Universidade Federal do Espírito Santo

Machine learning survival models for colorectal cancer: advantages of random survival forests over classification algorithms

Colorectal cancer remains a major cause of cancer-related mortality worldwide, motivating the development of accurate prognostic models. Despite advances in machine learning for survival prediction, a common practice in the literature reformulates time-to-event outcomes as binary...

Thermokinetic, Thermodynamic, and Pyrolysis Analysis of Agro-Industrial Biomass for Bioenergy: Insights from Isoconversional Models and Neural Networks

Abstract The growing demand for renewable energy and sustainable waste management has driven interest in the thermochemical valorization of agro-industrial residues. This study investigated the thermokinetic, thermodynamic, and pyrolysis behavior of four lignocellulosic biomasses...

Surfactantsfor Enhanced Oil Recovery: Progress andInnovations over the Past Decade

Abstract Surfactant-based strategies have emerged as key approaches for enhancing oil recovery (EOR), particularly in mature reservoirs where conventional production methods leave a substantial fraction of oil unrecovered. This review provides a comprehensive and critical assessm...

Characterization and functional evaluation of a fiber-optic instrumented impedance-controlled upper-limb exoskeleton

The use of active exoskeletons for musculoskeletal disorder (MSD) prevention is increasing in industrial environments. Wearable sensing technologies enable closed-loop control of these devices. However, magnetic disturbances and sensor fixation issues can compromise measurement r...

Toward Sustainable Water Treatment: Hydraulic Retention Time Effects on Natural and Chemical Coagulants in Continuous-Flow Helically Coiled Tube Flocculators

Access to safe drinking water remains a global challenge, particularly in decentralized and low-resource settings where conventional treatment technologies may be economically or operationally impractical. Combining low-energy hydraulic flocculation systems with biodegradable nat...

Effect of carcass electrical stimulation on sheep and goat meat quality: a meta-analysis study

Context The utilization of electrical stimulation (ES) in small ruminant carcasses is less common than in beef processing facilities. Nevertheless, ES shows promise in mitigating cold shortening and improving meat quality traits in small ruminants. Aim This meta-analysis assessed...

Stable biomass accumulation driven by conservative traits in Brazil’s tropical montane forests

While tropical forests are key CO2 sinks, local drivers of aboveground biomass (AGB) dynamics in diverse systems like the Brazilian Atlantic Forest remain uncertain, constraining ecological references for restoration and long-term carbon sequestration. This study evaluates how bi...

Case Studieson Sample Preparation with Diluted Acidfor Elemental Determination

Abstract Green chemistry provides a framework for redesigning laboratory practices to reduce environmental and safety impacts. In elemental analysis, replacing highly concentrated acids during sample preparation represents an important step toward more-sustainable practices. This...

Proteomic profile associated with the m aturation of somatic embryos of Euterpe edulis under polyamine treatments in material derived from a single mother plant

Abstract Euterpe edulis is of ecological and economic relevance and is currently threatened with extinction. Its vulnerability to extinction, combined with the recalcitrant nature of its seeds, justifies the search for alternative reproduction techniques. Somatic embryogenesis is...

Kinectics of calcium diffusion and associated physical changes in papaya fruit

Calcium-based treatments are recognized for their effectiveness in preserving the postharvest quality of papaya; however, the mechanisms and kinetics of calcium diffusion within the fruit pulp remain insufficiently characterized. This study aimed to characterize the calcium diffu...

Controlled-release phosphorus dynamics of urine-derived struvite for nutrient recovery and circular agriculture in tropical soils

Abstract Phosphorus recovery from human waste is a cornerstone of circular nutrient management, yet the behavior of recovered phosphorus minerals in highly weathered tropical soils remains poorly understood. This study evaluated the agronomic performance and phosphorus dynamics o...