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The Santa Marta Sabrewing Campylopterus phainopeplus is listed as a “Critically Endangered” hummingbird endemic to the Sierra Nevada de Santa Marta (SNSM) in Colombia. Prior to 2022, there were only three documented sightings of the sabrewing since it was described in 1879, including only one record between 1946 and 2022. As a result, this “lost” species has long been one of the most poorly known birds in Colombia. We located a resident population of Santa Marta Sabrewing along the Guatapurí River near the Chemesquemena and Guatapurí villages in July 2022, and at its type locality, San José, in January 2023. Based on historical data and newly collected field observations, we assess the species’ status and describe aspects of its natural history and ecology. Our review indicates that the species has been frequently misidentified in the past, and that to date, documented evidence of its presence is limited to four localities, all of them restricted to the south-eastern slope of the SNSM, along the mid Guatapurí River basin. Consequently, this bird appears to represent a case of microendemism. This species is likely to remain listed as Critically Endangered until conclusive evidence suggests otherwise. Field observations indicate that the species is highly associated with watercourses, where males hold year-round territories and form leks. We obtained records of males in mid-elevation habitats (1,150–1,850 m) for 16 consecutive months between July 2022 and October 2023, suggesting that the species might not be an elevational migrant, as previously speculated. More information is needed to understand the species’ ecology so that effective conservation actions can be designed in collaboration with the indigenous communities with which the species coexists.
Using a variety of analytical tools, the mineralogy of the sands and dunes at several public beaches along the coastline near Marshfield, Massachusetts was examined. X-ray powder diffraction analyses combining Rietveld methods, orientation analyses, and clustering techniques were primarily used for mineral identification. The results of the analyses point to the underlying geology, a history of glaciation, and erosion of the underlying bedrock and rocks. The sands could be termed “continental” sands since they reflect the composition of the underlying bedrock. The averaged bulk (>1%) mineral composition of the Marshfield beaches and coastal dunes is very similar and similar to other reported mineralogical analyses of Massachusetts and many New England beaches. Quartz and the alkali feldspars, microcline, and albite, comprise ~90% of dune and beach samples. These are usually followed by muscovite and clinochlore, and varieties of amphibole. Higher albite concentrations and a few characteristic minor phases (i.e., epidote) differentiate this sand from others in the region. When analyzing rocks and rock berms present on all beaches, the mineralogy is much more complex and reflects historic glacial till coverage and glacial retreat, combined with modern erosion and storm impact
To generate and employ scenarios of sentinel human and animal outbreak cases in local contexts that integrate human and animal health interests and practices and facilitate outbreak risk management readiness.
Methods
We conducted a scoping review of past outbreaks and the strengths and weaknesses of response efforts in USAID STOP Spillover program countries. This information and iterative query-and-response with country teams and local stakeholders led to curated outbreak scenarios emphasizing One Health human:animal interfaces at sub-national levels.
Results
Two core scenarios were generated adapted to each of 4 countries’ pathogen priorities and workflows in Africa and Asia, anchoring on sub-national outbreak response triggered by either an animal or human health event. Country teams subsequently used these scenarios in a variety of local preparedness discussions and simulations. The process of creating outbreak scenarios encourages discussion and review of current country practices and procedures. Guideline documents and lessons learned do not necessarily reflect how workflows occur in outbreak response in countries at highest risk for spillover events.
Conclusions
Discussion-based engagement across One Health stakeholders can improve sub-national coordination, clarify guidelines and responsibilities, and provide a space for interagency cooperation through use of scenarios in tabletop and other exercises.
The English spoken in China is categorised within the Expanding Circle in the World Englishes paradigm. Of late, the diversity of Chinese dialects has drawn scholarly attention to China English accents. This study contributes to the existing literature on China English by focusing on the Sichuan province in southwestern China. It involves participants from the largest Han ethnic group and the Yi minority. English monophthongs produced by 40 Sichuan Han and Yi speakers were elicited, and their distribution and contrasts were examined and compared to provide insights into the production of their English vowels. Findings from the instrumental analysis indicate a lack of vowel-quality contrasts in specific vowel pairs produced by both Han and Yi speakers, resulting in a simplified vowel system. There are notable differences between Han and Yi speakers in the production of English vowels, possibly influenced by their different first languages. In addition, specific gender-based inconsistencies were also found, suggesting gender as an influencing factor in the production of English monophthong vowels. Overall, this study identifies Sichuan English as an emerging sub-variety of China English and supports the perspective that China English is an evolving and distinct variety rather than an interlanguage.
This work is a numerical study of a transitional shock wave boundary layer interaction (SWBLI). The main goal is to improve our understanding of the well-known low-frequency SWBLI unsteadiness and especially the suspected role of triadic interactions in the underlying physical mechanism. To this end, a direct numerical simulation is performed using a high-order finite-volume scheme equipped with a suitable shock capturing procedure. The resulting database is then extensively post-processed in order to extract the main dynamical features of the interaction zone dynamics (involved characteristic frequencies, characteristics of the vortical structures, etc.). The dynamical organisation and space–time evolution of the flow at dominant frequencies are then further characterised by mean of an spectral proper orthogonal decomposition analysis. In order to study the role of triadic interactions occurring in the interaction region, a bispectral mode decomposition analysis is applied to the database. It allows us to extract the significant triadic interactions, their location and the resulting physical spatial modes. Strong triadic interactions are detected in the downstream part of the separation bubble whose role on the low-frequency unsteadiness is characterised. All the results of the various analyses are then discussed and integrated to formulate a possible mechanism fuelling low-frequency SWBLI unsteadiness.
Social media platforms have an increasingly central influence on global politics. Media of unprecedented reach, they have the power to sway elections, exacerbate societal polarization, promote or provoke conflict at all levels, and jeopardize relations between states. But what of the people who govern and oversee these platforms? For although algorithms and automation may underpin how social media content influences politics, the policies, approaches, and international relations of social media companies are directed or conducted by corporate executives and their representatives, actors who receive limited critical attention in International Relations (IR) scholarship. Combining multiple data sources, including field interviews with Meta and Twitter staff on three continents, this reflection suggests an approach to studying social media companies and their relationships to global politics that moves beyond abstraction and aggregation. Examining these actors and their internal dynamics through an organizational lens can shed fresh light on the contingent spatial, temporal, and normative drivers and enactments of their influence across the international system.
In the Synoptic Gospels and Acts, Thomas is mentioned only in the four lists of the Apostles (Mk 3:18; Mt 10:3; Lk 6:15; Ac 1:13). Appearing about midway through these lists, he seems to have been regarded as relatively unimportant among the Twelve. By contrast, in John’s Gospel, Thomas is presented as a central character, featuring prominently in four major scenes. In three of those scenes Thomas is given the additional name Didymus (Twin), a name exclusive to him in John’s Gospel and later tradition, especially in connection with Syrian Edessa. By the 4th century, Edessa had become famous for its special veneration of the Apostle Thomas, with sources featuring Thomas as the missionary link between Jesus and the early Christianisation of lands from Syria to India. The Edessan School of Thomas developed an encratic school of devotion to Thomas as the mystical twin of Jesus and prototypical Christian healer, and the Syrian city housed an established shrine for his remains. Scholars rightly contest the historical value of these sources, but analysis of their provenance, content and reception allows us to outline a picture whose lines converge in a coherent and plausible tradition of devotion that, in just a few centuries, reached as far east as India and as far west as Spain, Gaul, and Britain.
Geophysical flows are typically composed of wave and mean motions with a wide range of overlapping temporal scales, making separation between the two types of motion in wave-resolving numerical simulations challenging. Lagrangian filtering – whereby a temporal filter is applied in the frame of the flow – is an effective way to overcome this challenge, allowing clean separation of waves from mean flow based on frequency separation in a Lagrangian frame. Previous implementations of Lagrangian filtering have used particle tracking approaches, which are subject to large memory requirements or difficulties with particle clustering. Kafiabad & Vanneste (2023, Computing Lagrangian means, J. Fluid Mech., vol. 960, A36) recently proposed a novel method for finding Lagrangian means without particle tracking by solving a set of partial differential equations alongside the governing equations of the flow. In this work, we adapt the approach of Kafiabad & Vanneste to develop a flexible, on-the-fly, partial differential equation-based method for Lagrangian filtering using arbitrary convolutional filters. We present several different wave–mean decompositions, demonstrating that our Lagrangian methods are capable of recovering a clean wave field from a nonlinear simulation of geostrophic turbulence interacting with Poincaré waves.
When the USA entered World War I, Socialists, German immigrants, and German-Americans in southeastern Wisconsin went from being generally accepted and influential members of their communities to being marginalized and vilified. German immigrants who had been well integrated into conventional society became enemy aliens. Socialists and German-Americans faced new restrictions on their movement and speech. Scholarship on groups faced with this level of repression finds that they often either withdraw from mainstream society and acquiesce to their mistreatment or fight back through violent or other extralegal tactics. Socialists and German-Americans in Milwaukee did neither. Instead, they embraced their marginalized status and continued to use the law to advance their interests. They resisted their vilification by the law by uniting around those very shared identities that the law was used to marginalize them.
The great technological and typological variability identified among the Middle Palaeolithic (MP) assemblages previously assigned to the Zagros Mousterian in the Zagros suggests that this industry is not a homogeneous cultural unit. The archaeological record from the Caucasus and Armenian highlands contributes important data to understand the variability of the Zagros Mousterian. The authors show that the long stratigraphic sequences of the caves of Taglar in the Lesser Caucasus and Yerevan-1 in the Armenian highlands provide a line of development (the ‘Yerevan–Taglar tradition’) of the Zagros Mousterian variant in this region at least from 60/55 to 40 kya. The earliest manifestations of the Zagros Mousterian in the regions may be dated to the early MIS 5 or earlier. The MP assemblages from the cave of Saradj-Chuko and two other MP sites in the Terek river basin represent the northern Caucasian variant of the Zagros Mousterian, which existed in the region from MIS 5 to MIS 3. The remains of Neanderthals associated with the Zagros Mousterian assemblages in the Zagros and Caucasus clearly indicate that the makers of this cultural tradition were Neanderthals.
I begin with the intuition that there is something wrong with praying for the past, for example, praying for a basketball team to win after the game has ended. My aim is to find a philosophical explanation for why this is wrong. I explore three explanations for the wrongness in praying for the past, reject the first two, and offer a third. The first is based on the idea that prayer for the past is inefficacious. This assumption turns out to be mistaken. The second relies on religious considerations; I reject this explanation since it is too narrow and does not explain the initial intuition. I then argue that prayer for past events is wrong in virtue of being an unwarranted response, similar to how emotions can be unwarranted. I use concepts from the philosophy of fittingness to articulate my explanation.
While the innovation behaviors of family firms (FFs) have attracted burgeoning scholarly attention, few studies have investigated how intergenerational succession, one of the most critical aspects of family dynamics changes among FFs, affects innovation behaviors. Based on the socioemotional wealth perspective (SEW), we have introduced a concept of innovation decoupling that refers to the tendency of prioritizing the symbolic disclosures over substantive changes of innovation and proposed that FFs that have experienced intergenerational succession would exhibit a greater extent of innovation decoupling. By tracking a sample of Chinese publicly listed FFs from 2012 to 2021 while applying the machine learning approach, we have confirmed the proposition and further unveiled that such inclination becomes weaker when the focal FF is influenced by the family affective endowment and the successor with ascribed bureaucratic connections. Overall, this study brings new nuances to the knowledge of the innovation behaviors of FFs by highlighting the inter-firm heterogeneities and impacts of family dynamics.
The Mongol conquest of Iran (1220–1231) coincided with the “literarization of history” across the Islamic world. In Iran, this phenomenon was characterized by the production of verse histories, modeled on Firdaūsī’s Shāh-nāmah. Ḥakīm Zajjājī’s Humāyūn-nāmah is one of the lesser-known examples of this genre, with modern scholars disputing both the date of its composition and the historical value of its contents. The present article analyzes the personalities and events described in the Humāyūn-nāmah, situating it in the broader community of letters cultivated by the Īlkhānid vizier Shams al-Dīn Juvaynī between 1249–1284. This article shows that the Humāyūn-nāmah was not only a piece of art, but a valuable eye-witness account of early Mongol rule in Iran (1220–1258).
The Journal of Law and Religion began publishing as part of the larger revival and reimagination of the academic encounter with religion. More specifically, it sought from the start to examine an entire panoply of issues: secular law regarding religion, religious views of secular law and the state, political philosophy, political theology, religious law, and legal and religious pluralism as overarching ideas. What was at stake to the journal’s founders was not just intellectual curiosity but their conviction that this kaleidoscope of concerns was essential to reconstituting a healthy polity, to play a role in responding to a crisis of values that afflicted both religion and the secular state. The journal has also sought to consider questions across the full range of world religions, including non-Western religions. Again, this is not expanding the canon for its own sake. The larger story of legal systems and religions in all their specificity and complex interactions, as revealed by rigorous and imaginative analysis, could ideally help establish a counter-narrative to the simple pieties of modernity. The challenges today, especially our current state of political polarization, which envelops religion in its wake, are different, but they demand the same careful, expansive, scholarly agenda.