We use a novel experiment in China to examine the effects of having a quasi-official investor own a small number of shares on specific firm outcomes. We find that, relative to control firms, pilot firms experience an increase in dissenting votes from independent directors, a reduction in tunneling and earnings management activities, and an improvement in merger performance. Independent directors questioned by the quasi-official shareholder in activism events subsequently lose board seats in the director market. Overall, our results shed light on a new mechanism for enhancing the protection of minority shareholders.

In this article, I argue that iconographic pathography provides a transformational form of storytelling for ill persons and the communities around them. This work addresses the reduction of illness narration to clinical vocabularies. It targets often excluded communities—chronic and terminal narrators—as well as promotes ethical practices of creative and collaborative inclusion for ecclesial communities. I use Devan Stahl’s Imaging and Imagining Illness as an example of this distinctive form of pathography, first differentiating it from other narrative forms of the genre as well as contextualizing its decentralized narrational form with criteria drawn from icons’ emergence within early Christian art. I claim that such decentralized narration changes the trajectory of self-understanding for the ill person as well as the ethical response required for those who bear witness to such narratives.

We give a simple sufficient condition for Quinn’s ‘bordism-type’ spectra to be weakly equivalent to commutative symmetric ring spectra. We also show that the symmetric signature is (up to weak equivalence) a monoidal transformation between symmetric monoidal functors, which implies that the Sullivan–Ranicki orientation of topological bundles is represented by a ring map between commutative symmetric ring spectra. In the course of proving these statements, we give a new description of symmetric L theory which may be of independent interest.

This article presents a systematic review on the use of eye-tracking technology to assess the mental workload of unmanned aircraft system (UAS) operators. With the increasing use of unmanned aircraft in military and civilian operations, understanding the mental workload of these operators has become essential for ensuring mission effectiveness and safety. The review covered 26 studies that explored the application of eye-tracking to capture nuances of visual attention and assess cognitive load in real-time. Traditional methods such as self-assessment questionnaires, although useful, showed limitations in terms of accuracy and objectivity, highlighting the need for advanced approaches like eye-tracking. By analysing gaze patterns in simulated environments that reproduce real challenges, it was possible to identify moments of higher mental workload, areas of concentration and sources of distraction. The review also discussed strategies for managing mental workload, including adaptive design of human-machine interfaces. The analysis of the studies revealed a growing relevance and acceptance of eye-tracking as a diagnostic and analytical tool, offering guidelines for the development of interfaces and training that dynamically respond to the cognitive needs of operators. It was concluded that eye-tracking technology can significantly contribute to the optimisation of UAS operations, enhancing both the safety and efficiency of military and civilian missions.

African contemporary choreographers increasingly delink from Eurocentric performance conventions and work toward establishing local conditions of production and consumption by performing in public spaces. Although the labor undertaken to shift power asymmetries does not always result in structural changes, their art may be considered decolonial creative expression. Based on ethnographic research at the third and fourth editions (2022 and 2023) of Fatou Cissé’s street performance festival, La ville en mouv’ment (The City in Movement), in Dakar, Senegal, the author argues that decolonial potentiality extends beyond the precarious economic conditions to encapsulate the artists’ return to public space and futurist aesthetics.

Recently, Alanazi et al. [‘Refining overpartitions by properties of nonoverlined parts’, Contrib. Discrete Math. 17(2) (2022), 96–111] considered overpartitions wherein the nonoverlined parts must be $\ell $-regular, that is, the nonoverlined parts cannot be divisible by the integer $\ell $. In the process, they proved a general parity result for the corresponding enumerating functions. They also proved some specific congruences for the case $\ell =3$. In this paper we use elementary generating function manipulations to significantly extend this set of known congruences for these functions.

In the study of plane curves, one of the problems is to classify the embedded topology of plane curves in the complex projective plane that have a given fixed combinatorial type, where the combinatorial type of a plane curve is data equivalent to the embedded topology in its tubular neighborhood. A pair of plane curves with the same combinatorial type but distinct embedded topology is called a Zariski pair. In this paper, we consider Zariski pairs consisting of conic-line arrangements that arise from Poncelet’s closure theorem. We study unramified double covers of the union of two conics that are induced by a $2m$-sided Poncelet transverse. As an application, we show the existence of families of Zariski pairs of degree $2m+6$ for $m\geq 2$ that consist of reducible curves having two conics and $2m+2$ lines as irreducible components.

We study global-in-time dynamics of the stochastic nonlinear beam equations (SNLB) with an additive space-time white noise, posed on the four-dimensional torus. The roughness of the noise leads us to introducing a time-dependent renormalization, after which we show that SNLB is pathwise locally well-posed in all subcritical and most of the critical regimes. For the (renormalized) defocusing cubic SNLB, we establish pathwise global well-posedness below the energy space, by adapting a hybrid argument of Gubinelli-Koch-Oh-Tolomeo (2022) that combines the I-method with a Gronwall-type argument. Lastly, we show almost sure global well-posedness and invariance of the Gibbs measure for the stochastic damped nonlinear beam equations in the defocusing case.

As the US Supreme Court was preparing to overturn Roe v. Wade, the Mexican Supreme Court issued a series of sweeping rulings to liberalize abortion—part of a larger trend across Latin America (Daby and Moseley 2022; Fernandez Anderson 2017; Reuterswärd 2020; Ruibal 2014). Mexico has created a nationwide standard of access to abortion services, whereas the United States has abandoned universal legal abortion and embraced a patchwork system in which each state has different laws regulating reproductive healthcare. Why are these two neighbors on such divergent paths? This contribution to the symposium compares the ways that federalism and judicial politics have interacted in Mexico and the United States to explain the different trajectories of abortion policy. The divergent paths of the United States and Mexico can be explained by the two countries’ different experiences with democracy and political and institutional differences between the judiciaries. A different civil-society and constitutional context also has played a role.

Congenital left ventricle to coronary sinus fistulas are exceptionally rare, and only a few case reports of this condition exist. These fistulas may isolated or occur in conjunction with other CHDs. In this case report, we describe an 18-month-old boy who presented to our centre with a diagnosis of mitral valve insufficiency and a coronary sinus-type atrial septal defect. Upon echocardiographic evaluation, he was found to have a rare congenital left ventricle to coronary sinus fistula. Echocardiographic examination established the diagnosis. Contrary to initial suspicions, mitral regurgitation and atrial septal defect were not present. Instead, the echocardiogram revealed a left ventricular to coronary sinus fistula accompanied by dilation of the coronary sinus. These findings were corroborated by CT angiography. The fistula was then successfully occluded using a transcatheter method. Follow-up assessments at one-year post-procedure showed no complications and no evidence of significant shunting on echocardiography.

Reverse Mathematics (RM) is a program in the foundations of mathematics where the aim is to find the minimal axioms needed to prove a given theorem of ordinary mathematics. Generally, the minimal axioms are equivalent to the theorem at hand, assuming a weak logical system called the base theory. Moreover, many theorems are either provable in the base theory or equivalent to one of four logical systems, together called the Big Five. For instance, the Weierstrass approximation theorem, i.e., that a continuous function can be approximated uniformly by a sequence of polynomials, has been classified in RM as being equivalent to weak König’s lemma, the second Big Five system. In this paper, we study approximation theorems for discontinuous functions via Bernstein polynomials from the literature. We obtain many equivalences between the latter and weak König’s lemma. We also show that slight variations of these approximation theorems fall far outside of the Big Five but fit in the recently developed RM of new ‘big’ systems, namely the uncountability of ${\mathbb R}$, the enumeration principle for countable sets, the pigeon-hole principle for measure, and the Baire category theorem.