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No evidence for excess AGN activity in recently quenched massive galaxies at cosmic noon
Get PDFFunding: OA acknowledges the support from STFC grant ST/X006581/1. VW acknowledges the support from STFC grant ST/Y00275X/1. We gratefully acknowledge support from the NASA Astrophysics Data Analysis Programme (ADAP) under grant 80NSSC23K0495.We present an analysis of AGN activity within recently quenched massive galaxies at cosmic noon (z ∼ 2), using deep Chandra X-ray observations of the Ultra-Deep Survey (UDS) field. Our sample includes over 4000 massive galaxies (M∗ > 1010.5 M☉) in the redshift range 1<z<3, including more than 200 transitionary post-starburst (PSB) systems. We find that X-ray emitting AGN are detected in 6.2 ± 1.5 per cent of massive PSBs at these redshifts, a detection rate that lies between those of star-forming and passive galaxies (8.2 ± 0.5 per cent and 5.7 ± 0.8 per cent, respectively). A stacking analysis shows that the average X-ray luminosity for PSBs is comparable to older passive galaxies, but a factor of 2.6 ± 0.3 below star-forming galaxies of similar redshift and stellar mass. The average X-ray luminosity in all populations appears to trace the star formation rate, with PSBs showing low levels of AGN activity consistent with their reduced levels of star formation. We conclude that, on average, we see no evidence for excess AGN activity in the PSB phase. However, the low levels of AGN activity can be reconciled with the high-velocity outflows observed in many PSBs, assuming the rare X-ray detections represent short-lived bursts of black hole activity, visible ∼5 per cent of the time. Thus, X-ray AGN may help to maintain quiescence in massive galaxies at cosmic noon, but the evidence for a direct link to the primary quenching event remains elusive.Peer reviewe
Hollywood Before the Code (1921–1934), Paris Sorbonne University and Paris Nanterre University, June 27–29, 2024 (conference report)
Get PDFReport on the conference Hollywood Before the Code (1921–1934), held at Paris Sorbonne University and Paris Nanterre University, June 27–29, 2024.Non peer reviewe
Developing user-centred approaches to technological innovation in literary translation (DUAL-T)
Get PDFFunding: This project has received funding from the European Union’s Horizon Europe (HORIZON) research and innovation programme under the Marie Skłodowska-Curie grant agreement No 101062428.DUAL-T is a Marie Skłodowska-Curie Postdoctoral Fellowship project which aims at involving literary translators in the testing of technology-inclusive workflows. Participants will be asked to translate three short stories using, respectively, (1) a word processor combined with online resources, (2) a computer-aided translation (CAT) tool, and (3) a machine translation post-editing (MTPE) tool
Vertical redistribution of principle water masses on the Northeast Greenland shelf
Get PDFFunding: C.S. acknowledges received funding from the Independent Research Fund Denmark Grant No. 9040-00266B (C.S.) and the Nordic Council of Ministers AG-Fisk Grant number (209)-2020-LEGCO (C.S.).The Northeast Greenland shelf (NEGS) is a recipient of Polar Water (PW) from the Arctic Ocean, Greenland Ice Sheet melt, and Atlantic Water (AW). Here, we compile hydrographical measurements to quantify long-term changes in fjords and coastal waters. We find a profound change in the vertical distribution of water masses, with AW shoaling >60 m and PW thinning >50 m since early 2000’s. The properties of these waters have also changed. AW is now 1 °C warmer and the salinity of surface waters and PW are 1.8 and 0.68 lower, respectively. The AW changes have substantially weakened stratification south of ~74°N, indicating increased accessibility of heat and potentially nutrients associated with AW. The Atlantification earlier reported for the eastern Fram Strait and Barents Sea region has also propagated to the NEGS. The increased presence of AW, is an important driver for regional change leading to a likely shift in ecosystem structure and function.Peer reviewe
Nucleophilic fluorination catalyzed by a cyclometallated rhodium complex
Get PDFFunding: P.J.M. acknowledges financial support provided by the EPSRC Centre for Doctoral Training for Sustainable Chemistry (EP/L015633/1).Quantitative catalytic nucleophilic fluorination of a range of acyl chlorides to acyl fluorides was promoted by a cyclometallated rhodium complex [(η5,κ2C-C5Me4CH2C6F5CH2NC3H2NMe)- RhCl] ( 1 ). 1 can be prepared in high yields from commercially available starting materials using a one-pot method. The catalyst could be separated, regenerated, and reused. Rapid quantitative fluorination generated the fluoride analogue of the active pharmaceutical ingredient probenecid. Infrared in situ monitoring verified the clean conversion of the substrates to products. VTNA graphical kinetic analysis and DFT calculations lead to a postulated reaction mechanism involving a nucleophilic Rh–F bond.Peer reviewe
Effects of temperature on mating behaviour and mating success : a meta‐analysis
Get PDFFunding: Open access funding enabled and organized by ProjektDEAL.1. In light of global climate change, there is a pressing need to understand how populations will respond to rising temperatures. Understanding the effects of temperature changes on mating behaviour is particularly important, given its implications for population viability. 2. To this end, we performed a meta-analysis of 53 studies to examine how temperature changes influence mating latency, choosiness and mating success. We hypothesized that if higher temperatures make mate searching and mate assessment more costly due to an elevated metabolism, this may lead to a reduction in mating latency and choosiness, thereby increasing overall mating success. 3. We found no evidence for an overall effect of temperature on mating latency, choosiness, or mating success. There was an increase in mating success when animals were exposed to higher temperatures during mating trials but not when they were exposed before mating trials. 4. In addition, in a subset of studies that measured both mating latency and mating success, there was a strong negative relationship between the effect sizes for these traits. This suggests that a decrease in mating latency at higher temperatures was associated with an increase in mating success and vice versa. 5. In sum, our meta-analysis provides new insights into the effects of temperature on mating patterns. The absence of a consistent directional effect of temperature on mating behaviours and mating success suggests it may be difficult to predict changes in the strength of sexual selection in natural populations in a warming world. Nevertheless, there is some evidence that (a) higher temperatures during mating may lead to an increase in mating success and that (b) an increase in mating success is associated with a decrease in mating latency.Peer reviewe
Models and techniques to study aortic valve calcification in vitro, ex vivo and in vivo. An overview
Get PDFFunding: This work has been funded by The South-Eastern Health Authorities by a postdoc scholarship to AR. AZ has been the recipient of a Scientia Fellow scholarship funded by the European Union and the Faculty of Medicine, University of Oslo, and has at present a postdoc scholarship from the Norwegian Health Association. Further funding has been received by the University of Oslo (including PhD scholarship to MB), The Norwegian Health Association, and by Russian Science Foundation (grant # 18-14-00152). GJS was partly supported by the Research Council of Norway through its Center of Excellence funding scheme (project number 262613).Aortic valve stenosis secondary to aortic valve calcification is the most common valve disease in the Western world. Calcification is a result of pathological proliferation and osteogenic differentiation of resident valve interstitial cells. To develop non-surgical treatments, the molecular and cellular mechanisms of pathological calcification must be revealed. In the current overview, we present methods for evaluation of calcification in different ex vivo, in vitro and in vivo situations including imaging in patients. The latter include echocardiography, scanning with computed tomography and magnetic resonance imaging. Particular emphasis is on translational studies of calcific aortic valve stenosis with a special focus on cell culture using human primary cell cultures. Such models are widely used and suitable for screening of drugs against calcification. Animal models are presented, but there is no animal model that faithfully mimics human calcific aortic valve disease. A model of experimentally induced calcification in whole porcine aortic valve leaflets ex vivo is also included. Finally, miscellaneous methods and aspects of aortic valve calcification, such as, for instance, biomarkers are presented.Peer reviewe
Studying Kurdishness in Turkey : a review of existing research
Get PDFKnowledge production on marginalized identities is frequently shaped by epistemic violence, which limits both the scope and methodologies of research. One example of this is the case of Kurdish identity in Turkey, where we find that methodological and epistemic problems are evident particularly in social psychological research. To summarize social psychological studies on Kurdishness, Kurdish identity and conflict in Turkey we've conducted a systematic review that includes a total of 63 studies on topics related to Kurdishness. We utilize qualitative content analysis (Schreier, 2012) to address: (1) whether samples in the studies in our review represent Kurds, (2) which topics the studies mostly focus on, (3) how Kurdish identity and Kurds as a group are conceptualized and (4) how the Kurdish issue is conceptualized. We discuss our findings in light of epistemic violence and methodological nationalism and identify the key gaps in the literature and offer a critical, inclusive understanding of the social psychological studies on Kurdish identity and state violence in Turkey.Peer reviewe
Inventing provinciality : St Andrews and the global networks of early Victorian photography
Get PDFFunding: This research was supported by a grant from the Scottish Funding Council.This article examines the advent of photography in the Scottish university town of St Andrews in the context of local ties to the British Empire. It seeks to foreground the colonialist networks of some of the town’s principal families and argues that these investments ensured the avid reception and circulation of the calotype process and its products along well-established diasporic routes. In the latter section, David Brewster’s essays on photography will be assessed for their foundational statements on the camera’s potential imperialist applications. Brewster’s writings demonstrate the conceptual frameworks of empire that underpinned the adoption of photography in St Andrews. This article argues against the implicit associations that attend “provincial” photographic archives as circumscribed by local histories, geographies, and civic concerns. By doing so, it questions the politics of provincialising historiographies that disregard the extensive colonial networks of rural and small-town communities in the assessment of their photographic activities and vast archival legacies.Peer reviewe
Community coastal zone assessment surveys : methods and experiences from Scotland
Get PDFFunding: Historic Environment Scotland funds the current program of Community Coastal Zone Assessment Surveys through their Partnership Fund, grant number PF2022-1136.Community Coastal Zone Assessment Surveys (CCZASs) conducted on the Scottish coast aim to characterize and assess the significance, condition, and vulnerability of coastal archaeology and to prioritize assets most at risk. Two key differences from earlier coastal zone assessment survey methods are the use of coastline vulnerability models to target fieldwork and the involvement of the public in the surveys. This article details the methodology used to plan for, carry out, and disseminate results of the surveys, including the following: evaluating and targeting coastlines in a GIS framework to focus new coastal surveys in areas most susceptible to erosion, using SCAPE's coastal archaeology recording mobile application as our survey tool, managing data through SCAPE's Sites at Risk portal, involving local volunteers, and disseminating findings and data flow into regional and national historic environment databases. We discuss results and reflections from surveys of the Highland, Moray, and Aberdeenshire coastlines conducted in 2022 and conclude with general principles applicable beyond Scotland.Peer reviewe
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