bluuebunny/crossref_metadata_2025 huggingface dataset:
Adaptive Auxiliary Loop for Output-Based Compensation of Perturbations in Linear Systems
Authors:   Trapeznikov Institute of Control Sciences, Russian Academy of Sciences, Moscow, Russia, Glushchenko A. , Lastochkin K. ,   Trapeznikov Institute of Control Sciences, Russian Academy of Sciences, Moscow, Russia
Published: October 2024

The problem of output-feedback compensation of bounded additive perturbations affecting a minimum-phase linear system with unknown parameters is considered. An adaptive auxiliary loop is developed, which does not require to know the perturbation model and allows one to: a) separate the processes of estimation of parametric and additive perturbations, b) estimate and compensate for the additive perturbation with any given accuracy if the conditions of the parametric identifiability are met. The above-mentioned separated estimation of two disturbances of different nature is achieved by augmentation of the A.M. Tsykunov auxiliary loop method with the law to identify the unknown parameters, which is based on the instrumental variables approach and the procedure of dynamic regressor extension and mixing (DREM). The obtained system of the additive perturbations compensation has a certain potential to be used together with the conventional industrial PI-, PID-controllers. The theoretical results of this study are validated via mathematical modelling.
CNVs in Patients with Neurodevelopmental Disorders: Meta-Analysis
Authors: Fedotov D. A. , Kashevarova A. A. , Lebedev I. N.
Published: October 2024

This review is devoted to a comprehensive analysis of DNA copy number variations (CNVs) identified in patients with neurodevelopmental disorders (NDDs) from the literature. The selection of publications was conducted using specifically developed criteria. CNVs were characterized based on their clinical significance, type of copy number alteration (microdeletion/microduplication), size, origin, and gene content. The study sample comprised 3,375 patients with NDDs, among whom pathogenic and likely pathogenic CNVs, as well as variants of uncertain clinical significance, were identified in 395 individuals (12%). Chromosomal variations from each category were identified in 89 (3%), 56 (2%), and 241 (7%) patients, respectively. Nine individuals exhibited combinations of CNVs with varying clinical significance. The number of microduplications slightly exceeded the number of deletions (250 and 204, respectively). The size of most CNVs ranged from 193 bp to 400 kb and from 1 to 3 Mb (237 and 96, respectively). Seventy-two variants originated de novo, while 165 were inherited. Eighty-six CNVs were associated with 33 known microdeletion/microduplication syndromes. The most prevalent syndromes included 1q21.1 microduplication (7/395, 1.8%) (OMIM: 612475), 2p16.3 microdeletion (9/395, 2.3%) (OMIM: 614332), 15q13.3 microdeletion (7/395, 1.8%) (OMIM: 612001), 16p11.2 microdeletion (9/395, 2.3%) (OMIM: 611913), and 22q11.2 microduplications (7/395, 1.8%) (OMIM: 608363). Enrichment analysis revealed that pathogenic CNVs, as well as variants of uncertain clinical significance, are enriched in genes associated with abnormal behavioral/neurological phenotypes. Likely pathogenic CNVs included genes linked to disorders of the nervous system and homeostasis/metabolism.
Genetic Diversity of the Field Vole Microtus agrestis (Arvicolinae, Rodentia) in the Central Part of Northern Eurasia According to the Cytochrome b Gene Data
Authors: Yalkovskaya L. E. , Sibiryakov P. A. , Krohaleva M. A. , Markova E. A. , Borodin A. V. , Borisov S. A. , Chibiryak M. V. , Bobretsov A. V.
Published: October 2024

An analysis of the genetic diversity of the field vole was carried out with the inclusion of new data on the complete sequences of the cytochrome b gene from the least studied area of the species range – the central part of Northern Eurasia (20 localities of the East European Plain, the Urals, Western and Eastern Siberia). The obtained results are generally consistent with modern view on the species phylogeography, but indicate the previously not investigated genetic heterogeneity of the Eastern clade, which occupies the entire Asian part of the species’ range and its European part to Northern and Eastern Europe. The comparison of the genetic diversity analysis results with the age of paleontological findings, carried out using the Urals territory as the example, allows to assume that climatic changes in the late Pleistocene and Holocene could not lead to the complete extinction of the species in the region, but to the spatial redistribution of its populations and to the complete or partial replacement of some genetic groups by others.
Identifiable Information Value of Standard Autosomal STR in Indigenous Populations of Russia for Determination of First-Degree Relatedness
Authors: Vagaitseva K. V. , Lopatkina M. E. , Kolesnikov N. A. , Kharkov V. N. , Stepanov V. A.
Published: October 2024

The effects of the demographic history of mankind have led to the fact that the indigenous peoples of Dagestan and Siberia are inferior in terms of genetic diversity to the populations of Europe, which affects the level of identification informativeness of standard forensic autosomal markers in these populations. In our study, we evaluated the effectiveness of two standard sets of autosomal STRs (13 CODIS, 20 CODIS, Combined DNA Index System) for the genetic testing of parent-child relatedness in four highly inbred populations of the Russian Federation and the Russian population, using two types of reference frequencies. The results of the study confirmed the assumption that the level of identification informativity of standard autosomal markers in highly inbred populations of Siberia and Dagestan is lower than in the Russian population. The total information content of markers of the new CODIS standard exceeds the threshold values required in the order of the Ministry of Health and Social Development of the Russian Federation (No. 346n). At the same time, the probability of a false positive result increases with an increase in the inbreeding coefficient in the population.
The structure of individual variability of palynomorphological features of the genus Cestrum (Solanaceae). Typical form and deviations (morphoses)
Authors: Pozhidaev A. E. , Grigorjeva V. V. , Semyonov A. N.
Published: October 2024

The individual variability of morphological features of pollen of 55 species of the genus Cestrum (Solanaceae) was studied using light-optical and scanning electron microscopes. Typical pollen grains of the studied species are 3-colporate; the ora are equatorially elongated; in pollen of some species they form a continuous equatorial oral belt; the sculpture is psilate, striate, tuberculate, rugate. The scope and structure of variability of pollen morphological features (number and location of apertures and surface sculpture) in the studied samples of Cestrum species are described at the individual level and at the level of the genus as a whole. The variability of the studied pollen traits fits into continuous, regular, transitively ordered (taxon-nonspecific and rank-independent; over the boundaries of the relationship of taxa and homology of structures) geometric series. Pollen features are not informative enough to clarify the sectional division of the genus (all sections of the genus are palynomorphologically heterogeneous), although they can be used to diagnose individual species. The studied species cannot be divided into any distinct groups in accordance with the considered genus system — pollen signs overlap, their variability is parallel and transitive. The distinction of discrete features in a continuous variety is rather logical and requires a significant (from a theoretical point of view) reduction of the natural variety — the observed variability. Typical and atypical variability are combined into indivisible (continuous) and integral (ordered) series. Forms that may be typical in different taxa do not belong to different archetypes (body scheme) of different taxa, but together with atypical pollen forms are arranged in continuous and geometrically ordered transitive (parallel) morphological series. Indivisible (continuous) and holistic (ordered) series are combined typical and atypical variability in the forms of aperture arrangement. Different forms of apertures arrangement, which may be typical in different taxa, do not belong to different archetypes (the body scheme of different taxa), but, together with atypical forms of pollen, line up in continuous and geometrically ordered transitive (parallel) morphological series. The described properties of the structure of individual variability are considered from the perspective of a non-typological model of biological form (metamorphoses).
METHODS FOR PARAMETRIC IDENTIFICATION OF FRACTIONAL DIFFERENTIAL EQUATIONS
Authors: Slastushenskiy Y. V. , Reviznikov D. L. , Semenov S. A.
Published: October 2024

The issues of parametric identification of fractional differential models describing the processes of anomalous diffusion/heat conductivity are considered. The emphasis is on the option with a spatially localized initial condition, which corresponds to the experimental approach to determine diffusion characteristics. Methods are proposed for solving the identification problem that do not require multiple solutions of the direct problem. Testing of methods is carried out in a quasi-real experiment mode.
HOSPITAL SERVICE QUALITY AND CUSTOMER TRUST TOWARDS PATIENT SATISFACTION IN GENERATION MZ
Authors: Widyarini Maria , Mogi Maria Goretti Pracedis , Grahadian Kevin
Published: October 2024

According to Law Number 17 of 2023 of the Republic of Indonesia, health efforts, health resources, and health management are required to improve public health to the highest possible standard. Indonesian hospitals should provide patients with a degree of service excellence as supplied by medical, paramedical, and medical support staff. This research aims to understand, explore, and analyze based on empirically investigating the dimensions or attributes of service quality and evaluate the importance of variance attributes for Gen MZ patients at Hospital B. This quantitative study examines the relationship between service quality and brand trust (independent variable) towards patient satisfaction (dependent variable) in Gen MZ at Hospital B. This research was conducted from January to March 7, 2024; it involved 122 Generation MZ patients using non-probability purposive sampling to represent the population. Result shows that the similar levels of satisfaction and trust between Generations M and Z at Hospital B may be due to the hospital's standardized, high-quality services. This consistency ensures that both generations have comparable experiences. Additionally, Hospital B's effective use of technology, such as hospital apps and online medical information access, meets and exceeds the expectations of both groups.
PENGARUH PERENCANAAN, TRANSPARANSI DAN AKUNTABILITAS TERHADAP KINERJA PENGELOLAAN KEUANGAN DAERAH MELALUI PENGAWASAN SEBAGAI VARIABEL MODERASI
Authors: Afrianto Dedy , Sunardi Sunardi , Sisharini Nanik
Published: October 2024

Penelitian ini bertujuan untuk menganalisis Pengaruh Perencanaan, Transparansi Dan Akuntabilitas Terhadap Kinerja Pengelolaan Keuangan Daerah Melalui Pengawasan Sebagai Variabel Moderasi Pada  Pemerintah Kabupaten Ponorogo. Penelitian ini menggunakan metode deskriptif kuantitatif dengan jumlah sampel sebanyak 55 responden yaitu ASN yang mempunyai tugas sebagai pengelola keuangan pada seluruh Perangkat Daerah di lingkup Pemerintah Kabupaten Ponorogo . Dalam penentuan sampel,  peneliti menggunakan metode purphose sampling  yaitu  teknik pengumpulan data dengan memberi kuesioner pada responden dan dokumentasi. Metode analisis yang digunakan peneliti adalah dengan uji validitas dan reliabilitas, uji asumsi klasik, uji   f (simultan)  uji  R square  dan uji regresi linier berganda Moderated Regression Analysis (MRA). Hasil uji regresi linear berganda Moderated Regression Analysis (MRA) menunjukkan bahwa variabel perencanaan , transparansi dan Akuntabilitas secara bersama sama  berpengaruh signifikan terhadap kinerja pengelolaan keuangan daerah di Pemerintah Kabupaten Ponorogo . Secara parsial perencanaan dan Variabel transparansi berpengaruh negative signifikan terhadap kinerja pengelolaan keuangan daerah di Pemerintah Kabupaten Ponorogo . Sedangkan variabel akuntabilitas tidak berpengaruh terhadap kinerja pengelolaan keuangan daerah di Pemerintah Kabupaten Ponorogo . Hasil analisis pengujian interaksi moderasi menunjukkan bahwa variabel pengawasan mampu memperkuat pengaruh variabel perencanaan ,transparansi dan  akuntabilitas terhadap kinerja pengelolaan keuangan daerah di Pemerintah Kabupaten Ponorogo .
PENGARUH PROFITABILITAS, LIKUIDITAS DAN OPINI AUDITOR TERHADAP AUDIT REPORT LAG
Authors: Amanda Urai Tiara , Fauziah Tiya , Helmi Syarif M
Published: October 2024

Dengan dilakukannya penelitian ini diharapkan dapat menganalisis pengaruh faktor-faktor internal yang menyebabkan terlambatnya pelaporan audit untuk sector property yang tercatat pada Bursa Efek Indonesia (BEI). Terlambatnya pelaporan audit adalah proses dilakukannya audit yang diperlukan dalam penyelesaian audit, dengan pengukuran selisih antara saat laporan keuangan dilaporkan dan diberikannya opini audit. Dengan itu, pelaporan keuangan wajib dilaporkan dengan sebenar-benarnya untuk memberikan manfaat kepada pengguna. Peneliti akan menguji variabel profitabilitas, likuiditas, dan opini auditor. Terdapat 83 perusahaan yang telah terdaftar pada Bursa Efek Indonesia. Namun, terdapat 3 kriteria yang peneliti gunakan, yaitu perusahaan property pada BEI untuk tahun 2020-2022, perusahaan property yang menerbitkan opini auditor secara konsisten selama periode tersebut, dan perusahaan property yang mempublikasi laporan keuangan secara konsisten pada tahun tersebut. Jadi pada penelitian ini, peneliti menggunakan 56 perusahaan yang digunakan sebagai sampel yang terdaftar pada (BEI) dan perusahaan telah menyajikan laporan keuangan serta laporan audit selama periode 2020-2022 secara berturut-turut dan 168 data observasi yang dapat digunakan untuk penelitian. Pada penelitian ini, peneliti menggunakan data sekunder dan purposive sampling. Regresi linear berganda sebagai pengujian data dan menggunakan perangkat lunak Eviews 12. Output penelitian menyatakan profitabilitas dan likuiditas tidak mempengaruhi keterlambatan laporan audit. Namun, opini auditor memiliki pengaruh negatif terhadap keterlambatan laporan audit. Harapan untuk peneliti kedepan agar dapat memperbarui studi ini dengan memasukkan variabel tambahan atau menambah periode waktu penelitian.
PENGARUH PROFITABILITAS, LIKUIDITAS, OPINI AUDIT TAHUN SEBELUMNYA, OPINION SHOPPING TERHADAP PENERIMAAN OPINI AUDIT GOING CONCERN
Authors: Afiqah Nisa , Noviarty Helisa , Fahmi Muhammad
Published: October 2024

Penelitian ini dilakukan dengan harapan dapat menguji dan menganalisis faktor yang menyebabkan going concern audit opinion diberikan auditor kepada entitas sektor energy yang listing di Bursa Efek Indonesia. Penilaian kelangsungan hidup adalah pernyataan dari auditor guna menentukan adakah ketidakmampuan entitas dalam melanjutkan kelangsungan usahanya. Penelitian ini bertujuan untuk menguji dan menganalisis pengaruh profitabilitas, likuiditas, opini audit tahun sebelumnya dan opinion shopping terhadap penerimaan opini audit going concern. Perusahaan di sektor energy yang listing di Indonesia Stock Exchange periode 2020 - 2022 menjadi subjek penelitian ini. Penelitian ini menggunakan pendekatan kuantitatif dan tergolong penelitian kausal komparatif. Purposive sampling adalah metode yang digunakan, dan 59 perusahaan dikumpulkan untuk dijadikan sampel penelitian. Tiga kriteria yang ditentukan untuk pengambilan sampel yaitu, perusahaan energy yang listing di BEI selama 2020-2022, perusahaan energy yang delisting dari BEI selama 2020-2022, perusahaan energy telah mem-publish laporan keuangan yang diaudit selama 2020-2022. Perusahaan energy menerbitkan laporan keuangan yang diaudit satu tahun sebelum tahun pengamatan 2020-2022, yaitu tahun 2019Periode studi tiga tahun, yang berlangsung dari 2020 hingga 2022, menghasilkan 177 data pengamatan. Dengan menggunakan alat analisis Eviews 12, prosedur analisis data dilakukan dengan menggunakan analisis regresi logistik dan statistik deskriptif. Temuan hasil penelitian menunjukkan bahwa profitabilitas dan likuiditas memiliki pengaruh positive dan significant terhadap opini audit going concern. Opini audit tahun sebelumnya memiliki pengaruh negative dan significant terhadap opini audit going concern. Opinion shopping tidak memiliki pengaruh dan tidak significant terhadap opini audit going concern.
ASSESSING THE HUMAN DIMENSION OF DIGITAL LEADERSHIP TO SUCCESSFUL DIGITAL TRANSFORMATION
Authors: Intan Sarah Diba , Tjakraatmadja Jann
Published: October 2024

All industries are experiencing significant changes due to Industry 4.0 and the upcoming Industry 5.0. These advancements will greatly impact the industry globally over the next five years. Therefore, several companies are undergoing digital transformation. Successful digital transformation relies on various factors, with leadership being crucial for setting a vision and driving change. By undertaking digital transformation, companies ensure their leaders continuously develop essential digital leadership skills. According to the assessment at PT X a state-owned enterprise in Indonesia engaged in transportation and logistics, the results indicate a gap between employees' current digital leadership competencies and the required level. This study aims to improve digital leadership competency at PT X. Objectives include identifying existing training programs, evaluating digital leadership dimensions needing improvement, and determining necessary improvements. The study uses the Digital Leadership Scale by Haroon Abbu et al. (2022), with a quantitative design involving 124 respondents. Findings show that digital leadership is part of the leadership development program, tailored to job levels from junior managers to executive presidents. The lowest scores based on assessment are in skill acquisition and courage, indicating areas for improvement. This research provides insights into digital leadership and competency improvement, crucial for successful digital transformation.
ANALISIS SISTEM PENGELOLAAN PERSEDIAAN BERBASIS COSO STUDI KASUS PERUSAHAAN MANUFAKTUR DI INDONESIA
Authors: Putri Adisty Asmarani , Nursyamsiah Siti
Published: October 2024

Penelitian ini bertujuan untuk menganalisis penerapan sistem pengelolaan persediaan berbasis Committee of Sponsoring Organizations of the Treadway Commission pada perusahaan manufaktur di Indonesia. Metode penelitian yang digunakan dalam penelitian ini adalah kualitatif. Jenis pendekatan yang digunakan yaitu studi kasus. Data data yang dikumpulkan berdasarkan data primer dan sekunder. Data primer diperoleh melalui observasi dan wawancara terhadap 3 orang supervisor di department procurement. Data sekunder diperoleh melalui dokumen kerja perusahaan antara lain struktur organisasi, alur kerja dan laporan kerja. Responden dipilih berdasarkan teknik purposive sampling, dimana teknik ini berdasarkan pertimbangan tertentu searah dengan tujuan dari penelitian. Data yang diperoleh, di analisis menggunakan prosedur Committee of Sponsoring Organizations of the Treadway Commission (COSO) berupa lima langkah sistem pengendalian internal. Hasil penelitian berupa penilaian risiko dan upaya yang telah dilakukan pada operasional departemen perusahaan tersebut cukup efektif dan efisien serta rekomendasi sistem kerja manajemen baru dalam analisis Committee of Sponsoring Organizations of the Treadway Commission
The Effect of Learning Mathematics with Digital Platforms
Authors: Aviory Koryna , Setianingsih Dwi , Widiatmoko Fajar
Published: October 2024

Platform digital dapat digunakan sebagai strategi pembelajaran asinkron di kelas. Pembelajaran asinkron adalah pembelajaran dengan interaksi yang dilakukan secara fleksibel dan tidak harus dalam waktu yang bersamaan, misalnya menggunakan forum diskusi atau pembelajaran/tugas mandiri. Tujuan penelitian ini adalah untuk melihat apakah terdapat pengaruh pembelajaran matematika dengan platform digital terhadap hasil belajar matematika. Platform digital yang diamati terbatas pada Zoom dan WhatsApp Group. Jenis penelitian ini adalah eksperimen. Teknik pengambilan sampel adalah simple random sampling dengan jumlah 63 siswa. Analisis uji kesetimbangan menunjukkan bahwa kedua kelas memiliki kemampuan yang sama. Instrumen yang digunakan adalah tes. Hasil validitas menunjukkan bahwa instrumen tes dapat digunakan karena memiliki rentang indeks 0,667 – 1. Analisis data menggunakan statistik parametrik. Data mengikuti asumsi distribusi normal dan variansnya homogen. Simpulan penelitian menyatakan bahwa terdapat pengaruh yang berbeda antara kedua strategi pembelajaran. Dengan melihat rata-rata kedua kelas dapat dikatakan bahwa pembelajaran yang paling berpengaruh adalah pembelajaran dengan WhatsApp Group.
Digital platforms can be used as asynchronous learning strategies in the classroom. Asynchronous learning is learning with interaction that is carried out flexibly and does not have to be at the same time, for example using discussion forums or independent learning/assignment. The purpose of this research was to see whether there was an effect of learning mathematics with digital platforms on mathematics learning outcomes. The observed digital platforms are limited to Zoom and WhatsApp Group. This type of research is an experiment. The sampling technique was simple random sampling with a sample number of 63 students. The analysis of the equilibrium test shows that both classes have the same ability. The instrument used is a test. The results of the validity indicate that the test instrument can be used because it has an index range of 0.667 – 1. The data analysis uses parametric statistics. The data follows the assumption of a normal distribution and the variance is homogeneous. The conclusion of the study states that there are different effects between the two learning strategies. By looking at the average of the two classes it can be said that the most influential learning is learning with the WhatsApp Group.
The Relationship Between Computational Thinking Ability and Logical Mathematical Intelligence
Authors: Nurlaelah Elah , Usdiyana Dian , Fadilah Nisa
Published: October 2024

Artikel ini menyajikan hasil penelitian tentang keterkaitan antara kemampuan Computational Thinking siswa dan kecerdasan logis matematis. Hal ini dilakukan karena computational thinking sangat diperlukan dalam menumbuhkan kecerdasan logis matematis. Metode yang digunakan dalam artikel ini adalah literature review. Penulis melakukan pengkajian terhadap beberapa artikel terkait, kemudian memahami masing-masing isinya dan melakukan penarikan kesimpulan berdasarkan kesamaan antara indikator kemampuan computational thinking dan kecerdasan logis matematis. Hasil kajian terhadap beberapa artikel menunjukkan bahwa terdapat hubungan selaras antara kemampuan computational thinking dengan kecerdasan logis matematis. Seseorang dengan kemampuan computational thinking dalam proses pemecahan masalah akan berusaha merumuskan kembali atau merinci suatu masalah menjadi bagian yang lebih sederhana sehingga mudah untuk diselesaikan. Hal tersebut sangat erat hubungannya dengan tingkat kecerdasan logis matematis, karena seseorang dituntut akan ketelitian pengamatan, penilaian pemahaman, dan kemampuan memprediksi kejadian yang berurutan secara alami. Rekomandasi dari penelitian ini adalah perlunya kegiatan pelatihan untuk mempelajari atau mengkaji bagaimana menggunakan computational thinking dan kecerdasan logis-matematis sebagai alat yang efektif dalam proses belajar mengajar matematika
This article presents the findings of a study examining the relationship between students' computational thinking abilities and their logical mathematical intelligence. This exploration is warranted due to the critical role computational thinking plays in fostering logical mathematical intelligence. The methodology employed in this article is a literature review. The author systematically reviewed several pertinent articles, analyzing their contents and synthesizing conclusions based on the commonalities between the indicators of computational thinking abilities and logical mathematical intelligence. The results of the analysis indicate a positive correlation between computational thinking abilities and logical mathematical intelligence. Individuals with strong computational thinking skills tend to decompose complex problems into simpler, more manageable components, facilitating the problem-solving process. This aptitude is closely linked to logical mathematical intelligence, which requires individuals to be meticulous in their observations, assess their understanding, and predict events in a coherent and sequential manner. Based on the findings of this study, it is recommended that training programs be implemented to teach and enhance the use of computational thinking and logical-mathematical intelligence as effective tools in the mathematics teaching and learning process.
Enhancing Students’ Mathematical Critical Thinking Skills through Ethnomathematics Digital Book STEM-PjBL
Authors: Pramasdyasari Agnita Siska , Aini Sindi Nur , Setyawati Rina Dwi
Published: October 2024

Pembelajaran abad 21 menuntut siswa harus mampu berpikir kritis, kreatif, kolaboratif, dan berkomunikasi secara efektif. Akan tetapi, siswa SMP di Indonesia masih memiliki kemampuan berpikir kritis matematika yang relatif rendah. Penelitian ini bertujuan untuk mengembangkan  digital book yang menggunakan etnomatematika dan PjBL STEM untuk meningkatkan kemampuan berpikir kritis siswa. Penelitian ini melibatkan Research and Development (R&D) menggunakan model pengembangan ASSURE yang memiliki enam tahapan dilanjutkan dengan metode penelitian kuantitatif dengan teknik pengumpulan data melalui tes. Hasil dari penelitian ini menunjukkan validitas buku digital berbasis PjBL STEM dengan pendekatan etnomatematika untuk meningkatkan kemampuan berpikir kritis matematis siswa pada materi teorema Pythagoras dinyatakan valid. Berdasarkan penelitian ini, kemampuan berpikir kritis siswa SMP pada materi teorema Pythagoras dapat ditingkatkan dengan buku digital berbasis PjBL STEM dengan etnomatematika. Karena implementasi proyek STEM dan etnomatematika untuk meningkatkan pembelajaran, temuan penelitian ini juga bermanfaat bagi guru dan sekolah dalam menciptakan lingkungan belajar baru.
In the twenty-first century, students need to develop critical thinking, creativity, collaboration, and effective communication skills. However, junior high school students in Indonesia still exhibit relatively weak critical thinking abilities in mathematics. This study aims to create a digital book that integrates ethnomathematics with the PjBL STEM approach to enhance students' critical thinking skills. Using the ASSURE development model and quantitative methods, the research demonstrates that the STEM-based PjBL digital book, incorporating ethnomathematics and focusing on the Pythagorean theorem, effectively improves students' mathematical critical thinking abilities. Additionally, this approach can aid in the development of innovative learning environments in schools, benefiting both educators and students. Future research is recommended to explore in greater depth how digital book learning media and the STEM-PjBL approach based on ethnomathematics influence educational outcomes. Such investigations will provide a more nuanced understanding and help refine and enhance educational practices and results.
Geometry and Islamic Values: Validity of Teaching Materials Based on Modified Project-Based Learning Model
Authors: Yulia Putri , Nasution Eline Yanty Putri
Published: October 2024

Bahan ajar geometri yang ada saat ini kurang efektif dalam mendukung siswa dalam menemukan konten melalui tugas berbasis proyek ilmiah, juga tidak memasukkan nilai-nilai Islam ke dalam proses pembelajaran. Penelitian ini bertujuan untuk mengevaluasi validitas bahan ajar geometri berbasis model Project-Based Learning (PjBL) yang dimodifikasi dan diintegrasikan dengan nilai-nilai Islam. Penelitian ini menggunakan pendekatan Research and Development (R&D) dengan menggunakan model 4-D yang terdiri dari empat tahap yaitu mendefinisikan, merancang, mengembangkan, dan menyebarluaskan. Instrumen validasi yang digunakan adalah angket yang menilai integrasi media, konten, dan nilai-nilai Islam. Analisis validitas dilakukan dengan menghitung rata-rata skor yang diberikan oleh validator. Hasil penelitian menunjukkan bahwa materi dan media yang divalidasi oleh ahli pendidikan matematika memperoleh skor rata-rata 4,5 dengan kategori sangat valid. Selain itu, integrasi nilai-nilai keislaman memperoleh skor rata-rata 4,3 sehingga masuk dalam kategori valid. Berdasarkan temuan tersebut dapat disimpulkan bahwa bahan ajar geometri berbasis model PjBL yang dimodifikasi dan mengandung nilai-nilai Islam, valid dan layak digunakan.
The current geometry teaching materials do not effectively support students in discovering content through scientific project-based assignments, nor do they incorporate Islamic values into the learning process. This study aims to evaluate the validity of geometry teaching materials based on a modified Project-Based Learning (PjBL) model integrated with Islamic values. The research follows a Research and Development (R&D) approach using the 4-D model, consisting of four stages: define, design, develop, and disseminate. The validation instrument employed is a questionnaire, which assesses media, content, and Islamic value integration. The validity analysis was performed by calculating the average scores provided by the validators. The results indicate that the materials and media, as validated by mathematics education experts, achieved an average score of 4.5, categorizing them as highly valid. Additionally, the Islamic value integration received an average score of 4.3, placing it in the valid category. Based on these findings, it can be concluded that the geometry teaching materials, which are based on a modified PjBL model and incorporate Islamic values, are valid and suitable for use.
Improving Mathematical Creativity Through Self-Regulated Learning in a Problem-Based Learning Model Supported by GeoGebra
Authors: Ernita  , Isnarto  , Suyitno Amin
Published: October 2024

Creative thinking is a crucial skill in the 21st century. However, creative thinking abilities are still lacking in Indonesia, with a global creativity index of just 0.202, indicating very low level. This study seeks to evaluate the quality of GeoGebra-assisted Problem-Based Learning in enhancing students' creative thinking skills and to describe students' creative thinking abilities in relation to Self-Regulated Learning. The research method used is a mixed method. The research sample includes students from grades VIII D and VIII E at SMP Negeri 2 Ungaran. The subjects of this study are 6 students categorized by their level of Self-Regulated Learning. Quantitative data analysis involves t-tests and z-tests, qualitative data analysis involves data reduction, presentation, interpretation, and drawing conclusions. The study finds that GeoGebra-assisted Problem-Based Learning effectively enhances creative thinking skills. Students with high, medium, and low Self-Regulated Learning levels showed very good, good, and poor mathematical creative thinking abilities, respectively.
Berpikir kreatif merupakan kemampuan yang sangat diperlukan di abad 21. Akan tetapi kemampuan berpikir kreatif masih sangat kurang di Indonesia, ditunjukkan dengan indeks kreativitas global Indonesia yaitu 0,202 yang tergolong sangat rendah. Penelitian ini bertujuan untuk mengetahui kualitas Problem Based Learning berbantuan GeoGebra terhadap peningkatan kemampuan berpikir kreatif siswa dan mendeskripsikan kemampuan berpikir kreatif siswa berdasarkan Self-Regulated Learning. Metode penelitian yang digunakan yaitu mixed method. Sampel penelitian yaitu siswa kelas VIII D dan VIII E SMP Negeri 2 Ungaran. Subjek penelitian yaitu 6 siswa berdasarkan tingkat Self-Regulated Learning. Analisis data kuantitatif menggunakan uji t dan uji z. Analisis data kualitatif mencakup penyederhanaan data, penyajian, interpretasi, dan penarikan kesimpulan. Hasil penelitian mengindikasikan bahwa Problem Based Learning yang didukung GeoGebra berkualitas dalam meningkatkan kemampuan berpikir kreatif serta kemampuan berpikir kreatif matematis siswa dengan tingkat self-regulated learning tinggi, sedang, dan rendah, masing-masing dengan hasil sangat baik, baik, dan kurang.
Merdeka Curriculum: How the Profile of Planning for Mathematics Learning by Teachers?
Authors: Krisma Dita Aldila , Muqtada Moh. Rikza , Khasanah Fitria Uswatun
Published: October 2024

Pebedaan fasilitas yang diterima satuan pendidikan terkait implementasi Kurikulum Merdeka berpengaruh terhadap perbedaan tingkat pemahaman guru antar sekolah. Tujuan penelitian ini adalah mendeskripsikan perencanaan pembelajaran matematika dalam Kurikulum Merdeka di tingkat SMP di Kota Magelang. Urgensi penelitian ini adalah perlunya gambaran implementasi pembelajaran matematika dalam Kurikulum Merdeka di tingkat satuan pendidikan dari segi perencanaan untuk bahan evaluasi dan inspirasi pembelajaran matematika dalam implementasi Kurikulum Merdeka. Penelitian ini merupakan penelitian kualitatif dengan metode deskriptif. Penelitian dilaksanakan di tujuh SMP negeri di Kota Magelang. Teknik utama pengambilan data melalui wawancara dengan satu guru matematika pengampu kelas 7 di tiap sekolah. Teknik analisis data yang digunakan meliputi pencatatan data hasil wawancara dan dokumentasi, pengkodean data, olah data, analisis data, dan interpretasi data. Hasil penelitian mendeskripsikan perencanaan pembelajaran matematika dalam Kurikulum Merdeka tingkat SMP di Kota Magelang meliputi CP, TP, ATP, modul ajar, dan, asesmen. Rata-rata, guru melakukan modifikasi dalam penyusunan perangkat ajar disesuaikan dengan kebutuhan peserta didik sekolah masing-masing.
The differences in facilities received by educational units related to the implementation of the Independent Curriculum influence differences in the level of teacher understanding between schools. The purpose of this study is to describe mathematics learning planning in the Merdeka Curriculum at the junior high school level in Magelang City. The urgency of this research is the need for a description or description of the implementation of mathematics learning in the Merdeka Curriculum at the education unit level in terms of planning so that it can be used as an evaluation and inspiration for mathematics learning in implementing the Merdeka Curriculum. This research is a qualitative research with descriptive method. This research was conducted in seven public junior high schools in Magelang City with the main technique of data collection through interviews with one 7th grade math teacher in each school. The data analysis technique used in this research includes recording data from interviews and documentation, then coding data, processing data, analyzing data, interpreting data. The results of this study describe mathematics learning planning in the Merdeka Curriculum at the junior high school level in Magelang City including CP, TP, ATP, teaching modules, and, assessment. On average, teachers modify existing documents and adapt them to the needs of students in their respective schools.
Effect of Internal Technological Defects and Loading Waveform on Structural Composite Fatigue Life
Authors: Lykova Anastasia , Lobanov Dmitriy , Pankov Alexander , Ugolnikov Mikhail
Published: October 2024

This paper explores the effect of internal technological defects on the fatigue life of carbon fiber reinforced plastic (CFRP) under simple loading waveforms. One conducted experiments on CFRP specimens with embedded artificial defects, including delamination’s (circular dry-spot) and wrinkling. Following quasi-static tests, one developed a fatigue testing program using triangular and sine waveforms. The findings indicate that these simple waveforms do not significantly affect the fatigue resistance of defect-free CFRP or CFRP with internal technological defects. The presence of the wrinkling defect significantly diminishes the fatigue resistance of CFRP. However, constructing fatigue life curves in relative terms reveals that the reduction in fatigue properties is directly related to a decrease in strength properties. In the case of delamination (dry-spot) defects, a reduction in fatigue life by approximately 2.5 times was observed across the tested range.
Grain quality of new varieties of spring wheat in the Northern Trans-Urals
Authors: Belkina R , Kazak A , Gubanova V
Published: October 2024

Abstract. The production of high-quality food wheat grains depends to a large extent on the quality potential of the cultivated varieties and the conditions that ensure its implementation. Studies have identified quality-resistant varieties and factors that ensure an optimal combination of yield and grain quality. The purpose of the research is to consider the possibilities of new varieties of spring wheat to form the technological properties of grain in the northern forest-steppe of the Tyumen region. Methods. Studies were carried out in 2021 and 2022 in the northern forest-steppe zone of the Tyumen region at the Ishim state section. The soil is leached chernozem. The predecessor in the experience is pure steam. The technological properties of wheat grain were assessed by the West Siberian Interregional Center for Comprehensive Quality Assessment of the Tested Varieties (Barnaul). The main criteria for assessing wheat varieties are taken as the gluten content in flour, the strength of flour according to the alveograph and the liquefaction of the test according to the farinograph, these indicators in local conditions are often limiting when assessing varieties according to bakery strength. According to the results of studies, it was established that the indicator “gluten content in flour” in the studied varieties significantly depended on meteorological conditions. For example, in 2022, with a higher degree of moisture and a lower degree of heat compared to 2021, in the predominant part of the varieties (80 %), the amount of gluten in the flour was lower than the standards for wheat filler. At the same time, the following varieties showed high opportunities to provide flour with the amount of gluten: Tyumenskaya 25, Agronomicheskaya 5, Baganochka, Dorada, Tyumenskaya 29, Varden. Varieties stood out – their indicators were at the level of requirements for strong wheat: Baganochka, Ishimskaya 12 and Lenta 45. In terms of “dough liquefaction”, a significant part of the varieties corresponded to the class “wheat-filler”. At the level of strong wheat were indicators in the varieties Ishimskaya 12, Zagora Novosibirsk, Nitsa. Scientific novelty: In the conditions of the northern forest-steppe of the Tyumen region, new scientific information has been obtained on the formation by new varieties of spring soft wheat of the state test of technological indicators characterizing the baking power of flour. The highest gluten content in flour of 70% yield was distinguished by the varieties Agronomic 5, Dorada, Varden, Baganochka, Ishimskaya 12, and Lenta varieties were characterized by high indicators of the physical properties of the test on the alveograph; Ishimskaya 12 on the farinograph, Zagora Novosibirsk, Nice.
Optimization of the pasture load on the steppe ecosystems of the arid territory of the Stavropol Territory
Authors: Lapenko Nina , Khonina Olesya , Oganyan Lusine
Published: October 2024

Abstract. The article considers the issues of rational use of grass of steppe phytocenoses in their pasture use; the correspondence of pasture capacity and the number of grazed livestock. The purpose of the study is to assess the current state of steppe communities used as pasture lands for grazing existing livestock of large and small cattle and to propose ways to optimize pasture livestock breeding in the arid territory of the Stavropol Territory. Methods. A statistical analysis of the number of cattle and small cattle in the study area was carried out. The expeditionary study of natural herbages was carried out in 2021–2023 on accounting sites (100 m2) according to the requirements of methods generally accepted in phytocenology. The results of the study. Statistical analysis showed that by the beginning of 2000, the number of sheep in the territory under consideration had decreased by 2.6 times, and cattle by 1.6 times. In subsequent years, with the gradual recovery of the livestock industry from the crisis, a steady increase in the number of small and large cattle was noted in this zone to 1306.1 and 74.8 thousand heads, respectively. It was revealed that the vegetation of natural lands used in pasture farming in the arid zone of the Stavropol Territory is secondary, stunted and monotonous in terms of flora composition and plant associations. The capacity of the pasture lands does not correspond to the feed needs of the grazed livestock. At the moment, the shortage of pasture feed is 323.7 thousand tons of feed units. On such pasture lands, animals do not receive food in sufficient quantities. It is recommended to optimize pasture management by limiting the pasture load and bringing the number of grazed livestock in line with the feed capacity of pasture lands. This will help to provide the existing livestock with food that meets their regulatory needs. Scientific novelty. New data have been obtained on the current state of steppe communities in the arid territory of the Stavropol Territory and the correspondence of the number of grazed livestock to the pasture capacity.
Influence of low doses of ionizing radiation during in vitro irradiation on blood parameters
Authors: Fedotova Arina , Turitsyna Evgeniya
Published: October 2024

Abstract. The purpose is the determination of the degree of influence of small absorbed doses of ionizing radiation on biochemical and hematological parameters during irradiation of peripheral blood samples of cattle in vitro. For the work, blood samples were taken from lactating cows kept under the influence of the background absorbed dose in the Krasnoyarsk Territory, followed by in vitro irradiation at doses of 5, 50, 500 mGy. Methods. Peripheral blood was taken from blood vessels from the tail vein into vacuum tubes with a coagulation activator, in vitro irradiation of samples was carried out on an installation equipped with a Cs-137 source, biochemical studies of blood serum were carried out using a PE-5400UF spectrophotometer. Hematological blood parameters were determined according to generally accepted methods. Results. Ionizing radiation in vitro in doses of 5 mGy, 50 mGy and 500 mGy of peripheral blood samples of cattle affects hematological parameters in different directions, which is characterized by wave-like fluctuations in hemoglobin values, a decrease in the content of erythrocytes and a decrease in the erythrocyte sedimentation rate. It was found that a single irradiation of peripheral blood samples of cows at a dose of 5 mGy reduced the concentration of beta-globulins and creatinine and did not affect the content of total protein and protein fractions. When exposed to ionizing radiation at a dose of 50 mGy, the content of total protein, the level of beta-globulins, creatinine decreased in blood samples, and the content of albumins and alpha-, gamma-globulins did not change. When irradiated at a dose of 500 mGy, the relative content of alpha-globulins, the concentration of ALT and AST decreased, the content of creatinine, total protein, albumins and beta-, gamma-globulins did not change. The stability of alkaline phosphatase, albumins and gamma globulins to ionizing effects at doses of 5 mGy, 50 mGy and 500 mGy has been established. Scientific novelty. The linear dependence of the concentration of alpha-globulins, AST and ALT on the absorbed dose was revealed, the numerical values of the approximation coefficients describing the decrease in concentration and biochemical parameters were determined. The inverse direct linear relationship between creatinine stability and absorbed dose has been established. Practical significance is the established digital values of the approximation coefficients of alpha globulins, AST and ALT can be used in the reconstruction of radiation dose values in the range of 5–50 mGy.
Modern approaches to managing the sustainable development of agricultural enterprises in the context of globalization
Authors: Sulimin Vladimir , Shvedov Vladislav Vital'evich , Larionova Nadezhda Pavlovna
Published: October 2024

Abstract. The agricultural sector faces challenges exacerbated by global trends such as climate change, market fluctuations and increased international competition. These factors require adaptation and implementation of new technologies to minimize the negative impact on yields and production stability. The importance of sustainable development of the agricultural sector is due to its role in ensuring food security and environmental stability. This requires management flexibility, innovation and collaboration with local communities and government to ensure sustainable development and socio-economic well-being. The purpose of this article is to analyze modern approaches to managing the sustainable development of agricultural enterprises, as well as assessing their effectiveness in the context of globalization. Methods. The article uses methods of analysis of scientific literature, comparative analysis, as well as case studies from various countries. This made it possible to generalize the experience of applying various strategies and practices for managing sustainable development. Scientific novelty lies in the development and application of a multidisciplinary methodological framework that integrates economic, environmental and social aspects to assess the effectiveness of existing management models in the agricultural sector in the context of globalization. An integrated approach includes analysis of indicators such as enterprise profitability, level of environmental impact and degree of social responsibility. Results. The main results are to identify the most effective modern approaches to managing sustainable development, which take into account the specifics of the agricultural sector and global economic trends. The article concludes that the integration of innovative technologies, increasing environmental responsibility and strengthening international cooperation are key factors for successfully managing the sustainable development of agricultural enterprises in modern conditions.
Industrial Society in Discussion
Authors: Zuzánek Jiří
Published: October 2024

Today, few people doubt the necessity of a qualified and substantive dialogue between Marxists and representatives of non-Marxist schools of thought. There is no dispute that the isolation, characteristic of the previous period, the lack of possibility of direct confrontation led to stagnation of thought and argumentation. At the same time, however, the fact is sometimes overlooked that the dialogue that is being called for is already taking place, that we have a number of concrete results, which would be worth thinking about and perhaps even drawing some conclusions from.
This is evidenced, for example, by the publication published by the West German Constitution for the Education of Citizens in the Rhineland-Palatinate under the common name Industrial Society in the East and the West. On the current topic - industrial society and its development tendencies - I have my say: Nestor of West German sociology Hans Freyer, political scientist Lothar Bossle of the University of Mohe and PhDr. Jindrich Filipec (Institute of Philosophy CSAV). As the editors note in the introduction, this is the first discussion of a similar type, already with a representative of a socialist state.