bluuebunny/crossref_metadata_2025_split huggingface dataset:
Creative thinking profile of students in the completion of the area of 2D-shapes reviewed from the type of personality of Myer-Briggs dimension
Authors: Murtianto Y H , Rahmawati N D , Apriana D 
Published: October 2020

Abstract
Creativity is a 21st Century skill that is needed by everyone. Creativity is born from the ability to think creatively. But, no one has connected creativity with personality. Personality The Myer Briggs’ dimension consists of 4 types of guardians personality students like coherent and systematic learning. Artisans’ students like active learning. Rationals students love the knowledge that uses logic. This study aims to determine students’ creative thinking abilities in solving mathematical problems in terms of the personality type dimensions of Myer-Briggs. The method used in this research is to use qualitative methods. Data collection was carried out in three stages, using questionnaires, written tests, and interviews. The survey was distributed throughout grade VII, and then one student was taken from each personality. The results showed the Guardian subject solves mathematical problems by arranging one or two ways, and the resulting method is fluent and flexible. Artisan’s subject solves mathematical problems by arranging one or two ways, and the resulting method is fluent and flexible, but still, there are misconceptions. Rational and Idealist subject solves mathematical problems by arranging one or two ways, the resulting method is fluent and flexible, but some answers are not new.
Student’s computational thinking skill in solving a problem of convergences or divergences of series in freedom of learning program
Authors: Dian M 
Published: October 2020

Abstract
This research aimed to find the connection between the trends in the Freedom of Learning Program and computational thinking (CT) practices to see if the Freedom of Learning Program could be used for developing students’ CT Skill. The other goals of this research are to analyze how these trends and CT practices apply in a mathematics learning activity. The methods used in this research are the combination of the library and field research. This research also using a qualitative approach, and the results produced are descriptive data. Library research used to find the CT practices that could be applied in the nine trends in Freedom of Learning. Field research is used to analyze a student’s mathematics learning activity to find CT practices and the trends that appear in the learning activity. The results of this research are (1) the CT practices could be applied in every trend with the students as the object of it, (2) in the learning activity every CT Practices (abstraction, decomposition, debugging, and patterns) appear, (3) Some trends of Freedom of Learning Program appear in the learning activity like the learning activity could be done anytime and anywhere, personalized learning, free choice, and project-based learning.
Ethnomathematics for congruence concept: a didactical design in a mathematics classroom
Authors: Kusumaningsih W , Supandi S , Ariyanto L 
Published: October 2020

AbstractThe purpose of this study is to design mathematics learning with a realistic mathematics-based ethnomathematics approach with the concepts of congruence in junior high school students by didactic design research’s stage. Didactic design is based on identifying student learning obstacles in the learning process barriers to student learning primarily through group discussion forums with secondary school teachers in Semarang. The research method is qualitative in the form of didactic design research using techniques triangulation (combining participatory observation, interviews with teachers, questionnaires, and document studies). The identification results of students’ learning difficulties are used to design learning and teaching materials. Teaching material is based on ethnomathematics and uses a realistic mathematical approach. The results of the validation show that teaching materials are appropriate to use. The material aspects and DDR receive input from the validator, primarily related to the use of realistic and ethnomathematics learning approaches. For the overall ranking scale, the validator generally gives a good rating. The revised results were tested on a small scale and large scale, with the average trial results showing excellent results. So, the instructional materials designed could be used to overcome the obstacles of student learning in the material congruence of flat fields.
The COVID-19 impact on statistical learning at State Islamic University in East Indonesia
Authors: Nisa K , Mujizatullah M , Idham I , Nawawi M I , Darwis D , Amiruddin A , Israpil I , Arsyad A R 
Published: October 2020

Abstract
This research aims to describe the portrait of statistical learning before COVID-19 at State Islamic University in east Indonesia, the transformation of the blended learning to full e-learning in statistical courses as the impact of the COVID-19, as well as the challenges and opportunities of statistical courses with full e-learning in COVID-19 situations. The type of this research is descriptive qualitative. Data obtained by telephone interviews with five lecturers from State Islamic University in east Indonesia. The data analysis technique consists of data reduction, data display, and verification. The results of this research show that lecturers have applied e-learning in statistics courses at State Islamic University before the COVID-19. Although face to face learning methods is more dominant used in statistical courses than e-learning methods. The dominant learning media used by lecturers in statistics courses during COVID-19 are WhatsApp and Google Classroom. The biggest challenges faced at statistical courses by e-learning systems are the availability of a stable internet network, and some students do not have personal computers and even mobile phones. As good news, this situation can challenge lecturers and students to be more literate and accustomed to technology. Some lecturers even make YouTube account to support statistical learning.
Integration of educational robotic in STEM learning to promote students’ collaborative skill
Authors: Latip A , Andriani Y , Purnamasari S , Abdurrahman D 
Published: October 2020

Abstract
The study aims to determine the effect of integration of educational robotics in STEM learning to promote students’ collaborative skills. Collaborative skills can be developed by implementing learning strategies that lead to learning activities as hands-on activities, technology engagement, and teamwork between students. These learning activities can be covered by integrated educational robotics in STEM learning. The descriptive method with a quantitative approach was applied in this research with 36 ten-grade students as subject research. The teacher team observed students’ collaborative skills before and after the implementation of STEM-Robotic learning. The observation using the instrument that developed based on indicators of collaborative skills activities. Collaborative skills activities consist of participation, perspective-taking, and social regulation. The results showed that STEM-Robotic learning can promote students’ collaborative skills in participation aspects by 55.93%, perspective-taking aspects by 56.03%, and social regulation aspects by 67.34%. The results indicate that STEM-Robotic learning is an alternative learning strategy that can be implemented to develop 21st-century skills, especially collaborative skills.
Developing android-based arabic-Clock Angle game for eighth-grade mathematics at MTs YMI Wonopringgo Pekalongan
Authors: Fajhriah E N , Mustakim Z , Ali J , Kamal R 
Published: October 2020

Abstract
The use of media in MTs YMI Wonoringgo Pekalongan is still not optimal, especially in a mathematic lesson. It causes student difficulty in understanding the concepts conveyed by the teacher and low motivation so that students are less able to solve problems in studying. Thus, it is hoped that through Arabic angle o’clock game media, students can more easily understand angle math concepts and mastering Arabic vocabulary of o’clock material. The purpose of this study is to produce an android-based Arabic angle o’clock game media in learning mathematics to eighth grade at MTs YMI Wonopringgo Pekalongan. The research method uses the waterfall model (Analysis, Design, Implementation, Testing, and Maintenance). The research subjects were students of eighth grade at MTs YMI Wonopringgo Pekalongan. The sampling technique uses cluster sampling. The result of this study are Arabic angle o’clock game media with the result of the media expert validation with a percentage of 89%, the results of the material expert validation of were 90%, and student responses 88,14% with very suitable/very feasible criteria. Thus, this product is appropriate to use as mathematics learning media in angle o’clock material and increase student to mastering Arabic vocabulary about o’clock in MTs YMI Wonopringgo Pekalongan.
Teacher performance toward students’ mathematical literacy in teaching linear program mathematical models
Authors: Shaumiwaty S , Lubis M A , Lubis T , Dardanila  , Purba A , Nasution T , Ramlan  , Hasrul S 
Published: October 2020

Abstract
The teaching technique is essential to reach students’ literacy goals in learning. This study discussed the teachers’ role in teaching math toward the students’ mathematical literacy in teaching linear program mathematical models. The focus of research is to determine patterns of teachers’ performance in teaching math in the classroom. The ethnography method was applied in this study. Besides, to find out the pattern of the teachers’ performance, the anthropolinguistic approach was used. The pattern of performance is essential data that can describe the phenomena of speaking activities related to mathematical literacy. With the discovery of the teachers’ performance, it can be seen how to apply the teaching model in the next effective teaching and learning process. Research data were video recordings, in-depth interviews, and participatory observation. The results showed that the performance of math teachers in learning mathematics was teaching and examining. They were represented through statement and command language function dominantly instead of question and offer. Statements were encoded with declarative sentences, and command encoded in imperative sentences. Consequently, it affected the low level of student math literacy due to strict learning performance and lack of education part as one of literacy students’ requirements.
Development of methods for automated determination of forest resource parameters using multispectral survey data from unmanned aerial vehicles
Authors: Aleshko R , Bogdanov A , Shoshina K , Ilintsev A 
Published: October 2020

Abstract
One of the most essential renewable resources in the world is the forest. An important issue in the forest industry today is the lack of relevant, reliable and regularly updated information on forest resources. Over the years, this problem has been addressed through labour-intensive field methods. However, in a competitive market and development of high-tech data collection and analysis tools, another issue becomes apparent – the low reliability and detail of the existing remote automated tools of data acquisition on forest resources. The research presented in this article is aimed at addressing this issue. The results of the work built on modern methods and approaches will provide an impetus for the introduction of digital technologies to many business processes of the forest industry.
Common problems of the forest industry and institutional background for its innovative development in Baikal region
Authors: Dayneko D , Dayneko A , Dayneko V 
Published: October 2020

Abstract
The work presents the systematization of the main problems in the Forest industry and institutional background for its development in Baikal region. These problems include the following: production and technological, natural and environmental, institutional and organizational, and problems of the forest protection. The innovative development issues in the Forest industry of has been discussed. The implementation of the Forest innovation system is suggested for sustainable Forest industry management and based on expert opinions to be derived via a special questionnaire distributed.
The study of prehistory and chemical properties of soils on their allelotoxicity formation
Authors: Fedotov G , Gorepekin I , Shalaev V , Batyrev Y 
Published: October 2020

Abstract
The influence of prehistory (land-use history) and soil chemical properties on their allelotoxicity was studied on 12 soil samples of East-European plain with the use of 6 seed cultivars of spring wheat as well as seeds of barley, rye, and triticale. It is shown that despite differs ratio between the values of inhibition for different cultivars, their inhibition order on various soils preserves generally. Land use-history has a significant influence on soil allelotoxicity values: soil samples from territories of agricultural use have higher allelotoxicity in comparison with fallow areas. The experimental data show that crop rotations are not always able to reduce soil fatigue. This makes it necessary to assess the real soil fatigue (soil allelotoxicity) under the crop rotation. The material under consideration, methodological approaches and conclusions can be used in forestry.
The influence of weather conditions on the effectiveness of preventive fire retardant treatment of forests
Authors: Gedjo V M 
Published: October 2020

Abstract
We discuss the influence of weather conditions (increased humidity, rain, snow) on the effectiveness of preventive fireproof treatment of forests and soil with amidophosphate KM. The dependence of the required level of fireproof treatment of forests and soil on the amount of precipitation during one calendar year has been established. We also estimated the minimum required amount of amidophosphate KM for repeated preventive treatment of forests and ground cover. Here we present the results of tests carried out in the field.
Prospects for reforestation in the Far East by reclamation using innovative technologies
Authors: Krupskaya L T , Dergacheva I M , Golubev D A , Kolobanov K A 
Published: October 2020

Abstract
The article presents the results of long-term studies within the limits of closed mining enterprises impact in Priamurye and Primorye of the Far Eastern Federal District (FEFD), where the lands from the forest land fund have been withdrawn earlier for mineral development. As a result, tailing dumps containing highly sulfidized waste have a negative impact on ecosystems. The urgency of the topic is undoubted. In this regard, the aim of the study was to create technology for the forests reproduction on technologically contaminated and disturbed land using innovative achievements (bioremediation) to ensure their environmental and social security. Natural and mining systems formed by the activities of the closed mining enterprises of the Priamurye and Primorye regions were the object of the problem under study, they located in the basin of the Amur River of large biosphere value (Solnechny GOK (Mining and Processing Works), Khrustalnensky GOK. The necessity of effective solution of the mentioned problem was substantiated. It has been established that the level of technogenic pollution of environment objects exceeds in dozens and even hundreds of times the regional background indicators and MPC. A reclamation method was created using the potential of biological systems. The novelty of the proposed methods is confirmed by Pavtent.
Phosphonic acid as a component of low flammability particle boards
Authors: Leonovich A A , Gedjo V M , Svirido E A 
Published: October 2020

Abstract
The possibility of using dibasic hydroxyethylidene diphosphonic acid to reduce the flammability of particle boards has been considered. A formulation was compiled with the addition of amino alcohols, surfactants and other auxiliary compounds, conventionally called the fire retardant Palonot. Wood substrate (veneer) was impregnated with various amounts of Palonot, and the development of combustion during ignition and subsequent attenuation with a regular increase in heat loss to the environment was studied. The results were compared with amidophosphate, which has found industrial use in fire protection of wood-based materials. The manufactured three-layer boards withstood the test in the “fire tube” and met the main requirements of the current standards for general-purpose boards. The thermomechanical curves and the details of the process of adhesion of the binder to the substrate containing the flame retardant are provided. The conditions for the manufacture of wood-based materials with the patented Palonot have been analyzed.
Testing of machines selecting mathematical model for a forest plantation operating
Authors: Markov O , Voronov R , Sysoev M 
Published: October 2020

Abstract
Forest plantations have been successfully established and operated in many countries since the middle of the last century. At the same time, in the Russian Federation (RF), where forest plantations are not widespread, timber processing enterprises are beginning to feel a raw material hunger due to the gradual exhaustion of available operational Mature forests. As a result, the average distance of harvested wood removal from natural forests is constantly growing, and the cost of logging roads increases every year. One of the problems that hindering the creation of forest plantations is the lack of a scientifically based system of machines in the Russian Federation that can perform the entire cycle of work: starting with planting (sowing) woody plants and ending with the collection of wood crops and preparing the territory for a new succession. This article describes a refined mathematical model of the modular principle of machines selection that intended for the full cycle of forest plantation operation. During testing, the optimal value was found that meets all the specified requirements. During testing was found out that finding the optimal solution by the chosen method requires a large amount of time.
Research of the trunk lower part form of the tree-like willow in the north-taiga area and development of transition tables from the stump diameter to the diameter at breast height
Authors: Paramonov A A , Tretyakov S V , Koptev S V , Yaroslavtsev S V , Tsvetkov I V 
Published: October 2020

Abstract
The paper considers the results of studying the shape of the lower part of tree-like willow trunks in the north-taiga area of the Arkhangelsk region. As a result of the studies, the diameters of willow trees at the 1.3 m height were calculated depending on the stump-level diameter at various heights from 0 to 1.3 m. This work aims at the development of two versions of tables for receiving trunk diameter at the 1.3 m height basing on stump diameter. Standards development for the transition from the stump diameter (at heights from 0 to 100 cm) to the diameter at the 1.3 m height is essential since the height and diameter at 1.3 m are the input parameters to the tables for determining trunk volumes. A need to determine the volume of felled trees` trunks arises while performing various kinds of examinations, and need to determine the stock of stands arises when addressing issues related to the evaluation of illegal logging. Various input and output data options allow more flexible use of patterns established during research and more rational use of tables in practice. Processing of field materials was carried out by methods generally accepted in forest evaluation practice.
Application of remote sensing analysis of the surface temperature for management and evaluation the state of environment in Pushkin town, Saint-Petersburg city, Russia
Authors: Quyet P T , Lyubimoff A V , Cuong N H , Vu L K 
Published: October 2020

Abstract
GIS and Remote sensing are now being used in many fields, especially in the field of agriculture and the environment. The results of the paper have built the land surface heat map of Pushkin district with detailed heat scales, which is the optimal way to solve more specifically the changes in heat and its effects. move on ecosystems that other common tools can’t solve.
Research of strength of gluing of wood
Authors: Rusakov D , Sokolova E , Varankina G , Chubinsky A 
Published: October 2020

Abstract
Wood is widely used in industrial and civil engineering. It has many valuable physical, mechanical and other operational properties that make it widely possible to use it not only in construction, but also in other sectors of the economy. Many scientists studied the problems of studying the processes of mechanical processing of wood and the development of rational technological conditions and modes of gluing wood, allowing to obtain products with the required physical and mechanical properties. One of the ways to increase the efficiency of production of glued building materials from wood is gluing lumber along the length of the toothed spike. The strength of glued beams during operation depends on many factors, including the quality of the formation of adhesive joints. The main ones are the properties of wood, mainly density and humidity, and the type of glue. The surface relief, the type of surfaces to be glued, the dimensions and the shape of the ten on also have an effect. The results of a study of the bonding strength of wood in glued beams and the strength of finger jointing are presented in this article.
Concept of a hybrid contextual model for designing environmental objects
Authors: Ishmukhametova K V , Kudasheva D R , Baymuratova S H , Tuktarova A N 
Published: October 2020

Abstract
This article is devoted to the hybrid model as a new paradigm for contextual design of an environmental object that has dualistic features within its genius loci. Features of the concept of contextual hybrid are revealed in the article on the basis of experimental design material devoted to problematic environmental objects of cities with unclear differentiation of contextual aspects. The strategy of building a hybrid contextual design model is described in the article on the example of the territory of “Cherkalikhina Gora” in Ufa. The authors introduce the concept of “urban memory” as an ideological platform for the project model of the territory. Dualistic features of contextual aspects of the environment through the rod of urban memory are impaled on the physical platform of a contextual hybrid model such as “nature”, thereby assembling a single hybrid contextual model of environmental object design.
Communication organization issues through the design of visual space in a digital environment
Authors: Khabibova A S , Khizhnyak E A 
Published: October 2020

Abstract
The article reveals the main types of visualization to support complex activities, specifies the forms of using methods of information visualization by means of computer technologies. The main principles of teaching communicative design are described, with account for modern visualization technologies and technologies for exhibiting design-engineering products in the digital space. The article reveals various aspects of the design teaching methodology, focused on the comprehensive use of visualization tools in the learning process. Practical recommendations are given that allow you to build a training program taking into account a wide range of new digital media technologies.