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- Preliminary results on the efficacy of a neurocognitive training programme with multisensory integration in Major Neurocognitive DisorderPublication . Pinto, Joana O.; Dores, Artemisa R.; Peixoto, Bruno; Barbosa, Fernando; Dores, Artemisa; Pinto, Joana ONeurocognitive training was associated with positive effects on global neurocognition in patients with Major Neurocognitive Disorders (ND). However, despite evidence linking sensory deficits to neurocognitive dysfunction in the older population, no prior intervention has targeted neurocognition, including the sensation domain. To explore the efficacy of neurocognitive training with a multisensory integration (MI) component, a sample of 110 older adults was recruited from both daycare centers and nursing homes. Of these, 46 were diagnosed with mild to moderate Major ND and completed a neuropsychological assessment protocol at pre-, post-intervention, and at a 4-month follow-up. Participants were randomly assigned to four groups: NeuroRi, a hands-on neurocognitive training programme; NeuroRi with a MI component; NeuronUP a technology-based programme; and passive control group. All but the passive group completed two sessions per week with neurocognitive tasks for four months. Although this is a pilot study, the preliminary results suggest that combining NeuroRi with MI may offer potential benefits across several neurocognitive domains, including sensory-perceptual functioning in mild to moderate Major ND. However, these findings should be interpreted with caution due to the small sample size and the complex design of the study. This work provides recommendations for the neurocognitive intervention, from planning to assessing meaningful changes, while recognizing the limitations of the study and the need for further research to confirm these preliminary results.
- Performance evaluation of TiAlSiN and TiSiN/TiSiVN coatings during high-speed dry turning of AISI 316 L considering the role of vanadium-based tribo-oxidesPublication . Fernandes, Filipe; Kumar, Ch. Sateesh; Lacalle, Luis Norberto López de; Cavaleiro, Albano; Cavaleiro, Diogo; Kalin, Mitjan; Prajapati, RamanandThis study investigates the tribo-mechanical performance of uncoated, TiAlSiN-coated, and TiSiN/TiSiVN multilayer-coated Al2O3/SiC ceramic tools during dry turning of AISI 316 L austenitic steel across three successive passes at varying cutting speeds. Key machining outputs, including cutting forces, surface roughness, cutting temperature, and tool wear (flank and crater), were analyzed with a focus on oxide formation and selflubricating mechanisms. The TiSiN/TiSiVN-coated tool exhibited the most favorable performance, showing only ~15 % increase in cutting force across passes, ~9 % improvement in flank wear resistance compared to TiAlSiN, and ~ 17 % lower wear progression relative to the uncoated tool at 350 m/min. Surface roughness and cutting temperature trends further confirmed the coating’s superiority, attributed to the formation of V₂O₅ tribo-oxides, which reduce friction and thermal degradation. EDS and SEM analyses validated the wear protection mechanisms, highlighting the adaptive role of vanadium-based layers in mitigating adhesion and thermal fatigue. The results establish TiSiN/TiSiVN as a promising candidate for high-speed dry machining due to its superior mechanical-chemical synergy and wear resistance.