I argue that navigating Lingala represented a central part of many Zairians’ experiences of Mobutu’s regime (1965–97), causing linguistic change, shaping their relationships to state power, and influencing their experiences of the regime’s everyday authoritarianism. Mobutu’s regime imposed Lingala through informal language practices including political rallies, songs, and slogans, interactions with state agents, and Mobutu’s own practice of addressing audiences nation-wide in Lingala. Zairians navigated the regime’s imposition of Lingala in different, and often divergent ways along a spectrum from rejection and opposition to acquisition and embrace. Where some Zairians, especially Kiswahili speakers in the East, rejected Lingala and criticized the language — critiquing Mobutu’s authoritarian rule in the process — other Zairians, particularly people in the Kikongo and Ciluba national language zones adapted to Mobutu’s new linguistic dispensation by learning to speak and understand Lingala, improving their relationship with the state and facilitating life under Mobutu’s rule.

Building upon the pioneering work of Merle, Raphaël, Rodnianski and Szeftel [67, 68, 69], we construct exact, smooth self-similar imploding solutions to the 3D isentropic compressible Euler equations for ideal gases for all adiabatic exponents $\gamma>1$. For the particular case $\gamma =\frac 75$ (corresponding to a diatomic gas – for example, oxygen, hydrogen, nitrogen), akin to the result [68], we show the existence of a sequence of smooth, self-similar imploding solutions. In addition, we provide simplified proofs of linear stability [67] and nonlinear stability [69], which allow us to construct asymptotically self-similar imploding solutions to the compressible Navier-Stokes equations with density independent viscosity for the case $\gamma =\frac 75$. Moreover, unlike [69], the solutions constructed have density bounded away from zero and converge to a constant at infinity, representing the first example of singularity formation in such a setting.

Interregional and global economic connections continued to grow in the eighteenth century, but we know less about consuls’ impact on commodity chains that were stretched thin across large distances. Using a microhistorical approach, we look at the activities of a Swedish consul in Cadiz, Hans Jacob Gahn, who supplied large amounts of copper sheets to the Spanish navy. It was Gahn’s position as an official representative, not merely his networks in Spain and Sweden, that was crucial for winning and executing the contract: his consular post enabled him to leverage his social, political, and financial capital to drastically alter trade flows for the years he held the contract. As contractors, consuls had a significant economic function for both their sending and receiving states.

Simulated data from the Coupled Model Intercomparison Project Phase 6 (CMIP6) has been very important for climate science research, as they can provide wide spatio-temporal coverage to address data deficiencies in both present and future scenarios. However, these physics-based models require a huge amount of high-performance computing (HPC) resources. As an alternative approach, researchers are exploring if such simulated data can be generated by Generative Machine Learning models. In this work, we develop a model based on Pix2Pix conditional Generative Adversarial Network (cGAN), which can generate high-resolution spatial maps of global sea surface temperature (SST) using comparatively less computing power and time. We have shown that the maps generated by these models have similar statistical characteristics as the CMIP6 model simulations. Notably, we trained and validated our cGAN model on completely distinct time periods across all ensemble members of the EC-Earth3-CC and CMCC-CM2-SR5 CMIP6 models, demonstrating satisfactory results and confirming the generalizability of our proposed model.

Hydraulic fracturing generates large volumes of flowback and produced water, composed of complex mixtures of organic and inorganic constituents. The solids associated with these fluids are Fe-rich and can contain toxic organics, heavy metals and naturally occurring radioactive materials (NORMs). Despite this, only a few studies have analysed their composition and there is a lack of understanding about their interactions with microbial communities and their long-term fate in the environment. In this study, we analysed the solids associated with flowback water derived from a hydraulically fractured well in the Bowland Shale, UK. We also investigated the microbial reduction of these Fe(III)-rich materials under anaerobic conditions using anthraquinone-2.6-disulfonate (AQDS) as an electron shuttle and identified the resulting bioreduced mineral phases. XRD characterization indicated that the solids contained akaganeite (β-FeOOH, Cl) and Ba-bearing celestine (SrSO4). These Fe(III)-containing solids served as an electron acceptor for Shewanella frigidimarina and a flowback-derived Fe(III)-reducing enrichment culture. The bioreduced Fe(II)-bearing mineral phase was identified as ankerite [Ca(Fe,Mg,Mn)(CO3)2]; however, the presence of amorphous mineral phases is not ruled out. Microbial community composition was analysed using 16S rRNA gene sequencing. Amplicon sequence variants (ASVs) most closely related to Chromohalobacter, Caminicella and putative Fe(III)-reducing genera were dominant across treatments. Our findings highlight the potential of these Fe(III)-bearing sludges to be harnessed for the development of wastewater treatment strategies; for example, coupling the oxidation of toxic organics with Fe(III) reduction through either the introduction of microbial inocula or biostimulation of the native microbial communities. Furthermore, microbial processing can also be optimized to transform the Fe(III) sludges into denser materials, which are easier to handle and can immobilize toxic metals, thereby reducing the toxicity of this waste.

Geophytes are hardy, resilient plants that are tolerant of cold temperatures and drought and are well documented as a reliable food source for hunter-gatherers worldwide. Human settlement patterns and foraging behaviors have long been associated with the use of nutrient-dense geophytes rich in carbohydrates, fiber, vitamins, and minerals. Indigenous communities in the northern Great Basin developed cultural practices centered around gathering, preparing, and consuming important geophytic plants. These practices became deeply embedded in their cultural identity, forming rituals, stories, and traditions that persist today. Although there is strong ethnographic precedent for the significance of geophytes, finding evidence of their use in the archaeological record remains a challenge. This study analyzed archaeological starch residue extracted from bedrock metates in the uplands of Warner Valley, Oregon. Systematic studies of starch granules collected from extant plant communities growing near archaeological sites were applied to the identification of archaeological granules. Starch granules from geophytes, specifically Lomatium spp. (biscuitroot), were identified on metate surfaces at all sites, thus providing direct evidence for the collection and processing of geophyte vegetables. Evidence of geophyte plant processing on bedrock metates contributes to archaeological theories about subsistence strategies, food-processing technologies, social organization, and cultural practices in past human societies.

The presence of new religious movements (NRMs) is often fraught with tensions and confrontations. Depicted as foreign elements and “cults” they face opposition demanding to restrict their activities. NRMs in Israel, despite small numbers, raised concerns and objections, attributed among other things to the dominance and power of Orthodox religion. Gradually, however NRMs managed to establish themselves in Israel and to successfully deflect the opposition to their presence. In this work, based on interviews and media reports, we explore two strategies that enabled the movements in Israel to minimize rejection and opposition to their presence. The first, based on a republican concept of citizenship, included the adoption of Zionist ideology and taking part in settlement ethos and military service. The second, based on neoliberal concept of citizenship, fits well with more current trends in Israel, offers paths to economic advancement and social mobilization through education and ethos of success.

Written accounts suggest there were major changes in agricultural practices in Anatolia as the region switched between Roman, Byzantine, Arab and Turkic control, yet archaeological evidence of these changes is offered only on a site-by-site basis. This article presents the first synthesis of archaeobotanical, palynological and zooarchaeological evidence for changes in plant and animal husbandry in Anatolia through the first and second millennia AD. Available data indicate a minimal role of climate change in agricultural shifts but offer evidence for substantial changes towards short-term-return agricultural strategies in response to declining personal security, changing patterns of military provisioning and distinct taxation regimes.

In his operas, Mozart followed contemporary practice by using the clarinet to set the mood for amorous scenes, but he adapted this into a new kind of topic that dramatises his characters’ changing self-knowledge and growing enlightenment. In so doing, he emphasised both their recognition of their true feelings and the political and moral implications for their subsequent actions. This is exemplified in La clemenza di Tito, in which a clarinet (or basset horn) serves as an important soloistic voice whose dialogue with the protagonist illuminates their inner struggles with conflicting emotional, social and political realities as they move towards new understanding.

This article notes the appearance of the same sermons on Romans viii.15–16 in the nineteenth-century editions of both James Ussher and Richard Sibbes. It explores the sources on which these editions rest and the publication history of The saints cordials, the contents of which were too uncritically accepted by Sibbes's nineteenth-century editor, A. B. Grosart. Manuscript evidence is employed to argue that three items in Grosart's edition of Sibbes should be attributed to Ussher, and the provenance of a further eleven is questioned. The article concludes with a survey of the appearance of the disputed material in modern Sibbes scholarship.

Foraging traces associated with the web-footed avian footprint ichnotaxon Presbyornithiformipes feduccii are described. Four new ichnospecies in three new ichnogenera are established to identify and describe the traces that resulted from foraging behaviors. All four ichnotaxa are, in places, overprinted by P. feduccii footprints and occur either laterally to, or sinuously woven between, P. feduccii trackways and therefore were clearly emplaced by the P. feduccii tracemaker.

Erevnoichnus blochi new ichnogenus new ichnospecies is established for a series of pits, joined by a marginal groove, that are associated with web-footed bird trackways. This ichnotaxon is interpreted to record regular probing/gaping as a waterbird swept its head from side to side searching for food. Erevnoichnus strimmena n. igen. new ichnospecies is established for en-echelon, gently arcuate grooves produced through forward probing by a waterbird searching for food. Ravdosichnus guntheri new ichnogenus new ichnospecies is established for simple grooves with u-shaped profiles produced when a waterbird dragged its bill backwards through the sediment. Aptosichnus diatarachi new ichnogenus new ichnospecies is established for a broad, shallow groove/trough characterized by sinuous margins and a complex, irregular fill. It is interpreted to record thorough bill stirring in an area with common prey.

All four ichnotaxa named herein are interpreted to record tactile feeding behavior by a marginal lacustrine waterbird searching for prey. Their association with Presbyornithiformipes feduccii suggests that the purported tracemaker, Presbyornis pervetus, did not forage solely through filter-feeding but was also capable of tactile foraging for larger prey.

UUID: www.zoobank.org/42c5d24b-6e9a-45da-9a48-78f8f040311c

This study tests the hypothesis that alternation patterns with strong lexical support are more robust than those with no, or weak, lexical support. Focusing on three alternation patterns in Korean with varying productivity and generality, we measured lexical support in two ways. First, we conducted an acceptability-rating experiment investigating Korean speakers’ judgements on non-words with and without violations of the phonotactic constraints motivating the alternations. In addition, we performed a simulation of learning a maximum entropy (MaxEnt) Harmonic Grammar from a dictionary corpus. The results of the experiment and computational modelling confirmed the hypothesis by showing that if an alternation is robust, its associated phonotactic constraint is learned with a high weight from the MaxEnt simulation, and it affects the participants’ well-formedness ratings for non-words. Consequently, the results of this research support the claim of a tight link between alternations and phonotactics.