This review is a systematic literature review (SLR) with the aim of advancing the state of the art in Phonological Awareness in preschoolers (4–6 years) by means of Information and Communication Technologies (ICT). The SLR provides an important guide to newcomers to this domain and researchers who seek a structured body of knowledge in the subject for gaining new, important insights. Searches were carried out in the indexed database Scopus© between June and July 2020. Among the inclusion and exclusion criteria were studies reported in English, Spanish and Portuguese, updated electronic documents from the last ten years and studies cited by others at least once, except for those with publication acknowledgement after 2017. To complete the task, a triangulation assessment was made among three researchers using the same tool developed in Microsoft Excel^©, in which the search terms, the search strings, inclusion and exclusion criteria and the study collection process were systematized along with a word cloud of keywords to improve the systematic feature of the SLR. Fifty-nine (59) scientific articles were selected and from those, 24 articles met the experts’ criteria. The method included: (1) search and selection of terms; (2) inclusion and exclusion criteria; (3) the searching process; and (4) reporting study collection. The SLR synthesis reported in this paper is a novel contribution built on two conceptual categories: Computer assisted learning systems (CAL) and Computer assisted instruction systems (CAI) which frame works on Phonological Awareness processes with Preschoolers and provide an appraisal of the results to advance knowledge of systematic reviews of preschoolers’ phonological awareness strictly supported by ICT.

The development of the logistics sector among the last decades has allowed the growth of organisational competitive advantages through the concept of reverse logistics (RL). As part of the supply chain management, this concept allows the efficient and effective management of product recycling once their life cycle is finished. Although the practice of RL is part of a sustainable strategy for the management of the supply chain, there is no much literature about its practice in Colombia. In this context, this paper is a first research approach of RL practices in Colombian enterprises, with a particular focus on the plastic sector. After a first analysis of the definitions of RL, some conceptual models are presented for the companies under study. This paper then analyses the results of an exploratory study of RL practices within the Colombian plastic sector. Results of this study are discussed and suggestions to decrease a negative impact on the environment are presented.

This paper presents sustainable requirements and a value proposition associated with the composition of the package of milk UHT (Ultra-high temperature). The coextruded film used for UHT milk packaging is not easily recyclable and the final product of its separation or recycling attempt has no favourable characteristics for any other subsequent industrial process, which leads to discarding. In response to the sustainable requirements of disintegration, biodegradation and compostability, new materials are investigated searching for what they promise according to different environmental standards. Sustainable requirements and properties are still being researched with new materials. This research has contributed with the analyses of these requirements and offered three materials’ compositions to the creation of new plastics with a biodegradable look: PVOH, PLA and Cellulose. Current environmental improvements are difficult to achieve and maintain if sustainable packages are not preferred by customers, so it is necessary to review the value propositions offered so far to ensure the continuity of the process.

This article presents a quantitative approach of a systematic literature review, namely a meta-analysis, using 19 technology-based phonological awareness interventions carried out over the last decade, aiming at technology-mediated reading acquisition and focusing specifically on the capabilities of phonological awareness. The study showed consistent positive effects when compared with non-technological intervention programmes in preschoolers. The selected interventions fall into quasi-experimental designs with post-intervention measurements, and experimental and control groups. Aspects related to the participants, intervention or programme, methodology, and external factors to the research itself were coded and controlled. Associations found for the moderating variables were the type of technology used, the age of the participant, and the duration of the programme. We conclude by recognising the usefulness of a meta-analysis as an appropriate method that is capable of distinguishing among the various studies on the presence of effective factors in the development of phonological awareness instruction.