This article explores creative processes in the many settings of the prosula BENEDICAMUS in laude ihesu, transmitted in a large number of European manuscripts during a period of at least three hundred years. The fourteen different polyphonic elaborations reveal a desire for multi-voiced performance shared across the whole period and geographical area under discussion. Moreover, while many of the compositional techniques are similarly widespread, the individual settings remain insistently discrete, suggesting that it was more common for a community to produce its own version of the chant than to absorb another community’s practices. This study includes a list of all known sources with polyphonic inscriptions of the prosula, highlighting the hitherto unrecognized prominence of BENEDICAMUS in laude ihesu in musical and liturgical traditions of the fourteenth to seventeenth centuries.

Let $\Omega _n$ be the ring of polynomial-valued holomorphic differential forms on complex n-space, referred to in physics as the superspace ring of rank n. The symmetric group ${\mathfrak {S}}_n$ acts diagonally on $\Omega _n$ by permuting commuting and anticommuting generators simultaneously. We let $SI_n \subseteq \Omega _n$ be the ideal generated by ${\mathfrak {S}}_n$-invariants with vanishing constant term and study the quotient $SR_n = \Omega _n / SI_n$ of superspace by this ideal. We calculate the doubly-graded Hilbert series of $SR_n$ and prove an ‘operator theorem’, which characterizes the harmonic space $SH_n \subseteq \Omega _n$ attached to $SR_n$ in terms of the Vandermonde determinant and certain differential operators. Our methods employ commutative algebra results that were used in the study of Hessenberg varieties. Our results prove conjectures of N. Bergeron, Colmenarejo, Li, Machacek, Sulzgruber, Swanson, Wallach and Zabrocki.

We investigated syntactic priming in German children to explore crosslinguistic evidence for implicit learning accounts of language production and acquisition. Adult descriptions confirmed that German speakers (N=27) preferred to spontaneously produce active versus passive transitive and DO versus PO dative forms. We tested whether German-speaking children (N=29, Mage=5.3, 15 girls/14 boys) could be primed to produce these dispreferred forms and whether such priming effects would persist across a target phase. Children first heard a block of priming sentences and then described a block of target pictures. They demonstrated significant priming effects for passive and PO dative structures, and these priming effects did not differ between the first and second halves of the block of target trials. These patterns of German child language production are consistent with implicit learning accounts of syntactic priming.

We investigated the influence of availability as well as type of organic substrate on the growth of the cyanolichen Peltigera membranacea. A total of 145 lichen lobes were grown in a plant growth chamber for 28 days. Of these, 73 were kept in permanent darkness and another 72 were exposed to a diurnal light-dark cycle. A third of the lobes from both treatments were grown on pulverized leaf litter, the second third on pulverized bryophytes, and the remainder were grown without an organic substrate to serve as a control group. Growth was quantified via relative growth rate, relative thallus area growth rate, and changes in specific thallus mass. The lobes kept in a diurnal light-dark cycle showed higher growth rates than those kept in darkness, as is expected for an organism that obtains its carbon from its photoautotrophic symbiosis partner. Furthermore, growth rates were higher in lobes growing on organic substrates. The results show that the availability of an organic substrate positively affects lichen growth in a growth cabinet. Leaf litter led to a higher biomass gain in lichen lobes, whereas area gain was unrelated to substrate type.

Women are globally underrepresented as political leaders; as of January 2023, only 17 countries had a woman head of government. Included in this small group is Samoa, which elected Fiame Naomi Mata’afa as its first woman prime minister in 2021 after a fiercely contested election and subsequent protracted legal disputes centered around interpretations of Samoa’s 10% gender quota. Drawing on data from the Pacific Attitudes Survey, the first large-scale, nationally representative popular political attitudes survey conducted in the Pacific region, this article examines how the political environment in Samoa shapes opportunities for women’s political participation and leadership. Using the theoretical framework of cohabitation, it finds that although there is an enabling environment for women’s participation and leadership in formal politics, women’s access to decision-making spaces more broadly is still constrained by norms of traditional leadership. This speaks to traditional and nontraditional political norms and practices that coexist, at times uneasily, alongside one another.

Hemoglycin, a space polymer of glycine and iron, has been identified in the carbonaceous chondritic meteorites Allende, Acfer 086, Kaba, Sutter's Mill and Orgueil. Its core form has a mass of 1494 Da and is basically an antiparallel pair of polyglycine strands linked at each end by an iron atom. The polymer forms two- and three- dimensional lattices with an inter-vertex distance of 4.9 nm. Here the extraction technique for meteorites is applied to a 2.1 Gya fossil stromatolite to reveal the presence of hemoglycin by mass spectrometry. Intact ooids from a recent (3000 Ya) stromatolite exhibited the same visible hemoglycin fluorescence in response to x-rays as an intact crystal from the Orgueil meteorite. X-ray analysis confirmed the existence in ooids of an internal three-dimensional lattice of 4.9 nm inter-vertex spacing, matching the spacing of lattices in meteoritic crystals. FTIR measurements of acid-treated ooid and a Sutter's Mill meteoritic crystal both show the presence, via the splitting of the Amide I band, of an extended anti-parallel beta sheet structure. It seems probable that the copious in-fall of carbonaceous meteoritic material, from Archaean times onward, has left traces of hemoglycin in sedimentary carbonates and potentially has influenced ooid formation.

Although most people in sub-Saharan Africa are very religious, state support for religion (such as through policies legislating religious values and supporting religious institutions) is very low in the region. Why is this? This paper explores this phenomenon using data from Pew Research Centre and Religion and State Project. While population religiosity is ordinarily correlated with state support for religion elsewhere in the world, sub-Saharan Africa is indeed anomalous. Yet contrary to popular explanations, this is not explained by limited state capacity, weak democracies, religious and ethnic pluralism, or majority religion. Using case studies of Rwanda and Mozambique, the paper considers whether challenges to the moral authority of religious actors as leaders of “the nation” may help explain why state support for religion is so low in sub-Saharan Africa. Taken together, these findings challenge assumptions that high religiosity in sub-Saharan Africa is a threat to secular governance.

The question of whether extraterrestrials exist has driven both the search for extraterrestrial intelligence (SETI) and some attempts of messaging to extraterrestrial intelligence (METI). Nevertheless, no data-driven or theory-based behavioural policy has been suggested. Here we simulate a comprehensive set of human–extraterrestrial strategic interactions, modelled as two-by-two game-theoretic matrices. We examine a sample of possible outcomes by relying on the theory of subjective expected relative similarity (SERS), which takes into account both the expected payoffs and the extent of strategic similarity – the prospects of the opponent making identical choices. Simulation results suggest: focusing messaging efforts on signalling of complete strategic similarity, monitoring potential alien communications for similarity-indicating signals, and using risk-averse decision rules for policy planning and decision-making. The discussion puts forward three guidelines for METI initiatives and addresses the relevance of the findings to human conflict management.

Considered a landmark in feminist international politics, the Women, Peace and Security (WPS) agenda of the UN Security Council has been the object of many feminist explorations. Feminist legal scholars, however, have grappled with the ‘shadowy’ legality of the agenda, mostly analysing it as an ‘unsuccessful’ legal project: a partial or in progress legal norm, a defective legal form that attests (and furthers) the exile of inclusion of feminists in international law, or yet a formalistic discussion with lesser impact for feminist activists on the ground. Drawing from Avery Gordon’s considerations on taking shadows seriously in our production of knowledge, I propose, however, that reckoning with the shadows of the WPS’s legality enables a more comprehensive analysis of how the agenda has been a successful legal project in its own way. Offering a ‘shadow hauntology’ for the legal status of the WPS, I zoom in on the competing legality perceptions shared by relevant actors, the (gendered and colonially-continuous) shadows that have haunted those perceptions into formation, and how these competing visions have shaped the legality of the WPS as a shadow of its own. This study then offers an alternative way of studying legality both to feminist legal scholarship and studies on international legal sources more broadly. More concretely, it embraces the irresolvability of the legal status of a norm to take stock of the different legal projects and legality perceptions advanced by feminist actors and gender experts, in an effort to understand, in their own terms, the successes achieved.

Extracellular polymeric substances (EPS) are high molecular weight polymers that microorganisms secrete into their extracellular environment. EPS serves as the carrier of the structural integrity of microbial biofilms, determining the physicochemical properties and the functional complexity of biofilms. EPS creates an ideal environment for interfacial reactions and nutrient trapping around microbial cells, while also acting as a buffer zone against environmental stresses. EPS in soil can contribute to soil health through its own properties such as adhesion, hygroscopicity and complexing ability. Here, we first introduce the concept, components, properties and controlled factors of EPS in the soil environment, and outline current advances in extraction methods and characterization techniques for soil EPS. EPS form a dynamic biophysical-chemical interface between microbes and the soil matrix. We explore the role of EPS in the colonization and survival of microorganisms, aggregation and weathering of soil minerals, and cross-linking with soil organic matter. We then summarize the soil ecological functions of microbial EPS: 1) promoting aggregate formation and stabilization; 2) enhancing water retention and holding capacity; 3) mediating nutrient storage and trapping; and 4) regulating contaminant sequestration and transformation. Finally, we propose several future research interests for microbial EPS in soil, thereby calling for more attention and research on microbial EPS and its functions in soil ecosystems, and exploring their potential applications in the development of environment-friendly agriculture.