Abstract:This qualitative study examines how youth media producers use digital storytelling to negotiate cultural identity across online and offline communities. Semi-structured interviews and content analysis of short-form video projects from community media labs reveal recurring practices of bilingual voiceover, archival remix, and place-based narration. Participants describe storytelling as both self-representation and community advocacy, particularly when addressing migration and intergenerational memory. The analysis situates these practices within participatory culture theory and discusses implications for media literacy curricula that treat identity work as a central learning outcome rather than an incidental byproduct.
Abstract:Acoustic emission monitoring is investigated as a non-destructive method for detecting fatigue crack initiation in fillet-welded steel joints under cyclic loading. Sensors arranged in a triangulation pattern localize emission events while waveform features distinguish crack-related signals from fretting and machine noise. Laboratory fatigue tests on S355 specimens show that cumulative AE energy rises sharply several thousand cycles before visible surface cracking. A threshold-based alarm rule is calibrated to minimize false alarms under variable amplitude loading. The approach offers a practical complement to periodic ultrasonic inspection for bridges and industrial frames.
Abstract:Medication non-adherence remains a major barrier to effective chronic disease management. This study applies behavioral economics frameworks to analyze adherence decisions among patients with hypertension and type 2 diabetes. Discrete choice experiments and follow-up pharmacy refill records are used to estimate the influence of present bias, loss framing, and reminder salience. Results indicate that loss-framed adherence contracts and default refill enrollment raise thirty-day adherence rates more than equivalent financial incentives delivered as gains. Heterogeneity analysis shows stronger effects among patients reporting higher time inconsistency. The findings inform low-cost behavioral interventions in outpatient chronic care programs.
Abstract:Early visual cues of abiotic and biotic stress on plant leaves are often subtle and spatially localized. This paper presents a machine vision pipeline combining multispectral imaging, texture descriptors, and convolutional classifiers for early stress detection prior to widespread chlorosis. Field trials on tomato and rice seedlings under controlled drought and fungal inoculation show that the proposed system achieves higher sensitivity than RGB-only baselines at the same false-positive rate. Attention maps highlight vein-adjacent regions consistent with expert agronomic annotation. Deployment considerations for low-cost cameras and edge inference hardware are discussed for smallholder monitoring programs.
Abstract:An adaptive finite element formulation is developed for transient heat conduction in layered composite plates with temperature-dependent conductivity. Mesh refinement is driven by residual-based error indicators concentrated near material interfaces and moving thermal fronts. Numerical experiments on three-layer and five-layer configurations show that adaptive remeshing reduces degrees of freedom by approximately forty percent relative to uniform meshes at equivalent accuracy. Validation against analytical solutions for simplified bilayers and against experimental infrared measurements for a carbon-fiber laminate confirms the approach. The method is suitable for preliminary thermal design of aerospace and electronics packaging laminates.
Abstract:Household energy transition away from traditional biomass remains uneven in peri-urban regions. Drawing on survey data from three peri-urban districts, this paper examines how income volatility, tenure security, gender of household decision-makers, and access to microcredit shape adoption of cleaner cooking and heating fuels. Logistic regression models identify tenure security and female decision-making authority as significant predictors of transition after controlling for income. Qualitative interviews reveal that intermittent grid reliability and appliance financing constraints delay full fuel switching even among higher-income households. Policy implications include coupling fuel subsidies with tenure formalization and targeted credit for efficient appliances.
Abstract:Doped titanium dioxide nanocomposites were synthesized and evaluated for photocatalytic degradation of common organic contaminants under visible light. Nitrogen and transition-metal co-doping extended absorption into the visible range and reduced electron-hole recombination relative to undoped TiO2. Degradation kinetics of model dyes and phenolic compounds followed pseudo-first-order behavior with rate constants dependent on dopant ratio and calcination temperature. Reusability tests over five cycles showed limited activity loss when surface area and crystallinity were preserved. The work demonstrates a scalable synthesis route for visible-light photocatalysts suitable for tertiary wastewater polishing in resource-constrained settings.
Abstract:This study compares ensemble learning strategies for multi-label text classification across heterogeneous document collections. Gradient boosting, random forests, and stacked generalization pipelines are evaluated against single-model baselines using micro-averaged F1 and label ranking loss. Feature representations include TF-IDF, contextual embeddings, and hybrid sparse-dense combinations. Results indicate that stacked ensembles with calibrated base learners improve rare-label recall while maintaining competitive precision on frequent classes. Ablation experiments show that diversity among base models contributes more to performance gains than increased model depth alone. The findings provide practical guidance for deploying multi-label classifiers in information retrieval and content moderation workflows.
Abstract:Delayed fee collection limits sustainability of cooperative veterinary outreach. A twelve-month pilot linked treatment records to unified payments interface billing across four village clusters serving mixed cattle and buffalo holdings. Payment completion within seven days rose from thirty-eight to seventy-one percent, while veterinarians reported reduced administrative time and improved traceability of preventive health schedules.
Abstract:Whole-crop barley silage is prone to heating when density at ensiling is inconsistent. Laboratory mini-silos tested homofermentative and heterofermentative inoculant blends under low, medium, and high compaction. Heterofermentative treatments extended aerobic stability after opening by reducing yeast counts, though benefits diminished when dry matter exceeded forty-two percent regardless of inoculant type.