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2024

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N Y State Dent J January 2024 Jan 2024

N Y State Dent J January 2024

The New York State Dental Journal

In the January 2024 issue, the reader will find the following feature articles:

  • When One Door Closes, Another Opens
  • Oral Manifestations of Metastatic Diseases: A Clinical and Histologic Analysis of Seven Cases
  • Dentistry Transformed: An Overview of Artificial Intelligence’s Role in Dental Care
  • Unlocking the Future of Dentistry: A Summary of AI and Augmented Intelligence in Dentistry from ADA’s White Paper
  • Diagnostic Detail: Understanding the Impact of Tooth Rotation in Correcting Mucogingival Defects

This issue includes regular columns with regional news impacting the New York membership including: editorial and perspectives columns, legal, association activities, component news, continuing education opportunities, and …


Complexation Of Diserinol Isophthalamide With Phosphorylated Biomolecules In Electrospray Ionization Mass Spectrometry, Madeline Schultz, Neil A. Ellis, Nwanne D. Banor, Daniel A. Thomas Jan 2024

Complexation Of Diserinol Isophthalamide With Phosphorylated Biomolecules In Electrospray Ionization Mass Spectrometry, Madeline Schultz, Neil A. Ellis, Nwanne D. Banor, Daniel A. Thomas

Chemistry Faculty Publications

Electrospray ionization (ESI) enables gentle transfer of biomolecules from solution to vacuum, facilitating the study of biomolecular structure under highly controlled conditions. However, biomolecules are desolvated during the ESI process, and the loss of ionic hydrogen bonds to solvent molecules can drive structural rearrangement, most prominently at solvent-exposed charge sites. Microsolvation reagents can bind to these bare charge sites in ESI mass spectrometry (ESI–MS) experiments, providing alternative intermolecular interaction partners. Previously, 18-crown-6 was shown to be an effective reagent for binding to cationic monoalkylammonium residues. More recently, diserinol isophthalamide (DIP) was reported as an analogous anionic microsolvation reagent, primarily for …


Feri: A Multitask-Based Fairness Achieving Algorithm With Applications To Fair Organ Transplantation, Can Li, Dejian Lai, Xiaoqian Jiang, Kai Zhang Jan 2024

Feri: A Multitask-Based Fairness Achieving Algorithm With Applications To Fair Organ Transplantation, Can Li, Dejian Lai, Xiaoqian Jiang, Kai Zhang

Faculty, Staff and Student Publications

Liver transplantation often faces fairness challenges across subgroups defined by sensitive attributes such as age group, gender, and race/ethnicity. Machine learning models for outcome prediction can introduce additional biases. Therefore, we introduce Fairness through the Equitable Rate of Improvement in Multitask Learning (FERI) algorithm for fair predictions of graft failure risk in liver transplant patients. FERI constrains subgroup loss by balancing learning rates and preventing subgroup dominance in the training process. Our results show that FERI maintained high predictive accuracy with AUROC and AUPRC comparable to baseline models. More importantly, FERI demonstrated an ability to improve fairness without sacrificing accuracy. …


Acceptability Of Anal Human Papillomavirus Home Self-Sampling And Clinician Sampling Among Sexual And Gender Minority Individuals In Milwaukee, Wisconsin: The Prevent Anal Cancer Self-Swab Study, Jenna Nitkowski, Anna R Giuliano, Tim Ridolfi, Elizabeth Chiao, Maria E Fernandez, Vanessa Schick, Michael D Swartz, Jennifer S Smith, Alan G Nyitray Jan 2024

Acceptability Of Anal Human Papillomavirus Home Self-Sampling And Clinician Sampling Among Sexual And Gender Minority Individuals In Milwaukee, Wisconsin: The Prevent Anal Cancer Self-Swab Study, Jenna Nitkowski, Anna R Giuliano, Tim Ridolfi, Elizabeth Chiao, Maria E Fernandez, Vanessa Schick, Michael D Swartz, Jennifer S Smith, Alan G Nyitray

Faculty, Staff and Student Publications

Purpose: Anal cancer has disproportionately high incidence among sexual minority men. We compared acceptability of home versus clinic human papillomavirus (HPV) anal swabbing.

Methods: The Prevent Anal Cancer Self-Swab Study recruited sexual and gender minority individuals in Milwaukee, Wisconsin. Eligible participants were randomized to a home or clinic arm. Home participants received a mailed anal HPV self-sampling kit. Clinic participants attended a clinic appointment where a clinician collected an anal HPV swab. We examined acceptability (overall thoughts, comfort with method, pain, and future willingness to swab) of home versus clinic swabbing using postswab survey responses.

Results: A total of 191 …


Characteristics And Quality Of Life Of People Living With Comorbid Disorders In Substance Use Recovery Residences, Elizabeth O Obekpa, Sheryl A Mccurdy, Kathryn R Gallardo, Serena A Rodriguez, Cecilia Ganduglia Cazaban, H Shelton Brown, James J Yang, J Michael Wilkerson Jan 2024

Characteristics And Quality Of Life Of People Living With Comorbid Disorders In Substance Use Recovery Residences, Elizabeth O Obekpa, Sheryl A Mccurdy, Kathryn R Gallardo, Serena A Rodriguez, Cecilia Ganduglia Cazaban, H Shelton Brown, James J Yang, J Michael Wilkerson

Faculty, Staff and Student Publications

BACKGROUND: Opioid use disorder (OUD) is associated with significant morbidity and mortality; however, research on physical and mental health comorbidities and health-related quality of life (HRQoL) among people taking medication for OUD (MOUD) and living in recovery residences is sparse. We investigated the prevalence of comorbidities and examined which EQ-5D-5L HRQoL dimensions are most affected by these comorbidities.

METHODS: Data were collected from 358 residents living in 14 Texas-based recovery residences from April 2021 to June 2023. The EQ-5D-5L descriptive system comprises five dimensions (mobility, self-care, usual activities, pain/discomfort, anxiety/depression). Each dimension has five levels of perceived problems, dichotomized into …


Human Papillomavirus (Hpv) Vaccination In Males: Associations Of Hpv-Related Knowledge And Perceptions With Hpv Vaccination Intention Among Korean Mothers Of Boys, Jihye Choi, Paula Cuccaro, Christine Markham, Sooyoun Kim, Irene Tamí-Maury Jan 2024

Human Papillomavirus (Hpv) Vaccination In Males: Associations Of Hpv-Related Knowledge And Perceptions With Hpv Vaccination Intention Among Korean Mothers Of Boys, Jihye Choi, Paula Cuccaro, Christine Markham, Sooyoun Kim, Irene Tamí-Maury

Faculty, Staff and Student Publications

OBJECTIVES: Human papillomavirus (HPV) vaccination rates among males are suboptimal worldwide. In South Korea, little is known about parents' intention to vaccinate boys against HPV. Therefore, we examined the associations of HPV-related knowledge and perceptions with vaccination intention among Korean mothers of boys.

METHODS: From August to December 2021, eligible mothers were surveyed about HPV-related knowledge, perceptions, and intention to vaccinate their sons against HPV. Mothers were categorized into no intention, contemplating, and intention to vaccinate groups. Using analysis of variance, we compared the groups' scores on the scales measuring HPV-related knowledge, attitudes, and beliefs. We conducted a multinomial logistic …


A Randomized Controlled Study Of Auricular Point Acupressure To Manage Chemotherapy-Induced Neuropathy: Study Protocol, Nada Lukkahatai, Michael V Nguyen, Jingyu Zhang, Yu-Min Cho, Chitchanok Benjasirisan, Heijingzi Monica Jia, Claudia M Campbell, Jennifer Kawi, Hulin Wu, Hongyu Wang, Rupsikha Bora, Johannes Thrul, Constance M Johnson, Thomas J Smith Jan 2024

A Randomized Controlled Study Of Auricular Point Acupressure To Manage Chemotherapy-Induced Neuropathy: Study Protocol, Nada Lukkahatai, Michael V Nguyen, Jingyu Zhang, Yu-Min Cho, Chitchanok Benjasirisan, Heijingzi Monica Jia, Claudia M Campbell, Jennifer Kawi, Hulin Wu, Hongyu Wang, Rupsikha Bora, Johannes Thrul, Constance M Johnson, Thomas J Smith

Faculty, Staff and Student Publications

Objective: Chemotherapy-induced neuropathy (CIN) significantly impacts cancer patients, leading to functional disability, diminished quality of life, and increased healthcare costs amid the ongoing opioid crisis. Auricular point acupressure (APA), a non-invasive and non-pharmacological alternative, has shown potential for alleviating the pain, numbness, and tingling associated with CIN. This study aims to assess the efficacy of APA for CIN symptoms and physical function and to examine the mechanisms underlying APA's effects on CIN.

Methods: This is a three-arm randomized controlled clinical trial protocol. Patients aged 18 and older who are experiencing CIN are randomly assigned to one of the three groups: …


A Comparative Study Of Venezuelan Immigrants’ Pre- And Post-Migration Concerns For Their Children In The United States And Colombia, Aigerim Alpysbekova, Pablo Montero-Zamora, Mary H Soares, Carolina Scaramutti, Sumeyra Sahbaz, Maria Duque, Tara Bautista, Maria Fernanda Garcia, Christopher P Salas-Wright, Mildred M Maldonado-Molina, Melissa M Bates, Augusto Pérez-Gómez, Juliana Mejía Trujillo, Eric C Brown, Seth J Schwartz Jan 2024

A Comparative Study Of Venezuelan Immigrants’ Pre- And Post-Migration Concerns For Their Children In The United States And Colombia, Aigerim Alpysbekova, Pablo Montero-Zamora, Mary H Soares, Carolina Scaramutti, Sumeyra Sahbaz, Maria Duque, Tara Bautista, Maria Fernanda Garcia, Christopher P Salas-Wright, Mildred M Maldonado-Molina, Melissa M Bates, Augusto Pérez-Gómez, Juliana Mejía Trujillo, Eric C Brown, Seth J Schwartz

Faculty, Staff and Student Publications

Research suggests that forced migration may lead to cultural stress and psychological distress. However, little is known about immigrant parents' pre- and post-migration concerns for their children's welfare. The present study examined the concerns of Venezuelan parents who migrated to the United States versus those who migrated to Colombia, and whether post-migration concerns were related to cultural stressors, mental health, and cultural identity. A sample of 609 Venezuelan immigrants completed surveys and responded to an open-ended prompt asking about pre- and post-migration concerns for children's welfare. Lack of safety was the most common pre-migration concern for Venezuelans in the U.S., …


Joint Problem-Solving Orientation, Mutual Value Recognition, And Performance In Fluid Teamwork Environments, Michaela Kerrissey, Zhanna Novikov Jan 2024

Joint Problem-Solving Orientation, Mutual Value Recognition, And Performance In Fluid Teamwork Environments, Michaela Kerrissey, Zhanna Novikov

Faculty, Staff and Student Publications

INTRODUCTION: Joint problem-solving orientation (JPS) has been identified as a factor that promotes performance in fluid teamwork, but research on this factor remains nascent. This study pushes the frontier of understanding about JPS in fluid teamwork environments by applying the concept to within-organization work and exploring its relationships with performance, mutual value recognition (MVR), and expertise variety (EV).

METHODS: This is a longitudinal, survey-based field study within a large United States healthcare organization

RESULTS: Our results affirm a moderated mediation model wherein JPS enhances performance, both directly and through MVR; EV serves as a moderator in the JPS-MVR relationship. JPS …


Beside Marriage Equality: Conversations On Supriyo, Danish Sheikh, Rupali Samuel Jan 2024

Beside Marriage Equality: Conversations On Supriyo, Danish Sheikh, Rupali Samuel

Socio-Legal Review

This case comment takes the form of an epistolary exchange between the authors as they reflect on the Indian Supreme Court’s 2023 judgment in Supriyo @ Supriya Chakraborty & Anr v Union of India, which denied the existence of a constitutional right to marriage and deferred the responsibility of legalising same-sex marriage to the legislature. Through a staged conversation, the comment explores personal subject positions, legal frameworks, and the intricate entanglements of intimacy and state recognition. The authors consider how the law leaves imprints on our bodies and, in turn, how our embodied lives reshape the law through acts …


Full Issue, Socio-Legal Review Jan 2024

Full Issue, Socio-Legal Review

Socio-Legal Review

No abstract provided.


Cultivating Attentiveness To Law In India Through Legal Anthropology, Deepa Das Acevedo, Jahnavi Chamarthi Jan 2024

Cultivating Attentiveness To Law In India Through Legal Anthropology, Deepa Das Acevedo, Jahnavi Chamarthi

Socio-Legal Review

This Article reviews and analyses scholarship at the intersection of anthropology and law. The first half of the Article provides context for understanding the boundaries, animating concerns, and tensions that have characterised the anthropology of law as an area of interdisciplinary inquiry. We focus especially on the subdiscipline’s Anglo-American history and show how a promising early period of engagement dissipated as both anthropologists and legal scholars lost enthusiasm for each others’ insights and methods. Then, we expand our analysis outward. Because legal anthropology belongs within, and is increasingly attentive to, the broader field of law and society scholarship, we explore …


Locating Socio-Legal Research In Pakistan: A Reflexive Approach, Maryam S Khan Jan 2024

Locating Socio-Legal Research In Pakistan: A Reflexive Approach, Maryam S Khan

Socio-Legal Review

This article presents a detailed survey of the sites of emergence and development of socio-legal research in Pakistan, locating it on a historical arc extending from the decolonisation era to contemporary times, and organically tracing its trajectory through contextual shifts in knowledge production more broadly. As such, the article takes a reflexive approach to identifying and classifying the socio-legal that eschews pre-existing benchmarks of what constitutes the field globally. In so doing, it makes the central argument that the meaning and evolution of “socio” in socio-legal is contingent on social and historical context. The article begins with a broad Pakistan-India …


Optimizing Microbe-Infected Mosquito Release: A Stochastic Model For Malaria Prevention, Steeven Belvinos Affognon, Henri E.Z. Tonnang, Philip Ngare, Benard Kipchumba Kiplangat, Shirley Abelman, Jeremy K. Herren Jan 2024

Optimizing Microbe-Infected Mosquito Release: A Stochastic Model For Malaria Prevention, Steeven Belvinos Affognon, Henri E.Z. Tonnang, Philip Ngare, Benard Kipchumba Kiplangat, Shirley Abelman, Jeremy K. Herren

All Peer-Reviewed Publications

Malaria remains a critical public health challenge in Africa, demanding innovative control strategies. This study introduces a novel approach using Microsporidia MB-infected mosquitoes and stochastic optimal control within a Lévy process framework to regulate mosquito release strategies. The primary goal is to optimize Microsporidia MB prevalence within mosquito populations to disrupt Plasmodium transmission to humans. By incorporating Lévy noise into the modeling process, we capture the inherent randomness of mosquito dynamics, improving intervention accuracy. The model, guided by the Hamilton–Jacobi–Bellman (HJB) equation, optimizes release protocols while accounting for key environmental factors like seasonality and temperature fluctuations. Results show that intervention …


A Single-Centre Registry In Impella-Supported High-Risk Percutaneous Coronary Intervention — Our 5 Year Experience, Karen Pui Shan Shek, Jonathan Gabriel Sung, Ling Ling Ip, Ho Lam, Ping Wa Yam Jan 2024

A Single-Centre Registry In Impella-Supported High-Risk Percutaneous Coronary Intervention — Our 5 Year Experience, Karen Pui Shan Shek, Jonathan Gabriel Sung, Ling Ling Ip, Ho Lam, Ping Wa Yam

Journal of the Hong Kong College of Cardiology

Background

Complex, high-risk and indicated PCI with impaired left ventricular function remains a challenge. The Impella device offers hemodynamic support during HR-PCI to maintain organ perfusion. There are trials and registries on experience with Caucasians. However, Asian data have been limited.

Methods

In this single-centre, retrospective and observational registry, 38 patients underwent elective or urgent HR-PCI with the Impella® CP between June 2018 and June 2023 in Tuen Mun Hospital. Primary feasibility end points were successful device implantation, freedom from unstable ventricular arrhythmia and cardiac arrest. Primary safety end points were 30-day mortality and MACCE. Secondary safety end points were …


Screening For Thoracic Aortic Aneurysm, Ray Tw Lum, Jacky Yk Ho, Simon Cy Chow, Takuya Fujikawa, Randolph Hl Wong Jan 2024

Screening For Thoracic Aortic Aneurysm, Ray Tw Lum, Jacky Yk Ho, Simon Cy Chow, Takuya Fujikawa, Randolph Hl Wong

Journal of the Hong Kong College of Cardiology

Thoracic aortic aneurysm (TAA) is a silent disease with indolent progression, but it is potentially lethal once its complication with acute aortic syndrome occurred. Hypertension, smoking and atherosclerosis had all along been recognized as the major risk factors for the etiology of TAA. However, with the advancement in genomic technology, we have gained a better understanding on the contribution of the hereditary components in the genetically triggered thoracic aortic aneurysm and dissection (GTAAD). From the literature, around 20% of patients with thoracic aortic aneurysm and dissection (TAAD) have a positive family history. Therefore, if these atrisk patients can be identified …


Traumatic Tricuspid Regurgitation And Right Coronary Artery Dissection, Kan Chung Yan Joyce, Wong Chun Kit Martin Jan 2024

Traumatic Tricuspid Regurgitation And Right Coronary Artery Dissection, Kan Chung Yan Joyce, Wong Chun Kit Martin

Journal of the Hong Kong College of Cardiology

Traumatic tricuspid valve regurgitation and coronary artery dissection are rare complications of blunt chest trauma. We report a case of acute severe traumatic tricuspid valve regurgitation and right coronary artery dissection in a young male patient with unremarkable medical history after a road traffic accident.


A Sequential Explanatory Mixed-Methods Study Of Fundraisers’ Self-Disclosure In Major Gift Fundraising Relationships, Deanna Nelson Jan 2024

A Sequential Explanatory Mixed-Methods Study Of Fundraisers’ Self-Disclosure In Major Gift Fundraising Relationships, Deanna Nelson

Plymouth Business School Theses

Name: Deanna Nelson Title: A Sequential Explanatory Mixed-Methods Study of Fundraisers’ Self-Disclosure in U.S. Major Gift Fundraising Relationships This study explores the role of fundraisers’ self-disclosure in major gift fundraising relationships. Building relationships with major donors to secure major gifts is a primary concern for leaders of non-profit organisations (Buteau et al., 2019) because major gifts can have a transformational impact on an organisation’s work. However, the existing literature demonstrates that interpersonal aspects of relationship development, such as utilising self-disclosure to establish and strengthen relationships, have not been sufficiently researched in the literature. Social penetration theory (Altman & Taylor, 1973), …


The Influence Of Marketing On Students' Choice Of Private Higher Education Institutes, Evangelos Vantzos Jan 2024

The Influence Of Marketing On Students' Choice Of Private Higher Education Institutes, Evangelos Vantzos

Plymouth Business School Theses

This thesis investigates the influence of marketing on students' choice of private higher education institutes (PHEIs). It critically examines the factors influencing students' decision to study at UK Higher Education Institutions (HEIs), which offer overseas tourism and hospitality (T&H) programmes and assesses the implications of these factors for the design of marketing strategies of UK HEIs. A survey strategy was selected to support this thesis. 401 valid questionnaires were collected and analysed using the Social Science Statistics Package (SPSS) from international students enrolled in transnational T&H undergraduate programmes at five PHEIs in Switzerland and Singapore. The study results reveal that …


Entrepreneurship Intentions: The Case Of Saudi University Students. , Yasser Aldwish Jan 2024

Entrepreneurship Intentions: The Case Of Saudi University Students. , Yasser Aldwish

Plymouth Business School Theses

Research in the area of entrepreneurship and its potential contributions to economic growth and employment has grown a significant momentum and has now become a matter of utmost concern for a large number of academicians and policy-makers. Despite the recent emergence of an immense quantity of research outputs in entrepreneurship in developing economies, there are still several areas which need to be explored and evaluated. In particular, due to financial constraints and general resource limitations, entrepreneurial spirit has not yet fully developed and nurtured in most developing economies. In the case of Saudi Arabia, financing potential entrepreneurs has not necessarily …


Poldarking The Past: Contested Heritage, Tourism And Identity In Post-Mining Cornwall, Alexander Rowe Jan 2024

Poldarking The Past: Contested Heritage, Tourism And Identity In Post-Mining Cornwall, Alexander Rowe

Plymouth Business School Theses

This thesis aimed to examine representations of Cornish identity and Poldark at heritage sites in Cornwall and how the local communities responded to these fictionalised representations. This thesis adopted an interpretivist qualitative approach. In total, 37 semi-structured interviews were conducted with local residents, heritage professionals and other associated tourism stakeholders. A further 21 online interviews were conducted with tourists. These interviews were triangulated with a range of documentary sources. Data collected from the interviews and documentary sources were analysed using a thematic analysis framework.An original contribution of the thesis was the conceptualisation of ‘imaginative heritage dissonance’ which combines the notions …


Tourist Perceived Destination Innovativeness (Tpdi) And Its Impacts On Tourist Experience And Tourist Satisfaction -The Case Study Of Hunan (China), Xiaoshan Yang Jan 2024

Tourist Perceived Destination Innovativeness (Tpdi) And Its Impacts On Tourist Experience And Tourist Satisfaction -The Case Study Of Hunan (China), Xiaoshan Yang

Plymouth Business School Theses

The primary purpose of this study is to develop a comprehensive understanding of tourist perceived destination innovativeness (TPDI) and to assess its impacts on tourist experience and satisfaction, and the thesis accordingly develops a multidimensional scale for measuring the concept of destination innovativeness. TPDI in this study refers to the willingness and capability of a destination to provide and deliver unique, interesting service and product. The development and validation of the multidimensional scale for the concept followed a rigorous procedure with three different stages of study, the data for which was collected from tourists in Hunan. The first stage analysed …


How Do Followers Experience Shared Leadership As A Lived Experience?Understanding The Relationality, Processes And Practices Informing Such Collaboration., Sybille Erika Schiffmann Jan 2024

How Do Followers Experience Shared Leadership As A Lived Experience?Understanding The Relationality, Processes And Practices Informing Such Collaboration., Sybille Erika Schiffmann

Plymouth Business School Theses

How do followers experience shared leadership as a lived experience? Understanding the relationality, processes and practices informing such collaboration. Within shared leadership research culture, the aspiration is to explore “leadership as a dynamic interactive influence process”’ at the group level, supporting goal achievement (Pearce and Conger, 2003, P.1). However, the motivation of much research has focused on performance improvement, whereby discrete leadership variables are examined, using reductionist methods, to determine relevant linkages to team effectiveness (Denis et al., 2012. See also Fairhurst et.al, 2020). In expanding understanding of shared leadership from a follower perspective, enabling a fuller appreciation of how …


Immunomodulatory Activity Of Different Polyphenolic Compounds Isolated From Origanum Majorana, Doaa G. El-Hosari, Nermine M. Mohammd, Mohamed F. Barghash, Mohamed I. S. Abdelhady, Reham R. Ibrahim Jan 2024

Immunomodulatory Activity Of Different Polyphenolic Compounds Isolated From Origanum Majorana, Doaa G. El-Hosari, Nermine M. Mohammd, Mohamed F. Barghash, Mohamed I. S. Abdelhady, Reham R. Ibrahim

Trends in advanced sciences and technology

Growing in many Mediterranean nations since antiquity, Origanum majorana L. is an aromatic herb that gained popularity as a spice and medicinal plant during the Middle Ages. Although O. majorana possesses a wide range of pharmacological effects, its immunoreactive components and mechanisms remain unknown. In this study, six compounds were isolated and identified from O. majorana. The isolated compounds were identified on the basis of acid hydrolysis, comparative PC, UV, ESI-MS, 1H- and 13C-NMR spectroscopic analysis and comparing with authentics and previous reported data. The compounds were identified as Cinnamic acid, Gallic acid, Caffeic acid, PCoumaric acid, Apigenin and Luteolin. …


Co-Firing Of Lpg And Diesel Fuels Through An Innovative Double Swirl Burner: Combustion Characteristics And Exhaust Emissions, Eslam O. Mater, Karim M. Soliman, A. Abdulnaim, Ahmed Abdelrazik Emara, Ahmed Salah Elsahy, Hany A. Moneib Jan 2024

Co-Firing Of Lpg And Diesel Fuels Through An Innovative Double Swirl Burner: Combustion Characteristics And Exhaust Emissions, Eslam O. Mater, Karim M. Soliman, A. Abdulnaim, Ahmed Abdelrazik Emara, Ahmed Salah Elsahy, Hany A. Moneib

Trends in advanced sciences and technology

The current stringent environmental regulations, the depletion of fossil fuels and the emergence of oil biofuels and synthetic gases had motivated combustion scientists to search for alternative technologies that meet efficient burning, flexible use of multiple fuels and conform to a clean environment. In that respect, several developments had emerged including, low swirl combustion for partially premixed mixtures, “Mild” combustion for diffusion flames. The present experimental study introduces a new concept that combines separate admissions of fuel and air with a central recirculation zone following the diffusion combustion mode, partial premixing within a premix chamber resulting in the creation of …


Air Jet Assisted Combustion Of Oil Diffusion Flames: Effects Of Injection Location And Excess Air Factor, Moustafa Ahmed Gamaleldin, Neama Youssef Ramadan, Ahmed Mohamed Abdulnaim, Ahmed Abdelnasser Adam, Ahmed Abdulrazik Emara, Hany Ahmed Moneib Jan 2024

Air Jet Assisted Combustion Of Oil Diffusion Flames: Effects Of Injection Location And Excess Air Factor, Moustafa Ahmed Gamaleldin, Neama Youssef Ramadan, Ahmed Mohamed Abdulnaim, Ahmed Abdelnasser Adam, Ahmed Abdulrazik Emara, Hany Ahmed Moneib

Trends in advanced sciences and technology

This study investigates a novel methodology for a coaxial disc stabilized burner with a central jet oil spray. It introduces multiple air injection jets within the burner gun's exit section, promoting earlier fuel vaporization and rapid fuel-air mixture formation in the premixing zone. This directly contributes to improved overall combustion efficiency and reduced exhaust emissions. The focus lies on identifying the optimal location for the air injection jets (fixed load, constant jet momentum, and angle) within the exiting premixing zone of the burner gun. In-flame measurements are conducted inside a cylindrical combustor at different air injection locations and varying excess …


Integration Of 3d Structural Modelling And Well Logging Analysis In The Evaluation Of October Oil Field, Gulf Of Suez, Egypt, Lamiaa Yahia, Mostafa Toni, Farouk I. Metwalli, M. H. Mansour, Amir Ismail Jan 2024

Integration Of 3d Structural Modelling And Well Logging Analysis In The Evaluation Of October Oil Field, Gulf Of Suez, Egypt, Lamiaa Yahia, Mostafa Toni, Farouk I. Metwalli, M. H. Mansour, Amir Ismail

Trends in advanced sciences and technology

An extensive study of the NUBIA and MAT reservoirs, incorporating numerous data sources, enhances the accuracy of production forecasts for hydrocarbon exploration and development. This study aims to integrate seismic and well data for re-assessment and to delineate the geological and petrophysical characteristics of the October oil field which is one of the most productive in the central Gulf of Suez, but it has recently witnessed a drop in output in some regions, and some wells have begun to depletion. While facies modeling enabled the spatial distribution of lithologic facies inside the constructed 3D structural model, which reflected two types …


Evaluation Of The Diagnostic Performance Of Nucleocapsid Antigen For Severe Acute Respiratory Syndrome Coronavirus 2 Infection, Doaa Fathy Ahmed, Amal Ahmed Mohamed, Manar S. Fouda, Sara A. Mekkawy, Randa Ibrahim Ahmed, Omar Mohamoud Azzam, Doaa Ghaith, Ahmed El-Kasses, Mostafa Omran Jan 2024

Evaluation Of The Diagnostic Performance Of Nucleocapsid Antigen For Severe Acute Respiratory Syndrome Coronavirus 2 Infection, Doaa Fathy Ahmed, Amal Ahmed Mohamed, Manar S. Fouda, Sara A. Mekkawy, Randa Ibrahim Ahmed, Omar Mohamoud Azzam, Doaa Ghaith, Ahmed El-Kasses, Mostafa Omran

Trends in advanced sciences and technology

Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-COV-2) was identified as the aetiological agent of coronavirus disease 2019 (COVID-19). The SARS-COV-2 genome encodes four structural proteins include spike (S) protein, envelope (E) protein, membrane (M) protein, and nucleocapsid (N) protein. nucleocapsid protein is one of the predominantly expressed structural proteins and has been confirmed as an ideal target for early diagnostic detection in SARS-COV-2 infection. In the current study, the diagnostic performance of Nucleocapsid antigen in severe acute respiratory syndrome Coronavirus 2 infected individuals is evaluated in Egypt. Patients and Methods: All human individuals’ samples (n= 106) were collected from El …


Producing Self-Healing Asphalt Pavement Mixture Using Induction And Microwave Heating, Ahmed Abdelghani Mahmoud, Catherine Gamil Shafik, Mohamed R. Elshahat, Abdelzaher E. A. Mostafa Jan 2024

Producing Self-Healing Asphalt Pavement Mixture Using Induction And Microwave Heating, Ahmed Abdelghani Mahmoud, Catherine Gamil Shafik, Mohamed R. Elshahat, Abdelzaher E. A. Mostafa

Trends in advanced sciences and technology

Asphalt pavement is a common type of road construction worldwide. It provides excellent performance in terms of comfort, durability, and water resistance. Asphalt pavement roads are susceptible to different types of pavement distresses, which affects its service life. Additionally, excessive utilization of non-renewable materials and massive construction waste has a negative environmental impact. On the other hand, asphalt pavements' self-healing techniques decrease the need for frequent maintenance and repairs of cracks, making them more sustainable over time. Therefore, this paper aims to produce a sustainable asphalt pavement mixture, reduce maintenance costs, reduce the use of natural materials for road maintenance, …


Solvability Of Self Reference Functional Integro-Differential Equation With Nonlocal Initial Condition, A.A. Darwish, M.A. Seddeek, Reda Gamal Ahmed, Ahmed A. El-Deeb, Moataz Ashraf Mohamed, Hossam A. Ghany Jan 2024

Solvability Of Self Reference Functional Integro-Differential Equation With Nonlocal Initial Condition, A.A. Darwish, M.A. Seddeek, Reda Gamal Ahmed, Ahmed A. El-Deeb, Moataz Ashraf Mohamed, Hossam A. Ghany

Trends in advanced sciences and technology

We present in this paper a new type of self-reference functional integro-differential equation with a nonlocal initial condition. Also, we present a nonlocal problem of the functional integro-differential equation with the infinite point boundary condition for more generalization. An integral representation equivalent to the functional integro-differential equation is obtained to use the theorems needed for proving the existence, and uniqueness. Then we prove the continuous dependence of the solution on the nonlocal parameter and the initial data of the equation. To prove the existence of the solution of the equation we present the Schauder fixed point theorem for both finite …