Digital Commons Network^™

Understanding Defect Dynamics In Black Phosphorene Under Noble Gas Ion Irradiation., Saransh Gupta

Electronic Theses and Dissertations

Controlled introduction of defects in phosphorene using high-energy ion beams offers a promising route to design novel high-performance materials for energy technologies. However, this potential remains underexplored due to a lack of fundamental understanding of the atomic-scale mechanisms governing the production, accumulation, and temporal evolution of defects during ion irradiation. Here, we employ a combination of classical and ab initio molecular dynamics simulations to elucidate the effects of ion energy, angle of incidence, noble gas ion size/mass, and fluence on (a) defect generation (i.e., point defects, topological imperfections, voids), (b) atomic-scale mechanisms of defect formation and re-arrangement, and (c) defect …

Differential Responses Of Human Neutrophils To Legionella Species., Hannah E. Hanford

Electronic Theses and Dissertations

Legionella species are Gram-negative facultative intracellular bacterial pathogens commonly found in freshwater or soil environments where they survive and replicate within their natural protozoan hosts. Humans serve as an accidental host for Legionella species after inhalation of contaminated aerosolized water droplets or soil particles enabling the bacteria to enter the lungs, infect alveolar macrophages, and result in severe pneumonia. Evasion of degradation and proliferation within alveolar macrophages by Legionella species and manifestation of “Legionnaires’ disease” is dependent on the Dot/Icm type IV secretion system (T4SS). The T4SS apparatus is a needle-like channel for translocation of over ~350 effector proteins, depending …

2023 Carroll County Advisory Council Minutes And Agendas, Mikayla Cerney

UNH Cooperative Extension

No abstract provided.

Computational Modeling In A Calculus-Based Physics Lab: Students’ Problems And Successes In Physics 2060, Abigail Sophia Flowers

Masters Theses

In the past few decades, computational modeling skills have become essential for students who want to pursue careers in physics or engineering. This issue of how to incorporate these skills into students' learning has become an important one because students in these degrees are already required to take several cognates outside of their chosen major. In 2018, Western Michigan University’s physics department decided to take on this issue by reformatting their introductory calculus-based physics labs to include computational modeling within the labs. The labs were first run in the Fall of 2018 and then were improved in spring 2019. When …

Assessment Of Pedestrian Safety At Roundabout Slip Lanes: A Study On Design Configurations And Surrogate Safety Measures, Norran Kakama Novat

Masters Theses

The implementation of slip lanes at roundabouts has been widely adopted to improve traffic flow and reduce vehicle conflicts. However, the presence of slip lanes introduces significant risks for pedestrians, influencing vehicle speeds, merging behaviors, and increasing the potential for pedestrian-vehicle conflicts. This study investigates pedestrian safety at roundabouts with various slip lane designs, focusing on their impact on vehicle speeds, pedestrian-vehicle conflicts, and yielding behavior. Also, the study evaluates commonly used surrogate safety measures by employing extreme value models to assess their efficiency.

The study addresses two primary objectives: (1) analyzing the effects of different slip lane configurations on …

Machine Learning And Evaluation Of Diabetes Risk Using 2022 Brfss Data, Addie Weaver

Masters Theses

This research analyzes Behavioral Risk Factor Surveillance System data from 2022 with three machine learning models, Neural Network, Random Forest, and Support Vector Machine, to determine and compare the models’ accuracy rate of diabetes prediction. Principal Component Analysis was employed to determine principal factors of diabetes risk. Results show that the Neural Network is most accurate at 90.09 percent at predicting diabetes. Factors increasing diabetes risk include alcohol consumption, smoking, and self-perceived mental and physical health.

Finding Aid For The St. Philomena Catholic School Collection (Mum00822)

Archives & Special Collections: Finding Aids (alphabetical)

Scrapbook containing photographs of St Philomena Catholic School in Pass Christian, MS

Equitable Thriving: A Lifecourse Approach To Maternal And Child Health Justice, Yael Cannon

Georgetown Law Faculty Publications and Other Works

Black women are at least three times more likely to die due to a pregnancy-related cause than White women. Grave racial disparities also abound in severe maternal morbidity, or significant unexpected health consequences of labor and delivery. The Supreme Court’s decision in Dobbs v. Jackson Women’s Health Organization, eliminating the constitutional right to abortion, has only further restricted reproductive healthcare options and raised concerns that these disparities will grow even starker. Black, Indigenous, and Latine infants and children also experience unjust—and avoidable—health inequities. As a general matter, people of color are sicker across their lifespans and die younger in …

On Neutrosophic Pδs-Irresolute Functions In Neutrosophic Topological Spaces, Bishnupada Debnath, Anjan Mukherjee

Neutrosophic Systems with Applications

In general topology the notion of pds-irresolute and aδs-irresolute functions were introduced by Beceren and Noiri. In the present paper, these concepts of pδs-irresolute (briefly, Npδs-irresolute) and aδs-irresolute (briefly, Naδs-irresolute) functions are explored for the first time in neutrosophic topological spaces (NTS) as generalized version. We proved that every Naδs-irresolute function is Npδs-irresolute function but not conversely. Some characterizations, counter examples, and fundamental features are also presented. By neutrosophic pre-open, neutrosophic δ-open, and neutrosophic δ-semi-open sets, some new fundamental properties of such functions are provided. Furthermore, under Npδs-irresolute functions, the behavior of neutrosophic semi-connected, neutrosophic pre-connected, neutrosophic pre-T2, neutrosophic δ-semi-T2, …

Medium-Entropy Engineering Of Magnetism In Layered Antiferromagnet CuXNi2(1-X)CrXP2S6, Dinesh Upreti, Rabindra Basnet, M. M. Sharma, Santosh Karki Chhetri, Gokul Acharya, Md Rafique Un Nabi, Joshua Sakon, Mourad Benamara, Mansour Mortazavi, Jin Hu

Physics Faculty Publications and Presentations

Antiferromagnetic van der Waals-type M₂P₂X₆ compounds provide a versatile material platform for studying 2D magnetism and relevant phenomena. Establishing ferromagnetism in 2D materials is technologically valuable. Though magnetism is generally tunable via a chemical way, it is challenging to induce ferromagnetism with isovalent chalcogen and bimetallic substitutions in M₂P₂X₆. Here, we report co-substitution of Cu¹⁺ and Cr³⁺ for Ni²⁺ in Ni₂P₂S₆, creating Cu_xNi_2(1-x)Cr_xP₂S₆ medium-entropy alloys spanning a full substitution range ( …

The Model Of Norm-Regulated Responsibility For Proenvironmental Behavior In The Context Of Littering Prevention, Pengya Ai, Sonny Rosenthal

Research Collection College of Integrative Studies

Previous research suggests that descriptive norms positively influence proenvironmental behavior, including littering prevention. However, in some behavioral contexts, a weak descriptive norm may increase individuals’ feelings of responsibility by signaling a need for action. We examined this effect in the context of litter prevention by conducting structural equation modeling of survey data from 1400 Singapore residents. The results showed that descriptive norms negatively predicted ascription of responsibility and were negatively related to littering prevention behavior via ascription of responsibility and personal norms. It also showed that strong injunctive norms can reduce the inhibitory effect of descriptive norms on ascription of …

Here, There, And Elsewhere: Ethnicity, Identity, And Global Orientation At An Indian International School In Singapore, Emma Alexandra Grimley, Orlando Woods, Lily Kong

Research Collection College of Integrative Studies

International schools are somewhat ‘place-less’ in that their denationalised educational systems and nationally diverse student bodies are typically removed from the physical context in which each school is located. However, this placeless internationalism is complicated by international schools that also affiliate themselves with a national system or enrol a significant number of students who aspire to remain in the ‘host’ country. This paper develops the example of the Global Indian International School in Singapore to illustrate how the feeling of place is impacted by its dual orientations as both ‘Global’ and ‘Indian.’ The school attempts to (re)create an Indian schooling …

The Scale Question As An Urban Question: The Making Of Homo Urbanicus Amid State Entrepreneurialism, Yong Zhang

Research Collection College of Integrative Studies

This research bridges two influential strands of literature on urban China—state entrepreneurialism and homo urbanicus (城市人). By revisiting how China’s post-reform urban transformation has unfolded and connecting it to current development strategies, this research provides a fresh perspective on the country’s urbanization processes and their implications for future governance. The analysis proposes an alternative periodization of three phases: anti-migration urbanism, anti-settlement urbanism, and anti-civitas urbanism. Beyond understanding urbanization as a crisis-driven, state-rescaling phenomenon pivoting around the blending of state and market forces, this research repositions the concept of homo urbanicus, or the urban citizen, as central to understanding the urban …

Thermal Conductivity Characterization Of High Oleic Vegetable Oils Based Hybrid Nanofluids Formulated Using Gnp, Tio2, Mos2, Al2o3 Nanoparticles For Mql Machining, Anthony Chukwujekwu Okafor, Tobechukwu Kingsley Abor, Saidanvar Esanjonovich Valiev, Ignatius Echezona Ekengwu, Abiodun Saka, Monday Uchenna Okoronkwo

Chemical and Biochemical Engineering Faculty Research & Creative Works

This paper presents the results of thermal conductivity characterization of six high oleic soybean oil (HOSO) and four high oleic canola oil (HOCO)-Based hybrid nanofluids formulated with four types of nanoparticles (Graphene nanoplatelet (xGnP), TiO₂, MoS₂, and Al₂O₃) at nanoparticles wt.% concentration from 1 % to 7 % in 1 % increment using the two-step method for use in MQL machining of difficult-to-cut metals. Thermal conductivity of the formulated hybrid nanofluids were measured using Thermtest Transient Hot Wire Liquid Thermal Conductivity Meter at temperatures from 25 °C to 75 °C in increment …

Elucidating The Significant Roles Of Root Exudates In Organic Pollutant Biotransformation Within The Rhizosphere, Michael O. Eze, Chinedu F. Amuji

Chemistry Faculty Research & Creative Works

Biotransformation of organic pollutants is crucial for the dissipation of environmental pollutants. While the roles of microorganisms have been extensively studied, the significant contribution of various root exudates are still not very well understood. Through plant growth experiment, coupled with gas and liquid chromatography-mass spectrometry methods, this study examined the effect of the presence of M. sativa on microbial-associated biochemical transformation of petroleum hydrocarbons. The results of this study revealed that the concentration of exudates within the soil matrix is a function of proximity to root surfaces. Similarly, biodegradation was found to correlate with distance from roots, ranging from ≥ …

Dynamic Key-Based Privacy-Preserving Authentication Scheme For Internet Of Drones, Zain Chaudhary

Honors Theses

The Internet of Drones (IoD) proliferation has catalyzed transformative changes across various industries, from agriculture to urban management. However, expanding drone networks also presents significant security challenges concerning secure communication and authentication. This paper introduces a robust privacy-preserving key-based authentication scheme tailored explicitly for the IoD, utilizing a matrix key generated by Hierarchical Message Authentication Codes (HMAC) and the SHA-256 algorithm to address these vulnerabilities. Our system enhances security by ensuring each drone in the network can authenticate securely and reliably with a central unit, preventing unauthorized access and securing communications against common threats like eavesdropping and impersonation attacks. Our …

Violence In The Administrative State, Emily R. Chertoff

Georgetown Law Faculty Publications and Other Works

Drawing on an original, interview-based case study of Immigration and Customs Enforcement (ICE) and a synthesis of six decades of social science literature, this Article offers a theory of physical violence in the administrative state that challenges foundational assumptions about administrative law. Approximately one-fifth of federal employees work for administrative agencies that police, fight wars, enforce immigration law, or incarcerate people—in other words, agencies that use force to execute the laws. These agencies are saturated with administrative law that obligates front-line administrators to confer due process, give notice, behave non-arbitrarily, and comply with law. Yet this law often fails to …

Reference Dependence In Queue Design And Pricing Strategies, Jian Liu, Yongpin Zhou, Jian Chen, Peng Li

Electrical and Computer Engineering Faculty Research & Creative Works

This research investigates the effect of reference dependence on waiting times in service systems which formerly used a first-in-first-out (FIFO) service but have introduced a priority line with a fee. Our model combines reference-dependent gain-loss utility with standard customer utility, and we posit that customers are pleased with shorter-than-expected waiting times, whereas longer-than-expected times lead to dissatisfaction and an increased likelihood of balking. The study explores two scenarios: a captive customer system (CCS) and a noncaptive customer system (NCCS), with a focus on optimal pricing and segmentation strategies for revenue and social welfare maximization. The results reveal that, in a …

Understanding The Performance And Perception Of Odawa Warfare, 1615–1700, Eric P. Morningstar

Masters Theses

This research employs the ethnohistorical method to explore how the Odawa people perceived and carried out warfare from 1615 to 1700. While historians have examined the Odawa, these Native peoples have frequently not been the central focus in the secondary literature. Many primary sources also offer a vague answer as to how the Odawa conceived and carried out warfare. This study aims to clarify historiographical inconsistencies by quantitatively analyzing a database, constructed by the author, of specific primary references to known hostilities between the Odawa, other Native groups, and Europeans. The analysis includes specific variables germane to hostilities such as …

Patterns Of Activity Participation And The Well-Being Of Older Adults In Singapore, Zidane Tiew, Rachel Ngu, Yi Wen Tan

ROSA Research Briefs

Older adults participate in different types of activities and do so in varying frequencies. In this study, we utilised latent class analysis to identify underlying patterns of activity participation among the SLP respondents. We found three patterns: (i) generally active (i.e., socially, physically, and digitally active), (ii) physically and digitally active, and (iii) digitally active. Furthermore, we found that respondents who were more broadly active were more likely to experience higher levels of life satisfaction than those who were only digitally active. These respondents tended to be from higher socioeconomic backgrounds, report having better health, or had more close social …

Re-Examining Fries-Britt’S Learning Race In A U.S. Context Emergent Framework Drawing On The Micro-Level Narratives Of International Students In The Us, Mianmian Fei

Journal of Comparative & International Higher Education

No abstract provided.

The Policy And Practice Of Internationalization In The Global-South: African International Students’ Experiences In South Africa During Covid-19, Patience Mukwambo, Faith Mkwananzi, Winter Seshoka

Journal of Comparative & International Higher Education

No abstract provided.

Reinforcement Learning-Based Optimal Control Of Uncertain Nonlinear Systems, Miguel Garcia, Wenjie Dong

Electrical and Computer Engineering Faculty Publications

This paper considers the optimal control of a second-order nonlinear system with unknown dynamics. A new reinforcement learning based approach is proposed with the aid of direct adaptive control. By the new approach actor-critic reinforcement learning algorithms are proposed with three neural network approximation. Simulation results are presented to show the effectiveness of the proposed algorithms.

A Hybrid Approach Of Vision Transformers And Cnns For Detection Of Ulcerative Colitis, Syed Abdullah Shah, Imran Taj, Syed Muhammad Usman, Syed Nehal Hassan Shah, Ali Shariq Imran, Shehzad Khalid

All Works

Ulcerative Colitis is an Inflammatory Bowel disease caused by a variety of factors that lead to a serious impact on the quality of life of the patients if left untreated. Due to complexities in the identification procedures of this disease, the treatment timeline and quality can be severely affected, leading to further consequences for the sufferer. The difficulties in identification are due to high patients to healthcare professionals ratio. Researchers have proposed variety of machine/deep learning methods for automated detection of ulcerative colitis, however, several challenges exists including class imbalance problem, comprehensive feature extraction and accurate classification. We propose a …

Human Vs. Ai Counseling: College Students' Perspectives, Mohammad Amin Kuhail, Nazik Alturki, Justin Thomas, Amal K. Alkhalifa

All Works

Transitioning to college life while navigating the complexities of emerging adulthood can be stressful. In some instances, it may even lead to the onset of mental health problems or the exacerbation of existing issues. While therapeutic resources are typically available in tertiary educational contexts, social stigma may lead to service underutilization. Additionally, high student-to-therapist ratios can create bottlenecks to access when such services are sought. Offering an adjunct to traditional campus counseling services, AI chatbots can potentially address such issues. Chatbots can provide flexible, accessible, anonymous, and cost-effective first-line support, improving access and extending traditional treatment methodologies. This study evaluates …

United States Fish And Wildlife Service Response To The Office Of Science And Technology Policy Memo, 2022: Public Access Plan (December 2024)

Copyright, Fair Use, Scholarly Communication, etc.

FWS response to OSTP memo, 2022: Public Access Plan (December 2024)

United States Department Of Defense Response To The Office Of Science And Technology Policy Memo, 2022: Public Access Plan (December 2024)

Copyright, Fair Use, Scholarly Communication, etc.

DOD response to OSTP memo, 2022: Public Access Plan (December 2024)

Acf Response To Ostp Memo, 2022: Public Access Plan (December 2024)

Copyright, Fair Use, Scholarly Communication, etc.

ACF response to OSTP memo, 2022: Public Access Plan (December 2024)

Empowering Community Leaders To Drive Sustainable Tourism And Small Business Development In Dangriga, Belize, Philip Nunez

Economics Undergraduate Honors Theses

This paper discusses the complexities of tourism development in Dangriga, Belize and how simple efforts can greatly impact small businesses in Central America.

Exploring The Capabilities Of Classifier-Free Guidance In Recommendation Tasks, Noah Buchanan

Graduate Theses and Dissertations

This thesis addresses the problem of recommending items to users based on their ratings of items through a diffusion recommender system. Regular recommender systems are already capable of efficient recommendation through conventional methods such as collaborative or content-based filtering. Diffusion is a new type of generative AI that aims to improve our previous AI's shortcomings in the generative domain, like Variational Autoencoders (VAEs) and Generative Adversarial Networks (GANs). We use diffusion to create a recommender system that mirrors the sequence users take when browsing and rating items. The current methods of recommendation with diffusion do not use the new innovation …