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.

Optimization and Determination of Natural Bio-catharantin Mutagen in Polyploidization of Triploid Lembah Palu Shallot (Allium wakegi Araki) / Khusnul Khatima, Rinaldi Sjahril, Feranita Haring, Muhammad Riadi, Astina Tambung, Novitasari, Rosana Agus, Maemunah, Edi Santosa, Ireneus Seno Prasojo, Trisnawaty AR, Nurhaya J. Panga, Aisyah Febriani, Asia Arifin, and Budi Setiadi Daryono

Physico-mechanical Properties and Potential Utilization of Melia azedarach L. Grown in Quezon Province, the Philippines / Oliver S. Marasigan and Mario Angelo M. Mundin

Understanding Socio-ecological Complexity of Mangrove-Crocodile-Fishery Resources Interaction in Bugsuk Island, Balabac, / Palawan, the Philippines – Glenda I. Manalo-Cadigal, Russell Richards, Lota Alcantara-Creencia, and Rainier I. Manalo

Synthesis, Characterization, and Antibacterial Activity of Chitosan Derived from Charru Mussel (Mytella charruana) Shells in Baroy, Lanao del Norte, the Philippines / John Ryan A. Mejares, Ronald P. Bual, Marionilo B. Labares Jr., and Hernando P. Bacosa

Antioxidant Profile and Antidiabetic Effect of Oryza sativa var. Pulu Mandoti “Local Golden Rice” from Enrekang (Indonesia): In Silico Approach / Andi Masniawati, Apon Zaenal Mustopa, Muhammad Ruslan Umar, Baso Manguntungi, Herman Irawan, Annisa Suryasetya Salsabila, Sahri Yanti, Leggina Rezzy Vanggy, Handoko, Nur Hilal A. Syahrir, and Kharmila Rahmadani

Comparative Analysis of Different Forest Fire Susceptibility Models in Benguet, the Philippines / Cindy E. Poclis, Cristino L. Tiburan Jr., Diomedes A. Racelis, Roberto G. Visco­­, Marco A. Galang, and Jayric F. Villareal

Fabrication of a Concrete Roof Tile by Geopolymerization of Red Clay with Container Glass Wastes / Keith T. Bulaybulay, Jessel Grace L. Orpeza, and Ruben L. Menchavez

Potential of Dioscorea spp. for Bioethanol Production Using Separate Hydrolysis and Fermentation Method / Ninlawan Chaitanoo, Autchara Junphong, Atchara Chaiya, Kanyaphorn Chaiwong, and Janyawat T. Vuthijumnonk

Research Landscape of Filipino Mathematicians: a Co-authorship Network Analysis / Paul K. Yu, Gerard C. Aurellano, Edriel B. Guanzon, Ethan Matthew T. Templonuevo, Unisse C. Chua, Briane Paul V. Samson, John Rhayel S. delos Santos, and Angelyn R. Lao

Integration of Google Trends Data in Predicting New HIV Cases in Western Visayas, the Philippines / Daniel David M. Pamplona, Jaser John G. Dago-oc, Kingsley John de los Santos, and Bea Rafaella S. Nufuar

Anti-angiogenic Activities of Methanol Extracts of Imbao (Anodontia edentula) Using Chorioallantoic Membrane Assay [Research Note] / Nour Adel P. Domaub, Kimverly Hazel I. Coronel, Christine Cherry E. Solon, and Carlo Stephen O. Moneva

Energy Cost of Selected Physical Activities of Older Persons Living in Taguig City, the Philippines / Hazel T. Lat, Chelcey Lauren T. Lim, Magnolia B. Velasquez, David Kenneth C. Mendoza, Kyler Kenn M. Castilla, and Robby Carlo Tan

Integrated Vector Control (IVC) Strategies and Services of Barangay Health Stations (BHS) in District 5 of Manila City against Dengue Mosquitoes amid the COVID-19 Pandemic / Bryan Joseph Y. Tan, Julianna A. Blas, Kayla Mae V. Quismundo, and Arlene G. Bertuso

Telepsychiatry Enables Better Mental Health Care Access in a Southern Philippines Hospital / Gregorio R. Candelario Jr., Cristela Mae C. Candelario, and Reagan Joseph T. Villanueva

Assessment of Nutritional Quality of Plant-based Meat Alternatives Sold in the Philippines / Jin Mark D.G. Pagulayan, Mark Paulo S. Tolentino, Gerieka R. Anapi, Airisse Rae P. Basinang, and Casiana Blanca J. Villarino

Metabolism Capacity of Medium Chain Fatty Acids from Virgin Coconut Oil: an In Vivo Study [Research Note] / Van Thi Ai Nguyen

Defining Risk: Hepatitis A Virus in Philippine Shellfish (Oyster and Mussels) / Abigail S. Rustia, Crisanto M. Lopez, Erniel B. Barrios, Dennis D. Tanay, Patricia Mae M. Lagazon, John Carlo G. Gosilatar, and Leslie M. Dalmacio

Diet Adequacy of Food Secure and Insecure Households: Using Food Threshold as Reference Food Cost / Charina A. Javier, Apple Joy D. Ducay, Charmaine A. Duante, Ma. Evette B. Misagal, Josie P. Desnacido, and Marina B. Vargas

Social and Personal Determinants of Herbal Supplement Use in Metro Cebu, the Philippines / Gerard Lee L. See, Florencio V. Arce Jr., Gea Abigail U. Ecoy, Mark Niño B. Melgo, Micah M. Areja, Lorraine V. Tagle, Athena Jessica S. Ong, and Delia E. Belleza

Acceptability of Telepsychiatry among Overseas Filipino Workers in Kuwait / Cristela Mae C. Candelario, Maria Angelica C. Plata, Ismael L. Cordero Jr., Reagan Joseph T. Villanueva, and Gregorio R. Candelario Jr.