title: A structural, spectroscopic and theoretical study of the triphenylphosphine chalcogenide complexes of tungsten carbonyl, [W(XPPh3)(CO)5], X=O, S, Se

authors: Cook, Julian B.

subjects: tungsten carbonyl

abstract: The series [W(XPPh3)(CO)5], X=O, S, Se has been structurally determined by X-ray crystallography and fully characterised spectroscopically to provide data for comparing the bonding of the Ph3PX ligands to the metal. The P-X-W angles are 134.3°, 113.2° and 109.2°, respectively, for X=O, S, Se. The bonding has been analysed using EHMO calculations which suggest that lower P-X-W angles depend on the relative importance of σ-bonding, which in turn depends on the chalcogen in the order X=Se > S > O. The effect is enhanced by lower energies of the metal σ and π orbital energies.

text: A structural, spectroscopic and theoretical study of the triphenylphosphine chalcogenide complexes of tungsten carbonyl, [W(XPPh3)(CO)5], X=O, S, Se The series [W(XPPh3)(CO)5], X=O, S, Se has been structurally determined by X-ray crystallography and fully characterised spectroscopically to provide data for comparing the bonding of the Ph3PX ligands to the metal. The P-X-W angles are 134.3°, 113.2° and 109.2°, respectively, for X=O, S, Se. The bonding has been analysed using EHMO calculations which suggest that lower P-X-W angles depend on the relative importance of σ-bonding, which in turn depends on the chalcogen in the order X=Se > S > O. The effect is enhanced by lower energies of the metal σ and π orbital energies.

year: 2004-02-01

title: An investigation of wearable and IoT technology for health applications: a user centered approach

authors: Shi, Yigang

abstract: The convergence of wearable technologies and the Internet of Things (IoT) has opened new possibilities for health monitoring and older adults care. However, existing systems remain fragmented, often lack interoperability, and tend to overlook the unique usability needs of older adults. This research investigates how a user-centered approach can inform the design and development of a Unified Wearable Device Framework (UWDF) to enhance integration, accessibility, and data visualization across heterogeneous IoT devices. Drawing on qualitative research involving older adults, caregivers, healthcare professionals, and technical personnel, the study identifies key design requirements and develops a working prototype of the UWDF platform. The framework emphasizes simplicity, modularity, and human-centered computing (HCC) principles. Usability testing demonstrates that the platform improves ease of interaction, supports personalized health monitoring, and facilitates caregiver engagement. The research contributes both a practical solution for managing diverse wearable health devices and a methodological reference for designing inclusive healthcare technologies that support aging-in-place.

text: An investigation of wearable and IoT technology for health applications: a user centered approach The convergence of wearable technologies and the Internet of Things (IoT) has opened new possibilities for health monitoring and older adults care. However, existing systems remain fragmented, often lack interoperability, and tend to overlook the unique usability needs of older adults. This research investigates how a user-centered approach can inform the design and development of a Unified Wearable Device Framework (UWDF) to enhance integration, accessibility, and data visualization across heterogeneous IoT devices. Drawing on qualitative research involving older adults, caregivers, healthcare professionals, and technical personnel, the study identifies key design requirements and develops a working prototype of the UWDF platform. The framework emphasizes simplicity, modularity, and human-centered computing (HCC) principles. Usability testing demonstrates that the platform improves ease of interaction, supports personalized health monitoring, and facilitates caregiver engagement. The research contributes both a practical solution for managing diverse wearable health devices and a methodological reference for designing inclusive healthcare technologies that support aging-in-place.

year: 2025-08-12

title: Behind the label: Complexities of identifying Māori whānau in an away from home hospital transfer

authors: Masters-Awatere, Bridgette

subjects: Māori whānau

abstract: This paper highlights two methodological issues that arose for a group of Māori researchers during the first few months of a Māori CoRE funded project. The issues were in relation to defining 1) the evolving construction of Māori whānau in New Zealand, and 2) an away from home hospital transfer. Through the process of reflexive practice about our knowledge constructs the research team highlight some of the complexities that we as indigenous researchers had to navigate when working within a cultural context. We describe the details of the Hospital Transfers project and reflect on the learning experienced during the pilot interview phase of a three year project.

text: Behind the label: Complexities of identifying Māori whānau in an away from home hospital transfer This paper highlights two methodological issues that arose for a group of Māori researchers during the first few months of a Māori CoRE funded project. The issues were in relation to defining 1) the evolving construction of Māori whānau in New Zealand, and 2) an away from home hospital transfer. Through the process of reflexive practice about our knowledge constructs the research team highlight some of the complexities that we as indigenous researchers had to navigate when working within a cultural context. We describe the details of the Hospital Transfers project and reflect on the learning experienced during the pilot interview phase of a three year project.

year: 2017