Personal administrativohttps://hdl.handle.net/20.500.12724/175522024-03-29T10:05:22Z2024-03-29T10:05:22ZTechnological Context of Kindergarten Education Teachers in Peru before E-teaching due to covid-19. Prepandemic DiagnosisGonzales-Macavilca, MiltonAguinaga Villegas, Maricielo Judithhttps://hdl.handle.net/20.500.12724/195962024-02-12T14:11:00Z2021-01-01T00:00:00ZTechnological Context of Kindergarten Education Teachers in Peru before E-teaching due to covid-19. Prepandemic Diagnosis
Gonzales-Macavilca, Milton; Aguinaga Villegas, Maricielo Judith
This study with a quantitative, descriptive and trend approach aims to determine the situation of technological resources that kindergarten teachers had in Peru, just before the transition to e-teaching due to covid-19. To do this, three Surveys to Peruvian Teachers (ENDO) carried out by Ministerio de Educacion del Peru before the pandemic, in 2014, 2016 and 2018 were analyzed. The total of kindergarten teachers who participated in each year, respectively, were: 1593 (74.2 % = urban, 25.8 % = rural), 1759 (76.8 % = urban, 23.2 % = rural) and 2935 (82.2 % = urban, 17.8 % = rural). After analyzing the three variables that make up the technological context dimension (electricity access, technological devices access and internet access) it can be concluded that the trends, in general, were positive, but insufficient, especially in terms of internet access, and especially in the rural areas of the Peruvian jungle.
2021-01-01T00:00:00ZElecciones presidenciales en el Perú: minería de textos de los editoriales del diario La RepúblicaCastro Cáceres, Mariela LucinaDavid Alejandro, Chávez SalazarUrbizagástegui-Alvarado, Rubénhttps://hdl.handle.net/20.500.12724/190662024-02-18T18:15:06Z2023-01-01T00:00:00ZElecciones presidenciales en el Perú: minería de textos de los editoriales del diario La República
Castro Cáceres, Mariela Lucina; David Alejandro, Chávez Salazar; Urbizagástegui-Alvarado, Rubén
Analiza los editoriales del periódico peruano La República publicados del 5 de mayo al 6 de junio de 2021, fechas en las que se llevaron a cabo las campañas políticas de la segunda vuelta electoral para ocupar la presidencia del Perú. Se pretende descubrir información relevante para entender el uso de las terminologías comunicadas a través del lenguaje escrito en ese periódico. Mediante la técnica de minería de texto y los algoritmos de aprendizaje automático para el análisis de los datos no estructurados, se creó un dendrograma y clústeres para validar y estimar las agrupaciones de los términos más frecuentes. En relación a cada candidato, el análisis de regresión muestra una asociación diferenciada en el uso de las palabras. Estas palabras conforman una red que expresa la coyuntura política del período en estudio y se refuerza con la construcción de una nube de palabras de mayor frecuencia de uso. Se concluye que los medios de comunicación construyen sus propias representaciones sociales sobre diversos temas locales y nacionales de modo que consciente o inconscientemente evidencian sus preferencias. Estas preferencias no son ajenas en los editoriales del diario La República. La importancia de realizar este tipo de estudio radica en el potencial que tiene la teoría de las representaciones sociales para colocar al investigador frente a la posición que tienen los sujetos, que construyen y comunican los embates antagónicos de la realidad social nacional.; It analyzes the editorials of the Peruvian newspaper La República published from May 5 to June 6, 2021, dates in which the political campaigns for the second round of elections for the presidency of Peru took place. The aim is to discover relevant information to understand the use of the terminologies communicated through the written language in that newspaper. Using the text mining technique and machine learning algorithms for the analysis of unstructured data, a dendrogram and clusters were created to validate and estimate the groupings of the most frequent terms. In relation to each candidate, the regression analysis shows a differentiated association in the use of words. These words form a network that expresses the political conjuncture of the period under study and is reinforced by the construction of a cloud of words with the highest frequency of use. It is concluded that the media construct their own social representations on various local and national issues in a way that consciously or unconsciously evidences their preferences. These preferences are not foreign in the editorials of the newspaper La República. The importance of conducting this type of study lies in the potential of the theory of social representations to place the researcher in front of the position held by the subjects, who construct and communicate the antagonistic onslaughts of the national social reality.
2023-01-01T00:00:00ZCo-Microencapsulation of Sacha Inchi (Plukenetia huayllabambana) Oil with Natural Antioxidants ExtractsChasquibol Silva, Nancy AscenciónGonzales Garcia, Billy FranciscoAlarcón Rivera, RafaelSotelo Contreras, AxelGallardo, GabrielaGarcía, BelénPérez-Camino, María del Carmenhttps://hdl.handle.net/20.500.12724/184932024-02-18T18:15:24Z2023-01-01T00:00:00ZCo-Microencapsulation of Sacha Inchi (Plukenetia huayllabambana) Oil with Natural Antioxidants Extracts
Chasquibol Silva, Nancy Ascención; Gonzales Garcia, Billy Francisco; Alarcón Rivera, Rafael; Sotelo Contreras, Axel; Gallardo, Gabriela; García, Belén; Pérez-Camino, María del Carmen
Sacha inchi (Plukenetia huayllabambana) oil was co-microencapsulated with natural antioxidant extracts (NAE), such as camu-camu (Myrciaria dubia (HBK) Mc Vaugh) fruit, Añil variety Andean potato (Solanum tuberosum andigenum, and elderberry fruit (Sambucus peruviana). Gum Arabic and the ternary combination of gum Arabic (GA) + maltodextrin (MD) + whey protein isolate (WPI) at different formulations were used as coating materials for the encapsulation process using spray-drying. The moisture content, particle size distribution and morphology, total phenolic content, antioxidant activity, fatty acid and sterol composition, oxidative stability, and shelf-life were evaluated. Co-microcapsules of sacha inchi (P. huayllabambana) oil with camu camu skin extract (CCSE) at 200 ppm encapsulated with GA + MD + WPI had the highest total polyphenol content (4239.80 µg GAE/g powder), antioxidant activity (12,454.00 µg trolox/g powder), omega-3 content (56.03%), ß-sitosterol (62.5%), greater oxidative stability (Oxidation Onset temperature of 189 °C), higher shelf-life (3116 h), and smaller particle sizes (6.42 µm). This research enhances the knowledge to obtain microcapsules containing sacha inchi (P. huayllabambana) oil with natural antioxidant extracts that could be used for the development of functional foods. Further research is needed to study the potential interactions and their influence between the bioactive components of the microcapsules and the challenges that may occur during scale-up to industrial production.
2023-01-01T00:00:00ZOptimisation and Characterisation of the Protein Hydrolysate of Scallops (Argopecten purpuratus) Visceral By-ProductsChasquibol Silva, Nancy AscenciónGonzales Garcia, Billy FranciscoAlarcón Rivera, RafaelSotelo Contreras, AxelMárquez-López, José CarlosRodríguez-Martin, Noelia M.Millán-Linares, María del CarmenMillán, FranciscoPedroche, Justohttps://hdl.handle.net/20.500.12724/183332024-02-18T18:15:42Z2023-01-01T00:00:00ZOptimisation and Characterisation of the Protein Hydrolysate of Scallops (Argopecten purpuratus) Visceral By-Products
Chasquibol Silva, Nancy Ascención; Gonzales Garcia, Billy Francisco; Alarcón Rivera, Rafael; Sotelo Contreras, Axel; Márquez-López, José Carlos; Rodríguez-Martin, Noelia M.; Millán-Linares, María del Carmen; Millán, Francisco; Pedroche, Justo
In this research, scallops (Argopecten purpuratus) visceral meal (SVM) and defatted meal (SVMD) were analysed for their proximal composition, protein solubility, and amino acid profile. Hydrolysed proteins isolated from the scallop’s viscera (SPH) were optimised and characterised using response surface methodology with a Box-Behnken design. The effects of three independent variables were examined: temperature (30–70 °C), time (40–80 min), and enzyme concentration (0.1–0.5 AU/g protein) on the degree of hydrolysis (DH %) as a response variable. The optimised protein hydrolysates were analysed for their proximal composition, yield, DH %, protein solubility, amino acid composition, and molecular profile. This research showed that defatted and isolation protein stages are not necessaries to obtain the hydrolysate protein. The conditions of the optimization process were 57 °C, 62 min and 0.38 AU/g protein. The amino acid composition showed a balanced profile since it conforms to the Food and Agriculture Organisation/World Health Organisation recommendations for healthy nutrition. The predominant amino acids were aspartic acid + asparagine, glutamic acid + Glutamate, Glycine, and Arginine. The protein hydrolysates’ yield and DH % were higher than 90% and close to 20%, respectively, with molecular weight between 1–5 kDa. The results indicate that the protein hydrolysates of scallops (Argopecten purpuratus) visceral by product optimised and characterised was suitable a lab-scale. Further research is necessary to study the bioactivity properties with biologic activity of these hydrolysates.
Indexado en Scopus
2023-01-01T00:00:00Z