Abstract

The Web of Science interface counts at most 100,000 retrieved items from a single query. If the query results in a dataset containing more than 100,000 items the number of retrieved items is indicated as >100,000. The problem studied here is how to find the exact number of items in a query that leads to more than 100,000 items. One way to achieve this objective is presented. The retrieval of the entire scientific production from the United States in a specific year (2007) is counted and an advanced search strategy is designed. Different sections of items can be retrieved using the Source field of the database. A Boolean statement was created with the aim of eliminating overlapped sections and improving the accuracy of this search strategy.

Abstract

Augmented reality (AR) immersion enables virtual objects and real environments to coexist and encourage experimentation with phenomena that are not possible in the real world. Augmented reality is generating new opportunities for the development of ubiquity within educational environments. The objective of this study was to analyze the impact that the integration of ubiquitous game approaches with augmented reality has on learning. A quasi-experimental study was carried out with 91 sixth-grade primary school students; the learning scenario was designed and the augmented reality application “WallaMe” was selected for use in five sessions of a didactic unit in Art Education. Through pretest and posttest procedures, academic performance and information search skills were evaluated, and, a Likert scale analyzed the motivation and collaboration variables among the students. The results showed that the experimental group obtained statistically significant improvements in the academic performance of the subject, motivation, in the search for, and analysis of, information, level of fun and collaboration. The conclusion is that the dynamic activities managed in the intervention, which made use of augmented reality and localization, benefit teaching-learning processes, and encourage innovation and improvement through educational technology.