This paper presents the stages of an acceleration program focused on chemical technologies. We demonstrate how this initiative contributes to the creation of new businesses, startups, and technology licensing from research developed at Brazilian universities. The case of the program Escale-se is discussed. There were 66 technologies submitted, and 14 were selected for the pre-acceleration phase. In this phase, various contents were worked on, such as creating a business model and aspects of scaling hard-science technologies. Teams were evaluated by panels with market specialists, and 6 were selected for the second phase: pre-scaling/proof of concept. Here, proponents were encouraged to validate the business model by connecting with potential clients and partners, as well as planning the development and testing of the product in a relevant environment. Finally, one team was classified for the last stage: scaling/go-to-market - where they received R$ 100,000.00 to scale up their technology and create strategies for raising investments. Four of the fourteen technologies selected for the program opened National Register of Legal Entities (CNPJ) and raised approximately R$ 4.5 M in investments from different sources. These results demonstrate that the methodology contributed to the entrepreneurial development of participating researchers and the raising of funds for the businesses created. startups universities Escalese Escale se discussed submitted 1 preacceleration pre phase hardscience hard science specialists prescaling/proof prescalingproof scaling/proof proof concept Here partners environment Finally stage scaling/gotomarket scalinggotomarket scaling/go go R 10000000 100 000 00 100,000.0 CNPJ (CNPJ 45 4 5 4. sources created prescaling scalingproof gotomarket scalinggo 1000000 10 0 100,000. 100000 100,000 10000 100,00 1000 100,0 100,

ABSTRACT The purpose of this study was to analyze the influence of attention and skepticism in the evaluation of false market discourse with an environmental appeal (greenwashing). The theoretical support for the research was based on the study of the attention process (understood in terms of pre-attention and attention), as well as the practice of greenwashing and consumer skepticism. The methodological procedure adopted a hypothetical-deductive approach, carried out through two face-to-face experiments (n=129 and n=159) with a 2 factorial design (attention/pre-attention) x 2 (present/absent skepticism), with the measurement of four interest metrics (attribute evaluation, judgment about the practice of greenwashing, emotional reaction to the advertisement, and environmental purchase behavior), added to eye tracking. One-way ANOVA was used for one-dimensional analyzes and general linear model (GLM) ANOVA for multivariate analyses, with Tukey's post hoc test. As a result, it was possible to observe a better evaluation of the practice of greenwashing when pre-attentiveness and the absence of skepticism were combined, which sets up a potential scenario for the influence of this false marketing discourse on consumer behavior. greenwashing. . (greenwashing) understood preattention pre attention, , attention) hypotheticaldeductive hypothetical deductive approach facetoface face n=129 n129 n 129 (n=12 n=159 n159 159 attention/preattention attentionpreattention attention/pre (attention/pre-attention present/absent presentabsent present absent skepticism, skepticism) attribute advertisement behavior, behavior behavior) tracking Oneway One way onedimensional one dimensional GLM (GLM analyses Tukeys Tukey s test result preattentiveness attentiveness combined (greenwashing n=12 n12 12 (n=1 n=15 n15 15 attentionpre n=1 n1 1 (n= n= (n

RESUMO O trabalho teve como objetivo analisar a influência da atenção e do ceticismo na avaliação do falso discurso mercadológico com apelo ambiental (greenwashing). O suporte teórico da pesquisa assentou-se no estudo do processo da atenção (compreendido em termos de pré-atenção e atenção), assim como da prática de greenwashing e o ceticismo do consumidor. O procedimento metodológico adotou uma abordagem hipotético-dedutiva, realizada por meio de dois experimentos presenciais (n=129 e n=159) com desenho fatorial 2 (atenção/pré-atenção) x 2 (ceticismo presente/ausente), com a mensuração de quatro métricas de interesse (avaliação dos atributos, julgamento acerca da prática de greenwashing, reação emocional ao anúncio e comportamento ambiental de compra), somada ao monitoramento ocular (eyetracker). Foram empregadas a ANOVA one-way para as análises unidimensionais e a ANOVA pelo modelo linear geral (GLM) para as análises multivariadas, com o teste post hoc de Tukey. Como resultado, foi possível observar uma melhor avaliação da prática de greenwashing quando da junção da pré-atenção e da ausência do ceticismo, o que configura um cenário de potencialidade da capacidade de influência desse falso discurso mercadológico no comportamento do consumidor. greenwashing. . (greenwashing) assentouse assentou se compreendido préatenção pré atenção, , atenção) consumidor hipotéticodedutiva, hipotéticodedutiva hipotético dedutiva, dedutiva hipotético-dedutiva n=129 n129 n 129 (n=12 n=159 n159 159 atenção/préatenção atençãopréatenção atenção/pré (atenção/pré-atenção presente/ausente, presenteausente presente/ausente presente ausente presente/ausente) atributos compra, compra compra) eyetracker. eyetracker (eyetracker) oneway one way GLM (GLM multivariadas Tukey resultado (greenwashing n=12 n12 12 (n=1 n=15 n15 15 atençãopré (eyetracker n=1 n1 1 (n= n= (n

RESUMO Este artigo propõe um modelo conceitual para avaliar como a motivação materialista dos consumidores impacta as características sociais (prestígio e conspicuidade) que geram Status para produtos tecnológicos inovadores, que podem levar à intenção de consumo. O estudo utilizou uma abordagem quantitativa para testar um modelo conceitual utilizando a modelagem de equações estruturais com o uso do PLS - SEM. Os resultados indicam que o prestígio do produto e a percepção de conspicuidade do produto medeiam a motivação materialista dos consumidores, o que afeta o status social proporcionado pelo produto ao indivíduo. Da mesma forma, a percepção de inovação e o status do produto medeiam a relação entre conspicuidade e prestígio percebido em relação à intenção de consumo. Esta pesquisa fornece insights importantes sobre as fortes relações entre as características sociais do produto tecnológico que levam em conta os valores dos indivíduos. Como consequência, este estudo contribui diretamente na compreensão de status e valores sociais influenciando a intenção de consumo de produtos tecnológicos, demonstrando o quanto a inovação traz elementos de valoração do indivíduo que a possui. inovadores SEM forma indivíduos consequência possui

ABSTRACT This article proposes a conceptual model to assess how consumers' materialistic motivations impact social characteristics (prestige and conspicuity) that generate status for innovative technological products, which can lead to consumption intention. The study used a quantitative approach to test a conceptual model using structural equation modeling through PLS - SEM. The results indicate that product prestige and perception of product conspicuity mediate consumers’ materialistic motivations, which affects the social status provided to the individual by the product. Likewise, perception of innovation and product status mediate the relationship between conspicuity and perceived prestige in relation to consumption intention. This research yields important insights regarding the strong relations between the social characteristics of technological products that take into account individuals’ values. Consequently, this study enhances understanding of how status and social value influence the intention to consume technological products, demonstrating the extent to which innovation brings elements of value to individuals who own the product in question. consumers SEM Likewise values Consequently question

RESUMO Vários estudos têm vinculado diferentes outcomes organizacionais como antecedentes às capacidades dinâmicas, sendo que se destacam o empreendedorismo, o dinamismo ambiental, os recursos, a gestão do conhecimento, a aprendizagem organizacional e o planejamento estratégico. O presente estudo tem por objetivo avaliar de forma completa, considerando todas as dimensões conceituais, como se relacionam o modelo das alavancas de controle estratégico e as capacidades dinâmicas, considerando o perfil dos empregados da ITAIPU Binacional. Os dados foram coletados por meio de um survey e as hipóteses avaliadas com o auxílio da modelagem de equações estruturais, empregando-se o método de estimação por mínimos quadrados parciais. Os resultados obtidos validaram a hipótese central de que as alavancas de controle influenciam positivamente a presença das capacidades dinâmicas, além de uma das hipóteses complementares de que o sistema interativo influencia positivamente a presença da capacidade de sentir as oportunidades. As alavancas de controle estratégico podem ser tratadas agora pelas organizações como possíveis fontes de capacidades dinâmicas. dinâmicas empreendedorismo ambiental recursos conhecimento completa conceituais Binacional estruturais empregandose empregando parciais oportunidades

ABSTRACT Several studies have thus far linked diverse organizational outcomes as antecedents to dynamic capabilities, with an emphasis on entrepreneurship, environmental dynamism, resources, knowledge management, organizational learning, and strategic planning. This study aims to fully assess how the model of strategic levers of control and dynamic capabilities framework are related, considering all conceptual dimensions and the profile of ITAIPU Binacional employees. The data was collected through a survey, and the hypotheses evaluated with the assistance of structural equation modelling, using the partial least squares estimation method. The findings validated the central hypothesis, that the levers of control do positively influence the presence of the dynamic capabilities, in addition to one other complementary hypothesis- that the interactive system also positively influences the ability to sense opportunities. The strategic levers of control can now be treated by organizations as possible sources of dynamic capabilities. entrepreneurship dynamism resources management learning planning related employees survey modelling method hypothesis opportunities

Resumo A competitividade das empresas do setor de sistemas eletromecânicos de engenharia desempenha um papel fundamental na promoção do crescimento econômico e da inovação. O objetivo deste estudo é desenvolver um índice abrangente para avaliar a competitividade das empresas, com foco na eficiência operacional, posicionamento estratégico e o ambiente internacional. Empregando uma análise fatorial exploratória, os dados foram coletados por meio de um questionário aplicado a 280 empresas em Moscou, Rússia. O índice proposto permite uma avaliação dinâmica da competitividade, permitindo a análise de indicadores-chave ao longo do tempo e prevendo mudanças na competitividade. As conclusões revelam fatores críticos que contribuem para a competitividade no sector, permitindo aos decisores formular estratégias para melhorar a sua posição competitiva. Esta pesquisa fornece informações valiosas para formuladores de políticas, profissionais da indústria e pesquisadores acadêmicos no aumento da competitividade das empresas de sistemas eletromecânicos de engenharia e na promoção do desenvolvimento econômico sustentável. As contribuições do estudo para a literatura e sua relevância prática o tornam um recurso valioso para o público acadêmico e do setor. inovação operacional internacional exploratória 28 Moscou Rússia indicadoreschave indicadores chave sector competitiva políticas sustentável 2

Abstract The competitiveness of enterprises in the electromechanical systems engineering sector plays a crucial role in driving economic growth and innovation. This study aims to design a comprehensive index for evaluating enterprise competitiveness, focusing on operational efficiency, strategic positioning, and the international environment. Employing an exploratory factor analysis, data was collected through a questionnaire administered to 280 enterprises in Moscow, Russia. The proposed index allows for a dynamic assessment of competitiveness, enabling the analysis of key indicators over time and predicting changes in competitiveness. The findings reveal critical factors contributing to competitiveness in the sector, enabling decision-makers to formulate strategies for improving their competitive position. This research provides valuable insights for policymakers, industry practitioners, and academic researchers in enhancing the competitiveness of electromechanical systems engineering enterprises and fostering sustainable economic development. The study's contributions to the literature and its practical relevance make it a valuable resource for academic and industry audiences alike. innovation efficiency positioning environment 28 Moscow Russia decisionmakers decision makers position policymakers practitioners development studys s alike 2

Resumen: La pandemia por COVID-19 influyó en el proceso de educación superior generando una transición entre la modalidad presencial a la modalidad en línea-emergente en la que se identificaron varias dificultades para el acceso debido a la inequidad, problemas tecnológicos, crisis de salud y económica a nivel mundial, y en Ecuador a nivel de docentes y estudiantes. El descubrimiento de conocimiento en bases de datos de KDD - Educacional, el análisis de técnicas de minería de datos de clasificación y agrupación, y el complemento de análisis de datos con la inteligencia de negocios determinaron los factores desde la perspectiva de la institución, del docente y de los estudiantes que inciden en el proceso de educación en línea, donde se demuestra además, la importancia del modelo de educación, la metodología del proceso de enseñanza aprendizaje, el entorno de aprendizaje y el bienestar de los docentes y estudiantes que garantizan una educación superior en línea de calidad con igualdad de oportunidades en el acceso.

Abstract: The COVID-19 pandemic significantly impacted higher education, forcing a rapid transition from face-to-face modality to the emerging online learning modality. This transition exposed several challenges, including, inequitable access to technology, global health and economic crisis, and specific difficulties faced by both teachers and students in Ecuador. Knowledge discovery in KDD - Educational databases, the analysis of classification and clustering data mining techniques and the complement of data analysis with business intelligence determined the factors from the perspective of the institution, teachers and students that influence the online education process. In addition, the importance of the education model, the teaching-learning process methodology, the learning environment, and the well-being of teachers and students that guarantee quality online higher education with equal access opportunities is demonstrated.

ABSTRACT This paper studies the incidence of the pandemic generated by the COVID-19 virus on entrepreneurship in the department of Santander, Colombia, using data from the Microbusiness Survey (EMICRON) of DANE from 2019 to 2022. For this purpose, the characteristics of entrepreneurship before, during, and after the crisis of Covid-19 are described, and the probability of being a consolidated entrepreneur in Santander is analyzed according to internal and external factors of the business unit. The results indicate that micro-businesses in Santander can adapt and grow, overcoming the challenges imposed by the COVID-19 pandemic. However, challenges persist in financing and formalization that must be addressed to ensure sustainable and robust development in the future. JEL CLASSIFICATION: L26, R11, R58

RESUMEN Se estudia la incidencia de la pandemia, generada por el virus del Covid-19 sobre el emprendimiento en el departamento de Santander; Colombia, utilizando los datos de la Encuesta de Micronegocios (EMICRON) del DANE durante el periodo de 2019 a 2022. Para ello, se describen las características del emprendimiento antes, durante y después la crisis por Covid-19, y se analiza la probabilidad de ser un emprendimiento consolidado en Santander según factores internos y externos de la unidad de negocio. Los resultados indican que los micronegocios en Santander tienen capacidad de adaptación y crecimiento, superando los desafíos impuestos por la pandemia de Covid-19. Sin embargo, persisten desafíos en términos de financiamiento y formalización que deben ser abordados para asegurar un desarrollo sostenible y robusto en el futuro. CLASIFICACIÓN JEL: L26, R11, R58

RESUMO Estudamos a incidência da pandemia, gerada pelo vírus Covid-19, sobre o empreendedorismo no departamento de Santander Colômbia, usando dados da Pesquisa de Microempresas (EMICRON) do DANE durante o período de 2019 a 2022. Para isso, descrevemos as características do empreendedorismo antes, durante e após a crise da Covid-19 e analisamos a probabilidade de ser um empreendedor consolidado em Santander de acordo com fatores internos e externos da unidade de negócios. Os resultados indicam que as microempresas do Santander têm a capacidade de se adaptar e crescer; superando os desafios impostos pela pandemia da Covid-19. No entanto, ainda há desafios em termos de financiamento e formalização que precisam ser abordados para garantir um desenvolvimento sustentável e robusto no futuro. CLASSIFICAÇÃO JEL: L26, R11, R58

Resumen: El comercio electrónico del sector de la moda ha aumentado en los últimos años en Latinoamérica, especialmente a raíz de la pandemia, sin embargo, todavía existen problemas en la aceptación de este canal de compra. La presente investigación se centra en algunos factores que podrían influir en la intención de compra y tiene como objetivos comprobar cómo en ella influyen la confianza, los riesgos percibidos, los costos y la conveniencia. Para esto, se suministró un cuestionario a 223 estudiantes de cuatro universidades del Ecuador. Para el análisis de los datos obtenidos se desarrolló un modelo PLS-SEM, en el cual la confianza en el vendedor actúa como variable mediadora en la relación entre los otros tres factores y la intención de compra. Los resultados muestran que dicho modelo tiene un aceptable poder predictivo y explicativo. Asimismo, se comprueba que los riesgos, la conveniencia y la confianza afectan significativamente a la intención de compra, pero no los costos. Además, la confianza mediaría la relación entre las tres variables y la intención de compra en línea. Se concluye que el modelo propuesto puede servir de base para estudios similares y, a su vez, se considera que los resultados obtenidos pueden ser utilizados por las empresas en el sector de la moda que quieren vender a través de plataformas de e-Commerce para el desarrollo de estrategias de marketing.

Abstract: E-commerce in the fashion sector has increased in recent years in Latin America, especially in the wake of the pandemic, however, there are still issues in the acceptance of this shopping channel. The present research focuses on some factors that could influence purchase intention and aims to test how it is influenced by trust, perceived risks, costs and convenience. For this purpose, a questionnaire was given to 223 students from four universities in Ecuador. A PLS-SEM model was developed for the analysis of the data, in which trust in the seller has a mediating role in the relationship between the other three factors and purchase intention. Results show that this model has acceptable predictive and explanatory power. Likewise, it validates that risks, convenience and trust significantly affect intention, but not costs. In addition, trust would mediate the relationship between the other variables and online shopping intention. It is concluded that the proposed model can serve as a basis for similar studies, and, at the same time, it is considered that the results obtained can be used by business in the fashion sector that pursue to sell through e-commerce platforms for marketing strategies development.

Resumen La investigación tiene como objetivo la elaboración de un modelo agrometeorológico de pronóstico del rendimiento agrícola azucarero. Se tomaron los rendimientos por cepas y totales, área de cada cepa y total, y edad de la plantación de 13 Unidades Empresariales de Base de las provincias Cienfuegos, Sancti Spíritus y Ciego de Ávila en el período 1980-2015; así como, registros mensuales de precipitación, temperatura media y evapotranspiración de siete estaciones meteorológicas. Se calculó el Índice Potencial Productivo según la fase fenológica en la que se encuentre para comprobar su grado de efectividad. Para el procesamiento estadístico se utilizó el tabulador Excel, STATISTICA versión 8.0.5 y el módulo matemático SciPy. La efectividad de las estimaciones de rendimiento agrícola obtenidas con el modelo presentado para las zafras 2011 - 2015, se comparó usando el coeficiente de determinación R2, analizando la relación establecida entre las variables regresoras y el predictando. El modelo de regresión lineal múltiple permite realizar pronósticos de rendimiento agrícola con precisión y ajuste, en dependencia de los escenarios comerciales concretos de la producción cañera del país. La provincia Ciego de Ávila revela, de las tres en estudio, el mayor grado de efectividad en la estimación del rendimiento agrícola de la caña de azúcar.

Abstract The objective of the research is the development of an agrometeorological model for forecasting sugar agricultural yield. The yields by strains and totals, area of each strain and total, and age of the plantation were taken from 13 Management Business Units in the Cienfuegos, Sancti Spíritus and Ciego de Ávila provinces in the period 1980-2015; as well as monthly records of precipitation, average temperature and evapotranspiration from seven meteorological stations. The Productive Potential Index was calculated according to the phenological phase in which it is found to verify its degree of effectiveness. For statistical processing, the Excel tabulator, STATISTICA version 8.0.5 and the SciPy mathematical module were used. The effectiveness of the agricultural yield estimates obtained with the model presented for the 2011 - 2015 harvests was compared using the coefficient of determination R2, analyzing the relationship established between the regressor variables and the predictand. The multiple linear regression model allows agricultural performance forecasts to be made with precision and adjustment, depending on the specific commercial scenarios of the country's sugarcane production. The province of Ciego de Ávila reveals, of the three under study, the highest degree of effectiveness in estimating the agricultural yield of sugar cane.

Poor phase separation and fine dissemination of the desired components within congruous slag phases are key challenges limiting the recoverability of values from slags by conventional beneficiation methods. Slag microstructure conditioning is a pragmatic approach to increasing the value-in-use of discard slags, especially when integrated with the broader smelter infrastructure. Although not yet tested on oxide slag systems, this paper explores the potential application of magnetohydrodynamic principles to the crystallization behaviour of bulk slags. Integrating the slag microstructure conditioning infrastructure to the existing smelter infrastructure is key to unlocking the economic value of slags because it is most economic to condition the properties of molten slag directly after tapping. A new business model that integrates smelting units to transversal economic activities, such as cement production and suppliers of construction aggregates, can significantly increase the circularity of metallurgical slags.

Abstract Introduction/Frame: Trust is foundational to qualitative research and program evaluation to ensure that data collection, data analysis, and actionable recommendations improve programs and produce effective outcomes. Concomitantly, building trust between the university and community sectors offers a rich opportunity to join efforts to address public health issues including substance use, homelessness, criminal justice involvement, and mental illness. Research suggests cross-sector collaboration among human services organizations produces effective outcomes when stakeholders are engaged, trust one another, and have shared goals. Developing qualitative program evaluation partnerships between university researchers and human service organizations offers a valuable application of cross-sector collaboration, including the transferability of qualitative research and program evaluation findings. Objective: This conceptual paper aims to highlight the essentiality of trust, summarize the facilitators and barriers of collaboration, and share a case example of a partnership. Additionally, it offers implications for researchers and community partners while outlining the benefits of university/community collaboration. Finally, we will offer a conceptual model of the iterative relationship between trustworthiness, trust, and impact in our evaluation approach. Theoretical Framework: Our approach to community-focused qualitative program evaluation is anchored in an action research paradigm, a use evaluation approach, coupled with trust as the key factor in developing and maintaining effective evaluative relationships. The Impact of Trust: Three areas in which trust is most beneficial to qualitative program evaluation are relationships, data collection, and transferability of results. Conceptual Model: Our model is grounded in three seminal works focusing on trust in business-business relationships, organizational trustworthiness as a mediator to both cognitive and affective trust, and relationship stability in inter-organizational reliance. Final Considerations: We found that using this model allowed quicker research-to-practice implementation of evaluation recommendations, solidified community/university collaborative relationships, and facilitated strategies to address workforce shortages in community human services agencies.

ABSTRACT • The possible production of fructo-oligosaccharides from sucrose was evaluated in the Base Business Unit (UEB) “Ignacio Agramonte'”, which currently produces sorbitol, with low exploitation of the installed capacity, due to lack of glucose. There was an opportunity in infrastructure, time and labor to convert the entity into a multipurpose plant. A simulation model of the technology for the production of fructo-oligosaccharide syrup from sucrose was developed, based on the enzymatic transformation of sucrose into fructo-oligosaccharides, using the recombinant enzyme 1-SST (1-sucrose: sucrose fructosyltransferase) expressed in Pichia pastoris, obtained at the Center for Genetic Engineering and Biotechnology at Sancti Spiritus. Model validation yielded relative errors lesser than 5 %. Two improvement alternatives were evaluated based on increasing the production of FOS by using the actual installed capacity in the sorbitol factory (alternative 1) and also increasing the initial concentration of the sucrose solution (alternative 2). Feasibility of the alternatives was evaluated by comparing the annual net cash income (Anci) and expenses. Alternative 2 was the best, producing 841,5 t of fructo-oligosaccharides in 90 working days, with a benefit/cost ratio of 1,2.

RESUMEN • Se evaluó la posibilidad de incorporar la produccón de fructo-oligosacáridos a partir de sacarosa en la Unidad Empresarial de Base (UEB) “Ignacio Agramonte” que produce actualmente sorbitol, con un bajo aprovechamiento de la capacidad instalada por falta de glucosa, existiendo oportunidad en infraestructura, tiempo y mano de obra para convertir la entidad en una planta multipropósito. Se desarrolló un modelo de simulación de la tecnología de producción de sirope de fructo-oligosacáridos a partir de sacarosa, basada en la transformación enzimática de la sacarosa en fructo-oligosacáridos, utiizando la enzima recombinante 1-SST (1-sacarosa: sacarosa fructosiltransferasa) expresada en Pichia pastoris, obtenida en el Centro de Ingeniería Genética y Biotecnología de Sancti Spiritus. La validación del modelo arrojó errores relativos menores que el 5 %. Se evaluaron dos alternativas de mejoras a partir de aumentar la producción de FOS al utilizar la capacidad real instalada en la fábrica de sorbitol (alternativa 1) y además aumentar la concentración inicial de la solución de sacarosa (alternativa 2). Se evaluó la factibilidad de las alternativas al comparar la ganancia anual después de impuestos (Anci) y los egresos. La alternativa 2 resultó la mejor, produciéndose con ella 841,5 t de fructo-oligosacáridos en 90 días de trabajo, con una relacion beneficio / costo de 1,2.

ABSTRACT As a result of the COVID 19 pandemic, a set of modifications were implemented in the way it was taught. Higher education institutions in Chile were not immune to this phenomenon, and to this scenario was added a set of trends that had already been raising the need to review didactics, in terms of what and how it is taught. Different initiatives led to the development and implementation of didactic strategies that sought to solve the challenges faced by the educational system. Even though innumerable articles referring to the implementation of these didactic innovations have appeared, the evidence regarding the impact of their adaptations remains scarce. The objective of this research is to evaluate the impact of the use of the Case Method on the academic performance of the students of the calculus subject of the Business Administration Engineering degree at a Chilean higher education institution in an online context. through a difference-in-differences model using control groups generated with the Propensity Score Matching technique. The results show a positive and statistically significant effect on student grades.

RESUMEN Producto de la pandemia de COVID 19 se implementaron un conjunto de modificaciones en la forma cómo se enseñaba. Las instituciones de educación superior en Chile no estuvieron ajenas a ese fenómeno, y a este escenario se sumó un conjunto de tendencias que ya venían planteando la necesidad de revisar la didáctica, en cuánto al qué y al cómo se enseña. Diferentes iniciativas llevaron al desarrollo e implementación de estrategias didácticas que buscaron resolver los desafíos que enfrentaba el sistema educativo. Aun cuando han surgido innumerables artículos referidos a la implementación de estas innovaciones didácticas, la evidencia respecto del impacto de sus adaptaciones permanece escasa. El objetivo de la presente investigación es evaluar el impacto del uso del Método del Caso en el rendimiento académico de los estudiantes de los estudiantes de la asignatura de cálculo de la carrera Ingeniería en Administración de Empresas de una institución de educación superior chilena en un contexto online mediante un modelo de diferencias en diferencias usando grupos de control generados con la técnica de Propensity Score Matching. Los resultados muestran un efecto positivo y estadísticamente significativo en las calificaciones de los estudiantes.

RESUMEN En este artículo se presentan los principales autores que desarrollan modelos de estimación de la incertidumbre, en procesos de planeación estratégica de las organizaciones y su incidencia en los objetivos institucionales. En este orden de ideas, se ha realizado una revisión de la literatura con fundamento en enfoques y modelos que han sido utilizados a través del tiempo para manejar la incertidumbre empresarial y se presentan algunos casos aplicados para diferentes factores internos de una organización; así mismo dentro de este artículo se contemplan factores externos como medioambientales en los cuales se han hecho uso de los siguientes modelos: modelo de decisión, modelo de factores locales vs fuerzas conductoras, simulación Monte Carlo y Modelo Delphi; y finalmente para los factores sociopolíticos se ha implementado el enfoque heurístico para explorar las incertidumbres en la planificación. Por otro lado, se realiza un análisis de los tipos de planificación que manejan las organizaciones con sus respectivos modelos de incertidumbre. La principal conclusión obtenida, radica en el hecho de que no existen modelos que integren elementos tanto endógenos como exógenos capaces de reducir la incertidumbre para efectos de una adecuada planeación estratégica en las organizaciones y proyectos de inversión a su cargo.

ABSTRACT This article presents the main authors who develop uncertainty estimation models in strategic planning processes of organizations and their impact on institutional objectives. In this order of ideas, a review of the literature has been carried out based on approaches and models that have been used over time to manage business uncertainty and some cases applied to different internal factors of an organization are presented; Likewise, within this article, external and environmental factors are considered in which the following models have been used: decision model, local factors vs driving forces model, Monte Carlo simulation and Delphi Model; and finally for sociopolitical factors, the heuristic approach has been implemented to explore uncertainties in planning. On the other hand, an analysis is carried out of the types of planning that organizations manage with their respective uncertainty models. The main conclusion obtained lies in the fact that there are no models that integrate both endogenous and exogenous elements capable of reducing uncertainty for the purposes of adequate strategic planning in the organizations and investment projects under their charge.

The objective of this study is to increase the efficiency and productivity of a business that offers sandblasting and painting services. An integrated model incorporating lean manufacturing tools, including preventative and autonomous maintenance, 5S, and SMED, is presented in this article. The model consists of four distinct phases. The initial stage consists of diagnosing the company's beginning state. The second stage entails the execution of the 5S methodology to arrange workstations. Following this, a maintenance programme was implemented, which ultimately resulted in the reduction of setup times for the painting machine configuration. Furthermore, an assessment was conducted on the realised enhancements, and metrics were compared both before and after deployment. Statistical validation was performed via a pilot study that occupied an extended period. The findings validated a productivity improvement of 10% and an efficiency increase of 23.8%. In addition, a 32.04% reduction in setup time was observed.

Die doel van hierdie studie is om die doeltreffendheid en produktiwiteit van 'n besigheid wat sandblaas- en verfdienste bied, te verhoog. 'n Geïntegreerde model wat skraal vervaardigingsgereedskap insluit, insluitend voorkomende en outonome instandhouding, 5S en SMED, word bespreek. Die model bestaan uit vier verskillende fases. Die aanvanklike stadium bestaan uit die diagnose van die maatskappy se begintoestand. Die tweede fase behels die uitvoering van die 5S-metodologie om werkstasies te bestuur. Hierna is 'n instandhoudingsprogram geïmplementeer, wat uiteindelik gelei het tot die vermindering van opsteltye vir die verfmasjienkonfigurasie. Verder is 'n assessering gedoen oor die gerealiseerde verbeterings, en numeriese uitsette is beide voor en na ontplooiing vergelyk. Statistiese validering is uitgevoer via 'n loodsstudie wat 'n lang tydperk in beslag geneem het. Die bevindinge het 'n produktiwiteitsverbetering van 10 persent en 'n doeltreffendheidverhoging van 23.8 persent bevestig. Daarbenewens is 'n vermindering van 32.04 persent in opstel tyd waargeneem.