bluuebunny/crossref_metadata_2025 huggingface dataset:
Tutela degli spazi utilizzati dagli ets per lo svolgimento di attività di interesse generale: un caso pratico.
Authors: Francini Angelo
Published: July 2023

Il commento intende analizzare la portata dell’applicazione del primo comma dell’art. 71 del Codice del Terzo Settore, sotto il profilo sia soggettivo che oggettivo, e delineare le opportunità che ne possono derivare anche per le Associazioni Sportive Dilettantistiche, a condizione che acquisiscano la qualifica di Ente del Terzo Settore. Infatti, la norma si inserisce nell’ambito delle misure pubblicistiche di promozione e sostegno degli Enti del Terzo Settore adottate in ragione proprio delle attività di interesse generale perseguite da questi. La nota del Ministero del Lavoro e delle Politiche Sociali, nel rispondere su un caso concreto, affronta il tema del bilanciamento tra le diverse esigenze tutelate dal legislatore.
Analisis Expected Return Dan Risiko Portofolio Sebelum Dan Pada Saat Pandemi Covid-19 Pada Saham LQ-45
Authors: Hariyanto Wiwit , Izza Noor A Fityan , Biduri Sarwenda
Published: July 2023

This study aims to determine whether there are differences in the Expected Return and Risk of the LQ-45 Stock Portfolio before and during the COVID-19 pandemic. This type of research is quantitative research. The object of this research is LQ-45 stock in 2019-2020 or during and before the COVID-19 pandemic. The conclusion in this study is that the portfolio in this study uses the Markowitz Portfolio model which forms a combination into 21 combinations in the 2019-2020 time interval. From the results of the combination, it was found that the Expected Return and Portfolio Risk levels in the composition of 50:50 and 70:30 experienced differences before and during the COVID-19 pandemic.
Pengaruh Perceived Trustworthiness Of EWOM, Percieved Value Dan Customer Engagement Terhadap Purchase Intention
Authors: Pambudi Bambang Setiyo , Hartini Sri , Kusumasondjaja Sony
Published: July 2023

Consumer attitudes towards eWOM on social media are the main information source in determining consumer attitudes. The increasing amount of information on social media makes it difficult for consumers to find trust in eWOM, especially in health products. A higher level of trust is needed for health products (Shah et al., 2019). This research is a development of Mehrabian, Russell's S-O-R (Stimulus, Organims, Response) Theory in 1974. The model shows that the form of response is a back reaction from individuals when receiving stimuli. The focus of the research is a causal influence in the eWOM model to build trust, increase the benefits and value of a product, and establish consumer involvement so that there is a change in behavior attitude on purchase intention. There are three elements in the S-O-R communication model: 1. Stimulus consists of Perceived Trustworthiness of eWOM and Perceived Value 2. Organizations, namely Customer engagement, and 3. Response, namely Purchase intention. The research was conducted on social media users Facebook or Instagram Tik Tok. Sample with purposive sampling, characteristics.
Analisis Efektivitas Promosi Perguruan Tinggi Dengan Penerapan Model AISAS
Authors: Satrio Danang , Adriyana Rika
Published: July 2023

ABSTRACT Technological advances today, especially the internet of things, are widely used by people in their daily transactions, communication and searching for various information. One of the promotional media used in universities is in the form of visual communication media using the AISAS model in describing online promotions used by universities. This study aims to analyze the effectiveness of promotions carried out by the promotion of new student admissions (PMB) of Pekalongan University based on the concept of marketing communication and technological developments, namely attention, interest, search, action, and share (AISAS model). This study used a descriptive approach by distributing questionnaires to prospective new student recipients. With this research, it can be useful to evaluate the new student admissions section so that in making promotions, it is necessary to pay attention to the AISAS aspect so that the number of student applicants is much higher. The results of this study show that online promotion has a significant effect on attention, interest, and share. While promotion does not have a significant effect on search and action. Attention has a significant positive impact on interest. Interest has a significant positive effect on search. Search has a positive and significant effect on actions while actions do not have a significant effect on shares. Keywords: Marketing Communications, Promotion, College, AISAS
Analisis Perilaku Tanggung Jawab dalam Pembelajaran PKn Siswa Kelas IV SD Negeri Cipondoh 2 Kota Tangerang
Authors: Safitri Indah , Sa’odah Sa’odah , Magdalena Ina
Published: July 2023

Behavior Analysis of Responsibility in Learning PKn Class IV Students of SD Negeri Cipondoh 2 Tangerang City. Faculty of Teacher Training and Education, University of Muhammadiyah Tangerang 2020. This research is a descriptive qualitative research by taking data at SD Negeri Cipondoh 2 Tangerang City with the subject of teacher research. Data analysis was carried out through observation, interviews, questionnaires and documentation. Data analysis was carried out by collecting data, reducing data, presenting data that draw conclusions. The results showed that the analysis of responsibility behavior in PKn lessons at SD Negeri Cipondoh 2 Kota Tangerang was seen from data collection carried out through observation, interviews, questionnaires and documentation that: Analysis of responsibility behavior in PKn lessons, students are less responsible in lessons, it can be seen that the teacher must increase the responsibility of students in lessons in the classroom and outside the classroom.
Evaluasi Pelaksanaan Pembelajaran Online (E-Learning) Selama Masa Pandemi COVID-19 di SDI Sabilillah Sidoarjo
Authors: Izzudin Muh Ariz , Baalwi Muhammad Assegaf , Ali Thoufan Moch. Fabet
Published: July 2023

This study aims to evaluate the implementation of online learning (e-learning) during the Covid-19 pandemic at SDI Sabilillah. This type of research is evaluation research with a quantitative research approach. The method used in this research is descriptive method. Data collection techniques in this study used teacher and student questionnaires based on the CIPP evaluation model (context, input, process, product). The sample in this study was 11 teachers and 15 high class students. The results of this study indicate that the score obtained by the teacher based on the understanding and management of e-learning based learning is in the high category with a percentage of 87.78%. The scores obtained by students based on understanding of e-learning based learning were included in the high category with a percentage of 82.16%. Based on the discussion obtained from the results of the questionnaire, e-learning-based learning activities were carried out well (structured, on schedule and coordinated). Applications that are widely used are google classroom and google meet. Meanwhile, the obstacles experienced by teachers and students were the unstable internet network and difficulties in understanding the explanation from the teacher.
Peningkatan Hasil Belajar Tema Hidup Bersih dan Sehat melalui Pendekatan Saintifik Berbasis Pembelajaran Daring pada Siswa Kelas II SDN Jajartunggal III/452 Surabaya
Authors: Widyaningrum Rizky
Published: July 2023

Penelitian ini bertujuan untuk mengetahui peningkatan hasil belajar tema hidup bersih dan sehat melalui pendekatan saintifik berbasis pembelajaran daring pada siswa kelas II SDN Jajartunggal III/452 Surabaya. Analisis masalah pada penelitian ini adalah rendahnya hasil belajar siswa (dibawah nilai KKM) yang dikarenakan adanya pandemi Covid19 yang mengharuskan siswa belajar secara daring di rumah masing-masing. Subjek pada penelitian ini adalah siswa kelas II-D SDN Jajartunggal III/452 Surabaya Tahun Akademik 2020/2021. Dengan jumlah 31 siswa yang terdiri dari 14 siswa laki-laki dan 17 siswa perempuan. Penelitian ini menggunakan desain Penelitian Tindakan Kelas (PTK) melalui kegiatan siklus 1 sampai dengan siklus III.Nilai rata-rata siswa dari hasil tes siklus I yaitu 75,16. Dari hasil tes pada siklus I terdapat 17 siswa dinyatakan tuntas yaitu 54,84%, sedangkan yang belum tuntas belajar siklus I terdapat 14 siswa yaitu 45,16. Nilai rata-rata siswa dari hasil tes siklus II yaitu 81,77. Dari hasil tes pada siklus II terdapat 23 siswa dinyatakan tuntas yaitu 74,19%, sedangkan yang belum tuntas belajar siklus II terdapat 8 siswa yaitu 25,81%; (3) Dari data siklus III hasil belajar siswa sudah sangat baik dengan sebagian besar sudah melampaui KKM, hal ini ditunjukkan dengan nilai rata-rata siswa dari hasil tes yaitu 95,16. Dari hasil tes pada siklus III terdapat 28 siswa dinyatakan tuntas yaitu 90,33%. Dengan demikian hasil belajar hasil belajar tema hidup bersih dan sehat dapat meningkat dengan sangat baik melalui pendekatan saintifik berbasis pembelajaran daring.Kata Kunci: hasil belajar, pendekatan saintifik, pembelajaran daring, sekolah dasar.
Pengembangan Media Pembelajaran Pop-Up Book Materi Perkembangan Teknologi Transportasi Bahasa Indonesia Kelas III SD
Authors: Putri Nur Oktafiani , Suryarini Diah Yovita , Desiningrum Noviana
Published: July 2023

The author is writing describe development of 3D Learning media in the form of pop-up book for Bahasa Indonesia lesson with lesson material development of transportation technology for third grader elementary school. The learning media development in this study obtained its feasibility throughh media expert and material expert. This writting is in the form of qualitative using the ADDIE method (Analysis, Design, Development, Implementation, Evaluation). The author uses data collection techniques based on validity tests conducted by media masterful and material masterful. The results of writing a 3D learning media pop-up book for Indonesian subjects material development of third-grade elementary school technology that is included in the category of feasible/valid with the results of the media expert test reaches a percentage of 83.92% with validd criteria. While the results of the expert material test I reached a percentage of 77.08% with sufficient criteria valid/feasible and the results of the expert test material II reached a percentage of 100% with valid criteria / feasible. Based on the validity test, it can be summarized that the Pop-Up media that was developed entered into the criteria is valid/feasible so that this media is feasible and can be implemented in the classroom prac tice.Keywords: 3D Learning media, Pop-Up Book, Bahasa Indonesia, Development of Transportation Technology
Peran Teknologi Pendidikan dalam Sistem Blended Learning
Authors: Oetoyo Devy Larasati
Published: July 2023

Teknologi pendidikan memiliki peran penting dalam medorong proses pembelajaran di sekolah ataupun perguruan tinggi. Dewasa ini teknologi pendidikan telah berinovasi dengan progress yang sangat signifikan. Dapat dilihat dari berbagai macam platform pembelajaran saat ini banyak aplikasi yang telah tersedia. Selain itu, keadaan pandemic covid 19 juga mendukung berkembangnya teknologi pendidikan hingga menjadi pesat, karena adanya pandemic ini mengharuskan kita untuk melangsungkan kegiatan pembelajaran dengan sistem online ataupun offline. Kedua sistem tersebut disebut sebagai sistem blended learning. Dalam penerapan sistem blended learning sistem pembelajaran menerapkan perpaduan antara sistem modern dan sistem tradisional. Hal ini tentu saja memberikan kemudahan bagi peserta didik yang bertempat tinggal dekat ataupun jauh dari tempat sekolah ataupun kampus. Cara pengambilan materi pada kasus ini memakai study pustaka karena dalam pengumpulan data bercorak kualitatif. Maka dari itu, data ini bersifat deskriptif yakni memuat kumpulan informasi penelitian dengan memfokuskan pada telaah literature yang bersumber dari jurnal, buku, dan lain sebagainya. Dari hasil perumusan ini nantinya dapat diambil sebuah kesimpulan bahwa penelitian ini mampu memperlihatkan bagaimana peran teknologi pendidikan dalam sistem blended learning.
PENGEMBANGAN MEDIA GEOMETRI BERBANTUAN SOFTWARE GEOGEBRA PADA MATA PELAJARAN MATEMATIKA MATERI KOORDINAT
Authors: Fitri Nanda Yulia
Published: July 2023

Dengan perkembangan zaman, pemanfaatan media sudah banyak diciptakan berbasis software. Namun masih kurang kreativitasnya guru dalam mengembangkan media tersebut.  Penelitian ini bertujuan untuk mengembangkan media Geometri berbantuan Software Geogebra pada pembelajaran Koordinat, untuk membantu guru dalam proses belajar dan mengetahui keefektifan dari media Geometri berbantuan Software Geogebra pada pembelajaran Koordinat. Jenis penelitian adalah penelitian dan pengembangan atau Research and Development (R&D), dengan menggunakan Model ADDIE (Analysis, Design, Development, Implementation dan Evalution). Akan tetapi penelitian dilakukan hanya sampai pada tahap Development (Pengembangan). Produk yang dikembangkan merupakan media geometri yang di nilai oleh para ahli untuk mengetahui layak tidak nya media digunakan. Jenis data yang digunakan dalam penelitian ini berupa data kualitatif deskriptif. Hasil dari penilaian ke-2 dosen yaitu dosen ahli media dan ahli materi tersebut menilai bahwa media “Setuju” dengan tanpa revisi. Kesimpulan dalam penelitian ini adalah hasil media Geometri berbantuan Software Geogebra yang dikembangkan berupa penilaian dari para ahli media dan ahli materi menunjukkan bahwa media setuju dan layak untuk digunakan dalam proses pembelajaran.Kata Kunci: Media Geometri, Software Geogebra, Koordinat.
DESAIN PEMBELAJARAN KOOPERATIF TIPE THINK PAIR SHARE (TPS) PADA PENYAJIAN MATERI GARIS DAN SUDUT DI SD NEGERI 101884 LIMAU MANIS
Authors: Pasaribu Listiyana
Published: July 2023

Abstrak Tujuan penelitian ini adalah untuk mengembangkan media LKPD pada materi sudut dan garis kelas IV SD. Bentuk penelitian ini adalah r & d (research and depolopment), dan model pengembangan ini menggunakan model ADDIE yang terdiri dari beberapa tahapan. 1. Analysis, 2. Perancangan (design), 3. Pengembangan (development), 4. Implementasi (implementation), 5. Evaluasi (evalution). Pengumpulan data melalui observasi, Desain produk menggunakan aplikasi Canva. Penilaian media LKPD divalidasi oleh ahli media dan materi yaitu dua dosen Universitas Muslim Nusantara Al-washliyah Medan. Hasil dari penilaian dari tahap validasi dijadikan bahan dalam melakukan revisi LKPD. Berdasarkan hasil penelitian ini dapat disimpulkan bahwa pembelajaran Matematika menggunakan media LKPD dapat membantu dalam proses belajar mengajar siswa kelas IV SD, hal ini terbukti dari hasil validasi para ahli media yang mendapat tanggapan layak digunakan.Kata Kunci: Pengembangan LKPD, Pembelajaran Matematika.
ANALISIS BUKU AJAR MATEMATIKA BERDASARKAN TEORI BELAJAR BRUNER DI KELAS V SD NEGERI 101954 PANTAI CERMIN KANAN
Authors: Rahmadhani Dewi
Published: July 2023

Abstrak Metode pembelajaran yang digunakan dalam proses pembelajaran adalah kunci penting dari hasil belajar siswa. Hasil belajar siswa sangat tergantung dari metode pembelajaran yang digunakan oleh guru. Jika metode pembelajaran yang digunakan membosankan maka tidak dapat mendorong siswa menjadi siswa yang aktif dalam pembelajaran. Hal ini dibuktikan dengan metode pembelajaran guru yang hanya menggunakan buku dan ceramah saja sebagai media pembelajarannya. Dan tidak mendorong siswa menjadi siswa yang aktif dalam pembelajarannya. Rumusan masalah penelitian ini adalah apakah Teori Belajar Bruner efektif diterapkan dalam pembelajaran matematika pada siswa kelas V SD Negeri 101954 Pantai Cermin Kanan? Tujuan penelitian ini adalah untuk menganalisis Buku Ajar Matematika Berdasarkan Teori Belajar Bruner di Kelas V SD Negeri 101954 Pantai Cermin Kanan. Penelitian ini menggunakan seluruh guru dan siswa di SD Negeri 101954 Pantai Cermin Kanan Kecamatan Pantai Cermin Kabupaten Serdang Bedagai sebagai subjek penelitian. Pengambilan data dilakukan dengan cara wawancara, observasi, dan dokumentasi. Hasil Penelitian menunjukkan bahwa bawah buku ajar matematika berdasarkan teori belajar bruner sangat efektif diterapkan di kelas V SD Negeri 101954 Pantai Cermin Kanan Kecamatan Pantai Cermin Kabupaten Serdang Bedagai.Kata Kunci: Analisis Buku Ajar Matematika, Teori Bruner, Kelas 5.
PENGARUH MEDIA PEMBELAJARAN RODA PINTAR TERHADAP MOTIVASI BELAJAR PADA MATA PELAJARAN BAHASA INDONESIA HIDUP SEHAT DAN BERSIH DI TEMPAT UMUM SISWA KELAS II SDN 106815 DELI SERDANG
Authors: Hasugian Forman Teddoh Marito
Published: July 2023

Hakikat motivasi belajar adalah “dorongan internal dan eksternal pada siswa-siswa yang sedang belajar untuk mengadakan perubahan tingkah laku. Adapun masalah yang penulis temukan melalui penggunaan media pembelajaran roda pintar terhadap motivasi belajar siswa di SDN 106815 , diperoleh data yang menunjukkan penggunaan media pembelajarannya roda pintar cukup baik dan motivasi belajar siswa juga tergolong cukup baik. Rumusan masalah yang penulis ajukan dalam penelitian ini adalah “Apakah penggunaan media pembelajaran roda pintar mempengaruhi motivasi belajar siswa pada mata pelajaran bahasa Indonesia materi hidup sehat dan bersih di lingkungan umum di kelas II SDN 106815 Deli Serdang. Penelitian yang peneliti lakukan merupakan penelitian kuantitatif. Metode pengumpulan data yang penulis gunakan adalah metode angket dan dokumentasi. Hasil analisa data penulis menggunakan rumus dan hasil yang diperoleh (X2) yaitu 12,04 lebih besar dari Chi Kuadrat tabel pada taraf signifikan 5% pada df atau db = 4 yaitu 9,488, dengan demikian harga Chi Kuadrat hitung lebih besar dari harga Chi Kuadrat tabel pada taraf signifikan 5% karenanya Ho ditolak dan Ha diterima. Sehingga dapat disimpulkan bahwa ada pengaruh yang positif antara pengaruh penggunaan media pembelajaran roda pintar terhadap motivasi belajar siswa pada mata pelajaran bahasa indonesia di SDN 106815.
El arquitecto Gaspar Cayón. Algunos apuntes sobre su formación
Authors: Mejía Ortiz Edgar Antonio
Published: July 2023

Se analizará la formación artística de Gaspar Cayón, estableciendo sus virtudes técnico-constructivas, tomando como fundamento las obras en las que tuvo participación, como la catedral de Guadix. Además destacaremos su relación con otros artífices contemporáneos a él, así como también la manera en que estos influyeron en su repertorio creativo. A partir de ello, reflexionaremos sobre su paso por Andalucía en este proceso formativo y sus cualidades arquitectónicas tanto teóricas como prácticas, con el propósito de dar luz a tan importante maestro y distinguir su participación al demostrar sus conocimientos en la montea y cantería, otorgándole así una personalidad constructiva.
Analysis of nucleotide sequences of the GT47 glycosyltransferase gene in rye cultivars differing in the content of water-soluble pentosans in grain
Authors: Zaikina E. A. , Kayumova R. R. , Kuluev A. R. , Ismagilov R. R. , Kuluev B. R.
Published: July 2023

Rye (Secale cereale L.) is the most important crop in Russia, its grain quality depends on the content of water-soluble pentosans. The grain of rye cultivars with high content of water-soluble pentosans has good baking properties, but low fodder qualities. Methods of marker-assisted selection for this trait in rye remain undeveloped. For Triticeae, the content of pentosans in grain may be associated with the GT47 glycosyltransferase genes, but the genes of this family have not been identified in rye.

   The aim of this study was amplification, sequencing, and search for single nucleotide substitutions or other mutations in the GT47 gene in various rye cultivars differing in the content of water-soluble pentosans in their grain and the viscosity of their aqueous extract.

   DNA from rye leaves was isolated by the standard CTAB method. Based on the nucleotide sequences of the bread wheat and barley GT47 genes, universal primers were selected, then a fragment of the open reading frames of the studied gene was amplified, and the nucleotide sequences were determined by automatic capillary sequencing. The population cultivars of rye, ‘Chulpan 7’ and ‘Podarok’, and F1 hybrids ‘KVS Aviator’, ‘KVS Magnifico’ and ‘KVS Eterno’ were analyzed. The highest content of pentosans and the highest kinematic viscosity of the aqueous extract were found in cv. ‘Chulpan 7’. The lowest values of these indicators were shown by the hybrid cv. ‘KVS Aviator’. The analysis of the nucleotide sequences of the GT47 gene revealed the presence of single-nucleotide substitutions in seven loci, in which the studied rye cultivars differed. Of these, the high-pentosan cv. ‘Chulpan 7’ and the low-pentosan cv, ‘KVS Aviator’ differed in three nucleotide substitutions: 159 (G/A), 204 (C/T), and 327 (G/A). It is suggested that these SNPs can be used for genotyping rye cultivars for the content of water-soluble pentosans in grain.
Marker-assisted breeding of hybrid lines of Triticum dicoccon (Schrank) Schuebl. × Triticum aethiopicum Jakubz. with purple grain
Authors: Stepochkin P. I. , Gordeeva E. I. , Khlestkina Е. K.
Published: July 2023

Background. Cereals whose grain contains antioxidants salutary for human health are promising for functional nutrition. Anthocyanins inducing purple grain color are antioxidants, and it is crucial to make efforts towards increasing their content in grain.

   The objective of this work was to assess the content of anthocyanins in emmer grain and the productivity of breeding lines with purple grain.

   Materials and methods. The study included the F9 lines developed by two-step hybridization between purple-colored Ethiopian wheat (Triticum aethiopicum Jakubz. var. arraseita) and emmer (Triticum dicoccon (Schrank) Schuebl.), and those isolated in F2 using marker-based selection for homozygous dominant alleles of two genes. The parent forms of the hybrids were a naked-grain emmer cultivar ‘Gremme’, an awnless emmer accession (k-25516) from the VIR collection, and an accession from the collection of IPK Gatersleben (Ethiopian wheat line TRI 15744), the donor of the purple color. The content of anthocyanins in whole-grain flour was measured in 12 lines, a structural analysis of plants was carried out, and their quantitative characteristics were assessed.

   Results. The highest anthocyanin content (82.5 µg per 1 g) was observed in line No. 10 of the 27-3 hybrid. The largest share of threshed naked grains (86.9 ± 7.3 %) was recorded for line No. 6 of the 31-19 hybrid. Line No. 11 of the 27-12 hybrid had the highest test weight (802 ± 13 g/L). Line No. 9 of the 27-1 hybrid showed the best index of grain productivity (389 ± 25 g/m2).

   Conclusion. Marker-assisted selection made it possible to identify homozygous dominant alleles of the two complementary interacting genes, Pp3 and Pp-B1, which cause the purple color of the grain pericarp. Breeding lines with purple-colored grain demonstrated different levels of the total anthocyanin content, test weight, and grain yield. The lines with high indices of these traits are valuable for breeding practice.
Bread wheat callusogenesis and organogenesis using mature embryos as explants
Authors: Gumerova G. R. , Galimova A. A. , Kuluev B. R.
Published: July 2023

Background. Bread wheat (Triticum aestivum L.) is one of the staple cereal crops, so it is of great interest to breeders and researchers and requires constant monitoring of existing cultivars, including the development of new ones through classical breeding and modern gene engineering. The key stage in these techniques is successful callusogenesis and organogenesis intarget objects. With this in view, the regeneration potential of two spring (‘Saratovskaya 55’ and ‘Sigma’) and three winter (‘Tanya’, ‘Fisht’ and ‘Pamyat’) cultivars of bread wheat was assessed, and optimal conditions were identified for callus induction and organogenesis using mature embryos.

   Materials and methods. Immature and mature embryos of the five bread wheat cultivars were used in the study. The in vitro morphogenetic potential was evaluated under the impact of abiotic factors: preliminary exposure of grains to cold and use of exogenous hormones (2,4-D in various concentrations). Pretreatment of wheat with cold was carried out as follows: sterilized grains were incubated on the hormonal medium at a temperature of 4 °C for 2 weeks, and then transferred to 26 °C for 4 more weeks. The efficiency of callusogenesis and rhizogenesis was assessed and the numbers of morphogenetic calluses, regenerated and acclimatized plants were calculated.

   Results and conclusions. The analysis made it possible to identify the bread wheat cultivars ‘Fisht’ and ‘Sigma’ for their high morphogenetic and regenerative potential. It was also shown that exposure to cold can serve as a good stimulating factor for producing a large number of calluses, but regenerants are better induced under normal conditions. The results also depended on the concentration of hormones applied. Universal conditions for morphogenesis and regeneration were not identified.
Higher stability of oat, barley and wheat accessions in their 1000 grain weight is not associated with a smaller grain size
Authors: Polonsky V. I. , Sumina A. V. , Gerasimov S. A. , Kolichenko A. A.
Published: July 2023

Background. It is important and relevant to know whether the selection among cultivars for increased stability in the weight of 1000 grains involves a significant change in grain size.

   The aim of the study was to analyze the relationship between the 1000 grain weight in oat, barley and wheat accessions, on the one hand, and their adaptability indicators for this trait, on the other.

   Material and methods. The studied material included 10 cultivars of oat, 12 of barley, and 11 of wheat from the VIR collection. Plants were grown in 2021 at five different sites over Eastern Siberia (Krasnoyarsk Territory, and the Republic of Khakassia and Tyva). After harvesting, the weight of 1000 grains was measured for each cultivar. The coefficient of environmental variation (Cv), stress tolerance index (d), homeostasis parameter (Hom), stability level index (CSL), and breeding value index (Cs) were determined to assess the cultivars for the analyzed character.

   Results. Oat cultivars exhibited significantly lower plasticity and higher stability in their 1000 grain weight. The best adaptability characteristics were recorded for oat cvs. ‘Argument’ and ‘Kross’, barley cvs. ‘Krasnoyarsky 91’ and ‘Biom’, and wheat cvs. ‘Novosibirskaya 49’ and ‘Novosibirskaya 75’. Cvs. ‘Kross’ and ‘Argument’ (oat). and ‘Biom’ (barley) had the largest grain size and maximum values of the character’s stability parameters. Correlations of oat and wheat grain size with both plasticity indices were negative, and positive with all stability parameters, being significant for CSL and Cs. In the case of barley cultivars, the correlation between the weight of 1000 grains and the plasticity index was negative and statistically significant.

   Conclusion. The results demonstrate that when selecting oat, barley and wheat for increased stability of their 1000 grain weight, the grain size will not decrease. Moreover, it may have a tendency to increase.
The effectiveness of using some criteria for determining adaptability on the example of winter rye cultivars
Authors: Safonova I. V. , Aniskov N. I.
Published: July 2023

Background. For most regions of Russia, winter rye is an indispensable grain and fodder cereal. Recently, winter rye crops have been declining. It is possible to improve this situation by releasing cultivars that ensure consistently high grain productivity under various growing conditions. Therefore, measuring the level of adaptability for yields in different mathematical quantities using a variety of methods is an urgent need.

   Materials and methods. For an unprejudiced assessment of winter rye cultivars, the following adaptability parameters were calculated and analyzed: the intensity coefficient (I) and constancy of the stability index (Y) according to Udachin and Golovchenko; stability index (IS) according to Hangildin; range breadth (Jsp) according to Eberhart and Russell; breeding value (Sc) according to Hangildin; responsiveness coefficient (Cr.) according to Zykin; genotypic effect (Ɛi) according to Guryev; equalization coefficient (B) according to Dospekhov; multiplicativity coefficient (KM) according to Dragavtsev; and reaction effect (Er.) according to Novokhatin. Field experiments and the study of 8 winter rye cultivars were carried out according to VIR’s guidelines in 2012–2017.

   Results and conclusion. A significant variation was found in grain yield; it was induced by the high contribution of the “year” factor (79.4 %). The best conditions for higher yields were formed in 2012 and 2015. An analysis of the six-year average yield showed that cvs. ‘Rushnik 2’, ‘Bereginya’, and ‘Novaya Era’ exceeded ‘Ilmen’ by 5–22 %. It was shown that among the selected ten indicators, worth attention were the multiplicativity coefficient, the stability index, the breeding value index, the reaction effect of a cultivars, and the range breadth index: they established the adaptability level of a cultivar with higher statistical significance. Cvs. ‘Novaya Era’, ‘Yanrarnaya, ‘Bereginya’, and ‘Vavilovskaya’ from the analyzed set demonstrated high adaptability.
Evaluation of commercial traits in the accessions of the wheatgrass genus (Agropyron Gaertn.) under the conditions of Central Yakutia
Authors: Kochegina A. A. , Koryakina V. M.
Published: July 2023

Studying plants of the wheatgrass genus as a unique and valuable fodder and phytomeliorating perennial arid xerophytic crop is of great interest to plant breeders, geneticists, biologists, ecologists, agriculturists, and forestry experts in southern regions of Russia, the ex-USSR republics, a number of European and Asia Minor countries, the U. S., Canada, and China. Accessions from the VIR collection representing five wheatgrass species were studied for the first time under the harsh conditions of extremely continental climate in the northern region of Central Yakutia. Introducing wheatgrass, widespread in this region, into cultivation, and releasing new cultivars adapted to local conditions are urgent tasks in forage production. Agropyron Gaertn. incorporates polyploid series, which expands the possibilities of using its accessions in hybridization.

   The aim of this study was to analyze and select promising accessions as sources for further use in breeding practice to develop a new cultivar for hay and pasture purposes, and identify genotypes with the best agronomic characteristics.

   Results of a three-year (2018–2020) study involving 22 wheatgrass accessions of various ecogeographic origin are presented. The accessions identified over a two-year period for their average yield of green fodder biomass were k-52382 (143.7 g/plant) from Pavlodar Region of Kazakhstan, and the Kazakh cultivar ‘Batyr’ (142.5 g/plant); for the yield of dry fodder biomass, crested wheatgrass k-52382 (on average 65.8 g/plant), k-51330 from Chelyabinsk Province (56.1 g/plant), and cv. ‘Batyr’ (53.2 g/plant); for high seed yield, Siberian wheatgrass accession k-52440 (28.4 g/m2), wild crested wheatgrass k-51330 (25.2 g/m2) and k-52380 (19.4 g/m2), and Kerch wheatgrass k-48705 (17.3 g/m2). Nutrients and energy in the tested accessions were assessed.
Representatividade no audiovisual
Authors: Penner Tomaz , Greco Clarice
Published: July 2023

Este artigo tem como objetivo discutir a diversidade de personagens da série 3%, com vias a estender o debate para a diversidade no audiovisual brasileiro. Iniciamos com uma discussão sobre teorias de gênero, teoria queer e o viés analítico da interseccionalidade, tanto do ponto de vista sociocultural quanto pela perspectiva das relações de poder e subalternidade. Em seguida, apresentamos um panorama das personagens LGBT+ na série 3%, a fim de verificar a representação de personagens e suas interseccionalidades. Por fim, aprofundamos a análise da personagem Joana, única protagonista LGBT+ negra de uma série brasileira produzida pela Netflix até a realização desta pesquisa.
Ellos me enseñaban lo que habían aprendido de otros y yo fui después poniendo lo mío. Circulación de saberes en las comunidades de práctica del carnaval correntino
Authors: Galarza Carlos Axel , Piñeyro Nidia Bibiana
Published: July 2023

El tema de este artículo es parte de una investigación más amplia que problematiza un espacio pedagógico y laboral en el que se generan, reproducen y recrean saberes culturales en el marco de las actividades preparatorias de las fiestas de carnaval en la ciudad de Corrientes, Argentina. Nos proponemos volver observables los procesos formativos que tienen lugar en los llamados “talleres”, ámbito de trabajo que impacta directamente en la producción del desfile de carnaval y donde la transmisión de conocimiento remite a las formas de las comunidades de práctica (Lave & Wenger, 1991). El rasgo distintivo, respecto de otros enfoques, es que sitúa a la práctica como la categoría central en el análisis y considera el aprendizaje como el recurso más valioso que posee la organización. También, las experiencias de trabajo de los grupos que intervienen en el diseño, producción y puesta en escena del desfile de carnavales son analizadas desde la perspectiva de los aprendizajes socialmente productivos (Rodríguez, 2011). El estudio es de corte cualitativo, privilegia la perspectiva de los actores involucrados en el proceso utilizando técnicas etnográficas como la observación participante, entrevistas en profundidad (Guber, 2006) y registro fotográfico. Los resultados que exponemos se relacionan con la identificación y descripción de las prácticas formativas más utilizadas que se dan en el interior de las organizaciones denominadas comparsas durante los meses previos a la presentación del espectáculo en público.
Computer modeling and software research of car and engine parts
Authors: Kalchenko Volodymyr , Kolohoida Antonina , Pasov Gennadiy , Sira Nataliia , Klimenko Valeriy
Published: July 2023

Problem. The development of automotive technology for various purposes and the improvement of existing car models, requires a fast and flexible design process. Spatial models of details and nodes are the starting points for design, and the necessary design documentation is performed on their basis. When manufacturing parts on CNC machines, it is necessary to quickly obtain a control program that will increase the accuracy of the product by ensuring the optimal trajectory of the mutual movement of the part and the tool. Therefore, the creation of a comprehensive methodology for the design of car parts, their basic inspection and obtaining design documentation is an important technical task. Goal. The main goal of the work is to determine the rational sequence and basic principles of computer-aided design, research and manufacturing of car and engine parts, and the development of mathematical spatial models of surfaces in order to optimize control programs for CNC machines. Methodology. The approaches adopted in the work for solving the set goal are based on general design principles. The methods of conducting static and dynamic calculations, as well as spatial mathematical modeling of the processes of manufacturing parts were also used. Results. A comprehensive methodology for designing parts of engines and cars has been developed. The main principles of creating spatial models have been determined in order to achieve their flexibility and simple editing. Methods of automating the development of drawings and design documentation are described. The software options for the primary verification of static strength and frequency analysis are considered. A calculation program has been developed for constructing transient and amplitude-phase-frequency characteristics. The mathematical spatial modeling of typical surfaces of the camshaft is provided with the aim of further research and optimization of the development of a control program for processing on a CNC machine tool. Originality. The defined basic principles of designing parts of engines and cars provide an opportunity to create a flexible spatial model and more fully automate the process of drawing up technical documentation. The developed mathematical spatial models of the supporting and working surfaces of the camshaft make it possible to write a control program with the determination of the optimal trajectory of the mutual movement of the part and the tool. Practical value. The obtained results can be recommended when designing car parts and assemblies.
Technological methods of improving the quality and productivity of processing car engine parts
Authors: Kalchenko Volodymyr , Venzhega Volodymyr , Kuzhelnyi Yaroslav , Klimenko Valeriy
Published: July 2023

Problem. The most high-precision parts of the car engine are camshaft and crankshaft, parts that require two-sided processing of the end surfaces: piston pins, valve springs. Traditional processing methods are used in their manufacture and repair. Therefore, taking into account the large volumes of car production, the improvement of existing and development of new processing methods is very important. Goal. The purpose of this work is the analysis and improvement of existing methods and the implementation for new ones of processing the specified parts to increase the productivity and accuracy of their processing. Methodology. The processing of support necks and cams is expedient to be carried out in one installation during deep high-speed grinding with crossed axes of the circle and camshaft due to stabilization of the cutting depth and feed along the contour with uneven rotation of the part. The method of high-speed milling of camshaft cams with crossed axes of the tool and parts on CNC machines is also promising. Root and connecting rod necks of crankshafts can be processed in one installation by deep high-speed grinding with crossed axes of the circle and the part due to stabilization of the depth of cutting and feed along the contour with uniform rotation of the part. For end surfaces, it is possible to introduce single-pass processing on double-sided end grinding machines with oriented grinding wheels with calibration areas. Results. The obtained results indicate a 25-30% increase in productivity and processing accuracy of the specified parts. Originality. It is used when processing the effect of the intersection of the axes of the tool and the part and carrying out a special correction of the tool, which allows to obtain a calibration area. Practical value. The proposed methods improve the parameters of accuracy, roughness and productivity of processing, which is an important scientific and practical task, whose solution will allow to increase the service life of car components and assemblies, reduce the cost of their production, and raise the level of competitiveness of products and services.
Developing a coordinated regulation schedule to prevent damage to the environment by vehicles and improve the structure of the energy system: evidence from the city of Baku (Azerbaijan)
Authors: Baghirov Mirhamid
Published: July 2023

Problem. The scale of road traffic is constantly increasing all over the world, which is the basis and indispensable condition for sustainable economic growth, on the one hand, and the source of a complex of transport and environmental problems, on the other. One of the most pressing problems is the congestion of road networks. Goal. The purpose of the article is the analysis of the way to organize the creation of an effective system that controls traffic in an urban agglomeration. Methodology. This article analyzed the case of one of the main avenues of Baku to develop a coordinated regulation schedule for reducing vehicles damage to the environment by waiting at a red light, as well as for improving the structure of the energy system in the developing countries, especially in Ukraine, which has been suffering from war. Results. For this reason, in the article a proposal was made to improve the efficiency of traffic management at the main intersection of Matbuat avenue in Baku, the number of vehicles moving on the avenue was studied and the traffic light timings report was made at all intersections, the reports were adapted to the main roadway, and a green wave graph was constructed. Originality. The methodology for estimating environmental and economic damage from the impact of motor vehicles on the urban ecosystem, including indexation coefficient has been improved. The methodical bases of the design of a complex of environmental measures to reduce the impact of vehicles on the environment of Baku have been substantiated. The article provides a basis for the design of a complex of environmental measures. Practical value. A set of measures has been developed to reduce pollution from city vehicles, which can be used in regional and municipal programs.
Methodology for determining bottlenecks on the city's street-road network by analyzing GPS track data
Authors: Riabushenko Oleksandr
Published: July 2023

Problem. The article considers the issue of determining the location of "bottlenecks" on the highways of large cities based on the study of the vehicle's driving mode, obtained as a result of GPS data processing and analysis. Purpose. The purpose of this study is to develop and test the methodology for identifying potential "bottlenecks" on the city's freeway by analyzing the GPS track data of the car. The subject of the study is the interrelationship of the characteristics of the sections of the city’s street-road network (SRN) with the parameters characterizing the vehicle movement mode in the traffic flow. Methodology.  Two experimental routes with the same starting and ending points were chosen to obtain data on traffic conditions on the SRN of the city of Kharkiv, which correspond to typical routes of official movement of personal transport on weekdays. During the movement of the car along the specified routes, GPS tracks were obtained, whose processing made it possible to determine the driving conditions along the entire length of the routes. Results. The work presents a method of researching the vehicle's driving mode by analyzing GPS track data; the determined indicators of the traffic regime, which can be effectively used as criteria for determining potential "bottlenecks" on the city's SRN; the methodology was tested on real traffic routes on the SRN of the city of Kharkiv. For selected routes, the work presents histograms of instantaneous speed distribution, graphs of car movement in "distance - speed" and "time - speed" coordinates. Graphs of changes in specific time in motion, specific idle time, speed gradient, energy gradient, Hermann-Prygozhin criterion were obtained for individual kilometer segments of routes. The specific idle time and the Herman-Prygozhin criterion turned out to be the most effective criteria for the purposes of determining the "bottlenecks" of SRN. Originality. An experimental technique was developed and tested, which allows to determine the potential "bottlenecks" of the city's SRN as a result of conducting short-term and not labor-intensive research. The proposed approach does not require the presence of specialized equipment or software, which makes this method effective when conducting scientific research. Practical value. The possibility of using the proposed method of data processing of GPS tracks to analyze traffic conditions on the city highway and identify potential "bottlenecks" was shown. For the selected routes in Kharkiv, such sections turned out to be Vesnina St. (beyond the intersection with Pushkinska St.); Heroes of Stalingrad Ave. (access to the intersection from Leva Landau Ave.); Gagarina Ave. (access to the intersection with Kashtanova St.)
A review of the automated guided vehicle systems: dispatching systems and navigation concept
Authors: Siegfried Patrick , Bourafa Rami
Published: July 2023

Problem. As one of the three key elements of flexible manufacturing systems (FMS), automated guided vehicles (AGVs) play a significant role in material handling systems. They've been around for more than a decade, primarily in Europe. AGVs were formerly utilized mostly in production lines, but due to recent industrial development, they now play a vital role in a variety of different applications and domains, including warehouses, port facilities, transportation systems, and even the medical sector. Goal. The purpose of the work is to analyze two methods of AGV control and the paths that the AGV should follow during transport operations, taking into account safety and limitations for heavy loads that need to be transported in difficult conditions. Methodology. We attempted to provide a summary of the two existing AGV control methods, centralized and decentralized control offered by major manufacturers in this study. Almost all function in a centralized manner, with a single central controller controlling the whole fleet of AGVs. The author sees a tendency toward decentralized systems in which AGVs make individual decisions in favor of transportation flexibility, robustness, and adaptability. A brief explanation of well-known and mature navigation technologies used by AGVs in the industry is also provided, along with both physical and virtual paths to be followed by the AGV during transportation operations, since these technologies get to be a key issue given the safety constraints, particularly for heavy loads to be transported in challenging environments. Results. This paper covers one of the key tasks that must be completed in order to control an AGV system for a central and decentral architecture, for which we have already given a broad overview, as well as the differences between the architectures and their benefits and drawbacks. Originality. The author sees that the merging of various techniques we have will lead to more and new challenges as well as innovations, however, that practical application of distributed control still requires further research and studies and has a way to go in terms of taking other sections such as safety and sustainability into account. Practical value. The primary benefits and drawbacks of various technologies are discussed, as well as how we might improve the efficiency of some of them.
Tinjauan Dampak Kenaikan Harga BBM terhadap Pelaku Usaha di Kecamatan Belang: Perspektif Maslahah Mursalah
Authors: Tadete Fitriani , Suleman Frangky , Subeitan Syahrul Mubarak
Published: July 2023

Penelitian ini bersifat deskriptif kualitatif yang bertujuan untuk melihat dampak kenaikan harga BBM (Bahan Bakar Minyak) terhadap pelaku usaha di Kecamatan Belang Kabupaten Minahasa Tenggara dan dianalisis melalui perspektif Maslahah Mursalah. Pendekatan penelitian yang digunakan dalam penelitian ini adalah pendekatan studi kasus, dengan teknik pengumpulan data menggunakan metode observasi, wawancara, dan dokumentasi. Data yang dikumpulkan merupakan hasil penelitian di beberapa titik seperti terminal taksi wilayah Belang-Manado, Pasar Belang, dan pelabuhan kapal nelayan yang ada di kecamatan Belang. Penelitian ini juga melakukan analisis data dan pengecekan keabsahan data. Penelitian ini memperoleh data bahwa dampak kenaikan harga BBM terhadap pelaku usaha di Kecamatan Belang, yaitu membengkaknya pengeluaran karena segala kebutuhan juga ikut naik, minat pelanggan berkurang karena pelanggan lebih memilih harga yang relatif murah, daya saing harga meningkat karena penimbunan barang sebelum kenaikan harga BBM oleh pelaku usaha yang memiliki modal yang cukup banyak, pendapatan menurun karena segala biaya operasional meningkat, dan terpaksa mencari pekerjaan lain sebagai penambah perekonomian demi memenuhi kebutuhan hidup keluarga. Kebijakan pemerintah dalam menaikan harga bahan bakar minyak tidak sejalan dengan konsep Maslahah Mursalah yang tujuannya untuk mengedepankan kepentingan dan kesejahteraan masyarakat. Malahan, dengan terbitnya kebijakan untuk menaikan harga BBM akan semakin mengerucut kepada persoalan yang makin kompleks, yaitu meningkatnya angka kemiskinan. Karena kenyataannya setelah naiknya harga BBM, banyak masyarakat yang penghasilannya menurun dibandingkan sebelum diterapkannya kebijakan pemerintah untuk menghapuskan dan menaikan harga BBM.