Philippine Journal of Science Vol. 149 No. 1, March 2020


About the Cover

Positional Fitness
Caesar A. Saloma

Recorded Eruptions of Mayon and Taal Volcanoes from the Philippine Journal of Science
David Matthew C. Gopilan


Influence of Antemortem and Slaughtering Practices on the pH of Pork and Chicken Meats
Monica R. Manalo and Alonzo A. Gabriel

Importin-β Proteins Expression Modulation in Embryonic Stem Cells and Embryonic Fibroblasts of Mouse
Percival P. Sangel

Chitosan Curcumin Film as a Sensor for Detection of O-Nitrophenol and Fluoride Ion Using Fluoresce Quenching Technique
Soma Chakraborty and Andrea Paola D. Ilagan

BAG6 Variant rs805303 is Nominally Associated with ACEi-induced Cough Among Filipinos
Paul Ferdinand M. Reganit, Jose B. Nevado Jr., Eva Maria C. Cutiongco – de la Paz, Jezreel L. Taquiso, Aimee Yvonne Criselle L. Aman, Elmer Jasper B. Llanes, Jose Donato A. Magno, Deborah Ignacia D. Ona, Felix Eduardo R. Punzalan, Lourdes Ella G. Santos, Richard Henry P. Tiongco II, Jaime M. Aherrera, Lauro L. Abrahan IV, Charlene F. Agustin, Adrian John P. Bejarin, and Rody G. Sy

Optimization of Moist-heat and Dry-heat Treatment for the Production of Stabilized Brown Rice Using Box-Behnken Design
Alex M. Palomo, Rosemarie G. Garcia, Dahlia A. Diaz, and Mario V. Capanzana

Comparison of Two Nature-inspired Algorithms for Parameter Estimation of S-system Models
Raquel C. Cajayon, Jayson A. Lucilo, Carlene PC. Pilar-Arceo, and Eduardo R. Mendoza

Marine Microbes and Plastic Debris: Research Status and Opportunities in the Philippines

Deo Florence L. Onda, Norchel Corcia F. Gomez, Daniel John E. Purganan, Mark Paulo S. Tolentino, Justine Marey S. Bitalac, Jahannah Victoria M. Calpito, Jose Nickolo O. Perez, and Alvin Claine A. Viernes

Medicinal Plants Used by Traditional Healers in Pagadian City, Zamboanga del Sur, Philippines

Julienne Stephanie Fabie-Agapin

First Molecular Evidence for Bat Betacoronavirus in Mindanao

Nikki Vanesa T. Tampon, Ysabela Marie C. Rabaya, Kameela Monique A. Malbog, Sammer C. Burgos, Michael G. Bacus, Kemuel Libre Jr., Agape Shelley D. Valila, Marion John Michael M. Achondo, Lowela Siarot Onggo, and Lyre Anni E. Murao

Estimating Residential Water Demand in a Relocation Area with Inadequate Piped Water System
Rosalina Palanca-Tan

Coconut Water with Either Tomato Juice or Garlic Extract as Extender Components for Paraoakan Native Chicken Semen at Different Storage Temperatures
Jane Pauline M. Esguerra, Julienne Maria Undine Paz H. Quimio, Geleo A. Dichoso, Carla Alilie L. Junsay, Veneranda A. Magpantay, and Percival P. Sangel

Antiproliferative and Antiplasmodial Investigation of Alphitonia excelsa and Arcangelesia flava
Rolly G. Fuentes, Ana L. Valenciano, Maria B. Cassera, and David G. I. Kingston

Effects of Water and Weed Management on the Weed Density, Grain Yield, and Water Productivity of Wet-seeded Rice
Kristine Samoy-Pascual, Edwin C. Martin, and Christian Paul Ariola

Exploring Differences and Correlation Between Thermal-optical Transmittance Elemental Carbon (EC) and Reflectometer Black Carbon (BC) from an Urban and a Rural Site in the Philippines
Jeff Darren G. Valdez, Angel T. Bautista VII, Preciosa Corazon B. Pabroa, Joseph Michael D. Racho, Gloria R. Jimenez, and Flora L. Santos

Optimization of Fermentation Factors for Polyhydroxybutyrate (PHB) Production Using Bacillus megaterium PNCM 1890 in Simulated Glucose-Xylose Hydrolysates from Agricultural Residues
John Cristopher A. Dañez, Princess J. Requiso, Catalino G. Alfafara, Fidel Rey P. Nayve Jr., and Jey-R S. Ventura

Sequence Analysis and Cloning of Alkane 1-monooxygenase and Catechol 1,2-dioxygenase Genes from Acinetobacter baumannii Isolated from the Philippine Pasig River
Adrian Paul S. Tan and Cynthia T. Hedreyda

Genetic Characterization of Philippine Saba Germplasm Collection Using Microsatellite Markers
Fides Marie R. dela Cruz, Rita P. Laude, Carlo Miguel C. Sandoval, Lavernee S. Gueco, Visitacion C. Huelgas, Roberta N. Garcia, and Evelyn Mae T. Mendoza

Efficiency of Combined Co-composting, Vermicomposting, and Drying in the Treatment of Cadmium, Mercury, Helminths, and Coliforms in Sludge from Wastewater Facilities for Potential Agricultural Applications
Maria Aileen Leah G. Guzman, May Ann A. Udtojan, Marylle F. Del Castillo, Emilyn Q. Espiritu, Jude Anthony N. Estiva, Jewel Racquel S. Unson, Joan Ruby E. Dumo, and Jay Roy E. Espinas

Isotopic Data for Inferring Groundwater Dynamics in Cagayan de Oro City, Philippines
Charles Darwin T. Racadio, Soledad S. Castañeda, Flerida A. Cariño, and Norman D.S. Mendoza

Approximation and Computational Complexity of Some Hammock Variations of the Poset Cover Problem
Ivy D. Ordanel, Proceso L. Fernandez Jr., Richelle Ann B. Juayong, and Henry N. Adorna

Green Synthesis of Silver Nanoparticles Using Calabash (Crescentia cujete) Fruit Extract and Their Antimicrobial Properties
Dyle S. Legaspi and Noreen Grace V. Fundador