TAM Model Validation Adoption of Augmented Reality through Structural Equations

Se analiza el modelo TAM (Technology Acceptance Model), que sugiere que la actitud hacia una tecnología depende de dos variables: la utilidad percibida y la facilidad de uso percibida. Se estudia la viabilidad del modelo respecto a la Realidad Aumentada (RA) utilizando las ecuaciones estructurales. Con respecto al material y los métodos, se efectúa una investigación con 274 alumnos de Infantil y Primaria que trabajaron con objetos de RA elaborados para el estudio. Y en cuanto a los resultados y discusión, se demuestra la efi cacia del modelo, las posibilidades que ofrece la metodología de las ecuaciones estructurales y se valida un instrumento de análisis del TAM hacia la RA.The model TAM (Technology Acceptance Model) is analyzed that suggests that the attitude towards a technology depends on two variables: the perceived utility and the facility of perceived use. The viability of the model is studied with regard to the Augmented Reality (AR) using the structural equations. Material and Methods: an investigation is studied with 274 pupils of Infantile and Primary that worked with AR’s objects elaborated for the study. Results and discussion: is demonstrated the effi ciency of the model, the possibilities that are offers the methodology of the structural equations and an instrument is validated of analysis of the TAM towards the AR.Ministerio de Ciencia e Innovación de España EDU2014-57446

A property of Dunford-Pettis type in topological groups

The property of Dunford-Pettis for a locally convex space was introduced by Grothendieck in 1953. Since then it has been intensively studied, with especial emphasis in the framework of Banach space theory. In this paper we define the Bohr sequential continuity property (BSCP) for a topological Abelian group. This notion could be the analogue to the Dunford-Pettis property in the context of groups. We have picked this name because the Bohr topology of the group and of the dual group plays an important role in the definition. We relate the BSCP with the Schur property, which also admits a natural formulation for Abelian topological groups, and we prove that they are equivalent within the class of separable metrizable locally quasi-convex groups. For Banach spaces (or for metrizable locally convex spaces), considered in their additive structure, we show that the BSCP lies between the Schur and the Dunford-Pettis properties

Scale to Measure the Students’ Addiction to Online Social Media

El uso de las redes sociales online (RSO) está originando una línea de investigación centrada en el fenómeno de adicción que se produce por utilizar de forma intensa las tecnologías e Internet, especialmente en grupos poblacionales tan vulnerables como los jóvenes y adolescentes. Esto ha repercutido en la búsqueda de instrumentos para su diagnóstico, terreno donde han ganado espacio las escalas de autopercepción. Esta investigación se planteó validar y adaptar al contexto mexicano la escala de adicción a las redes sociales elaborada por Sahin (2018). El instrumento resultante constituye una herramienta útil, dada la inexistencia de una de su tipo en la literatura académica mexicana, para recoger información del grado de adicción a RSO en jóvenes y adolescentes.The use of online social media has opened a line of inquiry focused on the phenomenon of addiction as a result of the intensive use of technologies and Internet, especially for vulnerable groups of the population such as youth and adolescents. This has led to the search for diagnostic instruments, where self-awareness scales have gained ground. This article sought to validate and adapt the social media addiction scale designed by Sahin to the Mexican context. The resulting instrument is a useful tool given the inexistence of its kind in the Mexican literature to gather information as regards the level of the people’s addiction to online social media

Factores Críticos que dificultan la Aplicación de Revenue Management en Hoteles Urbanos

Con este trabajo se pretenden determinar los factores que influyen de forma significativa como barreras para la aplicación de Revenue Management –RM- (también denominado Yield Management). Con este objetivo, se analiza la influencia de su conocimiento, implantación y de la dimensión del hotel, sobre las dificultades experimentadas por los hoteles en dos momentos, al inicio del proceso de la implantación de RM y en el momento actual. El estudio se realiza sobre el censo de hoteles de cuatro y cinco estrellas de la provincia de Sevilla. Se ha constatado, de un lado, la influencia significativa que ejerce la disponibilidad de un software de RM sobre las dificultades al inicio del proceso de implantación y, de otro, la influencia también significativa de la implantación de RM, dimensión del hotel, pertenencia a una cadena y dimensión de la cadena, sobre las dificultades a las que actualmente deben enfrentarse los hoteles para la aplicación de RM. Adicionalmente se han identificado aquellos obstáculos que resultan críticos a la hora de aplicar RM en el sector hotelero dependiendo del perfil del hotel. Con ellos el establecimiento podrá hacer una evaluación previa de sus fortalezas, debilidades y áreas de actuación prioritarias para la implantación de RM.With this work we aim to identify factors that significantly influence as barriers to the implementation of Revenue Management -RM- (also called yield management). In this way, the influence of its knowledge, its implementation and the size of the hotel is analyzed, on the difficulties experienced by hotels at two specific monents, at the beginning of the process of the implementation of RM and at present. The study was performed on the census of hotels of four and five star hotels in the province of Seville. It was found, on the one hand, the significant influence of the availability of a RM software on the difficulties at the beginning of the implementation process and, secondly, also significantly influence the implementation of RM, size of hotel, membership brand and size of the chain, on the difficulties they face currently hotel RM application. Additionally, those obstacles have been identified that are critical to the RM implementation in the hotel sector depending on the profile of the hotel. With them, the hotel may make a preliminary assessment of their strengths, weaknesses and areas for priority action for implementation of RM

Razones del éxito de un manual universitario: un caso práctico

Este trabajo trata de identificar algunas de las razones que hacen que un determinado manual sea recomendado por los cursos de una disciplina. Para ello, partiendo de una investigación en Dirección de Operaciones en Servicios, se establecen determinadas características mensurables de los textos y se analiza su correlación estadística con el número de los cursos que recomiendan cada uno de ellos. Los resultados permiten concluir que en la elección de manuales están influyendo características como el grado de cubrimiento de los aspectos que constituyen la disciplina, la extensión de los contenidos centrados en la disciplina, la dedicada a determinados grupos de temas o a ejercicios prácticos (problemas) y el año de edición. Por el contrario, otras características no tienen una influencia positiva como el contenido dedicado a temas no propios de la disciplina. Adicionalmente, se observa que la unidad de agregación apartados, que representa un nivel menor que el tema, se destaca como la de mayor influencia en la valoración de los docentes.This paper attempts to identify some of the reasons that lead to a particular textbook being recommended on the courses of a discipline. On the basis of research done in Services Operations Management, specific measurable features of the texts are established and their statistical correlation is analyzed with the number of courses on which each is recommended. The results allow the conclusions to be drawn that among the features that have an influence on the choice of textbook are the degree to which they cover the various aspects that make up the discipline, the length of the contents focused on the discipline, the length of particular groups of subjects or of practice exercises, and the year of publication. Moreover, other features do not have a positive effect, such as content devoted to subjects that are not part of the discipline. It can be seen that the unit sections, which are a lower level than the topic, stands out as having the greatest influence on teachers’ assessments

Implementation of technology and production strategy practices: relationship levels in different industries

Many industries face open, global markets with requirements for rapid response and low costs. Given the major role that technology plays in business competitiveness, proper technology management (T) in combination with a good production strategy (S), is important to address current challenges. This paper analyzes the nature of T & S implementation in different industrial contexts to examine whether there are differences in how T & S are implemented in different sectors, whether implementation is linked to performance, and whether contextual factors explain the differences. A database from the High Performance Manufacturing Project is used to test the research questions based on a survey of 267 plants across nine countries in three different industrial contexts (machinery, electronics and auto suppliers). The findings show some differences between the T and S practice modes in the three industries. T and S implementation is observed to be related to performance, but not in the same way. Three of the eight contextual factors are found to differ in the three sectors, which may explain the differences found in T and S implementation. The results imply that plants should consider the joint implementation of T and S as their interdependencies may affect performance, outweighing the possible differences between industries in which plants operate. However, when implementing a specific technology practice, not all plants necessarily consider the same production strategy practices across industries. Likewise, when adopting a certain production strategy, it is not necessarily influenced by the same technology practices across industries.Ministerio de Ciencia e Innovación DPI-2009-11148Junta de Andalucía P08-SEJ-0384

Do technology and manufacturing strategy links enhance operational performance? empirical research in the auto supplier sector

Although much of the literature on manufacturing strategy (MS) and technology studies the implementation and impact of these manufacturing programs in isolation, this paper goes further by assessing the joint implementation and effect of these two manufacturing programs on performance, even when some contextual factors are present. Thus, this paper investigates how plants from the auto supplier sector make use of some operations practices from Manufacturing Strategy (MS) and from both Product and Process Technology, by testing the effectiveness of both sets of practices, with the ultimate goal of enhancing operational performance. The results suggest that there are only very minor differences between high and standard performers on the aggregated level for technology practices, which may be the reason why technology does not result in significant performance differences between the two plant types. On the other hand, on the aggregated levels there are somewhat greater differences for MS practices than for technology in both plant types, leading to larger differences in performance. While this study provides a foundation for examining MS, technology and context within a single framework, it is only through further research that a full understanding of the relationship between them will be obtainedMinisterio de Educación y Ciencia DPI-2006-0553Ministerio de Educación y Ciencia DPI 2009-11148Junta de Andalucía P08-SEJ-0384

Validación del modelo TAM de adopción de la Realidad Aumentada mediante ecuaciones estructurales

Se analiza el modelo TAM (Technology Acceptance Model), que sugiere que la actitud hacia una tecnología depende de dos variables: la utilidad percibida y la facilidad de uso percibida. Se estudia la viabilidad del modelo respecto a la Realidad Aumentada (RA) utilizando las ecuaciones estructurales. Con respecto al material y los métodos, se efectúa una investigación con 274 alumnos de Infantil y Primaria que trabajaron con objetos de RA elaborados para el estudio. Y en cuanto a los resultados y discusión, se demuestra la eficacia del modelo, las posibilidades que ofrece la metodología de las ecuaciones estructurales y se valida un instrumento de análisis del TAM hacia la RA.The model TAM (Technology Acceptance Model) is analyzed that suggests that the attitude towards a technology depends on two variables: the perceived utility and the facility of perceived use. The viability of the model is studied with regard to the Augmented Reality (AR) using the structural equations. Material and Methods: an investigation is studied with 274 pupils of Infantile and Primary that worked with AR’s objects elaborated for the study. Results and discussion: is demonstrated the efficiency of the model, the possibilities that are offers the methodology of the structural equations and an instrument is validated of analysis of the TAM towards the AR