A Proposed Conceptual Framework for the Integration of Agent-Based MIcrosimulation to Activity-Based Demand Models

Authors: Ma. Bernadeth Lim, Hector Lim, Jr., Patrick Marvin Agramon, Gem Vitales, Joy Mae Anabo

Volume: 27 (2023) Issue 2, Page: , Category: Natural Sciences
DOI: 10.52751/GQKL6394

Traffic patterns and related problems are changing due to population growth, calamities, among others. Transportation planning is crucial in finding solutions to these problems. Travel forecasting models such as activity-based demand and agent-based microsimulation ones are effective tools to simulate… More
0   0

Mining the Indigenous Fruit Trees of Mindanao for Essentials Oils with Antibacterial Activity

Authors: Glenda Z. Doblas, Samuel S. Zamora Jr., Hannah P. Lumista, Yuyen V. Tan, Ronaldo C. Balandra, Reggie Y. Dela Cruz

Volume: 27 (2023) Issue 2, Page: , Category: Natural Sciences
DOI: 10.52751/NSBQ2179

Indigenous fruit trees are underutilized local resources but of great interest as potential sources of new chemical entities for drug discovery. In this work, the antimicrobial potential of essential oils (EOs) extracted from indigenous fruit trees of Mindanao was evaluated.… More
0   0

Geo-Hazard Assessment and Mapping in Barangay Kiorao, Kibawe, Bukidnon

Authors: Ma. Catherine Q. Arca, Cheryl F. Daleon, Eric L. Cenabre, Einstine M. Opiso, Paulino R. Reomero, Richie Catherind Supremo-Lood, Rowena Rosales-Cangas, Richard Namuag, Methuselah Gen R. Berame, Jan Mavylle S. Umali

Volume: 27 (2023) Issue 2, Page: , Category: Natural Sciences
DOI: 10.52751/HPTZ9937

Geohazards pose a significant threat to human life and property in the Philippines, and Barangay Kiorao, Bukidnon is no exception. Predominantly expansive soils in the barangay are susceptible to swelling and shrinking with changes in moisture content, and three sampling… More
0   0

Remote Sensing Technology Application for Tree Plantation Characterization and Sustainable Operation

Authors: Alex S. Olpenda, Joseph C. Paquit, Adrian M. Tulod, Kleia D. Polinar, Rodriga G. Aguinsatan

Volume: 27 (2023) Issue 2, Page: , Category: Natural Sciences
DOI: 10.52751/LTKN9234

In order to increase the supply of timber especially from industrial tree plantations (ITPs) and at the same time reducing the pressure on the remaining natural forests, proper planning and management must be strengthened. A plantation manager can efficiently do… More
0   0

Prevalence of Zoonotic Gastrointestinal Parasite in Cattle Slaughtered at Gwadabawa Abattoir of Sokoto State, Nigeria

Authors: Shehu S. Gobir, Mohammed Suleiman, Yusuf Sarkingobir, Aminu Umar Imam, Sabiu Muhammad, Bello Sulaiman

Volume: 27 (2023) Issue 2, Page: , Category: Natural Sciences
DOI: 10.52751/CQYT6475

Infectious diseases and malnutrition are some of the issues in Sokoto, Nigeria. Cattle remain significantly important in providing health and economic benefits to the people. However, cattle productions are affected by zoonoses, and in turn endangering the health of people.… More
0   0

Implications of Travel Behavior Determinants on Transportation Planning in the COVID-19 Pandemic

Authors: Hector Lim Jr., Ma. Bernadeth Lim, Joy Mae Anabo

Volume: 26 (2022) Issue 2, Page: 5, Category: Natural Sciences
DOI: https://doi.org/10.52751/xdzq1976

Transportation planning is vital in the current scenario of rapidly growing populations, travel changes, and demand. With the emergence of the COVID-19 pandemic, socio-economic conditions in society are exerting significant strain on transportation infrastructure. These conditions might affect not only… More
0   0

Bridging the Last Mile through Shared Mobility towards an Integrated Mobility System

Authors: Ma. Bernadeth B. Lim, Hector R. Lim, Jr., Ann Wendy M. Rojas

Volume: 26 (2022) Issue 2, Page: 19, Category: Natural Sciences
DOI: https://doi.org/10.52751/lvpo5704

As the population of urban centers grows, there is a significant challenge of adjusting the transportation needs of urban mobility, as well as pursuing environmental protection strategies and ensuring social inclusion. The major bottleneck of urban mobility includes the constant… More
0   0

Gall Rust Disease Incidence and Severity in a Falcata (Falcataria moluccana (Miq.) Barneby & J.W.Grimes) Plantation Grown from Select Mother Trees in Mindanao, Philippines

Authors: Adrian M. Tulod, Jupiter V. Casas, Mark Jun A. Rojo, Lowell G. Aribal, Uzzi Kobe Yitzhak F. Libayao, Brian Rey L. Monteroso

Volume: 26 (2022) Issue 2, Page: 31, Category: Natural Sciences
DOI: https://doi.org/10.52751/eiex6852

It remains unknown whether there are available gall rust resistant seed sources of Falcata (Falcataria moluccana (Miq.) Barneby & J.W.Grimes) in the country or elsewhere. This study was conducted to obtain baseline data for future progeny selection of gall rust… More
0   0

Response of ‘Carabao’ Mango (mangifera indica l.) to 1-Methylcyclopropene in Sachet

Authors: Angelyn T. Lacap , Emma Ruth V. Bayogan

Volume: 26 (2022) Issue 2, Page: 69, Category: Natural Sciences
DOI: https://doi.org/10.52751/hkmz4233

1-Methylcyclopropene (1-MCP) was tested on ‘Carabao’ mango harvested at 105 days after flower induction. Mature green mangoes of uniform quality were sanitized with 200 µL L-1 NaOCl, air dried, and packed inside newspaper-lined bamboo baskets, then treated with different concentrations… More
0   0

Modeling the Performance of Senior High School Students’ National Achievement Test Performance in Central Mindanao University

Authors: Nathalie Joy G. Casildo , Kent Levi A. Bonifacio, Gladys S. Ayunar , Mindell Rey C. Aguirre

Volume: 26 (2022) Issue 2, Page: 88, Category: Natural Sciences
DOI: https://doi.org/10.52751/vquk7429

The study is entitled Modeling the Performance of Senior High School Students’ National Achievement Test Performance in Central Mindanao University. It aims to develop a predictive model of the National Achievement Test performance of Senior High School students. The study… More
0   0

Geo-Spatial Dynamics of COVID-19 Pandemic Onset in Davao City

Authors: Maynard U. Usares, Mabel I. Barroga, Jacky Jay C. Cadulong, Dinnes Karl N. Garcia, Melanie M. Garcia, Phoebe Nemenzo-Calica

Volume: 26 (2022) Issue 2, Page: 109, Category: Natural Sciences
DOI: https://doi.org/10.52751/GZBG7151

Davao City, a major urban center in the Philippines with its various landforms and population distribution has been affected by COVID-19. This study aimed to identify and locate areas with COVID-19 cases in Davao City, create a location map of… More
0   0

Spatial Information on the Central Mindanao University’s Academic Services in the Northern Mindanao Geographically Isolated and Disadvantaged Areas

Authors: Angela Grace Toledo-Bruno, Eric N. Bruno, Joseph C. Paquit

Volume: 26 (2022) Issue 2, Page: 118, Category: Natural Sciences
DOI: https://doi.org/10.52751/dlqf8496

Central Mindanao University (CMU) is a premier university in Northern Mindanao with a mission to provide quality education. In response to Sustainable Development Goal #4 on Quality Education and the government's program on Geographically Isolated and Disadvantaged Areas (GIDAs), this… More
0   0

Antibiofilm Activity of Erigeron floribundus (Kunth) Against Staphylococcus Aureus and Pseudomonas Aeruginosa

Authors: Merced G. Melencion, Christine Joy O. Lahaylahay

Volume: 26 (2022) Issue 2, Page: 128, Category: Natural Sciences
DOI: https://doi.org/10.52751/umrt7147

Antibiotic-resistant biofilm is a complex microbial community associated in the high risk of morbidity and mortality of hospitalized patients. The current study aims to determine the antibiofilm activity of invasive Erigeron floribundus plant extracts often known as "abas-abas" against Staphylococcus… More
0   0

Effects of Multiple Game-based Strategies in Grade 10 Science Learning

Authors: Radzma A. Morales, Wilfred G. Alava, Jr., Alwielland Q. Bello

Volume: 26 (2022) Issue 2, Page: 134, Category: Natural Sciences
DOI: https://doi.org/10.52751/ZZOY6467

This study investigated the effects of multiple game-based strategies on learners’ academic performance and engagement in Grade 10 Science. It was conducted at Esperanza National High School, Schools Division of Sultan Kudarat, during the school year 2019-2020. The study used… More
0   0

GIS-based Mapping of Flashflood Susceptible Areas in Bukang Liwayway, Kibawe, Bukidnon

Authors: George R. Puno, Alex S. Olpenda, Rena Christina C. Puno, Rodriga G. Aguinsatan, Laarni F. Lacandula, Ida V. Maghuyop, Ricardo G. Villar

Volume: 26 (2022) Issue 1, Page: 5, Category: Natural Sciences
DOI: https://doi.org/10.52751/bwyx7405

This study aimed to generate a GIS-based flashflood hazard susceptibility map using the geographical information system (GIS) and frequency ratio (FR) techniques in one of the geographically isolated and disadvantaged areas (GIDAs) of the country, which is the barangay Bukang… More
0   0

Predicting Organizational Change in Health Institutions through Management Communication: A Multiple Regression Analysis

Authors: Ruffa Mae S. Olbes and Ronel G. Dagohoy

Volume: 26 (2022) Issue 1, Page: 16, Category: Natural Sciences
DOI: https://doi.org/10.52751/vrcl4351

The successful application of change plays a significant role in communication as it is used to announce, explain, or prepare individuals for change. However, researchers, unfortunately, cannot find any research studies studying the impact of organizational change in health institutions… More
0   0

Essential Macro-Minerals, Crude Protein and Total Antioxidant Activity of Powdered Ginger and Turmeric at Varied Drying Methods

Authors: Gina B. Barbosa, Cresilda V. Alinapon and Myrna G. Pabiona

Volume: 26 (2022) Issue 1, Page: 64, Category: Natural Sciences
DOI: https://doi.org/10.52751/hzmg1570

Drying is widely usedd and one of the most effective methods for food preservation. This study reports the macro-mineral, crude protein, and antioxidant activity of locally produced powdered ginger and turmeric using the air-, oven- and sun drying methods. Kjeldahl… More
0   0

Azadirachta indica A. Juss., Tinospora rumphii Boerl. and Vitex negundo against Sarcoptes scabiei in vitro

Authors: Obedencio, Jose Jr M, Daguro, Ted Aries A, Dargantes, Alan P, Abella, Jose Alexander, Montemayor, Maria Lebeña, Batain, Jesalyne Joy Marie B

Volume: 25 (2021) Issue 2, Page: 6, Category: Natural Sciences
DOI: https://doi.org/10.52751/cczy2874

The study aimed to evaluate the acaricidal efficacy of the ethanol leaf extracts of Azadirachta indica A. Juss., Tinospora rumphii Boerl., and Vitex negundo against Sarcoptes scabiei var. canis. It also aimed to determine the concentration level of each leaf… More
0   0


Authors: Kerk Rekkem R. Rafil, Joliesa Mae S. Toledo

Volume: 25 (2021) Issue 2, Page: 11, Category: Natural Sciences
DOI: https://doi.org/10.52751/ilzb3992

The present study was conducted to compile information on species composition of moths found from Mt. Musuan, Maramag, Bukidnon. The moths were collected using a light trapping method from November to December 2014 on three vegetation types namely grassland, pine… More
0   0

Phytochemical and Oral Toxicity Studies of Chromolaena odorata L. (King and Robinson)Leaf Extract

Authors: Anecito G. Juan, Alan P. Dargantes, Kristian Ed M. Serafica, Kurt Melon C. Calonia, Rowland M. Awiten

Volume: 25 (2021) Issue 2, Page: 19, Category: Natural Sciences
DOI: https://doi.org/10.52751/deju9088

In this study, the ethanolic leaf extract of Chromolaena odorata was analyzed for qualitative and quantitative composition and evaluated for oral toxicity in Swiss Webster albino mice. The mice were grouped into two and tested for acute (fixed single dose… More
0   0

Species Richness and Status of Pteridophytes in North-Eastern Part of Mount Timolan Protected Landscape, Zamboanga del Sur, Philippines

Authors: Liberty Grace L. Calimbo, Maricris G. Cudal, Jasper B. Locson, Rogelio M. Hayag, Jr., Jehuel Nathan R. Daculio

Volume: 25 (2021) Issue 2, Page: 26, Category: Natural Sciences
DOI: https://doi.org/10.52751/svgb4056

This study was conducted to assess the species composition and conservation status of pteridophytes in the north-eastern portion of Mount Timolan Protected Landscape. The studyrevealed a total of 98 species comprising 52 genera from 21 families. Tectariaceae, Polypodiaceae and Dryopteridaceae… More
0   0


Authors: Manuel Anthony C. Contridas, Noah Patrick K. Madrazo, Marvin A. Mangogtong, Denheart O. Andrade, Zairev Oliveros, Lynette C. Cimafranca, Julious B. Cerna

Volume: 25 (2021) Issue 2, Page: 33, Category: Natural Sciences
DOI: https://doi.org/10.52751/vacr1044

Flacourtia jangomas, locally known as Seriales is an indigenous fruit tree in the Philippines. It potentially contains important nutrients and bioactive compounds, but it is a less known commodity, with no economic value. Moreover, the fruit is highly prone to… More
0   0

Factors affecting the nodulation of Pongamia pinnata (L.) Pierre inoculated with Rhizobium mesoamericanum (Lopez-Lopez et al., 2012)

Authors: Phoebe S. Nemenzo, Marianita B. Santos, Melanie M. Garcia, Jhonnel P. Villegas

Volume: 25 (2021) Issue 2, Page: 39, Category: Natural Sciences
DOI: https://doi.org/10.52751/eqse9859

Pongamia pinnata or “bani” in the Philippines is a non-food crop that can grow on marginal land where food crops do not grow. Its seeds are used for biofuel production such as biodiesel and aviation fuel. It is resilient against… More
0   0

Anti-microbial Properties of Selected Plant Leaf Extracts Against Aspergillus niger (van Tieghem), Pseudomonas aeruginosa (Schroeter) and Staphylococcus aureus (Rosenbach)

Authors: Melanie M. Garcia, Maria Luisa M. Antao, Chloe Lynn M. Gotera, Paulyn Jane P. Hermoso, Rizzarttein V. Samblaceño, Russel D. Valencia, Mary Grace C. Budias, Farrah V. Teodoro, Nicole F. Olayvar, Jhonnel P. Villegas, Phoebe S. Nemenzo

Volume: 25 (2021) Issue 2, Page: 48, Category: Natural Sciences
DOI: https://doi.org/10.52751/cnfq9322

With growing reports of multidrug-resistant pathogens causing untreatable human infections, the need for new antimicrobial therapies is becoming increasingly important. This study was conducted to investigate the antimicrobial properties of the leaf extracts of Premna odorata Blanco, Petersianthus quadrialatus Merr.,… More
0   0

Energy Audit of an Educational Building: College of Engineering

Authors: Earl M. Opiso, Ariel E. Abay, Cleifford S. Alfarero

Volume: 25 (2021) Issue 1, Page: 14, Category: Natural Sciences
DOI: https://doi.org/10.52751/rluq7804

Educational buildings are the most suitable type of building for the application of energy audit. Such measures can promote sustainability and ensure a comfortable and healthy environment for educational purposes. This study aimed to assess energy efficiency and conservation of… More
0   0

Non-destructive On-field Determination of Pineapple (Ananas Comosus L.) Maturity using Acoustic Impulse Impedance Technique

Authors: Audry B. Llaban

Volume: 25 (2021) Issue 1, Page: 19, Category: Natural Sciences
DOI: https://doi.org/10.52751/fjvy1283

This study analyzed the Hiligaynon speakers’ emotive language and communication devices in online conversation. Issues that went viral on the opening of online classes served as the interaction objects. The researcher used the qualitative research method, specifically, linguistic discourse analysis,… More
0   0

Rapid Riparian Assessment of Selected Critical Rivers in Misamis Oriental, Philippines

Authors: Rose Angelica L. Amper, George R. Puno, Einstine M. Opiso, Rena Christina C. Puno

Volume: 25 (2021) Issue 1, Page: 26, Category: Natural Sciences
DOI: https://doi.org/10.52751/bcvr2374

Due to threats of agricultural expansion and urbanization, riparian areas of rivers are on the brink of deterioration impacting their ecological functions such as the attenuation of flood disasters. In the urbanizing cities and municipalities of El Salvador, Gingoog and… More
0   0

Setup Reproducibility of Supine Position in Radiotherapy of Rectal Cancer Patients

Authors: Mark M. Alipio

Volume: 25 (2021) Issue 1, Page: 47, Category: Natural Sciences
DOI: https://doi.org/10.52751/scce1165

Setup reproducibility is crucial in the delivery of dose in radiotherapy as it determines the accuracy and treatment success of the procedure. Previous studies reported supine as an alternative to prone; however, the comparison was not straightforward as several factors… More
0   0

Assessment of the Potential of Off-Grid microHydro in an Irrigation Canal in Lower Magsaysay, Kuya, Maramag, Bukidnon to Power Streetlights

Authors: Dana Marie Y. Eduave , Arman T. Gascon

Volume: 25 (2021) Issue 1, Page: 51, Category: Natural Sciences
DOI: https://doi.org/10.52751/ktor1082

This study is about the assessment of a potential microhydro system in an irrigation canal in Lower Magsaysay, Kuya, Maramag, Bukidnon to power streetlights. The assessment showed that the microhydro have enough potential just to power streetlights. The microhydro system… More
0   0

Prevalence of Dog Bites and Risk Factors Among Residents of Maramag, Bukidnon

Authors: Jose Jr M. Obedencio, Ted Aries A. Daguro, Alan P. Dargantes, Hannah Charmaign S. Leonoa

Volume: 24 (2020) Issue 2, Page: 25, Category: Natural Sciences
DOI: https://doi.org/10.52751/wvsr8464

Around 2,000 cases of animal bites are reported every year in animal bite centers in Maramag, Bukidnon. The study aimed to determine the prevalence and risk factors associated with dog bite victims in selected barangays of Maramag, Bukidnon, Philippines. A… More
0   74

Antibacterial activity of the crude ethanolic extracts of Etlingera elatior and Etlingera philippinensis

Authors: Gina B. Barbosa, Cresilda V. Alinapon, Analyn G. Gultiano

Volume: 24 (2020) Issue 2, Page: 40, Category: Natural Sciences
DOI: https://doi.org/10.52751/witj7422

Due to the emergence of multidrug resistant bacteria, researchers are on search for a new source of antimicrobial agents such as plants. This study reports the antibacterial activities of the leaves and rhizomes of E. philippinensis and E. elatior against… More
0   62

Quantum Description of a Damped Coupled Harmonic Oscillator via White-Noise Analysis

Authors: Jhon Delo L. Procurato, Roel N. Baybayon

Volume: 24 (2020) Issue 2, Page: 46, Category: Natural Sciences
DOI: https://doi.org/10.52751/byuv1259

In this paper, the quantum mechanical dynamics of a particle subjected to a damped coupled harmonic oscillator potential was investigated by solving its quantum propagator using the Hida-Streit formulation—also known as the White-Noise analysis. A coordinate transformation to decouple the… More
0   0

Utilization of Unwanted Weed, Paragis Leaves (Eleusine indica Linn.) in Cookie Production

Authors: Dolie T. Makinano, Lynette C. Cimafranca

Volume: 24 (2020) Issue 1, Page: , Category: Natural Sciences

Paragis is a common grass which is abundant and can be seen everywhere but is regarded as having no economic value. To add value to this grass, the study generally aimed to formulate cookies with powdered paragis leaves and mashed… More
0   0

Antibacterial Activity of Zinc Oxide Nanoparticles Using Banana Peel Extract against Antibiotic-Resistant Bacteria

Authors: Andrew B. Melencion, Winson M. Gutierrez2, Merced G. Melencion

Volume: 24 (2020) Issue 1, Page: 7, Category: Natural Sciences
DOI: https://doi.org/10.52751/xnxi3173

Synthesis of zinc oxide nanoparticles on their antimicrobial activity utilizing banana peelings could be a potential candidate to develop nano-formulated natural products as an alternative, efficient, inexpensive, and environmentally safe method with specified properties. The study aimed to investigate the… More
0   163

Utilization of Cogon (Imperata cylindrica L.) Silage and Urea-Treated Corn (Zea mays L.) Stover as Affected by Supplementation

Authors: Elmar M. Patiga, Lolito C. Bestil, Hershey P. Mondejar

Volume: 24 (2020) Issue 1, Page: 11, Category: Natural Sciences
DOI: https://doi.org/10.52751/dzsg8945

Cogon grass, a weed occasionally used as livestock feed has a limited nutritive value. Improving the utilization of low quality roughages could be by treatment with nitrogen sources, chemical and physical treatment .Thus an experiment was conducted to assess the… More
0   189

Food security amid the COVID-19 pandemic: research and development priorities for Higher Education Institutions in the Philippines and Southeast Asia

Authors: Glenn B. Gregorio, Rico C. Ancog

Volume: 23 (2019) Issue 2, Page: 5, Category: Natural Sciences
DOI: https://doi.org/10.52751/lopo8266

Food security has long been a major development priority of all countries and will remain to be in the future. This has become all the more important in this time of COVID19 pandemic. It is achieved when there is the… More
0   489

Physico-Chemical Properties of the Fish Pond Water in CMU, Bukidnon, Philippines

Authors: Gloria Jesusa D. Baltazar

Volume: 23 (2019) Issue 2, Page: 8, Category: Natural Sciences
DOI: https://doi.org/10.52751/mnaf2550

Good water quality is a key component of sustainable aquaculture production. The present study reports the water physico-chemical properties of selected fish ponds in Central Mindanao University, Bukidnon, Philippines. The values of the parameters ranged from pH 8.36-8.64, 26.73-27.61 °C… More
0   293

Fish Abundance and Physico-chemical Properties of Matingao River and Marbel River, Mount Apo Natural Park, Mindanao, Philippines

Authors: Victoria T.Quimpang, Maricris G. Cudal, Einstine M. Opiso, Romeo M. Tubongbanua, Jr., Mary Cor S. Salolog, Emmanuel P. Leaño, Victor B. Amoroso

Volume: 23 (2019) Issue 2, Page: 14, Category: Natural Sciences
DOI: https://doi.org/10.52751/drfa8273

Mount Apo Natural Park (MANP) is an important forest reserve in most part of Region XI and XII because of its watershed importance. However, the MANP may also threatened by habitat modification that may alter most of its water resource.… More
0   365

Growth and Profitability of Broilers with Vermimeal on Ration Under Two Management

Authors: Marcos Bollido

Volume: 23 (2019) Issue 2, Page: 21, Category: Natural Sciences
DOI: https://doi.org/10.52751/vaec6565

The study was conducted to evaluate the growth and profitability of broilers in the different levels of vermi (Eisenia fetida) meal ration under two management systems. 120 day old chicks were tested in Randomized Complete Block Design with 4 treatments:… More
1   330

Saluyot (Corchorus olitorius L.) Leaves as Acoustic Gel for Ultrasound Imaging

Authors: Mark M. Alipio, Danielle Loise R. Questo, Danielle Marie I. Subang, Lovelyn A. Tan

Volume: 23 (2019) Issue 2, Page: 30, Category: Natural Sciences
DOI: https://doi.org/10.52751/vblo5146

Ultrasound is aided with acoustic gel to provide an accurate medical diagnosis; however, this product is costly and, thus, may hinder the diagnostic value of the procedure. This research is focused on the evaluation of radiographic image quality parameters of… More
0   364

Computational Modeling and Simulation of Linear Accelerator Performance for General Radiotherapy

Authors: Andelson L. Berondo, Lilian V. Rodriguez, Alwielland Q. Bello

Volume: 23 (2019) Issue 2, Page: 35, Category: Natural Sciences
DOI: https://doi.org/10.52751/xeor9349

In radiation therapy, Monte Carlo method was a standard procedure for absorbed dose calculations; yet it was often frustrating due to long computation requirements and complex programming. Monte Carlo method was soon revitalized since the introduction of Geant4 framework purely… More
0   290

Eggshells as Alternative Shielding Material Against Diagnostic X-rays

Authors: Mark M. Alipio

Volume: 23 (2019) Issue 2, Page: 40, Category: Natural Sciences
DOI: https://doi.org/10.52751/vxnf1485

With the advancement in diagnostic imaging, providing shielding against X-rays has become a significant concern. While Lead has been extensively used as the shielding material, it is costly and toxic to humans and the surrounding environment. This study aims to… More
0   323

Technospheric Mining Towards a Circular Economy

Authors: Richard Diaz Alorro, PhD

Volume: 22 (2018) Issue 2, Page: 5, Category: Natural Sciences

Human activities, such as product manufacturing, mining, and ore extraction, chemical and metallurgical processing, road and building construction, municipal and household activities, and agriculture among others, have relocated and accumulated metal and material resources from geological origins to the technosphere.… More
0   338

Non-CO2 Greenhouse Gas Emissions from Field Burning of Crop Residues in the Philippines: 1990-2015

Authors: Jose Hermis P. Patricio

Volume: 22 (2018) Issue 2, Page: 8, Category: Natural Sciences

About 32% of the Philippine land area is devoted for agriculture. Given this, the agriculture sector is expected to increasingly generate significant emissions of non-carbon dioxide (CO2) greenhouse gases (GHG) and their precursors such as methane (CH4), carbon monoxide (CO),… More
0   565

Litterfall Production and Turnover in the Long-Term Ecological Research Sites in Southern Philippines

Authors: Florfe M. Acma, Victoria T. Quimpang, Victor B. Amoroso, Noel P. Mendez

Volume: 22 (2018) Issue 2, Page: 23, Category: Natural Sciences

Forest litter is an important aspect for healthy forest ecosystems. Hence, this study monitored the litterfall production and turnover in the established two-hectare permanent plots in the three Long Term Ecological Research (LTER) Sites in Mindanao, viz., Mt. Apo, Mt.… More
0   259

Underutilized Senna tora (L.) Roxb. - a highly potential multipurpose species for food, feed, medicine and climate resilience for the Philippines

Authors: Joy M. Jamago, Jean L. Valleser, Gerald N. Galleron, April Grace M. Racines, Bryan U. Bactong, Nora M. Ata

Volume: 22 (2018) Issue 2, Page: 36, Category: Natural Sciences

There are thousands of species in the plant kingdom but less than 200 are recognized as major crops. There is even less when it comes to food crops hence food and nutritional insecurity are major concerns in either developed or… More
1   678

Phytochemical screening and in vitro antibacterial activity of Syzygium sp.("O-on") crude extracts against Pseudomonas aeruginosa and Staphylococcus aureus

Authors: Merced G. Melencion, Chris Rey M. Lituañas, Andrew B. Melencion

Volume: 22 (2018) Issue 2, Page: 48, Category: Natural Sciences

Identification and subsequent isolation of anti-dengue active compounds in medicinal plants are potentially useful for developing antiviral chemical analogues. This study investigated the potential use of aqueous, methanolic, and ethanolic extracts of Syzygium sp. “O-on” against bacterial co-infection of Staphylococcus… More
0   286

Phytochemical and Antioxidant Activity Variation of Processed Edible Ferns

Authors: Domingo P. Lodevico , Melania M. Enot , Rainear A. Mendez , Vince R. Abarquez , Gemma Faith B. Monisit , Fulgent P. Coritico , Victor B. Amoroso

Volume: 22 (2018) Issue 2, Page: 57, Category: Natural Sciences

The main and interaction effects on the total phenolic content (TPC), total flavonoid content (TFC) and 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical seavenging activity of two edible ferns in various food processing methods were investigated. Factors include fern species (Diplazium eculentum and Stenochlaena… More
0   327

Assessment of Termite Infestation in Academic Infrastructure at Central Mindanao University (CMU)

Authors: Mark Jun A. Rojo

Volume: 22 (2018) Issue 2, Page: 68, Category: Natural Sciences

Knowing the pest species first is necessary for the formulation of pest control method. In this study an assessment of termite infestation in the academic buildings was conducted. All wooden materials both furniture and structural member were inspected for signs… More
0   365

Proximate Composition of Raw and Heat-treated Seriales [Flacourtia jangomas (Lour) Raeusch] Fruit

Authors: Lynette C. Cimafranca

Volume: 22 (2018) Issue 2, Page: 74, Category: Natural Sciences

Seriales fruit is an underutilized wild fruit in the Philippines with promising food production potential, however the usual drawback of processing is the change in the composition or properties of the crop or product. Hence, the study aimed to determine… More
0   525

Crystallinity of Hydroxyapatite Powders from Acid Washed and Thermally-Treated Tilapia Bones

Authors: Bienvenido M. Butanas

Volume: 21 (2017) Issue 1, Page: , Category: Natural Sciences

This paper presents the production of quality hydroxyapatite (HAp) powders from tilapia bones using thermal treatment. Hydroxyapatite was successfully synthesized by calcination of 0.5M HCl pre-treated tilapia bones. Powder X-ray diffraction (XRD) revealed the nano-crystalline hexagonal structure of HAp powders.… More
1   309

Suppression of Bacterial Leaf Blight (Xanthomonas oryzae pv. oryzae) using Local Isolates of Rhizobacterial Antagonists

Authors: Fedencio V. Paslon, Revelieta B. Alovera, Carolina D. Amper, Myrna G. Ballentes

Volume: 21 (2017) Issue 1, Page: , Category: Natural Sciences

Local isolates of rhizobacteria associated with rice rhizosphere were evaluated against Xanthomonas oryzae pv. oryzae (Xoo) both in vitro and in vivo conditions. Twenty-three rhizobacteria were isolated from the rice-growing provinces of Caraga Region, Philippines, and their antagonistic activity were… More
3   424

Effects of Sugar Mill Lime Sludge Treatment on the CBR and UCS of Expansive Soil in Bukidnon

Authors: Cheryl F. Daleon, Glen A. Lorenzo

Volume: 21 (2017) Issue 1, Page: , Category: Natural Sciences

The purpose of this study is twofold: to address the proper utilization and disposal of a locally avail- able industrial waste known as sugar mill lime sludge, and to determine whether it could improve the subgrade performance of an expansive… More
1   262

Managing Local Disasters Capacity Needs for Disaster Risk Reduction Management

Authors: Angela Grace Toledo-Bruno, Eva N. Mendoza, Jedilyn M. Tandog

Volume: 21 (2017) Issue 1, Page: , Category: Natural Sciences

Disaster risk reduction and management (DRRM) has become a national and global concern due to the impacts of climate change that increase exposure to disaster risks. The Philippines anchored its DRRM actions on RA 10121 enacted in 2010. This study… More
5   287

Flexural Response of Ferrocement I-Beam to Third-Point Loading

Authors: Leoncio Mariano C. Acma

Volume: 21 (2017) Issue 1, Page: , Category: Natural Sciences

This study aimed to determine the flexural response of ferrocement I-Beam to third-point loading. Three replicates for each test specimen were made. They were cast using the fabricated C- shaped formwork reinforced with 16, 18, 20, and 22 layers of… More
1   215

Determination of Water Requirement for Alternate Wetting and Drying Irrigation Method of Lowland Rice in Bukidnon

Authors: Nelsa J. Olila, Ph.D., Engr. Carlo A. Ang, Rubenito Lampayan, Ph.D.

Volume: 21 (2017) Issue 1, Page: , Category: Natural Sciences

Irrigation water delivered to the rice fields decreases during dry season causing crop damage due to water shortage. The study aimed to estimate the irrigation water requirement of a one hundred hectare rice fields in Maramag, Bukidnon during the dry… More
3   264

Clear and Real Sky Global Horizontal Irradiance (GHI) Determination in the Province of Bukidnon, Philippines

Authors: Ricardo G. Villar, Jojemar Bantugan, Jerald L. Ruta, Nycel S. Barbadillo, Einstine M. Opiso, Jigg L. Pelayo, Jorge Andrew B. Cipriano, Jean Aquino, Joseph M. Labrador, Abigail Labadan

Volume: 20 (2016) Special Issue, Page: , Category: Natural Sciences

The radiation reaching the earth’s surface can be represented in a number of different ways and one of the ways is through GHI determination. This study determined the Global Horizontal Irradiance (GHI) in the Province of Bukidnon. GHI is the… More
0   154

Alubijid River Basin Hydrologic Modeling in Misamis Oriental for Flood Risk Management

Authors: George R. Puno, Rose Ann I. Barro

Volume: 20 (2016) Special Issue, Page: , Category: Natural Sciences

Flood modeling studies for the purpose of forecasting, early warning, and disaster management of the local government and other disaster agencies have been done in many countries nowadays. With a similar rationale, this study aims to assess the precipitation-runoff capacity… More
0   156

Flood Modeling of Musimusi River in Balingasag, Misamis Oriental

Authors: George R. Puno, Rose Angelica L. Amper

Volume: 20 (2016) Special Issue, Page: , Category: Natural Sciences

Flood modeling is one of the recognized effective means of assessing the flood risk to people and property. In this study, the concept of flood modeling is applied in Musimusi river at Balingasag, Misamis Oriental. Using the Hydrologic Modeling System… More
0   200

GIS-Based Estimation of Biomass Available and Energy Potential from Corn Residue in Bukidnon

Authors: Ricardo G. Villar , Joseph M. Labrador , Einstine M. Opiso , Abigail J. Labadan , Jojemar Bantugan , Jorge Cipriano , Jigg Pelayo

Volume: 20 (2016) Special Issue, Page: , Category: Natural Sciences

Biomass resources from forests and agriculture residues are underutilized and lost mostly in the provinces in Mindanao and other less developed areas in the country. This article focuses on the estimation of biomass available and energy potential of corn residue… More
0   178

GIS-Based Flood Hazard Mapping in Gingoog River, Mindanao

Authors: George R. Puno , Bryan Allan M. Talisay , Joseph C. Paquit

Volume: 20 (2016) Special Issue, Page: , Category: Natural Sciences

Flooding is one of the most devastating natural disasters in the Philippines, especially in Mindanao. This study aimed to generate datasets of flooding along the Gingoog River based on Geographic Information System (GIS). The method employed simulation and mapping of… More
0   158

Hydrologic Dataset Extraction Around the Downstream Portion of Cabulig Watershed using Lidar Derived Digital Elevation Model (DEM)

Authors: Ricardo G. Villar , Jerald L. Ruta , Jojemar Bantugan , Nycel S. Barbadillo , Einstine M. Opiso , Jean Aquino , Jigg L. Pelayo

Volume: 20 (2016) Special Issue, Page: , Category: Natural Sciences

Digital Elevation Models (DEMs) processed through the combined application of Remote Sensing (RS) and Geographic Information Systems (GIS) technologies were the most critical datasets to the success of surface hydrologic modelling applications. This study aims to extract the hydrologic features… More
0   136

LiDAR-Based Estimation of Canopy Fuel Parameters of Tree Plantation in Bukidnon, Philippines

Authors: Ricardo G. Villar , Rico R. Marin , Jorge Andrew B. Cipriano , Nycel S. Barbadillo

Volume: 20 (2016) Special Issue, Page: , Category: Natural Sciences

Forest wildfires in the Philippines are all human-caused. Resource managers are dependent on accurate estimates and spatially accurate forest structure information to govern this kind of phenomena.This study presents methods of using airborne laser scanning data to acquire forest and… More
0   183

Microbial Flora in Ukay-ukay Clothing from Flea Markets in Valencia City, Bukidnon

Authors: Lorelie G. Samaniego , Zeus Elumba

Volume: 20 (2016) Special Issue, Page: , Category: Natural Sciences

Microflora from selected ukay-ukay clothing in Valencia City, Bukidnon were isolated and identified, and the effectiveness of commonly used antimicrobial agents against the microbial isolates was assessed through a standard antimicrobial disc diffusion assay. The effectiveness of conventional hand washing… More
0   227

Performance of Reishi Mushroom (Ganoderma Lucidum [Fr.] Karst) using Different Spawn Substrates

Authors: Guia G. Saludares

Volume: 20 (2016) Special Issue, Page: , Category: Natural Sciences

Spawn production is an essential aspect in mushroom cultivation. This involves the induction of mushroom mycelial development in growing medium under controlled conditions. This study aimed to investigate the performance and economic profitability of Reishi Mushroom (Ganoderma lucidum [Fr.] Karst)… More
0   115

Performance of Goat Farms in Region 10

Authors: Reynaldo G. Intong , Julnar E. Pepito , Jhonny M. Callejo , Emilio M. Cruz

Volume: 20 (2016) Special Issue, Page: , Category: Natural Sciences

Goat always has a place in most of the farming systems in the country. It may play a minor role, but their importance in the rural life had long been recognized so that the condition in which they are raised… More
0   314

Planting Densities and Nutrient Rates on te Growth and Fruit Set of ‘Solo‘ Papaya (Carica papaya L.)

Authors: Vences C. Valleser

Volume: 20 (2016) Special Issue, Page: , Category: Natural Sciences

Optimizing plant density per area and fertilization application are basic ways to practice scientific agriculture. These are essential for cost-effective and profitable crop production. This study was conducted at Central Mindanao University to determine the effects of varying planting densities… More
0   280

Sensory Acceptance of Loaf Bread as Affected by Yam flour, Margarine, and Oil

Authors: Domingo P. Lodevico , Ruby A. Arroyo , Allene Mae V. Nasol

Volume: 20 (2016) Special Issue, Page: , Category: Natural Sciences

Loaf bread is widely consumed, and its sensory acceptability is essential for consumers’ quality assurance. Current trends in sensory techniques for costeffective methods in food product development are the use of screening designs. This study investigated to identify the variables… More
0   126

Maximizing Crop Yield and Adaptation under Less Favorable Growing Environments: The Roots of it!

Authors: Roel R. Suralta

Volume: 20 (2016) Special Issue, Page: , Category: Natural Sciences

Sustaining the increase in crop production is the basic cornerstone of meeting the rising demands from population growth, changing dietary preferences and expanding biofuels use. The earlier strategy was simply to expand the area devoted to crop production. However, expanding… More
0   152

Physical Characterization of Kibalagon Creek Catchment Basin

Authors: Nelsa J. Olila, Perfecto B. Bojo, Rodrigo C. Bayawa, Rex O. Yadao

Volume: 20 (2016) Issue 1, Page: , Category: Natural Sciences

Activities and rainfall events at Kibalagon Creek catchment basin contribute to flooding problems at CMU. The study characterized the physical characteristics of the basin to serve as input in policy formulation of campus flooding problems. One year data collection included… More
0   219

Investigating the Digital Divide in a Rural Community in the Philippines

Authors: May Marie P. Talandron, Yolanda C. Tautho, Celso C. Tautho

Volume: 20 (2016) Issue 1, Page: , Category: Natural Sciences

Digital divide is a global social issue that deals with the inequality of availability, access, and utilization of Information and Communications Technology (ICT). This study investigated the incidence of the digital divide and its factors among the residents in a… More
0   923

Ecological Footprint of Residents in a University Town in Mindanao, Philippines

Authors: Angela Grace Toledo-Bruno, Michael Arieh P. Medina, Jose Hermis P. Patricio

Volume: 20 (2016) Issue 1, Page: , Category: Natural Sciences

One of the tools to measure the environmental impacts of the utilization of natural resources is determining ecological footprint (EF). The study assessed how one’s lifestyle could have impacts on the condition of our natural resources. EF study was conducted… More
0   208

Production of Compressed Stabilized Earth Block (CSEB) from Pulangui Reservoir Alluvial Sediments Using Coal Fly Ash as Partial Replacement to Cement as Binder

Authors: Einstine M. Opiso, Reinerio P. Supremo, Neil P. Daquiado, Eva Joy N. Mendoza, King Jehu II Q. Radaza

Volume: 20 (2016) Issue 1, Page: , Category: Natural Sciences

Siltation at Pulangui Reservoir in Maramag, Bukidnon is a big problem for the hydroelectric power plant. This study explores the potential of Pulangui alluvial sediments from five different locations for compressed stabilized earth block (CSEB) production based on the soil… More
0   256

Occurrence of Threatened, Endemic, and Economic Seed Plants in Selected Mountains in Mindanao, Philippines

Authors: Hannah P. Lumista, Reggie Y. Dela Cruz, Florfe M. Acma, Victor B. Amoroso

Volume: 20 (2016) Issue 1, Page: , Category: Natural Sciences

Philippines is one of the biodiversity hotspots of the world, being home to most of the endangered species. It is important to give utmost attention to these plant taxa considered threatened, endemic, and economically important. The primary concern of this… More
0   461

Third-Point Load Effect on Bending Moment of Slotted Ferrocement Beam

Authors: Leoncio Mariano C. Acma

Volume: 20 (2016) Issue 1, Page: , Category: Natural Sciences

Ferrocement is usually made from a mortar of Portland cement, sand and fine gravel applied to steel reinforcement which is provided in small aperture wire mesh and/ or closely spaced small diameter bars or wires. This study aimed to determine… More
0   165
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