bluuebunny/crossref_metadata_2025 huggingface dataset:
Pengaruh Partisipasi Penyusunan Anggaran dan Kegunaan Sistem Informasi Akuntansi Terhadap Kinerja Pegawai Dengan Komitmen Organisasi Sebagai Variabel Moderasi (Studi Empiris Pada RSJD Dr. Amino Gondohutomo Provinsi Jawa Tengah)
Authors: Septiningrum Meirina , Winarti Endah , Subchan Subchan
Published: April 2022

Employee performance is a matter that is very much considered by a company so that the company can be more advanced due to good employee performance. The purpose of this study is to empirically examine the effect of budgetary participation and the usefulness of accounting information systems on employee performance with organizational commitment as a moderating variable. The study population was all employees of Dr. Amino Gondohutomo, Central Java Province. Total employee samples amounted to 180 respondents taken using a questionnaire distributed directly to employees, but which can be processed by 163 respondents. The data used is primary data using the questionnaire data collection method. The method of analysis in this study is Moderated Regression Analysis (MRA).From this research, it can be concluded that budgetary participation and the usefulness of accounting information systems have a significant positive effect on employee performance. The higher budgeting participation and the usefulness of accounting information systems, the higher the performance of employees. This study also found that organizational commitment can moderate the relationship between budgeting participation and the usefulness of accounting information systems to employee performance with a significant positive direction. The higher budgeting participation and the usefulness of accounting information systems, with high organizational commitment will improve employees performance.
METODE PEMBELAJARAN EKSTRAKURIKULER DRUMBAND DI TK LUKMANUL HAKIM KADEMANGAN KABUPATEN BLITAR
Authors: Sugito Meidhimas Wahyu Nurhafiid , Noordiana Noordiana
Published: April 2022

Ekstrakurikuler Drum Band TK Lukmanul Hakim Kabupaten Blitar dirintis sejak tahun 2005 yang saat itu kepala sekolah bernama Haris Saputri dan Pembina Drum Band Munas Sudarwarji dan Aditia Sahputra. Drum Band TK Lukmanul Hakim yang bernama “LH Stars”, sering mengikuti kejuaraan lomba di tingkat kabupaten maupun di tingkat provinsi. Tujuan penulisan artikel ilmiah ini untuk mendeskripsikan proses dan hasil pembelajaran Ekstrakurikuler Drum Band TK Lukmanul Hakim Kabupaten Blitar. Dalam penelitian ini peneliti menggunakan metode kualitatif deskriptif. Sumber data yang diambil pada penelitian yakni primer dan sekunder dengan data yang diambil dalam penelitian yaitu Aditia Sahputra selaku pelatih Drum Band TK Lukmanul Hakim Kabupaten Blitar. Data yang diperoleh melalui observasi, wawancara dan dokumentasi. Hasil penelitian menunjukkan bahwa metode ceramah digunakan oleh pelatih untuk memberikan materi tentang dasar-dasar pengenalan alat Musik Drum Band.  Metode demonstrasi dilakukan oleh pelatih yang secara langsung mempraktikkan bagaimana cara memainkan alat Musik Drum Band, serta Metode latihan bersama didahului dengan mengelompokkan peserta didik sesuai instrumennya, kemudian melakukan latihan materi lagu yang telah diberikan oleh pelatih dan dilakukan secara berulang-ulang.
PENGENALAN SENI TARI PADA ANAK USIA DINI SEBAGAI UPAYA MENANGKAL KECANDUAN GADGET DI SANGGAR SENI KARTIKA BUDAYA KAB. JEMBER
Authors: Khasanah Khafidhotul , Handayaningrum Warih
Published: April 2022

Sanggar Seni Kartika Budaya memiliki progam yaitu Seni Tari Sebagai Antisipasi Gadget Addict. Penelitian dengan judul “Pengenalan Seni Tari Pada Anak Usia Dini Sebagai Upaya Menangkal Kecanduan Gadget Di Sanggar Seni Kartika Budaya Kabupaten Jember” bertujuan untuk mengetahui proses pengenalan seni tari pada anak serta pengaruh terhadap minat anak bermain gadget. Penelitian ini menggunakan metode kualitatif. Teknik pengumpulan data yaitu dengan wawancara, observasi dan dokumentasi. Hasil pembahasan dari penelitian ini 1) Proses penganalan seni tari pada anak usia dini berlangsung selama 3 bulan dengan menggunakan metode hitungan, metode musik, metode mirroring dan metode drill yang dipadu dengan belajar sambil bermain. Evaluasi dilakukan dengan 2 cara yaitu penilaian individu yang dilakukan pada akhir pemberian materi, dan evaluasi kelompok yang dilakukan pada akhir masa pembelajaran yaitu Uji Kompetensi Siswa. 2) Hasil pengenalan seni tari menunjukkan adanya pengaruh terhadap lama waktu anak bermain gadget, sehingga terjadi perubahan minat anak dalam bermain gadget. Tercatat 50% dari 14 anak sebagai sampel, sebelum dikenalkan dengan seni tari minat terhadap gadget sangat tinggi. Setalah dikenalkan dengan tari selama 3 bulan sebanyak 35% anak minat sedang dan 65% minat rendah. Selain itu perkembangan aspek motorik anak dapat berkembang dengan baik.
Work from Home: Social Media, Virtual Meeting and the New Family Relationship
Authors: Jacky Mohammad , Sadewo FX Sri , Harianto Sugeng , Sudrajat Arief , Noor Mansor Mohd , Fenoughty Des
Published: April 2022

The COVID-19 pandemic has actually forced people to work at home. Office activities outside the home can result in the transmission of COVID-19 to its workers. The government has taken a decision to minimize employee attendance at the office. Employees are encouraged to work at home (WFH), especially in groups vulnerable to infection. The house is turned into an “office space.” With the internet network, these employees are connected to each other. Although factually, this pattern is not a new thing because it has been carried out since the 2000s and is now becoming increasingly intensive. Through qualitative research with an ethnomethodological perspective, the results show that with this pattern, the house has become an encounter between public space and domestic space. This requires a strategy to manage roles in the home. Through in-depth observations and interviews, there were several important findings. First, there is a struggle for space in the house. Second, there is a transfer of stress from work to home. Third, there is a renegotiation of roles in the house, so as not to disturb family harmony. No less important, the community of users of social media and virtual meetings builds constructions of public and domestic space and time. The division of space and time in virtual space is also related to a person's role and social status when in the real world of work.
Global Tends in the Corporate Reporting Development
Authors: Abdalova E. B. , Karelskaia S. N.
Published: April 2022

The paper covers the disclosure of information on company’s climate risks in corporate reporting, which is the urgent agenda. It was found that 16 of International Financial Reporting Standards (IFRS) provide the opportunity for disclosing of such climate risks. However, they contain significant restrictions regarding the presentation of forecasting information. The analysis revealed the current stages of corporate reporting development under the influence of the relevant disclosure of climate risks by companies. The research data source includes the publications and statements available on the official website of the IFRS Foundation**. The research results can be useful for professional international organisations and Russian state bodies engaged in the development of financial and non-financial reporting standards, concerned users, as well as economic entities that prepare corporate reporting.
Formation of the Scientific School of V. S. R ozhnov in the Field of Digitalization and Automation Accounting
Authors: Rozhnova O. V. , Kosarev V. P. , Gorodezkaya O. Yu.
Published: April 2022

The article examines automation of Russian accounting, which continued to develop rapidly in 21st century and turned into a new hypostasis of digitalization. It is impossible to overstate contribution of scientists, who stood at the origin of development of the modern economic information environment. The leading role was held by representatives of the scientific school of Moscow Finance Institute (the Finance Academy). Not only did they develop the fundamental and applied Russian accounting science, but also formed the framework that became the foundation for digitalization of accounting. The aim of the article is the study of scientific heritage of the generation of pioneers in accounting automation personified by Professor Vladimir Sergeevich Rozhnov, who was a typical representative of the Soviet scientific school with his scientific personality, breadth of views and interests, and position. The article reveals milestones in the formation of Professor V. S. Rozhnov’s scientific views: the family, ever supportive of his professional endeavors, the environment of the Moscow Finance Institute, which brought up his character as a researcher who cannot be stopped by obstacles, the community of both Soviet and foreign scientists, working in the field of economics, statistics, cybernetics, mechanization and automation of accounting. The scientific cognition methods were used in the article: deduction, induction, analogy and abstraction, synthesis and analysis, including aspect and empirical methods, etc. The article describes the process of formation of scientific schools in Russian universities (with the example of the Finance University); the link of scientific generations, the memory of pioneers in science.
Application the Legacy of the Russian Accounting and Analytical School Nowadays
Authors: Editorial Article
Published: April 2022

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Design of a 0.5–18 GHz Wideband Frequency Down-Converter Module with a Local Circuit for an Electronic Support Measurement System
Authors: Jeon Yuseok , Kim Byeongchang
Published: April 2022

In this paper, we describe the design and fabrication of a wideband frequency down converter module that has a local circuit with high gain, low spurious, high IP3 (3rd intercept point) characteristics, and reliability; this is accomplished by applying a chip-and-wire process using a bare type monolithic microwave integrated circuit (MMIC) device. To compensate for the mismatch among many sub-modules, an input module, filter bank module, output module, and local oscillator (LO) module suitable for sub-band frequency characteristics were designed and applied to the down converter. Th e frequency down converter module had three paths: 0.5−2 GHz (direct), 2−6 GHz (direct), and 6−18 GHz (converter). Amplitude-matched radio frequency (RF) semi-rigid cables of different lengths were used to connect to the internal sub-modules of the frequency down converter. The main RF line was a dielectric substrate, RT/duroid 5880, with a relative dielectric constant of 2.2 and a dielectric thickness of 0.127 mm. In the wideband frequency down converter module, the gain was 22.7 dB at low band (input frequency, 0.5−2 GHz) with a flatness of about 3.4 dB. Th e gain was 22.6 dB at mid band (input frequency, 2−6 GHz) having flatness about 2.0 dB. The gain was from 30 dB at edge frequency of high band (input frequency, 14−18 GHz) with a flatness of about 4.2 dB. The measured value of IP3 at LB was +23.52 dBm, +25.66 dBm and +23.44 dBm as the maximum value. The measured value of spurious (LO-2IF) at the converter path was 34.97 dBc as the maximum value.
Stilistika dalam Geguritan “Mung iki Kang Dak Duweni” Karya Eka Nuranisih
Authors: Sari Pulung , Sulanjari Bambang
Published: April 2022

Tujuan penulisan artikel ini adalah mendeskripsikan bentuk makna kajian stilistika dalam geguritan “Mung Iki Kang Dak Duweni” karya Eka Nuranisih.Metode yang digunakan untuk mengungkapkan diksi dan gaya bahasa dalam geguritan ini adalah deskriptif kualitatif. Data penelitian berupa kata, frasa,ataupun kalimat yang diduga mengandung diksi. Stilistika (stylistic) adalah ilmu yang meneliti penggunaan bahasa dan gaya bahasa di dalam karya sastra. Adapun dalam karya sastra sendiri tentunya mempunyai sebuah makna yang tersembunyi dan disampaikan langsung oleh pengarangny. Pada pembahasan ini akan fokus menganalisis Diksi dan Gaya Bahasa dalam geguritan. Geguritan sendiri merupakan puisi dalam bentuk bahasa jawa. Dalam gegeguritan“Mung iki Kang Dak Duweni” karya Eka Nuranisihini menceritakan tentang kehidupan sosial, dimana orang tersebut berusaha untuk senantiasa meminta kesabaran, kekuatan serta keberkahan dalam menghadapi berbagai ujian dari-Nya terutama dalam menghadap konflik sosial dalam kalangan masyarakat. Hasil yangditemukan adalah terdapat diksi,dan gaya bahasa pada geguritan “Mung iki Kang Dak Duweni” karya Eka Nuranisih, yaitu pemilihan diksi pada, Kudu daktutup kupingku amarga swaramu  (ingin kututup telingaku karena suaramu) Wis pirang papan olehmu adol warta  (diberapa tempat kau menjual omongamu). selain itu gaya bahasa yang digunaan juga sangat bervariasi ditunjukan pada kutipan “Senajan nalaku njerit” dimana pada kutipan tersebut termasuk gaya bahasa perbandingan, karena dalam kata tersebut terdapat bahasa kiasan, yang dimana pada kata nalaku njerit. Senajan nalaku njerit sendiri memiliki arti meskipun hatiku sedang menjerit.Kata kunci: Stilistika, makna, geguritan, diksi, gaya bahasa
Analisis Film Pendek “Lemantun” Karya Wregas Bhanuteja dengan Teori Sosiologi Sastra
Authors: Wulandari Arum , Sulanjari Bambang
Published: April 2022

Tujuan dari penelitian ini untuk menganalisis teori sosiologi sastra dalam film pendek “Lemantun” karya dari Bagas Bhanuteja. Teori yang digunakan dalam adalah teori struktural dan pendekatan sosiologi sastra. Teori struktural dan pendekatan tersebut digunakan dengan cara mengkombinasikan dari beberapa pendapat para ahli sastra mengenai sosiologi sastra. Metode yang digunakan dalam penelitian ini adalah metode penyediaan data, yaitu metode  dengan cara observasi dan menyimak, metode yang digunakan dalam tahap analisis data adalah metode kualitatif, sedangkan didalam tahap penyajian hasil analisis data menggunakan metode informal. Untuk menunjang metode-metode tersebut perlu digunakan beberapa teknik, yaitu: teknik pencatatan data, teknik transliterasi data, teknik terjemahan data, teknik deskriptif analitik data, dan deduktif induktif data. Hasil penelitian ini menyimpulkan terdapat 4 aspek kajian sosiologi sastra, diantaranya konteks sosial pengarang. Sastra digunakan sebagai cermin masyarakat, salah satunya genre sastra dan sastra mampu menampilkan keadaan masyarakat dari masa ke masa.
Polish-English cognates and doublets: Morphosemantic evolution of selected Proto-Indo-European roots into related lexemes in Polish and English
Authors: Kamola-Uberman Weronika
Published: April 2022

The following article will attempt to visualise the relationship between Polish and English by presenting selected examples of cognates and doublets (so called ‘etymological twins’, or related words found in one language) in both languages, following their etymology and the semantic and morphological changes to which they were subject. The evolution of the Proto-Indo-European roots *lendh- ‘loin’, *sh2el- ‘salt’ *ph3i- ‘drink’ *seh₁- ‘to impress, insert; to sow, plant’ will be investigated, as well as the morphological and semantic changes the words descending from these roots have undergone, such as the use of metaphor, metonymy, specialisation or generalisation. Doublets and cognates in Polish and English will be presented and described.
The exploration of the doubleness of belonging in Naim Kattan’s "Farewell Babylon"
Authors: Joudar Ahmed
Published: April 2022

This paper studies the origin of Jewish existence in Iraq by examining Farewell Babylon, written by Naim Kattan, a Jewish Iraqi writer who lives in Canada. In past decades, Jewish communities moved from one location to another as a result of displacement and emigration, thus the Jewish diasporic movements created new territories. This paper explores the sense of doubleness of belonging by investigating a Jewish diaspora . The investigation studies the relationship between home and neighbours in Kattan’s text which focuses on the concepts of belonging, the ‘Self’ and the ‘Other.’ The study of the relationship between Jewish identity and Arab identity in Iraq permits us a wide knowledge of the concept of belonging.
Rias Karakter Luka Bakar: Komparasi Antara Penggunaan Lateks dan Lem Bulu Mata Sebagai Efek Artistik Tiga Dimensi
Authors: Farinisli Keke
Published: April 2022

This paper discusses the experimental makeup of making artistic effects of burns in order to make makeup that looks real and very similar to the original. Experiments were carried out by comparing the use of latex with the use of feather glue. The aim of this study was to analyze the results of eyelash glue application compared with the results of latex application to make three-dimensional burn character makeup. Applying the type of Quasy Experimental research, data was collected by purposive sampling technique. Data analysis was carried out descriptively by looking at the differences in the results of the application of eyelash glue and Latex to make a three-dimensional character makeup of burns, by displaying the mean and minimum and maximum standard deviations. The results of the analysis showed that the use of latex was better in making the effect of three-dimensional burns, with lifting power aspects 3.57, texture aspects 3.04 and 3.28, when compared to the use of eyelash glue with lifting power aspects 2.80, aspects textures 3.66 and 2.52.Keywords: make-up; artistic effect; Burns; latex; eyelash glueAbstrakTulisan ini membahas tentang ekperimentasi tata rias pembuatan efek artistik luka bakar agar dapat membuat riasan yang terlihat nyata dan sangat mirip dengan aslinya. Ekperimentasi dilakukan dengan membandingkan antara penggunaan lateks dengan penggunaan lem bulu. Penelitian ditujukan untuk menganalisis hasil aplikasi lem bulu mata yang dikomparasikan dengan hasil aplikasi lateks untuk membuat riasan karakter luka bakar tiga dimensi. Menerapkan jenis penelitian Quasy Experimental, data dikumpulkan dengan tekhnik purposive sampling. Analisis data dilakukan secara deskriptif dengan melihat perbedaan pada hasil pengaplikasian lem bulu mata dan Latex untuk membuat riasan karakter tiga dimensi luka bakar, dengan menampilkan mean serta standar deviasi minimum dan maksimum. Hasil analisis menunjukkan bahwa penggunaan lateks lebih baik dalam pembuatan efek luka bakar tiga dimens, dengan aspek daya angkat 3,57, aspek tekstur 3,04 dan 3,28, jikan dibandingkan dengan penggunaan lem bulu mata dengan aspek daya angkat 2,80, aspek tekstur 3,66 dan 2,52.Kata Kunci: tata rias; efek artistik; luka bakar; lateks; lem bulu mata
On Some Properties of a New Truncated Model With Applications to Lifetime Data
Authors: Arshad Muhammad Zeshan , Balogun Oluwafemi Samson , Iqbal Muhammad Zafar , Oguntunde Pelumi E.
Published: April 2022

This research explored the exponentiated left truncated power distribution which is a bounded model. Various statistical properties which include the moments and their associated measures, Bonferroni and Lorenz curves, reliability measures, shapes, quantile function, entropy, and order statistics were discussed in detail. A simulation study was provided and applications to two real-world data were considered. The performance of the exponentiated left truncated power distribution over other bounded models like Topp-Leone distribution, Beta distribution, Kumaraswamy distribution, Lehmann type–I distribution, Lehmann type–II distribution, generalized power function, Weibull power function, and Mustapha type–II distribution is quite commendable.
Características psicológicas, estilos de vida y hábitos alimentarios en estudiantes universitarios en Medellín, Colombia.
Authors: Serna Ortega Mely Isabella , Obando Naspiran María Paola , Sánchez Acosta Daniela , Pérez Sierra Sandra Ivonne , Botero Bernal Melissa
Published: April 2022

Introducción: existe una relación entre características psicológicas como la ansiedad, el miedo y la tristeza, con los estilos de vida y los hábitos de alimentación, específicamente en la población universitaria. Objetivo: describir las características psicológicas, estilos de vida y hábitos alimentarios de estudiantes de primer semestre de una universidad privada en Medellín, Colombia durante los años 2015-2018. Material y método: estudio observacional, descriptivo, retrospectivo, de fuentes secundarias y con tendencia analítica. Se tomaron los datos obtenidos a partir de un cuestionario ad hoc aplicado a estudiantes de primer semestre de una universidad privada que indagó su percepción sobre algunas características psicológicas, estilos de vida y hábitos alimentarios. Resultados: se encontró una asociación estadísticamente significativa entre la ideación suicida y el consumo de carne, así como el consumo de azúcar con la presencia de miedo. Relación proporcionalmente inversa entre el consumo de frutas y la presencia de ansiedad y tristeza. Conclusiones: estas estadísticas son de gran relevancia debido a que evidencian la necesidad de crear de planes y proyectos enfocados en mejorar los hábitos de vida de los estudiantes que empiezan a incursionar en la vida universitaria, puesto que de esto dependerá el desarrollo de estos durante su carrera profesional. Se recomiendan dietas bajas en grasa y azúcares, pero ricas en frutas y vegetales, como elementos que pueden reducir la presencia de problemáticas relacionadas con la salud mental.
Aplicaciones terapéuticas de la bromelina en el sistema gastrointestinal en humanos: una revisión de alcance.
Authors: González Taracena Moisés , Valencia Ruiz Keith Irina , Martínez Báez Adbel Zaid , Márquez Zamora Leticia , Ramírez López Erik
Published: April 2022

Resumen en español

Introducción: La bromelina se ha utilizado con fines terapéuticos desde el siglo XIX. Se han reportado distintos estudios que mostraron resultados favorables para el sistema gastrointestinal tanto in vitro como en animales e incluso en humanos. Objetivo: Desarrollar una revisión de alcance actualizada considerando los últimos 21 años de investigación para la descripción del uso terapéutico gastrointestinal de la bromelina en humanos, animales e in vitro. Método: Se realizó una revisión exploratoria (scoping review) con base en los requerimientos de PRISMA para este tipo de revisiones. La búsqueda sistemática se llevó a cabo en las bases de datos PubMed, ScienceDirect, Scopus, Google Académico, Springer Link y Wiley de estudios publicados entre el 2000-2021. Resultados: Se encontraron 13 artículos, 5 ensayos clínicos, 4 en animales y 4 in vitro. Los resultados significativos encontrados fueron para vaciamiento gástrico, analgésica, antiácido, anticancerígena, antiestreñimiento, antiinflamatoria e inmunomoduladora, prebiótica y probiótica. Conclusiones: El potencial terapéutico de la bromelina es prometedor, solo se requiere incrementar al cantidad y calidad de la evidencia, realizando más ensayos con metodología apropiada para estudios clínicos.

Palabras clave: Bromelina; Enfermedades Gastrointestinales; Nutracéutico.

Resumen en inglés

Background: The bromelain has been used for therapeutical purposes since the 19th century. Different studies have been reported the use of this proteolytic enzyme with favorable effects for the gastrointestinal system both in vitro and in animals and even in humans. Objective: Develop an updated scoping review considering the last 21 years of research for the description of the gastrointestinal therapeutic use of bromelain in humans, animals, and In-vitro. Material and methods: An exploratory review (scoping review) was carried out based on the requirements of (PRISMA) for this type of review. The systematic search was in six electronic databases PubMed, ScienceDirect, Scopus, Google Scholar, Springer Link, and Wiley; of studies published between 2000-2021. Results: 13 publications including 5 clinical trials, 4 in animals, and 4 in-vitro studies were eligible. Significant results were found for the following activities: gastric emptying, analgesic, antacid, anticancer, anti-constipation, anti-inflammatory, immunomodulatory, prebiotic and probiotic. Conclusions: The therapeutic potential of bromelain is promising, it is only required to increase the quantity and quality of the evidence, carrying out more trials with appropriate methodology for clinical studies.

Keywords: Bromelain; Gastrointestinal diseases; Nutraceutical.
The analog–to-digital coding of relief-phase holograms using anisotropic media
Authors: Tanin L. V. , Harcharuk A. I. , Moiseenko P. V. , Tolstik A. L. , Melnikova E. A.
Published: April 2022

The basis of the modern methods of protecting products, goods, documents, and equities are holographic security technologies, the development of which indicates that they are improving, new equipment and materials appear, new methods of hologram recording are being developed, their manufacturability is increasing, identification and authentication are being simplified. Combined images are widely used in modern holography. When creating combined images, various optical effects arise, such as moire, parallax, color change, etc., which, in combination with each other, as well as with other images (microtext, hidden images, sequential numbering, marking, coding, chemical indicators), permit to use them both to protect documents and to obtain an original artistic effect. This article discusses combined protective elements based on a relief-phase hologram with a deposited polymer carrier layer containing a latent image visible in polarized light. This protective element is named crystallogram. In the process of developing a crystallogram, the synthesis of monomers and the preparation of an anisotropic polarizable composition was mastered, a layer of polymerizable liquid crystals (PLC) was obtained with a contrast visualization of a latent image. A technology was developed for combining the relief-phase hologram with the deposited polymer carrier layer with the subsequent blocking of the polarizable liquid crystals (PLC) layer by protective varnish layers.
A metamaterial based on planar spirals as a electromagnetic waves polarization converter
Authors: Semchenko I. V. , Kravchenko A. Y. , Samofalov A. L. , Khakhomov S. A.
Published: April 2022

The design and modeling of a metasurface is carried out, which makes it possible to transform an incident linearly polarized electromagnetic wave into a transmitted wave with elliptical polarization close to circular. At the same time, the reflection coefficient of the wave is close to zero at the resonant frequency, since the metasurface is similar to the free space in its wave resistance. The resonant elements of the meta-surface (meta-atoms) are two-turn planar spirals with balanced dielectric and magnetic properties. Such spirals exhibit radically different properties with respect to waves with right and left circular polarization. The metasurface as a polarization converter has strong chiral properties, since it contains planar spirals of only one direction of twisting, and can be manufactured within the framework of printed circuit board technologies.
The construction of solutions for some model problem classes with resolvent equations of a fractional order
Authors: Zhuravkov M. A. , Kolyachko V. V.
Published: April 2022

In this paper, we represent new examples of constructing model problems of the mechanics of a deformable solid using a fractional differentiation apparatus. The solutions to boundary problems of mechanics are found, in which the defining differential equations have a fractional order. In particular, such problems as a model of a “fractal” oscillator, a model problem on the dynamic of wave propagation in rock, model problems on the deformation of wave propagation in deformable viscoelastic media (a semi-infinite viscoelastic rod) for various viscoelasticity models are considered. When building the solutions, the Mainardi algorithm and the Laplace transformation are used. Model solutions for the considered problems are built. Asymptotic solutions of wave propagation equations in viscoelastic media under different viscoelasticity models are obtained.
A quantum rotator on a three-dimensional sphere
Authors: Kurochkin Yu. A.
Published: April 2022

In this work, the quantum-mechanical problem of the motion of two material points of different masses on a three-dimensional sphere with a non-fixed position of the center of mass of the system is formulated on the basis of the previously solved classical problem. It is shown that the established Schrödinger equation includes two different reduced masses, depending on the distance between the points. For the case of the interaction potential of points, depending only on the distance between them, this equation allows the separation of variables into a radial, depending on the relative distance and both the reduced masses and the spherical part. The equation for the spherical part depends only on one of the above reduced mass and allows one to formulate and solve the problem of a rigid rotator - the distance between the points is fixed. The solution and spectrum of the problem of a rigid rotator are found. It is shown that the spectrum of the system has an upper limit that does not depend on the distance between points, in contrast to the spectrum in a flat space.
Technical concept of disposal for very low-level, low-level and short-lived intermediate-level radioactive waste of the Belarusian NPP
Authors: Zhemzhurov M. L. , Kuzmina N. D.
Published: April 2022

The paper briefly presents the principal technical solutions for radioactive waste disposal facilities (RWDF), as well as for auxiliary buildings, structures and engineering systems for this RWDF, which ensure safe and economically feasible disposal of radioactive waste (RW) generated from two units of the Belarusian NPP during 60 years of operation and during decommissioning. The suggested conceptual RWDF design includes an assessment of its radiation safety during operation and long-term post-closure safety. It is shown that the suggested RWDF concept ensures safe RW disposal in the period of potential danger of RW taking into account possible external impacts of natural and man-made origin. The aggregate technical and economic parameters of the suggested RWDF project were evaluated both in general and for the first stage of construction. The RW total activity that can be placed in a RWDF, provided the long-term safety of the RWDF is ensured, is 9.0·1014 Bq, including α-emitters – 6.8·109 Bq, transuranium radionuclides – 6.8·109 Bq; for very low-level waste – 4.1·109 Bq. Taking into account the achieved level of detailing of technical solutions in the conceptual design, it can be used at the stage of object design.
Influence of properties of the working technological environment on the surface roughness and productivity during magnetic abrasive machining
Authors: Akulovich L. M. , Sergeev L. E. , Dechko M. M.
Published: April 2022

The results of experimental studies of the surface roughness parameters of ball bearing treadmills made of steel SHX-15 and the performance of the magnetic abrasive treatment process depending on the properties of the components of the working process medium are presented. The research used methods of mathematical modeling of the technological process of magnetic abrasive processing, subsequent analysis of the obtained multivariate regression equations to identify the most significant technological factors according to the criteria of their interaction and relative influence on surface roughness and processing performance. The relative total contribution to the change in the roughness of the treated surface (Ra, microns) and processing performance (ΔG, mg/min) was established: single control technological factors affect 29,1 % and 48,2 %, respectively; interacting control technological factors 46.8 % and 45.9 %, respectively. The controlling technological factors in descending order of the degree of influence by generalized significance are arranged in the sequence: hydrogen pH, gradient of magnetic induction B (T/mm), microhardness of abrasive HV (GPa), coolant viscosity γ (cSt), processing time t (s) and magnetic permeability µ (mH/m). The interpretation of the physical mechanisms of interaction of controlling technological factors is given. The obtained results of a quantitative assessment of the relative total contribution of single control technological factors can be used in assigning modes of magnetic abrasive treatment of bearing rings, and their interaction – in studies of the synergism of the parameters of the working technological environment, which allows obtaining a much greater effect than using each parameter separately.
The error of transferring the size of a unit of length – a meter in the nanometer range using the nanomeasuring machine
Authors: Bagdun A. A. , Solomakho V. L.
Published: April 2022

The paper describes the principle of measuring linear dimensions using a nano-measuring machine (NMM), which implements the method of measuring three coordinate axes in the range of 25X25X5 mm3. Sources of non-excluded systematic measurement errors are identified, which are conventionally divided into factors associated with the method of measuring length using an interferometer and factors determined by the design and technological features of the nano-measuring machine. Statistical estimates of the measurement result have been determined and the error in transferring the size – meter length in the nanometer range of measurements has been calculated. The results obtained assert that the nano-measuring machine is a unique tool that allows one to carry out measurements of millimeter dimensions with nanometer accuracy. The results obtained can be used for metrological assessment of the step height and step width, when calibrating measuring instruments in the nanometer range, roughness measures in a large range when calibrating profilometers and contourographs, as well as templates and micrometer objects for measuring high-precision microscopes.
Emulsion Polymers of Carboxymethyl Cellulose and Methyl Methacrylate with Sodium Dodecyl Sulfate Surfactant as Soil Stabilizer
Authors: Abidin Akhmad Zainal , Nuriman R. B. Emil Trisatya , Pradipto Narendra Afian , Putra Ridwan P.
Published: April 2022

Polymer-based materials have gained considerable attention in the road construction sector due to their ability to improve the mechanical strength and durability of soil. In this study, carboxymethyl cellulose-methyl methacrylate (CMC-MMA) emulsion polymers were prepared from different MMA to CMC mass ratios with sodium dodecyl sulfate surfactant. The synthesized materials were homogeneously mixed with laterite soil, and their unconfined compressive strengths were measured using dry and wet methods on a universal testing machine. The results indicated that the polymers were obtained in high yields with optimum solids content. Characterization using Fourier transform infrared confirmed the homopolymerization probability of monomers in the materials with increased MMA fractions. In addition, the viscosity of the graft-copolymers measured at room temperature was in the range of 1.2-3.2 cP. The polymer-stabilized soils exhibited maximum unconfined compressive strengths of 564 and 162 psi, respectively, obtained from the dry and wet methods. In general, the rise of MMA fraction in the treated soils enhanced the compressive strength of the soil, with a slight increase in soil pH. This study unfolds the potential of cellulose-based materials that can be implemented in soil reinforcement technology.
Kinetics and Isotherm Study of Ion Phosphate Adsorption by Lontor Natural Clay
Authors: Ikhsan Nurul , Sekewael Serly J , Hasanela Nurani
Published: April 2022

The clay used taken from Lontor Village, Central Maluku Regency, Banda Besar Island. The clay was activated at 350 °C for 3 hours using a furnace. This study aims to determine the effectiveness of physically activated Lontor natural clay in reducing levels of phosphate ions using the adsorption method. The adsorption capacity of clay is determined based on two parameters. The parameters are the optimum contact time used are 2, 3, 4, 5, and 6 hours and variations of the concentration are 10, 20, 30, 40, and 50 mg/L of phosphate. The concentration of phosphate adsorbed on the clay was measured by a UV-Vis spectrophotometer at a wavelength of 665 nm. The results showed that the optimum conditions for the adsorption of phosphate ions by Lontor natural clay were obtained at the contact time of 5 hours and the concentration of 40 mg/L. The adsorption of phosphate ions by Lontor activated natural clay followed the pseudo-second-order Lagergren adsorption kinetics model with a rate constant value (k2) of 3.39 x 10-1 g mg-1 min-1, and following the Freundlich adsorption isotherm models with a correlation coefficient (R2), Freundlich constant (Kf), and n values, respectively are 0.9513; 0.57 mg1-1/n L1/n/g, and 0.40 g/L.
Sterol Constituents of Sea Fan (Gorgonia mariae) as Potential Candidates of MPro Protein SARS-CoV-2 Inhibitor: in silico Study
Authors: Kelutur Faruk Jayanto
Published: April 2022

Ethnobotanically, sea fan was a group of gorgonian coral that have used the Maluku people as medicinal ingredients with secondary metabolites containing sterols, terpenoids, and alkaloids that have anti-inflammatory, anti-viral, anti-cancer, analgesic, gastroprotective, anti-bacterial, anti-cancer, and anti-fouling agents. However, the effectiveness of sterols as anti-viral SARS-CoV-2 has not been reported, so research was needed. The initial stage of targeting (SwissTargetPrediction), binding affinity (Autodock Tools 4.2), and amino acid interactions (Discovery Studio 2016 Client®). The route of administration, pharmacokinetic properties, and acute oral toxicity (LD50) were predicted by Lipinski's rule of five, pre-ADMET, and ProTox-II. The results of target class obtained probability of 10.6% (4,24-dimethyl cholesta-7,22-dien-3ß-ol and 4,24-dimethyl-22-dehydro-cholestanol) and 11, 8% (dinosterol). Binding affinity (ΔG, kcal/mol and Ki, nM) potentially 4,24-dimethyl cholesta-7,22-dien-3ß-ol (-9.90; 55.13) > dinosterol (-9.77; 68.66) > 4,24-dimethyl-22-dehydro-cholestanol (-9.48; 113.33), respectively with the crucial amino acid, Asp187. The test compound has a log P value > 5, so solubility must be considered. Pre-ADMET showed an excellent disposition as a drug and was not mutagenic and carcinogenic. However, the distribution of plasma proteins and the dose of LD50 need to be considered. Thus, sea fan sterols have potential as MPro protein inhibitors.
EFFECTIVITY OF MULTIFUNCTION HERBAL TOOTHPASTE CONTAINING BAY LEAF (EUGENIA POLYANTHA WIGHT) EXTRACT AS EXTRINSIC STAIN REMOVAL ON TEETH AND DENTURE
Authors: Annisa Mutiara , Nuryanti Archadian , Dewi Anne Handrini
Published: April 2022

Background: White teeth colour influence aesthetical appearance which leads to self-confidence and quality of life. Extrinsic stain is the most common aetiology of teeth discoloration, which caused by widely consumed products such as tea, coffee, and tobacco. It also formed on denture and cause negative impacts. Commercial extrinsic stain removal toothpastes only indicated for teeth and contain chemical active agent with undesirable effects. Aim of this study is to determine effectivity of bay leaf (Eugenia polyantha Wight) extract as toothpaste active agent for extrinsic stain removal on teeth and dentures.Method: Pictures of teeth, artificial teeth, and acrylic resin base taken before experiment, after stain induction (using 25g of tea in 100ml of 100oC water for 7 days, tea solution replaced every 24 hours), and after brushing. Toothpastes used for brushing were no active agent basic formulation toothpaste, bay leaf extract toothpastes at 5%, 10%, 15% concentrations, and commercial stain removal toothpaste as positive control. Specimens were brushed using automatic brushing machine for 70 seconds/surface, using 250g load, and speed 5 movements/sec. Colour index analysis of specimensâ€™ pictures were computerized and analysed using CIELAB method to obtain L-value of extrinsic stain removal. Data analysis performed using one-way ANOVA (Î±=0.05).Result: There is effect of toothpaste containing bay leaf extract 15% to remove extrinsic stain both on teeth, artificial teeth, and acrylic resin base according to one-way ANOVA.Conclusion: Bay leaf extract is effective and potential to be used as toothpaste active agent for extrinsic stain removal on teeth and denture.
Optimization of parameters of quiet permanent magnet synchronous motor for linear drive of long-stroke single-stage piston compressor
Authors: Tatevosyan A. A.
Published: April 2022

The article proposes a solution to the problem of optimizing the magnetic system design of a low-speed synchronous motor with permanent magnets (PMSM) as a part of a linear drive of a single-stage piston compressor that is promising for use in compressor construction for a given law of motion of the moving part. The maximum efficiency of the electromechanical converter is used as an optimality criterion. By solving the optimization problem, the relationship between the design parameters and the energy performance of the PMSM was established in an analytical form. The substantiation of the maximum possible efficiency of the PMSM for the sinusoidal and non-sinusoidal laws of motion of the inductor is given.

PURPOSE: Obtaining a solution to the problem of optimizing the magnetic system design of a low-speed PMSM as a part of a linear drive of a single-stage reciprocating compressor for a given law of motion of the moving part that meets the criterion of maximum efficiency of an electromechanical converter.

METHODS: The methods of the theory of electromechanical energy converters, theoretical electrical engineering, mathematical modeling, optimization methods, variational, differential and integral calculus, as well as experimental methods are used.

RESULTS: The results of an experimental study of the developed prototype of a low-speed SDPM as a part of a linear drive of a long-stroke single-stage reciprocating compressor are presented.

CONCLUSION: The highest efficiency of the PMSM is achieved when the current in the armature winding changes with time in direct proportion to the speed of the inductor. To ensure this mode, it is proposed to use an open-source frequency converter, which makes it possible to implement the time dependence of the current in the armature winding in accordance with the given law of motion of the moving part. The PMSM is controlled by a frequency converter based on structural models created in the MexBios environment.
Analysis of the structure and energy parameters of the electrical complex (EC) of gas complex №1 «Gazprom dobycha Yamburg» LLC
Authors: Maskov L. R. , Kornilov V. Y.
Published: April 2022

THE PURPOSE. Consider the structure of the centralized and autonomous power supply system for gas field (GF) №1 of «Gazprom dobycha Yamburg» LLC. Perform the calculation of the main energy indicators (consumed active, reactive and apparent power, power factors, reactive power factors) for each section of busbars (SB) of complete transformer substations (CTS) according to wattmetrograms taken by electromechanical meters on the linear cells of closed switchgear (CS) during a calendar year. Calculate the peak current of a group of electric receivers (ER) for each CS CTS. To analyze the features of the functioning and the load factor of the autonomous power supply system from diesel power plants (DPP) according to the schemes: “one generator - a separate group of electrical consumers” (EС-1) and a single generation center with a cascade (ring) switching circuit (EС-2). Compare the annual fuel consumption of diesel power plants with EС-1 and EС-2 by monthly load factors.

METHODS. When solving the problem, an approximate method was used to determine the energy indicators of electrical loads at each CS CTS and the load factors of DPP according to the readings of active power (wattmetrograms) for the period under consideration.

RESULTS. The article describes the relevance of the topic, considers the features of the construction and functioning of the EC for a centralized and autonomous power supply system. An approximate calculation of the energy parameters at the each CTS SB of the integrated gas treatment plant (IGTP) and the booster compressor station (BCS) was made based on the readings of the active power consumed during the period under consideration. This article discusses the fuel and energy characteristics and features of the functioning of DPP. The monthly and annual weighted average load factors were calculated and the peak currents of the ER group were determined for each DPP. The calculation of the annual fuel consumption of DPP with EС-1 and EС-2 has been made according to monthly load factors.

CONCLUSION. As a result of the analysis of the structure and energy characteristics, the features of the functioning of the centralized and autonomous power supply system were revealed, which determine the range of problems and shortcomings that require further research and study, with the subsequent development of a set of measures to improve the energy efficiency of the EC.
Penanggulangan Erosi Tebing Sungai dengan Penerapan Konsep Bangunan Hijau Melalui Penanaman Rumput Vetiver
Authors: Ikhsan Muhammad , Silvia Cut Suciatina , Yusrizal Yusrizal , Chaira Chaira
Published: April 2022

Gerusan tebing sungai merupakan salah satu permasalahan yang mengancam kestabilan tebing sungai, gerusan ini banyak menimbulkan kerugian yang berdampak terhadap keberlangsungan lahan yang ada disekitar sungai, tidak sedikit perkebunan dan perumahan warga yang tinggal di pinggir sungai. Desa Alue Buloh, merupakan salah satu desa yang terletak di pinggir sungai Krueng Ineung Daerah Aliran sungai (DAS) Krueng Seunagan merupakan salah satu desa yang berada di Kabupaten Nagan Raya yang terhubung dengan jembatan ke desa Latong, terjadinya gerusan dasar sungai dan gerusan lokal yang sudah sangat mengkhawatirkan. Gerusan tebing sungai merupakan hal yang sangat mengancam bagi lahan yang ada disepanjang sungai tersebut, jika dibiarkan gerusan tersebut dapat terus menerus mengikis lahan penduduk, Pengabdian ini dilakukan untuk memberikan ilmu pengetahuan kepada masyarakat metode yang relative mudah dan ramah lingkungan dalam usaha melindungi tebing sungai dari ancaman gerusan oleh aliran air sungai tersebut, pelatihan dikemas dengan kegiatan sosialisasi dimana dalam kegiatan ini masyarakat/mitra diberikan materi dan cara pembibitan serta penanaman langsung rumput vetiver yang menjadi tumbuhan yang akan membantu mengurangi dampak gerusan tersebut. Luaran yang dicapai dalam pengabdian ini adalah peningkatan kapasitas kelompok masyarakat dalam hal penanggulangan erosi tebing sungai secara vegetative dan melakukan pembibitan vetiver dan penanaman langsung pada pinggir sungai.
Pembuatan Penahan Erosi Tebing Sungai Tipe Hexagonal Sebagai Wadah Penanaman Rumput Vetiver dalam Penerapan Konsep Bangunan Hijau
Authors: Azwanda Azwanda , Opirina Lissa , Ikhsan Muhammad , Reffiyani Meidia
Published: April 2022

Tebing sungai merupakan salah satu bagian yang paling rentan mengalami pengikisan oleh aliran air apabila tidak diberi pengamanan tebing yang baik. Pembangunan dinding penahan pinggir sungai merupakan salah satu upaya untuk mencegah erosi, selain itu juga untuk menambah estetika. Memperkenalkan cara membuat penahan erosi tebing sungai tipe hexagonal sebagai wadah penanaman rumput vetiver dalam penerapan konsep bangunan hijau pada kelompok masyarakat Desa Alue Buloh, Kabupaten Nagan Raya. Salah satu upaya pengabdian berbasis riset, berdasarkan kondisi permasalahan di atas konsep dasar yang ditawarkan adalah penanganan tebing sungai dengan konsep Grey and Green Construction in Collaboration yang merupakan gabungan antara bangunan pelindung tebing sungai dari beton dan tumbuhan/vegetasi yaitu jenis rumput vetiver. Metode bangunan hijau yang diterapkan adalah dengan cara membuat penahan tebing seperti pot yang dapat menjadi wadah penanaman rumput vetiver. Sehingga gabungan antara bangunan pelindung tebing sungai dari beton dan tumbuhan/vegetasi yaitu jenis rumput vetiver dapat mengatasi laju erosi sungai dengan konsep bangunan hijau. Penerapan bangunan hijau ini dilakukan secara tepat guna dengan mengupayakan penggunaan biaya yang cukup murah serta efisien, tapi tetap memiliki manfaat yang sangat besar dalam penanggulangan erosi tebing sungai, sebagai upaya dalam manjaga ekosistem alam, mengurangi laju erosi tebing sungai dan peningkatan perekonomian masyarakat.