bluuebunny/crossref_metadata_2025 huggingface dataset:
Learning science 4th Grade Solution with Media Kahoot at Elementary School
Authors: Wijayanto Emanuel , Suyoto
Published: June 2021

Today’s learning media is a great way to develop learning abilities for elementary school children. Science learning in elementary schools is expected to be an effort for elementary school students to master science concepts and are embedded in students’ minds. Play is a socially centered process. Here it can increase desire and motivation and stimulate learning at all levels and ages. With the encouragement that emerges for creativity in the classroom, the application of technology can coexist, which is expected to be useful in the learning process. As time goes by, revolution 4.0 in science and technology has developed very rapidly. Application assistance is a good thing to support learning in grade 4 science learning in elementary schools with Kahoot media. Kahoot is an interactive learning game application that uses information and communication technology. Kahoot can create simple quizzes and games so that the atmosphere of learning science in elementary schools will be more interactive because the learning media uses the play chili learning method to support elementary school students’ perspective on learning.
Road Handling Using International Roughness Index and Surface Distress Index Method
Authors: Mahardika Andrew Ghea , Herawati  , Rachman Taufik , Nuryono Budi , Fadriani Hetty , Hidayat Iman , Ramady Givy Devira
Published: June 2021

Determination using field survey data and rough meter III tools, as well as theoretical sources on the determination and evaluation program of the International Roughness Index (IRI) method and the calculation of the Surface Distress Index (SDI) for flexible pavement based on research results from sta 00 + 000 to 02+ 700 IRI values: the average condition is moderate, 02 + 700 to 07 + 635 has a value of light damage to severe damage, SDI value: from sta 00 + 000 to 2 + 700 has a value of the good condition, 02 + 700 to 6 + 800 has a moderate condition value, and sta 02 + 600 to 7 + 635 has light damage to severe damage condition.
Energy Spectrum and Charge Composition of Laser Plasma Ions
Authors: Nasriddinov Sayfillo , Azamatov Zakir , Ismoilov Shuhratbek
Published: June 2021

A mass spectrometric study of the spectra of multi-charged ions A1, Cu, depending on the frequency v = 1, 3, 5, 10, 12 Hz and at q = 1011 W/cm2. It has been proved that with increasing q of laser radiation, the energy spectrum of ions expands towards high energies, and the energy spectrum also has several maxima, the number of which increases with increasing q of laser radiation. It has been experimentally proven that silicon ions with a charge Z > 6 recorded in a plasma formed from a γ-irradiated target under study are characterized by a lower minimum energy than an unirradiated target.
A Study on Drinking Water Distribution Project in Banda Aceh
Authors: Aidil Muntashir , Rauzana Anita , Muhammad Nasrullah
Published: June 2021

The goal of a construction project is to be able to carry out the construction project on time with the budget that matches the plan. However, due to several factors, cost overruns often emerge when executing a project. The purpose of this study is to analyze the dominant factor which leads to cost overruns on the drinking water distribution project in Banda Aceh. This study used primary data that were obtained by distributing questionnaires to contractors that are registered in LPJK company association of Aceh in 2020 and have ever been involved in the installation of drinking water pipes in Banda Aceh between 2015-2020. The population of this research was 62 contractors. By using Slovin equations, 54 contractors were selected as a sample of this research for a 5 percentile margin of error. The dominant factor that leads to cost overruns in drinking water distribution projects in Banda Aceh was caused by cost estimation factor with a mean value of 4,417. This indicates that based on the perception of the contractors, the dominant factor which lead to cost overruns in drinking water distribution projects in Banda Aceh was caused by cost estimation factor.
CSI Analysis of Transportation Services in Kabupaten Wakatobi
Authors: Fadriani Hetty , Afiyah Salamatul , Mahardika Andrew Ghea , Herawati  , Haris Samun , Sartika Ika , Muntiyono
Published: June 2021

The Wakatobi Islands are one of the national priority tourist destinations in the 2020-2024 Medium Term Development Plan (RPJM), but the level of transportation services is not yet adequate. The physical condition of the area in the form of an archipelago is one of the obstacles in transportation services besides the limited accessibility of transportation, the availability of facilities and infrastructure to support tourism and human resources. The purpose of this study was to determine public satisfaction with the level of transportation services in Kabupaten Wakatobi. The analysis method used is the Customer Satisfaction Index (CSI) and Importance Performance Analysis (IPA) using seven indicators of transportation services, namely network connectivity, intermodal integration, travel time, travel costs, comfort, safety, and security. Based on the CSI analysis, it was found that the public satisfaction score was 52.73% which was included in the sufficient category with a value range of 50% to 80%. The IPA results state that the most important indicators to be improved are travel costs, comfort, intermodal integration, and travel time.
Construction Project Evaluation Using CPM-Crashing, CPM-PERT and CCPM for Minimize Project Delays
Authors: Andiyan Andiyan , Putra Raditya Mandala , Rembulan Glisina Dwinoor , Tannady Hendy
Published: June 2021

This research conducted in one construction company in Indonesia, the company was facing several problems, many projects that already ended have delays. Overdue payment one of the projects can reach Rp 252.544.148.-. For calculating late payment that the company can save researcher using Critical Path Method (CPM)-Crashing. CPM-Crashing method can accelerate project duration by increase resource budget, so company doesn’t need to pay overdue payment. The result of CPM-Crashing is company can save Rp. 227.584.147.-late payment. To anticipate project delay proper planning is required. One of project planning method is project scheduling. Great loss because of the overdue amount, the company must evaluate their project schedule. The Researcher using CPM-Project Evaluation Review Technic (PERT) and Critical Chain Project Management (CCPM) both methods can give new project schedule. CPM-PERT can give probability project finish and CCPM can give new project schedule. The result of this research is probability project is not delay is very low that is only 55% project can finish on time, the company must try CCPM schedule.
Internet of Things Based Motorcycle Monitoring Application Development
Authors: Lestari Ninik Sri , Herawati  , Mahardika Andrew Ghea , Rachman Taufik , Suhendi Hendi , Mutaqin Asep Hilmi , Hidayat Rahmad
Published: June 2021

A common problem that occurs very often in society is motorcycle theft. The rampant cases of motorcycle theft, which are even carried out in the parking lot of homes, need to find the right solution. One solution to handling motorcycle theft cases and securing motorbikes is by installing smart vehicle technology. The purpose of this research is to design a motorcycle safety system based on the Internet of Things. The design uses the Arduino Mega microcontroller, the ESP8266 wifi module, a fingerprint sensor, and the Blynk application on a smartphone. Hardware design with fingerprint and microcontroller integration then designing IoT-based applications with the ESP8266 and combining a security system with notifications to smartphones. Application this can help to turn on and off the engine of two-wheeled motorized vehicles remotely, can assist users in supervising or monitoring two-wheeled motorized vehicles.
The Durability of Composite Cement Paste Using Diatomaceous Earth against Sodium Sulfate Attack
Authors: Nurmasyitah  , Hasan Muttaqin , Saidi Taufiq
Published: June 2021

In this study, the durability against sodium sulfate attack test of composite cement paste using diatomaceous earth was carried out. Diatomaceous earth was calcined in several processes, in order to obtain micro-particles with a more dominant silica content which was used as a mineral material to produce composite cement. The proportion of diatomaceous earth in composite cement was 0%, 10%, 20% and 30% of total cement weight. The amount of water was determined, so that a composite cement paste with normal consistency was obtained. Composite cement paste was made by mixing all the constituent materials in a mixer. The specimens were made in accordance with ASTM standards, namely cubes with 50 mm sides with 9 specimens for each mixtures. The test was carried out by immersing the specimens in 10% sodium sulfate solution for one and two months then the visual changes, loss of mass and changes in compressive strength were observed. Composite cement paste that experienced smallest damage was composite cement paste with 10% and 20% diatomaceous earth. Mass loss was occurred only in the original Portland cement paste after two months immersion. The compressive strength of the composite cement paste experienced the least degradation at 20% diatomaceous earth content.
Improvement of Binary Frequency Shift Keying Modulation Performance
Authors: Hidayat Rahmad , Rushendra  , Agustina Ellisa , Afiyah Salamatul , Herdiana Yudi , Mahardika Andrew Ghea , Lestari Ninik Sri
Published: June 2021

M-ary frequency shift keying (FSK) is a low-power, low-data-rate modulation scheme currently used by manufacturers of data transmission equipment. Inter symbol interference (ISI) occurs in all communication systems. To analyze the effect of the raised cosine filter and adaptive equalizer on reducing the ISI, the binary FSK (BFSK) modulation technique has been studied extensively in this research. In this study, we have selected the square root raised cosine filter and the sign least mean square (LMS) equalizer. The bit error rate (BER) performance of the 2-FSK system with the additive white Gaussian noise (AWGN) channel is evaluated and analyzed with the help of Simulink. The best BER value of 1.7e-03 was obtained in this study.
Dc Battery Optimization in 275 Kv Main Gardu to Improve The Reliability of the Control System
Authors: Birje Herman , Hasan Syafruddin , Pinem Maksum
Published: June 2021

This research focuses on optimizing the DC 110 V battery at the 275 KV substation in Pijorkoling Padangsidempuan, North Sumatra. By measuring the inverter connected to the battery side and the Human Machine Interface, it is found that the value of harmonic currents is in several orders, but because harmonic currents are in the 5th order, 11th order, 15th order, the author makes the LCL Passive Filter. on the output side of the inverter and Human Machine Interface in the hope of reducing the harmonic current. To make it easier for the author in the research, it was carried out using a mathlab-simulink simulation. The result is that the THDi inverter on the inverter decreases from 110.9% to 49.57% or it is reduced by 223.72%.
Smart Automatic Petrol Pump System Based on RFID and ESP8266
Authors: Baqir Zahra’a M. , Motlak Hassan. J.
Published: June 2021

Traditional methods of monitoring petrol pump in gas station by humans on site are unable to meet the expectations for efficiency, accuracy and cost. Setting up an RFID and ESP8266 based petrol station monitoring system is a good approach to improve monitoring efficiency and to improve management efficiency in stations. Although there are still some problems to be solved for RFID and WIFI technologies, their unique features still make the monitoring system based on them a promising system. The architecture of the RFID as prepaid system and ESP8266 as monitoring system in petrol station is presented in this paper.
Voltage Regulation and Power Consumption Analysis of LED Driver using Switched String Method
Authors: Defi Sry , Samman Faizal Arya , Sadjad Rhiza S.
Published: June 2021

This paper discusses an AC/DC buck converter-based LED driver to reduce the voltage from 230VAC to 12VDC with a few strings of LEDs. This led driver is designed with a cost-effective circuit because using a single inductor, single inductor multiple-output (SIMO) can reduce the number of components, control the current independently and precisely on each LED string simultaneously, compared to using an inductor on each LED string. To control current and voltage, PWM (Pulse Width Modulation) control is used as a MOSFET signal switch. This MOSFET calculates the duty cycle so that the desired DC output according to the LED specifications can be realized. The circuit was analyzed using PSpice software. The test based on the duty cycle shows that the highest output voltage is obtained with a work cycle of 10% resulting in a voltage of 5.9V and a current of 32.4mA. Meanwhile, achieving the output value based on the led specification with a voltage of 12V and a maximum current of 31mA has been achieved at a duty cycle of 4.7%. This AC/DC buck converter circuit not only lowers the voltage but can overcome dimming and provide a uniform light output on each LED with an output voltage of 12VDC. The experimental results show that this AC/DC buck converter circuit has been tested and can be applied to the Led driver system.
Synthesis of Al/Fe Pillared Bentonite: Characterisation and Analysis of Thermodynamic Parameter
Authors: Said M , Saputri L I , Purwaningrum W , Riyanti F , Hariani P L
Published: June 2021

The modification of bentonite by pillarization process of Al/Fe metal oxide has been carried with metal oxide with ratios 1:2 and 2:1. The product was characterized by FT-IR, XRD and pHpzc analysis. Thus, this optimal pillarization product was used as an adsorbent of Congo red and Direct green dyestuffs. The FTIR characterization does not show optimum pillarization processes for any metal oxide ratios, while the XRD analysis shows the optimum pillarization processes at ratio 2:1 i.e. 17.1 Å. In addition, the optimum pH for absorption of Congo red took place at 2 while for Direct green at 3. At 70oC, the highest adsorption capacity (Qe) reached 57.34 and 72.06 mol/g; and the highest adsorption energy (E) was found 3.23 kJ/mol and 4.14 kJ/mol for Direct green for Congo red and Direct green, respectively. Vice versa, the enthalpy (ΔH) and entropy (ΔS) values decreased as the increase of both Congo red and Direct green concentration.
An Assessment of Teachers’ Readiness for Online Teaching
Authors: Suryanti Sri , Sutaji Deni , Nusantara Toto , Subanji
Published: June 2021

Teachers in online learning play an important role in success or failure in the online learning system. Their ability to design learning content in LMS affects the quality of information presented, the interaction in learning and student satisfaction during lectures. This study aims to check the readiness of teachers at the Universitas Muhammadiyah Gresik in online learning by using two measuring instruments, namely the results of monitoring the completeness of the content of courses in LMS as well as a survey conducted on 209 teachers using a questionnaire of teacher confidence in TPACK consisting of 11 items. The response of 209 lecturers was analyzed descriptively from data obtained from online surveys, while rubric completeness of courses using the category of completeness with a scale of 1-5. The assessment results of the completeness of the content of the courses showed that 57% of courses had complete content, 14% of courses had fairly complete content, and 29% of courses had incomplete content. While the survey results on teacher readiness show TPK component are believed to be the essential component in online teaching readiness.
Identifying Students’ Mathematical Argumentation Competence in Solving Cubes and Pyramid Problems
Authors: Tristanti Lia Budi , Nusantara Toto
Published: June 2021

This article aimed to describe students’ mathematical argumentation competence in solving cubes and pyramid problems. The kind of problem to be solved in this study referred to proving. The students’ mathematical arguments were thoroughly analyzed using Toulmin scheme. It used qualitative method. The data was collected by asking 40 students to do argumentation task by thinking out loud strategy. The subject’s works would be compared to the problem structure based on the Toulmin scheme. From data analysis, it found three kinds of mathematical arguments the students had made to solve cubes and pyramid problems. Those three mathematical arguments were inductive-incomplete, inductive-complete, and deductive arguments.
Determining Supply Chain Network Using Location, Invetory, Routing Problem (LIRP) Approaches
Authors: Meutia Sri , Anshar Khairul , Subhan
Published: June 2021

This research is motivated by the large number of complaints of the poor and micro-scale industries that have to buy 3 kg of LPG gas above the highest retail price set by the Aceh Government, Rp. 18,000. There are several cases where people have been forced to buy at almost double the price (> Rp. 30,000). One of the main causes of this spike is the unavailability. To ensure the availability of these goods, it is deemed necessary to establish a goods management policy (logistics system) which includes decisions on the allocation of goods distribution, inventory policies of all entities in the system being observed, and their delivery routes. With the formulation of an optimal goods management policy, it is considered to ensure the availability of goods which will lead to an appropriate selling price and, no less important, to reduce the management cost which has the effect of reducing the need for subsidies that must be issued by the government. The model used as a problem solving tool for the integration model of determining the location, inventory policy, and allocation delivery routes is classified as a Location-Inventory-Routing Problem (LIRP). The LIRP model is then performed optimization to determine which agents should operate, inventory policies at agents and bases, and delivery routes. From the model developed, it was concluded that only one operating agent was needed to supply 3 kg LPG gas, which served all bases operating in six villages in Muara Dua District, Lhokseumawe City.
Readability Analysis of College Student’s Written Outputs using Grammarly Premium and Flesch Kincaide Tools
Authors: Avila Ernie C. , Lavadia Mary Kris S. , Sagun Randy D. , Miraña Ana E.
Published: June 2021

This descriptive study determined the Readability Analysis of College Student’s Written Outputs using Grammarly Premium and Flesch Kincaide Tools for the First Semester of Academic Year 2020-2021. This involved the documentary analysis of the essays of the 290 freshmen students enrolled in six courses in Polytechnic University of the Philippines-Ragay, Camarines Sur Branch. It revealed that using the said two programs both revealed that the writing ability of the participants are not within the expected level of a university student, but for Grades 8 to 11 only; thus, it is recommended that Senior High School English teachers should use innovative strategies in teaching writing academic and non-academic texts. The content and language editing strategies to hone the student’s writing composition competency can be measured by appropriate college admission tests intended for writing readability assessment only.
The Mobile Learning Implementation for Physics Lesson in Indonesia: A Narrative Review
Authors: Sulisworo D , Kusumaningtyas D A , Prasetyo E , Fitriah  , Fitrianawati M , Erviana V Y
Published: June 2021

Indonesia is an archipelago with a vast landscape. Equal access to education has been an important issue in improving the quality of education to support human resource provision. This study is a narrative review study based on reflections during conducting multi-year research from 2015 to 2020 funded by MOEC. During the research period, authors arranged socialization, training, mentoring, and measuring the impact of mobile learning implementation in rural and remote areas, especially in eastern Indonesia. The results of this study indicate that there is good potential for mobile learning to support equitable access to education. Governments need to consider several essential aspects so mobile learning can work well. The aspects are the readiness of infrastructure and the readiness of technology acceptance by educational decision-makers and principals. The results of this study, as a whole, can be used as a basis for developing various educational policies in the disadvantaged region.
Technology-Enhanced Learning Research In Higher Education: A recommendation System For creating Courses Using the Management Systems in the E-Learning 5.0
Authors: Dewi Putri , Elihami Elihami , Usman Muh Ilham , Asbar Asbar , Saidang Saidang
Published: June 2021

The purpose of this research was technology-enhanced research in higher education. Design-based research for creating courses using the management system in the E-Learning 5.0 has proven its promise as a tool useful for both research and design of technology-enhanced learning environments over the last decade (TELEs). In this article, we characterize and explain design-based research characteristics, outline the relevance of design-based research in the creation of TELEs, suggest principles for applying design-based research with TELEs, and address potential challenges in using this approach. This inaugural special issue of Studies in Technology Enhanced Learning focuses on ‘theory,’ a controversial subject. While theory has been criticized for being vague or alienating at times, it is safe to conclude that theory has never been as profoundly rooted in Technology Enhanced Learning (TEL) science as it has in many other fields of scholarship.
The Use of E-learning as an Online Based Arabic Learning Media for Students
Authors: Ritonga Apri Wardana , Zulfida Sri , Ritonga Mahyudin , Ardinal Eva , Susanti Dini
Published: June 2021

The distance learning system requires schools and teachers to be able to take advantage of the online platform as a medium to support the learning process. This study aims to analyze the use of E-learning as a medium for learning Arabic in Ma’had SMA Islam Sabilillah Malang. This research uses a qualitative approach with a case study method. Data were collected through observation, interviews and documentation study. The data analysis technique uses Milles and Huberman’s theory, namely reducing, presenting and verifying data. The results of this study indicate that; 1) the use of E-learning causes a transformation of learning from a collaborative approach to an individual instructional approach in Arabic learning, 2) Arabic learning patterns using E-learning change student dependence on teachers to become dependent on learning instructions contained in E-learning. The findings of this study illustrate that learning Arabic using E-learning will be meaningful for students if the subject matter is well designed and clear.
The Effectiveness of Scrabble Game Media in Improving Learning Outcomes
Authors: Khaira Mutia , Ritonga Mahyudin , Halim Syaflin
Published: June 2021

In this digital era, technology-based learning media are attractive to students because it improves their learning outcomes. Therefore, this study aims to determine the improvement in learning outcomes for Arabic vocabulary using scrabble game media. It was designed using a quasi-experiment with a sample of 81 people. Furthermore, the data collection technique was conducted through pre-test and post-test, as well as analyzed by SPSS 26. The results showed that students’ Arabic vocabulary ability is improved by using scrabble game media. This conclusion followed the results of the Mann-Whitney analysis and the N-gain test, where the highest score was in the experimental class after treatment.
Development of the online course for training master students majoring in mathematics
Authors: Vlasenko K V , Lovianova I V , Rovenska O G , Armash T S , Achkan V V
Published: June 2021

This article considers the issue of implementing a model of blended learning to prepare master students majoring in Mathematics (speciality code in Ukrainian educational system “014 Secondary Education. Mathematics”). The research analyses the existing developments of the issue about the use of blended learning while training would-be mathematics teachers. The researchers determined and explained the stages of work on developing the online course “Methods for Teaching Mathematics to Students at Technical Universities”, that is used when students learn methodological subjects of the curriculum. The research describes the development of the theoretical online course model and methodological recommendations on the learning materials and preparing papers for the course. The article offers recommendations related to the course structure. The course developers defined the usability criteria of the educational platforms, determined the stages of course users’ activity, their content, and organization. The research describes the areas of online course activity management, the course tutors’ and moderators’ teamwork is defined as the main condition of its development and support. In order to prove the efficiency of implementing blended learning of the methodological subjects, an experiment was carried out during the assistant practice in technical universities that master students of the specialization “Mathematics” had. The results allowed confirming the efficiency of students’ practical training during blended learning of the methodological subjects that in its turn encouraged the improvement of the assistant practice results.
Some applications of the GRAN1 to analyze two-dimensional continuous probability distributions
Authors: Zhaldak M I , Franchuk N P
Published: June 2021

The article considers the use of GRAN1 software in the analysis of two-dimensional continuous probability distributions. The learning process can be provided by freely distributable software, through the use of cloud technologies, in particular software from the GRAN package. However, the use of any technology in the educational process, including modern information and communication technologies, as well as the content of education, must be pedagogically balanced, which will avoid any negative consequences for the formation of the future member of society, his mental and physical development. Attention is drawn to the fact that children are increasingly looking for entertainment, using mobile devices, sharing new products with their peers and spending time together, playing a variety of online games, and parents cannot control this process. At the same time, teachers conduct lessons using mobile devices to draw attention to the subject, they are teaching. In the process of using computer technology, students can form a special type of thinking, the so-called “clip consciousness”, which leads to fragmentary thinking and the irreversibility of changes in consciousness. Therefore, the problem of excessive use of mobile devices by children requires constant analysis and coverage. The article discusses some examples of using the GRAN1 software to solve problems in probability theory. Examples of approximate calculation of the value of the double integral are given. Tables of values of the corresponding integrals are described. The use of modern information and communication technologies during mathematics lessons is considered.
A competency-based approach to the systematization of mathematical problems in a specialized school
Authors: Vlasenko K V , Lovianova I V , Armash T S , Sitak I V , Kovalenko D A
Published: June 2021

The issue of searching for new methodological approaches to the systematization that will encourage the increase of students motivation to learn mathematics under the competency-based approach is considered in this article. The research analyzes the existing works on the increase in students motivation to learn Mathematics, in particular, the use of cross-curricular connections while forming students competency. Competency-based problems, systematized according to the topic of the 10th grade Functions, their features and graphics, were determined as the tools to measure students competency and a method to form their motivation to learn mathematics. The use of such methods as the initial research and information gathering, systematization and structural analysis of the problems, data processing allowed the authors of the article to systematize the problems for school subjects of the 10th grade that demonstrate cross-curricular connections of Mathematics with other learning subjects and allow showing the advantages of the mathematical modeling in researching real processes. The research shows the realization of cross-curricular connections in time and such connections as parallel learning, perspective connections, use of the mathematical modeling method are shown. An experiment was held in order to prove the efficiency of implementing a system of the problems to demonstrate the use of the function in different tasks of natural subjects. The results proved that the implemented system of problems considerably influences the increase in students motivation to learn mathematics.
Hyperbolic geometry in general education: comprehending the incomprehensible
Authors: Lénárt I
Published: June 2021

This paper is a self-independent continuation of my article on Comparative geometry between the plane and the sphere that was presented at the previous edition of ICon-MaSTEd Conference 2020. Below I discuss the possibility of adding a third geometry to the plane and the sphere, namely, the hyperbolic geometry on the hemisphere. I describe my own path to the subject, then the content of the syllabus which contains basic concepts of hyperbolic geometry for future preschool, elementary school, and secondary school teachers. Finally, I give reasons to introduce the subject into primary and secondary schools, not just for the “talented” but also for the “average” students.
Construction of cubic splines for interpolating functional dependencies and processing the results of experimental studies
Authors: Osadchyi V V , Yeremieiev V S
Published: June 2021

Algorithms for constructing cubic splines with different boundary conditions have been developed: 1. The second derivative takes arbitrary values at the ends of the spline. A special case is the “natural spline”, when the second derivative at its ends is equal to zero. 2. At one end of the spline, the first derivative is given, and at the opposite end – the second derivative. 3. The first derivative is given at the two ends of the spline without any restrictions on the second derivatives. The proposed methods were tested on the example of interpolation of the function 10x sin xe

−x
for the interval [0, 1]. The relative calculation error for the number of nodes n = 10 was about 10−2. With an increase in the number of nodes to 1000 and 10000, the error increases, respectively, to 10−6 and 10−7 −10−8. It is shown that a number of problems with other boundary conditions can be solved using the proposed methods. The considered algorithms can be used for interpolating functional dependencies and processing the results of experimental studies, represented as a discrete set of pairs of numbers.
Soft Skills in Software Engineering Technicians Education
Authors: Varava I P , Bohinska A P , Vakaliuk T A , Mintii I S
Published: June 2021

The research work analyzes the problem of forming software engineering technicians’ soft skills, approaches to defining the list, detail and the maturity level of software engineering technicians’ soft skills and basic ways of their formation, in particular: development of new academic programs or individual innovative courses, the problem-oriented approach, the AGILE approach, gamification of learning, development of interdisciplinary courses, etc. The obtained data enable developing methodological recommendations to form software engineering technicians’ soft skills when studying the humanities and social sciences and experimentally investigating their efficiency.
Integrating business simulations software into learning environment of technical university
Authors: Antoniuk D S , Vakaliuk T A , Ievdokymov V V , Morozov A V , Kontsedailo V V
Published: June 2021

The development of active learning approaches and the need in raising economic competency of the people within all the age groups brings business simulations software to the front of the appropriate tooling lists. The aim of the study considers the ways and approaches to introduce and effectively integrate business simulations software into learning environments of technical university. The object of the study is the learning environment of Technical University. The subject of the study is using business simulations software in the learning environments of technical university. The result of the study: several approaches of integrating business simulations software into a learning environment of technical university were analyzed and discussed. The paper is dedicated to generalizing practical experience of the authors in technical and logical implementation in the pedagogical practice, usage of business simulations software as students and users with theoretical research of broader set of approaches used to integrate business simulations software into educational software-based and organizational environments. Conclusions and future plans based on the results of the experiments were made. Main conclusions and recommendations: the range of approaches between deep integration with the learning management tools used in the learning environments and independent usage of business simulations software is possible to implement. Choice of approach depends on the goals, ICT-related maturity of the learning infrastructure and the percentage of active learning cases in the syllabus of the class. Future experimentation is needed to collect extensive data on integration possibilities, efficiency and effectiveness of the level of integration of business simulations software into learning environment of technical university.
Communicative patterns for IT professionals as means of mastering communication skills
Authors: Symonenko S V , Zaitseva N V , Osadchyi V V
Published: June 2021

The paper deals with the aspects of English communicative pattern implementation into IT professional training. It is emphasized that the communicative pattern usage enhances prompt and fluent profession-related real-life communication and it is the essential part of education of IT specialists. Peculiarities of communication in the IT environment are highlighted. Considering typical situations and issues of communication the guidebook which contains recommendations and communicative patterns for IT undergraduates both for oral and written communication has been developed. In order to evaluate the purposefulness of the guidebook implementation in IT specialist training, two surveys (among lecturers and among undergraduates) of six universities have been conducted. The guidebook has proved to be suitable for practical classes, independent learning and laboratory works in humanities and profession-related disciplines. The survey conducted among English teachers has proved the increased interest, higher motivation and willingness to participate in communicative tasks crucial for specific employment.
IPHC emittance-meters: design and development
Authors: Bouquerel E. , Maazouzi C.
Published: June 2021

The Institut Pluridisciplinaire Hubert Curien (IPHC) of Strasbourg, which celebrates its 15th year in 2021, is composed of four departments. Each of these departments comes from a different scientific horizon such as eco-physiology, chemistry, subatomic research and medical imaging. IPHC was created with the ambition of having different competences to develop high-level multidisciplinary programs with the basis of scientific instrumentation. Beam diagnostics is one of the main fields that has been intensively investigated during all these years within the team of the Instrumentation of Accelerators. This paper focuses on one of its major achievements, the Allison emittance-meter, developed in the framework of SPIRAL2, MYRRHA and FAIR projects.
Global mean frequency increases of daily and sub-daily heavy precipitation in ERA5
Authors: Chinita Maria J , Richardson Mark , Teixeira João , Miranda Pedro M A
Published: June 2021

Changes in heavy precipitation frequency can be viewed as a change in the event return period, a common metric of risk. Compared with intensity, frequency changes are less well-studied and past work has largely been constrained to analysis of well-instrumented regions. We exploit the latest ERA5 reanalysis and its global hourly accumulations at 1/4° spatial resolution and apply a metric that captures frequency changes across both wet and dry regions. According to ERA5 and in a global average sense, during 1989–2018, hourly events that occurred once per year in 1979–1988 increased in frequency by 71 (53–93, 95% range) %, while the one day per year heavy event frequency increased by 44 (37–54) %. Thus, hourly events that occurred once per year in the baseline decade are on track to double in frequency by 2021–2030, and the daily events by 2047–2056. Furthermore, our results replicate prior findings that relative frequency increases are larger for increasingly rare events, and for the first time we quantify that mean frequency increases have been greater over ocean than land. Ocean increases are larger by factors of 3.0 and 2.1 for the hourly and daily events that occurred once per year in 1979–1988, respectively.
A preliminary ecological analysis of spring water in Al-Shanafiyah District, Al-Qadisiyah Province, Southern Iraq
Authors: Matrood Marwan Jaber , Hussein Haider Mashkoor
Published: June 2021

This research was conducted to assess the quality of spring water in the Al-Shanafiyah area of the Diwaniyah Province for a period of four months from September to December 30, when 3 samples were taken at average rates from Al-Qaim, Mashaher, and Obaid. The result showed that pH is natural and used for drinking and irrigation According to all samples and their most recent arrival (7.2-7.9), the standard limit for drinking water was noted (6.5-8.5). From turbidity effects in Al-Qaim spring water stays within its full limit per month, the standard limit for drinking water should be 5 NTU, but in the Obaid, spring water was allowed, except in November (10.1) NTU and December (11.2) NTU, to exceed the permissible limit, and readings exceeded normal Limits of pure drinking water, as shown in the Mashaher spring water, range (10.5-17.07) NTU results showed that the cataract was more saline special. The results showed a high degree of stiffness, except for the Al-Qaim spring. Alkaline Cataract readings still stay within the upper limit, despite their simplicity Increased levels and more than 200 mg/l of sulfate readings It should be observed to increase in all samples and to hit (1761-2351.5) mg/liter for all months, hence chloride readings confirm that this is the appropriate limit, remember the normal limit It should not exceed (600) mg/liter.
Effect of the genetic structure and sex local Iraqi chicken and Brahman in some hematological treaties
Authors: Taha Ahmed T. , Hasan Aljumaily Tareq Khalaf
Published: June 2021

This study conducted in the Physiological Laboratory of the Department of Animal Production/College of Agriculture/Tikrit University, with the aim of finding out the effect of the genotype and sex of local chickens and Brahma chickens on some hematological traits. Used 24 blood samples, twelve samples from local chickens and Brahma chicken, with six samples for both sexes. After performing the hematological analyzes, the following results showed A significant effect of the genotype was observed in the TCH, HB, MCV and MCH. Moreover, it showed a significant increasing for domestic chickens compared to Brahma chickens. The total number of red and white blood cells did not significantly affect the genotype. Sex had a significant effect on most of the studied traits (HCT, HB, RBC, MCV, and, MCHC), where males significantly outperformed females. The interaction between genotype and sex had a noteworthy impact (p≤ 0.05) on most ofthe considered characteristics, and it by and large demonstrated a noteworthy diminish within the examined characteristics in female Brahma chickens compared to male and female residential chickens and indeed male Brahma. However, not effect in WBC count. From the results local chickens recorded to exceed expectations in most of the physiological characteristics and for both genders, the immune status of both genetic structure was rise to, and this may show the versatility of the Brahma chickens to the Iraqi airspace.
Preparation and Characterization of MWCNTs-Chitosan Composite
Authors: Hassan Fatima F. , Karam Faiq F
Published: June 2021

The present work aims to prepare Multi-walled carbon nanotube acid (M WCNTs-COOH) by using fragments Flam Deposition technique (FFD), grafting CNTS with Chitosan (CS) to prepare (CS-OMWCNTs)composite. Each of the following techniques is used to characterize the components of composite x-ray diffraction (X-RD), Fourier Transform Infra Red (FT-IR), Raman spectra, Field emission scanning electron microscopy (FESEM), transmitted electron microscope (TEM), and Laser Particle Size Analyzer technology. The results of the laser particle size analyzer showed that the particle size ranged between (87.8-403.3). Pattern of XRD showed that its diffraction spectrum contains crystalline materials with a good atomic arrangement of atoms with graphite, while SEM microscopy revealed that the average diameter of the tube was 40 nm. Raman Spectroscopy showed ID/IG ratio of 0.6, which means a lower degree of distortion in the compositional structure of the carbon nanotube. AS for TEM technology, it showed the attachment of carbon nanotube to the surfaces of chitosan. FT-IR showed the active groups present on the surface of carbon nanotube such as (COOH, OH)
The antibacterial activity of Althaea officinalis L. methanolic extract against some nosocomial pathogens in vitro and in vivo
Authors: Lateef Al-Awsi Ghaidaa Raheem , Alsudani Ali A , Omran Faiza Kadhim
Published: June 2021

Althaea officinalis (A. officinalis) has been traditionally used to treat various infections. However the data on its antibacterial activity are scarce. Our aim was to study the antibacterial characteristics of A. officinalis methanolic extract against standard strains of Klebsiella aerogenes (K. aerogenes), Streptococcus pneumoniae (S. pneumoniae), Staphylococcus aureus (S. aureus) and Pseudomonas aeruginosa (P. aeruginosa) by in vitro and in vivo studies. Total flavonoid content was determined using spectrophotometry. The minimum inhibitory and bactericidal concentrations (MICs and MBCs, respectively) of A. officinalis were determined against bacterial species using both broth dilution and agar diffusion assays. In vivo experiment was performed using BALB/c mice in a model of S. aureus and P. aeruginosa skin infections. MIC and MBC of the extract was 100 mg/mL and 200mg/mL respectively against S. aureus and 50 mg/mL and 100mg/L against other pathogens. Exposure of 100mg/mL and 200mg/mL of methanolic extract significantly decreased P. aeruginosa and S. aureus growth (p<0.0001). The total flavonoid content of the extract was 973.09 ± 16.14 mg/gr. A. officinalis methanolic extract exhibited observable antibacterial activity in vitro and in vivo. The flavonoids mostly participate in A. officinalis antibacterial traits.
A study of lead pollution element in selected samples of soils of some areas of Anbar province, Iraq
Authors: Mahmood Bashar Abdulazeez , Mejbil Mahmood Amin
Published: June 2021

This study aims to estimate the levels of lead pollution in soil samples from the selected sites in Anbar Governorate, represented by some schools, mosques, residential neighborhoods, industrial neighborhoods, hospitals, health centers, markets, public parks, etc., where (70) samples were collected and analyzed at different depths, from(10 to 5) cm. and from(10 to15) cm, to measure the concentration of the element of lead, and the results showed that the percentage of lead in most areas was within the permissible ratios globally, except for some areas, the percentage of lead exceeded the permissible limits, and after discussing the results, it was found that the areas in which a significant increase was found in The concentration of lead is a result of human and industrial activities such as transport, factories, and factories, especially the areas close to them, because these causes lead to lead in the air and deposited on the ground, so areas crowded with cars and electric power generators installed inside residential neighborhoods and fueling stations are the main sources of lead in the air and soil of those Regions.
Theoretical Study and Evaluation of Charge Transfer Rate At Zn Metal Contact with SnO

2
Semiconductor Devices
Authors: Al-Agealy Hadi J. M. , Mohammed Raghad L.
Published: June 2021

In this paper, the tin oxide SnO2 has been used in Zn/SnO2 junction devices structure to investigate the electric characteristic and charge transfer rate stability. The Zn/SnO2 Hetrojunction structures have been utilized to investigated the charge transfer rate using the quantum transition theory. The charge transfer rate properties of Zn/SnO2 devices with the orientation energy of configuration has been studied by quantum analysis of electronic transfer between donor and acceptor materials with MATLAP simulation program. It has been estimated and investigated using the work function of Zn metal and electronic affinity of SnO2 adding interface junction, which consists of higher doped SnO2 with the variation of energy absorption parameters of Zn metal, it influenced the electric properties of Zn/SnO2 devices due to limited transfer of charge. The orientation energy is effected with dielectric and refractive indices for metal and semiconductor. The orientation energy effected on the electric properties behavior in Zn/SnO2 devices due to results of charge rate. The charge transfer rate is increased with increased the overlapping strength coupling and reach to maximum at coupling 1.60 for all energy of system. From the calculation result of charge transfer rate, the rate is best at 2.119eV and has been achieved for Z/SnO2 devices with orientation energy 0.06267eV.
Lead Removal From Simulated Wastewater Using Magnetite As Adsorbent With Box–Behnken Design
Authors: Farise Sabaa B. , Alabdly Hussein A. , Hasan Ali A.
Published: June 2021

The current education explores the magnetite aptitude by way of adsorbent in eliminating lead metal from simulated wastewater (SWW). The effect of magnetite dose, initial lead concentration, pH solution, and Adsorption time on the elimination procedure remained explored. The adsorbent remained considered through different instrumental methods (FTIR, SEM, and surface area analyzer) and was rummage-sale aimed at the elimination of Pb2+ metals from SWW. It remained initiate that the lead elimination touched 88.9 % through 0.3 g magnetite dose,75 min,2 ppm original concentration of lead thru pH = 6 at room temperature. The limits of adsorption were strong-minded aimed at heavy metals adsorption utilizing Langmuir and Freundlich isotherms. The consequences deliver robust evidence to support the adsorption mechanism hypothesis.