cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Coronene and pyrene (5, 7)-member ring defects: Infrared spectra, energetics and alternative formation pathways
Creators: name: Oettl, Silvia
name: Huber, Stefan E.
name: Kimeswenger, Stefan
name: Probst, Michael
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: PAHs are known to be one of the carriers of the ubiquitous aromatic IR bands. The IR spectra of many objects show IR emission features derived from PAH molecules of different size. Still some of the characteristics of the emitting population remain unclear. The emission bands show details which cannot be explained so far. These unidentified IR features require further laboratory and observational investigations. We present a theoretical study of the IR spectra of PAHs containing (5,7)-member ring defects, focusing on pyrene and coronene. Using density functional theory, we investigate the effects of such defects on the IR spectra of pyrene and coronene and their cations and anions. In addition, we explore parts of the potential energy surface of the neutral species and discuss alternative formation pathways. The addition of (5,7)-membered ring defects in pyrene and coronene results in a change of the IR spectra, both molecules lose their typical spectroscopic signature. We find shifts in the positions of the band as well as different intensities and a rise in the number of features. The boundaries in terms of the size of the PAHs exhibiting a (5,7)-membered ring defect are studied and shown. Investigation of the minimal energy pathway leads to a result of 8.21 eV for pyrene and 8.41 eV for coronene as minimum activation barriers for the transformation from ground state to defected state. Whereas pyrene retains some of its symmetry due to the symmetry exhibited by the Stone-Wales defect itself, coronene loses much more of its symmetry. The formation of these (5,7)-ring defects in PAHs may be well supported in AGB stars or PNe. Those environments strongly enable the transition from the ground state to the defect state. Therefore the knowledge of the IR spectra of these molecules will support future investigations aiming for a thorough understanding of the unidentified IR emission bands.
description: 8 pages, 9 figures, accepted for publication in A&A
Three Dimensional Myocardial Deformation and Diagnosis of Stable Coronary Artery Disease
Creators: name: (:Unkn) Unknown
Publisher: name: Universita' degli Studi di Salerno
Year: 2015
Subjects: Coronary Artery Disease
Echocardiography
Three Dimensional Transthoracic Echocardiography
Ischemic Heart Disease

description: To date, only one third of patients, with stable angina, undergoing coronary angiography demonstrated obstructive coronary artery disease (CAD). Thus, identifying high sensitivity and specificity, low-cost, non invasive tests is crucial. Here we present the case of a patient, at a high risk of CAD, undergoing coronary angiography because of positive exercise test and stress imaging results, with non obstructive coronary artery disease at angiography, confirmed by FFR. Interestingly, 3D speckle tracking, performed before angiography, assessed normal left ventricle deformation, predicting the absence of severe coronary artery lesions.
Study of the X-ray Pulsar IGR J21343+4738 based on NuSTAR, Swift, and SRG data
Creators: name: Gorban, A. S.
name: Molkov, S. V.
name: Lutovinov, A. A.
name: Semena, A. N.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present the results of our study of the X-ray pulsar IGR J21343+4738 based on NuSTAR, Swift, and SRG observations in the wide energy range 0.3 - 79 keV. The absence of absorption features in the energy spectra of the source, both averaged and phase-resolved ones, has allowed us to estimate the upper and lower limits on the magnetic field of the neutron star in the binary system, $B<2.5\times10^{11}$G and $B>3.4 \times 10^{12}$G, respectively. The spectral and timing analyses have shown that IGR J21343+4738 has all properties of a quasi-persistent X-ray pulsar with a pulsation period of $322.71\pm{0.04}$s and a luminosity $L_{x} \simeq3.3$ $\times10^{35}$erg s$^{-1}$. The analysis of the long-term variability of the object in X-rays has confirmed the possible orbital period of the binary system $\sim 34.3$ days previously detected in the optical range.
description: 8 pages, 4 figures, 1 table
A Bronze Age and Early Iron Age landscape at Harlestone Quarry, Northampton
Creators: name: Chapman, Andy
name: Clarke, Jason
name: Foard-Colby, Anne
name: Lichtenstein, Laszlo
Publisher: name: Archaeology Data Service
Year: 2020

description: Northamptonshire Archaeology, 39, 37-67
description: At Harlestone Quarry five areas were excavated in advance of ironstone extraction between 2006 and 2014, a total area of 4.1ha. This took in part of a Bronze Age to early Iron Age landscape, uncluttered by later activity apart from medieval field boundaries and furrows of the former field system. A single pit and residual charcoal from a pit alignment have been radiocarbon dated to the early Bronze Age. A system of shallow linear boundary ditches and a curvilinear ditch, perhaps forming part of a large enclosure, are undated but are most likely to date to the late Bronze Age. A scatter of pits, largely within the enclosure, contained domestic material including pottery and hearth debris. Two pits contained pyramidal fired clay loomweights, and one of these pits has been radiocarbon dated to the late Bronze Age. A pit alignment lay to the south of the ditched boundaries. It is undated but probably had an origin in the early Iron Age. An area to the south of the pit alignment contained two possible four-post structures and scattered pits containing late Bronze Age to early Iron Age pottery. To the north, a loose cluster of pits included another possible four-post structure and an outlying pit has been radiocarbon dated to the end of the early Iron Age. To the east, beyond the excavated area, the pit alignment appears to terminate at a triple-ditched boundary system.
title: Comprendre pour accompagner
title: une démarche méthodologique pour une analyse du discours au sein d'une famille où un membre est autiste
titleType: Subtitle
Creators: name: Loria, Barbara
Publisher: name: Unknown
Year: 0
Subjects: subject: autisme
subject: analyse qualitative de contenu
subject: discours émotionnel
subject: discours scientifique
subject: discours naïf
subject: discours rationnel

description: L’objectif de ce travail est celui de proposer une méthodologie utile aux opérateurs sociaux qui doivent à la fois écouter et accompagner les différents membres d’une famille qui se rapprochent du monde du handicap. En partant d’un cas particulier, celui d’une famille ayant un membre autiste, nous allons analyser, à l’aide de l’analyse qualitative de contenu, les discours élaborés par chaque membre de la famille en nous servant d’une filtre à quatre pôles (discours émotionnel, discours scientifique, discours naïf, discours scientifique) qui nous permettra de retenir les tendances discursives significatives de chaque individu. Le repérage des axes de compréhension des discours tenus par les membres de la famille est une phase primordiale du travail d’accompagnement des opérateurs sociaux. Quelles sont les difficultés que chaque membre rencontre? Quel est le regard que chaque membre porte sur le handicap? Quels sont les éléments discursifs utiles à l’accompagnement ? Le discours se révèle ainsi comme un outil d’expression précieux qui permet aux professionnels du domaine de réfléchir à propos de la production de sens que chaque membre formule. C’est autour de ce pivot qui se constitue lentement un dispositif d’accompagnement spécifique aux besoins des usagers. L’analyse qualitative de contenu sera aussi utile pour réfléchir dans une perspective d’évolution du discours afin de comprendre si à partir des connaissances nouvelles sur le handicap en question, le discours subit des variations et donc si le regard que l’on pose sur le handicap affecte l’élaboration du discours. Ce mémoire propose une démarche méthodologique particulière qui pourra, peut-être, être utile aux opérateurs sociaux pour l’élaboration d’un projet de prise en charge familiale apte à faciliter la transition vers la « reconnaissance » (dans le sens de noter mais aussi dans celui d’accepter) et la gestion du handicap.
description: Mémoire professionnel, Master of arts en sciences et pratiques de l'éducation
Modeling the [Fe II]λ1.644μm outflow and comparison with H$_2$ and H$^+$ kinematics in the inner 200 pc of NGC 1068
Creators: name: Barbosa, F. K. B.
name: Storchi-Bergmann, T.
name: McGregor, P.
name: Vale, T. B.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We map the kinematics of the inner (200 pc) narrow-line region (NLR) of the Seyfert 2 galaxy NGC 1068 using the instrument NIFS and adaptative optics at the Gemini North Telescope. Channel maps and position-velocity diagrams are presented at a spatial resolution of $\sim$ 10 pc and spectral resolution $\sim$ 5300 in the emission lines [Fe II] λ 1.644 μm, H$_2$ λ 2.122 μm and Brγ. The [Fe II] emission line provides a better coverage of the NLR outflow than the previously used [O III] λ 5007 emission line, extending beyond the area of the bi-polar cone observed in Brγ and [O III]. This is mainly due to the contribution of the redshifted channels to the NE of the nucleus, supporting its origin in a partial ionized zone with additional contribution from shocks of the outflowing gas with the galactic disc. We modeled the kinematics and geometry of the [Fe II] emitting gas finding good agreement with the data for outflow models with conical and lemniscate (or hourglass) geometry. We calculate a mass outflow rate $1.9^{+1.9}_{-0.7}$ M$_{\odot}~$yr$^{-1}$ but a power for the outflow of only 0.08% L$_{Bol}$. The molecular (H$_2$) gas kinematics is completely distinct from that of [Fe II] and Brγ, showing radial expansion in an off-centered $\sim$ 100 pc radius ring in the galaxy plane. The expansion velocity decelerates from $\sim$ 200 km/s in the inner border of the ring to approximately zero at the outer border where our previous studies found a 10 Myr stellar population.
TOI-1859b: A 64-Day Warm Jupiter on an Eccentric and Misaligned Orbit
Creators: name: Dong, Jiayin
name: Wang, Songhu
name: Rice, Malena
name: Zhou, George
name: Huang, Chelsea X.
name: Dawson, Rebekah I.
name: Stefánsson, Gudmundur K.
name: Halverson, Samuel
name: Kanodia, Shubham
name: Mahadevan, Suvrath
name: McElwain, Michael W.
name: Alvarado-Montes, Jaime A.
name: Ninan, Joe P.
name: Robertson, Paul
name: Roy, Arpita
name: Schwab, Christian
name: Logsdon, Sarah E.
name: Terrien, Ryan C.
name: Collins, Karen A.
name: Srdoc, Gregor
name: Sefako, Ramotholo
name: Laloum, Didier
name: Latham, David W.
name: Bieryla, Allyson
name: Dalba, Paul A.
name: Dragomir, Diana
name: Villanueva, Steven
name: Howell, Steve B.
name: Ricker, George R.
name: Seager, S.
name: Winn, Joshua N.
name: Jenkins, Jon M.
name: Shporer, Avi
name: Rapetti, David
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Warm Jupiters are close-in giant planets with relatively large planet-star separations (i.e., $10< a/R_\star <100$). Given their weak tidal interactions with their host stars, measurements of stellar obliquity may be used to probe the initial obliquity distribution and dynamical history for close-in gas giants. Using spectroscopic observations, we confirm the planetary nature of TOI-1859b and determine the stellar obliquity of TOI-1859 to be $λ= 38.9^{+2.8}_{-2.7}°$ relative to its planetary companion using the Rossiter-McLaughlin effect. TOI-1859b is a 64-day warm Jupiter orbiting around a late-F dwarf and has an orbital eccentricity of $0.57^{+0.12}_{-0.16}$, inferred purely from transit light curves. The eccentric and misaligned orbit of TOI-1859b is likely an outcome of dynamical interactions, such as planet-planet scattering and planet-disk resonance crossing.
description: 15 pages, 7 figures, 1 table; accepted to ApJL
Polyakov loop fluctuations and deconfinement in the limit of heavy quarks
Creators: name: Lo, Pok Man
name: Friman, Bengt
name: Redlich, Krzysztof
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We explore the influence of heavy quarks on the deconfinement phase transition in an effective model for gluons interacting with dynamical quarks in color SU(3). With decreasing quark mass, the strength of the explicit breaking of the Z(3) symmetry grows and the first-order transition ends in a critical endpoint. The nature of the critical endpoint is examined by studying the longitudinal and transverse fluctuations of the Polyakov loop, quantified by the corresponding susceptibilities. The longitudinal susceptibility is enhanced in the critical region, while the transverse susceptibility shows a monotonic behavior across the transition point. We investigate the dependence of the critical endpoint on the number of quark flavors at vanishing and finite quark density. Finally we confront the model results with lattice calculations and discuss a possible link between the hopping parameter and the quark mass.
description: 8 pages, 9 figures
A Middle Iron Age settlement at Banbury Lane, King's Sutton
Creators: name: Ingham, David
Publisher: name: Archaeology Data Service
Year: 2020

description: Northamptonshire Archaeology, 39, 69-84
description: Albion Archaeology carried out an excavation in 2013 at Banbury Lane, King's Sutton, in advance of residential development. The earliest activity comprised a late Neolithic Grooved ware vessel, probably a secondary deposit into one of two undated boundary ditches, which may have been part of a middle/late Bronze Age field system. A middle Iron Age settlement comprised a roundhouse, small enclosures, four-post structures and pits, which produced moderately sized assemblages of pottery and animal bone. The settlement may have had a primarily pastoral economy and is likely to have been used over the course of two to three centuries, probably coming into use in the 3rd century BC, as indicated by radiocarbon dating of two early dog burials, and falling out of use in the late Iron Age, probably the 1st century BC. Subsequent activity was limited to medieval ridge and furrow cultivation and two medieval and/or post-medieval buildings, with further associated agricultural remains.
MPEC 2023-U240 : 2019 UA8
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Two-photon double ionization with finite pulses: Application of the virtual sequential model to helium
Creators: name: Chattopadhyay, Siddhartha
name: Marante, Carlos
name: Schneider, Barry
name: Argenti, Luca
Publisher: name: arXiv
Year: 2023
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: As a step toward the full \emph{ab-initio} description of two-photon double ionization processes, we present a finite-pulse version of the virtual-sequential model for polyelectronic atoms. The model relies on the \emph{ab initio} description of the single ionization scattering states of both the neutral and ionized target system. As a proof of principle and a benchmark, the model is applied to the helium atom using the {\tt NewStock} atomic photoionization code. The results of angularly integrated observables, which are in excellent agreement with existing TDSE (time-dependent Schrödinger equation) simulations, show how the model is able to capture the role of electron correlation in the non-sequential regime, and the influence of autoionizing states in the sequential regime, at a comparatively modest computational cost. The model also reproduces the two-particle interference with ultrashort pulses, which is within reach of current experimental technologies. Furthermore, the model shows the modulation of the joint energy distribution in the vicinity of autoionizing states, which can be probed with extreme-ultraviolet pulses of duration much longer than the characteristic lifetime of the resonance. The formalism discussed here applies also to polyelectronic atoms and molecules, thus opening a window on non-sequential and sequential double ionization in these more complex systems.
description: 10 figures
title: Intégration scolaire des élèves ayant un TSA
title: Quelles sont les attitudes des enseignants réguliers vis à-vis de l’intégration scolaire des élèves ayant un trouble du spectre autistique (TSA) ?
titleType: Subtitle
Creators: name: Vuillermoz, Aurélie
name: Poiret, Maïlyss
Publisher: name: Unknown
Year: 0
Subjects: subject: Intégration scolaire
subject: Inclusion scolaire
subject: Attitudes
subject: Enseignants réguliers
subject: Élève ayant un Trouble du Spectre Autistique (TSA)
subject: Classe régulière

description: Depuis de nombreuses années l’intégration scolaire est un sujet de controverse. Dans un contexte vaudois en évolution vers une école pour tous, nous nous sommes interrogées sur les attitudes des enseignants face à ce changement. En effet, celles-ci sont un gage de réussite dans l’intégration scolaire d’élèves à besoins spécifiques. De plus, il semble que les élèves ayant un TSA sont régulièrement intégrés en classe ordinaire. Or, ces élèves semblent être un défi à l’intégration scolaire en vue de leurs difficultés comportementales et sociales. C’est pourquoi, nous nous somme questionnées sur les attitudes des enseignants réguliers vaudois vis-à-vis de l’intégration scolaire des élèves ayant un TSA. Dans le but d’évaluer globalement leurs attitudes à l’égard d’une telle intégration scolaire, nous avons élaboré un questionnaire ORI-TSA. Celui-ci comporte une adaptation des items ORI de Sermier Dessemontet, Benoit et Bless (2011), ainsi qu’un questionnaire sociodémographique. Par la suite, nous l’avons transmis à tous les enseignants réguliers de deux établissements vaudois. À l’issue des résultats, nous avons pu décrire des attitudes plutôt négatives envers l’intégration scolaire des élèves ayant un TSA. En outre, il semble que les enseignants réguliers soient plutôt en accord avec le principe d’intégration scolaire de ces élèves, mais moins concernant sa mise en pratique. Pour conclure, nous estimons qu’une étude similaire à plus grande échelle serait pertinente en vue de notre faible taux de participation. En outre, nous nous interrogeons sur les raisons de ces attitudes plutôt négatives à l’égard de l’intégration scolaire de ces élèves. La perspective d’un prolongement de notre recherche semble donc nécessaire.
description: Mémoire professionnel, Bachelor of arts en enseignement pour les degrés préscolaire et primaire
Late Iron Age settlement and a medieval windmill north of Brick Kiln Road, Raunds
Creators: name: Simmonds, Carol
Publisher: name: Archaeology Data Service
Year: 2020

description: Northamptonshire Archaeology, 39, 135-153
description: Excavation on land north of Brick Kiln Road, Raunds uncovered a late Iron Age unenclosed farmstead. The domestic area included a roundhouse ring ditch and two ancillary ring ditches. A separate livestock zone comprised a much maintained rectangular enclosure and field system. The ring ditches and enclosure went out of use sometime before AD100 although a linear boundary ditch survived longer. In the medieval period the site was under plough and lay near the parish boundary of Raunds and Ringstead. The late Iron Age boundary was respected into the medieval period, with a headland in roughly the same location, with a medieval post mill located on the headland. This post mill ceased to be used before the 18th century as it does not appear on the historic maps. Another nearby post mill trial trenched in the 1990s is also described, and comparison is made with other excavated examples in Northamptonshire.
QCD radiation in WH and WZ production and anomalous coupling measurements
Creators: name: Campanario, Francisco
name: Roth, Robin
name: Zeppenfeld, Dieter
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We study QCD radiation for the WH and WZ production processes at the LHC. We identify the regions sensitive to anomalous couplings, by considering jet observables, computed at NLO QCD with the use of the Monte Carlo program VBFNLO. Based on these observations, we propose the use of a dynamical jet veto. The dynamical jet veto avoids the problem of large logarithms depending on the veto scale, hence, providing more reliable predictions and simultaneously increasing the sensitivity to anomalous coupling searches, especially in the WZ production process.
description: 9 pages, 6 figures
RMTable2023 and PolSpectra2023: standards for reporting polarization and Faraday rotation measurements of radio sources
Creators: name: Van Eck, C. L.
name: Gaensler, B. M.
name: Hutschenreuter, S.
name: Livingston, J.
name: Ma, Y. K.
name: Riseley, C. J.
name: Thomson, A. J. M.
name: Adebahr, B.
name: Basu, A.
name: Birkinshaw, M.
name: Ensslin, T. A.
name: Heald, G.
name: Mao, S. A.
name: McClure-Griffiths, N. M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Faraday rotation measures (RMs) have been used for many studies of cosmic magnetism, and in most cases having more RMs is beneficial for those studies. This has lead to development of RM surveys that have produced large catalogs, as well as meta-catalogs collecting RMs from many different publications. However, it has been difficult to take full advantage of all these RMs as the individual catalogs have been published in many different places, and in many different formats. In addition, the polarization spectra used to determine these RMs are rarely published, limiting the ability to re-analyze data as new methods or additional observations become available. We propose a standard convention for RM catalogs, RMTable2023, and a standard for source-integrated polarized spectra of radio sources, PolSpectra2023. These standards are intended to maximize the value and utility of these data for researchers and to make them easier to access. To demonstrate the use of the RMTable2023 standard, we have produced a consolidated catalog of 55 819 RMs collected from 42 published catalogs.
description: 44 pages, 5 figures, accepted by ApJS
Prediction of charmed-bottom pentaquarks in quark model
Creators: name: Yan, Ye
name: Wu, Yuheng
name: Huang, Hongxia
name: Ping, Jialun
name: Zhu, Xinmei
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Inspired by the fully heavy tetraquark states reported by the LHCb, ATLAS and CMS Collaborations, we perform a systemical investigation of the low-lying fully heavy pentaquark systems composed of charm and bottom quarks (anti-quark) in the chiral quark model. With the help of the channel-coupling, we obtain several fully heavy pentaquark candidates, which are $cccc\bar{b}$ and $bbbb\bar{c}$ systems with $J^P = 1/2^-$ and $3/2^-$, $cccb\bar{c}$, $bbbc\bar{b}$, $cccb\bar{b}$ and $bbbc\bar{c}$ systems with $J^P = 5/2^-$. The binding energies of these states are all below 10 MeV and the root mean square (RMS) are around 1.8 fm, which indicates that these states are likely to be molecular states. These predicted exotic states may provide new ideas for experimental searches and we expect more experimental and theoretical researches to study and understand the fully heavy states in future.
description: 12 pages, 3 figures
Experimental Satellite Quantum Communications
Creators: name: Vallone, Giuseppe
name: Bacco, Davide
name: Dequal, Daniele
name: Gaiarin, Simone
name: Luceri, Vincenza
name: Bianco, Giuseppe
name: Villoresi, Paolo
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum Communications on planetary scale require complementary channels including ground and satellite links. The former have progressed up to commercial stage using fiber-cables, while for satellite links, the absence of terminals in orbit has impaired theirs development. However, the demonstration of the feasibility of such links is crucial for designing space payloads and to eventually enable the realization of protocols such as quantum-key-distribution (QKD) and quantum teleportation along satellite-to-ground or intersatellite links. We demonstrated the faithful transmission of qubits from space to ground by exploiting satellite corner cube retroreflectors acting as transmitter in orbit, obtaining a low error rate suitable for QKD. We also propose a two-way QKD protocol exploiting modulated retroreflectors that necessitates a minimal payload on satellite, thus facilitating the expansion of Space Quantum Communications.
MPEC 2023-U241 : 2020 FM6
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
MPEC 2024-R352 : 2023 XC18
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Aluminium-26 from massive binary stars III. Binary stars up to core-collapse and their impact on the early Solar System
Creators: name: Brinkman, Hannah E.
name: Doherty, C. L.
name: Pignatari, M.
name: Pols, O. R.
name: Lugaro, M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Many of the short-lived radioactive nuclei that were present in the early Solar System can be produced in massive stars. In the first paper in this series (Brinkman et al. 2019), we focused on the production of $^{26}$Al in massive binaries. In our second paper (Brinkman et al. 2021), we considered rotating single stars, two more short-lived radioactive nuclei, $^{36}$Cl and $^{41}$Ca, and the comparison to the early Solar System data. In this work, we update our previous conclusions by further considering the impact of binary interactions. We used the MESA stellar evolution code with an extended nuclear network to compute massive (10-80 M$ _{\odot} $), binary stars at various initial periods and solar metallicity (Z=0.014), up to the onset of core collapse. The early Solar System abundances of $^{26}$Al and $^{41}$Ca can be matched self-consistently by models with initial masses $\geq$25 M$_{\odot}$, while models with initial primary masses $\geq$35 M$_{\odot}$ can also match $^{36}$Cl. Almost none of the models provide positive net yields for $^{19}$F, while for $^{22}$Ne the net yields are positive from 30 M$_{\odot}$ and higher. This leads to an increase by a factor of approximately 4 in the amount of $^{22}$Ne produced by a stellar population of binary stars, relative to single stars. Also, besides the impact on the stellar yields, our 10 M$_{\odot}$ primary star undergoing Case A mass-transfer ends its life as a white dwarf instead of as a core-collapse supernova. This demonstrates that binary interactions can also strongly impact the evolution of stars close to the supernova boundary.
description: 23 pages, 10 figures, 3 tables
Development of a versatile screening platform for the identification of small-molecule ligands for reader proteins of the post-translational methylation
Creators: name: Pisapia, Vincenzo
Publisher: name: Universita degli studi di Salerno
Year: 2021
Subjects: subject: CHIM/08 GEOCHIMICA E VULCANOLOGIA
subject: Epigentics
subject: Reader proteins
subject: Screening platform

description: 2018 - 2019
description: Covalent Post Translational Modifications (PTMs) of histone proteins are introduced and removed by the ‘writer’ and ‘eraser’ enzymes, respectively. These modifications are recognized by highly specific binding domains, the so-called ‘reader’ proteins, which are thought to mediate epigenetic signalling. Misregulation of these proteins often leads to abnormal gene expression patterns that are more frequently linked to human diseases. In comparison to writers and erasers, readers have been less intensively pursued so far as therapeutic targets, especially with regard to methylation. To date, different biochemical and biophysical techniques are reported to assess the binding of new putative modulators of methyl readers. Nevertheless, given the intrinsic limitations each technique encompasses, reliable data can be obtained using a combination of methods. .. [edited by the Author]
Measuring core rotation in γ Doradus stars from dips in the gravity-mode period spacing pattern
Creators: name: Barrault, Lucas
name: Bugnet, Lisa
name: Mathis, Stéphane
Publisher: name: Zenodo
Year: 2024

description: Asteroseismology provides unique tools to constrain the transport of angular momentum throughout stellar evolution, a major caveat in stellar modeling. Dips in the gravity-mode period spacing vs period diagram of γ Doradus stars, already proven to form from the chemical discontinuities in the radiative zone, were also shown to arise from the interaction of gravito-inertial modes in the radiative zone with pure inertial modes in the convective interior of these stars. The analysis of these mixed modes brings unprecedented insight into the convective interior. The inertial dip formation has been described by Tokuno & Takata (2022) and the Lorentzian shape of the dip is derived analytically for Kelvin modes with a solid body rotation. We aim to extend the formalism developed in this pioneering work to the case of a two-zone rotation profile, and investigate the detectability of such differential rotation inside γ Doradus stars. We solve the coupling equation numerically, which was further compared to an analytical derivation of the Lorentzian profile. We investigate the detectability of radial differential rotation in Kepler data. We show that, with an increasing differential rotation rate from the envelope to the core, the dip gets shifted to shorter periods, and gets deeper and narrower. Studying the dip structure and location in asteroseismic data might allow accessing radial differential rotation and better understand the transport of angular momentum in main-sequence stars.
Comment développer des compétences en calcul réfléchi par la mise en place d’une séquence mathématique s’appuyant sur un jeu : La clé des chiffres ?
Creators: name: Royer, Anne-Claire
Publisher: name: Unknown
Year: 0
Subjects: subject: Mathématiques
subject: Calcul réfléchi
subject: Recherche-action
subject: Jeu
subject: Champ conceptuel de l’addition
subject: Métacognition

description: J’ai mené une recherche-action sur l’enseignement du calcul réfléchi en 8p. J’ai utilisé deux supports : un jeu nommé La clé des chiffres et un portfolio. Mon but étant d’aider les élèves à trouver une manière efficace de résoudre des additions à trois termes composées de nombres à 3 chiffres, j’ai planifié une séquence d’enseignement sur l’apprentissage du calcul réfléchi. Elle se compose de différents moments tels que : découverte de la situation-problème, phase de calculs, mise en commun des procédures de calcul et institutionnalisation. La séquence d’enseignement se termine par un test significatif où l’élève utilise obligatoirement deux procédures de calcul pour chaque situation-problème. Dans ma séquence d’enseignement, j’ai dévolué la situation-problème aux élèves et j’ai insisté sur la métacognition. J’ai utilisé un jeu russe, que j’ai adapté, de manière à effectuer des choix de variables didactiques en fonction des objectifs fixés. Mon but est de développer par ce jeu de réelles compétences en calcul réfléchi chez les élèves, car il est adaptable et utilisable à tous les niveaux scolaires. J’encourage donc les enseignants à enseigner davantage le calcul réfléchi à leurs élèves, afin de consolider entre autres l’apprentissage des algorithmes en colonne, ce qui leur donnera de réelles chances dans leur scolarité future.
description: Mémoire professionnel, Bachelor of arts en enseignement pour les degrés préscolaire et primaire
title: 'Little vast rooms of undoing': exploring identity and embodiment through public toilet spaces
Creators: name: Blumenthal, Dara
Publisher: name: University of Kent
Year: 2023

description: This thesis is an exploration of sensory-embodied identity grounded in an empirical study of self-body experience of public toilet spaces, through which I challenge dominant conceptions of the 'individual' put forth by the Western philosophical tradition, social constructionism, and post-structuralism. Those conceptions of the self-body which tend to reproduce Cartesian dualism and apply reductionist, representationalist understandings to materiality, typically render the body into passive flesh, rending a materiality in need of constant shaping, management, and control. To challenge these understandings, I put forth a posthumanist, material-feminist approach which takes the body not as the mere basis of the self, but rather the Source of all experience, knowledge, and understanding. Rather than matter being understood as a stable thing or object directed by the rational subject or social power, this approach recognises the active, ongoing unfinished nature of materiality. This exploration is organised through Norbert Elias' concepts of homo clausus (closed person) and homines aperti (people opened) as frameworks for elucidating the experiences of individuals and introduces a Latin neologism - corpora infinita (boundless bodies) - to push his processoriented sociology further via a posthumanist-materialist lens. The empirical study focuses explicitly on individual experiences of sensory-embodiment through a universal daily practice within society: public toileting. My empirical research focuses on sex-segregated public toileting experiences of men, women, gender non-conforming, and trans individuals who have a range of sexual identities. The investigation takes the form of forty-five semistructured interviews and over two hundred 'toilet use' surveys, completed in New York City, London, and South East England. Through a meditation on socially contingent toileting habits and associated emotions, I suggest that experiences within public toilets expose the fissures of individual identity construction and understanding according to both homo clausus and homines aperti identity structures and, in doing so, reveal an opportunity for the reconceptualization of embodied identity as corpus infinitum.
Molecular dynamics simulation of growth of Cu nanoclusters from Cu-ions in a plasma
Creators: name: Tal, Alexey A.
name: Müger, E. Peter
name: Abrikosov, Igor A.
name: Brenning, Nils
name: Pilch, Iris
name: Helmersson, Ulf
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: A recently developed method of nanoclusters growth in a pulsed plasma is studied by means of molecular dynamics. A model that allows one to consider high-energy charged particles in classical molecular dynamics is suggested, and applied for studies of single impact events in nanoclusters growth. In particular, we provide a comparative analysis of the well-studied inert gas aggregation method and the growth from ions in a plasma. The importance to consider of the angular distribution of incoming ions in the simulations of the nanocluster growth is underlined. A detailed study of the energy transfer from the incoming ions to a nanocluster, as well as the diffusion of incoming ions on the cluster surface is carried out. Our results are important for understanding and control of the nanocluster growth process.
description: 6 pages, 8 figures
Late Iron Age to early Roman settlement and medieval settlement at Harley Way, Benefield
Creators: name: Finn, Claire
Publisher: name: Archaeology Data Service
Year: 2020

description: Northamptonshire Archaeology, 39, 155-180
description: An area of late Iron Age and Roman settlement, dated 1st-2nd century AD, comprised three large ditched enclosures constructed in two phases, as well as other features including at least one T-shaped corn-drying oven. There was also some activity in the 4th century AD. A second area contained parts of four plots that would have lain at the eastern end of the deserted medieval hamlet of Churchfield. Initial boundary ditches were constructed in the later 12th century. Two plots contained partially surviving building ranges in limestone, dated to the 13th to mid-14th centuries. A further plot inserted between the other two in the second half of the 14th century, contained a single building. The settlement had been abandoned by the end of the 14th century.
A new class of regular Black Holes in Einstein Gauss Bonnet gravity with localized sources of matter
Creators: name: Estrada, Milko
name: Aros, Rodrigo
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We provide a new regular black hole solution (RBH) in Einstein Gauss-Bonnet (EGB) gravity with localized sources of matter in the energy--momentum tensor. We determine the necessary constraints in order for the solution to be regular. Although we use a specific form for the energy density as a test of proof, these constraints could serve as a recipe for constructing several new RBH solutions in EGB gravity with localized sources. Due to that the usual first law of thermodynamics is not valid for RBH, so we rewrite the first law for EGB, which leads to correct values of entropy and volume. The size of the extremal black hole, whose temperature vanishes, becomes smaller for larger dimensions, whose radius could be of the order of the Planck units, thus the evaporation would stop once the horizon radius contracts up to a value close to the Planck length, which could be related with the apparition of quantum effects. Furthermore, the presence of matter fields in the energy--momentum tensor induces two phase transitions, where there are two regions of stability. This differs from the vacuum EGB solution, where the specific heat is always negative without phase transition as occurs in Schwarzschild black hole.
description: Accepted in Physics Letters B
title: Les TIC dans l'enseignement de la géographie au cycle 2
title: Évaluation d'une séquence d'enseignement-apprentissage par les élèves et l'enseignant
titleType: Subtitle
Creators: name: Anibal, Alexandre
Publisher: name: Unknown
Year: 0
Subjects: subject: MITIC
subject: parcours pédagogiques
subject: géographie
subject: Google Earth
subject: séquence d'enseignement/apprentissage
subject: cycle 2.

description: Ce mémoire de recherche a pour objectif d'évaluer une séquence d'enseignement apprentissage sur le logiciel Google Earth avec des élèves de 8P. Des parcours pédagogiques ont été créés sur la thématique des transports et de l'énergie et sont directement intégrés dans le logiciel. Une fiche de travail accompagne chacun des 5 travaux pratiques qui composent la séquence. Ces parcours ont été construits afin de permettre aux élèves d'acquérir les compétences en géographie prescrites par le PER. Dans le cadre de ces parcours, les élèves ont : • Posé un questionnement géographique • Rassemblé des informations géographiques • Organisé l'information géographique • Visualisé de l'information géographique • Répondu à des questions en géographie En début et en fin de séquence, les élèves ont complété un questionnaire d'autoévaluation en ligne. L'analyse des résultats m'a permis de mettre en évidence les avantages et les inconvénients de l'utilisation de Google Earth dans le cadre scolaire.
description: Mémoire professionnel, Master en enseignement pour le degré secondaire I
title: Gymnases en Suisse
title: Synthèse sur la durée des études
titleType: Subtitle
Creators: name: Farquet, Stéphanie
name: Fumeaux, Audrey
Publisher: name: Unknown
Year: 0
Subjects: subject: Durée des gymnases
subject: Historique
subject: RRM
subject: EVAMAR
subject: Projet 5
subject: Harmonisation

description: La durée des gymnases en Suisse est une problématique actuelle. La Suisse représente une hétérogénéité des systèmes importante, illustrée à l’aide d’un tableau au sein de notre recherche. Nous avons synthétisé toutes les informations sur la question de la structure des gymnases en Suisse et nous nous sommes interrogées sur ces disparités. A partir d’hypothèses sur les choix de la durée, nous avons essayé d’établir des constats sur les parcours gymnasiaux d’une durée de trois ou d’au moins quatre ans. L’étude d’EVAMAR II a permis de montrer qu’il n’est pas possible d’atteindre le même niveau de compétences dans tous les cantons suisses. Les étudiants se trouvent donc pénalisés dans leurs études tertiaires. Cette étude a pointé le doigt sur la nécessité de modifier certains points du règlement de 1995, et notamment celui de la durée. Elle est également le point de départ des débats actuels de la politique éducative suisse. Suite à ces résultats, un projet a été mandaté par la CDIP et va être traité dans le courant de l’année 2015. Suite à ce projet et aux débats actuels, nous nous sommes posé la question de la possibilité d’une harmonisation en Suisse au secondaire II.
High-Resolution X-Ray Spectroscopy of the Bursting Pulsar GRO J1744-28
Creators: name: Degenaar, N.
name: Miller, J. M.
name: Harrison, F. A.
name: Kennea, J. A.
name: Kouveliotou, C.
name: Younes, G.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The bursting pulsar GRO J1744-28 is a Galactic low-mass X-ray binary that distinguishes itself by displaying type-II X-ray bursts: brief, bright flashes of X-ray emission that likely arise from spasmodic accretion. Combined with its coherent 2.1 Hz X-ray pulsations and relatively high estimated magnetic field, it is a particularly interesting source to study the physics of accretion flows around neutron stars. Here we report on Chandra/HETG observations obtained near the peak of its bright 2014 accretion outburst. Spectral analysis suggests the presence of a broad iron emission line centered at E_l ~ 6.7 keV. Fits with a disk reflection model yield an inclination angle of i ~ 52 degrees and an inner disk radius of R_in ~ 85 GM/c^2, which is much further out than typically found for neutron star low-mass X-ray binaries. Assuming that the disk is truncated at the magnetospheric radius of the neutron star, we estimate a magnetic field strength of B ~ (2-6)E10 G. Furthermore, we identify an absorption feature near ~6.85 keV could correspond to blue-shifted Fe xxv and point to a fast disk wind with an outflow velocity of v_out ~ (7.5-8.2)E3 km/s (~0.025c-0.027c). If the covering fraction and filling factor are large, this wind could be energetically important and perhaps account for the fact that the companion star lost significant mass while the magnetic field of the neutron star remained strong.
description: Accepted for publication in ApJ Letters, 6 pages, 4 figures, 1 table
Les émotions perçues par les élèves du cycle 1 et du cycle 2 face à la violence fictive
Creators: name: Guerry, Pauline
name: Aravena Acevedo, Leticia
Publisher: name: Unknown
Year: 0
Subjects: subject: Empathie
subject: Emotions
subject: Violence
subject: Enfants
subject: Compréhension
subject: Perception

description: La violence est un phénomène connu et qui se manifeste à l’école ou ailleurs. Il existe plusieurs types de violences mais nous avons traité les violences physiques, verbales et de l'exclusion. Nous avons mis en lien ces différentes formes de violence avec les émotions perçues. En effet, notre recherche est basée sur les émotions perçues par des élèves du cycle 1 et du cycle 2 face à la violence fictive. Il nous a semblé intéressant de comparer lesperceptions des élèves des deux cycles. Notre enquête a été réalisée auprès de dix-huit élèves : neuf élèves de 2P et neuf élèves de 6P. Grâce à un questionnaire adapté, les élèves ont dû s’exprimer en identifiant des émotions. Ils avaient donc le choix entre les quatre émotions de base qui sont la joie, la colère, la peur et la tristesse. Après avoir mené nos entretiens individuels, nous avons analysé les réponses des élèves des deux cycles séparément puis nous avons fait une comparaison des deux classes afin d’extraire des éléments significatifs à notre recherche.
description: Mémoire professionnel, Bachelor of arts en enseignement pour les degrés préscolaire et primaire
A fermionic path integral for exact enumeration of polygons on the simple cubic lattice
Creators: name: Viswanathan, G. M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Enumerating polygons on regular lattices is a classic problem in rigorous statistical mechanics. The goal of enumerating polygons on the square lattice via fermionic path integration was achieved using a free-fermion quadratic action in the late 1970s. Given that polygon edges only link 2 vertices, it is considered plausible, if not natural, that an action of degree 2 in the Grassmann variables might suffice to enumerate lattice polygons in any dimension. Nevertheless, on nonplanar lattices the problem has remained open for more than four decades. Here we derive the Grassmann action for exact enumeration of polygons on the simple cubic lattice. Moreover, we prove that this action is not quadratic but quartic -- corresponding to a model of interacting fermions.
description: Submitted to Physical Review B