Browsing by Author "Ponce, Daniel"

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    An observational study of teachers' and students' behaviors in synchronous online classrooms
    (2024) Gonzalez, Carlos; Ponce, Daniel
    PurposeThis paper aims first to describe the most prevalent teachers' and students' behaviors in synchronous online classes in emergency remote teaching; second, to discern behavior profiles and third, to investigate what features explain the observed behaviors.Design/methodology/approachAn adapted COPUS observation protocol was employed to observe 292 online classes from 146 higher education teachers.FindingsThe most prevalent behaviors were: Presenting for teachers and Receiving for students, followed by Teachers Guiding and Students Talking to Class. Furthermore, cluster analysis showed two groups: Traditional and Interactive. The variables that better explained belonging to the Interactive lecture group were disciplinary area - social sciences and humanities -and teaching in technical institutions.Practical implicationsIn a context where higher education institutions intend to project the lessons learned into post-pandemic learning experiences, this study provides observational evidence to realize the full potential expected from online and blended teaching and learning.Originality/valueDespite the prevalence of synchronous online lectures during COVID-19, there is a paucity of observational studies on the actual behaviors that occurred in this context. Most research has been based on surveys and interviews. This study addresses this gap.
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    Effect of Subcutaneous Lidocaine Infiltration on Blood Loss Secondary to Corporal Lipoaspiration: A Prospective, Randomized, Double-Masked Clinical Trial
    (2009) Llanos, Sergio; Dagnino, Bruno; Ponce, Daniel; Bonacic, Sebastian; Navarrete, Lindaura; Navarrete, Sandra; Mangelsdorff, Guenther; Searle, Susana; Mendez, Ignacio
    Lipoaspiration is one of the most frequently performed aesthetic surgical procedures worldwide. The use of tumescent solution containing lidocaine to infiltrate subcutaneous fat before surgery has been accepted as the standard of care for these procedures. Its objective is to diminish postoperative analgesic necessities and secondary blood loss, but its role in hematocrit reduction is not clear at this time. This study aimed to measure the effect of subcutaneous lidocaine infiltration on blood loss secondary to corporal liposuction.
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    Teachers' experiences of teaching online during COVID-19: implications for postpandemic professional development
    (2023) Gonzalez, Carlos; Ponce, Daniel; Fernandez, Violeta
    As a result of the Great Online Transition (GOT) that occurred during COVID-19, it is increasingly necessary to understand the digital competencies that are required for online and blended learning in the postpandemic era. Postquarantine, higher education institutions must return to on-campus face-to-face learning, a situation which raises questions concerning how to retain the lessons learned from this period of the forced acquisition and innovation of online teaching competencies. In this article, we present the results of an interview-based study of teachers' experiences of online teaching during the pandemic. One hundred fifty-one teachers were interviewed over a period of 2 years during the pandemic. We conducted a hybrid thematic analysis to systematize teachers' experiences. Our results show that despite the problems faced due to the disruption caused by the pandemic, several lessons were learned: teachers employed an array of digital tools to maintain content delivery and promote interaction, deepened their understanding of course design and assessment, and developed an empathic disposition to understand students' situations. We build upon these experiences to generate recommendations for developing digital competencies following the GOT.