The Philippine Journal of Science (PJS) publishes regularly on a bimonthly (every two months) frequency, releasing issues in February, April, June, August, October, and December each year.

Boar Sperm Viability, Head Morphometry, and Kinematics during Seven-day Storage in Improvised Portable Semen Shipper / Santiago T. Peña Jr.

Bioaccumulation and Potential Human Health Risks of Heavy Metals in the Muscles Tank Goby Glossogobius giuris in Lake Mainit, Philippines / Rhenzlyn Joy M. Agtong, Francis Alizha R. Laudiño, Marlon V. Elvira, Mayuko Fukuyama, and Joycelyn C. Jumawan

Effect of Processing on the Antinutrient and Protein Contents of Cassava Leaves from Selected Varieties / Fides Marciana Z. Tambalo, Rosa Buena A. Capuno, Cyrene D. Estrellana, Jayson F. Garcia, and Lizette Sahar N. Arcillas

Production of High-maltose syrup from Selected Rice (Oryza sativa L.) Bran by Enzymatic Method / Garry A. Diopol, Francisco B. Elegado, Katherine Ann T. Castillo-Israel, Mary Ann O. Torio, and Lawrence Yves C. Uy

Helicia danlagunzadii (Proteaceae), a New Species from the Mt. Mantalingahan Protected Landscape, Palawan, Philippines / Pastor L. Malabrigo Jr., Arthur Glenn A. Umali, Gerald T. Eduarte, John Ryan L. Navidad, and Adriane B. Tobias

Nickel Electrodeposition Using Deep Eutectic Solvent-based ElectrolytE / Eden May B. dela Peña

Fat Content, Fatty Acid Composition, and Fatty Acid-based Nutritional Indices/Ratios of Egg Yolks from Different Poultry Species and Breeds / Orville L. Bondoc, Ana Rose Ramos, and Aldrin O. Ebron

Fern Species Diversity along Selected Roadside Vegetation of Macalelon and Infanta, Quezon Province, Philippines / John Benedick O. Perida, Hazel Ann A. Peñaverde, Kristiane R. de Villa, and Wilfredo B. Barrera Jr.

Plant and Other Forest Bioresource Utilization by Local Communities of Northern Negros Natural Park, Negros Island, Philippines / Aragon A. Dechimo Jr. and Inocencio E. Buot Jr.

Morphology, Phenolic Content, and Antioxidant Activity of Etlingera fimbriobracteata (K.Schum.) R.M.Sm. and E. philippinensis (Ridl.) R.M.Sm. (Zingiberaceae) / Noe P. Mendez, Rainear A. Mendez, Angie Rose Villafranca-Tuba, Romeo M. Tubongbanua Jr., and Florfe M. Acma

Influence of Seeding Rate and Flooding Period on Growth of Lowland Ecotype Cyperus rotundus L. and Yield of Wet Direct-seeded Rice under Dual Culture / Dindo King M. Donayre, Jessica Joyce L. Jimenez, Henesie G. Pascua, and Edwin C. Martin

First Record of Ophiophagy in Philippine Ground Snake Stegonotus muelleri on the Non-banded Philippine Burrowing Snake Oxyrhabdium modestum / Alven B. Magdua and Marites Bonachita Sanguila

Wild Kappaphycus cf. striatus Growing in a Mangrove Stand in Siasi, Sulu, Philippines / Jesse Jan M. Galera, Jimal A. Turong, Aldimar S. Bara, Karen Joy B. Serag-Endonila, and Sitti Zayda B. Halun

Suitability of Sugarcane Extract as a Local Extender and the Use of Either DMSO or Glycerol as Cryoprotectants for the Cryopreservation of the Banaba Native Breed Chicken (Gallus gallus domesticus) Semen / Abdul-Rahaman S. Salifu, Jose A.N. Bautista, Antonio A. Rayos, Josefina T. Dizon, and Percival P. Sangel

New Distribution and Rare Records of Microalgae from Aquatic Microcosms of Guzmania lingulata (L.) Mez (Bromeliaceae) / Eldrin DLR. Arguelles

Modeling Mineral Scaling in Matalibong Sector of Tiwi Geothermal Field, Albay, Bicol, Philippines / Hedrick D.A. Reyes, Maria Ines Rosana Balangue-Tarriela, Arnel Mejorada, and Vincejet Niño Ejera

Tadek Di E-Sabangan: an Expression of the People of Sabangan’s Cultural Identity and Heritage through Takik and Tallibeng Indigenous Dances / Jessica C. Talangchey

Notes on the Nest Architecture and Nest Site Characteristics of Mindanao Treeshrew (Tupaia everetti Thomas, 1892) from Dinagat Islands, Philippines / Tristan Luap P. Senarillos and Jayson C. Ibañez

Effects of Arbuscular Mycorrhizal Fungi on Rice (Oryza sativa L.) Grain Yield: a Meta-analysis Using Different Sources of Variation / Ched Justin C. Java, Diana P. Paguntalan, and Elfred John C. Abacan

Effects of Dynamic Jumping Exercise on Vascular Function, Physical Performance, and Quality of Life in Middle-aged with Prehypertension / W Boonsong, S Nakmareong, W Donpunha, K Sawanyawisuth, and T Janyacharoen