Digital Commons Network^™

Optimal Sizing Of Pv Water Pumping System For Off-Grid Rural Communities, Basma Abulkheir, Eid Gouda, A. A. Hegazi, Amir Abdel Menaem

Mansoura Engineering Journal

A large population worldwide lives in remote rural communities without access to electricity due to the limited reach of national transmission networks. This creates significant challenges in accessing water, hindering improvements in living conditions for off-grid communities. Photovoltaic water pumping systems (PVWPSs) offer a viable solution to this issue, but their sustainability must be examined due to the unpredictable nature of solar radiation. This paper presents a practical techno-economic approach to optimally size a PVWPS. A Particle Swarm Optimization (PSO) algorithm is employed, considering technical and economic indicators like life cycle cost, loss of load probability and PV curtailment rate. …

Efficient Task Allocation Technique For Robots In Smart Warehouse Using Center Of Items (Coi) Methodology, ‪Ahmed Yahya‬‏, Mohamed S. Saraya, Ahmed I. Saleh

Mansoura Engineering Journal

Nowadays, online shopping is very important in Daily life. in 2020 During the quarantine during the spread of COVID-19, online orders increased dramatically, as a result of the great progress in fifth-generation technologies and using the Internet of Things (IoT) and industrial Internet of Things (IIoT), industry 4.0 and 5.0, fog computing, cloud computing, robots systems, and drones systems. Smart warehouses picking system becomes a Basic need and can be implemented to improve efficiency in logistics. Smart warehouses are growing more dependent on robot systems to make the process of meeting these requests more flexible and effective. Therefore, the allocation …

Full Call Auction And Market Liquidity: Lessons From Idx, Columbanus Teto, Zaäfri Ananto Husodo

Jurnal Akuntansi dan Keuangan Indonesia

Background: This study investigates the impact of the Full Call Auction mechanism implemented by the Indonesia Stock Exchange in 2024 on stocks listed under the Special Monitoring Board. The research aims to evaluate how the FCA affects market liquidity, particularly bid-ask spreads and trading volume, within the financial sector stocks. Methods: Employing a heterogeneous Difference-in-Differences approach, the analysis compares stock-level liquidity indicators before and after the FCA implementation. Findings: While overall treatment effects appear statistically insignificant, subgroup analysis reveals that stocks with longer exposure to the FCA exhibit significantly wider bid-ask spread and persistent reductions in trading volume. These findings …

Beyond Numbers: Decoding The Dynamics Of Qualitative Accounting Research Across Decades, Triana Eva Adiningsih

Jurnal Akuntansi dan Keuangan Indonesia

Background: This study examines the realm of qualitative research in accounting, highlighting its evolving methodologies and thematic emphasis. There has been increasing interest in qualitative methodologies, such as literature reviews, SLRs, archival research, bibliometric studies, and interviews, to explore the complex nature of accounting practices. Methods: This study identifies the principal themes, trends, and prominent authors in qualitative accounting research through a systematic approach that incorporates bibliometric analysis using VOSviewer and a thorough assessment of Scopus-indexed journals. Findings: The findings highlight significant themes, including sustainability, technology, governance, and the impact of global occurrences, such as the COVID-19 pandemic, on accounting …

Green Bonds As A Green Investment To Prevent Greenwashing And Green Financial Crime In Indonesia, Cita Yustisia Serfiyani

Indonesia Law Review

Overcoming the climate crisis should not only be pursued from the aspect of technological invention but also from the financial aspect through issuing securities instruments that align with the green economy mission. Unfortunately, irresponsible parties such as corporations still use the green economy concept for personal gain through greenwashing and green financial crime. The presence of green bonds as green instruments shows a positive trend towards improving the quality of environmentally friendly technological innovations, building green infrastructure, and increasing income in line with increasing public participation in climate issues. However, its application in Indonesia is constrained by the complexity of …

Reconstruction Of Competition Law: Preventing Monopolization Through Data Exploitation In E-Commerce, Diana Fitriana

Indonesia Law Review

Tujuan penelitian ini adalah menganalisis nilai big data dan implikasinya terhadap monopoli usaha, mengkaji perbandingan hukum persaingan usaha dan mengkaji kelemahan hukum persaingan usaha Indonesia, serta menganalisis rekonstruksi hukum Undang-Undang Larangan Monopoli dan Persaingan Usaha Tidak Sehat di masa mendatang. Penelitian ini menggunakan penelitian yuridis normatif (doktrinal) dengan pendekatan perundang-undangan dan konseptual dengan teknik pengumpulan data melalui kajian pustaka, analisis isi, dan studi kasus. Data tersebut kemudian dianalisis secara kualitatif untuk menghasilkan informasi yang komprehensif dan menarik simpulan yang relevan. Big data memiliki kapasitas untuk memicu perilaku monopoli karena mencerminkan permintaan pasar konsumen. Namun, regulasi persaingan di Indonesia kurang dalam …

The Indonesian Guardianship And Indonesian Private International Law, Tiurma Mangihut Pitta Allagan, Dinda R. Himmah, Amirah Hisana

Indonesia Law Review

The increasing of number of cross-border legal relationships, especially family legal relationships, is inevitable. For instance, it is also commonly accepted for a foreign national to have a legal-bond with children from another country, which is also known as intercountry adoption, guardianship and fostership. This paper aims to analyze and classify guardianship involving international dimension within the jurisdiction of Indonesia. The examination of this legal question would be on the basis of Indonesian Private International Law (PIL). The choice of law and the choice of jurisdiction are the basic analysis, further, as to whether the guardianships are in line with …

Antibacterial Effect Of Moringa Oleifera Extract, Chitosan, And Calcium Hydroxide Against Porphyromonas Gingivalis: A Preliminary In Vitro Study, Adilah Zf. Djerman, Muhammad F. Sabirin, Erna A. Sutanto, Nisrina E. Nasrun, Maria Tanumiharja

Journal of Dentomaxillofacial Science

Objective: Given the role of Porphyromonas gingivalis in pulp inflammation and the potential of natural agents to enhance conventional medicaments, this study aimed to investigate the antibacterial activity of Moringa oleifera extract and chitosan, in combination with calcium hydroxide [Ca(OH)₂], against P. gingivalis

Material and Methods: The laboratory experiment used 12 groups with three replicates (36 samples in total). The groups included: (1) Moringa oleifera with Ca(OH)₂, (2) chitosan with Ca(OH)₂, and (3) M. oleifera, chitosan, and Ca(OH)₂ mixture. Each group had four subgroups: Ca(OH)₂ control and concentration ratios of 1:1, 1.5:1, and 2:1. Antibacterial activity was measured via disc …

Embryonal Rhabdomyosarcoma Of The Buccal Region In A Pediatric Patient: A Case Report And Review Of The Literature, Nadirah R. Ridha, Wa O. Kasriyanti, Sulmiati, Imeldy P. Purnama

Journal of Dentomaxillofacial Science

Introduction: Rhabdomyosarcoma (RMS) is the most common pediatric soft tissue sarcoma, often affecting the head and neck. This report presents a rare case of embryonal RMS in the buccal region, emphasizing diagnostic and therapeutic challenges.

Case Report: A 5-year-old boy presented with swelling in the left buccal region. Clinical examination revealed a firm mass. CT scan showed a heterogeneous lesion with necrosis, extending into adjacent spaces. Histopathology revealed spindle-shaped pleomorphic cells, and immunohistochemistry was positive for Desmin and Vimentin. The patient received six cycles of vincristine, adriamycin, and cyclophosphamide (VAC regimen), followed by radiotherapy. The tumor regressed completely with no …

Schilder Technique For Vertucci Type Ii Configuration In Maxillary First Molar: A Case Report, Endo Sadewa, Afniati Rachmuddin

Journal of Dentomaxillofacial Science

Abstract

Introduction: This case report describes the endodontic management of a maxillary first molar with a Vertucci type II canal configuration, an anatomical complexity that increases the risk of procedural errors and treatment failure, utilizing the Schilder technique to achieve a complete, hermetic seal.

Case Report: A 29-year-old female patient presented at the Hasanuddin University Dental Hospital with a dislodged filling and pain in the right maxillary first molar (tooth #16). Clinical examination revealed a deep occlusal carious lesion. Periapical radiography showed pulpal radiolucency with no periapical abnormalities and revealed a root canal system consistent with Vertucci type II classification. …

Post–Tooth Extraction Supportive Therapy With Limosilactobacillus Reuteri Probiotic And Hyaluronic Acid Gel Combination On Collagen Density, Desak Mh. Wijayanti, Armelia S. Widyarman, Melanie H. Sadono, Firstine K. Hartanto, Komariah, Wiwiek Poedjiastuti

Journal of Dentomaxillofacial Science

Objective: Tooth extraction is a common medical procedure that can be classified classified as simple or complex, depending on the condition of the tooth. Supportive therapies are being explored to  accelerate wound healing after tooth extraction. Hyaluronic Acid (HA) and Limosilactobacillus reuteri (L. reuteri) are known to have positive effects on overall body and oral health. This study aimed to analyze the differences in collagen density during wound healing process after tooth extraction with the administration of supportive therapy by combining HA and probiotic L. reuteri in Wistar rats (Rattus norvegicus).

Material and Methods: Collagen density …

Combined Effects Of Physical Activity And Uv-B Light On Bdnf In Brain And Oral Function: A Wistar Rat Model Study, Zahreni Hamzah, Tantin Ermawati, I-Dar. Dewanti, Sari Setyaningsih, Yohana M. Penga, Julia Yp. Ariyo

Journal of Dentomaxillofacial Science

Objective: To evaluate the combination effects of physical activity (structured training) and UV-B exposure on serum brain-derived neurotrophic factor (BDNF) levels and assess their association with oral health and cognitive function.
Materials and methods: This study utilized male Wistar rats (3-4 months old, average body weight 250-350 g). The rats were divided into three groups: (K) control group and (P) exercise groups with or without ultraviolet B (UV-B) exposure. The exercise-treated groups underwent treadmill running for 30 minutes per session, divided into three sessions. Following the intervention, the rats were euthanized, and intracardiac blood samples (5 mL serum per rat) …

The Influence Of Parenting Style On The Severity Of Early Childhood Caries In School-Aged Children In Bintaro Village, South Jakarta, Roosje R. Oewen, Witriana Latifa, Tri Damayanti, Marhamah

Journal of Dentomaxillofacial Science

Background: Early Childhood Caries affects the quality of life of children and is still a problem in Indonesia. Early Childhood Caries (ECC) is strongly connected to parenting style (PS), which is how parents guide their kids and help them develop their character. There are three parenting styles: authoritative, authoritarian, and permissive. Purpose: The impact of PS on the severity of ECC. Methods: 30 students from South Jakarta's Tat Twam Asi Kindergarten and Kalpataru Kindergarten were selected through purposive sampling for this analytical observational study using a cross-sectional design. Collection of ECC data utilizing the def-t index by intraoral examination and …

Rheological Characterisation Of An Optimised Epoxy–Pdadmac Integrated Chemical System For Sand Consolidation, Afif Izwan Abd Hamid, Ismail Mohd Saaid, Nur Asyraf Md Akhir, Latief Riyanto

Platform: A Journal of Engineering

Excessive sand production poses a persistent challenge to the integrity and productivity of oil and gas wells. Previous work demonstrated the effectiveness of an integrated chemical formulation in improving sand consolidation through optimised gelation time, compressive strength, and clay swelling control. The optimised integrated formulation consisted of an epoxy-to-hardener ratio of 2.5:1, 10 wt.% loading of a 3 wt.% aqueous poly(diallyldimethylammonium chloride) (PDADMAC) solution as the clay inhibitor, and 29.55 wt.% xylene. Thus, this study extends the investigation to the rheological behaviour of the optimised formulation, focusing on its injectability, flow properties, and gelation kinetics under reservoir-like conditions. Time-sweep analysis …

Cost-Benefit Analysis Of Seismic Retrofitting Methods For Irregular Rc Buildings, Wu Ye, Nabilah Abu Bakar

Platform: A Journal of Engineering

Many existing reinforced concrete (RC) buildings were constructed without considering seismic design, resulting in inadequate earthquake resistance. Irregular RC buildings, with their stiffness inconsistency, soft-story conditions, and plan asymmetries, are particularly vulnerable to seismic forces, often experiencing significant inter-story drifts and torsional effects. Addressing the critical need for cost-effective seismic retrofitting of irregular RC buildings in regions with high seismicity and limited resources, this study proposes a cost-benefit analysis framework to evaluate different retrofitting methods, namely RC jacketing, steel bracing, and a combination of both. A three-story, irregular RC building constructed before 1980 was selected as the case study. Both …

Gender Representation In Automotive Safety: The Role Of Female Crash Test Dummies, Gökçe Hilal Yavuz, Emre Arabaci, Ajab Khan Kasi

Platform: A Journal of Engineering

Vehicle testing is conducted to evaluate safety, durability, environmental compliance, and performance. Various tests, such as crash, performance, durability, environmental impact, and chemical safety, are conducted to ensure that vehicles meet regulatory and quality standards. In crash testing, anthropomorphic test devices (ATDs), commonly referred to as dummies, are used to simulate the effects of collisions on the human body and to assess injury risks. These dummies differ in terms of gender representation and design; for example, the Hybrid III model represents an average male, EvaRID represents a female, and WorldSID is used for side-impact evaluations. Anatomical and biomechanical differences between …

A Hybrid Reliability Framework For Spare Part Optimisation Under Uncertainty Of Marine Vessel Systems, Ahmad Fauzi Sagap, Ainul Akmar Mokhtar

Platform: A Journal of Engineering

Effective spare part management relies heavily on accurate reliability assessment. However, in new or complex systems, historical failure data are often limited, making traditional probabilistic reliability models inadequate. This paper proposes a hybrid reliability framework that integrates conventional reliability theory with fuzzy logic to address both aleatory (random)and epistemic (lack of knowledge) uncertainties. The approach combines crisp failure rate estimation using exponential distributions with fuzzy reliability modelling using the triangular fuzzy number (TFN) methodology and fuzzy logic to support dynamic decision-making for a maintenance plan. The degree of membership functions is derived from the TFN and provides the operator with …

Computer Applications In Electrical Engineering: Recent Trends, Future Requirements, And An Educational Review, Hemant Mehar

Platform: A Journal of Engineering

The integration of programming languages into electrical engineering has become increasingly pivotal as the field evolves with technological advancements. This paper explores recent trends in the application of programming languages in electrical engineering, emphasising how they enhance design, simulation, and automation. The main focus is on the use of high-level programming languages for modelling and simulation, and on various algorithm-based ML approaches for optimisation. Additionally, the paper examines future requirements for programming skills in electrical engineering, highlighting the need for continuous adaptation to emerging technologies and interdisciplinary approaches. An educational review is provided to assess current curricula and suggest improvements, …

Examination Of Triple-Pass V-Groove And Parallel-Pass V-Groove, And Finned Absorber Plates Solar Air Heater: A Numerical Study, Arafat Esam Abdullah Abdulmajeed, Afşin Güngör

Platform: A Journal of Engineering

```python text = """The adoption of solar energy and associated large-scale projects is on the rise to address the escalating global energy demand, owing to their cost-effectiveness, environmental friendliness, and status as clean energy sources. The primary objective of the present study is to investigate the performance of parallel-pass solar air heaters (SAHs) equipped with grooved and finned absorbers, as well as the performance of a triple-pass SAH with a grooved absorber plate, through numerical modelling. The absorber in the finned SAH had longitudinal fins on both the top and bottom surfaces. The heat and fluid properties of a parallel-pass …

Cfd Modeling Of A 120 Kwth Chemical Looping Combustion System, Tabasat Ahmad, Fazl E Rabi, Muhammad Zaman, Atta Ullah

Platform: A Journal of Engineering

```python text = """Chemical looping combustion (CLC) has evolved as a promising technique for carbon capture. In view of the above, a computational fluid dynamics (CFD) study of the existing 120 kWth circulating fluidised bed (CFB) has been carried out. The fuel used in the existing reactor is CH4, and NiO supported by Al2O3 particles is employed as the oxygen carrier. Transient Two-dimensional CFD simulations have been conducted for the DCFB–CLC system. Eulerian –Eulerian method with heterogeneous reaction kinetics has been applied. The CFD simulation yielded results comparable to those obtained from the experimental data. The same approach was then …

Social Construction Of Female-Headed Households Participating In Hud Public Housing Programs, Emma Forks

Walden Dissertations and Doctoral Studies

The problem this study addressed involved factors associated with long-term program involvement of female-headed households living in public and vouchered housing. The literature indicated a significant gap regarding the reasons women who received federal housing assistance stayed in government housing. The purpose of this generic qualitative study was to examine the experiences of female-headed households living in public housing and Housing Choice Voucher (HCV) housing in a Central Texas region, specifically to identify the factors that limited their ability to leave these programs. Using Schneider and Ingram’s social construction of target populations theory, the data was collected from eight participants …

Associations Between Health-Seeking Behaviors And Social Support For Adult Black Women In The United States, Patricia Saint Cyr-Hager

Walden Dissertations and Doctoral Studies

A persistent gap exists involving health outcomes for Black women in the United States, regardless of socioeconomic status when compared to Black men and White women. This qualitative case study involved exploring the influence of social support on health-seeking behaviors among Black women. Sixteen participants, between ages 22 to 49 from nine states, were recruited. Data was collected using semi-structured interviews based on the social support theory. An analysis of the network composition showed that family members (including mothers, fathers, sisters, and partners), friends, community support groups not connected to social media, and online community support groups were the most …

The Association Between E-Cigarette Use And Community Mattering Among Adolescents In Maine, April Hughes

Walden Dissertations and Doctoral Studies

E-cigarette use among U.S. high school students is a significant public health issue. Factors such as mattering, sexual orientation, and gender identity (SOGI) influence e-cigarette use among adolescents, yet few studies have explored the relationship between mattering and e-cigarette use when considering SOGI. This quantitative study explored the association between past 30-day e-cigarette use and mattering among Maine high schoolers while controlling for SOGI and grade level. This correlational cross-sectional study used the 2023 Maine Integrated Youth Health Survey data, and the socioecological model served as the theoretical foundation. A multivariate binary logistic regression analysis indicated a significant association between …

Gender Differences In Japanese Elderly Learning Motivation, Yesy Tri Cahyani, Kurniawaty Iskandar, I Ketut Surajaya, Kosuke Mizuno, Jumanto Jumanto, Emila Ligia

Paradigma: Jurnal Kajian Budaya

Ageing is likely to become a 'gender issue' with a big number of women surviving into very old age in almost all the countries of the world. Japanese women have longer longevity than Japanese men. What is the secret behind the higher lifespan of Japanese women compared to Japanese men? Is it related to their ikigai? In this qualitative approach research, we chose the subjects as elderly men and women who participated in Easy English Conversation Courses in Kitakyushu Nenchousha Daigakkou (Kitakyushu Elder University). We assumed that to participate in Easy English Conversation Courses may change their life and …

Roblox As Open Text: Identity, Meaning, And Ideology Through Eco’S Semiotics, Yuyus Rustandi, Nanang Sutisna

Paradigma: Jurnal Kajian Budaya

This study examines Roblox as a digital cultural space that constructs and represents adolescent identity through Umberto Eco's semiotic approach. Roblox functions not only as a game platform but also as an open text comprising visual signs, social symbols, and complex narratives. This studi is based on a literature review from nine prior empirical studies, this research analyzes how avatars, virtual environments, Robux economy, and user communities shape diverse systems of meaning. Findings show that Roblox serves as a site for identity construction, simulation of social values, and reproduction of dominant discourses such as capitalism and gender performance. The study …

Ai Ethics And Governance For Leaders In Higher Education: A Hermeneutic Phenomenology Of Faculty Early Adopters’ Sensemaking, Pedagogical Innovation, And Transformation, Freddie Seba

Doctoral Dissertations

Artificial Intelligence (AI), especially Generative AI (GenAI), is transforming how we work, learn, acquire, produce, and deliver knowledge, as higher education experiences existential pressures, including demographic changes that reduce enrollment and revenues, as well as shifting public and government perceptions of higher education's value.

This hermeneutic phenomenology dissertation study explores how faculty early adopters critically engage, innovate, and experiment with this nascent transformational technology in their pedagogies amid multilevel pressures: macro—market-driven (neoliberalism) logic, Big Tech, and demographic change; meso—institutional policy, broader faculty community, and pedagogical innovation; micro—widespread student adoption, pedagogical experimentation, and innovation.

This dissertation study centers on shifting AI …

The Impact Of Pasifikas In Medicine On Pacific Islander Medical Student Experiences, Devon Hori Harvey, Micah Ngatuvai, Siale Vaitohi, Paige E. Faasuamalie, Maegan Tupinio, Lisa H. Smith

Student Papers, Posters & Projects

BACKGROUND: Pacific Islanders experience significant health disparities. One contributing aspect to these disparities is the lack of racial concordance as Pacific Islanders are underrepresented in the U.S. physician work force. Several factors contribute to this underrepresentation including lack of support systems for Pacific Islander premed and medical students. Pasifikas in Medicine (PiM) is a recently established national student organization founded to provide support for Pacific Islander premed students, medical students, residents, fellows and attending physicians. This study seeks to understand the impact of PiM on medical student experiences.

METHODS: An anonymous survey was distributed to the PiM listserv and to …

A Novel Mathematical Model Of Hiv Transmission Incorporating The Effects Of Treatment And Pre-Exposure Prophylaxis: Sensitivity Analysis And Numerical Simulations, Erick Manuel Delgado Moya

Mathematical Modelling and Numerical Simulation with Applications

Human immunodeficiency virus (HIV) continues to be a public health problem in many countries of the world, and Pre-exposure prophylaxis (PrEP) is a preventive method for HIV, which has shown great efficacy and is in use worldwide. This work presents a new mathematical model for HIV transmission incorporating PrEP use and evaluates the impact of PrEP along with its increasing use in a population. The construction of the model takes into account three forms of diagnosis: diagnosis of individuals in risky sexual contact, diagnosis after risky contact (diagnosis in the undiagnosed infected compartment), and diagnosis associated with attempting to enter …

When Delivery Matters: Diffuse Coronary Vasospasm With Continuous, But Not Bolus, 5-Fu Infusion, Muhammad Sabri, Zinya Talukder, Angad Bedi, Sung-Hae Cho

Division of Internal Medicine Faculty Papers & Presentations

5-Fluorouracil (5-FU) is a fluorinated pyrimidine chemotherapy analogue used to treat various gastrointestinal solid malignancy. It is known to be associated with cardiotoxicity. Here, we present a case of 58-year-old male with mucinous adenocarcinoma of the sigmoid colon who experienced global coronary vasospasm in setting of continuous 5-FU infusion refractory to prophylactic antianginal treatment. However, he was asymptotic when given bolus of 5-FU. Our case highlights the difference in toxicity between continuous and bolus 5-FU therapy and emphasizes the need for further research in the pathophysiology and treatment of cardiotoxicity related to 5-FU therapy.

Gas-Flux-Determination-Method Effects On Greenhouse Gas Emissions Andglobal Warming Potential From Soybean In Southeast Arkans, Jonathan B. Brye, Diego Della Lunga, Kristofor R. Brye

Crop, Soil and Environmental Sciences Faculty Publications and Presentations

Greenhouse gas (GHG) research and quantification have increased in importance recently due to climate change. Non-flow-through chamber systems collect large quantities of gas concentration data to determine the gas flux, but gas-flux-determination (GFD) methods can vary between regression models, how negative fluxes are considered, and what agroecosystem is evaluated, which makes selecting an analysis method complicated. The objective of this study was to evaluate the effects of GFD method [i.e. linear (L) and exponential (E) regression models, with negative fluxes (WNF) and with reassigned negative fluxes (RNF)] on GHG fluxes, emissions, and global warming potential (GWP) from soybean (Glycine max) …