Abstract Introduction: The endoscopic retrograde colangiopancreatography (ERCP) is an important diagnostic and therapeutic tool for the pancreatobiliary diseases. A procedure that requires expertise due to its complexity and has a high complication rate. The American Association of Gastrointestinal Endoscopy (ASGE) established in 2015, quality indicators for the use of CPRE. Outcome: Determine the level of quality indicators in the use of ERCP in the endoscopy service of the Hospital Juarez de Mexico. Material and Methods: Observational, cross-sectional study by reviewing quality indicators of the ERCP performed in the Hospital Juarez de Mexico, between January 2016 and December 2019. Results: 688 ERCP were included, 521 were women (60%), average age was 58 years ± 12. The most common ERCP indication was bile duct disease in 405 procedures (47%) biliary stenosis 137 (16%), pancreatitis 84 (10%), bile leak 77 (9%), jaundice 62 (7%), acute cholangitis 55 (6%) biliary stent exchange 47 (5%). Quality indicators previous to the procedure were a correct indication of the study in 863 (99%), all of them with a previous consent (100%), correct administration of antibiotic 849 (96%). All of the procedures, were made or supervised by a trained endoscopist and were reported annually. During the procedure a Deep cannulation was obtained in 851(98%) and without alteration of anatomy in 824 (95%), bile duct resolution 445 (91%) and adequate biliary stent in 200 (93%), but frequency and dosage of radiation was not documented. Post procedure quality indicators included a complete report in all patients. (100%) Adverse events reported in 33 procedures (100%), post ERCO pancreatitis in 32 (4%), post sphincterotomy/sphincteroplasty hemorrhage in 9 (1%) and intestinal perforation in 2 procedures (0.3%). There was no record of the patient follow up at 14 days. Conclusions: Quality indicators in ERCP in our hospital are within the percentages required by ASGE, we offer quality procedures of ERCP to our population, according to international standards.

Resumen Introducción: La colangiopancreatografía endoscópica retrograda (CPRE) en la actualidad es una herramienta endoscópica importante para el diagnostico y tratamiento de diferentes enfermedades biliopancreáticas. Debido a la complejidad del procedimiento y a la alta tasa de complicaciones, se han desarrollado indicadores para estandarizar un estudio de calidad. La asociación americana de endoscopia gastrointestinal (ASGE) publico los indicadores de calidad para la CPRE en 2015. Objetivo: Determinar el el apego a los indicadores de calidad de la CPRE en el servicio de endoscopia del Hospital Juárez de México. Material y métodos: Estudio transversal, observacional en donde se analizaron indicadores de calidad en las CPRE realizadas en el Hospital Juárez de México entre Enero 2016 y Diciembre 2018. Resultados: Se incluyeron 688 CPRE, de los cuales 521 son femeninos (60%), la mediana de edad de 58 años ± 12. La indicación mas común fue coledocolitiasis en 405 pacientes (47%), seguido de estenosis biliar 137 (16%), pancreatitis biliar 84 (10%), fistula biliar 77 (9%), síndrome ictérico 62 (7%), colangitis aguda 55 (6%) recambio de prótesis biliar 47 (5%), respectivamente. Los indicadores previo al procedimiento, indicación correcta de la CPRE 863 (99%), todos con firma de consentimiento informado (100%), indicación y administración correcta del antibiótico 849 (96%).Todos los procedimientos fueron realizados o supervisados por un endoscopista avalado por la Asociación Mexicana de Endoscopía Gastrointestinal (AMEG) y reportados en la bitácora anual (100%). Los indicadores durante el procedimiento fueron: canulación de papila profunda 851(98%), sin anatomía alterada 824 (95%), resolución de la coledocolitiasis (91%), colocación de stent biliar por debajo de hilio hepático (93%) y no se realizo medida de dosis ni frecuencia de radiación en ningún procedimiento. Indicadores posterior a CPRE, se obtuvo un reporte completo en los 866 procedimientos (100%), 33 eventos adversos reportados (100%), pancreatitis post CPRE 32 (4%), hemorragia 9 (1%), perforación intestinal 2 CPRE (0.3%). No se contacto de manera particular a los pacientes a los 14 días. Conclusión: Los indicadores de calidad en la realización de colangiopancreatografías endoscópicas evaluados en este estudio se encuentran dentro de los porcentajes establecidos por la ASGE; por lo que es un estudio de adecuada calidad el que se ofrece a nuestra población.

This paper describes a process of analysis of the Gaussian model ISCST3 of air pollutants dispersión applied in a densely populated area, the Higher Polytechnic Institute José Antonio Echeverría (CUJAE) in Havana. For the numerical simulation was carried out a sources and emissions inventory of air pollutants in the área, to estímate the concentration of the conservative pollutant, in this case sulfur dioxide. The objective is to show the sensitivity of numerical simulation with variation in the input of several parameters: average albedo, Bowen ratio, surface roughness and wind speed. After obtaining the results, the influence of variatíons in these parameters input and contaminant concentration studied is analyzed. Concluding that the wind speed is the parameter to which the model is more sensitive and has the lowest sensitivity to changes in albedo input. The least affected receptor concentration values estimated for 24 hours is the number 2, located in the center of the screen and land in the campus CUJAE. While for hourly values, receptors 1 and 3 are less sensitive.

El presente documento describe un proceso de análisis realizado sobre el modelo gaussiano de dispersión de contaminantes atmosféricos ISCST3 aplicado en un área densamente poblada, el Instituto Superior Politécnico José Antonio Echeverría (CUJAE) ubicado en la Habana. Para la simulación numérica se realizó un inventario de fuentes y de emisiones de contaminantes atmosféricos en la zona, para estimar la concentración del contaminante conservativo, en este caso dióxido de azufre. El objetivo es mostrar la sensibilidad de esta simulación numérica con la variación en la entrada de varios parámetros: albedo medio, razón de Bowen, rugosidad de la superficie y velocidad del viento. Una vez obtenidos los resultados se analiza la influencia de las variaciones en la entrada de dichos parámetros sobre la concentración del contaminante estudiado. Concluyendo que la velocidad del viento es el parámetro al que el modelo es más sensible y presenta la menor sensibilidad a los cambios en la entrada del albedo. El receptor menos afectado en los valores de concentración estimados para 24 horas es el receptor 2, ubicado en el centro de la malla y correspondiente al campus universitario de la CUJAE. Mientras que para valores horarios los menos sensibles son los receptores 1 y 3.

A beterraba (Beta vulgaris), importante hortaliça cultivada no Brasil, é muito suscetível à interferência de plantas daninhas, sendo Amaranthus viridis uma das principais espécies encontradas em áreas de horticultura. O objetivo deste trabalho foi estudar a resposta da beterraba à competição com diferentes densidades de A. viridis, por meio da avaliação de características de crescimento e produção da cultura. Um experimento em caixas, com área útil de 0,25 m², foi conduzido em Jaboticabal-SP, Brasil, mantendo-se constante oito plantas por caixa de beterraba em convivência com 0, 1, 2, 3, 4 e 6 plantas por caixa de A. viridis. A cultura da beterraba foi muito suscetível à interferência imposta por plantas de A. viridis, tendo sua área foliar, número de folhas, massa seca de folhas, diâmetro médio da raiz e massa fresca de raízes significativamente reduzidos mesmo em baixas densidades populacionais da planta daninha; a massa fresca de raízes foi a mais sensível à interferência.

Table beet (Beta vulgaris), an important vegetable cultivated in Brazil, is very susceptible to weed interference, with Amaranthus viridis being one of the main species found in horticultural areas. The objective of this research was to study the response of table beet to competition at different densities of A. viridis, based on evaluation of crop growth and production characteristics. An experiment was carried out in 0.25 m² pots in Jaboticabal-SP, Brazil, with 8 table beet plants per pot kept in constant coexistence with 0, 1, 2, 3, 4 and 6 plants per pot of A. viridis. The table beet crop was very susceptible to interference of A. viridis, with its leaf area, number of leaves, leaf dry mass, root mean diameter and root fresh mass being significantly reduced even under low weed densities, with root fresh mass being the most sensitive to interference.

O objetivo deste trabalho foi verificar a seletividade de herbicidas utilizados em áreas de eucalipto sobreo crescimento de Myracrodruon urundeuva. O experimento foi conduzido em casa de vegetação em duas épocas diferentes (2002 e 2003), em delineamento inteiramente casualizado, arranjado em esquema fatorial (5x4), sendo cinco herbicidas em quatro doses, com seis repetições. Os tratamentos, com as doses, foram: haloxyfop-methyl (0,00, 120, 240 e 480 g ha-1), sulfentrazone (0,00, 300, 600 e 1.200 g ha-1), isoxaflutole (0,00, 150, 300 e 600 g ha-1), oxyfluorfen (0,00, 720, 1.440 e 2.880 g ha-1); e glyphosate (0,00, 720, 1.440 e 2.880 g ha-1). Em ambos os experimentos foram avaliados: efeitos fitotóxicos do produto, número de folíolos, altura de plantas; no segundo, foi feita ainda a análise de clorofila a e b e de carotenóides. O herbicida que apresentou maior fitoxicidade e que comprometeu o desenvolvimento da aroeira foi o glyphosate, sendo, portanto, não recomendado para o controle de invasoras em áreas de plantio de aroeira. Os outros herbicidas não comprometeram o desenvolvimento desta planta, apresentando, por isso, potencial para uso no manejo de plantas daninhas no cultivo desta espécie.

The objective of this work was to verify the selectivity of herbicides applied in eucalyptus areas upon the growth of Myracrodruon urundeuva.. The experiment was carried out under greenhouse conditions during two seasons (2002 and 2003), in a completely randomized experimental design with five herbicides in four doses arranged in a factorial design 5x4, and six replicates. The treatments were: haloxyfop-methyl at the doses (0.00, 120, 240 and 480 g ha-1); sulfentrazone (0.00, 300, 600 and 1.200 g ha-1), isoxaflutole (0.00, 150, 300 and 600 g ha-1); oxyfluoren (0.00, 720, 1.440 and 2.880 g ha-1) and glyphosate (0.00, 720, 1.440 and 2.880 g ha-1) plant toxicity effects, number of leaflets and plant height were evaluated in both experiments and analyses of chlorophyll a and b and carotenoids were also conducted in the second. Glyphosate presented the highest plant toxicity, compromising the development of the aroeira plant, thus it is not recommended for weed control in aroeira planting areas. The other herbicides did not compromise the development of this plant, thus they can be potentially used in weed management control of this species.