Resumen Introducción: El trasplante hepático ortotópico (THO) es un procedimiento caracterizado por índices significativos de sangrado y alta probabilidad de exposición a hemocomponentes. Objetivos: Esta serie de casos muestra la experiencia de un centro de referencia en la atención de testigos de Jehová (TJ) con enfermedad hepática terminal llevados a THO. Materiales y métodos: Se realizó una búsqueda en nuestra base de datos de TJ que hubiesen sido llevados a THO entre julio de 2007 y agosto de 2012. Se registraron datos correspondientes a su estado preoperatorio, manejo perioperatorio y evolución hasta los 30 días postrasplante. Resultados: Se encontraron cuatro sujetos (3M/1H) con una edad promedio de 42 años (rango de 22-55). Todos recibieron un manejo multidisciplinario que incluyó la optimización preoperatoria de su masa eritrocitaria, profilaxis antifibrinolítica y salvamento celular [volumen promedio de 344 ml (rango de 113-520)]. El volumen promedio de sangrado intraoperatorio fue de 625 ml (rango de 300-1000). Uno de los pacientes presentó disfunción primaria del injerto y muerte, mientras que los demás tuvieron un curso posoperatorio convencional. Conclusiones: Es posible ofrecer la posibilidad de THO para sujetos que se niegan a recibir transfusiones alogénicas, por medio de un abordaje integral que incluya la optimización hematológica perioperatoria y la utilización de medidas de conservación sanguínea, sin que esto afecte significativamente los resultados.

Abstract Introduction: Orthotopic liver transplantation (OLT) is a procedure characterized by high bleeding rates and a significant likelihood of exposure to blood products. Objectives: This case series shows the experience at a referral center for Jehovah's Witnesses (JW) with end-stage liver disease, undergoing OLT. Materials and methods: A search was conducted in our database of JW undergoing OLT between July 2007 and August 2012. The information about their pre-operative condition and progress up to 30 days post-transplantation. Results: Four subjects were identified (3F/1M) with an average age of 42 years (range 22-55). All of them received a multidisciplinary management which included pre-operative optimization of red cell mass, antifibrinolytic prophylaxis, and cell salvage (mean volume of 344mL [range 113-520]). The average intraoperative bleeding volume was of 625mL (range 300-1000). One of the patients presented with a primary graft dysfunction and died, while the rest had a normal postoperative course. Conclusion: It is possible to offer OLT to patients who refuse to receive allogeneic blood transfusions, through a comprehensive approach that includes perioperative hematologic optimization and the use of blood conservation measures, without a significant impact on the outcomes.

RESUMEN La ciudad de Lima está situada sobre depósitos de abanicos aluviales de ríos que fluyen a través de formaciones geológicas que contienen diferentes niveles de uranio. En este trabajo se realiza un estudio sobre el comportamiento espacial y temporal promedio del gas radón en suelos de la ciudad de Lima. La concentración de radón se determinó utilizando el detector de trazas LR-115 tipo 2 durante 36 períodos, de 14 días cada uno, en veinte hoyos distribuidos en los quince distritos de la Ciudad de Lima. La concentración de radón en los poros del suelo estuvo comprendida entre 0.1 y 64.3 kBq/m3 con un valor promedio de 5.6 kBq/m3. La concentración promedio de radón en el gas del suelo fue aproximadamente dos veces menor en invierno que en las otras estaciones. Los altos valores de radón durante octubre/noviembre de 2017 se relacionaron con los terremotos percibidos en la ciudad de Lima en ese período. Las concentraciones más altas de radón se encontraron en áreas de depósitos aluviales cuyo material parental ha sido removido de los volcánicos Quilmaná y Huarangal por los ríos Chillón y Huaycoloro. Las concentraciones de radón en el gas del suelo fueron incluso mayores en áreas más cercanas a los volcánicos y menos distantes de los ríos. Durante el período de máxima inundación de los ríos Chillón, Rímac y Lurín, debido al fenómeno natural "El Nino Costero", se observaron altas concentraciones anómalas de radón en el suelo en la mayoría de los sitios de medición ubicados cerca de los ríos. Esos altos valores de radón se asociaron con las vibraciones del suelo causadas por avalanchas de rocas y escombros en ríos y quebradas.

ABSTRACT Lima City is situated on alluvial fan deposits of rivers flowing through geological formations that contain different levels of uranium. In this paper, a study is made on the average spatial and temporal behavior of radon gas in soils of Lima City. Radon concentration was determined using the LR-115 type 2 track detector during 36 periods, of 14 days each, in twenty holes distributed in the fifteen districts of Lima City. Radon concentration in soil pores ranged from 0.1 to 64.3 kBq/m3 with an average value of 5.6 kBq/m3. The average radon concentration in soil gas was about two times lower in winter than in the other seasons. High radon values during October/November 2017 were related to the earthquakes perceived in Lima City in that period. The highest radon concentrations were found in areas of alluvial deposits whose parental material has been removed from the Quilmaná and Huarangal volcanics by the Chillón and Huaycoloro Rivers. Soil gas radon concentrations were even higher in areas closer to volcanic and less distant from rivers. During the period of maximum flooding of the Chillón, Rímac and Lurín rivers, due to the natural phenomenon “El Niño Costero”, anomalous high soil radon concentrations were observed in most of the measurement sites located near rivers. These high radon values were associated with ground vibrations caused by rock and debris avalanches in rivers and creeks.

Leaf-miners species present in the production zone of vegetable crops of the states of Morelos, Puebla, and Veracruz were studied. 360 flies and 390 parasitoids were collected. The following leaf-miner species were identified: Liriomyza trifolii (Burgess 1880) and Liriomyza sativae Blanchard 1938. Three parasitoid species were identified Neochrysocharis sp., Opius dissitus Muesebeck and Closterocerus cinctipennis Ashmead.

We propose a morphological interpretation of Agromyzidae male terminalia. We also suggest nomenclature for bodies forms in its genitalia, in order to homogenize the criteria and define a fixed morphological scheme for genitalia, applicable to Agromyzidae and all the order Diptera

Na tentativa de contribuir para uma melhor caracterização dos complexos de FeII e FeIII com o ânion oxalato, uma investigação dos seus espectros vibracionais (infravermelho e Raman) e espectros Mössbauer de 57Fe foi realizada. Foi observado que os dois polimorfos de FeC2O4•2H2O, α and β, não podem ser diferenciados com exatidão por nenhum destes métodos espectroscópicos, demonstrando uma alta similaridade estrutural das duas formas cristalinas. Amostras parcialmente deuteradas de β-FeC2O4•2H2O também foram investigadas para aprimorar a análise espectroscópica vibracional. No caso do Fe2(C2O4)3•4H2O, um modelo estrutural pôde ser proposto a partir dos resultados dos dados vibracionais e de Mössbauer combinados. O espectro de Mössbauer registrado a 298 K para este complexo é discutido em detalhes pela primeira vez.

In an attempt to contribute to a better characterization of FeII and FeIII oxalate complexes, an investigation of their vibrational (infrared and Raman) and 57Fe-Mössbauer spectra was performed. It is shown that the two polymorphs, α and β, of FeC2O4•2H2O cannot be accurately differentiated with any of these spectroscopic methods, demonstrating the high structural similarity of these two crystalline forms. Partially deuterated samples of β-FeC2O4•2H2O were also investigated to improve the vibrational-spectroscopic analysis. In the case of Fe2(C2O4)3•4H2O, a structural model, derived from results of combined vibrational and Mössbauer data, could be proposed. The 298 K Mössbauer spectrum for this complex is discussed in detail for the first time.