This study investigated the phytochemical constituents and in vitro antibacterial efficacy of crude ethanolic and aqueous leaf extracts of three indigenous plant species collected from the karst landscapes of Peñablanca against multi-drug resistant clinical isolates of Staphylococcus aureus and Escherichia coli. Disc diffusion tests demonstrated significant zones of inhibition (p < 0.01) comparable to standard ciprofloxacin controls.

Evaluated predictive analytical models applied to five years of barangay blotter datasets in Cagayan Valley. Findings demonstrate that proactive neighborhood watch training combined with GIS hot-spot reporting reduced property crimes by 34% over a 24-month monitoring window, providing empirical basis for regional municipal peace and order councils.

Evaluated the image contrast-to-noise ratio (CNR) and dose-area product (DAP) across 150 pediatric chest radiographic examinations using optimized exposure parameters in secondary and tertiary diagnostic centers in Cagayan Valley. Results demonstrated a 28% reduction in entrance surface dose without loss of diagnostic image quality.

Proposes an automated blockchain-anchored ledger protocol for preserving digital forensic evidence acquired from suspect cellular devices during Philippine National Police cyber-crime raids, guaranteeing tamper-proof verification in judicial trials.

A cross-sectional investigation examining structural empowerment, occupational stress markers, and resilience coping mechanisms among 210 registered bedside nurses in public and private medical institutions in Region II, offering institutional mental health intervention strategies.

Investigated post-clearance audit mechanisms at Port of Irene and Port of Aparri, measuring the deterrence effect of real-time electronic declaration audits on tariff misclassification among regional industrial importers.

Evaluated the correlation between strategic research seed grant allocations, institutional ethics review accreditation timelines, and faculty publication outputs across 14 colleges in Cagayan Valley, documenting sustainable research administrative governance models.

Community-based epidemiological survey evaluating non-prescription antibiotic acquisition habits, risk awareness, and compliance with prescribed dosage regimens among heads of households in seven rural barangays in Peñablanca, Cagayan.

Assessed the tactical decision-making accuracy of 180 criminology interns subjected to high-stress shoot/don't-shoot simulated virtual environments compared to traditional lecture-based firearm instruction protocols.