Research

As the national university, we champion and support innovative research that addresses the country’s most pressing challenges.

15 Aug 2023

UP System

Study reports the first cases of yaws, a chronic and highly contagious skin and bone infection, among the Aetas of Quezon

Yaws is a chronic, highly contagious skin and bone infection caused by a bacteria, Treponema pallidum subspecies pertenue, usually affecting...

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09 Aug 2023

UP Los Baños

Villages with a large population of women, older persons and agricultural households are most exposed to drought risk

Islands are highly vulnerable to natural disasters and extreme weather events due to their physical size, remoteness, and limited resources....

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04 Aug 2023

UP System

Continuing ignition practices have transformed Tau-Buhid Indigenous lands into “territories of fire”

The article challenges the assumption that land tenure is contingent on acquiring a land title. It argues that for Indigenous...

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02 Aug 2023

UP Los Baños

Occupational therapists can be tapped to design age-friendly cities and communities

Urban planning for age-friendly environments is an important issue, and occupational therapists and occupational scientists could contribute to planning such...

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31 Jul 2023

UP Manila

Injuries suffered by workers on the job such as from falls and contact with sharp objects had been fatal

Although Occupational Health and Safety has been introduced as early as 1971, the protection of workers remained insufficient globally as...

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27 Jul 2023

UP Cebu

Human population growth threatens the largest and only protected key biodiversity area in Cebu Island

The continuing pressure on the natural environment exerted by human activities such as land conversion has been threatening to drive...

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25 Jul 2023

UP Diliman

The seaweed Saccharina japonica, an important aquaculture crop, shows increased photosynthetic activity under blue light

Saccharina japonica kelps grow naturally in the subtidal zone up to more than 20 m, where blue light (400–500 nm) is...

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21 Jul 2023

UP Los Baños

Teachers are influenced by their own beliefs in how they promote scientific argumentation in class

This qualitative multiple-case study discusses the importance of investigating the alignment of four biology teachers’ beliefs and practices when teaching...

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20 Jul 2023

UP Mindanao

Future solid waste management system in Davao City should prioritize plastic waste treatment

To reduce adverse environmental impact, municipal solid waste management (MSWM) practices in developed countries are adopted in developing countries without...

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19 Jul 2023

UP Los Baños

Pesticide residues were found in commonly consumed vegetables and those labeled “organic”

Pesticide residues on vegetables pose food safety concerns. In this study, an assay called the Rapid Bioassay for Pesticide Residues...

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19 Jul 2023

UP Diliman

Surface constraint approach optimizes the design and trajectory of solar sails that are constrained to move on surfaces

Solar sailing is a propulsion technology that uses the solar radiation pressure of the sun as a source for thrust....

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18 Jul 2023

UP Diliman

Studies on disasters can only be inclusive if scholars and practitioners “decolonize” themselves

The discussions on the decolonization of knowledge in disasters are not entirely new and have been the subject of inquiries...

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Research

Planktonic foraminifera are calcareous zooplankton inhibiting the water column. They are sensitive to hydrographic stresses, and variations in their population may signify shifts in environmental conditions making them valuable for monitoring seasonal changes in modern oceans. In this study, the fluxes (downward  movement) of planktonic foraminifera in the water column were observed for a period of one year in the Maldives. Results show that there is a clear correlation between planktonic foraminifera fluxes and environmental conditions. Strong winds brought by the Asian Monsoon drove mixing in the upper layer of the water column. This enriches nutrients and subsequently results in an increase in planktonic foraminifera fluxes.

This study is the first to report on the fluxes through the water column of planktonic foraminifera in the Maldives. The Maldives, an archipelago stretching from north to south in the Indian Ocean, is made up of two rows of atolls that create an enclosed body of water known as the Inner Sea. Because of its distinctive structure, the Maldives serves as a natural sediment trap preserving a remarkable 25-million-year record of past  environmental shifts in the Indian Ocean (Betzler et al., 2017). Sediment traps were deployed for one year in two areas within the Maldives, namely the Kardiva Channel and Inner Sea. The study investigated how planktonic foraminifera react to hydrographic variations during the monsoon seasons. Gaining insights into the current behavior of planktonic foraminifera with respect to productivity and ocean circulation holds significant importance in reconstructing the history of the oceans.

Read the full paper: https://www.frontiersin.org/articles/10.3389/feart.2023.1141263/full