bluuebunny/crossref_metadata_2025 huggingface dataset:
Esthesioneuroblastoma: Clinical Insights, Therapeutic Strategies, and Future Directions
Authors: Darfaoui Mouna , Elomrani Abdelhamid , Khouchani Mouna
Published: September 2023

The management of esthesioneuroblastoma presents unique challenges due to its rarity and complex nature. This malignant tumor originating from the nasal cavities requires a comprehensive and multidisciplinary approach. Our retrospective study focuses on shedding light on the distinctive aspects of managing this uncommon condition based on our experience at the Radiotherapy Oncology Department of Mohammed VI University Hospital in Marrakech, Morocco, over a 6-year period from 2016 to 2021. The majority of the patients in our cohort were male, constituting 60% of the cases, resulting in a male-to-female ratio of 1.5. The mean age at diagnosis was 25.8 years, highlighting that this condition can affect individuals in their prime years of life. Clinical and paraclinical data analysis revealed that 80% of the patients were classified as Kadish stage C, indicating advanced disease, while 20% were categorized as Kadish stage D, reflecting even further progression. As for patient management, it involved a multimodal treatment approach combining surgery with adjuvant radiotherapy in 3 patients, radiotherapy with chemotherapy in one patient, and a combination of all three therapeutic modalities in one patient. Survival outcomes were modest, with a median survival of 15 months. The aggressive nature of esthesioneuroblastoma requires a proactive and collaborative approach involving oncologists, surgeons, radiation therapists, and pathologists. The rarity of this tumor underscores the importance of knowledge-sharing and collaborative efforts among medical professionals to establish standardized guidelines for its management.
Local Communıty-Based Infrastructure Internet Utılızatıon and Dıgıtal Fınancıal Inclusıon
Authors: Anindito Irischa Pramesti , Faturohhman Taufik
Published: September 2023

Due to Covid-19 pandemic, there has been a significant increase in internet penetration in Indonesia, as in 2023 internet users in Indonesia amounted to 78.19% of the total population. In addition,  there has been a change in behavior in internet use, one of which is behavior in accessing financial services. The activity of accessing financial services and products via the internet above is evidence of developments in information and communication technology that have revolutionized the landscape of the financial industry, where now financial services can be accessed in a more efficient, cheaper way, and there is no need to come in person. However, although increasing access to technology is often associated with wider use of digital financial services, there is various empirical evidence that also points to obstacles to sustainable digital financial inclusion, such as poor network connectivity and low levels of digital literacy. Despite Indonesia's growing internet infrastructure and services,, the challenge of the digital divide is still a real problem. This is especially felt by people who live in rural and remote areas. This study aims to explain the utilization of local community-based internet infrastructure in the form of a digital literacy program conducted by Common Room for its digital financial inclusion beneficiaries. This study uses a mixed method, where quantitative data is analyzed through descriptive statistics and multiple linear aggression and qualitative analysis aims to confirm the quantitative findings. The results of this study are that digital literacy is able to mediate financial inclusion towards digital financial inclusion. However, digital literacy has not been able to mediate financial literacy towards digital financial inclusion. Therefore, a financial literacy education program is needed as a complement to the existing digital literacy program.
Analisis Tingkat Kepuasan Pelanggan Perusahaan Air Minum Daerah Lematang Enim Kabupaten Muara Enim
Authors: Ningsih Wahyu , Fitriani Heni , . H Febrian
Published: September 2023

Many basic problems cause the level of performance and service in PDAM Lematang Enim to be low such as low water discharge of the Enim River, polluted raw water sources, changing raw water conditions, distribution of water to people's homes that often experience congestion, turbid water and unfit for consumption. From the above problems, this study raises one problem in PDAM Lematang Enim, Muara Enim Regency, namely analyzing customer satisfaction with the services and products provided by PDAM. Previous research on PDAMs was quite widely conducted, but research on the level of customer satisfaction in PDAM Lematang Enim Muara Enim is still limited and has not been done much, so further research is needed to assess how customer ratings of PDAMs will be analyzed and can be a reference for PDAM Lematang Enim performance. The data analysis used in the study consisted of customer satisfaction index (CSI) analysis, and binary logistic regression analysis. CSI analysis was conducted to assess the level of satisfaction of PDAM Lematang Enim Muara Enim service users. The results of the CSI analysis will then be used to determine the factors that affect the level of service user satisfaction using binary logistic regression analysis. The results obtained from this study from 135 respondents who are customers of PDAM Lematang Enim are PDAM Lematang Enim in general has carried out operational activities quite well overall which has been included in the Satisfied category with a CSI value of 67.6075028.
Eksekusi Jaminan Gadai Emas pada Bank Syariah Indonesia
Authors: Setyawan Agus , Djatmiko Sugeng
Published: September 2023

Pawn transactions in Islamic jurisprudence are called al rahn. Rahn has many definitions, one of which in Arabic rahn has a permanent and continuous meaning. As for the definition of rahn in sharia terms, the scholars explained with the phrase, "Making property as collateral for debt to be repaid with the guarantee when unable to pay it off." The system of debt and credit transactions with pawns is allowed in Islam because there are arguments from the Qur'an, Sunnah, and ijtihad on which to base. So you don't need to hesitate anymore in sharia pawn transactions. The verse of the Qur'an that can be used as the legal basis for a pawn agreement is Q.S. Al Baqarah verses 282 and 283. Indonesia is one of the countries with the largest Muslim population, this makes Indonesia a potential market for sharia-based financial services. Where this sharia service meets the elements of Islamic law, including Rukun Rahn. faced by society. One of the banks that has service products in the form of pawns is the Indonesian Islamic Bank, hereinafter referred to as BSI. Where BSI runs a pawn service product in accordance with sharia and Islamic law that applies in Indonesia. This pawn is a bank lending money to customers/debtors with collateral, within a certain time and a certain amount of interest, and the debtor has an obligation to pay the loan in accordance with the amount of the price and maturity period that has been determined by the Bank and agreed upon by the debtor. Goods that can be guaranteed objects at BSI include Gold, Precious Metals, House Certificates or Land Certificates, etc.
High-speed reducing and sizing units in small-section and wire mills. Part 1. (Continuation)
Authors: Aryulin S.B. , Buvaeva A.К. , Nemzorov A.A.
Published: September 2023

The main trends in the development of technology for the production of wire rod in world practice are outlined. Information is provided on the developments by equipment manufacturers to change the layout and composition of the equipment of the tail section of modern high-speed mills in order to obtain the ability to control the properties of wire rod of a wide grade and size range. Information is presented on the use and location of reducing and sizing units in the tail section during the construction of new mills for the production of wire rod and the modernization of existing mills at domestic metallurgical plants.
Import substitution in electron beam welding
Authors: Il'in I.V. , Kononov B.S. , Kornilov S.Yu. , Osipov I.V. , Polyakov A.N.
Published: September 2023

The problem of cathodes replacing in imported installations of electron-beam welding is solved. The material for the manufacture of the cathode is selected, its parameters are determined, which are main in the control system of the installation. Cathode samples successfully tested and made it possible to obtain welds of the required quality.
ABORDAGEM DESIGN THINKING NO DESENVOLVIMENTO DE JOGOS DIGITAIS EDUCATIVOS COMO APOIO À ALFABETIZAÇÃO
Authors: Carvalho Camila Nascimento de , Santos Sylvana Karla da Silva de Lemos
Published: September 2023

Este trabalho apresenta as etapas de criação e desenvolvimento de um jogo digital com o objetivo de auxiliar na aprendizagem de crianças em fase de alfabetização a partir da abordagem Design Thinking. O jogo digital de caráter educativo foi concebido e aplicado com um grupo de 13 crianças em processo de alfabetização de uma escola pública no Distrito Federal, com idade entre 8 e 9 anos, considerando a possibilidade de motivar a curiosidade desse público, a familiaridade com a tecnologia e as possíveis defasagens de aprendizado ocasionadas durante o isolamento social e a pandemia da Covid-19. Os resultados iniciais indicam que houve interesse das crianças pela proposta e que o jogo digital com foco educativo e ferramenta lúdica, pode colaborar no processo de alfabetização de crianças.
ANÁLISE DE POTENCIALIDADES DAS TECNOLOGIAS DE INFORMAÇÃO E COMUNICAÇÃO PARA A PRÁTICA PEDAGÓGICA
Authors: Von Dentz Volmir , Tolotti Diana Salete
Published: September 2023

A utilização das Tecnologias da Informação e Comunicação (TICs) é constante em nosso cotidiano. No contexto educacional, elas oferecem possibilidades pedagógicas cada vez mais recorrentes. Considerando essa realidade, o artigo tem por objetivo apresentar uma pesquisa que buscou investigar e compreender processos pedagógicos mediados pelas TICs na educação profissional e tecnológica. A pesquisa foi desenvolvida como um estudo de caso envolvendo 5 professores e 73 estudantes de cursos técnicos de diferentes instituições de ensino do município em Santa Rosa, no Rio Grande do Sul. A metodologia aplicada incluiu revisão de literaturas, realização de entrevistas e aplicação de questionários. A análise dos dados demonstra que o uso das TICs na educação profissional exerce um papel importante na aprendizagem e na relação pedagógica.
A New Role for New Zealand in the Pacific
Authors: Quigley Derek
Published: September 2023

New Zealand is at huge risk strategically but the powers that be either don’t seem to realise it, or if they do, are doing very little about it. This paper suggests that it could be beneficial for New Zealand to assume a lead role – in partnership with Pacific nations – in the coordination of regional climate change initiatives, and also discusses options for the New Zealand Defence Force, including joining with Australia in the formation of an ANZAC Force.
Risks of public-private partnership in the development of social entrepreneurship
Authors:   Simon Kuznets Kharkiv National University of Economics, Kovtun M.
Published: September 2023

Building a socially oriented economy, ensuring high and stable rates of development of the national economy is impossible without the implementation of a partnership between the public sector and representatives of the private sector to solve socially significant issues of society: reducing social tension, increasing the general welfare of the population; solving cultural and environmental problems. The most popular form of interaction between the government and business is a public-private partnership. Implementing public-private partnerships in social entrepreneurship is associated with risks and the development of mechanisms for managing them in implementing partnership relations of public-legal entities. The publication aims to study the risks of public-private partnerships in developing social entrepreneurship and create a mechanism for their minimization. The article examines the nature of risks arising while implementing public-private partnerships in developing social entrepreneurship. The categorical apparatus of the concepts of "public-private partnership", "risk", "social entrepreneurship", and "risk management" is defined. It has been proven that public-private partnership allows the efforts of the state and private business to solve significant socio-economic problems and implement the principles of sustainable development of society — researched analysis of approaches to the classification of risks in PPPs. An assessment of the most common risks for all parties participating in the PPP was carried out. Typical benefits of public-private partnerships in the development of social entrepreneurship are determined. The directions for improving the risk management mechanism of public-private partnerships in developing social entrepreneurship have been developed. For the development of social entrepreneurship, implementing public-private partnership projects depends on minimizing all risks through analyzing social and economic feasibility, correctness and structure, and the coordinated work of all interested parties. Keywords: public-private partnership, risk, social entrepreneurship, competitiveness, risk management mechanism, state, private sector.
The effect of ice-resistant coatings to vessels efficiency
Authors: Веселов В.А. , Китаев М.В. , Суров О.Э. , Новосельцев И.А.
Published: September 2023

Ледостойкие лакокрасочные защитные покрытия предназначены для защиты наружной обшивки судов от ледовых воздействий. При проектировании такие покрытия позволяют уменьшить требуемую толщину наружной обшивки корпуса, что позволяет уменьшить построечную массу корпуса. От характеристик и качества защитных покрытий зависит сопротивление трения, расход топлива, выбросы в атмосферу, срок службы корпуса и ресурс судовой энергетической установки, т.е. функциональная и экономическая эффективность судна в целом. С целью оценки влияния ледостойких защитных покрытий на эксплуатационно-экономические показатели и функциональную эффективность судов ледового плавания в настоящей статье приводятся результаты лабораторных испытаний ледостойких защитных покрытий, применяемых в судостроении для защиты наружной обшивки ледоколов и судов ледового плавания и имеющих свидетельство о типовом одобрении Российского морского регистра судоходства. Выполнена оценка эффекта от применения ледостойких защитных лакокрасочных покрытий, имеющих разные значения коэффициента трения о лед, на ходкость и экологичность. Отмечено, что эффект от применения лучших образцов ледостойких защитных лакокрасочных покрытий может достигать от 10 до 20%.

Ice-resistant coatings are used to protect the ice going vessels from the weather and ice impaction. Such coatings reduce the required shall plating thickness and structural mass at vessel design stage. Quality and specification characteristics of ice-resistant coatings are effect on friction resistance, fuel consumption, emissions, hull strength and service life of the ship’s power plant, i.e., the functional and economic efficiency of the vessel. At present paper the results of laboratory tests of ice-resistant protective coatings, applied in shipbuilding industry to icebreakers and ice navigation vessels shall plating protection are presented. Ice-resistant coatings which were tasted in out laboratory have type approval certificates of the Russian Maritime Register of Shipping. The effect of the use of ice-resistant coatings with different values of ice friction to the propulsion and ecological efficiency of the vessel are presented. It is shown that the effect of using of the best types of ice-resistant protective coatings can reach from 10 to 20%.
Problems of ice regulation of non-«standard» structures
Authors: Кузнецов Э.А. , Кулеш В.А. , Суров О.Э. , Фам Ч.Х.
Published: September 2023

Существующему регламенту российских ледовых классов и усилений судов почти 25 лет. При его разработке приоритетное внимание уделялось арктическим транспортным судам и ледоколам. Специфика судов других типов, например промысловых, практически не учитывалась. При формальном проектировании новых судов с «эталонными» конструктивными решениями этот регламент сохранял работоспособность и редко выявлял недостатки. Наиболее остро такие недостатки проявлялись в случаях применения регламента к судам иностранной и советской постройки. Несмотря на систематические изменения и дополнения Правил проблемы сохраняются. В работе рассмотрены существующие проблемы регламентации ледовых усилений судов. Показано, что регламентируемые параметры нагрузок, мощности, форштевней, рамного и основного набора, а также наружной обшивки могут приводить к неоправданному завышению требований. Предложены перспективные решения ледовых усилений с «компактным» рамным набором и наружными усилениями. Намечены пути развития прямых расчетов ледовой прочности.

The regulations for Russian ice classes and ship reinforcements have been in place for almost 25 years. During its development, priority to Arctic transport vessels and icebreakers was given. The specifics of other types of vessels, for example, commercial ones, were practically not taken into account. During the formal design of new vessels with "standard" design construction, this regulation remained operational and rarely inconsistencies revealed. Such inconsistencies in cases of application of the regulations to foreign and Soviet built vessels were most acutely manifested. Despite systematic changes and additions to the Rules, problems persist. In the paper, the existing problems of regulation of ice reinforcements of ships are considered. The regulated parameters of loads, power, stem, ordinary frame and web frame, shell expansion to unjustified overstatement of requirements can cause is shown. Promising solutions for ice belt with a "compact" web and external strengthening are proposed. The ways of development of direct calculations of ice strength are shown.
Modernization of equipment for towing tests of models of ice navigation vessels at NNSTU
Authors: Калинина Н.В. , Жуков А.Е. , Золотов Н.В.
Published: September 2023

При прогнозировании ледовой ходкости судов целесообразно использовать модельный эксперимент, поскольку проведение натурных испытаний является сложным и дорогостоящим мероприятием и требует вывода судов из эксплуатации. Модельные испытания во льдах – это актуальный, проверенный и экономически эффективный инструмент, который используется для прогнозирования ледовой ходкости судов. За длительный срок эксплуатации опытового бассейна НГТУ измерительная аппаратура морально устарела и требовала модернизации. Для решения современных ледотехнических задач разработан новый измерительный комплекс опытового бассейна, который позволяет увеличить его экспериментальные возможности, повысить точность и достоверность исследований ледовой ходкости судов при сохранении накопленного многолетнего опыта. В данной работе описан существующий экспериментальный комплекс опытового бассейна с гравитационной буксировочной системой, приведены используемые модели льда для испытания моделей ледоколов и судов ледового плавания. Проводимые экспериментальные исследования на моделях позволяют прогнозировать ходкость ледоколов и судов ледового плавания на этапе проектирования.

When predicting the ice seaworthiness of ships, it is reasonable to conduct a model experiment since carrying out full-scale tests is a complex and expensive procedure that requires the temporary decommissioning of ships. Testing ship models in ice is an actual, proven, and cost-effective method used to predict ship performance in ice conditions. Over the long period of operation of the experimental pool at NNSTU, the measuring equipment became obsolete and required modernization. To solve modern ice engineering problems, a new testing complex of the experimental basin has been developed, which makes it possible to improve its experimental capabilities and increase the accuracy and reliability of studies of the ice seaworthiness of ships while preserving the accumulated long-term experience. This paper describes the existing testing complex of the experimental pool with a gravitational towing system. The ice models used for testing icebreakers and ice navigation vessel models are described. Experimental study of vessel models in the ice basin allows for predicting the ice seaworthiness of icebreakers and ice navigation ships at the design stage.
Peculiarity of the designing the propulsion complex for large-tonnage ice-class transport vessels
Authors: Добродеев А.А. , Родионов Н.Ю. , Архипов Г.А.
Published: September 2023

Создание современного флота крупнотоннажных судов, предназначенных для круглогодичной работы в Арктических условиях, должно быть основано на применении комплексной оценки ходовых и ледовых качеств, характеристик энергетической установки и режимов работы пропульсивного комплекса на стадии эскизного проектирования. Такой подход в условиях существующих ограничений на поставку импортного судового оборудования позволяет разработать наиболее эффективные технические решения для судна. Настоящая работа посвящена поиску и определению основных проектных решений при создании отечественного крупнотоннажного транспортного судна ледового класса Arc7, предназначенного для вывоза полезных ископаемых из шельфовых месторождений Арктики. Поиск указанных решений был выполнен при условии комплектации энергетической установки и движительно-рулевого (ДРК) комплекса оборудованием отечественного производства. Значения потребной мощности энергетической установки (ЭУ) были определены в ходе проведённых расчётов при помощи существующих численных методик. Далее, в работе рассматриваются различные варианты комплектации ЭУ и проводится численный анализ и сравнение на основе выбранных значений весовых функций сравниваемых характеристик ЭУ.

The comprehensive assessment of ship and ice performance, the power plant and operating modes of the propulsion complex characteristics at the stage of preliminary design must be the foundation of modern large-size vessels fleet intended for year-round operation in Arctic conditions. This approach allows to develop the most effective technical solutions for the vessels under existing restrictions on the supply of imported ship equipment. The presented work is devoted to the search and determination of the main design solutions for the creation of a domestic large-tonnage transport vessel of the Arc7 ice class intended for the export of minerals from the deposits of the Arctic region. The search for these solutions was carried out under the condition that the power plant and the propulsion complex (PC) were equipped with equipment of domestic production. The values of the required power of the power plant (PP) were determined during the calculations using existing numerical methods. Further, the paper considers various options for the configuration of the PP and performs a numerical analysis and comparison based on the selected values of the weight functions of the compared characteristics of the PC.
A new approach to determining the ice load on marine engineering structures for the critical kinetic energy scenario
Authors: Добродеев А.А. , Сазонов К.Е.
Published: September 2023

Сценарий предельной кинетической энергии часто применяется для определения уровня ледовой нагрузки на различные морские инженерные сооружения. Как правило, для определения нагрузки в соответствии с этим сценарием осуществляют расчет по формулам, содержащимся в различных нормативных документах. Экспериментальные исследования в ледовом бассейне для этой цели не используются. В работе приводятся некоторые результаты экспериментального изучения в ледовом бассейне ледовой нагрузки на морские гидротехнические сооружения, для описания которой используется сценарий предельной кинетической энергии. Подробно описана методика проведения модельных испытаний. Полученные экспериментальные данные сравниваются с результатами расчетов по нормативным документам. Выполнен анализ влияния на уровень ледовой нагрузки важнейших факторов, которые определяют кинетическую энергию льдины, а именно площади ледяного поля и скорости его дрейфа. Показано, что результаты экспериментов плохо коррелируют с расчетными данными. Проанализированы причины указанных расхождений. Выдвинуто предположение, что основной причиной расхождения является несоответствие теоретического и наблюдаемого в эксперименте механизмов локального разрушения льдины.

The critical kinetic energy scenario is often used to determine the level of ice load on various offshore engineering structures. As a rule, to determine the load in accordance with this scenario, calculations are carried out following formulas contained in various regulatory documents. Experimental tests in an ice basin are typically not used for this purpose. The paper shows some results of an experimental study of the ice load on marine hydro-technical structures in the ice basin. The critical kinetic energy scenario is used to interpret the results. The methodology of model tests is described in detail. The measured experimental data are compared with simulations made according to regulatory documents. The influence of the most critical factors determining an ice floe's kinetic energy on the ice load level is analyzed. These factors, in particular, include the area of the ice field and its speed. It is observed that the experimental results poorly correlate with the calculated data. The reasons for this inconsistency are analyzed. It is suggested that the main reason for the discrepancy is the difference between the theoretical and experimentally observed mechanisms of local ice floe destruction.
Experimental determination of the motion parameters of a submerged body and wave formation in ice conditions
Authors: Земляк В.Л. , Козин В.М. , Васильев А.С.
Published: September 2023

В работе экспериментально рассмотрено движение погруженного тела вблизи свободной поверхности жидкости и жидкости покрытой ледяным покровом. Эксперименты проводились в опытовом ледовом бассейне. Рассмотрено влияние особенностей формы поперечного сечения тела на волнообразование и характер движения в приповерхностной водной среде. Впервые экспериментально измерена величина относительного вертикального перемещения погруженного тела возникающего под воздействием подъемной силы. Установлены зависимости между исследуемыми параметрами и скоростью движения тела, а также влияние на них ледяного покрова. Определены параметры генерируемых изгибно-гравитационных волн. С помощью предложенного критерия ледоразрушения определена их ледоразрушающая способность. Установлена связь между величиной критерия ледоразрушения и характером разрушения льда. Делается вывод, что характер движения плохообтекаемых тел имеет сложную зависимость и большие значения относительного перемещения. По этой причине, движение подводных аппаратов с подобной формой корпуса в ледовых условиях на малом заглублении в диапазоне скоростей 0.3<Fr<0.39 может оказаться не безопасным и привести к контакту их кормовой оконечности с нижней поверхностью ледяного покрова.

The study experimentally considers the motion of an submerged body near the free surface of a liquid and a liquid covered with an ice cover. The experiments were carried out in the experimental ice tank. The influence of the features of the shape of the cross section of the body on wave formation and the nature of motion in the near-surface aquatic environment is considered. For the first time, the magnitude of the relative vertical displacement of a submerged body arising under the influence of a lifting force has been experimentally measured. Relationships between the studied parameters and the speed of the body, as well as the influence of the ice cover on them, are established. The parameters of the generated flexural-gravity waves are determined. With the help of the proposed ice breaking criterion, their ice breaking ability is determined. A relationship has been established between the value of the ice destruction criterion and the nature of ice destruction. It is concluded that the nature of the movement of bluff bodies has a complex dependence and large values of relative displacement. For this reason, the movement of underwater vehicles with a similar hull shape in ice conditions at a shallow depth in the speed range of 0.3<Fr<0.39 may not be safe and lead to contact of their aft end with the lower surface of the ice cover.
Variant of constructing a two-criterion diagram of the failure of cylindrical shells with cracks
Authors: Миронов А.А. , Кикеев В.А.
Published: September 2023

Рассмотрены условия разрушения цилиндрических оболочек с продольными поверхностными трещинами, нагруженных внутренним давлением. Решение задачи основано на использовании двухкритериального подхода к оценке разрушения конструкций с трещинами, в рамках которого строится двухкритериальная диаграмма разрушения. В качестве критерия хрупкого разрушения конструкции с трещиной используется критерий Дж. Ирвина. В качестве параметра, определяющего нагрузку предельного состояния при вязком разрушении, предложено использовать мембранную составляющую критического раскрытия трещины. Раскрытие трещины определяется в рамках модели пластической зоны по Дагдейлу. В качестве уравнения, аппроксимирующего двухкритериальную диаграмму разрушения, описывающую области хрупкого, квазихрупкого и вязкого разрушений, принята зависимость по стандарту BS 7910. Показано хорошее совпадение расчетных и экспериментальных данных по разрушению труб и сосудов давления с поверхностными трещинами.

The conditions of the failure of cylindrical shells with longitudinal surface cracks loaded with internal pressure are considered. The solution of the problem is based on the usage of a two-criteria approach to assessing the failure of structures with cracks. A two-criteria fracture diagram was constructed within the framework of the approach. J. Irwin's criterion is used as a criterion for brittle fracture of a structure with a crack. It is proposed to use the membrane component of the critical crack opening as a parameter that determines the limit state load in ductile fracture. Fracture opening is determined within the Dugdale’s model of plastic zone. The dependence according to the BS 7910 standard was adopted as an approximating equation the two-criterion fracture diagram, which describes the areas of brittle, quasi-brittle and viscous destruction. There is a good agreement between the calculated and experimental data on the fracture of pipes and pressure vessels with surface cracks.
Mechanical model of drifted ice interaction of wide offshore structure
Authors: Сахаров А.Н.
Published: September 2023

Рассматривается взаимодействие дрейфующего поля ровного льда с наклонной гранью широкой платформы или протяженного защитного мола. Модели плавающей упругой балки-полоски или пластинки на упругом основании оказываются эффективными для расчета глобальной ледовой вертикальной P и горизонтальной N нагрузок. Учет горизонтальной нагрузки в большинстве работ производится в критерии прочности, определяемой по достижению условия прочности на изгиб (или растяжение) в крайнем волокне в опасном сечении. В статье выполнен учет действия сжимающих напряжений и в критерии, и в уравнениях равновесия. Получено аналитическое решение задачи равновесия плавающей балки в условиях сжатия и изгиба, найдены координаты сечения балки, где действует максимальный изгибающий момент. На плоскости P-N построены кривые, задающие предельные нагрузки для балки. Это позволяет эффективно находить максимальные нагрузки на сооружение в зависимости от сценария взаимодействия (начальный контакт, модель Кроасдейла). Рассмотрена задача о плавающей пластинке с контактным краем, состоящим из дуг окружностей. Решение методом конечного элемента не выявило принципиальных отличий от исследованной модели плавающей балки-полоски. Выполненный расчет показывает, что размер блоков на порядок превышает толщину льда и мало соответствует наблюдаемому в натурных условиях. Для более реалистичного описания рассматривается силовое взаимодействие поля на сооружение посредством образуемого нагромождения. Установлено, что такая модель позволяет объяснить наблюдаемый размер блоков при разрушении дрейфующего ровного поля.

The interaction of a drifting ice sheet and wide sloping offshore structures is under consideration. The model of elastic beam and elastic plate equilibrium on hydraulic foundation turn out to be effective for calculation the values both vertical P and horizontal N forces. In many researches the compression force is taken into account in strength criterion of ice bending failure. The compression force is under consideration both in the failure criterion and in the equation of equilibrium. An analytical solution of equilibrium of a floating beam under compression and bending conditions is obtained, the coordinates of the beam section where the maximum bending moment acts are found. The limit curves on the a plane P-N allow to determinate loads value for various scenarios of ice-structure interaction efficiently (initial contact, the Croasdale’s scheme). The problem of equilibrium of floating ice sheet constrained on the contact surface by sequences of arcs is simulated by FEM model. The dimension of break off ice blocks in FEM analyses is in the same order as on the analytical beam solution. The performed calculation shows that blocks size is an order of magnitude greater than the ice thickness and doesn’t correspond to that observed in natural conditions. The pile-up formation is used in the modeling of ice-structure interaction. It allows to describe this process more realistically.
Analysis of hydrodynamics of interaction between structural elements of full-submerged tandem Archimedes screws of rotary-screw snow and swamp-going vehicles and water
Authors: Карасева С.А. , Папунин А.В. , Беляков В.В. , Макаров В.С. , Малахов Д.Ю. , Клюшкин А.А.
Published: September 2023

В статье рассматривается сравнительный структурный анализ работы в водной среде отдельных структурных элементов роторно-винтовых движителей снегоболотоходных амфибийных машин тандемной конструкции при условии полного погружения движителя в воду и сравнительная оценка вклада каждого из этих элементов в процесс создания тяги и формирования момента движителя в общем случае, а также относительная величина влияния данных элементов на общую эффективность движительной установки на основании графических зависимостей, полученных в результате моделирования. Кроме этого, дополнительно проанализированы специфические особенности гидродинамики роторно-винтовых движителей тандемной конструкции при их эксплуатации на ходовом и швартовном режимах для трех моделей шнеков с типовыми геометрическими и конструктивными параметрами, которые наиболее характерны для движителей существующих снегоболотоходных вездеходов, применяемых ранее и в настоящее время в районах с климатическими и дорожными условиями, аналогичными либо достаточно близкими к арктическим регионам, регионам Сибири и регионам Крайнего Севера.

The paper considers a comparative structural analysis of the operation in the aquatic environment of specific structural elements of rotary-screw propulsors of snow and swamp-going amphibious vehicles of tandem design under the condition of complete immersion of the propulsor in water and a comparative assessment of the contribution of each of these elements to the process of creating thrust and forming the torque of the propulsor in the general case, as well as the relative magnitude of the influence of these elements on the overall efficiency of the propulsion unit based on graphical dependencies obtained as a result of modeling. In addition, the specific features of the hydrodynamics of tandem rotary-screw propulsors during their operation in running and mooring modes for three models of Archimedes screws with typical geometric and structural parameters are additionally analyzed, which are the most typical of the propulsors of existing snow and swamp-going all-terrain vehicles used previously and currently in areas with climatic and road conditions similar or sufficiently close to the Arctic regions, regions of Siberia and regions of the Far North.
Image segmentation in Diagnosing the Ground Bud Necrosis Virus in Tomatoes using K-Means Clustering
Authors: Kadam K. U. , Dhumale R. B. , Dhumale N. R. , Nikam S. S. , Mane P. B.
Published: September 2023

Early-stage fruit disease detection will ensure the natural product quality for the organic agriculture business. The potential of using K-Means segmentation for diagnosing tomatoes fruit disease was intended to be explored by this proposed method. The main goal of paper is to increase classification accuracy by locating tomatoes with Ground Bud Necrosis Virus in Tomatoes disease using an image segmentation approach. The K-means clustering algorithm is intended to boost segmentation effectiveness. In the end product, the images are divided into three classes: Grade 0—00-15%; Grade 1—16-35%; Grade 2—36-65%; Grade 3—66-85%; and Class 4—86-100%. Moreover, the tested results of the proposed approach explore a variety of unhealthy images and disease Tomatoes and demonstrate that, when compared to existing methods, the proposed method has the highest accuracy.
Energy Absorption Analysis of Circular Tube of The Foam for High-Speed Train
Authors: Djamaluddin Fauzan , Susilo Daniel
Published: September 2023

This paper discusses the outcomes concerning the crushing properties of aluminum foam–filled tubes with a circular cross-section. The review assessed the impact of placing aluminum foam in single- and double-walled circular. A parametric evaluation was performed concerning the circular with the single- and double-walled variants. Validation results were contrasted against the documented experimental data, and a noteworthy alignment was observed. The foam strain rate is vital in regulating the crushing properties of the foam-loaded circular, and this factor must be considered. The outcomes also indicate the interaction between the circular wall and foam core has a varying deformation category and specific energy absorption. Foam loading had a similar effect concerning double-walled circular loads with foam. Moreover, evaluations were performed to determine the impact of core thickness and impact velocity on the crashworthiness performance. Further, it was discovered that a rise in core thickness for double-walled foam-loaded circular enhances crushing characteristics until the walls still interact. Subsequently, any rise in core thickness leads to the response aligning more with the single-walled circular energy absorber of a high-speed train.
ENTREPRENEURSHIP TRAINING: Learn to Make Patterned Fabrics with High Economic Value
Authors: Widodo Sugeng
Published: September 2023

Improving entrepreneurial skills among the younger generation is key in driving the local economy and promoting economic sustainability. Santri, as an important part of the potential community, often need special guidance to develop their entrepreneurial potential. In this context, this study aims to organize entrepreneurship training that focuses on making patterned fabrics with high economic value for students. The main objective of this activity is to increase students' understanding and entrepreneurial skills in the context of producing high-quality patterned fabrics. We also aim to motivate participants to explore and exploit local potential in creating sustainable economic value. This training is implemented through a series of workshops, hands-on practice in making patterned fabrics, group discussions, and individual assistance. The students receive comprehensive training on entrepreneurial aspects, such as business planning, production management, fabric design, and marketing strategies. They are also encouraged to explore cultural and artistic elements in fabric design, as well as the importance of building a strong brand. Collaboration between participants is promoted to enrich their experience and skills. The result of this activity is an increase in understanding and entrepreneurial skills of the students in making patterned cloth. They have succeeded in creating patterned fabrics with unique designs that reflect local culture, and this has received a positive response from the local community. Apart from that, some of the santri have also started their own small businesses to market the patterned cloth products they produced during the training.
Perlindungan Hukum Ketenagakerjaan Bagi Dokter Dalam Hubungan Kerja Dengan Rumah Sakit
Authors: Mahayani Brigita Mirna , Aji Rihantoro Bayu , Ismono Joko
Published: September 2023

According to the existing legal relationship, there are three groups of doctors working in hospitals, namely doctors with the status of permanent employees (PNS), doctors with contract status and visiting doctors (attending physician). There is a shortage of permanent doctors, in general private hospitals employ civil servant doctors who work in government hospitals as visiting doctors. Research objectives: To find out and analyze the regulation of the medical profession based on the positive law in force in Indonesia and to find out and analyze the labor law protection for doctors in working relations with hospitals. The type of research used is formative juridical, the research approach used is a statute approach and a conceptual approach. Labor law protection for doctors in working relationships with hospitals is regulated in the work agreement. The work agreement is an entry point for the norms of labor law protection for doctors who are bound by a working relationship with a hospital. The working relationship between doctors and hospitals was born from a work agreement. The work agreement stipulates the rights and obligations of each party signing the work agreement. Work agreements between doctors and hospitals are an autonomous source of law in work relations. The work agreement will be a source of law to be considered in the event of a dispute over work relations between a doctor and a hospital, in addition to the applicable labor laws and regulations.
Pembuatan Peraturan Daerah Berdasarkan Undang-Undang Nomor 23 Tahun 2014 Dalam Sistem Pembuatan Perundang-Undangan Menurut Undang-Undang Nomor 12 Tahun 2011 Perspektif Fiqh Siyasah Dusturiyah
Authors: Amaluddin Zainal , Saputra Erjan
Published: September 2023

Pemerintahan Daerah dalam pembuatan peraturan daerah berdasarkan undang-undang nomor 23 tahun 2014 dalam sistem pembuatan perundang-undangan menurut undang-undang nomor 12 tahun 2011 perspektif fiqh siyasah dusturiyah. Dalam menyusun peraturan daerah baru maka pemerintah daerah perlu mengkaji alur penyusunan peraturan daerah yang efektif dan efisien guna membangun daerah otonom sebagai pemerintahan yang baik, sebagai berikut mekanisme pembuatan perda menurut Undang-Undang Nomor 23 Tahun 2014 tentang Pemerintahan Daerah yaitu: Pertama identifikasi isu dan masalah; kedua identifikasi legal baseline  atau landasan hukum, dan bagaimana peraturan daerah (Perda) baru dapat memecahkan masalah; ketiga penyusunan Naskah Akademik; Keempat, penulisan Rancangan Perda, kelima penyelenggaraan Konsultasi Publik, keenam pembahasan di DPRD, ketujuh pengesahan serta Pengundangan Perda. Relevansi mekanisme pembuatan Peratuan Daerah menurut Undang-Undang Nomor 23 Tahun 2014 dengan fiqh siyasah dusturiyah bahwa dalam kajian fiqh siyasah dusturiyah kekuasaan legislatif atau legislasi disebut dengan istilah as-sultan at-tasri’iyah yakni kekuasaan pemerintah Islam dalam membuat dan menetapkan hukum.
PENGARUH AROMATERAPI TERHADAP TINGKAT KEPARAHAN PREMENSTRUAL SYNDROME
Authors: PASARIBU IRMA HAMDAYANI
Published: September 2023

Premenstrual Syndrome (PMS) adalah suatu kondisi yang biasanya terjadi pada wanita pada fase luteal siklus menstruasi, biasanya berlangsung 7-14 hari sebelum menstruasi. Sebagian besar wanita usia subur mengalami beberapa gejala menstruasi. Premenstrual syndrome ditandai dengan gejala fisik, emosional dan perilaku yang secara signifikan mempengaruhi kehidupan sehari-hari seorang wanita, termasuk pekerjaan dan aktivitas sehari-hari yang terjadi selama fase luteal dan menghilang dengan sendirinya dalam beberapa hari setelah menstruasi. Aromaterapi merupakan salah satu cara nonfarmakologi untuk meningkatkan kesehatan fisik dan mental. Aromaterapi dapat menurunkan tingkat kecemasan, stres, mual, muntah dan nyeri. Menurut berbagai penelitian, minyak aromaterapi baik dari berbagai jenis bunga dan kayu berkhasiat dalam pengobatan dan psikoterapeutik. Minyak esensial kenanga memiliki sifat terapeutik sebagai antidepresan dan diindikasikan untuk kecemasan, frustrasi, ketegangan saraf. Tujuan penelitian ini untuk mengetahui pengaruh aromaterapi kenanga terhadap tingkat keparahan PMS. Penelitian ini merupakan quasy eksperimental dengan menggunakan rancangan One Group Pretest-Posttest. Teknik pengambilan sampel adalah Purposive Sampling, dengan menggunakan kuesioner The Shortened Premenstrual Assessment Form (SPAF) untuk mengetahui adanya gejala-gejala PMS. Sampel penelitian sebanyak 38 orang mahasiswi Kebidanan Unsika Angkatan 2019-2020. Hasil uji Paired T-Test diperoleh p-value = 0,00 (< 0,05), bahwa ada perubahan tingkat keparahan PMS setelah diberikan aromaterapi kenanga, yang artinya ada pengaruh aromaterapi kenanga terhadap penurunan tingkat keparahan PMS.
HUBUNGAN PENGETAHUAN DAN SIKAP TERHADAP MINAT IBU DALAM PIJAT BAYI DI BPM BIDAN IDA LAILA KOTA BENGKULU
Authors: SITUMORANG RONALEN BR. , PUTRI YESI
Published: September 2023

Pijat bayi secara tradisional lebih dahulu dikenal oleh masyarakat Indonesia dibandingkan dengan pijat bayi berdasarkan penelitian medis (Martin, dalam Uswatun, 2017).  Di Indonesia cukup banyak bayi yang mengalami masalah gangguan tidur, yaitu sekitar 44,2% bayi mengalami gangguan tidur seperti sering terbangun di malam hari. Pijat bayi sudah lama dikenal dimasyarakat kita, namun masih banyak masyarakat kita yang belum mengerti dan belum mengetahui manfaat dari pada pijat bayi. Terapi pijat pada anak dan orang dewasa sudah berlangsung lama termasuk pijat pada bayi secara tradisional. Tujuan penelitian ini adakah untuk mengetahui Hubungan Pengetahuan dan Sikap Terhadap Minat Ibu Dalam Pijat Bayi di BPM Bidan Ida Laila Kota Bengkulu. Metode dalam penelitian ini adalah metode deskriptif dengan rancangan cross sectional. Populasi penelitian ini adalah seluruh ibu yang memiliki bayi 1-12 bulan berjumlah 30 orang. Sampel dalam penelitian menggunakan metode total sampling.

Hasil penelitian ini adalah Data hasil penelitian ini dapat digunakan dengan menggunakan SPSS statistics 25 dengan uji chi square dengan menunjukkan nilai signifikasi ρ=0,010 <α (0,05). Jadi dapat disimpulkan bahwa H1 diterima dan Ho ditolak. Dengan demikian dapat disimpulkan bahwa terdapat hubungan sikap dengan minat ibu dalam pijat bayi. Hasil uji chi square dengan menunjukkan nilai signifikasi ρ=0,007 <α (0,05). Jadi dapat disimpulkan bahwa H1 diterima dan Ho ditolak. Dengan demikian dapat disimpulkan bahwa terdapat hubungan pengetahuan dengan minat ibu dalam pijat bayi di BPM Bidan Ida Laina di kota Bengkulu. Kesimpulan dalam penelitian ini adalah terdapat hubungan pengetahuan dan sikap dengan minat ibu dalam pijat bayi di BPM Bidan Ida Laina di Kota Bengkulu tahun 2021. Hasil penelitin ini dapat Menambah sumber kepustakaan tentang materi Pengetahuan dan Sikap Ibu terhadap Minat Ibu dalam Pijat bayi serta sebagai referensi, masukan atau acuan informasi dalam mengembangkan penelitian dengan variabel-variabel yang lain dan metode penelitian yang berbeda.