Resumo Esta pesquisa busca contribuir para o conhecimento das características das interações mediadas por tecnologia entre adultos e crianças no contexto de isolamento social preventivo e obrigatório (ASPO) na Argentina, durante a pandemia causada pelo COVID-19. Especificamente, propõe-se estudar se os contextos de interação com as tecnologias dão origem à produção narrativa das crianças, que características as intervenções dos adultos apresentam em relação à construção da história e quais as intervenções dos adultos respondem às condições da comunicação mediada pela tecnologia. Para tanto, foi analisado um corpus de gravações em vídeo no domicílio que registra situações naturais em que crianças entre 2 e 6 anos utilizam dispositivos tecnológicos (Rosemberg et al., 2021). Os resultados mostram que as situações com tecnologias representam oportunidades para a produção narrativa infantil. Além disso, coincidem com antecedentes que sublinham a relevância da participação contingente do adulto para promover o desenvolvimento da linguagem infantil durante as interações com as tecnologias. Especificamente, destacam-se as estratégias discursivas de adultos que objetivam balizar o desenvolvimento da história infantil (reestruturam, expandem e reconceituam as transmissões infantis, encorajam as crianças a continuar narrando por meio de comentários avaliativos) e manter a interação virtual (reparar falhas técnicas). Assim, representa um dos poucos estudos em nossa região que fornece evidências sobre a produção narrativa infantil mediada por tecnologia no período de isolamento por COVID-19 na Argentina, um contexto novo e desafiador.

Abstract This research seeks to contribute to the knowledge of the characteristics of technology-mediated interactions between adults and children in the context of social, preventive, and mandatory isolation (ASPO) in Argentina during the pandemic caused by COVID-19. Specifically, it aims to study whether the contexts of interaction with technologies give rise to children's narrative production, as well as the characteristics of adult interventions in relation to the story's construction and the adult interventions that are motivated by the conditions of technology-mediated communication. For this purpose, a dataset of home video recordings of natural situations in which children between 2 and 6 years old use technological devices was analyzed (Rosemberg et al., 2021). The results show that situations that involve the use of technologies provide opportunities for children's narrative production. In addition, they agree with previous literature that underlines the relevance of adults' contingent participation during interactions involving technology for the development of children's language. Specifically, the analysis highlights adults' discursive strategies that aim to scaffold the development of children's stories (by restructuring, expanding, and reconceptualizing children's utterances and by encouraging children to continue narrating through evaluative comments) and to sustain virtual interaction (by repairing technical failures). Thus, this research stands as one of the few studies in our region that provides evidence about children's narrative production mediated by technology during confinement due to COVID-19 in Argentina, a new and challenging context.

Resumen Esta investigación busca contribuir al conocimiento de las características de las interacciones mediadas por tecnologías entre adultos y niños en el contexto del Aislamiento Social, Preventivo y Obligatorio (ASPO) en Argentina, durante la pandemia provocada por COVID-19. En concreto, se propone estudiar si los contextos de interacción con tecnologías dan lugar a la producción narrativa infantil, qué características presentan las intervenciones de los adultos en relación con la construcción del relato y qué intervenciones adultas responden a las condiciones de la comunicación mediada por tecnologías. Con este propósito, se analizó un corpus de videograbaciones en el hogar que registra situaciones naturales en las que niños de entre 2 y 6 años utilizan dispositivos tecnológicos (Rosemberg et al., 2021). Los resultados evidencian que las situaciones que involucran el empleo de tecnologías representan oportunidades para la producción narrativa por parte de los niños. Además, coinciden con antecedentes que subrayan la relevancia que posee la participación contingente del adulto durante las interacciones con tecnologías para promover el desarrollo del lenguaje infantil. Específicamente, se destacan las estrategias discursivas de los adultos que apuntan a andamiar el desarrollo del relato infantil (reestructuran, expanden y reconceptualizan las emisiones infantiles, alientan a los niños a seguir narrando mediante comentarios evaluativos) y a sostener la interacción virtual (reparan fallas técnicas). Así, representa uno de los pocos estudios de nuestra región que brinda evidencia sobre la producción narrativa infantil mediada por tecnologías en el período de aislamiento por COVID-19 en Argentina, un contexto novedoso y desafiante.

Abstract Peru is one of the main cocoa exporters worldwide, being the Amazonas region home of the native fine aroma cocoa (CNFA). The objective of this work was to evaluate the physicochemical and organoleptic properties of the CNFA grown in Utcubamba province, Amazonas. The cocoa samples were collected in four areas (Cajaruro, Naranjos Alto, Llunchicate, and La Palma) in which farmers carry out the same postharvest handling practices. Samples underwent a six-day fermentation process and dried in full sun. The physical and chemical parameters of dried beans were evaluated. Then, chocolate pastes were evaluated through a sensory test. We found that the CNFA beans presented optimal physical characteristics to be used at an industrial level. In terms of chemical parameters there was no difference between the percentage of fat. The Cajaruro and Llunchicate samples had lower acidity values and adequate pH, which reflected on their greater acceptance in the sensory test. Therefore, CNFA beans from the Amazonas region, Peru, can be used as raw material to produce gourmet chocolates.

RESUMEN El trasplante de hígado es el principal tratamiento para la enfermedad hepática en etapa terminal. El cuidado postoperatorio es un gran desafío para disminuir la morbimortalidad en los pacientes. En este sentido, el manejo en la UCI hepática permite manejo hemodinámico, monitoreo de coagulación, soporte renal, alteraciones electrolíticas, soporte respiratorio y destete temprano de ventilación mecánica y evaluación del injerto hepático. Objetivo: El presente estudio muestra los resultados del manejo de pacientes trasplantados de hígado en 20 años de experiencia en un centro de trasplante en un país de ingresos bajos a medios. Materiales y métodos: Se revisaron las historias clínicas de 273 pacientes adultos en UCI en el posoperatorio inmediato de trasplante hepático, desde el 20 de marzo de 2000 hasta el 30 de noviembre de 2020, incluyendo el efecto de la pandemia provocada por el COVID-19. Se excluyeron los pacientes con trasplante de hígado-riñón, retrasplantados, SPLIT y dominó. Resultados: La etiología más frecuente para LTx fue NASH (35%), la edad promedio fue de 49 años, MELD Score varió 15 - 20 (47,5%), 21 - 30 (46%) > 30 (6,2%). Estancia pretrasplante en UCI 7%, estancia media en UCI: 7,8 días. Admisión media APACHE: 14,9 puntos. Extubación weaning del 91,8% de los pacientes en UCI y Fast Track en el 8,2%. La complicación respiratoria más frecuente fue atelectasia 56,3%, neumonía (31,3%); FRA 1 (60,9%) y 11,1% con soporte de hemodiálisis (FRA 3). Inmunosupresión: Tacrolimus (8,9%). La mortalidad postoperatoria en la UCI fue del 6,2%. Conclusiones: El manejo del trasplante hepático en UCI es fundamental para lograr resultados óptimos en pacientes que presentan enfermedad hepática avanzada y requieren soporte vital avanzado en el postoperatorio inmediato y así optimizar la supervivencia del injerto.

ABSTRACT Liver transplantation is the major treatment for end-stage liver disease. Postoperative care is a great challenge to reduce morbidity and mortality in patients. In this sense, management in the liver ICU allows hemodynamic management, coagulation monitoring, renal support, electrolyte disturbances, respiratory support and early weaning from mechanical ventilation and evaluation of the liver graft. Objective: The present study shows the results of the management of liver transplant patients in 20 years of experience in a transplant center in a low- to middle-income country. Materials and methods: The medical records of 273 adult patients in the ICU in the immediate postoperative liver transplant were reviewed, from March 20, 2000 to November 30, 2020, including the effect of the pandemic caused by COVID-19. Liver-kidney, retransplanted, SPLIT, and domino transplant patients were excluded. Results: The most frequent etiology for LTx was NASH (35%), the mean age was 49 years, MELD Score ranged 15 - 20 (47.5%), 21 - 30 (46%) > 30 (6.2%). ICU pre transplant stay 7%, average ICU stay: 7.8 days. APACHE average admission: 14.9 points. Weaning extubation of 91.8% patients in ICU and Fast Track in 8.2%. The most frequent respiratory complication was atelectasis 56.3%, pneumonia (31.3%); AKI 1 (60.9%), and 11.1% with hemodyalisis support (AKI3). Immunosuppression: Tacrolimus (8.9%). Post-operative ICU mortality was 6.2%. Conclusions: The management of liver transplantation in the ICU is essential to achieve optimal results in patients who present advanced liver disease and require advanced life support in the immediate postoperative period and thus optimize graft survival.

RESUMEN Introducción: la acromegalia es una patología de larga evolución y compromiso multisistémico, originada por un aumento en la liberación de hormona de crecimiento luego del cierre metafisario de los huesos largos. Su diagnóstico es complejo y suele presentarse entre la quinta y sexta década de la vida. El tratamiento incluye la resección quirúrgica y manejo mediante quimioterapia y radioterapia, así como control endocrino fármacológico. La enfermedad presenta una tasa de recidiva comprendida entre el 2 a 14%. Presentación de caso: paciente femenina de 67 años de edad con diagnóstico de acromegalia hace 15 años, quien luego de ser sometida a tratamiento estándar, presenta manifestaciones clínicas progresivas y compatibles con una función hipofisaria activa. Conclusiones: la paciente en efecto presentó recidiva de la enfermedad con persistencia del tumor benigno, debido a la interrupción del tratamiento y el insuficiente seguimiento del caso; por tanto, es fundamental el seguimiento estricto en el paciente que recibe manejo quirúrgico y tratamiento farmacológico por parte del equipo de salud. MÉD.UIS. 2017;30(2):89-93.

ABSTRACT Introduction: acromegaly is a disease of long evolution and multisystemic involvement, caused by an increased release of growth hormone after the metaphyseal closure of long bones. Diagnosis is often difficult and usually occurs between the fifth and sixth decade of life. The treatment is based on surgical resection, chemotherapy and radiotherapy, as on endocrine control by drugs. The disease has a low recurrence rate of from 2 to 14%. Case presentation: a 67 year old female patient with a diagnosis of acromegaly 15 years ago, who, after being subjected to standard treatment, presents progressive and clinical manifestations compatible with an active pituitary function. Conclusions: the patient relapsed effect of the disease with persistency of the benign tumor, due to the discontinuation of treatment and insufficient monitoring of the case; therefore strict monitoring is essential in patients receiving pharmacological therapy and surgical management by the health team. MÉD.UIS. 2017;30(2):89-93.

The use of probiotics in aquaculture is one of the strategies to reduce consumption of antibiotics and mitigate the impacts on the environment. The purpose of this research was to evaluate the effect of the dietary inclusion of microencapsulated probiotics on some zootechnical parameters in red tilapia fingerlings (Oreochromis sp.). At the experimental station of the University Corporation Lasallina, two separated groups of fingerlings were given a diet with 42% of crude protein, 86% of digestibility and energy 4765,8 Kcal/Kg, but to one of the groups, 1% of microencapsulated probiotics was included. The fry of both groups were weighted and measured at three times, and the zootechnical variables such as feed conversion (FC), specific growth rate (SGR), weight gain (WG), size gain (SG), and survival percentage were statistically analyzed. The results showed p<0.05 statistical significance and confirmed that the fish fed with probiotics had a better performance of the parameters analyzed.

El empleo de probióticos en la alimentación acuícola es una de las estrategias para disminuir el consumo de antibióticos en los sistemas intensivos y mitigar los impactos sobre el medio ambiente. El objetivo de esta investigación fue evaluar el efecto de la inclusión en la dieta de probióticos microencapsulados sobre algunos parámetros zootécnicos en alevinos de tilapia roja (Oreochromis sp.). Se empleó una dieta con y sin probióticos, ambas con 42% de proteína bruta, 86% de digestibilidad y la energía de 4765.8 Kcal/Kg; a la que contenía probióticos se le incluyó 1% de probióticos microencapsulados. Los experimentos se realizaron en la estación experimental de la Corporación Universitaria Lasallista. A los alevinos de ambos grupos, con y sin probióticos, se les midió el peso y la talla. Se compararon estadísticamente algunas variables zootécnicas como son la conversión alimentaria (CA), la tasa de crecimiento específica (TCE), la ganancia de peso (GP), la ganancia de talla (GT) y el porcentaje de sobrevivencia. El estudio permitió asegurar que los peces que consumieron la dieta con probióticos, bajo condiciones experimentales, tuvieron mejor desempeño en los parámetros zootécnicos analizados.

Objective The Colombian National Institute of Health has been studying the epidemiology of several respiratory viruses since 1997 to identify their circulation patterns and the role they play as pathogenic agents of acute and/or moderate respiratory infection (RI) in children aged less than 5. Methods The study used sentinel surveillance methods in sentinel hospitals in Bogotá and Manizales. Four to eight nasopharyngeal samples were collected every week in the sentinel hospitals from children aged less than five consulting for low or high RI. Nasopharyngeal samples were processed by indirect immunofluorescence. Results 1 743 children were examined from January 1997 to December 2003; 35 % were found to be positive for respiratory viruses. Respiratory syncytial virus was found more frequently while adenovirus was found in 47 patients (2,6 % of the sample; 1,4-2,5 % 95 %CI). Adenovirus was detected throughout the year (excepting January) but peaks occurred in March, July, October and December. Most patients were hospitalised (50-87%) and were in need of oxygen support. Fatality:case ratio was 7%; B7, 2, C1, and B3 serotypes were identified. Conclusion The data suggested that respiratory infection due to adenovirus was a low frequency event amongst the children seeking medical care at the sentinel hospitals. However, when respiratory disease was caused by adenovirus, it was severe.

Objetivo Desde 1997 el Instituto Nacional de Salud vigila la ocurrencia de algunos virus respiratorios con el fin de identificar sus patrones de circulación y el papel que tienen en la ocurrencia de enfermedad respiratoria moderada o severa, en niños menores de 5 años. Métodos La vigilancia está basada en hospitales centinela de Bogotá y Manizales en los que todas las semanas se recolectan 4 a 8 muestras nasofaríngeas, de niños menores de cinco años que consultan por enfermedad respiratoria alta o baja. Las muestras son procesadas por inmunofluorescencia indirecta. Resultados De Enero de 1997 a Diciembre de 2003 se examinaron 1 743 pacientes y se encontraron virus respiratorios en 35 % de las muestras procesadas. El adenovirus se encontró en 47 casos (2,6 %, IC95 % 1,4-3,5 %) y fue detectado durante todos los meses, excepto enero, con picos en marzo, julio, octubre y diciembre. La mayoría de los pacientes requirieron hospitalización (50 a 87 %) y soporte con oxigeno y la razón muerte/caso fue de 7%. Los serotipos de adenovirus encontrados fueron B7, 2, C1 y B3. Conclusiones Los datos del presente estudio datos sugieren que en nuestro medio los adenovirus no son los agentes mas frecuentes de enfermedad respiratoria pero, cuando están presentes, producen enfermedad severa.

Objetivo Desde 1997 el Instituto Nacional de Salud vigila la ocurrencia de algunos virus respiratorios con el fin de identificar sus patrones de circulación y el papel que tienen en la ocurrencia de enfermedad respiratoria moderada o severa, en niños menores de 5 años. Métodos La vigilancia está basada en hospitales centinela de Bogotá y Manizales en los que todas las semanas se recolectan 4 a 8 muestras nasofaríngeas, de niños menores de cinco años que consultan por enfermedad respiratoria alta o baja. Las muestras son procesadas por inmunofluorescencia indirecta. Resultados De Enero de 1997 a Diciembre de 2003 se examinaron 1 743 pacientes y se encontraron virus respiratorios en 35 % de las muestras procesadas. El adenovirus se encontró en 47 casos (2,6 %, IC95 % 1,4-3,5 %) y fue detectado durante todos los meses, excepto enero, con picos en marzo, julio, octubre y diciembre. La mayoría de los pacientes requirieron hospitalización (50 a 87 %) y soporte con oxigeno y la razón muerte/caso fue de 7%. Los serotipos de adenovirus encontrados fueron B7, 2, C1 y B3. Conclusiones Los datos del presente estudio datos sugieren que en nuestro medio los adenovirus no son los agentes mas frecuentes de enfermedad respiratoria pero, cuando están presentes, producen enfermedad severa.

Objective The Colombian National Institute of Health has been studying the epidemiology of several respiratory viruses since 1997 to identify their circulation patterns and the role they play as pathogenic agents of acute and/or moderate respiratory infection (RI) in children aged less than 5. Methods The study used sentinel surveillance methods in sentinel hospitals in Bogotá and Manizales. Four to eight nasopharyngeal samples were collected every week in the sentinel hospitals from children aged less than five consulting for low or high RI. Nasopharyngeal samples were processed by indirect immunofluorescence. Results 1 743 children were examined from January 1997 to December 2003; 35 % were found to be positive for respiratory viruses. Respiratory syncytial virus was found more frequently while adenovirus was found in 47 patients (2,6 % of the sample; 1,4-2,5 % 95 %CI). Adenovirus was detected throughout the year (excepting January) but peaks occurred in March, July, October and December. Most patients were hospitalised (50-87%) and were in need of oxygen support. Fatality:case ratio was 7%; B7, 2, C1, and B3 serotypes were identified. Conclusion The data suggested that respiratory infection due to adenovirus was a low frequency event amongst the children seeking medical care at the sentinel hospitals. However, when respiratory disease was caused by adenovirus, it was severe.

A photographic map was made of polytene chromosomes of ovarian nurse cells of Anopheles bellator females. The chromosomes of this species have complete or partial homology with those of A. cruzii, mainly in the telomeric and centromeric regions. Variability at the single band level was observed as asymmetric bands at seven different positions. One inversion (3Ra) was detected in the 3R arm.