ABSTRACT: This study adopted a more macroscopic perspective to focus on the issue of rural poverty in China. By selecting indicators reflecting various levels of poverty recurrence, considering risk factors across multiple dimensions, and employing advanced methods, we constructed a novel China Rural Poverty Recurrence Risk Index. We utilized a Markov switching model to delve into the mechanisms of poverty recurrence. Building upon this foundation, we developed an advanced poverty recurrence risk early warning system using a convolutional neural network-long short-term memory (CNN-LSTM) model. The system is optimized through mechanism-based predictions to better capture the dynamic changes in poverty recurrence. Empirical results demonstrated that the integrated dynamic monitoring and early warning system have significantly effective outcomes in addressing the recurrence of rural poverty. ABSTRACT dimensions methods Index foundation networklong network long shortterm short term CNNLSTM CNN LSTM (CNN-LSTM mechanismbased mechanism based

RESUMO: Este estudo adota uma perspectiva mais macroscópica para focar na questão da pobreza rural na China. Ao selecionar indicadores que refletem vários níveis de recorrência da pobreza, considerando factores de risco em múltiplas dimensões e empregando métodos avançados, construímos um novo indice de risco de recorrência da pobreza rural na China. Utilizamos um modelo de mudança de Markov para aprofundar os mecanismos de recorrência da pobreza. Com base nisso, desenvolvemos um sistema avançado de alerta precoce de risco de recorrência de pobreza usando um modelo de memória de longo e curto prazo de rede neural convolucional (CNN-LSTM). O sistema é optimizado através de previsões baseadas em mecanismos para melhor captar as mudanças dinâmicas na recorrência da pobreza. Os resultados empíricos demonstram que o sistema integrado de monitorização dinâmica e de alerta precoce tem resultados significativamente eficazes na abordagem da recorrência da pobreza rural. RESUMO China avançados nisso CNNLSTM. CNNLSTM CNN LSTM . (CNN-LSTM) (CNN-LSTM

ABSTRACT In the semi-arid climate, the growth of fruit seedlings is challenged by the water stress characteristic of the region, which can restrict their development and, consequently, affect production. In this context, the aim was to assess the effect of pyroligneous extract on gas exchange characteristics, photosynthetic pigments, growth, and biomass of pitanga under different intensities of water deficit. The experiment was conducted using a randomized block design in a 3 × 2 factorial scheme, with four replicates, corresponding to water deficit periods (7 and 14 days) and control (daily irrigation), in substrates with and without pyroligneous extract. The plants were evaluated for gas exchange characteristics, chlorophyll indices, growth, and dry biomass. Application of pyroligneous extract after 7 days of water deficit increased the photosynthetic rate, carboxylation efficiency and Dickson quality index of pitanga seedlings by 40.04, 42.85 and 41.51%, respectively, compared to 14 days of water deficit. Pyroligneous extract was effective as a water stress attenuator in pitanga seedlings, especially during the first seven days of exposure to stress. Therefore, its application is recommended as a preventive and short-term measure to mitigate such effects on pitanga seedlings. semiarid semi arid climate region consequently production context characteristics pigments scheme replicates ( 1 daily irrigation, irrigation , irrigation) indices rate 4004 40 04 40.04 4285 42 85 42.8 4151 41 51 41.51% respectively Therefore shortterm short term 400 4 0 40.0 428 8 42. 415 5 41.51 40. 41.5 41.

RESUMO No clima semiárido, o crescimento de mudas frutíferas é desafiado pelo estresse hídrico característico da região, o que pode restringir seu desenvolvimento e, consequentemente, afetar a produção. Nesse contexto, o objetivo foi avaliar o efeito do extrato pirolenhoso nas características de troca gasosa, pigmentos fotossintéticos, crescimento e biomassa de pitangueira sob diferentes intensidades de déficit hídrico. O experimento foi conduzido em casa de vegetação utilizando um delineamento em blocos casualizados em um esquema fatorial 3 × 2, com quatro repetições, correspondendo a períodos de déficit hídrico foram de 7 e 14 dias, além do controle (irrigação diária), no substrato sem e com extrato pirolenhoso. As plantas foram avaliadas quanto às características de trocas gasosas foliares, índices de clorofila, crescimento e biomassa seca. A aplicação de extrato pirolenhoso aos 7 dias de déficit hídrico elevou a taxa fotossintética, a eficiência de carboxilação e o índice de qualidade de Dickson das mudas de pitanga em 40,04, 42,85 e 41,51%, respectivamente, em comparação aos 14 dias de déficit hídrico. O extrato pirolenhoso foi efetivo como um atenuante do estresse hídrico nas mudas de pitanga, especialmente durante os primeiros sete dias de exposição ao estresse. Assim, sua aplicação é recomendada como uma medida preventiva e de curto prazo para mitigar tais efeitos nas mudas de pitanga. semiárido região consequentemente produção contexto gasosa fotossintéticos 2 repetições 1 irrigação diária, diária , diária) foliares clorofila seca fotossintética 4004 40 04 40,04 4285 42 85 42,8 4151 41 51 41,51% respectivamente Assim 400 4 0 40,0 428 8 42, 415 5 41,51 40, 41,5 41,

Abstract Introduction. Quinoa downy mildew is a disease that causes economic losses and has been poorly studied.Therefore, researching quinoa’s response to the disease and treatment methods is a topic that requires further investigation. Objective. To describe how downy mildew infection affects quinoa plants and the non-traditional methods used to control this disease. Development. A systematic search was conducted to compile the results associated with P. variabilis in quinoa (Chenopodium quinoa Wild.) under various conditions. The analysis determined that factors such as incidence, severity, and disease tolerance depended largely on the quinoa grain variety and altitude (along with its climatic conditions). Plant height and yield per hectare were influenced by soil conditions, pest and disease treatment, and the planting day. Conclusions. The incidence and severity of downy mildew depended on the quinoa variety used. Other factors such as altitude or humidity also influenced disease progression, with infection rates close to 90 % in high humidity environments. Non-conventional methods for treating downy mildew included plant infusions such as chamomile and garlic, showing positive short-term results; however, they did not surpass conventional treatments with chemical fungicides.

Resumen Introducción. El mildiu de la quinua es una enfermedad que ocasiona pérdidas económicas y que ha sido poco estudiada, por lo que la investigación de la respuesta de la quinua a la enfermedad y las formas de tratamiento es un tema que debe investigarse con mayor profundidad. Objetivo. Describir cómo afecta la infección del mildiu velloso en la planta de la quinua y los métodos no tradicionales empleados en el control de esta enfermedad. Desarrollo. Se realizó una búsqueda sistemática a fin de realizar una recopilación de los resultados asociados al P. variabilis en la quinua (Chenopodium quinoa Wild.) en diversas condiciones. El análisis determinó que factores como la incidencia, la severidad y la tolerancia a la enfermedad del mildiu, dependieron en gran medida de la variedad de grano de quinua y la altitud (con sus condiciones climáticas). La altura de la planta y el rendimiento por hectárea estuvieron influenciados por las condiciones del suelo, el tratamiento empleado contra plagas y patógenos, y el día de siembra. Conclusiones. La incidencia y la severidad del mildiu velloso dependió de la variedad de la quinua con la que se trabajó. Otros factores como la altitud o la humedad también influyeron en el progreso de la enfermedad, con una infección cercana al 90 % en ambientes con alta humedad. Los métodos no convencionales para tratar el mildiu fueron infusiones de plantas como la manzanilla y el ajo, con resultados positivos a corto plazo; no obstante, no superaron a los tratamientos convencionales con fungicidas químicos.

Resumen El acceso equitativo y permanente a servicios públicos no siempre es una prioridad para la gestión local, en especial en territorios y poblaciones históricamente rezagadas. Esta contribución sostiene que en Copoya, localidad mayoritariamente ejidal de la Zona Metropolitana de Tuxtla Gutiérrez, el servicio estatal y comunitario por el suministro de agua potable no es eficiente. El problema se agudizó con el crecimiento urbano y la demanda por la tierra durante el siglo XX. A partir de entrevistas, recorridos de campo y notas de prensa, se destaca que la escasez del líquido lleva a sus residentes a buscar alternativas como la compra de pipas, pozos de traspatio y sistemas de agua no tratada que no resuelven el tema de fondo y que profundizan la pobreza y la desigualdad socioterritorial. Se concluye que la inexistencia de proyectos de inversión no permite una salida para el abastecimiento en el corto y mediano plazo.

Abstract Equitable and permanent access to public services is not always a priority for local management, especially in those territories and historically neglected populations. This contribution argues that in Copoya, a mostly ejido locality in the Metropolitan Zone of Tuxtla Gutiérrez, state and community service for drinking water supply is inefficient. The situation has worsened with urban growth and demand for land throughout the twentieth century. Interviews, field visits and press releases show that residents, due to the lack of water, look for alternatives such as purchasing pipes, backyard wells and untreated water systems. These alternatives do not solve the underlying issue and deepen their poverty and socio-territorial inequality. The article concludes that poor investment in projects does not allow a solution for the supply in the short and medium term.

RESUMEN A partir del primer trimestre del 2020 las economías de todo el mundo iniciaron una desaceleración en su actividad debido al confinamiento generado por la pandemia del COVID-19. En varias economías, se implementaron políticas monetarias y fiscales expansivas para tratar de evitar una caída drástica del desempleo y la producción. El objetivo de este trabajo es analizar la relación entre los niveles de inflación y desempleo al inicio de la pandemia, tanto de México, como de Estados Unidos de Norteamérica y, evaluar si existe una diferencia de dicha relación entre ambos países. Se utilizaron datos mensuales de la inflación y el desempleo desde enero de 2016 a diciembre 2020, considerando un Modelo Aditivo Generalizado (MAG) para estudiar la relación entre la inflación y el desempleo en ambos países. Los resultados esperados sugerirían la existencia evidente de la curva de Phillips en el corto plazo en Estados Unidos, no así en México, por lo que no justificaría en este último una política fiscal expansiva para estimular la economía. Se concluye que políticas económicas ortodoxas para estimular a la economía y disminuir el desempleo no forzosamente tendrían los efectos esperados en el caso de México y sí en un incremento de precios. Código JEL: E24; E31; E63.

ABSTRACT As of the first quarter of 2020, economies around the world began a slowdown in their activity due to the confinement generated by the COVID-19 pandemic. In several economies, expansionary monetary and fiscal policies were implemented to try to avoid a drastic drop in unemployment and production. The objective of the work is to analyze the relationship between the levels of inflation and unemployment at the beginning of the pandemic, both in Mexico and in the United States of America, and to assess whether there is a difference in said relationship between both countries. Monthly inflation and unemployment data were used from January 2016 to December 2020, considering a Generalized Additive Model (MAG) to study the relationship between inflation and unemployment in both countries. The expected results would suggest the evident existence of the Phillips curve in the short term in the United States, but not in Mexico, so it would not justify an expansive fiscal policy in the latter to stimulate the economy. It is concluded that orthodox economic policies to stimulate the economy and reduce unemployment would not necessarily have the expected effects in the case of Mexico but would have an increase in prices. Código JEL: E24; E31; E63.

RESUMO Considerando a carência de trabalhos sobre as potencialidades dos ambientes imersivos na educação, este artigo busca investigar a relevância da Realidade Aumentada no ensino e aprendizagem de vocabulário em inglês como língua estrangeira a curto e longo prazo. Investiga-se também os efeitos deste ambiente imersivo em alunos com diferentes níveis de proficiência, a saber: níveis elementar e intermediário. No âmbito teórico, o estudo é fundamentado nos pressupostos da Teoria da Cognição Corporifica que concebe a mente e nossas experiências corporais com o mundo externo elementos centrais no processamento e aquisição de conhecimento. No âmbito metodológico, o ambiente em Realidade Aumentada usado na presente pesquisa foi aplicado a 15 alunos do Ensino Técnico Integrado ao Ensino Médio do IFRJ, campus Eng. Paulo de Frontin e os dados obtidos foram gerados por meio de testes de vocabulário e questionário. Os resultados indicam que o ambiente em Realidade Aumentada pode contribuir significativamente para o aprendizado de vocabulário tanto a curto quanto a longo prazo, com destaque para os alunos de nível intermediário que foram os que mais se beneficiaram do ambiente testado. educação prazo Investigase Investiga proficiência saber teórico conhecimento metodológico 1 IFRJ Eng questionário testado

ABSTRACT Considering the need for studies on the potential of immersive environments in education, this paper aims to investigate the relevance of Augmented Reality in ESL/EFL in the shortand long-term vocabulary learning. It also investigates the effects of this immersive environment on students with different proficiency levels, elementary and intermediate levels. Theoretically, the study is based on the assumptions of the Embodied Cognition theory, which considers the mind and our bodily experiences with the external world as central elements in the processing and acquisition of knowledge. In the methodological scope, the Augmented Reality environment used in this research was applied to 15 students of Ensino Técnico Integrado ao Ensino Médio do IFRJ, campus Eng. Paulo de Frontin and the data collected were generated through vocabulary tests and a questionnaire. The results indicate that the Augmented Reality environment can significantly contribute to vocabulary learning in the short and long term, especially for intermediate level students who benefited the most from the tested environment. education ESLEFL ESL EFL longterm term levels Theoretically theory knowledge scope 1 IFRJ Eng questionnaire

Abstract The Galapagos Islands, a natural heritage of humanity, have meticulous control of wildlife and strict inspection of the number and frequency of visitors. The increase in tourists, apart from positive aspects, and the increase in population generates a greater demand for electrical energy. In this sense, Galapagos seeks a boost to comprehensive energy sustainability, replacing thermal energy with environmentally friendly Non-Conventional Renewable Energy (NCRE), through the optimal energy management project through the Conolophus microgrid project. This document analyzes the optimal management of electrical energy (short-term economic dispatch) considering the stochasticity presented by the high insertion of NCRE in the Santa Cruz-Baltra electrical system. For it. The free simulation software called “SimSEE” (Electric Energy Systems Simulator) is used, where operational scenarios are modeled with and without the Conolophus project in order to analyze its impact on the planning of the operation of the Santa Cruz-Baltra system.

Resumen: Las islas Galápagos, patrimonio natural de la humanidad, cuentan con un control minucioso de la vida silvestre y ejercen estricta inspección del número y frecuencia de visitantes. El incremento de turistas, aparte de aspectos positivos, y el incremento de la población genera una mayor demanda de energía eléctrica. En este sentido, Galápagos busca un impulso a la sostenibilidad energética integral, reemplazando la energía térmica con Energías Renovables No Convencionales (ERNC), amigables con el medio ambiente, a través del proyecto de gestión óptima de la energía mediante el proyecto de microrred Conolophus. En el presente documento se analiza la gestión óptima de la energía eléctrica (despacho económico de corto plazo) considerando la estocasticidad que presenta la alta inserción de ERNC en el sistema eléctrico Santa Cruz-Baltra. Para ello. se usa el software libre de simulación denominado “SimSEE” (Simulador de Sistemas de Energía Eléctrica), donde se modelan escenarios operativos con y sin el proyecto Conolophus con la finalidad de analiza su impacto en la planificación de la operación del sistema Santa Cruz-Baltra.

Abstract: Smart Grids have revolutionized the electricity industry by enabling more efficient control and monitoring of the electricity supply, with a key component being smart meters (SM). These collect information on demand, energy, and harmonic distortion, among others, which must be stored and managed efficiently in a metering data management system (MDMS). The MDMS must ensure that a complete set of data is obtained for use in algorithms to ensure the reliability and quality of the power supply. To address the challenge of management the big data generated by SM, short, medium, and long-term measurement forecasting techniques have been proposed, highlighting the use of artificial intelligence such as Artificial Neural Networks (ANN) and Deep Learning (DL) methods due to their ability to adapt to different input and output variables with various time horizons. In addition, the influence of the diversity of Information and Communication Technologies (ICT) on the update time and data storage in the MDMS is highlighted. In this sense, this work aims to identify which ANN or DL architecture(s) could be more suitable for enterprise, survey, or research applications, demonstrating favorable performance metrics in different scenarios of sampling frequency and typical data update times in Smart Grids. This is relevant due to the need for MDMS to perform multivariate and multi-pass predictions in the short term to complete the information until the information is available or updated.

Resumen: Las Redes Eléctricas Inteligentes de Distribución (REID) han revolucionado la industria eléctrica al permitir un control y monitoreo más eficiente del suministro eléctrico, con un componente clave siendo los medidores inteligentes (SM). Estos recopilan información sobre la demanda, energía, distorsión armónica, entre otros, que deben ser almacenados y gestionados eficientemente en un sistema de gestión de datos de medición (MDMS). El MDMS debe garantizar la obtención de un conjunto completo de datos para su uso en algoritmos que aseguren la confiabilidad y calidad del suministro eléctrico. Para abordar el desafío de gestionar la gran cantidad de datos generados por los SM, se han propuesto diferentes técnicas de predicción de mediciones a corto, mediano y largo plazo, destacando el uso de inteligencia artificial como las Redes Neuronales Artificiales (ANN) y métodos de Aprendizaje Profundo (DL) debido a su capacidad de adaptación a diferentes variables de entrada y salida con diversos horizontes temporales. Además, se destaca la influencia de la diversidad de Tecnologías de la Información y Comunicación (TIC) en el tiempo de actualización y almacenamiento de datos en un MDMS. En este sentido, este trabajo tiene como objetivo identificar qué arquitectura o arquitecturas de ANN o DL podrían ser más adecuadas para aplicaciones en empresas, estudios o investigaciones, demostrando métricas de rendimiento favorables en diferentes escenarios de frecuencia de muestreo y tiempos de actualización de datos típicos en un REID. Esto es relevante debido a la necesidad del MDMS de realizar predicciones multivariables y multipaso a corto plazo para completar la información, hasta que la misma esté disponible o se actualice.

SUMMARY: Simple hepatic cysts of the liver (SHCL) are incidentally detected in the liver, and may be solitary or multiple. There is sufficient evidence supporting the role of laparoscopic surgery in the treatment of these lesions. The aim of this study was to report the outcomes of laparoscopic treatment in patients with BSHCs in terms of postoperative complications (POC). Case series.All patients who underwent laparoscopic surgery for BSLC at RedSalud Mayor Clinic between January 2013 and December 2023 were included. Preoperative assessment consisted of general examinations, determination of ELISA-IgE and IgG for hydatidosis, abdominal ultrasound or computed tomography. The outcome variable was the development of postoperative complications (POCs). Descriptive statistics were used. During the study period, 22 patients with BSLC were operated, resecting them a total of 34 cysts. The median age of the series was 59 years, and 81.8 % of patients were female. The median sonographic diameter of the lesions was 9 cm. Subtotal pericystectomy was performed in all of them, without using drainage. In 45.4 % of cases simultaneously cholecystectomy for coexistent cholelithiasis was performed. The median operative time was 52 minutes. No patients needed to be converted. The series does not register POC or mortality. The median hospital stay was 1 day. The histopathological study confirmed "biliary type cyst" in all cases. With a minimum follow-up of 6 months, no late postoperative complications or recurrence of the resected lesions have been observed. The treatment applied to this series of cases was associated with a short hospital stay and good short- and medium-term outcomes.

RESUMEN: Los quistes hepáticos benignos simples del hígado (QHBSH) se detectan de forma incidental, pudiendo ser únicos o múltiples. Existe suficiente evidencia que avala el rol de la cirugía laparoscópica en el tratamiento de estas lesiones. El objetivo de este estudio fue informar los resultados del tratamiento laparoscópico en pacientes con QHBSH en términos de complicaciones postoperatorias (CPO). Serie de casos. Se incluyeron todos los pacientes intervenidos quirúrgicamente vía laparoscópica por QHBSH en la Clínica RedSalud Mayor entre enero de 2013 y diciembre de 2023. El estudio preoperatorio consistió en exámenes generales, determinación de ELISA-IgE e IgG para hidatidosis, ecotomografía abdominal o tomografía computarizada. La variable resultado fue desarrollo de CPO. Se utilizó estadística descriptiva. En el período estudiado, se intervinieron 22 pacientes con QHBSH, resecándose en ellos, un total de 34 quistes. El 81,8 % de los casos eran de sexo femenino; y la mediana de edad de la serie fue de 59 años. La mediana del diámetro ecográfico de las lesiones fue de 9 cm. Se realizó periquistectomía subtotal en todos ellos, sin utilización de drenaje. En el 45,4 % de los casos se ejecutó de forma simultánea una colecistectomía por colelitiasis coexistente. La mediana del tiempo quirúrgico fue de 52 minutos. No fue necesario convertir a ningún paciente. La serie no registra CPO ni mortalidad. La mediana de estancia hospitalaria fue de 1 día. El estudio histopatológico confirmó “quiste de tipo biliar” en la totalidad de los casos. Con un seguimiento mínimo de 6 meses, no se ha evidenciado CPO tardía ni reaparición de las lesiones resecadas. El tratamiento aplicado a esta serie de casos se asoció a escasa estancia hospitalaria y buena evolución a corto y mediano plazo.

RESUMO A região Nordeste do Brasil é caracterizada por clima tropical e altas temperaturas do ar em curto ou longo prazo, o que pode afetar negativamente o crescimento e os processos fisiológicos do morangueiro (Fragaria x ananassa Duch). Nesse contexto, para mitigar os impactos do estresse térmico, destaca-se a necessidade de empregar variedades adaptadas e tecnologias, como uso de condicionadores de solo. Assim, o objetivo deste estudo foi avaliar as respostas fisiológicas e o índice térmico de cultivares de morango cultivadas sob doses de hidrogel no substrato. O estudo foi conduzido em ambiente protegido em Guaraciaba do Norte, Ceará, Brasil, utilizando delineamento experimental em blocos casualizados com quatro repetições, em arranjo fatorial 5 × 2 composto por cinco doses de hidrogel no substrato (0, 1, 2, 3, e 4 g L-1) e duas cultivares de morango (‘Albion’ e ‘San Andreas’). As variáveis de crescimento (número de folhas, diâmetro da coroa e altura das plantas) foram avaliadas aos 15 e 45 dias após o transplantio (DAT). As trocas gasosas (condutância estomática, taxa de transpiração, taxa de assimilação de CO2 e concentração intercelular de CO2), índices fisiológicos (eficiência intrínseca do uso da água, eficiência instantânea de carboxilação e eficiência instantânea do uso da água) e índice térmico foram avaliados aos 90 DAT. prazo Fragaria Duch. Duch . Duch) contexto destacase destaca se tecnologias solo Assim Norte Ceará repetições 0, 0 (0 1 3 L1 L L-1 ‘Albion Albion (‘Albion San Andreas. Andreas Andreas’) número folhas plantas DAT (DAT) condutância estomática transpiração CO CO2, , CO2) água 9 ( L- Andreas’ (DAT

ABSTRACT The Northeast region of Brazil is characterized by a tropical climate and high air temperatures, which can negatively affect the growth and physiological processes of strawberry plants (Fragaria x ananassa Duch) in the short- or long-term. In this context, the use of adapted varieties and technologies such as soil conditioners is necessary. Thus, the objective of this study was to assess the physiological responses and the thermal index of strawberry cultivars grown under hydrogel doses in the substrate. The study was conducted in a protected environment in Guaraciaba do Norte, Ceará state, Brazil, using a randomized block experimental design with four replicates, in a 5 × 2 factorial arrangement consisting of five hydrogel doses in the substrate (0, 1, 2, 3, and 4 g L-1) and two strawberry cultivars (‘Albion’ and ‘San Andreas’). Growth variables (number of leaves, crown diameter, and plant height) were evaluated at 15 and 45 days after transplanting (DAT). Gas exchanges (stomatal conductance, transpiration rate, CO2 assimilation rate, and intercellular CO2 concentration), physiological indices (intrinsic water use efficiency, instantaneous carboxylation efficiency, and instantaneous water use efficiency), and thermal index were evaluated at 90 DAT. Strawberry plant growth increased significantly as the hydrogel dose in the substrate was increased. The hydrogel dose of 4 g L-1 reduced gas exchanges at 90 DAT, regardless of the cultivar. Plants of the cultivar San Andreas showed higher intrinsic water use efficiency and lower thermal index when grown under the hydrogel dose of 4 g L-1. temperatures Fragaria Duch short longterm. longterm long term. term long-term context necessary Thus Norte state replicates 0, 0 (0 1 3 L1 L ‘Albion Albion (‘Albion Andreas. . Andreas’) number leaves diameter height DAT (DAT) stomatal conductance rate CO concentration, concentration , concentration) efficiency) 9 L- L1. 1. ( Andreas’ (DAT

Abstract When studying ancient historical processes, we are faced with the problem of chronology, since the confidence intervals of radiocarbon dates are too wide, as are the lifetimes of particular types of artifacts. A solution to the problem may be to study the appearance of new cultures as a result of migration. Climate changes were the most important factor that stimulated migration in antiquity. It was they which led to the appearance of monuments of the megalithic tradition in the Northwestern Black Sea region (Usatovo), in the North Caucasus (Novosvobodnaya), in the Urals, and in Central Asia (Chemurchek) in the 4th - 3rd millennia B.C. This also caused the spread of the tradition of Yamnaya culture to Central Europe, the appearance of the Corded Ware cultures and many other changes. However, the general process of climate change could not be a trigger for migrations. These were short-term drastic climatic changes, which are recorded by dendrochronology. The latter can also be used as chronological markers, making it possible to create the Eurasian chronology independent of radiocarbon analyses, which have too wide confidence intervals. This approach made it possible to determine the date of the Yamnaya migration to the Carpathian Basin and the formation of the Corded Ware cultures ca. 2910/2850 B.C., and the date of the Fatyanovo migration from Europe to the east ca. 2564 B.C. Unfortunately, the dates of the appearance of megaliths in the east are not determined with a similar accuracy, due to the impossibility to verify this with alternative sources. Their appearance can be dated to ca. the mid-4th millennium B.C. in Eastern Europe, in the last quarter of the 4th millennium B.C. in the Urals, and in the 25th century B.C. in Central Asia.

Resumen Al estudiar los procesos históricos de la antigüedad, enfrentamos el problema de la cronología, ya que los intervalos de confianza de las fechas de radiocarbono son demasiado amplios, al igual que los tiempos de vida de determinados tipos de artefactos. Una solución puede ser estudiar la aparición de nuevas culturas como resultado de migraciones. Al respecto, los cambios climáticos fueron uno de los estímulos más importantes de las mismas en la Antigüedad. El clima permite explicar la aparición de monumentos de tradición megalítica en la región noroccidental del Mar Negro (Usatovo), en el Cáucaso septentrional (Novosvobodnaya), en los Urales y en Asia central (Chemurchek) entre el cuarto y tercer milenio a.C., y también la propagación de la cultura Yamnaya en Europa central, la aparición de las culturas de la Cerámica Cordada (“Corded Ware”), entre otros cambios. Sin embargo, el proceso general de cambio climático no pudo ser el desencadenante de las migraciones, sino que estas fueron fomentadas por cambios climáticos drásticos a corto plazo registrados por la dendrocronología. Las ventajas de la aproximación dendrocronológica es que puede utilizarse como proxy temporal, de manera independiente a los análisis de radiocarbono, los cuales tienen intervalos de confianza demasiado amplios. El enfoque dendrocronológico permitió determinar la fecha de la migración Yamnaya a la cuenca de los Cárpatos y la formación de las culturas de la Cerámica Cordada hacia ca. 2910-2850 a.C., y la fecha de la migración Fatyanovo desde Europa central hacia el Este hacia ca. 2564 a.C. Desgraciadamente, las fechas de aparición de los megalitos en el Este no se determinan con una precisión similar, debido a la imposibilidad de verificarlo con fuentes alternativas. Su aparición puede fecharse hacia mediados del cuarto milenio a.C. en Europa Oriental, en los últimos siglos del cuarto milenio a.C. en los Urales y hacia mediados del tercer milenio a.C. en Asia Central.

Abstract Introduction: Living donor kidney transplantation is considered the ideal renal replacement therapy because it has a lower complication rate and allows an efficient response to the high demand for grafts in the healthcare system. Careful selection and adequate monitoring of donors is a key element in transplantation. Individuals at greater risk of developing kidney dysfunction after nephrectomy must be identified. Objective: To identify risk factors associated with a renal compensation rate (CR) below 70% 12 months after nephrectomy. Methods: This observational retrospective longitudinal study included living kidney donors followed up at the Lower Amazon Regional Hospital between 2016 and 2022. Data related to sociodemographic variables, comorbid conditions and kidney function parameters were collected. Results: The study enrolled 32 patients. Fourteen (43.75%) had a CR < 70% 12 months after kidney donation. Logistic regression found obesity (Odds Ratio [95%CI]: 10.6 [1.7–65.2]), albuminuria (Odds Ratio [95%CI]: 2.41 [1.2–4.84]) and proteinuria (Odds Ratio [95%CI]: 1.14 [1.03–1.25]) as risk factors. Glomerular filtration rate was a protective factor (Odds Ratio [95% CI]: 0.92 [0.85–0.99]). Conclusion: Obesity, albuminuria and proteinuria adversely affected short-term renal compensation rate. Further studies are needed to uncover the prognostic implications tied to these risk factors. Our findings also supported the need for careful individualized assessment of potential donors and closer monitoring of individuals at higher risk. Introduction system identified Objective (CR 70 1 Methods 201 2022 variables collected Results 3 patients 43.75% 4375 43 75 (43.75% donation Odds 95%CI 95CI CI 95 [95%CI] 106 10 6 10. 1.7–65.2, 17652 1.7–65.2 , 7 65 2 [1.7–65.2]) 241 41 2.4 1.2–4.84 12484 4 84 [1.2–4.84] 114 14 1.1 1.03–1.25 103125 03 25 [1.03–1.25] 95% [95 CI] 092 0 92 0.9 0.85–0.99. 085099 0.85–0.99 . 85 99 [0.85–0.99]) Conclusion Obesity shortterm short term 20 202 43.75 437 (43.75 9 [95%CI 1765 1.7–65. [1.7–65.2] 24 2. 1.2–4.8 1248 8 [1.2–4.84 11 1. 1.03–1.2 10312 [1.03–1.25 [9 09 0. 08509 0.85–0.9 [0.85–0.99] 43.7 (43.7 176 1.7–65 [1.7–65.2 1.2–4. 124 [1.2–4.8 1.03–1. 1031 [1.03–1.2 [ 0850 0.85–0. [0.85–0.99 43. (43. 17 1.7–6 [1.7–65. 1.2–4 [1.2–4. 1.03–1 103 [1.03–1. 085 0.85–0 [0.85–0.9 (43 1.7– [1.7–65 1.2– [1.2–4 1.03– [1.03–1 08 0.85– [0.85–0. (4 1.7 [1.7–6 1.2 [1.2– 1.03 [1.03– 0.85 [0.85–0 ( [1.7– [1.2 1.0 [1.03 0.8 [0.85– [1.7 [1. [1.0 [0.85 [1 [0.8 [0. [0

Resumo Introdução: O transplante de rim de doador vivo é considerado a terapia renal substitutiva ideal por oferecer menor taxa de complicações e possibilitar uma resposta eficiente à grande demanda por enxertos no sistema de saúde. A seleção criteriosa e o acompanhamento adequado dos doadores constituem um pilar fundamental dessa modalidade terapêutica, sendo essencial a identificação dos indivíduos em maior risco de disfunção renal pós-nefrectomia. Objetivo: Identificar fatores de risco para uma Taxa de Compensação (TC) da função renal inferior a 70% 12 meses após a nefrectomia. Métodos: Estudo observacional, retrospectivo e longitudinal conduzido com doadores de rim vivo acompanhados no Hospital Regional do Baixo Amazonas entre 2016 e 2022. Foram coletados dados correspondentes a variáveis sociodemográficas, comorbidades e parâmetros de função renal. Resultados: Foram incluídos 32 pacientes na amostra final. Destes, 14 (43,75%) obtiveram TC < 70% 12 meses após a doação. A regressão logística identificou a obesidade (Odds Ratio [IC95%]: 10.6 [1.7–65.2]), albuminúria (Odds Ratio [IC95%]: 2.41 [1.2–4.84]) e proteinúria (Odds Ratio [IC95%]: 1.14 [1.03–1.25]) como fatores de risco. A taxa de filtração glomerular atuou como fator de proteção (Odds Ratio [IC95%]: 0.92 [0.85–0.99]). Conclusão: Obesidade, albuminúria e proteinúria demonstraram impacto negativo na taxa de compensação renal em curto prazo, o que reitera a necessidade de estudos acerca das implicações prognósticas desses fatores. Além disso, reforça-se a necessidade de avaliação cuidadosa e individualizada dos possíveis doadores, com acompanhamento rigoroso, especialmente para indivíduos de maior risco. Introdução saúde terapêutica pósnefrectomia. pósnefrectomia pós nefrectomia pós-nefrectomia Objetivo (TC 70 1 Métodos observacional 201 2022 sociodemográficas Resultados 3 final Destes 43,75% 4375 43 75 (43,75% doação Odds IC95% IC95 IC [IC95%] 106 10 6 10. 1.7–65.2, 17652 1.7–65.2 , 7 65 2 [1.7–65.2]) 241 41 2.4 1.2–4.84 12484 4 84 [1.2–4.84] 114 1.1 1.03–1.25 103125 03 25 [1.03–1.25] 092 0 92 0.9 0.85–0.99. 085099 0.85–0.99 . 85 99 [0.85–0.99]) Conclusão Obesidade prazo disso reforçase reforça se rigoroso 20 202 43,75 437 (43,75 IC9 [IC95% 1765 1.7–65. [1.7–65.2] 24 2. 1.2–4.8 1248 8 [1.2–4.84 11 1. 1.03–1.2 10312 [1.03–1.25 09 9 0. 08509 0.85–0.9 [0.85–0.99] 43,7 (43,7 [IC95 176 1.7–65 [1.7–65.2 1.2–4. 124 [1.2–4.8 1.03–1. 1031 [1.03–1.2 0850 0.85–0. [0.85–0.99 43, (43, [IC9 17 1.7–6 [1.7–65. 1.2–4 [1.2–4. 1.03–1 103 [1.03–1. 085 0.85–0 [0.85–0.9 (43 [IC 1.7– [1.7–65 1.2– [1.2–4 1.03– [1.03–1 08 0.85– [0.85–0. (4 1.7 [1.7–6 1.2 [1.2– 1.03 [1.03– 0.85 [0.85–0 ( [1.7– [1.2 1.0 [1.03 0.8 [0.85– [1.7 [1. [1.0 [0.85 [1 [0.8 [ [0. [0

Resumen Los efectos desfavorables de las condiciones meteorológicas sobre la salud de la población cubana están aumentando en frecuencia e intensidad, debido a los impactos ya visibles del cambio climático sobre Cuba, problema que demanda realizar la evaluación de la vulnerabilidad de la población cubana ante los peligros regionales asociados a los procesos meteorológicos que influyen sobre el país. Se realiza una adaptación de la metodología utilizada en Cuba para los estudios de peligro, vulnerabilidad y riesgo, aplicada en este caso a la estimación del riesgo meteoro-trópico, a partir de establecer la línea base de la mortalidad general diaria en exceso para el período 2001-2020, como indicador de la vulnerabilidad de las poblaciones residentes en las mitades occidental y oriental de Cuba; para después estimar el peligro asociado a los procesos sinópticos de escala global y regional que influyen sobre esas mismas porciones del territorio. Se demuestra que existe una relación bien definida entre la mortalidad en exceso y los peligros analizados, lo cual permitió estimar satisfactoriamente la magnitud del riesgo meteoro-trópico diario y llegar a un modelo estadístico que facilita su pronóstico a corto plazo. Se comprueba la génesis meteoro-trópica de los días con mayor mortalidad en exceso, tanto en invierno como en verano, demostrando el relevante papel que tienen algunos procesos y condiciones meteorológicas sobre la salud de la población cubana, hecho que justifica la necesidad de su pronóstico y mitigación.

Abstract The unfavorable effects of meteorological conditions on the health of the Cuban population are increasing in frequency and intensity, due to the already visible impacts of climate change on Cuba, a problem that demands an evaluation of the vulnerability of the Cuban population to regional dangers. Associated with the meteorological processes that influence the country. An adaptation of the methodology used in Cuba for studies of danger, vulnerability and risk is carried out, applied in this case to the estimation of meteor-tropic risk, based on establishing the baseline of the general daily excess mortality for the period. 2001-2020, as an indicator of the vulnerability of the populations residing in the western and eastern halves of Cuba; to then estimate the danger associated with global and regional synoptic processes that influence those same portions of the territory. It is demonstrated that there is a well-defined relationship between excess mortality and the hazards analyzed, which allowed us to satisfactorily estimate the magnitude of the daily meteor-tropic risk and arrive at a statistical model that facilitates its short-term forecast. The meteor-tropic genesis of the days with the highest excess mortality is verified, both in winter and summer, demonstrating the relevant role that some meteorological processes and conditions have on the health of the Cuban population, a fact that justifies the need for its forecast and mitigation.

Abstract Introduction: Living donor kidney transplantation is considered the ideal renal replacement therapy because it has a lower complication rate and allows an efficient response to the high demand for grafts in the healthcare system. Careful selection and adequate monitoring of donors is a key element in transplantation. Individuals at greater risk of developing kidney dysfunction after nephrectomy must be identified. Objective: To identify risk factors associated with a renal compensation rate (CR) below 70% 12 months after nephrectomy. Methods: This observational retrospective longitudinal study included living kidney donors followed up at the Lower Amazon Regional Hospital between 2016 and 2022. Data related to sociodemographic variables, comorbid conditions and kidney function parameters were collected. Results: The study enrolled 32 patients. Fourteen (43.75%) had a CR < 70% 12 months after kidney donation. Logistic regression found obesity (Odds Ratio [95%CI]: 10.6 [1.7–65.2]), albuminuria (Odds Ratio [95%CI]: 2.41 [1.2–4.84]) and proteinuria (Odds Ratio [95%CI]: 1.14 [1.03–1.25]) as risk factors. Glomerular filtration rate was a protective factor (Odds Ratio [95% CI]: 0.92 [0.85–0.99]). Conclusion: Obesity, albuminuria and proteinuria adversely affected short-term renal compensation rate. Further studies are needed to uncover the prognostic implications tied to these risk factors. Our findings also supported the need for careful individualized assessment of potential donors and closer monitoring of individuals at higher risk. Introduction system identified Objective (CR 70 1 Methods 201 2022 variables collected Results 3 patients 43.75% 4375 43 75 (43.75% donation Odds 95%CI 95CI CI 95 [95%CI] 106 10 6 10. 1.7–65.2, 17652 1.7–65.2 , 7 65 2 [1.7–65.2]) 241 41 2.4 1.2–4.84 12484 4 84 [1.2–4.84] 114 14 1.1 1.03–1.25 103125 03 25 [1.03–1.25] 95% [95 CI] 092 0 92 0.9 0.85–0.99. 085099 0.85–0.99 . 85 99 [0.85–0.99]) Conclusion Obesity shortterm short term 20 202 43.75 437 (43.75 9 [95%CI 1765 1.7–65. [1.7–65.2] 24 2. 1.2–4.8 1248 8 [1.2–4.84 11 1. 1.03–1.2 10312 [1.03–1.25 [9 09 0. 08509 0.85–0.9 [0.85–0.99] 43.7 (43.7 176 1.7–65 [1.7–65.2 1.2–4. 124 [1.2–4.8 1.03–1. 1031 [1.03–1.2 [ 0850 0.85–0. [0.85–0.99 43. (43. 17 1.7–6 [1.7–65. 1.2–4 [1.2–4. 1.03–1 103 [1.03–1. 085 0.85–0 [0.85–0.9 (43 1.7– [1.7–65 1.2– [1.2–4 1.03– [1.03–1 08 0.85– [0.85–0. (4 1.7 [1.7–6 1.2 [1.2– 1.03 [1.03– 0.85 [0.85–0 ( [1.7– [1.2 1.0 [1.03 0.8 [0.85– [1.7 [1. [1.0 [0.85 [1 [0.8 [0. [0

Resumo Introdução: O transplante de rim de doador vivo é considerado a terapia renal substitutiva ideal por oferecer menor taxa de complicações e possibilitar uma resposta eficiente à grande demanda por enxertos no sistema de saúde. A seleção criteriosa e o acompanhamento adequado dos doadores constituem um pilar fundamental dessa modalidade terapêutica, sendo essencial a identificação dos indivíduos em maior risco de disfunção renal pós-nefrectomia. Objetivo: Identificar fatores de risco para uma Taxa de Compensação (TC) da função renal inferior a 70% 12 meses após a nefrectomia. Métodos: Estudo observacional, retrospectivo e longitudinal conduzido com doadores de rim vivo acompanhados no Hospital Regional do Baixo Amazonas entre 2016 e 2022. Foram coletados dados correspondentes a variáveis sociodemográficas, comorbidades e parâmetros de função renal. Resultados: Foram incluídos 32 pacientes na amostra final. Destes, 14 (43,75%) obtiveram TC < 70% 12 meses após a doação. A regressão logística identificou a obesidade (Odds Ratio [IC95%]: 10.6 [1.7–65.2]), albuminúria (Odds Ratio [IC95%]: 2.41 [1.2–4.84]) e proteinúria (Odds Ratio [IC95%]: 1.14 [1.03–1.25]) como fatores de risco. A taxa de filtração glomerular atuou como fator de proteção (Odds Ratio [IC95%]: 0.92 [0.85–0.99]). Conclusão: Obesidade, albuminúria e proteinúria demonstraram impacto negativo na taxa de compensação renal em curto prazo, o que reitera a necessidade de estudos acerca das implicações prognósticas desses fatores. Além disso, reforça-se a necessidade de avaliação cuidadosa e individualizada dos possíveis doadores, com acompanhamento rigoroso, especialmente para indivíduos de maior risco. Introdução saúde terapêutica pósnefrectomia. pósnefrectomia pós nefrectomia pós-nefrectomia Objetivo (TC 70 1 Métodos observacional 201 2022 sociodemográficas Resultados 3 final Destes 43,75% 4375 43 75 (43,75% doação Odds IC95% IC95 IC [IC95%] 106 10 6 10. 1.7–65.2, 17652 1.7–65.2 , 7 65 2 [1.7–65.2]) 241 41 2.4 1.2–4.84 12484 4 84 [1.2–4.84] 114 1.1 1.03–1.25 103125 03 25 [1.03–1.25] 092 0 92 0.9 0.85–0.99. 085099 0.85–0.99 . 85 99 [0.85–0.99]) Conclusão Obesidade prazo disso reforçase reforça se rigoroso 20 202 43,75 437 (43,75 IC9 [IC95% 1765 1.7–65. [1.7–65.2] 24 2. 1.2–4.8 1248 8 [1.2–4.84 11 1. 1.03–1.2 10312 [1.03–1.25 09 9 0. 08509 0.85–0.9 [0.85–0.99] 43,7 (43,7 [IC95 176 1.7–65 [1.7–65.2 1.2–4. 124 [1.2–4.8 1.03–1. 1031 [1.03–1.2 0850 0.85–0. [0.85–0.99 43, (43, [IC9 17 1.7–6 [1.7–65. 1.2–4 [1.2–4. 1.03–1 103 [1.03–1. 085 0.85–0 [0.85–0.9 (43 [IC 1.7– [1.7–65 1.2– [1.2–4 1.03– [1.03–1 08 0.85– [0.85–0. (4 1.7 [1.7–6 1.2 [1.2– 1.03 [1.03– 0.85 [0.85–0 ( [1.7– [1.2 1.0 [1.03 0.8 [0.85– [1.7 [1. [1.0 [0.85 [1 [0.8 [ [0. [0

Abstract Introduction. Gastric cancer in Colombia is the second most common neoplasm in men and the fourth in women. In recent years, the benefits of the laparoscopic approach in gastric cancer against bleeding, postoperative recovery com and complications have been widely described, without affecting oncological results. Methods. Retrospective observational study of patients undergoing laparoscopic gastrectomy at the Clínica Universitaria Colombia over a period of ten years, between 2013 and 2023. Perioperative results were described in terms of hospital stay, operative bleeding, duration of the procedure, complications, causes of reintervention, and mortality in the first 30 days. Results. 418 patients were included, 58.9% men, with an average age of 60.88 years. An average surgical time of 228.7 minutes was documented, with a blood loss of 150 ml. The mean number of lymph nodes resected was 26.1 ± 11.4. The average hospital stay was 4 ± 4 days, and complications were recorded in 104 subjects, with an average rate of 24%, of which 29 (27.4%) obtained a Clavien-Dindo IIIB classification. Conclusions. Laparoscopic gastrectomy in a high-volume center and with experienced surgeons in Colombia has perioperative results similar to those reported in the world literature. Studies with greater strength of association are still required to establish recommendations on the routine use of this approach in advanced malignant pathology.

Resumen Introducción. El cáncer gástrico en Colombia es la segunda neoplasia más común en hombres y la cuarta en mujeres. En los últimos años se han descrito ampliamente los beneficios del abordaje laparoscópico en el cáncer gástrico frente a sangrado, recuperación postoperatoria y complicaciones, sin afectar los resultados oncológicos. Métodos. Estudio observacional retrospectivo de pacientes llevados a gastrectomía laparoscópica en la Clínica Universitaria Colombia durante un período de diez años, entre 2013 y 2023. Se describieron los resultados perioperatorios en cuanto a estancia hospitalaria, sangrado operatorio, duración del procedimiento, complicaciones, causas de reintervención y mortalidad en los primeros 30 días. Resultados. Se incluyeron 418 pacientes, 58,9 % hombres, con una edad promedio de 60,8 años. Se documentó un tiempo quirúrgico promedio de 228,7 minutos, con un sangrado de 150 ml. La media de ganglios linfáticos resecados fue de 26,1 ± 11,4. La estancia hospitalaria en promedio fue de 4 ± 4 días, y se registraron complicaciones en 104 sujetos, con una tasa promedio de 24 %, de las cuales 29 (27,4 %) obtuvieron una clasificación Clavien-Dindo IIIB. Conclusiones. La gastrectomía por laparoscopia en un centro de alto volumen y con cirujanos experimentados en Colombia, tiene resultados perioperatorios similares a lo reportado en la literatura mundial. Aún se requiere de estudios de mayor fuerza de asociación para establecer recomendaciones sobre el uso rutinario de este abordaje en patología maligna avanzada.