Publications by authors named "S B Ma"

Polymers with strong electron-withdrawing groups (e.g., cyano-containing polymers) are attractive for a wide range of applications due to their high dielectric constant and outstanding electrochemical stability.

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Biomarkers.

Alzheimers Dement

December 2024

Background: Alzheimer's disease (AD) is characterized by a decline in cognitive abilities, with cognitive resilience (CR) denoting the capacity of AD patients to withstand such declines. Prior studies have linked the segregation of functional networks with cognitive resilience in AD. The emergence of dynamic functional connectivity (dFC) is a notable advancement in the assessment of brain network dynamics of CR features in AD.

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Background: Caring for people with dementia in communities inevitably brings heavy burden for their family caregivers. Senses of positive aspects from caring and proper service support may help shape a healthy care journey for carers. This study aims to evaluate the caregiving burden, positive aspects, and service utilization of informal caregivers for community-living older adults with neurocognitive disorders (NCDs).

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Background: To investigate the effects of 40 Hz high-definition transcranial alternating current stimulation (HD-tACS) on subjective sleep quality and domain-specific cognitive functions in mild neurocognitive disorders due to Alzheimer's disease (NCD-AD).

Method: This study was a double blind, sham-controlled randomized clinical trial. Ninety-nine mild NCD-AD patients were randomly assigned to receive a 4-week course treatment of either 40 Hz HD-tACS, HD transcranial direct current stimulation (HD-tDCS), or sham transcranial current stimulation (HD-tCS).

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Synovial exudation, creeping, and lubrication failure in natural cartilage under a long-term normal loading can be counteracted by a tribo-rehydration (sliding-induced rehydration) phenomenon. Hydrogels, as porous materials, can also restore interfacial lubrication and overcome creep through this strategy. At appropriate sliding velocities, water molecules at the interface contact inlet are driven by hydrodynamic pressures into the porous network to resist creep extrusion.

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