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This study aims to discuss the effect of carbon nanotubes (CNTs) on the mechanical properties of acrylonitrile–butadiene–styrene (ABS) composites fabricated by additive manufacturing (AM). Insight into the energy-dissipation mechanisms introduced and/or enhanced by the addition of CNTs is presented in this study.

ABS/CNT filaments were fabricated with different concentrations of CNTs. Using a fused deposition modeling approach, unidirectional specimens were printed using a MakerBot Replicator 2X (MakerBot Industries, Brooklyn, NY, USA). Specimens were tested under static and dynamic conditions, with the loading coinciding with the printing direction, to determine elastic modulus, strength and viscoelastic properties.

A CNT reinforcing effect is evident in a 37 per cent increase in elastic modulus. Likewise, the strength of the composite increases by up to 30 per cent with an increase in weight fraction of CNTs. At low dynamic strain amplitudes (0.05 per cent), a correlation between dissipated strain energy of the butadiene phase and strength of the composite is found such that less dissipation, from constraint of the butadiene particles by the CNTs, leads to higher strength of the composite. At higher dynamic strains, the presence of a high concentration of CNT leads to increased energy dissipation, with a maximum measured value of 24 per cent higher loss factor compared to baseline specimens. Because the trend of the composite behavior is similar (with a higher absolute value) to that of neat ABS, this study’s results indicate that well-established polymer/CNT dissipation mechanisms (such as stick-slip) are not significant, but that the CNTs amplify the dissipation of the ABS matrix by formation of crazes through stress concentrations.

This study provides knowledge of the dissipation behavior in additively manufactured ABS/CNT composites and provides insight into the expansion to new printable materials for dynamics applications.

The purpose of this paper is to present a narrative review of studies on the citing behavior of scientists, covering mainly research published in the last 15 years. Based on the results of these studies, the paper seeks to answer the question of the extent to which scientists are motivated to cite a publication not only to acknowledge intellectual and cognitive influences of scientific peers, but also for other, possibly non‐scientific, reasons.

The review covers research published from the early 1960s up to mid‐2005 (approximately 30 studies on citing behavior‐reporting results in about 40 publications).

The general tendency of the results of the empirical studies makes it clear that citing behavior is not motivated solely by the wish to acknowledge intellectual and cognitive influences of colleague scientists, since the individual studies reveal also other, in part non‐scientific, factors that play a part in the decision to cite. However, the results of the studies must also be deemed scarcely reliable: the studies vary widely in design, and their results can hardly be replicated. Many of the studies have methodological weaknesses. Furthermore, there is evidence that the different motivations of citers are “not so different or ‘randomly given’ to such an extent that the phenomenon of citation would lose its role as a reliable measure of impact”.

Given the increasing importance of evaluative bibliometrics in the world of scholarship, the question “What do citation counts measure?” is a particularly relevant and topical issue.

The overall goal of science is to build a valid and reliable body of knowledge about the functioning of the world and how applying that knowledge can change it. As personnel and human resources management researchers, we aim to contribute to the respective bodies of knowledge to provide both employers and employees with a workable foundation to help with those problems they are confronted with. However, what research on research has consistently demonstrated is that the scientific endeavor possesses existential issues including a substantial lack of (a) solid theory, (b) replicability, (c) reproducibility, (d) proper and generalizable samples, (e) sufficient quality control (i.e., peer review), (f) robust and trustworthy statistical results, (g) availability of research, and (h) sufficient practical implications. In this chapter, we first sing a song of sorrow regarding the current state of the social sciences in general and personnel and human resources management specifically. Then, we investigate potential grievances that might have led to it (i.e., questionable research practices, misplaced incentives), only to end with a verse of hope by outlining an avenue for betterment (i.e., open science and policy changes at multiple levels).

This paper is the first to use the individual level, longitudinal catch-up growth of boys and girls in a historical population to measure their relative deprivation. The data is drawn from two government schools, the Marcella Street Home (MSH) in Boston, MA (1889–1898), and the Ashford School of the West London School District (1908–1917). The paper provides an extensive discussion of the two schools including the characteristics of the children, their representativeness, selection bias and the conditions in each school. It also provides a methodological introduction to measuring children’s longitudinal catch-up growth. After analysing the catch-up growth of boys and girls in the schools, it finds that there were no substantial differences between the catch-up growth by gender. Thus, these data suggest that there were not major health disparities between boys and girls in late-nineteenth-century America and early-twentieth-century Britain.

In the 1990s, European social democrats coalesced around a set of principles often referred to as the third way – characterised by prudent economic governance, a slimmer public sector, ‘productive’ welfare services and attraction to inward investment. Third way proponents perceived fairness as supporting opportunity rather than redistributing welfare. On the way to the late 2000s, their sense of direction was lost. The final phase, one might argue, ended with the 2008–2009 financial crisis. Henceforth, the challenge for the Left concerned how to define a social democracy with less revenue and limited scope for expanding public services, while reaching out to the so-called left-behinds through better jobs and a renewed sense of common purpose.

Jeremy Corbyn and Emmanuel Macron represent two distinctly different attempts at forging a new way forward from the impasse. During Corbyn's tenure as a leader (2015–2020), Labour carved out space by moving leftwards on key economic policies while proffering communitarianism as the antidote to globalised capitalism. Across the English Channel, Macron's new party, La République En Marche, sought to generate a new form of politics that had clear similarities with the centrism of third way social democracy, supplemented by an emphasis on social dialogue and enhanced European integration as a strategy for harnessing globalisation.

Corbynism and Macronism represent two distinct attempts at centre-left renewal, both personalised yet evolving on the back of mass movements. This chapter summarises the trajectory of both in terms of ideological content and organisational change and asks what lessons they convey about the future of social democracy in the twenty-first century.

We document the emergence of the Lead Independent Director (LID) board role in a sample of U.S. firms from 1999–2015. We find that firms that adopt an LID board role are larger and have more independent boards, higher institutional investor holdings, and an NYSE listing. Firms with greater anticipated benefits from monitoring also adopt an LID role, e.g., firms with dual CEO-Chairman, with more takeover defense mechanisms, and with higher cash holdings. Using an event study methodology, we find that investors respond positively to the adoption of an LID board role. Lastly, using instrumental variables to address endogeneity in the LID board role, we find that firms with an LID are more likely to terminate poorly performing CEOs. Taken as a whole, these results suggest that the LID board role enhances firm value and improves the quality of corporate governance.

Roland Joffé, the film-maker behind the significant critical hits The Killing Fields (1984) and The Mission (1986), employed a hypnotic aesthetic, which unflinchingly depicted violence and brutality within different cultural contexts. In 2007, he used a no less impressive aesthetic in a similar way, although this film, Captivity, was met with public outcry, including from self-proclaimed feminist film-maker Joss Whedon. This was based upon the depiction, in advertisements, of gendered violence in the popularly termed ‘torture porn’ subgenre, which itself has negative gendered connotations.

We aim to revisit the critical reception of Captivity in light of this public controversy, looking at the gendered tensions within considerations of genre, narration and aesthetics. Critics assumed Captivity was an attempt to capitalize on the popularity of the torture horror subgenre, and there is evidence that the film-makers inserted scenes of gore throughout the narrative to encourage this affiliation. However, this chapter will consider how the film works as both an example of post-peak torture horror and an interesting precursor to more overtly feminist horror, such as A Girl Walks Home Alone at Night (2014) and Raw (2017). This is seen through the aesthetic and narrative centralizing of a knowing conflict between genders, which, while not entirely successful, does uniquely aim to provide commentary on the gender roles which genre criticism of horror has long considered implicit to the genre’s structures and pleasures.

Disciplinary school exclusion has negative consequences in terms of academic achievement, well-being, mental health, and future prospects. Permanent and temporary school exclusions rates in England are much higher than in the rest of the United Kingdom and disproportionately affect students with special needs, from care backgrounds, living in poverty, and from particular ethnic backgrounds. This chapter argues that looking at the issue of school exclusion is another way of looking at issues of inclusion and diversity in schools and that these are central concerns for initial teacher education programs. The chapter illustrates this argument by reporting some of the preliminary findings from the 4-year ESRC funded project The Political Economies of School Exclusion Across the UK (2019–2023) led by the Excluded Lives Research team at the University of Oxford. The main objective of this research has been to develop a home international multidisciplinary understanding of the landscapes of political economies and the experiences and consequences of school exclusion across the United Kingdom.