Digital Commons Network^™

Study Of Microstructural Defects Of Drill Bit Teeth Using Microscopic Methods, Odiljon E. Abdurakhmonov, Mastura Kh. Aripova, Orifjon O. Khomidov, Bakhtiyar T. Zakhidov, Amir I. Abidov

CHEMISTRY AND CHEMICAL ENGINEERING

The aim of this study is to investigate microstructural defects in drill bit cutting elements, including milled teeth and WC–Co cemented carbide inserts, to clarify their morphology, chemical–phase characteristics, and potential contribution to manufacturing-related defects. To achieve this goal, the study applied a combined approach based on optical microscopy and scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy (SEM–EDS). First, the study examined surface and microstructural features, such as pores, depressions, and local heterogeneities formed during manufacturing. Then, it conducted detailed SEM–EDS analyses of selected local regions, including crack initiation sites. As a result, the study revealed that cutting elements …

Sorption Of Lanthanum(Iii) Ions On Impregnated Solid Extractants, Jaloliddin Q. Abdurashidov, Tadjigul R. Odamova, Maksim A. Kamarou, Zuhra Ch. Kadirova, Shahlo Sh. Daminova

CHEMISTRY AND CHEMICAL ENGINEERING

The aim of this work was to obtain solid extractants by impregnating the organic reagent 1-phenyl-1,3-butadione (BNA) onto carriers based on styrene-divinylbenzene copolymers (PAD600, PAD400) as well as activated carbon, and to investigate the sorption isotherms of La³⁺ ions under static conditions. The structure of the sorbents before and after La³⁺ ion sorption was studied using SEM-EDX and IR spectroscopy. The parameters of sorption extraction of La³⁺ ions, including extraction degree, sorbent capacity, and distribution coefficient, were evaluated. It was established that the PAD600-BNA sorbent exhibits the most favorable sorption properties toward La³⁺ ions.

Two-Stage Heat Treatment For Producing Highly Crystalline H-Bn Nanoparticles From Boric Acid And Urea, Sherzod E. Abdurakhmonov, Mastura Kh. Aripova, Umar A. Yakhyaev, Shoxrux B. Naimov, Odiljon E. Abdurakhmonov

CHEMISTRY AND CHEMICAL ENGINEERING

The purpose of the study was to investigate the formation of the crystal structure of hexagonal boron nitride (h-BN) nanoparticles obtained by the chemical-thermal method using two-stage heat treatment. Boric acid and urea were used as starting precursors, enabling ammonia-free synthesis conditions. It is shown that the first thermal stage at 600 °C under a nitrogen atmosphere leads to the formation of a predominantly amorphous BN-containing precursor, whereas the second stage at 1000 °C in an N₂/H₂ atmosphere promotes crystallization of a highly ordered hexagonal h-BN phase. The morphology and particle size distribution were examined by transmission …

Structure And Morphology Of Ultradispersed Erbium Ytterbium Oxide Powders Obtained By Deposition Method, Eygeniy N. Poddenezhny, Andrei A. Boiko, Natalya E. Drobyshevskaya, Vladimir S. Urbanovich, Ekaterina E. Trusova

CHEMISTRY AND CHEMICAL ENGINEERING

The aim of research is to develop a new method for synthesis of ultra-dispersed crystalline powders of lanthanide oxides, in particular, erbium oxide doped with ytterbium oxide, intended for making transparent ceramics. The formation of nanostructured powders of the erbium oxide – ytterbium oxide system using deposition and heat treatment processes by co-deposition of salt solutions mixed with ammonium carbonate and hydrogen peroxide complex solution at temperature of 10 °C followed annealing at 100, 650, 900 and 1200°C was studied. Studies of the morphological and structural characteristics of the powders using scanning electron microscopy and X-ray phase analysis showed that …

Effect Of Variety And Seaweed Extract Spray In The Content Of Some Medically Active Phenolic Compounds In Grape Fruits, Ali Ahmed Hussein Almyali, Salim Kadhim, Ali S. Hassoon, Ameer Al Fatlawy

Al-Bahir

Grape (Vitis vinifera L.) is one of the most economically significant fruit crops which has a large adaptive range, nutrition and medicine effect. A variety of 70 types of grapes are planted on more than 11.6 million plants in Iraq, generating a total annual output of more than 421,000 tons. Increasing grape quality, and particularly the phenolic composition recently has been of major interest. Leaf nutrition – particularly seaweed extracts, being rich in amino acids, trace elements and growth promoting substances – has proved to be a potential tool to enhance plant growth and fruit biochemical quality. The …

Classification Of Land Cover In Sentinel-2 Imagery Using Machine Learning Models, Ehsan Ali Al-Zubaidi, Mohammed Ridha Hammoodi, Ahmed Naser Alzurfi

Al-Bahir

Remote sensing data of medium resolution are commonly used to classify land cover, and machine learning (ML) models have taken on a central aspect in the necessary data analysis. Ordinarily, land cover is coded on a pixel basis on the basis of Digital Number (DN) values, which in turn are computed across several spectral bands. This paper is concerned with land cover mapping in Mosul, Iraq, based on satellite images captured by Sentinel-2. Two platforms featuring unsupervised classification algorithms were used, Google Earth Engine and ArcMap, making it possible to use K-means and X-means in Google Earth Engine and ISO …

Early Sepsis-Recognition Simulation Training: An Evidence-Based Initiative, Blanca A. Zavala

SACAD: Scholarly Activities

Sepsis is a life-threatening condition that requires rapid recognition and intervention to prevent poor patient outcomes. Delays in identification remain a significant concern for patient safety, particularly among nurses and nursing students who may lack confidence and clinical judgment in early sepsis recognition (Marsack et al., 2022). This evidence-based practice project aimed to examine the existing evidence on sepsis education and evaluate the effectiveness of simulation-based learning in improving clinical judgment and sepsis recognition, with the goal of informing a potential sepsis training initiative for nursing students.

A literature review of six peer-reviewed studies (2022–2026) was conducted using the PubMed …

Measuring Multimodal Equity In Resource-Challenged Mpos, Christopher Ferrell, David Reinke, John M. Eells

Mineta Transportation Institute

Ensuring transportation investments are equitable across different populations and travel modes is a priority for many agencies, yet existing tools often make these assessments difficult, especially for smaller and resource-constrained organizations. To address this gap, this report provides the findings of Phase II of our study on reviewing and developing transportation equity metrics. The Phase I project investigated transit equity metrics and provided recommendations on advancements in quantitative methods. Building on Phase I recommendations, this study investigates low-cost methods for comparing the equity between auto (roadway) and transit performance or investments for low resource transportation agencies. A literature review revealed …

Cardozo Law News Brief: March 27, 2026, Benjamin N. Cardozo School Of Law

Cardozo Law News Briefs

Highlights from the March 27, 2026, Cardozo Law News Brief include:

• Professor Rachel Landy was quoted in the Los Angeles Times and Newsweek on a Supreme Court ruling limiting internet providers’ liability for copyright infringement, noting the music industry may need to seek legislative solutions.
• Sarah Chu, Director of Policy & Reform at the Perlmutter Center for Legal Justice, spoke to Undark about a new study challenging the reliability of firearms analysis in forensic science.
• Professor Peter Markowitz was quoted in NewsNation on the rise of no-bond ICE detention cases and the growing number of successful legal challenges.
• Professor …

The Daily Gamecock: March 2026, University Of South Carolina, Office Of Student Media

2026

No abstract provided.

The Minutes Of The Marshall University Graduate Council Meeting, March 27, 2026, Marshall University Graduate Council

Graduate Council Minutes

No abstract provided.

Assessment Of Routine, On-Demand Electroencephalograms For Seizure Detection In The Intensive Care Unit Of A Major Saudi Tertiary Center, Abdulrahman Yousef Aldayel, Homoud Alsahli, Rawabi Alhathlool, Afag Osman, Sonia Khan, Mohammed T. Alshahrani

Neurosciences

Objectives: To investigate the occurrence and characteristics of seizures using routine electroencephalograms (EEGs) in intensive care unit (ICU) patients.

Methods: We conducted a retrospective analysis on routine, portable EEGs of 188 adult ICU patients (53% male) in a large tertiary hospital in Riyadh, Kingdom of Saudi Arabia. We compared variables of interest using a t-test and chi-squared analyses and explored significant associations using binary logistic regression analysis.

Results: We found significant associations between the occurrence of seizures on EEGs and several variables, including patient age, ICU admission due to status epilepticus, history of epilepsy or previous neurosurgical procedure, coma state, …

Interview With Orca Award Winner David Forsythe, Unl Political Science; International Human Rights, Mark A. Griep, David Forsythe

UNL ORCA Interview Series

Prof. David Forsythe was awarded the ORCA in 1982. He was born in North Carolina and earned a bachelor’s in political science from Wake Forest University in Winston-Salem. Next, he earned a master’s and doctorate in Politics from Princeton University in New Jersey. In 1973, he joined UNL as an associate professor of political science and was soon promoted to full professor. In 1993, he became chair of his department and received the Charles J. Mach Distinguished Professorship of Political Science. He has authored, co-authored, or edited about 30 books on was International Human Rights, Law, and Politics, and has …

The Current - Volume 36 Issue 8, Nova Southeastern University

Student Newspapers

No abstract provided.

Essays On Monetary-Fiscal Interactions In Emerging Market And Developing Economies, Ojasvita Bahl

Doctoral Theses

This thesis contains three chapters on monetary-fiscal interactions in Emerging Market and Developing Economies. Governments in emerging markets and developing economies (EMDEs) frequently intervene in agricultural markets to stabilize food prices following adverse shocks. These interventions often take the form of large-scale food procurement and redistribution, which we define as a redistributive policy shock. This chapter examines the effects of such shocks on inflation and the distribution of consumption between rich and poor households. We develop a tractable two-sector, two-agent New Keynesian DSGE model and estimate its parameters for the Indian economy using Bayesian methods. Our findings reveal that under …

Nurse Educators’ Understanding Of Social Justice As A Core Professional Value, Julie Larson, Msn, Rn

College of Nursing Posters

Background

• Health disparities persist along socially constructed lines
• Equity and social justice are prioritized as core values in The Essentials¹ and The Future of Nursing², yet social justice in nursing remains “abstractly defined and poorly operationalized”³ 
• Growing social determinants of health (SDoH) focus in nursing education with limited attention to structural causes

Key literature findings:

• Limited curricular inclusion of social justice; unclear understanding of student learning ^4,5,6
• Faculty hesitancy; lack of preparation to teach equity/social justice content ^7,8
• Predominance of Whiteness in nursing education ^9,10

Qualitative Analysis Of Emotion Schemes Theory Of Compassion Satisfaction In Emotion - Focused Therapy, Bronislava Šoková, Lenka Janík Blašková, Katarína Greškovičová, Júlia Halamová

The Qualitative Report

There is little to no research focused on the qualitative understanding of compassion satisfaction among helping professionals, despite the demanding nature of the profession. Our aim was to examine how helping professionals experience compassion satisfaction through the lens of emotion scheme theory applied in emotion-focused therapy. Eight helping professionals were randomly selected from the pool of 29 participants representing a convenience sample, with the age range from 20 to 44 years. Data were collected via online in-depth interviews with open-ended questions concerning emotion scheme of their intense experience of compassion satisfaction. To analyze the data, phenomenology and consensual qualitative analysis …

Senior Recital: Joe Brackmann, Cello; March 27, 2026, Joe Brackmann, Momoko Gresham

School of Music Programs

This is the one hundred and twenty-fifth program of the 2025-2026 season.

Kemp Recital Hall

March 27, 2026

Friday Evening

7:30 p.m.

March 27, 2026 Ereporter, University Of Alabama At Birmingham

eReporter (campus newsletter)

No abstract provided.

Prescription Tradeoff Decision Support For Pancreas Stereotactic Body Radiation Therapy: From Templates To Artificial Intelligence Models, Yibo Xie, Manisha Palta, Ruilin Li, Wentao Wang, Qiuwen Wu, Yaorong Ge, Q. Jackie Wu, Yang Sheng

Department of Radiation Oncology Faculty Papers

Objective: To develop an artificial intelligence (AI) driven plan tradeoff decision making assistant for radiation oncologists. Methods: A user interface (UI) was developed to integrate the assistant with the treatment planning system to facilitate prescription decision process. The assistant is powered by a machine learning core which was trained to learn the balance between planning target volume (PTV) coverage and organs-at-risk (OAR) sparing. A group of 98 pancreatic stereotactic body radiation therapy (SBRT) cases were retrospectively included for this study. The clinical plan's PTV coverage was compared against the model predicted value. A 10-fold cross validation was performed for all …

V3 Interneurons In Spinal Cord Injury Mouse Model: Mapping The Circuit And Roles In Locomotion, Tugba Ulman, Marin Manuel, Rebecca Manuel

Poster Presentations

No abstract provided.

The Contributions Of Neutrophil Extracellular Traps In Vasculopathies Of Cerebral Amyloid Angiopathy, Dakota Hunter, Riley Sullivan, Joseph Schrader

Poster Presentations

Cerebral amyloid angiopathy (CAA) is a cerebrovascular disorder characterized by the progressive deposition of amyloid-β (Aβ) peptides within the walls of small to medium-sized cerebral blood vessels. As a prevalent comorbidity of Alzheimer's disease, CAA disproportionately affects the aging population, with an estimated 25% of individuals over 50 and approximately 50% of those over 80 exhibiting moderate to severe pathology. The condition is clinically significant due to its strong associations with microbleeds, intracranial hemorrhage, and cognitive decline. At the molecular level, Aβ accumulation arises from the irregular cleavage of amyloid precursor protein (APP), disrupting vascular integrity and triggering downstream pathological …

Adaptive Capacity Of Rhode Island Commercial Lobstermen: An Analysis Of Ecosystem Shift Impacts From Warming Waters, Jocelyn Miller

Poster Presentations

Warming waters and declining catch have significantly impacted Rhode Island’s commercial lobster industry. As ocean conditions shift, new species such as black sea bass are moving northward, increasing predation on juvenile lobsters and intensifying ecological competition. The warming water also increases the percentage of lobsters experiencing a fatal bacterial disease called Epizootic Shell Rot Disease. These environmental pressures, combined with trap reductions implemented in response to the Southern New England lobster stock collapse, have forced many lobstermen out of the industry. At this point, lobstermen need to decide how to adapt by strengthening their adaptive capacity strategies to stay in …

Residential Life As An Equity Strategy For First-Year Persistence Among First-Generation, Low-Income, And Racially Minoritized Students, Joshua Kwaku Addai

Poster Presentations

Despite decades of research on student retention, first-year attrition continues to disproportionately affect first-generation, low-income, and racially minoritized students. Institutional responses have largely emphasized financial aid, advising reform, and classroom-based interventions. However, students spend much of their first year within residential environments; spaces that profoundly shape belonging, identity development, and daily engagement. This study argues that residential life is not merely a housing function but a critical, and often underexamined, site of equity-driven student persistence. Drawing on Tinto’s theory of academic and social integration and Museus’s Culturally Engaging Campus Environments (CECE) model, this literature review synthesizes interdisciplinary research to examine …

A Universal Influenza Vlp Vaccine Built On Conserved Antigens, Labone Akter, Yibo Li, Xinyuan Chen

Poster Presentations

The ectodomain of matrix protein 2 (M2e) is highly conserved among influenza A viruses and represents an attractive target for universal influenza vaccines. Because M2e is weakly immunogenic, highly immunogenic platforms are needed to elicit protective responses. We recently developed a flagellin-displayed hepatitis B core (HBc) virus-like particle (VLP) vaccine (FH-M2e VLPs) in which the surface-exposed D3 domain of FljB was replaced with four tandem M2e copies from human H1/H3, swine H1, and avian H5/H7 strains. FH-M2e VLPs induced high anti-M2e IgG and conferred cross-protection in mice; however, they also elicited substantial anti-FljB (anti-flagellin) antibodies. We hypothesized that removing the …

Wic Staffs’ Perspectives On Underutilization Of Wic In Rhode Island, Ophelia Xorlali Mensah, Fred B. Addo, Kathryn Roy, Ann Barone

Poster Presentations

Background and Objectives: The Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) improve food security, nutrition, and overall health for low income pregnant and postpartum women, infants, and young children in the U.S. However, continuous participation and retention drop as children age in the WIC program. Very few studies have assessed these challenges faced by caregivers from the perspectives of the WIC staff. We therefore explored perspectives of WIC staff on caregivers’ participation and early dropout from WIC. Methods: We conducted in-depth interviews among 3-4 staff from each of the major WIC agencies in Rhode Island (n=20). By …

Depression And Hypertension Among U.S. Adults: A Cross-Sectional Analysis Of Nhanes Data, Abimbola Sola-Aremu

Poster Presentations

Objectives

Depression and hypertension are prevalent chronic conditions in the United States and may co-occur due to shared behavioral and physiological risk factors. This study examined the association between depression and hypertension among U.S. adults using nationally representative survey data.

Methods

A cross-sectional analysis was conducted using data from the 2021–2023 National Health and Nutrition Examination Survey (NHANES). Depression was defined as a Patient Health Questionnaire-9 (PHQ-9) score ≥10. Hypertension was defined by measured systolic blood pressure ≥140 mmHg and/or diastolic blood pressure ≥90 mmHg, self-reported physician diagnosis, or antihypertensive medication use. Participant characteristics were compared by depression status using …

Using Multi-Group Path Analysis To Examine Variability In Risk For Alcohol Problems Across Race/Ethnicity And Gender, Riza Tolga Ulman, Liam Rozum, Milagros Grados, Chrystal Vergara-Lopez, Hector Lopez-Vergara

Poster Presentations

Student Author and Department: Riza Tolga Ulman, Department of Human Development and Family Science, College of Health Sciences, URI Faculty Sponsor/Advisor and Department: Hector Lopez-Vergara, Department of Psychology, College of Health Sciences, URI Full citation: Ulman, R. T., Rozum, W., Grados, M., Vergara-Lopez, C., & Lopez-Vergara, H. I. (2026, March 27–28). Using multi-group path analysis to examine variability in risk for alcohol problems across race/ethnicity and gender [Poster presentation]. Graduate Student Conference, University of Rhode Island, Kingston, RI. (Submitted) Background: Previous research has shown that alcohol use problems are a substantial public health concern. The addiction literature has previously identified …

Rapid Visual Selection Of Transgenic Sorghum In Facilitated By Grf/Gif, Joelle Shamatta, Ryan Donnelly, Dylan Langton, Yu-Ton Chen, Mike Tilelli, Eric Myer, Albert P. Kausch

Poster Presentations

An accelerated transformation pipeline has been developed for functional genomics and trait gene analysis in Sorghum bicolor based on visual selection using the AmCyan reporter. Here, we combine a GRF4–GIF1 morphogenic regulator with a constitutively expressed AmCyan fluorescent reporter to enable early visual identification of transformed tissues from immature embryo (IE) explants and to shorten time‑to‑regeneration. We demonstrate a practical workflow in which AmCyan‑positive embryogenic clusters are visually recognized and excised 24-48 days after infection (DAI), and then rapidly regenerated directly into plants, in the absence of antibiotic/herbicide selection exposure. Further, we implement a 96‑well microplate reader assay that quantifies …

Alteration Of Spinal Serotonin Receptors After Prenatal Hypoxia Ischemia In An Animal Model, Tracy Santos, Landon Genry, Emily Reedich, Elvia Mena Avila, Brendan Moline, Katharina Quinlan, Marin Manuel

Poster Presentations

Cerebral palsy often results from perinatal hypoxia-ischemia and is characterized by motor and sensory dysfunction associated with altered serotonergic signaling in the spinal cord. The 5-HT₇ receptor, a G-protein-coupled receptor implicated in both motor control and nociceptive modulation, may thus play a critical role in these post-injury changes. However, the regional and developmental patterns of expression of 5-HTR₇ following HI injury are not well understood. In this study, we investigated the expression of spinal 5-HTR₇ in a neonatal rabbit model of HI injury at P1, P5, and P8 using Western blot analyses normalized to total protein. Tissue was isolated from …