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2019

VOLUME 12 NUMBER 1 (January to June 2019)

PopSci ARTICLE
The journey to a tick vaccine
by Luis Wilfrido Atienza
1

PopSci ARTICLE
Chemicals cleaning water
by Luis Wilfrido Atienza
3

PopSci ARTICLE
Powering up with algae
by Luis Wilfrido Atienza
5

PopSci ARTICLE
Scientists keeping an eye on mining
by Luis Wilfrido Atienza
7

REVIEW  
Microbial oceanography studies in the context of climate change in the Philippines
by Deo Florence L. Onda, Mary Ann G. Santos, Donna de la Cruz- Papa, Aletta T. Yñiguez, Rhodora V. Azanza, and Maria Auxilia T. Siringan
9

PopSci ARTICLE
Fishing for new drugs
by Luis Wilfrido Atienza
24

PopSci ARTICLE
Work on vaccines continues
by Luis Wilfrido Atienza
26

PopSci ARTICLE
Mapping out plant disease
by Luis Wilfrido Atienza
29

ARTICLE  
Yield improvement with compost amendment and Trichoderma microbial inoculant (TMI) in rice paddies inundated by copper-rich mine tailings
by Virginia C. Cuevas, Cirilo A. Lagman, Jr., Xavier Anupo, Joey I. Orajay, and Francas G.E. Malamnao
31

ARTICLE  
Identification of cysteine knot peptides in four Philippine plant species using mass spectrometry and transcriptome analysis
by Bea A. Crisostomo, Arnelson Arwin G. Atis, Denise Noelle R. Mirano-Bascos, and Christine C. Hernandez
31

PopSci ARTICLE
A new kind of paper
by Luis Wilfrido Atienza
62

PopSci ARTICLE
Getting ahead of dengue 
by Luis Wilfrido Atienza
64

PopSci ARTICLE
Watching the monkeys 
by Luis Wilfrido Atienza
66

ARTICLE  
Serology and DNA-based detection and serotyping of Actinobacillus pleuropneumoniae Pohl from backyard pigs in selected provinces of Luzon, Philippines
by Almagrace A. Velasquez, Therese Marie A. Collantes, Wenchie Marie L. Lumbera, Saubel Ezrael A. Salamat, Jaymee R. Encabo, Bernadette C. Mendoza, and Lucille C. Villegas
68

LETTER TO THE EDITOR  
Accounting for science: Financial ratios as a tool for science research
by Red Thaddeus D. Miguel
80

ARTICLE  
Utilizing data-based artificial intelligence to enable science-based models and dynamic feedback controllers to adapt to disasters
by Jose B. Cruz, Jr.
82

PopSci ARTICLE  
Testing the tests
by Luis Wilfrido Atienza
92

ARTICLE  
Identifying potential upper mesophotic coral ecosystems in Masinloc, Zambales, Philippines using recreational-grade side scan sonars
by Paul Caesar M. Flores, Fernando P. Siringan, Ritzelle L. Albelda, Kevin Thomas B. Go, and Patrick C. Cabaitan
95

VOLUME 12 NUMBER 2 (July to December 2019)

PopSci ARTICLE  
Advancing farms and farmers
by Luis Wilfrido Atienza
102

FEATURE
Birthing a mathematical biology community in the Philippines
by Jomar F. Rabajante, Christian Joel D.M. Custodio, Ariel L. Babierra, Juancho A. Collera, Aurelio A. de los Reyes V., Ricardo C.H. del Rosario, Noel T. Fortun, Editha C. Jose, Angelyn R. Lao, May Anne E. Mata, Victoria May P. Mendoza, Racquel U. Tabornal, and Jerrold M. Tubay
104

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2018

VOLUME 11 NUMBER 1 (January to June 2018)

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2017

VOLUME 10 NUMBER 1 (January to June 2017)

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2016

INTERNATIONAL JOURNAL OF PHILIPPINE SCIENCE AND TECHNOLOGY

VOLUME 9 NUMBER 1 (January to June 2016)

WHITE PAPER 
Knowledge-Based Development and Governance: Challenges and Recommendations to the Duterte Administration, 2016-2022
University of the Philippines (Alfredo E. Pascual, Gisela Padilla-Concepcion, Ernesto M. Pernia, Jose Y. Dalisay, Edna E.A. Co,
Alice Ross T. Morta, Jeanena Mae E. Rafer, and Lea Marie F. Diño)
1

ARTICLE 
Adsorbate-induced demagnetization: borohydride on magnetic substrates
Ryan Lacdao Arevalo, Mary Clare Sison Escaño, Allan Abraham Bustria Padama, and Hideaki Kasai
10

ARTICLE 
Grain quality of rice in selected retail stores and supermarkets in the Philippines
Arvin Paul P. Tuaño, Manuel Jose C. Regalado, and Bienvenido O. Juliano
15

SHORT COMMUNICATION 
Identification of prohibited red piranha, Pygocentrus nattereri (Kner 1858) from confiscated juvenile fish in Manila, Philippines
Katreena P. Sarmiento, Minerva Fatimae H. Ventolero, and Mudjekeewis D. Santos
23

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2015

INTERNATIONAL JOURNAL OF PHILIPPINE SCIENCE AND TECHNOLOGY

VOLUME 8 NUMBER 1 (January to June 2015)

EDITORIAL
International Journal of Philippine Science and Technology
Gisela Padilla-Concepcion and David Hall
1

WHITE PAPER
Philippines Innovation Ecosystem Assessment: Executive Summary
Science, Technology, Research and Innovation for Development (STRIDE)
2

FEATURE
A Scientist’s Primer to Benito Vergara National Scientist
Clarissa C. David
8

REVIEW
Population, economic growth, and inclusivity
Ernesto M. Pernia and Elena E. Pernia
12

ARTICLE
Symmetry-breaking bifurcations in two mutually delay-coupled lasers
Juancho A. Collera
17

ARTICLE
Ordinal regression analyses of breastfeeding duration in the Philippines
Jesper L. Abolencia, Ananias G. Quipit, Jr., Robert Neil F. Leong, and Frumencio F. Co
22

ARTICLE
New records of an Invasive Calanoid Copepod, Arctodiaptomus dorsalis (Marsh, 1907) in freshwater ecosystems in the Bicol Peninsula (Luzon Is., Philippines)
Eric Zeus C. Rizo, Jhaydee Ann F. Pascual, Duke Jesse B. Dy, Lorenzo Jose A. Labicane, Clarice B. Trinidad, and Rey Donne S. Papa
27

ARTICLE
An assessment of chronotype and social jetlag among Filipinos
Eric Zeus C. Rizo, Jhaydee Ann F. Pascual, Duke Jesse B. Dy, Lorenzo Jose A. Labicane, Clarice B. Trinidad, and Rey Donne S. Papa
31

POP SCIENCE
Rubbing Elbows with Nobel Laureates and Japanese Royalty
Imee Su Martinez
41

ARTICLE
Electrical properties of an individual ZnO micro/nanorod
Alexandra B. Santos-Putungan, Leonalyn M. Bambao, and Roland V. Sarmago
43

ARTICLE
Biochemical and molecular characterization of two 11S globulin isoforms from coconut and their expression analysis during seed development
Kristian Mark P. Caldo, Roberta N. Garcia, and Evelyn Mae Tecson-Mendoza
46

ARTICLE
Finding the optimal dose for psoriasis ultraviolet radiation therapy through multi-objective evolutionary optimization on a skin model
Arjay C. Cayetano, Francisca C. Roa, Eduardo R. Mendoza, and Prospero C. Naval, Jr.
52

POP SCIENCE
Sustained Global Attention to Emerging Pandemic Threats and Risks: The need to strengthen One Health systems and Whole-of-Society preparedness
Noel Lee J. Miranda
58

INTERNATIONAL JOURNAL OF PHILIPPINE SCIENCE AND TECHNOLOGY

VOLUME 8 NUMBER 2 (July to December 2015)

ARTICLE
Levels and sources of potassium, calcium, sulfur, iron and manganese in major paddy soils of the Philippines
Jehru C. Magahud, Rodrigo B. Badayos, Pearl B. Sanchez, and Pompe C. Sta. Cruz
1

COMMENTARY
The “Land for Skills” Program: A Mechanism for Conserving Research and Human Resources in a Developing Country in the Era of Globalization
Teodoro Tigno Jr.
9

ARTICLE
Isolation and characterization of culturable thermophilic bacteria from hot springs in Benguet, Philippines
Socorro Martha Meg-ay V. Daupan and Windell L. Rivera
14

SHORT COMMUNICATION
Development of microsatellite markers for genetic diversity analysis in Glossogobius giuris (Hamilton, 1822) and Rhinogobius giurinus (Rutter, 1897)
Abriel S. Bulasag, Nathalie T. del Agua, Aprill S. Punongbayan, and Maria Genaleen Q. Diaz
19

ARTICLE
Molecular profiling of culturable bacteria from portable drinking water filtration systems and tap water in three cities of Metro Manila, Philippines
Edward A. Barlaan, Janina M. Guarte, and Chyrene I. Moncada
24

ARTICLE
An individual-based model of long-term forest growth and carbon sequestration in planted mangroves under salinity and inundation stresses
Severino G. Salmo III and Dranreb Earl O. Juanico
31

POP SCIENCE
Coconuts and the Filipino Diaspora
Augustine Doronila
31

ARTICLE
Resilience to thermal stress of coral communities in Talim Bay, Lian, Batangas
Norievill B. España, Wilfredo Y. Licuanan, and Porfirio M. Aliño
37

SHORT COMMUNICATION
Green Synthesis of Bimetallic PdAg Nanowires as Catalysts for the Conversion of Toxic Pollutants
Jose Isagani B. Janairo
41

POP SCIENCE
Integrative Societal Resilience or ‘One Resilience’ Approach: Towards Optimal Health and Wellbeing
Noel Lee J. Miranda
44

SHORT COMMUNICATION
Potential of Endophytic Fungi of Barnyard Grass Weed for Biological Control of the Rice Sheath Blight Pathogen, Rhizoctonia solani Kühn
Dindo King M. Donayre and Teresita U. Dalisay
44

SHORT COMMUNICATION
Incidence and molecular detection of Salmonella enterica serogroups and spvC virulence gene in raw and processed meats from selected wet markets in Metro Manila, Philippines
Shiela A. Soguilon-Del Rosario and Windell L. Rivera
52

ARTICLE
Copper-resistant, biofilm-forming bacteria for potential use in rehabilitation of copper-contaminated wastewater
Opulencia, R. B., Bambase, M. E. Jr., Perdigon, K. M. D., Demafelis, R. B., Llamado, A. A., Franco, R. A. G., Mogul, R. T., and Raymundo, A. K.
56

REVIEW
Bacteriocins from Lactic Acid Bacteria: A Review of Biosynthesis, Mode of Action, Fermentative Production, Uses, and Prospects
Rodney H. Perez, Maria Teresa M. Perez, and Francisco B. Elegado
61

REVIEW
Acceptability, nutritional, and potential health values of sweet sorghum [Sorghum bicolor (L.) Moench] coffee substitute
Sheila F. Abacan, Wilma A. Hurtada, Erlinda I. Dizon, and Aimee Sheree A. Barrion
68

SHORT COMMUNICATION
Assessment of bacterial species present in Pasig River and Marikina River soil using 16S rDNA phylogenetic analysis
Maria Constancia O. Carrillo, Paul Kenny L. Ko, Arvin S. Marasigan, and Arlou Kristina J. Angeles
73

SHORT COMMUNICATION
Relationship of agro-morphological traits to water use efficiency of irrigated lowland rice varieties under screenhouse condition
Ace Mugssy L. Agustin and Nina M. Cadiz
78

PHILIPPINE SCIENCE LETTERS

VOLUME 8 NUMBER 1 (January to June 2015)

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2014

VOLUME 7 NUMBER 1 (January to June 2014)

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2013

VOLUME 6 NUMBER 1 (January to June 2013)

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2012

VOLUME 5 NUMBER 1 (January to June 2012)

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2011

VOLUME 4 NUMBER 1 (January to June 2012)

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2010

VOLUME 3 NUMBER 1 (January to June 2010)

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2008

VOLUME 1 NUMBER 1 (January to December 2008)

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