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Commuters in urban settlements are frequently exposed to high concentrations of air pollutants due to their proximity to mobile sources, making exposure to traffic-related air pollutants an important public health issue. Recent trends in urban transport towards zero- and low-tailpipe emission alternatives will likely result in decreased exposure to air pollutants. The TrUST (Urban transformations and health) study offers a unique opportunity to understand the impacts of a new cable car (TransMiCable) in underserved communities within Bogotá, Colombia. The aims of this study are to assess the personal exposure to fine particulate matter (PM

During the novel coronavirus disease (COVID-19) pandemic, several environmental factors have influenced the activities and the protection policy measures. This has had a major effect on climate change and global environmental catastrophe. In many countries, the strategy of closing various activities such as tourism, industrial production, stopped normal life, transportation, among others. This closure has a positive impact on the environment. However, the massive use of masks and personal protection could significantly increase pollution worldwide. The impact on the environment needs to be calculated to have information for public health actions. In this study, we present a first overview of the potential impacts of COVID-19 on some environmental matrices in Bogota, Colombia.

Commuters are often exposed to higher concentrations of air pollutants due to its proximity to mobile sources. Despite recent trends in urban transport toward zero- and low-tailpipe emission alternatives, the assessments of the impact of these transformations on commuter exposure are limited by the low frequency of such studies. In this work, we use a unique data set of personal exposure concentration measurements collected over the span of 5 years to analyze changes due to the introduction of a new fleet for Bogotá's Bus Rapid Transit System. In that system, over a thousand Euro-II and -III diesel-powered buses were replaced with Euro-VI compressed natural gas and filter-equipped Euro-V diesel buses. We measured personal exposure concentrations of equivalent black carbon (eBC), fine particulate (PM

Clínica de Gastroenterología “Prof. Dra. Carolina Olano”. Facultad de Medicina, Universidad de la República. Montevideo, Uruguay. Correo electrónico: digo.castaldelli@gmail.com. Correspondencia: Hospital de Clínicas. Av. Italia s/n (CP 11600). Montevideo, Uruguay Tel: +59824808472 Cada vez más los pacientes diagnosticados con anemia son referidos al gastroenterólogo para su evaluación. La necesidad de realizar un adecuado planteo clínico y una correcta interpretación de las pruebas de diagnóstico ha motivado la revisión de este tema. Varios trastornos gastroenterológicos, con frecuencia, conducen a anemia como resultado de pérdidas sanguíneas, inflamación, malabsorción o a consecuencia de las terapias farmacológicas. En algunas patologías como la cirrosis, EII o neoplasias las causas son a menudo multifactoriales. Esta revisión, pretende proporcionar un enfoque útil para la práctica clínica. Para ello se ha revisado la información actualizada acerca de la patogénesis, diagnóstico y tratamiento de la anemia vinculada a patologías digestivas y se han confeccionados cuadros y algoritmos para facilitar su comprensión. More and more patients diagnosed with anemia are referred to the gastroenterologist for evaluation. The need to carry out an adequate clinical approach and a correct interpretation of diagnostic tests has motivated this review. Several digestive diseases frequently lead to anemia because of blood loss, inflammation, malabsorption, or drug therapies. In some of them such as cirrhosis, IBD or neoplasms, the etiology is multifactorial. This review is intended to provide a useful approach to clinical practice. To this aim, updated information on the pathogenesis, diagnosis, and treatment of anemia related to digestive diseases has been reviewed, and tables and algorithms have been built to favor its understanding. Cada vez mais pacientes diagnosticados com anemia são encaminhados ao gastroenterologista para avaliação. A necessidade de realizar uma abordagem clínica adequada e uma interpretação correta dos testes de diagnóstico motivou a revisão deste tema. Vários distúrbios gastroenterológicos freqüentemente levam à anemia como resultado de perda de sangue, inflamação, má absorção ou pelas próprias terapias farmacológicas. Em algumas patologias como cirrose, DII ou neoplasias, as causas costumam ser multifatoriais. Esta revisão visa fornecer uma abordagem útil à prática clínica. Para esse fim, foram revisadas informações atualizadas sobre a patogênese, o diagnóstico e o tratamento da anemia associada à patologia digestiva e foram elaboradas tabelas e algoritmos para facilitar seu entendimento.

Neurofibromatosis type 1, also known as von Recklinghausen disease, is an inherited neurocutaneous disorder with gastrointestinal involvement in 5-25% of the patients, which develops following cutaneous manifestations. Only 5% have symptoms such as abdominal pain, diarrhea, palpable mass, bleeding, obstruction or intestinal perforation. There is an increased risk of developing digestive malignancies, frequently in the small bowel. The following report presents the case of a patient with neurofibromatosis type 1, with the diagnosis of a jejunal gastrointestinal stromal tumor and a fibroid inflammatory polyp in the context of gastrointestinal bleeding.

The utilization of edible insect protein as a novel source and potential substitute for conventional proteins used in food/feed formulations has recently drawn attention in industrial countries. The development of efficient processes for the recovery of insect protein is of crucial importance and will help to gain industrial applicability. However, systematic studies about important unit operations of insect protein recovery procedures are scarce. The present study evaluates a centrifugal fractionation concept by investigating the impact of solubilization pH (7.0–10.5), centrifugation speed/force (4000-8850 min−1; 1860–9170 g) and centrifugation time (10–30 min) on the protein recovery of mealworm larvae (Tenebrio molitor L.). Therefore, a 23 full factorial screening design was applied. The statistical evaluation identified the centrifugation force and solubilization pH as key parameters determining the protein content and recovery in the supernatant fraction. Within the experimental campaign, protein content was enhanced from initially 39 g/100 g dry base (db) in the larvae to 56–65 g/100 g db in the extracts while the recovery ranged from 31 to 58%. The results of this study elucidated the main factors determining the efficiency of the centrifugal separation step for mealworm protein concentration and recovery and provide a database for the design of industrial separation processes.

RESUMEN Objetivo Describir la percepción de violencia desde escolares de dos instituciones educativas de la localidad de Kennedy, Bogotá. Métodos Estudio cualitativo, tipo Investigación Acción Participación (IAP). Los participantes de estos grupos focales fueron elegidos de manera aleatoria, 5 estudiantes por cada curso para un total de 15 grupos focales y 75 alumnos seleccionados previo consentimiento informado de los padres y asentimiento de los estudiantes. Se tuvieron en cuenta los aspectos éticos. Resultados Participantes conformados por 61 escolares, 30 niños (49,1%) y 31 niñas (50,8%), con edades entre 5 y 12 años, de los cursos transición 10 participantes (16,3%), primero 3 estudiantes (4,9%), segundo 10 niños (16,3%), tercero 18 estudiantes (29,5%), cuarto 10 participantes (16,3%) y quinto 10 niños (16,3%). El estrato socioeconómico de los niños es 1 y 2. Los resultados se presentan en cuatro categorías: causas, problemática, consecuencias y soluciones, en las cuales emergieron 8 (ocho) subcategorías, que describen la percepción que tienen los niños de la violencia en el hogar y el colegio donde se resalta la violencia intrafamiliar física y verbal, consumo de sustancias psicoactivas y abuso sexual. Conclusión Se evidenció en la población escolar de la localidad de Kennedy que la violencia es una problemática de salud pública ya establecida en los hogares y en el ámbito escolar; el origen de esta violencia se da en los hogares de los niños, por tanto, es importante construir y generar propuestas de intervención a partir de las soluciones planteadas por los mismos niños a nivel estructural y familiar. ABSTRACT Objective To describe the perception of violence in schoolchildren of two schools of the borough of Kennedy, Bogotá. Methods Participatory action research (PAR) and qualitative study. The participants in these focus groups were chosen randomly, 5 students per course, for a total of 15 focus groups and 75 students included, prior informed consent from parents and students. Ethical aspects were taken into account. Results 61 participants, 30 boys (49.1%) and 31 girls (50.8%), were included in the study, with an age range between 5 and 12 years. 10 participants (16.3%) were kindergarten students, 3 were first-grade students (4.9%), 10 second-grade students (16.3%), 18 third-grade students (29.5%), 10 fourth-grade students (16.3%), and 10 fifth-grade students (16.3%). The socioeconomic status of the children was ranked as 1 and 2. The results are presented in four categories: causes, problems, consequences and solutions, from which 8 subcategories emerged; they describe the perception that children have about violence at home and schools, highlighting physical and verbal domestic violence, the use of psychoactive substances and sexual abuse. Conclusion There is evidence in the school population of the borough of Kennedy that violence is a public health problem established in homes and in schools. The origin of this violence is mainly children's homes, therefore, it is important to build and generate proposals for intervention based on the solutions raised by the children themselves regarding the structural and family levels.

To describe the perception of violence in schoolchildren of two schools of the borough of Kennedy, Bogotá.Participatory action research (PAR) and qualitative study. The participants in these focus groups were chosen randomly, 5 students per course, for a total of 15 focus groups and 75 students included, prior informed consent from parents and students. Ethical aspects were taken into account.61 participants, 30 boys (49.1%) and 31 girls (50.8%), were included in the study, with an age range between 5 and 12 years. 10 participants (16.3%) were kindergarten students, 3 were first-grade students (4.9%), 10 second-grade students (16.3%), 18 third-grade students (29.5%), 10 fourth-grade students (16.3%), and 10 fifth-grade students (16.3%). The socioeconomic status of the children was ranked as 1 and 2. The results are presented in four categories: causes, problems, consequences and solutions, from which 8 subcategories emerged; they describe the perception that children have about violence at home and schools, highlighting physical and verbal domestic violence, the use of psychoactive substances and sexual abuse.There is evidence in the school population of the borough of Kennedy that violence is a public health problem established in homes and in schools. The origin of this violence is mainly children's homes, therefore, it is important to build and generate proposals for intervention based on the solutions raised by the children themselves regarding the structural and family levels.Describir la percepción de violencia desde escolares de dos instituciones educativas de la localidad de Kennedy, Bogotá.Estudio cualitativo, tipo Investigación Acción Participación (IAP). Los participantes de estos grupos focales fueron elegidos de manera aleatoria, 5 estudiantes por cada curso para un total de 15 grupos focales y 75 alumnos seleccionados previo consentimiento informado de los padres y asentimiento de los estudiantes. Se tuvieron en cuenta los aspectos éticos.Participantes conformados por 61 escolares, 30 niños (49,1%) y 31 niñas (50,8%), con edades entre 5 y 12 años, de los cursos transición 10 participantes (16,3%), primero 3 estudiantes (4,9%), segundo 10 niños (16,3%), tercero 18 estudiantes (29,5%), cuarto 10 participantes (16,3%) y quinto 10 niños (16,3%). El estrato socioeconómico de los niños es 1 y 2. Los resultados se presentan en cuatro categorías: causas, problemática, consecuencias y soluciones, en las cuales emergieron 8 (ocho) subcategorías, que describen la percepción que tienen los niños de la violencia en el hogar y el colegio donde se resalta la violencia intrafamiliar física y verbal, consumo de sustancias psicoactivas y abuso sexual.Se evidenció en la población escolar de la localidad de Kennedy que la violencia es una problemática de salud pública ya establecida en los hogares y en el ámbito escolar; el origen de esta violencia se da en los hogares de los niños, por tanto, es importante construir y generar propuestas de intervención a partir de las soluciones planteadas por los mismos niños a nivel estructural y familiar.