bluuebunny/crossref_metadata_2025_split huggingface dataset:
Chest Radiograph appearance of SARS-Cov-2 Infection: A Prospective Observational Study of Ambulatory Patients from a Field Hospital in a Middle-Income Country
Authors: Farooq Faryal , Ahmad Wiqar , Ahmad Waris , Ullah Arsalan Rahat , Nusrat Baakh , Ijaz Muhammad , Noor Muhammad Usman , Aman Muhammad 
Published: September 2023

Background: The ongoing COVID-19 pandemic has had a profound impact on both individuals and society, resulting in widespread illness and death, as well as a global economic downturn. In order to examine chest X-rays (CXRs) of ambulatory patients diagnosed with COVID-19 in a field isolation center, our aim is to determine the proportion of patients with normal versus abnormal chest radiographs. Moreover, in cases where abnormal findings are present on the CXR, our goal is to document the distribution and patterns of these abnormalities.
Method: This prospective observational study was conducted on a cohort of 510 consecutive COVID-19 patients who tested positive for the virus and presented at the field isolation center between March 15th and May 15th, 2020. The study encompassed patients of all ages and both genders, with the exclusion criteria being patients requiring intensive care and those with unreadable CXRs due to technical limitations. The review of CXRs was performed by two certified radiologists, ensuring reliable and accurate assessments. Age, gender, and X-ray findings were noted.
Results: Among the total of 510 patients included in the study, 463 (90.8%) were male, while 47 (9.2%) were female. The age range of the study population spanned from 12 to 64 years, with the majority falling within the 23-33 year age group. During the review of CXRs, 433 (84.90%) were classified as normal, while 77 (15.10%) were deemed abnormal. The most frequently observed abnormal pattern was ground glass opacification, accounting for 54.5% of the cases, followed by the reticular pattern at 45.5%.
Conclusion: CXRs obtained from confirmed COVID-19 patients were normal in 85% of the patients. The most common abnormality seen in our study population was involvement of the lower lobes with patchy peripheral ground glass opacities or reticular shadowing, which was focal or multifocal in location.
The Recovery of Left Ventricular Function in Cases of Primary Angioplasty for Acute Myocardial Infarction
Authors: Ramzan Muhammad , Shehzad Azhar , Razzaq Abdul , Javed Kashif , Zaib Jahan , Saeed Ali Bin 
Published: September 2023

Background: This study is to investigate the recovery in left ventricular ejection fraction in the first 3 months after acute myocardial infarction treated with primary angioplasty. Left ventricular function (LVF) is the main predictor of long term prognosis in cases of survival after acute myocardial infarction. Study aims to investigate successful improvement in left ventricular ejection fraction after primary angioplasty.
Methodology: A cross sectional study was conducted at Chaudhary Pervaiz Ellahi Institute of Cardiology, Multan from 1stSeptember 2019 to 30thSeptember 2020. Left ventricular ejection fraction was evaluated in 100 patients treated with primary angioplasty. Primary angioplasty is a very 1st treatment to re-open the locked artery after acute myocardial infarction. Ejection fraction was measured with Echocardiography Simpson’s biplane method at 3rd day and 3 months after angioplasty. Collected data was analyzed by using SPSS version 23. Chi square test was applied to see association among variables.
Results: One hundred patients were included this study. The mean age and BMI of the patients was 59.45±6.01 years and 24.76±8.02 kg/m2, respectively. Male 70 (70%) and female 30 (30%) ratio was 7:3. LVEF at 3rd month was observed in ≤40% in 223 (23.0%) patients and >40% in 77 (77%) patients. Male patients were greater in number that’s why LVEF is also observed in greater in male gender (p<0.001). Increase in age also have no impact on procedure success (p>0.050).
Conclusion: Results of this study reveal that primary angioplasty is successful treatment plan in patients with acute myocardial infarction. A significant recovery of left ventricular function during 3 months after primary angioplasty in acute Myocardial infarction (MI) patients was observed.
THE USAGE OF STORYTELLING METHOD TO IMPROVE THE STUDENTS' SPEAKING SKILLS
Authors: Supriyani Supriyani , Meilani Tiansi , Kunah Kunah 
Published: September 2023

Educators need a lot of creativities to make the students interested in learning, especially English which often makes students think it’s difficult subject to learn. Storytelling is one the interesting methods to apply in teaching and learning process. This study aims to make students more active and courageous in expressing themselves in learning English and is also an attempt to determine of effect of using storytelling methods. This research was conducted in class X SMKN 1 Bongas Indramayu with population of 353 students and took sample of 36 students. The writers used the following types of tests: 1). Pre-test. 2). Treatment and 3). Post-test. This research is to answer questions; 1). How is the speaking ability of the students? 2). How is the fluency of students’ speaking skills? And 3) How is the use of the storytelling method in improving students’ speaking skills at SMKN 1 Bongas Indramayu? This study uses quantitative method. The population in this study was 353 and a sample of 36 students was taken from class 10. From this research, there are good results of using storytelling method in improving students’ speaking skills
ENTITLING TELEVISION PROGRAMS USING ENGLISH LOANWORDS IN SOME INDONESIAN TV STATIONS
Authors: Abdulloh Abdulloh , Sarsono Sarsono , Muslim Ikhwan , Basuki Slamet 
Published: September 2023

Loan words or borrowing words have already dominated in almost all of our everyday lives. All aspects of lives have already been inserted by foreign languages due to increasing the frequency of our contact with other nations through language. One of the examples is English loanwords in entitling the TV program in some Indonesian TV stations. This paper investigates the English words, phrases, expressions borrowed by Indonesian to entitle TV programs in 5 TV stations. Besides investigating the borrowing words, the writer also investigates the word class and borrowing process classification . The result of the research ranges 40% – 94.12 % of those 5 TV stations used English loanwords or phrases in entitling the program. The dominant process of loanwords still adoption, it ranges 33,310% - 100%, the second rank is adaptation , it ranges 9.5% -27.8 %, and the last one is one the three process of loanword, adoption, adaptation, and translation mixed with Indonesian. It ranges from 9.5 % to 38.9 %. Translation and creation are not clearly detected. In conclusion, almost all National TV stations are unavoidable using English loanwords in entitling the programs even TVRI as official TV station of this country. significantly influenced by them
AN ANALYSIS OF TRANSLATION SHIFT IN ENGLISH-INDONESIAN TRANSLATION OF ERAGON MOVIE
Authors: Adriati Rini , Nur Frina Diniarta , Rolianti Mira 
Published: September 2023

The objectives of this research are to identify the types of translation shifts present in the Eragon movie and to determine their frequency. The data will be collected from the dialogues in the movie. As a basis for this research, there is translation shift theory used, namely the translation shift theory of Catford (1965. In analyzing the data, the author uses a qualitative research methodology with a case study research design. This research identified translation shift occurrence in 599 dialogues and selected 12 samples for detailed analysis and discussion. The findings of the analysis indicated the presence of both Level Shift and Category Shift in the dialogues. The Level Shift is based on grammatical structure, they are Present Perfect Tense, Past Perfect Tense, Past Continuous Tense and Future Tense. The second shift found is Category Shift which consists of four types, they are Structure Shift, Unit Shift, Class Shift and Intra-System Shift. Overall, the results of this research demonstrate the occurrence of both Level Shift and Category Shift in the Eragon movie.
Operation of a marine internal combustion engine in a closed cycle using an electrolyzer
Authors: Тория Т.Г. , Епихин А.И. , Хекерт Е.В. , Модина М.А. , Козенкова Г.Л. 
Published: September 2023

Статья раскрывает потенциал и экологическую важность вторичного использования продуктов сгорания топлива на судах морского и речного флота. Рассмотрен процесс сгорания дизельного топлива и образования химических соединений на примере технических характеристик по типовым расчетам для двигателя «MAN B&W» 7S60MC-C. В результате анализа получены данные о требуемом количестве кислорода для поддержания необходимого содержания кислорода в топливно-воздушной смеси. Определены значения содержания кислорода и водяных паров в атмосферном воздухе, в составе отработанных газов и после скруббера. Произведен расчет цикла сгорания топлива в двигателе в отсутствии питания атмосферным воздухом и на основании полученных данных выведен коэффициент обеднения топливно-воздушной смеси кислородом. В соответствии с полученными данными произведён расчет необходимого количества электролизеров и криогенераторов для обеспечения замкнутого цикла работы двигателя. Проведён расчет потерь мощности двигателя при работе по замкнутому циклу и предложен цикл позиционного насыщения топливно-воздушной смеси кислородом, снижающий экологические загрязнение отработанными газами.
The article discusses the potential and environmental significance of recycling fuel combustion products on ships of the sea and river fleet. The process of combustion of diesel fuel and the formation of chemical compounds is considered on the example of technical characteristics according to typical calculations for the MAN B&W 7S60MC-C engine. As a result of the analysis, data are obtained on the amount of oxygen needed to maintain the required oxygen content in the fuel-air mixture. The oxygen and water vapor content values in the atmospheric air, in the exhaust gases, and after the scrubber are determined. The calculation of the fuel combustion process in the engine in the absence of atmospheric air supply is carried out. Based on the data obtained, the fuel-air mixture's depletion coefficient with oxygen is derived. The required number of electrolyzers and cryo-generators is determined following the data obtained to ensure a closed-cycle engine operation. Power losses during engine operation in a closed cycle are estimated. A cycle with positional enrichment of the fuel-air mixture with oxygen is proposed, which reduces environmental pollution by exhaust gases.
Stability of the guidance system of autonomous underwater vehicles in the presence of underwater currents
Authors: Скороход Б.А. , Жиляков П.В. 
Published: September 2023

В статье рассматривается задача наведения автономных подводных аппаратов (АПА) на заданный объект в горизонтальной плоскости при действии неконтролируемого постоянного течения. Управление формируется по изображениям, поступающих с видеокамеры или гидроакустического датчика, измеряя угол визирования, характеризующий положение объекта. Наш подход основывается на методах теории устойчивости, позволяющих обеспечить желаемое поведение АПА. Специфика рассматриваемой задачи анализа устойчивости определяется ее терминальным характером – правые части замкнутой управляемой системы имеют сингулярную точку в момент окончания процесса наведения. Это обстоятельство существенно затрудняет решение задачи, не позволяя использовать известные методы. Мы формализуем желаемое поведение АПА в виде определений устойчивости, разрабатываем подход к анализу их устойчивости, основанный на методе функций Ляпунова, и предлагаем критерии устойчивости. Полученные результаты иллюстрируются компьютерным моделированием.
The article deals with the problem of guidance autonomous underwater vehicles (AUV) to a given object in a horizontal plane under the action of an uncontrolled constant current. The control is formed from images coming from a video camera or a hydroacoustic sensor, measuring the angle of sight that characterizes the position of the object. Our approach is based on the methods of stability theory, which allow us to ensure the desired behavior of the AUV. The specificity of the stability analysis problem under consideration is determined by its terminal nature – the right parts of a closed controlled system have a singular point at the end of the guidance process. This circumstance significantly complicates the solution of the problem, not allowing the use of known methods. We formalize the desired behavior of APAS in the form of stability definitions, develop an approach to the analysis of their stability based on the Lyapunov function method, and propose stability criteria. The proposed results are illustrated by computer modeling.
Algorithmic support for the AUV operation under ice in the polar regions
Authors: Багницкий А.В. , Инзарцев А.В. , Панин А.В. 
Published: September 2023

В настоящее время множество актуальных задач связано с изучением покрытых льдом приполярных акваторий: мониторинг морских биоресурсов, обследование нижней кромки льда, инспекция объектов подводной инфраструктуры и т. д. Использование для этих целей автономных необитаемых подводных аппаратов (АНПА) позволяет экономить значительные материальные и людские ресурсы. Основные проблемы во время движения АНПА при выполнении таких работ доставляют неровная нижняя поверхность льда (включая ледяные кили) и необходимость поиска полыней для всплытия в случае непредвиденной ситуации. В статье рассматриваются алгоритмы работы информационно-управляющей системы АНПА, предназначенные для решения указанных задач. Алгоритмы обеспечивают движение АНПА подо льдом на различных горизонтах, со стабилизацией заданного отстояния от нижней кромки льда (если возможно), а также в покрытых льдом мелководных акваториях. Для избегания столкновений с возможными препятствиями предусмотрены варьируемые приоритеты стабилизации вертикального и горизонтального каналов управления. Для получения информации об окружающей ледовой обстановке используется эхолокационная система, состоящая из нескольких сонаров с фиксированными диаграммами направленности в передней полусфере АНПА. Поиск полыней для всплытия производится на основе данных от ориентированного вверх эхолокатора. Работоспособность алгоритмов подтверждена с применением методов математического моделирования.
Currently, many actual tasks are associated with the survey ice-covered circumpolar water areas: monitoring of marine biological resources, inspection of the lower edge of the ice, inspection of underwater infrastructure facilities, etc. The use of autonomous underwater vehicles (AUV) for these purposes allows one to save significant material and human resources. The main problems during the movement of the AUV when performing such work are the uneven lower surface of the ice (including ice keels) and the need for finding ice holes for surfacing in case of an unforeseen situation. The article discusses the algorithms of the AUV information and control system, designed to solve these problems. The algorithms ensure the movement of the AUV under the ice at various horizons, with the stabilization of a given distance from the lower edge of the ice (if possible), as well as in ice-covered shallow waters. To avoid collisions with possible obstacles, variable priorities for stabilization of vertical and horizontal control channels are provided. To obtain information about the surrounding ice conditions, an echolocation system consisting of several sonars with fixed directional patterns in the AUV's anterior hemisphere is used. The search for a ice hole for surfacing is based on data from an upward-oriented sonar. The efficiency of the algorithms has been confirmed using mathematical modeling methods. Key words: autonomous underwater vehicle (AUV), movement under ice, obstacle avoidance, surfacing in ice hole, information and control system.
The theoretical foundations of optimal monitoring of the parameters of the infrastructure of the Arctic region and the Northern Sea Route
Authors: Каминский В.Ю. , Скороходов Д.А. , Васьков В.В. 
Published: September 2023

Сложность объектов инфраструктуры Арктического региона и Северного морского пути, их разнообразный характер и многообразие измеряемых параметров, необходимых для контроля, диагностики и безопасного управления предполагает, что параметры, характеризующие техническое состояние и функционирование объектов, выраженные в виде математических зависимостей, адекватно отражают реальные физические связи между элементами инфраструктуры. Разработаны теоретические основы оптимизации измеряемых параметров, необходимых и достаточных для безопасной эксплуатации объектов инфраструктуры. Показано, что, анализируя физическое явление, можно представить его модель в любой системе координат. На практике для контроля технических процессов используют определённую координатную систему. Тем самым качество контроля и диагностирования физических параметров процесса определяется выбранной системой координат. Утверждается, что критериями выбора координатной системы являются возможность технической реализации измерения параметров и достаточная точность получаемых результатов. Показано, что такой подход позволяет обосновать критерий оценки эффективности используемой системы координат и обеспечивает возможность определения состава измеряемых параметров для безопасного контроля и управления объектами инфраструктуры.
The complexity of the infrastructure facilities of the Arctic region and the Northern Sea Route, their diverse nature and the variety of measured parameters necessary for monitoring, diagnostics and safe management suggests that the parameters characterizing the technical condition and functioning of the facilities, expressed in the form of mathematical dependencies, adequately reflect the real physical connections between the infrastructure elements. The theoretical foundations of optimization of the measured parameters necessary and sufficient for the safe operation of infrastructure facilities have been developed. It is shown that by analyzing a physical phenomenon, it is possible to represent its model in any coordinate system. In practice, a certain coordinate system is used to control technical processes. Thus, the quality of monitoring and diagnostics of the physical parameters of the process is determined by the selected coordinate system. It is stated that the criteria for choosing a coordinate system are the possibility of technical implementation of parameter measurement and sufficient accuracy of the results obtained. It is shown that this approach makes it possible to theoretically substantiate the criterion for evaluating the effectiveness of the coordinate system used and provides the possibility of determining the composition of the measured parameters for the safe control and management of infrastructure facilities.
Analysis of regulatory requirements for fire extinguishers placed on ships
Authors: Кожевин Д.Ф. , Таранцев А.А. , Естехин В.Г. , Коновалов И.Н. 
Published: September 2023

Пожары на судах представляют большую опасность как для самого судна, так и для экологии акватории и порта, ввиду чего оперативное тушение пожара на судне является актуальной задачей. Данная статья посвящается рассмотрению фактической ситуации нормирования требований по размещению и массе заряда размещаемых на судах огнетушителях. Проведен сравнительный анализ международных и отечественных нормативных документов, регламентирующих оснащение судов первичными средствами пожаротушения. Основное внимание акцентируется на влиянии массы огнетушащих веществ первичных средств пожаротушения на количество пожаров на морских судах. В статье произведен расчет среднего значения требуемой массы огнетушащих веществ и количества защищаемых помещений на Российских и иностранных судах. Анализ статистики пожаров за последние 10 лет на морском транспорте подтверждает корреляцию количества пожаров от величины средней массы огнетушащих веществ. Количество пожаров на отечественных морских судах значительно ниже (в 9,6 раз), чем на зарубежных. Это подтверждается более строгими и конкретными требования Российских нормативных документов, регламентирующих оснащение судовых помещений первичными средствами пожаротушения. На основании анализа пожаров на морских судах и документов, регламентирующих оснащение первичных средств пожаротушения определена эффективность методики оснащения судов огнетушителями.
Fires on ships pose a great danger both for the ship itself and for the ecology of the water area and sports, which is why the prompt extinguishing of a fire on a ship is an urgent task. This paper is devoted to the assessment of the actual situation of standardization of requirements on placement and mass of charge of the fire extinguishers placed on vessels. A comparative analysis of domestic and international regulatory documents regulating the equipping of vessels with primary fire extinguishing equipment was carried out. The main attention is focused on the influence of the mass of fire extinguishing agents of primary fire extinguishing agents on the number of fires on sea vessels. The average value of the required mass of fire extinguishing agents and the number of protected premises on Russian and foreign vessels has been calculated in the paper. The analysis of fire statistics on maritime transport over the past 10 years confirms the correlation between the number of fires and the average mass of fire extinguishing agents. The number of fires on domestic sea vessels is significantly lower (9.6 times) than on foreign ships, this is confirmed by more strict and specific requirements of Russian regulatory documents regulating the equipping of the shipboard spaces with primary fire extinguishing equipment. Based on the analysis of fires on sea vessels and documents regulating the equipping by primary fire extinguishing equipment, there was determined the effectiveness of the method of equipping the vessels by primary fire extinguishing equipment.