bluuebunny/crossref_metadata_2025_split huggingface dataset:
A retrospective analytical study on causes and contributary factors of maternal mortality
Authors: Jariwala Sherebanu Zainulabedin , Jain Mahima 
Published: October 2024

Background: Maternal mortality has long been considered as a very good indicator for healthcare quality provided. Pregnancy is considered to be a physiological phase in the lifetime of a woman carrying serious implications on morbidity and mortality. It has been agreed upon that many of the maternal deaths in developing countries can be prevented. This study aimed to study the prevalence of maternal mortality during April 2022- March 2023 in Civil hospital Ahmedabad, tertiary care centre.
Methods: It’s a retrospective observational study done at a tertiary care centre in Ahmedabad, Gujarat India. Maternal deaths from April 2022 to March 2023 were looked into. Maternal mortality ratio and causes for the maternal deaths were analyzed and compared. Demographic details were collected and data regarding parity, mode of delivery, gestational age at delivery, antenatal checkups, co morbid conditions, causes of death were noted and neonatal outcomes were noted.
Results: Overall live birth between April 2022-April 2023 were 7700 out of which number of LSCS were 2569 and remaining were vaginal deliveries, the number of maternal deaths were 39 (MMR-505.8/100000 live births). Most common direct c causes were severe preeclampsia/eclampsia and their complications 14 cases (35.89%), followed by sepsis 6 cases (15.38%) and PAS leading to PPH 5 cases (12.82%). The most common indirect cause was sickle cell anemia.
Conclusions: Preeclampsia and their complications and sepsis emerged as the greatest killers. Many of the reasons of maternal mortality were found to be preventable. Early identification and stratification of risks with prompt initiation of necessary management measures are necessary to prevent these deaths.
Prospective observational study of cervical cancer screening by Pap smear in tertiary care hospital in hilly areas of Himachal Pradesh
Authors: Justa Usha , Mittal Rita , Negi Kalpna , Rathore Sandeep , Sharma Surabhi , Choudhary Asha , Rawat Aditi 
Published: October 2024

Background: Cervical cancer is major cause of morbidity and mortality in females. The majority of cervical cancer deaths are in developing, low- and middle-income countries. India is having highest age standardization incidence of cancer cervix at 22. Cancer cervix is major health problem and rank one malignancy in Himachal Pradesh. This study was an attempt to detect various lesions of cervix with the help of Pap smear as a screening tool and timely intervention of any abnormality.
Methods: Total 2139 women in age group of 21-65 years were screened by Pap smears who presented in OPD for various gynaecological complaints and as a routine beyond 45 years. The study was conducted at Kamla Nehru State Hospital Shimla Himachal Pradesh during period of 01.02. 2023 to 31.07. 2023. Pap smear testing was done by conventional method and reported according to Bethesda system.
Results: In the present study majority of women were in age group of 41-50 years (49.56%). On analysis of Pap smears 86.11% samples were reported as negative for intraepithelial lesion or malignancy (NILM). Atypical squamous cells of undetermined significance were found in 1.12%, low grade intraepithelial lesion 0.23%, high grade intraepithelial lesion 0.19%, adenocarcinoma and squamous cell carcinoma 0.05% each. On further sub categorization of NILM cytology reports inflammatory finding was commonest (52.06%).
Conclusions: Early and routine Pap smear screening is important for early diagnosis of premalignant cervical lesions and Cancer cervix as prevention is better than cure.
Primary uterine rhabdomyosarcoma: a unique presentation
Authors: Padore Ishaan Sachin , Padore Archna Sachin , Shetye Rahi R. , Shetye Vedha R. , Padore Sachin S. 
Published: October 2024

Uterine rhabdomyosarcoma in adults is extremely rare. We present the case of a 61-year-old P1L1 postmenopausal female who came with abdominal distension and pedal edema since, 20 days. The typical presentation of post-menopausal bleeding was absent in this patient. The clinical presentation, massively raised CA 125 levels and CT findings pointed towards an ovarian malignancy. USG and MRI leaned towards carcinoma endometrium. The final diagnosis was clinched on immunohistochemical studies. The tumor had an aggressive course with a fatal outcome within days.
Media Leaders Mining Based on Android News Apps
Authors: Wang Sijia , Zhang Miao 
Published: October 2024

With the rapid development of the mobile Internet, the mobile news apps have become the most important way for the public to obtain news. As a new media carrier and communication platform,the mobile news apps can promote the rapid dissemination of information and the rapid spread of influence. Some media have a major influence on the direction of other media reports and the behavioral decisions of the public. These media can be regarded as media leaders. Media leaders are very important in the dissemination of news. By identifying media leaders, companies or governments can promote sales or guide public opinion separately. This article believes that media leaders mainly achieve their own influence by publishing news, so this article uses the news published by the mobile news apps as an entry point. This paper firstly solves the problem of data crawling in mobile news apps, and proposes a data crawling method based on reverse analysis, and obtains the data source. Then, reconstruct the reprinting path of the news, and carry out accurate traceability. Finally, cluster the news based on LDA, and propose an algorithm for mining media leaders from three aspects: influence, activity and preference. Experimental studies of data sets have shown that our algorithms can effectively identify media leaders.
Challenges and Prospects of the National Health Insurance Scheme and Medical Service Delivery in The Nigerian Navy.
Authors: I.B. Chukwuka , N.T. Mohammad , C.V. Chukwuka , C.O. Uko , DO. Babalola , P.E. Effa 
Published: October 2024

Background: The National Health Insurance Scheme (NHIS) was introduced into the Nigerian Navy (NN) in December 2006. It was meant to provide the alternative funding and technical imputes needed to revive the ailing medical service delivery in the NN. However, 5 years after the implementation of the Scheme, there are still problem of ‘out of stock syndrome’ of drugs while the quality of medical service delivery is still sub optimal. Hence, many NN personnel prefer to seek healthcare outside the Nigerian Navy Medical Service (NNMS). The aim of this study was to investigate the contributions of NHIS to medical service delivery in the NN, also to find out the challenges and prospects for optimizing the implementation of NHIS for enhanced medical service delivery in the NN.
Method: This study was a descriptive survey research. Primary data was collected using questionnaire and consultations. Secondary data was collected from books, official documents and publications, journals, internet, published and unpublished material. The data collected were analyzed and expressed as frequencies and percentages and thereafter presented in tables.
Results: The research findings showed a statistically significant relationship between NHIS and medical services delivery in the NN. It also revealed that the NHIS has contributed to the improvement of the NN medical service delivery. However, inadequate staffing, inadequate and obsolete medical equipment were found as challenges to optimal implementation of the Scheme for enhancing medical service delivery in the NN. Other challenges include poor attitude of medical personnel, insincerity in management of NHIS and exclusion of operational/occupational injuries.
Conclusion: In conclusion the study was able to establish a significant relationship between NHIS and medical services delivery in the NN. It also ascertained the various contributions of NHIS to medical service delivery in the NN. The study identified significant improvement in the quality of medical service delivery in the NN within the 5 years of implementation of the Scheme.
Analysis of the features of the operating conditions of modern gas turbine blades and review of methods for determining their high-temperature strength parameters
Authors: Nemanezhyn Yevhen 
Published: October 2024

The subject of the study is modern methods and materials for the manufacture of gas turbine blades, as well as approaches and methods for assessing their dynamic and static strength under high-temperature loading. The first purpose of the article is to describe the main methods of manufacturing turbine blades, provide examples of the materials used and the features of their crystal structure. The second purpose of the article is to review approaches to ensuring the dynamic and static strength parameters of single-crystal turbine blades, in particular, to avoid dangerous resonance modes, to study the parameters of anisotropic creep, high-temperature fatigue life, and long-term strength. The goal of the article is to highlight the main advantages and disadvantages of existing methods, approaches and techniques for assessing and ensuring high-temperature strength parameters of turbine blades under static and dynamic loading, in order to select the objectives of further research. Methods used to create the publication: methods of analysis and comparison, which were used to search and compare open literature sources of information in accordance with the purpose of the article, as well as the method of deduction, which was used to identify the main shortcomings of existing methods for assessing the high-temperature strength of gas turbine blades under static and dynamic loading to outline the goals of further research. The following results have been obtained. Literature sources related to the methods of manufacturing turbine blades, namely, directional crystallization and single-crystal casting, were analyzed. The advantages of single-crystal alloys for the manufacture of turbine blades, namely increased heat strength, heat resistance, fatigue strength, durability and crack resistance, are emphasized. The main modern methods for assessing the high-temperature strength of gas turbine blades with regard to the anisotropic characteristics of single-crystal alloys are analyzed and described. Conclusions. This publication presents information about gas turbine blades, in particular, provides meaningful information about the methods of their manufacture, as well as the materials used to produce them. The study analyses and identifies the main damaging effects on gas turbine blades during their operation. The material describes the achievements of scientists who have developed numerical and experimental methods for assessing the impact of the anisotropic characteristics of single-crystal nickel heat-resistant alloys on the fatigue strength, durability and creep of turbine blades.
Pengaruh Kualitas Pelayanan dan Harga Terhadap Kepuasan Konsumen Pada E-Commerce Shopee
Authors: Yerizal Yerizal 
Published: October 2024

ABSTRAK
Riset ini bertujuan untuk menganalisa pengaruh kualitas pelayanan dan harga terhadap kepuasan konsumen yang memanfaatkan platform e-commerce Shopee. Penelitian ini mengambil sampel dari responden yang merupakan generasi Z di Kabupaten Solok Selatan Provinsi Sumatera Barat. Penelitian ini menggunakan metode survei dengan menyebarkan kuesioner kepada 100 generasi Z di Solok Selatan yang pernah berbelanja di Shopee atau memiliki aplikasi Shopee dalam lima tahun terakhir. Data yang diperoleh dianalisis dengan menggunakan regresi linear berganda. Hasil uji parsial (uji t) menunjukkan bahwa harga dan kualitas pelayanan berpengaruh positif dan signifikan terhadap kepuasan konsumen karena memiliki nilai signifikansi (t hitung<0,05).Temuan dari pengujian F menunjukkan bahwa harga dan kualitas pelayanan memiliki pengaruh yang signifikan terhadap tingkat kepuasan konsumen, yang dinyatakan dengan nilai F yang kurang dari 0,05
ANALISIS KUALITAS UDARA PADA RUANGAN UPT PLTS DAN LABORATORIUM TEKNIK SISTEM ENERGI
Authors: Naimah Khoirun , Darmawan Arya Mahastra , Irfandi Muhammad , Pradini Putri , Sinaga Stefi Graf 
Published: October 2024

Kualitas udara dalam suatu ruangan merupakan salah satu factor penting yang dapat mempengaruhi produktivitas seseorang dalam melakukan suatu pekerjaan. Kualitas udara yang buruk dapat disebabkan oleh adanya polusi udara. Polusi udara atau pencemaran udara adalah masuknya atau dimasukkannya zat, energi, dan atau komponen lain ke dalam udara oleh kegiatan manusia. Sehingga, pengukuran kualitas udara penting dilakukan untuk mengetahui dan menganalisa kualitas udara yang ada di ruangan 1 (UPT PLTS) dan ruangan 2 (Laboratorium Teknik Sistem Energi) Gedung Laboratorium Teknik 2 ITERA. Metode yang digunakan adalah observasi dan pengukuran langsung terhadap beberapa parameter kualitas udara yang meliputi PM1.0, PM2.5, PM10, TVOC, HCHO, Temperature, Relative Humidity, dan Air Quality Index (AQI). Adapun pengukuran dilakukan dengan menggunakan Air Quality Monitor, yaitu alat yang dapat mengukur parameter- parameter yang menentukan kualitas udara dalam ruangan (indoor Air Quality). Berdasarkan hasil penelitian, pada ruangan 1 diperoleh AQI very good dan seluruh parameter telah memenuhi standar kecuali parameter Relative Humidity, sedangkan pada ruangan 2 diperoleh AQI fine dan Danger dengan ada 3 parameter yang belum memenuhi standar yaitu PM1.0, PM2.5, dan PM10.
A Novel Approach Utilizing Dual String with ESP System to Enable Gas Separator Configuration with Downhole Packers
Authors: Fardan Ali A , Alsayedali Adnan , Marri Bader Al , Aseef Serag Al , Nasiri Faisal Al 
Published: October 2024

Abstract
The utilization of electrical submersible pumps (ESP) in oil production has been established in the energy industry. Many factors play major roles in selecting the optimum ESP design to maximize oil production and prolong the system run life. One of these factors is the percentage of free gas present at the pump intake while ESP is operating. Oil wells with a high gas-oil ratio (GOR) percentage could experience challenges while operating the ESP and would frequently trip due to unstable production. Furthermore, introducing free gas into the pump could significantly deteriorate ESP pump performance and can lead to mechanical damage due to degradation or electrical damage due to significant overheating. A conventional mixed-flow ESP system can handle up to 20% free gas at the pump intake, while ESPs with axial-flow gas handlers with ESP packer applications could manage up to 50% free gas. Both options were proven inefficient while operating in a higher GOR environment. One of the available solutions is to utilize a gas separator and gas handler with the ESP system to separate the free gas and flow it to the surface through tubing casing annuals (TCA). This technology is commonly used with packerless completion to enable flow through TCA. A novel approach is required to use gas separators with downhole packers.
This study introduces a novel approach by employing a dual-string configuration with ESP systems and downhole packers. This configuration facilitates the utilization of gas separators and handlers, effectively mitigating the adverse effects of free gas on ESP performance. The main string accommodates the ESP and gas separator, while the secondary string remains accessory-free, ensuring efficient cable deployment and system integrity. Moreover, modifications to packers, hangers, and clamps facilitate safe installation and operation.
Simulations analysis indicates significant improvement to ESP performance after following the indicated novel approach. The ESP is able to operate with higher free gas volume fractions (GVFs) at the pump intake while sustaining higher flow rates. This can help in reviving several high GOR wells that could not flow with the conventional ESP system and gas handlers. furthermore, ESP run life is expected to improve significantly due to the reduction of ESP trips caused by flow instability.
The deployment of ESPs with gas separators and handlers is proven to be an excellent success in wells without downhole packers for significantly enhancing the production of high GOR oil producers requiring artificial lift. This study presents a novel approach to safely deploy gas separators and gas handlers with ESP systems while utilizing downhole packer in order to increase well deliverability and confirms the advancement of the emerging technology as opposed to the conventional ESPs that cannot withstand high gas fractions.
Geothermal ESP Remote Monitoring Principles and Case Studies
Authors: Atencia J. , Valero A. , McPhail A. G. , Pereda M. , Corredor F. , Sjerps H. , Nuñez X. 
Published: October 2024

Abstract
Geothermal Electric Submersible Pumps (GeoESP® pump) seamlessly integrate into geothermal projects due to high flow rate capabilities. High downhole temperatures can result in scale, plugging, downhole gauge anomalies, high power consumption, and limited run life challenges. To mitigate these challenges, a novel optimization guideline was created for abnormal event diagnosis based on lessons learned, action plans, and best practices from 12 applications and more than 1700 days of runtime.
The goal of this project is to provide a comprehensive technical guideline of geothermal well events lifted with GeoESP pumps, including real cases and action plans taken. The advanced monitoring features were enabled using a real-time Well Manager System and Remote Terminal Units (RTU) installed at the well site. These included high-resolution data capture and processing, real- time event detection, collaboration dashboards, visualization tools, and Machine Learning (ML) algorithms. The monitoring guideline contributed to the following:
Creating an operation manual with detailed instructions on geothermal ESP units’ best practices and field procedures. Reducing remote troubleshooting, event detection, and action plan times for increased pump uptime. Systematizing proven geothermal events to actionable operational plans. Develop human capital resources that specialize engineers in geothermal applications. Improving the advanced features of the SCADA system through new tools for geothermal assets. Enabling ML applications for real-time pump deterioration tracking and scale detection. Identifying power optimization opportunities using real-time indicators. Tracking the CO2 mitigation effect on the system and scale performance.
This paper will share the operational experience from remote monitoring services that can extend to all types of geothermal plants with ESPs as the main lifting method and can contribute to extending their run life.
Performance Evaluation and Comparative Analysis of Advanced Gas Separator with Three Downhole Gas Separator Systems in Sucker Rod Pumps: A Case Study in Carbonate Reservoirs, Oman
Authors: Al Abri Ahmed T. , Al Badi Said S. , Al Hinai Nasser , Al Abri Ahmed N. , AL Busaidi Khalfan 
Published: October 2024

Abstract
The primary objective of this SPE paper is to conduct comprehensive analysis on four distinct downhole gas separation systems in sucker rod pumps in high GOR light oil wells in carbonate reservoirs in the northern region of Oman. Gas interference is considered one of the main challenges in rod pump operation causing lost in production and equipment reliability. The paper aims to present the results of these trials and perform a detailed analysis of the performance exhibited by each gas separation system. By evaluating their effectiveness and efficiency, this study intends to provide valuable insights into gas separation techniques in similar reservoir conditions. Also to identify the optimum operating conditions for each systems. The ultimate goal is to contribute to the advancement of knowledge in this field and facilitate informed decision-making for gas separation operations.
In the trials conducted, four different gas separator systems were tested separately in sucker rod completions. These systems are the conventional gas separator, collar size gas separator, tandem gas separator, and advanced gas separator. The performance of each system was evaluated based on various factors, with a focus on gross production improvement and pump parameters such as pump fillage, dynacard, and other relevant parameters. The trials were conducted under similar well conditions and completion configurations.
Based on the results of the trials, it was observed that the conventional gas separator and tandem gas separator exhibited similar performance under the tested conditions. On the other hand, the collar size gas and advanced gas separator demonstrated the best performance, exhibiting increased oil production, improved pump fillage, and enhanced equipment quality. Oil production increased by more than 20% in some cases. The study concluded with a thorough comparison of the four systems, providing a comprehensive analysis.
The unique concept behind these trials is to showcase the performance of the different gas separation systems. Additionally, the study aims to identify the optimal well conditions for each system.
Reduction in BP Failure Rate by Introducing Molded Guide Rod Technology
Authors: Al Fulaiti Yaqoob , Al Faraji Omran , Al Naabi Ahmed , Al Shuelly Mohamed , Al Mandhri Abdulladhim , Al Abri Ahmed , Al Jabri Hamed , Al Busaidi Khalfan , Al Rahbi Fahad , Al Qasmi Hamed , Khemnar Atul 
Published: October 2024

Abstract
Daleel Petroleum Company is operating in block 5 in north of Oman producing light oil from relatively tight carbonate reservoir. Beam Pump (BP) and Electrical Submersible Pumps (ESP) are the two used primary artificial lifting systems with around 450 beam pumps contributing about 56% of the company's net oil production.
Rod and tubing failures are two of the main challenges faced in the beam pump performance especially that caused by metal to metal contact which contributed with around 15% of total failures. When the pump is running and during the pumping cycle up and down stroke, it is possible that sucker rods and tubing to have wear and erosion on rod couplings or/and tubing especially in deviated section. This erosion between rod and tubing will lead to parted rod or mechanical tubing leak situation. Therefore, run life of beam pump completion is affected, which increases operation cost and also increases loss production due to downtime. The well then need to be attended by a workover unit to replace a beam pump downhole completion.
In order to mitigate such failure issue, few proactive options were considered and implemented in Daleel. Rod centralizers was initially used, but did not show a good improvement. The molded guided rod was then introduced to Daleel in 2016 as another solut ion to minimize the failure rate. The sucker rod string is equipped with rod guides that help to stabilize the sucker rod string and to prevent the contact between rods and tubing. Promising results were seen after application of guided rods and it was decided to use guided rods in all upcoming new wells and in old wells during replacement. From 2022 Daleel has started installing downhole pump deeper in m ore deviated tangent sections more than 60 degrees and relatively high dogleg severity. The guided rod has helped in successful implementation of deeper beam pump installations and open the door for further production enhancement in block 5.
As a result of guided rod implementation, a significant reduction in rod/tubing failure rate from 15 % to &lt; 7% was observed. Application of guided sucker rods also has helped to improve beam pump run life performance.