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Non-uniform rational B-splines (NURBSs) are the de facto standard for representing objects in computer-aided design (CAD). The purpose of this paper is to discuss how to stick to this standard in all phases of the additive manufacturing (AM) workflow, from the CAD object to the final G-code, bypassing unnecessary polygonal approximations.

The authors use a commercial CAD system (Rhino3D along with its programming environment Grasshopper) for direct slicing of the model, offset generation and trimming. Circular arcs are represented as quadratic NURBSs and free-form geometry as quadratic or cubic polynomial B-splines. Therefore, circular arcs are directly expressible as G2/G3 G-code commands, whereas free-form paths are rewritten as a succession of cubic Bézier curves, thereby admitting exact translation into G5 commands, available in firmware for AM controllers, such as Marlin.

Experimental results of this paper confirm a considerable improvement in quality over the standard AM workflow, consisting of an initial polygonization of the object (e.g. via standard tessellation language), slicing this polygonal approximation, offsetting the polygonal sections and, finally, generating G-code made up of polyline trajectories (G1 commands).

A streamlined AM workflow is obtained, with a seamless transfer from the initial CAD description to the final G-code. By adhering to the NURBS standard at all steps, the authors avoid multiple representations and associated errors resulting from approximations.

This paper aims to determine the effect of a set of factors (attitude toward entrepreneurship, perceived behavioral control or entrepreneurial self-efficacy, previous experience, internal locus of control and entrepreneurial alertness) on the entrepreneurial intentions of Chilean secondary vocational school students.

An online survey was sent to all secondary-level students from four Chilean vocational schools (3,052 students). A total of 1,644 valid questionnaires were received. The data were analyzed using partial least squares structural equation modeling (PLS-SEM).

The results show that attitude toward entrepreneurship and perceived behavioral control positively and significantly impact the students’ entrepreneurial intentions, but not the previous experience.

Since this research was carried out in a specific reality, the results may lack generalizability. Also, the proposed model requires further development through the incorporation of other factors. It is then suggested to replicate this study in other countries as well as to incorporate new variables and test new relationships.

Entrepreneurship education programs at the secondary level should emphasize changing/stimulating adolescents’ attitudes toward entrepreneurship as well as improving their confidence in their entrepreneurial abilities.

This is one of the few studies that provide empirical evidence about the determinants of entrepreneurial intentions in adolescents, particularly in Latin America, and with a large sample.

El propósito de este estudio es determinar el efecto de un conjunto de factores (actitud hacia el emprendimiento, control conductual percibido o autoeficacia emprendedora, experiencia previa, locus de control interno y alerta emprendedora) sobre las intenciones emprendedoras de estudiantes secundarios técnico-profesionales chilenos.

Una encuesta online fue enviada a todos los estudiantes de nivel secundario de cuatro escuelas técnico-profesionales chilenas (3,052 estudiantes). Se recibieron un total de 1,644 cuestionarios válidos. Los datos obtenidos fueron analizados a través de una técnica de modelización de ecuaciones estructurales (PLS-SEM).

Los resultados muestran que la actitud y el control conductual percibido impactan positiva y significativamente sobre las intenciones emprendedoras de los estudiantes, no así la experiencia previa.

Dado que esta investigación se llevó a cabo en una realidad específica, se debe ser cauteloso a la hora de generalizar sus resultados. Asimismo, el modelo propuesto requiere un mayor desarrollo a través de la incorporación de otras variables. Se sugiere entonces replicar este estudio en otros países, así como incorporar nuevas variables y someter a prueba nuevas relaciones.

Los programas de educación emprendedora en el nivel secundario debiesen poner énfasis en cambiar/estimular las actitudes hacia el emprendimiento de los adolescentes, así como en mejorar su confianza en sus propias habilidades emprendedoras.

Este es uno de los pocos estudios que aporta evidencia empírica acerca de los determinantes de las intenciones de emprender en adolescentes, particularmente en América Latina y con una muestra amplia.

This study analyzes the digital competencies and the attitude toward the use of information and communication technologies (ICT) in secondary school teachers of the Javier Heraud Public Educational Institution, Lima, Peru, according to the technology, pedagogy, and content knowledge (TPACK) model, which focuses on knowledge about technology knowledge (TK), pedagogical content (PK) and content knowledge (CK). This implies that it is important to take these components into account in the development of teaching work, in order to contribute to the quality of student learning, within the framework of the restrictions established due to the global health emergency. The study is based on the quantitative approach, type of correlational research and cross-sectional design, the sample consisted of 106 secondary education teachers, questionnaire was applied which were validated by five experts and its reliability was analyzed by the values obtained for Cronbach's alpha, for the digital competencies variable α = 0.861 and for the variable attitude toward the use of ICT α = 0.854. It has been shown that there is a relationship between digital competencies and the attitude toward the use of information and communication technologies in teachers of a Peruvian Public Educational Institution.

The purpose of this paper is to know if the loyalty of online purchasing is determined by the final perceptions of product quality and brand reputation in the online community of lingerie customers.

The authors used an exploratory model which aspects in previous studies have evaluated satisfaction, loyalty and trust in electronic shopping, in order to examine whether the customer’s perception of the quality and innovation of the final product sold through e-commerce and reputation in the examined was made “Virtual Community” are key factors in creating loyalty. The sample was obtained from a lingerie company which sells its products in Europe in the website leonisa.com, the data were analysed with the software SmartPLS, validating the proposed relationships between customer perceptions on the purchased product and loyalty to the brand.

The results demonstrate theoretical conceptions regarding product characteristics (Quality, Innovation and Satisfaction), and constructs brand (Virtual Community, Reputation and Trust).

This paper presents a case study for a specific brand as exploratory research in the lingerie industry, this must be validated with this type of product for other companies.

This research has elements of support for management, companies will turn attention to the satisfaction of consumers and to maintain goods levels of reputation in the virtual community.

This research shows a real case of the correct implementation of brand strategy, detailing how customers are valued and therefore provides valuable information for customers and companies.

This exploratory study provides a new analysis of product quality factors that were not directly related to the loyalty of electronic purchasing, also, it allows the fashion industry to have elements of support for management and quality control, and that hypotheses relating to the product quality and loyalty in the electronic shopping is confirmed.

The purpose of this paper is to examine the adoption of e-banking in Colombia, including a comprehensive analysis of consumer trust in this type of transaction and of the impact of the current government policy to promote e-commerce.

An empirical investigation based on the UTAUT2 model collected data from throughout the country to develop 600 online questionnaires.

The proposed model was validated in that the factors hypothesised to build trust in the use of electronic banking were shown to be significant: trust, performance expectancy and effort expectancy had a positive impact on the use of financial websites in Colombia, while government support did not have a significant impact.

The study explains the antecedents to trust, as well as the government support variable, and concludes by producing a model that is highly successful in predicting financial customers’ online behaviour.

The results can help Colombia’s Government and private banks to further develop trust and other conditions necessary for e-banking.

Studies on the adoption of electronic banking provide users of these services solutions for their needs. Government policies to support the development of e-banking are not viewed favourably by Colombians.

This study is one of the first to present empirical findings on the acceptance of e-banking in Latin America; it further presents a model that integrates the most important variables needed for an analysis of the acceptance of e-banking.

Salesperson’s actions are critical in helping the firm develop customer value orientation and long-term relationship with profitable customers to achieve sustainable sales growth and profitability over time. The purpose of this paper is to examine the salespeople and service executives’ perceptions about the relevance of some human resource management variables and employees’ attitudes as key factors to develop a company’s customer value orientation. The authors tested whether the perceptions of role ambiguity, incentives policy and provided training (PT) had an impact on job involvement (JI), job satisfaction (JS), and consequently, on customer value orientation.

Research design was nested with data from 327 executives from medium and upper positions in Chilean companies.

The results show that while the perception of role ambiguity had an indirect negative impact on customer value orientation through JI, perception of PT level had a direct impact over and above the other variables.

JS and JI are attitudinal variables, which companies try to encourage in their employees through different human resources, practices. Incentives and training are ways to develop favorable employees’ attitudes and improve their customer value orientation. With the research, companies could invest their resources in better and more effective practices to generate favorable attitudes toward customer value orientation.

Through structural equation modeling, the model shows the relevance in the perception of sales executives about the relationship of employees’ JI and customer value orientation. This commands to open the view of the customer value orientation management to include other attitudinal variables as JI.

Celebrity endorsement is one of the most popular marketing communication tools that have been used by beverage companies to influence consumers’ behaviour, but little is known about the extent this communication strategy can be impactful and benefit alcoholic beverages like beer and wine. In this context, this study aims to examine whether and how social media celebrity endorsement influences consumers’ beer and wine purchase behaviour. Further, this study examines what are the characteristics of the celebrities that exert greater influence on beer and wine purchase behaviour.

Based on the source credibility and source attractiveness theoretical models, and on the match-up theory, a model of consumer purchase behaviour was proposed. Online celebrity endorsement was categorised as promoting either beer or wine, as well as beer and wine brands. Then, this model is empirically analysed through multiple group structural equation modelling on two samples of consumers who read online celebrity’s recommendations in Spain (beer = 280; wine = 277).

Findings indicate that celebrity’s recommendations exert a different influence pattern on consumer purchase behaviour depending on the product category: congruence is the most relevant variable in beer endorsement, whereas expertise is the most influencing factor in wine celebrity recommendations. Therefore, beer celebrity endorsers should be congruent with the product, whereas wine endorsers should be perceived as experts.

This study extends the literature on celebrity endorsement providing an empirical examination of the social media celebrity characteristics that influence consumer purchase behaviour of beer and wine, reporting interesting differences between these two alcoholic beverages.

Since the early modern age, the debt of the State was a constant source for concern to the Spanish governments. Episodes of defaults caused by enormous expenditure to keep the Empire slowly faded out until a certain reorganization of public finance was attained in the central decades of the nineteenth century. The core idea that finance ministers and economists, in general, had at that time was to balance the public budget controlling expenses, in order to handle the problem of public debt. However, alternative views on government finance existed. Focusing on a crucial period for the consolidation of Spanish liberal regime and its public finance, this chapter shows that, among a predominant concern for reducing public expenditure as the best way to stabilize the economy and promote economic growth, the character of Luis María Pastor emerges to support government expansionary policies financed with credit. Far from fearing deficit, Pastor, one of the leaders of the Spanish liberal school of economic thought, believed that investment in infrastructures financed through debt was the key to economic growth. Through a multiplicative effect, a program of public investment would enhance economic growth, eventually solving the long-term insufficiency of Spanish finance. This gives evidence that ideas on public finance of classical liberal economists were far from uniform, contributing to a more precise view on the body of doctrines of this school.

Emerging from 20 years of violence and terrorism, the city of Medellin, Colombia, has used social transformation to improve civic culture, leading to a renaissance. The purpose of this study is to explore how social transformation can lead to urban transformation, forming the basis for sustainable, post-conflict tourism.

This case study is based on available descriptive data and direct observation supported by secondary sources.

The results of the research help to provide a better understanding of the conditions needed to develop and manage sustainable tourism in post-conflict environments. In so doing, it should be possible to make better policy decisions, with particular reference to social and urban interventions on planning, design and entrepreneurship.

The transformation of Medellin’s civic culture can be a model for destination with similar histories that present significant destination image and branding challenges – though each will take different paths.

This paper is one of the first on post-conflict tourism that analyzes the impact on a destination and country of internal turmoil due to narco-terrorism and insurgency over a lengthy period.