Juan Carlos Lucas Aguirre, German Antonio Giraldo Giraldo and Misael Cortés Rodríguez
In order to understand interactions aw vs equilibrium moisture content (EMC) in fortified coconut powder, moisture sorption isotherms were constructed under different storage…
Abstract
Purpose
In order to understand interactions aw vs equilibrium moisture content (EMC) in fortified coconut powder, moisture sorption isotherms were constructed under different storage conditions in order to predict the changes in their physical, chemical and microbiological properties that occur during storage and processing, which are unique to each food.
Design/methodology/approach
For which the moisture sorption isotherms were determined at three different temperatures (15, 25 and 35 °C), in a range of water activity from 0.1 to 0.90. Nine models, namely, the GAB, BET, Oswin, Smith, Halsey, Henderson, Chung and Pfost, Peleg and Caurie equations, were fitted to the sorption data. Various statistical tests were adopted as criteria to evaluate the fit performance of the models.
Findings
Of the models tested, the Peleg model gave the best fit to experimental data (R2 = 0.997; RMSE = 0.276), across the full range of water activities and at different temperatures. Humidity of the monolayer (mo) was found between 2.54 and 2.34%, a fundamental parameter to define the storage and control conditions, given that it is considered the value at which the product is more stable. The net sorption isosteric heat (Qst) increased to maximum and then diminished with increased moisture content (Xw); maximum values were obtained in the Xw interval between 0.48 and 2.87% (db), being between 35.72 and 99.26 kJ/mol, where the maximum value indicates coverage of the strongest bond sites and higher adsorbate-adsorbent interaction.
Originality/value
These results provide reliable experimental data on water absorption isotherms of the CP + FAC important to determine optimal processing, storing and packaging conditions.
Details
Keywords
Juan Carlos Aguirre, Marco Leonardo Peralta Zuñiga, Pedro Mora and Francisco Blanco
This article is based on the assumption that entrepreneurship improves quality of life (HDI). Its main objective is to establish causal relationships between entrepreneurship…
Abstract
Purpose
This article is based on the assumption that entrepreneurship improves quality of life (HDI). Its main objective is to establish causal relationships between entrepreneurship variables such as credits, innovation (R&D), business growth, foreign direct investment and the Global Competitiveness Index and how these have influenced a country's development.
Design/methodology/approach
To analyse and validate this assumption, relevant information has been extracted about Ecuador (the subject of the study) for the 1998–2017 period. The information has received the respective econometric treatment, through a multivariate estimation by the autoregressive vector (ARV) method that made it possible to establish impulse-response functions.
Results
The results indicate that there is a significant and positive statistical impact between the variables related to entrepreneurship and quality of life (HDI), with the exception of “Innovation”, which is not representative in the model, demonstrating that the investment made at country level in R&D is not sufficient to have an impact on the HDI. It was also determined that promoting entrepreneurship would be useful as this would alter the trend of the variables, making them conducive to increasing the HDI.
Originality/value
This article is one of the few to address this issue. It includes the self-regressive vector model as a key methodology used to evaluate and establish public policies. RVM has provided positive results in the field of economics and can be adopted in the area of entrepreneurship.
Propósito
El presente artículo se basa en el supuesto de que el emprendimiento mejora la calidad de vida de los individuos (IDH), siendo el objetivo principal establecer relaciones causales entre variables de emprendimiento como: Créditos, Innovación (I + D), Crecimiento Empresarial, Inversión Extranjera Directa e Índice de Competitividad Global; y, como estas han influido en el desarrollo de un país.
Diseño/metodología/enfoque
Para el análisis y validación del supuesto mencionado anteriormente, se ha extraído información relevante sobre el Ecuador (sujeto de estudio) para el período comprendido entre 1998 y 2017, a los cuales se les ha dado el respectivo tratamiento econométrico, a través de una estimación multivariante por el método de Vectores Autorregresivos (VAR) que permitió establecer funciones de impulso – respuesta.
Resultados
Los resultados señalan que existe una significativa incidencia estadística entre las variables relacionadas con el emprendimiento y la calidad de vida (IDH) de manera positiva, a excepción de la “Innovación” que no tiene representatividad en el modelo, demostrando que la inversión realizada a nivel país en I + D es insuficiente para impactar el IDH. También se determinó la conveniencia de impulsar el emprendimiento, pues esto cambia la tendencia de las variables haciéndolas favorables para el crecimiento del IDH.
Originalidad/valor
Este artículo es uno de los pocos en abordar esta problemática, además incluye el Modelo de Vectores Autorregresivos como una metodología clave para evaluar y establecer políticas públicas, que ha brindado resultados positivos en el campo de la Economía y que puede adoptarse en la rama del Emprendimiento.
Details
Keywords
Lina M. Gómez and Ramón W. Borges-Tavárez
The chapter examines the employment of unique social media concepts (e.g., dialogue, engagement, mobilization, authenticity, influence, and transparency) for CSR communication…
Abstract
The chapter examines the employment of unique social media concepts (e.g., dialogue, engagement, mobilization, authenticity, influence, and transparency) for CSR communication among top companies in Latin America. A quantitative content analysis of 1,000 tweets from corporate official accounts of the top 25 largest firms in the Latin Trade ranking was performed. Tweets were randomly selected if contained hashtags or keywords related to CSR concepts (CSR, sustainability, citizenship, society, environment, etc.). Transparency was the social media concept most employed on CSR-related messages on Twitter. However, most of the companies did not include any of the social media features analyzed. The results of this chapter are consistent with previous studies that social media is used as another traditional informational channel. This work only analyzed tweets sent by Latin American companies, it did not take into consideration responses to messages (replies or retweets of the followers of each company). Future studies can examine stakeholders’ response regarding CSR communication for in-depth analysis of the use of social media by Latin American companies. Organizations and companies can benefit from the results of this work in order to craft effective content on social media that includes features and strategies that can resonance to different groups of stakeholders. CSR social media communication studies that focused on Latin America are scarce. Our study is pioneer in analyzing the usage of social media concepts for CSR communication in Latin America.
Details
Keywords
Rafael Ravina-Ripoll, Luis M. Romero-Rodríguez and Eduardo Ahumada-Tello
The present research aims to study the correlations among organizational climate, academic satisfaction and organizational commitment as factors that influence happiness at work…
Abstract
Purpose
The present research aims to study the correlations among organizational climate, academic satisfaction and organizational commitment as factors that influence happiness at work by applying a structural equation model to Spanish National Police cadets.
Design/methodology/approach
A descriptive, quantitative, correlational, exploratory and cross-sectional empirical study was carried out. A measurement instrument was applied to a target population of 397 student-inspectors enrolled for the 2018–2020 academic year on the executive scale at the National Police School (EPN) in Spain. A sample of 190 surveys was obtained, of which 33 were open competition, 52 were competitive examinations and 105 were selective seniority.
Findings
Structural equation modeling shows that academic satisfaction, organizational climate and practical organizational commitment are recommended variables for assessing happiness within organizations. On the other hand, there is a bit of a positive relationship between happiness and practical organizational commitment. The same is not true for the parameters of academic satisfaction and organizational climate.
Originality/value
This study fills a gap in the literature on the analysis of governance models in public administration. This is particularly relevant in professions that require a high degree of engagement with citizens, such as police officers. According to the authors’ knowledge, this study is one of the first works to analyze corporate governance in police cadet schools in Spain under the happiness management approach. It contributes by offering a better understanding of the psychosocial variables that affect the existence of good governance.