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Support structures used in laser powder bed fusion are often difficult to clean from unsintered powder at the end of the process. This issue can be significantly reduced through a proper design of these auxiliary structures. This paper aims to investigate preliminary the airflow within differently oriented support structures and to provide design guidelines to enhance their cleanability, especially the depowdering of them.

This study investigates the cleanability of support structures in powder bed fusion technology. Digital models of cleaning operations were designed through computer-aided engineering systems. Simulations of the airflow running into the powder entrapped within the thin walls of auxiliary supports were implemented by computational fluid dynamics. This approach was applied to a set of randomly generated geometrical configurations to determine the air turbulence intensity depending on their design.

The results, which are based on the assumption that a relationship exists between turbulence and powder removal effectiveness, demonstrated that the maximum cleanability is obtainable through specific relative rotations between consecutive support structures. Furthermore, it was possible to highlight the considerable influence of the auxiliary structures next to the fluid inlet. These relevant findings establish optimal design rules for the cleanability of parts manufactured by powder bed fusion processes.

This study presents a preliminary investigation into the cleanability of support structures in laser powder bed fusion, which has not been addressed by previous literature. The results allow for a better understanding of the fluid dynamics during cleaning operations. New guidelines to enhance the cleanability of support structures are provided based on the results of simulations.

This study aims to understand the impact of student entrepreneurship and university support on faculty intrapreneurship. The authors also analyze the role of the university’s dynamic and ordinary capabilities and the environmental dynamism in which the university is embedded.

With a large survey data set involving 680 professors and 2,230 students from 70 Brazilian universities, the authors use a multimethod approach with partial least squares structural equation modeling (PLS-SEM) and fuzzy-set qualitative comparative analysis (fsQCA).

The PLS-SEM results demonstrate that student entrepreneurship indirectly influences faculty intrapreneurship through the interaction of students with faculty and entrepreneurs, in addition to proving the intense influence of university support on faculty intrapreneurship, especially in a slow-growth environment. Additionally, the authors confirmed the moderating effect of universities’ dynamic and ordinary capabilities on student interaction and university support, respectively, and some exciting differences considering the ecosystem dynamism. The fsQCA results deepened the differences between environments, presenting different configurations between the antecedents that lead to high levels of faculty intrapreneurship in fast and slow-growth environments.

The study makes a unique and significant contribution to the literature on faculty intrapreneurship by examining the cross-interactions between individual, organizational and environmental levels about the promotion of faculty intrapreneurship. From a practical point of view, it is possible to identify more effective, innovative and systematic ways to encourage faculty intrapreneurship in a developing country. The findings help open up the black box of faculty intrapreneurship.

Punctuality has become a critical customer satisfaction feature in attended home deliveries (AHDs). Since much of a customer’s satisfaction is built upon expectations, the purchase context plays a key role, particularly in the face of recurrent or sporadic events. This study has two purposes. First, we investigate the effect of punctuality on customer satisfaction for online purchases with AHDs. We divided punctuality into three dimensions: objective punctuality, perceived punctuality and perceived latency. Second, we explore the moderating effects of the contextual purchasing constructs on the relationship between punctuality and customer satisfaction: price-promotional, emotional and pandemic events.

Secondary data were collected from a large multinational appliance manufacturer in Brazil. The dataset contains 233,839 sales and customer satisfaction responses for online purchases requiring AHD. To analyze the data, we used multiple linear regression models with interactions.

The results showed that all three punctuality dimensions directly affect customer satisfaction. The findings also revealed that all three events moderate the relationship between punctuality and customer satisfaction. Price promotional and pandemic events moderately affect perceived punctuality and lateness, while emotional events moderately affect them.

This study provides a deeper understanding of punctuality for AHDs, breaking punctuality into two perceptual and one objective dimension and assessing their effects on customer satisfaction. In addition, this study introduces three contextual moderating constructs that affect the relationship between punctuality and customer satisfaction. These findings contribute to the last-mile delivery strategy because retailers can manage their resources to match punctual delivery needs.

This paper investigates the impacts of globalization processes on the Swiss business elite community during the 1980–2010 period. Switzerland has been characterized in the 20th century by its extraordinary stability and by the strong cohesion of its elite community. To study recent changes, we focus on Switzerland’s 110 largest firms’ by adopting a diachronic perspective based on three elite cohorts (1980, 2000, and 2010). An analysis of interlocking directorates allows us to describe the decline of the Swiss corporate network. The second analysis focuses on top managers’ profiles in terms of education, nationality as well as participation in national community networks that used to reinforce the cultural cohesion of the Swiss elite community, especially the militia army. Our results highlight a slow but profound transformation of top management profiles, characterized by a decline of traditional national elements of legitimacy and the emergence of new “global” elements. The diachronic and combined analysis brings into light the strong cultural changes experienced by the national business elite community.

Education as a weapon in the fight against conflict and violence remains widely debated in policy and academic circles. Against the background of growing political instability in Africa and the central role of the knowledge economy in twenty-first century development, this paper provides three contributions to existing literature. The purpose of this paper is to assess how political stability/non-violence is linked to the incremental, synergy and lifelong learning effects of education.

The authors define lifelong learning as the combined knowledge acquired during primary, secondary and tertiary education. Principal component analysis is used to reduce the dimensions of educational and political indicators. An endogeneity robust dynamic system Generalized Methods of Moments is used for the estimations.

The authors establish three main findings. First, education is a useful weapon in the fight against political instability. Second, there is an incremental effect of education in the transition from secondary to tertiary schools. Third, lifelong learning also has positive and synergy effects. This means that the impact of lifelong learning is higher than the combined independent effects of various educational levels. The empirical evidence is based on 53 African countries for the period 1996-2010.

A plethora of policy implications are discussed, inter alia: how the drive towards increasing the knowledge economy through lifelong learning can be an effective tool in the fight against violence and political insurgency in Africa.

As the continent is nursing knowledge economy ambitions, the paper is original in investigating the determinants of political stability/non-violence from three dimensions of education attainment: the incremental, the lifelong learning and a synergy effect.

The purpose of this paper is to examine gender differences in occupational status among South Korean workers in 1988 and 1998. In 1988, the South Korean National Assembly enacted an Equal Employment Opportunity Act. The goal is to better understand how occupational status differs by gender between these time periods.

Using the “88 and 98 Occupational Wage Bargaining Survey on the Actual Condition (OWS),” the paper examines occupational differences by gender and log wage using OLS.

Occupational segregation by gender was more extreme in 1988 than 1998. In 1988, 83.3 percent of all female workers were employed in three broad occupational categories. Few women (5.4 percent) worked as professional, technical or administrative workers. By 1998, 11.5 percent of female workers were employed as professionals. The highest paid occupational categories, in South Korea, have the lowest percentage of female workers. Women benefit from additional educational experience, though less so than holds for men, and from being in a union (in 1988). Women are penalized, in terms of occupational status prestige, when working in large firms and when married.

If South Korea aims to make full use of the human capital of all workers, measures need to address how women might enjoy returns on their educational investment that approach those realized by men. Further, efforts to integrate women into professional occupations categories might be examined.

Little has been explored with regard to occupational gender differences in South Korea. This work provides a better understanding of occupational status differences by gender and how they vary across time.

A proposed explanation for why business creation is often found to increase in recessions is that there are two components to entrepreneurship – “opportunity” and “necessity” – the latter of which is mostly counter-cyclical. Although there is some agreement on the conceptual distinction between these two factors driving entrepreneurship, there is little consensus in the literature on empirical definitions. The goal of this chapter is to propose an operational definition of opportunity versus necessity entrepreneurship based on the entrepreneur's prior work status (i.e., based on previous unemployment) that is straightforward, based on objective information, and empirically feasible using many large, nationally representative datasets. We then explore the validity of the definitions with theory and empirical evidence. Using datasets from the United States and Germany, we find that 80–90% of entrepreneurs are opportunity entrepreneurs. Applying our proposed definitions, we document that opportunity entrepreneurship is generally pro-cyclical and necessity entrepreneurship is strongly counter-cyclical both at the national levels and across local economic conditions. We also find that opportunity vs necessity entrepreneurship is associated with the creation of more growth-oriented businesses. The operational definitions of opportunity and necessity entrepreneurship proposed here may be useful for distinguishing between the two types of entrepreneurship in future research.

This chapter commences by depicting the rise of Africa as a force on the world map as a contextual background for a survey of the education expansion and reform project on the continent in the past 65 years – arguably the biggest education expansion drive in human history. The main lines of the education expansion and education reform in Africa are reconstructed. Education in Africa is then assessed in terms of three dimensions: quantitative, qualitative, and equalization. While being nothing short of spectacular, the education project in Africa faces severe challenges, on all three fronts of the quantitative expansion, quality, and equality dimensions. At the same time, as the African continent is embracing the world of the twenty-first century, this changed world is also adding its share of imperatives to education. Finally, the role of comparative international scholarship in negotiating these imperatives and challenges is noted.

This study aims to investigate how Germans' misperceptions of the nature of entrepreneurship influence their attitudes towards entrepreneurial failure.

Adopting a multivariate regression analysis, the study used data collected from a commercial online market research panel (N = 2,027) reflecting the overall German working population. Attitudinal items on business failure were used to measure the study variables. The study controlled for age, education, employment status, gender, income, whether the respondent knows a failed entrepreneur and the German federal state in which the respondent resides.

The findings suggest that reservations about failed entrepreneurs become stronger as misperceptions of the nature of entrepreneurship worsen. The results also show that failure reservations vary regionally over the 16 German federal states.

Nationwide efforts regarding the stimulation of entrepreneurship and the acceptance of entrepreneurial failure are insufficient for removing failure reservations, as they neglect regional cultural differences. The results suggest that it is not enough just to invest in efforts to create a failure-friendly culture, and that a better general education about the realities of entrepreneurship is a prerequisite.

The study generates insights into how the overall population in an innovation-driven economy perceives entrepreneurship and entrepreneurial failure. Moreover, the work delves into the reasons why parts of German society reject failed entrepreneurs. Hence, this study can aid the drafting of effective policy initiatives at the regional and national levels.