We present sufficient conditions for the triviality of the automorphism group of regular Toeplitz subshifts and give a broad class of examples from the class of ${\mathcal B}$-free subshifts satisfying them, extending the work of Dymek [Automorphisms of Toeplitz ${\mathcal B}$-free systems. Bull. Pol. Acad. Sci. Math. 65(2) (2017), 139–152]. Additionally, we provide an example of a ${\mathcal B}$-free Toeplitz subshift whose automorphism group has elements of arbitrarily large finite order, answering Question 11 of S. Ferenczi et al [Sarnak’s conjecture: what’s new. Ergodic Theory and Dynamical Systems in their Interactions with Arithmetics and Combinatorics (Lecture Notes in Mathematics, 2213). Eds. S. Ferenczi, J. Kułaga-Przymus and M. Lemańczyk. Springer, Cham, 2018, pp. 163–235].

Large-scale Ulva prolifera green tides have successively occurred for 16 years (2007–2022) in the Yellow Sea (YS), and the different life stages of U. prolifera play critical roles in regulating the occurrence and development of green tides. U. prolifera and microalgae have a similar niche in seawater, but their potential interactions are not yet clearly understood. In this study, we investigated the competition relationship between two microalgae and U. prolifera at five different development stages in controlled laboratory experiments. The results showed that one microalgae Alexandrium tamarense, can only inhibit U. prolifera gametes at the first settlement stage. Inversely, the germinated U. prolifera begin to show negative effects on microalgae in multiple ways at the subsequent four stages, and the growth inhibition rates among these stages ranged from 19 to 100%. The complex interactions may influence the formation of green tides. Meanwhile, the potential ecological consequences on phytoplankton, even the decreased occurrence of microalgal blooms in the YS need to be further evaluated.

The signature four elliptic theory of Ramanujan is provided with a counterpart to the Jacobian modular sine; this counterpart yields natural direct proofs of several hypergeometric identities recorded by Ramanujan, bypassing the signature four transfer principle of Berndt et al. [‘Ramanujan’s theories of elliptic functions to alternative bases’, Trans. Amer. Math. Soc. 347 (1995), 4163–4244].

The first book of Agamben's Homo Sacer series contains very few references to Heidegger. Even so, the pages that Agamben devotes to Heidegger in the third part of the book are far from a digression. They touch on a number of crucial topics that are vital to both Heidegger and Agamben, such as the relationship between philosophy and politics, the specific philosophical motivations behind Heidegger's political commitment, and life as a central philosophical theme. This article evaluates Agamben's interpretation of Heidegger in those pages by concentrating on two interrelated questions: (1) whether and to what extent Agamben's biopolitical reading of Heidegger is plausible and persuasive, and (2) how to judge the relationship between their respective accounts of life, which center around the two seminal concepts of “bare life” and “facticity.”

Transposition of the great arteries with left ventricle outflow tract obstruction in combination with situs inversus totalis and dextrocardia is a very rare anomaly and carries high morbidity and mortality. Only few cases have been reported with this anomaly. We describe a 21-day of infant girl with transposition of the great arteries and mirror image dextrocardia and pulmonary stenosis who underwent successful neonatal arterial switch operation and left ventricle outflow tract obstruction resection following PDA stent implantation

It is envisaged that future civil aero-engines will operate with ultra-high bypass ratios to reduce the specific fuel consumption. To achieve the expected benefits from the new engine cycles, these new powerplants may mount compact nacelles. For these new configurations the aerodynamic coupling between the powerplant and the airframe may increase. For this reason, it is required to quantify and further understand the effects of aircraft integration for compact aero-engine nacelles. This study provides an insight of the changes in flow aerodynamics as well as quantification of the most relevant performance metrics of the powerplant, airframe and the combined aircraft system across a range of different installation positions. Relative to a conventional architecture, there is an aerodynamic benefit in net vehicle force of about 1.2% for a compact powerplant when installed in forward positions. This is the same improvement that was identified when the aero-engine nacelles were in isolation. However, for close-coupled installation positions, the aerodynamic benefit in net vehicle force erodes to 0.44% due to the larger effects of aircraft integration on compact nacelles.

I develop a challenge to reductive views of knowing that $ \phi $ that appeal to what I call a gradable property. Such appeal allows for properties that are intrinsically very similar to the property of knowing that $ \phi $, but differ significantly in their normative significance. This violates the independently plausible claim Pautz (2017) labels the ‘small difference principle.’

Walcottaspis vanhornei (Walcott, 1914) is a large, late Cambrian trilobite with a unique pygidial morphology known only from a narrow outcrop belt of the St. Lawrence Formation in the Upper Mississippi Valley. Found in carbonate-rich layers within heterolithic facies that represent the toesets of a prograding shoreface, it is restricted to a single or small number of parasequences. Only four specimens of any of its sclerites have been illustrated previously. Here holaspid examples of all its biomineralized sclerites are described and illustrated, along with a morphometric analysis of cranidial landmarks and landmarks plus semilandmarks for the pygidium. Ontogenetic allometry accounts for 29% of the variance among holaspid cranidia and includes a relative shortening and narrowing of the palpebral lobe and a reduction in the relative length and width of the frontal area. Notable pygidial phenotypic variation occurs in the extent of the postaxial region and in the proportion of the structure occupied by the axis. Phylogenetic analysis suggests that W. vanhornei is sister taxon to Dikelocephalus minnesotensis Owen, 1852, which also occurs in the St. Lawrence Formation and has a broadly similar cephalon but distinctive trunk. The holaspid pygidium of W. vanhornei is uniquely characterized by the interpleural furrows of the first two segments becoming abruptly obsolete on approaching the axial furrow. Some pygidia show narrow, shallow, flat-bottomed grooves etched into the internal sides of the dorsal surface or doublure that apparently represent infestation of the live trilobite.

It is widely thought that chance should be understood in reductionist terms: claims about chance should be understood as claims that certain patterns of events are instantiated. There are many possible reductionist theories of chance, differing as to which possible pattern of events they take to be chance-making. It is also widely taken to be a norm of rationality that credence should defer to chance: special cases aside, rationality requires that one’s credence function, when conditionalized on the chance-making facts, should coincide with the objective chance function. It is a shortcoming of a theory of chance if it implies that this norm of rationality is unsatisfiable. The primary goal of this paper is to show, on the basis of considerations concerning computability and inductive learning, that this shortcoming is more common than one would have hoped.

New specimens of Cyclocystoides scammaphoris Smith and Paul, 1982, are here reported from the Upper Ordovician Platteville Formation of northern Illinois, Plattin and Decorah groups of east-central Missouri, and Lebanon Limestone of central Tennessee. These fossils reveal skeletal details that provide insight into the anatomy of cyclocystoids. Of particular significance is a network of channels that likely originate near the center of the central disk and extend along the oral side of the radial plates, bifurcating distally two or three times before entering the radial facets on the proximal surface of each marginal ossicle. From here, the network enters a series of facet canals that extend upward through each marginal ossicle, exiting in a linear row of pores. The canals are very similar in size and distribution to the nerve canals in living echinoderms. The axes of the canals, which number up to 500 in some specimens, and those of the radial ducts project proximally away from the oral surface at an elevation angle of about 25°, apparently forming a network that could have converged within the upper part of the body cavity. This origin and function are made clear by the connection between the channel on each radial plate and the radial facet canal pores within each marginal ossicle.

Student involvement in faculty research is on the rise because it serves at least three sets of interests: (1) students’ desire to build their résumés and develop close relationships with faculty members; (2) faculty members’ hope of getting research support from bright, attentive assistants; and (3) universities’ wish to publicize these opportunities to incoming student and faculty cohorts. At times, faculty members may come to see their undergraduate researchers as a source of inexpensive but high-quality labor, forgetting that they are students who are at the university to learn critical skills. In this article, I make the case for a student-centered approach to the undergraduate research experience (URE), which combines a traditional apprenticeship with a curriculum in the “what,” “why,” and “how” of research and expands the program over multiple semesters, supporting a team of student apprentices. I argue that this approach meets more of students’ goals while also supporting faculty and university interests. I describe the multi-semester URE that I have developed and provide tools to faculty members who want to adapt this program to their home institution.

The subject of prolonged, complicated and traumatic grief has become more topical as a consequence of the Covid-19 pandemic. CBT practitioners have been asked to provide effective therapeutic responses for clients with enduring distressing grief reactions. These enduring grief conditions have now been categorised as Prolonged Grief Disorder in the two main mental health classification systems: in the ICD -11 in November 2020 and as a revision to the DSM-5 in 2021. In this paper we draw on our research and clinical experience in applying cognitive therapy for PTSD (CT-PTSD) to traumatic bereavement to derive lessons for the treatment of prolonged grief. During the pandemic the authors of this paper delivered several workshops on prolonged grief disorder (PGD) during which clinicians raised several thought-provoking questions; how do we differentiate between normal and abnormal or pathological grief; how do we categorise pathological grief; how effective are existing therapies and is there a role for CBT; and how do our experiences with Cognitive Therapy for PTSD help with conceptualisation and treatment of PGD. The purpose of this paper is to answer these important questions and in so doing, consider the historical and theoretical concepts relating to complex and traumatic grief, factors that differentiate normal grief from abnormal grief, maintenance factors for PGD and implications for CBT treatments.

Ireland is often seen as an outlier within the western world in terms of demographic behavior. As a society it has also been noted for its religious fervor, including religious division, at least until fairly recently. Might there be connections historically between these two spheres? One intriguing area of enquiry relates to possible links between religious denomination and child mortality. We explore this possibility using individual-level data from the household schedules of the Irish Census of 1911. The study area is Belfast, Ireland’s leading industrial city, which allows for a wide range of occupational and social class differences. Combining regression techniques and the mortality index proposed by Preston and Haines (1991), we seek to tease out the relationship between child mortality and religious affiliation while controlling for a range of other explanatory variables. We show that religious identity is clearly associated with different infant and child mortality outcomes. Of the three major religious denominations, Catholics suffered the most from high infant mortality, Church of Ireland (Anglican) families were only a little better off, while the largest Protestant denomination, the Presbyterians, had the best infant mortality outcomes. These differences were related, in the main, to the varying socioeconomic composition of the three major religious denominations but religious affiliation also mattered in its own right.

2023 marks the centenary of the Treaty of Lausanne, which ended the state of war between Turkey and the western allies, in particular Greece, and reordered the Near East, settling frontiers and providing for the protection of minorities. This essay reviews the historiography of the period 1915-23 through Greek and British sources in printed books and papers, covering the Greek irredentist claim to western Asia Minor, the Paris peace conference, the occupation of Smyrna, the Greek war against Mustapha Kemal's Turkish nationalists, the collapse of the Greek army, the Lausanne treaty, and the convention on the exchange of Greek and Turkish populations agreed at Lausanne in 1923.

This article draws attention to the provincial city of Allahabad at the turn of the century as the site of a prolific and multilingual print culture. While publishing trends in this city were shaped by the intertwined histories of political culture and cultural politics, specific journals responded to these forces in ways that remain unexamined. Taking the Indian Press—established in 1884 and arguably the city’s most important multilingual publishing house—and four prominent journals that it produced (Saraswatī, Prabāsī, The Modern Review, and Adīb) as case study, I analyse the entanglements between print culture and debates on the contentious issues of languages and identities in a divided public sphere. Based on an extensive analysis of several decades of publishing trends for Hindi, Urdu, Bengali, and English, I argue that the continued thriving of many languages, or multilingualism, cannot be read simply as evidence for the proliferation of syncretism in the early decades of the twentieth century. Through a detailed reading of this complex field of cultural production, I show that while multilingual publishing thrived, cultural discourse led by middle-class and elite intellectuals was increasingly becoming homogeneous and insular, pushing a milieu of multilingual readers and publishers towards a narrow nationalist and majoritarian ideal. Thus, upon close analysis, multilingualism as a cultural value in the era of colonial modernity mirrored the fractures within the public sphere.