Nesse artigo teve-se como objetivo apresentar estratégias e meios de criação jogos por meio do App (aplicativo) QR Code, para atender às necessidades específicas alunos matriculados no Atendimento Especializado uma escola pública na cidade São Luís - MA. Trata-se pesquisa qualitativa caráter exploratório, realizada com 62 estudantes ensino fundamental menor. Os resultados revelaram que a digita...

Mobile learning highly prioritizes the successful acquisition of context-aware contents from a learning server. A variant of 2D barcodes, the quick response (QR) code, which can be rapidly read using a PDA equipped with a camera and QR code reading software, is considered promising for context-aware applications. This work presents a novel QR code and handheld augmented reality (AR) supported m...

The paper presents a technique of interrogation, in mobile technology, of a knowledge base contained in an e-Learning platform. The query is done through the integrated use of an adaptive search engine (ASE) and QR codes. The QR-Code are used to label objects in real environments of cultural matter (eg: museums, art galleries, archaeological sites, etc.). These objects can then be analyzed in m...

Quick response codes – 2D patterns that can be scanned to access online resources – are being used in a variety of industrial and consumer applications. However, it is problematic to use multiple QR codes in close proximity: scans can fail or result in access to the wrong resource. While this problem is, strictly speaking, due to the design of the scanning software, the very large number of ext...

The leverage scores of a full-column rank matrix A are the squared row norms of any orthonormal basis for range (A). We show that corresponding leverage scores of two matrices A and A + ΔA are close in the relative sense if they have large magnitude and if all principal angles between the column spaces of A and A+ΔA are small. We also show three classes of bounds that are based on perturbation ...