Abstract
Purpose - The purpose of this paper is to analyze the aftermath of business failure (BF) by addressing: how the individual progressed and developed new ventures, how individuals changed business behaviors and practices in light of a failure, and what was the effect of previous failure on the individual's decisions to embark on subsequent ventures. Design/methodology/approach - The authors resort to qualitative methods to understand the aftermath of BF from a retrospective point of a successful entrepreneur. Specifically, the authors undertook semi-structured interviews to six entrepreneurs, three from the north of Europe and three from the south and use interpretative phenomenological analysis. Findings - The authors found that previous failure impacted individuals strongly, being shaped by the individual's experience and age, and their perception of blame for the failure. An array of moderator costs was identified, ranging from antecedents to institutions that were present in the individual's lives. The outcomes are directly relatable to the failed experience by the individual. The authors also found that the failure had a significant effect on the individual's career path. Originality/value - While predicting the failure of healthy firms or the discovery of the main determinants that lead to such an event have received increasingly more attention in the last two decades, the focus on the consequences of BF is still lagging behind. The present study fills this gap by analyzing the aftermath of BF.

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Teachers’ mobility is one of the facets of Higher Education Institutions internationalization, and despite its importance in implementing the program's purposes it is still disregarded by researchers, with most mobility studies focusing on students. This research concentrates on highly active mobility teachers and aims to delve into their experiences, namely by identifying facilitators and goals for this repeated internationalization and by analyzing the outcomes of these initiatives in their personal lives, professional activity, home and host students, and for their Universities as a whole. This study adopts a qualitative exploratory approach. Having as sample universe the teachers of one Portuguese University that in a 7-year period (2009-2016) engaged in mobility experiences under the Erasmus program (N = 107), 8 were identified as having the highest number of initiatives and were invited to participate in this study. From these mobility champions, 5 accepted, resulting in 5 phenomenological interviews. Data was collected in January 2017. The participants shared an integrated view of the Erasmus mobility, being essential for its success the additional opportunities of joint research and the strengthening of international relationships and networks. Prior relations with teachers from the host University and ongoing research projects stood out among the facilitators. The opportunity to observe and get to know other cultural settings was also mentioned as one determinant stimulus. Still, the outcomes in terms of teaching methodologies and best practices as well an effective impact in home students seemed residual. Moreover, the ability to encourage other teachers to join the program was very limited, often confined to close colleagues and research partners. Despite its exploratory nature, this study demonstrates the relevance of further research on mobility champions to assess the success and possible pitfalls of repeated mobility experiences in terms of extended institutional outcomes and well as individual gratification of the teachers involved. Based on the results, we suggest the consideration of a wider set of outcomes in the appraisal of mobility initiatives, as well as the widespread of champions’ insights on the topic in order to motivate inexperienced teachers to embrace internationalization. Hopefully this paper is able to inspire not only research but also teaching mobility initiatives.

Abstract
Dataflow programs are widely used. Each program is a directed graph where nodes are computations and edges indicate the flow of data. In prior work, we reverse-engineered legacy dataflow programs by deriving their optimized implementations from a simple specification graph using graph transformations called refinements and optimizations. In MDE speak, our derivations were PIM-to-PSM mappings. In this paper, we show how extensions complement refinements, optimizations, and PIM-to-PSM derivations to make the process of reverse engineering complex legacy dataflow programs tractable. We explain how optional functionality in transformations can be encoded, thereby enabling us to encode product lines of transformations as well as product lines of dataflow programs. We describe the implementation of extensions in the ReFlO tool and present two non-trivial case studies as evidence of our work's generality.

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This paper describes a novel control strategy of voltage source converters (VSC) in large-scale wind farm applications, in order to achieve a constant DC voltage for connecting to the long transmission system based on multi-terminal high voltage direct current (HVDC) technology. The control strategy is based on a multi-loop current and voltage control for tracking the predetermined value of the DC link voltage in the rectifier side station to achieve proper performance in the irregular circumstances of wind farm operation. In addition, the control strategy is able to transmit the maximum input power to the consumption side in different situations in grid side converter. Grid connection of the HVDC system is analysed under two conditions: balanced AC grid, and connection of unbalanced nonlinear load into the AC grid. The control strategy guarantees injection of minimum harmonic current components from the grid to the loads. MATLAB simulation results are presented to demonstrate the effectiveness of the proposed strategy for different types of variations in AC voltage amplitude and frequency of wind turbines output voltage.

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