Digital Commons Network^™

Exploring Students' Computer-Supported Collaborative Argumentation With Socio-Scientific Issues, Wenli Chen, Yiting Han, Jesmine Tan, Aileen Siew Cheng Chai, Qianru Lyu, Lyna

Research Collection Lee Kong Chian School Of Business

Background: This study examined the effect of computer-supported collaborative argumentation (CSCA) on secondary school students' understanding of socio-scientific issues (SSI). Engaging students in collaborative argumentation is known to help with deepening their understanding of SSI. Methods: In this study, a mixed-method design is used to investigate 84 students' collaborative argumentation processes and outcomes. The statistical analysis, epistemic network analysis and qualitative uptake analysis results showed that CSCA was effective in supporting secondary school students' evidence-based argumentation skills on SSI. Findings and Conclusion: Several cases were presented to show how students engaged in CSCA to explore meaningful learning opportunities and how …

Pathobiology Of Myocardial And Cardiomyocyte Injury In Ischemic Heart Disease: Perspective From Seventy Years Of Cell Injury Research, L Maximilian Buja

Faculty, Staff and Student Publications

This review presents a perspective on the pathobiology of acute myocardial infarction, a major manifestation of ischemic heart disease, and related mechanisms of ischemic and toxic cardiomyocyte injury, based on advances and insights that have accrued over the last seventy years, including my sixty years of involvement in the field as a physician-scientist-pathologist. This analysis is based on integration of my research within the broader context of research in the field. A particular focus has been on direct measurements in cardiomyocytes of electrolyte content by electron probe X-ray microanalysis (EPXMA) and Ca2+ fluxes by fura-2 microspectrofluorometry. These studies established that …

Outcomes Of Lateralized Reverse Total Shoulder Arthroplasty Versus Latissimus Dorsi Transfer For External Rotation Deficit: A Systematic Review And Meta-Analysis, Keegan M Hones, Caroline T Gutowski, Taylor R Rakauskas, Victoria E Bindi, Trevor Simcox, Jonathan O Wright, Bradley S Schoch, Thomas W Wright, Jean-David Werthel, Joseph J King, Kevin A Hao

Faculty, Staff and Student Publications

Background: To compare clinical outcomes following lateralized reverse shoulder arthroplasty (RSA) versus RSA with latissimus dorsi transfer (LDT) in patients with poor preoperative active external rotation (ER).

Methods: We performed a systematic review per Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. We queried PubMed/Medline, Embase, Web of Science, and Cochrane databases to identify articles reporting clinical outcomes of RSA with LDT or lateralized RSA alone performed in patients with preoperative ER ≤0°. Our primary outcomes were active ER, active forward elevation (FE), Constant score, and the incidence of complications.

Results: We included 12 RSA with LDT studies …

Wirelessly Actuated Microfluidic Pump And Valve For Controlled Liquid Delivery In Dental Implants, Yilan Xu, Honglu Lin, Boyang Xiao, Hutomo Tanoto, Joel Berinstein, Alend Khoshnaw, Simon Young, Yuxiao Zhou, Xiaoguang Dong

Faculty, Staff and Student Publications

Enabling minimally invasive and precise control of liquid release in dental implants is crucial for therapeutic functions such as delivering antibiotics to prevent biofilm formation, infusing stem cells to promote osseointegration, and administering other biomedicines. However, achieving controllable liquid cargo release in dental implants remains challenging due to the lack of wireless and miniaturized fluidic control mechanisms. Here wireless miniature pumps and valves that allow remote activation of liquid cargo delivery in dental implants, actuated and controlled by external magnetic fields (< 65 mT), are reported. A magnet-screw mechanism in a fluidic channel to function as a piston pump, alongside a flexible magnetic valve designed to open and close the fluidic channel, is proposed. The mechanisms are showcased by storing and releasing of liquid up to 52 µL in a dental implant. The liquid cargos are delivered directly to the implant-bone interface, a region traditionally difficult to access. On-demand liquid delivery is further showed by a metal implant inside both dental phantoms and porcine jawbones. The mechanisms are promising for controllable liquid release after implant placement with minimal invasion, paving the way for implantable devices that enable long-term and targeted delivery of therapeutic agents in various bioengineering applications.

Engineering Immunity: Bacterial Delivery Of Cancer Neoantigen Vaccines, Christopher D Johnston, Jennifer A Wargo

Faculty, Staff and Student Publications

In the battle against cancer, researchers are exploring the use of engineered bacteria as living medicines. Redenti and colleagues demonstrate that Escherichia coli Nissle 1917 (EcN) can be engineered to deliver cancer neoantigen payloads, stimulating antigen-specific CD4+ and CD8+ T cells and mediating antitumor immunity in preclinical models of colorectal cancer and melanoma.

A Practical Guide To Avoiding Biased Communication In Reproductive Biology, Zoe Baker, Virginia Hayssen

Biological Sciences: Faculty Publications

When cultural biases pervade communication, whether visual or text-based, objectivity is impaired. Anthropocentrism (human-centered bias) and androcentrism (male-centered bias) in particular distort perspectives in mammalian reproductive biology. This paper provides a resource for professionals who understand how cultural biases can be reinforced with language, visuals, and conceptual framing. After brief explanations, we present neutral alternatives to biased terminology as well as ways to avoid bias in illustrations. Since this paper is animal-centric, we hope to inspire the creation of similar resources across a more diverse biota and, thus, move towards a more neutral perspective across reproductive biology.

Socio-Ecological Drivers Of Anthropogenic Marine Debris Effects On Coral Reef Communities In The Florida Keys, Usa, Tokea Payton

All Dissertations

The Florida Keys reef tract has rapidly shifted from a structurally complex, hard coral-dominated reef to a less rugose, soft coral-dominated reef. Persistent anthropogenic stressors facilitate ecological transitions by including recreational and commercial fishing and increased anthropogenic marine debris. These artificial structures are becoming habitats for small marine taxa known as cryptofauna. Cryptofauna are among the most essential yet understudied reef taxa where little is known about their fate considering degrading coral reefs and increasing anthropogenic disturbance. With increased anthropogenic stressors on the marine environment, the SCUBA diving community has initiated extensive marine debris removal efforts to assist in cleaning …

Exploring The Contribution Of Mobile Money To The Well-Being Of Rural Tanzanian Villagers And Assessing Their Readiness To Adopt A Similar Model To Advance Their Healthcare Access An Exploratory Study, Sr. Magdalena P. Chubwa

Seton Hall University Dissertations and Theses (ETDs)

Background: Healthcare for rural villages in Tanzania has always been rudimentary. Lack of the infrastructure and poverty are among the many obstacles facing this population’s access to healthcare. While, the rise of telehealth has improved access to healthcare in many parts of the world, its use in rural Tanzania has been extremely limited to poor internet access. However, given the availability of non-internet connected mobile phones in rural Tanzania, the potential to use this devise to improve healthcare access exists. Individuals using mobile phones for financial transactions may be motivated to access healthcare via telehealth by using their non-internet connected …

Integrating Social And Ecological Insights In The Management Plan For An Emerging Conservation Landscape: Kanha-Pench Corridor, Hrishita Negi

All Dissertations

Since its inception in 1973, Project Tiger, which laid the groundwork for India's tiger conservation program, has grown from 9 to 53 intensively monitored and managed tiger reserves. With an increase in tigers' permanent occupancy outside of designated tiger reserves, one of the many challenges confronting India's tiger conservation has been managing its success, with a particular emphasis on this spillover population that ranges extensively in human-dominated, multi-use forest landscapes. This research illustrates the application of a participatory modeling approach to integrate human dimensions with ecological knowledge about tigers in a previously identified forest corridor in Central India. Key dimensions …

Genetic Testing And Anorexia Nervosa: Knowledge, Attitudes And Awareness, Sarah Ramsay

All Dissertations

This dissertation consists of three parts, each building on the results of the former, evaluating the treatment and research of anorexia nervosa (AN) from a healthcare genetics perspective. These three parts are bookended by an introduction and a conclusion summarizing key findings and providing suggestions for future work. First, in order to assess how Severe and Enduring Anorexia Nervosa (SE-AN) is defined in the literature, and inclusion of those with SE-AN in genetics research, a comprehensive literature review was performed. The review found a lack of consistent identification and inclusion of the SE-AN subtype in AN genetic study participants. Second, …

Agricultural Water Use In South Carolina - A Series Of Investigations To Support Long-Term Planning, Charles Pellett

All Dissertations

Agricultural water use in South Carolina has been the subject of some public debate. While there are several sources of information available, the accuracy of the relevant data has been called into doubt. Self-reported estimates may be biased; survey sampling and extrapolation methods yield wide ranges of uncertainty; and reporting compliance or response rate can change over time.

Agricultural water users self-report that their estimates of water use volumes are less accurate than the other major sectors of water use. Center pivot irrigation is the largest and fastest growing kind of agricultural water use in SC. Since the year 2000, …

Investigating The Role Of Cd44 In Her2+ Breast Cancer Cells During Cancer Cell Redirection, Holly Caroline Jordan Campbell

All Dissertations

Despite a rise in survival rates of breast cancer patients due to advances in modern medicine, breast cancer is the most common type of cancer in women and is the second leading cause of cancer death in the United States. Early detection and a more personalized treatment of breast cancer has slowly improved patient outcomes. Nevertheless, there are impediments to better patient outcomes due to the complexity of the disease physiology. Therefore, there is a demand for a comprehensive understanding of cancer development as well as a need to understand tumor progression for enhanced therapies for patients.

Previous in vivo …

Determination Of Human Hair Components By Spectrophotometric Methods For The Diagnosis Of Thyroid Diseases, Fatima H. Salih, Shaimaa S. Mahdi, Alaa H. Ali

Baghdad Science Journal

Human hair is a vital tissue, rich in minerals and vitamins that have an effective role in the production of enzymes, hormones and other substances necessary for normal growth, it is considered an indicator of any defect in the performance of body functions at all stages of life, so the use of hair in the diagnosis of diseases is a challenge in the clinical laboratory, as it will be easy to frequently monitor diseases, and it will have an impact on medical research and treatment. For instance, hypothyroidism occurs when the thyroid gland does not secrete enough thyroid hormone into …

Deep Oxidative Desulfurization Utilizing Hybrid Keggin Catalyst With 1-Methyl-3-Octyl Imidazolium Hexafluorophosphate, Yasmeen Mundher, Hussein Q Hussein, Ban A. Al-Tabbakh

Baghdad Science Journal

Deep oxidative desulfurization is a crucial topic for environmental catalysis research for producing a low-sulfur diesel. One of the effective catalysts that have been used recently for oxidative desulfurization of the refractory sulfur compound from model diesel is Keggin-type polyoxometalate. In this work, a Keggin-type catalyst TBAPW11O39, model diesel, Hydrogen peroxide (H2O2) and 1- methy l-3-octyl imidazolium hexafluorophosphate (OMIM(PF6)) were tested under different reaction conditions. The sulfur compound dibenzothiophene (DBT) in model diesel was captured in ionic liquid (IL) and then oxidized to produce related sulfones with H2O2 as an oxidant using TBAPW11O39, in a batch reactor. The impacts of …

Bernoulli Polynomials Method For Solving Integral Equations With Singular Kernel, Muna M. Mustafa, Heba A. Abd-Alrazak

Baghdad Science Journal

There is always an interest in an effective technique to generate a numerical solution of integral equations with singular or weakly singular kernels more precisely because numerical methods have limitations. In this study, integral equations with singular or weakly singular kernels are solved using the Bernoulli polynomial approach. The primary goal of this study is to provide an approximate solution to such problems in the form of a polynomial in a series of straightforward steps. Also, assuming that the denominator of the kernel will never be zero or have an imaginary value due to the selected nodes of the unique …

Preparation And Study Of The Optical Properties Of Recycled Materials Of Polymethyl Methacryalate Doped With Different Ratios Of 4-(2- Pyridylazo) Resorcinol Monosodium Salt Hydrate, Zainab J. Sweah, Fatima H. Malk, Muhsen Chelab Muhsen, Baheya Abdulbaqi

Baghdad Science Journal

This paper presents an incoming method of developing a novel optical sensor using polymethylmethacrylate was reused with the presence of the ethanol-derived resin from Frankincense (1:1) (wt:wt%-(2-Pyridylazo) Resorcinol Monosodium Salt Hydrate) (azo dye) by solution casting technique. The prepared samples were Scanning Electron Microscopes(SEM),and studied by UV-VIS spectrophotometer for wavelengths 400-800nm, the absorbance increased; however, when it exceeded 7%, the absorbance value decreased, and the behavior was identical to that of the transmittance. The absorption coefficient and Extinction coefficient and optical energy gap at 5% is the best value. were also computed. Based on the results obtained the study was …

Investigation Of Curing Kinetics Analysis And Their Effects On Properties Of Epoxy: Polystyrene Blending, Zahraa Imran Mousa, Najim. A.Saad

Baghdad Science Journal

The effect of curing conditions, such as temperature, concentration of toughening material, such as polystyrene, on epoxy resin cure kinetics was studied, along with the effects of curing parameters, such as degree of cure (α) and glass transition temperature (Tg), mechanical properties, thermal properties (TGA), and morphology of epoxy and its blends. Tg, degree of cure, and thermal stability measures were calculated from a DSC chart, mechanical properties (tensile strength, elastic modulus, and elongation at break) were measured using a universal tensile machine, the curing process was the same for all samples with varying temperatures, and the morphology of fracture …

An Object Detection Model Based On Augmented Reality For Iraqi Archaeology, Suha Dh. Athab, Abdulamir Abdullah Karim

Baghdad Science Journal

The culture of Iraq, which boasts a rich history, serves as evidence of the magnificence of human civilization. Nonetheless, safeguarding and highlighting this valuable cultural legacy has become a significant worry in a time characterized by technological progress. Augmented Reality (AR) offers a powerful tool for preserving and presenting historical sites. The aim of this research is to leverage AR technology as a means to ensure the continued preservation and dynamic presentation of Iraq's cultural heritage. This study explores the capabilities of CNNs as the basis of AR's development. CNN is used as an essential initial step in constructing AR …

On Pre­ Open Regular Spaces, Afraa R. Sadek

Baghdad Science Journal

In this paper, certain types of regularity of topological spaces have been highlighted, which fall within the study of generalizations of separation axioms. One of the important axioms of separation is what is called regularity, and the spaces that have this property are not few, and the most important of these spaces are Euclidean spaces. Therefore, limiting this important concept to topology is within a narrow framework, which necessitates the use of generalized open sets to obtain more good characteristics and preserve the properties achieved in general topology. Perhaps the reader will realize through the research that our generalization preserved …

Lung Ct Image Segmentation Using Vgg-16 Network With Image Enhancement Based On Bounded Turning Mittag-Leffler Function, Ali M. Hasan, Mohammed Khalaf, Bayan M. Sabbar, Rabha W. Ibrahim, Hamid A. Jalab, Farid Meziane

Baghdad Science Journal

Automated segmentation of diseases considered a necessary initial step in routine diagnosis. Lung diseases that affect the lungs, such as pneumonia or lung collapse can result in areas of consolidation or atelectasis, where lung tissue becomes denser or collapses. It can be challenging to accurately segment such areas, as they may exhibit similar characteristics to adjacent structures. This study proposes a lung CT image segmentation method which includes two steps: (1) a new image enhancement model that uses the bounded turning Mittag-Leffler function to improve the CT images for better segmentation outcomes. (2) a new modified VGG-16 for infection of …

Identification Of Some Biochemical Indicators To Indicate The Contamination Of Some Fish Farms In Hilla City/ Iraq, Layla Mustafa A.A. Alkatrani, Zahraa Hussein Obaid, Jasim Mohammed Salman

Baghdad Science Journal

In order to establish the possibility of determined biochemical indicators of possible pollution in Al-Forat fish farm (A) and Hussein Ajimi fish farm (B) as well as wild fish samples as a control from Shatt Al-Hilla River (C). Oxidative stress factors and antioxidant enzyme activity were determined in common carp Cyprinus carpio blood serum from two fish farms. Reactive Oxygen Species (ROS), Superoxide Dismutase (SOD), Catalase (CAT), Glutathione peroxidase (GPx) and Hydrogen peroxide (H2O2) performance were chosen as pollution bioindicators, as well as Total Protein (TP) as a general bio indicator for fish health. Results showed an increase in all …

Genetic Prevalence Of Antifungal Resistance Gene In Cancer Patients With Oropharyngeal Candidiasis From Iraq, Muhamed Abd Ulrahman Majeed, Abdulameer Jasim Mohammed, Omar Sadik Shalal

Baghdad Science Journal

As the population of immunocompromised patients grew, yeast infections became more common. There has been a significant rate of morbidity and mortality among patients with Candidiasis demonstrating increased resistance to antifungal medications. The main aim of this study was to determine the virulence gene of Candida albicans, evaluate antifungals used for Candidiasis, and biofilm formation, which is isolated from the mouth of individuals in the Baghdad Governorate From 1st October 2022 to 28th February 2023. This study included 120 oral swabs collected from people who had oral candidiasis, with an age group between10-65 including both Genders. The results obtained showed …

Spectrophotometric Determination Of 4-Ethylphenol Using Cloud Point Extraction In Different Water Samples, Alaa Mousa Imran, Saadiyah Ahmed Dhahir, Ahmed Jassim Muklive

Baghdad Science Journal

This study describes the development of an easy, inexpensive, accurate and fast spectrophotometric technique for the determination of 4-ethylphenol. The primary method involves converting 3-nitroaniline to the diazonium salt and then reacting with 4-ethylphenol in an alkaline medium. It is yellow in color and has a maximum absorption at 426 nm. It obeys Beer's law in a linear range of 5-12 µg mL-1 with a correlation coefficient of 0.9994 and a molar absorptivity 6.0024 x 103 L. mol-1. cm-1. Cloud point extraction was used to quantify trace amounts of phenol using TritonX-114 as a surfactants, and subsequently, a measurement procedure …

Intelligent System For Student Performance Prediction Using Machine Learning, Mustafa S. Ibrahim Alsumaidaie, Ahmed Adil Nafea, Abdulrahman Abbas Mukhlif, Ruqaiya D. Jalal, Mohammed M Al-Ani

Baghdad Science Journal

Accurately predicting student performance remains a significant challenge in the educational sector. Identifying students who need additional support early can significantly impact their academic outcomes. This study aims to develop an intelligent solution for predicting student performance using supervised machine learning algorithms. This proposed focus on addressing the limitations of existing prediction models and enhancing prediction accuracy. In this work employed three supervised machine learning algorithms: Random Forest, Extra Trees, and K-Nearest Neighbors. The steps of research methodology contained (data collection, preprocessing, feature identification, model construction, and evaluation). This paper utilized a dataset comprising 24,000 training instances and 6,000 testing …

Seedling Growth Of Primed Seed Under Drought Stress In Sorghum, Mohammad Omar Shihab, Jalal Hameed Hamza, William Serson, Andre Amakobo Diatta, Martin Battaglia, Maythem Al-Amery, Hail Z Rihan

Baghdad Science Journal

Drought stress is considered a limiting factor during the early growth stages of sorghum. An experiment was conducted under field conditions during the fall seasons of 2017 and 2018. The objective was to improve the growth of sorghum seedlings and their chemical properties to tolerate drought stress. Three variables were investigated: first factor cultivars (Inqath, Rabeh, and Buhoth70), second factor seed priming (primed and unprimed seed). Seeds were primed by soaking for 12 hours in a solution containing 300 mg L−1 + 70 mg L−1 of gibberellic (GA3) and salicylic (SA) acids, respectively, and third factor drought stress represented by …

On Some Separation Axioms In Soft Lattice Topological Spaces, Sandhya S. Pai, Baiju T

Baghdad Science Journal

In the realm of topology, various constraints are frequently imposed on the types of topological spaces under examination and these constraints are defined by what are known as separation axioms. Also, the separation axioms can be seen as additional conditions that may be incorporated into the definition of topological spaces. Separation axioms serve various purposes in lattice theory. They provide tools for classifying and comparing different lattices, revealing their structural and topological properties. While traditional separation axioms like T0, T1, T2, etc., still play a role, their interpretation and implications differ in the context of soft sets and lattice structures. …

Synthesis, Characterization And Antioxidant Study Of Some Metal Ion Complexes With Azo 1-(2,4,6-Trihydroxy-3-((3-Hydroxyphenyl) Diazenyl) Phenyl) Ethan-1-One., Areeg Malek Fadhel, Abbas Ali Salih Al Hamdani, Saad G. Mohamed

Baghdad Science Journal

During a diazotization coupling reaction, an azo dye-ligand (H4L) was formed by combining 3-aminophenol and 2,4,6-trihydroxyacetophenone. This ligand was then allowed to react with several different metal ions (Mo (VI), Fe (III), Co (II), Cr (III), Ru (III) and Rh (III)), forming stable metal complexes with various geometries. The binding of the azo-dye group to the metal ions was detected through the M-N and M-O absorption bands in Fourier-transform-infrared, which indicated the involvement of nitrogen and oxygen. LC-MS spectra confirmed the molecular weights of the ligand and its complexes, and elemental analysis was also conducted. Electronic spectra were used to …

Some Outcomes Involving A Specific Class Of Functions Over Differential Subordination And Superordination, Mustafa I. Hameed, Shaheed Jameel Al-Dulaimi, Kayode Oshinubi, Hussaini Joshua, Ali F. Jameel, Israa A. Ibrahim

Baghdad Science Journal

This work investigates several aspects of differential subordination and superordination, leading to the inclusion of a specific class within the domain of univalent meromorphic functions in a perforated open unit disc and deriving a few sandwich theorems. The purpose of this article is to look into a few of the characteristics of variation subordination for analytic univalent functions over a perforated unit disc. It additionally aims to shed insight into geometric characteristics like coefficient inequality, Hadamard product characteristics, and the Komatu integral operator. A few interesting findings have been discovered for variations in subordination as well as superordination in analytic …

Carbon Footprint For Industry -Al-Rasheed Vegetable Oil Factory, Elham M. Al-Bayati, Jinan S. Al-Hassan

Baghdad Science Journal

This is a comprehensive study to calculate the carbon footprint of the Al-Rasheed vegetable oil factory in gaining a clear understanding of the environmental impact and identifying opportunities for emission reduction and sustainability improvement and to provide an overview of the key elements and objectives of the current study. Utilizing industry-standard calculation methodologies and emission factors specific to Al-Rasheed Factory and geographic location, we analyzed the collected data to quantify Al-Rasheed carbon emissions across only scope 1(Direct GHG Emissions via the burning of fossil fuels) measured by using the latest IPCC 2021 version 1.02 GHG Protocol and the SimaPro version …

Nadaraya-Watson Estimation Of A Circular Regression Model On Peak Systolic Blood Pressure Data, Rana Sadiq Nazer, Omar Abdulmohsin Ali

Journal of Economics and Administrative Sciences

Purpose: The research aims to estimate models representing phenomena that follow the logic of circular (angular) data, accounting for the 24-hour periodicity in measurement. Theoretical framework: The regression model is developed to account for the periodic nature of the circular scale, considering the periodicity in the dependent variable y, the explanatory variables x, or both. Design/methodology/approach: Two estimation methods were applied: a parametric model, represented by the Simple Circular Regression (SCR) model, and a nonparametric model, represented by the Nadaraya-Watson Circular Regression (NW) model. The analysis used real data from 50 patients at Al-Kindi Teaching Hospital in Baghdad. Findings: The …