bluuebunny/crossref_metadata_2025 huggingface dataset:
POST-HARVEST IMPACT OF PACKAGING MATERIAL AND STORAGE DURATION ON CUT Narcissus tazetta
Authors: Shafique Muhammad Umair , Younis Adnan , Asif Muhammad , Akram Ahsan , Naseem Tahira , Tariq Usman , Ahsan Muhammad , Khan Nasir Ahmad , Nadeem Muhammad
Published: August 2021

Narcissus, belonging to Amaryllidaceae family, is one of the emerging cut flower in ornamental industry. Appropriate cut flower packaging for ideal time period provides potential benefit of improving their post-harvest quality of flower. Current research was conducted with an objective to find out best suitable packaging materials and optimum storage duration for cut flowers of narcissus. Narcissus postharvest features were analyzed statistically and results showed significant difference among the treatments with respect to packaging material as well as storage duration. In our findings, polyethylene sleeve showed best results in most of postharvest parameters (vase life, total life, dry weight, and change in fresh weight). In our results, 2 hours duration of storage significantly improved the post-harvest parameters of cut Narcissus. Vase life, fresh and dry weight of flower obtained maximum value in two hours storage duration. It was interesting to note that as storage duration increased, post-harvest characters reduced. In conclusion, postharvest quality of cut Narcissus can be improved significantly by using suitable packaging material and optimizing storage duration.
CHEMICAL COMPOSITION AND BIOLOGICAL ACTIVITY OF THE ESSENTIAL OIL OF WILD-GROWING Micromeria thymifolia (Scop.) Fritsch
Authors: Marin Marija , Branković Snežana
Published: August 2021

Essential oil (ЕО) from the leaves of wild-growing Micromeria thymifolia (Scop.) Fritsch (Lamiaceae) was screened for its chemical composition as well as its possible antioxidant and antibacterial properties. According to the gas chromatography – flame ionization detector (GC-FID) and gas chromatography – mass spectrometry (GC-MS) analyses, twenty-six compounds were identified, representing approximately 99.0% of the chromatographic area. The major component present in the essential oil was pulegone (44.8%), other main constituents were piperitone oxide (14.5%), iso-menthone (9.3%) and limonene (8.0%). The oil was tested for the antioxidant activity in 2,2-diphenyl-1-picryl hydrazyl (DPPH) assay and showed a dose-dependent free radical scavenging activity with EC50 value of 6.71 × 104 μg/ml. The antibacterial effect of the essential oil was tested against Gram-negative and Gram-positive bacteria. The essential oil of M. thymifolia showed antioxidant potential and antibacterial activity.
FOLIAR APPLICATION OF POTASSIUM AND ZINC ENHANCES THE PRODUCTIVITY AND VOLATILE OIL CONTENT OF DAMASK ROSE (Rosa damascena Miller var. trigintipetala Dieck)
Authors: Ali Esmat F. , Hassan Fahmy , Abdel-Rahman Sayed S.A. , Siddique Kadambot H.M.
Published: August 2021

Potassium (K) levels are decreasing worldwide in agricultural soils, and K deficiency is becoming a major issue. Study on damask rose response to K application is scarce. Furthermore, despite its importance in the cell division, photosynthesis and protein synthesis, there is a lack of published reports on plant responses to zinc (Zn) application. Further research is required to understand the damask rose's response to both elements. This study investigated the effects of K and Zn foliar application on the vegetative growth, flower yield, and volatile oil content and composition of damask rose. K and Zn nutrition was applied either individually or combined as K2SO4 and ZnSO4 at 0.5 or 1.0%. Foliar application of K2SO4 and ZnSO4 was applied with a manual pump four times in each growing season, the first at the beginning of stem elongation and leaf formation, and then at two-weekly intervals. Results showed that K and/or Zn treatments significantly improved the growth characters, flower yield, relative water content (RWC), stomatal conductance, and essential oil content and composition such as linalool, nerol, citronellol, geraniol, and nonadecane. The chlorophyll content, total soluble sugars (TSS), and protein content also increased, but free amino acid content decreased, suggesting that the distribution of nitrogenous compounds (between amino acids and proteins) and their transformation were influenced by K and Zn supply. Individual applications of K or Zn increased the N, P, K, and Zn contents in damask rose leaves, relative to the control, which increased further with combined applications of K and Zn. Results suggest that foliar application of K and/or Zn could be part of the damask rose fertilization program to provide plants with the optimum level of nutrition for improving the quantity and quality of flowers and essential oil yields.
Analisis Effect Size Pengaruh Bahan Ajar IPA Bermuatan Literasi Sains Terhadap Hasil Belajar Siswa SMP/MTs
Authors: Agustin* Silvia , Asrizal Asrizal , Festiyed Festiyed
Published: August 2021

The 21st century is the century where science literacy into focus on science education or science. The results of the test PISA the year 2018 showed that the literacy skills of students in Indonesia are still low. The average scientific literacy of Indonesian students is 396 and still below the score specified by the OECD 489. Compared to other countries, Indonesia ranked no 9 from the bottom to the aspects of assessment science. The purpose of this study was to determine the magnitude of the influence of the teaching materials of integrated IPA learning outcomes and the improvement of scientific literacy of students in SMP/MTs. This study used the effect size analysis method that studied 20 articles. Based on the results of the research that has been done can be known as 1) the use of integrated science teaching materials with literacy has a significant effect on the aspects of the theme, especially on the theme of motion in everyday life with an effect size of 4,41 in the high category, 2) the use of integrated science teaching materials with literacy has a more effective effect on Grade VIII level aspects with an effect size of 1.80 high categories, and 3) integrated science teaching materials with literacy have a significant effect on aspects of learning outcomes, especially knowledge aspects with an effect size of 1.80 high categories
Desain Pembelajaran Virtual Laboratorium Berbasis Inkuiri Terbimbing untuk Meningkatkan Hasil Belajar dan Aktivitas Peserta Didik pada Materi Sistem Ekskresi Manusia
Authors: Ristina Ristina , Khairil Khairil , Artika Wiwit
Published: August 2021

Materi sistem ekskresi pada manusia merupakan salah satu materi yang dipandang susah bagi peserta didik SMP kelas 8, terutama sub topik proses filtrasi. Hal tersebut dapat mempengaruhi rendahnya hasil belajar dan aktivitas belajar peserta didik. Oleh karena itu, diperlukan media dan model pembelajaran yang tepat untuk menyelesaikan permasalahan tersebut. Penelitian ini bertujuan untuk mengetahui peningkatan hasil belajar dan keaktifan belajar peserta didik setelah penerapan desain pembelajaran virtual laboratorium berbasis inkuiri terbimbing pada materi sistem ekskresi manusia. Pengambilan data penelitian dilaksanakan pada bulan Mei 2019. Metode yang digunakan dalam penelitian ini adalah metode kuasi eksperimen dengan rancangan pretest-posttest non-eqiuvalent control group design. Sampel di dalam penelitian ini adalah 59 orang yang dipilih secara total sampling. Instrumen yang digunakan dalam penelitian ini meliputi lembar validasi kelayakan perangkat pembelajaran oleh tim ahli, soal pretest dan posttest, serta lembar observasi aktivitas belajar peserta didik. Teknik analisis data kelayakan instrumen dilakukan oleh tim ahli, hasil belajar peserta didik diukur dengan menggunakan uji N-gain dan aktivitas belajar peserta didik dengan menggunakan persentase frekuensi. Hasil analisis peningkatan hasil belajar peserta didik di SMP Methodist Banda Aceh adalah 49%, sedangkan di SMP Budi Dharma Banda Aceh  adalah 45%. Selanjutnya, hasil analisis terhadap aktivitas belajar peserta didik adalah 86,48%, sedangkan di SMP Budi Dharma Banda Aceh adalah 81,25%. Kesimpulan penelitian ini adalah pembelajaran melalui virtual laboratorium berbasis inkuiri terbimbing dapat meningkatan hasil belajar dan keaktifan belajar peserta didik.
Multimedia Interaktif Berbasis Game Edukasi sebagai Media Pembelajaran Materi Sistem Pernapasan di Kelas XI SMA
Authors: Panjaitan Ruqiah Ganda Putri , Titin Titin , Putri Neuwidia Nuzul
Published: August 2021

Sistem pernafasan merupakan salah satu materi yang dianggap sebagai materi yang sulit untuk dipahami karena organ penyusun dan proses pernafasannya tidak dapat dilihat secara langsung. Multimedia interaktif berperan dalam meningkatkan pemahaman dan berdampak postif terhadap hasil belajar siswa. Penelitian ini bertujuan untuk menghasilkan multimedia interaktif berbasis game edukasi yang valid digunakan sebagai media pembelajaran. Bentuk penelitian ini adalah research and development dengan model pengembangan ADDIE yang dimodifikasi. Tahap-tahap dalam penelitian ini yaitu analisis, desain, pengembangan, dan evaluasi. Untuk mengetahui validitasnya, media divalidasi oleh ahli media dan ahli materi dengan menggunakan instrumen berupa angket validasi kelayakan media. Aspek yang diukur untuk validitas media meliputi aspek umum, rekayasa lunak, komunikasi visual, dan komunikasi audio, sedangkan untuk validitas materi meliputi aspek pembelajaran dan materi. Hasil penelitian menunjukkan rata-rata skor validasi berturut-turut 3,67; 3,54; 3,47; dan 3,23 untuk aspek umum, rekayasa lunak, komunikasi visual, dan komunikasi audio. Adapun rata-rata skor validasi untuk aspek pembelajaran dan materi adalah 3,60 dan 3,66. Secara keseluruhan bahwa rata-rata validitas media dan validitas materi pada multimedia interaktif adalah 3,48 dan 3,63 yang termasuk pada kategori valid. Disimpulkan bahwa multimedia interaktif berbasis game edukasi ini layak digunakan sebagai media pembelajaran di kelas XI SMA pada materi sistem pernapasan.
Analisis Kompetensi TPACK pada Media Pembelajaran Guru Biologi SMA
Authors: Nevrita Nevrita , Asikin Nurul , Amelia Trisna
Published: August 2021

Abstrak. Tecnnology pedagogycal and content knowledge (TPACK) merupakan kompetensi abad 21 yang harus dikuasai oleh guru. Telah banyak penelitian yang dilakukan tentang TPACK namun menghubungkan TPACK dengan media pembelajaran masih terbatas. Penelitian ini bertujuan untuk menganalisis kompetensi TPACK pada media pembelajaran guru Biologi SMA. Penelitian dilaksanakan pada seluruh SMA negeri yang ada di Kota Tanjungpinang sebanyak 7 SMA Negeri dengan sampel sejumlah 22 guru biologi.  Prosedur penelitian diawali koordinasi awal dengan pihak sekolah dan kesepakatan jadwal penelitian, dilanjutkan dengan penyusunan instrumen dan pelaksanaan penelitian. Teknik pengumpulan data dengan menggunakan angket terbuka yang berisi sesuai dengan aspek TPACK terdiri atas Tecnologycal Knowledge dan Pedagogycal Content Knowledge. Hasil dari penelitian ini menunjukkan bahwa guru biologi sebagian besar telah memanfaatkan media dalam pembelajarannya dan juga memiliki kemampuan yang sederhana dalam mendesain media pembelajaran. Media pembelajaran yang dimanfaatkan dan didesain sebagian besar baru berupa powerpoint. Kompetensi TPACK untuk aspek TK berada pada kategori sangat baik, begitu juga untuk aspek  PCK guru biologi SMA kota Tanjungpinang berada pada kategori sangat baik. Kompetensi TPACK pada media pembelajaran guru biologi SMA kota Tanjungpinang baru sebatas memanfaatkan media pembelajaran berbasis teknologi yang sederhana dan mudah untuk digunakan serta mudah dalam pengembangan dan mendesain. Kata kunci: guru biologi SMA,  media pembelajaran, TK, PCK,  kompetensi TPACK Abstrack. Pedagogycal technology and content knowledge (TPACK) is  a 21st century competence that must be mastered by the teacher. There have many studies conducted on TPACK but connecting TPACK with learning media is still limited. This study aims to analyze TPACK competence at learning media Biology high school teachers in Tanjung Pinang City. It was conducted in 7 senior high schools in Tanjungpinang City with 22 biology teachers as a samples. Procedure started by coordination with the school and an agreement of tstudy schedule, followed by preparation of instrument and implementation of the study. This study used open questionnaires in accordance with aspects of TPACK such as Tecnologycal Knowledge and  Pedagogycal Content Knowledge. The results of this study indicate that most biology teachers have used the media in their learning and also have a simple ability to design instructional media. The learning media that are utilized and designed are mostly new in the form of powerpoints. TPACK of biology teachers is in the excellent category for TK,  as well as for PCK category Tanjungpinang city high school biology teacher is in the very good category. TPACK competence in the learning media of biology teachers in Tanjung Pinang City is only limited for utilizing simple technology-based learning media easy to use ,easy to develop and design.Keywords: High school biology teacher; Learning media; TK; PCK; TPACK competency
Implementasi Pembelajaran STEM pada Materi Sistem Reproduksi Tumbuhan dan Hewan Terhadap Kemampuan Berpikir Ilmiah Peserta Didik SMP
Authors: Agustina Rahmi , Huda Ismul , Nurmaliah Cut
Published: August 2021

Learning  science in Junior High School in Pidie district has not yet developed the ability to think scientifically. Leanears have not been able to do a problem analisis and argue with the evisidence and experience of the investigation. That are not given the opportunity to have learning activities that could improve their thinking, and then the equipment used in the process of teaching and learning on the concept of plants and animals reproduction are inediquate. It is proved by the laboratory space that has not been used and incompleted equipment. This study aims to determine the differences in the implementation of integrated STEM learning and STEM Silo on the ability to think scientifically on plant and animal reproduction concept in class IX Pidie State Junior High School. The approach used in this study was quantitative, the type of research was applied research; the method used is quasi-experimental, with the Nonrandomized control group pretest-posttest design. The population in this study amounted to 236 students and the sample to 75 students. The research procedure consisted of giving pretest, giving STEM integrated treatment in the experimental class and STEM silo in the control class, and giving posttest. The instrument for measuring scientific thinking ability is to use essay tests accompanied by rubrics. Data analysis consisted of normality test, independent t-test and ANOVA test. The results of the study showed there are diffences in the average value of scientific thinking integrated STEM class that is76.74 and STEM silos 61.64. The research is aimed at differing students ability to  scientific thinking. The students are taught by using integeted STEM learning and STEM silo in the reproduction of animal plant material grade IX SMP
Kelas Kita Based Blended Learning: Biology Learning Model to Improve Student Activities, Attitudes, and Achievements
Authors: Juanda Anda , Kartimi Kartimi , Indriani Dessy , Nasrudin Dindin
Published: August 2021

In the current era of technological development, the flow of information and knowledge is very quickly updated, so that facilities are needed to compensate, especially in the field of education. Conventional learning models can support interactions between teachers and students, but on the other hand, this model is less able to provide facilities in the form of access to information anytime and anywhere. These weaknesses can be overcome by online learning, so that a blended learning solution appears, which still considers the interaction of teachers and students and expands learning opportunities because it is not limited to time and place. This study aimed to determine the effectiveness of blended learning based on kelas kita network sites in improving student achievement, activities, and learning attitudes. The subjects of this study were two classes of MA students (experimental class of 33 students and control class of 34 students) in Cirebon, Indonesia. The biological material chosen in this study was environmental change. The study design used a Pretest-Posttest control group. Data collection techniques employed observation, tests, and questionnaires. From the results of the study, it provides information that the experimental class applied blended learning model had significantly different achievements, activities, and learning attitudes (sig 0.05) compared to the control class. Students had an enthusiastic attitude because they were given the opportunity to explore their potential in studying literature based on kelas kita network. The implication of this research is that a blended learning model can be developed and applied to other materials, even in other subjects.
Pengaruh Model Pembelajaran Problem Based Learning Terintegrasi High Order Thinking Skill terhadap Kemampuan Berpikir Kritis dan Sikap Percaya Diri
Authors: Rezkillah Inang Irma , Haryanto Haryanto
Published: August 2021

This study aims to identify: (1) the impact of high order thinking skill integrated problem based learning on critical thinking skill; (2) the impact of high order thinking skill integrated problem based learning on student self-esteem; (3) the influence of high order thinking skill integrated problem based learning has both the critical thinking skill and self-esteem together. This study is an experimental quasi study with a pretest-posttest control design. The populationsof this study were the wholestudents of Primary School Teacher Education in the 4th semester of Ahmad Dahlan University by the year 2020/2021. This research used a random sampling technique. The data were analyzed using independent t-test and MANOVA, and Hoteling’s Trace test.The results showed that (1) there was an influence of HOTS integrated PBL that there are critical thinking skills; (2) there is an influence of HOTS integrated PBL that there is the confidence of the students; (3) there is an influence of HOTS integrated PBL that there arecritical thinking skills and confidence together
Development of Critical Thinking Test Instruments with Problem Solving Context on The Salt Hydrolysis Material
Authors: Susetyo Budi , Siswaningsih* Wiwi , Oktavi Fizky Rizki
Published: August 2021

The assessment tools must be developed to measure the competencies in 21st century skills, such as critical thinking and problem-solving. Critical thinking is seen as a prerequisite for problem-solving abilities. Therefore, this study aims to produce critical thinking test with problem-solving context on the salt hydrolysis material, also measure students’ mastery of the critical thinkings sub-indicators and problem-solving indicators. The research method used the development and validation. Participants involved in the test were 42 students of class XI who had studied salt hydrolysis at a high school in Bandung. The product from this research is critical thinking skills test instrument in the context of problem-solving as many as 10 multiple choice with an open reason on the salt hydrolysis material. Based on results of test quality, the developed test has good and decent criteria. The instruments declared valid based on the content validity at the CVR value and the empirical validity on Pearson's product-moment correlation coefficient, and reliable with Cronbach Alpha value of 0.823. Criteria for empirical validity and reliability test as a whole are included in high and very high. The results analysis quality of the items as a whole have medium difficulty level, very good distinguishing power, and good distractor effectiveness. The results of level student mastery in the critical thinkings sub-indicators and problem-solving indicators that are most mastered are to express problems and mention facts related to the problems. Meanwhile, the least mastered are drawing conclusions according to facts and checking the feasibility of the solutions made.
Analisa Pemanfaatan E-Learning Menggunakan Data Statistik Pengguna Aplikasi Startup Pendidikan Selama Wabah Pandemi Covid-19
Authors: Roza Liszulfah , Aulia Nurul , Zulherman* Zulherman
Published: August 2021

The changes that happened during the epidemic due to the Central Government's and the Ministry of Education and Culture's (Kemendikbud) closure of schools had a considerable impact on the learning models and methods followed by all Indonesian students. As a result, this policy implements a digital education or e-learning system implemented during the Covid-19 outbreak, requiring students to use the internet to supplement their home education. However, the public is not well informed about the use of free learning support applications. As a result, information from online learning applications and digital education is required, as these are used as educational support tools for all students. The purpose of this study is to examine how digital learning systems, or e-learning, are used by examining the statistical data of users of a widely used educational startup application. The Teacher Room, Zenius, and Quipper applications will be examined. The research method compares three educational applications used in Indonesia that rely on secondary data from www.similiarweb.com to ascertain the number of website visits and ranking. These findings contribute to the body of knowledge regarding digital learning systems during the Covid-19 outbreak
Penerapan Model Introduction Connection Application Reflection Extention (ICARE) Dipadu Modul Pembelajaran Berbasis Konstruktivisme Untuk Meningkatkan Keterampilan Berpikir Kritis Dan Hasil Belajar Peserta Didik
Authors: Utami Liza , Rahmatan* Hafnati , Hasanuddin Hasanuddin , Nurmaliah Cut , Khairil Khairil
Published: August 2021

Critical thinking skill plays an important role in achieving maximum learning outcomes. The lack of involvement in critical thinking skills activities impacts students’ learning outcomes. This study aims to analyze whether the ICARE learning model application combined with constructivism-based learning modules can improve students' critical thinking skills and learning outcomes. The research method is an experiment with a pretest-posttest control group design. This study was conducted in MAN 4 Aceh Selatan and MAS Ashhabul Yamin Aceh Selatan during the even semester (2020/2021 Academic Year) with the population of 196 students of science class XI. The research sample was 119 students, namely the experimental group 58 and the control group 60. The parameters measured are critical thinking skills and learning outcomes. Data on critical thinking skills and learning outcomes were analyzed by parametric statistics using an independent sample t test, while to observe the correlation of critical thinking skills with learning outcomes was conducted through correlation and regression analysis. The results showed that there was an increase in critical thinking skills and student learning outcomes after being taught using the application of the ICARE learning model combined with constructivism-based learning modules on the respiratory system material. The correlation coefficient obtained is 0.832 which indicates there is a positive relationship between critical thinking skills and learning outcomes with strong interpretations. The conclusion of this study is that the application of the ICARE learning model combined with constructivism-based learning modules can improve students’ critical thinking skills and learning outcomes on respiratory system material. Keywords: ICARE, Constructivism, Critical Thinking Skill, Learning Outcomes.
Implementasi LKPD Berbasis STEM untuk Meningkatkan Keterampilan Berpikir Kritis Peserta Didik
Authors: Fithri Safiratul , Tenri Pada* Andi Ulfa , Artika Wiwit , Nurmaliah Cut , Hasanuddin Hasanuddin
Published: August 2021

The learning process only focuses on the material by memorizing concepts, students have not utilized worksheets to do practical work optimally, so the biology learning process in schools does not encourage students to practice critical thinking skills. This study aimed to determine the effect of implementing STEM-based student worksheets in improving students' critical thinking skills at SMP Negeri 1 Peusangan, Bireuen Regency. This study used a pretest-posttest control group design. The study population was 88 VIII grade students of SMP Negeri 1 Peusangan. The research sample consisted of 67 students. The sample is determined through the purposive sampling technique. The researcher determines the class of the research sample using purposive sampling. The taking of the experimental class and the control class is determined by looking at the standard deviation of the results of the homogeneous pretest of students (the ability of homogeneous students). Critical thinking skills are measured by multiple-choice questions with reason. It is used to determine the increase and difference in the critical thinking skills of students. Analysis of N-Gain test data, paired sample t-test, and independent sample t-test. The results showed that the implementation of STEM-based LKPD could improve students' critical thinking skills on excretory system material in class VIII of SMP Negeri 1 Peusangan. In addition, there are differences in the KBK of students between the experimental class and the control class on the excretory system concept in class VIII of SMP Negeri 1 Peusangan.
Dynamics of the culture of wealth in the context of economic globalization
Authors: Zarubina N. N.
Published: August 2021

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Forty years after the 1967 "six-day" war in the Middle East: the results of the Israeli occupation and settlement policy
Authors: Krylov A. V.
Published: August 2021

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Soviet leadership: the problem of borders and spheres of influence of the USSR in 1941-1946
Authors: Narinsky M. M.
Published: August 2021

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Military doctrines of the CSTO member states
Authors: Babadjanov A. Ya.
Published: August 2021

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World without Russia. "White" representation at the Paris Peace Conference
Authors: Listikov S. V.
Published: August 2021

11 ноября 1918 г. победой антигерманской коалиции завершилась Первая мировая война. Но среди победителей не оказалось вынесшей в 1914 - 1917 гг. тяжелые испытания и пролившей море крови ради торжества общесоюзнического дела России. Она встретила окончание войны, подготовку и проведение конференции по подведению ее итогов в кровавом хаосе Гражданской войны. Страна оказалась разорванной на несколько частей. Центральную контролировали большевики, умело отбивавшие атаки многочисленных внешних и внутренних врагов, за год пребывания у власти доказавших свою состоятельность. На окраинных территориях бывшей Российской империи возникли de facto правительства, от лица проживавших там народов добивавшихся независимости от центра и уповавших на поддержку этих требований правительствами Великих держав.
Finland in the war against the USSR, 1941-1944
Authors: Kulkov E. N.
Published: August 2021

22 июня 1941 г. Германия напала на Советский Союз. В речи по радио Гитлер заявил, что немецкие войска «в союзе со своими финскими товарищами» ведут борьбу на берегах Северного Ледовитого океана1. Финский президент Р. Рюти поспешил опровергнуть это заявление. Он заверил представителей зарубежной печати в том, что «только нападение извне может заставить Финляндию отказаться от нейтралитета»2 . Оба эти заявления не отражали истинного положения дел. Находившиеся в тот день на севере у берегов океана немецкие и финские войска еще только развертывались для перехода в наступление. Что касается финского руководства, то оно заявлением о нейтралитете пыталось замаскировать находившуюся на завершающей стадии подготовку Финляндии к вступлению в войну с СССР.
Sociocultural Attitudes towards the Money as a Premise of the World Financial Crisis
Authors: Zarubina N. N.
Published: August 2021

В статье рассматриваются социокультурные установки современного общества в отношении денег в качестве предпосылок глобального финансового кризиса. Мифология денег как система непротиворечивых представлений массового сознания формируют установки на монетарный универсализм, утверждающий деньги в качестве базовой ценности и метаязыка современной культуры. Развитие глобальной финансовой экономики способствует отрыву финансовой сферы от реального хозяйства и порождает установки на безответственность в накоплении и инвестировании.
The international competitiveness of the American economy
Authors: Zagrebelnaya N. S.
Published: August 2021

В данной статье проведен анализ международной конкурентоспособности американской экономики путем оценки Индекса глобальной конкурентоспособности и Индекса конкурентоспособности бизнеса Всемирного экономического форума, рейтинга швейцарской бизнес-школы Институт развития менеджмента, изучения Американской инициативы по конкурентоспособности.
Constitutional basis of Austria’s accession to the European Union
Authors: Vodyanitskaya E. A.
Published: August 2021

On 1 January 1995 Austria became a member of the European Union. Austria’s accession to the EU constituted the most important transfer of jurisdiction in the history of the Federal Constitution. On this occasion the Austrian legislature passed an amendment to the Federal Constitution which provides for the participation of Austrian organs in the decision-making process of the European Union. The legal basis of Austria’s membership in the EU is the treaty on accession to the European Union and the special constitutional bill authorizing the competent authorities to ratify the treaty on accession. First of all, provisions on the election of Austrian members to the European Parliament were introduced by the amendment into the Constitution. Secondly, the amendment contains a procedure for participation of the Austrian lands and local governments in the decisions of the European Union. Thirdly, the legislative bodies on the central government level (National Council and Federal Council) are also accorded the right to participate in decision-making of the EU. Finally, a special provision confirming Austria’s participation in the Common Foreign and Security Policy of the Union was introduced.
Comparative tectonics of the White Sea paleorift system and other continental rifting systems
Authors: Baluev A. S. , Kolodyazhny S. Yu. , Terekhov E. N.
Published: August 2021

Research subject. The Riphean paleorift system of the White Sea, most of which is overlain by the waters of the White and Barents Seas and the platform cover of the East European Platform. This allowed numerous researchers to classify it as an aulacogen. The system was revealed by geophysical methods in the relief of the crystalline basement of the platform in the form of a frame of deep extended trenches of northwestern strike, subparallel to the edge of the East European platform.

Materials and methods. Personal observations of the authors within the Onega-Kandalakcha paleorift, Baikal rift zone; a detailed study of seismostratigraphic sections of these zones; extensive literature data on the structure of modern rift zones. A comparative analysis of the structure of the most studied and currently active Baikal and East African rift systems, as well as the Karoo rift system of the Late Paleozoic origin with the paleorift system of the White Sea.

Results. The following types of structural parageneses, which are characteristic of both modern rift systems and ancient paleorift systems, were identified. 1. Genetic relationship (inheritance?) of riftogenic structures with more ancient basement structures. 2. Structural paragenesis of concentric complexes in rift propagation zones. 3. Comparability of the area of horizontal extension of the lithosphere of the White Sea paleorift system with extension zones of modern continental rifts. 4. The fundamental similarity of the structure: the complex of paleorifts of the White Sea with modern continental rift systems: the presence of long deep trough segmentation of grabens and semi-grabens separated by bridges, which were accommodation zones with polarity reversal along the strike of the rift zone, displacement of the rift relative to the mantle ledge, the existence of a gently dipping normal fault (detachment), etc.

Conclusion. The riftogenic nature of the aulacogens in the northeastern segment of the East European Platform has been confirmed.
Density contrast, deep structure, rheology and metallogeny of the crust and upper mantle of the Verkhoyano-Kolymsky region
Authors: Petrishchevsky A. M. , Yushmanov Yu. P.
Published: August 2021

Research subject. The Verkhoyano-Kolymsky areal of ore mineralization in the Far East of Russia.

Data and methods. We used the state metallogenic map of Russia, Sc. 1: 2 500 000 (2000) and the gravity map of Russia Sc. 1: 2 500 000 (2001). Modeling was conducted by studying the deep structure of the earth’s crust and upper mantle from the anomalies of the density contrast of geological media in the intervals between the centers of density inhomogeneities and the surfaces of equivalent spheres.

Results. 3D-distributions of density contrast (µz-parameter) in the crust and upper mantle of the Verkhoyano-Kolymsky region related to the rheological properties of geological media were analyzed. In the gravity models designed without attraction of external information, the structures of thrust, splitting, stretching, as well as the structures of central type (CTS) of the plume nature, were identified. In the regional stretching zone, at the border of lithospheric segments, the revealed Indigiro-Kolymsky and Verkhoyansk CTSs were described in 3D space. These structures are characterized by a mushroom-like upwelling of the asthenosphere, associated with heat flow anomalies. The identified structures differ in terms of asthenosphere depth, age and ore mineralization. The location of ore clusters and regions in the zones of CTS obeys concentric ore-magmatic zoning, typical for this type of structures. The central (trunk-like) zone of Indigiro-Kolymsky CTS features mainly high-temperature gold-quarts mineralization. On the periphery, along with gold areas, there are tin-tungsten, tin and complex ore mineralization areas. The majority of gold fields with low-temperature gold-sulfide, tin and polymetallic mineralization are attributed to the flanks of Indigiro-Kolymsky CTS. In the Verkhoyanska CTS, the majority of ore regions are characterized by multi-formation ore mineralization. In the central part of this structure, areas with mainly low-temperature tin, mercury-antimony and gold-silver ore mineralization are located. On the flanks, gold mineralization is either absent or subsidiary.

Conclusions. As a result of a simple procedure, implying generalization of multiple decisions of the elementary inverse problem of gravity potential, main features of the deep structure of the Verkhyano-Kolima region were defined. In the regional stretch zone, at the boundary of lithospheric segments, the Indigiro-Kolimskaya and Verkhoyanskaya CTSs of the plume nature that control the location of ore deposits were identified and described in 3D space.
Olivine as an indicator of polygenic assemblage of inclusions from Late Cenozoic volcanic rocks in the Tunka Valley, Baikal Rift Zone
Authors: Ailow Y. , Rasskazov S. V. , Chuvashova I. S. , Yasnygina T. A.
Published: August 2021

Research subject. Olivine of deep-seated inclusions from Late Cenozoic volcanic rocks of the Tunka valley.

Materials and methods. Electron probe microanalysis of minerals with determination of calcium in olivine by laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). A complex of methods of quantitative chemical analysis for determination of major oxides in rocks.

Results. Deep-seated nodules from Late Cenozoic volcanic rocks in the Tunka Valley characterize the root part of the Slyudyanka metamorphic subterrane, formed during collisional accretion of the Khamar-Daban terrane to the Siberian paleocontinent in the Early Paleozoic and reactivated in the Late Cenozoic. From bulk compositions of deep-seated nodules, groups of xenoliths (restites, rocks closed to the primitive mantle composition, and metasomatites) and cognate rocks (magmatic and magmatic-metasomatic genesis) were distinguished. The polygenetic character of this assemblage is designated by variations of major and trace-element abundances in olivine. In olivine of xenoliths, forsterite (Fo) ranges from 86 to 91% under abundances of NiO – 0.2–0.5, MnO – 0.1–0.2, and CaO < 0.16 wt %. In olivine of magmatic rocks and those of mixed (magmatic-metasomatic) genesis, Fo decreases to 64% with a decrease in NiO (Ni/Mg ratio) and an increase in MnO and CaO. Magmatic olivine shows 0.16–0.21 wt % MnO and about 0.1 wt % CaO, in contrast to olivine of magmatic-metasomatic genesis, enriched in these oxides to 0.5 wt % and 0.45 wt %, respectively, with an increase in the Mn/Fe and Ca/Fe ratios. Olivine trends of the shallow polygenetic assemblage of inclusions are emphasized when compared with those of the deeper ones from volcanic rocks of the Vitim and Oka plateaus that represent a transition from the garnet to the spinel-pyroxene facies in mantle peridotites.

Conclusion. Olivine compositions are indicative of the shallow origin of peridotite and pyroxenite nodules from the crust and crust–mantle transition in the root part of the Slyudyanka collision zone reactivated in the Late Cenozoic.
Palladium tellurides and bismuthtellurides in sulfide copper-nickel ores of the Savabeisky ore occurrence (Nenets Autonomous District, Russsia)
Authors: Shaybekov R. I. , Makeev B. A. , Kononkova N. N. , Isaenko S. I. , Tropnikov E. M.
Published: August 2021

Research subject. The Savabeisky sulfide copper-nickel ore occurrence, located in the central part of the Khengur (Central Pay-Khoy) gabbro-dolerite complex of the Pay-Khoy, within the Yugorsky Peninsula, located in the Far North-East of the European part of Russia, in the Arkhangelsk region, between the Barents and Kara Seas.

Materials and methods. Samples of copper-nickel ores with noble metal mineralization were studied. Palladium tellurides and bismuthtellurides were characterized using optical and scanning electron microscopy, electron backscatter diffraction (EBSD), X-ray structural analysis and Raman spectroscopy.

Results. Bismuthtellurides in the Paykhoysko-Vaigach-Yuzhnonovozemelskiy region – michenerite, merenskyite and unidentified palladium telluride of the kotulskite–merenskyite series with crystal formula Pd2(TeSbBi)3 – were found for the first time. The unit cell parameter of Pay-Khoy michenerite was calculated using X-ray diffraction analysis data: a = 6.638(2) Å. According to Raman spectroscopy, the palladium tellurides and bismuthtellurides of the Savabeisky ore occurrence were distinguished into 4 groups: Sb-kotulskite (does not contain Raman-active modes), unnamed PGM Pd2(TeSbBi)3 (bands in the range 95–103, 121–126 cm–1, obtained for the first time), Sb-merenskyite (band 126–135 cm–1), michenerite (bands with maxima 100 and 116 cm–1, obtained for the first time). The Kikuchi lines for michenerite and the mineral of the kotulskite–merenskyite series were obtained by the EBSD method.

Conclusions. The diagnosis of palladium tellurides and bismuthtellurides is a rather complicated problem (wide variations in compositions, low hardness, small size, thin intergrowths of several individuals, the presence of impurities, etc.) affecting the determination of their mineral form and requiring an integrated approach. The Raman spectra of michenerite and unnamed PGM can be used as standards for the rapid identification of their natural forms, in contrast to EBSD, which requires improved sample preparation. The relatively high content of antimony in the ore minerals and noble metals minerals at the Savabeisky ore occurrence is the antimony metallogenic specificity characteristic of the entire Uralsko-Novozemelskiy province.
Expressive potential of prosody in the inaugural rhetoric (on the material of 2021 Joe Biden speech)
Authors: Anikyan Tamara
Published: August 2021

The subject of this research is the expressive potential of prosody in the 2021 inaugural speech of Joe Biden. Analysis is conducted on the peculiarities of functionality of such prosodic means as melody, accentuation, pausation, rhythm and other. Assessment is given to their interaction with the widespread stylistic techniques, as well as their role in carrying out the traditional functions for inaugural rhetoric that determine its genre distinctness. The article employs the method of auditory scene analysis of speech of the political, which vividly illustrates the significance of modifications of suprasegmental parameters for conveying the communicative intent of the speech. The scientific novelty lies in studying the expressive capabilities of prosodic means within a specific variety of political discourse – the inaugural speech as a genre of epideictic rhetoric, viewing the implementation of specific functions in the unity of linguistic and extralinguistic factors. Attention is given to the general peculiarities of discursive practice of the inaugural speeches, as well as the context of a specific communicative situation – unprecedented circumstances of delivering speech by the the 46th President of the United States, as well as the personal traits of the speaker. The acquired results demonstrate the expressive potential of prosodic modifications in the oral speech, which can be used in teaching students majoring in philology the principles of text analysis of the political discourse through the prism of prosody, expressive syntax, stylistics, and rhetoric.
CONTROLLER DESIGN FOR DC MOTOR
Authors:   Technica lUniversity of Kosice, Miková Lubica
Published: August 2021

Urgency of the research. DCmotorsare very important andtherefore greatattention is paidto theirdevelopment and production. DCmotorsareusedwherever a wide rangeof speedcontrol is required,orwherestartingconditions aredifficult.They are characterized by simple speed controllability andreliability.Target setting. The article dealswith the analysisof a DCmotorwith a focusonspeedcontrolusingthe design of a PI controller. Matlab/Simulinksoftware is usedforsimulation.Actual scientific researches and issues analysis. The PI controller is themostcommoncombinedcontrollerbecauseit has an almostuniversaluse. In a closedloopcontrolsystem, it eliminates permanentcontroldeviation andimprovesstability.At the beginning of thecontrol, theinfluenceof theproportional termprevails,with increasing time theinfluenceof the inte-grationtermprevails.Uninvestigated parts of general matters defining.Another taskwillbe to verify theproposedPI controllerona realmotor.The research objective. The main aimwasto create controlof a DCmotorusing a PI controller. Theproposedcontrolsystemregulates themotor speedwithzerocontroldeviation.The statement of basic materials. It is a typeof electric motorpowered by directcurrent. The main advantagesincludeversatility andsimplicity.Conclusions. The aimof the articlewasto create a mathematicalmodel,which is the mainbuildingblockforsimulationsin a computerenvironment. Basedon the available parameters of the selected DCmotor, this mathematicalmodel and its functionalityweresimulated.Subsequently, the PI controller is designed and its simulationwith different loadcharacteristics.
FIELD-BASED ENGNEERNG GEOLOGCAL INVESTIGATION FOR THE CONSTRUCTION OF TEN-STORY RESIDENTIAL BUILDINGS ON NEZAVISIMOSTI STREET IN CHERNIHIV
Authors:   Chernihiv Polytechnic National University, Ivanyshyn Volodymyr , Buhay Viktor ,   Ltd. «Chernihivbudrozviduvannya», Korzachenko Mykola ,   Chernihiv Polytechnic National University
Published: August 2021

Urgency of the research. The building construction should not begin without engineering geologicalinvestigation (research) on the areas, allocated for the construction of buildings and structures. In this regard, such researches are always relevant.Target setting.Almost the whole territory of Chernihiv and Chernihiv region is covered with the quaternary sediments, which have different thicknesses and lithological composition, and it is considered a negative factor in the construction of various construction projects. Because of that, each construction site (area) needs to study its geological and hydrogeological conditions in details.Actual scientific researches and issues analysis.Recent open access publications have been reviewed.Uninvestigated parts of general matters defining. Picture of distribution, thickness and lithology of Quaternary sediments is a general complex insufficiently solved problem for Chernihiv region.The research objective.Study of the geological structure and the hydrogeological conditions in the area for the construc-tion of three ten-story residential buildings on Nezalezhnosti Street in Chernihiv.The statement of basic materials. According to the geomorphology, the studied area is located on the Chernihiv-Go-rodnyansky Moraine-outwash plain coast near the water-divide part of the Stryzhen and the Belous rivers. According to tec-tonic zoning, it belongs to the axial zone of the north-western part of the Dnieper-Donetsk depression. In the geological sec-tions, based on the results of processing materials in drilling and cone penetrometer test, 11 engineering and geological elements (EGE) were identified. The geologic cross-sectio n up to a depth of 20 m is composed of modern technological, upper-and middle-quaternary sediments. The hydrogeological conditions of the area are determined by the ground water of a non-pressure type that is located at a depth of 3-3.5 m in general; moreover, the area belongs to Category II in terms of the complexity of engineering and geological conditions. Conclusions. Based on the surveys performed, it was found that the soil thickness on the area is heterogeneous, that is confirmed by the allocation of 11 engineering and geological elements in it. EGE 2,3-6 soils are subsidence under additional loads. The ground water is non-aggressive to all grades of concrete, cement, and reinforced concrete structures.