizados, 5% de consumidores de marihuana, 3% de cocaína y un opiáceo. Se detectó una asociación entre el consumo de alcohol y drogas. Es evidente que al programa de detección de conductores alcoholizados debería incorporar un sistema de detección de drogas, el cual debería ampliarse a peatones.
UN ANÉLIDO MARINO COMO ALTERNATIVA DE TRATAMIENTO PARA COVID-19
Authors: Herrera-Perez Melissa
Published: May 2021

El mundo se está enfrentando a una pandemia causada por la infección viral del coronavirus SARS-CoV-2 que desencadena la enfermedad COVID-19. Actualmente, no se conoce ningún tratamiento específico ni vacuna para contrarrestar los síntomas y afecciones causadas por el virus, pero se están administrando tratamientos antivirales, tratamientos antiinflamatorios, tratamiento inmunomodulador, tratamiento de soporte mecánico, hemático y otros en función del fracaso orgánico. Al enfrentarnos a un nuevo virus los tratamientos empleados han sido combinados, los cuales han generado efectos clínicos secundarios en el paciente. El presente documento se centrará en el tratamiento de soporte mecánico, hemático, donde el paciente se encuentra en estado de deficiencia de oxígeno. Durante esta fase de desarrollo de la enfermedad es donde la hemoglobina extracelular de Arenicola marina (Linnaeus, 1758) puede ser una alternativa tratamiento a través de un trasplante sanguínea al transportar 40 veces más oxígeno que la hemoglobina humana, siendo sus estudios promisorios al poseer un antioxidante natural no induciendo respuestas mutagénicas, inmunogénicas o alergénicas otorgando alta afinidad y cooperatividad en la unión con el oxígeno, alta estabilidad estructural y alta resistencia a la oxidación del  grupo hemo  a diferencia de la hemoglobina humana, conocimiento producto del desarrollo científico tecnológico de la hemoglobina extracelular de A. marina, denominada HM-101 que ha sido purificada y utilizada para la producción de HEMOXYCarrier (HC, Hemarina S.A., Francia), transportador de oxígeno para fines terapéuticos. Para la elaboración de este documento se ha realizado una búsqueda bibliográfica en PubMed y Google Scholar con las palabras coronavirus, COVID-19, o SARS-CoV-2, A. marina y tratamiento, treatment o therapy. Por ello, el presente trabajo informa sobre el conocimiento hemoglobina extracelular de A. marina como potencial aplicación de tratamiento alternativo para el COVID-19, siendo sus ensayos clínicos promisorios como posible sustituyente de la sangre humana y posible tratamiento contra el COVID-19, así como el potencial de desarrollo de investigación científica en diferentes áreas de estudio con anélidos poliquetos, iniciando desde la investigación básica en el Perú.
AFECCIONES MÁS FRECUENTES EN CANINOS EN CLÍNICAS VETERINARIAS DE LIMA, PERÚ
Authors: Ceino -Gordillo Franco , Ortiz-Huaranga Ximena , Castro-Moreno Denisse , Pineda Roberto , Tolentino-Camarena Melany
Published: May 2021

El perro es uno de los animales domésticos más antiguos del mundo y el mejor amigo del hombre. Al igual que nosotros, los perros pueden sufrir diversas enfermedades a lo largo de su vida. Muchas de ellas tienen curación y con un buen sistema de prevención, pueden evitar o minimizar sus efectos. Las enfermedades y afecciones más comunes en caninos observadas en clínicas veterinarias de Lima Perú desde el año 2013 hasta el 2018. Para esto se recolectaron un total de 841 fi chas clínicas de distintas veterinarias de Lima que fueron catalogadas y relacionadas a estas enfermedades. Un total de 269 casos fueron incluídos en el estudio, resultando 65 casos de dermatitis (7,72%), 40 machos y 25 hembras; 59 de fractura (7,01%), 48 machos y 11 hembras; 56 de gastroenteritis (6,65%), 41 machos y 15 hembras; 52 de otitis (6,18%), 44 machos y 8 hembras; y 37 de Demodex Owen, 1843 (4,39%), 27 machos y 10 hembras. Además, estas enfermedades se clasificaron en rangos de edad (0-14 meses, 14 meses-9 años, mayores de 9 años) donde los resultados mostraron una mayor prevalencia en caninos jóvenes y jóvenes adultos (14 meses-9 años) siendo las razas con mayor predominancia de casos el mestizo o cruce (108 casos/40%), Bulldog (15 casos/5,8%), Shih Tzu (15 casos /5,8%), beagle (13 casos /4,8%) y pitbull (12 casos/4,5%), respectivamente. Con el presente estudio se recopiló información acerca de las enfermedades y afecciones más comunes en caninos en Lima, Perú.
DIVERSIDAD FLORÍSTICA DE LOMAS DE LÚCUMO, LIMA, PERÚ
Authors: Madrid-Ibarra Flor de María , Cabanillas-Rodríguez Eugenio Andrés
Published: May 2021

Se presenta la Diversidad florística de Lomas de Lúcumo, ubicada a los UTM 18 L. 295676 Este – 8649730 Sur en el Distrito de Pachacamac, Provincia de Lima, Departamento de Lima, Perú, con  una superficie de 150 ha y una elevación entre 100 y 500 msnm. Se utilizó el método de transectos altitudinales y Evaluación Ecológica rápida (EER) de la biodiversidad presente, recolectando información de la flora silvestre representada por un total de 118 especies distribuidas en 102 géneros y 49 familias. Las familias con mayor diversidad fueron: Asteraceae y Solanaceae con 15 y 9 especies, respectivamente. La vegetación predominante es herbácea y se registraron 23 especies endémicas y cinco especies en estado de conservación. Su registro servirá como fuente de identificación a pobladores, turistas y el ecosistema en su conjunto.
CARACTERÍSTICAS FÍSICOQUÍMICAS EN DIFERENTES GRADOS DE MADURACIÓN DE LOS FRUTOS DE TRES LÍNEAS PROMISORAS DE PIÑÓN Y CALIDAD DE LA EXTRACCIÓN DE ACEITE DE LAS SEMILLAS
Authors: Gallo-Sevillano Gabriela , Ponce Saltos Wilmer , Pincay Menedez Joffre , Viteri Andrés , Fimia Duarte Rigoberto , Zambrano Gavilanes Freddy
Published: May 2021

En este trabajo se evaluó el comportamiento y las características fisicoquímicas de frutos, semillas y aceite extraído de tres líneas promisorias de piñón CP041, CP052 y CP054 con grados de maduración siendo estos: verde claro, amarillo, marrón amarillento y marrón oscuro. Las muestras fueron obtenidas del banco de germoplasma de la Estación Experimental Portoviejo del Instituto Nacional de Investigaciones Agropecuarias (INIAP-EEP), Manabí, Ecuador. En el análisis estadístico se determinó que los   frutos maduros son los que presentaron mayor porcentaje de contenido de aceite siendo la línea CP041 la que presentó mayor contenido. En el porcentaje de semillas en frutos secos la línea CP041 tuvo más rendimiento a diferencia que la línea CP054. En cuanto a las proteínas, la línea CP041 tuvo destaque, en porcentaje de fibra y en humedad CP052 y en porcentaje de cenizas CP054. En la línea CP041 el aceite de los frutos verdes claro tuvo mayor índice de yodo y de índice de saponificación. La viscosidad cinemática en el fruto amarillo fue el más sobresaliente con los demás grados de maduración. Los frutos marrones amarillento presentaron el menor índice de acidez. Cuando los frutos estudiados eran los marrones oscuros existió menor índice de peróxidos y de la densidad relativa de menor magnitud de rangos. Los frutos con mayor contenido de dobles enlaces referente al índice de Iodo fueron los frutos verde claros en la línea CP052, mientras que en la línea CP054 fueron los frutos marrón oscuros. Los frutos secos (marrón oscuro) de la línea CP052 y CP054 alcanzaron un elevado índice de saponificación en relación con los otros grados de maduración. Los valores arrojados en la viscosidad cinemática en los frutos marrón amarillento sobresalen a los otros estados de maduración tanto en la línea CP052 y CP054. En la densidad relativa, tanto en las líneas CP052 y CP054, resalta los frutos verde amarillos en relación con los demás estados de maduración.
POLIFENOLES: SU INGESTA EN FRUTAS Y VERDURAS COMO ACCIÓN PROTECTORA PARA LA SALUD HUMANA POR ESTRÉS ANTE EL COVID-19
Authors: Argota-Pérez George , García-Ceccarelli Jorge A. , Bendezú-Acevedo María D.R. , Chávez-Orellana Haydee , Castillo-Romero Patricia C.
Published: May 2021

Los polifenoles son compuestos del metabolismo secundario en las plantas donde se reconoce su acción en el control contra radicales libres y especies reactivas de oxígeno. El objetivo del estudio fue indicar a los polifenoles y su ingesta en frutas y verduras como acción protectora para la salud humana por estrés ante el Covid-19. Dada la rápida propagación de la pandemia emergente Covid-19, continúa siendo de gran preocupación por la mortalidad que se produce a nivel global y no existe duda sobre el nivel de estrés en la población. Los intentos por aplanar la curva epidemiológica son diversos por cuanto, el Covid-19 no solo podría afectar psico-mentalmente sino, algunas enfermedades no trasmisibles, quizás puedan debutar. Ante la grave situación, desde lo axiológico una pregunta se plantea: ¿el consumo diario de frutas y verduras en los patrones de dietas pueden generar desde lo metabólico algún impacto potenciador en la inmunología contra el COVID-19?
La incidencia de la teoría, la filosofía y la ciencia en la enseñanza de la arquitectura
Authors: León Távara Walter
Published: May 2021

La enseñanza de la educación superior en general y la arquitectura en particular, así como la cultura arquitectónica, son necesarios y debemos comprender la incidencia de la teoría, la fi losofía y la ciencia respecto a la enseñanza de la arquitectura. La calidad de un ambiente afecta e infl uye en la conducta delas personas. Hasta hoy, los modelos pedagógicos de la enseñanza se mantienen en la falsedad ingenua y en el prototipo de imágenes y visiones pasadistas, tardías y retrospectivas. Este ensayo académico está dedicado a dos grandes maestros como Juan Romero Almendras y Félix Mayorca Palomino, quienes fueron docentes de la Facultad de Arquitectura y Urbanismo, y supieron favorecer la identidad educativa por la teoría, la fi losofía y la ciencia.
Espacios del Saber: Arquitectura de Bibliotecas Universitarias en Lima Metropolitana. Universidad Nacional Mayor de San Marcos y Pontificia Universidad Católica del Perú*
Authors: Sánchez Chiri Nathaly
Published: May 2021

La posibilidad de poder conocer y constatar la importancia de los espacios bibliotecarios como focos de aprendizaje invaluables es un factor muy importante dentro del campus universitario. Siendo hitos y lugares de apropiación por los mismos estudiantes y como principal lugar de conocimiento, muchas veces son relegados y en el ámbito arquitectónico peruano, inexistentes. El factor educación tiene un rol muy pobre en Perú, teniendo en cuenta las cifras alarmantes sobre el uso de bibliotecas. En base a bibliografía especializada y a la constatación empírica de las experiencias en los casos de las bibliotecas universitarias, Pedro Zulen y Luis Jaime Cisneros, se pretende aportar mediante un ejercicio de crítica arquitectónica al entendimiento de parte al ámbito espacial tan particular de las bibliotecas universitarias en el Perú.
La atenuación de las guías de ondas circulares con dieléctrico de aire
Authors: Cruz Ornetta Víctor , Cruz Salas Harold , Vasquez Garro Vanessa
Published: May 2021

Las guías de ondas son elementos importantes de los sistemas de transmisión por microondas, pero también son poco conocidas, especialmente, en el caso de las atenuaciones de las guías de ondas circulares. Por ello, el objetivo de este artículo es presentar, de manera clara y detallada, los cálculos para la obtención de las atenuaciones en las guías de onda circulares, de tal manera que contribuya a la sólida formación de alumnos de las carreras involucradas en estos temas. Para el desarrollo de este estudio, se recurrió a los libros de texto de campos electromagnéticos más reconocidos y a algunos papers. Asimismo, los cálculos se realizaron mediante Excel versión 1909 de Microsoft Office 365 Pro Plus. Como resultado, se encontró que las atenuaciones provocadas por estas guías son de pequeña magnitud. Por otro lado, se mostró que las fórmulas utilizadas son las correctas, ya que los resultados coinciden, casi en su totalidad, con aquellos alcanzados por científicos reconocidos a nivel mundial. Palabras clave: Guías de ondas, guías de ondas circulares, guías de ondas cilíndricas, atenuaciones de guías de ondas, pérdidas de guías de ondas
Robot telecontrolado aplicado en la mitigación de incendios para la Estación de Bomberos Voluntarios Victoria N° 08, Lima-Perú
Authors: Morzan Soto Ing. Arturo A. , Zerga Tapia Ing. Bruno G. , Palomares Orihuela Ing. Ricardo J.
Published: May 2021

La presente investigación corresponde a la aplicación de un robot telecontrolado en la mitigación de incendios para la Estación de Bomberos Voluntarios Victoria N° 08, el cual detecta zonas de alta temperatura utilizando imágenes térmicas.
CONSTRUCCIÓN DE UNA HERRADURA CON MEDIDA DE LEBESGUE POSITIVA
Authors: MENDOZA JIMENEZ Joel
Published: May 2021

En este artículo, se estudia la construcción de una herradura con medida de Lebesgue positiva, esta herradura es edificada de manera análoga a la herradura de Smale. La diferencia es que la herradura de Smale tiene medida de Lebesgue cero presentando caos, que desde el punto de vista probabilístico podría ser despreciable, sin embargo al construir la herradura con medida positiva vemos que no lo es.
HEILMAN, JAYMIE (2018). REBELIONES INCONCLUSAS. AYACUCHO ANTES DE SENDERO LUMINOSO
Authors: MARCELO DOROTEO Raul
Published: May 2021

El texto Rebeliones inconclusas, publicado por la editorial La Siniestra, se suma a los numerosos estudios publicados sobre la guerra interna que los/as peruanos/ as experimentamos durante las dos últimas décadas del siglo XX. Sin embargo, este texto se diferencia de los demás por el enfoque –a la vez local, histórico y antropológico– planteado al abordar el espinoso tema de la insurrección senderista. La virtud de la narrativa histórico-local es que permite a Heilman situar la insurrección armada senderista en el tiempo y vincularla con lo que venía ocurriendo en las zonas rurales de la sociedad andina, donde se suscitaban conflictos –en especial, por tierras– entre notables locales y campesinos pobres, entre campesinos pobres y entre comunidades campesinas.
Black tea decreases postprandial blood glucose levels in healthy humans and contains high-molecular-weight polyphenols that inhibit α-glucosidase and α-amylase in vitro: a randomized, double blind, placebo-controlled, crossover trial
Authors: Isono Yoshikazu , Watanabe Hisako , Kumada Masafumi , Takara Tsuyoshi , Iio Shin-ichiro
Published: May 2021

Background: To prevent diabetes, it is important to control postprandial glycemic levels. Studies have suggested that consuming black tea decreases the risk of type 2 diabetes; however, only a few studies have examined the effects of black tea on postprandial glycemic control after consuming starch-rich foods. In addition, the mechanism underlying the suppression of postprandial glucose levels remains unclear.Objective: To investigate the effects of black tea on postprandial blood glucose levels in healthy humans and to identify the components of black tea that inhibit digestive enzymes.Methods: The inhibitory activity of black tea on digestive enzymes was measured, and the inhibitory components were fractionated. Healthy Japanese adults ingested 200 ml of black tea, and its effect on postprandial blood glucose and insulin levels were investigated. Results: Black tea dose-dependently inhibited α-glucosidase, sucrase, and α-amylase activity. The major components responsible for this inhibition were high–molecular-weight polyphenols. The galloyl moieties present in these compounds play an important role in their inhibitory activities. Two randomized, double-blind, placebo-controlled, crossover studies of healthy human subjects (total n = 46) were conducted to investigate the effect of black tea on blood glucose and insulin levels. Combined data from the two studies showed that black tea ingestion (200 mL) after cooked rice intake (200 g) significantly reduced the incremental area under the curve of glucose (P =.024) and insulin (P =.014) compared to placebo drink.Conclusions: The high–molecular-weight polyphenols in black tea inhibited α-glucosidase, sucrase, and α-amylase activity in a dose-dependent manner. Furthermore, black tea ingestion after eating cooked rice significantly reduced the incremental area under the curve of glucose and insulin. These effects of black tea could be attributed to the inhibition of digestive enzymes by high–molecular-weight polyphenols containing galloyl groups.Keywords: black tea, blood glucose, α-glucosidase, α-amylase, polyphenol
The Impact of Green Strategy on Organisations’ Relational Capital
Authors: Arfara Christina , Samanta Irene
Published: May 2021

The present study aims to explore the relationship between Green Strategy and Relational Capital. In doing so, it also investigates how green policies influence relational capital. The literature review refers to the significance of relational capital and its impact on strategic goals: organisational performance, organisational innovation and the social capital of the organisation. Examining the variables, green strategy and relational capital has also highlighted the factors that are influenced by green policies, including strengthening the negotiation capacity of the organisation, reinforcing knowledge diffusion and the development of a new corporate identity. Green practices that aim to improve the external conditions of the organisation are common characteristics and lead us to the following agents: Customers - Suppliers – Alliances – Corporate Reputation. Consequently, the categorisation of green practices refers to the relational capital’s components. The impact of green practices on relational capital is therefore indirectly proven due to the strong relationship between the factors and the components.
La importancia de las diferencias institucionales entre países en el nivel de consecución de los ODS: un estudio empírico a escala mundial
Authors: Reverte Maya Carmelo
Published: May 2021

Utilizando como soporte teórico los modelos de Matten y Moon (2008) y de la “quíntuple hélice”, la presente investigación analiza si las diferencias a nivel mundial entre 64 países en el nivel de consecución de los ODS pueden ser explicadas por una serie de variables institucionales relacionadas con las siguientes cinco dimensiones: el sistema cultural, el sistema político–legal, el desarrollo económico, el sistema educativo–laboral y la innovación. Nuestros resultados ponen de relieve el crucial rol de las políticas públicas en el nivel de consecución de los ODS mediante la mejora de la calidad institucional y de los sistemas de gobernanza así como a través de la promoción del gasto educativo y del ecosistema de innovación. En este sentido, resulta muy apropiada la adopción del modelo de la “quíntuple hélice” mediante la interrelación entre el gobierno, la Universidad y la empresa para afrontar los desafíos sociales y medioambientales que suponen los ODS.
Development of cooked semi‑finished product of special purpose on the basis of gluten‑free raw materials
Authors:   Saratov State Agrarian University named after N. I. Vavilov, Fahrtdinova L.T. , Sadigova M.K. ,   Saratov State Agrarian University named after N. I. Vavilov, Kirillova T.V. ,   Saratov State Agrarian University named after N. I. Vavilov, Saidullaeva Yu. T. ,   Tashkent State Agrarian University
Published: May 2021

The article presents the results of a study on the development of a recipe for semi‑finished custard based on gluten‑free raw materials. The ratio of components in the gluten‑free mixture was optimized using the regression analysis method. The influence of gluten‑free raw materials on the rheological properties of the semi‑ finished product is studied. The variants of the experiment differed in the composition of the composite mixture (the ratio of corn, rice flour and corn starch). The chemical composition and the ratio of the components of the mixture determine the rheological properties of the semi‑finished product. The experimental version with the ratio of rice flour, corn flour and corn starch 50:40:10 most corresponds to the rheological properties of the control version and is characterized by high consumer properties.
Improving the efficiency of heat-generating devices of heaters of food production
Authors:   Saint-Petersburg State Polytechnic University, Yermoshin N. A. , Lazarev Yu.G. ,   Saint-Petersburg State Polytechnic University, Romanchikov S.A. ,   Military academy of material-but-technical providing name of the general A.V. Hrulev, Bragin A.N. ,   Military academy of material-but-technical providing name of the general A.V. Hrulev
Published: May 2021

Heat devices of food production for cooking hot food and baking bread in the field have been investigated. A modification of the heat block and heat-generating device is proposed, as a result of which an increase in the intensity of evaporation of liquid fuel, its mixing with air, a high rate of the combustion reaction, an increase in the flame temperature, afterburning of the unburned part of the liquid fuel, as well as automatic transition of the heat apparatus from fuel with low flash point to a higher one. Constructive changes in heating devices for food production are based on an increase in the use of the used types of fuel due to the reflection of combustion products and a decrease in heat loss.
Review of the new interstate standard for bakery wheat
Authors:   All-Russian Scientific and Research Institute for Grain and Products of its Processing – Branch of V.M. Gorbatov Federal Research Center for Food Systems of RAS, Meleshkina E.P. , Bundina O.I. ,   All-Russian Scientific and Research Institute for Grain and Products of its Processing – Branch of V.M. Gorbatov Federal Research Center for Food Systems of RAS
Published: May 2021

All-Russian Scientific and Research Institute for Grain and Products of its Processing has developed a new interstate standard – GOST 34702–2020 «Wheat bakery. Specifications», which is put into effect from March 1, 2021 and sets requirements for its quality and safety.
Overview of rustic bakery products technologies
Authors:   Moscow State University of Food Production, Samoshin P.N. , Belyavskaya I.G. ,   Moscow State University of Food Production, Bogatyreva T.G. ,   Moscow State University of Food Production, Labutina N.V. ,   Moscow State University of Food Production, Titov A.Yu. ,   Moscow State University of Food Production
Published: May 2021

The article presents a historical and ethnographic excursion into the formation of the modern concept of «rustic bakery products», provides an overview of the technologies for preparing bakery products, presents some features of the production of a diverse range of rustic pastries, gives recommendations on the implementation of modern technologies for the production of high quality products.
Using quantitative real-time polymerase chain reaction (qRT-PCR) for detection microcystin producing cyanobacteria
Authors: Pham Thanh Luu , Hoang Yen Tran Thi , Thai Tran Thanh , Quang Ngo Xuan
Published: May 2021

Introduction: Cyanobacterial blooms (CBs) have become a growing concern worldwide. In the natural environment, potentially toxic (can produce toxins) and non-toxic (can not produce toxins) colonies often co-exist within a bloom.

Methods: The present study aimed to quantify toxic and non-toxic cells of cyanobacteria in the Tri An Reservoir (TAR) using a quantitative real-time polymerase chain reaction (qRT-PCR).

Results: Results showed that the Microcystis genus dominated the cyanobacterial communities in the TAR. Microcystis was also the primary microcystins (MC) producing cyanobacteria in the water. Total cyanobacteria and Microcystis cells ranged from 152103 to 27106 copy/L and from 105103 to 19106 copy/L, respectively. The cell number of potentially MC-producing cyanobacteria (corresponding to the Microcystis mcyD gene) varied from 27103 to 13106 copy/L. MC concentrations often present in raw water with a concentration of up to 4.8 mg/L. Our results showed that the MC concentration in raw water was positively correlated with the mcyD copy number, suggesting that Microcystis spp. are the main toxin producers in the TAR's surface water.

Conclusion: Our study suggested that qRT-PCR techniques and traditional count are comparable and could be used to quantify cyanobacteria. In addition, the qRT-PCR techniques can determine the toxic cyanobacterial cells and could be used as a tool for early monitoring of toxic cyanobacteria in lakes and reservoirs.
Research of decentralized loop automation simulation in distribution network using MALAB/SIMULINK
Authors: Nguyen Tuyen Thi Bich , Le Minh Thi Tinh , Huynh Dat Tien
Published: May 2021

Nowadays, technologies are rapidly developing, automation is omnipresent in our life. In the power system, automation technology solutions have been applied gradually and widely to meet the requirements of reliability. Before, when a fault occurs on the distribution network, the fault locating, isolating and grid restoring are still being done manually, so a large number of customers that are not in the fault zone still suffer outage for a long time. Distribution Automation System was developed to solve this problem. Currently, with the development of information technology, the Decentralized Loop Automation (DLA) in the distribution network is carried out by communication between the protective devices in the grid. Communication between devices can be done using time-control rules, using GOOSE messages, wifi or according to protocol IEC 61850. In addition, the protective devices can be connected to the control center to create a Centralized Loop Automation (CLA) in the distribution network. The paper considers the DLA solution with the time-control rules for a simple grid. Time-control rules models and simulation results were performed on MATLAB/ SIMULINK software. The paper proposed a user interface for DLA solution with many different failure cases, especially considering the protection coordination in case of doubles failure. The results of the paper show that DLA can isolate faults automatically and restore the grid in a short time, and these results can be developed as an experimental simulation in the future.
Petárdák a várostromokban
Authors: Lukács László
Published: May 2021

A petárdákról általában a tűzijátékok pirotechnikai eszközei jutnak eszünkbe. Kevésbé ismert, hogy a 15–16.  századokban ugyanezen a néven léteztek várostromoknál  alkalmazott robbanószerkezetek is. A tanulmányban  röviden áttekintjük a petárda meghatározásának változásait az elmúlt mintegy 150 év során. Röviden összefoglaljuk a  várostromok és az ezek során alkalmazott aknaharc  fejlődését. Bemutatjuk a petárdák típusait, azok főbb  technikai és szerkezeti jellemzőit. Az utolsó részben két 16.  századi magyar példát ismertetünk a petárdák várak elleni  támadás során történt eredményes alkalmazásáról.