bluuebunny/crossref_metadata_2025_split huggingface dataset:
Management of Transapical Mitral Paravalvular Leakage Device Closure Complication with Perfect Result
Authors: Khalilipur Ehsan , Firouzi Ata , Hosseini Seyyed Mohammad Javad , Vashveshady Mohammad Sadegh 
Published: November 2024

Abstract
Paravalvular leakage following surgical valve replacement is one of the major complications that have long-term morbidity. The gold standard of treatment was surgery in most literature, but transcatheter procedures showed promising results. We aim to show successful transapical transcatheter paravalvular leakage closure and complication management in the hands of expertise.
Anomalous Origin of Right Coronary Artery from Left Sinus of Valsalva, Still a Therapeutic Dilemma: A Case Presentation and Brief Review
Authors: Eftekhari Seyed Shahin , Givtaj Nader , Pouraliakbar Hamidreza , Sadeghipour Parham , Maadani Mohsen , Bashghareh Peyman 
Published: November 2024

Abstract
An anomalous aortic origin of coronary artery (AAOCA) is a rare congenital anomaly which reported in 0.1% to 1% of the population in the literature. The most common subtype is anomalous aortic origin of right coronary artery (AAORCA) deriving from the left side. In the present case report, the therapeutic approach of AAORCA and the ongoing clinical dilemma will be discussed. A 52-year-old man was admitted with prolonged exertional chest pain and increased troponin I without any changes in electrocardiogram. After percutaneous catheterization, it revealed an ectasia in all left system coronary arteries and we suspected AAORCA. Hence, a coronary computed tomography angiography confirmed that the right coronary artery originated from the left sinus of Valsalva with a malignant interarterial course and a significant lesion at the ostium of left anterior descending. Hence, a coronary artery bypass grafting (CABG) with reimplantation of the orifice of AAORCA to the right coronary cusp was performed as a therapeutic approach. In the 12-month follow-up, the symptoms were ameliorated and there were no complications. As recommended in the American College of Cardiology/American Heart Association guidelines, patients with AAORCA should be divided into asymptomatic and symptomatic (ischemic symptoms. The patients with AAOCA who are symptomatic such as chest pain due to ischemia, ventricular arrhythmia with syncope, or aborted sudden cardiac death should have offered surgical management including unroofing, CABG, or reimplantation approaches. However, in accompaniment of AAORCA and other coronary artery disease, both CABG and translocation of AAORCA with reimplantation into a suitable origin maybe an appropriate surgical strategy with an acceptable mid-term follow-up as represented in our case.
Effectiveness of Resting Transthoracic Echocardiography at Detecting Significant Coronary Artery Disease in Adults
Authors: Woods Michael D. , Hatfield Jess , Hammonds Kendall , Pham Alex , Exaire Jose , Mixon Timothy , Nguyen Vinh , Chiles Christopher , Widmer Robert J. 
Published: November 2024

Abstract

Background:
Detection of the regional wall motion abnormalities (RWMA) on the transthoracic echocardiography (TTE) is commonly used to correlate with coronary artery disease (CAD) and often prompts a further workup, including cardiac computed tomography or cardiac catheterization. However, the RWMA do not consistently predict obstructive CAD. This study investigates the accuracy and reliability of the presence of the RWMA on the TTE at detecting significant CAD (≥70% vessel stenosis).

Materials and Methods:
A retrospective chart review was conducted on the adults seen by the Baylor Scott and White Temple Echocardiography Laboratory who received a resting TTE followed by a cardiac catheterization within 30 days over 4 years. The exclusion criteria included catheterization without coronary angiography and a prior history of CAD, percutaneous coronary intervention, or coronary artery bypass graft. We analyzed the RWMA on the TTE and atherosclerotic CAD on the cardiac catheterization to assess correlation.

Results:
Four hundred and thirty-five patients were included in the study, and 198 patients received ultrasound-enhancing agent (UEA). The sensitivity and specificity of the RWMA on the TTE for detecting CAD in the adults were 49.5% and 78.8%, respectively. The positive and negative likelihood ratios were 2.33 and 0.641, respectively. The use of UEA made no significant difference in the sensitivity or specificity.

Discussion:
Our results show that the presence of the RWMA on the TTE has a high ability to rule in CAD, but the absence of the RWMA displays a much lower ability to rule out CAD than previously reported. Our results also show UEA did not enhance or detract from the sensitivity or specificity of TTE on CAD. The clinicians should be aware that the presence of the RWMA on the resting TTE has a high association with obstructive CAD, but the absence of the RWMA does not sufficiently exclude CAD.
Compact bilinear operators and paraproducts revisited
Authors: Bényi Árpád , Li Guopeng , Oh Tadahiro , Torres Rodolfo H. 
Published: November 2024

AbstractWe present a new proof of the compactness of bilinear paraproducts with CMO symbols. By drawing an analogy to compact linear operators, we first explore further properties of compact bilinear operators on Banach spaces and present examples. We then prove compactness of bilinear paraproducts with CMO symbols by combining one of the properties of compact bilinear operators thus obtained with vanishing Carleson measure estimates and interpolation of bilinear compactness.
Platelet counts to spleen diameter ratio: A promising noninvasive tool for predicting esophageal varices in cirrhosis patients
Authors: Mossie Getnet Yigzaw , Nur Abdulsemed Mohammed , Ayalew Zekarias Seifu , Azibte Gebeyehu Tessema , Berhane Kaleb Assefa 
Published: November 2024

BACKGROUND
Liver cirrhosis is the end stage of progressive liver fibrosis as a consequence of chronic liver inflammation, wherein the standard hepatic architecture is replaced by regenerative hepatic nodules, which eventually lead to liver failure. Cirrhosis without any symptoms is referred to as compensated cirrhosis. Complications such as ascites, variceal bleeding, and hepatic encephalopathy indicate the onset of decompensated cirrhosis. Gastroesophageal varices are the hallmark of clinically significant portal hypertension.
AIM
To determine the accuracy of the platelet count-to-spleen diameter (PC/SD) ratio to evaluate esophageal varices (EV) in patients with cirrhosis.
METHODS
This retrospective observational study was conducted at Tikur Anbessa Specialized Hospital and Adera Medical Center from January 1, 2019, to December 30, 2023. Data were collected via chart review and direct patient interviews using structured questionnaires. The data were exported to the SPSS software version 26 for analysis and clearance. A receiver operating characteristic curve was plotted for splenic diameter, platelet count, and PC/SD ratio to obtain sensitivity, specificity, positive predictive value, negative predictive value, positive likelihood ratio, and negative likelihood ratio.
RESULTS
Of the 140 participants, 67% were men. Hepatitis B (38%) was the most common cause of cirrhosis, followed by cryptogenic cirrhosis (28%) and hepatitis C (16%). Approximately 83.6% of the participants had endoscopic evidence of EV, whereas 51.1% had gastric varices. Decompensated cirrhosis and PC were associated with the presence of EV with adjusted odds ratios of 12.63 (95%CI: 3.16-67.58, P = 0.001) and 0.14 (95%CI: 0.037-0.52, P = 0.004), respectively. A PC/SD ratio < 1119 had a sensitivity of 86.32% and specificity of 70% with area under the curve of 0.835 (95%CI: 0.736-0.934, P < 0.001).
CONCLUSION
A PC/SD ratio < 1119 predicts EV in patients with cirrhosis. It is a valuable, noninvasive tool for EV risk assessment in resource-limited settings.
The Challenges of Crisis Response of the Franco-German Tandem after 2022
Authors: Sokolov A. P. 
Published: November 2024

The escalation of the Ukrainian crisis in February 2022 marked a new series of challenges for all key actors in international relations, including the states of the European Union. The largest EU countries France and Germany faced with a set of external and internal crisis phenomena chose different ways to build a strategy to overcome them. The German leadership attempted to use the Ukrainian crisis as a reason for launching previously postponed reforms in Germany and as a source of explanation for economic and social difficulties. Rising inflation, a reduction in industrial production from expensive energy resources, difficulties in migration policy and other problems were explained by Berlin as part of the price for the necessary support for Ukraine. At the same time, the reform of the Bundeswehr, which initially received broad public approval against the backdrop of the start of the Special military operation, faced criticism due to the half-heartedness of the proposed measures. As a result, the German government faced an unprecedentedly low approval rating for its performance, which only exacerbated Germany’s overall state of crisis. On the contrary, the French leadership, faced with a series of internal crises, the central plot of which was pension reform, chose not to tie them to the foreign policy dimension and, in particular, to the events in Ukraine. As a result, the French domestic political discussion did not become dependent on the logic of the development of the situation in Ukraine and was not radicalized at the expense of external participants. The difference in the choice of anti-crisis strategy has strengthened the contradictions within the Franco-German tandem as the economic and political core of the European Union.
Features of Germany’s Participation in Training of Afghan, Malian and Ukrainian Armies
Authors: Trunov P. O. 
Published: November 2024

The participation of the state in the training of personnel of the armed forces (AF) of another country is a way to ensure a long-term strategic presence in it. But there are high image and practical risks connected with refusal of the recipient country from foreign military instructors, advisers. The article tries to explore the features of the usage of such instrument by Germany on the example of the training of land forces of Afghanistan, Mali and Ukraine. The cases are the missions ISAF (2002-2014) and Resolute Support (2015-2021), EUTM Mali (2013-2022), EUMAM (since December 2022). The author uses 25 criteria divided into 5 groups for the comparative analysis, using the theory of armed forces building.The paper issues the historic features of the functioning of national armed forces at the territory of three countries, also strategic priorities of the Western democracies during the period of activity of the missions and attitude towards each one from Russia. The reasons of the choice of NATO or the EU for each mission is explained. Also, the author presents the quantitative parameters of the Bundeswehr usage in the cases, different numbers of the trained troops. The important parameters are the features of the organization of them, their composition, timings and schedules of the process, the tactics of combat usage. The research paper concludes about Germany`s desire for the compensation of the losses of former military training tracks by the launch of the new one.
Pendampingan Implementasi Penguatan Proyek Profil Pelajar Pancasila (P5) Untuk Meningkatkan Profesionalisme Guru Sekolah Dasar
Authors: Asriadi Asriadi , Nur Muhammad Awal , Sukaria Muhammad Ikhsan , Rosmala Rosmala , Hafid Abd. 
Published: November 2024

Kegiatan pengabdian ini bertujuan untuk memberikan pendampingan dan pelatihan kepada guru-guru SD Negeri Kampuno Kabupaten Bone dalam rangka meningkatkan profesionalisme mereka terkait Implementasi penguatan proyek profil pelajar pancasila (P5) dalam Kurikulum Merdeka di tingkat sekolah dasar. Sebanyak 8 guru dari SD Negeri 217 Kampuno menjadi peserta dalam kegiatan ini, yang berlangsung pada 30 September 2024. Pelatihan ini menggunakan beberapa tahapan antara lain :, 1) Persiapan, 2) Pelaksanaan (Penyampaian materi P5 dan Praktik penyusunan program P5), 3) Evaluasi . Secara keseluruhan, kegiatan pengabdian ini telah terlaksana sesuai rencana dan berjalan dengan baik. Narasumber menyampaikan materi sesuai dengan jadwal yang telah ditetapkan, dan materi tersebut dapat dipahami dengan baik oleh para guru peserta pelatihan. Peserta memperoleh pengetahuan tentang pembuatan modul P5 dan langsung mempraktikkan pembuatan modul P5 selama pelatihan. Produk yang dihasilkan dari kegiatan ini berupa modul P5 untuk setiap fase, yaitu fase A, fase B, dan fase C.
Enhancing Healthcare Claims and Membership Data Quality: SPSS Modeler Predictive Analysis
Authors: Sudeep Dhivya 
Published: November 2024

Purpose: This paper explores the use of SPSS Modeler predictive analysis to enhance healthcare claims and membership data quality. The analysis uses advanced analytical techniques and algorithms to identify discrepancies and improve data accuracy, improving decision-making and operational efficiencies within healthcare organizations. The paper also provides insights to optimize data integrity, streamline claims processing, and ultimately improve patient care outcomes by ensuring that accurate and reliable data can sustain all healthcare operations.
Methodology: This paper explores the use of advanced data mining and predictive analytics techniques to improve the identification of claims and membership data quality. The study aims to leverage supervised learning methods, including Neural Networks and the Auto Data Prep Modeling Option, and unsupervised learning methods, utilizing cutting-edge machine learning algorithms to train models capable of detecting and addressing data quality issues.
Findings: Data Quality of an application affects various factors of an organization including operations, decision making and Planning. It therefore becomes very important to make sure that the data being stored and used is of high quality. Data must be regularly monitored and cleaned to support more informed and effective healthcare decision-making. As per a research study published by MIT Sloan, poor data quality has made companies lose around 15% to 25% of their revenues [1]. Another study found that data scientist spends around 80% of their time cleaning and correcting data leaving them with only 20%of time to perform the actual analysis [2].
Unique Contributions to Theory, Practice, and Policy: By incorporating advanced predictive analytics techniques like supervised and unsupervised learning models within SPSS Modeler, the study enhances the ability to proactively address data quality issues, streamline operations, and ensure regulatory compliance. It can also help healthcare organizations by offering. Innovative perspectives on how data mining and predictive analysis can help reshare healthcare data governance, policy development and industry-wide standards for data quality.
МЕТОДИКА ВЫБОРА ОПТИМАЛЬНОГО КОМПЛЕКТА ТЕХНОЛОГИЧЕСКИХ БАЗ ПРИ РАЗРАБОТКЕ МАРШРУТНОГО ТЕХНОЛОГИЧЕСКОГО ПРОЦЕССА МЕХАНИЧЕСКОЙ ОБРАБОТКИ КОРПУСНЫХ ДЕТАЛЕЙ МАШИН
Authors: А.А. Ковалев , А.В. Побединский , Н.В. Рогов 
Published: November 2024

Рассматривается проблема выбора комплектов технологических баз при проектировании технологических процессов изготовления корпусных деталей на многофункциональных обрабатывающих центрах с ЧПУ. В результате проведенного анализа был выбран граф связи поверхностей детали для представления ее линейных размеров, допусков ориентации и местоположения, а также биения. Кроме того, для выбора комплекта баз установлено, что необходимо учитывать «нереальные» базы, погрешность базирования, площадь и устойчивость главной базы, унификацию поверхностей базирования, соответствие типовым схемам базирования, а также вспомогательное время на установку и снятие заготовки. Таким образом, с учетом рассмотренных критериев разработана методика выбора оптимального комплекта технологических баз при разработке маршрутного технологического процесса механической обработки корпусных деталей на обрабатывающих центрах с ЧПУ.
The article considers the problems of choosing technological losses in the design of technological processes for manufacturing body parts on multifunctional CNC machining centers. A graph of the connections of the surfaces of the part to describe the dimensions and requirements are presented. Basing error, «unrealistic» bases, area and stability of the main base, unification of the biasing surfaces, compliance with standard basing schemes, as well as time for installation and removal of the workpiece, are described. Method of choosing the optimal technological bases in the development of the technological process of mechanical processing of machine body parts, are given.
ИЗМЕРЕНИЕ ТЕМПЕРАТУРЫ И КОЛЕБАНИЙ ДАВЛЕНИЯ В СМАЗОЧНОМ СЛОЕ ПРИ ТРИБОЛОГИЧЕСКИХ ИСПЫТАНИЯХ
Authors: А.В. Михеев , М.А. Тананов 
Published: November 2024

В статье рассмотрены экспериментальные исследования температуры и давления смазочного слоя между трущимися поверхностями. Приведено описание экспериментальной установки, позволяющей измерять температуру масла, температуры поверхностей терния и давление смазочного слоя.
The article considers the peculiarities of measuring the temperature and pressure of the lubricating layer during experimental studies of friction units. Knowing the actual temperature of the lubricant allows the change in viscosity to be taken into account when selecting a lubricant grade. For realization of the described measurement methods the universal friction machine UMT-1 was modernized. The control system of the testing unit is developed, which allows to compensate the unevenness of rotation and error in the shape of specimens, as well as to take into account the nonlinearity of temperature sensors. A method of non-contact temperature measurement is described. Conducted experiments with varying speed and load value showed the difference between surface and lubricant temperatures under static and dynamic conditions. The test results show the importance of considering heat dissipation in parts subjected to friction. A new sample design for a tribometer with sensors embedded directly in the sample is proposed. This arrangement improves the measurement accuracy and speed of the measurement system. For hydrodynamic friction, the lubrication pressure was measured followed by frequency analysis based on the maxima of the amplitudes of the pressure fluctuations. The spectrograms contain maxima that are not harmonics of the main frequency, which is a sign of different mechanisms of pressure oscillations formation.
ОЦЕНКА ИЗНОСОСТОЙКОСТИ КОНСТРУКЦИИ МОДИФИЦИРОВАННОГО РАДИАЛЬНОГО ПОДШИПНИКА СКОЛЬЖЕНИЯ С УЧЕТОМ СЖИМАЕМОСТИ СМАЗОЧНОГО МАТЕРИАЛА
Authors: Д.У. Хасьянова , М.А. Мукутадзе 
Published: November 2024

В настоящей статье рассматривается разработка математической модели и экспериментальное исследование модифицированной конструкции радиального подшипника скольжения. Особенностью конструкций подшипника является нестандартный опорный профиль, на поверхность которого нанесено полимерное покрытие с канавкой. Особое внимание уделено учету сжимаемости смазочного материала при турбулентном режиме течения. Полученные результаты можно использовать для дальнейшего совершенствования конструкций подшипников, что позволит увеличить их надежность и долговечность в различных отраслях промышленности.
This article discusses the development of a mathematical model and an experimental study of a modified design of a radial sliding bearing. A special feature of the bearing design is a non-standard support profile, on the surface of which a polymer coating with a groove is applied. Special attention is paid to taking into account the compressibility of the lubricant in a turbulent flow regime. The results obtained can be used to further improve bearing designs, which will increase their reliability and durability in various industries.
СВОЙСТВО ГАЗОДИНАМИЧЕСКОГО ДАВЛЕНИЯ В ПРИРОДНОМ ИЛИ ПОПУТНОМ НЕФТЯНОМ ГАЗЕ
Authors: М.С. Рагимова , В.И. Алиев , Р.Х. Меликов , Н.М. Аббасов 
Published: November 2024

В статье представлен проект обустройства нефтегазовых месторождений, который предусматривает несколько систем, в том числе систему сбора, подготовки и транспортировки природного и попутного нефтяного газа по промысловым газопроводам. Изложены основные результаты научного подхода по влиянию газодинамических сил на характеристики промыслового газопровода. Также рассмотрено влияние физико-химических, термодинамических, технологических параметров природного или попутного нефтяного газа при его движении на свойства газа и характеристики промыслового газопровода.
The article presents a project for the development of oil and gas fields, which provides for several systems, including the system of collection, preparation and transportation of natural and associated oil gas through industrial gas pipelines. The main results of the scientific approach to the influence of gas-dynamic forces on the characteristics of an industrial gas pipeline are presented. The influence of physico-chemical, thermodynamic, technological parameters of natural or associated petroleum gas during its movement on the properties of the gas and the characteristics of the industrial gas pipeline is also considered.
ИНТЕГРИРОВАННАЯ СИСТЕМА УПРАВЛЕНИЯ ПРОИЗВОДСТВОМ ПРОМЫШЛЕННОГО ПРЕДПРИЯТИЯ
Authors: А.И. Сухомлинов 
Published: November 2024

Статья посвящена системному решению интеграции и автоматизации управления производством промышленного предприятия, расширению пространства его регулируемых параметров и ускорению реакции на текущие производственные события. Выполнен анализ и разработка архитектуры интегрированной информационной системы, обеспечивающей комплексное оперативное управление, в условиях промышленной революции «Индустрия 4.0». Исследованы объекты, процессы и отношения производства во взаимосвязи с другими функциональными областями предприятия, как с точки зрения экономического содержания и менеджмента, так и логической структуры информационной системы.
The work is aimed to a system solution for the integration and automation of production management of an industrial enterprise, expansion the dimension of its adjustable parameters and response acceleration to current production events. An analysis and development of the architecture for an integrated information system was carried out, providing complex operational management for the conditions of the industrial revolution «Industry 4.0». Production objects, processes and relations were studied in interconnection to other functional areas of the enterprise, both from the point of view the economic and management content, and the logical structure of the information system. The proposed architecture provides dynamic production and inventory planning and control, based on an accounted unit of production, represented by the elementary operation, with the possible further aggregation. The architecture meets the requirements for the integrated generation of optimized specifications for the workflow, flow of supplied materials and components. It introduces the concept and adds the aspect of intangible production resources management for the enterprise, including IVR/IAR models and CNC programs used during the production process along with traditional resources. The architecture is represented by two mutually consistent models - a data model and a system process model. It can be used in practice as a methodological basis for building configurations of operational production management systems and applied at enterprises of various subject profiles, especially in small and medium-sized businesses.