bluuebunny/crossref_metadata_2025 huggingface dataset:
METHODS FOR INCREASING THE EFFICIENCY OF CONCRETE WITH POLYMERS
Authors: Саламанова М.Ш. , Муртазаева Т. С-А. , Бахалаев Ч.Ю. , Дадаев И.Х. , Мусаев И.А.
Published: September 2021

В статье приведены результаты исследований свойств бетонополимеров, подтверждающие эффективность использования пропитки исходных бетонов на основе отходов камнедробления пропиточными материалами. В результате чего улучшаются прочностные характеристики и повышается стойкость к агрессивным средам полученного бетонополимера

Тhe article presents the results of studies of the properties of concrete polymers, confirming the effectiveness of the use of impregnation of initial concretes on the basis of stone crushing waste with impregnating materials. As a result, the strength characteristics are improved and the resistance to aggressive environments of the obtained concrete polymer is increased.
MAIN CHARACTERISTICS OF GRANULATED PHOSPHORUS SLAG (GPS) USED FOR BINDING MATERIALS MANUFACTURING
Authors: Естемесов З. А. , Сарсенбаев Б. К. , Қаршыга Г. О. , Сарсенбаев Н. Б. , Шакей А.М.
Published: September 2021

Обзорный анализ теоретических и экспериментальных известных работ показал, что ГФШ, полученный при охлаждении водой расплава с температурой 1450°С, является пористым материалом со средней плотностью 1200 кг/м3. Состоит он из трех фаз:стекло в количестве 90 - 95 %, минералы (достигает 10 %) и вредные газы (0,3 - 4 %). Благодаря повышенной гидравлической активности - ГФШ может быть использован в качестве минеральной добавки для портландцемента, одного из компонентов для шлакопортландцемента и основного компонента для шлакощелочных вяжущих с марочностью М500 и М1000 соответственно. Одновременно существуют нормативные документы, разрешающие получать вяжущие материалы без очистки и неразрешающие, если ГФШ не очищено от вредных газов. Анализ показывает необходимость применения ГФШ только в очищенном виде.

The review analysis of theoretical and experimental known works showed that GPS obtained by water cooling of the melt with temperature 1450°C is a porous material with average density of 1200 kg/m3. It consists of three phases: glass in quantity 90 - 95 %, minerals (reaches 10 %) and harmful gases (0,3 - 4 %). Thanks to the increased hydraulic activity - GPS can be used as a mineral additive for Portland cement, one of the components for Portland cement slag and the basic component for slag-alkali binders with the stamps of M500 and M1000 respectively. At the same time there are normative documents allowing to receive binders without purification and unauthorized, if GPS is not purified from harmful gases. The analysis shows the necessity to use GPS only in purified form.
INFLUENCE OF POLYTYPY ON PHASE TRANSITIONS IN TlGaSe2 CRYSTALS
Authors: Matiyev A.Ch. , Uspazhiev R.T.
Published: September 2021

It is shown that, in the C-polytype of TlGaSe2 crystals, the structural PT, which occurs at a temperature of T ~ 108 K, is accompanied by an abrupt change in the value of the parameter c (∆c ~ 0.004 Å). For the 2C-TlGaSe2 polytype, the c (T) dependence shows only one clearly pronounced maximum at the temperature Tc2. Moreover, at temperatures that are T1 ~ 30 K higher and T2~ 5 K below Tc2, the Curie-Weiss law is fulfilled. The absence of a fourfold increase in the parameter from the unit cell for 2C-TlGaSe2 samples in the temperature range T = 100-300 K indicates that spontaneous polarization is the order parameter of the ferroelectric PT
FEATURES OF IMPREGNATION OF CONCRETE WITH POLYMERS
Authors: Саламанова М.Ш. , Муртазаева Р.С-А. , Мамакаев А-М. А. , Умаев А.Я. , Хамидов Н-М.М.
Published: September 2021

В статье приведены результаты исследований свойств бетонополимеров, подтверждающие эффективность использования пропитки исходных бетонов пропиточными материалами. Рассмотрен способ пропитки бетонов метилметакрилатом и метилсиликонатом натрия. В результате чего улучшаются прочностные характеристики и повышается стойкость к агрессивным средам полученного бетонополимераРабота выполнена при финансовой поддержке РФФИ в рамках научного проекта № 18-48-200001.

The article presents the results of studies of the properties of concrete polymers, confirming the effectiveness of the use of impregnation of initial concrete with impregnating materials. A method of impregnation of concrete with methyl methacrylate and sodium methylsiliconate is considered. As a result, the strength characteristics are improved and the resistance to aggressive environments of the obtained concrete polymer is increased.This work was carried out with the financial support of the Russian Foundation for Basic Research in scientific project No. 18-48-200001.
PREVENTION OF EMERGENCIES USING INFORMATION TECHNOLOGIES
Authors: Ибрагимова Э.И. , Музышева З.Ш. , Чермоев М.М. , Хатаев М.Ш. , Ахмадов Э.А.
Published: September 2021

Катастрофы природного происхождения, ежегодно уносят сотни тысяч человеческих жизней. Поэтому человечество стремится использовать передовые научныеразработки для своевременного предупреждения чрезвычайных ситуаций. Именно поэтому изучение современных информационных технологий предупреждения чрезвычайных ситуаций, является важным и актуальным вопросом.

Atural disasters, annually claim hundreds of thousands of human lives. Therefore, humanity seeks to use advanced scientific developments for the timely prevention of emergencies. That is why the study of modern information technologies for the prevention of emergency situations is an important and urgent issue.
SOCIO-ECONOMIC PREREQUISITES FOR THE CONSTRUCTION OF MICRO-HYDROELECTRIC POWER PLANTS IN THE REPUBLIC OF KAZAKH- STAN.STATE OF THE ISSUE
Authors: Алдияров Ж.А. , Ибрагимов К. , Артыкбаев Д.Ж. , Акишев У. К. , Байдилла И.О.
Published: September 2021

В данной работе приведены некоторые данные оценочных расчетов энергетического потенциала рек Казахстана и кратко изложено состояние вопроса малой энергетики Казахстана. Рассмотрены современное использование энергетических ресурсов и перспективы их дальнейшего освоения в различных странах, в том числе в Казахстане, определены основные трудности освоения и развития малой гидроэнергетики и состояние данного вопроса в Казахстане. Приведённые факты, анализ перспективного электропотребления позволяет сделать вывод, что применение дизельных станций потребует дополнительного завоза десятков тыс.т. жидкого топлива и это усложняет топливоснабжение этих станций и несомненно является тормозом дальнейшего подъема экономики Республики.

This paper presents some data of estimated calculations of the energy potential of the rivers of Kazakhstan and briefly describes the state of the issue of small-scale energy in Kazakhstan. The current use of energy resources and the prospects for their further development in various countries, including Kazakhstan, are considered, the main difficulties of the development and development of small hydropower and the state of this issue in Kazakhstan are identified. The given facts, the analysis of prospective power consumption allows us to conclude that the use of diesel stations will require additional import of tens of thousands of tons. liquid fuel and this complicates the fuel supply to these stations and is undoubtedly a brake on the further economic recovery of the Republic.
METHODS FOR BOTTOM BOREHOLE ZONE TREATMENT IN WELLS CHECHEN REPUBLIC
Authors: Цуров М-Б. , Алиев И.И. , Халадов А.Ш. , Дзагиев Б.Д. , Миксонов М.Г.
Published: September 2021

Состояние призабойной зоны пласта (ПЗП) имеет для интенсификации притока очень важное значение. По мере эксплуатации скважины постепенно ухудшаются фильтрационно-емкостные свойства пласта. В качестве кольматанта могут быть механические примеси (кварцевый песок, кристаллы солей, смолы, асфальтены, незакрепившийся пропиант, частицы бурового раствора и т.д.). Авторами предложены технологии и технические средства проведения обработок пласта.

The state of the bottomhole formation zone (BHZ) is very important for the stimulation of the inflow. As the well is operated, the reservoir properties gradually deteriorate. Mechanical impurities (quartz sand, salt crystals, resins, asphaltenes, loose propant, particles of drilling mud, etc.)can be used as a bridging agent. The authors proposed technologies and technical means for carrying out treatment of the formation
ПОШИРЕНІСТЬ ТА ІНТЕНСИВНІСТЬ РАННЬОГО ДИТЯЧОГО КАРІЄСУ В ДІТЕЙ БУКОВИНИ
Authors: Годованець О.І. , Котельбан А.В. , Гринкевич Л.Г.
Published: September 2021

Мета. Вивчити поширеність та інтенсивність раннього дитячого карієсу в дітей Буковини. Матеріали і методи. Було оглянуто 349 дітей віком від 1 до 3 років, які народилися та проживали у м. Чернівці. У всіх дітей визначали індекси карієсу кпвз та кпппв, за якими оцінювали показники поширеності та інтенсив- ності захворювання. Рівень інтенсивності визначали за модифікованим та адаптованим до раннього дитя- чого віку індексом РІКрт (Біденко Н.В., 2012). Наукова новизна. Встановлено зростання частоти виявлення раннього дитячого карієсу зі збільшенням віку дітей, зокрема у віці 1-2 роки майже у кожної п’ятої дитини реєструвалися ураження твердих тканин зубів. У дітей старших на рік захворюваність зростала в 1,9 рази, а у віці 3-4 років в 2,4 рази та оцінювалася як висока за критеріями ВООЗ. Інтенсивність карієсу тимча- сових зубів у дітей також зростала з віком та була вірогідно відмінною в дітей різних вікових груп. Під час проведення оглядів у дітей нами фіксувалися усклад- нення карієсу. Відсоток дітей у віці 1-2 роки склав 2,0%, 6,43% – у 2-3 роки та 13,21% – у 3-4 роки. Аналіз роз- ташування каріозних порожнин по щелепах та групах зубів показав, що в дітей віком 1-2 роки домінуючою є локалізація ураження на фронтальних верхніх зубах. Друге місце за частотою ураження посідає перший тимчасовий моляр, який першочергово уражається на нижній щелепі, а потім на верхній. В обстежених віком 2-3 роки зростає відсоток ураження перших тимча- сових молярів до 34,01% зі збереженням тенденції до переважання зубів нижньої щелепи та діагностуються вперше ураження других тимчасових молярів. Щодо дітей 3-4 років, то найбільш ураженим зубом є нижній перший тимчасовий моляр, слідом за ним йдуть верхні фронтальні зуби, потім нижній дру- гий моляр та верхній перший моляр та ікла верхньої щелепи. Висновки. Показники поширеності та інтен- сивності раннього дитячого карієсу в дітей, які про- живають у м. Чернівці, є високими, мають тенден- цію до зростання з віком, особливо різкий стрибок захворюваності виявляється у віці 2 років, що слід врахувати під час розроблення системи профілактики захворювання.
ВПЛИВ АВТОІМУННОГО ТИРЕОЇДИТУ НА ТКАНИНИ ТА ОРГАНИ ЩЕЛЕПНО-ЛИЦЕВОЇ ДІЛЯНКИ (ОГЛЯД)
Authors: Скочило О.В. , Шідловський В.О.
Published: September 2021

Мета дослідження. Впливу автоімунного тиреоїдиту на організм присвячено чимало статей та наукових досліджень. Загальновідомо, що при автоімунному процесі щитоподібної залози проходять зміни в бага- тьох органах та системах. Проте все ще залишається не підтвердженим взаємозв’язок між автоімунним тиреоїдитом та запальними захворюваннями органів ротової порожнини. Саме це питання і стало метою нашого огляду, у якому ми намагалися проаналізувати наявні дослідження на предмет його виявлення. Методи дослідження. Науковими джерелами були статті у зарубіжних періодичних виданнях з ендо- кринології, патофізіології, хірургічної, терапевтичної стоматологій. Наукова новизна. Зниження функціональної актив- ності щитоподібної залози на фоні автоімунного про- цесу призводить до дисбалансу в гомеостазі організму. Оскільки гормони щитоподібної залози відіграють важливу роль у обміні кісткової тканини, то найчас- тіше зустрічаються публікації стосовно виникнення пародонтиту на фоні автоімунної патології щито- подібної залози. Меншою мірою зустрічаються праці, в яких опубліковані результати досліджень впливу автоімунного тиреоїдиту на стан слинних залоз, зміни в яких часто поєднані із системними ревма- тологічними захворюваннями. Проте, попри наявні дослідження та зафіксовані зміни зі сторони органів та тканин шелепно-лицевої ділянки, більшість авто- рів згідні з думкою, що таких досліджень на цей час є недостатньо, щоб чітко встановити причинно- наслідковий взаємозв’язок між автоімунним процесом щитоподібної залози та патологією ЩЛД. Висновки. Представлені дані розширюють наявні зна- ння і створюють цілісну уяву про автоімунний тиреоїдит та пародонтит, проте все ще існує потреба в подальших сучасних детальних дослідженнях, які б чітко дали відпо- відь на механізми виникнення та розвитку взаємозв’язку між автоімунною патологією та станом ЩЛД.
Study of the efficiency of baits based on proinsecticides in relation to susceptible laboratory culture of pharaoh ants
Authors:   Scientific Research Disinfectology Institute of Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing, Davlianidze Tatyana Alekseevna , Eremina Olga Yurevna ,   Scientific Research Disinfectology Institute of Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing, Olifer Veronika Valentinovna ,   Scientific Research Disinfectology Institute of Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing
Published: September 2021

The insecticidal properties of proinsecticides fipronil, indoxacarb, and methomyl were studied against the colonies of Pharaoh ant. It was found that sugar food baits based on fipronil or indoxacarb are effective against colonies of Pharaoh ant in the concentration ranges 0.001–0.1 % and 0.1–1.0 %, respectively. Baits based on 1 % methomyl are also highly effective. In the presence of alternative food, the mortality of workers and queens was reduced. The food attractiveness of ant baits should be increased by introducing honey, peanut butter, and other attractants. Keywords: proinsecticides, fipronil, indoxacarb, methomyl, baits, Pharaoh ant.
Ganglio centinela post quimioterapia neoadyuvante en cáncer de mama. Revisión de la Evidencia y Abordaje Terapéutico en el Instituto Nacional de Cancerología, Bogotá - Colombia
Authors: Puerto-Horta Leidy Juliana , Lopez-Correa Patricia , Cervera-Bonilla Sergio , Guzman-Abisaab Luis , Garcia-Mora Mauricio , Lehmann-Mosquera Carlos , Angel-Aristizabal Javier , Duarte-Torres Carlos , Baez-Guzman Aidee Zoraya , Gonzalez-Rodriguez Edgar Iván , Diaz Casas Sandra Esperanza
Published: September 2021

El estado de los ganglios axilares es uno de los factores pronósticos más importantes en cáncer de mama, siendo la biopsia de ganglio centinela (GC) un estándar en el manejo actual para la estadificación axilar. La quimioterapia neoadyuvante juega un papel cada vez más importante en el tratamiento del cáncer de mama y hoy se conoce que obtener una respuesta patológica completa (pCR), tanto en la mama como en la axila, es un predictor para supervivencia libre de enfermedad y supervivencia global. Actualmente, es controvertido el uso de la biopsia de GC posterior al tratamiento con NAC en pacientes que presentan ganglios linfáticos clínicamente positivos, estableciendo múltiples técnicas para su detección adecuada y disminución de falsos negativos. Se realizó una búsqueda de la literatura en las dos bases de datos bibliográficas más importantes como fuentes de ensayos clínicos. Se realizaron reuniones conjuntas entre las unidades funcionales de mama y tejidos blandos, patología y radiología, y se definieron los requisitos para la realizacion de ganglio centinela posterior al manejo con quimioterapia neoadyuvante en el Instituto Nacional de Cancerología.
Manejo sistémico adyuvante en pacientes con cáncer de mama y enfermedad residual invasiva posterior a quimioterapia neoadyuvante. Actualización de la Evidencia y Abordaje Terapéutico en el Instituto Nacional de Cancerología, Bogotá-Colombia
Authors: Gonzalez Felipe , Zuluaga-Liberato Andrea , Lopez-Correa Patricia , Velasquez Juan Carlos , Bonilla Gonzalez Carlos , Sánchez-Castillo Oswaldo , Cervera-Bonilla Sergio , Bruges Ricardo , Contreras-Mejía Fernando , Guzman-Abisaab Luis , Lehmann-Mosquera Carlos , Garcia-Mora Mauricio , Angel-Aristizabal Javier , Duarte Carlos , Diaz Casas Sandra Esperanza
Published: September 2021

La quimioterapia neoadyuvante, seguida de resección quirúrgica con principios oncológicos, es el manejo estándar en muchos pacientes con cáncer de mama. La respuesta patológica completa (RPC) es un factor pronóstico para supervivencia libre de enfermedad (SLE) y supervivencia global (SG) en algunos subtipos biológicos de cáncer de mama. No obstante, la mayoría de pacientes no alcanzan RCP, definida como la presencia de enfermedad residual en el espécimen quirúrgico (mama, axila o ambas). La presencia de enfermedad residual invasiva indica una resistencia parcial del tumor al tratamiento y se han creado múltiples estrategias para mejorar los desenlaces en este subgrupo de pacientes, una de ella es ofrecer un tratamiento adicional adyuvante. Se realizó una búsqueda de la literatura en las dos bases de datos bibliográficas más importantes como fuentes de ensayos clínicos. Se realizaron reuniones conjuntas entre las unidades funcionales de seno y tejidos blandos, oncología clínica y patología, y se establecieron conductas a seguir en el abordaje terapéutico de la enfermedad residual postneoadyuvancia. En pacientes con cáncer de mama triple negativo con enfermedad residual postneoadyuvancia (RCB II y III), se recomienda quimioterapia adyuvante con capecitabine por 14 días cada 3 semanas por 6-8 ciclos. En pacientes con cáncer de mama HER-2 positivos con enfermedad residual postneoadyuvancia (RCB II y III, que hayan recibido terapia anti HER-2 con trastuzumab), se recomienda adyuvancia con trastuzumab emtansine (T-DM1) por 14 ciclos. Se emitieron recomendaciones para el manejo y reporte de los estudios de patología.
Estimation of the Company Value of Palm Oil Production İn Malaysian Listed Companies: The Panel Data Model Approach
Authors: Khin Aye Aye , Khai Kho Guan
Published: September 2021

The production of crude palm oil in Malaysia fluctuated from 1.2 million tonnes in 2010 to 1.8 million tonnes in 2018. For the domestic consumption of crude palm oil in Malaysia increase gradually between 2.2 million tonnes in 2010 and 3.6 million tonnes in 2018. Besides that, Malaysia was one of the major oil exporters among the 10 countries of the Association of South East Asian Nations (ASEAN) and the exports of palm oil constituted about 90% of Malaysia's palm oil production. The exports of palm oil in Malaysia fluctuated from 1.3 million tonnes in 2010 to 1.4 million tonnes in 2018 whereas the imports of Malaysia's crude palm oil also fluctuated significantly from 121,300 tonnes in 2010 to 108,600 tonnes in 2018. Recently, there were many accusations on palm oil in Malaysia due to the environmental unfriendly product by the European Parliament and decided to ban palm oil biofuel by 2020. This will have negative impact on the company value (company's share price) by reduction in the revenue for the palm oil production companies. Moreover, palm oil was one of the most important agricultural commodities in the world and it was also the fourth-largest contributor to the Malaysian economy. Malaysia's palm oil industry has been a prominent industry that created economic growth and development. Therefore, this research was very important because the world's palm oil production was growing every year, driven largely by the growth of the European Union's biofuel markets and food demand in India and China (Clay, 2013). The palm oil industry facing the another challenging issue was to demonstrate its commitment to sustainable palm oil production. To overcome this issue, many agricultural food industries were promoting certified sustainable palm oil (CSPO) as proof of sustainability in the palm oil supply chain and achieved the buyer's demand (May, 2012). This situation has raised uncertainty to investigate the determinants of the company value in Malaysia's palm oil industry. Furthermore, there are many researchers had done the research over the past few decades, so there are many different perspectives on the determinants of company value in the palm oil industry in Malaysia.

Keywords: Environmental Accounting (EA), Environmental Performance (EP), Information Disclosure (IN), Company Value (CV), Malaysian Selected Palm Oil Listed Companies.
Do Environmental, Social and Governance (ESG) Disclosures Affect Islamic Banks Financial
Authors: Sharipuddin Syaza Laili , Mohd Ayub Nur Aeisya Firrzana , Mahassan Nur Aqilla , Rahim Memiyanty Abdul
Published: September 2021

Currently, businesses are very vulnerable and exposed to the uncertainty that may cause damage to the company. With the ongoing pandemic issue, companies are more concerned about their performance and survival. Companies like banks play a crucial role in the economy since its growth depends on its financial sector's stability regardless of the country. Thus, companies have many approaches and strategies to maintain their business and stay relevant in the corporate world; hence, ESG disclosure comes in handy. According to the Bursa Malaysia Sustainability Reporting Guide (2018), ESG which stands for "Environmental, Social, and Governance" is a term used extensively, specifically by the investment community, portraying the environmental, social, and governance matters considered by investors in the corporate behaviour context. Experts have actively discussed ESG disclosure to address such reporting to enhance the company's performance portfolio. Furthermore, the ESG factor becomes one of the primary considerations for the investors' decision. ESG factor influences and strengthens the investors' confidence towards the company's performance. Bukhari, Hashim and Amran (2020) suggested that companies providing ESG disclosure show improvement in their financial performance. Experts found a significant impact of sustainability practices on the Islamic banks' financial performance (Jan, Marimuthu & Isa, 2019). Companies' ESG disclosure performance has established a reputation for playing a significant role in financial transparency and how it varies by economic and stakeholder's perspective (Oncioiu, Popescu, Aviana, Serban, Rotaru, Petrescu & Pantelescu, 2020). Jan et al. (2019) found that there is still a low adoption level of sustainability practices and reporting in the Islamic banking industry. An empirical study conducted by Nobanee and Ellili (2016) also stated that sustainability disclosure has an insignificant effect on Islamic banks than the high degree of such disclosure on conventional banks. Moreover, from a study conducted in seven Muslim countries, the sustainability practices and reporting were not of serious concern to those countries' Islamic banks (Hassan and Syafri Harahap, 2010).

Keywords: Environment, Social, Governance (ESG) Disclosure, Islamic Banks, and Financial Performance.
Theory of Planned Behaviour Approach to Analyse Intention of Cash Waqf Contribution among Muslims in Malaysia: Application of Extended and Moderator Variable
Authors: Wan Ismail Wan Musyirah Binti , Abdul Rasool Mohamed Saladin
Published: September 2021

Cash waqf plays a big role in economy and society in the country, and also play a vital role in the advancement of socio economic wellbeing of the Muslim community. Scholars believe that contribution of waqf by using cash is much important and more relevant due to its flexibility than waqf properties in the present day. In Malaysia, cash waqf is one of the alternative instruments that can overall improve the social welfare and reduce the poverty rate and at the same time, lessen the burden of the government. Many ways have been proposed to encourage the society to contribute cash waqf for the benefits of the ummah. Therefore, this paper aims to identify the behaviour that influence the contribution of cash waqf in Malaysia using the Theory of Planned Behaviour (TPB). In line with technology advancement, it is expected that technology adoption in the method of collection cash waqf could be a steppingstone to increase the amount of fund. With this reason, technology usage will be proposed to enhance the contribution of cash waqf. In addition, perception on performance of cash waqf proposed as moderator variable in this theory. This study used 284 respondents who were employed Muslims to identify the factor influence contribution of cash waqf. The Partial Least Squares Structural Equation Modeling (PLS-SEM) was used to analyse data through correlation analysis. Referring to the correlation analysis, the finding discovered that there is a positive and strong relationship between Theory of Planned Behaviour and technology usage with contribution of cash waqf, hence it can be summarized that, technology usage could increase intention of Muslims to contibute cash waqf as technology advancement implemented in the method of collection. However, perception on performance of cash waqf is not significant in this research.

Keywords: Cash waqf, technology advancement, technology usage, Theory of Planned behaviour (TPB),perception.
Developing Quality Hospitality Students Through Simulation and Experiential Learning - An Empirical Study at FPT University Danang
Authors: Tung Tran Minh
Published: September 2021

Teaching quality is more and more profoundly decisive for the achievement of higher educational institutions. In this background, Games-Based Learning (GBL) and Experiential-Based Learning (EBL) are the key teaching methodologies and its applications which are often used to enhance the teaching-learning quality by assisting both teachers and students gain their objectives. Teaching Students who take Bachelor of Hospitality and Tourism Management has been a considerable challenge while the facilities for practicing or demonstrating hospitality operations are limited or are not available in the classrooms of most of the Universities. Teaching in the Age of Covid-19 is also another challenge for most of the Educators.

Keywords: Games-Based Learning; Simulation and Experiential Learning, PBLs, Learning in Covid-19 Age, Hospitality Education.
Oligarchia w Polsce ‒ dlaczego jej nie ma?
Authors: Bałtowski Maciej , Sękowski Stefan
Published: September 2021

The aim of this study is to explain the special feature of the contemporary Polish economy which is the lack of oligarchy after 30 years of the post-communist transformation.The article consists of three parts. The first covers the theoretical and methodological framework for further analysis. We present the definitions and classifications of oligarchy and oligarchic systems in the modern world and provide a brief overview of the literature on the subject and the state of knowledge.In the second part, we explain the lack of an oligarchic system in Poland, linking this fact with specific elements of the socialist heritage and with the model of economic transformation and privatisation adopted in this country during the first years of the systemic reforms.In the third part, we present two paradoxes that are related to the oligarchisation of post-communist economies and, indirectly, to the assessment of the Polish path of economic and political transformation. We show that oligarchy and the relatively large sector of state-owned enterprises determine two different models of rent-seeking. The aim of this study is to explain the special feature of the contemporary Polish economy which is the lack of oligarchy after 30 years of the post-communist transformation.
Stan badań nad współczesnymi stosunkami polsko-rosyjskimi
Authors: Szeptycki Andrzej
Published: September 2021

The analysis of the state of research on contemporary Polish-Russian relations leads to the conclusion that this topic has been undertaken by the representatives of various fields of social sciences in Poland and Russia, as well as in the West for over last three decades. At the same time, no publications describe it in a comprehensive and up-to-date manner. This is due to the complex nature of the mutual relations and their high dynamics, as well as the selective approach of researchers. Currently, most of the works are endogenous: Polish authors write for Polish readers, and Russian researchers – for the Russian audience. Paradoxically, the most popular works devoted to Poland and Russia – although it is difficult to judge a priori whether or not they are the best – have been published in Western countries. Moreover, most of the texts devoted to Polish-Russian relations, especially in the political sphere, are devoid of theoretical apparatus. Certain idées fixes present in the literature, such as the imperialist nature of contemporary Russian policy, the resulting threats to Poland and Polish Russophobia deserve an in-depth analysis. Researchers should also pay more attention to some issues that are currently mainly dealt with by experts and journalists – in particular, the Russian hybrid war and whether Poland is or can be its target, as well as possible Russian interference in political life in Poland since 2014.
Przyczynek do historii dyplomacji kulturalnej II Rzeczypospolitej we Francji
Authors: Nisiobęcka Aneta
Published: September 2021

The article describes the circumstances in which the France-Pologne association, led by Henri de Montfort, was established in 1919 and operated to 1940. In the available literature on the subject, the activity of this association has not been given much attention. The Les Amis de la Pologne association established by Rosa Bailly in 1919 played an important role in creating a positive image of Poland in the city on the Seine in the interwar period. The recognition of the Polish National Committee (KNP) by Paris in August 1917 as the official Polish representation paved the way for the creation of the France-Pologne association. Having realised how important it was to use propaganda in international political and military relations, the Polish delegation to the Paris Peace Conference handed over the competences of the KNP Propaganda Office to the France-Pologne association. Its most important task was to conduct the promotional activities in the central press, supported by the government on the Seine. Throughout the interwar period, to advertise the Second Polish Republic’s achievements in France, France-Pologne co-organised readings, lectures, concerts, anniversary celebrations and participated in the scholarship exchange of Polish and French high schoolers and students. It also informed the French public opinion about economic relations with Poland in its magazines: „La Pologne. Politique, économique, littérraire et artistique”, „Bulletin d’information sur la vie économique polonaise” and „La Revue de l’Est Européen”.
Crystallization of catalytic CVD hydrogenated n-a-Si films on textured glass substrates by flash lamp annealing
Authors: Wang Zheng , Thi Cam Tu Huynh , Ohdaira Keisuke
Published: September 2021

Flash lamp annealing (FLA) is a short-duration annealing technique that can crystallize amorphous silicon (a-Si) films for thin-film polycrystalline Si (poly-Si) solar cells. We investigated the crystallization of n-type hydrogenated a-Si (n-a-Si:H) films formed by catalytic chemical vapor deposition on Si nitride- (SiN
x

-) coated textured glass substrates. The n-a-Si:H films with a thickness of ∼2.7 μm were crystallized by FLA with no film peeling even without chromium adhesion layers. We also confirmed that the crystallization takes place through explosive crystallization (EC). The addition of phosphorous to the precursor a-Si:H slightly modifies the crystallization, resulting in different grain sizes and EC velocities compared to the case of EC of intrinsic a-Si:H.
Inter-Component Relations in a Human-Centered Economy (Part 1)
Authors: Nasyrova S. I.
Published: September 2021

Aim. The presented study aims to identify and interpret mutual support relationships between the key areas of a human-oriented economy.Tasks. The authors formulate the problems of the relevance of examining economic relationships within the framework of various economic systems; substantiate the existence of economic support relationships and restrictions in the context of a human-centered economy; identify and structure normal and pathological economic support relationships between the spheres of a  human-oriented economy.Methods. The theoretical and methodological basis of this study is based on the Wuxing Pentagram.Results. The authors present their view of economic support relationships in a human-centered economy as a result of interaction between its spheres: natural-material, social-service, information-digital, creatosphere and cognitive sphere. The resource (human needs) that ensures the interaction between the components of the economic system is identified. Normal support relationships are determined: natural-material sphere — social-service sphere; social-service sphere –information-digital sphere; information-digital sphere — creatosphere; creatosphere — cognitive sphere; cognitive sphere — natural-material sphere. Pathological support relationships are detected: social-service sphere — natural-material sphere; information-digital sphere — socialservice sphere; creatosphere — information-digital sphere; cognitive sphere — creatosphere; natural-material sphere — cognitive sphere.Conclusions. By defining and understanding inter-component support relationships in the context of a human-oriented economy, it becomes possible to determine directions for their regulation to ensure productive development of the economic system as a whole and each person in particular.
Regional Supply Chains: Modern Challenges
Authors: Wende F. D. , Zoidov K. Kh. , Ponomareva M. A. , Shvandar D. V.
Published: September 2021

Aim.The presented study aims to analyze practical scientific approaches involving the use of digital technologies concerning the operation of regional supply chains.Tasks.The authors identify the major tendencies and trends associated with digitalization in regional supply chains; assess the impact of the benchmarking of regional supply chains as well as new forms and technologies used for stabilizing the movement of information and commodity flows during the period of quarantine restrictions.Methods.The methodological basis of this study includes the methods of evolutionary institutional theory, systems analysis, theory of industrial and technological balance, and general scientific research methods (analysis, synthesis, graphical methods, induction, deduction).Results.The study substantiates the need to standardize and unify digital systems and platforms for more efficient interaction between the participants of supply chains, including executive authorities. Large industrial and/or commercial organizations can become the driving force in this area due to their ability to invest in next-generation information and communication systems as well as to participate in the activities of industrial unions and associations that have lobbying resources that allow them to be included in regional digital entrepreneurship development programs, thus providing access to the digital infrastructure of the region. As part of the implementation of a follow-the-leader strategy, medium and small enterprises that serve as links in the supply chain will increase the level of digital business infrastructure to accelerate and improve interaction with partners. In turn, this will increase the speed, performance, and efficiency of regional supply chains, thereby enhancing their competitive advantages in the Russian market.Conclusions.The presented practical scientific approaches to analyzing modern challenges in relation to the operation of regional supply chains will make it possible to determine major trends associated primarily with the use of digital technologies. Big data analysis will make it possible to segment stock for each commodity item and monitor it in real time. Being prepared for changes will allow enterprises and organizations to enhance their competitive advantages even under unfavorable economic conditions.
Digital Transformation of Small Enterprise Activities in the Context of Economic Security
Authors: Pashkovskaya E. G.
Published: September 2021

Aim. The presented study aims to develop recommendations for improving the existing mechanisms of adaptation of small enterprises to the uncertain conditions of the external environment associated with digitalization processes in the economy.Tasks. The author analyzes the existing mechanisms of adaptation of small enterprises to the conditions of uncertainty; substantiates the connection between the digitalization of business processes and the economic security of enterprises; proposes an original approach to the content of the mechanism of adaptation of small enterprises to the processes of digitalization.Methods. The author uses general and special scientific methods and techniques. General scientific methods include analysis and synthesis, comparison and generalization, modeling, literature review, observation, and expert assessment. Special scientific methods include factor analysis and process analysis.Results. The author substantiates the introduction of digital tools provided by Industry 4.0 and step-by-step digitalization of small enterprises in the form of original diagrams demonstrating the content of the mechanism of adaptation of enterprises to the processes of digitalization, individual elements of this mechanism (Internet marketing and its technologies), and prospects for the development of the mechanism in the form of a diagram of its integration into a large digital ecosystem (region, cluster, etc.). The most significant elements of the proposed adaptation mechanism are the mechanism of digitalization and the mechanism of economic security of small enterprises as well as their relationship and balance of interests. The study examines practical approaches to the step-by-step digitalization of small enterprise activities by assessing the efficiency of introducing certain Internet marketing tools in the activities of a small enterprise that does not directly operate in online mode (a chain of driving schools). A relevant investment project is assessed, showing the efficiency of all proposed scenarios. The author also considers the prospects of integrating small enterprises into a single digital ecosystem of a larger structure or entity (region, cluster, etc.) for a large-scale socio-economic synergetic effect that would serve as a mutual benefit for all participants of the system.Conclusions. In spite of the lack of a clear model for the digitalization of the economy in Russia and many obstacles to the successful digital transformation of small enterprises, practical digitalization mechanisms are already being developed, offering a set of step-by-step actions for small enterprises with allowance for their limited resources and prospects for development in each market. One of the success factors of digitalization is the correlation and balance between digitalization mechanisms and the economic security of enterprises. By adopting international approaches to Internet marketing technologies, a modern small enterprise gains a significant strategic advantage in the long term.
IoT-Based Solar Energy
Authors: Sekudan Ericka Ensimau , Azhar Ahmad Mirza , Azahar Kaiyisah Baiduri
Published: September 2021

Problems with a shortage of electricity often occur, especially in a rural area, which makes it difficult to do daily work and makes it difficult to communicate with outsiders. Problems with a shortage of electricity can affect the daily activities of residents, especially in rural areas, and can pose risks in the event of emergencies such as illnesses that require mechanical treatment. If this problem persists it could be detrimental to the population who do not have electricity. Electricity is very important as it can make it easier for people to do the work and for the people in the interior to get information. Problems with a shortage of electricity can affect communication networks such as the internet, radio waves, mobile phone lines and so on. In the current state of technology development, the creation of technologies that can solve this problem must be done and referred to as Solar Energy. It is an IoT research that absorbs energy from the sun to produce electricity in every home. The movement of this research can be controlled manually by using a mobile phone connected to the internet and also controlled automatically by the direction of sunlight. With this, updates from users are a must. This meets the user's need for a device that can be used continuously.
Snakes and Ladders Board Game Table Design to Develop Cognitive, Social and Tactual Perception Skills in Blind Children
Authors: Anam Choirul , Priharto Muria Ilham
Published: September 2021

This study aims to overcome what is experienced by blind children and to invite blind children to take part in playing and not forgetting to put forward special design aesthetics for blind children. The results found result from primary data collection from observations of the daily activities of the subject and interviews with the subject, teacher, and subject's parents and secondary data got from literacy results from related research sources. The research subjects were taken from students of SDLB-A YPAB SURABAYA. The research method used is design thinking by approaching the subject. In the ultimate result, an innovative traditional snake and ladder game was found which was changed in such a way as to be accessible so that it was more friendly for blind children to use.
Anti-Theft Box: Arduino Safety Box with IoT Notifications
Authors: Muzaffar Alfian Mohamad Norul Hafiz , Mas Erwan Athirah Nabihah , Mohamad Adenan Mohamad Syafiq
Published: September 2021

Theft cases often go unnoticed and are everywhere we are. It can happen in public, at school, at work or even in your own home. Things like this often happen to teens and older adults. Some of them do not have a safe place to store their valuables because of their carelessness. This is because they do not take this seriously. On the other hand, they already have their own safety box which is a great example of keeping items from being stolen or robbed. With the Internet of Things (IoT), this safety box can be improved by adding features that make it even safer to receive notifications on a mobile phone when the safety box is opened. With these improvements, property owners will become more aware of their goods because not everyone around us can be trusted. The use of these notifications is an update that will be created to improve the security of your goods. The methodology used to carry out this project is called Prototyping Method. In this way, prototype can be said to be both a design and an example of an existing system, but not yet fully functional. Prototypes will outline how a system works, and most prototype systems are not yet the perfect system to run.
Machine Learning for Disseminating Cooperative Awareness Messages in Cellular V2V Communications
Authors: Lusvarghi Luca , Merani Maria Luisa
Published: September 2021

This paper develops a novel Machine Learning (ML)-based strategy to distribute aperiodic Cooperative Awareness Messages (CAMs) through cellular Vehicle-to-Vehicle (V2V) communications. According to it, an ML algorithm is employed by each vehicle to forecast its future CAM generation times; then, the vehicle autonomously selects the radio resources for message broadcasting on the basis of the forecast provided by the algorithm. This action is combined with a wise analysis of the radio resources available for transmission, that identifies subchannels where collisions might occur, to avoid selecting them.

Extensive simulations show that the accuracy in the prediction of the CAMs’ temporal pattern is excellent. Exploiting this knowledge in the strategy for radio resource assignment, and carefully identifying idle resources, allows to outperform the legacy LTE-V2X Mode 4 in all respects.
Decentralized Voltage Regulation in Islanded DC Microgrids Based on a Modified Droop Control using Superimposed AC Voltage
Authors: Nabatirad Mohammadreza , Razzaghi Reza , Bahrani Behrooz
Published: September 2021

The conventional droop control is a widely-used technique in load sharing among Distributed Generator (DG) units in islanded DC Microgrids (MGs). This method provides Plug-and-Play (PnP) capability for DG units; however, poor load sharing accuracy and unregulated voltage are two shortcomings of that. This article proposes a novel control system in islanded DC MGs to provide simultaneous regulated voltage and accurate load sharing. The method utilizes a modified droop control technique in a decentralized manner. The proposed control system injects a superimposed AC voltage to the network that carries a frequency proportional to the master DG unit output current. The injected voltage adjusts an added a term to the conventional droop control named as the voltage compensation term in order to cancel voltage changes. This term adjusts terminal voltage of DG units proportional to the frequency of the superimposed AC voltage. The performance of the proposed control system is validated via a set of simulation studies using PLECS, and the experimental results confirm the viability and feasibility of the proposed control system.
Evaluation of the ability of cholera vibrios to form a biofilm on the surface of the chitinous shell of a crayfish by real-time PCR
Authors: Menshikova E. A. , Kurbatova E. M. , Vodopyanov S. O. , Pisanov R. V. , Titova S. V.
Published: September 2021

Introduction. Most of the bacteria exist in natural ecosystems not in the form of free floating cells; but in the form of biofilms attached to the substrate. One of the most ecologically important substrates is chitin. Vibrio cholerae; like most members of the Vibrionaceae family; has a chitinolytic complex and can degrade chitin. The ability of V. cholerae to form a biofilm on chitinous substrates can explain the mechanism of the formation of an ecological niche for the preservation and transfer of the pathogen to new regions with the likelihood of the formation of new foci of cholera.Aim — to determine the ability of V. cholerae to form a biofilm on the chitinous shell of crayfish (Astacus astacus) by means of real-time PCR.Materials and methods. A comparative analysis of the timing of biofilm formation by V. cholerae of different serogroups and toxigenicity was carried out.Results. In the course of the study; it was found that cholera vibrios were shown to be capable of forming a biofilm regardless the serogroup and toxigenicity. However; toxigenic tcpA+ strains have a higher intensity of biofilm formation than nontoxigenic ones; in which the tcpA gene is absent.
CARDIAC FUNCTION DURING MINI-INVASIVE REPAIR OF PECTUS EXCAVATUM WITH THE NUSS PROCEDURE
Authors: Fesenko Ulbolhan A. , Myhal Ivan
Published: September 2021

The aim of the study was to analyze cardiac function during Nuss procedure under the combination of general anesthesia with different variants of the regional block.
Materials and methods: The observative prospective study included 60 adolescents (boys/girls=47/13) undergone Nuss procedure for pectus excavatum correction under the combination of general anaesthesia and regional blocks. The patients were randomized into three groups (n=20 in each) according to the perioperative regional analgesia technique: standart epidural anaesthesia (SEA), high epidural anaesthesia (HEA) and bilateral paravertebral anaesthesia (PVA). The following parameters of cardiac function were analyzed: heart rate, estimated cardiac output (esCCO), cardiac index (esCCI), stroke volume (esSV) and stroke volume index (esSVI) using non-invasive monitoring.
Results: Induction of anesthesia and regional blocks led to a significant decrease in esCCO (-9.4%) and esCCI (-9.8%), while esSV and esSVI remained almost unchanged in all groups (H=4.9; p=0.09). At this stage, the decrease in cardiac output was mainly due to decreased heart rate. At the stage of sternal elevation we found an increase in esSV, which was more pronounced in the groups of epidural blocks (+23.1% in HEA and +18.5% in SEA). After awakening from anesthesia and tracheal extubation esSV was by 11% higher than before surgery without ingergroup difference.
Conclusions: The Nuss procedure for pectus excavatum correction lead to improved cardiac function. increase in stroke volume and its index were more informative than cardiac output and cardiac index which are dependent on heart rate that is under the influence of anaesthesia technique.