bluuebunny/crossref_metadata_2025 huggingface dataset:
Experiencias en la atención en salud de mujeres con anormalidades citológicas o cáncer de cuello uterino en dos departamentos fronterizos: una lucha entre la vida y el sistema de salud colombiano
Authors: Molina Berrío Diana Patricia , Ramos Jaraba Sara Milena , Garcés Palacio Isabel C.
Published: May 2021

Objetivo: Describir la experiencia en la atención en salud de mujeres con anormalidades citológicas con biopsia negativa para malignidad o cáncer de cuello uterino invasor no mayor a 2 meses, en los departamentos de La Guajira y Nariño, en Colombia, entre 2016 y 2017. Metodología: Se presenta el componente cualitativo de un estudio de métodos mixtos de triangulación convergente, a través de 10 entrevistas y 3 grupos focales. Participaron 9 mujeres con cáncer y 6 con anormalidades citológicas entre los 43 y 65 años de edad, 6 de ellas indígenas y 14 pertenecientes al régimen subsidiado. Resultados: Las participantes mencionaron experiencias negativas frente a la atención en salud, pues enfrentan múltiples barreras para acceder al diagnóstico y al tratamiento, como demora en la asignación y la autorización de citas, exámenes y procedimientos; el gasto de bolsillo para traslados a ciudades capitales donde se brinda el servicio; dificultades para encontrar acompañamiento familiar fuera de sus comunidades de origen y barreras idiomáticas en mujeres de comunidades indígenas. También se presentaron dificultades de comunicación efectiva con el personal de salud, lo que llevó a algunas participantes a no entender su diagnóstico o tratamiento, y a no sentirse escuchadas. La vivencia del cáncer generó sufrimiento, rechazo de personas de su entorno social y despersonalización. Conclusiones: Las barreras de diversa índole para el acceso oportuno al tratamiento se agudizan por características de base como la pobreza y la pertenencia a grupos étnicos, convirtiéndose la supervivencia en una lucha diaria, que va más allá de las características propias de la enfermedad.
Actividad física, composición corporal, fuerza prensil y consumo de alimentos en trabajadores de una institución de educación superior
Authors: Domínguez Gabriel Claudia Marcela , Pacheco Preciado Aída Rocío , Franco Escobar Claudia , Petro Jorge Luis , Calvo Betancur Víctor Daniel
Published: May 2021

Objetivo: Determinar los niveles de actividad física, composición corporal, fuerza prensil, consumo de alimentos, y sus posibles asociaciones, en trabajadores de una institución de educación superior. Metodología: Estudio transversal en el que participaron 141 empleados administrativos y docentes (56 % mujeres y 44 % hombres), seleccionados mediante muestreo probabilístico estratificado. Se incluyó un modelo lineal generalizado, con regresión de Poisson para la asociación de las variables con la fuerza prensil de mano dominante. Resultados: El 51,6 % de los hombres y el 46,8 % de las mujeres presentaron sobrepeso u obesidad, según el índice de masa corporal; el 39,7 % de la población se encontró clasificada con riesgo de enfermedad cardiovascular por índice cintura / estatura; el 68,8 % cumplió con el requerimiento de actividad física; el 45,7 % clasificó con bajo nivel de fuerza prensil. De acuerdo con el modelo lineal generalizado, se encontró asociación significativa entre el bajo nivel de fuerza prensil con tener mayor masa adiposa y ser hombre. En consumo de alimentos, se observaron patrones inadecuados, con elevado consumo de ácidos grasos saturados, colesterol, azúcares añadidos y baja ingesta de fibra. Conclusión: Se identificaron factores de riesgo para el desarrollo de enfermedades no transmisibles, como alto comportamiento sedentario, exceso de masa corporal y bajo nivel de fuerza prensil; esta última se asoció de forma inversa con el porcentaje de masa adiposa. Se proponen planes de intervención para promover cambios en la conducta sedentaria, la actividad física y el consumo de alimentos.
Vascular interactions of Croton schiedeanus major flavonoids in isolated aortic rings from Wistar rats
Authors: Guerrero Pabón Mario Francisco , Ortiz S. Alejandra P , Puebla Ibáñez Dra. Pilar
Published: May 2021

Background: Ayanin (3,7,4’-Tri-O-methylquercetin) and 3,7-Di-O-methylquercetin (DMQ) are the main active metabolites isolated by bioguided fractionation from Croton schiedeanus, species known popularly in Colombia as “almizclillo”, which has been studied in experimental models in rats, exerting vasodilator and antihypertensive effects. Also, when the effect of these flavonoids was studied separately, important vasodilation was observed. Objective: To evaluate whether flavonoids from Croton schiedeanus have synergistic vasodilator properties when different combinations are used in isolated aorta rings. Methods: Cumulative concentrations of ayanin (10-8 M - 6x10-5 M or 0.01 μM - 60 μM) were assayed in the absence and presence of an increasing concentration of 3,7-Di-O-methylquercetin (DMQ) (10-8 – 3x10-5 M or 0.01–30 μM) in isolated rings from Wistar rats, pre-contracted with phenylephrine. The concentration-response curve with the maximal effect was compared with that obtained by Croton schiedeanus whole ethanolic extract (10-6 – 3x10-4 g/mL). Also, this combination was assayed in the presence of the nitric oxide synthetase inhibitor L-NAME (10-4 M) and the guanylate cyclase inhibitor methylene blue (10-4 M) to assess the role of the NO/cGMP pathway in this interaction. Results: Ayanin and DMQ display a dual interaction in vascular relaxant response: agonism at higher concentration ranges (10-6 – 3x10-5 M or 1–30 μM) and antagonism at lower concentration ranges (10-8 – 3x10-7 M or 0.01–0.3 μM). The efficacy at the highest concentration was greater than that obtained by the whole extract (Emax: 98.4% vs. 33.9%). This response was decreased but not reverted in the presence of L-NAME and methylene blue. Thus, the vasodilator effect of this combination does not depend entirely on the NO/cGMP cyclic pathway. Conclusion: The combined use of appropriate concentrations of these flavonoids could represent an advantage over Croton schiedeanus whole extract for vasodilator purposes.
EXPEDIENCY OF INTRODUCING A CRAFT CAVE IN A HOSPITALITY INSTITUTION
Authors: Budarina Kateryna , Sharan Larysa , Bondar Natalia , Gubenya Vyacheslav
Published: May 2021

Goal. The purpose of the article is to substantiate the feasibility of introducing a craft cafe on the basis of a business hotel, in particular, introducing the local stage of raw raw materials preparation in the technology of preparing coffee beans. Indeed, according to the study, the provision of services for organizing the preparation of a coffee drink in hotels is not satisfactory. And the quality of raw materials leaves much to be desired.

Methodology. The methodological basis of this work is the work of domestic and foreign scientists in the field of hospitality, scientific periodicals, Internet resources. The methodology includes generalizing and statistical data, which reflects the feasibility of introducing a preparatory operation for processing raw materials in the technology of making coffee precisely on the territory of a hospitality establishment.

Results. As a result of the research, the international and domestic experience of introducing a craft cafe in a business hotel was analyzed. It was found that there is no such practice of implementation in domestic and foreign hospitality establishments. An algorithm was developed for the introduction of a craft cafe, ways of using secondary raw materials in additional services were proposed, and the positive effect of coffee on the human body was confirmed. The results of the implementation will help improve the culture of coffee consumption and expand its range, while providing the hospitality enterprise with the opportunity to develop and make significant profits.

Scientific novelty. The necessity of introducing a craft cafe with its own roast on the territory of a hospitality enterprise has been proved. The world experience in the introduction of craft cafes in Ukraine has been systematized. The assortment of additional services that contribute to increasing the competitiveness of the institution, as well as which will enable business people during business trips to enjoy high-quality coffee drinks and maintain the beauty of their body, are presented.

Practical significance. The materials presented in the work can be used to improve and expand the range of additional services provided in domestic hospitality enterprises: to expand the range of coffee beans of our own production with different degrees of roasting for the manufacture of various coffee drinks, to reduce costs when purchasing batches of finished beans at auctions, while increasing their competitiveness not only in Ukraine, but also far beyond its borders.
Differences in consumption of psychotropis drugs in depression disorders: ethnic aspects
Authors: Stepanyan Svetlana A. , Manvelyan Eleonora A. , Manvelyan Mikael M. , Yarovitskii Vladimir B. , Chagarova Saniyat A.
Published: May 2021

In the pharmacotherapy of depressive disorders, drug consumption was maximal in the group of Slavs, less in the groups of Karachays, Turkmens, Nogais, and minimal in the group of Armenians.
Proposed mechanisms of systemic cardiovascular action of gliflosins
Authors: Zverev Yakov F. , Rykunova Anna Ya.
Published: May 2021

The literature review is devoted to the study of the mechanisms of the cardioprotective action of a new class of glucose-lowering drugs glyflozins, which inhibit the joint transport of sodium and glucose in the proximal renal tubules. The large-scale clinical trials carried out in recent years have demonstrated the beneficial effect of these compounds not only on glycemic control, but also on the progression of heart failure in patients with diabetes mellitus. Analysis of literature data shows that the effect under consideration is due to both the positive systemic cardiovascular and direct cardiotropic action of the drugs. The first part of the review examines the systemic effect of drugs, including their diuretic, natriuretic and antihypertensive effects, increased hematocrit, vascular effects that influence arterial stiffness, smooth muscle tone, and endothelial dysfunction. The metabolic effects of type 2 sodium and glucose co-transport inhibitors are discussed separately, including an increase in lipolysis, the role of glucagon and activation of ketogenesis, and their contribution to the development of a probable cardioprotective effect.
Thermal pharmacology: history and definition
Authors: Urakov Aleksandr L.
Published: May 2021

The literature review shows that temperature pharmacology is a new scientific and practical direction of pharmacology, in which the local effect of drugs on individual tissues, organs or parts of the body is realized at a certain local temperature. This trend was formed in Russia at the end of the 20th century due to the fact that such great surgeons as V.A. Negovsky, E.N. Meshalkin and V.I. Shumakov proved in clinical conditions that hypothermia prolongs the safety of the brain, heart and kidneys in the absence of arterial blood and/or oxygen. Then, under the influence of the successful use of local hypothermia for therapeutic purposes in such areas as resuscitation, transplantology and surgical treatment of heart and major vascular diseases, the study of the mechanism of action of local hypothermia as a medicine began. Intensive research in this area began in 1981 at the Department of Pharmacology of the Izhevsk Medical Institute. In the following years, the features of the local action of local hypothermia, drugs and their combinations on mitochondria, blood, blood vessels, myocardium, intestines and limbs of experimental animals and patients in normal conditions, as well as in hypoxia and ischemia were studied. Very soon, the results of research allowed to reveal the main mechanisms of action of local hypothermia and the laws of temperature dependence of the local action of drugs. This allowed to invent several original methods of pharmaco-cold and pharmaco-warm effects that increase the effectiveness of treatment of arterial obstruction of the extremities, inflammatory processes and parenchymal bleeding. It is indicated, that the main provisions of temperature pharmacology were formulated by 1988. The chronology of resolving the contradictions that arose at that time between the widespread public opinion and new ideas about the role of local temperature in the mechanism of local action of drugs in hypoxia, ischemia, inflammation of organs and tissues, and bleeding is shown. Achievements and prospects of development of temperature pharmacology in medicine, biology, pharmacology and pharmacy are shown.
Vaccination Education Subordinated to Campaigning
Authors: Martin Brian
Published: May 2021

Proponents of vaccination would like to educate parents with the aim of getting them to agree with the dominant view. This creates a tension with an alternative goal of education, to encourage people to think for themselves. The challenge of learning about vaccination is increased by the public debate in which proponents and critics diverge dramatically and do not engage with each other’s arguments.
Vaccination Decisions as a Perpetual Compulsory Democratic Programme for Society and Individuals
Authors: Iseke Axel
Published: May 2021

Infectious agents, which can spread rapidly within large groups of people, have always been a threat to human health. Hygieneand vaccination measures have played a crucial role in reducing diseases on a large scale. Globally, however, infectious diseases continue to affect the differences in life expectancy between the populations of different countries. In societies with a high standard of living and well-trained health care systems, the threat posed by infectious diseases has been comprehensively suppressed through successes in prevention. This can lead to individuals deciding against immunization because they do not perceive an individual threat from the disease. Global pandemics such as HIV and currently SARS-CoV-2, make it clear however, that many infectious diseases cannot be regulated without the presence of vaccines, or can only be regulated by accepting considerable consequences for society. A single vaccination protects the individual; high vaccination rates protect the population as a whole and particularly those at risk. Vaccination decisions must, therefore, be made on the basis of a public consensus-oriented discussion. Against this background, the vaccination idea should be a permanent part of educational canons.
Editorial
Authors: Lopez Zaldívar Halley
Published: May 2021

Uno de los objetivos que persigue Cuadernos Jurídicos Ius et tribunalis es visibilizar, a nivel nacional e internacional, las investigaciones realizadas por los estudiantes y docentes de la Facultad de Derecho de la Universidad Continental. En razón a ello, es que siempre nos hemos esforzado por conseguir trabajos elaborados por estudiantes y docentes, generando incentivos para la realización de actividades de investigación, mostrando a la comunidad jurídica y general tales productos para su revisión y discusión, dada su indiscutible actualidad. En esa línea, se presenta un nuevo número de nuestros Cuadernos Jurídicos, con investigaciones procedentes de docentes y estudiantes de esta casa de estudios, en distintas disciplinas jurídicas, de las que estamos seguros generarán un impacto positivo en la comunidad.
La mutabilidad relativa, virus que ataca al organismo de la cláusula penal. ¿La mutabilidad de la cláusula penal causa su desnaturalización?
Authors: Muñico Patilla Shirley , Paz Cano José , Rebatta Chirre Queni
Published: May 2021

El artículo 1346 del Código Civil da la posibilidad al juez de reducir la pena, ¿acaso no es este un virus que ataca el organismo de la cláusula penal? Dicho en otros términos, ¿qué sentido tendría pactar una penalidad si, una vez advertido el incumplimiento, las partes se ven inmiscuidas en un engorroso proceso en el que tendrían que demostrar que los daños derivados del incumplimiento son en verdad mayores o menores respecto del monto de la cláusula penal?
Effect of Transportation Parameters on Traffic Accident in Urban Areas Comparison study of ANFIS With Statistical Analysis
Authors: Suleiman Ghassan M. , Younes Mohammad K. , Ergun Murat , Omari Khaled Al
Published: May 2021

Traffic accidents present a serious problem for both developed and developing countries and have become an urgent matter to tackle in all large metropolitan areas. This study aims to perform a deep comprehensive analysis of the traffic accidents issue in Istanbul, one of the world’s most populous cities. The accidents were classified and its intensities were presented on Istanbul map using a GIS tool. Furthermore, the performance of Negative Binomial Regression analysis and Adaptive Neuro-Fuzzy Inference System (ANFIS) model was assessed. Data collection of independent variables included distribution of trips, percentage of street parking, rate of car ownership, street density and population density. Trips were divided into three categories, passenger car, minibus and bus trips. The results showed that four legs intersection got the highest proportion of accidents among the other types with (40%). It also demonstrated that increasing both the percentage of bus trips and the percentage of street parking will decrease the traffic accident rate. Furthermore, the implementation of ANFIS model increased the accuracy of forecasts and reduced errors more than the regression model.
THE ROLE OF WOMEN EMPOWERMENT TOWARDS HOUSEHOLD POVERTY REDUCTION: EVIDENCE FROM PUNJAB, PAKISTAN
Authors: Sarwar Ambreen , Chaudhry Mumtaz Anwar
Published: May 2021

Purpose of the study: This study intends to examine the impact of various dimensions of women empowerment on multiple constituents of household poverty in the three cities (Lahore, Multan and, Rawalpindi) of province Punjab, Pakistan.

Methodology: The primary data was gathered from a sample of 2400 married and employed females belonging to the three cities of Punjab, Pakistan. For analysis, the study develops its own all-embracing Women Empowerment and Household Poverty variables using exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) and examines the relationship between the empowerment of women and household poverty using structural equation modeling (SEM).

Main Findings: The results show that women empowerment positively and significantly contributes towards household poverty reduction.

Applications of this study: Since poverty is one of the greatest challenges that Pakistan is facing today, the need to change poor standards of living and inspiring women to contribute effectively to society through their active participation in the development process is the dire need of time. The results of the study suggest that in addition to targeting poverty directly, policies should be devised that eradicate poverty through the empowerment of women.

Novelty/Originality of this study: The majority of the past studies have limited generalizability because they use already available surveys/published data, having limited dimensions/indicators of women empowerment and household poverty. Moreover, the past studies that have examined the phenomenon of women empowerment ignore its psychological dimensions. Therefore, because of minimal comprehensive investigation, the examination of the effect of the empowerment of women on household poverty remains a topic of interest for the researchers.
IMPACT OF WORKFORCE DIVERSITY ON ORGANIZATIONAL CULTURE: A CASE OF UNIVERSITIES OF PAKISTAN
Authors: Aurangzeb  , Lohana Kamleshwer , Bibi Nazia , Rehman Ishtiaq ur , Alizai Shahida Habib
Published: May 2021

Purpose of the Study: The present research was undertaken to determine the impact of workforce diversity taxonomy like diversity climate, value, organizational justice, and identity on various dimensions of organizational culture.

Methodology: A sample of 117 university teachers selected from the university and higher educational institutions in Pakistan. Convenient sampling techniques were used to collect the data through a Google survey, using workforce diversity.

taxonomy inventory and organizational culture questionnaire. Data analyzed by using a t-test to compare the mean scores of various dichotomized groups to see the effect of workforce diversity taxonomy on organizational culture with the help of the SPSS package.

Principal Findings: Results revealed that workforce diversity taxonomy like diversity climate, value, organizational justice, and identity significantly influenced organizational culture and its various dimensions. Perceived high and low respondents’ workforce diversity taxonomy differed significantly on organizational culture.

Applications of the study: This study can formulate strategies to improve workforce diversity in universities and higher educational institutions in emerging economies like Pakistan.

Novelty/Originality of this study: The present research contributes to the literature on perceived workforce diversity taxonomy and organizational culture in terms of autonomy, trust, communication, transparency, interpersonal relation, decision making, and overall organizational culture, particularly in university and higher educational institution’s teachers.
IMPACT OF IMF LENDING ANNOUNCEMENTS ON THE PERFORMANCE OF STOCK MARKET: EMPIRICAL EVIDENCE FROM PAKISTAN
Authors: Azeem Muhammad , Ahmad Nisar , Hussain Sarfraz , Khurshid Muzammil , Majid Safyan
Published: May 2021

Purpose of the study: Stock markets have demonstrated varying reactions to IMF lending announcements across various economies. Announcements offered by IMF often be perceived negatively by the participants of the stock market, because of stringent conditions accompanied with the loan that may oppose the political and economic agenda of a borrowing nation. Thus, this study intends to investigate the impact of IMF’s announcements about extending loans to Pakistan on the performance of the Stock market in the debt-ridden economy.
Methodology: For regular returns from 1997 to 2017, the benchmarking indexes of KSE-100 and 30 were used. Meanwhile, IMF lending arrangements are categorized into three respective dummies (standby, extended credit facility, and extended fund facility). The Generalized Autoregressive Conditional Heteroscedastic (GARCH) model was used to investigate the effect of IMF’s lending news on the regular stock returns.
Main findings: The results show a statistically significant effect of the IMF’s News about lending arrangements on the performance of the stock market in Pakistan. Surprisingly, the negative effect of IMF lending announcements on the performance of the stock market in Pakistan implies that the loans extended by IMF are not professed by speculators as good for the economic performance of the economy.
Application of this study: The findings of this study imply that simply extending loans is not a panacea for politically unstable and financially ruined nations. Lending strategies of IMF need to be favourable for the political and economic conditions of a borrowing country.
Originality/ Novelty: As for as the novelty is concerned, the study has highlighted the time-varying impact of IMF lending announcements on the performance of the stock market in a financially fragile country where a newborn government facing multiple challenges has made its best effort to avoid borrowing from IMF.
Inventive Higher Education: a Blending Passage
Authors: Gharehbaghi Koorosh , Scott-Young Christina , Sagoo Amrit
Published: May 2021

The massification of education has led to the perception in some disciplines that an undergraduate degree no longer provides sufficient competitive advantage in employment. While undergraduate degrees deliver sufficient professional and expertise substance for entry level positions, ultimately it is the postgraduate qualification which sets students apart and in turn assists with rapid career advancement. In ensuring that graduate students exceed the desired entry level of professional skills, the education institution needs to provide a linking passage between undergraduate and postgraduates studies. This blending passage offers a significant opportunity for students to further develop their overall expertise and skill set. Moreover, this blending passage needs to closely align with the specific professional requirements together with the potential for the graduate to seek possible career progression and advancements. Accordingly, postgraduate studies need to align with these specific professional requirements. The blending passage is an innovative approach which maximizes non-traditional learning and provides incentives to further augment the student’s career. This rapprochement will be aligned with the relevant professional bodies that will also carefully consider the students’ professional competencies. This paper will investigate three prominent Australian universities and their Engineering undergraduates’ belief in the importance of further education and their desire to further develop their specialist expertise through postgraduate study. Minitab will be utilized as a statistical tool to analyze survey data and the findings and their implications for the provision of a blended passage to postgraduate study will be discussed.
Diseño y modelado del robot PA-10 virtual para aplicaciones quirúrgicas
Authors: Fernández-Riomalo Carlos Eduardo , Guástar-Morillo Héctor Andrés , Vivas-Albán Oscar Andrés
Published: May 2021

El trabajo presenta la implementación de un simulador quirúrgico virtual para operaciones de laparoscopia utilizando asistentes robóticos. Para este tipo de simuladores son necesarios tres robots: un robot portaendoscopio (en este caso se utiliza un robot Hibou) y dos robots quirúrgicos (en este caso un robot Lapbot y un robot tipo PA-10). Los tres robots son manejados por joystick en un ejercicio de extracción de vesícula biliar (colecistectomía), y se incluyen en el ejercicio algoritmos de deformación que modifican los órganos al contacto del órgano terminal del robot PA-10, imprimiéndole mayor realismo al simulador. Los resultados proporcionan la base de un simulador quirúrgico utilizando tres robots asistenciales, en un ejercicio común en laparoscopia, ideal para el entrenamiento de nuevos cirujanos.
Desarrollo de un método de simulación física de zonas térmicamente afectadas en soldaduras de acero, para estudios de propagación de grietas por fatiga
Authors: Atehortua-López Daniel Fernando , Catacolí-Pereira Ramiro , Aguilar-Castro Yesid , Sánchez-Sthepa Héctor , Sabirov Ilchat
Published: May 2021

Se presenta el desarrollo de un método de simulación física, a través del sistema Gleeble, de las zonas térmicamente afectadas de uniones soldadas de aceros estructurales (A283 Gr. C y A106 Gr. B), para el estudio de la propagación de grietas por fatiga. Para ello fue necesario utilizar probetas de 90 mm de largo, 49,5 mm de ancho y 7 mm de espesor, en una configuración que no se encuentra dentro de los estándares del sistema para este tipo de simulaciones. Con este método se reprodujeron satisfactoriamente, y por separado, en diferentes probetas del metal base correspondiente, la zona de grano fino, la zona de grano grueso y una zona de múltiples pasadas presentes en uniones soldadas fabricadas por FCAW. Las zonas simuladas fueron reproducibles, homogéneas, no presentaron defectos ni tensiones residuales y tuvieron un tamaño considerablemente grande, además que las características microestructurales (como el tamaño de grano y el porcentaje de fases) fueron muy similares a su contraparte real, lo que permitió estudiar por primera vez el efecto neto de la microestructura sobre el comportamiento a la fatiga en estas zonas. De esta manera, el desarrollo realizado permitió aumentar considerablemente las aplicaciones y las ventajas que esta técnica puede tener, además de mejorar la comprensión del comportamiento a la fatiga de las soldaduras de acero.
Efecto del rendimiento del combustible en la decisión de compra de vehículo
Authors: Morales-Rodríguez Julián Eduardo , Ortiz-Durán Deysy Jeannette , Márquez-Díaz Luis Gabriel
Published: May 2021

El artículo presenta los resultados de una investigación que se realizó con el propósito de estudiar el efecto del rendimiento del combustible en la adquisición de un vehículo nuevo. La metodología se basó en una encuesta de preferencias declaradas, en el contexto de un experimento de elección de dos alternativas no etiquetadas que se caracterizan por el costo del auto y el rendimiento del combustible. Con los datos acopiados se estimó un modelo Logit Multinomial, que permitió estudiar diferentes escenarios de elección. Se encontró que, en promedio, los individuos están dispuestos a pagar $1.020.000 por mejorar en 1 km/galón el rendimiento del combustible, este valor puede servir de referencia a la industria automotriz en el esfuerzo por producir vehículos de mayor rendimiento.
Comportamiento a fatiga térmica de la capa de anclaje de nuevas barreras térmicas cerámicas obtenidas mediante proyección por plasma atmosférico
Authors: Carpio Pablo , Salvador-Moya María Dolores , Borrell Amparo , Sánchez Enrique
Published: May 2021

El desarrollo de nuevos materiales cerámicos para aplicarlos en recubrimientos protectores frente a la temperatura, también conocidos como barreras térmicas (Thermal Barrier Coatings o TBC), es de gran interés para muchos sectores, entre los que destacan las industrias de generación de energía, aeronáutica y automovilística. En este trabajo se realizó un estudio del comportamiento a fatiga térmica, centrado en la respuesta de uno de los componentes que constituyen una TBC: la capa de anclaje. Los distintos componentes de la TBC fueron depositados mediante la técnica de proyección térmica por plasma atmosférico (Atmospheric Plasma Spraying o APS). Se estudió la microestructura y la composición de la capa de anclaje a lo largo de los ciclos térmicos de estudio.
Planeación y ejecución de trayectorias en el espacio de trabajo para un robot Delta
Authors: Flórez-Vergara Diego Edissón , Castro-Riveros Fabián Camilo , Castillo-Estepa Ricardo Andrés
Published: May 2021

En este artículo se expone una técnica de planeación y ejecución de trayectorias en el espacio cartesiano para ser aplicada en un robot delta. Con el fin de configurar y generar la trayectoria deseada, se diseña un software con interfaz gráfica (GUI), en el cual se implementa el algoritmo para calcular y visualizar los puntos intermedios de movimiento del robot en el espacio de trabajo. Para validar la trayectoria generada es utilizado un robot delta, diseñado y construido en el laboratorio de Robótica de la Universidad Militar Nueva Granada, el cual es controlado por medio de un circuito electrónico que permite la implementación adecuada de la técnica propuesta. De esta manera, es posible validar sobre el robot real las trayectorias calculadas por el algoritmo y visualizadas con el software de simulación.
Nanopartículas magnéticas de zinc y calcio para aplicaciones en hipertermia magnética
Authors: Jasso-Terán Rosario Argentina , Cortés-Hernández Dora Alicia , Sánchez-Fuentes Héctor Javier , Reyes-Rodríguez Pamela Yajaira , León-Prado Laura Elena
Published: May 2021

El cáncer es la segunda causa de muerte en el mundo. El tratamiento alternativo de hipertermia magnética consiste en elevar la temperatura de las células cancerígenas por medio de nanopartículas magnéticas. En este trabajo se presenta la síntesis y la caracterización de dos ferritas de zinc-calcio (Zn0.50Ca0.50Fe2O4 y Zn0.25Ca0.75Fe2O4). La síntesis de estas ferritas se llevó a cabo por el método de sol-gel, con posterior calcinación a 400 °C. La ferrita Zn0.50Ca0.50Fe2O4 (ZCF050) presentó una magnetización de 31.31 emu/g, y la ferrita Zn0.25Ca0.75Fe2O4 (ZCF075), de 38.30 emu/g. El tamaño de partícula promedio fue de 14 nm para la ZCF050 y de 12 nm para la ZCF075. Adicionalmente, se realizaron pruebas de bioactividad in vitro mediante la inmersión de muestras en un fluido fisiológico simulado por 21 días bajo condiciones fisiológicas de pH y temperatura. Se encontró que solo la ZCF075 fue bioactiva. La habilidad de calentamiento de las ferritas se evaluó utilizando un equipo de inducción magnética en estado sólido. Las condiciones de trabajo fueron las siguientes: un campo magnético de 10.2 kA/m y una frecuencia de 362 kHz. La ferrita ZCF050 alcanzó una temperatura de 41.2 °C, utilizando una concentración de ferrita/agua de 20 mg/2ml. La ferrita ZCF075 no logró alcanzar los 40 °C. Los resultados obtenidos del análisis de la ferrita ZCF050 indicaron que es un material potencial para su uso en tratamientos de cáncer por hipertermia magnética.
Educational standards: new challenges
Authors:   NUST MISIS, Soloviev V.P. , Pereskokova T.A. ,   Russian Geological University (MGRI) n.a. Sergo Ordzhonikidze brunch in Stary Oskol
Published: May 2021

Examined is the problem of the content of educational standards of various levels of training: secondary vocational education (SPO), bachelor’s degree, specialty, master’s degree. Shown by the example of one enlarged group of specialties and directions, that the standards do not differ much after the changes in 2020. Noted is, that educational programs will differ after the educational organization determines the training profiles and professional competencies. Proposed is to develop generalized standards for all levels of higher education and to form a qualification characteristic for each direction or specialty, indicating the training profiles, the list of professional competencies and the professional standards recommended for use. Also proposed is to form a qualification characteristic for each direction or specialty, indicating the training profiles, the list of professional competencies and the professional standards recommended for use.
On the content of education: in search of new conceptualities
Authors:   Tomsk Polytechnic University, Karyakin Yu.V.
Published: May 2021

Presented is a brief review of modern publications on the topic of education in terms of the interpretation of the concept of its content, that reveals a motley picture of both the interpretation of the term itself and the practice-oriented options for its filling. This study realizes the intention to predict the nearest development of the concept of education on the basis of an ontological-epistemological description of the concept of “content of education”, formed on the basis of a conjugate consideration of two ways of describing the world — the traditional empirical and the progressive theoretical. The text contains a comparative characteristic of the traditional pedagogical presentation of the content of education and its presentation in the paradigm of an innovative ontogenetic approach. The authors of the ontogenetic approach substantiate the need for the development of the educational process in general education and higher education on different conceptual content of the educational content. In the first case, it is a traditional pedagogical conceptuality, and in the second, an innovative ontogenetic one. The idea of evolutionary conjugation of two educational processes in accordance with age restrictions and students’ capabilities is expressed. Age continuity of education is realized by the distribution of learning tasks. The task of a general education school is to lead students to operate with concepts, the task of a higher school is to prepare students for the knowledge of a constantly changing world.
Digital socialization of schoolchildren and its influence on development of humanitarian orientation of Russian education
Authors:   Moscow State University of Humanities and Economics, Allahverdiyeva L.M. ,   Gzhel State University, Gasparishvili A.T. ,   Lomonosov Moscow State University,   RUDN,   FCTAS RAS
Published: May 2021

Analyzed is the problem of active use of digital technologies in education. Noted is that the theme is presented by many authors as a great benefit, but one should see both their positive and negative sides. The article examines the relationship between digital socialization and educational processes and attempts to find possible ways to reduce the negative impact of new virtual factors and new digital means of influencing the minds of young people.
Using MOOCs in the process of teaching future engineers mathematical disciplines
Authors:   Penza State Technological University, Liksina E.V. , Vagaeva O.A.
Published: May 2021

Researched are peculiarities of using massive open online courses (MOOCs) in the process of teaching mathematics to future engineers. The need for democratization, increased accessibility and the trend towards digitalization of education in the future will lead to the widespread use of online courses in education, including technical. As part of the study, a survey was conducted of teachers and students of technical universities in the form of a questionnaire. The survey revealed a fairly high awareness of teachers about massive open online courses (93.3%). Among students, the number of such respondents was only 45.4%. The most popular among the surveyed teachers and students is the online platform “Open Education” — 53.3% and 34.5%, respectively. Note that among the reasons that prevent the use of massive open online courses in education are: lack of free time, lack of skills to work in this format, lack of regulation of the implementation of learning outcomes in MOOCs in the formal educational process. At the same time, analysis of the platforms Coursera, EdX, OpenEducation, Intuit, Lektorium, and Stepik showed that as of January 2021, 150 courses were available in both general and specific math areas. We believe that the active use of massive open online courses in preparation for the educational process can increase the efficiency of mastering competencies in solving practical mathematical problems, which will improve the training of future engineers.
Social (in) justice, economic inequality and structural conflict at the early twenty-first century
Authors:   National Research University “Higher School of Economics”, Ryazantsev A.P.
Published: May 2021

Analyzed are problems of socio-economic inequality and its connection with structural conflicts, which are expressed in actions of a number of social movements (anti-globalists, alter-globalists, anarchists, etc.). Theoretical analysis of socio-economic inequality based on specific cases related to these social movements leads to the following conclusions: internal conflict of one individual with the state, it’s policies and associated low standard of living gives the individual an incentive to search for like-minded people. Such groups of like-minded people can become the basis for entire organizations, and social movements and demonstrations, which most often lead to massive outbursts of violence. The internal conflict of the individual turns into an external conflict of the masses, which is a direct consequence of the structural conflict arising from the uneven distribution of economic benefits in the social structure of society, the high level of socio-economic inequality and social injustice, which becomes the main cause of social tension.
The world economy. The corona virus pandemic. Unprecedented risks and uncertainties
Authors:   Russian State Agricultural Correspondence University, Komarov V.V. , Litvina N.I. , Ananeva E.V. , Pronchenko L.V.
Published: May 2021

Examined is processes of the dynamics of the world economy in crisis conditions. The coronavirus pandemic has exposed the systemic vulnerability of the modern world economy. Sustainable development, the promotion of equitable growth, and the reduction of inequality can provide guarantees to overcome future crises. In the authors opinion, the coronavirus pandemic is a trigger for the development, creation and launch of new international mechanisms for overcoming new global crisis situations.
Milestones of I.A. Ilyin’s life and work 128
Authors:   Volga branch of Volgograd  State University, Meider V.A.
Published: May 2021

Presented is an analysis of the multi-faceted creative heritage of the Russian philosopher, jurist and publicist I.A. Ilyin. Shown is that his scientific ideas and moral political ideals covering a wide range of problems of the individual and society are still relevant to actuality, and require deep critical reflection. In the article, is being recreated concrete image of the scientist-patriot of Russia.
Tecituras ético-sociais na arte de Priscila Rezende
Authors: Biancalana Gisela Reis , Santos Camila Matzenauer dos
Published: May 2021

Inúmeras mulheres se dedicam às artes performativas como lugar de suas reivindicações sociais, feministas e raciais. Este texto reflexivo revolve estas questões performativas enquanto movimentos sociais atuantes na luta pelos direitos da mulher negra. Para tal, buscamos evocar o trabalho de Priscila Rezende, artista mineira, destacando duas de suas obras: “Bombril” e “Gênesis 03:16”. Assim, a escrita suscita implicações éticas recorrentes que engendram articulações fundamentais na luta feminista e negra.
Futures literacy theatre lab with unaccompanied asylum-seeking minors
Authors: Senna Pedro de
Published: May 2021

This article discusses a Practice as Research project, the design and implementation of a Futures Literacy Lab in which tools derived from the arsenal of the Theatre of the Oppressed were applied. The lab involved asylum-seeking unaccompanied minors, and took place in the island of Lesvos, Greece in July, 2019. Applied theatre practices often deal with communities and individuals in a transformational manner, which is, by definition, future-oriented. In this respect, the work undertaken served as a first case study for potential interdisciplinary collaboration between Performance Studies and Futures studies. This exercise is not without its ethical implications, though. This paper will discuss some of the challenges, pitfalls and successes of this process.
An Efficient CNN Model for Automated Digital Handwritten Digit Classification
Authors: Biswas Angona , Islam Md. Saiful
Published: May 2021

Background: Handwriting recognition becomes an appreciable research area because of its important practical applications, but varieties of writing patterns make automatic classification a challenging task. Classifying handwritten digits with a higher accuracy is needed to improve the limitations from past research, which mostly used deep learning approaches.Objective: Two most noteworthy limitations are low accuracy and slow computational speed. The current study is to model a      Convolutional Neural Network (CNN), which is simple yet more accurate in classifying English handwritten digits for different datasets. Novelty of this paper is to explore an efficient CNN architecture that can classify digits of different datasets accurately.Methods: The author proposed five different CNN architectures for training and validation tasks with two datasets. Dataset-1 consists of 12,000 MNIST data and Dataset-2 consists of 29,400-digit data of Kaggle. The proposed CNN models extract the features first and then performs the classification tasks. For the performance optimization, the models utilized stochastic gradient descent with momentum optimizer.Results: Among the five models, one was found to be the best performer, with 99.53% and 98.93% of validation accuracy for Dataset-1 and Dataset-2 respectively. Compared to Adam and RMSProp optimizers, stochastic gradient descent with momentum yielded the highest accuracy.Conclusion: The proposed best CNN model has the simplest architecture. It provides a higher accuracy for different datasets and takes less computational time. The validation accuracy of the proposed model is also higher than those of in past works.
Efficient companies and results of Istrian tourism industry through transforming of ownership and privatisation
Authors: Bošković Desimir , Tomčić Zdenko , Šergo Zdravko
Published: May 2021

The transforming of ownership in the tourism sector of Istrian industry, has been conducted as in different sectors whereby a great percent of sectors have become the state- property , and the final privatisation has still to be conducted. The future property structure is dominated by the institutionalized forms of the state as the Croatian privatisation fund, Retirement fund and banks, which is contradictory with the foreseen goals of privatisation and market economy which Croatia is turning to. The transforming of ownership relations of tourism companies has created the presumptions for new property relations and development of business and management as the most secure way towards the healing of the tourism industry. This article analyzes the processes of ownership transforming and privatisation of Istrian hospitality and tourism enterprises, main limitations which influence the direction and success of privatisation, and also give propositions and possible solutions of this complex problem. The long-termed meaning of this process is characterized in the structural change of the tourism offer, business, management, technic-technological structure, marketing and a new development cycle.
Process and trends in strategy and form of organizational structures (research of Istrian Partnership Companies of Hospitality)
Authors: Gonan Božac Marli , Dujanić Marčelo , Vranešević Tihomir
Published: May 2021

The success of partnership companies of hospitality depends on occasional and constant improvements. The two most important stimuluses of improvement are the change of organizational structures (organizational redesign), and the executive leadership. The executive leadership and thereby the top management team has the key role. The redesign of organizational structures has to be a dynamic process which will enable the compatibility with its surrounding. The analysis of the organizational structure and strategy is conducted on the sample of Istrian partnership companies of hospitality.
Privatization of Croatian hotel industry, situation and difficulties
Authors: Perić Jože
Published: May 2021

Within last years there where no essential changes in privatization of Croatian hotel industry. In the ownership structure dominate State (funds) and subjects (banks, insurance companies, INA...) mostly owned by State (funds). It is more evident the interdependence between privatization and social transition, specially economic and political, as a whole. Between the limits is the insufficient domestic accumulation and humble inflow of foreign direct investments. Specific difficulties come out from the estimated value of enterprises in hotel industry, their economic efficiency, restructuration and absents of the new ideas and models in privatization. The dominant owners (State) should define the Program of consolidation and privatization based on the new evaluation of the nature and capital profitability.
Typical foodstuffs in tourist supply of Istria
Authors: Koprivnjak Olivera , Milotić Aldo , Peršurić Đordano
Published: May 2021

The tourist supply of every country longs for peculiar quality and identifiability. The typical foodstuffs are one of the climate, cultural inheritance and traditions of a country. In this paper, the authors first explain the definitions and procedures designed by international regulations concerning typical foodstuffs with controlled denomination of origin. The authors have investigated the interests and the opinions of tourists and subjects in trade and catering, about typical foodstuffs from Istria. By comparing the regulations, it was concluded that Croatian regulations do not follow the trends in West-European countries. The research results show that foreign tourists are very interested in typical istrian foodstuffs. However, their interest is lessened because those products are relatively expensive and have no guaranty of quality and origin.
Is there a clear strategy and tourism development policy in Croatia?
Authors: Kobašić Antun
Published: May 2021

There is in Croatia only one public document on tourism development. The Document is named "Development Strategy of Croatian Tourism". Some elements of development strategy are formally built into this Document, thus qualifying it as an orientating document of development on macro level. Along with undoubted benefit of such an orientation this Act is deprived of many elements in making sense and clarifying this strategy. But, the greatest deficiency is the lack of a clear determination regarding tourism development policy and measures for its implementation.