bluuebunny/crossref_metadata_2025 huggingface dataset:
Digital In- and Exclusion in Everyday Life: Practices and Literacies Across the Lifespan
Authors: Broersma Marcel , Swart Joëlle , Mensonides Denise , Smit Alex , Rebergen Maud
Published: September 2024

In this thematic issue of Media and Communication titled Practices of Digital In- and Exclusion in Everyday Life, we bring together insights from around the world to offer a diverse set of perspectives on digital practices and digital literacies across the lifespan. Moreover, emphasizing the development of digital literacies as a situated social practice, this thematic issue provides insights into the social contexts through which people develop digital literacy practices, how they construct and integrate social norms around technologies, and the links between digital literacies and (digital) citizenship. As concerns about digital in- and exclusion grow, this thematic issue hosts numerous relevant studies by academics that collectively help us gain insight into the impact of digital in- and exclusion in everyday life across the lifespan, gaining insight into the role of different contextual factors, including time, place, and social, economic, and political contexts in the ways in which citizens use digital media and develop digital literacies.
A aplicação do princípio da insignificância pelos tribunais superiores e seus reflexos na pesquisa sobre os processos de furto de itens alimentícios e de higiene no rio de janeiro
Authors: Haber Carolina Dzimidas
Published: September 2024

O artigo analisa os critérios utilizados pelos tribunais superiores, especialmente Superior Tribunal de Justiça e o Supremo Tribunal Federal, na aplicação do princípio da insignificância, com o intuito de produzir uma reflexão sobre sua viabilidade em uma realidade social complexa. Os dados produzidos durante a realização de pesquisa no âmbito da atuação da autora na Defensoria Pública do Rio de Janeiro sobre os casos de furto de itens alimentícios e de higiene durante a pandemia do COVID-19 foram analisados como forma de contribuir para essa reflexão, na medida em que trouxeram à tona uma série de questões que ainda funcionam como uma barreira para o reconhecimento do princípio da insignificância, tais como o valor, a quantidade e o tipo de bem furtado e os antecedentes e histórico criminal do agente.
Princípio da insignificância e crimes ambientais na jurisprudência do Supremo Tribunal Federal
Authors: Lobato José Danilo Tavares
Published: September 2024

Esse artigo investiga a jurisprudência do Supremo Tribunal Federal no tocante à incidência do princípio da insignificância nos crimes ambientais. Inicialmente, esse estudo estabelece algumas correções históricas do princípio da insignificância e traça premissas dogmáticas básicas relacionadas aos crimes de acumulação para, então, adentrar na jurisprudência do STF e, assim, demonstrar ao leitor o descolamento que existe entre os debates jurisprudenciais e doutrinários.
Innovative Magnetic Nanomaterials for Improved Energy Storage
Authors:   Al-Noor University, Hamdoun Subhi Hammadi , Hussain Salah Yehia ,   Al Mansour University College, Nuzal Saadi Mohamed Dhahir ,   Al Hikma University College, Jawad Aqeel Mahmood ,   Al-Rafidain University College, Nadher Ibraheem ,   Al-Turath University
Published: September 2024

Background: Finding effective energy storage technologies is crucial for transitioning to sustainable energy systems. Magnetic nanoparticles have emerged as options due to their distinctive magnetic characteristics, which can considerably improve the performance of energy storage systems. Objective: This research aims to investigate innovative magnetic nanoparticles and assess to increase the efficiency and capacity of energy storage systems. The emphasis is on developing materials with optimal magnetic characteristics and incorporating them into current energy storage methods. Methods: Co-precipitation and thermal breakdown were used to create a range of new magnetic nanomaterials. Vibrational sample magnetometry, X-ray diffraction, and cyclic voltammetry were used to determine these materials' magnetic characteristics, structural integrity, and electrochemical performance. Subsequent integration into supercapacitors and lithium-ion batteries was carried out to evaluate energy storage capacity. Results: The synthesized magnetic nanoparticles showed improved magnetic saturation and charge-discharge characteristics compared to standard materials. When used in supercapacitors, they increased capacitance by 20% and improved cycle stability by 25%. Similarly, these nanomaterials improved the energy density of lithium-ion batteries by 15% and increased their longevity by 30%. Conclusion: The unique magnetic nanoparticles created in this work significantly improve the performance of energy storage devices. The increased capacitance, energy density, and operational stability indicate that these materials for future energy storage applications. Further study is required to optimize these materials for commercial application and investigate their scalability and environmental effects.
Quantum Computing Role in Advancing Medical Physics Research
Authors:   Университет Аль-Нур, Абдалраззак Алаа Салим , Худхаир Амир Бадр ,   Университетский колледж Аль-Мансура, Махди Нидал Рауф ,   Университетский колледж Аль-Хикма, Махмуд Нозад Х. ,   Университет Джихан Сулеймания, Саламе Салам Аль ,   Университет Аль-Турат
Published: September 2024

Исследуется роль квантовых вычислений в исследованиях в области медицинской физики с упором на их потенциал для повышения эффективности и точности вычислений и разработки новых подходов к лечению. Проведен тщательный анализ литературы последних достижений в области квантовых вычислений и их применения в медицинской физике. Тематические исследования рассмотрены для демонстрации практического применения и возможных преимуществ. Теоретические модели протестированы для прогнозирования будущего развития. Статистические данные о реализации квантовых вычислений собраны из многих источников, особенно об улучшении скорости и точности обработки в приложениях медицинской физики. Результаты показывают, что квантовые вычисления могут значительно повысить скорость обработки сложных методов моделирования и визуализации, при этом некоторые квантовые алгоритмы превосходят классические алгоритмы до 100 раз. Статистические результаты подтверждают перспективность квантовых вычислений. При планировании лучевой терапии квантовые вычисления продемонстрировали повышение точности расчета распределения дозы на 25%. Квантовые алгоритмы сократили время вычислений при молекулярном моделировании примерно на 40%, потенциально ускоряя разработку лекарств и индивидуальную терапию на 30%. Квантовые вычисления могут изменить медицинскую физику за счет увеличения вычислительных мощностей, что может привести к прогрессу в диагностике, планировании лечения и разработке лекарств.
Innovative Magnetic Nanomaterials for Improved Energy Storage
Authors:   Университет Алнур, Хамдун Субхи Хаммади , Хусейн Салах Йехья ,   Университетский колледж Аль-Мансура, Нузал Саади Мохамед Дахир ,   Университетский колледж Аль-Хикма, Джавад Акил Махмуд ,   Университетский колледж Аль-Рафидаин, Надер Ибрагим ,   Университет Аль-Турат
Published: September 2024

Изучены инновационные магнитные наночастицы и оценено повышение эффективности и емкости систем хранения энергии. Акцент делается на разработке материалов с оптимальными магнитными характеристиками и их включении в современные методы хранения энергии. Использованы соосаждение и термический распад для создания ряда новых магнитных наноматериалов. Вибрационная магнитометрия образцов, рентгеновская дифракция и циклическая вольтамперометрия использованы для определения магнитных характеристик, структурной целостности и электрохимических характеристик этих материалов. Последующая интеграция в суперконденсаторы и литий-ионные батареи была проведена для оценки емкости хранения энергии. Синтезированные магнитные наночастицы показали улучшенные магнитное насыщение и зарядно-разрядные характеристики по сравнению со стандартными материалами. При использовании в суперконденсаторах они увеличили емкость на 20% и улучшили стабильность цикла на 25%. Аналогичным образом, эти наноматериалы улучшили плотность энергии литий-ионных батарей на 15% и увеличили их срок службы на 30%. Уникальные магнитные наночастицы, созданные в этой работе, значительно улучшают работу устройств хранения энергии. Повышенная емкость, плотность энергии и эксплуатационная стабильность указывают на то, что эти материалы могут быть использованы в будущем для хранения энергии.
Results of surgical treatment of aortic stenosis in patients with a narrow aortic root after Ozaki surgery and bioprosthetics: A retrospective single-center study
Authors: Bazylev Vladlen V. , Mikulyak Artur I. , Khadiev Dzhokhar M. , Karnakhin Vadim A. , Belik Artur O.
Published: September 2024

BACKGROUND: Aortic stenosis (AS) itself is a common disease in patients of older populations, and its combination with a narrow aortic root puts the surgeon in front of choosing the most optimal option. The advantages of Ozaki's operation include hemodynamics close to the native aortic valve (AV) and the absence of the need for lifelong anticoagulant therapy.
AIM: To evaluate the hospital and long-term results of surgical treatment of patients with AS and a narrow fibrous ring who underwent Ozaki surgery or AV prosthetics with a biological prosthesis.
MATERIALS AND METHODS: In total, 836 isolated Ozaki operations or combined interventions of this kind were performed at the Federal Center for Cardiovascular Surgery (Penza). This retrospective single-center study included 150 patients with critical AC (effective opening area ≤1 cm2) in whose surgical treatment tactics Ozaki surgery or prosthetics with a biological prosthesis were used.
RESULTS: In the early postoperative period, group 1 patients had significantly lower values of the average and maximum gradients on the aortic valve and a larger area of the effective opening of the aortic valve. Also, in group 1 patients, the postoperative period of stay in intensive care is significantly higher, which is a consequence of the longer duration of the operation, the time of artificial circulation and myocardial ischemia. Long-term mortality is higher in the group with prosthetics of AV (Log Rank=0.006). Freedom from re-operation according to the analysis, there was no significant difference between the groups (Log Rank=0.226).
CONCLUSION: Ozaki surgery demonstrates the best hemodynamic characteristics on AV in comparison with a biological prosthesis in patients with a narrow fibrous ring of AV in the early and long-term follow-up periods.
Thrombosis of the superior vena cava in a patient with an implanted cardioverter–defibrillator: A case report
Authors: Paranina Elena V. , Lebedev Petr A. , Yakunina Albina V. , Elizarov Maxim A. , Paranin Pavel O.
Published: September 2024

BACKGROUND: Superior vena cava syndrome results from the occlusion of blood flow in the superior vena cava due to external compression, internal obstruction, or infiltration of the vessel wall by a tumor. Although thrombotic complications caused by electrodes of cardiac implantable devices are uncommon in clinical practice, their incidence has been increasing due to the increasing need for such devices, which effectively correct the compromised electrical or mechanical functions of the heart chambers.
CLINICAL CASE DESCRIPTION: Herein, we have presented a case of superior vena cava thrombosis syndrome in a patient who had undergone cardioverter–defibrillator implantation for dilated cardiomyopathy. We have discussed the classification of superior vena cava syndromes, its pathogenesis, and the types of collateral circulation.
CONCLUSION: As observed in our patient, the concurrent presence of chronic heart failure syndrome can make it challenging to recognize superior vena cava syndrome in the early stages of diagnosis.
The Rise of Xylazine Shows Why Local Data Must Inform Policy and Spending Decisions
Authors: Kourvelas Jeremy
Published: September 2024

Local governments have been given direct control over a substantial amount of opioid settlement funding. While state-level data sources are valuable inputs, city and county leaders should consider local data sources when making decisions to ensure timely responses to emerging threats, as is exemplified by the rise of xylazine.
Evolution of the Science and Perception of Harm Reduction
Authors: Wurth Ashley , Bolick Mollie , Yates Tyler
Published: September 2024

As the impact of the overdose crisis continues to worsen, some interventions are proving to be more impactful than others. This article provides insight on the history of harm reduction as it relates to the overdose crisis, how harm reduction strategies are saving lives in North Carolina, and the challenges that could hinder these efforts.
Stigma is Still a Barrier to Substance Use Disorder Treatment in North Carolina
Authors: Ford Amy
Published: September 2024

Almost 12 people in North Carolina die each day from a drug overdose. Primary care providers are ill-equipped to screen, diagnose, and treat substance use disorders. We must see the humanity in all patients and build a better understand­ing of the root causes of, and truly effective solutions for, addiction.
Nation’s Response to the Substance Use Crisis
Authors: Gupta Rahul
Published: September 2024

Dr. Rahul Gupta, the first practicing physician to serve as Director of the White House Office of National Drug Control Policy, shares his perspective on the national response to the opioid crisis and how North Carolina is poised to take action to save lives from overdose.
Lessons From One Physician’s Experience With Substance Use Recovery
Authors: Loyd Stephen
Published: September 2024

I advocate for a “no wrong door” approach, which ensures that no matter where you enter the system—doctor, therapist,

family-referral, self-report, jail, hospital, etc. —you get

the treatment that gives you the best chance at long-term

recovery, even if you don’t have M.D. after your name.
Creating Recovery-Ready Communities
Authors: Lyall Devin
Published: September 2024

This article explores the transformative impact of peer support specialists in creating communities where recovery is not only possible but probable. It focuses on the innovative approach of Wilkes Recovery Revolution, Inc. in addressing substance use disorders and the critical integration of harm reduction services to enhance current recovery efforts.
The Role of Local Health Departments in Addressing the Opioid Crisis and Deploying Opioid Settlement Funds
Authors: Varnadoe Katie
Published: September 2024

This article examines the evolving role of local health departments in North Carolina’s opioid crisis response. Highlighting strategies like community mobilization, data prioritization, and regional partnerships, it illustrates the impact of opioid settlement funds in empowering local health departments to manage behavioral health systems and implement effective opioid abatement interventions.
The North Carolina Model for Opioid Settlements: Partnering to Equip Local Governments’ Overdose Response
Authors: Rushing Jill , Brewington Elizabeth , Sachdeva Nidhi
Published: September 2024

Guided by the North Carolina Memorandum of Agreement (MOA), local governments are investing national opioid settlement funds to respond to the overdose crisis. Community Opioid Resources Engine for North Carolina (CORE-NC) partners have developed tools and resources that local governments are using as they plan, implement, and report on their opioid overdose response.
North Carolina Treatment Courts: Therapeutic Jurisprudence as a Path Toward Recovery and Restoration
Authors: Newby Paul
Published: September 2024

At a time when most of our headlines focus on overdoses and overdose-related deaths, recovery is possible. Treatment courts are providing a path toward recovery and healing.
Regionalización geoespacial de la calidad del agua en la Región Lagunera, México
Authors:   Colegio de Posgraduados (COLPOS), Magadán Revelo Luis Daniel , Jiménez Moren María Josefa ,   Consejo Nacional de Humanidades, Ciencias y Tecnologías (CONAHCYT), Ortiz Rodríguez María Ornella ,   Consejo Nacional de Humanidades, Ciencias y Tecnologías (CONAHCYT)
Published: September 2024

Uno de los mayores problemas ambientales es la contaminación de las fuentes hídricas por metales pesados. La Red Nacional de Medición de Calidad del Agua (RENAMECA) brinda datos confiables sobre la calidad del agua. El presente estudio analizó de forma geoestadística los resultados de la calidad del agua de la concentración de metales pesados; arsénico, cadmio, cromo, mercurio y plomo en la Región Lagunera. Se utilizaron las herramientas de análisis geoespacial del software Qgis para el manejo de datos vectoriales de la cuenca y acuíferos de los sitios monitoreados por RENAMECA. Los resultados muestran que el porcentaje de sitios contaminados con arsénico es de 39% no apto como fuente de abastecimiento para agua potable. Respecto al análisis de metales pesados de los sitios muestreados, el cadmio (99%), cromo (99.3%), mercurio (99.8) y plomo (94.7%) se encuentran en la categoría de “potable excelente”, es decir, de alta calidad para consumo y uso humano. Finalmente, se observó que en la parte baja del río Nazas está contaminado en sus aguas superficiales que componen el cauce, pero principalmente en los aprovechamientos subterráneos dependientes de los acuíferos de la región.
Championing Inclusivity: Underrepresentation of Women in African Academic Leadership and Scholarly Journal Management
Authors: Mwaura Job , Balliah Dinesh
Published: September 2024

Objectives – This study seeks to investigate the exclusion of women from the management of scholarly journals across East Swahili (Kenya, Uganda, Tanzania, South Sudan, Ethiopia, and Anglo-West Africa (Ghana, Nigeria, Sierra Leone, Liberia, Gambia) by delving into the implications of marginalization. Furthermore, the study aims to illuminate the often-overlooked experiences of black women, whose narratives are frequently overshadowed by those of black men or subsumed within the context of white women.
Methods – By employing empirical evidence from African Journals Online (AJO) and institutional journal data from countries in focus, this study examines the pervasive domination of men within scholarly journal management in East Swahili and Anglo-West Africa.
Results – Findings reveal a widespread dominance of men in the management of scholarly journals in the targeted countries despite the considerable presence of women in academia.
Conclusion – The underrepresentation of women in academic leadership positions carries significant consequences, including a lack of diversity in decision-making processes. Such homogeneity can perpetuate existing disparities and impede progress towards gender equality within academia. Furthermore, discussions concerning gender inequality in academia often neglect the experiences of black women.
Maternidade na contabilidade: Uma abordagem sob a perspectiva work-life balance
Authors: Kruger Silvana Dalmutt , Santos Edicreia Andrade dos , Hillen Cristina
Published: September 2024

Contextualização: Nos últimos anos, o equilíbrio entre vida profissional e pessoal têm sido uma preocupação entre empregados, empregadores, acadêmicos, pesquisadores entre outros. 
Objetivo: Este estudo teve por objetivo evidenciar as percepções de mulheres atuantes nos programas de pós-graduação (PPGs) em contabilidade do Brasil sobre a maternidade, discutindo os desafios de conciliar as demandas profissionais e familiares. 
Método: Realizaram-se entrevistas com 9 professoras de PPGs de contabilidade cujos dados foram analisados por meio da técnica de análise textual discursiva.
Resultados: Os resultados evidenciaram que as percepções remetem a diversos desafios e dificuldades, especialmente em relação à adaptação entre as exigências profissionais e a maternidade. A trajetória de vida, as experiências e vivências indicam que o ambiente de trabalho e a cultura dos programas influenciam nos discursos e nas percepções das respondentes. 
Conclusões: Conclui-se destacando a importância de discussões acerca da temática, bem como a necessidade de mudanças culturais que possam agregar empatia diante do tempo e desafios da maternidade.
Igualdade de gênero: Um estudo da participação feminina em cargos de gestão em firmas de auditoria no Brasil
Authors: Carneiro Luziberto Barrozo , Santos Thais Helen Andrade
Published: September 2024

Contextualização: A presença feminina no mundo dos negócios vem crescendo, todavia ainda existem vários obstáculos para alcançar a igualdade de oportunidades em cargos gerenciais. As mulheres têm baixa representatividade em cargos de gestão, principalmente os de alto escalão. Este estudo foi feito para analisar a representatividade feminina nos cargos gerenciais em firmas de auditoria no Brasil.
Objetivo: Este estudo analisa a representatividade feminina em cargos de liderança nas firmas de auditoria Big Four do Brasil entre o período de 2016-2023. 
Método: Neste sentido, foi realizada uma pesquisa documental, inspecionando-se os Relatórios de Sustentabilidade GRI destas organizações. Também foram buscadas, através dos sites das empresas, as informações acerca dos programas desenvolvidos que contribuem para a ascensão da mulher na função de líder. 
Resultados: Os resultados demonstraram que a representatividade feminina, principalmente no cargo de sócia, ainda é baixa quando comparada com a masculina, embora tenha tido evolução nos anos analisados, progredindo de 16% (2016) a 25% (2023) no caso da firma EY e 16% (2016) a 26% (2023) na KPMG. As Big Four iniciaram políticas de equidade de gênero e desenvolvimento de talentos femininos.
Conclusões: Conclui-se que o Teto de Vidro ainda se faz presente nestas organizações e está sendo descontruído aos poucos.
Catherine Malabou y la plasticidad: un motivo filosófico para el mundo contemporáneo
Authors: Suárez Gómez Ainhoa
Published: September 2024

En este artículo analizo el concepto de plasticidad de la filósofa francesa Catherine Malabou en un diálogo transdisciplinario entre filosofía, neurociencia y psicoanálisis que expone en sus libros ¿Qué hacer con nuestro cerebro? (2004), Los nuevos heridos. De Freud a la neurología, pensar los traumatismos contemporáneos (2007) y Ontología del accidente. Ensayo sobre la plasticidad destructiva (2009). El recorrido por estas obras me permite situar el pensamiento de Malabou en el marco de una reflexión materialista que indaga sobre el vínculo (problemático) entre cuerpo y mente o, más precisamente, entre cerebro y psique. Argumento que su propuesta, ya sea desde la crítica al imperativo capitalista que exige flexibilidad incesante a los individuos, o desde la reflexión sobre las consecuencias identitarias de los accidentes cerebrovasculares, ofrece una resignificación radical del sujeto contemporáneo al tiempo que sugiere formas de acción destinadas a efectuar cambios políticos y sociales significativos en respuesta a la crisis civilizatoria actual.
Sustitución Sostenible del Tablero de MDF-Melamina en Mesas Binarias Desechadas en Instituciones de Educación Superior
Authors: Córdova López Yael Isaac , Bautista Valier Emmanuel , Laines Canepa José Ramón , Sosa Olivier José Aurelio , Espinosa de los Monteros Alejandra E.
Published: September 2024

La gestión inadecuada de residuos plásticos es un problema global debido a su lenta degradación, que contamina el ecosistema. El reciclaje de Polietileno de Alta Densidad (PEAD) es una solución sostenible que reduce las emisiones de carbono comparado con la producción de plástico nuevo, beneficiando el ambiente y la economía. Este proyecto fabrica tablas de PEAD en laboratorio para reemplazar tableros de MDF-Melamina deteriorados en la DACBiol-UJAT. El proceso de moldeo por compresión incluye ocho pasos: recolección, lavado, molienda, fundición, moldeado, prensado, desmoldeado y acabado. Se usaron 5.6 kg de PEAD para fabricar 16 tablas de 17x17x1.2 cm y resina epóxica para el acabado final. Los resultados demuestran que el PEAD reciclado es una alternativa viable para reducir residuos y contaminación, ofreciendo una solución a instituciones públicas y privadas.
Validação de vídeo educativo sobre as medidas de prevenção e controle da covid-19 e outras síndromes respiratórias agudas graves para escolares
Authors: Lima da Silva Thays Mylena , Leite Meirelles Monteiro Estela Maria , Tavares Souza Gracielly Karine , Dos Santos Braga Amanda
Published: September 2024

Objetivo: Descrever o processo de construção e validação de um vídeo educativo sobre as medidas de prevenção e controle da Covid-19 e outras Síndromes Respiratórias Agudas Graves (SRAG). Método: Estudo metodológico que possibilitou o desenvolvimento e validação de uma tecnologia educacional em uma abordagem lúdica, para crianças. A  pesquisa  foi  desenvolvida  em  quatro  etapas: coleta de conhecimentos prévios e levantamento bibliográfico; criação do roteiro do vídeo educativo; construção do material educativo (ilustração, layout, design e textos) e validação da tecnologia por especialistas e escolares. Resultados: A tecnologia foi validada quanto ao conteúdo por 14 juízes, com Índice de Validade de Conteúdo (IVC) de 0,86%, e quanto a aparência por 25 escolares, com IVC de 0,93%. Conclusão: O vídeo educativo foi validado quanto ao conteúdo e aparência, podendo ser utilizado como material educativo por profissionais de enfermagem e professores do ensino infantil e fundamental, promovendo uma articulação entre educação e saúde, além de ser uma forma de instrumentalizar profissionais que atuam com saúde nas escolas, seguindo as bases do Programa Saúde na Escola.
Hydraulic Fracturing, Fault System Architecture, and the Details of Anthropogenic Earthquakes in the Post-Pennsylvanian Delaware Basin of West Texas
Authors: Morris Alan , Smye Katie , Hennings Peter
Published: September 2024

Since about 2009, oil and gas production activities in the Delaware Basin of West Texas and southeast New Mexico have caused a rapid increase in rates of seismicity. This seismicity has been driven primarily by pore fluid pressure increases caused by subsurface injection of both waste saltwater and hydraulic fracturing fluids. High-quality teleseismic monitoring shows that earthquakes have been concentrated in previously dormant fault systems. The analysis of the timing of earthquake occurrence and magnitudes in two southern Delaware Basin fault systems indicates that continuous versus sporadic seismic energy release corresponds with continuous versus sporadic hydraulic fracturing and saltwater disposal activities proximal to the faults, respectively. Treating earthquake magnitudes as a proxy for fault displacement reveals that fault reactivation occurs in patterns that resemble segmented faults both hard and soft linked and that this distribution is likely a faithful representation of the fundamental architecture of the reactivated fault and not simply a function of pore pressure perturbation. The spatial distribution of earthquake magnitudes in the two fault systems illuminates the strong control that preexisting fault system architecture exerts on fault reactivation. Larger earthquakes tend to occur in larger, likely hard linked, fault segments. This suggests that a priori knowledge of a fault system’s architecture can provide some degree of predictability for induced seismicity.
Breakthroughs in Active Rotating RCD Development: A Discussion on Technical Development and Performance Evaluation Through Testing
Authors: Haeberle Hunter , Kotarek Katie , Crowdis Calvin
Published: September 2024

Typical Rotating Control Device (RCD) offerings used for offshore Managed Pressure Drilling (MPD) operations do not include active sealing elements with the ability to rotate. An active/rotating RCD can significantly increase seal life through added operational control and real-time monitoring. This paper presents major performance advancements for an active/rotating RCD using hyperelastic FEA of the sealing element, rapid prototyping through correlation with testing, and development of a high-performance bearing system.

Improvements to the sealing element life were realized by utilizing FEA techniques to optimize the seal design and correlate with full-scale test results. The results of this analysis/design/test approach will be discussed, emphasizing the evaluation of the sealing element with an off-center drill string.

The development of a new bearing system is also presented with a comparison to roller bearings. The bearing system was designed to withstand rigorous testing simulating operational conditions such as side loads due to off-center drill string. The laboratory test results demonstrate the enhanced performance of this RCD and validate its suitability for demanding applications.

Finally, several product use cases for this RCD are explored, demonstrating its ability to withstand pressure from above and below for broad operational applications, such as In-Riser, Below-Tension-Ring (BTR), and Riserless systems. Future work includes API 16RCD (API 16RCD, June 2022) Qualification and Service Application Testing to replicate anticipated field conditions.
Handling Gas-In-Riser – Part II: Numerical Simulation of Riser Equilibrium Point (REP), Riser-Gas Tolerance (RGT) and Riser Unloading, and Validation of the 2023 IADC Deepwater RGH Guidelines Calculation Worksheet
Authors: de Sousa P. Cavalcanti , Gabaldon O. , Kaldirim O. , Sonnemann P.
Published: September 2024

Several tools can simulate gas-liquid flow under typical operational conditions. However, the rapid expansion of gas in the riser (GIR) as it approaches the surface represents a challenge for many of these tools, as flow conditions fall outside assumptions used in developing their numerical models. Tools able to simulate the full transient behavior of GIR require expert setup and extended run-times. This work uses these tools to run simulations to estimate REP, RGT and riser unloading.

The simulation work shows that RGT is generally higher than what is perceived by the industry. This means risers can safely handle larger volumes of gas without exceeding their operational ratings, assuming the influx is circulated using the Fixed Choke, Constant Outflow (FCCO) method. The results also show that the riser equilibrium in WBM happens deeper in relation to SBM, all else remaining the same, and that riser unloading is more intense in WBM, with peak liquid and gas outflows surpassing those of SBM manyfold. The results are also used to evaluate the reliability and intended conservative nature of the RGT Worksheet.

This work demonstrates through simulation that GIR can be safely handled with existing surface equipment in many rigs. This represents a significant reduction in NPT and minimizes risks. The authors also demonstrate that calculations performed using the simplified methods considered in the RGT Worksheet can give conservative safeguards to offshore operations.
UBO Efficiency: The Art of Building Resilience Through an Operational Buffer While Flow Drilling
Authors: Almasri Mohamad , Thi Andy
Published: September 2024

Advancements in technology, shifting drilling environments, and complex reservoirs have transformed the challenges in oil and gas well drilling. Regulations, best practices, and artificial intelligence have emerged to enhance safety.

Flow drilling is an Underbalanced Operation (UBO) is defined as drilling an oil and gas well while continuously circulating gas to the surface to be handled by surface separation equipment and ultimately flared. While this practice is a known operation in the oil and gas industry, gas expanding uncontrollably at surface can have catastrophic impacts on lives and the surrounding environment.

There are many benefits to utilizing underbalanced operations to create an operational buffer while flow drilling, including allowing for continuous control of the well and faster response times, which aids in maintaining constant bottomhole pressure and preventing any additional influxes from entering the wellbore.

This paper discusses the execution of Underbalanced drilling techniques in flow drilling applications in North America and the importance of adaptive control strategies based on a flow drilling matrix. UBO techniques enhance safety during flow drilling operations; however, the significance of an operational buffer helps mitigate the risks associated with well control events. This paper explores the complexities of flow drilling, its drawbacks, and successes in application and focuses on its relevance to underbalanced drilling projects.
Managed Pressure Cementing in Deepwater Environment, Evolving from Saving the Well with Perfectly Executed Challenging Primary Cementing Operations to Bring Back Wells to Productive Life with State-Of-The-Art Remedial Cementing Jobs on Controlled Pressure Manner
Authors: Alvarado Pier , Ramasamy Sundar , Valecillos Juan C. , Arnone Maurizio , Booker Daniel , Spreafico Danny , Kotara Ben , Christensen Clayton , Thain Jon , Brinkley Ryan
Published: September 2024

Managed Pressure Cementing has been utilized in many applications where MPD equipment is installed on the rig. Different challenges in well construction and delivery have led MPD technology to be used not only for drilling narrow margin type wells, but also for tripping, logging, coring, running casing, and cementing. For large production intervals, achieving hydraulic isolation with cement is crucial to the successful performance of a producing well.

Many operators in deepwater are seeing the benefit of using MPD to perform Managed Pressure Cementing as a mitigation to lost returns during primary, conventional cement jobs. Using MPD during the running of casing and cementing allows for overbalance pressures to stay within the pore pressure / fracture gradient window, thus increasing the chances of getting a successful cement job.

New ways of utilizing MPD to achieve well objectives are now being used in the area of remedial cementing operations. This is a solution that helps to achieve well objectives as well as meets regulatory requirements.

This paper gives examples for planning and execution of primary and remedial Managed Pressure Cementing in deepwater drilling operations.
Teaching Arabic to Specialists in the Digital Age: Strategies and Challenges
Authors: Chalghoum Naima
Published: September 2024

In an era where the digital realm is redefining the boundaries of learning, the teaching of Arabic acquires new dimensions. This field targets specific audiences with distinct characteristics and complex linguistic needs. In particular, the instruction of Arabic to specialists faces a range of issues and challenges that require focused guidance and attention. This research paper aims to highlight the main issues, such as the diversity of learners’ goals, needs, and motivations. The importance of e-learning and the methodologies for utilizing digital resources to enhance the effectiveness of Arabic language instruction in general with that for specialists and also for general life situations are underscored. Major challenges faced in this process, particularly in the Arab world are discussed. The findings of this study underscore the importance of integrating e-learning and digital tools in teaching Arabic to specialists and highlight the need for greater efforts to develop educational curricula. And recommendations for improving the outcomes of Arabic language education are provided.
АНАЛИЗА ГРЕШАКА ПРИ УЧЕЊУ СРПСКОГ ЈЕЗИКА КАО СТРАНОГ НА ПРИМЈЕРУ ГРУПЕ ЊЕМАЧКИХ СТУДЕНАТА
Authors: Ч. Кубурић Мацура Мијана , З. Говедар Нина
Published: September 2024

У раду се анализирају грешке у завршним писменим радовима њемачких студената који су похађали интензивни курс српског језика у трајању од двије седмице / 34 часа у фебруару 2023. године на Филолошком факултету Универзитета у Бањој Луци. Грешке су систематизоване према групама формираним на основу нивоа иницијалног познавања српског језика, а потом и према типовима грешака, тј. према језичким нивоима на којима настају – на ортографске/фонолошке, морфолошке/морфосинтаксичке и синтаксичке. Циљ рада јесте да се уоче најчешће грешке и да се утврди евентуални међујезички трансфер како би се маркирале и предуприједиле проблематичне тачке у настави српског језика као страног будућим полазницима, а поготово онима чији је матерњи језик њемачки.
L’INSEGNAMENTO DELL’ASPETTO VERBALE NELLA DIDATTICA DEL SERBO E CROATO L2: ALCUNE RIFLESSIONI E PROPOSTE
Authors: S. Runić Marija
Published: September 2024

Nel presente contributo si riflette sull’insegnamento dell’aspetto verbale serbo e croatoa studenti italofoni e si avanzano alcune proposte per il suo insegnamento. In particolare,il percorso delineato si avvale degli apporti della teoria linguistica formale e cognitiva e litraduce in una serie di attività e materiali didattici improntati all’analisi contrastiva ealla riflessione metalinguistica. Inoltre, si forniscono suggerimenti su come, quando e inche ordine affrontare diversi elementi della conoscenza dell’aspetto (di natura semantica,pragmatica, morfologica, lessicale, metalinguistica) necessaria per gestire il sistemaaspettuale in serbo e croato. Il contributo contiene, a titolo di esempio, alcuni esercizisperimentati in classe ed è pensato come una risorsa per gli insegnanti di serbo e croatocome L2.
LA MÉTAPHORE FILÉE DANS LE DISCOURS SPÉCIALISÉ EN FRANÇAIS. DE LA DÉNOMINATION SCIENTIFIQUE À LA VULGARISATION
Authors: Holeš Jan , Honová Zuzana
Published: September 2024

La métaphore, un phénomène extrêmement varié, a été traitée non seulement dans le contexte de la poésie et de la rhétorique, mais aussi dans le domaine de la terminologie. Outre les métaphores d’ornement, la langue regorge de metaphors lexicalisées remplissant la fonction dénominative que les terminologues reconnaissent depuis longtemps comme une source importante de termes. De même, la métaphore filée se retrouve couramment dans la langue spécialisée, que ce soit au niveau du lexique ou au niveau du texte, remplissant plusieurs fonctions. L’article se propose d’étudier le rôle de la métaphore filée utilisée à des fins de dénomination dans les terminologies spécialisées de certains domaines (linguistique, informatique, génétique et économie) en tant que catachrèses approuvées par les communautés savantes et légitimées par leur usage terminologique, ainsi que son utilisation dans des textes de vulgarization scientifique, où elle possède une fonction explicative, servant à rapprocher un domaine de spécialité inconnu au travers d’un domaine connu et à rendre intelligible le texte spécialisé au destinataire.
ВОКАТИВНИ ИЗРАЗИ У СЛУЖБИ СВЕТИМА АТАНАСИЈУ И КИРИЛУ (18. ВИЈЕК)
Authors: Б. Берак Вера
Published: September 2024

У раду се разматрају вокативни изрази и њихова значења у богослужбеном поетском тексту, на примјеру Службе Светима Атанасију и Кирилу, српскословенског рукописа с почетка 18. вијека из Музеја Старе цркве у Сарајеву. Служба као комплексан пјеснички жанр с литургијском примјеном садржи и фреквентне вокативне изразе, чија структура обухвата монолексичке и синтагматске форме, реализоване у више различитих модела. Значењски дијапазон вокативних израза не ограничава се на основним значењима, него обухвата и експресивна значења, као и функције молитвеног обраћања, те прослављања светитеља.
ELEMENTS WITHOUT PRIOR INSTRUCTION (EWPI), A NEW CATEGORY FOR ANALYSING SECOND LANGUAGE ACQUISITION: A PANORAMIC REVIEW OF ERROR ANALYSIS
Authors: R. Sapiña Joan
Published: September 2024

This article presents a panoramic review of Error Analysis and Interlanguage studies, with the aim of reflecting on the need to include a new taxonomic category in said research. If formal second language teaching is an important factor in learning, there is no doubt that research on students' interlanguage should reflect this importance. This can be formulated through an operational category in formal learning contexts that allows the student's data to be classified, depending on whether the element of analysis has been previously instructed or not. This category gives great importance to the entire production and opens new paths in the dialogue with the influence of non-formal learning and with the positive impact of related languages, regardless of whether it is the mother tongue. It also highlights the importance of observing, quantifying and describing linguistic phenomena that are not necessarily produced in large absolute numbers, but that might still be relevant to explain the evolution of second language acquisition.
A COMPARATIVE ANALYSIS OF THE STRUGGLE AGAINST COLONIAL OPPRESSION IN IRELAND AND INDIA THROUGH THE PRISM OF LIAM O’FLAHERTY AND KAMALA MARKANDAYA
Authors: Đorić Francuski Biljana Đ.
Published: September 2024

Ireland and India, even though geographically and ethnically distant countries, still possess many similarities, mostly related to the fact that they both used to be colonies of the British Empire. Before gaining independence, similarly marked by Partition in both countries, they were battlefields of colonial confrontation, depicted in many literary works. The purpose of this article is to make a comparison by analysing selected novels written by Liam O’Flaherty from Ireland and the Indian-born Kamala Markandaya, which focus on the clash between the coloniser and the colonized in these two countries. The most important point revealed by comparative analysis is that neither O’Flaherty nor Markandaya blindly accuse the coloniser alone for the misery and sufferings of the Irish/Indian people, since they also find fault with their respective governments, aware that progress in their countries can be achieved only as a result of the joint efforts of their governments and peoples.
ТРАНСФОРМАЦИЈА ДРУГОГ У РОМАНУ МОРИС Е. М. ФОРСТЕРА
Authors: Ч. Црногорац Бранко
Published: September 2024

Романи Е. М. Форстера представљају један заокружени циклус књижевног стваралаштва у многим аспектима теоријског разматрања, понајвише у оним о којима је и сам писац проговорио када се нашао у улози књижевног критичара и теоретичара. Но, овакав суд вриједи првенствено за пет романа објављених за његовог живота који су, сви до једног, достигли ниво књижевног класика и који су успјешно екранизовани и постављени на позоришну сцену. Насупрот томе, у овом раду обрађује се постхумно објављени роман Морис, који пружа једнак увид у најскривеније интимне кутке самог аутора у контексту хомосексуалности као проскрибоване сексуалне оријентације у тадашњем британском друштву, те у оне елементе његовог објављеног опуса којима се критичари нису бавили све до пуноправног успостављања колонијалних/постколонијалних студија као легитимног поља књижевних истраживања. У том погледу, рад се бави појмом Другог/Страног и његовом трансформацијом од дехуманизованог епитома друштвене маргине до савршено прикривеног представника доминантних структура који у много чему надмашује и свој узор те га успјешно деконструише, пророчки нам показујући судбину Британске империје у деколонизованом свијету.
MITOLOGIJA KAO POETSKI INSTRUMENT U POEZIJI VILIJAMA BATLERA JEJTSA
Authors: M. Milošević Luka
Published: September 2024

Ovaj rad bavi se izučavanjem mitoloških upliva u poeziji Vilijama Batlera Jejtsa (William Butler Yeats, 1865). Jejts je poznat kao pjesnik irskog nacionalnog preporoda. S tim u vezi, njegove pjesme obiluju aluzijama na motive i ličnosti iz irske mitologije. Sa druge strane, Jejtsu nije bila strana ni upotreba elemenata iz drugih nacionalnih mitologija, naročito starogrčke. Analizirajući mitološke motive koje Jejts upotrebljava kao poetske alate, cilj nam je da proniknemo u moć folklora i kulturne baštine uopšte. Jejts mitske elemente nije koristio jednoobrazno. Stoga je naš zadatak da uočimo kako je ovaj pjesnik mitologiju upotrebljavao za buđenje irske nacionalne svijesti, prikazivanje univerzalnih metafizičkih problema, ali i da irsku kulturnu baštinu uključi u evropske tokove, rame uz rame sa starogrčkim vanvremenskim junacima i bogovima.
ЛЕГЕНДА ПУНА СВЕТЛОСТИ И МРАКА: АНДРИЋ И ГОЈА У НАСТАВНОМ ПРОЦЕСУ
Authors: З. Арва Сара
Published: September 2024

Истраживање представља једну могућност наставне обраде Андрићевих дела „Разговор са Гојом” и „Гоја” у вертикалној корелацији са предметом Ликовна култура. Први део рада упућује на теоријска разматрања корелацијско-интеграцијског приступа, анализирајући начин на који је сликар Гоја представљен у Читанкама и уџбеницима Ликовне културе различитих издавача. Средишњи део приказује схвровитост употребе виртуелне изложбе „Гоја: цртежи из Прадо музеја” у наставном процесу и то посредством Андрићеве рецепције Гојиних сликарских дела. Последњи и закључни сегмент овог рада промишља један интерпретативни оквир у који се може уписати фигура уметника, заснован на дискурсу зла: тумачење демона у уметнику и демонског у уметности.
WHEN COMMUNICATION AND CULTURE CROSS PATHS
Authors: M. Prodanović Marijana
Published: September 2024

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ЗБОРНИК РАДОВА ПОЕТИКА СВЕТИСЛАВА МАНДИЋА
Authors: G. Reljić Jelena
Published: September 2024

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Statistical downscaling model for future projection of daily IDF relationship by Markov chain and kernel density estimator
Authors: Halder Subrata , Saha Ujjwal
Published: September 2024

Changes in climate might have a significant impact on rainfall characteristics, including extreme rainfall. This study aims to project the future daily rainfall, preserving most of the rainfall characteristics, including extreme rainfall incorporating climate changes. This paper presents two hybrid semi-parametric statistical downscaling models for future projection of IDF curves. The precipitation flux from seven scenarios of ten GCMs and observed daily rainfall data are considered as predictors and predictand variables, respectively. At site, daily rainfall occurrence is modeled using a two-state first-order Markov chain. Rainfall amounts on each wet day are modelled using a univariate nonparametric kernel density estimator. Two types of amount generation models are presented in this study. The bounded model (KDE-SP) is developed, considering the support for the kernel distribution as positive. In the unbounded model (KDE-Ext), the wet days are reclassified as extreme and non-extreme rainy days. A significant increasing trend can be observed in the future projected intensity–duration–frequency relationships. The maximum increment using empirical distribution is observed as 93.21 and 80.93% on a 5-year return period in the far future for the SSP5-8.5 scenario, using KDE-Ext and KDE-SP models, respectively. Although both methods show similar results, the KDE-Ext model performs better in simulating extreme rainfall.
Assessment of groundwater quality, irrigation suitability, and health risks from radon and heavy metals near Ilokun dumpsite, Ado-Ekiti, Nigeria
Authors: Badmus Ganiyu Olabode , Ajiboye Yinka , Ogungbemi Oluwaseun Samuel , Jita Aondona Peter , Adenuga Omolara Abosede
Published: September 2024

Concentrations of 222Rn and other toxic metals (Ni, Cu, Fe, Cd, Zn, Pb, Cr, and Mn) were measured by alpha spectrometry using Rad7 and atomic absorption spectrophotometry, respectively, in the water samples from the Ilokun dumpsite, Ado-Ekiti, Nigeria. The physicochemical parameters of the groundwater were also assayed to determine its suitability for drinking and irrigation purposes. While the physicochemical parameters met the World Health Organization (WHO)-safety standards, Cu, Fe, Cd, Pb, Cr, and Mn exceeded permissible limits. Hazard index (HI) values for adults (8.40) and children (39.23) indicated heightened susceptibility to non-carcinogenic health risks among both age group populations. The 222Rn concentrations present in the studied samples range from 5.4 to 23.1 Bq l−1 with an average of 13.9 Bq l−1. Approximately 60% of the samples have radon concentrations above the US Environmental Protection Agency (EPA)-maximum contaminant level of 11.1 Bq l−1. The evaluated radiation doses to the stomach and respiratory tract due to radon content in the water are well below the WHO-specified individual dose criterion of 0.1 mSv year−1. This study suggests a need for groundwater resource management strategies and measures to protect human health from radiological and toxicological risks associated with groundwater consumption around the Ilokun dumpsite.