title: Positive effects of blue light on motor coordination in older adults: A pilot study

authors: Beaven, Christopher Martyn

abstract: Purpose: Falls are a risk factor for mortality in older adults. Lighting interventions can improve cognitive and motor task performance, but the effect on postural control with relevance to falling is unknown. Methods: Sixteen older adults participated in an intervention study with blue-enriched light delivered visually and/or transcranially for 12 min. Postural control in three conditions (60s eyes-open, dual-task, and eyes-closed), lower-limb motor coordination, and cognitive function were assessed. Results: Relative to placebo, visual blue-enriched light improved reaction time in the motor coordination task by 0.073 ± 0.035s (d = 0.77 ± 0.39; p = 0.003). Visual exposure decreased Area of Sway relative to the combined (d = 0.38 ± 0.26; p = 0.020) and placebo interventions (d = 0.47 ± 0.42; p = 0.067), with no significant effect on cognition. Conclusion: Blue-enriched lighting demonstrates a novel approach to positively impact postural control and motor coordination in older adults. By impacting metrics associated with fall risk, light interventions may provide a clinical countermeasure to decrease the human costs of falls.

text: Positive effects of blue light on motor coordination in older adults: A pilot study Purpose: Falls are a risk factor for mortality in older adults. Lighting interventions can improve cognitive and motor task performance, but the effect on postural control with relevance to falling is unknown. Methods: Sixteen older adults participated in an intervention study with blue-enriched light delivered visually and/or transcranially for 12 min. Postural control in three conditions (60s eyes-open, dual-task, and eyes-closed), lower-limb motor coordination, and cognitive function were assessed. Results: Relative to placebo, visual blue-enriched light improved reaction time in the motor coordination task by 0.073 ± 0.035s (d = 0.77 ± 0.39; p = 0.003). Visual exposure decreased Area of Sway relative to the combined (d = 0.38 ± 0.26; p = 0.020) and placebo interventions (d = 0.47 ± 0.42; p = 0.067), with no significant effect on cognition. Conclusion: Blue-enriched lighting demonstrates a novel approach to positively impact postural control and motor coordination in older adults. By impacting metrics associated with fall risk, light interventions may provide a clinical countermeasure to decrease the human costs of falls.

year: 2024-01-01

title: SEPSen: Semantic event processing at the sensor nodes for energy efficient wireless sensor networks

authors: Kasi, Mumraiz Khan

subjects: semanitcs

abstract: Traditionally in WSNs, the sensor nodes are used only for capturing data that is then later analyzed in the more powerful gateway nodes. This requires a continuous communication that wastes energy at the sensor nodes and greatly reduces the overall network lifetime. We propose a semantic-based in-network data processing that reduces energy consumption and improves the scalability of heterogeneous sensor networks. Ontology fragments in each sensor node help identify the data routed through the sensor network. We have adapted a matching algorithm to process a changing knowledge base. Simulation results show that the networks' energy consumption is considerably reduced.

text: SEPSen: Semantic event processing at the sensor nodes for energy efficient wireless sensor networks Traditionally in WSNs, the sensor nodes are used only for capturing data that is then later analyzed in the more powerful gateway nodes. This requires a continuous communication that wastes energy at the sensor nodes and greatly reduces the overall network lifetime. We propose a semantic-based in-network data processing that reduces energy consumption and improves the scalability of heterogeneous sensor networks. Ontology fragments in each sensor node help identify the data routed through the sensor network. We have adapted a matching algorithm to process a changing knowledge base. Simulation results show that the networks' energy consumption is considerably reduced.

year: 2012

title: Te kawa whakauru ora: Transformative pathways to flourishing whānau

authors: Raharuhi, Te Urukeiha

subjects: flourishing whānau

abstract: Flourishing is more than a combination of wellbeing factors or the absence of disease. It is a state of vitality, optimism and potential. We flourish when we feel positive about our ability to make choices to improve our lives. We flourish when we have opportunities to make valuable contributions to those we care most about, in ways that are meaningful to us. 

There is a wealth of research about whānau wellbeing. However, it is difficult to discern how it directly benefits whānau. Furthermore, deficit approaches to whānau wellbeing research publicise negative stereotypes that are alienating for Māori and detrimental to our flourishing. Te Kawa Whakauru Ora explores a process of identifying transformative pathways to flourishing whānau. It is not a generic approach that represents whānau as homogenous. Nor does it equate whānau with household or nuclear family. This research inquiry into flourishing whānau occurs within the scope of whakapapa and explores diversity within my whānau. 

This research inquiry compares whānau participation in individual wellbeing activities with participation in whānau events. Whānau events are identified by whānau as the only occasions where we experience whakapapa, whanaungatanga and aspects of flourishing that are unique to our collective wellbeing. The research inquiry then focuses on trialling a process of identifying pathways to flourishing whānau through participation in whānau events. When we participate in whānau events, we simultaneously access many aspects of flourishing to varying degrees. Te reo Māori and Māori concepts that are accessible to all whānau regardless of our level of proficiency, are tools to raise our awareness about these. When coupled with an existing research framework, a process for time series analysis of flourishing whānau is created, allowing us to document and compare the contexts of flourishing experienced at different events. 

The trial process of identifying transformative pathways to flourishing whānau is described in detail throughout this thesis to engage with whānau wanting to document the contexts within which they access flourishing. The research process recognises that the potential for pathways to be transformative increases when these are identified by each whānau. This thesis is thus different from existing research about whānau wellbeing because it demonstrates and strengthens whānau research capability.

text: Te kawa whakauru ora: Transformative pathways to flourishing whānau Flourishing is more than a combination of wellbeing factors or the absence of disease. It is a state of vitality, optimism and potential. We flourish when we feel positive about our ability to make choices to improve our lives. We flourish when we have opportunities to make valuable contributions to those we care most about, in ways that are meaningful to us. 

There is a wealth of research about whānau wellbeing. However, it is difficult to discern how it directly benefits whānau. Furthermore, deficit approaches to whānau wellbeing research publicise negative stereotypes that are alienating for Māori and detrimental to our flourishing. Te Kawa Whakauru Ora explores a process of identifying transformative pathways to flourishing whānau. It is not a generic approach that represents whānau as homogenous. Nor does it equate whānau with household or nuclear family. This research inquiry into flourishing whānau occurs within the scope of whakapapa and explores diversity within my whānau. 

This research inquiry compares whānau participation in individual wellbeing activities with participation in whānau events. Whānau events are identified by whānau as the only occasions where we experience whakapapa, whanaungatanga and aspects of flourishing that are unique to our collective wellbeing. The research inquiry then focuses on trialling a process of identifying pathways to flourishing whānau through participation in whānau events. When we participate in whānau events, we simultaneously access many aspects of flourishing to varying degrees. Te reo Māori and Māori concepts that are accessible to all whānau regardless of our level of proficiency, are tools to raise our awareness about these. When coupled with an existing research framework, a process for time series analysis of flourishing whānau is created, allowing us to document and compare the contexts of flourishing experienced at different events. 

The trial process of identifying transformative pathways to flourishing whānau is described in detail throughout this thesis to engage with whānau wanting to document the contexts within which they access flourishing. The research process recognises that the potential for pathways to be transformative increases when these are identified by each whānau. This thesis is thus different from existing research about whānau wellbeing because it demonstrates and strengthens whānau research capability.

year: 2025