Digital Commons Network^™

Synthesis, Characterization , Thermal Studies And Antioxidant Activities Of Transition Metal Complexes With Azo Dye Ligand, Amnah Mahdi Abdullah, Abbas Ali Salih Al-Hamdani

Baghdad Science Journal

Diazotization reaction between 1-(2,4,6-Trihydroxy-phenyl)-ethanone and diazonium salts was carried out resulting in ligand 4-(3-Acetyl-2,4,6-trihydroxy-phenylazo)-N-(5-methyl-isoxazol-3-yl)-benzenesulfonamide, this in turn reacted with the next metal ions (V4+ , Cr3+ , Mn2+ and Cu2+) forming stable complexes with unique geometries such as (Octahedral for both Cr3+ , Mn2+ and Cu2+ ,squar pyramidal for V4+). The creation of such complexes was detected by employing spectroscopic means involving ultraviolet-visible which proved the obtained geometries, fourier transfer proved the formation of azo group and and the coordination with metal ion through it. Pyrolysis (TGA & DSC) studies proved the coordination of water residues with metal ions inside …

On Partition Dimension And Domination Of Abid-Waheed 〖(Aw)〗_R^4 Graph, Jalal Hatem Hussein Bayati, Abid Mahboob, Muhammad Waheed Rasheed, Dur E Najaf

Baghdad Science Journal

A graph denoted by H, which has a simple link between its vertices, possesses the set of vertices V(H) . Given a graph, a set that is dominant, is a subset of vertex set such that any vertex outside of is close to at least one vertex inside of . The smallest size of for the dominating set is known as the graph’s domination number. When a linked graph H has a vertex x and a subset of the vertex set, the separation between x and S is given by. Pertaining to an ordered k-partition of , the illustration of …

Green Synthesis Of Manganese Dioxide Nanoparticles And Its Biological, Sabeeha K. Shanshool, Zainab J. Shanan

Baghdad Science Journal

The goal of this research is to prepare Manganese dioxide (MnO2) nanoparticles from plant extracts (Puncia granatum L peel, Artemsiai herba-alba Asso, Matricaria chamomilla L, and Camellia sinensis) and test their antibacterial activity. To evaluate the presence of phytochemicals in plant extracts, were used UV-Visible spectrophotometer analysis (UV– Vis), Zeta potential (ZP), and X-ray Diffraction (XRD). The production of MnO2 nanoparticles by plant extracts was shown to have distinctive features. The average crystallite size of manufactured MnO2 NPs was calculated to be between 14.22-21.0 nm, with zeta potential values -23.6, -20.04, -25.6, -16.7 mV, respectively. Manganese dioxide nanoparticles (MnO2 NPs) …

Synthesis, Spectroscopy And Biological Activity Study Of Some New Complexes With Schiff Base Derived From Malonic Acid Dihydrazide With 2-Pyridine Crboxaldehyde, Rehab Ghalib Hammoda, Naser Shaalan

Baghdad Science Journal

From synthesized novel ligand (L) made of Malonic acid dihydrazide and 2-pyridine carboxaldehyde, new complexes have been created. Ni(II), Cu(II), and Zn(II) complexes were created as a result. FT-IR, UV-Vis, Mass, 1H-NMR, 13C-NMR, C.H.N., Chloride-containing, Molar Conductance, Magnetic Susceptibility, and Atomic Absorption have all been used to identify these compounds. For each Nickel, Copper, and Zinc complexes the characterization findings revealed complexes with hexadentate octahedral coordination geometry and tetradentate ligand. Two Gram-positive (Staphylococcus aureus and Bacillus subtitles) and two Gram-negative (Escherichia coli and Pseudomonas aeruginosa) bacteria, as well as candida fungus, were evaluated for the biological activities of the novel …

Designing And Implementing A Portable Ultrasound Bone Densitometer, Saleh Massoud, Mohammad Ruqiah, Ebrahim Ismaiel, Ahmad S. Ahmad, Fadi Motawej

Baghdad Science Journal

Osteoporosis is a disease characterized by a low bone mass that increases the risk of fracture. The dual energy X-ray absorptiometry (DXA) bone densitometer is considered as the gold standard to measure bone mineral density (BMD). In Syria, the DXA is costly, not widely available and coupled with a strong reluctance among patients concerning exposure to ionizing radiation. On the other hand, several recent studies found that Quantitative Ultrasound (QUS) is useful in diagnosing osteoporosis and giving accurate information about the qualities of bone. This study aims to design and implement a portable ultrasound bone densitometry to measure BMD. The …

Derivative Spectrophotometric Methods For Simultaneous Determination Of Quercetin And Gentisic Acid In Capparis Spinosa L., Dlgash Hamad Maruf, Rizgar Hassan Mohammad

Baghdad Science Journal

Capparis spinosa L. is one of the medicinal plants used in traditional medicine which contains numerous phytochemicals including polyphenolic compounds. Quercetin and gentisic acid are two important phenolic compounds found in plants which display many medicinal properties such as anti-inflammatory, antimicrobial, antioxidant and anticancer. Determination of both compounds together in a binary mixture is not achieved yet with spectrophotometric methods. In this study, two simple, rapid and accurate derivative spectrophotometric methods were developed and used for simultaneous quantification of quercetin and gentisic acid in binary mixtures of Capparis spinosa L. methanolic leaves extract. The first technique relies on the zero-crossing …

Total Phenolic, Flavonoids And Vitamin C Contents With Antioxidant Activity Of Urtica Dioica L. Leaves Growing In Zakho, Kurdistan Region-Iraq, Gharbia A. Omer, Lina Y. Mohammed

Baghdad Science Journal

The genus Urtica dioica L. (Urticaceae) is frequently grown in the Kurdistan region of Iraq and is used as a folk remedy by the locals to heal a variety of illnesses. The purpose of this study is to evaluate the total phenolic, flavonoid and vitamin C contents using spectrophotometric method with the determination of antioxidant activities for different solvents such as (aqueous, ethanol, ethyl acetate, chloroform and n-hexane) using different antioxidant methods namely (1,1-diphenyl-2-picrylhydrazyl, reducing power assay, total antioxidant capacity, nitric oxide scavenging, hydroxyl radical, β -carotene- Linoleic acid and iron chelating assays) and ascorbic acid as standard reference. Our …

Optimum System Design Using Rough Interval Multi-Objective De Novo Programming, Iftikhar Hussein, Hegazy Zaher, Naglaa Ragaa Saeid, Hebaa Sayed Roshdy

Baghdad Science Journal

The Multi-objective de novo programming method is an effective tool to deal with the optimal system design by determining the optimal level of resources allocation (RA) to improve the value of the objective functions according to the price of resources (the conditions are certainty). This paper suggested a new approach for solving uncertainty of De novo programming problems (DNP) using a combination model consisting of a rough interval multi-objective programming (RIMOP) and DNP, where coefficients of decision variables of objective functions and constraints are rough intervals (RIC). Three methods are used to find the optimal system design for the proposed …

Correlation Between Il-6 And Age In Covid-19: Insights From A Cross-Sectional Analysis In Malang, Indonesia, Agustin Iskandar, Dearikha Karina Mayashinta, Catur Suci Sutrisnani, Nur Samsu, Agustina Tri Endharti, Edy Widjajanto

Baghdad Science Journal

Interleukin 6 (IL-6) has been identified as a predictor of severity and mortality in COVID-19. Although morbidity and mortality generally increase with age, it remains uncertain whether there is a correlation between age and IL-6 levels, thereby exacerbating the severity of COVID-19 in patients. The objective of this study was to examine the correlation between age and IL-6 levels in COVID-19 patients. The study was cross-sectional, analyzing laboratory and medical records of 3,171 COVID-19 patients who received treatment in 2021 at Saiful Anwar General Hospital. The Data analyzed using Kruskal-Wallis, Dunnett's Post Hoc, and Spearman Correlation tests. The patients were …

Modification Of The Multi-Stage Treatment (Anaerobic- Anoxic- Oxic) By Adding Almond Shells As Biological Carriers, Raghad Alshalabi, Rasin Zakieh, Naeima Ajib

Baghdad Science Journal

In this study, the treatment process Anaerobic- Anoxic- Oxic (A2O) was modified by adding almond shells as biological carriers. The performance of it has been evaluated in two groups for simultaneous removal of organic matter and nutrients (nitrogen and phosphorous) from wastewater. In both groups the hydraulic retention time (HRT) was 12.5 hours and mixed liquor suspended solid (MLSS) was 2000 mg/L. In the first group: The Oxic bioreactor was filled with packing up to 7% on an effective volume basis. In the second group: All bioreactors were filled with packing up to 7% on a volume basis for each …

Innovación Educativa Y Desarrollo Sostenible: El Uso De Papel Reciclado Para El Desarrollo De Nuevos Materiales. El Caso De La Comunidad Eelisa «El Campus Circular Y Regenerativo» En El Proyecto De La Mejora Acústica De Dos Aulas Del Instituto De Ciencias De La Educación (Ice), David Sanz Araúz, Nadia Vasileva

Capítulos de libros

El presente capítulo recoge parte del trabajo de investigación de la comunidad EELISA «El campus circular y regenerativo» (CRC), coordinado por la Universidad Politécnica de Madrid (UPM). Desde 2021, en el campus de la ETS de Arquitectura se han emprendido proyectos enfocados a la innovación educativa mediante estrategias pedagógicas simples e innovadoras. Uno de los proyectos clave se centra en crear y caracterizar materiales basados en celulosa a partir de papel reciclado del propio campus. El proceso abarca diversas etapas, con participación estudiantil a través de varias actividades docentes. Se destaca el prototipado en curso de un panel acústico elaborado …

Distinguishing Family Poverty From Child Neglect, Joshua Gupta-Kagan

Faculty Scholarship

Family courts and child protective services (“CPS”) agencies surveil, regulate, and separate hundreds of thousands of families for neglect annually. These families are overwhelmingly poor, and the history of this legal system reveals an expectation, if not an intention, to intervene in poor families. This raises the question whether family courts and CPS agencies are “confusing poverty and neglect” or if they intervene for more than “just poverty,” as a raging debate in the field is framed.

The law fails to help resolve this debate. Instead of distinguishing poverty from neglect, or providing nuanced examinations of what social science has …

May 2024, Swosu Bulldog Wellness Committee

SWOSU BULLDOG WELLNESS

May is Mental Health Awareness Month

• 1 in 5 U.S. adults experience a mental health condition each year.
• You are not alone on your mental health journey.
• Mental illness affects more than 50 million people in the U.S.

College And Career Readiness Effects On Minority Male College Retention, Naquiyah Hodges

Electronic Theses and Dissertations

Abstract

The continuously low college retention and low degree attainment of African American and Hispanic men is a generational and decades-long hindrance to the elevation of these marginalized communities in the United States and the state of Texas. In Texas, the last 3 years’ worth of data has proven college-readiness rates of African American and Hispanic college students were significantly lower by large margins than White students in English language arts, math, and both subjects by large margins. Consistent low college retention rates of minority men produce a need to conduct further research of how this phenomenon affects minority men …

Quantifying Image Quality In Aoslo Images Of Photoreceptors, Brea D. Brennan, Heather Heitkotter, Joseph Carroll, Sergey Tarima, Robert F. Cooper

Biomedical Engineering Faculty Research and Publications

The use of “quality” to describe the usefulness of an image is ubiquitous but is often subject to domain specific constraints. Despite its continued use as an imaging modality, adaptive optics scanning light ophthalmoscopy (AOSLO) lacks a dedicated metric for quantifying the quality of an image of photoreceptors. Here, we present an approach to evaluating image quality that extracts an estimate of the signal to noise ratio. We evaluated its performance in 528 images of photoreceptors from two AOSLOs, two modalities, and healthy or diseased retinas. The algorithm was compared to expert graders’ ratings of the images and previously published …

Numerical Simulations Of Supersonic/ Hypersonic Flows In Compression Corners And A Hypersonic Flow Study Of Atmospheric Entry Of Mars Science Laboratory Capsule, Dexter Allen

McKelvey School of Engineering Graduate Student Theses & Dissertations

This thesis consists of two related parts. The first part is the study of supersonic/hypersonic flow in compression corners. The compression corners are simple geometries but rich in flow-features that can be challenging for accurate prediction of their flow fields in high-speed compressible flow using the Reynold-Averaged Navier-Stokes (RANS) equations in conjunction with a turbulence model. At higher degrees of corner angles, there exists a shock-boundary layer interaction region which includes a significant recirculation zone in the corner. In this thesis, experimentally available test cases for compression corner at Mach 3, 8, and 11 at various corner angles are modeled …

The Role Of Voluntary Descending Control In Enhancing Motor Function Via Transcutaneous Spinal Cord Stimulation, Yoon Kim

McKelvey School of Engineering Graduate Student Theses & Dissertations

Spinal cord injury (SCI) is a life-changing event that causes lasting motor impairments. Transcutaneous spinal cord stimulation (tSCS), a non-invasive form of neuromodulation in which electrodes are placed on the skin and used to stimulate the spinal circuits via an electrical current, has demonstrated positive effects on motor function recovery in individuals who have had SCIs. However, the precise mechanism of how tSCS interacts with voluntary descending drive remains poorly understood. This study aims to investigate the role of voluntary descending control in influencing reflex responses triggered by tSCS.

Electromyography (EMG) recordings were performed in ten unimpaired individuals while they …

Development Of A Wearable Short-Wave Infrared Photoplethysmography Device For Detection And Monitoring Of Hemodilution During Postpartum Hemorrhage, Hannah Gruensfelder

McKelvey School of Engineering Graduate Student Theses & Dissertations

ABSTRACT OF THE THESIS

A Thesis on the Development of a Wearable Short-Wave Infrared Photoplethysmography Device for Detection and Monitoring of Hemodilution During Postpartum Hemorrhage

by

Hannah Gruensfelder

Master of Science in Biomedical Engineering

Washington University in St. Louis, 2024

Professor Christine O’Brien, Chair

Postpartum hemorrhage (PPH), the leading cause of maternal death and morbidity, affects nearly 14 million people worldwide each year, disproportionally impacting racial minorities and people in low resource settings. A timely diagnosis of PPH is key in providing optimal patient care, as an estimated 90% of deaths due to PPH are preventable with early diagnosis and …

Modeling Of Nk Cells In Pediatric Patients With Unusually Severe Or Recurrent Hsv Using High-Dimensional Flow Cytometry, Yunran Feng

McKelvey School of Engineering Graduate Student Theses & Dissertations

HSV infection is broadly spread all over the world with some patients having severe and/or recurrent HSV infections. Our lab studies human Natural Killer (NK) cells, which are important in innate immune responses to viral infections and tumors. A publication in 2013 by Ornstein et al from our lab studied HSV+ pediatric patients and found some associations between severe infection and defects in NK cytolytic function. PLCG2 haploinsufficient variants found in 2 HSV patients causing PLCγ2 hypophosphorylation, and loss of cytolytic function in NK cells is a novel finding recently published by Alinger et al from our lab in 2023. …

Optimizing Ic Engine Efficiency: A Comprehensive Review On Biodiesel, Nanofluid, And The Role Of Artificial Intelligence And Machine Learning, Manzoore E. M. Soudagar, Sagar Shelare, Deepali Marghade, Pramod Belkhode, Mohammad Nur-E-Alam, Tiong S. Kiong, S. Ramesh, Armin Rajabi, Harish Venu, T. M. Yunus Khan, M. A. Mujtaba, Kiran Shahapurkar, M. A. Kalam, I. M. R. Fattah

Research outputs 2022 to 2026

Transportation and power generation have historically relied upon Internal Combustion Engines (ICEs). However, because of environmental impact and inefficiency, considerable research has been devoted to improving their performance. Alternative fuels are necessary because of environmental concerns and the depletion of non-renewable fuel stocks. Biodiesel has the potential to reduce emissions and improve sustainability when compared to diesel fuel. Several researchers have examined using nanofluids to increase biodiesel performance in internal combustion engines. Due to their thermal and physical properties, nanoparticles in a host fluid improve engine combustion and efficiency. This comprehensive review examines three key areas for improving ICE efficiency: …

Young People's Alcohol Use In And Around Water: A Scoping Review Of The Literature, Renee N. Carey, Gemma Crawford, Jonine Jancey, Tina Lam, Lauren Nimmo, Gina Trapp, Christina Pollard, Paula Hooper, Justine E. Leavy

Research outputs 2022 to 2026

Issues: The surrounding social and commercial context, including alcohol advertising, heavily influences alcohol consumption. Alcohol use is a major risk factor for both fatal and non-fatal drowning, particularly for young people. Approach: We conducted a scoping review to explore the peer-reviewed literature on the use of alcohol by young people (aged 15–34 years) in the context of aquatic environments. Five electronic academic databases were searched for English-language studies conducted in high-income countries and published in the last 15 years (since 2008). The MetaQAT framework was used to assess methodological quality of included studies. Key Findings: The review included a total …

Student Self-Efficacy And Attitude In Organic Chemistry: A Comparison Of Two Pedagogical Approaches, Matthew Autry

Arts & Sciences Graduate Student Theses and Dissertations

No abstract provided.

“It's More Than A Book Club”: Counterspaces And Bibliotherapic Wellness Among Black Undergraduate Women, Khrystal Johnson

Arts & Sciences Graduate Student Theses and Dissertations

Black students at Predominantly White Institutions (PWI) face heightened vulnerability to general and race-related stressors, necessitating the identification of culturally responsive and alternative care approaches to complement traditional talk therapy and clinical assessment, given the associated adverse academic and psychological outcomes. The current study explores the utility of a Black women-focused book club as an inclusive and identity-affirming space for Black women attending an elite and private PWI. Additionally, we consider how this bibliotherapic and group-based approach offered a critical counterspace for participants. Over the course of a four-month semester, two Black women co-facilitators held a monthly book club series …

Carmina Anacreontea 1-20: Text, Translation, And Commentary, Bayla Kamens

Arts & Sciences Graduate Student Theses and Dissertations

No abstract provided.

The Domain Specificity And Conscious Awareness Of Learned Memory Biases, Gizem Filiz

Arts & Sciences Graduate Student Theses and Dissertations

The False Positive Feedback (FPF) manipulation encourages certain recognition errors by inducing either liberal (lax) or conservative (strict) recognition memory decision biases. FPF manipulation involves trial-by-trial probabilistic positive feedback for commission or omission errors while the other stimulus class always received fully correct feedback during testing. We investigated whether these learned biases are restricted to the stimulus class triggering FPF, or whether they instead spread to an intermixed class receiving valid feedback, by selectively delivering FPF to words or pictures. A spreading bias would suggest that subjects learn to be liberal or conservative in interpreting recognition evidence in general during …

Cardiovascular Risk As A Mediator Of Associations Between Brain-Derived Neurotrophic Factor With Longitudinal Brain And Cognitive Trajectories In Older Adults, Jennifer Shearon

Arts & Sciences Graduate Student Theses and Dissertations

Prior work has shown that higher levels of brain-derived neurotrophic factor (BDNF) are associated with better brain health and cognitive function. There is also evidence that BDNF is present in cardiovascular tissue and that it may be beneficial for cardiovascular function. This is evidenced by higher BDNF being associated with lower incidence of coronary heart disease and mortality, and with lower incidence of cardiovascular risk factors. The goal of the current study was to investigate the relationship between BDNF and cardiovascular function, and to assess whether there is a mediating or moderating role of cardiovascular health in the relationship between …

Sheep Grazing Influences The Abundance, Diversity, And Community Composition Of Wild Bees And Other Insects In Livestock Pastures, Roshani Sharma Acharya, Timothy B. Leslie, Joan Burke, Kusum Naithani, Emily Fitting, Kelly Loftin, Neelendra K. Joshi

Entomology and Plant Pathology Faculty Publications and Presentations

Pollinators contribute to the establishment of perennial native forages, but little is known about the effect of grazing practices on pollinator abundance and diversity in livestock pasture ecosystems. Grazing reduces floral resources available to bees and other insects, and as a result, may influence their communities. The main objective of this study was to examine the impact of sheep grazing on bees and other non-bee insects in livestock pasture established with seed mixes of native forb/legume/grass and warm season grasses. Each pasture was divided into two halves (in a split-plot design) using an electric fence in which one plot was …

Beyond The Bedroom Door: Investigating Representations Of Sex In Young Adult Literature, Amelia Gutche

English Undergraduate Honors Theses

This thesis examines representations of sex in young adult (YA) fiction, focusing on negative patterns, empowerment, and healthy relationships. Through analysis of seven YA novels and existing scholarship, three research questions are addressed: the evolution of sexual representations in the twenty-first century, patterns characterizing teenage sexual situations, and distinctions between healthy and unhealthy relationships. Findings reveal a shift toward more inclusive and empowering depictions, yet lingering conservative values and silences persist. YA literature often portrays sex as a source of fear and obsession, limiting adolescent power and perpetuating unrealistic ideals. Healthy relationships are characterized by support systems, mutual respect, and …

Women Rebuilding Their Lives Post Incarceration: The Obstacles Of Housing And Employment, Sydney Ward

English Undergraduate Honors Theses

According to a report from The Sentencing Project, "the female incarcerated population stands nearly five times higher than in 1980" and this trend has continued, which means that "at the national level, 47 out of every 100,000 women were in prison in 2020" (“Incarcerated Women and Girls.”). This means that women are leaving prison and beginning their reentry process into society every day, which is much easier said than done. With this reentry process, there are various barriers that each woman must overcome to reestablish their lives. When women are released from incarceration, the first thing they must do is …

Exploring Trauma In The Writing Of Incarcerated Women, Madeline Hagedorn

English Undergraduate Honors Theses

This project examines memoirs and short narrative pieces written by incarcerated or formerly incarcerated women, specifically focusing on trauma experienced before incarceration. Through analysis of one anthology and two memoirs, this project addresses how writing can facilitate healing in justice-impacted women who have experienced physical and/or sexual trauma, looking at writing conducted inside or outside of the prison environment and writing conducted in a prison writing group or alone. Analysis of these three texts shows that writing, regardless of the environment conducted, can facilitate healing in incarcerated women who have experienced past trauma. The literary techniques employed by the authors …