Animo Repository - De La Salle University Research
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Investigating the Properties of Eco-Bricks Composed of Sawdust, Bamboo, and Varying Composition of Sugarcane Bagasse Ash and Portland Cement
No full textWith the construction industry contributing nearly 40% of global greenhouse gas emissions, there is a growing need for innovative and sustainable building materials. This research investigates a new eco-friendly concrete brick incorporating sugarcane bagasse ash (SCBA), sawdust, and bamboo fibers. Three eco-brick mixtures, each containing 2% bamboo fiber and 10% sawdust by weight but with varying proportions of Portland cement (PC) and SCBA, were tested against a standard brick for compressive strength, flexural strength, and water absorption. The optimal mixture, with 2% bamboo fiber by weight, 10% sawdust by weight, 85% PC, and 15% SCBA, exhibits compressive and flexural strength comparable to the conventional brick. While demonstrating lower water absorption than the other eco-brick variants, it falls short compared to the conventional brick. Although further optimization is needed to minimize water absorption, this research demonstrates the potential of utilizing repurposed waste materials like sawdust, bamboo fibers, and SCBA to create sustainable and competitive construction materials. This study contributes to the growing knowledge in sustainable construction by exploring alternative materials that can reduce environmental impact while maintaining desirable mechanical properties
A Bibliometric Analysis on Alternative Biodegradable Materials for Wound Dressing
No full textThe field of medicine has significantly progressed, particularly in the domain of material science and wound dressing research. This study aims to assess and evaluate the state of wound dressing research by discussing publications about alternative materials used, specifically the analysis of key metrics such as citations, common themes, and keywords. Using a bibliometric analysis, this study consolidated data from multiple databases for improved efficiency and data management. Furthermore, this paper identified trends, providing a foundation for future research endeavors and innovation in wound care and management
Assessing the Antimicrobial Activity of Avocado (Persea americana) Peel Extract: Microbial Load Inhibition on Chicken Meat
No full textBacterial 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). The lack of significant antimicrobial activity may be due to the absences of flavonoids in the APE, storage conditions, and the complex microbial community in chicken. Future studies should standardize avocado peel processing, optimize extraction, increase sample size, investigate more extended incubation periods, and analyze specific bacterial populations. This research, while not demonstrating significant antimicrobial activity, highlights the potential of agricultural waste for sustainable food preservation
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
No full textDespite 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 quality via meristematic growth. Three identical 1x1 m plots were used: shrubbing plots contained 12 basil plants, 6 “piko” tomatoes (Solanum lycopersicum), and 6 santan shrubs, while monoculture plots had 24 basil plants. Over 8 weeks, the basil plants were observed biweekly for height and width. Samples from each system were then tested for indole-3-acetic acid (IAA) using Salkowski’s Reagent, followed by computerized modeling to analyze root density. An independent t-test indicated a significant p-value for both the average width and height of the crops from the two systems, revealing that the plants grown through shrubbing outperformed those grown in monoculture. The IAA assay showed that the polyculture system crops had a higher concentration of the growth indicator through three trials. These results suggest that shrubbing could be a cost-effective alternative to currently-employed agricultural practices, particularly in medicinal plant cultivation
Investigating the Occurrence of Microplastic Contamination in Oreochromis niloticus (Nile Tilapia) Collected from Laguna de Bay
No full textMicroplastics continuously prove to be a problem that compromises the world\u27s environment and food supply. With the growing preference for plastic usage, there is an increasing need to analyze its environmental effects. This study aims to investigate the presence of microplastics in Oreochromis niloticus (Nile Tilapia) found in three selected fish pens surrounding Laguna De Bay. Impressions of the geographic location were made using GIS to gather five to six samples of O. niloticus in the towns of Kalayaan, Biñan, and Los Baños. The key fish parts dissected are the stomach, gills, gastrointestinal tract, liver, and muscle tissues. Gills, stomach, and muscle samples were subjected to 10% KOH and incubated at 40 degrees Celsius for 72 hours, while gastrointestinal samples were incubated at 20% KOH at 40 degrees Celsius for 72 hours. Visual identification of microplastics using a Nikon Eclipse Ei compound microscope was initially done. This yielded twenty-four tissue samples that tested positive for suspected microplastic contamination. Suspected positive samples were further analyzed using the Fourier Transform Infrared Spectroscopy (FTIR), with fifteen out of twenty-four samples detected FTIR peaks. Out of the fifteen samples, one was positively identified as microplastic, specifically, polyethylene, from the gastrointestinal tract of a fish collected from Biñan. Other samples contained non-plastic pollutants, indicating environmental contamination. This suggests a possible link to domestic and industrial waste due to its location near residential areas
Parkchers: Development of a Smart Parking Website for Enhancing Parking Management and User Convenience using YOLOv11
No full textComplex challenges in parking have been prevalent in metropolitan areas all over the world due to factors such as inefficient use of spaces, and rapid urbanization; this then has an effect towards worse traffic conditions, and possible environmental issues. While traditional efforts such as increasing parking infrastructure have been done, this study aims to focus on the development of a smart parking reservation system that integrates camera-based software for enhanced parking management. With the use of CCTV camera technology, the detection system was tested under different lighting scenarios to evaluate the system’s efficiency in terms of accuracy and consistency. Done under developmental research design, a parking reservation website was developed coinciding with the evaluation of the system’s ability to detect vacant and non-vacant spaces. The results showed that both precision and recall began at 91.56% and 90.06%, respectively, during the early morning hours and steadily increased throughout the day, surpassing 96.9% precision and 95.6% recall by mid-afternoon. This enhancement in detection accuracy is consistent with previous studies indicating that YOLO-based detection systems achieve their best performance in well-lit environments. Although the system successfully met the target threshold of ≥ 90%, tests conducted during nighttime revealed that factors such as low light, glare, and the presence of other objects continue to present challenges. Overall, the research highlights that an affordable, camera-based smart parking solution can substantially improve parking management, maximize space utilization, and elevate the user experience
Comparing the Effectiveness of Flight Simulation Games and Traditional Review in Learning Basic Aviation Concepts of Senior High School Students
No full textFlight simulation games, such as Microsoft Flight Simulator 40th Anniversary, provide a gamified and interactive platform that simulates real-world aviation experiences, making complex concepts more accessible and engaging for learners. Although gamification and simulation-based learning have gained popularity in educational contexts, there remains a scarcity of research evaluating their effectiveness specifically for teaching foundational aviation concepts in senior high school students. This quasi-experimental study aimed to fill this gap by comparing the academic performance of students exposed to simulation-based learning using Microsoft Flight Simulator to those who engaged in traditional review methods. A total of sixty Grade 11 students from National University Mall of Asia were randomly assigned to either a simulation group or a traditional review group. The simulation group used the flight simulator game, while the traditional group studied from a reviewer containing parallel information on basic aviation concepts such as aircraft parts, their functions, and control mechanisms. Both groups were tested with a 30-item questionnaire designed to assess their understanding of these concepts. Data analysis using an Independent t-test revealed a statistically significant difference between the two groups, with the simulation group achieving higher mean scores. These findings indicate that flight simulation games can enhance students’ retention and comprehension of basic aviation concepts more effectively than conventional study methods. The immersive nature of the simulation may contribute to deeper cognitive engagement and practical understanding of the senior high school students
Civil Status, Single: The Emotional Experiences and Transformations of Single Teenage Filipino Mothers Across Generations in Their Transition to Adulthood
No full textSingle teenage mothers in the Philippines face unique emotional and psychological challenges as they transition from adolescence to adulthood. These challenges often stem from societal stigma, guilt, and the loss of personal aspirations, which negatively affect their mental health and self-identity. Guided by Intersectionality theory, this study explores the emotional experiences of single teenage Filipino mothers, aiming to understand how early motherhood influences their emotional well-being, identity formation, and personal growth. Six Filipino women, aged 18 to 55, were purposively selected to provide a diverse generational perspective. Semi-structured interviews were conducted, and the data were analyzed using Braun and Clarke’s six-phase thematic analysis framework. Findings revealed that while younger participants expressed more immediate emotional struggles, older participants tended to reflect on their experiences with greater emotional perspective and a developed sense of resilience. Common coping mechanisms included support from family, faith, and self-care practices. The study emphasizes the need for comprehensive policies offering financial, educational, and emotional support for young mothers, as well as the importance of a more inclusive and practical sex education curriculum. Future research should aim to involve a more diverse and representative sample of participants to further understand the emotional journeys of single teenage mothers. By shedding light on these experiences, the study seeks to inform the development of more effective interventions for young mothers in the Philippines