In 1958, A.J.P. Taylor's essay The Troublemakers explored the tradition of dissent against power politics in the United Kingdom. Gaetano Salvemini, who had always shown a consistent interest in British political and cultural debates, shared many of the positions put forward by these ‘troublemakers’, such as free trade, the fight against military expenditure, and suspicions regarding standing armies. At the outbreak of the First World War, Salvemini used these arguments to support Italy's involvement in the war against autocratic and militarist central powers. Salvemini's journal L'Unità reported the stances expressed by a ‘troublemaker network’ called the Union of Democratic Control, despite their criticism of the United Kingdom's line of action during the war. In the course of the conflict, Salvemini kept in close contact with a specific group of ‘troublemakers’ around Robert Seton-Watson's journal The New Europe. Salvemini championed The New Europe's fight for subject nationalities in the Habsburg Empire, though he criticised their support of Yugoslavian claims to Istria, Trieste and Venezia Giulia. This essay will focus on the complex relationship between Salvemini and these British ‘troublemakers’ through the former's writings and correspondence.

Despite early imperial portenta being largely ignored in secondary literature, the reports of such incidents demand increased scholarly attention. This paper contends that decoding reports of portents from the early empire can give us fundamental insights into key moments of identity negotiation in this period. This paper will primarily focus on two such reports, signs of divine displeasure reported in Athens and in Camulodunum. This paper contends that within such reports we can glimpse complex and contested issues of identity creation and redefinition at intra-local, trans-local, and global levels.

Before the Omicron variant ran amok inside China in November 2022, the Chinese central government’s dynamic zero-COVID policy effectively contained the spread of the coronavirus and its variants during multiple waves of outbreaks. However, it was not without cost. This study examines the impacts of stringent lockdown interventions on urban residents’ mental health during the initial outbreak of the Omicron variant in the spring of 2022. Using survey data from 522 respondents within the same neighbourhood and a spatial quasi-experimental design, the results show that strict lockdown interventions are significantly related to higher levels of psychological distress after controlling for observed confounders and that lockdown interventions have further spillover effects on mental health for residents in adjacent residential compounds who are otherwise free. Moreover, the results show that the lack of material supplies and medical care plays a more salient role in explaining lockdown effects on psychological distress than residents’ social interaction and trust levels of COVID-19 policy. Policy and intervention implications are also discussed.

Existing literature shows the importance of maternity leave as a strategy for women to balance work and family responsibilities. However, only a few studies focused on the long-run impact of maternity leave length on maternal health. Therefore, how exactly they are related remains unclear. We examine women’s selection into different lengths of maternity leave as a potential explanation for the inconclusive findings in the literature on the association between maternity leave and maternal health. This study aims to unravel the association between maternity leave length and mothers’ long-term health in Germany. Drawing on detailed data from the German Statutory Pension Fund (DRV), we estimated the association between maternity leave length and sick leave from 3 years following their child’s birth for 4,243 women living in Germany in 2015 by applying discrete-time logistic regression. Our results show a negative relationship between maternity-leave length and long-term maternal health, likely driven by negative health selection. Long maternity leaves of more than 24 months were associated with worse maternal health in the long run, while a positive association emerged for vulnerable women with pre-existing health problems.

The idea that the sea is a dangerous and alien element in which one is at the mercy of higher powers, is deeply imbedded in Mediterranean culture, and has many parallels in Greek and Roman literature. From an Epicurean point of view, however, such higher powers belong to the realm of irrational beliefs which could threaten one's ἀταραξία (‘peace of mind’). What counts in Epicureanism is the rational calculus of all factors in order to minimize the influence of τύχη (‘chance’) on one's endeavours. This article explores how the Epicureans thought about the sea and its many dangers. It tries to establish under which circumstances the sage will travel by sea and gives special attention to Diogenes of Oenoanda's letter (fr. 71 + NF 214 + fr. 72 + fr. 70) about the shipwreck of Niceratus and his friends’ failure to minimize the agency of chance.

We report textural and compositional data for the titanosilicate narsarsukite [Na2(Ti,Fe3+)Si4(O,F)11] in peralkaline granites from the Papanduva Pluton in Graciosa Province, south-southeastern Brazil. Two distinct narsarsukite generations, one late magmatic and the other post-magmatic, were identified on the basis of textural and compositional features. The magmatic generation consists of larger, euhedral to subhedral variably zoned crystals and late poikilitic intergrowths between narsarsukite and albite laths, representing the crystallisation of the latest melt pockets. The post-magmatic generation forms smaller, typically fibrous crystals and irregular aggregates that occur interstitially or replace the primary mafic minerals, particularly arfvedsonite. Compositions of narsarsukite from the Papanduva Pluton cover most of the compositional range described in known occurrences. The magmatic generation is enriched in Zr and depleted in Al. The Fe3+ and Al contents show a positive correlation for the magmatic crystals, but a negative correlation for the post-magmatic narsarsukite. The Al/Fe3+ ratios are higher in the post-magmatic crystals and can be used to discriminate between the two generations. The compositional variations are controlled mainly by the heterovalent substitution (Ti, Zr)4+ + O2– = (Al, Fe)3+ + F1–, and are compatible with (OH)1– ions in the O site. Narsarsukite has significantly higher concentrations of mid REE+Y and HFSE and very low to absent contents of LREE and LILE relative to the host-rocks. The average REE pattern of the magmatic crystals is highly fractionated, consistent with the expected strong preference for the smaller HREE. The post-magmatic crystals that replace arfvedsonite have flatter patterns, with higher concentrations of LREE and MREE. Their compositions suggest a fluid phase relatively rich in HFSE, REE, Y, Pb, Th and U. Narsarsukite is a common phase in strongly peralkaline granites such as the Papanduva Pluton and the well-known Strange Lake Complex, and should be considered a diagnostic mineral of highly peralkaline SiO2-oversaturated rocks containing rare Ti and Zr mineral assemblages.

Prognostics and Health Management (PHM) models aim to estimate remaining useful life (RUL) of complex systems, enabling lower maintenance costs and increased availability. A substantial body of work considers the development and testing of new models using the NASA C-MAPSS dataset as a benchmark. In recent work, the use of ensemble methods has been prevalent. This paper proposes two adaptations to one of the best-performing ensemble methods, namely the Convolutional Neural Network – Long Short-Term Memory (CNN-LSTM) network developed by Li et al. (IEEE Access, 2019, 7, pp 75464–75475)). The first adaptation (adaptable time window, or ATW) increases accuracy of RUL estimates, with performance surpassing that of the state of the art, whereas the second (sub-network learning) does not improve performance. The results give greater insight into further development of innovative methods for prognostics, with future work focusing on translating the ATW approach to real-life industrial datasets and leveraging findings towards practical uptake for industrial applications.

It is known that various members of Constantine's family, of his own generation and the generation before, were Christian. It is often taken for granted that Constantine encouraged or required their Christian faith. However, in fact there is only evidence for Constantine's influence on the faith of his mother Helena. This paper examines the evidence for Christianity in the imperial family before Constantine became publicly Christian, and suggests that some of these women may even have been Christian independently of Constantine's influence.

Let me start with a fascinating volume that Paolo Felice Sacchi and Marco Formisano have edited on Epitomic Writing in Late Antiquity and Beyond, the first volume in the new series sera tela, devoted to ‘Studies in Late Antique Literature and its Reception’, edited by Marco Formisano. This inaugural volume gets the new series off to a very good start. Sacchi and Formisano offer a new approach to epitomic writing, seen as a typical product of late antique literary culture. The aim of the volume is to focus not so much on what is lost and cut out in the process of condensation, but on the value of the epitomic as a hermeneutic category as well as on its aesthetic value, both textual and visual. The individual contributions follow this editorial lead admirably closely, examining the interplay of repetition, fragmentation, dismemberment and re-composition, cutting and re-uniting, and defamiliarization, and showing how epitomic writing can be playful and entertaining, how it can represent a sophisticated act of interpretation, and serve as a ‘tool for investigating the very borders and paradoxes of language’ (12), even for conveying a spiritual experience.

I study whether the Dodd–Frank whistleblower program reduced informed trading by corporate insiders. To identify the effect, I partition firms based on the extent to which this program affected the likelihood of whistleblowing at each firm. I find a relative reduction in trading profits on purchases made by insiders at more affected firms after the program was initiated. I analyze insider sales in settings where they are more likely to be informed and find a reduction in the number of sales before negatively perceived events. The results suggest that whistleblower protections and rewards can effectively deter insider trading.

The figure of the Roman emperor – ubiquitous yet ever-elusive – remains the flame to which Roman historians are ever drawn. And Fergus Millar's The Emperor in the Roman World remains the yardstick against which all subsequent efforts are judged, and with which they are all inevitably in dialogue. That is true too of Caesar Rules, the major new offering from Olivier Hekster, a one-time doctoral student of Millar's, and now one of the leading contenders for his crown. Hekster's core interest is what the emperor was; in particular, how this institution could survive and adapt to changing circumstances despite the fact that formally it did not exist, certainly was not defined, and practically existed in a society antithetical on principle to both monarchy and change. Hekster finds the key for this long-worried lock in ‘the presentation and perception of power’ (10), and in particular the expectations – from all sides, and at all times – that both consolidated and constrained emperors’ authority. To demonstrate this he conceives a largely unprecedented ambition in this context: to consider source material in all media from the late Republic to the reign of Justinian.

The delay estimation for orthogonal frequency division multiplexing automotive radars can be achieved through the use of different filters. This paper compares two of these filters, namely the matched filter and the zero forcing filter through two metrics, which are the peak to side lobe ratio and the integrated side lobe ratio estimated on their range profiles. The analysis is then extended to the minimum mean squared error filter.

Using data on nearly 20,000 restaurants in China during the COVID-19 outbreak, we find evidence that the government-sponsored rent reduction program reduced debt overhang problems. Rent reductions, which averaged 36,000 RMB per restaurant, increase the open rate of restaurants by 3.7%, revenue by 11,000 RMB, and the number of employees by 0.36. Larger restaurants with higher committed costs benefit more from the rent reduction. The stimulus has a positive spillover effect that boosts the revenue of restaurants in the immediate vicinity of subsidized restaurants. The treatment effect varies with organizational structure in a manner consistent with an information frictions hypothesis.

This article seeks to offer some considerations on Telemachus’ journey to Pylos and Sparta (Hom. Od. 1–4), interpreting it in the light of his social position as heir of a basileus. Can the beginning of the Odyssey represent a sort of formation for the young prince? And how does the text support this reading? After a brief review of the features of a Homeric basileus, it will be argued that the narrative presents the growth of Telemachus as that of a young prince who needs to comply with those features, and become acquainted with the heroic world he lives in at peace.

We settle the question of how to compute the entry and leaving arcs for turnpikes in autonomous variational problems, in the one-dimensional case using the phase space of the vector field associated with the Euler equation, and the initial/final and/or the transversality condition. The results hinge on the realization that extremals are the contours of a well-known function and that the transversality condition is (generically) a curve. An approximation algorithm is presented, and an example is included for completeness.