Mobilise-D insights to estimate real-world walking speed in multiple conditions with a wearable device

This study aimed to validate a wearable device’s walking speed estimation pipeline, considering complexity, speed, and walking bout duration. The goal was to provide recommendations on the use of wearable devices for real-world mobility analysis. Participants with Parkinson’s Disease, Multiple Sclerosis, Proximal Femoral Fracture, Chronic Obstructive Pulmonary Disease, Congestive Heart Failure, and healthy older adults (n = 97) were monitored in the laboratory and the real-world (2.5 h), using a lower back wearable device. Two walking speed estimation pipelines were validated across 4408/1298 (2.5 h/laboratory) detected walking bouts, compared to 4620/1365 bouts detected by a multi-sensor reference system. In the laboratory, the mean absolute error (MAE) and mean relative error (MRE) for walking speed estimation ranged from 0.06 to 0.12 m/s and − 2.1 to 14.4%, with ICCs (Intraclass correlation coefficients) between good (0.79) and excellent (0.91). Real-world MAE ranged from 0.09 to 0.13, MARE from 1.3 to 22.7%, with ICCs indicating moderate (0.57) to good (0.88) agreement. Lower errors were observed for cohorts without major gait impairments, less complex tasks, and longer walking bouts. The analytical pipelines demonstrated moderate to good accuracy in estimating walking speed. Accuracy depended on confounding factors, emphasizing the need for robust technical validation before clinical application. Trial registration: ISRCTN – 12246987

A Scandinavian Relief Brooch: Artistic Vision and Practical Method Combined

This is an Accepted Manuscript of an article published by Taylor & Francis in Medieval Archaeology on December 20, 2018, available online: http://www.tandfonline.com/10.1080/00766097.2018.1535384.THIS PAPER considers the craftspeople that created ornamental metalwork, the contexts in which they operated, and the communication they had with their contemporaries. The study focuses on the Dalem brooch, a 6th-century Scandinavian relief brooch from Norway. By examining an object which expresses a complex symbolic language through intricate and demanding crafting processes, we emphasise the importance of considering both ornamentation and technology when studying these exquisite dress items. The brooch was manufactured from a variety of materials and decorated in Salin Style 1. This ornamentation, with its religious, political and social connotations, was completely integrated into the object from its conception. A combination of new and old designs indicates that the craftspeople purposefully created and transformed motifs for use on the brooch, operating within a creative, cross-disciplinary and intellectual centre of expertise.acceptedVersio

Sentralbanken i forandringens tegn : festskrift til Kjell Storvik

Dette skrift er resultatet av et sterkt ønske fra mange av Kjell Storviks nære medarbeidere om å hedre hans innsats for Norges Bank og for Norge. Artikkelsamlingen pretenderer ikke å dekke hele sentralbankens virksomhet, heller ikke alle store endringer og utfordringer som en har stått overfor. Siktemålet har vært å bringe frem og belyse et knippe problemstillinger som alle har vært sentrale for Norges Bank under Kjell Storviks tid i banken, og hvor han har utvist særlig interesse og engasjement og dermed bidratt til sakenes fremdrift og løsning. Artiklene er likevel holdt strengt tematiske, de søker å belyse problemstillingene, ikke enkeltpersonenes innsats