The morphology of female bopyrids is adapted to parasitism, but understanding the function of their thoracic and mouth appendages is hindered by their small size and cryptic lifestyle, limiting detailed examination. This study aimed to clarify the function of the first oostegites and maxillipeds in bopyrid isopods infesting the branchial chamber of caridean shrimp through behavioural observations and morphological examination. We tested whether the movement of these structures was exclusive to ovigerous female parasites during brood ventilation. The results revealed that the beating of the maxillipeds and flapping of the first oostegites were not restricted to ovigerous females. However, the frequency of these movements was significantly higher in ovigerous females than in non-ovigerous females. The frequency of maxilliped beating increased with embryonic development, whereas that of flapping the first oostegites exhibited the opposite trend. Microscopic observation using dye showed that the movements of the maxillipeds and the first oostegites expelled residual dye from the female brood chamber through the dorsal surface or beneath the first oostegites. The dye was then transported by the water current generated by the scaphognathite of the host shrimp. These findings suggest that these structures not only facilitate ventilation but also serve as a grooming mechanism for female parasites, which is critical for embryonic survival. The results of the present study represent the first observation of embryo grooming in bopyrid isopods. This study also provides new information on the functional morphology of bopyrid isopods, which is important for understanding their ecological dynamics and adaptation to parasitism.

This article progresses Second World War historiography of ‘enemy alien’ internment, especially of the SS Arandora Star, sunk in 1940 with a high loss of Italian civilian lives. Employing a new paradigm, that of the deathscape, defined as a topography of death and the practices that surround it, this investigation recontextualises Arandora Star remembrance in Scotland. Ambiguous loss, complicated grieving, disenfranchisements in mourning and absences in multiple layers of the deathscape form overarching themes that are explored in parallel to emotional-affective memory. The previously neglected study of individual memorialisation, both private and ‘official’, provides an important primary source in the fragmented materiality of the deathscape, allowing fresh insight on both cultural manifestations and political context. As the material and cultural apex of the deathscape, the Italian Cloister Garden and Arandora Star Memorial in Glasgow, created by Archbishop Mario Conti in 2011, are evaluated through the lenses of leadership, identity and heritage activism.

The aim of this research was to investigate the ability of an in vitro simulated gastrointestinal digestion (SGID) to generate peptides from bovine lactoferrin (LF) that possess antibacterial activity. Escherichia coli was examined as the target pathogen due to its prevalence in foods and the well-documented antibacterial effect of both LF and LF peptides against this organism. Results showed that in-vitro digested LF, specifically gastric LF digesta, exhibited significant antibacterial activity at low concentrations against E. coli compared to its undigested counterpart. Additionally, the highest antibacterial activity in the gastric digesta was associated with a relatively high molecular weight fraction of >30 kDa obtained within the first 30 min of the SGID. This demonstrates that the digestive process can result in the generation of antibacterial LF peptides and contribute to improving the antimicrobial properties of LF exhibited in its undigested state, making it a suitable dairy food additive to potentially provide protection against bacterial pathogens within the gastrointestinal system.

This article discusses changes to the Prehospital and Disaster Medicine (PDM) mission statement which will take effect as of January 1, 2025. The new mission statement focuses on innovative, high-impact, evidence-based research.

The roots of the Arab world’s current Russian entanglements reach deep into the tsarist and Soviet periods. However, this shared history has fallen through the cracks of academic structures that approach the two regions separately. This roundtable, part of a growing scholarly effort to heal the area studies divide, expands and reflects on the recently published book Russian-Arab Worlds: A Documentary History, which we co-edited with historian Eileen Kane.1

The reviewed volumes represent the past and future of triangulating human prehistory. Both works address the integration of the knowledge embedded in the Indo-European group of languages into the interpretation of archaeological and genetic data, but approach this very differently. By enlisting the expertise of scholars from the three different fields, with 22 contributions from more than 40 scholars from more than 10 different countries, The Indo-European puzzle revisited is both a seminal work and a resounding commentary on the, by its very nature, limited perspectives voiced by Jean-Paul Demoule as a sole archaeologist author of his book The Indo-Europeans. The title of the former is based on the subtitle of Colin Renfrew's Archaeology and language: the puzzle of Indo-European origins (1987), another archaeologist's foray into historical linguistics.