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JUAN DIEGO VALENZUELA COBOS

JUAN DIEGO VALENZUELA COBOS

DIRECTOR/A DEL CENTRO DE ESTUDIOS ESTADISTICOS

FACULTAD CIENCIAS E INGENIERÍA
AUXILIAR
jvalenzuelac@unemi.edu.ec
2017 - 2026
45 Publicaciones
4 Proyectos
39 Artículos
0 Libros
0 Capitulos
2 Ponencias
Factors influencing continuity in online education: a replication study in the Ecuadorian university context
2026 Q2 Acceso Abierto
FRONTIERS IN EDUCATION
DOI: https://doi.org/10.3389/feduc…
Resumen:

The rapid development of digital technologies has established e-learning as an essential component of modern higher education. In Ecuador, the expansion of online education has created new challenges…

Quality of educational service in public universities in Ecuador: a sustainable and equitable education approach
2025 Q3 Acceso Abierto
FRONTIERS IN EDUCATION
DOI: https://doi.org/10.3389/feduc…
Resumen:

Introduction: Public universities in Ecuador face persistent structural and contextual challenges that affect the delivery of quality education. Despite institutional efforts, significant gaps remai…

Smart Agriculture in Ecuador: Adoption of IoT Technologies by Farmers in Guayas to Improve Agricultural Yields
2025 Q1 Acceso Abierto
AGRICULTURE
DOI: https://doi.org/10.3390/agric…
Resumen:

The adoption of digital technologies, such as the Internet of Things (IoT), has emerged as a key strategy to improve efficiency, sustainability, and productivity in the agricultural sector, especiall…

Sustainable paper from agricultural residues: differentiating treatment effects in banana pseudostem fibers using X-STATIS multiblock analysis
2025 Q2 Acceso Abierto
Frontiers in Sustainability
DOI: https://doi.org/10.3389/frsus…
Resumen:

Introduction: The sustainable valorization of agricultural waste is key to advancing circular economy models and reducing environmental impacts. Banana pseudostem (Musa spp.), an abundant byproduct o…

Evaluation of the Biodegradation Potential of Phytopathogenic Fungi in Sugar Cane (Saccharum officinarum) Waste from the Rural Sector of Milagro, Ecuador
2025 Q2 Acceso Abierto
APPLIED SCIENCES (SWITZERLAND)
DOI: https://doi.org/10.3390/app15…
Resumen:

Abstract: In Ecuador, sugarcane (Saccharum officinarum) is a grass of great socioeconomic impact due to the employment rate involved in its cultivation and its use as a raw material for obtaining s…

Data Mining to Evaluate the Effect of Eichhornia crassipes and Lemna minor in the Phytoremediation of Wastewater in the Canton of Milagro
2025 Q1 Acceso Abierto
WATER
DOI: https://doi.org/10.3390/w1710…
Resumen:

El incremento constante de la industrialización y urbanización ha dado lugar a un vertido regular de aguas residuales al medio ambiente en cantidades excesivas, lo que ha generado impactos signific…

Modeling of the Physicochemical and Nutritional Composition of Musa paradisiaca (Williams Variety) at Different Ripening Stages in Ecuador
2025 Q1 Acceso Abierto
AGRICULTURE
DOI: https://doi.org/10.3390/agric…
Resumen:

The banana (Musa paradisiaca AAA) is a tropical fruit native to Southeast Asia, widely cultivated in over 130 tropical and subtropical countries. It plays a vital role in both rural and urban diets a…

Analysis of the Impact of Information Behavior on the Marketing and Fertilization Strategies of Small Cocoa Producers in the Provinces of Guayas and Los Ríos in Ecuador
2025 Q1 Acceso Abierto
AGRICULTURE
DOI: https://doi.org/10.3390/agric…
Resumen:

The main barriers faced by small-scale cocoa producers in Ecuador are the limited access to and the use of information technologies, which affects their efficiency in production and marketing. This s…

Nutritional and Biochemical Characterization of White and Brown Rice (Oryza sativa) Subjected to Different Pest Control Methods
2025 Q2 Acceso Abierto
APPLIED SCIENCES (SWITZERLAND)
DOI: https://doi.org/10.3390/app15…
Resumen:

Rice is a vital component of the Ecuadorian diet and plays a significant role in global food security. Agricultural practices aimed at boosting production can, however, compromise grain quality. This…

Industry 4.0 in logistics management in Latin America: A Bibliometric Review
2025 Q2 Acceso Abierto
Journal of Industrial Engineering and Management
DOI: https://doi.org/10.3926/jiem.…
Resumen:

Purpose: This research aims to identify the use of Industry 4.0 in logistics management in Latin America through a bibliometric review of different databases. Design/methodology/approach: This stu…

Evaluation of the Performance of Information Competencies in the Fertilization and Trade Strategies of Small Banana Producers in Ecuador
2025 Q1 Acceso Abierto
SUSTAINABILITY
DOI: https://doi.org/10.3390/su170…
Resumen:

The information perceived by producers plays a crucial role in the efficient management of the agricultural production chain, encompassing both the fertilization and marketing processes of the final …

Evaluation of the Quality Properties of Paper Derived from Bacterial Cellulose from Banana Peels and Pineapple Peels: A Multivariate Statistical Analysis
2024 Q4 Acceso Abierto
Key Engineering Materials
DOI: https://doi.org/10.4028/p-095…
Resumen:

Abstract. The Ecuadorian of rawmaterials to replace wood pulp in paper production and its derivatives to reduce production costs. Therefore, this study aims to evaluate the quality properties of pape…

Application of Multivariate Statistical Methods to the properties of a prototype paper based on Bacterial Cellulose derived from fermentations of banana peel and pineapple peel
2024 Q2 Acceso Abierto
APPLIED SCIENCES (SWITZERLAND)
DOI: https://doi.org/10.3390/app14…
Resumen:

The primary objective of this research is to evaluate the feasibility of two of the most prevalent ag-ricultural residues in Ecuador, banana peels and pineapple peels, as a carbon source in the cultu…

Educational Design in the Adoption of ICT for Sustainable Digital Learning in Social and Business Sciences: A Structural Equation Model
2024 Q2 Acceso Abierto
SUSTAINABILITY
DOI: https://doi.org/10.3390/su162…
Resumen:

Currently, teaching and learning are significantly influenced by Information and Com-munication Technologies (ICT), especially in a constantly evolving technological environment. The objective of thi…

Assessing Feeding Regimes and Its Impact on Tilapia (Oreochromis sp.) Performance and Aquaculturist Perceptions in Aquaculture
2024 Q3 Acceso Abierto
EGYPTIAN JOURNAL OF AQUATIC BIOLOGY AND FISHERIES
DOI: https://dx.doi.org/10.21608/e…
Resumen:

Este estudio evaluó el efecto de cuatro regímenes de alimentación diferentes sobre el crecimiento, la salud, la eficiencia económica y la percepción de los acuicultores con respecto a Oreochromis sp.…

Aquaponics for Biological Regeneration of Water Quality in the Red Tilapia (Oreochromis sp.) Farming Systems and Its Impact on the Ecuadorian Consumer's Perception
2024 Q3 Acceso Abierto
EGYPTIAN JOURNAL OF AQUATIC BIOLOGY AND FISHERIES
DOI: https://dx.doi.org/10.21608/e…
Resumen:

La tilapia roja es una especie acuática ampliamente cultivada en Ecuador debido a su valor comercial y demanda mundial. Sin embargo, como en toda actividad acuícola, el cultivo de tilapia roja a alta…

Three-Dimensional Analysis of the Impact of Different Concentrations of Glyphosate on the Growth of Cocoa (Theobroma cacao)
2024 Q2 Acceso Abierto
APPLIED SCIENCES (SWITZERLAND)
DOI: https://doi.org/10.3390/app14…
Resumen:

Ecuadorian cocoa possesses important organoleptic characteristics such as aroma and flavor, called fine and aromatic cocoa. The objective of this study was to evaluate the initial growth responses …

Efecto de las interacciones genotipo × ambiente en el rendimiento y la estabilidad de las variedades de caña de azúcar en Ecuador: análisis de biplot GGE por ubicación y año
2024 Q2 Acceso Abierto
APPLIED SCIENCES (SWITZERLAND)
DOI: https://doi.org/10.3390/app14…
Resumen:

El rendimiento y la estabilidad son características deseables que los cultivos necesitan para tener un alto valor agronómico; la caña de azúcar se destaca a nivel mundial debido a su diversa gama de …

APPLICATION OF BIPLOT TECHNIQUES TO EVALUATE THE POTENTIAL OF TRICHODERMA SPP. AS A BIOLOGICAL CONTROL OF MONILIASIS IN ECUADORIAN CACAO
2024 Q2 Acceso Abierto
APPLIED SCIENCES (SWITZERLAND)
DOI: https://doi.org/10.3390/app14…
Resumen:

Cocoa, a crop with great socioeconomic impact in Ecuador, faces continuous challenges that undermine the quality and yield of the crops. Moniliasis, a phytosanitary problem that is difficult to contr…

Assessment of Bacterial Cellulose from Komagataeibacter medellinensis Derived from Agricultural Waste and its Influence on Artemia Larval Culture
2024 Q3 Acceso Abierto
EGYPTIAN JOURNAL OF AQUATIC BIOLOGY AND FISHERIES
Resumen:

The production of bacterial cellulose is an innovative and sustainable biotechnological process that harnesses the extracellular metabolism of bacteria to convert diverse organic substrates into cell…

PRODUCTION AND EVALUATION OF PLEUROTUS SPP. HYBRIDS CULTIVATED ON ECUADORIAN AGRO-INDUSTRIAL WASTES: USING MULTIVARIATE STATISTICAL METHODS
2023 Q2 Acceso Abierto
SUSTAINABILITY
DOI: 10.3390/su152115546
MULTIVARIATE STATISTICAL TECHNIQUES: A NEW APPROACH TO IDENTIFY THE COMMERCIAL PROPERTIES OF MIXTURES OF FLOURS OF LENTINULA EDODES AND COCOA POD HUSK
2023 Q2 Acceso Abierto
JOURNAL OF FUNGI
DOI: 10.3390/jof9100991
Multivariate Analysis of Factors Related to Emotional Regulation and Executive Functions in Adolescents Post Covid-19
2023 Acceso Abierto
MIGRATION LETTERS
Resumen:

The confinement by Covid 19 affected several aspects of the lives of human beings. In addition to the health affectation, there was evidence of havoc in the emotional life of the people, in this case…

ECO-FRIENDLY BIOCONTROL OF MONILIASIS IN ECUADORIAN COCOA USING BIPLOT TECHNIQUES
2023 Q1 Acceso Abierto
SUSTAINABILITY
DOI: 10.3390/su15054223
FOOD SUSTAINABILITY STUDY IN ECUADOR: USING PCA BIPLOT AND GGE BIPLOT
2022 Q1 Acceso Abierto
SUSTAINABILITY
DOI: 10.3390/ su142013033
DATA MINING TECHNIQUES: NEW METHOD TO IDENTIFY THE EFFECTS OF AQUACULTURE BINDER WITH SARDINE ON DIETS OF JUVENILE LITOPENAEUS VANNAMEI
2022 Q1 Acceso Abierto
SUSTAINABILITY
DOI: 10.3390/su14074203
ANÁLISIS DE VULNERABILIDAD SOCIOECONÓMICA ANTE EVENTOS CLIMÁTICOS EN LOS CANTONES SANTA ELENA Y LA LIBERTAD
2021 Acceso Abierto
ECUADORIAN SCIENCE JOURNAL
DOI: 10.46480/esj.5.4.175
DATA-MINING TECHNIQUES: A NEW APPROACH TO IDENTIFYING THE LINKS AMONG HYBRID STRAINS OF PLEUROTUS WITH CULTURE MEDIA
2021 Q1 Acceso Abierto
JOURNAL OF FUNGI
DOI: 10.3390/jof7100882
APPLICATION OF K-MEANS CLUSTERING ALGORITHM TO COMMERCIAL PARAMETERS OF PLEUROTUS SPP. CULTIVATED ON REPRESENTATIVE AGRICULTURAL WASTES FROM PROVINCE OF GUAYAS
2021 Q1 Acceso Abierto
JOURNAL OF FUNGI
DOI: 10.3390/jof7070537
PRODUCTION OF BIOMASS AND EXOPOLYSACCHARIDES OBTAINED FROM PLEUROTUS HYBRID STRAINS UNDER DIFFERENT PHS TO REMOVE HEAVY METALS IN AQUACULTURE EFFLUENTS
2021 Q4 Acceso Abierto
EGYPTIAN JOURNAL OF AQUATIC BIOLOGY AND FISHERIES
DOI: 10.21608/EJABF.2021.166248
CHEMICAL AND PRODUCTIVITY CHARACTERIZATION OF PARENTAL AND HYBRID STRAINS OF LENTINULA EDODES CULTIVATED IN DIFFERENT AGRICULTURAL RESIDUES
2021 Q3 Acceso Abierto
EMIRATES JOURNAL OF FOOD AND AGRICULTURE - EJFA
DOI: 10.9755/ejfa.2021.v33.i3.2668
STUDY ABOUT THE USE OF AQUACULTURE BINDER WITH TUNA ATTRACTANT IN THE FEEDING OF WHITE SHRIMP (LITOPENAEUS VANNAMEI)
2020 Q3 Acceso Abierto
REVISTA MEXICANA DE INGENIERÍA QUÍMICA-RMIQ
MODELING OF MICELIAL GROWTH OF PARENTAL, HYBRID AND RECONSTITUTED STRAINS OF PLEUROTUS AND LENTINULA
2020 Q3 Acceso Abierto
REVISTA MEXICANA DE INGENIERÍA QUÍMICA-RMIQ
CHEMICAL COMPOSITION AND BIOLOGICAL PROPERTIES OF PLEUROTUS SPP. CULTIVATED ON PEAT MOSS AND WHEAT STRAW
2019 Q3 Acceso Abierto
EMIRATES JOURNAL OF FOOD AND AGRICULTURE - EJFA
DOI: 10.9755/ejfa.2019.v31.i11.2034
BIODEGRADATION OF PLANTAIN RACHIS USING PHYTOPATHOGENIC FUNGI FOR COMPOSTING
2019 Q3
REVISTA MEXICANA DE INGENIERÍA QUÍMICA-RMIQ
CHARACTERIZATION OF PLEUROTUS DJAMOR NEOHAPLONTS RECOVERED BY PRODUCTION OF PROTOPLASTS AND CHEMICAL DEDIKARYOTIZATION
2019 Q2
3 BIOTECH - 3B
DOI: 10.1007/s13205-018-1532-4
BIOCONVERSION OF AGRICULTURAL WASTES USING PARENTAL, HYBRID AND RECONSTITUTED STRAINS OF PLEUROTUS AND LENTINULA
2018 Q3 Acceso Abierto
REVISTA MEXICANA DE INGENIERÍA QUÍMICA-RMIQ
PLEUROTUS SPP. CULTIVATION ON BRACHIARIA SP. STRAW TREATMENT WITH ALKALINE WATER
2018 Q3
BRAZILIAN JOURNAL OF MICROBIOLOGY
PRODUCTION OF HYBRID STRAINS AMONG PLEUTORUS AND LENTINULA AND EVALUATION OF THEIR MYCELIAL GROWTH KINETICS ON MALT EXTRACT AGAR AND WHEAT GRAIN USING THE GOMPERTZ AND HILL MODELS
2017 Q3
EMIRATES JOURNAL OF FOOD AND AGRICULTURE - EJFA
DOI: 10.9755/ejfa.2017.v29.i12.1563