Browsing by Author "Guerra, Paula"
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- ItemAn exploratory study of Chilean early childhood teachers' professional learning communities(2024) Guerra, Paula; Figueroa-Cespedes, Ignacio; Zamora, Pablo; Gonzalez, Maria PazResearchshows that Professional Learning Communities (PLCs) foster teachers'professional learning. However, there is little knowledge about theirimplementation among early childhood (EC) teachers in Chilean andLatin American contexts. This article seeks to characterize two PLCscomposed of EC teachers and to analyse, from the participants'perspectives, the experience as a professional learning process. Froma qualitative perspective, a multiple case study was developed. 27 ECteachers participated, 12 from PLC 1 and 15 from PLC 2. Datacollection included nonparticipant observations, interviews and focusgroups. Data were analysed by an open coding process based ongrounded theory. The results show that each PLC highlighted differentaspects related to pedagogical practice, self-care practice, trustand close relationships, and institutional validation. From theteachers' perspective, PLCs contribute to professional learning, interms of fostering complex and critical reflective practice, andcollaborative conceptual learning that promotes not only knowledgeacquisition and construction but is also empowering for teachers.Practical and investigative implications are discussed.
- ItemEvaluation of surface water quality in basins of the Chilean Altiplano-Puna and implications for water treatment and monitoring(2022) Lizama-Allende, Katherine; Ramila, Consuelo d P.; Leiva, Eduardo; Guerra, Paula; Ayala, JoseWater quality characterization and assessment are key to protecting human health and ecosystems, especially in arid areas such as northern Chile, where water resources are scarce and rich in pollutants. The objective of this study was to review and assess available official water quality data in the Chilean Altiplano-Puna basins for a 10-year period (2008-2018), including water treatment systems. Within the 43,600 km(2) of Chilean Altiplano-Puna territory, only 16 official water quality monitoring stations had up-to-date data, and the sampling frequency was less than 3 per year. Most of the water samples collected at the evaluated stations exceeded the drinking and irrigation water Chilean standards for arsenic, boron, and electrical conductivity. Moreover, the characteristics of the Altiplano-Puna affect water quality inside and beyond the area, limiting water usage throughout the Altiplano-Puna basins. Drinking water treatment plants exist in urban and rural settlements; however, the drinking water supply in rural locations is limited due to the lack of adequate treatment and continuity of service. Wastewater treatment plants operate in some urban locations but rarely exist in rural locations. Limited data impede the proper assessment of water quality and thus the evaluation of the need for treatment systems. As such, the implementation of public policies that prioritize water with appropriate quantity and quality for local communities and ecosystems is imperative.
- ItemResponse of suspended sediment particle size distributions to changes in water chemistry at an Andean mountain stream confluence receiving arsenic rich acid drainage(2017) Abarca, María; Guerra, Paula; Arce, Guillermo; Montecinos, Mauricio; Escauriaza Mesa, Cristián Rodrigo; Coquery, Marina; Pastén González, Pablo Arturo; CEDEUS (Chile)
- ItemWater Quality(Springer, 2021) Pasten Gonzalez, Pablo Arturo; Vega, Alejandra; Lizama, Katherine; Guerra, Paula; Pizarro , Jaime; Fernández, B.; Gironás, J.