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The blood donation process is essential for health systems. Therefore, the ability to predict donor flow has become relevant for hospitals. Although it is possible to predict this behaviour intention from donor questionnaires, the need to reduce social contact in pandemic settings leads to decreasing the extension of these surveys with the minimum loss of predictivity. In this context, this study aims to predict the intention to give blood again, among donors, based on a limited number of attributes. This research uses data science and learning concepts based on symmetry in a particular classification to predict blood donation intent. We carried out a face-to-face survey of Chilean donors based on the Theory of Planned Behaviour. These data, including control variables, were analysed using the decision tree technique. The results indicate that it is possible to predict the intention to donate blood again with an accuracy of 84.17% and minimal variables. The added scientific value of this article is to propose a more simplified way of measuring a multi-determined social phenomenon, such as the intention to donate blood again and the application of the decision tree technique to achieve this simplification, thereby contributing to the field of data science.
Cristian Salazar-Concha; Patricio Ramírez-Correa. Predicting the Intention to Donate Blood among Blood Donors Using a Decision Tree Algorithm. Symmetry 2021, 13, 1460 .
AMA StyleCristian Salazar-Concha, Patricio Ramírez-Correa. Predicting the Intention to Donate Blood among Blood Donors Using a Decision Tree Algorithm. Symmetry. 2021; 13 (8):1460.
Chicago/Turabian StyleCristian Salazar-Concha; Patricio Ramírez-Correa. 2021. "Predicting the Intention to Donate Blood among Blood Donors Using a Decision Tree Algorithm." Symmetry 13, no. 8: 1460.
The lack of blood donors is a global problem that prevents the demand for blood prompted by an ageing population and increased life expectancy from being met. The aim of this study was to conduct an initial exploration of the reasons for using digital platforms in blood donation. Using a Theory of Planned Behaviour (TPB) framework, microdata for 389 participants from Latin American countries and Spain, and Partial Least Square-Structural Equation Modelling (PLS-SEM), the study obtained three main prediction paths. The first two started from feelings of trust in the digital community and a positive mood state associated with a modern lifestyle, and they were linked to attitudes and behavioural control in the explanation of the intention to donate and actual blood donation. The third path started from modern lifestyles, and was linked to the subjective norm in the prediction of intention and actual donation. These paths represent one of the very first attempts to predict intentions of donation and collaborative donation by taking a PLS-SEM approach. By determining the paths underpinning collaborative blood donors’ motives, the results of this study provide strong support for the usefulness of the TPB model within the context of digital platform use and blood donation.
Joan Torrent-Sellens; Cristian Salazar-Concha; Pilar Ficapal-Cusí; Francesc Saigí-Rubió. Using Digital Platforms to Promote Blood Donation: Motivational and Preliminary Evidence from Latin America and Spain. International Journal of Environmental Research and Public Health 2021, 18, 4270 .
AMA StyleJoan Torrent-Sellens, Cristian Salazar-Concha, Pilar Ficapal-Cusí, Francesc Saigí-Rubió. Using Digital Platforms to Promote Blood Donation: Motivational and Preliminary Evidence from Latin America and Spain. International Journal of Environmental Research and Public Health. 2021; 18 (8):4270.
Chicago/Turabian StyleJoan Torrent-Sellens; Cristian Salazar-Concha; Pilar Ficapal-Cusí; Francesc Saigí-Rubió. 2021. "Using Digital Platforms to Promote Blood Donation: Motivational and Preliminary Evidence from Latin America and Spain." International Journal of Environmental Research and Public Health 18, no. 8: 4270.
This paper analyzes the scientific map of technostress and the scientific production on this topic between 1982 and 2017, highlighting its structure, evolution, and trends in this field. A literature review based on bibliometric analysis of 246 records indexed in Scopus database was conducted. These publications were analyzed according to bibliometric indicators and through science maps with SciMAT. Co-occurrence of terms by grouping techniques was implemented. In addition, elaboration of maps of science and performance analysis for periods was executed. The main contribution of this work is to provide the first scientific map of technostress and a detailed understanding of the scientific production that predicts the directions of future research. The bibliometric analyses permit an overview of the growth, extent and distribution of the scientific literature related to the technostress and the study of the scientific production of an institution, country, author or research group.
Cristian Salazar-Concha; Pilar Ficapal-Cusí; Joan Boada-Grau; Luis J. Camacho. Analyzing the evolution of technostress: A science mapping approach. Heliyon 2021, 7, e06726 .
AMA StyleCristian Salazar-Concha, Pilar Ficapal-Cusí, Joan Boada-Grau, Luis J. Camacho. Analyzing the evolution of technostress: A science mapping approach. Heliyon. 2021; 7 (4):e06726.
Chicago/Turabian StyleCristian Salazar-Concha; Pilar Ficapal-Cusí; Joan Boada-Grau; Luis J. Camacho. 2021. "Analyzing the evolution of technostress: A science mapping approach." Heliyon 7, no. 4: e06726.
Many factors and aspects of the construction and operation of buildings depend on climatic parameters and climatic zones, so these will be fundamental for adapting and mitigating the effects of climate change. For this reason, the number of climate-oriented publications in building is increasing. This research presents an analysis on the most-cited climate-oriented studies in building in the period 1979–2019. The main themes, the typologies of these investigations and the principal types of climatic zoning used in these studies were analysed through bibliographic and manual analysis. A broad spectrum of themes directly and indirectly related to climate and climatic zones and buildings was demonstrated. It was found that 88% of all climate-oriented investigations, to one degree or another, are within the scope of the general topic of energy conservation. A thorough understanding of all climate-dependent aspects will help in designing dwellings appropriately in different climate zones. In addition, a methodology that facilitates the establishment of a typology of climate-oriented research is presented. This typology can be used in future research in different scientific areas. It was also revealed that the climate zones of the National Building Codes of China, the USA and Turkey prevailed in the studies analysed.
Konstantin Verichev; Montserrat Zamorano; Cristian Salazar-Concha; Manuel Carpio. Analysis of Climate-Oriented Researches in Building. Applied Sciences 2021, 11, 3251 .
AMA StyleKonstantin Verichev, Montserrat Zamorano, Cristian Salazar-Concha, Manuel Carpio. Analysis of Climate-Oriented Researches in Building. Applied Sciences. 2021; 11 (7):3251.
Chicago/Turabian StyleKonstantin Verichev; Montserrat Zamorano; Cristian Salazar-Concha; Manuel Carpio. 2021. "Analysis of Climate-Oriented Researches in Building." Applied Sciences 11, no. 7: 3251.
El uso de las Tecnologías de la Información y Comunicación puede generar estrés tecnológico. El tecnoestrés comenzó a estudiarse en 1982 y dada la naturaleza dinámica de las tecnologías, cobra importancia evaluar la evolución del concepto y sus consecuencias. El objetivo de este artículo es explorar la estructura intelectual y social de la producción científica sobre el tecnoestrés y analizar la evolución del concepto, detectando las características que influyen en los niveles de tecnoestrés en los individuos. Los resultados indican que las investigaciones más relevantes provienen del área de sistemas de información. El concepto ha evolucionado con el tiempo y sus consecuencias también pueden experimentarlo personas que no trabajan. Concluimos que los programas de prevención deben considerar diferencias individuales, organizacionales y tecnológicas.
Cristian Salazar-Concha; Pilar Ficapal-Cusí; Joan Boada-Grau. Tecnoestrés. Evolución del concepto y sus principales consecuencias. Teuken Bidikay - Revista Latinoamericana de Investigación en Organizaciones, Ambiente y Sociedad 2020, 11, 165 -180.
AMA StyleCristian Salazar-Concha, Pilar Ficapal-Cusí, Joan Boada-Grau. Tecnoestrés. Evolución del concepto y sus principales consecuencias. Teuken Bidikay - Revista Latinoamericana de Investigación en Organizaciones, Ambiente y Sociedad. 2020; 11 (17):165-180.
Chicago/Turabian StyleCristian Salazar-Concha; Pilar Ficapal-Cusí; Joan Boada-Grau. 2020. "Tecnoestrés. Evolución del concepto y sus principales consecuencias." Teuken Bidikay - Revista Latinoamericana de Investigación en Organizaciones, Ambiente y Sociedad 11, no. 17: 165-180.
In the present paper a novel process of the coal ash treatment was developed and analyzed: a high-pressure autoclave HCl leaching of the coal bottom and fly ash from an Omsk coal-fired power plant. This process was applied to extract aluminum from the coal ash into a chloride solution, which can further be used as a coagulant for water treatment. The Al extraction efficiency in this process can reach over 90 % at certain process parameters discussed in the present study. Kinetics of the leaching process were evaluated using different kinetic (e.g. shrinking core) models. A semi-empirical equation was proposed for description of the kinetics of the leaching process as a function of the HCl concentration, solid-to-liquid ratio and temperature. Different mechanisms of the leaching process were also discussed and proposed. Water treatment by the obtained Al-chloride showed good results compared to an industrial coagulant; the treated water parameters were within the limits recommended by the World Health Organization for drinkable water.
Dmitry Valeev; Irina Kunilova; Andrei Shoppert; Cristian Salazar-Concha; Alex Kondratiev. High-pressure HCl leaching of coal ash to extract Al into a chloride solution with further use as a coagulant for water treatment. Journal of Cleaner Production 2020, 276, 123206 .
AMA StyleDmitry Valeev, Irina Kunilova, Andrei Shoppert, Cristian Salazar-Concha, Alex Kondratiev. High-pressure HCl leaching of coal ash to extract Al into a chloride solution with further use as a coagulant for water treatment. Journal of Cleaner Production. 2020; 276 ():123206.
Chicago/Turabian StyleDmitry Valeev; Irina Kunilova; Andrei Shoppert; Cristian Salazar-Concha; Alex Kondratiev. 2020. "High-pressure HCl leaching of coal ash to extract Al into a chloride solution with further use as a coagulant for water treatment." Journal of Cleaner Production 276, no. : 123206.
Globally, xenocentrism has emerged as a significant concept to understand consumer behavior regarding local and foreign products. In this context and based on a sample of Colombian customers, this investigation aims to analyze both the direct and indirect effects of xenocentrism on the consumer purchase intentions of imported products through product attitudes and perceived product quality. Xenocentrism was measured using the XSCALE, and the research model was analyzed with partial least squares structural equation modeling. The result indicates that xenocentrism has a positive direct effect on purchase intentions, perceived product quality, and product attitudes. The analysis also shows that product attitudes will partially mediate the effect between xenocentrism and purchase intentions. In light of these findings, xenocentrism in Latin America arises as a solid construction to explain consumer behavior, mainly when individuals’ beliefs generate a positive appreciation of the purchase of imported products that compete in local markets. Moreover, these results permit designing sustainable marketing strategies that are more suited to the xenocentrism of Latin American consumers.
Luis J. Camacho; Cristian Salazar-Concha; Patricio Ramírez-Correa. The Influence of Xenocentrism on Purchase Intentions of the Consumer: The Mediating Role of Product Attitudes. Sustainability 2020, 12, 1647 .
AMA StyleLuis J. Camacho, Cristian Salazar-Concha, Patricio Ramírez-Correa. The Influence of Xenocentrism on Purchase Intentions of the Consumer: The Mediating Role of Product Attitudes. Sustainability. 2020; 12 (4):1647.
Chicago/Turabian StyleLuis J. Camacho; Cristian Salazar-Concha; Patricio Ramírez-Correa. 2020. "The Influence of Xenocentrism on Purchase Intentions of the Consumer: The Mediating Role of Product Attitudes." Sustainability 12, no. 4: 1647.
La investigación aborda el efecto de distintas variables en el precio de servicios hoteleros en Chile, examinando si existe una correlación entre el puntaje asignado por los usuarios a un servicio y el precio de dicho servicio. Un grupo de 145 hoteles disponibles en Booking.com para la ciudad de Santiago de Chile fueron examinados para conducir el análisis. A partir del uso de un modelo de regresión lineal multivariada, estos hoteles fueron examinados en tres temporadas (alta, media y baja). Los resultados muestran una correlación positiva entre el precio de los hoteles y el puntaje otorgado por los usuarios. Además se encontraron otras variables que inciden en el precio, tales como localización geográfica y número de comentarios. Los resultados sugieren que la industria hotelera debiera prestar una mayor atención a la gestión de los comentarios para una mejor posición de precios en el mercado. Esto implica gestionar una política de post venta para monitorear la experiencia de los huéspedes y adoptar las correspondientes medidas correctivas para mejorar la experiencia del usuario.
Cristian M. Mondaca-Marino; Cesar Guala; Alba L. Montecinos-Astorga; Cristian Salazar Concha. Factores que Influyen en el Precio de Hoteles en Booking.com. El Caso de Santiago de Chile. Información tecnológica 2019, 30, 87 -96.
AMA StyleCristian M. Mondaca-Marino, Cesar Guala, Alba L. Montecinos-Astorga, Cristian Salazar Concha. Factores que Influyen en el Precio de Hoteles en Booking.com. El Caso de Santiago de Chile. Información tecnológica. 2019; 30 (1):87-96.
Chicago/Turabian StyleCristian M. Mondaca-Marino; Cesar Guala; Alba L. Montecinos-Astorga; Cristian Salazar Concha. 2019. "Factores que Influyen en el Precio de Hoteles en Booking.com. El Caso de Santiago de Chile." Información tecnológica 30, no. 1: 87-96.
Este artículo tiene como objetivos analizar las relaciones entre sindicatos y distintos actores en la región de Los Ríos en Chile, e identificar los principales factores que influyen en la disminución de los trabajadores afiliados. Se desarrolló una investigación de tipo descriptiva, con diseño no experimental, transeccional, de campo. Se aplicaron cuatro cuestionarios distintos a 72 actores que interactúan con los sindicatos como son: trabajadores, sindicalizados y no sindicalizados, empresarios de distintas organizaciones de la región y entidades del Estado. Los resultados revelan como principales causas de la baja afiliación a sindicatos: los beneficios que adquieren los sindicalizados son los mismos otorgados a los que no están sindicalizados; las altas cuotas de afiliación que algunos sindicatos establecen; el tiempo que demandan las reuniones; y una discriminación en ambos sentidos, entre los trabajadores sindicalizados y los no sindicalizados. Se concluye que las relaciones entre los sindicatos y los distintos actores involucrados son buenas o excelentes, por lo que el sistema tiende a la concertación y no a la confrontación y, asimismo, que la desafiliación se explica debido a que los trabajadores dejan de sentirse identificados con los dirigentes y/o no están de acuerdo con sus visiones, estilo de liderazgo y gestión.
Horacio Sanhueza Burgos; Cristian Eduardo Salazar Concha; Amparo Olivares Ramírez; Renate Wagemann Hernández. Relaciones laborales: Sindicatos y actores de la región de Los Ríos, Chile. Revista de Ciencias Sociales 2017, 22, 1 .
AMA StyleHoracio Sanhueza Burgos, Cristian Eduardo Salazar Concha, Amparo Olivares Ramírez, Renate Wagemann Hernández. Relaciones laborales: Sindicatos y actores de la región de Los Ríos, Chile. Revista de Ciencias Sociales. 2017; 22 (3):1.
Chicago/Turabian StyleHoracio Sanhueza Burgos; Cristian Eduardo Salazar Concha; Amparo Olivares Ramírez; Renate Wagemann Hernández. 2017. "Relaciones laborales: Sindicatos y actores de la región de Los Ríos, Chile." Revista de Ciencias Sociales 22, no. 3: 1.