Recent international documents and educational standards have recommended Science Education be based on three dimensions (Scientific Practices, Crosscutting Concepts, and Disciplinary Core Ideas). This has resulted in an increased interest in research involving Scientific Practices in Science Education. The objectives of this article are to: I)…

Contribution: A didactic methodology, based on analytical expressions and experimental validation, to describe the process of abrupt current interruption in a series RL circuit, that considers real passive components and uses a toggle switch as disconnecting device. Background: In undergraduate courses, circuits adopted in transient analysis…

Vowel nasality is the most controversial phonological aspect of Brazilian Portuguese. Scholars suggest the oral-nasal vowel distinction may not exist. A consonant-like nasal resonance presence at the vowel's right edge (the nasal appendix) might make nasal vowels the product of a contextual vowel nasalization rule. Others suggest that the appendix…

Learning Object (LO) is one of the main research topics in the e-learning community in the recent years. In this context, granularity is a key factor for LO reuse. This paper presents a methodology to define the learning objects granularity in the computing area as well as a case study in software testing. We carried out five experiments to…

Use of mobile devices and widespread adoption of wireless networks have enabled the emergence of Ubiquitous Computing. Application of this technology to improving education strategies gave rise to Ubiquitous e-Learning, also known as Ubiquitous Learning. There are several approaches to organizing ubiquitous learning environments, but most of them…

The methodology used in this study was action-research and the considered activity is been applied successfully for at least five years to undergraduate and to master classes for Industrial Engineering students in Brazil. It showed a significant result in both cases, providing the basis for the deepening in the subject in further lessons.…

Animal experimentation is a controversial topic, especially among the general public and the scientific community. Thirty-eight undergraduate students attending the College of Veterinary Medicine--São Paulo State University in the municipality of Araçatuba, São Paulo, Brazil, were followed up between 2008 and 2011 and were asked to complete an…

Humans are born with the natural ability to gain skills through play. Children learn about social norms, roles and responsibilities, and language through curiosity-driven, playful interactions and activities. Learning through play harnesses the power of children's imagination and inspires active engagement with the material. The Center for…

Variation in baseline controlling relations is suggested as one of the factors determining variability in stimulus equivalence outcomes. This study used single- comparison trials attempting to control such controlling relations. Four children learned AB, BC, and CD conditional discriminations, with 2 samples and 2 comparison stimuli. In Condition…

Multidisciplinary cooperation in health care requires a solid knowledge in the basic sciences for a common ground of communication. In speech pathology, these fundamentals improve the accuracy of descriptive diagnoses and support the development of new therapeutic techniques and strategies. The aim of this study is to briefly discuss the benefits…

The cause-effect relationship between lactic acid, acidosis, and muscle fatigue has been established in the literature. However, current experiments contradict this premise. Here, we describe an experiment developed by first-year university students planned to answer the following questions: 1) Which metabolic pathways of energy metabolism are…

The objective of this study was to identify the methodological approaches employed in a sample of Brazilian distance education scientific literature and compare with similar publications in the United States. Brazilian sample articles (N = 983) published in several journals and meetings were compared with a sample of articles published in…

Natural computing is a terminology used to describe computational algorithms developed by taking inspiration from information processing mechanisms in nature, methods to synthesize natural phenomena in computers, and novel computational approaches based on natural materials. The virtual laboratory on natural computing (LVCoN) is a Web environment…

Visual angles are defined as the angle between line of sight up to the mean point of a relative distance and the relative distance itself. In one experiment, we examined the functional aspect of visual angle in relative distance perception using two different layouts composed by 14 stakes, one of them with its center 23 m away from the observation…

In two experiments we investigated the automatic adjusting of the attentional focus to simple geometric shapes. The participants performed a visual search task with four stimuli (the target and three distractors) presented always around the fixation point, inside an outlined frame not related to the search task. A cue informed the subject only…