RESUMO A solução fundamental para o problema do entupimento do emissor é explorar o projeto ideal da estrutura do emissor e melhorar sua capacidade anti-entupimento. O objetivo da pesquisa foi selecionar a forma estrutural ideal do caminho de fluxo do emissor em sistemas de irrigação por gotejamento utilizando fontes de água de qualidade inferior, proporcionando suporte teórico para melhorar a capacidade anti-obstrução do próprio emissor e para o projeto de novos produtos de emissores. A seleção da estrutura do caminho do fluxo do emissor não tem sido conduzida com base na determinação do modelo de simulação apropriado com a condição complexa de qualidade da água. Para tanto, determinou-se o modelo de movimento interno do fluido adequado do emissor, e avaliou-se de forma abrangente o desempenho hidráulico e o desempenho anti-entupimento das cinco estruturas representativas da trajetória de fluxo no país e no exterior, e finalmente determinou-se a estrutura ótima da trajetória de fluxo do emissor. Os resultados da pesquisa indicaram que o modelo RNG k-ε foi o mais adequado para simular a área do fluxo no emissor por meio da análise abrangente da lacuna entre os valores simulados e os valores medidos, da precisão do cálculo e da eficiência computacional. A trajetória de fluxo fractal foi relativamente ótima para o desempenho hidráulico e para o desempenho anti-entupimento. Este estudo pode fornecer suporte teórico para melhorar a própria habilidade anti-obstrução do emissor e o projeto de novo produto de emissor. antientupimento. antientupimento anti entupimento. inferior antiobstrução obstrução emissores tanto determinouse determinou se avaliouse avaliou exterior kε k ε medidos computacional

ABSTRACT The fundamental solution to the problem of emitter clogging is to explore the optimal structure design of emitter and improve its anti-clogging ability. The research objective was to select the optimal structural form of the emitter flow path in drip irrigation systems using inferior water sources, which can provide theoretical support for improving the anti-clogging ability of the emitter itself and designing new emitter products. The selection of the flow path structure of the emitter has not been conducted on the basis of determining the appropriate simulation model with the condition of complex water quality. Therefore, the appropriate internal fluid movement model of the emitter was determined, the hydraulic performance and anti-clogging performance of the five nationally and internationally representative flow path structures were comprehensively evaluated, and finally the optimal structure of the emitter flow path was determined. The research results indicated that RNG k - ε model was the most suitable to simulate the flow field in the emitter by comprehensive analysis of the gap between simulated values and the measured values, the calculation accuracy and computational efficiency. The fractal flow path was relatively optimal for hydraulic performance and for anti-clogging performance. This study can provide theoretical support for improving the anti-clogging ability of the emitter itself and the design of the new emitter product. anticlogging anti sources products quality Therefore determined evaluated efficiency product

RESUMO Na agricultura irrigada, é comum a aplicação de água no solo cultivado sem critério, resultando em uso ineficiente ou não otimizado da água. Em muitos casos, a relação solo-água-planta, bem como as potencialidades e limitações dos sistemas de irrigação são ignoradas. A agricultura irrigada sustentável requer o desenvolvimento de um sistema de monitoramento da umidade do solo que evite a perda de água e melhore a eficiência do uso. O objetivo deste estudo foi desenvolver e avaliar a eficiência de um sistema inteligente de monitoramento da umidade do solo. O sistema é composto por duas estações: a primeira coleta os dados sobre parâmetros de umidade aparente do solo usando sensores, enquanto a segunda transmite esses dados para uma estação de processamento central. O sistema determina precisamente os valores atuais de umidade do solo, permitindo estimar o volume de água de irrigação necessário para atender à demanda hídrica da cultura com base na capacidade de campo. Os resultados da curva de calibração dos sensores indicam que o sistema pode medir com precisão a umidade do solo atual, auxiliando no manejo da irrigação. Para áreas irrigadas em condições de solo não saturado, recomenda-se o uso de tensiômetros devido à sua maior confiabilidade entre a capacidade de campo e o ponto de murcha permanente, garantindo práticas de irrigação mais precisas. critério casos soloáguaplanta, soloáguaplanta planta, planta solo-água-planta ignoradas estações central atual saturado recomendase recomenda se permanente precisas

ABSTRACT Water application to cultivated soil is often done without careful consideration in irrigated agriculture, leading to inefficient or suboptimal water usage. In many instances, the intricate relationship between soil, water, and plants, as well as the potential and limitations of irrigation systems, is overlooked. Sustainable irrigated agriculture necessitates the development of a soil moisture monitoring system that curtails water loss and enhances overall efficiency. This study aimed to develop and assess the efficiency of an intelligent system for monitoring soil moisture. The system comprises two stations: the first collects data on apparent soil moisture parameters using sensors, while the second transmits this data to a central processing station. The system precisely determines current soil moisture values, enabling estimation of the required irrigation water volume to meet the crop’s water demand based on field capacity. Results from the calibration curve of the sensors indicate that the system can measure current soil moisture precisely, aiding in irrigation management. For irrigated areas under unsaturated soil conditions, it is recommended to use tensiometers due to their higher reliability between field capacity and permanent wilting point, ensuring more accurate irrigation practices. usage instances plants systems overlooked stations station values crops crop s management conditions point practices

ABSTRACT Introduction: this study focuses on the need to validate and reliably measure management indicators in the field of public health in Paraguay using psychometric techniques. Objective: the main objective of this study was to develop a valid and reliable instrument to measure public health management indicators in Paraguay considering its psychometric properties. Methodology: this study followed a quantitative approach using a descriptive and propositional observational design. A pilot test was conducted using Likert scales to capture different aspects of public health management indicators. Exploratory and confirmatory factor analyses were performed to validate the construct, and the JASP was used for statistical analysis. The sample included adults in Paraguay who were connected to the public health system in the previous year. Results: the results showed that Aiken's V for all items was higher than 0.7, indicating content validity. The fit indices of the confirmatory factor analysis, such as RMSEA=0.064 and CFI=0.971, demonstrated good construct validity. In addition, the alpha and omega values were higher than 0.9, which guarantees the high reliability of the instrument. Conclusion: these results indicate that the developed instrument is valid and reliable for measuring public health management indicators in Paraguay.

RESUMEN Introducción: la investigación se centra en la necesidad de validar y medir de manera confiable indicadores de gestión en el campo de la salud pública en Paraguay mediante técnicas psicométricas. Objetivo: el objetivo principal de este estudio fue desarrollar un instrumento válido y confiable para medir indicadores de gestión de salud pública en Paraguay considerando sus propiedades psicométricas. Metodología: esta investigación siguió un enfoque cuantitativo con un diseño observacional descriptivo y proposicional. Se realizó una prueba piloto utilizando escalas Likert para capturar diferentes aspectos de los indicadores de gestión de salud pública. Se realizaron análisis factoriales exploratorias y confirmatorias para validar el constructo y para el análisis estadístico se utilizó el programa JASP. La muestra incluyó a adultos de Paraguay que estuvieron relacionados con el sistema público de salud en el año anterior. Resultados: los resultados mostraron que la V de Aiken para todos los ítems fue superior a 0,7, lo que indica validez de contenido. Los índices de ajuste del análisis factorial confirmatorio como RMSEA=0,064 y CFI=0,971 demostraron una buena validez de constructo. Además, los valores alfa y omega fueron superiores a 0,9, lo que garantiza la alta confiabilidad del instrumento. Conclusión: estos resultados permitieron concluir que el instrumento desarrollado es válido y confiable para medir indicadores de gestión de salud pública en Paraguay.

Abstract The use of wood is often indicated as a decarbonization strategy for the construction sector. However, the CO 2 footprint of native wood, that is, the emissions during wood harvesting, transportation, and processing, depends on the type of forest management practiced. This study quantifies the CO 2 footprint of native rough sawn lumber from forests with three types of harvesting: sustainable management, conventional management, and conventional selective extraction (deforestation). CO 2 emissions were analyzed from harvesting to the end of wood processing based on data from the literature and the Construction Environmental Performance Information System. The CO 2 footprint of rough sawn lumber varies between 25 and 19,860 kCO 2 /m 3 , with the lowest values for wood from sustainable management and the highest for conventional selective extraction. In addition, managed wood stores temporarily in its cell structure ~353kgC/m 3 . Native wood from sustainable harvesting can contribute to decarbonizing buildings, whereas wood from conventional harvesting and deforestation are relevant sources of CO 2 emissions, considering the wood life cycle. sector However transportation practiced deforestation. (deforestation) System 19860 19 860 19,86 m addition 353kgCm kgCm 353kgC kgC buildings cycle (deforestation 1986 1 86 19,8 198 8 19,

Resmo O uso da madeira é frequentemente apontado como uma estratégia de descarbonização para a construção. Entretanto, a pegada de CO2 da madeira nativa, ou seja, que são as emissões decorrentes da sua exploração florestal, transporte e beneficiamento, depende do tipo de manejo florestal. Este estudo quantifica a pegada de CO2 da madeira nativa serrada bruta, proveniente de três tipos de exploração florestal: manejo sustentável, manejo convencional e extração seletiva convencional (desmatamento). Analisaram-se as emissões de CO2 da exploração florestal até o término do beneficiamento da madeira, com dados da literatura e do Sistema de Informação do Desempenho Ambiental da Construção. A pegada de CO2 da madeira serrada bruta varia entre 25 e 19.860 kgCO2/m3, com os menores valores para a madeira de manejo sustentável e os maiores para a madeira de extração seletiva convencional. Além disso, a madeira manejada estoca temporariamente, em sua estrutura celular, ~353 kgC/m3. Madeiras nativas de manejo florestal sustentável podem contribuir com a descarbonização dos edifícios, enquanto as madeiras de manejo convencional e, sobretudo, de desmatamentosão fontes expressivas de CO2 dentro do seu ciclo de vida. construção Entretanto CO seja desmatamento. desmatamento . (desmatamento) Analisaramse Analisaram se Construção 2 19860 19 860 19.86 kgCO2m3 kgCOm kgCO2 m3 kgCO m kgCO2/m3 disso temporariamente celular 353 ~35 kgCm3 kgCm kgC kgC/m3 edifícios sobretudo vida (desmatamento 1986 1 86 19.8 kgCO2m kgCO2/m 35 ~3 kgC/m 198 8 19. 3 ~

Resumen Objetivo: este estudio estima un sistema de demanda de bienes alimenticios en México, incorporando dimensiones territoriales y de ingreso. Se evalúa el impacto diferenciado de choques en los precios en el bienestar económico y la tasa de pobreza, considerando variaciones entre hogares y entre cinco grandes regiones. Metodología: utilizando el modelo de valores unitarios de Deaton (1988) y la Encuesta Nacional de Ingresos y Gastos de los Hogares (ENIGH) de 2018, calculamos elasticidades-precios y elasticidades-ingreso y el impacto de las variaciones de precios en el ingreso y la pobreza. Resultados: revelan importantes diferencias regionales y se subraya la necesidad de considerar diferencias socioeconómicas y regionales y de adoptar un enfoque territorial en este tipo de análisis y para formular políticas efectivas. Limitaciones: existen limitaciones a este estudio que pueden afectar la comprensión completa de la dinámica de la pobreza. Hemos enfocado nuestra atención únicamente en los bienes alimenticios, excluyendo un grupo específico de productos, en este caso, los productos pesqueros. También, se considera que los hogares son únicamente consumidores de bienes, omitiendo así la dimensión productiva de autoconsumo. Originalidad: radica en la vinculación directa entre las estimaciones de pobreza y la desagregación territorial, integra patrones de consumo y elasticidades específicas a cada región. Conclusiones: se resalta la importancia de considerar las diferencias socioeconómicas y regionales al analizar la demanda de bienes alimenticios y su impacto en la pobreza. A pesar de las limitaciones, nuestros hallazgos subrayan la necesidad de un enfoque territorial en este tipo de análisis para formular políticas adaptadas y efectivas de reducción de la pobreza en diferentes regiones del país.

Abstract Objective: this study estimates a system of demand for food products in Mexico, incorporating territorial and income dimensions. The differentiated impact of shocks on prices on economic well-being and the poverty rate is evaluated, considering variations among households and across five major regions. Methodology: using Deaton’s (1988) unit values model and the 2018 National Income and Expenditure Survey (ENIGH), we calculate price and income elasticities, examining the impact of price variations on income and poverty. Results: our results reveal significant regional differences, emphasizing the need to consider socioeconomic and regional variations and to adopt a territorial approach in such analyses for effective policy formulation. Limitations: there are limitations to this study that may affect a complete understanding of poverty dynamics. We have focused our attention solely on food products, excluding a specific group of products, in this case, fishery products. We also assume that households are only consumers of goods, thus omitting the productive and self-consumption dimension. Originality: lies in the direct link between poverty estimates and territorial disaggregation, integrating consumption patterns and specific elasticities for each region. Conclusions: our study highlights the importance of considering socioeconomic and regional differences when analyzing the demand for food products and its impact on poverty. Despite the limitations, our findings underscore the need for a territorial approach in this type of analysis to formulate tailored and effective poverty reduction policies in different regions of the country.

Abstract Introduction. Estimating crop evapotranspiration (ETc) helps determine water requirements, enabling the proposal of irrigation techniques that save water. Objective. To use remotely piloted aircraft system (RPAs) for greater precision in measuring evapotranspiration in rice fields, aiming to reduce water consumption. Materials and methods. The study utilized a randomized complete block design with a factorial structure of two experiments: flooded irrigation (E1) and irrigation with controlled drying (E2), and three rice varieties (IR43, IR71706, Sahod Ulan 12). The study was conducted at the Experimental Irrigation Area (AER) of the Universidad Nacional Agraria La Molina, Peru. Eight RPAS flights were carried out between January and February 2019, distributed between the tillering and cotton point stages. Results. The combined analysis of treatments using analysis of variance (ANOVA) and Duncan’s test with p < 0.05 revealed a significant difference in ETc between E1 and E2. However, no significant difference was found between the rice varieties. Maximum values of ETc and yield were obtained for E1 at 4.50 mm/day and 10389 kg/ha, and for E2 at 3.7 mm/day and 9710 kg/ha, respectively. Conclusions. The use of a remotely piloted aircraft system improved the temporal and spatial resolution of multispectral and thermal images, providing greater accuracy in crop evapotranspiration (ETc) under two irrigation regimes. Controlled drying irrigation resulted in a A 24% reduction in ETc, allowing for a water saving of 855 m3/ha.

Resumen Introducción. La estimación de la evapotranspiración del cultivo (ETc) permite conocer los requerimientos de agua del cultivo, que ayudan a proponer técnicas de riego con ahorro de agua. Objetivo. Usar el sistema de aeronave pilotada remotamente (RPAs) para mayor precisión de la evapotranspiración en arrozales a fin de reducir el consumo de agua. Materiales y métodos. Para el estudio la distribución de parcelas siguió un diseño de bloques completamente al azar con estructura factorial de dos experimentos: riego inundado (E1) y riego con secas controladas (E2), y tres variedades de arroz (IR43, IR71706, Sahod Ulan 12); se llevó a cabo en el Área Experimental de Riego (AER) de la Universidad Nacional Agraria La Molina, Perú. Entre enero y febrero del 2019 se realizaron ocho vuelos, de un RPAs, distribuidos entre las etapas de macollamiento y punto de algodón. Resultados. El análisis combinado de tratamientos con análisis de varianza y prueba de Duncan con p < 0,05, reveló diferencia significativa de la ETc, entre E1 y E2. Sin embargo, no se encontró diferencia significancia entre las variedades de arroz. Se obtuvo valores máximos de ETc y rendimiento para E1 de 4,50 mm/d y 10 389 kg/ha, y para E2 de 3,7 mm/d y 9710 kg/ha, respectivamente. Conclusiones. El uso de un sistema de aeronave pilotada remotamente permitió mejorar la resolución temporal y espacial de las imágenes multiespectrales y térmicas para obtener mayor precisión en la evapotranspiración del cultivo (ETc) bajo dos regímenes de riego. En el riego con secas controladas se obtuvo una reducción del 24 % de la ETc lo que permitió un ahorro de agua de 855 m3/ha.

Summary: Soil organic carbon (SOC) is a key indicator of soil health. Arbuscular mycorrhizal fungi (AMF) have been shown to increase SOC and respond to SOC content, which in turn, is directly related to land use. We investigated the relationships between land use and Glomeromycotina AMF spore abundance of two AMF functional guilds, rhizophilic (having high root internal AMF hyphal length) and edaphophilic (with high external soil hyphal length) to SOC content in agroforestry systems (AS) and seasonal forest (SF) of Tzucacab, Yucatan, Mexico. Our results indicate greater SOC values in SF than AS of the same age with a trend of increasing SOC with system age. Rhizophilic spore abundance correlated with SOC content, showing differences among land uses and system ages but not between seasons. No relationship was observed between edaphophilic spore abundance to SOC. Thus, we suggest that Glomeromicotyna spore abundance (measured at any time of the year) of rhizophilic fungi could be a good indicator of SOC and, a tool to monitor soil health due to land use changes.

Resumen: El carbono orgánico del suelo (COS) es un indicador clave de la salud del suelo. Se ha demostrado que los hongos micorrícicos arbusculares (HMA) pueden aumentar el COS, y también responder al contenido de COS; el cual, a su vez, está directamente relacionado con el uso del suelo. Investigamos las relaciones entre el uso del suelo y la abundancia de esporas de HMA de dos grupos funcionales de HMA, los rizófilos (con alta longitud hifal interna de HMA en las raíces) y los edafófilos (con alta longitud hifal externa del suelo) con el contenido de COS en sistemas agroforestales (SAF) y un bosque estacional (BE) en Tzucacab, Yucatán, México. Nuestros resultados indican valores de COS más altos en BE que en SAF de la misma edad, con una tendencia a aumentar el COS con la edad del sistema. La abundancia de esporas rizofílicas se correlaciona con el contenido de COS, mostrando diferencias entre los usos del suelo y las edades del sistema, pero no entre las estaciones. No se observó relación entre la abundancia de esporas edafófilas y el COS. Por lo tanto, sugerimos que la abundancia de esporas (medida en cualquier momento del año) de hongos rizófilos podría ser un buen indicador del COS y una herramienta para monitorear la salud del suelo debido a cambios en el uso del suelo.

Resumen: El hormigón es el material principal utilizado en la construcción en Ecuador. Para su diseño, se consideran dos características: la resistencia a la compresión y el módulo de elasticidad. El módulo de elasticidad se calcula convencionalmente en relación con la resistencia a la compresión, mediante ecuaciones establecidas en códigos de diseño. Sin embargo, investigaciones han demostrado que estas ecuaciones no reflejan con precisión la realidad en Ecuador, ya que el módulo de elasticidad no solo depende de la resistencia a la compresión, sino también de otras variables como el origen del agregado, el tipo de cemento, el proceso de producción, entre otros. En este estudio, se desarrolla un modelo que utiliza la teoría de lógica difusa para estimar el módulo de elasticidad. Se emplea un sistema de inferencia lógica ANFIS (Adaptive Neuro Fuzzy Inference Systems), utilizando datos previos de ensayos de laboratorio como conocimiento previo para crear funciones de membresía (FMs) y reglas difusas del tipo condicional (If-Then) para estimar nuevos datos del módulo de elasticidad. Además de la resistencia a la compresión, se consideran otras variables importantes en la determinación del módulo de elasticidad. Los resultados son favorables, con un coeficiente de correlación R2=0.988 y una desviación estándar S=0.097, lo que indica que el sistema de inferencia lógica (SIL) es capaz de desarrollar un modelo único que permite considerar todas las variables que influyen en la determinación del módulo de elasticidad y proporcionar valores confiables.

Abstract: Concrete is the most frequently used construction material in Ecuador. Two characteristics considered for its design are compressive strength and modulus of elasticity. The latter is conventionally calculated in relation to the former using equations established in design codes. However, research has shown that these equations do not accurately reflect the reality in Ecuador, as the modulus of elasticity depends not only on compressive strength but also on other variables such as aggregate origin, type of cement, production process, among others. In this study, a model using fuzzy logic is developed to estimate the modulus of elasticity by applying an ANFIS (Adaptive Neuro Fuzzy Inference Systems) logical inference system. Previous laboratory test data are used as prior knowledge to create membership functions (MFs) and fuzzy conditional rules (If-Then) to estimate new modulus of elasticity. In addition to compressive strength, other important variables are considered in the determination of the modulus of elasticity. The results are favorable, with a correlation coefficient R2=0.988 and a standard deviation S=0.097, indicating that the logical inference system (LIS) is capable of developing a unique model that allows considering all variables that influence the determination of the modulus of elasticity and providing reliable results.

Abstract Coffee fruit processing residues have been proposed to prevent meat quality loss. This study aimed to evaluate the effectiveness of coffee silverskin aqueous extract (CSE) on the oxidative stability of a pork meat homogenate. CSE was subjected to polyphenols determination (total phenol, flavonoids, and caffeoylquinic acid contents) and antiradical and reducing power assays. In addition, raw pork meat homogenates were divided into four treatments (CN, control or without antioxidant; T1 and T2, CSE at 250 and 500 ppm, respectively; BHT, synthetic antioxidant at 500 ppm), oxidized for 1 h with potassium ferrocyanide (0, 0.5, and 1.0 %, w/v), and subjected to meat quality evaluation (pH, lipid oxidation, color, and metmyoglobin content). Results demonstrated that CSE is an important source of polyphenols with antioxidant activity, and their incorporation in a raw pork meat homogenate led to reduce pH values, lipid oxidation, and metmyoglobin content, as well as decreased color changes (p < 0.05). These results suggest that CSE has great potential as an antioxidant additive for meat products.

Resumen Los residuos del procesamiento del fruto de café se han propuesto como una estrategia para prevenir la pérdida de calidad de la carne. Este estudio tuvo como objetivo evaluar la efectividad del extracto acuoso de cascarilla de café (CSE) sobre la estabilidad oxidativa en un sistema de homogenizados de carne cruda de cerdo. El CSE se sometió a la determinación de polifenoles (fenoles, flavonoides y ácido cafeoilquínico), así como a ensayos de actividad antirradical y poder reductor. Además, los homogenizados de carne cruda de cerdo se dividieron en cuatro tratamientos (CN, control o sin antioxidante; T1 y T2, CSE a 250 y 500 ppm, respectivamente; BHT, antioxidante sintético a 500 ppm), oxidados por 1 h con ferrocianuro de potasio (0, 0.5 y 1.0 %, p/v), y fueron sometidos a evaluación de calidad de la carne (pH, oxidación de lípidos, color y contenido de metamioglobina). Los resultados demostraron que los CSE son una fuente importante de polifenoles con actividad antioxidante, y su incorporación en un homogenizado de carne de cerdo cruda condujo a una reducción de los valores de pH, oxidación de lípidos y contenido de metamioglobina, así como a una disminución de los cambios de color (p < 0.05). Estos resultados sugieren que el CSE tiene un gran potencial como aditivo antioxidante para productos cárnicos.

RESUMO Os sistemas de produção integrados surgiram como uma estratégia de produção sustentável na intensificação do uso da terra com impacto mínimo nas funções do ecossistema. Este estudo utilizou ferramentas de agricultura de precisão para investigar a variabilidade espacial de propriedades do solo e da vegetação em área de Integração Lavoura-Pecuária-Floresta (ILPF) e área de Integração Pecuária-Floresta (IPF) em São Carlos, SP, Brasil. Consequentemente, foram avaliados: (1) as propriedades físico-químicas do solo, (2) a resistividade elétrica, e (3) os atributos da cultura do Eucalyptus urograndis que compõem a área de estudo. As amostragens foram realizadas em (1) agosto de 2021 nas profundidades de 0-0,2 e 0,2-0,4 m; (2) outubro de 2021 nas profundidades de 0-0,5, 0-1,0 e 0-2,0 m; e (3) abril de 2021 e abril de 2022. Os resultados indicaram que os valores dos parâmetros de fertilidade do solo foram adequados ao desenvolvimento da cultura e apresentaram baixa variabilidade espacial. As análises de solo indicaram baixa acidez, altos teores de matéria orgânica, teores médios de fósforo, potássio e capacidade de troca catiônica e altos teores de cálcio, magnésio e saturação por base. Entretanto, foram observados locais com maior variabilidade espacial para cálcio, refletindo variabilidade na capacidade de troca catiônica e saturação por base. A granulometria e a resistividade elétrica do solo apresentaram baixa variabilidade espacial na camada superficial. Mesmo sem diferenças nas propriedades do solo, houve diferença de 15% no maior volume de madeira no sistema IPF em comparação ao ILPF. ecossistema LavouraPecuáriaFloresta Lavoura Pecuária Floresta ILPF (ILPF PecuáriaFloresta (IPF Carlos SP Brasil Consequentemente avaliados 1 (1 físicoquímicas físico químicas 2 (2 3 (3 202 00,2 002 0 0,2 0-0, 0,20,4 0204 0,4 4 0,2-0, m 00,5, 005 0,5, 5 0-0,5 01,0 010 1,0 0-1, 02,0 020 2,0 0-2, 2022 acidez orgânica fósforo cálcio base Entretanto superficial 15 ( 20 00 00, 02 0, 0-0 0,20, 04 0,2-0 00,5 05 0,5 01 01, 10 1, 0-1 02, 2, 0-2 0- 0,20 0,2-

ABSTRACT Integrated production systems have emerged as a sustainable production strategy in intensifying land use with minimal impact on ecosystem functions. This study used precision agriculture tools to investigate the spatial variability of soil and vegetation properties in an integrated crop-livestock-forestry (ICLF) and in an integrated livestock-forestry (ILF) area of São Carlos city, SP, Brazil. Consequently, the following were assessed: (1) the soil physicochemical properties, (2) the electrical resistivity, and (3) the attributes of the Eucalyptus urograndis crop comprising the study area. Samplings were performed in (1) August 2021 at depths of 0-0.2 and 0.2-0.4 m; (2) October 2021 at depths of 0-0.5, 0-1.0, and 0-2.0 m; and (3) April 2021 and April 2022. Results indicated that the values for soil fertility parameters were suitable for crop development and presented low spatial variability. Soil analyses indicated low acidity, high levels of organic matter, average cation exchange capacity, phosphorus and potassium contents, high base saturation, and calcium and magnesium levels. However, locations with greater spatial variability for calcium were observed, reflecting cation exchange capacity and base saturation variability. Soil granulometry and electrical resistivity had a low spatial variability at the surface layer. Even without differences in the soil properties, there was a difference of 15% in the larger wood volume in the ILF then ICLF system. functions croplivestockforestry livestock forestry (ICLF livestockforestry (ILF city SP Brazil Consequently assessed 1 (1 2 (2 3 (3 202 00.2 002 0 0.2 0-0. 0.20.4 0204 0.4 4 0.2-0. m 00.5, 005 0.5, 5 0-0.5 01.0, 010 1.0, 0-1.0 02.0 020 2.0 0-2. 2022 acidity matter contents However observed layer 15 system ( 20 00 00. 02 0. 0-0 0.20. 04 0.2-0 00.5 05 0.5 01 01.0 10 1.0 0-1. 02. 2. 0-2 0- 0.20 0.2- 01. 1. 0-1

Resumen: La investigación, con enfoque epistemológico cuantitativo y el paradigma positivista, tiene como objetivo definir la relación entre el marco regulatorio del sector financiero ecuatoriano y las condiciones de financiamiento a las pymes. Esta fue de tipo descriptivo-correlacional, permitiendo realizar un análisis descriptivo y factorial de variables vinculadas al conocimiento y aplicación de leyes y códigos regulatorios de 54 oficiales de crédito del sector bancario de El Oro, Ecuador. Se identificaron dos dimensiones: una relacionada con el marco regulatorio monetario y otra con códigos orgánicos. Las encuestas señalan que las leyes más aplicadas son: Ley General de Instituciones del Sector Financiero y Ley de Compañías. La primera regula la creación, funcionamiento y cierre de instituciones financieras privadas para proteger a la población y asegurar la estabilidad financiera; su cumplimiento es supervisado por la Superintendencia de Bancos. La segunda simplifica el proceso de constitución de empresas, permitiendo diversos tipos de compañías y flexibilidad en su estructura. Las regulaciones bancarias ecuatorianas han experimentado reformas para fortalecer la solidez y transparencia del sistema, como la Ley de Mercado de Valores y la Ley de Instituciones del Sistema de Seguros Privados, que contribuyen a la estabilidad, regulación, protección al consumidor financiero y promoción de la competencia, generando condiciones de financiamiento favorables, que incluyen confianza, tasas de interés competitivas y amplias opciones financieras.

Abstract: The research, with a quantitative epistemological approach and the positivist paradigm, aims to define the relationship between the regulatory framework of the Ecuadorian financial sector and the financing conditions for SMEs. This was of a descriptive-correlational type, allowing a descriptive and factorial analysis of variables linked to the knowledge and application of laws and regulatory codes of 54 credit officers from the banking sector of El Oro, Ecuador. Two dimensions were identified: one related to the monetary regulatory framework and another with organic codes. Surveys indicate that the most applied laws are: General Law of Financial Sector Institutions and Companies Law. The first regulates the creation, operation and closure of private financial institutions to protect the population and ensure financial stability; Its compliance is supervised by the Superintendency of Banks. The second simplifies the business incorporation process, allowing various types of companies and flexibility in their structure. Ecuadorian banking regulations have undergone reforms to strengthen the soundness and transparency of the system, such as the Securities Market Law and the Law of Institutions of the Private Insurance System, which contribute to stability, regulation, financial consumer protection and promotion of competition, generating favorable financing conditions, which include confidence, competitive interest rates and broad financial options.

Resumen La mayoría de los parques fotovoltaicos instalados en el territorio nacional cuentan con medios de registro y reporte, junto con la generación eléctrica, de varias variables meteorológicas que tienen influencia en su rendimiento, en particular, la radiación solar, que es medida con piranómetros. Estos instrumentos pueden presentar variaciones en sus constantes de calibración tras un uso prolongado, y requieren de un esquema de monitoreo y calibraciones periódicas. A continuación se presenta un método de validación preliminar de los datos de radiación solar en los parques fotovoltaicos, que puede ir indicando en qué parques se están reportando valores erróneos de radiación solar. El método compara los valores horarios reportados cada día en cada parque con los estimados por el modelo numérico de pronóstico WRF y en los días donde la correlación entre ambas series es superior a 0.985, calcula entones la relación entre las sumas de cada serie. Si el valor esta relación es próximo a 1, se puede considerar que el piranómetro de ese parque funciona correctamente. Se presentan los resultados de la evaluación de los reportes de radiación solar en un conjunto de parques fotovoltaicos conectados a la red eléctrica nacional.

Abstract The majority of photovoltaic parks installed in the national territory have means of recording and reporting, along with electricity generation, several meteorological variables that influence their performance, in particular, solar radiation, which is measured with pyranometers. These instruments may present variations in their calibration constants after prolonged use, and require a monitoring scheme and periodic calibrations. Below is a preliminary validation method for solar radiation data in photovoltaic parks, which can indicate in which parks erroneous solar radiation values are being reported. The method compares the hourly values reported each day in each park with those estimated by the WRF numerical forecast model and on days where the correlation between both series is greater than 0.985, it then calculates the relationship between the sums of each series. If the value of this ratio is close to 1, it can be considered that the pyranometer of that park is working correctly. The results of the evaluation of solar radiation reports in a set of photovoltaic parks connected to the national electrical grid are presented.

Resumen El objetivo de esta investigación fue analizar la relación de resistencia a la insulina, sobrepeso y obesidad. Con una población de 2574 pacientes con diagnóstico de obesidad y sobrepeso, se obtuvo una muestra de 334 pacientes. Se realizó un estudio de tipo descriptivo, documental, retrospectivo, transversal y correlacional. Para la recolección de datos se empleó las historias clínicas registradas en el sistema operativo AS400 de IBM, de atención médica del Instituto Ecuatoriano de Seguridad Social. El resultado total de los pacientes perteneció al sexo femenino con un porcentaje del 77.84 %, residencia urbana (73.65 %) e instrucción superior (60.5 %). El 52.8 % de los individuos registró un IMC >30kg/m2. Los pacientes adultos jóvenes de instrucción superior, sexo masculino y sector urbano registraron la mayor prevalencia de resistencia a la insulina, siendo ésta del 61.7 %. En el análisis bivariado los pacientes con obesidad mórbida presentaron mayor riesgo de resistencia a la insulina (RP:1.5; IC95 %:1. 29; 1.77). Se estableció una relación significativa entre el antecedente familiar de diabetes mellitus tipo 2 y el riesgo de presentar resistencia a la insulina (p<0.001; RP: 1.32; IC 95 %: 1.12: 1.56). Los valores de hiperglucemia, hiperinsulinemia e hiperuricemia, así como de AST Y ALT elevadas registraron una relación significativamente con HOMA-IR >3. Se concluye que la resistencia a la insulina es una entidad frecuente en pacientes con sobrepeso y obesidad, identificándose una mayor prevalencia en el género masculino, misma que predispone a la progresión de enfermedades crónicas.

Abstract This research aimed to analyze the relationship between insulin resistance, overweight and obesity. A population of 2,574 patients diagnosed with obesity and overweight was obtained, considering a sample of 334 patients. A descriptive, documentary, retrospective, cross-sectional, and correlational study was conducted. For data collection, the medical records recorded in the IBM AS400 operating system for the Ecuadorian Social Security Institute's medical care were used. The total result of the patients belonged to the female sex with a percentage of 77.84%, urban residence (73.65%), and higher education (60.5%). 52.8% of the individuals registered a BMI > 30kg/m2. Young adult patients with higher education, male sex, and urban sector registered the highest insulin resistance prevalence, 61.7%. In the bivariate analysis, patients with morbid obesity presented a higher risk of insulin resistance (PR: 1.5; 95% CI: 1. 29, 1.77). A significant relationship was established between family history of type 2 diabetes mellitus and the risk of developing insulin resistance (p<0.001; PR: 1.32; 95% CI: 1.12: 1.56). The values of hyperglycemia, hyperinsulinemia, hyperuricemia, and elevated AST and ALT were significantly related to HOMA-IR > 3. It was concluded that insulin resistance is a frequent entity in overweight and obese patients, with a higher prevalence identified in the male gender, which predisposes to the progression of chronic diseases.

Resumen El bienestar es un principio importante para las sociedades modernas. En su investigación es necesario que se refleje la cultura local de la población estudiada. Las redes semánticas y la teoría de grafos apoyan este fin pues la definición del bienestar se deriva directamente de la muestra de la población de interés. En la etapa uno (N = 201, 52% mujeres y 48% hombres, voluntarias[os] -con consentimiento informado-, 20 años y mayores, media = 39.97 años, D.E. = 13.56 años) se generaron redes semánticas para definir el concepto de bienestar. En la etapa dos las redes semánticas fueron el fundamento para la construcción de dos escalas que se validaron (N = 427, 55% mujeres y 45% hombres, voluntarias[os] -con consentimiento informado- 20 años y más, media = 37.75 años, D.E. = 12.54 años). Analizado con la teoría de grafos, el bienestar resultó ser un sistema social complejo (no lineal, fenómeno de mundo pequeño, emergencia), y mostró los principales elementos para definir el bienestar (componentes afectivos y cognitivos). De los subgrafos se derivaron los tres principales dominios con sus subdominios: salud (física y psicológica), relaciones significativas (familia, amigas[os], comunidad) y recursos (personales, materiales, de tiempo). La escala de satisfacción con el bienestar y la escala de experiencias de bienestar tuvieron buen ajuste mostrando valores adecuados. Las redes semánticas probaron ser un buen recurso para ayudar en la construcción de un cuestionario para estudiar el bienestar subjetivo con una perspectiva culturalmente relevante.

Abstract Studied worldwide, well-being is an important principle for the modern societies and needs to reflect the local cultures of the targeted populations. Semantic networks and graph theory address this issue: a definition of well-being comes directly from a sample of the targeted population. The stage one (N = 201, 52% female and 48% male, volunteers-informed consent provided-, 20 years and older, mean = 39.97 years, S.D. = 13.56 years) semantic networks defined well-being. In stage two the networks were the foundation to construct two scales which were validated (sample N = 427, 55% female and 45% male, volunteers-informed consent provided- 20 years and older, mean = 37.75 years, S.D. = 12.54 years). Analyzed with graph theory, well-being resulted in a social complex system (non-linearity, small world phenomenon, emergency), and showed the main elements to define well-being (affect and cognitive components). Its subgraphs were arranged into three main domains with subdomains: health (physical and psychological), relationships (family, friends, community) and resources (personal, material, time). The scale of satisfaction with well-being (α = .912) and the scale of experiences of well-being (α = .969) showed a good fit and obtained adequate values. Semantic networks proved to be a good resource to help in the construction of a questionnaire to study well-being with a cultural perspective.

Abstract Although Niklas Luhmann did not produce a work with a critical objective, his sociological theory holds unexplored potential that can be used to advance critical analyzes of various social dimensions (economics, law, politics, etc.). We chose, here, to use these potentials to observe the possibilities of making a critique regarding the dimension of the mass media system. We argue that, in it, criticism reveals itself (1) in the observation of the arbitrariness of the social values that the media construct and (2) in the ignorance of the communicative plurality of modernity, which in turn (3) allows us to see the theory of Luhmann as one that reveals absurdities. objective economics, economics (economics law politics etc.. etc etc. . etc.) chose here system it 1 (1 2 (2 modernity 3 (3 absurdities (

Resumo Apesar de Niklas Luhmann não ter produzido uma obra com um objetivo crítico, sua teoria sociológica guarda potenciais inexplorados que podem ser utilizados para avançar análises críticas de dimensões sociais variadas (economia, direito, política etc.). Escolhemos, aqui, utilizar esses potenciais para observar as possibilidades de se fazer uma crítica referente à dimensão do sistema dos meios de comunicação de massa. Argumentamos que, nela, a crítica se revela (1) na constatação da arbitrariedade dos valores sociais que os veículos de comunicação constroem e (2) na ignorância da pluralidade comunicativa da modernidade, o que por sua vez (3) permite enxergar a teoria de Luhmann como uma reveladora de absurdos. crítico economia, economia (economia direito etc.. etc etc. . etc.) Escolhemos aqui massa nela 1 (1 2 (2 modernidade 3 (3 absurdos (