Digital Commons Network^™

Pinenergy: A Sustainable Bio-Piezoelectric Generator From Queen Pineapple Crown Leaves (Ananas Comosus [Linn.] Merr.) For Energy Generation, Harvesting, And Conversion, Angelyzha Julienne V. Carpio, Rhionna Marie M. Mayor, Mark Cyril C. Brazil

DLSU Senior High School Research Congress

Energy is one of the necessities in life. The Philippines has abundant energy resources; however, as the energy demand increases, energy reserves are diminishing faster than they can be replenished, and alternatives remain underutilized due to cost and ethical challenges, resulting in a shortage in energy production. To combat this, bio-piezoelectricity, which transforms mechanical forces into electrical energy through an organic material, offers a secure substitute for current energy resources. This study aims to determine the efficacy of queen pineapple crown leaves (QPCL) as a bio-piezoelectric generator in energy generation, harvesting, and conversion efficiency. The leaves served as the primary …

Evaluating Shrub-Based Bio-Subsoiling In A Polyculture System For Medicinal Plants In Bacoor, Cavite: Meristematic Analysis Of Basil (Ocimum Basilicum) Using Indole-3-Acetic Acid (Iaa) As A Growth Indicator, Stephen Evan M. Salugsugan, Aria Melle Liz P. Alquiroz

DLSU Senior High School Research Congress

Despite the Philippines having great agricultural potential, monoculture cultivation continues to prevent the realization of this, through poor resource utilization, particularly in the underutilized sector of medicinal-plant-focused agriculture. This study explores the effects of shrubbing, a biological subsoiling method using santan (Ixora coccinea) as the main deep-rooted shrub, on the growth of basil (Ocimum basilicum) under two cultivation systems, focusing on the presence and absence of the added shrub species: traditional monoculture and polyculture. The study, conducted in a controlled 30 m greenhouse in Bacoor, Cavite, aims to assess the effectiveness of shrubbing in improving crop …

Love And Lust: A Philosophical Assessment Of The Morality Of Watching Pornography In Romantic Relationships Through Aristotle’S Concept Of Rationality And Virtue Ethics, Missy Gabrielle Magtibay Dimayuga, Kaisser Brent Sanchez Eufemio, Annika Almhyr B. Rivera, Aiyana Chantel Go Tuvilla, Maria Karla Ysabelle Ticzon Vesorio

DLSU Senior High School Research Congress

This study examines the moral acceptability of watching pornography while being in a romantic relationship. It explores the role of consent and intent in determining whether the aforementioned act is morally acceptable or morally unacceptable. Using Aristotle’s Function of Rationality and his Virtue Ethics, the study establishes that the moral acceptability of pornography consumption is subjective, and its acceptability is not dictated by a universal and unconditional moral rule, but is rather dictated by the perspective, situation, and dynamic of the individuals in a relationship themselves. The study argues that the act may be morally acceptable given that there is …

Optimization Of Contact Time, Dosage, And Initial Ph, In The Efficiency Of Activated Carbon Derived From Coconut Shells As Adsorbents For The Removal Of Aqueous Methylene Blue Solution, Cady Mendrei C. Casilag, Andie Francheska A. Cua, Samuel Matthew D. Leachon, Giancarlo Cyrus O. Maranan

DLSU Senior High School Research Congress

Freshwater scarcity and pollution, exacerbated by industrial activities such as textile and cosmetic production, are critical global challenges, with synthetic dyes like methylene blue (MB) posing significant environmental and health risks. In the Philippines, the widespread pollution of water bodies from industrial effluents, including synthetic dyes, further worsens the situation, highlighting the need for innovative and sustainable water treatment solutions. This research aims to investigate the use of coconut shell-derived activated carbon as an adsorbent for MB removal from aqueous solutions, exploring the impact of factors such as dosage, initial pH, and contact time on adsorption efficiency. The primary objective …

A Retrospective Descriptive Study Of Maternal Morbidity Based On Mississippi Poison Control Center Data, Laura Lee S. Beneke, Zariad Saran, Mallory Pullman, Jenna Davis, David Vearrier

Journal of Public Health in the Deep South

Maternal morbidity and mortality remain significant public health concerns in the United States, but particularly in Mississippi, which has one of the highest maternal mortality rates in the country. This study analyzes data from the Mississippi Poison Control Center (MPCC) from January 2020 through December 2024 to assess trends in exposures among pregnant women. A total of 168 cases were identified. Exposures were categorized as unintentional, intentional, adverse reactions, or unknown, with unintentional exposures (47.6%) being the most common, often due to medication misuse. Intentional exposures, often linked to suspected self harm (31.5% of cases), represented 39.9% of the total. …

Complete Issue - Vol. 13, Issue 4, Howard D. Southwood, Frances A. Cabaniss, Allen Cabaniss, Dawson A. Phelps, Robert W. Harrison, Charlotte Capers

Journal of Mississippi History

No abstract provided.

The Middle Ages And Mississippi: A Note, Frances A. Cabaniss, Allen Cabaniss

Journal of Mississippi History

No abstract provided.

Complete Issue - Volume 13, Issue 3.Pdf, Laura D.S. Harrell, John Mcintosh, Edward L. Mcmillan, Katy Mccomb Headley, Roscoe R. Hill

Journal of Mississippi History

No abstract provided.

Horse Racing In The Old Natchez District.Pdf, Laura D.S. Harrell

Journal of Mississippi History

No abstract provided.

Run For Your Lives!: Gender And The Runaway Scrape, James E. Crisp

Journal of Texas History

No abstract provided.

Comparing Students’ Engagement And Basic Psychological Needs Satisfaction In Blended And Traditional Learning Environments, Ryan Josh C. Suarez, Benedict Eric M. Adriano, Joeven A. Fabul Jr., Andrei Daniel Ken H. Go

DLSU Senior High School Research Congress

Student engagement has changed as a result of blended learning, a learning modality that combines in-person instruction with online course delivery. Beyond the models that are frequently studied, engagement in other blended learning environments must be examined using a clearly defined framework; hence, this study aims to address this gap. This study compared and measured the basic psychological needs and engagement levels of two student populations, enriched virtual blended learning and traditional face-to-face learning, using the Self-Determination Theory as a framework. 115 senior high school students participated in the data collection process; 39 used the enriched virtual model, and 76 …

A Comparative Analysis Of Maceration Extraction Methods And Their Efficacy In Biofilm Inhibition By Annona Muricata Leaf Extract Against Bacillus Subtilis, Mikylla Eunice G. Santos, Drew Antoinette T. Roxas, Ayumi B. Santos, John Albert D. Gurtiza

DLSU Senior High School Research Congress

Biofilms, ubiquitous microbial communities encased in a self-produced matrix, pose a significant threat to human health, industrial processes, and food safety. While synthetic antimicrobials are widely used, concerns about resistance and environmental impact drive the search for natural alternatives. Guyabano (Annona muricata), a tropical fruit known for its antimicrobial properties, shows potential as a natural antibiofilm agent. This study aimed to compare the impact of three different maceration extraction methods (aqueous, ethanolic, and methanolic) on the antibiofilm efficacy of A. muricata leaf extract against Bacillus subtilis biofilm. Each extract was subjected to a 96-well microplate biofilm inhibition assay, …

Loops: The Effects Of The Covid-19 Pandemic On Musicians’ Promotional Strategies In Sta. Rosa City, Laguna, Francine Alana B. Bautista, Gavin G. Kanapi

DLSU Senior High School Research Congress

Music promotion is often overlooked by aspiring musicians despite its importance in building an audience and creating an identity. This is especially true for independent musicians, who must either consult with promoters or create promotional materials themselves. The COVID-19 pandemic affected many sectors of the music industry and has marked a greater shift in promotion methods, encouraging a more digital approach to promotion. The study aims to look into the methods that independent musicians in Sta. Rosa use to promote their music after the pandemic. This also includes exploring the effects of the pandemic on these methods and the differences …

Sustainabiliteam: Shaping Eco-Conscious Advertising Using Photography, Aliza Kayla D. Guinto, Misaki S. Sadakata

DLSU Senior High School Research Congress

Social media influencers have redefined marketing by leveraging creative outputs such as reels, promotional materials, and original content to engage audiences. This research examines the potential of offline advertisements in an era dominated by a fast-paced digital media landscape, particularly through the lens of photography. It explores how advertisements influence local consumer awareness, attitudes, and behaviors, identifying both challenges and opportunities in marketing for sustainability. Using a qualitative approach, this study analyzes beauty product consumption across different age groups, from teenagers to older adults, and investigates consumer perceptions of effective advertising, sustainability, and key purchasing factors influencing consumer decisions. Findings …

Pathway Mapping Of Bioactive Compounds In Guyabano (Annona Muricata) Leaves On Anti-Diabetic Proteins Found In Homo Sapiens, Miryea Andrea A. Cayetano, Gabrielle Micha C. Co, Akhicko Beatrize T. Facilan, Jane Abigail M. Santiago

DLSU Senior High School Research Congress

Diabetes is a global health concern, leading to increased efforts to explore alternative treatments. Annona muricata, commonly known as Guyabano, is frequently used in traditional medicine, particularly its leaves and fruits, to alleviate symptoms associated with diabetes. However, despite its widespread use, limited research has explored the molecular mechanisms of bioactive compounds in A. muricata leaves in relation to anti-diabetic effects. This study aimed to bridge this gap by using in silico methods to examine the interactions between bioactive compounds from A. muricata leaves and human proteins implicated in anti-diabetic activity. Bioinformatics tools, including molecular docking and pathway mapping, …

Spatiotemporal Analysis Of Spodoptera Frugiperda (Fall Armyworms) Risk Using Known Growth Indicators In Select Municipalities Of Tarlac, Philippines, Katherine Samantha Salvador Manaig, Frans Josef Gotis De Justo, Mary Dominique Vargas Padilla, Reese Gianna Hernandez Gollod

DLSU Senior High School Research Congress

In recent years, Fall Armyworm (FAW) reports have steadily increased in warmer regions of various continents, causing significant losses in the agricultural sector, especially in staple crops such as rice, corn, and sorghum. The pest species travels across warmer areas by riding wind currents and targeting crops. To combat FAW, farmers have developed and improved pesticide formulas and other control strategies, as the pest has shown resistance to many commercial pesticides used. However, FAW monitoring remains a challenge for the agricultural sector. With the agricultural nature of the Philippines, it is crucial to monitor the pest's spread behavior in order …

Star Apple (Chrysophyllum Cainito) Leaf & Banana (Musa Acuminata) Peel Extract As A Hydrophobic Coating For Cardboard, Ferdie Fernandez Cajucom, Missy Noelle Ciriaco Velasco, Mary Catherine Membrare Alfonso, Crizzane Ramos Barsatan, Sharee Mae Advimcula Tamayo, Ashley Irish Valdez Balneg, David Isaiah Sales Gengania, Rivi Nabusan Wacnisen

DLSU Senior High School Research Congress

This research aims to find a natural way to make cardboard more water-resistant, increasing its recyclability and lifespan by using banana peels (BP) and star apple leaves (SAL). The inspiration behind this study comes from commercial coatings that are made from synthetic chemicals, such as fluoropolymers and silicone, that can harm the environment. Since cardboard easily absorbs water, the researchers tested different mixtures of BP and SAL to determine which combination works best as a coating. Using ethanol maceration to extract hydrophobic compounds, epicuticular wax was obtained from SAL, while powdered BP was macerated with hexane. The extracts were concentrated …

Impact Of Sugar Content And Ph Levels On The Microbial Load Of Street Food Dipping Sauces, Maffae Ashley L. Padernal, Yeinniel Miguel D. Cao, Jamie M. Velasquez

DLSU Senior High School Research Congress

Foodborne illnesses cause millions of deaths annually, posing a significant public health concern, particularly in regions with thriving street food cultures like the Philippines. This study investigated how sugar content and pH levels in street food dipping sauces affect microbial growth. Six sauce samples were prepared with varying sugar (25g, 50g, 75g) and pH levels (4.0, 3.6, 3.1). Microbial load was measured using the Standard Plate Count (SPC) method. While a moderate sugar concentration (50g) showed the lowest microbial load, this difference was not statistically significant (p=0.77). However, pH significantly impacted microbial growth (p=0.0034), with pH 3.6 showing the lowest …

Optimizing Sea Grapes (Caulerpa Lentillifera) Extract Concentration For Maximum Larval Mortality, Bench Russel D. Caol-Olan, Nicole Shane D. Sabaldan, Jullian Jake D. Labastida, Steffany C. Illagan, Herlynne C. Mallari, Raven Pauline A. Ebuen, Jairra Lysandra M. Atun, Deness Patricia Lauress P. Turla, Dana Kriesha E. Prudente, Christian Dale Luis F. Valenzuela

DLSU Senior High School Research Congress

This research investigates the larvicidal potential of Caulerpa lentillifera, commonly known as sea grapes. Specifically, it aims to determine whether 0%, 10%, 20%, or 30% concentrations of C. lentillifera extract can significantly increase mosquito larval mortality after four hours of exposure. The experiment followed standardized guidelines established by the World Health Organization (WHO), and larval mortality was calculated using Abbott’s formula. This research investigates the larvicidal potential of C. lentillifera, commonly known as lato sea grapes. Specifically, it aims to determine whether 0%, 10%, 20%, or 30% concentrations of C. lentillifera extract can significantly increase mosquito larval mortality after four …

Free Speech And Synthetic Lies: Deepfakes, Synthetic Media, And The First Amendment, Jacob R. Bourgault

Student Journal of Information Privacy Law

The rapid evolution of deepfakes and synthetic media presents unique and pressing challenges to the scope and resilience of First Amendment protections. While these technologies can be used creatively or comedically, they are increasingly weaponized in ways that can cause substantial harm: from non-consensual pornography and fraud to manipulated political content and reputational sabotage. As the production of synthetic media becomes more accessible and convincing, courts and lawmakers are being called upon to resolve the tension between free expression and individual dignity, autonomy, and privacy. This Article examines whether existing exceptions to First Amendment free speech—such as obscenity, defamation and …

Modulation Of Pulmonary Epithelial Paracellular Permeability By Pneumolysin From Streptococcus Pneumoniae, Alexandra S. Tamayo Moreira

Biology Theses

Pneumolysin (PLY), a key virulence factor of Streptococcus pneumoniae (S. pneumoniae), disrupts airway epithelial barriers, yet its cellular and molecular mechanisms remain poorly understood. We aim to elucidate recombinant pneumolysin (rPLY)’s effects on Calu-3 bronchial epithelial barrier integrity and underlying pathways. This study investigates the effects of non-lytic and lytic PLY concentrations (5, 15, 30 µg/mL) to test the hypothesis that PLY increases epithelial paracellular permeability by affecting the anatomy and physiology of epithelial tight junctions. To address the hypothesis that PLY increases paracellular permeability through disruption of tight junction integrity in Calu-3 cells in a time- and dose-dependent …

Influence Of Age At Harvest And Packaging Conditions On Color Stability Of Bovine Psoas Major Muscle, Xiao Lu, Xin Luo, Sulaiman K. Matarneh

Nutrition, Dietetics, and Food Science Student Research

This study investigated the effect of cattle age on the color stability of Psoas major steaks under different packaging conditions, including polyvinyl chloride (PVC) film packaging, high-oxygen-modified atmosphere packaging (HiOx-MAP), and carbon monoxide modified atmosphere packaging (CO-MAP), over a 14-day storage period. Steaks from old cows had a greater myoglobin content than those from young animals (p < 0.05), resulting in a darker beef color. Regardless of animal age, steaks in PVC and HiOx-MAP exhibited poor color stability during storage, as evidenced by the low color intensity and high surface metmyoglobin (MetMb; p < 0.05). These samples also exhibited a reduced MetMb reducing activity (MRA) and oxygen consumption rate (OCR) and higher 2-thiobarbituric acid reactive substance (TBARS) levels, with these effects being evident in steaks from mature cows. In contrast, steaks stored in CO-MAP had greater redness, MRA, and OCR, along with lower surface MetMb and TBARS levels (p < 0.05), contributing to the limited discoloration of steaks from both age groups. These findings suggest that while both harvest age and packaging affect the shelf stability of bovine steaks, packaging plays a more significant role. CO-MAP proved to be more effective than aerobic packaging and may mitigate age-related differences in color stability.

The Use Of Culturally Responsive Mentor Texts For Literacy Development In An Elementary Classroom, Ashley Vernon

Theses and Dissertations

The purpose of this study was to examine the effectiveness of Culturally Responsive Mentor Text in literacy development in an elementary classroom. Students in this study demonstrated increases in overall literacy development in the areas of comprehension and verbal discourse when paired with Culturally Diverse texts throughout the study. This study revealed that students were able to make more connections with texts and increase discussion when recognizing unfairness and overcoming struggles.

Ecological Acclimation: A Framework To Integrate Fast And Slow Responses To Climate Change, Michael Stemkovski, Joey R. Bernhardt, Benjamin Wong Blonder, John B. Bradford, Kyra Clark-Wolf, Laura E. Dee, Margaret E. K. Evans, Virginia Iglesias, Loretta C. Johnson, Abigail J. Lynch, Sparkle L. Malone, Booke B. Osborne, Melissa A. Pastore, Michael Paterson, Malin L. Pinsky, Christine R. Rollinson, Oliver Selmoni, Jason J. Venkiteswaran, Anthony P. Walker, Nicole K. Ward, John W. Williams, Claire M. Zarakas, Peter B. Adler

Wildland Resources Faculty Publications

1. Ecological responses to climate change occur across vastly different time-scales, from minutes for physiological plasticity to decades or centuries for community turnover and evolutionary adaptation. Accurately predicting the range of ecosystem trajectories will require models that incorporate both fast processes that may keep pace with climate change and slower ones likely to lag behind and generate disequilibrium dynamics. However, the knowledge necessary for this integration is currently fragmented across disciplines.

2. We develop ‘ecological acclimation’ as a unifying framework to emphasize the similarity of dynamics driven by processes operating on dramatically different time-scales and levels of biological organization. The …

Algorithms Of Eversion: Contemporary States And Digital Sovereigns, James Libengood

USF Tampa Graduate Theses and Dissertations

The rapid development of artificial intelligence (AI), the internet of things (IoT), and digitization have pushed digital sovereignty to the top of the governance agenda in the 21st century. This notion is expanded upon in this work through seven chapters encompassing theoretical underpinnings, methodological frameworks, and real-world case studies. It shows how multinational corporations dominate digital coloniality, and how the merge of physical and digital reality or eversion poses challenges. The study compares contrasting governance approaches, such as the European Union’s General Data Protection Regulation (GDPR), geared to ethical AI and data protection, versus BRICS nations’ stance on data localization …

Benchmarking Model Predictive Control And Reinforcement Learning-Based Control For Legged Robot Locomotion In Mujoco Simulation, Shivayogi Akki, Tan Chen

Michigan Tech Publications

Model Predictive Control (MPC) and Reinforcement Learning (RL) are two prominent strategies for controlling legged robots. RL learns control policies through system interaction, adapting to various scenarios, whereas MPC relies on a predefined mathematical model to solve optimization problems in real-time. Despite their widespread use, there is a lack of direct comparative analysis under standardized conditions. This work addresses this gap by benchmarking MPC and RL controllers on a Unitree Go1 quadruped robot within the MuJoCo simulation environment, focusing on a standardized task, straight walking at a constant velocity. Performance is evaluated based on disturbance rejection, energy efficiency, and terrain …

Week Of June 23, 2025, Student Life

College, School and Department Newsletters, Magazines, and Journals

Your summer hub for events, resources and updates.

Updated Take Estimates Of Marine Turtles In The Guajira Peninsula, Venezuela, Royner Carrasquero-Labarca, Matthew Ware, Jordano Palmar, Daniela Rojas-Cañizales, Héctor Barrios-Garrido

School of Earth, Environmental, & Marine Sciences Faculty Publications

The Guajira Peninsula is one of the most important foraging grounds areas for marine turtles in Venezuela. There, five species converging: the green turtle, hawksbill, loggerhead, leatherback, and olive ridley. The Wayuú indigenous people are inhabits of the Guajira Peninsula. They have a close relationship with these animals, and for generations, they have used these species as subsistence resources. Marine turtle take has always occurred in this area and has historically been high; it is still happening now, but the current extent is unknown. For that reason, we aimed to assess and update the estimate for marine turtles take in …

Disability And Leadership: Barriers And Business Culture Perspectives, Ernest Edward Garrett

Walden Dissertations and Doctoral Studies

Persistent disparities in employment rates between people with disabilities (PWDs) and people without disabilities (PWODs) indicate that PWDs continue to face barriers and challenges to employment opportunities. The research problem is the underrepresentation of PWDs in leadership positions within business cultures and persistent barriers and challenges faced by human resource managers (HRMs) and leaders concerning their hiring and retention. The purpose of this qualitative descriptive study was to explore the varying perspectives of business leaders with disabilities (LWDs) and HRMs concerning the barriers and challenges associated with hiring and retaining PWDs for leadership roles. Critical realism, universal design, and human …

Cinematic Abuse: A Critical Analysis Of Disney’S “Happily Ever After” In The Little Mermaid, Aladdin, And The Princess And The Frog, Erin Michelle Gough

USF Tampa Graduate Theses and Dissertations

This dissertation examines the manner in which three animated Disney princess films cultivate stereotypes and gendered behaviors consistent with domestic violence and thereby encourages viewers to accept and tolerate abuse against women. I argue that due to the dangerous, constricting, and sexist gender roles encouraged by the Walt Disney Corporation, films prime young girls and boys to react to social situations and encounters in a way that mirror the characters’ reactions. Because of the films’ entertainment value, most of the characters’ inappropriate, stereotypical, and often violent behaviors either go unnoticed or are passively accepted. The violence does not have to …