Publications by authors named "K H Ngai"

ObjectivesFrailty is associated with significant mortality and morbidity in hospitalised patients. We describe physiotherapy and occupational therapy practices in hospitalised frail patients and examine the role of early intervention.MethodsWe performed a prospective, observational cohort study in a medical assessment unit in a tertiary care hospital.

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Article Synopsis
  • - General properties of complex materials like amorphous polymers and molecular glass-formers have been identified through extensive experiments, leading to the development of various theories to explain these phenomena.
  • - Conflicting theories can both adequately explain these properties, creating confusion about which is correct, and progress halts until new experiments clarify the situation.
  • - Mark Ediger's innovative experiments play a crucial role in testing these theories, particularly concerning dynamics in polymer blends and the behaviors related to glass formation and relaxation processes.
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Murali [, 2024, 15, 3376-3382] made ambient and high pressure dielectric measurements of a supercooled aqueous mixture of an acidic ionic liquid to find the presence of the primary () conductivity relaxation together with the secondary () conductivity relaxation originating from the water clusters confined by the cations and anions with relaxation times and respectively. From the isothermal and isobaric conductivity relaxation data found on varying thermodynamic conditions ( and ) at constant are the invariance of (i) the frequency dispersion or the Kohlrausch function exponent (1 - ) of the primary conductivity relaxation, and (ii) the ratio of the primary and secondary conductivity times, /. This co-invariance of , , and (1 - ) at constant was observed before in non-aqueous ionic liquids, but it is found for the first time in aqueous ionic liquids.

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Background: Individuals reside within communities influenced by various social determinants impacting health, which may harmonize or conflict at individual and neighborhood levels. While some experience concordant circumstances, discordance is prevalent, yet poorly understood due to the lack of a universally accepted method for quantifying it. This paper proposes a methodology to address this gap.

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Suppressing trap-assisted nonradiative losses through passivators is a prerequisite for efficient perovskite light-emitting diodes (PeLEDs). However, the complex bonding between passivators and perovskites severely suppresses the passivation process, which still lacks comprehensive understanding. Herein, the number, category, and degree of bonds between different functional groups and the perovskite are quantitatively assessed to study the passivation dynamics.

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