bluuebunny/crossref_metadata_2025 huggingface dataset:
Sobrevida en pacientes con cirrosis de acuerdo con su etiología. Cohorte retrospectiva
Authors: Prieto-Ortiz Jhon Edison , Garzón Orjuela Nathaly , Sánchez-Pardo Santiago , Prieto-Ortíz Robin Germán , Eslava Schmalbach Javier
Published: March 2022

Introducción: la cirrosis es el estadio final de enfermedades hepáticas crónicamente progresivas de diferentes etiologías. Es una enfermedad frecuente, con una prevalencia variable en cada país. Su pico de incidencia se presenta entre los 40 y 50 años, predominantemente en hombres.

Objetivos: comparar una cohorte de pacientes con diagnóstico de cirrosis, evaluar sus complicaciones y sobrevida de acuerdo con su etiología, describir los aspectos clínicos y de laboratorio, y determinar el papel del hígado graso.

Materiales y métodos: se realizó un estudio de cohorte retrospectiva, en donde se incluyeron pacientes que asistieron a consulta especializada de hepatología en el centro de enfermedades hepáticas y digestivas (CEHYD), en la ciudad de Bogotá, durante enero de 2010 y junio de 2019.

Resultados: se revisaron un total de 1200 historias clínicas (56,8 % mujeres). No se evidenció diferencias estadísticamente significativas en las medianas de sobrevida entre los grupos por etiologías, sexo, presencia o no de complicaciones, o Child. Se evidenció que entre mayor edad en el diagnóstico de cirrosis, el riesgo de muerte es mayor; HR 1,04 (IC 95 % 1,02-1,075). Por cada mes que aumenta el seguimiento se reduce el riesgo de muerte en 90 %; HR 0,1 (IC 95 % 0,03-0,29). Por cada mes que aumenta el seguimiento de las complicaciones se reduce el riesgo de muerte en 2 %; HR 0,98 (IC 95 % 0,97-0,99).

Conclusiones: La sobrevida por etiología fue similar en los diferentes grupos. La esteatohepatitis no alcohólica (NASH) fue la principal causa de cirrosis en esta cohorte. Se deben orientar esfuerzos a su diagnóstico y manejo en fases tempranas.
Manejo quirúrgico de la necrosis pancreática infectada. Serie de casos en un hospital de cuarto nivel en Bogotá, Colombia, 2014-2021
Authors: Rey Chaves Carlos Eduardo , Ricaurte Alberto , Gómez Monica , Gonzalez Pablo , Castillo Felipe
Published: March 2022

Introducción: la pancreatitis es una patología frecuente en nuestro medio, mayormente relacionada con la patología biliar benigna. Esta puede progresar a formas severas en 10 %-15 % de los casos, en donde el tejido pancreático se necrosa y forma grandes colecciones, con riesgo de infección. En Colombia no conocemos los datos epidemiológicos acerca de la incidencia de este tipo de complicaciones, ni del manejo de las mismas.

Objetivo: este estudio tiene como objetivo estudiar la prevalencia de la necrosis pancreática infectada y describir los casos identificados en un hospital de alto nivel de complejidad entre 2014 y 2021.

Métodos: estudio observacional de corte transversal. Se analizaron los registros de pacientes diagnosticados con pancreatitis en segunda etapa. Se estudiaron aquellos casos que presentaron necrosis pancreática infectada y se sometieron a desbridamiento más drenaje quirúrgico por vía laparoscópica y abierta en el Hospital Universitario Mayor Méderi de Bogotá, Colombia, entre enero de 2014 y enero de 2021. Se realizó un muestreo por conveniencia, sin cálculo de tamaño de muestra. Se recolectaron variables demográficas y clínicas de los pacientes. Se realizó un análisis estadístico descriptivo de las variables obtenidas en Excel. Las variables cualitativas se describieron a través de frecuencias absolutas y relativas; mientras que las cuantitativas se expresaron mediante medidas de tendencia central y de dispersión en función de su distribución.

Resultados: se analizaron 1020 episodios de pancreatitis y se evidenció necrosis pancreática en 30 pacientes, es decir, una prevalencia de período de 2,9 %. De los pacientes, 83 % (n = 25) se llevó a drenajes por vía abierta, con un 48 % (n = 12) de mortalidad. En relación con el manejo por vía laparoscópica, la reducción en la falla orgánica posoperatoria fue de 40 % (n = 2), con un 30 % menos de duración en la estancia hospitalaria, comparado con la vía abierta. Aquellos pacientes que presentaron un nivel de procalcitonina (PCT) menor de 1,8 ng/mL tuvieron menos mortalidad.

Conclusiones: el abordaje laparoscópico muestra resultados prometedores en cuanto a la morbilidad y mortalidad final observada.
A Time Series Classification Dataset Based on the Average Price of Concrete in major Cities in China
Authors: Liu Qing , Lee Woon-Seek , Du Min
Published: March 2022

Time series classification (TSC) is an important and challenging problem
in data mining. Time series data sets are an important basis for this
research and are widely used in baseline verification of various
algorithm models. Aiming at the problem that there are few domestic data
sets and the current TSC data set is relatively old, a new data set for
TSC task is established based on the average price data of concrete in
major cities in China, which provides new data support for the research
of TSC algorithm. We made use of the data center of Oriental Fortune to
disclose the sample data of the average price of concrete from
2013-10-23 to 2021-01-20, created 730 autoregression-based series data
sets by using sliding windows of different lengths, and then selected
the appropriate sliding window length through machine learning model
verification, finally, convolutional neural network (CNN) and long and
short memory (LSTM) network, which are good at processing temporal
features, are used to verify the data and prove the validity of the
dataset. The dataset is freely available at
https://gitee.com/lq2012/tsc-dataset.
A traveling wave with a buffer zone for asymptotic behavior of an asymmetric fixed credit migration model
Authors: Liang Jin , Lin Yang
Published: March 2022

In this paper, we introduce a new traveling wave with a buffer zone,
which is approached by an asymmetric credit migration model with fixed
migration boundary. The asymptotic behavior of the solution of the model
is discussed. By constructing two sets of sub and super solutions
sequences, it is proved that the solution of the credit rating migration
model approaches the new traveling wave with buffer zone as time goes to
infinite in a direction. Additionally, some numerical results are
presented.
Análisis temático de la producción científica indizada en MEDLINE sobre exposición profesional en los servicios de atención de salud a domicilio
Authors: Sanz-Lorente María , Guadiola-Wanden Berghe Rocio
Published: March 2022

Objetivo: Analizar y caracterizar, mediante el análisis temático, la producción científica indizada en MEDLINE sobre exposición profesional en los servicios de atención de salud a domicilio.
Método: Estudio descriptivo transversal. Los datos se obtuvieron de la base de datos MEDLINE, a través de PubMed, interrogando los términos a estudio en los campos de descriptores, título y resumen; fecha final de búsqueda 20 agosto de 2021.
Resultados: Evolución de la producción científica creciente (R2 = 0,23). El número de originales fue de 51 (15,09%), siendo la frecuencia y porcentaje de los artículos citables 58 (80,56%). La obsolescencia fue de 14,71 ± 1,13 años con Índice de Price del 16,67%. Se observó el uso de servicios de cuidado domiciliario como Major Topic en 38 (52,78%) artículos y de exposición laboral en 54 (75,00%) artículos.
Conclusiones: Quedó patente que los descriptores control de infecciones y la transmisión de enfermedades infecciosas del paciente al profesional con el de lesiones por pinchazo de aguja y el de patógenos de transmisión sanguínea, mostraron el mayor riesgo de exposición laboral de los profesionales de los servicios de atención a la salud en el domicilio.
The role of the river, active landscape and greenery in the formation of urban development in Kyiv
Authors: Markovskyi Andrii , Tovbych Valerii , Lagutenko Olga
Published: March 2022

The article analyzes the influence of the water artery – the Dnieper River and the active relief on the specifics of the city development on the example of Kyiv since ancient times. The specifics of the development of Kiev was that this development began from the territories close to the Dnieper, located on the right steep bank of the city. It is proved that initially the maximum use of proximity to the river and active Landforms was applied exclusively for religious dominants, whereas since the Soviet era, this vector has radically changed first towards representative ideological buildings, and in modern conditions – towards commercial multi-storey residential development. The purpose of the article was to trace how the waterway – the Dnieper River, accent landforms and landscaping influenced the formation of Kyiv during its existence, as well as to determine the features of the influence of these natural components on the modern development of the city. The scientific novelty of the study lies in a comprehensive coverage of the relationship between the natural components and development of Kyiv from ancient times to the present, identifying modern problems, their causes and ways to overcome them.
Investigating the Effect of Coriolis Force In A Vibrating Pipeline
Authors:   1Department of Mechanical Engineering, Federal University of Technology Minna, Nigeria 2Department of Mechanical Engineering, Nuhu Bamalli Polytechnic, Zaria, Nigeria, Bori Ige , Mudjere Kingsley , Okegbile Olawale james , Ayo Samuel Adinoyi , Bako Sunday
Published: March 2022

Pipelines conveying fluids are bound to vibrate during operation and if not properly handled from the design stage, there will be tendency of failure. This paper aims at studying the behavior of a pipe under the influence of a coriolis force for when conveying crude oil and natural gas only. A pipe under fixed ends condition was considered using finite element method based on Hamilton principle to determine the deformation mode shape behavior pattern, and this was validated using ANSYS software simulations. It was observed that the pipe exhibited the same behavioral pattern for crude oil when Coriolis force was enabled in both the finite element method and the ANSYS software simulation method. On the other hand, it was observed that the pipe exhibited the same behavioral pattern for crude oil when coriolis force was not enabled in both the finite element method and the ANSYS software simulation method, though the ANSYS simulation method tend to exhibit a more uniform and accurate pattern than the finite element method because of the two elements considered in the finite element method. It is a known fact that the higher the number of elements, the more accurate the finite element results would be. In view of this limitation, it was recommended that for similar works to be carried out in future, the number of elements should be increased more than two for more accurate results. Keywords: Coriolis Force, Finite Element Analysis, ANSYS Simulation
Brow Lift
Authors: Coviello Caitlin M. , Sivam Sunthosh K.
Published: March 2022

Brow lifting techniques have applications in periorbital facial rejuvenation, establishing improved symmetry, and addressing sequela of facial paralysis. An understanding of fascial planes, mimetic muscles, and neural anatomy guides safe surgical planning. Preoperative assessment should include a thorough history, physical exam with focus on the upper horizontal third of the face, and photo documentation. Selection of operative technique and potential fixation should be individualized to the patient. Botulinum toxin can be used to elevate the position of the brows.
This review contains 13 figures, 4 tables, and 29 references
Keywords: brow lift, upper facial anatomy, facial analysis, brow lift surgical technique, brow lift surgical approach, endoscopic brow lift
The first social project to popularize organ donation in Tatarstan based on the experience of the United States of America
Authors: Anisimov A. A. , Gilmetdinova E. S. , Mulendeeva M. A. , Anisimov A. Yu.
Published: March 2022

Relevance. The United States of America is currently one of the world leaders in organ donation and transplantation. In 2020, donor activity in the United States amounted to 38.0 per 1 million of the population, even exceeding the number in Spain 37.9 per 1 million of the population. In this context, the study of the American system of organ donation and transplantation in order to develop an accessible format for interaction with the population to strategically stimulate the potential of organ donation is of particular interest.Aim. To study the organ donation and transplantation system in Nebraska, United States of America, to develop an accessible format for interaction with the population to strategically stimulate the potential of organ donation in the Republic of Tatarstan.Material and methods. We presented the experience of the international internship «Organ donation and transplant management » at the University of Nebraska Medical Center (USA). We described the peculiarities of the functioning of the American transplant programs, the advantages in the matter of organizing organ and tissue donation.Results. In the USA, with a population of 327 million people, today more than 165 million (51%) people are registered as potential donors. At the end of 2018, in the United States 36,428 transplants of various organs and tissues, or 111.4 per 1 million population, were performed. At the same time, the number of deceased donors was 10,700, the number of living donors – 6,800. At the University of Nebraska Medical Center during the same period, 301 transplants (158.4 per million population) were performed from 68 deceased and 40 living donors. The analysis of the American system of organ donation and transplantation with effective interaction of the state, commercial and non-profit sectors, independent of the National Health System, made it possible to organize in 2020 the first social project in the Republic of Tatarstan on organ donation – "Donate Life Russia".Conclusion. The experience of the Republic of Tatarstan in attracting the non-profit sector to solving problems in the development of the transplant programs, following the example of the United States of America, has high potential in the Russian Federation.
Transplantation of cells of the oral mucosa in the treatment of limbal stem cell deficiency
Authors: Tselaya T. V. , Chentsova E. V. , Borovkova N. V.
Published: March 2022

The actual problem of treatment of patients with limbal cell stem deficiency is reviewed. We summarized practical experience in various fields of medicine, aimed at tissue reconstruction using cells of the buccal mucosa. In ophthalmology, an effective method has long been searched to treat patients with the limbal stem cell deficiency causing an intense opacification and vascularization of the cornea and followed by a significant decrease in visual acuity. Recent studies have shown that the transplantation of epithelial cells of oral mucosa can significantly improve the treatment of patients with this disease. Although the mechanisms of oral mucosa epithelial cells' action are still insufficiently studied, the existing positive experience of oral mucosa using for tissue repair has great interest to practitioners, giving potential possibilities of its use, therapeutic effectiveness and ease of obtaining. A brief review of the literature presents the description of the morphological features of the. buccal mucosa and the analysis of published data about the use of buccal epithelium in various branches of medicine and in ophthalmology, in particular.
МЕТОД ІНІЦІАЦІЇ ХЕНДОВЕРУ В ПРОГРАМНО-КОНФІГУРОВАНІЙ БЕЗПРОВІДНІЙ МЕРЕЖІ НА ОСНОВІ ПОКАЗНИКА ЯКОСТІ СПРИЙНЯТТЯ ПОСЛУГ
Authors:   Національний університет ", Медвецький М. ,   Львівська політехніка", Бешлей М. , Прислупський А. , Бешлей Г.
Published: March 2022

Зважаючи на значне збільшення кількості інтелектуальних пристроїв із модулями Wi-Fі, а також прогноз зростання споживання даних на наступні роки, необхідно розробити нові методи побудови безпровідних Wi-Fі мереж з метою поліпшення якості сприйняття послуг з боку кінцевих користувачів. В роботі удосконалено концептуальну модель побудови програмно- конфігурованої Wi-Fі мережі, яка, на відміну від відомих, основана на централізованому управ- лінні процесом вибору точки доступу обслуговування із використанням SDN контролера, за допомогою якого, здійснюючи моніторинг стану мережі в режимі реального часу, програмно реалізують власні рішення щодо ініціації хендоверу. Розвинено метод ініціації хендоверу в про- грамно-конфігурованій безпровідній Wi-Fі мережі, який, на відміну від відомих, під час при- йняття керуючого рішення щодо вибору точки доступу обслуговування орієнтується на інтеграль- ний критерій QoE, сформований на основі вимірювання у режимі реального часу параметрів, рівня сигналу, пропускної здатності, втрати даних та затримок у мережі Wi-Fi, що дало змогу поліпшити якість сприйняття послуг з боку кінцевих користувачів. Розроблені науково-прикладні рішення щодо процедури хендоверу на основі QoE критерію зможуть на практиці застосовувати науково- дослідні організації, компанії, оператори мобільного зв’язку для покращення якості сприйняття послуг з боку користувачів у мережах із централізованим управлінням.
СИСТЕМА АВТЕНТИФІКАЦІЇ НА ОСНОВІ АНАЛІЗУ АКУСТИЧНИХ СИГНАЛІВ
Authors:   Національний технічний університет України “Київський політехнічний інститут імені Ігоря Сікорського”, Отрох С. , Андрійчук О. ,   Інститут проблем реєстрації інформації Національної академії наук України,   Національний технічний університет України “Київський політехнічний інститут імені Ігоря Сікорського”, Гусейнов Р. ,   Національний технічний університет України “Київський політехнічний інститут імені Ігоря Сікорського”, Олєнєва К.
Published: March 2022

У роботі досліджені питання автентифікації та авторизації користувачів в системах, які працюють в мережі Інтернет, розглянуто проблему надійності отримання доступу та варіанти покращення і підвищення рівня безпеки та збереження даних користувачів. В статті запропоновано вирішення проблеми підвищення надійності за рахунок розробленої системи автентифікації з використанням аналізу звукових сигналів. Доведено, що проблема захисту облікових засобів користувачів стає тільки важливішою з розповсюдженням інтернет технологій в житті пересічних людей
Автоматизація вибору оптимальних проектних варіантів систем зв'язку на основі методів багатокритеріальної оптимізації
Authors:   Харківський національний університет радіоелектроніки, Чеботарьова Д. , Безрук В.
Published: March 2022

Стаття присвячена проблемі вибору оптимального проектного варіанту систем зв’язку з урахуванням на формалізованому рівні сукупності суперечливих вимог та сукупності показників якості. В статті запропоновано використовувати методи багатокритеріальної оптимізації для вибору оптимальних варіантів систем зв’язку: метод дискретного вибору за безумовним критерієм переваги та метод, заснований на теорії корисності. Представлено методику вибору оптимального варіанту, розглянуто приклад вирішення задачі вибору оптимального варіанту системи мобільного зв’язку на номінальному етапі планування мережі. Для вирішення задач вибору оптимальних проектних варіантів методами багатокритеріальної оптимізації розроблено спеціальну програму, яка автоматизує процес роз’вязання задачі вибору оптимальних рішень на основі використання методів багатокритеріальної оптимізації.
БАГАТОПАРАМЕТРИЧНА МОДЕЛЬ ПРИСТРОЮ СТЕЖЕННЯ ЗА ЧАСТОТОЮ ТА ІНТЕРФЕЙС ПРОГРАМИ ДЛЯ ЇЇ АНАЛІЗУ
Authors:   Національний університет ", Бондарєв А. ,   Львівська політехніка", Бударецький Ю. ,   Національна академія сухопутних військ імені гетьмана Петра Сагайдачного, Олійник М.
Published: March 2022

Стаття присвячена проблемі пректування пристроїв стеження за частотою у складній сигнальній та завадовій обстановці. У статті наведена математична модель пристрою, яка враховує можливі структурні та параметричні зміни пристрою, зміну частоти вхідного сигналу, його кутову модуляцію та змінний в часі рівень шуму у вхідній суміші. Розроблена та описана програмна оболонка для аналізу цієї моделі дає можливість оперативної зміни значень параметрів та спостереження реакції пристрою на зміну вхідного сигналу. Розроблена модель та програмна оболонка застосовані до аналізу приймача радіонавігаційного GPS сигналу та радіолокаційного відбиття від великого реаутивного літака і відбиття від артилерійського снаряду.
The development of non-doped oled based on donor-acceptor tetrachloropyridine-carbazole material with the emission in "deep-blue" region
Authors:   Lviv Polytechnic National University, Kutsiy S. , Danyliv Y. , Danyliv I. , Hladun M. ,   European University, Barylo N. ,   Lviv Polytechnic National University, Stakhira P. , Fechan A. , Gorbulik V. ,   Yuriy Fedkovych Chernivtsi National University
Published: March 2022

The development of efficient organic light emitting diodes (OLED) based on the phenomenon of intramolecular thermally activated delayed fluorescence (TADF), in the design of which there are no blue phosphorescent emitters based on rare earth metals, still remains a challenge in the development of new lighting systems and OLED displays. The article proposes a technological approach to the formation of new type of OLED, where the emitter is an organic donor-acceptor molecular material 9- (2,3,5,6-tetrachloropyridin-4-yl) -9H-carbazole (4-CzPyCl4), in which electronic interaction between the donor and acceptor fragment plays a key role in the mechanism of delayed fluorescence. The design of the developed light-emitting heterostructure uses layer-by-layer formation of functional nanosized organic films, in contrast to traditional OLED designs of dark blue color radiation, which uses a guest-host systemThe external quantum efficiency of the developed OLED is 2.8%. The maximum brightness of 3,000 cd/m2 is reached at a voltage of 15 V. The chromaticity coordinates CIE (x, y) 1931 are (0.15, 0.13), which corresponds to the “dark blue” emitting spectral zone.
CRISPR-Cas Technology, the Tool of the Future
Authors: Esquivel Álvarez Alejandro , Quesada Morales Elías , Villegas Calero María Paz , Matarrita Brenes Daniela , Rojas Salas María Fernanda , Madrigal Redondo German , Chavarría Rojas Marianela , Baltodano Viales Eleaneth
Published: March 2022

The CRISPR-Cas system discovered in the eighties consists of a series of RNA proteins that signal and messengers of the immune system in prokaryotic organisms to protect against invading antigens of various sources. After the CRISPR-Cas discovery, many research advances were made in the following decades regarding knowledge, techniques, and applications. This showed the system could edit the DNA in an exact and specific manner, which made it very promising to exploit it in various fields, such as the therapeutic field. New therapies of various diseases, industrial applications, food manufacturing, among others, make its impact quite relevant. The following review will focus on the fundamental understanding and implications of CRISPR-Cas techniques has with an ethical and legal view. In addition, to explore some of the applications present and future in the healthcare department, some methods of drug delivery in gene therapy, and new research that is being developed with the CRISPR-Cas technology.
Maxillary Complete Denture Buttressed with Metal Denture Base and Amalgam Stops Opposing Deranged Occlusal Plane: A Case Report
Authors: Rathee Manu , Chahal Sujata , Ahlawat Anamika , Alam Maqbul , Divakar S , Singh Sandeep
Published: March 2022

Fracture of a single maxillary complete denture is a common occurrence in patients with opposing retained natural mandibular teeth. Factors like flexural fatigue caused by cyclic deformation, as well as those that aggravate the deformation of the denture base or change its load, have all been linked to the midline fracture. This case report presents oral rehabilitation of a completely edentulous maxillary arch opposing natural mandibular dentition using metal denture base and reinforcing acrylic teeth using amalgam stops along with establishing plane of occlusion with the help of a customized template to improve the longevity of the prosthesis. Single complete denture opposing natural dentition is a challenging job for the prosthodontist due to the biomechanical differences in the supporting tissues. As a prosthodontist, we must provide the patient a stable and functional prosthesis.
Water for Domestic Animal Drinking Based on the Categorization of Species in an Urban Brazilian Slum
Authors: Da Silva José Natanael Tavares , Bezerra Sabrina Rafael , Vasconcelos Ulrich
Published: March 2022

Every animal needs safe water for drinking. The quality of this water is essential for welfare. This study discusses on the quality of water furnished to about 50 domestic animals based on the categorization of species practiced by residents at São Rafael slum, located in the city of João Pessoa, Brazil. The drinking water comes from three sources: municipal supply system, bottled mineral water and directly from the Jaguaribe River. The water perceived as safest was the same as offered to pets. Domestic animal water samples were tested and rated as not recommended in more than 65% of the samples. The density of thermotolerant coliforms ranged between 0 and 11,000 cells/100 mL. One third of the samples considered unsuitable for animal watering were also outside the recommended pH. In addition, a differential behavior was observed in the choice of water source according to the caretaker's perception of safety. Dogs and cats, considered family members, received the same water as consumed by the family. Even these, 38.5% of the samples, were rated as not recommended and represented a risk to the health of all those who consumed it.  As well, a need for good practices of hygiene in water management and cleaning of water dishes, tanks and troughs was seen.
Developing Cross-Platform Library Using Intel Multi-OS Engine
Authors: Mohammed Dilkhaz Y. , Cooper Peter A.
Published: March 2022

Mobile application development services have reached a higher level with APIs. Developers create and develop applications for mobile devices, and they often rely on APIs for connectivity. An API is the functions and methods in a library that a programmer can call to ask it to do things for you; it's the interface to the library. A library is a set of classes that a programmer can use to solve a certain problem, but it doesn’t change your code at a structural or architectural level. The significance of libraries in the creation of mobile applications cannot be overstated. Others can use the programmer's library, created, and shared with the rest of the world, in their own projects as a result of his efforts. In this paper, the programmer uses Java Object-Oriented Programming to provide a way to share code across platforms and gives the possibility to develop native cross-platform mobile applications. The purpose of this work is to create a taxi service library for developers using both Android and iOS using Java programming with the help of Intel’s Multi-OS Engine Framework, Retrofit, and GSON utilities, which were also used in this project. In developing a Java open-source project, the common conclusion the programmer always ends up with is to share the produced outcomes with the developer community, which should be the least objective in the Java world.
Resilience to Cheating among Students at Felix Houphouët-Boigny University of Cocody (Abidjan, Côte d’Ivoire)
Authors: Anon N'guessan , Stéphane N’goran N’faissoh Franck
Published: March 2022

This study aims to understand the phenomenon of resilience to cheating among students at Félix Houphouët-Boigny University, where the research took place. The research was based on 211 participants from different training and research units. The level of study varies from Bachelor to Master. Data were collected using a survey questionnaire. The advantage of this instrument is that it is the most suitable way to collect large amounts of data. The results obtained reveal that exogenous factors (level of study, preservation of the image of the family and valuation of learners’ efforts at work by teachers) and endogenous (personal effort and commitment and development of capacities to be autonomous, to not be dependent on others) best explain the resilience to cheating among UFHB students.
Table Token Generator and Indicator in Restaurant using Micro-controller
Authors: Ahmed Nyme , Woishe Methila Farzana , Sultana Nila , Bristy Tamanna Zaman
Published: March 2022

Over the years, technology has vastly modernized the restaurant industry. Much of the innovation has been with Point of Sale (POS) operations. But still there is some scope to improve the customer service. In this paper, we proposed a solution that makes interacting with waiters much easier, faster, and more convenient. There are few systems which are being developed in Arduino as a table token system. As a microcontroller, Arduino is an advantageous hardware that can be programmed to be used for a variety of applications. This study is based on giving a better experience to customers by improving the response time. Instead of yelling or using some bells, customers can generate a token by pushing a button. With this the waiter can be informed which table needs attention and quickly respond to the needs of the customer. Moreover, this will allow the customers to experience a quiet and fine dining atmosphere which in future will insure better customer loyalty and profit for the restaurant. In a nutshell, this paper deals with designing a system that will make interacting with waiters as well as serving customer smoother and more affordable.
Gender Analysis of Labor Contribution Among Maize Farming Household in Agricultural Zone C of Kogi State, Nigeria
Authors: Hauwa Bako , Umar Haruna S. , Salau Emmanuel S. , Shehu Ibrahim , Bako Sani
Published: March 2022

This study analysed the gender labour contribution among maize farming households in Agricultural Zone C of Kogi State, Nigeria. A multi-stage sampling technique was used to select 160 households from which the males and females were interviewed. Data collected were analysed using descriptive statistics. The mean age of male respondents was 40 years while that of female respondents was 33 years. Average income of male farmers was ₦147,321.9 while that of female farmers was ₦143,475.0. The average household size of the respondents was 8 persons. Male respondents were more dominant in tertiary education than female respondents. The result on labour contributions reveals Men dominated in all the maize production activities except planting/sowing where women provided 72.1% of the labour. In extreme instances such as harvesting men provided 100% of the labour needed. Land preparation had 66.5% contribution from the male respondents while the females offered only 33.5%. Male contribution in tilling was 78.8% to the female 21.2%. In making ridges men provided 71.3% against the female 28.7%. In planting/sowing, the only activity women had dominance in, women were seen to have provided 72.1% of the labour contribution against 27.9% of the labour male respondents provided. Furthermore, 70.7% of the labour provided for weeding came from the male folks while the females provided 29.3% of the labour. Male respondents provided 89.9% of the labour for fertilizer application as against the 10.1% provided by the female respondents. Pesticide application was 73.8% of the male against 26.2% of labour contribution. Transportation saw men provide 98.5% of the labour against the 1.5% provided by the female. The results on constraints revealed that poor access to farm inputs was 91.3%  for male, while that of female was 96.3, poor transport systems were 88.1%  for both  male and female, lack of storage/processing facilities was 86.3% for both male and female  and poor access to credit was 95.0% while the female was 97.5%. It can be concluded that male gender in the household dominated the female gender in terms of labour contribution in the study area. Most constraints identified bother around institutional and infrastructural inadequacies in Nigeria’s rurality therefore there should be provision of better extension service, access to credit facilities and motorable roads in rural areas in study area.
Evaluation of Maize/Soybean Blends for Snack Production by Extrusion Cooking
Authors: Osibanjo A. A. , Sowbhagya C. M. , Olatunji O. O.
Published: March 2022

The effect of component raw material ratio and extrusion temperature on physico-chemical and mechanical characteristics as well as acceptability of some snack products was investigated. Five different blends of maize and soybeans were extruded at five different temperatures in a total of nine runs, using a computer aided experimental design. Maize was found to enhance colour and expansion while soybeans enhanced textural characteristics of the extrudates. Extrudates of blends had better physico-chemical and textural properties than those of maize or soybean alone. Temperature also enhanced textural and mechanical properties. The sample with optimum characteristics and most acceptable is a 75/25 maize/soybean blend extruded at 150 oC, followed by the 82/18 blend at 168 oC.
The Pannonian Plain: Denomination, Definition and Subdivision
Authors: Gaudenyi Tivadar , Mihajlović Milan
Published: March 2022

The Pannonian Plain is a landscape- and a physico-geographic unit. It encompasses the plain, lowland landscapes of the Pannonian realm. If we follow the Pannonian Plain along the Danube valley, it starts from with Vienna Basin continues downstream till the Iron Gate.

The Pannonian Plain (Pannon-alföld / Panonska nizija) can be subdivided in six landscape units. The three main units are: the Vienna Basin (Wiener Becken), the Little Alföld (Kisalföld) and the Alföld. The three smaller units have some kind of connections with the Alföld they are the Inner Somogy (Belső Somogy), the western Drava Plain (Donja Podravina) and the Upper Sava Plain (Donja Posavina).

The Pannonian Plain has no synonyms. the terms Pannonian Basin, Pannonian realm, Pannonian Basin System as well as the Carpathian Basin have different meanings and context.
How to Interpret Gravitational Events in the Newton´s Rotating Bucket? (Gravitational Phonons)
Authors: Stávek Jiří
Published: March 2022

The Newton´s rotating bucket with gravitational events occurring in that bucket is a starting point for any new model describing gravitational situations and serves as a “filter” for any proposed gravitational model. The topic of this contribution is to describe the self-organization of H2O molecules in the rotating bucket based on the Einstein-Shannon (ES) log-normal distribution of gravitationally redshifted velocities of H2O molecules. The joint co-operation of the Earth´s gravitational field with the centrifugal force acts as that “hidden” organizing agent. H2O molecules transfer the gravitational phonons and reflect them on the surfaces of the wall, bottom, and the water surface of Newton´s bucket and form the 3D paraboloid. Five new experimental predictions are proposed and compared with the experiments. The external observer is unaware that the H2O molecules in Newton´s bucket are phonon velocity-organized due to the Earth´s gravitational redshift and the rotation of Newton´s bucket. The microscopic interplay of gravitational phonons inside of Newton´s bucket is hidden from the macroscopic analysis of the external observers. The external observer claims that these centrifugal forces are fictitious. In order to discover the real actions of those self-organized forces, the observer has to be a part of the rotating system in the presence of the Earth´s gravitational field or to study the rotating system in proposed experiments.
Source of Occupational Conflict at Greek Municipal Sports Organizations
Authors: Kosmas Ioannis , Gargalianos Dimitris , Georgiou Yannis
Published: March 2022

Purpose: The purpose of this paper is twofold. At first, to examine the role of political influence in public administration using the non-productive occupational conflicts in Municipal Sport Organizations (M.S.Os). At second, to investigate which might be the particular aspects of conflict creation.
Design/methodology/approach: The study used information extracted from semi-constructed interviews. Interviewed participants were employees of different municipal sports organizations of the Region of Attica Greece. They also belong to different occupational levels.
Findings: The results indicated that the employees in municipal sports organizations detect the roots of interior conflicts in the political influence, which is a practice as an indirect pressure of the elected management members of the board, to implement a certain policy. The results also revealed a new source of non-productive occupational conflict referred to as “the man close to the President”.
Practical implications: Conflicts in the interior of a municipal sports organization adds extra cost. Having knowledge of the deeper causes of a conflict, managers and board members can work in advance in certain procedures to avoid the creation of such situations. This will guide the board and the management of the organization in wiser funds use, and it will help in the creation of a much better organizational environment.
Originality/value: This study fills a significant gap in the existing literature. Concerns both the political influence of elected members of a municipal sports organization board as causes of conflicts and particular aspects, which provoke conflict, detected and named as the man next to the president.
Assessment of Acaricidal Efficacy of Ivermectin Against Ectoparasitic Skin Lesions in Goats
Authors: Kabir Aurangazeb , Islam Md. Khairul , Yasmin Most. Sabina , Alam Md. Emtiaj , Rahman Mohammad Mahbubur
Published: March 2022

We have conducted a research experiment to investigate the efficacy of commercial Ivermectin preparations (Ivertin®, Invet®, and A-Mectin®) against skin lesions in goats. The generic Ivermectin is, in fact, a naturally-derived dihydro derivative of avermectin originating exclusively from a single microorganism isolated from Japanese soil, displaying an extensive range of antiparasitic efficacy against internal and external parasites of human and domestic animals. The ectoparasites such as ticks, lice, and mites cause heavy economic losses to the livestock industry due to their blood-sucking habit, which adversely affects economic production. Ectoparasites have been recognized as the notorious threat due to severe irritation, formation of crust, wrinkled, thickened, and or loss of hair, allergy, and toxicosis and eventually brought about financial havoc in goat farming. Presently, this is the best-known drug available for combating ectoparasitic diseases in livestock. After being bound, the drug disrupts parasitic neuro-muscular transmission, causing hyperpolarization of the neuronal membrane, inducing paralysis of somatic muscles, particularly the pharyngeal pump, killing the parasites. To investigate the comparative efficacy of commercially available different ivermectin preparations in the local market against skin lesions in goats, the research work was conducted on 12 goats of both sexes having skin lesions from July to August 2017. Subcutaneous injection of Ivertin® of Chemist Laboratories Ltd, Invet® of Popular Pharmaceuticals Ltd, and A-Mectin® of The Acme Pharmaceuticals Ltd, Bangladesh @ l ml per 50 Kg bwt where each ml contains 10mg of generic Ivermectin on the first day followed by the second dose at 7thday and the third dose at 14th day of experimentation. Our results revealed within 28 days of treatment with these preparations of Ivermectin, both smaller and larger skin lesions in goats of all experimental groups were almost cured at a rate of 99%. No adverse effect was observed following ivermectin therapy. The animals were seen with increased vigor, better growth, and improved coat color. Although the precise mode of action and interactions of Ivermectin is yet to be revealed fully, the drug certainly had a tremendously positive effect in alleviating ectoparasitic diseases from goats.
The Coanalytic Problem of Periodic Function Continuation in Spaces with a Weight Having a Singularity at the Boundary
Authors:   NRU MPEI, Zubkov Pavel V.
Published: March 2022

It is known that any periodic square-summable function with a power-law weight in a half-strip is uniquely represented as an orthogonal sum of analytic and coanalytic components; therefore, it is natural to regard the coanalytic component as a certain nonanalyticity characteristic of the function. The article considers the problem of finding a periodic function extension so that it would deviate from the weighted Sobolev subspace of analytic functions to a minimal extent (the problem of minimizing the coanalytic deviation). In my previous publication, I considered the problem of extending a function to inside a circle in spaces with a weight that has a singularity at the boundary. Other researchers studied similar coanalytic problems in the weightless case for the unit circle, half-strip, and an arbitrary bounded simply connected domain with a smooth boundary. The coanalytic problem is formulated in the spaces of periodic functions with a weight having a power singularity at the boundary, and the boundary values of the functions are taken from the corresponding Besov space. The known properties of weight spaces, including the direct and inverse theorems about the traces of functions from the classes under consideration have been formulated. Using these properties, a theorem about the existence and uniqueness of the coanalytic problem solution is proved within the principles of the monotone operator theory.
The Influence of Non-Condensable Gas on the Control Range of Variable-Conductivity Heat Pipes
Authors:   NRU MPEI, Savchenkova Natalya M. , Panin Yuriy V. ,   JSC «NPO im. Lavochkina», Kuznetsov Igor O. ,   NPP «Thermal Units and Systems» LLC, Goncharov Konstantin A. ,   NPP «Thermal Units and Systems» LLC, Kholyakov leksey E. ,   Moscow Aviation Institute
Published: March 2022

One of the important tasks to be solved in designing and manufacturing heat pipes (HP) is the determination of their thermal parameters, taking into account the specified geometry and coolant mass. The task becomes more complicated when in addition to the coolant, non-condensable gas (NG) appears in the heat pipe as a component forcedly introduced for control purposes. This generates the need to develop a model of transfer processes for the designs gas-controlled heat pipes (GCHP) based on widely used axial heat pipes (AHP), the body and the capillary structure of which are manufactured by extrusion as a whole, and to verify it with the developed structures. Options of simulating the operation of an HP with axial grooves for various masses of non-condensable gas with taking into account thermal conductivity and diffusion are considered. This approach made it possible not only to assess the adequacy of the 2D model of heat and mass transfer in the vapor-gas front for a particular GCHP design, but also the possibility of using the same GCHP geometry with various masses of NG to improve the control accuracy. The article presents a calculation for a GCHP with axial grooves, in which the reservoir volume and the evaporation and condensation zone lengths are predetermined. A procedure for testing an axial heat pipe filled with a coolant and non-condensable gas is described. The results on the distribution of temperature fields in the GCHP operation modes with the minimal (10 W) and maximal (100 W) thermal loads at various condensation zone temperatures are obtained. The test results are compared with the calculated data, and a good agreement between them is shown. Despite the fact that the correctness of the procedure has been confirmed, the test result in terms of requirements for the upper control temperature is negative. The required range is 15°C instead of its actual value equal to 32°C. A conclusion was drawn from this result that, given the existing external conditions, the considered pipe geometry cannot ensure the control range from 15 to 30°C. Based on this result, options with a larger reservoir volume without a significant change in the GCHP design and its external dimensions were proposed. It is shown that the GCHP design with axial grooves and a reservoir in the form of an extended casing cannot ensure a control range of more than 25°C even with a ten-fold increase in the NG volume in view of the influence the coolant vapor entering the reservoir has on the NG temperature. Methods for improving the control accuracy are proposed.
A Method of Selecting the Optimal Sites for Construction of RES-Based Power Plants in the Republic of the Union of Myanmar
Authors:   NRU MPEI, Yein Min Thu , Shestopalova Tatyana A. ,   NRU MPEI, Tyagunov Mikhail G. ,   NRU MPEI, He Haiyang ,   NRU MPEI
Published: March 2022

Energy is the main and most universal indicator of the entire human and nature activity. Energy is an important contribution to the economic, social and industrial development processes. Given that fossil energy resources are depleting day by day, the problem of using renewable energy sources (RES) is becoming increasingly more urgent. The use of fossil fuels causes pollution of the environment, which increases from year to year. Therefore, the concept of using renewable energy sources is based on the principles of sustainability, renewability and carbon neutrality. However, the presence or absence of a primary energy resource is not the only condition for efficient use of renewable energy sources. The feasibility of using RES depends to a significant extent on natural conditions, such as seismicity, infrastructural facilities (the availability of power lines, roads, local materials for construction, etc.), political stability (the absence of military conflicts in the RES development zones), and a number of other factors that limit the possibility of efficiently using the available gross energy potential of these sources. In view of the above-mentioned circumstances, it is extremely important to assess the feasibility of constructing RES-based power plants in different regions of the Earth and to clarify various aspects connected with determining the technical potential of RES. The article addresses the above-mentioned problem, and shows how to select the optimal places for construction of RES-based power plants using the method of an analytical hierarchical process with approbating it on the example of the Republic of the Union of Myanmar.
The Classification Quality Assessment Criterion Outside a Training Set
Authors:   NRU MPEI, Gurina Anastasiya O. , Eliseev Vladimir L. ,   JSC «InfoTeCS»; NRU MPEI
Published: March 2022

The article addresses a commonly encountered problem of classification based on machine learning models. Given that attempts to classify objects outside the training sample are prone to yield unpredictable results, the classifiers may operate incorrectly on new data and may also be vulnerable to adversarial attacks. It is conjectured that these problems can be avoided provided that a sufficiently complete assessment of the classifier quality is made. The effectiveness of applying the conventional approach to estimating the classification quality is analyzed. Disadvantages of the conventional quality indicators, which do not allow one to evaluate the risk of errors and degree of machine learning model susceptibility to adversarial attacks, are described. А new classification quality criterion is proposed, which includes four characteristics: Excess, Deficit, Coating, and Approx (EDCA). The characteristics are quantified based on the ratio between the size of the space occupied by the training sample and the results of the classification of all points of the discretized space of features in the working range of their values. An experimental study for visual assessment and comparison of the quality of two multiclass SVM classifiers on characteristic synthetic data sets using the conventional and proposed quality indicators is carried out. The effectiveness and advantage of the newly introduced indicators in comparison with the conventional ones is demonstrated. Good interpretability of the quality indicator values, as well as the subjective consistency between the metrics and expected results from comparison of two SVM classifiers is confirmed. There is a reason to believe that application of the new approach to quality assessment will make it possible to construct more reliable classifiers based on machine learning.