ABSTRACT Plant density and correct row spacing are fundamental factors for achieving profitable yield and fruit quality in crops. This study aimed to evaluate the yield of tomato plants of determinate growth and the physicochemical characteristics of the fruits in different planting arrangements and plant densities. Two experiments were conducted using the hybrids CVR-2909 (CVR Plant Breeding) and HMX 7885 (Agristar) in the first and second experiments, respectively. The experiments were conducted in a randomized block design with four replicates. Ten treatments were evaluated in a double factorial scheme (2 × 5). Two planting arrangements were evaluated in the first factor: single and double rows. The second factor comprised five plant densities: 15, 20, 25, 30, and 35 thousand plants ha-1. For the CVR-2909 hybrid, single-row cultivation resulted in the highest yield, while higher planting densities gave the lowest yield and number of fruits per plant. For the HMX-7885 hybrid, it was found that higher densities gave higher yields but caused a decreasing effect on fruit production per plant, average fruit mass, and number of fruits per plant. For this hybrid, the planting arrangement provided a higher rate of green fruits. crops CVR2909 CVR 2909 CVR-290 Breeding 788 Agristar (Agristar respectively replicates 2 ( 5. 5 . 5) rows 15 20 25 30 3 ha1. ha1 ha 1. 1 ha-1 hybrid singlerow HMX7885 HMX-788 mass CVR290 290 CVR-29 78 ha- HMX788 HMX-78 CVR29 29 CVR-2 7 HMX78 HMX-7 CVR2 CVR- HMX7 HMX-

RESUMO A densidade de plantas e o espaçamento correto são fatores fundamentais para alcançar produtividade rentável e qualidade dos frutos em culturas agrícolas. Este estudo teve como objetivo avaliar a produtividade do tomateiro de crescimento determinado e as características físico-químicas dos frutos, em diferentes arranjos de plantio e densidades de plantas. Foram realizados dois experimentos, sendo que no primeiro experimento e no segundo experimento foram utilizados os híbridos CVR-2909 (CVR Plant Breeding) e HMX 7885 (Agristar), respectivamente. Os experimentos foram conduzidos em delineamento de blocos casualizados, com quatro repetições. Foram avaliados dez tratamentos em esquema fatorial duplo (2 × 5). No primeiro fator, foram avaliados dois arranjos de plantio: linhas simples e linhas duplas. No segundo fator, foram avaliadas cinco densidades de plantas: 15, 20, 25, 30 e 35 mil plantas ha-1. Para o híbrido CVR-2909, o cultivo em linhas simples proporcionou maior produtividade, já as maiores densidades de plantas resultaram em menor produção e número de frutos por planta. Para o híbrido HMX-7885, maiores densidades de plantas proporcionaram maior produtividade, porém com menor produção por planta, massa média e número de frutos por planta. Para esse híbrido o arranjo de plantio proporcionou maior taxa de frutos verdes. agrícolas físicoquímicas físico químicas CVR2909 CVR 2909 CVR-290 Breeding 788 Agristar, Agristar , (Agristar) respectivamente casualizados repetições 2 ( 5. 5 . 5) fator duplas 15 20 25 3 ha1. ha1 ha 1. 1 ha-1 CVR2909, 2909, planta HMX7885, HMX7885 7885, HMX-7885 verdes CVR290 290 CVR-29 78 (Agristar ha- HMX788 HMX-788 CVR29 29 CVR-2 7 HMX78 HMX-78 CVR2 CVR- HMX7 HMX-7 HMX-

ABSTRACT: To improve the nutritional and functional quality of agro-industrial waste, his study established a ternary mixture of flours made from pineapple, acerola, and passion fruit waste using the simplex-centroid design, as well as to evaluate their effects on the physicochemical and sensory characteristics of edible ice cream. Using mixture planning, nine ternary flour components were applied to edible ice cream formulations to evaluate acceptance scores for taste, texture, and overall impression attributes, as well as physicochemical parameters (pH, acidity, soluble solids, and color parameters) and microbiological parameters (thermotolerant coliforms at 45 ºC, Enterobacteriaceae and Salmonella). The simplex-centroid design demonstrated that the cubic model best predicts the results for the analyzed sensory attributes. The response surface graphs indicated the area of greatest acceptance in the formulations with the maximum percentage established for the flour with acerola waste. The highest level of acceptability was given to the ternary mixture of 60%, 30%, and 10% pineapple, passion fruit, and acerola flours, respectively. The results indicated that sorbet enriched with flour composed of the ternary mixture is a product with the potential for exploitation, as well as contributing to the reduction of environmental impacts generated by the large and improper disposal of agro-industrial fruit processing residues in the ecosystem. ABSTRACT agroindustrial agro industrial pineapple simplexcentroid simplex centroid planning taste texture attributes pH, pH (pH acidity solids thermotolerant 4 ºC Salmonella. Salmonella . Salmonella) 60 60% 30 30% 10 respectively exploitation ecosystem 6 3 1

RESUMO: Visando a qualidade nutricional e funcional dos resíduos agroindustriais, o estudo teve como objetivo estabelecer a mistura ternária de farinhas elaboradas com resíduos de abacaxi, acerola e maracujá utilizando o delineamento simplex-centroide, assim como avaliar seus efeitos nas características físico-químicas e sensoriais em gelados comestíveis. Com o planejamento de misturas, nove componentes ternários das farinhas foram aplicados em formulações de gelados comestíveis para avaliação dos escores de aceitação para os atributos sabor, textura e impressão global, bem como os parâmetros físico-químicos (pH, acidez, sólidos solúveis e parâmetros de cor) e microbiológicos (coliformes termotolerantes a 45 ºC, Enterobacteriaceae e Salmonella). O delineamento simplex-centroide demonstrou que o modelo cúbico melhor prediz os resultados para os atributos sensoriais analisados. Os gráficos de superfície de resposta indicaram a área de maior aceitação nas formulações com o máximo percentual estabelecido para a farinha com os resíduos de acerola. O maior índice de aceitabilidade foi atribuído a mistura ternária constituída com 60%, 30% e 10% para as farinhas de abacaxi, maracujá e acerola, respectivamente. Os resultados indicaram que o sorbet enriquecido com a farinha composta pela mistura ternária é um produto com potencial para exploração, além de contribuir para a redução dos impactos ambientais gerados pelo grande e inadequado descarte de resíduos do processamento agroindustrial de frutas no ecossistema. RESUMO agroindustriais abacaxi simplexcentroide, simplexcentroide simplex centroide, centroide físicoquímicas físico químicas misturas sabor global físicoquímicos químicos pH, pH (pH acidez cor coliformes 4 ºC Salmonella. Salmonella . Salmonella) analisados 60 60% 30 10 respectivamente exploração ecossistema 6 3 1

ABSTRACT Ginger (Zingiber officinale Roscoe) waste is a residue from industrial factories that has potential for utilization in the production of bio-extract for pest control. Therefore, this study aimed to investigate the toxicity of fermented ginger waste extract through contact toxicity and oral toxicity methods in controlling the common cutworm (Spodoptera litura Fabricius) and the beet armyworm (Spodoptera exigua Hübner). The experiment was a completely randomized design (CRD) with 10 replicates. Mortality rates were recorded at 48, 72, and 96 h after treatment under laboratory conditions. Fermented ginger waste extract at concentrations of 0%, 5%, 25%, 50%, and 100% (w/v) was used. The results showed that for the contact toxicity method at 100% concentration after 96 h, the common cutworm had the highest mortality rate of 76.00 ± 1.29% (LC50 = 14.450 μg larva-1), while the beet armyworm had the highest mortality rate of 66.00 ± 0.95% (LC50 = 68.426 μg larva-1). For the oral toxicity method, the common cutworm had the highest mortality rate of 52.00 ± 1.70% at 100% concentration after 96 h (LC50 = 91.275 μg larva-1), and the beet armyworm had the highest mortality rate of 58.00 ± 1.02% at 100% concentration after 96 h (LC50 = 88.400 μg larva-1). Therefore, the results of this study demonstrate the efficacy of fermented ginger waste extract in controlling common cutworm and beet armyworm under laboratory conditions, and it has the potential for further application in field conditions.

RESUMEN La presente investigación tuvo como objetivo analizar los efectos de la transformación digital en el sector contable y financiero en Ecuador. Para lograr este objetivo se establecieron tres objetivos específicos, que fueron: identificar los cambios que la transformación digital ha generado en los procesos contables y financieros en empresas ecuatorianas de diversos sectores industriales, analizar las percepciones de los contadores y financieros sobre la adopción de tecnologías digitales en sus tareas cotidianas y cómo afecta a su desempeño laboral, y evaluar la efectividad de las soluciones tecnológicas implementadas en el sector contable y financiero en Ecuador, en términos de eficiencia, reducción de costos y mejora en la toma de decisiones. Para llevar a cabo esta investigación se utilizó un diseño de investigación no experimental de tipo transversal y se aplicó un cuestionario a 150 contadores y financieros de diferentes empresas de Ecuador. Los resultados de la investigación indican que la transformación digital ha tenido un impacto positivo en el sector contable y financiero en Ecuador, ya que ha permitido una mayor eficiencia en los procesos, reducción de costos y mejora en la toma de decisiones. Asimismo, los contadores y financieros perciben que la adopción de tecnologías digitales en sus tareas cotidianas ha mejorado su desempeño laboral y les ha permitido enfocarse en tareas más estratégicas. En cuanto a las soluciones tecnológicas implementadas en el sector contable y financiero, se encontró que las más utilizadas son el software de contabilidad y finanzas, los sistemas de gestión de recursos empresariales y los sistemas de gestión documental. Estas soluciones han demostrado ser efectivas en la mejora de los procesos y en la reducción de costos.

ABSTRACT The objective of this research was to analyze the effects of digital transformation in the accounting and financial sector in Ecuador. To achieve this objective, three specific objectives were established, which were: to identify the changes that digital transformation has generated in accounting and financial processes in Ecuadorian companies from various industrial sectors, to analyze the perceptions of accountants and financiers about the adoption of digital technologies in their daily tasks and how it affects their work performance, and evaluate the effectiveness of the technological solutions implemented in the accounting and financial sector in Ecuador, in terms of efficiency, cost reduction and improvement in decision making. To carry out this research, a non-experimental cross-sectional research design was used and a questionnaire was applied to 150 accountants and financiers from different companies in Ecuador. The results of the research indicate that digital transformation has had a positive impact on the accounting and financial sector in Ecuador, since it has allowed greater efficiency in processes, cost reduction, and improved decision-making. Likewise, accountants and financiers perceive that the adoption of digital technologies in their daily tasks has improved their work performance and has allowed them to focus on more strategic tasks. Regarding the technological solutions implemented in the accounting and financial sector, it was found that the most used are accounting and finance software, business resource management systems and document management systems. These solutions have proven to be effective in improving processes and reducing costs.

Abstract In this work, the economic branches related to design were analyzed, under the assumption that design can help the competitiveness of products, this is done due to the facts derived from the economic crises that emerged in 2004 and 2008, and that only in 2016 a recovery could be observed at the aggregate level of the state economy. With the objective of highlighting the industrial dynamism, the findings/results highlight that some branches related to traditional and technology industries present an economic restructuring towards expansion, while others are suffering a setback, this under the scenario of the effects caused by the economic openings and the new agreements with China, which resulted in a competitive confrontation between Chinese products and Mexican products and added to this only those industries that manage to be more flexible to change and manage to restructure their companies will survive.

Resumen En este trabajo se analizaron las ramas económicas relacionadas con el diseño, bajo el supuesto de que el diseño puede ayudar a la competitividad de los productos, esto se hace por los hechos derivados de las crisis económicas que surgieron en el 2004 y en el 2008, y que apenas en el 2016 se pudo observar una recuperación a nivel agregado de la economía estatal. Con el objetivo de resaltar el dinamismo industrial, los hallazgos/resultados destacan que algunas ramas relacionadas con las industrias tradicionales y de tecnología presentan una reestructuración económica hacia la expansión, mientras que otras están sufriendo un retroceso, esto bajo el escenario de los efectos causados por la aperturas económica y los nuevos acuerdos con China, que dieron como resultado una confrontación competitiva entre los productos chinos y los productos de México y aunado a esto solo sobrevivirán aquellas industrias que logren ser más flexibles al cambio y logren reestructurar su empresas.

Abstract The production of paints using waste from granite and marble processing is a new alternative to contribute to sustainable development in civil construction. However, the lack of studies on the composition and performance of these paints makes the dissemination of this new construction material unfeasible. Therefore, this study aims to investigate the composition of these paints using statistical tools to obtain products with performance compatible with technical regulations and commercial paints. The paint formulations were defined through a quaternary mixture planning. The solids content, pH, viscosity, hiding power, and abrasion resistance were determined for all samples. The paints produced with granite waste showed better hiding power and abrasion resistance, as granite waste has a finer granulometry, in addition to being predominantly composed of silica. Finally, the paints produced in this study and the commercial paints showed similar behavior, which supports the use of waste from the processing of ornamental rocks in paint production. However unfeasible Therefore planning content pH viscosity samples granulometry silica Finally behavior

Resumo A produção de tintas utilizando resíduos de beneficiamento de granito e mármore é uma nova alternativa para contribuir com o desenvolvimento sustentável na construção civil. Entretanto, a carência de estudos sobre a composição e o desempenho dessas tintas inviabiliza a disseminação desse novo material de construção. Logo, este estudo tem como objetivo investigar a composição dessas tintas utilizando ferramentas estatísticas para obter produtos com desempenho compatível com regulamentações técnicas e tintas comerciais. As formulações de tintas foram definidas através de um planejamento de misturas quaternárias. O teor de sólidos, pH, viscosidade, poder de cobertura e resistência à abrasão foram determinados para todas as amostras. As tintas produzidas com resíduos de granito apresentaram melhor poder de cobertura e resistência à abrasão, pois o resíduo de granito apresenta granulometria mais fina, além de ser predominantemente composto por sílica. Por fim, as tintas produzidas neste estudo e as tintas comerciais apresentaram comportamento semelhante, o que corrobora com o aproveitamento do resíduo do processamento de rochas ornamentais na produção de tintas. civil Entretanto Logo quaternárias sólidos pH viscosidade amostras fina sílica fim semelhante

Abstract The article shows how to design and evaluate the strategic vision for the Rural Urban Fringe in Adelia María, Córdoba, Argentina, and signify the commitments to the SDG 2030 agenda. Although the local periurban presents uses that synergize its operation, the community perceives unfavorable use that are not complementary (for example, bad odors from local production). A multicriteria stepwise procedure was used to design the vision and engage stakeholders. First, problems and aspirations were identified through interviews. Second, four RUF visions with strategic land uses were designed and evaluated. Third, the visions were evaluated with the PROMETHEE method. The results show that the actors want a RUF model that exceeds the trend. The chosen vision is complementary. Locate an industrial estate and take advantage of a forest area to reduce odors and noise. Additionally, it densifies future settlements on vacant land and expands the urban area by just 11% to include scattered residences. It locates 19 ha of agricultural parks and distributes recreational areas in the urban sprawl. The vision requires political efforts, and investments and shows how to signify the SDG 2030. The actors positively valued the planning process and how to agree on solutions to structural problems of the territory.

Resumen El artículo muestra cómo diseñar y evaluar la visión estratégica para la Franja Urbana Rural en Adelia María, Córdoba, Argentina, y significar los compromisos con la agenda ODS 2030. Si bien el periurbano local presenta usos que sinergizan su funcionamiento, la comunidad percibe como desfavorables a usos que no son complementarios (por ejemplo malos olores de producciones de proximidad). Se utilizó un procedimiento multicriterio por fases para diseñar la visión e involucrar a actores. Primero, se identificaron problemas y aspiraciones con entrevistas. Segundo, se diseñaron y valoraron cuatro visiones de Franja Urbana Rural con usos del suelo estratégicos. Tercero, se evaluaron las visiones con el método PROMETHEE. Los resultados muestran que los actores desean un modelo de Franja Urbana Rural que supere a la tendencia. La visión elegida es complementaria, y localiza un parque industrial y aprovecha un área forestal para reducir olores, ruidos. También, densifica el poblamiento futuro sobre tierras vacantes y amplía el ejido solo 11% para incluir residencias dispersas. Ubica 19 ha de parques agrarios y distribuye áreas recreativas en la mancha urbana. La visión requiere esfuerzos políticos, inversiones y muestra como significar ODS 2030. Los actores valoraron positivamente el proceso de planificación y como consensuar soluciones a problemas estructurales del territorio.

Resumo O artigo mostra como desenhar e avaliar a visão estratégica para a Faixa Rural Urbana de Adelia María, em Córdoba, Argentina, e significar os compromissos com a agenda dos ODS 2030. Embora o periurbano local apresente usos que sinergizam seu funcionamento, o a comunidade considera desfavoráveis aqueles usos que não são complementares (por exemplo, maus odores provenientes da produção local). Foi utilizado um procedimento multicritério faseado para conceber a visão e envolver os intervenientes. Primeiro, os problemas e aspirações foram identificados através de entrevistas. Em segundo lugar, foram concebidas e avaliadas quatro visões de Faixa Rural Urbana com usos estratégicos do solo. Terceiro, as visões foram avaliadas com o método PROMETHEE. Os resultados mostram que as partes interessadas desejam um modelo de Faixa Rural Urbana que supere a tendência. A visão escolhida é complementar. Localiza um parque industrial e aproveite uma área florestal para reduzir odores e ruídos. Além disso, adensa os futuros assentamentos em terrenos baldios e expande o ejido em apenas 11% para incluir residências dispersas. Localiza 19 hectares de parques agrícolas e distribui áreas de lazer na área urbana. A visão exige esforços políticos, investimentos e mostra como alcançar o ODS 2030. Os atores valorizaram positivamente o processo de planeamento e como chegar a acordo sobre soluções para problemas estruturais do território.

This article applies a network lens to transactional data in order to improve a food banking network's supply chain design and planning. This study draws on data from FoodForward South Africa. This food bank has compiled a rich dataset of connections between supply chain partners (e.g., donors), the flow of stock (volume of food), and their beneficiary organisations. Our analysis showed an increase in the system's 'moving parts' (increased handling of donations), resulting in a significant imbalance between supply and demand. Additionally, in 2022, the organisation's warehouses received a larger number of smaller-volume donations from a wider variety of suppliers, placing an extra burden on the network.

Hierdie artikel pas 'n netwerklens op transaksionele data toe om 'n voedselbanknetwerk se voorsieningskettingontwerp en -beplanning te verbeter. Hierdie studie is gebaseer op data van FoodForward South Africa, 'n voedselbank wat 'n ryk datastel van verbindings tussen voorsieningskettingvennote (skenkers), die vloei van voorraad (voedsel volume) en hul begunstigde organisasies saamgestel het. Ons ontleding het 'n toename in die stelsel se 'bewegende dele' (verhoogde hantering van skenkings) getoon, wat gelei het tot 'n meer beduidende wanbalans tussen vraag en aanbod. Boonop het pakhuise in 2022 'n groter aantal kleiner-volume skenkings van 'n groter verskeidenheid verskaffers ontvang, wat 'n ekstra las op die netwerk geplaas het.

Despite its many pitfalls, the process of innovation should be made as attractive and practical as possible. Innovation model formation is an important yet complex process. This paper reviews the hypothetically improved quadruple helix (QH) model of innovation with respect to model concepts, innovation concepts, and current practical case studies. The updated model constitutes four innovation forces (constructs), namely (1) upscaling agility, (2) triple helix ecosystems, (3) triple management theory (TMT) and triple technology theory (TTT), and (4) epochal society. The model also shows a comprehensive interplay between these constructs within the modern digital, biological, legal and physical worlds. The authors reviewed the model through a conceptual explorative research design with narrative data. The evaluation implied the consideration of combining, adding, or omitting model constructs. Besides learner management and the need to provide a guide for how to use the model, the findings ultimately confirmed its value and usefulness.

Ten spyte van vele slaggate, moet die innovasieproses so aantreklik en prakties moontlik gemaak word. Die vorming van 'n innovasiemodel is 'n belangrike dog komplekse proses. Hierdie artikel hersien die hipoteties verbeterde viervoudigeheliks-innovasiemodel met betrekking tot modelkonsepte, innovasiekonsepte en huidige praktiese gevallestudies. Die bygewerkte model bestaan uit vier innovasiekragte (-konstrukte), naamlik (1) opskaling van behendigheid, (2) drievoudige heliks-ekostelsels, (3) drievoudige bestuursteorie en drievoudige tegnologieteorie, en (4) epogale samelewing. Die model toon ook 'n omvattende wisselwerking tussen hierdie konstrukte binne die moderne, digitale, biologiese, wetlike en fisieke wêrelde. Die outeurs het die model deur 'n konseptuele verkennende navorsingsontwerp met narratiewe data hersien. Die evaluering het die oorweging geïmpliseer om modelkonstrukte te kombineer, by te voeg of weg te laat. Benewens leerderbestuur en die behoefte om 'n gids te voorsien oor hoe om die model te gebruik, het die bevindinge uiteindelik die waarde en bruikbaarheid daarvan bevestig.

RESUMEN Introducción: La productividad en el sector agroindustrial ha logrado atender a la demanda de productos que requiere un consumidor para satisfacer sus necesidades; sin embargo, los trabajadores que ejercen funciones en este tipo de espacios laborales pueden estar expuestos a accidentes y lesiones que pueden afectar su seguridad y salud. Objetivo: Analizar la implementación del Sistema de Gestión de Seguridad y Salud en el Trabajo en el sector agroindustrial colombiano. Método: Se enmarcó en un enfoque cualitativo, de diseño descriptivo, a partir de la búsqueda sistemática de información proveniente de las diferentes bases de datos y revistas científicas indexadas, la cual se abordó como temática principal la implementación del Sistema de Gestión de Seguridad y Salud en el Trabajo en el sector agroindustrial colombiano. Desarrollo: Se encontró que algunas empresas dedicadas a la producción de bienes y servicios agroindustriales no cuentan con la implementación de un Sistema de Gestión de Seguridad y Salud en el Trabajo, a pesar de contar con personal de trabajo que realiza funciones en el área administrativa y operativa, lo que conlleva a la presencia de posibles riesgos para su salud. Conclusión: Es importante que las empresas del sector agroindustrial en Colombia cumplan con los requisitos normativos que presenta el Sistema de Gestión de Seguridad y Salud en el Trabajo para un diseño e implementación que permita la prevención de riesgos.

ABSTRACT Introduction: Productivity in the agro-industrial sector has been able to meet the demand for products required by consumers to satisfy their needs; however, workers who perform functions in this type of workspace may be exposed to accidents and injuries that may affect their safety and health. Objective: Analyze the implementation of the Occupational Health and Safety Management System in the Colombian agro-industrial sector. Method: Was framed in a qualitative approach, descriptive design, based on the systematic search of information from different databases and indexed scientific journals, which addressed as main topic the implementation of the Occupational Health and Safety Management System in the Colombian agro-industrial sector. Development: It was found that some companies dedicated to the production of agro-industrial goods and services do not have the implementation of an Occupational Health and Safety Management System, despite having personnel working in the administrative and operational areas, which leads to the presence of possible risks to their health. Conclusion: Is important that the companies of the agro-industrial sector in Colombia comply with the regulatory requirements of the Occupational Health and Safety Management System for a design and implementation that allows the prevention of occupational health and safety risks.

Abstract The exploration of the biodiversity of cyanobacteria and microalgae holds great promise for obtaining pigments of industrial interest. This study focused on the bioprospecting of these organisms to obtain pigments of industrial interest together with enriched biomass. We investigated the impact of photoperiod and concentration of C/N/P nutrient sources in heterotrophic cultures, controlling specific variables such as light intensity, volume, pH, temperature, air flow and time to produce phycobiliproteins in Arthrospira platensis UTEX1926 and total carotenoids in Scenedesmus sp. using a nonfactorial Plackett‒Burman design in STATISTICA 7.0 software. The biomass concentration was determined by dry weight, while the concentrations of phycocyanin and carotenoids were determined spectrophotometrically at specific wavelengths. Heterotrophic cultures demonstrated superior productivity, with phycocyanin and carotenoids achieving percentages of 7% and 0.4% (w/w), respectively, and an R2 value of 0.99. Among the influential parameters, potassium diphosphate and sodium bicarbonate played pivotal roles in the final deposition of carotenoids and phycocyanin, respectively, yielding concentrations of 96.5 mg/L phycocyanin and 6.5 mg/L carotenoids.

Resumen La exploración de la biodiversidad de cianobacterias y microalgas es muy prometedora para la obtención de pigmentos de interés industrial. Este estudio se centra en la bioprospección de estos organismos para obtener pigmentos de interés industrial junto con biomasa enriquecida. Investigamos el impacto del fotoperiodo y la concentración de fuentes de nutrientes C/N/P en cultivos heterótrofos, controlando variables específicas como la intensidad luminosa, volumen, pH, temperatura, flujo de aire y tiempo para la producción de ficobiliproteínas en Arthrospira platensis UTEX1926 y carotenoides totales en Scenedesmus sp. Empleando un diseño Plackett‒Burman no factorial en el software STATISTICA 7.0. La concentración de biomasa fue determinada por peso seco, mientras que la concentración de ficocianinas y carotenoides fueron determinadas espectrofotométricamente a longitudes de onda específicas. Los cultivos heterótrofos demostraron una productividad superior, alcanzando las ficocianinas y los carotenoides porcentajes del 7% y el 0,4% (% p/p) respectivamente, y un notable valor R2 de 0,99. Entre los parámetros influyentes, el difosfato potásico y el bicarbonato sódico desempeñaron papeles fundamentales en la deposición final de carotenoides y ficocianinas, respectivamente, alcanzando concentraciones de 96,5 mg/L de ficocianinas y 6,5 mg/L de carotenoides.

Abstract In order to take advantage of the antiseptic and healing properties of honey, the preparation of polymeric micro and nanofibers with honey from bees has been investigated in many parts of the world, in order to enhance their use in the development of biomedical products such as dressings, bandages and other elements that favors wound closure and tissue restoration. To contribute to this line of research, a background review is presented here on the application of the electrospinning technique in the preparation of micro and nanofiber membranes with honey, focusing on experimental methodology including the use of polymers, solvents, therapeutic agents, active principles or drugs loaded in apitherapeutic fibers. Electrospinning techniques and parameters, tests and material characterization methods have been compiled, presenting the effect of these variables on the compositional, morphological, mechanical and physicochemical properties of the fibrous meshes. A compendium of biological tests evaluated in vitro and in vivo was made in order to analyze the functionality and potential of the application of fibers in tissue engineering, as well as in the construction of devices for clinical diagnosis and in general for the development of advanced materials for wound treatment. This review sees the establishment of the methodological foundations for the design of new materials based on honey and plant extracts not yet explored, and which could be developed into compounds of high scientific and industrial interest.

Resumen Con el fin de aprovechar las propiedades antisépticas y cicatrizantes de la miel, en muchas partes del mundo se ha investigado la preparación de micro y nanofibras poliméricas con miel de abejas, con el fin de potenciar su uso en el desarrollo de productos biomédicos como apósitos, vendajes y otros elementos que favorezcan el cierre de la herida y la restauración del tejido. Para contribuir a esta línea de investigación, se presenta una revisión de antecedentes sobre la aplicación de la técnica de electrohilado en la preparación de membranas de micro y nanofibras con miel, enfocándose en la metodología experimental que incluye el uso de polímeros, solventes, agentes terapéuticos, principios activos o fármacos cargados en fibras apiterapéuticas. Se han recopilado técnicas y parámetros de electrohilado, ensayos y métodos de caracterización de materiales, presentando el efecto de estas variables sobre las propiedades composicionales, morfológicas, mecánicas y fisicoquímicas de las mallas fibrosas. Se realizó un compendio de pruebas biológicas evaluadas in vitro e in vivo con el fin de analizar la funcionalidad y potencial de la aplicación de fibras en ingeniería de tejidos, así como en la construcción de dispositivos para diagnóstico clínico y en general para el desarrollo de materiales avanzados. para el tratamiento de heridas. Esta revisión prevé el establecimiento de las bases metodológicas para el diseño de nuevos materiales basados en miel y extractos de plantas aún no explorados, y que podrían desarrollarse en compuestos de alto interés científico e industrial.

ABSTRACT Within the framework of Industry 4.0, it is desired to ensure that processes are completely automated. In other words, companies are at the fourth level of the classic automation pyramid. To this end, the EMSI FARMA company is developing a manufacturing operations management system. For the correct behavior of the system, it has been divided into four layers: cloud, fog, edge and field devices. The following article aims to make an architectural proposal for the Edge Computing layer that meets the needs of the system. The proposed Edge architecture is responsible for bringing the logic of operations closer to the field. For its development, a design of functional blocks is used, where each element has its own responsibilities. With the development of the architecture, it was possible to abstract the logic of the elements of the communication protocol that it uses to connect with the upper and lower layers. In addition, it is achieved that the monitoring of operations and the acquisition of data is as close as possible to the data source.

RESUMEN En el marco de la Industria 4.0 se desea lograr que los procesos sean completamente automatizados. En otras palabras, que las empresas se encuentren en el cuarto nivel de la pirámide de automatización clásica. Con este fin, la empresa EMSI FARMA está desarrollando un sistema de gestión de operaciones de fabricación. Para el correcto funcionamiento del sistema se ha dividido en cuatro capas: nube, niebla, borde y dispositivos de campo. El siguiente artículo tiene como objetivo realizar una propuesta de arquitectura para la capa de Computación al Borde que cumpla las necesidades del sistema. La arquitectura de Borde que se propone se encarga de acercar la lógica de las operaciones a los dispositivos de campo. Para el desarrollo de la misma se utiliza un diseño de bloques funcionales, donde cada elemento tiene sus propias responsabilidades. Con el desarrollo de la arquitectura se logró abstraer la lógica de los elementos del protocolo de la comunicación que se utiliza para conectarse con las capas superiores e inferior. Además, se logra que el seguimiento de las operaciones y la adquisición de los datos se encuentre lo más cercano posible de la fuente de datos.

ABSTRACT The objective of this work is to design and implement an adaptive control in conjunction with vector control, with changes in the desired dynamics for the positioning of two degrees of freedom robotic arms. The dynamic model is obtained by applying the Euler-Lagrange method in conjunction with that of a permanent magnet synchronous motor in the synchronous DQ reference frame. An adaptive controller is designed by reference model that generates the reference torque for the vector control of the electric motor. The stability of the closed-loop system is guaranteed by applying the Lyapunov method in the adaptive laws. The control strategy is implemented on the TMS320F28335 processor using the MATLAB and Code Composer tools. The results of the experimental tests are compared with the original control scheme, obtaining a system with lower dynamic errors.

RESUMEN El presente trabajo tiene como objetivo diseñar e implementar un control adaptativo en unión al control vectorial, con cambios en las dinámicas deseadas para el posicionamiento de los brazos robóticos de dos grados de libertad. El modelo dinámico se obtiene de aplicar el método de Euler-Lagrange en conjunto con el de un motor síncrono de imanes permanentes en el marco de referencia DQ sincrónico. Es diseñado un controlador adaptativo por modelo de referencia que genera el torque referencial para el control vectorial del motor eléctrico. La estabilidad del sistema en lazo cerrado es garantizada al aplicar el método de Lyapunov en las leyes adaptativas. La estrategia de control se implementa en el procesador TMS320F28335 empleando las herramientas MATLAB y Code Composer. Los resultados de las pruebas experimentales son comparados con el esquema de control original obteniéndose un sistema con menores errores dinámicos.

Organisations need to adopt AI successfully and responsibly. AI's technical capabilities make AI powerful. However, the implementation of AI in organisations is not limited to the technical elements and requires a more holistic approach. An AI implementation within an organisation is a sociotechnical system, with the interplay between social and technical components. Considering the sociotechnical nature of AI in organisations, the following research question arises: From a sociotechnical perspective, how can an organisation increase adoption of AI as part of its quest to become more data-driven? In light of the research question, we propose to create a sociotechnical artificial intelligence adoption framework with a target audience of both academics and practitioners. This study follows a design science research approach, constituting various iterative cycles. The study is conducted at an automotive manufacturer's IT Hub based in South Africa and has the aim to gain concrete, contextual, in-depth knowledge about a specific real-world organisation. To achieve this, focus groups serve as the primary research method. As the organisation at which the study took place is seen as a global leader in industrial digital transformation, the experience can help researchers and other organisations understand how an organisation can increase the adoption of AI. Categories · Information systems ~ Information systems applications · Computing methodologies ~ Artificial intelligence