bluuebunny/crossref_metadata_2025_split huggingface dataset:
Simplified Deepwater FMCD Strategy
Authors: Fernandes A. A. , Malfitani M. V. B. , Sales I. M. , Vasconcelos K. S. , Pena G. C. M 
Published: September 2024

Managed pressure Drilling Surface Back Pressure (MPD SBP) and Mud Cap Drilling (MCD) techniques provides operational flexibility when compared to conventional drilling techniques. By using SBP techniques it is possible to drill wells with narrow operational windows, Fernandes et al (1) and (2) describes the positive impact of having the capability of the maintaining the wellbore pressure within operational limits. However, in some cases, even with a precise control of the annulus pressure it is not possible to drill with returns to the surface.
One typical scenario without operational window on Brazilian offshore wells is fractured zones and karsts reservoirs. In these cases, even with the use of MPD SBP technique, it is not possible to continue drilling without severe or total losses to the formation. An alternative drilling technique for these cases is Mud Cap Drilling (MCD). In MCD, total losses are not controlled, all the fluid pumped through the string and cuttings are injected to the loss zone formation. Surface pressure and mud properties do not define the well pressure. Pore pressure from the loss zone and the friction losses to inject the fluid and cuttings are the governing factors for well pressure. On deepwater application, Pressurized Mud Cap Drilling (PMCD) and Floating Mud Cap Drilling (FMCD) techniques are considered when drilling carbonate reservoirs offshore.
IADC and ABS (3) defines Floating Mud Cap Drilling (FMCD) as a drilling technique used to drill without returns while sacrificial fluid is continuously pumped down drill string and the annulus to avoid all possibility of formation fluid migrating to the surface. Open-hole formation is taking all injected (sacrificial) fluid and drilled cuttings without surface pressure assistance.
Influx Detected and Circulated Out Entirely with MPD on the First Deployment of MPD on Deepwater Rig. A Description of the Well Planning and Execution Process
Authors: Smith T. , Poletzky I. , van Noort R. , Tuckwell N. , Arnone M. , Shah P. , Duong L. 
Published: September 2024

Abstract
A well was to be drilled in the Gulf of Mexico that had limited offset data. Several interpretations from geoscience indicated a level of uncertainty that the operator identified as an ideal scenario for the implementation of the Managed Pressure Drilling (MPD) technology in deepwater of Mexico, with the main purpose of enhancing the ability to manage process safety while drilling with great variations of probable geopressures.
A low intensity 5 barrels kick was identified, controlled, and circulated out entirely through the mud gas separator with the MPD system, utilizing the specific procedure, lessons learned, and best practices identified by the operator and contractors previous experience.
The well was concluded successfully, navigating through the narrow operating window without non-productive time, with effective use of early kick and loses detection (EKLD) implemented by the integrated team of service provider and well-trained rig personnel.
This paper will describe all the phases from MPD deployment on the rig, rig crew training, drills for influxes handling, well planning, and execution.
Prevalent Metformin Use in Adults With Diabetes and the Incidence of Long COVID: An EHR-Based Cohort Study From the RECOVER Program
Authors: Johnson Steven G. , Abedian Sajjad , Stürmer Til , Huling Jared D. , Lewis V Colby , Buse John B. , Brosnahan Shari B. , Mudumbi Praveen C. , Erlandson Kristine M. , McComsey Grace A. , Arnold Jonathan , Wiggen Talia D. , Wong Rachel , Murphy Shawn , Rosen Clifford , Kaushal Rainu , Weiner Mark G. , Bramante Carolyn ,   RECOVER PCORnet EHR Cohort and the N3C Consortium
Published: September 2024

OBJECTIVE
Studies show metformin use before and during SARS-CoV-2 infection reduces severe COVID-19 and postacute sequelae of SARS-CoV-2 (PASC) in adults. Our objective was to describe the incidence of PASC and possible associations with prevalent metformin use in adults with type 2 diabetes mellitus (T2DM).

RESEARCH DESIGN AND METHODS
This is a retrospective cohort analysis using the National COVID Cohort Collaborative (N3C) and Patient-Centered Clinical Research Network (PCORnet) electronic health record (EHR) databases with an active comparator design that examined metformin-exposed individuals versus nonmetformin-exposed individuals who were taking other diabetes medications. T2DM was defined by HbA1c ≥6.5 or T2DM EHR diagnosis code. The outcome was death or PASC within 6 months, defined by EHR code or computable phenotype.

RESULTS
In the N3C, the hazard ratio (HR) for death or PASC with a U09.9 diagnosis code (PASC-U09.0) was 0.79 (95% CI 0.71–0.88; P &lt; 0.001), and for death or N3C computable phenotype PASC (PASC-N3C) was 0.85 (95% CI 0.78–0.92; P &lt; 0.001). In PCORnet, the HR for death or PASC-U09.9 was 0.87 (95% CI 0.66–1.14; P = 0.08), and for death or PCORnet computable phenotype PASC (PASC-PCORnet) was 1.04 (95% CI 0.97–1.11; P = 0.58). Incident PASC by diagnosis code was 1.6% metformin vs. 2.0% comparator in the N3C, and 2.1% metformin vs. 2.5% comparator in PCORnet. By computable phenotype, incidence was 4.8% metformin and 5.2% comparator in the N3C and 24.7% metformin vs. 26.1% comparator in PCORnet.

CONCLUSIONS
Prevalent metformin use is associated with a slightly lower incidence of death or PASC after SARS-CoV-2 infection. PASC incidence by computable phenotype is higher than by EHR code, especially in PCORnet. These data are consistent with other observational analyses showing prevalent metformin is associated with favorable outcomes after SARS-CoV-2 infection in adults with T2DM.
Contribution to Conditional Maintenance by Vibration Analysis of Rotating Machine Mechanical Failures and Proposed Solutions
Authors: Mohammed Ouali , Rabah Magraoui 
Published: September 2024

Objective: The aim of this study is to analyze the Cement Separator machine and identify potential condition indicators through vibration measurements and analysis. The goal is to diagnose and repair the machine before any material damage occurs.

Background: Maintenance Technology: Modern maintenance technologies are crucial for monitoring equipment performance and planning timely maintenance interventions. Vibration Monitoring: As a key component in maintenance programs, especially for mechanical systems, vibration monitoring provides early warnings of faults based on the actual state of the machine.

Cement Separator Machine: Issue: The cement separator exhibits significant vibrations despite its low operating speed. Data Sources: The construction and operational details of the machine are available from its operating manual and vibration measurements.

Methodology: Practical Vibration Measurements: Extensive measurements are performed in a research laboratory and on-site to monitor the machine's condition. Vibration measuring devices are used to monitor rotating machines at specified intervals according to their condition and international standards. Condition Indicators: Various condition indicators are monitored to detect possible deterioration and the onset of mechanical or electrical failures during the machine's operation. Experimental Studies: Practical experiments validate the theoretical and numerical findings and refine the vibration analysis approach.

Strategy: Adequate scheduling of interventions and repairs based on the machine's condition. Continuous monitoring through vibration analysis devices.

Expected Outcomes: Early detection of potential mechanical or electrical failures. Sustainable solutions to reduce vibrations and enhance the machine's performance. Improved maintenance scheduling to prevent material damage and extend the machine's lifespan. By integrating vibration monitoring and analysis with practical studies, this research aims to provide a comprehensive diagnosis and repair strategy for the cement separator machine.
Use of “ARRIAH-AviFluVac” vaccine in turkeys, geese and ducks
Authors: Moroz N. V. , Frolov S. V. , Irza V. N. , Scherbakova L. O. , Kulakov V. Yu. 
Published: September 2024

“ARRIAH-AviFluVac” vaccine against H5 avian influenza was demonstrated to be effective for ducks, geese and turkeys both in the laboratory and production environment. When administered to ducks at 0.5; 1.0 and 1.5 cm3, the vaccine provided 100%-effective protection of birds against the disease and death after challenge with the relevant high pathogenicity avian influenza virus of subtype H5N1, clade 2.3.4.4b. Singular 0.5–1.5 cm3 inoculation induced formation of antibodies, which were detected in the hemagglutination inhibition test at the titres that ranged from 4.3 to 6.1 log2. The vaccine facilitated 9–26-fold decrease in the virulent virus shedding by the ducks. Protection of turkeys vaccinated at the dose of 1.0 cm3 was maintained at the level of 87.5% after challenge with high pathogenicity avian influenza virus of subtype H5N1, clade 2.3.4.4b. The vaccine induced formation of antibodies at the titres of 4.9 and 5.5 log2 in turkeys after singular and double vaccination at the dose of 1.0 cm3, respectively. It was demonstrated, that after double administration of 1.0 cm3 of “ARRIAH-AviFluVac” vaccine, the post-vaccinal avian influenza antibody level exceeded 5.0 log2 in 75.9–90.0% of the geese population. The most appropriate way of the vaccine use in turkeys, ducks and geese involves at least its double administration at the double commercial dose. Higher species resistance of ducks to the challenge with avian influenza virus of subtype H5, clade 2.3.4.4bas compared to turkeys was also demonstrated.
تقدير انموذج الانحدار الخطي الضبابي باستعمال طريقة A.R.Arabpour And M.Tata
Authors: ازهار ناجي كاظم  , نبأ نعيم مهدي  
Published: September 2024

يعد الانحدار الخطي الضبابي (Fuzzy Linear Regression) الأداة المثلى لتحليـل البيانـات البـارزة بصفتها غير دقيقة وغير محددة بوضوح، إذ أن استعمال الطرائق الضبابية في تحليل تلك البيانات يمكن أن يؤدي إلى تحسين الدقة والموثوقية في تقدير العلاقات بين المتغيرات. تناول البحث تقدير انموذج الانحدار الخطي الضبابي بمتغير استجابة ضبابي (Fuzzy) مثلثي ومتغيرات توضيحية قطعية (Crisp) ومعلمات ضبابية (Fuzzy) مثلثية باستعمال طريقة A.R.Arabpour And M.Tata للتقدير، أما بيانات الدراسة فكانت عن مرض ارتفاع ضغط الدم الانقباضي والانبساطي (Systolic and diastolic hypertension) كمتغير استجابة ضبابي ومجموعة من العوامل المؤثرة عليه كمتغيرات توضيحية قطعية غير ضبابية متمثلة بـ (العمر(Age)، الوزن (Weight)، فحص سكر الدم (Glycemia)، الدهون الثلاثية (Triglyce)، الكوليسترول (Cholesterol)) ولمجموعة من المرضى والبالغ عددهم (125) مريض تم الحصول عليها من مستشفى بلد العام في محافظة صلاح الدين في محاولة لمعرفة تأثير كل من هذه العوامل قيد الدراسة على ارتفاع ضغط الدم الانقباضي والانبساطي، وتم الاستعانة ببرنامج MATLAB للحصول على النتائج وكانت النتائج تؤكد طردية العلاقة بين متغير الاستجابة الضبابـي والمتغيرات التوضيحية غير الضبابية، كما كانت نتائج اختبار t تؤكد على معنوية العلاقة بينهم، مما يفسر أن ارتفاع ضغط الدم الانقباضي والانبساطي قد يتأثر بشكل طردي بزيادة أي من المتغيرات التوضيحية قيد الدراسة
Laparoscopic renal denervation: A treatment option for management of refractory loin pain
Authors: Abbaraju Jayasimha , Abdalla Omer , Ghonaimy Ahmed , Usmani Azfer , Kuravinakop Sanjay , Mali Madhusudhan , Sriprasad Seshadri 
Published: September 2024

Background: Intractable loin pain is a debilitating condition with a significant impact on the patient's quality of life. Loin pain haematuria syndrome (LPHS) is a disease of exclusion and can be of two subtypes, Primary or Type 2 and secondary or Type 1. The type 1 LPHS could be a result of congenital anomalies, or acquired due infections, trauma, or surgery. Management of these patients can be pharmacological, nerve blocks, renal denervation, auto-transplantation and nephrectomy. Laparoscopic renal denervation (LRDN) has emerged as a minimally invasive surgical procedure, with acceptable results. Materials and Methods: All patients who underwent laparoscopic renal denervation in our unit from 2007 to 2022 by a single surgeon were included in this study. The indications for surgical intervention were loin pain refractory to medical therapy in the absence of any physical causes of pain. All patients were assessed by a multidisciplinary team, involving a urologist, a nephrologist, a pain consultant, and a pain psychologist. Baseline and postoperative pain scores of the patients were obtained. The patients underwent splanchnic or coeliac nerve blocks under local anaesthesia and were reviewed in the outpatient clinic post-procedure. If there were an improvement in the pain control and pain scores, they were offered LRDN. During the surgery, the renal vessels and proximal ureter were stripped from the neuronal and lymphatic tissues. Results: The 20 patients included in the study underwent 23 procedures. All patients were female. The mean age was 44 years, and the median follow up was 24 months. The median operating time was 90 minutes, excluding anaesthetic time. There were no significant adverse events other than one patient needed antibiotics for chest infection. There was significant improvement of pain scores with the mean pain scores falling to 2.47 postoperatively from 8.40. Fifty percent of patients had complete resolution of pain, while 30% had significant reduction in use of pain medication. Patients with primary LPHS did not have significant improvement in their pain scores, and one of these patients required auto-transplantation of her kidney.
Innovative perspectives on urban heritage. Towards the integrated regeneration of mass housing neighbourhoods
Authors: Navas-Carrillo Daniel , Rodríguez-Lora Juan-Andrés 
Published: September 2024

Introduction: Many 20th-century residential neighbourhoods exhibit a high degree of obsolescence both in terms of new technical demands and social and environmental requirements. However, current regeneration processes often lack cohesive vision, revealing sectorial biases and inconsistencies in quality interpretation. Methodology: This research proposes a comprehensive review on two levels: (1) integrated studies on urban rehabilitation and regeneration, and (2) a focus on Andalusian neighborhoods as a case study. Results: Drawing from a wide range of literature references, the research highlights the diverse approaches. Detailed case studies, particularly from Andalusia, illustrate the large applications of urban regeneration strategies and studies. Discussions: The research highlights that while residential neighbourhood regeneration has been extensively studied, there's a notable gap in recognising them as heritage assets. The study emphasises the necessity of integrating heritage considerations into urban regeneration processes. Conclusions: The research underscores the complex interplay between heritage conservation and urban regeneration, advocating for a holistic approach that respects historical contexts while meeting contemporary needs.
Mejora continua en la gestión de servicios de salud: estrategias para la excelencia administrativa
Authors: Monsalve Yer Orlando , Calvo Ospina María José 
Published: September 2024

Introducción: Este estudio se enfoca en la mejora continua de la administración en el sector salud, centrándose en la optimización de procesos administrativos. En la actualidad, existen desafíos significativos que requieren soluciones efectivas. Metodología: La metodología incluye la revisión de literatura especializada, análisis de datos de procesos administrativos en instituciones de salud, entrevistas con profesionales del sector, encuestas, desarrollo participativo con el personal sanitario y estudio de casos exitosos de optimización de procesos administrativos, utilizando herramientas tecnológicas y metodológicas adecuadas. Resultados: Se identifican desafíos comunes en la gestión administrativa, como factores organizacionales, culturales, tecnológicos y regulatorios. Además, se proponen estrategias efectivas para superar estos obstáculos y promover una mejora continua. Discusión: Este estudio contribuirá al desarrollo de políticas y prácticas administrativas basadas en evidencia, aplicables en diversos contextos. Fomentará una cultura de mejora continua en las instituciones sanitarias, promoviendo la participación del personal médico y administrativo en la identificación de áreas de mejora y la implementación de cambios efectivos. Conclusiones: Las recomendaciones resultantes de este estudio serán valiosas para los formuladores de políticas, administradores hospitalarios y personal sanitario, proporcionando información crucial para mejorar la experiencia del paciente y la calidad de los servicios de salud en diversos entornos.
Whole Even Sum Domination in Graphs
Authors: Abd Ahlama , Omran Ahmed A. 
Published: September 2024

In this paper, a new concept of domination which is called whole even sum domination is presented, many bounded, properties, remarks, examples, are introduced. Furthermore, some operations as join and corona graphs of sum graphs are discussed. Finally, determined this number of the graph obtained from a graph G by the removal of all edges between any pair of neighbours of a vertex.
Impacto transversal de la gamificación en el proceso de enseñanza aprendizaje en diversos niveles educativos y experiencia docente
Authors: Carvajal Peñafiel Victor Andres , Gallegos Velasquez Dayana Esther , Cruz Morales Carla Marisol , Trávez Osorio Sandra Elizabeth 
Published: September 2024

Introducción. En la era del Internet de las Cosas, la gamificación emerge como una estrategia crucial en la educación. Este estudio investiga cómo la gamificación influye en el proceso de enseñanza-aprendizaje en variados niveles educativos y contextos. Se examina si el subnivel educativo y la experiencia docente afectan la percepción y efectividad de la gamificación, utilizando un enfoque metodológico que combina la recolección de datos, el análisis estadístico y la programación para responder a preguntas clave sobre su impacto educativo. Objetivo. Evaluar si el subnivel de educación y los años de experiencia docente influyen en el impacto percibido de la gamificación en el proceso de enseñanza-aprendizaje. Metodología. Se llevó a cabo una encuesta en diversas instituciones educativas para recopilar datos sobre la percepción y el impacto de la gamificación. La metodología incluye análisis estadísticos no paramétricos, mediante la prueba de Kruskal-Wallis, para evaluar las diferencias en la percepción del impacto según la experiencia docente y el nivel educativo. Resultados. Los resultados de la prueba de Kruskal-Wallis indican que no existen diferencias significativas en el impacto de la gamificación entre los diferentes subniveles educativos, dado que el valor p de 0.32 supera el umbral de significancia. De manera similar, la variación en los años de experiencia de los docentes tampoco mostró un efecto significativo en la eficacia de la gamificación, con un valor p mayor a 0.05. Conclusión. La gamificación puede ser aplicada de manera uniforme, independientemente del nivel educativo de los estudiantes o la experiencia docente. Cabe mencionar la revisión de las consideraciones en cada caso. Área de estudio general: Educación. Área de estudio específica: Gamificación. Tipo de estudio: Artículos originales.
A Quality Improvement Project Aimed at Reducing Patient Falls in Ambulatory Clinics
Authors: Macolino Patricia , Fox Katie , Fitzpatrick Rebecca , Ahya Vivek N. , Lorincz Ilona , Prior Barbara 
Published: September 2024

Introduction Patient falls in ambulatory settings are uniquely challenging in that patients have more autonomy during outpatient visits and are not always easily identified as at risk for falling. Falls result in patient harm and dissatisfaction, loss of revenue, and a potential impact to the reputation of the health system. Objectives The primary objective of this study was to describe the work done to reduce falls risk for ambulatory patients. Methods This was a quality improvement project that used traditional improvement methodology to perform root cause analysis and process mapping, and to test and implement change strategies. Results The falls rate for ambulatory patients fell from 0.050 in fiscal year (FY) 2022 to 0.039 in FY23, a 22% reduction. The falls rate for ambulatory patients has continued to decrease; the current annual falls rate for FY24 is 0.030, a 37% reduction from FY21 rate 0.051, when a sentinel fall prompted root cause analysis and team focus. Conclusion While the initial intervention was only moderately successful, it led to a renewed focus on the risk of patient falls, which resulted in additional interventions and ultimately a reduction in high harm falls and the annual falls rate. Publisher’s Note This article was corrected on January 6, 2025, to reflect the authorship of Vivek N. Ahya, Ilona Lorincz, and Barbara Prior for their significant contributions to the manuscript, including their accompanying affiliations and author bios. The author bio for Rebecca Fitzpatrick and the Acknowledgments were also slightly revised. Plain Language Summary Fall prevention is a patient safety focus in many healthcare settings; however, as the first step usually involves screening to determine a patient’s fall risk, it is more difficult to identify patients at risk for a fall in an ambulatory clinic before they have been screened. After noting an increase in patient falls in its ambulatory practices in 2021—including one which resulted in patient harm—the University of Pennsylvania Health System (UPHS) set to work on reducing falls risk for ambulatory patients. The quality improvement project was piloted at an outpatient Neurology clinic that averages 6,500 patient visits each month, focused on redesigning the falls screening process and actions to take when a patient screens positive, with the goal of reducing falls by 10% from July 2021 to December 2023. Changing wellness survey screening questions to receive better information from patients and better identify their risk to avoid falls ultimately resulted in a 22% reduction in falls rate, which has continued to decrease beyond the original study period, as well as a reduction in the severity of injuries from falls.
AC poling of high Qm and low acoustic impedance Pb(Mg1/3Nb2/3)O3-Pb(Zr,Ti)O3 single crystals produced by a solid-state crystal growth
Authors: Maiwa Hiroshi , Yamagata Yushi , Xiang Yu , Lee Ho-Yong , Yamashita Yohachi (John) 
Published: September 2024

Abstract
The AC poling cycle dependence of Mn-doped Pb(Mg1/3Nb2/3)O3-0.3Pb(Zr.Ti)O3 (PMN-0.3PZT) single crystals (SC) produced via the solid-state crystal growth (SSCG) method was investigated. The piezoelectric strain and charge constants, d
33 ＝ 1130 pC/N, g
33 = 42.7 × 10−3 Vm/N, and mechanical quality factor Q
m = 800 were obtained under conditions of 1 Hz, bipolar sine wave, 7.5 kV cm−1 electric field, and 6000 cycles. In contrast to the conventional Bridgman process SC, the low-density and high Q
m SSCG SC necessitates a substantial number of AC cycles due to the presence of pores within the SC. In addition, the ACP SC showed a 13 °C increase in the phase change temperature T
rt compared to the DC-poled SC. This information on ACP SSCG SCs with improved thermal stability, low acoustic impedance, and enhanced receiving efficiency attributable to high g
33 offers new insight into high-frequency ultrasonic devices.