bluuebunny/crossref_metadata_2025_split huggingface dataset:
Determining thermal and physical characteristics of wood polymer material for pipeline thermal insulation
Authors: Tsapko Yuriy , Kasianchuk Ivan , Likhnyovskyi Ruslan , Tsapko Аleksii , Kovalenko Vitalii , Nizhnyk Vadym , Bedratiuk Olga , Sukhanevych Maryna 
Published: November 2023

One of the methods for ensuring the efficiency of pipelines for transporting heat-carriers during operation is their thermal insulation, which inhibits heat transfer processes and does not affect environmental indicators. Therefore, the object of research was wood, a polymer material made by polymerization of wood sawdust and dry mixtures of synthetic resins for thermal insulation of pipelines. It has been proven that in the process of thermal action on the heat insulating layer of wood polymer material, the process of heat inhibition involves the formation of pores. This is due to the fact that the thermal conductivity of the material depends on the volumetric mass, the decrease of which for a wood polymer product leads to a decrease in thermal conductivity. In this regard, the simulation of the process of heat transfer through a cylindrical heat-insulating layer made of wood of polymer material was carried out and the dependences derived, which allow obtaining a change in the dynamics of heat transfer and determining thermophysical properties. According to the experimental data and the established dependences, it was found that the thermal conductivity of the wood of the polymer material was within 2.4÷2.9·10-8 m2/s, the thermal conductivity of the sample did not exceed 0.030 W/(m∙K). In addition, the heat capacity of the product corresponds to a value of more than 1034÷1145 kJ/(kg·K) depending on the thickness, which accordingly categorizes it as a heat-insulating material. At the same time, data on thermal insulation properties for polyurethane foam show that when it is used with a density of 100 kg/m3, the thermal conductivity is 0.029 W/(m∙K), which is approximately the same as the value of the proposed wood polymer material. The practical value is the fact that the results of determining the heat-insulating properties of a wood polymer material make it possible to establish the scope and conditions of its application
Development of a discreet-continuous mathematical model of a percussion device with parameters of influence on the characteristics of an impact pulse
Authors: Slidenko Viktor , Slidenko Oleksandr , Marchuk Liubov , But Viacheslav 
Published: November 2023

A study of a model of a discrete-continuous type of impactor in the energy transfer phase during the impact of a striker and a tool is presented. The device is used to destroy rocks, in construction equipment, and in the oil industry. In the mathematical model, the tool is represented by a rod with a variable profile, and the striker is a discrete element with a consolidated mass. The presence of rigid and dissipative connections models the impact interaction. The motion of the interacting elements of the impactor is described by a system of differential equations linked by boundary and initial conditions. The model allows determining the parameters of influence on the characteristic of the shock pulse at variable resistance of the working medium. The force of impact of a discrete element and the contact end of the rod is represented as a power law dependent on the difference in displacements of the contacting elements. The finite difference method is used to solve the initial boundary value problem. The parameters of the difference scheme were determined through modelling problems and were as follows: time step (1, ..., 5)·10-5 s; length step – (0.1...0.3) of the tool length, and for the mixed scheme – within 0.5...0.8. It was found that the time of striker-to-tool co-impact, depending on the stiffness coefficient, was 200...300 μs. With a load of up to 90 kN in the time range of 0...4 ms, the normal stresses in the tool sections at different times were 200...250 MPa. The combination of discrete and continuous elements simplifies the calculation scheme. It allows to determine the distribution of force characteristics in the cross-sections of the tool, the force and time of impact, and the influence of the working environment on these parameters. The developed model can be used to design impactors and optimize their parameters
Proyecto de vida e interacción social del sujeto en contexto
Authors: Gómez Realpe Daniela , Gómez Guerra Giraldo 
Published: November 2023

La siguiente reﬂexión se plantea desde los aportes de la interacción social como escenario de relaciones y comprensiones de los sujetos a partir de las formas colaborativas de comunicación lingüística y simbólica que genera sentido en contexto, donde el proyecto de vida es relevante, pues se establece como la formación del yo en continuo desenvolvimiento personal, dentro de la colectividad y la co-construcción a partir de los otros.
The Role of Greek Merchants in Russian Foreign Trade in the XVIII Century
Authors: Chatztheodoridis Eleftherios , Toktamysov Saken 
Published: November 2023

The article is devoted to trading activities of Greek merchants in the Russian Empire in the XVIII century. The authors aim to determine the geography of supply chains and the product range, to give specific examples of foreign trade transactions of Greek merchants and to determine their profitability. The authors show the numerous risks and dangers that accompanied the trading activities of Greek merchants during the period in question, including fraud, robbery and armed attacks on caravans. Notably, the confessional affiliation of Greek entrepreneurs and their status as an ethnic "minority" may have had an ambivalent effect on their commercial activities. On the territory of the Ottoman Empire, this brought additional risks to their commercial activity. In the Russian Empire, by contrast, such factors could lead to economic and financial support of the Greek diaspora by the government. The Russian government also acted as arbitrator in resolving property disputes between Greek businessmen. The commercial and communicative skills of the Greek merchants enabled them to act as effective intermediaries in the Russian Empire's trade with countries of the East and contributed to creation of the Greek diaspora's positive image in Russian society. The activities of individual representatives of the Greek diaspora led to the introduction of technological innovations in their production processes.
MAKNA RUHANI DALAM RITUAL DAN ESKATOLOGI ISLAM MENURUT AL-ALUSI
Authors: Arabi Ibnu 
Published: November 2023

Abstract: Religious life is related to issues of ritual and eschatology. These two things are comprehended and addressed differently in various circles. Among Fiqh scholars, worship (ibadah) is known as a form of formality without the ability to be creative. While some philosophers argue that worship is an irrational act. In the view of Sufism, worship in religion is something meaningful, it's just that not everyone can explore this meaning, because indeed in religion the issue of worship is understood as something supra-rational. This research uses the tafsir isyari approach and the chosen tafsir is tafsir Ruh al-Ma'ani written by al-Alusi. Data collection in the study was done by tracing the verses of the Qur'an interpreted by al-Alusi in his tafsir with isyari interpretation. From the research, it is concluded that the interpretation of Ruh al-Ma'ani by al-Alusi is one of the great books of tafsir that contains the zhahir and isyarah interpretations. The isyarah interpretation is within reasonable parameters, not in the form of a Bathiniyah interpretation.Keywords: Ruhani Meanings, Rituals, Islamic Eschatology. Abstrak: kehidupan beragama terkait dengan persoalan ritual dan eskatologi. Dua hal tersebut dalam berbagai kalangan dipahami dan disikapi secara berbeda. Di kalangan fiqh, ibadah dikenal sebagai bentuk formalitas tanpa kebolehan berkreasi. Sementara kalangan filosof ada yang berpendapat bahwa ibadah adalah tindakan irrasional. Dalam pandangan sufisme, ibadah dalam agama adalah sesuatu yang bermakna, hanya saja tidak semua orang mampu menyelami maknanya tersebut, karena memang dalam beragama persoalan ibadah dipahami sebagai sesuatu yang supra rasional. Penelitian ini menggunakan pendekatan tafsir isyari dan tafsir yang dipilih adalah tafsir Ruh al-Ma'ani yang ditulis oleh al-Alusi. Pengumpulan data dalam penelitian melalui;1) menelurusi ayat-ayat Alquran yang ditafsirkan oleh al-Alusi dalam tafsirnya dengan penafsiran isyari. Dari penelitian tersebut disimpulkan bahwa tafsir Ruh al-Ma’ani karya al-Alusi, adalah salah satu kitab tafsir besar yang memuat penafsiran-penafsiran zhahir dan isyarah. Penafsiran isyarahnya batas-batas kewajaran, tidak dalam dalam wujud tafsir Bathiniyah.Keywords: Makna Ruhani, Ritual, Eskatologi Islam.
Kolaborasi Role Playing Berbantu Media Zoom sebagai Upaya Peningkatan Hasil Belajar Siswa
Authors: Suryanto Edy , Kardoyo Kardoyo , Tri Bowo Santoso Jarot , Tiawan Anita Hertaty 
Published: November 2023

Abstract: Technological developments have encouraged active and creative learning involving technology. Learning in vocational schools such as SMK is highly recommended, in line with the high adoption of technology in the world of work. This research was structured to improve student learning outcomes in Office Automation and Governance (OAG) competency skills, especially in subjects, especially Public Relations Automation and Management. Low student learning outcomes indicate the need for improvement in learning. This research is a Classroom Action Research (PTK) with two cycles with data collection through post-test and pre-test and involving 36 students of SMK 1 Pelaihari. This study aims to describe the increased learning outcomes with the role-playing method assisted by media zoom. The results of the study found that there was an increase in the completeness of student learning outcomes in cycle I by 72%, and in cycle II, the completeness of student learning outcomes reached 92%, so there was an intervention in learning in the form of applying the role-playing method assisted by zoom media to improve learning outcomes better students. These findings indicate that collaborative learning methods assisted by certain media can improve student performance as measured by learning outcomes.Keywords:Learning Outcomes, Role Playing Method, Media Zoom, Innovative Learning, Class Action Research Abstrak: Perkembangan teknologi telah mendorong pembelajaran yang aktif dan kreatif dengan melibatkan teknologi. Pembelajaran di sekolah vokasi seperti SMK sangat dianjurkan, seiring dengan tingginya adopsi teknologi di dunia kerja. Penelitian ini disusun untuk meningkatkan hasil belajar siswa kompetensi keahlian Otomasi Perkantoran dan Tata Kelola (OTKP) khususnya pada mata pelajaran khususnya Otomasi dan Tata Kelola Humas. Rendahnya hasil belajar siswa mengindikasikan perlunya perbaikan pembelajaran. Penelitian ini merupakan Penelitian Tindakan Kelas (PTK) dengan dua siklus dengan pengumpulan data melalui post-test dan pre-test dan melibatkan 36 siswa SMK 1 Pelaihari. Penelitian ini bertujuan untuk mendeskripsikan peningkatan hasil belajar dengan metode bermain peran berbantuan media zoom. Hasil penelitian menemukan bahwa terjadi peningkatan ketuntasan hasil belajar siswa pada siklus I sebesar 72% dan pada siklus II ketuntasan hasil belajar siswa mencapai 92% sehingga dengan demikian adanya intervensi dalam pemeblajaran berupa penerapan metode bermain peran (role playing) berbantuan media zoom dapat meningkatkan hasil belajar siswa yang lebih baik. Temuan ini mengindikasikan bahwa kolaborasi metode pembelajaran dengan berbantu media tertentu dapat meningkatkan kinerja siswa yang diukur melalui hasil belajar.Kata Kunci:Hasil Belajar, Metode Role Playing, Media Zoom, Pembelajaran Inovatif, Penelitian Tindakan Kelas
Friksi Masyarakat Dalam Inkompabilitas Pemilu Dan Demokrasi Indonesia
Authors: Atiyatunnajah Megawati , Amna Wari Syatul 
Published: November 2023

General elections began in Indonesia in 1955 and several general elections were held both for the election of members of the legislature and for the election of the President and Vice President and now there are developments with the election of regional heads starting from the provincial level, namely the election of the Governor and Deputy Governor, then in At the district and city levels, there are elections for regents and deputy regents as well as mayors and deputy mayors, right down to the village or hamlet which are directly elected. Today, not a few of us see many contradictions, even to the point of division. General elections as a form of reform should make these differences as unity, not create divisions and ongoing conflict, for example, differences in presidential candidates, starting from the 2014 election until now, there are still divisions that undermine and disturb the unity and integrity of the nation. The motto of Bhinneka Tunggal Ika is just a motto but there is no application of it in the life of the nation and homeland anymore. A few rumors and rumors can undermine the solid building of the Unitary State of the Republic of Indonesia. The purpose of this writing is to identify and pay attention to how the impacts in society are related to friction in election and democracy incompatibilities and to find smart solutions to these problems.
KEYWORDS: Friction, Politics, Elections, Democracy
COMPLEMENTARY FEEDING EDUCATION AND PRACTICE ACTIVITY AS AN ATTEMPT TO PREVENT STUNTING IN CHILDREN UNDER TWO YEARS OLD IN GUGUT VILLAGE JEMBER REGENCY
Authors: Nadia Monica Putri  , Indarwati Fatimah , Sari Ragil Permata , Chusna Sinta Alifiya Mawwaddatul , Pereira Maria Lucia Da Costa , Nur Fitri Widya Astuti  
Published: November 2023

Latar belakang: Stunting merupakan suatu kondisi anak yang terganggu pertumbuhannya sehingga tinggi badan anak tidak sesuai dengan usianya. Kabupaten Jember merupakan salah satu lokasi penurunan stunting dari 360 kabupaten di 34 provinsi, di mana Desa Gugut di Kecamatan Rambipuji merupakan salah satu wilayah lokus stunting. Prevalensi stunting di Desa Gugut pada Februari 2022 sebesar 27,91%, sehingga perlu dilakukan kegiatan untuk pencegahan stunting salah satunya dengan edukasi tentang pemberian Makanan Pendamping Air Susu Ibu (MP-ASI). Tujuan: Meningkatkan pengetahuan dan keterampilan ibu dan kader posyandu dalam praktek pemberian MP-ASI pada baduta. Metode: Metode kegiatan dilakukan dengan edukasi partisipatif yaitu melalu ceramah dan demonstrasi praktik pengolahan MP-ASI dengan menggunakan bahan makanan lokal.. Sasaran kegiatan ini adalah ibu baduta di Desa Gugut. Peningkatan pengetahuan diukur dengan menggunakan pre-dan post test. Hasil: Sebanyak 75% target peserta hadir dalam kegiatan ini dimana terdapat peningkatan pengetahuan terkait MP-ASI sebesar 12,51% dan peserta aktif dalam diskusi pada saat penyuluhan dan demonstrasi praktek menu MP-ASI. Kesimpulan: Edukasi dengan metode partisipatif ceramah dan demonstrasi praktek dapat meningkatkan pengetahuan ibu baduta terkait pengolahan MP-ASI dengan bahan lokal.

Kata kunci: Edukasi gizi, stunting, MP-ASI, baduta
IMPLEMENTATION OF ENTREPRENEURIAL SELFMANAGEMENT SOFT SKILLS OF HEALTH STUDENTS THROUGH COMMUNITY EMPOWERMENT WITH MSMES
Authors: Rr. Sri Endang Pujiastuti  , Sriningsih Iis , Mardiyono Mardiyono , Zakaria Prima , Novita Dhea 
Published: November 2023

Latar belakang: Pergeseran paradigma dalam pendidikan dari pengajaran ke pelatihan menjadi pembangunan manusia holistik (dari semua orang). Perkembangan media digital membuka peluang bagi tumbuhnya para pengusaha online, yaitu. penciptaan lapangan kerja baru melalui media digital. Kewirausahaan internet sangat penting karena dapat mendorong kemandirian finansial masyarakat. Oleh karena itu diperlukan adanya self-management oleh pelaku UMKM untuk mencapai kesuksesan dalam bisnis mereka. Tujuan: Meningkatkan self-management sebagai soft skills yang dimiliki pelaku UMKM, meningkatkan perekonomian keluarga dan masyarakat dengan pemanfaatan self-management dan implementasi pemberdayaan amsyarakat dengan peningkatan self-management. Hasil: Pemberian edukasi pengembangan UMKM tekait dengan self-assesement, keamanan produk dan digitalisasi pada UMKM menumbuhkan soft skills dalam implementasi self-managemen pada pelaku UMKM. Kesimpulan: Self-management yang efektif mampu memastikan pelaku UMKM dapat menjalankan tujuan bisnis dengan sukses.
Rancangan Teknis Mine Drainage Dan Mine Dewatering Serta Simulasi Critical Level Pada Kapasitas Sump Dengan Persamaan Water Balance Untuk Penanganan Banjir Pada Pit Eagle Di PT Triaryani Kabupaten Musirawas Utara Provinsi Sumatera Selatan
Authors: Nasution Baihaqi , Prabawa Aditya Denny , Wiratama Jarot 
Published: November 2023

Pada PT. Triaryani aktivitas penambangan batubara memakai sistem tambang terbuka dengan menggunakan metode strip mine sebagai akibatnya semua rangkaian kerja penambangan terpengaruh oleh iklim dan cuaca. Pada area Pit Eagle memiliki catchment area yang besar yaitu 217 ha, yang apabila terjadi curah hujan yang tinggi akan mengakibatkan debit limpasan yang melewati pit tersebut sangat besar. Jenis pompa yang digunakan juga tidak memenuhi spesifikasi untuk pompa tambang (Yanmar TF 85 MR-di) yang hanya mampu mengeluarkan outflow ± 20 m³/jam. Tingginya curah hujan serta durasi hujan hingga 12 jam pada september mengakibatkan sump yang ada tidak mampu menampung total volume air yang masuk sehingga air meluap dan memenuhi Pit Eagle, hal ini juga dipengaruhi oleh dimensi saluran terbuka di beberapa tempat tidak sesuai sehingga mengakibatkan air yang masuk tidak sempat mengalir melalui saluran terbuka dan langsung masuk ke area Pit Eagle. Adapun debit limpasan pada PT Triaryani sebesar 400996.68 m³/hari dalam luasan 217,04 Ha. Dengan debit air tanah 19,55 m³/hari yang mana terjadi kenaikan air pada sump sekitar 2 mm. Total volume air yang masuk area tambang adalah 401016.23 m³/hari. Karena besarnya debit limpasan sehingga perlu pengecilan catchment area dengan perancangan saluran terbuka, dalam perencanaan dimensi saluran terbuka didapatkanlah lebar permukaan saluran tersebut 4,5 m dengan lebar alas 1,5 m dan kedalaman saluran terbuka 1,5 m, total kapasitas saluran terbuka yang didapat adalah 5,78 m³/s, sehingga total volume limpasan menjadi kecil yaitu 15426.13 m³/s. kemudian didapatkanlah dimensi rancangan sump dengan total volume tampungan 19450.90 m³. pompa yang direkomendasikan adalah pompa tambang Sykes CP150-255-PR, yang mana pompa ini memiliki maximum flow hingga 163 L/s atau sama dengan 585 m³/jam dan maximum head hingga 43 m. Elevasi critical berdasarkan perhitungan menggunakan kapasitas pompa didapatkanlah berada pada 5.4 m kedalaman sump, sedangkan elevasi kritis berdasarkan kepmen 1827 yang mana titik elevasi kritis berada pada 80% dari volume sump sehingga elevasi tersebut berada pada 5 m kedalaman sump.
ДОЛІ СПІВРОБІТНИКІВ СЛУЖБИ БЕЗПЕКИ ОУН НА ТЕРЕНАХ РАДЯНСЬКОГО СОЮЗУ (1950–1980-ТІ РР.)
Authors: Антонюк Я. , Трофимович В. , Трофимович Л. 
Published: November 2023

У статті на основі насамперед архівних матеріалів висвітлено становище та діяльність колишніх співробітників розформованої наприкінці 1951 р. Служби безпеки (далі — СБ) Організації українських націоналістів (далі — ОУН). Показано, що традиції останньої вони продовжили у виправно-трудових таборах. З’ясовано, що після масового звільнення з таборів оунівці об’єднувались у підпільні організації, частина яких створювала власні органи безпеки. Простежено їх подальший життєвий шлях.
Ключові слова: ОУН, СБ, співробітник СБ, КДБ, український націоналіст, підпільна організація, публічний суд.
Copper ecotoxicity in French vineyard soils
Authors: Cornu Jean-Yves 
Published: November 2023

How toxic is copper contamination of vineyard soils to the ecosystem? That is the thorny question this paper seeks to answer. Based on studies describing Cu toxicity in plants, it points out that Cu contamination of vineyard soils is generally moderate and that demonstrations of Cu ecotoxicity at plot level are rare. It stresses that Cu ecotoxicity depends above all on its bioavailability in the soil and explains why it also appears in calcareous soils. Lastly, it identifies priorities for further research in this field.
Platelet-rich fibrin – contemporary approach in aesthetic medicine and dentistry
Authors: Carlton Oliver , Nawara Błażej , Wyganowska Marzena 
Published: November 2023

Introduction and aim. In recent years, there has been an increasing popularity in the use of platelet‑rich fibrin (PRF) in maxillofacial surgery and aesthetic medicine. This article presents a review and summary of current medical literature regarding the applications of this preparation in these fields.Material and methods. A systematic review of current English‑language medical literature was conducted using the PubMed database, using the search phrases „PRF”, „platelet‑rich fibrin in aesthetic medicine”, and „platelet‑rich fibrin in dentistry”.Results and conclusions. PRF, as an autologous, inexpensive, and easily obtainable preparation that can be applied in many aesthetic medicine and dental procedures, may play a significant role in the future of these medical fields. However, in the coming years, attention should be paid to conducting more detailed studies on the effects of this therapy, as most of the previous research has been based on small patient groups, with short follow‑up periods or containing errors in the research design.
A comparison of the efficacy of reducing the signs of ageing in the neck skin after polynucleotides injections in regimens with different dosing intervals – a case study
Authors: Lis Aleksandra , Kawałkiewicz Weronika , Kubisz Leszek 
Published: November 2023

Introduction. The article presents the case of a 59-year‑old female patient with signs of the neck skin ageing who underwent treatment based on fish‑derived polinucleotides injections using two different regimens. Aim. To compare efficacy of the regimens A and B.Material and methods. Intradermal injections were administered in two schemes (A and B), considering the following intervals: four treatments 2 weeks apart for scheme A (left half of the neck) and four treatments 4 weeks apart for scheme B (right half of the neck). Analysis of skin parameters was performed using the set of probes Cutometer Dual MPA 580 probe Courage+Khazaka electronic GmbH (cutometer, corneometer, mexameter, evaporimeter). Measurements were always taken at the same points on the both sides of the neck.Results. The patient was treated without persistent side effects. No improvement in cutometer parameters has been observed after treatment with Scheme A on both neck and mandible site. In contrast, the use of Scheme B resulted in increases in parameters R2 (the only significant effect). The application of both regimens resulted in more consistent melanin results in the neck and mandibular regions. In addition, regimen A was more effective in reducing skin redness at both sites, while regimen B was more effective in improving skin condition and resulted in a greater increase in skin hydration in the mandibular site. Conclusions. The skin benefited more from Scheme B. Treatment with polynucleotides extends the anti‑ageing therapy options but is characterised by a mild effect. In mature patients it should be used rather as a form of prevention than as a method of reversing the effects of ageing.