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This paper aims to develop a stable gel-type lubricant emulating commercial conditions. This encompassed rheological and tribological assessments, alongside field trials on the Medellín tram system.

The gel-type lubricant with graphite and aluminum powder is synthesized. Rheological tests, viscosity measurements and linear viscoelastic regime assessments are conducted. Subsequently, tribological analyses encompassing four-ball and twin disc methods are executed. Finally, real-world testing is performed on the Medellín tram system.

An achieved lubricant met the stipulated criteria, yielding innovative insights into the interaction of graphite and aluminum powder additives under varying tests.

Novel findings are unveiled regarding the interaction of graphite and aluminum powder additives in tribological, rheological and real-world trials. In addition, the wear behavior of polymers is observed, along with the potential utilization of such additives in tramway systems.

Job satisfaction and leadership behavior are recognized by the organizational world as fundamental elements that influence the overall effectiveness of a company. However, as the first step for an adequate intervention on any of these variables, it is the evaluation. The purpose of this paper is to develop and validate two brief measures on job satisfaction and leadership behavior.

The sample was made up of 246 workers located in Bogota, Colombia. The study was an instrumental research. To collect validity evidence, the internal structure and the relationship with other variables were used. For the evaluation of equity, the differential item functioning was analyzed according to the sex of the participants. Reliability was estimated through the ordinal omega coefficient.

Both brief measures presented a unifactorial structure, where job satisfaction was measured by five items and leadership behavior by four items. On the other hand, only one item of leadership behavior showed differential item functioning; however, its magnitude was trivial. Also, convergent and discriminant evidence was provided for both measures, and the reliability levels were adequate.

The measures developed represents an effort to briefly measure job satisfaction and leadership behavior. Likewise, it constitutes two of the few instruments to measure job satisfaction and leadership behavior in Latin American, representing a good alternative for the measurement of the referred constructs in an organizational context.

This paper aims to explore the construction of social imaginaries of fear by the Chilean press regarding student violence during the 1968 university reforming process. Using an approach inspired by the history of emotions, the primary purpose is to analyze the discourse of two relevant conservative newspapers with national circulation about students' mobilization.

The research rests on the analysis of content in the discourse of the two more representative right-wing Chilean newspapers (El Mercurio and El Diario Ilustrado). Founded in the early years of the 20th century, both had national circulations and were a part of a tradition in the history of the Chilean 20th-century national press. Through the analysis of a selection of editorials and news regarding students' mobilization during 1968, with a focus on the experience of the most prominent institution (Universidad de Chile), this research highlights similarities and differences in the ways that both media endeavoured to elaborate social imaginaries of menace and fear regarding student movements.

Through the study of the discourse of traditional newspapers, it is possible to identify critical issues concerning the university student movements' purposes to implement breaking (and occasionally violent) methods to carry out the reforms that they promoted, according to the right-wing press. Against this backdrop, the different importance of an anti-communist component is discernible, typical of the Cold War period, in the (political and emotional) arguments of the newspapers under analysis.

This article proposes an interpretation that intertwines a local phenomenon (the reformist movement of the University of Chile) with a global one (the May student revolution of 1968). It also establishes a novel approach by linking, through its approach, yet traditional concepts of social and cultural analysis (the idea of social imaginaries) with a new emphasis on social science and humanities (emotional dimensions).

This qualitative study aimed to explore the barriers and facilitators faced by workers during the COVID-19 pandemic restrictions in Ecuador. It focused on three work modalities: on-site, telework and mixed or hybrid. It also inquired into practical implications for management based on the workers’ experiences.

Between October and December 2021, 41 semistructured interviews were conducted to delve into the experiences of Ecuadorian workers. Thematic content analysis was employed for data charting and analysis.

Barriers and facilitators varied according to each working modality, although some were shared, contingent upon the specific contextual factors and job characteristics. The findings suggest that organizations should consider implementing flexible working hours and modalities, provide safe workspaces, ensure appropriate technology and connectivity, support employees and maintain their health and well-being.

This research explores the experiences of teleworkers, on-site workers and hybrid workers during the COVID-19 pandemic in an under-researched labor market within a developing country. The study provides valuable insights that highlight the potential for management development initiatives specifically tailored to hybrid work environments.

Delee founders aimed to change the way cancer radically was detected, monitored, and treated. They created CytoCatch™, a highly sensitive automated benchtop device for the rapid isolation and analysis of circulating tumor cells from blood samples to make this possible. Strategic alliances with Stanford University, Tecnologico de Monterrey, and UANL strengthened this innovative company’s purpose. Nevertheless, some questions arose when selecting a suitable business strategy to accomplish Delee’s vision. Liza Velarde, Delee’s CEO, was preparing the agenda for the company’s 2025 planning in November 2020. The journey has been challenging, and Liza Velarde faced critical decision-making milestones. What could be the most promising customer segment for her technology? What business model may work better for such a market? How can Delee reduce the time-to-market for their technology? Furthermore, how can Delee fund their development for the following years until FDA approves?

With the application of this case, the teacher aspires that students understand the following crucial insights: to understand the impact of a business model strategy, identify different possible business models, and explore options; in this sense, intellectual property can offer options to the strategy; to identify and analyze the gender gap in entrepreneurship and its strategic implications; and to identify the relevance of reducing the time to market for a technological product.

Gender inclusiveness in entrepreneurship.

Undergraduate and graduate-level.

Teaching notes are available for educators only.

CCS 3: Entrepreneurship.

David Punter and Glennis Byron note how the Gothic novel has been divided into two categories: the ‘Male’ and ‘Female’ Gothic. Where the former emphasizes violence and ghosts, the latter focuses on female representation and the disavowal of the supernatural. The Hollywood Gothic films of the 1940s can be said to translate this aspect of the Female Gothic onto the cinema screen: Rebecca (1940), Gaslight (1944) and Secret Beyond the Door (1947) all feature narratives stressing the haunting nature of domestic spaces but there are no actual ghosts present. Robert Zemeckis’s What Lies Beneath (2000) breaks this convention. The film clearly draws on the Female Gothic lineage, situating Claire as a Gothic heroine, and yet there is an important difference: the supernatural is now an integral – and acknowledged – part of the story. This chapter explores this twenty-first century change, arguing that whilst the inclusion of the supernatural can be said to break with previous definitions of the Female Gothic, What Lies Beneath’s depiction of a ghost actually re-imagines and re-emphasizes the concerns at the centre of this tradition: the dramatization of marital and domestic experiences; an interrogation of feminine perception; and the reality of male violence against women.

Entrepreneurial intention is one of the main predictors of venture creation. However, the approaches used to analyze the entrepreneurial intention and venture creation are mostly linear approaches, leaving aside the fact that new ventures arise in a context characterized by fluctuations and instability, especially in emerging economies where economic and social factors are highly variables. Nevertheless, a dynamic approach could best represent its behavior. This study aims to propose an alternative approach and a starting point for more complex dynamic models in the entrepreneurship process that surpass the limitation of the current linear methodologies and allow gathering isolated studies' contributions.

This study proposes a method to shed light on the processes related to the venture creation process and entrepreneurial intention by designing a system dynamics simulation model.

The results reveal that the delayed effect of expectations produces a growing tendency in project creation, venture establishment and venture creation. Likewise, the entrepreneurial intention is not a static variable; it changes by the system’s dynamics and disturbs the venture creation process, which produces an increase in oscillations in the model and, therefore, reduces the project’s growth and venture creation.

This model is a generic approach for the study of venture creation and entrepreneurial intention. The model can analyze entrepreneurial intention and venture creation in different contexts, adjusting the different model parameters. The authors run a sensitivity analysis to encompass deviation from the parameter established and the uncertainty about them. However, the empirical data used for the model’s testing, in this case, correspond to an approximation to the behavior of venture creation in Colombia, which is considered an emerging economy. The model proposed does not pretend to incorporate all the variables and phenomena about entrepreneurship.

The approach suggested in this work aims to conceptualize venture creation as a complex process that emerges from the occurrence and combination of simpler states, instead of activities that represent building blocks. In addition, the term “entrepreneurial process” is defined as a composite of different perspectives that use a series of multidisciplinary theories to address the topic.

The purpose of this study is to verify some relationships between entrepreneurial attitude, university environment, entrepreneurial culture and entrepreneurial training, which can be used to promote entrepreneurship among university students.

A sample of 3,005 questionnaires answered by students from ten universities in Colombia was gathered and partial least squares structural equation modelling (PLS-SEM) was used for the analysis.

The results show that the more a student perceives an entrepreneurial culture and the more training he or she receives, the more entrepreneurial attitude he or she will have. Also, it was found that entrepreneurial culture has a positive effect on university environment, and the latter has a positive effect on entrepreneurial training.

The main limitation of this study was that only ten Colombian universities were sampled; therefore, general inferences cannot be made. Additionally, the variables investigated here may have not accurately measured the full scale of the entrepreneurship programmes in such universities or the way the culture of these institutions had a direct impact on students. Projects such as the Global University Entrepreneurial Spirit Students' Survey (GUESSS), which measure variables related to entrepreneurship at the university level, enable universities to shape their policies around this important topic. This study indicates that universities should offer training in entrepreneurial, problem-solving and communication skills to produce entrepreneurs who can better face current challenges.

Other studies have discussed entrepreneurial culture, but they usually deal with university environment, entrepreneurial training and entrepreneurial attitudes separately. This study integrates all these factors and measures the level of interaction between them.