Cardiac hydatidosis accounts for less than 2% of Echinococcus granulosus infections. Despite Syria’s high endemicity, paediatric cardiac involvement remains exceptionally rare and underreported. We report two Syrian children (aged 5.5 and 9 years) with giant interventricular septal hydatid cysts. Case 1 presented with significant hemodynamic obstruction, while Case 2 exhibited malignant ventricular arrhythmias. Both underwent successful cardiopulmonary bypass-assisted cystectomy with capitonnage repair and adjuvant albendazole therapy. These cases underscore (1) the life-threatening nature of advanced paediatric cardiac hydatidosis and (2) the critical role of early surgical intervention in endemic regions. Written informed consent for publication was obtained.

A conservative formulation of the drift-reduced fluid plasma model is constructed by analytically inverting the implicit relation defining the polarisation velocity as a function of the time derivative of the electric field. The obtained model satisfies exact conservation laws for energy, mass, charge and momentum, in arbitrary magnetic geometry, also when electromagnetic fluctuations are included.

In recent years, digital humanities (DH) research has evolved from its textual origins to encompass film and video studies as critical areas of inquiry as well. Nevertheless, much of this research has remained tied to the formal levels of description most readily revealed by automatic processing. This maintains a gap between treatments in terms of formal technical features and the concerns of many researchers involved in film analysis of a more qualitative, interpretative nature, thereby reiterating the classic tension within DH as such: that is, how to relate levels of description that are “computable” and those more responsive to broader humanities-oriented interests. In this article, we set out an approach to this challenge that incorporates a multi-layered analytic framework capable of specifying increasingly abstract descriptions in terms of patterns at lower levels. This enables us to start bringing concerns of narrative organization and interpretation into analysis at scale. We set out the overall approach and show several examples of its use.

This paper investigates a specific culture of interdisciplinarity that has gained traction at the intersection of applied AI and ethics. To address social and ethical harms of AI applications, scholars have suggested importing norms, methodologies and governance frameworks from established disciplines such as the social sciences or medicine. I show how this importation presupposes and endorses a framing of applied AI as a domain separate from established disciplines. Yet, such separation is what initially allows AI practitioners to operate outside those disciplinary norms that have evolved to prevent harms now associated with AI applications. Conversely, if AI applications were understood as situated firmly within these disciplines, practitioners would already be accountable to their norms and standards. Paradoxically, this culture of interdisciplinarity might thus reinforce a problematic disciplinary isolation of applied AI underlying the very ethical issues it seeks to mitigate – fighting symptoms while playing into their cause. In response, I outline three paths forward.

The growth in economic inequality in the United States over the past forty years has stimulated interest among scholars in the effects of exposure to inequality on the American people. A prominent vein of scholarship explores whether exposure to inequality diminishes belief in a key pillar of the ‘American dream’ – the meritocratic ideal that hard work will translate to economic success. We offer this literature a novel test that explores the relationship between quotidian exposure to economic inequality in one’s adolescent residential context and belief in the American dream among roughly 1.3 million late-adolescent Americans entering college. We find that adolescent residence in high-inequality areas is associated with decreased belief in the American dream upon entering adulthood. Further analysis revealed that this relationship is most pronounced among young Americans raised in higher income households.

This paper engages with recent work on formalization in economics to develop a new perspective on mathematization. Boylan and O’Gorman draw on foundations of mathematics to argue that classical mathematics is inappropriate for economics; intuitionistic foundations and constructive mathematics should be used instead. The use of real analysis would be blocked and equilibrium results undermined. I argue that their line of thought faces several challenges; however, I then draw on their analyses and the philosophy of applied mathematics to propose a novel approach in which questions about mathematization are properly understood as questions about the contextual aptness of relevant idealizations.

We study fibrations of the projective model for the symmetric space associated with $\operatorname {\mathrm {SL}}(2n,\mathbb {R})$ by codimension $2$ projective subspaces, or pencils of quadrics. In particular we show that if such a smooth fibration is equivariant with respect to a representation of a closed surface group, the representation is quasi-isometrically embedded, and even Anosov if the pencils in the image contain only nondegenerate quadrics. We use this to characterize maximal representations among representations of a closed surface group into $\operatorname {\mathrm {Sp}}(2n,\mathbb {R})$ by the existence of an equivariant continuous fibration of the associated symmetric space, satisfying an additional technical property. These fibrations extend to fibrations of the projective structures associated to maximal representations by bases of pencils of quadrics.

Sexually transmitted infections (STIs) are common among people living with human immunodeficiency virus (HIV) (PLWH). This nationwide register study linked HIV and STI registries to examine STI trends before and after HIV diagnosis in Finland 1995–2019 among all PLWH residing in the country. Analysed STIs were chlamydia, gonorrhoea, syphilis, and hepatitis B and C. An extended Cox model assessed factors associated with STI events. Among 3,775 PLWH (mean follow-up 17.9 person-years), 71% had no STIs, 17% had one, and 12% had two or more. Overall, 10.7% had an STI before HIV diagnosis and 18.1% after. STI incidence was 32 per 1,000 person-years and increased over time, although chlamydia and gonorrhoea declined. STI risk was highest among men who have sex with men (MSM) and lowest among people who inject drugs; it remained stable or declined after HIV diagnosis. STIs before HIV diagnosis offer opportunities for HIV testing and pre-exposure prophylaxis promotion. As most had no STIs other than HIV, HIV testing should not be limited to STI screening but also performed in other indicator conditions. After HIV diagnosis, accessible low-threshold STI testing, particularly for MSM, and consideration of doxycycline prophylaxis may benefit those at highest risk.

Transnational anti-trans actors fall into two camps: traditionally conservative actors who pursue transphobia to extend patriarchy and feminists who pursue transphobia to challenge patriarchy. This article investigates how shared language and practices of anti-trans feminist and traditionalist coalitions enact opposing sex/gender orders. I explain this alliance through grounded theory generated from a critical discourse analysis of my dataset of 1016 anti-trans texts from 175 organizations. I develop my Affective Orientation Threat Structure, which explains the affective governing process of this coalition, and then apply this framework to anti-trans discourses about trans threats to womanhood. I find that anti-trans feminists and traditionalists generate fear via shared threat constructions but frame threat differently in order to mobilize affective energy in service of diverging regulative regimes and sex/gender orders. I argue that the illogics produced by contradictions within this incompatible coalition benefit both camps by maximizing affective disorientation and generating momentum through paradox.

This paper is in line with research that analyzes the careers of European parliamentarians, adopting a comparative and cross-sectional approach and taking into account previous and subsequent political experiences in a multilevel perspective. Indeed, we propose a comparison between two similar cases, namely two southern European countries that have a quasi-federal system or are affected by an important regionalization process – Spain and Italy – and we examine a rather long time period ranging from the IV to the IX EP legislature. Our dataset consists of 508 observations, 195 relating to Spanish members of the European Parliament (MEPs) and 313 to Italian ones. By relying on the recent systematization, we propose to classify MEPs’ career models – which are our dependent variable – into four types: the EU shorter-termers, the ‘stepping stone’ MEPs, the EU long-termers, and the ‘multilevel surfers’. A multinominal regression analysis was conducted to understand which political factors (party affiliation of MEPs, length of previous career, critical European Parliament [EP] elections) may have a specific impact on each career type. We found that, after the 2014 EP critical election, the probability of MEPs engaging in the EP decreases, as they are more likely to develop a short-term career model than a long-term one. In addition, previous national experience and a regional executive career are the best predictors of a multilevel career.