bluuebunny/crossref_metadata_2025_split huggingface dataset:
Micro-/nano-alumina trihydrate and -magnesium hydroxide fillers in RTV-SR composites under electrical and environmental stresses
Authors: Xuebang Tang , Bhutta Muhammad Shoaib , Ahmed Muneeb , Shah Hidayat Ullah , Alrashidi Khalid A. , Mohammad Saikh , Al Zoubi Wail 
Published: September 2024

Abstract
High-voltage outdoor insulating materials face formidable challenges emanating from stresses such as electrical discharge, humidity, and UV radiation, propelling them perilously toward potential failure. To combat this, researchers explored novel materials to enhance insulator performance under these stresses. In this study, samples infused with micro-/nano-alumina trihydrate (ATH) and -magnesium hydroxide (MH) were tested with a base polymer (RTV-SR – room-temperature vulcanizing silicone rubber) during a 100 h electrical discharge aging process. They were simultaneously exposed to AC discharges, UV irradiation, and varying humidity levels. The study found a decline in hydrophobicity in all samples post-discharge exposure. Notably, composites with micro- and nano-fillers exhibited prolonged hydrophobic recovery under stresses such as medium humidity and UV irradiation. Scanning electron microscopy analysis displayed deep cracks and block-like structures on surfaces, particularly in samples R1 (50% micro-MH) and R2 (50% micro-ATH). Aged sections of R3 (10% nano-ATH) and R4 (10% nano-MH) showed heightened surface cracks compared to R5 and R6. Energy-dispersive X-ray analysis detected surface oxidation, emphasizing the severity of electrical and other stresses. FTIR results indicated minimal absorption peak reduction in co-filled samples after aging. These findings highlight the impact of co-filled composite insulators for robust insulating systems to withstand the hostile outdoor environment.
A base-promoted synthesis of 3,4-dihydro-2(1H)-quinazolinones
Authors: Xiong Rui , Liu Yadi , Zhang Fang-Lin 
Published: September 2024

Abstract
A convenient and concise base-promoted synthesis of 3,4-dihydro-2(1H)-quinazolinones and multi-membered cyclic ureas has been developed. In the presence of tBuOK, a variety of 3,4-dihydro-2(1H)-quinazolinones as well as the N-arylated five-, six- and nine-membered cyclic ureas were readily synthesized under mild conditions. This method offers an alternative synthesis toolkit towards cyclic ureas.
Personal and social connection to psychedelics is associated with lower drug use stigma among psychiatrists in the United States
Authors: Levin Adam W. , Sarparast Aryan , Nagib Paul , Davis Alan K. 
Published: September 2024

AbstractBackground and AimsThis study sought to identify patterns of psychedelic use among American psychiatrists, to compare the demographic variables across categories of social proximity and personal use, and to determine how these categories influenced psychiatrists' attitudes towards drugs and people who use drugs.MethodsRespondents (N = 180; mean age = 48.4 [SD = 16.2]; male = 65.5%; trainees = 24.1%) were recruited via email lists/listservs and personal networks (snowball sampling).ResultsApproximately one-third (32.8%) of psychiatrists reported Personal Connection (i.e., history of personal use and social connection) to psychedelics. Psychiatrists with Personal Connection to psychedelics were more likely to be younger (p = 0.006, ηp2 = 0.057) and have fewer years of practice (p = 0.008, ηp2 = 0.058). Almost all (92%) of those with No Connection to psychedelics were out of training, compared with only 8% of those in training. Those with Personal and Social Connection to psychedelics were more likely to disagree: that using illegal drugs is morally wrong (p < 0.001, ηp2 = 0.28), that illegal drug users should go to prison (p < 0.001, ηp2 = 0.15), are weak minded (p < 0.001, ηp2 = 0.10), have no future (p < 0.001, ηp2 = 0.12), are not well educated (F(2.0, 170) = 7.38. p < 0.001, ηp2 = 0.08), are dishonest (p < 0.001, ηp2 = 0.10), and that illegal drug users ‘make me angry’ (p < 0.001, ηp2 = 0.10).ConclusionsPersonal and social connection to psychedelics is associated with decreased stigma towards drug use and people who use drugs. Future research should examine whether proximity to psychedelic use impacts other factors (e.g., empathy, therapeutic alliance) involved in psychiatry training and practice.
Are the Horizontal-to-Vertical Spectral Ratios of Earthquakes and Microtremors the Same?
Authors: Vantassel Joseph P. , Ilgac Makbule , Athanasopoulos Zekkos Adda , Yong Alan , Hassani Behzad , Martin Antony J. 
Published: September 2024

ABSTRACT
We consider the similarities and differences between earthquake and microtremor horizontal-to-vertical spectral ratios (eHVSR and mHVSR, respectively) using a dataset of 161 sites in southern California. Quantitative comparisons are made in terms of the eHVSR and mHVSR lognormal median curves, as well as the frequencies and amplitudes associated with the fundamental- and higher-mode resonances where present. The results show only 58% of the eHVSR–mHVSR pairs agree in terms of their median curve and only 25% of the eHVSR–mHVSR pairs agree in terms of shared resonances, which increases to 68% if flat HVSRs are considered equivalent. Furthermore, while the shared resonances match very well in terms of frequency (root mean square error, RMSE, &lt;0.11 Hz), the amplitudes of those resonances do not agree (RMSE &gt;1.6). These findings demonstrate that while eHVSR and mHVSR agree at some sites, they are not equivalent at all sites. To investigate if the agreement between eHVSR and mHVSR could be related to features of the microtremor data, earthquake recordings, and/or the site conditions, three machine learning (ML) models at varying levels of interpretability are presented. The ML models—which include multivariate logistic regression, gradient-boosted trees, and support vector machines—show only partial success at using site-specific data to predict whether eHVSR and mHVSR will likely agree in terms of their median curve (accuracy of 78%) and number of resonances (accuracy of 84%). Therefore, we conclude that while eHVSR and mHVSR can be quite similar in terms of resonant frequencies at some sites, they are not identical at all sites. Furthermore, preliminary evidence shows that the agreement of eHVSR and mHVSR can be predicted a priori given features of the microtremor measurements, earthquake recordings, and site conditions, although a larger dataset will be necessary for developing a robust predictive model.
AI in Decision Making: Transforming Business Strategies
Authors: Miah Md. Shelim , Akter Most. Samira , Samid Deyab Rashid , Siam Md. Ta-seen Ahmed 
Published: September 2024

Artificial intelligence has developed as a phenomenon greatly influencing numerous corporate sectors, particularly in decision-making processes. AI has matured into an intrusive instrument, impacting various corporate sectors, including their essential processes like decision-making. Ongoing improvements in AI technology have assisted organizations in optimizing their operations and strategic development. This research analyzes the function of AI in decision-making and its consequent impact on the enhancement of corporate strategy. A complete literature review was done for this inquiry. This article tries to evaluate the repercussions of AI across multiple sectors and its influence on business environments. It provides cases of AI application across different sectors and a critical critique of the present literature on AI within the business setting. It also discusses the challenges a corporation may face when integrating AI technology and evaluates probable developments that influence AI in business planning. Artificial intelligence positively benefits the business sector by boosting organizational decision-making capacities, leading to superior corporate decisions. The analysis points out a number of areas where AI has considerably enhanced efficiency as well as performance measures. The fundamental constraint of the study is that the deployment of AI is dynamic, with differing development rates across different industries. additional, there are additional limits such as data privacy and ethical difficulties and considerable expenses associated to using AI. The study stresses the relevance of AI in current management and proposes that firms should implement AI solutions to generate a competitive advantage. Managers and decision makers should consider the opportunities for employing AI and the diversity of possible difficulties that may occur. The provided study is valuable since it focuses on furthering our awareness of the true nature of threats and opportunities connected with AI, as well as reviewing the influence of this technology on numerous professions. This research adds to the achievements in understanding AI in organizational strategy and gives knowledge that is beneficial for academics and practicing managers.
Diversidade e inclusão no ambiente contábil: Um estudo bibliométrico
Authors: Santos Luciana de Sousa , Rosa Aline de Freitas Valadão , Soares Juliano Lima 
Published: September 2024

Contextualização: A promoção da diversidade e inclusão é essencial para a equidade nas organizações, e sua aplicação ainda é incipiente no Brasil, especialmente no ambiente contábil, onde a gestão da diversidade pode melhorar a imagem e a efetividade organizacional.
Objetivo: objetivo deste artigo foi identificar, com base em artigos científicos, o contexto em que diversidade e inclusão permeiam o campo da ciência contábil.
Método: Adotou-se o estudo bibliométrico como método de identificação dos artigos disponíveis na base de dados Spell, que abordavam a temática. Foi feita uma revisão sistemática da literatura para compreensão de como a temática tem sido discutida. A análise quantitativa, por meio da bibliometria, se deu com 110 artigos; após aplicação de filtros, foi realizada a RSL em 48 artigos que contemplam a temática na contabilidade, organizados em categorias: publicações e pesquisadores; periódicos e citações; e conteúdos.
Resultados: Os resultados apontaram que as organizações que valorizam a diversidade e inclusão, apresentam melhores resultados e lucratividade.
Conclusões: As contribuições da pesquisa na perspectiva teórica evidenciam o estado da arte, fornecendo uma visão mais ampla do debate sobre diversidade e inclusão no campo da ciência contábil; evidenciando lacunas a serem exploradas em futuras pesquisa. Como limitação aponta-se o levantamento em apenas uma base de dados.
Management of Cross-Flow Events in High pressure, Deep Disposal Wells Using MPD Techniques
Authors: Yao-Dablu Gerald D. , Hoekstra Scott 
Published: September 2024

Abstract
Drilling wells with Managed Pressure Drilling (MPD) technology allows Operators to drill and complete wells that would be otherwise un-drillable or uneconomical when done conventionally. The use of a mud density below the pore pressure can significantly reduce the likelihood of partial or complete loss of circulation especially when drilling through possible fracture or weak zones for Deep Disposal well projects.
While drilling a Deep Disposal well, pore pressure was determined and confirmed through fingerprinting with the use of surface-applied pressure on connections. Drilling deeper into a different formation, total loss of circulation was experienced. The loss of mud in this scenario, without returns to the surface, can cause the fluid level to drop over time leading to a potential wellbore influx, that could result in the influx reaching surface. However, due to cross-flow between the high pressure zone and the loss zone, gas from the high pressure zone was not seen on surface. Managing these losses involved the successful placement of Loss Circulation Material (LCM) to re-instate circulation and the use of Managed Pressure Cementing procedures to set cement plugs to heal the loss.
This paper delves into this unique instance of how MPD techniques were utilized to manage this cross-flow event in the Deep Disposal well in Alberta while highlighting the safety considerations employed when deciding between changing wellbore fluid to Brine or maintaining Invert as wellbore fluid.
Handling Gas-In-Riser – Part I: Fundamental Concepts and Calculations Underlying 2023 IADC Riser Gas Guidelines
Authors: Sonnemann P. , Teixeira M. L. M. Resende , Humphreys G. , Christman S. , de Sousa P. Cavalcanti 
Published: September 2024

Abstract
IADC published in 2023 new Deepwater Riser Gas Handling (RGH) Guidelines as well as a Riser Gas Tolerance (RGT) worksheet intended to make related calculations available to the industry. Both the Guidelines and the worksheet utilize terms and principles new to, or insufficiently documented within the industry.
Aiming to fill the gaps in documentation, this paper provides definition of terms and specifically addresses two fundamental concepts that are either little known or inconsistently applied to field operations, Riser Equilibrium and Riser Unloading. These concepts underly both the Guidelines and the RGT worksheet. Furthermore, the significance of fluid compressibility is quantitatively illustrated to address common, significant calculation errors.
Terms related to these concepts will be clearly defined and physically explained. The logic of related calculations (and derivation of formulae) will be clarified in order to provide the industry with a consistent basis for evaluation or further development of practical riser gas handling procedural issues.
The Importance of Human Factors Between a Drill Crew and an MPD Supervisor – A Human Factors Case Study by Boots on the Ground
Authors: Allen Z. , Digiacomo N. , Vines C. , Howell R. 
Published: September 2024

Abstract
Over the past several years, MPD has become a hot topic and a standard practice in our industry. More operators are seeing and accepting the benefits of this practice, and the rig contractors and MPD service providers are rising to meet this demand. Despite all the benefits MPD provides, there still is a part of our industry that is still skeptical of its utility and efficacy. These misgivings usually grow exponentially around the competence level of either the driller or choke operator/supervisor, or at times both.
This abstract/paper will explore the importance of the relationship between the driller and choke operator and its benefit to the overall operation. The areas of discussion will include the human factor topics needed in high-stress situations on rigs. Specifically, the atmosphere builds up during critical situations of gas at the surface (flaring gas), increase and/or decrease in returns from the well, and an MPD supervisor's overall role in well control responsibilities on jobs. It will also explore the importance of an MPD supervisor's role in setting up and nurturing the drill crews’ competence during operations with MPD. It will detail the importance of an MPD Supervisor's understanding and "feel" for a well, and how vital it is to a Driller's confidence, especially now when many "green" Drillers feel the full burden of responsibility for well control related events and practices on the MPD wells.
Analysis of Primary Safety Barrier on Workover Operations Using MCD on Deepwater Scenarios – Design and Execution
Authors: Roman R. S. , Fernandes A. A. , Cisneiros C. N. , Schnitzler E. , Sales I. M. , Ascaneo W. M. , Pereira R. H. , Tinoco D. M. , Bezerra E. M. 
Published: September 2024

Abstract
Intelligent completion installed in Brazilian pre-salt wells presents some challenges for workover. Pre salt ultra-deep-water wells are commonly equipped with two or three zones of integral intelligent completion, where severe fluid losses after acid stimulation, in depths is present on all wells.
The usual methods to remove the intelligent completion string requires controlling fluid losses to the reservoir or installing a mechanical barrier to isolate the reservoir. Both options have a high risk of non-productive time and safety risks.
A new approach is to remove the completion string in a single trip while dealing with losses. The reservoir would be communicated with the drilling riser while pulling the completion string. Clamps and flatpacks will be in front of the BOP during this trip. To control the risks, the project team developed tools and procedures to use MPD equipment and Mud Cap techniques during the critical parts of the operation.
One of the challenges faced was to prove that ALARP (As Low as Reasonably Practicable) was achieved in non-normative operations. This article will describe the concept and equipment used on the successful intervention. The objective is to present a new use of current MPD techniques for well maintenance operations. There will be special focus on the primary safety barrier during the operations and contingencies since there is no similar operation reported in the industry.
Rig Contractor's Best Practices and Lessons Learned for Contractor Owned MPD Deepwater Systems
Authors: Thain Jon , Brinkley Ryan , Palm Curtis , Duong Linden , Barker Ian , Hal Ebrahim , Arnone Maurizio , Shah Prashant , Sammat Essam 
Published: September 2024

Abstract
For many years, the MPD industry was expecting the definitive adoption of the technology by the offshore rig contractor. During that period, rental models were the norm, but the trend is showing definitive signs of rig companies investing in MPD capital as well as preparing their own personnel to run MPD directly.
With equipment that will be permanently installed on the rig, the rig contractors demand the level of technology that will better fit their business model for many years from MPD suppliers. Including capabilities to handle different MPD techniques with the same equipment in an efficient way in the event the project requires quick switches between MPD techniques such as, Constant Bottom Hole Pressure, Pressurized Mud Cap Drilling, and Riser Gas Handling.
The rig contractor is now the owner of the MPD equipment and can offer it directly to the operator company instead of using a third-party service provider as an intermediary. With that said to have an entire MPD independence, the rig crew must be trained properly and comply with the competency system that third parties have demonstrated to be successful in using it during the developing years.
This paper summarizes the practices, lessons learned, and knowledge transfer process that made the rig contractor successful in installing and using the acquired MPD equipment in different areas of the world while at the same time preparing their rig crew to operate the MPD software provided by the third-party MPD service provider.
Productivity Comparison of Different Completion & Stimulation Strategies with Underbalanced Coiled Tubing Drilling in Gas Carbonate Reservoirs
Authors: AlSaad Mohammed , Brohi Imad 
Published: September 2024

Abstract
Gas condensate reservoirs often require special completion and stimulation techniques to maximize productivity. Workovers performed due to well integrity issues often lead to formation damage which can severely impact the production potential from these wells. Some of the most commonly used well completion techniques are conventionally stimulated vertical wells, Multi-Stage Fracturing (MSF) with ball drop systems or plug and perf systems. More recently, these completion systems have been challenged by Underbalanced Coiled Tubing Drilling (UBCTD), which has proven to yield high. This paper aims to compare the post-completion production performance achieved with these completion techniques with special emphasis on UBCTD while factoring in reservoir characteristics that contribute to such results.
Furthermore, to thoroughly assess the productivity index associated with each well type, an extensive review was conducted on the advantages and limitations of UBCTD, MSF wells, and conventionally stimulated vertical wells. The review focused on the various factors that influence productivity, such as relative comparison of reservoir properties, wellbore stability, drilling fluid selection, and completion techniques.
This paper introduces a novel integrated approach to evaluate the PI of gas wells drilled using UBCTD technology, MSF wells, and conventionally stimulated vertical wells. Specialized plots were developed which helped in comparative assessment of the different completion types and also understand the differences. The proposed method combines the analysis of normalized field data, numerical simulation and a comprehensive review, offering a more reliable and accurate assessment of well productivity and the reasoning behind exhibited results. Furthermore, the paper highlights the importance of considering various factors, such as drilling fluid selection, and completion techniques, in optimizing the PI of gas wells. This study provides valuable insights for reservoir engineers, drilling engineers, and decision-makers in selecting the optimal well configuration and drilling technology to maximize hydrocarbon production.
MPD Helped Successfully Drill a Central European Well to TD After Multiple Failures in a Formation Fraught with Wellbore Instability and Formation Pressure Uncertainties
Authors: Kaldirim O. , Nauduri S. , Guefack G. , Morris J. , Fisher D. , Spahn M. , Howell R. , Parker M. , French P. , Leggett C. 
Published: September 2024

Abstract
MPD successfully delivered the first well in a remote Balkan region of Central Europe after multiple failed conventional drilling attempts into a reservoir fraught with formation pressure uncertainties and significant wellbore breakout. This paper discusses the MPD planning and execution strategies for managing the formation pressure uncertainties and borehole breakout, as well as the performance of the MPD system in handling larger cuttings and cavings.
MPD offers many opportunities, such as using a reduced mud weight and tracking the lower pressure boundary, coupled with the ability to respond rapidly to changing formation pressures. Challenges arise when wellbore stability pressure is uncertain, leading to breakouts at the borehole wall. This results in larger cuttings and cavings that can potentially plug the choke, causing pressure fluctuations and potentially leading to charged fractures, thereby further exacerbating the situation. These scenarios require detailed analysis, extensive planning, and rapid response.
The engineering team's planned response to the formation and fracture pressure uncertainties, combined with field execution and MPD system performance, enabled Shell Upstream Albania B.V. to successfully drill the well to the planned TD and secure and isolate multiple fracture zones with liner and MPC for stimulation and testing for the first time in the region. The well was drilled and completed with minimal losses while encountering major borehole breakout and with "0″ NPT due to choke plugging. MPD also enabled the client to obtain the first set of logs for the reservoir in this region with LWD. The liner was successfully run to TD, and bottom hole pressures were managed while cementing with MPD.