In many countries, women participate in politics at lower rates than men. This gap is often most pronounced among young adults. Civic education programs that provide non-partisan political information are commonly used to try to close this gender gap. However, information alone rarely reduces the gap and sometimes exacerbates it. We extend the literature emphasizing the psychological resources women need to participate by evaluating whether embedding efficacy-promoting messages within civic education reduces gender disparities in participation. In collaboration with Zambian civic organizations, we implemented a field experiment before national elections that randomly assigned urban young adults to an information-only course or the same course with efficacy-promoting messages. We find that the efficacy-promoting course substantially increased young women’s political interest and participation, narrowing gender gaps across a wide range of behavioral and attitudinal outcomes. We discuss the study’s implications for theories of political participation and the design of civic education.

The leptomedusa Dichotomia cannoides is reported for the first time from the Red Sea, extending its known distribution beyond the western Atlantic and western Pacific Ocean. Five specimens were documented in the northern Gulf of Aqaba, and one was collected for molecular analysis. In situ photography was used to extract diagnostic characters and natural habitus. DNA barcoding of the mitochondrial COI gene showed 98.03% identity with D. cannoides from Florida. Phylogenetic analysis confirmed its placement within D. cannoides, distinct from related leptothecate taxa. This finding increases the number of Leptothecata species recorded in the region to 15. The delayed detection of D. cannoides in the Red Sea may be due to its small size, limited seasonality or a recent introduction via ballast water or hull fouling. The species remains known only from its medusa stage. We further discuss how environmental DNA may help uncover its life cycle and those of other hydrozoans.

This study examines the future temporal reference (FTR) system among Francophones and Anglophones speaking English in Kapuskasing, Ontario. Previous studies have shown that in Laurentian French, the go future is the preferred variant, and the strongest determinant of variant choice is polarity: negatives strongly favor the inflected future. In Canadian English, the go future has no polarity effect and there is robust variation with will, highlighting a key contrast in the underlying constraints between the French and English FTR systems. The results show that while older Anglophones pattern in tandem with known studies of English, Francophones, as well as young Anglophones, exhibit the polarity contrast of the French system, even though they are speaking English. We suggest that these results may stem from social alignment between Francophones and Anglophones driven by increasing linguistic and social symmetry in the community, as well as increasing positive affect toward French in Kapuskasing.

Using a comparative reading of Antigone and Iphigenia, the paper illuminates how differing modes of finality within a political moment can be construed along gender lines. For feminine characters whose political life never experiences a birth while ensconced in the Athenian apparatus of male political oppression, understanding how Antigone and Iphigenia both become politically born by entering a mode of finality aids in pinpointing one of the very few agentic methods available to women in ancient Athens. Through a careful understanding of Greek tragedy, the place of women in Ancient Athens, and a discussion of views of gender during the time, the paper offers a multi-disciplinary view, understanding the text for what it is within a contemporary reading of gender. What does Antigone’s suicide imply about gendered power inside a political situation and what does Iphigenia’s sacrifice take away? Antigone’s suicide effectively makes her a masculine actor in the eyes of an Ancient Athenian spectator while Iphigenia’s sacrifice is uniquely feminine. This paper also represents preliminary work into the importance and significance of persons who are politically cornered but have open to them an intentional mode of finality.

The story of the Panama Canal is often framed as a morality tale juxtaposing French tragedy and American triumph (or imperialism). What gets lost in this depiction is a pair of adventurous entrepreneurs, Anthoine de Gogorza and Louis Lacharme, whose efforts led Ferdinand de Lesseps to his doomed canal project. This article shows how the roots of the Panama Canal emerged from the forests of Colombia’s Sinú River Valley, whose settlement, in turn, was fostered by the search for canal routes in the Darien. Yet despite the spatial proximity of these two regions, their overlooked connections were woven together through the ‘lifepaths’ of de Gogorza and Lacharme as they moved from France to Colombia and around the globalizing Atlantic of the nineteenth century. Following their movements, in turn, sheds light on the overlooked figure of the foreign speculator, the business of exploration, and marketing the tropics.

We introduce a relaxation of stability, called almost sure stability, which is insensitive to perturbations by subsets of Loeb measure $0$ in a non-standard finite group. We show that almost sure stability satisfies a stationarity principle in the sense of geometric stability theory for measure-independent elements. We apply this principle to deduce the existence of squares in dense almost surely stable subsets of Cartesian products of non-standard finite groups, possibly non-abelian. Our results imply qualitative asymptotic versions for Cartesian products of finite groups. In the final section, we establish the existence of $3\times 2$-grids (and thus of L-shapes) in dense almost surely stable two-dimensional subsets of finite abelian groups of odd order.

We estimated the vaccine effectiveness (VE) of second monovalent and bivalent booster vaccines containing Omicron BA.1 or BA.4/BA.5 and the protection conferred by natural immunity against SARS-CoV-2 infection in Luxembourg. We conducted a test-negative case–control study among residents aged 60 years or older by integrating national socio-demographic, COVID-19 vaccination, and testing data, achieving full population coverage. Using conditional logistic regression, we estimated absolute and relative VE of monovalent and bivalent boosters and natural immunity from prior infection. Our analysis included 5,390 test-positive cases and 11,048 test-negative controls matched by week of testing between September 2022 and April 2023. Absolute VE for monovalent and bivalent boosters decreased from 64.8% and 66.6% in the first month to 1.5% and 16.5% after 5–6 months, respectively. The bivalent was superior to the monovalent booster only in individuals without natural immunity (relative VE 25.7%, 95% confidence interval 11.4%; 37.7%). Natural immunity lasted longer than vaccine-induced immunity with 80.7% protected at 4–8 months and 44.9% at 15–25 months post-infection. Both second booster vaccines provided temporary protection against SARS-CoV-2 infection; bivalent boosters offered a slight benefit over monovalent boosters. Natural immunity appears to confer longer-lasting protection.

The global diffusion of sewing machines required concerted efforts from manufacturers, sales agents, and, most significantly, local consumers, who rendered the machine legible and desirable across diverse social settings. As this article shows, however, in politically volatile contexts, it was manufacturers who most decisively shaped these processes. Focusing on the Singer Company—the largest and most influential of its kind—the article examines how this process unfolded in the Ottoman empire during the Armenian massacres of the 1890s. Occurring when ethnic and religious homogeneity was becoming central to the political order, the Ottoman case offers an especially important early example of global firms’ responses to the emerging pressures of exclusionary—and often violent—political and economic reordering. The article traces how Singer tested adaptive strategies that not only sustained its regional presence but also recalibrated its business model. In doing so, it contributes to global history by demonstrating how seemingly localized episodes of political violence became formative sites of adaptation, attuning global corporations to a world increasingly structured by systemic violence, warfare, and demographic homogenization.

This study has investigated the relationship between the gut microbiota composition and the growth performance in pigs from birth to the finishing stage, focusing on nutrient metabolism. Of fifty-nine crossbred pigs [(Landrace × Large Yorkshire) × Duroc] from seven sows, individuals with high and low daily gain (DG) were assigned to high DG (HDG, n 11) and low DG (LDG, n 8) groups. Faecal samples collected at weaning (21 d), growing (95–106 d) and finishing (136–152 d) stages were analysed for amino acids, SCFA and microbial composition using 16S rRNA sequencing. Although birth and weaning weights were similar in both groups, the HDG group had significantly higher weights in the growing and finishing stages (P < 0·01). The microbial composition of the LDG group revealed a higher abundance of f_Lachnospiraceae;__ at weaning (P < 0·05), whereas the HDG group contained a higher abundance of g_Streptococcus and g_Prevotella 7 at the finishing stage (P < 0·05). Functional analysis revealed increased amino acid metabolism in the HDG group at the finishing stage (P < 0·05). During the growing stage, total free faecal amino acid content was low in the HDG group (P < 0·05); at weaning, levels of isobutyric and isovaleric acids, key amino acid fermentation products (P < 0·05, P < 0·01), were higher. These findings indicate growth stage-specific differences in the gut microbiota and metabolic profiles between groups with different growth performance, suggesting that microbial and metabolic characteristics may influence growth performance.

Continuous morphological traits play a crucial role in phylogenetic inference, yet they are often discretized due to limited software support and challenges of handling missing data efficiently. We present a new implementation of the Brownian motion model for continuous trait evolution in the Bayesian phylogenetics software MrBayes. Our approach efficiently accommodates any proportion of missing data and supports evolutionary rate variation across characters and data partitions. It is compatible with both non-clock and relaxed clock models. We validate the implementation through simulations and apply it to empirical datasets of pterosaurs and ancient humans, demonstrating that continuous traits can improve phylogenetic resolution. This development expands the methodological tool kit for morphological and total-evidence phylogenetics and is applicable across diverse taxonomic groups.

Beliefs in evil spirits and the practice of deliverance from supernatural forces have been widespread throughout history. Many psychological and physical afflictions have been attributed to involuntary demonic possession. Traditional remedies, for those reporting inhabitation by evil spirits, can involve exorcism believed to expel such forces. Similar beliefs may be symptomatic of major mental illness and treatments namely medication and psychotherapy, are frequently recommended. An increasingly secular western world is also seeing growth in non-denominational Christian churches and other faiths, who accept spirit possession and exorcism. Culturally competent mental health professionals, seeking to understand their patients’ world view, may struggle with exorcism, seeing it as an interference to conventional treatment. They may be being unwilling thus to attempt differentiation between possession and mental illness. This paper explores the diversity of views on this topic and points of contention and overlap. The risks and cautions necessary in approaching this issue are stressed.