Digital Commons Network^™

Dendrite-Free Strategies For Aqueous Zinc-Ion Batteries: Structure, Electrolyte, And Separator, Gang Wu, Wu-Hai Yang, Yang Yang, Hui-Jun Yang

Journal of Electrochemistry

Continued growth in energy demand and increased environmental pollution constitute major challenges that need to be addressed urgently. The development and utilization of renewable, sustainable, and clean energy sources, such as wind and solar, are crucial. However, the instability of these intermittent energy sources makes the need for energy storage systems increasingly urgent. Aqueous zinc-ion batteries (AZIBs) have received widespread attention due to their unique advantages, such as high energy density, cost-effectiveness, environmental friendliness, and safety. However, AZIBs face significant challenges, mainly the formation of zinc dendrites that seriously affect the stability and lifetime of the batteries, leading to battery …

Molecular Sentinels: Unveiling The Role Of Sirtuins In Prostate Cancer Progression, Surbhi Chouhan, Naoshad Muhammad, Darksha Usmani, Tabish H Khan, Anil Kumar

2020-Current year OA Pubs

Prostate cancer (PCa) remains a critical global health challenge, with high mortality rates and significant heterogeneity, particularly in advanced stages. While early-stage PCa is often manageable with conventional treatments, metastatic PCa is notoriously resistant, highlighting an urgent need for precise biomarkers and innovative therapeutic strategies. This review focuses on the dualistic roles of sirtuins, a family of NAD+-dependent histone deacetylases, dissecting their unique contributions to tumor suppression or progression in PCa depending on the cellular context. It reveals their multifaceted impact on hallmark cancer processes, including sustaining proliferative signaling, evading growth suppressors, activating invasion and metastasis, resisting cell death, inducing …

Cancer Organoids As Reliable Disease Models To Drive Clinical Development Of Novel Therapies, Giovanni Blandino, Ronit Satchi-Fainaro, Ingeborg Tinhofer, Giovanni Tonon, Sarah C Heilshorn, Ana Pestana, Luca Pompili, Aurora Puce, Sara Iachettini, Annalisa Tocci, Sofia Karkampouna, Marianna Kruithof-De Julio, Piera Tocci, Nicla Porciello, Klizia Maccaroni, Daniela Rutigliano, Xiling Shen, Gennaro Ciliberto

Faculty, Staff and Student Publications

On September 23-24 (2024) the 6th Workshop IRE on Translational Oncology, titled "Cancer Organoids as Reliable Disease Models to Drive Clinical Development of Novel Therapies," took place at the IRCCS Regina Elena Cancer Institute in Rome. This prominent international conference focused on tumor organoids, bringing together leading experts from around the world.A central challenge in precision oncology is modeling the dynamic tumor ecosystem, which encompasses numerous elements that evolve spatially and temporally. Patient-derived 3D culture models, including organoids, explants, and engineered or bioprinted systems, have recently emerged as sophisticated tools capable of capturing the complexity and diversity of cancer cells …

Agfi-Gan: An Attention-Guided And Feature-Integrated Watermarking Model Based On Generative Adversarial Network Framework For Secure And Auditable Medical Imaging Application, Xinyun Liu, Ronghua Xu, Chen Zhao

Michigan Tech Publications

With the rapid digitization of healthcare, the secure transmission of medical images has become a critical concern, especially given the increasing prevalence of cyber threats and data privacy breaches. Medical images are frequently transmitted via the Internet and cloud platforms, making them susceptible to unauthorized access, tampering, and theft. While traditional cryptographic techniques play a vital role, they are often insufficient to fully ensure the integrity and confidentiality of these sensitive images. In this paper, we present AGFI-GAN, a robust and secure framework for medical image watermarking that leverages attention-guided and Feature-Integrated mechanisms within a Generative Adversarial Network (GAN). Specifically, …

Spectral Differencing Of Glories Reflects Cloud Droplet Size Distribution, Ilan Koren, Alex Kostinski, Uri Wollner

Michigan Tech Publications

The glory, a striking optical phenomenon seen from space in unpolarized satellite images can be mapped onto the cloud's droplet sizes with a characteristic scale of 10 (Formula presented.). Such a mapping allows us to infer the mean and variance of the cloud droplets' radius, an important property that has remained elusive and inaccessible to passive unpolarized satellite sensing. Here, we propose a simple and robust polarization-like differential approach to map the glory's spectral properties to the desired moments of the droplet size distribution. By taking the differences between two spectrally close channels, we reduce multiple scattering contributions and amplify …

Refinement Of An Algorithm To Detect And Predict Freezing Of Gait In Parkinson Disease Using Wearable Sensors, Allison M Haussler, Lauren E Tueth, David S May, Gammon M Earhart, Pietro Mazzoni

2020-Current year OA Pubs

Freezing of gait (FOG) is a debilitating symptom of Parkinson disease (PD). It is episodic and variable in nature, making assessment difficult. Wearable sensors used in conjunction with specialized algorithms, such as our group's pFOG algorithm, provide objective data to better understand this phenomenon. While these methods are effective at detecting FOG retrospectively, more work is needed. The purpose of this paper is to explore how the existing pFOG algorithm can be refined to improve the detection and prediction of FOG. To accomplish this goal, previously collected data were utilized to assess the prediction ability of the current algorithm, the …

Modeling Heat Flux Effects On Spacecraft At Atmospheric Re-Entry, Khalid Ayoola, Carson Running

Mechanical Engineering Student Publications

Spacecraft re-entry involves complex thermal and fluid dynamic interactions that critically impact vehicle design and survival. This research investigates heat flux dynamics during atmospheric transition, utilizing the Fay-Riddell equation to model heat transfer through spacecraft surfaces under varying conditions of altitude, Mach number, and nose radius. Key findings reveal that heat flux decreases exponentially with altitude, increases with velocity, and varies significantly with geometric configuration. The analysis demonstrates heat flux ranges from 3.21 × 10^4 W/m^2 with a 3m nose radius at Mach 10 and 30km altitude to 8.32 × 10^6 W/m^2 with a 0.1m nose radius at ground level, …

Gravitational Water Vortex Generator, Lance Roadifer, Carson Running

Mechanical Engineering Student Publications

No abstract provided.

Assessment Of Coffee Yields Using Unmanned Aerial Vehicle Techniques, Sawitree Chansing

Journal of Letters

The objective of this research is to study factors related to coffee yields and to develop a model for assessing the productivity of Arabica coffee based on data obtained from unmanned aerial vehicle (UAV) in Ban San Charoen, Tha Wang Pha District, Nan Province, during the 2021-2022 harvest seasons. The researchers used variables which are plant height, canopy size, trunk circumference, and visible atmospherically resistant index (VARI). These variables are related to coffee yields using linear regression analysis and evaluated statistical reliability using the coefficient of determination (R2), and the root mean square error (RMSE) were employed. The research findings …

New York Times V. Sullivan: A Civil Rights Story, Samantha Barbas

Texas A&M Law Review

The 1964 Supreme Court decision in New York Times v. Sullivan established the “actual malice” rule in libel law, requiring that in order to win a libel suit, a public official must show that a defamatory statement was false and that the speaker made the statement knowing that it was false or “with reckless disregard of whether it was false or not.”

Sullivan involved a libel suit brought by segregationist Alabama officials against the New York Times (“Times”) and leaders of the civil rights movement. Sullivan arose from sectional battles over civil rights and integration in the 1960s. An all-white …

Factors Affecting Waiting Times To Enter Opioid Use Disorder Treatment In The United States With A Particular Focus On Potential Biological Sex Disparity, Stanley Nkemjika, Kenneth Oforeh, Connie Olwit, Olaniyi Olayinka, Terence Tumenta

Department of Psychiatry and Human Behavior Faculty Papers

AIM: Opioid use disorder (OUD) is the problematic use of licit or illicit opioids. Thus far, the literature on biological sex differences in accessing treatment is scarce. Hence, we hypothesize that biological sex has a moderating effect on OUD treatment accessibility. We aim to explore biological sex differences in treatment disparities and its role in wait time to enter OUD treatment.

METHOD: Using the 2018 Treatment Episode Data Set Discharge, the national sample representative of OUD patients in the substance use disorder treatment facilities within the 50 states of the United States was 382,547. Univariate and multivariable logistic analysis of …

Effects Of Pollution On The Flow Of The Gowanus Canal, Eleanore Dzija, Carson Running

Mechanical Engineering Student Publications

This paper explores how pollution affects the flow of the Gowanus Canal. Four scenarios are modeled to represent different phases of pollution remediation: no remediation, dredging and capping of the canal bottom, combined sewer overflow capture, and dredging and capping with combined sewer overflow capture. Dredging and capping of the canal bottom resulted in the greatest increase in velocity. Dredging and capping with combined sewer overflow capture resulted in the greatest decrease in pressure. This indicates that dredging and capping of the canal bottom may be the most efficient pollution remediation strategy and should be the focus of the cleanup …

The Effect Of Temperature On Power Output From A Hydroelectric Penstock, Taylor Hartell, Carson Running

Mechanical Engineering Student Publications

Hydroelectric power is a form of renewable energy that uses the power from water to generate electricity. One of the ways this is done is by diverting water from a river with a penstock leading to a turbine. Hydroelectric systems rely on water as the source of power, and the viscosity of water varies with temperature. When temperatures are low, viscosity is high, and when temperatures are high, viscosity is low. Other works have studied the optimal dimensions of penstocks for power generation and the effect of hydroelectric power on river temperatures. In this research, the effect of temperature on …

Comparative Study Of Aerodynamic Characteristics Of Standard And Dimpled Naca 0012 Airfoil, Fahim Shahriyar, Carson Running

Mechanical Engineering Student Publications

This study analyzes the aerodynamic performance of a NACA 0012 airfoil with dimples on its upper surface, comparing it to the standard configuration. Using the Navier-Stokes equations, Blasius solutions, the k-ε turbulence model, and ANSYS Fluent, steady-state incompressible flow was simulated at 25 m/s across angles of attack from -20° to +20°. Results show the standard airfoil performs well at the low Reynolds number and lower angle of attack. The inward dimple airfoil reduces drag at negative angles, while the outward dimple airfoil enhances lift at higher positive angles. Shear stress analysis reveals laminar flow on flat plates and turbulent …

Environmental Assessment Of The Level Of Concentration Of Nickel And Lead In The Soil Of River Basins In The Samawa District, Turki Attia Tayeh, Anwar Sabah Muhammad

Uruk Journal of Human Sciences

The current study concluded by evaluating the level of concentration of nickel (Ni) and lead (Pb) in the soil of the river basins of Samawah District, north of Muthanna Governorate. Soil samples were taken from (12 sites) to two depths (0-30 cm) and (31-60 cm), in addition to the site (CP). (In the soil of the banks of the Euphrates River as a reference area for comparison and analysis purposes, the soil texture, its apparent and real density, and the percentage of porosity were measured. The research aims to determine the reasons for the high values ​​of the elements nickel …

Iraqi Efl College Learners’ Performanceof Adjective Placement Order, Hisham Adnan Almumar, Muhtaram Abdulwahid Al-Owaidi

Uruk Journal of Human Sciences

This paper deals with the preferable order of adjectives as one of the open classes in English grammar where various adjectives describe a following noun or pronoun. It also tends to identify the students' perception of the placement of patterns of adjectives. The problem of this study lies precisely in the sense that this subject may cause difficulty for Iraqi students in ordering multiple successful adjectives in a spoken or written form of the language. For this reason, it accounts for the causes of the dominant errors made by the undergraduates and their sources. To evaluate the student's strengths and …

Shark Skin Riblet Microstructures: An Oceanic Solution To Reduce Shear Wall Stress And Skin Friction, Ashyln Veitz, Carson Running

Mechanical Engineering Student Publications

Minimizing energy consumption and its associated costs is a key priority in engineering. Potential solutions are found in nature, particularly the skin of the shortfin mako shark. The riblet microstructures have been shown to reduce drag, offering a promising method for energy reduction in various industries. This study investigates the effectiveness of riblet microstructures in reducing wall shear stress and skin friction in laminar flow. The flow over a flat plate is compared with flow over a riblet-structured surface, considering the impact of the temperature of the fluid. Results show that as temperature increases, shear wall stress and skin friction …

An Analysis Of Flow Properties Of Shock Tube Boundary Layer, Cheyenne Harrison, Carson Running

Mechanical Engineering Student Publications

Ice crystal behaviors in the upper atmosphere are very unknown and under-researched, leaving them a mystery as to how they might interact with objects traveling through this region. Currently the University of North Dakota Aerosol Engineering Laboratory is creating an experiment to drop an ice crystal through a vale on a shock tube. This project aimed to solve for properties of the air flow traveling through the shock tube to see how it might affect the falling ice crystal. These properties included Reynolds number, boundary layer thickness, wall shear stress, and velocity contours of the boundary layer. Through Excel and …

The Effects Wind Has On Ocean Current Speeds For Marine Renewable Energy Applications, Parkerjay Hoaglund, Carson Running

Mechanical Engineering Student Publications

This paper explores the influence of wind on ocean current speeds at varying depths and its implications for marine renewable energy systems, particularly underwater turbines. By analyzing the fluid mechanics of ocean currents and applying the Navier-Stokes equations under simplified assumptions, velocity and pressure profiles were developed to model the interaction between wind and water. The research highlights the dependence of ocean current velocity on wind speed and depth, demonstrating that maximum current speeds and power generation potential occur near the ocean surface. Using MATLAB simulations, power generation by an underwater turbine was analyzed under varying wind speeds and depths, …

Airflow Over Nasa’S X-59, Quiet Supersonic Technology (Quesst), Laina Behrenbrinker, Carson Running

Mechanical Engineering Student Publications

The X-59 QueSST is an experimental aircraft that will reach supersonic speeds without producing a loud sonic boom. Those on the ground will hear something like distant thunder as the X-59 passes overhead, around 75 dB. This paper studies the pressure distribution over the nose of the X-59 and the Sound Pressure Level (SPL) on the surface of the X-59 nose (1/3 of the total vehicle length) to better understand how sound propagates through the atmosphere. The resulting SPL over the aircraft nose is 180 – 190 dB, and further the SPL on the ground is calculated to be 43-53 …

Breaking The Sound Barrier: Exploring Ramjet Inlet Dynamics, Daniel Early, Carson Running

Mechanical Engineering Student Publications

This study investigates the impact of varying density, x location, and Mach number on key aerodynamic parameters of a ramjet inlet spike. Density plays a crucial role in equations for Reynolds number, boundary layer thickness, shear stress, coefficient of friction, and coefficient of drag. By keeping all other variables constant and increasing density, an increase in Reynolds number, a decrease in boundary layer thickness, and a decrease in the coefficient of drag was observed. Additionally, the x location along the ramjet inlet spike was analyzed to determine its effects on these parameters. With an increase in x, Reynolds number and …

Unh's Connell Recognized For His U.S. Patent, Brooks Payette

UNH Today Archive

No abstract provided.

The Role Of The Marsad Contract In Rehabilitating Degraded Awqaf Lands- Innovative Waqf Projects, Ahmed Dib

Journal of King Abdulaziz University: Islamic Economics

This research is part of an active endeavor to develop endowment (waqf) properties and strengthen confidence in their economic and social potential. It explores the concept of "Marsad contract" as One of the most significant developmental mechanisms that can be adopted for the reconstruction and restructuring of endowment lands.Marsad (designated money) is a debt owed at the endowment, where the lessee invests their own funds with the permission of the administrator of the endowment (Nazir) to develop the essential endowment properties. It is a specialized form of lease that combines two transactions: firstly, a debt owed to the endowment represented …

Love As A Commitment Device : Evidence From A Cross-Cultural Study Across 90 Countries, Marta Kowal, Adam Bode, Karolina Koszałkowska, S. Craig Roberts, Biljana Gjoneska, David Frederick, Anna Studzinska, Dmitrii Dubrov, Dmitry Grigoryev, Toivo Aavik, Pavol Prokop, Caterina Grano, Hakan Çetinkaya, Derya Atamtürk Duyar, Roberto Baiocco, Carlota Batres, Yakhlef Belkacem, Merve Boğa, Nana Burduli, Ali R. Can, Razieh Chegeni, William J. Chopik, Yahya Don, Seda Dural, Izzet Duyar, Edgardo Etchezahar, Feten Fekih-Romdhane, Tomasz Frackowiak, Felipe E. García, Talia Gomez Yepes

School of Psychology

Given the ubiquitous nature of love, numerous theories have been proposed to explain its existence. One such theory refers to love as a commitment device, suggesting that romantic love evolved to foster commitment between partners and enhance their reproductive success. In the present study, we investigated this hypothesis using a large-scale sample of 86,310 individual responses collected across 90 countries. If romantic love is universally perceived as a force that fosters commitment between long-term partners, we expected that individuals likely to suffer greater losses from the termination of their relationships—including people of lower socioeconomic status, those with many children, and …

Enriched Microbial Consortia From Natural Environments Reveal Core Groups Of Microbial Taxa Able To Degrade Terephthalate And Terphthalamide, Laura G. Schaerer, Sulihat Aloba, Emily Wood, Allison Olson, Isabel B. A. Valencia, Rebecca Ong, Stephen Techtmann

Michigan Tech Publications

Millions of tons of polyethylene terephthalate (PET) are produced each year, however only ~30% of PET is currently recycled in the United States. Improvement of PET recycling and upcycling practices is an area of ongoing research. One method for PET upcycling is chemical depolymerization (through hydrolysis or aminolysis) into aromatic monomers and subsequent biodegradation. Hydrolysis depolymerizes PET into terephthalate, while aminolysis yields terephthalamide. Aminolysis, which is catalyzed with strong bases, yields products with high osmolality, which is inhibitory to optimal microbial growth. Additionally, terephthalamide, may be antimicrobial and its biodegradability is presently unknown. In this study, microbial communities were enriched …

A Comparative Analysis Of The County-Level Covid-19 Lockdown’S Impact On Child Sexual Abuse Rates, Aunastasia Fantasia Marie Zsidiewicz

Walden Dissertations and Doctoral Studies

National reported rates of childhood sexual abuse (CSA) during the COVID-19 pandemic lockdown were significantly lower than expected. This quantitative study explored rates of CSA before and after the lockdown for 22 Michigan counties by considering socioeconomic status (SES) demographics to isolate the lockdown’s specific impact on reported CSA rates. The SES of the counties was measured using the Kuppuswamy scale, a numerical compilation of the mean occupation, education, and income of households within a given county. The Social Determinants of Health framework provided a blueprint for understanding the impact of exploring the different socioeconomic variables. This framework also helped …

Association Among Student Retention And Program Utilization Within An Independent Community College In Northeastern New Mexico, Geno Castillo

Walden Dissertations and Doctoral Studies

The problem investigated in this study was the trend of decreasing student retention of first-year, degree-seeking college students at an independent community college located in northeastern New Mexico. The purpose of the study was to examine the association between student retention and program utilization. The research question was to determine if statistically significant differences existed between first-year students at an independent community college in northeastern New Mexico who did and did not utilize government-funded tutoring programs, which is a peer-led program managed by the Center for Academic Excellence. The theoretical foundation for the study was Tinto’s student retention theory model. …

Effectives Strategies Leaders Use To Engage Nurses In Safe Work Practices, Madeline Ortiz Gonzalez

Walden Dissertations and Doctoral Studies

Work-related injuries remain a significant challenge in the healthcare sector, leading to reduced productivity and financial losses despite improvements in workplace safety. Healthcare leaders are concerned that unsafe work practices negatively affect organizational performance and service quality. Grounded in Burn’s transformational leadership framework, the purpose of this qualitative pragmatic inquiry study was to explore effective strategies used by six nurse leaders in Southern United States use to encourage nurses to adopt safe work practices and foster a culture of safety. Through thematic analysis, three core themes were identified: implementing comprehensive training programs, establishing effective communication channels, and fostering a safety-first …

The Lived Experiences Of Black College Students And Counseling Based Upon Social Media Influences, Shamanda Burston

Walden Dissertations and Doctoral Studies

Despite social media's use as a tool for social influence and increase in mental health disclosures within Black communities, limited literature describes how Black college students, specifically, are utilizing social media related to mental health. This qualitative study includes a description of the influence of social media on the perception of counseling services for Black college students. Using interpretative phenomenological analysis (IPA) through the lens of Kelman's social influence theory, the influence of social media on Black college students' perception of counseling services was explored. Currently enrolled Black or African American college or university students within the United States, over …

Perceptions Of The Skills Gap In Career And Technical Education In An Urban School District, Kyna Monic Eberhardt

Walden Dissertations and Doctoral Studies

A gap in career and technical education (CTE) skills can negatively influence outcomes for students who plan to enter the workforce or college following high school graduation. The purpose of this qualitative case study was to explore the perceptions of principals, counselors, teachers, and business leaders from different industries, about the skills gap among CTE students and their preparation for the workforce or college. Kathuria’s organizational alignment theory grounded this study. For this case study design, semistructured interviews were conducted with nine participants purposively selected from each stakeholder group: principals, counselors, teachers, and business leaders from different industries. All participants …