Abstract:Synthetic preservatives face regulatory pressure, motivating plant-derived alternatives with documented fungitoxic activity. We screen polar and non-polar extracts from six native shrubs against brown-rot and white-rot fungi in mini-block assays. Two species yield consistent mass-loss reductions at concentrations achievable by hot-water maceration, though leaching tests show performance drops unless paired with low-toxicity fixatives compatible with indoor joinery applications.
Abstract:Digital annotation tools expand feedback volume, yet students often underuse comments that require higher-order revision. We code instructor comments and student revision moves across four blended modules and relate uptake to prior feedback-literacy training. Short peer-calibration sessions before major drafts increase substantive revisions more than longer comment banks, suggesting instructional design should prioritize interpretation skills over comment quantity.
Abstract:Passive acoustic recorders can track breeding choruses where visual surveys are unsafe after dark. We derive signal-to-noise and call-diversity metrics across twenty-four riparian sites spanning a continuum of agricultural fragmentation. Metrics decline nonlinearly once corridor width falls below a site-specific threshold, informing buffer policies that protect acoustic signaling space rather than canopy cover alone.
Abstract:Environmental laboratories increasingly face challenges to sample integrity in litigation and certification audits. We prototype a lightweight hashing-and-timestamp workflow that binds vial identifiers, transfer events, and freezer access logs without requiring blockchain infrastructure. Pilot audits show reduced reconstruction time for disputed transfers while remaining compatible with existing LIMS export formats used by regional water-quality networks.
Abstract:Cities prioritize tree planting for cooling, but planting locations differ sharply in pedestrian exposure. We couple high-resolution canopy maps with pedestrian-flow layers to simulate midday temperature reductions under three expansion budgets. Targeting corridors with high foot traffic and low existing shade yields larger comfort gains per planted stem than maximizing canopy area alone.
Abstract:Joint-liability loans interact with kinship-based risk sharing in ways that can crowd out or complement precautionary savings. We survey borrower groups before and after loan cycles and estimate portfolio shifts across livestock, education, and remittance buffers. Groups with denser mutual-aid ties allocate more capital to productive assets while maintaining emergency transfers, suggesting product design should map informal insurance density rather than assume uniform risk attitudes.
Abstract:Provenance ranking often relies on single-season survival, which can mis-order families under oscillating dry spells. We train gradient-boosted models on multi-year height, stomatal conductance, and soil moisture covariates from fifty provenances. Cross-validated ranks remain stable when at least three dry seasons are included, giving breeders a practical filter before expensive field deployment.
Abstract:Thirty-day readmissions strain surgical wards yet many risk scores need specialty labs rarely available in mid-sized hospitals. We build logistic and random-forest models from admission vitals, comorbidity codes, and length of stay alone. Discrimination approaches published specialty scores when discharge day-of-week and prior emergency visits are added, supporting triage checklists usable without proprietary analytics platforms.
Abstract:Thermally modified decking must balance dimensional stability with coating adhesion after outdoor exposure. We apply three temperature-time schedules to fast-grown eucalyptus boards and track contact-angle dynamics through accelerated weathering cycles. Mid-severity treatments darken surfaces acceptably for exterior markets while preserving primer adhesion better than high-temperature schedules that over-crosslink extractives at the outermost cell layers.
Abstract:Ambiguous forest boundaries undermine benefit-sharing agreements in collectively managed woodlands. We pilot an open-source mobile workflow where local enumerators digitize agreed boundary walks, resource-use points, and disputed segments during facilitated mapping sessions. Accuracy assessed against differential GPS improves when elders validate polygon vertices before upload, demonstrating a low-cost method for documenting customary tenure ahead of formal registration programs.