Digital Commons Network^™

Acting On Behalf Of An Endangered Species - A Student-Led Initiative To Protect The San Joaquin Kit Fox (Vulpes Macrotis Mutica) On The Csub Campus, Antje Lauer, Sarah Alame, Brittney Beck, Lucas Hall

CSU Journal of Sustainability and Climate Change

California State University Bakersfield (CSUB) is the only campus in the U.S. that has supported an endangered canine species on its campus grounds for many decades. Deprived of its prime habitat, open grassland, the San Joaquin kit fox (SJKF) (Vulpes macrotis mutica) was able to adapt to urban areas in the San Joaquin Valley of California. The presence of an endangered species on campus grounds comes with responsibilities and requires knowledge of the Endangered Species Act (ESA). In the spring of 2023, students and faculty observed several violations of the ESA by CSUB Facilities Management due to ground disturbance and …

Kartera, Arwyn G. Alignay, Julianne Skye Alexandria A. Antonio, Jacob Mark R. Carlos, Lance P. Ercia, Ricardo P. Macatangay Iii

DLSU Senior High School Research Congress

Kartera was formed in July 2024, bridging the gap between physical and digital wallets while combining a convenient form and sustainability. These factors distinguish its product offerings from a recently stagnant set of commercial wallets. The venture is in an early growth stage in the wallet industry, having recently launched its flagship product. The product, a no-fold wallet constructed from Piñatex, a sustainable pineapple leather alternative, was launched in February 2025 during the ABM Bazaar and initiated the framework for design protection for future products. Kartera functions under the sole proprietorship of Lance Ercia, who is supported by four officers: …

Cytotoxicity Of Ageratina Riparia (Mistflower) Biosynthesized Silver Nanoparticles In Allium Cepa Assay, Jharred Martinez, Kathryz Beyonce B. Fajardo, Althea Marie A. Navalta

DLSU Senior High School Research Congress

The use of green-synthesized nanoparticles offers a promising route toward eco-friendly and biocompatible alternatives in biomedical research. This study aimed to assess the cytotoxicity of silver nanoparticles (AgNPs) biosynthesized from Ageratina riparia extract. Given the growing interest in plant-mediated nanoparticle synthesis for safe therapeutic applications, evaluating their biological effects is crucial. The extract was obtained through maceration, and green synthesis was conducted using silver nitrate solutions (1 mM, 3 mM, 5 mM). The mixtures were boiled to isolate nanoparticle pellets, which were then redispersed in distilled water for use as treatment liquids in the Allium cepa assay. Results showed that …

The Role Of Social Media In Philippine Disaster Management: A Systematic Literature Review, Maxim Alexandrite V. Inoferio, Henry Joshua A. Hernandez, Rich Angelo P. Santos

DLSU Senior High School Research Congress

Despite the Philippines being one of the world’s most disaster-prone countries, research on the role of social media in its disaster risk management remains limited. This study addresses that gap through a systematic review of existing literature on social media use in Philippine disaster risk management. Results show that social media is primarily employed in response to typhoons and earthquakes, while its application to other hazards such as COVID-19, floods, and vegetation fires remains underexplored. Usage is concentrated in the response and recovery phases, with minimal attention to prevention and no studies focused on mitigation. Notable best practices include real-time …

Sa Tibo(K) Ng Kamera: Pagmamapa Sa Dating Ng Mga Lesbiyanang Tauhan Sa Pelikulang Pilipino (1982–2023), Miguel Jae P. Asido, Samuel P. Bernardino, Kataryna Theriz M. Dato-On, Armione Kiera M. Magadia

DLSU Senior High School Research Congress

Layon ng pananaliksik na makapag-ambag sa napakalimitadong diskurso sa lesbiyana sa Pelikulang Pilipino na pawang nakatuon sa pagkalesbiyan at identidad. Tinumbok ng pag-aaral ang dating ng anim na lesbiyanang tauhan gamit ang modelo ni Tiongson (2022), na sumandig sa Dating ni Lumbera (2000), upang sumentro sa pagka-Pilipino ng likhang-sining. Natuklasan ang mga temang nakaaapekto sa dating ng mga lesbiyanang tauhan: (1) Pagpapahalaga sa Propesyon, (2) Pagtutulad sa Lalaki at mga Istiryotipo, (3) Pagkakaila sa Sekswalidad, (4) Pagbubunsod ng Pandalawang-Kasariang Pamantayan ng Lipunan, at (5) Pagturing na Makasalanan. Binubuo ito ng mga elemento ng pananamit, kilos, lengguwahe, at espasyo. Batay sa …

Savior Complex, Stereotyping, Sensationalism Of The Filipino Poor: Critical Media Analysis Of Raffy Tulfo In Action’S Charity Episodes, Charisse Anne C. Bautista N/A, Jamella P. Jamolangue N/A

DLSU Senior High School Research Congress

In the Philippines, one of the significant issues in society is the continuous growth of poverty and inequality. In the field of media, poverty porn is a word used to describe any content that exploits the images and narratives of impoverished individuals to gain sympathy, notoriety, and funds for a particular cause. However, there is a lack of research on poverty porn in the social media context, especially in the Philippine landscape. Thus, this study focuses on the portrayal of poverty in social media, specifically in the charity content of Raffy Tulfo in Action YouTube channel. Inductive content analysis was …

Yellow Card Declined: Lived Experiences Of Embo Residents' Healthcare Access After The Makati Vs. Taguig Ruling, Wazna L. Amil, Koreen F. Bagapuro, Marvin William J. Alberto

DLSU Senior High School Research Congress

In 2023, the three-decade territorial dispute between the cities of Makati and Taguig ended when the Supreme Court ruled to transfer the ten Embo barangays to the latter. One significant consequence of this ruling is the discontinuation of assistance to former Makati residents, particularly healthcare benefits. Understanding how this ruling affects residents’ experiences can provide insights for policy recommendations promoting the United Nations Sustainable Development Goals 3 and 16. This phenomenological study, grounded in the Adapted Levesque’s Conceptual Framework, gathered data from six participants who were at least 10-year residents of Embo barangay and beneficiaries of Makati and Taguig public …

Video: A Media Revolution?

Communication Research Trends

Revolutions connected with technical inventions have been proclaimed, rightly and wrongly, so often in the recent past that it would seem appropriate to look for another expression just to avoid the danger of trivialization. But all the evidence says that this time we are in the presence of a real revolution and that we should call it by its name.

As a true revolution, the emergence of video has been like an explosion, full of energy and even passion, provoking divisions, inflicting wounds, destroying, upsetting and, also, raising hopes and promising new riches in the so-called "television wasteland". It will …

Costumes, Connections, And Community: An In-Depth Exploration Of The Dynamics Within The Cosplaying Community, Carlo Lagunilla Ortiz, Gabriel Louie Fil Limpin Darang, Danial Mendoza Shomalzadeh, Rodnae Lu Palmito Cayat, Jorge Carle Fontanilla Dacaimat, Carl Rangel Buslayan Dangsi

DLSU Senior High School Research Congress

Cosplay is a fun way to express oneself through costumes and roleplay that has given rise to a vibrant global community. While various studies have explored certain elements of this phenomenon, the cosplay community remains partially unexplored. This research aims to further investigate the dynamics of the cosplay community, providing meaningful insights into the identity processes, motivations, sense of belonging, and creativity that define it. Using in-depth interviews and online questionnaires, the research examines how cosplayers interact with community-building, creativity, identity, and self-expression. Findings reveal that cosplayers actively engage with these aspects as they inspire, interact, and guide others, fostering …

Iah-Net (Informative Air Quality And Heat Index Network): Drone-Assisted System For Real-Time Air Quality And Heat Index Monitoring, Brent Breo B. Magbanua

DLSU Senior High School Research Congress

Air pollution and rising temperatures threaten public health and safety, necessitating advanced monitoring solutions. This study developed a drone-assisted system for autonomous air quality and heat index monitoring, ensuring real-time alerts even without human presence. By integrating the K-Nearest Neighbors (K-NN) machine learning algorithm, the system provides an innovative and cost-effective approach to identifying environmental risks and raising awareness. The system consists of a Drone system, ESP32, MQ-135 gas sensor, and DHT11 temperature and humidity sensor for data acquisition. Software development includes implementing the K-NN algorithm and calibrating sensors to enhance classification accuracy. The system categorizes air quality as SAFE, …

From Forest To Table: A Meta-Analysis On The Native Fruit Food Resources Of The Philippines, Gwyneth Anne G. Taban, Jonathan B. Gutierrez, Jocelyn Louise S. Gan, Patricia Elizabeth Y. Yu

DLSU Senior High School Research Congress

The Philippines boasts a rich plant biodiversity as it is located in the tropical region of the Earth. This opens up many opportunities for ethnobotanical research, which studies the many practical and cultural aspects of the plants present within a region. Native fruits are fruits grown in a specific region that have been neglected by the country’s market, as it prioritizes industrialization over cultural and native traditions and practices. As a result, research on native fruits is becoming few and far between. The researchers see this as a missed opportunity to widen and enrich both the country’s biodiversity and culture. …

Instructor Evaluation Of Alchemi: An Immersive Serious Game For Teaching Chemistry, Kyra Shanelle Martinez Velez, Joshua Logdat Tan, Jedrik James Morales Gayamat, Evan Panugot Gerarcas

DLSU Senior High School Research Congress

The Philippine science education faces challenges, including low student achievement. This study explored Alchemi, a novel immersive serious game (visual novel format), designed to enhance chemistry laboratory learning. Alchemi integrates Game-Based Learning (GBL) and Strategic Intervention Material (SIM) principles. Six chemistry instructors evaluated Alchemi's effectiveness using the MEEGA+ Game Quality Scale, assessing player experience and usability. Results showed highly positive instructor perceptions of Alchemi's engagement (high median scores for focused attention, challenge, social interaction, confidence, perceived learning), fun (median 4.25), relevance (median 4.75), and satisfaction (median 4.5). Usability aspects (learnability, operability) also scored highly (median 4.5) and aesthetics …

Penju: Smell Good, Cuddle Hard, Bernadine Grey Crisostomo Castro, Sam Arbelle Caoili Santos, Ryianne Nicole Gueriña Sta Ana, John Rafael Nash Macahis Borromeo, Kimberly Landayan Dela Cruz

DLSU Senior High School Research Congress

Formed in 2024, Penju was conceptualized by four senior high school students as a response to rising levels of stress, anxiety, and sleep deprivation, especially among Gen Z. Penju offers a unique plush toy infused with aromatherapy, combining comfort and wellness. The business is currently developing, with prototype testing and early marketing activities such as social media promotion, school-based pre-orders, and community outreach already initiated. Penju operates within the health and wellness sector, focusing on stress relief and sleep improvement. Its innovation lies in integrating calming scents into a cuddly plush toy, supported by research on the impact of aromatherapy …

Assessing The Antimicrobial Activity Of Avocado (Persea Americana) Peel Extract: Microbial Load Inhibition On Chicken Meat, Geneva Gloelle S. Tejada, Prescious Ñina S. Quinan, Chloie Marjorie D. Ganggangan, Angelica M. Nadonga

DLSU Senior High School Research Congress

Bacterial contamination of chicken meat poses significant health and economic risks globally. This study explored the potential of Avocado Peel Extract (APE) as a natural antimicrobial agent to inhibit microbial load. Raw chicken meat samples were treated with varying APE concentrations (10%, 1%, 0.1%) and a negative control. Microbial Load Count (MLC), measured in colony-forming units per gram (CFU/g) via Aerobic Plate Count (APC) after 24-hour incubation at 37°C showed the following mean values: Control (1.73E+09 CFU/g), 10% APE (1.83E+09 CFU/g), 1% APE (3.03E+09 CFU/g), 0.1% APE (2.17E+09 CFU/g). One-way Analysis of Variance (ANOVA) revealed no statistically significant difference (p=0.149). …

Cytotoxicity Of Glucosinolates Extracted From Green Cabbage (Brassica Oleracea Var. Capitata), Albert Ii G. Gonzales, John Henrick M. Monotilla, Andrea Vera D. Hellera, Julia Alexa T. Reyes, Empress Kharen M. Villena, Suzzeth U. Dizon

DLSU Senior High School Research Congress

Cancer is a large group of diseases characterized by the uncontrolled growth of abnormal cells, which can invade any organ or tissue. According to WHO (2025), cancer is the leading cause of death worldwide, accounting for nearly 10 million deaths in 2020, or approximately one in six deaths. Despite significant advancements in cancer treatments over the years, such as radiation and chemotherapy, commonly used post-surgical complementary therapies can cause adverse side effects, including nerve damage, fatigue, and chronic pain. Glucosinolate (GSLs) is a naturally occurring compound found in cruciferous vegetables, such as green cabbage. GSLs produce metabolites exhibiting anticancer properties …

The Effect Of Tropical Temperature Conditions On Salmonella Typhimurium Growth, Elyza Dionne A. Constantino, Anastasia Charlotte D.C. Pabriga, John Vergel Pamintuan, Mark Daniel A. Velasco

DLSU Senior High School Research Congress

Salmonella contamination remains a significant health concern, particularly in environments where temperature fluctuations influence bacterial survival. While previous studies have identified temperature as a key factor in microbial growth, the specific effects of varying heat levels on Salmonella enterica serovar Typhimurium concentration require further investigation, particularly in the context of the Philippines. This study examined bacterial concentration across different temperatures by assessing S. typhimurium under controlled laboratory conditions at 37 °C, 42 °C, and 47 °C. Microbiological analysis quantified bacterial colonies (CFU/mL), revealing a decreasing trend in S. typhimurium concentration as temperature increased. The highest concentration was observed at …

Beyond The Dark Hours: A Qualitative Exploration Of The Experiences, Coping Strategies, And Workplace Dynamics Of Graveyard Shift Workers, Jerelie Robert Muyalde Alcause, Rhuss Maico Mangahas Bartolome, Arbee Ray Tokyas Akit, Ian Patrick Pedro Aquino, Salvador Franz Niño Vargas Aquino, Jayvee Ysulan Bagaporo

DLSU Senior High School Research Congress

Graveyard shifts are often correlated with poor working hours and may lead to a reduced level of cognitive and emotional function. Current studies focus on the physical effects of this schedule but often overlook the unique challenges of maintaining a work-life balance under such conditions. Through in-depth interviews, this study explores the psychological and emotional impact of long-term graveyard shifts, along with the coping mechanisms workers use to balance their work and personal lives. The findings of this study reveal that graveyard shift workers commonly experience social isolation, often distancing themselves from friends and family. Emotionally, they report feelings of …

A Vector Autoregressive (Var) Model For The Hourly Forecasting Of Climatological Data In General Santos City, Jezzu Morrisen C. Quimosing, Feevol S. Into, Ayeesha Kate N. Castro, Criss Allyn C. Hongoy, Bai Ashfahana A. Abdullah, Ma. Sofia Franchesca P. Dizor, Leo James M. Podador, Joshua Caleb G. Pagalan

DLSU Senior High School Research Congress

Through multivariate time series exploration, the Vector Autoregressive (VAR) model was developed to predict marked climatological data for General Santos City, Philippines. The dataset, which covered the period from January 01, 2001, until June 30, 2024, was obtained from the NASA POWER API and included crucial variables: surface pressure, specific humidity, wind speed, air temperature, precipitation, and UV irradiance. The study recorded significant diurnal and seasonal trends, which could be observed in the surface pressure, specific humidity, air temperature, and UV irradiance that displayed the predictable cycles. Precipitation demonstrated limited seasonality, as it represented the localized tropical rain patterns. The …

Plastilapia: Potential Of Tilapia (Oreochromis Niloticus) Scales For Creating Bioplastics, Rain Andrea Q. Matilde

DLSU Senior High School Research Congress

Plastic waste is a global problem affecting General Santos City (GenSan). Though brown paper bags are alternatives, they tear easily and may cause deforestation. South Cotabato, including GenSan, produces large amounts of tilapia. Their discarded scales contain collagen that can be used to create sustainable biopolymers. This study explores the potential of tilapia scales for creating bioplastics, focusing on tensile strength and biodegradability as eco-friendly alternatives to plastics.

For this study, one kilogram of raw tilapia fish scales was used. The scales were cleaned, oven-dried at 60°C for three hours, ground, and soaked in a 0.1N sodium hydroxide solution for …

Identification Accuracy Of Cost-Effective Visible (Vis) To Near-Infrared (Nir) Sensor As7265x On Plastic Waste In The Philippines, Ma. Tricia Jasmin M. Ocho, Chloe Lizanne R. Bravo, Jennika Love R. Loyola, Kierra Jamielle V. Taroma, Leianne Nina Arabelle E. Lampayan

DLSU Senior High School Research Congress

In the Philippines, plastic waste persists as a significant issue caused by the widespread use of single-use plastics and the lack of recycling systems. The lack of proper systems made waste segregation and identification inefficient and disorganized. Past studies explain the use of VIS/NIR in plastic segregation and potential of spectral frequencies. However, there is limited investigation of the AS7265x sensor’s consistency when integrated with machine learning to further improve detection reliability; thus, the study evaluates the effectiveness of the AS7265x triad spectroscopy sensor, incorporated with machine learning algorithms. An experimental setup was created using the AS7265x sensor and Arduino …

Enhancement Of Phenolic, Flavonoid, And Biological Activi-Ties In Fermented Pea (Pisum Sativum) Extracts Via Frac-Tionation, Anastasia Fitria Devi, Euis Filailla, Setyani Budiari, Hani Mulyani, Nina Artanti

Karbala International Journal of Modern Science

In this study, peas were fermented for 24 h using either Rhizopus oligosporus or Aspergillus oryzae. The resulting fermented peas, along with unfermented peas, were extracted using either methanol or water. The methanol extracts showed greater improvements following fermentation compared to the water extracts, as shown by the IC₅₀ values, which progressed from >500 to ≤200 µg/mL, as determined via the 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) method. Consequently, further fractionations focused on the methanol extracts of the fermented peas. Six bands were resolved on thin-layer chromatography plates for each extract. Their positions demonstrated significant effects (p < 0.05) on bioactivity. The bottom band (i.e., Band 1) exhibited approximately 70% inhibition, as determined via the 2,2-diphenyl-1-picrylhydrazyl (DPPH) method and 35% inhibition according to the ABTS method, while the other bands displayed lower to negligible inhibition. Band 5 displayed 85–97% cytotoxicity, while Band 1 did not show any cytotoxicity. The total phenolic content (TPC) of Band 1 and the total flavonoid content (TFC) of Band 6 increased 4.4- and 8.9-fold, respectively, compared to those of the unfractionated extracts. Furthermore, a correlation analysis revealed a strong correlation between TFC and the three observed bioactivities. The different cultures significantly (p < 0.05) affected the antioxidant activity of either the fermented pea extracts or the resulting bands, as determined via the DPPH method. These results indicated that fermentation enhanced the antioxidant activity of peas. Subsequent fractionations separated and concentrated compounds from the fermented peas, improving the bioactivities, TPC, and TFC of the resulting fractions.

Synthesis Of Gold Nanoparticles Using Hordeum Vulgare Leaf Extract And Their Antibacterial Activity, Mohamed M. Sehree, Shakir Ghazi Gergees, Pakhshan A. Hassan

Karbala International Journal of Modern Science

Plant extracts and gold nanoparticles are promising alternatives for combating antibiotic resistance in light of the increasing bacterial resistance. Leaf extract of barley was used to synthesize gold nanoparticles (AuNPs). Barley gold nanoparticles (BL-AuNPs) were produced by adjusting some reaction parameters. These BL-AuNPs were characterized through employing the UV-visible spectroscopy technique, the scanning electron microscope (SEM), Fourier transform infrared spectroscopy (FTIR), and energy dispersive X-ray spectroscopy (EDX). BL-AuNPs were tested for antibacterial efficacy against two strains of Gram-negative bacteria, clinically isolated and considered as multidrug-resistant pathogens, Acinetobacter baumannii and Salmonella typhi. The antimicrobial efficiency of the compounds was evaluated …

The Impact Of Microplastics On Water Quality, Heavy Metals, And Health Risks In Bioflocbased Tilapia Farming Systems, Dian Rizky Afriani, Deswati Deswati, Rahmiana Zein, Putri Ramadhani

Karbala International Journal of Modern Science

Along with microplastics, pollution of heavy metals, including iron (Fe), zinc (Zn), and copper (Cu), in freshwater ecosystems poses a serious environmental threat that can adversely affect human health. This study investigates the use of biofloc technology to reduce microplastic and heavy metal contamination while improving water quality. By utilizing microbial aggregates that capture microplastic and heavy metal particles through flocculation and biosorption processes, four experimental treatments were applied, i.e.: A (without biofloc and microplastics); B (with biofloc, without microplastics); C (with biofloc and low-density polyethylene microplastics); and D (with biofloc and high-density polyethylene microplastics). The results indicate that fish …

An Artist Takes Flight, Sarah Moss

The Voice

No abstract provided.

Dr. John Olthoff Reflects On 36 Years At Dordt, Sarah Moss

The Voice

No abstract provided.

Missions Upside Down, Jennifer Vermeer

The Voice

No abstract provided.

Moving A Maxillary Incisor Across The Midline For Substitution Of Contralateral Missing Incisor In A Multiple Anterior Teeth Missing Patient, Ling-Yu Huang, Chun-Liang Kuo, Chun-Hsiu Yang, Ting-Wei Liu

Taiwanese Journal of Orthodontics

Loss of permanent maxillary incisor causes a significant esthetic problem, and there are various treatment options for rehabilitation. Moving the contralateral tooth across the facial midline for substitution of missing tooth is a possible treatment alternative for closing the maxillary anterior space.

This report presents an unusual treatment for a bimaxillary protrusion patient who typically requires premolar extraction to improve the convex profile. However, due to multiple missing anterior teeth, the left maxillary central incisor was moved across the facial midline to substitute the absent contralateral tooth, resulting in an improved profile after treatment.

The case was an 18-year-old female …

Supporting The “Feelings And Language Of Thinking” And Meaning-Making In Elementary Student-Directed Inquiry Projects, Katarina N. Silvestri

The Language and Literacy Spectrum

This qualitative study investigates how three teachers attend to and pedagogically support socioemotional aspects of fifth-grade students’ learning during student self-directed inquiry projects called the Kids Inquiry Conference (KIC) using Spradley’s domain and taxonomic analyses of classroom observation and interview data. Theoretical underpinnings meet at the intersection of affective neuroscience, socioemotional competencies, and a Deweyan perspective of inquiry learning, emplacing this study within literature exploring the range of affective factors impacting elementary learners engaged in student-centered inquiry projects (e.g., identity work, motivation, self-regulation, etc.). KIC involved students self-selecting and developing research questions, designing a science activity, writing up a scientific …

“It’S Like Everything Changed:” Implementing A Blended Literacy Learning Intervention To Increase Engagement, Michael J. Hockwater

The Language and Literacy Spectrum

Sixth-grade Academic Intervention Services (AIS) students at Wyndemere Middle School (WMS) in Western New York demonstrated a lack of engagement in AIS English Language Arts (ELA) class. In hopes of increasing their engagement, the teacher-researcher implemented a blended learning intervention that incorporated aspects of the flipped classroom model and student-selected texts. The findings of this action research qualitative case study were promising, with many student participants expressing an increased sense of engagement and enjoyment of AIS ELA class.

Exploring Culturally Informed Approaches To Book Read-Aloud With Young Children, Raquel Plotka

The Language and Literacy Spectrum

Early childhood is a critical period for language and literacy development. One-way adults introduce children to the world of books is through picture books read-aloud. Adults from different cultural background engage in this activity differently, and to date, the early childhood field has emphasized a constructivist approach to book reading typical in individualistic cultures. Other approaches to reading books that are common in collectivist cultures have not been explored. The present study investigated the reading styles teachers (n = 40) use in naturalistic settings and compared the advantages of using individualistic versus collectivist styles related to children participation and …