Digital Commons Network^™

An Empirical Model Of Carbon-Ion Relative Biological Effectiveness Based On The Linear Correlation Between Radiosensitivity To Photons And Carbon Ions, David B Flint, Scott J Bright, Conor Mcfadden, Teruaki Konishi, David K J Martinus, Mandira Manandhar, Mariam Ben Kacem, Lawrence Bronk, Gabriel O Sawakuchi

Faculty, Staff and Student Publications

Objective.To develop an empirical model to predict carbon ion (C-ion) relative biological effectiveness (RBE).Approach.We used published cell survival data comprising 360 cell line/energy combinations to characterize the linear energy transfer (LET) dependence of cell radiosensitivity parameters describing the dose required to achieve a given survival level, e.g. 5% (D5%), which are linearly correlated between photon and C-ion radiations. Based on the LET response of the metrics D5%and D37%, we constructed a model containing four free parameters that predicts cells' linear quadratic model (LQM) survival curve parameters for C-ions,αCandβC, from the reference LQM parameters …

Identifying Subject Bias In Wifi-Based Human Activity Recognition Evaluation Methods, Amany Elkelany, Robert J. Ross, Susan Mckeever

Conference papers

WiFi-based Human Activity Recognition (HAR) has emerged as a promising approach for monitoring and analysing human activities in a non-intrusive manner, leveraging WiFi signals for activity classification. Despite advancements, existing WiFi-based HAR research lacks consideration of subject (human) bias. This results in learning models performing well on individuals used in the training samples but failing to generalise to new/unseen subjects, in contrast to known good practices in machine learning. In this paper, we address this oversight directly by systematically examining the evaluation methodology for the WiFi-based HAR context. Specifically, we investigate the impact of Leave-One-Subject-Out Cross-Validation (LOSOCV) in a hybrid …

Draft Final Butte Treatment Lagoons (Btl) Groundwater Treatment System Routine Operations, Maintenance, And Monitoring (Om&M) Plan, Pioneer Technical Services, Inc.

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Molecular Docking Simulation Of Bioactive Compounds From Curcuma Longa Against Helicobacter Pylori, Alex J. Mbise, Pulapa V. Kanaka Rao, F.M. Stanley

Tanzania Journal of Science

Peptic ulcers are open sores that form on the lining of the stomach and upper small intestine and the primary causative pathogen is Helicobacter pylori. In this research, the inhibitory activities of bioactive compounds from Curcuma longa, against H. pylori (8H52) were studied. Eighty-three significant bioactive compounds were selected from the Zinc database and were initially screened using absorption, distribution, metabolism, excretion, and toxicity properties based on compliance with the Pfizer rule. Molecular docking studies were carried out with specific docking site dimensions of values x: -37.3658, y: -4.1028, and z: -22.8563, to identify the binding affinities and interactions. Ten …

Increased Thermal Stability And Retained Antibacterial Properties In A Sulbactam And Amantadine Salt: Towards Effective Antibacterial-Antiviral Combination Therapies, Josephine Bicknell, Ivan Bondarenko, Alice Colatrella, Elani J. Cabrera-Vega, Jesus Daniel Loya, Delbert S. Botes, Jay L. Mellies, Gonzalo Campillo-Alvarado

Chemistry Faculty Publications and Presentations

A clinically relevant multidrug solid comprising sulbactam (β-lactamase inhibitor) and amantadine (antiviral) displays enhanced thermal stability and sustained antibacterial activity compared to starting materials.

We describe the formation of a multidrug salt comprising sulbactam (SUL, β-lactamase inhibitor) and amantadine (AMNH, antiviral). Physicochemical investigation of the SUL·AMNH salt revealed enhanced thermal stability compared to pristine starting materials. In vitro studies found that salt formation in SUL·AMNH does not disrupt antibacterial activity against model organisms Escherichia coli and Staphylococcus epidermidis. To our knowledge, we show the first β-lactamase inhibitor-antiviral salt where both components have been approved by the U.S. Food and Drug …

Detection Of The Orbital Modulation Of Fe Kα Fluorescence Emission In Centaurus X-3 Using The High-Resolution Spectrometer Resolve On Board Xrism, Yuto Mochizuki, Masahiro Tsujimoto, Richard L. Kelley, Bert Vander Meulen, Teruaki Enoto, Yutaro Nagai, Chris Done, Pragati Pradhan, Natalie Hell, Katja Pottschmidt, Ken Ebisawa, Ehud Behar

Publications

The Fe Kα fluorescence line emission in X-ray spectra is a powerful diagnostic tool for various astrophysical objects to reveal the distribution of cold matter around photoionizing sources. The advent of the X-ray microcalorimeter on board the XRISM satellite will bring new constraints on the emission line. We present one of the first such results for the high-mass X-ray binary Centaurus X-3, which is composed of an O-type star and a neutron star (NS). We conducted a 155 ks observation covering an entire binary orbit. A weak Fe Kα line was detected in all orbital phases at an equivalent width …

Environmental Concerns: Thinking Beyond The Traditional Elections, Muhammad Faisal Ali

CBER Conference

A sustainable future is intricately tied to maintaining a sustainable environment, both on a global scale and within individual countries. In 2023, recorded temperatures reached unprecedented highs, signaling a concerning trend toward global warming and prompting widespread alarm. These circumstances have spurred increased global attention and a shift away from intensive emission practices towards more environmentally friendly approaches. This research provides empirical evidence on the monetary value of lost environmental benefits due to the production of massive ballot papers for the elections. Focusing on the environmental impact of the 2024 General Election, the study also considers the environmental implications beyond …

Impact Of Pathogenic E. Coli In Drinking Water On The Well-Being Of Children, Aysha Khatoon

CBER Conference

Despite global advancements, unsafe drinking water is a major cause of illness, ranked as the eighth highest worldwide (Forouzanfar et al., 2015). Studies indicate that even improved water sources, can harbour faecal contamination (Shaheed et al., 2014; Bain et al., 2014b). Globally, 1.8 billion people rely on drinking water contaminated with faecal matter (Bain et al., 2014a), with pathogenic E. coli being a primary concern. In Pakistan, the situation is dire. About 25 million people, particularly children, suffer due to open defecation, leading to 53,000 child deaths annually from diarrhoea (UNICEF, 2021). Pathogenic E. coli is a significant contributor to …

Assessing University Students' Behavior Toward Environmental Sustainability In Pakistan; A Case Study Of Islamabad And Rawalpindi, Shahla Rani

CBER Conference

The rising temperature and unsustainable environmental conditions are worldwide issues, posing critical threats to the ecosystem and human well-being. According to the Environmental Performance Index (EPI) 2022, Pakistan ranks second last among 180 countries, highlighting severe environmental challenges. This study aims to understand the current state of students' behavior toward the environment using the theory of planned behavior. By understanding these behaviors, the research seeks to determine whether students' actions align with sustainable practices. Additionally, the study will review environmental policies in Pakistan and internationally, focusing on the extent to which these policies incorporate behavioral aspects. This research intends to …

Analyzing Food Security Trends Amidst Environmental Challenges: A Convergence Perspective, Faisal Azeem Abbassi, Muhammad Jamil

CBER Conference

This study aims to test the existence of convergence in global food security from 2012 to 2022. It contributes to the existing literature by connecting two empirical findings: first, income per capita is a significant determinant of countries’ state of food security, and second, the neoclassical growth model predicts income per capita to converge over time. These findings suggest the possibility of convergence in global food security. This study employs Phillips and Sul’s (2007) club convergence methodology on the Global Food Security Index (GFSI) 2022 model, developed by Economist Impact for 113 countries. Results indicate an absence of global convergence …

Role Of Greenfield Investment, Institutional Quality, And Economic Activities On Environmental Performance In Belt & Road Initiative Countries, Jamal Hussain, Sajid Hassan

CBER Conference

Researchers have produced varying conclusions on the matter of coexistence of economic activities with the protection or improvement of environmental performance. This study investigates the association between greenfield investments, economic activity, institutional quality, and environmental performance in Belt & Road Initiative (BRI) countries from 2003 to 2022. Yale University's Environmental Performance Index (EPI) assesses environmental performance. Advanced second-generation econometrics estimation approaches address concerns like cross-sectional dependence, potential endogeneity, and heterogeneity. Further analysis is employed across four income-level sub-panels: lowincome (LI), lower-middle-income (LMI), upper-middle-income (UMI), and high-income (HI) countries, covering the years 2003 to 2021 to validate reliability and consistency. This …

Customer Data And The Digital Age, Mahdi Ansari

CBER Conference

Data is widely regarded as the most valuable resource in today’s economy, yet its value often eludes precise quantification. This paper examines customer data as an intangible capital asset and addresses the challenge of measuring its impact. A novel database was created by merging Compustat with online clickstream data capturing the activity of approximately 200 million users, providing proxies for data inflow based on visit metrics. The analysis documents that the distribution of firms’ customer data stocks follows a rightskewed log-normal pattern with a fat tail. Additionally, a positive relationship emerges between sales and data inflow, data stock, profit, and …

If You Can’T Beat Them Join Them: Empirical Assessment Into How Integrating Conventional Taxis On The Uber App Impacts Conventional Taxi Ridership, Shahmeer Mohsin

CBER Conference

Since the emergence of ride-hailing platforms like Uber, conventional taxi ridership has taken a severe hit. Taxi-hailing apps like Curb and Arro have allowed conventional taxis to jump on the platform economy bandwagon and offer a similar service to ride-hailing platforms. Despite the emergence of these taxi-hailing apps, strong lock-in effects and high switching costs of popular ride-hailing platforms (Uber, Lyft, etc.) restrict the ridership volumes of conventional taxis. Recently, the ride-hailing platform, Uber has started to add conventional taxis on its app under increasing pressure from Cities and conventional taxi associations. Such integrations have the potential of increasing conventional …

Tarrant County Archeological Society News, Vol. 6, No. 8, 1992, Editor's Material, Bryan Jameson, Jimmy Smith

North Texas Archeological Society Records

Editor's draft of volume six and issue eight of Tarrant County Archeological Society News.

Tarrant County Archeological Society News, Vol. 6, No. 8, 1992, Bryan Jameson, Jimmy Smith

North Texas Archeological Society Records

Volume six and issue eight of Tarrant County Archeological Society News.

Synthesis And Characterization Of Metal-Organic Framework Nanostructures And Evaluation Of Their Photocatalytic Activity, James Kegere

Thesis/ Dissertation Defenses

Reticular materials have enlisted tremendous interest from researchers across the globe in the last two decades. This heightened interest stems from the novelty in structure and chemistry that renders them peerless in multiple fields such as medicine, energy, and environment. On the environmental research front these materials have found applications in mitigation of different pollutants such as CO₂ which is the most important greenhouse gas through storage and conversion, catalysis of CO₂ conversion into useful products. Furthermore, these materials have also proven to be effective sorbent materials for many toxic compounds that find their way into freshwater systems …

International Student Assessment Of Advising Practices Using Cultural Context, Debbie Park

MAGIS: Student Development Journal

Creating significant learning opportunities for international students requires that advisors adapt to meet a diverse array of needs. Admissions and academic advising represent the main services offered by the International Programs (IP) office at South Seattle Community College (SSCC). Due to the author’s connection to academic advising, this paper centers on ways in which advising and assessment practices can utilize cultural sensitivity. The paper concludes with an analysis of the challenges and limitations that SSCC currently faces in the IP office.

Investing In The Future: A Financial Comparative Study Of Hsis, Hbcus, And Non-Minority Serving Liberal Arts Colleges, Sophia Phelan

Honors Program Theses and Research Projects

This research presents a preliminary expedition into identifying the relationship between Net Present Value (NPV) and Return on Investment (ROI) of general liberal arts institutions, Hispanic Serving Institutions (HSIs), and Historically Black Colleges and Universities (HBCUs). HSIs and HBCUs have a long tradition of serving specific underrepresented communities of color, fostering success through culturally appropriate learning environments. This research utilizes a unique business lens to discuss the value of a service-based institution, using tools such as value proposition and consumer fit, and then, it compares each set of institutions using ROI and NPV. The data, sourced from College Scorecard, Georgetown …

Ud Mathematicians Awarded $275k For ‘Pure’ Math Research, Student Mentoring, Dave Larsen

College of Arts and Sciences Newsroom

The projects explore abstract concepts and theoretical frameworks that could contribute to biology, physics and engineering applications.

Financial Strategies Nonprofit Organizations Use For Sustainability, Charlena Young

Walden Dissertations and Doctoral Studies

Nonprofit organizations play a crucial role in providing essential resources to communities. However, research indicates that many nonprofit leaders lack the financial strategies needed to generate sustainable revenue for their organizations. Grounded in the resource dependence theory, the purpose of this qualitative single-case study was to explore the financial strategies that three nonprofit leaders used for revenue generation to sustain the organization. Data were collected from the literature review, semistructured interviews, and public documents. The thematic analysis included data coding and theme identification. The three key themes identified were revenue diversification, relationship-building, and internal financial processes. The key recommendations for …

Financial Strategies Nonprofit Organizations Use For Sustainability, Charlena Young

Walden Dissertations and Doctoral Studies

Nonprofit organizations play a crucial role in providing essential resources to communities. However, research indicates that many nonprofit leaders lack the financial strategies needed to generate sustainable revenue for their organizations. Grounded in the resource dependence theory, the purpose of this qualitative single-case study was to explore the financial strategies that three nonprofit leaders used for revenue generation to sustain the organization. Data were collected from the literature review, semistructured interviews, and public documents. The thematic analysis included data coding and theme identification. The three key themes identified were revenue diversification, relationship-building, and internal financial processes. The key recommendations for …

Orbital Thinking: Planetary Orbit As A Model For Neurodivergent Thought Experiences In Animation, Thomas Labow

Honors Projects

As an artist diagnosed with Attention-Deficit/Hyperactivity Disorder, or ADHD, the aim of my research is to artistically explore neurodivergent experiences using gravity-assisted space flight as a visual metaphor for episodic memory and the pivot between correlated ideas. “Orbit of Attention” is a short animated film that visualizes interconnected mental processes through the use of a character-driven narrative. The creative choice of depicting ideas as planets is inspired by the gravity-assisted flight path of the Voyagers’ grand tour of the solar system. In visualizing unconventional thought processes, “orbital thinking” was used to model episodic memory. As a research project, this film …

Three Faculty Members Selected For Nsf Research Fellowships, Clara Turnage

University of Mississippi News

OXFORD, Miss. – For the first time, three University of Mississippi researchers have been awarded National Science Foundation EPSCoR Research fellowships in the same year.

Na2B12Si6Se18: A Novel B12-Cluster-Containing Quaternary Selenoborate Framework Material, Gopabandhu Panigrahi, Hunter B. Tisdale, Gregory Morrison, Hans Conrad Zur Loye

Faculty Publications

We report the successful synthesis of the new quaternary, three-dimensional Na₂B₁₂Si₆Se₁₈ material using a solid-state synthesis route. This compound is characterized by a unique framework structure that features the rare icosahedral [B₁₂]¹⁰⁺ cation which is connected via Si2Se6 polyhedral units into a 3D framework structure with Na+ ions located inside the channels. The Na₂B₁₂Si₆Se₁₈ compound crystallizes in the cubic crystal system in the space group Im, with lattice parameter a = 11.91110(10) Å and unit cell volume of 1689.88(4) ų. …

Antibiotic Resistance Of Laboratory E. Coli Strains, Alexis H. Hart

Honors Projects

Antibiotic resistance is an ongoing global health crisis. The prevalence and distribution of antibiotic resistance in environmental microbial communities have become climactic areas of investigation due to their far-reaching implications for ecosystem health, human well-being, and the sustainability of antimicrobial efficacy.

Using Fragments To Uncover Connections Through Call And Response, Resonance, And Dissonance, Mary Garland, Laurinda Brown, Melissa Dunlop, Carol Laidler, Marian Liebmann, Donata Puntil, Artemi Sakellariadis, Jane Speedy

Professional Services

CANI-net (Collaborative Artful Narrative Inquiry Network) has evolved over the last thirty years from being a research center and network at the University of Bristol to holding online monthly “open inquiry space” sessions attended by scholars, educators, and artists around the world. The sessions are flexible, encouraging the presentation of work in progress, ideas just emerging, middling, in a warm, friendly, supportive atmosphere with students and academics and others engaging, collaborating, and offering feedback to one another. Each session usually offers the opportunity for those present to write into the shared space, and to then share that writing. In the …

Enhancement Of Ambient Air Quality Index Forecasting Using Optimized Ensemble Model, Vanitha M

Theses and Dissertations

Forecasting ambient air quality is essential for environmental sustainability and public health, especially in heavily populated regions such as China, India, and the United States where air pollution remains a serious concern. Traditional forecasting models often struggle to accurately represent air quality data because of its complex patterns and nonlinear interactions. To address these challenges and improve forecast performance, this research proposes a comprehensive strategy that integrates parallel heterogeneous ensemble modeling with Bayesian optimization.

The study begins with a seasonal machine learning–based imputation technique (SeasonalMLImpute) designed to handle missing data in meteorological and air quality parameters. This method is evaluated …

Exploring The Factors Involved To Support African American Males' Success In Mathematics During The Early Grades, Elmore Travis Collier

LMU Theses and Dissertations

This study used a mixed methods approach to examine the instructional and social emotional factors that support African American boys’ success during early elementary grades. The study investigated key influences including teacher and parent demographics, student-teacher, and parent-student relationships, building mathematical confidence in students, and approaching math as a long-term investment. It explored how these factors existed within an ecosystem that contributed to positive math outcomes for students by the third grade. The study used surveys and interviews of teachers, parents, and students to describe instructional activities, relationships, and interactions at school and home that supported positive math outcomes. Findings …

12.09.2024 Orsp Connect, Liz Williamson

ORED Newsletter

Employee Profiles

In Person Account Reconciliation and Tableau Training

NSF Proposals with Consultant or Professional Services

The Echo: December 9, 2024, Taylor University

2024-2025 (Volume 112)

No abstract provided.