Digital Commons Network^™

Exploring The Growth Dynamics Of Streptococcus Mutans In Diverse Environmental Conditions, Vanessa Escudero

Theses and Dissertations

Dental caries, a prevalent oral health issue, is primarily associated with the growth of Streptococcus mutans, a Gram-positive bacterium that grows under various oral environments. The primary objective of this study was to evaluate the impact of different beverages and mechanical cleaning on the growth of S. mutans, which plays a crucial role in tooth decay. Using a nano-spectrophotometer we analyzed bacterial growth by constructing growth curves under different conditions, including exposure to cranberry juice, Hawaiian juice, and mechanical brushing.

The study was designed to mimic real-world oral conditions by testing S. mutans in four distinct environments. First, we established …

Stocking Density Effects On Growth Performance Of Glass Eels (Anguilla Bicolor Pacifica) In Outdoor Tank Conditions, Frolan A. Aya

The Philippine Agricultural Scientist

Optimizing stocking density is necessary to maximize the production efficiency of farmed fish. This study examined the effect of stocking density on the growth performance of the Pacific shortfin eel Anguilla bicolor pacifica reared in outdoor tank conditions. Glass eels (0.72 ± 0.03 g mean body weight [BW]) were stocked at 50 and 100 individuals m⁻² in 6 4-m² outdoor tanks with a flow-through system set up in triplicate. Eels were individually measured for total length and BW, followed by blood sampling at the end of the 286-d trial. Glass eels stocked at a density of 50 m …

Review Of Dr. Adelina A. Barrion’S Contributions To Basic Studies On The Asian Corn Borer And A Tribute To An Outstanding Entomologist, Ireneo L. Lit Jr., Merdelyn T. Caasi-Lit, John David C. Cortez, Aimee Lynn A. Barrion-Dupo

The Philippine Agricultural Scientist

The previous works of the late Dr. Adelina A. Barrion, a distinguished Filipino insect geneticist, on the Asian corn borer (ACB), Ostrinia furnacalis (Guenee), were retrieved. The works were reviewed and highlighted in relation to the recently funded project entitled “Basic studies on the Asian corn borer, Ostrinia furnacalis (Guenee),” funded by the Biotechnology Coalition of the Philippines in collaboration with various players in the corn seed industry. The unpublished papers of Dr. Barrion from the 1981 PCARR project entitled “Breeding for Corn Borer Resistance” were important milestones in basic studies on the ACB. Several studies conducted by her team …

Non-Target Organisms And Terrestrial Arthropod Biodiversity In The Corn Agroecosystem: Bt Corn Beyond Acb Pest Management [Review Article], Ireneo L. Lit Jr., Merdelyn T. Caasi-Lit, Kristine O. Abenis

The Philippine Agricultural Scientist

Assessments of risks of modern biotechnology products to non-target organisms (NTOs) are required before a product can be registered and allowed for commercial production. For Bt-engineered plants, data from such studies become part of environmental risk or impact assessments that are reviewed before a hybrid can be registered and allowed for commercial planting. The approaches and methods vary among countries and researchers. Consequently, the choice of species and groups of organisms or guilds that are monitored or studied may range from narrow to broad and encompassing. The inevitability of adverse changes in agroecosystems, including those that involve the corn crop, …

Basic Studies On The Asian Corn Borer, Ostrinia Furnacalis (Guenée), Are Crucial For Insect Resistance Management For Bt Corn In The Philippines, Merdelyn T. Caasi-Lit, Aimee Lynn A. Barrion-Dupo

The Philippine Agricultural Scientist

The Philippines is considered to be “at the forefront of biotech research and commercialization in Southeast Asia and a model for science-based and thorough regulatory policy in the region” (ISAAA 2016). This is evident in the country's pioneering adoption of Bt corn technology in Asia and in the effective handling and implementation of rules and regulations on biosafety and the application of transgenic crops through the regulatory function of the Bureau of Plant Industry (BPI) under the Department of Agriculture.

Age-Dependent Reproductive Fitness And Behavioral Dynamics Of The Asian Corn Borer, Ostrinia Furnacalis (Guenée) (Lepidoptera:Crambidae), Marcela M. Navasero, Randolph N. Candano, Maricon Dp Javier, Jethro M. Navasero, Wilson N. De Panis

The Philippine Agricultural Scientist

This study evaluated the effects of parental age of the Asian corn borer (ACB), Ostrinia furnacalis (Guenée), on fecundity, egg hatchability, adult longevity, and the duration of pre-oviposition, oviposition, and post-oviposition periods using arranged mating pairs aged 1 to 5 days old. Mating behavior was also observed and documented. The highest fecundity, measured by the number of egg masses and total eggs produced, was recorded in pairings of 1-day-old males and females, indicating a positive effect of young parental age. In contrast, pairings involving 5-day-old males and females resulted in the lowest egg production, demonstrating an inverse relationship between parental …

Characterization Of Adult Emergence Pattern And Eclosion Behavior Of The Asian Corn Borer, [Ostrinia Furnacalis (Guenée)] (Lepidoptera: Crambidae), Under Laboratory And Field Conditions In The Philippines, Marcela M. Navasero, Gelyn D. Sapin, Merdelyn T. Caasi-Lit, Wilson N. De Panis, Randolph N. Candano, Maricon Dp Javier, Jethro M. Navasero, Meijei T. Bangangao

The Philippine Agricultural Scientist

This study focuses on understanding the emergence pattern of Asian Corn Borer (ACB), Ostrinia furnacalis (Guenee), in the Philippines vital in crafting integrated pest management schemes, including insect resistance management against pesticides and Bt protein. Although ACB adults are known to be nocturnal and primarily emerge at night, identifying critical windows of emergence for targeted management actions is essential. In the experiments conducted, the scotophase period is the preferred time for adult emergence under laboratory conditions with 248 adults (80.52%) and 60 adults (19.48%) in the photophase period. A similar trend was also observed under field cage conditions with ACB …

Temporal Decline And Spatial Heterogeneity Of Cry1ab Susceptibility In Asian Corn Borer, Ostrinia Furnacalis (Guenée), Populations In The Philippines: A Review And Synthesis Of Monitoring Data (2015–2024) [Review Article], Edwin P. Alcantara

The Philippine Agricultural Scientist

Transgenic corn expressing the insecticidal Cry1Ab protein has been widely utilized in the Philippines to control the Asian corn borer (ACB), Ostrinia furnacalis (Guenée). Continuous, long-term monitoring is critical to detect shifts in baseline susceptibility and mitigate the risk of field-evolved resistance. This study evaluated the spatiotemporal dynamics of ACB susceptibility to Cry1Ab over nine years (2015–2024). Bioassay data were collected from 12 geographically distinct field populations across the Philippines, alongside a susceptible laboratory reference strain (UPLB). To account for spatial hierarchy and temporal variance, data were analyzed using a Bayesian hierarchical multilevel model with a logit link. Baseline assessments …

Movement Of The Different Larval Stages Of Asian Corn Borer, Ostrinia Furnacalis (Guenée), On Conventional Corn Hybrid Under Field Caged Conditions, Merdelyn T. Caasi-Lit, Mark Bryan A. Lontoc, Victor V. Alpuerto, Abigail P. De Leon, Jenifer Bigkas-Naungayan, John David C. Cortez, Edwin A. Benigno

The Philippine Agricultural Scientist

Larval dispersal is crucial in pest population establishment in crop fields. The movement of Ostrinia furnacalis (ACB) larvae within corn plots was observed to determine which factors affect larval dispersal in the field. Conventional corn plots (3 rows, 0.70 m apart x 9 plants, 0.20 m apart) were artificially infested with different combinations of larval age and pest density. The distributions of larvae were recorded through destructive sampling at 4, 8, 12, and 16 days after infestation (DAI). The behavior of ACB from the time the hatching larvae break open the egg mass shell to ballooning to start actual movement …

External Funding Bulletin July 1, 2024-June 30, 2025, Office Of Research And Creative Activity, University Of Nebraska At Omaha

Sponsored Programs Bulletins

No abstract provided.

Modeling And Analysis Of Electric Signal In Neurons, Kevin J. Roberts

All Graduate Reports and Creative Projects, Fall 2023 to Present

Neurons in humans and other species transmit information by sending electric signals via axons. This process relies on the generation and propagation of action potentials—rapid changes in the membrane potential of the axon. Understanding the mechanisms of action potentials, including how they are generated and influenced by the axon geometry and material parameters, is crucial for gaining insight into neurological diseases such as Alzheimer’s and Multiple Sclerosis (diseases highly correlated to demyelination). In this work, we review and summarize mathematical models for signal transmission–including the classical Hodgkin-Huxley model, the Single Cable (SC) model, and the Double Cable (DC) model. We …

Enhancing Pediatric Sun Safety: A Parent-Focused Intervention In El Dorado County, Ashley Riley, Calvin Nauer, Alaina Godwin

ELMSN E-Portfolio. A collection of Scholarly and Creative Works

Background:

Childhood ultraviolet (UV) exposure is the most significant modifiable risk factor for skin cancer, yet proper sun protection remains inconsistently practiced by parents. In El Dorado County, California, where high altitude and intense sun exposure amplify UV risk, knowledge gaps and misinformation persist despite resource availability. This quality improvement (QI) project aimed to strengthen parental knowledge, confidence, and modeling of sun-safe behaviors for their children through an evidence-based community education program.

Aim:
The goal of this QI initiative was to improve parental attitudes, self-efficacy, and photoprotective behaviors by implementing a three-part, nursing-led educational intervention focused on UV risk awareness, …

Embodied Encounters With Plankton: Ground Truth Methods As Sites For Human-Ocean Entanglement, Clarissa Chevalier

Study of Women, Gender, & Sexuality: Faculty Publications

This article examines shifting methods of plankton research within contemporary oceanography through direct participatory engagement on a ten-day research cruise off the Santa Lucia Escarp- ment in February 2025. As a feminist visual science studies researcher, I reflect on how seasick- ness, sensory immersion, and embodied participation shaped my experience of plankton sampling and reveal the entanglement of oceanographic knowledge with its contexts. While remote sensing technologies – such as satellites, digital twins, and remotely operated vehicles – are increasingly shaping oceanography and producing intensified modes of ocean quantification, I argue that tactile, physical sampling methods remain indispensable in plankton …

An Impact Study Of Young Women's Leadership Development: A Case Study Of Kosovo, Linda Gjergji

Theses & Dissertations

This study explores the leadership development trajectories of young women in Kosovo engaged in a global leadership program, offering significant insights into their capabilities, aspirations, and the barriers they face in pursuit of leadership roles. Using a qualitative instrumental case study approach, this study examines how participation in global leadership initiatives fosters skill development, self-awareness, and civic engagement among young women in a traditionally male-dominated society. The conceptual framework of the study is comprised of Erikson's theory of Psychosocial Development (Erikson, 1968) and Positive Youth Development (Lerner, 2005). Data was collected through online semi-structured interviews and an arts-based method, revealing …

Nevertheless, She Persisted: An Examination Of The Lived Experiences Of Single Mother College Students And The Factors That Drive Motivation And Persistence, Amy N. Migura

Theses & Dissertations

How single-mother college students find the motivation to persist toward achieving their college degrees is an underexplored phenomenon in the current literature. This qualitative study used an interpretive phenomenological analysis approach to explore the lived experiences of single-mother college students and the things that motivate them to persist. Participants described their personal challenges counteracted by the ways in which they were able to persevere. Findings of this study identified both a positive and negative component of the factors that impacted their motivation to persist, along with providing a closer look at the way the participants set and achieved goals.

Barriers To Parental Engagement In Early Childhood Education, Jordan E. Clark

Human Development and Family Sciences Undergraduate Honors Theses

Parental engagement in early childhood education has long been recognized as a foundational contributor to children's academic success. However, many families face persistent barriers that limit their participation. This study examined three primary obstacles to parental engagement: disabilities, socioeconomic status, and underdeveloped parent–teacher relationships. The findings suggested that intentional, community-centered approaches effectively reduce barriers to engagement, strengthen school–family partnerships, and offer replicable models for promoting equitable participation in early childhood education settings. To bring these strategies to life, the study included a family engagement event developed in collaboration with a childcare center serving children with developmental delays, which provided a …

Sb 1 - Elementary, Secondary, And Postsecondary Education, Kathryn A. Hammock, Noelle C. Hoke

Georgia State University Law Review

The Act establishes statewide requirements for student participation in athletic teams based on biological sex as recorded on a student’s original birth certificate. It requires all public schools, and any private schools that compete against them, to designate school-sponsored athletic teams as male, female, or coeducational. Teams designated for females are restricted to students whose biological sex is assigned female at birth while teams designated for males are restricted to students whose biological sex is assigned male at birth, unless a corresponding team for females is not offered. The Act directs the state athletic association to develop rules to enforce …

Hb 127 - Education Generally, Rachel V. Ramsey, Robin K. Stein

Georgia State University Law Review

The bill proposed a prohibition on local education agencies and postsecondary institutions from endorsing any programs or activities that advocate for diversity, equity, and inclusion, which includes any efforts to promote the different treatment of individuals on the basis of race, color, sex, ethnicity, national origin, gender identity, or sexual orientation. However, the bill excludes policies and rules relating to restrooms and changing areas. Violation of the bill’s provisions may result in the withholding of state funding or state-administered federal funding.

Sb 185 - Penal Institutions, Hailey Sanford, Elijah C. Byrd

Georgia State University Law Review

The Act prohibits the use of state funds or resources to provide genderaffirming medical care to incarcerated individuals. It bans funding for sex reassignment surgeries, hormone replacement therapy, and any cosmetic or prosthetic procedures intended to alter an inmate’s primary or secondary sex characteristics. The bill includes limited exceptions, such as treatments for individuals with intersex conditions or those requiring continued hormone therapy that began prior to incarceration and is continued only for tapering purposes. The Georgia Department of Corrections is tasked with creating rules to govern these exceptions.

Breastfeeding Safety Following Maternal Anesthesia: A Guideline Development, Megan Honea, Mary Johnson

Doctoral Projects

Recommendations regarding breastfeeding following maternal anesthesia are inconsistent and often not up to date with current best practice guidelines. Previous recommendations have led to mothers unnecessarily “pumping and dumping” breast milk has benefits for both mother and baby. These benefits include (a) increasing the infant’s access to colostrum, (b) encouraging mother-baby bonding, (c) improving the mother’s breastfeeding experience, (d) and providing significant health benefits to the infant. The purpose of this scholarly project was to develop a set of evidence-based recommendations that focus on mothers who desire to breastfeed following general anesthesia. These recommendations will highlight maternal- fetal transfer of …

Annual Report 2024-2025, Houston Academy Of Medicine - Texas Medical Center Library

Annual Reports: 1943 - Present

This file contains the Annual Report for the library from 2024-2025.

Ecological Elemental Homeostasis And Stoichiometric Shifts: Biotic Responses To Ionic And Viral Stress, Samuel Anthony Tooru Dias

Graduate Theses and Dissertations

Anthropogenic activities are reshaping the elemental composition of freshwater ecosystems, often creating stoichiometric imbalances that influence the growth, physiology and interactions of aquatic organisms. Ecological stoichiometric theory (EST) provides a framework for examining these changes by linking organismal elemental regulation to broader ecosystem processes. While traditionally focused on elements, such as carbon (C), nitrogen (N), and phosphorus (P), emerging stressors highlight the need to expand this framework to be more elementally inclusive for the examination of novel interactions. My dissertation integrates abiotic (salinization) and biotic stressors (viral infection) into an EST framework to evaluate how these factors alter elemental regulation …

Rapid Construction Of Short Gap Crossings Using Indigenous Timber, Jack Everett Hamburger

Graduate Theses and Dissertations

This thesis examines multiple design options for constructing short span crossings for the military using indigenous timbers. Using indigenous timbers allows for a significant reduction in resources that must be brought into a site for construction. Construction time is minimized by optimizing the steps to convert indigenous timber into structural members for use as timbers in a short gap crossing. A major objective during this thesis study was to examine approaches for maximizing timber strength for design purposes and reduce timber weight for handling purposes. Wood strength and wood weight are highly dependent on moisture content. Decreasing moisture content addresses …

Advancing The Virus Diagnostic Toolkit: Development Of Accurate And Reliable Artificial Virus-Mimicking Positive Controls And Crispr-Based Detection, Habeeb Yinka Atanda

Graduate Theses and Dissertations

Accurate and reliable detection of plant viruses is critical for protecting berries and other economically important crops. Yet diagnostic programs face persistent challenges with positive control availability, biosafety concerns, and specificity limitations. This thesis advances the diagnostic toolkit for berry viruses through three complementary innovations that address fundamental gaps in current detection methodologies. First, this research developed and validated virus-mimicking artificial positive controls (ViMAPCs) for diverse viruses affecting berry crops for endpoint PCR applications. ViMAPCs incorporate size differentiation, which enables immediate visual gel band discrimination between control and natural infection signals. Amplification efficiency analysis demonstrated close correspondence with true-positive controls …

Integrated Pest Management Adoption, Pesticide Handling And Knowledge Gaps Among Cotton Farmers In Tanzania: Implications For Human And Environmental Health, Sospeter Jibunge Charles

Journal of Humanities and Social Sciences

The global demand for cotton has risen significantly due to its extensive use in the textile and manufacturing industries, making it one of the most valuable cash crops worldwide. However, this growing demand for cotton production is severely threatened by the currently emerging pests which are intensified by the occurring of climate change and variability. As a result, many smallholder farmers have increasingly turned to chemical pesticides use to control the pests and maintain cotton production. But, while pesticides are effective in controlling pests and improving yields, their improper use and mismanagement pose serious risks to human health and the …

Where Is Dance In Education? Perspectives On The State Of Dance In Independent Schools Across The Midwest And How One School Community Fits Into The Larger Picture, Megan O'Toole

Master's Theses

The goal of this study was to examine the current state of dance education in independent K-12 schools in the Midwest region of the United States. The researcher developed four essential questions to guide the study:

Q1 Which schools had dance programming, and which schools did not have dance programming?

Q2 For the schools that had dance programming, what did the dance programs look like?

Q3 What factors influenced a school’s decision to include dance programming?

Q4 What factors influenced a school's decision to exclude dance programming?

A regional study was conducted to understand the trends associated with current dance …

Adsorption-Based Electrochemical Assay For Nucleic Acid Detection On 2d Nanomaterials, Prabhangshu Kumer Das

Dissertations

Electrochemical biosensing based on the adsorption of nucleic acids onto two-dimensional (2D) nanomaterials offers distinct advantages over conventional techniques, including enhanced sensitivity, selectivity, and simplified probe immobilization. Significant efforts have been directed toward developing sensing platforms that exploit the high surface area and unique physicochemical properties of materials such as graphene oxide (GO) and molybdenum disulfide (MoS₂) to achieve efficient signal transduction. This adsorption-based approach eliminates the need for complex surface modifications or labeling, as nucleic acids interact with 2D surfaces through π–π stacking, van der Waals forces, hydrogen bonding, electrostatic interactions, and ion bridging.The efficiency of nucleic acid immobilization …

Small Laser-Textured Dimples For Improved Tribological Performance Of Cocrmo In Artificial Hip Joints, William Basore Bennett

Graduate Theses and Dissertations

Total hip replacement is a highly successful surgical intervention that restores mobility and improves quality of life for patients with severe joint degeneration. However, the long-term durability of artificial hip joints remains limited by tribological challenges, particularly wear-related failures that can lead to osteolysis and revision surgeries. In metal-on-polyethylene bearing systems, reducing friction and wear at the interface between cobalt–chromium–molybdenum (CCM) femoral heads and ultra-high molecular weight polyethylene (UHMWPE) liners is critical to extending implant lifespan. Laser surface texturing has emerged as a promising technique to improve tribological performance by introducing micro-dimples that enhance lubricant retention and reduce asperity contact. …

Political Questions And The Role Of Federal Courts In Deciding Claims That The Executive Branch Is Violating Fundamental Norms Of International Law: The Case Of United States Aid For The Israeli War Against Palestinians In Gaza And The West Bank, Jules Lobel

UC Law Journal

A recent challenge to the Biden Administration’s military aid to Israel as aiding genocide presents an important question of the role of U.S. courts in adjudicating claims that top U.S. officials, in their execution of U.S foreign policy, are violating fundamental international law norms, such as the prohibition against committing or aiding and abetting genocide. Both the District Court and the Court of Appeals for the Ninth Circuit dismissed the case as presenting a non-justiciable political question.

The Ninth Circuit’s decision raises the broad question of whether challenges to U.S. government violations of fundamental norms of international law can ever …

Realizing The Americans With Abilities Act: Promoting Civil Rights & Capabilities In The Service Of Individuals With Brain Injury, Zachary E. Shapiro, Tiffany Li, Kaiulani S. Shulman, Melisa Olgun, Chantelle Van Wiltenburg, Molly Teague, Emma Kromm, Brandy Allen, Elliot E.C. Ping, John D. Bowers, Rebecca Harris, Nayla Basma, Apurv Hirsh Shekhar, Gregory E. Antill, Megan S. Wright, Joseph J. Fins

UC Law Journal

Brain injuries often result in varying degrees of impairment to communication and cognitive processes, impeding an individual’s ability to engage in daily activities, participate in social interactions, and achieve independence. This paper builds upon our legislative proposal from Designing An Americans With Abilities Act: Consciousness, Capabilities, and Civil Rights, published in the Boston College Law Review in 2022. That paper proposed new legislation called “The Americans with Abilities Act” (“AWAA”), a comprehensive framework for the effective development, uptake, and utilization of advanced assistive technology (“AT”). These technologies aid individuals with brain injuries in realizing their capabilities and reintegrating into broader …