This app supports viewing and searching data from the MassAITC research paper knowledge base. The knowledge base currently focuses on the validation of devices for assessing physical activity. The knowledge base contains basic bibilographic information for papers, as well as citation data from OpenAlex.org. Most papers have additional details available that can be displayed by clicking the [More] link after the paper listing. These details include the paper topic area (from OpenAlex) and information about the studies contained the paper including the study setting, sample size, tasks, performance measures and devices used. Links are provided to more detailed paper records including DOI's, OpenAlex, Mendeley, PubMed and PubMed Central. The Search box can be used to search all data fields.