Lip control system is an innovative human-computer interface specially designed for people with tetraplegia. This paper presents an evaluation of the lower lip potential to control an input device, according to Fitts' law (ISO/TS 9241-411:2012 standard). The results show that the lower lip throughput is comparable with the thumb throughput using the same input device under the same conditions. These results establish the baseline for future research studies about the lower lip capacity to operate a computer input device.

No abstract

BACKGROUND EasySeating is a mobile health (mHealth) app that supports the prescription of wheelchair and postural support devices (WPSD). It can be used by occupational therapists (OT) and physiotherapists (PT) who prescribe these devices. The app offers a framework for the prescription procedures, showing images, metrics and details that can guide the prescriber to decide the best equipment for wheelchair users. OBJECTIVE to present the development and usability of the EasySeating app. METHODS This study was divided into three stages and was carried out as an iterative process with eighty eight participants (n=88) that provided information for the software development and its usability. In the Stage 1 data was gathered to develop the first prototype, followed by the Stage 2 where four prototypes were improved by the feedback from experts. Finally in the Stage 3 the usability was tested. Data collection was performed through semi-structured interviews, focus groups and heuristics evaluation. Data analysis was descriptive and qualitative. RESULTS In the Stage 1 was identified the lack of a uniform terminology used by practitioners; however this information was used to create the first prototype based on a range of postural devices reported. In the Stage 2, qualitative information was used to improve the app including images, more options of devices. In Stage 3, the usability test improved the app in the following aspects: smartness, increasing the dialog and feedback with the practitioner. CONCLUSIONS The three stages enable to define a uniform terminology; to identify and recommend a framework for prescription comprising rehabilitation practitioners, technicians and wheelchair users; to document a method to develop a mHealth that can have reproducibility by the international community interested in assistive technology assessment using technology, a new trend in an era of the fourth industrial revolution.

No abstract

Este trabalho apresenta uma visão geral sobre a programação quântica, de maneira acessível a alunos de graduação em Física. Inicia-se com um breve histórico sobre a computação quântica. São tratados os modelos que servem de base para a programação quântica, seguidos de descritivo resumido sobre as principais linguagens de programação quântica. Completando a apresentação, o funcionamento de um programa quântico é discutido, contextualizando-se a importância da programação, no âmbito da computação quântica.