Evaluación del software GeoGebra como recurso de enseñanza en sistemas de ecuaciones

The rapid advance of technology requires that the educational system also develops to improve the quality of education, influencing the traditional functioning of this sector; This implies innovation and creativity of teachers in the implementation of learning by developing a technology-based and student-oriented learning system and facilitating the needs of students. Based on the information mentioned above, this article aims to provide a brief evaluation of GeoGebra Software as a teaching resource on systems of equations as an excellent tool to facilitate student learning. The methodology used for the development of this article is a systemic bibliographic review, which focuses on an evaluation of using GeoGebra in learning systems of equations, through the description of scientific articles from indexed journals published in the period 2017 - 2022 in databases. of appropriate data. The results of the bibliographical investigations analyzed in the present affirm that the use of GeoGebra for the teaching of systems of equations significantly improved the understanding, critical analysis, and learning of the students, as well as their enthusiasm, academic performance, and their grades.El rápido avance de la tecnología requiere que el sistema educativo también se desarrolle para mejorar la calidad de la educación, influyendo de gran manera el funcionamiento tradicional de este sector; esto implica la innovación y la creatividad de los docentes en la implementación del aprendizaje mediante el desarrollo de un sistema de aprendizaje basado en la tecnología y orientado al estudiante, y facilitando las necesidades de los estudiantes. Con base en la información mencionada anteriormente, este artículo tiene como objetivo proporcionar una breve evaluación del Software GeoGebra como recurso de enseñanza en sistemas de ecuaciones como una excelente herramienta para facilitar el aprendizaje de los estudiantes. La metodología utilizada para el desarrollo de este artículo es una revisión bibliográfica sistémica, que se centra en una evaluación de usar GeoGebra en el aprendizaje de sistemas de ecuaciones, mediante la descripción de artículos científicos de revistas indexadas publicadas en el periodo 2017 – 2022 en bases de datos apropiados. Los resultados de las investigaciones bibliográficas analizadas en el presente afirman que el uso de GeoGebra para la enseñanza de sistemas de ecuaciones mejora significativamente la comprensión, análisis crítico, y aprendizaje de los estudiantes, así como su entusiasmo, desempeño académico y sus calificaciones. &nbsp

Enfermedad de mayor incidencia en el departamento del Chocó

La Malaria constituye un problema para la salud pública en el país, ya que casi todo el territorio Colombiano está ubicado a menos de 1.600 metros sobre el nivel del mar, presenta condiciones climáticas, geográficas, culturales y epidemiológicas adecuadas para la transmisión de la enfermedad; el parásito que la provoca es Plasmodium, el cual es transmitido por mosquitos del género Anopheles, que se encuentra principalmente en zonas de clima cálido o tropical. El riesgo de transmisión se encuentra relacionado con factores socioeconómicos que han aumentado en los últimos años, como poblaciones desplazadas debido a conflictos armados, violencia, pobreza en zonas rurales, crecimiento desordenado de los núcleos urbanos, migraciones continuas, explotación de los bosques y la minería. La mayoría de las muertes ocurren en los infantes, especialmente en áreas rurales remotas de difícil acceso a asistencia médica y constituye un evento cuya vigilancia, prevención y control revisten especial interés en salud públicaMalaria is a problem for public health in the country, since almost the entire Colombian territory is located at less than 1,600 meters above sea level, it has adequate climatic, geographic, cultural and epidemiological conditions for the transmission of the disease; the parasite that causes it is Plasmodium, which is transmitted by mosquitoes of the genus Anopheles, which is found mainly in areas of warm or tropical climate. The risk of transmission is related to socioeconomic factors that have increased in recent years, such as displaced populations due to armed conflicts, violence, poverty in rural areas, disorderly growth of urban centers, continuous migration, exploitation of forests and mining. . The majority of deaths occur in infants, especially in remote rural areas with difficult access to medical care and constitute an event whose surveillance, prevention and control are of special interest in public health

Outcomes from elective colorectal cancer surgery during the SARS‐CoV‐2 pandemic

Aim This study aimed to describe the change in surgical practice and the impact of SARS-CoV-2 on mortality after surgical resection of colorectal cancer during the initial phases of the SARS-CoV-2 pandemic. Method This was an international cohort study of patients undergoing elective resection of colon or rectal cancer without preoperative suspicion of SARS-CoV-2. Centres entered data from their first recorded case of COVID-19 until 19 April 2020. The primary outcome was 30-day mortality. Secondary outcomes included anastomotic leak, postoperative SARS-CoV-2 and a comparison with prepandemic European Society of Coloproctology cohort data. Results From 2073 patients in 40 countries, 1.3% (27/2073) had a defunctioning stoma and 3.0% (63/2073) had an end stoma instead of an anastomosis only. Thirty-day mortality was 1.8% (38/2073), the incidence of postoperative SARS-CoV-2 was 3.8% (78/2073) and the anastomotic leak rate was 4.9% (86/1738). Mortality was lowest in patients without a leak or SARS-CoV-2 (14/1601, 0.9%) and highest in patients with both a leak and SARS-CoV-2 (5/13, 38.5%). Mortality was independently associated with anastomotic leak (adjusted odds ratio 6.01, 95% confidence interval 2.58–14.06), postoperative SARS-CoV-2 (16.90, 7.86–36.38), male sex (2.46, 1.01–5.93), age >70 years (2.87, 1.32–6.20) and advanced cancer stage (3.43, 1.16–10.21). Compared with prepandemic data, there were fewer anastomotic leaks (4.9% versus 7.7%) and an overall shorter length of stay (6 versus 7 days) but higher mortality (1.7% versus 1.1%). Conclusion Surgeons need to further mitigate against both SARS-CoV-2 and anastomotic leak when offering surgery during current and future COVID-19 waves based on patient, operative and organizational risks

The impact of surgical delay on resectability of colorectal cancer: An international prospective cohort study

AimThe SARS-CoV-2 pandemic has provided a unique opportunity to explore the impact of surgical delays on cancer resectability. This study aimed to compare resectability for colorectal cancer patients undergoing delayed versus non-delayed surgery.MethodsThis was an international prospective cohort study of consecutive colorectal cancer patients with a decision for curative surgery (January-April 2020). Surgical delay was defined as an operation taking place more than 4 weeks after treatment decision, in a patient who did not receive neoadjuvant therapy. A subgroup analysis explored the effects of delay in elective patients only. The impact of longer delays was explored in a sensitivity analysis. The primary outcome was complete resection, defined as curative resection with an R0 margin.ResultsOverall, 5453 patients from 304 hospitals in 47 countries were included, of whom 6.6% (358/5453) did not receive their planned operation. Of the 4304 operated patients without neoadjuvant therapy, 40.5% (1744/4304) were delayed beyond 4 weeks. Delayed patients were more likely to be older, men, more comorbid, have higher body mass index and have rectal cancer and early stage disease. Delayed patients had higher unadjusted rates of complete resection (93.7% vs. 91.9%, P = 0.032) and lower rates of emergency surgery (4.5% vs. 22.5%, P ConclusionOne in 15 colorectal cancer patients did not receive their planned operation during the first wave of COVID-19. Surgical delay did not appear to compromise resectability, raising the hypothesis that any reduction in long-term survival attributable to delays is likely to be due to micro-metastatic disease

Delaying surgery for patients with a previous SARS-CoV-2 infection

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