cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Helium-like X-ray line complexes show that the hottest plasma on the O supergiant zeta Puppis is in its wind
Creators: name: Cohen, David H.
name: Overdorff, Ariel M.
name: Leutenegger, Maurice A.
name: Gagné, Marc
name: Petit, Véronique
name: David-Uraz, Alexandre
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present an analysis of Chandra grating spectra of key helium-like line complexes to put constraints on the location with respect to the photosphere of the hottest ($T \gtrsim{6 \times 10^6}$ K) plasma in the wind of the O supergiant zeta Pup and to explore changes in the 18 years between two sets of observations of this star. We fit two models -- one empirical and one wind-shock-based -- to the S XV, Si XIII, and Mg XI line complexes and show that an origin in the wind flow, above $r \approx 1.5$ R$_{\ast}$, is strongly favored over an origin less than 0.3 R$_{\ast}$ above the photosphere ($r \lesssim 1.3$ R$_{\ast}$), especially in the more recent, very long-exposure data set. There is a modest increase in the line and continuum fluxes, line widths, wind absorption signatures, and of the hot plasma's distance from the photosphere in the 18 years since the first Chandra grating observation of zeta Pup. Both modes of modeling include the effects of dielectronic recombination satellite emission line blending on the helium-like complexes -- the first time this has been accounted for in the analysis of He-like line ratios in O stars.
description: MNRAS accepted; 16 pages, 10 figures, 6 tables
Cosmological constraints from the density gradient weighted correlation function
Creators: name: Xiao, Xiaoyuan
name: Yang, Yizhao
name: Luo, Xiaolin
name: Ding, Jiacheng
name: Huang, Zhiqi
name: Wang, Xin
name: Zheng, Yi
name: Sabiu, Cristiano G.
name: Forero-Romero, Jaime
name: Miao, Haitao
name: Li, Xiao-Dong
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The mark weighted correlation function (MCF) $W(s,μ)$ is a computationally efficient statistical measure which can probe clustering information beyond that of the conventional 2-point statistics. In this work, we extend the traditional mark weighted statistics by using powers of the density field gradient $|\nabla ρ/ρ|^α$ as the weight, and use the angular dependence of the scale-averaged MCFs to constrain cosmological parameters. The analysis shows that the gradient based weighting scheme is statistically more powerful than the density based weighting scheme, while combining the two schemes together is more powerful than separately using either of them. Utilising the density weighted or the gradient weighted MCFs with $α=0.5,\ 1$, we can strengthen the constraint on $Ω_m$ by factors of 2 or 4, respectively, compared with the standard 2-point correlation function, while simultaneously using the MCFs of the two weighting schemes together can be $1.25$ times more statistically powerful than using the gradient weighting scheme alone. The mark weighted statistics may play an important role in cosmological analysis of future large-scale surveys. Many issues, including the possibility of using other types of weights, the influence of the bias on this statistics, as well as the usage of MCFs in the tomographic Alcock-Paczynski method, are worth further investigations.
description: 11 pages, 8 figures. Accepted by MNRAS
Sensor Data Validation and Driving Safety in Autonomous Driving Systems
Creators: name: Zhang, Jindi
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Autonomous driving technology has drawn a lot of attention due to its fast development and extremely high commercial values. The recent technological leap of autonomous driving can be primarily attributed to the progress in the environment perception. Good environment perception provides accurate high-level environment information which is essential for autonomous vehicles to make safe and precise driving decisions and strategies. Moreover, such progress in accurate environment perception would not be possible without deep learning models and advanced onboard sensors, such as optical sensors (LiDARs and cameras), radars, GPS. However, the advanced sensors and deep learning models are prone to recently invented attack methods. For example, LiDARs and cameras can be compromised by optical attacks, and deep learning models can be attacked by adversarial examples. The attacks on advanced sensors and deep learning models can largely impact the accuracy of the environment perception, posing great threats to the safety and security of autonomous vehicles. In this thesis, we study the detection methods against the attacks on onboard sensors and the linkage between attacked deep learning models and driving safety for autonomous vehicles. To detect the attacks, redundant data sources can be exploited, since information distortions caused by attacks in victim sensor data result in inconsistency with the information from other redundant sources. To study the linkage between attacked deep learning models and driving safety...
description: PhD Thesis, City University of Hong Kong. arXiv admin note: substantial text overlap with arXiv:2110.10523, arXiv:2108.02940
title: 01_0981
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
A Mesolithic Site at Wonham
Creators: name: Ellaby, Roger L
Publisher: name: Archaeology Data Service
Year: 2008

description: Surrey Archaeological Collections, 71, 7-12
description: TQ 223494. A large surface collection of flint artefacts from a site on the River Mole near Reigate includes a high proportion of narrow blade microliths, and a 4th millenniun; bc date is suggested. Other Meso sites in the immediate area are listed. CB
Polesden Lacey and Ranmore Common estates, near Dorking: an archaeological and historical survey
Creators: name: Currie, Christopher K
Publisher: name: Archaeology Data Service
Year: 2001

description: Surrey Archaeological Collections, 87, 49-84
description: Examines the evidence for the development of the two estates from prehistoric times. A notable feature of the estate revealed by the earliest written records is the presence of `hatches' or gates where ancient tracks leave the farmland to enter the common -- the majority of hatches have ancient farms next to them, seemingly situated to take advantage of grazing on the common. Records appear to date from when medieval expansion of the common was reaching its fullest extent. Since the fourteenth century at least one farmstead has disappeared. By 1614 the Polesden estate had grown from a medieval farmstead to a substantial estate of 391 acres, the basis of a country house estate. The estate was bequeathed to the National Trust in 1942.
The origin of correlations between mass, metallicity and morphology in galaxies from the EAGLE simulation
Creators: name: Zenocratti, L. J.
name: De Rossi, M. E.
name: Theuns, T.
name: Lara-López, M. A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Observed and simulated galaxies exhibit correlations between stellar mass, metallicity and morphology. We use the EAGLE cosmological simulation to examine the origin of these correlations for galaxies in the stellar mass range $10^9~\rm{M_\odot} \leqslant\ M_\star \leqslant 10^{10}~\rm{M_\odot}$, and the extent to which they contribute to the scatter in the mass-metallicity relation. We find that rotationally supported disc galaxies have lower metallicity than dispersion supported spheroidal galaxies at a given mass, in agreement with previous findings. In EAGLE, this correlation arises because discs form stars at later times, redshift $z\leqslant 1$, from the accretion of low-metallicity gas, whereas spheroidal galaxies galaxies typically form stars earlier, mainly by consumption of their gas reservoir. The different behaviour reflects the growth of their host dark matter halo: at a given stellar mass, disc galaxies inhabit dark matter haloes with lower mass that formed later compared to the haloes of spheroidal galaxies. Halo concentration plays a secondary role.
description: 18 pages, 12 figures. Accepted for publication in MNRAS
Benchmarking nearest neighbor retrieval of zebra finch vocalizations across development
Creators: name: Tomka, Tomas
name: Hao, Xinyu
name: Miao, Aoxue
name: Lee, Kanghwi
name: Basha, Maris
name: Reimann, Stefan
name: Zai, Anja T.
name: Hahnloser, Richard H.R.
Publisher: name: ETH Zurich
Year: 2023

description: Vocalizations are highly specialized motor gestures that regulate social interactions. The reliable detection of vocalizations from raw streams of microphone data remains an open problem even in research on widely studied animals such as the zebra finch. A promising method for finding vocal samples from potentially few labelled examples (templates) is nearest neighbor retrieval, but this method has never been extensively tested on vocal segmentation tasks. We retrieve zebra finch vocalizations as neighbors of each other in the sound spectrogram space. Based on merely 50 templates, we find excellent retrieval performance in adults (F1 score of 0.93 ± 0.07) but not in juveniles (F1 score of 0.64 ± 0.18), presumably due to the larger vocal variability of the latter. The performance in juveniles improves when retrieval is based on fixed-size template slices (F1 score of 0.72 ± 0.10) instead of entire templates. Among the several distance metrics we tested such as the cosine and the Euclidean distance, we find that the Spearman distance largely outperforms all others. We release our expert-curated dataset of more than 50’000 zebra finch vocal segments, which will enable training of data-hungry machine-learning approaches.
description: bioRxiv
Guarantees for Spontaneous Synchronization on Random Geometric Graphs
Creators: name: Abdalla, Pedro
name: Bandeira, Afonso S.
name: Invernizzi, Clara
Publisher: name: ETH Zurich
Year: 2022
Subjects: Probability (math.PR)
Combinatorics (math.CO)
Optimization and Control (math.OC)
FOS: Mathematics

description: The Kuramoto model is an important mathematical model to study the synchronization phenomena in complex networks. The rich theory behind the rigorous treatment of the synchronization phenomenon has been connected to many branches of science. In particular, the study of the energy function associated with the Kuramoto model is relevant in the context of non-convex optimization for machine learning and data science. In this work, we use tools from random matrix theory, random graphs, and statistics to derive rigorous guarantees for the random geometric graph on the sphere to synchronize with probability of success tending to one as the number of nodes tends to infinity. To the best of our knowledge, this is the first rigorous result for the Kuramoto model on random geometric graphs.
description: arXiv
The Symbiotic X-ray binaries Sct X-1, 4U 1700+24 and IGR J17329-2731
Creators: name: Bozzo, E.
name: Romano, P.
name: Ferrigno, C.
name: Oskinova, L.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Symbiotic X-ray binaries are systems hosting a neutron star accreting form the wind of a late type companion. These are rare objects and so far only a handful of them are known. One of the most puzzling aspects of the symbiotic X-ray binaries is the possibility that they contain strongly magnetized neutron stars. These are expected to be evolutionary much younger compared to their evolved companions and could thus be formed through the (yet poorly known) accretion induced collapse of a white dwarf. In this paper, we perform a broad-band X-ray and soft $γ$-ray spectroscopy of two known symbiotic binaries, Sct X-1 and 4U 1700+24, looking for the presence of cyclotron scattering features that could confirm the presence of strongly magnetized NSs. We exploited available Chandra, Swift, and NuSTAR data. We find no evidence of cyclotron resonant scattering features (CRSFs) in the case of Sct X-1 but in the case of 4U 1700+24 we suggest the presence of a possible CRSF at $\sim$16 keV and its first harmonic at $\sim$31 keV, although we could not exclude alternative spectral models for the broad-band fit. If confirmed by future observations, 4U 1700+24 could be the second symbiotic X-ray binary with a highly magnetized accretor. We also report about our long-term monitoring of the last discovered symbiotic X-ray binary IGR J17329-2731 performed with Swift/XRT. The monitoring revealed that, as predicted, in 2017 this object became a persistent and variable source, showing X-ray flares lasting for a few days and intriguing obscuration events that are interpreted in the context of clumpy wind accretion.
description: Accepted for publication on MNRAS
Probing spectral and temporal evolution of the neutron star low-mass X-ray binary 4U 1724-30 with AstroSat
Creators: name: Kashyap, Unnati
name: Chakraborty, Manoneeta
name: Bhattacharyya, Sudip
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report the broadband spectro-temporal study of the poorly studied accreting neutron star (NS) low mass X-ray binary (LMXB) 4U 1724-30 using data from Soft X-ray Telescope (SXT) and Large Area X-ray Proportional Counters (LAXPC) instruments on board AstroSat. The dim persistent LMXB source was observed with AstroSat over 4 epochs in 2017, all of which corresponded to a low-luminosity non-thermal emission dominated (hard/island) emission state with modest spectral evolution. All the X-ray broadband spectra can be modelled by a combination of thermal emission from the NS boundary layer (BL) or NS surface and a non-thermal emission component possibly originating from the inverse Comptonization of the disc seed photons. We investigate the presence of frequency and energy-dependent variabilities to probe the origin of the disc/coronal fluctuations. We also report the detection of a Type-I X-ray burst displaying a photospheric radius expansion (PRE). During the burst, a hard X-ray shortage in the 30-80 keV energy band and the enhancement of the persistent emission reveal the burst feedback on the overall accretion process. Using the touch-down burst flux $\sim$ $4.25 \times 10^{-8}$ erg s$^{-1}$ cm$^{-2}$, the distance of the source is estimated as $\sim$ 8.4 kpc.
description: 12 pages, 9 figures, 6 tables. Accepted for publication in MNRAS
New calibrations for estimating the N/O ratio in HII regions
Creators: name: Florido, Estrella
name: Zurita, Almudena
name: Pérez-Montero, Enrique
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We use a sample of 536 \hii\ regions located in nearby spirals, with an homogeneous determination of their $T_e$-based abundances, to obtain new empirical calibrations of the N2O2, N2S2, O3N2, and N2 strong-line indices to estimate the nitrogen-to-oxygen abundance ratio when auroral lines are not detected. All indices are strongly correlated with the $T_e$-based $\log$(N/O) for our \hii\ region sample, even more strongly than with $12+\log$(O/H). N2O2 is the most strongly correlated index, and the best fit to the $\log$(N/O)-N2O2 relation is obtained with a second-order polynomial. The derived relation has a low dispersion ({\em rms}$
description: 14 pages, 11 figures, accepted for publication in MNRAS
Atmosphere Loss in Oblique Super-Earth Impacts
Creators: name: Denman, Thomas R.
name: Leinhardt, Zoe M.
name: Carter, Philip J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Using smoothed particle hydrodynamics we model giant impacts of Super-Earth mass rocky planets between an atmosphere-less projectile and an atmosphere-rich target. In this work we present results from head-on to grazing collisions. The results of the simulations fall into two broad categories: 1) one main post-collision remnant containing material from target and projectile; 2) two main post-collision remnants resulting from `erosive hit-and-run' collisions. All collisions removed at least some of the target atmosphere, in contrast to the idealised hit-and-run definition in which the target mass is unchanged. We find that the boundary between `hit-and-run' collisions and collisions that result in the projectile and target accreting/merging to be strongly correlated with the mutual escape velocity at the predicted point of closest approach. Our work shows that it is very unlikely for a single giant impact to remove all of the atmosphere. For all the atmosphere to be removed, head-on impacts require roughly the energy of catastrophic disruption (i.e. permanent ejection of half the total system mass) and result in significant erosion of the mantle. We show that higher impact angle collisions, which are more common, are less efficient at atmosphere removal than head-on collisions. Therefore, single collisions that remove all the atmosphere without substantially disrupting the planet are not expected during planet formation.
description: 21 pages, 13 figures, to be published in MNRAS
Self-replication of Aβ₄₂ aggregates occurs on small and isolated fibril sites
Creators: name: Curk, Samo
name: Krausser, Johannes
name: Meisl, Georg
name: Frenkel, Daan
name: Linse, Sara
name: Michaels, Thomas C.T.
name: Knowles, Tuomas P.J.
name: Šarić, Anđela
Publisher: name: ETH Zurich
Year: 2023

description: Self-replication of amyloid fibrils via secondary nucleation is an intriguing physicochemical phenomenon in which existing fibrils catalyse the formation of their own copies. The molecular events behind this fibril surface-mediated process remain largely inaccessible to current structural and imaging techniques. Using statistical mechanics, computer modelling, and chemical kinetics, we show that the catalytic structure of the fibril surface can be inferred from the aggregation behaviour in the presence and absence of a fibril-binding inhibitor. We apply our approach to the case of Alzheimer’s Aβ₄₂ amyloid fibrils formed in the presence of proSP-C Brichos inhibitors. We find that self-replication of Aβ₄₂ fibrils occurs on small catalytic sites on the fibril surface, which are far apart from each other, and each of which can be covered by a single Brichos inhibitor.
description: bioRxiv
A Romano-British Site at Binscombe, Godalming
Creators: name: Smith, Clare
Publisher: name: Archaeology Data Service
Year: 2008

description: Surrey Archaeological Collections, 71, 13-42
description: SU 970460. Excavation revealed occupation from early 1st to 4th centuries in three successive phases. The structures, which may have been part of a villa estate, included a leat, a timber-framed building with opus signinum, a ?latrine and a ?stable containing the skeleton of a horse with mutilated legs. RB coarse wares, samian and some medieval pottery are catalogued.
The JWST Early Release Science Program for Direct Observations of Exoplanetary Systems III: Aperture Masking Interferometric Observations of the star HIP 65426 at 3.8 μm
Creators: name: Ray, Shrishmoy
name: Sallum, Steph
name: Hinkley, Sasha
name: Sivamarakrishnan, Anand
name: Cooper, Rachel
name: Kammerer, Jens
name: Greebaum, Alexandra Z.
name: Thatte, Deepashri
name: Lazzoni, Cecilia
name: Tokovinin, Andrei
name: de Furio, Matthew
name: Factor, Samuel
name: Meyer, Michael
name: Stone, Jordan M.
name: Carter, Aarynn
name: Biller, Beth
name: Skemer, Andrew
name: Suárez, Genaro
name: Leisenring, Jarron
name: Perrin, Marshall D.
name: Patapis, Polychronis
name: Quanz, Sascha Patrick
name: et al.
Publisher: name: ETH Zurich
Year: 2023
Subjects: Earth and Planetary Astrophysics (astro-ph.EP)
Instrumentation and Methods for Astrophysics (astro-ph.IM)
FOS: Physical sciences

description: We present aperture masking interferometry (AMI) observations of the star HIP 65426 at $3.8\,\rm{μm}$ as a part of the \textit{JWST} Direct Imaging Early Release Science (ERS) program obtained using the Near Infrared Imager and Slitless Spectrograph (NIRISS) instrument. This mode provides access to very small inner working angles (even separations slightly below the Michelson limit of ${}0.5λ/D$ for an interferometer), which are inaccessible with the classical inner working angles of the \textit{JWST} coronagraphs. When combined with \textit{JWST}'s unprecedented infrared sensitivity, this mode has the potential to probe a new portion of parameter space across a wide array of astronomical observations. Using this mode, we are able to achieve a contrast of $Δm_{F380M}{\sim }7.8$\,mag relative to the host star at a separation of ${\sim}0.07\arcsec$ but detect no additional companions interior to the known companion HIP\,65426\,b. Our observations thus rule out companions more massive than $10{-}12\,\rm{M\textsubscript{Jup}}$ at separations ${\sim}10{-}20\,\rm{au}$ from HIP\,65426, a region out of reach of ground or space-based coronagraphic imaging. These observations confirm that the AMI mode on \textit{JWST} is sensitive to planetary mass companions orbiting at the water frost line, even for more distant stars at $\sim$100\,pc. This result will allow the planning and successful execution of future observations to probe the inner regions of nearby stellar systems, opening essentially unexplored parameter space.
description: arXiv
Roads, Bridges and the Origin of Roman London
Creators: name: Dawson, Graham J
Publisher: name: Archaeology Data Service
Year: 2008

description: Surrey Archaeological Collections, 71, 43-55
description: Discussion of the available archaeological evidence, with emphasis on the Roman road pattern north and south of the river, relating to the position of the Roman bridge over the Thames which the author places on a line between the southern foot of the modern London Bridge and the south end of Miles Lane. A model explaining the development of Roman London as a civilian settlement growing up round a nodal transport point is suggested. S McC
Discoveries and Timing of Pulsars in NGC 6440
Creators: name: Vleeschower, L.
name: Stappers, B. W.
name: Bailes, M.
name: Barr, E. D.
name: Kramer, M.
name: Ransom, S.
name: Ridolfi, A.
name: Krishnan, V. Venkatraman
name: Possenti, A.
name: Keith, M. J.
name: Burgay, M.
name: Freire, P. C. C.
name: Spiewak, R.
name: Champion, D. J.
name: Bezuidenhout, M. C.
name: Niţu, I. C.
name: Chen, W.
name: Parthasarathy, A.
name: DeCesar, M. E.
name: Buchner, S.
name: Stairs, I. H.
name: Hessels, J. W. T.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Using the MeerKAT radio telescope, a series of observations have been conducted to time the known pulsars and search for new pulsars in the globular cluster NGC 6440. As a result, two pulsars have been discovered, NGC 6440G and NGC 6440H, one of which is isolated and the other a non-eclipsing (at frequencies above 962 MHz) "Black Widow", with a very low mass companion (M$_{\rm c}$ > 0.006 M$_{\odot}$). It joins the other binary pulsars discovered so far in this cluster which all have low companion masses (M$_{\rm c}$ < 0.30 M$_{\odot}$). We present the results of long-term timing solutions obtained using data from both Green Bank and MeerKAT telescopes for these two new pulsars and an analysis of the pulsars NGC 6440C and NGC 6440D. For the isolated pulsar NGC 6440C, we searched for planets using a Markov Chain Monte Carlo technique. We find evidence for significant unmodelled variations but they cannot be well modelled as planets nor as part of a power-law red-noise process. Studies of the eclipses of the "Redback" pulsar NGC 6440D at two different frequency bands reveal a frequency dependence with longer and asymmetric eclipses at lower frequencies (962-1283 MHz).
description: 14 pages, 10 figures, 4 tables. Accepted for publication in MNRAS
title: The Cognitive and Behavioral Effects of Acute Ethanol Exposure and Acute Ethanol Withdrawal
Creators: name: Golden, Natasha LaVerne
Publisher: name: Old Dominion University
publisherIdentifier: https://ror.org/04zjtrb98
publisherIdentifierScheme: ROR
Year: 2009

description: Although ethanol, in the form of alcoholic beverages, is one of the most widely used and abused drugs, little research has focused on cognitive and behavioral impairments relating to acute ethanol withdrawal. The primary purpose of the current study was to determine the effects of acute ethanol withdrawal on cognition and behavior using the radial arm maze (RAM) and the elevated plus maze (EPM). The secondary purpose of the study was to explore the immediate effects of acute ethanol exposure using a repeated acquisition version of the RAM. Sixteen male, Long-Evans rats were used for the study. For acute ethanol testing, each subject received counterbalanced doses of 1.0g/kg ETOH or an equivalent volume of saline. The RAM was used for testing of acute effects. During the second phase of the study, the delayed effects at 2.0g/kg ETOH or saline were observed at four hours post-injection using the RAM, and at eight hours post-injection using both the RAM and EPM. During the final phase of the study, the delayed effects were observed at the 3.0g/kg ETOH dose or saline at twelve hours post injection using the RAM and EPM. All data were analyzed by means of a within subjects ANOVA. Subjects showed a decrement in learning the contingencies of the RAM after acute administration of ethanol. Significant impairments were seen after withdrawal from 3g/kg of ethanol, and a tendency for impairments in locomotor activity occurred after withdrawal from 2g/kg of ethanol. Although it appears that the delayed effects of ethanol impair locomotor activity, it did not impair the ability for subjects to learn the new contingencies of the maze. Although maze-familiar, the rats showed evidence of withdrawal-related anxiety and a decrease in locomotor activity atter withdrawal from 3g/kg of ethanol.
Pollen analysis of sediments from Moor Farm, Staines Moor
Creators: name: Keith-Lucas, Michael
Publisher: name: Archaeology Data Service
Year: 2001

description: Surrey Archaeological Collections, 87, 85-93
description: Reports on the analysis of two peat profiles sampled during an archaeological evaluation. The Early Neolithic elm decline is not marked, suggesting that Neolithic culture had little impact in the vicinity. The major clearance of wood seems to have occurred well into the Bronze Age. Subsequently the local environment has been comparatively stable, with minor fluctuations reflecting episodes of more and less intensive management of the floodplains.
The East India Company and gunpowder production in England
Creators: name: Fairclough, K R
Publisher: name: Archaeology Data Service
Year: 2001

description: Surrey Archaeological Collections, 87, 95-111
description: Discusses the Company's production of gunpowder at Thorpe and Chilworth in Surrey, the political problems that this production involved, and the political changes which saw the Company withdraw from the industry in 1636 but saw Chilworth emerge as the most important production site in England.
The Cordwell family, gunpowder producers at Chilworth 1636-1650
Creators: name: Fairclough, K R
Publisher: name: Archaeology Data Service
Year: 2001

description: Surrey Archaeological Collections, 87, 113-126
description: Recounts events following Samuel Cordwell's take-over of the East India Company gunpowder mills, when they first emerged as the most important gunpowder production site in England.
Predicting the black hole mass and correlations in X-ray reverberating AGN using neural networks
Creators: name: Chainakun, P.
name: Fongkaew, I.
name: Hancock, S.
name: Young, A. J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We develop neural network models to predict the black hole mass using 22 reverberating AGN samples in the XMM-Newton archive. The model features include the fractional excess variance ($F_{\rm var}$) in 2-10 keV band, Fe-K lag amplitude, 2-10 keV photon counts and redshift. We find that the prediction accuracy of the neural network model is significantly higher than what is obtained from the traditional linear regression method. Our predicted mass can be confined within $\pm (2$-5) per cent of the true value, suggesting that the neural network technique is a promising and independent way to constrain the black hole mass. We also apply the model to 21 non-reverberating AGN to rule out their possibility to exhibit the lags (some have too small mass and $F_{\rm var}$, while some have too large mass and $F_{\rm var}$ that contradict the $F_{\rm var}$-lag-mass relation in reverberating AGN). We also simulate 3200 reverberating AGN samples using the multi-feature parameter space from the neural network model to investigate the global relations if the number of reverberating AGN increases. We find that the $F_{\rm var}$-mass anti-correlation is likely stronger with increasing number of newly-discovered reverberating AGN. Contrarily, to maintain the lag-mass scaling relation, the tight anti-correlation between the lag and $F_{\rm var}$ must preserve. In an extreme case, the lag-mass correlation coefficient can significantly decrease and, if observed, may suggest the extended corona framework where their observed lags are more driven by the coronal property rather than geometry.
description: 15 pages, 12 figures, 4 tables, accepted for publication in MNRAS
title: 01_0706
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
Hydrodynamics of warps in the local model of astrophysical discs
Creators: name: Ogilvie, Gordon I.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We show how the local approximation of astrophysical discs, which is the basis for the well known model of the shearing box, can be used to study many aspects of the dynamics of warped discs. In the local model, inclination of the orbit of a test particle with respect to the reference orbit corresponds to a vertical oscillation of the particle at the orbital frequency. Warping of a disc corresponds to a locally axisymmetric corrugation of the midplane of the disc that oscillates vertically at the orbital frequency, while evolution of the warp corresponds to a modulation of the complex amplitude of the vertical oscillation. We derive a conservation law for this amplitude that is the local equivalent of the conservation of angular momentum and therefore governs the evolution of the warp. For lengthscales that are long compared to the vertical scaleheight of the disc, the known non-resonant and resonant regimes of warp dynamics, including the diffusive and wavelike regimes of Keplerian discs, occur in the local model in the same way as in a global view of warped discs.
description: 18 pages, 2 figures, accepted version to be published in MNRAS
The extended HI halo of NGC 4945 as seen by MeerKAT
Creators: name: Ianjamasimanana, Roger
name: Koribalski, B. S.
name: Józsa, Gyula I. G.
name: Kamphuis, Peter
name: de Blok, W. J. G.
name: Kleiner, Dane
name: Namumba, Brenda
name: Carignan, Claude
name: Dettmar, Ralf-Jürgen
name: Serra, Paolo
name: Smirnov, Oleg M.
name: Thorat, Kshitij
name: Hugo, Benjamin V.
name: Ramaila, Athanaseus J. T.
name: Maina, Eric
name: Maccagni, Filippo M.
name: Makhathini, Sphesihle
name: Andati, Lexy A. L.
name: Molnár, Dániel Cs.
name: Perkins, Simon
name: Loi, Francesca
name: Ramatsoku, Mpati
name: Atemkeng, Marcellin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Observations of the neutral atomic hydrogen (HI) in the nuclear starburst galaxy NGC 4945 with MeerKAT are presented. We find a large amount of halo gas, previously missed by HI observations, accounting for 6.8% of the total HI mass. This is most likely gas blown into the halo by star formation. Our maps go down to a $3σ$ column density level of $5\times10^{18} cm^{-2}$ . We model the HI distribution using tilted-ring fitting techniques and find a warp on the galaxy's approaching and receding sides. The HI in the northern side of the galaxy appears to be suppressed. This may be the result of ionisation by the starburst activity in the galaxy, as suggested by a previous study. The origin of the warp is unclear but could be due to past interactions or ram pressure stripping. Broad, asymmetric HI absorption lines extending beyond the HI emission velocity channels are present towards the nuclear region of NGC 4945. Such broad lines suggest the existence of a nuclear ring moving at a high circular velocity. This is supported by the clear rotation patterns in the HI absorption velocity field. The asymmetry of the absorption spectra can be caused by outflows or inflows of gas in the nuclear region of NGC 4945. The continuum map shows small extensions on both sides of the galaxy's major axis that might be signs of outflows resulting from the starburst activity.
description: 20 pages, 15 figures, 3 tables, accepted for publication in MNRAS
Numerical analysis of processes for the formation of moonlets confining the arcs of Neptune
Creators: name: Madeira, Gustavo
name: Winter, Silvia Maria Giuliatti
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The arcs of Neptune - Fraternité, Egalité, Liberté, and Courage - are four incomplete rings immersed in the Adams ring. A recent confinement model for the arcs proposes that the structures are azimuthally confined by four co-orbital moonlets. In this work, we intend to approach some points related to the dynamics of co-orbital moonlets and suggest a model for their formation. We study the equilibrium configurations for 1+N co-orbital satellites under the 42:43 Lindblad resonance with Galatea. We obtained three distinct configurations with 1+3 and 1+4 moonlets able to confine and reproduce the location of the arcs. The moonlets' formation is analysed by the disruption of an ancient body at a Lagrangian point of a moon. The disruption fragments spread out in horseshoe orbits and collide to form moonlets, which reach an equilibrium configuration due to a non-conservative effect. In such a scenario, the arcs likely formed through a mixture of different processes, with impacts between disruption outcomes and meteoroid impacts with the moonlets being possibilities.
description: Accepted for publication in Monthly Notices of the Royal Astronomical Society Main Journal (MNRAS)
Symmetry effects on the static and dynamic properties of coupled magnetic oscillators
Creators: name: Patchett, J P.
name: Drouhin, M.
name: Liao, J. W.
name: Soban, Z.
name: Petit, D.
name: Haigh, J.
name: Roy, P.
name: Wunderlich, J.
name: Cowburn, R. P.
name: Ciccarelli, C.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The effect of symmetry on the resonance spectra of antiferromagnetically coupled oscillators has attracted new interest with the discovery of symmetry-breaking induced anti-crossings. Here, we experimentally characterise the resonance spectrum of a synthetic antiferromagnet Pt/CoFeB/Ru/CoFeB/Pt, where we are able to independently tune the effective magnetisation of the two coupled magnets. To model our results we apply the mathematical methods of group theory to the solutions of the Landau Lifshitz Gilbert equation. This general approach, usually applied to quantum mechanical systems, allows us to identify the main features of the resonance spectrum in terms of symmetry breaking and to make a direct comparison with crystal antiferromagnets.
Helium line emissivities for nebular astrophysics
Creators: name: Del Zanna, G.
name: Storey, P. J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the results of several collisional-radiative models describing optically-thin emissivities of the main lines in neutral helium formed by recombination, for a grid of electron temperatures and densities, typical of H II regions and Planetary Nebulae. Accurate emissivities are required for example to measure the helium abundance in nebulae and as a consequence its primordial value. We compare our results with those obtained by previous models, finding significant differences, well above the target accuracy of one percent. We discuss in some detail our chosen set of atomic rates and the differences with those adopted by previous models. The main differences lie in the treatment of electron and proton collision rates and we discuss which transitions are least sensitive to the choice of these rates and therefore best suited to high precision abundance determinations. We have focused our comparisons on the case B approximation where only He and He$^+$ are considered, but also present results of full models including the bare nuclei, photo-excitation and photo-ionisation and either black-body or observed illuminating spectrum in the case of the Orion nebula, to indicate which spectral lines are affected by opacity. For those transitions, accurate radiative transfer calculations should be performed. We provide tables of emissivities for all transitions within $n \le 5$ and all those between the $n \le 5$ and $n' \le 25$ states, in the log $T_{\rm e}$ [K]=10$^{3.0(0.1)4.6}$ and log $N_{\rm e}$ [cm$^{-3}$]=10$^{2(0.5)6}$ ranges, and a FORTRAN code to interpolate to any $T_{\rm e}, N_{\rm e}$ within these ranges.
description: Accepted for publication
Non-Hermitian laser arrays with tunable phase locking
Creators: name: Longhi, Stefano
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Inspired by the idea of non-Hermitian spectral engineering and non-Hermitian skin effect, a novel design for stable emission of coupled laser arrays with tunable phase locking and strong supermode competition suppression is suggested. We consider a linear array of coupled resonators with asymmetric mode coupling displaying the non-Hermitian skin effect and show that, under suitable tailoring of complex frequencies of the two edge resonators, the laser array can stably emit in a single extended supermode with tunable phase locking and with strong suppression of all other skin supermodes. The proposed laser array design offers strong robustness against both structural imperfections of the system and dynamical instabilities typical of semiconductor laser arrays.
description: 5 pages, 4 figures, to appear in Optics Letters
Long term radio monitoring of the neutron star X-ray binary Swift J1858.6-0814
Creators: name: Rhodes, L.
name: Fender, R. P.
name: Motta, S. E.
name: Eijnden, J. van den
name: Williams, D. R. A.
name: Bright, J. S.
name: Sivakoff, G. R.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present the results of our long term radio monitoring campaign at 1.3GHz (MeerKAT) and 15.5GHz (Arcminute Microkelvin Imager - Large Array, AMI-LA) for the outburst of the recently discovered neutron star X-ray binary Swift J1858.6-0814. Throughout the outburst, we observe radio emission consistent with a quasi-persistent, self-absorbed jet. In addition, we see two flares at MJD 58427 and 58530. The second flare allows us to place constraints on the magnetic field and minimum energy of the jet at 0.2G and 5x10^37erg, respectively. We use the multi-frequency radio data in conjunction with data from Swift-BAT to place Swift J1858.6-0814 on the radio/X-ray correlation. We find that the quasi-simultaneous radio and BAT data makes Swift J1858.6-0814 appears to bridge the gap in the radio/X-ray plane between atoll and Z sources. Furthermore, AMI-LA observations made whilst Swift J1858.6-0814 was in the soft state have allowed us to show that the radio emission during the soft state is quenched by at least a factor of four.
description: 11 pages, 6 figures. Accepted by MNRAS
PyATMOS: A Scalable Grid of Hypothetical Planetary Atmospheres
Creators: name: Chopra, Aditya
name: Bell, Aaron C.
name: Fawcett, William
name: Talebi, Rodd
name: Angerhausen, Daniel
name: Baydin, Atılım Güneş
name: Berea, Anamaria
name: Cabrol, Nathalie A.
name: Kempes, Christopher
name: Mascaro, Massimo
Publisher: name: ETH Zurich
Year: 2023
Subjects: Earth and Planetary Astrophysics (astro-ph.EP)
Instrumentation and Methods for Astrophysics (astro-ph.IM)
FOS: Physical sciences

description: Cloud computing offers an opportunity to run compute-resource intensive climate models at scale by parallelising model runs such that datasets useful to the exoplanet community can be produced efficiently. To better understand the statistical distributions and properties of potentially habitable planetary atmospheres we implemented a parallelised climate modelling tool to scan a range of hypothetical atmospheres.Starting with a modern day Earth atmosphere, we iteratively and incrementally simulated a range of atmospheres to infer the landscape of the multi-parameter space, such as the abundances of biological mediated gases (\ce{O2}, \ce{CO2}, \ce{H2O}, \ce{CH4}, \ce{H2}, and \ce{N2}) that would yield `steady state' planetary atmospheres on Earth-like planets around solar-type stars. Our current datasets comprises of \numatmospheres simulated models of exoplanet atmospheres and is available publicly on the NASA Exoplanet Archive. Our scalable approach of analysing atmospheres could also help interpret future observations of planetary atmospheres by providing estimates of atmospheric gas fluxes and temperatures as a function of altitude. Such data could enable high-throughput first-order assessment of the potential habitability of exoplanetary surfaces and sepcan be a learning dataset for machine learning applications in the atmospheric and exoplanet science domain.
description: arXiv
AGN variability (or past accretion history) on >10⁴ yr timescales
Creators: name: Treister, Ezequiel
name: Finlez, Carolina
name: Bauer, Franz
name: Keel, William
name: Koss, Michael
name: Venturi, Giacomo
name: Sartori, Lia
name: Nagar, Neil
name: Maksym, W. Peter
name: Parra, Miguel
Publisher: name: ETH Zurich
Year: 2023

description: American Astronomical Society Meeting Abstracts, 55 (2)
description: AAS241 Abstracts
Student Engagement and Success across the United States and Australia
Creators: name: Aizpurua, Michelle De
Publisher: name: Monash University
Year: 2016
Subjects: subject: 130103 Higher Education
subject: FOS: Educational sciences
subject: Library and Information Studies
subject: FOS: Media and communications

description: Published for the Global Postcards column in the International Information and Library Review.
Based on theories from Professor George D. Kuh's keynote presentation at Monash University in 2015, this article discusses the similar challenges that the United States and Australia face in student engagement and success, as well as the differences between these two contexts.
The author considers 'High Impact Practices' as a means to achieve this engagement and success, and how Monash Law Library has been utilising this concept in their teaching.
Moated Site near Moat Farm, Hookwood, Charlwood
Creators: name: Turner, D J
Publisher: name: Archaeology Data Service
Year: 2008

description: Surrey Archaeological Collections, 71, 57-87
description: TQ 266447. The main result of the excavations was the recovery of a corpus of pottery with an arguably restricted date range, late 13th to mid-14th century. Tentative inferences are made from post-medieval documentation and topographical evidence. Au(adp)