Digital Commons Network^™

Learning Trajectories Of Online Batch Selection Methods, Luke Green

Theses and Dissertations

Modern deep neural networks achieve strong performance on large-scale datasets, but often require substantial training time. Online batch selection methods seek to reduce this cost by updating models on informative subsets of each batch rather than on all available examples. Recently introduced methods leverage teacher models and report substantial speedups, particularly in noisy-label settings. However, comparisons are often based on the number of epochs required to reach a target test accuracy, a coarse metric that is sensitive to implementation details and may obscure important differences in learning dynamics. In this thesis, we implement several online batch selection methods in a …

Biologists Study Ways To Increase Food Production For Growing World, Clara Turnage

University of Mississippi News

OXFORD, Miss. – With the world population expected to approach 10 billion by 2050, scientists are searching for ways to feed that many people with fewer resources. A new review outlines scientific advances that could help make food production more sustainable and resilient.

Microglial Swell1 Deficiency Drives Male-Specific Seizure Vulnerability But Paradoxical Neuroprotection Through Impaired Phagocytosis, Abhijeet S Barath, Aastha Dheer, Laura Montier, Mekenzie M Peshoff, Emily Dale, Flavia Goche, Thanh Thanh Le Nguyen, Mastura Akter, Fangfang Qi, Dimitrios Kleidonas, Lauren Harris, Sarah A Jewanee, Anthony D Umpierre, Dale B Bosco, Koichiro Haruwaka, Rajan Sah, Long-Jun Wu, Rongzhuo Hua, Tejaswani Datla

The Brown Foundation: Institute of Molecular Medicine

The discovery of genes encoding the volume-regulated anion channel (VRAC) has enabled detailed exploration of its cell type-specific roles in the brain. LRRC8A (SWELL1) is the essential VRAC subunit. We observed seizure-induced, subunit-specific changes in microglial VRAC expression and investigated its function using conditional KO (cKO) of LRRC8A in microglia. SWELL1 cKO mice exhibited a male-specific increase in kainate-induced seizure severity, yet showed paradoxical neuroprotection against seizure-associated neuronal loss. Mechanistically, SWELL1 deletion led to a cell-autonomous reduction in microglial density and decreased release of VRAC-permeable neuroactive metabolites, including taurine, GABA, and glutamate in culture. Additionally, impaired phagocytic kinetics and reduced …

Characterizing The Relationships Between Hydrology, Soil Biogeochemistry, And Green Ash Canopy Structure In Emerald Ash Borer-Affected Wetlands, Eva Switala

Theses

The invasion of the emerald ash borer (EAB; Agrilus planipennis) has caused mass mortality of native ash trees (Fraxinus spp.), devastating forested wetlands in the northeastern United States. Fifteen years post-introduction, the long-term ecological shifts and "new normals" of these ecosystems remain poorly understood. This project characterized patterns in EAB-affected forested wetlands by evaluating soil characteristics, biogeochemical cycling, hydrology, and green ash canopy across 12 sites with varying initial ash presence. Results revealed a clear separation between biogeochemically active and less active sites. Hydrologic differences emerged as a key driver of biogeochemical cycling, with higher soil moisture significantly increasing rates …

The Effect Of Aquatic Pollution On (Green) Microbial Communities In The Greater Rochester Area, Francesca Molee

Theses

Retention ponds are built in urban and suburban areas to catch the polluted runoff that would otherwise go into highly-valued freshwater ecosystems like the Great Lakes. They therefore make ideal model ecosystems to consider the effect of chemical, common pollution on aquatic communities. To understand the impact this aquatic pollution on both microbial community composition alongside green microbial physiological stress response, water column and sediment microbial communities were sampled from three retention ponds, and three non-retention, created ponds. The first part of this study focused on the microbial community composition. Using 16s amplicon sequencing on and subsequent analysis using Qiime2, …

Comparative Study Of Green Synthesis To Prepare Tio2 Nanoparticles From Plant Shard Leaves Extract By Using Microwave Irradiation And Microjet Plasma, Zainab Fakhri Merzah, Zainab J Shanan, Tayser Sumer Gaaz

Baghdad Science Journal

Plant extracts have been widely investigated as a safer alternative for the green synthesis of metal oxide nanoparticles. This study presents a green synthesis approach using shard leaf extract assisted by microwave irradiation and microjet plasma for the preparation of titanium dioxide nanoparticles (TiO₂ NPs). The synthesized nanoparticles were characterized using Field Emission Scanning Electron Microscopy (FESEM), X-ray diffraction (XRD), ultraviolet-visible spectroscopy (UV–Vis), Fourier Transform Infrared Spectroscopy (FTIR), and zeta potential (ZP) analysis. XRD results confirmed the formation of the anatase phase of TiO₂ without detectable brookite or rutile peaks, indicating high phase purity. The crystal structure was …

Synthesis And Characterization Of Zinc Oxide (Zno) Nanoparticles: From Chemical To Green Synthesis, Kawa S. Sulaiman, Ayoub S. Karim

Baghdad Science Journal

The present research focuses on the synthesis and comparative analysis of zinc oxide nanoparticles (ZnO NPs) produced through two distinct methodologies: a traditional sol-gel procedure and a sustainable green synthesis route. The green synthesis approach utilized Laurus Nobilis leaf extract as a natural reducing and stabilizing agent, offering an eco-friendly alternative to conventional chemical synthesis. To evaluate the structural, optical, and morphological properties of the resulting nanoparticles, both sets of samples were characterized using UV-Vis spectroscopy, XRD, energy-dispersive X-ray spectroscopy (EDX), FTIR, and Field Emission Scanning Electron Microscopy (FESEM). The XRD patterns confirmed the successful formation of a hexagonal wurtzite …

Digraph And Graph Of Regular Rings With Some Properties, Shahla Moayad Kaleel, Haitham Nashwan Mohammed, Ahmad Mohammed Alghamdi, Ahmed Mohammed Ali, Eman Sultan Almotairi

Baghdad Science Journal

During this century, a new research trend has emerged wherein algebraic concepts are combined with graph theory, such as zero divisors, clean rings, ideals, and regular rings. Continuing this trajectory, the regular ring graph has been studied in two forms: the undirected graph and the directed graph. The vertex set consists of all regular elements in the ring ℜ, denoted by ℜ(ℜ), where the undirected graph is denoted by Γ(ℜ(ℜ)) and the directed graph by Ψ(ℜ(ℜ)). This study focuses on the rings Z_n, where n = q, q², or 2q, and q is a prime number. In …

Quantitative Genetic Analysis Of Baboon Facial Variation Challenges A Classic Papionin Trait, A. Thiebaut, C. C. Roseman, Michael Mahaney, Leslea J. Hlusko

Human Genetics Publications

The Linnaean family of monkeys that includes baboons, macaques, and mandrills (among others) is notably characterized by large, extended muzzles that vary in lateral nasal dorsum profile. In paleontological studies, this variation is referred to as the anteorbital drop (AOD). Here, we first devise a method to quantify this phylogenetic character. We then employ quantitative genetic analyses using a MCMCglmm model of facial variation in a captive, pedigreed baboon colony (n = 934), including admixed individuals derived from at least two Papio species, from the Southwest National Primate Research Center to assess the quantitative variation of the AOD, its …

Modeling And Performance Analysis Of Two-Dimensional Vcsel Using Finite Element Simulation, Rand Mahdi Khudair, Shaimaa S. Mahdi

Baghdad Science Journal

Vertical cavity surface emission lasers (VCSELs) are considered to be an integral component of short-range optical communication. Compact structure, low threshold current, and high modulation capability are the reasons why these communication systems are used. efficiency. This study presents a two-dimensional numerical simulation of a VCSEL structure at a wavelength of 850 nm using the finite element method (FEM) via Laser MOD software to investigate the effect of using two different quantum well materials (QW) GaAs, and AlGaAs on the optical performance of the device. All of the above were done within the same cavity and DBR structure to provide …

Effect Of Cupc Film Thickness Prepared By Thermal Evaporation On The Performance Of An Optical Detector, Zainab Hazim Abdul Raheem, Sameer Khudhur Yaseen, Mohammed K. Khalaf

Baghdad Science Journal

Copper phthalocyanine (CuPc) is a semiconductor that is chemically very stable, highly optically absorbing of visible light, and possesses good charge transport properties, so it is a promising material for optoelectronic devices and photodetectors. In this study, CuPc thin films with thickness range 146.4–632.4 nm were grown on ultrasonically cleaned glass substrates by thermal evaporation at a pressure of 2.2 × 10^-5 torr. Structure, morphology, and optical properties were analyzed to study the effect of thickness on photoconductive response. X-ray diffraction analysis revealed that the films were polycrystalline monoclinic with preferred (312) orientation. AFM images showed increase in grain …

Studying The Physisorption And Reaction Between In9Sno15 Pyramid Nanocluster With Water Molecule Via Transition State Theory, Nisreen A. Fejer, Asmaa H. Mohammed, Mohammed T. Hussein

Baghdad Science Journal

This study investigates two binary semiconductors, Sn₁₀O₁₅ and In₁₀O₁₅, to form a ternary In₉SnO₁₅, a potential indium tin oxide (ITO) pyramid nanocluster for a humidity sensor, using density functional theory and transition-state theory. B3LYP hybrid functional was applied with the 6-311G** basis set for light elements (H, O) and (SDD) basis set for heavy elements (In, Sn). Steady-state geometrical structures were obtained using a complementary program, Gaussian View 05, and the corresponding electronic properties. HOMO and LUMO were calculated via the Gaussian 09W software program …

Coefficient Bounds For A New Subclass Of Meromorphic Multivalent Functions With Higher Derivatives Obtained From Bessel Function, Ali Musaddak Delphi

Baghdad Science Journal

The goal of this paper is to introduce a new subclass of meromorphic multivalent functions with higher derivatives inside a punctured open unit disk U*, by generalizing the Bessel function. The method used to derive the new findings on this topic is stated in section two of this paper. The product theorem between two functions and neighborhood properties was obtained using the recently discovered coefficient bounds for the new subclass. In addition, this paper attempted to address an important research gap in the subject of geometric function theory, which is the computational tools for coefficient bounds through the use …

Quasi-Mixing C0-Semigroups And Their Relations With Recurrent C0-Semigroups, Mansooreh Moosapoor, Otmane Benchiheb

Baghdad Science Journal

This article presents and investigates the concept of the quasi-mixing C₀-semigroups. It is proved that the quasi-mixing of an invertible C₀-semigroup is equivalent to the quasi-mixing of its inverse. The quasi-mixing vectors are defined and they are used to prove a sufficient condition for the quasi-mixing. It is established that the quasi-mixing of a C₀-semigroup is equivalent to the quasi-mixing of any of its discretizations. The quasi-mixing of a C₀-semigroup ( T_t )_{t ≥ 0}, as it is demonstrated by this study, implies the quasi-mixing for each operator T …

Evaluation Of Home Loan Candidates Using Energy And Laplacian Energy In Hesitancy Fuzzy Zagreb Matrices, A. Abinaya, G. Deepa

Baghdad Science Journal

A hesitancy fuzzy graph is a type of generalized fuzzy graphs that reflects reluctance or uncertainty in interactions by assigning a variety of potential membership values rather than a single value to each vertex and edge. It offers an adaptable framework for simulating intricate systems with ambiguous, reluctant, or imperfect input. Topological measurements that capture and characterize a graph's structural features are called Zagreb indices, and they are obtained from vertex degrees. Although Zagreb indices and graph energies have been studied for intuitionistic fuzzy graphs, fuzzy graphs, and classical graphs, no work has been done to apply these ideas to …

Approximation In S-Normed Orlicz Spaces, Zainab Abdulmunim Sharba, Hawraa Abbas Almurieb, Samah Alhashemi

Baghdad Science Journal

Orlicz spaces generalize conventional Lebesgue spaces, providing a more flexible framework for analyzing functions. They are essential to functional analysis and related fields, particularly in approximation theory. This paper defines an Orlicz normed space equipped with an S-norm, where S is an outer function that satisfies certain conditions. Introducing norms via the outer function S is a general method that encompasses many cases of norms in Orlicz spaces. The relationship between S-norm and other norms on Orlicz spaces is established through several equivalences. Moreover, moduli of smoothness are of great interest in approximation theory, as they provide criteria …

Numerical Study Of The Effect Of Embedded Radiation On Fluid Flow And Heat Transfer In A Porous Medium, Shaymaa M. Younus, Iman Al-Obaidi

Baghdad Science Journal

This takes a look at ambitions to investigate the two-dimensional flow pattern of fluids in a conductive medium constrained between two parallel horizontal plates under the influence of embedded radiation. The mathematical model is based entirely on the flow equations, including the continuity, momentum, energy, and diffusion equations. The machine is solved numerically the usage of the specific finite difference approach (ADE) to investigate the conduct of drift, temperature, and mass transfer below radiative outcomes. The study specializes in the impact of key dimensionless parameters, including the Reynolds number, Darcy number, Grashof number, Péclet number, radiation parameter, mixed radiation, and …

Bovine Tuberculosis In The Middle East And North Africa: A Systematic Review And Meta-Analysis On Prevalence And Mycobacterium Bovis Clonal Complexes, Tsegaye Shamebo, Aboma Zewude, Temesgen Mohammed, Nabeeha Abdelgaleel Hassan, Mohammed Saleh Albreiki, Yassir Mohammed Eltahir, Atef Oreiby, Robert Barigye, Markos Tibbo, Ali Artaman, Gobena Ameni

All Works

Introduction – Bovine tuberculosis (bTB) is endemic in the Middle East and North Africa (MENA) region causing major threat to dairy production and milk consumers. This paper presents a comprehensive systematic review and meta-analysis of bTB prevalence and Mycobacterium bovis clonal complexes in the MENA region based on studies published between 2000 and 2025. Methods – A comprehensive literature search was conducted in PubMed, Scopus, Web of Science, Embase, and relevant regional databases. Thirty-eight studies met the criteria and included in the meta-analysis. Random-effects meta-analysis was used to estimate pooled prevalence. Additional analyses were done on sensitivity, meta-regression, and publication …

Bottlebrush Polymer Conjugates For Enhanced Antisense Oligonucleotide Therapy In Myotonic Dystrophy Type 1, Yao Li, Gyu Seong Heo, Yongjian Liu, Et Al.

2020-Current year OA Pubs

Oligonucleotides are a promising class of genetic medicine for myotonic dystrophy type 1 (DM1), the most common adult-onset muscular dystrophy. However, poor muscle distribution of nucleic acid drugs following systemic administration has hindered drug development, and no curative treatment currently exists. DM1 pathology requires drug localization to the nucleus, where pathogenic mutant RNA is sequestered, posing additional challenges after cellular internalization regarding endosomal escape and nuclear uptake. Here, we show that a locked nucleic acid oligonucleotide targeting mutant CUG repeat RNA tracts, conjugated to a bottlebrush polymer, exhibits improved muscle distribution and potent correction of DM1-associated splicing dysregulation in a …

Colostrum Management For Dairy Calves: Key Practices For Calf Health And Performance, Drew Swartz, Jacob Hadfield, Kalen Taylor, Maggi Mathews

All Current Publications

This fact sheet provides practical recommendations for dairy producers to improve colostrum management and support calf health and performance.

Program (Pdf), Department Of Orthopaedics

Dept. of Orthopaedics: Robert D. D’Ambrosia Lectureship & Research Day

Program with abstracts for the 22nd Annual Dept of Orthopaedics Annual Robert D. D’Ambrosia Lectureship & Research Day held June 20, 2026.

Vector-Borne Viral Diseases In Horses, Sunutcha Suntrarachun

The Thai Journal of Veterinary Medicine

Vector-borne viral diseases are major threats to equine health worldwide. These infections are transmitted by arthropod vectors such as mosquitoes, biting midges, and horseflies, resulting in clinical manifestations ranging from mild febrile illness to severe neurological, respiratory, circulatory, or hematologic disorders with high mortality rates. Major equine vector-borne viral diseases include African horse sickness (AHS), equine infectious anemia (EIA), equine encephalomyelitis (Eastern: EEE, Western: WEE, and Venezuelan: VEE), West Nile virus (WNV), and Japanese encephalitis (JE). Each disease is caused by a distinct viral pathogen and transmitted by specific vectors that influence their epidemiology and geographic distribution. Transmission occurs through …

Reference Values For Intraocular Pressure In Collared Scops Owls (Otus Lettia) Measured Using Rebound Tonometry, Yun-Shan Chiu, Chau-Hwa Chie, Pin-Huan Yu, Chung-Tien Lin

The Thai Journal of Veterinary Medicine

In this study, we aimed to establish species-specific reference values for intraocular pressure (IOP) in clinically healthy collared scops owls (Otus lettia) using rebound tonometry. Twelve free-living owls were included, and twentyfour eyes were examined. All owls were physically restrained in an upright position without sedation. Intraocular pressure was measured in both eyes using rebound tonometry (TONOVET; iCare Finland Oy, Vantaa, Finland) in d mode. No significant difference in IOP was observed between the right and left eyes. The mean IOP values were 10.42 ± 1.24 mmHg (median, 11 mmHg; range, 8–12 mmHg) in the right eye and 10.75 ± …

Calibration And Validation Of An Ogden Material Model For Thermoplastic Polyurethane In 3d-Printed Tensegrity Structures, Caleb C. Swain

Theses and Dissertations

This work is motivated by ongoing efforts within the Smart Materials, Adaptronics, and Shock Laboratory (SMASH Lab) at Brigham Young University (BYU) to develop variable-stiffness, external fixators using 3D-printed tensegrity structures. In the process of designing and evaluating these systems, the need arose to accurately model the nonlinear mechanical behavior of thermoplastic polyurethane (TPU), the primary material used in prototype fabrication. This thesis investigates how accurately a calibrated Ogden material model can predict the nonlinear mechanical response of TPU in 3D-printed tensegrity structures. Experimental data were used to calibrate the parameters of the hyperelastic constitutive model through nonlinear optimization. An …

Prmt5 As A Key Driver Of Stemness And Metastatic Potential In Triple-Negative Breast Cancer, Jae Jin Jeong, Mauli Maniar, Shahrzad Ghane, Sakshi Deshpande, Claire Ellis, Ashakumary Lakshmikuttyamma

College of Pharmacy Faculty Papers

Protein arginine methyltransferase 5 (PRMT5) mediates arginine methylation of a wide range of proteins and plays context-dependent oncogenic or tumor-suppressive roles. In cancer, PRMT5 represses several tumor suppressor genes, including E-cadherin, TP53BP1, ST7, PTEN, and RB (retinoblastoma). Elevated PRMT5 expression has been reported across multiple cancer types, notably triple-negative breast cancer (TNBC). In TNBC, high PRMT5 levels are associated with enhanced cancer stem cell self-renewal, increased tumor growth and metastasis, and reduced patient survival. Mechanistically, PRMT5 promotes breast cancer stem cell maintenance and proliferation through stabilization of the transcription factors KLF4 and KLF5. Disruption of the PRMT5-KLF4 axis results in …

The Effect Of Flaxseed Oil On Fertility, Mohammad F. Albadran, Ahmed B. Abdulwahid, Assad H. Eissa, Nehaya M. Al-Aubody, Shaymaa F. Abbas, Zainab M. Mohammed

Hilla University College Journal For Medical Science

Background: Infertility can be defined as the inability to conceive pregnancy when sexually active and not having used any contraception in 12 months. Flaxseed oil has wide-spectrum applications in health. It has been receiving special interest in infertility treatment.

Objectives: This research aimed to determine the impact of flaxseed oil on the fertility of mice.

Methods: It involved seventy-five mice. These mice were sex-separated and randomly classified into three groups; one group served as a control group, and the other two groups were exposed to flaxseed oil extract at a dose of 60 mg/Kg body weight/day or 120 mg/Kg body …

Factors Associated With Discharge Against Medical Advice Among Patients Attending The Emergency Departments In Babylon Governorate, Hasan Alwan Baiee, Ali Mohsen Al-Jobury, Ola Mosheb

Hilla University College Journal For Medical Science

Background: With the increasing number of patients leaving the emergency department against medical advice, morbidity, mortality, and readmission rates have risen, placing a strain on the healthcare system.

Objectives: This study aimed to identify the demographic characteristics and the reasons why patients left against medical advice among those attending the emergency departments of teaching hospitals in Babylon Governorate.

Materials and Methods: A descriptive cross-sectional study was conducted in Babylon Governorate, encompassing three hospitals. using a convenience sample of patients who left the hospital against their physician's advice. Data were collected between August 2024 and February 2025 using a semi-structured questionnaire …

Infection By Entamoeba Histolytica Among Children Attending Maysan Pediatric And Maternity Hospital In Amarah City, Ali Idan Al-Musaedi, Ahmed Hussain Rahim

Hilla University College Journal For Medical Science

Background: Most parasites impose some level of damage to their hosts. Factors such as the number of parasites, the site of infection, the size and mobility of the parasite, along with the host's physiological condition and whether it serves as an intermediate or final host, affect the severity of infections in both humans and animals.

Objectives: To determine the prevalence of Entamoeba histolytica infection in children under the influence of some risk factors.

Materials and Methods: A total of 1213 stool samples were collected from children attending Maysan Pediatric and Maternity Hospital in Amarah City, Maysan Governorate, southern Iraq. Microscopy …

Fragile Hope And The Cultural Life Of Law, Shefali Jain

Socio-Legal Review

This review of Sandhya Fuchs’ Fragile Hope: Seeking Justice for Hate Crimes in India (Stanford University Press 2024) highlights that the book makes a genuinely original ethnographic and conceptual contribution to caste studies and hate crime scholarship. At the same time, the essay argues that there are three limitations to its framework that require greater engagement: the book’s failure to engage with the legal consciousness tradition in socio-legal scholarship, an underdeveloped account of “legal meliorism,” and an unresolved tension between the book’s stated commitment to victim-centred analysis and its ethnographic evidence that frequently discusses movement-level aspirations.

From The Edge To The Grounds Of “Sentientism”, David Degrazia

Animal Sentience

Birch’s book is a remarkable exploration of the nature of sentience, its moral salience, evidence for its presence, and how to arrive at humane policies regarding our treatment of human beings, animals, brain organoids, and AI systems of uncertain sentience. Although Birch endorses the view that sentience is of fundamental moral importance, he endeavors to remain neutral among reasonable moral views and work out how to navigate through uncertainty—both ethical and epistemological—to arrive at defensible policies. While making common cause with Birch’s project, my own recent book advances a developed case in favor of the “sentientism” Birch endorses.