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In the production and overhaul of aero engines chemical and electrolytic surface treatment processes such as electrolytic degreasing, chemical and electrochemical etching, chemical descaling and chemical stripping of thermally sprayed coatings are used. In the course of some of these processes the heat resistant nickel and cobalt base alloys found in the “hot end” of the newer gas turbines are attacked. These superalloys have a common characteristic, namely, they are precipitation hardened. The alloying elements added for this purpose give rise to intermetallic compounds (carbides, nitrides, carbonitrides) which appear as inclusions of various shapes and sizes within the grain or at the grain boundaries. The conclusion from this work is that these intermetallics present as separate phases can be dissolved out by oxidative attack leaving pits. The separate processes and their objectives are detailed. It is shown in which process stages and in which solutions attack occurs. The inclusions have been analysed and the nature of the attack is illustrated. We conclude from this work, which has embraced seven nickel and cobalt base materials, that certain processes or process steps cannot be permitted on these alloys. For cleaning and etching alternative processes are given. For descaling a new compatible process was evaluated and will be discussed in a second report.

The chapter addresses the question of how crisis and emergency communicators in the justice (police) and health sector in Norway reflect on their use – or lack of use – of social media during the terror crisis on 22 July 2011. We examine how these communicators in the years following the crisis have developed their use of social media to optimise their and the public’s awareness of similar crises. Our semi-structured interviews with key emergency managers and responders display how the terrorist-induced crisis in 2011 was a wake-up call for communicators in the police and the health sector. They reflect on the significance, strengths and weaknesses of social media in the management of crises such as this one.

Mid-level executives are confronted with many dilemma situations, in which they are forced to decide between conflicting options, none of them leading to the desired result. If they fail to cope with them constructively, their individual risk for mental strains increases (Gerlmaier and Latniak, 2013). Initial findings focusing on executives in industry (Bossmann, 2020) show that fostering effective dilemma management in executives is a preventive factor against stress-related diseases. Yet, there is little empirical research that evaluates the contribution of dilemma management training on leadership’s mental health prevention in hospitals. This study aims to examine whether such a training program, adapted to current working conditions in German hospitals, promotes mid-level executives’ mental health.

A 10-month training program was administered to N = 69 senior physicians, senior nurses and senior service and administrative staff in four hospitals. To evaluate training effects on perceived stress reactivity, on cognitive and emotional irritation over time as well as the effects of the training dose on these results, participants’ self-reported measures were collected at four points in time: before (t0), during (t1), immediately after (t2) and three months after the intervention (t3).

Overall, participants showed less cognitive irritation and perceived stress reactivity over time. However, their emotional irritation did not change significantly. The dose of training participation did not moderate these results.

This paper contributes to the prevention of stress-related diseases and the promotion of sensemaking in mid-level executives’ dilemma management routine in the face of increasingly aggravating working conditions due to financial restrictions in the German health-care system. Findings of this study are explained in greater depth using previously reported qualitative data from the same research project.

This paper aims to examine the role of James March and his actor-network in the development of a functionalist paradigm of organization theory (OT). Recognizing the important contribution of March to the development of the field of OT, the authors set out to understand the role that he played in establishing the oft-quoted development of founding a behavioral facet of the functionalist paradigm of management theory.

The authors draw on ANTi-History to study some of the key factors that contributed to the challenges associated with the creation of a functionalist paradigm of OT. ANTi-History is an amodernist method drawing attention to how history is produced, differing from a modernist method for identifying the single-most truth of a series of past events and from a postmodernist method for revealing the relativity of accounts of the past. To that end, the method of ANTi-History is to explore the intersections of a series of human (e.g. scholars), non-human (e.g. a textbook) and non-corporeal (e.g. paradigms) actors to assess their role in producing a version of the past (e.g. a unified field of OT).

The authors reveal how the history, producing the paradigmatic idea of OT as a supposed field of inquiry, is not an account of an actual field of inquiry as much as it is the outcome of the shared and conflicted worldviews of multiple actors.

The unique and original contribution is in the tracking over time of the relationship between a known and important actor James March and the formation of a specific paradigm of OT. In particular, the authors focus on the factors and activities that formed or failed to form OT at points in time and James March’s role in this. In the process, the authors set out to learn not simply what James March achieved but how he achieved it.

The purpose of this study is to provide a critical analysis of contemporary Lean leadership in the context of a healthcare practice. The Lean leadership model supports professionals with a leading role in implementing Lean. This article presents a case study focusing specifically on leadership behaviours and issues that were experienced, observed and reported in a Dutch university medical centre.

This ethnographic case study provides auto-ethnographic accounts based on experiences, participant observation, interviews and document analysis.

Characteristics of Lean leadership were identified to establish an understanding of how to achieve successful Lean transformation. This study emphasizes the importance for Lean leaders to go to the gemba, to see the situation for one’s own self, empower health-care employees and be modest. All of these are critical attributes in defining the Lean leadership mindset.

In this case study, Lean leadership is specifically related to healthcare, but certain common leadership characteristics are relevant across all fields. This article shows the value of an auto-ethnographic view on management learning for the analysis of Lean leadership. The knowledge acquired through this research is based on the first author’s experiences in fulfilling his role as a health-care leader. This may help the reader examining his/her own role and reflecting on what matters most in the field of Lean leadership.

This chapter summarises the findings of a case study on social media activity during the 22 July 2011 terrorist attacks in Norway. Based on these findings and on theories and previous research on the role of social media in situation awareness (SA) configuration during crisis situations, the chapter offers seven recommendations for key communicators in official crisis management and response institutions, journalistic institutions, NGOs and others: (1) acknowledge social media as important and master monitoring and management of features across social media; (2) synchronise communication and establish a standard operating procedure (SOP); (3) establish and make known a joint social media emergency account; (4) participate, interact and take the lead; (5) be aware of non-hashtagged content; (6) implement verification tools and practices and (7) engage with and learn from celebrities.

This chapter analyses the Norwegian Twitter-sphere during and in the aftermath of the terrorist attack in Norway on 22 July 2011. Based on a collection of 2.2 million tweets representing the Twitter-sphere during the period 20 July–28 August 2011, the chapter seeks answers to how the micro-blogging services aided in creating situation awareness (SA) related to the emergency event, what role hashtags played in that process and who the dominant crisis communicators were. The chapter is framed by theories and previous research on SA and social media use in the context of emergency events. The findings reveal that Twitter was important in establishing SA both during and in the aftermath of the terrorist attack, that hashtags were of limited value in this process during the critical phase, and that unexpected actors became key communicators.