Fe-dominant cordierite, the mineral sekaninaite, is relatively rare in calc-alkaline volcanic rocks, with only a handful of recorded localities. The compositionally zoned phenocrysts in the Late Devonian Rubicon Rhyolite in central Victoria, Australia are the most Fe-rich known, with core compositions having Mg# of 10–30. Similar cordierite–sekaninaite (Crd–Skn) phenocrysts occur in: rhyolites and rhyodacites from San Vincenzo and Roccastrada in Tuscany; on Lipari Island in Italy; in the Nefza province in northern Tunisia; and in a newly discovered Devonian rhyolite at Arthurs Seat, Victoria. All show well-developed sector twinning in response to structural ordering during cooling. The Victorian sekaninaite crystals all show strong zonation from Fe-rich cores to rims richer in Mg, i.e. reverse zoning. In contrast, the Italian and Tunisian examples have relatively weak normal zoning. In the Roccastrada and Lipari rocks, a second type of Crd–Skn occurs as turbid fragments and as groundmass crystals, with the latter showing reverse zoning. Reverse zoning in the Rubicon and Arthurs Seat rhyolite phenocrysts and the Lipari groundmass crystals is attributed to the reheating of their host magmas due to interaction, such as mixing, with a higher-temperature magmas prior to eruption. The ranges of Crd–Skn compositions in all volcanic rocks bear no systematic relationship to the bulk compositions of their host rocks. Assuming that the whole-rock compositions approximate the original magmatic liquids, and an initial H2O content of 5 wt.% throughout, enabled a comparison to be made between the relative P–T conditions of most occurrences, apart from Lipari. Results suggest that the Rubicon Rhyolite had the lowest P–T conditions with Roccastrada next, and San Vincenzo the highest. It appears that sekaninaite might be stable in silicic volcanic magmas over a wide range of melt compositions, pressures and temperatures but is favoured for low-Mg# bulk compositions at low P and low T.

Haemonchosis is a fatal disease of livestock caused by Haemonchus contortus (HC) – a blood-sucking parasite of the abomasum. This parasite is quite prevalent in sheep, causing mortality and production losses. The suppressor of cytokine signalling-2 (SOCS2) gene plays a vital role in sheep’s immune response against gastrointestinal parasites. This study aimed to estimate the parasitic load of HC in three sheep breeds (Balkhi, Ghalji, and Michni) through faecal egg count and to identify SNPs in the SOCS2 gene associated with the susceptibility of sheep against HC. The results showed that the mean number of HC eggs per gram (EPG) was higher in the faecal samples of Ghalji (4022 ± 1162 EPG), followed by Michni (1988 ± 367 EPG), while the HC EPG was the lowest in Balkhi sheep (1535 ± 552 eggs/gm). Sequencing results showed polymorphisms in the SOCS2 gene between the low-infection and high-infection categories of the three sheep breeds. A total number of six genic variants were observed, of which three were SNPs, one was insertion, and two were deletions. Polymorphisms were observed in the intronic and 3′ UTR regions of the SOCS2 gene. A deletion (c.1083delGCA) in intron 1 and an insertion (c.3304insT) in intron 2 showed positive correlations (0.833 and 0.889, respectively) with the HC infection, while one SNP in the 3′ UTR region showed negative correlation (–0.654). This study provides a basis for selecting resistant sheep against HC infection based on the SOCS2 gene molecular markers.

Manganese (Mn) is a crucial trace element that actively participates in a diverse array of physiological processes. Mn is maintained at appropriate levels in the body by absorption and excretion by the body. Dysregulation of Mn homeostasis can lead to a variety of diseases, especially the accumulation of Mn in the brain, resulting in toxic side effects. We reviewed the metabolism and distribution of Mn at multiple levels, including organ, cellular and sub-cell levels. Mitochondria are the main sites of Mn metabolism and energy conversion in cells. Enhanced Mn superoxide dismutase activity reduces mitochondrial oxidative stress and inhibits cancer development. In addition, Mn enhances anti-cancer immune responses through the cGAS–STING pathway. We introduced various delivery vectors for Mn delivery to cancer sites for Mn supplementation and anti-cancer immunity. This review aims to provide new research perspectives for the application of Mn in the prevention and treatment of human diseases, especially by enhancing anti-cancer immune responses to inhibit cancer progression.

Gender-based violence (GBV) has become a prominent theme in feminist struggles across Africa (Medie 2019). A burgeoning literature has recently emerged as a result of debates about GBV in a variety of African settings, resulting in a multifaceted picture of the causes and consequences of GBV in the continent (Aroussi 2017; Ayiera 2010; Bennett 2010; Oku 2021). As laudable as this body of research is, certain lacunae are easily noticeable in respect to studying GBV in Portuguese-speaking countries, especially in smaller states such as Cape Verde and Guinea-Bissau. With a few exceptions (Henriques et al. 2015; Moura et al. 2009; Mourão 2009; Silva 2021, 2022), these countries are often neglected in feminist research in Africa, especially in English-speaking circles. There is even less attention paid to the particular political settings of Cape Verde and Guinea-Bissau and how they affect feminist agendas around GBV.

A partition is called a t-core if none of its hook lengths is a multiple of t. Let $a_t(n)$ denote the number of t-core partitions of n. Garvan, Kim and Stanton proved that for any $n\geq1$ and $m\geq1$, $a_t\big(t^mn-(t^2-1)/24\big)\equiv0\pmod{t^m}$, where $t\in\{5,7,11\}$. Let $A_{t,k}(n)$ denote the number of partition k-tuples of n with t-cores. Several scholars have been subsequently investigated congruence properties modulo high powers of 5 for $A_{5,k}(n)$ with $k\in\{2,3,4\}$. In this paper, by utilizing a recurrence related to the modular equation of fifth order, we establish dozens of congruence families modulo high powers of 5 satisfied by $A_{5,k}(n)$, where $4\leq k\leq25$. Moreover, we deduce an infinite family of internal congruences modulo high powers of 5 for $A_{5,4}(n)$. In particular, we generalize greatly a recent result on a congruence family modulo high powers of 5 enjoyed by $A_{5,4}(n)$, which was proved by Saikia, Sarma and Talukdar (Indian J. Pure Appl. Math., 2024). Finally, we conjecture that there exists a similar phenomenon for $A_{5,k}(n)$ with $k\geq26$.

The rise of anti-immigrant parties has reshaped global politics, forcing mainstream parties to recalibrate their strategies. This study examines how Turkish political parties responded to the emergence of the Victory Party (Zafer Partisi) in 2021, which placed immigration at the center of political debate. Drawing on 1,089 parliamentary group speeches (2011–2023) and elite interviews with key party figures, we identified three key factors shaping party responses: voter overlap with radical-right parties; reputational risks associated with shifting policy positions; and access to political power. Our findings revealed five strategies: issue avoidance; amplification; cooptation; repositioning; and reinforcement. Unlike conventional models that emphasize voter competition, we highlight the role of political power in shaping party strategies, particularly in competitive authoritarian settings. This study advances the understanding of how mainstream parties navigate niche party pressures, offering a broader perspective beyond Eurocentric and electoralist frameworks.

The Civil War pension system was the most comprehensive social policy in the late nineteenth-century United States. Between 1880 and 1910, approximately a quarter of the federal government’s expenditure was devoted to this enormous system of military benefits. Scholars have typically charted the development of the pension system through a series of legislative watersheds, detailing its gradual expansion and liberalization. Yet, as this article shows, this was not the only path that the pension system could have followed. By investigating Commissioner of Pensions John Bentley’s five-year administration of the Pension Bureau during the late 1870s, this article explores a story of suppressed – rather than successful – state-building. While Bentley attempted to administer the pension system according to the shibboleths of the contemporary civil service reform movement, the nation’s veterans and their allies pursued a pension system predicated upon an incipient theory of veterans’ entitlements and rights. The Civil War pension system, this article thus reminds us, was not simply the sign of a precocious nineteenth-century state, but the product of a specific type of state, one that reflected a preference for distributive policies and decentralized administration rather than administrative centralization and broad grants of bureaucratic discretion.