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Nowadays, the use of technology to improve teaching and learning experiences in the classroom has been promoted. One of these technologies is augmented reality, which allows overlaying layers of virtual information on real scene with the aim of increasing the perception that user has of reality. Augmented reality has proved to offer several advantages in the educational context, i.e. increasing learning engagement and increasing understanding of some topics, especially when spatial skills are involved. Contents deployed in an augmented reality application are of two types, static, i.e. text, or dynamic, i.e. animations. As far as we know no research project has assessed how the type of content, static or dynamic, can affect the student learning perception and performance in augmented reality applications. In this article the development and evaluation of an augmented reality application using static and dynamic content is described. In order to determine how the type of content affects the learning perception and performance of the student, two experimental designs in which the student interact with the application, using static and dynamic contents, for learning topics related with an electronic fundamentals course was performed.

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Background: There is a lack of epidemiological data around heart failure (HF) in Latin America; the potential impact description of this disease in middle-income countries is relevant.Objective: This study aimed to describe the characteristics and healthcare resource utilization patterns of HF patients at baseline and six-month follow-up. Methods:This retrospective observational study used data from the RECOLFACA (Registro Colombiano de Falla Cardíaca) registry, which includes data obtained from the examination of clinical records from 2,528 patients in 60 Colombian healthcare institutions. Baseline and six-month follow-up data were evaluated from patients with previous hospital admissions due to HF during the 12 months prior to enrollment.Results: This study analyzed 2,045 patients (42.8% female) with a mean age of 67.71 ± 13.64 years. The most common etiologies were ischemic (44.4%) and hypertensive heart disease (38.5%). At baseline, 53.4% of patients were classified with NYHA class II, and 73.6% had a reduced left ventricle ejection fraction (LVEF). A year prior to entering the registry, patients were hospitalized an average of 1.4 ± 1.1 times due to HF. Prescription of evidence-based treatment at baseline included sacubitril/valsartan (10%), ACEI (33%), ARB (41%), beta-blocker (79%), diuretics (68%), and MRA (56%). The average quality of life score measured using the EQ-5D-3L questionnaire was 78.7 ± 20.8 at baseline and 82.3 ± 20.1 at the six-month follow-up. The mortality rate was 6.7%. Conclusions:The use of information from the RECOLFACA registry allowed characterization as well as analyses of healthcare resource utilization of patients with heart failure in Colombia. The results of this study show that multiple evidence-based treatments for HF are being widely used in Colombia, but there seems to be room for improvement regarding some interventions for the treatment of patients with HF. 2 Gomez-Mesa et al.