bluuebunny/crossref_metadata_2025_split huggingface dataset:
Justification and static calculation of the adaptive moving counterweight of a single-bucket excavator
Authors: Rashkivskyi Vladimir , Proskurin Oleksyi 
Published: December 2023

The results of an analytical study of the effect of loads on the equipment of a single-bucket excavator are presented, and an analysis of previous studies is performed.
The work highlights that the work process of a universal single-bucket excavator is a cycle of performing operations - digging and transporting soil.
Universal excavators can perform work above and below the level of their parking lot with the working equipment of forward and reverse shovels or with the help of additional interchangeable equipment.
During the work process, static and dynamic loads occur on the machine and mechanisms, which affect the stability of the machine and safety on the work site.
To increase the stability of single-bucket universal excavators when working on an inclined plane and increase the efficiency of the machine in quarries, construction sites, when disassembling rubble after man-made disasters, accidents, and military operations, it is necessary to create a balancing mechanism of automatic action.
The calculation of the stability of a universal single-bucket excavator with an adaptive movable counterweight with working equipment forward and reverse shovel in the basic calculation positions, which are performed when calculating universal single-bucket excavators, has been developed. For an excavator equipped with a reverse shovel, the calculation is made for two positions. Calculation of the stability of an excavator with straight shovel equipment, performed for four positions.
Due to the adaptive movable counterweight, an additional, adjustable, arm appears, which automatically balances the system when necessary.
Thanks to the automatic system, the single-bucket excavator can work and move on a more inclined plane, the moving counterweight will balance the machine itself, and it is also possible to increase the holding moment and prevent the excavator from tipping over.
The expediency of using an adaptive moving counterweight for single-bucket excavators is described. Examples of the use of a movable counterweight in other machines are given. The analysis of related studies was performed and the expediency of using an adaptive moving counterweight in them was substantiated. Preliminary studies in the development of a movable counterweight for single-bucket excavators are provided. The calculation of the stability of a single-bucket excavator with an adaptive movable counterweight in the main design positions has been developed.
Innovative ways to improve machines for preliminary work given the needs of the modern construction industry
Authors: Prystailo Mykola , Balaka Maksym , Mozharivskyi Valentyn , Drachuk Volodymyr , Honta Ihor 
Published: December 2023

The bulldozer-ripper is the main machine during preliminary work. The creation of high-performance machines is carried out in two directions: the production of fundamentally new working elements and machines based on the use of fundamental scientific achievements and the improvement of existing working elements, and traditional type machines that are in operation.
The creation of working elements for ripper-picks is a perspective development direction of machines designed for ripping frozen and hard soils. They would make it possible to significantly increase the productivity of ripping work through the rational use of the base machine traction force. We applied the superposition principle of the impact on the working medium of several factors concurrently for this, such as static and dynamic loads, through the energy accumulation and its subsequent use to create a high-speed power impulse on the cutting edge to ensure the preliminary formation of the compressed zone in the soil massif. This will lead to the power intensity reduction of the static load on the soil element separation.
Long Covid, the Gut, and Autoimmune Skin Diseases: A Novel Therapeutic Approach
Authors: Chambers Patrick 
Published: December 2023

The dermatological manifestations of Long Covid (LC) have languished in the shadows of chronic fatigue and brain fog. Yet they are all linked by gut dysbiosis and the cytokine triad of TNF-α, IL-1β, and IL-6. The gut microbiome common not only to LC, psoriasis, AA, and vitiligo but also to neurodegenerative disease has been recently described. This gut microbiome induces an altered tryptophan metabolism linked to autoimmune disease. SARS CoV2 invades enterochromaffin cells rich in ACE2 receptors and curtails absorption of the essential amino acid tryptophan and subsequent synthesis of serotonin and melatonin. This review suggests that an etiologic prebiotic (d-mannose)/probiotic (lactobacilli, bifidobacteria)/postbiotic (butyrate) approach to autoimmune skin disease that improves intestinal barrier integrity and that suppresses the triad of TNF-α, IL-6, and IL-1β may enhance or even eliminate the traditional immunotherapy of targeted monoclonal antibodies, Janus kinase inhibitors, and steroids. Health benefits of this approach extend well beyond suppression of autoimmune skin disease. Societal benefits include relief to those most affected - women (LC), especially of color (AA, psoriasis, vitiligo).
Digital educational environment: the methodological aspect of launching innovations
Authors: Noskova T. N. 
Published: December 2023

The postnonclassical methodology of environment-oriented learning is based on the synthesis of informatics, psychology and pedagogy. The pedagogical constructs of the digital learning environment are three types of digital pedagogical resources: information, communication, and management of learning and cognitive activities.The interdisciplinary approach allowed us to define a digital learning system functioning in an educational environment enriched with a digital part. The digital learning system includes the subjects of the educational process (teachers and learners) as well as new objects functioning on a digital platform: three types of interrelated pedagogical resources. Under certain conditions, the system acts as an integrity and fulfills the educational function.The value of the article lies in the substantiation of the necessity to change connections in the digital learning system in order to achieve innovative effects. It is substantiated that the necessary condition for the manifestation of innovative effects is the actualization of new connections and relations between the elements of the highlighted system. The profound changes in the digital learning system require a radical restructuring of the links and relations in accordance with the post-non-classical pedagogical methodology. For this purpose, in accordance with the first fundamental law of cybernetics, it is necessary to increase the diversity of the process control system. Such diversity can be achieved by increasing the freedom of educational actions of students not only by expanding the spatial and temporal framework of activity but also by the ability to choose the depth, the functionality of problem solving, the situation of its solution through a variety of information and communication actions in the digital environment. The expansion of the space of educational choice and the responsibility associated with it contributes to a conscious independence in learning, student’s transition from the position of the object of control by the teacher to the subject of co-management, self-management of learning activities.The system-forming factor of digital transformation of activity is defined as setting the goals of educational activity associated with the adoption of new values, both terminal and instrumental. The emergence of the third digital divide, preventing the achievement of innovative effects in the developing educational environment, is substantiated.The article is addressed to university teachers oriented to achieve new results of professional training in the use of digital environment. The presented scientific approaches are new for domestic and foreign practice.
Principal Raudhatul Athfal's Participatory Behavior Practices in Implementing the Independent Curriculum in Indonesia
Authors: Wiyani Novan Ardy , Mulyani Novi , Alawee Samaeng Wan 
Published: December 2023

This research aims to describe and analyze the participatory behavioral practices of head Raudhatul Athfal in implementing the independent curriculum. This research uses a qualitative approach with a phenomenological type of research. Data was collected using interview, observation and documentation techniques. The data that has been collected is then analyzed using the Miles and Huberman model data analysis technique, which consists of data reduction, data display and verification. The research results show that the practice of participatory behavior towards teachers in implementing the independent curriculum and religious moderation at Raudhatul Athfal (RA) Nurul Dzikri is carried out through the following three efforts: (1) Involving teachers in making decisions related to the implementation of the independent curriculum; (2) Involving teachers in exercising self-control over their performance in implementing the independent curriculum and giving autonomy to teachers to work to complete their tasks and (3) Involving teachers in controlling leadership practices in implementing the independent curriculum. These three teacher involvements have positioned teachers as designers and primary implementers in implementing the independent curriculum. It gives them broad autonomy to manage the independent curriculum in the classroom. The involvement of teachers in making decisions related to the implementation of the independent curriculum, the involvement of teachers in controlling themselves and controlling the leadership of the school principal in implementing the independent curriculum, as well as their full authority to work following their ideas and creations make teacher performance in implementing the independent curriculum focused, organized and well managed by the school principal.
RANCANG BANGUN SISTEM INFORMASI PEMASARAN PRODUK UNGGULAN BAGI KELOMPOK USAHA KERAJINAN KABUPATEN PRINGSEWU LAMPUNG
Authors: Yunita Hilda Dwi , Zuhri Khozainuz , Yuniarthe Yodhi 
Published: December 2023

Kabupaten Pringsewu merupakan satu dari 15 Kabupaten Kota yang berada di Provinsi Lampung dengan Luas wilayah 625 km2. Disana banyak kelompok-kelompok usaha yang hampir penduduknya menjual hasil industri kerajinan atau produk unggulan mereka seperti Kerajinan anyaman bambu, Kerajinan Tapis, Kerajinan Batik, Kerajinan hasil tanah liat, usaha makanan ringan, industri batu bata dan genteng. Tetapi proses pemasaran atau penjualannya masih dilakukan secara konvensional yaitu penjualan hanya bisa dilakukan pada wilayah itu saja dikarenakan terbatasnya wilayah area promosi atau pemasaran selain itu pembelipun harus datang langsung ke tempat transaksi atau penjual. Tidak maksimalnya pemasaran suatu produk dapat mengakibatkan tinggi rendahnya suatu pendapatan atau penghasilan dari kelompok usaha tersebut. Semua hal itu dikarenakan belum adanya media yang dapat digunakan untuk melakukan pemasaran secara online tanpa dibatasi oleh wilayah pemasaran dan waktu pemasarannya.Tujuan dari penelitian ini adalahmerancang sebuah sistem informasi pemasaran atau penjualan berupa aplikasi penjualan berbasis online (website) untuk meningkatkan penjualan produk unggulan terutama hasil kerajinan anyaman bambu, kerajinan tapis, batik dan usaha makanan ringan yang dihasilkan oleh kelompok usaha yang ada di Kabupaten Pringsewu.
Strategi Guru Pendidikan Agama Islam dalam Mengembangkan Public Speaking pada Peserta Didik
Authors: Dewi Ratna 
Published: December 2023

Pendidik adalah salah satu komponen dalam proses belajar mengajar yang ikut berperan dalam usaha pembentukan sumber daya manusia yang berpotensi di bidang tertentu. Menjadi seorang guru bukanlah pekerjaan yang mudah, terkadang dalam pembelajaran banyak hal yang harus dipersiapkan dan harus dibina, guna untuk mengembangkan pembelajaran yang ada. Namun hal yang menjadi permasalahan yang terjadi di MA An-Najah Payabenua diperlukan strategi guru pendidikan agama Islam dalam mengembangkan public speaking karena masih kurang dorongan strategi guru apa yang menjadikan kesadaran dan pemahaman bagi peserta didik. Adapun tujuannya dalam mengembangkan kemampuan public speaking bisa menjadi sarana mengembangkan kepercayaan diri peserta didik dalam melakukan public speaking dengan baik sehingga bisa melatih peserta didik dalam berbicara di depan umum baik di sekolah maupun diluar sekolah.
Jenis penelitian ini menggunakan penelitian kualitatif dengan pendekatan deskriptif yakni penelitian yang memandang objek sebagai sesuatu yang dinamis,dan mendeskkripsikan suatu fenomena apa adanya. Peneliti mengumpulkan data melalui metode wawancara, observasi dan juga dokumentasi serta dalam Teknik analisis data peneliti menggunakan pengumpulan data, reduksi data, penyajian data, dan penarikan kesimpulan.
Hasil penelitian ini menunjukan bahwa: strategi guru pendidikan agama Islam mengembangkan Public Speaking di MA An-Najah Payabenua. yaitu penerapan pada aspek visual, penerapan pada aspek vocal, penerapan pada aspek verbal, dan melatih dan memberi motivasi kepada peserta didik, memberikan kesempatan kepada peserta didik untuk bisa mengikuti diskusi dan ceramah di depan kelas, serta memberikan umpan balik dalam pemberian materi, rasa berani peserta didik untuk tampil hingga aktif merespon guru terhadap pembelajaran yang telah disampaikan. Kemudian faktor pendukung mengembangkan kemampuan public speaking yaitu: siswa sudah menguasai bahasa Indonesia dengan baik, siswa sudah biasa melakukan kerja kelompok dan hasilnya dipresentasikan di depan kelas serta sering mengikuti lomba pidato, baca puisi, story telling, dan ceramah agama. Jadi strategi yang dipakai guru dalam proses pembelajaran pada public speaking kepada peserta didik dari aspek keaktifan peserta didik sudah sangat meningkat dan dapat dikatakan sangat mempengaruhi keefektifan dan keberhasilan pembelajaran.
Peran Orang Tua Tunggal Dalam Membimbing Anak Usia Remaja Di Desa Kace
Authors: Putra Utomo Mandala 
Published: December 2023

Penelitian ini di latar belakangi oleh keluarga orang tua tunggal yang berada di Desa Kace yang masih banyak mengalami permasalahan mengenai pendidikan dan bimbingan yang kurang tepat dalam memberikan bimbingan dan perhatian. Pendidikan di dalam keluarga terhadap anak mereka yang dipengaruhi beberapa faktor dan pola yang tidak tepat dalam membimbing dan mendidik pada anak usia remaja. Dari keluarga yang sudah di observasi dan wawancara peneliti menemukan masalah tentang tingkat keberhasilan orang tua dalam mendidik dan membimbing anak. penelitian ini dilakukan di Desa Kace Kecamatan Mendo Barat Kabupaten Bangka Belitung. Metode penelitian ini menggunakan penelitian deskripstif kualitatif, merupakan penelitian yang berkaitan langsung dengan memberikan gambaran secara detail sesuai dengan fakta yang ada dilapangan secara rinci. Tekhnik pengumpulan data yang dilakukan melalui observasi, wawancara, dan dokumentasi.
Kesimpulan dari penelitian ini menunjukan bahwa: (1) peran orang tua tunggal dalam membimbing anak usia remaja meliputi nilai aqidah agar mereka mempunyai keyakinan yang kuat dalam beribadah masih tidak optimal, nilai akhlak untuk membiasakan dan mengajarkan anak dengan etika dan akhlak juga kurang terbina dengan baik, nilai ibadah selalu mengajarkan anak untuk melakukan ibadah shalat karena shalat adalah tiang agama juga masih jauh dari kata baik (2) Pola orang tua tunggal dalam membimbing anak usia remaja di desa kace secara garis besar meliputi empat pola yaitu, otoritatif, otoritarian, permisif, dan uninvolved.
Studi Deskriptif Penggunaan Bahan Ajar IPA dengan Pendekatan STEAM untuk Meningkatkan Literasi Sains Mahasiswa S-2 Pendidikan Dasar
Authors: Winarni Endang Widi , Koto Irwan , Yusnia  , Ventri  , Putri  
Published: December 2023

Penelitian ini bertujuan untuk mendeskripsikan: (1) keterlaksanaan pembelajaran menggunakan bahan ajar IPA dengan pendekatan STEAM dan (2) profil kemampuan literasi sains. Penelitian kualitatif ini melalui observasi keterlaksanaan pembelajaran menggunakan bahan ajar IPA dengan STEAM dan kemampuan literasi sains mahasiwa. Instrumen penelitian yang digunakan adalah observasi dan tes. Instrumen observasi aktivitas mahasiswa menggunakan indikator: (1) Pemahaman materi yang disajikan dalam bahan ajar secara individu ; (2) Tugas kelompok berdiskusi materi diperkuat dengan hasil akses link video pembelajaran; dan (3) Kemampuan mahasiwa baik secara individual maupun kelompok dalam menyelesaikan proyek. Tes digunakan untuk mengumpulkan data kemampuan literasi sains mahasiswa. Teknik analisis data yang digunakan dalam penelitian ini adalah analisis deskriptif. Simpulan (1) Keterlaksanaan pembelajaran menggunakan bahan ajar IPA dengan pendekatan STEAM menunjukkan bahwa: (a) pencapaian kategori rendah tidak ditemukan; (b) pencapaian kategori sedang mencapai jumlah tertinggi pada indikator ketiga, yakni kemampuan mahasiwa dalam menyelesaikan proyek baik secara individual maupun kelompok. Dan (c) pencapaian kategori tinggi mencapai jumlah paling besar pada indikator pertama, yakni pemahaman materi yang disajikan dalam bahan ajar secara individu. (2) Profil kemampuan literasi sains mahasiswa aspek konten dan konteks pada: (a) keseluruhan materi ajar mencapai skor rata-rata sebesar 84,98; (b) skor rata-rata paling tinggi pada materi ajar sistem pencernaan makanan yakni sebesar 86,43 dan (c) skor rata-rata paling rendah pada materi ajar sistem pernafasan yakni sebesar 83,04.

Kata kunci: Bahan Ajar IPA, pendekatan STEAM, dan literasi sains.
Analisis Kesulitan Belajar Matematika Kelas 2 SD Muhammadiyah 3 Assalaam
Authors: Pramiswari Elok Dara , Suwandayani Beti Istanti , Deviana Tyas 
Published: December 2023

In order to prepare students to be able to apply mathematics and mathematical thinking patterns in everyday life and in studying various sciences at school, difficulties in understanding material in mathematics subjects experienced by students, especially in elementary schools, need to be addressed immediately. This research aims to analyze the difficulties experienced by grade 2 students at SD Muhammadiyah 3 Assalaam. This research is a type of descriptive research with a qualitative approach, the data collection techniques used are observation, interviews and documentation. Data validation techniques use technical triangulation, source triangulation and time triangulation. The research was carried out in class 2 of SD Muhammadiyah 3 Assalaam, Blimbing District, Malang City, East Java. The results of the research show that mathematics is a subject that is considered difficult by the majority of grade 2 students at Muhammadiyah Assalaam Elementary School, especially in the multiplication operation material. This is caused by various factors originating from internal and external factors.
Pengaruh Peran Penyuluh terhadap Pengetahuan Petani Kopi tentang SOP Budidaya Kopi Organik
Authors: Muntasiroh Ima , Gayatri Siwi , Prayoga Kadhung 
Published: December 2023

ENGLISHAgricultural instructors have a role as facilitators, educators, motivators, and communicators in farming for farmers to direct and improve their welfare. The role of agricultural instructors was to influence farmers to change their knowledge, skills, and attitudes. The research aimed to analyze the influence of the role of agricultural instructors on coffee farmers' knowledge of SOPs for organic coffee cultivation. The research was conducted in February-April 2023. The research used a quantitative-descriptive method. The location was determined purposively. The sampling used quota sampling, with a total sample of 143. The data were collected by using interviews and observation. The analysis used multiple linear regression OLSs. The results showed that farmers' knowledge of SOP for organic coffee cultivation obtained a percentage of 64%, which was in the high category. The role of agricultural instructors as facilitators, educators, motivators, and communicators obtained percentages of 66%, 64%, 66%, and 71%, which were in the high category. The results of the regression analysis partially stated that the role of agriculture extension workers as educators and communicators had an increasing effect on farmers' knowledge about SOPs for organic coffee cultivation. Simultaneously, the role of agricultural instructors affects farmers' knowledge about SOPs for organic coffee cultivation. INDONESIAPenyuluh memiliki peran sebagai fasilitator, edukator, motivator, dan komunikator dalam kegiatan usahatani untuk mengubah petani ke arah yang lebih baik dan mensejahterakan petani. Peran penyuluh memiliki pengaruh pada pengetahuan, ketrampilan, dan sikap petani. Tujuan penelitian adalah menganalisis pengaruh peran penyuluh terhadap pengetahuan petani kopi tentang SOP budidaya kopi organik. Penelitian dilakukan pada bulan Februari-April 2023. Metode penelitian yang digunakan adalah deskriptif kuantitatif. Penentuan lokasi dilakukan secara purposive. Metode pengambilan sampel yang digunakan adalah quota sampling, dengan jumlah sampel 143. Metode pengumpulan data melalui wawancara dan observasi. Analisis data menggunakan analisis Regresi Liniear Berganda OLS menggunakan Microsoft Excel dan aplikasi SPSS 26. Hasil penelitian menunjukkan pengetahuan petani tentang SOP budidaya kopi organik memperoleh persentase 64% yang termasuk kategori tinggi. Peran penyuluh sebagai fasilitator, edukator, motivator, dan komunikator diperoleh persentase 66%, 64%, 66%, dan 71% yang termasuk kategori tinggi. Hasil analisis regresi menyatakan secara parsial peran penyuluh sebagai edukator dan komunikator berpengaruh terhadap peningkatan pengetahuan petani tentang SOP budidaya kopi organik. Secara simultan peran penyuluh berpengaruh terhadap pengetahuan petani tentang SOP budidaya kopi organik.
Detailed investigation and analysis of the dynamic evolutionary process of rainstorm debris flows in mountain settlements: a case study of Xiangbizui Gully
Authors: Cai Jiajun , Huang Wenjie , Yang Quanzhong 
Published: December 2023

Short-term heavy rainfall often causes large-scale rainstorm debris flows in mountainous areas of Southwest China. Aiming to investigate the accumulation and movement of potential source material for the formation of debris flow hazards under extreme short-term heavy rainfall, this paper takes the Xiangbizui debris flow gully, Southwest China, as a case study. A detailed field engineering and geological investigation was carried out on the valley characteristics, formation conditions, provenance types, distribution range, loose solid material reserves that can be transformed into debris flows, and characteristics showing the variation in the grain size of the accumulated solids along the gully to further explore the characteristics of rainstorm-induced debris flow movement. The dynamic processes of debris flow movement and accumulation are numerically simulated to analyze the maximum velocity, accumulation height, range of influence, and evolutionary process based on the theory of continuous media of the approximate Voellmy solution and a high-precision three-dimensional model. The results indicated that rainstorms and steep terrain are the main factors stimulating debris flows. The amount of loose solid material in the channel is approximately 1550.61 × 104 m3, and the dynamic material reserves are approximately 396.41 × 104 m3. The maximum flow depth and velocity are approximately 3.5 m/s and 13 m/s, respectively, which mainly occur in the upper and middle reaches of the channel and in the accumulation fan at the outlet of the channel. The evolutionary process of the debris flow includes four stages: a 0–1,500 m initial acceleration stage, a 1,500–2,200 m fast forward movement stage, a 2,200–3,400 m acceleration stage in the middle and lower reaches, and a 3,400–4,300 m deceleration and end of accumulation stage. The research findings can provide a scientific basis and strong support for risk assessment and avoidance, as well as prevention and control of debris flows in mountainous areas with severe climate change.