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The paper aims to present a new mechanical scheme for a leg to be included in legged vehicles that simplifies the control actuations along the stride.

The scheme includes three four‐bar links grouped in two mechanisms. The first one decouples the vertical and horizontal foot movements. The second one produces a constant horizontal foot velocity when the corresponding motor is given a constant speed. A hybrid robot with wheels at the end of the hind legs has been simulated and constructed to validate the leg performance.

The gait control requires only five commands for the electronic cards to control the leg. Decoupling vertical and horizontal movements allows a more adequate selection of actuators, a reduction of energy consumption, and higher load capacity and robot velocity. Additional mechanical benefits, such as improved robustness and lower inertia, are obtained. The hind legs can also be articulated, allowing the robot to overcome an obstacle and to climb up and down stairs.

A hybrid robot offers greater stability with respect to a legged robot. This way the lateral movement is not a concern, and therefore it has not been tested yet during the walking cycle.

This new scheme obtains a quasi‐Cartesian behaviour for the foot movement that drastically simplifies the control of the walking cycle. Although the decoupling between movements has already been obtained in previous configurations, these follow a pantograph structure and suffer from blocking problems when they are subject to lateral forces. These schemes were suitable for crab‐like gaits. The proposed leg moves according to a mammal‐like gait.

The purpose of this paper is to propose a novel actuator with adaptable compliance for robotic applications.

In order to achieve limb actuation similar to that of human muscles, a novel actuator with adaptable compliance is proposed. Three principal design paradigms currently exist in the development of artificial muscles that have been adopted at several research centres, universities and commercial organizations around the world. The first approach consists of using compliant actuator systems such as pneumatic actuators. The second approach undertakes the development of electroactive polymers that deform when a voltage is applied. The third approach involves electromechanical devices typically comprising an electrical actuator and an elastic element in combination. The proposed actuator extends on the third approach. It comprises an electrical DC motor in serial configuration and a novel elastic device exhibiting variable stiffness.

The novel elastic device complements the mechanical structure of the device, enabling adaptation to the dynamic effects of external forces.

Several applications for the actuator with adaptable compliance have been identified in the field of human‐like robotics.

Prototypic experimentation has successfully demonstrated the variable stiffness of the device.

This study provides a new look at the late 19th-century university issue in Spain. Loss of self-government among universities and the state’s centralization brought a conflict between science and religion to the fore in the process of the secularization of knowledge.

We first delve into the anti-Darwinian framework associated with the scientific professionalization process, focusing on the case of the jurist Antonio Hernández Fajarnés (1851–1909). Secondly, we study the idea of the university that emerged from the Ateneo de Madrid, analyzing key speeches from the jurist Francisco Fernández de Henestrosa (1855–s.d.) given in 1887/88 and from the pharmacist José Rodríguez Carracido (1856–1928).

The study concludes that the Restoration Era in Spain was characterized by a generalized desire – shared by neo-Scholastics, conservatives and liberal rationalists – to improve the public university system. In this context, French influence was no doubt decisive; however, the Humboldtian university idea had already begun to have notable influence.

This article analyzes sources yet unknown to international research, such as the Ateneo de Madrid debates and Spanish university rectors’ inaugural speeches. It opens up a critical examination of the so-called displacement of educational principles in Spain toward a state-centered system of doctrinal moderantismo as opposed to the nation-centered system of the Cádiz liberalism. At the same time, it identifies key pockets of resistance relative to Spanish university transformation toward increased methodological secularization.

This paper aims at providing an overview and synthesis of the existing body of knowledge about greenwashing. Special attention is paid to the articles directly linked with agriculture, food industry and food retail.

A bibliometric analysis was performed over 351 documents extracted from the WoS database, using SciMAT and VOSviewer software programs.

Three periods in the academic literature about greenwashing can be distinguished: ground-setting (2003–2010), trail-blazing (2011–2015) and remarkable growth (2016–2020). Along this evolution, a body of knowledge which stemmed from the literature about CSR has achieved a major development, deploying different research lines such as stakeholders' management, marketing and communication and audit. A specific analysis of the academic literature about greenwashing in agriculture, food industry and food retail has been carried out, showing a need for further development.

The development of scientific knowledge about greenwashing puts this social claim on the spotlight of business management studies, helping to fight greenwashing and, this way, to reduce the environmental impact of corporate activities. Studying greenwashing will help to reduce its frequency and, therefore, heal the planet.

Some previous studies have provided systematic reviews of the literature using different approaches, but they did not untangle the intellectual structure and the evolution of the body of research about greenwashing. This article originally provides a thorough analysis of these aspects, as well as a closer look at the impact of greenwashing practices in the academic literature regarding agriculture, food industry and food retail.

This research has three main objectives. First, it examines influence of gamification on the behavioral intention to use an e-commerce platform. Second, it analyzes the role of the flow state given its importance in terms of behavior in online environments. Finally, the study aims to detect and analyze differences between Millennials and Generation X.

The theoretical basis for this study stems from technology acceptance model. The extended model incorporates gamification and the optimal state of intrinsic motivation, flow state, as additional constructs. An online consumer panel was used to collect data from 253 Spanish Amazon users. A structural equation modeling, partial least squares, is proposed and multi-group moderation was studied.

Gamification in Millennials has positive and significant indirect effects on behavioral intention through the flow state. In the case of the Generation X, it has been detected that flow interferes in its perception of ease of use. The behavioral intention of using the Web page is directly correlated with the purchase intention. Companies should offer a fun interface to Millennials and an environment easier to use to the Generation X, for gamification to be successful.

This study expands the research scope in gamification by focusing on e-commerce sector, a field where scientific research is still scarcely developed. It emphasizes the importance of flow as mediator. Age differences confirm the need for segmentation when applying gamification and marketing strategies in e-commerce.

The purpose of this paper is to estimate the impact of one productive development program (PROPYME) in a developing nation like Costa Rica. This program seeks to increase the capacity of small and medium-sized firms (SMEs) to innovate.

Impacts have been estimated assuming that beneficiary firms are trying to maximize their profits and that PROPYME aims to increase these firms productivity. The impacts were measured in terms of three result variables real average wages employment demand and the probability of exporting. A combination of fixed effects and propensity score matching techniques was used in estimations to correct for any selection bias. The authors worked with panel data companies treated and untreated for the period 2001-2011.

PROPYME’s beneficiaries performed better than other firms in terms of labor demand and their probability of exporting. In addition, the dose and the duration of the effects of the treatment (timing effects) are important.

The authors study the impact in ways that go beyond the average treatment effects on the treated (ATT) usually estimated in the existing literature. Specifically, the research focusses on the identification of the timing or dynamic effects (i.e. how long should we wait to see results?) and treatment intensity (dosage effects).

Se estima el impacto de un programa de desarrollo productivo (Propyme) en un país en vías de desarrollo como Costa Rica. El Propyme busca incrementar la capacidad innovadora de las pequeñas y medidas empresas (pymes) costarricenses.

el impacto se ha estimado y evaluado asumiendo que las pymes beneficiaras buscan maximizar sus beneficios y que Propyme se enfoca en incrementar la productividad de esas empresas. El impacto se valoró en función de tres variables: salarios reales medios, empleo demandado y la probabilidad de exportar. Se utilizó una combinación de técnicas de efectos fijos y emparejamiento en las estimaciones con el fin de prevenir sesgos de selección. Se trabajó con un panel de datos, incluyendo empresas tratadas (beneficiarias de Propyme) así como no tratadas para el periodo 2001-2011.

los beneficiarios de Propyme tuvieron mejor desempeño que las restantes empresas en términos de empleo demandado y su posibilidad de exportar. Adicionalmente los efectos dinámicos (dosis y duración) de los tratamientos son importantes.

este artículo evalúa el impacto de una forma que va más allá de lo usual en la literatura por medio de los efectos promedios de los tratamientos sobre los beneficiarios. Esto por cuanto se enfoca en efectos dinámicos como la duración así como la intensidad.

In this chapter, we analyse the role of women in armed Basque nationalist and separatist terrorist group Euskadi Ta Askatasuna (ETA) from a gender perspective. ETA women were essential agents in the armed conflict, but their image in the mass media and society has been very different from that of their male colleagues (Rodríguez Lara, 2017). Also, their role in the terrorist gang has described a sexually based functional specialisation. In addition, this chapter seeks to contribute to the area of feminist studies on women and political violence. Women's role in one of the most important armed nationalist groups in Europe, ETA, stands as a suitable case study to understand how the mass media (press, journalism), audiovisual content, and social representations of ETA have portrayed these women. The final conclusion of this chapter is that women were not portrayed in the same way as their male colleagues. Women of ETA were doubly penalised because they were women and because they were terrorists.

Analyze patterns of co-authorship in hospitality and tourism (H&T) research using bibliometric methods. The purpose of this paper is to answer three questions related to collaborative practices, the number of authors, the order of signatures and the role of the corresponding author.

The methodology is based on the bibliometric techniques of authorship analyzes published in leading H&T journals. Evaluative techniques provide longitudinal evidence of the evolution of some indicators of authors’ collaboration: the percentage of alphabetized authorships; the percentage of articles were the most relevant author signs in the first, middle or last position; and the position of the corresponding author in the by-line.

First, the collaborative nature of H&T research is confirmed; almost 80% of articles in the sample are co-authored. Second, over the past 30 years, the alphabetized signature model has been in decline in this field. Today, about 20% of articles indexed in JCR journals are signed alphabetically. Third, the first author’s placement is less consistent than that of the corresponding author.

This work provides relevant information on researchers’ authorship habits that may help evaluators assign credit and accountability and avoid malpractice in the authorial assignment.

This study explores the habits of researchers who collaborate to improve their productivity, impact and reputation. This is often linked to facilitating access to research funding and obtaining recognition from incentive systems. Yet, no research specifically examines trends in signature order or the corresponding author’s role in the H&T field.

In this paper, the authors present an empirical framework that incorporates different factors of the impact of COVID-19 on small- and medium-sized enterprises (SMEs) in La Rioja, Spain, in relation to the value chain, gender and family business and allows the evaluation of these impacts on the SMEs' outcomes.

The authors conduct exploratory research based on phone interviews with 329 business managers from SMEs in La Rioja (Spain), from June 1 to June 30 2021, using ordinary least squares linear regression and matching procedures to test the study hypotheses.

The results show that the impact of COVID-19 related to primary activities in adding value, such as inbound logistics, operations and marketing, have a positive influence on innovation outcomes in SMEs, as do female managers. Family SMEs present poorer innovation outcomes.

At the organizational level, this paper may be of interest to management, and at the national and regional levels to policymakers, since it could help to develop policies that support SMEs' sourcing, operations and marketing in order to prepare for potential value chain disruptions. Additionally, this research may help decision-makers to foster and promote innovation in SMEs as a way of ensuring their resilience.

In this paper, the authors provide novel evidence about the effect of COVID-19 in SMEs. Moreover, it has been shown that the COVID-19 pandemic has triggered the redefinition of supply chains at the organizational level.

This paper aims to explore the characteristics of capability exchange within internationalizing small and medium enterprises (SMEs) of the Portuguese metallurgic and metal-mechanic sectors.

Multiple case research instrumentalizes a (manifest) content analysis based upon qualitative data gathered from the interviewing of the strategic apex of four multinational enterprises, codified in the light of the well-known Weber protocol.

The results uncover the existence of a multi-diffusional approach with a bi-directional regime of transferability, where reciprocal transference is non-simultaneous. Operational rigidities are asserted to be stifling the diffusion of capabilities across subsidiaries and hindering higher economies of learning.

The current paradigm of international capabilization of the sector requires substantial enhancements in its design for the benefit of the firm’s international competitiveness, growth and wealth.

Organizational capabilities are a determinant of competitiveness. Hitherto, the phenomena of (capabilities) mobility and transferability are still acknowledged as a clear gap. This study opens, therefore, avenues on international capabilization in relation to the modeling and testing of global dynamic capabilities and its replicability across industries.