bluuebunny/crossref_metadata_2025 huggingface dataset:
Uutisia lyhyesti
Authors: Ala-Kyyny Juuso
Published: April 2024

Tieteellisten kirjastojen uutisia.
PEMBATALAN SERTIFIKAT YANG DITERBITKAN DARI JUAL BELI YANG MELAWAN HUKUM (STUDI PUTUSAN NO.1/Pdt.G/2015/PN.Mrj)
Authors: Aslam Farsya Fachira , Setiawati Anda
Published: April 2024

In reality, non-title holders often discover incidents of land sales and purchases. The land sale and purchase case involving H.M. Noor Habdi and Khairul Mahdi involved a parcel of land registered in Tirani's name as the object. Even though H.M. Noor Habdi did not actually own the property, he secured a land certificate from Tirani's husband in order to obtain a bank loan. However, H.M. Noor Habdi did not return the certificate he had borrowed after Tirani's spouse passed away; instead, he changed the name to his own and sold it to his son, Khairul Mahdi. Tirani and her kids, believing their rights had been violated, launched a case on the grounds urged that the land sale and purchase agreement be terminated after being accused of an illegal act. The findings of the study, the discussion and the conclusion led the judges on the Muaro District Court panel to issue Decision No. 1/Pdt.G/2015/PN.Mrj, which declared that H.M. Noor Habdi's legal transaction of buying and selling Khairul Mahdi was invalid and had no legal standing. However, Tirani's side had file a lawsuit with the State Administrative Court (PTUN) in order have the certificate that had been granted Khairul Mahdi's name revoked.
PEMBERLAKUAN ASAS CABOTAGE PERAIRAN SULAWESI TENGGARA BERDASAR-KAN INPRES JO UNDANG-UNDANG PELAYARAN
Authors: Beby Ansel Apriliya Imran  , Elfrida Ratnawati Gultom
Published: April 2024

Indonesia has vast waters and the cabotage principle applies to connecting waters in Indonesia. The research’s problem: how to enforce cabotage principle in Southeast Sulawesi waters and how to empower Indonesian shipping in Southeast Sulawesi waters after cabotage principle enactment based on Presidential Instruction Number 5 of 2005 concerning Empowerment of the National Shipping Industry in conjunction with Law Number 17 of 2008 concerning Shipping. This research is normative and descriptive analytical legal research, using primary data to support secondary data, primary and secondary legal materials. The data is analyzed qualitatively and the conclusions drawn using deductive method. The conclusion is that the application of cabotage principle regulations in Southeast Sulawesi waters are going well, but cabotage principle has not carried out optimally. The positive impacts of cabotage principle implementation are: growing the country's economy, growing local companies, increasing the empowerment of human resources and reducing pollution and the negative impacts are in the form of a limited types of ships, one of which is mother vessels which are very few owned by Indonesia and because of this, the use of foreign ships is still being carried out due to the limited types of ships and high demand for services.
PERAN KEMENDAGRI DALAM PENUNJUKKAN KEPALA DAERAH SEBAGAI KETUA PENANGANAN PANDEMI COVID-19 JAKARTA
Authors: Immanuel Ignatius  , Reni Dwi Purnomowati
Published: April 2024

The President receives assistance from the Ministry of Home Affairs (Kemendagri) in managing the Covid-19 distribution. The formulation of the issue is a means of establishing authority for the appointment of Task Force Officers for the Acceleration of Handling Corona Virus Disease 2019 (Covid-19) in accordance with Presidential Decree Number 7 of 2020 and Minister of Home Affairs Circular Letter Number 440/2622/SJ, as well as the Ministry of Home Affairs' attempts to remove barriers that Regional Leaders faced in carrying out the Acceleration Management of Corona Virus Disease 2019 (Covid-19) in DKI Jakarta. Using secondary data for descriptive analysis and qualitative deductive reasoning, the research method is juridical-normative. Research findings, analysis, and conclusions: The Ministry of Home Affairs' involvement in appointing Regional Leaders to delegate authority can hasten the management of the COVID-19 epidemic while still giving due consideration to the economic issue. Regional leaders be able to carry out plans that strike a balance between economic and health-related considerations as executors of regional government issues. Making Joint Decrees of the Ministers of Home Affairs and Finance Number 119/2813/SJ and Number 117/KMK.07/2020 focused on health, social assistance, and saving the economy in their respective regions, notably MSMEs, is being attempted.
PERLINDUNGAN HUKUM TERHADAP PEMEGANG TANAH HAK ADAT
Authors: Benyamin Tomas Setiawan  , Endang Pandamdari
Published: April 2024

As Lahat Regency's Indigenous Peoples, the Dalian have inherited land from their ancestors. The land belongs to the late Maijah binti Jamun, and according to the customary certificate with the number 038/P/TS/2018/1994, she had the status of having customary land rights. By entering into an agreement and a contract with the late Maijah Binti Jamun, Arta Prigel has control over the customary land that is owned by Dalian as the plaintiff and the land certificate has been issued as a Cultivation Right. However, the agreement was not paid for until a lawsuit was filed by Dalian as well as one of the heirs. The issue is whether DALIAN as successors' possession of land with customary ownership rights complies with national land law according to certificate of traditional land rights 038/P/TS/1994. Based on SUPREME COURT DECISION 3173 K/Pdt/2019 by PT. Artha Prigel, how is the legal protection of owners of traditional property rights in connection to land tenure. This style of legal study is descriptive normative. Secondary data is what was used.
JUNIOR HIGH SCHOOL ENGLISH TEACHERS’ PLANNING ON MERDEKA CURRICULUM
Authors: Latifa Helmia , Ratih Koesoemo , Maryadi Maryadi
Published: April 2024

The purpose of this study was to determine teachers’ planning for implementing Merdeka curriculum in teaching English. This research is phenomenological research. Researchers used observation, interviews, and documentation to obtain data. The research data are statements from English teachers, principal, and deputy principals in the field of curriculum, pictures from observations, and documentation. The results of this study showed that the teacher made four plannings` for the implementation of Merdeka curriculum. These plannings are assessment, teaching device, flow of learning objectives, and teaching modules. Therefore, these plannings are carried out by the teachers so that the implementation of Merdeka curriculum in learning English is successful. School needs to develop professionalism for teachers to increase understanding of Merdeka curriculum, especially in English language learning
TEACHERS’ VOICES IN WORDWALL MEDIA APPLICATION IN TEACHING YOUNG LEARNERS CONTEXT: A NARRATIVE INQUIRY
Authors: Insani Afra Nadya Putri , Romadhon M Galuh Elga , Heriyawati Dwi Fita
Published: April 2024

Teacher of English Young Learner must be aware the students need in their learning, especially on using online media learning. Many researchers were conducted research on utilizing online media, Wordwall. It is an online based game tool. This research was aimed to investigate teacher’s voice in Wordwall media application in teaching young learners. This research used narrative inquiry. This research analyzed the teacher’s perception on using Wordwall media. There is a lack of study on teacher of English Young Learner’s perception of Wordwall.net as the media in learning vocabulary, despite the fact that numerous research studies have examined the usage of web tools connected to vocabulary and perception of Wordwall. This research was only structured interviewed the teacher of English Young Learner in one of the Elemantary school of Malang. The collected data then described. The study found that teachers had positive perceptions of using Wordwall to learn vocabulary. Teachers found it to be a useful tool for assessing student learning. The study concluded that Wordwall is a valuable tool for vocabulary learning. It is engaging, fun, and effective in improving learning outcomes.
RELATIONSHIP BETWEEN EFL PRE-SERVICE TEACHERS’ SELF-EFFICACY AND THEIR EPISTEMIC BELIEFS
Authors: Injiya Rida Rohmata , Emaliana Ive
Published: April 2024

Nowadays, English is an essential language that must be mastered and has been studied for many years as a foreign language in many countries in the world. Specifically, English pre-service teachers' ability to teach students English as a foreign language requires self-efficacy and epistemic beliefs that can support students’ 21st century skills. Self-efficacy and epistemic beliefs are related to individual differences in psychological domains that can affect learning achievement. An investigation of the relationship between self-efficacy and epistemic beliefs of pre-service teachers in a reputable university in Malang, East Java was conducted in this study. This study examined the relationship between pre-service teachers' self-efficacy and epistemic beliefs. The method of this research is correlational study. A total of 85 pre-service teachers completed the self-efficacy and epistemic beliefs questionnaires. SPSS was used to analyze the questionnaire filled out by the participants and determine the results. As a result of SPSS's analysis, self-efficacy is positively correlated with epistemic beliefs, which implies a correlation in both areas. The findings of the correlation coefficient is -0.528, the correlation between self-efficacy and epistemic beliefs is negative and it means that the higher EFL self-efficacy the simpler their epistemic beliefs.  A correlation from SPSS's analysis indicates that self-efficacy and epistemic beliefs have a medium relationship.
THE IMPACT OF PROJECT-BASED LEARNING AND PROBLEM-BASED LEARNING ON WRITING SKILLS: A COMPARATIVE STUDY ON EXTROVERTED AND INTROVERTED INDONESIA EFL STUDENTS
Authors: Prabowo Jumbuh , Hartono Rudi , Rukmini Dwi , Saleh Mursid
Published: April 2024

This study aimed to investigate the effectiveness of Project-Based Learning (PjBL) and Problem-Based Learning (PBL) on enhancing the writing skills of students, considering their extroverted or introverted personality traits. The objective was to explore how different teaching strategies might yield varying results depending on the students' personalities. Employing a quasi-experimental design with a time-series approach, the research methodology included pre-and-post assessments, classroom observations, self-assessment tools for evaluating students' writing competencies, and questionnaires to determine their preferences. The research utilized three distinct forms of tests, revealing that the significance (Sig.) value stood at 0.005, which is below the 0.05 threshold for significance. This indicates a differential impact of PjBL and PBL on the writing abilities of introverted students. Conversely, for extroverted students, the significance value derived from the data was 0.300, exceeding the 0.05 level. This outcome suggests acceptance of the null hypothesis (Ho) and rejection of the alternative hypothesis (Ha), meaning there was no discernible difference in the effectiveness of the two strategies for extroverted students. Participants in the study were fourth-semester English Department students at the University of Sultan Ageng Tirtayasa (Untirta). The findings revealed that introverted students experienced variations in their writing skills when exposed to both PjBL and PBL, with these methods significantly influencing their writing abilities. In contrast, extroverted students did not show notable differences in their writing skills under the same teaching strategies, indicating that both PjBL and PBL were equally effective for them. This study underscores that the choice of teaching method can have varying impacts on the writing skills of students, particularly when considering their introverted or extroverted nature. It highlights that extroversion and introversion may play a role in how students respond to different educational approaches in the context of enhancing their writing skills.
UNVEILING STUDENT PERSPECTIVES: EXPLORING THE IMPACT OF GAMIFICATION IN ENGLISH LANGUAGE TEACHING
Authors: Yazid S Rizal , Heriyawati Dwi Fita , Mistar Junaidi
Published: April 2024

This study examines the impact of gamification on English language teaching, focusing on student engagement, motivation, and overall learning experiences. To address a research gap in understanding the specific effects of gamified learning environments in this context, this qualitative research adopts a case study design, employing semi-structured interviews with ten students attending Islamic Senior High Schools. Thematic analysis reveals three main themes: Positive Impact on Engagement and Attitude, Motivation Through Competition, and Effective and Enjoyable Learning Activities. Participants have observed increased class attendance, a boost in their enthusiasm, and positive attitudes toward learning English, attributing these changes to gamification. The findings indicate that gamification not only positively has a beneficial impact on both student engagement and motivation but also enhances the overall learning environment. Implications for educators and policymakers involve the potential integration of gamified strategies to create dynamic, attractive language learning environments. The study provides new insights into the existing body of knowledge on the use of gamification in education, emphasizing the need for future investigation into its long-term effects on language competency and cultural contexts.
Intangible space as a new form of crime scene: doctrinal aspect
Authors: Lihachev Nikita Aleksandrovich
Published: April 2024

The article discusses the problems of defining cyberspace and information space as a possible place of commission of a crime or other optional sign of an objective party in relation to specific acts provided for by the norms of the Special Part of the Criminal Code of the Russian Federation. The properties and characteristics of cyberspace are determined, and a comparison is made with the intangible and information space. The problem of determining the connection of cyberspace to specific objects of the material world – computer media, servers, the impossibility of the existence of cyberspace in isolation from three-dimensional reality at this stage of scientific and technological development, which predetermines the criminal legal classification of crimes, is noted. The scientific novelty of the work lies in the fact that the article substantiates an innovative approach to determining the place of intangible space in the system of composition characteristics. The author notes that the current realities force us to take a fresh look at the perception of the content of such a sign of the objective side of the crime as the place where the latter was committed, since its traditional understanding from the position of an object of material reality – a specific section of the earth’s surface, which has its own geographical landmarks and coordinates – does not meet the modern needs of the theory and practice of applying criminal law. As a result of the research, the author concludes that the development of computer technologies, communications and the information and telecommunications network “Internet” contributed to the emergence of a new – information – space, which by its nature is intangible and actually does not exist in a three-dimensional dimension.
Intervention with Purple Okra Pudding and Supplement to Improve Antioxidant Status in Healthy Adults
Authors: Damayanthi Evy , Mira Dewi  , Muhammad Aries  , Nasution Zuraidah
Published: March 2024

This research aimed to analyze the potency of purple okra-based products in improving the antioxidant status of healthy adults. Thirty adults with high body fat percentages were allocated into three groups: the first group was treated with 100 g of purple okra pudding/day, the second group was provided with a purple okra extract supplement that contained 3.80 g of extract/day, and the third group was a control group. The intervention was carried out for 28 days. All subjects were exposed to nutrition education, and data on their characteristics, food intake, and physical activity level were collected. The results showed that purple okra pudding and supplement had antioxidant activity of 0.39 and 455.39 mg AEAC/g extract, IC50 of 543.79 and 71.78 ppm, and total phenol of 6.21 and 24.49 mg GAE/g extract, respectively. There were significant differences among subject groups in energy, protein, and fat intake as well as physical activity level. The group treated with purple okra pudding showed a significantly higher ΔSOD after the intervention, most probably due to the role of antioxidants contained in purple okra in upregulating antioxidant defense. In contrary, there was a declining trend of ΔSOD in the group treated with purple okra extract supplement. The different effects observed between the two groups might be due to the different phenol contents between the two intervention products. This study showed that purple okra has the potential as a functional food and health supplement in improving the antioxidant status of healthy adults with high body fat percentages as indicated by a higher change of SOD level (0.08 u/mL) in comparison to the control (-0.07 u/mL).
Alaskan Russian: the history of field trips to the former overseas colony of Russia
Authors:   ScanEx ltd, Moscow, Russia, Raskladkina M.K. , Bergelson M.B. , Kibrik A.A. ,   National Research University Higher School of Economics, Moscow, Russia,   Institute of Linguistics of the Russian Academy of Sciences, Lomonosov Moscow State University, Moscow, Russia
Published: April 2024

The article describes the history of studying Alaskan Russian (AR), a language that emerged from interactions between Russian furtraders and the aboriginal population during the Russian colonization of Alaska. In the late 18th century, AR became the native language of mixed-race persons who were officially referred to as “creoles” in the 19th century. AR was actively used in Alaska until the mid-20th century. Currently, several advanced-age individuals retain linguistic competence in AR. Since 1997, the authors have organized six field trips to the places of the historical existence of AR. The article follows the chronology of these trips, explaining their goals and findings. Interdisciplinary studies allowed the authors to compile a dictionary of the Ninilchik variety of AR, describe its phonetic and grammatical features, and collect corpora of audio and video recordings and sociolinguistic interviews to explore various linguistic practices. These corpora include over 90 hours of recordings from over 30 consultants from 12 locations in Alaska. Over 100 additional interviews were found in the repositories of other projects on the oral history of Alaska. Furthermore, several archival documents were discovered revealing the written mode of AR, previously only known as a spoken language. The anthropological research conducted in the Kodiak archipelago started the systematic historical study of the Russian language in Alaska, including its role, place, significance, practices, and functioning in the life of Russian fur-traders and their descendants throughout the colonization of Alaska until the present time, taking into account its interactions with native languages and English.
The structure of the Altai dialogue and means of expressing verification
Authors:   Institute of Philology of the SB RAS, Novosibirsk, Russian Federation, Dobrynina A.A.
Published: April 2024

This study examines the communicative structure of utterances and word order in the Altai language, specifically in question-answer dialogues. The focus is identifying the means of verification in the Altai language by analyzing verificative utterances. Verificative utterances contain significant information that reflects some fact of objective reality, with relevant information emphasizing the most important aspect of this significant information. The relevant information may cover all the significant information or focus only on one aspect. It may also have the character of a new message or may verify the reliability of some already-known fact or event. The analysis reveals that the frequency of informative utterances is higher compared to verificative utterances in the Altai language. However, special verificative utterances are rather widespread. Their communicative-syntactic scheme is identical to that of corresponding special informative types. Still, they convey the relevant information of a different character. Special informative sentences report something new about the utterance theme. In special verificative sentences, both the theme and the rheme are set by the preceding context, and the essence of the relevant information is to confirm or deny the reliability of the supposed fact or event. The answer in the Altai language, which is closely linked to the preceding question, constitutes the final component of the entire dialogic unity in terms of structure and communication. The analysis identified four characteristic types of special verificatory statements in the Altai language: subject, predicate, object, and circumstantial.
The role of Tuvan writers in language construction
Authors:   The national school development Institute of the Republic of Tyva, Kyzyl, Russian FederationThe national school development Institute of the Republic of Tyva, Kyzyl, Russian Federation, Kherel A.Kh. , Bavuu-Syuryun M.V.
Published: April 2024

The authors of the article have identified six stages of language construction in Tuva. The first stage (1921– 1929) was marked by the pursuit of a basis for developing a written language, with the old-written Mongolian language functioning as an official language at that time. In 1930, out of various projects, the one that received support was a project developed by scientists from the Soviet Union. The second stage (1930–1944) was to spread the Tuvan script created based on the Latin alphabet to the masses and to launch a cultural revolution. The third stage (early 40s – early 60s) began in 1941 when the decision was made to transition to the Cyrillic alphabet. This year, Ulug-Khem, a literary, artistic, and socio-political magazine of the Union of Writers of Tuva, began to be published. The third stage was completed when the academic grammar of the Tuvan language appeared, currently the “Fundamentals of Tuvan Orthography.” The significance of the fourth stage lies in the creation of a considerable body of texts in the Tuvan language, encompassing various stylistic affiliations. The fifth stage (1990–2010) can be referred to as the era of democratization when the Law on Languages was approved in the Republic of Tuva. From 2010 to the present, the sixth stage of language development in Tuva has been characterized by efforts to reinforce the status of the language and ensure its survival in the face of globalization and urbanization.
Subjects in emotion causation constructions in Buryat
Authors:   Institute for Finno-Ugric / Uralic studies, Ludwig Maximilian University, München, Germany, Skribnik E.K. , Darzhaeva N.B. ,   Institute for Mongolian, Buddhist and Tibetan Studies of the Siberian Branch of the Russian Academy of Sciences, Ulan-Ude, Russian Federation
Published: April 2024

This article examines the emotion causation constructions (ECC) in Buryat as a systemic means for the speaker to direct attention toward various components of the Stimulus. The most informatively significant component functions as the subject of ECC: it can be the Stimulus, represented by a clause or a noun phrase (NP), or its Agent, referred to as the Causer. Concrete nouns are extremely rarely used as subjects. There are two types of Stimuli: the events perceived directly or the information about these events, with the latter being even somewhat more frequent than the former, indicating the importance of a communicative factor in a language community. The analysis confirms the assumption that all subject types relate to the Stimulus, but the attention focus can vary. It can be directed to the event itself, its presentation forms ranging from a clause to a noun, the source of information about it, the Agent, and rarely the Theme. The prevalence of antroponymic names as subjects in ECCs can be explained by the psychology of communication, with interlocutors usually focusing on other individuals involved in emotion-causing events. Verbalization of emotions caused by inanimate objects is atypical for the Buryat language system. In unconventional scenarios, basic emotive verbs can be employed with inanimate subjects, provided that the speaker’s attention is redirected away from the Agent.
Theoretical assessment of the effectiveness of application single-stage long-stroke piston compressors in refrigeration and hydrocarbon gas liquefaction systems
Authors:   OJSC «Sibneftetransproekt», Yusha V. L.
Published: April 2024

The analysis of the main modern technologies for obtaining low temperatures and liquefying hydrocarbons using compressor equipment is presented and the most significant results of research in the field of low-flow compressors based on low-speed, long-stroke piston stages are presented. A method for calculating an ideal vapor-compression refrigeration cycle is presented, adapted to the object under consideration, taking into account the possibility of implementing quasi-isothermal compression. A comparative computational analysis of temperature conditions and thermodynamic efficiency of a two-stage refrigeration cycle and single-stage refrigeration cycles is carried out during adiabatic and quasi-isothermal compression processes in the boiling temperature range 278 K ... 198 K. It is shown that in terms of the discharge temperature and coefficient of performance, a single-stage vaporcompression ammonia refrigeration machine based on a low-speed quasi-isothermal stage is comparable to a similar two-stage machine based on adiabatic stages. This allows, in relation to actual objects — small refrigeration machines and installations, to predict both the energy and technical advantages of using a single-stage scheme based on low-speed, long-stroke piston compressors. In addition, it has been shown that the effective use of such a compressor is also possible in hydrocarbon liquefaction systems, while ensuring their safe temperature conditions in a wide range of atmospheric temperatures.
Conditionally dynamic analysis of the centrifugal compressor operation in the aggregate recirculation line
Authors:   Omsk State Technical University, Vanyashov A. D.
Published: April 2024

The procedure for conditionally dynamic (quasi-dynamic) hydraulic and thermal calculation of recirculation lines of compressor stations has been developed. As an example, the solution to the problem of reconstruction of the linear compressor station of the main gas pipeline is considered. Using the developed methodology, options for upgrading the existing recirculation line in order to increase its throughput are proposed. The gas temperature change in the recirculation line is analyzed due to various factors (heat exchange with soil, throttling) at the starting modes of constant and variable rotations of the compressor rotor. The analysis of the change in the recirculation cycle time and the rate of temperature growth at the compressor inlet per unit time is performed.
Development of the mathematical model for heat recovery system for mobile compressor stations based on refrigeration machine
Authors:   Omsk State Technical University, Chernov G. I. , Evdokimov V. S. ,   Omsk State Technical University, Kalashnikov A. M. ,   Omsk State Technical University, Kabelskiy V. I. ,   Omsk State Technical University, Zhukov А. О. ,   Expert-Analytical Center, Futin V. A. ,   Kazan National Research Technical University named after A. N. Tupolev – KAI
Published: April 2024

The article presents a mathematical model of a mobile compressor station with a heat recovery system based on a refrigeration machine. The study outlines the heat recovery system scheme, based on which the mathematical model is developed. The model includes known thermodynamic relations for the heat load on heat exchangers, power consumed by the compressor, and the coefficient of performance of the refrigeration machine. The presented model allows for determining the efficiency of the system and conducting calculations of the equipment and units comprising it.
Determination of damage to undeletable and deletable windows of promising penetrators from the impact of high-speed regolith particles during impact penetration into the soil of the Moon
Authors:   Lavochkin Association, Dobriza D. B. , Leun E. V. ,   Lavochkin Association
Published: April 2024

The article discusses promising penetrators with non-removable transparent and removable opaque windows, created mainly from corundum and ice composite, respectively. Their use will expand the scientific research program due to visualization capabilities for video recording of the movement of the penetrator in the subsurface layers of soil and their optical methods of studying, as well as direct contact with them. The calculation method and the calculated values of damage to these windows from the impact of spherical particles of lunar regolith with diameters of 1,0 and 1,5 mm, colliding with them at speeds of up to 1 km/s in the angular range from 70° to 80°, obtained using numerical modeling or based on an engineering model, are discussed.
Design and manufacture of parts and assemblies of aerospace structures made of composite materials in conditions of additive manufacturing
Authors:   Samara National Research University, Firsin A. O. , Vdovin R. A. ,   Samara National Research University, Goncharov E. S. ,   Samara National Research University, Markanov I. D. ,   Samara National Research University
Published: April 2024

This article raises the topic of modernization of existing technological processes of procurement production in terms of eliminating the expensive and lengthy stage of designing and manufacturing metal molds and the introduction of 3D printing technologies. The article provides information about 3D printing technology based on the extrusion method. Information is provided on the main stages of designing the tooling for the «Insert» part, taking into account the features and limitations associated with printing on 3D printers. As part of the study, the roughness and shrinkage of test samples are analyzed, which are made on a 3D printer from various composite materials.
The influence of surface modification on the morphological characteristics and microhardness of HVG steel
Authors:   Omsk State Technical University, Teploukhov A. A. , Semenyuk N. A. ,   Omsk State Technical University, Teryokhina A. E. ,   Omsk State Technical University, Motovilov S. I. ,   Omsk State Technical University, Skakun D. V. ,   Omsk State Technical University
Published: April 2024

During the experiment, carried out in two stages, a thin-film coating of molybdenum is obtained on substrates made of steel grade HVG. The first stage included preliminary ion implantation of molybdenum. The second stage is the production of a thin-film molybdenum coating by balanced magnetron sputtering. During the study using scanning electron microscopy, microphotographs are obtained that visually confirmed the uniformity and homogeneity of the thin-film coating. The values of average surface roughness Sa is obtained by probe microscopy suggest that it decreases after applying a thin-film coating. Using the energy dispersive analysis method, the mass concentration of molybdenum on the surface of the modified tool steel was determined, which is 92,4 %. Experimental modes of modification of KhVG steel with a thin-film coating have been obtained, which have a significant effect on the average roughness and microhardness of its surface. It has been shown that the experimental modes used in the work make it possible to obtain a strengthening of the surface of HVG steel after applying a thin-film coating of molybdenum, with preliminary ion implantation several times. The adhesion force between the thin-film coating and the HVG steel substrate is determined. High adhesion values obtained using the method proposed by Gerald Frankel from Ohio State University indicate good quality of the applied coating. All of the above indicates the prospects of using the above-mentioned methodology in the mechanical engineering industry.
The Role of Arthroscopy in Treating Temporomandibular Joint (TMJ) Disorders: A Comprehensive Literature Review
Authors: Ekram Subia , Tigga Chandmani , Noorani Mohammad Kashif
Published: April 2024

This study was meant to analyze the advantages and limitations of various temporomandibular joint (TMJ) arthroscopy techniques and adaptations outlined in the existing literature. Arthroscopy has emerged as a valuable tool within oral and maxillofacial surgery for diagnosing and treating temporomandibular joint disorders (TMDs). Its noteworthy attributes encompass the ability to perform targeted biopsies simultaneously with minimal and infrequent complications, leading to a notably elevated accuracy in TMD diagnosis. Moreover, the integration of surgical lasers into TMJ arthroscopy has heightened the viability of this surgical approach, resulting in favorable immediate outcomes while maintaining cost-effectiveness. Lastly, the realm of arthroscopy presents unique avenues for research, offering insights into the intricate etiopathogenesis of TMD.
Gene Therapy in Orofacial Pain – An Overview
Authors: Pendharkar Seema Shantilal
Published: April 2024

Disorders involving the jaw, mouth, face, head, and neck are diagnosed, managed, and treated under the dental specialty known as orofacial pain (OFP). As the pathophysiology of OFPs is complex, evidence-based knowledge is essential for treating these illnesses effectively. Since OFP affects the affected individuals’ quality of life, it is crucial to treat patients with success. As a result of the inter-patient differences, treating OFP remains difficult even with the available therapy options. Gene therapy exhibits promising potential in bridging the gap between medicine and dentistry applications. Gene therapy’s dynamic treatment modalities have been developing quickly. Redesigning conventional methods to be more all-encompassing and preventive may eliminate the need for medication and surgery. Genes are sequences of complementary bases that carry the instructions needed to make proteins. One of the most accessible areas for the therapeutic application of gene therapy for various oral tissues is the oral cavity.
Displaced meniscal tears using clock face method: A pictorial essay
Authors: Desai Sanjay , Asthana Karan , G Kamesh
Published: April 2024

In this pictorial essay, we describe the position of the displaced meniscal fragment using the clock face method with an aim to guide the arthroscopist about its exact displaced location. Accurate diagnosis of meniscal tears and their displacements, along with their description, is imperative for arthroscopists to help with appropriate treatment. Using the clock face method for describing the displaced fragment, a uniform description of the displacements can be standardized.
A case report of recurrent optic neuritis in neuromyelitis optica
Authors:   S. Fyodorov Eye Microsurgery Federal State Institution, Moscow, Russian Federation, Ioyleva Е. E. , Safonenko A. Y. ,   S. Fyodorov Eye Microsurgery Federal State Institution, Moscow, Russian Federation, Golubeva O. V. ,   S. Fyodorov Eye Microsurgery Federal State Institution, Moscow, Russian Federation, Mitrofanov A. M. ,   S. Fyodorov Eye Microsurgery Federal State Institution, Moscow, Russian Federation, Potykun I. V. ,   S. Fyodorov Eye Microsurgery Federal State Institution, Moscow, Russian Federation
Published: April 2024

This report presents a clinical case of complex differential diagnosis of optical neuritis in demyelinating disease (multiple sclerosis and neuromyelitis optica). We observed 5 relapses of optic neuritis within 4 years from the onset of the disease, in the absence of both clinical and neuroimaging signs of myelitis. The diagnosis of neuromyelitis optica became valid only after the neurologist identified motor symptoms and the corresponding criteria on the MRI picture. Recurrent optic neuritis, especially bilateral with incomplete recovery of visual functions (despite the absence of acute myelitis and postrema area syndrome and a negative blood test for AQP4-IgG) requires special caution of the doctor and can be considered as a potential case of Devic’s neuromyelitis optica. Key words: devic’s neuromyelitis optica, neuromyelitis optica, optic neuritis, multiple sclerosis, neuromyelitis optica spectrum disorders, AQPR4
Anatomical and functional eye rescue in a child with uveal melanoma
Authors:   S. Fyodorov Eye Microsurgery Federal State Institution, Moscow, Russian Federation, Yarovoy A. A. , Galbatsova A. G. ,   S. Fyodorov Eye Microsurgery Federal State Institution, Moscow, Russian Federation, Malakshinova E. O. ,   S. Fyodorov Eye Microsurgery Federal State Institution, Moscow, Russian Federation, Sobolev N. P. ,   S. Fyodorov Eye Microsurgery Federal State Institution, Moscow, Russian Federation, Yarovaya V. A. ,   S. Fyodorov Eye Microsurgery Federal State Institution, Moscow, Russian Federation, Matyaeva A. D. ,   S. Fyodorov Eye Microsurgery Federal State Institution, Moscow, Russian Federation
Published: April 2024

This article describes the rare clinical case of anatomical and functional eye rescue in a child with uveal melanoma of iridociliochoroidal localization and extrabulbar growth, followed by optical and functional restoration of the eye structures. This work reflects the clinical picture and diagnostic methods necessary for making a clinical diagnosis, and presents the stages and results of surgical treatment. Key words: uveal melanoma, extrabulbar growth of melanoma, block excision, iridolenticular diaphragm
Classification of cytomegalovirus retinitis based on the results of polymerase chain reaction of intraocular fluid
Authors:   D. Rogachev National Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russian Federation, Pershin B. S.
Published: April 2024

Original article Classification of cytomegalovirus retinitis based on the results of polymerase chain reaction of intraocular fluid Boris S. Pershin, Aleksey A. Maschan, Anna B. Smirnova, Olga N. Mironenko D. Rogachev National Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russian Federation Purpose. To present a new classification of cytomegalovirus retinitis. Material and methods. The work includes two parts: 1) determination of the relationship between the dynamics of the results of quantitative polymerase chain reaction of intraocular fluid and changes in the area of retinonecrosis foci; 2) evaluation of possible cytomegalovirus retinitis relapse depending on the results of the polymerase chain reaction of intraocular fluid at the end of treatment. First part: 48 patients with cytomegalovirus retinitis in the early period after hematopoietic stem cell transplantation (81 eyes, 778 observations). Once a week, patients received intravitreal administration of antiviral drugs with intraocular fluid intake until remission of retinonecrosis was achieved. Simultaneously with these manipulations, photoregistration of images of the posterior segment of the eyeball was carried out. The second part: 37 patients (62 eyes and 81 episodes). All episodes of cytomegalovirus retinitis that had at least one observation after achieving remission were studied. Results. The first part: a positive, close to strong correlation was determined between the results of the polymerase chain reaction of intraocular fluid and the area of retinonecrosis during observation of each eye. This makes it possible to evaluate the activity of cytomegalovirus retinitis by the actual results of the polymerase chain reaction of intraocular fluid. The second part: non-zero results of the polymerase chain reaction of intraocular fluid at the end of treatment, as well as in cases where remission is recorded based on ophthalmoscopy data, the probability of relapse of retinonecrosis is greater than in cases of complete elimination of the virus from the intraocular fluid. The proposed classification is suitable for the treatment of cytomegalovirus retinitis.
Features of visual organ pathology in orphan Pierson syndrome due to LAMB2 gene mutation in children: literature review and clinical observation
Authors:   St. Petersburg State Pediatric Medical University of the Ministry of Health of the Russian Federation, St. Petersburg, Russian Federation, Romanova E. A. , Brzheskiy V. V. ,   St. Petersburg State Pediatric Medical University of the Ministry of Health of the Russian Federation, St. Petersburg, Russian Federation, Savenkova N. D. ,   St. Petersburg State Pediatric Medical University of the Ministry of Health of the Russian Federation, St. Petersburg, Russian Federation, Sadovnikova N. N. ,   St. Petersburg State Pediatric Medical University of the Ministry of Health of the Russian Federation, St. Petersburg, Russian Federation
Published: April 2024

Pierson syndrome is an orphan disease with an autosomal recessive mode of inheritance, characterized by combined pathology of the organ of vision, kidneys and central nervous system. Pierson syndrome is caused by a mutation in the LAMB2 gene, mapped on chromosome 3p21, encoding β2-laminin. The pathology of the organ of vision in Pierson syndrome in children is quite diverse. They are characterized by the presence of cataract, posterior lenticonus, iris hypoplasia, glaucoma, retinal detachment, etc. Microcoria (pupil diameter less than 2 mm) is also often observed due to atrophy of the pupillary dilator. The final diagnosis of Pierson syndrome can only be made based on the results of a molecular genetic study. Due to the severe lifethreatening renal manifestations of Pierson syndrome, for a long time the description of ophthalmological pathology was rather superficial. However, considering the high frequency and clinical severity of vision pathology in Pierson syndrome, it seems especially important to study in detail the features of the ocular phenotype in this disease. We have described a clinical observation of a child with Pierson syndrome, who was diagnosed with a missense mutation of the LAMB2 gene, a previously undescribed variant (rs143405268) in exon 18. The disease manifested itself as a combined pathology of the organ of vision, kidneys and the central nervous system. The ocular phenotype of the probands represented by microcoria, diffuse congenital cataract, and later by secondary glaucoma (after cataract surgery). Features of the renal phenotype of the proband were revealed – a horseshoe-shaped kidney, proteinuria not reaching the level of nephrotic syndrome, with preserved renal function. The peculiarity of this case of a child with Pierson syndrome is the absence of nephrotic syndrome in combination with the classic ocular phenotype with a previously undescribed variant of the LAMB2 gene mutation identified. Key words: pierson syndrome, LAMB 2, congenital cataract, microcoria, secondary glaucoma
Study of Coastal Morphological Changes by Tsunamis in Aceh (Indonesia) Using Satellite Images
Authors: Faiez Ziadul , Fan Daidu
Published: April 2024

This study identified the coastal morphological changes caused by tsunamis that occurred in Banda Aceh, Lampuuk-Lhoknga, and Meulaboh. The morphology of study areas was drastic changes during the 2004 tsunami and followed by the 2005, 2010, and 2012 tsunamis. Time series of Landsat satellite images and tidal data were collected during the period 1988-2020 and analyzed using DSAS (Digital Shoreline Analysis System) analysis method. The main aim of this study is to monitor recovery, trend development, and controlling factors of the coastal morphology before and after fifteen years of the 2004 tsunami. 
In Banda Aceh, the shoreline shift in the 2004-2005 period shows an inland retreat trend, with an average NSM (net shoreline movement) value of -644.69 m. The EPR (end point rate) value for the 2005-2020 period reached 21.31 m/year, but the recovery of the 2020 shoreline position has not returned to the original position before the 2004 tsunami. The significant shoreline retreat and land loss with an average NSM value of -40.59 m in the period 2004-2005 occurred on the Lampuuk and Lhoknga beaches. The 2020 shoreline of Lampuuk beach underwent a recovery with accretion. Nevertheless, Lhoknga beach is still experiencing apparent erosion. The recovery of the Meulaboh east coast was fast as evidenced by the development of the annual growth of spit features. The coastal morphological changes are influenced by complex interactions between natural and anthropogenic processes. The 2004 tsunami was the major factor to change the coastal morphology in the study areas.
Efektivitas Psikoedukasi Melalui Musik terhadap Peningkatan Self Esteem Remaja Beresiko
Authors: Sasmita Heppi , Tasman  , Deviaroza  , Rachmadanur N , Muchtar Murniati
Published: April 2024

Perkembangan masa remaja sangat penting sepanjang daur kehidupan, dimana pada masa ini remaja mengalami perubahan fisik dan psikologis yang mendasar dan belum memiliki pengalaman koping yang efektif  sehingga  menimbulkan kesulitan dalam  mengelola emosi dan  perilaku. Harga diri rendah (low self esteem) pada remaja menyebabkan remaja tidak dapat memaksimalkan potensi yang dimiliki. Penelitian ini  bertujuan untuk melihat peningkatan self esteem pada remaja yang berisiko dengan menerapkan  psikoedukasi melalui musik di SMPN 39 Padang. Penelitian kuantitatif ini didesain secara ”Quasi-experimental pre-post test kontrol group” dengan menerapkan terapi psikoedukasi melalui musik dengan menggunakani media sosial. Waktu penelitian 8 bulan dengan jumlah sampel adalah 64 yang terdiri dari 32 orang kelompok intervensi dan 32 orang kelompok kontrol. Data hasil penelitian dianalisis menggunakan uji T. Hasil analisis menunjukkan bahwa ada pengaruh psikoedukasi melalui musik terhadap perubahan self esteem remaja berisiko sebelum dan sesudah intervensi pada kelompok yang diberikan perlakuan. Hasil uji statistik dapat disimpulkan ada peningkatan yang bermakna antara self esteem sebelum dan sesudah pemberian terapi psikoedukasi melalui musik (Pvalue<0,05). Rata-rata self esteem remaja berisiko pada kelompok yang mendapatkan psikoedukasi melalui musik lebih rendah 1,85 dibandingkan kelompok yang tidak mendapatkan psikoedukasi melalui musik. Self esteem pada remaja berisiko berbeda secara bermakna antara kelompok yang mendapatkan psikoedukasi melalui musik dengan kelompok yang tidak mendapatkan psikoedukasi melalui musik. Guru BK disekolah perlu meningkatkan kualitas dan kesinambungan penerapan terapi psikoedukasi  melalui musik untuk meningkatkan self-esteem remaja.