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

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. Hamiguitan and Mt. Musuan. Litter samples were collected from 2w0 installed traps at each site and consequently sorted to components, processed and oven-dried. Data revealed that the estimated annual litter production was highest in Mt. Musuan with 11211.5 kg ha-1, followed by Mt. Apo with 6648.0 kg ha-1 and Mt. Hamiguitan with 4919.5 kg ha-1. Agathis philippinensis contributed the highest litterfall production in Mt. Apo, whereas Barringtonia racemosa and Artocarpus blancoi in Mt. Hamiguitan and Mt. Musuan, respectively. Highest litter turnover was observed in Mt. Musuan (5.35%/day). Litterfall production showed to have a positive correlation with temperature for Mt. Hamiguitan and Mt. Musuan. Among the studied sites, Mt. Musuan had the highest forest primary production. Results of this study support previous reports that lowland forests have high forest productivity. Further, there is a need to plant Philippine endemic and threatened trees, such as A. philippinensis since these prove to have high productivity as in the case of Mt. Apo and Mt. Hamiguitan. Less

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

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 aureus and Pseudomonas aeruginosa in dengue. Taxonomic identification of Syzygium sp. “O-on” collected from Mindanao signifies possible new species through their distribution, ecology and conservation status. Phytochemical analysis showed that crude aqueous and organic solvent extracts contain medicinally important bioactive compound. Highest antimicrobial potentials were observed for the methanolic extracts of Syzygium sp. which inhibited 62.5 and 51.16% of the tested microorganisms, respectively, with higher activity against antibiotic-resistant bacteria (83.3%). We suggest that the Syzygium sp. could be potentially exploited to control the behaviors of this pathogen as well as for its utilization as a lead compound in screening for anti-dengue agents based on new antimicrobial targets. Less

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

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 palustris), and type of processing methods at various levels (blanching at 80?C for 1, 2 and 3 minutes, boiling at 4, 5 and 6 minutes; freezing at 1, 2 and 3 weeks; microwave at 30, 60 and 90 seconds; oven dry at 70?C for 1, 3 and 5 hours; steaming at 8, 9 and 10 minutes; vacuum packaging at 1, 2 and 3 weeks and fresh as control) were studied. Main effects were based on fern species, process and levels while, interaction effects comprise the combinations of the main effects. Results revealed that the main and interaction effects to all parameters used were significantly different. D. esculentum has a higher TPC and TFC than S. palustris. However, S. palustris attained higher DPPH radical scavenging activity than D. esculentum. Among the processing methods, oven drying attained high TPC and TFC while steaming increased the DPPH radical scavenging activity. Both of these processes were best at low levels. Less

Young people are deeply implicated in the Marawi siege. Many commentaries and studies view them in either of two ways. On the one hand, they are the sector characterized as most vulnerable to radicalization. Researchers focus on the factors that… More

Young people are deeply implicated in the Marawi siege. Many commentaries and studies view them in either of two ways. On the one hand, they are the sector characterized as most vulnerable to radicalization. Researchers focus on the factors that lead them to violent extremism (Casey and Pottebaum 2018). But on the other hand, they are also characterized as passive victims needing relief and protection (Haynes and Tanner 2015). While these depictions may be legitimate in their own ways, they contradict each other. They are either perpetrators of violence or its victims. But they also share important similarities. These depictions derive from deep concerns about the wellbeing of young people in conflict situations. This sentiment is valid because they ought to be enjoying their youth and discovering their talents and abilities at school. And yet both depictions also share a problematic assumption. That they are either prone to violence or victims of conflict frames young people as a social problem at the same time, taking them as a social problem evidently carries a moral undertone: While some may be driven by a sense of righteous indignation, some others may be carried away by their ignorance (Hughes 2016). These frames, taken together, are blind to the youths’ potential contributions as effective agents of change, especially in post-conflict reconstruction. Research shows that although it may force young people to take on adult roles for which they are unprepared, conflict does not necessarily cripple their abilities to see into the future (Schwartz 2010). They do have stories and aspirations to share, some of which remain rooted in idealism and hope that tomorrow will be better. This is the basis of our ongoing study that documents the narratives of young people before, during, and after the Marawi siege. Our project, funded by the Department of Science and Technology (DOST), involves interviewing Muslim, Christian, and Lumad youths. We are also working with Reemar Alonsagay, a recent graduate of MSU – Marawi. We wish to spell out the importance of our research and some of our findings in this Perspective piece Less

In Linguistics, studies have been made on the interaction among intercultural participants to identify and explain the communication strategies they employed. However, only a few studies have explored the communication strategies between Korean and Filipino women. This study described and… More

In Linguistics, studies have been made on the interaction among intercultural participants to identify and explain the communication strategies they employed. However, only a few studies have explored the communication strategies between Korean and Filipino women. This study described and analyzed the verbal communication strategies and female speech between female Filipino and Korean students at the University of San Carlos (USC). Six paired research participants were asked to record their interaction. The conversations were natural, everyday conversations. Results of the study revealed that unfilled pauses, fillers, and self-repetition were the most commonly used as communication strategies from both nationalities. This study provides implications to intercultural pragmatics Less