European navigation in the age of sail owes much to the scientific revolution of the seventeenth century and the development of instruments and advanced mathematical techniques. Important though these developments were, it is argued here that close observation of the environment: of the weather, ocean currents, clouds, birds, mammals, and a host of other factors played a far more important role in safe navigation from one part of the globe to another.

Despite significant research, the direct and indirect causes of a population decline in the eponymous foragers of the Late Jōmon period (c. 4500–2300 BP) in Japan remains undetermined. Here, the authors examine the impact of nutritional stress, using scurvy as a case study, on Middle and a Late/Final Jōmon populations. While an increase in the prevalence of scurvy between the time periods is apparent, no associated change in age at death was observed. The authors argue that the Late Jōmon adapted their food-sharing practices in times of ecological stress, and they highlight the need to consider morbidity and mortality together in palaeopathological assessments and the growing evidence for a non-nutritional cause in the Late Jōmon population decline.

At the request of the Middelheim Museum, artist Nico Dockx and art historian Johan Pas, from the ArchiVolt research group of the Royal Academy of Fine Arts Antwerp, undertook a survey of the museum's library collection. Between March 2022 and December 2023, they examined the phenomenon of artists' publications from a range of perspectives, through a series of conversations with artists, designers, publishers and collectors, a symposium, and the book A kind of a ‘Huh?’ Artists' publications: (Not) a user's manual. We discussed these and other related projects with them.

In November 2023 the United Nations (UN) General Assembly and Security Council elected (in one case, re-elected) five judges to the International Court of Justice. The electoral system is considered to be overly politicized and to pay lip service to the requirements that judges must be elected on the basis of their qualifications, regardless of their nationality, and that in the body as a whole, the representation of the main forms of civilization and the principal legal systems of the world should be assured. Several amendments to the system of nominations and elections have been proposed that would require a reform of the Court's Statute. This article proposes four measures that could be adopted without amending the Statute or encroaching on the prerogatives of national groups, UN organs or Member States: (1) ensure the representation of the principal legal systems, in part by promoting regional diversity on the bench; (2) remove the use of nationality as a factor in casual elections; (3) establish a vetting process and public hearings; and (4) promote a single vote for Security Council members. It argues that the measures proposed would lead to a change in the present culture of nominations and elections towards one that favours the qualification of the judges over political considerations.

We study tropical line arrangements associated to a three-regular graph $G$ that we refer to as tropical graph curves. Roughly speaking, the tropical graph curve associated to $G$, whose genus is $g$, is an arrangement of $2g-2$ lines in tropical projective space that contains $G$ (more precisely, the topological space associated to $G$) as a deformation retract. We show the existence of tropical graph curves when the underlying graph is a three-regular, three-vertex-connected planar graph. Our method involves explicitly constructing an arrangement of lines in projective space, i.e. a graph curve whose tropicalization yields the corresponding tropical graph curve and in this case, solves a topological version of the tropical lifting problem associated to canonically embedded graph curves. We also show that the set of tropical graph curves that we construct are connected via certain local operations. These local operations are inspired by Steinitz’ theorem in polytope theory.

This article is based on the presidential address presented to the Society for Historians of the Gilded Age and Progressive Era at the meeting of the Organization of American Historians in Los Angeles in 2023. Its focus is Maury Diggs and Drew Caminetti, two white men from Sacramento, California, charged with violating the Mann Act (known as the White Slave Trafficking Act) in 1913. The Gilded Age and Progressive Era obsession with white slavery, a phenomenon that has particular resonance in today’s climate, reveals the power of moral panics. Examining the steps, and missteps, that various legal, social, and political entities, including all three branches of government, took in response to Diggs and Caminetti’s actions highlights some of the major social changes gripping the nation. Moral panics can be investigated as crucial historical sites of contestation, revealing efforts to neutralize or turn back the societal changes perceived to be the greatest threat to the prevailing social power structure—in this case foreigners, the new leisure culture, the liberalization of sexual attitudes, and the threat of female independence. Understanding the origins and repercussions of past moral panics can help identify, understand, and possibly defuse future panics.

This article explores the consequences of the Austro-Hungarian Empire's end through the tumultuous biography of a philanthropic entrepreneur and quasi-consul community leader known today for assisting thousands of Jewish refugees during World War II. Focusing on Paul Komor (1886–1973) and the migrant community of Shanghai Hungarians, the article contends that postimperial diasporas preserved a piece of empire in their commitment to Jewish emancipation, imperialist nationalism, multiple loyalties, and political nostalgia. It also argues that diasporic networks and charitable actions communicated political and national loyalties while creating and defining the boundaries of the community. Presenting original research involving sources in multiple languages from China, Hungary, the U.S., the U.K., and the Netherlands, the article traces the fortunes of a Jewish Hungarian family in colonial Shanghai, shows the limits of its son's charity-rooted advancement in community leadership, sheds light on the seemingly contradictory political ideas of a postimperial expatriate to explain his complicated relationship with his kinstate, and analyzes the institutionalization of communal charity and the competing prerequisite definitions of postimperial national belonging.

Seaton Snook was a thriving community of fishermen, blacksmiths, teachers, seacoalers, labourers and musicians on the coast of County Durham, UK. After 1968, however, government records and newspaper reports referring to the town cease and there are, apparently, no former residents still living. This article outlines the creation of What Happened to Seaton Snook?, an internet-based archive of sounds and music from the area, its residents and its workers, devised to try and form a picture of the town and what happened there. Among the nearly 100 artefacts in this ethnomusicological study are pieces for piano and harpsichord, pedagogic works, folk tunes for voice and Northumbrian smallpipes, brass band music, Krautrock, psychedelic rock and works for magnetic tape. There are biographies and photographs of people key to the history of the town, and interviews with experts in matters pertaining to the artefacts. The archive also seeks to examine the economic and cultural neglect of the North East of England and the importance of the stories we tell around the music we make.

This paper investigates the effect of curvature on curved detonation and its reflections. Specifically, the study focuses on two aspects: the effect of curvature on the postwave parameters and their gradients, and the stabilization of Mach reflection. Relationships are established between the curvature and the gradients of the postwave parameters, thus providing a basis for examining detonation reflections and obtaining a comprehensive understanding of curved detonation. In particular, these relationships offer a valuable analytical tool to predict the postwave gradients, as well as providing a fresh perspective to understand the transformation from Mach reflection to regular reflection in curved detonation. The validity of these relationships is confirmed by comparison with simulation results. Two mechanisms by which curvature influences the stationarity of Mach reflection are identified. An increase in wave angle and interference between wave systems leading to the generation and integration of subsonic zones are the reasons for the non-stationarity of the Mach reflection in curved detonation. Besides, the effect mechanisms of choked flow which is considered to be the root cause are analysed in detail. On the basis of a theoretical model, the development of a quantitative criterion for the stability of detonation reflection is proposed, and its validity is confirmed by simulations. This criterion is used in a comprehensive investigation of the primary factors affecting the stability of detonation wave reflections, providing insights that will be of great value for the further development of detonation engines.

In this article, we explore the longue durée philosophical background of Mughal Emperor Akbar's sun worship. Although Akbar's sun project may have been triggered by contemporary Hindu and Zoroastrian ideas and practices, we argue that Akbar's Neoplatonic advisers reframed it as a universal cosmotheistic tradition that, at the start of the new millennium, served as the perfect all-inclusive imperial ideology of Akbar's new world order. The astonishing parallels with the much earlier Neoplatonic sun cult of Roman Emperor Julian demonstrate that, although having characteristic of its own, Akbar's sun project was not that unique and should be seen as a fascinating late example of a so-far completely forgotten ancient Neoplatonic legacy of seeing the philosopher king, via the Sun, via illumination, connected to the One.

The deployment of digital technologies in African cities, beyond improving service delivery, raises issues of digital inclusion, digital rights, and increasing spatial and social inequalities. As part of the African Cities Lab Summit 2023, we conducted a workshop with 20 multidisciplinary participants to explore issues related to the deployment of digital technologies in African cities. This research is a policy paper that addresses these issues and provides policy recommendations for local governments. It emphasizes the importance of inclusive digital infrastructure, regulations safeguarding vulnerable sectors, and governance ensuring citizens’ rights in the digital transformation. Focusing on transparency, equity, and collaboration with communities, local governments play a vital role in fostering inclusive digital transformation, essential for equitable and rights-centric smart cities in Africa.