bluuebunny/crossref_metadata_2025 huggingface dataset:
RELATIONSHIP BETWEEN DEMOGRAPHIC FACTORS AND INDIVIDUAL PERCEPTION ABOUT COVID-19 VACCINES
Authors: Tasnim Tasnim
Published: July 2021

Background: The cases of Covid-19 disease continue to rise in Kendari city, Southeast Sulawesi Province, Indonesia. In 2020, the task force of  Covid-19 cases reported there were about 3,736 people who got Covid-19 diseases in Southeast Sulawesi Province.To reduce the cases, the Indonesian government have prepared some of covid-19 vaccines. However, the majority of community in this Province are still hesitant to accept covid-19 vaccines. Therefore, this study aimed to understand the relationship between demographic factors and individual perception about covid-19 vaccines surrounding people in Southeast Sulawesi Province.
Methods: This study was conducted since January 2020 until October 2020 in Southeast Sulawesi Province of Indonesia. This study recruited 210 respondents with 95% of interval confidence. Dependent variables were demographic factors which comprised age, sex, educational status, mariage status and occupation. Independent variable was individual perception about covid-19 vaccines. Data collection used Google form which was sent through WhattsApp of social media. Statistical analysis used chi-square test and Cramer’s test to understand significant association.
Results: This study showed Sex had significant association with individual perception about covid-19 vaccines (P value=0.041<0.05; Cramer’s value=0.174). However, age, educational status, mariage status, and occupation were not associated significantly with the individual perception about covid-19 vaccines. Female had better perception than male about covid-19 vaccines.
Conclusions: This study shows that female have more information than male about covid-19 vaccines. This is caused by several media to get information including female organizations in the village such as women organization, islamic women organization and social media groups. Women is more communicative than male.
STRUCTURE OF THE INTELLIGENT SYSTEM FOR SUPPORTING EVOLUTIONARY ALGORITHMS
Authors: Белых М.А. , Барабанов В.Ф. , Подвальный С.Л. , Донских А.К.
Published: July 2021

Производится краткий обзор эволюционных алгоритмов как методов поиска и оптимизации при моделировании различных процессов и управлении сложными объектами. Основным критерием рассмотрения алгоритмов является практическая эффективность в решении оптимизационных задач, в частности, задачи поиска оптимального маршрута. В качестве алгоритмов, перспективно подходящих для внедрения в структуру интеллектуальной системы поддержки эволюционных алгоритмов, рассматриваются генетический алгоритм, алгоритм муравьиной колонии и алгоритм пчелиной колонии, отмечены их преимущества и недостатки. Oсуществлен краткий обзор программных средств, работающих на базе эволюционных алгоритмов, с указанием их сильных и слабых сторон, в частности, их ориентированность на определенный алгоритм. Pазработана структурная схема интеллектуальной системы поддержки эволюционных алгоритмов, которая обладает универсальностью и не привязана к конкретному алгоритму. Интеллектуальная система состоит из совокупности модулей: интерфейсный модуль, модуль работы с документами, модуль математического ядра поддержки ЭА, модуль настроек, модуль формирования целевой функции, модуль справочной системы, графический модуль. Приведено описание функционирования каждого из них. Система позволяет осуществить выбор оптимального решения, варьируя параметры и используя инструменты, предоставленные системой или заданные пользователем

We give a brief review of evolutionary algorithms as search and optimization methods for modeling various processes and managing complex objects. The main criterion for considering algorithms is practical efficiency in solving optimization problems, in particular, the problem of finding the optimal route. We considered the genetic algorithm, the ant colony algorithm and the bee colony algorithm as algorithms that are promisingly suitable for introducing into the structure of an intelligent system for supporting evolutionary algorithms, we noted their advantages and disadvantages. We carried out a brief overview of software tools based on evolutionary algorithms, with an indication of their strengths and weaknesses, in particular, their focus on a specific algorithm. We developed a structural diagram of an intelligent system for supporting evolutionary algorithms, which is universal and not tied to a specific algorithm. The intelligent system consists of a set of modules: an interface module, a module for working with documents, a module for the mathematical core of EA support, a settings module, a module for generating an objective function, a help system module, a graphic module. We give a description of the functioning of each of them. The system allows one to select the optimal solution by varying the parameters and using tools provided by the system or specified by the user
SOLUTION OF A NAVIGATION PROBLEM WITH THE USE OF AN AIRCRAFT LANDING CONTROL SYSTEM USING A GLIDE PATH LASER BEACON
Authors: Смирнов Д.А. , Бондарев В.Г. , Тепловодский А.В. , Николенко А.В. , Николенко К.В.
Published: July 2021

Oписана проблема существующих методов определения координат на этапе посадки летательного аппарата, которые имеют либо низкую точность, либо для реализации необходимо сложное оборудование. Поэтому были представлены особенности использования системы обеспечения посадки летательного аппарата с применением глиссадного лазерного маяка. Для осуществления посадки по лазерному глиссадному маяку необходимо дооборудование летательного аппарата системой технического зрения с помощью, c которой возможна автоматизация управления. В этом случае система технического зрения в полёте получает навигационную информацию о движении летательного аппарата в реальном масштабе времени. Осуществление посадки по лазерному маяку представленo путем математического моделирования процесса посадки по предложенному закону управления. Результаты моделирования показывают, что в конечной точке (точка касания взлетно-посадочной полосы) изменение высоты полета происходит плавно, что обеспечивает «мягкую» посадку. Движение осуществляется не по прямой, а по линии, близкой к экспоненте. Ввиду того, что работа с лазерными системами навигации оказывает воздействие на организм человека, был предложен безопасный способ использования данной системы и произведен расчет надежности функционирования. Предложенная система может быть применена на аэродромах любого класса и различных типах летательных аппаратов, на которых может быть установлено фотоприемное устройство и имеется система автоматического управления полетом в режиме посадки

This article describes the problem of existing methods for determining coordinates at the stage of landing an aircraft, which have either low accuracy or require complex equipment. Therefore, we present the features of using the system for ensuring the landing of an aircraft with the use of a glide path laser beacon. To land on a laser glide path, it is necessary to equip the aircraft with a vision system with the help of which control automation is possible. In this case, the technical vision system in flight receives navigation information about the movement of the aircraft in real time. We present the implementation of a laser beacon landing by mathematical modeling of the landing process according to the proposed control law. The simulation results show that at the end point (touchdown point of the runway), the flight altitude changes smoothly, which ensures a “soft” landing. The movement is carried out not in a straight line but along a line close to an exponential. In view of the fact that working with laser navigation systems has an effect on the human body, we propose a safe way of using this system and calculated the reliability of functioning. The proposed system can be applied at airfields of any class and various types of aircraft, on which a photodetector can be installed and there is an automatic flight control system in the landing mode
TIME-FREQUENCY SIGNAL ANALYSIS ALGORITHM USING CONTINUOUS WAVELET TRANSFORM AND WELCH’S PERIODOGRAM METHOD WITH ITS IMPLEMENTATION ON GRAPHICAL PROCESSING UNIT
Authors: Козлов Д.В. , Степанов А.Б.
Published: July 2021

Работа посвящена описанию предложенного авторами алгоритма выполнения частотно-временного анализа сигналов с применением непрерывного вейвлет-преобразования совместно с использованием метода периодограмм Уэлча. При этом приводятся два метода вычисления непрерывного вейвлет-преобразования на основе взаимно-корреляционной функции и на основе быстрого преобразования Фурье. Представлены результаты реализации данного алгоритма на различных графических процессорах (на одноплатных компьютерах с графическим ускорителем и дискретных видеокартах). Выполняются оценка скорости вычисления непрерывного вейвлет-преобразования от частоты дискретизации входного сигнала, оценка скорости вычисления непрерывного вейвлет-преобразования и метода периодограмм Уэлча от числа физических каналов, оценка скорости вычисления метода периодограмм Уэлча от количества частотных ячеек. Было произведено сравнение скорости выполнения двух методов вычисления непрерывного вейвлет-преобразования. Как показали проведённые исследования, среди рассмотренных графических процессоров наилучшие результаты продемонстрировала дискретная видеокарта Nvidia GTX1660 SUPER, которая позволила выполнить предложенный алгоритм за 32,5 мс. Показано, что данный алгоритм может применяться при анализе электроэнцефалограммы с целью определения ее частотного состава и локализации во времени ее основных видов особенностей (соответствующих патологии и артефактам)

In the work we describe the algorithm for performing time-frequency analysis of the signals using continuous wavelet transform together with the use of the Welch’s periodogram method. At the same time, we present two methods for calculating the continuous wavelet transform based on the cross-correlation function and on the basis of the fast Fourier transform. We give the results of the implementation of this algorithm on various graphics processors (on single-board computers with a graphics accelerator and discrete video cards). We performed the estimation of the computation speed of the continuous wavelet transform from the sampling frequency of the input signal, the evaluation of the computation speed of the continuous wavelet transform and the Welch periodogram method from the number of physical channels, the evaluation of the computation speed of the Welch periodogram method from the number of frequency cells. We compared the execution speed of the two methods for calculating the continuous wavelet transform. As the studies have shown, among the considered graphics processors, the best results were demonstrated by the discrete Nvidia GTX1660 SUPER graphics card, which made it possible to execute the proposed algorithm in 32.5 ms. We show that this algorithm can be used in the analysis of an electroencephalogram in order to determine its frequency composition and localization in time of its main types of features (corresponding to pathology and artifacts)
NEW METHOD FOR ESTIMATING THE FATIGUE LIFE OF A PRINTED CIRCUIT BOARD USING THE PRINCIPLE OF LINEAR ACCUMULATED DAMAGE UNDER VARIOUS BOUNDARY CONDITIONS
Authors: Аль-Араджи З.Х.М.
Published: July 2021

Современные электронные блоки во время работы подвергаются различным видам нагрузок, таким как вибрация и удары. Вибрационная нагрузка, как одно из условий нагружения электронных узлов, стала очень важным ключевым фактором в оценке надежности современных электронных систем. Проблема здесь заключается в том, как быстро и точно выполнить анализ усталостной долговечности при вибрации. Вибрация приводит к повреждению печатной платы и нарушению целостности паяных соединений из-за возникновения повышенного напряжения. Рассматривается методика, которая отличается от традиционных использованием взаимосвязи между способами нагрузки и фиксации платы. Методики, предлагаемые ранее, не принимали во внимание тип установки компонентов на плату и ее влияние на распределение напряжения на поверхности. Показана взаимосвязь между механическим напряжением и способами фиксации платы. Оценка усталостной прочности печатной платы, которая поможет аналитику сделать относительно точное прогнозирование вызванной усталостной долговечности. Процесс моделирования средствами PTC Creo Parametric включает четыре граничных условия (закрепление) платы, с целью определения оптимального метода фиксации с наименьшим напряжением. Кроме того, определение усталостной долговечности с помощью математических уравнений до начала фиксации снижает затраты и время

Modern electronic components are subjected to various types of stress during operation, such as vibration and shock. Vibration loading, as one of the conditions for loading electronic components, has become a key factor in assessing the reliability of modern electronic systems. The challenge here is how to quickly and accurately perform a vibration fatigue analysis. Vibration damages the PCB and compromises the integrity of the solder joints due to overvoltage. Here I considered the technique, which differs from traditional ones, using the relationship between the methods of loading and fixing the board. The techniques previously proposed did not take into account the type of component mounting on the board and its effect on surface stress distribution. I show the relationship between mechanical stress and board fixation methods. An assessment of the fatigue strength of a printed circuit board to help the analyst make a relatively accurate prediction of induced fatigue life. The PTC Creo Parametric modeling process includes four boundary conditions (clamping) for the board to determine the best clamping method with the least stress. In addition, the definition of fatigue life using mathematical equations before the start of fixing reduces costs and time
АДАПТАЦИОННЫЙ ПОТЕНЦИАЛ СИСТЕМЫ КРОВООБРАЩЕНИЯ В ЗАВИСИМОСТИ ОТ СТРЕССА
Authors: Дадаева Х.Х. , Тайсумова Р.Р. , Исаева А.Р.
Published: July 2021

Основным показателем степени приспособительного характера организма человека к различным факторам окружающей среды является адаптационный потенциал. Адаптационный показатель выступает в качестве важнейшего физиологического показателя жизнедеятельности организма, в формировании уровня которого участвует весь комплекс изменений всех физиологических систем организма, под воздействием каких - либо факторов. При этом происходит формирование нового адаптивного поведения индивида, которое обеспечивает наиболее благоприятное приспособления организма к различным факторам. Адаптационный потенциал сердечно – сосудистой системы осуществляет динамический контроль за состоянием здоровья людей, занятых выполнением определенных физических нагрузок, а также воздействием психоэмоциональных факторов на организм человека, вызывающих определенные изменения не только в сердечно – сосудистой системе, но и в организме в целом.
COMMENT IDENTIFIER UN LEADER D’OPINION SUR TWITTER ? Une analyse des réseaux sociaux du hashtag IA
Authors: COMLAN FLORINE , HOUNSINOU Jordy , HOUNTONDJI Ramya , KANLANFEYI Kabirou
Published: July 2021

La twittosphère représente l’ensemble des utilisateurs de Twitter. C’est un espace virtuel où prennent forme de nombreuses informations qui sont relayées en masse. Dans cet espace, être un leader d’opinion influent, consiste à avoir une position qui permet d’exercer un pouvoir. La position d’influence renvoie à une place centrale d’un acteur par rapport aux autres acteurs du réseau. En se basant sur la fonction hashtag , nous proposons une analyse du média social Twitter afin d’identifier le personnage le plus influent sur #IA durant une période donnée. Cet article est issu d'un data challenge. Il permet de comprendre la démarche pour identifier un influenceur sur Twitter.
Presentación
Authors: Cueto Marcos , Reyes Esperanza
Published: July 2021

Es una ocasión especial el presentar este número monográfico de la revista Allpanchis dedicado al tema de la salud y sierra en el Perú. La motivación de programar este número es la constatación de que en los últimos años se han incrementado y profundizado los estudios sobre las percepciones, condiciones, servicios y políticas de salud en el Perú. Estos trabajos permiten comprender el pasado y la situación actual de la salud en el país, así como los retos y los cambios que son necesarios en este sector. De esta manera, ofrecen una perspectiva de larga duración sobre las condiciones estructurales que inciden sobre la vida, nacimiento, bienestar y muerte de la población peruana.
Dirâsah Tahlîliyyah Nahwiyyah ‘an Adawât al-Syarti wa Isti’mâluhâ fî al-Lugah al-‘Arabiyyah
Authors: Zulkiflih Zullkiflih , Djuaeni M Napis , Hamzah Hamzah
Published: July 2021

This research is entitled Dirasah Tahliliyah Nahwiyyah 'an Adawat al-Syart wa Isti'maluha fi al-Lughah al-Arabiyyah (a grammatical analytic study of adhawat al-syart and its use in Arabic). This study aims to explain the essence of the syartiyah sentence and find out the use of adawat syart in Arabic. This study uses a qualitative approach with the type of library research. The method of collecting data is through documentation by using quotes and transferring trusted sources either directly or indirectly. The data analysis process goes through three interactive stages, namely data reduction, data exposure, then verification and drawing conclusions. The result of this study is that the syartiyah sentence is a sentence consisting of fi'il syart and jawabu syart by using adawat syart (devices of syart). Adawat syart is a set of tools used to form syartiyah sentences (fi'il syart and answer syart), which are divided into two types, namely adawat syart al-jazimah and adawat syart ghair al-jazimah. The mention of adawat (adawat syart) is because not all of them are in the harf category, but some are in the isim category, namely: in, idzma, man, ma, mahma, mataa, aina, ayyaana, annaa, haitsuma, ayyu, idza, kaifama, law, lawma, lawla and amma.
Efekivitas Penerapan Metode Hiwar Untuk Meningkatkan Keterampilan Berbicara Siswa Kelas VIII MTs Hikmat Tuttula Kecamatan Tapango Kabupaten Polewali Mandar
Authors: Hasria Hasria , Mujahid Mujahid , R Rahmat
Published: July 2021

Penelitian ini mengkaji tentang efektivitas penerapan metode hiwar untuk meningkatka keterampilan berbicara (maharah kalam) siswa kelas VIII MTs Hikmat Tuttula Kecamatan Tapango Kabupaten Polewali Mandar. Jenis penelitian yang digunakan adalah penilitian kuantitatif yang bertujuan untuk memberikan informasi secara tepat dan jelas tentang penerapan metode hiwar dalam pembelajaran bahasa Arab di kelas VIII MTs Hikmat Tuttula. Pengumpulan datanya bersumber dari guru, siswa, maupun sarana pembelajaran lainnya berupa media dan dokumen. Adapun metode penumpulan datanya adalah lewat observasi, butir test dan dokumentasi. Penelitian ini menggunakan analisis deskriptif. Hasil penelitian ini menunjukkan bahwa kemampuan berbicara bahasa Arab (maharah kalam) siswa kelas VIII Hikmat Tuttula sebelum penerapan metode hiwar masih sangat kurang. Adapun setelah penerapan metode hiwar, kemampuan maharah kalam siwa kelas VIII MTs Hikmat Tuttula mencapai kriteria ketuntasan minimum (KKM). Sehingga dapat dikatakan bahwa penerapan metode hiwar efektif untuk meningkatan maharah kalam siswa kelas VIII MTs Hikmat Tuttula Kecamatan Tapango Kabupaten Polewali Mandar.
Terorisme dan Anak Muda: Studi tentang Rekrutmen Jejaring Terorisme dalam Perspektif Eksistensialisme Jean Paul Sartre
Authors: Aulia Faizal Yan , Murtiningsih Rr. Siti
Published: July 2021

This article explores the changes that occur in terrorism networks, especially related to changes in recruitment targets. These changes are observed in the perspective of Jean Paul Sartre's existentialism. This article aims to find out the changes that occur in the terrorism network in relation to the methods and targets of recruitment and how the changes are interpreted in the context of Jean Paul Sartre's existentialism. There are four aspects of changes that occur in terrorism, namely organization, means of propaganda, targets of recruitment and targets of action. The younger generation involved in terrorist networks can be seen as an attempt to realize a full self-existence as a result of the denial or denial of the existence of others.AbstrakArtikel ini mengeksplorasi perubahan-perubahan yang terjadi di dalam jaringan terorisme, terutama terkait dengan perubahan sasaran rekrutmen. Perubahan-perubahan ini dilihat dalam perspektif eksistensialisme Jean Paul Sartre. Tujuan dari artikel ini adalah untuk mengetahui perubahan-perubahan yang terjadi di dalam jaringan terorisme dalam kaitannya dengan metode dan sasaran rekrutmen serta bagaimana perubahan-perubahan ini ditafsirkan dalam konteks eksistensialisme Jean Paul Sartre. Ada empat aspek perubahan yang terjadi di dalam terorisme, yaitu organisasi, sarana propaganda, sasaran perekrutan dan sasaran aksi. Generasi muda yang terlibat dalam jaringan terorisme dapat dipandang sebagai suatu upaya untuk mewujudkan eksistensi diri yang sepenuhnya sebagai hasil dari penegasian atau penyangkalan atas eksistensi yang lain.
Minimal Automaton for Multiplying and Translating the Thue-Morse Set
Authors: Charlier Émilie , Cisternino Célia , Massuir Adeline
Published: July 2021

The Thue-Morse set $\mathcal{T}$ is the set of those non-negative integers whose binary expansions have an even number of $1$'s. The name of this set comes from the fact that its characteristic sequence is given by the famous Thue-Morse word

$${\tt 0110100110010110\cdots},$$

which is the fixed point starting with ${\tt 0}$ of the word morphism ${\tt 0\mapsto 01}$, ${\tt 1\mapsto 10}$. The numbers in $\mathcal{T}$ are commonly called the evil numbers. We obtain an exact formula for the state complexity of the set $m\mathcal{T}+r$ (i.e. the number of states of its minimal automaton) with respect to any base $b$ which is a power of $2$. Our proof is constructive and we are able to explicitly provide the minimal automaton of the language of all $2^p$-expansions of the set of integers $m\mathcal{T}+r$ for any positive integers $p$ and $m$ and any remainder $r\in\{0,\ldots,m{-}1\}$. The proposed method is general for any $b$-recognizable set of integers.
Landmarks in Self-Access: A Summary of the 6th RILAE LAb Session
Authors: Mynard Jo , Ambinintsoa Dominique Vola , Hollinshead Ena , Peeters Ward
Published: July 2021

The field of self-access has spanned 50 years, and in this report, the authors give a brief overview of a recent event organized by the Research Institute for Learner Autonomy Education (RILAE) with the theme of ‘Landmarks in self-access’. The authors also make reference to some landmark and recent publications in learner autonomy and self-access that have influenced the field.
DEVELOPING THE ABILITY TO MAINTAIN BALANCE IN MARTIAL ARTISTS AT THE STAGE OF INITIAL SPORTS TRAINING
Authors: Nagaeva E. I. , Biryukova E. A. , Yarmolyuk N. S. , Mishin N. P. , Seidosmanova E. E. , Derkach V. V. , Peredkov S. S.
Published: July 2021

Modern research has proven the relationship between postural control and performance in healthy individuals who regularly engage in physical or athletic activity. Randomized studies on athletes have shown a positive relationship between performance and posture control. Some authors note that regular balance exercises significantly improve postural balance according to the dose-response ratio.
At the same time, the description of the relationship between physical activity and postural balance mainly concerns adult athletes, while experimental work on the system of given posture control in primary school-age children, including athletes, is currently insufficient.
In our opinion, a detailed study of the system of control of a given posture in children of primary school age, including sportsmen-wrestlers, allows us to evaluate the development of their coordination abilities and can be used later as a predictive criterion of competitive success of these sportsmen.
In this connection, the purpose of this study was to study the system of control of a given position in young martial arts at the stage of initial sports training by means of computer stabilometry.
In a study of the main stabilizing characteristics in the Romberg sample with open eyes, the examined children engaged in karate registered the smallest values of statokinesiograms length by 26.07 % (p<0.05), area by 64.82 % (p<0.05), and the index of work on ODC movement – by 29.29 % (p<0.05) compared to the control. The data received by us testifies to the fact that the sportsmen who are engaged in karate have the most economical mechanisms to maintain the given posture in comparison with the sportsmen of other groups, as well as those who are not engaged in sports. Such changes in the system of maintaining a given position are due to the fact that at an early stage of the training process in karate, special attention is paid to the development of coordination abilities, improvement of proprioceptive sensitivity and accuracy of position registration.
Children engaged in Thai boxing also had lower stability scores than children in the control group: statokinesiogram length by 21.49 % (p<0.05), area by 30.76 % (p>0.05), and ODC movement score by 33.99 % (p<0.05). Probably, such changes are connected with the development of coordination of tayboxers by imitation exercises: elementary and arbitrary (shadow fighting), which are based on the elements of movement, impact and defense techniques.
Young athletes engaged in taekwondo did not have reliable differences in computer stabilometry indices in comparison with the test subjects of the control group, which, probably, may be due to the peculiarities of their sports training, in particular, the priority in the development of their speed-force qualities over the control of static stability at the early stage of the training process.
NEUROPHYSIOLOGICAL MECHANISMS OF SPEECH PERCEPTION AND THEIR PERCULARITIES IN HEALTHY CHILDREN AND CHILDREN WITH DEVELOPMENTAL DISORDERS
Authors: Nacharova M. A. , Mikhailova A. A. , Govorun Ya. Yu. , Portugalskaia A. A. , Pavlenko V. B.
Published: July 2021

Neuronal synchronization, reflected in the EEG pattern, is the mechanism by which the brain integrates different types of information contained in a speech message and presented in different areas of the brain (for example, phonological, spelling, semantic and syntactic information). The process of understanding a sentence consists of two groups of interrelated cognitive operations: it begins with searching in memory for phonological, syntactic and semantic properties of words, which is followed by integrating information into a general idea of the sentence meaning. The stage of searching for words in adults results in an increase in the theta rhythm power. The stage of integrating words into a sentence results in the growth of theta, beta, and gamma rhythms. At the same time, the growth of theta rhythm is more typical for children than for adults. Higher rhythms reactivity during speech perception indicates better developed speech skills in children. Under conditions of relative relaxation, the EEG of children with a high level of speech development is characterized by a moderate power level of theta and beta rhythms and a high level of alpha and mu rhythms.
It is assumed that a key role in the process of understanding speech is played by the so-called «action perception circuits», surrounding the Sylvian sulcus of the left hemisphere. The «action perception circuits» are composed of nerve cells capable of providing the speech signals perception and generation. The most important subgroup of neurons included in the «action perception circuits» are mirror neurons that are activated when performing and observing actions. The desynchronization of the EEG mu rhythm is considered as mirror neurons activation marker.
In several studies, it revealed that the level of mirror neurons activation and the level of speech understanding in children are connected. It is a topic of great interest to research the mu rhythm alpha and beta components reactivity both during the production of speech and during the perception of another person speech. At present, it is becoming obvious that analyzing the EEG rhythms power changes during the speech understanding in different scenarios could be used to identify the mechanisms of the brain language network and speech disorders. The revealed patterns make it possible to propose ways of correcting the children speech development using EEG biological feedback methods.
FEATURES OF THE STRUCTURE OF VARIABILITY OF THE CARDIORHYTHM OF RESIDENTS OF TAJIKISTAN DEPENDING ON THE TYPE OF VEGETATIVE REGULATION
Authors: Raufov S. S.
Published: July 2021

The results of a study of the level of functionality of the regulatory systems of the inhabitants of Tajikistan are presented. A comparative analysis of the indicators of variational cardiointervalometry in men and women of Tajiks is given. The aim of the study was to study the functional state of autonomic regulation in Tajiks, depending on the state of activity such as the autonomic nervous system.
We examined 233 people aged 18 to 40 years. Based on the values of the stress index, variational magnitude, and the total power of the spectrum from the entire population under study, three groups of individuals were formed: vagotonics, normotonics, and sympathotonics. Indicators of variational cardiointervalometry were recorded using a psychophysiological testing device UPFT-1/30 “Psychophysiologist” in the sitting position with a cycle of 128 cardiointervals for 5 minutes.
The indicators of variational cardiointervalometry in men are higher compared to women. Differences in the activity of regulatory systems and assessment of the functional state in men are significantly different from indicators of women. Significant differences are noticeable only in the group of vagotonics. Both among men and among women, a greater number of subjects with a hyperactivity reaction were revealed. In 37 % of the examined, regardless of gender, the state of the optimal working voltage of the body was revealed. It has been established that sympathotonics dominate among women, this may indicate lower adaptive abilities of women, which is a sign of greater energy expenditures during adaptation, and normotonics dominate among men. When compared with indicators of the functioning of the body of men and women, features of the deterioration of blood circulation regulation and a decrease in the level of physiological health in vagotonic men were revealed.
Clima escolar y apoyo administrativo como predictores de la satisfacción laboral del docente
Authors: Williams Ancil , Rodríguez Gómez Jaime
Published: July 2021

Numerosos estudios sobre la satisfacción laboral docente, tanto en el sector público como en el privado, muestran su importancia. El propósito de este estudio fue analizar si el clima escolar y el apoyo administrativo son predictores significativos de la satisfacción laboral en los docentes desde el nivel inicial hasta el 12º grado en un grupo de escuelas adventista del estado de Florida, EE. UU. Se seleccionó una muestra aleatoria estratificada y por conglomerados de 141 maestros; de ellos, 100 maestros respondieron el cuestionario. Se observó que el clima escolar y el apoyo administrativo percibido fueron predictores significativos de la satisfacción laboral de los docentes encuestados. De ellos, el mejor predictor resultó el clima escolar. El factor más importante del clima escolar que contribuye a la satisfacción laboral fue la innovación colaborativa. Por otro lado, aunque todos los factores del apoyo administrativo fueron importantes, el apoyo relacional mostró el mayor aporte.
El ambiente de aprendizaje en la educación cristiana
Authors: Bouvet Raquel Inés
Published: July 2021

Reseña de un libro: Kilgour, P. W. y Christian, B. J. (Eds.). (2019). Revealing Jesus in the learning environment: Experiences of Christian educators. Avondale Academic Press.
The Necessary And Sufficient Condition For Consistency Of The MLE
Authors: Yu Qiqing
Published: July 2021

Suppose that the observations are i.i.d. from a density f(.; θ), where θ is an identifiable parameter. One expects that the maximum likelihood estimator of θ is consistent. But its consistency proof is non-trivial and various sufficient conditions have been proposed (see, e.g., the classical statistics textbooks). All these sufficient conditions require f(x; θ) being somewhat upper semi-continuous (in θ), with various smoothness conditions or conditions needed for the dominated convergence theorem. We study the sufficient and necessary condition.
Werkzeugbürsten für exakte Bearbeitung
Authors: Moselweiß Julius
Published: July 2021

Zu den typischen Einsatzgebieten von Bürsten zählen das zielsichere Entgraten, Verrunden und Entzundern sowie das Entlacken, Entschlacken und Entrosten. Verschiedene konstruktive Ausführungen gewährleisten Vielseitigkeit für fast alle Anwendungsgebiete der mechanischen Oberflächentechnik.
Verzug bei pulverbettbasiertem Schmelzen von TiAl6V4/Distortion in laser beam melting – Influences of part geometry and heat treatment
Authors: Hofmann Andreas , Mahr Alexander , Döpper Frank , Bay Christian
Published: July 2021

Der hohe lokale Energieeintrag beim pulverbettbasierten Schmelzen mittels Laserstrahl (laser powder bed fusion, LPBF) bewirkt hohe Temperaturgradienten. Dies führt zu thermisch induzierten Eigenspannungen und Verzug in den gefertigten Bauteilen, wodurch deren Form- und Maßhaltigkeit negativ beeinträchtigt wird. In diesem Beitrag wird der Einfluss der Bauteilgeometrie und einer der Fertigung nachgelagerten Wärmebehandlung auf den Verzug von mittels LPBF gefertigten Bauteilen aus dem Werkstoff TiAl6V4 untersucht.

 

A high local energy input during laser powder bed fusion (LPBF) creates high temperature gradients. This leads to thermally induced residual stresses and distortion, which negatively affect the dimensional accuracy of components. This paperinvestigates the influence of component geometry and heat treatment after the manufacturing process on the distortion of components made by LPBF of TiAl6V4.
Stirnradbearbeitung im Tauchgleitschleifen/Stream finishing of spur gears
Authors: Neuenfeldt Patrick , Brennenstuhl Felix , Schulze Volker
Published: July 2021

Das Tauchgleitschleifen als eines der produktivsten Gleitschleifverfahren hat sich bei der Endbearbeitung komplexer Bauteile am Markt etabliert und eröffnet zunehmend neue Möglichkeiten in der Auslegung von Fertigungsketten und der Substitution bisheriger Endbearbeitungsprozesse in der Verzahnungsherstellung. Dieser Beitrag behandelt die Optimierung der Oberflächenrauheit und -textur von geradverzahnten Stirnrädern durch Untersuchungen mittels im Zahnrad integrierter Metallstreifen.

 

Stream finishing, as one of the most productive mass finishing processes, has been established on the market for finishing complex components, providing new options in the design of production chains and in the substitution of existing finishing processes in gear manufacturing. This paper focuses on the optimization of surface roughness and texture of spur gears by means of investigating metal strips integrated in the gear.
Kornbruchverhalten beim Abrichten von CBN/Fracture behavior of CBN during dressing – Analysis of the single grain dressing process of CBN
Authors: Ohlert Marius , Prinz Sebastian , Barth Sebastian , Bergs Thomas
Published: July 2021

Die Schleifscheibentopographie, welche durch den Abrichtprozess erzeugt wird, ist ein wesentlicher Einflussfaktor für das Prozessergebnis beim Schleifen. Das Bruchverhalten der Kornwerkstoffe beim Abrichten hängt nicht nur von den Abrichtparametern, sondern auch von dem Korntyp der Schleifscheibe ab. Daher wurden Abrichtversuche an einzelnen CBN-Körnern durchgeführt, um den Einfluss der Abrichtparameter und des Korntyps auf das Prozessergebnis zu ermitteln.

 

The grinding wheel topography generated by the dressing process is a factor of major impact on the result of the grinding process. The fracture behavior of the grains of the grinding wheel during dressing not only depends on the dressing parameters but also on the grain type of the grinding wheel. Therefore, dressing tests of single CBN grains were conducted to determine how the dressing parameters and the grain type influence the process result.
Hybride Fertigung mittels Laser-Strahlschmelzen/Hybrid manufacturing by laser-based powder bed fusion
Authors: Langer Lukas , Schmitt Matthias , Schlick Georg , Schilp Johannes
Published: July 2021

Die additive Fertigung ermöglicht komplexe Geometrien und individualisierte Bauteile. Die hohen Material- und Fertigungskosten können ein Hindernis für einen wirtschaftlichen Einsatz sein. In der hybriden additiven Fertigung werden die Vorteile konventioneller sowie additiver Fertigungsverfahren kombiniert. Für eine weitere Steigerung der Wirtschaftlichkeit und Effizienz werden nichtwertschöpfende Schritte der Prozesskette identifiziert und Automatisierungsansätze entwickelt.

 

Additive manufacturing enables complex geometries and individualized components. However, high material and manufacturing costs can be a hindrance for economical use. Hybrid additive manufacturing combines the advantages of conventional with additive manufacturing processes. For a further increase in profitability and efficiency, non-value-adding steps in the process chain are identified and automation approaches developed.
Pengaruh Limbah Batu Bara Sebagai Filler Terhadap Karakteristik Marshall Dan Indek Kekuatan Sisa Pada Campuran Aspal Beton Ac-Wc
Authors: Rachman Firmansyah , Syammaun Tamalkhani , Heikal Fadjra
Published: July 2021

Penambangan batubara di Indonesia banyak menghasilkan limbah berupa abu batubara. Salah satunya ialah Batubara yang terdapat di Nagan Raya, memiliki kandungan silika (Si O2) lebih banyak daripada jenis lainnya. Berdasarkan literatur, penggunaan sulfur dalam campuran beraspal dapat meningkatkan stabilitas Marshall. Penelitian ini dilakukan untuk mendukung penelitian sebelumnya tentang filler dan untuk memperbaik mutu dalam campuran beraspal. Tujuan Penelitian ini adalah untuk mengetahui bagaimana pengaruh abu batubara sebagai filler terhadap  karakteristik dan indeks kekuatan sisa pada campuran aspal beton AC-WC. Penelitian ini menggunakan metode marshall dan indeks kekuatan sisa (IKS). Aspal yang digunakan penelitian ini merupakan aspal pertamina Pen 60/70 dengan penambahan limbah abu batubara pada variasi 0%, 1%, 2%, 3%, 4% dan 5%  sebagai filler. Pelaksanaan penelitian dimulai dengan pengambilan material lalu dilanjutkan dengan sifat-sifat fisis agregat sehingga dapat diketahui apakah memenuhi spesifikasi yang ditetapkan. Pada penelitian ini banyak benda uji/sampel KAO sebanyak 25 buah benda uji. Dengan memperoleh kadar aspal 6,1 yang bakal dipakai pada 6 variasi dimana pervariasi 5 sampel benda uji. Untuk variasi yang menggunakan abu batubara yaitu sebanyak 30 buah benda uji satu diantara benda uji akan dilakukan indek kekuatan sisa (IKS). Jadi jumlah total benda uji yang dibuat yaitu sebanyak 55 benda uji. Hasi penelitian menunjukkan peggunaan abu batubara sebagai filler pada parameter marshall semuanya memenuhi spesifikasi begitu juga dengan indeks kekuatan sisa (IKS) dimana > 80 sehingga hasil nilai tertinggi pada IKS yaitu pada variasi 3% dengan nilai 102.50.
Upaya Peningkatan Efektivitas Dan Efisiensi Rantai Pasok Proyek Konstruksi Dengan Pengukuran Kinerja
Authors: Oktaviani Cut Zukhrina
Published: July 2021

Industri konstruksi memiliki karakteristik yang unik dan berbeda dengan industri lainnya. Kompleksitas pekerjaan menyebabkan banyak pihak dengan berbagai keahlian yang terlibat pada pelaksanaan proses produksinya dan akan membentuk rantai pasok yang kompleks. Kompleksitas rantai pasok ini memerlukan suatu manajemen pengelolaan hubungan antar mata rantai yang terlibat. Hal ini dirasa perlu karena pengelolaan rantai pasok dipercaya sebagai salah satu usaha yang strategis untuk meningkatkan daya saing suatu perusahaan konstruksi di tengah semakin ketatnya persaingan lokal, regional maupun global, sebagaimana layaknya industri lainnya. Suatu rantai pasok yang efisien dianggap dapat memberikan daya saing yang tinggi kepada perusahaan yang menjadi bagiannya. Rantai pasok konstruksi akan memberikan konstribusi terhadap efisiensi suatu pelaksanaan proyek, sehingga suatu rantai pasok konstruksi memiliki potensi untuk menjadi salah satu ruang yang memungkinkan untuk dilakukannya peningkatan dalam industri konstruksi.
Pengaruh Pemodelan Tipe Balok Beton Bertulang Terhadap Rasio Tulangan Perlu
Authors: Wahyuni Wahyuni , Munawir Munawir , Putra Pujianto Eko
Published: July 2021

Pada perencanaan struktur bangunan gedung, balok dapat dimodelkan sebagai balok segi empat dan balok T. Balok segi empat dimodelkan dengan hanya memperhitungkan dimensi balok, tanpa memperhitungkan pengaruh plat lantai yang melekat pada bagian atas balok. Sedangkan pada perhitungan balok T, plat lantai diperhitungkan sebagai sayap pada balok yang ditinjau. Berdasarkan pemodelan balok yang diaplikasihkan pada objek kajian, yaitu gedung asrama putra berlantai 3 (tiga). Penelitian ini bertujuan untuk meninjau pengaruh tipe balok terhadap rasio tulangan perlu, karena adanya perbedaan area tekan pada balok dan peningkatan nilai inersia penampangnya. Pemodelan struktur yang ditinjau adalah sebagai portal rangka ruang (space frame), dengan pembebanan dibatasi untuk beban mati dan beban hidup. Standar yang digunakan adalah  Standar Nasional Indonesia (SNI) 1727-2013 dan PPIUG 1983. Tata cara perhitungan struktur beton untuk bangunan gedung Standar Nasional Indonesia (SNI) 2847-2002. Sedangkan untuk analisis gaya-gaya dalam di lakukan dengan menggunakan bantuan software SAP2000. Input data material untuk beton, K-250 (f’c = 20,75 Mpa) dan baja (fy) = 390 Mpa. Berdasarkan hasil analisisis untuk balok induk 30/60 dengan bentang 6 m diperoleh besarnya momen (M) dan gaya geser (V) maksimum sebesar M = 188,09 kN.m dan V = 177,20 kN Untuk balok segi empat variasi 1. M = 154,19 kN.m dan V = 176,51 kN untuk balok T variasi 2. Kebutuhan tulangan perlu untuk balok variasi 1 sebesar 940,80 mm2 (ρ = 0,0056) menggunakan besi 5D16. Untuk  balok variasi 2 sebesar 890,71 mm2 (ρ = 0,0047) menggunakan besi 4D16. Dengan demikian diperoleh kesimpulan bahwa pemodelan balok T menjadikan kebutuhan tulangan menjadi lebih kecil dibandingkan dengan balok segi empat.
Sistem Perencanaan Penanggulangan Banjir Dengan Geotextile Bag (Studi Kasus : Desa Kedai Runding Kecamatan Kluet Selatan Kabupaten Aceh Selatan
Authors: Yulia Yulia , Novia Heldi Cutti
Published: July 2021

Banjir adalah peristiwa yang terjadi ketika aliran air merendam daratan yang di akibatkan oleh volume air suatu badan air seperti sungai yang meluap sehingga air keluar dari batasan alaminya. Berdasarkan latar belakang diatas, maka permasalahan pada penelitian ini yaitu bagaimana alternatif sistem penanganan penanggulangan banjir menggunakan geobag pada Desa Kedai Runding. Tujuan penelitian yaitu untuk mengetahui alternatif sistem penanganan penanggulangan banjir menggunakan geobag pada Desa Kedai Runding. Data yang digunakan untuk penelitian ini adalah data primer berupa obervasi atau wawancara ke masyarakat untuk mengetahui tinggi banjir yang pernah terjadi pada Desa Kedai Runding dan data sekunder yaitu berupa data panjang tebing sungai dan elevasi permukaan tanah dengan menggunakan Google Earth. Berdasarkan hasil pengolahan data, bahwa panjang tebing pada lokasi Kedai Runding yaitu 814 meter  untuk lokasi yang akan dibangun geobag berjarak dari tepi tebing yaitu 10 meter  bertujuan untuk menjaga terjadinya erosi. Namun panjang tebing yang dipasang geobag hanya 514 meter dengan rata-rata elevasi +6 dan pada penempatan geobag diperlukan tanah yang rata sehingga adanya perkerjaan galian dan timbunan untuk perhitungan volume galian dan timbunan pada titik 1 hingga ke titik2 (51,8 m³), volume galian dan timbunan  pada titik 2 hingga ke titik 3 (59,1 m³), volume timbunan bagian satu pada titik 3 hingga ke titik 4 pada bagian satu (439,9 m³) dan volume timbunan titik 3 hingga ke titik 4 pada bagian dua (415 m³).  Untuk jumlah lapis geobag dengan tebal rata-rata geobag adalah 10 cm dengan tinggi 1 meter.  Lebar potongan konstruksi terbagi menjadi dua bagian ada lebar potongan I-I 4,15 meter. Jumlah total yang dipakai pada masing-masing penampang yaitu 32850 buah kantong yang dipakai sepanjang 514 meter tepi tebing yang akan dibangun konstruksi bangunan pengendalian banjir. Dengan hasil yang telah didapat  maka geobag  tersebut dapat dijadikan sebagai salah satu alternatif sistem penanggulangan banjir pada saat darurat
Tecnología y movilidad en el Atuel Medio: el registro arqueologico del sitio Los Gallegos-1 (San Rafael, Mendoza)
Authors: Sugrañes Nuria , Pompei María de la Paz , Neme Gustavo , Gil Adolfo
Published: July 2021

En el presente trabajo se evalúan las tendencias tecnológicas de los conjuntos líticos y cerámicos del sitio arqueológico Los Gallegos 1, localizado en el valle medio del río Atuel. El objetivo principal es explorar las estrategias de movilidad y modos de ocupación durante el Holoceno tardío final en la región de Monte, al sur de la provincia de Mendoza. Los resultados muestran que el sitio fue un campamento residencial donde se realizaron actividades múltiples. Las evidencias tecnológicas señalan una baja movilidad residencial de los grupos humanos que ocuparon este espacio hacia fines del Holoceno tardío (ca. 1082 años cal. AP), y que su emplazamiento priorizó la cercanía al curso de agua del río Atuel.
EXPERIENCE IN CREATING THE EDUCATIONAL PROJECT «ABOUT RUSSIAN IN RUSSIAN» FOR TEACHING RUSSIAN AS A FOREIGN LANGUAGE
Authors: Багинская И.П.
Published: July 2021

В статье рассматривается опыт разработки образовательного проекта «О русском по-русски», в рамках которого создаются видеоподкасты и дополнительные материалы, ориентированные на аудиторию, изучающую РКИ. Проект состоит из трех частей, каждая из которых может быть использована изучающими русский язык и преподавателями отдельно или в рамках трехступенчатой системы: YouTube-канал, образовательный сайт, страница на сайте Patreon. В статье подробно описан процесс создания видеоподкастов.

The article discusses the experience of developing an educational project «About Russian in Russian» aimed at an audience studying Russian as a foreign language. Videopodcasts and additional materials are created within the project. The consists of three parts. Each part can be used by Russian language learners and teachers separately or as a part of a three-stage system: YouTube channel, educational site, page on «Patreon». The article also details the process of creating videopodcasts.
THE EXPERIENCE OF USING INFOGRAPHICS IN THE LESSONS OF RUSSIAN AS A FOREIGN LANGUAGE
Authors: Мезит А.Э.
Published: July 2021

В статье описываются особенности функционирования инфографики на занятиях РКИ в университетских курсах. Сейчас инфографика все чаще вовлекается в учебный процесс. Прежде всего это касается изучения иностранных языков, поскольку за счет визуализации деталей, ограниченного объема и привлекательности подачи информация, представленная в виде инфографики, усваивается студентами эффективнее. В статье представлены примеры заданий с использованием инфографики для всех уровней владения русским языком, направленные на развитие продуктивной и рецептивной речевой деятельности, а также инфографика, созданная студентами в качестве самостоятельной работы при изучении русского языка.

The article describes specificities of the infographics use in the classroom of Russian as a foreign language in University courses. The relevance of the work is due to the intensification of the infographics use in the educational process. First of all, this applies to foreign language courses: students understand the information presented in the form of infographics better due to the visualization of details, the limited volume and attractiveness of the presentation itself. The article presents examples of tasks using infographics for all levels of Russian language proficiency. These examples are aimed at the development of productive and receptive speech activity. The examples of creative tasks for the organization of independent students’ work are presented as well.