The collapse of the three empires governing divided Poland after the First World War left thousands of imperial civil servants out of work and forced to recalibrate their political affiliations. Those who did not flee with retreating armies faced a rigorous filtration process that screened them for loyalty, stressing their commitment to ‘Polishness’. This article argues that despite what has been characterised as a nationalising state, the early years of the Polish Second Republic witnessed a negotiated filtration process, in which functionaries demonstrated their commitment to Poland by appealing to a combination of non-national characteristics, including ties to locale, to professional acumen, and to the civil service in general. Officials who were not ethnically Polish thus succeeded in retaining their positions in the government hierarchy. This surprising outcome of post-imperial vetting suggests that lingering elements of respect for national difference continued to resonate in postwar Poland and that pressure for an ethnically pure nation-state was far from universal.

We study a version of the stochastic control problem of minimizing the sum of running and controlling costs, where control opportunities are restricted to independent Poisson arrival times. Under a general setting driven by a general Lévy process, we show the optimality of a periodic barrier strategy, which moves the process upward to the barrier whenever it is observed to be below it. The convergence of the optimal solutions to those in the continuous-observation case is also shown.

The nutritional environment during fetal and early postnatal life has a long-term impact on growth, development, and metabolic health of the offspring, a process termed “nutritional programming.” Rodent models studying programming effects of nutritional interventions use either purified or grain-based rodent diets as background diets. However, the impact of these diets on phenotypic outcomes in these models has not been comprehensively investigated. We used a previously validated (C57BL/6J) mouse model to investigate the effects of infant milk formula (IMF) interventions on nutritional programming. Specifically, we investigated the effects of maternal diet type (i.e., grain-based vs purified) during early lactation and prior to the intervention on offspring growth, metabolic phenotype, and gut microbiota profile. Maternal exposure to purified diet led to an increased post-weaning growth velocity in the offspring and reduced adult diet-induced obesity. Further, maternal exposure to purified diet reduced the offspring gut microbiota diversity and modified its composition post-weaning. These data not only reinforce the notion that maternal nutrition significantly influences the programming of offspring vulnerability to an obesogenic diet in adulthood but emphasizes the importance of careful selection of standard background diet type when designing any preclinical study with (early life) nutritional interventions.

Is the era of the reference book coming to an end? Publishers evidently don't think so. Not only have we seen an explosion in the number of handbooks, companions and dictionaries produced by the mainstream academic press in recent years, but even older, well-established ‘brands’ continue to flourish. Here is the fourth edition of Oxford University Press's ‘flagship’ Oxford dictionary of the Christian Church (ODCC), considerably expanded and revised from the third edition. Yet although libraries continue to buy works such as this, and academic colleagues to use them and refer to them, students often – if my experience is anything to go by – prefer the easier, cheaper, faster route of online sourcing, and particularly Wikipedia. A review of this edition of the ODCC has to reckon, then, not only with evaluating the content of the work itself, but, more sharply than perhaps was necessary before, with the questions of who exactly is likely to use it, and how it stands up in comparison with the competition.

Let $2\leq p<\infty $ and X be a complex infinite-dimensional Banach space. It is proved that if X is p-uniformly PL-convex, then there is no nontrivial bounded Volterra operator from the weak Hardy space $\mathscr {H}^{\text {weak}}_p(X)$ to the Hardy space $\mathscr {H}^+_p(X)$ of vector-valued Dirichlet series. To obtain this, a Littlewood–Paley inequality for Dirichlet series is established.

This paper studies the labor market impact of the Rosenwald Schools Initiative, a school construction program in the early twentieth-century South. Using a new sample linking Social Security and census records, we find that exposure to Rosenwald schools raised Black women’s labor force participation and occupational standing in 1940; however, we find little evidence that Black men’s occupational standing significantly improved. Blacks made no discernible gains in jobs where they were underrepresented, while the gains they achieved were concentrated in jobs where they were commonly found. This suggests that the scope for Black occupational advancement was limited around 1940.

We give sufficient conditions for the essential spectrum of the Hermitian square of a class of Hankel operators on the Bergman space of the polydisc to contain intervals. We also compute the spectrum in case the symbol is a monomial.

There is a lack of longitudinal data on the relationship between upward social comparison on social network sites (SNSs) and depression and its underlying mechanisms. Therefore, this study aimed to examine the relationship between upward social comparison on social network sites and depression and analyze the mediating effects of self-concept clarity and self-esteem in this relationship. We employed a two-wave longitudinal design among 1179 Chinese middle school students. The results indicated that : upward social comparison on SNSs predicted middle school students’ depression; Self-concept clarity and self-esteem sequentially mediated the relationship between upward social comparison on SNSs and middle school students’ subsequent depression. These results suggested that three types of interventions could be effectively used to decrease the risk of depression among middle school students.

In the present discussion, I will focus on the creation of baby warriors in Mesoamerica in a twofold manner: as human beings and as blade stones. The emphasis will be on central Mexico, complemented with essential data from other parts of Postclassic Mesoamerica. By juxtaposing information from historical sources in a novel way, this investigation seeks to offer new insights that should reinforce the idea that warriors captured on the battlefield were considered to be children. Although this idea has been suggested before, this article aims to contribute new historical evidence that not only confirms this notion but also widens our understanding of the creation of nonbiological offspring. Making kin out of Others aims to satisfy a cosmological need to incorporate vital energy and elements for individual and collective personhood from outside of the community. The second idea of this investigation focuses on a related productive variant of this gestational dynamic, suggesting that by stone flaking and chipping, children (of stone) were fabricated. Some of them were indeed “child blade stones” who personified warriors and fed themselves with sacrificial victims, securing sustenance for the hungry gods. I argue that the birth of these warriors should be integrated into a major mythological theme—namely, the Child Hero and the Old Adoptive Mother.

We study scaled topological entropy, scaled measure entropy, and scaled local entropy in the context of amenable group actions. In particular, a variational principle is established.

Hybrid procedure of hypoplastic left heart syndrome, comprising ductus arteriosus stenting and bilateral pulmonary artery banding, is a good surgical option for initial palliative procedure for high-risk patients for Norwood procedure. However, ductal stenting may cause retrograde aortic blood flow obstruction. Furthermore, complete removal of stent while performing the Norwood procedure make the operation more difficult. We report a case that overcame these problems using a novel surgical technique.