A Stress-Free Life: Just-in-Time Interventions for Stress via Real-Time Forecasting and Intervention Adaptation

Author(s):  
Luis Jaimes ◽  
Martin Llofriu ◽  
Andrew Raij
2021 ◽  
Author(s):  
Jacqueline Louise Mair ◽  
Lawrence Hayes ◽  
Amy Campbell ◽  
Duncan Buchan ◽  
Chris Easton ◽  
...  

BACKGROUND Just-in-time-adaptive-interventions (JITAIs) provide real-time ‘in the moment’ behaviour change support to people when they need it most. JITAIs could be a viable way to provide personalised physical activity support to older adults in the community. However, it is unclear how feasible it is to remotely deliver a physical activity intervention via a smartphone to older adults, or how acceptable older adults would find a JITAI targeting physical activity in everyday life. OBJECTIVE (1) to describe the development of “JITABug”, a personalised smartphone and activity tracker delivered JITAI designed to support older adults to increase or maintain their physical activity level; (2) to explore the acceptability of JITABug in a free-living setting, and (3) to assess the feasibility of conducting an effectiveness trial of the JITABug intervention. METHODS The intervention development process was underpinned by the Behaviour Change Wheel. The intervention consisted of a wearable activity tracker (Fitbit) and a companion smartphone app (JITABug) which delivered goal setting, planning, reminders, and just-in-time adaptive messages to encourage achievement of personalised physical activity goals. Message delivery was tailored based on time of day, real-time physical activity tracker data, and weather conditions. We tested the feasibility of remotely delivering the JITAI with older adults in a 6-week trial using a mixed-methods approach. Data collection involved assessment of physical activity by accelerometery and activity tracker, self-reported mood and mental wellbeing via ecological momentary assessment, and contextual information on physical activity via voice memos. Feasibility and acceptability outcomes included: (1) recruitment capability and adherence to the intervention; (2) intervention delivery ‘in the wild’; (3) appropriateness of data collection methodology; (4) adverse events and; (5) participant satisfaction. RESULTS Of 46 recruited older adults (aged 56-72 years old), 65% completed the intervention. The intervention was successfully delivered as intended; 27 participants completed the intervention independently, 94% of physical activity messages were successfully delivered, and 99% of Fitbit and 100% of weather data calls were successful. Wrist-worn accelerometer data were obtained from 96% at baseline and 96% at follow up. On average, participants recorded 8/16 (50%) voice memos, 3/8 (38%) mood assessments, and 2/4 (50%) wellbeing assessments via the app. Overall acceptability of the intervention was very good (77% satisfaction). Participant feedback suggested that more diverse and tailored physical activity messages, app usage reminders, technical refinements regarding real-time data syncing, and an improved user interface could improve the intervention and make it more appealing. CONCLUSIONS This study suggests that a smartphone delivered JITAI utilizing a wearable activity tracker is an acceptable way to support physical activity in older adults in the community. Overall, the intervention is feasible, however based on user feedback, the JITABug app requires further technical refinements that may enhance usage, engagement, and user satisfaction before moving to effectiveness trials. CLINICALTRIAL Non-Applicable


1988 ◽  
Vol 4 (03) ◽  
pp. 197-215
Author(s):  
Richard L. DeVries

The use of computers to improve the productivity of U.S. shipyards has never been as successful as hoped for by the designers. Many applications were simply the conversion of an existing process to a computerized process. The manufacturing database required for the successful application of computer-aided process planning (CAPP) to the shipyard environment requires a "back-to-basics" approach, one that can lead to control of the processes occurring in the fabrication and assembly shops of a shipyard. The manufacturing database will not provide management feedback designed for the financial segment of the shipyard (although it can be converted to be fully applicable): it provides "real-time" manufacturing data that the shop floor manager can utilize in his day-to-day decisions, not historical data on how his shop did last week or last month. The computer is only a tool to be used to organize the mountains of manufacturing data into useful information for today's shop manager on a "real time" basis. The use of group technology to collect similar products, the use of parameters to clearly identify work content, the use of real-time efficiency rates to project capacity and realistic schedules, and the use of bar codes to input "real time" data are all tools that are part of the process—tools for the shop floor manager of tomorrow.


2017 ◽  
Vol 9 (1-2) ◽  
pp. 28 ◽  
Author(s):  
Mehmet ŞİMŞEK ◽  
Nurettin Doğan ◽  
Muhammet Ali Akcayol

Delivering the real-time services over converged networks is a big challenge. Real-time services need to high Quality of Service (QoS). For this purpose, bandwidth reservation and packet prioritization techniques are used. Thus, real-time data packets can be reached to their targets with minimum delays and losses.  But, this situation creates unintended consequences for other internet services such as HTTP and FTP. In this case, establishing a balance between the real-time services and the other services is a must. In this study we introduce a new research question: how to transport real-time multimedia IP packets just in time? Just in time means that transportation of the packets neither early, nor late. For this purpose we developed a scheduling/prioritizing algorithm called just in time transport (JITT). Following a cross-layer design approach, JITT controls delay and jitter over whole communication path. We evaluated JITT on the different simulations and one experimental testbed for performance analysis. Our findings support that JITT provides stable delay and low jitter and transports the packets nearly just in time.


2010 ◽  
Vol 19 (2) ◽  
pp. 151-171 ◽  
Author(s):  
Emily Troscianko

We read in a linear fashion, page by page, and we seem also to experience the world around us thus, moment by moment. But research on visual perception shows that perceptual experience is not pictorially representational: it does not consist in a linear, cumulative, totalizing process of building up a stream of internal picture-like representations. Current enactive, or sensorimotor, theories describe vision and imagination as operating through interactive potentiality. Kafka’s texts, which evoke perception as non-pictorial, provide scope for investigating the close links between vision and imagination in the context of the reading of fiction. Kafka taps into the fundamental perceptual processes by which we experience external and imagined worlds, by evoking fictional worlds through the characters’ perceptual enaction of them. The temporality of Kafka’s narratives draws us in by making concessions to how we habitually create ‘proper’, linear narratives out of experience, as reflected in traditional Realist narratives. However, Kafka also unsettles these processes of narrativization, showing their inadequacies and superfluities. Kafka’s works engage the reader’s imagination so powerfully because they correspond to the truth of perceptual experience, rather than merely to the fictions we conventionally make of it. Yet these texts also unsettle because we are unused to thinking of the real world as being just how these truly realistic, Kafkaesque worlds are: inadmissible of a complete, linear narrative, because always emerging when looked for, just in time.


2010 ◽  
Vol 41 (2) ◽  
pp. 1-12 ◽  
Author(s):  
P. D. Steyn ◽  
A. S.A. Du Toit

There have been numerous approaches to knowledge management over the past number of years. The term Just-in-Time (JIT) can be defined as a production or inventory scheduling technique found within the more complex production logistics disciplines. JIT is more appropriately thought of as a philosophy, as it is more than a mere set of management and production principles. JIT knowledge management is an endeavour to provide the right knowledge at the right time to the right person. This requires insight into the knowledge demand and supply process as well as the time horizon applicable to the knowledge required. Over the longer term business forecasts, environmental scans and strategic planning can be applied to close the gap between these variables. However, it is in the short term and in the satisfaction of immediate requirements that the present systems fail and management concerns are emphasised. JIT knowledge management seeks an optimisation of the matching process between demand and supply of knowledge within enterprises, i.e. it endeavours to translate the logistic concept of JIT to the knowledge management field. In addition to JIT knowledge management the concept of real-time knowledge management is introduced as an alternative, since present research indicates that the implementation of JIT knowledge management presents major challenges in terms of cost and development effort, restricting its use to mission critical applications. A more generic application of JIT knowledge management needs to be developed and it is contended that real-time knowledge management fits the requirements of enabling the enterprise to be agile in respect of its ability to respond to knowledge demands and to be sensitive to future knowledge requirements.


Author(s):  
Adiba Abidin ◽  
◽  
Divya Lal ◽  
Sunil Kumar Chowdhary ◽  
◽  
...  

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