García-Caldera, Nelsy
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García-Caldera, Nelsy
Official Name
García Caldera, Nelsy
Alternative Name
ngarciac
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ORCID
Scopus Author ID
57199229867
Researcher ID
M-8661-2018

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Repensando la evaluación del aprendizaje: una perspectiva desde la reingeniería de la gestión

2020 , García-Caldera, Nelsy

Los modelos de gestión en la educación superior se han estructurado en forma de burocracias profesionales y maquinales de acuerdo con el modelo planteado por Mintzberg (1984). Esto ha propiciado que sus procesos, incluidos aquellos relacionados con la enseñanza y el aprendizaje, se organicen desde una visión fabril estandarizante, orientada a la obtención de productos tangibles, en un contexto estable. No obstante, el presente y futuro de la universidad se sitúa en un entorno incierto, lo cual insta cambios sustanciales al interior de las instituciones de educación superior. El presente ensayo aborda una propuesta de reingeniería para un proceso de evaluación del aprendizaje, con la finalidad de que este contribuya a la formación de los y las estudiantes, evitando que la evaluación se convierta en un fin en sí misma. Para ello, se establece la necesidad de implementar de un modelo holístico orientado hacia la gestión del conocimiento, el cual sea capaz de motivar el aprendizaje dentro de la institución.

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Amaranth Pasta in Mexico: A Celiac Overview

2017 , García-Caldera, Nelsy , Velázquez-Contreras, Friné

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Effect of PLA Active Packaging Containing Monoterpene-Cyclodextrin Complexes on Berries Preservation

2021 , Velázquez-Contreras, Friné , García-Caldera, Nelsy , José Daniel Padilla de la Rosa , Domingo Martínez-Romero , Estrella Núñez-Delicado , José Antonio Gabaldón

Blackberries and raspberries are highly perishable and fragile products, which limits their shelf life. The effect of biodegradable active packaging of blackberries and raspberries containing 2.5% and 5.0% weight (wt%) of thymol or carvacrol complexed in β-cyclodextrins (β-CDs), successively added to poly (lactic acid) (PLA), and melt-processed by injection molding was evaluated under stored conditions at 4 °C for 21 days, using as reference commercial clamshell and PLA package control samples. Thus, physicochemical, headspace, microbiological, and sensory quality studies were carried out in order to compare the efficacy of the different packages. Concerning weight loss, color, and total phenolic and soluble solids content, significant differences were detected when compared with commercial clamshell packaging. The results show that the PLA packages containing thymol and carvacrol complexes maintained the color, weight, and phenolic content of berries until day 21, with a score up to 45% better compared to commercial clamshell. The headspace analysis detected 101 mg L−1 (ppm) of thymol and 35 ppm of carvacrol on the first day of refrigeration; these concentrations decreased with time. This release mechanism of carvacrol and thymol into the PLA package modified the initial atmosphere composition. After 21 days of storage, the berries had 4.25 degrees of acceptance, without adverse perception of aroma or flavor for both carvacrol and thymol compounds. A general microbial inhibition was observed for yeast and molds, which increased with the concentration of monoterpene in PLA packages, and showed an inhibition of 3.5 log units for PLA packages containing thymol, and of 3 log units for those containing carvacrol. Overall results show that PLA/β-CD-thymol 5.0% packages prolonged raspberries’ and blackberries’ shelf life by one more week at 4 °C, compared with commercial clamshell packaging.

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