Second language (L2) communication strategies (CSs) have traditionally been dealt with through either interactional or psychological perspectives. However, this paper is a critical attempt to question the status of the particular kinds of psycholinguistic and interactional approaches that currently dominate the field of second language acquisition (SLA). In this way, it expands the significance...

The problem of detection and discrimination of double talk and change in the echo path in a telephone channel is consid ered A change in echo path requires fast adaptation of the channel model to be able to equalize the echo dynamics On the other hand the adaption rate should be reduced when double talk occurs Thus it is critical to quickly detect a change in echo path while not confusing it wi...

Initial teacher education provides a strategic opportunity for ensuring that all teachers are ready and able to teach for sustainability when they begin their teaching careers. However, it is also widely recognised that this strategy has not been used to its full potential. Efforts in education for sustainable development (ESD) at this level have tended to engage with prospective teachers and t...

Acoustic echo cancellation is one of the oldest applications of the adaptive filters and today part of each speakerphone. An important block of each acoustic echo canceller is the double talk detector. It blocks the adaptation of the filter when near end voice is present and thus preventing the adaptive filter from diverging from the optimal position. In this paper we present an improved versio...

The purpose of this article is to build a model of interaction between the learner and the teacher, where the teacher performs the role of an Intelligent Tutoring System (ITS). If a teacher in the learning process is replaced with a computer system, it should be equipped with a system to adapt to the learner’s cognitive state. We studied factors that influence the learner’s perception of the in...

Over the last decade, traditional educational practices in teacher education have not provided prospective teachers with all the necessary skills for teaching students to acquire the skills to cope with the challenges of society in the 21 century. For this reason, there is a worldwide trend toward producing teachers with high teaching competency. To promote competency in using technologies to t...

the aim of the present study was to investigate and compare the effects of twokinds of motivational and instructional self–talk on the performance of static anddynamic balance tasks in the elderly. for this purpose, 45 old subjects agedbetween 60 and 70 from qom province participated in this study. static balancetask (stand on one leg) and dynamic balance task (sebt test) were instructed withno...

The teacher-student (T/S) learning has been shown effective in unsupervised domain adaptation [1]. It is a form of transfer learning, not in terms of the transfer of recognition decisions, but the knowledge of posteriori probabilities in the source domain as evaluated by the teacher model. It learns to handle the speaker and environment variability inherent in and restricted to the speech signa...

Fostering adaptations that are congruent with designers’ original intentions is a constant challenge. In this paper, we explore a technology-facilitated means of scaffolding teacher adaptation of curriculum materials design. We found that teachers are able to inspect multiple aspects of connections within and between lessons and the consequences of their modifications. This study informs the de...

This research seeks to analyse and propose a solution to support classroom-based teaching in the Department of Chocó, Colombia, which is located in a rural area and has been the subject of many social projects for the development of its people. Due to the disparities in different regions of the country, the education sector is forced to look for new working environments that are suitable for ru...