How does the party-state exercise leadership over universities and manage the individuals embedded in the university system without restraining their capacity for excellence and innovation? I argue that the presidential responsibility system has resolved a fundamental agency problem in Chinese universities. The system is supported by a set of mechanisms designed to enforce loyalty to the leadership of the Chinese Communist Party. It can easily adapt to political changes and thus maintain authoritarian rule without compromising the overarching agenda of research excellence.

Indigenous identity politics in South America increasingly mobilize language as a resource for political visibility, cultural continuity, and resistance to homogenizing state agendas. While many Indigenous movements pursue linguistic standardization, the Murui-Muina people of the Colombian Amazon advance an inverse project: they emphasize internal differentiation, maintaining four ethnolinguistic groups (Murui, Mɨka, Mɨnɨka, Nɨpode). Drawing on long-term ethnographic and linguistic fieldwork, this article examines how Murui-Muina speakers construct and sustain these distinctions through ideologically charged lexical contrasts (‘flag words’) that function as shibboleths of subgroup identity. Situated within histories of violence, Indigenous language politics, and Northwest Amazonian multilingual ecologies, the analysis shows how minimal linguistic differences become imbued with cosmological significance, social meaning, and political value. The Murui-Muina case challenges structuralist definitions of ‘language’, demonstrating that what ultimately counts as a language depends on local approaches to language itself, offering a broader insight into how linguistic diversity is lived, valued, and reproduced. (Indigenous identity, linguistic diversity, language standardization, Murui-Muina, Northwest Amazonia, Colombia)

The Middle Persian Nāmagīhā ī Manuščihr “Epistles of Manuščihr”, the Zoroastrian high priest of Pārs and Kermān, written in 881 ce, are an important testimony of an inner-Zoroastrian dispute on orthopraxy in early Islamic Iran. They reflect Manuščihr’s efforts to preserve the extensive purification ritual Baršnūm against being substituted with a simplified ritual by his brother, the teacher-priest (Hērbed) Zādspram. Manuščihr wrote three letters to make his position clear. His second letter, addressed to Zādspram, is interesting not only for its theological debate but also for the personal relationship it reveals between two priest-brothers. Manuščihr argues on an elaborate scholarly level by quoting from the religious authoritative texts, and expresses his brotherly love and responsibility for leading his younger brother back to the correct path. This article focuses on his theological argumentation but also on the debate, how the family ties may have affected it and how he used linguistic expressions and style in this context.

The rise of internet celebrity cities has become one of the most striking phenomena in China since 2021. How do local governments respond and harness this trend to advance their development goals? This study focuses on local experimentation in creating such cities, drawing on the case of the Village Football Super League (Cun chao 村超) in Guizhou. We identify policy entrepreneurship as a key driver of local experimentation and highlight three core strategies for creating internet celebrity cities: crafting local symbols, co-producing viral content and mitigating public opinion risk. Further analysis shows that this experimentation, by attracting massive public attention, simultaneously promotes economic growth, strengthens social cohesion, reinforces state narratives and projects China’s national image onto the global stage. Overall, the findings suggest an emerging model in which public attention becomes a core resource for local development and governance in China’s digital era.

We investigate a novel first-passage percolation model, referred to as the Brochette first-passage percolation model, where the passage times associated with edges lying on the same line are equal. First, we establish a point-to-point convergence theorem, identifying the time constant. In particular, we explore the case where the time constant vanishes and demonstrate the existence of a wide range of possible behaviours. Next, we prove a shape theorem, showing that the limiting shape is the $L^1$ diamond. Finally, we extend the analysis by proving a point-to-point convergence theorem in the setting where passage times are allowed to be infinite.

By using satellite images, this study confirms 350 km of ancient roads, comprising 634 wide and 321 narrow roads, in southwestern Amazonia’s earthwork-rich landscape. The roads were straight, mostly under 500 m long, but with some extending several kilometers. They occurred most prevalently in areas of dense earthwork. Nested earthworks were more road-rich than simple ones, and roads were more common in structures with quadrilateral rather than roundish shapes. Geoglyphs typically featured wide ceremonial roads with start widths ranging from 15 to 40 m, sometimes wider, and gradual narrowing toward their distal ends. Mound settlements had narrow, short roads pointing in various directions, which may have been for everyday travel. They also presented narrow but long roads leading to distant destinations, occasionally spanning many earthworks. When the endpoint was observable, 39.7% of roads led to a riverine environment indicating access, 10.6% connected to other earthworks reflecting integration, and 49.7% faded into currently open terrain. Many roads starting from geoglyphs aligned with the cardinal directions suggesting a possible awareness of astronomical alignments in the construction of the ditched ceremonial enclosures. This study confirms that ancient roads provide key insights into past civilizations and are essential to the region’s archaeological heritage.

This paper investigates the frequency of commentary pragmatic markers in Ghanaian and Ugandan Englishes, and their use across different text categories, using the Ghanaian and Ugandan components of the International Corpus of English. These markers, which are grouped into assessment, emphasis, evidential, hearsay and manner-of-speaking markers, are explored from a variational pragmatic approach. The results show that Ghanaian English users employ an overall higher frequency of commentary pragmatic markers than Ugandan English users. Ghanaian English users utilise more commentary pragmatic markers in private and public dialogues and printed writing than Ugandan English users, while the latter employ more commentary pragmatic markers in monologues than their Ghanaian English counterparts. The study confirms the influence of local African languages and cultures on the use of some English commentary pragmatic markers, thus contributing to the research on nativisation and pragmatic variation in these varieties.

We evaluated an endoscope surveillance culture program at a tertiary academic center from 2019–2024. Postreprocessing culture positivity was highest for esophagogastroduodenoscopy (25.9%). Carbapenem-resistant organism matches between endoscope and patient isolates occurred in 5% of positive cultures.

Human sacrifice is one of the most dramatic and enduring rituals known to ancient societies. Death of the victim represents the climax of the event because lethal violence produces vivid images that articulate power relations between the organizers, audience, and those sacrificed. This study reconstructs burial treatments, biological profiles, and trauma patterns on 49 human sacrifices excavated from the site El Pollo located 13 km from Chan Chan, the capital city of the Chimú Empire (AD 1050/1100–1450), in the Moche Valley, Peru. Children and adolescents (n = 31/37) exhibit cutmarks to the anterior chest, which mirror the victim profiles and patterning of skeletal trauma documented at other Chimú sacrificial sites. Sacrifice at El Pollo also involved opening the chest cavities of adult males, dispatching bound male captives, and administering incisions to victim torsos to release blood. Given the administrative capacity and imperial enterprises of the Chimú Empire, these data indicate that sacrifice at El Pollo was part of a highly systematic ritual program staged throughout the Moche Valley and overseen by ruling elites at Chan Chan. This study provides evidence that sacrifice was modified to suit the civic-ceremonial needs of the empire and supported imperial efforts of militaristic expansion.

It is well known that over Heyting arithmetic with finite types, the effective principle of the formal Church thesis, stating that all number-theoretic functional relations are computable, is inconsistent with Brouwer’s intuitionistic principles on the continuum, in particular, the fan theorem. Here, we build two arithmetic quasi-toposes, validating on the one hand Brouwer’s continuity principles, including the Fan theorem, and on the other hand, a restricted form of Church’s Thesis, called the Type-theoretic Church Thesis and written $\textsf{TCT}$, expressing that all morphisms of the considered quasi-topos are computable. One quasi-topos is constructed by formalizing the category of assemblies $\mathbf{Asm}$ within Hyland’s effective topos using intuitionistic Zermelo-Fraenkel set theory $\mathbf{IZF}$ extended with Brouwer’s continuity principles as our meta-theory. The other quasi-topos is obtained as an elementary quotient completion in the same intuitionistic meta-theory. While in previous work by the first author with F. Pasquali and G. Rosolini, it has been shown that these two quasi-toposes are equivalent when working within the classical $\mathbf{ZFC}$ set theory; here, we show that this is no longer the case when working within $\mathbf{IZF}$. We also observe that the aforementioned inconsistency is resolved in such quasi-toposes by the non-validity of the axiom of unique choice on the natural numbers and that no non-trivial topos can validate the effective principle $\textsf{TCT}$ together with Brouwer’s continuity principles altogether.