Street food vending in urban areas of developing countries like Botswana continues to be a source of livelihoods to many (Joseph, 2011).The Government and relevant stakeholders need to understand holistically the challenges faced by street food vendors and develop interventions that will enable street food vendors to survive, grow and compete in a dynamic business environment. This study examin...

Walk-up-and-use-systems such as vending and self-service machines request special attention concerning an easy to use and self-explanatory user interface. In this paper we present a set of design guidelines for coffee vending machines based on the results of an expert-based usability evaluation of thirteen different models.

In this paper, we propose an autonomous vending machine that is governed by a public Blockchain and smart contracts platform. Set up as decentralized organization, it serves open marketplace for physical goods, where anyone can buy and/or sell objects. We basic architecture the machine, analyze pricing fee mechanisms examine potential pitfalls. Moreover, discuss issues, possible extensions fur...

BACKGROUND Vending machines account for food sales and revenue in schools. We examined 3 strategies for promoting the sale of lower-calorie food products from vending machines in high schools in the Netherlands. METHODS A school-based randomized controlled trial was conducted in 13 experimental schools and 15 control schools. Three strategies were tested within each experimental school: incre...

Psychomotor skills provide a capability to learners to perform a task with reasonable competence. Various levels of competencies in psychomotor skills are Imitation / Observation, Manipulation, Precision /Competent, Articulation / consolidation and Naturalization & Mastery. In Engineering education psychomotor skills form a very important set of skills that need to be acquired by the students t...

Whereas the majority of evaluations self-service kiosks are based on interviews or observations and as such burdened with personal bias, eye tracking was seen a method for an objective analysis. To demonstrate feasibility usability assessment technique, task purchasing public transportation ticket from modern vending machine in Kraków, Poland evaluated. The test participants relatively easily o...

BACKGROUND People with mental illness often experience unique barriers to healthy eating and physical activity. For these clients, interventions should focus on changes in the immediate environment to change behaviors. The purpose of this project was to implement and evaluate policy changes that would limit calorie intake and increase calorie expenditure of clients receiving mental health servi...