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The late seventh-century introduction of silver coinage marked a transformation in the economy of north-west Europe, yet the source(s) of the silver bullion behind this change remains uncertain. Here, the authors use combined lead isotope and trace element analysis of 49 coins from England, Frisia and Francia to provide new insights into north-European silver sources during the ‘long eighth century’ (c. AD 660–820). The results indicate an early reliance on recycled Byzantine silver plate, followed by a shift c. AD 750 to newly mined metal from Francia. This change indicates the strong role of the Carolingian state in the control of metal sources and economic structures across the North Sea zone.
Scholars have long been aware of the close relationship between two ninth-century Greek-Latin bilingual manuscripts, Codex Boernerianus (GA 012, VL 77) and Codex Augiensis (GA 010, VL 78). However, assessments of the nature of this relationship differ. The present article seeks to resolve this question by comparing full electronic transcriptions of the Greek texts of these manuscripts in Romans, Galatians, Ephesians, and First Timothy. An examination of the points of divergence, including unique readings, word division, corrections and lacunae confirm that their Greek text was either copied from the same exemplar, or that one served as exemplar for the other. Close analysis of the types of errors and the way in which corrections in Codex Boernerianus are handled in Codex Augiensis proves that the latter was copied from the former. These findings indicate that, as a copy of an existing manuscript, Codex Augiensis should no longer be cited in the apparatus of the Greek New Testament.
Using evidence of the quality of vellum, fascicle structure, scribal hands and illustrations, this article argues that the first fascicle of the music portion of Oxford, Balliol College, 173A (fols. 74–81) is a self-standing booklet, perhaps created to teach a scribe the basics of music theory and how to arrange text while leaving space for illustrations or examples. A new fascicle structure of the gathering is proposed that accounts for a previously unrecognised missing folio. An analysis of the contents of the gathering demonstrates that the theory booklet is a compilatio, with portions of the Musica disciplina (or it sources) acting as a frame to start and end the booklet, with other works (Pseudo-Jerome, Isidore of Seville and Cassiodorus) inserted in between. The final folios are completed with a number of small tractatuli, including the brief dialogue Diapason quid est? The contents of both the booklet and the entire music codex are closely paralleled in one of the smaller manuscripts collected into Oxford, St John's College 188 and also Cambridge, Trinity College R.15.22. While it will be ever easier to study digital images of manuscripts and to create critical editions of well-defined texts, this article argues for the continuing importance of codicological study of manuscripts in situ to coordinate the placements of texts within the structure of codices.
An experimental investigation identifying the effects of surface roughness on the drag coefficient ($C_{D}$) of freely rolling spheres is reported. Although lubrication theory predicts an infinite drag force for an ideally smooth sphere in contact with a smooth wall, finite drag coefficients are obtained in experiments. It is proposed that surface roughness provides a finite effective gap ($G$) between the sphere and panel, resulting in a finite drag force while also allowing physical contact between the sphere and plane. The measured surface roughnesses of both the sphere and panel are combined to give a total relative roughness ($\xi$). The measured $C_{D}$ increases with decreasing $\xi$, in agreement with analytical predictions. Furthermore, the measured $C_{D}$ is also in good agreement with the combined analytical and numerical predictions for a smooth sphere and wall, with a gap approximately equal to the root-mean-square roughness ($R_q$). The accuracy of these predictions decreases for low mean Reynolds numbers ($\overline {Re}$), due to the existence of multiple scales of surface roughness that are not effectively captured by $R_{q}$. Experimental flow visualisations have been used to identify critical flow transitions that have been previously predicted numerically. Path tracking of spheres rolling on two panels with different surface roughnesses indicates that surface roughness does not significantly affect the sphere path or oscillations. Analysis of sphere Strouhal number ($St$) highlights that wake shedding and sphere oscillations are coupled at low $\overline {Re}$ but with increasing $\overline {Re}$, the influence of wake shedding on the sphere path diminishes.
Since the 1990s, there has been consensus in the literature of a submission and publication gap that favors men. Important research in the intervening years has explored the many reasons for this output gap: imbalanced administrative workloads; bias in top journals against female-dominated subfields and methodological approaches; and lower confidence levels among women, sometimes known as the “Matthew effect.” However, in the intervening period, there has been a notable emphasis on recruiting more women into academia, and the importance of publishing for career development has intensified. Journal case studies have highlighted a growth in output by women academics but show that men are still overrepresented. Using a case study of the International Political Science Review (IPSR), we contribute to the emerging body of work that shows that the gender gap has diminished or even been eliminated. We present data on submissions and acceptances by gender, and we base our comparisons in the gender balance of the departments of submitting authors. The results are clear, for IPSR, the gender gap has closed and women now publish on a par with their men colleagues in their department.
The Brazil Nut tree (Bertholletia excelsa, Lecythidaceae) is a species of considerable historical, economic and ecological importance in South America. Radiocarbon dating indicates some individuals can live from hundreds to more than 1000 years, which means they have the potential to reconstruct deep time growth patterns and their relationship to anthropogenic management or climate change from pre-colonial to present times. However, age estimates vary considerably amongst trees dated with different methods (i.e. tree-ring analysis, radiocarbon-dating, and repeated diameter measurements). Here we analyze living Brazil Nut trees growing in four distinct regions across the Brazilian Amazon using two dating methods: tree-ring counting and radiocarbon dating. Our results show that the congruence between the two methods varies amongst regions, and the highest congruence is found at the site of Tefé, Amazonas. This region features archaeological sites with anthropogenic Terra Preta soils, and is known for its long-term human forest management. This management likely enhanced light and nutrient availability, which possibly enabled the trees to grow at higher rates and form annual rings. Our findings highlight the need for better understanding of the growth of Brazil Nut trees for ecological research, but also the potential of dendrochronology for exploring climate change and human-forest interactions in the Amazon Basin.
This article offers the first systematic investigation of the linguistic forms in which Kant expresses his transcendental idealism since Gerold Prauss’ seminal book Kant und das Problem der Dinge an sich. It is argued that Prauss’ own argument for the claim that ‘in itself’ is an adverbial expression that standardly modifies verbs of philosophical reflection is flawed and that there is hence very poor exegetical evidence for so-called ‘methodological two-aspect’ interpretations of Kant’s transcendental idealism. A comprehensive investigation of Kant’s adverbial uses of ‘in itself’ rather reveals that there are various groups of verbs that ‘in itself’ modifies, which can more or less all be reduced to a standard use in which ‘in itself’ modifies verbs of predicative being such as the copula. It is also discussed how these findings can be accommodated by the two main alternative kinds of interpretations, that is, two-object and ontological two-aspect interpretations.
In this paper, I examine several sources of authority to which Origen laid claim as he set about the task of interpreting scripture. On occasion, in both his commentaries and his homilies, Origen provided accounts of his access to three different, though connected sources of authority that contributed to his self-presentation as an expert interpreter. These sources are as follows: 1) participation in the lineage of the apostles, particularly his exegetical role model, Paul. The second source of authority is a result of the first: 2) direct communication from the Logos, whom he understands to be Christ himself, and 3) angelic assistance and engagement with his pastoral exegetical project. In some instances, Origen even claimed to be on par with two of these sources of authority; he can be found claiming to have exegetical abilities similar to Paul's and, on some rare occasions, to have reached the same epistemological level as the angels. This analysis provides us not only with a case study of the kind of self-fashioning and authorising strategies used by elite scriptural exegetes in the first few centuries of the common era, but it also allows us to shift our focus away from exegetical methods towards the figure, personality and social position of the exegete him or herself. From this shift of focus we gain a better appreciation of a topic to which exegetical authors themselves dedicated considerable energy: just who it was that could occupy the office of authoritative Christian exegete and why.
Measuring the climates of the deep past requires the use of paleoclimate proxies. I describe two proxy data and measurement practices, regarding proxy calibration and proxy data infrastructure. I document how at least some data and measurement practices in paleoclimatology are disunified: these practices do not involve intercalibration or otherwise statistical combination of multiple proxy records, and metadata necessary for proxy data to be reused or intercompared is often not provided. I argue that, perhaps counterintuitively, this lack of standardization and unification of proxy data and measurements has several benefits, especially related to the management of error and uncertainty.
Are publics in great power democracies more likely to approve of foreign armed combatants that comply with international humanitarian law (IHL)? There is a wealth of evidence that armed combatants with an incentive to seek the support of outside compliance constituencies are more likely to adhere to IHL. Yet a key mechanism underlying these claims—that people in great power democracies are more likely to support armed combatants that comply with IHL—has not been directly tested. We address this question using a series of experiments embedded in nationally representative surveys conducted in three democracies that have frequently been involved in foreign interventions: France, the United Kingdom, and the United States. We find that belligerents—both governments and rebels—that comply with the laws of war are significantly more likely to garner support from publics in likely intervening countries compared to those who do not comply. In all three countries, compliance with international law caused greater approval of armed combatants as well as greater support for economic or military intervention (although support for military intervention remained relatively low in the treatment groups). This lends support to arguments that, to the extent combatants seek support from outside audiences, this can serve as a mechanism by which international law constrains armed combat.
Identifying patients at imminent risk of death is critical in the management of trauma patients. This study measures the vital sign thresholds associated with death among trauma patients.
Methods:
This study included data from patients ≥15 years of age in the American College of Surgeons Trauma Quality Improvement Program (TQIP) database. Patients with vital signs of zero were excluded. Documented prehospital and emergency department (ED) vital signs included systolic pressure, heart rate, respiratory rate, and calculated shock index (SI). The area under the receiver operator curves (AUROC) was used to assess the accuracy of these variables for predicting 24-hour survival. Optimal thresholds to predict mortality were identified using Youden’s Index, 90% specificity, and 90% sensitivity. Additional analyses examined patients 70+ years of age.
Results:
There were 1,439,221 subjects in the 2019-2020 datasets that met inclusion for this analysis with <0.1% (10,270) who died within 24 hours. The optimal threshold for prehospital systolic pressure was 110, pulse rate was 110, SI was 0.9, and respiratory rate was 15. The optimal threshold for the ED systolic was 112, pulse rate was 107, SI was 0.9, and respiratory rate was 21. Among the elderly sub-analysis, the optimal threshold for prehospital systolic was 116, pulse rate was 100, SI was 0.8, and respiratory rate was 21. The optimal threshold for ED systolic was 121, pulse rate was 95, SI was 0.8, and respiratory rate was 21.
Conclusions:
Systolic blood pressure (SBP) and SI offered the best predictor of mortality among trauma patients. The SBP values predictive of mortality were significantly higher than the traditional 90mmHg threshold. This dataset highlights the need for better methods to guide resuscitation as initial vital signs have limited accuracy in predicting subsequent mortality.
During the 1130 schism, the Anacletian Cardinal Pandulf wrote three Lives of Gelasius II, Calixtus II and Honorius II. Historiography has usually read these Lives literally, as biographies. However, if they are considered in the light of the context in which they were written, our working hypothesis is that Pandulf created these Lives in order to support Anacletus and delegitimate his enemies. They therefore function as propaganda rather than as biographies. In this article passages from each Life will be presented that are significant in reading these works from the point of view of an Anacletian supporter in the context of the schism.