Background
Many older adults choose to live independently in their homes for as long as possible, despite psychosocial and medical conditions that compromise their independence in daily living and safety. Faced with unprecedented challenges in allocating resources, home care administrators are increasingly open to using monitoring technologies known as ambient assisted living (AAL) to better support care recipients. To be effective, these technologies should be able to report clinically relevant changes to support decision making at an individual level.
Objective
The aim of this study is to examine the concurrent validity of AAL monitoring reports and information gathered by care professionals using triangulation.
Methods
This longitudinal single-case study spans over 490 days of monitoring a 90-year-old woman with Alzheimer disease receiving support from local health care services. A clinical nurse in charge of her health and social care was interviewed 3 times during the project. Linear mixed models for repeated measures were used to analyze each daily activity (ie, sleep, outing activities, periods of low mobility, cooking-related activities, hygiene-related activities). Significant changes observed in data from monitoring reports were compared with information gathered by the care professional to explore concurrent validity.
Results
Over time, the monitoring reports showed evolving trends in the care recipient’s daily activities. Significant activity changes occurred over time regarding sleep, outings, cooking, mobility, and hygiene-related activities. Although the nurse observed some trends, the monitoring reports highlighted information that the nurse had not yet identified. Most trends detected in the monitoring reports were consistent with the clinical information gathered by the nurse. In addition, the AAL system detected changes in daily trends following an intervention specific to meal preparation.
Conclusions
Overall, trends identified by AAL monitoring are consistent with clinical reports. They help answer the nurse’s questions and help the nurse develop interventions to maintain the care recipient at home. These findings suggest the vast potential of AAL technologies to support health care services and aging in place by providing valid and clinically relevant information over time regarding activities of daily living. Such data are essential when other sources yield incomplete information for decision making.
Ambient Assisted Living (AAL) environments encompass technical systems and the Internet of Things (IoT) tools to support seniors in their daily routines. They aim to enable seniors to live independently and safely for as long as possible when faced declining physical or cognitive capacities. This work presents the design, development and deployment of an AAL system in the context of smart cities. The proposed architecture is based on microservices and software components. We examined the requirements and specifications of AAL systems in smart homes, in efforts to describe and evaluate how they would be transposable in the case of smart cities. The system has been tested and evaluated in the laboratory; it has been deployed in real life settings within city and is still in use by five elderly people.
This study examines newspaper writing from ten Caribbean countries as a window on the norm orientation of English in the region. English in the former British colonies of the Caribbean has been assumed to be especially prone to postcolonial linguistic Americanization, on account of not just recent global phenomena such as mass tourism and media exposure but also long-standing personal and sociocultural links. We present a quantitative investigation of variable features comparing our Caribbean results not just to American and British reference corpora but also to newspaper collections from India and Nigeria as representatives of non-Caribbean New Englishes. The amount of American features employed varies by type of feature and country. In all Caribbean corpora, they are more prevalent in the lexicon than in spelling. With regard to grammar, an orientation toward a singular norm cannot be deduced from the data. While Caribbean journalists do partake in worldwide American-led changes such as colloquialization, as evident in the occurrence of contractions or the tendency to prefer that over which, the frequencies with which they do so align neither with American English nor with British English but often resemble those found in the Indian and Nigerian corpora. Contemporary Caribbean newspaper writing, thus, neither follows traditional British norms, nor is it characterized by massive linguistic Americanization; rather, there appears to be a certain conservatism common to New Englishes generally. We discuss these results in light of new considerations on normativity in English in the 21st century.
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